CN101355738B - Voice transmission equipment and method of Abis interface discontinuousness transmission mode - Google Patents
Voice transmission equipment and method of Abis interface discontinuousness transmission mode Download PDFInfo
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Abstract
The invention discloses a voice transmission device and a voice transmission method for a discontinuous transmission mode of an Abis interface. The device comprises an uplink voice transmission system and a downlink voice transmission system, wherein the uplink voice transmission system also comprises a channel decoding module, an uplink rate adaptation module frame and a sending control module which are arranged at a BTS side as well as a rate adaptation transcoding module and a voice frame detection module which are arranged at a BSC side; and the downlink voice transmission system also comprises a rate adaptation transcoding module and a frame sending control module which are arranged at the BSC side as well as a downlink rate adaptation module, a discontinuous transmission control module, a code modulation module and a voice frame detection module which are arranged at the BTS side. The invention also discloses the voice transmission method for the voice transmission device applying the discontinuous transmission mode of the Abis interface. The invention is the voice transmission device and the voice transmission method of uplink or downlink DTX of AMR and AMR-WB services on the Abis interface based on an IP transmission mode.
Description
Technical field
The present invention relates to the speech transmission device and the method for field of mobile communication, be particularly related to a kind of based on AMR (Adaptive Multi-Rate on the Abis interface of IP transmission means, adaptive multi-rate) and AMR-WB (Adaptive Multi-Rate Wideband, the many speed of wideband adaptive) speech transmission device and the method for Ye Wu upstream or downstream DTX (Discontinuous Transmission, discontinuous transmission).
Background technology
GSM is most popular a kind of communication standard in the mobile communication.The Radio Access Network of gsm system is commonly referred to base station sub-system BSS.Base station sub-system is joined with travelling carriage by wave point, carries out wireless signal transmission, reception and RRM; On the other hand, base station sub-system BSS links to each other with the moving exchanging center MSC or the MSC Server of network subsystem, realizes the connection between the different user.In a typical gsm system, base station sub-system comprises two logic contacts: base station controller BSC and base transceiver station BTS.BSS uses dissimilar speech codings to transmit in order to adapt to wireless and wired system, so between BSC and MSC, increased transcoder and corresponding multiplexing equipment, be referred to as yard a type conversion and a Rate Adapter Unit TRAU (Transcoder/Rate Adaptor Unit).Usually TRAU and BSC put together.
Abis interface is defined as two functional entity BSC of base station sub-system and the communication interface between the BTS, is used for the far-end interconnection between BTS and the BSC.Abis interface is by the 2.048Mbps of employing standard or the PCM of 64kbps (Pulse Code Modulation, pulse code modulation) digital transmission link is realized, its supports the service that the oriented user of institute provides, and support is to the control of BTS wireless device and the distribution of wireless frequency.Be responsible for speech coding conversion and rate adapted at BSC side TRAU, its pcm stream from the 64kbps of MSC be converted to 13kbps or more low rate the compressed voice coding or be the compressed voice code conversion pcm stream.What Abis interface user face transmitted is trau frame.In general, transmit a trau frame, comprise 320 bits or 160 Bit datas, be respectively applied for full speed channel and half-rate channel every 20ms.Trau frame can be divided into speech frame, Operation and Maintenance frame, Frame and empty frame again by business or function in addition, wherein speech frame comprises full rate (FR, Full Rate) speech business frame, enhanced full rate (EFR, Enhanced Full Rate) speech business frame, half rate (HR, HalfRate) speech business frame, adaptive multi-rate coding AMR and wideband adaptive multi-rate coding AMR-WB etc.
Voice transfer has dual mode, and a kind of is that no matter whether the user is talking voice flow is encoded continuously and transmitted, and another kind is discontinuous transmission DTX.Under the DTX mode, carry out speech coding and transmission in the voice activation phase; Only transmit the characterisitic parameter of comfort noise at the non-active period of speech, and carry out slow coding.Adopt the DTX mode can reduce aerial total interference level, improve system effectiveness, also can reduce power consumption, the especially travelling carriage of radio receiving-transmitting unit simultaneously.
