WO2023125420A1 - 参考信号端口指示方法、终端及网络侧设备 - Google Patents

参考信号端口指示方法、终端及网络侧设备 Download PDF

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Publication number
WO2023125420A1
WO2023125420A1 PCT/CN2022/141964 CN2022141964W WO2023125420A1 WO 2023125420 A1 WO2023125420 A1 WO 2023125420A1 CN 2022141964 W CN2022141964 W CN 2022141964W WO 2023125420 A1 WO2023125420 A1 WO 2023125420A1
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WIPO (PCT)
Prior art keywords
dmrs
port
indication field
target
indication
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PCT/CN2022/141964
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English (en)
French (fr)
Inventor
孙荣荣
孙鹏
塔玛拉卡拉盖施
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维沃移动通信有限公司
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Publication of WO2023125420A1 publication Critical patent/WO2023125420A1/zh

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    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present application belongs to the technical field of wireless communication, and in particular relates to a method for indicating a reference signal port, a terminal and a network side device.
  • the network side device can indicate to the terminal the demodulation reference signal (Demodulation Reference Signal, DMRS) port used to send the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) through the downlink control information (Downlink Control Information, DCI).
  • DMRS Demodulation Reference Signal
  • PUSCH Physical Uplink Shared Channel
  • DCI Downlink Control Information
  • the network side device only indicates a group of DMRS ports in the DCI, and different DMRS ports in the group of DMRRS may occupy the same time-frequency resource.
  • Multi Transmission Reception Point MTRP
  • TRP Transmission Reception Point
  • the embodiments of the present application provide a reference signal port indication method, a terminal and a network side device, which can solve the problem that only a group of DMRS ports are indicated in DCI, which may cause performance degradation of uplink data transmission in an MTRP scenario.
  • a method for indicating a reference signal port including:
  • the terminal receives target signaling, where the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel;
  • the terminal determines at least two DMRS port groups according to the antenna port indication field, or determines an uplink transmission mode of the terminal.
  • a method for indicating a reference signal port including:
  • the network side device sends target signaling, the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate the DMRS port of the uplink channel, so that the terminal determines at least two DMRS port groups, or determine the uplink transmission mode of the terminal.
  • a device for indicating a reference signal port including:
  • a receiving module configured to receive target signaling, where the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel;
  • a determining module configured to determine at least two DMRS port groups according to the antenna port indication field, or determine an uplink transmission mode of the terminal.
  • a device for indicating a reference signal port including:
  • a sending module configured to send target signaling, where the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel, so that the terminal determines at least two DMRS port groups, or determine the uplink transmission mode of the terminal.
  • a terminal in a fifth aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the following The steps of the method in one aspect.
  • a terminal including a processor and a communication interface, wherein the communication interface is used to receive target signaling, and the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate A DMRS port of an uplink channel; the processor is configured to determine at least two DMRS port groups according to the antenna port indication field, or determine an uplink transmission mode of the terminal.
  • a network-side device in a seventh aspect, includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When realizing the steps of the method as described in the second aspect.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to send target signaling, and the target signaling includes an antenna port indication field, and the antenna port indication field is used for Indicates the DMRS port of the uplink channel, so that the terminal determines at least two DMRS port groups according to the antenna port indication field, or determines the uplink transmission mode of the terminal.
  • a ninth aspect provides a system for indicating a reference signal port, including: a terminal and a network-side device, the terminal can be used to perform the steps of the method for indicating a reference signal port as described in the first aspect, and the network-side device can be used to Execute the steps of the reference signal port indication method described in the second aspect.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method as described in the first aspect are implemented, or the The steps of the method described in the second aspect.
  • a chip in an eleventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the method described in the first aspect. method, or implement the method as described in the second aspect.
  • a computer program product is provided, the computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the method as described in the first aspect or the second aspect A step of.
  • the terminal can determine at least two DMRS port groups according to the DMRS port indicated by the antenna port indication field for the uplink channel, or determine the uplink transmission mode of the terminal, since at least two DMRS ports are determined Therefore, in the MTRP scenario, PUSCHs sent by different beams can use corresponding DMRS ports in different DMRS port groups.
  • DMRS ports in different DMRS port groups use different time-frequency resources, mutual interference can be reduced and improved The transmission performance of the number of uplinks.
  • FIG. 1 is a block diagram of a wireless communication system applicable to an embodiment of the present application
  • Figure 2 is a schematic diagram of the MTRP PUSCH transmission scenario
  • FIG. 3 is a schematic structural diagram of a TPMI or SRI indication domain
  • Figure 4A and 4B are the schematic diagrams of DMRS CDM group
  • FIG. 5 is a schematic flowchart of a method for indicating a reference signal port according to an embodiment of the present application
  • FIG. 6 is a schematic flowchart of a method for indicating a reference signal port according to another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a reference signal port indicating device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a reference signal port indicating device according to another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a hardware structure of a network side device according to an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • NR New Radio
  • the following description describes the New Radio (NR) system for illustrative purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, a super mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device) , Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal side devices, wearable devices include: smart watches, smart bracelet
  • the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a wireless access network unit.
  • RAN Radio Access Network
  • the access network device may include a base station, a wireless local area network (Wireless Local Area Networks, WLAN) access point or a WiFi node, etc., and the base station may be called a node B, an evolved node B (eNB), an access point, a base transceiver station ( Base Transceiver Station, BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), Home Node B, Home Evolved Node B, sending and receiving point ( Transmission Reception Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of this application, only the NR system The base station is introduced as an example, and the specific type of the base station is not limited.
  • MTRP PUSCH can introduce Space Division Multiplexing (SDM) enhancements, that is, part of the spatial data stream is sent to one TRP, and the other part of the spatial data stream The data flow is sent to another TRP.
  • SDM Space Division Multiplexing
  • sending to two TRPs can be described as using two beams to send two parts of data streams.
  • different ranks sent to two TRPs can use a unified Transmitted Precoding Matrix Indicator (TPMI)/Sounding Reference Signal Resource Indicator (SRI) for channel sounding
  • TPMI Transmitted Precoding Matrix Indicator
  • SRI Reference Signal Resource Indicator
  • the precoding may be performed by using two independent TPMI/SRIs to perform precoding respectively.
  • the network side configures a user equipment (User Equipment, UE) with a channel sounding reference signal (Sounding Reference Signal, SRS) resource set for codebook-based transmission, and each resource set includes at least one SRS resource.
  • the UE sends SRS according to at least one configured SRS resource, and the network side obtains the uplink channel by receiving the SRS, and based on this, determines the beam, precoding matrix, modulation and coding scheme (Modulation and coding scheme, MCS), etc., and notify the UE through DCI.
  • SRS channel sounding reference signal
  • the UE receives the DCI for scheduling the PUSCH, and the TPMI field in the DCI selects a precoding matrix for the scheduled PUSCH transmission from a predefined codebook, as shown in Table 1.
  • the UE will precode the uplink data according to the indicated TPMI and map it to the PUSCH resource for transmission.
  • the network side configures an SRS resource set based on non-codebook transmission for the UE, and each resource set includes at least one SRS resource.
  • the UE detects the NZP CSI-RS sent by the network side on the non-zero-power (Non-Zero-Power, NZP) channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resource configured by the network side to obtain the downlink Channel state information.
  • the downlink channel information may be approximately equivalent to uplink channel information.
  • the UE calculates the candidate precoding matrix for uplink transmission according to the uplink channel information, uses the precoding matrix to precode and send the SRS; the network side further determines the precoding matrix used for PUSCH transmission according to the measured precoded SRS The coding matrix is notified to the UE by scheduling the DCI of the PUSCH.
  • the SRI (SRS resource indicator, SRS resource indication) field of the DCI selects a subset of the SRS resource index, that is, the SRI group, from a predefined SRI index table to notify the UE of the precoding used for the precoding of the PUSCH
  • the matrix indicates an example in the following table, where N SRS represents the number of SRS resources in the SRS resource set.
  • the DCI for scheduling the PUSCH includes two SRI fields, and the two TPMI fields are respectively used to indicate two sets of parameters, and are used for PUSCH transmission at the same time.
  • the two SRI fields correspond to indicate the SRS resources in the two SRS resource sets, and each SRS resource corresponds to one beam, so that the PUSCH can be sent using two beams at the same time, improving the reliability of data transmission.
  • a target field is introduced into the DCI, which is used to indicate which of the two current TRPs or which two TRPs are used as the target TRP for PUSCH transmission, as shown in FIG. 3 .
  • the target domain is "01"
  • the first SRI domain corresponds to the second SRS resource set (SRS resource set2, namely Both repetitions send TRP2.
  • the first SRI domain and the first TPMI domain correspond to the first SRS resource set (SRS resource set1)
  • the second SRI domain and the second The TPMI domain corresponds to the second SRS resource set (SRS resource set2), that is, the first repetition uses the first beam to send TRP1, and the second repetition uses the second beam to send TRP2.
  • CDM Code Domain Multiplexing
  • FIG. 4A and FIG. 4B Please refer to FIG. 4A and FIG. 4B. It can be seen from FIG. 4A and FIG. 4B that the DMRS ports belonging to the same DMRS CDM group occupy the same time-frequency resources.
  • the embodiment of the present application provides a method for indicating a reference signal port, including:
  • Step 51 The terminal receives target signaling, the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate the DMRS port of the uplink channel;
  • the target signaling may be DCI signaling.
  • the uplink channel may be, for example, PUSCH.
  • Step 52 The terminal determines at least two DMRS port groups according to the antenna port indication field, or determines an uplink transmission mode of the terminal.
  • each DMRS port group includes at least one DMRS port.
  • the at least two DMRS port groups may be different DMRS port groups, or may be completely the same DMRS port group.
  • the terminal can determine at least two DMRS port groups according to the DMRS port indicated by the antenna port indication field for the uplink channel, or determine the uplink transmission mode of the terminal, since at least two DMRS ports are determined Therefore, in the MTRP scenario, PUSCHs sent by different beams can use corresponding DMRS ports in different DMRS port groups.
  • DMRS ports in different DMRS port groups use different time-frequency resources, mutual interference can be reduced and improved The transmission performance of the number of uplinks.
  • the target signaling includes an antenna port indication field and one or more first indication fields, and the antenna port indication field is used to indicate multiple DMRS ports;
  • the terminal determines at least two DMRS port groups according to the antenna port indication field, including: the terminal determines at least two DMRS port groups according to the target rank and the antenna port indication field; wherein, the The target rank is determined according to the rank indicated by the first indication field. That is, the antenna port indication field is interpreted according to the target rank.
  • the above-mentioned first indication field may be a precoding information and number of layers (Precoding information and number of layers, TPMI) or an SRS resource indicator (SRS resource indicator, SRI) indication field, or it may be Other indication fields are used to specifically indicate the rank of the uplink channel.
  • Precoding information and number of layers TPMI
  • SRS resource indicator SRI
  • Other indication fields are used to specifically indicate the rank of the uplink channel.
  • the target signaling may include a first indication field, and the target rank is equal to the rank indicated by the first indication field multiplied by a multiple. For example, if two DMRS port groups are determined, the target rank is equal to the first Indicates the rank indicated by the field multiplied by 2.
  • the target signaling may include multiple first indication fields, optionally:
  • the target rank is the sum of the ranks indicated by the multiple first indication fields
  • the target rank is the sum of ranks indicated by the two TPMI indication fields, and the rank here may also be described as a layer.
  • the target rank is the sum of the ranks indicated by the two SRI indication fields, that is, the SRS group indicated by the two SRI fields The total number of SRS in .
  • the sum of ranks indicated by the multiple first indication fields does not exceed a maximum rank limit.
  • the maximum rank limit is configured by the network side device through RRC signaling or indicated by MAC CE.
  • DMRS ports belonging to different DMRS port groups are from different DMRS CDM groups.
  • the DMRS ports in the same DMRS port group are from the same DMRS CDM group.
  • the above-mentioned first indication field is a valid indication field. That is, the target rank is interpreted using the effective first indicator field.
  • the target rank is the larger one among the ranks indicated by the multiple first indication fields
  • the first Y ports among the multiple DMRS ports indicated by the antenna port indication field are the DMRS ports corresponding to the target first indication field, and the target first indication field is the Indicates the rank of the smaller first indicating field.
  • the above-mentioned first indication field is a valid indication field. That is, the target rank is interpreted by using the effective first indication field.
  • the target rank is the rank indicated by the first first indication field in the plurality of first indication fields.
  • the above-mentioned first indication field is a valid indication field. That is, the target rank is interpreted by using the effective first indication domain.
  • the terminal determines at least two DMRS port groups according to the target rank and the antenna port indicator field, including: the terminal determines the antenna port group according to the target rank
  • the multiple DMRS ports indicated by the port indication field are divided into at least two DMRS port groups.
  • the terminal divides the multiple DMRS ports indicated by the antenna port indication field into at least two DMRS port groups, including:
  • the terminal divides the plurality of DMRS ports into at least two DMRS port groups according to the size of the DMRS port index, wherein the port index of the DMRS port in the previous DMRS port group is smaller than that of the DMRS port in the subsequent DMRS port group.
  • the port index of the port for example: the terminal divides the plurality of DMRS ports into two DMRS port groups according to the size of the DMRS port index, wherein the port index of the DMRS port in the first DMRS port group is smaller than that of the second The port index of the DMRS port in the DMRS port group.
  • the terminal divides the multiple DMRS ports into at least two DMRS port groups according to the arrangement positions of the multiple DMRS ports; Arranged by size.
  • the terminal divides the multiple DMRS ports into at least two DMRS port groups according to the multiple DMRS ports and the DMRS CDM groups to which the multiple DMRS ports belong respectively, wherein the DMRS ports belonging to the same DMRS CDM group
  • the port is a DMRS port group.
  • each DMRS port group corresponds to a first indication field
  • Each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the first indication fields corresponding to different DMRS port groups are different.
  • the target signaling further includes a first target indication field, and the first target indication field is used to indicate the first indication field corresponding to the rank indication parameter.
  • the rank indication parameter may be TMPI or SRI.
  • ranks indicated by each of the first indication fields are the same. For example, when the first target indication field takes the first value, the first rank indication parameter is indicated by the first first indication field, and the second rank indication parameter is indicated by the second first indication field; when the first target When the indication field takes the second value, the first rank indication parameter is indicated by the second first indication field, and the second rank indication parameter is indicated by the first first indication field.
  • each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the second relationship corresponds to a rank indication parameter indicated by a first indication field Corresponding
  • the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication field in the plurality of first indication fields, and the target first indication field The rank indicated by the field is equal to the number of DMRS ports in the target DMRS port group.
  • the above relationship (the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication domain in the multiple first indication domains) is used when the following conditions are met: the multiple The ranks indicated by the first indication field are different.
  • the target signaling includes two first indication fields, and the terminal determines two DMRS port groups according to the antenna port indication fields, where,
  • the first DMRS port group corresponds to the first first indicator domain
  • the second DMRS port group corresponds to the second first indicator domain
  • the first DMRS port group corresponds to the first TMPI indicator domain
  • the second DMRS port group corresponds to the first TMPI indicator domain
  • the two DMRS port groups correspond to the second TMPI indication domain; or, the first DMRS port group corresponds to the first SRI indication domain, and the second DMRS port group corresponds to the second SRI indication domain;
  • the first DMRS port group corresponds to the first rank indication parameter
  • the second DMRS port group corresponds to the second rank indication parameter
  • the first rank indication parameter consists of the first first indication field and the second second rank indication parameter
  • One of the indication fields is indicated
  • the second rank indication parameter is indicated by the other of the first first indication field and the second first indication field.
