WO2024146551A1 - 通信方法、装置、系统及计算机相关装置 - Google Patents
通信方法、装置、系统及计算机相关装置 Download PDFInfo
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- WO2024146551A1 WO2024146551A1 PCT/CN2024/070316 CN2024070316W WO2024146551A1 WO 2024146551 A1 WO2024146551 A1 WO 2024146551A1 CN 2024070316 W CN2024070316 W CN 2024070316W WO 2024146551 A1 WO2024146551 A1 WO 2024146551A1
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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
- 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
- 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
- H04L1/0028—Formatting
- H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0094—Indication of how sub-channels of the path are allocated
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Definitions
- each antenna off condition requires the network device to indicate the corresponding CSI configuration. Due to the limitation of terminal capabilities, the number of CSI reporting configurations configured by the network device to the terminal device is limited, resulting in the terminal device being unable to report CSI in various antenna off conditions.
- the first channel state information indicates L channel quality indicators (channel quality indicator, CQI), and the L CQIs correspond to the L CSI-RS resources, and the L CSI-RS resources are respectively associated with the L resource packages.
- CQI channel quality indicator
- the communication method further includes: receiving indication information #A; wherein the indication information #A indicates the X CSI-RS resource combinations.
- the communication method further comprises: sending indication information #C, wherein the indication information #C indicates the first quantity.
- the accuracy of resource allocation can be improved.
- determining the first channel state information based on L CSI-RS resources and A CSI-RS resources includes: determining the first CSI-RS resource based on the A CSI-RS resources in the first resource package; and determining the first channel state information based on a first CSI-RS combination associated with the first CSI-RS resource. In this way, measuring all CSI-RS resources can be avoided, which can improve the effectiveness of the measurement.
- an embodiment of the present application discloses a second communication method, which can be applied to a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device.
- the communication method includes: receiving first indication information; determining second channel state information based on L resource packages out of M resource packages indicated in the first indication information; and sending the second channel state information.
- L is greater than 1
- the second channel state information includes a CQI
- the one CQI corresponds to a second CSI-RS resource
- the second CSI-RS resource is included in the L resource packages.
- the second channel state information also includes at least one of the following items corresponding to the second CSI-RS resource: a PMI, an RI, and an index.
- the CSI-RS resources in at least two of the M resource packages have the same time domain resources and different frequency domain resources; or, the CSI-RS resources in at least two of the M resource packages have the same time-frequency resources. In this way, resources can be saved by configuring the same time domain resources or the same time-frequency resources.
- the frequency domain resources of the CSI-RS resources in at least two resource packages with the same time domain resources and different frequency domain resources may include the following two settings.
- the CSI-RS resources in at least two resource packages may be set in different REs in the same frequency domain resource block.
- the frequency domain resources of the CSI-RS resources in at least two resource packages may be set in different frequency domain resource blocks.
- the communication method further includes: determining a first number, the first number being the number of processing units occupied by the terminal device for calculating the second channel state information on the L CSI-RS resources, the first number being a positive integer less than or equal to L.
- the terminal device can use the spatial correlation between the L CSI-RS resources to determine (calculate) the channel state information, thereby saving calculation time.
- Computing resources such as reducing the occupancy of the processing unit (CSI processing unit).
- the terminal device sends indication information indicating the first quantity.
- the terminal device indicates the value of the first quantity, or the terminal device indicates the value of the first coefficient, where the first quantity is the first coefficient multiplied by L products.
- the L resource packages are associated with B CSI-RS resources
- the communication method further includes: determining a second number; wherein the second number is the number of processing units occupied by the terminal device to calculate the second channel state information corresponding to the L resource packages, and the second number is a positive integer less than B. In this way, using part of the B CSI-RS resources for channel measurement can save computing resources.
- the second number is equal to A+L-1, where A is the number of CSI-RS resources included in the first resource package.
- A is the number of CSI-RS resources included in the first resource package.
- the communication method may further include: determining the second channel state information based on L CSI-RS resources and A CSI-RS resources.
- the A CSI-RS resources belong to the first resource package in the L resource packages, and the CSI-RS resources in the first resource package may be predefined, or may be preconfigured by the network device, or may be a reference resource obtained through the configuration information indication of the network device, etc.
- This application does not limit the first resource package. It should be understood that this step can achieve that the second number is less than B, for example, the second number is equal to A+L-1.
- determining the second channel state information based on L CSI-RS resources and A CSI-RS resources includes: determining the first CSI-RS resource based on the A CSI-RS resources in the first resource package; and determining the second channel state information based on a first CSI-RS combination associated with the first CSI-RS resource. In this way, measuring all CSI-RS resources can be avoided, which can improve the effectiveness of the measurement.
- an embodiment of the present application discloses a third communication method, which can be applied to a terminal device, or a device in a terminal device, or a device that can be used in combination with a terminal device.
- the communication method includes: receiving a second indication information; determining a second quantity based on the second indication information.
- the second indication information indicates B CSI-RS resources
- the CSI-RS resources include time-frequency resources.
- the second quantity is the number of CSI processing units occupied by calculating the channel state information, and the second quantity is a positive integer less than B, and the CSI-RS resources include time-frequency resources. In this way, the number of CSI processing units occupied by channel measurements can be reduced, unnecessary measurements can be avoided, and reporting resource overhead can be saved.
- the B CSI-RS resources are CSI-RS resources included in C CSI-RS resource combinations. In this way, channel measurement can be performed in units of CSI-RS resource combinations.
- the CSI-RS resources in the CSI-RS resource combination have spatial correlation, the spatial correlation between the CSI-RS resources can also be used to reduce the complexity of determining (calculating) the channel information.
- the numbers of CSI-RS resources between two CSI-RS resource combinations among the B CSI-RS resources are equal or unequal.
- the communication method may further include: determining C CSI-RS resource combinations associated with B CSI-RS resources.
- the communication method may further include: receiving indication information #D.
- the indication information #D is used to indicate C CSI-RS resource combinations.
- the indication information #D may be carried in the same signaling as the second indication information. In this way, B CSI-RS resources and C CSI-RS resource combinations may be indicated in the same indication information, which is conducive to saving configuration resources.
- the communication method may further include: receiving indication information #E.
- the indication information #E is used to indicate the configuration of the CSI-RS resource combination, which may be a division method of the CSI-RS resource combination, or an association relationship between CSI-RS resources and CSI-RS resource combinations, etc.
- C CSI-RS resource combinations associated with B CSI-RS resources can be determined based on the indication information #E.
- the indication information #E can be carried in the same signaling as the second indication information. In this way, B CSI-RS resources and C CSI-RS resource combinations associated with the B CSI-RS resources can be indicated in the same indication information, which is beneficial to saving configuration resources.
- the C CSI-RS resource combinations include a fifth CSI-RS resource combination
- the fifth CSI-RS resource combination includes a fifth CSI-RS resource and a sixth CSI-RS resource
- the number of ports of the fifth CSI-RS resource is less than the number of ports of the sixth CSI-RS resource
- the time-frequency resources included in the fifth CSI-RS resource are included in the time-frequency resources included in the second CSI-RS resource.
- the B CSI-RS resources include C reference resources, the C reference resources belong to the C CSI-RS resource combinations respectively, and at least one CSI-RS resource among the B CSI-RS resources other than the C reference resources and the first CSI-RS resource combination does not occupy a CSI processing unit. In this way, it is possible to avoid performing channel measurement on all CSI-RS resources among the B CSI-RS resources other than the C reference resources and the first CSI-RS resource combination, thereby saving resources.
- the B CSI-RS resources include C reference resources, the C reference resources belong to the C CSI-RS resource combinations respectively, and the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources do not occupy the CSI processing unit. That is to say, the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources are not used for channel measurement, which can further save resources.
- the second number is equal to C+E-1; the number of CSI-RS resources in each CSI-RS resource combination in the C CSI-RS resource combination is the same, and E is the number of CSI-RS resources in the first CSI-RS resource combination; or E is the number of CSI-RS resources in the C CSI-RS resource combination.
- the communication method may further include: sending channel state information.
- the channel state information includes the index of the first CSI-RS resource combination, or the channel state information includes the index of a CSI-RS resource in the first CSI-RS resource combination.
- the channel state information includes an index of the first CSI-RS resource combination, or the channel state information includes an index of a CSI-RS resource in the first CSI-RS resource combination.
- the channel state information includes at least one of the following: one or L CQIs, one or L PMIs, and one or L RIs.
- the L CQIs correspond to L CSI-RS resources
- the L PMIs correspond to L CSI-RS resources
- the L RIs correspond to L CSI-RS resources
- the L CSI-RS resources are CSI-RS resources included in the first CSI-RS resource combination
- the first CSI-RS resource combination includes a first CSI-RS resource
- the one CQI corresponds to the first CSI-RS resource
- the one PMI corresponds to the first CSI-RS resource
- the one RI corresponds to the first CSI-RS resource.
- the time-frequency resources of any one of the L-1 CSI-RS resources are included in the time-frequency resources of the second CSI-RS resources.
- the ports included in any one of the L-1 CSI-RS resources are a subset of the ports included in the second CSI-RS resource.
- L PMIs correspond to L CSI-RS resources
- L RIs correspond to L CSI-RS resources
- the L CSI-RS resources include the second CSI-RS resource and L-1 third CSI-RS resources
- one PMI corresponds to the second CSI-RS resource
- one RI corresponds to the second CSI-RS resource.
- L PMIs correspond to L power control offsets of the second CSI-RS resource
- L RIs correspond to L power control offsets of the second CSI-RS resource
- one PMI corresponds to one power control offset (e.g., the largest power control offset, or the first power control offset) of the L power control offsets of the second CSI-RS resource
- one RI corresponds to one power control offset (e.g., the largest power control offset, or the first power control offset) of the L power control offsets of the second CSI-RS resource.
- resource allocation can be optimized, the accuracy of reporting CSI is improved, and the effect of data scheduling on the network side is beneficial.
