CN-122002426-A - Communication method, device and storage medium

Abstract

The application provides a communication method, a device and a storage medium, which can obtain energy saving gain brought by an LP-WUS mechanism. The method comprises the steps that the network equipment generates an RRC release message, the RRC release message is used for indicating a first frequency point supporting transmission of the LP-WUS, the cell reselection priority of the first frequency point is not lower than the cell reselection priority of other frequency points, and the network equipment sends the RRC release message to the terminal equipment. Correspondingly, the terminal equipment receives the RRC release message and performs cell reselection evaluation based on the cell reselection priority of the first frequency point.

Inventors

• ZHANG TINGRUI
• MOPIDEVI RAMA KUMAR
• CHANG JUNREN
• KUANG YIRU
• SHA TONG
• LI BINGZHAO

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (20)

1. 1. A method of communication, comprising: Receiving a Radio Resource Control (RRC) release message, wherein the RRC release message is used for indicating a first frequency point supporting transmission of a low-power consumption wake-up signal (LP-WUS), and the cell reselection priority of the first frequency point is not lower than that of other frequency points; And carrying out cell reselection evaluation based on the cell reselection priority of the first frequency point.
2. 2. The method of claim 1, wherein prior to receiving the RRC release message, the method further comprises: and sending first information, wherein the first information is used for requesting to acquire a frequency point supporting transmission of the LP-WUS, or the first information is used for indicating that terminal equipment has the capability of receiving the LP-WUS.
3. 3. The method of claim 1 or 2, wherein the RCC release message is further configured to instruct starting the cell reselection evaluation procedure for a first duration after the terminal device releases to the RRC non-connected state, or starting the cell reselection evaluation procedure after the first duration.
4. 4. A method according to any of claims 1 to 3, wherein the RRC release message indicates a first frequency point supporting transmission of LP-WUS, comprising: The RRC release message comprises a first cell, wherein a frequency point carried by the first cell is a first frequency point supporting transmission of the LP-WUS, and the first cell is a newly added cell in the RRC release message.
5. 5. A method according to any of claims 1 to 3, wherein the RRC release message indicates a first frequency point supporting transmission of LP-WUS, comprising: The RRC release message includes a second cell, where the second cell includes a field carrying frequency point information, and a field for indicating that the frequency point information is a first frequency point supporting transmission of the LP-WUS.
6. 6. The method according to any one of claims 1 to 5, further comprising: and receiving second information, wherein the second information is used for indicating the cell reselection priority of the first frequency point.
7. 7. A method of communication, comprising: Generating a Radio Resource Control (RRC) release message, wherein the RRC release message is used for indicating a first frequency point supporting transmission of a low-power consumption wake-up signal (LP-WUS), and the cell reselection priority of the first frequency point is not lower than that of other frequency points; and sending the RRC release message.
8. 8. The method of claim 7, wherein prior to sending the RRC release message, the method further comprises: and receiving first information, wherein the first information is used for requesting to acquire a frequency point supporting transmission of the LP-WUS, or the first information is used for indicating that terminal equipment has the capability of receiving the LP-WUS.
9. 9. The method of claim 7 or 8, wherein the RCC release message is further configured to instruct the terminal device to initiate a cell reselection evaluation procedure for a first duration after releasing the terminal device to the RRC non-connected state, or to initiate the cell reselection evaluation procedure after the first duration.
10. 10. The method according to any of claims 7 to 9, wherein the RRC release message indicates a first frequency point supporting transmission of LP-WUS, comprising: The RRC release message comprises a first cell, wherein a frequency point carried by the first cell is a first frequency point supporting transmission of the LP-WUS, and the first cell is a newly added cell in the RRC release message.
11. 11. The method according to any of claims 7 to 9, wherein the RRC release message indicates a first frequency point supporting transmission of LP-WUS, comprising: The RRC release message includes a second cell, where the second cell includes a field carrying frequency point information, and a field for indicating that the frequency point information is a first frequency point supporting transmission of the LP-WUS.
12. 12. The method according to any one of claims 7 to 11, further comprising: and sending second information, wherein the second information is used for indicating the cell reselection priority of the first frequency point.
13. 13. A method of communication, comprising: Receiving first information, wherein the first information is used for indicating whether a terminal device is allowed to use a special cell reselection priority of a first frequency point in a first period, the first period is the time between the terminal device receiving paging and initiating random access, the first frequency point is a frequency point supporting transmission of a low-power consumption wake-up signal LP-WUS, and the cell reselection priority of the first frequency point is not lower than the cell reselection priorities of other frequency points; And determining whether to use the special cell reselection priority of the first frequency point to perform cell reselection in the first period based on the first information so as to reside in a target cell to initiate random access.
14. 14. The method of claim 13, wherein the first information is carried in a radio resource control, RRC, release message.
15. 15. The method of claim 14, wherein the determining whether to use the dedicated cell reselection priority of the first frequency point for the first period of time based on the first information comprises: Determining to perform cell reselection by using the public cell reselection priority of the first frequency point in the first time period under the condition that the first information indicates that the first time period does not allow the special cell reselection priority of the first frequency point to be used; Determining to use the special cell reselection priority of the first frequency point for cell reselection in the first time period or in the case that the first information indicates the special cell reselection priority of the first frequency point for allowing the first time period to use Determining to perform cell reselection using a common cell reselection priority of the first frequency point in the first period, if the first information indicates that the first period allows the dedicated cell reselection priority of the first frequency point to be used; The special cell reselection priority of the first frequency point is not lower than the public cell reselection priority of the first frequency point.
16. 16. The method of claim 15, wherein the determining to use the dedicated cell reselection priority for the first frequency point for the first period of time if the first information indicates that the first period of time allows the dedicated cell reselection priority for the first frequency point to be used comprises: Determining that cell reselection is performed using the dedicated cell reselection priority in the first period based on the first information if the first information indicates that the first period allows the dedicated cell reselection priority using the first frequency point, and a first timer does not timeout when the page is monitored; the first timer is configured to determine a time for deleting the dedicated cell reselection priority of the first frequency point.
17. 17. The method of claim 15, wherein the determining to use the dedicated cell reselection priority for the first frequency point for the first period of time is performed if the first information indicates that the first period of time allows use of the dedicated cell reselection priority for the first frequency point; The method further comprises the steps of: And receiving second information, wherein the second information is used for indicating the terminal equipment to ignore a first timer, and the first timer is used for determining the time for deleting the special priority of the first frequency point.
18. 18. The method of claim 15, wherein the determining to use the common cell reselection priority of the first frequency point for the first period of time for cell reselection if the first information indicates that the first period of time allows use of the dedicated cell reselection priority of the first frequency point comprises: Determining, based on the first information, that cell reselection is performed using a common cell reselection priority of the first frequency point in the first period, where the first information indicates a dedicated cell reselection priority that the first period allows use of the first frequency point, and a first timer times out before the paging is monitored; the first timer is configured to determine a time for deleting the dedicated cell reselection priority of the first frequency point.
19. 19. The method according to any one of claims 13 to 18, further comprising: Third information is received, the third information being used to indicate a first frequency point supporting transmission of LP-WUS.
20. 20. A method of communication, comprising: generating first information, wherein the first information is used for indicating whether a terminal device is allowed to use a special cell reselection priority of a first frequency point in a first period, and the first period is the time before the terminal device receives paging and initiates random access; and sending the first information.