  • the rank indication parameter may be TMPI or SRI.
  • the first DMRS port group corresponds to the first TMPI
  • the second DMRS port group corresponds to the second TMPI, wherein the first TMPI is indicated by the first TMPI domain and the second TMPI domain where One indication, the second TMPI is indicated by the other of the first TMPI indication field and the second TMPI indication field.
  • the first DMRS port group corresponds to the first SRI
  • the second DMRS port group corresponds to the second SRI
  • the first SRI is indicated by the first SRI and the second SRI indicating the fields in which One indication
  • the second SRI is indicated by the other of the first SRI indication field and the second SRI indication field.
  • corresponding means that the number of DMRS ports in the DMRS port group is determined by the rank indicated by the corresponding first indication field or rank indication parameter.
  • the target signaling includes an antenna port indication field and at least two first indication fields, the antenna port indication field is used to indicate at least two DMRS port groups, and each of the DMRS port groups includes at least one DMRS port.
  • the antenna port indication field uses a code point to indicate the at least two DMRS port groups.
  • the target signaling further includes one or more first indication fields, and the antenna port indication field uses one code point to indicate two DMRS port groups, and the second DMRS port group is controlled by the second The rank interpretation indicated by the first indication field.
  • DMRS ports belonging to different DMRS port groups come from different DMRS CDM groups.
  • each DMRS port group corresponds to a first indication field
  • Each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the first indication fields corresponding to different DMRS port groups are different.
  • the target signaling further includes a first target indication field, and the first target indication field is used to indicate a first indication field corresponding to the rank indication parameter.
  • the rank indication parameter may be TMPI or SRI.
  • ranks indicated by each of the first indication fields are the same. For example, when the first target indication field takes the first value, the first rank indication parameter is indicated by the first first indication field, and the second rank indication parameter is indicated by the second first indication field; when the first target When the indication field takes the second value, the first rank indication parameter is indicated by the second first indication field, and the second rank indication parameter is indicated by the first first indication field.
  • each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the second relationship corresponds to a rank indication parameter indicated by a first indication field Corresponding
  • the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication field in the plurality of first indication fields, and the target first indication field The rank indicated by the field is equal to the number of DMRS ports in the target DMRS port group.
  • the above relationship (the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication domain in the multiple first indication domains) is used when the following conditions are met: the multiple The ranks indicated by the first indication field are different.
  • the terminal determining at least two DMRS port groups according to the antenna port indication field includes: the terminal determining at least two DMRS port groups according to the antenna indication field and the DMRS combination table, and the DMRS port combination table It includes a first DMRS port combination table or a second DMRS port combination table, the first DMRS port combination table includes the first DMRS port set, and the second DMRS port combination table does not include the first DMRS port set.
  • the terminal determines at least two DMRS port groups according to the first DMRS port combination table, including:
  • the terminal determines at least two DMRS port groups according to the first DMRS port combination table
  • the terminal determines at least two DMRS port groups according to the second DMRS port combination table.
  • the first DMRS port set may include at least one of the following: ⁇ 0, 2, 3 ⁇ ;
  • the first DMRS port set may include at least one of the following: ⁇ 0, 2, 3, 6 ⁇ , ⁇ 0, 1, 4, 2 ⁇ ;
  • the first DMRS port set may include at least one of the following: ⁇ 0, 1, 2, 4 ⁇ , ⁇ 0, 2, 3, 4 ⁇ ;
  • the first DMRS port set may include at least one of the following: ⁇ 0, 2, 3, 8 ⁇ , ⁇ 0, 4, 5, 10 ⁇ , ⁇ 0, 1, 6, 2 ⁇ , ⁇ 0 , 1, 6, 4 ⁇ , ⁇ 2, 3, 8, 4 ⁇ , ⁇ 2, 4, 5, 10 ⁇ .
  • the above method can ensure that there is a combination with a target rank of 1+2/1+3/3+1, so as to ensure that different numbers of data streams are sent using two beams respectively.
  • the above scheme 1 and scheme 3 can also be used in combination, that is, firstly, according to the target rank and the first target indicator field, the DMRS port combination table to be used is determined, and then, according to scheme 1, the terminal rank, dividing the multiple DMRS ports indicated by the antenna port indication field in the DMRS port combination table into at least two DMRS port groups.
  • the target signaling includes multiple antenna port indication fields, and each antenna port indication field is used to indicate one DMRS port group.
  • the DMRS ports in the DMRS port groups indicated by different antenna port indication fields correspond to different DMRS CDM groups.
  • the target signaling includes two antenna port indication fields, the target signaling further includes two first indication fields, and the second antenna port indication field is associated with the second first indicates the domain.
  • the target signaling further includes one or more first indication fields, the target signaling includes two antenna port indication fields, and the second antenna port indication field is based on the target first The target rank indication parameter indicated by the indication field is determined.
  • the target signaling further includes a first target indication field, and the target rank indication parameter is determined by the first target indication field.
  • the rank indication parameter may be TPMI or SRI.
  • the target TPMI or SRI is indicated by the first TPMI or SRI indicator field
  • the target TPMI or SRI is indicated by the second TPMI or SRI instructions.
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate one DMRS port group; the terminal obtains other DMRS port groups implicitly according to the DMRS port group indicated by the antenna port indication field.
  • the first DMRS port group in the at least two DMRS port groups is the DMRS port group indicated by the antenna port indication field, and the remaining DMRS port groups are based on the DMRS port group indicated by the antenna port indication field.
  • the DMRS port group is obtained implicitly.
  • the remaining DMRS port groups are the same as the first DMRS port group.
  • the remaining DMRS port groups are obtained according to the following manner:
  • the order of the DMRS CDM groups corresponding to the first DMRS port group is the order of the DMRS CDM groups corresponding to the first DMRS port group.
  • the DMRS ports in the first DMRS port group all belong to the first DMRS CDM group, such as CDM group 0, and the DMRS ports in the second DMRS port group come from the adjacent second DMRS CDM group, such as CDM group 1 .
  • the terminal determines at least two DMRS port groups according to the antenna port indication field, and further includes: the terminal obtains a phase-tracking reference signal (Phase-tracking reference signal, PTRS ) port and DMRS port group association relationship, the association relationship between the PTRS port and DMRS port group is one of the following:
  • Multiple PTRS ports are respectively associated with at least two DMRS port groups; for example, two PTRS ports are respectively associated with two of the DMRS port groups;
  • Multiple PTRS ports are respectively associated with multiple DMRS CDM groups; for example, two PTRS ports are respectively associated with two DMRS CDM groups;
  • Multiple PTRS ports correspond to a target DMRS port group, and the target DMRS port group is the one with the largest MCS among the at least two DMRS port groups;
  • a PTRS port is associated with the at least two DMRS port groups.
  • the target signaling further includes a PTRS-DMRS association field, and the PTRS-DMRS association field is used to indicate that the PTRS port is associated with the target DMRS port in the associated DMRS port group.
  • bit length of the PTRS-DMRS association field is X bits:
  • the PTRS-DMRS association field is used to indicate that the target PTRS port is associated with the target DMRS port in the target DMRS port group, the target DMRS port group is a DMRS port group with a large number of DMRS ports, and the target PTRS port is a target DMRS port associated with the target DMRS port The PTRS port associated with the group.
  • the PTRS-DMRS association field is used to indicate that the target PTRS port is associated with a target DMRS port in a DMRS port group, and the target PTRS port is a PTRS port associated with the DMRS port group.
  • the X bits of the PTRS-DMRS association field are divided into two parts to respectively indicate that two PTRS ports are associated with target DMRS ports in the corresponding two groups of DMRS ports.
  • the DMRS port group corresponding to the PTRS-DMRS association domain with a large number of DMRS ports is established when at least one of the following conditions is met:
  • the number of DMRS ports in the two groups is not equal;
  • the ranks indicated by the two first indication fields are not equal.
  • the X bits of the PTRS-DMRS association field are divided into two parts to respectively indicate two groups of DMRS port indication fields, which are established when at least one of the following conditions is met:
  • the number of DMRS ports in the two groups is equal;
  • the ranks indicated by the two first indication fields are equal.
  • the maximum number of PTRS ports configured on the network side is 2, the rank numbers indicated by two TPMIs or two SRIs are not equal, and the numbers of two groups of DMRS ports indicated by the DMRS port indication field are also not equal.
  • the PTRS-DMRS association The bit length of the field is 2 bits corresponding to a large number of DMRS port groups, that is, selecting a DMRS port from a large number of DMRS port groups to associate with a target PTRS port, and the target PTRS port is the SRI with a large number of DMRS port groups or a large rank /TPMI associated PTRS port.
  • the DMRS ports in a DMRS port group share an associated PTRS port.
  • the DMRS ports in one DMRS port group are from the same DMRS CDM group.
  • the terminal determines the uplink transmission mode of the terminal according to the antenna port indication field, where the uplink transmission mode is the first transmission mode or the third transmission mode, and the first transmission mode The mode is to use one beam to send the PUSCH, and the third transmission mode is that the PUSCH is sent by using multiple beams Time-Division Multiplexing (TDM), that is, different transmission opportunities use different beams to send the PUSCH.
  • TDM Time-Division Multiplexing
  • the target signaling further includes multiple first indication fields, and the rank indication parameter corresponding to a beam using the first transmission mode is indicated by the first first indication field.
  • the target signaling further includes multiple SRI indication fields, the beam using the first transmission mode is the first beam, and the first beam is the first SRI Indicates the spatial relationship or first TCI status associated with the SRS resource indicated by the Indication field.
  • the beam using the first transmission mode adopts a first Transmission Configuration Indicator (TCI) state, and the TCI state is indicated by other signaling.
  • TCI Transmission Configuration Indicator
  • the first Y of the Z DMRS ports indicated by the antenna port indication field are valid DMRS ports, and Y is the rank indicated by the first indication field.
  • Y is the rank indicated by the first first indication field.
  • the first transmission mode is adopted when at least one of the following conditions is met:
  • the number of precoding layers indicated by the first indication field is 1;
  • the first target indication field indicates that one beam is used for transmission
  • the antenna port indication field indicates a reserved code point
  • All the DMRS ports in the one DMRS port group belong to one CDM group.
  • the DMRS ports indicated by the antenna port indication field are 0 to L-1, and L is the rank indicated by the first indication field.
  • the first DMRS port group indicated by the antenna port indication field takes effect.
  • the third transmission mode is adopted when at least one of the following conditions is met:
  • the first target indication field indicates that two beams are used for transmission
  • the DMRS ports indicated by the antenna indication field all belong to one CDM group.
  • the terminal determines the uplink transmission mode of the terminal according to the antenna port indicator field, where the uplink transmission mode is the second transmission mode, and the second transmission mode is to use multiple beams to send PUSCH.
  • the second transmission mode can be one of space division multiplexing (Space Division Multiplexing, SDM), single frequency network (Single Frequency Network, SFN), frequency division multiplexing (Frequency Division Multiplexing, FDM), wherein SDM represents different space Streams are sent using different beams.
  • the target signaling also includes one or more first indication fields, and using multiple beams to send PUSCH includes:
  • Two beams are used to send PUSCH, where:
  • the M layers of PUSCH are sent using one beam, and the N layers are sent using another beam;
  • N A-M
  • A is the value of the total rank indicated by the first indication field.
  • the target signaling includes two first indication fields
  • M and N are respectively the ranks indicated by the two first indication fields
  • M and N are determined by the two DMRS port groups.
  • M and N are determined by two DMRS port groups, and the DMRS ports in the two DMRS port groups are respectively from two DMRS CDM groups, and M is the first DMRS The number of DMRS ports in the CDM group, N is the number of DMRS ports in the second DMRS CDM group.
  • the second transmission mode is adopted when the following conditions are met: the DMRS ports in the at least two DMRS port groups are from at least two DMRS CDM groups.
  • the multiple beams are mapped to the at least two DMRS port groups.
  • the multiple DMRS port groups include the DMRS port with the smallest index as the first DMRS port group.
  • the mapping order of the beams and DMRS port groups is indicated by a first target indication field in the target signaling.
  • the first DMRS port group corresponds to the first beam.
  • the number of beams used by the terminal to send the PUSCH is indicated by the network side through RRC configuration or DCI. For example, indicated by the first target field.
  • the beam refers to: SRS, spatial relationship, TCI state or QCL type D reference signal.
  • the first target indication field exists when at least one of the following conditions is met:
  • a fourth transmission mode is configured, and the fourth transmission mode is a frequency division multiplexing mode, or a transmission mode in which at least two target resources are associated for PUSCH transmission;
  • the fifth transmission mode is not configured, and the fifth transmission mode is a space division multiplexing method
  • At least one code point in the TCI indication field is associated with two TCI states for uplink transmission;
  • the target resource is, for example, spatial relationship, SRS, TCI state, panel, TPMI, and the like.
  • the bit length of the first target indication field is 1 bit:
  • a fifth transmission mode is configured, and the fifth transmission mode is a space division multiplexing mode.
  • Table 3 is the relationship between the number of two groups of DMRS port groups indicated by the beam, TPMI and target instructions:
  • Number of Beams Number of TPMIs Indicates the number of DMRS groups Behavior 1 1 1 Legacy 1 1 2 Both groups use a beam 1 2 1 do not expect this case 1 2 2 Both groups use a beam 2 1 1 use the first beam 2 1 2 use a beam respectively 2 2 1 Share a set of DMRS ports 2 2 2 use a beam respectively
  • the embodiment of the present application also provides a reference signal port indication method, including:
  • Step 61 The network side device sends target signaling, the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate the DMRS port of the uplink channel, so that the terminal, according to the antenna port indication field, Determine at least two DMRS port groups, or determine the uplink transmission mode of the terminal.
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate multiple DMRS ports;
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate at least two DMRS ports;
  • the target signaling includes a plurality of antenna port indication fields, and each of the antenna port indication fields is used to indicate one of the DMRS port groups;
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port group; the first DMRS port group in the at least two DMRS port groups is the antenna port indication The DMRS port group indicated by the antenna port indication field, and the remaining DMRS port groups are obtained implicitly according to the DMRS port group indicated by the antenna port indication field.
  • Embodiment 1 of this application is a diagrammatic representation of Embodiment 1 of this application:
  • the network side sends DCI to the terminal.
  • the DCI includes an antenna port indication field and two first indication fields.
  • the ranks indicated by the two first indication fields are 2 and 2 respectively.
  • the corresponding rank of the antenna port indication field is equal to Interpretation of 4, when the value of the antenna port indication field (Value) is 0, according to Table 4, the corresponding DMRS port set 0-3, wherein, DMRS ports 0, 1 belong to a CDM group, DMRS ports 2, 3 belong to a CDM group group, at this time the two CDM groups are two DMRS port groups.
  • the corresponding DMRS port set ⁇ 0, 1, 6, 7 ⁇ , ⁇ 0, 1 ⁇ is the first DMRS port group, ⁇ 6, 7 ⁇ For the second DMRS port group.
  • Embodiment 2 of this application is a diagrammatic representation of Embodiment 2 of this application:
  • the network side sends DCI to the terminal, and the DCI includes an antenna port indication domain, and a codepoint (code point) in the antenna port indication domain corresponds to two DMRS port groups: DMRS port(s) and DMRS port(s) , respectively corresponding to the transmission layer using different beams.
  • Embodiment 3 of this application is a diagrammatic representation of Embodiment 3 of this application:
  • the network side sends DCI to the terminal, and the DCI includes the antenna port indication field, and the DMRS port indicated by the antenna port indication field comes from two CDM groups, and the interpretation of the two bits of the PTRS-DMRS association field is shown in Table 6. .
