CN111243610A - Method for realizing intercommunication of different vocoder and mobile stations in digital intercommunication system - Google Patents
Method for realizing intercommunication of different vocoder and mobile stations in digital intercommunication system Download PDFInfo
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- CN111243610A CN111243610A CN202010059563.3A CN202010059563A CN111243610A CN 111243610 A CN111243610 A CN 111243610A CN 202010059563 A CN202010059563 A CN 202010059563A CN 111243610 A CN111243610 A CN 111243610A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012546 transfer Methods 0.000 claims abstract description 20
- 238000005070 sampling Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
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Abstract
A method for realizing intercommunication of different vocoder mobile stations in digital intercommunication system relates to the mobile station technical field, a first mobile station using vocoder A is fixedly configured on a first time slot, a second mobile station using vocoder B is fixedly configured on a second time slot; in a transfer mode, when the transfer platform receives an uplink service from the first mobile station in a first time slot, the transfer platform stores the received compressed voice data of the vocoder A and decodes the compressed voice data according to the vocoder A to restore the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through a vocoder B to form compressed voice data of the vocoder B; the relay station transmits the stored compressed voice data of the vocoder A to other first stations in a first time slot, and transmits the newly generated compressed voice data of the vocoder B to a second station in a second time slot. Therefore, the invention can realize the voice intercommunication between the mobile stations of different vocoders through the transfer platform without modifying the software and the hardware of the mobile stations.
Description
Technical Field
The invention relates to the technical field of mobile stations, in particular to a method for realizing intercommunication of mobile stations of different vocoders in a digital intercommunication system.
Background
The vocoder is a coder and decoder for analyzing and synthesizing voice, also called voice analyzing and synthesizing system or voice band compressing system, and is a powerful tool for compressing communication band and making secret communication. The vocoder analyzes the voice signal at the transmitting end, extracts the characteristic parameters of the voice signal, encodes and encrypts the characteristic parameters to obtain the matching with the channel, transmits the characteristic parameters to the receiving end through the information channel, and recovers the original voice waveform according to the received characteristic parameters.
Currently in digital intercom systems, there are various types of vocoders, such as: AMBE vocoder used by DMR, Qinghua ASELP vocoder and NVOC vocoder used by PDT. When the mobile stations (i.e. the interphones) provided with different types of vocoders call each other, only the creation of a service link can be completed, but the voice of the opposite party cannot be heard. This situation causes great inconvenience to the application and network planning of the digital mobile station, and seriously hinders the popularization and the generalization of the digital intercom system.
Disclosure of Invention
The invention provides a method for realizing intercommunication of different vocoder mobile stations for a digital intercommunication system, which aims to overcome the problems in the prior art.
The technical scheme adopted by the invention is as follows:
a method for realizing intercommunication of different vocoder mobile stations in a digital intercommunication system is as follows: a first time slot and a second time slot are designed in a time division multiplexing double-time slot digital intercom system, and the intercom system comprises a transfer platform, a plurality of first mobile stations using a vocoder A and a plurality of second mobile stations using a vocoder B;
fixedly configuring a first station using a vocoder A on a first time slot, and fixedly configuring a second station using a vocoder B on a second time slot;
in a transfer mode, when the transfer platform receives an uplink service from the first mobile station in a first time slot, the transfer platform decodes the received compressed voice data of the vocoder A according to the vocoder A and restores the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through a vocoder B to form compressed voice data of the vocoder B; the relay station transmits the newly generated compressed voice data of vocoder B to the second station over the second time slot.
Further, the relay station saves the received compressed voice data of the vocoder a and then transmits the saved compressed voice data of the vocoder a to the other first stations over the first time slot.
Further, in the relay mode, the receiving channel and the sending channel of the relay station are at different carrier frequency points.
Further, in the transit mode, when the transit station receives the uplink service from the second subscriber station in the second time slot, the transit station decodes the received compressed voice data of the vocoder B according to the vocoder B, and restores the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through the vocoder A to form the compressed voice data of the vocoder A; the relay station transmits the newly generated compressed voice data of vocoder a to the first station over the first time slot.
