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Uplink synchronization control method and device, and base station

A technology of synchronous control and base station, which is applied in the direction of synchronous devices, electrical components, wireless communication, etc., and can solve problems such as poor synchronization accuracy

Active Publication Date: 2015-05-20
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Embodiments of the present invention provide an uplink synchronization control method, device, and base station to solve problems such as poor synchronization accuracy in the prior art

Method used

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  • Uplink synchronization control method and device, and base station
  • Uplink synchronization control method and device, and base station
  • Uplink synchronization control method and device, and base station

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, it is a schematic diagram of the steps of the uplink synchronization control method in Embodiment 1 of the present invention, including the following steps:

[0040] Step 101: the base station receives the time slot signal sent by the UE.

[0041] Since a base station can belong to multiple UEs, the solution in Embodiment 1 of the present invention is a solution for any UE, and the base station can perform uplink synchronization control for each UE it belongs to according to the solution in Embodiment 1.

[0042] Step 102: the base station measures the RxTiming of the time slot signal.

[0043] In this step, the way the base station measures RxTiming is:

[0044] The base station presets the expected arrival time of the time slot signal locally, and measures the actual arrival time of the received time slot signal sent by the UE, and uses the difference between the actual arrival time and the expected arrival time as the value of RxTiming. ...

Embodiment 2

[0085] Based on the uplink synchronization control method described in the first embodiment, the second embodiment of the present invention takes the TD-SCDMA system as an example to describe in detail the uplink synchronization control method for the UE in the TD-SCDMA system. Such as figure 2 As shown, the method includes the following steps:

[0086] Step 201: The base station receives a time slot signal currently sent by an activated UE, and generates a measurement message, the measurement message including: the RxTiming of the time slot signal and the channel type identifier of the channel transmitting the time slot signal.

[0087] The measurement message may also include: Transport Format Combination Indicator (TFCI), Signal to Interference Ratio (Signal to Interference, SIR), Received Signal Code Power (Received Signal Code Power, RSCP), carrier identity, UE identity , and the number of the subframe that receives the signal of the time slot, etc.

[0088]Step 202: T...

Embodiment 3

[0109] Based on the uplink synchronization control method in Embodiment 1 and Embodiment 2, Embodiment 3 proposes an uplink synchronization control device, such as image 3 As shown, the device includes: a receiving module 31, a measuring module 32, an SS command generating module 33, an SS command sending module 34 and a time offset compensation generating module 35, wherein:

[0110] The time offset compensation generating module 35 is configured to determine and store at least one time offset compensation value according to an indicator carried in at least one synchronization offset SS command that has been sent to the terminal device, and the indicator is used to instruct the terminal device to adjust The mode of the time slot signal sending time; the receiving module 31 is used to receive the time slot signal sent by the terminal equipment; the measurement module 32 is used to measure the time offset value RxTiming of the arrival time of the time slot signal; the SS comman...

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Abstract

The invention discloses an uplink synchronization control method. The uplink synchronization control method comprises the following steps that: a base station receives a time slot signal which is sent by terminal equipment, and measures a time shift value RxTiming of the arrival time of the time slot signal; the base station determines a time shift compensation value which is stored by the terminal equipment; and the base station generates a synchronization shift (SS) command according to a sum of an accumulated value delta Temp of the time shift compensation value and the RxTiming, and sends the SS command to the terminal equipment. By the invention, the uplink synchronization control accuracy of the base station can be improved, uplink synchronization control over the terminal equipment is well realized, and the problem of low uplink synchronization control accuracy is solved. The invention also discloses an uplink synchronization control device and the base station.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to an uplink synchronization control method, device and base station. Background technique [0002] With the rapid increase in the number of mobile communication users and the continuous improvement of user needs, the requirements for mobile communication service quality are getting higher and higher. The improvement of service quality also brings challenges to synchronization control, that is, the convergence speed and control of synchronization control Accuracy requirements are also higher. Especially for time division duplex code division multiple access communication systems, such as TD-SCDMA system, the requirement for the accuracy of synchronization control is particularly obvious. [0003] Synchronization control refers to a process of controlling time slot signals of different terminal equipment (User Equipment, UE) in the same cell and in the same time slot to a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W88/08
Inventor 衷柳生张鼎卢俊波
Owner COMBA TELECOM SYST CHINA LTD
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