WO2022205306A1 - 上行相位跟踪参考信号pt-rs的增强方法、装置及通信设备 - Google Patents

上行相位跟踪参考信号pt-rs的增强方法、装置及通信设备 Download PDF

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Publication number
WO2022205306A1
WO2022205306A1 PCT/CN2021/084930 CN2021084930W WO2022205306A1 WO 2022205306 A1 WO2022205306 A1 WO 2022205306A1 CN 2021084930 W CN2021084930 W CN 2021084930W WO 2022205306 A1 WO2022205306 A1 WO 2022205306A1
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Prior art keywords
port
ports
indication
dmrs
uplink
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PCT/CN2021/084930
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English (en)
French (fr)
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刘洋
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to BR112023020111A priority Critical patent/BR112023020111A2/pt
Priority to KR1020237037644A priority patent/KR20230164157A/ko
Priority to CN202180000875.XA priority patent/CN115443711A/zh
Priority to EP21933965.2A priority patent/EP4319370A1/en
Priority to JP2023560046A priority patent/JP2024512641A/ja
Priority to PCT/CN2021/084930 priority patent/WO2022205306A1/zh
Publication of WO2022205306A1 publication Critical patent/WO2022205306A1/zh

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    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • 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
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0457—Variable allocation of band or rate
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency

Definitions

  • the present disclosure relates to the field of wireless communication technologies, and in particular, to a method, an apparatus, and a communication device for enhancing an uplink phase tracking reference signal PT-RS.
  • TRP Transmission Reception Point, sending and receiving point
  • PANEL antenna panel
  • the application of multiple TRP (Transmission Reception Point, sending and receiving point)/PANEL (antenna panel) of the base station is mainly to improve the coverage of the cell edge, provide a more balanced service quality in the service area, and cooperate among multiple TRP/PANEL in different ways. transfer data. From the perspective of network morphology, network deployment in the form of a large number of distributed access points and baseband centralized processing will be more conducive to providing a balanced user experience rate, and significantly reduce the delay and signaling overhead caused by handover. .
  • the PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • data transmission includes scheduling feedback of uplink and downlink channels
  • URLLC Physical Downlink Control Channel
  • the PDCCH PhysicalDownlink Control Channel
  • PUCCH PhysicalUplink Control Channel
  • PUSCH PhysicalUplink Shared Channel, Physical Uplink Shared Channel
  • Multi-TRP-based PUSCH enhancement currently the main solution for PUSCH transmission based on a single DCI (Downlink Control Information) control is to use two independent SRI (Schduling Request Indication, uplink scheduling request indication) fields in DCI0_1/0_2 They correspond to the SRI indications facing different TRPs respectively, and are used to control the transmission of the PUSCH facing different TRPs.
  • DCI Downlink Control Information
  • the transmission process oriented to different TRPs may not Are not the same.
  • the strongest DMRS (Demodulation Reference Signal) port associated with a PT-RS (Phase Tracking Reference Signal) with one of the TRPs is not necessarily the same as the strongest DMRS port sent to the other TRP. Therefore, it is necessary to consider the redefinition of the association relationship between the PT-RS and the different DMRS ports scheduled by the user in the uplink, that is, the correlation enhancement. Otherwise, the estimation accuracy of the PT-RS cannot be guaranteed, the compensation effect on the CPE will be reduced, and the system performance will be affected.
  • the embodiment of the first aspect of the present disclosure proposes a method for enhancing an uplink phase tracking reference signal PT-RS, which is applied to a network side device. send multiple PT-RS indication information corresponding to the receiving point TRP respectively, the PT-RS indication information is used to indicate that the PT-RS indication information is sent to the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port .
  • the sending the indication message to the user equipment UE includes: sending the indication message to the UE through downlink control information DCI.
  • the indication message is determined according to the network-configured maximum number of uplink transmission layers supported by the UE under the current partial bandwidth BWP and the network-configured number of PT-RS ports corresponding to the UE's uplink transmission.
  • the DCI in response to that the maximum number of uplink transmission layers configured by the network is greater than two layers, the DCI includes corresponding two independent PT-RS indication fields;
  • the DCI includes a corresponding PT-RS indication field
  • the instruction message is not added in the DCI
  • the indication message is not added to the DCI.
  • the method further includes: sending a PUSCH to multiple TRPs, and sending corresponding independent PT-RS reference signals to the PUSCHs of the multiple TRPs, wherein each port of the PT-RS is associated with the Modulation reference signal DMRS ports in the same TRP transmission direction are associated.
  • the indication message includes a first PT-RS indication field, and the first A PT-RS indication field includes PT-RS indication information corresponding to PT-RSs sent in multiple TRP sending directions respectively.
  • the method further includes: mapping the PT-RS port in the PT-RS indication information in all transmission occasions TO sent for multiple TRPs, so as to use the PT-RS indication information
  • the PT-RS is sent on the indicated DMRS port, wherein a group of DMRS ports associated with each PT-RS port in the multiple TRP sending directions is pre-configured, wherein the group of DMRS ports includes DMRS port for sending PT-RS.
  • the network configuration is composed of a group of DMRS ports associated with each PT-RS port. Among all ports, each PT-RS port is alternately mapped to send PT-RS on different DMRS ports associated with the PT-RS port, and in different transmission occasions TO in the corresponding TRP sending direction, the same
  • the PT-RS port is associated with a DMRS port for sending, wherein the DMRS port indicated by the PT-RS indication information is mapped on the first initial transmission opportunity TO in the corresponding TRP sending direction.
  • the indication message includes multiple second PT-RS indication fields, wherein, Each of the second PT-RS indication fields corresponds to one of the TRPs, and the second PT-RS indication fields are used to indicate the DMRS sent to the corresponding TRP and to indicate the DMRS associated with the corresponding PT-RS port port.
  • the method further includes: mapping the PT-RS port to the second PT-RS indication field in all transmission occasions TO sent for multiple TRPs, so as to use the second PT-RS
  • the DMRS port indicated by the RS indication field sends the PT-RS, wherein a group of DMRS ports associated with the PT-RS ports in the multiple TRP sending directions is pre-configured, wherein the group of DMRS ports is Include the DMRS port for sending PT-RS.
  • the method further includes: when the UE reports that the PT-RS alternate mapping mode is supported and the network configures the UE to perform the mapping according to the alternate mapping mode, in the network configuration of a group of associated DMRS ports corresponding to all Among the ports, the PT-RS ports are alternately carried on the PT-RS indication information used to indicate different DMRS ports, and are mapped in the corresponding different TOs sent to the corresponding TRPs, wherein the second The DMRS port indicated by the PT-RS indication field is mapped to the first starting TO in the corresponding TRP sending direction.
  • the indication message includes multiple third PT-RS indication fields.
  • each of the third PT-RS indication fields corresponds to one of the TRPs, and the third PT-RS indication fields are used to indicate that they are sent to the corresponding TRP and are related to two of the PT-RS ports.
  • the method further includes: mapping the PT-RS port in the third PT-RS indication field in all transmission occasions TO sent for multiple TRPs, so as to use the third PT - the two DMRS ports indicated by the RS indication field send the PT-RS, wherein a group of DMRS ports associated with each port of the PT-RS in the multiple TRP sending directions is pre-configured, wherein, Wherein, the group of DMRS ports includes DMRS ports used for sending PT-RS.
  • the PT -RS ports are alternately mapped on the PT-RS indication information used to indicate different DMRS ports in turn, and mapped in the corresponding different TOs sent to the corresponding TRPs, wherein the third PT-RS indicates The DMRS port indicated by the field is mapped to the first starting TO in the sending direction of the corresponding TRP.
  • the method further includes: receiving the number of alternately mapped DMRS ports reported by the UE and the number of DMRS ports configured by the network, wherein the number of alternately mapped DMRS ports configured by the UE is in different TRP sending directions.
  • the PT-RS port is mapped in the corresponding TO.
  • the embodiment of the second aspect of the present disclosure proposes a method for enhancing an uplink phase tracking reference signal PT-RS, which is applied to a user equipment, and includes: receiving an indication message sent by a network side device, wherein the indication message includes a method for indicating multiple send multiple PT-RS indication information corresponding to the receiving point TRP respectively, the PT-RS indication information is used to indicate that the PT-RS indication information is sent to the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port .
  • the receiving the indication message sent by the network side device includes: receiving the indication message sent by the network side device through downlink control information DCI.
  • the embodiment of the third aspect of the present disclosure proposes an enhancement device for an uplink phase tracking reference signal PT-RS, which is applied to a network side device, including:
  • a sending module configured to send an indication message to the user equipment UE, wherein the indication message includes a plurality of PT-RS indication information for indicating a plurality of sending and receiving points TRP respectively, and the PT-RS indication information is used for Indicates that it is sent for the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the embodiment of the fourth aspect of the present disclosure provides an apparatus for enhancing an uplink phase tracking reference signal PT-RS, which is applied to user equipment, including:
  • a receiving module configured to receive an indication message sent by a network side device, wherein the indication message includes a plurality of PT-RS indication information used to indicate a plurality of transmission and reception points TRP corresponding respectively, and the PT-RS indication information is used for In indicates that the DMRS port is sent for the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • Embodiments of the fifth aspect of the present disclosure provide a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, and configured to execute computer-executable instructions on the memory, Control the transceiver to send and receive wireless signals, and can implement the method for enhancing the uplink phase tracking reference signal PT-RS proposed in the embodiment of the first aspect of the present disclosure, or implement the uplink phase tracking reference proposed in the embodiment of the second aspect of the present disclosure. Enhancement method for signal PT-RS.
  • Embodiments of the sixth aspect of the present disclosure provide a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the first aspect of the present disclosure can be implemented.
  • Embodiments of the seventh aspect of the present disclosure provide a computer program product, including a computer program that, when executed by a processor, implements the method for enhancing the uplink phase tracking reference signal PT-RS proposed by the embodiments of the first aspect of the present disclosure, Alternatively, the method for enhancing the uplink phase tracking reference signal PT-RS proposed by the embodiments of the second aspect of the present disclosure is implemented.
  • an indication message is sent to the user equipment UE through the network side device, wherein the indication message includes a plurality of transmission and reception points corresponding to TRPs for indicating PT-RS indication information is used to indicate that the PT-RS indication information is sent to the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the indication message sent to the UE includes multiple PT-RS indication information sent to the corresponding TRP, and each PT-RS indication information indicates the DMRS port associated with the corresponding PT-RS port, it solves the problem that the PT-RS is based on In multi-TRP transmission, the problem that different CPE noise sources cannot be associated with the DMRS port is beneficial to improve system performance.
