Method and device for multi-antenna transmission in UE and base station
The present disclosure provides a method and device for multi-antenna transmission in UE and base station. The user equipment receives a first wireless signal at first; then transmits a second wireless signal, and monitors a first signaling in a first sub-time resource pool. Wherein the first wireless signal is transmitted by K antenna port group(s) and the second wireless signal is used to determine the first antenna port group. The first antenna port group is one of the K antenna port group(s). The first sub-time resource pool is reserved to the first antenna port group, or the index of the first antenna port group is used to determine the first sub-time resource pool. One antenna port group includes positive integer number of antenna ports, and the K is a positive integer greater than 1. The disclosure reduces the complexity of blind detection of downlink signaling by the UE.
1. A method for multi-antenna transmission in a user equipment, comprising:
receiving a first wireless signal;
transmitting a second wireless signal;
monitoring a first signaling in a first sub-time resource pool;
receiving second information; and
monitoring the first signaling in a second time resource pool;
wherein the first wireless signal is transmitted by K antenna port groups; the second wireless signal is used to determine a first antenna port group; the first antenna port group is one of the K antenna port groups; an index of the first antenna port group in the K antenna port groups is used to determine the first sub-time resource pool; one antenna port group in the K antenna port groups includes a positive integer number of antenna port/ports; the K is a positive integer greater than 1; the first wireless signal includes one or more of PSS(Primary Synchronization Signal), SSS(Secondary Synchronization Signal), and MIB(Master Information Block)/SIB(System Information Block); the second wireless signal is a RACH (Random Access Channel) preamble, and at least one of a sequence of the RACH preamble and a time-frequency resource occupied by the RACH preamble is used to determine the first antenna port group; the first signaling is non-UE-specific and the first signaling is transmitted on PDCCH (Physical Downlink Control Channel); the second information is used to determine the second time resource pool, and the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups.
2. The method of claim 1 , further comprising:
receiving first information, wherein the first information is used to determine a first time resource pool, the first time resource pool comprises K sub-time resource pools, the K sub-time resource pools are respectively reserved to the K antenna port groups, the first sub-time resource pool is one of the K sub-time resource pools, any two sub-time resource pools of the K sub-time resource pools are orthogonal in the time domain.
3. The method of claim 2 , wherein the first information includes one or more RRC (Radio Resource Control) IE (Information Element);
or, the first information is transmitted on a PBCH (Physical Broadcast CHannel);
or, the first signaling is respectively transmitted once in the K sub-time resource pools.
4. The method of claim 1 , wherein the index of the first antenna port group in the K antenna port groups is used to generate the first signaling.
5. The method of claim 1 , further comprising:
operating a third wireless signal;
wherein the first signaling is used to determine a fourth time resource pool; time domain resources occupied by the third wireless signal belong to the fourth time resource pool; the operating is receiving, or the operating is transmitting;
or receiving K1 reference signal/signals;
wherein the K1 reference—signal/signals is/are respectively transmitted by K1 antenna port/ports; the index of the first antenna port group in the K antenna port groups is used to determine at least one of the air interface resource/resources occupied by the K1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K1 reference signal/signals; the air interface resource/resources occupied by the K1 reference signal/signals includes/include one or more of time domain resources, frequency domain resources, and code domain resources.
6. A method for multi-antenna transmitting in a base station, comprising:
transmitting a first wireless signal;
receiving a second wireless signal;
transmitting a first signaling in a first sub-time resource pool;
transmitting second information; and
transmitting the first signaling in a second time resource pool;
wherein the first wireless signal is transmitted by K antenna port groups; the second wireless signal is used to determine a first antenna port group; the first antenna port group is one of the K antenna port groups; an index of the first antenna port group in the K antenna port groups is used to determine the first sub-time resource pool; one antenna port group in the K antenna port groups includes a positive integer number of antenna port/ports; and the K is a positive integer greater than 1; the first wireless signal includes one or more of PSS(Primary Synchronization Signal), SSS(Secondary Synchronization Signal), and MIB(Master Information Block)/SIB(System Information Block); the second wireless signal is a RACH (Random Access Channel) preamble, and at least one of a sequence of the RACH preamble and a time-frequency resource occupied by the RACH preamble is used to determine the first antenna port group; the first signaling is non-UE-specific and the first signaling is transmitted on PDCCH (Physical Downlink Control Channel); the second information is used to determine the second time resource pool, and the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups.
7. The method of claim 6 , further comprising:
transmitting first information, wherein the first information is used to determine a first time resource pool, the first time resource pool comprises K sub-time resource pools, and the K sub-time resource pools are respectively reserved to the K antenna port groups, the first sub-time resource pool is one of the K sub-time resource pools, and any two sub-time resource pools of the K sub-time resource pools are orthogonal in the time domain.
8. The method of claim 7 , wherein the first information includes one or more RRC (Radio Resource Control) IE (Information Element);
or, the first information is transmitted on a PBCH (Physical Broadcast CHannel);
or, the first signaling is respectively transmitted once in the K sub-time resource pools.
9. The method of claim 6 , wherein the index of the first antenna port group in the K antenna port groups is used to generate the first signaling.
10. The method of claim 6 , further comprising:
performing a third wireless signal;
wherein the first signaling is used to determine a fourth time resource pool; time domain resources occupied by the third wireless signal belong to the fourth time resource pool; the performing is transmitting, or the performing is receiving;
or, transmitting K1 reference signal/signals;
wherein the K1 reference signal/signals is/are respectively transmitted by K1 antenna port/ports; the index of the first antenna port group in the K antenna port groups is used to determine at least one of the air interface resource/resources occupied by the K1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K1 reference signal/signals; the air interface resource/resources occupied by the K1 reference signal/signals includes/include one or more of time domain resources, frequency domain resources, and code domain resources.
