Granted Patent B2

US 12,750,177 · App. 17/976,027 · Granted Sep 29, 2026

Inventors: Shaozhong Lu (Beijing, CN); Xinqian Xie (Beijing, CN); Zhiheng Guo (Beijing, CN)

Assignee: HUAWEI TECHNOLOGIES CO., LTD.

H04L5/0048

Abstract

Claims (68)

1 . A signal receiving method comprising:

sending, by a terminal device, a sounding reference signal (SRS) on at least one first SRS resource and at least one second SRS resource, wherein indication information is generated by a network device based on the SRS, wherein the at least one first SRS resource and the at least one second SRS resource are/is configured by a network device, and wherein the terminal device switches only a transmit antenna port to send the SRS, but does not switch a receive antenna port to receive a channel state information-reference signal (CSI-RS);

receiving, by the terminal device, the indication information from the network device, wherein the indication information indicates at least one sounding reference signal (SRS) resource, and the at least one SRS resource comprises the at least one first SRS resource and the at least one second SRS resource, wherein each of the at least one first SRS resource comprises at least one first SRS port, and each of the at least one first SRS port is associated with one antenna port; and each of the at least one second SRS resource comprises at least one second SRS port, and each of the at least one second SRS port is associated with at least two antenna ports; and

receiving, by the terminal device, a downlink signal from the network device by using a receive antenna, the receive antenna corresponding to the at least one SRS resource comprising the at least one first SRS resource and the at least one second SRS resource.

2 . The method according to claim 1 , wherein the receiving, by the terminal, of the downlink signal from the network device by using the receive antenna corresponding to the at least one SRS resource comprises:

determining, by the terminal device, a first receive antenna port based on the first SRS resource in the at least one SRS resource, determining a second receive antenna port and a receive beam based on the second SRS resource in the at least one SRS resource, and receiving the downlink signal from the network device by using the first receive antenna port, the second receive antenna port, and the receive beam.

3 . The method according to claim 1 , wherein each of the at least one second SRS port corresponds to a plurality of first SRS ports, and different spatial relationship information is configured for second SRS resources to which a plurality of second SRS ports corresponding to a same first SRS port belong.

4 . The method according to claim 1 , wherein the indication information comprises:

an index value, in a first subset, of a combination of an SRS resource ID and an SRS port ID of the SRS resource corresponding to the receive antenna; and

the first subset comprises:

the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of a plurality of receive antenna combinations, and an index value of a combination of the SRS resource ID and the SRS Port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations, wherein

the index value of the combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations is unique in the first subset.

5 . The method according to claim 1 , wherein:

each of the first and second SRS ports is virtualized and indicates the antenna port for sending the SRS; and

each of the antenna ports is an actual physical antenna port.

6 . A signal method comprising:

receiving, by a network device, a sounding reference signal (SRS) from a terminal device on the at least one first SRS resource and at least one second SRS resource,

generating, by the network device, indication information based on the SRS, wherein the at least one first SRS resource and the at least one second SRS resource are configured by the network device, and wherein the terminal device needs to switch only a transmit antenna port to send the SRS, but does not need to switch a receive antenna port to receive a channel state information-reference signal (CSI-RS);

sending, by the network device, the indication information to the terminal device, wherein the indication information indicates at least one sounding reference signal (SRS) resource, and the at least one SRS resource comprises the at least one first SRS resource and the at least one second SRS resource, wherein each of the at least one first SRS resource comprises at least one first SRS port, and each of the at least one first SRS port is associated with one antenna port; and each of the at least one second SRS resource comprises at least one second SRS port, and each of the at least one second SRS port is associated with at least two antenna ports; and

sending, by the network device, a downlink signal to the terminal device for reception of the downlink signal by the terminal device using a receive antenna, the receive antenna corresponding to the at least one SRS resource comprising the at least one first SRS resource and the at least one second SRS resource.

7 . The method according to claim 6 , further comprising:

determining, by the network device, the first SRS resource corresponding to a first receive antenna port of the terminal device and the second SRS resource corresponding to a second receive antenna port and a receive beam of the terminal device; and

generating, by the network device, the indication information based on the first SRS resource corresponding to the first receive antenna port of the terminal device and the second SRS resource corresponding to the second receive antenna port and the receive beam of the terminal device.

8 . The method according to claim 6 , wherein each of the at least one second SRS port corresponds to a plurality of first SRS ports, and different spatial relationship information is configured for second SRS resources to which a plurality of second SRS ports corresponding to a same first SRS port belong.

9 . The method according to claim 6 , wherein the indication information comprises:

an index value, in a first subset, of a combination of an SRS resource ID and an SRS Port ID of the SRS resource corresponding to the receive antenna; and

the first subset comprises:

the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of a plurality of receive antenna combinations, and an index value of a combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations, wherein

the index value of the combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations is unique in the first subset.

10 . The method according to claim 6 , wherein:

each of the first and second SRS ports is virtualized and indicates the antenna port for sending the SRS; and

each of the antenna ports is an actual physical antenna port.