  • Fig. 1 is a kind of example diagram of PUSCH repeated transmission type A
  • Fig. 2 is a kind of example diagram of PUSCH repeated transmission type B
  • 3 is an example diagram of another PUSCH repeated transmission type B
  • FIG. 4 is a schematic flowchart of a method for enhancing an uplink phase tracking reference signal PT-RS according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of another method for enhancing uplink PT-RS according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of another uplink PT-RS enhancement method provided by an embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart of another method for enhancing uplink PT-RS according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of another uplink PT-RS enhancement method provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of another uplink PT-RS enhancement method provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart of another method for enhancing uplink PT-RS according to an embodiment of the present disclosure
  • FIG. 11 is a schematic flowchart of another method for enhancing uplink PT-RS according to an embodiment of the present disclosure
  • FIG. 12 is a schematic structural diagram of an apparatus for enhancing uplink PT-RS according to an embodiment of the present disclosure
  • FIG. 13 is a schematic structural diagram of another apparatus for enhancing uplink PT-RS according to an embodiment of the present disclosure
  • FIG. 14 is a block diagram of a user equipment provided by an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • Phase noise Phase Noise (Phase Noise, PN) is caused by the execution of the local oscillator destroying the orthogonality of each sub-carrier in the OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) system, which causes a common phase error (Common Phase Error, CPE), resulting in a fixed-angle rotation of the modulation constellation, and causing Inter-Carrier Interference (ICI), causing scattering of constellation points, which is more pronounced at high frequencies. Since the influence of CPE is greater, compensation for CPE is mainly considered in NR (New Radio, new air interface). In NR, the PT-RS signal is designed for CPE estimation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • ICI Inter-Carrier Interference
  • PT-RS is configured as a UE-specific reference signal by the network to the terminal.
  • the RS is used to track the phase noise introduced by the local oscillators in the gNB and UE.
  • PT-RS can be regarded as an extension of DMRS, and they have a close relationship, such as using the same precoding, port correlation, generation of orthogonal sequences, QCL relationship and so on.
  • the number of PT-RS ports is related to the number of phase noise sources. When there are multiple independent phase noise sources, each phase noise source requires a PT-RS port to estimate its phase. Therefore, NR15/16 supports one PT-RS port for downlink and two PT-RS ports for uplink.
  • Whether to transmit the PT-RS signal in the uplink is also controlled by the configuration of the high layer parameters. If the PT-RS signal is not configured for the UE in the high layer parameters, the uplink UE does not transmit the PT-RS signal. If the upper layer configures the UE with parameters containing PT-RS signals, and the number of PT-RS ports is 1 or 2, then the PTRS-DMRS association indication field in UL DCI0_1/0_2 indicates that a DM-RS port is associated with this PT-RS port . When the number of PT-RS ports is 1, the specific association relationship is shown in Table 1 below:
  • the Value in Table 1 is the indicated value, and the DMRS port is the corresponding port number relationship represented by the value indicated by the interpretation Value.
  • the first scheduled DMRS port is associated with the PT-RS port; when the value indicated by Value is 1, the second scheduled DMRS port is associated with the PT-RS port; the value indicated by Value is 2 , the third scheduled DMRS port is associated with the PT-RS port; when the value indicated by Value is 4, the fourth scheduled DMRS port is associated with the PT-RS port.
  • the maximum number of ports of PT-RS is obtained by the configuration of high layer parameters. If the indicated maximum number of PT-RS ports is 2, the network-side device divides the DMRS ports corresponding to the SRS (Sounding Reference Signal, sounding reference signal) resources into two groups, and establishes an association relationship respectively.
  • SRS Sounding Reference Signal, sounding reference signal
  • Value of MSB refers to the value indicated by the most significant bit
  • Value of LSB refers to the value indicated by the least significant bit.
  • PT-RS port 0 is associated with the first DMRS port that shares the PT-RS port 0.
  • PT-RS port 0 is associated with a second DMRS port that shares the PT-RS port 0.
  • PT-RS port 1 is associated with the first DMRS port that shares the PT-RS port 1.
  • PT-RS port 1 is associated with a second DMRS port that shares the PT-RS port 1.
  • the uplink transmission scheme of PUSCH includes two schemes of codebook-based uplink transmission and non-codebook uplink transmission.
  • the direction information can be indicated by the SRI field in the DCI signaling.
  • TDM (Testing Data Management, time division multiplexing mode) repetition modes of PUSCH mainly include PUSCH repetition type A and PUSCH repetition type B.
  • PUSCH repeated transmission type A Repeated transmission between time slots is configured through RRC (Radio Resource Control, Radio Resource Control) signaling, and the same TB (Transport Block, transport block) is repeatedly transmitted on multiple transmission occasions. Because the signal command at the edge of the cell is not very good, a message needs to be repeated several times. Therefore, this type of transmission is mainly used at the edge of the cell, and the number of transmission layers is limited to one-sided transmission.
  • a PUSCH is transmitted in consecutive K time slots, that is, K transmission opportunities, and the transmission starts on the S-th symbol in the initial time slot. Each transmission opportunity lasts for L symbols, and S+L cannot exceed the time slot boundary. .
  • FIG. 1 is an example diagram of a PUSCH repeated transmission type A. As shown in FIG. 1 , the same transmission block is repeatedly transmitted at two transmission occasions, and each transmission occasion lasts 4 symbols.
  • PUSCH repeated transmission type B This transmission type can realize continuous transmission one by one for the same TB, which can cross the time slot boundary. This transmission type does not limit the number of transmission layers, and can support data transmission of uplink layers 1-4.
  • a PUSCH starts transmission on the S-th symbol in the initial time slot, sends K transmission opportunities continuously, each transmission opportunity occupies L symbols continuously (back-to-back), and transmits S+ L may span slot boundaries.
  • Figure 2 is an example diagram of a PUSCH repeated transmission type B.
  • a PUSCH starts transmission on the 4th symbol in the initial time slot, and continuously sends 4 transmission opportunities, each of which is continuous Occupying 4 symbols, the transmission can cross the slot boundary, thereby completing the repeated transmission of a PUSCH over a length of more than one slot.
  • Figure 3 is an example diagram of another PUSCH repeated transmission type B.
  • a PUSCH starts transmission on the 4th symbol in the initial time slot, and continuously sends one transmission opportunity, each transmission opportunity Occupying 14 symbols continuously, the transmission can cross the time slot boundary, thereby completing the repeated transmission of a PUSCH over a length of more than one time slot.
  • the terminal can further obtain the spatial diversity gain by jointly sending the unified TB of the PUSCH for different TRPs, and improve the transmission reliability.
  • the transmission corresponding to different beam directions can be mapped.
  • the repeated transmission of multiple TBs can be mapped to K specific transmission occasions through the following various possible mapping rules. Therefore, corresponding to different TRPs
  • the strongest DMRS port with which the PT-RS is associated with one of the TRPs is not necessarily the same as the strongest DMRS port sent to the other TRP. Therefore, it is necessary to consider the redefinition of the association relationship between the PT-RS and the different DMRS ports scheduled by the user in the uplink, that is, the correlation enhancement. Otherwise, the estimation accuracy of the PT-RS cannot be guaranteed, the compensation effect on the CPE will be reduced, and the system performance will be affected.
  • the present disclosure provides an enhanced method, apparatus and communication device for an uplink phase tracking reference signal PT-RS.
  • FIG. 4 is a schematic flowchart of a method for enhancing an uplink phase tracking reference signal PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the network side equipment may include access network equipment and core network equipment, wherein the access network equipment is a base station as an example.
  • a base station may include a plurality of cells serving terminal devices. Depending on the specific application, each cell may contain multiple TRPs, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the base station involved in the embodiments of the present disclosure may be a BTS (Base Transceiver Station, a base transceiver station) in GSM (Global System for Mobile communications, global system for mobile communications) or CDMA (Code Division Multiple Access, code division multiple access).
  • NodeB can also be a base station (NodeB) in WCDMA (Wide-band Code Division Multiple Access, bandwidth code division multiple access), or it can be an evolution in LTE (long term evolution, long term evolution) system (evolutional) Node B (referred to as eNB or e-NodeB), 5G base station (referred to as gNB) in 5G network architecture (next generation system), or HeNB (Home evolved Node B), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiments of the present disclosure.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 101 Send an indication message to the user equipment UE, wherein the indication message includes a plurality of PT-RS indication information used to indicate that a plurality of sending and receiving point TRPs correspond respectively, and the PT-RS indication information is used to indicate that the information sent to the corresponding TRP is sent. , and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the terminal device may be a device that provides voice and/or data connectivity to the user, a hand-held device with a wireless connection function, or other processing device connected to a wireless modem.
  • the names of the terminal equipment may be different.
  • the terminal equipment may be called UE (User Equipment, user equipment).
  • the wireless terminal device may communicate with one or more CNs (Core Network, core network) via a RAN (Radio Access Network, radio access network), and the wireless terminal device may be a mobile terminal device, such as a mobile phone (or called a mobile phone).
  • CNs Core Network, core network
  • RAN Radio Access Network, radio access network
  • the wireless terminal device may be a mobile terminal device, such as a mobile phone (or called a mobile phone).
  • "Cellular" telephones) and computers with mobile terminal equipment eg portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • the terminal device may be a PCS (Personal Communication Service) phone, a cordless phone, a SIP (Session Initiated Protocol) phone, a WLL (Wireless Local Loop) station, a PDA ( Personal Digital Assistant) and other devices.
  • Wireless terminal equipment may also be referred to as system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in the embodiments of the present disclosure.
  • the network side device sends to the UE an indication message including multiple PT-RS indication information respectively corresponding to multiple TRPs.
  • PT-RS signals can be used to eliminate phase noise.
  • the PT-RS is a user terminal-specific reference signal (that is, the PT-RS signal of each terminal is different), which can be beamformed and can be included in the scheduled resources.
  • the number of PT-RS ports may be less than the total number of ports, and the orthogonality between the PT-RS ports may be implemented by FDM (Frequency-division multiplexing, frequency division multiplexing).
  • the configuration of the PT-RS signal is performed according to the oscillator quality, carrier frequency, OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) subcarrier spacing, scheduling and coding format for signal transmission.
  • OFDM Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing
  • the PT-RS indication information is used to indicate that it is sent to the corresponding TRP, and indicates the DMRS port associated with the corresponding PT-RS port.
  • an indication message is sent to the UE through a network side device, wherein the indication message includes indication information for indicating a plurality of PT-RS corresponding to the receiving points TRP respectively.
  • the PT-RS indication information is used to indicate that it is sent to the corresponding TRP, and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the indication message sent to the UE includes multiple PT-RS indication information sent to the corresponding TRP, and each PT-RS indication information indicates the DMRS port associated with the corresponding PT-RS port, it solves the problem that the PT-RS is based on In multi-TRP transmission, the problem that different CPE noise sources cannot be associated with the DMRS port is beneficial to improve system performance.
  • FIG. 5 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 201 Send an indication message to the UE through downlink control information DCI.
  • the network side device may send an indication message to the UE through DCI.
  • the indication message includes multiple PT-RS indication information used to indicate that multiple sending and receiving point TRPs correspond respectively, the PT-RS indication information is used to indicate that the information is sent to the corresponding TRP, and the indication is associated with the corresponding PT-RS port DMRS port.
