CN101964996A - Method and devices for optimizing wireless data transmission - Google Patents
Method and devices for optimizing wireless data transmission Download PDFInfo
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- CN101964996A CN101964996A CN201010001837XA CN201010001837A CN101964996A CN 101964996 A CN101964996 A CN 101964996A CN 201010001837X A CN201010001837X A CN 201010001837XA CN 201010001837 A CN201010001837 A CN 201010001837A CN 101964996 A CN101964996 A CN 101964996A
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Abstract
The embodiment of the invention relates to a method for optimizing wireless data transmission in the field of communication, which comprises the following steps of: receiving data and acquiring a wireless data type of the received data; and performing wireless transmission by adopting quality of service (QoS) corresponding to the wireless data type of the data. The embodiment of the invention also provides corresponding devices for optimizing wireless data transmission, namely a wireless modem and terminal equipment. The embodiment of the invention has the advantages of distinguishing different types of the data, adopting different transmission processing modes, guaranteeing the transmission quality of the data with high requirements on time delay and error rate in the data transmitting process, and enhancing the user experience.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and device of optimizing wireless data transmission.
Background technology
Along with the wireless technology development, especially evolution data business (EVDO, Evolution DataOnly) technology, High Speed Packet Access (HSPA, High Speed Packet Access) application, radio modem speed is greatly improved, thereby radio modem is used more and more widely.The wireless modem processor function is also very powerful, processors such as ARM9, ARM 11, and processing speed surpasses 100MHz, and the introducing of multiprocessor allows radio modem can deal with the task of various complexity.Portable terminal (MT, Mobile Termination) is a kind of radio modem.
The inventor finds that in realizing process of the present invention there is following shortcoming in existing MT at least as a kind of radio modem:
Can't perception upper-layer service content, therefore be difficult to adopt better processing mode according to different business, for example, use radio modem to surf the web and video playback, it is machine-processed as broad as long that radio modem is handled.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus system of optimizing wireless data transmission, can distinguish the dissimilar of data, adopts different transmission process modes.
The embodiment of the invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of method of optimizing wireless data transmission, comprising:
Radio modem receives data, and knows the wireless data type of the data that received;
Wireless data type according to described data adopts the service quality QoS corresponding with described type to carry out wireless transmission.
The embodiment of the invention provides a kind of radio modem, comprising:
The protocol stack processing module is used for receiving and sending data;
Professional sensing module is used to know the wireless data type of the data that received;
Dispatching control module is used for the wireless data type of the data known according to described professional sensing module, and control protocol stack processing module adopts the service quality QoS up transmission described data corresponding with described type.
The embodiment of the invention provides a kind of terminal equipment, comprising:
Analysis module is used to analyze the wireless data type of data;
Sending module is used to send data, carries the wireless data type of the data of described analysis module analysis in sending to the data of radio modem.
The technical scheme that is provided by the invention described above embodiment as can be seen, the embodiment of the invention has realized distinguishing the dissimilar of data, adopt different transmission process modes, guaranteed in the data transmission procedure transmission quality of time delay, the demanding data of the error rate has been strengthened user experience.
Description of drawings
Fig. 1 is a kind of method flow diagram of optimizing wireless data transmission of the embodiment of the invention;
The data that Fig. 2 is received for embodiment of the invention analysis are known the method flow diagram of the wireless data type of the data that received;
The method flow diagram that Fig. 3 dispatches for the one embodiment of the invention scheduler module;
Fig. 4 is receiving scheduling indication reprocessing flow chart for the one embodiment of the invention dispatching control module;
Fig. 5 is receiving scheduling indication reprocessing flow chart for further embodiment of this invention dispatching control module;
Fig. 6 is an one embodiment of the invention wireless modem devices structural representation;
Fig. 7 is a professional sensing module structural representation in the embodiment of the invention wireless modem devices;
Fig. 8 is a dispatching control module structural representation in the embodiment of the invention wireless modem devices;
Fig. 9 is an embodiment of the invention terminal equipment structural representation;
Figure 10 is a sending module structural representation in the embodiment of the invention terminal equipment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, be understandable that described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of method of optimizing wireless data transmission, and as shown in fig. 1, this method comprises the steps:
Step 10: radio modem receives data, and knows the wireless data type of the data that received;
Step 11: the wireless data type according to described data adopts the service quality (QoS, Quality of Service) corresponding with described type to carry out wireless transmission.
The present embodiment executive agent is radio modem, for example MT.