Adaptive multi-rate service AMR is a kind of voice coding modes commonly used in the gsm system, its core concept is exactly to select optimum channelling mode and coding and decoding pattern according to wireless channel conditions and present flow rate situation, to realize the best of breed of voice quality and power system capacity.
Under the DTX mode, for the professional trau frame of AMR Speech_Good (efficient voice frame), SID_First (first SID frame are arranged, sign begins the comfort noise phase), SID_Updata (SID upgrades frame), Onset (appearing at before first speech frame sign DTX end) and No_Data frame (frame type of no useful information).In addition, the up SID_Bad of also having (bad SID upgrades frame).Above various frame types are referred to as speech frame among the present invention.The DTX handling process of AMR business sees also 3GPP TS46.093.
Traditional GSM network is based on Circuit-switched.Usually the BSC and the BTS at Abis interface two ends can't put together, so Abis interface will take a large amount of transfer resources.And be very low based on its efficiency of transmission of transmission means of E1.Recently along with Softswitch technology is introduced core net, IP-based switching network framework forms gradually.Based on the Abis interface (the present invention is called IP Abis) of IP transmission means as shown in Figure 1.
If under IP Abis pattern, still continue to use E1 pattern load mode at present, promptly transmit all frames (comprising the No_Data frame) in the uplink and downlink direction, will cause a large amount of bandwidth to be wasted.Usually the No_Data frame does not contain related voice information, but has really taken massive band width (test data shows that in communication process about 60%～70% time is to be in the quiet phase).
In order to overcome above deficiency, be necessary when AMR is professional, to introduce in the IP Abis interface transmission method under a kind of new DTX pattern, make the transmission bandwidth that under the situation that does not influence voice quality, reduces the IP Abis interface, keep original processing framework simultaneously as far as possible.
Summary of the invention
Technical problem to be solved by this invention is, a kind of speech transmission device and method of Abis interface discontinuousness transmission mode are provided, the present invention is based on AMR and AMR-WB business under the IP Abis, under the situation that does not influence voice quality, taking of transmission bandwidth can be significantly reduced, and the transmission cost of Abis interface can be effectively reduced.
For achieving the above object, the invention provides a kind of ascending voice transmission system of Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, this ascending voice transmission system comprises: the channel decoding module and the upstream rate adaptation module that are arranged at described BTS side, and be arranged at the rate adapted sign indicating number type modular converter of described BSC side, described ascending voice transmission system also comprises:
Frame sends control module, is arranged at described BTS side, is used to receive the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is arranged at described BSC side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
The speech frame forwarding module is arranged at described BSC side, be used for when the A mouth with the speech frame type of Abis mouth identical, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame.
Further, the present invention also provides a kind of voice transmission method of using the ascending voice transmission system of above-mentioned Abis interface discontinuousness transmission mode, is used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, and this method comprises:
Speech frame sends controlled step, is used for information bit and Control Parameter in the output of described BTS side joint collection of letters road decoding module, and whether sends to the upstream rate adaptation module according to described Control Parameter control speech frame;
Speech frame detects step, be used for described BSC side joint receive described speech frame that described IP network sends and it is detected and recover after send to described rate adapted sign indicating number type modular converter;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame.
Above-mentioned voice transmission method, described speech frame send controlled step and further comprise a determining step, are used to judge whether the speech frame that receives comprises actual parameter, if comprise, then issue described speech frame to described upstream rate adaptation module, otherwise, this speech frame do not sent.
Above-mentioned voice transmission method detects in the step at described speech frame, and the speech frame detection module receives that whenever a speech frame then is handed down to rate adapted sign indicating number type modular converter to this speech frame; When short covering frame when chnnel coding can not receive any frame constantly is handed down to rate adapted sign indicating number type modular converter, and puts the coding and decoding pattern and be designated as present rate value or the setting of initial code collection.
