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Sending and receiving methods and devices for uplink tracking signal

A sending method and signal technology, applied in the field of communication, can solve the problems of UE tracking and the inability to accurately determine the current location of the UE, and achieve the effects of reducing energy consumption and saving time-frequency resources

Inactive Publication Date: 2018-04-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in the LTE system, the network side cannot actively track the UE, and the UE can only report its own location. When the TA setting is too large, the network side cannot accurately determine the current location of the UE.

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  • Sending and receiving methods and devices for uplink tracking signal
  • Sending and receiving methods and devices for uplink tracking signal
  • Sending and receiving methods and devices for uplink tracking signal

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] The method of the embodiment of the present invention can be applied in Global System of Mobile communication (GSM for short) system, Code Division Multiple Access (Code Division Multiple Access, CDMA for short) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA for short) system, Long Term Ev...

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Abstract

The embodiment of the invention provides sending and receiving methods and devices for an uplink tracking signal. The sending method for the uplink tracking signal comprises the steps as follows: whenuser equipment (UE) in a connected state does not have data transmission within detection time, the UE stops sending a sounding reference signal (SRS) and is changed to send the uplink tracking signal, so that a network side tracks the position of the UE according to the uplink tracking signal, and thus network side equipment can accurately determine the position of the UE according to the uplinktracking signal; furthermore, the bandwidth occupied by the uplink tracking signal is less than that occupied by the SRS, so that time frequency resources occupied to send the uplink tracking signalis saved, and the energy consumption of the UE can be reduced.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a method and device for sending and receiving uplink tracking signals. Background technique [0002] In a Long Term Evolution (LTE for short) system, the network side needs to perform mobility management on user equipment (User Equipment, UE for short). An important process of mobility management is tracking area (Tracking Area, abbreviated) update. TA is defined as a free movement area where UE does not need to update services. The purpose of TA update is for UE to inform the network of its own location. The TA update is triggered by the UE. When the UE detects that the TA identity of the cell where it resides has changed and is not in the tracking area list, the UE will initiate the TA update process and notify the network side that it has entered a new TA. It can be seen that in the LTE system, the network side cannot actively track the UE, and the UE ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W72/12
CPCH04W64/003H04W72/1268Y02D30/70
Inventor 刘亚林耿婷婷
Owner HUAWEI TECH CO LTD
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