Search

CN-122002631-A - Communication method and device

CN122002631ACN 122002631 ACN122002631 ACN 122002631ACN-122002631-A

Abstract

The embodiment of the application discloses a communication method and a communication device, wherein in the method, a first terminal device and a second terminal device are connected, and the second terminal device is a relay used for communication between the first terminal device and a network device. In response to the first terminal device being in a non-RRC connected state, the first terminal device sends first information to the second terminal device, the first information being for requesting establishment of an RRC connection of the first terminal device with the network device. The method is beneficial to reducing the time delay for waiting the first terminal device to be converted into the RRC connection state when the service data is transmitted, thereby reducing the transmission time delay of the service data and improving the service quality.

Inventors

  • CAO CHUNYAN

Assignees

  • 展讯半导体(南京)有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (15)

  1. 1. A communication method applied to a first terminal device, the method comprising: establishing a connection with a second terminal device, the second terminal device being a relay for communication between the first terminal device and a network device; And in response to the first terminal device being in a non-Radio Resource Control (RRC) connection state, sending first information to the second terminal device, wherein the first information is used for requesting establishment of the RRC connection between the first terminal device and the network device.
  2. 2. The method of claim 1, wherein the step of determining the position of the substrate comprises, The first information is further used for triggering the second terminal device to send second information to the network device or the third terminal device in response to the second terminal device being in a non-RRC connection state; Wherein the second information is used for requesting to establish an RRC connection between the second terminal device and the network device; the third terminal device is a relay for communication between the second terminal device and the network device.
  3. 3. The method according to claim 1, wherein the method further comprises: After the first terminal device completes the RRC connection establishment with the network device, service data is acquired, and the service data is sent to the second terminal device.
  4. 4. The method of claim 3, wherein the first terminal device is a relay for communication between a fourth terminal device and the network device, and wherein prior to the acquiring the traffic data, the method further comprises: establishing a connection with the fourth terminal device; Receiving third information from the fourth terminal device, the third information being used to request establishment of an RRC connection of the fourth terminal device with the network device; And transmitting the third information to the second terminal device.
  5. 5. The method of claim 3, wherein the step of, The service data is uplink data to be sent when the first terminal device is in an RRC connection state.
  6. 6. The method according to any one of claims 1 to 5, further comprising: establishing a connection with a fifth terminal device in response to a connection failure between the first terminal device and the second terminal device, the fifth terminal device being a relay for communication between the first terminal device and the network device, and the fifth terminal device being different from the second terminal device; And transmitting fourth information to the fifth terminal device, wherein the fourth information is used for requesting the RRC connection reestablishment between the first terminal device and the network device.
  7. 7. A communication method, applied to a terminal device, the method comprising: receiving fifth information from a network device, the fifth information indicating a condition that the terminal device becomes a relay; In response to the terminal device satisfying the condition and the terminal device being in a non-radio resource control, RRC, connected state, an RRC connection is established with the network device.
  8. 8. The method of claim 7, wherein the step of determining the position of the probe is performed, The fifth information comprises a first threshold value and/or a second threshold value; The condition for the terminal device to become a relay is that reference signal received power, RSRP, between the terminal device and the network device is greater than or equal to the first threshold value and/or that RSRP, between the terminal device and the network device is less than or equal to the second threshold value.
  9. 9. A method of communication, for use with a network device, the method comprising: Transmitting fifth information for instructing the terminal device to be a relay condition; an RRC connection is established with a terminal device that satisfies the condition and is in a non-radio resource control, RRC, connected state.
  10. 10. The method of claim 9, wherein the step of determining the position of the substrate comprises, The fifth information comprises a first threshold value and/or a second threshold value; The condition for the terminal device to become a relay is that reference signal received power, RSRP, between the terminal device and the network device is greater than or equal to the first threshold value and/or that RSRP, between the terminal device and the network device is less than or equal to the second threshold value.
  11. 11. A communication device, characterized in that it comprises means or units for implementing the method of any one of claims 1 to 6, or in that it comprises means or units for implementing the method of claim 7 or 8, or in that it comprises means or units for implementing the method of claim 9 or 10.
  12. 12. A communication device comprising a processor and a memory, the processor and the memory being interconnected, wherein the memory is adapted to store a computer program, the computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method according to any of claims 1 to 6, or to perform the method according to claim 7 or 8, or to perform the method according to claim 9 or 10.
  13. 13. A chip comprising a processor and a communication interface, the processor being configured to cause the chip to perform the method of any one of claims 1 to 6, or to perform the method of claim 7 or 8, or to perform the method of claim 9 or 10.
  14. 14. The utility model provides a module equipment, its characterized in that, module equipment includes communication module, power module, storage module and chip, wherein: The power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; The communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment; the chip being for performing the method of any one of claims 1 to 6, or for performing the method of claim 7 or 8, or for performing the method of claim 9 or 10.
  15. 15. A computer readable storage medium having stored therein computer readable instructions which, when run on a communication device, cause the communication device to perform the method of any one of claims 1 to 6, or cause the communication device to perform the method of claim 7 or 8, or cause the communication device to perform the method of claim 9 or 10.

