Methods and apparatus related to multi-mode wireless communications device supporting both wide area network signaling and peer to peer signaling
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United States of America Patent
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Jan 21, 2014
Grant Date -
Mar 20, 2008
app pub date -
Jun 18, 2007
filing date -
Sep 15, 2006
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Abstract
Methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage are described. A multi-mode wireless communications device supporting both WAN communications and peer to peer communications includes: a transmitter chain for generating signals having a first RF frequency, a first receiver chain for processing received signals having a second RF frequency, and a second receiver chain for processing signals having the first RF frequency. This design is particularly advantageous in a communications system where a WAN frequency division duplex uplink band is shared with time division duplex (TDD) peer to peer communications signaling. The wireless terminal sets the transmitter chain and the second receiver chain to the FDD uplink band and sets the first receiver chain to the FDD downlink band. This design accommodates rapid mode switching between the two modes of operation and reuses hardware where possible.
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