WO2024156094A1 - 上行传输控制方法及装置 - Google Patents

上行传输控制方法及装置 Download PDF

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Publication number
WO2024156094A1
WO2024156094A1 PCT/CN2023/073578 CN2023073578W WO2024156094A1 WO 2024156094 A1 WO2024156094 A1 WO 2024156094A1 CN 2023073578 W CN2023073578 W CN 2023073578W WO 2024156094 A1 WO2024156094 A1 WO 2024156094A1
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WIPO (PCT)
Prior art keywords
ptrs
transmission
dmrs
port
ports
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PCT/CN2023/073578
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English (en)
French (fr)
Inventor
高雪媛
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Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Priority to CN202380007937.9A priority Critical patent/CN116326131B/zh
Priority to PCT/CN2023/073578 priority patent/WO2024156094A1/zh
Priority to EP23918101.9A priority patent/EP4657958A4/en
Publication of WO2024156094A1 publication Critical patent/WO2024156094A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H04B7/06956—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping using a selection of antenna panels
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular to an uplink transmission control method and device.
  • Multi-antenna panel/multi-TRP transmission can be scheduled based on a single physical downlink control channel (PDCCH).
  • PDCH physical downlink control channel
  • PTRS phase tracking reference signals
  • the present disclosure proposes an uplink transmission control method and device.
  • enhanced indication under SFN transmission of PTRS can be implemented, thereby supporting the common phase error (CPE) estimation of terminal multi-antenna panels under the SFN scheme based on codebook (CB) configuration under simultaneous transmission from multiple antenna panels (STxMP), making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • CPE common phase error
  • a first aspect of the present disclosure provides an uplink transmission control method, which is executed by a user equipment UE, and includes: receiving transmission configuration information related to a phase tracking reference signal PTRS sent by a network device in a physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI in a scenario where multiple uplink antenna panels simultaneously transmit STxMP, and in a single frequency network SFN transmission mode with multiple transmission and reception points TRP scheduled by the network, wherein the transmission configuration information includes at least one of a maximum number of PTRS ports, a transmission precoding matrix indication TPMI indication field, a demodulation reference signal DMRS port indication field, and a PTRS-DMRS association relationship indication field; and
  • the actual PTRS transmission parameters used for PUSCH transmission are determined based on the PTRS-related transmission configuration information and the preset protocol rules, and PTRS is transmitted according to the SFN transmission mode at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, where the actual PTRS transmission parameters include the actual PTRS port number and the DMRS port used by the actual PTRS transmission port.
  • the DMRS port or port group corresponding to the TO of the corresponding PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • PTRS is sent on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets according to the SFN transmission mode, including: under the PUSCH multi-TRP SFN transmission mode, the same number of PTRS port data are sent on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets, wherein each PTRS port data is the same and is sent through the same one or more DMRS ports.
  • actual PTRS transmission parameters for PUSCH transmission are determined based on transmission configuration information and preset protocol rules, and PTRS is transmitted in accordance with the SFN transmission mode on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets, including: in response to different TPMI indication fields indicating different numbers of PTRS ports actually corresponding to the precoders, based on the maximum number of PTRS ports and the association relationship between PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field, determining the actual PTRS transmission parameters according to the preset protocol rules; based on the actual PTRS transmission parameters, PTRS is transmitted in accordance with the SFN transmission mode on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the preset protocol rules include any of the following items: the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI, the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets; the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/T
  • the method further includes: receiving RRC signaling sent by a network device, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS is actually sent on a single port on different PUSCH TOs and uses the indicated DMRS port to send the PTRS.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual sending of the PTRS in one of the following ways: 2 bits are used to indicate the two associated DMRS ports; 1 bit is used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port; wherein, sending the PTRS on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets in accordance with the SFN transmission mode includes: determining the DMRS port used by the actual sending PTRS port based on the PTRS-DMRS association relationship indication field, and using the DMRS port to send the PTRS on the TO of different PUSCHs.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual sending of the PTRS in one of the following ways: using 2 bits to indicate the two associated DMRS ports; using 1 bit to indicate only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port; wherein, sending PTRS on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets according to the SFN transmission mode includes: determining the DMRS port corresponding to the first actual sending PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, determining the DMRS port corresponding to the second actual sending PTRS port on the TO of the PUSCH
  • the DMRS port determined based on the default rule is any one of the following: the other of the first two DMRS ports; any one of the other DMRS ports when RANK>2; any one of the two DMRS ports sharing the same PTRS port.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is sent on the same DMRS port on different TOs of antenna panels/TRP/beam TCI state/SRS resource set/PUSCH at the same time.
  • different SRS resource sets are associated with PUSCH transmission on a multi-antenna panel, and the correspondence between different SRS resource sets and SRI/TPMI indication fields is indicated by an SRS resource set indication field.
  • a second aspect of the present disclosure provides an uplink transmission control method, which is performed by a network device and includes:
  • the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI sends transmission configuration information related to the phase tracking reference signal PTRS to the UE when the network is scheduled as a single frequency network SFN transmission mode with multiple transmission and reception points TRP, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the actual PTRS reception parameters for PUSCH transmission determined based on the PTRS-related transmission configuration information and preset protocol rules are used to receive PTRS at the transmission timing TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets in accordance with the SFN transmission mode, wherein the actual PTRS reception parameters include the actual number of PTRS ports and the DMRS port corresponding to the actual reception of
  • the DMRS port or port group corresponding to the TO of the corresponding PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • receiving PTRS in accordance with the SFN transmission mode on TOs of PUSCHs corresponding to different antenna panels/TRPs/beam TCI states/SRS resource sets includes:
  • the same number of PTRS port data is received on the TO of the PUSCH corresponding to different antenna panels/TRPs/beam TCI states/SRS resource sets, where each PTRS port data is the same and is received through the same one or more DMRS ports.
  • determining the actual PTRS reception parameters for PUSCH transmission includes:
  • SFN reception is performed separately on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the actual PTRS reception parameters determined based on the preset protocol rules.
  • the preset protocol rules include any of the following items: the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI, the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS port used for actually sending the PTRS port are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets; the actual number of PTRS ports is the TPMI pair associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs.
  • the actual number of PTRS ports is the minimum value of the corresponding PTRS port numbers, and the actual number of PTRS ports determined and the DMRS port used for actually sending the PTRS port are simultaneously applied to the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets; the actual number of PTRS ports is the maximum value of the PTRS port numbers corresponding to the TPMIs associated with the TOs of different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCHs, and the actual number of PTRS ports determined and the DMRS port used for actually sending the PTRS port are simultaneously applied to the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the method further includes: sending RRC signaling to the UE, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS actually corresponds to a single port reception on different PUSCH TOs and uses the indicated DMRS port for PTRS reception.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways: 2 bits are used to indicate the two associated DMRS ports; 1 bit is used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port; wherein, receiving the PTRS in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRPs/beam TCI states/SRS resource sets includes: determining the DMRS port used by the actual receiving PTRS port based on the PTRS-DMRS association relationship indication field, and using the DMRS port to receive the PTRS on the TO of different PUSCHs.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways: using 2 bits to indicate the two associated DMRS ports; using 1 bit to indicate only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port; wherein, receiving PTRS in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets includes: determining the DMRS port corresponding to the first actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, determining the DMRS port corresponding to the second actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/
  • the DMRS port determined based on the default rule is any one of the following: the other of the first two DMRS ports; any one of the other DMRS ports when RANK>2; any one of the two DMRS ports sharing the same PTRS port.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is received on the same DMRS port on different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH TOs at the same time.
  • different SRS resource sets are associated with PUSCH transmission on a multi-antenna panel, and the correspondence between different SRS resource sets and SRI/TPMI fields is indicated by an SRS resource set indication field.
  • the third aspect of the present disclosure provides an uplink transmission control device, which is configured in a UE, and includes a transceiver module, which is used to: receive the transmission configuration information related to the phase tracking reference signal PTRS sent by the network device in the STxMP scenario where multiple uplink antenna panels simultaneously transmit a physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI, and in the single frequency network SFN transmission mode where the network is scheduled as a multi-transmission and receiving point TRP, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; and for the base For PUSCH transmission in the codebook, PTRS is sent according to the SFN transmission mode on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • a transceiver module which is used to: receive the transmission configuration information related to the
  • the actual PTRS sending parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and the preset protocol rules.
  • PTRS is sent according to the SFN transmission mode on the transmission timing TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, where the actual PTRS sending parameters include the actual number of PTRS ports and the DMRS ports used by the actual sending PTRS ports.
  • the fourth aspect embodiment of the present disclosure provides an uplink transmission control device, which is configured in a network device, and the device includes a transceiver module, which is used for: in the uplink multi-antenna panel simultaneous transmission STxMP scenario, the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI is sent to the UE in the network scheduling of multiple transmission and receiving point TRP single frequency network SFN transmission mode, and the transmission configuration information related to the phase tracking reference signal PTRS is sent, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for the codebook-based
  • the actual receiving parameters of PTRS for PUSCH transmission are determined based on the transmission configuration information and the preset protocol rules, and SFN reception is performed on the TO of PUSCH corresponding to different antenna panels, wherein the actual receiving parameters of PTRS include the actual number of PTRS
  • the fifth aspect embodiment of the present disclosure provides a communication device, including: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer executable instructions on the memory, and can implement the uplink transmission control of the above-mentioned first aspect embodiment or the second aspect embodiment.
  • the sixth embodiment of the present disclosure proposes a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the uplink transmission control of the above-mentioned first embodiment or second embodiment can be implemented.
  • the disclosed embodiments provide an uplink transmission control method and device.
  • the UE receives PTRS-related transmission configuration information sent by a network device, wherein the transmission configuration information includes two or more groups of DCI information indication fields for multi-TRP SFN transmission, wherein each group of DCI information indication fields includes at least a PTRS maximum port number, a TPMI indication field, and a PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the actual PTRS transmission parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules, and PTRS is transmitted in accordance with the SFN transmission mode at the transmission timing TO of the PUSCH corresponding to different antenna panels/TRPs/beam TCI states/sounding reference signal SRS resource sets, wherein the actual PTRS transmission parameters include the actual PTRS port number and the DMRS
  • the solution provided in the present disclosure can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration of SFN solution under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • FIG1 is a schematic diagram of implementing multi-TRP transmission based on a single DCI according to an embodiment of the present disclosure
  • FIG2 is a schematic diagram of a flow chart of uplink transmission control according to an embodiment of the present disclosure
  • FIG3 is a schematic diagram of a flow chart of uplink transmission control according to an embodiment of the present disclosure.
  • FIG4 is a schematic diagram of a flow chart of uplink transmission control according to an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of a flow chart of uplink transmission control according to an embodiment of the present disclosure.
  • FIG6 is a block diagram of an uplink transmission control device according to an embodiment of the present disclosure.
  • FIG7 is a block diagram of an uplink transmission control device according to an embodiment of the present disclosure.
  • FIG8 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • operations related to multiple TRPs are introduced mainly for PDSCH transmission.
  • the operations related to multiple TRPs can include single DCI operations and multiple DCI operations.
  • a single DCI Single DCI, S-DCI
  • a single PDCCH can be used to schedule multiple PDSCH transmissions from multiple TRPs.
  • FIG1 is a schematic diagram of implementing multi-TRP transmission based on a single DCI according to an embodiment of the present disclosure.
  • two TRPs (TRP 1 and TRP 2) are provided to communicate with a UE having multiple antenna panels (Panel 1 and Panel 2).
  • the transmission can be scheduled based on one DCI carried by one PDCCH channel, or different DCIs carried by different PDCCHs can be considered for separate scheduling.
  • operations related to multiple TRPs may include single DCI operations and multiple DCI operations.
  • operations related to multiple TRPs may include operations related to multiple TRPs for downlink (e.g., PDSCH) and operations related to multiple TRPs for uplink (e.g., PUSCH).
  • PDSCH downlink
  • PUSCH uplink
  • 5G/NR Rel-16 operations related to multiple TRPs are mainly introduced for PDSCH transmission, but operations related to multiple TRPs for PUSCH transmission are not defined.
  • uplink enhancement supports the repeated transmission of PUSCH/PUCCH channels by adopting time division multiplexing (TDM) in different uplink beam directions to different base station-side TRPs for uplink channel transmission.
  • TDM time division multiplexing
  • a terminal with multiple panels will generally be configured with multiple physical panels. Different panels may have different capabilities, such as having different numbers of SRS ports.
  • the maximum number of data transmission layers supported by each panel may not be the same. For example, one panel supports a maximum of 2 layers of transmission, while another panel supports a maximum of 4 layers of transmission.
  • the network scheduler will determine whether the terminal is currently suitable for simultaneous uplink transmission of multiple panels. If the terminal is currently suitable for simultaneous uplink transmission of multiple panels and is scheduled at the same time, the network will directly or indirectly indicate the relevant transmission parameters, including terminal-specific beam indication information, the number of data layers used for transmission, the allocation of DMRS ports used, and precoding indication information, etc. Therefore, it is necessary to determine the configuration and specific indication issues of the PTRS port under S-DCI scheduling.
  • the transmission schemes that may be supported for simultaneous uplink transmission are uplink synchronous transmission for multi-antenna panels Panel/receiving and transmitting points TRP/transmission configuration indication TCI.
  • the bottleneck of the communication system is still the uplink transmission rate and coverage, so the system enhancement direction of the R18 standard is mainly to consider using multiple panel terminals for simultaneous uplink transmission in the Multi-TRP scenario to increase the uplink rate and further improve the reliability of transmission.
  • the transmission can be scheduled based on a DCI carried by a PDCCH channel, or different DCIs carried by different PDCCHs can be considered for separate scheduling.
  • the collaborative transmission of a transport block (Transport Block, TB) based on the PUSCH transmission of a single DCI (S-DCI) includes a variety of different transmission schemes.
  • the synchronous transmission scheme currently considered is mainly based on SDM or FDM multiplexing without using the panel channel. The following is a brief description of each transmission scheme:
  • SDM Space Division Multiplexing
  • a TB of PUSCH is sent on the same time-frequency resources to two different TRPs through the corresponding demodulation reference signal (DMRS) ports or port combinations allocated on different panels.
  • DMRS demodulation reference signal
  • TO Transmission Occasions
  • the SDM scheme is further divided into two schemes, SDM-A and SDM-B.
  • SDM-A scheme different parts of a TB of PUSCH are sent on the same time-frequency resources to two different TRPs through the corresponding DMRS ports or port combinations allocated on different Panels, and different Panels/TRPs/TOs are associated with different TCI states.
  • FDM frequency division multiplexing
  • different parts of a TB of PUSCH are sent on non-overlapping frequency domain resources on the same time domain resources to two different TRPs through the same DMRS port or port combination allocated on different Panels, and different Panels/TRPs/TOs are associated with different TCI states;
  • the repetition of the same TB of PUSCH corresponding to different RV versions is sent on non-overlapping frequency domain resources on the same time domain resources to two different TRPs through the same DMRS port or port combination allocated on different Panels, and different Panels/TRPs/TOs are associated with different TCI states.
  • Another scheme is the spatial multiplexing SFN scheme: a TB of PUSCH is sent on the same time-frequency resources to two different TRPs through the same DMRS port or port combination allocated on different Panels, and different Panels/TRPs/TOs are associated with different TCI states.
  • the scheme exemplarily shown in FIG1 is a multi-TRP transmission using the SDM transmission method, which uses different antenna ports to transmit different data layers.
  • the same antenna port can be used to transmit the same data layer, which will not be repeated here.
  • Simultaneous uplink PUSCH transmission based on multiple panels usually supports one or more of the above solutions.
  • the transmission schemes of DMRS and PTRS also need to be determined.
  • the SFN transmission scheme is currently mainly considered, that is, using the same DMRS port for transmission on different panels.
  • PTRS the impact of different schemes of SFN transmission and non-SFN transmission also needs to be considered.
  • the same PTRS port will be associated with the same group of DMRS ports corresponding to different SRS resource sets, but the actual number of PTRS ports corresponding to the TPMI indicator fields associated with different SRS resource sets may not be consistent, which will cause the actual PTRS transmission to be not SFN transmission. Therefore, it is necessary to consider how to solve the SFN transmission of PTRS used to support CBPUSCH.
  • a technical solution is provided that can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under SFN scheme under codebook-based configuration under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • Fig. 2 shows a schematic diagram of a process of uplink transmission control according to an embodiment of the present disclosure. As shown in Fig. 2, the method may be executed by a UE and may include the following steps.
  • the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI receives the transmission configuration information related to the phase tracking reference signal PTRS sent by the network device in the single frequency network SFN transmission mode with multiple transmission and receiving points TRP, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field.
  • the transmission configuration information may dynamically include two or more groups of DCI information indication fields for multi-TRP SFN transmission.
  • Each group of information indication fields at least includes a PTRS maximum port number, a transmission precoding matrix indication TPMI indication field, and an indication field for an association relationship between PTRS and a demodulation reference signal DMRS, but the present disclosure is not limited thereto, and each group of information indications may also include other information indication fields.
  • the TCI beam indication information in a single DCI indicates two or more beams and the transmission configuration information may include two or more TPMI indication fields, wherein each TPMI indication field is used to indicate the precoding matrix of the PUSCH transmission in the corresponding beam direction, then the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a codebook-based PUSCH transmission.
  • a TPMI indication field indicates the precoding matrix used in the PUSCH transmission.
  • the TCI beam indication information in a single DCI indicates two or more beams and the transmission configuration information may include two or more SRI indication fields, wherein each SRI indication field is used for one or more SRS resources carrying precoding information in the SRS resource set allocated for PUSCH transmission in the corresponding beam direction, then the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a non-codebook-based PUSCH transmission.
  • an SRI indication field indicates one or more SRS resources selected from the SRS resource set allocated for the PUSCH transmission.
  • the corresponding spatial filter is selected for PUSCH transmission through SRI indication, that is, PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • SRI indication PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • TCI or Spatial Relation Info corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • multiple single-port SRS resources in an SRS resource set carry the PUSCH precoding information calculated and recommended for use by the terminal.
  • Each SRS resource carries the precoding information used for a corresponding layer of data.
  • the base station performs scheduling selection for the precoding information reported by the terminal by measuring and selects the precoding information through the SRI indication, that is, selects one or more SRS resources in the corresponding SRS resource set.
  • the terminal uses the precoding corresponding to one or more corresponding SRS resources as the pre
  • S202 for codebook-based PUSCH transmission, determine the actual PTRS transmission parameters used for PUSCH transmission based on PTRS-related transmission configuration information and preset protocol rules, and transmit PTRS according to the SFN transmission mode at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, wherein the actual PTRS transmission parameters include the actual PTRS port number and the DMRS port used by the actual PTRS transmission port.
  • the UE can determine the actual sending parameters of the PTRS based on the maximum number of PTRS ports and the association relationship between the PTRS and DMRS ports, according to preset protocol rules, including but not limited to the actual number of PTRS ports and the DMRS ports corresponding to the actual sending of the PTRS.
  • the maximum number of PTRS ports may be configured at a high level, such as through RRC signaling, which is not limited in the embodiment of the present disclosure.
  • the UE receives PTRS-related transmission configuration information sent by the network device, wherein the transmission configuration information includes two or more groups of DCI information indication fields for multi-TRP SFN transmission, wherein each group of DCI information indication fields includes at least a PTRS maximum port number, a TPMI indication field, and a PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the actual PTRS transmission parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and preset protocol rules, and PTRS is transmitted in accordance with the SFN transmission mode at the transmission timing TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, wherein the actual PTRS transmission parameters include the actual PTRS port number, and the
  • the solution provided in the present disclosure can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration of SFN solution under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • Fig. 3 shows a schematic diagram of a process of uplink transmission control according to an embodiment of the present disclosure. As shown in Fig. 3, the method may be executed by a UE and may include the following steps.
  • the transmission configuration information related to the reference signal PTRS wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, a transmission precoding matrix indication TPMI indication field, a DMRS port indication field, and a PTRS-DMRS association relationship indication field.
  • whether to transmit PTRS in the uplink is also controlled by configuring high-level parameters.
  • the uplink UE does not transmit PTRS.
  • the high-level parameter UL-PTRS-present is configured for the UE, and the number of PTRS ports is 1 or 2, then the PTRS-DMRS association indication field in UL DCI0_1/0_2 indicates that a DMRS port is associated with this PTRS port.
  • the maximum number of PTRS ports is obtained by configuring maxNrofPorts in the high-level parameter PTRS-UplinkConfig to 'n2'. If the maximum number of PTRS ports indicated is 2, the network side divides the DMRS ports corresponding to the SRS resources into two groups and recommends association relationships respectively.
  • the transmission configuration information includes a DMRS port indication field.
  • the DMRS field of the DCI may indicate the DMRS port information used for the PUSCH transmission in each beam direction. For example, when the indicated DMRS port is ⁇ 0,1 ⁇ and the corresponding transmission scheme is FDM or SFN transmission, the DMRS port corresponding to the PUSCH transmission in each beam direction uses port ⁇ 0,1 ⁇ , that is, TRI is 2. For example, when the corresponding indicated DMRS port is ⁇ 0,1 ⁇ and the corresponding transmission scheme is SDM transmission, the DMRS port corresponding to the PUSCH transmission in each TCI beam direction may also be determined according to predefined rules.
  • the possible port allocation is that the PUSCH transmission in the first beam direction uses the DMRS port ⁇ 0 ⁇ , and the corresponding TRI is 1, and the PUSCH transmission in the second beam square uses the DMRS port ⁇ 1 ⁇ , and the corresponding TRI is 1.
  • the DMRS port or port group corresponding to the TO of the PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • the DMRS port indication fields associated with different SRS resource sets indicate the same DMRS port/port group, and TPMI1/TPMI2 are respectively associated with the first/second SRS resource sets corresponding to different panels/TRPs/TCIs. That is, the correspondence between TPMI and SRS resource sets can be TPMI 1 corresponding to the first SRS resource set, or TPMI 1 corresponding to the second SRS resource set.
  • different SRS resource sets are associated with PUSCH transmissions on a multi-antenna panel, and the correspondence between different SRS resource sets and SRI/TPMI indication fields is indicated by an SRS resource set (SRS resource set indicator) indication field.
  • SRS resource set SRS resource set indicator
  • the SRS resource set indicator field is used to dynamically indicate STRP and MTRP transmission scheduling.
  • the first SRI/TPMI field can be associated with any SRS resource.
  • the SRS resource set indicator field is used to indicate the dynamic switching between STRP and MTRP through different code points. See Table 1 below.
  • different SRS resource sets can be associated with PUSCH transmissions on multiple panel/TRP/beam TCI states, and the correspondence between SRS resource sets and TPMI/SRI domains is defined by the SRS resource set indicator domain.
  • the current protocol definition for R17 is that the first TPMI domain corresponds to the first SRS resource set, and the second TPMI domain corresponds to the second SRS resource set.
  • the specific correspondence for R18 can be that the first TPMI domain corresponds to the first SRS resource set, or the first TPMI domain corresponds to the second SRS resource set.
  • a codebook preconfiguration table may be determined based on the codebook parameter configuration of PUSCH transmission in the corresponding beam direction of multiple panels and the codebook subset restriction of PUSCH transmission in the corresponding beam direction.
  • the number of bits occupied by each TPMI indication field is determined based on the number of available TPMI combinations in the codebook preconfiguration table.
  • the TCI beam indication information carried in a single DCI sent by the network device to the UE indicates two or more beams and the transmission configuration information includes two or more TPMI indication fields
  • the single DCI is used for multi-antenna panel multi-TRP transmission
  • the multi-antenna panel multi-TRP transmission is a codebook-based PUSCH transmission.
  • the codebook-based PUSCH transmission in each beam direction corresponds to a TPMI indication field, that is, a TPMI indication field can indicate the precoding matrix of the codebook-based PUSCH transmission in a beam direction.
  • the network device is able to determine the codebook parameter configuration and codebook subset restriction of the PUSCH transmission in each beam direction, thereby determining the codebook preconfiguration table for the PUSCH transmission in each beam direction, and each TPMI indication field included in the transmission configuration information carried in the DCI sent by the network device to the UE can carry an index, which is used to indicate TPMI and TRI at the same time according to the codebook preconfiguration table.
  • the number of bits occupied by each TPMI indication field is determined according to the number of available TPMI combinations in the corresponding codebook preconfiguration table.
  • the codebook parameter configuration can configure the number of antenna ports, whether to use transform precoding, and maxRank, and the codebook subset restrictions include three types: fully And Partial And Non Coherent; partial And Non Coherent; non Coherent.
  • step S201 in the above embodiment are also applicable to step S301 in this embodiment, and the principles are the same, which will not be elaborated here.
  • the actual PTRS transmission parameters for PUSCH transmission determined based on the transmission configuration information and the preset protocol rules are used to send the same number of PTRS port data on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the correspondence between the PTRS port and the DMRS port corresponding to the TPMI domain that determines the number of PTRS ports can be used and applied to the PTRS transmission of the two panels, that is, the corresponding PTRS is sent on the same DMRS port.
  • the PTRS actual transmission parameters include the actual PTRS port number and the DMRS port corresponding to the actual PTRS transmission, wherein the actual PTRS port number is less than or equal to the PTRS maximum port number.
  • each PTRS port data is the same and is sent through the same one or more DMRS ports.
  • the DMRS port indication fields of different sounding reference signal SRS resource sets corresponding to different antenna panels indicate the same DMRS port or port group to achieve multi-TRP SFN transmission.
  • the actual PTRS transmission parameters for PUSCH transmission determined based on the transmission configuration information and the preset protocol rules, and the transmission of PTRS in accordance with the SFN transmission mode on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets specifically include: in response to the different numbers of PTRS ports actually corresponding to the precoders indicated by different TPMI indication fields, based on the maximum PTRS port number and the association relationship between PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field, determining the PTRS actual transmission parameters according to the preset protocol rules; based on the PTRS actual transmission parameters, transmitting PTRS in accordance with the SFN transmission mode on the TO of PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the actual number of PTRS ports N corresponding to the PUSCH is determined by the preset protocol rule.
  • the preset protocol rules are described in detail below. In some optional embodiments of the present disclosure, the preset protocol rules include any of the following:
  • the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI
  • the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs
  • the actual number of PTRS ports determined and the DMRS ports used to actually send the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the actual number of PTRS ports determined and the DMRS ports used to actually send the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • N is determined by the number of PTRS ports corresponding to the fixed TPMI domain, such as the TPMI1 indication domain, N is equal to N1, and the actual number of PTRS ports determined and the DMRS ports used to actually send the PTRS ports are simultaneously applied to different panels.
  • the actual number of PTRS ports determined by the above rules is N, and each PTRS port specifically corresponds to a DMRS port.
  • the actual number of ports sent is N, and the DMRS ports corresponding to each port are the same, thereby realizing SFN transmission of PTRS.
  • the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the specific TPMI that takes effect can be specified by predefinition or network configuration. It should be understood that in some optional embodiments of the present disclosure, the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs are different, which will not be elaborated in this disclosure.
  • the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used to actually send the PTRS ports are simultaneously applied to different antenna panels/TRPs/beam TCI states/SRS
  • N is equal to the smaller value of the number of PTRS ports corresponding to TPMI1/TPMI2, that is, min ⁇ N1,N2 ⁇ , and the determined actual number of PTRS ports and the DMRS port used by the actual sending PTRS port are applied to different panels at the same time.
  • the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • N is equal to the larger value of the number of PTRS ports corresponding to TPMI1/TPMI2, i.e., max ⁇ N1,N2 ⁇ , and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to different panels.
  • the present disclosure is not limited to other optional modes except the above optional modes.
  • the data layer of data transmission corresponds to the DMRS port used for demodulation.
  • the design of DMRS for data channels (PDSCH/PUSCH) in the NR system mainly includes the design of Front-load DMRS and Additional DMRS.
  • front-load DMRS can obtain channel estimation performance that meets demodulation requirements with lower overhead.
  • front-load DMRS can be configured as up to two OFDM symbols.
  • the mobile speed considered by the NR system can reach up to 500km/h.
  • the port characteristics of PTRS and DMRS are related. When there are multiple DMRS ports, it is necessary to specify which PTRS port and which DMRS ports have the same port parameters, that is, the association relationship between the PTRS and DMRS ports is specified through the association relationship indication field of PTRS and DMRS.
  • the number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source requires a PTRS port for phase estimation. Therefore, NR15/16 supports 1 PTRS port for downlink and 2 PTRS ports for uplink. Whether to transmit PTRS in the uplink can be controlled by configuring high-level parameters. If the phaseTrackingRS is not configured for the UE in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS. If the phaseTrackingRS is not configured for the UE in the high-level parameter DMRS-UplinkConfig, the uplink UE does not transmit PTRS.
  • the PTRS-DMRS association indication field in UL DCI0_1/0_2 indicates that a DMRS port is associated with this PTRS port.
  • Table 18 shows the PTRS single port case (see Table 7.3.1.1.2-25: PTRS-DMRS association for UL PTRS port 0 in the protocol).
  • Table 19 the association relationship between PTRS and DMRS in different directions is indicated by the least significant bit (Least Significant Bit, LSB) and the most significant bit (Most Significant Bit, MSB).
  • Table 20 below shows the situation of PTRS two ports (see protocol Table 7.3.1.1.2-26: PTRS-DMRS association for UL PTRS ports 0and 1).
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS is actually sent on the TO of different PUSCHs on a single port and uses the indicated DMRS port to send the PTRS.
  • the DMRS has more than one data layer during transmission.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual transmission of the PTRS in one of the following ways:
  • Two bits are used to indicate the two associated DMRS ports (this method can be used for the case where TPMI corresponds to a fully coherent codeword);
  • One bit is used to indicate one of the first two DMRS ports or one of the DMRS ports that share the same PTRS port (this method can be used for the case where the TPMI corresponds to a partially coherent codeword);
  • the UE may determine the DMRS port used to actually send the PTRS port based on the PTRS-DMRS association relationship indication field, and use the DMRS port to send the PTRS on different PUSCH TOs respectively.
  • 2 bits can be used to indicate a specific DMRS port based on Table 2 (Table 7.3.1.1.2-25) above; or 1 bit can be used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual transmission of the PTRS in one of the following ways:
  • Two bits are used to indicate the two associated DMRS ports (this method can be used for the case where TPMI corresponds to a fully coherent codeword);
  • Only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port is indicated with 1 bit (this method may be applicable to the case where the TPMI corresponds to a partially coherent codeword).
  • the UE can determine the DMRS port corresponding to the first actual sending PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, and determine the DMRS port corresponding to the second actual sending PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the default rules, and send PTRS respectively.
  • PTRS port 0 means the actual sending PTRS port 0, the first PTRS port
  • PTRS port 1 means the actual sending PTRS port 1, the second actual sending PTRS port.
  • the DMRS port determined based on the default rule is any of the following:
  • 2 bits can be used to indicate a specific DMRS port based on Table 4 (Table 7.3.1.1.2-26) above; or 1 bit can be used to indicate only one of the first two DMRS ports, or only one of the first two DMRS ports that share the same PTRS port; the other PTRS port is sent according to the default rule, for example, the other of the first two DMRS ports, or the first of the other DMRS ports when RANK>2, or the first of the two DMRS ports that fixedly share the same PTRS port, which is not limited by the present disclosure.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is sent on the same DMRS port on different TOs of antenna panels/TRP/beam TCI state/SRS resource set/PUSCH at the same time.
  • the maximum number of PT-RS ports is obtained by configuring maxNrofPorts in the high-level parameter PTRS-UplinkConfig to 'n2'. If the indicated maximum number of PTRS ports is 2, the network side divides the DMRS ports corresponding to the SRS resources into two groups, and based on the above rules, recommends association relationships respectively.
  • the PDSCH transmission is enhanced. Since data transmission includes scheduling feedback of uplink and downlink channels, in the URLLC research, only enhancing the downlink data channel cannot guarantee the overall service performance. In the R17 research, the downlink control channel PDCCH and the uplink control channel PUCCH and data channel PUSCH continue to be enhanced.
  • Phase noise is caused by the execution of the local oscillator, which destroys the orthogonality of each subcarrier in the OFDM system.
  • CPE common phase error
  • ICI inter-carrier interference
  • the PTRS signal is designed for CPE estimation.
  • PTRS is configured by the network to the terminal as a UE-specific reference signal.
  • PTRS is used to track the phase noise introduced by the local oscillator in the gNB and UE.
  • PTRS can be regarded as an extension of DMRS. They have a close relationship, such as using the same precoding, port association, orthogonal sequence generation, QCL relationship, etc.
  • the number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source requires a PTRS port for phase estimation.
  • the table above can be used to determine which DMRS corresponds to which different layers in the codebook indicated in the TPMI.
  • the DMRS port indication field of the SRS resource set is used to indicate a group of DMRS ports for demodulation used for PUSCH transmission, and the UE sends according to the instructions of the base station.
  • the port groupings of the codewords actually corresponding to the TPMI are also different. For example, one of the codewords corresponds to a fully coherent codeword, and the corresponding PTRS port is 1, and the other corresponding codeword is 2.
  • the PTRS is sent as 1 on one panel and as 2 on the other.
  • the network is configured to perform uplink transmission in SFN transmission mode
  • the DMRS ports sent on the two panels are the same group. That is, the PUSCH sent by panel 0 and the PUSCH sent by panel 1 use the same set of DMRS ports, which is obviously contradictory. Therefore, in the uplink simultaneous transmission under SFN, all reference signals and data are consistent. Then, when the PTRS port corresponding to the TPMI indication is inconsistent under the existing protocol, the solution disclosed in this disclosure can effectively resolve the conflict.
  • the enhanced indication of PTRS under SFN transmission can be realized, thereby supporting the CPE estimation of the terminal multi-antenna panel under the codebook-based configuration of the SFN scheme under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • the application of multiple TRP/PANELs in base stations is mainly to improve the coverage at the edge of the cell, provide a more balanced service quality within the service area, and use different methods to collaborate to transmit data between multiple TRP/PANELs.
  • network deployment with a large number of distributed access points plus centralized baseband processing will be more conducive to providing a balanced user experience rate and significantly reduce the latency and signaling overhead caused by handover.
  • various occlusion/blocking effects can be better overcome, ensuring the robustness of link connections, which is suitable for URLLC services to improve transmission quality and meet reliability requirements.
  • Fig. 4 shows a schematic diagram of a process of uplink transmission control according to an embodiment of the present disclosure. As shown in Fig. 4, the method can be executed by a network device.
  • SRS resource indication (SRI) of the bit is used to select the SRS resource.
  • the network device determines the precoding matrix TPMI and the number of transmission layers RI used for the actual transmission of the terminal based on the measurement of the uplink CSI, and configures and notifies the terminal through the TPMI indication field.
  • the data of the terminal in the next uplink transmission needs to be precoded using the TPMI and RI specified by the network side.
  • the precoded data is mapped to the corresponding antenna port according to the spatial direction indication information (spatial filter SpatialRelationInfo) corresponding to the SRS resource indicated by SRI.
  • spatial direction indication information spatial filter SpatialRelationInfo
  • Different SRS will use different spatial filters for transmission, so the precoded data of the terminal needs to be filtered by the spatial filter used by the SRS indicated by SRI. In this way, the transmission of uplink data from single layer to full rank can be supported.