  • Embodiment 4 of this application is a diagrammatic representation of Embodiment 4 of this application:
  • the network side sends DCI to the terminal, and the DCI includes an antenna port indication field and a TPMI indication field.
  • the terminal according to The first DMRS port combination table determines at least two DMRS port groups; the first DMRS port combination table includes the first DMRS port set ⁇ 0, 2, 3 ⁇ , please refer to Table 7-Table 11:
  • the terminal determines at least two DMRS port groups according to the second DMRS port combination table; the second DMRS port combination table does not include the first DMRS port set ⁇ 0, 2, 3 ⁇ , See Table 12-Table 16:
  • the reference signal port indication method provided in the embodiment of the present application may be executed by a reference signal port indication device.
  • the method for indicating the reference signal port performed by the reference signal port indicating device is taken as an example to describe the reference signal port indicating device provided in the embodiment of the present application.
  • a reference signal port indication device 70 including:
  • a receiving module 71 configured to receive target signaling, where the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel;
  • the determining module 72 is configured to determine at least two DMRS port groups according to the antenna port indicator field, or determine an uplink transmission mode of the terminal.
  • the terminal can determine at least two DMRS port groups according to the DMRS port indicated by the antenna port indication field for the uplink channel, or determine the uplink transmission mode of the terminal, since at least two DMRS ports are determined Therefore, in the MTRP scenario, PUSCHs sent by different beams can use corresponding DMRS ports in different DMRS port groups.
  • DMRS ports in different DMRS port groups use different time-frequency resources, mutual interference can be reduced and improved The transmission performance of the number of uplinks.
  • the target signaling includes an antenna port indication field and one or more first indication fields, and the antenna port indication field is used to indicate multiple DMRS ports;
  • the determining module 72 is configured to determine at least two DMRS port groups according to the target rank and the antenna port indication field; wherein, the target rank is determined according to the rank indicated by the first indication field.
  • the target rank is the sum of ranks indicated by the multiple first indication fields
  • the target rank is the larger one among the ranks indicated by the plurality of first indication fields
  • the target rank is the rank indicated by the first first indication field in the plurality of first indication fields.
  • the first indication field is a valid indication field.
  • the sum of ranks indicated by the multiple first indication fields does not exceed a maximum rank limit.
  • the determining module 72 is configured to divide the multiple DMRS ports indicated by the antenna port indication field into at least two DMRS port groups according to the target rank.
  • the dividing the multiple DMRS ports indicated by the antenna port indication field into at least two DMRS port groups according to the target rank includes:
  • the multiple DMRS ports are divided into at least two DMRS port groups, wherein the DMRS ports belonging to the same DMRS CDM group are one DMRS port group.
  • the first Y ports among the multiple DMRS ports indicated by the antenna port indication field are the target first indication
  • the DMRS port corresponding to the domain, the target first indication domain is a first indication domain with a smaller rank indicated among the plurality of first indication domains.
  • the target signaling includes an antenna port indication field and at least two first indication fields
  • the antenna port indication field is used to indicate at least two DMRS port groups
  • each of the DMRS port groups includes At least one DMRS port.
  • the antenna port indication field uses a code point to indicate the at least two DMRS port groups.
  • the antenna port indication field uses one code point to indicate two DMRS port groups, and the second DMRS port group is determined by the rank indicated by the second first indication field.
  • the DMRS ports in different DMRS port groups correspond to different DMRS CDM groups.
  • each DMRS port group corresponds to a first indication field
  • Each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the first indication fields corresponding to different DMRS port groups are different.
  • the target signaling further includes a first target indication field, where the first target indication field is used to indicate the first indication field corresponding to the rank indication parameter.
  • ranks indicated by each of the first indication fields are the same.
  • the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication field in the plurality of first indication fields, and the rank indicated by the target first indication field is equal to the target DMRS port group. Number of DMRS ports in the port group.
  • ranks indicated by the multiple first indication fields are different.
  • the determining module 72 is configured to determine at least two DMRS port groups according to the antenna indicator field and the DMRS combination table, and the DMRS port combination table includes a first DMRS port combination table or a second DMRS port combination table Table, the first DMRS port combination table includes a first DMRS port set.
  • the determining at least two DMRS port groups according to the antenna indication field and the DMRS combination table includes:
  • the terminal determines at least two DMRS port groups according to the first DMRS port combination table
  • the terminal determines at least two DMRS port groups according to the second DMRS port combination table.
  • the target signaling includes multiple antenna port indication fields, and each antenna port indication field is used to indicate one DMRS port group.
  • the DMRS ports in the DMRS port groups indicated by different antenna port indication fields correspond to different DMRS CDM groups.
  • the target signaling includes two antenna port indication fields, the target signaling further includes two first indication fields, and the second antenna port indication field is associated with the second first indication field.
  • the target signaling further includes one or more first indication fields, the target signaling includes two antenna port indication fields, and the second antenna port indication field is based on the target rank indicated by the target first indication field.
  • the target signaling further includes a first target indication field, and the target rank indication parameter is determined by the first target indication field.
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate one DMRS port group; the first DMRS port group in the at least two DMRS port groups is the The DMRS port group indicated by the antenna port indication field, and the remaining DMRS port groups are obtained implicitly according to the DMRS port group indicated by the antenna port indication field.
  • the remaining DMRS port groups are the same as the first DMRS port group.
  • the remaining DMRS port groups are obtained according to the following manner:
  • the order of the DMRS CDM groups corresponding to the first DMRS port group is the order of the DMRS CDM groups corresponding to the first DMRS port group.
  • the determination module 72 is configured to obtain the association relationship between the PTRS port and the DMRS port group, and the association relationship between the PTRS port and the DMRS port group is one of the following:
  • a plurality of PTRS ports are respectively associated with the at least two DMRS port groups
  • Multiple PTRS ports are respectively associated with multiple DMRS CDM groups
  • Multiple PTRS ports correspond to a target DMRS port group, and the target DMRS port group is the one with the largest MCS among the at least two DMRS port groups;
  • a PTRS port is associated with the at least two DMRS port groups.
  • the target signaling further includes a PTRS-DMRS association field, and the PTRS-DMRS association field is used to indicate that the PTRS port is associated with the target DMRS port in the associated DMRS port group.
  • bit length of the PTRS-DMRS association field is X bits:
  • the PTRS-DMRS association field is used to indicate that the target PTRS port is associated with the target DMRS port in the target DMRS port group, the target DMRS port group is a DMRS port group with a large number of DMRS ports, and the target PTRS port is a target DMRS port associated with the target DMRS port The PTRS port associated with the group.
  • the X bits of the PTRS-DMRS association field are divided into two parts to respectively indicate that two PTRS ports are associated with target DMRS ports in the corresponding two groups of DMRS ports.
  • the DMRS port group corresponding to a large number of DMRS ports in the PTRS-DMRS association domain is established when at least one of the following conditions is met:
  • the number of DMRS ports in the two groups is not equal;
  • the ranks indicated by the two first indication fields are not equal.
  • the X bits of the PTRS-DMRS association field are divided into two parts and respectively correspondingly indicate two groups of DMRS port indication fields when at least one of the following conditions is satisfied:
  • the number of DMRS ports in the two groups is equal;
  • the ranks indicated by the two first indication fields are equal.
  • the uplink transmission mode is a first transmission mode or a third transmission mode
  • the first transmission mode is to use one beam to send PUSCH
  • the third transmission mode is to use multiple beams to send PUSCH by TDM.
  • the target signaling further includes multiple first indication fields, and the rank indication parameter corresponding to a beam using the first transmission mode is indicated by the first first indication field.
  • the target signaling further includes multiple SRI indication fields, the beam using the first transmission mode is the first beam, and the first beam is the SRS resource indicated by the first SRI indication field The associated spatial relationship or first TCI state.
  • the beam using the first transmission mode adopts the first TCI state, and the TCI state is indicated by other signaling.
  • the first Y of the Z DMRS ports indicated by the antenna port indication field are valid DMRS ports, and Y is the rank indicated by the first indication field.
  • the first transmission mode is adopted:
  • the rank of the precoding indicated by the first indication field is 1;
  • the first target indication field indicates that one beam is used for transmission
  • the antenna port indication field indicates a reserved code point
  • the DMRS ports indicated by the antenna indication field all belong to one CDM group.
  • the DMRS ports indicated by the antenna port indication field are 0 to L-1, and L is the rank indicated by the first indication field.
  • the first DMRS port group indicated by the antenna port indication field takes effect.
  • the third transmission mode is adopted:
  • the first target indication field indicates that two beams are used for transmission
  • the DMRS ports indicated by the antenna indication field all belong to one CDM group.
  • the uplink transmission mode is a second transmission mode, and the second transmission mode is to simultaneously use multiple beams to send PUSCH.
  • the target signaling further includes one or more first indication fields
  • sending the PUSCH using multiple beams includes:
  • Two beams are used to send PUSCH, where:
  • the M layers of PUSCH are sent using one beam, and the N layers are sent using another beam;
  • N A-M
  • A is the value of the total rank indicated by the first indication field.
  • the target signaling includes two first indication fields,
  • M and N are respectively the ranks indicated by the two first indication fields
  • M and N are determined by the two DMRS port groups.
  • M and N are determined by two DMRS port groups, and the DMRS ports in the two DMRS port groups are respectively from two DMRS CDM groups, and M is the DMRS port in the first DMRS CDM group Number, N is the number of DMRS ports in the second DMRS CDM group.
  • the second transmission mode is adopted when the following conditions are met: the DMRS ports in the at least two DMRS port groups are from at least two DMRS CDM groups.
  • the multiple beams are mapped to the at least two DMRS port groups.
  • the multiple DMRS port groups include the DMRS port with the smallest index as the first DMRS port group.
  • mapping order of the beams and DMRS port groups is indicated by a first target indication field in the target signaling.
  • the first DMRS port group corresponds to the first beam.
  • the number of beams used for sending the PUSCH is indicated by the network side through RRC configuration or DCI.
  • the first target indication domain exists when at least one of the following conditions is met:
  • a fourth transmission mode is configured, and the fourth transmission mode is a frequency division multiplexing mode, or a transmission mode in which at least two target resources are associated for PUSCH transmission;
  • the fifth transmission mode is not configured, and the fifth transmission mode is a space division multiplexing method
  • At least one code point in the TCI indication field is associated with two TCI states for uplink transmission;
  • the bit length of the first target indication field is 1 bit:
  • a fifth transmission mode is configured, and the fifth transmission mode is a space division multiplexing mode.
  • the apparatus for indicating a reference signal port in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip.
  • the electronic device may be a terminal, or other devices other than the terminal.
  • the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.
  • NAS Network Attached Storage
  • the reference signal port indicating device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the embodiment of the present application also provides a reference signal port indication device 80, including:
  • a sending module 81 configured to send target signaling, where the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel, so that the terminal, according to the antenna port indication field, Determine at least two DMRS port groups, or determine the uplink transmission mode of the terminal.
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate multiple DMRS ports;
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate at least two DMRS ports;
  • the target signaling includes a plurality of antenna port indication fields, and each of the antenna port indication fields is used to indicate one of the DMRS port groups;
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port group; the first DMRS port group in the at least two DMRS port groups is the antenna port indication The DMRS port group indicated by the antenna port indication field, and the remaining DMRS port groups are obtained implicitly according to the DMRS port group indicated by the antenna port indication field.
  • the reference signal port indicating device provided in the embodiment of the present application can realize various processes realized by the method embodiment in FIG. 6 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application also provides a communication device 90, including a processor 91 and a memory 92, and the memory 92 stores programs or instructions that can run on the processor 91, such as
  • the communication device 90 is a terminal
  • the program or instruction is executed by the processor 91
  • each step of the above embodiment of the reference signal port indication method executed by the terminal is implemented, and the same technical effect can be achieved.
  • the communication device 90 is a network-side device
  • the program or instruction is executed by the processor 91
  • the steps of the above-mentioned embodiment of the reference signal port indication method performed by the network-side device are implemented, and the same technical effect can be achieved. In order to avoid duplication , which will not be repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive target signaling, and the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate A DMRS port of an uplink channel; the processor is configured to determine at least two DMRS port groups according to the antenna port indication field, or determine an uplink transmission mode of the terminal.
  • FIG. 10 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 1010. At least some parts.
  • the terminal 100 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1010 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
  • the input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processor 1041 is used in a video capture mode or an image capture mode by an image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072 .
  • the touch panel 1071 is also called a touch screen.
  • the touch panel 1071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 101 after the radio frequency unit 101 receives the downlink data from the network side device, it can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 101 can send the uplink data to the network side device.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 109 can be used to store software programs or instructions as well as various data.
  • the memory 109 can mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area can store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc.
  • memory 109 may include volatile memory or nonvolatile memory, or, memory 109 may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM erasable programmable read-only memory
  • Electrical EPROM Electrical EPROM
  • EEPROM electronically programmable Erase Programmable Read-Only Memory
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM , SLDRAM
  • Direct Memory Bus Random Access Memory Direct Rambus
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1010 .
  • the radio frequency unit 101 is configured to receive target signaling, the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate a DMRS port of an uplink channel;
  • the processor 1010 is configured to determine at least two DMRS port groups according to the antenna port indication field, or determine an uplink transmission mode of the terminal.
  • the terminal can determine at least two DMRS port groups according to the DMRS port indicated by the antenna port indication field for the uplink channel, or determine the uplink transmission mode of the terminal, since at least two DMRS ports are determined Therefore, in the MTRP scenario, PUSCHs sent by different beams can use corresponding DMRS ports in different DMRS port groups.
  • DMRS ports in different DMRS port groups use different time-frequency resources, mutual interference can be reduced and improved The transmission performance of the number of uplinks.
  • the target signaling includes an antenna port indication field and one or more first indication fields, and the antenna port indication field is used to indicate multiple DMRS ports;
  • the processor 1010 is configured to determine at least two DMRS port groups according to the target rank and the antenna port indication field; wherein, the target rank is determined according to the rank indicated by the first indication field.
  • the target rank is the sum of ranks indicated by the multiple first indication fields
  • the target rank is the larger one among the ranks indicated by the plurality of first indication fields
  • the target rank is the rank indicated by the first first indication field in the plurality of first indication fields.
  • the first indication field is a valid indication field.
  • the sum of ranks indicated by the multiple first indication fields does not exceed a maximum rank limit.
  • the processor 1010 is configured to divide the multiple DMRS ports indicated by the antenna port indication field into at least two DMRS port groups according to the target rank.
  • the dividing the multiple DMRS ports indicated by the antenna port indication field into at least two DMRS port groups according to the target rank includes:
  • the multiple DMRS ports are divided into at least two DMRS port groups, wherein the DMRS ports belonging to the same DMRS CDM group are one DMRS port group.
  • the first Y ports among the multiple DMRS ports indicated by the antenna port indication field are the target first indication
  • the DMRS port corresponding to the domain, the target first indication domain is a first indication domain with a smaller rank indicated among the plurality of first indication domains.
  • the target signaling includes an antenna port indication field and at least two first indication fields
  • the antenna port indication field is used to indicate at least two DMRS port groups
  • each of the DMRS port groups includes At least one DMRS port.
  • the antenna port indication field uses a code point to indicate the at least two DMRS port groups.
  • the antenna port indication field uses one code point to indicate two DMRS port groups, and the second DMRS port group is determined by the rank indicated by the second first indication field.
  • the DMRS ports in different DMRS port groups correspond to different DMRS CDM groups.
