IP Library Granted Patent US 11,949,469
Granted Patent B2
US 11,949,469 · App. 18/138,080 · Granted Apr 2, 2024

Method and device for multi-antenna transmission in UE and base station

Inventor: Xiaobo Zhang (Shanghai, CN)
Assignee: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
H04B7/0413H04B7/0408H04B7/0456H04B7/06H04B7/0617H04L5/0044H04L5/0048H04L27/2602H04L5/0007H04L27/2676
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Quick Facts
Patent No.
US 11,949,469
App. No.
18/138,080
Granted
Apr 2, 2024
Kind
B2
Abstract

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.

Claims (65)

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; the first sub-time resource pool is non-contiguous in time domain; 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, the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups, and the second time resource pool is non-contiguous in time domain.

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; any one of the K sub-time resource pools is non-contiguous in 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:

receiving 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; a physical layer channel corresponding to the third wireless signal includes a PDSCH;

or receiving K 1 reference signal/signals;

wherein the K 1 reference signal/signals is/are respectively transmitted by K 1 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 K 1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K 1 reference signal/signals; the air interface resource/resources occupied by the K 1 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; the first sub-time resource pool is non-contiguous in time domain; 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, the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups, and the second time resource pool is non-contiguous in time domain.

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; any one of the K sub-time resource pools is non-contiguous in 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:

transmitting 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; a physical layer channel corresponding to the third wireless signal includes a PDSCH;

or, transmitting K 1 reference signal/signals;

wherein the K 1 reference signal/signals is/are respectively transmitted by K 1 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 K 1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K 1 reference signal/signals; the air interface resource/resources occupied by the K 1 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; the first sub-time resource pool is non-contiguous in time domain; 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, the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups, and the second time resource pool is non-contiguous in time domain.

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; any one of the K sub-time resource pools is non-contiguous in 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, receiving 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; a physical layer channel corresponding to the third wireless signal includes a PDSCH;

or a third receiver, receiving K 1 reference signal/signals;

wherein the K 1 reference signal/signals is/are respectively transmitted by K 1 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 K 1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K 1 reference signal/signals; the air interface resource/resources occupied by the K 1 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; the first sub-time resource pool is non-contiguous in time domain; 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, the second time resource pool is unrelated to the index of the first antenna port group in the K antenna port groups, and the second time resource pool is non-contiguous in time domain.

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; any one of the K sub-time resource pools is non-contiguous in 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, transmitting 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; a physical layer channel corresponding to the third wireless signal includes a PDSCH;

or, a fourth transmitter, transmitting K 1 reference signal/signals;

wherein the K 1 reference signal/signals is/are respectively transmitted by K 1 antenna port/ports; the first signaling is used to determine at least one of the K 1 , the K 1 antenna port/ports and air interface resource/resources occupied by the K 1 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 K 1 reference signal/signals and reference signal (RS) sequence/sequences corresponding to the K 1 reference signal/signals; the air interface resource/resources occupied by the K 1 reference signal/signals includes/include one or more of time domain resources, frequency domain resources, and code domain resources.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2025
From: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
To: APOGEE NETWORKS, LLC
Reel/Frame 070878/0649 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 2, 2023
From: ZHANG, XIAOBO
To: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY COMPANY LIMITED
Reel/Frame 064460/0122 →
Priority Claims (1)
CN 201611049893.4 · Nov 24, 2016 · national
Continuity (4)
Continuation 17700507 · Mar 22, 2022
Continuation 16420189 · May 23, 2019
Continuation PCTCN2017108514 · Oct 31, 2017
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