  • Table 21 shows an example of a method for indicating multiple SRS resources for SRI of PUSCH transmission based on the codebook
  • Table 22 shows an example of a signaling indication method for TPMI and RI of single-layer transmission, taking 4 antenna ports as an example, respectively, for different UE capabilities (i.e., corresponding to 4 antenna ports, the configuration with 1 transmission layer: precoding information TPMI and transmission layer number RI (when DFTs-OFDM precoding is used, and when DFTs-OFDM precoding is not used and the number of transmission layers is 1)).
  • UE capabilities are divided into three types: full correlation, partial correlation and uncorrelated, which characterize the correlation capabilities of antenna ports.
  • Table 23 exemplarily shows the codewords corresponding to single-layer transmission of 4 antenna ports (4-antenna single-stream codebook under uplink DFT-S-OFDM waveform).
  • the port groupings of the codewords actually corresponding to the TPMIs are also different.
  • one of the codewords corresponds to a fully coherent codeword, and the corresponding PTRS port is 1, and the other codeword is 2.
  • the PTRS is sent, it is sent as 1 on one panel, and the other is sent as 2.
  • the network configuration uses the SFN transmission mode for uplink transmission, the DMRS ports sent by the two panels are the same group, that is, the PUSCH sent by panel 0 and the PUSCH sent by panel 1 use the same group of DMRS ports.
  • the UE sends according to the instructions of the base station a conflict will occur. Therefore, in the uplink simultaneous transmission under SFN, all reference signals and data are consistent. Then, when the PTRS ports corresponding to the TPMI indication are inconsistent under the existing protocol, the solution disclosed in the present invention can effectively resolve the conflict.
  • the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI sends transmission configuration information related to the phase tracking reference signal PTRS to the UE in the network scheduling as a single frequency network SFN transmission mode with multiple transmission and receiving points TRP, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field.
  • a network device may configure transmission configuration information for a UE.
  • the transmission configuration information may dynamically include two or more groups of DCI information indication fields for multi-TRP SFN transmission.
  • Each group of information indication fields at least includes a PTRS maximum port number, a transmission precoding matrix indication TPMI indication field, and an indication field for an association relationship between PTRS and a demodulation reference signal DMRS, but the present disclosure is not limited thereto, and each group of information indications may also include other information indication fields.
  • the TCI beam indication information in a single DCI indicates two or more beams and the transmission configuration information may include two or more TPMI indication fields, wherein each TPMI indication field is used to indicate the precoding matrix of the PUSCH transmission in the corresponding beam direction, then the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a codebook-based PUSCH transmission.
  • a TPMI indication field indicates the precoding matrix used in the PUSCH transmission.
  • the TCI beam indication information in a single DCI indicates two or more beams and the transmission configuration information may include two or more SRI indication fields, wherein each SRI indication field is used for one or more SRS resources carrying precoding information in the SRS resource set allocated for PUSCH transmission in the corresponding beam direction.
  • the single DCI is used for multi-antenna panel multi-TRP transmission, and the multi-antenna panel multi-TRP transmission is a non-codebook-based PUSCH transmission.
  • an SRI indication field indicates one or more SRS resources selected from the SRS resource set allocated for the PUSCH transmission.
  • the corresponding spatial filter is selected for PUSCH transmission through SRI indication, that is, PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • SRI indication PUSCH uses the spatial relationship information (TCI or Spatial Relation Info) corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • TCI or Spatial Relation Info corresponding to the SRS resource selected by SRI as the spatial filter used for transmission.
  • multiple single-port SRS resources in an SRS resource set carry the PUSCH precoding information calculated and recommended by the terminal.
  • Each SRS resource carries the precoding information used for a corresponding layer of data.
  • the base station performs scheduling selection by measuring the precoding information reported by the terminal and selects the precoding information through SRI indication, that is, in the corresponding SRS resource One or more SRS resources are selected from the source set. After receiving the SRI indication from the base station, the terminal uses the precoding corresponding to the one or
  • actual PTRS reception parameters for PUSCH transmission are determined based on PTRS-related transmission configuration information and preset protocol rules, and PTRS is received in accordance with the SFN transmission mode at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, wherein the actual PTRS reception parameters include the actual PTRS port number and the DMRS port corresponding to the actual PTRS reception.
  • the network device and the UE apply the protocol rules described in the present disclosure during uplink transmission. Based on the actual PTRS reception parameters for PUSCH transmission determined by the transmission configuration information and the preset protocol rules, the network device can receive PTRS in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, and the parameters include but are not limited to the actual number of PTRS ports and the DMRS port corresponding to the actual PTRS reception.
  • the network device may configure the maximum number of PTRS ports to the UE through RRC signaling, which is not limited in the embodiment of the present disclosure.
  • the network configures the physical uplink shared channel PUSCH as a single frequency network SFN transmission mode with multiple transmission and reception points TRP, and the network device sends transmission configuration information related to the phase tracking reference signal PTRS to the UE, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the actual PTRS reception parameters for PUSCH transmission determined based on the PTRS-related transmission configuration information and preset protocol rules are used to perform PTRS reception at the transmission timing TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets in accordance with the SFN transmission mode, wherein the actual PTRS reception parameters include the actual number of PTRS ports, and the
  • the solution provided in the present disclosure can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration of SFN solution under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • Fig. 5 shows a schematic diagram of a process of uplink transmission control according to an embodiment of the present disclosure. As shown in Fig. 5, the method may be executed by a network device and may include the following steps.
  • the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI sends transmission configuration information related to the phase tracking reference signal PTRS to the UE in the network scheduled as a single frequency network SFN transmission mode with multiple transmission and reception points TRP, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field.
  • whether to transmit PTRS in the uplink can be controlled by a high-level parameter configured by a network device.
  • the uplink UE does not transmit PTRS.
  • the high-level parameter UL-PTRS-present is configured for the UE, and the number of PTRS ports is 1 or 2, then the PTRS-DMRS association indication field in UL DCI0_1/0_2 indicates that a DMRS port is associated with this PTRS port.
  • the maximum number of PTRS ports is obtained by configuring maxNrofPorts in the high-level parameter PTRS-UplinkConfig to 'n2'. If the maximum number of PTRS ports indicated is 2, the network side divides the DMRS ports corresponding to the SRS resources into two groups and recommends association relationships respectively.
  • the transmission configuration information includes a DMRS port indication field.
  • the DMRS field of the DCI may indicate the DMRS port information used for the PUSCH transmission in each beam direction. For example, when the indicated DMRS port is ⁇ 0,1 ⁇ and the corresponding transmission scheme is FDM or SFN transmission, the DMRS port corresponding to the PUSCH transmission in each beam direction uses port ⁇ 0,1 ⁇ , that is, TRI is 2. For example, when the corresponding indicated DMRS port is ⁇ 0,1 ⁇ and the corresponding transmission scheme is SDM transmission, the DMRS port corresponding to the PUSCH transmission in each TCI beam direction may also be determined according to predefined rules.
  • the possible port allocation is that the PUSCH transmission in the first beam direction uses the DMRS port ⁇ 0 ⁇ , and the corresponding TRI is 1, and the PUSCH transmission in the second beam square uses the DMRS port ⁇ 1 ⁇ , and the corresponding TRI is 1.
  • the DMRS port or port group corresponding to the TO of the corresponding PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • the DMRS port indication fields associated with different SRS resource sets indicate the same DMRS port/port group, and TPMI 1/TPMI 2 are respectively associated with the first/second SRS resource set corresponding to different panels/TRPs/TCIs. That is, the correspondence between TPMI and SRS resource set can be TPMI 1 corresponding to the first SRS resource set, or TPMI 1 corresponding to the second SRS resource set.
  • different SRS resource sets are associated with PUSCH transmissions on a multi-antenna panel, and different The correspondence between the SRS resource set and the SRI/TPMI indicator field is indicated by the SRS resource set indicator field.
  • the SRS resource set indicator field is used to dynamically indicate STRP and MTRP transmission scheduling.
  • the first SRI/TPMI field can be associated with any SRS resource.
  • the SRS resource set indicator field is used to indicate the dynamic switching between STRP and MTRP through different code points. As shown in Table 1 above, it will not be repeated here.
  • different SRS resource sets can be associated with PUSCH transmissions on multiple panel/TRP/beam TCI states, and the correspondence between SRS resource sets and TPMI/SRI domains is defined by the SRS resource set indicator domain.
  • the current protocol definition for R17 is that the first TPMI domain corresponds to the first SRS resource set, and the second TPMI domain corresponds to the second SRS resource set.
  • the specific correspondence for R18 can be that the first TPMI domain corresponds to the first SRS resource set, or the first TPMI domain corresponds to the second SRS resource set.
  • a codebook preconfiguration table may be determined based on the codebook parameter configuration of PUSCH transmission in the corresponding beam direction of multiple panels and the codebook subset restriction of PUSCH transmission in the corresponding beam direction.
  • the number of bits occupied by each TPMI indication field is determined based on the number of available TPMI combinations in the codebook preconfiguration table.
  • the TCI beam indication information carried in a single DCI sent by the network device to the UE indicates two or more beams and the transmission configuration information includes two or more TPMI indication fields
  • the single DCI is used for multi-antenna panel multi-TRP transmission
  • the multi-antenna panel multi-TRP transmission is a codebook-based PUSCH transmission.
  • the codebook-based PUSCH transmission in each beam direction corresponds to a TPMI indication field, that is, a TPMI indication field can indicate the precoding matrix of the codebook-based PUSCH transmission in a beam direction.
  • the network device is able to determine the codebook parameter configuration and codebook subset restriction of the PUSCH transmission in each beam direction, thereby determining the codebook preconfiguration table for the PUSCH transmission in each beam direction, and each TPMI indication field included in the transmission configuration information carried in the DCI sent by the network device to the UE can carry an index, which is used to indicate TPMI and TRI at the same time according to the codebook preconfiguration table.
  • the number of bits occupied by each TPMI indication field is determined according to the number of available TPMI combinations in the corresponding codebook preconfiguration table.
  • the codebook parameter configuration can configure the number of antenna ports, whether to use transform precoding, and maxRank, and the codebook subset restrictions include three types: fully And Partial And Non Coherent; partial And Non Coherent; non Coherent.
  • step S401 in the above embodiment are also applicable to step S501 in this embodiment, and the principles are the same, which will not be elaborated here.
  • actual PTRS reception parameters for PUSCH transmission are determined based on PTRS-related transmission configuration information and preset protocol rules, and PTRS is received in accordance with the SFN transmission mode at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets, wherein the actual PTRS reception parameters include the actual PTRS port number and the DMRS port corresponding to the actual PTRS reception.
  • the correspondence between the PTRS port and the DMRS port corresponding to the TPMI domain that determines the number of PTRS ports can be used and applied to the PTRS transmission of the two panels, that is, the corresponding PTRS is sent on the same DMRS port. Accordingly, the network device receives the corresponding PTRS on the same DMRS port.
  • the PTRS actual receiving parameter includes the actual PTRS port number and the DMRS port corresponding to the actual receiving PTRS, wherein the actual PTRS port number is less than or equal to the maximum PTRS port number.
  • each PTRS port data is the same and is received through the same one or more DMRS ports.
  • the DMRS port indication fields of different sounding reference signal SRS resource sets corresponding to different antenna panels indicate the same DMRS port or port group to achieve multi-TRP SFN transmission and correspondingly achieve PTRS reception of network devices.
  • the PTRS actual reception parameters for PUSCH transmission determined based on the transmission configuration information and the preset protocol rules, and the PTRS reception on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets are respectively performed in accordance with the SFN transmission mode, including: in response to the different numbers of PTRS ports actually corresponding to the precoders indicated by different TPMI indication fields, the PTRS actual reception parameters are determined based on the preset protocol rules, and SFN reception is respectively performed on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the actual number of PTRS ports N corresponding to the PUSCH is determined by the preset protocol rule.
  • the preset protocol rules are described in detail below. In some optional embodiments of the present disclosure, the preset protocol rules include any of the following:
  • the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI
  • the preset TPMI is one of the TPMIs corresponding to the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs
  • the actual number of PTRS ports determined and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • N is determined by the number of PTRS ports corresponding to the fixed TPMI domain, such as the TPMI1 indication domain, N is equal to N1, and the actual number of PTRS ports determined and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to different panels.
  • the preset TPMI is one of the TPMIs associated with different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH TOs, and the specific TPMI that takes effect can be specified by pre-definition or network configuration.
  • the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • N is equal to the smaller value of the number of PTRS ports corresponding to TPMI 1/TPMI 2, i.e., min ⁇ N1,N2 ⁇ , and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to different panels.
  • the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets.
  • N is equal to the larger value of the number of PTRS ports corresponding to TPMI 1/TPMI 2, i.e., max ⁇ N1,N2 ⁇ , and the determined actual number of PTRS ports and the DMRS ports used for actually sending the PTRS ports are simultaneously applied to different panels.
  • the present disclosure is not limited to other optional modes except the above optional modes.
  • the data layer of data transmission corresponds to the DMRS port used for demodulation.
  • the design of DMRS for data channels (PDSCH/PUSCH) in the NR system mainly includes the design of Front-load DMRS and Additional DMRS.
  • front-load DMRS can obtain channel estimation performance that meets demodulation requirements with lower overhead.
  • front-load DMRS can be configured as up to two OFDM symbols.
  • the mobile speed considered by the NR system can reach up to 500km/h.
  • the relevant protocol defines a DMRS port allocation table for different uplink parameter configurations.
  • DMRS port allocation can be performed based on Table 7.3.1.1.2-8 to Table 7.3.1.1.2-23, as shown in Tables 2 to 17 above, which will not be repeated here.
  • the port characteristics of PTRS and DMRS are related. When there are multiple DMRS ports, it is necessary to specify which PTRS port and which DMRS ports have the same port parameters, that is, the association relationship between the PTRS and DMRS ports is specified through the association relationship indication field of PTRS and DMRS.
  • the number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source requires a PTRS port for phase estimation. Therefore, NR15/16 supports 1 PTRS port for downlink and 2 PTRS ports for uplink. Whether to transmit PTRS in the uplink can be controlled by configuring high-level parameters. If the high-level parameter DMRS-UplinkConfig does not configure phaseTrackingRS for the UE, the uplink UE does not transmit PTRS. If the high-level parameter DMRS-UplinkConfig does not configure phaseTrackingRS for the UE, the uplink UE does not transmit PTRS.
  • the uplink UE does not transmit PTRS. If the high-level parameter DMRS-UplinkConfig does not configure phaseTrackingRS for the UE, the uplink UE does not transmit PTRS. If the high-level parameter UL-PTRS-present is configured for the UE, and the number of PTRS ports is 1 or 2, the PTRS-DMRS association indication field in UL DCI0_1/0_2 indicates that a DMRS port is associated with this PTRS port.
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS actually corresponds to a single port reception on different PUSCH TOs and uses the indicated DMRS port to receive the PTRS.
  • the DMRS has more than one layer of data transmission during transmission.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways:
  • Two bits are used to indicate the two associated DMRS ports (this method can be used for the case where TPMI corresponds to a fully coherent codeword);
  • One bit is used to indicate one of the first two DMRS ports or one of the DMRS ports that share the same PTRS port (this method can be used for the case where the TPMI corresponds to a partially coherent codeword);
  • the network device may determine the DMRS port used by the actual receiving PTRS port based on the PTRS-DMRS association relationship indication field, and use the DMRS port to receive PTRS on different TOs of PUSCH respectively.
  • 2 bits can be used to indicate a specific DMRS port based on Table 2 (Table 7.3.1.1.2-25) above; 1 bit can also be used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways:
  • Two bits are used to indicate the two associated DMRS ports (this method can be used for the case where TPMI corresponds to a fully coherent codeword);
  • Only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port is indicated with 1 bit (this method may be applicable to the case where the TPMI corresponds to a partially coherent codeword).
  • the UE can determine the DMRS port corresponding to the first actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, and determine the DMRS port corresponding to the second actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the default rules, and receive PTRS respectively.
  • PTRS port 0 means the actual sending PTRS port 0, the first PTRS port
  • PTRS port 1 means the actual sending PTRS port 1, the second actual sending PTRS port.
  • the DMRS port determined based on the default rule is any of the following:
  • 2 bits can be used to indicate a specific DMRS port based on Table 4 (Table 7.3.1.1.2-26) above; or 1 bit can be used to indicate only one of the first two DMRS ports, or only one of the first two DMRS ports that share the same PTRS port; the other PTRS port is sent according to the default rule, for example, the other of the first two DMRS ports, or the first of the other DMRS ports when RANK>2, or the first of the two DMRS ports that fixedly share the same PTRS port, which is not limited by the present disclosure.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is received on the same DMRS port on different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH TOs at the same time.
  • the maximum number of PT-RS ports is obtained by configuring maxNrofPorts in the high-level parameter PTRS-UplinkConfig to 'n2'. If the indicated maximum number of PTRS ports is 2, the network side divides the DMRS ports corresponding to the SRS resources into two groups, and based on the above rules, recommends association relationships respectively.
  • the PDSCH transmission is enhanced. Since data transmission includes scheduling feedback of uplink and downlink channels, in the URLLC research, only enhancing the downlink data channel cannot guarantee the overall service performance. In the R17 research, the downlink control channel PDCCH and the uplink control channel PUCCH and data channel PUSCH continue to be enhanced.
  • Phase noise is caused by the execution of the local oscillator, which destroys the orthogonality of each subcarrier in the OFDM system.
  • CPE common phase error
  • ICI inter-carrier interference
  • the PTRS signal is designed for CPE estimation.
  • PTRS is configured by the network to the terminal as a UE-specific reference signal.
  • PTRS is used to track the phase noise introduced by the local oscillator in the gNB and UE.
  • PTRS can be regarded as an extension of DMRS. They have a close relationship, such as using the same precoding, port association, orthogonal sequence generation, QCL relationship, etc.
