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EP-3860276-B1 - COMMUNICATION METHOD AND APPARATUS

EP3860276B1EP 3860276 B1EP3860276 B1EP 3860276B1EP-3860276-B1

Inventors

  • HUA, Yao
  • LI, BINGZHAO
  • CAO, Zhenzhen
  • XIAO, XIAO

Dates

Publication Date
20260513
Application Date
20160513

Claims (10)

  1. A communication method performed by a base station, the method comprising the steps of: • receiving (S301) carrier aggregation capability information from a user equipment, UE; • receiving (S302) carrier information from the UE, wherein the carrier information indicates carriers requested by the UE for use, the carrier information comprises first information, the first information is used to indicate a type of a service corresponding to at least some of the carriers requested by the UE for use, and the carriers requested by the UE for use comprises a carrier other than all carriers used by the base station; and • sending (S303) indication information to the UE based on the carrier aggregation capability information and the carrier information, wherein the indication information is used to indicate allowing the UE to use one or more of the carriers requested by the UE for use.
  2. The communication method according to claim 1, wherein, before the receiving (S302) the carrier information from the UE, the communication method further comprises: o notifying, through broadcast, the UE of an available carrier for transmitting the service, wherein the carrier for transmitting the service is obtained by the base station from information that is sent by another base station to the base station, and the information comprises information indicating the carrier that is other than all the carriers used by the base station and that is used by the another base station for transmitting the service.
  3. The communication method according to claim 1 or 2, wherein the first information is carried in configuration information of each of the carriers requested by the UE for use.
  4. The communication method according to any one of claims 1 to 3, wherein the carrier aggregation capability information comprises second information and third information, the second information is used to indicate a frequency band or a frequency band combination supported by the UE, and the third information is used to indicate that the frequency band or the frequency band combination supported by the UE comprises a carrier that is expected to be used by the UE for transmitting the service.
  5. A communication method performed by a user equipment, UE, the method comprising the steps of: • sending carrier aggregation capability information to a base station; • sending carrier information to the base station, wherein the carrier information indicates carriers requested by the UE for use, the carrier information comprises first information, the first information is used to indicate a type of a service corresponding to at least some of the carriers requested by the UE for use, and the carriers requested by the UE for use comprises a carrier other than all carriers used by the base station; and • receiving indication information that is sent by the base station based on the carrier aggregation capability information and the carrier information, wherein the indication information is used to indicate allowing the UE to use one or more of the carriers requested by the UE for use.
  6. The communication method according to claim 5, wherein, before the sending the carrier information to the base station, the communication method further comprises: • receiving a broadcast message from the base station, wherein the broadcast message is used to notify the UE of an available carrier for transmitting the service, the carrier for transmitting the service is obtained by the base station from information that is sent by another base station to the base station, and the information comprises information indicating the carrier that is other than all the carriers used by the base station and that is used by the another base station for transmitting the service.
  7. The communication method according to claim 5 or 6, wherein the first information is carried in configuration information of each of the carriers requested by the UE for use.
  8. The communication method according to any one of claims 5 to 7, wherein the carrier aggregation capability information comprises second information and third information, the second information is used to indicate a frequency band or a frequency band combination supported by the UE, and the third information is used to indicate that the frequency band or the frequency band combination supported by the UE comprises a carrier that is expected to be used by the UE for transmitting the service.
  9. A base station (900) configured to perform any of the methods according to claims 1 - 4.
  10. User equipment (1000), UE, configured to perform any of the methods according to claims 5 - 8.

Description

TECHNICAL FIELD The present invention relates to the communications field, and in particular, to a communication method and an apparatus. BACKGROUND In a Long Term Evolution (Long Term Evolution, LTE) communications technology, a method for reporting, by user equipment (User Equipment, UE), a carrier requested for use (namely, a carrier that is requested to be allocated to the UE) has been standardized. A base station notifies, by using a system broadcast, the UE of a downlink broadcast/multicast carrier list supported by a current cell. The UE may determine, from the carrier list, a carrier requested for use, and report the carrier requested for use to the base station. The base station configures a corresponding carrier for the UE based on a carrier aggregation capability of the UE and the carrier that is reported and is requested for use. In an actual application, an Internet of Vehicles service (for example, a vehicle-to-everything V2X service) is an important service related to vehicle security, and the service should be preferentially supported by the base station. However, in the prior art, the base station configures the carrier for the UE based on only the carrier aggregation capability of the UE and a capability of the base station itself. Therefore, use of a carrier corresponding to the V2X service by the UE may be affected, and communications efficiency of the V2X service may be affected. The document US 2012/0157143 A1 shows a wireless communication system, apparatus, and method. Especially, a priority based frequency band selection is shown. The document US 2016/037528 A1 shows a method and apparatus for transmitting and receiving data using a plurality of carriers in a mobile communication system. SUMMARY The present invention is defined by the independent claims. Dependent claims define further advantageous embodiments. BRIEF DESCRIPTION OF DRAWINGS To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments of the present invention. Apparently, the accompanying drawings in the following description show merely some embodiments of the present invention. FIG. 1 is a schematic diagram of a possible system architecture according to an embodiment of the present invention;FIG. 2 is a schematic diagram of a possible system architecture according to an embodiment of the present invention;FIG 3 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG 4 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG. 5 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG 6 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG. 7 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG. 8 is a schematic diagram of a communication method according to another embodiment of the present invention;FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention;FIG. 10 is a schematic structural diagram of UE according to an embodiment of the present invention;FIG 11 is a schematic diagram of a base station according to another embodiment of the present invention; andFIG. 12 is a schematic diagram of UE according to another embodiment of the present invention. DESCRIPTION OF EMBODIMENTS The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are a part rather than all of the embodiments of the present invention. It should be understood that the technical solutions in the present invention may be applied to various communications systems, such as: a Global System for Mobile Communications (Global System of Mobile communication, GSM), a Code Division Multiple Access (Code Division Multiple Access, CDMA) system, a Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA), a general packet radio service (General Packet Radio Service, GPRS), and a Long Term Evolution (Long Term Evolution, LTE). It should also be understood that, in the embodiments of the present invention, user equipment (User Equipment, "UE" for short) may be referred to as a terminal (Terminal), a mobile station (Mobile Station, "MS" for short), a mobile terminal (Mobile Terminal), or the like. The user equipment may communicate with one or more core networks through a radio access network (Radio Access Network, "RAN" for short). For example, the user equipment may be a mobile phone (also referred to as a "cellular phone") or a computer with a mobile terminal. For example, the user equipment may al