CN101409934B - Method and apparatus for processing signaling stream between application platform and protocol stack - Google Patents
Method and apparatus for processing signaling stream between application platform and protocol stack Download PDFInfo
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Abstract
The invention discloses a method for processing a signaling flow between application platforms and a protocol stack, and a device thereof. The method comprises the following steps: a signaling channel is established between each application platform and the protocol stack, and the protocol stack stores the relation between the ID of each application platform and the signaling channel; the protocol stack performs protocol analysis on the signaling received from each application platform so as to analyze the ID added to the signaling by the application platform and the serial number of the signaling, record the ID and the serial number, and process or send the signaling to a corresponding network; and the protocol stack adds the signaling which is processed and needs to be replied or the signaling which is received in the network, processed and replied, to the recorded ID and the recorded serial number, and replies the signaling to the application platform corresponding to the ID according to the corresponding relation between the recorded signaling channel and the ID of the application platform. In the method, the corresponding relation based on the ID and the serial number is established between the protocol stack and each application platform, thus realizing signaling interaction between a plurality of application platforms and the protocol stack, and improving the service efficiency of the protocol stack.
Description
Technical field
The present invention relates to communication technical field, be meant the method and apparatus that signaling flow is handled between a kind of application platform and the protocol stack especially.
Background technology
In mobile communication terminal, the initiation of miscellaneous service all need send corresponding instruction to protocol stack by application platform, simultaneously protocol stack also need will instruction practice condition and some other state information report give application platform.These all are to finish by the Signalling exchange between application platform and the protocol stack.For example: smart mobile phone can be used as application platform and handles miscellaneous service, as speech business, data service etc., finish the miscellaneous service processing capacity, the protocol stack then miscellaneous service of self-application platform initiation in the future carries out corresponding protocol processing, can pass through GSM as speech business, CDMA, WiMAX, multiple voice access technology such as TDSCDMA is linked in the network, finish the signaling flow of eating dishes without rice or wine with application platform, the processing of voice flow, data service for application platform, protocol stack can pass through GPRS by the Signalling exchange between the application platform, 802 technology such as grouping such as grade are finished the access between application platform and the corresponding network.
Along with mobile communication technology by development and the evolution of the second generation to third generation system, the increase of 3G network air interface bandwidth makes based on the business of higher rate and uses the necessary environment that development has been arranged.The data value-added service that portable terminal provides also brings development in pluralism.The 3G mobile communication terminal supports the concurrent characteristics of many interfaces multi-service also to become the shining point that it surmounts 2G portable terminal attraction user.3G technology has brought the concurrent characteristics of many interfaces multi-service to mobile communication terminal, even concerning single MMI, also can realize multi-service between application platform and the protocol stack, the user also can dial voice call on one side, do PS data service dialing on one side, as shown in Figure 1, the AT parsing module is realized the multi-protocols processing.
Signaling flow between application platform and the protocol stack is no longer single is limited in as shown in Figure 1 man-machine interface (MMI, Man-Machine interface) and between the protocol stack, when MMI carries out business, the user also can carry out other business by external interface, this moment, multi-channel A T stream will occur simultaneously, as shown in Figure 2, but the concurrent increase that also thereupon brings application controls plane signaling flow complexity of many interfaces multi-service.
AT instruction is the signaling format between the most widely used application platform and the protocol stack in mobile communication terminal at present.Send the AT instruction by application platform, protocol stack carries out dissection process and response to the instruction that receives, can realize user terminal (UE, UserEquipment) control and mutual with Network are as function setting, calling, note, telephone directory, data service, supplementary service etc.The AT instruction that application platform sends to protocol stack can be divided into three kinds of execution command, query statement and help command; And sending to the object code of application platform, protocol stack can be divided into final result code (Final Result Code, abbreviate FRC as), intermediate object program code (Intermediate Result Code, abbreviate IRC as) and active object code (Unsolicited Result Code abbreviates URC as) three kinds.FRC is used to indicate whether run succeeded (response results that is the AT instruction) of AT instruction, uses " OK " or " ERROR " expression usually, and protocol stack must use FRC to make response to the AT instruction request of using platform.IRC and URC instruction then is in communication process, initiatively reports application platform about some state variation or incident that protocol stack, ancillary equipment or network side took place by protocol stack.
