Method and device for feeding back channel information by scheduling terminal

A technology for feedback channel and feedback information, applied in the field of scheduling terminal feedback channel information

Active Publication Date: 2013-06-12
DATANG MOBILE COMM EQUIP CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method and device for scheduling terminal feedback channel information to solve the problem in the prior art that aperiodic feedback for the new CQI feedback structure is not realized

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 and device for feeding back channel information by scheduling terminal
  • Method and device for feeding back channel information by scheduling terminal
  • Method and device for feeding back channel information by scheduling terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0084] In order to further reduce the control signaling overhead of the physical layer, users can be grouped in advance, and a group of users can be jointly scheduled. A possible implementation method is as follows:

[0085] (1) The base station notifies the terminal of the following information in advance through user-specific high-level signaling

[0086] For the uplink resource allocation information and orthogonal spreading sequence related information used for feedback, the specific information organization format refers to the description in the first case, the difference is that all the indication information here is sent through high-level signaling, and whether the frequency hopping is indicated information and user group information. Among them, the user group information includes: which joint scheduling group the user belongs to, the RNTI information allocated by the base station for the joint scheduling group, and the relative position of the user's scheduling info...

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

A method and device for scheduling a terminal to feed back channel information enable feedback of information of non-periodic control channels when multiple users transmit Channel Quality Indicator (CQI) information. Said method is as follows: a base station sends to a terminal the set channel information feedback contents and feedback information format information; the base station sends to the terminal a scheduling instruction used for scheduling the terminal to feed back channel information, and when passing the scheduling instruction or before sending the scheduling instruction, the base station also sends to the terminal the uplink resource information, uplink demodulation pilot sequence cycle shift information and orthogonal sequence spread spectrum information which are used for instructing the terminal to feed back the channel information.

Description

Technical field [0001] The invention involves the field of communication technology, especially a method and device that dispatch terminal feedback channel information. Background technique [0002] In the third-generation mobile communication (3GPP) R8 standard (REL-8) long-term evolution system (LTE), the terminal (UE) needs to feed the channel quality information (CQI) through upward channel feedback channels (CQI).The base station (ENB) uses the CQI of UE feedback to perform dynamic scheduling.CQI can be transmitted on the uplink control channel (PUCCH), and can be transmitted on the uplink -sharing data channel (PUSCH).In 3GPP LTE, a resource block consists of 12 resource elements (RE).Each RE is 15kHz. [0003] figure 1 Explain the feedback method of CQI on PUCCH.Each sub -frame (1ms) consists of a series of OFDM symbols.Taking the length of normal CP (NORMAL CP) as an example, one subframe consists of two time slots (slot), and each time slot contains 7 OFDM symbols.On ea...

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 Patents(China)
IPC IPC(8): H04L27/26H04W72/12H04W92/10
CPCH04W36/0088
Inventor 潘学明沈祖康林亚男肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD
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