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CN-122028030-A - Communication method, apparatus, computer device, readable storage medium, and program product

CN122028030ACN 122028030 ACN122028030 ACN 122028030ACN-122028030-A

Abstract

The present application relates to a communication method, apparatus, computer device, readable storage medium and program product. The method is applied to the terminal, and in the attachment procedure or the tracking area updating TAU procedure, the terminal receives a first message comprising waiting time sent by a first on-board mobility management unit (MME), and then the terminal communicates based on the first message according to the terminal capability. By adopting the method, the terminals with different terminal capacities can access the corresponding network according to the terminal capacities thereof, and the communication flow of data transmission is carried out.

Inventors

  • GUO MAOWEN
  • TANG MINGWEI
  • ZHAO JING

Assignees

  • 中国电信股份有限公司技术创新中心
  • 中国电信股份有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (17)

  1. 1. A communication method, applied to a terminal, the method comprising: in an attachment procedure or a tracking area update TAU procedure, receiving a first message sent by a first on-board mobility management unit MME, wherein the first message includes a waiting time; and carrying out communication processing based on the first message according to the terminal capability.
  2. 2. The method of claim 1, wherein the first message is a first reject message, the first reject message is an attach reject message or a TAU reject message, the first reject message is sent after the first on-board MME receives a first request message of the terminal in a store-and-forward mode, and the first request message includes an attach request or a TAU request.
  3. 3. The method according to claim 2, wherein said communication processing based on said first message according to terminal capabilities comprises: The terminal starts a timer according to the waiting time; And/or the terminal enters a Radio Resource Control (RRC) idle state.
  4. 4. A method according to claim 3, wherein if the terminal supports a store-and-forward mode and a normal mode, the terminal enters a radio resource control, RRC, idle state, the method further comprising: if the timer is not expired, the terminal monitors a system message sent by a satellite base station where a common mode cell is located.
  5. 5. The method according to claim 4, wherein the method further comprises: if the terminal acquires the system message sent by the satellite base station where the common mode cell is located, stopping the timer; And the terminal establishes RRC connection with the satellite base station where the common mode cell is located.
  6. 6. The method of claim 5, wherein after the terminal establishes an RRC connection with a satellite base station in which the normal mode cell is located, the method further comprises: and the terminal sends a second request message to an on-board MME where the common mode cell is located, wherein the second request message comprises an attachment request or a TAU request.
  7. 7. The method of claim 6, wherein after the terminal sends the second request message to the on-board MME where the normal mode cell is located, the method further comprises: and the terminal receives a first acceptance message returned by the on-board MME where the common mode cell is, wherein the first acceptance message comprises an attachment acceptance message or a TAU acceptance message.
  8. 8. The method according to claim 4, wherein the method further comprises: If the timer expires, the terminal is in the RRC idle state, and monitors a system message sent by an on-board base station which establishes RRC connection last time; If the system message sent by the satellite base station which establishes the RRC connection last time is obtained, the terminal and the satellite base station which establishes the RRC connection last time re-send a third request message after establishing the RRC connection, wherein the third request message comprises an attachment request or a TAU request; and the terminal receives a second receiving message returned by an on-board MME of a satellite to which the on-board base station which establishes the RRC connection last time belongs, wherein the second receiving message comprises an attachment receiving message or a TAU receiving message.
  9. 9. A method according to claim 3, wherein said performing communication processing based on said first message according to terminal capabilities if said terminal supports only a store-and-forward mode comprises: The terminal enters a Radio Resource Control (RRC) idle state, and the method further comprises: if the timer has not expired, the terminal does not monitor at least one of paging channel, cell selection or reselection, idle state measurement or acquisition of system messages.
  10. 10. The method of claim 9, wherein the method further comprises: If the timer expires, the terminal re-monitors at least one of paging channels, cell selection or reselection, idle state measurement or monitoring system messages; If the system information of the satellite base station which establishes the RRC connection last time is acquired, the terminal establishes the RRC connection with the satellite base station which establishes the RRC connection last time and then sends a fourth request message, wherein the fourth request message comprises an attachment request or a TAU request; and the terminal receives a third receiving message returned by an on-board MME of a satellite to which the on-board base station which establishes the RRC connection last time belongs, wherein the third receiving message comprises an attachment receiving message or a TAU receiving message.
  11. 11. The method of claim 3, wherein the first message further comprises a satellite identification listening list, the method further comprising: The terminal acquires auxiliary satellite information in the satellite identification monitoring list through a system message block SIB, wherein the auxiliary satellite information is used for determining cell information during cell selection or reselection after the timer expires, and the cell information comprises frequency information or cell identification information.
  12. 12. The method of claim 11, wherein the method further comprises: If the timer expires, the terminal is in the RRC idle state and monitors a system message sent by an on-board base station of a satellite in the satellite identification monitoring list according to the frequency information or the cell identification information; If a system message sent by an on-board base station of a satellite in the satellite identification monitoring list is obtained, the terminal establishes RRC connection with the on-board base station of the satellite in the satellite identification monitoring list and then sends a fifth request message, wherein the fifth request message comprises an attachment request or a TAU request; and the terminal receives a third receiving message returned by the satellite MME of the satellite in the satellite identification monitoring list, wherein the third receiving message comprises an attachment receiving message or a TAU receiving message.
  13. 13. The method of claim 1, wherein the terminal capabilities include the terminal supporting one of a store-and-forward mode and a normal mode, or the terminal supporting only a store-and-forward mode; The store-and-forward mode is that when a feeder link is unavailable and a service link is available, the terminal communicates with an MME of a non-terrestrial network, and the communication flow comprises an attachment procedure, a TAU procedure or data transmission; The common mode is that when the feeder link and the service link are both available, the terminal communicates with the MME of the non-terrestrial network, and a communication procedure includes an attach procedure, a TAU procedure, or data transmission.
  14. 14. A communication device for use in a terminal, the device comprising: a first receiving module, configured to receive, in an attach procedure or a tracking area update TAU procedure, a first message sent by an on-board mobility management unit MME, where the first message includes a waiting time; And the communication module is used for carrying out communication processing based on the first message according to the terminal capability.
  15. 15. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 13 when the computer program is executed.
  16. 16. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 13.
  17. 17. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any one of claims 1 to 13.

