Channel state information CSI report mapping method, terminal, and network-side device
A channel state information CSI report mapping method, a terminal, and a network-side device. The CSI report mapping method in embodiments of this application includes: a terminal feeds back X CSI reports to a network-side device through a target channel according to a preset mapping rule, where the CSI report includes at least one of the following: information for indicating a beam reporting type and information about target beams; the target beams include at least one of the following: N pairs of first beams that can be simultaneously received by the terminal, and M second beams whose measurement values satisfy a predetermined condition, where N is a positive integer greater than or equal to 1, and X and M are positive integers; and the preset mapping rule is a mapping rule that matches the beam reporting type.
1 . A channel state information, CSI, report mapping method, comprising:
feeding back, by a terminal, X CSI reports to a network-side device according to a preset mapping rule, wherein
the CSI report comprises information about target beams;
the target beams comprise N pairs of first beams that can be simultaneously received by the terminal, wherein N is a positive integer greater than 1; and
the preset mapping rule is a mapping rule that matches group-based beam reporting;
wherein the preset mapping rule comprises a first rule; wherein
the first rule comprises: a first CSI measurement resource indicator is arranged in a first position, and CSI measurement resource indicators of remaining beams are sequentially arranged in a form of beam pairs, wherein the first CSI measurement resource indicator is a CSI measurement resource indicator corresponding to a beam whose layer 1 measurement value is largest among the N pairs of first beams; and
if the first rule is satisfied, the layer 1 measurement value corresponding to the first CSI measurement resource indicator is mapped, and layer 1 measurement values of the remaining beams are mapped based on differences between the layer 1 measurement value corresponding to the first CSI measurement resource indicator and the layer 1 measurement values of the remaining beams.
2 . The method according to claim 1 , wherein the CSI report further comprises information for indicating a beam reporting type, the beam reporting type comprises any one of the following: the group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting; and
the beam reporting type is configured by the network-side device for the terminal, or determined by the terminal according to a preset rule of the network-side device.
3 . The method according to claim 2 , wherein in a case that the beam reporting type is configured by the network-side device, or determined by the terminal according to the preset rule of the network-side device,
if the beam reporting type is group-based beam reporting, the terminal selects to report information about the N pairs of first beams that can be simultaneously received by the terminal, wherein target CSI measurement resource indicators in information about each pair of first beams correspond to different CSI measurement resources;
the CSI measurement resources comprise: a CSI measurement resource set.
4 . The method according to claim 1 , wherein the information about the target beams comprises at least one of the following: target CSI measurement resource indicators and measurement values of target CSI measurement resources; and
the target CSI measurement resource indicators are CSI reference signal resource indicators, CRIs, or system synchronization block resource indicators, SSBRIs, and the measurement values of the target CSI measurement resources are layer 1 measurement values.
5 . The method according to claim 4 , wherein in a case that the target CSI report comprises the target CSI measurement resource indicators, the method further comprises:
encoding, by the terminal, the target CSI measurement resource indicators based on a preset encoding mode, wherein
the target CSI measurement resource indicators comprise all target CSI measurement resource indicators; and
the preset encoding mode comprises:
the terminal performs encoding based on a quantity of CMRs configured in a CSI measurement resource set.
6 . The method according to claim 1 , wherein the CSI report further comprises an indication field which is used to indicate a CSI measurement resource set corresponding to the first CSI measurement resource indicator, and remaining CSI measurement resource indicators are mapped and arranged according to the preset mapping rule, and determine a correspondence between the first CSI measurement resource indicator and the CSI measurement resource set.
7 . A terminal, comprising a processor, a memory, and a program or instructions stored in the memory and capable of running on the processor, wherein when the program or instructions are executed by the processor, implementing:
feeding back X CSI reports to a network-side device according to a preset mapping rule, wherein
the CSI report comprises information about target beams;
the target beams comprise N pairs of first beams that can be simultaneously received by the terminal, wherein N is a positive integer greater than 1; and
the preset mapping rule is a mapping rule that matches group-based beam reporting;
wherein the preset mapping rule comprises a first rule; wherein
the first rule comprises: a first CSI measurement resource indicator is arranged in a first position, and CSI measurement resource indicators of remaining beams are sequentially arranged in a form of beam pairs, wherein the first CSI measurement resource indicator is a CSI measurement resource indicator corresponding to a beam whose layer 1 measurement value is largest among the N pairs of first beams; and
if the first rule is satisfied, the layer 1 measurement value corresponding to the first CSI measurement resource indicator is mapped, and layer 1 measurement values of the remaining beams are mapped based on differences between the layer 1 measurement value corresponding to the first CSI measurement resource indicator and the layer 1 measurement values of the remaining beams.
8 . The terminal according to claim 7 , the CSI report further comprises information for indicating a beam reporting type, wherein the beam reporting type comprises any one of the following: the group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting; and
the beam reporting type is configured by the network-side device for the terminal, or determined by the terminal according to a preset rule of the network-side device.