11 . A signal receiving apparatus comprising:

at least one processor; and

a memory storing programming instructions for execution by the at least one processor, the programming instructions instructing the signal receiving apparatus to perform operations comprising:

sending a sounding reference signal (SRS) on at least one first SRS resource and at least one second SRS resource, wherein indication information is generated by a network device based on the SRS, wherein the at least one first SRS resource and the at least one second SRS resource are configured by a network device, and wherein the signal receiving apparatus is configured to switch a only a transmit antenna port to send the SRS, but not to switch a receive antenna port to receive a channel state information-reference signal (CSI-RS);

receiving the indication information from the network device, wherein the indication information indicates at least one sounding reference signal (SRS) resource, and the at least one SRS resource comprises the at least one first SRS resource and the at least one second SRS resource, wherein each of the at least one first SRS resource comprises at least one first SRS Port, and each of the at least one first SRS port is associated with one antenna port; and each of the at least one second SRS resource comprises at least one second SRS port, and each of the at least one second SRS port is associated with at least two antenna ports; and

receiving a downlink signal from the network device by using a receive antenna, the receive antenna corresponding to the at least one SRS resource comprising the at least one first SRS resource and the at least one second SRS resource.

12 . The apparatus according to claim 11 , wherein the receiving of the downlink signal from the network device by using the receive antenna corresponding to the at least one SRS resource comprises:

determining a first receive antenna port based on the first SRS resource in the at least one SRS resource, determining a second receive antenna port and a receive beam based on the second SRS resource in the at least one SRS resource, and receiving the downlink signal from the network device by using the first receive antenna port, the second receive antenna port, and the receive beam.

13 . The apparatus according to claim 11 , wherein each of the at least one second SRS port corresponds to a plurality of first SRS ports, and different spatial relationship information is configured for second SRS resources to which a plurality of second SRS ports corresponding to a same first SRS Port belong.

14 . The apparatus according to claim 11 , wherein the indication information comprises:

an index value, in a first subset, of a combination of a SRS resource ID and a SRS port ID of the SRS resource corresponding to the receive antenna; and

the first subset comprises:

the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of a plurality of receive antenna combinations, and the index value of a combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations, wherein

the index value of the combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations is unique in the first subset.

15 . The apparatus according to claim 11 , wherein:

each of the first and second SRS ports is virtualized and indicates the antenna port for sending the SRS; and

each of the antenna ports is an actual physical antenna port.

16 . A signal sending apparatus comprising:

at least one processor; and

a memory storing programming instructions for execution by the at least one processor, the programming instructions instructing the signal sending apparatus to perform operations comprising:

receiving a sounding reference signal (SRS) from a terminal device on at least one first SRS resource and at least one second SRS resource,

generating indication information based on the SRS, wherein the at least one first SRS resource and the at least one second SRS resource are configured by a network device, and wherein the terminal device needs to switch only a transmit antenna port to send the SRS, but does not need to switch a receive antenna port to receive a channel state information-reference signal (CSI-RS);

sending the indication information to the terminal device, wherein the indication information indicates at least one sounding reference signal (SRS) resource, and the at least one SRS resource comprises the at least one first SRS resource and the at least one second SRS resource, wherein each of the at least one first SRS resource comprises at least one first SRS port, and each first SRS port is associated with one antenna port; and each of the at least one second SRS resource comprises at least one second SRS port, and each second SRS port is associated with at least two antenna ports; and

sending a downlink signal to the terminal device for reception of the downlink by the terminal device using a receive antenna corresponding to the at least one SRS resource comprising the at least one first SRS resource and the at least one second SRS resource.

17 . The apparatus according to claim 16 , wherein the operations further comprises:

determining the first SRS resource corresponding to a first receive antenna port of the terminal device and the second SRS resource corresponding to a second receive antenna port and a receive beam of the terminal device; and

generating the indication information based on the first SRS resource corresponding to the first receive antenna port of the terminal device and the second SRS resource corresponding to the second receive antenna port and the receive beam of the terminal device.

18 . The apparatus according to claim 16 , wherein each of the at least one second SRS port corresponds to a plurality of first SRS ports, and different spatial relationship information is configured for second SRS resources to which a plurality of second SRS ports corresponding to a same first SRS port belong.

19 . The apparatus according to claim 16 , wherein the indication information comprises:

an index value, in a first subset, of a combination of an SRS resource ID and an SRS port ID of the SRS resource corresponding to the receive antenna; and

the first subset comprises:

the SRS resource ID and the SRS Port ID of the SRS resource corresponding to each of a plurality of receive antenna combinations, and an index value of a combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations, wherein

the index value of the combination of the SRS resource ID and the SRS port ID of the SRS resource corresponding to each of the plurality of receive antenna combinations is unique in the first subset.

20 . The apparatus according to claim 16 , wherein:

each of the first and second SRS ports is virtualized and indicates the antenna port for sending the SRS; and

each of the antenna ports is an actual physical antenna port.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (17)