D2D resource allocation method and device for densely distributed user groups in cellular system

A technology for cellular user and resource allocation, applied in machine-to-machine/machine-type communication services, electrical components, wireless communication, etc., can solve problems such as shortage of spectrum resources, ensure user experience, solve the shortage of spectrum resources, and improve spectrum The effect of utilization
CN110839227BActive Publication Date: 2022-05-10CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING UNIV OF POSTS & TELECOMM
Publication Date
2022-05-10

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Abstract

The present invention belongs to the field of communication technology, and specifically relates to a D2D resource allocation method and device for densely distributed user groups in a cellular system. and the distribution of cellular users; construct user groups according to the distribution in the region; determine the corresponding reusable cellular user resource set based on the divided user groups; limit the distance and cross-layer interference between D2D users and cellular users; Select appropriate cellular user resources for resource pre-allocation; based on the limitation of cross-layer interference and the impact of common-layer interference, the hybrid leapfrog algorithm is used to further adjust the situation of D2D users in each user group to multiplex cellular user resources. In the case of interference, multiple iterations are performed to maximize system throughput; when allocating resources, the present invention fully considers the QoS requirement of each UE, and can guarantee user experience.
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Description

technical field

[0001] The invention belongs to the technical field of mobile communication, and in particular relates to a device-to-device (D2D) resource allocation method and device for densely distributed user groups in a cellular system. Background technique

[0002] In today's global mobile Internet, various smart terminals have sprung up like mushrooms. While they are convenient for people's daily life, they also bring a surge in business demand. Massive mobile communication data makes the originally limited spectrum resources more and more complex. more nervous. In order to effectively improve the spectrum utilization rate of the cellular network and alleviate the shortage of spectrum resources, D2D technology is proposed as a key technology in the 3GPP R12 protocol. D2D communication refers to the communication between mobile user equipment (User Equipment, UE) in the physical location, the data is no longer forwarded by the base station, but directly establishes a...

Claims

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