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Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling

A technology for transmission power control and peer-to-peer communication, applied in transmission control/equalization, sustainable buildings, climate sustainability, etc., to solve problems such as underutilized wireless spectrum

Active Publication Date: 2009-10-14
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In wide area network systems such as cellular systems, the radio spectrum allocated to the WAN is often not fully utilized

Method used

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  • Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling
  • Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling
  • Methods and apparatus related to power control and/or interference management in a mixed wireless communications system supporting wan signaling and peer to peer signaling

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] figure 1is a flowchart 100 of an exemplary method of operating a wireless communication device supporting peer-to-peer communication in a base station uplink frequency band. Operation begins in step 102 where the wireless communication device is powered on and initialized and proceeds to step 104 . In step 104, the wireless communication device receives a first signal from a base station in a downlink frequency band. In some embodiments, the first signal is a beacon signal. In some such embodiments, the beacon signal includes up to three OFDM tones, and the tones of the beacon signal have a per-tone transmit power level that is greater than the average per-tone transmit power level of the non-null tones of the peer-to-peer signal At least 10dB higher. In some embodiments, the first signal is a broadcast channel signal. In some such embodiments, the broadcast channel signal includes a set of OFDM tones having a per-tone transmit power level that is at least at least ...

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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. The base station regulates the level of interference from the peer to peer signaling by generating and transmitting peer to peer transmission power control signals intended for peer to peer wireless terminals in the local vicinity. A base station transmits into a downlink frequency band a signal, e.g., a beacon or broadcast channel signal, to be used by a peer to peer wireless terminal in controlling its peer to peer transmit power level into the corresponding uplink frequency band. The peer to peer wireless terminal receives and evaluates the base station signal. The determined information from the evaluation is used in determining whetheror not peer to peer signal transmission is permitted and / or in determining a peer to peer transmission power level.

Description

[0001] related application [0002] This application claims priority to U.S. Provisional Patent Application S.N. 60 / 845,053, filed September 15, 2006, entitled "BEACONS IN AMIXED WIRELESS COMMUNICATION SYSTEM," and filed June 18, 2007, entitled "METHODS AND APPARATUS RELATED TO PEER TO PEER DEVICECONTROL", a continuation-in-part of U.S. Patent Application S.N.11 / 764,332, both of which are expressly incorporated herein by reference, and both are assigned to the assignee of the present application . technical field [0003] Various embodiments relate to methods and apparatus for wireless communications, and more particularly to methods and apparatus related to peer-to-peer communications. Background technique [0004] Wireless spectrum is an expensive and valuable resource. In wide area network systems such as cellular systems, the radio frequency spectrum allocated to the WAN is often not fully utilized. It would be advantageous to develop methods and apparatus that could ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005
CPCY02B60/50
Inventor 厉隽怿R·拉罗亚
Owner QUALCOMM INC