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WO2019062681A1 - 一种上行传输、配置方法、终端及基站 - Google Patents

一种上行传输、配置方法、终端及基站 Download PDF

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Publication number
WO2019062681A1
WO2019062681A1 PCT/CN2018/107212 CN2018107212W WO2019062681A1 WO 2019062681 A1 WO2019062681 A1 WO 2019062681A1 CN 2018107212 W CN2018107212 W CN 2018107212W WO 2019062681 A1 WO2019062681 A1 WO 2019062681A1
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WIPO (PCT)
Prior art keywords
reference signal
uplink reference
uplink
information
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/107212
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English (en)
French (fr)
Inventor
黄秋萍
高秋彬
塔玛拉卡⋅拉盖施
李辉
陈润华
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China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
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Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to EP18861467.1A priority Critical patent/EP3691212B1/en
Priority to JP2020517465A priority patent/JP7249334B2/ja
Priority to KR1020207011057A priority patent/KR102345914B1/ko
Priority to US16/652,371 priority patent/US11284246B2/en
Publication of WO2019062681A1 publication Critical patent/WO2019062681A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24Transfer of terminal data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025Transmission of mode-switching indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/10Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an uplink transmission, a configuration method, a terminal, and a base station.
  • Rel-9 focuses on MU-MIMO technology, and TM (Transmission Mode)-8 MU-MIMO (Multi-User MIMO) transmission can support up to 4 downlink data layers.
  • Rel-10 introduces support for 8 uplink reference signal ports to further improve the spatial resolution of channel state information, and further expands the transmission capability of SU-MIMO (Single-User MIMO) to a maximum of 8 data layers.
  • SU-MIMO Single-User MIMO
  • Rel-13 and Rel-14 introduce FD-MIMO technology to support 32 ports for beamforming in both full and vertical directions.
  • full-scale antenna technology is introduced in mobile communication systems.
  • fully digital large-scale antennas can have up to 128/256/512 antenna elements, and up to 128/256/512 transceiver units, one for each antenna unit.
  • the terminal measures channel state information and feeds back by transmitting pilot signals up to 128/256/512 uplink reference signal ports.
  • antenna arrays of up to 32/64 antenna elements can also be configured.
  • a huge beamforming gain is obtained to compensate for the signal attenuation caused by the path loss.
  • the path loss makes the coverage of wireless signals extremely limited.
  • the coverage of wireless signals can be expanded to a practical range.
  • codebook-based uplink transmission is a commonly used uplink transmission technology.
  • a terminal transmits an uplink reference signal (eg, a sounding reference signal SRS) to a base station (BS).
  • an uplink reference signal eg, a sounding reference signal SRS
  • the base station After measuring the uplink reference signal, the base station determines information such as TPMI (transmit precoding matrix indication), TRI (transmission rank indication), and MCS (modulation and coding strategy) used by the terminal, performs uplink scheduling of the UE, and passes DCI (downlink control). Information) Indicating uplink scheduling related information such as TRI, TPMI, and MCS to the UE.
  • TPMI transmit precoding matrix indication
  • TRI transmission rank indication
  • MCS modulation and coding strategy
  • the UE determines the precoding/beamforming used for uplink data (or signal) transmission using the TRI and TPMI indicated by the base station, and uses the precoding/beamforming for data transmission.
  • the base station determines the TPMI and TRI information used by the terminal, and the terminal determines the precoding/beamforming of the data transmission according to the TPMI and TRI indications, all of which need to be determined based on the codebook.
  • some UEs are limited by hardware implementation. Although multiple transmission paths can be supported, coherent transmission cannot be performed on all transmission paths due to phase incompatibility between different paths. That is, it is impossible to simultaneously transmit a layer (or stream) signal on these transmission paths.
  • the base station can perform coherent transmission for uplink scheduling based on all the transmission paths of the terminal, the estimated performance at the time of scheduling does not match the performance of the actual transmission, thereby degrading the performance of the uplink transmission.
  • the terminal needs to report the coherent transmission capability of its transmission path to ensure that the base station side and the terminal side have the same assumptions for the transmission path to ensure the performance of the uplink transmission.
  • the present disclosure provides an uplink transmission, a configuration method, a terminal, and a base station.
  • a transmission and reception scheme is proposed for the interaction information between the terminal and the base station on the coherent transmission capability of the transmission path, and an interaction scheme based on the resource configuration and the uplink access grant of the interaction scheme to ensure the uplink transmission performance of the terminal.
  • An uplink transmission method includes:
  • the method Before sending the uplink reference signal according to the configuration information of the uplink reference signal resource, the method includes: transmitting, to the base station, the coherent transmission capability information of the terminal.
  • the step of acquiring configuration information of the uplink reference signal resource configured by the base station for the terminal includes:
  • the method further includes: receiving coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource sent by the base station.
  • the sending the uplink reference signal according to the configuration information of the uplink reference signal resource includes:
  • the coherent transmission relationship information is coherent transmission relationship information between uplink reference signal ports in each uplink reference signal resource.
  • the coherent transmission relationship information is included in the configuration information of the uplink reference signal resource, or the coherent transmission relationship information is a separately indicated information.
  • the coherent transmission relationship information is determined according to the coherent transmission capability information.
  • the indication information of the uplink transmission and the content of the indication thereof are determined according to the coherent transmission relationship and an uplink reference signal received by the base station.
  • the coherent transmission capability information of the terminal is an antenna coherent transmission capability supported by the terminal.
  • the antenna may be: a physical antenna, a transmission path, a transceiver unit TXRU, or an uplink reference signal port.
  • mapping relationship between the coherent transmission relationship between the uplink reference signal ports and the coherent transmission capability of the terminal included in the uplink reference signal resource configured by the base station is predefined.
  • the coherent transmission capability information of the terminal includes antenna grouping information, wherein antennas in each antenna group can be coherently transmitted, and antennas in different antenna groups cannot be coherently transmitted.
  • the antenna group information includes information about the number of antenna groups and the number of antennas included in each antenna group.
  • the coherent transmission capability information of the terminal further includes total antenna number information.
  • the coherent transmission capability information of the terminal includes information that at least part of the antenna of the terminal can be coherently transmitted or information that all antennas of the terminal cannot be coherently transmitted.
  • the coherent transmission capability information of the terminal includes the maximum or minimum number of antennas that can be coherently transmitted by the terminal.
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the coherent transmission relationship information specifically includes the maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the grouping information of the uplink reference signal port in the coherent transmission relationship information specifically includes:
  • the configuration information of the uplink reference signal resource includes one uplink reference signal resource or multiple uplink reference signal resources, only at least one uplink reference signal resource may be coherently transmitted;
  • the configuration information of the uplink reference signal resource includes multiple uplink reference signal resources, all uplink reference signal ports in each uplink reference signal resource may be coherently transmitted, and different uplink reference signal resources may not be coherently transmitted; or
  • the uplink reference signal port in each uplink reference signal resource may be coherently transmitted, and some uplink reference signal resources may be coherently transmitted;
  • a part of the uplink reference signal port in one uplink reference signal resource may be coherently transmitted with a part of the uplink reference signal port in another uplink reference signal resource.
  • the multiple uplink reference signal resources are divided into resource groups, and all uplink reference signal resources in the same resource group have the same uplink reference signal.
  • the multiple uplink reference signal resources are divided into resource groups, and any two resource groups include the same number of uplink reference signals and resources in the resource group.
  • the configuration information includes: the number of uplink reference signal resources and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the coherent transmission relationship information includes:
  • the coherent transmission relationship information is a coherent transmission relationship between uplink reference signal ports of one uplink reference signal resource, and the relationship is applied to all Uplink reference signal resources;
  • each uplink reference signal resource group includes one or more uplink reference signal resources, and the coherent transmission relationship information indicates an uplink reference signal resource.
  • the coherent transmission relationship between the uplink reference signal ports, the relationship may be applied to all uplink reference signal resources in the uplink reference signal resource group where the uplink reference signal resource is located; or
  • the coherent transmission relationship information indicates a coherent transmission relationship between uplink reference signal ports in an uplink reference signal resource group, and the relationship may be applied. To all upstream reference signal resource groups.
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal port and the antenna group;
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal resource and the antenna group.
  • the method further includes:
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the step of receiving the indication information of the uplink transmission determined by the base station, and performing the uplink transmission includes: the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI;
  • a precoding matrix of the uplink transmission Based on the indication information, a precoding matrix of the uplink transmission, a number of transmission streams, and an antenna used are determined.
  • the method further includes:
  • the coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource configured by the base station for the terminal is sent to the base station.
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the coherent transmission relationship information specifically includes the maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the sending the uplink reference signal further includes:
  • a transmitting antenna used for transmitting each uplink reference signal wherein the uplink reference signal is sent on an uplink reference signal port that can be coherently transmitted using an antenna that can be coherently transmitted.
  • the step of receiving the indication information of the uplink transmission determined by the base station, and performing the uplink transmission includes: the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI;
  • a precoding matrix of the uplink transmission Based on the indication information, a precoding matrix of the uplink transmission, a number of transmission streams, and an antenna used are determined.
  • the terminal receives the indication information of the uplink transmission determined by the base station, and the step of performing the uplink transmission includes: determining, according to the indication information and the coherent transmission relationship, a precoding matrix, a number of transmission streams, and an used antenna for uplink transmission.
  • the disclosure also provides a configuration method for uplink transmission, including:
  • the uplink reference signal sent by the receiving terminal according to the configuration information configured by the base station;
  • the indication information determined by the base station for uplink transmission is sent to the terminal.
  • the method Before the uplink reference signal sent by the receiving terminal according to the configuration information configured by the base station, the method includes:
  • the step of configuring configuration information of the uplink reference signal resource for the terminal includes:
  • the configuration information of the uplink reference signal resource is determined according to the coherent transmission capability information reported by the terminal.
  • the method further includes: transmitting, to the terminal, the coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource.
  • the coherent transmission relationship information is coherent transmission relationship information between uplink reference signal ports in each uplink reference signal resource.
  • the coherent transmission relationship information is included in the configuration information of the uplink reference signal resource, or the coherent transmission relationship information is a separately indicated information.
  • the coherent transmission relationship information is determined according to the coherent transmission capability information.
  • the indication information of the uplink transmission and the content of the indication thereof are determined according to the coherent transmission relationship and an uplink reference signal received by the base station.
  • the coherent transmission capability information of the terminal is an antenna coherent transmission capability supported by the terminal.
  • the antenna is: a physical antenna, a transmission path, a transceiver unit TXRU, or an uplink reference signal port.
  • the coherent transmission capability information of the terminal includes antenna grouping information, wherein antennas in each antenna group can be coherently transmitted, and antennas in different antenna groups cannot be coherently transmitted.
  • the coherent transmission capability information of the terminal further includes total antenna number information.
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the coherent transmission relationship information specifically includes the maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the grouping information of the uplink reference signal port in the coherent transmission relationship information specifically includes:
  • the configuration information of the uplink reference signal resource includes an uplink reference signal resource or a plurality of uplink reference signal resources, at least one of the uplink reference signal resources may only be partially coherently transmitted;
  • the configuration information of the uplink reference signal resource includes multiple uplink reference signal resources, all uplink reference signal ports in each uplink reference signal resource may be coherently transmitted, and different uplink reference signal resources may not be coherently transmitted; or
  • the uplink reference signal port in each uplink reference signal resource may be coherently transmitted, and some uplink reference signal resources may be coherently transmitted;
  • a part of the uplink reference signal port in one uplink reference signal resource may be coherently transmitted with a part of the uplink reference signal port in another uplink reference signal resource.
  • the multiple uplink reference signal resources are divided into resource groups, and all uplink reference signal resources in the same resource group have the same uplink reference signal.
  • the multiple uplink reference signal resources are divided into resource groups, and any two resource groups include the same number of uplink reference signals and resources in the resource group.
  • the configuration information includes: the number of uplink reference signal resources and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the coherent transmission relationship information includes:
  • the coherent transmission relationship information is a coherent transmission relationship between uplink reference signal ports of one uplink reference signal resource, and the relationship is applied to all Uplink reference signal resources;
  • each uplink reference signal resource group includes one or more uplink reference signal resources, and the coherent transmission relationship information indicates an uplink reference signal resource.
  • the coherent transmission relationship between the uplink reference signal ports, the relationship may be applied to all uplink reference signal resources in the uplink reference signal resource group where the uplink reference signal resource is located; or
  • the coherent transmission relationship information indicates a coherent transmission relationship between uplink reference signal ports in an uplink reference signal resource group, and the relationship may be applied. To all upstream reference signal resource groups.
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal port and the antenna group;
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal resource and the antenna group.
  • the method further includes:
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the step of configuring configuration information of the uplink reference signal resource for the terminal includes:
  • the configuration information of the uplink reference signal resource configured for the terminal is directly sent to the terminal.
  • the method further includes:
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the step of sending the indication information of the uplink reference signal resource determined by the base station to the terminal includes:
  • the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI.
  • the indication information of the uplink transmission is determined according to the coherent transmission relationship.
  • the disclosure also provides a terminal, including:
  • An acquiring module configured to acquire configuration information of an uplink reference signal resource configured by the base station for the terminal;
  • a sending module configured to send an uplink reference signal according to the configuration information of the uplink reference signal resource
  • a receiving module configured to receive, by the terminal, indication information of an uplink transmission determined by the base station
  • the sending module is further configured to perform uplink transmission according to the indication information.
  • the sending module is further configured to send the coherent transmission capability information of the terminal to the base station.
  • the receiving module is specifically configured to receive configuration information of an uplink reference signal resource that is determined by the base station according to the coherent transmission capability information of the terminal.
  • the receiving module is further configured to receive coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource sent by the base station.
  • the sending module is specifically configured to determine, according to the configuration information of the uplink reference signal resource and the coherent transmission relationship information, a transmitting antenna corresponding to each uplink reference signal port included in the configuration information of the uplink reference signal resource, where An uplink reference signal is transmitted on the antenna.
  • mapping relationship between the coherent transmission relationship between the uplink reference signal ports and the coherent transmission capability of the terminal included in the uplink reference signal resource configured by the base station is predefined.
  • the sending module is further configured to determine, according to the coherent transmission capability of the terminal and the configuration information of the uplink reference signal resource, a coherent transmission relationship between the uplink reference signal ports included in the uplink reference signal resource configured by the base station, where the coherent transmission is performed.
  • the mapping relationship between the relationship and the coherent transmission capability of the terminal is predefined;
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the sending module is further configured to send, to the base station, coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource configured by the base station.
  • the sending module is further configured to determine, according to the coherent transmission relationship, a transmitting antenna used for transmitting each uplink reference signal, where the uplink reference signal is sent on an uplink reference signal port that can be coherently transmitted using an antenna that can be coherently transmitted.
  • the receiving module is specifically configured to:
  • the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI; determining, according to the indication information, a precoding matrix of the uplink transmission, a number of transmission streams, and an antenna used; or
  • the present disclosure also provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor is configured to read a program in the memory, and control
  • the transceiver performs the following process:
  • the disclosure also provides a base station, including:
  • a configuration module configured to configure configuration information of an uplink reference signal resource for the terminal
  • a receiving module configured to receive, by the terminal, an uplink reference signal that is sent according to configuration information configured by the base station;
  • a sending module configured to send, to the terminal, indication information that is determined by the base station for uplink transmission.
  • the receiving module is further configured to receive coherent transmission capability information of the terminal sent by the terminal.
  • the configuration module is specifically configured to determine configuration information of the uplink reference signal resource according to the coherent transmission capability information reported by the terminal.
  • the sending module is further configured to send, to the terminal, coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource.
  • mapping relationship between the coherent transmission relationship and the uplink reference signal port of the coherent transmission capability of the terminal is predefined.
  • the sending module is further configured to directly send, to the terminal, configuration information of an uplink reference signal resource configured for the terminal.
  • the receiving module is further configured to receive coherent transmission information between uplink reference signals sent by the terminal.
  • the sending module is specifically configured to send, to the terminal, indication information for uplink transmission determined according to the uplink reference signal, where the indication information includes: an uplink scheduling request indication SRI, or TPMI and TRI, or TPMI, TRI, and SRI Instructions.
  • the sending module is further configured to determine indication information of the uplink transmission according to the coherent transmission relationship.
  • the present disclosure also provides a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor is configured to read a program in the memory, and control
  • the transceiver performs the following process:
  • the uplink reference signal sent by the receiving terminal according to the configuration information configured by the base station;
  • the indication information determined by the base station for uplink transmission is sent to the terminal.
  • the present disclosure also provides a computer readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the method as described above.
  • the configuration information of the uplink reference signal resource configured by the base station is obtained by the base station; the uplink reference signal is sent according to the configuration information of the uplink reference signal resource; and the terminal receives the indication information of the uplink transmission determined by the base station; The indication information is transmitted in the uplink.
  • FIG. 1 is a flowchart of a method for uplink transmission on a terminal side according to some embodiments of the present disclosure
  • FIG. 2 is a schematic diagram of a process interaction of a first implementation of the method shown in FIG. 1;
  • FIG. 3 is a schematic diagram of a process interaction of a second implementation of the method shown in FIG. 1;
  • FIG. 4 is a schematic diagram of a process interaction of a third implementation scheme of the method shown in FIG. 1;
  • FIG. 5 is a flowchart of a method for configuring uplink transmission on a base station side according to some embodiments of the present disclosure
  • FIG. 6 is a schematic structural diagram of hardware devices of a terminal or a base station in some embodiments of the present disclosure.
  • the uplink reference signal in some embodiments of the present disclosure refers to an uplink reference signal having functions of uplink channel quality measurement, and/or beam measurement, and/or time-frequency measurement, and optionally, SRS (Sounding Reference Signal, Sounding) Reference Signal).
  • SRS Sounding Reference Signal, Sounding
  • some embodiments of the present disclosure provide an uplink transmission method, including:
  • Step 11 Obtain configuration information of an uplink reference signal resource configured by the base station for the terminal.
  • Step 12 Send an uplink reference signal according to the configuration information of the uplink reference signal resource.
  • Step 13 the terminal receives the indication information of the uplink transmission determined by the base station
  • Step 14 Perform uplink transmission according to the indication information.
  • an uplink transmission method includes:
  • Step 21 Send the coherent transmission capability information of the terminal to the base station; the coherent transmission capability information of the terminal is the antenna coherent transmission capability supported by the terminal.
  • the antenna may be: a physical antenna, a transmission path, a transceiver unit TXRU, or an uplink reference signal port.
  • Step 22 Receive configuration information of an uplink reference signal resource determined by the base station.
  • the base station determines configuration and configuration information of the uplink reference signal resource according to the coherent transmission capability information sent by the terminal.
  • the method further includes:
  • Step 20 Receive coherent transmission relationship information between uplink reference signal ports included in the uplink reference signal resource sent by the base station.
  • the coherent transmission relationship information may be coherent transmission relationship information between uplink reference signal ports in each uplink reference signal resource.
  • the coherent transmission relationship information may be included in configuration information of the uplink reference signal resource, or the coherent transmission relationship information is a separately indicated information.
  • the coherent transmission relationship information may be determined according to the coherent transmission capability information.
  • the coherent transmission relationship may also be determined according to the coherent transmission capability information. For example, even if the coherent transmission capability information indicates that all antennas of the terminal can be coherently transmitted, the coherent transmission relationship information sent by the base station may be all uplink reference signal ports. No coherent transmission is performed.
  • Step 23 Determine, according to the configuration information of the uplink reference signal resource and the coherent transmission relationship information, a transmitting antenna corresponding to each uplink reference signal port included in the configuration information of the uplink reference signal resource, and send an uplink reference signal on the antenna.
  • Step 24 The terminal receives uplink transmission indication information determined by the base station according to the coherent transmission relationship and the uplink reference signal received by the base station.
  • the coherent transmission relationship information may be coherent transmission relationship information between uplink reference signal ports in each uplink reference signal resource.
  • the coherent transmission relationship information may be included in configuration information of the uplink reference signal resource, or the coherent transmission relationship information is a separately indicated information.
  • the coherent transmission relationship information is determined according to the coherent transmission capability information.
  • the indication information of the uplink transmission and the content of the indication thereof are determined according to the coherent transmission relationship and an uplink reference signal received by the base station.
  • the coherent transmission relationship information specifically includes packet information of an uplink reference signal port, where an uplink reference signal port in each uplink reference signal port group can perform coherent transmission, and uplink reference signals in different uplink reference signal port groups The port does not perform coherent transmission.
  • the coherent transmission relationship information specifically includes maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the uplink transmission method includes:
  • Step 1 The UE reports the coherent transmission capability
  • Step 2 The base station determines configuration information of the uplink reference signal resource, and sends the configuration information to the terminal.
  • the base station determines configuration information of the uplink reference signal resource according to the coherent transmission capability of the terminal;
  • the uplink reference signal resource configuration information sent by the base station to the terminal includes coherent transmission relationship information of the uplink reference signal uplink reference signal port in each uplink reference signal resource.
  • Step 3 The terminal sends an uplink reference signal according to the uplink reference signal resource configured by the base station.
  • Step 4 The base station receives the uplink reference signal sent by the terminal, and determines SRI and/or TPMI, TRI.
  • Step 5 The base station sends an SRI and/or TPMI, TRI indication for uplink transmission to the terminal.
  • Step 6 The terminal determines the precoding of the uplink transmission, the number of data streams, and the antenna used.
  • the timing relationships of steps 2 and 3 may be exchanged. If the base station determines the configuration information of the uplink reference signal resource according to the coherent transmission capability of the terminal, the step of reporting the coherent transmission capability of the UE needs to determine the configuration information of the uplink reference signal resource before the base station. Otherwise, the step of reporting the coherent transmission capability of the UE may be performed by determining, by the base station, the configuration information of the uplink reference signal resource, or determining, by the base station, the configuration information of the uplink reference signal resource.
  • the coherent transmission capability reported by the terminal includes at least the coherent transmission capability information of the terminal, including antenna packet information, wherein antennas in each antenna group can be coherently transmitted, and antennas in different antenna groups cannot be coherently transmitted.