  • the number of PTRS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source requires a PTRS port for phase estimation.
  • the network device can indicate to the UE which DMRS corresponds to different layers through TPMI, and the DMRS port indication field of the SRS resource set is used to indicate a group of DMRS ports for demodulation used for PUSCH transmission, and the UE sends according to the instructions of the base station.
  • the TPMIs corresponding to different panels are different, the port groupings of the codewords actually corresponding to TPMI are also different. For example, one of the codewords corresponds to a fully coherent codeword, and the corresponding PTRS port is 1, and the other corresponding codeword is 2.
  • the PTRS when the PTRS is sent, it is sent according to 1 on one panel, and the other is sent according to 2; and if the network configuration uses SFN transmission mode for uplink transmission, the DMRS ports sent on the two panels are the same group, that is, the PUSCH sent by panel 0 and the PUSCH sent by panel 1 use the same group of DMRS ports, which is obviously contradictory. Therefore, in the uplink simultaneous transmission under SFN, all reference signals and data remain consistent. Then, when the TPMI indication corresponds to a PTRS port that is inconsistent under the existing protocol, the solution disclosed in the present invention can effectively resolve the conflict.
  • the enhanced indication of PTRS under SFN transmission can be realized, thereby supporting the CPE estimation of the terminal multi-antenna panel under the codebook-based configuration of the SFN scheme under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • the application of multiple TRP/PANELs in base stations is mainly to improve the coverage at the edge of the cell, provide a more balanced service quality within the service area, and use different methods to collaborate to transmit data between multiple TRP/PANELs.
  • network deployment with a large number of distributed access points plus centralized baseband processing will be more conducive to providing a balanced user experience rate and significantly reduce the latency and signaling overhead caused by handover.
  • various occlusion/blocking effects can be better overcome, ensuring the robustness of link connections, which is suitable for URLLC services to improve transmission quality and meet reliability requirements.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of UE and network devices respectively.
  • the network device may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure also provides an uplink transmission control device. Since the uplink transmission control device provided in the embodiment of the present disclosure corresponds to the uplink transmission control provided in the above-mentioned embodiments, the implementation method of the uplink transmission control is also applicable to the uplink transmission control device provided in this embodiment and will not be described in detail in this embodiment.
  • FIG6 is a schematic structural diagram of an uplink transmission control device 600 provided in an embodiment of the present disclosure.
  • the uplink transmission control device 600 may be configured in a network device.
  • the device 600 may include a transceiver module 610 .
  • the transceiver module 610 is used for receiving the transmission configuration information related to the phase tracking reference signal PTRS sent by the network device in the scenario of simultaneous transmission of the physical uplink shared channel PUSCH based on a single downlink control information DCI scheduling in the uplink multi-antenna panel STxMP scenario, when the network scheduling is a multi-transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; and for PUSCH transmission based on the codebook, in different antenna panels/T PTRS is sent according to the SFN transmission mode on the TO of PUSCH corresponding to RP/beam TCI state/SRS resource set.
  • the actual PTRS sending parameters for PUSCH transmission are determined based on the PTRS-related transmission configuration information and the preset protocol rules.
  • PTRS is sent according to the SFN transmission mode on the transmission timing TO of PUSCH corresponding to different antenna panels/TRP/beam TCI state/sounding reference signal SRS resource set, where the actual PTRS sending parameters include the actual number of PTRS ports and the DMRS port used by the actual sending PTRS port.
  • the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI receives the transmission configuration information related to the phase tracking reference signal PTRS sent by the network device under the network scheduling as a multiple transmission and reception point TRP single frequency network SFN transmission mode, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for the codebook-based PUSCH transmission, the actual PTRS transmission parameters for PUSCH transmission are determined based on the transmission configuration information and the preset protocol rules, and the PTRS is respectively transmitted in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets, wherein the actual PTRS transmission parameters include the actual number of PTRS ports
  • the solution provided in the present disclosure can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration of SFN solution under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • the DMRS port or port group corresponding to the TO of the corresponding PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • the transceiver module 610 is specifically used to: in the PUSCH multi-TRP SFN transmission mode, send the same number of PTRS port data on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets, wherein each PTRS port data is the same and is sent through the same one or more DMRS ports.
  • the transceiver module 610 is specifically used to: in response to the different PTRS port numbers actually corresponding to the precoders indicated by different TPMI indication fields, determine the actual PTRS transmission parameters according to preset protocol rules based on the maximum PTRS port number and the association relationship between the PTRS-DMRS ports indicated by the PTRS-DMRS association relationship indication field; based on the actual PTRS transmission parameters, transmit PTRS on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets according to the SFN transmission mode.
  • the preset protocol rules include any of the following: the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI, and the preset TPMI is the number of PTRS ports corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH TOs respectively associated with each other.
  • the actual number of PTRS ports is the minimum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the actual number of PTRS ports determined and the DMRS port used for actually sending the PTRS port are simultaneously applied to the TO of the PUSCH corresponding to different antenna panels/TRPs/beam TCI states/SRS resource sets;
  • the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the actual number of PTRS ports determined and the DMRS port used for actually sending the PTRS port used for
  • the transceiver module 610 is further used to: receive RRC signaling sent by a network device, wherein the RRC signaling includes a maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS is actually sent on a single port on different PUSCH TOs and uses the indicated DMRS port to send the PTRS.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual sending of the PTRS in one of the following ways: 2 bits are used to indicate the two associated DMRS ports; 1 bit is used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port; wherein, sending the PTRS on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets according to the SFN transmission mode includes: determining the DMRS port corresponding to the actual sending of the PTRS based on the PTRS-DMRS association relationship indication field, and using the DMRS port to send the PTRS on the TO of different PUSCHs.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual transmission of the PTRS in one of the following ways: using 2 bits to indicate the two associated DMRS ports; using 1 bit to indicate only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port; wherein, sending PTRS on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets according to the SFN transmission mode includes: determining the DMRS port corresponding to the first actual transmission PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, determining the DMRS port corresponding to the second actual transmission PTRS port on the TO of the PUSCH corresponding to different antenna
  • the DMRS port determined based on the default rule is any one of the following: the other of the first two DMRS ports; any one of the other DMRS ports when RANK>2; any one of the two DMRS ports sharing the same PTRS port.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is sent on the same DMRS port on different TOs of antenna panels/TRP/beam TCI state/SRS resource set/PUSCH at the same time.
  • different SRS resource sets are associated with PUSCH transmission on a multi-antenna panel, and the correspondence between different SRS resource sets and SRI/TPMI indication fields is indicated by an SRS resource set indication field.
  • the uplink transmission control device disclosed in the present invention it is possible to solve the problem that the actual number of PTRS ports corresponding to different TPMIs indicated by the network device is inconsistent, and to realize the enhanced indication of PTRS under SFN transmission, thereby supporting the CPE estimation of the terminal multi-antenna panel under the configuration based on the codebook under the SFN scheme under STxMP transmission, making multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.
  • the application of multiple TRP/PANELs in the base station is mainly to improve the coverage of the cell edge, provide a more balanced service quality in the service area, and use different methods to cooperate in transmitting data between multiple TRP/PANELs.
  • FIG7 is a schematic diagram of the structure of an uplink transmission control device 700 provided in an embodiment of the present disclosure.
  • the uplink transmission control device 700 may be configured in a network device.
  • the device 700 may include a transceiver module 710 .
  • the transceiver module 701 is used for the physical uplink shared channel PUSCH scheduled based on a single downlink control information DCI in the uplink multi-antenna panel simultaneous transmission STxMP scenario, and in the network scheduling is a multi-transmission and reception point TRP single frequency network SFN transmission mode, to send the phase tracking reference signal PTRS related transmission configuration information to the UE, wherein the transmission configuration information includes at least one of the PTRS maximum port number, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the PTRS for PUSCH transmission determined based on the PTRS-related transmission configuration information and the preset protocol rules
  • the actual receiving parameters are used to receive PTRS according to the SFN transmission mode at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets.
  • the actual receiving parameters of PTRS include the actual number of
  • the network configures the physical uplink shared channel PUSCH as a single frequency network SFN transmission mode with multiple transmission and reception points TRP, and the network device sends transmission configuration information related to the phase tracking reference signal PTRS to the UE, wherein the transmission configuration information includes at least one of the maximum number of PTRS ports, the transmission precoding matrix indication TPMI indication field, the DMRS port indication field, and the PTRS-DMRS association relationship indication field; for codebook-based PUSCH transmission, the actual PTRS reception parameters for PUSCH transmission determined based on the PTRS-related transmission configuration information and preset protocol rules are used to perform PTRS reception at the PUSCH transmission timing TO corresponding to different antenna panels/TRP/beam TCI states/sounding reference signal SRS resource sets in accordance with the SFN transmission mode, wherein the actual PTRS reception parameters include the actual number of PTRS ports, and the DMRS
  • the solution provided in the present disclosure can realize enhanced indication under SFN transmission of PTRS, thereby supporting CPE estimation of terminal multi-antenna panels under codebook-based configuration of SFN solution under STxMP transmission, making multi-point collaborative transmission more efficient and effectively improving the reliability and throughput of data transmission.
  • the DMRS port or port group corresponding to the TO of the corresponding PUSCH associated with different antenna panels/TRP/beam TCI states/SRS resource sets is the same.
  • the transceiver module 701 is used to: receive the same number of PTRS port data on the TO of the PUSCH corresponding to different antenna panels/TRPs/beam TCI states/SRS resource sets under the PUSCH multi-TRP SFN transmission mode, wherein each PTRS port data is the same and is received through the same one or more DMRS ports.
  • the transceiver module 701 is specifically used to: in response to the different numbers of PTRS ports actually corresponding to the precoders indicated by different TPMI indication fields, perform SFN reception on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the actual PTRS reception parameters determined based on preset protocol rules.
  • the preset protocol rules include any of the following: the actual number of PTRS ports is the number of PTRS ports corresponding to the preset TPMI, the preset TPMI is one of the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs, and the determined actual number of PTRS ports and the DMRS port used for actually sending the PTRS port are simultaneously applied to the TOs of the PUSCHs corresponding to the different antenna panels/TRPs/beam TCI states/SRS resource sets; the actual number of PTRS ports is the P corresponding to the TPMIs associated with the TOs of different antenna panels/TRPs/beam TCI states/SRS resource sets/PUSCHs.
  • the minimum value of the number of TRS ports, and the actual number of PTRS ports determined and the DMRS port used to actually send the PTRS port are simultaneously applied to the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets;
  • the actual number of PTRS ports is the maximum value of the number of PTRS ports corresponding to the TPMI associated with each TO of different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH, and the actual number of PTRS ports determined and the DMRS port used to actually send the PTRS port are simultaneously applied to the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets.
  • the transceiver module 701 is further used to: send RRC signaling to the UE, wherein the RRC signaling includes the maximum number of PTRS ports, and the actual number of PTRS ports is less than or equal to the maximum number of PTRS ports.
  • the PTRS-DMRS association relationship indication field is empty, and the PTRS actually corresponds to a single port reception on different PUSCH TOs and uses the indicated DMRS port for PTRS reception.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways: 2 bits are used to indicate the two associated DMRS ports; 1 bit is used to indicate one of the first two DMRS ports or one of the DMRS ports sharing the same PTRS port; wherein, receiving PTRS in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets includes: determining the DMRS port used by the actual receiving PTRS port based on the PTRS-DMRS association relationship indication field, and using the DMRS port to receive PTRS on different TOs of the PUSCH.
  • the PTRS-DMRS association relationship indication field determines the DMRS port corresponding to the actual receiving PTRS in one of the following ways: using 2 bits to indicate the two associated DMRS ports; using 1 bit to indicate only one of the first two DMRS ports or only one of the first two DMRS ports that share the same PTRS port; wherein, receiving PTRS in accordance with the SFN transmission mode on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets includes: determining the DMRS port corresponding to the first actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/beam TCI states/SRS resource sets based on the PTRS-DMRS association relationship indication field, determining the DMRS port corresponding to the second actual receiving PTRS port on the TO of the PUSCH corresponding to different antenna panels/TRP/be
  • the DMRS port determined based on the default rule is any one of the following: the other of the first two DMRS ports; any one of the other DMRS ports when RANK>2; any one of the two DMRS ports sharing the same PTRS port.
  • the DMRS port associated with the PTRS when determining the DMRS port associated with the PTRS, is determined by the TPMI corresponding to the TO of the corresponding antenna panel/TRP/beam TCI state/SRS resource set/PUSCH determined by the preset protocol rule, and the same PTRS port is received on the same DMRS port on different antenna panels/TRP/beam TCI states/SRS resource sets/PUSCH TOs at the same time.
  • different SRS resource sets are associated with PUSCH transmission on a multi-antenna panel, and the correspondence between different SRS resource sets and SRI/TPMI fields is indicated by an SRS resource set indication field.
  • the uplink transmission control device disclosed in the present invention it is possible to solve the problem that the actual number of PTRS ports corresponding to different TPMIs indicated by the network device is inconsistent, and to realize the enhanced indication of PTRS under SFN transmission, thereby supporting the CPE estimation of the terminal multi-antenna panel under the configuration based on the codebook under the SFN scheme under STxMP transmission, making multi-point cooperative transmission more effective, and effectively improving the reliability and throughput of data transmission.
  • the application of multiple TRP/PANELs in the base station is mainly to improve the coverage of the cell edge, provide a more balanced service quality in the service area, and use different methods to cooperate in transmitting data between multiple TRP/PANELs.
  • FIG 8 is a schematic diagram of the structure of a communication device 800 provided in an embodiment of the present disclosure.
  • the communication device 800 can be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 800 may include one or more processors 801.
  • the processor 801 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 800 may further include one or more memories 802, on which a computer program 804 may be stored, and the processor 801 executes the computer program 804 so that the communication device 800 performs the method described in the above method embodiment.
  • data may also be stored in the memory 802.
  • the communication device 800 and the memory 802 may be provided separately or integrated together.
  • the communication device 800 may further include a transceiver 805 and an antenna 806.
  • the transceiver 805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 805 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 800 may further include one or more interface circuits 807.
  • the interface circuit 807 is used to receive code instructions and transmit them to the processor 801.
  • the processor 801 runs the code instructions to enable the communication device 800 to perform the method described in the above method embodiment.
  • the processor 801 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 801 may store a computer program 803, which runs on the processor 801 and enables the communication device 800 to perform the method described in the above method embodiment.
  • the computer program 803 may be fixed in the processor 801, in which case the processor 801 may be implemented by hardware.
  • the communication device 800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 8.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 9 includes a processor 901 and an interface 902.
  • the number of processors 901 can be one or more, and the number of interfaces 902 can be multiple.
  • the chip further includes a memory 903, and the memory 903 is used to store necessary computer programs and data.
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal.
  • machine-readable signal refers to any signal for providing machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components.
  • the components of the system may be interconnected by any form or medium of digital data communication (e.g., a communications network). Examples of communications networks include: a local area network (LAN), a wide area network (WAN), and the Internet.
