Method and device for power control in uplink and downlink beam management
The present disclosure provides a method and device in a node used for wireless communications. A first node receives a first signaling; and transmits a first signal; the first signaling is used for determining configuration information of the first signal; the first signaling is used for determining a first information unit, the first information unit comprises a first field, the first field in the first information unit indicates a first reference-signal resource, and the first reference-signal resource is used for determining a spatial-domain filter of the first signal; a first power control parameter group is used for determining transmission power of the first signal. The above method unifies Uplink beam management mechanism and Downlink beam management mechanism, and solves the power control problem of Uplink transmission under a unified beam management mechanism.
1 . A user equipment (UE) for wireless communications, comprising:
a first receiver, receiving a first signaling; and
a first transmitter, transmitting a first signal of a transmission type comprising one of a physical uplink shared channel (PUSCH) transmission, a physical uplink control channel transmission or a sounding reference signal (SRS) transmission; wherein:
the first signaling is used for determining configuration information of the first signal;
the first signaling indicates a first information unit, the first information unit comprising a first field;
the first field in the first information unit indicates a first reference-signal resource, the first reference-signal resource comprising a CSI-RS resource, a SS/PBCH block resource, or an SRS resource;
the first reference-signal resource is used for determining a spatial-domain filter of the first signal;
the first information unit comprises a first index, and the first index is used for identifying the first information unit;
a first power control parameter group is used for determining transmission power of the first signal;
the first power control parameter group comprises one or more of P 0 for power control of the first signal, a for power control of the first signal, an identifier of a reference-signal resource for measuring pathloss for calculating transmission power of the first signal, or an index of a power control adjustment state corresponding to the first signal;
a relation between the first power control parameter group and the first information unit is related to the transmission type of the first signal;
the first information unit indicates three power control parameter groups, one power control parameter group for each of the transmission type of the first signal;
the relation between the first power control parameter group and the first information unit comprises that the first power control parameter group is related to which group of the three power control parameter groups;
the three power control parameter groups respectively correspond to the transmission type of the first signal;
a target power control parameter group is one of the three power control parameter groups corresponding to the transmission type of the first signal, and
the first power control parameter group is related to the target power control parameter group.
2 . The UE according to claim 1 , wherein the target power control parameter group comprises all or part of power control parameters of the first power control parameter group.
3 . The UE according to claim 1 , wherein the first power control parameter group comprises a first parameter sub-group and a second parameter sub-group, and the first parameter sub-group is the target power control parameter group; a third information block is used for determining the second parameter sub-group.
4 . The UE according to claim 1 , wherein the first field in the first information unit indicates that the first reference-signal resource corresponds to a first associated type, and the first associated type indicates that the first reference-signal resource is used for determining the spatial-domain filter of the first signal.
5 . The UE according to claim 1 , wherein the first receiver receives a first information block used for determining N 1 information units, and the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1; or,
wherein the first receiver receives the first information block and a second information block; wherein the first information block is used for determining N 1 information units, and wherein the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1; the second information block is used for activating N 2 information units out of the N 1 information units, N 2 being a positive integer greater than 1 and no greater than the N 1 .
6 . The UE according to claim 1 , wherein the first signaling indicates a TCI codepoint corresponding to the first information unit.
7 . A network node for wireless communications, comprising:
a second transmitter, transmitting a first signaling; and
a second receiver, receiving a first signal of a transmission type comprising one of a physical uplink shared channel (PUSCH) transmission, a physical uplink control channel transmission or a sounding reference signal (SRS) transmission a; wherein:
the first signaling is used for determining configuration information of the first signal;
the first signaling indicates a first information unit comprising a first field;
the first field in the first information unit indicates a first reference-signal resource comprising a CSI-RS resource, a SS/PBCH block resource, or an SRS resource;
the first reference-signal resource is used for determining a spatial-domain filter of the first signal;
the first information unit comprises a first index, and the first index is used for identifying the first information unit;
a first power control parameter group is used for determining transmission power of the first signal;
the first power control parameter group comprises one or more of P 0 for power control of the first signal, a for power control of the first signal, and an identifier of a reference-signal resource for measuring pathloss for calculating transmission power of the first signal, or an index of a power control adjustment state corresponding to the first signal;
a relation between the first power control parameter group and the first information unit is related to the transmission type of the first signal;
the first information unit indicates three power control parameter groups, one power control parameter group for a corresponding one of the transmission type of the first signal;
the relation between the first power control parameter group and the first information unit comprises that the first power control parameter group is related to which group of the three power control parameter groups;
the three power control parameter groups respectively correspond to the transmission type of the first signal;
a target power control parameter group is one of the three power control parameter groups corresponding to the transmission type of the first signal; and
the first power control parameter group is related to the target power control parameter group.
8 . The network node according to claim 7 , wherein the target power control parameter group comprises all or part of power control parameters of the first power control parameter group.
9 . The network node according to claim 7 , wherein the first power control parameter group comprises a first parameter sub-group and a second parameter sub-group, and the first parameter sub-group is the target power control parameter group; a third information block is used for determining the second parameter sub-group.
