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Voice talkback method, talkback terminal and communication system

An intercom terminal and voice intercom technology, applied in the field of communication, can solve the problems of poor call quality, low average transmit power of eMTC terminals, affecting uplink coverage quality, etc., to eliminate fragmentation, improve voice quality, and improve average power. Effect

Active Publication Date: 2019-05-21
CHINA TELECOM CORP LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

If half-duplex LTE is used to carry VoLTE, many time fragments will be formed during a certain period of the call, some time fragments are used for uplink voice data transmission, and some time fragments are used for downlink voice data transmission; In the environment, since not all time can be used for uplink voice data transmission, the average power transmitted by eMTC terminals is low, which affects the quality of uplink coverage; the same problem exists in downlink
Therefore, if half-duplex LTE is used to carry VoLTE, the call quality will be poor; if the half-duplex LTE VoLTE solution is applied to the walkie-talkie, the same problem will occur when both parties in the call seize the air interface channel at the same time

Method used

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  • Voice talkback method, talkback terminal and communication system
  • Voice talkback method, talkback terminal and communication system
  • Voice talkback method, talkback terminal and communication system

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Embodiment Construction

[0025] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are illustrated. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0026] The "first" and "second" in the following are only used to describe the difference, and have no other special meanings.

[0027] figure 1 It is a schematic flow chart of an embodiment of the voice intercom method according to the present disclosure, such as figure 1 S...

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Abstract

The invention provides a voice talkback method, an intercom terminal and a communication system. The method comprises the following steps of: When the first intercom terminal sends voice data to the second intercom terminal, judging whether a second voice channel occupation control command sent by the second intercom terminal is received or not, if yes, enabling the first intercom terminal not tosend voice data to the second intercom terminal, and if not, enabling the first intercom terminal to send the voice data and the first voice channel occupation control command to the second intercom terminal. According to the method, the talkback terminal and the communication system provided by the invention, fragmentization of voice data transmitted at an air interface can be eliminated by setting a channel occupation control right mechanism in a VoLTE talkback system realized through an LTE half-duplex system, so that the average power during voice data transmission is improved, and the voice quality is improved; The air interface voice channel can be used for uplink or downlink in a certain time period, and the coverage range of the half-duplex voice system is enhanced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a voice intercom method, an intercom terminal and a communication system. Background technique [0002] LTE (Long Term Evolution, long-term evolution) is the long-term evolution of the UMTS technical standard formulated by the 3GPP organization, and VoLTE (Voice over LTE) is a voice service with quality of service guarantee provided by the LTE network. For LTE half-duplex communication technology, it means that during the data transmission process of the air interface, a certain period of time can only be used for uplink data transmission, or only for downlink data transmission, and the conversion interval between uplink and downlink is about 10 milliseconds. . If half-duplex LTE is used to carry VoLTE, many time fragments will be formed during a certain period of the call, some time fragments are used for uplink voice data transmission, and some time fragments are...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 杜刚刘昱黄韬蔡凤恩熊尚坤王庆扬
Owner CHINA TELECOM CORP LTD
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