  • the indication message may be determined according to the maximum number of uplink transmission layers supported by the UE under the current BWP (Bandwidth Part, partial bandwidth) configured by the network and the number of PT-RS ports corresponding to the UE uplink transmission configured by the network.
  • BWP Bandwidth Part, partial bandwidth
  • PUSCHs oriented to multiple TRPs transmit corresponding independent PT-RS reference signals respectively, wherein each port of the PT-RS is associated with a modulated reference signal DMRS port in the same TRP transmission direction.
  • FIG. 6 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 301 in response to the network configuration of the maximum number of uplink transmission layers being two layers and the number of uplink PT-RS ports being one, the DCI includes a corresponding PT-RS indication field.
  • the indication message includes the first PT-RS indication field, and the first PT-RS indication field includes PT-RS indication information corresponding to the PT-RS sent in multiple TRP sending directions respectively. That is, each PT-RS indication information in the first PT-RS indication field has a one-to-one correspondence with multiple TRPs.
  • the first PT-RS indication field may include PT-RS indication information corresponding to the transmission direction of TRP1 and PT-RS indication information corresponding to the transmission direction of TRP2.
  • the PT-RS indication information is used to indicate the DMRS port that is sent in the direction of the corresponding TRP, and indicates the DMRS port associated with the PT-RS port used by the PTRS sent in the direction of the corresponding TRP. That is, there is a one-to-one correspondence between the PT-RS ports indicated by the PT-RS indication information and the associated DMRS ports.
  • the PT-RS port in all transmission occasions TO sent for multiple TRPs, is mapped in the PT-RS indication information, so as to use the corresponding PT-RS port indicated by the PT-RS indication information
  • the associated DMRS port transmits the PT-RS.
  • a DMRS port group associated with each PT-RS port in the multiple TRP transmission directions is pre-defined or pre-configured, wherein the DMRS port group includes a DMRS port for transmitting PT-RS.
  • the most significant bit is used to indicate that the PT-RS sent to TRP1 is associated with the corresponding DMRS port that shares the PT-RS port, and the use of The least significant bit indicates that the PT-RS sent for TRP2 is associated with the corresponding DMRS port that shares the PT-RS port.
  • the DMRS port indicated by the highest indicator bit is used to transmit PT-RS; in all TO sent to TRP2, the DMRS port indicated by the lowest indicator bit is used to transmit PT-RS.
  • the network configures all ports composed of a group of DMRS ports associated with each PT-RS port. , each PT-RS port is alternately mapped to send PT-RS on different DMRS ports associated with the PT-RS port, and in different transmission occasions TO in the direction of the corresponding TRP sending direction, the same PT-RS port is used.
  • the associated DMRS port transmits the PT-RS.
  • the DMRS port indicated by the PT-RS indication information is mapped on the first initial transmission opportunity TO in the corresponding TRP sending direction.
  • the PT-RS ports are alternately mapped to a group of DMRS ports corresponding to the shared configuration, and the DMRS port indicated by the highest indicator bit is mapped to the first starting point in the beam direction.
  • the PT-RS ports are alternately mapped to a group of DMRS ports corresponding to the shared configuration, and the DMRS port indicated by the lowest indicator bit is mapped to the first starting TO in the beam direction superior.
  • alternate mapping or continuous mapping may be used for mapping between beams sent for different TRPs and TOs, and PT-RSs correspond to different TOs according to the same rule.
  • the DCI when the maximum number of uplink transmission layers configured by the network is two and the number of uplink PT-RS ports is one, the DCI includes a corresponding PT-RS indication field. Therefore, when beams are sent to multiple TRPs, the PT-RS indication field included in the DCI includes multiple PT-RS indication information corresponding to multiple TRPs one-to-one, thereby indicating that the PT-RS port is associated with the corresponding PT-RS port.
  • the DMRS port avoids the problem of inaccurate phase noise estimation due to channel variation and estimated time delay.
  • FIG. 7 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 401 in response to the network configuration setting the maximum number of uplink transmission layers to two layers and the number of uplink PT-RS ports to two, no indication message is added to the DCI.
  • the maximum number of uplink transmission layers supported by the UE configured in the network under the current BWP is two layers, and the number of uplink PT-RS ports is two, so no indication message is added to the DCI, and the network side device directly DCI is sent to the UE.
  • the number of uplink PT-RS ports is two, and one PT-RS port corresponds to one DMRS port. Therefore, it is not necessary to add an indication message in the DCI, and the DMRS port associated with the PT-RS port can also be determined. In order to avoid the problem of inaccurate estimation of phase noise due to channel variation and estimation delay.
  • FIG. 8 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 501 in response to the network configuration of the maximum number of uplink transmission layers being one layer, no indication message is added to the DCI.
  • the network side device directly sends the DCI to the UE.
  • FIG. 9 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 601 in response to the network configuration of the maximum number of uplink transmission layers being greater than two layers, the DCI includes corresponding two independent PT-RS indication fields.
  • the DCI when the maximum number of uplink transmission layers supported by the UE configured by the network under the current BWP is greater than two layers, when the network side device sends an indication message to the UE through DCI, the DCI includes corresponding two independent PT-RS indications area.
  • the indication message includes multiple Two PT-RS indication fields, wherein each second PT-RS indication field corresponds to one TRP, and the second PT-RS indication field is used to indicate that it is sent to the corresponding TRP and indicates the corresponding PT-RS port.
  • DMRS port the maximum number of uplink transmission layers supported by the UE configured by the network under the current BWP is greater than two, and the number of uplink PT-RS ports is one.
  • the indication message sent by the network-side device to the UE includes two second PT-RS indication fields, wherein one of the second PT-RS indication fields indicates that it is sent to TRP1 and indicates the DMRS port associated with the corresponding PT-RS port, and the other second PT-RS indication field indicates that it is sent to TRP2, And indicates the DMRS port associated with the corresponding PT-RS port.
  • the PT-RS port in all transmission occasions TO sent for multiple TRPs, is mapped to the DMRS port indicated by the second PT-RS indication field to send the PT-RS, wherein the predefined or preconfigured and A group of DMRS ports associated with PT-RS ports in multiple TRP transmission directions, wherein the group of DMRS ports includes DMRS ports used for transmitting PT-RS.
  • the PT-RS ports are mapped to the DMRS ports indicated by the first and second PT-RS indication fields for transmission;
  • the PT-RS port is mapped and sent on the DMRS port indicated by the second second PT-RS indication field.
  • the UE when the UE reports that the PT-RS alternate mapping mode is supported and the network configures the UE to perform the mapping according to the alternate mapping mode, among all ports corresponding to a group of associated DMRS ports configured by the network, the PT-RS ports are alternately carried on the On different DMRS ports, and mapped to different TOs sent to corresponding TRPs.
  • the DMRS port indicated by the second PT-RS indication field is mapped to the first starting TO in the corresponding TRP sending direction.
  • a group of DMRS ports corresponding to the configuration is shared in an alternate mapping manner, and the first and second PT-RS indication fields indicate The DMRS port is mapped on the first starting TO in the corresponding TRP1 sending direction; in all TOs sent towards TRP2, a corresponding group of DMRS ports are shared and configured in an alternate mapping manner, and the second PT-RS The DMRS port indicated by the indication field is mapped to the first starting TO in the corresponding TRP2 sending direction.
  • the indication message includes multiple third PT-RS indication fields .
  • each third PT-RS indication field corresponds to one TRP, and the third PT-RS indication field is used to indicate two DMRS ports sent to the corresponding TRP and associated with two PT-RS ports.
  • the first third PT-RS indication field indicates the two DMRS ports associated with the two PT-RS ports for TRP1 transmission
  • the RS indication field indicates the two DMRS ports associated with the two PT-RS ports for TRP2 transmission.
  • the PT-RS port in all transmission occasions TO sent for multiple TRPs, is mapped on the two DMRS ports indicated by the third PT-RS indication field to send the PT-RS, wherein the predefined or A set of DMRS ports associated with each port of the PT-RS in multiple TRP transmit directions is preconfigured.
  • a group of DMRS ports includes DMRS ports used for transmitting PT-RS.
  • the PT-RS ports are mapped to the two DMRS ports indicated by the first and third PT-RS indication fields for transmission, and in all TOs sent to TRP1 In the TO sent by TRP2, the PT-RS ports are mapped on the two DMRS ports indicated by the second and third PT-RS indication fields for sending.
  • the UE when the UE reports that the PT-RS alternate mapping mode is supported and the network configures the UE to perform the mapping according to the alternate mapping mode, among all the ports corresponding to a group of associated DMRS ports configured by the network, the PT-RS ports are alternately mapped in sequence. On different DMRS ports, and mapped in different TOs sent to corresponding TRPs.
  • the DMRS port indicated by the third PT-RS indication field is mapped to the first starting TO in the corresponding TRP sending direction.
  • each port in all TOs sent to TRP1, each port is alternately mapped in the corresponding shared DMRS port group, and the PT-RS is mapped to a group of DMRS ports corresponding to the shared configuration.
  • the two DMRS ports indicated by the first and third PT-RS indication fields are mapped on the first starting TO in the TRP sending direction; in all TOs sent towards TRP2, each port is Alternate mapping in the corresponding shared DMRS port group to obtain PT-RS mapping on a group of DMRS ports corresponding to the shared configuration, wherein the DMRS ports indicated in the second and third PT-RS indication fields are mapped in the TRP sending direction.
  • FIG. 10 is a schematic flowchart of another method for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the network side equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 701 Receive the number of DMRS ports supported by the UE for alternate mapping and the number of DMRS ports configured by the network.
  • the number of alternately mapped DMRS ports configured by the UE maps PT-RS in TOs corresponding to different TRP transmission directions.
  • the UE may configure the number of DMRS ports for alternately mapping transmission beams according to actual requirements, and then report the number of ports to the network side device, so that the network side device receives the number of alternately mapped DMRS ports reported by the UE.
  • FIG. 11 is a schematic flowchart of another method for enhancing uplink PT-RS provided by the embodiment of the present disclosure.
  • the method for enhancing the uplink PT-RS can be applied to the user equipment.
  • the method for enhancing the uplink PT-RS may be performed alone, or may be performed in combination with any of the embodiments of the present disclosure or possible implementations in the embodiments, or may be performed in combination with any technical solution in the related art executed together.
  • the method for enhancing the uplink PT-RS may include the following steps:
  • Step 801 Receive an indication message sent by a network side device.
  • the indication message includes multiple PT-RS indication information used to indicate that multiple sending and receiving point TRPs correspond respectively, the PT-RS indication information is used to indicate that the information is sent to the corresponding TRP, and the indication is associated with the corresponding PT-RS port The demodulation reference signal DMRS port.
  • the UE may receive an indication message sent by the network side device through the DCI.
