WO2022199443A1 - Csi反馈方法、装置、设备及可读存储介质 - Google Patents
Csi反馈方法、装置、设备及可读存储介质 Download PDFInfo
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- WO2022199443A1 WO2022199443A1 PCT/CN2022/081168 CN2022081168W WO2022199443A1 WO 2022199443 A1 WO2022199443 A1 WO 2022199443A1 CN 2022081168 W CN2022081168 W CN 2022081168W WO 2022199443 A1 WO2022199443 A1 WO 2022199443A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Definitions
- the present application belongs to the field of communication technologies, and in particular relates to a channel state information (Channel State Information, CSI) feedback method, apparatus, device, and readable storage medium.
- CSI Channel State Information
- the terminal can receive data from multiple TRPs. same data or different data.
- Multiple TRPs can be divided into ideal backhaul and non-ideal backhaul. When the backhaul line is not ideal, there is a large delay in the exchange of information among multiple TRPs, which is more suitable for independent scheduling.
- Positive acknowledgment (ACK)/Negative acknowledgment (Negative Acknowledgement, NACK) and CSI reports are fed back to each TRP respectively.
- each TRP sends its own physical downlink control channel (Physical downlink control channel, PDCCH), and each PDCCH schedules its own physical downlink shared channel (Physical downlink shared channel).
- channel, PDSCH Physical downlink control channel
- multiple control resource sets (Control resource set, CORESET) configured for the terminal are associated with different Radio Resource Control (Radio Resource Control, RRC) parameter Control Resource Set Pool Index (CORESET PoolIndex), corresponding to different TRPs .
- Multiple PDSCHs scheduled by multiple DCIs may not overlap, partially overlap, or completely overlap in time-frequency resources.
- each TRP performs independent precoding according to its own channel, and the terminal receives multi-layer data streams belonging to multiple PDSCHs in a non-coherent joint transmission (NCJT) manner.
- NCJT non-coherent joint transmission
- scheduling information and UE feedback information can be exchanged between multiple TRPs in real time.
- PDSCHs can also be scheduled with a single DCI, including the following transmission schemes:
- SDM Space Division Multiplexing
- FDM Frequency Division Multiplexing
- Time division multiplexing Multiple repetitions of different RVs of the same TB come from different TRPs, such as repetition within one time slot, or repetition of multiple time slots.
- ACK/NACK feedback and CSI report can be fed back to any TRP.
- mapping of existing CSI reports is mainly designed for one measurement assumption, and cannot support multiple measurement assumptions well.
- Embodiments of the present application provide a CSI feedback method, apparatus, device, and readable storage medium, which can solve the problem of how a terminal reports CSI reports in scenarios with different types of measurement assumptions.
- a first aspect provides a channel state information CSI feedback method, including:
- the terminal feeds back one or more CSI reports to the network-side device, where the CSI reports include a first field corresponding to the first measurement hypothesis;
- the first measurement hypothesis includes: X single transmission and reception point STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a natural number; or, the first measurement hypothesis is all STRP measurement hypotheses and joint transmission measurement hypotheses one of the.
- a CSI feedback method including:
- the network-side device receives one or more CSI reports, where the CSI reports include a first field corresponding to the first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a positive integer; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses .
- a CSI feedback apparatus applied to a terminal, including:
- a first sending module configured to feed back one or more CSI reports to the network-side device, where the first field in the CSI report represents a first measurement hypothesis
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a natural number; or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses.
- a CSI feedback apparatus which is applied to network side equipment, including:
- a second receiving module configured to receive one or more CSI reports, where the CSI reports include a first field corresponding to the first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a positive integer; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses .
- a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor as described in the first aspect steps of the method described.
- a terminal including a processor and a communication interface, wherein the processor is configured to implement the steps of the method according to the first aspect when executed.
- a seventh aspect provides a network-side device, including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor to achieve the second The steps of the method of the aspect.
- a network-side device including a processor and a communication interface, wherein the communication interface is used to implement the steps of the method according to the second aspect during execution.
- 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 according to the first aspect or the second aspect are implemented.
- a tenth aspect provides a computer program/program product, the computer program/program product being stored in a non-volatile storage medium, the computer program/program product being executed by at least one processor to implement the first aspect or the steps of the processing 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 configured to run a program or an instruction to implement the first aspect or the second The method of processing described in the aspect.
- an embodiment of the present application provides an electronic device configured to perform the steps of the method described in the first aspect or configured to perform the steps of the method described in the second aspect.
- the terminal can report the content of one or more measurement assumptions among multiple measurement assumption types to the network side device through the first field in the CSI report, which reduces the feedback overhead of the CSI report, and can improve the Good support for MTRP transport.
- FIG. 1 is a structural diagram of a wireless communication system to which an embodiment of the present application can be applied;
- FIG. 2 is one of the flowcharts of a method for providing CSI feedback according to an embodiment of the present application
- FIG. 3 is the second flowchart of a method for providing CSI feedback according to an embodiment of the present application
- FIG. 4 is one of the schematic diagrams of an apparatus for providing CSI feedback according to an embodiment of the present application.
- FIG. 5 is a second schematic diagram of an apparatus for providing CSI feedback according to an embodiment of the present application.
- FIG. 6 is a schematic diagram of a terminal provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of a network side device provided by an embodiment of the present application.
- first, second, etc. in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specified order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
- the first object may be one or multiple.
- “and” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in 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 not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
- NR New Radio
- the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques are also applicable to applications other than NR system applications, such as 6th generation (6th generation ) Generation, 6G) communication system.
- 6th generation 6th generation
- 6G 6th generation
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), PDA, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 .
- the network side device 12 may be a base station or a core network, where the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service set (BasicServiceSet, BSS), Extended Service Set (Extended ServiceSet, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Networks (WLAN) access point , Wireless Fidelity (Wireless Fidelity, WiFi) node, Transmitting Receiving Point (TRP), wireless access network node or some other suitable term in the field, as long as the same technical effect is achieved, the base station Not limited to the specified technical vocabulary, it should be noted that, in the embodiments of this application, only the base station in the NR system is used as an example, but the specific type of the base station is not limited.
- an embodiment of the present application provides a CSI feedback method, and specific steps include: step 201 .
- Step 201 The terminal feeds back one or more CSI reports to the network side device, where the CSI reports include a first field corresponding to a first measurement hypothesis;
- some CSI information or CSI content obtained by the first measurement assumption are mapped to the first domain.
- the first measurement hypothesis includes 1 joint transmission measurement hypothesis; alternatively, the first measurement hypothesis includes 1 STRP measurement hypothesis and 1 joint transmission measurement hypothesis; or, the first measurement hypothesis includes 2 STRP measurement hypotheses and 1 A joint transmission measurement hypothesis.
- the first measurement hypothesis is the optimal one among all STRP measurement hypotheses and joint transmission measurement hypotheses.
- the joint transmission (JT) herein may include: non-coherent joint transmission (NCJT) and coherent joint transmission (CJT).
- NCJT non-coherent joint transmission
- CJT coherent joint transmission
- the bitwidth (bitwidth) of the RI field (field) is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of all rank indications supported by the terminal may be understood as the number of rank indications supported by the terminal for single TRP transmission, and/or the number of rank indications supported for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- a first value the first value includes: 0, or or or or or or
- the length of the bit width of the RI field is 0;
- bitwidth is:
- bitwidth is:
- bitwidth is:
- bitwidth is:
- bitwidth is:
- a second value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations;
- a third value includes: 0 or where NRI represents the number of all supported rank indications or rank indication combinations;
- the Nth TRP represents the Nth TRP, for example, when N is equal to 2, it is identified as the second TRP or the second TRP.
- the bit width of the RI field is a first value
- the first measurement hypothesis is a STRP measurement hypothesis
- a codepoint (codepoint) of the RI field Corresponding to a rank indication
- the first measurement hypothesis is a joint transmission measurement hypothesis
- the The bit corresponds to a rank indication of the first TRP, the previous after bits
- the bit corresponds to a rank indication of the Nth TRP; or the preamble of the RI field
- the bit corresponds to a rank indication of the first TRP, and the last part of the RI field
- the bits correspond to a rank indication of the Nth TRP.
- the bit width of the RI field is a second value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to one rank Indication
- the first measurement hypothesis is a joint transmission measurement hypothesis
- one code point in the RI field corresponds to a set of rank indications.
- a set of rank indications is shown in Table 1.
- the index value indicated by the RI field is 2, it means that the set of rank indications for JT transmission are 2 and 1.
- Table 1 Correspondence between indices and a set of rank indications.
- one code point of the RI field corresponds to one rank indication or a group of rank indications.
- rank indications are shown in Table 2.
- the index value indicated by the RI field is 2, it means STRP transmission and the rank is 3; when the index value indicated by the RI field is 10, it means JT transmission, and A set of rank indications are 2 and 1;
- Table 2 Correspondence of index and rank indication.
- Index rank indication 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 (1,1) 9 (1,2) 10 (2,1) 11 (2,2) 12 - 13 - 14 - 15 -
- the channel state information reference signal resource indicator (CSI- The bit width of the RS resource indicator, CRI) field is: Wherein K s represents the number of channel measurement resources associated with the reporting settings, and N represents the number of channel measurement resource (Channel Measure Resource, CMR) pairs associated with the reporting settings.
- N can represent the number of joint transmission measurement hypotheses that need to be measured.
- the method further includes:
- the terminal When the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses, the terminal indicates the first field to the network side device through the first field in the CSI report
- the type of measurement hypothesis is STRP measurement hypothesis or joint transmission measurement hypothesis
- the first domain is one of the following:
- the RI field adopts the aforementioned definition method.
- the legal value may be determined according to one or more of the RI limit, the number of ports, and the RI combination supported by the joint transmission.
- the newly defined indicator field is the JT Indicator field.
- the CRI field is defined as CRI0 to indicate CMR1, and CRI1 to indicate CMR2. Therefore, when the user reports CRI0 and STRP When the transmission hypothesis is assumed, the joint transmission indication field is 0; when the user reports as CRI0 and the joint transmission hypothesis is the joint transmission indication field, the joint transmission indication field is 1.
