Method and device for wireless communication in UE and base station
The present disclosure provides a method and device for wireless communication in a user equipment and a base station. The user equipment receives a first information, and transmits a first wireless signal in a first time domain resource of a first sub-band. The first information is used to indicate a first parameter; the first parameter is associated with one of L spatial parameter sets; the L spatial parameter sets are respectively in one-to-one corresponding to L time domain resources; the first time domain resource is one of the L time domain resources. The L time domain resources belong to a first time window; the first information is used to determine the first time domain resource from the L time domain resources; the first parameter is used to determine a transmitting antenna port group of the first wireless signal.
1 . A method for wireless communication by a user equipment (UE), comprising:
receiving an indication of L spatial parameter sets via radio resource control (RRC) signaling, wherein L is an integer greater than 1, and wherein the L spatial parameter sets correspond one-to-one with L time domain resources;
receiving downlink control information (DCI) that is used to determine a first time domain resource that corresponds with a first spatial parameter set of the L spatial parameter sets, the DCI including a sounding reference signal resource indicator (SRI), wherein the SRI is associaed with the first spatial parameter set, and the SRI isued to determine an antenna port group comprising one or more antenna ports; and
transmitting, via a physical uplink shared channel (PUSCH) and using the antenna port group, a wireless signal in the first time domain resource.
2 . The method of claim 1 , wherein:
the SRI corresponds to a first antenna port group for sounding reference signals (SRS);
the first spatial parameter set corresponds to a second antenna port group;
either:
the second antenna port group corresponds to all spatial parameters in the first spatial parameter set,
or
the second antenna port group includes a transmitting antenna port group for wireless signals indicated by all spatial parameters in the first spatial parameter set;
the first antenna port group is spatially associated with the second antenna port group; and
the second antenna port group includes all antenna ports in the first antenna port group.
3 . The method of claim 1 , wherein the SRI belongs to only the first spatial parameter set.
4 . The method of claim 1 , wherein:
a spatial parameter set of the L spatial parameter sets includes one or more spatial parameters; and
each of the one or more spatial parameters includes an SRI.
5 . The method of claim 2 , wherein:
a spatial parameter set of the L spatial parameter sets includes one or more spatial parameters; and
each of the one or more spatial parameters includes an SRI.
6 . The method of claim 1 , wherein:
the DCI includes a field that indicates a frequency domain resource occupied by the wireless signal;
the SRI corresponds to a first antenna port group for sounding reference signals (SRS);
the first antenna port group is spatially associated with the antenna port group used to transmit the wireless signal; and
the antenna port group used to transmit the first wireless signal includes all antenna ports in the first antenna port group.
7 . The method of claim 1 , wherein any two of the L time domain resources are orthogonal to each other in the time domain.
8 . A method for wireless communication in a base station, comprising:
transmitting an indication of L spatial parameter sets via radio resource control (RRC) signaling, wherein L is an integer greater than 1, and wherein the L spatial parameter sets corresponds one-to-one with L time domain resources;
transmitting dowlink control information (DCI) that is used to determine a first time domain resource that corresponds with a first spatial parameter set of the L spatial parameter sets, the DCI including a sounding reference signal resource indicator (SRI), wherein the SRI is associated with the first spatial parameter set, and the SRI is used to determine an antenna port group comprising one or more antenna ports; and
receiving, via a physical uplink shared channel (PUSCH) and using the antenna port group, a wireless signal in the first time domain resource.
9 . The method of claim 8 , wherein the first parameter corresponds to a first antenna port group, and the first antenna port group includes a transmit antenna port group of SRS indicated by the SRI that included in the first parameter; the first spatial parameter set corresponds to a second antenna port group;
the second antenna port group includes an antenna port group corresponding to all spatial parameters in the first spatial parameter set, or the second antenna port group includes a transmitting antenna port group of wireless signals indicated by all spatial parameters in the first spatial parameter set;
the first antenna port group is spatially associated with the second antenna port group, the second antenna port group includes all antenna ports in the first antenna port group.