  • the antenna group information includes information about the number of antenna groups and the number of antennas included in each antenna group.
  • the coherent transmission capability information of the terminal further includes total antenna number information.
  • the coherent transmission capability information of the terminal includes information that at least part of the antenna of the terminal can be coherently transmitted or information that all antennas of the terminal cannot be coherently transmitted.
  • the coherent transmission capability information of the terminal includes the maximum or minimum number of antennas that can be coherently transmitted by the terminal.
  • the coherent transmission relationship information specifically includes packet information of an uplink reference signal port, where an uplink reference signal port in each uplink reference signal port group can perform coherent transmission, and uplink reference signals in different uplink reference signal port groups The port does not perform coherent transmission.
  • the coherent transmission relationship information specifically includes maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the terminal coherent transmission capability information may include one or more of the following information:
  • the number of antennas supported by the terminal is the number of antennas supported by the terminal.
  • All antennas of the terminal can be transmitted coherently;
  • the number of antenna groups that the terminal can transmit coherently is the number of antenna groups that the terminal can transmit coherently
  • the number of antennas included in each antenna group that the terminal can coherently transmit is the number of antennas included in each antenna group that the terminal can coherently transmit
  • the maximum number of antennas supported by the terminal that can be coherently transmitted for example, supporting up to one antenna for coherent transmission (ie, coherent transmission between antennas is not supported), supporting up to two antennas, and coherent transmission of four antennas;
  • the number of antenna groups supported by the terminal that include a specific number of antennas.
  • the specific value is a value agreed by the terminal and the base station or a value determined according to a rule agreed by the terminal and the base station, for example:
  • the number of antenna panels supported by the terminal is the number of antenna panels supported by the terminal.
  • the number of antennas included in each antenna panel supported by the terminal is the number of antennas included in each antenna panel supported by the terminal.
  • the number of antennas supported by the terminal or the panel is the number of antennas supported by the terminal or the panel.
  • the antenna of one or more panels supported by the terminal can be coherently transmitted
  • the maximum number of antennas supported by one or more panels of the terminal that can be coherently transmitted is the maximum number of antennas supported by one or more panels of the terminal that can be coherently transmitted
  • One or more panels of the terminal include the number of antenna groups having a specific number of antennas
  • the terminal does not report the coherent transmission capability between the antennas, all the antennas of the default terminal cannot be coherently transmitted.
  • the terminal does not report the coherent transmission capability between the antennas, and all the antennas of the default terminal can be coherently transmitted.
  • the terminal also reports the maximum data flow number information supported by the terminal.
  • the associated transmission capability information contains only a number of states, each state representing whether the antenna of the terminal can be coherently transmitted, or none of the coherent transmissions, or only partially coherently transmitted.
  • Part of the coherent transmission may also correspond to the number of antennas that the terminal can simultaneously transmit coherently or the minimum number of antennas that can be coherently transmitted simultaneously. This value can be carried by a special piece of information or according to certain conventions.
  • the agreed partial coherent transmission can be coherently transmitted corresponding to two antennas.
  • the specific meaning is that the terminal includes several antenna groups, each antenna group contains two antennas, and the antennas in the antenna group can be coherently transmitted, and the antennas between the antenna groups cannot be coherent. transmission.
  • each state included in the associated transmission capability information represents the maximum number of antennas that the terminal can coherently transmit, for example:
  • each state contained in the associated transmission capability information represents the minimum number of antennas that the terminal can coherently transmit, for example:
  • the number of antennas that can be simultaneously coherently transmitted by the terminal corresponds to the following values: It is assumed that the antenna that can be coherently transmitted is considered to be a coherent transmission antenna group, and the minimum number of antennas included in all coherent transmission antenna groups.
  • 2 bits are used to indicate the coherent transmission capability of the terminal antenna.
  • the base station determines configuration information of the uplink reference signal resource, and when transmitting the configuration information to the terminal, the configuration of the uplink reference signal resource and the uplink reference signal in the coherent transmission relationship information
  • the group information of the port specifically includes:
  • Manner 1 The base station configures an uplink reference signal or multiple resources, and some uplink reference signal ports in each uplink reference signal resource can be coherently transmitted.
  • the base station configures one or more uplink reference signal resources, and the uplink reference signal ports in each uplink reference signal resource can be coherently transmitted, and different uplink reference signal resources cannot be coherently transmitted.
  • the base station configures multiple uplink reference signal resources, and the uplink reference signal port in each uplink reference signal resource can be coherently transmitted, and some uplink reference signal resources can also be coherently transmitted.
  • the base station configures multiple uplink reference signal resources, and some uplink reference signal ports in one uplink reference signal resource may be coherently transmitted with some uplink reference signal ports in another uplink reference signal resource.
  • the base station configures multiple uplink reference signal resources, and the multiple uplink reference signal resources are divided into resource groups. All uplink reference signal resources in the same resource group have the same number of uplink reference signal ports, and any two in the same resource group.
  • the uplink reference signal resources have coherent transmission relationships between the uplink reference signal ports in the same uplink reference signal resource.
  • two uplink reference signal resources in the same resource group cannot be used for the uplink reference signal transmission at the same time.
  • the base station configures multiple uplink reference signal resources, and the multiple uplink reference signal resources are divided into resource groups, and any two resource groups include the same uplink reference signal resource configuration and an uplink reference signal of the uplink reference signal resource in the resource group. Coherent transmission relationship between ports. Optionally, two uplink reference signal resource groups cannot be used for the transmission of the uplink reference signal at the same time.
  • the base station notifies the terminal of the configuration information of the uplink reference signal resource, where the configuration information includes the number of configured uplink reference signal resources, and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the uplink reference signal resource configuration information sent by the base station to the terminal includes the coherent transmission relationship information of the uplink reference signal port in each uplink reference signal resource.
  • the configuration information includes: the number of uplink reference signal resources and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the coherent transmission relationship information may be a mapping relationship between the uplink reference signal port and the antenna group;
  • the coherent transmission relationship information may be a mapping relationship between the uplink reference signal resource and the antenna group.
  • the method further includes:
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the terminal receives the indication information of the uplink transmission determined by the base station, and the step of performing the uplink transmission includes:
  • the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI;
  • a precoding matrix of the uplink transmission Based on the indication information, a precoding matrix of the uplink transmission, a number of transmission streams, and an antenna used are determined.
  • the coherent transmission relationship information of the uplink reference signal port is used to indicate which uplink reference signal ports are coherently transmitted, and which uplink reference signal ports cannot be coherently transmitted.
  • Method 1 Only the information of the uplink reference signal port group that can be coherently transmitted is indicated, and the coherent transmission is not performed by default between the uplink reference signal port groups.
  • the uplink reference signal resource includes four uplink reference signal ports, and the base station only indicates that the first uplink reference signal port and the second uplink reference signal port are coherently transmitted, and the terminal After receiving the indication information, it is considered that the first and second uplink reference signal ports form an uplink reference signal port group that can be coherently transmitted, and the third uplink reference signal port is an uplink reference signal port group, and the fourth uplink reference port The signal port is an uplink reference signal port group, and no coherent transmission is performed between these uplink reference signal port groups.
  • the terminal selects two coherent transmission antennas to transmit the first and second uplink reference signal ports, and selects two antennas to transmit the third and fourth uplink reference signal ports.
  • the antenna used by the terminal to transmit the third and fourth uplink reference signal ports and the antenna for transmitting the first and second uplink reference signal ports may belong to the same antenna group that can be coherently transmitted, or may be different coherent transmissions. Antenna group.
  • the antennas that are used by the terminal to transmit the three uplink reference signal port groups belong to different coherent transmission antenna groups.
  • the base station indicates that the first uplink reference signal port and the second uplink reference signal port are coherently transmitted, and the third and fourth uplink reference signal ports can be coherently transmitted, and after receiving the indication information, the terminal considers that One and the second uplink reference signal port form an uplink reference signal port group that can be coherently transmitted, and the third and fourth uplink reference signal ports form another uplink reference signal port group that can be coherently transmitted. Coherent transmission between reference signal port groups.
  • the terminal selects two antennas from a coherent transmission antenna group including at least two antennas for transmitting an uplink reference signal corresponding to the first uplink reference signal port and the second uplink reference signal port, and selecting two of the other antennas.
  • the antennas respectively transmit uplink reference signals corresponding to the third and fourth uplink reference signal ports.
  • the example can be extended to indicate whether the base station is configured with multiple uplink reference signal resources, each of the uplink reference signal resources.
  • Method 2 Indicate the coherent transmission relationship between all uplink reference signal ports. For example, the number of uplink reference signal port groups included in the indication, the number of uplink reference signal ports included in each uplink reference signal port group, and the base station and the terminal default to the uplink reference signal port in the same uplink reference signal port group can be coherently transmitted, and different uplink references
  • the upstream reference signal port of the signal port group is not coherently transmitted.
  • the terminal determines the antenna corresponding to each uplink reference signal port according to the coherent transmission relationship between the uplink reference signal ports indicated by the base station, and ensures that the antenna corresponding to the uplink reference signal port that can be coherently transmitted is an antenna that can be coherently transmitted.
  • the uplink reference signal resource configuration information may not explicitly indicate the number of uplink reference signal ports corresponding to each uplink reference signal resource or the total number of uplink reference signal ports included in the uplink reference signal resource configuration. .
  • the uplink reference signal resource configuration information includes the total number of uplink reference signal ports of all uplink reference signal resources or the number of uplink reference signal ports included in each uplink reference signal resource. It is assumed that the uplink reference signal port that can be coherently transmitted constitutes an uplink reference signal port group.
  • the terminal must map the uplink reference signal port group including more uplink reference signal ports that can be coherently transmitted to the smaller uplink reference signal port. On the sequence number, the uplink reference signal port group containing fewer uplink reference signal ports is mapped to the larger uplink reference signal port number. In this way, when the base station configures an uplink reference signal resource, the uplink reference signal port can be used to transmit information coherently with less bits.
  • the coherent transmission relationship between the uplink reference signal ports includes only the following types: (1, 1, 1, 1), (2, 1, 1) ), (2, 2), (3, 1), (4) requires a 3-bit indication, where (X1, X2, X3, X4) represents the presence of 4 uplink reference signal port groups, and the first group contains X1 The uplink reference signal port, the second group contains X2 uplink reference signal ports, ..., the uplink reference signal ports in the group are coherently transmitted, and the groups are non-coherently transmitted. If the limit is based on the transmission capacity of the terminal, the number of bits required is smaller.
  • the terminal supports the coherent transmission of up to two uplink reference signal ports, it only contains (1,1,1,1), (2,1,1), (2,2), and the 2-bit indication is enough. .
  • the coherent transmission relationship between the uplink reference signal ports is combined with the number of uplink reference signal ports included in the uplink reference signal resource.
  • the base station is configured with an uplink reference signal resource, and the number of uplink reference signal ports that can be configured for one uplink reference signal resource is 2 and 4, and the coherent transmission relationship between the uplink reference signal ports is at most: (1, 1), (2) , (1,1,1,1), (2,1,1), (2,2), (3,1), (4), the number of uplink reference signal ports and uplink reference included in the uplink reference signal resource
  • the total number of bits required for the coherent transmission relationship between the signal ports is three. As in the previous example, if the limit is based on the coherent transmission capability of the terminal, the number of bits required is smaller.
  • the number of bits required for the coherent transmission relationship between the uplink reference signal ports or the coherent transmission relationship between the uplink reference signal ports and the uplink reference are determined according to the coherent transmission capability of the terminal and the number of uplink reference signal ports allowed by the uplink reference signal resources. The number of bits required for the number of signal ports.
  • Method 4 The base station configures multiple uplink reference signal resources to indicate a coherent transmission relationship between uplink reference signal ports of an uplink reference signal resource, and the relationship can be applied to all uplink reference signal resources.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource may be method one or two or three. (This method can be used for beam management, for transmitting or receiving beam scanning scenarios. Different uplink reference signal resources correspond to different transmit beams or different receive beams).
  • the terminal determines the antenna corresponding to each uplink reference signal port according to the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resources indicated by the base station, and ensures that the antenna used for transmitting the uplink reference signal port that can be coherently transmitted is an antenna that can be coherently transmitted.
  • the terminal sends the uplink reference signal to the different uplink reference signal resources by using the same antenna.
  • Method 5 The base station is configured with multiple uplink reference signal resource groups, and each uplink reference signal resource group includes one or more uplink reference signal resources, indicating a coherent transmission relationship between uplink reference signal ports of an uplink reference signal resource, and the relationship It can be applied to all uplink reference signal resources in the uplink reference signal resource group where the uplink reference signal resource is located.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource may be method one or two or three.
  • the terminal determines the antenna corresponding to each uplink reference signal port according to the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resources indicated by the base station, and ensures that the antenna used for transmitting the uplink reference signal port that can be coherently transmitted is an antenna that can be coherently transmitted.
  • the terminal sends the uplink reference signal to the different uplink reference signal resources by using the same antenna.
  • the base station configures multiple uplink reference signal resource groups, and the base station indicates a coherent transmission relationship between the uplink reference signal ports in an uplink reference signal resource group, and the relationship can be applied to all uplink reference signal resource groups.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource group may be method one or two or three.
  • the terminal according to the uplink reference signal port of the uplink reference signal resource in an uplink reference signal resource group indicated by the base station
  • the coherent transmission relationship determines the antenna corresponding to each uplink reference signal port, and the antenna for transmitting the uplink reference signal port that can be coherently transmitted is an antenna that can be coherently transmitted.
  • the terminal sends the uplink reference signal to the different uplink reference signal resource groups by using the same antenna.
  • the base station only configures one uplink reference signal resource, and the coherent transmission relationship between the terminal and the uplink reference signal port of the uplink reference signal resource configured by the base station and the base station corresponds to the coherent transmission capability reported by the terminal.
  • the NKth coherent transmission antenna group reported by the terminal includes Mk antennas, and the first M1 uplink reference signal ports of the uplink reference signal resources configured by the base station correspond to the first antenna group reported by the terminal, ..., the uplink configured by the base station Reference signal resource To the first
  • the uplink reference signal port corresponds to the kth antenna group reported by the terminal, and so on.
  • the base station is configured with two uplink reference signal resources, where the first uplink reference signal resource corresponds to the first X1 antenna groups that can be coherently transmitted, and the second uplink reference signal resource corresponds to the X1+1 reported by the terminal. ⁇ X2 antenna groups that can be coherently transmitted.
  • the terminal After receiving the uplink reference signal configuration information of the base station, the terminal determines the antenna for transmitting each uplink reference signal resource in this default manner.
  • the base station configures a plurality of uplink reference signal resources, and the coherent transmission relationship between the terminal and the uplink reference signal port of the uplink reference signal resource configured by the base station by the base station corresponds to the coherent transmission capability reported by the terminal.
  • the NKth coherent transmission antenna group reported by the terminal includes Mk antennas, and the first M1 uplink reference signal ports of each uplink reference signal resource configured by the base station correspond to the first antenna group reported by the terminal, ..., base station configuration The number of each upstream reference signal resource To the first The uplink reference signal port corresponds to the kth antenna group reported by the terminal, and so on.
  • the terminal After receiving the uplink reference signal configuration information of the base station, the terminal determines the antenna for transmitting each uplink reference signal resource in this default manner.
  • the terminal For mode 2 (or five to six corresponding to mode 2), if the uplink reference signal resource configuration information sent by the base station includes the number of uplink reference signal ports included in each uplink reference signal resource, the terminal according to each uplink reference The number of uplink reference signal ports included in the signal resource determines the antenna s corresponding thereto, and the terminal needs to ensure that the antennas s for transmitting the uplink reference signal corresponding to one uplink reference signal resource can be coherently transmitted.
  • the antennas that are used by the terminal to transmit the three uplink reference signal port groups belong to different coherent transmission antenna groups.
  • the uplink reference signal resource configuration information sent by the base station does not include the number of uplink reference signal ports included in each uplink reference signal resource, and the terminal reports the
  • the first NK coherent transmission antenna group includes Mk antennas
  • the first uplink reference signal resource configured by the base station includes M1 uplink reference signal ports, corresponding to the first antenna group reported by the terminal, ..., K uplinks configured by the base station
  • the reference signal resource includes Mk uplink reference signal ports, corresponding to the kth antenna group reported by the terminal, and so on.
  • the total number of uplink reference signal ports included in all uplink reference signal resources configured by the base station may be equal to or greater than the total number of antennas reported by the terminal.
  • the base station sends the total uplink reference signal port number information of all configured uplink reference signal resources.
  • the uplink reference signal resource configuration information sent by the base station includes the coherent transmission relationship information between the uplink reference signal resources.
  • the coherent transmission relationship information between the uplink reference signal resources is used to indicate which uplink reference signal ports of the uplink reference signal resources are coherently transmitted, and the uplink reference signal ports between the uplink reference signal resources cannot be coherently transmitted.
  • Method 1 Only information of the uplink reference signal resource group that can be coherently transmitted is indicated, and the coherent transmission is not performed by default between the uplink reference signal resource groups.
  • the base station only indicates that the first uplink reference signal resource and the second uplink reference signal resource are coherently transmitted, and the terminal considers the first sum after receiving the indication information.
  • the second uplink reference signal resource constitutes an uplink reference signal resource group that can be coherently transmitted.
  • the third uplink reference signal resource is an uplink reference signal resource group
  • the fourth uplink reference signal resource is an uplink reference signal resource group. Coherent transmission is not performed between the uplink reference signal resource groups.
  • the terminal selects the first uplink reference signal resource and the uplink reference signal port included in the second uplink reference signal resource, and the first and second uplink reference signal resources may be sent by the coherent transmission antenna, and the third uplink is selected.
  • the reference signal resource includes an uplink reference signal port, and a plurality of antennas that can coherently transmit a third uplink reference signal resource
  • the fourth uplink reference signal resource includes an uplink reference signal port, and the antennas that can be coherently transmitted send a fourth uplink. Reference signal resource.
  • the antenna used by the terminal to transmit the third and fourth uplink reference signal resources and the antenna for transmitting the first and second uplink reference signal resources may belong to the same antenna group that can be coherently transmitted, or may be different coherent transmission. Antenna group.
  • the antennas that are used by the terminal to transmit the three uplink reference signal resource groups belong to different coherent transmission antenna groups.
  • Method 2 Indicate the coherent transmission relationship between all uplink reference signal resources.
  • the indication includes several uplink reference signal resource groups, and each uplink reference signal resource group includes several uplink reference signal resources.
  • the terminal determines the antenna corresponding to each uplink reference signal resource according to the coherent transmission relationship between the uplink reference signal resources indicated by the base station, and ensures that the antenna for transmitting the uplink reference signal port of the uplink reference signal resource that can be coherently transmitted is an antenna that can be coherently transmitted.
  • Method 3 The base station configures multiple uplink reference signal resource groups to indicate a coherent transmission relationship between uplink reference signal resources of an uplink reference signal resource group, and the relationship can be applied to all uplink reference signal resource groups.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal resources of the uplink reference signal resource group may be method one or two.
  • the antenna of the signal port is an antenna that can be coherently transmitted.
  • the terminal sends the uplink reference signal to the different uplink reference signal resource groups by using the same antenna.
  • Methods four, five, and six are similar to the above methods four, five, and six.
  • the base station notifies the terminal of the configuration information of the uplink reference signal resource, where the configuration information includes the mapping relationship between the uplink reference signal resource and the antenna group that can be coherently transmitted by the terminal; or
  • the configuration information includes mapping relationship between an uplink reference signal port in the uplink reference signal resource and an antenna group that can be coherently transmitted by the terminal.
  • the terminal must use an antenna that can coherently transmit an uplink reference signal in the same uplink reference signal resource.
  • the terminal considers that the uplink reference signal in the same uplink reference signal resource can be sent by using the non-coherent transmission antenna.
  • the terminal may consider that different uplink reference signal resources may be transmitted between the non-coherent transmission antennas.
  • the terminal when the terminal sends the uplink reference signal according to the uplink reference signal resource configured by the base station, the terminal determines, according to the uplink reference signal resource configuration information sent by the base station, each uplink of each uplink reference signal resource.
  • the base station receives the uplink reference signal sent by the terminal, and determines SRI (SRS resource indication information or uplink reference signal resource indication information) and or TPMI, TRI, and MCS.
  • SRI SRS resource indication information or uplink reference signal resource indication information
  • the base station receives the uplink reference signal sent by the terminal, and determines the number of layers of the uplink transmission, the precoding matrix and the uplink reference signal resource according to certain criteria.
  • the criterion can be the RSRP maximum criterion, the maximum throughput criterion, and the criteria for inter-user interference.
  • the uplink reference signal resource need not be selected.
  • each uplink reference signal resource configured by the base station for the terminal includes only one uplink reference signal port, only the SRI selection is performed, and the selection of the precoding matrix is not required.
  • the number of transmission layers is equal to the number of selected uplink reference signal resources.
  • the base station determines, according to the coherent transmission information between the uplink reference signal ports corresponding to the uplink reference signal resource configuration, the number of layers of the uplink transmission, the precoding matrix, and the uplink reference signal resource. Specifically, when selecting the precoding matrix, the base station can only select the precoding matrix based on the coherent transmission information between the corresponding uplink reference signal ports of the uplink reference signal resource configuration, and cannot select the uplink reference signal that exceeds the corresponding resource configuration based on the uplink reference signal.
  • the uplink reference signal resource configured by the base station includes four uplink reference signal ports, and the base station indicates that only the first and second uplink reference signal ports can be coherently transmitted.
  • the precoding matrix can only be selected from the precoding matrix corresponding to the total uplink reference signal port number of 4, and only the first and second uplink reference signal ports can be coherently transmitted.
  • the candidate precoding matrix includes a precoding matrix in which the first uplink reference signal port and the second uplink reference signal port are not coherently transmitted.