- At least one of the CSI-RS resources among the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination does not belong to an activated CSI-RS resource (Active CSI-RS resource), and the CSI-RS port of at least one of the CSI-RS resources among the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination does not belong to an activated CSI-RS port (Active CSI-RS port).
- the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources do not belong to Active CSI-RS resource
- the CSI-RS ports of the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources do not belong to Active CSI-RS port.
- the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources are not used as Active CSI-RS resources for channel measurement
- the CSI-RS ports corresponding to the CSI-RS resources other than the C reference resources and the first CSI-RS resource combination among the B CSI-RS resources are not used as Active CSI-RS ports for channel measurement, which can further save resources.
- the first channel state information indicates L CQIs, specifically including: the first channel state information includes L first CQIs; wherein the L first CQIs correspond one-to-one to the L CSI-RS resources; or, the first channel state information includes a second CQI and L-1 CQI differential values; wherein the second CQI corresponds to a first CSI-RS resource among the L CSI-RS resources, the CQI differential value is a difference between a third CQI and the second CQI, and the third CQI corresponds to a CSI-RS resource among the L CSI-RS resources except the first CSI-RS resource.
- the CQI differential value is a wideband CQI differential value
- the absolute value of the wideband CQI differential value is greater than or equal to 1
- the absolute value of the wideband CQI differential value is greater than or equal to 2.
- the network device may receive L-1 wideband CQI differential values reported by the terminal device based on an index of the wideband CQI differential value that is predefined or preconfigured by the network device.
- the L first CQIs include: L wideband CQIs corresponding to the L CSI-RS resources; or L wideband CQIs and L subband CQIs corresponding to the L CSI-RS resources; wherein the L subband CQIs include L subband CQIs of the subbands corresponding to the L CSI-RS resources, or include one subband CQI for each subband of the L subbands corresponding to the L CSI-RS resources.
- a second CQI and L-1 CQI differential values may include a wideband CQI and L-1 wideband CQI differential values; or may include a wideband CQI and L-1 wideband CQI differential values, and a subband CQI and L-1 subband CQI differential values corresponding to the first CSI-RS resource.
- the first channel state information also includes: a first RI or L second RIs; wherein the one first RI corresponds to the L CSI-RS resources, and the L second RIs correspond one-to-one to the L CSI-RS resources.
- the second number is equal to A+L-1, where A is the number of CSI-RS resources included in the first resource package.
- the CSI-RS resources in at least two of the M resource packages have the same time domain resources and different frequency domain resources; or, the CSI-RS resources in at least two of the M resource packages have the same time-frequency resources.
- the frequency domain resources of the CSI-RS resources in at least two resource packages with the same time domain resources and different frequency domain resources may include the following two settings.
- the CSI-RS resources in at least two resource packages may be set in different REs in the same frequency domain resource block.
- the frequency domain resources of the CSI-RS resources in at least two resource packages may be set in different frequency domain resource blocks.
- the communication method further includes: sending indication information #B; wherein the indication information #B indicates the L resource packages.
- the communication method also includes: receiving indication information #C; wherein the indication information #C indicates a first quantity, the first quantity is the number of processing units occupied by the terminal device to calculate the second channel state information corresponding to the L CSI-RS resources, and the first quantity is a positive integer less than or equal to L.
- the communication method also includes: receiving indication information indicating the first quantity.
- the L resource packages are associated with B CSI-RS resources
- the communication method also includes: determining a second quantity; wherein the second quantity is the number of processing units occupied by the terminal device to calculate the second channel state information corresponding to the L resource packages, and the second quantity is a positive integer less than B.
- the second number is equal to A+L-1, where A is the number of CSI-RS resources included in the first resource package.
- A is the number of CSI-RS resources included in the first resource package.
- the executor of the fifth aspect can be a network device, and the specific content of the fifth aspect corresponds to the content of the second aspect.
- the corresponding features of the fifth aspect and the beneficial effects achieved can refer to the description of the second aspect. To avoid repetition, the detailed description is appropriately omitted here.
- an embodiment of the present application discloses a sixth communication method, which can be applied to a network device, or a device in a network device, or a device that can be used in conjunction with a network device.
- the following is an example of a network device, and the communication method includes: sending second indication information; wherein the second indication information indicates B CSI-RS resources, and the CSI-RS resources include time-frequency resources.
- the communication method also includes: determining a second number; wherein the second number is the number of CSI processing units occupied for calculating the channel state information, and the second number is a positive integer less than B.
- L PMIs correspond to L power control offsets of the second CSI-RS resource
- L RIs correspond to L power control offsets of the second CSI-RS resource
- one PMI corresponds to one power control offset among the L power control offsets of the second CSI-RS resource.
- FIG7 is an interactive schematic diagram of a fifth communication method provided in an embodiment of the present application.
- FIG8 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
- FIG. 10 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
- the access network device may be an access network (AN)/radio access network (RAN) device, which is composed of multiple AN/RAN nodes.
- the AN/RAN node may include, but is not limited to, an access point (AP), an enhanced nodeB (eNB), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a baseband unit (BBU), a next generation base station (NR nodeB, gNB), a transmission reception point (TRP), a transmission point (TP), or some other access node, such as a wireless relay node, a wireless backhaul node, etc.
- AP access point
- eNB enhanced nodeB
- HNB home base station
- BBU baseband unit
- NR nodeB, gNB next generation base station
- TRP transmission reception point
- TP transmission point
- some other access node such as a wireless relay node, a wireless backhaul node, etc.
- the AN/RAN node may be a wireless controller in a cloud radio access network (CRAN) scenario, or may be an open access network (open RAN, O-RAN or ORAN), or may be a base station in a communication system evolved after 5G, for example, an xNodeB in a 6G communication system, or may be an access network device in a PLMN network evolved after 5G, etc., without limitation herein.
- CRAN cloud radio access network
- O-RAN open access network
- ORAN open access network
- base station in a communication system evolved after 5G, for example, an xNodeB in a 6G communication system, or may be an access network device in a PLMN network evolved after 5G, etc., without limitation herein.
- the terminal device or network device includes a hardware layer, an operating system layer running on the hardware layer, and an operating system layer running on the hardware layer.
- the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
- the operating system can be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system.
- the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
- the embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided in the embodiments of the present application.
- the execution subject of the method provided in the embodiments of the present application can be a terminal device or a network device, or a functional module in a terminal device or a network device that can call and execute a program.
- network devices and terminal devices included in the network architecture shown in Figure 1 are merely examples, and the embodiments of the present application are not limited to this.
- more or fewer terminal devices that communicate with network devices may also be included.
- more or fewer core network devices that communicate with network devices may also be included.
- they are not described one by one in the accompanying drawings.
- the application scenario may not be limited to including network devices and terminal devices, for example, it may also include devices for carrying virtualized network functions, etc. These are obvious to those skilled in the art and will not be repeated here.
- the time-frequency resources corresponding to different antenna ports may be the same or different.
- the reference signal transmitted by the network device through antenna port A can be used by the terminal device to estimate the characteristics of the wireless channel from antenna port A to the terminal device, and the characteristics of the wireless channel can be used by the terminal device to estimate the physical channel transmitted through antenna port A, or to determine the modulation order, code rate and other information during data transmission.
- One reference signal may correspond to one or more antenna ports, which means that one reference signal may be transmitted through one or more antenna ports.
- Channel state information which is used to characterize signal attenuation and interference.
- wireless signals In the process of wireless signals from the transmitter to the receiver through the wireless channel, they may experience scattering, reflection, and energy attenuation with distance, resulting in attenuation.
- wireless signals may be interfered with by other signals at the receiver, thus affecting the reception of wireless signals. Therefore, CSI can be used to characterize channel characteristics, which is conducive to improving the efficiency of resource allocation of network equipment.
- the reference signal may be a CSI-RS.
- the reference signal resource may be a CSI-RS resource.
- the CSI-RS resources in the resource package, the CSI-RS resource set and the CSI-RS resource combination may be predefined or obtained through network configuration.
- the following is an example of how to divide the CSI-RS resource combination.
- the identifier of each CSI-RS resource corresponds to the identifier of a CSI-RS resource combination, that is, the CSI-RS resources corresponding to the identifier of the same CSI-RS resource combination belong to the same CSI-RS resource combination.
- the network device indicates the CSI-RS resource combination to which each CSI-RS resource belongs.
- the CSI-RS resources corresponding to the index with a numerical relationship are divided into a CSI-RS resource combination.
- the resources with odd indexes belong to resource combination 1
- the resources with even indexes belong to resource combination 2.
- the same number of CSI-RS resources are divided into one CSI-RS resource combination. For example, if CSI-RS resources 0 to CSI-RS resources 3 are divided into one CSI-RS resource combination according to the ascending order of the index, then CSI-RS resource 0 and CSI-RS resource 1 can be divided into one CSI-RS resource combination, and CSI-RS resource 2 and CSI-RS resource 3 can be divided into another CSI-RS resource combination.
- the terminal device will measure and calculate the CSI on each configured CSI-RS resource according to the configured CSI-RS resource. Therefore, the network device needs to meet the following terminal device capabilities when configuring CSI-RS resources:
- the CSI processing capability is the maximum value of the number or quantity of CSI processing units supported by the UE.
- the 3GPP protocol it is used to characterize the upper limit of resources that the terminal device can occupy to process CSI, such as computing resources, storage resources, etc.
- the terminal device will report the maximum number of CSI processing units it can support.
- the maximum number of CSI processing units supported by the terminal device can also be understood as the CSI processing capability of the terminal device. Different terminal devices have different CSI processing capabilities. For example, UE1 will inform the base station that the maximum number of CSI processing units it supports is 10; UE2 will inform the base station that the maximum number of CSI processing units it supports is 15.
- the maximum number of CSI processing units supported here refers to the number of CSI measurements supported simultaneously, which can be the number of CSI measurements supported simultaneously by one carrier, or it can be the number of CSI measurements supported simultaneously by all carriers. If the terminal device supports one CSI processing unit, it means that at the same time, the terminal device supports at most one CSI processing unit for CSI measurement.