- the number of RI fields in the CSI report is:
- the mapping sequence of the joint transmission measurement hypothesis and the STRP measurement hypothesis in the RI field includes: The joint transmission measurement assumption takes precedence over the STRP measurement assumption, or the STRP measurement assumption takes precedence over the joint transmission measurement assumption.
- the first RI field corresponds to one joint transmission measurement hypothesis
- the bit width of the first RI field is based on one of the following Item or multiple determinations:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of all rank indications supported by the terminal may be understood as the number of rank indications supported by the terminal for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for joint transmission. Among them, support can also be understood as permission.
- bit width of the first RI field is one of the following:
- a fourth value, the fourth value includes: 0 or or or or or or
- a fifth value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations.
- the bit corresponds to a rank indication of the first TRP, the previous after the bit The bit corresponds to a rank indication of the NTRP;
- the bit corresponds to a rank indication of the first TRP, and the last bit of the first RI field The bit corresponds to a rank indication of the second TRP;
- a codepoint (codepoint) of the first RI field corresponds to a set of rank indications
- N is greater than or equal to 2.
- a set of rank indications is shown in Table 3.
- the index value indicated by the RI field is 2, it means that a set of rank indications for NCJT transmission are 2 and 1.
- Table 3 Correspondence of index and rank indication.
- the second RI field corresponds to one STRP measurement hypothesis
- the first RI field corresponds to one STRP measurement hypothesis.
- the bit width of the two RI fields is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the bit width of the second RI field is a sixth value
- the sixth value includes: 0 or or or or or or
- N is greater than or equal to 2.
- the bit width of the RI field is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- a seventh value, the seventh value includes: 0 or or or or or or
- the eighth value includes: 0 or or or or or or
- N is greater than or equal to 2.
- each of the X RI fields corresponds to one STRP measurement hypothesis
- the bit width of each RI field in the X RI fields is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of the RI fields is 2, the first RI field corresponds to X STRP measurement hypotheses, the second RI field corresponds to one joint transmission measurement hypothesis, and the first RI field corresponds to X STRP measurement hypotheses.
- Bit width is determined by one or more of the following:
- the number of antenna ports per TRP for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the method further includes:
- Receive high-level signaling where the high-level signaling is used to limit the first field in the CSI report, where the high-level signaling corresponds to TRP one-to-one, or the high-level signaling corresponds to a CMR or a CMR group Has a mapping relationship.
- the higher layer signaling may be typeI-SinglePanel-ri-Restriction, ri-Restriction, typeII-RI-Restriction, typeII-PortSelectionRI-Restriction, typeII-RI-Restriction-r16, typeII-PortSelectionRI-Restriction-r16.
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the granularity of the precoding matrix indicator (Precoding Matrix Indicator, PMI) and the channel quality indicator (Channel Quality Indicator, CQI) in the CSI report is wideband, and the mapping content of the STRP measurement assumption in the CSI report includes the following one or more: CRI, newly defined indication, RI, layer indicator (LI), PMI and CQI;
- the mapping content includes: (i) the first CRI, the first NCJT indication, the first RI, the first LI, the first PMI, the first a CQI; or, (ii) the first CRI, the first RI, the first LI, the first PMI, the first CQI;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes one or more of the following: one or more CRIs, a newly defined indication field, and one or more RIs , one or more LIs, one or more PMIs, one or more CQIs;
- the mapping contents include: (i) the first CRI, the first NCJT indication, the first RI, the second RI, the first LI, the second LI, first PMI, second PMI, first CQI, second CQI; or, (ii) first CRI, second CRI, first RI, second RI, first LI, second LI, first PMI , second PMI, first CQI, second CQI; or, (iii) NCJT CRI, first RI, second RI, first LI, second LI, first PMI, second PMI, first CQI, first Two CQIs.
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes: a first part (part1) and a second part (part2);
- the first part includes one or more of the following: a CRI, a newly defined indication, multiple RIs, an LI, a PMI, a CQI;
- the second part includes one or more of the following: an LI , one PMI, one CQI;
- the first part includes one or more of the following: multiple CRIs, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, a CQI;
- the first part includes one or more of the following: one CRI, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, one CQ;
- the CSI report is divided into 2 parts (part1, part2),
- Part1 mapping content includes: first CRI, first NCJT indication, first RI, second RI, first LI, first PMI, first CQI; Part2 mapping content includes: second LI, second PMI, Second CQI; or, (ii) Part1 mapping content includes: first CRI, second CRI, first RI, second RI, first LI, first PMI, first CQI; Part2 mapping content includes: second LI , second PMI, second CQI; or, (iii) Part1 mapping content includes: NCJT CRI, first RI, second RI, first LI, first PMI, first CQI; Part2 mapping content includes: second LI , a second PMI, and a second CQI.
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularity in the CSI report are subbands, and the mapping content of the STRP measurement assumption in the CSI report includes a first part, a second part and a third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, an RI, a wideband CQI for first TB, a wideband CQI for first TB, a Subband channel quality indicator (subband CQI for first TB), a non-zero wideband magnitude coefficient;
- the second part includes one or more of the following: wideband channel quality indicator (wideband CQI for second TB) for the second transport block , an LI, a wideband precoding matrix indication (wideband PMI);
- the third part includes one or more of the following: an even-numbered subband channel quality indication (even-numbered subband CQI for second TB) of the second transport block, an even-numbered subband CQI for second TB Subband precoding matrix indication (even subband PMI), odd subband channel quality indication of the second transport block (odd subband CQI for second TB), odd subband precoding matrix indication (odd subband PMI);
- the first part includes one or more of the following: a CRI, an RI, a wideband channel quality indicator (wideband CQI for first TB) of the first transport block, a subband channel quality indicator (subband CQI of the first transport block) for first TB), non-zero wideband amplitude coefficients;
- the second part includes one or more of the following: wideband channel quality indication (wideband CQI for second TB) of the second transport block, one LI, one subband precoding matrix indication (wideband PMI);
- the third part includes one or more of the following: an even-numbered subband channel quality indication (even-numbered subband CQI for second TB) of the second transport block, an even-numbered subband precoding matrix indication (even-numbered subband precoding matrix indication) subband PMI), odd subband channel quality indication of the second transport block (odd subband CQI for second TB), odd subband precoding matrix indication (odd subband PMI);
- the CSI report is divided into 2 parts (part1, part2 wideband, part2 subband),
- Part1 mapping content includes: first CRI, first NCJT indication, first RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero broadband amplitude coefficient;
- Part2 wideband mapping content includes : First wideband CQI for second TB, first LI, first wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, first even subband PMI, first odd subband CQI for second TB, first odd-numbered subband PMI;
- Part1 mapping content includes: first CRI, first RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero broadband amplitude coefficient;
- Part2 wideband mapping content includes: first wideband CQI for second TB, first LI, first wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, first even subband PMI, first odd subband CQI for second TB, first odd subband PMI;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are subbands, and the mapping content of the NCJT measurement false in the CSI report includes the first part, the second part and the third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, one or more RIs, a wideband CQI for first TB, a wideband CQI for first TB, a subband channel quality indicator (subband CQI for first TB), one or more non-zero wideband magnitude coefficients;
- the second part includes one or more of the following: wideband channel quality indicator (wideband CQI for the second transport block) second TB), one or more LIs, one or more wideband precoding matrix indications (wideband PMI), wideband channel quality indications for multiple transport blocks;
- the third part includes one or more of the following: a second Even-numbered sub-band CQIs for transport blocks, multiple even-numbered sub-band precoding matrix indications, multiple even-numbered sub-band CQIs for second transport blocks, multiple odd-numbered sub-band CQIs for second transport blocks, multiple odd subband precoding matrix indication, odd subband channel quality indication of the first transport block, odd subband channel quality indication of
- the first part includes one or more of the following: one or more CRIs, one or more RI fields, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, one or more a plurality of non-zero wideband magnitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, a plurality of wideband precoding matrix indications, a first transmission The wideband channel quality indicator of the block, the wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, a plurality of even subband codes matrix indication, even subband CQI for the first transport block, even subband CQI for the second transport block, an even subband coding matrix indication, odd subband CQI for the second transport block, Multiple odd-numbered subband coding matrix indications, and odd-numbered subband channel quality indications of multiple transport blocks;
- the first portion includes one or more of the following: CRI, one or more RIs, a wideband channel quality indicator for the first transport block, a subband channel quality indicator for the first transport block, one or more non-zero wideband Amplitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for a plurality of second transport blocks, one or more LIs, one or more wideband precoding matrix indications, a first transport block The wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, one or more even wideband precoding matrices indication, subband channel quality indication for the first transport block, subband channel quality indication for the second transport block, odd subband channel quality indication for multiple second transport blocks, one or more odd wideband precoding matrix indications , the odd-numbered subband channel quality indication of the first transport block.
- the NCJT measurement assumption report is selected and the PMI and CQI granularity is subband, then the CSI report is divided into 2 parts (part1, part2 wideband, part2 subband),
- Part1 mapping content includes: first CRI, first NCJT indication, first RI, second RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero wideband amplitude coefficient, first Two non-zero broadband amplitude coefficients;
- Part2 wideband mapping contents include: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for first TB, second wideband CQI for second TB, second LI, Second wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, The first odd-numbered subband CQI for second TB, the first odd-numbered subband PMI, the second odd-numbered subband CQI for first TB, the second odd-numbered subband CQI for second TB, the second odd-numbered subband
- Part1 mapping content includes: first CRI, second CRI, first RI, second RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero wideband amplitude coefficient, second Non-zero broadband amplitude coefficient;
- Part2 wideband mapping contents include: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for first TB, second wideband CQI for second TB, second LI, second Two wideband PMI;
- Part2 subband mapping content includes: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, One odd subband CQI for second TB, first odd subband PMI, second odd subband CQI for first TB, second odd subband CQI for second TB, second odd subband PMI;
- Part1 mapping content includes: NCJT CRI, first RI, second RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero wideband amplitude coefficient, second non-zero wideband amplitude coefficient ;
- Part2 wideband mapping content includes: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for first TB, second wideband CQI for second TB, second LI, second wideband PMI;
- the subband mapping contents include: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, first odd subband CQI for second TB, first odd subband PMI, second odd subband CQI for first TB, second odd subband CQI for second TB, second odd subband PMI.