Between present application platform and the protocol stack in the processing procedure of signaling flow, the AT instruction stream source of protocol stack is single, the fixing application platform that comes from, and AT instruction adopts in an application platform and the protocol stack mutual between a kind of protocol process module, or in application platform and the protocol stack between a plurality of protocol process module alternately.When application platform is intelligent terminal, can connect other application platform by interface, as connect another intelligent terminal or palmtop PC, individual PC etc., during the pairing protocol stack of shared one of them application platform, there is following defective in this processing method:
Owing to there are a plurality of different application platforms, as MMI, pc client etc., protocol stack can't be distinguished the signaling flow of different application platforms.
When a plurality of service concurrences (concurrent) as speech business and data service, because protocol stack is handled the required asynchronism(-nization) of different business, the response of returning may occur out of order, as shown in Figure 3, this moment, application platform can't be distinguished this response correspondence is the signaling of which kind of business of sending of which application platform.
Summary of the invention
In view of this, the invention reside in provides the method and apparatus that signaling flow is handled between a kind of application platform and the protocol stack, can't distinguish the signaling flow and the professional problem of different application platforms to solve above-mentioned protocol stack.
For addressing the above problem, the invention provides the method that signaling flow is handled between a kind of application platform and the protocol stack,
Set up signalling path between each application platform and the protocol stack, protocol stack is stored the relation of the ID and the signalling path of each application platform;
Protocol stack will receive from the signaling of each application platform and carry out protocol analysis, parse the ID that application platform adds and the sequence number of this signaling in signaling, write down the sequence number of described ID and this signaling, and signaling is handled or is sent in the corresponding network;
The signaling that will reply after protocol stack will be handled or receive network processes after the signaling of replying, corresponding relation according to record signalling path and application platform ID, signaling is added the described ID of record and the sequence number of this signaling, return back to the corresponding application platform of ID.
Preferably, the signaling that described protocol stack will be replied after handling or receive network processes after the signaling of replying when being broadcast signaling, in described broadcast signaling, add the broadcast signaling sign of corresponding all application platforms and send.
Preferably, also comprise: described application platform adds function platform sign in the signaling that sends, described protocol stack writes down described function platform sign, and add in the signaling of replying, after described application platform receives described signaling, be sent to the corresponding business program module according to described function platform sign.
Preferably, also comprise: between described protocol stack and each application platform, also be connected with the signaling flow distribution module, be used to store the relation of the ID and the signalling path of described each application platform, the signaling flow of each application platform is sent to described protocol stack, send application platform ID in the signaling according to described protocol stack, described signaling is returned back to the application platform of ID correspondence.
The present invention also provides the device that signaling flow is handled between a kind of application platform and the protocol stack, comprising: at least two application platform connection protocol processing units;
Described application platform comprises:
Signaling unit is used to connect described protocol stack and sets up signalling path, and obtains the ID of application platform ID unit generation and the sequence number that the sequence number unit generates, and joins in the signaling of sending, and receives the signaling from described protocol stack,
Application platform ID unit is used to store the ID of described application platform correspondence;
The sequence number unit is used to every signaling formation sequence that described signaling unit sends number;
Described protocol stack comprises:
Identify unit is used for the ID of storage protocol processing unit acquisition and sets up the corresponding relation of signalling path and the sequence number that parses;
Protocol processing unit, be used to connect described application platform and set up signalling path, obtain connect the ID of application platform and be stored in the identify unit, resolve the ID that described application platform adds and the sequence number of this signaling in signaling, and be recorded in the described identify unit, and signaling carried out signaling process, or be sent to after the protocol processes in the corresponding network; Receive the signaling of automatic network, carry out protocol processes after, or the signaling that will reply after self is handled is added in described ID and the sequence number that writes down in the described identify unit, returns back to the corresponding application platform of ID.