In step 10, a kind of embodiment is described knows that the method for the wireless data type of the data that received comprises:
1) analyzes the data that received, know the wireless data type of the data that received;
For example, data and the predetermined radio data type with described reception compares; The data map that makes described reception for analyzing the data that received, is known the concrete grammar of the type of the data that received in described predetermined radio data type, subsequent embodiment will be introduced in detail.
Present type of service roughly can be divided into 4 types: conversation class, stream class, interactive class and background classes, the method that pre-determines the wireless data type that an embodiment of the present invention provides comprises: because conversation class, stream class to the delay requirement height, interactive class and background classes are relatively low to delay requirement, then making conversation class and stream class is one type, as be defined as the AF type, interactive class and background classes are classified as the BE type.This AF and BE type are embodiment of the invention predetermined radio data type.The priority difference of different radio data type, can preestablish the priority of different radio data type, the wireless data type corresponding priorities that qos requirements such as operated by rotary motion time delay, the error rate are high is higher, and for example, the priority that above-mentioned AF type is set is higher than the priority of BE type.Each wireless data type can corresponding different wireless parameter, promptly corresponding different QoS.Optionally, each wireless data type can be asked different wireless propagation paths, for WCDMA, and the wireless propagation path that different PDP Context is corresponding different.
Be understandable that, in the practical application, can be with the session class, the stream class, interactive class and background classes are separately as a kind of wireless data type, perhaps according to actual needs, determine more wireless data type, with the Transmission Control Protocol is example, comprise the TCP business datum, TCP signaling etc., and the TCP business datum can be divided into HTML (Hypertext Markup Language) (HTTP, HyperText Transfer Protocol), file transfer protocol (FTP) (FTP, File Transfer Protocol), POP3, Simple Mail Transfer protocol (SMTP, Simple Mail Transfer Protocol), internet control message protocol (ICMP, InternetControl Message Protocol), SSH, Telnet, domain name system (DNS, Domain NameSystem), RTP (RTP, Real-time Transfer Protocol) categorical data such as, the different agreement that Transmission Control Protocol is comprised is divided into a plurality of wireless data types.
Or
2) the wireless data type of the data that received of receiving terminal apparatus (TE, Terminal Equipment) analysis and transmission.
The described terminal equipment of present embodiment receives the equipment of data for data are provided to radio modem or by modulator-demodulator, specifically can be PC, perhaps other equipment.
For example, according to the differentiated services code points (DSCP in the data of described TE transmission, Differentiated Services Code Point) sign is known the type of described data, the type of data of method analyze to(for) TE can be analyzed the method for data type with reference to radio modem, is not limited thereto certainly.Communicate by letter with MT by modes such as AT, other and example are together.
Alternatively, TE can and radio modem between adopt the AT communication mode to communicate, the wireless data type notification that TE is analyzed arrives radio modem, usually can use the DSCP sign, and the definition for DSCP between TE and radio modem is reached an agreement, so MT can be known the wireless data type of data according to the sign of the DSCP in the user data.
In step 11, the described wireless data type employing QoS corresponding with described type according to described data of a kind of embodiment carries out wireless transmission and comprises:
The data different radio carrying to the different radio data type; Or
To the data definition different priorities of different radio data type, in a carrying, user data is carried out wireless transmission according to different priorities.
For example: for the LTE network, browsing page can use default bearer, and video data stream can be used dedicated bearer.
Step 11 also comprises: obtain wireless resource information from network side, be the data application of different priorities or discharge Radio Resource according to described wireless resource information.Just be different types of data application or release Radio Resource.
Alternatively, in step 11, carry out wireless transmission before, by introduce IP or on agreement, comprise IP, TCP, UDP, HTTP, RTP, FTP etc., realize increased functionality, for example, by introducing Transmission Control Protocol, increase the SACK support function, or make tcp data separate with signaling, signaling is with high priority transfer, or optimization TCP transmission parameter, accelerates replying of downlink data transmission etc., be understandable that, also can increase above-mentioned functions simultaneously.Again for example, realize increasing compression function etc. by introducing HTTP.
The embodiment of the invention has realized differentiation wireless data type, adopt different Qos to transmit at different wireless data types, brought better radio modem to experience to the user, for example: when network congestion, real time business is is preferentially received and dispatched, less time delay.
