CN1783855A - General gate for supporting various terminal and communication method between gate and terminal - Google Patents
General gate for supporting various terminal and communication method between gate and terminal Download PDFInfo
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- CN1783855A CN1783855A CN 200410096158 CN200410096158A CN1783855A CN 1783855 A CN1783855 A CN 1783855A CN 200410096158 CN200410096158 CN 200410096158 CN 200410096158 A CN200410096158 A CN 200410096158A CN 1783855 A CN1783855 A CN 1783855A
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Abstract
This invention relates to a various terminals supported universal VoIP gateway and communication method between gateway and terminal. Said gateway includes share memory, network processor, external interface and digital signal processor, wherein the share memory for temporary storing speech data by which network processor and digital signal processor exchanging data, network processor for network accessing and routing and having plurality of interfaces by which realizing data communication between gateway and external part, digital signal processor converting speech coding/decoding mode. Said invention has advantages of supporting all current speech coding/decoding modes, simplifying terminal design and reducing terminal cost.
Description
Technical field
The present invention relates to gateway, specially refer to a kind of means of communication of supporting universal voip gateway and the gateway and the terminal room of multiple terminal.
Background technology
Encoding and decoding speech is the important foundation of ip voice communication, and current main code encoding/decoding mode has: G.711, G.721, G.728, G.723.1, G.729, G.726, CDMA QCELP, the regular-pulse excitation (RPE-LTP) of long-term forecast, EFR (EFR), adaptive multi-rate voice encoding and decoding modes such as (AMR).They have different code efficiencies, and the encoding and decoding speech that is used for distinct device habitually, as G.711, G.728, G.723, G.726, G.729 being usually used in the encoding and decoding speech of the networking telephone, CDMA QCELP is used for the cdma system based on IS-95, EFR is used for GSM standard 06.60, AMR is defined in the GSM06.90 system, and it also is the voice encoding and decoding mode of many third generation wireless telecommunication systems simultaneously.
Just fixing one or more code encoding/decoding modes supported wherein of the various communication apparatus of current realization maybe can fixedly be finished the conversion of encoding and decoding speech.So just network insertion and the interoperability between the equipment to terminal produced very big influence, merges mutually at current various communication apparatus, under the interpenetrative situation, and this influence is particularly important; Receive voice service such as mobile phone can only pass through GSM, GPRS, CDMA or other 3G mobile communication networks, support CDMA QCELP, GSM EFR, GSM AMR voice encoding and decoding mode; The current IP network is mainly fixing terminal voice service is provided, as voip phone on the ordinary meaning or wideband telephony, or the AP (Access Point) by WLAN provides voice service for a small amount of portable terminal, provide the ip voice service as WLAN mobile phone or bluetooth cellular phone, but G.711 their only support, G.721, G.728, G.723.1, G.726, voice encoding and decoding mode G.729, can not provide voice service for the portable terminal in the mobile communication network; Many companies have begun the voice service of wireless network and common wireless network is merged on portable terminal, make novel portable terminal both can be operated in wireless network, can work on the net at wireless local again.
But the voice encoding and decoding mode that existing gateway is supported is limited, can not support for some specific voice encoding and decoding mode existing gateway, for example: CDMA QCELP, GSM EFR, GSM AMR etc.And this will influence the scope of application that wireless network and WLAN (wireless local area network) is realized the portable terminal of dual access, and therefore the novel gateway that can provide a kind of and novel portable terminal to be used is provided.
In addition, because the restriction on the existing gateway function, the code encoding/decoding mode of existing VoIP system is end to end, promptly Tong Hua two terminals must be supported identical voice encoding and decoding mode, this VoIP that has just limited other voice coding modes terminal realizes, is unfavorable for realizing interconnecting between the various terminals.Provide a kind of and can realize that the universal gateway truly of VoIP access service is with a wide range of applications to the software terminal in common simulation phone, the wired and/or WLAN (wireless local area network), the special support of this universal gateway can realize the novel mobile telephone terminal of dual access in wireless network and WLAN (wireless local area network).
