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CN-122002463-A - Communication method and communication device

CN122002463ACN 122002463 ACN122002463 ACN 122002463ACN-122002463-A

Abstract

The application provides a communication method and a communication device, wherein the method comprises the steps of receiving system information of a cell, and receiving second indication information under the condition that the system information does not comprise first indication information, wherein the second indication information is used for determining whether the cell prohibits access of a first relay node, the first indication information indicates whether the cell prohibits access of the relay node, or the first indication information indicates that the cell is a cell of a second relay node. Based on this, the network device can perform access control on the wireless access backhaul mobile terminal.

Inventors

  • ZHU SHICHAO
  • ZHU YUANPING
  • ZHENG LILI
  • SUN FEI

Assignees

  • 华为技术有限公司

Dates

Publication Date
20260508
Application Date
20241107

Claims (15)

  1. 1. A communication method, applied to a first relay node, the method comprising: Receiving system information of a cell; And receiving second indication information under the condition that the system information does not comprise first indication information, wherein the second indication information is used for determining whether the cell prohibits the access of the first relay node, and the first indication information indicates whether the cell prohibits the access of the relay node or the first indication information indicates that the cell is a cell of the second relay node.
  2. 2. The method of claim 1, wherein the second indication information is cell barred information or non-terrestrial network cellBarredNTN information.
  3. 3. The method according to claim 1 or 2, wherein the second indication information is cellBarredNTN information, and wherein the first relay node uses a non-terrestrial network NTN access manner.
  4. 4. The method according to claim 1 or 2, wherein the second indication information is cellBarred information, and wherein the first relay node uses a non-NTN access manner or the first relay node has no NTN access capability.
  5. 5. The method according to any of claims 1 to 4, wherein the system information is a system information block 1SIB1.
  6. 6. A communication method, applied to a first relay node, the first relay node having NTN access capability, the method comprising: Determining an access mode of the first relay node, wherein the access mode comprises an NTN access mode or a non-NTN access mode; in the case that the access mode of the first relay node is an NTN access mode, the method further includes: receiving cellBarredNTN information; Determining whether the cell prohibits the access of the first relay node according to the cellBarredNTN information or In the case that the access mode of the first relay node is a non-NTN access mode, the method further includes: Receiving system information of a cell; in case the system information comprises first indication information, the method further comprises: and determining whether the cell prohibits the access of the first relay node according to the first indication information, wherein the first indication information indicates whether the cell prohibits the access of the relay node or the first indication information indicates that the cell is the cell of the second relay node.
  7. 7. The method of claim 6, wherein in the case where the system information does not include the first indication information, the method further comprises: Receiving cellBarred information; And determining whether the cell prohibits the first relay node from accessing according to the cellBarred information.
  8. 8. The method according to claim 6 or 7, wherein the system information is SIB1.
  9. 9. A communication method, applied to a first relay node, the method comprising: and sending third indication information, wherein the third indication information is a new wireless network measurement result list MeasResultList NR information and/or terminal equipment auxiliary information UEAssistanceInformation, the third indication information comprises first information, and the first information indicates the first relay node to be used as a wireless access backhaul mobile terminal WAB-MT.
  10. 10. A method of communication, comprising: a handover request is received, the handover request including MeasResultList NR information and/or UEAssistanceInformation, the MeasResultList NR information and/or UEAssistanceInformation including first information indicating that a node to be handed over is a WAB-MT.
  11. 11. The method as recited in claim 10, further comprising: fifth indication information indicating that handover preparation fails is transmitted.
  12. 12. A communication device comprising means or units for performing the method of any of claims 1 to 9, or means or units for performing the method of any of claims 10 to 11.
  13. 13. A communication device comprising a processor configured to cause the communication device to perform the method of any one of claims 1 to 9 or to cause the communication device to perform the method of any one of claims 10 to 11.
  14. 14. A computer readable storage medium, having stored thereon a computer program or instructions which, when run on a communication device, cause the communication device to perform the method of any of claims 1 to 9 or cause the communication device to perform the method of any of claims 10 to 11.
  15. 15. A computer program product, characterized in that the computer program product comprises a computer program or instructions which, when run on a communication device, cause the communication device to perform the method of any one of claims 1 to 9 or cause the communication device to perform the method of any one of claims 10 to 11.

Description

Communication method and communication device Technical Field The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus. Background In the problem of enhancing the topology of mobile communication (topology enhancement), a new architecture based on Wireless Access Backhaul (WAB) is being studied, and the application scenario of the WAB architecture may be vehicle-mounted mobile relay (vehicle mounted relay, VMR), i.e. a relay node is deployed on a vehicle (even on an aircraft) to provide wireless coverage for a terminal in the vehicle so as to overcome the problem of poor wireless signals in the vehicle, and the relay node accesses a macro station (also may be referred to as a host (donor) access network node) through the wireless backhaul, where the relay node in the WAB architecture may be referred to as a WAB node. The WAB node may include a next generation NodeB (gNB) function and a Mobile Terminal (MT) function. As a first step of the WAB node network access procedure, the MT network access may be the same as that of a common User Equipment (UE), and after the MT is powered on, searches for a synchronization SIGNAL AND PBCH block (SSB), searches for a suitable cell, and then camps on, and then initiates random access. Therefore, how to perform access control on the WAB-MT by the network device is a problem to be solved in the art. Disclosure of Invention The application provides a communication method and a communication device, which can enable network equipment to carry out access control on a wireless access backhaul mobile terminal (WIRELESS ACCESS AND backhaul mobile terminal, WAB-MT). In a first aspect, a method of communication is provided. The method may be applied to the first relay node, that is, the method may be performed by the first relay node, or may be performed by a component (for example, a chip or a system-on-chip or a circuit or a communication module or a processor) of the first relay node, which is not limited in the present application. The following description mainly uses the first relay node as an example. The method can include receiving system information of a cell, and receiving second indication information in the case that the system information does not include first indication information, wherein the second indication information is used for determining whether the cell prohibits access of the first relay node, and the first indication information indicates whether the cell prohibits access of the relay node or the first indication information indicates that the cell is a cell of a second relay node. Based on the above technical solution, when the system information of the first relay node receiving cell does not include the first indication information, the first relay node may also receive the second indication information, and may determine whether the cell prohibits the first relay node from accessing according to the second indication information. For example, for a first network device that does not include the first indication information in the system information of the transmitting cell, the first network device may further implement access control for the first relay node through the second indication information. Based on this, the network device that does not transmit the first indication information can implement access control for the relay node. Otherwise, if the first relay node receives that the system information of the cell does not include the first indication information, the first relay node determines that the cell does not prohibit the first relay node from accessing, the first relay node may be certain to access the first network device, and at this time, the first network device cannot perform access control on the first relay node. With reference to the first aspect, in certain implementation manners of the first aspect, the second indication information is cell barred information or non-terrestrial network cellBarredNTN information. Based on the above technical solution, if the system information of the cell received by the first relay node does not include the first indication information, the first relay node may further determine whether the cell prohibits the first relay node from accessing according to the cellBarred information or cellBarredNTN information. Based on the information, the network device which does not send the first indication information can realize access control to the relay node by sending the cellBarred information or cellBarredNTN information. With reference to the first aspect, in some implementations of the first aspect, the second indication information is cellBarredNTN information, where the first relay node uses a non-terrestrial network NTN access manner. Based on the above technical solution, when the first relay node uses the NTN access mode, the first relay node may determine whether the cell prohibits the first relay node