Patent ID: 7359356
Filing Date: 2008-04-15
Classification: H04L,H04W

Abstract:
1. An overflow control method for frame synchronization in a wireless communication network system, said wireless communication network system including a radio network controller, a first base station, a second base station, and a mobile unit, wherein said radio network controller transmits a plurality of data frames to said first base station and said second base station, a first link exists between said mobile unit and said first base station, said first base station transmits received data frames to said mobile unit through said first link, said second base station includes a register for storing received data frames, said register has a storage capacity N max , said overflow control method comprising: (a) setting a judging storage capacity for said register smaller than said storage capacity N (b) if said number of said plurality of data frames is larger than said judging storage capacity, calculating an X by subtracting said judging storage capacity from said number of said plurality of data frames; (c) deleting X of data frames from said register; (d) detecting a link quality of said first link; (e) determining whether said link quality is lower than a preset value; (f) if said link quality is lower than said preset value, calculating a CS (g) calculating a CS (h) transmitting said CS (i) transmitting said CS (j) calculating an N by subtracting said CS