CN102821364A - Wireless mobile device, wireless network streaming broadcast system and broadcast method - Google Patents
Wireless mobile device, wireless network streaming broadcast system and broadcast method Download PDFInfo
- Publication number
- CN102821364A CN102821364A CN2012102565534A CN201210256553A CN102821364A CN 102821364 A CN102821364 A CN 102821364A CN 2012102565534 A CN2012102565534 A CN 2012102565534A CN 201210256553 A CN201210256553 A CN 201210256553A CN 102821364 A CN102821364 A CN 102821364A
- Authority
- CN
- China
- Prior art keywords
- package
- stream data
- stream
- wireless network
- portable radio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 28
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical class CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 claims description 113
- 241001269238 Data Species 0.000 claims description 21
- 230000036316 preload Effects 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 23
- 238000009792 diffusion process Methods 0.000 description 15
- 230000000644 propagated effect Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 101100172132 Mus musculus Eif3a gene Proteins 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Abstract
The invention discloses a wireless mobile device, a wireless network streaming broadcast system and a broadcast method, wherein the wireless mobile device comprises an eavesdropping module, a packet filtering module and a streaming broadcast unit. The eavesdropping module is used for eavesdropping a packet of streaming data through wireless network; the packet filtering module is used for judging whether identification information exists in the packet of the streaming data, and when the identification information exists in the packet of the streaming data, the streaming data are allowed to pass; and the streaming broadcast unit is used for executing the play operation based on the passed streaming data.
Description
Technical field
The invention relates to the wireless network communication technology, and particularly relevant for a kind of portable radio device, wireless network series flow broadcasting system and wireless network series flow broadcasting method.
Background technology
The popularizing of wireless transmission improved the convenience that people use network.Yet, because the frequency range of wireless transmission restriction, the user's that radio base station can serve down quantity have eventually its earlier frequency range of the sky limit.
As shown in Figure 1; Single-point is propagated (unicast) stream server 100 and is connected to a radio base station 110; And N crossfire claimer uses mobile device 121,122 respectively ... The last radio network interface of 12N is seen requirement through radio base station off to stream server 100, to obtain stream services.After single-point propagation stream server 100 has been accepted crossfire claimer's requirement, can pass to the crossfire claimer with Wireless transmission mode with single-point crossfire package via radio base station 110.Because each crossfire claimer can require stream services to the single-point stream server according to same mode; So crossfire claimer of every increase; The single-point that will double is propagated crossfire frequency range (download frequency range) demand, and one times require frequency range (uploading frequency range) demand.In Fig. 1, N crossfire user's mobile device 121,122 is arranged ... 12N, thus radio base station then can be occupied total frequency range of N part (upload frequency range add download frequency range).In case total frequency range demand reaches the bandwidth upper limit of wireless network, then radio base station 110 can't provide more stream services.This makes single-point propagate stream server 100 has the quantitative restriction of user via the mode that radio base station 110 transmits the numerical digit crossfire.When the frequency range demand of this numerical digit crossfire high more, but then can make total number of users tail off relatively.
Propagate the frequency range problem of crossfire mode in order to save single-point,, be to use multi-point diffusion (multicast) stream server 200, propagate the mode that the multi-point diffusion crossfire is given the crossfire claimer via radio base station 210 please with reference to Fig. 2.Multi-point diffusion stream server 200 is connected to a radio base station 210; And N crossfire claimer uses mobile device 221,222 respectively ... The last radio network interface of 22N is seen requirement through radio base station 210 off to stream server 200; With adding multi-point diffusion group, and obtain stream services.Accepted crossfire claimer's requirement when stream server 200 after, if 200 of this stream server can be with a crossfire package via radio base station 210, the mode of propagating with wireless multipoint passes to the crossfire claimer.Radio base station 210 to be only propagating a crossfire, but each crossfire user can take down this crossfire, therefore in fact only uses a crossfire frequency range (download frequency range).Each crossfire claimer can require stream services to stream server 200 according to same mode; So crossfire claimer of every increase; What will double requires frequency range (uploading frequency range) demand, and crossfire frequency range (download frequency range) demand is still kept portion.As N crossfire user arranged among Fig. 2, thus radio base station then can be occupied a download frequency range and N part upload frequency range.
