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WO2023030019A1 - Procédé et appareil de communication, et support de stockage lisible par ordinateur - Google Patents

Procédé et appareil de communication, et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2023030019A1
WO2023030019A1 PCT/CN2022/113231 CN2022113231W WO2023030019A1 WO 2023030019 A1 WO2023030019 A1 WO 2023030019A1 CN 2022113231 W CN2022113231 W CN 2022113231W WO 2023030019 A1 WO2023030019 A1 WO 2023030019A1
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WIPO (PCT)
Prior art keywords
path loss
reference signal
information
communication method
network
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Ceased
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PCT/CN2022/113231
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English (en)
Chinese (zh)
Inventor
王化磊
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Priority to JP2024513493A priority Critical patent/JP2024532447A/ja
Publication of WO2023030019A1 publication Critical patent/WO2023030019A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/347—Path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the technical field of communication, and in particular to a communication method and device, and a computer-readable storage medium.
  • the terminal device obtains the path loss by measuring the downlink reference signal, and then according to the path loss and other information , to obtain the uplink transmit power.
  • NR New Radio
  • the present application provides a communication method and device, and provides a scheme of how to perform uplink transmission when a terminal device communicates with a network device that only supports a receiving function.
  • a communication method includes: receiving network information, where the network information includes path loss indication information, and the path loss indication information is used to determine path loss; performing uplink transmission according to the network information.
  • the path loss indication information includes one or more of the following: path loss value, reference signal received power, path loss offset, and reference signal received power offset.
  • the receiving network information includes: receiving at least one of radio resource control RRC signaling, medium access control MAC signaling and downlink control information, the RRC signaling and the MAC signaling include the network information, the downlink control information includes or indicates the network information.
  • the MAC signaling further includes one or more of the following: an identifier of a dedicated logical channel, and the identifier of the dedicated logical channel is used to indicate that the MAC signaling includes the network information; a cell identifier; a partial bandwidth Identifier; power control adjustment state index.
  • the identifier of the dedicated logical channel is used to indicate one or more of the following: the MAC signaling includes the network information for the physical uplink shared channel PUSCH, and the MAC signaling includes the physical uplink control channel
  • the network information of the PUCCH and the MAC signaling include the network information for sounding reference information.
  • the MAC signaling is a MAC random access response.
  • the downlink control information is user-specific non-scheduled downlink control information
  • the value of the predefined field in the user-specific non-scheduled downlink control information is the first value
  • the user-specific non-scheduled downlink control information includes the network information.
  • the downlink control information uses one or more of the following fields to indicate the network information:
  • Precoding information field Precoding information field; layer number field; hybrid automatic repeat process number field; antenna port field; modulation and coding scheme field; time domain resource allocation field; frequency domain resource allocation field; sounding reference signal request field; demodulation reference signal sequence initialization field.
  • the downlink control information is user-specific scheduled downlink control information, and the user-specific scheduled downlink control information includes the network information.
  • the downlink control information is public downlink control information
  • the public downlink control information include the network information.
  • the method further includes: receiving high-level configuration information; determining a field corresponding to the terminal device in the public downlink control information according to the high-level configuration information; and acquiring the network information in the field corresponding to the terminal device.
  • the downlink control information is in DCI format 1_0, and the downlink control information is scrambled by random access wireless network temporary identifiers or information B wireless network temporary identifiers.
  • the reserved bits in the downlink control information indicate the network information, or the indication information in the downlink control information indicates that the random access response scheduled by the downlink control information includes the network information.
  • the downlink control information further includes invalid indication information, and the invalid indication information indicates to ignore the network information.
  • the field bearing the invalid indication information is different from the field bearing the network information, or the invalid indication information is a preset code point value of the field bearing the network information.
  • the invalidation indication information is a preset value of a transmission power control field in the downlink control information.
  • the method further includes: calculating the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is less than a first preset threshold, then according to the reference The signal receiving power determines the sending power; or, if the first path loss is greater than or equal to the first preset threshold, determining the sending power according to the path loss.
  • the method further includes: calculating the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than or equal to a first preset threshold, then according to the path loss reference signal Determine the transmit power with reference to the signal received power; or, if the first path loss is smaller than the first preset threshold, determine the transmit power according to the path loss.
  • the method further includes: calculating the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is smaller than the path loss, then according to the reference signal of the path loss reference signal The receiving power determines the sending power; or, if the first path loss is greater than or equal to the path loss, determining the sending power according to the path loss.
  • the method further includes: calculating the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than or equal to the path loss, then according to the reference signal of the path loss reference signal The signal receiving power determines the sending power; or, if the first path loss is smaller than the path loss, determining the sending power according to the path loss.
