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Heterogeneous network resource allocation method assisted by base station of cellular system

A resource allocation and heterogeneous network technology, applied in the direction of electrical components, wireless communication, etc., can solve the problem of limited space for improvement, and achieve the effect of realizing resource reuse and improving spectrum efficiency

Inactive Publication Date: 2013-02-27
HARBIN INST OF TECH
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Problems solved by technology

It can be seen that from the internal design of the LTE system to improve the spectral efficiency, the room for improvement is limited.

Method used

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  • Heterogeneous network resource allocation method assisted by base station of cellular system
  • Heterogeneous network resource allocation method assisted by base station of cellular system
  • Heterogeneous network resource allocation method assisted by base station of cellular system

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specific Embodiment approach 1

[0032] Specific embodiments 1. A heterogeneous network resource allocation method assisted by a cellular system base station,

[0033] Under the heterogeneous network, the base station regularly broadcasts SIB2 signaling, announcing the frequency resources that can be used in each sector for the self-organizing network; each terminal saves the frequency resources that can be used for the self-organizing network in the sector;

[0034] Its resource allocation method is implemented by the following steps:

[0035] Step 1. When the source node wants to initiate a service request, judge whether the ad hoc network mode is available. If the judgment result is yes, then perform step 11; if the judgment result is no, then perform step 12;

[0036] Step 11. The source node operates at the sector frequency f 1 Send out the RREQ signaling, initiate the route query process, and report the resource occupation signaling to the base station at the same time, and inform f 1 The frequency ha...

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Abstract

A heterogeneous network resource allocation method assisted by a base station of a cellular system relates to a heterogeneous network resource allocation method, aiming to realize resource reuse under the heterogeneous network and further to improve the spectrum efficiency. The invention provides a heterogeneous network resource allocation method assisted by the base station. In the heterogeneous network composed of a honeycomb and an ad-hoc network, the base station periodically broadcasts the resources available for the ad-hoc network of each sector according to a resource dispatch table. Each terminal user selects the ad-hoc network as the preferred manner to realize communication according to the available resources, and then constructs multi-hop routing by adopting an AODV (Ad hoc ondemand distance vector) protocol; and each node participating in communication respectively informs the base station of the resources occupied by the link after constructing the routing. After the communication finishes, each node participating in communication informs the base station that the communication finishes, and corresponding resources are released. The heterogeneous network resource allocation method provided by the invention is used in wireless communication process.

Description

technical field [0001] The invention relates to a heterogeneous network resource allocation method. Background technique [0002] The new generation of cellular wireless network (LTE) adopts various advanced technologies to improve the spectrum utilization rate of the system, including the advanced technology of the physical layer and the radio resource management technology of the MAC layer. The technologies of the physical layer include OFDM, MIMO, adaptive modulation and coding technology, hybrid retransmission mechanism and channel adaptive technology. The introduction of these advanced technologies can greatly improve the spectral efficiency and data transmission rate. Many researchers have conducted in-depth research and improvement on these key technologies. It can be seen that, from the internal design of the LTE system to improve the spectrum efficiency, the room for improvement is already limited. This patent considers utilizing idle cellular frequency resources...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
Inventor 沙学军李月吴玮邱昕赵龙海姜来为
Owner HARBIN INST OF TECH
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