10 . The network node according to claim 7 , wherein the second transmitter transmits a first information block used for determining N 1 information units, and the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1; or, wherein the second transmitter transmits the first information block and a second information block; wherein the first information block is used for determining N 1 information units, and the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1; the second information block is used for activating N 2 information units out of the N 1 information units, N 2 being a positive integer greater than 1 and no greater than the N 1 .
11 . The network node according to claim 7 , wherein the first signaling indicates a TCI codepoint corresponding to the first information unit.
12 . A method for wireless communications performed by a user equipment (UE), the method comprising:
receiving a first signaling; and
transmitting a first signal of a transmission type comprising one of a physical uplink shared channel (PUSCH) transmission, a physical uplink control channel transmission or a sounding reference signal (SRS) transmission a; wherein:
the first signaling is used for determining configuration information of the first signal;
the first signaling indicates a first information unit
comprising a first field;
the first field in the first information unit indicates a first reference-signal resource, the first reference-signal resource comprising a CSI-RS resource, a SS/PBCH block resource, or an SRS resource;
the first reference-signal resource is used for determining a spatial-domain filter of the first signal;
the first information unit comprises a first index, and the first index is used for identifying the first information unit;
a first power control parameter group is used for determining transmission power of the first signal;
the first power control parameter group comprises one or more of P 0 for power control of the first signal, a for power control of the first signal, an identifier of a reference-signal resource for measuring pathloss for calculating transmission power of the first signal, or an index of a power control adjustment state corresponding to the first signal;
a relation between the first power control parameter group and the first information unit is related to the transmission type of the first signal;
the first information unit indicates three power control parameter groups, one power control parameter group for each of the transmission type of the first signal;
the relation between the first power control parameter group and the first information unit comprises that the first power control parameter group is related to which group of the three power control parameter groups;
the three power control parameter groups respectively correspond to transmission types of the first signal;
a target power control parameter group is one of the three power control parameter groups corresponding to the transmission type of the first signal; and
the first power control parameter group is related to the target power control parameter group.
13 . The method according to claim 12 , wherein the target power control parameter group comprises all or part of power control parameters of the first power control parameter group.
14 . The method according to claim 12 , wherein the first power control parameter group comprises a first parameter sub-group and a second parameter sub-group, and the first parameter sub-group is the target power control parameter group; a third information block is used for determining the second parameter sub-group.
15 . The method according to claim 12 , wherein the first field in the first information unit indicates that the first reference-signal resource corresponds to a first associated type, and the first associated type indicates that the first reference-signal resource is used for determining the spatial-domain filter of the first signal.
16 . The method according to claim 12 , comprising:
receiving a first information block; wherein the first information block is used for determining N 1 information units, and the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1;
or, receiving a first information block and a second information block; wherein the first information block is used for determining N 1 information units, and the first information unit is one of the N 1 information units, N 1 being a positive integer greater than 1; the second information block is used for activating N 2 information units out of the N 1 information units, N 2 being a positive integer greater than 1 and no greater than the N 1 .
17 . The method according to claim 12 , wherein the first signaling indicates a TCI codepoint corresponding to the first information unit.
18 . A method for wireless communications by a base station, the method comprising:
transmitting a first signaling; and
receiving a first signal of a transmission type comprising one of a physical uplink shared channel (PUSCH) transmission, a physical uplink control channel (PUCCH) transmission or a sounding reference signal (SRS) transmission;
wherein:
the first signaling is used for determining configuration information of the first signal;
the first signaling indicates a first information unit
comprising a first field;
the first field in the first information unit indicates a first reference-signal resource, the first reference-signal resource comprising a CSI-RS resource, a SS/PBCH block resource, or an SRS resource;
the first reference-signal resource is used for determining a spatial-domain filter of the first signal;
the first information unit comprises a first index, and the first index is used for identifying the first information unit;
a first power control parameter group is used for determining transmission power of the first signal;
the first power control parameter group comprises one or more of P 0 for power control of the first signal, a for power control of the first signal, and an identifier of a reference-signal resource for measuring pathloss for calculating transmission power of the first signal, or an index of a power control adjustment state corresponding to the first signal;
a relation between the first power control parameter group and the first information unit is related to the transmission type of the first signal;
the first information unit indicates three power control parameter groups;
the relation between the first power control parameter group and the first information unit comprises that the first power control parameter group is related to which group of the three power control parameter groups;
the three power control parameter groups respectively correspond to the transmission types of the first signal;
a target power control parameter group is one of the three power control parameter groups corresponding to the transmission type of the first signal; and
the first power control parameter group is related to the target power control parameter group.
19 . The method according to claim 18 , wherein the first power control parameter group comprises a first parameter sub-group and a second parameter sub-group, and the first parameter sub-group is the target power control parameter group; a third information block is used for determining the second parameter sub-group.
20 . The method according to claim 18 , wherein the first signaling indicates a TCI codepoint corresponding to the first information unit.