IP Library › Granted Patent US 10,548,066

Granted Patent B2

US 10,548,066 · App. 16/248,454 · Granted Jan 28, 2020

Control information sending/receiving method and device

Inventors: Lixia Xue (Beijing, CN); Xu Zhang (Beijing, CN); Jianguo Wang (Beijing, CN); Yi Qin (Shanghai, CN); Yongzhao Cao (Shanghai, CN)

Assignee: HUAWEI TECHNOLOGIES CO., LTD.

H04W48/10 H04J11/0073 H04J11/0079 H04W56/001 H04W72/005 H04N21/4622 H04W72/042

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Quick Facts

Patent No.: US 10,548,066
App. No.: 16/248,454
Granted: Jan 28, 2020
Kind: B2

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Abstract

A control information sending/receiving method and device are provided for indicating a time-frequency location of a control channel to a terminal device in a 5G NR system or a future evolved LTE system. The method includes: receiving, by a terminal device, broadcast information; determining, from at least two predefined time-domain locations, a time-domain location of a broadcast channel carrying the broadcast information; determining a time-domain location of a control channel based on the time-domain location of the broadcast channel; and performing control channel detection in the determined time-domain location of the control channel.

Claims (72)

1. A control information receiving method comprising:

receiving broadcast information carried in a broadcast channel, wherein the broadcast information includes indication information used for indicating a time-domain resource set of control channels, and the broadcast information is located in a synchronization signal block;

determining a time-domain location of a control channel in a timeslot from the time-domain resource set based on a time-domain location of the synchronization signal block in a timeslot, wherein the time-domain location of the synchronization signal block is one of at least two predefined time-domain locations in at least one timeslot; and

performing control channel detection in the time-domain location of the control channel.

2. The method according to claim 1 , wherein there are at least two predefined time-domain locations in the timeslot in which the synchronization signal block is located.

3. The method according to claim 1 , wherein the time-domain location of the synchronization signal block is associated with a start symbol of the timeslot in which the synchronization signal block is located, and the time-domain location of the control channel is associated with a start symbol of the timeslot in which the control channel is located.

4. The method according to claim 1 , wherein one of the following situations exist:

(a) the time-domain location of the control channel is orthogonal to a time-domain location of the broadcast channel and a synchronization signal associated with the broadcast channel;

(b) the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and the synchronization signal associated with the broadcast channel; and

(c) a portion of the time-domain location of the control channel is orthogonal to the time-domain location of the broadcast channel and the synchronization signal associated with the broadcast channel, and the other portion of the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and the synchronization signal associated with the broadcast channel.

5. The method according to claim 1 , wherein determining the time-domain location of the control channel from the time-domain resource set based on the time-domain location of the synchronization signal block comprises:

determining the time-domain location of the control channel based on a correspondence between the time-domain location of the synchronization signal block and the time-domain location of the control channel.

6. The method according to claim 1 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information includes a symbol with a number 0 and a symbol with a number 1 in the timeslot in which the control channel is located, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is the symbol with the number 0 in the timeslot in which the control channel is located; or

when the time-domain location of the synchronization signal block is symbols with numbers 6 to 9 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is the symbol with the number 1 in the timeslot in which the control channel is located.

7. The method according to claim 1 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information includes symbols with numbers 0 to 1 and symbols with numbers 2 to 3 in the timeslot in which the control channel is located, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 4 to 7 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is the symbols with the numbers 0 to 1 in the timeslot in which the control channel is located; or

when the time-domain location of the synchronization signal block is symbols with numbers 8 to 11 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is the symbols with the numbers 2 to 3 in the timeslot in which the control channel is located.

8. The method according to claim 1 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is symbols with numbers 0 to 1 in the timeslot in which the control channel is located.

9. The method according to claim 1 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width used by the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is a symbol with a number 0 in the timeslot in which the control channel is located.

10. The method according to claim 1 , wherein a reference signal of the broadcast channel is quasi-co-located (QCL) with a reference signal of the control channel.

11. A control information receiving apparatus comprising:

a storage medium including executable instructions; and

a processor;

wherein the executable instructions, when executed by the processor, cause the apparatus to:

receive broadcast information carried in a broadcast channel, wherein the broadcast information comprises indication information used for indicating a time-domain resource set of control channels, and the broadcast information is located in a synchronization signal block;

determine a time-domain location of a control channel from the time-domain resource set based on a time-domain location of the synchronization signal block in a timeslot, wherein the time-domain location of the synchronization signal block is one of at least two predefined time-domain locations in at least one timeslot; and

perform control channel detection in the time-domain location of the control channel.