Summary of the invention
The objective of the invention is to overcome the voice encoding and decoding mode limited amount that existing gateway is supported, the necessary identical defective of the voice encoding and decoding mode of call terminal in the VoIP system at existing gateway place, a kind of universal voip gateway of supporting multiple terminal is provided, and this gateway is supported current all voice encoding and decoding modes; And the means of communication that a kind of gateway and terminal room are provided.
The invention provides a kind of universal voip gateway of supporting multiple terminal, realized the existing mutual conversion of all voice encoding and decoding modes is comprised: shared storage 1, network processing unit 2, external interface; It is characterized in that, also comprise digital signal processor 3; Shared storage 1 is articulated on data/address bus, address bus and the control bus shared of network processing unit 2 and digital signal processor 3, shared storage 1 is used for interim voice data, and network processing unit 2 and digital signal processor 3 carry out exchanges data by it; Network processing unit 2 is used to realize the access and the routing function of network, is connected with a plurality of interfaces above, by these interfaces, realizes gateway and outside data communication; Digital signal processor 3 is connected with network processing unit 2 data with shared processor 1.
In the technique scheme, described shared storage 1 also has the program of operation in network processing unit 2 and digital signal processor 3, and these programs are loaded into network processing unit 2 or digital signal processor 3 enterprising line operates from shared storage 1 in use.
In the technique scheme, the voice encoding and decoding mode conversion program is selected and loaded to described digital signal processor 3 according to original and voice encoding and decoding mode that will change from shared storage 1, realizes the conversion to various voice encoding and decoding modes.
In the technique scheme, the voice encoding and decoding mode when determining communication by signaling between gateway and exterior terminal, gateway is finished the conversion of voice coding modes in this locality, make the terminal of communication can operate as normal.
A kind of universal voip gateway of multiple terminal and means of communication of terminal room supported provided by the invention comprise the steps:
1) between gateway and the terminal based on the communication process of signaling, make both sides relatively consult common voice encoding and decoding mode;
2) gateway receives speech data, selects relevant voice encoding and decoding mode conversion program according to the original voice encoding and decoding mode of speech data with the new code encoding/decoding mode that will be transformed into, and realizes the conversion of speech data;
3) speech data after gateway will be changed sends to terminal, does further processing by terminal.
The invention has the advantages that:
1, realized support, can change mutually between the various voice encoding and decoding modes, enlarged the scope of application of various terminals existing whole voice encoding and decoding modes.
2, support the access of multiple terminal, no matter which kind of voice encoding and decoding mode is terminal be, can both be applied in the gateway.
3, Tong Hua terminal room can possess different voice encoding and decoding modes, both can realize unified insert of multiple terminal in VoIP system, can simplify Terminal Design again, reduces the terminal cost.
Description of drawings
Fig. 1 is the structure chart of the universal voip gateway of the multiple terminal of support of the present invention.
Fig. 2 is the application scenarios figure of the universal voip gateway of the multiple terminal of support of the present invention.
The drawing explanation:
1-shared storage 2-network processing unit 3-digital signal processor
Embodiment
To content of the present invention, coupling apparatus describes in detail method of the present invention below in conjunction with the drawings and specific embodiments.
A kind of universal voip gateway of multiple terminal of supporting of present embodiment comprises: shared storage 1, network processing unit 2 and digital signal processor 3; Shared storage 1 is articulated on data/address bus, address bus and the control bus shared of network processing unit 2 and digital signal processor 3, and one of main function is an exchanges voice data; Be connected with a plurality of interfaces on the network processing unit 2,, realize gateway and outside data communication by these interfaces; Digital signal processor 3 is connected with network processing unit 3 data with shared processor 1.
Shared storage 1 is used for interim voice data, speech data all leaves in this memory before and after encoding and decoding, shared storage 1 also has the relative program of operation in network processing unit 2 and digital signal processor 3, and these programs are loaded into network processing unit 2 or digital signal processor 3 enterprising line operates from shared storage 1 in use.