- the terminal device calculates the CSI of N1 CSI reports based on the number of CSI processing units supported in one CC or all CCs reported by the terminal device and the occupied OFDM symbol (the first OFDM symbol) in which the CSI of N1 CSI reports is calculated.
- the number of CSI processing units determines whether to start calculating the CSI of N1 CSI reports. Specifically, for a given OFDM symbol, the terminal device determines that N2 CSI processing units are already occupied, then the number of unoccupied CSI processing units is NCPU-N2.
- CSI reporting methods may include the following two methods: the first CSI reporting method is conventional CSI reporting, and the second CSI reporting method is enhanced CSI reporting for non-coherent joint transmission (NC-JT) scenarios.
- NC-JT non-coherent joint transmission
- one NZP-CSI-RS-ResourceSet is configured in CSI-ResourceConfig
- one or more NZP-CSI-RS-ResourceSet is configured in CSI-ResourceConfig.
- One NZP-CSI-RS-ResourceSet may include one or more non-zero power CSI-RS resources (NZP-CSI-RS-resource), and the number of ports of the one or more NZP-CSI-RS-resources may be the same.
- the terminal device determines the content of the CSI report according to the configuration information of the network device. For example, if the configuration information of the base station instructs the UE to report ‘cri-CQI-PMI-RI’, the UE reports a CRI, CQI, PMI and RI.
- the terminal device calculates the number of active CSI-RS resources and active CSI-RS ports, if an active CSI-RS resource is referenced or associated N times by one or more CSI reports, the active CSI-RS resource and the active CSI-RS port within the CSI-RS resource are calculated N times.
- the CSI processing unit occupied by the CSI report is determined based on the number of times its associated CSI-RS resource is used for CSI calculation. For example, a CSI report is associated with two CSI-RS resources, and these two CSI-RS resources belong to different CSI-RS resource groups, and these two CSI-RS Resource pairing is used for CSI calculation under multiple TRPs. At the same time, the two CSI-RS resources can also be used for CSI calculation under a single TRP. Therefore, the number of CSI processing units occupied by the CSI report is 3. It can be seen that the number of CSI processing units of the CSI report in the scenario of multiple TRP configuration is greater than the number of CSI-RS resources associated with the CSI report.
- the terminal device cannot report the CSI for various antenna shutdown conditions, and affects the reporting of CSI measurement results for other purposes such as mobility management and beam management.
- the terminal device will report the information of the CSI-RS resources together. For example, when reporting a CQI, due to the different transmit power and antenna gain under different antenna shutdown conditions, the measured CQI results are extremely different. Reporting a CQI cannot determine the CQI under various antenna shutdown conditions, resulting in errors in channel feature identification.
- Step S201 The network device sends first indication information to the terminal device, and correspondingly, the terminal device receives the first indication information from the network device.
- the first indication information indicates M resource packages, and the resource package is associated with one or more CSI-RS resources, and the CSI-RS resources include time-frequency resources.
- the resource package can be a CSI-RS resource set (for example, CSI Resource Set, and CSI Resource Set can be configured by NZP-CSI-RS-ResourceSet), or it can be a CSI-RS resource group, or it can be a CSI resource configuration (for example, CSI-ResourceConfig), etc., which is not limited here.
- the CSI resource configuration includes a second parameter, where the second parameter indicates a first interference measurement resource set, and the M resource packets correspond to the first interference measurement resource set.
- each CSI-RS resource set is associated with 4 CSI-RS resources.
- the 4 CSI-RS resources of the first CSI-RS resource set are CSI-RS resource 0 to CSI-RS resource 3
- the 4 CSI-RS resources of the second CSI-RS resource set are CSI-RS resource 4 to CSI-RS resource 7.
- the CSI resource configuration information includes M second parameters, the M second parameters respectively indicate M first interference measurement resource sets, and the M resource packages respectively correspond to the M first interference measurement resource sets.
- the four interference measurement resources included in the first first interference measurement resource set may be interference measurement resource 0 to interference measurement resource 3
- the four interference measurement resources included in the second first interference measurement resource set may be interference measurement resource 4 to interference measurement resource 7
- the M CSI-RS resource sets corresponding to the M first interference measurement resource sets may include the following examples: CSI-RS resource 0 corresponds to interference measurement resource 0, CSI-RS resource 1 corresponds to interference measurement resource 1, CSI-RS resource 2 corresponds to interference measurement resource 2, CSI-RS resource 3 corresponds to interference measurement resource 3, CSI-RS resource 4 corresponds to interference measurement resource 4, and so on.
- the M CSI-RS resource sets corresponding to the M resource packages may respectively correspond to M second parameters, and the M second parameters are included in one CSI resource configuration, which can improve the flexibility of configuration.
- the CSI resource configuration includes a CSI-RS resource set configuration information (e.g., NZP-CSI-RS-ResourceSetId), the CSI-RS resource set configuration information indicates a CSI-RS resource set (e.g., CSI Resource Set, CSI Resource Set can be configured by NZP-CSI-RS-ResourceSet), the CSI-RS resource set includes one or more CSI-RS resource configuration information (e.g., NZP-CSI-RS-ResourceId), the one or more CSI-RS resource configuration information respectively indicate one or more CSI-RS resources.
- CSI-RS resource set configuration information e.g., NZP-CSI-RS-ResourceSetId
- the CSI-RS resource set configuration information indicates a CSI-RS resource set (e.g., CSI Resource Set, CSI Resource Set can be configured by NZP-CSI-RS-ResourceSet)
- the CSI-RS resource set includes one or more CSI-RS resource configuration information (e.g., NZP-
- the M resource packages are M CSI resource configurations, and each CSI resource configuration corresponds to a CSI-RS Resource set, each CSI-RS resource set can be associated with one or more CSI-RS resources, so that each resource package is associated with one or more CSI-RS resources.
- the first indication information may be carried in RRC signaling.
- the time domain behavior of any one of the one or more CSI-RS resources associated with the M resource packages is periodic, or the time domain behavior of any one of the one or more CSI-RS resources associated with the M resource packages is semi-continuous.
- the frequency domain resource blocks included in the frequency domain resources of any CSI-RS resource among the Q CSI-RS resources are discontinuous, and the frequency domain resource blocks included in the frequency domain resources of any CSI-RS resource among the Q CSI-RS resources are distributed at fixed intervals.
- the fixed interval can be 2 RBs, or the fixed interval can be 4 RBs.
- each of the Q CSI-RS resources can configure the frequency domain resources in a comb-like manner within the bandwidth part, which is more conducive to obtaining more complete channel information in an environment with large frequency selective fading.
- the fixed interval is 2 RBs.
- the frequency domain resource blocks included in CSI-RS resource 0 can be 0, 2, 4, etc., and by analogy, the frequency domain resource blocks included in CSI-RS resource 1 can be 1, 3, 5. And so on.
- the number of CSI-RS resources included in each of the O resource packages is greater than or equal to P. If the number of CSI-RS resources included in each of the O resource packages is P, the CSI-RS resources included in the O resource packages can use overlapping time-frequency resources, which can save time-frequency resources.
- the first state information includes L indexes, a second CQI, L-1 CQI differential values, a first PMI, and L second RIs.
- L second RIs are calculated based on the L CSI-RS resources corresponding to the L indexes, respectively, and the L second RIs correspond to the L CSI-RS resources one-to-one;
- the first PMI is calculated based on the CSI-RS resource l among the L CSI-RS resources corresponding to the L indexes and the second RI corresponding to the CSI-RS resource l, the first PMI corresponds to the first precoding matrix, and the correspondence between the first PMI and the first precoding matrix can be described in TS 38.214.
- the first channel state information can be determined based on L resource packages among the M resource packages indicated in the first indication information, and then the first channel state information is sent.
- L is greater than 1
- the first channel state information indicates L CQIs
- the L CQIs correspond to L CSI-RS resources respectively
- the L CSI-RS resources are associated with L resource packages respectively.
- the first channel state information can be reported based on at least two CSI-RS resources, which can save configuration resources, improve the accuracy of reporting CSI, and benefit the effect of data scheduling on the network side.
- the method may further include: the network device sends indication information #A to the terminal device. Accordingly, the terminal device receives indication information #A from the network device.
- the indication information #A indicates X CSI-RS resource combinations.
- the indication information #A may be carried in the same signaling as the first indication information. In this way, M resource packages and X CSI-RS resource combinations may be indicated in the same indication information, which is beneficial to saving configuration resources.
- the terminal device can use the spatial correlation of the CSI-RS resources in the subsequent process of determining (calculating) the channel state information to reduce the complexity of channel information determination (calculation).
- Step S403 The terminal device determines first channel state information based on L resource packages among M resource packages; wherein the first channel state information indicates L CQIs, the L CQIs correspond to L CSI-RS resources respectively, and the L CSI-RS resources are associated with L resource packages respectively.
- the L CSI-RS resources may belong to one CSI-RS resource combination, for example, the L CSI-RS resources may belong to the first CSI-RS resource group.
- the terminal device can use the spatial correlation between the L CSI-RS resources to determine the channel state information or measure the channel state information.
- the number of processing units occupied by the terminal device to calculate the channel state information is less than the number of CSI-RS resources involved in calculating the channel state information, which reduces the complexity of calculating CSI, such as reducing the number of CSI processing units (CSI processing units) occupied by calculating CSI.
- the first number is the number of processing units occupied by the terminal device to calculate the first channel state information on the L CSI-RS resources, and it can also be understood that the first number is the number of processing units occupied by the terminal device to calculate the first channel state information only on the L CSI-RS resources.
- the terminal device can utilize the spatial correlation of L CSI-RS resources, and when determining the PMI of each CSI-RS resource in the L resources, the terminal device can first determine the PMI of one CSI-RS resource in the L CSI-RS resources, and then determine the PMI of other CSI-RS resources. In this way, the terminal device can reduce the number of times the PMI is traversed or calculated on other CSI-RS resources through the spatial correlation, thereby reducing the complexity of the terminal device calculating the PMI, and thereby reducing the occupation of computing resources.