  • a computer system may include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

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Abstract

本公开提供了一种上行传输控制方法及装置，该方法包括：上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，有效提高数据传输的可靠性和吞吐率。

Description

上行传输控制方法及装置 技术领域
本公开涉及移动通信技术领域，特别涉及一种上行传输控制方法及装置。
背景技术
在新无线(newradio，NR)系统中，为了改善小区边缘的覆盖，在服务区内提供更好的服务质量，多点协作传输成为一种重要的技术手段。在Rel-18中，期望通过多个天线面板向多个传输和接收点(transmissionandreceptionpoint，TRP)实现同时协作传输以增强传输的可靠性和吞吐率，因此要求用户设备(Userequipment，UE)具备同时发送多个波束的能力。可以基于单个物理下行控制信道(PhysicalDownlinkControlChannel，PDCCH)调度多天线面板/多TRP传输。
为了支持基于单个DCI的多天线面板/多TRP上行同时传输的单频网(Single Frequency Network，SFN)方案，需要解决用于支持物理上行共享信道(Physical Downlink Shared Channel，PUSCH)的相位跟踪参考信号(Phase-tracking reference signals，PTRS)的SFN发送和接收。
发明内容
本公开提出了一种上行传输控制方法及装置，根据所提出的技术方案、机制、方法以及装置，能够实现PTRS的SFN传输下的增强指示，从而支持多天线面板同时传输(Simultaneous Transmission from Multiple Panels，STxMP)下SFN方案在基于码本(Codebook，CB)的配置下的终端多天线面板的共相位误差(Common Phase Error，CPE)估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
本公开的第一方面实施例提供了一种上行传输控制方法，该方法由用户设备UE执行，该方法包括：上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、解调参考信号DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；以及
对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
在本公开的一些实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
在本公开的一些实施例中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上发送相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行发送。
在本公开的一些实施例中，基于传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于PTRS最大端口数以及PTRS-DMRS关联关系指示域所指示的PTRS-DMRS端口之间的关联关系，根据预设协议规则，确定PTRS实际发送参数；基于PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送。
在本公开的一些实施例中，预设协议规则包括以下任一项：实际PTRS端口数为预设TPMI对应的PTRS端口数，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应 的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
在本公开的一些实施例中，该方法还包括：接收网络设备发送的RRC信令，其中RRC信令中包括PTRS最大端口数，实际PTRS端口数小于或等于PTRS最大端口数。
在本公开的一些实施例中，响应于数据传输层数RANK等于1，PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口发送并使用指示的DMRS端口进行PTRS的发送。
在本公开的一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为1，PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：基于PTRS-DMRS关联关系指示域确定实际发送PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口发送PTRS。
在本公开的一些实施例中，响应于RANK大于或等于2且用于进行PUSCH传输的实际PTRS端口数为2，PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际发送PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际发送PTRS端口对应的DMRS端口，并分别发送PTRS。
在本公开的一些实施例中，基于默认规则确定的DMRS端口为以下任一项：前两个DMRS端口中的另一个；RANK>2时其他DMRS端口中的任一个；共享同一个PTRS端口的两个DMRS端口中的任一个。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自发送相同的PTRS端口。
在本公开的一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合指示指示域指示。
本公开的第二方面实施例提供了一种上行传输控制方法，该方法由网络设备执行，该方法包括：
上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
在本公开的一些实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
在本公开的一些实施例中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上接收相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行接收。
在本公开的一些实施例中，基于传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于预设协议规则确定的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别进行SFN接收。
在本公开的一些实施例中，预设协议规则包括以下任一项：实际PTRS端口数为预设TPMI对应的PTRS端口数，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
在本公开的一些实施例中，该方法还包括：向UE发送RRC信令，其中RRC信令中包括PTRS最大端口数，实际PTRS端口数小于或等于PTRS最大端口数。
在本公开的一些实施例中，响应于数据传输层数RANK等于1，PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口接收并使用指示的DMRS端口进行PTRS的接收。
在本公开的一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为1，PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：基于PTRS-DMRS关联关系指示域确定实际接收PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口接收PTRS。
在本公开的一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为2，PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际接收PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际接收PTRS端口对应的DMRS端口，并分别接收PTRS。
在本公开的一些实施例中，基于默认规则确定的DMRS端口为以下任一项：前两个DMRS端口中的另一个；RANK>2时其他DMRS端口中的任一个；共享同一个PTRS端口的两个DMRS端口中的任一个。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自接收相同的PTRS端口。
在本公开的一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI域的对应关系通过SRS资源集合指示指示域指示。
本公开的第三方面实施例提供了一种上行传输控制装置，该装置配置于UE，该装置包括收发模块，收发模块用于：上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；以及对于基于码本的PUSCH传输，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
本公开的第四方面实施例提供了一种上行传输控制装置，该装置配置于网络设备，该装置包括收发模块，收发模块用于：上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本 的PUSCH传输，基于传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板对应的PUSCH的TO上分别进行SFN接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
本公开的第五方面实施例提供了一种通信设备，包括：收发器；存储器；处理器，分别与收发器及存储器连接，配置为通过执行存储器上的计算机可执行指令，控制收发器的无线信号收发，并能够实现上述第一方面实施例或第二方面实施例的上行传输控制。
本公开第六面实施例提出了一种计算机存储介质，其中，计算机存储介质存储有计算机可执行指令；计算机可执行指令被处理器执行后，能够实现上述第一方面实施例或第二方面实施例的上行传输控制。
本公开实施例提供了一种上行传输控制方法及装置，在上行多天线面板同时传输STxMP场景下，当网络配置PUSCH为多TRP SFN传输方式时，UE接收网络设备发送的PTRS相关的传输配置信息，其中传输配置信息包括用于多TRP SFN传输的两组或更多组DCI信息指示域，其中每组DCI信息指示域至少包括PTRS最大端口数、TPMI指示域、以及PTRS-DMRS关联关系指示域；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本公开实施例的基于单DCI的多TRP发送实现示意图；
图2为根据本公开实施例的一种上行传输控制的流程示意图；
图3为根据本公开实施例的一种上行传输控制的流程示意图；
图4为根据本公开实施例的一种上行传输控制的流程示意图；
图5为根据本公开实施例的一种上行传输控制的流程示意图；
图6为根据本公开实施例的一种上行传输控制装置的框图；
图7为根据本公开实施例的一种上行传输控制装置的框图；
图8为本公开实施例提供的一种通信装置的结构示意图；
图9为本公开实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
在5G/NR Rel-16中，主要针对PDSCH传输引入了与多TRP相关的操作，与多TRP相关的操作可以包括单DCI操作和多DCI操作。利用单个DCI(Single DCI，S-DCI)，单个PDCCH可用于调度来自多个TRP的多个PDSCH传输。
图1为根据本公开实施例的基于单DCI的多TRP发送实现示意图。作为示例，提供两个TRP(TRP 1和TRP 2)以与具有多个天线面板(Panel 1和Panel 2)的UE进行通信。如图1所示，对于单DCI操作，传输可以基于一个PDCCH信道承载的一个DCI进行调度，也可以考虑基于不同PDCCH承载的不同DCI分别调度。
如上所述，与多TRP相关的操作可以包括单DCI操作和多DCI操作。另一方面，与多TRP相关的操作可以包括用于下行链路(例如PDSCH)的与多TRP相关的操作和用于上行链路(例如PUSCH)的与多TRP相关的操作。在5G/NR Rel-16中，主要针对PDSCH传输引入了与多TRP相关的操作，但是未定义用于PUSCH传输的与多TRP相关的操作。R17标准在多TRP(Multi-TRP，M-TRP)场景下，上行增强支持了对于PUSCH/PUCCH信道的重复发送方式可以通过采用时分复用(time-division multiplexing，TDM)方式在不同的上行波束方向上向给不同的基站端TRP进行上行信道的发送。
例如，终端多panel实现一般会配置多个物理panel，不同的panel的能力可能也不相同，比如具备不同的SRS端口数，每个panel支持的最大数据传输层数也不一定相同，比如一个panel支持最大2层的传输，另一个panel支持最大4层的传输。网络调度器会判断终端当前是否适合多Panel的上行同时传输，如果终端当前适合多panel的上行同时传输同时被调度，则网络会直接或间接指示相关的传输参数，包括终端具体波束指示信息、传输使用的数据层数、使用的DMRS端口分配情况、以及预编码的指示信息等，因此需要确定在S-DCI调度下的PTRS端口的配置和具体指示问题。
在R18中，上行同时传输可能支持的传输方案为对于多天线面板Panel/接收和发送点TRP/传输配置指示TCI的上行同步传输。目前，通信系统的瓶颈仍然在上行传输的速率及覆盖等，因此对于R18标准的系统增强方向，主要是考虑在Multi-TRP场景下，利用多panel终端进行上行同时传输来提高上行速率，并进一步提高传输的可靠性。传输可以基于一个PDCCH信道承载的一个DCI进行调度，也可以考虑基于不同PDCCH承载的不同DCI分别调度。基于单个DCI(S-DCI)的PUSCH传输的一个传输块(Transport Block，TB)的协作传输，包括多种不同的传输方案，目前考虑的同步传输方案主要是不用Panel的信道发送基于SDM或者FDM复用来实现的。下面对每种传输方案进行简单说明：
一种方案是空分复用(Space Division Multiplexing，SDM)方案：PUSCH的一个TB通过不同panel上分配的各自对应的解调参考信号(Demodulation Reference Signal，DMRS)端口或端口组合分别面向两个不同的TRP在相同的时频资源上进行发送，不同的Panel/TRP/传输时机(Transmission Occasion，TO)分别和不同的TCI state相关联，即与不同的波束相关联。在此基础上，SDM方案又具体分为SDM-A和SDM-B两种方案，其中，在SDM-A方案中，PUSCH的一个TB的不同部分分别通过不同Panel上分配的各自对应的DMRS端口或端口组合分别面向两个不同的TRP在相同的时频资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联；在SDM-B方案中，PUSCH的对应不同RV版本的同一个TB的重复通过不同Panel上分配的各自对应的DMRS端口或端口组合分别面向两个不同的TRP在相同的时频资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联。
另一种方案是频分复用(Frequency Division Multiplexing，FDM)方案：PUSCH的一个TB通过不同Panel上分配的相同DMRS端口或端口组合分别面向两个不同的TRP在相同时域资源上的不重叠频域资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联。在此基础上，FDM方案又具体分为FDM-A和FDM-B两种方案，其中，在FDM-A方案中，PUSCH的一个TB的不同部分分别通过不同Panel上分配的相同DMRS端口或端口组合分别面向两个不同的TRP在相同时域资源上的不重叠频域资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联；在FDM-B方案中，PUSCH的对应不同RV版本的同一个TB的重复通过不同Panel上分配的相同DMRS端口或端口组合分别面向两个不同的TRP在相同时域资源上的不重叠频域资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联。
又一种方案是空间复用SFN方案：PUSCH的一个TB通过不同Panel上分配的相同DMRS端口或端口组合分别面向两个不同的TRP在相同的时频资源上进行发送，不同的Panel/TRP/TO分别和不同的TCI状态相关联。应当理解的是，图1示例性地示出的方案为采用SDM传输方式的多TRP传输，其采用不同的天线端口传输不同的数据层。类似地，对于SFN传输方案，可采用相同的天线端口传输相同的数据层，在此不再赘述。
基于多panel的上行PUSCH同时传输通常会支持上述方案中的一种或多种。
在R18的上行增强中，考虑如何通过multi-panel/multi-TRP的上行同时传输用于支持更高的吞吐率和更可靠的传输性能。
为了支持基于S-DCI的多panel上行同时传输的SFN方案，DMRS和PTRS的传输方案也需要确定。对于DMRS，目前主要考虑SFN的传输方案，即在不同Panel使用相同的DMRS端口进行发送。对于PTRS，同样需要考虑SFN传输和非SFN传输的不同方案影响。
当前协议在支持基于码本的PUSCH传输的PTRS发送时，同一个PTRS端口会关联到不同的SRS资源集合对应的同一组DMRS端口，但是关联不同SRS资源集合的TPMI指示域对应的实际PTRS端口数目可能并不一致，这样就会在造成实际发送的PTRS并不是SFN传输。因此需要对这个问题考虑如何解决用于支持CBPUSCH的PTRS的SFN发送。
在本公开中，提供了一种技术方案，能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
下面结合附图对本公开所提供的上行传输控制方法及装置进行详细地介绍。
图2示出了根据本公开实施例的一种上行传输控制的流程示意图。如图2所示，该方法可由UE执行，且可以包括以下步骤。
S201，上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项。
在本实施例中，传输配置信息可以动态地包括用于多TRP SFN传输的两组或更多组DCI信息指示域。其中，每组信息指示域至少包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、以及PTRS与解调参考信号DMRS的关联关系指示域，但本公开并不限于此，每组信息指示于还可以包括其他信息指示域。
在一些实施例中，单个DCI中的TCI波束指示信息指示两个或更多个波束且传输配置信息可以包括两个或更多个TPMI指示域，其中每个TPMI指示域用于指示相应的波束方向上的PUSCH传输的预编码矩阵，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于码本的PUSCH传输。针对每个波束方向上的PUSCH传输，由一个TPMI指示域指示在该PUSCH传输所使用的预编码矩阵。
在一些实施例中，单个DCI中的TCI波束指示信息指示两个或更多个波束且传输配置信息可以包括两个或更多个SRI指示域，其中每个SRI指示域用于相应的波束方向上的PUSCH传输所被分配的SRS资源集合中的一个或多个携带预编码信息的SRS资源，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于非码本的PUSCH传输。针对每个波束方向上的PUSCH传输，由一个SRI指示域指示从该PUSCH传输所被分配的SRS资源集合中选择的一个或多个SRS资源。对于基于码本的PUSCH传输中，通过SRI指示为PUSCH传输选择相应的空间滤波器(SpatialFilter)，即PUSCH使用SRI选择的SRS资源对应的空间关系信息(TCI或Spatial Relation Info)作为发送使用的空间滤波。对于基于非码本的PUSCH传输中，通过一个SRS资源集合中的多个单端口SRS资源携带了终端计算并建议使用的PUSCH预编码信息，每个SRS资源携带对应一层数据使用的预编码信息，基站通过测量对于终端上报的预编码信息进行调度选择并通过SRI指示对预编码信息进行选择，即在对应的SRS资源集合中选择一个或多个SRS资源，终端在接收到基站的SRI指示后，就使用一个或多个对应的SRS资源对应的预编码作为PUSCH发送使用的预编码。
S202，对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
在本公开的实施例中，UE可以基于PTRS最大端口数目以及PTRS与DMRS端口之间的关联关系指示，根据预设协议规则，确定的PTRS的实际发送参数，包括但不限于实际PTRS端口数、以及实际发送PTRS对应的DMRS端口。
在本公开的实施例中，PTRS最大端口数可以是高层配置的，例如通过RRC信令配置，对此本公开实施例不予限制。
根据本公开实施例的上行传输控制方法，在上行多天线面板同时传输STxMP场景下，当网络配置PUSCH为多TRP SFN传输方式时，UE接收网络设备发送的PTRS相关的传输配置信息，其中传输配置信息包括用于多TRP SFN传输的两组或更多组DCI信息指示域，其中每组DCI信息指示域至少包括PTRS最大端口数、TPMI指示域、以及PTRS-DMRS关联关系指示域；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
图3示出了根据本公开实施例的一种上行传输控制的流程示意图。如图3所示，该方法可由UE执行，且可以包括以下步骤。
S301，上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪 参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项。
在本公开的一些实施例中，在上行是否传输PTRS，也是通过高层参数的配置来控制。UE可以通过接收网络设备发送的RRC信令，来获取PTRS最大端口数。例如，RRC配置PTRS对应的最大端口数maxNrofPorts＝1或2。
如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层给UE配置了参数UL-PTRS-present，并且PTRS端口数是1或者2，那么通过UL DCI0_1/0_2中的PTRS-DMRS关联关系(PTRS-DMRS association)指示域指示一个DMRS端口关联这个PTRS端口。其中，PTRS的最大端口数是由高层参数PTRS-UplinkConfig中的maxNrofPorts配置为'n2'得到。如果指示的最大PTRS端口数是2，那么网络侧通过SRS资源对应的DMRS端口分成两个组，分别建议关联关系。
在本公开的一些实施例中，所述传输配置信息包括DMRS端口指示域。DCI的DMRS域中可以指示对应每个波束方向上的PUSCH传输使用的DMRS端口信息，例如，对于指示的DMRS端口为{0,1}且对应的传输方案为FDM或SFN传输，则对应每个波束方向的PUSCH传输的DMRS端口都使用端口{0,1}，即TRI为2。例如，对应指示的DMRS端口为{0，1}且对应的传输方案为SDM传输时，则也可以根据预定义的规则分别确定在每个TCI波束方向上PUSCH传输对应的DMRS端口，可能的端口分配是，第一个波束方向上的PUSCH传输使用DMRS端口为{0}，且对应的TRI为1，第二个波束方形上的PUSCH传输使用DMRS端口{1}，且对应的TRI为1。
在本公开中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
换言之，对于CB PUSCH，关联不同SRS资源集合的DMRS端口指示域指示的DMRS端口/端口组相同，TPMI1/TPMI2分别关联对应不同的panel/TRP/TCI的第一/第二SRS资源集合。即，TPMI与SRS资源集合的对应关系可以是TPMI 1对应于第一SRS资源集合，也可以是TPMI 1对应于第二SRS资源集合。在本公开的一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合(SRS resource set indicator)指示指示域指示。
其中SRS resource set indicator指示域用于动态指示STRP和MTRP传输调度。
在单TRP时，第一个SRI/TPMI域可以和任一SRS资源关联，具体地，SRS resource set indicator指示域通过不同的码点用于STRP和MTRP之间的动态切换指示。如下表1。
表1
换言之，不同的SRS资源集合可以与多panel/TRP/波束TCI state上的PUSCH传输相关联，SRS资源集合与TPMI/SRI域的对应关系通过SRS resource set indicator指示域定义。R17目前协议定义第一个TPMI域对应第一个SRS资源集合，第二个TPMI域对应第二个SRS资源集合。R18具体对应关系可以是第一TPMI域对应第一SRS资源集合，也可以是第一TPMI域对应第二SRS资源集合。
在本公开的实施例中，根据多panel相应的波束方向上的PUSCH传输的码本参数配置以及相应的波束方向上的PUSCH传输的码本子集限制，可以确定码本预配置表。每个TPMI指示域占用的比特数根据码本预配置表中可用TPMI组合数量确定。
在本实施例中，网络设备向UE发送的单个DCI中携带的TCI波束指示信息指示两个或更多个波束以及传输配置信息包括两个或更多个TPMI指示域，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于码本的PUSCH传输。每个波束方向上的基于码本的PUSCH传输对应一个TPMI指示域，即一个TPMI指示域可以指示在一个波束方向上的基于码本的PUSCH传输的预编码矩阵。网络设备能够确定每个波束方向上的PUSCH传输的码本参数配置以及码本子集限制，由此可以确定用于每个波束方向上的PUSCH传输的码本预配置表，网络设备向UE发送的DCI中携带的传输配置信息中包括的每个TPMI指示域可以携带索引，该索引用于根据码本预配置表同时指示TPMI和TRI。每个TPMI指示域占用的比特数根据相应的码本预配置表中可用TPMI组合数量确定。
码本参数配置可以对天线端口数、是否使用变换预编码以及maxRank进行配置，而码本子集限制包括三种，分别为：全部、部分和非相关(fullyAndPartialAndNonCoherent)；部分和非相关(partialAndNonCoherent)；非相关(nonCoherent)。
上述实施例中步骤S201的其他解释同样适用于本实施例中的步骤S301，其原理相同，在此不予赘述。
S302，对于基于码本的PUSCH传输，在PUSCH多TRP SFN传输方式下，基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上发送相同数量的PTRS端口数据。