  • the UE receives an indication message sent by a network side device, wherein the indication message includes a plurality of PT-RS indications for indicating a plurality of sending and receiving points corresponding to TRPs respectively information, the PT-RS indication information is used to indicate that it is sent for the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the indication message sent to the UE includes multiple PT-RS indication information sent to the corresponding TRP, and each PT-RS indication information indicates the DMRS port associated with the corresponding PT-RS port, it solves the problem that the PT-RS is based on In multi-TRP transmission, the problem that different CPE noise sources cannot be associated with the DMRS port is beneficial to improve system performance.
  • the present disclosure also provides an apparatus for enhancing the uplink PT-RS.
  • the methods for enhancing the uplink PT-RS provided in the above-mentioned embodiments of FIG. 4 to FIG. 10 correspond to the methods for enhancing the uplink PT-RS. Therefore, the implementation of the method for enhancing the uplink PT-RS is also applicable to the device for enhancing the uplink PT-RS provided by the embodiments of the present disclosure. The embodiments of the present disclosure will not be described in detail.
  • FIG. 12 is a schematic structural diagram of an apparatus for enhancing an uplink PT-RS according to an embodiment of the present disclosure.
  • the apparatus can be applied to network side equipment.
  • the apparatus 1200 for enhancing the uplink PT-RS may include: a sending module 1201 .
  • the sending module 1201 is configured to send an indication message to the user equipment UE, wherein the indication message includes a plurality of PT-RS indication information used to indicate that a plurality of sending and receiving points TRP respectively correspond, and the PT-RS indication information is used to indicate that the corresponding TRP is sent and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the sending module 1201 may also be configured to send an indication message to the UE through the downlink control information DCI.
  • the indication message is determined according to the network-configured maximum number of uplink transmission layers supported by the UE under the current partial bandwidth BWP and the network-configured number of PT-RS ports corresponding to the UE's uplink transmission.
  • the DCI includes a corresponding PT-RS indication field
  • the instruction message is not added to the DCI
  • no indication message is added to the DCI
  • the DCI includes corresponding two independent PT-RS indication fields.
  • corresponding independent PT-RS reference signals are respectively sent for multiple TRPs, wherein each port of the PT-RS is associated with a modulated reference signal DMRS port in the same TRP sending direction.
  • the indication message in response to that the maximum number of uplink transmission layers configured by the network is two, and the number of uplink PT-RS ports is one, the indication message includes the first PT-RS indication field, and the first PT-RS indication field includes and The PT-RS indication information corresponding to the PT-RS sent by multiple TRP sending directions one-to-one.
  • the PT-RS port is mapped in the PT-RS indication information, so as to use the DMRS port indicated by the PT-RS indication information to send the PT-RS , wherein a group of DMRS ports associated with each PT-RS port in the multiple TRP transmission directions is pre-configured, wherein the group of DMRS ports includes DMRS ports used for transmitting PT-RS.
  • the network configures the UE to perform the mapping according to the alternate mapping mode, in all ports configured by the network and composed of a group of DMRS ports associated with each PT-RS port, Each PT-RS port is alternately mapped to send PT-RS on different DMRS ports associated with the PT-RS port in turn, and in the different transmission occasions TO in the corresponding TRP sending direction, the PT-RS port related
  • the DMRS port indicated by the PT-RS indication information is mapped to the first initial transmission opportunity TO in the corresponding TRP sending direction.
  • the indication message includes multiple second PT-RS indication fields, where each second PT-RS The RS indication field corresponds to one TRP, and the second PT-RS indication field is used to indicate that it is sent for the corresponding TRP, and indicates the DMRS port associated with the corresponding PT-RS port.
  • the PT-RS port is mapped to the DMRS port indicated by the second PT-RS indication field to send the PT-RS, wherein the PT-RS is pre-configured with multiple TRPs.
  • the PT-RS ports are alternately carried on different ports in turn.
  • the PT-RS is sent on the DMRS port of the corresponding TRP, and is mapped in the corresponding different TOs sent to the corresponding TRP, wherein the DMRS port indicated by the second PT-RS indication field is mapped to the first starting TO in the corresponding TRP sending direction superior.
  • the indication message includes a plurality of third PT-RS indication fields, wherein each third PT-RS - The RS indication field corresponds to one TRP, and the third PT-RS indication field is used to indicate two DMRS ports sent for the corresponding TRP and associated with the two PT-RS ports.
  • the PT-RS port is mapped to the two DMRS ports indicated by the third PT-RS indication field to send the PT-RS, wherein the pre-configured and A group of DMRS ports associated with each port of the PT-RS in multiple TRP transmission directions, wherein the group of DMRS ports includes a DMRS port for transmitting PT-RS.
  • the PT-RS ports are alternately mapped to different ports in turn.
  • the PT-RS is sent on the DMRS port of the corresponding TRP, and is mapped in the corresponding different TOs sent to the corresponding TRP, wherein the DMRS port indicated by the third PT-RS indication field is mapped to the first starting TO in the corresponding TRP sending direction superior.
  • the uplink PT-RS enhancement apparatus 1200 may further include: a receiving module, configured to receive the number of DMRS ports supported by the UE reporting the alternate mapping, and the number of DMRS ports configured by the network, wherein the alternate mapping configured by the UE The number of DMRS ports is mapped to PT-RS ports in TO corresponding to different TRP transmission directions.
  • the apparatus for enhancing the uplink PT-RS sends an indication message to the UE through the network side device, where the indication message includes indication information for indicating a plurality of PT-RS corresponding to the receiving points TRP respectively, and the PT -
  • the RS indication information is used to indicate that it is sent for the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the indication message sent to the UE includes multiple PT-RS indication information sent to the corresponding TRP, and each PT-RS indication information indicates the DMRS port associated with the corresponding PT-RS port, it solves the problem that the PT-RS is based on In multi-TRP transmission, the problem that different CPE noise sources cannot be associated with the DMRS port is beneficial to improve system performance.
  • the present disclosure also provides an apparatus for enhancing the uplink PT-RS.
  • the method for enhancing the uplink PT-RS provided in the embodiment corresponds to the method for enhancing the uplink PT-RS. Therefore, the implementation of the method for enhancing the uplink PT-RS is also applicable to the device for enhancing the uplink PT-RS provided in the embodiment of the present disclosure. Describe in detail.
  • FIG. 13 is a schematic structural diagram of another apparatus for enhancing uplink PT-RS according to an embodiment of the present disclosure.
  • the apparatus can be applied in user equipment.
  • the uplink PT-RS enhancement apparatus 1300 may include: a receiving module 1301, configured to receive an indication message sent by a network-side device, wherein the indication message includes a TRP used to indicate a plurality of sending and receiving points respectively.
  • the PT-RS indication information is used to indicate that it is sent for the corresponding TRP, and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the receiving module 1301 may also be configured to receive an indication message sent by the network side device through the downlink control information DCI.
  • the uplink PT-RS enhancement apparatus receives, through the UE, an indication message sent by a network-side device, where the indication message includes a plurality of PT-RS indications used to indicate that a plurality of sending and receiving point TRPs respectively correspond information, the PT-RS indication information is used to indicate that it is sent for the corresponding TRP and indicates the demodulation reference signal DMRS port associated with the corresponding PT-RS port.
  • the indication message sent to the UE includes multiple PT-RS indication information sent to the corresponding TRP, and each PT-RS indication information indicates the DMRS port associated with the corresponding PT-RS port, it solves the problem that the PT-RS is based on In multi-TRP transmission, the problem that different CPE noise sources cannot be associated with the DMRS port is beneficial to improve system performance.
  • the present disclosure also proposes a communication device.
  • the communication device includes a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being executed by the processor, wherein the processor executes the foregoing method when the executable program is executed.
  • the communication device may be the aforementioned terminal device, access network device or core network device.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to memorize and store information on the communication device after the power is turned off.
  • the communication device includes a terminal device, an access network device or a core network device.
  • the processor may be connected to the memory through a bus or the like, for reading the executable program stored on the memory, for example, at least one of FIG. 4 to FIG. 11 .
  • the present disclosure also proposes a computer storage medium.
  • the computer storage medium provided by the embodiment of the present disclosure stores an executable program; after the executable program is executed by the processor, the foregoing method can be implemented, for example, as shown in at least one of FIG. 4 to FIG. 11 .
  • FIG. 14 is a block diagram of a user equipment according to an embodiment of the present disclosure.
  • user equipment 1400 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • the user equipment 1400 may include at least one of the following components: a processing component 1402, a memory 1404, a power supply component 1406, a multimedia component 1408, an audio component 1410, an input/output (I/O) interface 1412, a sensor component 1414, and Communication component 1416.
  • a processing component 1402 a memory 1404, a power supply component 1406, a multimedia component 1408, an audio component 1410, an input/output (I/O) interface 1412, a sensor component 1414, and Communication component 1416.
  • the processing component 1402 generally controls the overall operations of the user equipment 1400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 1402 can include at least one processor 1420 to execute instructions to perform all or part of the steps of the above-described methods.
  • processing component 1402 can include at least one module that facilitates interaction between processing component 1402 and other components.
  • processing component 1402 may include a multimedia module to facilitate interaction between multimedia component 1408 and processing component 1402.
  • the memory 1404 is configured to store various types of data to support operations at the terminal device 1400 . Examples of such data include instructions for any application or method operating on the terminal device 1400, contact data, phonebook data, messages, pictures, videos, and the like.
  • Memory 1404 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 1406 provides power to various components of user equipment 1400 .
  • Power components 1406 may include a power management system, at least one power source, and other components associated with generating, managing, and distributing power to user equipment 1400 .
  • Multimedia component 1408 includes a screen that provides an output interface between the user device 1400 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes at least one touch sensor to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect wake-up time and pressure associated with the touch or swipe action.
  • the multimedia component 1408 includes a front-facing camera and/or a rear-facing camera. When the user equipment 1400 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 1410 is configured to output and/or input audio signals.
  • audio component 1410 includes a microphone (MIC) that is configured to receive external audio signals when user device 1400 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 1404 or transmitted via communication component 1416 .
  • audio component 1410 also includes a speaker for outputting audio signals.
  • the I/O interface 1412 provides an interface between the processing component 1402 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor component 1414 includes at least one sensor for providing status assessment of various aspects for user device 1400 .
  • the sensor component 1414 can detect the open/closed state of the terminal device 1400, the relative positioning of the components, for example, the components are the display and the keypad of the user device 1400, and the sensor component 1414 can also detect the user device 1400 or one of the user devices 1400.
  • the location of components changes, the presence or absence of user contact with the user equipment 1400, the orientation or acceleration/deceleration of the user equipment 1400, and the temperature of the user equipment 1400 changes.
  • Sensor assembly 1414 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 1414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 1414 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 1416 is configured to facilitate wired or wireless communication between user device 1400 and other devices.
  • User equipment 1400 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 1416 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1416 also includes a near field communication (NFC) module to facilitate short-range communication.
  • NFC near field communication
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • user equipment 1400 may be implemented by at least one application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate An array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are used to implement the enhanced method for uplink PT-RS in the above-mentioned embodiment of FIG. 11 .