- the CSI report includes one or more of the following:
- the CSI report mapping method may include:
- c) Use the aforementioned STRP mapping content and NCJT content to combine, for example: combine part1 of a STRP (only including CRI, RI, non-zero wideband amplitude coefficients) and Part1 of an NCJT into a new part1, combine a STRP's part1 part2 (including only the rest) and a NCJT's Part2 are combined into a new part2;
- the CSI report mapping method may include:
- Example 1 if the PMI and CQI granularity is wideband, the mapping contents include:
- Example 2 if the granularity of PMI and CQI is wideband, the CSI report is divided into 2 parts (part1, part2), and the mapping contents of Part1 and Part2 are as follows:
- Part1 mapping content includes: first CRI, first RI, second RI, third RI, first LI, first PMI, first CQI;
- Part2 mapping content includes: second LI, second PMI, first CQI Second CQI, third CRI, third LI, third PMI, third CQI;
- Part1 mapping content includes: first CRI, second CRI, first RI, second RI, third RI, first LI, first PMI, first CQI;
- Part2 mapping content includes: second LI, first Second PMI, second CQI, third CRI, third LI, third PMI, third CQI;
- Part1 mapping content includes: first CRI, third CRI, first RI, second RI, third RI, first LI, third LI, first PMI, third PMI, first CQI, third CQI;
- Part2 mapping content includes: second LI, second PMI, second CQI;
- Part1 mapping content includes: first CRI, second CRI, third CRI, first RI, second RI, third RI, first LI, third LI, first PMI, third PMI, first CQI, third CQI;
- Part2 mapping content includes: second LI, second PMI, second CQI;
- the CSI report is divided into 2 parts (part1, part2 wideband, part2 subband).
- the mapping contents of Part1 and Part2 are as follows:
- Part1 mapping content includes: first CRI, first RI, second RI, third RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero wideband amplitude coefficient, third Non-zero wideband amplitude coefficient, third non-zero wideband amplitude coefficient;
- Part2 wideband mapping content includes: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for firstTB, second wideband CQI for second TB, second LI, second wideband PMI, third wideband CQI for firstTB, third wideband CQI for second TB, third LI, third wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, First even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, third even subband CQI for first TB, third even subband CQI for second TB,
- Part1 mapping content includes: first CRI, second CRI, first RI, second RI, third RI, first wideband CQI for first TB, first subband CQI for first TB, first non-zero broadband amplitude Coefficient, third non-zero broadband amplitude coefficient, third non-zero broadband amplitude coefficient;
- Part2 wideband mapping content includes: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for firstTB, second wideband CQI for second TB, second LI, second wideband PMI, third wideband CQI for firstTB, third wideband CQI for second TB, third LI, third wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, third even subband CQI for first TB, third even subband CQI for second
- Part1 mapping content includes: first CRI, third CRI, first RI, second RI, third RI, first wideband CQI for first TB, first subband CQI for first TB, third wideband CQI for first TB, third subband CQI for first TB, first non-zero wideband amplitude coefficient, third non-zero wideband amplitude coefficient, third non-zero wideband amplitude coefficient;
- Part2 wideband mapping content includes: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for first TB, second wideband CQI for second TB, second LI, second wideband PMI, third wideband CQI for second TB, third LI, third wideband PMI;
- the subband mapping contents include: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, third even subband CQI for
- Part1 mapping content includes: first CRI, second CRI, third CRI, first RI, second RI, third RI, first wideband CQI for first TB, first subband CQI for first TB, third wideband CQI for first TB, third subband CQI for first TB, first non-zero wideband amplitude coefficient, third non-zero wideband amplitude coefficient, third non-zero wideband amplitude coefficient;
- Part2 wideband mapping contents include: first wideband CQI for second TB, first LI, first wideband PMI, second wideband CQI for first TB, second wideband CQI for second TB, second LI, second wideband PMI, third wideband CQI for second TB, third LI, third wideband PMI;
- Part2 subband mapping contents include: first even subband CQI for second TB, first even subband PMI, second even subband CQI for first TB, second even subband CQI for second TB, second even subband PMI, third Even sub
- the method further includes:
- the terminal determines the transmission priority of the CSI reports in the multiple CSI reports, and the transmission of the CSI content in the multiple TPR CSI reports one or more of the priorities;
- the CSI content in the multi-TPR CSI report includes one or more of the following: CSI content corresponding to the joint transmission measurement hypothesis, CSI content corresponding to the STRP measurement hypothesis, joint transmission measurement hypothesis broadband information, TRP measurement hypothesis broadband information, Joint transmission of measurement hypothetical subband information and TRP measurement hypothetical subband information.
- the priority of part1 is higher than that of part2 wideband
- the priority of NCJT measurement in part2 is higher than that of STRP measurement in part2
- the priority of wideband domain in Part2 is higher than that of part2 subband domain.
- a CSI feedback is based on the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH)
- PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- the transmission priority of each CSI report in the multiple CSI reports includes one or more of the following:
- MTRP CSI reporting priority is higher than non-MTRP CSI reporting;
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the transmission priority of the joint transmission measurement hypothesis is higher than the transmission priority of the STRP measurement hypothesis
- the joint transmission measurement hypothesis broadband information and the TRP measurement hypothesis broadband information have a higher transmission priority than the joint transmission measurement hypothesis subband information and the TRP measurement hypothesis subband information.
- the mapping sequence needs to match the sequence of CRIs or CMRs indicated by the CRIs;
- CRI0 is defined as CMR1 and CMR2 (a pair of CMRs associated with joint transmission measurement assumptions), then the mapping sequence is to first map RI, PMI, LI related to CMR1, and then map RI, PMI, LI related to CMR2;
- CRI0 is defined as CMR1 in CMR1 and CMR2 (a pair of CMRs associated with joint transmission measurement assumptions), then the mapping sequence is to first map RI, PMI, LI related to CMR1, and then map RI, PMI, LI related to CMR2 .
- the terminal can report the content of one or more measurement assumptions among multiple measurement assumption types to the network side device through the first field in the CSI report, which reduces the feedback overhead of the CSI report, and can improve the Good support for MTRP transport.
- an embodiment of the present application provides a CSI feedback method, and specific steps include: step 301 .
- Step 301 The network side device receives one or more CSI reports, where the CSI reports include a first field corresponding to a first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a positive integer; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses .
- the RI field is determined by one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- bit width of the RI field is one of the following:
- a first value the first value includes: 0, or or or or or or
- the length of the bit width of the RI field is 0; when one TRP has only one antenna port and the other TRP has two antenna ports, the bitwidth is When one TRP has two antenna ports and the other TRP has two antenna ports, the bitwidth is When one TRP has two antenna ports and the other TRP has four antenna ports, the bitwidth is When one TRP has four antenna ports and the other TRP has four antenna ports, the bitwidth is When each TRP has more than four antenna ports, the bitwidth is
- a second value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations;
- a third value includes: 0 or where NRI represents the number of all supported rank indications or rank indication combinations;
- the bit width of the RI field is a first value
- the first measurement hypothesis is the STRP measurement hypothesis
- a codepoint (codepoint) of the RI field Corresponding to a rank indication
- the first measurement hypothesis is a joint transmission measurement hypothesis
- the The bit corresponds to a rank indication of the first TRP, the previous after bits
- the bit corresponds to a rank indication of the NTRP; or the preamble of the RI field
- the bit corresponds to a rank indication of the first TRP, and the last part of the RI field
- the bits correspond to a rank indication of the NTRPth.
- the bit width of the RI field is a second value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to one rank Indication
- the first measurement hypothesis is a joint transmission measurement hypothesis
- one code point in the RI field corresponds to a set of rank indications.
- a set of rank indications is shown in Table 1.
- the index value indicated by the RI field is 2, it means that the set of rank indications for JT transmission are 2 and 1.
- one code point of the RI field corresponds to one rank indication or a group of rank indications.
- rank indications are shown in Table 2.
- the index value indicated by the RI field is 2, it means STRP transmission and the rank is 3; when the index value indicated by the RI field is 10, it means JT transmission, and A set of rank indications are 2 and 1;
- the channel state information reference signal resource indicator (CSI- The bit width of the RS resource indicator, CRI) field is: Wherein K s represents the number of channel measurement resources associated with the reporting settings, and N represents the number of CMR pairs associated with the reporting settings.
- N may represent the number of joint transmission measurement hypotheses to be measured.
- the method further includes:
- the network-side device uses the first field in the CSI report, or the type of the first measurement hypothesis is the STRP measurement hypothesis or the joint transmission measurement hypothesis;
- the first domain is one of the following:
- the RI field adopts the aforementioned definition method.
- the legal value is determined according to the RI limit, the number of ports, and the RI combination supported by the joint transmission;
- the newly defined indicator field is the JT Indicator field.
- the CRI field is defined as CRI0 to indicate CMR1, and CRI1 to indicate CMR2. Therefore, when the user reports CRI0 and STRP When the transmission hypothesis is assumed, the joint transmission indication field is 0; when the user reports as CRI0 and the joint transmission hypothesis is the joint transmission indication field, the joint transmission indication field is 1.
- the number of RI fields in the CSI report is:
- the mapping sequence of the joint transmission measurement hypothesis and the STRP measurement hypothesis in the RI field includes: The joint transmission measurement assumption takes precedence over the STRP measurement assumption, or the STRP measurement assumption takes precedence over the joint transmission measurement assumption.
- the first RI field corresponds to one joint transmission measurement hypothesis
- the bit width of the first RI field is based on one of the following Item or multiple determinations:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of all rank indications supported by the terminal may be understood as the number of rank indications supported by the terminal for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for joint transmission. Among them, support can also be understood as permission.
- bit width of the first RI field is one of the following:
- a fourth value, the fourth value includes: 0 or or or or or or
- a fifth value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations.
