Indication method for context identification, acquisition method, user equipment and base station

A method of context identification acquisition, applied to a first base station, and the method comprising:

• receiving a message 3 (MSG3) message sent from a User Equipment (UE);
• and
• acquiring part of UE context identification information and related information of identification information from the MSG3 message, wherein the identification information is identification information pertaining to a second base station, and the related information comprises a difference value between the identification information of the second base station and identification information of the first base station,
• wherein acquiring the part of UE context identification information and the related information of the identification information from the MSG3 message, comprises:
• acquiring the part of UE context identification information, a difference value between the identification information of the second base station and identification information of the first base station, and a size relation between the identification information of the second base station and the identification information of the first base station from the MSG3;
• and determining the identification information of the second base station based on the part of UE context identification information, the difference value between the identification information of the second base station and the identification information of the first base station, and the size relation between the identification information of the second base station and the identification of the first base station;
• or
• acquiring the part of UE context identification information and position indication information of the identification information pertaining to the second base station from the MSG3 message, wherein the position indication information of the identification information pertaining to the second base station is at least used for indicating that the identification information pertaining to the second base station is sent in a message 5 (MSG5).

A User Equipment (UE), comprising:

• a memory, a processor and a network interface;
• wherein the memory is configured to store a computer program that is capable of being run on the processor;
• and
• wherein the processor is configured to, when the computer program is running:
• acquire a difference value between the identification information of a second base station and identification information of a first base station;
• and determine whether the difference value is greater than a preset value,
• when the difference value is not greater than the preset value, use the difference value between the identification information of the second base station and the identification information of the first base station and a size relation between the identification information of the second base station and the identification information of the first base station as related information of the identification information of the second base station;
• when the difference value is greater than the preset value, use position indication information of the identification information pertaining to the second base station as the related information of the identification information of the second base station, wherein the position indication information of the identification information pertaining to the second base station is at least used for indicating that the identification information pertaining to the second base station is sent in a message 5 (MSG5);
• carry part of UE context identification information and the related information of identification information pertaining to the second base station in a message 3 (MSG3) message;
• and
• send the MSG3 message to the first base station through the network interface.

A base station, comprising:

• a memory, a processor and a network interface;
• wherein the memory is configured to store a computer program that is capable of being run on the processor;
• and
• wherein the processor is configured to, when the computer program is running:
• receive a message 3 (MSG3) message sent from a User Equipment (UE) through the network interface;
• and
• acquire part of UE context identification information and related information of identification information from the MSG3 message, wherein the identification information is identification information pertaining to a second base station, and the related information comprises a difference value between the identification information of the second base station and identification information of a first base station;
• and
• at least one of:
• wherein the related information of identification information comprises a difference value between the identification information of the second base station and identification information of the first base station, and a size relation between the identification information of the second base station and the identification information of the first base station from the MSG3 message;
• and determine the identification information of the second base station based on the part of UE context identification information, the difference value between the identification information of the second base station and the identification information of the first base station, and the size relation between the identification information of the second base station and the identification of the first base station;
• or
• wherein the related information of identification information comprises position indication information of the identification information pertaining to the second base station from the MSG3 message;
• and wherein the position indication information of the identification information pertaining to the second base station is at least used for indicating that the identification information pertaining to the second base station is sent in a message 5 (MSG5).