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • DSPD digital signal processing device
  • PLD programmable logic device
  • FPGA field programmable gate An array
  • controller a controller
  • microcontroller a microprocessor or other electronic components
  • non-transitory computer-readable storage medium including instructions, such as a memory 1404 including instructions, which are executable by the processor 1420 of the user equipment 1400 to perform the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • the network side device may be the access network device or the core network device in the foregoing embodiment.
  • the network-side device 1500 includes a processing component 1522, which further includes at least one processor, and a memory resource represented by a memory 1532 for storing instructions executable by the processing component 1522, such as an application program.
  • An application program stored in memory 1532 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 1522 is configured to execute an instruction to execute any method of the foregoing method applied to the access network device or the core network device, for example, the uplink PT-RS shown in any of the embodiments of FIGS. 4 to 10 . enhancement method.
  • the network side device 1500 may also include a power supply component 1526 configured to perform power management of the network side device 1500, a wired or wireless network interface 1550 configured to connect the network side device 1500 to the network, and an input/output (I/O) ) interface 1558.
  • the network side device 1500 can operate based on an operating system stored in the memory 1532, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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Abstract

本公开提出了一种上行相位跟踪参考信号PT-RS的增强方法、装置及通信设备，涉及无线通信技术领域。其中，方法包括：通过网络侧设备向UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。

Description

上行相位跟踪参考信号PT-RS的增强方法、装置及通信设备 技术领域
本公开涉及无线通信技术领域，尤其涉及一种上行相位跟踪参考信号PT-RS的增强方法、装置及通信设备。
背景技术
基站多TRP(TransmissionReceptionPoint，发送接收点)/PANEL(天线面板)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PANEL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(Ultra Reliable and Low Latency Communication，超可靠低时延通信)业务提升传输质量和满足可靠性要求。
在R16研究阶段，基于下行多TRP/PANEL间的多点协作传输技术的应用，对PDSCH(PhysicalDownlink SharedChannel，物理下行共享信道)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。因此在R17的研究中，继续对PDCCH(PhysicalDownlink Control Channel，物理下行控制信道)以及PUCCH(PhysicalUplinkControl Channel，物理上行控制信道)和PUSCH(PhysicalUplink SharedChannel，物理上行共享信道)进行增强。
基于多TRP的PUSCH增强，目前基于单个DCI(Downlink Control Information，下行控制信息)控制的PUSCH发送的主要方案是在DCI0_1/0_2中使用两个独立的SRI(Schduling Request Indication，上行调度请求指示)域分别对应面对不同的TRP的SRI指示，用来控制PUSCH面向不同TRP的发送。
对于面向不同TRP的PUSCH传输中，由于在FR2(FrequencyRange 2，第二频率范围)下，终端存在的不同CPE(Common Phase Error，共相位误差)噪声源可能导致在面向不同的TRP传输过程中并不相同。PT-RS(Phase Tracking Reference Signal，相位跟踪参考信号)与其中一个TRP关联的最强DMRS(DemodulationReference Signal，解调参考信号)端口不一定和向另一个TRP发送的最强DMRS端口相同。因此需要考虑PT-RS与用户上行调度的不同的DMRS端口之间的关联关系的重定义、即相关增强。否则不能保证PT-RS的估计精度，对CPE的补偿效果降低，影响系统性能。
发明内容
本公开第一方面实施例提出了一种上行相位跟踪参考信号PT-RS的增强方法，应用于网络侧设备，包括：向用户设备UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
可选地，所述向用户设备UE发送指示消息，包括：通过下行控制信息DCI向所述UE发送所述指示消息。
可选地，根据网络配置的所述UE在当前部分带宽BWP下支持的上行最大传输层数以及所述网络配置的UE上行传输对应的PT-RS端口数量确定所述指示消息。
可选地，响应于所述网络配置的上行最大传输层数大于两层，则所述DCI中包括对应两个独立的PT-RS指示域；
响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为一个，则所述DCI中包括对应一个PT-RS指示域；
响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为两个，则不在所 述DCI之中添加所述指示消息；
响应于所述网络配置的上行最大传输层数为一层，则不在所述DCI之中添加所述指示消息。
可选地，所述方法还包括：面向多个TRP发送PUSCH，面向所述多个TRP的PUSCH分别发送对应各自独立的PT-RS参考信号，其中，所述PT-RS的每个端口都与同一TRP发送方向上的调制参考信号DMRS端口相关联。
可选地，响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为一个，则所述指示消息包括第一PT-RS指示域，且所述第一PT-RS指示域包括与多个TRP发送方向发送的PT-RS分别对应的PT-RS指示信息。
可选地，所述方法还包括：在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述PT-RS指示信息中，以采用所述PT-RS指示信息指示的DMRS端口上发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的每个PT-RS端口相关联的一组DMRS端口，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，当UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的与每个PT-RS端口相关联的一组DMRS端口组成的所有端口中，每个PT-RS端口交替映射在与所述PT-RS端口相关联的不同的DMRS端口上发送PT-RS，并在面向对应TRP发送方向上的不同传输时机TO中，采用与所述PT-RS端口相关联DMRS端口进行发送，其中，所述PT-RS指示信息指示的DMRS端口映射在对应TRP发送方向上的第一个起始传输时机TO上。
可选地，响应于所述网络配置的上行最大传输层数大于两层，且所述上行PT-RS端口数量为一个，则所述指示消息包括多个第二PT-RS指示域，其中，每个所述第二PT-RS指示域与一个所述TRP对应，所述第二PT-RS指示域用于表示面向对应TRP发送的，且指示与对应所述PT-RS端口相关联的DMRS端口。
可选地，所述方法还包括：在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述第二PT-RS指示域，以采用所述第二PT-RS指示域指示的DMRS端口发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的所述PT-RS端口相关联的一组DMRS端口，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，所述方法还包括：当所述UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，所述PT-RS端口依次交替承载在用于指示不同的DMRS端口的所述PT-RS指示信息上，并映射在对应的面向对应TRP发送的不同TO中，其中，所述第二PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
可选地，响应于所述网络配置的上行最大传输层数大于两层，且所述上行PT-RS端口数量为所述两个，则所述指示消息包括多个第三PT-RS指示域，其中，每个所述第三PT-RS指示域与一个所述TRP对应，所述第三PT-RS指示域用于表示面向对应TRP发送的，且与两个所述PT-RS端口相关联的两个DMRS端口。
可选地，所述方法还包括：在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述第三PT-RS指示域中，以采用所述第三PT-RS指示域指示的两个DMRS端口发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的所述PT-RS的每个端口相关联的一组DMRS端口，其中，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，当所述UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，所述PT-RS端口依次交替映射在用于指示并在不同的DMRS端口的所述PT-RS指示信息上，并映射在对应的面向对应TRP发送的不同TO中，其中，所述第三PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
可选地，所述方法还包括：接收所述UE上报支持的交替映射DMRS端口数目，且由网络配置的DMRS端口数目，其中，所述UE配置的交替映射DMRS端口数目在不同的TRP发送方向对应的TO中映射所述PT-RS端口。
本公开第二方面实施例提出了一种上行相位跟踪参考信号PT-RS的增强方法，应用于用户设备，包括：接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
可选地，所述接收网络侧设备发送的指示消息，包括：接收所述网络侧设备通过下行控制信息DCI发送的所述指示消息。
本公开第三方面实施例提出了一种上行相位跟踪参考信号PT-RS的增强装置，应用于网络侧设备，包括：
发送模块，用于向用户设备UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
本公开第四方面实施例提出了一种上行相位跟踪参考信号PT-RS的增强装置，应用于用户设备，包括：
接收模块，用于接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
本公开第五方面实施例提出了一种通信设备，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，并能够实现本公开第一方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法，或者，实现本公开第二方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法。
本公开第六方面实施例提出了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，能够实现本公开第一方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法，或者，实现本公开第二方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法。
本公开第七方面实施例提出了一种计算机程序产品，包括计算机程序，所述计算机程序被处理器执行时实现本公开第一方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法，或者，实现本公开第二方面实施例提出的上行相位跟踪参考信号PT-RS的增强方法。
本公开实施例提供的上行PT-RS的增强方法、装置及通信设备，通过网络侧设备向用户设备UE发送指示消息，其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。
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为一种PUSCH重复传输类型A的示例图；
图2为一种PUSCH重复传输类型B的示例图；
图3为另一种PUSCH重复传输类型B的示例图；
图4为本公开实施例所提供的一种上行相位跟踪参考信号PT-RS的增强方法的流程示意图；
图5为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图6为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图7为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图8为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图9为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图10为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图11为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图；