  • the path loss indication information includes a power control adjustment state index.
  • the path loss indication information further includes applicable indication information, where the applicable indication information indicates whether the path loss indication information is applicable to the signal or signal associated with the power control adjustment state index.
  • the path loss indication information is associated with PUSCH, PUCCH or sounding reference signal.
  • the path loss indication information further includes a signal transmission power or a signal transmission power offset value.
  • the value of the power control adjustment state index is 1.
  • the path loss indication information includes at least two reference signal transmission powers or at least two reference signal transmission power offsets.
  • the at least two reference signal transmission powers or the at least two reference signal transmission power offsets are carried by the same signaling, or the at least two reference signal transmission powers or the at least two reference signal transmission powers The signal transmission power offset is carried by different signaling.
  • the at least two reference signal transmission powers or the at least two reference signal transmission power offsets are associated with the same reference signal, or the at least two reference signal transmission powers or the at least two reference signal transmission powers The signal transmission power offsets are associated with different reference signals.
  • the at least two reference signal transmission powers include a first transmission power and a second transmission power, and the value of the first transmission power is the largest; the at least two reference signal transmission power offsets include the first transmission power A power offset and a second transmit power offset, the power offset of the first transmit power offset is the smallest.
  • performing the uplink transmission according to the network information includes: acquiring the reference signal received power of the path loss reference signal; if the reference signal received power of the path loss reference signal is less than a second preset threshold, using the The first transmit power or the first transmit power offset calculates the path loss, and performs uplink transmission according to the calculated path loss; or, if the reference signal received power of the path loss reference signal is greater than or equal to the second preset If the threshold is set, the path loss is calculated by using the second transmit power or the second transmit power offset, and uplink transmission is performed according to the calculated path loss.
  • performing the uplink transmission according to the network information includes: obtaining the reference signal received power of the path loss reference signal; if the reference signal received power of the path loss reference signal is greater than or equal to a second preset threshold, using the Calculate the path loss with the first transmit power or the first transmit power offset, and perform uplink transmission according to the calculated path loss; or, if the reference signal received power of the path loss reference signal is less than the second predetermined If the threshold is set, the path loss is calculated by using the second transmit power or the second transmit power offset, and uplink transmission is performed according to the calculated path loss.
  • the network information is applicable to the transmission of at least one of the following information: PUCCH, PUSCH, sounding reference signal, preamble in message 1, and preamble in message A.
  • the PUSCH includes a configured and scheduled PUSCH, a dynamically scheduled PUSCH, a PUSCH in message 3, and a PUSCH in message A.
  • a communication method which is applied to a network device, and includes: determining network information, the network information including path loss indication information, and the path loss indication information is used to determine path loss; sending the network information.
  • the sending network information includes: sending at least one of RRC signaling, MAC signaling, and downlink control information, where the RRC signaling and the MAC signaling include the network information, and the downlink control information Include or indicate the network information.
  • the downlink control information is public downlink control information.
  • the public downlink control information includes the network information.
  • the method further includes: sending high-level configuration information, the high-level configuration information is used to determine the field corresponding to the terminal device in the public downlink control information, and the field corresponding to the terminal device carries the network information .
  • a communication device in a third aspect, includes: a receiving module, configured to receive network information, the network information includes path loss indication information, and the path loss indication information is used to determine path loss; an uplink transmission module , for performing uplink transmission according to the network information.
  • a communication device in a fourth aspect, includes: a configuration module, configured to determine network information, where the network information includes path loss indication information, and the path loss indication information is used to determine path loss; a sending module, Used to send the network information.
  • a computer-readable storage medium on which a computer program is stored, and the computer program is run by a processor to execute any one of the methods provided in the first aspect or the second aspect.
  • a communication device including a memory and a processor, where a computer program operable on the processor is stored in the memory, and the processor runs the computer program to execute any one of the methods provided in the first aspect.
  • a communication device including a memory and a processor, and the memory stores a computer program that can run on the processor. method.
  • a computer program product on which a computer program is stored, and the computer program is run by a processor to execute any one of the methods provided in the first aspect or the second aspect.
  • a ninth aspect provides a communication system, including the above-mentioned terminal device and the above-mentioned network device.
  • the embodiment of the present application further provides a chip (or a data transmission device), on which a computer program is stored, and when the computer program is executed by the chip, the steps of the above method are implemented.
  • the network device can send network information including path loss indication information to the terminal device, and the path loss indication information is used to determine the path loss, and the terminal device can receive the network information and perform uplink transmission based on the network information, thereby providing a A scheme for performing uplink transmission when a terminal device communicates with a network device that only supports a receiving function.
