Unlock instant, AI-driven research and patent intelligence for your innovation.

Systems and methods for downlink scheduling in multiple input multiple output wireless communications systems

A channel coefficient and channel technology, applied in the field of downlink scheduling, can solve problems such as limiting the performance of MIMO systems

Inactive Publication Date: 2014-07-23
TRANSPACIFIC IP MAN GRP LTD
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the overhead introduced by CSIT feedback limits the performance of MIMO systems

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Systems and methods for downlink scheduling in multiple input multiple output wireless communications systems
  • Systems and methods for downlink scheduling in multiple input multiple output wireless communications systems
  • Systems and methods for downlink scheduling in multiple input multiple output wireless communications systems

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The disclosed subject matter will now be described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed subject matter. It may be evident, however, that the disclosed subject matter may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the disclosed subject matter.

[0025] As used in this application, the terms "component," "system," "platform," etc. may refer to a computer-related entity or an operating machine-related entity having one or more specified functions. The entities disclosed herein can be hardware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited t...

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

PUM

No PUM Login to View More

Abstract

Systems and methods for downlink scheduling in wireless communications systems are described. In some embodiments, a method includes: applying channel prediction at a transmitter for transmitting information to one or more mobile devices; predicting channel state information for a channel over which the information is transmitted, the channel state information being based, at least, on the channel prediction; determining a precoding matrix to apply to the information, the determining the precoding matrix being based, at least, on predicted channel state information; and scheduling transmission of the information to the one or more mobile devices based, at least, on an asymptotic ergodic rate for the one or more mobile devices. The asymptotic ergodic rate can be based on large-scale channel behavior and a maximum Doppler shift between the mobile devices.

Description

[0001] Cross-References and Claims to Priority to Related Applications [0002] This application is a non-provisional application of, and claims the benefit of, U.S. Provisional Patent Application No. 61 / 551,285, entitled "Downlink Scheduling in Network MIMO Using Two-Stage Channel State Feedback," filed October 25, 2011, by reference Said application is incorporated herein in its entirety. technical field [0003] The disclosed content relates generally to wireless communications, and more specifically, to downlink scheduling for wireless communications. Background technique [0004] The system's multiple-input multiple-output (MIMO) architecture can be employed to increase the throughput of broadband wireless networks. In traditional cellular networks, frequency reuse in adjacent cells can lead to inter-cell interference (ICI) and degrade performance. To overcome these problems, base station (BS) cooperation can be employed. For example, assuming a perfect backhaul conn...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04B7/0452H04B7/0417H04B7/0465H04B7/0626H04B7/063H04B7/065H04L25/0202H04L25/0242
Inventor 曾理铨A.F.哈尼夫黄经尧
Owner TRANSPACIFIC IP MAN GRP LTD