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User position list-based method for selectively multiplexing multiple honeycomb user resources for device to device (D2D) user pairs

A technology for cellular users and users, applied in network traffic/resource management, electrical components, wireless communication, etc., can solve problems such as interference at the receiving end of cellular links, reduce complexity, reduce interference, and improve overall data rate and spectrum efficiency effect

Active Publication Date: 2011-06-08
BEIJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

If D2D communication is allocated to non-orthogonal channel resources, D2D communication will cause interference to the receiver in the cellular link

Method used

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  • User position list-based method for selectively multiplexing multiple honeycomb user resources for device to device (D2D) user pairs
  • User position list-based method for selectively multiplexing multiple honeycomb user resources for device to device (D2D) user pairs
  • User position list-based method for selectively multiplexing multiple honeycomb user resources for device to device (D2D) user pairs

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Embodiment Construction

[0021] For ease of understanding, the present invention takes a D2D communication network under the LTE-A system as an example to illustrate that D2D technology is applied to a cellular network, and the base station determines the cellular network users who share resources for D2D user pairs through a positioning method. Suppose the system has a bandwidth of 10MHz and works at 2GHz. Suppose there are 10 cellular users in the system, U 1 , U 2 ,...,U 10 ; There are two pairs of D2D users, (D 1 ,D 2 ) and (D 3 ,D 4 ). Here, the number of cellular users and the number of D2D user pairs may be different. The present invention is generally applicable to all network structure models having the basic features in this example. These D2D users can directly communicate under the coordination of the base station, and the D2D user pairs share network resources with the macro cell communication during communication.

[0022] The specific process of determining the resource sharing...

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Abstract

The technical scheme provided by the invention is applied to a honeycomb network of mobile communication. A device to device (D2D) technology is applied to the honeycomb network, so that D2D user pairs are allowed to multiplex the resources of honeycomb network users for communicating. The invention provides a user position list-based method for selectively multiplexing multiple honeycomb user resources for the D2D user pairs, which is used for selecting a plurality of honeycomb users farthest from the D2D user pairs for each pair of D2D users for resource multiplexing. By using the scheme provided by the invention, the complexity of an algorithm is lowered when a base station end selects a plurality of honeycomb users for resource multiplexing, and the interference between the resource multiplexing D2D user pairs and the honeycomb users is reduced to the maximum extent, so that the spectrum efficiency of an entire system is improved. Moreover, the method has high practical operability, is easy to implement in practice, and is applied more flexibly.

Description

technical field [0001] The present invention applies end-to-end (Device-to-Device, D2D) technology to a cellular network, and D2D users communicate with resources of users in the multiplexed cellular network. Or other communication networks that have similar architectural characteristics to the application of the D2D technology in the cellular network. The present invention proposes a D2D user pair selection and multiplexing of multiple cellular user resources based on the user location list, which can improve the spectrum efficiency of the overall system (including cellular communication and D2D communication), and reduce the selection and multiplexing of D2D users by the base station. The complexity of the resource's user algorithm. The method proposed by the invention has strong practical operability. Background technique [0002] Device-to-Device (D2D) communication is a new type of technology that allows terminals to communicate directly by reusing resources in a cell...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W72/04H04W72/12
Inventor 陈力王彬陈晓航张欣常永宇杨大成
Owner BEIJING UNIV OF POSTS & TELECOMM
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