Network processing unit 2 is used to realize the access and the routing function of network, and it is that a conventional single-chip is formed.
The conversion that digital signal processor 3 is realized various voice encoding and decoding modes, it is made up of the single-chip of buying on the market.
Gateway also has a plurality of interfaces, and in the present embodiment, these interfaces comprise: 802.11b access point, LAN interface, wan interface, FXO interface, FXS interface.
802.11b access point is used to receive the wireless signal of weaving into the 802.11b agreement.
LAN interface is used for being connected between gateway and the local area network (LAN).
Wan interface is used for being connected between gateway and the wide area network.
The effect of FXO interface is the standard interface that is connected with the common simulation telephone network.
The effect of FXS interface is the standard interface that is connected with the common simulation phone.
Because gateway of the present invention is supported multiple voice encoding and decoding mode, and terminal also has more than a kind of voice encoding and decoding mode, and a communication process based on signaling is arranged between gateway and the terminal, makes both sides relatively consult common voice encoding and decoding mode.Signaling is by standard agreement, and as H.323, SIP, H.248 or MGCP, or a kind of control field of generating of custom protocol (control word) comprise all voice encoding and decoding modes of initiator's (can be that terminal also can be a gateway) of calling in the signaling.After the recipient who calls out receives signaling, the voice encoding and decoding mode that answer itself is had.Gateway is finished the conversion of voice encoding and decoding mode according to both sides' voice encoding and decoding mode in this locality, be about to the voice coding modes that the local vocoded data that inserts converts far-end to, guarantees normally carrying out of speech communication.May have the new voice encoding and decoding mode that gateway can't be supported in actual applications, at this moment, gateway will write down this mode, uses when upgrading in order to next time, or it is reported to server, realizes the dynamic load of speech coding program.Being recorded in the network processing unit 2 of novel voice code encoding/decoding mode realized.
After gateway and terminal connect, speech data has a flow path switch in gateway, consider versatility, the general flow path switch of speech data in the present embodiment gateway is: external voice data (speech data that also comprises FXS or FXO) enter gateway by the network interface of network processing unit 2, network processing unit 2 and digital signal processor 3 are with master-slave mode shared data bus, address bus and control bus, network processing unit 2 leaves these speech datas in shared storage 1 temporarily, relevant voice encoding and decoding mode conversion program is selected and loaded to digital signal processor 3 from shared storage 1, move this program is carried out code encoding/decoding mode to the speech data in the shared storage 1 conversion.Digital signal processor 3 realized after the conversion of voice encoding and decoding mode, and the new speech data of coding is sent to speech data after shared storage 1 and informing network processor 2 send conversion.Network processing unit 2 selects network interface that speech data is sent according to the new voice encoding and decoding mode after changing.
After in gateway, having realized speech data code encoding/decoding mode conversion and related data being sent, terminal receives speech data, the speech data code encoding/decoding mode of this moment is that terminal is supported, so terminal can directly handle speech data, is converted into voice signal.
By the flow path switch of above-mentioned speech data as seen, no matter which kind of voice encoding and decoding mode is terminal be, as long as gateway is supported the voice encoding and decoding mode of this terminal, whether the voice encoding and decoding mode of two terminals of then no matter conversing is identical, two terminal rooms can be conversed, and have overcome two terminals of conversing when using existing gateway and must support the limitation that the identical terminal that voice encoding and decoding mode caused is used.
In the scope at gateway of the present invention place, for various terminals, no matter which kind of voice encoding and decoding mode it is, can realize speech communication.Therefore, under the situation of gateway extensive use of the present invention, terminal can only be selected the simplest a kind of voice encoding and decoding mode for use, has so just simplified the design of terminal, has reduced the terminal cost.