Description

Communication method, apparatus, computer device, readable storage medium, and program product Technical Field The present application relates to the field of mobile communications technology, and in particular, to a communication method, apparatus, computer device, readable storage medium, and program product. Background The IoT-NTN (Internet of Things Non-TERRESTRIAL NETWORKING) is an LTE (Long Term Evolution ) network mobile communication system supporting satellite access based on NB-IoT (Narrow Band Internet of Things ) technology standard, can be widely applied to vertical industries such as maritime transportation, wilderness transportation, energy collection, agriculture, environmental protection, and the like, and has the characteristics of wide coverage, low rate, and the like. Currently, for IoT-NTN technologies in low and medium orbit, in the early stage of network establishment, due to the limited number of satellites and the limited number of gateway stations, there are situations in which the service link and feeder link of the satellite cannot be simultaneously available, so that the IoT-NTN cannot provide communication services for terminals in the coverage area of the satellite at some time. In this case, there is currently no corresponding communication flow for different types of terminals. Disclosure of Invention Based on this, it is necessary to provide a communication method, an apparatus, a computer device, a readable storage medium, and a program product in order to solve the above-mentioned technical problems. In a first aspect, the present application provides a communication method, applied to a terminal, the method comprising: In an attachment procedure or a tracking area update TAU procedure, receiving a first message sent by a first on-board mobility management unit MME, the first message including a waiting time; and carrying out communication processing based on the first message according to the terminal capability. In one embodiment, the first message is a first reject message, where the first reject message is an attach reject message or a TAU reject message, and the first reject message is sent after the first on-board MME receives a first request message of the terminal in a store-and-forward mode, where the first request message includes an attach request or a TAU request. In one embodiment, according to the terminal capability, the communication processing based on the first message includes: the terminal starts a timer according to the waiting time; and/or the terminal enters a radio resource control, RRC, idle state. In one embodiment, if the terminal supports the store-and-forward mode and the normal mode, the terminal enters a radio resource control RRC idle state, and the method further includes: If the timer is not expired, the terminal monitors the system message sent by the satellite base station where the common mode cell is located. In one embodiment, the method further comprises: If the terminal acquires the system message sent by the satellite base station where the common mode cell is located, stopping the timer; the terminal establishes RRC connection with the satellite base station where the common mode cell is located. In one embodiment, after the terminal establishes an RRC connection with the on-board base station where the normal mode cell is located, the method further includes: The terminal sends a second request message to the on-board MME where the common mode cell is located, wherein the second request message comprises an attach request or a TAU request. In one embodiment, after the terminal sends the second request message to the on-board MME, the method further includes: The terminal receives a first acceptance message returned by the on-board MME where the common mode cell is located, wherein the first acceptance message comprises an attachment acceptance message or a TAU acceptance message. In one embodiment, the method further comprises: If the timer expires, the terminal is in an RRC idle state, and monitors a system message sent by an on-board base station which establishes RRC connection last time; If a system message sent by the satellite base station which establishes the RRC connection last time is obtained, the terminal and the satellite base station which establishes the RRC connection last time re-send a third request message after establishing the RRC connection, wherein the third request message comprises an attachment request or a TAU request; The terminal receives a second receiving message returned by the satellite MME of the satellite base station which establishes the RRC connection last time, wherein the second receiving message comprises an attachment receiving message or a TAU receiving message. In one embodiment, according to the terminal capability, if the terminal only supports the store-and-forward mode, the communication processing based on the first message includes: The terminal enters a Radio Resource Control (R