Method and device for allocating physical resource blocks

Abstract

The invention relates to the technical field of wireless communication, in particular to a method and a device for allocating physical resource blocks. The device and the method are used to solve the problems of increase in an error block rate of data at a receiving terminal and reduction in the resource utilization rate and user capacity of the communication system of a cell, which are caused by the high multi-access interference generated by the method for allocating the physical resource blocks in the prior art under the influence of a smart antenna. The method of the embodiment of the invention comprises: determining the region of a cell of a terminal according to the directional angle of an incoming wave of a terminal, wherein the region is one of the plurality of regions of cells; determining the physical resource block corresponding to the terminal according to a preset mapping relationship between region identifiers and physical resource blocks; and sending the parameters of the determined physical resource block to the terminal. The method of the embodiment of the invention can reduce multi-access interference in the same cell and the error block rate of the receiving terminal and improve the resource utilization rate and user capacity of the communication system.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for allocating physical resource blocks. Background technique [0002] In a VoIP (Voice over IP, IP-based voice call) service, the network side sends data to the terminal side through the code channel corresponding to the physical resource block. [0003] Currently, in the downlink transmission of VoIP services, a cell is generally configured with two time slots, such as figure 1 As shown, for example: there are 32 code channels in two time slots. At this time, there are 4 physical resource blocks A1, A2, B1 and B2 occupying 8 code channels in the physical resources, wherein A1 and A2 are in the same time slot; B1 and B2 are in the same time slot. [0004] In the FDD (Frequency division duplex, frequency division duplex) system and TDD (Time division duplex, time division duplex) system of the VoIP service, the network side will alloca...

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a method and device for allocating physical resource blocks, which are used to solve the problem that under the influence of smart antennas, the physical resource allocation method of the existing VoIP service will generate strong multiple access interference, thereby increasing data errors at the receiving end. block rate, thereby reducing resource utilization and user capacity of the cell communication system

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