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Method and base stations for eliminating paging interference in heterogeneous network

一种异构网络、基站的技术，应用在通讯领域，能够解决干扰消除没有明确的解决方案等问题，达到减少寻呼干扰的效果

Active Publication Date: 2012-04-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found in practice that in the LTE system, there is no clear solution to the interference elimination in the paging process

Method used

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  • Method and base stations for eliminating paging interference in heterogeneous network
  • Method and base stations for eliminating paging interference in heterogeneous network
  • Method and base stations for eliminating paging interference in heterogeneous network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] see image 3 , image 3 A schematic diagram of a scene of paging interference between a macro base station and a home base station provided in the first embodiment.

[0077] Such as image 3As shown, the macro base station and the femto base station coexist in the heterogeneous network. The user equipment served by the macro base station is UE2, and the user equipment served by the home base station is UE1. When UE2 moves to the overlapping area of ​​the macro base station and the home base station (that is, the intersection area of ​​the coverage of the macro base station and the coverage area of ​​the home base station), UE2 will be interfered by the paging of the home base station.

[0078] Assume that the paging parameter nB=T configured by the macro base station, broadcast DRX cycle=T c , then the macro base station sends the paging parameter nB=T and the broadcast DRX cycle=T through the interface with the home base station c sent to the home base station. A...

Embodiment 2

[0082] see Figure 5 , Figure 5 A schematic diagram of a scene of paging interference between a macro base station and a pico base station provided in the second embodiment.

[0083] Such as Figure 5 As shown, the macro base station and the pico base station exist in the heterogeneous network at the same time. The user equipment served by the macro base station is UE2, and the user equipment served by the pico base station is UE1. When UE1 moves to the overlapping area of ​​the macro base station and the pico base station (that is, the intersection area of ​​the coverage of the macro base station and the coverage area of ​​the pico base station), UE1 will be interfered by the paging of the macro base station.

[0084] Assume that the paging parameter nB configured by the pico base station is T / 2, and the broadcast DRX cycle=T c , then the pico base station sends the paging parameter nB=T / 2 and the broadcast DRX cycle=T through the interface with the macro base station c...

Embodiment 3

[0088] see also Figure 5 , assuming that the value of the paging parameter nB configured by the pico base station is T / 2, the pico base station sends the paging parameter nB=T / 2 to the macro base station through the interface with the macro base station. After the macro base station receives the paging parameter nB sent by the pico base station, it knows that N=T / 2, (N takes the minimum value between T and nB), and calculates N=T / 2 using the above formula (2) The set of paging frames of the pico base station is all even frames; further, the N s =1(N s Take the maximum value between 1 and nB / T), N=T / 2 is substituted into the formula (1) to calculate that the paging opportunities for sending paging information of the pico base station are all 0, then according to Table 1, it can be known that the pico base station The subframes used to send paging information are all subframe 0.

[0089] Assuming that the value of the paging parameter nB configured by the macro base station ...

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Abstract

The embodiment of the invention relates to the technical filed of communication, and discloses a method and base stations for eliminating paging interference in a heterogeneous network. The method for eliminating paging interference includes that a first base station receives paging parameters nB sent by a second base station, the first base station calculates subframes the second base station use for sending paging information and paging frames the busframes belong to according to the paging parameters nB of the second base station, the first base station obtains a set period, the first base station sends the paging information on the subframes in the paging frames in the set period, and the first base station stops sending information on the subframes in the paging frames in a subsequent set period. The embodiment of the method and the base stations for eliminating paging interference can reduce the paging interference in the heterogeneous network.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for eliminating paging interference in a heterogeneous network and a base station. Background technique [0002] In a long term evolution (Long term evolution, LET) wireless communication system, a macro base station and a low power base station can be deployed in the same network cell at the same time, and this kind of network is called a heterogeneous network (Heterogeneous Network, HN). Wherein, the low-power base station may include but not limited to a micro base station, a pico base station, a home base station, and a relay station. Low-power base stations can be used to cover hot spots, indoors, blind spots or cell edges of cells, and can improve the average throughput of cells and the throughput of cell edges. In a heterogeneous network, in order to improve the spectrum utilization efficiency of the system as much as possible, the macro base station and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W68/02H04W72/54
CPCH04W68/00H04W72/082H04W68/02H04W72/541
Inventor 白伟余政马莎
Owner HUAWEI TECH CO LTD