Method and device for allocating resource

Abstract

The present invention provides a method and a device for allocating resource. The method comprises: determining information of a second Physical Random Access Channel (PRACH) resource of at least one second cell adjacent to a first cell; and allocating a first PRACH resource for the first cell according to the information of the second PRACH resource, wherein the first PRACH resource and the second PRACH resource are staggered on time domain and / or frequency domain. According to the embodiment of the present invention, since the first PRACH resource allocated for the first cell and the second PRACH resource of the adjacent second cell are staggered on time domain and / or frequency domain, the same frequency interference on the first PRACH resource by the second PRACH resource can be reduced, the false alarm probability caused by the same frequency interference can be reduced, and thus the random access performance and the access success rate can be increased.

Description

technical field [0001] The present invention relates to the communication field, and in particular, to a resource allocation method and equipment. Background technique [0002] In a wireless communication system, a terminal needs to establish a connection with a network, and this process is generally called a random access (Random Access) process. During the random access process, the terminal needs to use the physical random access channel (Physical Random Access Channel, PRACH) resource of the cell to access the network. [0003] With the widespread use of smart terminals, there are more and more uplink access services, and the access load is also getting heavier. In the prior art, since the PRACHs of adjacent cells usually occupy the same resources in the time-frequency domain, when a terminal uses the PRACH resources of the serving cell to access the network, the PRACH resources of the adjacent cells become the PRACH resources of the serving cell. The main source of in...

AI Technical Summary

Problems solved by technology

In the prior art, since the PRACHs of adjacent cells usually occupy the same resources in the time-frequency domain, when a terminal uses the PRACH resources of the serving cell to access the network, the PRACH resources of the adjacent cells become the PRACH resources of the serving cell. The main source of interference, causing co-channel interference and false alarms, resulting in poor random access performance and lower access success rate

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