- the bit corresponds to a rank indication of the first TRP, the previous after the bit The bit corresponds to a rank indication of the NTRP;
- the bit corresponds to a rank indication of the first TRP, and the last bit of the first RI field The bit corresponds to a rank indication of the second TRP;
- a codepoint (codepoint) of the first RI field corresponds to a set of rank indications
- N is greater than or equal to 2.
- a set of rank indications is shown in Table 3.
- the index value indicated by the RI field is 2, it means that a set of rank indications for NCJT transmission are 2 and 1.
- the second RI field corresponds to one STRP measurement hypothesis
- the first RI field corresponds to one STRP measurement hypothesis.
- the bit width of the two RI fields is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the bit width of the second RI field is a sixth value
- the sixth value includes: 0 or or or or or or
- N is greater than or equal to 2.
- the bit width of the RI field is determined according to one or more of the following:
- antenna ports for example, 1 antenna port, 2 antenna ports, 4 antenna ports, and more than 4 antenna ports;
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- a seventh value, the seventh value includes: 0 or or or or or or
- the eighth value includes: 0 or or or or or or
- N RI_jt represents the number of all supported rank indication combinations
- N is greater than or equal to 2.
- the method further includes:
- Send high-layer signaling where the high-layer signaling is used to limit the first field in the CSI report, where the high-layer signaling is in one-to-one correspondence with the TRP, or the high-layer signaling is associated with the CMR or CMR group Has a mapping relationship.
- the higher layer signaling may be typeI-SinglePanel-ri-Restriction, ri-Restriction, typeII-RI-Restriction, typeII-PortSelectionRI-Restriction, typeII-RI-Restriction-r16, typeII-PortSelectionRI-Restriction-r16.
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the granularity of the Precoding Matrix Indicator (PMI) and the Channel Quality Indicator (CQI) in the CSI report is wideband, and the mapping content of the STRP measurement assumption in the CSI report includes the following item or more: CRI, newly defined indication, RI, layer indicator (LI), PMI and CQI;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes one or more of the following: one or more CRIs, a newly defined indication field, and one or more RIs , one or more LIs, one or more PMIs, one or more CQIs;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes: a first part (part1) and a second part (part2);
- the first part includes one or more of the following: a CRI, a newly defined indication, multiple RIs, an LI, a PMI, a CQI;
- the second part includes one or more of the following: an LI , one PMI, one CQI;
- the first part includes one or more of the following: multiple CRIs, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, a CQI;
- the first part includes one or more of the following: one CRI, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, one CQ;
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularity in the CSI report are subbands, and the mapping content of the STRP measurement assumption in the CSI report includes a first part, a second part and a third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, an RI, a wideband CQI for first TB, a wideband CQI for first TB, a Subband channel quality indicator (subband CQI for first TB), a non-zero wideband magnitude coefficient;
- the second part includes one or more of the following: wideband channel quality indicator (wideband CQI for second TB) for the second transport block , an LI, a wideband precoding matrix indication (wideband PMI);
- the third part includes one or more of the following: an even-numbered subband channel quality indication (even-numbered subband CQI for second TB) of the second transport block, an even-numbered subband CQI for second TB Subband precoding matrix indication (even subband PMI), odd subband channel quality indication of the second transport block (odd subband CQI for second TB), odd subband precoding matrix indication (odd subband PMI);
- the first part includes one or more of the following: a CRI, an RI, a wideband channel quality indicator (wideband CQI for first TB) of the first transport block, a subband channel quality indicator (subband CQI of the first transport block) for first TB), non-zero wideband amplitude coefficients;
- the second part includes one or more of the following: wideband channel quality indication (wideband CQI for second TB) of the second transport block, one LI, one subband precoding matrix indication (wideband PMI);
- the third part includes one or more of the following: an even-numbered subband channel quality indication (even-numbered subband CQI for second TB) of the second transport block, an even-numbered subband precoding matrix indication (even-numbered subband precoding matrix indication) subband PMI), odd subband channel quality indication of the second transport block (odd subband CQI for second TB), odd subband precoding matrix indication (odd subband PMI);
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularity in the CSI report are subbands, and the mapping content of the NCJT measurement false in the CSI report includes the first part, the second part and the third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, one or more RIs, a wideband CQI for first TB, a wideband CQI for first TB, a subband channel quality indicator (subband CQI for first TB), one or more non-zero wideband magnitude coefficients;
- the second part includes one or more of the following: wideband channel quality indicator (wideband CQI for the second transport block) second TB), one or more LIs, one or more wideband precoding matrix indications (wideband PMI), wideband channel quality indications for multiple transport blocks;
- the third part includes one or more of the following: a second Even-numbered sub-band CQIs for transport blocks, multiple even-numbered sub-band precoding matrix indications, multiple even-numbered sub-band CQIs for second transport blocks, multiple odd-numbered sub-band CQIs for second transport blocks, multiple odd subband precoding matrix indication, odd subband channel quality indication of the first transport block, odd subband channel quality indication of
- the first part includes one or more of the following: one or more CRIs, one or more RI fields, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, one or more a plurality of non-zero wideband magnitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, a plurality of wideband precoding matrix indications, a first transmission The wideband channel quality indicator of the block, the wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, a plurality of even subband codes matrix indication, even subband CQI for the first transport block, even subband CQI for the second transport block, an even subband coding matrix indication, odd subband CQI for the second transport block, Multiple odd-numbered subband coding matrix indications, and odd-numbered subband channel quality indications of multiple transport blocks;
- the first portion includes one or more of the following: CRI, one or more RIs, a wideband channel quality indicator for the first transport block, a subband channel quality indicator for the first transport block, one or more non-zero wideband Amplitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for a plurality of second transport blocks, one or more LIs, one or more wideband precoding matrix indications, a first transport block The wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, one or more even wideband precoding matrices indication, subband channel quality indication for the first transport block, subband channel quality indication for the second transport block, odd subband channel quality indication for multiple second transport blocks, one or more odd wideband precoding matrix indications , the odd-numbered subband channel quality indication of the first transport block.
- the CSI report includes one or more of the following:
- the transmission priority of each CSI report in the multiple CSI reports includes one or more of the following:
- the CSI report of MTRP has a higher priority than the CSI report of non-MTRP;
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the transmission priority of the joint transmission measurement hypothesis is higher than the transmission priority of the STRP measurement hypothesis
- the joint transmission measurement hypothesis broadband information and the TRP measurement hypothesis broadband information have a higher transmission priority than the joint transmission measurement hypothesis subband information and the TRP measurement hypothesis subband information.
- the mapping sequence needs to match the sequence of CRIs or CMRs indicated by the CRIs;
- CRI0 is defined as CMR1 and CMR2 (a pair of CMRs associated with joint transmission measurement assumptions), then the mapping sequence is to first map RI, PMI, LI related to CMR1, and then map RI, PMI, LI related to CMR2;
- CRI0 is defined as CMR1 in CMR1 and CMR2 (a pair of CMRs associated with joint transmission measurement assumptions), then the mapping sequence is to first map RI, PMI, LI related to CMR1, and then map RI, PMI, LI related to CMR2 .
- the terminal can report the content of one or more measurement assumptions among multiple measurement assumption types to the network side device through the first field in the CSI report, which reduces the feedback overhead of the CSI report, and can improve the Good support for MTRP transport.
- the UE When the high-level signaling configures the UE to select the optimal measurement hypothesis for reporting, and CMR0 and CMR1 are configured in the CSI reporting setting, if the UE selects an STRP measurement hypothesis corresponding to CMR0 for reporting, the UE can report the measurement by using the CSI report.
- the CRI field of the CSI report is set to CRI0 to inform the base station that the CSI report corresponds to a STRP measurement hypothesis; if the UE selects an NCJT measurement hypothesis corresponding to CMR0 and CMR1 to report, the UE can set the CRI field of the CSI report to CRI2 to inform the base station of this
- the CSI report corresponds to an NCJT measurement hypothesis.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the UE When the high-level signaling configures the UE to select the optimal measurement hypothesis for reporting, and CMR0 and CMR1 are configured in the CSI reporting setting, if the UE selects a STRP measurement hypothesis corresponding to CMR0 to report, the UE can set the measurement hypothesis in the CRI field of the CSI report.
- the CRI field of the CSI report is set to CRI0 or CRI1 and the NCJT indication field of the CSI report is set to 1 to inform the base station that the CSI report corresponds to an NCJT measurement hypothesis.
- the high-level signaling configures the UE to report 2 STRP measurement hypotheses and 1 NCJT measurement hypotheses, and CMR0 and CMR1 are configured in the CSI reporting setting
- there are 3 RI-related fields in the CSI report and the first RI field corresponds to the CMR0 association A STRP measurement hypothesis
- the second RI field corresponds to CMR1 associated with a STRP measurement hypothesis
- the third RI field corresponds to CMR0 and CMR1 corresponds to an NCJT measurement hypothesis
- the third RI field indicates that an index value corresponds to a set of rank values, As shown in Table 5.
- the value of the rank indication corresponding to CMR0 is 1, and the value of the rank indication corresponding to CMR1 is 2.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the high-level signaling configures the UE to report the optimal measurement hypothesis and configures CMR0 and CMR1 in the CSI reporting setting
- the RI field indicates that the corresponding CMR0 is associated with a value of the rank indication of a STRP measurement hypothesis.
- the UE indicates by other means that the TRP report content is an NCJT CSI corresponding to CMR0 and CMR1, the RI field indicates a Group rank values, as shown in Table 6.
- the value of the rank indication corresponding to CMR0 is 1, and the value of the rank indication corresponding to CMR1 is 2.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- the high-level signaling configures the UE to report the optimal measurement hypothesis and configures CMR0 and CMR1 in the CSI reporting setting
- there is one RI-related field in the CSI report and the number of STRP transmission ranks that can be supported by CMR0 corresponding to TRP0 is rank 1/2/3 (2bit)
- TRP1 corresponding to CMR1 can support STRP transmission rank number is rank2/3 (1bit)
- TRP0 and TRP1 corresponding to CMR0 and CMR1 support a set of rank indications for NCJT transmission are ⁇ 1,2> and ⁇ 2,2> (1 bit)
- the bitwidth of the RI field corresponding to the CSI report is 2 bits.