Further, the present invention also provides a kind of downlink voice transmission system of Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, this downlink voice transmission system comprises again: be arranged at the rate adapted sign indicating number type modular converter and the downstream rate adaptation module that is arranged at described BTS side of described BSC side, described downlink voice transmission system also comprises:
Frame sends control module, is arranged at described BSC side, is used to receive the speech frame of described rate adapted sign indicating number type modular converter generation and controls whether send to described IP network according to the type of described speech frame;
The speech frame detection module is arranged at described BTS side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described downstream rate adaptation module;
The voice forwarding module, be arranged at described BSC side, it is identical with the speech frame type of Abis mouth to be used for working as the A mouth, when not needing rate adapted and sign indicating number type translation function, receives speech frame and described speech frame directly is forwarded to described frame transmission control module from core-network side.
Further, the present invention also provides a kind of voice transmission method of using the downlink voice transmission system of above-mentioned Abis interface discontinuousness transmission mode, is used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, and this method comprises:
Speech frame sends controlled step, is used for receiving the speech frame of described rate adapted sign indicating number type modular converter generation and controlling whether send to described IP network according to the type of described speech frame at described BSC side joint;
Speech frame detects step, be used for described BTS side joint receive described speech frame that described IP network sends and it is detected and recover after send to described downstream rate adaptation module;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly be forwarded to described speech frame detection module from core-network side reception speech frame and with described speech frame.
The voice transmission method of the downlink voice transmission system of above-mentioned application Abis interface discontinuousness transmission mode, described speech frame sends the further determining step of controlled step, be used to judge whether the speech frame that receives comprises actual parameter, if comprise, then send described speech frame to described IP network, otherwise, do not send this speech frame.
The voice transmission method of the downlink voice transmission system of above-mentioned application Abis interface discontinuousness transmission mode, described speech frame detects in the step, and the speech frame detection module receives that whenever a speech frame then is handed down to the downstream rate adaptation module to this speech frame; When short covering frame when chnnel coding can not receive any frame constantly is handed down to described downstream rate adaptation module, and puts the coding and decoding pattern and be designated as present rate value or the setting of initial code collection.
Further, the invention provides a kind of voice-transmission system of Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, described voice-transmission system comprises ascending voice transmission system and downlink voice transmission system, described ascending voice transmission system comprises again: be arranged at the channel decoding module and the upstream rate adaptation module of described BTS side, and be arranged at the rate adapted sign indicating number type modular converter of described BSC side; Described downlink voice transmission system comprises again: be arranged at the rate adapted sign indicating number type modular converter of described BSC side and be arranged at the downstream rate adaptation module of described BTS side, discontinuous transmission control module and code modulation module, described ascending voice transmission system also comprises:
Frame sends control module, is arranged at described BTS side, is used to receive the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is arranged at described BSC side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
The speech frame forwarding module is arranged at described BSC side, be used for when the A mouth with the speech frame type of Abis mouth identical, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame;
Described downlink voice transmission system also comprises:
Frame sends control module, is arranged at described BSC side, is used to receive the speech frame of described rate adapted sign indicating number type modular converter generation and controls whether send to described IP network according to the type of described speech frame;
The speech frame detection module is arranged at described BTS side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described downstream rate adaptation module;
The voice forwarding module, be arranged at described BSC side, it is identical with the speech frame type of Abis mouth to be used for working as the A mouth, when not needing rate adapted and sign indicating number type translation function, receives speech frame and described speech frame directly is forwarded to described speech frame detection module from core-network side.
Further, the present invention also provides a kind of voice transmission method of using the voice-transmission system of above-mentioned Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, described voice transmission method comprises ascending voice frame transmitting step and downlink speech frame transmitting step:
Described ascending voice frame transmitting step further comprises:
Speech frame sends controlled step, is used for information bit and Control Parameter in the output of described BTS side joint collection of letters road decoding module, and whether sends to the upstream rate adaptation module according to described Control Parameter control speech frame;
Speech frame detects step, be used for described BSC side joint receive described speech frame that described IP network sends and it is detected and recover after send to described rate adapted sign indicating number type modular converter;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame;
Described downlink speech frame transmitting step further comprises:
Speech frame sends controlled step, is used for receiving the speech frame of described rate adapted sign indicating number type modular converter generation and controlling whether send to described IP network according to the type of described speech frame at described BSC side joint;
Speech frame detects step, be used for described BTS side joint receive described speech frame that described IP network sends and it is detected and recover after send to described downstream rate adaptation module;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly be forwarded to described speech frame detection module from core-network side reception speech frame and with described speech frame.