  • sending network information through a network device with a downlink sending function can enable the terminal device to know the path loss, and then perform uplink transmission according to the network information to ensure that uplink data can be sent with reliable transmission power and achieve transmission reliability.
  • the path loss indication information includes one or more of the following: path loss value, reference signal received power, path loss offset, and reference signal received power offset; the path loss indication information may also include power Control and adjust the state index; the path loss indication information may also include at least two reference signal transmission powers or at least two reference signal transmission power offsets.
  • the terminal device can directly determine the path loss; through other specific content in the above path loss indication information, such as reference signal received power, path loss offset, etc., The terminal equipment can determine the path loss through calculation, which realizes the flexibility of path loss indication.
  • FIG. 1 is an interactive flowchart of a communication method provided in an embodiment of the present application
  • FIG. 2 is an interactive flow chart of another communication method provided by the embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a communication device provided in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another communication configuration provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application.
  • the communication systems to which the embodiments of the present application are applicable include but are not limited to long-term evolution (Long Term Evolution, LTE) systems, fifth-generation (5th-generation, 5G) systems, NR systems, and future evolution systems or multiple communication fusion systems.
  • the 5G system may be a 5G system of a non-standalone network (Non-StandAlone, NSA) or a 5G system of a stand-alone network (StandAlone, SA).
  • the technical solution of the present application is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, vehicle-to-everything communication architecture and other architectures.
  • This application mainly relates to communication between terminal equipment and network equipment. in:
  • the network equipment in the embodiment of the present application may also be referred to as an access network equipment, for example, it may be a base station (Base Station, BS) (also referred to as a base station equipment), and the network equipment is a type of network equipment deployed on a wireless access network (Radio Access Network, RAN) is a device used to provide wireless communication functions.
  • BS Base Station
  • RAN Radio Access Network
  • equipment that provides base station functions in the second-generation (2nd-Generation, 2G) network includes base transceiver stations (Base Transceiver Station, BTS), and equipment that provides base station functions in the third-generation (3rd-Generation, 3G) network includes Node B (NodeB), the equipment that provides base station functions in the fourth-generation (4th-Generation, 4G) network includes evolved Node B (evolved NodeB, eNB), in wireless local area networks (Wireless Local Area Networks, WLAN),
  • the device that provides base station functions is the access point (Access Point, AP), the device that provides base station functions in NR next generation base station node (next generation Node Base station, gNB), and the node B (ng-eNB) that continues to evolve,
  • gNB and terminal devices use NR technology for communication
  • ng-eNB and terminal devices use Evolved Universal Terrestrial Radio Access (E-UTRA) technology for communication.
  • E-UTRA Evolved Universal Terrestria
  • the terminal equipment (terminal equipment) in the embodiment of the present application may refer to various forms of access terminals, subscriber units, subscriber stations, mobile stations, mobile stations (Mobile Station, MS), remote stations, remote terminals, mobile equipment, user Terminal, wireless communication device, user agent or user device.
  • the terminal equipment can also be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (Public Land Mobile Network, PLMN)
  • PLMN Public Land Mobile Network
  • a terminal device may also be called a user equipment (User Equipment, UE), a terminal, and the like.
  • the terminal device communicates with the above-mentioned network device that only supports the receiving function, there is currently no specific solution for how the terminal device performs uplink transmission with the network device.
  • the present application provides a method.
  • the network device can send network information including path loss indication information to the terminal device.
  • the path loss indication information is used to determine the path loss.
  • the terminal device can receive the network information and perform uplink transmission based on the network information, thereby providing A scheme for uplink transmission is provided when a terminal device communicates with a network device that only supports a receiving function.
  • sending network information through a network device with a downlink sending function can enable the terminal device to know the path loss, and then perform uplink transmission according to the network information to ensure that uplink data can be sent with reliable transmission power and achieve transmission reliability.
  • the method provided by the present application includes:
  • Step 101 The network device sends network information, the network information includes path loss indication information, and the path loss indication information is used to determine the path loss.
  • the terminal device receives network information.
  • the method further includes: the network device determines network information.
  • Step 102 The terminal device performs uplink transmission according to the network information.
  • the communication method may be implemented in the form of a software program, and the software program runs in a processor integrated in a chip or a chip module.
  • the method may also be implemented by combining software with hardware, which is not limited in this application.
  • the network device can send network information including path loss indication information to the terminal device, and the path loss indication information is used to determine the path loss, and the terminal device can receive the network information and perform uplink transmission based on the network information, thereby providing a A solution for uplink transmission when a terminal device communicates with a network device that only supports reception.
