CN109104295A - A kind of coding and decoding processing method, terminal, the network equipment and computer storage medium - Google Patents
A kind of coding and decoding processing method, terminal, the network equipment and computer storage medium Download PDFInfo
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- CN109104295A CN109104295A CN201710473982.XA CN201710473982A CN109104295A CN 109104295 A CN109104295 A CN 109104295A CN 201710473982 A CN201710473982 A CN 201710473982A CN 109104295 A CN109104295 A CN 109104295A
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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
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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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
Abstract
The embodiment of the invention discloses a kind of coding and decoding processing method, terminal, the network equipment and computer storage mediums.The described method includes: first terminal negotiates codec type by the network equipment and second terminal；In the first terminal and the second terminal first network belonging to the network equipment；When negotiation result determines that the first codec type of selection is communicated, the first terminal with the second terminal is communicated using first codec type and by the network equipment；Wherein, the first terminal supports at least two codec types including first codec type；At least one codec type for including at least two codec type is the codec type that the network equipment is supported.
Description
Technical field
The present invention relates to the communication technologys, and in particular to a kind of coding and decoding processing method, terminal, the network equipment and computer are deposited
Storage media.
Background technique
IP multimedia subsystem (IMS, IP Multimedia Subsystem) is a kind of multimedia service form, can
Meet the demand of more novel, the more diversified multimedia service of present terminal client.Based on IMS voice service (VoLTE,
Voice over Long Term Evolution) it is to be realized based on IMS, it is a kind of IP data transmission technology, whole business
It is carried on long term evolution (LTE, Long Term Evolution) network.With the continuous development of encoding and decoding technique, but foundation
The network and terminal side equipment that existing standard is designed lack ability compatible forward, for example terminal side equipment realizes one kind
After the new codec haveing excellent performance, network side equipment needs to allow eventually by standard revision, device upgrade
End side equipment is communicated using new codec, and this mode needs to carry out the process of the revision of standard, device upgrade, if
It is long to count the period.
Summary of the invention
To solve existing technical problem, the embodiment of the present invention provides a kind of coding and decoding processing method, terminal, network
Equipment and computer storage medium.
In order to achieve the above objectives, the technical solution of the embodiment of the present invention is achieved in that
The embodiment of the invention provides a kind of coding and decoding processing methods, which comprises
First terminal negotiates codec type by the network equipment and second terminal；The first terminal and described second
In the terminal first network belonging to the network equipment；
When negotiation result determines that the first codec type of selection is communicated, the first terminal uses described first
It codec type and is communicated by the network equipment with the second terminal；
Wherein, the first terminal and the second terminal are supported including first codec type at least
Two kinds of codec types；At least one codec type for including at least two codec type is the net
The codec type that network equipment is supported.
In above scheme, when first codec type is the codec type that the network equipment is not supported
When, it include at least one codec in addition to first codec type at least two codec type
Type is the codec type that the network equipment is supported；
The method also includes: when the first terminal switches to the second network by the first network, described in acquisition
Second codec type of the second network support；
Report second codec type to the network equipment.
The embodiment of the invention also provides a kind of coding and decoding processing methods, which comprises
Codec type, network equipment record association are negotiated by the network equipment and second terminal based on first terminal
Quotient's result；In the first terminal and the second terminal first network belonging to the network equipment；
When negotiation result determines that the first codec type of selection is communicated and the network equipment does not support described the
When one codec type, the network equipment supports the first terminal using first codec type and described the
The communication of two terminals；
Wherein, the first terminal and the second terminal are supported including first codec type at least
Two kinds of codec types, and at least one codec type for including at least two codec type is described
The codec type that the network equipment is supported.
In above scheme, the method also includes: the second net is switched to by the first network based on the first terminal
Network, the network equipment obtain the second codec type that the first terminal reports；
The network equipment is based on second codec type and the second terminal negotiates codec type, with
Keep the communication of the first terminal and the second terminal.
In above scheme, when second codec type is the codec type that the network equipment is supported,
The network equipment is based on second codec type and the second terminal negotiates codec type, described in keeping
The communication of first terminal and the second terminal, comprising:
The network equipment and the second terminal negotiate codec type, select the network to set based on negotiation result
The standby third codec type supported；
When second codec type and the third codec type difference, the network equipment is based on institute
It states after the second codec and the third codec carry out encoding and decoding processing to the communication data of the first terminal and sends
To the second terminal, and the communication based on second codec and the third codec to the second terminal
Data are sent to the first terminal after carrying out encoding and decoding processing.
The embodiment of the invention also provides a kind of terminal, the terminal includes: the first negotiation element and the first communication unit；
Wherein,
First negotiation element, for negotiating codec type by the network equipment and other terminals；The terminal
In other described terminals first network belonging to the network equipment；
First communication unit, the negotiation result for obtaining when first negotiation element determine that solution is compiled in selection first
When code device type is communicated, using first codec type and pass through the network equipment and other described terminals
Communication；
Wherein, the terminal and other described terminals support at least two including first codec type
Codec type；At least one codec type for including at least two codec type is that the network is set
The standby codec type supported.
In above scheme, when first codec type is the codec type that the network equipment is not supported
When, it include at least one codec in addition to first codec type at least two codec type
Type is the codec type that the network equipment is supported；First communication unit is also used to when the terminal is by described
When first network switches to the second network, the second codec type of second network support is obtained；Report described second
Codec type is to the network equipment.