Use the mode of multi-point diffusion stream server to utilize the wireless multipoint propagation to solve the frequency range needs of problems of downloading, yet the mode of using wireless multipoint to propagate is propagated crossfire and but can be caused following at least three problems.First; The mode that wireless multipoint is propagated is only package to be propagated once; All crossfire users take down this package, and therefore when this wireless multipoint propagation package made a mistake, the method that the crossfire claimer does not heavily send required radio base station 210 that this package is heavily sent.Wireless transmission medium is the unreliable transmission medium of a high interference; Therefore package transmits through wireless mode and has quite high error rate; Under the environment of high packet error, can make that the playback quality of its audio-visual crossfire of crossfire claimer is low, even can't carry out audio-visual broadcast.The second, 200 of multi-point diffusion stream server have solved the problem of downloading frequency range, but the problem of uploading frequency range still exists.In this mechanism, the crossfire user still can take the frequency range of uploading of N part, and this makes that always uploading frequency range can and rise along with the increase of user's number, and under total frequency range condition of limited, user's number also has its upper limit.The 3rd; When on general wireless network, doing multi-point diffusion (multicast); Radio base station 210 is in order to let all mobile devices 221,222 as far as possible ... 22N can both receive the multi-point diffusion data, can automatically switch to more inefficient transmission mode usually, for example the radio base station of a 802.11a/b/g; Automatically switch to the 802.11b pattern of low frequency range (11Mbps) probably; Rather than to do transmission as employed preferable transmission mode such as 802.11g (54Mbps) under single-point propagation (unicast) situation, the not efficiency that this causes wireless network to use can't use preferable transmitting bandwidth.In addition, general commercially available wireless network base stations can cause whole wireless network usefulness (performance) to decline to a great extent to the processing mode of multi-point diffusion package efficient not usually.
Lifting 802.11 is example, in existing 802.11 systems, can see that second problem can be more obvious.802.11 media access control (MAC; Media Access Control) the agreement design is to adopt Carrier Sense Multiple Access/conflict to avoid (CSMA/CA; Whether mode Carrier Sense Multiple Access with Collision Avoidance) because in the media of wireless transmission, and is not easy accurate detecting and has frame (frame) conflict to take place; Therefore adopt this active to avoid the mode of colliding, but not the mode of passive detecting solve the problem of frame conflict.Use distributing coordination function (DCF in the CSMA/CA agreement; Distributed Coordination Function) solves the problem of colliding avoided; This distributed function has been taked the design of competition; And two kinds of methods of main use are avoided frame collision in this function: one of which, whether when mobile device will transmit frame, it is idle to wait for and monitor transmission channel.Keep the time of one period free time when transmission channel after, equipment can be waited for one period at random again, and transmission channel is when still idle, and equipment just can be seen frame off.If the frame collision conflict will be waited for again.Because the stand-by period of each equipment is to produce at random respectively, therefore can reduce the possibility that each equipment clashes simultaneously when transmission frame.Its two, be RTS-CTS shake hands (handshake) agreement.Equipment will transmit before the long frame; Can send a very little RTS (Request to Send) frame earlier and give destination end; Needed transmission time (NAV after containing; Net Allocation Vector), after destination end is received RTS, can respond CTS (Clear to Send) frame and give the source end.But not the equipment of destination end receives after the RTS, also can read the NAV among its RTS, and NAV was added among its stand-by period., the source end just can begin to transmit after having received CTS.End equipment originate after this mode can be guaranteed when transmitting data, and the equipment that does not have other transmits frame simultaneously, causes the frame conflict.Because RTS frame and CTS frame are all very little, and just can use before having only the long frame of transmission, therefore reduced the cost that transmits.Yet such system design can make that transmitting cost can rise along with number of users, and the growth that produces multiple.Because when number of users becomes many; It is fiercer that competition can become, even if equipment has been waited for enough free time, but because number is too much; The probability that makes frame clash is too high; Transmit the state generation often of frame simultaneously, what the state of excessive competition caused that last nobody can success sees frame, the situation that whole wireless network can paralyse off.This also makes 802.11 design amplify aforesaid second problem, makes it be not suitable for being used under the situation of broadcast streaming, the problem that causes the frequency range utilization rate to descend because its design can amplify the number of users rising.