Further, the relay station saves the received compressed voice data of the vocoder B and then transmits the saved compressed voice data of the vocoder B to the other second stations on the second slot.
Compared with the prior art, the invention has the advantages that:
in the invention, a first mobile station using a vocoder A is fixedly arranged on a first time slot, and a second mobile station using a vocoder B is fixedly arranged on a second time slot; in a transfer mode, when the transfer platform receives an uplink service from the first mobile station in a first time slot, the transfer platform decodes the received compressed voice data of the vocoder A according to the vocoder A and restores the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through a vocoder B to form compressed voice data of the vocoder B; the relay station transmits the newly generated compressed voice data of vocoder B to the second station over the second time slot. Therefore, the invention can conveniently realize the voice intercommunication among different vocoder mobile stations through the transfer platform without modifying software and hardware of the mobile stations.
Drawings
Fig. 1 is a schematic view of a working state of an intercom system in the present invention.
Fig. 2 is a schematic diagram of a second operating state of the intercom system in the present invention.
Fig. 3 is a third schematic view of the working state of the intercom system in the present invention.
Fig. 4 is a schematic diagram of the working state of the intercom system in the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings. Numerous details are set forth below in order to provide a thorough understanding of the present invention, but it will be apparent to those skilled in the art that the present invention may be practiced without these details.
A method for realizing intercommunication of different vocoder mobile stations in a digital intercommunication system is as follows:
as shown in fig. 1, the present invention uses a time division multiplexing dual-slot digital intercom system consisting of a transit station, a plurality of first stations using a vocoder a, and a plurality of second stations using a vocoder B, which is suitable for a time division multiplexing dual-slot digital intercom protocol, such as: DMR, PDT, etc. A first time slot and a second time slot are designed in the interphone system.
As shown in fig. 1, a first station using vocoder a is fixedly disposed in a first time slot, and a second station using vocoder B is fixedly disposed in a second time slot. Thus, the first handset will only receive and transmit traffic on the first time slot and will not occupy the second time slot. Similarly, the second subscriber station will only receive and transmit traffic on the second time slot and will not occupy the first time slot.
As shown in fig. 2, in the relay mode, the receiving channel and the transmitting channel of the relay station are at different carrier frequency points, for example, the uplink frequency point (i.e., the receiving channel) of the relay station is configured to be y MHz, the downlink frequency point (i.e., the transmitting channel) is configured to be x MHz, and x is not equal to y.
As shown in fig. 3, when the transit station receives the uplink traffic from the first station at the first time slot, the transit station saves the received compressed voice data of vocoder a; then, the compressed voice data is decoded according to the vocoder A, and the original voice data with the sampling rate of 8KHz is restored; then, the original voice data is coded through a vocoder B to form compressed voice data of the vocoder B; the relay station transmits the stored compressed voice data of the vocoder a to the other first stations over the first time slot, and transmits the newly generated compressed voice data of the vocoder B to the second stations over the second time slot.
Thus, the first station using vocoder a receives the voice signal in the first time slot as the voice data compressed by vocoder a, and the second station using vocoder B receives the voice signal in the second time slot as the voice data compressed by vocoder B, thereby enabling the first station using vocoder a to simultaneously call the other first station using vocoder a and the second station using vocoder B.
As shown in fig. 4, when the transit station receives the uplink traffic from the second station at the second time slot, the transit station saves the received compressed voice data of the vocoder B; then, the compressed voice data is decoded according to a vocoder B and is restored into original voice data with 8KHz sampling rate; then, the original voice data is coded through the vocoder A to form the compressed voice data of the vocoder A; the relay station transmits the stored compressed voice data of the vocoder B to the other second stations over the second time slot, and transmits the newly generated compressed voice data of the vocoder a to the first station over the first time slot.
Thus, the second station using vocoder B receives the voice signal in the second time slot as the voice data compressed by vocoder B, and the first station using vocoder a receives the voice signal in the first time slot as the voice data compressed by vocoder a, thereby enabling the second station using vocoder B to simultaneously call the other second station using vocoder B and the first station using vocoder a.
