CN100512473C - Codec mode configuration selection in transcoder-free runtime - Google Patents
Codec mode configuration selection in transcoder-free runtime Download PDFInfo
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- CN100512473C CN100512473C CNB2005800126371A CN200580012637A CN100512473C CN 100512473 C CN100512473 C CN 100512473C CN B2005800126371 A CNB2005800126371 A CN B2005800126371A CN 200580012637 A CN200580012637 A CN 200580012637A CN 100512473 C CN100512473 C CN 100512473C
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- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000001413 cellular effect Effects 0.000 claims description 3
- 238000010295 mobile communication Methods 0.000 claims description 2
- 101150081027 RNC1 gene Proteins 0.000 abstract description 18
- 101100426111 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TRM2 gene Proteins 0.000 abstract description 18
- 101150015070 rnc2 gene Proteins 0.000 abstract description 13
- 101100078001 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MSC2 gene Proteins 0.000 abstract description 10
- 101150117600 msc1 gene Proteins 0.000 abstract description 7
- 230000011664 signaling Effects 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 101100465000 Mus musculus Prag1 gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
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- 230000001419 dependent effect Effects 0.000 description 1
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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
- H04W88/18—Service support devices; Network management devices
- H04W88/181—Transcoding devices; Rate adaptation devices
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Abstract
The invention relates to a method and a device for establishing a TrFO connection between two communication terminals via a communication network. According to the invention, at least one codec mode configuration supported by a radio network controller (RNC1, RNC2) involved in the connection set-up is stored in a memory unit (T1, T2). This information is transferred between switching units (MSC1, MSC2) and used to select a codec mode configuration or a subset of codec mode configurations supported on both sides.
Description
The present invention relates to a kind of method and apparatus that is used between two communication terminal devices, setting up the TrFO connection by communication network.
3GPP " 3rd Generation Partnership Project; TechnicalSpecification Group Core Network; Out of band transcodercontrol; Stage 2 (Release 5) (third generation collaborative project; The technical specification group core net; The outer code converter control of frequency band; Stage 2 (version 5)) " (3GPP TS 23.153 V5.7.0; In March, 2004; The the 1st to 72 page; XP002337144) the outside code converter of frequency band that speech business has been described is controlled.In addition, discussed be used for supporting that no code converter moves, no series operation and TrFO and coefficient principle of TFO and method.
WO 01/91489 A1 has illustrated a kind of method of connecting of being used between first node and Section Point, wherein, two nodes are connected with core net.First node sends to first core net node and connects the signal of setting up inquiry.If first node is an access node, then this first node sends initialization according to Frame Protocol.Initialization comprises parameter sets, is used for the information that framework (Einrahmen) is sent between first access node and first core net node.If first node is not an access node, then first crosspoint is stipulated this parameter sets.This parameter sets is sent to first core net node, and is stored by first core net node.First core net node comes initialization to lead to the connection of other core net node according to agreement, and this other core net node has been stored this parameter sets.In other core net node, the initialization that realize to connect step by step and the storage of parameter sets always is till getting in touch with can be with core net node that second access node is connected the time.So this core net node comes initialization to lead to the connection of second access node according to applied agreement, and this second access node has been stored this parameter sets.
In order to utilize no code converter operation (TrFO=Transcoder free Operation), must be at the network element that is participated in (UE, RNC, MSC) consult a kind of common coder type between, or under the situation of many speed coder type, consult a kind of set (Set) or configuration of common codec modes.For this reason, between communication terminal device (UE) and crosspoint (MSC), on the Iu interface, use the BICC signaling to exchange information necessary by the NAS signaling or by Nc interface.Towards radio network controller (RNC), do not stipulate corresponding signaling protocol so far, during connecting foundation, radio network controller characteristic (RNC characteristic) can be notified to crosspoint (MSC) by this signaling protocol.Be alternative in this place, generated the RNC database in crosspoint (MSC), this RNC database comprises as the coder type of being supported and the RNC characteristic of codec modes, and passes through O﹠amp by Virtual network operator; M equipment (operation and maintenance=Operation and Maintenance) loads.