图12为本公开实施例提供的一种上行PT-RS的增强装置的结构示意图；
图13为本公开实施例提供的另一种上行PT-RS的增强装置的结构示意图；
图14为本公开实施例所提供的一种用户设备的框图；
图15为本公开实施例所提供的一种网络侧设备的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
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要素。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。
相位噪声(Phase Noise，PN)是由本振的执行破坏了OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用)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(New Radio，新空口)中主要考虑对CPE进行补偿。在NR中，设计了PT-RS信号用于CPE的估计，为了增强信号覆盖，提高信号质量，PT-RS作为一种UE专有(UE-specific)的参考信号由网络配置给终端，PT-RS用于跟踪gNB和UE中的本振引入的相位噪声。PT-RS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。
PT-RS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PT-RS端口对其进行相位估计。因此，NR15/16中支持下行1个PT-RS端口和上行2个PT-RS端口。
在上行是否传输PT-RS信号，也是通过高层参数的配置来控制。如果高层参数中没给UE配置PT-RS信号，那么上行UE不传输PT-RS信号。如果高层给UE配置了参数含有PT-RS信号，并且PT-RS端口数是1或者2，那么通过UL DCI0_1/0_2中的PTRS-DMRS association指示域指示一个DM-RS端口关联这个PT-RS端口。在PT-RS端口数为1时，具体关联关系如下表1所示：
值(Value) DMRS端口
0 第一个调度DMRS端口
1 第二个调度DMRS端口
2 第三个调度DMRS端口
3 第四个调度DMRS端口
表1
其中，表1中Value是指示的值，DMRS端口是解释Value指示的值代表的对应端口号关系。Value指示的值为0时，第一个调度DMRS端口与PT-RS端口相关联；Value指示的值为1时，第二个调度DMRS端口与PT-RS端口相关联；Value指示的值为2时，第三个调度DMRS端口与PT-RS端口相关联；Value指示的值为4时，第四个调度DMRS端口与PT-RS端口相关联。
PT-RS的最大端口数是由高层参数配置得到的。如果指示的最大PT-RS端口数是2，那么网络侧设备通过SRS(Sounding Reference Signal，探测参考信号)资源对应的DMRS端口分成两个组，分别建立关联关系。
在PT-RS端口数为2时，具体关联关系如下表2所示：
Figure PCTCN2021084930-appb-000001
表2
其中，Value of MSB是指最高有效位指示的值，Value of LSB是指最低有效位指示的值。在最高有效位指示的值为0时，PT-RS端口0与共享该PT-RS端口0的第一DMRS端口相关联。在最高有效位指示的值为1时，PT-RS端口0与共享该PT-RS端口0的第二DMRS端口相关联。在最低有效位指示的值为0时，PT-RS端口1与共享该PT-RS端口1的第一DMRS端口相关联。在最低有效位指示的值为1时，PT-RS端口1与共享该PT-RS端口1的第二DMRS端口相关联。
可以理解的是，表1和表2中的每一个元素都是独立存在的，这些元素被示例性的列在同一张表格中，但是并不代表表格中的所有元素必须根据表格中所示的同时存在。其中每一个元素的值，是不依赖于表1和表2中任何其他元素值。因此本领域内技术人员可以理解，该表1和表2中的每一个元素的取值都是一个独立的实施例。
PUSCH的上行传输方案包括基于码本的上行传输和非码本上行传输这两种方案。对于面向不同TRP的PUSCH发送，方向信息可以通过DCI信令中的SRI域来指示。目前PUSCH的TDM(Testing Data Management，时分复用模式)重复方式主要有PUSCH重复类型A和PUSCH重复类型B。
PUSCH重复传输类型A：通过RRC(Radio Resource Control，无线资源控制)信令配置时隙间的重复传输，在多个传输时机上重复传输相同的TB(Transport Block，传输块)。由于小区边缘的信号指令不太好，一个信息需要重复发几次，因此，这种传输类型主要应用在小区边缘，同时限制了传输层数为单侧传输。一个PUSCH在连续的K个时隙中传输，即K个传输时机，起始时隙中的第S个符号上开始传输，每个传输时机持续L个符号，同时S+L不能超过时隙边界。
图1为一种PUSCH重复传输类型A的示例图，如图1所示，在两个传输时机重复传输相同的传输块，每次传输时机持续4个符号。
PUSCH重复传输类型B：这种传输类型可以实现对于同一个TB的一个一个的连续传输，可以跨时隙边界。这种传输类型并没有对传输层数有限制，可以支持上行1-4层的数据传输。在时域上，一个PUSCH在起始时隙中的第S个符号上开始传输，连续发送K个传输时机，每个传输时机都连续(back-to-back)占用L个符号，传输S+L可以跨时隙边界。
图2为一种PUSCH重复传输类型B的示例图，如图2所示，一个PUSCH在起始时隙中的第4个符号上开始传输，连续发送4个传输时机，每个传输时机都连续占用4个符号，传输可以跨时隙边界，从而在大于一个时隙长度上完成一PUSCH的重复传输。
图3为另一种PUSCH重复传输类型B的示例图，如图3所示，一个PUSCH在起始时隙中的第4个符号上开始传输，连续发送1个传输时机，每个传输时机都连续占用14个符号，传输可以跨时隙边界，从而在大于一个时隙长度上完成一PUSCH的重复传输。
对于基于多TRP传输的PUSCH，终端通过面向不同的TRP联合发送PUSCH的统一TB来进一步得到空间分集增益，提高传输可靠性。对于不同的传输时机，可以映射不同的波束方向对应的传输，具体可以通过下述多种可能的映射规则方式把多个TB的重复传输映射到K个具体的传输时机，因此，对应面向不同TRP的波束发送的传输时机即被分为两组。下面以K＝8为例说明。例如，交替映射：12121212；连续映射：11221122；对半映射：11112222。
对于面向不同TRP的PUSCH传输中，终端存在的不同CPE噪声源可能导致在面向不同的TRP传输过程中并不相同。PT-RS与其中一个TRP关联的最强DMRS端口不一定和向另一个TRP发送的最强DMRS端口相同。因此需要考虑PT-RS与用户上行调度的不同的DMRS端口之间的关联关系的重定义即相关增强。否则不能保证PT-RS的估计精度，对CPE的补偿效果降低，影响系统性能。
针对上述问题，本公开提供了上行相位跟踪参考信号PT-RS的增强方法、装置及通信设备。
图4为本公开实施例所提供的一种上行相位跟踪参考信号PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。
其中，网络侧设备，可以包括接入网设备和核心网设备，其中，接入网设备以基站为例。基站可以包括多个为终端设备提供服务的小区。根据具体应用场合不同，每个小区又可以包含多个TRP，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。例如，本公开实施例涉及的基站可以是GSM(Global System for Mobile communications，全球移动通信系统)或CDMA(Code Division Multiple Access，码分多址接入)中的BTS(Base Transceiver Station，基站收发台)，也可以是WCDMA(Wide-band Code Division Multiple Access，带宽码分多址接入)中的基站(NodeB)，还可以是LTE(long term evolution，长期演进)系统中的演进型(evolutional)Node B(简称eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(简称gNB)，也可以是HeNB(Home evolved Node B，家庭演进基站)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。
如图4所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤101，向用户设备UE发送指示消息，其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
其中，终端设备可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为UE(User Equipment，用户设备)。其中，无线终端设备可以经RAN(Radio Access Network，无线接入网)与一个或多个CN(Core Network，核心网)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。
举例而言，终端设备可以为PCS(Personal Communication Service，个人通信业务)电话、无绳电话、SIP(Session Initiated Protocol，会话发起协议)话机、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digital Assistant，个人数字助理)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公 开实施例中并不限定。
本公开实施例中，在PUSCH重复传输中，由于信道变化和估计时延的影响，与PT-RS端口相关联的端口很难在多个传输时机持不变，因此，对于面向不同TRP的PUSCH传输时，网络侧设备向UE发送包括用于指示多个TRP分别对应的多个PT-RS指示信息的指示消息。
随着震荡器载波频率的上升，相位噪声也会增大，对工作于高频段(比如毫米波频段)的5G无线网络，可以利用PT-RS信号来消除相位噪声。PT-RS是用户终端特定的参考信号(即每个终端的PT-RS信号不同)，可被波束赋形、可被纳入到受调度的资源。PT-RS端口的数量可以小于总的端口数，而且PT-RS端口之间的正交可通过FDM(Frequency-division multiplexing，频分多路复用)来实现。此外，PT-RS信号的配置，是根据振荡器质量、载波频率、OFDM(Orthogonal Frequency Division Multiplexing，正交频分复用技术)子载波间隔、用于信号传输的调度及编码格式来进行的。
其中，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的DMRS端口。
本公开实施例的上行PT-RS的增强方法，通过网络侧设备向UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图5为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图5所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤201，通过下行控制信息DCI向UE发送指示消息。
本公开实施例中，网络侧设备可以通过DCI向UE发送指示消息。
其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的DMRS端口。
本公开实施例中，可以根据网络配置的UE在当前BWP(Bandwidth Part，部分带宽)下支持的上行最大传输层数以及网络配置的UE上行传输对应的PT-RS端口数量确定指示消息。
本公开实施例中，面向多个TRP的PUSCH分别发送对应各自独立的PT-RS参考信号，其中，PT-RS的每个端口都与同一TRP发送方向上的调制参考信号DMRS端口相关联。由此，解决了PT-RS在基于多TRP的传输时，无法针对不同的CPE噪声源与DMRS端口关联的技术问题。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图6为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图6所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤301，响应于网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为一个，则DCI中包括对应一个PT-RS指示域。
本公开实施例中，如果网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为一个，则指示消息包括第一PT-RS指示域，且第一PT-RS指示域包括与多个TRP发送方向发送的PT-RS分别对 应的PT-RS指示信息。即第一PT-RS指示域中各PT-RS指示信息与多个TRP是一一对应的关系。
举例来说，假设向两个TRP发送波束，第一PT-RS指示域可以包括与TRP1发送方向相对应的PT-RS指示信息和与TRP2发送方向相对应的PT-RS指示信息。
其中，PT-RS指示信息用于表示面向对应TRP方向发送的，且指示与对应TRP方向上发送的PTRS使用的的PT-RS端口相关联的DMRS端口。即PT-RS指示信息指示的PT-RS端口与相关联的DMRS端口之间是一一对应的关系。
本公开实施例中，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在所述PT-RS指示信息中，以采用PT-RS指示信息指示的与对应PT-RS端口相关联DMRS端口发送PT-RS。
其中，预定义或预配置与多个TRP发送方向上的每个PT-RS端口各自相关联的DMRS端口组，其中，DMRS端口组中包括用于发送PT-RS的DMRS端口。
举例而言，在上行PT-RS端口数量为一个，面向两个TRP发送波束时，使用最高有效位表示面向TRP1发送的PT-RS与对应的共享该PT-RS端口的DMRS端口相关联，使用最低有效位表示面向TRP2发送的PT-RS与对应的共享该PT-RS端口的DMRS端口相关联。在所有面向TRP1发送的传输时机TO中，采用最高指示位指示的DMRS端口发送PT-RS；在所有面向TRP2发送的TO中，采用最低指示位指示的DMRS端口发送PT-RS。
本公开实施例中，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的与每个PT-RS端口相关联的一组DMRS端口组成的所有端口中，每个PT-RS端口交替映射在与PT-RS端口相关联的不同的DMRS端口上发送PT-RS，并在面向对应TRP发送方向上的不同传输时机TO中，采用与PT-RS端口相关联DMRS端口发送PT-RS。
其中，PT-RS指示信息指示的DMRS端口映射在对应TRP发送方向上的第一个起始传输时机TO上。
举例而言，在所有面向TRP1发送的TO中，PT-RS端口交替映射在共享配置对应的一组DMRS端口上，在最高指示位指示的DMRS端口映射在该波束方向上的第一个起始TO上；在所有面向TRP2发送的TO中，PT-RS端口交替映射在共享配置对应的一组DMRS端口上，在最低指示位指示的DMRS端口映射在该波束方向上的第一个起始TO上。
本公开实施例中，面向不同TRP发送的波束与TO的映射可以使用交替映射或者连续映射方式，PT-RS按照相同的规则对应到不同TO。