Preferably, also comprise broadcast module in the described protocol processing unit, be used to judge the signaling that to reply after self handles, or come in the automatic network, carry out after signaling after the protocol processes is broadcast signaling, in described broadcast signaling, add the broadcast signaling sign of corresponding all application platforms and send.
Preferably, also comprise: described application platform also comprises:
Function platform identify unit is used for the corresponding function platform sign of storage and generation and business procedure module;
Described signaling unit adds the pairing function platform sign of this signaling in the process that sends signaling; Described protocol processing unit parses function platform sign and the record in the signaling, and joins in the signaling that replies to application platform, and described signaling unit is sent to the corresponding business program module according to the function platform sign that described signaling parses with signaling.
Preferably, also comprise: between described protocol stack and each application platform, also be connected with the signaling flow distribution module, be used to store the ID of described each application platform and the corresponding relation of signalling path, the signaling flow of each application platform is sent to described protocol stack, and the signaling that described protocol stack is sent returns back to the application platform of ID correspondence.
The present invention is by setting up the corresponding relation based on ID and sequence number between protocol stack and each application platform, realize that the signaling data between a plurality of application platforms and the protocol stack is mutual, improved the application platform expansion capacity, by function application platform ID, can be convenient to single application platform and use a plurality of professional whiles, each business procedure module is convenient to carry out Signalling exchange by protocol stack; On every signaling all correspondence sequence number is arranged owing to adopted sequence number to indicate different signalings, therefore can tell response the signaling correspondence before the corresponding relation of the signaling that sent.Send a plurality of signalings continuously for application platform, can identify a plurality of signalings and the corresponding relation that sends signaling of answer, avoid the out of order phenomenon between signaling.。
Fig. 1 is the schematic diagram of an application platform and a protocol stack Signalling exchange;
Fig. 2 is the schematic diagram of the shared protocol stack Signalling exchange of a plurality of application platforms;
Description of drawings
Fig. 3 is the schematic diagram that the shared protocol stack Signalling exchange of a plurality of application platforms produces the sequential mistake;
Fig. 4 is the schematic diagram that adds ID and sequence number in the signaling flow;
Fig. 5 is the schematic diagram of ID numbering;
Fig. 6 is the flow chart of method embodiment;
Fig. 7 is the schematic diagram that protocol stack and application platform are carried out Signalling exchange;
Fig. 8 is the schematic diagram of signaling flow between signaling flow distribution module retransmission protocol stack, the application platform;
Fig. 9 is the structure chart of device embodiment.
For clearly demonstrating the scheme among the present invention, provide preferred embodiment below and be described with reference to the accompanying drawings.
Embodiment
For realizing the shared protocol stack of a plurality of application platforms, when carrying out the AT Signalling exchange between each application platform and this protocol stack, need be in the AT signaling flow additional application ID and sequence number information.As accompanying drawing 4, use ID and sequence number in the head interpolation of each bar AT signaling.
Using ID distributes according to the principle of accompanying drawing 5, table 1 has provided an example: use a byte (octet) to deposit ID, high 4 and low 4 of ID identifies as the I and II application class respectively, and high 4 are used to identify the logic platform, such as MMI, external USB interface or the like; Low 4 function application that are used for identifying the certain logic platform just can be used as independently function platform such as the mobile phone mail function among the MMI.Following table 1 provides the distribution of ID value in detail, and protocol stack writes down the sequence number of each application platform ID and different AT signalings, certainly, can adjust ID according to the actual conditions of business.
Table 1
ID distributes by I and II, and application platform is example with the portable terminal, just can fix when one-level is identified at the mobile terminal device designing for manufacturing---and the AT signaling flow is from the MMI platform or from the external platform of USB mouth, or other logic platforms; Secondary is designated pairing each function platform sign of logic platform, and it is concurrent a plurality of when professional to be used for application platform, uses this function platform sign, and application program can be handled the AT classification fast and accurately.Association is according to such two-stage allocation strategy, and when adding functional module, protocol stack sofeware need not change, and the degree of coupling between each module of mobile terminal software reduces greatly.