10 . The method of claim 8 , wherein the first parameter only belongs to one of the L spatial parameter sets.
11 . The method of claim 8 , wherein any one of the L spatial parameter sets includes a positive integer number of spatial parameters, the positive integer spatial parameters all include SRI.
12 . The method of claim 8 , wherein any two of the L time domain resource are orthogonal to each other in the time domain.
13 . A user equipment (UE) for wireless communication, comprising:
a receiver configured to:
recieve an indication of L spatial parameter sets via radio resource control (RRC) signaling, wherein L is an integer greater than 1, and wherein the L spatial parameter sets correspond one-to-one with L time domain resources; and
receive downlink control information (DCI) that is used to determine a first time domain resource that corresponds with a first spatial parameter sets of the L spatial parameter sets, the DCI including a sounding reference signal resource indicator (SRI), wherein the SRI is associated with the first spatial parameter set, and the SRI is used to determine an antenna port group comprising one or more antenna ports; and
a transmitter configured to transmit, via a physical uplink shared channel (PUSCH) and using the antenna port group, a wireless signal in the first time domain resource.
14 . The UE of claim 13 , wherein:
the SRI corresponds to a first antenna port group for sounding refernece signals (SRS);
the first spatial parameter set corresponds to a second antenna port group;
either:
the second antenna port group corresponds to all spatial parameters in the first spatial parameter set,
or
the second antenna port group includes a transmitting antenna port group for wireless signals indicated by all spatial parameters in the first spatial parameter set;
the first antenna port group is spatially associated with the second antenna port group; and
the second antenna port group includes all antenna ports in the first antenna port group.
15 . The UE of claim 13 , wherein the SRI belongs to only the first spatial parameter set.
16 . The UE of claim 13 , wherein:
a spatial parameter set of the L spatial parameter sets includes one or more spatial parameters; and
each of the one or more spatial parameters includes an SRI.
17 . The UE of claim 12 , wherein:
a spatial parameter set of the L spatial parameter sets includes one or more spatial parameters, and
each of the one or more spatial parameters includes an SRI.
18 . The UE of claim 11 , wherein:
indicates a frequency domain resource occupied by the wireless signal;
the SRI corresponds to a first antenna port group for sounding reference signals (SRS);
the first antenna port group is spatially associated with the antenna port group used to transmit the wireless signal; and
the antenna port group used to transmit the wireless signal includes all antenna ports in the first antenna port group.
19 . The UE of claim 13 , wherein any two of the L time domain resources are orthogonal to each other in the time domain.
20 . A base station for wireless communication, comprising:
a transmitter configured to:
trasmit an indication of L spatial parameter sets via radio resource control (RRC) signaling, wherein L is an integer greater than 1, and wherein the L spatial parameter sets corresponds one-to-one with L time domain resources; and
transmit downlink control information (DCI) that is used to determine a first time domain resource that corresponds with a first spatial parameter sets of the L spatial parameter sets, the DCI including a sounding reference signal resource indicator (SRI), wherein the SRI is associated with the first spatial parameter set, and the SRI is used to determine an antenna port group comprising one or more antenna ports;
a receiver configured to receive, via a physical uplink shared channel (PUSCH) and using the antenna port group, a wireless signal in the first time domain resource.
21 . The base station of claim 20 , wherein:
the SRI corresonds to a first antenna port group for sounding reference signals (SRS);
the first spatial parameter set corresponds to a second antenna port group;
either;
the second antenna port group correponds to all spatial parameters in the first spatial parameter set,
or
the second antenna port group includes an antenna port group for wireless signals indicated by all spatial parameters in the first spatial parameter set;
the first antenna port group is spatially associated with the second antenna port group, the second antenna port group includes all antenna ports in the first antenna port group.
22 . The base station claim 20 , wherein SRI belongs to only the first spatial parameter set.
23 . The base station of claim 20 , wherein:
a spatial parameter set of the L spatial parameter sets includes one or more spatial parameters; and
each of the one or more spatial parameters includes an SRI.
24 . The base station of claim 20 , wherein any two of the L time domain resources are orthogonal to each other in the time domain.