- the second number is the number of processing units occupied by the terminal device to calculate the first channel state information corresponding to the L resource packages. It can also be understood that the second number is the number of processing units occupied by the terminal device to calculate the first channel state information on the L CSI-RS resources and at least one other CSI-RS resource.
- the L CSI-RS resources and at least one other CSI-RS resource are included in the L CSI-RS resource packages.
- the first resource package can be understood as a resource package for determining the first CSI-RS resource.
- the CSI-RS resources in the first resource package can be predefined, or can be preconfigured by the network device, or can be a reference resource obtained by indicating the configuration information of the network device, etc. This application does not limit the first resource package.
- the first resource package is determined by the indexes of the L resource packages.
- the first resource package is the resource package with the largest or smallest index among the L resource packages.
- the first resource package is determined by the power offset of the CSI-RS resources associated with the L resource packages or the synchronization signal power offset.
- the CSI-RS resources in the first resource package are the CSI-RS resources with the largest or smallest power offset among the L resource packages, or the CSI-RS resources in the first resource package are the CSI-RS resources with the largest or smallest synchronization signal power offset among the L resource packages.
- the terminal can avoid calculating the channel state information of the CSI-RS resources among the B CSI-RS resources except the first resource package and the first CSI-RS resource combination, thereby saving computing resources.
- the communication method shown in FIG. 2 or FIG. 4 may further include: the terminal device determines the first channel state information based on L CSI-RS resources and A CSI-RS resources.
- the A CSI-RS resources belong to the first resource package in the L resource packages, and the description of the first resource package can refer to the above example and will not be repeated here.
- the second number can be less than B, for example, the second number is equal to A+L-1.
- step S403 or the terminal device determines the first channel state information based on L CSI-RS resources and A CSI-RS resources
- the steps may include: the terminal device determines a first CSI-RS resource based on A CSI-RS resources in a first resource package; the terminal device determines first channel state information based on a first CSI-RS combination associated with the first CSI-RS resource.
- determining the first CSI-RS resource based on A CSI-RS resources can be understood as the terminal device occupying A CSI processing units to calculate CSI on A CSI-RS resources, and determining the first CSI-RS resource from the A CSI-RS resources.
- the first CSI-RS resource is the CSI-RS resource with the largest channel quality value, the CSI-RS resource with the largest signal strength value, etc.
- the first CSI-RS resource combination includes L CSI-RS resources, and the L CSI-RS resources include the first CSI-RS resource.
- the CSI-RS resources included in the first resource package can be understood as reference resources for determining the L CSI-RS resources.
- the A CSI-RS resources in the first resource package are measured first, and then the first CSI-RS resource is determined from the A CSI-RS resources, and then the measurement is performed based on the first CSI-RS resource combination including the first CSI-RS resource to obtain the first channel state information including the L CSI-RS resources associated with the reported L CQIs. In this way, it is possible to avoid measuring all CSI-RS resources, which can improve the effectiveness of the measurement.
- the terminal device calculates the CSI based on the L-1 CSI processing units corresponding to the L-1 CSI-RS resources other than the first CSI-RS resource in the first CSI-RS resource combination. In other words, the terminal device calculates the CSI based on the A CSI-RS resources in the first resource package and the L-1 CSI-RS resources other than the first CSI-RS resource in the first CSI-RS resource combination to obtain the first channel state information, where the second number of occupied CSI processing units is equal to A+L-1. In this way, unnecessary measurements can be avoided, and unnecessary CSI processing units can be avoided from being occupied.
- the first resource package includes CSI-RS resource 1 and CSI-RS resource 3. Then, two CSI processing units need to be occupied when measuring the first resource package. If, based on the measurement result of the first resource package, it is determined that the first CSI-RS resource in the first resource package is CSI-RS resource 1, then the first CSI-RS resource combination can be determined as a resource combination including CSI-RS resource 1. Then, the CSI-RS resources other than the first CSI-RS resource in the first CSI-RS resource combination are measured, that is, CSI-RS resource 2 is measured, and the first channel state information can be reported.
- the first channel state information may include the CQI corresponding to CSI-RS resource 1 and CSI-RS resource 2 respectively or one of them.
- the first channel state information may also include the RI, PMI or i1 in PMI corresponding to CSI-RS resource 1 and CSI-RS resource 2 respectively or one of them.
- Step S404 The terminal device sends the first channel state information to the network device.
- the network device receives the first channel state information from the terminal device.
- L resource packages may be L resource packages determined by the terminal device itself, or the L resource packages may be L resource packages among M resource packages specified by the network device.
- the description of step S203 may be referred to, and will not be repeated here.
- the first channel state information may be carried in one CSI reporting instance, and one CSI reporting instance corresponds to one CSI reporting configuration.
- the first channel state information includes an index, which is the index of the first CSI-RS resource combination in the X CSI-RS resource combinations, or may include the index of a CSI-RS resource in the first CSI-RS resource combination.
- the first CSI-RS resource combination may include L CSI-RS resources.
- the QCL relationship between CSI-RS resources included in a CSI-RS resource combination satisfies type D, that is, the receiving spatial domain filters are the same.
- step S203 An example in which the first channel state information indicates L CQIs is as described in step S203, that is, L CSI-RS resources are included in the first CSI-RS resource combination.
- the first channel state information further includes a first PMI or L second PMIs.
- the implementation of the first PMI or the L second PMIs is as described in step S203, that is, the L CSI-RS resources are included in the first CSI-RS resource combination.
- the first channel state information may include the following six examples, where:
- the first channel state information includes an index, L first CQIs, L second PMIs, and L second RIs.
- L second RIs are calculated based on the L CSI-RS resources corresponding to one index, respectively;
- the L second PMIs are calculated based on the L CSI-RS resources corresponding to one index and the L second RIs, respectively;
- the L CQIs are calculated based on the L CSI-RS resources corresponding to one index, the L second RIs, and the L second PMIs, respectively.
- the first state information includes an index, L first CQIs, a first PMI, and a first RI.
- a first RI is calculated based on L CSI-RS resources corresponding to one index. That is, L CSI-RS resources correspond to the same RI; L second PMIs are calculated based on L CSI-RS resources corresponding to one index and the first RI, respectively; and L CQIs are calculated based on L CSI-RS resources corresponding to one index, the first PMI, and the first RI, respectively.
- the first state information includes an index, L first CQIs, a first PMI, and L second RIs.
- L second RIs are calculated based on the L CSI-RS resources corresponding to 1 index, respectively, and the L second RIs correspond to the L CSI-RS resources one by one;
- the first PMI is calculated based on the CSI-RS resource l among the L CSI-RS resources corresponding to 1 index and the second RI corresponding to the CSI-RS resource l.
- the first PMI corresponds to the first precoding matrix, and the correspondence between the first PMI and the first precoding matrix can be described in TS 38.214.
- L-1 CSI-RS resources other than the CSI-RS resource l among the L CSI-RS resources correspond to L-1 second precoding matrices
- CSI-RS resource l' is one of the L-1 CSI-RS resources
- the second precoding matrix l' corresponding to the CSI-RS resource l' is obtained by extracting a column vector from the first precoding matrix, and the number of extracted column vectors is the value of the second RI corresponding to the CSI-RS resource l'.
- the first CQI corresponding to the CSI-RS resource l is calculated based on the second RI corresponding to the CSI-RS resource l, the CSI-RS resource l and the first PMI, and the CSI-RS resource l' is calculated based on the second RI corresponding to the CSI-RS resource l', the CSI-RS resource l' and the second precoding matrix corresponding to the CSI-RS resource l'.
- the first state information includes an index, a second CQI, L-1 CQI differential values, a first PMI, and L second RIs.
- the L second RIs are calculated based on L CSI-RS resources corresponding to 1 index, respectively, and the L second RIs correspond to the L CSI-RS resources one-to-one;
- the first PMI is calculated based on CSI-RS resource l among the L CSI-RS resources corresponding to 1 index and the second RI corresponding to the CSI-RS resource l, the first PMI corresponds to the first precoding matrix, and the correspondence between the first PMI and the first precoding matrix can be described as in TS 38.214.
- step S501 can refer to the relevant description in step S201, which will not be repeated here.
- the CSI-RS resources in at least two of the M resource packages have the same time domain resources and different frequency domain resources; or, the CSI-RS resources in at least two of the M resource packages have the same time-frequency resources. In this way, resources can be saved by configuring the same time domain resources or the same time-frequency resources.
- the communication method further includes: the network device sends indication information #B to the terminal device.
- the terminal device receives indication information #B from the network device.
- the indication information #B indicates the L resource packets. In this way, the second channel state information can be determined based on the specified L resource packets.
- the second channel state information can be determined based on L resource packets among the M resource packets indicated in the first indication information, and then the second channel state information is sent.
- L is greater than 1
- the second channel state information includes a CQI
- the CQI corresponds to the second CSI-RS resource
- the second CSI-RS resource is included in the L resource packets.
- the L CSI-RS resources include B CSI-RS resources
- the L CSI-RS resource packages are resource packages including L CSI-RS resources.
- the communication method shown in FIG5 may also include: the terminal device determines a second number, the second number is the number of processing units occupied by the terminal device to calculate the second channel state information corresponding to the L CSI-RS resource packages, and the second number is a positive integer less than or equal to B.
- the second indication information may be a CSI reporting configuration (eg, CSI-ReportConfig).
- the parameters indicated in the CSI reporting configuration are used to report the CSI in a CSI report.
- the reporting amount of the CSI reporting configuration includes at least one of the following: CQI, PMI, RI.
- the B CSI-RS resources may be included in multiple resource packages.
- the resource packages reference may be made to the foregoing and will not be repeated here.
- the aforementioned X may be less than or equal to C.
- the contents of the CSI-RS resource combination may refer to the description of step S402, which will not be repeated here. In this way, channel measurement may be performed in units of CSI-RS resource combinations.
