[go: up one dir, main page]

WO2018177332A1 - Procédé de détection de transmission en liaison descendante, station de base et terminal - Google Patents

Procédé de détection de transmission en liaison descendante, station de base et terminal Download PDF

Info

Publication number
WO2018177332A1
WO2018177332A1 PCT/CN2018/080942 CN2018080942W WO2018177332A1 WO 2018177332 A1 WO2018177332 A1 WO 2018177332A1 CN 2018080942 W CN2018080942 W CN 2018080942W WO 2018177332 A1 WO2018177332 A1 WO 2018177332A1
Authority
WO
WIPO (PCT)
Prior art keywords
reference signal
downlink transmission
enhanced reference
enhanced
base station
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/CN2018/080942
Other languages
English (en)
Chinese (zh)
Inventor
孙立新
丁颖哲
周明宇
陈华敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baicells Technologies Co Ltd
Original Assignee
Baicells Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baicells Technologies Co Ltd filed Critical Baicells Technologies Co Ltd
Publication of WO2018177332A1 publication Critical patent/WO2018177332A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a downlink transmission detection method, a base station, and a terminal.
  • the MulteFire technology is a radio access technology that extends LTE (Long Term Evolution) to an unlicensed band. It can be referred to as MF.
  • LTE Long Term Evolution
  • MF Long Term Evolution
  • an unlicensed band carrier can provide services independently without using a licensed band carrier.
  • a Wi-Fi-like carrier is introduced at the physical layer of the MF (MulteFire) in order to enable a plurality of unlicensed band devices (such as Wi-Fi devices) to occupy the unlicensed band channels fairly and avoid mutual interference between devices in the unlicensed band.
  • the LBT (Listen Before Talk) mechanism of the monitoring technology shall not transmit a signal when the base station or the terminal monitors that the unlicensed band channel is occupied, that is, when the LBT fails, when the unlicensed band channel is idle, The signal is sent only when the LBT is successful.
  • the channel fading is relatively large due to the geographical location, and the signal penetration loss is relatively large, wherein the base station issues The reference signal is easily faded, affecting the terminal for downlink transmission detection.
  • the embodiment of the present application provides a downlink transmission detection method, a base station, and a terminal, which are to solve the technical problem that the accuracy of the downlink transmission detection is affected by the fading of the reference signal in the related art, and the coverage signal can be covered and enhanced. Effectively perform downlink transmission detection.
  • the embodiment of the present application provides a downlink transmission detection method, including: releasing an enhanced reference signal in a downlink transmission process, so that the terminal determines a channel occupancy condition of the base station according to the enhanced reference signal.
  • the method further includes: releasing a basic reference signal, where the terminal jointly detects, according to the basic reference signal and the enhanced reference signal, whether the base station occupies a channel for downlink transmission, where
  • the basic reference signal includes one or more of a cell common reference signal, a demodulation reference signal, and a synchronization message signal, and a resource configuration of the enhanced reference signal is determined according to the basic reference signal.
  • the step of issuing the enhanced reference signal specifically includes: releasing the enhanced reference signal in a first downlink transmission time interval within the transmission opportunity, for the terminal to determine The starting position of the downstream transmission.
  • the step of issuing the enhanced reference signal specifically includes: releasing the enhanced reference signal in each downlink transmission time interval within the transmission opportunity.
  • the method further includes: determining whether the coverage enhancement can be completed within the one downlink transmission time interval when the detection signal is issued in a downlink transmission time interval; when the determination result is yes And not issuing the enhanced reference signal; when the determination result is no, entering the step of issuing the enhanced reference signal, so that the enhanced reference signal is released in multiple downlink transmission time intervals.
  • the method further includes: determining a signal sequence and a time-frequency position of the enhanced reference signal according to the cell common reference signal.
  • the method further includes: determining a time-frequency location of the enhanced reference signal according to a cell identifier of a cell where the terminal is located.
  • the step of issuing an enhanced reference signal includes: releasing the enhanced reference signal by using the same time-frequency position of all antenna ports.
  • the actual number of antenna ports that issue the enhanced reference signal is the same as the actual number of antenna ports that issue the common reference signal of the cell, and the step of issuing the enhanced reference signal, Including: issuing different said enhanced reference signals at different locations through different antennas.
  • the method further includes: determining a time-frequency position of the enhanced reference signal according to the demodulation reference signal.
  • the method further includes: in a physical resource block, the time-frequency position of the enhanced reference signal is the same as the time-frequency position of the demodulation reference signal.
  • the step of issuing the enhanced reference signal includes: releasing the enhanced reference signal in a first time slot and/or a second time slot of a downlink transmission time interval.
  • the number of OFDM symbols occupied by the enhanced reference signal is a predetermined number.
  • the method further includes: determining, according to the length of the current downlink transmission time interval, the number of OFDM symbols occupied by the enhanced reference signal.
  • the frequency domain resource size of the enhanced reference signal is a predetermined size.
  • the method further includes: determining, according to the number of OFDM symbols occupied by the enhanced reference signal in one downlink transmission time interval and the density of each physical resource block, determining the enhanced reference signal.
  • a frequency domain resource, wherein the enhanced reference signal has a constant transmission density during a downlink transmission time interval.
  • the method further includes: determining a time-frequency position of the enhanced reference signal according to the channel state information reference signal.
  • the method further includes: determining, when the enhanced reference signal is sent, whether the enhanced reference signal conflicts with a public signal or a user-specific signal; when determining a sending conflict, performing a corresponding conflict Processing method.
  • the method further includes: determining, according to the primary system information block, a frequency domain resource of the enhanced reference signal.
  • the method further includes: determining, according to a predetermined acquisition rule, a frequency domain resource of the enhanced reference signal, where the predetermined acquisition rule is a function of a cell identifier of a cell where the terminal is located.
  • the time-frequency position of the enhanced reference signal is fixed.
  • the time-frequency position of the enhanced reference signal is determined according to the number of OFDM symbols occupied by one downlink transmission time interval.
  • the step of issuing the enhanced reference signal specifically includes: releasing the enhanced reference signal in a full bandwidth.