The embodiment of the invention also provides a kind of network equipment, the network equipment includes: acquiring unit and the second communication
Unit；Wherein,
The acquiring unit, for negotiating codec type by the network equipment and second terminal based on first terminal,
Record negotiation result；In the first terminal and the second terminal first network belonging to the network equipment；
Second communication unit, for determining the first codec of selection when the negotiation result of acquiring unit record
When type is communicated and the network device itself does not support first codec type, the first terminal is supported
It is communicated using first codec type with the second terminal；
Wherein, the first terminal and the second terminal are supported including first codec type at least
Two kinds of codec types, and at least one codec type for including at least two codec type is described
The codec type that the network equipment is supported.
In above scheme, the network equipment further includes the second negotiation element；
Second communication unit is also used to switch to the second network by the first network based on the first terminal,
Obtain the second codec type that the first terminal reports；
Second negotiation element, second codec type for being obtained based on second communication unit with
The second terminal negotiates codec type, to keep the communication of the first terminal and the second terminal.
In above scheme, second negotiation element, for being the network equipment when second codec type
When the codec type itself supported, negotiate codec type with the second terminal, based on described in negotiation result selection
The third codec type that the network equipment is supported；
Second communication unit, it is different from the third codec type for working as second codec type
When, the communication data of the first terminal is carried out at encoding and decoding based on second codec and the third codec
The second terminal is sent to after reason, and whole to described second based on second codec and the third codec
The communication data at end is sent to the first terminal after carrying out encoding and decoding processing.
The embodiment of the invention also provides a kind of computer storage mediums, are stored thereon with computer program, the program quilt
The step of coding and decoding processing method for being applied to terminal described in the embodiment of the present invention is realized when processor executes.
The embodiment of the invention also provides a kind of computer storage mediums, are stored thereon with computer program, the program quilt
The step of coding and decoding processing method for being applied to the network equipment described in the embodiment of the present invention is realized when processor executes.
The embodiment of the invention also provides a kind of terminal, including memory, processor and storage are on a memory and can be
The computer program run on processor, the processor realize encoding and decoding described in the embodiment of the present invention when executing described program
The step of processing method.
The embodiment of the invention also provides a kind of network equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize volume described in the embodiment of the present invention when executing described program
The step of decoding processing method.
Coding and decoding processing method, terminal, the network equipment and computer storage medium provided in an embodiment of the present invention, a side
Face, first terminal negotiate codec type by the network equipment and second terminal；The first terminal and the second terminal
In the first network belonging to the network equipment；When negotiation result determines that the first codec type of selection is communicated
When, the first terminal with the second terminal is communicated using first codec type and by the network equipment；
Wherein, the first terminal and the second terminal support at least two including first codec type to compile solution
Code device type；At least one codec type for including at least two codec type is the network equipment branch
The codec type held.On the other hand, codec is negotiated by the network equipment and second terminal based on first terminal
Type, the network equipment record negotiation result；The first terminal and the second terminal are belonging to the network equipment
First network in；When negotiation result determines that the first codec type of selection is communicated and the network equipment is not supported
When first codec type, the network equipment support the first terminal using first codec type with
The second terminal communication；Wherein, the first terminal and the second terminal support to include first codec type
At least two codec types inside, and at least one codec for including at least two codec type
Type is the codec type that the network equipment is supported.In this way, terminal uses using the technical solution of the embodiment of the present invention
After the new codec type that the network equipment is not supported, the network equipment is not necessarily to standard revision, device upgrade, can realize end
End is communicated using new codec type, substantially reduces the design cycle.
Detailed description of the invention
Fig. 1 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention one；
Fig. 2 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention two；
Fig. 3 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention three；
Fig. 4 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention three；
Fig. 5 is the composed structure schematic diagram of the terminal of the embodiment of the present invention；
Fig. 6 is the composed structure schematic diagram of the network equipment of the embodiment of the present invention；
Fig. 7 is the coding and decoding processing method of the embodiment of the present invention in mono signal continuous voice call (SRVCC, Single
Radio Voice Call Continuity) data flow diagram in structure.
Specific embodiment
Before the coding and decoding processing method to the embodiment of the present invention is described in detail, first to the volume solution in VoLTE
Code mode is illustrated.VoLTE has used head compression mechanism, supports robustness Header compression (RoHC, Robust Head
Compression) mode, header overhead are substantially reduced than VoIP on an LTE network.
To guarantee the compatibility with existed system, third generation partner program (3GPP, 3rd Generation
Partnership Project) require VoLTE to support narrowband self-adaption multi code Rate of Chinese character coder (AMR_NB) class of codec
Type, it is proposed that use AMR_WB codec type to realize that high definition converses (HD Voice).Enhancing voice service (EVS,
Enhanced Voice Service) it is a kind of new audio codec that 3GPP is defined, leniently by the bandwidth of voice signal
Band (8kHz) is further increased to ultra wide band (16kHz) or even Whole frequency band (20kHz), realizes full HD call (HD Voice+).
Communication system voice quality is measured with average opinion value (Mean Opinion Score, MOS).MOS method
In, 0 point represents worst quality, and 5 points are best result.MOS can only achieve 3.8, EVS under AMR_WB highest code rate 23.85kbps
MOS is up to 4.5 or more at 24.4kbps.
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.
Embodiment one
The embodiment of the invention provides a kind of coding and decoding processing methods, are applied in terminal, the terminal can specifically be remembered
For first terminal.Fig. 1 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention one；As shown in Figure 1, the method
Include:
Step 101: first terminal negotiates codec type by the network equipment and second terminal；The first terminal and
In the second terminal first network belonging to the network equipment.