For solving the problem of on the Wi-Fi wireless network, being video multi-point diffusion (Wi-Fi video multicasting); Someone is in IEEE periodical publish thesis (" Eavesdropping wireless video packets to improve standard multicast transmission in Wi-Fi networks " and " WEVCast:Practical implementation and testing of effective multicast services for Wi-Fi networks "); Its way is for all being set to identical with IP alias all medium access control address (MAC address) that will receive the device of crossfire under the wireless network; So; All crossfire recipients think that stream data that stream server sends out is to oneself, so can stream data be received and do broadcast.But this way also has two shortcomings at least: first; There is multiple arrangement to use identical MAC address in the wireless network; The network connectivity of these devices is conflict mutually; Basically, these devices just can only receive the multi-point diffusion crossfire under this kind application, can not carry out other network connectivities simultaneously; Second; Need wireless network driver be restarted (reset) when switching MAC address; Even need restart whole radio network device, and very inconvenient in the use, provide simultaneously in the WEVCast system under the situation of a plurality of crossfires; The crossfire receiving terminal need switch different MAC address and reach the purpose of switching crossfire, can let availability decline to a great extent.
This shows that above-mentioned existing wireless streamed mode obviously still exists inconvenience and defective, and remains further to be improved.In order to address the above problem, association area is there's no one who doesn't or isn't sought solution painstakingly, but does not see always that for a long time suitable mode is developed completion.Therefore, how can more effectively utilize network bandwidth can adopt best transmission parameter again, real one of the current important research and development problem that belongs to also becomes current association area and needs improved target badly.
Summary of the invention
Therefore, a purpose of the present invention is that a kind of portable radio device, wireless network series flow broadcasting system and broadcasting method are being provided, to solve or to avoid the problem of prior art.
According to one embodiment of the invention, portable radio device comprises the module of eavesdropping, filtering packets module and crossfire broadcast unit.The module of eavesdropping is in order to the package of the stream data of eavesdropping through wireless network; The filtering packets module when having this identifying information in the package of judging stream data, allows stream data to pass through in order to whether to have an identifying information in the package of judging stream data; The crossfire broadcast unit is in order to carry out broadcast based on the stream data that has passed through.
Above-mentioned portable radio device comprises forward error correcting code removal module.The forward error correcting code is removed module in order to from the stream data that has passed through, to remove a forward error correcting code, and wherein after the forward error correcting code was removed, the crossfire broadcast unit was play based on the stream data that has passed through.
Above-mentioned portable radio device also can comprise the preload module.With as identification information, the filtering packets module judges in the header of package of stream data whether contain identifying information to the preload module in order to the preload identifying information.When not containing identifying information in the header, the package of filtering packets module filtering stream data; When containing identifying information in the header, the filtering packets module then allows stream data to pass through.
Above-mentioned portable radio device also can comprise preload module and switch unit.The preload module is in order to the identifying information in the header of the package of a plurality of different stream datas of preload; Switch unit is used as an identification information in order to selection in these identifying informations; The package that the eavesdrop package of these different stream datas of the module of wherein eavesdropping, filtering packets module only allow to have the stream data of this identification information among the package of these different stream datas passes through.
Above-mentioned stream data is video streaming data, audio-visual stream data or audio frequency stream data.
According to another embodiment of the present invention, a kind of wireless network series flow broadcasting system comprises radio transmitting device and stream server.Stream server comprises receiver module, processing module and sending module.When having one to send a crossfire service request through a wireless network in a plurality of portable radio devices, receiver module is in order to receive the stream services requirement via radio transmitting device; Processing module is in order to producing the package of stream data, and adds an identifying information at the package of stream data; Sending module sends the portable radio device that stream services requires in order to send the package of stream data to the single-point circulation way through radio transmitting device, then the eavesdrop package of stream data of remaining portable radio device.
Above-mentioned radio transmitting device is a radio base station, and radio base station links through a cable network and stream server.
Perhaps, above-mentioned radio transmitting device is installed among the stream server.
