Method for reducing search time of trapping TD-SCDMA carrier

A TD-SCDMA, search time technology, applied in the field of reducing the search time used to capture TD-SCDMA carriers, to achieve the effects of high frequency band utilization, minimized channel reuse distance, and avoided interference

Inactive Publication Date: 2006-03-08
上海贝豪通讯电子有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide a method for reducing the search time used to capture TD-SCDMA carriers, mainly to solve the technical problems of channel fast access problems, and improve the quality of mobile communication services

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 reducing search time of trapping TD-SCDMA carrier
  • Method for reducing search time of trapping TD-SCDMA carrier
  • Method for reducing search time of trapping TD-SCDMA carrier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The method of the present invention selects a fast dynamic channel allocation scheme, so that no matter when the mobile phone is turned on or handed over, the pilot signal can be quickly captured, and the search time can be shortened as much as possible; channel resources are optimally configured through channel quality criteria and traffic parameters .

[0036]The core of fast DCA is channel search, allocation or re-allocation. When a new call occurs, the system first judges whether to approve the call access according to specific criteria. If the call is allowed to be accessed, the system will search and allocate the required channels for the new user according to the existing channel resource occupancy. channel. The allocation of channels adopts the method of sorting according to priority, which can make more effective use of channels, and the system adjusts the channels after the call is received. When handling handover calls, relay handover is adopted, using tech...

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

Dynamic channel allocation (DCA) is adopted in the indention. When new call arrives to system, as long as there is a one vacant channel, mobile control center allocates the channel to the call. After the call is ended, the channel is returned back to central storage area. The invention solves technique issue for quick accessing channel and raises quality of service of mobile communication. Features are: avoiding interference, minimized distance of reusing channel, using wireless resources in high efficiency and increasing system capacity.

Description

Technical field: [0001] The invention relates to a carrier signal search technology of a mobile communication system, in particular to a method for reducing the search time for capturing a TD-SCDMA carrier. Background technique: [0002] The TD-SCDMA system adopts a unique four-step search process: after the mobile phone is turned on, it first measures the carrier power within the frequency band of the TD-SCDMA system, sorts the measured power by strength, and starts searching from the strongest carrier. Initial cell selection or search is performed using Downlink Pilot Time Slot (DwPTS) and Broadcast Channel (BCH). In the initial cell search, the user end (UE) searches for a cell, establishes DwPTS synchronization, obtains scrambling codes, controls multiframe synchronization, and then reads BCH information. The UE reads the (full) broadcast information on one or more BCHs of the searched cell, and according to the read result, the UE can decide whether to go back to the a...

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 Applications(China)
IPC IPC(8): H04Q7/36H04Q7/38H04B1/707
Inventor 吴明欣
Owner 上海贝豪通讯电子有限公司
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