So far when no code converter operation (TrFO), allow the crosspoint (terminal MS C) that receives to consult the codec modes configuration, this crosspoint is selected a kind of configuration of codec modes arbitrarily from the set (Set) of all the common patterns supported and coder.At this, the notion of codec modes configuration had both related to pattern, for example AMR (self adaptation multi code Rate of Chinese character coder (adaptive multirate codec)) of coder, related to different coder types, for example AMR and GSM full rate (Full Rate) again.
But reality shows, do not support any configuration of codec modes arbitrarily in Access Network side (UTRAN side), but the quantity of the codec modes of being supported configuration is limited on a few.If carrying out not considering when coder is consulted that the codec modes of being supported in Access Network side (UTRAN side) disposes, then this is as causing connecting the interruption of foundation as indicated among Fig. 1.
Task of the present invention is to advise that a kind of being used for reduces the simple and efficient possibility that connects interruption at no code converter run duration.
Theme by independent claims solves this task respectively according to the present invention.Expansion scheme of the present invention has been described in the dependent claims.
Core of the present invention is, has stored the codec modes configuration of being supported by the radio network controller that is participated in memory cell.When consulting coder, can consider these codec modes configurations, also only select the codec modes configuration of in fact also being supported by crosspoint MSC thus by radio network controller (RNC).
Advantageous embodiment of the present invention is, in radio network controller (RNC), not only support the codec modes configuration, but also support all subclass that codec modes disposes, in other words, if for example support codec modes configuration " a/b/c ", then also support subclass a, b, c, a/b, b/c, a/c.Stored corresponding information in memory cell, this information provides the details about following situation for this reason, is promptly supported a kind of which subclass of codec modes configuration by radio network controller.This information can signaling message, element of message, bit or the like are sent to (terminal) crosspoint (MSC) that receives.When consulting coder, therefore whether for example this crosspoint that receives (MSC) check supports the codec modes that is provided to dispose, and check in second step, supports which subclass (Subset) of codec modes configuration.
The invention has the advantages that, only just can significantly reduce the quantity that two connections between the communication terminal device are interrupted with small technology spending.In addition, the embodiment of this method and device has following advantage, promptly there is not the probability increase that the code converter operation connects, because Access Network (UTRAN) is not only supported the codec modes configuration, and support its subclass, and therefore can significantly improve two quality of connection between the communication terminal device.
Elaborate the present invention by the embodiment shown in the accompanying drawing.At this,
Fig. 1 shows a kind of network architecture of simplification, is used for the codec modes of known manner negotiation at the connection between two communication terminal devices,
Fig. 2 shows a kind of network architecture of simplification, and be used for consulting codec modes and dispose according to the present invention,
Fig. 3 shows a kind of network architecture of simplification, is used for comprising that consulting codec modes according to the present invention under the situation of subclass disposes,
Fig. 4 shows a kind of apparatus of the present invention that are used to carry out this method.
Fig. 1 shows a kind of network architecture of simplification, is used for consulting codec modes at the connection between two communication terminal device UE at for example cellular mobile radio as UMTS net.Radio network controller RNC1 supports two kinds of different codec modes configurations (pattern (1,2), (3,4)).In the memory cell T1 of the crosspoint MSC1 that controls, in contrast typing all AMR patterns 1 to 4.Crosspoint MSC also may be a MSC server etc.The negotiation of codec modes is described by BICC signaling ((Bearer Independent Call Control) controlled in the calling of BICC=and bearer independent) in this example., applied signaling is unessential for the inventive method.Therefore for example also SIP signaling (SIP=session IP agreement (Session IPProtocol)) or the like may be used to consult codec modes.The codec modes configuration that radio network controller RNC1 is supported is not considered.The second radio network controller RNC2 is same to support two kinds of different codec modes to dispose ( pattern 1,2 and pattern 4,5).In the memory cell T2 of the second crosspoint MSC2, the codec modes configuration among the radio network controller RNC2 is not considered again.In memory cell T2 again typing all AMR patterns 1 to 5.Consult in order to carry out coder, transmission (originating) side with crosspoint MSC1, RNC1 memory cell T1 and radio network controller RNC1 for example with the form of tabulation, form or analog with coder type and the codec modes supported to some extent be transferred to reception (terminal) side with crosspoint MSC2, memory cell T2 and radio network controller RNC2, (1).At receiver side, the coder type supported and tabulation, form or the analog of pattern have been reduced type and the pattern that is not supported the recipient, selected coder, and sent back to transmitter side, (2) with a kind of codec modes configuration.Now, utilize selected codec modes, initiate RAB assignment (assignment of radio access bearer circuit (Radio Access Bearer-Assigment)), (3) towards the direction of radio network controller RNC1., because radio network controller RNC1 and RNC2 do not support selected codec modes configuration (1,2,4), so cause refusing the RAB assignment, (4).Therefore, between two communication terminal device UE (such as mobile radio terminal apparatus, mobile computer, moving tissue device or the like), can not set up connection with no code converter operation.