The package of stream data is provided above-mentioned processing module is encoded stream data through the forward error correcting code after again, and these portable radio devices are play based on stream data after the decoding of forward error correcting code is reduced again.
The quantity of above-mentioned stream server is a plurality of; When these stream server receive that separately stream services requires; Send the package correspondence of different stream datas to the single-point circulation way and to send the portable radio device that stream services requires, then the eavesdrop package of these different stream datas of remaining portable radio device; When identification information coupling that the identifying information that any one is arranged in the package of these different stream datas and the portable radio device of eavesdropping set; The portable radio device acceptance of eavesdropping is matched with the package of the stream data of this identification information, and carries out broadcast based on stream data.
Above-mentioned wireless network is Wi-Fi wireless network or 802.11 wireless networks.
According to further embodiment of this invention, a kind of wireless network series flow broadcasting method comprises the following steps: that (a) when having one to send a crossfire service request through a wireless network in a plurality of portable radio devices, receives the stream services requirement; (b) produce the package of stream data, and add an identifying information at the package of stream data; (c) send the package of stream data to the single-point circulation way and send the portable radio device that stream services requires, then the eavesdrop package of stream data of remaining portable radio device.
Step (b) comprising: with stream data the package of stream data is provided after through forward error correcting code coding again, carries out broadcast based on stream data again after making these portable radio devices with forward error correcting code decoding reduction.
In wireless network series flow broadcasting method; When identifying information coupling that the identifying information and the portable radio device of eavesdropping set; The portable radio device acceptance of eavesdropping is matched with the package of the stream data of identifying information, and carries out broadcast based on stream data.
In sum, technical scheme of the present invention compared with prior art has tangible advantage and beneficial effect.Through technique scheme, can reach suitable technological progress, and have the extensive value on the industry, it has advantage at least:
1. when use was of the present invention, crossfire spectators (that is the portable radio device of, eavesdropping) quantity increase can't increase the wireless network frequency range of the required use of wireless numerical digit crossfire.Compared to traditional method, user's quantity that the system architecture under the present invention can be served increases many;
Since stream server and crossfire claimer (promptly; The portable radio device that the transmission stream services requires) be to propagate (unicast) mode with single-point to do crossfire between; This crossfire can use transmission parameter best under this wireless network environment, does not receive need select for use under traditional multi-point diffusion (multicast) situation the restriction of low bit rate (bit-rate) transmission parameter;
3. except that the crossfire claimer; All the other crossfire spectators only receive the crossfire package passively; Can not send IGMP package or other Wi-Fi request; Significantly reduce the probability that package on the Wi-Fi network bumps against (collision), so native system compares with traditional multi-point diffusion way, can more effectively utilize the Wi-Fi frequency range; And
4. the present invention does not make any modification to wireless network standards agreement (for example 802.11); And use all devices eavesdrop characteristic and function originally on the wireless network, do not need wireless network hardware or driver are made an amendment and can simply on commercially available radio network device be accomplished in fact.
Below will be explained in detail above-mentioned explanation, and explanation further will be provided technical scheme of the present invention with execution mode.
Description of drawings
For letting above-mentioned and other purposes of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 is that the expression single-point is propagated the transmission means that series flow system uses radio base station;
Fig. 2 is the transmission means that expression multi-point diffusion series flow system uses the radio access device;
Fig. 3 is the sketch map according to a kind of wireless network series flow broadcasting system of one embodiment of the invention;
Fig. 4 is the sketch map according to a kind of wireless network series flow broadcasting system of another embodiment of the present invention;
Fig. 5 is the calcspar according to a kind of portable radio device of one embodiment of the invention;
Fig. 6 is the calcspar according to a kind of wireless network series flow broadcasting system of one embodiment of the invention;
Fig. 7 is the calcspar according to a kind of wireless network series flow broadcasting system of another embodiment of the present invention; And
Fig. 8 is the flow chart according to a kind of wireless network series flow broadcasting method of one embodiment of the invention.
