Wireless communication method and system with controlled WTRU peer-to-peer communications

• US 7,239,874 B2
• Filed: 03/02/2006
• Issued: 07/03/2007
• Est. Priority Date: 10/01/2002
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Chandra, Arty, Kazakevich, Leonid, Chitrapu, Prabhakar R., Hunkeler, Teresa Joanne, Reddy, Gautam G.
• Primary Examiner(s): NGUYEN, HUY D
• Application Number:
  US11/366,114
• Publication Number:
  US 20060148516A1
• Time in Patent Office: 488 Days
• Field of Search: 455/436, 455/437, 455/438, 455/439, 455/426.2, 455/456.1, 455/456.3, 455/552.1, 455/550.1, 455/414.1, 455/419, 455/420
• US Class Current: 455/436
• CPC Class Codes: G01S 5/0027 of actual mobile position, i.e. position determined on mobile
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 84/00 Network topologies
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

Claims

1. A wireless network for providing controlled wireless communications with multi-mode wireless transmit/receive units (WTRUs) that have transceiver components configured for selective operation in an infrastructure communication mode for infrastructure communication in the wireless network and in a peer-to-peer communications mode for peer-to-peer communications with other WTRUs also configured for infrastructure communication in the wireless network, the wireless network comprising:

at least one base station having a transceiver configured for selective operation in an infrastructure communication mode with multi-mode WTRUs; and

a controller configured to selectively control transmission of control signals via infrastructure communications with a WTRU to control peer-to-peer mode communications of that WTRU with other WTRUs and configured to provide override control signals to override selected default WTRU control limits for peer-to-peer mode communications including quality of service thresholds, a maximum duration of a peer-to-peer communication or a restriction as to types of data traffic permitted in peer-to-peer communications.

2. The invention of claim 1 wherein the WTRUs include a wireless local area network (WLAN) modem for the peer-to-peer communications with other WTRUs and the controller is configured to selectively control transmission of control signals via infrastructure communications with a WTRU to control WLAN peer-to-peer mode communications of that WTRU with other WTRUs.

3. The invention of claim 1 wherein the controller is configured to selectively control transmission of control signals via infrastructure communications with a WTRU to control that WTRU to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

4. The invention of claim 3 further comprising a processing component for generating the estimate of the geographic location of the mobile unit based on reception of transmissions from the mobile unit.

5. The invention of claim 1 wherein at least some of the WTRUs are mobile units and the controller configured to selectively control transmission of control signals via infrastructure communications with a mobile unit to control that mobile unit to switch between infrastructure communication mode and peer-to-peer communication mode based on an estimate of the geographic location of the mobile unit.

6. A method of wireless communication for a wireless network that provides controlled wireless communications with multi-mode wireless transmit/receive units (WTRUs) that have transceiver components configured for selective operation in an infrastructure communication mode for infrastructure communication in the wireless network and in a peer-to-peer communications mode for peer-to-peer communications with other WTRUs also configured for infrastructure communication in the wireless network, the method comprising the step of:

transmitting from a network base station in an infrastructure communication mode control signals to a WTRU to control peer-to-peer mode communications of that WTRU with other WTRUs;

using selected default control limits for peer-to-peer mode communications including quality of service thresholds, a maximum duration of a peer-to-peer communication or a restriction as to types of data traffic permitted in peer-to-peer communications; and

overriding said defaults based the control signals transmitted by the network base station.

7. The method of claim 6 wherein a maximum duration of a peer-to-peer communication and a restriction as to types of data traffic permitted in peer-to-peer communications are included as the default control limits used for peer-to-peer mode communications.

8. The method of claim 6 wherein wireless local area network (WLAN) modems are used for the WTRU peer-to-peer communications.

9. The method of claim 6 wherein the control signals are transmitted to the WTRU to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

10. The method of claim 6 wherein the WTRU is a mobile unit and the control signals are transmitted to the mobile unit to switch between infrastructure communication mode and peer-to-peer communication mode based on an estimate of the geographic location of the mobile unit.

11. The method of claim 10 wherein the estimate of the geographic location of the mobile unit is generated based on signals received from the mobile unit by the network base station.

12. The method of claim 6 wherein the WTRU is configured to selectively function in a relay mode to relay a communication between a network base station via infrastructure communication mode and another WTRU via peer-to-peer communication mode further comprising controlling the WTRU to function in the relay mode based on Quality of Service criteria.

13. The method of claim 6 wherein quality of service thresholds formulated based on quality of radio signal, power consumption, and/or cost of communication are included as the default control limits used for peer-to-peer mode communications.