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Method and apparatus for peer discovery interference management in wireless wide area network

A peer-to-peer and resource discovery technology, applied in the field of peer discovery and interference management, can solve problems such as increasing delay, reducing range, and reducing transmit power

Active Publication Date: 2015-09-30
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, reducing transmit power reduces peer discovery range and / or increases peer discovery latency

Method used

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  • Method and apparatus for peer discovery interference management in wireless wide area network
  • Method and apparatus for peer discovery interference management in wireless wide area network
  • Method and apparatus for peer discovery interference management in wireless wide area network

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Embodiment Construction

[0024] The following detailed description in conjunction with the accompanying drawings is intended to be an illustration of various configurations, rather than to indicate that the design concept described herein can only be realized through these configurations. The detailed description includes specific details for the purpose of providing a thorough understanding of various design concepts. It will be apparent, however, to one skilled in the art that these design concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring these design concepts.

[0025] Several aspects of the communication system will now be presented with reference to various apparatus and methods. These apparatuses and methods will be described in the following detailed description and illustrated by various blocks, modules, components, circuits, steps, procedures, algorithms, etc. (collecti...

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PUM

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Abstract

A method of operating a wireless device is provided in which the wireless device determines to use one grouping of peer discovery resources of a plurality of groupings of peer discovery resources based on one of a path loss or a distance to a base station. The plurality of groupings include a first grouping of resources having a first plurality of identical subsets of resources and a second grouping of resources having a second plurality of identical subsets of resources. Each of the first plurality of identical subsets of resources extends over at least one of a different time period or a different number of subcarriers than each of the second plurality of identical subsets of resources. The wireless device transmits a peer discovery signal on one subset of the identical subsets of said one grouping of peer discovery resources.

Description

technical field [0001] This application relates generally to communication systems and, more specifically, to peer discovery interference management in wireless wide area networks (WWANs). Background technique [0002] In a WWAN, all communication between mobile stations goes through uplink / downlink channels between wireless devices and base stations. Two communicating wireless devices that are in close proximity to each other can communicate directly without going through a base station. This direct peer-to-peer communication enables new types of services and / or reduces the traffic load on the base station. [0003] In order to achieve peer-to-peer communication, wireless devices that are in close proximity to each other must be able to discover each other. Wireless devices can discover each other by periodically sending peer discovery signals. The presence of a wireless device can be detected by receiving and decoding a peer discovery signal from the wireless device. W...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/00H04W72/54
CPCH04W8/005H04W72/06H04W72/563H04W72/04H04W72/542
Inventor S·帕蒂尔X·吴H·王厉隽怿T·J·理查森
Owner QUALCOMM INC