Further, the present invention also provides a kind of base transceiver station of voice transfer of Abis interface discontinuousness transmission mode, be used for handling by the speech frame that IP network sends or the reception base station controller BSC sends, described base transceiver station comprises channel decoding module, upstream rate adaptation module and downstream rate adaptation module, and described base transceiver station also comprises:
Frame sends control module, is used in the ascending voice transmission course, receives the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is used in the downlink voice transmission course, receive speech frame that described BSC sends by described IP network and to its detect and recover after send to described downstream rate adaptation module.
Further, the present invention also provides a kind of base station controller of voice transfer of Abis interface discontinuousness transmission mode, be used for handling by the speech frame that IP network receives or transmission base transceiver station BTS sends, described base station controller comprises a rate adapted sign indicating number type modular converter, and this base station controller also comprises:
The speech frame detection module is used in the ascending voice transmission course, receive speech frame that described BTS sends by described IP network and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
Whether frame sends control module, is used in the downlink voice transmission course, receive speech frame that described rate adapted sign indicating number type modular converter generates and send on the described IP network according to the type control of described speech frame;
The speech frame forwarding module, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and yard type translation function, directly transmit described speech frame.
Compared with prior art, the present invention can significantly reduce taking of transmission bandwidth by reduce the transmission of unnecessary speech frame (invalid No_Data frame) in IP Abis interface uplink and downlink direction under the situation that does not influence voice quality.Adopt under the situation of DTX pattern in provisional capital up and down, can save about 40%～50% transmission bandwidth, effectively reduce the transmission cost of Abis interface.
In addition, the present invention is based on TDM (Time Division Multiplex original, time division multiplexing) increased frame under the framework of mode and sent control and frame detection module, of the present invention being applied in when reducing transmission bandwidth keeps original processing framework as far as possible, makes things convenient for system upgrade and transformation.
Description of drawings
Fig. 1 is the schematic diagram of IP Abis interface;
The ascending voice frame of IP Abis interface DTX pattern was handled structured flowchart when Fig. 2 was embodiment of the invention AMR business;
The downlink speech frame of IP Abis interface DTX pattern was handled structured flowchart when Fig. 3 was embodiment of the invention AMR business;
Ascending voice frame data process chart when Fig. 4 is IP Abis interface DTX pattern;
Downlink voice frame data process chart when Fig. 5 is IP Abis interface DTX pattern.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples, with purpose, scheme and the effect of further understanding the present invention, but is not as the restriction to claims protection range of the present invention.
