Patent ID: 7983702
Filing Date: 2011-07-19
Classification: H04J,H04W

Abstract:
1. A method of operating a first wireless communications terminal, the method comprising: determining an original symbol timing; receiving a first timing synchronization signal from at least a second wireless communications terminal; calculating a timing adjustment based in part on the first timing synchronization signal; determining an adjusted symbol timing by adjusting the original symbol timing by an amount determined by the calculated timing adjustment; and transmitting a second timing synchronization signal with the adjusted symbol timing prior to determining the original symbol timing, receiving a timing reference signal from a network broadcast source; determining the original symbol timing based on the timing reference signal; and determining, based on the timing reference signal, a sequence of timing synchronization time intervals to be used for receiving timing synchronization signals from other wireless communications terminals; and wherein the first timing synchronization signal is received in a first one of the timing synchronization time intervals.