换言之，在本公开的方案中，可以使用决定PTRS端口数的TPMI域对应的PTRS端口与DMRS端口对应关系，并应用于两个panel的PTRS发送，即在相同的DMRS端口上发送对应的PTRS。
在本公开的一些实施例中，所述PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS对应的DMRS端口。其中，实际PTRS端口数小于或等于PTRS最大端口数。
在本公开的一些实施例中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行发送。换言之，不同天线面板对应的不同探测参考信号SRS资源集合的DMRS端口指示域指示的DMRS端口或端口组相同，以实现多TRP SFN发送。
在一些可选实施例中，所述基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送具体包括：响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于所述PTRS最大端口数以及PTRS-DMRS关联关系指示域所指示的PTRS-DMRS端口之间的关联关系，根据所述预设协议规则，确定所述PTRS实际发送参数；基于所述PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送。
换言之，当TPMI1指示的预编码器实际对应的PTRS端口数为N1，TPMI2指示的预编码器实际对应的PTRS端口数为N2，则PUSCH对应的实际PTRS端口数N由预设协议规则确定。
下面详细介绍预设协议规则。在本公开的一些可选实施例中，预设协议规则包括以下任一项：
在一种可选方式中，所述实际PTRS端口数为预设TPMI对应的PTRS端口数，所述预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。换言之，N由固定的TPMI域对应的PTRS端口数决定，如TPMI1指示域决定，N等于N1，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
换言之，通过上述规则确定的实际PTRS端口数目为N，且每个PTRS端口具体对应的DMRS端口，则对于每个PUSCH的TO上发送实际端口数目均为N，且各个端口对应的DMRS端口均相同，从而实现PTRS的SFN发送。
其中，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，具体哪个TPMI生效可以通过预定义或网络配置指定。应理解的是，在本公开的一些可选实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI不同，对此本公开不予赘述。
在另一种可选方式中，所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS 资源集合各自对应的PUSCH的TO上。换言之，N等于TPMI1/TPMI2对应的PTRS端口数的较小值，即min{N1,N2}，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
在又一种可选方式中，所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。换言之，N等于TPMI1/TPMI2对应的PTRS端口数的较大值，即max{N1,N2}，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
本公开不限制除上述可选方式之外的其他方式。
下面详细介绍PTRS与DMRS关联关系指示。首先，先对相关协议中的内容进行描述，以便于理解本公开所定义的PTRS与DMRS关联关系指示。
对于PDSCH/PUSCH信道，数据传输的数据层与解调使用的DMRS端口相对应。NR系统中数据信道(PDSCH/PUSCH)DMRS设计主要包含对Front-load DMRS以及Additional DMRS的设计，其中，对于低移动性场景，front-load DMRS能以较低的开销获得满足解调需求的信道估计性能，取决于传输所使用的正交端口数，front-load DMRS最多可以配置为两个OFDM符号。但是，NR系统所考虑的移动速度最高可达500km/h，面临动态范围如此之大的移动性，除了front-load DMRS之外，在中/高速场景之中，还需要在调度持续时间内安插更多的DMRS符号，以满足对信道时变性的估计精度。相关协议中定义了上行不同参数配置的DMRS端口分配表格，针对不同DMRS类型(1或2)、符号长度、数据层数、使用或不使用变换预编码(例如，dmrs-Type＝1，maxLength＝1，rank＝1，transform precoder is disabled即代表DMRS类型1，单符号，单流传输，不使用变换预编码)，可基于Table 7.3.1.1.2-8至Table 7.3.1.1.2-23进行DMRS端口分配，如下表2至17所示，在此不再赘述。
表2
(Table 7.3.1.1.2-8:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝1,rank＝1)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 1 0
1 1 1
2 2 0
3 2 1
4 2 2
5 2 3
6-7 Reserved Reserved
表3
(Table 7.3.1.1.2-9:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝1,rank＝2)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 1 0,1
1 2 0,1
2 2 2,3
3 2 0,2
4-7 Reserved Reserved
表4
(Table 7.3.1.1.2-10:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝1,rank＝3)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 2 0-2
2-7 Reserved Reserved
表5
(Table 7.3.1.1.2-11:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝1,rank＝4)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 2 0-3
2-7 Reserved Reserved
表6
(Table 7.3.1.1.2-12:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝2,rank＝1)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 1 0 1
1 1 1 1
2 2 0 1
3 2 1 1
4 2 2 1
5 2 3 1
6 2 0 2
7 2 1 2
8 2 2 2
9 2 3 2
10 2 4 2
11 2 5 2
12 2 6 2
13 2 7 2
14-15 Reserved Reserved Reserved
表7
(Table 7.3.1.1.2-13:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝2,rank＝2)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 1 0,1 1
1 2 0,1 1
2 2 2,3 1
3 2 0,2 1
4 2 0,1 2
5 2 2,3 2
6 2 4,5 2
7 2 6,7 2
8 2 0,4 2
9 2 2,6 2
10-15 Reserved Reserved Reserved
表8
(Table 7.3.1.1.2-14:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝2,rank＝3)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 2 0-2 1
1 2 0,1,4 2
2 2 2,3,6 2
3-15 Reserved Reserved Reserved
表9
(Table 7.3.1.1.2-15:Antenna port(s),transform precoder is disabled,dmrs-Type＝1,maxLength＝2,rank＝4)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 2 0-3 1
1 2 0,1,4,5 2
2 2 2,3,6,7 2
3 2 0,2,4,6 2
4-15 Reserved Reserved Reserved
表10
(Table 7.3.1.1.2-16:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝1,rank＝1)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 1 0
1 1 1
2 2 0
3 2 1
4 2 2
5 2 3
6 3 0
7 3 1
8 3 2
9 3 3
10 3 4
11 3 5
12-15 Reserved Reserved
表11
(Table 7.3.1.1.2-17:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝1,rank＝2)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 1 0,1
1 2 0,1
2 2 2,3
3 3 0,1
4 3 2,3
5 3 4,5
6 2 0,2
7-15 Reserved Reserved
表12
(Table 7.3.1.1.2-18:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝1,rank＝3)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 2 0-2
1 3 0-2
2 3 3-5
3-15 Reserved Reserved
表13
(Table 7.3.1.1.2-19:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝1,rank＝4)
Value Number of DMRS CDM group(s)without data DMRS port(s)
0 2 0-3
1 3 0-3
2-15 Reserved Reserved
表14
(Table 7.3.1.1.2-20:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝2,rank＝1)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 1 0 1
1 1 1 1
2 2 0 1
3 2 1 1
4 2 2 1
5 2 3 1
6 3 0 1
7 3 1 1
8 3 2 1
9 3 3 1
10 3 4 1
11 3 5 1
12 3 0 2
13 3 1 2
14 3 2 2
15 3 3 2
16 3 4 2
17 3 5 2
18 3 6 2
19 3 7 2
20 3 8 2
21 3 9 2
22 3 10 2
23 3 11 2
24 1 0 2
25 1 1 2
26 1 6 2
27 1 7 2
28-31 Reserved Reserved Reserved
表15
(Table 7.3.1.1.2-21:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝2,rank＝2)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 1 0,1 1
1 2 0,1 1
2 2 2,3 1
3 3 0,1 1
4 3 2,3 1
5 3 4,5 1
6 2 0,2 1
7 3 0,1 2
8 3 2,3 2
9 3 4,5 2
10 3 6,7 2
11 3 8,9 2
12 3 10,11 2
13 1 0,1 2
14 1 6,7 2
15 2 0,1 2
16 2 2,3 2
17 2 6,7 2
18 2 8,9 2
19-31 Reserved Reserved Reserved
表16
(Table 7.3.1.1.2-22:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝2,rank＝3)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 2 0-2 1
1 3 0-2 1
2 3 3-5 1
3 3 0,1,6 2
4 3 2,3,8 2
5 3 4,5,10 2
6-31 Reserved Reserved Reserved
表17
(Table 7.3.1.1.2-23:Antenna port(s),transform precoder is disabled,dmrs-Type＝2,maxLength＝2,rank＝4)
Value Number of DMRS CDM group(s)without data DMRS port(s) Number of front-load symbols
0 2 0-3 1
1 3 0-3 1
2 3 0,1,6,7 2
3 3 2,3,8,9 2
4 3 4,5,10,11 2
5-31 Reserved Reserved Reserved
而PTRS和DMRS的端口特性是相关的，当存在多个DMRS端口时则需要指定，某一PTRS端口和哪个或哪几个DMRS端口是相同的端口参数，即，通过PTRS和DMRS的关联关系指示域指定PTRS和DMRS端口之间的关联关系。
PTRS的端口数与相位噪声源的个数相关，当存在多个独立的相位噪声源时，每个相位噪声源都需要一个PTRS端口对其进行相位估计。因此，NR15/16中支持下行1个PTRS端口和上行2个PTRS端 口。在上行是否传输PTRS，可以通过高层参数的配置来控制。如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层给UE配置了参数UL-PTRS-present，并且PTRS端口数是1或者2，那么通过UL DCI0_1/0_2中的PTRS-DMRS关联关系(PTRS-DMRS association)指示域指示一个DMRS端口关联这个PTRS端口。
具体关联关系如下表所示：
下述表18示出了PTRS单端口情况(参见协议中Table 7.3.1.1.2-25:PTRS-DMRS association for UL PTRS port 0)。
表18
R17中引入了对应于指示数据层数RANK＝2时对应的不同TRP方向上的PTRS与DMRS关联关系定义，如下表19所示(参见协议中Table 7.3.1.1.2-25A:PTRS-DMRS association for UL PTRS port 0or for the actual UL PTRS port)。其中，通过最低有效位(Least Significant Bit，LSB)和最高有效位(Most Significant Bit，MSB)指示不同方向上PTRS与DMRS关联关系。
表19
下表20示出了PTRS两端口的情况(参见协议Table 7.3.1.1.2-26:PTRS-DMRS association for UL PTRS ports 0and 1)。
表20
在本公开的一些可选实施例中，响应于数据层数RANK等于1，所述PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口发送并使用指示的DMRS端口进行PTRS的发送。换言之，DMRS在传输中其数据层数不止一层，当RANK＝1时，PTRS与DMRS的关联关系是确定的，PTRS在DRMS上直接传输，此时不需要指示。
在本公开的一些可选实施例中，响应于RANK大于或等于2且所述实际PTRS端口数为1，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：
以2比特指示关联的两个DMRS端口(该方式可以针对TPMI对应全相干码字的情况)；
以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个(该方式可以针对TPMI对应部分相干码字的情况)；
相应地，UE可以基于PTRS-DMRS关联关系指示域确定实际发送PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口发送PTRS。
换言之，当RANK>＝2且当端口数为1时，可以使用2比特基于上表2(Table 7.3.1.1.2-25)指示具体的DMRS端口；也可以使用1比特来指示前2个DMRS端口的一个或共享同一个PTRS端口的DMRS端口中的一个。
在本公开的一些可选实施例中，响应于RANK大于或等于2且用于进行PUSCH传输的实际PTRS端口数为2，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：
以2比特指示关联的两个DMRS端口(该方式可以针对TPMI对应全相干码字的情况)；
以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个(该方式可以针对TPMI对应部分相干码字的情况)。
相应地，UE可以基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际发送PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际发送PTRS端口对应的DMRS端口，并分别发送PTRS。
其中，PTRS port 0，即实际发送PTRS端口0，第一个PTRS端口，PTRS port 1，即实际发送PTRS端口1，第二个实际发送PTRS端口。
其中，基于默认规则确定的DMRS端口为以下任一项：
前两个DMRS端口中的另一个；
RANK>2时其他DMRS端口中的任一个；
共享同一个PTRS端口的两个DMRS端口中的任一个。
换言之，当RANK>＝2且当端口数为2时，可以使用2比特基于上表4(Table 7.3.1.1.2-26)指示具体的DMRS端口；也可以使用1比特仅指示前2个DMRS端口中的一个，或仅指示第一个共享同一个PTRS端口的2个DMRS端口中的一个；另一个PTRS端口按照默认规则发送，比如，前2个DMRS端口中的另一个，或RANK>2时其他DMRS端口中的第一个，或固定共享同一个PTRS端口的两个DMRS端口中的第一个，对此本公开不予限制。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自发送相同的PTRS端口。
在本公开的一些实施例中，PT-RS的最大端口数是由高层参数PTRS-UplinkConfig中的maxNrofPorts配置为'n2'得到。如果指示的PTRS最大端口数是2，那么网络侧通过SRS资源对应的DMRS端口分成两个组，基于上述规则，分别建议关联关系。
在本公开的实施例中，由于在R16研究阶段，基于下行多TRP(发送接收点)/天线面板间的多点协作传输技术的应用，对PDSCH进行了传输增强。由于数据传输包括上下行信道的调度反馈，因此在URLLC的研究中，只对下行数据信道增强并不能保证整体的业务性能。在R17的研究中，继续对下行控制信道PDCCH以及上行的控制信道PUCCH和数据信道PUSCH进行增强。
相位噪声(Phase Noise，PN)是由本振的执行破坏了OFDM系统中各子载波的正交性，而这引起共相位误差(Common Phase Error,CPE)导致调制星座的以固定角度的旋转和引起子载波间干扰(Inter-Carrier Interference,ICI)导致星座点的散射，在高频时这种情况更加明显。由于CPE的影响更大，在NR中主要考虑对CPE进行补偿。在NR中，设计了PTRS信号用于CPE的估计，为了增强信号覆盖，提高信号质量，PTRS作为一种UE专有(UE-specific)的参考信号由网络配置给终端，PTRS用于跟踪gNB和UE中的本振引入的相位噪声。PTRS可以看做DMRS的一种扩展，他们具有紧密的关系，如采用相同的预编码，端口关联性、正交序列的生成、QCL关系等。
PTRS的端口数与相位噪声源的个数相关，当存在多个独立的相位噪声源时，每个相位噪声源都需要一个PTRS端口对其进行相位估计。
换言之，针对基于码本的情况，可以根据上表确定TPMI中指示的码本中不同层对应的是哪个DMRS，SRS资源集的DMRS端口指示域用来指示PUSCH传输使用的用于解调的一组DMRS端口，则UE按照基站的指示进行发送。然而对于多panel场景，由于不同panel对应的TPMI是不同的，TPMI实际对应的码字的端口分组也是不同的，比如其中之一的码字对应的是全相干码字，对应PTRS端口为1，另一对应的码字是2，那么PTRS在发送时在一个panel上按照1发送，则另一个按照2发送；而如果网络配置以SFN的传输方式进行上行传输，DMRS端口在两个panel上发送的DMRS端口为同一组， 也即，panel 0发送的PUSCH和panel 1发送的PUSCH使用的是同一组DMRS端口，显然这是矛盾的。因此，上行同传在SFN下，所有的参考信号和数据都保持一致。那么在现有协议下出现TPMI指示对应到的PTRS端口不一致的情况时，应用本公开的方案可以有效解决该冲突。
综上，基于本公开的方案，能够解决在网络设备指示不同TPMI对应的PTRS实际端口数不一致的情况下，实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
此外，基站多TRP/PANEL的应用主要为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，用不同的方式在多个TRP/PANEL间协作传输数据。从网络形态角度考虑，以大量的分布式接入点加基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率，并且显著的降低越区切换带来的时延和信令开销。利用多个TRP或面板之间的协作，从多个角度的多个波束进行信道的传输/接收，可以更好的克服各种遮挡/阻挡效应，保障链路连接的鲁棒性，适合URLLC业务提升传输质量和满足可靠性要求。
图4示出了根据本公开实施例的一种上行传输控制的流程示意图。如图4所示，该方法可由网络设备执行。
对于网络设备而言，NR中基于码本的PUSCH传输中，针对终端在一个SRS资源集中配置多个SRS资源，网络侧会反馈比特的SRS资源指示(SRI)，通过SRI指示选择SRS资源，网络设备基于上行CSI的测量决定终端实际传输使用的预编码矩阵TPMI和传输层数RI，并通过TPMI指示域配置并通知终端。通常终端在接下来的上行传输中的数据需要使用网络侧指定的TPMI和RI进行预编码，同时对于预编码后的数据按照SRI指示的SRS资源对应的空间方向指示信息(空间滤波器SpatialRelationInfo)映射到相应的天线端口上。不同的SRS会使用不同的空间滤波器传输，因此终端经过预编码的数据需要经过SRI指示的SRS所使用的空间滤波器进行滤波。通过这种方式可以支持上行数据从单层到满秩的传输。
表21示出了基于码本的PUSCH传输的SRI对于多个SRS资源的指示方法的示例，表22示出了以4天线端口为例分别给出了单层传输的TPMI和RI的信令指示方式的示例，分别针对不同的UE能力进行指示(即，对应4天线端口，传输层数为1的配置：预编码信息TPMI和传输层数RI(当使用DFTs-OFDM预编码的情况，以及不使用DFTs-OFDM预编码且传输层数为1层的情况))。这里UE能力分为全相关，部分相关和不相关三种类型，表征了天线端口的相关性的能力。表23示例性地示出了对应4天线端口单层传输的码字(上行DFT-S-OFDM波形下4天线单流码本)。
表21
Bit field mapped to index SRI(s),NSRS＝2
0 0
1 1
表22
表23
对于多panel场景，由于不同panel对应的TPMI是不同的，TPMI实际对应的码字的端口分组也是不同的，比如其中之一的码字对应的是全相干码字，对应PTRS端口为1，另一对应的码字是2，那么PTRS在发送时在一个panel上按照1发送，则另一个按照2发送；而如果网络配置以SFN的传输方式进行上行传输，DMRS端口在两个panel上发送的DMRS端口为同一组，也即，panel 0发送的PUSCH和panel 1发送的PUSCH使用的是同一组DMRS端口，显然，如果UE按照基站的指示进行发送则会产生冲突。因此，上行同传在SFN下，所有的参考信号和数据都保持一致。那么在现有协议下出现TPMI指示对应到的PTRS端口不一致的情况时，应用本公开的方案可以有效解决该冲突。
在本公开提出的方案中，如图4所示，包括以下步骤。
S401，上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项。
在本公开的实施例中，网络设备可以为UE配置传输配置信息。传输配置信息可以动态地包括用于多TRP SFN传输的两组或更多组DCI信息指示域。其中，每组信息指示域至少包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、以及PTRS与解调参考信号DMRS的关联关系指示域，但本公开并不限于此，每组信息指示于还可以包括其他信息指示域。
在一些实施例中，单个DCI中的TCI波束指示信息指示两个或更多个波束且传输配置信息可以包括两个或更多个TPMI指示域，其中每个TPMI指示域用于指示相应的波束方向上的PUSCH传输的预编码矩阵，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于码本的PUSCH传输。针对每个波束方向上的PUSCH传输，由一个TPMI指示域指示在该PUSCH传输所使用的预编码矩阵。
在一些实施例中，单个DCI中的TCI波束指示信息指示两个或更多个波束且传输配置信息可以包括两个或更多个SRI指示域，其中每个SRI指示域用于相应的波束方向上的PUSCH传输所被分配的SRS资源集合中的一个或多个携带预编码信息的SRS资源，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于非码本的PUSCH传输。针对每个波束方向上的PUSCH传输，由一个SRI指示域指示从该PUSCH传输所被分配的SRS资源集合中选择的一个或多个SRS资源。对于基于码本的PUSCH传输中，通过SRI指示为PUSCH传输选择相应的空间滤波器(Spatial Filter)，即PUSCH使用SRI选择的SRS资源对应的空间关系信息(TCI或Spatial Relation Info)作为发送使用的空间滤波。对于基于非码本的PUSCH传输中，通过一个SRS资源集合中的多个单端口SRS资源携带了终端计算并建议使用的PUSCH预编码信息，每个SRS资源携带对应一层数据使用的预编码信息，基站通过测量对于终端上报的预编码信息进行调度选择并通过SRI指示对预编码信息进行选择，即在对应的SRS资 源集合中选择一个或多个SRS资源，终端在接收到基站的SRI指示后，就使用一个或多个对应的SRS资源对应的预编码作为PUSCH发送使用的预编码。