  • sending network information through a network device with a downlink sending function can enable the terminal device to know the path loss, and then perform uplink transmission according to the network information to ensure that uplink data can be sent with reliable transmission power and achieve transmission reliability.
  • the terminal device may communicate with a first network device capable of downlink transmission and a second network device not capable of downlink transmission.
  • the terminal device may determine the path loss through network information sent by the first network device with downlink transmission capability.
  • the network device without downlink transmission capability may refer to a network device that cannot perform downlink transmission at all, or a network device that cannot send information (for example, a path loss reference signal) for terminal devices to determine path loss.
  • a network device capable of downlink transmission may refer to a network device capable of sending any downlink information (including downlink data information and downlink control signaling), or may send information for terminal devices to determine path loss (for example, path loss reference signal ) network device.
  • the network device in this embodiment is the first network device capable of downlink transmission.
  • the first network device may configure and send network information for the terminal device to determine the path loss with the second network device not capable of downlink transmission, and perform uplink transmission.
  • the network devices appearing in the following embodiments all refer to the first network device.
  • the terminal device can communicate with more network devices. At this time, at least one network device among the multiple network devices has the capability of downlink transmission. At this time, the network device with the capability of downlink transmission can configure and send network information , for the terminal device to determine the path loss with one or more other network devices that do not have a downlink transmission capability, and perform uplink transmission.
  • the network information is applicable to the transmission of at least one of the following information: physical uplink control channel (Physical Uplink Control Channel, PUCCH), physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), sounding reference signal (Sounding reference signal , SRS), the preamble in message 1, and the preamble in message A. That is to say, the path loss determined according to the network information can be used for the uplink transmission of the above information.
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • SRS Sounding reference signal
  • PUSCH is selected from one or more of the following: configured and scheduled PUSCH, dynamically scheduled PUSCH, PUSCH in message 3 (Msg3), and PUSCH in message A (MsgA).
  • the path loss indication information includes one or more of the following: path loss value, reference signal received power, path loss offset, and reference signal received power offset.
  • the path loss indication information may directly indicate the path loss value, and the terminal device can directly obtain the path loss value from the path loss indication information.
  • the path loss indication information may also indicate Reference Signal Received Power (RSRP) (for example, the RSRP of the path loss reference signal, or the RSRP of the uplink signal).
  • RSRP Reference Signal Received Power
  • the terminal device can know the signal transmission power Yes, after the RSRP is obtained through the path loss indication information, the path loss can be obtained through calculation.
  • the signal transmission power in the embodiment of the present application may be the transmission power of the uplink signal, or may be the transmission power of the path loss reference signal.
  • the path loss reference signal in this embodiment of the present application may be sent by the first network device.
  • the path loss is the difference between the transmission power of the path loss reference signal and the received power of the path loss reference signal.
  • the signal transmission power is the transmission power of the uplink signal
  • the path loss is the difference between the signal transmission power and the uplink signal reception power.
  • the path loss indication information may also indicate the path loss offset, that is, the offset relative to the reference path loss.
  • the reference path loss refers to the path loss calculated based on the transmit power of the path loss reference signal and the RSRP value of the path loss reference signal. , actually refers to the path loss between a station with downlink and uplink transmission capabilities (for example, the first network device) and the terminal device; in this case, the terminal device calculates the reference path loss and uses the reference path loss and path
  • the loss offset determines the path loss between the terminal device and a station not capable of downlink transmission (for example, the second network device).
  • the path loss indication information may also indicate the reference signal received power offset (for example, the received power offset of the path loss reference signal), which is an offset relative to the reference RSRP, and the reference RSRP is the RSRP of the path loss reference signal, In fact, it refers to the RSRP of the path loss reference signal sent by a station with downlink and uplink transmission capabilities (for example, the first network device); in this case, the terminal device calculates the reference RSRP, and receives the reference RSRP and reference signal The power offset determines the actual RSRP, and then uses the actual RSRP and signal transmission power to calculate the path loss.
  • the reference signal received power offset for example, the received power offset of the path loss reference signal
  • network information may be transmitted in any one or more of the following manners 1 to 4.
  • the network device sends RRC signaling, and the terminal device receives the RRC signaling, where the RRC signaling includes network information.
  • the network device sends Media Access Control (MAC) signaling, such as MAC Control Element (CE).
  • MAC Media Access Control
  • CE MAC Control Element
  • the terminal device receives MAC signaling, where the MAC signaling includes network information.
  • the MAC signaling also includes one or more of the following: an identification of a dedicated logical channel (Extended Logical Channel IDentification, eLCID), and the identification of the dedicated logical channel is used to indicate that the MAC signaling includes the network Information; Cell ID; Partial Bandwidth ID; Power Control Adjustment Status Index.