[main element symbol description]
100: single-point is propagated stream server
110: radio base station
121,122 ... 12N: mobile device
200: the multi-point diffusion stream server
210: radio base station
221,222 ... 22N: mobile device
300: stream server
310: radio transmitting device
321,322 ... 32N: portable radio device
400a, 400b: stream server
410: radio transmitting device
421,422 ... 42N: portable radio device
500: portable radio device
510: the module of eavesdropping
520: the filtering packets module
530: the forward error correcting code is removed module
540: the crossfire broadcast unit
550: the preload module
560: switch unit
600,700: the wireless network series flow broadcasting system
610,710: receiver module
620,720: processing module
630,730: sending module
640: cable network
650,750: radio transmitting device
800: wireless network series flow broadcasting method
810,820,830: step
Embodiment
In order to make narration of the present invention more detailed and complete, can be with reference to appended accompanying drawing and the various embodiment of the following stated, identical number is represented same or analogous element in the accompanying drawing.On the other hand, well-known element and step are not described among the embodiment, to avoid that the present invention is caused unnecessary restriction.
In execution mode and claim, only if limit to some extent especially for article in the interior literary composition, otherwise " one " can make a general reference single one or more with " being somebody's turn to do ".
Please with reference to Fig. 3, Fig. 3 is the sketch map according to a kind of wireless network series flow broadcasting system of one embodiment of the invention.As shown in Figure 3, the wireless network series flow broadcasting system comprises stream server 300 and radio transmitting device 310.In present embodiment; Radio transmitting device 310 can be a radio base station; This radio base station links by cable network and stream server 300, with the chance of avoiding taking the wireless network frequency range and avoiding wireless network packet collision (collision) to take place.In this system, have only a crossfire claimer (is example with portable radio device 321), all the other then as the crossfire spectators (with portable radio device 322 ... 32N is an example).Portable radio device 321 uses its radio network interface to see a crossfire service request off to carry out the requirement of stream services through radio transmitting device 310 to stream server 300; After stream server 300 is accepted this stream services requirement; Can the package of stream data be added identifying information; In present embodiment, be that the header (header) at package adds identifying information, this identifying information can be special identification code (token/ID); Then, the mode of via radio transmitting device 310 package of stream data being propagated with wireless single-point passes to portable radio device 321.
Moreover above-mentioned single-point is propagated the package of crossfire, can also encode by forward error correcting code (FEC, Forward Error Coding).So, if package when making a mistake, can not need heavily to send package, just can reach package with mistake through calculating again after, recover to become correct package, with first problem in the solution prior art, that is, and the problem that package makes a mistake.
When the crossfire spectators (promptly; Portable radio device 322 ... In the time of 32N) will receiving crossfire; The user can utilize portable radio device through network download, manually input or mode such as bar code scan obtain identifying information earlier; Then the crossfire spectators can eavesdrop (eavesdropping) receive the crossfire package that radio base station 310 is sending to the crossfire claimer; And the package that contains identifying information in the header (header) leached, remove the forward error correcting code, again stream data is transferred to playout software and do broadcast.Except that doing the filtering packets through unique identifier (token/ID); The crossfire spectators also can pass through stream server 300, crossfire claimer (promptly; Portable radio device 321) the part field information in the network address or other headers (for example MAC address, IP address/port, protocol etc.) is done the crossfire filtering packets, and its prerequisite is that the crossfire spectators obtain the identifying information that how to filter package in advance.
In other words, the crossfire spectators (that is, portable radio device 322 ... 32N) eavesdrop and receive the stream data of radio transmitting device 310, but the crossfire spectators directly do not require data to stream server 300.In fact; Has only one (promptly; Portable radio device 321) requiring crossfire to stream server 300, and the crossfire that radio transmitting device 310 is broadcast also has only portion, therefore no matter increase what crossfire spectators; Can not increase extra crossfire frequency range (download frequency range), can not increase the extra frequency range (uploading frequency range) that requires yet.This feasible radio transmitting device 310 as radio base station can send crossfire the crossfire spectators of very large amount to, and can not increase the wireless frequency range of use with the mode of broadcasting.Transmit crossfire with this broadcast mode, can effectively overcome second problem in the prior art: along with user's quantity increases and the not enough problem of frequency range.