  • the step of issuing an enhanced reference signal includes: releasing the enhanced reference signal in a partial bandwidth, wherein the partial bandwidth is a predetermined amount of the entire bandwidth except the middle The bandwidth after the physical resource block.
  • the embodiment of the present application further provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, wherein the computer instructions cause the computer to perform the foregoing downlink of the present application. Transmission detection method.
  • an embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the computer, the computer can execute the above-described downlink transmission detection method of the present application.
  • the embodiment of the present application provides a base station, including: an enhanced reference signal issuing unit, which issues an enhanced reference signal during downlink transmission, so that the terminal determines a channel occupancy condition of the base station according to the enhanced reference signal.
  • the method further includes: a joint issuing unit, advertises a basic reference signal, where the terminal jointly detects, according to the basic reference signal and the enhanced reference signal, whether the base station occupies a channel.
  • the basic reference signal comprises one or more of a cell common reference signal, a demodulation reference signal, and a synchronization message signal, and a resource configuration of the enhanced reference signal is determined according to the basic reference signal.
  • the enhanced reference signal issuance unit is specifically configured to: issue the enhanced reference signal in a first downlink transmission time interval within the transmission opportunity, where the terminal determines the downlink The starting position of the transfer.
  • the enhanced reference signal issuing unit is specifically configured to: issue the enhanced reference signal in each downlink transmission time interval within the transmission opportunity.
  • the pre-judging unit determines whether the coverage enhancement can be completed within the one downlink transmission time interval when the detection signal is issued in a downlink transmission time interval, where When the determination result is yes, the enhanced reference signal is not issued, and when the determination result is no, the step of issuing the enhanced reference signal is entered, so that the enhanced reference signal is issued in multiple downlink transmission time intervals.
  • the method further includes: a first determining unit, determining a signal sequence and a time-frequency position of the enhanced reference signal according to the cell common reference signal.
  • the method further includes: a fifth determining unit, determining a time-frequency position of the enhanced reference signal according to a cell identifier of a cell where the terminal is located.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal by using the same time-frequency position of all antenna ports.
  • the actual number of antenna ports that issue the enhanced reference signal is the same as the actual number of antenna ports that issue the common reference signal of the cell, and the enhanced reference signal issuance unit is used. : Different said enhanced reference signals are issued at different locations by different antennas.
  • the method further includes: a sixth determining unit, determining a time-frequency position of the enhanced reference signal according to the demodulation reference signal.
  • the method further includes: in a physical resource block, the time-frequency position of the enhanced reference signal is the same as the time-frequency position of the demodulation reference signal.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a first time slot and/or a second time slot of a downlink transmission time interval.
  • the number of OFDM symbols occupied by the enhanced reference signal is a predetermined number.
  • the method further includes: a seventh determining unit, determining, according to the length of the current downlink transmission time interval, the number of OFDM symbols occupied by the enhanced reference signal.
  • the frequency domain resource size of the enhanced reference signal is a predetermined size.
  • the method further includes: an eighth determining unit, determining, according to the number of OFDM symbols occupied by the enhanced reference signal in one downlink transmission time interval and the density of each physical resource block, The frequency domain resource of the enhanced reference signal is described, wherein the enhanced reference signal has a constant transmission density during a downlink transmission time interval.
  • the method further includes: a ninth determining unit, determining a time-frequency position of the enhanced reference signal according to the channel state information reference signal.
  • the method further includes: a conflict determining unit, when transmitting the enhanced reference signal, determining whether the enhanced reference signal conflicts with a public signal or a user-specific signal; and the conflict processing unit determines When a conflict is sent, the corresponding conflict handling mode is executed.
  • the method further includes: determining, by the second determining unit, the frequency domain resource of the enhanced reference signal according to the primary system information block.
  • the method further includes: a third determining unit, configured to determine a frequency domain resource of the enhanced reference signal according to a predetermined acquiring rule, where the predetermined acquiring rule is a cell identifier of a cell where the terminal is located The function.
  • the time-frequency position of the enhanced reference signal is fixed.
  • the fourth determining unit determines the time-frequency position of the enhanced reference signal according to the number of OFDM symbols occupied by one downlink transmission time interval.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a full bandwidth.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a partial bandwidth, where the partial bandwidth is a predetermined amount of physical medium in the entire bandwidth The bandwidth after the resource block.
  • the embodiment of the present application provides a downlink transmission detection method, including: acquiring an enhanced reference signal issued by a base station; and detecting, according to the enhanced reference signal, whether the base station occupies a channel for downlink transmission.
  • the method further includes: acquiring a basic reference signal that is sent by the base station, where the basic reference signal includes one or more of a common reference signal, a demodulation reference signal, and a synchronization message signal. And the determining, according to the enhanced reference signal, the step of detecting whether the base station occupies a channel for performing downlink transmission according to the enhanced reference signal, specifically, according to the enhanced reference signal and the The basic reference signal jointly detects whether the base station occupies a channel for downlink transmission.
  • the method further includes: determining that a downlink transmission time interval where the enhanced reference signal is located is a starting position of a downlink transmission, where the base station occupies a channel for downlink transmission.
  • the embodiment of the present application further provides a non-transitory computer readable storage medium, where the non-transitory computer readable storage medium stores computer instructions, wherein the computer instructions cause the computer to perform the foregoing downlink of the present application. Transmission detection method.