Description

Communication method, device and storage medium Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method, an apparatus, and a storage medium. Background In order to achieve lower terminal power consumption, the third generation partnership project (3rd generation partnership project,3GPP) proposes an ultra-low power wake up signal (LP-WUS) mechanism. I.e., the reception circuitry of the terminal is divided in hardware implementation into two parts, main radio/link (MR) and low power-consumption receiver (LR/LP-WUR). The logic of the LP-WUS mechanism for power saving is that when there is no data/traffic transmission on the MR, a shut down or sleep state can be entered to significantly reduce the "standby" power consumption at the terminal while the turn-on LR is responsible for listening for the wake-up signal. When the LR receives the indication of wakeup, it wakes up the MR for data/traffic transmission. For such terminal devices, the standard states that LP-WUS cannot support full band deployment. That is, terminals residing on some of the subbands may not be able to use the LP-WUS mechanism and thus may not be able to obtain the energy saving gain from the LP-WUS. Disclosure of Invention The application provides a communication method, a device and a storage medium to obtain energy saving gain brought by an LP-WUS mechanism. In a first aspect, the present application provides a communication method, which may be applied to a terminal side, for example, a terminal or a communication module in the terminal, or a circuit or a chip (such as a modem (modem) chip, also called a baseband (baseband) chip, or a system on chip (SoC) chip or a system in package (SYSTEMIN PACKAGE, SIP) chip) containing a modem core, which is responsible for a communication function in the terminal. The method is described below by taking a terminal as an example. The method includes receiving a radio resource control (radio resource control, RRC) release message indicating a first frequency point supporting transmission of the LP-WUS, wherein the cell reselection priority of the first frequency point is not lower than that of other frequency points, and performing cell reselection evaluation based on the cell reselection priority of the first frequency point. The first frequency point supporting transmission of LP-WUS means that the terminal device can monitor LP-WUS by using LR on the first frequency point to wake up the MR in a sleep state. The first frequency point supporting transmission of the LP-WUS may also be referred to as a frequency point supporting the LP-WUS, or a LP-WUS frequency point. Based on the technical scheme, the terminal equipment starts a cell reselection flow based on the received RRC release message for indicating the first frequency point supporting transmission of the LP-WUS, and selects a cell which can reside. Because the cell reselection priority of the first frequency point indicated by the RRC release message is higher, when the terminal equipment performs cell reselection evaluation based on the cell reselection priority of the first frequency point, the terminal equipment can stay in the first frequency point with a higher probability, and then can monitor the LP-WUS on the frequency point, thereby effectively ensuring the energy-saving gain of the terminal equipment using the LP-WUS mechanism. In addition, in this embodiment, the network device informs the terminal device of the first frequency point supporting LP-WUS by adopting the RRC dedicated signaling manner, and this manner of configuring the first frequency point with the granularity of the terminal device may enable the network device to configure different frequency points supporting transmission LP-WUS for different terminal devices according to the load condition on the lower frequency point thereof, so that the terminal device may be uniformly dispersed to reside in cells of different frequency points, and further load balancing on the network device side may be effectively ensured. With reference to the first aspect, in some implementations of the first aspect, before receiving the RRC release message, the method further includes sending first information, where the first information is used to request to obtain a frequency point supporting transmission of the LP-WUS, or the first information is used to indicate that the terminal device has a capability of receiving the LP-WUS. Alternatively, the first information may be carried in the UE assistance information (UE assistance information, UAI), or the first information is the UAI. The mode that the terminal equipment sends the first information to the network equipment can enable the network equipment to provide the frequency point information supporting the LP-WUS for the network equipment by taking the UE as granularity, and the frequency point information supporting the transmission of the LP-WUS is