Transmission mode determination methods and devices

1. A transmission mode determination method performed by a User Equipment (UE), comprising:

transmitting change information about power saving of the UE to a network side device, wherein the change information about power saving of the UE is used to indicate a desired transmission mode about power saving of the UE, wherein the desired transmission mode about power saving of the UE is associated with a target Bandwidth Part (BWP) of a serving cell; and

wherein the desired transmission mode about power saving of the UE comprises at least one of the number of reception antennae, the number of transmission antennae, the number of reception antenna ports, the number of transmission antenna ports, the number of reception chains, the number of transmission chains, the maximum layers of downlink and the maximum layers of uplink, and values thereof.

2. The transmission mode determination method according to claim 1 , wherein subsequent to transmitting the change information to the network side device, the transmission mode determination method further comprises:

receiving feedback information from the network side device; and setting a transmission mode indicated in the feedback information as a current transmission mode,

wherein the feedback information is transmitted through one of physical layer signaling, Media Access Control (MAC) signaling, Radio Resource Control (RRC) signaling and a Wake Up Signal (WUS).

3. The transmission mode determination method according to claim 2 , wherein the feedback information is used to indicate whether the desired transmission mode is allowed, or indicate a target transmission mode.

4. The transmission mode determination method according to claim 3 , wherein the setting the transmission mode indicated in the feedback information as the current transmission mode comprises:

when the feedback information indicates that the desired transmission mode is allowed, setting the desired transmission mode as the current transmission mode;

when the feedback information indicates that the desired transmission mode is not allowed, maintaining the current transmission mode; and

when the feedback information indicates the target transmission mode, setting the target transmission mode as the current transmission mode.

5. The transmission mode determination method according to claim 1 , wherein prior to transmitting the change information to the network side device, the transmission mode determination method further comprises:

determining the desired transmission mode in accordance with transmission mode influencing factors,

wherein the transmission mode influencing factors comprise at least one of a remaining battery of the UE, an overheating indication of the UE, an attribute of an uplink service, and an attribute of a downlink service.

6. The transmission mode determination method according to claim 2 , further comprising, upon the receipt of the feedback information, reporting channel-related parameters to the network side device in accordance with the transmission mode indicated in the feedback information, wherein the channel-related parameters comprise at least one of a Channel Quality Indicator (CQI), a Rank Indication (RI), a Precoding Matrix Indicator (PMI), and a Layer Indicator (LI), or

wherein subsequent to setting the transmission mode indicated in the feedback information as the current transmission mode, the transmission mode determination method further comprises:

when the transmission mode corresponding to scheduling signaling from the network side device is different from the transmission mode indicated in the feedback information, ignoring the scheduling signaling from the network side, wherein the scheduling signaling comprises signaling for scheduling downlink data or signaling for scheduling uplink data.

7. The transmission mode determination method according to claim 1 , wherein the desired transmission mode is further associated with the serving cell.

8. The transmission mode determination method according to claim 1 , further comprising:

transmitting at least one of a remaining battery of the UE, an overheating indication of the UE, an attribute of the uplink service and an attribute of the downlink service to the network side device.

9. The transmission mode determination method according to claim 2 , wherein the setting the transmission mode indicated in the feedback information as the current transmission mode comprises:

when the feedback information is transmitted through the WUS, determining the transmission mode indicated in the feedback information in accordance with related information about the WUS and a predetermined correspondence, the predetermined correspondence comprising a correspondence between the related information about the WUS and transmission modes; and

setting the transmission mode indicated in the feedback information as the current transmission mode,

wherein the related information about the WUS comprises at least one of an orthogonal cover code of a sequence of the WUS, a cyclic shift of the sequence of the WUS, a root sequence of the sequence of the WUS, and a scrambled sequence of the sequence of the WUS.

10. A transmission mode determination method performed by a network side device, comprising:

receiving change information about power saving of a User Equipment (UE) from the UE, wherein the change information about power saving of the UE is used to indicate a desired transmission mode about power saving of the UE, wherein the desired transmission mode about power saving of the UE is associated with a target Bandwidth Part (BWP) of a serving cell; and

wherein the desired transmission mode about power saving of the UE comprises at least one of the number of reception antennae, the number of transmission antennae, the number of reception antenna ports, the number of transmission antenna ports, the number of reception chains, the number of transmission chains, the maximum layers of downlink and the maximum layers of uplink, and values thereof.

11. The transmission mode determination method according to claim 10 , wherein subsequent to receiving the change information from the UE, the transmission mode determination method further comprises:

determining feedback information in accordance with the change information; and

transmitting the feedback information to the UE, so that the UE sets a transmission mode indicated in the feedback information as a current transmission mode.

12. The transmission mode determination method according to claim 11 , wherein the feedback information is used to indicate whether the desired transmission mode is allowed, or indicate a target transmission mode.

13. The transmission mode determination method according to claim 11 , wherein the determining the feedback information in accordance with the change information comprises:

determining the feedback information in accordance with the change information and transmission mode influencing factors.

14. The transmission mode determination method according to claim 13 , wherein the transmission mode influencing factors comprise at least one of a remaining battery of the UE, an overheating indication of the UE, an attribute of an uplink service, and an attribute of a downlink service.

15. The transmission mode determination method according to claim 11 , wherein the desired transmission mode is further associated with the serving cell.

16. The transmission mode determination method according to claim 11 , further comprising:

receiving at least one of a remaining battery of the UE, an overheating indication of the UE, an attribute of the uplink service and an attribute of the downlink service from the UE.

17. The transmission mode determination method according to claim 11 , wherein the feedback information is transmitted through one of physical layer signaling, Media Access Control (MAC) signaling, Radio Resource Control (RRC) signaling and a Wake Up Signal (WUS).

18. The transmission mode determination method according to claim 17 , wherein when the WUS is transmitted through the feedback information, a predetermined correspondence is provided between related information about the WUS and transmission modes, so that the UE determines the transmission mode indicated in the feedback information in accordance with the related information about the WUS and the predetermined correspondence,

wherein the related information about the WUS comprises at least one of an orthogonal cover code of a sequence of the WUS, a cyclic shift of the sequence of the WUS, a root sequence of the sequence of the WUS, and a scrambled sequence of the sequence of the WUS.

19. A User Equipment (UE), comprising a memory, a processor, and a computer program stored in the memory and executed by the processor, wherein the processor is configured to execute the computer program so as to implement a transmission mode determination method for the UE, comprising:

transmitting change information about power saving of the UE to a network side device, wherein the change information about power saving of the UE is used to indicate a desired transmission mode about power saving of the UE, wherein the desired transmission mode about power saving of the UE is associated with a target Bandwidth Part (BWP) of a serving cell; and

wherein the desired transmission mode about power saving of the UE comprises at least one of the number of reception antennae, the number of transmission antennae, the number of reception antenna ports, the number of transmission antenna ports, the number of reception chains, the number of transmission chains, the maximum layers of downlink and the maximum layers of uplink, and values thereof.

20. A network side device, comprising a memory, a processor, and a computer program stored in the memory and executed by the processor, wherein the processor is configured to execute the computer program so as to implement the transmission mode determination method according to claim 10 .