  • each DMRS port group corresponds to a first indication field
  • Each DMRS port group corresponds to a rank indication parameter indicated by a first indication field
  • the first indication fields corresponding to different DMRS port groups are different.
  • the target signaling further includes a first target indication field, where the first target indication field is used to indicate the first indication field corresponding to the rank indication parameter.
  • ranks indicated by each of the first indication fields are the same.
  • the target DMRS port group in the at least two DMRS port groups corresponds to the target first indication field in the plurality of first indication fields, and the rank indicated by the target first indication field is equal to the target DMRS port group. Number of DMRS ports in the port group.
  • ranks indicated by the multiple first indication fields are different.
  • the processor 1010 is configured to determine at least two DMRS port groups according to the antenna indication field and the DMRS combination table, where the DMRS port combination table includes a first DMRS port combination table or a second DMRS port combination Table, the first DMRS port combination table includes a first DMRS port set.
  • the determining at least two DMRS port groups according to the antenna indication field and the DMRS combination table includes:
  • the terminal determines at least two DMRS port groups according to the first DMRS port combination table
  • the terminal determines at least two DMRS port groups according to the second DMRS port combination table.
  • the target signaling includes multiple antenna port indication fields, and each antenna port indication field is used to indicate one DMRS port group.
  • the DMRS ports in the DMRS port groups indicated by different antenna port indication fields correspond to different DMRS CDM groups.
  • the target signaling includes two antenna port indication fields, the target signaling further includes two first indication fields, and the second antenna port indication field is associated with the second first indication field.
  • the target signaling further includes one or more first indication fields, the target signaling includes two antenna port indication fields, and the second antenna port indication field is based on the target rank indicated by the target first indication field.
  • the target signaling further includes a first target indication field, and the target rank indication parameter is determined by the first target indication field.
  • the target signaling includes an antenna port indication field, and the antenna port indication field is used to indicate one DMRS port group; the first DMRS port group in the at least two DMRS port groups is the The DMRS port group indicated by the antenna port indication field, and the remaining DMRS port groups are obtained implicitly according to the DMRS port group indicated by the antenna port indication field.
  • the remaining DMRS port groups are the same as the first DMRS port group.
  • the remaining DMRS port groups are obtained according to the following manner:
  • the order of the DMRS CDM groups corresponding to the first DMRS port group is the order of the DMRS CDM groups corresponding to the first DMRS port group.
  • the processor 1010 is configured to obtain the association relationship between the PTRS port and the DMRS port group, where the association relationship between the PTRS port and the DMRS port group is one of the following:
  • a plurality of PTRS ports are respectively associated with the at least two DMRS port groups
  • Multiple PTRS ports are respectively associated with multiple DMRS CDM groups
  • Multiple PTRS ports correspond to a target DMRS port group, and the target DMRS port group is the one with the largest MCS among the at least two DMRS port groups;
  • a PTRS port is associated with the at least two DMRS port groups.
  • the target signaling further includes a PTRS-DMRS association field, and the PTRS-DMRS association field is used to indicate that the PTRS port is associated with the target DMRS port in the associated DMRS port group.
  • bit length of the PTRS-DMRS association field is X bits:
  • the PTRS-DMRS association field is used to indicate that the target PTRS port is associated with the target DMRS port in the target DMRS port group, the target DMRS port group is a DMRS port group with a large number of DMRS ports, and the target PTRS port is a target DMRS port associated with the target DMRS port The PTRS port associated with the group.
  • the X bits of the PTRS-DMRS association field are divided into two parts to respectively indicate that two PTRS ports are associated with target DMRS ports in the corresponding two groups of DMRS ports.
  • the DMRS port group corresponding to a large number of DMRS ports in the PTRS-DMRS association domain is established when at least one of the following conditions is met:
  • the number of DMRS ports in the two groups is not equal;
  • the ranks indicated by the two first indication fields are not equal.
  • the X bits of the PTRS-DMRS association field are divided into two parts and respectively correspondingly indicate two groups of DMRS port indication fields when at least one of the following conditions is satisfied:
  • the number of DMRS ports in the two groups is equal;
  • the ranks indicated by the two first indication fields are equal.
  • the uplink transmission mode is a first transmission mode or a third transmission mode
  • the first transmission mode is to use one beam to send PUSCH
  • the third transmission mode is to use multiple beams to send PUSCH by TDM.
  • the target signaling further includes multiple first indication fields, and the rank indication parameter corresponding to a beam using the first transmission mode is indicated by the first first indication field.
  • the target signaling further includes multiple SRI indication fields, the beam using the first transmission mode is the first beam, and the first beam is the SRS resource indicated by the first SRI indication field The associated spatial relationship or first TCI state.
  • the beam using the first transmission mode adopts the first TCI state, and the TCI state is indicated by other signaling.
  • the first Y of the Z DMRS ports indicated by the antenna port indication field are valid DMRS ports, and Y is the rank indicated by the first indication field.
  • the first transmission mode is adopted:
  • the rank of the precoding indicated by the first indication field is 1;
  • the first target indication field indicates that one beam is used for transmission
  • the antenna port indication field indicates a reserved code point
  • the DMRS ports indicated by the antenna indication field all belong to one CDM group.
  • the DMRS ports indicated by the antenna port indication field are 0 to L-1, and L is the rank indicated by the first indication field.
  • the first DMRS port group indicated by the antenna port indication field takes effect.
  • the third transmission mode is adopted:
  • the first target indication field indicates that two beams are used for transmission
  • the DMRS ports indicated by the antenna indication field all belong to one CDM group.
  • the uplink transmission mode is a second transmission mode, and the second transmission mode is to simultaneously use multiple beams to send PUSCH.
  • the target signaling further includes one or more first indication fields
  • sending the PUSCH using multiple beams includes:
  • Two beams are used to send PUSCH, where:
  • the M layers of PUSCH are sent using one beam, and the N layers are sent using another beam;
  • N A-M
  • A is the value of the total rank indicated by the first indication field.
  • the target signaling includes two first indication fields,
  • M and N are respectively the ranks indicated by the two first indication fields
  • M and N are determined by the two DMRS port groups.
  • M and N are determined by two DMRS port groups, the DMRS ports in the two DMRS port groups are from two DMRS CDM groups respectively, and M is the DMRS port in the first DMRS CDM group Number, N is the number of DMRS ports in the second DMRS CDM group.
  • the second transmission mode is adopted when the following conditions are met: the DMRS ports in the at least two DMRS port groups are from at least two DMRS CDM groups.
  • the multiple beams are mapped to the at least two DMRS port groups.
  • the multiple DMRS port groups include the DMRS port with the smallest index as the first DMRS port group.
  • mapping order of the beams and DMRS port groups is indicated by a first target indication field in the target signaling.
  • the first DMRS port group corresponds to the first beam.
  • the number of beams used for sending the PUSCH is indicated by the network side through RRC configuration or DCI.
  • the first target indication domain exists when at least one of the following conditions is met:
  • At least two SRS resource sets are configured
  • a fourth transmission mode is configured, and the fourth transmission mode is a frequency division multiplexing mode, or a transmission mode in which at least two target resources are associated for PUSCH transmission;
  • the fifth transmission mode is not configured, and the fifth transmission mode is a space division multiplexing method
  • At least one code point in the TCI indication field is associated with two TCI states for uplink transmission;
  • the bit length of the first target indication field is 1 bit:
  • a fifth transmission mode is configured, and the fifth transmission mode is a space division multiplexing mode.
