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A time-frequency adjustment method and device

An adjustment method and time-frequency technology, applied in the field of communication, can solve the problems affecting the user's voice perception, voice packet loss, etc.

Active Publication Date: 2021-03-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a time-frequency adjustment method and device to solve the problem in the prior art that voice packets are lost due to control messages carrying adjustment information preempting dedicated service channel resources, thereby affecting user voice perception

Method used

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.

[0039] In the satellite mobile communication system, due to the large coverage of the cell, the number of users who need to be served in the cell is large, and the wireless resources are very limited. In order to effectively improve the utilization rate of radio resources of the system, a method of sharing radio resources by different logical channels is usually adopted. For example, the DTCH channel and the DACCH channel share the same frequen...

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Abstract

The invention discloses a time frequency adjustment method and device. The method comprises acquiring time frequency offset information of a terminal, judging whether time-frequency adjustment needs to be carried out on the terminal or not according to the time frequency offset information, and when it is determined that time-frequency adjustment needs to be carried out on the terminal, carrying out time-frequency adjustment on the terminal by using a logic channel which can be subjected to frequency division multiplexing with the special service channel, so that the special service channel and the logic channel can transmit data at the same time, loss of data packets is reduced, and customer voice perception is improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a time-frequency adjustment method and device. Background technique [0002] In the satellite mobile communication system, when the terminal sends uplink data to the base station, it usually reports the time-frequency and frequency offset information of the terminal. If the network side finds that the time-frequency and frequency offset information of the terminal reaches the preset threshold value, the The terminal is required to adjust the time offset information and frequency offset information. [0003] At present, when adjusting the time offset information and frequency offset information of the terminal, a dedicated associated control channel (Dedicated Associated Control Channel, DACCH) is usually used to transmit a control message carrying the adjustment information. Since the DACCH channel and the dedicated traffic channel ( Dedicated Traffic Channel, D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/382H04L27/00H04W24/08H04W72/04H04L5/00
CPCH04L5/0053H04L27/0014H04L2027/0026H04W24/08H04W72/0446H04B17/382
Inventor 田华
Owner DATANG MOBILE COMM EQUIP CO LTD
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