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

Cell selection method and device

A technology of cell selection and cell reselection, which is applied in the field of satellite communication and can solve the problems of no cell reselection or cell selection

Active Publication Date: 2020-10-09
DATANG MOBILE COMM EQUIP CO LTD
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no corresponding international specification for cell reselection or cell selection in satellite communication systems

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
  • Cell selection method and device
  • Cell selection method and device
  • Cell selection method and device

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0162] The relevant parameters of the cell where the terminal device currently resides meet the second preset condition, and the terminal device performs cell reselection measurement on candidate measurement frequency points to obtain a measurement result. The relevant parameters of the cell currently camped on may be the signal quality of the cell currently camped on, the elevation angle of the beam of the cell currently camped on, and the Doppler frequency shift of the beam of the cell currently camped on.

[0163] 1. The relevant parameter is the signal quality of the cell currently camped on

[0164] In this embodiment of the present application, priorities may be configured for candidate measurement frequency points, so that the terminal device can reselect to a high-priority cell to camp on. Wherein, different cells with the same carrier frequency have the same priority, and the priority information configured for the candidate measurement frequency point can be sent to ...

example 2

[0172] When the geographic location coordinates meet the second preset condition, the terminal device measures the candidate measurement frequency points to obtain a measurement result.

[0173] In this embodiment of the present application, the geographic location coordinates satisfying the second preset condition may be that the vertical distance between the geographic location coordinates and the cell boundary corresponding to the candidate measurement frequency point is less than the preset distance, and the geographic location coordinates and the candidate measurement frequency point When the vertical distance between the boundaries of the corresponding cells is less than the preset distance, it indicates that the terminal device will move to the boundary of the cell corresponding to the candidate measurement frequency point, and at this time, it is necessary to perform cell reselection measurement.

[0174] In this embodiment of the present application, the first preset s...

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 provides a cell selection method and device, which are used for reducing resource waste. The cell selection method comprises the following steps that terminal equipment determines candidate measurement frequency points according to geographic position information, star orbit graph information and a corresponding relationship between the star orbit graph information and a satellite use frequency band, the geographic position information is used for indicating a current geographic position coordinate of the terminal equipment, and the star orbit graph information comprises orbit operation data information of a satellite in a service area where the terminal equipment is located and / or identification information of the satellite; the terminal equipment measures the candidate measurement frequency points to obtain a measurement result; and if the measurement result meets a first preset condition, the terminal equipment selects or reselects a target cell capable of meeting thefirst preset condition.

Description

technical field [0001] The present application relates to the field of satellite communication, in particular to a cell selection method and equipment. Background technique [0002] The satellite communication system uses satellites as relay stations to forward microwave signals and communicate between multiple ground stations. The main purpose of satellite communication is to achieve "seamless" coverage of the ground. [0003] The most commonly used satellite communication system is the geostationary satellite communication system, which uses satellites positioned in geosynchronous orbits for communication. Generally, 3 geostationary satellites can basically cover the earth. After the terminal equipment enters the coverage of a geosynchronous satellite , there is basically no need to consider cell handover or reselection. However, with the continuous development of satellite communication technology, the number of satellites is increasing, and the orbits used by satellites...

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): H04W36/24H04W36/30H04W36/32H04W24/08
CPCH04W36/24H04W24/08H04W36/322H04W36/304H04W84/06H04B7/18513H04B7/18541H04W48/16H04W48/20Y02D30/70H04W36/0094
Inventor 范江胜
Owner DATANG MOBILE COMM EQUIP 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