- the group of rank indications corresponding to "00" is ⁇ 1,2>
- the group of rank indications corresponding to "01" is ⁇ 2,2>.
- Embodiment 6 is a diagrammatic representation of Embodiment 6
- the high-layer signaling configures the UE to report the optimal 1 STRP measurement hypothesis and the optimal 1 NCJT measurement hypothesis, and CMR0 and CMR1 are configured in the CSI reporting setting, there are 2 fields related to the RI reported by the CSI.
- One RI field corresponds to one STRP measurement hypothesis
- the second RI field corresponds to one NCJT measurement hypothesis
- the value of the STRP transmission rank indication that CMR0 corresponds to TRP0 can support is rank 1/2/3 (2bit)
- CMR1 corresponds to TRP1 that can support STRP
- the number of transmission ranks is rank2/3 (1bit)
- TRP0 and TRP1 corresponding to CMR0 and CMR1 support a set of rank indications for NCJT transmission as ⁇ 1,2> and ⁇ 2,2> (1bit)
- the first corresponding CSI report
- the bitwidth of the RI field is 2 bits
- the bitwidth of the second RI field corresponding to the CSI report is 1 bit.
- an embodiment of the present application provides a CSI feedback apparatus, which is applied to a terminal, and the apparatus 400 includes:
- a first sending module 401 configured to feed back one or more CSI reports to a network-side device, where a first field in the CSI report represents a first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a natural number; or the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses.
- the bit width of the RI field is Determined based on one or more of the following:
- bit width length corresponding to the number of rank indications allowed for single TRP transmission
- bit width length corresponding to the number of rank indications allowed for joint transmission
- the number of all rank indications supported by the terminal may be understood as the number of rank indications supported by the terminal for single TRP transmission, and/or the number of rank indications supported for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- the first value including: 0, or or or or or
- the second value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations;
- the third value includes: 0 or where NRI represents the number of all supported rank indications or rank indication combinations;
- the bit width of the RI field is a first value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to one rank indication
- the preceding The bit corresponds to a rank indication of the first TRP, the previous after bits
- the bit corresponds to a rank indication of the Nth TRP; or the preamble of the RI field
- the bit corresponds to a rank indication of the first TRP, and the last part of the RI field
- the bit corresponds to a rank indication of the NTRPth;
- the bit width of the RI field is the second value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to a rank indication
- the first measurement hypothesis is Joint transmission measurement hypothesis
- one code point in the RI field corresponds to a set of rank indications
- one code point of the RI field corresponds to one rank indication or a group of rank indications.
- the bit width of the CRI field in the CSI report is: Wherein K s represents the number of channel measurement resources associated with the reporting settings, and N represents the number of CMR pairs associated with the reporting settings.
- the apparatus 400 further includes:
- a second sending module configured to send the terminal to the network through the first field in the CSI report when the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses
- the side device indicates that the type of the first measurement hypothesis is the STRP measurement hypothesis or the joint transmission measurement hypothesis
- the first field is a CRI field, an RI field or a newly defined indication field.
- the number of RI fields in the CSI report is:
- X RI fields correspond to X STRP measurement hypotheses, and 1 RI field corresponds to 1 joint transmission measurement hypothesis;
- X RI fields correspond to X STRP measurement hypotheses, and 2 RI fields correspond to 1 joint transmission measurement hypothesis;
- 1 RI field corresponds to X STRP measurement hypotheses
- 1 RI field corresponds to 1 joint transmission measurement hypothesis
- the mapping sequence of the joint transmission measurement hypothesis and the STRP measurement hypothesis in the RI field includes: The joint transmission measurement assumption takes precedence over the STRP measurement assumption, or the STRP measurement assumption takes precedence over the joint transmission measurement assumption.
- the first RI field corresponds to one joint transmission measurement hypothesis
- the bit width of the first RI field is based on one of the following Item or multiple determinations:
- bit width length corresponding to the number of rank indications allowed for joint transmission
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the first RI field is one of the following:
- the fourth value includes: 0 or or or or or or
- the fifth value includes: 0 or or or ),or or where N RI_jt represents the number of all supported rank indication combinations.
- the bit width of the first RI field is a fourth value
- the first RI field The bit corresponds to a rank indication of the first TRP, the previous after the bit
- the bit corresponds to a rank indication of the NTRP;
- the bit corresponds to a rank indication of the first TRP, and the last bit of the first RI field The bit corresponds to a rank indication of the second TRP;
- bit width of the first RI field is a fifth value
- one code point of the first RI field corresponds to a set of rank indications
- N is greater than or equal to 2.
- the second RI field corresponds to one STRP measurement hypothesis
- the first RI field corresponds to one STRP measurement hypothesis.
- the bit width of the two RI fields is determined according to one or more of the following:
- the length of the bit width corresponding to the number of rank indications allowed for STRP transmission.
- the bit width of the second RI field is a sixth value
- the sixth value includes: 0 or or or or or or
- N is greater than or equal to 2.
- the bit width of the RI field is determined according to one or more of the following:
- bit width length corresponding to the number of rank indications allowed by STRP transmission
- the bit width length corresponding to the number of rank indications allowed for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- a seventh value, the seventh value includes: 0 or or or or or or
- the eighth value includes: 0 or or or or or or
- N RI_jt represents the number of all supported rank indication combinations
- N is greater than or equal to 2.
- the apparatus 400 further includes:
- a first receiving module configured to receive high-layer signaling, where the high-layer signaling is used to limit the first field in the CSI report, wherein the high-layer signaling is in one-to-one correspondence with TRP, or the high-layer signaling Signaling has a mapping relationship with CMRs or CMR groups.
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the granularity of PMI and CQI in the CSI report is wideband, and the mapping content of the STRP measurement assumption in the CSI report includes one or more of the following: CRI, newly defined indication, RI, LI, PMI, and CQI;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes one or more of the following: one or more CRIs, a newly defined indication field, and one or more RIs , one or more LIs, one or more PMIs, one or more CQIs;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes: a first part and a second part;
- the first part includes one or more of the following: a CRI, a newly defined indication, multiple RIs, an LI, a PMI, and a CQI;
- the second part includes one or more of the following: an LI , one PMI, one CQI;
- the first part includes one or more of the following: multiple CRIs, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, a CQI;
- the first part includes one or more of the following: one CRI, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, one CQI;
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularity in the CSI report are subbands, and the mapping content of the STRP measurement assumption in the CSI report includes a first part, a second part and a third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, an RI, a wideband channel quality indication of the first transport block, a subband channel quality indication of the first transport block, a non-zero wideband magnitude coefficient;
- the second part includes one or more of the following: a wideband channel quality indication of the second transport block, an LI, a wideband precoding matrix indication;
- the third part includes one or more of the following Multinomial: channel quality indicator for even subbands, precoding matrix indicator for even subbands for the second transport block, channel quality indicator for odd subbands for the second transport block, precoding matrix indicator for odd subbands;
- the first part includes one or more of the following: a CRI, an RI, a wideband channel quality indication of the first transport block, a subband channel quality indication of the first transport block, and a non-zero wideband amplitude coefficient;
- the second part includes one or more of the following: the wideband channel quality indication of the second transport block, an LI, and a subband precoding matrix indication;
- the third part includes one or more of the following: the second transport block The even-numbered subband channel quality indicator, the even-numbered subband precoding matrix indicator, the odd-numbered subband channel quality indicator of the second transport block, and the odd-numbered subband precoding matrix indicator;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are subbands, and the mapping content of the NCJT measurement false in the CSI report includes the first part, the second part and the third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, one or more RIs, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, a or more non-zero wideband magnitude coefficients;
- the second part includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, one or more wideband precoding matrix indications, multiple The wideband channel quality indication of the transport blocks;
- the third part includes one or more of the following: an even-numbered subband channel quality indication of the second transport block, a plurality of even-numbered subband precoding matrix indications, a plurality of second transmission blocks even subband CQI for the block, odd subband CQI for multiple second transport blocks, multiple odd subband precoding matrix indications, odd subband CQI for the first transport block, second transport block
- the odd subband channel quality of the block refers to;
- the first portion includes one or more of the following: one or more CRIs, one or more RI fields, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, one or more a plurality of non-zero wideband magnitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, a plurality of wideband precoding matrix indications, a first transmission The wideband channel quality indicator of the block, the wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, a plurality of even subband codes matrix indication, even subband CQI for the first transport block, even subband CQI for the second transport block, an even subband coding matrix indication, odd subband CQI for the second transport block, Multiple odd-numbered subband coding matrix indications, and odd-numbered subband channel quality indications of multiple transport blocks;
- the first portion includes one or more of the following: CRI, one or more RIs, a wideband channel quality indicator for the first transport block, a subband channel quality indicator for the first transport block, one or more non-zero wideband Amplitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for a plurality of second transport blocks, one or more LIs, one or more wideband precoding matrix indications, a first transport block
- the third part includes one or more of the following: the even-numbered subband channel quality indicator of the second transport block, one or more even-numbered wideband precoding matrix indicator, subband channel quality indicator for the first transport block, subband channel quality indicator for the second transport block, odd subband channel quality indicator for multiple second transport blocks, one or more odd wideband precoding matrices Indication, odd subband channel quality indication for the first transport block.
- the CSI report includes one or more of the following:
- At least part of the STRP measures the assumed mapping content.
- the device further includes:
- a determining module configured to include in the multiple CSI reports: when multiple TPR CSI reports are used, the terminal determines the transmission priority of the CSI reports in the multiple CSI reports, and the CSI content in the multiple TPR CSI reports one or more of the transmission priorities of ;
- the CSI content in the multi-TPR CSI report includes one or more of the following: CSI content corresponding to the joint transmission measurement hypothesis, CSI content corresponding to the STRP measurement hypothesis, joint transmission measurement hypothesis broadband information, TRP measurement hypothesis broadband information, Joint transmission of measurement hypothetical subband information and TRP measurement hypothetical subband information.