  • the embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program When the instructions are executed by the computer, the computer can execute the above-described downlink transmission detection method of the present application.
  • the embodiment of the present application provides a terminal, including: a first acquiring unit, acquiring an enhanced reference signal issued by a base station; and a downlink transmission detecting unit, detecting, according to the enhanced reference signal, whether the base station occupies a channel for downlinking transmission.
  • the method further includes: acquiring, by the second acquiring unit, a basic reference signal that is sent by the base station, where the basic reference signal includes a cell common reference signal, a demodulation reference signal, and a synchronization message signal. And determining, by the one or more, a resource configuration of the enhanced reference signal, according to the basic reference signal, where the downlink transmission detecting unit is configured to: jointly detect, according to the enhanced reference signal and the basic reference signal, Whether the base station occupies a channel for downlink transmission.
  • the method further includes: a start location determining unit, configured to determine, when the base station occupies a channel for downlink transmission, determining that the downlink transmission time interval of the enhanced reference signal is downlink The starting position of the transfer.
  • the embodiment of the present application provides a terminal, including: a processor; and a memory, where the memory stores an instruction that can be executed by the processor, and the processor is configured to invoke the And executing the following operations: acquiring an enhanced reference signal issued by the base station; and detecting, according to the enhanced reference signal, whether the base station occupies a channel for downlink transmission.
  • an embodiment of the present application provides a base station, including a transmitter, a receiver, a memory, and a processor respectively connected to a transmitter, a receiver, and a memory, where the memory is stored and executable by the processor. And the processor is configured to invoke the instruction stored by the memory, and perform an operation of: issuing an enhanced reference signal during downlink transmission, for the terminal to determine a channel occupancy condition of the base station according to the enhanced reference signal.
  • the enhanced reference signal may be released by the base station, and the density of the enhanced reference signal is greater than the original reference signal in the related art. That is to say, in the above technical solution, the terminal can provide a higher reference signal density for the terminal, that is, the coverage enhancement of the reference signal is enhanced, so that the terminal obtains the enhanced reference signal issued by the base station more conveniently and quickly to determine the channel occupancy of the base station. In this case, the terminal facilitates effective downlink transmission detection according to the enhanced reference signal, thereby improving the effectiveness of the communication.
  • FIG. 1 is a flowchart of a downlink transmission detecting method according to an embodiment of the present application
  • 2 to 6 illustrate resource maps of enhanced reference signals based on cell common reference signals
  • FIG. 7 shows a resource map of an enhanced reference signal based on a demodulation reference signal
  • Figure 8 shows a block diagram of a base station of one embodiment of the present application.
  • FIG. 9 is a flowchart of a downlink transmission detecting method according to another embodiment of the present application.
  • Figure 10 is a block diagram showing a terminal of one embodiment of the present application.
  • Figure 11 is a block diagram showing a terminal of another embodiment of the present application.
  • Figure 12 shows a block diagram of a base station of another embodiment of the present application.
  • FIG. 1 shows a flow chart of a downlink transmission detection method of one embodiment of the present application.
  • a downlink transmission detection method includes:
  • Step 102 Issue an enhanced reference signal during downlink transmission, so that the terminal determines the channel occupancy of the base station according to the enhanced reference signal.
  • the density of the enhanced reference signal is greater than that of the reference signal in the related art, that is, the above technical solution can provide a higher reference signal density for the terminal, that is, the coverage enhancement of the reference signal is realized, so that the terminal is more convenient and faster.
  • the method further includes: releasing a basic reference signal, where the terminal jointly detects, according to the basic reference signal and the enhanced reference signal, whether the base station occupies a channel for downlink transmission, where
  • the basic reference signal includes one or more of a cell common reference signal, a demodulation reference signal, and a synchronization message signal, and a resource configuration of the enhanced reference signal is determined according to the basic reference signal.
  • the enhanced reference signal is also released on the basis of the basic signal, which greatly increases the density of the reference signal, so that the terminal can obtain the effective reference signal more conveniently and efficiently to determine the channel occupancy of the base station.
  • the enhanced reference signal may be used only for downlink transmission detection.
  • the enhanced reference signal can be used for both downlink transmission detection and channel estimation.
  • step 102 specifically includes: transmitting the enhanced reference signal in a first downlink transmission time interval within the transmission opportunity, for the terminal to determine a starting location of the downlink transmission. That is, for a transmission opportunity initiated by the base station, the terminal must determine the starting position of the downlink transmission, and does not transmit the enhanced reference signal during other downlink transmission time intervals within the transmission opportunity.
  • step 102 specifically includes: releasing the enhanced reference signal in each downlink transmission time interval within the transmission opportunity, to enhance the possibility that the terminal detects the enhanced reference signal, and improve communication. Success rate.
  • the method further includes: when the detection signal is issued in a downlink transmission time interval, determining whether the coverage enhancement can be completed within the one downlink transmission time interval; when the determination result is yes, The enhanced reference signal is not issued; when the determination result is no, the process proceeds to step 102 to issue the enhanced reference signal in multiple downlink transmission time intervals.
  • the detection signal includes MF-PSS/SSS (MF system primary/secondary synchronization signal), MF-PBCH (Physical Broadcast Channel), and the like.
  • the parameters of the enhanced reference signal may be determined according to three methods: a cell common reference signal, a demodulation reference signal, or a channel state information reference signal. The following three manners are separately described.
  • a signal sequence and a time-frequency position of the enhanced reference signal may be determined according to the cell common reference signal. That is to say, the signal sequence and the time-frequency position of the enhanced reference signal are set based on the relevant parameters of the common reference signal of the cell.
  • the time-frequency location of the enhanced reference signal is determined, including but not limited to the following:
