SIGNAL TRANSMISSION METHOD, NETWORK DEVICE, AND TERMINAL DEVICE

• US 20190327060A1
• Filed: 07/03/2019
• Published: 10/24/2019
• Est. Priority Date: 01/06/2017
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: LIU, Jianqin
• Granted Patent: US 10,979,193 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04B 7/088 using beam selection
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 25/03 Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 80/08 Upper layer protocols network arrangements or communication protocols for networked applications H04L67/00

Abstract

The present disclosure relates to signal transmission methods, network devices, and terminal devices. One example method includes sending, by a network device, N first reference signals to a terminal device, where N is a positive integer greater than or equal to 1, sending, by the network device, physical layer control signaling to the terminal device, where the physical layer control signaling is used to trigger the terminal device to send a channel quality measurement result of the N first reference signals to the network device, and is used to instruct the terminal device to send M second reference signals to the network device, and M is a positive integer greater than or equal to 1, receiving, by the network device, the channel quality measurement result from the terminal device, and receiving, by the network device, the M second reference signals from the terminal device.

Claims

1. A signal transmission method, comprising:

receiving, by a terminal device and from a network device, an indication information, wherein the indication information is used to indicate an association between transmitting M second reference signals and a resource index of a first reference signal, wherein the first reference signal is sent by the network device to the terminal device, wherein M is a positive integer greater than or equal to 1, and wherein according to the association, a formed transmit beam for the M second reference signals is the same as a formed receive beam for the first reference signal;

receiving, by the terminal device, physical layer control signaling and from the network device, wherein the physical layer control signaling is used to indicate the terminal device transmitting one or more second reference signal to the network device; and

transmitting, by the terminal device, one or more second reference signal to the network device.

2. The method according to claim 1, wherein the method comprises:

transmitting, by the terminal device, an indication information indicating that reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

3. The method according to claim 1, wherein the method comprises:

receiving, by the terminal device, physical layer control signaling and from the network device, wherein the physical layer control signaling is used to trigger the terminal device to transmit a channel quality measurement result of N first reference signals to the network device, and wherein N is a positive integer greater than or equal to 1.

4. The method according to claim 3, wherein the channel quality measurement result comprises the resource index of the first reference signal from the N first reference signals.

5. A signal transmission method, comprising:

receiving, by a terminal device and from a network device, N first reference signals, wherein N is a positive integer greater than or equal to 1;

obtaining, by the terminal device, a channel quality measurement result of the N first reference signals;

receiving, by the terminal device and from the network device, physical layer control signaling, wherein the physical layer control signaling is used to trigger the terminal device to transmit the channel quality measurement result of the N first reference signals to the network device, wherein the physical layer control signaling is further used to instruct the terminal device to transmit M second reference signals to the network device, and wherein M is a positive integer greater than or equal to 1;

transmitting, by the terminal device, the channel quality measurement result to the network device; and

transmitting, by the terminal device, the M second reference signals to the network device.

6. The method according to claim 5, wherein the channel quality measurement result comprises a resource index of one of the N first reference signals.

7. The method according to claim 5, wherein the method comprises:

receiving, by the terminal device, an indication information from the network device, wherein the indication information is used to indicate an association between transmitting M second reference signals and the channel quality measurement result of N first reference signal.

8. The method according to claim 5, wherein a formed transmit beam for the M second reference signals is the same as a formed receive beam for one of the N first reference signal.

9. The method according to claim 5, wherein the method comprises:

transmitting, by the terminal device, an indication information indicating whether reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

10. The method according to claim 5, wherein a moment n for transmitting the M second reference signals and a moment k for transmitting the channel quality measurement result meet the following condition:

n=k+m, wherein;

m is a positive integer greater than 0, or m is equal to 0, or m is a negative integer less than 0.

11. The method according to claim 5, wherein at least one of:

transmission bandwidth of the second reference signal is less than or equal to transmission bandwidth of the first reference signal;

or a frequency domain resource used for transmitting the second reference signal is a subset of a frequency domain resource used for transmitting the first reference signal.

12. A network device, comprising at least one processor coupled to a memory and configured to read an instruction in the memory to cause the network device to:

transmit N first reference signals to a terminal device, wherein N is a positive integer greater than or equal to 1;

transmit physical layer control signaling to the terminal device, wherein the physical layer control signaling is used to trigger the terminal device to transmit a channel quality measurement result of the N first reference signals to the network device, wherein the physical layer control signaling is further used to instruct the terminal device to transmit M second reference signals to the network device, and wherein M is a positive integer greater than or equal to 1;

after transmitting the physical layer control signaling, receive the channel quality measurement result sent by the terminal device; and

receive the M second reference signals sent by the terminal device.

13. The network device according to claim 12, wherein the channel quality measurement result comprises a resource index of one of the N first reference signals.

14. The network device according to claim 12, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the network device to:

transmit an indication information to the terminal device, wherein the indication information is used to indicate an association between transmitting M second reference signals and the channel quality measurement result of N first reference signal.

15. The network device according to claim 12, wherein a formed transmit beam for the M second reference signals is the same as a formed receive beam for one of the N first reference signal.