Give the correct time in the IRC/URC active, add the broadcast signaling sign and the transmission of corresponding all application platforms in described broadcast signaling, the ID value is 0xFF, represents that this AT signaling need be broadcast to all application platforms.Portable terminal for example is provided simultaneously and passes through the portable terminal that the external PC of USB holds software, when receiving the phone incoming call indication of network, application ID is that the URC of 0xFF will report portable terminal and PC end software simultaneously, and the user just can select portable terminal or PC end software to answer this phone.
Provide the handling process that preferred embodiment describes application platform in detail below, referring to Fig. 5, Fig. 5 is the flow chart of the inventive method embodiment, comprising:
Step 11: set up signalling path between each application platform and the protocol stack, protocol stack writes down the relation of the ID and the signalling path of each application platform;
Protocol stack can be various forms of adapters, comprise various communications protocols, as the parsing module of GSM, WCDMA, TDSCDMA, GPRS, WiMAX, 802 agreements and/or Bluetooth protocol, the parsing, data that each parsing module can be realized signaling mutual between network and application platform.
Protocol stack constantly scans, and after finding have application platform to insert, can set up signalling path with this application platform, and write down the ID of this application platform, if this application platform does not have ID, can initiatively distribute an ID;
For example: comprise application platform and protocol stack in the A intelligent terminal, when the A terminal connects the PC computer by the usb data line, behind bluetooth connection B intelligent terminal, the PC computer can be set up signaling with the protocol stack in the A intelligent terminal with the application platform in the B intelligent terminal and be connected, the ID of the application platform in A intelligent terminal record PC computer and the B intelligent terminal;
Step 12: protocol stack will receive from the signaling of each application platform and carry out protocol analysis, and be sent in the corresponding network;
Protocol stack will receive from the signaling of each application platform and carry out protocol analysis, parse the ID that application platform adds in signaling and the sequence number of this signaling, write down described ID and sequence number, and signaling is handled or is sent in the corresponding network;
For example, the application platform of PC computer is initiated 802.11 wireless network traffics by the A intelligent terminal, and the application platform of B intelligent terminal is initiated the CDMA telephone service, after the protocol stack in the A intelligent terminal is received the signaling request, carry out signaling by the corresponding protocol module and resolve, be sent in the corresponding network.Certainly, for some signalings, protocol stack self also can be handled, and makes the signaling that needs answer.
Step 13: protocol stack receives the signaling of automatic network, according to the corresponding relation of signalling path and application platform ID, will receive that signaling returns back to the application corresponding platform.
If the signaling that protocol stack self is handled is then directly replied and is obtained the application corresponding platform.
The signaling that will reply after protocol stack will be handled or receive network processes after the signaling of replying, according to the corresponding relation of record signalling path and application platform ID, signaling is added the described ID and the sequence number of record, return back to the corresponding application platform of ID.
In the above embodiments, each application platform also can be sent to the corresponding service program module with what receive to signaling according to function platform ID, for example, the PC computer is initiated IP telephone service and the instant messaging in the wireless network traffic, the application platform of PC computer can add the function platform sign of these two business in signaling, receive the signaling of heterogeneous networks answer when the PC computer after, can signaling be returned back to the corresponding business program module according to function platform sign.But if broadcast, for example: URC message, protocol stack will be broadcast to all AT signalling paths.The schematic diagram of its Signalling exchange as shown in Figure 6.
In the above embodiments,,, adjust or when deleting, protocol stack also must carry out corresponding modify, be unfavorable for the module maintenance application platform and agreement station in like this along with the expansion of application platform kind because that application platform may exist is multiple.
