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Coordination of silent periods for dynamic spectrum manager (DSM)

A silent period and dynamic spectrum technology, which is applied in wireless communication, electrical components, network planning, etc., can solve the problems of unsatisfactory spectrum sensing period and high overhead of CR nodes, etc.

Inactive Publication Date: 2012-07-25
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, periodic spectrum sensing may result in higher overhead in CR nodes due to context switching, maintaining buffers and real-time traffic during spectrum sensing time
Thus, a shorter spectrum sensing period is less than ideal from an efficiency standpoint

Method used

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  • Coordination of silent periods for dynamic spectrum manager (DSM)
  • Coordination of silent periods for dynamic spectrum manager (DSM)
  • Coordination of silent periods for dynamic spectrum manager (DSM)

Examples

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Embodiment

[0137] 1. A method for use in a Dynamic Spectrum Manager (DSM) for coordinating periodic periods of silence in a network, the method comprising:

[0138] Bandwidth usage is monitored during predetermined time periods.

[0139] 2. According to the method described in embodiment 1, the method also includes:

[0140] configure the length and frequency of periodic silent periods; and

[0141] The periodic quiet period is scheduled at a configured frequency, wherein the periodic quiet period maintains a maximum quality of service (QoS) for cognitive radio (CR) nodes in the network.

[0142] 3. The method as in any one of embodiments 1-2, wherein the DSM is discovered in an access point (AP).

[0143] 4. The method as in any one of embodiments 1-2, wherein the DSM is discovered in a Home Enhanced Node B (H(e)NB).

[0144] 5. A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous periods of silence in a network, the method comprising:

[0145] Primary ...

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PUM

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Abstract

A method for use in a Dynamic Spectrum Manager (DSM) for coordinating asynchronous silent periods in a network, the method comprising detecting a primary user in the network, transmitting a Silent Period Start Control Message to one or more cognitive radio (CR) nodes in the network, wherein the message indicates the start and duration of a silent period and initiates spectrum sensing,receiving a Measurement Report Control Message from the one or more CR nodes in the network indicating results of spectrum sensing, and transmitting a message to the one or more CR nodes, wherein the message instructs the one or more CR nodes to move to a different frequency based on the spectrum sensing results.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 61 / 261,688, filed November 16, 2009, U.S. Provisional Patent Application No. 61 / 267,914, filed December 9, 2009, U.S. Provisional Patent Application No. 61 / 267,914, filed September 24, 2010 The benefit of application Ser. No. 61 / 386,224, the contents of which are hereby incorporated by reference in their entirety. Background technique [0003] The need for higher bandwidth efficiency of converged network technologies and the reality that today's licensed bandwidth is not efficiently utilized have led to the development of cognitive radio (CR) technology. A CR-enabled device is able to communicate on bandwidth licensed to other devices by performing spectrum sensing operations at certain instants to discover available spectrum and use the available spectrum in times not occupied by primary users. To ensure the coexistence of CR networks with current licensed...

Claims

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Application Information

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IPC IPC(8): H04W16/14H04W72/12
CPCH04W72/082H04W24/10H04W16/14H04W72/541H04W72/04
Inventor M·M·弗雷达A·德米尔A·V·辛丘利A·列兹尼克J·A·关
Owner INTERDIGITAL PATENT HLDG INC
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