Step 102: when negotiation result determines that the first codec type of selection is communicated, the first terminal is used
It first codec type and is communicated by the network equipment with the second terminal；Wherein, the first terminal and
The second terminal supports at least two codec types including first codec type；Described at least two
At least one codec type for including in kind codec type is the codec type that the network equipment is supported.
In the present embodiment, terminal (first terminal and second terminal including both call sides) supports at least two codecs
Type；Wherein, at least one codec type for including at least two codec type is the network equipment
The codec type of support；It is to be understood that may include at least two codec type network equipment not
The codec type of support.As an implementation, first terminal described in the present embodiment and second terminal are selected after negotiating
The first codec type selected can be the codec type that the network equipment is not supported.Specifically, showing as one kind
The codec type that example, terminal and the network equipment are supported can be AMR_NB codec type.
In the present embodiment, first terminal and second terminal are in first network belonging to the network equipment, described
First network specifically can be the core network in mobile communications network, the core network include but is not limited to be IMS core
Net.Then the network equipment is specially the equipment of the core network in mobile communications network, e.g. IMS core net equipment.
In the present embodiment, the first terminal is by the network equipment namely passes through the first net belonging to the network equipment
Network and second terminal negotiate codec type.Specifically, the first terminal is whole to described second by the network equipment
End sends negotiation information, may include at least two codec types that the first terminal is supported in the negotiation information.Institute
It states after second terminal receives the negotiation information, is selected from least two codec types that the negotiation information carries
One codec type passes through the net as first codec type, by first codec type of selection
Network equipment is sent to the first terminal.Wherein, first codec type can be the volume solution that the network equipment is not supported
Code device type, is also possible to the codec type of network equipment support.Include at least two codec type
At least one codec type is the codec type that the network equipment is supported；That is, terminal (including call is double
The first terminal and second terminal of side) it supports to include at least the volume that a kind of network equipment is supported at least two codec types
Decoder type may include the codec type that the network equipment is not supported.
In the present embodiment, when the first codec type that determination is negotiated in the first terminal selection is communicated, pass through
First codec type carries out encoding and decoding processing to communication data, and treated, and communication data is sent out through the network equipment
It send to the second terminal, the second terminal carries out volume solution according to first codec type to the communication data of acquisition
Code processing.
As an implementation, the method also includes: when the first terminal switches to by the first network
When two networks, the second codec type of second network support is obtained；Report second codec type to institute
State the network equipment.
Specifically, for example described first terminal is switched to by IMS core net using circuit switching (CS, Circuit
When the 2G or 3G network of exchanged form Switching), then the first terminal obtains the encoding and decoding of second network support
Device type, is denoted as the second codec type, and second codec type is reported to the network by the first terminal
Equipment.
Using the technical solution of the embodiment of the present invention, terminal uses the new codec type do not supported of the network equipment
Afterwards, the network equipment is not necessarily to standard revision, device upgrade, can realize that terminal is communicated using new codec type,
Substantially reduce the design cycle.Simultaneously it is also ensured that keeping communication unimpeded when there is the switching of different system.
Embodiment two
The embodiment of the invention also provides a kind of coding and decoding processing methods, are applied in the network equipment.Fig. 2 is that the present invention is real
Apply the flow diagram of the coding and decoding processing method of example two；As shown in Figure 2, which comprises
Step 201: codec type being negotiated by the network equipment and second terminal based on first terminal, the network is set
Note negotiation result；In the first terminal and the second terminal first network belonging to the network equipment.
Step 202: when negotiation result determines that the first codec type of selection is communicated and the network equipment does not prop up
When holding first codec type, the network equipment supports the first terminal to use first codec type
It is communicated with the second terminal；Wherein, the first terminal and the second terminal support to include first class of codec
At least two codec types including type, and at least one encoding and decoding for including at least two codec type
Device type is the codec type that the network equipment is supported.
In the present embodiment, terminal (first terminal and second terminal including both call sides) supports at least two codecs
Type；Wherein, at least one codec type for including at least two codec type is the network equipment
The codec type of support；It may include the encoding and decoding that the network equipment is not supported at least two codec type
Device type；That is, terminal (first terminal and second terminal including both call sides) supports at least two class of codec
The codec type that a kind of network equipment is supported is included at least in type, may include the class of codec that the network equipment is not supported
Type.As an implementation, the first codec that first terminal described in the present embodiment and second terminal select after negotiating
Type can be the codec type that the network equipment is not supported.Specifically, as an example, terminal and the network equipment
The codec type supported can be AMR_NB codec type.
In the present embodiment, first terminal and second terminal are in first network belonging to the network equipment, described
First network specifically can be the core network in mobile communications network, the core network include but is not limited to be IMS core
Net.Then the network equipment is specially the equipment of the core network in mobile communications network, e.g. IMS core net equipment.