本公开实施例的上行PT-RS的增强方法，在网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为一个时，DCI中包括对应一个PT-RS指示域。由此，在向多个TRP发送波束时，DCI中包括的PT-RS指示域包括了与多个TRP一一对应的多个PT-RS指示信息，从而指示了与对应PT-RS端口相关联的DMRS端口，避免了由于信道变化和估计时延导致的相位噪声估计不准确的问题。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图7为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图7所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤401，响应于网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为两个，则不在DCI之中添加指示消息。
本公开实施例中，在网络配置的UE在当前BWP下支持的上行最大传输层数为两层，且上行PT-RS端口数量为两个，则不在DCI之中添加指示消息，网络侧设备直接向UE发送DCI。
可以理解的是，上行PT-RS端口数量为两个，一个PT-RS端口对应一个DMRS端口，因此，无需在DCI之中添加指示消息，也可以确定与PT-RS端口相关联的DMRS端口，以避免由于信道变化和估计时延导致的相位噪声估计不准确的问题。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图8为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图8所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤501，响应于网络配置的上行最大传输层数为一层，则不在DCI之中添加指示消息。
本公开实施例中，在网络配置的UE在当前BWP下支持的上行最大传输层数为一层时，不在DCI之中添加指示消息，网络侧设备直接向UE发送DCI。
可以理解的是，在网络配置的UE在当前BWP下支持单层传输时，有一个PT-RS端口和与PT-RS端口对应的DMRS端口，无需进行区分。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图9为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图9所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤601，响应于网络配置的上行最大传输层数大于两层，则DCI中包括对应两个独立的PT-RS指示域。
本公开实施例中，网络配置的UE在当前BWP下支持的上行最大传输层数大于两层时，网络侧设备通过DCI向UE发送指示消息时，DCI中包括对应两个独立的PT-RS指示域。
在本公开实施例的一种可能的情况下，如果网络配置的UE在当前BWP下支持的上行最大传输层数大于两层，且上行PT-RS端口数量为一个，则指示消息包括多个第二PT-RS指示域，其中，每个第二PT-RS指示域与一个TRP对应，第二PT-RS指示域用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的DMRS端口。
举例而言，在网络配置的UE在当前BWP下支持的上行最大传输层数为3层或4层，向两个TRP发送波束时，网络侧设备向UE发送的指示消息中包括两个第二PT-RS指示域，其中一个第二PT-RS指示域表示面向TRP1发送的，且指示与对应PT-RS端口相关联的DMRS端口，另一个第二PT-RS指示域表示面向TRP2发送的，且指示与对应PT-RS端口相关联的DMRS端口。
本公开实施例中，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在第二PT-RS指示域指示的DMRS端口发送PT-RS，其中，预定义或预配置与多个TRP发送方向上的PT-RS端口相关联的一组DMRS端口，其中，一组DMRS端口中包括用于发送PT-RS的DMRS端口。
举例而言，在同时向TRP1和TRP2发送波束时，在所有面向TRP1发送的TO中，PT-RS端口映射在第一个第二PT-RS指示域指示的DMRS端口上进行发送；在所有面向TRP2发送的TO中，PT-RS端口映射在第二个第二PT-RS指示域指示的DMRS端口上进行发送。
本公开实施例中，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，PT-RS端口交替承载在不同的DMRS端口上，并映射在对应的面向对应TRP发送的不同TO中。
其中，第二PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
举例而言，在同时向TRP1和TRP2发送波束时，在所有面向TRP1发送的TO中，按照交替映射的方式共享配置对应的一组DMRS端口，在第一个第二PT-RS指示域指示的DMRS端口映射在对应TRP1发送方向上的第一个起始TO上；在所有面向TRP2发送的TO中，按照交替映射的方式共享配置对应的一组DMRS端口，在第二个第二PT-RS指示域指示的DMRS端口映射在对应TRP2发送方向 上的第一个起始TO上。
本公开实施例中，如果网络配置的UE在当前BWP下支持的上行最大传输层数大于两层，且上行PT-RS端口数量为两个，则指示消息包括多个第三PT-RS指示域。
其中，每个第三PT-RS指示域与一个TRP对应，第三PT-RS指示域用于表示面向对应TRP发送的，且与两个PT-RS端口相关联的两个DMRS端口。
举例而言，假设向两个TRP发送波束，第一个第三PT-RS指示域表示面向TRP1发送的，与两个PT-RS端口相关联的两个DMRS端口，第二个第三PT-RS指示域表示面向TRP2发送的，与两个PT-RS端口相关联的两个DMRS端口。
本公开实施例中，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在第三PT-RS指示域指示的两个DMRS端口上发送PT-RS，其中，预定义或预配置与多个TRP发送方向上的PT-RS的每个端口相关联的一组DMRS端口。
其中，一组DMRS端口中包括用于发送PT-RS的DMRS端口。
举例而言，假设向两个TRP发送波束，在所有面向TRP1发送的TO中，PT-RS端口映射在第一个第三PT-RS指示域指示的两个DMRS端口上进行发送，在所有面向TRP2发送的TO中，PT-RS端口映射在第二个第三PT-RS指示域指示的两个DMRS端口上进行发送。
本公开实施例中，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，PT-RS端口依次交替映射在不同的DMRS端口上，并映射在对应的面向对应TRP发送的不同TO中。
其中，第三PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
举例而言，假设向两个TRP发送波束，在所有面向TRP1发送的TO中，每个端口分别在对应的共享DMRS端口组中交替映射，得到PT-RS映射在共享配置对应的一组DMRS端口上，其中，在第一个第三PT-RS指示域指示的两个DMRS端口映射在TRP发送方向上的第一个起始TO上；在所有面向TRP2发送的TO中，每个端口分别在对应的共享DMRS端口组中交替映射，得到PT-RS映射在共享配置对应的一组DMRS端口上，其中，在第二个第三PT-RS指示域指示的DMRS端口映射在TRP发送方向上的第一个起始TO上。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
本公开实施例提供了另一种上行PT-RS的增强方法，图10为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于网络侧设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图10所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤701，接收UE上报支持的交替映射DMRS端口数目，且由网络配置的DMRS端口数目。
其中，UE配置的交替映射DMRS端口数目在不同的TRP发送方向对应的TO中映射PT-RS。
本公开实施例中，UE可以按照实际需求配置交替映射传输波束时DMRS端口数目，进而，将端口数目上报至网络侧设备，以使得网络侧设备接收UE上报支持的交替映射DMRS端口数目。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
为了实现上述实施例，本公开还提出另一种上行PT-RS的增强方法，图11为本公开实施例提供的另一种上行PT-RS的增强方法的流程示意图。该上行PT-RS的增强方法可以应用于用户设备中。该上行PT-RS的增强方法可以单独被执行，也可以结合本公开中的任一个实施例或是实施例中的可能的实现方式一起被执行，还可以结合相关技术中的任一种技术方案一起被执行。
如图11所示，该上行PT-RS的增强方法可以包括以下步骤：
步骤801，接收网络侧设备发送的指示消息。
其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指 示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
作为本公开实施例的一种可能的情况，UE可以接收网络侧设备通过DCI发送的指示消息。
需要说明的是，前述图4至图10任一实施例中对网络侧设备执行的上行PT-RS的增强方法的解释说明，也适用于该实施例中对用户设备执行的上行PT-RS的增强方法，其实现原理类似，此处不做赘述。
本公开实施例的上行PT-RS的增强方法，通过UE接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
与上述图4至图10实施例提供的上行PT-RS的增强方法相对应，本公开还提供一种上行PT-RS的增强装置，由于本公开实施例提供的上行PT-RS的增强装置与上述图4至图10实施例提供的上行PT-RS的增强方法相对应，因此在上行PT-RS的增强方法的实施方式也适用于本公开实施例提供的上行PT-RS的增强装置，在本公开实施例中不再详细描述。
图12为本公开实施例提供的一种上行PT-RS的增强装置的结构示意图。该装置可以应用于网络侧设备中。
如图12所示，该上行PT-RS的增强装置1200，可以包括：发送模块1201。
发送模块1201，用于向用户设备UE发送指示消息，其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
可选地，发送模块1201，还可以用于通过下行控制信息DCI向UE发送指示消息。
可选地，根据网络配置的UE在当前部分带宽BWP下支持的上行最大传输层数以及网络配置的UE上行传输对应的PT-RS端口数量确定指示消息。
可选地，响应于网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为一个，则DCI中包括对应一个PT-RS指示域；
响应于网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为两个，则不在DCI之中添加指示消息；
响应于网络配置的上行最大传输层数为一层，则不在DCI之中添加指示消息；
响应于网络配置的上行最大传输层数大于两层，则DCI中包括对应两个独立的PT-RS指示域。
可选地，面向多个TRP分别发送对应各自独立的PT-RS参考信号，其中，PT-RS的每个端口都与同一TRP发送方向上的调制参考信号DMRS端口相关联。可选地，响应于网络配置的上行最大传输层数为两层，且上行PT-RS端口数量为一个，则指示消息包括第一PT-RS指示域，且第一PT-RS指示域包括与多个TRP发送方向发送的PT-RS一一对应的PT-RS指示信息。
可选地，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在PT-RS指示信息中，以采用所述PT-RS指示信息指示的DMRS端口发送所述PT-RS，其中，预配置与多个TRP发送方向上的每个PT-RS端口相关联的一组DMRS端口，其中，一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的与每个PT-RS端口相关联的一组DMRS端口组成的所有端口中，每个PT-RS端口依次交替映射在与PT-RS端口相关联的不同的DMRS端口上发送PT-RS，并在面向对应TRP发送方向上的不同传输时机TO中，采用与PT-RS端口相关联DMRS端口进行发送，其中，PT-RS指示信息指示的DMRS端口映射在对应TRP发送方向上的第一个起始传输时机TO上。
可选地，响应于网络配置的上行最大传输层数大于两层，且上行PT-RS端口数量为一个，则指示消息包括多个第二PT-RS指示域，其中，每个第二PT-RS指示域与一个TRP对应，第二PT-RS指示域用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的DMRS端口。
可选地，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在第二PT-RS指示域指示的DMRS端口发送所述PT-RS，其中，预配置与多个TRP发送方向上的PT-RS端口相关联的一组DMRS端口，其中，一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，PT-RS端口依次交替承载在不同的DMRS端口上发送PT-RS，并映射在对应的面向对应TRP发送的不同TO中，其中，第二PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
可选地，响应于网络配置的上行最大传输层数大于两层，且上行PT-RS端口数量为两个，则指示消息包括多个第三PT-RS指示域，其中，每个第三PT-RS指示域与一个TRP对应，第三PT-RS指示域用于表示面向对应TRP发送的，且与两个PT-RS端口相关联的两个DMRS端口。
可选地，在面向多个TRP发送的所有传输时机TO中，将PT-RS端口映射在第三PT-RS指示域指示的两个DMRS端口发送所述PT-RS，其中，预预配置与多个TRP发送方向上的PT-RS的每个端口相关联的一组DMRS端口，其中，一组DMRS端口中包括用于发送PT-RS的DMRS端口。
可选地，当UE上报支持PT-RS交替映射方式且网络配置UE按照交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，PT-RS端口依次交替映射在不同的DMRS端口上发送PT-RS，并映射在对应的面向对应TRP发送的不同TO中，其中，第三PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
可选地，该上行PT-RS的增强装置1200，还可以包括：接收模块，用于接收UE上报支持的交替映射DMRS端口数目，且由网络配置的DMRS端口数目，其中，UE配置的交替映射DMRS端口数目在不同的TRP发送方向对应的TO中映射PT-RS端口。
本公开实施例的上行PT-RS的增强装置，通过网络侧设备向UE发送指示消息，其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
与上述图11实施例提供的上行PT-RS的增强方法相对应，本公开还提供一种上行PT-RS的增强装置，由于本公开实施例提供的上行PT-RS的增强装置与上述图11实施例提供的上行PT-RS的增强方法相对应，因此在上行PT-RS的增强方法的实施方式也适用于本公开实施例提供的上行PT-RS的增强装置，在本公开实施例中不再详细描述。
图13为本公开实施例提供的另一种上行PT-RS的增强装置的结构示意图。该装置可以应用于用户设备中。
如图13所示，该上行PT-RS的增强装置1300，可以包括：接收模块1301，用于接收网络侧设备发送的指示消息，其中，指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
可选地，接收模块1301，还可以用于接收网络侧设备通过下行控制信息DCI发送的指示消息。