  • the precoding matrix corresponding to the coherent transmission of the two uplink reference signal ports means that the precoding matrix corresponds to at least one layer, and the two uplink reference signal ports have non-zero values, that is, the two uplink reference signals. Ports can simultaneously transfer data belonging to the same layer.
  • the base station separately selects a precoding matrix for each uplink reference signal resource.
  • the base station traverses a set of combinations of all possible uplink reference signal resources simultaneously transmitted, and selects an optimal precoding matrix.
  • the combination of simultaneous transmission of one uplink reference signal resource refers to simultaneous transmission of one or more uplink reference signal resources.
  • the combination of all possible uplink reference signal resources simultaneously transmitted is: ⁇ only the first uplink reference signal resource sends an uplink reference signal, and only the second uplink The reference signal resource sends an uplink reference signal, and only the third uplink reference signal resource sends an uplink reference signal, and the first and second uplink reference signal resources send an uplink reference signal, and the first and third uplink reference signal resources are sent uplink.
  • the reference signal, the second and third uplink reference signal resources transmit an uplink reference signal
  • the first, second, and third uplink reference signal resources transmit an uplink reference signal ⁇ .
  • the base station selects a precoding matrix from a codebook corresponding to the total number of uplink reference signal ports included in all uplink reference signal resources that are simultaneously transmitted, or a code corresponding to each uplink reference signal resource that the base station transmits simultaneously
  • the precoding matrix is selected, and the precoding matrix of each uplink reference signal resource is weight transformed to form an overall precoding matrix.
  • the base station traverses a set of combinations of all possible uplink reference signal resources in each uplink reference signal resource group in the uplink reference signal resource group, and selects an uplink reference signal resource group and its corresponding uplink reference.
  • the base station traverses a set of combinations of uplink reference signal resources corresponding to at most one uplink reference signal resource in each uplink reference signal resource group, and selects an optimal precoding matrix.
  • step 5 the base station sends an SRI, TPMI, TRI indication for uplink transmission to the terminal.
  • the indication information does not need to include the SRI indication information.
  • the indication information needs to include the SRI indication information.
  • the SRI indication information may indicate only one uplink reference signal resource, and may also indicate multiple uplink reference signal resources.
  • each uplink reference signal resource includes only one uplink reference signal port, only the indication of the SRI is performed, and the indication of the precoding matrix and the TRI is not required.
  • the number of uplink reference signal resources corresponding to the SRI is equal to the number of data layers.
  • SRI can be independently coded. If the method of independent coding is used, a bitmap may be adopted, that is, one bit corresponds to one uplink reference signal resource, one state of each bit indicates that the uplink reference signal resource is selected, and another state indicates that the uplink reference signal is not selected. Resources. For example, if the base station configures four uplink reference signal resources, the uplink reference signal resource indication is performed using 4 bits. The state 1 of each bit indicates that the resource is selected, and the state 0 indicates that the resource is not selected. Then, 1101 indicates that the first, second, and fourth resources are selected. SRI can also use joint coding. That is, traversing all the uplink reference signal resource selection combinations and performing joint coding.
  • the terminal can only send uplink reference signals from one uplink reference signal resource in one uplink reference signal resource group and the uplink reference signal resource in other uplink reference signal resource groups.
  • the combined number of signal resource selections is less than the combined number of combinations of all upstream reference signal resources.
  • a resource is indicated by SRI as an example, and may be extended to each of the uplink reference signal resources of multiple uplink reference signal resources, or a joint indication of multiple uplink reference signal resources.
  • the TPMI and TRI can independently encode the indications, or can be combined with the coding indications. If coded independently, the DCI contains a special area for indicating the TRI, and a special area indicates the TPMI.
  • the number of coding states of the TPMI is determined by the TRI. That is, the TPMI is indicated only after renumbering all the code words corresponding to the TRI. For example, if an uplink reference signal resource contains 4 uplink reference signal ports.
  • the number of coded bits of the TPMI is determined by TRI, for example encoding the TPMI using log(Tm) bits.
  • the number of coded bits of the TPMI is determined by the maximum number of codewords corresponding to each possible TRI.
  • the base station determines a search range of the precoding matrix according to the coherent transmission information between the uplink reference signal ports.
  • the number of coding states of the TPMI is determined by the coherent transmission information between the TRI and the upstream reference signal port.
  • the number of coding states of the TPMI is corresponding to TRI, and corresponds to the number of precoding matrices of the coherent transmission relationship between the uplink reference signal ports.
  • the number of independent coded bits of the TRI is determined by all possible values of the TRI.
  • all possible values of the TRI are determined by the number of uplink reference signal ports configured by the uplink reference signal resource.
  • all possible values of the TRI are all positive integers equal to or less than the number of uplink reference signal ports included in the uplink reference signal resource.
  • all the possible values of the TRI are determined by the number of uplink reference signal ports configured by the uplink reference signal resource and the maximum number of transport streams supported by the terminal, that is, all possible values of the TRI are less than or equal to that of the uplink reference signal resource. All positive integers of the number of upstream reference signal ports and the minimum number of maximum transport streams supported by the terminal.
  • TPMI and TRI can be combined with coding instructions.
  • the total effective coding state number is the sum of the number of all possible precoding matrices corresponding to all TRIs. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state. The total number of bits is
  • the base station determines a search range of the precoding matrix according to the coherent transmission information between the uplink reference signal ports.
  • the number of effective coding states of the TPMI and TRI joint coding is equal to the sum of the precoding matrices corresponding to the coherent transmission relations between the uplink reference signal ports corresponding to all TRI possible values. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state.
  • the total number of effective coding states may be the sum of the number of all possible precoding matrices corresponding to all TRIs corresponding to all uplink reference signal resources.
  • the total number of valid coding states may be the sum of the number of all possible precoding matrices corresponding to all TRIs corresponding to the set of combinations of all possible uplink reference signal resources simultaneously transmitted. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state.
  • the base station indicates TPMI and TRI respectively for the selected uplink reference signal resource.
  • the base station jointly indicates TPMI and TRI for the selected uplink reference signal resource.
  • the base station performs an indication of the uplink reference signal resource group.
  • the indication can also be encoded independently or jointly with other information.
  • the coding mode of the TPMI, TRI, SRI, and uplink reference signal resource groups in this step requires the base station side and the terminal side to make an advance agreement.
  • the terminal determines the TPMI and the number of data streams for uplink transmission. Specifically, the terminal receives the SRI or TPMI and TRI sent by the base station, or the TPMI, TRI, and SRI indication information. Optionally, the terminal receives the uplink reference signal resource group indication information. Based on the received information, the terminal determines the precoding matrix for the uplink transmission, the number of transmission streams, and the antenna (antenna) used. The antenna used by the terminal for uplink transmission corresponds to an antenna used for transmitting an uplink reference signal corresponding to an uplink reference signal resource indicated by the SRI.
  • a second implementation of the method shown in FIG. 1 includes:
  • Step 31 Send the coherent transmission capability information of the terminal to the base station; the coherent transmission capability information of the terminal is the antenna coherent transmission capability supported by the terminal.
  • the antenna is: a physical antenna, a transmission path, a transceiver unit TXRU, or an uplink reference signal port.
  • Step 32 Receive configuration information of an uplink reference signal resource determined by the base station according to the coherent transmission capability information of the terminal.
  • the method further includes:
  • Step 33 Receive coherent transmission relationship information between uplink reference signal ports included in the uplink reference signal resource sent by the base station.
  • the coherent transmission relationship information is the coherent transmission relationship information between the uplink reference signal ports in each uplink reference signal resource; the coherent transmission relationship information is included in the configuration information of the uplink reference signal resource, or
  • the coherent transmission relationship information is a single indicated information, and the coherent transmission relationship information is determined according to the coherent transmission capability information.
  • Step 34 The terminal receives the content indicated by the uplink transmission indication information determined by the base station according to the coherent transmission relationship and the uplink reference signal received by the base station.
  • mapping relationship between the coherent transmission relationship and the coherent transmission capability uplink reference signal port of the terminal is predefined.
  • FIG. 3 including:
  • Step 1 The UE reports the coherent transmission capability.
  • Step 2 The base station determines configuration information of the uplink reference signal resource according to the coherent transmission capability of the terminal, and sends the configuration information to the terminal.
  • Step 3 The terminal sends an uplink reference signal according to the uplink reference signal resource configured by the base station.
  • the terminal determines, according to the relationship between the uplink reference signal resource configuration information sent by the base station and the coherent transmission relationship between the pre-defined SRS uplink reference signal port and the terminal reporting capability, each uplink reference signal port of each uplink reference signal resource is determined. antenna.
  • Step 4 The base station receives the uplink reference signal sent by the terminal, and determines the TPMI, TRI, and MCS levels.
  • Step 5 The base station sends an SRI, TPMI, TRI indication for uplink transmission to the terminal.
  • Step 6 The terminal determines the TPMI and the number of data streams for uplink transmission.
  • the base station determines the configuration information of the uplink reference signal resource according to the coherent transmission capability of the terminal, and sends the configuration information to the terminal in the following manners:
  • Manner 1 The base station configures an uplink reference signal or multiple resources, and some or all of the uplink reference signal ports in each uplink reference signal resource can be coherently transmitted.
  • the base station configures one or more uplink reference signal resources, wherein the uplink reference signal port in each uplink reference signal resource can be coherently transmitted, and different uplink reference signal resources cannot be coherently transmitted.
  • the base station configures multiple uplink reference signal resources, wherein the uplink reference signal port in each uplink reference signal resource can be coherently transmitted, and some uplink reference signal resources can also be coherently transmitted.
  • the base station configures multiple uplink reference signal resources, and some uplink reference signal ports in one uplink reference signal resource may be coherently transmitted with some uplink reference signal ports in another uplink reference signal resource.
  • the base station configures multiple uplink reference signal resources, and the multiple uplink reference signal resources are divided into resource groups. All uplink reference signal resources in the same resource group have the same number of uplink reference signal ports, and any two in the same resource group.
  • the uplink reference signal resources have coherent transmission relationships between the uplink reference signal ports in the same uplink reference signal resource.
  • two uplink reference signal resources in the same resource group cannot be used for the uplink reference signal transmission at the same time.
  • the base station configures multiple uplink reference signal resources, and the multiple uplink reference signal resources are divided into resource groups, and any two resource groups include the same uplink reference signal resource configuration and an uplink reference signal of the uplink reference signal resource in the resource group. Coherent transmission relationship between ports. Optionally, two uplink reference signal resource groups cannot be used for the transmission of the uplink reference signal at the same time.
  • the base station only configures one uplink reference signal resource, and the coherent transmission relationship between the terminal and the uplink reference signal port of the uplink reference signal resource configured by the base station and the base station corresponds to the coherent transmission capability reported by the terminal.
  • the NKth coherent transmission antenna group reported by the terminal includes Mk antennas, and the first M1 uplink reference signal ports of the uplink reference signal resources configured by the base station correspond to the first antenna group reported by the terminal, ..., the uplink configured by the base station Reference signal resource To the first The uplink reference signal port corresponds to the kth antenna group reported by the terminal, and so on.
  • This approach can be extended to an uplink reference signal resource corresponding to multiple antenna groups that can be coherently transmitted.
  • the base station is configured with two uplink reference signal resources, where the first uplink reference signal resource corresponds to the first X1 antenna groups that can be coherently transmitted, and the second uplink reference signal resource corresponds to the X1+1 reported by the terminal. ⁇ X2 antenna groups that can be coherently transmitted.
  • the terminal After receiving the uplink reference signal configuration information of the base station, the terminal determines the antenna for transmitting each uplink reference signal resource in this default manner.
  • the base station configures a plurality of uplink reference signal resources, and the coherent transmission relationship between the terminal and the uplink reference signal port of the uplink reference signal resource configured by the base station by the base station corresponds to the coherent transmission capability reported by the terminal.
  • the NKth coherent transmission antenna group reported by the terminal includes Mk antennas, and the first M1 uplink reference signal ports of each uplink reference signal resource configured by the base station correspond to the first antenna group reported by the terminal, ..., base station configuration The number of each upstream reference signal resource To the first The uplink reference signal port corresponds to the kth antenna group reported by the terminal, and so on.
  • the terminal After receiving the uplink reference signal configuration information of the base station, the terminal determines the antenna for transmitting each uplink reference signal resource in this default manner.
  • the uplink reference signal resource configuration information sent by the base station includes the number of uplink reference signal ports included in each uplink reference signal resource, and the terminal determines, according to the number of uplink reference signal ports included in each uplink reference signal resource, the corresponding The antenna s, the terminal needs to ensure that the antennas s for transmitting the uplink reference signal corresponding to one uplink reference signal resource can be coherently transmitted.
  • the antennas that are used by the terminal to transmit the three uplink reference signal port groups belong to different coherent transmission antenna groups.
  • the uplink reference signals in the same uplink reference signal resource are coherent transmissions.
  • the uplink reference signal in the same uplink reference signal resource is agreed to be non-coherent transmission.
  • a third implementation of the method shown in FIG. 1 includes:
  • Step 41 directly receive configuration information of an uplink reference signal resource that is configured and sent by the base station for the terminal.
  • Step 42 Send the coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource configured by the base station to the base station to the base station.
  • the coherent transmission relationship information specifically includes maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • Step 43 Determine, according to the coherent transmission relationship between the uplink reference signal ports indicated by the received or determined configuration information of the uplink reference signal resource, a transmit antenna used for transmitting each uplink reference signal, where the antenna that can be coherently transmitted is used.
  • the uplink reference signal corresponding to the uplink reference signal port of the coherent transmission.
  • Step 44 The terminal receives the indication information sent by the base station according to the uplink reference signal sent by the terminal, where the indication information includes: a precoding matrix for uplink transmission, a number of transmission layers, and a selected uplink reference signal resource.
  • the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI; and according to the indication information, determine a precoding matrix of the uplink transmission, a number of transmission streams, and an antenna used.
  • the method includes:
  • Step 1 The base station configures an uplink reference signal resource for the terminal, and sends configuration information of the uplink reference signal resource to the terminal.
  • Step 2 The terminal sends an uplink reference signal according to the uplink reference signal resource configured by the base station.
  • the terminal further sends the coherent transmission information between the uplink reference signal ports of the uplink reference signal to the base station;
  • Step 3 The base station receives the uplink reference signal sent by the terminal, determines the precoding matrix of the uplink transmission, the number of transmission layers, and the selected uplink reference signal resource.
  • Step 4 The base station sends an SRI, TPMI, TRI indication for uplink transmission to the terminal.
  • Step 5 The terminal determines the TPMI and the number of data streams for the uplink transmission.
  • step 1 the base station configures an uplink reference signal resource for the terminal, and sends configuration information of the uplink reference signal resource to the terminal.
  • the base station configures an uplink reference signal resource for the terminal, and sends configuration information of the uplink reference signal resource to the terminal.
  • the base station configures an uplink reference signal resource for the terminal, and the uplink reference signal resource configuration information includes the number of uplink reference signal ports included in the uplink reference signal resource.
  • the number of the uplink reference signal ports is less than or equal to the maximum number of uplink reference signal ports supported by the terminal, or the number of antennas or the number of transmit antennas included in the terminal.
  • the base station configures multiple uplink reference signal resources, and the uplink reference signal resource configuration information includes the number of uplink reference signal resources and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the uplink reference signal resource configuration information includes only one uplink reference signal port number, and the number of the uplink reference signal port is applicable to all uplink reference signal resources (this manner can be used for beam management).
  • each of the uplink reference signal resources includes an uplink reference signal port number equal to a number of antennas supported by a panel supported by the terminal (this manner can be used for multiple panel transmissions. Of course, it is not necessary to limit the number of uplink reference signal ports. The number of antennas equal to the panel can also be less than the number of antennas in the panel).
  • the base station configures multiple uplink reference signal resources, and each uplink reference signal resource includes an uplink reference signal port, and the uplink reference signal resource configuration information includes the number of uplink reference signal resources.
  • the base station can only adopt this configuration when the terminal does not support coherent transmission between the antennas.
  • the base station configures multiple uplink reference signal resource groups, and the uplink reference signal resource configuration information includes the number of uplink reference signal resource groups, and the number of uplink reference signal resources and each uplink reference signal resource in each uplink reference signal resource group includes The number of upstream reference signal ports.
  • the uplink reference signal resource configuration information includes only the uplink reference signal resource group number and the uplink reference signal resource configuration information corresponding to an uplink reference signal resource group, and the uplink reference signal resource configuration information of the uplink reference signal resource group is applicable. For all upstream reference signal resource groups.
  • the terminal reports transmission capability information or antenna structure information. Specifically, at least one or more of the following information is included:
  • the terminal supports coherent transmission between antennas
  • the maximum number of antennas supported by the terminal that can be coherently transmitted is the maximum number of antennas supported by the terminal that can be coherently transmitted
  • the number of antenna panels supported by the terminal is the number of antenna panels supported by the terminal.
  • the number of antennas in each antenna panel supported by the terminal is the number of antennas in each antenna panel supported by the terminal.
  • the terminal does not support coherent transmission between the antennas.
  • the base station determines, according to the foregoing reporting information of the terminal, the number of uplink reference signal ports included in the uplink reference signal resource.
  • step 2 the terminal sends an uplink reference signal according to the uplink reference signal resource configured by the base station.
  • the terminal further sends coherent transmission information between the uplink reference signal ports to the base station.
  • the terminal receives the uplink reference signal resource configuration information sent by the base station, selects an antenna corresponding to each uplink reference signal port, and sends an uplink reference signal on the antennas.
  • the terminal may not be able to perform coherent transmission on all uplink reference signal ports. Therefore, optionally, the terminal further sends coherent transmission information between the uplink reference signal ports to the base station.
  • the coherent transmission information between the uplink reference signal ports sent by the terminal to the base station is used to indicate which uplink reference signal ports are coherently transmitted, and which uplink reference signal ports cannot be coherently transmitted.
  • Method 1 Only the coherent transmission information of the uplink reference signal port group including two or more uplink reference signal ports that can be coherently transmitted is indicated, and the coherent transmission is not performed by default between the uplink reference signal port groups.
  • the uplink reference signal resource configured by the base station includes four uplink reference signal ports, and the terminal transmits the first and second uplink reference signal ports by using two antennas that can coherently transmit, and other uplinks.
  • the antennas used by the reference signal ports cannot be coherently transmitted between each other and the antennas s corresponding to the first and second uplink reference signal ports.
  • the terminal indicates to the base station that the first uplink reference signal port and the second uplink reference signal port can be coherently transmitted.
  • the base station After receiving the indication information, the base station considers that the first and second uplink reference signal ports are uplink reference signal port groups that can be coherently transmitted, and the third uplink reference signal port is an uplink reference signal port group, and the fourth uplink The reference signal port is an uplink reference signal port group, and coherent transmission cannot be performed between these uplink reference signal port groups. Then, when determining the TPMI and the TRI after receiving the uplink reference signal resource, the base station may select the uplink precoding matrix only in the codeword corresponding to the coherent transmission relationship between the uplink reference signal ports.
  • Method 2 Indicate the coherent transmission relationship between all uplink reference signal ports. For example, the number of uplink reference signal port groups included, and the number of uplink reference signal ports included in each uplink reference signal port group. The base station and the terminal agree that the uplink reference signal ports in the same uplink reference signal port group can be coherently transmitted, and the uplink reference signal ports of different uplink reference signal port groups are not coherently transmitted.
  • the precoding matrix is selected from the codewords of the coherent transmission relationship between the reference signal ports.
  • Method 3 Assume that the uplink reference signal port that can be coherently transmitted constitutes an uplink reference signal port group, and the base station and the terminal appoint the terminal to map the uplink reference signal port group including the uplink reference signal port that can be coherently transmitted to a smaller uplink reference. On the signal port number, the uplink reference signal port group containing fewer uplink reference signal ports is mapped to the larger uplink reference signal port number. In this way, when the base station configures an uplink reference signal resource, the uplink reference signal port can be used to transmit information coherently with less bits.
  • the coherent transmission relationship between the uplink reference signal ports includes only the following types: (1, 1, 1, 1), (2, 1, 1) ), (2, 2), (3, 1), (4), then 3 bits is sufficient, where (X1, X2, X3, X4) represents that there are 4 uplink reference signal port groups, and the first group contains X1 uplink reference signal ports, the second group contains X2 uplink reference signal ports, ..., the uplink reference signal ports in the group are coherently transmitted, and the groups are non-coherently transmitted. If the limit is based on the transmission capacity of the terminal, the number of bits required is smaller. For example, if the terminal supports the coherent transmission of up to two uplink reference signal ports, it only contains (1,1,1,1), (2,1,1), (2,2), and the 2-bit indication is enough. .
  • Method 4 The base station configures multiple uplink reference signal resources, and the terminal indicates a coherent transmission relationship between the uplink reference signal ports of an uplink reference signal resource, and the relationship can be applied to all uplink reference signal resources.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource may be methods one to three.
  • Method 5 The base station is configured with multiple uplink reference signal resource groups, and each uplink reference signal resource group includes one or more uplink reference signal resources, indicating a coherent transmission relationship between uplink reference signal ports of an uplink reference signal resource, and the relationship It can be applied to all uplink reference signal resources in the uplink reference signal resource group where the uplink reference signal resource is located.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource may be method one or two or three.
  • the base station is configured with multiple uplink reference signal resource groups, and the terminal indicates a coherent transmission relationship between the uplink reference signal ports in an uplink reference signal resource group, and the relationship can be applied to all uplink reference signal resource groups.
  • the specific indication method of the coherent transmission relationship between the uplink reference signal ports of the uplink reference signal resource group may be method one or two or three.
  • Method seven Contain at least one or more of the following information:
  • All uplink reference signal ports of an uplink reference signal resource may be coherently transmitted
  • the uplink reference signal ports of an uplink reference signal resource cannot be coherently transmitted
  • the base station considers that all uplink reference signal ports in an uplink reference signal resource can be coherently transmitted.
  • the base station considers that all uplink reference signal ports cannot be coherently transmitted.
  • the base station considers that different uplink reference signal resources cannot be coherently transmitted.
