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

A control method, system and device for high-speed downlink packet access transmission

A technology of transmission control and control method, applied in the field of mobile communication, can solve the problems of redundancy and waste of resources, and achieve the effect of eliminating redundancy and reducing transmission power

Inactive Publication Date: 2008-06-04
HUAWEI TECH CO LTD
View PDF0 Cites 38 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Due to the characteristics of HSDPA transmission in the CELL_FACH state, some transmission control information on the HS-SCCH that is currently applicable to HSDPA in the CELL_DCH state may no longer be used in HSDPA transmission in the CELL_FACH state, so it is currently applicable to the CELL_DCH state When the HS-SCCH is used for HSDPA transmission in the CELL_FACH state, there is obvious redundancy, resulting in waste of resources

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
  • A control method, system and device for high-speed downlink packet access transmission
  • A control method, system and device for high-speed downlink packet access transmission
  • A control method, system and device for high-speed downlink packet access transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1: remove redundant transmission control information, and then encode.

[0065] see image 3 , image 3 It is a flowchart of a method for controlling high-speed downlink packet access transmission in Embodiment 1 of the present invention. The process includes the following steps:

[0066] Step 301, Node B removes redundant transmission control information in HS-SCCH.

[0067] In this embodiment, 1 bit of coding scheme information can be removed; and if it is assumed that in the CELL_FACH state, HARQ is realized by simply repeating the same data for a certain number of times, then 3 bits of HARQ process information can also be removed , 3 bits of redundancy version and constellation map version information and 1 bit of new data indication.

[0068] In addition, according to the characteristics of data transmission in the CELL_FACH state, in this embodiment, 1-6 bits of channel code set information and 1-5 bits of transport block size information are reserv...

Embodiment 2

[0109] Embodiment 2: Remove redundant transmission control information, add new transmission control information, and then encode.

[0110] see Figure 9 , Figure 9 It is a flowchart of a control method for high-speed downlink packet access transmission in Embodiment 2 of the present invention. The process includes the following steps:

[0111] Step 901, Node B removes redundant transmission control information in HS-SCCH.

[0112] In this step, the redundant transmission control information in the removed HS-SCCH can be compared with image 3 The redundant control information removed in the flow shown is the same or different.

[0113] In order to carry out comparative description, in this embodiment with image 3 The redundant control information removed in the flow shown is the same as an example, that is, the coding scheme information of 1 bit is also removed; and it is also assumed that in the CELL_FACH state, HARQ is realized by simply repeating the same data for a...

Embodiment 3

[0168] Embodiment 3: remove all transmission control information except H-RNTI, add new transmission control information, and then encode.

[0169] see Figure 14 , Figure 14 It is a flowchart of a control method for high-speed downlink packet access transmission in Embodiment 3 of the present invention. The process includes the following steps:

[0170] Step 1401, Node B removes all transmission control information except H-RNTI.

[0171] When HARQ is implemented by simply repeating the same data for a certain number of times in the CELL_FACH state, a certain HS-SCCH channel indicates (k+1)·(N-1) after the corresponding UE receives the first HS-PDSCH data TTI, the Node B may no longer transmit the transmission control information of the HS-PDSCH of the corresponding UE on the HS-SCCH channel, wherein there are k TTIs between adjacent two repeated transmissions. However, the Node B can still send new transmission control information of the corresponding UE during this per...

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 method for controlling the high-speed downlink packet access transmission, which comprises the steps that: a base station node (Node B) removes the redundancy transmission control information in a high-speed sharing control channel (HS-SCCH); Node B codes the transmission control information needing to be transmitted in the HS-SCCH and sends the transmission control information after being coded to a user equipment (UE) through the HS-SCCH; UE applies the receiving operation to the transmission of the high-speed downlink packet access (HSDPA) according to the transmission control information in the HS-SCCH. In addition, the invention also discloses a control system and a device for downlink packet access transmission and can eliminate the redundancy on the HS-SCCH.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a high-speed downlink packet access (HSDPA) transmission control method, system and device. Background technique [0002] In the mobile communication system, the High Speed ​​Downlink Packet Access (HSDPA) technology is because of its adaptive modulation and coding (AMC), hybrid automatic repeat request (HARQ), fast packet scheduling (FPS) of the base station node (Node B), etc. The key technology realizes high-speed data transmission on the downlink, and thus has been widely used. For the air interface (Uu) for communication between the network side and the user equipment (UE), HSDPA-related protocols mainly involve the physical layer, medium access control (MAC) layer and corresponding radio resource control (RRC) Floor. Among them, the RRC layer includes two basic working modes of idle mode and connected mode, wherein the connected mode further includes cell dedicat...

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): H04B7/26H04Q7/38H04L1/18H04Q7/30H04Q7/32
Inventor 刘晟
Owner HUAWEI TECH CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com