In the present embodiment, the first terminal is by the network equipment namely passes through the first net belonging to the network equipment
Network and second terminal negotiate codec type.Specifically, the first terminal is whole to described second by the network equipment
End sends negotiation information, may include at least two codec types that the first terminal is supported in the negotiation information.Institute
It states after second terminal receives the negotiation information by the transmission of the network equipment, is carried at least from the negotiation information
Select a codec type as first codec type in two kinds of codec types, by described the first of selection
Codec type is sent to the first terminal by the network equipment.Wherein, first codec type can be with
It is the codec type that the network equipment is not supported, is also possible to the codec type of network equipment support.This negotiations process
In, the network equipment obtains negotiation information, analyzes and records negotiation result.That is, the network equipment obtains first terminal hair
When the negotiation information sent is sent to second terminal, obtains the first terminal carry in the negotiation information, described and support extremely
Few two kinds of codec types, namely obtain the coding/decoding capability of the first terminal.The network equipment is obtaining negotiation knot
After fruit, i.e., after the first codec type of acquisition second terminal selection, by dividing first codec type
Analysis, it may be determined that whether first codec type is codec type that the network device itself is supported；It is based on
Analysis is as a result, the volume solution that the network equipment allows the first terminal and second terminal that the network equipment is used not support
Code device type is communicated, and in communication process, the network equipment is not necessarily to hand over the first terminal and the second terminal
Mutual communication data carries out transcoding operation.
Using the technical solution of the embodiment of the present invention, terminal uses the new codec type do not supported of the network equipment
Afterwards, the network equipment is not necessarily to standard revision, device upgrade, can realize that terminal is communicated using new codec type,
Substantially reduce the design cycle.
Embodiment three
Based on embodiment two, the embodiment of the invention also provides a kind of coding and decoding processing methods, are applied in the network equipment.
Fig. 3 is the flow diagram of the coding and decoding processing method of the embodiment of the present invention three；As shown in Figure 3, which comprises
Step 301: codec type, the net are negotiated by the network equipment and second terminal based on first terminal
Network equipment records negotiation result；The first terminal and the second terminal first network belonging to the network equipment
In.
Step 302: when negotiation result determines that the first codec type of selection is communicated and the network equipment does not prop up
When holding first codec type, the network equipment supports the first terminal to use first codec type
It is communicated with the second terminal；Wherein, the first terminal and the second terminal support to include first class of codec
At least two codec types including type, and at least one encoding and decoding for including at least two codec type
Device type is the codec type that the network equipment is supported.
Step 303: the second network being switched to by the first network based on the first terminal, the network equipment obtains
The second codec type that the first terminal reports.
Step 304: the network equipment is based on second codec type and the second terminal negotiates encoding and decoding
Device type, to keep the communication of the first terminal and the second terminal.
It is different from embodiment two, in the present embodiment, when the first terminal switches to the second network by the first network,
Such as when by IMS core net switching to the 2G or 3G network using the exchanged form of CS, then the first terminal obtains described the
The codec type of two network supports, is denoted as the second codec type, and the first terminal is by second codec
Type reports to the network equipment, i.e., the described network equipment obtains the second codec type that the first terminal reports.
In the present embodiment, the network equipment actively renegotiates volume solution with the second terminal in the first network
Code device type.Specifically, the network equipment is based on second codec type and the second terminal negotiates encoding and decoding
Device type, comprising: when second codec type is the codec type that the network equipment is supported, the network
Equipment and the second terminal negotiate codec type, compile solution based on the third that negotiation result selects the network equipment to support
Code device type；When second codec type and the third codec type difference, the network equipment is based on
Second codec and the third codec are sent out after carrying out encoding and decoding processing to the communication data of the first terminal
It send to the second terminal, and the second terminal is led to based on second codec and the third codec
Letter data is sent to the first terminal after carrying out encoding and decoding processing.
As an implementation, the network equipment can information be sent out through consultation by the codec type itself supported
It send to second terminal, the codec type (being denoted as third codec type) of itself support is selected simultaneously by the second terminal
It is back to the network equipment.As another embodiment, the network equipment can also indicate that second terminal sends itself branch
The codec type held, the volume that the network equipment can select itself to support in the codec type that second terminal is supported
Decoder type is as third codec type.After the completion of the network equipment and the second terminal are negotiated, namely selection
After the third codec type that the network equipment is supported, if second codec type and the third codec
Type is identical, then in the first terminal and the communication process of the second terminal, the network equipment is still not necessarily to described
First terminal and the communication data of second terminal interaction carry out transcoding operation.If second code/decode type and described the
Three codec types are different, then the network equipment obtain it is that first terminal is sent, be based on second class of codec
After the communication data of type transcoding, based on second codec type and the third codec type to the communication number
According to transcoding operation is carried out, operation first specifically is decoded according to second code/decode type to the communication data, then right
Decoded communication data is performed the encoding operation according to the third codec type, again by the communication data after encoding operation
It is sent to the second terminal；Correspondingly, the network equipment obtain second terminal send, be based on the third encoding and decoding
After the communication data of device type transcoding, based on the third codec type and second codec type to described logical
Letter data carries out transcoding operation, is specifically first decoded operation according to the third code/decode type to the communication data,
Decoded communication data is performed the encoding operation according to second codec type again, by the communication number after encoding operation
According to retransmiting to the first terminal.
Using the technical solution of the embodiment of the present invention, terminal uses the new codec type do not supported of the network equipment
Afterwards, the network equipment is not necessarily to standard revision, device upgrade, can realize that terminal is communicated using new codec type,
Substantially reduce the design cycle.Simultaneously it is also ensured that the network equipment renegotiates class of codec when there is the switching of different system
Type, to ensure that the duration of communication.