- the spatial correlation between the CSI-RS resources may also be used to reduce the complexity of determining (calculating) the channel information.
- the C CSI-RS resource combinations include resources in at least one CSI-RS resource combination that satisfy resource nesting.
- the fifth CSI-RS resource combination includes a fifth CSI-RS resource and a sixth CSI-RS resource
- the number of ports of the fifth CSI-RS resource is less than the number of ports of the sixth CSI-RS resource
- the time-frequency resources included in the fifth CSI-RS resource are included in the time-frequency resources included in the sixth CSI-RS resource.
- the fifth CSI-RS resource combination can be any one of the C CSI-RS resource combinations.
- the C reference resources can be understood as the A CSI-RS resources in the aforementioned first resource package, or the C reference resources can be composed of the CSI-RS resource with the largest number of ports in each CSI-RS resource combination in the C CSI-RS resource combinations, or the C reference resources can be composed of the CSI-RS resource with the highest power in each CSI-RS resource combination in the C CSI-RS resource combinations, or the C reference resources can be composed of the CSI-RS resource with the smallest index in each CSI-RS resource combination in the C CSI-RS resource combinations.
- the content of the first CSI-RS resource combination can be referred to above and will not be repeated here.
- CSI-RS resources among the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination do not belong to Active CSI-RS resource
- CSI-RS ports of CSI-RS resources among the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination do not belong to Active CSI-RS port.
- the first CSI-RS resource combination is associated with 2 CSI-RS resources
- the second CSI-RS resource combination is also associated with 2 CSI-RS resources
- E is 2
- the second number is equal to 2+2-1, that is, 3.
- E is the number of CSI-RS resources in the CSI-RS resource combination with the most CSI-RS resources among the C CSI-RS resource combinations.
- the second number of CSI processing units occupied by calculating the channel state information can be determined based on the B CSI-RS resources in the second indication information.
- the second number is a positive integer less than B. In this way, the number of CSI processing units occupied by channel measurement can be reduced, unnecessary measurements can be avoided, and reporting resource overhead can be saved.
- the communication method shown in Fig. 6 may further include a step not shown: the terminal device sends the channel state information to the network device.
- the network device receives the channel state information from the terminal device.
- the channel state information includes an index of a first CSI-RS resource combination among the C CSI-RS resources, or an index of a CSI-RS resource in the first CSI-RS resource combination.
- the content of the first CSI-RS resource combination or the CSI-RS resource combination can be referred to above and will not be repeated here.
- the channel state information includes at least one of the following: one or L CQIs, one or L PMIs, and one or L RIs.
- L CQIs correspond to L CSI-RS resources
- L PMIs correspond to L CSI-RS resources
- L RIs correspond to L CSI-RS resources
- the L CSI-RS resources are CSI-RS resources included in the first CSI-RS resource combination
- the first CSI-RS resource combination includes the first CSI-RS resource
- one CQI corresponds to the first CSI-RS resource
- one PMI corresponds to the first CSI-RS resource
- one RI corresponds to the first CSI-RS resource.
- Figure 7 is an interactive schematic diagram of the fifth communication method provided in an embodiment of the present application.
- the communication method shown in Figure 7 can be understood as an implementation method of the combination of Figure 4 (or Figure 5) and Figure 6.
- the form of the time-frequency resource in Figure 7 may not involve a CSI-RS resource combination, and may not involve a resource package.
- the communication method includes steps S701 to S703, wherein:
- Step S701 The network device sends second indication information to the terminal device, and correspondingly, the terminal device receives the second indication information from the network device, wherein the second indication information indicates B CSI-RS resources, and the CSI-RS resources include time-frequency resources.
- the second CQI and the L-1 CQI differential values correspond to a second CSI-RS resource
- the second CQI and the L-1 CQI differential values correspond to L power control offsets (eg, powercontroloffset) of the second CSI-RS resource.
- the first channel state information after receiving the second indication information, can be determined based on the B CSI-RS resources indicated in the second indication information, and then the first channel state information is sent. And the first channel state information can include a second CQI and L-1 CQI differential values. In this way, resource overhead can be further reduced.
- the CQI differential value is a wideband CQI differential value
- the absolute value of the wideband CQI differential value is greater than or equal to 1, or the absolute value of the wideband CQI differential value is greater than or equal to 2.
- the absolute value of the wideband CQI differential value is greater than 0.
- the transceiver unit 801 is further used to receive indication information #B; wherein the indication information #B indicates the L resource packages.
- the CSI-RS resources in at least two of the M resource packages have the same time domain resources and different frequency domain resources; or, the CSI-RS resources in at least two of the M resource packages have the same time-frequency resources.
- the transceiver unit 801 is further used to receive indication information #B; wherein the indication information #B indicates the L resource packages.
- the transceiver unit 801 is also used to send channel state information; wherein the channel state information includes an index of the first CSI-RS resource combination, or the channel state information includes an index of a CSI-RS resource in the first CSI-RS resource combination.
- the L CQIs correspond to L CSI-RS resources
- the L PMIs correspond to L CSI-RS resources
- the L RIs correspond to L CSI-RS resources
- the L CSI-RS resources are the CSI-RS resources included in the first CSI-RS resource combination
- the first The CSI-RS resource combination includes a first CSI-RS resource, a CQI of the first CSI-RS resource, a PMI of the first CSI-RS resource, and a RI of the first CSI-RS resource.
- the B CSI-RS resources include C reference resources, and the C reference resources belong to the C CSI-RS resource combinations respectively, and at least one CSI-RS resource among the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination does not occupy a CSI processing unit.
- the second number is equal to C+E-1;
- E is the number of CSI-RS resources of the CSI-RS resource combination with the most CSI-RS resources among the C CSI-RS resource combinations.
- the transceiver unit 801 is also used to receive channel state information; wherein the channel state information includes an index of the first CSI-RS resource combination, or the channel state information includes an index of a CSI-RS resource in the first CSI-RS resource combination.
- At least one of the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination does not belong to the activated CSI-RS resources, and the CSI-RS port of at least one of the B CSI-RS resources except the C reference resources and the first CSI-RS resource combination does not belong to the activated CSI-RS port.
- transceiver unit 801 and the processing unit 802 can refer to the relevant description of the method embodiment shown in Figure 2, Figure 4, Figure 5, Figure 6 or Figure 7, which will not be repeated here.
- Figure 9 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.
- the communication device includes, for example, modules, units, elements, circuits, or interfaces, which are appropriately configured together to implement the present solution.
- the communication device can be a RAN node, a terminal, a core network device, or other network device, or a component (such as a chip) in these devices, to implement the method described in the method embodiment.
- the communication device may include one or more processors 111, which may also be referred to as a processing unit, and may implement certain control functions.
- the processor 111 may be a general-purpose processor or a dedicated processor, etc.
- it may be a baseband processor or a central processing unit.
- the baseband processor may be used to process the communication protocol and the communication data
- the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal, a terminal chip, a DU or a CU, etc.), execute the software program, and process the data of the software program.
- the processor 111 may include a program 113 (sometimes also referred to as code or instruction), which may be executed on the processor 111 so that the communication device executes the method described in the method embodiment.
- a program 113 sometimes also referred to as code or instruction
- the processor 111 may include a transceiver unit for implementing the receiving and sending functions.
- the transceiver unit may be a transceiver circuit, or an interface, or an interface circuit, or a communication interface.
- the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
- the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
- the communication device may include a circuit, and the circuit may implement the functions of sending, receiving, or communicating in the aforementioned method embodiments.
- the processor 111 may include an AI module 117, and/or the memory 112 may include an AI module 118.
- the AI module is used to implement AI-related functions.
- the AI module may be implemented by software, hardware, or a combination of software and hardware.
- the AI module may include a RIC module.
- the AI module may be a near real-time RIC or a non-real-time RIC.
- the communication device may further include a transceiver 115 and/or an antenna 116.
- the processor 111 may also be sometimes referred to as a processing unit, which controls the communication device (e.g., a RAN node or a terminal).
- the transceiver 115 may also be sometimes referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which is used to implement the transceiver function of the communication device through the antenna 116.
- the communication device may be a network device, or may be a device in a network device, or may be a device that can be used in conjunction with a network device.
- the processor 111 is used to control the transceiver 115 to perform the operations performed by the transceiver unit 801 in the above embodiment, and the transceiver 115 is also used to receive information from other communication devices outside the communication device.
- the above network device or the device in the network device may also be used to perform any method performed by the network device in the above method embodiments of Figures 2, 4, 5, 6 or 7, which will not be described in detail herein.
- the communication device described in the above embodiments may be a terminal device or a network device, but the scope of the device described in the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 9.
- the device may be an independent device or may be part of a larger device.
- the communication device may be:
- ASIC such as modem (MSM)
- the processor can read the software program in the storage unit, parse and execute the instructions of the software program, and process the data of the software program.
- the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the RF circuit.
- the RF circuit processes the baseband signal to obtain the RF signal and sends the RF signal outward in the form of electromagnetic waves through the antenna.
- the RF circuit receives the RF signal through the antenna, and the RF signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and processes the data.
- FIG10 shows only one memory and processor.
- the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.
- the processor may include a baseband processor and a central processor, the baseband processor is mainly used to process the communication protocol and communication data, and the central processor is mainly used to control the entire terminal device, execute the software program, and process the data of the software program.
- the processor in Figure 10 integrates the functions of the baseband processor and the central processor. It can be understood by those skilled in the art that the baseband processor and the central processor can be independent processors, which are interconnected through technologies such as buses. It can be understood by those skilled in the art that the terminal device may include multiple baseband processors to adapt to different network formats, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses.
- the antenna and control circuit with transceiver functions can be regarded as the transceiver unit of the terminal device 101, and the processor with processing function can be regarded as the processing unit of the terminal device 101.
- the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver device, etc.
- the device used to implement the receiving function in the transceiver unit can be regarded as a receiving unit
- the device used to implement the sending function in the transceiver unit can be regarded as a sending unit, that is, the transceiver unit includes a receiving unit and a sending unit.