  • step 3 the base station receives the uplink reference signal sent by the terminal, determines the precoding matrix of the uplink transmission, the number of transmission layers, and the selected uplink reference signal resource.
  • the base station receives the uplink reference signal sent by the terminal, and determines the number of layers of the uplink transmission, the precoding matrix and the uplink reference signal resource according to certain criteria.
  • the criterion can be the RSRP maximum criterion, the maximum throughput criterion, and the criteria for inter-user interference.
  • the uplink reference signal resource need not be selected.
  • each uplink reference signal resource configured by the base station for the terminal includes only one uplink reference signal port, only the SRI selection is performed, and the selection of the precoding matrix is not required.
  • the number of transmission layers is equal to the number of selected uplink reference signal resources.
  • the base station receives the coherent transmission information between the uplink reference signal ports sent by the terminal. And determining, according to the coherent transmission information, the number of layers of the uplink transmission, the precoding matrix, and the uplink reference signal resource. Specifically, when selecting a precoding matrix, the base station can only select a precoding matrix based on coherent transmission information between uplink reference signal ports sent by the terminal, and cannot select precoding beyond a coherent transmission range between uplink reference signal ports sent by the terminal. matrix.
  • the uplink reference signal resource configured by the base station includes four uplink reference signal ports, and the terminal indicates that only the first and second uplink reference signal ports can be coherently transmitted.
  • the precoding matrix can only be selected from the precoding matrix corresponding to the total uplink reference signal port number of 4, and only the first and second uplink reference signal ports can be coherently transmitted.
  • the candidate precoding matrix includes a precoding matrix in which the first uplink reference signal port and the second uplink reference signal port are not coherently transmitted.
  • the precoding matrix corresponding to the coherent transmission of the two uplink reference signal ports means that the precoding matrix corresponds to at least one layer, and the two uplink reference signal ports have non-zero values, that is, the two uplink reference signals. Ports can simultaneously transfer data belonging to the same layer.
  • the base station separately selects a precoding matrix for each uplink reference signal resource.
  • the base station traverses a set of combinations of all possible uplink reference signal resources simultaneously transmitted, and selects an optimal precoding matrix.
  • the combination of simultaneous transmission of one uplink reference signal resource refers to simultaneous transmission of one or more uplink reference signal resources.
  • the combination of all possible uplink reference signal resources simultaneously transmitted is: ⁇ only the first uplink reference signal resource sends an uplink reference signal, and only the second uplink The reference signal resource sends an uplink reference signal, and only the third uplink reference signal resource sends an uplink reference signal, and the first and second uplink reference signal resources send an uplink reference signal, and the first and third uplink reference signal resources are sent uplink.
  • the reference signal, the second and third uplink reference signal resources transmit an uplink reference signal
  • the first, second, and third uplink reference signal resources transmit an uplink reference signal ⁇ .
  • the base station selects a precoding matrix from a codebook corresponding to the total number of uplink reference signal ports included in all uplink reference signal resources that are simultaneously transmitted, or a code corresponding to each uplink reference signal resource that the base station transmits simultaneously
  • the precoding matrix is selected, and the precoding matrix of each uplink reference signal resource is weight transformed to form an overall precoding matrix.
  • the base station traverses a set of combinations of all possible uplink reference signal resources in each uplink reference signal resource group in the uplink reference signal resource group, and selects an uplink reference signal resource group and its corresponding uplink reference.
  • the base station traverses a set of combinations of uplink reference signal resources corresponding to at most one uplink reference signal resource in each uplink reference signal resource group, and selects an optimal precoding matrix.
  • step 4 the base station sends an SRI, TPMI, and TRI indication for uplink transmission to the terminal.
  • the indication information does not need to include the SRI indication information.
  • the indication information needs to include the SRI indication information.
  • the SRI indication information may indicate only one uplink reference signal resource, and may also indicate multiple uplink reference signal resources.
  • each uplink reference signal resource includes only one uplink reference signal port, only the indication of the SRI is performed, and the indication of the precoding matrix and the TRI is not required.
  • the number of uplink reference signal resources corresponding to the SRI is equal to the number of data layers.
  • SRI can be independently coded. If the method of independent coding is used, a bitmap may be adopted, that is, one bit corresponds to one uplink reference signal resource, one state of each bit indicates that the uplink reference signal resource is selected, and another state indicates that the uplink reference signal is not selected. Resources. For example, if the base station configures four uplink reference signal resources, the uplink reference signal resource indication is performed using 4 bits. The state 1 of each bit indicates that the resource is selected, and the state 0 indicates that the resource is not selected. Then, 1101 indicates that the first, second, and fourth resources are selected. SRI can also use joint coding. That is, traversing all the uplink reference signal resource selection combinations and performing joint coding.
  • the terminal can only send uplink reference signals from one uplink reference signal resource in one uplink reference signal resource group and the uplink reference signal resource in other uplink reference signal resource groups.
  • the combined number of signal resource selections is less than the combined number of combinations of all upstream reference signal resources.
  • a resource is indicated by SRI as an example, and may be extended to each of the uplink reference signal resources of multiple uplink reference signal resources, or a joint indication of multiple uplink reference signal resources.
  • the TPMI and TRI can independently encode the indications, or can be combined with the coding indications. If coded independently, the DCI contains a special area for indicating the TRI, and a special area indicates the TPMI.
  • the number of coding states of the TPMI is determined by the TRI. That is, the TPMI is indicated only after renumbering all the code words corresponding to the TRI. For example, if an uplink reference signal resource contains 4 uplink reference signal ports.
  • the number of coded bits of the TPMI is determined by TRI, for example encoding the TPMI using log(Tm) bits.
  • the number of coded bits of the TPMI is determined by the maximum number of codewords corresponding to each possible TRI.
  • the base station determines, according to the coherent transmission information between the uplink reference signal ports sent by the terminal, the search range of the precoding matrix.
  • the number of coding states of the TPMI is determined by the coherent transmission information between the TRI and the uplink reference signal port transmitted by the terminal.
  • the number of coding states of the TPMI is corresponding to the TRI, and corresponds to the number of precoding matrices of the coherent transmission relationship between the uplink reference signal ports transmitted by the terminal.
  • One way is that the number of coded bits of the TPMI is determined by the coherent transmission information between the TRI and the uplink reference signal port sent by the terminal.
  • the precoding matrix corresponding to the coherent transmission relationship between the uplink reference signal ports transmitted by the terminal is used.
  • the TPMI is encoded using log(Sm) bits.
  • the number of independent coded bits of the TRI is determined by all possible values of the TRI.
  • all possible values of the TRI are determined by the number of uplink reference signal ports configured by the uplink reference signal resource.
  • all possible values of the TRI are all positive integers equal to or less than the number of uplink reference signal ports included in the uplink reference signal resource.
  • all the possible values of the TRI are determined by the number of uplink reference signal ports configured by the uplink reference signal resource and the maximum number of transport streams supported by the terminal, that is, all possible values of the TRI are less than or equal to that of the uplink reference signal resource. All positive integers of the number of upstream reference signal ports and the minimum number of maximum transport streams supported by the terminal.
  • TPMI and TRI can be combined with coding instructions.
  • the total effective coding state number is the sum of the number of all possible precoding matrices corresponding to all TRIs. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state. The total number of bits is
  • the base station determines, according to the coherent transmission information between the uplink reference signal ports sent by the terminal, the search range of the precoding matrix.
  • the number of effective coding states jointly encoded by the TPMI and the TRI is equal to the sum of the precoding matrices corresponding to the coherent transmission relations between the uplink reference signal ports transmitted by the terminals corresponding to all TRI possible values. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state.
  • the total number of effective coding states may be the sum of the number of all possible precoding matrices corresponding to all TRIs corresponding to all uplink reference signal resources.
  • the total number of valid coding states may be the sum of the number of all possible precoding matrices corresponding to all TRIs corresponding to the set of combinations of all possible uplink reference signal resources simultaneously transmitted. If the number of coded bits corresponds to more than the number of valid coding states, the redundant state is the reserved state.
  • the base station indicates TPMI and TRI respectively for the selected uplink reference signal resource.
  • the base station jointly indicates TPMI and TRI for the selected uplink reference signal resource.
  • the base station performs an indication of the uplink reference signal resource group.
  • the indication can also be encoded independently or jointly with other information.
  • the coding mode of the TPMI, TRI, SRI, and uplink reference signal resource groups in this step requires the base station side and the terminal side to make an advance agreement.
  • step 5 the terminal determines the TPMI and the number of data streams for uplink transmission.
  • the terminal receives the SRI or TPMI and TRI, or the TPMI, TRI and SRI indication information sent by the base station, and optionally, the uplink reference signal resource group indication information, determines the precoding matrix of the uplink transmission, the number of transmission streams, and the antenna used.
  • the antenna used for the uplink transmission uses the uplink reference signal port corresponding to the uplink reference signal resource indicated by the base station, and the precoding matrix of each uplink reference signal port is determined according to the TPMI.
  • a transmission and reception scheme for the interaction information of the terminal and the base station with respect to the coherent transmission capability of the transmission path is provided, and an interaction scheme of signaling, such as resource configuration and uplink access grant, based on the interaction scheme is provided.
  • the base station and the terminal may have the same assumption that the uplink reference signal resource uplink reference signal port has a coherent transmission relationship, thereby ensuring uplink transmission performance.
  • some embodiments of the present disclosure further provide a configuration method for uplink transmission, including:
  • Step 51 Configure configuration information of the uplink reference signal resource for the terminal.
  • Step 52 The uplink reference signal sent by the receiving terminal according to the configuration information configured by the base station;
  • Step 53 Send, to the terminal, indication information that is determined by the base station for uplink transmission.
  • the method includes: receiving coherent transmission capability information of the terminal sent by the terminal.
  • step 51 includes:
  • the configuration information of the uplink reference signal resource is determined according to the coherent transmission capability information reported by the terminal.
  • the method further includes: transmitting, to the terminal, coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource.
  • the coherent transmission relationship information is coherent transmission relationship information between uplink reference signal ports in each uplink reference signal resource.
  • the coherent transmission relationship information is included in the configuration information of the uplink reference signal resource, or the coherent transmission relationship information is a separately indicated information.
  • the coherent transmission relationship information is determined according to the coherent transmission capability information.
  • the indication information of the uplink transmission and the content of the indication thereof are determined according to the coherent transmission relationship and an uplink reference signal received by the base station.
  • the coherent transmission capability information of the terminal is an antenna coherent transmission capability supported by the terminal.
  • the antenna is: a physical antenna, a transmission path, a transceiver unit TXRU, or an uplink reference signal port.
  • the coherent transmission capability information of the terminal includes antenna grouping information, wherein antennas in each antenna group can be coherently transmitted, and antennas in different antenna groups cannot be coherently transmitted.
  • the coherent transmission capability information of the terminal further includes total antenna number information.
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the coherent transmission relationship information specifically includes the maximum or minimum uplink reference signal port number information that can be coherently transmitted.
  • the coherent transmission relationship information includes information that at least part of the ports of the uplink reference signal in the same uplink reference signal resource can be coherently transmitted or information that all ports cannot be coherently transmitted.
  • the grouping information of the uplink reference signal port in the coherent transmission relationship information specifically includes:
  • the configuration information of the uplink reference signal resource includes an uplink reference signal resource or a plurality of uplink reference signal resources, at least one of the uplink reference signal resources may only be partially coherently transmitted;
  • the configuration information of the uplink reference signal resource includes multiple uplink reference signal resources, all uplink reference signal ports in each uplink reference signal resource may be coherently transmitted, and different uplink reference signal resources may not be coherently transmitted; or
  • the uplink reference signal port in each uplink reference signal resource may be coherently transmitted, and some uplink reference signal resources may be coherently transmitted;
  • a part of the uplink reference signal port in one uplink reference signal resource may be coherently transmitted with a part of the uplink reference signal port in another uplink reference signal resource.
  • the multiple uplink reference signal resources are divided into resource groups, and all uplink reference signal resources in the same resource group have the same uplink reference signal.
  • the multiple uplink reference signal resources are divided into resource groups, and any two resource groups include the same number of uplink reference signals and resources in the resource group.
  • the configuration information includes: the number of uplink reference signal resources and the number of uplink reference signal ports included in each uplink reference signal resource.
  • the coherent transmission relationship information includes:
  • the coherent transmission relationship information is a coherent transmission relationship between uplink reference signal ports of one uplink reference signal resource, and the relationship is applied to all Uplink reference signal resources;
  • each uplink reference signal resource group includes one or more uplink reference signal resources, and the coherent transmission relationship information indicates an uplink reference signal resource.
  • the coherent transmission relationship between the uplink reference signal ports, the relationship may be applied to all uplink reference signal resources in the uplink reference signal resource group where the uplink reference signal resource is located; or
  • the coherent transmission relationship information indicates a coherent transmission relationship between uplink reference signal ports in an uplink reference signal resource group, and the relationship may be applied. To all upstream reference signal resource groups.
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal port and the antenna group;
  • the coherent transmission relationship information is a mapping relationship between the uplink reference signal resource and the antenna group.
  • the method further includes:
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the step 51 may further include: directly sending, to the terminal, configuration information of an uplink reference signal resource configured for the terminal.
  • the method further includes: receiving coherent transmission information between the uplink reference signals sent by the terminal.
  • the coherent transmission relationship information specifically includes the grouping information of the uplink reference signal port, where the uplink reference signal port in each uplink reference signal port group can be coherently transmitted, and the uplink reference signal port in the different uplink reference signal port group is not Perform coherent transmission.
  • the indication information of the uplink transmission includes SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI.
  • the indication information of the uplink transmission is determined according to the coherent transmission relationship.
  • the method is a method on the base station side, and corresponds to the method on the terminal side of FIG. 1 to FIG. 4 above, and all implementations related to the base station in the foregoing embodiments shown in FIG. 1 to FIG. 4 are applicable to the embodiment, and can also achieve the same. Technical effect.
  • Some embodiments of the present disclosure also provide a terminal, including:
  • An acquiring module configured to acquire configuration information of an uplink reference signal resource configured by the base station for the terminal;
  • a sending module configured to send an uplink reference signal according to the configuration information of the uplink reference signal resource
  • a receiving module configured to receive, by the terminal, indication information of an uplink transmission determined by the base station
  • the sending module is further configured to perform uplink transmission according to the indication information.
  • the sending module is further configured to send the coherent transmission capability information of the terminal to the base station.
  • the receiving module is specifically configured to receive configuration information of an uplink reference signal resource that is determined by the base station according to the coherent transmission capability information of the terminal.
  • the receiving module is further configured to receive coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource sent by the base station.
  • the sending module is specifically configured to determine, according to the configuration information of the uplink reference signal resource and the coherent transmission relationship information, a transmitting antenna corresponding to each uplink reference signal port included in the configuration information of the uplink reference signal resource, where An uplink reference signal is transmitted on the antenna.
  • mapping relationship between the coherent transmission relationship between the uplink reference signal ports and the coherent transmission capability of the terminal included in the uplink reference signal resource configured by the base station is predefined.
  • the sending module is further configured to determine, according to the coherent transmission capability of the terminal and the configuration information of the uplink reference signal resource, a coherent transmission relationship between the uplink reference signal ports included in the uplink reference signal resource configured by the base station, where the coherent transmission is performed.
  • the mapping relationship between the relationship and the coherent transmission capability of the terminal is predefined;
  • the uplink reference signal including: determining, according to the coherent transmission relationship, an antenna used for transmitting the uplink reference signal, where the antenna capable of coherent transmission is used to send the uplink on the uplink reference signal port that can be coherently transmitted. Reference signal.
  • the sending module is further configured to send, to the base station, coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource configured by the base station.
  • the sending module is further configured to determine, according to the coherent transmission relationship, a transmitting antenna used for transmitting each uplink reference signal, where the uplink reference signal is sent on an uplink reference signal port that can be coherently transmitted using an antenna that can be coherently transmitted.
  • the receiving module is specifically configured to: the indication information of the uplink transmission includes an SRI, or TPMI and TRI, or indication information of TPMI, TRI, and SRI; and determining, according to the indication information, a precoding matrix and transmission of the uplink transmission. Number of streams and antennas used; or
  • the terminal implements the method shown in FIG. 1 to FIG. 4 above, and the embodiments of the method shown in FIG. 1-4 are all applicable to the embodiment of the terminal, and the same technical effects can be achieved.
  • Some embodiments of the present disclosure also provide a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor for reading in a memory
  • the program that controls the transceiver performs the following process:
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • Some embodiments of the present disclosure also provide a base station, including:
  • a configuration module configured to configure configuration information of an uplink reference signal resource for the terminal
  • a receiving module configured to receive, by the terminal, an uplink reference signal that is sent according to configuration information configured by the base station;
  • a sending module configured to send, to the terminal, indication information that is determined by the base station for uplink transmission.
  • the receiving module is further configured to receive coherent transmission capability information of the terminal sent by the terminal.
  • the configuration module is specifically configured to determine configuration information of the uplink reference signal resource according to the coherent transmission capability information reported by the terminal.
  • the sending module is further configured to send, to the terminal, coherent transmission relationship information between the uplink reference signal ports included in the uplink reference signal resource.
  • mapping relationship between the coherent transmission relationship and the uplink reference signal port of the coherent transmission capability of the terminal is predefined.
  • the sending module is further configured to directly send, to the terminal, configuration information of an uplink reference signal resource configured for the terminal.
  • the receiving module is further configured to receive coherent transmission information between uplink reference signals sent by the terminal.
  • the sending module is specifically configured to send, to the terminal, indication information for uplink transmission determined according to the uplink reference signal, where the indication information includes: an uplink scheduling request indication SRI, or TPMI and TRI, or TPMI, TRI, and SRI Instructions.
  • the sending module is further configured to determine indication information of the uplink transmission according to the coherent transmission relationship.
  • the embodiment of the base station can also implement the implementation process of the base station involved in the foregoing methods in FIG. 1 to FIG. 4, and the implementation manners of the foregoing methods shown in FIG. 1 to FIG. 4 are applicable to the embodiment of the base station, and can also achieve the same. Technical effect.
  • Some embodiments of the present disclosure also provide a base station, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor for reading in a memory
  • the program that controls the transceiver performs the following process:
  • the uplink reference signal sent by the receiving terminal according to the configuration information configured by the base station;
  • the indication information determined by the base station for uplink transmission is sent to the terminal.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of memory represented by the memory.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • Some embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the method as described above.
  • one antenna of the terminal corresponds to one uplink reference signal port.
  • the base station determines a coherent transmission relationship between the uplink reference signal ports according to the coherent transmission capability information of the terminal.
  • the base station determines the configuration of the uplink reference signal resource according to the coherent transmission capability information of the terminal.
  • a coherent transmission relationship between the coherent transmission capability information of the terminal and the uplink reference signal port is pre-agreed.
  • the foregoing terminal may be a terminal in any embodiment of the method in the embodiment of the disclosure, and any implementation manner of the terminal in the method embodiment in the embodiment of the disclosure may be used in this embodiment.
  • the above-mentioned terminals are implemented, and the same beneficial effects are achieved, and details are not described herein again.
  • the device involved includes a sending device (ie, a base station) and a receiving device (ie, a terminal), and the transmitting device and the receiving device accessing the sending device can perform downlink transmission and uplink receiving.
  • a sending device ie, a base station
  • a receiving device ie, a terminal
  • the base station may be a base station or other type of transmission point device in the related art device, and the terminal may be a user equipment. Of course, it is not limited to the above two types of devices.
  • the base station may also be a terminal that can perform configuration operations on other terminals.
  • a base station can also be considered to contain multiple network sites.
  • the network node may include only a radio frequency (such as a Radio Radio Unit (RRU)) or a baseband and radio frequency (such as an active antenna).
  • RRU Radio Radio Unit
  • the network node may only include a baseband (such as a baseband unit (BBU)); it may also not include any digital/RF functions of the air interface layer, and is only responsible for high-level signal processing, and the baseband processing of the air interface layer is placed on the active layer. antenna.
  • RRU Radio Radio Unit
  • BBU baseband unit
  • the terminal may also be referred to as a User Equipment (UE), or may be called a Terminal, a Mobile Station (MS), a Mobile Terminal, etc., and the terminal may be connected to the Radio Access Network (Radio).
  • the Access Network (RAN) communicates with one or more core networks.
  • the terminal may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., for example, the terminal may also be portable, pocket-sized. , handheld, computer built-in or in-vehicle mobile devices that exchange voice and/or data with a wireless access network.
  • the terminal in the embodiment of the present disclosure may also be a Device to Device (D2D) terminal or a Machine to Machine (M2M) terminal. Network devices and terminals are not specifically limited in the embodiments of the present disclosure.
  • the precoding matrix involved may be a precoding matrix or a vector, or may be multiple precoding vectors, or may be one beam or multiple beams, in the present disclosure. In some embodiments, there are no restrictions on its specific several beams and precoding.
