Signal sending and receiving method, apparatus, and system
A signal sending and receiving method includes: receiving, by a terminal device, at least one piece of resource configuration information for determining N reference signal resource groups, and each of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in an i th reference signal resource group in the N reference signal resource groups by using a j th antenna group corresponding to the i th reference signal resource group, where the j th antenna group includes at least one antenna. The N reference signal resource groups correspond to N antenna groups, and any two of the N antenna groups are different.
1. A signal sending method, comprising:
receiving, by a terminal device, a radio resource control signaling comprising resource configuration information for configuring N sounding reference signal (SRS) resources, wherein the N SRS resources comprise a first SRS resource and a second SRS resource;
sending, by the terminal device, a first SRS on the first SRS resource by using an antenna port corresponding to the first SRS resource; and
sending, by the terminal device, a second SRS on the second SRS resource by using an antenna port corresponding to the second SRS resource;
wherein the first SRS resource and the second SRS resource occupy different symbols and correspond to different antenna ports;
wherein a guard period between the first SRS resource and the second SRS resource is greater than or equal to Y symbols, wherein the terminal device does not perform uplink transmission during the guard period, and wherein a value of Y and a subcarrier spacing satisfy at least one of:
the subcarrier spacing is 15 kilohertz (kHz) and the value of Y is 1;
the subcarrier spacing is 30 kHz and the value of Y is 1;
the subcarrier spacing is 60 kHz and the value of Y is 1; or
the subcarrier spacing is 120 kHz and the value of Y is 2.
2. The method according to claim 1 , wherein the value of Y is determined based on the subcarrier spacing, and wherein the subcarrier spacing is for sending the first SRS resource and the second SRS resource.
3. The method according to claim 1 , wherein the N SRS resources belong to one SRS resource set.
4. The method according to claim 3 , wherein the radio resource control signaling further comprises first information indicating whether SRSs to be transmitted on all SRS resources in the SRS resource set are to be sent in an antenna switching manner.
5. The method according to claim 1 , wherein any two of the N SRS resources occupy different symbols and correspond to different antenna ports.
6. A signal receiving method, comprising:
sending, by a network device, to a terminal device, a radio resource control signaling comprising resource configuration information for determining N sounding reference signal (SRS) resources, wherein the N SRS resources comprise a first SRS resource and a second SRS resource, and wherein the first SRS resource and the second SRS resource occupy different symbols and correspond to different user equipment (UE) antenna ports;
receiving, by the network device, a first SRS from the terminal device on the first SRS resource; and
receiving, by the network device, a second SRS from the terminal device on the second SRS resource;
wherein a guard period between the first SRS resource and the second SRS resource is greater than or equal to Y symbols, wherein the network device does not receive uplink transmission from the terminal device during the guard period, and wherein a value of Y and a subcarrier spacing satisfy at least one of:
the subcarrier spacing is 15 kilohertz (kHz) and the value of Y is 1;
the subcarrier spacing is 30 kHz and the value of Y is 1;
the subcarrier spacing is 60 kHz and the value of Y is 1; or
the subcarrier spacing is 120 kHz and the value of Y is 2.
7. The method according to claim 6 , wherein the value of Y is determined based on the subcarrier spacing, and wherein the subcarrier spacing is for receiving the first SRS resource and the second SRS resource.
8. The method according to claim 6 , wherein the N SRS resources belong to one SRS resource set.
9. The method according to claim 8 , wherein the radio resource control signaling further comprises first information indicating whether SRSs to be transmitted on all SRS resources in the SRS resource set are to be sent in an antenna switching manner.
10. The method according to claim 6 , wherein any two of the N SRS resources occupy different symbols and correspond to different UE antenna ports.
