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

Method and device for acquiring wireless channel parameter

A wireless channel and parameter technology, applied in wireless communication, advanced technology, electrical components, etc., can solve the problems of over-sensitivity to fast signal fading in the serving cell, increased UE power consumption, and reduced battery life, etc.

Active Publication Date: 2014-05-28
CHINA MOBILE GROUP JIANGSU
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the PCCPCH RSCP of the TDD serving cell is measured every DRX cycle, and every T measureNTDD Periodically measure the PCCPCH RSCP of TDD co-frequency adjacent cells, and the sampling samples are simply arithmetically averaged within the sampling period, making the measurement results too sensitive to the fast fading of the serving cell signal, for example, at the corner, due to the PCCPCH RSCP changes greatly, resulting in too many reselections from TDD to GSM, which increases the power consumption of the UE and reduces the battery life in the UE; further, if the frequency of reselection is too high, due to the reselection delay It will greatly deteriorate user perception, UE connection rate, and paging success rate; moreover, because the TDD serving cell and the same-frequency neighbor cell have different measurement cycles, it is not convenient to apply the same-frequency joint detection technology

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 acquiring wireless channel parameter
  • Method and device for acquiring wireless channel parameter
  • Method and device for acquiring wireless channel parameter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0108] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0109]In the embodiment of the present invention, considering that the reselection delay for performing cross-system reselection is generally 6 to 8 seconds, if the reselection frequency is too high, it will greatly affect the user's perception. In this way, the accuracy and accuracy of the measured PCCPCHRSCP Rationality is particularly important for the UE to select TD / GSM cells reasonably. If a reasonable sampling period is set so that the PCCPCH RSCP measured before and after tends to be smooth, the reselection frequency of the UE can be effectively reduced. Moreover, the actual operation shows that when the UE moves in the serving cell, there is a certain correlation between the PCCPCH RSCPs received before and after it. Therefore, th...

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 acquiring a wireless channel parameter. The method comprises the following steps of: presetting a sampling frequency and a sampling period which is used for measuring a serving cell and a same-frequency neighbor cell and reselecting a cell in the idle state; sampling a primary common control physical channel received signal code power (PCCPCH RSCP) signal which is received within the sampling period so as to acquire a sample; computing an average value of the acquired samples within the sampling period; and according to a preset smooth correlative time window algorithm strategy, calculating the wireless channel parameter. The invention also discloses a device for acquiring the wireless channel parameter. By the invention, reselecting switching frequency is reduced, power consumption of user equipment (UE) is reduced and a user experience is improved.

Description

technical field [0001] The invention relates to mobile communication measurement technology, in particular to a method and device for acquiring wireless channel parameters. Background technique [0002] In the current communication network, there are different types of mobile networks. When the user equipment (UE, UserEquipment) moves in different areas, according to the measured wireless channel parameters, when the pre-set conditions are met, it needs to start from one type of mobile network. Mobile network reselection or switching to another type of mobile network, for example, switching from an area covered by a Time Division (TD, Time Division) network into an area covered by a Global System for Mobile Communication (GSM, Global System for Mobile Communication) network, so that carry out normal communication. Therefore, it is more important to measure the wireless channel parameters of the serving cell where the UE is located and the same-frequency neighboring cells. ...

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): H04W24/00H04W24/10H04W36/26H04W36/30
CPCY02D30/70
Inventor 李俊顾鹏南仇勇董飞杨旭伟蒋自强徐锋张建许童赵振宇
Owner CHINA MOBILE GROUP JIANGSU
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