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CN-122028150-A - Terminal energy saving method, device and system

CN122028150ACN 122028150 ACN122028150 ACN 122028150ACN-122028150-A

Abstract

The embodiment of the application provides a terminal energy-saving method, a device and a system, which can enable the moment when a terminal device enters an activation time period to be matched with the moment when a network device sends a downlink frame of a first service according to a service period, thereby avoiding the waste of power consumption of the terminal device and meeting the requirement of the first service on time delay. The method comprises the steps that a terminal device receives first information from a network device, the first information is used for determining a first CDRX period corresponding to the terminal device, the terminal device determines the moment when the terminal device enters an activation time period according to the first CDRX period and a first calculation rule, and the first calculation rule is used for controlling the moment when the terminal device enters the activation time period to be matched with the moment when the network device sends a downlink frame of a first service according to a service period. The application is suitable for the technical field of communication.

Inventors

  • ZHANG JIAN

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260512
Application Date
20210901

Claims (13)

  1. 1. A method for terminal power saving, the method comprising: Receiving first information from network equipment, wherein the first information is used for determining a first CDRX period corresponding to terminal equipment, the first CDRX period is a non-integer period which is the same as a service period of a first service, and the first service is an augmented reality service; And determining a first subframe number of an integer value of the terminal equipment entering an activation time period according to the first CDRX period and a first calculation rule, wherein the first subframe number belongs to a subframe number in a system frame, and the first calculation rule is used for controlling the first subframe number of the terminal equipment entering the activation time period to be matched with the moment of the network equipment transmitting a downlink frame of the first service according to a service period.
  2. 2. The method of claim 1, wherein the first CDRX period corresponding to the terminal device is a first CDRX period configured by the network device for the terminal device.
  3. 3. The method of claim 2, wherein the first calculation rule satisfies the relationship: ; Or alternatively = (drx-StartOffset)modulo(drx-cycle); The SFN represents a system frame number of the terminal equipment entering the activation time period, the subframe number represents a subframe number in a system frame corresponding to the system frame number, the drx-cycle represents the first CDRX period, and the drx-StartOffset represents a subframe offset before the terminal equipment enters the activation time period.
  4. 4. A method according to claim 2 or 3, characterized in that the first information comprises a service period of the first service; Or the first information comprises a value of the first CDRX period; or the first information comprises the frequency of the first CDRX period; Or the first information comprises a preset integer value, and the preset integer value is used for the terminal equipment to determine the first CDRX period according to a preset relation.
  5. 5. The method according to any of claims 2-4, wherein the first information is carried in a radio resource control, RRC, message.
  6. 6. A method for terminal power saving, the method comprising: Receiving second information from a network device, wherein the second information is used for determining one or more CDRX periods in a plurality of CDRX periods configured by the network device for a terminal device, the one or more CDRX periods are used for determining a plurality of cycle CDRX periods, the second information comprises identification information corresponding to each CDRX period in the plurality of cycle CDRX periods and a front-back sequence of the identification information, the front-back sequence of the identification information corresponds to a cycle sequence of the plurality of cycle CDRX periods, the plurality of cycle CDRX periods are used for controlling the moment that the terminal device corresponding to each CDRX period in the plurality of cycle CDRX periods enters an activation period to be matched with the moment that the network device transmits a downlink frame of a first service according to a service period, and the first service is an extended reality service; and determining the moment when the terminal equipment enters the activation time period according to the one or more CDRX periods.
  7. 7. The method of claim 6, wherein the second information is carried in a radio resource control, RRC, message; Or the second information is carried in a media access layer control unit MAC CE message.
  8. 8. The method according to claim 6 or 7, characterized in that the method further comprises: And receiving third information from the network device, wherein the third information is used for the network device to configure the plurality of CDRX periods for the terminal device, and the plurality of CDRX periods comprise the one or more CDRX periods.
  9. 9. The method of claim 8, wherein the third information comprises identification information corresponding to each CDRX period of the plurality of CDRX periods, and configuration information for the CDRX period corresponding to the identification information.
  10. 10. The method according to claim 8 or 9, characterized in that the third information is carried in an RRC message.
  11. 11. A method for terminal power saving, the method comprising: Receiving fourth information from network equipment, wherein the fourth information is used for indicating the moment when a terminal equipment enters an activation time period next after receiving a first downlink frame of a first service, and the terminal equipment enters a non-activation time period after receiving the first downlink frame, the moment when the terminal equipment enters the activation time period next is matched with the moment when the network equipment transmits a second downlink frame of the first service, the second downlink frame is the first downlink frame transmitted by the network equipment according to a service period after the first downlink frame, and the first service is an extended reality service; And determining the moment of the terminal equipment entering the activation time period next time after receiving the first downlink frame according to the fourth information.
  12. 12. The method of claim 11, wherein the fourth information is carried in a last packet included in the first downlink frame.
  13. 13. The method according to claim 11 or 12, characterized in that the fourth information is carried in a medium access layer control unit, MAC CE, message.