12. The apparatus according to claim 11 , wherein there are at least two predefined time-domain locations in the timeslot in which the synchronization signal block is located.

13. The apparatus according to claim 11 , wherein the time-domain location of the synchronization signal block is associated with a start symbol of the timeslot in which the synchronization signal block is located, and the time-domain location of the control channel is associated with a start symbol of the timeslot in which the control channel is located.

14. The apparatus according to claim 11 , wherein one of the following situations exist:

(a) the time-domain location of the control channel is orthogonal to a time-domain location of the broadcast channel and a synchronization signal associated with the broadcast channel;

15. The apparatus according to claim 11 , wherein the executable instructions, when executed by the processor, further cause the apparatus to:

determine the time-domain location of the control channel based on a correspondence between the time-domain location of the broadcast channel and the time-domain location of the control channel.

16. The apparatus according to claim 11 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information is a symbol with a number 0 and a symbol with a number 1 in the timeslot in which the control channel is located, wherein

17. The apparatus according to claim 11 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information is symbols with numbers 0 to 1 and symbols with numbers 2 to 3 in the timeslot in which the control channel is located, wherein

18. The apparatus according to claim 11 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is symbols with numbers 0 to 1 in the timeslot in which the control channel is located.

19. The apparatus according to claim 11 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width used by the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is a symbol with a number 0 in the timeslot in which the control channel is located.

20. The apparatus according to claim 11 , wherein a reference signal of the broadcast channel is quasi-co-located (QCL) with a reference signal of the control channel.

21. A non-transitory computer-readable storage medium comprising executable instructions, wherein the executable instructions, when executed by a computer, cause the computer to:

determine a time-domain location of a control channel in a timeslot from the time-domain resource set based on a time-domain location of the synchronization signal block in a timeslot, wherein the time-domain location of the synchronization signal block is one of at least two predefined time-domain locations in at least one timeslot; and

perform control channel detection in the time-domain location of the control channel.

22. The non-transitory computer-readable storage medium according to claim 21 , wherein there are at least two predefined time-domain locations in the timeslot in which the synchronization signal block is located.

23. The non-transitory computer-readable storage medium according to claim 21 , wherein the time-domain location of the synchronization signal block is associated with a start symbol of the timeslot in which the synchronization signal block is located, and the time-domain location of the control channel is associated with a start symbol of the timeslot in which the control channel is located.

24. The non-transitory computer-readable storage medium according to claim 21 , wherein one of the following situations exist:

(a) the time-domain location of the control channel is orthogonal to a time-domain location of the broadcast channel and a synchronization signal associated with the broadcast channel;

25. The non-transitory computer-readable storage medium according to claim 21 , wherein determining the time-domain location of the control channel from the time-domain resource set based on the time-domain location of the synchronization signal block comprises:

26. The non-transitory computer-readable storage medium according to claim 21 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information is a symbol with a number 0 and a symbol with a number 1 in the timeslot in which the control channel is located, wherein

27. The non-transitory computer-readable storage medium according to claim 21 , wherein a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set of the control channel indicated by the broadcast information is symbols with numbers 0 to 1 and symbols with numbers 2 to 3 in the timeslot in which the control channel is located, wherein

28. The non-transitory computer-readable storage medium according to claim 21 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is symbols with numbers 0 to 1 in the timeslot in which the control channel is located.

29. The non-transitory computer-readable storage medium according to claim 21 , wherein a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width used by the control channel is 15 kHz, wherein

when the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in the timeslot in which the synchronization signal block is located, the time-domain location of the control channel is a symbol with a number 0 in the timeslot in which the control channel is located.

30. The non-transitory computer-readable storage medium according to claim 21 , wherein a reference signal of the broadcast channel is quasi-co-located (QCL) with a reference signal of the control channel.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2019

From: XUE, LIXIA; ZHANG, XU; WANG, JIANGUO; QIN, YI; CAO, YONGZHAO

To: HUAWEI TECHNOLOGIES CO., LTD.

Reel/Frame 050754/0127 →

Priority Claims (1)

CN 2017 1 0687956 · Aug 11, 2017 · national

Continuity (2)

Continuation PCTCN2018097425 · Jul 27, 2018

Related Publication 20190150067A1 · May 16, 2019

Cited By (1)

US 12,323,902