Method for optimizing beam forming matrix for multi-base station collaboration system

A beamforming matrix and cooperative system technology, applied in diversity/multi-antenna systems, space transmit diversity, preventing/detecting errors through diversity reception, etc., can solve problems such as considering cooperative processing methods and affecting system performance
CN101986574AInactive Publication Date: 2011-03-16SHANGHAI JIAO TONG UNIV
3 Cites 23 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2011-03-16
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for optimizing a beam forming matrix for a multi-base station collaboration system in the technical field of wireless communication. In the method, a distributed base station collaboration selection mode is adopted and a collaboration base station is selected at a client according channel state information and a related interference channel; a user can select whether to require the base station to be collaborated with an adjacent base station to carry out collaboration transmission and simultaneously selects a base station which causes larger interference to the user to carry out collaboration according to channel gain of the base station and interference channel gain; and the base station determines a finally selected collaborated mode in the principle of highest service quality according to feedback information so as to realize the balance of the service quality requirements between the users.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a method in the technical field of wireless communication, in particular to an optimization method for a beamforming matrix used in a multi-base station cooperative system. Background technique

[0002] Downlink multi-base station cooperation technology can effectively eliminate inter-cell interference, improve system fairness and increase system spectrum efficiency. However, there are two major problems in the realization of multi-cell cooperation technology: in order to realize the cooperation between base stations, the network background needs a large backhaul capacity to complete the information exchange between base stations; The degree of channel state information is also an important factor affecting system performance. Therefore, how to effectively design the beamforming matrix to reduce inter-cell interference and improve system capacity is one of the main research topics in the current multi-cell cooperative ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More