Description

Communication method and device Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method and apparatus. Background In terminal-to-network relay communication, if the terminal is far away from the base station, indirect communication is achieved between the terminal and the base station through relay. When the terminal has service data transmission, the terminal and the relay are in a radio resource control (radio resource control, RRC) connection state, namely, the terminal and the relay need to establish RRC connection with the base station, and then the terminal starts to transmit the service data, and delay is generated in the process. If the number of relays between the terminal and the base station is large, the transmission delay of the terminal service data is large, and the service quality is affected. Disclosure of Invention The embodiment of the application provides a communication method and a communication device, which are beneficial to reducing the transmission delay of service data and improving the service quality. In a first aspect, an embodiment of the present application provides a communication method. The method includes the first terminal device establishing a connection with a second terminal device, the second terminal device being a relay for communication between the first terminal device and the network device. In response to the first terminal device being in a non-RRC connected state, the first terminal device sends first information to the second terminal device, the first information being for requesting establishment of an RRC connection of the first terminal device with the network device. It can be seen that in the method, after the first terminal device establishes a connection with the second terminal device, if the first terminal device is in a non-RRC connected state, the first terminal device initiates a request for RRC connection through the second terminal device, so that an RRC connection is established between the first terminal device and the network device, so that the first terminal device is converted into an RRC connected state. Thus, when other terminal devices have service data transmission and select to initiate the request of RRC connection establishment through the first terminal device, the first terminal device in the RRC connection state can directly forward the RRC connection establishment request message from the other terminal devices, so that the time delay for waiting for the first terminal device to be converted into the RRC connection state is reduced, the transmission time delay of the service data is further reduced, and the service quality is improved. Or the service data can be directly sent to the second terminal device when the subsequent first terminal device has service data transmission, so that the time delay for waiting for the first terminal device to be converted into the RRC connection state is reduced, the transmission time delay of the service data is further reduced, and the service quality is improved. In an alternative embodiment, the first information is further used to trigger the second terminal device to send the second information to the network device or the third terminal device in response to the second terminal device being in a non-RRC connected state. Wherein the second information is used to request establishment of an RRC connection of the second terminal device with the network device. The third terminal device is a relay for communication between the second terminal device and the network device. It can be seen that this approach is also advantageous for the second terminal device to initiate a request for RRC connection establishment if the second terminal device is in a non-RRC connected state after receiving the first information, so that the second terminal device transitions to an RRC connected state, and the second terminal device in the RRC connected state forwards the first information to assist the first terminal device in establishing an RRC connection with the network device. This approach facilitates the implementation of the first terminal device establishing an RRC connection with the network device. In an alternative embodiment, the method further comprises acquiring service data after the first terminal device completes the RRC connection establishment with the network device, and transmitting the service data to the second terminal device. In an alternative embodiment, the first terminal device is a relay for communication between the fourth terminal device and the network device. The method further comprises the steps that before the service data are acquired, the first terminal device establishes connection with the fourth terminal device, the first terminal device receives third information from the fourth terminal device, the third information is used for requesting to establish RRC connection between the fourt