9 . The terminal according to claim 8 , wherein in a case that the beam reporting type is configured by the network-side device, or determined by the terminal according to the preset rule of the network-side device,
if the beam reporting type is group-based beam reporting, the terminal selects to report information about the N pairs of first beams that can be simultaneously received by the terminal, wherein target CSI measurement resource indicators in information about each pair of first beams correspond to different CSI measurement resources;
the CSI measurement resources comprise: a CSI measurement resource set.
10 . The terminal according to claim 7 , wherein the information about the target beams comprises at least one of the following: target CSI measurement resource indicators and measurement values of target CSI measurement resources; and
the target CSI measurement resource indicators are CSI reference signal resource indicators CRIs or system synchronization block resource indicators SSBRIs, and the measurement values of the target CSI measurement resources are layer 1 measurement values.
11 . The terminal according to claim 10 , wherein in a case that the target CSI report comprises the target CSI measurement resource indicators, the method further comprises:
encoding, by the terminal, the target CSI measurement resource indicators based on a preset encoding mode, wherein
the target CSI measurement resource indicators comprise all target CSI measurement resource indicators; and
the preset encoding mode comprises:
the terminal performs encoding based on a quantity of CMRs configured in a CSI measurement resource set.
12 . The terminal according to claim 7 , wherein the CSI report further comprises an indication field which is used to indicate a CSI measurement resource set corresponding to the first CSI measurement resource indicator, and remaining CSI measurement resource indicators are mapped and arranged according to the preset mapping rule, and determine a correspondence between the first CSI measurement resource indicator and the CSI measurement resource set.
13 . A non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a program or instructions, and when the program or instructions are executed by a processor, following steps are implemented:
feeding back, by a terminal, X CSI reports to a network-side device according to a preset mapping rule, wherein
the CSI report comprises information about target beams;
the target beams comprise N pairs of first beams that can be simultaneously received by the terminal, wherein N is a positive integer greater than 1; and
the preset mapping rule is a mapping rule that matches group-based beam reporting;
wherein the preset mapping rule comprises a first rule; wherein
the first rule comprises: a first CSI measurement resource indicator is arranged in a first position, and CSI measurement resource indicators of remaining beams are sequentially arranged in a form of beam pairs, wherein the first CSI measurement resource indicator is a CSI measurement resource indicator corresponding to a beam whose layer 1 measurement value is largest among the N pairs of first beams; and
if the first rule is satisfied, the layer 1 measurement value corresponding to the first CSI measurement resource indicator is mapped, and layer 1 measurement values of the remaining beams are mapped based on differences between the layer 1 measurement value corresponding to the first CSI measurement resource indicator and the layer 1 measurement values of the remaining beams.
14 . The non-transitory readable storage medium according to claim 13 , wherein the CSI report further comprises information for indicating a beam reporting type, the beam reporting type comprises any one of the following: the group-based beam reporting, non-group-based beam reporting, and group-based and non-group-based hybrid beam reporting; and
the beam reporting type is configured by the network-side device for the terminal, or determined by the terminal according to a preset rule of the network-side device.
15 . The non-transitory readable storage medium according to claim 14 , wherein in a case that the beam reporting type is configured by the network-side device, or determined by the terminal according to the preset rule of the network-side device,
if the beam reporting type is group-based beam reporting, the terminal selects to report information about the N pairs of first beams that can be simultaneously received by the terminal, wherein target CSI measurement resource indicators in information about each pair of first beams correspond to different CSI measurement resources;
the CSI measurement resources comprise: a CSI measurement resource set.
16 . The non-transitory readable storage medium according to claim 13 , wherein the information about the target beams comprises at least one of the following: target CSI measurement resource indicators and measurement values of target CSI measurement resources; and
the target CSI measurement resource indicators are CSI reference signal resource indicators, CRIs, or system synchronization block resource indicators, SSBRIs, and the measurement values of the target CSI measurement resources are layer 1 measurement values.
17 . The non-transitory readable storage medium according to claim 16 , wherein in a case that the target CSI report comprises the target CSI measurement resource indicators, the method further comprises:
encoding, by the terminal, the target CSI measurement resource indicators based on a preset encoding mode, wherein
the target CSI measurement resource indicators comprise all target CSI measurement resource indicators; and
the preset encoding mode comprises: the terminal performs encoding based on a quantity of CMRs configured in a CSI measurement resource set.
18 . The non-transitory readable storage medium according to claim 13 , wherein the CSI report further comprises an indication field which is used to indicate a CSI measurement resource set corresponding to the first CSI measurement resource indicator, and remaining CSI measurement resource indicators are mapped and arranged according to the preset mapping rule, and determine a correspondence between the first CSI measurement resource indicator and the CSI measurement resource set.