MRS (Mobile Relay Station) PCI (physical cell ID) distribution method

An allocation method and re-allocation technology, applied in the direction of electrical components, wireless communication, network data management, etc., can solve the problems of increased PCI allocation delay, inapplicability, and unsuitable application, etc., to reduce processing load and signaling overhead , Avoid PCI collision and save link resources

Inactive Publication Date: 2011-10-12
SHANGHAI RES CENT FOR WIRELESS COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] After analysis, such a solution cannot completely avoid PCI collisions, and is not suitable for fast-moving MRS
This is because on the one hand, processing information by OAM (Operation Administration and Maintenance) will increase the PCI allocation delay; on t

Method used

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  • MRS (Mobile Relay Station) PCI (physical cell ID) distribution method
  • MRS (Mobile Relay Station) PCI (physical cell ID) distribution method
  • MRS (Mobile Relay Station) PCI (physical cell ID) distribution method

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0042] Example one

[0043] This embodiment provides an MRS PCI allocation method, which includes the following steps:

[0044] [Step A] Set up a PCI allocation detection list at the macro base station side of each cell; the PCI allocation detection list includes Table 1, Table 2, and a reclaim table; the Table 1 is used to store the available PCI; the Table 2 is used To store the PCI that is already in use; the recovery table is used to store the spare PCI. The available PCI is a certain number of PCIs randomly selected from the remaining PCIs in the cell in addition to the fixed PCI in the cell and the fixed PCI in the neighboring cell. The table two includes a first module and a second module; the first module is used to store the adjacent cells of this cell and the fixed PCI in this cell, and the PCI stored in this module is static; the second module is used for To store the PCI of the newly introduced site, if the PCI of the newly introduced site conflicts with the PCI in Ta...

Example Embodiment

[0056] Example two

[0057] In this embodiment, a high-speed moving train is taken as an example. The MRS PCI collision detection scenario is as follows: figure 1 Shown:

[0058] First, according to the principle of non-conflict PCI between neighboring cells, a PCI list is configured for each macro base station. The list includes three parts: Table 1, Table 2, and Recovery Table.

[0059] Table 1: Store available PCI;

[0060] According to the search of each cell, we can know the macro base stations adjacent to the cell and the fixed PCI in the cell. These PCIs are excluded, and a certain number of PCIs are randomly selected from the remaining PCIs to establish a dedicated PCI list, as shown in Table 1. For the allocation of MRS PCI, the setting must follow the principle of no conflict between the exclusive lists of adjacent cells.

[0061] Table 2: Store PCIs that are already in use;

[0062] The content contained in this list can be divided into two modules for consideration:

[0063] ...

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Abstract

The invention discloses a MRS (Mobile Relay Station) PCI (physical cell ID) distribution method. The method comprises the following steps: step A, a PCI distribution detection list is configured at the terminal of a macro base station of each cell; step B, information interaction of the PCI distribution detection lists can be carried out between the macro base station of the cell in which the MRS locates and macro base stations of the cells adjacent to the cell in which the MRS locates so as to predict a possible PCI collision caused by the MRS; step C, if a collision is predicted, the macro base station of the cell in which the MRS locates can redistribute a PCI for the MRS to avoid the predictable collision. In the invention, the PCI of the MRS is configured at the terminal of the macro base station to detect the MRS entering in the cell in advance and can be changed in advance if a collision happens, thus avoiding the happening of PCI collision; besides, the invention transfers the work of PCI configured by an OAM (Operation Administration and Maintenance) to the macro base station in which the MRS locates, so the delay brought from the OAM configuration can be avoided; and meanwhile, the monitoring and reporting works of the MRS can be saved, the processing load and the signaling cost of the MRS can be alleviated and the backhaul link resource can be saved.

Description

technical field [0001] The invention belongs to the field of wireless communication, is oriented to the fourth-generation mobile communication technology, and relates to an MRS PCI allocation method. Background technique [0002] The mobile communication technology with the greatest development potential and the broadest market prospect in today's communication field has ushered in the 3G era. However, in order to solve problems such as the shortage of spectrum resources, limited system capacity, and increasing UE demand, the International Telecommunication Union (ITU) launched the technical solicitation work for the fourth-generation mobile communication system IMT-Advanced in February 2008. In response to the ITU-R IMT-Advanced technical solicitation, 3GPP, which once formulated the most influential 3G UMTS technical standard in the industry, was unwilling to be left alone, and launched the LTE-Advanced standard process in March 2008. A characteristic of the LTE-A system ...

Claims

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Application Information

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IPC IPC(8): H04W8/26H04W16/02H04W16/24H04W24/00
Inventor 杜婷徐景杨馨朱元萍
Owner SHANGHAI RES CENT FOR WIRELESS COMM
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