Description

Terminal energy saving method, device and system The present application is a divisional application, the application number of the original application is 202111022590.4, the original application date is 2021, 9 months 1, and the whole content of the original application is incorporated by reference into the present application. Technical Field The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a system for terminal energy saving. Background With the development of communication technology, extended reality (XR) services, such as Virtual Reality (VR), are also emerging. In order to improve user experience, a terminal device running XR service is required to be light (such as VR glasses), and a communication system running XR service is required to have high throughput and low time delay, so that power consumption required by the terminal device running XR service is high to achieve the requirements. Therefore, the power consumption of the terminal device should be reduced as much as possible for the normal operation of the terminal device. Currently, discontinuous reception (connected discontinuous reception, CDRX) mechanism in connected state is an effective energy saving technology. Terminal devices configuring the CDRX mechanism are classified into an "awake state" and a "sleep state", and terminal devices in the "awake state" may monitor a physical downlink control channel (physical downlink control channel, PDCCH) to transmit traffic data. After the terminal equipment keeps the 'wake-up state' for a certain time, the terminal equipment enters the 'sleep state', and the terminal equipment in the 'sleep state' does not monitor the PDCCH, so that the terminal equipment can achieve the purpose of saving power consumption. Wherein, the terminal device being in the "wake-up state" may also be referred to as the terminal device being in the "active period", and the terminal device being in the "sleep state" may also be referred to as the terminal device being in the "inactive period". Currently, the period of time in which the terminal device keeps in the "awake state" and the period of time in which the terminal device keeps in the "sleep state" form one CDRX period, or, the interval between the point of time in which the terminal device previously enters in the "awake state" and the point of time in which the terminal device next enters in the "awake state" is one CDRX period. In the CDRX mechanism defined so far, the CDRX period is an integer. In order to save power consumption of the terminal device, a CDRX mechanism may be configured for the terminal device running the XR service. However, the downlink frames in the XR service at present have a periodic characteristic, and the service periods are all decimal. For example, at a traffic frame rate of 120fps, the traffic period for one frame is 8.33 milliseconds (ms), and at a traffic frame rate of 60fps, the traffic period for one frame is 16.67ms. The CDRX periods are all integers (for example, 6ms, 7ms, 8ms, and 10 ms.) so that when the CDRX mechanism is configured for the terminal device running the XR service, even if the CDRX period closest to the service period of the XR service is configured for the terminal device, for example, when the service period of the XR service is 8.33ms, the CDRX period is configured to be 8ms, and the CDRX period of the terminal device cannot be matched with the service period of the XR service. Or, the terminal device enters into an "awake state", and the time of data transmission is not matched with the time of XR service data to be transmitted. The situation that the CDRX period of the terminal equipment is not matched with the service period of the XR service can occur that when the terminal equipment is in an awake state, no service frame of the XR service is to be transmitted, so that the power consumption of the terminal equipment is wasted. And when the service frame of the XR service to be transmitted is in a sleep state, the terminal equipment cannot receive the service frame, so that the time delay of the XR service does not meet the requirement of the XR service on the time delay. In summary, according to the existing technical scheme, the CDRX period of the terminal device is not matched with the service period of the XR service, which can cause the problems of wasting power consumption of the terminal device or failing to meet the requirement of the XR service on time delay. Therefore, how to make the CDRX period of the terminal device match the service period of the XR service is a problem to be solved. Disclosure of Invention The embodiment of the application provides a terminal energy saving method, device and system, which are used for solving the problem that the CDRX period of terminal equipment is not matched with the service period of XR service caused by the existing technical scheme. In order to achieve the above purpose,