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

Soft switching method and terminal device

A technology of terminal equipment and soft handover, applied in the field of network communication, can solve the problems that uplink information cannot be demodulated in the target cell, cannot establish HSUPA link, cannot succeed in soft handover, etc., and achieves the effect of improving the success rate of soft handover

Active Publication Date: 2009-06-10
HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the uplink information transmitted by the terminal using the HARQ method of the original cell cannot be demodulated in the target cell
[0012] Due to the different capabilities of the two base stations, the uplink information transmitted by the terminal using the HARQ method of the original cell cannot be demodulated in the target cell. In this way, when the terminal only supports HSUPA services and performs soft handover between the two cells, it cannot be established in the target cell. True HSUPA link, unable to perform soft handover successfully

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
  • Soft switching method and terminal device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The present invention provides a variety of soft handover methods, which can be applied to different application scenarios, effectively avoid the phenomenon of soft handover failure in the prior art, and improve the success rate of soft handover.

[0054] The methods for implementing soft handover in different ways provided by the present invention will be described respectively below.

[0055] Method 1: Adjust the HARQ mode of the base station of the target cell and the HARQ mode of the base station of the original cell to the same HARQ mode.

[0056] First, before performing soft handover, the terminal determines that the HARQ mode of the target cell base station is different from the HARQ mode of the current cell base station, for example, the HARQ mode of the target cell base station is chase only, and the HARQ mode of the current cell base station is IR only. Here, the terminal may determine whether the HARQ mode of the base station of the target cell is different ...

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

In the invention, when terminal makes software switch, the terminal decides if the destination cell base station and the original cell base station use identical HARQ mode, and according to the physical circumstance of original cell base station and destination cell base station, uses different mode to realize the software switch process. The invention can be used in the both situations; one is the terminal can learn that the HARQ modes are different in the original cell base station and in the destination cell base station, and is capable of adjusting said HARQ modes to be consistent; another one is the terminal can't learn the HARQ modes of original cell base station and destination cell base station.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a soft handover method and terminal equipment. Background technique [0002] UMTS (Universal Mobile Telecommunications System) is a third-generation mobile communication system that adopts WCDMA (Wideband Code Division Multiple Access) air interface technology. UMTS is mainly developed in the WCDMA / GSM global standardization organization 3GPP. [0003] With the development of third-generation mobile communication technology, people's demand for mobile communication is no longer satisfied with voice services. Since the third-generation mobile communication system can provide services with higher data rates than the second-generation mobile communication system, therefore, A large number of multimedia services emerge, such as video telephony, picture uploading, high-speed Internet browsing and other services. In order to enhance uplink capacity and user uplink perfor...

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): H04W36/18H04L1/00
CPCH04W36/18
Inventor 尹丽燕
Owner HUAWEI TECH CO LTD
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