Example IV
The present embodiment is illustrated aforementioned coding and decoding processing method with a specific application scenarios.Fig. 4 is the present invention
The flow diagram of the coding and decoding processing method of embodiment three；As shown in Figure 4, which comprises
Step 401: first terminal issues negotiation information, and the negotiation information is sent to second terminal by the network equipment；
It include the codec type that the first terminal is supported in the negotiation information, it is assumed that the encoding and decoding that the first terminal is supported
Device type includes two kinds of codec types of Opus and AMR_NB, then includes Opus and two kinds of AMR_NB volumes in the negotiation information
Decoder type.As an example, the key parameter in the negotiation information is as follows:
54321 RTP/AVP 100 96 (1) of m=audio
A=rtpmap:100opus/48000/2 (2)
A=rtpmap:96AMR/8000/1 (3)
In key parameter shown in above-mentioned expression formula (1) to (3), the parameter 100 and parameter 96 in expression formula (1) are right respectively
It should be in the Opus codec type in expression formula (2) and the AMR encoder type in expression formula (3).
Wherein, Opus is the voice-coding format an of opening, royalty-free, is carried out by Internet Engineering Task group (IETF)
It standardizes (RFC 6716), suitable for the live sound transmission on network.Opus supports stereo from narrowband speech to high quality
The coding of music.Opus codec type is not classified as the codec type needed support by 3GPP.That is, working as network
When equipment is IMS core net equipment, the network equipment is not support Opus codec type.In the present embodiment, it is assumed that
First terminal and second terminal support Opus codec type, first terminal to initiate VoLTE calling to second terminal.
Step 402: after second terminal receives negotiation information, Opus codec type being selected to be communicated.Although net
Network equipment (i.e. IMS core net equipment) determines that described first is whole although Opus can not be identified, based on the analysis to negotiation result
End and the second terminal support AMR_NB codec type, and AMR_NB codec type is that the network equipment is supported
, then the network equipment allows first terminal and second terminal to be communicated using Opus codec type.
Step 403: being set when any terminal (assuming that being first terminal) in first terminal and second terminal moves out network
When standby affiliated first network (first network is, for example, IMS core net), it is assumed that switch to using circuit exchange mode
TD SDMA (TD-SCDMA, Time Division-Synchronous Code Division Multiple
Access) when network, then the codec type that the first terminal selection circuit exchange network is supported, such as selection AMR_NB
Codec type, and the AMR_NB codec type of selection is reported into the network equipment.
Step 404: the network equipment is to still in the second terminal in first network, (second terminal is still in IMS core
In heart network) by re-INVITE (in the same session retransmit a new INVITE can be described as re-INVITE) or
(UPDATE) process of update carries out renegotiating for codec, and as an implementation, the network equipment can be to second
Terminal sends negotiation information, includes the codec type that the network equipment is supported in the negotiation information, shows as one kind
, the key parameter in the negotiation information is as follows:
M=audio 50000RTP/AVP 100 (4)
A=rtpmap:100AMR/8000/1 (5)
Step 405: receiving the negotiation information still in the second terminal in first network, determine and AMR_NB is selected to compile solution
Code device.Due to first terminal it is currently employed be also AMR_NB codec type, the network equipment is to the first terminal
It does not need to carry out transcoding with the interaction data of second terminal.If after renegotiating, second terminal use codec type with
The codec type that first terminal uses is inconsistent, then the network equipment need to be to the interaction number of the first terminal and second terminal
According to transcoding operation is carried out, it could be identified by first terminal and second terminal, keep the communication between first terminal and second terminal
It is unimpeded.
Embodiment five
The embodiment of the invention also provides a kind of terminals.Fig. 5 is the composed structure schematic diagram of the terminal of the embodiment of the present invention；
As shown in figure 5, the terminal includes: the first negotiation element 51 and the first communication unit 52；Wherein,
First negotiation element 51, for negotiating codec type by the network equipment and other terminals；The end
In end and other described terminals first network belonging to the network equipment；
First communication unit 52, the negotiation result for obtaining when first negotiation element 51 determine selection first
When codec type is communicated, using first codec type and by the network equipment and it is described other
Terminal communication；
Wherein, the terminal and other described terminals support at least two including first codec type
Codec type；At least one codec type for including at least two codec type is that the network is set
The standby codec type supported.
As an implementation, when first codec type is the codec that the network equipment is not supported
It include at least one volume solution in addition to first codec type when type, at least two codec type
Code device type is the codec type that the network equipment is supported；First communication unit 52 is also used to when the terminal
When switching to the second network by the first network, the second codec type of second network support is obtained；Report institute
The second codec type is stated to the network equipment.
It will be appreciated by those skilled in the art that in the terminal of the embodiment of the present invention each processing unit function, before can refer to
It states the associated description of coding and decoding processing method and understands, each processing unit in the terminal of the embodiment of the present invention, it can be by realizing this
The analog circuit of function described in inventive embodiments and realize, can also pass through execute the embodiment of the present invention described in function it is soft
Operation of the part on intelligent terminal and realize.
In the embodiment of the present invention, the first negotiation element 51 and the first communication unit 52 in the terminal, in practical application
In can pass through communications module (including: Base communication external member, operating system, communication module, standard interface and agreement etc.) and receive
Antenna is sent out to realize.
Embodiment six
The embodiment of the invention also provides a kind of network equipments.Fig. 6 is the composition knot of the network equipment of the embodiment of the present invention
Structure schematic diagram；As shown in fig. 6, the network equipment includes: acquiring unit 61 and the second communication unit 62；Wherein,
The acquiring unit 61, for negotiating class of codec by the network equipment and second terminal based on first terminal
Type records negotiation result；In the first terminal and the second terminal first network belonging to the network equipment；
Second communication unit 62, for determining that solution is compiled in selection first when the negotiation result of the acquiring unit 61 record
When code device type is communicated and the network device itself does not support first codec type, described first is supported
Terminal is communicated using first codec type with the second terminal；
Wherein, the first terminal and the second terminal are supported including first codec type at least
Two kinds of codec types, and at least one codec type for including at least two codec type is described
The codec type that the network equipment is supported.
