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Optimum transceiving combined processing method for communication among equipment in mobile communication network

A mobile communication network, inter-device communication technology, applied in the directions of space transmit diversity, baseband system components, diversity/multi-antenna systems, etc., can solve the problem of wireless mobile network user interference and other problems

Inactive Publication Date: 2015-04-01
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this solution is that it does not consider the interference of D2D transmitting users on wireless mobile network users

Method used

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  • Optimum transceiving combined processing method for communication among equipment in mobile communication network
  • Optimum transceiving combined processing method for communication among equipment in mobile communication network
  • Optimum transceiving combined processing method for communication among equipment in mobile communication network

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] Such as figure 1 Shown: the specific implementation steps of the present invention are as follows:

[0050] 1) D2D (Device-to-Device) sending user UE1 (User Equipment) and D2D receiving user UE2 have N 1 root transmit antenna and M 1 root receiving antennas, the base station has N 2 Root transmit antenna, network user UE3 owns M 2 Root receiving antenna. The transmit powers of the D2D transmitting user and the base station are respectively P 1 ,P 2 , they respectively send multi-stream data x 1 and x 2 (dimensions are S 1 ×1 and S 2 ×1) to the respective receivers. S 1 and S 2 respectively represent the number of data streams transmitted by the D2D link and the wireless mobile network link.

[0051] 2) The D2D link and the wireless mobile network link share time-frequency resources in a non-orthogonal manner, that is, the physical channel for commu...

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Abstract

The invention discloses an optimum transceiving combined processing method for communication among equipment in the mobile communication network. The optimum transceiving combined processing method includes that firstly, a base station in a time-division duplex communication system can equivalently acquire downlink channel information to UE 3 (user equipment 3) and downlink interference channel information to a D2D (device to device) receiving users by estimating an uplink channel; UE 1 can acquire transmission channel information to UE2 and interference channel information to the UE3 by the similar channel estimation method, and feed the same back to the base station; secondly, the base station computes precoding matrixes and receiving matrixes from the base station to the UE3 and the UE1 as well as from the base station to the UE2 as the minimized mean square error principle or maximized channel capacity principle according to the acquired four kinds of channel information; and finally, the base station sends the precoding matrixes and the receiving matrixes which are computed to notify the UE1, the UE2 and the UE3 via control channels.

Description

technical field [0001] The invention relates to an optimal transceiver joint processing method for communication between devices under a mobile communication network, and belongs to the design field of the transceiver joint processing method in multi-antenna interference channels. Background technique [0002] In recent years, with the further evolution and development of LTE-A, the integration of new mobile communication technologies such as heterogeneous networks and coordinated multipoint transmission (CoMP) into existing mobile networks has attracted widespread attention. Device-to-Device (D2D) communication is a new type of technology that allows direct communication between terminals with relatively close local distances. Under the control of the existing mobile communication system, the spectrum efficiency of the cellular communication system can be increased by multiplexing cell resources, the terminal transmission power can be reduced, and the problem of lack of spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04L25/02
Inventor 许威朱道华李朝峰雷鸣赵春明
Owner SOUTHEAST UNIV