As shown in Figure 2, be an application scenarios of gateway of the present invention.Portable terminal A is near gateway of the present invention, and portable terminal A will carry out communication with terminal B at a distance.Portable terminal A sends after the request of setting up contact, and gateway of the present invention is held consultation by signaling and terminal B, selection terminal B a kind of voice encoding and decoding mode that can support.The code encoding/decoding mode of gateway speech data that portable terminal A is sent is converted to the voice encoding and decoding mode that terminal B supports then, speech data after will changing then is sent to terminal B place by internet and/or other communication networks, and terminal B can directly do further processing to speech data.Speech data is similar with it from the process that terminal B is sent to portable terminal A.Wherein, terminal B can be any speech communication terminal, as portable terminal, and common simulation phone, common simulation telephone network etc.
The gateway of present embodiment can be realized the transmission of the multiple mode of speech data.
1, speech data carries out the VoIP communication by wide area network.
Network processing unit 2 receives the speech data of RPE-LTP coded system by the 802.11b access point, network processing unit 2 leaves these speech datas in the shared storage 1 temporarily, send for simultaneously digital signal processor 3 and handle request signal, the conversion of code encoding/decoding mode is carried out in request to speech data, after digital signal processor 3 is received request, whether look self busy, do accordingly and reply, if busy, then send out block signal and give shared storage 1, make data in shared storage 1, continue to wait for, if it is idle, then send out request signal and give shared storage 1, request shared memory 1 is sent into speech data in the digital signal processor 3, to be further processed.After speech data enters digital signal processor 3, relevant voice encoding and decoding mode conversion program is selected and loaded to digital signal processor 3 according to the existing coded system (RPE-LTP coded system) of speech data and the coded system (G..711) that will be transformed into thereof from shared storage 1, utilize this program that the RPE-LTP coded system is transformed into the G..711 mode.After the EOC, the speech data of encoding in the G..711 mode is sent to network processing unit 2, and network processing unit 2 selects wan interface to import among the Internet packing data.Reverse procedure is similar.
2, speech data carries out the VoIP communication by local area network (LAN).
If the outside portable terminal of realizing speech communication then can be realized the interconnected of portable terminal and other terminal by local area network (LAN) in same local area network (LAN), promptly speech data can carry out the VoIP communication by local area network (LAN).Speech data carries out the VoIP communication and carries out the VoIP communication by wide area network and compare by local area network (LAN), and the characteristics of himself are arranged: the access point of the 802.11b that outside portable terminal can be by gateway is interconnected with the realization of other terminal.
Interconnected between outside portable terminal can be divided into two kinds of situations:
1) if the voice encoding and decoding format of two outside portable terminals is identical, then speech data enters gateway does not need digital signal processor 3 to carry out the conversion of voice encoding and decoding mode later on, speech data is selected corresponding speech data passage after entering network processing unit 2, directly speech data is exported.
2) if the voice encoding and decoding format difference of two outside portable terminals, network processing unit 2 receives speech data by the 802.11b access point, and deposit shared storage 1 in, do the conversion of voice encoding and decoding format in digital signal processor 3, the speech data after the conversion selects for use corresponding speech data passage to send to outside portable terminal in the same local area network (LAN).
Top embodiment has described two kinds of possible speech datas and has transmitted situations, can the relevant interface among the embodiment be adjusted accordingly according to concrete voice encoding and decoding mode.
In an embodiment of the present invention, WLAN standard has all adopted 802.11b, and for other WLAN standard such as 802.11a and 802.11g, the present invention is suitable equally.
Claims (4)
1, a kind of universal voip gateway of supporting multiple terminal is realized the existing mutual conversion of all voice encoding and decoding modes is comprised: shared storage (1), network processing unit (2), external interface; It is characterized in that, also comprise digital signal processor (3); Shared storage (1) is articulated on data/address bus, address bus and the control bus shared of network processing unit (2) and digital signal processor (3), shared storage (1) is used for interim voice data, and network processing unit (2) and digital signal processor (3) carry out exchanges data by it; Network processing unit (2) is used to realize the access and the routing function of network, is connected with a plurality of interfaces above, by these interfaces, realizes gateway and outside data communication; Digital signal processor (3) is connected with network processing unit (2) data with shared processor (1).