  • eLCID Extended Logical Channel IDentification
  • the identifier of the dedicated logical channel is used to indicate one or more of the following: MAC signaling includes network information for PUSCH, MAC signaling includes network information for PUCCH, and MAC signaling includes information for Sounding reference signal (Sounding reference signal , SRS) network information. That is to say, eLCID can indicate that this CE is used to configure/indicate the network information of PUSCH; eLCID can also indicate that this MAC CE is used to configure/indicate the network information of PUCCH; eLCID can also indicate that this MAC CE is used to configure/indicate Indicates the network information of the SRS.
  • SRS Sounding reference signal
  • the MAC signaling is MAC Random Access Response (Random Access Response, RAR).
  • RAR Random Access Response
  • the network device sends downlink control information (Downlink Control Information, DCI), and the terminal device receives the DCI.
  • DCI Downlink Control Information
  • the DCI includes or indicates network information.
  • the DCI may include one or more of user-specific scheduling DCI, user-specific non-scheduling DCI, and public DCI.
  • the value of the predefined field in the user-specific non-scheduled DCI is the first value, and/or, a preset radio network temporary identity (Radio Network Temporary Identity, RNTI) is used
  • RNTI Radio Network Temporary Identity
  • the user-specific non-scheduled DCI includes the network information.
  • precoding information field For user-specific non-scheduled DCI, one or more of the following fields are used to indicate the network information: precoding information field;
  • Layer number field (Precoding information and number of layers);
  • HARQ process number field (HARQ process number);
  • Antenna port field (Antenna port);
  • Modulation and coding scheme field Modulation and coding scheme
  • Time domain resource assignment field (Time domain resource assignment);
  • Frequency domain resource assignment field (Frequency domain resource assignment);
  • SRS request Sounding reference signal request field
  • DMRS sequence initialization Demodulation reference signal sequence initialization field
  • the common DCI in the case of using a dedicated RNTI to scramble the PDCCH carrying the common DCI, the common DCI includes the network information.
  • the terminal device After determining that the public DCI includes the network information, the terminal device obtains its own network information according to the information configured by the upper layer and the corresponding field position in the DCI. Specifically, the network device sends high-level configuration information.
  • the terminal device receives the high-level configuration information, determines the field corresponding to the terminal device in the public DCI according to the high-level configuration information, and acquires network information in the field corresponding to the terminal device.
  • DCI is DCI format 1_0 scrambled by random RNTI (RA-RNTI) or message BRNTI (MsgB-RNTI).
  • RA-RNTI random RNTI
  • MsgB-RNTI message BRNTI
  • the reserved bit of DCI 1_0 is used to indicate network information, or DCI 1_0 includes indication information (referred to as first indication information), and the first indication information is used to indicate whether the scheduled RAR includes network information.
  • the DCI further includes invalid indication information, which is used to indicate that the network information indicated by the DCI is invalid, that is, it can be ignored.
  • the invalid indication information may be indicated through a field in the DCI that is different from the field indicating the network information.
  • the validity of the network information is determined according to the code point value of the field indicating the network information in the DCI, for example, if the code point value is 0, this field is ignored.
  • the invalidation indication information when the invalidation indication information is indicated by a field different from the field indicating the network information in the DCI, the invalidation indication information may be determined based on information indicated by the Transmit Power Control (TPC) field in the DCI. For example, when the TPC control field (Command Field) is 0, it is invalid indication information, that is, it can be considered that there is no network information or the network information is ignored.
  • TPC Transmit Power Control
  • the terminal device may calculate other power control parameters, such as the above-mentioned signal transmission power. Specifically, it can be carried out by any one or more of the following methods A to H.
  • Mode A Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is less than the first preset threshold, determine the terminal device and the path loss based on the reference signal received power of the path loss reference signal The transmit power of the second network device for uplink transmission.
  • mode A if the first path loss value calculated by the terminal device based on the RSRP value of the path loss reference signal is smaller than the first preset threshold, the terminal device obtains the connection between the terminal device and the second network device based on the RSRP value of the path loss reference signal. Send power for uplink transmission.
  • Method B Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than or equal to the first preset threshold, determine the connection between the terminal device and the second path loss based on the path loss obtained from the network information. The transmit power of the network device for uplink transmission.
  • the terminal device obtains the connection between the terminal device and the second network device based on the path loss obtained from the network information.
  • the path loss obtained based on the network information may be a path loss obtained based on an RSRP value or a reference signal received power offset, a path loss value, or a path loss offset included in the network information.