  • the time-frequency position of the enhanced reference signal is fixed. That is, you can directly obtain a fixed time-frequency position. That is to say, the time-frequency position of the enhanced reference signal does not change with the number of cell common reference signal antenna ports. Further, the time-frequency position of the enhanced reference signal is independent of the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols occupied by the downlink transmission in one TTI.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the time-frequency position of the enhanced reference signal can be determined according to the number of OFDM symbols occupied by one downlink transmission time interval. That is to say, the time-frequency position of the enhanced reference signal based on the common reference signal of the cell is changed, and the number of antenna ports according to the common reference signal of the cell has different time-frequency positions, and further, the time-frequency position of the enhanced reference signal also depends on The number of OFDM symbols occupied by downlink transmission in a TTI (Transmission Time Interval) is related.
  • TTI Transmission Time Interval
  • the time-frequency position of the enhanced reference signal may be determined according to the cell identifier of the cell where the terminal is located.
  • the time-frequency position of the enhanced reference signal may also be independent of the cell identifier of the cell where the terminal is located.
  • the process for issuing the enhanced reference signal includes, but is not limited to, the following:
  • step 102 includes issuing the enhanced reference signal through the same time-frequency location of all antenna ports. That is to say, the enhanced reference signal has no difference in antenna port. That is, at all time-frequency positions for enhancing the reference signal, the time-frequency positions of the enhanced reference signals transmitted by the respective antenna ports are the same, and the signals are also the same.
  • the time-frequency position of the enhanced reference signal is antenna port 0 based on the common reference signal of the cell.
  • step 102 includes issuing different said enhanced references at different locations through different antennas. signal.
  • the time-frequency position of the enhanced reference signal may also be determined according to the demodulation reference signal. That is, the resource mapping of the enhanced reference signal is based on a Demodulation Reference Signal (DMRS).
  • DMRS Demodulation Reference Signal
  • the enhanced reference signal based on the demodulation reference signal is transmitted only on a part of the physical resource block within the system bandwidth, depending on the frequency domain resource covering the enhanced common control channel, and the coverage enhanced common control channel is used to send the public control to the terminal.
  • Signaling and/or user-specific control signaling which occupies frequency domain resources of ⁇ 8, 16, 32 ⁇ physical resource blocks.
  • the frequency domain resource information of the coverage enhanced public control channel is obtained through pre-defined rules or system configuration information.
  • the method further includes: in a physical resource block, the time-frequency position of the enhanced reference signal is the same as the time-frequency position of the demodulation reference signal. Specifically, when the enhanced reference signal is obtained based on the demodulation reference signal, the enhanced reference signal, that is, the demodulation reference signal, has the same time-frequency position and demodulation reference signal in one physical resource block.
  • step 102 includes: issuing the enhanced reference signal in a first time slot and/or a second time slot of a downlink transmission time interval.
  • the enhanced reference signal may be transmitted only in the first time slot of one TTI, and in order to improve the effectiveness of the terminal for enhanced reference signal detection, the enhancement may also be sent in two time slots in one TTI. Reference signal.
  • the number of OFDM symbols occupied by the enhanced reference signal is a predetermined number.
  • the OFDM symbol index occupied by the enhanced reference signal may be fixed regardless of the length of time of the downlink transmission in the current TTI.
  • the downlink transmission only occupies part of the OFDM symbol, it may cause the partial enhanced reference signal to be untransmitted, that is, only the partial enhanced reference signal is transmitted.
  • the method further includes: determining, according to the length of the current downlink transmission time interval, the number of OFDM symbols occupied by the enhanced reference signal.
  • the OFDM symbol index occupied by the enhanced reference signal is variable, and the number of OFDM symbols occupied by the enhanced reference signal depends on the actual length of the current TTI. Therefore, when the terminal does not know the length of the downlink transmission in the current TTI, it is necessary to perform blind detection on the time domain position and the frequency domain position of the possible enhanced reference signal.
  • the frequency domain resource size of the enhanced reference signal is a predetermined size.
  • the frequency domain resource of the enhanced reference signal is fixed to 8 or 16 physical resource blocks.
  • the frequency domain resource of the enhanced reference signal may be determined according to the number of OFDM symbols occupied by the enhanced reference signal in one downlink transmission time interval and the density of each physical resource block. Wherein the enhanced reference signal has a constant transmission density over a downlink transmission time interval.
  • the frequency domain resource size of the enhanced reference signal may be changed according to a change criterion, which is to ensure that the transmission density of the enhanced reference signal in one TTI is the same, That is to say, it is necessary to ensure that the density of the enhanced reference signal issued by the base station is constant for the terminal to perform detection. Therefore, the frequency domain resource of the enhanced reference signal can be determined according to the number of OFDM symbols occupied by the enhanced reference signal in one TTI, the density within each physical resource block, and the like. For example, the enhanced reference signal needs to be transmitted on 4 OFDM symbols within one TTI and transmitted only within one basic frequency domain resource. If a TTI can only support 2 OFDM for enhanced reference signal transmission, the frequency domain resources of the enhanced reference signal are doubled to ensure that the transmission density of the enhanced reference signal in one TTI is the same.
  • the enhanced reference signal is transmitted over all of the frequency domain resources of the coverage enhanced common control channel.
  • the enhanced reference signal is only performed in part of the frequency domain resource covering the enhanced common control channel. send.
  • the part of the frequency domain resource may be obtained based on a specific rule, or may be obtained through signaling configuration.
  • the time-frequency position of the enhanced reference signal may also be determined according to a Channel State Information-Reference Signal (CSI-RS).
  • CSI-RS is non-zero power (NZP).
  • NZP non-zero power
  • two sets of NZP CSI-RSs can be configured as enhanced reference signals.
  • the following includes:
  • MIB Master Information Block
  • SIB1 system information applied in the coverage enhancement scenario of the unlicensed band.
  • the frequency domain resource of the enhanced reference signal may be determined according to a predetermined acquisition rule, where the predetermined acquisition rule is a cell identifier (cell ID) and a transmission time interval index of a cell where the terminal is located. , a function of the size of the frequency domain resource.