Fig. 2 shows a kind of network architecture of simplification, is used for consulting codec modes according to the present invention and disposes.A kind of codec modes configuration can be made up of the combination of two kinds of codec modes at least.In the memory cell T1 of the crosspoint MSC1 that controls, typing the codec modes configuration of being supported by radio network controller RNC1 (pattern (1,2) and pattern (3,4)).Memory cell T1, T2 also can be the unit of crosspoint MSC1, MSC2.The second radio network controller RNC2 is same to support two kinds of different codec modes to dispose ( pattern 1,2 and pattern 4,5).In the memory cell T2 of the second crosspoint MSC2, typing or these two kinds of codec modes configurations of having stored radio network controller RNC2.Consult in order to carry out coder, transmitter side with crosspoint MSC1, memory cell T1 and radio network controller RNC1 for example will be transferred to by the codec modes configuration that radio network controller RNC1 is supported with the form of tabulation, form or analog or signaling has the receiver side of crosspoint MSC2, memory cell T2 and radio network controller RNC2, (1).At receiver side, the codec modes configuration of being supported by radio network controller RNC2 among this tabulation, form or analog and the memory cell T2 is compared, this tabulation, form or analog are reduced to the codec modes configuration of being supported, select a kind of codec modes configuration, and send back to transmitter side, (2).Utilize selected codec modes configuration now, initiate RAB task (assignment of radio access bearer circuit), (3) towards the direction of radio network controller RNC1.Because two radio network controller RNC1 and RNC2 support selected codec modes configuration (1,2), thus between two communication terminal device UE, can set up no code converter operation connection, be the TrFO connection, (4).
Fig. 3 shows a kind of network architecture of simplification, is used for comprising that consulting codec modes according to the present invention under the situation of subclass disposes.As illustrated in fig. 2, carry out the negotiation of the codec modes configuration that will select., additionally also give the crosspoint MSC2 that receives with message transmission, this information explanation, radio network controller RNC1 supports the subclass of the codec modes configuration of institute's signaling.At this, can signaling message, the element of bit, message or the like sends this information to receive crosspoint MSC2.Under the situation of this simplification, radio network controller RNC1 supports all subclass, and therefore sends ack/nack information, (2).The crosspoint MSC1 signaling that sends or inform the crosspoint MSC2 that receives, radio network controller RNC1 supports subclass.For this reason, comprise following information in memory cell T1, this information has stated whether subclass is supported by radio network controller RNC1.In memory cell T2, store radio network controller RNC2 and whether supported the information of subclass.So the crosspoint MSC2 that receives can therefrom select at least a codec modes configuration or the subclass of being supported by the radio network controller RNC1, the RNC2 that are participated in.Therefore can further improve and between two communication terminal device UE, realize the probability that TrFO connects.In this example, therefore can utilize pattern 2 to set up TrFO connects.
Fig. 4 shows a kind of apparatus of the present invention that are used to carry out according to the method for Fig. 2 and Fig. 3.At this, this device it is desirable to crosspoint MSC, and has transmitting element S and receiving element E, is used for and carry out mobile communication such as other network element of radio network controller RNC, crosspoint MSC and communication terminal device UE.In memory cell T, stored the codec modes configuration of being supported by the network radio controller (RNC).At this, memory cell T can be form, database, tabulation or analog.Processing unit V in the crosspoint has selected the such codec modes configuration that is used for setting up no code converter operation between two communication terminal devices, and this codec modes configuration is also supported by at least two radio network controllers that participated in (RNC1 and RNC2).
