Method and apparatus for radio link failure recovery

摘要

A method (300) and apparatus (200) for radio link failure recovery is disclosed. The method may include receiving (340), at a mobile station (110), an assignment of a random access preamble from a first cell (140) for use in at least one potential reestablishment cell (150). The method may include determining (360) that a radio link failure has occurred after receiving the assignment of the random access preamble. The method may include transmitting (370) the random access preamble to one of the at least one potential reestablishment cells in response to determining that the radio link failure has occurred.

主权项

1. A method in a mobile station, the method comprising:
establishing, using one or more processors, a connection to a first cell; determining, using the one or more processors, whether or not the mobile station is allowed to access a potential reestablishment cell; based on the mobile station being allowed to access the potential reestablishment cell, receiving, at the mobile station and using the one or more processors, an assignment of a random access preamble and a random access response identifier from the first cell, the random access preamble being dedicated for use in the potential reestablishment cell, and maintaining the connection to the first cell after receiving the assignment of the random access preamble and the random access response identifier; determining, using the one or more processors, that a radio link failure of the connection to the first cell has occurred after receiving the assignment of the random access preamble and the random access response identifier; transmitting, using the one or more processors, the random access preamble to the potential reestablishment cell in response to determining that the radio link failure of the connection to the first cell has occurred; and receiving, from the potential reestablishment cell, a random access response message identified by the random access response identifier.