- the receiving unit can also be referred to as a receiver, a receiver, a receiving circuit, etc.
- the sending unit can be referred to as a transmitter, a transmitter or a transmitting circuit, etc.
- the above-mentioned receiving unit and the sending unit can be one integrated unit, or can be multiple independent units.
- the above-mentioned receiving unit and the sending unit can be in one geographical location, or can be dispersed in multiple geographical locations.
- the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
- the non-volatile memory may be a hard disk drive (HDD), a solid-state drive (SSD), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
- the volatile memory may be a random access memory (RAM), which is used as an external cache.
- processors mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- the general-purpose processor may be a microprocessor or the processor or may be any conventional processor, etc.
- the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
- the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
- the disclosed systems, devices and methods can be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of units is only a logical function division. There may be other division methods in actual implementation.
- multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
- Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
- the technical solution of the present application or the part that contributes to the technology or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present application.
- the aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.
- the steps in the method of the embodiment of the present application can be adjusted in order, combined and deleted according to actual needs.
- the steps of each embodiment can be partially executed (for example, the terminal device may not execute the steps executed by the terminal device in the above embodiment).
- the execution order of different steps can be changed.
- the embodiments described herein can be combined with other embodiments, different embodiments can be combined with each other, and different steps of different embodiments of this document can be combined.
- “include” may be an inclusion relationship or an equality relationship.
- a includes B which means that A includes B and may also include other contents, or A and B are the same content.
- At least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple.
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Abstract
Description
Claims (92)
- 一种通信方法,其特征在于,包括:接收信道状态信息CSI上报配置;其中,所述CSI上报配置指示M个资源包,所述资源包指示一个或多个信道状态信息参考信号CSI-RS资源,所述M个资源包中的CSI-RS资源包括在CSI-RS资源集合中,所述CSI-RS资源包括时频资源;基于所述M个资源包中的L个资源包确定第一信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别属于所述L个资源包,L大于1;发送所述第一信道状态信息。
- 根据权利要求1所述的通信方法,其特征在于,所述第一信道状态信息指示L个CQI,具体包括:所述第一信道状态信息包括L个第一CQI;其中,所述L个第一CQI与所述L个CSI-RS资源一一对应;或者,所述第一信道状态信息包括一个第二CQI和L-1个CQI差分值;其中,所述第二CQI与所述L个CSI-RS资源中的一个第一CSI-RS资源对应,所述CQI差分值为第三CQI与所述第二CQI的差值,所述第三CQI与所述L个CSI-RS资源中除所述第一CSI-RS资源之外的CSI-RS资源对应。
- 根据权利要求2所述的通信方法,其特征在于,所述CQI差分值为宽带CQI差分值,所述宽带CQI差分值的绝对值大于或者等于1,或者,所述宽带CQI差分值的绝对值大于或者等于2。
- 根据权利要求2所述的通信方法,其特征在于,所述第一CSI-RS资源为所述L个CSI-RS资源中索引最小的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中端口数最大的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中功率偏移量最大的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中同步信号功率偏移量最大的CSI-RS资源;或者,所述第一CSI-RS资源通过网络设备的配置信息指示。
- 根据权利要求1至4中任一项所述的通信方法,其特征在于,所述第一信道状态信息还包括:一个第一预编码矩阵指示PMI或者L个第二PMI;其中,所述一个第一PMI对应所述L个CSI-RS资源,所述L个第二PMI与所述L个CSI-RS资源一一对应。
- 根据权利要求5所述的通信方法,其特征在于,所述L个第一CQI是分别基于所述L个第二PMI确定的;或者,所述第二CQI和所述L-1个CQI差分值是分别基于所述L个第二PMI确定的;或者,所述L个第一CQI是基于所述第一PMI计算得到的;或者,所述第二CQI和所述L-1个CQI差分值是基于所述第一PMI计算得到的。
- 根据权利要求5所述的通信方法,其特征在于,还包括:根据所述L个CSI-RS资源中索引最小的CSI-RS资源确定所述第一PMI;或者,根据所述L个CSI-RS资源中同步信号的功率偏移量最大的CSI-RS资源确定所述第一PMI;或者,根据网络设备指示的所述L个CSI-RS资源中的一个CSI-RS资源确定所述第一PMI。
- 根据权利要求1至7中任一项所述的通信方法,其特征在于,所述第一信道状态信息还包括:一个第一秩指示RI或者L个第二RI;其中,所述一个第一RI对应所述L个CSI-RS资源,所述L个第二RI与所述L个CSI-RS资源一一对应。
- 根据权利要求1至8中任一项所述的通信方法,其特征在于,还包括:确定X个CSI-RS资源组合;其中,所述X个CSI-RS资源组合中每一CSI-RS资源组合包括K个CSI-RS资源,所述K个CSI-RS资源分别关联不同的K个资源包,所述K个资源包包括所述M个资源包。
- 根据权利要求9所述的通信方法,其特征在于,所述第一信道状态信息还包括所述X个CSI-RS资源组合的第一CSI-RS资源组合的索引或者所述第一CSI-RS资源组合中一个CSI-RS资源的索引,所述第一CSI-RS资源组合包括所述L个CSI-RS资源。
- 根据权利要求1-10中任一项所述的通信方法,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 根据权利要求1-11中任一项所述的通信方法,其特征在于,还包括:确定第一数量,所述第一数量为在所述L个CSI-RS资源上计算所述第一信道状态信息所占用的处理 单元的数量,所述第一数量为小于或等于L的正整数。
- 根据权利要求1至11中任一项所述的通信方法,其特征在于,所述L个资源包包括B个CSI-RS资源,所述方法还包括:确定第二数量;其中,所述第二数量为计算所述L个资源包对应的所述第一信道状态信息占用的处理单元的数量,所述第二数量为小于B的正整数。
- 一种通信方法,其特征在于,包括:接收第一指示信息;其中,所述第一指示信息指示M个资源包,所述资源包关联一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;基于所述M个资源包中的L个资源包确定第二信道状态信息;其中,所述第二信道状态信息包括一个信道质量指示CQI,所述CQI与第二CSI-RS资源对应,所述第二CSI-RS资源包含于所述L个资源包中,L大于1;发送所述第二信道状态信息。
- 根据权利要求14所述的通信方法,其特征在于,所述第二信道状态信息还包括所述第二CSI-RS资源对应的以下至少一项:一个预编码矩阵指示PMI,一个秩指示RI,一个索引。
- 根据权利要求14或者15所述的通信方法,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 根据权利要求14至16中任一项所述的通信方法,其特征在于,所述L个资源包关联B个CSI-RS资源,所述方法还包括:确定第二数量;其中,所述第二数量为终端设备计算所述L个资源包对应的第二信道状态信息占用的处理单元的数量,所述第二数量为小于B的正整数。
- 一种通信方法,其特征在于,包括:接收第二指示信息;其中,所述第二指示信息指示B个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;基于所述第二指示信息确定第二数量;其中,所述第二数量为计算信道状态信息占用的CSI处理单元的数量,所述第二数量为小于B的正整数。
- 根据权利要求18所述的通信方法,其特征在于,所述B个CSI-RS资源为C个CSI-RS资源组合包括的CSI-RS资源。
- 根据权利要求19所述的通信方法,其特征在于,所述B个CSI-RS资源中包括C个基准资源,所述C个基准资源分别属于所述C个CSI-RS资源组合,所述B个CSI-RS资源中除所述C个基准资源和第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不占用CSI处理单元。