- the transmission priority of each CSI report in the multiple CSI reports includes one or more of the following:
- the CSI report priority of MTRP is higher than that of non-MTRP CSI reports;
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the transmission priority of the CSI content in the multi-TPR CSI report includes one or more of the following:
- the transmission priority of the joint transmission measurement hypothesis is higher than the transmission priority of the STRP measurement hypothesis
- the joint transmission measurement hypothesis broadband information and the TRP measurement hypothesis broadband information have a higher transmission priority than the joint transmission measurement hypothesis subband information and the TRP measurement hypothesis subband information.
- the apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 2 and achieve the same technical effect. In order to avoid repetition, details are not repeated here.
- a CSI feedback apparatus is applied to a network side device, and the apparatus 500 includes:
- a second receiving module 501 configured to receive one or more CSI reports, where the CSI reports include a first field corresponding to a first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a positive integer; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses .
- the bit width of the RI field is Determined based on one or more of the following:
- bit width length corresponding to the number of rank indications allowed for single TRP transmission
- bit width length corresponding to the number of rank indications allowed for joint transmission
- the number of all supported rank indications by the terminal may be understood as the number of rank indications supported by the terminal for single TRP transmission, and/or the number of supported rank indications for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- the first value including: 0, or or or or or
- the second value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations;
- the third value includes: 0 or where NRI represents the number of all supported rank indications or rank indication combinations;
- the bit width of the RI field is a first value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to one rank indication
- the preceding The bit corresponds to a rank indication of the first TRP, the previous after bits
- the bit corresponds to a rank indication of the Nth TRP; or the preamble of the RI field
- the bit corresponds to a rank indication of the first TRP, and the last part of the RI field
- the bit corresponds to a rank indication of the NTRPth;
- the bit width of the RI field is the second value
- the first measurement hypothesis is a STRP measurement hypothesis
- one code point in the RI field corresponds to a rank indication
- the first measurement hypothesis is Joint transmission measurement hypothesis
- one code point in the RI field corresponds to a set of rank indications
- one code point of the RI field corresponds to one rank indication or a group of rank indications.
- the bit width of the CRI field in the CSI report is: Wherein K s represents the number of channel measurement resources associated with the reporting settings, and N represents the number of CMR pairs associated with the reporting settings.
- the apparatus 500 further includes:
- a third receiving module configured to obtain the first measurement hypothesis through the first field in the CSI report when the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses Type is STRP Measurement Hypothesis or Joint Transmission Measurement Hypothesis;
- the first field is a CRI field, an RI field or a newly defined indication field.
- the number of RI fields in the CSI report is:
- X RI fields correspond to X STRP measurement hypotheses, and 1 RI field corresponds to 1 joint transmission measurement hypothesis;
- X RI fields correspond to X STRP measurement hypotheses, and 2 RI fields correspond to 1 joint transmission measurement hypothesis;
- 1 RI field corresponds to X STRP measurement hypotheses
- 1 RI field corresponds to 1 joint transmission measurement hypothesis
- the mapping sequence of the joint transmission measurement hypothesis and the STRP measurement hypothesis in the RI field includes: The joint transmission measurement assumption takes precedence over the STRP measurement assumption, or the STRP measurement assumption takes precedence over the joint transmission measurement assumption.
- the first RI field corresponds to one joint transmission measurement hypothesis
- the bit width of the first RI field is based on one of the following Item or multiple determinations:
- bit width length corresponding to the number of rank indications allowed for joint transmission
- the number of all rank indications supported by the terminal may be understood as the number of rank indications supported by the terminal for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for joint transmission. Among them, support can also be understood as permission.
- bit width of the first RI field is one of the following:
- the fourth value includes: 0 or or or or or or
- the fifth value includes: 0 or or or or or where N RI_jt represents the number of all supported rank indication combinations.
- the bit width of the first RI field is a fourth value
- the first RI field The bit corresponds to a rank indication of the first TRP, the previous after the bit
- the bit corresponds to a rank indication of the NTRP;
- the bit corresponds to a rank indication of the first TRP, and the last bit of the first RI field The bit corresponds to a rank indication of the second TRP;
- bit width of the first RI field is a fifth value
- one code point of the first RI field corresponds to a set of rank indications
- N is greater than or equal to 2.
- the second RI field corresponds to one STRP measurement hypothesis
- the first RI field corresponds to one STRP measurement hypothesis.
- the bit width of the two RI fields is determined according to one or more of the following:
- the length of the bit width corresponding to the number of rank indications allowed for STRP transmission.
- the bit width of the second RI field is a sixth value
- the sixth value includes: 0 or or or or or or
- N is greater than or equal to 2.
- the bit width of the RI field is determined according to one or more of the following:
- bit width length corresponding to the number of rank indications allowed by STRP transmission
- the bit width length corresponding to the number of rank indications allowed for joint transmission.
- the number of all rank indication combinations supported by the terminal may be understood as the number of rank indication combinations supported by the terminal for single TRP transmission, and/or the number of rank indication combinations supported for joint transmission. Among them, support can also be understood as permission.
- bit width of the RI field is one of the following:
- a seventh value, the seventh value includes: 0 or or or or or or
- the eighth value includes: 0 or or or or or or
- N RI_jt represents the number of all supported rank indication combinations
- N is greater than or equal to 2.
- the apparatus 500 further includes:
- a second sending module configured to send high-layer signaling, where the high-layer signaling is used to limit the first field in the CSI report, wherein the high-layer signaling corresponds to TRP one-to-one, or the high-layer signaling Signaling has a mapping relationship with CMRs or CMR groups.
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the granularity of PMI and CQI in the CSI report is wideband, and the mapping content of the STRP measurement assumption in the CSI report includes one or more of the following: CRI, newly defined indication, RI, LI, PMI, and CQI;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes one or more of the following: one or more CRIs, a newly defined indication field, one or more RIs , one or more LIs, one or more PMIs, one or more CQIs;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are broadband, and the mapping content of the joint transmission measurement assumption in the CSI report includes: a first part and a second part;
- the first part includes one or more of the following: a CRI, a newly defined indication, multiple RIs, an LI, a PMI, a CQI;
- the second part includes one or more of the following: an LI , one PMI, one CQI;
- the first part includes one or more of the following: multiple CRIs, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, a CQI;
- the first part includes one or more of the following: one CRI, multiple RIs, one LI, one PMI, one CQI;
- the second part includes one or more of the following: one LI, one PMI, one CQI;
- the manner in which the STRP measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularity in the CSI report are subbands, and the mapping content of the STRP measurement assumption in the CSI report includes a first part, a second part and a third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, an RI, a wideband channel quality indication of the first transport block, a subband channel quality indication of the first transport block, a non-zero wideband magnitude coefficient;
- the second part includes one or more of the following: a wideband channel quality indication of the second transport block, an LI, a wideband precoding matrix indication;
- the third part includes one or more of the following Multinomial: channel quality indicator for even subbands, precoding matrix indicator for even subbands for the second transport block, channel quality indicator for odd subbands for the second transport block, precoding matrix indicator for odd subbands;
- the first part includes one or more of the following: a CRI, an RI, a wideband channel quality indication of the first transport block, a subband channel quality indication of the first transport block, and a non-zero wideband amplitude coefficient;
- the second part includes one or more of the following: the wideband channel quality indication of the second transport block, an LI, and a subband precoding matrix indication;
- the third part includes one or more of the following: the second transport block The even-numbered subband channel quality indicator, the even-numbered subband precoding matrix indicator, the odd-numbered subband channel quality indicator of the second transport block, and the odd-numbered subband precoding matrix indicator;
- the manner in which the joint transmission measurement hypothesis is mapped to the CSI report includes:
- the PMI and CQI granularities in the CSI report are subbands, and the mapping content of the NCJT measurement false in the CSI report includes the first part, the second part and the third part;
- the first part includes one or more of the following: a CRI, a newly defined indication, one or more RIs, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, a or more non-zero wideband magnitude coefficients;
- the second part includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, one or more wideband precoding matrix indications, multiple The wideband channel quality indication of the transport blocks;
- the third part includes one or more of the following: an even-numbered subband channel quality indication of the second transport block, a plurality of even-numbered subband precoding matrix indications, a plurality of second transmission blocks even subband CQI for the block, odd subband CQI for multiple second transport blocks, multiple odd subband precoding matrix indications, odd subband CQI for the first transport block, second transport block
- the odd subband channel quality of the block refers to;
- the first part includes one or more of the following: one or more CRIs, one or more RI fields, a wideband channel quality indication for the first transport block, a subband channel quality indication for the first transport block, one or more a plurality of non-zero wideband magnitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for the second transport block, one or more LIs, a plurality of wideband precoding matrix indications, a first transmission The wideband channel quality indicator of the block, the wideband channel quality indicator of the second transport block;
- the third part includes one or more of the following: the even subband channel quality indicator of the second transport block, a plurality of even subband codes matrix indication, even subband CQI for the first transport block, even subband CQI for the second transport block, an even subband coding matrix indication, odd subband CQI for the second transport block, Multiple odd-numbered subband coding matrix indications, and odd-numbered subband channel quality indications of multiple transport blocks;
- the first portion includes one or more of the following: CRI, one or more RIs, a wideband channel quality indicator for the first transport block, a subband channel quality indicator for the first transport block, one or more non-zero wideband Amplitude coefficients;
- the second portion includes one or more of the following: a wideband channel quality indication for a plurality of second transport blocks, one or more LIs, one or more wideband precoding matrix indications, a first transport block
- the third part includes one or more of the following: the even-numbered subband channel quality indicator of the second transport block, one or more even-numbered wideband precoding matrix indicator, subband channel quality indicator for the first transport block, subband channel quality indicator for the second transport block, odd subband channel quality indicator for multiple second transport blocks, one or more odd wideband precoding matrices Indication, odd subband channel quality indication for the first transport block.
- the CSI report includes one or more of the following:
- At least part of the STRP measures the assumed mapping content.