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is used to send target signaling, and the target signaling includes an antenna port indication field, and the antenna port indication field is used for Indicates the DMRS port of the uplink channel, so that the terminal determines at least two DMRS port groups according to the antenna port indication field, or determines the uplink transmission mode of the terminal.
  • the network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 110 includes: an antenna 111 , a radio frequency device 112 , a baseband device 113 , a processor 114 and a memory 115 .
  • the antenna 111 is connected to the radio frequency device 112 .
  • the radio frequency device 112 receives information through the antenna 111, and sends the received information to the baseband device 113 for processing.
  • the baseband device 113 processes the information to be sent and sends it to the radio frequency device 112
  • the radio frequency device 112 processes the received information and sends it out through the antenna 111 .
  • the method performed by the network side device in the above embodiments may be implemented in the baseband device 113, where the baseband device 113 includes a baseband processor.
  • the baseband device 113 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
  • the program executes the network device operations shown in the above method embodiments.
  • the network side device may also include a network interface 116, such as a common public radio interface (common public radio interface, CPRI).
  • a network interface 116 such as a common public radio interface (common public radio interface, CPRI).
  • the network side device 110 in the embodiment of the present application further includes: instructions or programs stored in the memory 115 and executable on the processor 114, and the processor 114 calls the instructions or programs in the memory 115 to execute the various programs shown in FIG.
  • the method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.
  • the embodiment of the present application also provides a readable storage medium.
  • the readable storage medium stores a program or an instruction.
  • the program or instruction is executed by the processor, each process of the above-mentioned reference signal port indication method embodiment is implemented, and can To achieve the same technical effect, in order to avoid repetition, no more details are given here.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk, and the like.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run programs or instructions, and realize the implementation of the above reference signal port indication method
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions, and realize the implementation of the above reference signal port indication method
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the above reference signal port indication method
  • the various processes of the embodiment can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.
  • An embodiment of the present application also provides a system for indicating a reference signal port, including: a terminal and a network-side device, the terminal can be used to perform the steps of the method for indicating a reference signal port performed by the terminal as described above, and the network-side device It can be used to execute the steps of the reference signal port indication method performed by the network side device as described above.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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Abstract

本申请公开了一种参考信号端口指示方法、终端及网络侧设备，属于无线通信技术领域，本申请实施例的参考信号端口指示方法包括：终端接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。

Description

参考信号端口指示方法、终端及网络侧设备
相关申请的交叉引用
本申请主张在2021年12月28日在中国提交的中国专利申请No.202111627138.0的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于无线通信技术领域，具体涉及一种参考信号端口指示方法、终端及网络侧设备。
背景技术
网络侧设备可以通过下行控制信息(Downlink Control Information，DCI)向终端指示用于发送物理上行共享信道(Physical Uplink Shared Channel，PUSCH)的解调参考信号(Demodulation Reference Signal，DMRS)端口。相关技术中，网络侧设备在DCI中只指示一组DMRS端口，且该组DMRRS中的不同DMRS端口可能占用相同的时频资源。在多发送接收点(Multi Transmission Reception Point，MTRP)场景下，当PUSCH通过不同传输层发往不同发送接收点(Transmission Reception Point，TRP)时，如果使用占用相同的时频资源的不同DMRS端口，会造成相互干扰，影响PUSCH的解调，降低上行数据的传输性能。
发明内容
本申请实施例提供一种参考信号端口指示方法、终端及网络侧设备，能够解决DCI中只指示一组DMRS端口，在MTRP场景下有可能会造成上行数据的传输性能降低的问题。
第一方面，提供了一种参考信号端口指示方法，包括：
终端接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者， 确定所述终端的上行传输模式。
第二方面，提供了一种参考信号端口指示方法，包括：
网络侧设备发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
第三方面，提供了一种参考信号端口指示装置，包括：
接收模块，用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
确定模块，用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
第四方面，提供了一种参考信号端口指示装置，包括：
发送模块，用于发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
第五方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；所述处理器用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
第七方面，提供了一种网络侧设备，该网络侧设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第八方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述通信接口用于发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得终端根据所述天线端 口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
第九方面，提供了一种参考信号端口指示系统，包括：终端及网络侧设备，所述终端可用于执行如第一方面所述的参考信号端口指示方法的步骤，所述网络侧设备可用于执行如第二方面所述的参考信号端口指示方法的步骤。
第十方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤，或者实现如第二方面所述的方法的步骤。
第十一方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法，或实现如第二方面所述的方法。
第十二方面，提供了一种计算机程序产品，所述计算机程序产品被存储在存储介质中，所述计算机程序产品被至少一个处理器执行以实现如第一方面或第二方面所述的方法的步骤。
在本申请实施例中，终端能够根据天线端口指示域指示的用于上行信道的DMRS端口，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式，由于确定了至少两个DMRS端口组，因而，在MTRP场景下采用不同波束发送的PUSCH可以对应使用不同DMRS端口组中的DMRS端口，当不同DMRS端口组中的DMRS端口采用不同的时频资源时，可以减少相互干扰，提高上行数的传输性能。
附图说明
图1为本申请实施例可应用的一种无线通信系统的框图；
图2为MTRP PUSCH传输场景示意图；
图3为TPMI或SRI指示域的结构示意图；
图4A和4B为DMRS CDM组的示意图；
图5为本申请一实施例的参考信号端口指示方法的流程示意图；
图6为本申请另一实施例的参考信号端口指示方法的流程示意图；
图7为本申请一实施例的参考信号端口指示装置的结构示意图；
图8为本申请另一实施例的参考信号端口指示装置的结构示意图；
图9为本申请实施例的通信设备的结构示意图；
图10为本申请实施例的终端的硬件结构示意图；
图11为本申请实施例的网络侧设备的硬件结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6 th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network，RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Networks，WLAN)接入点或WiFi节点等，基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。
下面首先对本申请涉及的通信名词进行简单说明。
1)多发送接收点(Multi Transmission Reception Point，MTRP)PUSCH传输场景
如图2所示，当终端支持多面板(panel)同发时，MTRP PUSCH可以引入空分多路复用(Space Division Multiplexing，SDM)增强，即部分空间数 据流发往一个TRP，另一部分空间数据流发往另一个TRP。这里发往两个TRP可以描述为采用两个波束来发送两部分数据流。在这种传输模式下，发往两个TRP的不同rank可以采用统一的一个发射预编码矩阵指示(Transmitted Precoding Matrix Indicator，TPMI)/信道探测用参考信号资源指示(Sounding Reference Signal Resource Indicator，SRI)进行预编码，也可以是采用两个独立的TPMI/SRI分别进行预编码。
2)基于码本的PUSCH传输模式：
网络侧为用户设备(User Equipment，UE)配置用于基于码本传输的信道探测用参考信号(Sounding Reference Signal，SRS)资源集，每个资源集包含至少一个SRS资源。UE根据配置的至少一个SRS资源发送SRS，网络侧通过接收SRS来获得上行信道，并基于此来确定UE上行数据承载信道PUSCH传输的波束，预编码矩阵，调制和编码方案(Modulation and coding scheme，MCS)等，并通过DCI来通知UE。
UE接收调度PUSCH的DCI，DCI中的TPMI域从一个预定义的码本中选择一个用于所调度PUSCH传输的预编码矩阵，如表1所示。UE会根据所指示的TPMI，对上行数据进行预编码后映射到PUSCH资源上进行传输。
表1 预编码信息和层数，对于4个天线端口，如果禁用变换预编码器，则maxRank＝2或3或4
Figure PCTCN2022141964-appb-000001
Figure PCTCN2022141964-appb-000002
3)基于非码本的PUSCH传输模式：
网络侧为UE配置基于非码本传输的SRS资源集，每个资源集包含至少一个SRS资源。首先UE在网络侧配置的非零功率(Non-Zero-Power，NZP)信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)资源上检测网络侧发送的NZP CSI-RS，来获得下行信道状态信息。根据信道互易性，该下行信道信息可以近似等效为上行信道信息。UE根据上行信道信息，来计算候选的用于上行传输的预编码矩阵，采用该预编码矩阵对SRS进行预编码并发送；网络侧根据测量预编码后的SRS来进一步确定PUSCH传输所使用的预编码矩阵，并通过调度PUSCH的DCI来通知UE。
如表2所述，DCI的SRI(SRS resource indicator，SRS资源指示)域从 一个预定义SRI索引表中选择一个SRS资源索引的一个子集即SRI组来通知UE PUSCH的预编码采用的预编码矩阵，指示示例如下表，其中N SRS表示SRS资源集中的SRS资源的个数。
表2 基于非码本的PUSCH传输的SRI指示，L max＝4
Figure PCTCN2022141964-appb-000003
4)MTRP PUSCH传输的参数指示
目前在MTRP场景中，确定了配置两个SRS资源集，分别对应两个TRP。调度PUSCH的DCI中包含两个SRI域，两个TPMI域分别用来指示两套参数，同时用于PUSCH传输。其中两个SRI域对应指示两个SRS资源集中的SRS资源，每个SRS资源对应一个波束，这样PUSCH能同时采用两个波束发送，提高数据传输的可靠性。
同时，为了提高MTRP传输的灵活性，DCI中引入了一个目标域，用于指示当前两个TRP哪一个还是哪两个TRP作为PUSCH传输的目标TRP，如图3所示。
图3中，当目标域取“00”，参见图3中情况(1)，只使用第一个SRI 域和第一个TPMI域，且第一个SRI域对应第一个SRS资源集(SRS resource set1)，即两个重复传输(repetition)都发送TRP1。
当目标域取“01”，参见图3中情况(2)，只使用第一个SRI域和第一个TPMI域，且第一个SRI域对应第二个SRS资源集(SRS resource set2，即两个repetition都发送TRP2。
当目标域取“10”，参见图3中情况(3)，第一个SRI域和第一个TPMI域对应第一个SRS资源集(SRS resource set1)，第二个SRI域和第二个TPMI域对应第二个SRS资源集(SRS resource set2)，即第一个repetition采用第一个波束发送TRP1，第二个repetition采用第二个波束发送TRP2。
5)DMRS码分复用(Code Domain Multiplexing，CDM)组(group)
请参考图4A和图4B，从图4A和图4B中可以看出，属于同一个DMRS CDM组的DMRS端口占用相同的时频资源。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的参考信号端口指示方法、终端及网络侧设备进行详细地说明。
请参考图5，本申请实施例提供一种参考信号端口指示方法，包括：
步骤51：终端接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
所述目标信令可以是DCI信令。
所述上行信道例如可以是PUSCH。
步骤52：所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
本申请实施例中，每个所述DMRS端口组中包括至少一个DMRS端口。
本申请实施例中，至少两个所述DMRS端口组可以是不同的DMRS端口组，也可以是完全相同的DMRS端口组。
在本申请实施例中，终端能够根据天线端口指示域指示的用于上行信道的DMRS端口，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式，由于确定了至少两个DMRS端口组，因而，在MTRP场景下采用不同波束发送的PUSCH可以对应使用不同DMRS端口组中的DMRS端口，当不同DMRS端口组中的DMRS端口采用不同的时频资源时，可以减少相互干 扰，提高上行数的传输性能。
下面对天线指示域的指示方式进行详细说明。
一、目标信令包括一个天线端口指示域以及一个或多个第一指示域，所述天线端口指示域用于指示多个所述DMRS端口；
所述终端根据所述天线端口指示域，确定至少两个所述DMRS端口组，包括：所述终端根据目标秩和所述天线端口指示域，确定至少两个所述DMRS端口组；其中，所述目标秩根据所述第一指示域指示的秩确定。即，所述天线端口指示域根据所述目标秩解读。
本申请实施例中，可选的，上述第一指示域可以是预编码信息和层数(Precoding information and number of layers，TPMI)或SRS资源指示(SRS resource indicator，SRI)指示域，也可以是其他用于专门指示上行信道的秩(rank)的指示域。
在一些实施例中，所述目标信令可以包括一个第一指示域，目标秩等于该第一指示域指示的秩乘以一个倍数，例如确定两个DMRS端口组，则目标秩等于该第一指示域指示的秩乘以2。
在一些实施例中，所述目标信令可以包括多个第一指示域，可选的：
1)所述目标秩为所述多个第一指示域指示的秩之和；
例如，当第一指示域是TPMI指示域，且所述目标信令包括两个TPMI指示域时，目标秩为两个TPMI指示域指示的秩之和，这里的秩也可以描述为层。或者，当第一指示域是SRI指示域，且所述目标信令包括两个SRI指示域时，目标秩为两个SRI指示域指示的秩之和，也就是两个SRI field指示的SRS组中SRS的总数。
可选的，所述多个第一指示域指示的秩之和不超过最大秩限制。
可选的，所述最大秩限制由网络侧设备通过RRC信令配置或者MAC CE指示。
可选的，所述至少两个DMRS端口组中，属于不同DMRS端口组的DMRS端口来自不同的DMRS CDM组。例如，同一个DMRS端口组中的DMRS端口来自同一DMRS CDM组。
可选的，上述第一指示域为有效的指示域。即所述目标秩采用所述有效 的第一指示域解读。
2)或者，所述目标秩为所述多个第一指示域指示的秩中较大的一个；
可选的，所述天线端口指示域指示的多个DMRS端口中的前Y个端口为目标第一指示域对应的DMRS端口，所述目标第一指示域为所述多个第一指示域中指示的秩较小的第一指示域。
可选的，上述第一指示域为有效的指示域。即所述目标秩采用所述有效的第一指示域解读。
3)或者，所述目标秩为所述多个第一指示域中第一个第一指示域指示的秩。
可选的，上述第一指示域为有效的指示域。即所述目标秩采用所述有效的第一指示域解读。