- 根据权利要求20所述的通信方法,其特征在于,所述第二数量等于C+E-1;所述C个CSI-RS资源组合中每一个CSI-RS资源组合的CSI-RS资源数量相同,E为所述第一CSI-RS资源组合中CSI-RS资源的数量;或者E为所述C个CSI-RS资源组合中包括的CSI-RS资源最多的CSI-RS资源组合的CSI-RS资源的数量。
- 根据权利要求20或21所述的通信方法,其特征在于,还包括:发送所述信道状态信息;其中,所述信道状态信息包括所述第一CSI-RS资源组合的索引,或者所述信道状态信息包括所述第一CSI-RS资源组合中一个CSI-RS资源的索引。
- 根据权利要求20所述的通信方法,其特征在于,所述信道状态信息包括以下至少一项:一个或L个信道质量指示CQI、一个或L个预编码矩阵指示PMI,一个或L个秩指示RI;其中,所述L个CQI对应L个CSI-RS资源、所述L个PMI对应L个CSI-RS资源、所述L个RI对应L个CSI-RS资源,所述L个CSI-RS资源为所述第一CSI-RS资源组合包括的CSI-RS资源,所述第一CSI-RS资源组合包括第一CSI-RS资源,所述一个CQI对应所述第一CSI-RS资源,所述一个PMI对应所述第一CSI-RS资源,所述一个RI对应所述第一CSI-RS资源。
- 根据权利要求20至23中任一项所述的通信方法,其特征在于,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不属于激活CSI-RS资 源;和/或所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源的CSI-RS端口不属于激活CSI-RS端口。
- 一种通信方法,其特征在于,包括:发送CSI上报配置;其中,所述CSI上报配置指示M个资源包,所述资源包指示一个或多个信道状态信息参考信号CSI-RS资源,所述M个资源包中的CSI-RS资源包括在CSI-RS资源集合中,所述CSI-RS资源包括时频资源;接收第一信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别属于L个资源包,所述L个资源包属于所述M个资源包,L大于1。
- 根据权利要求25所述的通信方法,其特征在于,所述第一信道状态信息指示L个CQI,具体包括:所述第一信道状态信息包括L个第一CQI;其中,所述L个第一CQI与所述L个CSI-RS资源一一对应;或者,所述第一信道状态信息包括一个第二CQI和L-1个CQI差分值;其中,所述第二CQI与所述L个CSI-RS资源中的一个第一CSI-RS资源对应,所述CQI差分值为第三CQI与所述第二CQI的差值,所述第三CQI与所述L个CSI-RS资源中除所述第一CSI-RS资源之外的CSI-RS资源对应。
- 根据权利要求26所述的通信方法,其特征在于,所述CQI差分值为宽带CQI差分值,所述宽带CQI差分值的绝对值大于或等于1,或者,所述宽带CQI差分值的绝对值大于或等于2。
- 根据权利要求26所述的通信方法,其特征在于,所述第一CSI-RS资源为所述L个CSI-RS资源中索引最小的CSI-RS资源;或者,所述L个CSI-RS资源中端口数最大的CSI-RS资源;或者,所述L个CSI-RS资源中功率偏移量最大的CSI-RS资源;或者,所述L个CSI-RS资源中同步信号功率偏移量最大的CSI-RS资源;或者,根据网络设备的配置信息确定的CSI-RS资源。
- 根据权利要求25至28中任一项所述的通信方法,其特征在于,所述第一信道状态信息还包括:一个第一预编码矩阵指示PMI或者L个第二PMI;其中,所述一个第一PMI对应所述L个CSI-RS资源,所述L个第二PMI与所述L个CSI-RS资源一一对应。
- 根据权利要求29所述的通信方法,其特征在于,所述L个第一CQI是分别基于所述L个第二PMI确定的;或者,所述第二CQI和所述L-1个CQI差分值是分别基于所述L个第二PMI确定的;或者,所述L个第一CQI是基于所述第一PMI计算得到的;或者,所述第二CQI和所述L-1个CQI差分值是基于所述第一PMI计算得到的。
- 根据权利要求25至30中任一项所述的通信方法,其特征在于,所述第一信道状态信息还包括:一个第一秩指示RI或者L个第二RI;其中,所述一个第一RI对应所述L个CSI-RS资源,所述L个第二RI与所述L个CSI-RS资源一一对应。
- 根据权利要求25至31中任一项所述的通信方法,其特征在于,所述第一信道状态信息还包括X个CSI-RS资源组合的第一CSI-RS资源组合的索引或者所述第一CSI-RS资源组合中一个CSI-RS资源的索引,所述第一CSI-RS资源组合包括所述L个CSI-RS资源,所述X个CSI-RS资源组合中每一CSI-RS资源组合包括K个CSI-RS资源,所述K个CSI-RS资源分别关联不同的K个资源包,所述K个资源包包括所述M个资源包。
- 根据权利要求25至32中任一项所述的通信方法,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 一种通信方法,其特征在于,包括:发送第一指示信息;其中,所述第一指示信息指示M个资源包,所述资源包关联一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;接收第二信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别关联L个资源包,所述L个资源包属于所述M个资源包,L大于1。
- 根据权利要求34所述的通信方法,其特征在于,所述第二信道状态信息还包括所述第二CSI-RS 资源对应的以下至少一项:一个预编码矩阵指示PMI,一个秩指示RI,一个索引。
- 根据权利要求34或35所述的通信方法,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 一种通信方法,其特征在于,包括:发送第二指示信息;其中,所述第二指示信息指示B个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源。
- 根据权利要求37所述的通信方法,其特征在于,还包括:确定第二数量;其中,所述第二数量为计算信道状态信息占用的CSI处理单元的数量,所述第二数量为小于B的正整数。
- 根据权利要求37所述的通信方法,其特征在于,所述B个CSI-RS资源为C个CSI-RS资源组合包括的CSI-RS资源。
- 根据权利要求39所述的通信方法,其特征在于,所述B个CSI-RS资源中包括C个基准资源,所述C个基准资源分别属于所述C个CSI-RS资源组合,所述B个CSI-RS资源中除所述C个基准资源和第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不占用CSI处理单元。
- 根据权利要求40所述的通信方法,其特征在于,所述第二数量等于C+E-1;所述C个CSI-RS资源组合中每一CSI-RS资源组合的CSI-RS资源数量相同,E为所述第一CSI-RS资源组合中CSI-RS资源的数量;或者E为所述C个CSI-RS资源组合中CSI-RS资源最多的CSI-RS资源组合的CSI-RS资源的数量。
- 根据权利要求40或41所述的通信方法,其特征在于,还包括:接收信道状态信息;其中,所述信道状态信息包括所述第一CSI-RS资源组合的索引,或者所述信道状态信息包括所述第一CSI-RS资源组合中一个CSI-RS资源的索引。
- 根据权利要求42所述的通信方法,其特征在于,所述信道状态信息包括以下至少一项:一个或L个信道质量指示CQI、一个或L个预编码矩阵指示PMI,一个或L个秩指示RI;其中,所述L个CQI对应L个CSI-RS资源、所述L个PMI对应L个CSI-RS资源、所述L个RI对应L个CSI-RS资源,所述L个CSI-RS资源为所述第一CSI-RS资源组合包括的CSI-RS资源,所述第一CSI-RS资源组合包括第一CSI-RS资源,所述一个CQI对应所述第一CSI-RS资源,所述一个PMI对应所述第一CSI-RS资源、所述一个RI对应所述第一CSI-RS资源。
- 根据权利要求40至43中任一项所述的通信方法,其特征在于,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不属于激活CSI-RS资源,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源的CSI-RS端口不属于激活CSI-RS端口。
- 一种通信装置,其特征在于,包括:收发单元,用于接收CSI上报配置;其中,所述CSI上报配置指示M个资源包,所述资源包指示一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;处理单元,用于基于所述M个资源包中的L个资源包确定第一信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别属于所述L个资源包,L大于1;所述收发单元还用于发送所述第一信道状态信息。
- 根据权利要求45所述的装置,其特征在于,所述第一信道状态信息指示L个CQI,具体包括:所述第一信道状态信息包括L个第一CQI;其中,所述L个第一CQI与所述L个CSI-RS资源一一对应;或者,所述第一信道状态信息包括一个第二CQI和L-1个CQI差分值;其中,所述第二CQI与所述L个CSI-RS资源中的一个第一CSI-RS资源对应,所述CQI差分值为第三CQI与所述第二CQI的差值,所述第三CQI与所述L个CSI-RS资源中除所述第一CSI-RS资源之外的CSI-RS资源对应。
- 根据权利要求46所述的装置,其特征在于,所述CQI差分值为宽带CQI差分值,所述宽带CQI 差分值的绝对值大于或者等于1,或者,所述宽带CQI差分值的绝对值大于或者等于2。
- 根据权利要求46所述的装置,其特征在于,所述第一CSI-RS资源为所述L个CSI-RS资源中索引最小的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中端口数最大的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中功率偏移量最大的CSI-RS资源;或者,所述第一CSI-RS资源为所述L个CSI-RS资源中同步信号功率偏移量最大的CSI-RS资源;或者,所述第一CSI-RS资源通过网络设备的配置信息指示。
- 根据权利要求45至48中任一项所述的装置,其特征在于,所述第一信道状态信息还包括:一个第一预编码矩阵指示PMI或者L个第二PMI;其中,所述一个第一PMI对应所述L个CSI-RS资源,所述L个第二PMI与所述L个CSI-RS资源一一对应。
- 根据权利要求49所述的装置,其特征在于,所述L个第一CQI是分别基于所述L个第二PMI确定的;或者,所述第二CQI和所述L-1个CQI差分值是分别基于所述L个第二PMI确定的;或者,所述L个第一CQI是基于所述第一PMI计算得到的;或者,所述第二CQI和所述L-1个CQI差分值是基于所述第一PMI计算得到的。
- 根据权利要求49所述的装置,其特征在于,所述处理单元还用于根据所述L个CSI-RS资源中索引最小的CSI-RS资源确定所述第一PMI;或者,根据所述L个CSI-RS资源中同步信号的功率偏移量最大的CSI-RS资源确定所述第一PMI;或者,根据网络设备指示的所述L个CSI-RS资源中的一个CSI-RS资源确定所述第一PMI。
- 根据权利要求45至51中任一项所述的装置,其特征在于,所述第一信道状态信息还包括:一个第一秩指示RI或者L个第二RI;其中,所述一个第一RI对应所述L个CSI-RS资源,所述L个第二RI与所述L个CSI-RS资源一一对应。
- 根据权利要求45至52中任一项所述的装置,其特征在于,所述处理单元还用于确定X个CSI-RS资源组合;其中,所述X个CSI-RS资源组合中每一CSI-RS资源组合包括K个CSI-RS资源,所述K个CSI-RS资源分别关联不同的K个资源包,所述K个资源包包括所述M个资源包。
- 根据权利要求53所述的装置,其特征在于,所述第一信道状态信息还包括所述X个CSI-RS资源组合的第一CSI-RS资源组合的索引或者所述第一CSI-RS资源组合中一个CSI-RS资源的索引,所述第一CSI-RS资源组合包括所述L个CSI-RS资源。
