Birch, Stewart, Kolasch & Birch, LLP
Method and apparatus for managing uplink time alignment
A method and apparatus of managing uplink time alignment in a wireless communication system is provided. A user equipment starts a time alignment timer which is used to control how long the user equipment is considered uplink time aligned and receives an expiry request message from a base station while the time alignment timer is running. Upon receiving the expiry request, the user equipment expires the time alignment timer and releasing uplink resources.
LG ELECTRONICS INC.
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Young Dae Sung Jun Seung June Sung Hoon Sung Duck
Lee Park Yi Jung Chun