- the transmission priority of each CSI report in the multiple CSI reports includes one or more of the following:
- the CSI report priority of MTRP is higher than that of non-MTRP CSI reports;
- the CSI reporting priority of MTRP is higher than that of non-MTRP CSI reporting.
- the transmission priority of the CSI content in the multi-TPR CSI report includes one or more of the following:
- the transmission priority of the joint transmission measurement hypothesis is higher than the transmission priority of the STRP measurement hypothesis
- the joint transmission measurement hypothesis broadband information and the TRP measurement hypothesis broadband information have a higher transmission priority than the joint transmission measurement hypothesis subband information and the TRP measurement hypothesis subband information.
- the transmission device in this embodiment of the present application may be a device, a device or an electronic device with an operating system, or a component, an integrated circuit, or a chip in a network-side device.
- the apparatus or electronic device may be a base station, or may be other network side devices.
- the apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 3 , and achieve the same technical effect. To avoid repetition, details are not described here.
- An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is used to feed back one or more CSI reports to a network-side device, where a first field in the CSI report represents a first measurement hypothesis; wherein, The first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a natural number; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses.
- This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG.
- the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, and a display unit 606 , the user input unit 607 , the interface unit 608 , the memory 609 , and at least some of the components in the processor 610 and the like.
- the terminal 600 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 610 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
- a power source such as a battery
- the terminal structure shown in FIG. 6 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
- the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042. Such as camera) to obtain still pictures or video image data for processing.
- the display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 607 includes a touch panel 6071 and other input devices 6072 .
- the touch panel 6071 is also called a touch screen.
- the touch panel 6071 may include two parts, a touch detection device and a touch controller.
- Other input devices 6072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
- the radio frequency unit 601 receives the downlink data from the network side device, and then processes it to the processor 610; in addition, sends the uplink data to the network side device.
- the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
- Memory 609 may be used to store software programs or instructions as well as various data.
- the memory 609 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 609 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
- the processor 610 may include one or more processing units; optionally, the processor 610 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 610.
- the terminal provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not described here.
- Embodiments of the present application further provide a network-side device, including a processor and a communication interface, where the communication interface is configured to receive one or more CSI reports, where the CSI reports include a first field corresponding to a first measurement hypothesis;
- the first measurement hypothesis includes: X STRP measurement hypotheses and 1 joint transmission measurement hypothesis, where X is a positive integer; or, the first measurement hypothesis is one of all STRP measurement hypotheses and joint transmission measurement hypotheses .
- This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
- the network side device 700 includes: an antenna 701 , a radio frequency device 702 , and a baseband device 703 .
- the antenna 701 is connected to the radio frequency device 702 .
- the radio frequency device 702 receives information through the antenna 701, and sends the received information to the baseband device 703 for processing.
- the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702
- the radio frequency device 702 processes the received information and sends it out through the antenna 701 .
- the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 703 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 703 .
- the baseband apparatus 703 includes a processor 704 and a memory 705 .
- the baseband device 703 may include, for example, at least one baseband board on which multiple chips are arranged. As shown in FIG. 7 , one of the chips is, for example, the processor 704 , which is connected to the memory 705 to call a program in the memory 705 to execute The network devices shown in the above method embodiments operate.
- the baseband device 703 may further include a network interface 706 for exchanging information with the radio frequency device 702, and the interface is, for example, a common public radio interface (CPRI for short).
- CPRI common public radio interface
- the network-side device in this embodiment of the present application further includes: instructions or programs that are stored in the memory 705 and run on the processor 704 , and the processor 704 calls the instructions or programs in the memory 705 to execute the modules shown in FIG. 5 .
- Embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a non-volatile storage medium, and the computer program/program product is executed by at least one processor to implement FIG. 2 or the steps of the method of processing described in FIG. 3 .
- An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the method embodiment shown in FIG. 2 or FIG. 3 is implemented. , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
- the processor is the processor in the terminal described in the foregoing embodiment.
- the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
- An embodiment of the present application further provides a chip, where the chip 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 above-mentioned FIG. 3 or FIG. 4 .
- the chip includes a processor and a communication interface
- the communication interface is coupled to the processor
- the processor is used to run a program or an instruction to implement the above-mentioned FIG. 3 or FIG. 4 .
- the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
- An embodiment of the present application provides an electronic device, which is configured to perform each process of each embodiment of the above method, and can achieve the same technical effect. To avoid repetition, details are not repeated here.
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Abstract
Description
| Index | 秩指示 |
| 0 | (1,1) |
| 1 | (1,2) |
| 2 | (2,1) |
| 3 | (2,2) |
| … | … |
| Index | 秩指示 |
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 6 |
| 6 | 7 |
| 7 | 8 |
| 8 | (1,1) |
| 9 | (1,2) |
| 10 | (2,1) |
| 11 | (2,2) |
| 12 | - |
| 13 | - |
| 14 | - |
| 15 | - |
| Index | 秩指示 |
| 0 | (1,1) |
| 1 | (1,2) |
