System and method for peer-to-peer communication in cellular systems
First Claim
1. A mobile station adapted to participate in wireless PMP (point-to-multi-point) communications by communicating directly with a cellular base station using cellular communications signals transmitted on a cellular spectral resource,the mobile station being further adapted to participate in wireless P2P (peer-to-peer) communications by communicating directly with another mobile station using signals in form similar to the cellular communications signals and using said cellular spectral resource, wherein the cellular communications signals are CDMA (code division multiple access), signals or OFDM (Orthogonal frequency division multiplexing) signals;
- wherein said cellular spectral resource comprises a downlink PMP band, and an uplink PMP band, wherein the mobile station is adapted to participate in wireless PMP (point to multi-point) communications using the downlink PMP band for receiving and using the uplink PMP band for transmitting, the mobile station being further adapted to participate in wireless P2P (peer-to-peer) communications using the PMP uplink band for both transmitting and receiving in a TDD (time division duplex) manner;
a transmitter for transmitting PMP communications and P2P communications on the uplink PMP band;
a first receiver for receiving PMP communications on the downlink PMP band;
a second receiver for receiving P2P communications on the uplink PMP band,adapted to listen to PMP communications from the network on the downlink PMP band with the first receiver for maintenance purposes while transmitting P2P communications and while receiving P2P communications with the second receiver.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication.
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Citations
28 Claims
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1. A mobile station adapted to participate in wireless PMP (point-to-multi-point) communications by communicating directly with a cellular base station using cellular communications signals transmitted on a cellular spectral resource,
the mobile station being further adapted to participate in wireless P2P (peer-to-peer) communications by communicating directly with another mobile station using signals in form similar to the cellular communications signals and using said cellular spectral resource, wherein the cellular communications signals are CDMA (code division multiple access), signals or OFDM (Orthogonal frequency division multiplexing) signals; -
wherein said cellular spectral resource comprises a downlink PMP band, and an uplink PMP band, wherein the mobile station is adapted to participate in wireless PMP (point to multi-point) communications using the downlink PMP band for receiving and using the uplink PMP band for transmitting, the mobile station being further adapted to participate in wireless P2P (peer-to-peer) communications using the PMP uplink band for both transmitting and receiving in a TDD (time division duplex) manner; a transmitter for transmitting PMP communications and P2P communications on the uplink PMP band;
a first receiver for receiving PMP communications on the downlink PMP band;
a second receiver for receiving P2P communications on the uplink PMP band,adapted to listen to PMP communications from the network on the downlink PMP band with the first receiver for maintenance purposes while transmitting P2P communications and while receiving P2P communications with the second receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A network element adapted to:
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participate in PMP communications with a plurality of mobile stations using cellular communications signals transmitted on a cellular spectral resource; determine when a pair of mobile stations which are communicating with each other are sufficiently close together for P2P communications; direct the pair of mobile stations to start communicating with each other using P2P communications by communicating directly with each other using signals in form similar to the cellular communications signals and using said cellular spectral resource; wherein the cellular communications signals are CDMA (code division multiple access) or OFDM signals; wherein said cellular spectral resource comprises a downlink PMP band, and an uplink PMP band, wherein the mobile station is adapted to participate in wireless PMP (point to multi-point) communications using the downlink PMP band for receiving and using the uplink PMP band for transmitting, the mobile station being further adapted to participate in wireless P2P (peer-to-peer) communications using the PMP uplink band for both transmitting and receiving in a TDD (time division duplex) manner, a transmitter for transmitting PMP communications and P2P communications on the uplink PMP band;
a first receiver for receiving PMP communications on the downlink PMP band;
a second receiver for receiving P2P communications on the uplink PMP band,adapted to listen to PMP communications from the network on the downlink PMP band with the first receiver for maintenance purposes while transmitting P2P communications and while receiving P2P communications with the second receiver. - View Dependent Claims (22, 23, 24)
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25. A method comprising:
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a mobile station participating in wireless PMP (point-to-multi-point) communications by communicating directly with a cellular base station using cellular communications signals transmitted using a cellular spectral resource; the mobile station participating in wireless P2P (peer-to-peer) communications by communicating directly with another mobile station using signals in form similar to the cellular communications signals using said cellular spectral resource; wherein the cellular communications signals are CDMA or OFDM signals; wherein said cellular spectral resource comprises a downlink PMP band, and an uplink PMP band, wherein the mobile station participates in wireless PMP (point to multi-point) communications using the downlink PMP band for receiving and using the uplink PMP band for transmitting, the mobile station participates in wireless P2P (peer-to-peer) communications using the PMP uplink band for both transmitting and receiving in a TDD (time division duplex) manner; a transmitter for transmitting PMP communications and P2P communications on the uplink PMP band;
a first receiver for receiving PMP communications on the downlink PMP band;
a second receiver for receiving P2P communications on the uplink PMP band,adapted to listen to PMP communications from the network on the downlink PMP band with the first receiver for maintenance purposes while transmitting P2P communications and while receiving P2P communications with the second receiver. - View Dependent Claims (26, 27, 28)
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Specification