Claims (15)
1. be used between two communication terminal devices, setting up the method for the connection of no code converter operation by communication network,
It is characterized in that,
In first memory cell (T1), stored at least a codec modes configuration of being supported by first radio network controller (RNC1), with in second memory cell (T2), stored at least a codec modes configuration of being supported by second radio network controller (RNC2)
Will this at least a codec modes that is stored in connection in described first memory cell (T1), that be used between described two communication terminal devices setting up no code converter operation dispose by the crosspoint that sends (MSC1) and to send the crosspoint (MSC2) that receives to, and
The described crosspoint that receives (MSC2) compares this at least a codec modes configuration that receives with this at least a codec modes configuration that is stored in described second memory cell (T2), and select by described two radio network controllers (RNC1, the codec modes of RNC2) being supported configuration.
2. press the described method of claim 1,
It is characterized in that,
At least a codec modes has been represented in the codec modes configuration.
3. press one of above claim described method,
It is characterized in that,
(T1 T2) is described two crosspoints (MSC1, unit MSC2) to described two memory cell.
4. press claim 1 or 2 described methods,
It is characterized in that,
(T1 comprises that (RNC1 RNC2) supports the information of at least one subclass of at least a codec modes configuration to radio network controller in T2) in described two memory cell.
5. press the described method of claim 4,
It is characterized in that,
Support the information of at least one subclass of at least a codec modes configuration to send the crosspoint (MSC2) that receives to relevant radio network controller by the crosspoint that sends (MSC1).
6. press claim 1 or 2 described methods,
It is characterized in that,
The described crosspoint that receives (MSC2) is selected a codec modes configuration and/or a subclass of being supported by the radio network controller that receives (RNC2).
7. press the described method of claim 1,
It is characterized in that,
Described communication network is a cellular mobile radio.
8. press claim 1 or 2 described methods,
It is characterized in that,
With database, tabulation and/or form as memory cell (T1, T2).
9. be used between two communication terminal devices, setting up the device of the connection of no code converter operation by communication network,
-have crosspoint (MSC1) that sends and the crosspoint (MSC2) that receives, be used for other network element (RNC1, RNC2, MSC1, MSC2 UE) carries out mobile communication,
-have first memory cell (T1), be used to store at least a codec modes configuration of being supported by first radio network controller (RNC1), with have second memory cell (T2), be used to store at least a codec modes configuration of being supported by second radio network controller (RNC2)
-have a processing unit (V) that is arranged in the described crosspoint that receives (MSC2), be used at least a described first memory cell (T1) of being stored in, the codec modes configuration and at least a codec modes configuration that is stored in described second memory cell (T2) that are sent by the crosspoint that sends (MSC1) compare, be used for only selecting and be used between described two communication terminal devices setting up that no code converter moves, also by described two radio network controllers (RNC1, this codec modes configuration of RNC2) being supported.
10. press the described device of claim 9,
It is characterized in that,
(T1 T2) is described two crosspoints (MSC1, unit MSC2) to described two memory cell.
11. by one of claim 9 to 10 described device,
It is characterized in that,
Be provided with the described crosspoint that sends (MSC1), be used for supporting the information of at least one subclass of at least a codec modes configuration to send the crosspoint (MSC2) that receives to relevant radio network controller.
12. by claim 9 or 10 described devices,
It is characterized in that,
Be provided with the described crosspoint that receives (MSC2), be used to select a codec modes configuration and/or the subclass supported by the radio network controller that receives (RNC2).
13. by the described device of claim 9,
It is characterized in that,
Cellular mobile radio is set to communication network.
14. by claim 9 or 10 described devices,
It is characterized in that,
Database, tabulation and/or form be set to memory cell (T1, T2).
