Resource allocation method in wireless communication

A technology of resource allocation and wireless communication, applied in the field of information transmission, can solve the problems such as the inability to realize the frequency reuse coefficient cellular system structure, the failure to truly avoid the interference of adjacent cells, and the inability to realize the frequency reuse coefficient, so as to improve the signal-to-interference ratio. , reducing complexity and improving spectral efficiency

Inactive Publication Date: 2008-08-20
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

Therefore, the frequency reuse factor of this method is between 1 and 3, and it is still impossible to achieve a frequency reuse factor of 1.
[0005] When solving cell edge problems such as co-channel interference, in the prior art, although the frequency reuse coefficient of the interf...

Method used

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  • Resource allocation method in wireless communication
  • Resource allocation method in wireless communication
  • Resource allocation method in wireless communication

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Embodiment

[0024] Without loss of generality, the resource allocation method will be described below by taking M=4 and dividing a sector into two areas, an inner ring and an outer ring, according to space as an example.

[0025] Such as figure 1 As shown, the user equipments at the center of each sector can share the sequence resource m=4. The user equipment at the edge of sector S1 (also known as the outer ring) uses sequence resource m=1, the user equipment at the edge of sector S2 uses sequence resource m=2, and the user equipment at the edge of sector S3 uses sequence resource m=3 . Here, different from the partial frequency reuse method, the frequency reuse factor of three adjacent sectors is 1 instead of 3. Orthogonality between adjacent sectors is achieved through sequence orthogonality. Further, in order to improve the utilization rate of sequence space, the user equipment in the inner ring of sector S1 can also use sequence resources m=2 and m=3, and the user equipment in th...

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Abstract

The invention relates to a resource allocating method in the wireless communication, comprising the following steps: determining which region in the section the user belongs to; the system distributes the different subclass in sequence space to the different region of the section towards each section in the system. The invention makes the coverage area of the specified sequence different through the power control way, enhanced the noise-signal ratio, so as to enhance the spectrum effectiveness of the system. According to the method, wireless resources is dynamically distributed to different sections(or areola), which can enhance the spectrum effectiveness of the system greatly, realize that the coefficient of frequency multiplexing is one, and greatly reduce the complexity of the frequency planning when area deployment.

Description

technical field [0001] The invention belongs to the field of information transmission, in particular to the allocation of wireless resources in the air interface. Background technique [0002] In existing multi-carrier cellular wave transmission systems, such as the LTE being discussed in 3GPP, it is still impossible to achieve a frequency reuse factor of 1 in all cells. This is because, when using OFDM (or OFDMA) to transmit at the same frequency at the same time, for the interference of adjacent cells, the existing technical solutions have never avoided the interference of adjacent cells to the same user, and the power of such interference is usually much greater than thermal noise , causing the user to always work at a lower SNR level. [0003] Therefore, two common methods at present are interference reduction and interference avoidance (Inter-cell-interference coordination / avoidance). The way to deal with interference reduction is to accept the existence of interferen...

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Application Information

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IPC IPC(8): H04Q7/36H04B7/005
Inventor 王海仲川梁宗闯
Owner BEIJING SAMSUNG TELECOM R&D CENT
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