- 根据权利要求45至54中任一项所述的装置,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 根据权利要求45至55中任一项所述的装置,其特征在于,所述处理单元还用于确定第一数量,所述第一数量为在所述L个CSI-RS资源上计算所述第一信道状态信息所占用的处理单元的数量,所述第一数量为小于或等于L的正整数。
- 根据权利要求45至56中任一项所述的装置,其特征在于,所述L个资源包包括B个CSI-RS资源,所述处理单元还用于确定第二数量;其中,所述第二数量为计算所述L个资源包对应的所述第一信道状态信息占用的处理单元的数量,所述第二数量为小于B的正整数。
- 一种通信装置,其特征在于,包括:收发单元,用于接收第一指示信息;其中,所述第一指示信息指示M个资源包,所述资源包关联一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;处理单元,用于基于所述M个资源包中的L个资源包确定第二信道状态信息;其中,所述第二信道状态信息包括一个信道质量指示CQI,所述CQI与第二CSI-RS资源对应,所述第二CSI-RS资源包含于所述L个资源包中,L大于1;所述收发单元还用于发送所述第二信道状态信息。
- 根据权利要求58所述的装置,其特征在于,所述第二信道状态信息还包括所述第二CSI-RS资源对应的以下至少一项:一个预编码矩阵指示PMI,一个秩指示RI,一个索引。
- 根据权利要求58或59所述的装置,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 根据权利要求58至60中任一项所述的装置,其特征在于,所述L个资源包关联B个CSI-RS资源, 所述处理单元还用于确定第二数量;其中,所述第二数量为终端设备计算所述L个资源包对应的第二信道状态信息占用的处理单元的数量,所述第二数量为小于B的正整数。
- 一种通信装置,其特征在于,包括:收发单元,用于接收第二指示信息;其中,所述第二指示信息指示B个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;处理单元,用于基于所述第二指示信息确定第二数量;其中,所述第二数量为计算信道状态信息占用的CSI处理单元的数量,所述第二数量为小于B的正整数。
- 根据权利要求62所述的装置,其特征在于,所述B个CSI-RS资源为C个CSI-RS资源组合包括的CSI-RS资源。
- 根据权利要求63所述的装置,其特征在于,所述B个CSI-RS资源中包括C个基准资源,所述C个基准资源分别属于所述C个CSI-RS资源组合,所述B个CSI-RS资源中除所述C个基准资源和第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不占用CSI处理单元。
- 根据权利要求64所述的装置,其特征在于,所述第二数量等于C+E-1;所述C个CSI-RS资源组合中每一个CSI-RS资源组合的CSI-RS资源数量相同,E为所述第一CSI-RS资源组合中CSI-RS资源的数量;或者E为所述C个CSI-RS资源组合中包括的CSI-RS资源最多的CSI-RS资源组合的CSI-RS资源的数量。
- 根据权利要求64或65所述的装置,其特征在于,所述收发单元还用于发送所述信道状态信息;其中,所述信道状态信息包括所述第一CSI-RS资源组合的索引,或者所述信道状态信息包括所述第一CSI-RS资源组合中一个CSI-RS资源的索引。
- 根据权利要求64所述的装置,其特征在于,所述信道状态信息包括以下至少一项:一个或L个信道质量指示CQI、一个或L个预编码矩阵指示PMI,一个或L个秩指示RI;其中,所述L个CQI对应L个CSI-RS资源、所述L个PMI对应L个CSI-RS资源、所述L个RI对应L个CSI-RS资源,所述L个CSI-RS资源为所述第一CSI-RS资源组合包括的CSI-RS资源,所述第一CSI-RS资源组合包括第一CSI-RS资源,所述一个CQI对应所述第一CSI-RS资源,所述一个PMI对应所述第一CSI-RS资源,所述一个RI对应所述第一CSI-RS资源。
- 根据权利要求64至67中任一项所述的装置,其特征在于,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不属于激活CSI-RS资源;和/或所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源的CSI-RS端口不属于激活CSI-RS端口。
- 一种通信装置,其特征在于,包括:收发单元,用于发送CSI上报配置;其中,所述CSI上报配置指示M个资源包,所述资源包关联一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;所述收发单元还用于接收第一信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别属于L个资源包,所述L个资源包属于所述M个资源包,L大于1。
- 根据权利要求69所述的装置,其特征在于,所述第一信道状态信息指示L个CQI,具体包括:所述第一信道状态信息包括L个第一CQI;其中,所述L个第一CQI与所述L个CSI-RS资源一一对应;或者,所述第一信道状态信息包括一个第二CQI和L-1个CQI差分值;其中,所述第二CQI与所述L个CSI-RS资源中的一个第一CSI-RS资源对应,所述CQI差分值为第三CQI与所述第二CQI的差值,所述第三CQI与所述L个CSI-RS资源中除所述第一CSI-RS资源之外的CSI-RS资源对应。
- 根据权利要求70所述的装置,其特征在于,所述CQI差分值为宽带CQI差分值,所述宽带CQI差分值的绝对值大于或等于1,或者,所述宽带CQI差分值的绝对值大于或等于2。
- 根据权利要求70所述的装置,其特征在于,所述第一CSI-RS资源为所述L个CSI-RS资源中索引最小的CSI-RS资源;或者,所述L个CSI-RS资源中端口数最大的CSI-RS资源;或者,所述L个CSI-RS资源中功率偏移量最大的CSI-RS资源;或者,所述L个CSI-RS资源中同步信号功率偏移量最大的CSI-RS 资源;或者,根据网络设备的配置信息确定的CSI-RS资源。
- 根据权利要求69至72中任一项所述的装置,其特征在于,所述第一信道状态信息还包括:一个第一预编码矩阵指示PMI或者L个第二PMI;其中,所述一个第一PMI对应所述L个CSI-RS资源,所述L个第二PMI与所述L个CSI-RS资源一一对应。
- 根据权利要求73所述的装置,其特征在于,所述L个第一CQI是分别基于所述L个第二PMI确定的;或者,所述第二CQI和所述L-1个CQI差分值是分别基于所述L个第二PMI确定的;或者,所述L个第一CQI是基于所述第一PMI计算得到的;或者,所述第二CQI和所述L-1个CQI差分值是基于所述第一PMI计算得到的。
- 根据权利要求69至74中任一项所述的装置,其特征在于,所述第一信道状态信息还包括:一个第一秩指示RI或者L个第二RI;其中,所述一个第一RI对应所述L个CSI-RS资源,所述L个第二RI与所述L个CSI-RS资源一一对应。
- 根据权利要求69至75中任一项所述的装置,其特征在于,所述第一信道状态信息还包括X个CSI-RS资源组合的第一CSI-RS资源组合的索引或者所述第一CSI-RS资源组合中一个CSI-RS资源的索引,所述第一CSI-RS资源组合包括所述L个CSI-RS资源,所述X个CSI-RS资源组合中每一CSI-RS资源组合包括K个CSI-RS资源,所述K个CSI-RS资源分别关联不同的K个资源包,所述K个资源包包括所述M个资源包。
- 根据权利要求69至76中任一项所述的装置,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 一种通信装置,其特征在于,包括:收发单元,用于发送第一指示信息;其中,所述第一指示信息指示M个资源包,所述资源包关联一个或多个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源;所述收发单元还用于接收第二信道状态信息;其中,所述第一信道状态信息指示L个信道质量指示CQI,所述L个CQI分别对应L个CSI-RS资源,所述L个CSI-RS资源分别关联L个资源包,所述L个资源包属于所述M个资源包,L大于1。
- 根据权利要求78所述的装置,其特征在于,所述第二信道状态信息还包括所述第二CSI-RS资源对应的以下至少一项:一个预编码矩阵指示PMI,一个秩指示RI,一个索引。
- 根据权利要求78或79所述的装置,其特征在于,所述M个资源包的至少存在两个资源包中的CSI-RS资源的时域资源相同,且频域资源不同;或者,所述M个资源包的至少存在两个资源包中的CSI-RS资源存在相同的时频资源。
- 一种通信装置,其特征在于,包括:收发单元,用于发送第二指示信息;其中,所述第二指示信息指示B个信道状态信息参考信号CSI-RS资源,所述CSI-RS资源包括时频资源。
- 根据权利要求81所述的装置,其特征在于,所述装置还包括:处理单元,用于确定第二数量;其中,所述第二数量为计算信道状态信息占用的CSI处理单元的数量,所述第二数量为小于B的正整数。
- 根据权利要求81所述的装置,其特征在于,所述B个CSI-RS资源为C个CSI-RS资源组合包括的CSI-RS资源。
- 根据权利要求83所述的装置,其特征在于,所述B个CSI-RS资源中包括C个基准资源,所述C个基准资源分别属于所述C个CSI-RS资源组合,所述B个CSI-RS资源中除所述C个基准资源和第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不占用CSI处理单元。
- 根据权利要求84所述的装置,其特征在于,所述第二数量等于C+E-1;所述C个CSI-RS资源组合中每一CSI-RS资源组合的CSI-RS资源数量相同,E为所述第一CSI-RS资源组合中CSI-RS资源的数量;或者E为所述C个CSI-RS资源组合中CSI-RS资源最多的CSI-RS资源组合的CSI-RS资源的数量。
- 根据权利要求84或85所述的装置,其特征在于,所述收发单元还用于接收信道状态信息;其中,所述信道状态信息包括所述第一CSI-RS资源组合的索引,或者所述信道状态信息包括所述第一CSI-RS资 源组合中一个CSI-RS资源的索引。
- 根据权利要求86所述的装置,其特征在于,所述信道状态信息包括以下至少一项:一个或L个信道质量指示CQI、一个或L个预编码矩阵指示PMI,一个或L个秩指示RI;其中,所述L个CQI对应L个CSI-RS资源、所述L个PMI对应L个CSI-RS资源、所述L个RI对应L个CSI-RS资源,所述L个CSI-RS资源为所述第一CSI-RS资源组合包括的CSI-RS资源,所述第一CSI-RS资源组合包括第一CSI-RS资源,所述一个CQI对应所述第一CSI-RS资源,所述一个PMI对应所述第一CSI-RS资源、所述一个RI对应所述第一CSI-RS资源。
- 根据权利要求84至87中任一项所述的装置,其特征在于,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源不属于激活CSI-RS资源,所述B个CSI-RS资源中除所述C个基准资源和所述第一CSI-RS资源组合外的CSI-RS资源中至少一个CSI-RS资源的CSI-RS端口不属于激活CSI-RS端口。
- 一种通信装置,其特征在于,包括处理器和存储介质,所述存储介质存储有指令,所述指令被所述处理器运行时,使得根据权利要求1至44中任一项所述的通信方法被实现。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质包括指令,当所述指令被处理器运行时,使得根据权利要求1至44中任意一项所述的通信方法被实现。
- 一种通信方法,其特征在于,所述通信方法包括如权利要求1至44中任一项所述的通信方法。
- 一种通信系统,其特征在于,所述通信系统包括终端设备和网络设备,所述终端设备用于执行根据权利要求1至24中任一项所述的通信方法,所述网络设备用于执行根据权利要求25至44中任一项所述的通信方法。
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| EP4641942A4 (en) | 2026-04-22 |
| CN118316579A (zh) | 2024-07-09 |
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