Method and apparatus for analyzing cause of link failure
A method and apparatus for analyzing cause of link failure, includes: receiving, by a base station where the user equipment is present when a link failure is observed by the user equipment, identification information transmitted by other base stations or the user equipment, the identification information including: identification associated with the user equipment and/or identification of the user equipment in the base station; and determining, by the base station when it determines that the identification information is stored in the base station, that the link failure is resulted from a handover preparation failure.
1. A communication system comprising:
a first base station;
a second base station; and
a user equipment,
wherein the user equipment includes:
a processor that generates identification information including an identification of the user equipment used in a cell of the second base station that serves the user equipment when the user equipment observes a link failure; and
a transmitter that transmits the identification information to the first base station after connection with the first base station is successfully established,
wherein the first base station includes:
a receiver that receives the identification information transmitted from the user equipment, and
a transmitter that transmits the identification information to the second base station, and
wherein the second base station includes:
a receiver that receives the identification information transmitted from the first base station, and
a processor that determines that the link failure is resulted from a handover preparation failure according to the identification information.
2. A user equipment, comprising:
a processor that generates identification information including an identification of the user equipment used in a cell of a base station that serves the user equipment when the user equipment observes a link failure; and
a transmitter that transmits a link failure report including the identification information to another base station after connection with the another base station is successfully established.
3. A base station, comprising:
a receiver that receives an indication of a handover preparation failure transmitted from a user equipment after the base station establishes connection with the user equipment successfully; and
a transmitter that transmits the indication to another base station which served the user equipment when the user equipment observed a link failure.