  • the rule can have the following expression:
  • R i represents an ith PRB pair of the frequency domain resource of the enhanced reference signal; Indicates the cell cell ID; Indicates the downlink system bandwidth; M is the size of the frequency domain resource of the enhanced reference signal, expressed as the number of PRB pairs.
  • the enhanced reference signal may be released in the full bandwidth to increase the successful release of the enhanced reference signal.
  • Rate the enhanced reference signal may also be distributed in a part of the bandwidth, and the part of the bandwidth is the bandwidth after removing the intermediate predetermined number of physical resource blocks in the full bandwidth, and the implementation manner is consistent with the foregoing partial description based on the CRS determining the enhanced reference signal. , will not repeat them here.
  • the method further includes: determining, when the enhanced reference signal is sent, whether the enhanced reference signal conflicts with a public signal or a user-specific signal; when determining a sending conflict, performing a corresponding conflict processing manner .
  • the base station when the enhanced reference signal is sent, if the time-frequency resource of the enhanced reference signal conflicts with other signals, the base station will punctify the enhanced reference signal or other existing signals at the time-frequency position of the part, that is, not corresponding.
  • the enhanced reference signal or the other signal is transmitted at the time-frequency location.
  • the other existing signals include a common signal and a user-specific signal, wherein the common signal includes a primary synchronization signal/secondary synchronization signal, a physical broadcast channel and its coverage enhancement signal, a primary synchronization signal/secondary synchronization signal of the MF system, and coverage enhancement thereof.
  • the common signal includes a primary synchronization signal/secondary synchronization signal, a physical broadcast channel and its coverage enhancement signal, a primary synchronization signal/secondary synchronization signal of the MF system, and coverage enhancement thereof.
  • a signal a Physical Downlink Control Channel (PDCCH), a Physical Downlink Shared Channel (PDSCH) that carries common data, and a common control channel that covers
  • the coverage enhanced public control channel is a set of common time-frequency resources for transmitting some common control information and/or user-specific control information to the terminal, wherein the common control information includes a shared physical downlink control channel, and the user-specific signal mainly refers to A physical downlink shared channel carrying user-specific data, a demodulation reference signal, a cell common reference signal, and the like.
  • the base station does not transmit the enhanced reference signal.
  • the base station does not transmit the PDSCH for the PDSCH carrying the common data, and sends an enhanced reference signal at the corresponding time-frequency position, that is, the base station punctured the PDSCH carrying the common data.
  • the enhanced reference signal is punctured.
  • the base station does not transmit the enhanced reference signal on the time-frequency resource carrying the common PDCCH (cPDCCH), but at the time-frequency position of transmitting other control information, Then punch the signal of other control information.
  • cPDCCH common PDCCH
  • the base station When the enhanced reference signal and the coverage enhanced common control channel collide, on the time-frequency resource carrying the common PDCCH, and when carrying the common control information for scheduling the common data information (for example, paging, system information, and the like) On the frequency resource, the base station does not send the enhanced reference signal, but on the time-frequency resources of other non-common control information, it is used to transmit the enhanced reference signal, that is, the signal of other non-common control information is punctured.
  • the base station transmits an enhanced reference signal, that is, puncturing the user-specific signal.
  • the base station does not transmit the enhanced reference signal, that is, punctifies the enhanced reference signal and transmits the user-specific signal at the conflicting location.
  • the base station does not transmit the enhanced reference signal, that is, punctifies the enhanced reference signal.
  • the base station sends an enhanced reference signal, that is, puncturing the PDSCH.
  • the base station does not transmit the enhanced reference signal.
  • the base station transmits an enhanced reference signal, that is, puncturing the user-specific signal.
  • 2 to 6 show resource maps of enhanced reference signals based on cell common reference signals.
  • the enhanced reference signal is transmitted only on the first OFDM symbol (OFDM symbol 1) in one slot and the third symbol (OFDM symbol 5) in the same slot, in one physical resource.
  • the frequency domain location in the block is the same as the CRS (Cell-specific Reference Signal) of the current cell.
  • the enhanced reference signal is transmitted in both time slots within one TTI, and the frequency domain position in one physical resource block is the same as the cell common reference signal of the current cell.
  • the enhanced reference signal is transmitted on the last two OFDM symbols in the first slot within one TTI, and the frequency domain position in one physical resource block is the same as the cell common reference signal of the current cell.
  • the enhanced reference signal is transmitted in the first two OFDMs of the OFDM symbol of the second transport cell common reference signal in the first time slot within one TTI, ie, OFDM symbols 2 and 3 as shown. .
  • the frequency domain location of the enhanced reference signal in one physical resource block is the same as the cell common reference signal of the current cell.
  • the enhanced reference signal is transmitted in both time slots of one TTI. Within each time slot, the enhanced reference signal is transmitted within the first two OFDMs of the OFDM symbol of the second transmit cell common reference signal in each time slot.
  • the frequency domain location of the enhanced reference signal in one physical resource block is the same as the cell common reference signal of the current cell.
  • FIG. 2 and FIG. 3 are applicable to the case where the number of antenna ports of the common reference signal of the cell is not more than 2, and the number of antenna ports applicable to the common reference signal of the cell in FIG. 4, FIG. 5 and FIG. 6 is ⁇ 1, 2 , 4 ⁇ scenes.
  • the base station may send the enhanced reference signal according to the actual number of antenna ports of the cell common reference signal of the system, or the base station sends the enhanced reference signal according to the scenario that the number of antenna ports of the cell common reference signal is 4.
  • the enhanced reference signal in the first time slot of one TTI, may conflict with the resource positions of the primary synchronization signal/secondary synchronization signal and the primary synchronization signal/secondary synchronization signal of the MF system.
  • the enhanced reference signal is not transmitted in the middle 6 physical resource blocks to avoid collision with the primary synchronization signal/secondary synchronization signal.
  • the second time slot may not be able to transmit the enhanced reference signal due to the limited transmission time of the downlink, in which case the enhanced reference signal is not transmitted.