  • the disclosed method and apparatus may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

本公开提供一种上行传输、配置方法、终端及基站,其中终端侧的方法包括:获取基站为终端配置的上行参考信号资源的配置信息;根据所述上行参考信号资源的配置信息发送上行参考信号;终端接收基站确定的上行传输的指示信息;根据所述指示信息进行上行传输。

Description

一种上行传输、配置方法、终端及基站
相关申请的交叉引用
本申请主张在2017年9月30日在中国提交的中国专利申请号No.201710923315.7的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域,特别是指一种上行传输、配置方法、终端及基站。
背景技术
在LTE Rel-8中,最多可以支持4层的MIMO传输。
Rel-9重点对MU-MIMO技术进行了增强,TM(Transmission Mode)-8的MU-MIMO(Multi-User MIMO)传输中最多可以支持4个下行数据层。
Rel-10则引入支持8上行参考信号端口进一步提高了信道状态信息的空间分辨率,并进一步将SU-MIMO(Single-User MIMO)的传输能力扩展至最多8个数据层。
Rel-13和Rel-14引入了FD-MIMO技术支持到32端口,实现全维度以及垂直方向的波束赋形。
为了进一步提升MIMO技术,移动通信系统中引入大规模天线技术。对于基站,全数字化的大规模天线可以有高达128/256/512个天线单元,以及高达128/256/512个收发单元,每个天线单元连接一个收发单元。通过发送高达128/256/512个上行参考信号端口的导频信号,使得终端测量信道状态信息并反馈。
对于终端,也可以配置高达32/64个天线单元的天线阵列。通过基站和终端两侧的波束赋形,获得巨大的波束赋形增益,以弥补路径损耗带来的信号衰减。尤其是在高频段通信,例如30GHz频点上,路径损耗使得无线信号的覆盖范围极其有限。通过大规模天线技术,可以将无线信号的覆盖范围扩大到可以实用的范围内。
在相关技术的通信系统中,基于码本的上行传输是一种常用的上行传输技术。
对于基于码本的上行传输方案来说,终端(UE)向基站(BS)发送上行参考信号(例如探测参考信号SRS)。
基站对上行参考信号进行测量后确定终端使用的TPMI(发射预编码矩阵指示),TRI(发送秩指示)和MCS(调制与编码策略)等信息,进行UE的上行调度,并通过DCI(下行控制信息)将上行调度相关的信息如TRI、TPMI和MCS指示给UE。
UE使用基站指示的TRI和TPMI确定上行数据(或信号)传输所使用的预编码/波束赋形,并使用该预编码/波束赋形进行数据传输。
基站确定终端使用的TPMI和TRI信息,以及终端根据TPMI和TRI指示确定数据传输的预编码/波束赋形,都需要基于码本确定。
在实际系统中,有些UE受限于硬件的实现,虽然可以支持多个发送通路,但不同的通路之间由于相位无法校准等原因,不能在所有的发送通路上进行相干传输(coherent transmission),即无法在这些发送通路上同时传输多层(layer,or stream)的信号。
如果基站基于终端所有的发送通路都可以进行相干传输进行上行调度,将导致调度时估计的性能与实际传输的性能不符,从而恶化上行传输的性能。
因此,终端需要上报其发送通路的相干传输能力,以保证基站侧和终端侧对于发送通路具有相同的假设,确保上行传输的性能。
在相关技术的通信系统中,没有终端与基站关于发送通路的相干传输能力的交互信息,也没有基站基于终端的发送通路的相干传输能力的上行调度方案和上行接入准许方案。
发明内容
本公开提供了一种上行传输、配置方法、终端及基站。提出了关于终端与基站关于发送通路的相干传输能力的交互信息的发送接收方案,以及基于该交互方案的资源配置、上行接入准许等信令的交互方案,保证终端的上行传输性能。
为解决上述技术问题,本公开提供如下方案:
一种上行传输方法,包括:
获取基站为终端配置的上行参考信号资源的配置信息;
根据所述上行参考信号资源的配置信息发送上行参考信号;
接收基站确定的上行传输的指示信息;
根据所述指示信息进行上行传输。
其中,根据所述上行参考信号资源的配置信息发送上行参考信号之前,包括:向基站发送终端的相干传输能力信息。
其中,获取基站为终端配置的上行参考信号资源的配置信息的步骤包括:
接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
其中,根据所述上行参考信号资源的配置信息发送上行参考信号之前还包括:接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,根据所述上行参考信号资源的配置信息发送上行参考信号,包括:
根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
其中,所述相干传输关系信息根据所述相干传输能力信息确定。
其中,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
其中,终端的相干传输能力信息为终端支持的天线相干传输能力。
其中,所述天线可以为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
其中,所述基站为终端配置的上行参考信号资源所包含的上行参考信号 端口间的相干传输关系与终端的相干传输能力之间的映射关系是预定义的。
其中,终端的相干传输能力信息包括天线分组信息,其中每个天线组内的天线可以相干传输,不同天线组内的天线不能相干传输。
其中,所述天线分组信息中包含天线组数目信息和每个天线组包含的天线数的信息。
其中,终端的相干传输能力信息还包括总的天线数目信息。
其中,终端的相干传输能力信息包括终端至少部分天线可以相干传输的信息或终端所有天线都不能相干传输的信息。
其中,终端的相干传输能力信息包括终端最大或最小可以相干传输的天线数信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
其中,所述相干传输关系信息中上行参考信号端口的分组信息具体包括:
1)所述上行参考信号资源的配置信息包含一个上行参考信号资源或多个上行参考信号资源时,至少一个上行参考信号资源只有部分上行参考信号端口可以相干传输;或者
2)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的所有上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输;或者
3)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间可以相干传输;或者
4)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号 资源内的部分上行参考信号端口进行相干传输;或者
5)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内的任意两个上行参考信号资源不能同时用于上行参考信号的发送,且同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系;或者
6)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,该多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号数及资源组内的上行参考信号端口间的相干传输关系,且不能同时用于上行参考信号的发送。
其中,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端口数。
其中,所述相干传输关系信息包括:
11)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述相干传输关系信息为其中一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系应用到所有的上行参考信号资源;或者
15)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,每个上行参考信号资源组包括一个或多个上行参考信号资源,所述相干传输关系信息指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源;或者
16)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,所述相干传输关系信息指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。
其中,所述相干传输关系信息为所述上行参考信号端口与所述天线组之间的映射关系;或者,
所述相干传输关系信息为所述上行参考信号资源与所述天线组之间的映射关系。
其中,在根据所述上行参考信号资源的配置信息发送上行参考信号之前,还包括:
根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;
根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
其中,接收基站确定的上行传输的指示信息之前,还包括:
向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
其中,发送上行参考信号,还包括:
根据所述相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、 TRI和SRI的指示信息;
根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:根据所述指示信息和所述相干传输关系,确定上行传输的预编码矩阵、传输流数和使用的天线。
本公开还提供一种上行传输的配置方法,包括:
为终端配置上行参考信号资源的配置信息;
接收终端根据基站配置的配置信息发送的上行参考信号;
向终端发送基站确定的用于上行传输的指示信息。
其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,包括:
接收终端发送的终端的相干传输能力信息。
其中,为终端配置上行参考信号资源的配置信息的步骤包括:
根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
其中,所述相干传输关系信息根据所述相干传输能力信息确定。
其中,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
其中,终端的相干传输能力信息为终端支持的天线相干传输能力。
其中,所述天线为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
其中,终端的相干传输能力信息包括天线分组信息,其中每个天线组内 的天线可以相干传输,不同天线组内的天线不能相干传输。
其中,终端的相干传输能力信息还包括总的天线数目信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
其中,所述相干传输关系信息中上行参考信号端口的分组信息具体包括:
1)所述上行参考信号资源的配置信息包含一个上行参考信号资源或多个上行参考信号资源时,其中至少一个上行参考信号资源只有部分上行参考信号端口可以相干传输;或者
2)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的所有上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输;或者
3)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间可以相干传输;或者
4)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号资源内的部分上行参考信号端口进行相干传输;或者
5)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内的任意两个上行参考信号资源不能同时用于上行参考信号的发送,且同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系;或者
6)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,该 多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号数及资源组内的上行参考信号端口间的相干传输关系,且不能同时用于上行参考信号的发送。
其中,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端口数。
其中,所述相干传输关系信息包括:
11)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述相干传输关系信息为其中一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系应用到所有的上行参考信号资源;或者
15)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,每个上行参考信号资源组包括一个或多个上行参考信号资源,所述相干传输关系信息指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源;或者
16)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,所述相干传输关系信息指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。
其中,所述相干传输关系信息为所述上行参考信号端口与所述天线组之间的映射关系;或者,
所述相干传输关系信息为所述上行参考信号资源与所述天线组之间的映射关系。
其中,在接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,为终端配置上行参考信号资源的配置信息的步骤包括:
直接向终端发送为终端配置的上行参考信号资源的配置信息。
其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
接收终端发送的上行参考信号间的相干传输信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,向终端发送基站确定的上行参考信号资源的指示信息的步骤包括:
所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
其中,根据所述相干传输关系确定上行传输的指示信息。
本公开还提供一种终端,包括:
获取模块,用于获取基站为终端配置的上行参考信号资源的配置信息;
发送模块,用于根据所述上行参考信号资源的配置信息发送上行参考信号;
接收模块,用于终端接收基站确定的上行传输的指示信息;
所述发送模块,还用于根据所述指示信息进行上行传输。
其中,所述发送模块还用于向基站发送终端的相干传输能力信息。
其中,所述接收模块具体用于接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
其中,所述接收模块还用于接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述发送模块具体用于根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
其中,所述基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系与终端的相干传输能力之间的映射关系是预定义的。
其中,所述发送模块还用于根据终端的相干传输能力及上行参考信号资 源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,所述发送模块还用于向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。
其中,所述发送模块还用于根据所述相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,所述接收模块具体用于:
所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线;或者
根据所述指示信息和所述相干传输关系,确定上行传输的预编码矩阵、传输流数和使用的天线。
本公开还提供一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器用于读取存储器中的程序,控制收发机执行下列过程:
获取基站为终端配置的上行参考信号资源的配置信息;
根据所述上行参考信号资源的配置信息发送上行参考信号;
终端接收基站确定的上行传输的指示信息;
根据所述指示信息进行上行传输。
本公开还提供一种基站,包括:
配置模块,用于为终端配置上行参考信号资源的配置信息;
接收模块,用于接收终端根据基站配置的配置信息发送的上行参考信号;
发送模块,用于向终端发送基站确定的用于上行传输的指示信息。
其中,所述接收模块还用于接收终端发送的终端的相干传输能力信息。
其中,所述配置模块具体用于根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
其中,所述发送模块还用于向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系与终端的相干传输能力上行参考信号端口之间的映射关系是预定义的。
其中,所述发送模块还用于直接向终端发送为终端配置的上行参考信号资源的配置信息。
其中,所述接收模块还用于接收终端发送的上行参考信号间的相干传输信息。
其中,所述发送模块具体用于向终端发送根据上行参考信号确定的用于上行传输的指示信息,所述指示信息中包括:上行调度请求指示SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
其中,所述发送模块还用于根据所述相干传输关系确定上行传输的指示信息。
本公开还提供一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器用于读取存储器中的程序,控制收发机执行下列过程:
为终端配置上行参考信号资源的配置信息;
接收终端根据基站配置的配置信息发送的上行参考信号;
向终端发送基站确定的用于上行传输的指示信息。
本公开还提供一种计算机可读存储介质,其上存储有计算机程序,其中,该程序被处理器执行时实现如上所述的方法。
本公开的上述方案至少包括以下有益效果:
本公开的上述方案,通过获取基站为终端配置的上行参考信号资源的配置信息;根据所述上行参考信号资源的配置信息发送上行参考信号;终端接收基站确定的上行传输的指示信息;根据所述指示信息进行上行传输。从而实现上行参考信号端口间的相干传输(coherent transmission)关系的交互;确保终端上行传输性能。
附图说明
图1为本公开的一些实施例的终端侧的上行传输方法的流程图;
图2为图1所示方法的第一实现方案流程交互示意图;
图3为图1所示方法的第二实现方案流程交互示意图;
图4为图1所示方法的第三实现方案流程交互示意图;
图5为本公开的一些实施例基站侧的上行传输的配置方法的流程图;
图6为本公开的一些实施例中,终端或者基站的硬件设备结构示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例,然而应当理解,可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反,提供这些实施例是为了能够更透彻地理解本公开,并且能够将本公开的范围完整的传达给本领域的技术人员。
本公开的一些实施例中的上行参考信号是指具有上行信道质量测量,和/或波束测量,和/或时频测量等功能的上行参考信号,可选地,为SRS(探测参考信号,Sounding Reference Signal)。
如图1所示,本公开的一些实施例提供一种上行传输方法,包括:
步骤11,获取基站为终端配置的上行参考信号资源的配置信息;
步骤12,根据所述上行参考信号资源的配置信息发送上行参考信号;
步骤13,终端接收基站确定的上行传输的指示信息;
步骤14,根据所述指示信息进行上行传输。
具体的,该方法的第一种实现方案,一种上行传输方法包括:
步骤21,向基站发送终端的相干传输能力信息;终端的相干传输能力信息为终端支持的天线相干传输能力。所述天线可以为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
步骤22,接收基站确定的上行参考信号资源的配置信息。
可选地,基站根据终端发送的相干传输能力信息确定上行参考信号资源的配置及配置信息。
根据上行参考信号资源的配置信息发送上行参考信号之前还包括:
步骤20,接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息可以为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。所述相干传输关系信息可以包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。所述相干传输关系信息可以根据所述相干传输能力信息确定。所述相干传输关系也可以不根据相干传输能力信息确定,例如,即使所述相干传输能力信息指示终端所有的天线都可以相干传输,基站发送的相干传输关系信息也可以是所有的上行参考信号端口都不进行相干传输。
步骤23,根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
步骤24,终端接收基站根据所述相干传输关系及所述基站接收到的上行参考信号确定的上行传输指示信息。
所述相干传输关系信息可以为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息
所述相干传输关系信息可以包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
可选地,所述相干传输关系信息根据所述相干传输能力信息确定。或者
可选地,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
可选地,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
可选地,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
可选地,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信 息。
具体的,如图2所示,上行传输方法包括:
步骤1:UE上报相干传输能力;
步骤2:基站根确定上行参考信号资源的配置信息,并向终端发送所述配置信息;
可选地,基站根据终端的相干传输能力确定上行参考信号资源的配置信息;
可选地,基站向终端发送的上行参考信号资源配置信息中包含每个上行参考信号资源内的上行参考信号上行参考信号端口的相干传输关系信息。
步骤3:终端根据基站配置的上行参考信号资源发送上行参考信号。
步骤4:基站接收终端发送的上行参考信号,确定SRI和/或TPMI,TRI。
步骤5:基站向终端发送用于上行传输的SRI和/或TPMI,TRI指示。
步骤6:终端确定上行传输的预编码、数据流数及使用的天线。
在本公开的一些实施例中,步骤2和步骤3的时序关系可以交换。如果基站根据终端的相干传输能力确定上行参考信号资源的配置信息,则UE上报相干传输能力的步骤需要先于基站确定上行参考信号资源的配置信息。否则,UE上报相干传输能力的步骤可以先于基站确定并发送上行参考信号资源的配置信息,也可以在基站确定并发送上行参考信号资源的配置信息。
在本公开的一些实施例中,终端上报的相干传输能力至少包括终端的相干传输能力信息包括天线分组信息,其中每个天线组内的天线可以相干传输,不同天线组内的天线不能相干传输。
可选地,所述天线分组信息中包含天线组数目信息和每个天线组包含的天线数的信息。
可选地,终端的相干传输能力信息还包括总的天线数目信息。
可选地,终端的相干传输能力信息包括终端至少部分天线可以相干传输的信息或终端所有天线都不能相干传输的信息。
可选地,终端的相干传输能力信息包括终端最大或最小可以相干传输的天线数信息。
可选地,所述相干传输关系信息具体包括上行参考信号端口的分组信息, 其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
可选地,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
可选地,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
具体来说,终端相干传输能力信息可以包括以下信息中的一种或多种:
终端所支持的天线数目;
终端的全部天线可以相干传输;
终端的所有天线都不能相干传输;
终端可以相干传输的天线组的数量;
终端可以相干传输的各个天线组包含的天线数;
终端支持的可以相干传输的最大天线数目,例如最多支持一个天线相干传输(即不支持天线间的相干传输),最多支持2个,4个天线相干传输等;
终端支持的包含特定值个天线数的天线组的数量,所述特定值为终端与基站约定的值或是根据终端与基站约定的规则确定的值,例如:
天线数 天线组数
1 N 1
2 N 2
4 N 3
天线数 天线组数
2 N 1
4 N 2
8 N 3
终端支持的天线面板的数量;
终端支持的各个天线面板包含的天线数;
终端支持的天线面板与终端可以相干传输的天线组之间的映射关系信息;
终端所支持的一个或面板的天线数目;
终端所支持的一个或多个面板的天线是否可以相干传输;
终端所支持的一个或多个面板可以相干传输的天线组的数量;
终端所支持的一个或多个面板的可以相干传输的各个天线组包含的天线数;
终端的一个或多个面板的所支持的可以相干传输的最大天线数目;
终端的一个或多个面板包含特定值个天线数的天线组的数量;
可选地,终端没有上报天线间的相干传输能力,则默认终端所有的天线都不能相干传输。
可选地,终端没有上报天线间的相干传输能力,则默认终端所有的天线都可以相干传输。
可选地,除以上信息外,终端还上报终端支持的最大数据流数信息。
一个实施例是相关传输能力信息只包含一些状态,每个状态代表终端的天线是否都可以进行相干传输,或都不能进行相干传输,或只能部分进行相干传输。例如:
Figure PCTCN2018107212-appb-000001
其中部分相干传输时还可以对应于终端最大可以同时相干传输的天线数或最小的可以同时相干传输的天线数。该数值可以通过一个其他专门的信息携带或根据一定的约定获得。例如约定部分相干传输对应于2个天线可以相干传输,具体含义为终端包含若干个天线组,每个天线组内包含2个天线,天线组内的天线可以相干传输,天线组间的天线不能相干传输。
另一个实施例是相关传输能力信息包含的每个状态代表终端最大可以相干传输的天线数,例如:
State 终端最大可以相干传输的天线数
1 1
2 2
3 4
4 Reserved
或者,
State 终端最大可以相干传输的天线数
1 1
2 终端所支持的最大天线数
3 2
4 4
另一个实施例是相关传输能力信息包含的每个状态代表终端最小可以相干传输的天线数,例如:
State 终端最小可以相干传输的天线数
1 1
2 2
3 4
4 Reserved
或者,
State 终端最小可以相干传输的天线数
1 1
2 终端所支持的最大天线数
3 2
4 4
其中终端最小的可以同时相干传输的天线数对应于以下数值:假设将可以相干传输的天线认为是一个相干传输天线组,所有的相干传输天线组中包含的天线数的最小值。
可选地,使用2比特指示终端天线的相干传输能力。
在本公开的一些实施例中,步骤2中,基站确定上行参考信号资源的配置信息,并向终端发送所述配置信息时,所述上行参考信号资源的配置和相干传输关系信息中上行参考信号端口的分组信息具体包括:
