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EP-4404493-B1 - TERMINAL DEVICE AND COMMUNICATION METHOD

EP4404493B1EP 4404493 B1EP4404493 B1EP 4404493B1EP-4404493-B1

Inventors

  • LUO, QIAO
  • YUAN, Kai
  • ZHAO, Lianyi
  • HE, Yanzhao
  • MA, HONGYANG
  • WANG, XIAOYAN
  • WANG, DING

Dates

Publication Date
20260506
Application Date
20201116

Claims (15)

  1. A communication method, wherein the method is applied to a terminal device (131), and the method comprises: camping on a dual-connectivity network, wherein the dual-connectivity network comprises a long term evolution, LTE, link and a new radio, NR link; in response to a first operation (320) by a user in a first menu (52112), turning on a switch (521121) of the power saving mode of the terminal device (131), wherein in the first menu (52112), before the first operation, a battery remaining time corresponding to the power saving mode is displayed; in response to turn on the switch (521121) of the power saving mode of the terminal device (131), releasing (340) the NR link; and after the NR link is released, using (360) the LTE link for communication; displaying a mobile network identifier "4G"; in response to a second operation by the user, turning off the switch (521121) of power saving mode of the terminal device (131).
  2. The method according to claim 1, wherein the releasing (340) the NR link comprises: sending (350c) a first tracking area update, TAU, request message, wherein the first TAU request message carries information indicating that the terminal device (131) does not support an NR capability, in order to release the NR link.
  3. The method according to claim 1, wherein the releasing (340) the NR link comprises: releasing a radio resource that is occupied on the terminal device (131) side and that is configured for connection between the terminal device (131) and a NR access network device.
  4. The method according to claim 1, wherein the releasing (340) the NR link comprises: sending (350a) a first detach request message, wherein the first detach request message is used to request to perform a detach operation.
  5. The method according to claim 1, wherein the releasing (340) the NR link comprises: sending (350d) a first SCG failure request message, wherein the SCG failure request message is used to request to release the NR link.
  6. The method according to any one of claims 1-5, wherein the method further comprises: in response to turning on the switch (521121) of the power saving mode of the terminal device (131), turning off (330) a 5G switch.
  7. The method according to any one of claims 1-5, wherein the method further comprises: in response to turning off the switch (521121) of the power saving mode of the terminal device (131), turning on a 5G switch.
  8. The method according to any on of claims 1-5, wherein the method further comprises: in response to the turning off the switch (521121) of power saving mode of the terminal device (131), restoring the NR link.
  9. The method according to claim 8, wherein the restoring the NR link comprises: sending a second TAU request message, wherein the second TAU request message carries information indicating that the terminal device (131) supports NR; or, sending a second attach request message, wherein the second attach request message carries information indicating that the terminal device (131) supports NR.
  10. The method according to claim 9, wherein the information indicating that the terminal device (131) supports NR is a dual-connectivity-with-nr-supported, dCNR, field.
  11. The method according to any one of claims 1-10, wherein the method further comprises: displaying information on a first interface indicating the 5G will be disabled when the power saving mode is enabled.
  12. The method according to any one of claims 1-10, wherein the method further comprises: updating the displayed battery remaining time to the battery remaining time corresponding to the power saving mode, after the first operation.
  13. The method according to claim 1, wherein the method further comprises: displaying a second interface, wherein the second interface comprises the first menu (52112) including the switch (521121) and a second menu for a super power saving mode including a second switch; and tuning on the switch (521121) in response to touching the switch (521121) in the first operation or tuning on the second switch in response to touching the second switch by the user.
  14. A terminal device (131), comprising: a memory (240), a processor (210), and a computer program that is stored in the memory (240) and that can be run on the processor (210), wherein when the processor (210) executes the computer program, the terminal device (131) is enabled to implement the method according to any one of claims 1 to 13.
  15. A computer readable storage medium, wherein the computer readable storage medium comprises a computer instruction, and when the computer instruction is run on a computer on a terminal device (131), the terminal device (131) is enabled to perform the method according to any one of claims 1 to 13.

Description

This application claims priority to Chinese Patent Application CN 112 954 730 A (Application No. 201911259929.5), filed with China National Intellectual Property Administration on December 10, 2019 and entitled "TERMINAL DEVICE AND COMMUNICATION METHOD". TECHNICAL FIELD This application relates to the field of electronic devices, and more specifically, to a terminal device, a computer storage medium and a communication method. BACKGROUND In an existing communications system, to improve a data transmission rate, a terminal device may perform data transmission with a core network device by using a plurality of access network devices. For example, in existing 5G non-standalone (non-standalone, NSA) networking, a terminal device performs data transmission with a core network device by using two access network devices, one of the two access network devices support a new radio (new radio, NR) network, and the other access network device supports a long-term evolution (long term evolution, LTE) network. Compared with a conventional manner in which a terminal device performs data transmission with a core network device by using one access network device, the manner in which a terminal device performs data transmission with a core network device by using a plurality of access network devices increases power consumption of the terminal device. CN 110 536 343 A discloses a mode control method for a user equipment connected with a first base station and a second base station in the dual-connection mode, wherein the method comprises the following steps: acquiring network parameters in a process of performing communication by utilizing a first network; wherein the network parameters are parameters representing the transmission performance of the first network, and the first network is a network accessed by accessing the first base station; determining a network state of the first network based on the network parameter; and when the network state is a congestion state and the duration reaches a first duration threshold, enabling the dual-connection mode in the case of a single-connection mode. US 2019/268950 A1 discloses a user equipment configured to determine that a thermal condition or a battery condition is satisfied with regard to the user equipment, and to determine whether a 5G/NR connection is to be activated or deactivated based on the thermal condition or the battery condition. EP 3 462 789 A1 discloses a mobile terminal in which a network connection with an access network is released when a current battery level of the mobile terminal falls below a low battery threshold or the user wishes to reduce the power consumption of the mobile terminal. EP 3 550 877 A1 discloses a method for accelerating data processing of a double connection in a next generation mobile communication system. CN 110 493 892 A discloses a network connection method comprising acquiring a current running state of a terminal equipment, acquiring a network connection state of the terminal equipment when the terminal equipment is in a first running state at present, and when the network connection state is a first connection state, generating a first network connection instruction for the terminal equipment to disconnect from a first network according to the indication of the first network connection instruction. EP 4 415 460 A1, which is state of the art acc. Art. 54(3) EPC, discloses a communication method that is performed by a terminal in a wireless communication system and that comprises the steps of: identifying, by a first processor of the terminal, a state of the terminal; transmitting the state to a second processor of the terminal; identifying an electric power-related parameter associated with the state; and transmitting, to a base station, a terminal message including the electric power-related parameter. US 2016/004408 A1, discloses an optimization App which performs a power saving mode. In response to a detected shake gesture from a user, the optimization App may recalculate a power consumption amount per unit time and a remaining battery life corresponding to a remaining battery amount increased through the first-stage power saving mode. The optimization App may update a remaining battery utilization time displayed on a task bar. SUMMARY This application provides a communication method, a terminal device and a computer readable storage medium according to the enclosed independent claims. Advantageous features of the present invention are defined in the corresponding dependent claims. In the following, parts of the description and drawings referring to embodiments, which are not covered by the claims, are not presented as embodiments of the invention but as examples useful for understanding the invention. The terminal device is in a dual-connectivity network including an LTE link and an NR link, and when the terminal device detects that the terminal device is in a power saving mode, and/or when the terminal device detects that bat