Patent ID: 9408171
Filing Date: 2016-08-02
CPC Classification: H04L,H04W,Y02D

Claim Text:
1. A method for synchronizing a wireless communication apparatus, the method comprising: preparing, by the wireless communication apparatus, a synchronization message for transmission during a discovery time interval of a discovery time period based on a probability value corresponding to a frequency for preparing the synchronization message over a plurality of discovery time periods, wherein preparing the synchronization message comprises setting a first timestamp of the synchronization message to a time value of the wireless communication apparatus; initiating, by the wireless communication apparatus, a contention based process for transmitting the prepared synchronization message during the discovery time interval subsequent to preparing the synchronization message; receiving two or more second synchronization messages, each including a received signal strength indication (RSSI) threshold from other wireless communication apparatuses during the discovery time interval; and measuring an RSSI of each of the received second synchronization messages; canceling transmission of the prepared synchronization message if it is determined that at least one of the measured RSSIs is greater than the received RSSI thresholds.