As an implementation, the network equipment further includes the second negotiation element；
Second communication unit 62 is also used to switch to the second net by the first network based on the first terminal
Network obtains the second codec type that the first terminal reports；
Second negotiation element, second codec type for being obtained based on second communication unit 62
Negotiate codec type with the second terminal, to keep the communication of the first terminal and the second terminal.
Specifically, second negotiation element, for being the network device itself when second codec type
When the codec type of support, negotiate codec type with the second terminal, the network is selected based on negotiation result
The third codec type that equipment is supported；
Second communication unit 62, for working as second codec type and the third codec type not
Meanwhile encoding and decoding are carried out to the communication data of the first terminal based on second codec and the third codec
The second terminal is sent to after processing, and based on second codec and the third codec to described second
The communication data of terminal is sent to the first terminal after carrying out encoding and decoding processing.
It will be appreciated by those skilled in the art that in the network equipment of the embodiment of the present invention each processing unit function, can join
According to aforementioned coding and decoding processing method associated description and understand, each processing unit in the network equipment of the embodiment of the present invention, can lead to
It crosses the analog circuit for realizing function described in the embodiment of the present invention and realizes, it can also be by executing described in the embodiment of the present invention
Operation of the software of function on intelligent terminal and realize.
In the embodiment of the present invention, acquiring unit 61 in the network equipment can be set in practical applications by the network
Central processing unit (CPU, Central Processing Unit), digital signal processor (DSP, Digital in standby
Signal Processor), micro-control unit (MCU, Microcontroller Unit) or programmable gate array (FPGA,
Field-Programmable Gate Array) it realizes；The second communication unit 62 and second in the network equipment is negotiated
Unit, in practical applications can (include: Base communication external member, operating system, communication module, standardization connect by communications module
Mouth and agreement etc.) and dual-mode antenna realization.
Fig. 7 is data flow diagram of the coding and decoding processing method of the embodiment of the present invention in SRVCC structure；Such as Fig. 7 institute
Show, UE1 has occurred SRVCC and is switched to UTRAN or GERAN from LTE.In handoff procedure, IMS core net knows that UE1 is switched to
It after the AMR-NB coding that IMS can be identified, has actively initiated to renegotiate with the encoder of UE2, negotiation result is using AMR-
NB, so IMS core net does not need to provide transcoding for UE1, UE2, call is maintained.
The embodiment of the invention also provides a kind of terminal, including memory, processor and storage are on a memory and can be
The computer program run on processor is realized when the processor executes described program and is applied to described in the embodiment of the present invention
The step of coding and decoding processing method in terminal.Specifically, the processor is for executing when running the computer program:
Negotiate codec type by the network equipment and second terminal；The first terminal and the second terminal are in the network
In first network belonging to equipment；When negotiation result determines that the first codec type of selection is communicated, described first eventually
End with the second terminal is communicated using first codec type and by the network equipment；Wherein, described first
Terminal and the second terminal support at least two codec types including first codec type；It is described
At least one codec type for including at least two codec types is the codec that the network equipment is supported
Type.
As an implementation, the processor is for executing: when by described first when running the computer program
When network switching to the second network, the second codec type of second network support is obtained；Described second is reported to compile solution
Code device type is to the network equipment.
The embodiment of the invention also provides a kind of network equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor is realized when the processor executes described program and is answered described in the embodiment of the present invention
For in the network equipment the step of coding and decoding processing method.Specifically, when the processor is used to run the computer program,
It executes: codec type being negotiated based on first terminal and second terminal, records negotiation result；The first terminal and described
In the two terminals first network belonging to the network equipment；When negotiation result determines that the first codec type of selection carries out
The communication and network device itself is not when supporting first codec type, support that the first terminal uses described in
First codec type is communicated with the second terminal；Wherein, the first terminal and the second terminal support to include institute
At least two codec types including the first codec type are stated, and include at least two codec type
At least one codec type be the network equipment support codec type.
As an implementation, the processor is for executing when running the computer program: being based on described first
Terminal switches to the second network by the first network, obtains the second codec type that the first terminal reports；It is based on
Second codec type and the second terminal negotiate codec type, to keep the first terminal and described the
The communication of two terminals.
As an implementation, the processor is for executing when running the computer program: when described second compiles
When decoder type is the codec type that the network equipment is supported, negotiate codec type with the second terminal,
The third codec type for selecting the network device itself to support based on negotiation result；When second codec type
When with the third codec type difference, based on second codec and the third codec to described first
The communication data of terminal is sent to the second terminal after carrying out encoding and decoding processing, and is based on second codec and institute
It states after third codec carries out encoding and decoding processing to the communication data of the second terminal and is sent to the first terminal.