For this reason, can set up the agreement mapping function in each application platform and the protocol stack, between each application platform and protocol stack, set up a signaling flow distribution module, it is the distribution module among Fig. 7, set up a unique signaling flow passage between signaling flow distribution module and the protocol stack, the signaling flow distribution module is set up a signalling path with each application platform again.The AT demand signalling of each all application platforms all sends to protocol stack through distribution module; AT parsing module in the protocol stack at first writes down application platform ID and sequence number, finish corresponding actions after, application platform ID, the sequence number of preserving responded with AT return to AT signaling flow distribution module in the lump; Distribution module returns to application platform according to the signalling path of the first order application platform ID that uses ID by correspondence with the AT signaling again; Application platform returns to functional module according to the second level function platform ID that uses ID with this AT signaling again; Functional module judges whether to the current AT response of waiting for according to the AT sequence number again and finishes corresponding actions.The schematic diagram of its Signalling exchange as shown in Figure 7.
The URC that protocol stack reports arrives each application platform through distribution module.Protocol stack separates with application platform like this, and different communication terminals no longer needs protocol stack to make amendment when carrying out the function expansion, as long as revise the signaling flow distribution module; Utilize application ID provided by the invention, AT sequence number mechanism simultaneously, support the concurrent application platform software design of multi-service simple more, reliable.
Describe method of the present invention above in detail, can adopt the device of various ways to realize, provide preferred embodiment below and describe in detail, referring to Fig. 9, comprising: plural at least application platform connection protocol processing unit for method of the present invention;
Described application platform comprises:
Signaling unit is used to connect described protocol stack and sets up signalling path, and obtains the ID of application platform ID unit generation and the sequence number that the sequence number unit generates, and joins in the signaling of sending, and receives the signaling from described protocol stack,
Application platform ID unit is used to store the ID of described application platform correspondence;
The sequence number unit is used to every signaling formation sequence that described signaling unit sends number;
Described protocol stack comprises:
Identify unit is used for the ID of storage protocol processing unit acquisition and sets up the corresponding relation of signalling path and the sequence number that parses;
Protocol processing unit, be used to connect described application platform and set up signalling path, obtain connect the ID of application platform and be stored in the identify unit, resolve the ID that described application platform adds and the sequence number of this signaling in signaling, and be recorded in the described identify unit, and signaling carried out signaling process, or be sent to after the protocol processes in the corresponding network; Receive the signaling of automatic network, carry out protocol processes after, or the signaling that will reply after self is handled is added in described ID and the sequence number that writes down in the described identify unit, returns back to the corresponding application platform of ID.
Preferably, also comprise broadcast module in the described protocol processing unit, be used to judge the signaling that to reply after self handles, or come in the automatic network, carry out after signaling after the protocol processes is broadcast signaling, in described broadcast signaling, add the broadcast signaling sign of corresponding all application platforms and send.
Preferably, also comprise: described application platform also comprises:
Function platform identify unit is used for the corresponding function platform sign of storage and generation and business procedure module;
Described signaling unit adds the pairing function platform sign of this signaling in the process that sends signaling; Described protocol processing unit parses function platform sign and the record in the signaling, and joins in the signaling that replies to application platform, and described signaling unit is sent to the corresponding business program module according to the function platform sign that described signaling parses with signaling.
Preferably, also comprise: between described protocol stack and each application platform, also be connected with the signaling flow distribution module, be used to store the ID of described each application platform and the corresponding relation of signalling path, the signaling flow of each application platform is sent to described protocol stack, described protocol stack is sent the application platform that signaling returns back to the ID correspondence.
Preferably, the agreement of described protocol processing unit processing is GSM, WCDMA, TDSCDMA, GPRS, WiMAX, 802 agreements and/or Bluetooth protocol.
The present invention is by setting up the corresponding relation based on ID and sequence number between protocol stack and each application platform, realize that the signaling data between a plurality of application platforms and the protocol stack is mutual, improved the application platform expansion capacity, by function application platform ID, can be convenient to single application platform and use a plurality of professional whiles, each business procedure module is convenient to carry out Signalling exchange by protocol stack; On every signaling all correspondence sequence number is arranged owing to adopted sequence number to indicate different signalings, therefore can tell response the signaling correspondence before the corresponding relation of the signaling that sent.Send a plurality of signalings continuously for application platform, can identify a plurality of signalings and the corresponding relation that sends signaling of answer, avoid the out of order phenomenon between signaling.