15. by the described device of claim 9,
It is characterized in that,
Communication terminal device (UE), radio network controller (RNC1, RNC2) and/or crosspoint (MSC1 MSC2) is set to network element.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004019988.4 | 2004-04-23 | ||
| DE200410019988 DE102004019988B4 (en) | 2004-04-23 | 2004-04-23 | Codec mode configuration selection for transcoder-free operations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1947444A CN1947444A (en) | 2007-04-11 |
| CN100512473C true CN100512473C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800126371A Expired - Fee Related CN100512473C (en) | 2004-04-23 | 2005-03-29 | Codec mode configuration selection in transcoder-free runtime |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1738601A1 (en) |
| CN (1) | CN100512473C (en) |
| BR (1) | BRPI0510162A (en) |
| DE (1) | DE102004019988B4 (en) |
| RU (1) | RU2366112C2 (en) |
| WO (1) | WO2005104582A1 (en) |
| ZA (1) | ZA200607787B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335731B (en) * | 2007-06-26 | 2012-08-08 | 华为技术有限公司 | Transmission method and device based on OFDM |
| CN101415249B (en) * | 2007-10-16 | 2011-02-16 | 华为技术有限公司 | Method, system and apparatus for negotiating data business signaling of session initialization protocol |
| WO2013097090A1 (en) * | 2011-12-27 | 2013-07-04 | 华为技术有限公司 | Codec negotiation method and device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60026138T2 (en) * | 2000-04-26 | 2006-10-26 | Fujitsu Ltd., Kawasaki | MULTIPORT COMMUNICATION PROCESS AND COMMUNICATION CONTROLLER |
| EP1182840A1 (en) * | 2000-08-24 | 2002-02-27 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Method for a connection through a core network |
| EP1284091B1 (en) * | 2000-05-22 | 2012-09-26 | Telefonaktiebolaget L M Ericsson (publ) | Method for a connection through a core network |
| JP3450295B2 (en) * | 2000-12-14 | 2003-09-22 | 日本電気株式会社 | Communication system and method and switching node |
| CN100579321C (en) * | 2002-04-24 | 2010-01-06 | 艾利森电话股份有限公司 | Method and device for bypassing transcoding operations in communication network |
| US20030210659A1 (en) * | 2002-05-02 | 2003-11-13 | Chu Chung Cheung C. | TFO communication apparatus with codec mismatch resolution and/or optimization logic |
| AU2002317686A1 (en) * | 2002-05-31 | 2003-12-19 | Siemens Aktiengesellschaft | Interrogation of the current valid bit rate for the interruption of a trfo call |
-
2004
- 2004-04-23 DE DE200410019988 patent/DE102004019988B4/en not_active Expired - Fee Related
-
2005
- 2005-03-29 CN CNB2005800126371A patent/CN100512473C/en not_active Expired - Fee Related
- 2005-03-29 WO PCT/EP2005/051414 patent/WO2005104582A1/en active Application Filing
- 2005-03-29 BR BRPI0510162-0A patent/BRPI0510162A/en not_active IP Right Cessation
- 2005-03-29 RU RU2006141349/09A patent/RU2366112C2/en not_active IP Right Cessation
- 2005-03-29 EP EP05740115A patent/EP1738601A1/en not_active Withdrawn
-
2006
- 2006-09-18 ZA ZA200607787A patent/ZA200607787B/en unknown
Non-Patent Citations (2)
| Title |
|---|
| Out of band transcoder control, stage2 (Release 5). 3rd，Generation，partnership，project.3GPP TS 23.153 V5.7.0. 2004 |
| Out of band transcoder control, stage2 (Release 5). 3rd，Generation，partnership，project.3GPP TS 23.153 V5.7.0. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1738601A1 (en) | 2007-01-03 |
| BRPI0510162A (en) | 2007-10-02 |
| RU2366112C2 (en) | 2009-08-27 |
| CN1947444A (en) | 2007-04-11 |
| DE102004019988B4 (en) | 2006-07-27 |
| DE102004019988A1 (en) | 2005-11-17 |
| RU2006141349A (en) | 2008-05-27 |
| ZA200607787B (en) | 2008-03-26 |
| WO2005104582A1 (en) | 2005-11-03 |
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