本申请的实施例中，可选的，所述终端根据目标秩和所述天线端口指示域，确定至少两个所述DMRS端口组，包括：所述终端根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组。
可选的，所述终端根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组，包括：
所述终端根据DMRS端口索引大小，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，在前的DMRS端口组中的DMRS端口的端口索引小于在后的DMRS端口组中的DMRS端口的端口索引；例如：所述终端根据DMRS端口索引大小，将所述多个DMRS端口划分成两个DMRS端口组，其中，第一个DMRS端口组中的DMRS端口的端口索引小于第二个DMRS端口组中的DMRS端口的端口索引。
或者，
所述终端根据所述多个DMRS端口的排列位置，将所述多个DMRS端口划分成至少两个DMRS端口组；本申请实施例中，天线端口指示域指示的多个DMRS端口不一定按照索引大小排列。
或者，
所述终端根据所述多个DMRS端口及所述多个DMRS端口各自所属的 DMRS CDM组，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，属于同一个DMRS CDM组的DMRS端口为一个DMRS端口组。
本申请实施例中，可选的，每个DMRS端口组与一个第一指示域对应；
或者，
每个DMRS端口组与一个第一指示域指示的秩指示参数对应；
其中，不同DMRS端口组对应的第一指示域不同。
本申请实施例中，可选的，所述目标信令中还包括第一目标指示域，所述第一目标指示域用于指示所述秩指示参数对应的第一指示域。所述秩指示参数可以是TMPI或SRI。进一步可选的，每个所述第一指示域指示的秩相同。例如，当第一目标指示域取第一数值时，第一个秩指示参数由第一个第一指示域指示，第二个秩指示参数由第二个第一指示域指示；当第一目标指示域取第二数值时，第一个秩指示参数由第二个第一指示域指示，第二个秩指示参数由第一个第一指示域指示。
可选的，上述第一种关系(每个DMRS端口组与一个第一指示域指示的秩指示参数对应)和第二种关系(每个DMRS端口组与一个第一指示域指示的秩指示参数对应)在满足以下条件时使用：所述两个第一指示域指示的秩相同。
本申请的另外一些实施例中，可选的，所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域，所述目标第一指示域指示的秩等于所述目标DMRS端口组中的DMRS端口数。
进一步可选的，上述关系(所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域)在满足以下条件时使用：所述多个第一指示域指示的秩不同。
举例来说，所述目标信令包括两个第一指示域，所述终端根据所述天线端口指示域，确定两个DMRS端口组，其中，
第一个DMRS端口组与第一个第一指示域对应，第二个DMRS端口组与第二个第一指示域对应；例如，第一个DMRS端口组与第一个TMPI指示域对应，第二个DMRS端口组与第二个TMPI指示域对应；或者，第一个DMRS端口组与第一个SRI指示域对应，第二个DMRS端口组与第二个SRI指示域 对应；
或者，
第一个DMRS端口组与第一个秩指示参数对应，第二个DMRS端口组与第二个秩指示参数对应，其中，第一个秩指示参数由第一个第一指示域和第二第一指示域中的其中一个指示，第二个秩指示参数由第一个第一指示域和第二第一指示域中的其中另一个指示。所述秩指示参数可以是TMPI或SRI。例如，第一个DMRS端口组与第一个TMPI对应，第二个DMRS端口组与第二个TMPI对应，其中，第一个TMPI由第一个TMPI指示域和第二TMPI指示域中的其中一个指示，第二个TMPI由第一个TMPI指示域和第二TMPI指示域中的其中另一个指示。或者，第一个DMRS端口组与第一个SRI对应，第二个DMRS端口组与第二个SRI对应，其中，第一个SRI由第一个SRI指示域和第二SRI指示域中的其中一个指示，第二个SRI由第一个SRI指示域和第二SRI指示域中的其中另一个指示。
上述“对应”的含义是DMRS端口组中的DMRS端口数量由对应的第一指示域或秩指示参数指示的秩决定。
二、所述目标信令包括一个天线端口指示域和至少两个第一指示域，所述天线端口指示域用于指示至少两个所述DMRS端口组，每个所述DMRS端口组包括至少一个DMRS端口。
本申请实施例中，可选的，所述天线端口指示域采用一个码点指示所述至少两个DMRS端口组。
进一步可选的，所述目标信令还包括一个或多个第一指示域，所述天线端口指示域采用一个码点指示两个所述DMRS端口组，第二个DMRS端口组由第二个第一指示域指示的秩解读。
进一步可选的，所述至少两个DMRS端口组中，属于不同DMRS端口组的DMRS端口来自不同的DMRS CDM组。
本申请实施例中，可选的，每个DMRS端口组与一个第一指示域对应；
或者，
每个DMRS端口组与一个第一指示域指示的秩指示参数对应；
其中，不同DMRS端口组对应的第一指示域不同。
本申请实施例中，可选的，所述目标信令中还包括第一目标指示域，所述第一目标指示域用于指示所述秩指示参数对应的第一指示域。所述秩指示参数可以是TMPI或SRI。进一步可选的，每个所述第一指示域指示的秩相同。例如，当第一目标指示域取第一数值时，第一个秩指示参数由第一个第一指示域指示，第二个秩指示参数由第二个第一指示域指示；当第一目标指示域取第二数值时，第一个秩指示参数由第二个第一指示域指示，第二个秩指示参数由第一个第一指示域指示。
可选的，上述第一种关系(每个DMRS端口组与一个第一指示域指示的秩指示参数对应)和第二种关系(每个DMRS端口组与一个第一指示域指示的秩指示参数对应)在满足以下条件时使用：所述两个第一指示域指示的秩相同。
本申请的另外一些实施例中，可选的，所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域，所述目标第一指示域指示的秩等于所述目标DMRS端口组中的DMRS端口数。
进一步可选的，上述关系(所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域)在满足以下条件时使用：所述多个第一指示域指示的秩不同。
三、所述终端根据所述天线端口指示域，确定至少两个DMRS端口组包括：所述终端根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，所述DMRS端口组合表包括第一DMRS端口组合表或第二DMRS端口组合表，所述第一DMRS端口组合表包括第一DMRS端口集合，所述第二DMRS端口组合表不包括第一DMRS端口集合。
可选的，所述终端根据第一DMRS端口组合表，确定至少两个DMRS端口组，包括：
若所述目标信令中不存在第一目标指示域，所述终端根据第一DMRS端口组合表，确定至少两个DMRS端口组；
若所述目标信令中存在第一目标指示域，所述终端根据第二DMRS端口组合表，确定至少两个DMRS端口组。
可选的，所述第一DMRS端口集合可以包括以下至少一项：{0，2，3}；
可选的，所述第一DMRS端口集合可以包括以下至少一项：{0，2，3，6}、{0，1，4，2}；
可选的，所述第一DMRS端口集合可以包括以下至少一项：{0，1，2，4}、{0，2，3，4}；
可选的，所述第一DMRS端口集合可以包括以下至少一项：{0，2，3，8}、{0，4，5，10}、{0，1，6，2}、{0，1，6，4}、{2，3，8，4}、{2，4，5，10}。
上述方式可以确保有目标秩为1+2/1+3/3+1的组合，从而保证有不同数量的数据流分别采用两个波束发送。
本申请实施例中，上述方案一和方案三也可以结合使用，即首先根据目标秩和第一目标指示域，确定使用的DMRS端口组合表，然后，根据方案一，所述终端根据所述目标秩，将所述天线端口指示域在DMRS端口组合表中指示的多个DMRS端口划分成至少两个所述DMRS端口组。
四、目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组。
本申请实施例中，可选的，不同所述天线端口指示域指示的所述DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
本申请实施例中，可选的，所述目标信令包括两个天线端口指示域，所述目标信令还包括两个第一指示域，第二个天线端口指示域关联第二个第一指示域。
本申请实施例中，可选的，所述目标信令还包括一个或多个第一指示域，所述目标信令包括两个天线端口指示域，第二个天线端口指示域根据目标第一指示域指示的目标秩指示参数确定。
本申请实施例中，可选的，所述目标信令还包括第一目标指示域，所述目标秩指示参数由所述第一目标指示域确定。所述秩指示参数可以是TPMI或SRI。
例如：当第一目标指示域取第一数值时，目标TPMI或SRI由第一个TPMI或SRI指示域指示，当第一目标指示域取第二数值时，目标TPMI或SRI由第二个TPMI或SRI指示。
五、目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；终端根据该天线端口指示域指示的DMRS端口组隐式获得其他DMRS端口组。
可选的，所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
可选的，所述其余DMRS端口组与所述第一个DMRS端口组相同。
可选的，所述其余DMRS端口组根据以下方式获得：
第一个DMRS端口组对应的DMRS CDM组；
第一个DMRS端口组对应的DMRS CDM组的排序。
例如，第一个DMRS端口组中的DMRS端口都属于第一DMRS CDM组，如CDM group 0，则第二个DMRS端口组中的DMRS端口来自相邻的第二DMRS CDM组，如CDM group 1。
本申请实施例中，可选的，所述终端根据所述天线端口指示域，确定至少两个所述DMRS端口组，还包括：所述终端获得相位跟踪参考信号(Phase-tracking reference signal，PTRS)端口与DMRS端口组的关联关系，所述PTRS端口与DMRS端口组的关联关系为以下之一：
多个PTRS端口分别与至少两个DMRS端口组关联；例如两个PTRS端口分别与两个所述DMRS端口组关联；
多个PTRS端口分别与多个DMRS CDM组关联；例如两个PTRS端口分别与两个DMRS CDM组关联；
多个PTRS端口对应目标DMRS端口组，所述目标DMRS端口组为所述至少两个DMRS端口组中MCS最大的；
一个PTRS端口与所述至少两个DMRS端口组关联。
本申请实施例中，可选的，所述目标信令还包括PTRS-DMRS关联域，所述PTRS-DMRS关联域用于指示PTRS端口与关联的DMRS端口组中的目标DMRS端口关联。
本申请实施例中，可选的，所述PTRS-DMRS关联域的比特长度为X比特：
所述PTRS-DMRS关联域用于指示目标PTRS端口关联目标DMRS端口组中的目标DMRS端口，所述目标DMRS端口组为DMRS端口数量大的DMRS端口组，所述目标PTRS端口为与目标DMRS端口组关联的PTRS端口。
可选的，在第一传输模式下，PTRS-DMRS关联域用于指示目标PTRS端口关联一组DMRS端口组中的目标DMRS端口，所述目标PTRS端口为所述DMRS端口组关联的PTRS端口。
本申请实施例中，可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两个PTRS端口与对应的两组DMRS端口中目标DMRS端口关联。
本申请实施例中，可选的，所述PTRS-DMRS关联域对应DMRS端口数量大的DMRS端口组在满足以下至少一个条件时成立：
两组DMRS端口数量不相等；
两个第一指示域指示的秩不相等。
本申请实施例中，可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两组DMRS端口指示域在满足以下至少一个条件下成立：
两组DMRS端口数量相等；
两个第一指示域指示的秩相等。
举例来说，网络侧配置PTRS最大端口数为2，两个TPMI或者两个SRI指示的rank数不相等，DMRS端口指示域指示的两组DMRS端口的数量也不相等，此时PTRS-DMRS关联域的比特长度为2比特对应数量大的DMRS端口组，即从数量大的DMRS端口组中选一个DMRS端口关联目标PTRS端口，所述目标PTRS端口为与数量大的DMRS端口组或者秩大的SRI/TPMI关联的PTRS端口。
本申请实施例中，可选的，一个DMRS端口组中的DMRS端口共享关联的一个PTRS端口。
本申请实施例中，可选的，一个DMRS端口组中的DMRS端口来自数同一个DMRS CDM组。
本申请实施例中，可选的，所述终端根据所述天线端口指示域，确定所 述终端的上行传输模式，其中上行传输模式为第一传输模式或第三传输模式，所述第一传输模式为采用一个波束发送PUSCH，所述第三传输模式为PUSCH采用多个波束分时复用(Time-Division Multiplexing，TDM)发送，即不同传输时机采用不同波束发送PUSCH。
本申请实施例中，可选的，所述目标信令还包括多个第一指示域，采用第一传输模式的一个波束对应的秩指示参数采用第一个第一指示域指示。
本申请实施例中，可选的，所述目标信令还包括多个SRI指示域，所述采用第一传输模式的一个波束为第一个波束，所述第一个波束为第一个SRI指示域指示的SRS资源关联的空间关系或第一个TCI状态。
本申请实施例中，可选的，所述采用第一传输模式的一个波束采用第一个传输配置指示(Transmission Configuration Indicator，TCI)状态，所述TCI状态由其他信令指示。
本申请实施例中，可选的，采用用第一传输模式时，所述天线端口指示域指示的Z个DMRS端口中前Y个为有效DMRS端口，Y为第一指示域指示的秩。可选的，Y为第一个第一指示域指示的秩。
本申请实施例中，可选的，在以下条件中的至少一项满足时，采用第一传输模式：
第一指示域指示的预编码的层数为1；
第一目标指示域指示采用一个波束传输；
所述天线端口指示域指示了保留(reserved)码点；
所述一个DMRS端口组中的DMRS端口都属于一个CDM组。
本申请实施例中，可选的，所述天线端口指示域指示了保留码点时，所述天线端口指示域指示的DMRS端口为0至L-1，L为第一指示域指示的秩。
本申请实施例中，可选的，所述天线端口指示域指示的第一个DMRS端口组生效。
本申请实施例中，可选的，在以下条件中的至少一项满足时，采用第三传输模式：
第一目标指示域指示采用两个波束传输；
所述天线指示域指示的DMRS端口都属于一个CDM组。
本申请实施例中，可选的，所述终端根据所述天线端口指示域，确定所述终端的上行传输模式，其中上行传输模式为第二传输模式，所述第二传输模式为同时采用多个波束发送PUSCH。第二传输模式可以是空分复用(Space Division Multiplexing，SDM)、单频网(Single Frequency Network，SFN)、频分复用(Frequency Division Multiplexing，FDM)中的一种，其中SDM表示不同空间流采用不同波束发送。
所述目标信令还包括一个或多个第一指示域，采用多个波束发送PUSCH包括：
采用两个波束发送PUSCH，其中：
PUSCH的M个层采用一个波束发送，N个层采用另一个波束发送；
其中，
Figure PCTCN2022141964-appb-000004
或
Figure PCTCN2022141964-appb-000005
N＝A-M；
A为所述第一指示域指示的总的秩的数值。
本申请实施例中，可选的，所述目标信令包括两个第一指示域，
M和N分别为所述两个第一指示域指示的秩；
或者
M和N由两个所述DMRS端口组确定。
本申请实施例中，可选的，M和N由两个所述DMRS端口组确定，所述两个所述DMRS端口组中的DMRS端口分别来自两个DMRS CDM组，M为第一个DMRS CDM组中的DMRS端口数，N为第二DMRS CDM组中的DMRS端口数。
本申请实施例中，可选的，在以下条件满足时，采用第二传输模式：所述至少两个DMRS端口组中的DMRS端口来自至少两个DMRS CDM组。
本申请实施例中，可选的，所述多个波束与所述至少两个DMRS端口组映射。
可选的，所述多个DMRS端口组包含索引最小的DMRS端口为第一个DMRS端口组。
本申请实施例中，可选的，所述波束与DMRS端口组的映射顺序由所述目标信令中的第一目标指示域指示。
可选的，所述第一个DMRS端口组对应第一个所述波束。
本申请实施例中，可选的，所述终端发送PUSCH采用的波束的个数由网络侧通过RRC配置或DCI指示。例如，通过第一目标域指示。
本申请实施例中，波束指：SRS，空间关系，TCI状态或QCL type D的参考信号。
本申请实施例中，可选的，当满足以下条件中的至少一项时，所述第一目标指示域存在：
配置了至少两个SRS资源集；
配置了第四传输模式，所述第四传输模式频分复用方式，或者，为PUSCH传输关联至少两个目标资源的传输方式；
没有配置第五传输模式，所述第五传输模式为空分复用方式；
TCI指示域至少一个码点关联了两个用于上行传输的TCI状态；
当前生效的用于上行传输的TCI状态为两个。
所述目标资源例如为空间关系，SRS，TCI状态，panel,TPMI等。
可选的，当满足以下条件中的至少一项时，所述第一目标指示域的比特长度为1比特：
配置了至少两个SRS资源集；
配置了第五传输模式，所述第五传输模式为空分复用方式。
请参考表3，表3为波束、TPMI和目标指令指示的两组DMRS端口组的数量的关系：
表3
Beam数量 TPMI数量 指示的DMRS组的数量 行为
1 1 1 Legacy
1 1 2 两组都用一个beam
1 2 1 不期望这种case
1 2 2 两组都用一个beam
2 1 1 使用第一个beam
2 1 2 分别使用一个beam
2 2 1 共用一组DMRS port
2 2 2 分别使用一个beam
请参考图6，本申请实施例还提供一种参考信号端口指示方法，包括：
步骤61：网络侧设备发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示多个DMRS端口；
或者
所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示至少两个DMRS端口；
或者
所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组；
或者
所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
本申请实施例一：
本申请实施例中，网络侧向终端发送DCI，DCI包括天线端口指示域和两个第一指示域，两个第一指示域指示的秩分别时2和2，则天线端口指示域对应rank等于4的解读，当天线端口指示域取值(Value)为0时，根据表4，对应DMRS端口集合0-3，其中，DMRS端口0，1属于一个CDM group，DMRS端口2，3属于一个CDM group，此时这两个CDM group即为两个DMRS端口组。
表4 天线端口，变换预编码器已禁用，DMRS类型＝2，maxLength＝2，秩＝4
Figure PCTCN2022141964-appb-000006
可选的，若天线端口指示域取值为2，根据表4，对应DMRS端口集合{0，1，6，7}，{0，1}为第一个DMRS端口组，{6，7}为第二个DMRS端口组。
本申请实施方式二：
本申请实施例中，网络侧向终端发送DCI，DCI包括天线端口指示域，天线端口指示域的一个codepoint(码点)对应两个DMRS端口组：DMRS port(s)和DMRS port(s)2，分别对应采用不同波束的传输layer。
表5 天线端口，变换预编码器已启用，dmrs类型＝1，最大长度＝2，但dmrs上行链路变换预编码和tp-pi2BPSK均已配置且使用π/2-BPSK调制除外
Figure PCTCN2022141964-appb-000007
本申请实施方式三：
本申请实施例中，网络侧向终端发送DCI，DCI包括天线端口指示域，天线端口指示域指示的DMRS端口来自两个CDM group,则PTRS-DMRS关联域的两比特的解读如表6所示。
表6
Figure PCTCN2022141964-appb-000008
本申请实施方式四：
本申请实施例中，网络侧向终端发送DCI，DCI包括天线端口指示域和TPMI指示域，当TPMI指示域指示rank＝3时，且DCI中不存在第一目标指示域时，所述终端根据第一DMRS端口组合表，确定至少两个DMRS端口组；第一DMRS端口组合表中包括第一DMRS端口集合{0，2，3}，请参见表7-表11：
表7 天线端口，变换预编码器已禁用，dmrs类型＝1，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000009
表8天线端口，变换预编码器已禁用，dmrs类型＝1，maxLength＝2，秩＝3
Figure PCTCN2022141964-appb-000010
表9 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000011
表10 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000012
表11 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝2，秩＝3
Figure PCTCN2022141964-appb-000013
当第一目标指示域存在时，所述终端根据第二DMRS端口组合表，确定至少两个DMRS端口组；第二DMRS端口组合表中不包括第一DMRS端口集合{0，2，3}，请参见表12-表16：
表12 天线端口，变换预编码器已禁用，dmrs类型＝1，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000014
表13 天线端口，变换预编码器已禁用，dmrs类型＝1，maxLength＝2，秩＝3
Figure PCTCN2022141964-appb-000015
表14 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000016
表15 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝1，秩＝3
Figure PCTCN2022141964-appb-000017
表16 天线端口，变换预编码器已禁用，dmrs类型＝2，maxLength＝2，秩＝3
Figure PCTCN2022141964-appb-000018
本申请实施例提供的参考信号端口指示方法，执行主体可以为参考信号端口指示装置。本申请实施例中以参考信号端口指示装置执行参考信号端口指示方法为例，说明本申请实施例提供的参考信号端口指示装置。
