Patent ID: 8428079
Filing Date: 2013-04-23
Classification: H04W,Y02D

Abstract:
1. An integrated circuit configured to operate in a mobile device, the integrated circuit comprising: a discovery generator module configured to generate a random value for each of a plurality of beacon intervals; a discovery control module configured to, for a first beacon interval of the plurality of beacon intervals in which the mobile device is to operate in a sleep mode, determine a duration of the first beacon interval based on the random value corresponding to the first beacon interval; and a physical layer device configured to wirelessly transmit a discovery request signal (i) in a peer-to-peer network having a plurality of peer devices, and (ii) while the mobile device is operating in an active mode, wherein the discovery control module is configured to determine which of the plurality of peer devices are discoverable based on responses to the discovery request signal received from discovered ones of the plurality of peer devices, wherein none of the plurality of peer devices operates as an access point, wherein the mobile device is partially powered down or fully powered down during the duration of the first beacon interval, and wherein the discovery control module is configured to operate the mobile device in the sleep mode in response to whether the mobile device receives a response to the discovery request signal.