Method and device for resource pool division in direct communication

Abstract

The invention provides a method and device for dividing resource pools in direct communication. The method includes: dividing the entire bandwidth into multiple virtual subbands, and each UE occupies multiple virtual subbands; among the multiple virtual subbands occupied by one UE, the preset RB of the first virtual subband transmits the first Scheduling allocation control information; RBs of the remaining virtual subbands transmit data corresponding to the first scheduling allocation control information; wherein, each virtual subband includes multiple RBs; the first scheduling allocation control information and corresponding data are in the same subframe transmission, and the first scheduling allocates control information and corresponding data to be continuously distributed. Because the present invention fixes the SA on a specific RB for transmission, it avoids the problem of high implementation complexity at the receiving end caused by the existing resource pool division method in which the SA pool and the data pool are continuously distributed, and reduces the complexity of blindly solving the SA at the receiving end. .

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for dividing resource pools in direct communication. Background technique [0002] With the rapid growth of car ownership, road traffic safety has become one of the basic issues affecting people's livelihood. The Internet of Vehicles technology organically combines people, vehicles, roads and networks through direct communication between vehicles, greatly reducing traffic accidents. [0003] In vehicle direct communication, the distribution density of vehicles is relatively large, and the size of the transmission data packet is not fixed, requiring lower transmission delay and more stable transmission efficiency. Based on these factors, it is necessary to optimize the LTE vehicle direct communication A reasonable division of resource pools can effectively improve system performance. The resource pool is divided into an SA (scheduling assignment, schedu...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: the existing SA pool and the resource pool division method of continuous distribution of the data pool lead to the problem of high implementation complexity at the receiving end

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