请参考图7，本申请实施例还提供一种参考信号端口指示装置70，包括：
接收模块71，用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
确定模块72，用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
在本申请实施例中，终端能够根据天线端口指示域指示的用于上行信道的DMRS端口，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式，由于确定了至少两个DMRS端口组，因而，在MTRP场景下采用不同波束发送的PUSCH可以对应使用不同DMRS端口组中的DMRS端口，当 不同DMRS端口组中的DMRS端口采用不同的时频资源时，可以减少相互干扰，提高上行数的传输性能。
可选的，所述目标信令包括一个天线端口指示域以及一个或多个第一指示域，所述天线端口指示域用于指示多个DMRS端口；
其中，所述确定模块72，用于根据目标秩和所述天线端口指示域，确定至少两个所述DMRS端口组；其中，所述目标秩根据所述第一指示域指示的秩确定。
可选的，所述目标秩为所述多个第一指示域指示的秩之和；
或者
所述目标秩为所述多个第一指示域指示的秩中较大的一个；
或者
所述目标秩为所述多个第一指示域中第一个第一指示域指示的秩。
可选的，所述第一指示域为有效的指示域。
可选的，所述多个第一指示域指示的秩之和不超过最大秩限制。
可选的，所述确定模块72，用于根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组。
可选的，所述根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组，包括：
根据DMRS端口索引大小，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，在前的DMRS端口组中的DMRS端口的端口索引小于在后的DMRS端口组中的DMRS端口的端口索引；
或者
根据所述多个DMRS端口的排列位置，将所述多个DMRS端口划分成至少两个DMRS端口组；
或者
根据所述多个DMRS端口及所述多个DMRS端口各自所属的DMRS CDM组，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，属于同一个DMRS CDM组的DMRS端口为一个DMRS端口组。
可选的，所述目标秩为所述多个第一指示域指示的秩中较大的一个时， 所述天线端口指示域指示的多个DMRS端口中的前Y个端口为目标第一指示域对应的DMRS端口，所述目标第一指示域为所述多个第一指示域中指示的秩较小的第一指示域。
可选的，所述目标信令包括一个天线端口指示域和至少两个第一指示域，所述天线端口指示域用于指示至少两个所述DMRS端口组，每个所述DMRS端口组包括至少一个DMRS端口。
可选的，所述天线端口指示域采用一个码点指示所述至少两个DMRS端口组。
可选的，所述天线端口指示域采用一个码点指示两个所述DMRS端口组，第二个DMRS端口组由第二个第一指示域指示的秩确定。
可选的，不同DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
可选的，每个DMRS端口组与一个第一指示域对应；
或者，
每个DMRS端口组与一个第一指示域指示的秩指示参数对应；
其中，不同DMRS端口组对应的第一指示域不同。
可选的，所述目标信令中还包括第一目标指示域，所述第一目标指示域用于指示所述秩指示参数对应的第一指示域。
可选的，每个所述第一指示域指示的秩相同。
可选的，所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域，所述目标第一指示域指示的秩等于所述目标DMRS端口组中的DMRS端口数。
可选的，所述多个第一指示域指示的秩不同。
可选的，所述确定模块72，用于根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，所述DMRS端口组合表包括第一DMRS端口组合表或第二DMRS端口组合表，所述第一DMRS端口组合表包括第一DMRS端口集合。
可选的，所述根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，包括：
若所述目标信令中不存在第一目标指示域，所述终端根据第一DMRS端口组合表，确定至少两个DMRS端口组；
若所述目标信令中存在第一目标指示域，所述终端根据第二DMRS端口组合表，确定至少两个DMRS端口组。
可选的，所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组。
可选的，不同所述天线端口指示域指示的所述DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
可选的，所述目标信令包括两个天线端口指示域，所述目标信令还包括两个第一指示域，第二个天线端口指示域关联第二个第一指示域。
可选的，所述目标信令还包括一个或多个第一指示域，所述目标信令包括两个天线端口指示域，第二个天线端口指示域根据目标第一指示域指示的目标秩指示参数确定。
可选的，所述目标信令还包括第一目标指示域，所述目标秩指示参数由所述第一目标指示域确定。
可选的，所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
可选的，所述其余DMRS端口组与所述第一个DMRS端口组相同。
可选的，所述其余DMRS端口组根据以下方式获得：
第一个DMRS端口组对应的DMRS CDM组；
第一个DMRS端口组对应的DMRS CDM组的排序。
可选的，所述确定模块72，用于获得PTRS端口与DMRS端口组的关联关系，所述PTRS端口与DMRS端口组的关联关系为以下之一：
多个PTRS端口分别与所述至少两个DMRS端口组关联；
多个PTRS端口分别与多个DMRS CDM组关联；
多个PTRS端口对应目标DMRS端口组，所述目标DMRS端口组为所述至少两个DMRS端口组中MCS最大的；
一个PTRS端口与所述至少两个DMRS端口组关联。
可选的，所述目标信令还包括PTRS-DMRS关联域，所述PTRS-DMRS关联域用于指示PTRS端口与关联的DMRS端口组中的目标DMRS端口关联。
可选的，所述PTRS-DMRS关联域的比特长度为X比特：
所述PTRS-DMRS关联域用于指示目标PTRS端口关联目标DMRS端口组中的目标DMRS端口，所述目标DMRS端口组为DMRS端口数量大的DMRS端口组，所述目标PTRS端口为与目标DMRS端口组关联的PTRS端口。
可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两个PTRS端口与对应的两组DMRS端口中目标DMRS端口关联。
可选的，所述PTRS-DMRS关联域对应DMRS端口数量大的DMRS端口组在满足以下至少一个条件时成立：
两组DMRS端口数量不相等；
两个第一指示域指示的秩不相等。
可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两组DMRS端口指示域在满足以下至少一个条件下成立：
两组DMRS端口数量相等；
两个第一指示域指示的秩相等。
可选的，所述上行传输模式为第一传输模式或第三传输模式，所述第一传输模式为采用一个波束发送PUSCH，所述第三传输模式为PUSCH采用多个波束TDM发送。
可选的，所述目标信令还包括多个第一指示域，采用第一传输模式的一个波束对应的秩指示参数采用第一个第一指示域指示。
可选的，所述目标信令还包括多个SRI指示域，所述采用第一传输模式的一个波束为第一个波束，所述第一个波束为第一个SRI指示域指示的SRS资源关联的空间关系或第一个TCI状态。
可选的，所述采用第一传输模式的一个波束采用第一个TCI状态，所述TCI状态由其他信令指示。
可选的，采用第一传输模式时，所述天线端口指示域指示的Z个DMRS端口中前Y个为有效DMRS端口，Y为第一指示域指示的秩。
可选的，在以下条件中的至少一项满足时，采用第一传输模式：
第一指示域指示的预编码的秩为1；
第一目标指示域指示采用一个波束传输；
所述天线端口指示域指示了保留码点；
所述天线指示域指示的DMRS端口都属于一个CDM组。
可选的，所述天线端口指示域指示了保留码点时，所述天线端口指示域指示的DMRS端口为0至L-1，L为第一指示域指示的秩。
可选的，采用第一传输模式时，所述天线端口指示域指示的第一个DMRS端口组生效。
可选的，在以下条件中的至少一项满足时，采用第三传输模式：
第一目标指示域指示采用两个波束传输；
所述天线指示域指示的DMRS端口都属于一个CDM组。
可选的，所述上行传输模式为第二传输模式，所述第二传输模式为同时采用多个波束发送PUSCH。
可选的，所述目标信令还包括一个或多个第一指示域，采用多个波束发送PUSCH包括：
采用两个波束发送PUSCH，其中：
PUSCH的M个层采用一个波束发送，N个层采用另一个波束发送；
其中，
Figure PCTCN2022141964-appb-000019
或
Figure PCTCN2022141964-appb-000020
N＝A-M；
A为所述第一指示域指示的总的秩的数值。
可选的，所述目标信令包括两个第一指示域，
M和N分别为所述两个第一指示域指示的秩；
或者
M和N由两个所述DMRS端口组确定。
可选的，M和N由两个所述DMRS端口组确定，所述两个所述DMRS端口组中的DMRS端口分别来自两个DMRS CDM组，M为第一个DMRS  CDM组中的DMRS端口数，N为第二DMRS CDM组中的DMRS端口数。
可选的，在以下条件满足时，采用第二传输模式：所述至少两个DMRS端口组中的DMRS端口来自至少两个DMRS CDM组。
可选的，所述多个波束与所述至少两个DMRS端口组映射。
可选的，所述多个DMRS端口组包含索引最小的DMRS端口为第一个DMRS端口组。
可选的，所述波束与DMRS端口组的映射顺序由所述目标信令中的第一目标指示域指示。
可选的，所述第一个DMRS端口组对应第一个所述波束。
可选的，发送PUSCH采用的波束的个数由网络侧通过RRC配置或DCI指示。
可选的，当满足以下条件中的至少一项时，所述第一目标指示域存在：
配置了至少两个SRS资源集；
配置了第四传输模式，所述第四传输模式频分复用方式，或者，为PUSCH传输关联至少两个目标资源的传输方式；
没有配置第五传输模式，所述第五传输模式为空分复用方式；
TCI指示域至少一个码点关联了两个用于上行传输的TCI状态；
当前生效的用于上行传输的TCI状态为两个。
可选的，当满足以下条件中的至少一项时，所述第一目标指示域的比特长度为1比特：
配置了至少两个SRS资源集；
配置了第五传输模式，所述第五传输模式为空分复用方式。
本申请实施例中的参考信号端口指示装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的参考信号端口指示装置能够实现图5的方法实施例 实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
请参考图8，本申请实施例还提供一种参考信号端口指示装置80，包括：
发送模块81，用于发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
可选的，所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示多个DMRS端口；
或者
所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示至少两个DMRS端口；
或者
所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组；
或者
所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
本申请实施例提供的参考信号端口指示装置能够实现图6的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
可选的，如图9所示，本申请实施例还提供一种通信设备90，包括处理器91和存储器92，存储器92上存储有可在所述处理器91上运行的程序或指令，例如，该通信设备90为终端时，该程序或指令被处理器91执行时实现上述由终端执行的参考信号端口指示方法实施例的各个步骤，且能达到相同的技术效果。该通信设备90为网络侧设备时，该程序或指令被处理器91执行时实现上述由网络侧设备执行的参考信号端口指示方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器及通信接口，其中，所述通 信接口用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；所述处理器用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
该终端实施例与上述终端侧方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图10为实现本申请实施例的一种终端的硬件结构示意图。
该终端100包括但不限于：射频单元101、网络模块102、音频输出单元103、输入单元104、传感器105、显示单元106、用户输入单元107、接口单元108、存储器109以及处理器1010等中的至少部分部件。
本领域技术人员可以理解，终端100还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1010逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图10中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元104可以包括图形处理单元(Graphics Processing Unit，GPU)1041和麦克风1042，图形处理器1041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元106可包括显示面板1061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板1061。用户输入单元107包括触控面板1071以及其他输入设备1072中的至少一种。触控面板1071，也称为触摸屏。触控面板1071可包括触摸检测装置和触摸控制器两个部分。其他输入设备1072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元101接收来自网络侧设备的下行数据后，可以传输给处理器1010进行处理；另外，射频单元101可以向网络侧设备发送上行数据。通常，射频单元101包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器109可用于存储软件程序或指令以及各种数据。存储器109可主 要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器109可以包括易失性存储器或非易失性存储器，或者，存储器109可以包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器109包括但不限于这些和任意其它适合类型的存储器。
处理器1010可包括一个或多个处理单元；可选的，处理器1010集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1010中。
其中，射频单元101，用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
处理器1010，用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
在本申请实施例中，终端能够根据天线端口指示域指示的用于上行信道的DMRS端口，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式，由于确定了至少两个DMRS端口组，因而，在MTRP场景下采用不同波束发送的PUSCH可以对应使用不同DMRS端口组中的DMRS端口，当不同DMRS端口组中的DMRS端口采用不同的时频资源时，可以减少相互干 扰，提高上行数的传输性能。
可选的，所述目标信令包括一个天线端口指示域以及一个或多个第一指示域，所述天线端口指示域用于指示多个DMRS端口；
其中，所述处理器1010，用于根据目标秩和所述天线端口指示域，确定至少两个所述DMRS端口组；其中，所述目标秩根据所述第一指示域指示的秩确定。
可选的，所述目标秩为所述多个第一指示域指示的秩之和；
或者
所述目标秩为所述多个第一指示域指示的秩中较大的一个；
或者
所述目标秩为所述多个第一指示域中第一个第一指示域指示的秩。
可选的，所述第一指示域为有效的指示域。
可选的，所述多个第一指示域指示的秩之和不超过最大秩限制。
可选的，所述处理器1010，用于根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组。
可选的，所述根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组，包括：
根据DMRS端口索引大小，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，在前的DMRS端口组中的DMRS端口的端口索引小于在后的DMRS端口组中的DMRS端口的端口索引；
或者
根据所述多个DMRS端口的排列位置，将所述多个DMRS端口划分成至少两个DMRS端口组；
或者
根据所述多个DMRS端口及所述多个DMRS端口各自所属的DMRS CDM组，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，属于同一个DMRS CDM组的DMRS端口为一个DMRS端口组。
可选的，所述目标秩为所述多个第一指示域指示的秩中较大的一个时，所述天线端口指示域指示的多个DMRS端口中的前Y个端口为目标第一指示 域对应的DMRS端口，所述目标第一指示域为所述多个第一指示域中指示的秩较小的第一指示域。
可选的，所述目标信令包括一个天线端口指示域和至少两个第一指示域，所述天线端口指示域用于指示至少两个所述DMRS端口组，每个所述DMRS端口组包括至少一个DMRS端口。
可选的，所述天线端口指示域采用一个码点指示所述至少两个DMRS端口组。
可选的，所述天线端口指示域采用一个码点指示两个所述DMRS端口组，第二个DMRS端口组由第二个第一指示域指示的秩确定。
可选的，不同DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
可选的，每个DMRS端口组与一个第一指示域对应；
或者，
每个DMRS端口组与一个第一指示域指示的秩指示参数对应；
其中，不同DMRS端口组对应的第一指示域不同。
可选的，所述目标信令中还包括第一目标指示域，所述第一目标指示域用于指示所述秩指示参数对应的第一指示域。
可选的，每个所述第一指示域指示的秩相同。
可选的，所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域，所述目标第一指示域指示的秩等于所述目标DMRS端口组中的DMRS端口数。
可选的，所述多个第一指示域指示的秩不同。
可选的，所述处理器1010，用于根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，所述DMRS端口组合表包括第一DMRS端口组合表或第二DMRS端口组合表，所述第一DMRS端口组合表包括第一DMRS端口集合。
可选的，所述根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，包括：
若所述目标信令中不存在第一目标指示域，所述终端根据第一DMRS端 口组合表，确定至少两个DMRS端口组；
若所述目标信令中存在第一目标指示域，所述终端根据第二DMRS端口组合表，确定至少两个DMRS端口组。
可选的，所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组。
可选的，不同所述天线端口指示域指示的所述DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
可选的，所述目标信令包括两个天线端口指示域，所述目标信令还包括两个第一指示域，第二个天线端口指示域关联第二个第一指示域。
可选的，所述目标信令还包括一个或多个第一指示域，所述目标信令包括两个天线端口指示域，第二个天线端口指示域根据目标第一指示域指示的目标秩指示参数确定。
可选的，所述目标信令还包括第一目标指示域，所述目标秩指示参数由所述第一目标指示域确定。
可选的，所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
可选的，所述其余DMRS端口组与所述第一个DMRS端口组相同。
可选的，所述其余DMRS端口组根据以下方式获得：
第一个DMRS端口组对应的DMRS CDM组；
第一个DMRS端口组对应的DMRS CDM组的排序。
可选的，所述处理器1010，用于获得PTRS端口与DMRS端口组的关联关系，所述PTRS端口与DMRS端口组的关联关系为以下之一：
多个PTRS端口分别与所述至少两个DMRS端口组关联；
多个PTRS端口分别与多个DMRS CDM组关联；
多个PTRS端口对应目标DMRS端口组，所述目标DMRS端口组为所述至少两个DMRS端口组中MCS最大的；
一个PTRS端口与所述至少两个DMRS端口组关联。
可选的，所述目标信令还包括PTRS-DMRS关联域，所述PTRS-DMRS关联域用于指示PTRS端口与关联的DMRS端口组中的目标DMRS端口关联。
可选的，所述PTRS-DMRS关联域的比特长度为X比特：
所述PTRS-DMRS关联域用于指示目标PTRS端口关联目标DMRS端口组中的目标DMRS端口，所述目标DMRS端口组为DMRS端口数量大的DMRS端口组，所述目标PTRS端口为与目标DMRS端口组关联的PTRS端口。
可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两个PTRS端口与对应的两组DMRS端口中目标DMRS端口关联。
可选的，所述PTRS-DMRS关联域对应DMRS端口数量大的DMRS端口组在满足以下至少一个条件时成立：
两组DMRS端口数量不相等；
两个第一指示域指示的秩不相等。
可选的，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两组DMRS端口指示域在满足以下至少一个条件下成立：