  • mode A can also be replaced with “less than or equal to”, at this time, "greater than or equal to” in mode B can be replaced with “greater than”.
  • Mode C Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is smaller than the path loss obtained based on the network information, then calculate the first path loss according to the reference signal received power of the path loss reference signal Determine the sending power for uplink transmission between the terminal device and the second network device.
  • Mode D Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than or equal to the path loss obtained based on the network information, determine the terminal according to the path loss obtained based on the network information The transmit power for uplink transmission between the device and the second network device.
  • the terminal device obtains the path loss between the terminal device and the path based on the RSRP value of the path loss reference signal.
  • the transmit power for uplink transmission performed by the second network device; otherwise, the transmit power for uplink transmission performed between the terminal device and the second network device is obtained based on the path loss obtained from the network information.
  • the path loss obtained based on the network information may be a path loss obtained based on an RSRP value or a reference signal received power offset, a path loss value, or a path loss offset included in the network information.
  • mode C can also be replaced with “less than or equal to”
  • greater than or equal to in mode D can be replaced with “greater than”.
  • Mode E Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than the first preset threshold, determine the terminal device and the path loss based on the reference signal received power of the path loss reference signal The transmit power of the second network device for uplink transmission.
  • mode E if the first path loss value calculated by the terminal device based on the RSRP value of the path loss reference signal is greater than the first preset threshold, the terminal device obtains the connection between the terminal device and the second network device based on the RSRP value of the path loss reference signal. Send power for uplink transmission.
  • Method F Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is less than or equal to the first preset threshold, determine the connection between the terminal device and the second path loss based on the path loss obtained from the network information. The transmit power of the network device for uplink transmission.
  • the terminal device obtains the connection between the terminal device and the second network device based on the path loss obtained from the network information.
  • the path loss obtained based on the network information may be a path loss obtained based on an RSRP value or a reference signal received power offset or a path loss value or a path loss offset included in the network information.
  • Mode G Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is greater than the path loss obtained based on the network information, then according to the reference signal received power of the path loss reference signal Determine the sending power for uplink transmission between the terminal device and the second network device.
  • Method H Calculate the first path loss based on the reference signal received power of the path loss reference signal; if the first path loss is less than or equal to the path loss obtained based on the network information, determine the terminal based on the path loss obtained based on the network information The transmit power for uplink transmission between the device and the second network device.
  • the terminal device calculates the path loss value based on the RSRP value of the path loss reference signal is greater than the path loss value obtained based on network information, the terminal device obtains the terminal device based on the RSRP value of the path loss reference signal.
  • the transmit power for uplink transmission with the second network device; conversely, the transmit power for uplink transmission between the terminal device and the second network device is obtained based on the path loss obtained from the network information.
  • the path loss value obtained based on the network information may be a path loss obtained based on an RSRP value or a reference signal received power offset, a path loss value, or a path loss offset included in the network information.
  • the first preset threshold may be pre-configured by the network or stipulated by the protocol or determined through negotiation between the network device and the terminal device;
  • the specific implementation manner of the transmit power for the uplink transmission performed by the device is known to those skilled in the art, and will not be repeated in this embodiment of the present application.
  • the path loss indication information includes a power control adjustment state index.
  • the power control adjustment state index value is 1.
  • the path loss indication information also includes applicable indication information, and the applicable indication information indicates whether the path loss indication information is applicable to the signal or signal associated with the power control adjustment state index, that is, indicates whether the path loss indication information can be used for power control adjustment
  • the signal or signals to which the state index is associated the indication information is used to indicate that the network information is applicable to the channel or signal associated with the associated power control adjustment state index, or is used to indicate that the network information is not applicable to the channel or signal associated with the associated power control adjustment state index .
  • the aforementioned channel may be PUCCH or PUSCH; the aforementioned signal may be SRS.
  • the path loss indication information also includes reference signal transmission power (for example, path loss reference signal transmission power), or reference signal transmission power offset value (for example, path loss reference signal transmission power offset value).
  • reference signal transmission power for example, path loss reference signal transmission power
  • reference signal transmission power offset value for example, path loss reference signal transmission power offset value
  • the network device indicates the reference signal transmission power or reference signal transmission power offset value in the path loss indication information, so that the terminal device can combine the received reference signal transmission power or reference signal transmission power offset value, and
  • the path loss is calculated from the RSRP measured by itself (for example, the RSRP of the path loss reference signal).
  • the path loss indication information includes at least two reference signal transmission powers or at least two reference signal transmission power offsets.
  • At least two reference signal transmit powers may be carried by the same information/signaling, or may be carried by different information/signaling.
