Method for distributing resources between main service cell and coordinate cells
A technology of main service cell and cooperative cell, applied in the direction of network traffic/resource management, advanced technology, electrical components, etc., can solve problems such as complexity and impossibility, achieve low complexity, less signaling data, and improve service quality effect
Inactive Publication Date: 2013-01-09
BEIJING UNIV OF POSTS & TELECOMM
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[0007] Therefore, although the traditional cooperative communication solution based on a centralized network structure is feasible in theory, it is almost impossible to realize it in practice due to its complexity.
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[0026] Combine below figure 1 The content of the present invention is described in detail. Such as figure 2 As shown in , it is a flow chart of realizing coordinated multipoint communication by adopting the resource allocation method between the primary serving cell and the coordinated cell in the present invention.
[0027] Step 1: User equipment UE1, UE2, UE3, and UE4 obtain channel parameters and signal-to-interference and noise ratios between different cell base stations and the user equipment by receiving reference signals sent by multiple cell base stations C1, C2, and C3 (Signal to Interference plus Noise Ratio, SINR, referred to as Signal to Interference and Noise Ratio), choose one of them as the main serving cell base station. by figure 1 For example, user equipment UE1 and UE4 select the cell where cell base station C2 is located as the primary serving cell by comparing the obtained channel performances of base stations in each cell, and then feed back the colle...
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The invention relates to a technique for realizing coordinate multipoint communication, in particular to a method for coordinating resource distribution between a main service cell and coordinate cells in a wireless cellular network. The method comprises that: user equipment receives reference signals sent by a plurality of cell base stations and selects a main service cell base station and coordinate cell base stations; according to the service rate requirement of the user equipment and feedback channel parameters, the main service cell base station negotiates with the coordinate cell base stations to select a transmission channel; and the main service cell base station negotiates with the coordinate cells to distribute coordination power for performing multipoint coordinate transmission. In the invention, based on the conventional cellular network architecture, computing complexity and signaling interaction amount are lowered by a method for optimizing negotiation by the direct negotiation between the main service cell base station and the coordinate cell base stations. Thus, limited frequency spectrum resources and power resources are used fully, interference is avoided effectively and the service quality at cell edges is improved.
Description
technical field [0001] The invention relates to a technique for realizing coordinated multi-point communication, in particular to a method for resource allocation between a main serving cell and a coordinated cell in a wireless cellular network. Background technique [0002] Most of the commercial wireless network operators now adopt the cellular network architecture. The cellular network architecture has the characteristics of high spectrum utilization, strong adaptability, and good scalability. However, due to the structural characteristics of the cellular network itself, there are disadvantages of low useful signal strength and high interference power at the edge of the cell. Therefore, how to improve the network service quality at the cell edge is a hot issue in the current wireless communication development. [0003] The coordinated multi-point communication (Coordinated Multi-point, CoMP) technology is a key technical point proposed by the 3GPP organization in the LT...
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IPC IPC(8): H04W28/18H04W72/04
CPCY02D30/70
Inventor 周文安解冰谭中一陈微
Owner BEIJING UNIV OF POSTS & TELECOMM