In terminal and the network equipment described in the embodiment of the present invention, memory can be by any kind of volatibility or non-
Volatile storage devices or their combination are realized.Wherein, nonvolatile memory can be read-only memory (ROM,
Read Only Memory), it is programmable read only memory (PROM, Programmable Read-Only Memory), erasable
Programmable read only memory (EPROM, Erasable Programmable Read-Only Memory), electrically erasable
Read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), it is magnetic with
Machine accesses memory (FRAM, Ferromagnetic Random Access Memory), flash memory (Flash
Memory), magnetic surface storage, CD or CD-ROM (CD-ROM, Compact Disc Read-Only Memory)；Magnetic
Memory surface can be magnetic disk storage or magnetic tape storage.Volatile memory can be random access memory (RAM,
Random Access Memory), it is used as External Cache.By exemplary but be not restricted explanation, many forms
RAM it is available, such as static random access memory (SRAM, Static Random Access Memory), synchronize it is static with
Machine accesses memory (SSRAM, Synchronous Static Random Access Memory), dynamic random access memory
Device (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM,
Synchronous Dynamic Random Access Memory), double data speed synchronous dynamic RAM
It is (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), enhanced same
Walk dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access
Memory), synchronized links dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access
Memory), direct rambus random access memory (DRRAM, Direct Rambus Random Access Memory).
The memory 804 of description of the embodiment of the present invention is intended to include but is not limited to the memory of these and any other suitable type.
In terminal and the network equipment described in the embodiment of the present invention, processor may be a kind of IC chip, tool
There is the processing capacity of signal.During realization, each step of the above method can be patrolled by the integrated of the hardware in processor
The instruction for collecting circuit or software form is completed.Above-mentioned processor can be general processor, DSP or other are programmable
Logical device, discrete gate or transistor logic, discrete hardware components etc..Processor may be implemented or execute the present invention
Disclosed each method, step and logic diagram in embodiment.General processor can be microprocessor or any conventional
Processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hardware decoding processor execution
Complete, or in decoding processor hardware and software module combine execute completion.Software module can be located at storage medium
In, which is located at memory, and processor reads the information in memory, and the step of preceding method is completed in conjunction with its hardware
Suddenly.
The embodiment of the invention also provides a kind of computer storage mediums, are stored thereon with computer program, and feature exists
In realizing the step of coding and decoding processing method applied to the method in terminal described in the embodiment of the present invention when program is executed by processor
Suddenly.Specifically, being executed when the computer program is run by processor: negotiating codec by the network equipment and second terminal
Type；In the first terminal and the second terminal first network belonging to the network equipment；When negotiation result is true
When the first codec type being selected to be communicated surely, the first terminal is using first codec type and passes through
The network equipment is communicated with the second terminal；Wherein, the first terminal and the second terminal support to include described the
At least two codec types including one codec type；It include at least at least two codec type
A kind of codec type is the codec type of network equipment support.
As an implementation, it when which is run by processor, executes: switching when by the first network
When to the second network, the second codec type of second network support is obtained；Report second codec type
To the network equipment.
The embodiment of the invention also provides a kind of computer storage mediums, are stored thereon with computer program, and feature exists
In the coding and decoding processing method being applied in the network equipment that the realization embodiment of the present invention is stated when the program is executed by processor
Step.Specifically, being executed when the computer program is run by processor: negotiating encoding and decoding based on first terminal and second terminal
Device type records negotiation result；The first terminal and the second terminal first network belonging to the network equipment
In；When negotiation result determines that the first codec type of selection is communicated and the network device itself does not support described the
When one codec type, the first terminal is supported to communicate using first codec type with the second terminal；
Wherein, the first terminal and the second terminal support at least two including first codec type to compile solution
Code device type, and at least one codec type for including at least two codec type is the network equipment
The codec type of support.
As an implementation, it when which is run by processor, executes: based on the first terminal by institute
It states first network and switches to the second network, obtain the second codec type that the first terminal reports；Based on described second
Codec type and the second terminal negotiate codec type, to keep the first terminal and the second terminal
Communication.
As an implementation, it when which is run by processor, executes: when second class of codec
When type is the codec type that the network equipment is supported, negotiate codec type with the second terminal, based on negotiation
As a result the third codec type for selecting the network device itself to support；When second codec type and described the
When three codec type differences, the first terminal is led to based on second codec and the third codec
Letter data is sent to the second terminal after carrying out encoding and decoding processing, and is compiled based on second codec and the third
Decoder is sent to the first terminal after carrying out encoding and decoding processing to the communication data of the second terminal.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as: multiple units or components can combine, or
It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion
Mutual coupling or direct-coupling or communication connection is divided to can be through some interfaces, the INDIRECT COUPLING of equipment or unit
Or communication connection, it can be electrical, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member, which can be or may not be, to be physically separated, aobvious as unit
The component shown can be or may not be physical unit, it can and it is in one place, it may be distributed over multiple network lists
In member；Some or all of units can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated in one processing unit, it can also
To be each unit individually as a unit, can also be integrated in one unit with two or more units；It is above-mentioned
Integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned include: movable storage device, ROM,
The various media that can store program code such as RAM, magnetic or disk.
If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of software function module and as independent product
When selling or using, it also can store in a computer readable storage medium.Based on this understanding, the present invention is implemented
Substantially the part that contributes to existing technology can be embodied in the form of software products the technical solution of example in other words,
The computer software product is stored in a storage medium, including some instructions are used so that computer equipment (can be with
It is personal computer, server or network equipment etc.) execute all or part of each embodiment the method for the present invention.