The speech transmission device of Abis interface discontinuousness transmission mode of the present invention, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, the uplink and downlink of IP Abis interface adopted the speech frame of DTX pattern to handle structured flowchart when Fig. 2 and Fig. 3 were the AMR business respectively.The speech transmission device of this Abis interface discontinuousness transmission mode comprises ascending voice transmission system and downlink voice transmission system, with reference to figure 2, described ascending voice transmission system comprises again: the channel decoding module 201, the frame that are arranged at the BTS side send control module 202 and upstream rate adaptation module 203; And be arranged at speech frame detection module 204, rate adapted sign indicating number type modular converter (TRAU) 205 and the speech frame forwarding module 206 of BSC side.On up direction, channel decoding module 201 is finished the channel decoding of speech frame, and exports some band inner control parameters; Frame sends control module 202 will judge whether to send this speech frame to upstream rate adaptation module 203 according to the type of current speech frame.If the current speech frame is the No_Data frame and does not comprise actual parameter that then this speech frame is not handed down to upstream rate adaptation module 203; Otherwise issue.Upstream rate adaptation module 203 will be finished information bit and Control Parameter are put into speech frame according to different types of service work.Here the speech frame structure can adopt traditional trau frame structure, also can the time other types frame structure, as RFC3267 frame structures specified etc.The frame detection module 204 of BSC side is finished the work that speech frame detects and recovers, and receives that whenever a speech frame (comprising Speech frame and SID frame) then is handed down to rate adapted sign indicating number type modular converter to this speech frame.When mending the No_Data frame when can not receive any frame in the channel decoding moment (being the 20ms interval), CMI (Codec_Mode_Indication, the indication of coding and decoding pattern) is changed to current rate value or the setting of initial code collection.TRAU module 205 is resolved speech frame according to different types of service, and finishes the conversion of speech frame sign indicating number type.If TRAU is in the BSC side, but be positioned at core-network side, promptly this moment, the A mouth was by IPization, and the A mouth is identical with the speech frame type of Abis mouth, and this moment, speech frame will be directly by 206 forwardings of speech frame forwarding module.
Ascending voice frame data process chart below with reference to Fig. 2 and Fig. 4, was described the uplink step of Abis interface discontinuousness transmission mode voice transmission method of the present invention in detail when Fig. 4 was IP Abis interface DTX pattern, and this uplink step further comprises:
Step S401: channel decoding obtains speech frame information bit and some band inner control parameters;
Step S402: according to the transmission of described Control Parameter control speech frame.If the current speech frame is the No_Data frame and does not comprise actual parameter that then this speech frame is not handed down to upstream rate adaptation module 203; Otherwise issue.
Step S403: rate adapted.According to different type of service structure speech frames;
Step S404: by the speech frame detection module 204 of IP network transmission voice frames to the BSC side;
Does step S405: speech frame detection module 204 judge whether the A mouth identical with the speech frame type of Abis mouth? if not, execution in step S406 then is if then execution in step S407 directly transmits;
Step S406: speech frame detects and recovers; The frame detection module 204 of BSC side receives that whenever a speech frame then is handed down to rate adapted sign indicating number type modular converter to this speech frame; When mending the No_Data frame when can not receive any frame in the channel decoding moment (20ms at interval), CMI (Codec_Mode_Indication, the indication of coding and decoding pattern) is changed to current rate value or the setting of initial code collection.
Step S407: carry out the speech business frame and transmit.
With reference to figure 3, described downlink voice transmission system comprises again: the rate adapted sign indicating number type modular converter (TRAU) 301, the frame that are arranged at the BSC side send control module 302 and speech frame forwarding module 303; Be arranged at speech frame detection module 304, downstream rate adaptation module 305, DTX control module 306 and the code modulation module 307 of BTS side.On down direction, rate adapted and sign indicating number type modular converter (TRAU) 301 are arranged on BSC side or network side, and when it was arranged on the BSC side, the reception speech frame carries out rate adapted and this speech frame of coding and decoding type conversion back transmission sends control module 302 to frame.The same with up processing, speech frame can be a trau frame, also can be the frame structure (as RFC3267) of other types.Whether frame sends speech frame that the adaptive sign indicating number of control module 302 receiving velocities type modular converter 301 generates and sends on the IP network according to the type control of this speech frame.When this speech frame be No_Data frame and this frame when not containing effective parameter this frame conductively-closed fall, do not send to the IP Abis interface; Otherwise send on the network.If TRAU is arranged at network side, then the speech frame of coming from core-network side will directly be forwarded to frame by speech frame forwarding module 303 and send control module.
The downlink frame detection module 304 of BTS side is used to finish the work that speech frame detects and recovers.Whenever receive that a speech frame then is handed down to downstream rate matching module 305 to this speech frame, mend the No_Data frame when can not receive any frame when the chnnel coding moment (20ms at interval) at BTS, CMI is changed to current rate value or the setting of initial code collection.DTX control module 306 and code modulation module 307 are finished the DTX control of chnnel coding, modulation and the wave point of the speech frame of BTS side.
Downlink voice frame data process chart below with reference to Fig. 3 and Fig. 5, was described the downlink transfer step of Abis interface discontinuousness transmission mode voice transmission method of the present invention in detail when Fig. 5 was IP Abis interface DTX pattern, and this downlink transfer step comprises:
Step 501: judge that when the frame transmission control module 302 of BSC side the speech frame type of A mouths and Abis mouth is identical, when not needing rate adapted and sign indicating number type translation function, then directly carry out the forwarding of speech frame, enter step 503 by speech frame forwarding module 303;
Step 502: judge that when the frame transmission control module 302 of BSC side the speech frame type of A mouths and Abis mouth is different, when needing rate adapted and sign indicating number type translation function, at first finish speech coding type conversion and rate adapted by TRAU module 301;
Step 503: speech frame sends control; This frame conductively-closed is fallen if the current speech frame is No_Data frame and this frame when not containing effective parameter, does not send to the IP Abis interface; Otherwise send on the network.
Step 504: speech frame is in the transmission of IP network;
Step 505: speech frame detects and recovers.Whenever receive that a speech frame then is handed down to the downstream rate adaptation module to this speech frame; Mend the No_Data frame when can not receive any frame when the chnnel coding moment (20ms at interval) at BTS, CMI is changed to current rate value or the setting of initial code collection.
Step 506: rate adapted, resolve speech frame;
Step 507: the DTX control of chnnel coding, modulation and wave point.
To sum up example is that example is set forth with the AMR business, but thought of the present invention and method are applicable to wideband adaptive multiple-rate business AMR-WB too.
To sum up, with speech frame is that the trau frame structure is that example has provided specific embodiments of the invention, but speech frame of the present invention is not limited to the TRAR frame structure, can also be the frame structure of other types, and the variation etc. of band intrinsic parameter does not influence essence of the present invention and spirit in the change of frame structure and the frame.
Though the present invention discloses as above with a preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1. the ascending voice transmission system of an Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, this ascending voice transmission system comprises: the channel decoding module and the upstream rate adaptation module that are arranged at described BTS side, and be arranged at the rate adapted sign indicating number type modular converter of described BSC side, it is characterized in that described ascending voice transmission system also comprises:
Frame sends control module, is arranged at described BTS side, is used to receive the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is arranged at described BSC side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
The speech frame forwarding module is arranged at described BSC side, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from described speech frame detection module reception speech frame.
2. an application rights requires the transmission method of the ascending voice transmission system of 1 described Abis interface discontinuousness transmission mode, is used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, it is characterized in that this method comprises:
Speech frame sends controlled step, is used for information bit and Control Parameter in the output of described BTS side joint collection of letters road decoding module, and whether sends to the upstream rate adaptation module according to described Control Parameter control speech frame;
Speech frame detects step, be used for described BSC side joint receive described speech frame that described IP network sends and it is detected and recover after send to described rate adapted sign indicating number type modular converter;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame.
3. according to the described voice transmission method of claim 2, it is characterized in that, described speech frame sends controlled step and further comprises a determining step, be used to judge whether the speech frame that receives comprises actual parameter, if comprise, then issue described speech frame to described upstream rate adaptation module, otherwise, this speech frame do not sent.
4. voice transmission method according to claim 2 is characterized in that, detects in the step at described speech frame, and the speech frame detection module receives that whenever a speech frame then is handed down to rate adapted sign indicating number type modular converter to this speech frame; When short covering frame when chnnel coding can not receive any frame constantly is handed down to rate adapted sign indicating number type modular converter, and puts the coding and decoding pattern and be designated as present rate value or the setting of initial code collection.
