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Voice intercom method, intercom 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 power of eMTC terminal transmission, and affecting the quality of uplink coverage, etc., and achieve the goal of eliminating fragmentation, improving voice quality, and increasing average power Effect

Active Publication Date: 2021-06-29
CHINA TELECOM CORP LTD
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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, because 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

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  • Voice intercom method, intercom 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 present disclosure are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some 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 making creative efforts belong to the protection scope of the present disclosure.

[0026] The "first", "second" and so on 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 disclosu...

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Abstract

The present invention provides a voice intercom method, an intercom terminal and a communication system, wherein the method includes: when the first intercom terminal sends voice data to the second intercom terminal, judging whether the second intercom terminal has received If yes, the first intercom terminal will not send voice data to the second intercom terminal; if not, the first intercom terminal will send voice data and the first intercom terminal to the second intercom terminal. Voice channel occupation control command. The method, intercom terminal and communication system of the present invention can eliminate the fragmentation of voice data transmission on the air interface by setting the channel occupancy control right mechanism in the VoLTE intercom system realized by the LTE half-duplex system, thereby improving voice data The average power during transmission can improve the voice quality; the air interface voice channel can be used for uplink or downlink in a certain period of time, and the coverage of the half-duplex voice system can be enhanced.

Description

technical field [0001] The 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 a 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 used for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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