  • the enhanced reference signal may have a resource conflict with the PDCCH, the enhanced PDCCH, the primary synchronization signal/secondary synchronization signal of the MF system, and the coverage enhancement of the physical broadcast channel of the MF system.
  • the enhanced reference signal is not at the corresponding location. The signal is transmitted, and the corresponding position is used to enhance the transmission of the reference signal, and the other conflicting channels are punctured.
  • FIG. 7 shows a resource map of an enhanced reference signal based on a demodulation reference signal.
  • the enhanced reference signal is transmitted on the last two OFDM symbols of the first slot based on the port 7 and port 9 of the demodulation reference signal.
  • An embodiment of the present application also provides a non-transitory computer readable storage medium storing computer instructions that cause the computer to perform any of the method embodiments described above The method provided.
  • An embodiment of the present application also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are When executed, the computer can perform the methods provided by any of the above method embodiments.
  • Figure 8 shows a block diagram of a base station of one embodiment of the present application.
  • the base station 800 of an embodiment of the present application includes an enhanced reference signal issuing unit 802, and issues an enhanced reference signal during downlink transmission, so that the terminal determines the channel occupancy of the base station 800 according to the enhanced reference signal. .
  • the method further includes: a joint issuing unit, releasing a basic reference signal, where the terminal jointly detects, according to the basic reference signal and the enhanced reference signal, whether the base station 800 occupies a channel Performing downlink transmission, where the basic reference signal includes one or more of a cell common reference signal, a demodulation reference signal, and a synchronization message signal, and a resource configuration of the enhanced reference signal is determined according to the basic reference signal.
  • the enhanced reference signal issuance unit is specifically configured to: issue the enhanced reference signal in a first downlink transmission time interval within the transmission opportunity, where the terminal determines the downlink The starting position of the transfer.
  • the enhanced reference signal issuing unit is specifically configured to: issue the enhanced reference signal in each downlink transmission time interval within the transmission opportunity.
  • the pre-judging unit determines whether the coverage enhancement can be completed within the one downlink transmission time interval when the detection signal is issued in a downlink transmission time interval, where When the determination result is yes, the enhanced reference signal is not issued, and when the determination result is no, the step of issuing the enhanced reference signal is entered, so that the enhanced reference signal is issued in multiple downlink transmission time intervals.
  • the method further includes: a first determining unit, determining a signal sequence and a time-frequency position of the enhanced reference signal according to the cell common reference signal.
  • the method further includes: a fifth determining unit, determining a time-frequency position of the enhanced reference signal according to a cell identifier of a cell where the terminal is located.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal by using the same time-frequency position of all antenna ports.
  • the actual number of antenna ports that issue the enhanced reference signal is the same as the actual number of antenna ports that issue the common reference signal of the cell, and the enhanced reference signal issuance unit is used. : Different said enhanced reference signals are issued at different locations by different antennas.
  • the method further includes: a sixth determining unit, determining a time-frequency position of the enhanced reference signal according to the demodulation reference signal.
  • the method further includes: in a physical resource block, the time-frequency position of the enhanced reference signal is the same as the time-frequency position of the demodulation reference signal.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a first time slot and/or a second time slot of a downlink transmission time interval.
  • the number of OFDM symbols occupied by the enhanced reference signal is a predetermined number.
  • the method further includes: a seventh determining unit, determining, according to the length of the current downlink transmission time interval, the number of OFDM symbols occupied by the enhanced reference signal.
  • the frequency domain resource size of the enhanced reference signal is a predetermined size.
  • the method further includes: an eighth determining unit, determining, according to the number of OFDM symbols occupied by the enhanced reference signal in one downlink transmission time interval and the density of each physical resource block, The frequency domain resource of the enhanced reference signal is described, wherein the enhanced reference signal has a constant transmission density during a downlink transmission time interval.
  • the method further includes: a ninth determining unit, determining a time-frequency position of the enhanced reference signal according to the channel state information reference signal.
  • the method further includes: a conflict determining unit, when transmitting the enhanced reference signal, determining whether the enhanced reference signal conflicts with a public signal or a user-specific signal; and the conflict processing unit determines When a conflict is sent, the corresponding conflict handling mode is executed.
  • the method further includes: determining, by the second determining unit, the frequency domain resource of the enhanced reference signal according to the primary system information block.
  • the method further includes: a third determining unit, configured to determine a frequency domain resource of the enhanced reference signal according to a predetermined acquiring rule, where the predetermined acquiring rule is a cell identifier of a cell where the terminal is located The function.
  • the time-frequency position of the enhanced reference signal is fixed.
  • the fourth determining unit determines the time-frequency position of the enhanced reference signal according to the number of OFDM symbols occupied by one downlink transmission time interval.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a full bandwidth.
  • the enhanced reference signal issuing unit is configured to: issue the enhanced reference signal in a partial bandwidth, where the partial bandwidth is a predetermined amount of physical medium in the entire bandwidth The bandwidth after the resource block.
  • FIG. 9 is a flow chart showing a downlink transmission detecting method of another embodiment of the present application.
  • the downlink transmission detection method of another embodiment of the present application includes:
  • Step 902 Acquire an enhanced reference signal issued by the base station.
  • Step 904 Detect, according to the enhanced reference signal, whether the base station occupies a channel for downlink transmission.
  • the enhanced reference signal may be released by the base station, and the density of the enhanced reference signal is greater than the original reference signal in the related art, that is, the terminal may be the terminal in the foregoing technical solution.
  • Providing a higher reference signal density, that is, the coverage enhancement of the reference signal is realized, so that the terminal can obtain the enhanced reference signal issued by the base station more conveniently and quickly, thereby determining the channel occupancy of the base station and improving the effectiveness of the communication.
