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Distribution method of time frequency resource

An allocation method and technology for time-frequency resources, applied in the field of time-frequency resource allocation, can solve the problem of not considering the average of interference between adjacent co-frequency cells, and achieve the effect of wide space

Inactive Publication Date: 2007-07-25
HUAWEI TECH CO LTD
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Problems solved by technology

[0007] The technical problem solved by the present invention is to provide a method for allocating time-frequency resources, which can convert the problem of interference averaging into an offset sequence corresponding to a time-frequency pattern while satisfying the equidistant distribution of subcarriers occupied by users within a time unit In order to solve the problem of averaging the interference between adjacent co-frequency cells that is not considered in the current technology

Method used

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] Please refer to FIG. 2, which is a flowchart of a method for allocating time-frequency resources according to the present invention, the method comprising:

[0040] Step S11: by the polynomial f ( i ) = Σ j = 0 k n j x ( i ) j , i=0,1 , 2,...L-1, generate multiple sequences {f(i)}, where k is a non-negative integer, the L is the length of the sequence, the x(i) is a parametric equation, and the polynomial The multiplication and addition operations of are performed in Galois field GF(Q), where Q=p m , p is a prime number, m is a non-negative integer, n j is a se...

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Abstract

The method includes steps: each point in sequence x(i) with length L, i=0, 1, 2,apostrophe L-1 is served as a independent variable of k order polynomial; changing coefficient of polynomial to generate multiple sequence f(i) with length L, where k is nonnegative integer; operation in polynomial is carried out in Galois Field GF(Q), where Q=pm, p as a prime number, and m as nonnegative integer; assigning generated sequences to multiple sectors to set of create biased sequences for each sector; it is different in constant terms of polynomial, and identical to other coefficients of coefficients corresponding to sequence assigned to same sector; creating corresponding time - frequency pattern (TFP) unit from biased sequences of the sector; repeating TFP unit with equal interval in frequency domain so as to obtain integrated TFP. The invention solves issue that current techniques have not considered flattened interference between adjacent common frequency sectors.

Description

technical field [0001] The invention relates to communication technology, in particular to a method for allocating time-frequency resources in a communication system. Background technique [0002] Geographical areas are used to distinguish wireless communication systems, such as cellular wireless communication systems, and frequency reuse is realized by dividing geographically different communication areas, so as to increase the capacity of the wireless communication system. The cellular radio communication system increases the capacity of the cellular radio communication system by dividing a large service area into many smaller coverage areas to achieve frequency reuse. Each small coverage area may be referred to as a cell. In order to adopt a plan with a frequency reuse factor of 1 and improve the frequency utilization efficiency of the cellular wireless communication system, different cells may use the same frequency. However, if different cells use the same frequency, ...

Claims

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Application Information

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IPC IPC(8): H04L5/26H04L5/02
Inventor 曲秉玉范霄安
Owner HUAWEI TECH CO LTD
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