S402，对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
在本公开的实施例中，网络设备与UE在上行传输过程中适用本公开所述的协议规则。基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，网络设备可以在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收，该参数包括但不限于实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
在本公开的实施例中，网络设备可以通过RRC信令向UE配置PTRS最大端口数，对此本公开实施例不予限制。
根据本公开实施例的上行传输控制方法，在上行多天线面板同时传输STxMP场景下，网络配置物理上行共享信道PUSCH为多传输和接收点TRP单频网SFN传输方式下，网络设备向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
图5示出了根据本公开实施例的一种上行传输控制的流程示意图。如图5所示，该方法可由网络设备执行，且可以包括以下步骤。
S501，上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项。
在本公开的一些实施例中，在上行是否传输PTRS，可通过网络设备配置的高层参数控制。网络设备可以向UE发送RRC信令，来获取PTRS最大端口数。例如，RRC配置PTRS对应的最大端口数maxNrofPorts＝1或2。
如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层给UE配置了参数UL-PTRS-present，并且PTRS端口数是1或者2，那么通过UL DCI0_1/0_2中的PTRS-DMRS关联关系(PTRS-DMRS association)指示域指示一个DMRS端口关联这个PTRS端口。其中，PTRS的最大端口数是由高层参数PTRS-UplinkConfig中的maxNrofPorts配置为'n2'得到。如果指示的最大PTRS端口数是2，那么网络侧通过SRS资源对应的DMRS端口分成两个组，分别建议关联关系。
在本公开的一些实施例中，所述传输配置信息包括DMRS端口指示域。DCI的DMRS域中可以指示对应每个波束方向上的PUSCH传输使用的DMRS端口信息，例如，对于指示的DMRS端口为{0,1}且对应的传输方案为FDM或SFN传输，则对应每个波束方向的PUSCH传输的DMRS端口都使用端口{0,1}，即TRI为2。例如，对应指示的DMRS端口为{0，1}且对应的传输方案为SDM传输时，则也可以根据预定义的规则分别确定在每个TCI波束方向上PUSCH传输对应的DMRS端口，可能的端口分配是，第一个波束方向上的PUSCH传输使用DMRS端口为{0}，且对应的TRI为1，第二个波束方形上的PUSCH传输使用DMRS端口{1}，且对应的TRI为1。
在本公开中，在本公开的一些实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。。
换言之，对于CB PUSCH，关联不同SRS资源集合的DMRS端口指示域指示的DMRS端口/端口组相同，TPMI 1/TPMI 2分别关联对应不同的panel/TRP/TCI的第一/第二SRS资源集合。即，TPMI与SRS资源集合的对应关系可以是TPMI 1对应于第一SRS资源集合，也可以是TPMI 1对应于第二SRS资源集合。在本公开的一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同 SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合(SRS resource set indicator)指示指示域指示。
其中SRS resource set indicator指示域用于动态指示STRP和MTRP传输调度。
在单TRP时，第一个SRI/TPMI域可以和任一SRS资源关联，具体地，SRS resource set indicator指示域通过不同的码点用于STRP和MTRP之间的动态切换指示。如上述表1，在此不再赘述。
换言之，不同的SRS资源集合可以与多panel/TRP/波束TCI state上的PUSCH传输相关联，SRS资源集合与TPMI/SRI域的对应关系通过SRS resource set indicator指示域定义。R17目前协议定义第一个TPMI域对应第一个SRS资源集合，第二个TPMI域对应第二个SRS资源集合。R18具体对应关系可以是第一TPMI域对应第一SRS资源集合，也可以是第一TPMI域对应第二SRS资源集合。
在本公开的实施例中，根据多panel相应的波束方向上的PUSCH传输的码本参数配置以及相应的波束方向上的PUSCH传输的码本子集限制，可以确定码本预配置表。每个TPMI指示域占用的比特数根据码本预配置表中可用TPMI组合数量确定。
在本实施例中，网络设备向UE发送的单个DCI中携带的TCI波束指示信息指示两个或更多个波束以及传输配置信息包括两个或更多个TPMI指示域，则该单个DCI用于多天线面板多TRP传输，且该多天线面板多TRP传输为基于码本的PUSCH传输。每个波束方向上的基于码本的PUSCH传输对应一个TPMI指示域，即一个TPMI指示域可以指示在一个波束方向上的基于码本的PUSCH传输的预编码矩阵。网络设备能够确定每个波束方向上的PUSCH传输的码本参数配置以及码本子集限制，由此可以确定用于每个波束方向上的PUSCH传输的码本预配置表，网络设备向UE发送的DCI中携带的传输配置信息中包括的每个TPMI指示域可以携带索引，该索引用于根据码本预配置表同时指示TPMI和TRI。每个TPMI指示域占用的比特数根据相应的码本预配置表中可用TPMI组合数量确定。
码本参数配置可以对天线端口数、是否使用变换预编码以及maxRank进行配置，而码本子集限制包括三种，分别为：全部、部分和非相关(fullyAndPartialAndNonCoherent)；部分和非相关(partialAndNonCoherent)；非相关(nonCoherent)。
上述实施例中步骤S401的其他解释同样适用于本实施例中的步骤S501，其原理相同，在此不予赘述。
S502，对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
换言之，在本公开的方案中，可以使用决定PTRS端口数的TPMI域对应的PTRS端口与DMRS端口对应关系，并应用于两个panel的PTRS发送，即在相同的DMRS端口上发送对应的PTRS。相应地，网络设备在相同的DMRS端口上接收对应的PTRS。
在本公开的一些实施例中，所述PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。其中，实际PTRS端口数小于或等于PTRS最大端口数。
在本公开的一些实施例中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行接收。换言之，不同天线面板对应的不同探测参考信号SRS资源集合的DMRS端口指示域指示的DMRS端口或端口组相同，以实现多TRP SFN发送，并相应地实现网络设备的PTRS接收。
在一些可选实施例中，所述基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于预设协议规则确定的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别进行SFN接收。
换言之，当TPMI1指示的预编码器实际对应的PTRS端口数为N1，TPMI2指示的预编码器实际对应的PTRS端口数为N2，则PUSCH对应的实际PTRS端口数N由预设协议规则确定。
下面详细介绍预设协议规则。在本公开的一些可选实施例中，预设协议规则包括以下任一项：
在一种可选方式中，所述实际PTRS端口数为预设TPMI对应的PTRS端口数，所述预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。换言之，N由固定的TPMI域对应的PTRS端口数决定，如TPMI1指示域决定，N等于N1，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
其中，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，具体哪个TPMI生效可以通过预定义或网络配置指定。
在另一种可选方式中，所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。换言之，N等于TPMI 1/TPMI 2对应的PTRS端口数的较小值，即min{N1,N2}，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
在又一种可选方式中，所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。换言之，N等于TPMI 1/TPMI 2对应的PTRS端口数的较大值，即max{N1,N2}，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同的panel。
本公开不限制除上述可选方式之外的其他方式。
下面详细介绍PTRS与DMRS关联关系指示。首先，先对相关协议中的内容进行描述，以便于理解本公开所定义的PTRS与DMRS关联关系指示。
对于PDSCH/PUSCH信道，数据传输的数据层与解调使用的DMRS端口相对应。NR系统中数据信道(PDSCH/PUSCH)DMRS设计主要包含对Front-load DMRS以及Additional DMRS的设计，其中，对于低移动性场景，front-load DMRS能以较低的开销获得满足解调需求的信道估计性能，取决于传输所使用的正交端口数，front-load DMRS最多可以配置为两个OFDM符号。但是，NR系统所考虑的移动速度最高可达500km/h，面临动态范围如此之大的移动性，除了front-load DMRS之外，在中/高速场景之中，还需要在调度持续时间内安插更多的DMRS符号，以满足对信道时变性的估计精度。相关协议中定义了上行不同参数配置的DMRS端口分配表格，针对不同DMRS类型(1或2)、符号长度、数据传输层数、使用或不使用变换预编码(例如，dmrs-Type＝1，maxLength＝1，rank＝1，transform precoder is disabled即代表DMRS类型1，单符号，单流传输，不使用变换预编码)，可基于Table 7.3.1.1.2-8至Table 7.3.1.1.2-23进行DMRS端口分配，如上述表2至17所示，在此不再赘述。
而PTRS和DMRS的端口特性是相关的，当存在多个DMRS端口时则需要指定，某一PTRS端口和哪个或哪几个DMRS端口是相同的端口参数，即，通过PTRS和DMRS的关联关系指示域指定PTRS和DMRS端口之间的关联关系。
PTRS的端口数与相位噪声源的个数相关，当存在多个独立的相位噪声源时，每个相位噪声源都需要一个PTRS端口对其进行相位估计。因此，NR15/16中支持下行1个PTRS端口和上行2个PTRS端口。在上行是否传输PTRS，可以通过高层参数的配置来控制。如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层参数DMRS-UplinkConfig中没给UE配置phaseTrackingRS，那么上行UE不传输PTRS。如果高层给UE配置了参数UL-PTRS-present，并且PTRS端口数是1或者2，那么通过UL DCI0_1/0_2中的PTRS-DMRS关联关系(PTRS-DMRS association)指示域指示一个DMRS端口关联这个PTRS端口。
具体关联关系如上述表18至20所示，在此不再赘述。
在本公开的一些可选实施例中，响应于数据传输层数RANK等于1，所述PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口接收并使用指示的DMRS端口进行PTRS的接收。换言之，DMRS在传输中其数据传输层数不止一层，当RANK＝1时，PTRS与DMRS的关联关系是确定的，PTRS在DRMS上直接传输，此时不需要指示。
在本公开的一些可选实施例中，响应于RANK大于或等于2且所述实际PTRS端口数为1，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：
以2比特指示关联的两个DMRS端口(该方式可以针对TPMI对应全相干码字的情况)；
以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个(该方式可以针对TPMI对应部分相干码字的情况)；
相应地，网络设备可以基于PTRS-DMRS关联关系指示域确定实际接收PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口接收PTRS。
换言之，当RANK>＝2且当端口数为1时，可以使用2比特基于上表2(Table 7.3.1.1.2-25)指示具体的DMRS端口；也可以使用1比特来指示前2个DMRS端口的一个或共享同一个PTRS端口的DMRS端口中的一个。
在本公开的一些可选实施例中，响应于RANK大于或等于2且用于进行PUSCH传输的实际PTRS端口数为2，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：
以2比特指示关联的两个DMRS端口(该方式可以针对TPMI对应全相干码字的情况)；
以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个(该方式可以针对TPMI对应部分相干码字的情况)。
相应地，UE可以基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际接收PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际接收PTRS端口对应的DMRS端口，并分别接收PTRS。
其中，PTRS port 0，即实际发送PTRS端口0，第一个PTRS端口，PTRS port 1，即实际发送PTRS端口1，第二个实际发送PTRS端口。
其中，基于默认规则确定的DMRS端口为以下任一项：
前两个DMRS端口中的另一个；
RANK>2时其他DMRS端口中的任一个；
共享同一个PTRS端口的两个DMRS端口中的任一个。
换言之，当RANK>＝2且当端口数为2时，可以使用2比特基于上表4(Table 7.3.1.1.2-26)指示具体的DMRS端口；也可以使用1比特仅指示前2个DMRS端口中的一个，或仅指示第一个共享同一个PTRS端口的2个DMRS端口中的一个；另一个PTRS端口按照默认规则发送，比如，前2个DMRS端口中的另一个，或RANK>2时其他DMRS端口中的第一个，或固定共享同一个PTRS端口的两个DMRS端口中的第一个，对此本公开不予限制。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自接收相同的PTRS端口。
在本公开的一些实施例中，PT-RS的最大端口数是由高层参数PTRS-UplinkConfig中的maxNrofPorts配置为'n2'得到。如果指示的PTRS最大端口数是2，那么网络侧通过SRS资源对应的DMRS端口分成两个组，基于上述规则，分别建议关联关系。
在本公开的实施例中，由于在R16研究阶段，基于下行多TRP(发送接收点)/天线面板间的多点协作传输技术的应用，对PDSCH进行了传输增强。由于数据传输包括上下行信道的调度反馈，因此在URLLC的研究中，只对下行数据信道增强并不能保证整体的业务性能。在R17的研究中，继续对下行控制信道PDCCH以及上行的控制信道PUCCH和数据信道PUSCH进行增强。
相位噪声(Phase Noise，PN)是由本振的执行破坏了OFDM系统中各子载波的正交性，而这引起共相位误差(Common Phase Error,CPE)导致调制星座的以固定角度的旋转和引起子载波间干扰(Inter-Carrier Interference,ICI)导致星座点的散射，在高频时这种情况更加明显。由于CPE的影响更大，在NR中主要考虑对CPE进行补偿。在NR中，设计了PTRS信号用于CPE的估计，为了增强信号覆盖，提高信号质量，PTRS作为一种UE专有(UE-specific)的参考信号由网络配置给终端，PTRS用于跟踪gNB和UE中的本振引入的相位噪声。PTRS可以看做DMRS的一种扩展，他们具有紧密的关系，如采用相同的预编码，端口关联性、正交序列的生成、QCL关系等。
PTRS的端口数与相位噪声源的个数相关，当存在多个独立的相位噪声源时，每个相位噪声源都需要一个PTRS端口对其进行相位估计。
换言之，针对基于码本的情况，网络设备可以通过TPMI向UE指示不同层对应的是哪个DMRS，SRS资源集的DMRS端口指示域用来指示PUSCH传输使用的用于解调的一组DMRS端口，则UE按照基站的指示进行发送。然而对于多panel场景，由于不同panel对应的TPMI是不同的，TPMI实际对应的码字的端口分组也是不同的，比如其中之一的码字对应的是全相干码字，对应PTRS端口为1，另一对应的码字是2，那么PTRS在发送时在一个panel上按照1发送，则另一个按照2发送；而如果网络配置以SFN的传输方式进行上行传输，DMRS端口在两个panel上发送的DMRS端口为同一组，也即，panel 0发送的PUSCH和panel 1发送的PUSCH使用的是同一组DMRS端口，显然这是矛盾的。因此，上行同传在SFN下，所有的参考信号和数据都保持一致。那么在现有协议下出现TPMI指示对应到的PTRS端口不一致的情况时，应用本公开的方案可以有效解决该冲突。
综上，基于本公开的方案，能够解决在网络设备指示不同TPMI对应的PTRS实际端口数不一致的情况下，实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
此外，基站多TRP/PANEL的应用主要为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，用不同的方式在多个TRP/PANEL间协作传输数据。从网络形态角度考虑，以大量的分布式接入点加基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率，并且显著的降低越区切换带来的时延和信令开销。利用多个TRP或面板之间的协作，从多个角度的多个波束进行信道的传输/接收，可以更好的克服各种遮挡/阻挡效应，保障链路连接的鲁棒性，适合URLLC业务提升传输质量和满足可靠性要求。
上述本公开提供的实施例中，分别从UE和网络设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能，网络设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
与上述几种实施例提供的上行传输控制相对应，本公开还提供一种上行传输控制装置，由于本公开实施例提供的上行传输控制装置与上述几种实施例提供的上行传输控制相对应，因此上行传输控制的实施方式也适用于本实施例提供的上行传输控制装置，在本实施例中不再详细描述。
图6为本公开实施例提供的一种上行传输控制装置600的结构示意图，该上行传输控制装置600可配置于网络设备。
如图6所示，该装置600可以包括收发模块610。
收发模块610用于上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；以及对于基于码本的PUSCH传输，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送基于PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
根据本公开实施例的上行传输控制装置，上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本的PUSCH传输，基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送，其中所述PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS对应的DMRS端口。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
在一些实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
在一些实施例中，收发模块610具体用于：在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上发送相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行发送。
在一些实施例中，收发模块610具体用于：响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于PTRS最大端口数以及PTRS-DMRS关联关系指示域所指示的PTRS-DMRS端口之间的关联关系，根据预设协议规则，确定PTRS实际发送参数；基于PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送。
在一些实施例中，预设协议规则包括以下任一项：实际PTRS端口数为预设TPMI对应的PTRS端口数，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的 TPMI中的一个并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
在一些实施例中，收发模块610还用于：接收网络设备发送的RRC信令，其中RRC信令中包括PTRS最大端口数，实际PTRS端口数小于或等于PTRS最大端口数。
在一些实施例中，响应于数据传输层数RANK等于1，PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口发送并使用指示的DMRS端口进行PTRS的发送。
在一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为1，PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：基于PTRS-DMRS关联关系指示域确定实际发送PTRS对应的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口发送PTRS。
在一些实施例中，响应于RANK大于或等于2且用于进行PUSCH传输的实际PTRS端口数为2，PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际发送PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际发送PTRS端口对应的DMRS端口，并分别发送PTRS
在一些实施例中，基于默认规则确定的的DMRS端口为以下任一项：前两个DMRS端口中的另一个；RANK>2时其他DMRS端口中的任一个；共享同一个PTRS端口的两个DMRS端口中的任一个。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自发送相同的PTRS端口。
在一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合指示指示域指示。
综上，基于本公开的上行传输控制装置，能够解决在网络设备指示不同TPMI对应的PTRS实际端口数不一致的情况下，实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。此外，基站多TRP/PANEL的应用主要为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，用不同的方式在多个TRP/PANEL间协作传输数据。从网络形态角度考虑，以大量的分布式接入点加基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率，并且显著的降低越区切换带来的时延和信令开销。利用多个TRP或面板之间的协作，从多个角度的多个波束进行信道的传输/接收，可以更好的克服各种遮挡/阻挡效应，保障链路连接的鲁棒性，适合URLLC业务提升传输质量和满足可靠性要求。
图7为本公开实施例提供的一种上行传输控制装置700的结构示意图，该上行传输控制装置700可配置于网络设备。
如图7所示，该装置700可以包括收发模块710。
收发模块701用于上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS 实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
根据本公开实施例的上行传输控制装置，在上行多天线面板同时传输STxMP场景下，网络配置物理上行共享信道PUSCH为多传输和接收点TRP单频网SFN传输方式下，网络设备向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；对于基于码本的PUSCH传输，基于PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。本公开所提供的方案能够实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。
在一些实施例中，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
在一些实施例中，收发模块701具有用于：在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上接收相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行接收。
在一些实施例中，收发模块701具体用于：响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于预设协议规则确定的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别进行SFN接收。
在一些实施例中，预设协议规则包括以下任一项：实际PTRS端口数为预设TPMI对应的PTRS端口数，预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
在一些实施例中，收发模块701还用于：向UE发送RRC信令，其中RRC信令中包括PTRS最大端口数，实际PTRS端口数小于或等于PTRS最大端口数。