The data that analysis received that one embodiment of the invention provides, know the data that received the wireless data type method as shown in Figure 2, present embodiment is that example describes with two kinds of wireless data types (AF type and BE type), in the embodiment of the invention, AF class respective session class, stream class, be generally real time business such as video, audio frequency, simultaneously the TCP signaling also be classified as the AF business; The corresponding interactive class of BE class, background classes, i.e. business outside the AF class.Specifically comprise the steps:
Step 20:, judge whether current data packet is point to point protocol (PPP, Point to Point Protocol) packet according to current transmission mode;
Described current transmission mode for example can be the IP transmission mode, or the PPP transmission mode;
If the PPP information bag, then execution in step 21; Otherwise execution in step 22;
Step 21: the PPP information bag is analyzed;
This is analyzed the PPP information bag, mainly is to parse wherein IP bag, and execution in step 22 afterwards;
Step 22: the IP packet is analyzed;
It mainly is to judge whether the content of this IP packet is the tcp data bag that the IP packet is analyzed, if determine that current data packet is the tcp data bag, then execution in step 23; If non-tcp data such as UDP then can be defined as the BE type;
Step 23: the tcp data bag is analyzed;
Present embodiment is divided into three classes with the tcp data bag: TCP signaling, HTTP packet and other;
If determine that current tcp data bag is the TCP signaling, then can be defined as the AF type;
If current tcp data bag is the HTTP packet, then execution in step 24;
If non-TCP signaling and non-HTTP packet just are other data outside TCP signaling and the HTTP packet, then can be defined as the BE type;
Step 24: the HTTP packet is analyzed;
This analysis to the HTTP packet comprises the content that parses in the HTTP data, several deterministic processes below carrying out according to the content of HTTP packet afterwards.
Step 25: judge whether to start the video/audio business;
If then execution in step 27; If not, execution in step 26 then;
Step 26: judge whether to finish the video/audio business;
If then execution in step 27; If not, execution in step 28 then;
The no sequencing of above-mentioned steps 25 and step 26 can be carried out in the practical application simultaneously, or also can judge whether to finish the video/audio business earlier, if not, then judges whether to start the video/audio business again, and present embodiment only is a kind of specific implementation.
Step 27: notice dispatching control module;
Can simultaneously the current business information that will start or finish be transmitted to dispatching control module, make dispatching control module create or discharge high-priority data and carry, and produce corresponding TFT data service template; Execution in step 28 afterwards;
Step 28: the bearer channel that judges whether to exist high-priority service such as transmission of video/audio frequency;
If not, then be defined as the BE type;
If then execution in step 29;
Step 29: carry out the data type coupling according to traffic flow template TFT (Traffic Flow Template), judge whether to mate with the AF data type;
The corresponding a kind of radio bearer of each TFT, TFT comprises information such as protocol-identifier, far-end IP address, local port number, distal end slogan, if the information of this TFT correspondence and AF data type coupling, then can be defined as the AF data type, data will be by the carrying transmission of TFT correspondence, if there is not the TFT of coupling, then data are by default bearer, and corresponding herein BE carrying is transmitted.
Because the scene that present embodiment is set is two kinds of wireless data types, in the then above-mentioned matching process if with the AF type matching, then be defined as the AF type; Otherwise be defined as the BE type.Can define multiple wireless data type in the practical application, what its medium priority was minimum is the default data type, corresponding default service bearer, other are the high-priority data type, the Data-carrying that the data type of different brackets is corresponding different, except default bearer, other carryings all have corresponding TFT, and packet to be sent is the same by the method that TFT is mapped to different bearer.
In addition, present embodiment is to be that example describes with agreements such as PPP, IP, TCP, HTTP, in the practical application, be not limited thereto, just the described video of present embodiment, audio service can be carried in other agreements, then the present invention program can realize it is analyzed and knows the wireless data type equally, and specific analytical method is the same.
Because the high-priority service that present embodiment is set is video, audio frequency.In the practical application, can increase other high-priority service as required.
The executive agent of above-mentioned steps 20-29 is professional sensing module, and present embodiment has been finished data analysis, knows the process of the wireless data type of data.
It is a kind of after the wireless data type is determined that another embodiment of the present invention provides, the method that scheduler module is dispatched, and flow process comprises the steps: with reference to shown in Fig. 3
Step 30: whether the wireless data type of judging current data is AF;
If then execution in step 31; If not then execution in step 32:
Present embodiment is the top operation that continues, and being still with two kinds of wireless data types is that example describes, and is understandable that, can judge earlier also whether the current data type is the BE type, and present embodiment is not done qualification to this.
