Method for selecting cooperative nodes in LTE-A system, base station and cooperative node

A technology of LTE-A and cooperative nodes, which is applied in the field of network communication to achieve the effect of low energy consumption and high data rate

Inactive Publication Date: 2011-06-22
BEIJING UNIV OF POSTS & TELECOMM
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for selecting a cooperative node in an LTE-A system, a base station and a cooperative node, so as to solve the problem of improving the spec...

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
  • Method for selecting cooperative nodes in LTE-A system, base station and cooperative node
  • Method for selecting cooperative nodes in LTE-A system, base station and cooperative node
  • Method for selecting cooperative nodes in LTE-A system, base station and cooperative node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The specific embodiments of the present invention will be described below with reference to the drawings in the specification. This specification mainly takes the application of the present invention in instant messaging services as the best embodiment. Of course, it can also be used in other Internet service systems such as network mail service systems, network collaborative work service systems, etc. in actual applications.

[0029] The technical solution of a method for selecting a cooperative node in an LTE-A system provided by the embodiment of the present invention is as follows: figure 1 Shown, including:

[0030] Step 11. Determine a set of candidate cooperative nodes according to the channel gains of the base station and the user equipment, the channel gains of the base station and the cooperative node, the channel gains of the cooperative node and the user equipment, and the received signal-to-noise ratio of the cooperative node.

[0031] Further, if the determined c...

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

The invention relates to a method for selecting cooperative nodes in an LTE-A system, a base station and cooperative nodes; the invention has the following the technical schemes: firstly, according to the channel gain of the base station and the user equipment, the channel gain of the base station and the cooperative nodes, the channel gain of the cooperative nodes and the user equipment, and the receiving signal-to-noise ratio of the cooperative nodes, determining a candidate cooperative node set; then, receiving a packet sent by the cooperative nodes of the first received candidate cooperative node set; finally, affirming the character ACK signal to the firstly received cooperative nodes of the packet, and selecting the corresponding cooperative nodes as the optimal cooperative nodes. Through the technical schemes in the embodiment of the invention, the emitting power of cooperative nodes is not increased while the cell-edge user obtains higher data rate, the energy consumption is few, and the average living time of the network cannot be influenced.

Description

Technical field [0001] The invention relates to a method for selecting a cooperative node in an LTE-A system, a base station and a cooperative node, and belongs to the technical field of network communication. Background technique [0002] The LTE-A (Long Term Evolution-Advance, Long Term Evolution) system uses orthogonal frequency division multiplexing (OFDM), that is, the high-rate data stream is divided into some low data streams and sent out through some orthogonal carriers. With the orthogonality between the cells, the intra-cell interference is effectively reduced, but the inter-cell interference cannot be reduced. COMP (Coordinated Multi-Point Transmission, Coordinated Multi-Point Transmission) is to use the principle of distributed antennas to reduce interference through the coordination of multiple base stations, thereby enhancing the spectral efficiency of data. COMP, as a key technology of LTE-A, can improve the system The average throughput and the performance of cel...

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
IPC IPC(8): H04W48/10H04W48/16H04L1/16
CPCY02B60/50Y02D30/70
Inventor 李曦毛旭陈丹李屹纪红王成金李希金
Owner BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap