CN1643956A - Transmission of speech information in a packet-oriented network - Google Patents
Transmission of speech information in a packet-oriented network Download PDFInfo
- Publication number
- CN1643956A CN1643956A CNA03806846XA CN03806846A CN1643956A CN 1643956 A CN1643956 A CN 1643956A CN A03806846X A CNA03806846X A CN A03806846XA CN 03806846 A CN03806846 A CN 03806846A CN 1643956 A CN1643956 A CN 1643956A
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- China
- Prior art keywords
- portable terminal
- software
- grouping
- towards
- voice messaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/253—Telephone sets using digital voice transmission
- H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention relates to a mobile terminal for a packet-oriented network, especially UMTS, which transmits, as a default, speech information in a connection-oriented manner. The mobile terminal comprises a module that can be preferably retrofitted and that intercepts the speech information before it is transmitted in a connection-oriented manner in order to divide it up into packets that can be transmitted in a packet-oriented manner.
Description
Technical field
The present invention relates to be used for method and portable terminal towards packet network (especially UMTS), it is based on coming transmitting voice information towards the connection standard.
Background technology
The a large amount of requirement in real time of portable terminal means that the network of current use has the characteristic of mixing during transmitting voice information.On the one hand, relating to when making a large amount of information that requires in real time them towards grouping.On the other hand, they are connection-oriented when relating to voice transfer.These voice transfer are usually directed to use dedicated channel.The big fluctuation that occurs at (particularly in portable terminal) aspect the quality of connection means, only just may use grouping to carry out the high-quality transmission of voice messaging under the situation that can guarantee related network and transmission quality thereof.
Ensure the quality of products and be not the application's characteristics; In the application of submitting to prior to the application, this point had been described.Or rather, the object of the present invention is to provide the clearing method that a kind of user can transparent selection transport-type.
The diversity of phone means on the market, and the present invention must realize that described function need not different specification requirements according to the diversity of distinct device.When transmitting audio data, use to be, only need very little bandwidth, because voice transfer only takies a direction usually at every turn towards the advantage of the method for dividing into groups.In addition, voice transfer relates to only with long relatively time interval transmission information.This should allow the user to save cost, because normally depend on capacity towards the rate of grouping but not depend on that the time collects.In addition, network operator should be able to comprise a large amount of users, because can utilize various performances better.
Summary of the invention
The objective of the invention is with transparent way based on towards grouping and transmitting voice information.
This purpose realizes by the present invention who meets the independent claims feature.Favourable development of the present invention is characterised in that dependent claims.
The present invention mainly is the portable terminal that is used for towards grouping (particularly UMTS), and it is based on coming transmitting voice information towards the connection standard.This terminal provides such module: it preferably can be installed after a while, based on intercepted voice messaging before connecting transmitting voice information.As a result, use tradition can not set up any connection towards method of attachment.Before voice messaging being divided into grouping and suitably packing, be by the translate phase of a use codec.The selection of codec is depended on the current characteristic of quality of connection and is desirably in the characteristic that is had in the future.Assessment to performance is in the future calculated by suitable algorithm, and this optimal algorithm selection ground is based at random consideration.But, may use other algorithm equally, such as neural net.For based on sending these groupings, preferably consider Real-time Transport Protocol towards grouping.When by this way grouping being packed, use as far as possible towards the connection of grouping they are transferred to the software exchange/media gateway that can transmit these groupings subsequently.Software exchange/media gateway can be unpacked to these groupings sometimes equally, then they is repacked in the other grouping.This depends on that whom other end interlocutor is and how sets up to his connection.
In a preferred embodiment, relate to and being loaded on the terminal and transparent connecting and the user does not know the storehouse or the driving of this connection.Under special case, quality is bad to providing acceptable result towards transmission packets, and this software layer can determine according to routine transmission information.But, be noted that its functional while also is a feature of terminal, and be to provide by suitable nextport hardware component NextPort.
Described software is integrated on portable terminal in the existing software as one deck, thereby the appreciable various changes of user are made in the application that does not need visit to be positioned at the software on the module of the present invention.This method means look similarly to be that the user is communicating according to conventional method.Like this, this layer is transparent to the user, because usually the user only uses such as browser, telephone directory, address book, dialer etc. and is positioned at application on the highest software layer.
In a possible embodiment, modular form is for driving, and it is positioned on the grouping storehouse and is provided on the driving of connection-oriented communication.
In another embodiment, provide can be by using the directly interface of visit for software.This is not transparent embodiment, but the specific embodiment that is used for the developer.Herein, providing can be by the API of the direct visit of other softwares.
If should use RTP as agreement, then the present invention also comprises the RTCP processor, and its quality of checking transmission is to change setting.The RFC that further discusses below the accurate design of this RTCP processor is taken from.
Another feature of the present invention is the module that is used for the compensate for jitter loss.This has compensated distortion and packet loss, preferably uses buffer.
Another feature of the present invention is the method that is used for towards grouping wireless network (especially UMTS) transmitting voice information, and it is based on towards connecting the standard transmission voice messaging, and wherein the voice messaging from portable terminal is blocked, based on transmitting towards connection.In further step,, voice messaging is encoded if also fully do not finish.Can select different codings according to the quality that connects towards grouping here.In step subsequently, the voice messaging of encoding is carried out packetizing, preferably produce the RTP grouping.
In addition, in the method, prediction (forward-looking) algorithm especially at random or neural algorithm, is selected the form of codec and/or definite packetizing.
As previously mentioned, come initialization and set up by the software exchange/media gateway that information is forwarded to receiver to connect towards the voice of grouping.
Another feature is to carry out and to realize the computer program of said method on different platform.It can be stand-alone machine code or special purpose machinery code.In another embodiment, replace or the existing driving of expansion, and replacement and/or expansion base.
Another feature of the present invention is to have the data storage medium that is loaded in the portable terminal main storage, carries out the data structure of the inventive method.
Description of drawings
Use the example embodiment that illustrates in the accompanying drawing that the present invention can be described in further detail.Wherein, the same reference numerals in each accompanying drawing indicates identical element.Particularly:
Fig. 1 illustrates the schematic diagram of different layers among the present invention and arrangement and corresponding module design;
Fig. 2 illustrates the detailed design of schematic diagram among Fig. 1 by different subassemblies and corresponding connection thereof.
Embodiment
Fig. 1 illustrates layer model of the present invention.Module fmQ is a quality assurance system, and it is checked on the quality and constantly to making estimation future.According to these estimations, for example, select another codec in time or change the parameter that other can influence signal power or packetizing type.On transport layer (being shown as being IP, UDP and TCP), real-time packet handler is arranged, it is responsible for packetizing.On this layer, be arranged with the responsible module that voice messaging is encoded.This module is the basis of further voice application.The multimedia control module is used to provide API (API).It is the storehouse normally, and such as the figure and the optical system that allow on-line meeting, other application program is all based on it.
Fig. 2 shows detailed design by information path between each module.
For example, codec modules comprises the interface unit of access voice information.The information that receives is carried out filtering, thereby eliminate echo, and adjust volume suitably.
Then information is sent to the coding unit (AMR and AMR-WB codec are referring to the 3GPP document in the appendix) of being responsible for Code And Decode.
(referring to the IETF document) is sent to real-time grouping system with voice messaging when having created frame.This real-time packet handler at first comprises distortion and compensating for loss and damage device, RTP packetizer and RTCP processor.It is functional can take from should with the corresponding RFC that lists of place, end.Distortion and compensating for loss and damage device were described in front.It comprises storage area in fact.Be designed for the unit of packetizing grouping, make it can consider other host-host protocol at any time by simple expansion.The network level of the real-time addressable bottom of packet handler.In this explanation, the UDP of packet handler visit in real time level.But, also can directly visit IP level or TCP level.
Real-time processor has to the interface of tcpip stack and is provided for the API of multimedia application and is used for the API of RTCP.
The multimedia control unit is responsible for connecting, and manages these connections and checks these connections.In addition, this unit can pass through control corresponding unit access encoder.This chip with the communicating by letter of other modules in play a part very important.In Session Control Unit, realize communication function.Module can be when transmitting appropriate signals by SIP or other modules wish to start when such other application.For example, an example is the jpg reader, perhaps explorer, and its startup is used for corresponding data.Suitable management system identification needs to start the program that is used to handle the information in the self information expansion.
Be signaling control unit under the multimedia control unit, it is responsible for physical signalling.One of main task of this unit is the mapping Session Initiation Protocol.The method from the 3GPP document is used in the realization of this unit, and is as described below.
The PDP context that also provides at this unit activates (context activation), and to the UMTS network with to the data link of USIM, USIM differentiates the user and allows and connects with suitable connection attribute (service quality).The external interface that can be used as agent application in addition.It allows the application of integrated use standard SIP storehouse to work in the 3G environment.
Carry out the module of SIP compression and another module of support SDP agreement in addition.SDP is used for some SIP method, with the attribute of describing the terminal of being responsible for rtp streaming and the attribute of consulting the equipment in the multimedia call that is included in.This unit also has to the module interface of multimedia control unit (MC) and IP storehouse.
The citing document tabulation:
[1]RTP：A?Transport?Protocol?for?Real-Time?Applications，IETFRFC?1889
[2]RTP：A?Transport?Protocol?for?Real-Time?Applications，IETFdraft-ietf-avt-rtp-new-11.txt
[3]AMR?Speech?Codec：General?Description，3GPP?TS?26.071v4.0.0
[4]AMR?Wideband?Speech?Codec：General?Description，3GPP?TS26.171?v5.0.0
[5]SIP：Session?Initiation?Protocol，IETF?RFC2543
Claims (17)
1. one kind is used for towards packet network, portable terminal especially for UMTS, it is based on connection-oriented standard transfers voice information, it has the module that preferably can install after a while, based on before connecting transfers voice information, intercepting voice messaging, subsequently can be so that it is decomposed into based on the grouping that transmits towards grouping.
2. according to the described portable terminal of the claim of front, it is characterized in that described network is UMTS, add grouping to the RTP grouping with voice messaging.
3. according to the described portable terminal of the claim of front, it is characterized in that, RTCP is provided processor, it checks transmission quality, thereby causes any change to being provided with.
4. according to the described portable terminal of one or more claims of front, it is characterized in that, further module is provided, AMR especially is provided codec, its permission makes a change codec and/or other parameters when voice are encoded.
5. according to the described portable terminal of one or more claims of front, it is characterized in that, further module is provided, shake compensating for loss and damage device especially is provided, buffer is preferably used in its compensating distortion and packet loss.
6. according to the described portable terminal of one or more claims of front, it is characterized in that, described module can be carried out the installed software form after a while, described software can be integrated in the existing software layer, making does not need correspondence to be used as out the change of any kind of, and described software layer preferably has transparent appearance.
7. according to the described portable terminal of the claim of front, it is characterized in that, place as existing protocol described software and/or driving and/or agreement on driving.
8. according to the described portable terminal of one or more claims of front, it is characterized in that described software provides interface, API preferably is provided, it can directly be visited by other software.
9. one kind is used in wireless network, the especially method of transfers voice information in UMTS towards grouping, and it is based on connection-oriented standard transfers voice information,
Wherein, block the voice messaging from portable terminal, it is based on towards connect transmitting,
Wherein,, just described voice messaging is encoded,, can select different codecs according to the quality that connects towards grouping if also do not finish coding to described voice messaging,
Wherein, the voice messaging of described coding is packetized, preferably produces the RTP grouping.
10. according to the described method of previous methods claim, it is characterized in that look-ahead algorithm preferably at random or neural algorithm, is selected the form of codec and/or definite packetizing.
11., it is characterized in that that described portable terminal has is mounted thereto, be used to software module that voice messaging is turned to pellucidly according to the described method of the one or more claim to a method in front.
12. according to the described method of the one or more claim to a method in front, it is characterized in that, set up described voice connection to the software exchange/media gateway of receiver towards grouping by transmitting described information.
13., it is characterized in that described software exchange is used for the described connection towards grouping of initialization according to the described method of the one or more claim to a method in front.
14. a computer program is characterized in that, when carrying out on portable terminal, it is carried out according to the described method of one of previous methods claim.
15., it is characterized in that described software is the form in storehouse according to the described computer program of previous calculations machine program claim, the existing storehouse of its replacement and/or expansion.
16., it is characterized in that described software adds the further layer driving model to described portable terminal according to the described computer program of the one or more computer program claims in front, described further layer is transparent and information is turned to.
17. a data storage medium, it stores the data structure in the main storage that has been loaded in the portable terminal, carries out according to the described method of one of front claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10213733A DE10213733B4 (en) | 2002-03-26 | 2002-03-26 | Package processor for a mobile device |
| DE10213733.1 | 2002-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1643956A true CN1643956A (en) | 2005-07-20 |
Family
ID=27815998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA03806846XA Pending CN1643956A (en) | 2002-03-26 | 2003-03-25 | Transmission of speech information in a packet-oriented network |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN1643956A (en) |
| AU (1) | AU2003223987A1 (en) |
| DE (1) | DE10213733B4 (en) |
| RU (1) | RU2313195C2 (en) |
| WO (1) | WO2003081927A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141682B (en) * | 2007-10-09 | 2010-12-08 | 中兴通讯股份有限公司 | Method of coding/decoding negotiation between wireless network and core network in mobile communication system |
| DK2329631T3 (en) | 2008-07-24 | 2017-11-20 | ERICSSON TELEFON AB L M (publ) | Legal capture for 2G / 3G devices interacting with the Evolved Packet System |
| CN101667888B (en) * | 2009-09-16 | 2013-09-11 | 中兴通讯股份有限公司 | Self-adapting multi-rate adjusting method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY125299A (en) * | 1999-09-15 | 2006-07-31 | Ericsson Inc | Methods and systems for specifying a quality of service for communication between a mobile station and a packet wireless communications network based upon an application that is executing on the mobile station. |
| US6687239B1 (en) * | 2000-05-08 | 2004-02-03 | Vtech Telecommunications, Ltd | Method for dynamic channel allocation in a frequency hopping radio system |
-
2002
- 2002-03-26 DE DE10213733A patent/DE10213733B4/en not_active Expired - Fee Related
-
2003
- 2003-03-15 RU RU2004131555/09A patent/RU2313195C2/en not_active IP Right Cessation
- 2003-03-15 AU AU2003223987A patent/AU2003223987A1/en not_active Abandoned
- 2003-03-15 WO PCT/EP2003/003101 patent/WO2003081927A1/en not_active Application Discontinuation
- 2003-03-25 CN CNA03806846XA patent/CN1643956A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| RU2004131555A (en) | 2005-04-10 |
| DE10213733A1 (en) | 2003-10-09 |
| RU2313195C2 (en) | 2007-12-20 |
| DE10213733B4 (en) | 2012-12-06 |
| AU2003223987A1 (en) | 2003-10-08 |
| WO2003081927A1 (en) | 2003-10-02 |
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