方式一:基站配置一个上行参考信号或多个资源,每个上行参考信号资 源中部分上行参考信号端口可以相干传输。
方式二:基站配置一个或多个上行参考信号资源,每个上行参考信号资源内的上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输。
方式三:基站配置多个上行参考信号资源,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间也可以相干传输。
方式四:基站配置多个上行参考信号资源,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号资源内的部分上行参考信号端口进行相干传输。
方式五:基站配置多个上行参考信号资源,这多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系。可选地,同一资源组内的两个上行参考信号资源不能同时用于上行参考信号的发送。
方式六:基站配置多个上行参考信号资源,这多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号资源配置及资源组内上行参考信号资源的上行参考信号端口间的相干传输关系。可选地,两个上行参考信号资源组不能同时用于上行参考信号的发送。
对于步骤二,基站向终端通知上行参考信号资源的配置信息,所述配置信息包含配置的上行参考信号资源的数量,每个上行参考信号资源包含的上行参考信号端口数。
对于方式一,五,六,可选地,基站向终端发送的上行参考信号资源配置信息中包含每个上行参考信号资源内的上行参考信号端口的相干传输关系信息。
可选地,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端口数。
所述相干传输关系信息可以为所述上行参考信号端口与所述天线组之间的映射关系;或者,
所述相干传输关系信息可以为所述上行参考信号资源与所述天线组之间 的映射关系。
在根据所述上行参考信号资源的配置信息发送上行参考信号之前,还包括:
根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:
所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;
根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
上行参考信号端口的相干传输关系信息用于指示哪些上行参考信号端口是可以相干传输的,哪些上行参考信号端口间不能相干传输。一些具体的方式可以为:
方法一:只指示可以相干传输的上行参考信号端口组的信息,上行参考信号端口组之间默认不进行相干传输。以一个上行参考信号资源为例,假设这个上行参考信号资源包含了4个上行参考信号端口,基站只指示第一个上行参考信号端口和第二个上行参考信号端口是可以相干传输的,则终端收到指示信息后,认为第一个和第二个上行参考信号端口构成一个可以相干传输的上行参考信号端口组,第三个上行参考信号端口为一个上行参考信号端口组,第四个上行参考信号端口为一个上行参考信号端口组,这些上行参考信号端口组之间不进行相干传输。则终端选择两个可以相干传输天线发送第一个和第二个上行参考信号端口,另外选择两个天线发送第三个和第四个上行参考信号端口。终端用来发送第三个和第四个上行参考信号端口的天线和发送第一个和第二个上行参考信号端口的天线可以属于同一个可以相干传输的天线组,也可以是不同的相干传输天线组。可选地,限定终端用来发送这三 个上行参考信号端口组的天线分属于不同的相干传输天线组。
再例如,基站指示第一个上行参考信号端口和第二个上行参考信号端口是可以相干传输,第三个和第四个上行参考信号端口可以相干传输,则终端收到指示信息后,认为第一个和第二个上行参考信号端口构成一个可以相干传输的上行参考信号端口组,第三个和第四个上行参考信号端口构成另一个可以相干传输的上行参考信号端口组,这两个上行参考信号端口组之间不能相干传输。则终端从一个包含至少两个天线的相干传输天线组中选择两个天线用于传输第一个上行参考信号端口和第二个上行参考信号端口对应的上行参考信号,从其他的天线中选择两个天线分别传输上行参考信号端口三和四对应的上行参考信号。该示例可以扩展到基站配置了多个上行参考信号资源吗,每个上行参考信号资源的指示。
方法二:指示全部的上行参考信号端口间的相干传输关系。例如指示包含的上行参考信号端口组数,每个上行参考信号端口组包含的上行参考信号端口数,基站和终端默认同一个上行参考信号端口组内的上行参考信号端口可以相干传输,不同上行参考信号端口组的上行参考信号端口不进行相干传输。终端根据基站指示的上行参考信号端口间的相干传输关系确定各个上行参考信号端口对应的天线,保证对应于可以相干传输的上行参考信号端口的天线是可以相干传输的天线。在这种情况下,可选地,上行参考信号资源配置信息中可以不显性指示每个上行参考信号资源对应的上行参考信号端口数或上行参考信号资源配置包含的总的上行参考信号端口数。
方法三:可选地,上行参考信号资源配置信息中包含所有上行参考信号资源的总的上行参考信号端口数或每个上行参考信号资源包含的上行参考信号端口数。假设可以相干传输的上行参考信号端口构成一个上行参考信号端口组,可选地,终端必须将包含较多可以相干传输的上行参考信号端口的上行参考信号端口组映射到较小的上行参考信号端口序号上,包含较少上行参考信号端口的上行参考信号端口组映射到较大的上行参考信号端口序号上。这样在基站配置了一个上行参考信号资源时,可以使用较少的比特映射上行参考信号端口相干传输信息。例如基站配置了一个上行参考信号资源,包含4个上行参考信号端口,则上行参考信号端口间的相干传输关系只包含以下 几种:(1,1,1,1),(2,1,1),(2,2),(3,1),(4)需要3比特指示,其中(X1,X2,X3,X4)代表存在4个上行参考信号端口组,第一个组内包含X1个上行参考信号端口,第二个组内包含X2个上行参考信号端口,…,组内上行参考信号端口间是相干传输的,组间是非相干传输的。如果根据终端的传输能力进行限定,则需要的比特数更少。例如终端最多支持两个上行参考信号端口的相干传输,则只包含(1,1,1,1),(2,1,1),(2,2)三种情况,2比特指示就够了。可选地,上行参考信号端口间的相干传输关系与上行参考信号资源包含的上行参考信号端口数联合进行编码。例如基站配置了一个上行参考信号资源,一个上行参考信号资源可配置的上行参考信号端口数为2和4,则上行参考信号端口间的相干传输关系最多为:(1,1),(2),(1,1,1,1),(2,1,1),(2,2),(3,1),(4),则上行参考信号资源包含的上行参考信号端口数与上行参考信号端口间的相干传输关系所需的总比特数为3。同上一个示例,如果根据终端的相干传输能力进行限定,则需要的比特数更少。即根据终端的相干传输能力和上行参考信号资源所允许配置的上行参考信号端口数确定上行参考信号端口间的相干传输关系所需的比特数,或上行参考信号端口间的相干传输关系和上行参考信号端口数所需的比特数。
方法四:基站配置了多个上行参考信号资源,指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源。这一个上行参考信号资源的上行参考信号端口间的相干传输关系的具体指示方法可以为方法一或二或三。(这种方式可用于波束管理,用于进行发送或接收波束扫描的情景。不同的上行参考信号资源对应于不同的发送波束或不同的接收波束)。终端根据基站指示的上行参考信号资源的上行参考信号端口间的相干传输关系确定各个上行参考信号端口对应的天线,保证用来传输可以相干传输的上行参考信号端口的天线是可以相干传输的天线。终端对不同的上行参考信号资源采用相同的天线发送上行参考信号。
方法五:基站配置了多个上行参考信号资源组,每个上行参考信号资源组包括一个或多个上行参考信号资源,指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源。这个上行参考信号资源的 上行参考信号端口间的相干传输关系的具体指示方法可以为方法一或二或三。终端根据基站指示的上行参考信号资源的上行参考信号端口间的相干传输关系确定各个上行参考信号端口对应的天线,保证用来传输可以相干传输的上行参考信号端口的天线是可以相干传输的天线。终端对不同的上行参考信号资源采用相同的天线发送上行参考信号。
方法六:基站配置了多个上行参考信号资源组,基站指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。这一个上行参考信号资源组的上行参考信号端口间的相干传输关系的具体指示方法可以为方法一或二或三。(一种应用场景为不同的上行参考信号资源组对应于不同的发送波束或不同的接收波束。)终端根据基站指示的一个上行参考信号资源组内的上行参考信号资源的上行参考信号端口间的相干传输关系确定各个上行参考信号端口对应的天线,保证用来传输可以相干传输的上行参考信号端口的天线是可以相干传输的天线。终端对不同的上行参考信号资源组采用相同的天线发送上行参考信号。
对于方式一,可选地,基站只配置一个上行参考信号资源,终端和基站默认基站配置的上行参考信号资源的上行参考信号端口的相干传输关系与终端上报的相干传输能力相对应。例如,终端上报的第NK个相干传输天线组包含Mk个天线,则基站配置的上行参考信号资源的前M1个上行参考信号端口对应于终端上报的第1个天线组,…,基站配置的上行参考信号资源的第
Figure PCTCN2018107212-appb-000002
到第
Figure PCTCN2018107212-appb-000003
个上行参考信号端口对应于终端上报的第k个天线组,以此类推。这种方式可以扩展到一个上行参考信号资源对应于多个可以相干传输的天线组。例如,基站配置了两个上行参考信号资源,第一个上行参考信号资源对应于终端上报的前X1个可以相干传输的天线组,第二个上行参考信号资源对应于终端上报的第X1+1~X2个可以相干传输的天线组。终端接收到基站的上行参考信号配置信息后,采用这种默认的方式确定用于传输每个上行参考信号资源的天线。
上述方法可以很容易地扩展到基站配置了多个上行参考信号资源的情形,例如对应到上面介绍的方法四到六,此处进行一个示例解释,不再一一加以说明。举例来说,基站配置多个上行参考信号资源,终端和基站默认基站配 置的上行参考信号资源的上行参考信号端口的相干传输关系与终端上报的相干传输能力相对应。例如,终端上报的第NK个相干传输天线组包含Mk个天线,则基站配置的每个上行参考信号资源的前M1个上行参考信号端口对应于终端上报的第1个天线组,…,基站配置的每个上行参考信号资源的第
Figure PCTCN2018107212-appb-000004
到第
Figure PCTCN2018107212-appb-000005
个上行参考信号端口对应于终端上报的第k个天线组,以此类推。终端接收到基站的上行参考信号配置信息后,采用这种默认的方式确定用于传输每个上行参考信号资源的天线。
对于方式二(或与方式二对应的方式五到六),若基站发送的上行参考信号资源配置信息中包含每个上行参考信号资源包含的上行参考信号端口数信息,则终端根据每个上行参考信号资源包含的上行参考信号端口数确定与其对应的天线s,终端需要保证用于传输一个上行参考信号资源对应的上行参考信号的天线s间是可以相干传输的。可选地,限定终端用来发送这三个上行参考信号端口组的天线分属于不同的相干传输天线组。
对于方式二(或与方式二对应的方式五到六),可选地,基站发送的上行参考信号资源配置信息中不包含每个上行参考信号资源包含的上行参考信号端口数信息,终端上报的第NK个相干传输天线组包含Mk个天线,则基站配置的第一个上行参考信号资源包含M1个上行参考信号端口,对应于终端上报的第1个天线组,…,基站配置的K个上行参考信号资源包含Mk个上行参考信号端口,对应于终端上报的第k个天线组,以此类推。基站配置的所有上行参考信号资源包含的总的上行参考信号端口数可以等于终端上报的总的天线数,也可以不等。可选地,基站发送所配置的所有上行参考信号资源的总的上行参考信号端口数信息。
对于方式三(或与方式三对应的方式五到六),可选地,基站发送的上行参考信号资源配置信息中包含上行参考信号资源间的相干传输关系信息。上行参考信号资源间的相干传输关系信息用于指示哪些上行参考信号资源的上行参考信号端口是可以相干传输的,哪些上行参考信号资源间的上行参考信号端口间不能相干传输。一些具体的方式可以为:
方法一:只指示可以相干传输的上行参考信号资源组的信息,上行参考信号资源组之间默认不进行相干传输。以基站配置了4个上行参考信号资源 为例,基站只指示第一个上行参考信号资源和第二个上行参考信号资源是可以相干传输的,则终端收到指示信息后,认为第一个和第二个上行参考信号资源构成一个可以相干传输的上行参考信号资源组,第三个上行参考信号资源为一个上行参考信号资源组,第四个上行参考信号资源为一个上行参考信号资源组,这些上行参考信号资源组之间不进行相干传输。则终端选择第一个上行参考信号资源和第二个上行参考信号资源所包含的上行参考信号端口数个可以相干传输天线发送第一个和第二个上行参考信号资源,另外选择第三个上行参考信号资源包含的上行参考信号端口数个可以相干传输的天线发送第三个上行参考信号资源,第四个上行参考信号资源包含的上行参考信号端口数个可以相干传输的天线发送第四个上行参考信号资源。终端用来发送第三个和第四个上行参考信号资源的天线和发送第一个和第二个上行参考信号资源的天线可以属于同一个可以相干传输的天线组,也可以是不同的相干传输天线组。可选地,限定终端用来发送这三个上行参考信号资源组的天线分属于不同的相干传输天线组。
方法二:指示全部的上行参考信号资源间的相干传输关系。例如指示包含几个上行参考信号资源组,每个上行参考信号资源组包含几个上行参考信号资源。终端根据基站指示的上行参考信号资源间的相干传输关系确定各个上行参考信号资源对应的天线,保证用来传输可以相干传输的上行参考信号资源的上行参考信号端口的天线是可以相干传输的天线。
方法三:基站配置了多个上行参考信号资源组,指示一个上行参考信号资源组的上行参考信号资源间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。这一个上行参考信号资源组的上行参考信号资源间的相干传输关系的具体指示方法可以为方法一或二。终端根据基站指示的上行参考信号资源组的上行参考信号资源间的相干传输关系确定各个上行参考信号资源的上行参考信号端口对应的天线,保证用来传输可以相干传输的上行参考信号资源的上行参考信号端口的天线是可以相干传输的天线。终端对不同的上行参考信号资源组采用相同的天线发送上行参考信号。
方法四,五,六与上述方法四,五,六类似。
可选地,基站向终端通知上行参考信号资源的配置信息,所述配置信息 包含所述上行参考信号资源与终端上报的可以相干传输的天线组之间的映射关系信息;或者
所述配置信息包含所述上行参考信号资源中的上行参考信号端口与终端上报的可以相干传输的天线组之间的映射关系信息。
可选地,如果基站没有发送任何上行参考信号端口间的相干传输关系,终端必须使用可以相干传输的天线发送同一个上行参考信号资源内的上行参考信号。
可选地,如果基站没有发送任何上行参考信号端口间的相干传输关系,终端认为同一个上行参考信号资源内的上行参考信号可以使用非相干传输天线发送。
可选地,如果基站没有发送任何上行参考信号资源间的相干传输关系,终端可以认为不同的上行参考信号资源间可以使用非相干传输天线发送。
在本公开的一些实施例中,上述步骤3中,终端根据基站配置的上行参考信号资源发送上行参考信号时,终端基于基站发送的上行参考信号资源配置信息确定每个上行参考信号资源的各个上行参考信号端口对应的天线。
在本公开的一些实施例中,上述步骤4中,基站接收终端发送的上行参考信号,确定SRI(SRS资源指示信息或上行参考信号资源指示信息)和或TPMI,TRI和MCS。
基站接收终端发送的上行参考信号,按照一定的准则确定上行传输的层数,预编码矩阵和上行参考信号资源。该准则可以为RSRP最大准则,吞吐量最大准则,考虑了用户间干扰的准则等。
如果基站只为终端配置了一个上行参考信号资源,则无需进行上行参考信号资源的选择。
如果基站为终端配置的每个上行参考信号资源只包含一个上行参考信号端口,则只需进行SRI的选择,无需进行预编码矩阵的选择。传输层数等于选择的上行参考信号资源数。
可选地,基站基于上行参考信号资源配置对应的上行参考信号端口间的相干传输信息确定上行传输的层数、预编码矩阵和上行参考信号资源。具体地,基站在选择预编码矩阵的时候,只能基于上行参考信号资源配置对应的 上行参考信号端口间的相干传输信息选择预编码矩阵,不能选择超出基于上行参考信号资源配置对应的上行参考信号端口间的相干传输关系范围的预编码矩阵。举例来说,基站配置的上行参考信号资源包含4个上行参考信号端口,基站指示只有第一个和第二个上行参考信号端口可以相干传输。则基站选择预编码矩阵时,只能从对应于总上行参考信号端口数为4,只有第一个和第二个上行参考信号端口可以相干传输的预编码矩阵中选择预编码矩阵。候选预编码矩阵中包含第一个上行参考信号端口和第二个上行参考信号端口不进行相干传输的预编码矩阵。其中,对应于某两个上行参考信号端口相干传输的预编码矩阵是指该预编码矩阵中对应于至少一层,该两个上行参考信号端口都存在非零值,即该两个上行参考信号端口可以同时传输属于同一层的数据。
可选地,基站为每个上行参考信号资源分别选择预编码矩阵。
可选地,基站遍历所有可能的上行参考信号资源同时传输的组合构成的集合,选择最优的预编码矩阵。其中一个上行参考信号资源同时传输的组合是指一个或多个上行参考信号资源同时传输。举例来说,基站配置了3个上行参考信号资源,则所有可能的上行参考信号资源同时传输的组合构成的集合为:{只有第一个上行参考信号资源发送上行参考信号,只有第二个上行参考信号资源发送上行参考信号,只有第三个上行参考信号资源发送上行参考信号,第一个和第二个上行参考信号资源发送上行参考信号,第一个和第三个上行参考信号资源发送上行参考信号,第二个和第三个上行参考信号资源发送上行参考信号,第一个、第二个和第三个上行参考信号资源发送上行参考信号}。具体的地,基站从同时传输的所有上行参考信号资源所包含的总的上行参考信号端口数对应的码本中选择预编码矩阵,或者,基站从同时传输的每个上行参考信号资源对应的码本中选择预编码矩阵,各个上行参考信号资源的预编码矩阵进行权值变换后组成整体的预编码矩阵。
可选地,基站遍历所有的上行参考信号资源组中每个上行参考信号资源组内所有可能的上行参考信号资源同时传输的组合构成的集合,选择一个上行参考信号资源组及其对应的上行参考信号资源和预编码矩阵,传输层数。
可选地,基站遍历每个上行参考信号资源组中最多选择一个上行参考信 号资源对应的上行参考信号资源同时传输的组合构成的集合,选择最优的预编码矩阵。
上述实施例中,步骤5中,基站向终端发送用于上行传输的SRI,TPMI,TRI指示。
如果基站为终端只配置了一个上行参考信号资源,则指示信息中无需包含SRI指示信息。
如果基站为终端配置了多个上行参考信号资源,则指示信息中需要包含SRI指示信息。SRI指示信息可以只指示一个上行参考信号资源,也可以指示多个上行参考信号资源。
如果基站为终端配置了多个上行参考信号资源,且每个上行参考信号资源只包含一个上行参考信号端口,则只需进行SRI的指示,无需进行预编码矩阵和TRI的指示。SRI对应的上行参考信号资源数等于数据层数。
SRI可以采用独立编码的方式。如果使用独立编码的方式,可以采用bitmap的方式,即一个比特对应一个上行参考信号资源,每个比特的一种状态表示选择了该上行参考信号资源,另一种状态表示不选择该上行参考信号资源。举例来说,基站配置了4个上行参考信号资源,则使用4比特进行上行参考信号资源指示,每个比特的状态1表示选择了该资源,状态0表示没有选择该资源。则1101表示选择了第1,2,4个资源。SRI也可以采用联合编码的方式。即遍历所有的上行参考信号资源选择组合,进行联合编码。仍以基站配置了4个上行参考信号资源为例,选择k个上行参考信号资源有
Figure PCTCN2018107212-appb-000006
种可能,总的上行参考信号资源选择可能数为
Figure PCTCN2018107212-appb-000007
则使用
Figure PCTCN2018107212-appb-000008
比特进行编码。当基站配置了多个上行参考信号资源组,终端最多只能从一个上行参考信号资源组中的一个上行参考信号资源与其他上行参考信号资源组的上行参考信号资源发送上行参考信号时,上行参考信号资源选择的组合数则小于遍历所有上行参考信号资源的组合的组合数。
为简便起见,下面以SRI指示了一个资源为例进行阐述,可以扩展到多个上行参考信号资源中的每个上行参考信号资源,或者多个上行参考信号资源联合指示的方式。
TPMI和TRI可以独立编码指示,也可以联合编码指示。如果独立编码, DCI中包含专门的区域用于指示TRI,另有一个专门的区域指示TPMI。
可选地,TPMI的编码状态数由TRI确定。即只针对对应于TRI的所有码字进行重新编号后指示TPMI。举例来说,如果一个上行参考信号资源包含4个上行参考信号端口。4个上行参考信号端口的码本在TRI=1,2,3,4时分别包含T1,T2,T3,T4个码字。若TRI=m,则上行预编码矩阵仅存在于TRI=m时对应的所有码字中,则TPMI的一个编码状态对应于TRI=m时对应的一个码字。一种方式是TPMI的编码比特数由TRI决定,例如使用log(Tm)个比特对TPMI进行编码。另一种方式是TPMI的编码比特数由各个可能的TRI所对应的最多码字个数决定,例如用max log(Tm)个比特对TPMI进行编码,如果编码比特数对应的状态多于TRI=m对应的码字数,则多余的状态为预留的状态。
可选地,对应于步骤5,基站根据上行参考信号端口间的相干传输信息确定预编码矩阵的搜索范围。TPMI的编码状态数由TRI和上行参考信号端口间的相干传输信息决定。TPMI的编码状态数为与TRI对应的,同时对应于上行参考信号端口间的相干传输关系的预编码矩阵数。一种方式是TPMI的编码比特数由TRI和上行参考信号端口间的相干传输信息决定,例如TRI=m时,对应于上行参考信号端口间的相干传输关系的预编码矩阵的个数为Sm,则使用log(Sm)个比特对TPMI进行编码。另一种方式是TPMI的编码比特数由上行参考信号端口间的相干传输信息条件下各个可能的TRI所对应的最多码字个数决定,例如用max log(Sm)个比特对TPMI进行编码,如果编码比特数对应的状态多于TRI=m对应的码字数,则多余的状态为预留的状态。
TRI的独立编码比特数由TRI的所有可能取值决定。一种方式为TRI的所有可能取值由上行参考信号资源配置的上行参考信号端口数确定。例如TRI的所有可能取值为小于等于上行参考信号资源所包含的上行参考信号端口数的所有正整数。一种方式为TRI的所有可能取值由上行参考信号资源配置的上行参考信号端口数和终端所支持的最大传输流数决定,即TRI的所有可能取值为小于等于上行参考信号资源所包含的上行参考信号端口数和终端所支持的最大传输流数的最小值的所有正整数。
TPMI和TRI可以联合编码指示。
当TPMI和TRI联合编码时,总的有效编码状态数为所有的TRI对应的所有可能的预编码矩阵的个数之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。总的比特数为
可选地,对应于步骤5,基站根据上行参考信号端口间的相干传输信息确定预编码矩阵的搜索范围。TPMI和TRI联合编码的有效编码状态数等于所有的TRI可能取值对应的与上行参考信号端口间的相干传输关系相对应的预编码矩阵之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。
SRI和TPMI,TRI也可以进行联合编码指示。总的有效编码状态数可以为所有的上行参考信号资源对应的所有的TRI对应的所有可能的预编码矩阵的个数之和。或者,总的有效编码状态数可以为所有可能的上行参考信号资源同时传输的组合构成的集合对应的所有的TRI对应的所有可能的预编码矩阵的个数之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。
可选地,基站针对选择的上行参考信号资源分别指示TPMI和TRI。
可选地,基站针对选择的上行参考信号资源联合指示TPMI和TRI。
可选地,基站进行上行参考信号资源组的指示。该指示也可以独立编码或与其他信息联合编码。
本步骤中的TPMI,TRI,SRI,上行参考信号资源组的编码方式需要基站侧与终端侧进行提前约定。
该实施例中,上述步骤6中,终端确定上行传输的TPMI和数据流数。具体的,终端接收基站发送的SRI或TPMI和TRI,或TPMI,TRI和SRI指示信息,可选地,终端接收上行参考信号资源组指示信息。根据所接收到的上述信息,终端确定上行传输的预编码矩阵,传输流数和使用的天线(天线)。其中,终端用于进行上行传输的天线对应于用于发送SRI指示的上行参考信号资源对应的上行参考信号使用的天线。
本公开的一些实施例中,图1所示方法的第二种实现方案,包括:
步骤31,向基站发送终端的相干传输能力信息;终端的相干传输能力信 息为终端支持的天线相干传输能力。所述天线为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
步骤32,接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
向基站发送终端的相干传输能力信息之前还包括:
步骤33,接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息;所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息,所述相干传输关系信息根据所述相干传输能力信息确定。
步骤34,终端接收基站根据所述相干传输关系及所述基站接收到的上行参考信号确定的上行传输指示信息指示的内容。
该实施例中,所述相干传输关系与终端的相干传输能力上行参考信号端口之间的映射关系是预定义的。
具体的,如图3所示,包括:
步骤1,UE上报相干传输能力。
步骤2:基站根据终端的相干传输能力确定上行参考信号资源的配置信息,并向终端发送所述配置信息。
步骤3:终端根据基站配置的上行参考信号资源发送上行参考信号。
具体的,终端基于基站发送的上行参考信号资源配置信息及预定义的SRS上行参考信号端口间的相干传输关系与终端上报能力间的关系确定每个上行参考信号资源的各个上行参考信号端口对应的天线。
步骤4:基站接收终端发送的上行参考信号,确定TPMI,TRI和MCS等级。
步骤5:基站向终端发送用于上行传输的SRI,TPMI,TRI指示。
步骤6:终端确定上行传输的TPMI和数据流数
其中,步骤2中,基站根据终端的相干传输能力确定上行参考信号资源的配置信息,并向终端发送所述配置信息时,有以下几种方式:
方式一:基站配置一个上行参考信号或多个资源,每个上行参考信号资源中部分或全部上行参考信号端口可以相干传输。
方式二:基站配置一个或多个上行参考信号资源,其中每个上行参考信号资源内的上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输。
方式三:基站配置多个上行参考信号资源,其中每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间也可以相干传输。
方式四:基站配置多个上行参考信号资源,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号资源内的部分上行参考信号端口进行相干传输。
方式五:基站配置多个上行参考信号资源,这多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系。可选地,同一资源组内的两个上行参考信号资源不能同时用于上行参考信号的发送。
方式六:基站配置多个上行参考信号资源,这多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号资源配置及资源组内上行参考信号资源的上行参考信号端口间的相干传输关系。可选地,两个上行参考信号资源组不能同时用于上行参考信号的发送。
可选地,基站只配置一个上行参考信号资源,终端和基站默认基站配置的上行参考信号资源的上行参考信号端口的相干传输关系与终端上报的相干传输能力相对应。例如,终端上报的第NK个相干传输天线组包含Mk个天线,则基站配置的上行参考信号资源的前M1个上行参考信号端口对应于终端上报的第1个天线组,…,基站配置的上行参考信号资源的第