In conclusion, the invention can conveniently realize the voice intercommunication among the mobile stations of different vocoders through the transfer station without modifying software and hardware of the mobile stations.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (5)
1. A method for realizing intercommunication of different vocoder mobile stations in a digital intercommunication system is characterized by comprising the following steps:
a first time slot and a second time slot are designed in a time division multiplexing double-time slot digital intercom system, and the intercom system comprises a transfer platform, a plurality of first mobile stations using a vocoder A and a plurality of second mobile stations using a vocoder B;
fixedly configuring a first station using a vocoder A on a first time slot, and fixedly configuring a second station using a vocoder B on a second time slot;
in a transfer mode, when the transfer platform receives an uplink service from the first mobile station in a first time slot, the transfer platform decodes the received compressed voice data of the vocoder A according to the vocoder A and restores the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through a vocoder B to form compressed voice data of the vocoder B; the relay station transmits the newly generated compressed voice data of vocoder B to the second station over the second time slot.
2. The method of claim 1, wherein the digital intercom system implements intercommunication between different vocoder stations, and wherein: the relay station saves the received compressed voice data of the vocoder a and then transmits the saved compressed voice data of the vocoder a to the other first stations over the first time slot.
3. The method of claim 1, wherein the digital intercom system implements intercommunication between different vocoder stations, and wherein: in the relay mode, a receiving channel and a sending channel of the relay station are at different carrier frequency points.
4. The method of claim 1, wherein the digital intercom system implements intercommunication between different vocoder stations, and wherein: in the transfer mode, when the transfer platform receives the uplink service from the second subscriber station on the second time slot, the transfer platform decodes the received compressed voice data of the vocoder B according to the vocoder B and restores the compressed voice data into original voice data with the sampling rate of 8 KHz; then, the original voice data is coded through the vocoder A to form the compressed voice data of the vocoder A; the relay station transmits the newly generated compressed voice data of vocoder a to the first station over the first time slot.
5. The method of claim 4, wherein the digital intercom system comprises a vocoder for communicating between the different vocoders, wherein: the relay station saves the received compressed voice data of the vocoder B and then transmits the saved compressed voice data of the vocoder B to the other second stations on the second time slot.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233686A (en) * | 2020-09-29 | 2021-01-15 | 天津联声软件开发有限公司 | Voice data processing method of NVOCPLUS high-speed broadband vocoder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020029142A1 (en) * | 2000-09-05 | 2002-03-07 | Yeon-Sang Koo | Vocoding method in all internet protocol (IP) network |
| CN1960239A (en) * | 2005-10-31 | 2007-05-09 | 华为技术有限公司 | Wireless transfer communication system based on TDM/TDMA FDD, and communication method |
| CN101615945A (en) * | 2009-07-21 | 2009-12-30 | 深圳市保利天同通讯设备有限公司 | Digital same-frequency transfer method and system based on time division multiple access |
| CN102158917A (en) * | 2010-02-03 | 2011-08-17 | 通用电气公司 | Handoffs between different voice encoder systems |
| CN108986828A (en) * | 2018-08-31 | 2018-12-11 | 北京中兴高达通信技术有限公司 | Call establishment method and device, storage medium, electronic device |
-
2020
- 2020-01-19 CN CN202010059563.3A patent/CN111243610A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020029142A1 (en) * | 2000-09-05 | 2002-03-07 | Yeon-Sang Koo | Vocoding method in all internet protocol (IP) network |
| CN1960239A (en) * | 2005-10-31 | 2007-05-09 | 华为技术有限公司 | Wireless transfer communication system based on TDM/TDMA FDD, and communication method |
| CN101615945A (en) * | 2009-07-21 | 2009-12-30 | 深圳市保利天同通讯设备有限公司 | Digital same-frequency transfer method and system based on time division multiple access |
| CN102158917A (en) * | 2010-02-03 | 2011-08-17 | 通用电气公司 | Handoffs between different voice encoder systems |
| CN108986828A (en) * | 2018-08-31 | 2018-12-11 | 北京中兴高达通信技术有限公司 | Call establishment method and device, storage medium, electronic device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112233686A (en) * | 2020-09-29 | 2021-01-15 | 天津联声软件开发有限公司 | Voice data processing method of NVOCPLUS high-speed broadband vocoder |
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