2, the universal voip gateway of the multiple terminal of support according to claim 1, it is characterized in that, described shared storage (1) also has the program of operation in network processing unit (2) and digital signal processor (3), and these programs are loaded into network processing unit (2) or the enterprising line operate of digital signal processor (3) from shared storage (1) in use.
3, the universal voip gateway of the multiple terminal of support according to claim 1, it is characterized in that, described digital signal processor (3) is according to original, from shared storage (1), select and load the voice encoding and decoding mode conversion program with the voice encoding and decoding mode that will change, realize conversion various voice encoding and decoding modes.
4, a kind of universal voip gateway of multiple terminal and means of communication of terminal room supported comprise the steps:
1) between gateway and the terminal based on the communication process of signaling, make both sides relatively consult common voice encoding and decoding mode;
2) gateway receives speech data, selects relevant voice encoding and decoding mode conversion program according to the original voice encoding and decoding mode of speech data with the new code encoding/decoding mode that will be transformed into, and realizes the conversion of speech data;
3) speech data after gateway will be changed sends to terminal, does further processing by terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410096158 CN1783855A (en) | 2004-11-30 | 2004-11-30 | General gate for supporting various terminal and communication method between gate and terminal |
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| CN 200410096158 CN1783855A (en) | 2004-11-30 | 2004-11-30 | General gate for supporting various terminal and communication method between gate and terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478617B (en) * | 2008-12-31 | 2012-01-18 | 中国电信股份有限公司 | Method, system, household gateway and USB wireless device for implementing VOIP voice |
| CN103428384A (en) * | 2013-08-12 | 2013-12-04 | 深圳市吉祥腾达科技有限公司 | System and method for realizing mobile VoIP (Voice over Internet Phone) service of smart handheld device |
| CN103703752A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Circuit digital signal processing device and method |
| 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 |
| CN112291568A (en) * | 2020-11-13 | 2021-01-29 | Oppo广东移动通信有限公司 | Data processing method, device, medium, network access device and electronic device |
| CN113079392A (en) * | 2021-03-08 | 2021-07-06 | 深圳奇迹智慧网络有限公司 | Media content playing method and device, computer equipment and storage medium |
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2004
- 2004-11-30 CN CN 200410096158 patent/CN1783855A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478617B (en) * | 2008-12-31 | 2012-01-18 | 中国电信股份有限公司 | Method, system, household gateway and USB wireless device for implementing VOIP voice |
| CN103428384A (en) * | 2013-08-12 | 2013-12-04 | 深圳市吉祥腾达科技有限公司 | System and method for realizing mobile VoIP (Voice over Internet Phone) service of smart handheld device |
| CN103703752A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Circuit digital signal processing device and method |
| WO2015027379A1 (en) * | 2013-08-26 | 2015-03-05 | 华为技术有限公司 | Line digital signal processing device and method |
| CN103703752B (en) * | 2013-08-26 | 2015-12-09 | 华为技术有限公司 | A kind of line numbers signal handling equipment and method |
| US9866704B2 (en) | 2013-08-26 | 2018-01-09 | Huawei Technologies Co., Ltd. | Line digital signal processing device and method |
| 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 |
| CN112291568A (en) * | 2020-11-13 | 2021-01-29 | Oppo广东移动通信有限公司 | Data processing method, device, medium, network access device and electronic device |
| WO2022100203A1 (en) * | 2020-11-13 | 2022-05-19 | Oppo广东移动通信有限公司 | Data processing method, apparatus, medium, network access device, and electronic device |
| CN113079392A (en) * | 2021-03-08 | 2021-07-06 | 深圳奇迹智慧网络有限公司 | Media content playing method and device, computer equipment and storage medium |
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