两组DMRS端口数量相等；
两个第一指示域指示的秩相等。
可选的，所述上行传输模式为第一传输模式或第三传输模式，所述第一传输模式为采用一个波束发送PUSCH，所述第三传输模式为PUSCH采用多个波束TDM发送。
可选的，所述目标信令还包括多个第一指示域，采用第一传输模式的一个波束对应的秩指示参数采用第一个第一指示域指示。
可选的，所述目标信令还包括多个SRI指示域，所述采用第一传输模式的一个波束为第一个波束，所述第一个波束为第一个SRI指示域指示的SRS资源关联的空间关系或第一个TCI状态。
可选的，所述采用第一传输模式的一个波束采用第一个TCI状态，所述TCI状态由其他信令指示。
可选的，采用第一传输模式时，所述天线端口指示域指示的Z个DMRS 端口中前Y个为有效DMRS端口，Y为第一指示域指示的秩。
可选的，在以下条件中的至少一项满足时，采用第一传输模式：
第一指示域指示的预编码的秩为1；
第一目标指示域指示采用一个波束传输；
所述天线端口指示域指示了保留码点；
所述天线指示域指示的DMRS端口都属于一个CDM组。
可选的，所述天线端口指示域指示了保留码点时，所述天线端口指示域指示的DMRS端口为0至L-1，L为第一指示域指示的秩。
可选的，采用第一传输模式时，所述天线端口指示域指示的第一个DMRS端口组生效。
可选的，在以下条件中的至少一项满足时，采用第三传输模式：
第一目标指示域指示采用两个波束传输；
所述天线指示域指示的DMRS端口都属于一个CDM组。
可选的，所述上行传输模式为第二传输模式，所述第二传输模式为同时采用多个波束发送PUSCH。
可选的，所述目标信令还包括一个或多个第一指示域，采用多个波束发送PUSCH包括：
采用两个波束发送PUSCH，其中：
PUSCH的M个层采用一个波束发送，N个层采用另一个波束发送；
其中，
Figure PCTCN2022141964-appb-000021
或
Figure PCTCN2022141964-appb-000022
N＝A-M；
A为所述第一指示域指示的总的秩的数值。
可选的，所述目标信令包括两个第一指示域，
M和N分别为所述两个第一指示域指示的秩；
或者
M和N由两个所述DMRS端口组确定。
可选的，M和N由两个所述DMRS端口组确定，所述两个所述DMRS端口组中的DMRS端口分别来自两个DMRS CDM组，M为第一个DMRS CDM组中的DMRS端口数，N为第二DMRS CDM组中的DMRS端口数。
可选的，在以下条件满足时，采用第二传输模式：所述至少两个DMRS端口组中的DMRS端口来自至少两个DMRS CDM组。
可选的，所述多个波束与所述至少两个DMRS端口组映射。
可选的，所述多个DMRS端口组包含索引最小的DMRS端口为第一个DMRS端口组。
可选的，所述波束与DMRS端口组的映射顺序由所述目标信令中的第一目标指示域指示。
可选的，所述第一个DMRS端口组对应第一个所述波束。
可选的，发送PUSCH采用的波束的个数由网络侧通过RRC配置或DCI指示。
可选的，当满足以下条件中的至少一项时，所述第一目标指示域存在：
配置了至少两个SRS资源集；
配置了第四传输模式，所述第四传输模式频分复用方式，或者，为PUSCH传输关联至少两个目标资源的传输方式；
没有配置第五传输模式，所述第五传输模式为空分复用方式；
TCI指示域至少一个码点关联了两个用于上行传输的TCI状态；
当前生效的用于上行传输的TCI状态为两个。
可选的，当满足以下条件中的至少一项时，所述第一目标指示域的比特长度为1比特：
配置了至少两个SRS资源集；
配置了第五传输模式，所述第五传输模式为空分复用方式。
本申请实施例还提供一种网络侧设备，包括处理器及通信接口，其中，所述通信接口用于发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。该网络侧设备实施例与上述网络侧设备方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备。如图11所示，该网络 侧设备110包括：天线111、射频装置112、基带装置113、处理器114和存储器115。天线111与射频装置112连接。在上行方向上，射频装置112通过天线111接收信息，将接收的信息发送给基带装置113进行处理。在下行方向上，基带装置113对要发送的信息进行处理，并发送给射频装置112，射频装置112对收到的信息进行处理后经过天线111发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置113中实现，该基带装置113包括基带处理器。
基带装置113例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图11所示，其中一个芯片例如为基带处理器，通过总线接口与存储器115连接，以调用存储器115中的程序，执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口116，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本申请实施例的网络侧设备110还包括：存储在存储器115上并可在处理器114上运行的指令或程序，处理器114调用存储器115中的指令或程序执行图8所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述参考信号端口指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述参考信号端口指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述参考信号端口指示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种参考信号端口指示系统，包括：终端及网络侧设备，所述终端可用于执行如上所述的由终端执行的参考信号端口指示方法的步骤，所述网络侧设备可用于执行如上所述的由网络侧设备执行的参考信号端口指示方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求 所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (61)

  1. 一种参考信号端口指示方法，包括：
    终端接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的解调参考信号DMRS端口；
    所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
  2. 根据权利要求1所述的方法，其中，所述目标信令包括一个天线端口指示域以及一个或多个第一指示域，所述天线端口指示域用于指示多个DMRS端口；
    其中，所述终端根据所述天线端口指示域，确定至少两个DMRS端口组，包括：
    所述终端根据目标秩和所述天线端口指示域，确定至少两个所述DMRS端口组；
    其中，所述目标秩根据所述第一指示域指示的秩确定。
  3. 根据权利要求2所述的方法，其中，所述目标秩为所述多个第一指示域指示的秩之和；
    或者，
    所述目标秩为所述多个第一指示域指示的秩中较大的一个；
    或者，
    所述目标秩为所述多个第一指示域中第一个第一指示域指示的秩。
  4. 根据权利要求3所述的方法，其中，所述第一指示域为有效的指示域。
  5. 根据权利要求3所述的方法，其中，所述多个第一指示域指示的秩之和不超过最大秩限制。
  6. 根据权利要求2至5任一项所述的方法，其中，所述终端根据目标秩和所述天线端口指示域，确定至少两个DMRS端口组，包括：
    所述终端根据所述目标秩，将所述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组。
  7. 根据权利要求6所述的方法，其中，所述终端根据所述目标秩，将所 述天线端口指示域指示的多个DMRS端口划分成至少两个所述DMRS端口组，包括：
    所述终端根据DMRS端口索引大小，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，在前的DMRS端口组中的DMRS端口的端口索引小于在后的DMRS端口组中的DMRS端口的端口索引；
    或者
    所述终端根据所述多个DMRS端口的排列位置，将所述多个DMRS端口划分成至少两个DMRS端口组；
    或者
    所述终端根据所述多个DMRS端口及所述多个DMRS端口各自所属的DMRS CDM组，将所述多个DMRS端口划分成至少两个DMRS端口组，其中，属于同一个DMRS CDM组的DMRS端口为一个DMRS端口组。
  8. 根据权利要求3所述的方法，其中，所述目标秩为所述多个第一指示域指示的秩中较大的一个时，所述天线端口指示域指示的多个DMRS端口中的前Y个端口为目标第一指示域对应的DMRS端口，所述目标第一指示域为所述多个第一指示域中指示的秩较小的第一指示域。
  9. 根据权利要求1所述的方法，其中，所述目标信令包括一个天线端口指示域和多个第一指示域，所述天线端口指示域用于指示至少两个所述DMRS端口组，每个所述DMRS端口组包括至少一个DMRS端口。
  10. 根据权利要求9所述的方法，其中，所述天线端口指示域采用一个码点指示所述至少两个DMRS端口组。
  11. 根据权利要求10所述的方法，其中，所述天线端口指示域采用一个码点指示两个所述DMRS端口组，第二个DMRS端口组由第二个第一指示域指示的秩确定。
  12. 根据权利要求1或2或9所述的方法，其中，不同DMRS端口组中的DMRS端口对应不同的DMRS码分复用CDM组。
  13. 根据权利要求2或9所述的方法，其中，每个DMRS端口组与一个第一指示域对应；
    或者，
    每个DMRS端口组与一个第一指示域指示的秩指示参数对应；
    其中，不同DMRS端口组对应的第一指示域不同。
  14. 根据权利要求13所述的方法，其中，所述目标信令中还包括第一目标指示域，所述第一目标指示域用于指示所述秩指示参数对应的第一指示域。
  15. 根据权利要求13所述的方法，其中，每个所述第一指示域指示的秩相同。
  16. 根据权利要求2或9所述的方法，其中，所述至少两个DMRS端口组中的目标DMRS端口组对应所述多个第一指示域中的目标第一指示域，所述目标第一指示域指示的秩等于所述目标DMRS端口组中的DMRS端口数。
  17. 根据权利要求16所述的方法，其中，所述多个第一指示域指示的秩不同。
  18. 根据权利要求1所述的方法，其中，所述终端根据所述天线端口指示域，确定至少两个DMRS端口组包括：
    所述终端根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，所述DMRS端口组合表包括第一DMRS端口组合表或第二DMRS端口组合表，所述第一DMRS端口组合表包括第一DMRS端口集合。
  19. 根据权利要求18所述的方法，其中，所述终端根据所述天线指示域和DMRS组合表，确定至少两个DMRS端口组，包括：
    若所述目标信令中不存在第一目标指示域，所述终端根据第一DMRS端口组合表，确定至少两个DMRS端口组；
    若所述目标信令中存在第一目标指示域，所述终端根据第二DMRS端口组合表，确定至少两个DMRS端口组。
  20. 根据权利要求1所述的方法，其中，所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组。
  21. 根据权利要求20所述的方法，其中，不同所述天线端口指示域指示的所述DMRS端口组中的DMRS端口对应不同的DMRS CDM组。
  22. 根据权利要求20所述的方法，其中，所述目标信令包括两个天线端口指示域，所述目标信令还包括两个第一指示域，第二个天线端口指示域关联第二个第一指示域。
  23. 根据权利要求20所述的方法，其中，所述目标信令还包括一个或多个第一指示域，所述目标信令包括两个天线端口指示域，第二个天线端口指示域根据目标第一指示域指示的目标秩指示参数确定。
  24. 根据权利要求23所述的方法，其中，所述目标信令还包括第一目标指示域，所述目标秩指示参数由所述第一目标指示域确定。
  25. 根据权利要求1所述的方法，其中，所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
  26. 根据权利要求25所述的方法，其中，所述其余DMRS端口组与所述第一个DMRS端口组相同。
  27. 根据权利要求25所述的方法，其中，所述其余DMRS端口组根据以下方式获得：
    第一个DMRS端口组对应的DMRS CDM组；
    第一个DMRS端口组对应的DMRS CDM组的排序。
  28. 根据权利要求1所述的方法，其中，所述终端根据所述天线端口指示域，确定至少两个所述DMRS端口组，还包括：
    所述终端获得PTRS端口与DMRS端口组的关联关系，所述PTRS端口与DMRS端口组的关联关系为以下之一：
    多个PTRS端口分别与所述至少两个DMRS端口组关联；
    多个PTRS端口分别与多个DMRS CDM组关联；
    多个PTRS端口对应目标DMRS端口组，所述目标DMRS端口组为所述至少两个DMRS端口组中MCS最大的；
    一个PTRS端口与所述至少两个DMRS端口组关联。
  29. 根据权利要求28所述的方法，其中，所述目标信令还包括PTRS-DMRS关联域，所述PTRS-DMRS关联域用于指示PTRS端口与关联的DMRS端口组中的目标DMRS端口关联。
  30. 根据权利要求29所述的方法，其中，所述PTRS-DMRS关联域的比 特长度为X比特：
    所述PTRS-DMRS关联域用于指示目标PTRS端口关联目标DMRS端口组中的目标DMRS端口，所述目标DMRS端口组为DMRS端口数量大的DMRS端口组，所述目标PTRS端口为与目标DMRS端口组关联的PTRS端口。
  31. 根据权利要求30所述的方法，其中，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两个PTRS端口与对应的两组DMRS端口中目标DMRS端口关联。
  32. 根据权利要求30所述的方法，其中，所述PTRS-DMRS关联域对应DMRS端口数量大的DMRS端口组在满足以下至少一个条件时成立：
    两组DMRS端口数量不相等；
    两个第一指示域指示的秩不相等。
  33. 根据权利要求31所述的方法，其中，所述PTRS-DMRS关联域的X个比特分成两部分分别对应指示两组DMRS端口指示域在满足以下至少一个条件下成立：
    两组DMRS端口数量相等；
    两个第一指示域指示的秩相等。
  34. 根据权利要求1所述的方法，其中，所述终端根据所述天线端口指示域，确定所述终端的上行传输模式，其中上行传输模式为第一传输模式或第三传输模式，所述第一传输模式为采用一个波束发送PUSCH，所述第三传输模式为PUSCH采用多个波束TDM发送。
  35. 根据权利要求34所述的方法，其中，所述目标信令还包括多个第一指示域，采用第一传输模式的一个波束对应的秩指示参数采用第一个第一指示域指示。
  36. 根据权利要求34所述的方法，其中，所述目标信令还包括多个SRI指示域，所述采用第一传输模式的一个波束为第一个波束，所述第一个波束为第一个SRI指示域指示的SRS资源关联的空间关系或第一个TCI状态。
  37. 根据权利要求34所述的方法，其中，所述采用第一传输模式的一个波束采用第一个TCI状态，所述TCI状态由其他信令指示。
  38. 根据权利要求34所述的方法，其中，采用第一传输模式时，所述天线端口指示域指示的Z个DMRS端口中前Y个为有效DMRS端口，Y为第一指示域指示的秩。
  39. 根据权利要求34所述的方法，其中，在以下条件中的至少一项满足时，采用第一传输模式：
    第一指示域指示的预编码的秩为1；
    第一目标指示域指示采用一个波束传输；
    所述天线端口指示域指示了保留码点；
    所述天线指示域指示的DMRS端口都属于一个CDM组。
  40. 根据权利要求39所述的方法，其中，所述天线端口指示域指示了保留码点时，所述天线端口指示域指示的DMRS端口为0至L-1，L为第一指示域指示的秩。
  41. 根据权利要求34所述的方法，其中，采用第一传输模式时，所述天线端口指示域指示的第一个DMRS端口组生效。
  42. 根据权利要求34所述的方法，其中，在以下条件中的至少一项满足时，采用第三传输模式：
    第一目标指示域指示采用两个波束传输；
    所述天线指示域指示的DMRS端口都属于一个CDM组。
  43. 根据权利要求1所述的方法，其中，所述终端根据所述天线端口指示域，确定所述终端的上行传输模式，其中上行传输模式为第二传输模式，所述第二传输模式为同时采用多个波束发送PUSCH。
  44. 根据权利要求43所述的方法，其中，所述目标信令还包括一个或多个第一指示域，采用多个波束发送PUSCH包括：
    采用两个波束发送PUSCH，其中：
    PUSCH的M个层采用一个波束发送，N个层采用另一个波束发送；
    其中，
    Figure PCTCN2022141964-appb-100001
    或
    Figure PCTCN2022141964-appb-100002
    N＝A-M；
    A为所述第一指示域指示的总的秩的数值。
  45. 根据权利要求44所述的方法，其中，所述目标信令包括两个第一指 示域，
    M和N分别为所述两个第一指示域指示的秩；
    或者
    M和N由两个所述DMRS端口组确定。
  46. 根据权利要求44所述的方法，其中，M和N由两个所述DMRS端口组确定，所述两个所述DMRS端口组中的DMRS端口分别来自两个DMRS CDM组，M为第一个DMRS CDM组中的DMRS端口数，N为第二DMRS CDM组中的DMRS端口数。
  47. 根据权利要求43所述的方法，其中，在以下条件满足时，采用第二传输模式：所述至少两个DMRS端口组中的DMRS端口来自至少两个DMRS CDM组。
  48. 根据权利要求43所述的方法，其中，所述多个波束与所述至少两个DMRS端口组映射。
  49. 根据权利要求48所述的方法，其中，所述多个DMRS端口组包含索引最小的DMRS端口为第一个DMRS端口组。
  50. 根据权利要求48所述的方法，其中，所述波束与DMRS端口组的映射顺序由所述目标信令中的第一目标指示域指示。
  51. 根据权利要求49所述的方法，其中，所述第一个DMRS端口组对应第一个所述波束。
  52. 根据权利要求34或43所述的方法，其中，所述终端发送PUSCH采用的波束的个数由网络侧通过RRC配置或DCI指示。
  53. 根据权利要求14或19或24或39或42或50所述的方法，其中，当满足以下条件中的至少一项时，所述第一目标指示域存在：
    配置了至少两个SRS资源集；
    配置了第四传输模式，所述第四传输模式频分复用方式，或者，为PUSCH传输关联至少两个目标资源的传输方式；
    没有配置第五传输模式，所述第五传输模式为空分复用方式；
    TCI指示域至少一个码点关联了两个用于上行传输的TCI状态；
    当前生效的用于上行传输的TCI状态为两个。
  54. 根据权利要求14或19或24或39或42或50所述的方法，其中，当满足以下条件中的至少一项时，所述第一目标指示域的比特长度为1比特：
    配置了至少两个SRS资源集；
    配置了第五传输模式，所述第五传输模式为空分复用方式。
  55. 一种参考信号端口指示方法，包括：
    网络侧设备发送目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口，以使得终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
  56. 根据权利要求55所述的方法，其中，所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示多个DMRS端口；
    或者
    所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示至少两个DMRS端口；
    或者
    所述目标信令包括多个天线端口指示域，每个所述天线端口指示域用于指示一个所述DMRS端口组；
    或者
    所述目标信令包括一个天线端口指示域，所述天线端口指示域用于指示一个所述DMRS端口组；所述至少两个DMRS端口组中的第一个DMRS端口组为所述天线端口指示域指示的所述DMRS端口组，其余DMRS端口组根据所述天线端口指示域指示的所述DMRS端口组隐式获得。
  57. 一种参考信号端口指示装置，包括：
    接收模块，用于接收目标信令，所述目标信令包括天线端口指示域，所述天线端口指示域用于指示上行信道的DMRS端口；
    确定模块，用于根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定终端的上行传输模式。
  58. 一种参考信号端口指示装置，包括：
    发送模块，用于发送目标信令，所述目标信令包括天线端口指示域，所 述天线端口指示域用于指示上行信道的DMRS端口，以使得终端根据所述天线端口指示域，确定至少两个DMRS端口组，或者，确定所述终端的上行传输模式。
  59. 一种终端，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，其中，所述程序或指令被所述处理器执行时实现如权利要求1至54任一项所述的参考信号端口指示方法的步骤。
  60. 一种网络侧设备，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，其中，所述程序或指令被所述处理器执行时实现如权利要求55或56所述的参考信号端口指示方法的步骤。
  61. 一种可读存储介质，所述可读存储介质上存储程序或指令，其中，所述程序或指令被处理器执行时实现如权利要求1至54任一项所述的参考信号端口指示方法，或者实现如权利要求55或56所述的参考信号端口指示方法的步骤。
PCT/CN2022/141964 2021-12-28 2022-12-26 参考信号端口指示方法、终端及网络侧设备 WO2023125420A1 (zh)

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CN111447047A (zh) * 2019-01-16 2020-07-24 华为技术有限公司 发送信道信息的方法和装置与接收信道信息的方法和装置
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