11. A user equipment (UE) for multi-antenna transmission, comprising: a first receiver, receiving a first wireless signal and a second information;
a first transmitter, transmitting a second wireless signal; and
a second receiver, monitoring a first signaling in a first sub-time resource pool, and monitoring the first signaling in a second time resource pool;
wherein the first wireless signal is transmitted by K antenna port groups; the second wireless signal is used to determine a first antenna port group; the first antenna port group is one of the K antenna port groups; an index of the first antenna port group in the K antenna port groups is used to determine the first sub-time resource pool; one antenna port group in the K antenna port groups includes a positive integer number of antenna port/ports; the K is a positive integer greater than 1; the first wireless signal includes one or more of PSS(Primary Synchronization Signal), SSS(Secondary Synchronization Signal), and MIB(Master Information Block)/SIB(System Information Block); the second wireless signal is a RACH (Random Access Channel) preamble, and at least one of a sequence of the RACH preamble and a time-frequency resource occupied by the RACH preamble is used to determine the first antenna port group; the first signaling is non-UE-specific and the first signaling is transmitted on PDCCH (Physical Downlink Control Channel); the second information is used to determine the second time resource pool, and the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups.
12. The UE of claim 11 , wherein the first receiver receives first information, wherein the first information is used to determine a first time resource pool, the first time resource pool comprises K sub-time resource pools, and the K sub-time resource pools are respectively reserved to the K antenna port groups, the first sub-time resource pool is one of the K sub-time resource pools, and any two sub-time resource pools of the K sub-time resource pools are orthogonal in the time domain.
13. The UE of claim 12 , wherein the first information includes one or more RRC (Radio Resource Control) IE (Information Element);
or, the first information is transmitted on a PBCH (Physical Broadcast CHannel);
or, the first signaling is respectively transmitted once in the K sub-time resource pools.
14. The UE of claim 11 , wherein the index of the first antenna port group in the K antenna port groups is used to generate the first signaling.
15. The UE of claim 11 , further comprising:
a first processor, operating a third wireless signal;
wherein the first signaling is used to determine a fourth time resource pool; time domain resources occupied by the third wireless signal belong to the fourth time resource pool; the operating is receiving, or the operating is transmitting;
or a third receiver, receiving K1 reference signal/signals;
wherein the K1 reference signal/signals is/are respectively transmitted by K1 antenna port/ports; the index of the first antenna port group in the K antenna port groups is used to determine at least one of the air interface resource/resources occupied by the K1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K1 reference signal/signals; the air interface resource/resources occupied by the K1 reference signal/signals includes/include one or more of time domain resources, frequency domain resources, and code domain resources.
16. A base station equipment for multi-antenna transmission, comprising:
a second transmitter, transmitting a first wireless signal and second information;
a fourth receiver, receiving a second wireless signal; and
a third transmitter, transmitting a first signaling in a first sub-time resource pool and transmitting the first signaling in a second time resource pool;
wherein the first wireless signal is transmitted by K antenna port groups; the second wireless signal is used to determine a first antenna port group; the first antenna port group is one of the K antenna port groups; an index of the first antenna port group in the K antenna port groups is used to determine the first sub-time resource pool; one antenna port group in the K antenna port groups includes a positive integer number of antenna port/ports; and the K is a positive integer greater than 1; the first wireless signal includes one or more of PSS(Primary Synchronization Signal), SSS(Secondary Synchronization Signal), and MIB(Master Information Block)/SIB(System Information Block); the second wireless signal is a RACH (Random Access Channel) preamble, and at least one of a sequence of the RACH preamble and a time-frequency resource occupied by the RACH preamble is used to determine the first antenna port group; the first signaling is non-UE-specific and the first signaling is transmitted on PDCCH (Physical Downlink Control Channel); the second information is used to determine the second time resource pool, and the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups.
17. The base station equipment of claim 16 , wherein the second transmitter transmits first information, wherein the first information is used to determine a first time resource pool, the first time resource pool comprises K sub-time resource pools, and the K sub-time resource pools are respectively reserved to the K antenna port groups, the first sub-time resource pool is one of the K sub-time resource pools, and any two sub-time resource pools of the K sub-time resource pools are orthogonal in the time domain.
18. The base station equipment of claim 17 , wherein the first information includes one or more RRC (Radio Resource Control) IE (Information Element);
or, the first information is transmitted on a PBCH (Physical Broadcast CHannel);
or, the first signaling is respectively transmitted once in the K sub-time resource pools.
19. The base station equipment of claim 16 , wherein the index of the first antenna port group in the K antenna port groups is used to generate the first signaling.
20. The base station equipment of claim 16 , further comprising:
a second processor, performing a third wireless signal;
wherein the first signaling is used to determine a fourth time resource pool; time
domain resources occupied by the third wireless signal belong to the fourth time resource pool; the performing is transmitting, or the performing is receiving;
or, a fourth transmitter, transmitting K1 reference signal/signals;
wherein the K1 reference signal/signals is/are respectively transmitted by K1 antenna port/ports; the first signaling is used to determine at least one of the K1, the K1 antenna port/ports and air interface resource/resources occupied by the K1 reference signal/signals, or the index of the first antenna port group in the K antenna port groups is used to determine at least one of the air interface resource/resources occupied by the K1 reference signal/signals and reference signal (RS)-sequence/sequences corresponding to the K1 reference signal/signals; the air interface resource/resources occupied by the K1 reference signal/signals includes/include one or more of time domain resources, frequency domain resources, and code domain resources.