Figure PCTCN2018107212-appb-000009
到第
Figure PCTCN2018107212-appb-000010
个上行参考信号端口对应于终端上报的第k个天线组,以此类推。这种方式可以扩展到一个上行参考信号资源对应于多个可以相干传输的天线组。例如,基站配置了两个上行参考信号资源,第一个上行参考信号资源对应于终端上报的前X1个可以相干传输的天线组,第二个上行参考信号资源对应于 终端上报的第X1+1~X2个可以相干传输的天线组。终端接收到基站的上行参考信号配置信息后,采用这种默认的方式确定用于传输每个上行参考信号资源的天线。
上述方法可以很容易地扩展到基站配置了多个上行参考信号资源的情形,例如对应到上面介绍的方法四到六,此处进行一个示例解释,不再一一加以说明。举例来说,基站配置多个上行参考信号资源,终端和基站默认基站配置的上行参考信号资源的上行参考信号端口的相干传输关系与终端上报的相干传输能力相对应。例如,终端上报的第NK个相干传输天线组包含Mk个天线,则基站配置的每个上行参考信号资源的前M1个上行参考信号端口对应于终端上报的第1个天线组,…,基站配置的每个上行参考信号资源的第
Figure PCTCN2018107212-appb-000011
到第
Figure PCTCN2018107212-appb-000012
个上行参考信号端口对应于终端上报的第k个天线组,以此类推。终端接收到基站的上行参考信号配置信息后,采用这种默认的方式确定用于传输每个上行参考信号资源的天线。
可选地,基站发送的上行参考信号资源配置信息中包含每个上行参考信号资源包含的上行参考信号端口数信息,则终端根据每个上行参考信号资源包含的上行参考信号端口数确定与其对应的天线s,终端需要保证用于传输一个上行参考信号资源对应的上行参考信号的天线s间是可以相干传输的。可选地,限定终端用来发送这三个上行参考信号端口组的天线分属于不同的相干传输天线组。
可选地,约定同一个上行参考信号资源内的上行参考信号都是相干传输。
可选地,约定同一个上行参考信号资源内的上行参考信号为非相干传输。
可选地,约定不同的上行参考信号资源间为非相干传输。
本公开的一些实施例中,图1所示方法的第三种实现方案,包括:
步骤41,直接接收基站为终端配置并发送的上行参考信号资源的配置信息。
步骤42,向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信 息或所有端口都不能相干传输的信息。
步骤43,根据所接收的或确定的上行参考信号资源的配置信息所指示的上行参考信号端口间的相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可以相干传输的天线发送相干传输的上行参考信号端口对应的上行参考信号。
步骤44,终端接收基站根据终端发送的上行参考信号发送的指示信息,所述指示信息包括:上行传输的预编码矩阵,传输层数和选择的上行参考信号资源。具体的,所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
具体的,如图4所示,该方法包括:
步骤1:基站为终端配置上行参考信号资源,并向终端发送上行参考信号资源的配置信息。
步骤2:终端根据基站配置的上行参考信号资源发送上行参考信号。
可选地,终端还向基站发送上行参考信号上行参考信号端口间的相干传输信息;
步骤3:基站接收终端发送的上行参考信号,确定上行传输的预编码矩阵,传输层数和选择的上行参考信号资源。
步骤4:基站向终端发送用于上行传输的SRI,TPMI,TRI指示。
步骤5:终端确定上行传输的TPMI和数据流数。
其中,步骤1中:基站为终端配置上行参考信号资源,并向终端发送上行参考信号资源的配置信息。有如下几种方式:
方式一:基站为终端配置一个上行参考信号资源,上行参考信号资源配置信息中包含上行参考信号资源里包含的上行参考信号端口数。可选地,所述上行参考信号端口数小于等于终端所支持的最大上行参考信号端口数,或天线数或终端所包含的发送天线数。
方式二:基站配置多个上行参考信号资源,上行参考信号资源配置信息中包含上行参考信号资源数和每个上行参考信号资源包含的上行参考信号端口数。可选地,上行参考信号资源配置信息中只包含一个上行参考信号端口 数,该上行参考信号端口数适用于所有的上行参考信号资源(这种方式可用于波束管理)。可选地,其中每一个上行参考信号资源包含的上行参考信号端口数与终端支持的一个panel包含的天线数相等(这种方式可用于多panel传输。当然也可以不必限制上行参考信号端口数一定等于panel的天线数,也可以小于panel的天线数)。
方式三:基站配置多个上行参考信号资源,每个上行参考信号资源包含一个上行参考信号端口,上行参考信号资源配置信息中包含上行参考信号资源数。可选地,在终端不支持天线间的相干传输时基站只能采用此配置。
方式四:基站配置多个上行参考信号资源组,上行参考信号资源配置信息中包含上行参考信号资源组数,每个上行参考信号资源组内的上行参考信号资源数和每个上行参考信号资源包含的上行参考信号端口数。可选地,上行参考信号资源配置信息中只包含上行参考信号资源组数和对应于一个上行参考信号资源组的上行参考信号资源配置信息,该上行参考信号资源组的上行参考信号资源配置信息适用于所有的上行参考信号资源组。
在本步骤中,可选地,终端上报传输能力信息或天线结构信息。具体地,至少包括以下信息中的一种或多种:
UE所支持的最大天线数,或天线数;
终端是否支持天线间的相干传输;或者,
终端支持的可以相干传输的最大天线数;
终端支持的天线面板(panel)数;
终端支持的每个天线panel内的天线数。
其中,若终端支持的可以相干传输的最大天线数为1,则意味着终端不支持天线间的相干传输。
可选地,基站根据终端的上述上报信息确定上行参考信号资源包含的上行参考信号端口数。
步骤2中:终端根据基站配置的上行参考信号资源发送上行参考信号。可选地,终端还向基站发送上行参考信号端口间的相干传输信息。
终端接收基站发送的上行参考信号资源配置信息,选择每个上行参考信号端口对应的天线,在这些天线上发送上行参考信号。
由于不同的终端可能具有不同的相干传输能力,终端未必可以在所有的上行参考信号端口上进行相干传输。因此,可选地,终端还向基站发送上行参考信号端口间的相干传输信息。所述终端向基站发送过的上行参考信号端口间的相干传输信息用于指示哪些上行参考信号端口是可以相干传输的,哪些上行参考信号端口间不能相干传输。例如:
方法一:只指示包含两个或两个以上可以相干传输的上行参考信号端口的上行参考信号端口组的相干传输信息,上行参考信号端口组之间默认不进行相干传输。以一个上行参考信号资源为例,假设基站配置的上行参考信号资源包含了4个上行参考信号端口,终端使用可以相干传输的两个天线传输第一个和第二个上行参考信号端口,其他上行参考信号端口使用的天线互相之间及与第一个和第二个上行参考信号端口对应的天线s间不能相干传输。终端向基站指示第一个上行参考信号端口和第二个上行参考信号端口可以相干传输。则基站收到指示信息后,认为第一个和第二个上行参考信号端口是可以相干传输的上行参考信号端口组,第三个上行参考信号端口为一个上行参考信号端口组,第四个上行参考信号端口为一个上行参考信号端口组,这些上行参考信号端口组之间不能进行相干传输。则基站在接收到上行参考信号资源后确定TPMI和TRI时可以仅在对应于该上行参考信号端口间的相干传输关系的码字中选择上行预编码矩阵。
方法二:指示全部的上行参考信号端口间的相干传输关系。例如指示包含的上行参考信号端口组数,每个上行参考信号端口组包含的上行参考信号端口数。基站和终端约定同一个上行参考信号端口组内的上行参考信号端口可以相干传输,不同上行参考信号端口组的上行参考信号端口不进行相干传输。基站根据终端指示的上行参考信号端口间的相干传输信息确定上行参考信号端口间的相干传输关系,从而确定对码本中的预编码子集的限制(即只能从码本中对应于该上行参考信号端口间的相干传输关系的码字中选择预编码矩阵)。
方法三:假设可以相干传输的上行参考信号端口构成一个上行参考信号端口组,基站和终端约定终端将包含较多可以相干传输的上行参考信号端口的上行参考信号端口组映射到较小的上行参考信号端口序号上,包含较少上 行参考信号端口的上行参考信号端口组映射到较大的上行参考信号端口序号上。这样在基站配置了一个上行参考信号资源时,可以使用较少的比特映射上行参考信号端口相干传输信息。例如基站配置了一个上行参考信号资源,包含4个上行参考信号端口,则上行参考信号端口间的相干传输关系只包含以下几种:(1,1,1,1),(2,1,1),(2,2),(3,1),(4)则3比特就够了,其中(X1,X2,X3,X4)代表存在4个上行参考信号端口组,第一个组内包含X1个上行参考信号端口,第二个组内包含X2个上行参考信号端口,…,组内上行参考信号端口间是相干传输的,组间是非相干传输的。如果根据终端的传输能力进行限定,则需要的比特数更少。例如终端最多支持两个上行参考信号端口的相干传输,则只包含(1,1,1,1),(2,1,1),(2,2)三种情况,2比特指示就够了。
方法四:基站配置了多个上行参考信号资源,终端指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源。这一个上行参考信号资源的上行参考信号端口间的相干传输关系的具体指示方法可以为方法一到三。
方法五:基站配置了多个上行参考信号资源组,每个上行参考信号资源组包括一个或多个上行参考信号资源,指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源。这个上行参考信号资源的上行参考信号端口间的相干传输关系的具体指示方法可以为方法一或二或三。
方法六:基站配置了多个上行参考信号资源组,终端指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。这一个上行参考信号资源组的上行参考信号端口间的相干传输关系的具体指示方法可以为方法一或二或三。
方法七:包含至少以下信息中的一种或多种:
一个上行参考信号资源的全部上行参考信号端口可以相干传输;
一个上行参考信号资源的上行参考信号端口间不能相干传输;
多个上行参考信号资源间是否可以进行相干传输。
可选地,如果终端不向基站发送任何上行参考信号端口间的相干传输关 系,基站认为一个上行参考信号资源内的所有上行参考信号端口间都可以相干传输。
可选地,如果终端不向基站发送任何上行参考信号端口间的相干传输关系,基站认为所有的上行参考信号端口间都不能相干传输。
可选地,如果终端不向基站发送任何上行参考信号资源间的相干传输关系,基站认为不同的上行参考信号资源间不能相干传输。
步骤3中:基站接收终端发送的上行参考信号,确定上行传输的预编码矩阵,传输层数和选择的上行参考信号资源。
基站接收终端发送的上行参考信号,按照一定的准则确定上行传输的层数,预编码矩阵和上行参考信号资源。该准则可以为RSRP最大准则,吞吐量最大准则,考虑了用户间干扰的准则等。
如果基站只为终端配置了一个上行参考信号资源,则无需进行上行参考信号资源的选择。
如果基站为终端配置的每个上行参考信号资源只包含一个上行参考信号端口,则只需进行SRI的选择,无需进行预编码矩阵的选择。传输层数等于选择的上行参考信号资源数。
可选地,基站接收终端发送的上行参考信号端口间的相干传输信息。并基于该相干传输信息确定上行传输的层数、预编码矩阵和上行参考信号资源。具体地,基站在选择预编码矩阵的时候,只能基于终端发送的上行参考信号端口间的相干传输信息选择预编码矩阵,不能选择超出终端发送的上行参考信号端口间的相干传输范围的预编码矩阵。举例来说,基站配置的上行参考信号资源包含4个上行参考信号端口,终端指示只有第一个和第二个上行参考信号端口可以相干传输。则基站选择预编码矩阵时,只能从对应于总上行参考信号端口数为4,只有第一个和第二个上行参考信号端口可以相干传输的预编码矩阵中选择预编码矩阵。候选预编码矩阵中包含第一个上行参考信号端口和第二个上行参考信号端口不进行相干传输的预编码矩阵。其中,对应于某两个上行参考信号端口相干传输的预编码矩阵是指该预编码矩阵中对应于至少一层,该两个上行参考信号端口都存在非零值,即该两个上行参考信号端口可以同时传输属于同一层的数据。
可选地,基站为每个上行参考信号资源分别选择预编码矩阵。
可选地,基站遍历所有可能的上行参考信号资源同时传输的组合构成的集合,选择最优的预编码矩阵。其中一个上行参考信号资源同时传输的组合是指一个或多个上行参考信号资源同时传输。举例来说,基站配置了3个上行参考信号资源,则所有可能的上行参考信号资源同时传输的组合构成的集合为:{只有第一个上行参考信号资源发送上行参考信号,只有第二个上行参考信号资源发送上行参考信号,只有第三个上行参考信号资源发送上行参考信号,第一个和第二个上行参考信号资源发送上行参考信号,第一个和第三个上行参考信号资源发送上行参考信号,第二个和第三个上行参考信号资源发送上行参考信号,第一个、第二个和第三个上行参考信号资源发送上行参考信号}。具体的地,基站从同时传输的所有上行参考信号资源所包含的总的上行参考信号端口数对应的码本中选择预编码矩阵,或者,基站从同时传输的每个上行参考信号资源对应的码本中选择预编码矩阵,各个上行参考信号资源的预编码矩阵进行权值变换后组成整体的预编码矩阵。
可选地,基站遍历所有的上行参考信号资源组中每个上行参考信号资源组内所有可能的上行参考信号资源同时传输的组合构成的集合,选择一个上行参考信号资源组及其对应的上行参考信号资源和预编码矩阵,传输层数。
可选地,基站遍历每个上行参考信号资源组中最多选择一个上行参考信号资源对应的上行参考信号资源同时传输的组合构成的集合,选择最优的预编码矩阵。
步骤4中:基站向终端发送用于上行传输的SRI,TPMI,TRI指示。
如果基站为终端只配置了一个上行参考信号资源,则指示信息中无需包含SRI指示信息。
如果基站为终端配置了多个上行参考信号资源,则指示信息中需要包含SRI指示信息。SRI指示信息可以只指示一个上行参考信号资源,也可以指示多个上行参考信号资源。
如果基站为终端配置了多个上行参考信号资源,且每个上行参考信号资源只包含一个上行参考信号端口,则只需进行SRI的指示,无需进行预编码矩阵和TRI的指示。SRI对应的上行参考信号资源数等于数据层数。
SRI可以采用独立编码的方式。如果使用独立编码的方式,可以采用bitmap的方式,即一个比特对应一个上行参考信号资源,每个比特的一种状态表示选择了该上行参考信号资源,另一种状态表示不选择该上行参考信号资源。举例来说,基站配置了4个上行参考信号资源,则使用4比特进行上行参考信号资源指示,每个比特的状态1表示选择了该资源,状态0表示没有选择该资源。则1101表示选择了第1,2,4个资源。SRI也可以采用联合编码的方式。即遍历所有的上行参考信号资源选择组合,进行联合编码。仍以基站配置了4个上行参考信号资源为例,选择k个上行参考信号资源有
Figure PCTCN2018107212-appb-000013
种可能,总的上行参考信号资源选择可能数为
Figure PCTCN2018107212-appb-000014
则使用
Figure PCTCN2018107212-appb-000015
比特进行编码。当基站配置了多个上行参考信号资源组,终端最多只能从一个上行参考信号资源组中的一个上行参考信号资源与其他上行参考信号资源组的上行参考信号资源发送上行参考信号时,上行参考信号资源选择的组合数则小于遍历所有上行参考信号资源的组合的组合数。
为简便起见,下面以SRI指示了一个资源为例进行阐述,可以扩展到多个上行参考信号资源中的每个上行参考信号资源,或者多个上行参考信号资源联合指示的方式。
TPMI和TRI可以独立编码指示,也可以联合编码指示。如果独立编码,DCI中包含专门的区域用于指示TRI,另有一个专门的区域指示TPMI。
可选地,TPMI的编码状态数由TRI确定。即只针对对应于TRI的所有码字进行重新编号后指示TPMI。举例来说,如果一个上行参考信号资源包含4个上行参考信号端口。4个上行参考信号端口的码本在TRI=1,2,3,4时分别包含T1,T2,T3,T4个码字。若TRI=m,则上行预编码矩阵仅存在于TRI=m时对应的所有码字中,则TPMI的一个编码状态对应于TRI=m时对应的一个码字。一种方式是TPMI的编码比特数由TRI决定,例如使用log(Tm)个比特对TPMI进行编码。另一种方式是TPMI的编码比特数由各个可能的TRI所对应的最多码字个数决定,例如用max log(Tm)个比特对TPMI进行编码,如果编码比特数对应的状态多于TRI=m对应的码字数,则多余的状态为预留的状态。
可选地,对应于步骤五,基站根据终端发送的上行参考信号端口间的相 干传输信息确定预编码矩阵的搜索范围。TPMI的编码状态数由TRI和终端发送的上行参考信号端口间的相干传输信息决定。TPMI的编码状态数为与TRI对应的,同时对应于终端发送的上行参考信号端口间的相干传输关系的预编码矩阵数。一种方式是TPMI的编码比特数由TRI和终端发送的上行参考信号端口间的相干传输信息决定,例如TRI=m时,对应于终端发送的上行参考信号端口间的相干传输关系的预编码矩阵的个数为Sm,则使用log(Sm)个比特对TPMI进行编码。另一种方式是TPMI的编码比特数由终端发送的上行参考信号端口间的相干传输信息条件下各个可能的TRI所对应的最多码字个数决定,例如用max log(Sm)个比特对TPMI进行编码,如果编码比特数对应的状态多于TRI=m对应的码字数,则多余的状态为预留的状态。
TRI的独立编码比特数由TRI的所有可能取值决定。一种方式为TRI的所有可能取值由上行参考信号资源配置的上行参考信号端口数确定。例如TRI的所有可能取值为小于等于上行参考信号资源所包含的上行参考信号端口数的所有正整数。一种方式为TRI的所有可能取值由上行参考信号资源配置的上行参考信号端口数和终端所支持的最大传输流数决定,即TRI的所有可能取值为小于等于上行参考信号资源所包含的上行参考信号端口数和终端所支持的最大传输流数的最小值的所有正整数。
TPMI和TRI可以联合编码指示。
当TPMI和TRI联合编码时,总的有效编码状态数为所有的TRI对应的所有可能的预编码矩阵的个数之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。总的比特数为
可选地,对应于步骤五,基站根据终端发送的上行参考信号端口间的相干传输信息确定预编码矩阵的搜索范围。TPMI和TRI联合编码的有效编码状态数等于所有的TRI可能取值对应的与终端发送的上行参考信号端口间的相干传输关系相对应的预编码矩阵之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。
SRI和TPMI,TRI也可以进行联合编码指示。总的有效编码状态数可以为所有的上行参考信号资源对应的所有的TRI对应的所有可能的预编码矩阵的个数之和。或者,总的有效编码状态数可以为所有可能的上行参考信号资 源同时传输的组合构成的集合对应的所有的TRI对应的所有可能的预编码矩阵的个数之和。如果编码比特数对应的状态多于有效编码状态数,则多余的状态为预留的状态。
可选地,基站针对选择的上行参考信号资源分别指示TPMI和TRI。
可选地,基站针对选择的上行参考信号资源联合指示TPMI和TRI。
可选地,基站进行上行参考信号资源组的指示。该指示也可以独立编码或与其他信息联合编码。
本步骤中的TPMI,TRI,SRI,上行参考信号资源组的编码方式需要基站侧与终端侧进行提前约定。
步骤5中:终端确定上行传输的TPMI和数据流数。
终端接收基站发送的SRI或TPMI和TRI,或TPMI,TRI和SRI指示信息,可选地,还包含上行参考信号资源组指示信息,确定上行传输的预编码矩阵,传输流数和使用的天线。
其中进行上行传输使用的天线使用基站指示的上行参考信号资源对应的上行参考信号端口,各个上行参考信号端口的预编码矩阵根据TPMI确定。
本公开的上述实施例中,给出了关于终端与基站关于发送通路的相干传输能力的交互信息的发送接收方案,以及基于该交互方案的资源配置、上行接入准许等信令的交互方案,可以使得基站和终端具有相同的上行参考信号资源上行参考信号端口相干传输关系的假设,从而保证上行传输的性能。
如图5所示,本公开的一些实施例还提供一种上行传输的配置方法,包括:
步骤51,为终端配置上行参考信号资源的配置信息;
步骤52,接收终端根据基站配置的配置信息发送的上行参考信号;
步骤53,向终端发送基站确定的用于上行传输的指示信息。
其中,步骤52之前,包括:接收终端发送的终端的相干传输能力信息。
其中,步骤51包括:
根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
其中,步骤52之前,还包括:向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
其中,所述相干传输关系信息根据所述相干传输能力信息确定。
其中,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
其中,终端的相干传输能力信息为终端支持的天线相干传输能力。
其中,所述天线为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
其中,终端的相干传输能力信息包括天线分组信息,其中每个天线组内的天线可以相干传输,不同天线组内的天线不能相干传输。
其中,终端的相干传输能力信息还包括总的天线数目信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
其中,所述相干传输关系信息中上行参考信号端口的分组信息具体包括:
1)所述上行参考信号资源的配置信息包含一个上行参考信号资源或多个上行参考信号资源时,其中至少一个上行参考信号资源只有部分上行参考信号端口可以相干传输;或者
2)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的所有上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输;或者
3)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信 号资源间可以相干传输;或者
4)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号资源内的部分上行参考信号端口进行相干传输;或者
5)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内的任意两个上行参考信号资源不能同时用于上行参考信号的发送,且同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系;或者
6)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,该多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号数及资源组内的上行参考信号端口间的相干传输关系,且不能同时用于上行参考信号的发送。
其中,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端口数。
其中,所述相干传输关系信息包括:
11)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述相干传输关系信息为其中一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系应用到所有的上行参考信号资源;或者
15)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,每个上行参考信号资源组包括一个或多个上行参考信号资源,所述相干传输关系信息指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源;或者
16)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,所述相干传输关系信息指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。
其中,所述相干传输关系信息为所述上行参考信号端口与所述天线组之 间的映射关系;或者,
所述相干传输关系信息为所述上行参考信号资源与所述天线组之间的映射关系。
其中,在接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,步骤51还可以具体包括:直接向终端发送为终端配置的上行参考信号资源的配置信息。
其中,步骤52之前,还包括:接收终端发送的上行参考信号间的相干传输信息。
其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
其中,步骤53中,所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
其中,根据所述相干传输关系确定上行传输的指示信息。
该方法是基站侧的方法,与上述图1-图4终端侧的方法对应,上述图1-图4所示实施例中所有涉及基站的实现方式均适用于该实施例中,也能达到相同的技术效果。
本公开的一些实施例还提供一种终端,包括:
获取模块,用于获取基站为终端配置的上行参考信号资源的配置信息;
发送模块,用于根据所述上行参考信号资源的配置信息发送上行参考信号;
接收模块,用于终端接收基站确定的上行传输的指示信息;
所述发送模块,还用于根据所述指示信息进行上行传输。
其中,所述发送模块还用于向基站发送终端的相干传输能力信息。
其中,所述接收模块具体用于接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
其中,所述接收模块还用于接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述发送模块具体用于根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
其中,所述基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系与终端的相干传输能力之间的映射关系是预定义的。
其中,所述发送模块还用于根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,所述发送模块还用于向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。
其中,所述发送模块还用于根据所述相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
其中,所述接收模块具体用于:所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线;或者
根据所述指示信息和所述相干传输关系,确定上行传输的预编码矩阵、传输流数和使用的天线。
该终端实现的是上述图1-图4所示的方法,上述图1-4所示方法的实施 例全部适用于该终端的实施例中,也能达到相同的技术效果。
本公开的一些实施例还提供一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器用于读取存储器中的程序,控制收发机执行下列过程:
获取基站为终端配置的上行参考信号资源的配置信息;
根据所述上行参考信号资源的配置信息发送上行参考信号;
终端接收基站确定的上行传输的指示信息;
根据所述指示信息进行上行传输。
该终端的结构图如图6所示。总线架构可以包括任意数量的互联的总线和桥,具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
处理器负责管理总线架构和通常的处理,存储器可以存储处理器在执行操作时所使用的数据。
本公开的一些实施例还提供一种基站,包括:
配置模块,用于为终端配置上行参考信号资源的配置信息;
接收模块,用于接收终端根据基站配置的配置信息发送的上行参考信号;
发送模块,用于向终端发送基站确定的用于上行传输的指示信息。
其中,所述接收模块还用于接收终端发送的终端的相干传输能力信息。