本公开实施例的上行PT-RS的增强装置，通过UE接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。由于向 UE发送的指示消息中包括了面向对应TRP发送的多个PT-RS指示信息，且各PT-RS指示信息指示与对应PT-RS端口相关联的DMRS端口，解决了PT-RS在基于多TRP传输时无法针对不同的CPE噪声源与DMRS端口关联的问题，有利于提高系统性能。
需要说明的是，上述的这些可能的实现方式可以单独被执行，也可以结合在一起被执行，本公开实施例并不对此作出限定。
为了实现上述实施例，本公开还提出一种通信设备。
本公开实施例提供的通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有处理器运行的可执行程序，其中，处理器运行可执行程序时执行前述方法。
该通信设备可为前述的终端设备、接入网设备或核心网设备。
其中，处理器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。这里，所述通信设备包括终端设备、接入网设备或核心网设备。
所述处理器可以通过总线等与存储器连接，用于读取存储器上存储的可执行程序，例如，如图4至图11的至少其中之一。
为了实现上述实施例，本公开还提出一种计算机存储介质。
本公开实施例提供的计算机存储介质，存储有可执行程序；所述可执行程序被处理器执行后，能够实现前述方法，例如，如图4至图11的至少其中之一。
图14为本公开实施例所提供的一种用户设备的框图。例如，用户设备1400可以是移动电话，计算机，数字广播用户设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图14，用户设备1400可以包括以下至少一个组件：处理组件1402，存储器1404，电源组件1406，多媒体组件1408，音频组件1410，输入/输出(I/O)的接口1412，传感器组件1414，以及通信组件1416。
处理组件1402通常控制用户设备1400的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1402可以包括至少一个处理器1420来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件1402可以包括至少一个模块，便于处理组件1402和其他组件之间的交互。例如，处理组件1402可以包括多媒体模块，以方便多媒体组件1408和处理组件1402之间的交互。
存储器1404被配置为存储各种类型的数据以支持在终端设备1400的操作。这些数据的示例包括用于在终端设备1400上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1404可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1406为用户设备1400的各种组件提供电力。电源组件1406可以包括电源管理系统，至少一个电源，及其他与为用户设备1400生成、管理和分配电力相关联的组件。
多媒体组件1408包括在所述用户设备1400和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括至少一个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的唤醒时间和压力。在一些实施例中，多媒体组件1408包括一个前置摄像头和/或后置摄像头。当用户设备1400处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1410被配置为输出和/或输入音频信号。例如，音频组件1410包括一个麦克风(MIC)，当用户设备1400处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1404或经由通信组件1416发送。在一些实施例中，音频组件1410还包括一个扬声器，用于输出音频信号。
I/O接口1412为处理组件1402和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1414包括至少一个传感器，用于为用户设备1400提供各个方面的状态评估。例如，传感器组件1414可以检测到终端设备1400的打开/关闭状态，组件的相对定位，例如所述组件为用户设备1400的显示器和小键盘，传感器组件1414还可以检测用户设备1400或用户设备1400一个组件的位置改变，用户与用户设备1400接触的存在或不存在，用户设备1400方位或加速/减速和用户设备1400的温度变化。传感器组件1414可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1414还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1414还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1416被配置为便于用户设备1400和其他设备之间有线或无线方式的通信。用户设备1400可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件1416经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1416还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，用户设备1400可以被至少一个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述图11实施例的上行PT-RS的增强方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1404，上述指令可由用户设备1400的处理器1420执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
如图15所示，为本公开实施例所提供的一种网络侧设备的结构示意图。其中，该网络侧设备可以为上述实施例中的接入网设备或核心网设备。参照图15，网络侧设备1500包括处理组件1522，其进一步包括至少一个处理器，以及由存储器1532所代表的存储器资源，用于存储可由处理组件1522的执行的指令，例如应用程序。存储器1532中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1522被配置为执行指令，以执行上述方法前述应用在所述接入网设备或核心网设备的任意方法，例如，如图4至10任一实施例所示的上行PT-RS的增强方法。
网络侧设备1500还可以包括一个电源组件1526被配置为执行网络侧设备1500的电源管理，一个有线或无线网络接口1550被配置为将网络侧设备1500连接到网络，和一个输入输出(I/O)接口1558。网络侧设备1500可以操作基于存储在存储器1532的操作系统，例如Windows Server TM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM或类似。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (21)

  1. 一种上行相位跟踪参考信号PT-RS的增强方法，其特征在于，应用于网络侧设备，所述方法包括：
    向用户设备UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
  2. 如权利要求1所述的方法，其特征在于，所述向用户设备UE发送指示消息，包括：
    通过下行控制信息DCI向所述UE发送所述指示消息。
  3. 如权利要求2所述的方法，其特征在于，根据网络配置的所述UE在当前部分带宽BWP下支持的上行最大传输层数以及所述网络配置的UE上行传输对应的PT-RS端口数量确定所述指示消息。
  4. 如权利要求3所述的方法，其特征在于，
    响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为一个，则所述DCI中包括对应一个PT-RS指示域；
    响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为两个，则不在所述DCI之中添加所述指示消息；
    响应于所述网络配置的上行最大传输层数为一层，则不在所述DCI之中添加所述指示消息；
    响应于所述网络配置的上行最大传输层数大于两层，则所述DCI中包括对应两个独立的PT-RS指示域。
  5. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    面向所述多个TRP分别发送对应各自独立的PT-RS参考信号，其中，所述PT-RS的每个端口都与同一TRP发送方向上的调制参考信号DMRS端口相关联。
  6. 如权利要求4所述的方法，其特征在于，响应于所述网络配置的上行最大传输层数为两层，且所述上行PT-RS端口数量为一个，则所述指示消息包括第一PT-RS指示域，且所述第一PT-RS指示域包括与多个TRP发送方向发送的PT-RS分别对应的PT-RS指示信息。
  7. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述PT-RS指示信息中，以采用所述PT-RS指示信息指示的DMRS端口发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的每个PT-RS端口相关联的一组DMRS端口，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
  8. 如权利要求6所述的方法，其特征在于，所述方法还包括：
    当UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的与每个PT-RS端口相关联的一组DMRS端口组成的所有端口中，每个PT-RS端口交替映射在与所述PT-RS端口相关联的不同的DMRS端口上发送所述PT-RS，并在面向对应TRP发送方向上的不同传输时机TO中，采用与所述PT-RS端口相关联DMRS端口进行发送，其中，所述PT-RS指示信息指示的DMRS端口映射在对应TRP发送方向上的第一个起始传输时机TO上。
  9. 如权利要求4所述的方法，其特征在于，响应于所述网络配置的上行最大传输层数大于两层， 且所述上行PT-RS端口数量为一个，则所述指示消息包括多个第二PT-RS指示域，其中，每个所述第二PT-RS指示域与一个所述TRP对应，所述第二PT-RS指示域用于表示面向对应TRP发送的，且指示与对应所述PT-RS端口相关联的DMRS端口。
  10. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述第二PT-RS指示域指示的DMRS端口发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的所述PT-RS端口相关联的一组DMRS端口，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
  11. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    当所述UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，所述PT-RS端口依次交替承载在不同的DMRS端口上发送所述PT-RS，并映射在对应的面向对应TRP发送的不同TO中，其中，所述第二PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
  12. 如权利要求4所述的方法，其特征在于，响应于所述网络配置的上行最大传输层数大于两层，且所述上行PT-RS端口数量为所述两个，则所述指示消息包括多个第三PT-RS指示域，其中，每个所述第三PT-RS指示域与一个所述TRP对应，所述第三PT-RS指示域用于表示面向对应TRP发送的，且与两个所述PT-RS端口相关联的两个DMRS端口。
  13. 如权利要求12所述的方法，其特征在于，还包括：
    在面向多个TRP发送的所有传输时机TO中，将所述PT-RS端口映射在所述第三PT-RS指示域指示的两个DMRS端口发送所述PT-RS，其中，预配置与多个所述TRP发送方向上的所述PT-RS的每个端口相关联的一组DMRS端口，其中，所述一组DMRS端口中包括用于发送PT-RS的DMRS端口。
  14. 如权利要求12所述的方法，其特征在于，所述方法还包括：
    当所述UE上报支持PT-RS交替映射方式且网络配置所述UE按照所述交替映射方式进行映射时，在网络配置的一组关联DMRS端口对应的所有端口中，所述PT-RS端口依次交替映射在不同的DMRS端口上发送所述PT-RS，并映射在对应的面向对应TRP发送的不同TO中，其中，所述第三PT-RS指示域指示的DMRS端口映射在对应TRP发送方向上的第一个起始TO上。
  15. 如权利要求4-14任一项所述的方法，其特征在于，所述方法还包括：
    接收所述UE上报支持的交替映射DMRS端口数目，且由网络配置的DMRS端口数目，其中，所述UE配置的交替映射DMRS端口数目在不同的TRP发送方向对应的TO中映射所述PT-RS端口。
  16. 一种上行相位跟踪参考信号PT-RS的增强方法，其特征在于，应用于用户设备，所述方法包括：
    接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
  17. 如权利要求16所述的方法，其特征在于，所述接收网络侧设备发送的指示消息，包括：
    接收所述网络侧设备通过下行控制信息DCI发送的所述指示消息。
  18. 一种上行相位跟踪参考信号PT-RS的增强装置，其特征在于，应用于网络侧设备，包括：
    发送模块，用于向用户设备UE发送指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
  19. 一种上行相位跟踪参考信号PT-RS的增强装置，其特征在于，应用于用户设备，包括：
    接收模块，用于接收网络侧设备发送的指示消息，其中，所述指示消息包括用于指示多个发送与接收点TRP分别对应的多个PT-RS指示信息，所述PT-RS指示信息用于表示面向对应TRP发送的，且指示与对应PT-RS端口相关联的解调参考信号DMRS端口。
  20. 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至15或16至17任一项所述的上行相位跟踪参考信号PT-RS的增强方法。
  21. 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至15或16至17任一项所述上行相位跟踪参考信号PT-RS的增强方法。
PCT/CN2021/084930 2021-04-01 2021-04-01 上行相位跟踪参考信号pt-rs的增强方法、装置及通信设备 WO2022205306A1 (zh)

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LG ELECTRONICS: "Text proposals on enhancements on multi-TRP/panel transmission", 3GPP DRAFT; R1-2001913, vol. RAN WG1, 9 April 2020 (2020-04-09), pages 1 - 15, XP051870448 *
MODERATOR (OPPO): "FL summary for Multi-TRP/Panel Transmission", 3GPP DRAFT; R1-2002406, vol. RAN WG1, 14 April 2020 (2020-04-14), pages 1 - 34, XP051876363 *

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