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Resource allocation method and cognitive radio system

A cognitive wireless and resource allocation technology, applied in the field of communications, can solve the problems affecting the capacity and quality of service of the backhaul link, and the limited spectrum of the backhaul link, so as to increase the available resources and ensure the capacity and quality of service.

Active Publication Date: 2012-03-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is proposed for the problem that the spectrum of the backhaul link in LTE / LTE-A is very limited, which will affect the capacity and service quality of the backhaul link in the related art. Therefore, the main purpose of the present invention is to provide a resource allocation Methods and cognitive wireless systems to address the above problems

Method used

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  • Resource allocation method and cognitive radio system
  • Resource allocation method and cognitive radio system
  • Resource allocation method and cognitive radio system

Examples

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Embodiment 1

[0069] For the detailed process of primary user protection (notification plus awareness mode), see image 3 . It is explained in detail as:

[0070] Step S302, maintaining candidate spectrum resources. TVDB provides an initial candidate set of available spectrum resources. The candidate set is jointly maintained by all network elements. The CCP aggregates the sensing information from the Node B / B S and the authorized service information from the TVDB, and combines these information to generate available and blank candidate spectrums (channels) available to each BS while providing available spectrum resources. )set.

[0071] In step S304, TVDB updates (adjusts) information about TVWS.

[0072] In step S306, the TVDB notifies the CCP of the relevant TVWS information. The content of TVWS includes but is not limited to: ①Available channels (including working frequency points and bandwidth), note that the bandwidth here can be continuous or discontinuous; ②Coverage (refers to ...

Embodiment 2

[0084] See the detailed process of the main user protection (on the need for perception method) Figure 4 . The detailed explanation is:

[0085] Step S402, maintaining candidate spectrum resources. TVDB provides initial candidate sets available to spectrum resources. The candidate's collection is jointly maintained by each network, and CCP brings together the perception information from Node B / BS and the authorized business information from TVDB. Comprehensive information is comprehensively provided with the available spectrum resources, and the BS available and blank candidate spectrum (channel (channel channel (channel (channel (channel (channel (channel (channel (channel (channel (channel )set.

[0086] Step S404, CCP sends TVWS spectrum resource request messages to TVDB. When the CCP needs additional spectrum resources due to some reasons (such as but not limited to, communication QoS, temporarily added APs), the CCP actively accesses the TVDB to obtain TVWS informati...

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Abstract

The invention discloses a resource allocation method and system. The method comprises the following steps of: acquiring available television blank channel information by a cognitive radio system; determining the resource allocation of a backhaul link between the base station and an access point by the cognitive radio system; and allocating the resources of the backhaul link by the cognitive radio system according to the available television blank channel information. According to the method and system disclosed by the invention, the capacity and service quality of the backhaul link are guaranteed.

Description

technical field [0001] The present invention involves the field of communication. Specifically, it involves a resource allocation method and cognitive wireless system. Background technique [0002] For long-term evolution (Long Term Evolution, referred to as LTE) or long-term evolution (Long Term Evolution-Advance (LTE-A) (LTE-A), there are currently access points: Enhanced Node Basestation (Enhanced Node Basestation Referred to as ENB), Relay, Femto NB, FEMTO NB, Pico NB, and HNB (Home Node Base). Some of these access points can be directly connected, and some directly access Go to the gateway (GATE WAY, referred to as GW), for the connection point that can be directly connected, we are called a return (return) link between them. [0003] Some scenarios in LTE / LTE-A may be wireless links in LTE / LTE-A. For example: in remote areas, the cost of deploying wired connection is too high; ; During the disaster relief period, wired communication is interrupted, and wireless links...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W72/04
CPCH04W72/04H04W16/14
Inventor 魏民赵楠李峰李岩刘星
Owner ZTE CORP
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