  • At least two reference signal transmission powers or at least two reference signal transmission power offsets are associated with the same reference signal (for example, the same path loss reference signal), or at least two reference signal transmission powers or at least two
  • the reference signal transmission power offsets are associated with different reference signals (for example, different path loss reference signals).
  • the aforementioned reference signal may be a path loss reference signal, which may be used for path loss calculation.
  • At least two reference signal transmission powers include a first transmission power and a second transmission power, the value of the first transmission power is the largest, and the second transmission power is a smaller transmission power value; the at least two reference signal transmission powers are offset The amount includes a first transmit power offset and a second transmit power offset, the first transmit power offset has the smallest power offset, and the second transmit power offset is a larger transmit power offset.
  • the second transmit power, or the second transmit power offset to calculate the path loss; otherwise, use the first transmit power, or the second transmit power offset - Transmit power offset to calculate path loss.
  • the second transmission power or the second transmission power offset is used to calculate the path loss; otherwise, the first transmission power is used power, or the first transmit power offset, to calculate the path loss.
  • the first preset threshold and the second preset threshold may be configured by the network device, may also be stipulated by a protocol, or may be determined through negotiation between the terminal device and the network device. No limit.
  • FIG. 2 shows an exemplary interaction process between a network device and a terminal device.
  • Step 301 the first network device determines network information.
  • Step 302 the first network device sends one or more of RRC signaling, MAC signaling and DCI, where the RRC signaling and MAC signaling include the above network information, and the DCI includes or indicates the above network information.
  • the terminal device receives one or more of RRC signaling, MAC signaling and DCI.
  • the network information includes the above path loss indication information.
  • Step 303 the terminal device determines the path loss according to the path loss indication information in the network information, and then determines the transmit power for uplink transmission with the second network device.
  • Step 304 the terminal device performs uplink transmission with the second network device according to the determined transmission power.
  • a possible implementation manner is: if the first path loss value calculated by the terminal device based on the RSRP value of the path loss reference signal is less than or equal to the first preset threshold, then the terminal device calculates the first path loss value based on the RSRP value of the path loss reference signal RSRP value to get transmit power. If the first path loss value calculated by the terminal device based on the RSRP value of the path loss reference signal is greater than the first preset threshold, the terminal device obtains transmission power according to the path loss value determined based on the path loss indication information.
  • Another possible implementation is: if the path loss value calculated by the terminal device based on the RSRP value of the path loss reference signal is greater than or equal to the path loss value obtained based on the path loss indication information in the network information, then the terminal device The RSRP value of the loss reference signal obtains the transmission power; otherwise, the terminal device obtains the transmission power according to the path loss value determined based on the path loss indication information.
  • FIG. 3 shows a communication device 40.
  • the communication device 40 may include:
  • a receiving module 401 configured to receive network information, where the network information includes path loss indication information;
  • the above-mentioned communication device 40 may correspond to a chip with a power control parameter determination function in the terminal device, such as a system-on-a-chip (System-On-a-Chip, SOC), a baseband chip, etc.; or correspond to a terminal device that includes A chip module with a power control parameter determination function; or corresponding to a chip module with a data processing function chip, or corresponding to a terminal device.
  • a chip with a power control parameter determination function in the terminal device, such as a system-on-a-chip (System-On-a-Chip, SOC), a baseband chip, etc.
  • SOC System-On-a-Chip
  • FIG. 4 shows a communication device 50.
  • the communication device 50 may include:
  • a configuration module 501 configured to determine network information, where the network information includes path loss indication information, and the path loss indication information is used to determine path loss;
  • the sending module 502 is configured to send network information.
  • the above-mentioned communication device 50 may correspond to a chip with a power control parameter configuration function in the network device, such as an SOC, a baseband chip, etc.; or correspond to a chip module with a power control parameter configuration function in the network device; or Corresponds to a chip module with a data processing function chip, or corresponds to a network device.
  • each module/unit contained in the product may be a software module/unit, or a hardware module/unit, or may be partly a software module/unit and partly a hardware module/unit.
  • each module/unit contained therein may be realized by hardware such as a circuit, or at least some modules/units may be realized by a software program, and the software program Running on the integrated processor inside the chip, the remaining (if any) modules/units can be realized by means of hardware such as circuits; They are all realized by means of hardware such as circuits, and different modules/units can be located in the same component (such as chips, circuit modules, etc.) or different components of the chip module, or at least some modules/units can be realized by means of software programs,
  • the software program runs on the processor integrated in the chip module, and the remaining (if any) modules/units can be realized by hardware such as circuits;
  • the modules/units can all be realized by means of hardware such as hardware such as circuits.