在一些实施例中，响应于数据传输层数RANK等于1，PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口接收并使用指示的DMRS端口进行PTRS的接收。
在一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为1，PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：基于PTRS-DMRS关联关系指示域确定实际接收PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用DMRS端口接收PTRS。
在一些实施例中，响应于RANK大于或等于2且实际PTRS端口数为2，PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：以2比特指示关联的两个DMRS端口；以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；其中，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：基于PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际接收PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际接收PTRS端口对应的DMRS端口，并分别接收PTRS。
在一些实施例中，基于默认规则确定的DMRS端口为以下任一项：前两个DMRS端口中的另一个；RANK>2时其他DMRS端口中的任一个；共享同一个PTRS端口的两个DMRS端口中的任一个。
在本公开的一些实施例中，在确定PTRS关联的DMRS端口时，通过预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定PTRS关联的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自接收相同的PTRS端口。
在一些实施例中，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI域的对应关系通过SRS资源集合指示指示域指示。
综上，基于本公开的上行传输控制装置，能够解决在网络设备指示不同TPMI对应的PTRS实际端口数不一致的情况下，实现PTRS的SFN传输下的增强指示，从而支持STxMP传输下SFN方案在基于码本的配置下的终端多天线面板的CPE估计，使得多点协作传输更加有效，有效提高数据传输的可靠性和吞吐率。此外，基站多TRP/PANEL的应用主要为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，用不同的方式在多个TRP/PANEL间协作传输数据。从网络形态角度考虑，以大量的分布式接入点加基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率，并且显著的降低越区切换带来的时延和信令开销。利用多个TRP或面板之间的协作，从多个角度的多个波束进行信道的传输/接收，可以更好的克服各种遮挡/阻挡效应，保障链路连接的鲁棒性，适合URLLC业务提升传输质量和满足可靠性要求。
请参见图8，图8是本公开实施例提供的一种通信装置800的结构示意图。通信装置800可以是网络设备，也可以是用户设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持用户设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置800可以包括一个或多个处理器801。处理器801可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置800中还可以包括一个或多个存储器802，其上可以存有计算机程序804，处理器801执行所述计算机程序804，以使得通信装置800执行上述方法实施例中描述的方法。可选的，所述存储器802中还可以存储有数据。通信装置800和存储器802可以单独设置，也可以集成在一起。
可选的，通信装置800还可以包括收发器805、天线806。收发器805可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器805可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置800中还可以包括一个或多个接口电路807。接口电路807用于接收代码指令并传输至处理器801。处理器801运行所述代码指令以使通信装置800执行上述方法实施例中描述的方法。
在一种实现方式中，处理器801中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器801可以存有计算机程序803，计算机程序803在处理器801上运行，可使得通信装置800执行上述方法实施例中描述的方法。计算机程序803可能固化在处理器801中，该种情况下，处理器801可能由硬件实现。
在一种实现方式中，通信装置800可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者用户设备，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图8的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图9所示的芯片的结构示意图。图9所示的芯片包括处理器901和接口902。其中，处理器901的数量可以是一个或多个，接口902的数量可以是多个。
可选的，芯片还包括存储器903，存储器903用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本公开公开的技术方案所期望的结果，本文在此不进行限制。
此外，应该理解，本公开所述的各种实施例可以单独实施，也可以在方案允许的情况下与其他实施例组合实施。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (28)

  1. 一种上行传输控制方法，其特征在于，所述方法由用户设备UE执行，所述方法包括：
    上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、解调参考信号DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；以及
    对于基于码本的PUSCH传输，基于所述PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中所述PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
  2. 根据权利要求1所述的方法，其特征在于，所述不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
  3. 根据权利要求1或2所述的方法，其特征在于，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：
    在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上发送相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行发送。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：
    响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于所述PTRS最大端口数以及PTRS-DMRS关联关系指示域所指示的PTRS-DMRS端口之间的关联关系，根据所述预设协议规则，确定所述PTRS实际发送参数；
    基于所述PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述预设协议规则包括以下任一项：
    所述实际PTRS端口数为预设TPMI对应的PTRS端口数，所述预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；
    所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；
    所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的RRC信令，
    其中所述RRC信令中包括所述PTRS最大端口数，所述实际PTRS端口数小于或等于所述PTRS最大端口数。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，
    响应于数据传输层数RANK等于1，所述PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口发送并使用指示的DMRS端口进行PTRS的发送。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，
    响应于RANK大于或等于2且所述实际PTRS端口数为1，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS对应的DMRS端口：
    以2比特指示关联的DMRS端口；
    以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；
    其中，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：
    基于所述PTRS-DMRS关联关系指示域确定实际发送PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用所述DMRS端口发送PTRS。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，
    响应于RANK大于或等于2且所述实际PTRS端口数为2，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际发送PTRS端口所使用的DMRS端口：
    以2比特指示关联的两个DMRS端口；
    以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；
    其中，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的发送包括：
    基于所述PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际发送PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际发送PTRS端口对应的DMRS端口，并分别发送PTRS。
  10. 根据权利要求9所述的方法，其特征在于，基于默认规则确定的DMRS端口为以下任一项：
    前两个DMRS端口中的另一个；
    RANK>2时其他DMRS端口中的任一个；
    共享同一个PTRS端口的两个DMRS端口中的任一个。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，通过所述预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定所述实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自发送相同的PTRS端口。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合指示指示域指示。
  13. 一种上行传输控制方法，其特征在于，所述方法由网络设备执行，所述方法包括：
    上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、解调参考信号DMRS端口指示域、以及PTRS-DMRS关联关系指示域中的至少一项；
    对于基于码本的PUSCH传输，基于所述PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中所述PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
  14. 根据权利要求13所述的方法，其特征在于，不同天线面板/TRP/波束TCI状态/SRS资源集合相关联对应的PUSCH的TO对应的DMRS端口或端口组相同。
  15. 根据权利要求13或14所述的方法，其特征在于，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
    在PUSCH多TRP SFN传输方式下，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上接收相同数量的PTRS端口数据，其中，每个PTRS端口数据相同并通过相同的一个或多个DMRS端口进行接收。
  16. 根据权利要求13至15中任一项所述的方法，其特征在于，所述基于所述传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
    响应于不同TPMI指示域指示的预编码器实际对应的PTRS端口数不同，基于所述预设协议规则确定的所述PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别进行SFN接收。
  17. 根据权利要求13至16所述的方法，其特征在于，所述预设协议规则包括以下任一项：
    所述实际PTRS端口数为预设TPMI对应的PTRS端口数，所述预设TPMI为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI中的一个，并将所确定的实际PTRS 端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；
    所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最小值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上；
    所述实际PTRS端口数为不同天线面板/TRP/波束TCI状态/SRS资源集合/PUSCH的TO所各自关联对应的TPMI对应的PTRS端口数中的最大值，并将所确定的实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口同时应用于不同天线面板/TRP/波束TCI状态/SRS资源集合各自对应的PUSCH的TO上。
  18. 根据权利要求13至17中任一项所述的方法，其特征在于，所述方法还包括：
    向所述UE发送RRC信令，
    其中所述RRC信令中包括所述PTRS最大端口数，所述实际PTRS端口数小于或等于所述PTRS最大端口数。
  19. 根据权利要求13至18中任一项所述的方法，其特征在于，
    响应于数据传输层数RANK等于1，所述PTRS-DMRS关联关系指示域为空，PTRS在不同的PUSCH的TO上分别实际对应单端口接收并使用指示的DMRS端口进行PTRS的接收。
  20. 根据权利要求13至19中任一项所述的方法，其特征在于，
    响应于RANK大于或等于2且所述实际PTRS端口数为1，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS对应的DMRS端口：
    以2比特指示关联的DMRS端口；
    以1比特指示前两个DMRS端口中的一个或共享同一个PTRS端口的DMRS端口中的一个；
    其中，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
    基于所述PTRS-DMRS关联关系指示域确定实际接收PTRS端口所使用的DMRS端口，并在不同的PUSCH的TO上分别使用所述DMRS端口接收PTRS。
  21. 根据权利要求13至20中任一项所述的方法，其特征在于，
    响应于RANK大于或等于2且所述实际PTRS端口数为2，所述PTRS-DMRS关联关系指示域通过以下方式之一确定实际接收PTRS端口所使用的DMRS端口：
    以2比特指示关联的两个DMRS端口；
    以1比特仅指示前两个DMRS端口中的一个或仅指示第一个共享同一个PTRS端口的两个DMRS端口中的一个；
    其中，所述在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上分别按照SFN传输方式进行PTRS的接收包括：
    基于所述PTRS-DMRS关联关系指示域确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第一个实际接收PTRS端口对应的DMRS端口，基于默认规则确定在不同天线面板/TRP/波束TCI状态/SRS资源集合对应的PUSCH的TO上第二个实际接收PTRS端口对应的DMRS端口，并分别接收PTRS。
  22. 根据权利要求21所述的方法，其特征在于，基于默认规则确定的DMRS端口为以下任一项：
    前两个DMRS端口中的另一个；
    RANK>2时其他DMRS端口中的任一个；
    共享同一个PTRS端口的两个DMRS端口中的任一个。
  23. 根据权利要求13至22中任一项所述的方法，其特征在于，通过所述预设协议规则确定的相应的天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO对应的TPMI来确定所述实际PTRS端口数以及实际发送PTRS端口所使用的DMRS端口，并同时在不同天线面板/TRP/波束TCI状态/SRS资源集/PUSCH的TO上在相同的DMRS端口上各自接收相同的PTRS端口。
  24. 根据权利要求13至23中任一项所述的方法，其特征在于，不同SRS资源集合与多天线面板上的PUSCH传输相关联，不同SRS资源集合与SRI/TPMI指示域的对应关系通过SRS资源集合指示指示域指示。
  25. 一种上行传输控制装置，其特征在于，所述装置配置于UE，所述装置包括收发模块，所述收发模块用于：
    上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道 PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，接收网络设备发送的相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、解调参考信号DMRS端口指示域，以及PTRS-DMRS关联关系指示域中的至少一项；以及
    对于基于码本的PUSCH传输，基于所述PTRS相关的传输配置信息和预设协议规则确定用于进行PUSCH传输的PTRS实际发送参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的发送，其中所述PTRS实际发送参数包括实际PTRS端口数、以及实际发送PTRS端口所使用的DMRS端口。
  26. 一种上行传输控制装置，其特征在于，所述装置配置于网络设备，所述装置包括收发模块，所述收发模块用于：
    上行多天线面板同时传输STxMP场景下基于单个下行控制信息DCI调度的物理上行共享信道PUSCH在网络调度为多传输和接收点TRP单频网SFN传输方式下，向UE发送相位跟踪参考信号PTRS相关的传输配置信息，其中所述传输配置信息包括PTRS最大端口数、传输预编码矩阵指示TPMI指示域、解调参考信号DMRS端口指示域、以及PTRS-DMRS关联关系指示域中的至少一项；
    对于基于码本的PUSCH传输，基于所述PTRS相关的传输配置信息和预设协议规则确定的用于进行PUSCH传输的PTRS实际接收参数，在不同天线面板/TRP/波束TCI状态/探测参考信号SRS资源集合对应的PUSCH的传输时机TO上分别按照SFN传输方式进行PTRS的接收，其中所述PTRS实际接收参数包括实际PTRS端口数、以及实际接收PTRS对应的DMRS端口。
  27. 一种通信设备，其中，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并能够实现权利要求1-24任一项所述的方法。
  28. 一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被处理器执行后，能够实现权利要求1-24任一项所述的方法。
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4657952A4 (en) * 2023-01-28 2026-03-25 Beijing Xiaomi Mobile Software Co Ltd METHOD AND APPARATUS FOR CONTROLLING UPWIND TRANSMISSION
WO2025000244A1 (zh) * 2023-06-27 2025-01-02 北京小米移动软件有限公司 通信方法、终端、网络设备
CN117063504A (zh) * 2023-06-27 2023-11-14 北京小米移动软件有限公司 通信方法、终端、网络设备
CN117044362A (zh) * 2023-06-27 2023-11-10 北京小米移动软件有限公司 传输物理上行共享信道的方法、终端、网络设备
EP4738748A1 (en) * 2023-06-29 2026-05-06 Beijing Xiaomi Mobile Software Co., Ltd. Determination method and apparatus, communication device, communication system, and storage medium
CN117083961A (zh) * 2023-06-29 2023-11-17 北京小米移动软件有限公司 上行传输控制方法及装置、通信设备、通信系统、存储介质
WO2024074065A1 (en) * 2023-06-30 2024-04-11 Lenovo (Beijing) Ltd. Methods and apparatus of ptrs transmission for pusch
CN119485477A (zh) * 2023-08-10 2025-02-18 华为技术有限公司 一种通信方法及装置
CN119729806A (zh) * 2023-09-28 2025-03-28 华为技术有限公司 一种通信方法及装置
WO2025091499A1 (zh) * 2023-11-03 2025-05-08 北京小米移动软件有限公司 上行通信方法、终端、网络设备、通信系统、存储介质
WO2025208385A1 (zh) * 2024-04-02 2025-10-09 北京小米移动软件有限公司 通信方法、终端、网络设备、通信设备、存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512582A (zh) * 2017-12-28 2020-08-07 Oppo广东移动通信有限公司 用于上行数据传输的方法和终端设备
CN112703753A (zh) * 2019-01-23 2021-04-23 Oppo广东移动通信有限公司 传输信号的方法、终端设备和网络设备
CN113271188A (zh) * 2020-02-14 2021-08-17 大唐移动通信设备有限公司 一种数据传输方法、终端和基站
CN113767594A (zh) * 2019-05-02 2021-12-07 Lg电子株式会社 在无线通信系统中发送和接收相位跟踪参考信号的方法及其设备
CN115516958A (zh) * 2020-05-07 2022-12-23 株式会社Ntt都科摩 终端、无线通信方法以及基站

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108282207B (zh) * 2017-01-06 2021-06-15 华为技术有限公司 一种预编码矩阵指示方法、装置和系统
GB201802574D0 (en) * 2018-02-16 2018-04-04 Samsung Electronics Co Ltd Configuration of reference signals in a multi-transmission point telecommunication system
ES3004959T3 (en) * 2019-11-08 2025-03-13 Ericsson Telefon Ab L M Determining phase tracking reference signals in multiple transmission points
US11722353B2 (en) * 2020-10-09 2023-08-08 Samsung Electronics Co., Ltd. Enhancements to support HST-SFN deployment scenario
WO2022187051A1 (en) * 2021-03-04 2022-09-09 Intel Corporation Multiple transmission reception point (multi-trp) pusch repetition scheduling using downlink control information (dci)
US20240178939A1 (en) * 2021-04-06 2024-05-30 Intel Corporation Techniques for multi-transmission-reception point (trp) based uplink channel transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111512582A (zh) * 2017-12-28 2020-08-07 Oppo广东移动通信有限公司 用于上行数据传输的方法和终端设备
CN112703753A (zh) * 2019-01-23 2021-04-23 Oppo广东移动通信有限公司 传输信号的方法、终端设备和网络设备
CN113767594A (zh) * 2019-05-02 2021-12-07 Lg电子株式会社 在无线通信系统中发送和接收相位跟踪参考信号的方法及其设备
CN113271188A (zh) * 2020-02-14 2021-08-17 大唐移动通信设备有限公司 一种数据传输方法、终端和基站
CN115516958A (zh) * 2020-05-07 2022-12-23 株式会社Ntt都科摩 终端、无线通信方法以及基站

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4657958A4 *

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