Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

System and method for realizing downlink HARQ (hybrid automatic repeat request)

A technology for implementing systems and processes, applied in the field of TD-LTE, to achieve the effect of ensuring reliability and timeliness

Active Publication Date: 2011-08-10
BEIJING STARPOINT TECH COMPANY
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. The TD-LTE system adopts the "stop-wait" HARQ technology. For each HARQ process, there will be a waiting time for a reply

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
  • System and method for realizing downlink HARQ (hybrid automatic repeat request)
  • System and method for realizing downlink HARQ (hybrid automatic repeat request)
  • System and method for realizing downlink HARQ (hybrid automatic repeat request)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] figure 1 It is a module structure diagram of the downlink HARQ implementation system according to the embodiment of the present invention. Such as figure 1 As shown, the downlink HARQ implementation system includes: a scheduling module 100, a state machine maintenance module 200 and a reply processing module 300;

[0045] The state machine maintenance module 200 is used to maintain the state machine 201, and the state machine 201 is used to store the structural units of the HARQ process and the HARQ process;

[0046] The scheduling module 100 is configured to make decisions based on information stored in the state machine 201, and schedule other modules of the sy...

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 discloses a system and method for realizing downlink HARQ (hybrid automatic repeat request), relating to the technical field of TD-LTE (TD-SCDMA long term evolution). The system comprises a dispatching module, a state machine maintenance module and a reply handling module, wherein the state machine maintenance module is used for maintaining a state machine, the state machine is usedfor storing an HARQ process and a structural unit of the HARQ process; the dispatching module is used for making a decision according to information stored by the state machine, dispatching other modules of the system to realize according functions and selecting the HARQ process to send the HARQ data; and the reply handling module is used for handling according to feedback information of the sentHARQ data. By adopting the system and method for realizing the downlink HARQ disclosed by the invention, a state linked list in the state machine is stored with different states of the HARQ process, and the reliability and timeliness of downlink HARQ data transmission in a TD-LTE system can be effectively guaranteed.

Description

technical field [0001] The present invention relates to the technical field of TD-LTE (Time Division-Long Term Evolution), in particular to a downlink HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) implementation system and method. Background technique [0002] With the commercialization of my country's TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) mobile communication system, people have higher requirements for the highest data transmission rate of 2Mbit / s in 3G mobile communication. To this end, 3GPP, 3GPP2 and other standardization organizations successively proposed HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access), LTE (Long Term Evolution) and other follow-up standard. The LTE standard defines frequency division duplex (FDD) and time division duplex (TDD) in two ways. Among them, TD-LTE has become an inevitable tren...

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): H04L1/18H04W72/12
Inventor 蒲翰唐恬崔清赵璨张治姜军
Owner BEIJING STARPOINT TECH COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com