  • the method further includes: acquiring a basic reference signal that is sent by the base station, where the basic reference signal includes one or more of a common reference signal, a demodulation reference signal, and a synchronization message signal.
  • the resource configuration of the enhanced reference signal is determined according to the basic reference signal.
  • Step 904 specifically includes: jointly detecting, according to the enhanced reference signal and the basic reference signal, whether the base station occupies a channel for downlink transmission.
  • the enhanced reference signal is also released on the basis of the basic signal, which greatly increases the density of the reference signal, so that the terminal can obtain the effective reference signal more conveniently and efficiently to determine the channel occupancy of the base station.
  • the method further includes: determining that a downlink transmission time interval where the enhanced reference signal is located is a starting position of a downlink transmission, where the base station occupies a channel for downlink transmission.
  • the enhanced reference signal is issued during a first downlink transmission time interval within the transmission opportunity for the terminal to determine a starting location for the downlink transmission. That is, for a transmission opportunity initiated by the base station, the terminal must determine the starting position of the downlink transmission, and does not transmit the enhanced reference signal during other downlink transmission time intervals within the transmission opportunity.
  • An embodiment of the present application also provides a non-transitory computer readable storage medium storing computer instructions that cause the computer to perform any of the method embodiments described above The method provided.
  • An embodiment of the present application also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions when the program instructions are When the computer is executed, the computer can perform the method provided by any of the above method embodiments.
  • Figure 10 shows a block diagram of a terminal of one embodiment of the present application.
  • the terminal 1000 of an embodiment of the present application includes: a first acquiring unit 1002, acquiring an enhanced reference signal issued by a base station; and a downlink transmission detecting unit 1004, detecting, according to the enhanced reference signal, whether the base station is The channel is occupied for downlink transmission.
  • the terminal 1000 further includes a second acquisition unit and a home position determining unit.
  • the second acquiring unit is configured to acquire a basic reference signal that is sent by the base station, where the basic reference signal includes one or more of a cell common reference signal, a demodulation reference signal, and a synchronization message signal, and the resource of the enhanced reference signal
  • the configuration is determined based on the basic reference signal.
  • the downlink transmission detecting unit 1004 is specifically configured to: jointly detect, according to the enhanced reference signal and the basic reference signal, whether the base station occupies a channel for downlink transmission.
  • the start position determining unit is configured to determine, when the base station occupies a channel for downlink transmission, that the downlink transmission time interval where the enhanced reference signal is located is a start position of the downlink transmission.
  • Figure 11 shows a block diagram of a terminal of another embodiment of the present application.
  • the terminal 1100 includes: a processor 1104; and a memory 1102.
  • the memory 1102 stores instructions executable by the processor 1104, and the processor 1104 is configured to invoke an instruction stored in the memory 1102 to perform the following operations:
  • Figure 12 shows a block diagram of a base station of another embodiment of the present application.
  • base station 1200 includes a transmitter 1222, a receiver 1221, a memory 1223, and a processor 1224 coupled to a transmitter 1222, a receiver 1221, and a memory 1223, respectively, in which a memory 1223 is stored for execution by the processor 1224.
  • the instructions are, and the processor 1224 is configured to invoke the instructions stored in the memory 1223 to perform the following operations:
  • the enhanced reference signal is transmitted during the downlink transmission, so that the terminal determines the channel occupancy of the base station according to the enhanced reference signal.
  • the technical solution of the present application is described in detail with reference to the accompanying drawings.
  • the technical solution of the present application can provide a higher reference signal density for the terminal, that is, the coverage enhancement of the reference signal is realized, so that the terminal can obtain the base station more conveniently and quickly.
  • the enhanced reference signal is issued to determine the channel occupancy of the base station, so that the terminal can perform effective downlink transmission detection according to the enhanced reference signal, thereby improving the effectiveness of the communication.
  • the word “if” as used herein may be interpreted as “when” or “when” or “in response to determining” or “in response to detecting.”
  • the phrase “if determined” or “if detected (conditions or events stated)” may be interpreted as “when determined” or “in response to determination” or “when detected (stated condition or event) “Time” or “in response to a test (condition or event stated)”.
  • terminals involved in the embodiments of the present application may include, but are not limited to, a personal computer (PC), a personal digital assistant (PDA), a wireless handheld device, a tablet computer, and a tablet computer.
  • PC personal computer
  • PDA personal digital assistant
  • Mobile phones MP3 players, MP4 players, etc.
  • the disclosed systems, devices, and methods 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.
  • multiple units or components may be combined. Or it 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 each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically 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 software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present application. Part of the steps.
  • 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, which can store program codes. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de détection de transmission en liaison descendante, une station de base et un terminal. Le procédé de détection de transmission en liaison descendante consiste à : émettre un signal de référence accentué pendant une transmission en liaison descendante pour permettre à un terminal de déterminer une condition d'occupation de canal d'une station de base en fonction du signal de référence accentué. La solution technique selon la présente invention peut fournir une densité plus élevée d'un signal de référence pour qu'un terminal permette une couverture accentuée du signal de référence, de telle sorte que le terminal peut acquérir le signal de référence accentué émis par une station de base de manière plus commode et rapide pour déterminer une condition d'occupation de canal de la station de base, ce qui facilite la détection efficace de la transmission en liaison descendante par le terminal en fonction du signal de référence accentué et améliore l'efficacité de la communication.
PCT/CN2018/080942 2017-03-28 2018-03-28 Procédé de détection de transmission en liaison descendante, station de base et terminal Ceased WO2018177332A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710194297.3A CN106789826B (zh) 2017-03-28 2017-03-28 下行传输检测方法、基站和终端
CN201710194297.3 2017-03-28

Publications (1)

Publication Number Publication Date
WO2018177332A1 true WO2018177332A1 (fr) 2018-10-04

Family

ID=58966884

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/080942 Ceased WO2018177332A1 (fr) 2017-03-28 2018-03-28 Procédé de détection de transmission en liaison descendante, station de base et terminal

Country Status (2)

Country Link
CN (1) CN106789826B (fr)
WO (1) WO2018177332A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110537385A (zh) * 2019-06-25 2019-12-03 北京小米移动软件有限公司 下行传输的检测方法、装置、设备及存储介质
CN113316968A (zh) * 2018-11-09 2021-08-27 株式会社Ntt都科摩 用户终端以及无线通信方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106789826B (zh) * 2017-03-28 2020-07-28 北京佰才邦技术有限公司 下行传输检测方法、基站和终端
CN109151893B (zh) * 2017-06-16 2022-02-18 展讯通信（上海）有限公司 物理广播信道的资源映射方法及装置、基站、存储介质
CN113873663A (zh) * 2017-09-29 2021-12-31 北京小米移动软件有限公司 参考信号的传输及接收方法、装置、基站和用户设备
US11039475B2 (en) * 2018-04-06 2021-06-15 Mediatek Inc. Detection of beginning of a transmission session in new radio unlicensed spectrum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160056935A1 (en) * 2014-08-22 2016-02-25 Qualcomm Incorporated Techniques for transmitting and receiving synchronization signals over an unlicensed radio frequency spectrum band
WO2016048227A2 (fr) * 2014-09-25 2016-03-31 Telefonaktiebolaget L M Ericsson (Publ) Procédé et appareil pour signal de référence de liaison montante amélioré dans des systèmes d'accès multiple avec écoute de porteuse
CN105939187A (zh) * 2016-06-02 2016-09-14 深圳市金立通信设备有限公司 一种未授权频谱下探测参考信号增强的方法及相关设备
CN106789826A (zh) * 2017-03-28 2017-05-31 北京佰才邦技术有限公司 下行传输检测方法、基站和终端

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9253768B2 (en) * 2012-10-08 2016-02-02 Qualcomm Incorporated Reference signals for an enhanced physical downlink control channel
WO2014069944A1 (fr) * 2012-11-01 2014-05-08 엘지전자 주식회사 Procédé et appareil d'émission/réception de données au sein d'un système de communication sans fil
EP2946519B1 (fr) * 2013-01-16 2022-08-17 Interdigital Patent Holdings, Inc. Amélioration du rendement spectral en liaison montante
CN104853367B (zh) * 2014-02-13 2018-07-24 普天信息技术有限公司 一种终端移动速度估计方法和装置
CN105227272B (zh) * 2014-06-28 2019-08-09 上海朗帛通信技术有限公司 一种大尺度mimo传输方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160056935A1 (en) * 2014-08-22 2016-02-25 Qualcomm Incorporated Techniques for transmitting and receiving synchronization signals over an unlicensed radio frequency spectrum band
WO2016048227A2 (fr) * 2014-09-25 2016-03-31 Telefonaktiebolaget L M Ericsson (Publ) Procédé et appareil pour signal de référence de liaison montante amélioré dans des systèmes d'accès multiple avec écoute de porteuse
CN105939187A (zh) * 2016-06-02 2016-09-14 深圳市金立通信设备有限公司 一种未授权频谱下探测参考信号增强的方法及相关设备
CN106789826A (zh) * 2017-03-28 2017-05-31 北京佰才邦技术有限公司 下行传输检测方法、基站和终端

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113316968A (zh) * 2018-11-09 2021-08-27 株式会社Ntt都科摩 用户终端以及无线通信方法
CN113316968B (zh) * 2018-11-09 2023-11-07 株式会社Ntt都科摩 终端、基站、系统以及无线通信方法
CN110537385A (zh) * 2019-06-25 2019-12-03 北京小米移动软件有限公司 下行传输的检测方法、装置、设备及存储介质
CN110537385B (zh) * 2019-06-25 2023-08-29 北京小米移动软件有限公司 下行传输的检测方法、装置、设备及存储介质

Also Published As

Publication number Publication date
CN106789826B (zh) 2020-07-28
CN106789826A (zh) 2017-05-31

Similar Documents

Publication Publication Date Title
WO2018177332A1 (fr) Procédé de détection de transmission en liaison descendante, station de base et terminal
CN103945447B (zh) 一种进行下行信道特性参数测量的方法及用户设备
EP3537784B1 (fr) Procédé de détection de bloc de signal de synchronisation, et procédé, appareil et système de transmission de bloc de signal de synchronisation
CN107735976B (zh) 用于解决冲突信号的方法和设备
CN108923901B (zh) 下行信道的译码方法、装置、存储介质和用户设备
US12328217B2 (en) Synchronization signal block transmitting and receiving method and device
CN106936558B (zh) 一种增强的探测参考信号映射的方法及装置
JP2019510414A5 (fr)
CN111726877B (zh) 数据传输方法、终端和基站
CN103181114B (zh) 一种参考信号的传输方法和装置
US12015572B2 (en) Communication method and communications apparatus
CN110149188A (zh) 参考信号的发送及接收方法、基站、终端、可读介质
WO2019029523A1 (fr) Procédé d'émission et de réception de signal et dispositif correspondant
CN108632840A (zh) 波束资源的配置方法、基站和终端设备
WO2018177331A1 (fr) Procédé de configuration de ressource, terminal, et station de base
CN113747497A (zh) 干扰抑制合并方法、资源指示方法及通信装置
CN111819814B (zh) 通信方法、装置、网络侧设备、终端和存储介质
WO2018228537A1 (fr) Procédé et appareil d'envoi et de réception d'informations
WO2022117087A1 (fr) Procédé et dispositif de positionnement sur liaison latérale (sl), et terminal
CN109391424B (zh) 一种数据发送方法、设备及系统
CN109121181B (zh) 系统消息的获取方法、用户设备和基站
WO2019062501A1 (fr) Procédé de configuration d'une sous-trame spéciale, procédé de détection, station de base, et terminal
CN114391287B (zh) 寻呼分组配置、寻呼检测方法、装置、接入网设备和终端
WO2018127158A1 (fr) Procédé de transmission de données, équipement de réseau et équipement terminal
CN115811452A (zh) 下行控制信道的信道估计方法、装置、设备及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18777838

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18777838

Country of ref document: EP

Kind code of ref document: A1