For the method and apparatus of being set forth among each embodiment of the present invention, within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method that signaling flow is handled between application platform and the protocol stack is characterized in that,
Set up signalling path between each application platform and the protocol stack, protocol stack is stored the relation of the ID and the signalling path of each application platform;
Protocol stack will receive from the signaling of each application platform and carry out protocol analysis, parse the ID that application platform adds and the sequence number of this signaling in signaling, write down the sequence number of described ID and this signaling, and signaling is handled or is sent in the corresponding network;
The signaling that will reply after protocol stack will be handled or receive network processes after the signaling of replying, corresponding relation according to record signalling path and application platform ID, signaling is added the described ID of record and the sequence number of this signaling, return back to the corresponding application platform of ID.
2. method according to claim 1, it is characterized in that, the signaling that described protocol stack will be replied after handling or receive network processes after the signaling of replying when being broadcast signaling, in described broadcast signaling, add the broadcast signaling sign of corresponding all application platforms and send.
3. method according to claim 1, it is characterized in that, also comprise: described application platform adds function platform sign in the signaling that sends, described protocol stack writes down described function platform sign, and add in the signaling of replying, after described application platform receives described signaling, be sent to the corresponding business program module according to described function platform sign.
4. method according to claim 1, it is characterized in that, also comprise: between described protocol stack and each application platform, also be connected with the signaling flow distribution module, be used to store the relation of the ID and the signalling path of described each application platform, the signaling flow of each application platform is sent to described protocol stack, send application platform ID in the signaling according to described protocol stack, described signaling is returned back to the application platform of ID correspondence.
5. the device that signaling flow is handled between application platform and the protocol stack is characterized in that, comprising: at least two application platform connection protocol processing units;
Described application platform comprises:
Signaling unit is used to connect described protocol stack and sets up signalling path, and obtains the ID of application platform ID unit generation and the sequence number that the sequence number unit generates, and joins in the signaling of sending, and receives the signaling from described protocol stack,
Application platform ID unit is used to store the ID of described application platform correspondence;
The sequence number unit is used to every signaling formation sequence that described signaling unit sends number;
Described protocol stack comprises:
Identify unit is used for the ID of storage protocol processing unit acquisition and sets up the corresponding relation of signalling path and the sequence number that parses;
Protocol processing unit, be used to connect described application platform and set up signalling path, obtain connect the ID of application platform and be stored in the identify unit, resolve the ID that described application platform adds and the sequence number of this signaling in signaling, and be recorded in the described identify unit, and signaling carried out signaling process, or be sent to after the protocol processes in the corresponding network; Receive the signaling of automatic network, carry out protocol processes after, or the signaling that will reply after self is handled is added in described ID and the sequence number that writes down in the described identify unit, returns back to the corresponding application platform of ID.
6. device according to claim 5, it is characterized in that, also comprise broadcast module in the described protocol processing unit, be used to judge the signaling that to reply after self handles, or come in the automatic network, carry out after signaling after the protocol processes is broadcast signaling, in described broadcast signaling, add the broadcast signaling sign of corresponding all application platforms and send.
7. device according to claim 5 is characterized in that, also comprises: described application platform also comprises:
Function platform identify unit is used for the corresponding function platform sign of storage and generation and business procedure module;
Described signaling unit adds the pairing function platform sign of this signaling in the process that sends signaling; Described protocol processing unit parses function platform sign and the record in the signaling, and joins in the signaling that replies to application platform, and described signaling unit is sent to the corresponding business program module according to the function platform sign that described signaling parses with signaling.
8. device according to claim 5, it is characterized in that, also comprise: between described protocol stack and each application platform, also be connected with the signaling flow distribution module, be used to store the ID of described each application platform and the corresponding relation of signalling path, the signaling flow of each application platform is sent to described protocol stack, and the signaling that described protocol stack is sent returns back to the application platform of ID correspondence.
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