| 2 | (2,1) |
| 3 | (2,2) |
| … | … |
| CRI0 | CRI1 | CRI2 |
| CMR0 | CMR1 | CMR0和CMR1 |
| Index | 一组秩指示 |
| 0 | (1,1) |
| 1 | (1,2) |
| 2 | (2,1) |
| 3 | (2,2) |
| … | … |
| Index | 一组秩指示 |
| 0 | (1,1) |
| 1 | (1,2) |
| 2 | (2,1) |
| 3 | (2,2) |
| … | … |
Claims (30)
- 一种信道状态信息CSI反馈方法,包括:终端向网络侧设备反馈一个或多个CSI报告,所述CSI报告中包括第一测量假设对应的第一域;其中,所述第一测量假设包括:X个单发送接收点STRP测量假设和1个联合传输测量假设,其中X为自然数;或者,所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个。
- 根据权利要求1所述的方法,其中,在所述第一域为秩指示RI域,所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个的情况下,所述RI域的位宽根据以下一项或多项确定:天线端口数量;单TRP传输允许的秩指示的数量对应的位宽长度;联合传输允许的秩指示的数量对应的位宽长度;所述终端所有支持的秩指示的数量;所述终端所有支持的秩指示组合的数量。
- 根据权利要求3所述的方法,其中,在所述RI域的位宽为第一值的情况下,如果所述第一测量假设是STRP测量假设,则所述RI域的一个码点对应一个秩指示;如果所述第一测量假设是联合传输测量假设,则所述RI域的前 比特对应所述第一TRP的一个秩指示,所述前 比特之后 比特对应所述第N TRP的一个秩指示;或者所述RI域的前 比特对应所述第一TRP的一个秩指示,所述RI域的后 比特对应第NTRP的一个秩指示;或者,在所述RI域的位宽为第二值的情况下,如果所述第一测量假设是STRP测量假设,则所述RI域的一个码点对应一个秩指示,如果所述第一测量假设是联合传输测量假设,则所述RI域的一个码点对应一组秩指示;或者,在所述RI域的位宽为第三值的情况下,所述RI域的一个码点对应一个秩指示或者对应一组秩指示。
- 根据权利要求1所述的方法,其中,所述方法还包括:在所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个的情况下,所述终端通过所述CSI报告中所述第一域,向所述网络侧设备指示所述第一测量假设的类型是STRP测量假设或者联合传输测量假设;其中,所述第一域是CRI域,RI域或者新定义的指示域。
- 根据权利要求1所述的方法,其中,在所述第一测量假设包括:X个STRP测量假设和1个联合传输测量假设的情况下,所述CSI报告中RI域的数量为:X+1个,其中X个RI域对应X个STRP测量假设,1个RI域对应1个联合传输测量假设;X+2个,其中X个RI域对应X个STRP测量假设,2个RI域对应1个联合传输测量假设;1个,其中1个RI域对应X个STRP测量假设和1个联合传输测量假设;2个,其中1个RI域对应X个STRP测量假设,1个RI域对应1个联合传输测量假设。
- 根据权利要求7所述的方法,其中,在所述RI域的数量为X+1个或者X+2个的情况下,所述RI域中联合传输测量假设和STRP测量假设的映射顺序包括:所述联合传输测量假设优先于所述STRP测量假设,或者,所述STRP测量假设优先于所述联合传输测量假设。
- 根据权利要求7所述的方法,其中,在所述RI域的数量为X+1个的情况下,第一RI域对应1个联合传输测量假设,所述第一RI域的位宽根据以下一项或多项确定:天线端口数量;联合传输允许的秩指示的数量对应的位宽长度;所述终端所有支持的秩指示的数量;所述终端所有支持的秩指示组合的数量。
- 根据权利要求7所述的方法,其中,在所述RI域的数量为X+1个或者X+2个,且X=1的情况下,第二RI域对应1个STRP测量假设,所述第二RI域的位宽根据以下一项或多项确定:天线端口数量;STRP传输允许的秩指示的数量对应的位宽长度。
- 根据权利要求7所述的方法,其中,在所述RI域的数量为1个的情况下,所述RI域的位宽根据以下一项或多项确定:天线端口数量;STRP传输允许的秩指示的数量对应的位宽长度;所述终端所有支持的秩指示组合的数量;联合传输允许的秩指示的数量对应的位宽长度。
- 根据权利要求1所述的方法,其中,所述方法还包括:接收高层信令,所述高层信令用于限制所述CSI报告中的所述第一域,其中,所述高层信令与TRP一一对应,或者,所述高层信令与CMR或者CMR组具有映射关系。
- 根据权利要求1所述的方法,其中,所述STRP测量假设映射到所述CSI报告的方式包括:所述CSI报告中预编码矩阵指示PMI和信道质量指示CQI颗粒度为宽带,所述CSI报告中STRP测量假设的映射内容包括以下一项或多项:CRI、新定义的指示、RI、层指示LI、PMI和CQI;或者,所述联合传输测量假设映射到所述CSI报告的方式包括:所述CSI报告中PMI和CQI颗粒度为宽带,所述CSI报告中联合传输测量假设的映射内容包括以下一项或多项:一个或多个CRI、新定义的指示域、一个或多个RI、一个或多个LI、一个或多个PMI、一个或多个CQI;或者,所述联合传输测量假设映射到所述CSI报告的方式包括:所述CSI报告中PMI和CQI颗粒度为宽带,所述CSI报告中联合传输测量假设的映射内容包括:第一部分和第二部分;其中,所述第一部分包括以下一项或多项:一个CRI、新定义的指示、多个RI、一个LI、一个PMI、一个CQI;所述第二部分包括以下一项或多项:一个LI、一个PMI、一个CQI;或者,其中,所述第一部分包括以下一项或多项:多个CRI、多个RI、一个LI、一个PMI、一个CQI;所述第二部分包括以下一项或多项:一个LI、一个PMI、一个CQI;或者,其中,所述第一部分包括以下一项或多项:一个CRI、多个RI、一个LI、一个PMI、一个CQI;所述第二部分包括以下一项或多项:一个LI、一个PMI、一个CQI;或者,所述STRP测量假设映射到所述CSI报告的方式包括:所述CSI报告中PMI和CQI颗粒度为子带,所述CSI报告中STRP测量假设的映射内容包括第一部分、第二部分和第三部分;其中,所述第一部分包括以下一项或多项:一个CRI、一个新定义的指示、一个RI、第一个传输块的宽带信道质量指示、第一个传输块的子带信道质量指示、一个非零宽带幅度系数;所述第二部分包括以下一项或多项:第二个传输块的宽带信道质量指示、一个LI、一个宽带预编码矩阵指示;所述第三部分包括以下一项或多项:第二个传输块的偶数子带信道质量指示、偶数子带预编码矩阵指示,第二个传输块的奇数子带信道质量指示,奇数子带预编码矩阵指示;或者,所述第一部分包括以下一项或多项:一个CRI、一个RI、第一个传输块的宽带信道质量指示、第一个传输块的子带信道质量指示、非零宽带幅度系数;所述第二部分包括以下一项或多项:第二个传输块的宽带信道质量指示、一个LI、一个子带预编码矩阵指示;所述第三部分包括以下一项或多项:第二个传输块的偶数子带信道质量指示、偶数子带预编码矩阵指示、第二个传输块的奇数子带信道质量指示、奇数子带预编码矩阵指示;或者,所述联合传输测量假设映射到所述CSI报告的方式包括:所述CSI报告中PMI和CQI颗粒度为子带,所述CSI报告中联合传输测量假设的映射内容包括第一部分、第二部分和第三部分;所述第一部分包括以下一项或多项:一个CRI、新定义的指示、一个或多个RI、第一个传输块的宽带信道质量指示、第一个传输块的子带信道质量 指示、一个或多个非零宽带幅度系数;所述第二部分包括以下一项或多项:第二个传输块的宽带信道质量指示、一个或多个LI、一个或多个宽带预编码矩阵指示、多个传输块的宽带信道质量指示;所述第三部分包括以下一项或多项:第二个传输块的偶数子带信道质量指示、多个偶数子带预编码矩阵指示、多个第二传输块的偶数子带信道质量指示、多个第二传输块的奇数子带信道质量指示、多个奇数子带预编码矩阵指示、第一个传输块的奇数子带信道质量指示、第二个传输块的奇数子带信道质量指;或者,所述第一部分包括以下一项或多项:一个或多个CRI、一个或多个RI域、第一个传输块的宽带信道质量指示、第一个传输块的子带信道质量指示、一个或多个非零宽带幅度系数;所述第二部分包括以下一项或多项:第二个传输块的宽带信道质量指示、一个或多个LI、多个宽带预编码矩阵指示、第一个传输块的宽带信道质量指示、第二个传输块的宽带信道质量指示;所述第三部分包括以下一项或多项:第二个传输块的偶数子带信道质量指示、多个偶数子带编码矩阵指示、第一个传输块的偶数子带信道质量指示、第二个传输块的偶数子带信道质量指示、一个偶数子带编码矩阵指示、第二个传输块的奇数子带信道质量指示、多个奇数子带编码矩阵指示、多个传输块的奇数子带信道质量指示;或者,所述第一部分包括以下一项或多项:CRI、一个或多个RI、第一个传输块的宽带信道质量指示、第一个传输块的子带信道质量指示、一个或多个非零宽带幅度系数;所述第二部分包括以下一项或多项:多个第二个传输块的宽带信道质量指示、一个或多个LI、一个或多个宽带预编码矩阵指示、第一个传输块的宽带信道质量指示、第二个传输块的宽带信道质量指示;所述第三部分包括以下一项或多项:第二传输块的偶数子带信道质量指示、一个或多个偶数宽带预编码矩阵指示、第一个传输块的子带信道质量指示、第二个传输块的子带信道质量指示、多个第二传输块的奇数子带信道质量指示、一个或多个奇数宽带预编码矩阵指示、第一个传输块的奇数子带信道质量指示。
- 根据权利要求17所述的方法,其中,所述CSI报告中包括以下一项 或多项:至少部分联合传输测量假设的映射内容;至少部分STRP测量假设的映射内容。
- 根据权利要求1所述的方法,其中,所述方法还包括:在所述多个CSI报告中包括:多TPR的CSI报告时,所述终端确定所述多个CSI报告中CSI报告的传输优先级,和所述多TPR的CSI报告中CSI内容的传输优先级中的一项或多项;其中,所述多TPR的CSI报告中CSI内容包括以下一项或多项:联合传输测量假设对应的CSI内容、STRP测量假设对应的CSI内容、联合传输测量假设宽带信息、TRP测量假设宽带信息、联合传输测量假设子带信息、TRP测量假设子带信息。
- 根据权利要求19所述的方法,其中,所述多个CSI报告中各个CSI报告的传输优先级,包括以下一项或者多项:对于基于物理上行共享信道PUSCH报告的多个非周期CSI报告,且均为非承载层1参考信号接收功率L1-RSRP或者层1信号与干扰加噪声比L1-SINR,多TRP的CSI报告优先级高于非多TRP的CSI报告;基于PUSCH报告的多个半持续CSI报告,且均为非承载L1-RSRP或者L1-SINR,多TRP的CSI报告优先级高于非多TRP的CSI报告;基于物理上行控制信道PUCCH报告的多个半持续CSI报告,且均为非承载L1-RSRP或者L1-SINR,多TRP的CSI报告优先级高于非多TRP的CSI报告;基于PUCCH报告的多个周期CSI报告,且均为非承载L1-RSRP或者L1-SINR,多TRP CSI报告优先级高于非多TRP的CSI报告。
- 根据权利要求19所述的方法,其中,所述多TPR的CSI报告中CSI内容的传输优先级,包括以下一项或多项:所述联合传输测量假设的传输优先级高于所述STRP测量假设的传输优先级;所述联合传输测量假设宽带信息和TRP测量假设宽带信息的传输优先级高于所述联合传输测量假设子带信息和TRP测量假设子带信息的传输优先级。
- 一种CSI反馈方法,包括:网络侧设备接收一个或多个CSI报告,所述CSI报告中包括第一测量假设对应的第一域;其中,所述第一测量假设包括:X个STRP测量假设和1个联合传输测量假设,其中X为正整数;或者,所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个。
- 一种CSI反馈装置,应用于终端,包括:第一发送模块,用于向网络侧设备反馈一个或多个CSI报告,所述CSI报告中的第一域表示第一测量假设;其中,所述第一测量假设包括:X个STRP测量假设和1个联合传输测量假设,其中X为自然数;或者,所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个。
- 一种CSI反馈装置,应用于网络侧设备,包括:第二接收模块,用于接收一个或多个CSI报告,所述CSI报告中包括第一测量假设对应的第一域;其中,所述第一测量假设包括:X个STRP测量假设和1个联合传输测量假设,其中X为正整数;或者,所述第一测量假设是所有STRP测量假设和联合传输测量假设中的一个。
- 一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至21中任一项所述的方法的步骤。
- 一种网络侧设备,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求22项所述的方法的步骤。
- 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权利要求1至22中任一项所述的方法的步骤。
- 一种芯片,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,实现如权利要求1至22中任一项所述的方法的步骤。
- 一种计算机程序产品,所述计算机程序产品被存储在非易失的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至22中任一项所述的方法的步骤。
- 一种电子设备,被配置为执行如权利要求1至22中任一项所述的方法的步骤。
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| EP22774104.8A EP4319266A4 (en) | 2021-03-23 | 2022-03-16 | Csi feedback method and apparatus, device, and readable storage medium |
| US18/470,629 US20240007166A1 (en) | 2021-03-23 | 2023-09-20 | Csi feedback method and apparatus, device, and readable storage medium |
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| CN202110309794.XA CN115119258B (zh) | 2021-03-23 | 2021-03-23 | Csi反馈方法、装置、设备及可读存储介质 |
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| CN116671154A (zh) * | 2021-04-01 | 2023-08-29 | Oppo广东移动通信有限公司 | 信息处理方法和终端设备 |
| US20250080186A1 (en) * | 2021-05-11 | 2025-03-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Framework and signaling for non-coherent joint transmission (ncjt) channel state information (csi) selection |
| CN118509012A (zh) * | 2023-02-16 | 2024-08-16 | 维沃移动通信有限公司 | Csi发送方法、ue及可读存储介质 |
| US20240334398A1 (en) * | 2023-03-28 | 2024-10-03 | Qualcomm Incorporated | Multiple payload regions |
| CN119449244A (zh) * | 2023-07-31 | 2025-02-14 | 维沃移动通信有限公司 | 信道状态信息csi传输方法、装置和通信设备 |
| CN119496538A (zh) * | 2023-08-14 | 2025-02-21 | 维沃移动通信有限公司 | 信道状态信息上报、接收方法、装置、设备及可读存储介质 |
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| CN115119258A (zh) | 2022-09-27 |
| EP4319266A1 (en) | 2024-02-07 |
| JP7627996B2 (ja) | 2025-02-07 |
| US20240007166A1 (en) | 2024-01-04 |
| EP4319266A4 (en) | 2024-10-23 |
| JP2024512581A (ja) | 2024-03-19 |
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