5. the downlink voice transmission system of an Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, this downlink voice transmission system comprises again: the rate adapted sign indicating number type modular converter and the downstream rate adaptation module that is arranged at described BTS side that are arranged at described BSC side, it is characterized in that described downlink voice transmission system also comprises:
Frame sends control module, is arranged at described BSC side, is used to receive the speech frame of described rate adapted sign indicating number type modular converter generation and controls whether send to described IP network according to the type of described speech frame;
The speech frame detection module is arranged at described BTS side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described downstream rate adaptation module;
The voice forwarding module is arranged at described BSC side, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, receive speech frame and described speech frame directly be forwarded to described frame transmission control module from core-network side.
6. an application rights requires the transmission method of the downlink voice transmission system of 5 described Abis interface discontinuousness transmission modes, is used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, it is characterized in that this method comprises:
Speech frame sends controlled step, is used for receiving the speech frame of described rate adapted sign indicating number type modular converter generation and controlling whether send to described IP network according to the type of described speech frame at described BSC side joint;
Speech frame detects step, be used for described BTS side joint receive described speech frame that described IP network sends and it is detected and recover after send to described downstream rate adaptation module;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly be forwarded to described speech frame detection module from core-network side reception speech frame and with described speech frame.
7. transmission method according to claim 6 is characterized in that, described speech frame sends the further determining step of controlled step, be used to judge whether the speech frame that receives comprises actual parameter,, then send described speech frame to described IP network if comprise, otherwise, do not send this speech frame.
8. voice transmission method according to claim 6 is characterized in that, described speech frame detects in the step, and the speech frame detection module receives that whenever a speech frame then is handed down to the downstream rate adaptation module to this speech frame; When short covering frame when chnnel coding can not receive any frame constantly is handed down to described downstream rate adaptation module, and puts the coding and decoding pattern and be designated as present rate value or the setting of initial code collection.
9. the voice-transmission system of an Abis interface discontinuousness transmission mode, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, described voice-transmission system comprises ascending voice transmission system and downlink voice transmission system, described ascending voice transmission system comprises again: be arranged at the channel decoding module and the upstream rate adaptation module of described BTS side, and be arranged at the rate adapted sign indicating number type modular converter of described BSC side; Described downlink voice transmission system comprises again: is arranged at the rate adapted sign indicating number type modular converter of described BSC side and is arranged at the downstream rate adaptation module of described BTS side, discontinuous transmission control module and code modulation module, it is characterized in that,
Described ascending voice transmission system also comprises:
Frame sends control module, is arranged at described BTS side, is used to receive the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is arranged at described BSC side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
The speech frame forwarding module is arranged at described BSC side, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame;
Described downlink voice transmission system also comprises:
Frame sends control module, is arranged at described BSC side, is used to receive the speech frame of described rate adapted sign indicating number type modular converter generation and controls whether send to described IP network according to the type of described speech frame;
The speech frame detection module is arranged at described BTS side, be used to receive described speech frame that described IP network sends and to its detect and recover after send to described downstream rate adaptation module;
The voice forwarding module, be arranged at described BSC side, it is identical with the speech frame type of Abis mouth to be used for working as the A mouth, when not needing rate adapted and sign indicating number type translation function, receives speech frame and described speech frame directly is forwarded to described speech frame detection module from core-network side.
10. an application rights requires the voice transmission method of the voice-transmission system of 9 described Abis interface discontinuousness transmission modes, be used to comprise the communication system of base transceiver station BTS, base station controller BSC and IP network, described voice transmission method comprises ascending voice frame transmitting step and downlink speech frame transmitting step, it is characterized in that
Described ascending voice frame transmitting step further comprises:
Speech frame sends controlled step, is used for information bit and Control Parameter in the output of described BTS side joint collection of letters road decoding module, and whether sends to the upstream rate adaptation module according to described Control Parameter control speech frame;
Speech frame detects step, be used for described BSC side joint receive described speech frame that described IP network sends and it is detected and recover after send to described rate adapted sign indicating number type modular converter;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly transmit from speech frame detection module reception speech frame;
Described downlink speech frame transmitting step further comprises:
Speech frame sends controlled step, is used for receiving the speech frame of described rate adapted sign indicating number type modular converter generation and controlling whether send to described IP network according to the type of described speech frame at described BSC side joint;
Speech frame detects step, be used for described BTS side joint receive described speech frame that described IP network sends and it is detected and recover after send to described downstream rate adaptation module;
Speech frame is transmitted step, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and sign indicating number type translation function, directly be forwarded to described speech frame detection module from core-network side reception speech frame and with described speech frame.