11. An apparatus, comprising:
one or more processors, and
one or more non-transitory memories having processor-executable instructions stored thereon;
wherein the processor-executable instructions, when executed by the one or more processors, facilitate performance of the following by the apparatus:
receiving a radio resource control signaling comprising resource configuration information for configuring N sounding reference signal (SRS) resources, wherein the N SRS resources comprise a first SRS resource and a second SRS resource;
sending a first SRS on the first SRS resource by using an antenna port corresponding to the first SRS resource; and
sending a second SRS on the second SRS resource by using an antenna port corresponding to the second SRS resource;
wherein the first SRS resource and the second SRS resource occupy different symbols and correspond to different antenna ports;
wherein a guard period between the first SRS resource and the second SRS resource is greater than or equal to Y symbols, wherein the guard period is a time period during which the apparatus does not perform uplink transmission, and wherein a value of Y and a subcarrier spacing satisfy at least one of:
the subcarrier spacing is 15 kilohertz (kHz) and the value of Y is 1;
the subcarrier spacing is 30 kHz and the value of Y is 1;
the subcarrier spacing is 60 kHz and the value of Y is 1; or
the subcarrier spacing is 120 kHz and the value of Y is 2.
12. The apparatus according to claim 11 , wherein the value of Y is determined based on the subcarrier spacing, and wherein the subcarrier spacing is for sending the first SRS resource and the second SRS resource.
13. The apparatus according to claim 11 , wherein the N SRS resources belong to one SRS resource set.
14. The apparatus according to claim 13 , wherein the radio resource control signaling further comprises first information indicating whether SRSs to be transmitted on all SRS resources in the SRS resource set are to be sent in an antenna switching manner.
15. The apparatus according to claim 11 , wherein any two of the N SRS resources occupy different symbols and correspond to different antenna ports.
16. An apparatus, comprising:
one or more processors, and
one or more non-transitory memories having processor-executable instructions stored thereon;
wherein the processor-executable instructions, when executed by the one or more processors, facilitate performance of the following by the apparatus:
sending a radio resource control signaling to a terminal device comprising resource configuration information for determining N sounding reference signal (SRS) resources, wherein the N SRS resources comprise a first SRS resource and a second SRS resource, and wherein the first SRS resource and the second SRS resource occupy different symbols and correspond to different user equipment (UE) antenna ports;
receiving a first SRS from the terminal device on the first SRS resource; and
receiving a second SRS from the terminal device on the second SRS resource;
wherein a guard period between the first SRS resource and the second SRS resource is greater than or equal to Y symbols, wherein the guard period is a time period during which the terminal device does not perform uplink transmission, and wherein a value of Y and a subcarrier spacing satisfy at least one of:
the subcarrier spacing is 15 kilohertz (kHz) and the value of Y is 1;
the subcarrier spacing is 30 kHz and the value of Y is 1;
the subcarrier spacing is 60 kHz and the value of Y is 1; or
the subcarrier spacing is 120 kHz and the value of Y is 2.
17. The apparatus according to claim 16 , wherein the value of Y is determined based on the subcarrier spacing, and wherein the subcarrier spacing is for receiving the first SRS resource and the second SRS resource.
18. The apparatus according to claim 16 , wherein the N SRS resources belong to one SRS resource set.
19. The apparatus according to claim 18 , wherein the radio resource control signaling further comprises first information indicating whether SRSs to be transmitted on all SRS resources in the SRS resource set are to be sent in an antenna switching manner.
20. The apparatus according to claim 16 , wherein any two of the N SRS resources occupy different symbols and correspond to different UE antenna ports.
21. A non-transitory computer-readable medium having processor-executable instructions stored thereon, wherein, the processor-executable instructions, when executed, facilitate:
receiving, by a terminal device, a radio resource control signaling comprising resource configuration information for configuring N sounding reference signal (SRS) resources, wherein the N SRS resources comprises a first SRS resource and a second SRS resource;
sending, by the terminal device, a first SRS on the first SRS resource by using an antenna port corresponding to the first SRS resource; and
sending, by the terminal device, a second SRS on the second SRS resource by using an antenna port corresponding to the second SRS resource;
wherein the first SRS resource and the second SRS resource occupy different symbols and correspond to different antenna ports;
wherein a guard period between the first SRS resource and the second SRS resource is greater than or equal to Y symbols, wherein the guard period is a time period during which the terminal device does not perform uplink transmission, and wherein a value of Y and a subcarrier spacing satisfy at least one of:
the subcarrier spacing is 15 kilohertz (kHz) and the value of Y is 1;
the subcarrier spacing is 30 kHz and the value of Y is 1;
the subcarrier spacing is 60 kHz and the value of Y is 1; or
the subcarrier spacing is 120 kHz and the value of Y is 2.