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Method for strengthening X2 interface resource state signaling

A technology of resource status and resource status request, applied in access restriction, wireless communication, electrical components, etc., can solve the problem of not indicating the remaining resource status information of the cell, and achieve the effect of reducing complexity

Inactive Publication Date: 2009-12-23
XIDIAN UNIV
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Problems solved by technology

[0014] The purpose of the present invention is to overcome the problem that the existing X2 interface resource state signaling does not indicate the remaining resource state information of the cell, and propose a method for enhancing the X2 interface resource state signaling to indicate the remaining resource state of the cell, and realize the control of the cell. Improvement of Input Parameters of Comprehensive Criteria for Cell Selection in Handover

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  • Method for strengthening X2 interface resource state signaling
  • Method for strengthening X2 interface resource state signaling
  • Method for strengthening X2 interface resource state signaling

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Embodiment Construction

[0028] Reference figure 1 The present invention is mainly based on the resource status report initialization process and resource status report process in the X2 interface application layer protocol of the existing LTE-Advanced system. The specific implementation steps are as follows:

[0029] Step 1. Source base station eNB 1 First to the neighboring base station eNB 2 Send a resource status request message RESOURCESTATUS REQUEST, and the message signaling format is shown in Table 1. In the resource status request message, if the eNB is required 2 To stop reporting information, the registration request information unit is set to "stop"; if the eNB is requested 2 To start reporting information, set it to "start", and put the report feature information unit into the resource status request message. If eNB 1 Request eNB 2 To report the radio resource status, set the first bit of the report feature information unit "Periodic report PRB status" to 1; if the eNB 1 Request eNB 2 To rep...

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Abstract

The invention discloses method for strengthening X2 interface resource state signaling, mainly solving the problem that resource state signaling of X2 interface interaction cannot indicate residual resource state information of a district in an LTE-Advanced system. The invention adopts the following strengthening processes: firstly, a source base station sends a resource state request message to an adjacent base station through an X2 interface for requesting the adjacent base station to periodically report a residual PRB resource state, and the adjacent base station feeds back a response message according to measuring capability per se; secondly, the adjacent base station periodically reports the residual PRB resource state to the source base station; and thirdly, the source base station sends the resource state request message and sets register request information to be 'stopping', and the adjacent base station feeds back the response message and ends work of report and measurement after receiving the message. The invention can realize interaction of the residual resource information of the district with low complexity without increasing an additional X2 interface application layer protocol progress. The residual resource information is a quantitative value, is accurate and reliable, and can be used for a district selection process for switching among honeycomb districts by skipping a district.

Description

Technical field [0001] The present invention relates to the field of wireless communication, in particular to the enhancement of X2 interface signaling in the third-generation long-term evolution of the mobile communication LTE-Advanced system architecture, which can be used in the cell selection process. Background technique [0002] The cell selection criteria of the current LTE-Advanced system are as follows: [0003] 1. Conditions for triggering cell selection: [0004] When Srxlev>0, the user UE performs cell selection. [0005] Srxlev=Q rxlevmeas -(Q rxlev min +Q rxlev min offset )-P compensation . [0006] P compensation =max(P EMAX -P UMAX , 0) [0007] Among them, Srxlev represents the cell selection received power value, Q rxlevmeas Represents the received power value of the cell to be tested, Q rxlev min The minimum required value of cell received power, Q rxlev min offset Indicates that in the VPLMN, when periodically searching for a higher priority PLMN, the relat...

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Application Information

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IPC IPC(8): H04W24/10H04W48/06H04W48/08H04W92/20
Inventor 盛敏黄超史琰李建东李红艳
Owner XIDIAN UNIV
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