其中,所述配置模块具体用于根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
其中,所述发送模块还用于向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
其中,所述相干传输关系与终端的相干传输能力上行参考信号端口之间的映射关系是预定义的。
其中,所述发送模块还用于直接向终端发送为终端配置的上行参考信号资源的配置信息。
其中,所述接收模块还用于接收终端发送的上行参考信号间的相干传输信息。
其中,所述发送模块具体用于向终端发送根据上行参考信号确定的用于上行传输的指示信息,所述指示信息中包括:上行调度请求指示SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
其中,所述发送模块还用于根据所述相干传输关系确定上行传输的指示信息。
该基站的实施例也能实现上述图1-图4方法中所在涉及基站的实现流程,上述图1-图4所示的方法的实现方式均适用于该基站的实施例中,也能达到相同的技术效果。
本公开的一些实施例还提供一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器用于读取存储器中的程序,控制收发机执行下列过程:
为终端配置上行参考信号资源的配置信息;
接收终端根据基站配置的配置信息发送的上行参考信号;
向终端发送基站确定的用于上行传输的指示信息。
该基站的结构图如图6所示。总线架构可以包括任意数量的互联的总线和桥,具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
处理器负责管理总线架构和通常的处理,存储器可以存储处理器在执行操作时所使用的数据。
本公开的一些实施例还提供一种计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现如上所述的方法。
可选地,终端的一个天线对应一个上行参考信号端口。可选地,基于终端的一个天线对应一个上行参考信号端口的假设,基站根据终端的相干传输能力信息确定上行参考信号端口间的相干传输关系。可选地,基于终端的一 个天线对应一个上行参考信号端口的假设,基站根据终端的相干传输能力信息确定上行参考信号资源的配置。可选地,基于终端的一个天线对应一个上行参考信号端口的假设,预先约定终端的相干传输能力信息和上行参考信号端口间的相干传输关系。
另外,需要说明的是,本实施例中上述终端可以是本公开实施例中方法实施例中任意实施方式的终端,本公开实施例中方法实施例中终端的任意实施方式都可以被本实施例中的上述终端所实现,以及达到相同的有益效果,此处不再赘述。
在本公开实施例中,所涉及到的设备包括发送设备(即基站)和接收设备(即终端),发送设备与接入该发送设备的接收设备之间可以进行下行传输和上行接收。
其中,基站可以是相关技术的设备中的基站或其他类型传输点设备,终端可以是用户设备。当然不也限于上述两种设备,比如基站也可以是能够实现对其他终端进行配置操作的终端。也可以认为一个基站包含多个网络站点。网络节点可以只包括射频(如射频拉远单元(Remote Radio Unit,简称RRU))或者包括基带和射频两部分(如有源天线(Active antenna))。网络节点可以只包括基带(如基带单元(Baseband Unit,简称BBU));也可以完全不包括任何空口层的数字/射频功能,只负责高层信号处理,把空口层的基带处理都放到有源天线。也存在其他多种网络实现可能。
终端也可称为用户设备(User Equipment,简称UE),或者可称之为Terminal、移动台(Mobile Station,简称MS)、移动终端(Mobile Terminal)等,该终端可以经无线接入网(Radio Access Network,简称RAN)与一个或多个核心网进行通信,例如,终端可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等,例如,终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语音和/或数据。本公开实施例中的终端还可以是设备与设备(Device to Device,简称D2D)终端或者机器与机器(Machine to Machine,简称M2M)终端。在本公开的实施例中对网络设备和终端不做具体限定。
在本公开的实施例中,所涉及到的预编码矩阵可以是一个预编码矩阵或 向量,也可以是多个预编码向量,也可以是一个波束,也可以是多个波束,在本公开的一些实施例中对其具体几个波束和预编码不做限制。
在本公开所提供的几个实施例中,应该理解到,所揭露方法和装置,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
另外,在本公开各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理包括,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本公开各个实施例所述收发方法的部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述是本公开的一些实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。

Claims (80)

  1. 一种上行传输方法,包括:
    获取基站为终端配置的上行参考信号资源的配置信息;
    根据所述上行参考信号资源的配置信息发送上行参考信号;
    接收基站确定的上行传输的指示信息;
    根据所述指示信息进行上行传输。
  2. 根据权利要求1所述的上行传输方法,其中,根据所述上行参考信号资源的配置信息发送上行参考信号之前,包括:
    向基站发送终端的相干传输能力信息。
  3. 根据权利要求2所述的上行传输方法,其中,获取基站为终端配置的上行参考信号资源的配置信息的步骤包括:
    接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
  4. 根据权利要求2所述的上行传输方法,其中,根据所述上行参考信号资源的配置信息发送上行参考信号之前还包括:
    接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
  5. 根据权利要求4所述的上行传输方法,其中,根据所述上行参考信号资源的配置信息发送上行参考信号,包括:
    根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
  6. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。
  7. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
  8. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息 根据所述相干传输能力信息确定。
  9. 根据权利要求4所述的上行传输方法,其中,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
  10. 根据权利要求2所述的上行传输方法,其中,终端的相干传输能力信息为终端支持的天线相干传输能力。
  11. 根据权利要求10所述的上行传输方法,其中,所述天线为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
  12. 根据权利要求4所述的上行传输方法,其中,所述基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系与终端的相干传输能力之间的映射关系是预定义的。
  13. 根据权利要求2所述的上行传输方法,其中,终端的相干传输能力信息包括天线分组信息,其中每个天线组内的天线可以相干传输,不同天线组内的天线不能相干传输。
  14. 根据权利要求13所述的上行传输方法,其中,所述天线分组信息中包含天线组数目信息和每个天线组包含的天线数的信息。
  15. 根据权利要求13所述的上行传输方法,其中,终端的相干传输能力信息还包括总的天线数目信息。
  16. 根据权利要求2所述的上行传输方法,其中,终端的相干传输能力信息包括终端至少部分天线可以相干传输的信息或终端所有天线都不能相干传输的信息。
  17. 根据权利要求2所述的上行传输方法,其中,终端的相干传输能力信息包括终端最大或最小可以相干传输的天线数信息。
  18. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
  19. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
  20. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
  21. 根据权利要求18所述的上行传输方法,其中,所述相干传输关系信息中上行参考信号端口的分组信息具体包括:
    1)所述上行参考信号资源的配置信息包含一个上行参考信号资源或多个上行参考信号资源时,至少一个上行参考信号资源只有部分上行参考信号端口可以相干传输;或者
    2)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的所有上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输;或者
    3)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间可以相干传输;或者
    4)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号资源内的部分上行参考信号端口进行相干传输;或者
    5)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内的任意两个上行参考信号资源不能同时用于上行参考信号的发送,且同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系;或者
    6)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,该多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号数及资源组内的上行参考信号端口间的相干传输关系,且不能同时用于上行参考信号的发送。
  22. 根据权利要求1所述的上行传输方法,其中,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端 口数。
  23. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息包括:
    1)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述相干传输关系信息为其中一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系应用到所有的上行参考信号资源;或者
    2)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,每个上行参考信号资源组包括一个或多个上行参考信号资源,所述相干传输关系信息指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源;或者
    3)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,所述相干传输关系信息指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。
  24. 根据权利要求4所述的上行传输方法,其中,所述相干传输关系信息为所述上行参考信号端口与所述天线组之间的映射关系;或者,
    所述相干传输关系信息为所述上行参考信号资源与所述天线组之间的映射关系。
  25. 根据权利要求2所述的上行传输方法,其中,在根据所述上行参考信号资源的配置信息发送上行参考信号之前,还包括:
    根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
    根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
  26. 根据权利要求4所述的上行传输方法,其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:
    所述上行传输的指示信息包含上行参考信号资源指示SRI,或者发射预 编码矩阵指示TPMI和发送秩指示TRI,或者TPMI、TRI和SRI的指示信息;
    根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
  27. 根据权利要求1所述的上行传输方法,其中,接收基站确定的上行传输的指示信息之前,还包括:
    向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。
  28. 根据权利要求27所述的上行传输方法,其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
  29. 根据权利要求27所述的上行传输方法,其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
  30. 根据权利要求27所述的上行传输方法,其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
  31. 根据权利要求27所述的上行传输方法,其中,发送上行参考信号,还包括:
    根据所述相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
  32. 根据权利要求27所述的上行传输方法,其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:
    所述上行传输的指示信息包含上行参考信号资源指示SRI,或者发射预编码矩阵指示TPMI和发送秩指示TRI,或者TPMI、TRI和SRI的指示信息;
    根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线。
  33. 根据权利要求4或27所述的上行传输方法,其中,终端接收基站确定的上行传输的指示信息,进行上行传输的步骤包括:
    根据所述指示信息和所述相干传输关系,确定上行传输的预编码矩阵、传输流数和使用的天线。
  34. 一种上行传输的配置方法,包括:
    为终端配置上行参考信号资源的配置信息;
    接收终端根据基站配置的配置信息发送的上行参考信号;
    向终端发送基站确定的用于上行传输的指示信息。
  35. 根据权利要求34所述的上行传输的配置方法,其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,包括:
    接收终端发送的终端的相干传输能力信息。
  36. 根据权利要求35所述的上行传输的配置方法,其中,为终端配置上行参考信号资源的配置信息的步骤包括:
    根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
  37. 根据权利要求35所述的上行传输的配置方法,其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
    向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
  38. 根据权利要求35所述的上行传输的配置方法,其中,所述相干传输关系信息为每个上行参考信号资源内的上行参考信号端口间的相干传输关系信息。
  39. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息包含在所述上行参考信号资源的配置信息中,或者,所述相干传输关系信息是一个单独指示的信息。
  40. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息根据所述相干传输能力信息确定。
  41. 根据权利要求37至40任一项所述的上行传输的配置方法,其中,所述上行传输的指示信息及其指示的内容根据所述相干传输关系及所述基站接收到的上行参考信号确定。
  42. 根据权利要求35所述的上行传输的配置方法,其中,终端的相干传输能力信息为终端支持的天线相干传输能力。
  43. 根据权利要求42所述的上行传输的配置方法,其中,所述天线为:物理天线、发送通路、收发单元TXRU或者上行参考信号端口。
  44. 根据权利要求35所述的上行传输的配置方法,其中,终端的相干传输能力信息包括天线分组信息,其中每个天线组内的天线可以相干传输,不同天线组内的天线不能相干传输。
  45. 根据权利要求44所述的上行传输的配置方法,其中,终端的相干传输能力信息还包括总的天线数目信息。
  46. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
  47. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息具体包括最大或最小可以相干传输的上行参考信号端口数信息。
  48. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息包括同一个上行参考信号资源内的上行参考信号至少部分端口可以相干传输的信息或所有端口都不能相干传输的信息。
  49. 根据权利要求46所述的上行传输的配置方法,其中,所述相干传输关系信息中上行参考信号端口的分组信息具体包括:
    1)所述上行参考信号资源的配置信息包含一个上行参考信号资源或多个上行参考信号资源时,其中至少一个上行参考信号资源只有部分上行参考信号端口可以相干传输;或者
    2)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的所有上行参考信号端口可以相干传输,不同上行参考信号资源间不能相干传输;或者
    3)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,每个上行参考信号资源内的上行参考信号端口可以相干传输,部分上行参考信号资源间可以相干传输;或者
    4)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,一个上行参考信号资源内的部分上行参考信号端口可以与另一个上行参考信号 资源内的部分上行参考信号端口进行相干传输;或者
    5)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述多个上行参考信号资源被分成一些资源组,同一资源组内的所有上行参考信号资源具有相同的上行参考信号端口数,同一资源组内的任意两个上行参考信号资源不能同时用于上行参考信号的发送,且同一资源组内任意两个上行参考信号资源具有相同的上行参考信号资源内的上行参考信号端口间的相干传输关系;或者
    6)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,该多个上行参考信号资源被分成一些资源组,任意两个资源组包含相同的上行参考信号数及资源组内的上行参考信号端口间的相干传输关系,且不能同时用于上行参考信号的发送。
  50. 根据权利要求34所述的上行传输的配置方法,其中,所述配置信息包括:上行参考信号资源的数量以及每个上行参考信号资源包括的上行参考信号端口数。
  51. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息包括:
    1)所述上行参考信号资源的配置信息包含多个上行参考信号资源时,所述相干传输关系信息为其中一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系应用到所有的上行参考信号资源;或者
    2)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,每个上行参考信号资源组包括一个或多个上行参考信号资源,所述相干传输关系信息指示一个上行参考信号资源的上行参考信号端口间的相干传输关系,该关系可以应用到该上行参考信号资源所在上行参考信号资源组内的所有上行参考信号资源;或者
    3)所述上行参考信号资源的配置信息包含多个上行参考信号资源组时,所述相干传输关系信息指示一个上行参考信号资源组内的上行参考信号端口间的相干传输关系,该关系可以应用到所有的上行参考信号资源组。
  52. 根据权利要求37所述的上行传输的配置方法,其中,所述相干传输关系信息为所述上行参考信号端口与所述天线组之间的映射关系;或者,
    所述相干传输关系信息为所述上行参考信号资源与所述天线组之间的映射关系。
  53. 根据权利要求35或36所述的上行传输的配置方法,其中,在接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
    根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
    根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
  54. 根据权利要求34所述的上行传输的配置方法,其中,为终端配置上行参考信号资源的配置信息的步骤包括:
    直接向终端发送为终端配置的上行参考信号资源的配置信息。
  55. 根据权利要求54所述的上行传输的配置方法,其中,接收终端根据基站配置的配置信息发送的上行参考信号之前,还包括:
    接收终端发送的上行参考信号间的相干传输信息。
  56. 根据权利要求55所述的上行传输的配置方法,其中,所述相干传输关系信息具体包括上行参考信号端口的分组信息,其中每个上行参考信号端口组内的上行参考信号端口可以进行相干传输,不同上行参考信号端口组内的上行参考信号端口不进行相干传输。
  57. 根据权利要求53所述的上行传输的配置方法,其中,向终端发送基站确定的上行参考信号资源的指示信息的步骤包括:
    所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
  58. 根据权利要求37、53、55或56所述的上行传输的配置方法,其中,根据所述相干传输关系确定上行传输的指示信息。
  59. 一种终端,包括:
    获取模块,用于获取基站为终端配置的上行参考信号资源的配置信息;
    发送模块,用于根据所述上行参考信号资源的配置信息发送上行参考信 号;
    接收模块,用于接收基站确定的上行传输的指示信息;
    所述发送模块,还用于根据所述指示信息进行上行传输。
  60. 根据权利要求59所述的终端,其中,所述发送模块还用于向基站发送终端的相干传输能力信息。
  61. 根据权利要求60所述的终端,其中,所述接收模块具体用于接收基站根据终端的相干传输能力信息确定的上行参考信号资源的配置信息。
  62. 根据权利要求61所述的终端,其中,所述接收模块还用于接收所述基站发送的所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
  63. 根据权利要求62所述的终端,其中,所述发送模块具体用于根据所述上行参考信号资源的配置信息和所述相干传输关系信息确定上行参考信号资源的配置信息包含的每个上行参考信号端口对应的发送天线,在所述天线上发送上行参考信号。
  64. 根据权利要求60所述的终端,其中,所述基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系与终端的相干传输能力之间的映射关系是预定义的。
  65. 根据权利要求60所述的终端,其中,所述发送模块还用于根据终端的相干传输能力及上行参考信号资源的配置信息确定基站为终端配置的上行参考信号资源所包含的上行参考信号端口间的相干传输关系,所述相干传输关系与终端的相干传输能力之间的映射关系是预定义的;
    根据所述上行参考信号资源的配置信息发送上行参考信号,包括:根据相干传输关系确定发送上行参考信号使用的天线,其中,使用可以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
  66. 根据权利要求59所述的终端,其中,所述发送模块还用于向基站发送基站为终端配置的上行参考信号资源包含的上行参考信号端口间的相干传输关系信息。
  67. 根据权利要求66所述的终端,其中,所述发送模块还用于根据所述相干传输关系,确定传输各个上行参考信号使用的发送天线,其中,使用可 以相干传输的天线在可以相干传输的上行参考信号端口上发送上行参考信号。
  68. 根据权利要求66所述的终端,其中,所述接收模块具体用于:
    所述上行传输的指示信息包含SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息;根据所述指示信息,确定上行传输的预编码矩阵、传输流数和使用的天线;或者
    根据所述指示信息和所述相干传输关系,确定上行传输的预编码矩阵、传输流数和使用的天线。
  69. 一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其中,
    所述处理器执行所述计算机程序时实现如权利要求1至33中任一项所述的上行传输方法中的步骤。
  70. 一种基站,其中,包括:
    配置模块,用于为终端配置上行参考信号资源的配置信息;
    接收模块,用于接收终端根据基站配置的配置信息发送的上行参考信号;
    发送模块,用于向终端发送基站确定的用于上行传输的指示信息。
  71. 根据权利要求70所述的基站,其中,所述接收模块还用于接收终端发送的终端的相干传输能力信息。
  72. 根据权利要求71所述的基站,其中,所述配置模块具体用于根据终端上报的相干传输能力信息确定上行参考信号资源的配置信息。
  73. 根据权利要求72所述的基站,其中,所述发送模块还用于向终端发送所述上行参考信号资源所包含的上行参考信号端口间的相干传输关系信息。
  74. 根据权利要求70所述的基站,其中,所述基站为终端配置的上行参考信号资源包含的上行参考信号端口间相干传输关系与终端的相干传输能力上行参考信号端口之间的映射关系是预定义的。
  75. 根据权利要求70所述的基站,其中,所述发送模块还用于直接向终端发送为终端配置的上行参考信号资源的配置信息。
  76. 根据权利要求70所述的基站,其中,所述接收模块还用于接收终端发送的上行参考信号端口间的相干传输信息。
  77. 根据权利要求76所述的基站,其中,所述发送模块具体用于向终端 发送根据上行参考信号确定的用于上行传输的指示信息,所述指示信息中包括:上行调度请求指示SRI,或者TPMI和TRI,或者TPMI、TRI和SRI的指示信息。
  78. 根据权利要求73,74或76所述的基站,其中,所述发送模块还用于根据所述相干传输关系确定上行传输的指示信息。
  79. 一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其中,
    所述处理器执行所述计算机程序时实现如权利要求34至58中任一项所述的上行传输的配置方法中的步骤。
  80. 一种计算机可读存储介质,其上存储有计算机程序,其中,该程序被处理器执行时实现如权利要求1至33中任一项所述的方法,或者如权利要求34至58中任一项所述的方法。
PCT/CN2018/107212 2017-09-30 2018-09-25 一种上行传输、配置方法、终端及基站 Ceased WO2019062681A1 (zh)

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