  • the embodiment of the present application also discloses a storage medium, the storage medium is a computer-readable storage medium, on which a computer program is stored, and the computer program can execute the steps of the methods shown in FIG. 1 to FIG. 3 when running.
  • the storage medium may include a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • the storage medium may also include a non-volatile memory (non-volatile) or a non-transitory (non-transitory) memory, and the like.
  • the embodiment of the present application also provides a schematic diagram of a hardware structure of a communication device.
  • the device includes a processor 601 , a memory 602 and a transceiver 603 .
  • the processor 601 may be a general-purpose central processing unit (central processing unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more devices used to control the execution of the program program of this application. integrated circuit.
  • the processor 601 may also include multiple CPUs, and the processor 601 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, or processing cores for processing data such as computer program instructions.
  • Memory 602 can be ROM or other types of static storage devices that can store static information and instructions, RAM or other types of dynamic storage devices that can store information and instructions, and can also be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), read-only disc (compactdisc read-only memory, CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), disk storage
  • the medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, is not limited in this embodiment of the present application.
  • the memory 602 may exist independently (in this case, the memory 602 may be located outside the device or within the device), or may be integrated with the processor 601 . Wherein, the memory 602 may contain computer program codes.
  • the processor 601 is configured to execute the computer program code stored in the memory 602, so as to implement the method provided by the embodiment of the present application.
  • the processor 601, the memory 602 and the transceiver 603 are connected through a bus.
  • Transceiver 603 is used to communicate with other devices or a communication network.
  • the transceiver 603 may include a transmitter and a receiver.
  • the device in the transceiver 603 for implementing the receiving function may be regarded as a receiver, and the receiver is configured to perform the receiving step in the embodiment of the present application.
  • the device in the transceiver 603 for implementing the sending function may be regarded as a transmitter, and the transmitter is used to perform the sending step in the embodiment of the present application.
  • the processor 601 is used to control and manage the actions of the terminal device, for example, the processor 601 is used to support the terminal device to execute the diagram Step 101 and step 102 in 1, or step 302, step 303 and step 304 in FIG. 2 , and/or actions performed by the terminal device in other processes described in the embodiments of this application.
  • the processor 601 may communicate with other network entities through the transceiver 603, for example, communicate with the aforementioned network devices.
  • the memory 602 is used to store program codes and data of the terminal device. When the processor runs the computer program, it may control the transceiver 603 to receive one or more of RRC signaling, MAC signaling and DCI.
  • the processor 601 is used to control and manage the actions of the network device, for example, the processor 601 is used to support the network device to execute the diagram Step 201 and step 202 in 2, or step 301 and step 302 in FIG. 2 , and/or actions performed by the network device in other processes described in the embodiments of this application.
  • the processor 601 may communicate with other network entities through the transceiver 603, for example, communicate with the above-mentioned terminal equipment.
  • the memory 602 is used to store program codes and data of the network device. When the processor runs the computer program, it may control the transceiver 603 to send one or more of RRC signaling, MAC signaling and DCI.
  • the embodiment of this application defines the one-way communication link from the access network to the terminal equipment as the downlink, the data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called the downlink direction;
  • the one-way communication link of the network is the uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • Multiple appearing in the embodiments of the present application means two or more.
  • connection in the embodiment of the present application refers to various connection methods such as direct connection or indirect connection to realize communication between devices, which is not limited in the embodiment of the present application.
  • the above-mentioned embodiments may be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations.
  • the above-described embodiments may be implemented in whole or in part in the form of computer program products.
  • the computer program product comprises one or more computer instructions or computer programs.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Wired or wireless transmission to another website site, computer, server or data center.
  • sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed methods, devices and systems can be implemented in other ways.
  • the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the above-mentioned integrated units implemented in the form of software functional units may be stored in a computer-readable storage medium.
  • the above-mentioned software functional units are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods described in various embodiments of the present application.

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Abstract

Sont divulgués dans la présente demande un procédé et un appareil de communication, et un support de stockage lisible par ordinateur. Le procédé de communication comprend : la réception d'informations de réseau, et la réalisation d'une transmission en liaison montante selon les informations de réseau. Les informations de réseau comprennent des informations d'indication de perte de trajet, et les informations d'indication de perte de trajet sont utilisées pour déterminer une perte de trajet. La présente demande concerne une solution permettant d'effectuer une transmission en liaison montante lorsqu'un dispositif terminal communique avec un dispositif de réseau prenant uniquement en charge une fonction de réception.
PCT/CN2022/113231 2021-08-31 2022-08-18 Procédé et appareil de communication, et support de stockage lisible par ordinateur Ceased WO2023030019A1 (fr)

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