Uplink co-site interference inhibiting method
A technology of co-site interference and interference source, which is applied in the directions of power management, electrical components, wireless communication, etc., can solve the problems such as the inability to effectively solve the upstream co-site interference and the inability to effectively suppress the upstream co-site interference, and achieve the suppression of co-site. Interference, the effect of solving co-site interference
Inactive Publication Date: 2014-03-19
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology
[0007] However, neither the static interference coordination nor the dynamic interference coordination scheme in the prior art can effectively solve the problem of uplink co-location interference, because both the static interference coordination and the dynamic interference coordination scheme in the prior art divide users into edge Users and central users achieve the purpose of interference suppression by limiting the available frequency resources of edge users, but this method is only effective for interference suppression between edge users, and some central users that are closer to the base station may also interfere with co-located adjacent cells. The edge users generate strong interference, but the method of the prior art cannot solve it. It can be seen that the method of the prior art cannot effectively suppress the uplink co-location interference
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the solutions of the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0030] Before describing the technical solution of the present invention in detail, a brief introduction of relevant terms involved in the present invention is firstly made.
[0031] The source cell refers to a cell whose interference exceeds the first threshold, and the source cell may also be called an interfered cell.
[0032] The target cell refers to a cell whose served users generate strong interference to the source cell, and the target cell may also be called an interference-generating cell.
[0033] The interference source user refers to a user in the target cell that causes strong interference to the source cell, and the interference source user may also be referred to as an interference generating user.
[0034] figure 2 I...
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The invention discloses an uplink co-site interference inhibiting method, which comprises the following steps that: A. a cell of origin requests a co-site neighboring region for inhibiting the uplink interference; B. an interference-source user in a service region of the co-site neighboring region is searched according to the request of the cell of origin; and C. the uplink transmitting power of the interference-source user in the co-site neighboring region is reduced, so the uplink interference power of the user in the cell of origin is smaller than a preset second threshold, and the reduced uplink transmitting power of the interference-source user is more than a preset third threshold. By adopting the method, the uplink co-site interference can be effectively inhibited.
Description
technical field [0001] The invention relates to the field of mobile communication, in particular to an uplink co-location interference suppression method. Background technique [0002] In a cellular mobile communication system using Orthogonal Frequency Division Multiplexing (OFDM) technology, users in a cell realize signal orthogonality through frequency division, which better solves the problem of interference in the cell. It will bring strong inter-cell interference, which can be divided into co-site interference and non-co-site interference. Since the discussion scope of the present invention is co-site interference, the co-site interference will be introduced in detail below. [0003] figure 1 It is a network topology diagram of a cellular mobile communication system. Such as figure 1 As shown, in practical applications, the serving cell of a base station is divided into three sectors, and each sector can be called a cell. Usually, the three cells under the coverage ...
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IPC IPC(8): H04W16/14H04W52/14
Inventor 孟艳李维娜邱禹
Owner POTEVIO INFORMATION TECH CO LTD