A carrier configuration method for a distributed system
A distributed system, carrier configuration technology, applied in electrical components, wireless communication, network planning, etc., can solve the problem of inability to effectively avoid co-channel interference, inability to determine the switching of high-priority carriers, and inability to know the boundary channel to which the UE moves. and other problems to achieve the effect of simplifying the difficulty and eliminating co-channel interference
Inactive Publication Date: 2011-12-21
TD TECH COMM TECH LTD
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Problems solved by technology
[0004] In practical applications, when the network side makes a handover command, it cannot know the boundary channel to which the UE will move.
This will make it impossible for the network side to determine which high-priority carrier to switch to when a cell has multiple border channels and the high-priority carrier settings of each border channel are different. The boundary channel where it is located selects the high-priority carrier corresponding to the boundary channel and configures it for the UE, so co-channel interference cannot be effectively avoided
At present, a carrier configuration method that can solve the above problems has not been proposed
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[0015] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] The core idea of the present invention is to group the carrier resources in the system in advance according to the number of frequency reuses in the system to obtain the same number of carrier groups as the number of frequency reuses, and the cell will use the same carrier group as the high priority of each boundary channel carrier group, and the carrier groups used by adjacent cells are different. When a carrier needs to be configured for a UE, the network will first configure the carrier in the high-priority carrier group of the target cell boundary channel to the UE. In this way, by grouping carriers according to the number of frequency reuses in the system and using the same high-priority carrier group for each border channel ...
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The present invention discloses a carrier configuration method of a distributed system. The method includes: grouping carrier resources in the system in advance according to the frequency reuse number n of the system on the network side to obtain n groups of carriers, and respectively Configure a set of carriers as high-priority carriers for all border channels of the cell, wherein the carrier groups configured by adjacent cells are different, and n is an integer greater than or equal to 1; ) when configuring the carrier, the network side configures the carrier for the UE according to the principle of preferentially using the high-priority carrier of the target cell boundary channel. The invention can effectively avoid co-channel interference.
Description
technical field [0001] The invention relates to cell handover technology in a mobile communication system, in particular to a carrier configuration method of a distributed system. Background technique [0002] Distributed system is a very important application scenario for TD-SCDMA system. For the TD-SCDMA distributed system, it can be subdivided into many scenarios: (a) Multiple single-channel coverage forms a distributed cell (see figure 1 shown); (b) multiple dual-channel coverage forms a distributed cell (see figure 2 shown); (c) single-channel and dual-channel form a mixed distributed cell. Each coverage area in the above-mentioned distributed cells, that is, each cell portion, is not limited to single-channel coverage or dual-channel coverage, and may also be an area covered by any number of channels. For simplicity, the first scenario is taken as an example below for illustration. [0003] When there are multiple distributed cells for networking, usually only the...
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IPC IPC(8): H04W16/14
Inventor 徐绍君佟学俭邢立军
Owner TD TECH COMM TECH LTD