Step 31: data are put into AF data queue;
Step 32: data are put into BE data queue;
Step 33: after receiving the scheduling indication, judge whether current AF wireless propagation path is available;
If available, then execution in step 34;
If unavailable, then execution in step 35;
Step 34: with the wireless transmission path of the data in the AF formation by the AF type;
Step 35:AF queuing data is preferential, the wireless transmission path by the BE type together with AF formation and BE formation.
The radio bearer difference of different wireless propagation path correspondences.
Present embodiment above-mentioned steps 30-35 executive agent is a dispatching control module, present embodiment has been finished and has been distinguished different wireless data types and adopt the transmission of different transmission means, comprise and utilize different wireless propagation paths or set different priority, strengthened user experience.
A kind of concrete implementation and operation process of dispatching control module after receiving the scheduling indication comprises the steps: as shown in Figure 4
Step 40: receive AF scheduling indication;
Step 41: business information is recorded TFT;
Described business information comprises protocol-identifier, far-end IP address, local port number, distal end slogan etc., records behind the TFT as the foundation of follow-up data coupling, and the content that this TFT comprises is a prior art, and present embodiment is not done qualification to this.
Step 42: judge whether current AF wireless propagation path is available;
Whether this available comprising: whether the AF wireless propagation path is arranged, or whether the AF transmission path of having set up is effective;
If available, then execution in step 43;
If unavailable, then execution in step 44;
Step 43: with the wireless transmission path of the data in the AF formation by the AF type;
Step 44: initiate the QoS request, application AF wireless propagation path;
This process does not influence the transmission of AF categorical data, in application AF transmission path, the AF categorical data can be adopted the method as step 35 send, and the follow-up AF type service that receives again is again by the successful AF transmission path of application.
The another kind of concrete implementation and operation process of dispatching control module after receiving the scheduling indication comprises the steps: as shown in Figure 5
Step 50: receive AF and finish indication;
Step 51: remove corresponding TFT;
Remove the business information that TFT goes up this AF business of record;
Step 52: judge the current AF business that whether also has other activation;
If have, then execution in step 53;
If do not have, then execution in step 54;
Step 53: keep current AF wireless propagation path;
Step 54: request discharges the AF wireless propagation path.
Present embodiment has been realized in the process that receives AF end indication back release AF wireless propagation path.
From top two embodiment as can be seen, dispatching control module can or discharge resource according to the application of wireless data type after receiving the scheduling indication, this dispatching control module can also be set to TRUE or FALSE by the professional transmission sign of AF after receiving that the AF wireless path is set up or discharging indication.
The embodiment of the invention provides a kind of radio modem, as shown in Figure 6, comprising: protocol stack processing module 60, professional sensing module 61 and dispatching control module 62.
Described protocol stack processing module 60 is used for receiving and sending data; These reception data comprise from terminal equipment reception upstream data with from wireless protocols processing module downlink data receiving.For upstream data, this protocol stack processing module 60 only is delivered to the wireless protocols processing module in the ordinary course of things the data transparency that need receive; Carry out under the increased functionality situation at needs, for example, in the time of need being optimized processing to some agreement, need additionally handle user data, with the Transmission Control Protocol is example, can optimize the TCP parameter, increases the SACK function, the SACK function of this increase can't be discovered for terminal equipment, just increased functionality; Can also increase the special processing function, as compression function etc.
This protocol stack processing module 60 is given professional sensing module 61 with the data notification that receives, and knows the wireless data type by professional sensing module analysis, again analysis result is notified to dispatching control module.
Described professional sensing module 61 is used to know the wireless data type of the data that received; As shown in Figure 7, this business sensing module 61 further comprises:
First knows submodule 611, is used for the data that described protocol stack processing module 60 receives are analyzed, and knows the wireless data type of the data that received, and comprises that data and the predetermined radio data type with described reception compares; The data map that makes described reception is in described predetermined radio data type; And/or
Second knows submodule 612, is used for knowing according to the DSCP sign that the data that described protocol stack processing module 60 receives are carried the wireless data type of described data.
Described dispatching control module 62 is used for the wireless data type of the data known according to described professional sensing module 61, and control protocol stack processing module 60 adopts the service quality QoS up transmission described data corresponding with described type.62 need of this scheduler module are realized the scheduling controlling function in the upstream data process of transmitting, the transmission to upstream data just realizes scheduling controlling, and in the downlink data process of transmitting, only need know the wireless data type of this business sensing module 61 does not need the operation dispatching controlled function.