11. the base transceiver station of the voice transfer of an Abis interface discontinuousness transmission mode, be used for handling by the speech frame that IP network sends or the reception base station controller BSC sends, described base transceiver station comprises channel decoding module, upstream rate adaptation module and downstream rate adaptation module, it is characterized in that described base transceiver station also comprises:
Frame sends control module, is used in the ascending voice transmission course, receives the information bit and the Control Parameter of described channel decoding module output, and whether sends to described upstream rate adaptation module according to described Control Parameter control speech frame;
The speech frame detection module is used in the downlink voice transmission course, receive speech frame that described BSC sends by described IP network and to its detect and recover after send to described downstream rate adaptation module.
12. the base station controller of the voice transfer of an Abis interface discontinuousness transmission mode, be used for handling by the speech frame that IP network receives or transmission base transceiver station BTS sends, described base station controller comprises a rate adapted sign indicating number type modular converter, it is characterized in that this base station controller also comprises:
The speech frame detection module is used in the ascending voice transmission course, receive speech frame that described BTS sends by described IP network and to its detect and recover after send to described rate adapted sign indicating number type modular converter;
Whether frame sends control module, is used in the downlink voice transmission course, receive speech frame that described rate adapted sign indicating number type modular converter generates and send on the described IP network according to the type control of described speech frame;
The speech frame forwarding module, be used for when the A mouth identical with the speech frame type of Abis mouth, when not needing rate adapted and yard type translation function, directly transmit described speech frame.
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| CN2007101195223A CN101355738B (en) | 2007-07-25 | 2007-07-25 | Voice transmission equipment and method of Abis interface discontinuousness transmission mode |
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| CN2007101195223A CN101355738B (en) | 2007-07-25 | 2007-07-25 | Voice transmission equipment and method of Abis interface discontinuousness transmission mode |
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| CN101355738B true CN101355738B (en) | 2011-07-13 |
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| CN101877625A (en) * | 2010-06-29 | 2010-11-03 | 中兴通讯股份有限公司 | Receiving process method of downlink speech frame, device and baseband |
| EP2472812B1 (en) * | 2010-12-29 | 2014-02-12 | Rtx A/S | Scalable wireless multicell voip architecture |
| CN102790997B (en) * | 2011-05-19 | 2017-05-10 | 中兴通讯股份有限公司 | Method and device for transmission of adaptive multi-rate (AMR) voice data |
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| CN1464758A (en) * | 2002-06-25 | 2003-12-31 | 华为技术有限公司 | Processing method for implementing multiple voice services |
| CN1514998A (en) * | 2001-01-31 | 2004-07-21 | �����ɷ� | Method and apparatus for inter operability between voice tansmission systems during speech inactivity |
| CN1863164A (en) * | 2006-01-12 | 2006-11-15 | 华为技术有限公司 | Method for controlling reverse congestion of ABIS interface and transceiver base station |
| CN1867087A (en) * | 2006-02-10 | 2006-11-22 | 华为技术有限公司 | Realization method and system for improving voice quality in wireless communication network |
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| CN1514998A (en) * | 2001-01-31 | 2004-07-21 | �����ɷ� | Method and apparatus for inter operability between voice tansmission systems during speech inactivity |
| CN1464758A (en) * | 2002-06-25 | 2003-12-31 | 华为技术有限公司 | Processing method for implementing multiple voice services |
| CN1863164A (en) * | 2006-01-12 | 2006-11-15 | 华为技术有限公司 | Method for controlling reverse congestion of ABIS interface and transceiver base station |
| CN1867087A (en) * | 2006-02-10 | 2006-11-22 | 华为技术有限公司 | Realization method and system for improving voice quality in wireless communication network |
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