Electronic device, communication method and storage medium
The present disclosure relates to electronic device, communication method and storage medium in a wireless communication system. There is provided an electronic device on user device side, comprising a processing circuitry configured to: receive, from a control device, configuration on an association between a first reference signal and a second reference signal; receive, from the control device, an indication for the first reference signal; and in response to the indication for the first reference signal, implement reception of a third reference signal by using spatial reception parameters for the second reference signal based on the association between the first reference signal and the second reference signal.
1. An electronic device on user device side, comprising:
a processing circuitry configured to:
receive, from a control device in radio resource control (RRC) layer signaling, configuration on an association between a first reference signal and a second reference signal;
receive, from the control device in a medium access control (MAC) control element (CE) activation command, a transmission configuration indication (TCI) state indication for the first reference signal; and
in response to the MAC CE activation command for the first reference signal, implement reception of a third reference signal by using spatial reception parameters for the second reference signal based on the association between the first reference signal and the second reference signal, or
in response to the MAC CE activation command for the first reference signal, implement transmission of a third reference signal by using spatial reception parameters or spatial transmission parameters for the second reference signal based on the association between the first reference signal and the second reference signal.
2. The electronic device of claim 1 , wherein implementing reception of the third reference signal by using spatial reception parameters for the second reference signal comprising determining spatial reception parameters for the third reference signal by using the spatial reception parameters for the second reference signal so as to implement the reception of the third reference signal.
3. The electronic device of claim 1 , wherein a port of the second reference signal and a port of the third reference signal have a Quasi Co-Located (QCL) relationship with respect to spatial reception parameters.
4. The electronic device of claim 1 , wherein the association between the first reference signal and the second reference signal includes a QCL relationship between the first reference signal and the second reference signal.
5. The electronic device of claim 1 , wherein the association between the first reference signal and the second reference signal is implemented by a QCL relationship between the first reference signal and a fourth reference signal and a QCL relationship between the fourth reference signal and the second reference signal.
6. The electronic device of claim 1 , wherein the first reference signal includes any of synchronization signal/physical broadcast channel block (SSB) signal and channel state information reference signal (CSI-RS).
7. The electronic device of claim 1 , wherein the second reference signal includes any of synchronization signal/physical broadcast channel block (SSB) signal and channel state information reference signal (CSI-RS), and the third reference signal includes any of demodulation reference signal (DMRS) and sounding reference signal (SRS).
8. The electronic device of claim 1 , wherein the second reference signal is a downlink reference signal, and wherein implementing the transmission of the third reference signal by using the spatial reception parameters or the spatial transmission parameters for the second reference signal includes: determining the spatial transmission parameters for the third reference signal by using the spatial reception parameters for the second reference signal, so as to implement the transmission of the third reference signal.
9. The electronic device of claim 1 , wherein the second reference signal is an uplink reference signal, and wherein implementing the transmission of the third reference signal by using the spatial reception parameters or the spatial transmission parameters for the second reference signal includes: determining the spatial transmission parameters for the third reference signal by using the spatial transmission parameters for the second reference signal, so as to implement the transmission of the third reference signal.
10. The electronic device of claim 1 , wherein a downlink wireless channel through which the second reference signal propagates is symmetrical to an uplink wireless channel through which the third reference signal propagates.
11. The electronic device of claim 1 , wherein the TCI state contains identification information of the first reference signal and spatial relation information (SpatialRelationlnfo) containing identification information of the second reference signal.
12. The electronic device of claim 1 , wherein the first reference signal and the second reference signal are the same downlink reference signal.
13. The electronic device of claim 9 , wherein the second reference signal includes sounding reference signal (SRS), and the third reference signal includes any of demodulation reference signal (DMRS) and sounding reference signal (SRS).
14. An electronic device on control device side, comprising:
a processing circuitry configured to:
send, to a user device in radio resource control (RRC) layer signaling, configuration on an association between a first reference signal and a second reference signal; and
send, to the user device in a medium access control (MAC) control element (CE) activation command, a transmission configuration indication (TCI) state indication for the first reference signal;
wherein in response to the MAC CE activation command for the first reference signal, the user device implements reception of a third reference signal by using spatial reception parameters for the second reference signal based on the association between the first reference signal and the second reference signal, or
wherein in response to the MAC CE activation command for the first reference signal, the user device implements transmission of a third reference signal by using spatial reception parameters or spatial transmission parameters for the second reference signal based on the association between the first reference signal and the second reference signal.
15. A method performed by an electronic device on user device side, the method comprising:
receiving, from a control device in radio resource control (RRC) layer signaling, configuration on an association between a first reference signal and a second reference signal;
receiving, from the control device in a medium access control (MAC) control element (CE) activation command, a transmission configuration indication (TCI) state indication for the first reference signal; and
in response to the MAC CE activation command for the first reference signal, implementing reception of a third reference signal by using spatial reception parameters for the second reference signal based on the association between the first reference signal and the second reference signal, or
in response to the MAC CE activation command for the first reference signal, implementing transmission of a third reference signal by using spatial reception parameters or spatial transmission parameters for the second reference signal based on the association between the first reference signal and the second reference signal.
16. A method performed by an electronic device on control device side, the method comprising:
sending, to a user device in radio resource control (RRC) layer signaling, configuration on an association between a first reference signal and a second reference signal; and
sending, to the user device in a medium access control (MAC) control element (CE) activation command, a transmission configuration indication (TCI) state indication for the first reference signal;
wherein in response to the MAC CE activation command for the first reference signal, the user device implements reception of a third reference signal by using spatial reception parameters for the second reference signal based on the association between the first reference signal and the second reference signal, or
wherein in response to the MAC CE activation command for the first reference signal, the user device implements transmission of a third reference signal by using spatial reception parameters or spatial transmission parameters for the second reference signal based on the association between the first reference signal and the second reference signal.