As shown in Figure 8, this dispatching control module 62 may further include:
Radio Resource application or release submodule 621 are used for obtaining wireless resource information from network side, are the data application of different radio data type or discharge Radio Resource according to described wireless resource information.
The described wireless modem devices of present embodiment can be distinguished the dissimilar of data, adopts different transmission process modes, has guaranteed in the upstream data process of transmitting transmission quality of time delay, the demanding data of the error rate has been strengthened user experience.
Another embodiment of the present invention provides a kind of terminal equipment, as shown in Figure 9, comprising: analysis module 90 and sending module 91;
Described analysis module 90 is used to analyze the wireless data type of data; The method of the wireless data type of these analysis module 90 analysis data repeats no more with reference to the analytical method of radio modem herein.
Described sending module 91 is used to send data, carries the wireless data type of the data of described analysis module 90 analyses in sending to the data of radio modem.This sending module 91 can adopt the AT mode to communicate by letter with radio modem.
As shown in figure 10, this sending module 91 further comprises:
Add submodule 911, be used in the DSCP sign of the data interpolation that sends to radio modem with the wireless data type matching of described data.
The wireless data type that the described terminal equipment of present embodiment can be analyzed data offers radio modem, thereby help wireless modem devices can distinguish the dissimilar of data, adopt different transmission process modes, guaranteed in the upstream data process of transmitting transmission quality of time delay, the demanding data of the error rate has been strengthened user experience.
The described terminal equipment of present embodiment can be communicated by letter with wireless modem devices by TE-MT interface processing module.
In sum, the embodiment of the invention has realized distinguishing the dissimilar of data, adopts different transmission process modes, has guaranteed in the data transmission procedure transmission quality of time delay, the demanding data of the error rate has been strengthened user experience.
One of ordinary skill in the art will appreciate that, realize that all or part of step in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer-readable recording medium, for example read-only memory (being called for short ROM), random access memory (being called for short RAM), disk, CD etc.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a method of optimizing wireless data transmission is characterized in that, comprising:
Radio modem receives data, and knows the wireless data type of the data that received;
Wireless data type according to described data adopts the service quality QoS corresponding with described type to carry out wireless transmission.
2. the method for claim 1 is characterized in that, describedly knows that the wireless data type of the data that received comprises:
The data and the predetermined radio data type of described reception are compared, and the data map that makes described reception is in described predetermined radio data type; Or
The wireless data type of the terminal equipment analysis that reception is connected with described radio modem and the data that received of transmission.
3. method as claimed in claim 2 is characterized in that, the wireless data type of the data that received of described receiving terminal apparatus analysis and transmission comprises:
Know the wireless data type of described data according to the differentiated services code points DSCP sign in the data of described terminal equipment transmission.
4. the method for claim 1 is characterized in that, the described wireless data type employing service quality QoS corresponding with described type according to described data carries out wireless transmission and comprise:
The data different radio carrying to the different radio data type; Or
To the data definition different priorities of different radio data type, in a carrying, user data is carried out wireless transmission according to different priorities.
5. method as claimed in claim 4 is characterized in that, also comprises:
Obtain wireless resource information from network side, be the data application of different radio data type or discharge Radio Resource according to described wireless resource information.
6. a radio modem is characterized in that, comprising:
The protocol stack processing module is used for receiving and sending data;
Professional sensing module is used to know the wireless data type of the data that received;
Dispatching control module is used for the wireless data type of the data known according to described professional sensing module, and control protocol stack processing module adopts the service quality QoS up transmission described data corresponding with described type.
7. radio modem as claimed in claim 6 is characterized in that, described professional sensing module further comprises:
First knows submodule, is used for the data and the predetermined radio data type of described reception are compared, and the data map that makes described reception is in described predetermined radio data type; And/or
Second knows submodule, and the differentiated services code points DSCP sign that is used for carrying according to the data that described protocol stack processing module receives is known the wireless data type of described data.
8. as claim 6 or 7 described equipment, it is characterized in that described dispatching control module comprises:
Radio Resource application or release submodule are used for obtaining wireless resource information from network side, are the data application of different radio data type or discharge Radio Resource according to described wireless resource information.
9. a terminal equipment is characterized in that, comprising:
Analysis module is used to analyze the wireless data type of data;
Sending module is used to send data, carries the wireless data type of the data of described analysis module analysis in sending to the data of radio modem.
10. terminal equipment as claimed in claim 9 is characterized in that, described sending module further comprises:
Add submodule, be used in the differentiated services code points DSCP sign of the data interpolation that sends to radio modem with the wireless data type matching of described data.
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