Title:
METHOD AND APPARATUS FOR ESTABLISHING PEER-TO-PEER COMMUNICATION
Document Type and Number:
WIPO Patent Application WO/2012/060934
Kind Code:
A3
Abstract:
A method and apparatus for establishing peer-to-peer communication and performing forwarding under the control of a cellular network are described. A seeking wireless transmit/receive unit (WTRU) may receive a timing signal from at least one discoverable WTRU controlled by a base station. The seeking WTRU may estimate the quality of a radio link (i.e., path loss) between the seeking WTRU and the discoverable WTRU, and determine, (e.g., based on a threshold established by the base station), whether or not to report the estimated radio link quality to a base station that controls the discoverable WTRU. The power of the timing signal may be ramped up in predetermined steps such that the transmission power at any given time is known and may be used by the seeking WTRU for estimating the radio link quality. The timing signal may include at least one of a primary preamble or a secondary preamble.
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Inventors:
ZEIRA ELDAD M (US)
DENG TAO (US)
PRAGADA RAVIKUMAR V (US)
DENG TAO (US)
PRAGADA RAVIKUMAR V (US)
Application Number:
PCT/US2011/052352
Publication Date:
July 19, 2012
Filing Date:
September 20, 2011
Export Citation:
Assignee:
INTERDIGITAL PATENT HOLDINGS (US)
ZEIRA ELDAD M (US)
DENG TAO (US)
PRAGADA RAVIKUMAR V (US)
ZEIRA ELDAD M (US)
DENG TAO (US)
PRAGADA RAVIKUMAR V (US)
International Classes:
H04W8/00; H04W4/70; H04W56/00
Foreign References:
| US20100167743A1 | 2010-07-01 | |||
| EP0713345A2 | 1996-05-22 | |||
| US20090217043A1 | 2009-08-27 | |||
| US20070253400A1 | 2007-11-01 |
Attorney, Agent or Firm:
WOLINSKY, Scott (P.C.30 S. 17th Street,United Plaz, Philadelphia PA, US)
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