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Method and device for realizing almost blank subframe processing and synchronization between base stations

A quasi-blank subframe and processing method technology, which is applied in the field of quasi-blank subframe processing and synchronization between base stations, can solve the problem that ABS subframe configuration cannot be synchronized, and achieve the effect of reducing size and enhancing accuracy

Inactive Publication Date: 2011-07-27
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The purpose of the present invention is to provide an ABS processing method and equipment to solve the problem that the periodic ABS subframe configuration in the prior art cannot be synchronized.

Method used

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  • Method and device for realizing almost blank subframe processing and synchronization between base stations
  • Method and device for realizing almost blank subframe processing and synchronization between base stations
  • Method and device for realizing almost blank subframe processing and synchronization between base stations

Examples

Experimental program
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Effect test

Embodiment 1

[0101] Image 6 It is a schematic diagram of the implementation process of the ABS processing method in mode 1. As shown in the figure, when the air interface is used to obtain the SFN and report the SFN difference or subframe difference of the neighboring cell / local area, the following steps may be included:

[0102] Step 601, the serving base station configures ANR measurement;

[0103] Step 602, the UE obtains the MIB of the cell under the neighboring base station;

[0104] In this step, the network side initiates the SON-ANR process for the cell under the neighboring base station. This process enables the UE to synchronize to the neighbor cell and read the system information of the neighbor cell, including the MIB message of the neighbor cell. The UE reads and parses the MIB message, from which the value of the SFN of the neighboring cell can be obtained;

[0105] Step 603, the UE analyzes the subframe offset of the neighboring cell and its own subframe and calculates t...

Embodiment 2

[0113] Figure 7 It is a schematic diagram of the implementation flow of the ABS processing method in mode 2. As shown in the figure, when the air interface is used to obtain the SFN / subframe offset and report the adjacent cell SFN / subframe offset, the following steps may be included:

[0114] Step 701, the serving base station configures ANR measurement;

[0115] Step 702, the UE synchronizes with the cell under the Lee base station, and obtains the subframe offset and MIB of the cell under the neighboring base station;

[0116] Step 703, the UE parses out the SFN of the neighboring cell;

[0117] Step 704, the UE reports the neighboring cell SFN / subframe offset to the serving cell;

[0118] Step 705, performing ABS cycle configuration coordination between base stations;

[0119] Step 706, the serving base station calculates the SFN difference / subframe difference between the own cell and the neighboring cell;

[0120] Step 707, the serving cell configures an ABS for the U...

Embodiment 3

[0128] This embodiment describes a process application in the femto and Macro scenario. There is no X2 interface between the femto and the Macro cell, and the ABS subframe is configured by the femto. , Administration and Maintenance) configure the ABS information of the home base station to the macro base station. The macro base station obtains the deviation between the SFNs of the two base stations through the user's ANR measurement, and considers the deviation in subsequent user scheduling and measurement.

[0129] The above "considering the deviation in subsequent user scheduling and measurement" can be based on the SFN under femto configured by the macro base station for the UE affected by femto, and the SFN deviation value sent by the UE to calculate the femto-configured ABS sub- The frame corresponds to the SFN value of the macro base station, and according to the SFN value of these macro base stations, the scheduling and measurement configuration of the UE under it is p...

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Abstract

The invention discloses a method and device for realizing almost blank subframe (ABS) processing and synchronization between base stations. The method comprises the following steps: a base station acquires a system frame number (SFN) difference / subframe difference between a service cell of user equipment (UE) and an adjacent cell; and the base station allocates UE measurement and network-scheduled ABS according to the SFN difference / subframe difference, an ABS period and an initial frame number of the adjacent cell, thus the ABS allocation of the service cell is synchronous with the ABS allocation of the adjacent cell. By applying the method and device disclosed by the invention, periodic almost blank subframe allocation at a network side can be in synchronous correspondence even if the system frame number is not consistent, thus the accuracy of time domain correspondence of the almost blank subframes adopted by different base stations is enhanced.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and equipment for processing quasi-blank subframes and realizing synchronization between base stations. Background technique [0002] For ease of expression, in this application, MUE (macro user equipment) refers to a UE (User Equipment, user equipment) that has no CSG (Closed Subscriber Group, Closed Subscriber Group) capability at all; or for a Femto (femtocell base station ) is a non-member UE, and the Femto’s CSG ID (closed subscriber group identifier) ​​is not in the UE’s CSG whitelist; [0003] Femto: a low-power home base station that only member UEs can access; [0004] Macro: macro base station; [0005] PUE: A UE that accesses pico (pico cellular base station) and works under pico. [0006] figure 1 Schematic diagram of the coverage hole for the MUE to enter the Femto, for the case of a closed mode femtocell, such as figure 1 As shown, UE1 belongs to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W56/00
Inventor 彦楠许森彭莹
Owner DATANG MOBILE COMM EQUIP CO LTD
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