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Heterogeneous network frequency spectrum resource distribution method and apparatus

A spectrum resource allocation, heterogeneous network technology, applied in the field of mobile communication, can solve problems such as not adapting to actual needs

Inactive Publication Date: 2015-07-29
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a heterogeneous network spectrum resource allocation method and device, which solves the problem that the existing resource allocation mode does not meet the actual needs

Method used

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  • Heterogeneous network frequency spectrum resource distribution method and apparatus
  • Heterogeneous network frequency spectrum resource distribution method and apparatus
  • Heterogeneous network frequency spectrum resource distribution method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment 1: In this example, spectrum allocation is performed with network benefit maximization as the objective function

[0079] This embodiment provides a heterogeneous network spectrum resource allocation method, the application scenario is as follows figure 1 As shown, K different types of macro base stations and low-power node base stations with different service radii are overlapped and arranged in the same area, and the shared core network provides a total bandwidth of BW total spectrum resources. Scheduling of heterogeneous network multi-granularity spectrum resources based on user demand feedback, the specific process is as follows figure 2 shown, including:

[0080] In step 201, the base station reports base station location information, transmission power, channel requirements, and base station type to the network resource scheduler through a control channel.

[0081] Step 202, the network resource scheduler calculates the total number of available cha...

Embodiment 2

[0125] Embodiment 2: The embodiment considers three types of base stations

[0126] In this embodiment, the heterogeneous network model is determined as a three-layer heterogeneous network composed of three types of low-power base stations: Famto, Pico, and Relay. The layers are distributed in an area of ​​1000m×1000m, and the total bandwidth of the system to be allocated provided by the core network is shared. BW total =20MHz. The network multipath transmission model conforms to the Rayleigh distribution.

[0127] An embodiment of the present invention provides a heterogeneous network spectrum resource allocation method, using this method to complete the resource allocation process as follows figure 2 shown, including:

[0128] In step 201, the base station reports base station location information, transmission power, channel requirements, and base station type to the network resource scheduler through a control channel.

[0129] Three types of access network communicat...

Embodiment 3

[0139] Embodiment 3: This embodiment considers that the channel has not been invoked

[0140] This embodiment provides a heterogeneous network spectrum resource allocation method for heterogeneous network multi-granularity spectrum resources based on user demand feedback, which is different from Embodiment 2 in that when generating channel numbers, all channel calculation numbers are from The division starts from the left end of the frequency band. If the available bandwidth is not an integral multiple of the service bandwidth, the frequency band at the rightmost end of the available bandwidth cannot be called (such as Figure 6 Shown in the shaded area in the middle), resulting in low usage efficiency and waste of frequency bands. In this example, the cross numbers at both ends of the frequency band to be allocated are used to divide the channels, as shown in the attached Figure 10 shown in . The shaded area in the figure shows the remaining bandwidth after the allocated b...

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Abstract

Provided are a method and device for allocating a spectrum resource of a heterogeneous network, which relate to the field of mobile communications and solve the problem that the existing resource allocation manner does not fit actual demands. The method comprises: according to the interference intensity between base stations, calculating, by a network resource scheduler, bandwidth interference factors when the base stations use idle sub-channels; and comparing, by the network resource scheduler, the bandwidth interference factors when each of the base stations uses the same idle sub-channel, and according to a comparison result, allocating the idle sub-channels to each of the base stations. The technical solution provided in the embodiments of the present invention is suitable for a heterogeneous network and achieves reasonable channel allocation with low interference.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a heterogeneous network spectrum resource allocation method and device. Background technique [0002] In the broadband wireless communication system, under the condition of limited spectrum resources, in order to meet the increasing demand for data services and user capacity, a large number of low-power nodes such as pico base stations and femto base stations are introduced into the traditional cellular network, forming A multi-layer heterogeneous network environment composed of various base stations such as macro base stations, micro base stations, pico base stations and relay nodes is established. [0003] In order to improve the spectrum utilization efficiency of the whole system, low-power base stations and macro base stations in heterogeneous networks will use time, space and frequency multiplexing technology. Since the coverage areas of macro base stations and l...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W16/14
CPCH04W16/10
Inventor 王绍鹏秦洪峰李斌赵刚闫金凤熊高才叶方牛翀宇李一兵
Owner ZTE CORP
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