And storage medium above-mentioned includes: that movable storage device, ROM, RAM, magnetic or disk etc. are various can store program code
Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of coding and decoding processing method, which is characterized in that the described method includes:
First terminal negotiates codec type by the network equipment and second terminal；The first terminal and the second terminal
In the first network belonging to the network equipment；
When negotiation result determines that the first codec type of selection is communicated, the first terminal compiles solution using described first
Code and is communicated by the network equipment with the second terminal device type；
Wherein, the first terminal and the second terminal support at least two including first codec type
Codec type；At least one codec type for including at least two codec type is that the network is set
The standby codec type supported.
2. the method according to claim 1, wherein when first codec type is the network equipment
When the codec type that do not support, at least two codec type include except first codec type with
Outer at least one codec type is the codec type that the network equipment is supported；
The method also includes: when the first terminal switches to the second network by the first network, obtain described second
Second codec type of network support；
Report second codec type to the network equipment.
3. a kind of coding and decoding processing method, which is characterized in that the described method includes:
Codec type is negotiated by the network equipment and second terminal based on first terminal, the network equipment record negotiates knot
Fruit；In the first terminal and the second terminal first network belonging to the network equipment；
When negotiation result determines that the first codec type of selection is communicated and the network equipment does not support described first to compile
When decoder type, the network equipment supports the first terminal using first codec type and described second eventually
End communication；
Wherein, the first terminal and the second terminal support at least two including first codec type
Codec type, and at least one codec type for including at least two codec type is the network
The codec type that equipment is supported.
4. according to the method described in claim 3, it is characterized in that, the method also includes: based on the first terminal by institute
It states first network and switches to the second network, the network equipment obtains the second codec type that the first terminal reports；
The network equipment is based on second codec type and the second terminal negotiates codec type, to keep
The communication of the first terminal and the second terminal.
5. according to the method described in claim 4, it is characterized in that, when second codec type is the network equipment
When the codec type of support, the network equipment is based on second codec type and the second terminal negotiates to compile
Decoder type, to keep the communication of the first terminal and the second terminal, comprising:
The network equipment and the second terminal negotiate codec type, select the network equipment branch based on negotiation result
The third codec type held；
When second codec type and when the third codec type difference, the network equipment is based on described the
Two codecs and the third codec are sent to institute after carrying out encoding and decoding processing to the communication data of the first terminal
State second terminal, and based on second codec and the third codec to the communication data of the second terminal
The first terminal is sent to after carrying out encoding and decoding processing.
6. a kind of terminal, which is characterized in that the terminal includes: the first negotiation element and the first communication unit；Wherein,
First negotiation element, for negotiating codec type by the network equipment and other terminals；The terminal and institute
It states in other terminals first network belonging to the network equipment；
First communication unit, the negotiation result for obtaining when first negotiation element determine the first codec of selection
When type is communicated, communicated using first codec type and by the network equipment with other described terminals；
Wherein, the terminal and other described terminals support at least two including first codec type to compile solution
Code device type；At least one codec type for including at least two codec type is the network equipment branch
The codec type held.
7. terminal according to claim 6, which is characterized in that when first codec type is the network equipment
When the codec type that do not support, at least two codec type include except first codec type with
Outer at least one codec type is the codec type that the network equipment is supported；First communication unit, also
For obtaining the second encoding and decoding of second network support when the terminal switches to the second network by the first network
Device type；Report second codec type to the network equipment.
8. a kind of network equipment, which is characterized in that the network equipment includes: acquiring unit and the second communication unit；Wherein,
The acquiring unit, for negotiating codec type, record by the network equipment and second terminal based on first terminal
Negotiation result；In the first terminal and the second terminal first network belonging to the network equipment；
Second communication unit, for determining the first codec type of selection when the negotiation result of acquiring unit record
It is communicated and when the network device itself does not support first codec type, the first terminal is supported to use
First codec type is communicated with the second terminal；
Wherein, the first terminal and the second terminal support at least two including first codec type
Codec type, and at least one codec type for including at least two codec type is the network
The codec type that equipment is supported.
9. the network equipment according to claim 8, which is characterized in that the network equipment further includes the second negotiation element；
Second communication unit is also used to switch to the second network by the first network based on the first terminal, obtain
The second codec type that the first terminal reports；
Second negotiation element, second codec type for being obtained based on second communication unit with it is described
Second terminal negotiates codec type, to keep the communication of the first terminal and the second terminal.
10. the network equipment according to claim 9, which is characterized in that second negotiation element, for working as described second
When codec type is the codec type that the network device itself is supported, negotiate codec with the second terminal
Type, the third codec type for selecting the network equipment to support based on negotiation result；
Second communication unit is used for when second codec type and the third codec type difference,
Encoding and decoding processing is carried out to the communication data of the first terminal based on second codec and the third codec
After be sent to the second terminal, and based on second codec and the third codec to the second terminal
Communication data carry out encoding and decoding processing after be sent to the first terminal.
11. a kind of computer storage medium, is stored thereon with computer program, which is characterized in that the program is executed by processor
The step of Shi Shixian coding and decoding processing method of any of claims 1 or 2.
12. a kind of computer storage medium, is stored thereon with computer program, which is characterized in that the program is executed by processor
The step of Shi Shixian claim 3 to 5 described in any item coding and decoding processing methods.
13. a kind of terminal including memory, processor and stores the computer journey that can be run on a memory and on a processor
Sequence, which is characterized in that the processor realizes coding and decoding processing method of any of claims 1 or 2 when executing described program
Step.
14. a kind of network equipment including memory, processor and stores the calculating that can be run on a memory and on a processor
Machine program, which is characterized in that the processor realizes the described in any item encoding and decoding of claim 3 to 5 when executing described program
The step of processing method.
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