16. The network device according to claim 12, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the network device to:

receive an indication information indicating whether reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

17. The network device according to claim 12, wherein a moment n for transmitting the M second reference signals received by the network device and a moment k for transmitting the channel quality measurement result received by the network device meet the following condition:

n=k+m, wherein;

m is a positive integer greater than 0, or m is equal to 0, or m is a negative integer less than

18. The network device according to claim 12, wherein at least one of:

transmission bandwidth of the second reference signal is less than or equal to transmission bandwidth of the first reference signal;

or

a frequency domain resource used for transmitting the second reference signal is a subset of a frequency domain resource used for transmitting the first reference signal.

19. A terminal device, comprising at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

receive an indication information from a network device, wherein the indication information is used to indicate an association between transmitting M second reference signals and a resource index of a first reference signal, wherein the first reference signal is sent by the network device to the terminal device, wherein M is a positive integer greater than or equal to 1, and wherein according to the association, a formed transmit beam for the M second reference signals is the same as a formed receive beam for the first reference signal;

receive physical layer control signaling from the network device, wherein the physical layer control signaling is used to indicate the terminal device transmiting transmitting one or more second reference signal to the network device; and

transmit one or more second reference signal to the network device.

20. The terminal device according to claim 19, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

transmit an indication information indicating that reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

21. The terminal device according to claim 19, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

receive physical layer control signaling from the network device, wherein the physical layer control signaling is used to trigger the terminal device to transmit a channel quality measurement result of N first reference signals to the network device, and wherein N is a positive integer greater than or equal to 1.

22. The terminal device according to claim 21, wherein the channel quality measurement result comprises the resource index of the first reference signal from the N first reference signals.

23. A terminal device, comprising at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

receive N first reference signals sent by a network device, wherein N is a positive integer greater than or equal to 1;

obtain a channel quality measurement result of the N first reference signals;

receive physical layer control signaling sent by the network device, wherein the physical layer control signaling is used to trigger the terminal device to transmit the channel quality measurement result of the N first reference signals to the network device, wherein the physical layer control signaling is further used to instruct the terminal device to transmit M second reference signals to the network device, and wherein M is a positive integer greater than or equal to 1;

before or after receiving the physical layer control signaling, transmit the channel quality measurement result to the network device; and

transmit the M second reference signals to the network device.

24. The terminal device according to claim 23, wherein the channel quality measurement result comprises a resource index of one of the N first reference signals.

25. The terminal device according to claim 23, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

receive an indication information from the network device, wherein the indication information is used to indicate an association between transmitting M second reference signals and the channel quality measurement result of N first reference signal.

26. The terminal device according to claim 23, wherein a formed transmit beam for the M second reference signals is the same as a formed receive beam for one of the N first reference signal.

27. The terminal device according to claim 23, wherein the at least one processor coupled to a memory and configured to read an instruction in the memory to cause the terminal device to:

transmit an indication information indicating whether reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

28. The terminal device according to claim 23, wherein a moment n for transmitting the M second reference signals by the terminal device and a moment k for transmitting the channel quality measurement result by the terminal device meet the following condition:

n=k+m, wherein;

m is a positive integer greater than 0, or m is equal to 0, or m is a negative integer less than 0.

29. The terminal device according to claim 23, wherein at least one of:

transmission bandwidth of the second reference signal is less than or equal to transmission bandwidth of the first reference signal;

or

a frequency domain resource used for transmitting the second reference signal is a subset of a frequency domain resource used for transmitting the first reference signal.

30. A non-transitory computer readable storage medium, comprising a computer program stored thereon which, when executed by a computer, causes the computer to:

receive N first reference signals sent by a network device, wherein N is a positive integer greater than or equal to 1;

obtain a channel quality measurement result of the N first reference signals;

receive physical layer control signaling sent by the network device, wherein the physical layer control signaling is used to trigger the computer to transmit the channel quality measurement result of the N first reference signals to the network device, wherein the physical layer control signaling is further used to instruct the computer to transmit M second reference signals to the network device, and wherein M is a positive integer greater than or equal to 1;

transmit the channel quality measurement result to the network device; and

transmit the M second reference signals to the network device.

31. The non-transitory computer readable storage medium according to claim 30, wherein the channel quality measurement result comprises a resource index of one of the N first reference signals.

32. The non-transitory computer readable storage medium according to claim 30, wherein the computer program stored thereon which, when executed by a computer, causes the computer to:

receive an indication information from the network device, wherein the indication information is used to indicate an association between transmitting M second reference signals and the channel quality measurement result of N first reference signal.

33. The non-transitory computer readable storage medium according to claim 30, wherein a formed transmit beam for the M second reference signals is the same as a formed receive beam for one of the N first reference signal.

34. The non-transitory computer readable storage medium according to claim 30, wherein the computer program stored thereon which, when executed by a computer, causes the computer to:

transmit an indication information indicating whether reciprocity between a receive beam and a transmit beam on the terminal device side stands to the network device.

35. The non-transitory computer readable storage medium according to claim 30, wherein a moment n for transmitting the M second reference signals and a moment k for transmitting the channel quality measurement result meet the following condition:

n=k+m, wherein;

m is a positive integer greater than 0, or m is equal to 0, or m is a negative integer less than 0.

36. The non-transitory computer readable storage medium according to claim 30, wherein at least one of:

transmission bandwidth of the second reference signal is less than or equal to transmission bandwidth of the first reference signal;

or

a frequency domain resource used for transmitting the second reference signal is a subset of a frequency domain resource used for transmitting the first reference signal.