Below eavesdropping on the wireless network (eavesdropping) made additional remarks, the medium of wireless network is for open space, so participate in the device of same wireless network again; Usually can receive all packages that send mutually between base station and other devices; Change speech, can " eavesdrop " is a characteristic of wireless network itself, be under the usual situation; Each radio network device can be done filtration with the package of eavesdropping, and only stays base station or other devices and sends to the package of oneself.On general PC (PC) or mobile device, all can realize the function of eavesdropping, for example (libpcap) program of the wireshark on windows platform or the tcpdump of Linux platform etc. through software.
System as shown in Figure 3; For instance; Can be applicable to large-scale concert, from stage spectators' portable radio device capable of using (as: mobile phone, panel computer, notebook computer far away ... Deng) receive audio-visual stream data, can see wonderful live telecast on the stage immediately.
On the other hand, please with reference to Fig. 4, Fig. 4 is the sketch map according to a kind of wireless network series flow broadcasting system of another embodiment of the present invention.As shown in Figure 4, the wireless network series flow broadcasting system comprises a plurality of stream server 400a, 400b and radio transmitting device 410.On framework; Radio transmitting device 410 can be used as a radio base station; This radio base station can provide more than one stream server 400a, 400b to broadcast crossfire simultaneously simultaneously; Stream server 400a, 400b all can be in the header of the package of stream data its identifying information of annotation, the package of the stream data that each is different has different separately identifying informations.In an embodiment; Portable radio device 421 as a crossfire claimer is seen a crossfire service request a through radio transmitting device 410 off to stream server 400a; After stream server 400a accepted this stream services requirement a, stream server 400a propagates the package of stream data a via radio transmitting device 410 with wireless single-point mode passed to portable radio device 421; Similarly; Portable radio device 422 as another crossfire claimer is seen a crossfire service request b through radio transmitting device 410 off to stream server 400b; After stream server 400b accepted this stream services requirement b, stream server 400b propagates the package of stream data b via radio transmitting device 410 with wireless single-point mode passed to portable radio device 422; And as crossfire spectators' portable radio device 42N can eavesdrop simultaneously a plurality of stream data a, b, the crossfire spectators can select the stream data that will play through screening different identifying informations.Because the package of two stream datas is all eavesdropped by the crossfire spectators simultaneously, the user does not need to grasp again, cushion (buffer) crossfire bag when switching different identifying informations, can be very fast so change the time of the audio-visual picture of different crossfires.
System as shown in Figure 4; For instance; Can be applicable to the ball park, the spectators that watch the match portable radio device capable of using (as: mobile phone, panel computer, notebook computer ... Deng) select to want the video streaming data seen, like the instant video of left field, the instant video of right outfield ... Deng.
In order further to set forth the operating mechanism of above-mentioned portable radio device when being used as the crossfire spectators, please with reference to Fig. 5, Fig. 5 is the calcspar according to a kind of portable radio device 500 of one embodiment of the invention.The framework of portable radio device 500 is applicable to like the arbitrary portable radio device among Fig. 3, Fig. 4.
As shown in Figure 5, portable radio device 500 comprises the module 510 of eavesdropping, filtering packets module 520 and crossfire broadcast unit 540.The module of eavesdropping 510 is in order to the package of the stream data of eavesdropping through wireless network.Filtering packets module 520 when having this identifying information in the package of judging stream data, allows stream data to pass through in order to whether to have an identifying information in the package of judging this stream data.Crossfire broadcast unit 540 is in order to carry out broadcast based on the stream data that has passed through.For instance, stream data is video streaming data, audio-visual stream data or audio frequency stream data, and crossfire broadcast unit 540 can be the crossfire playout software, and the crossfire playout software can be used to playing video, audio-visual, sound ... Etc. information.
Moreover portable radio device 500 can more comprise forward error correcting code removal module 530.If the package of stream data is to adopt the forward error correcting code to encode; Then the forward error correcting code is removed module 530 in order to from removing the forward error correcting code the stream data through filtering packets module 520; After the forward error correcting code was removed, crossfire broadcast unit 540 just can carry out crossfire and play.
In an embodiment, a stream server can add identifying information with the package of stream data.Identifying information can be the network address of unique identifier (token/ID), stream server, crossfire claimer's the network address, the part field information in the header or other information available.Portable radio device 500 can comprise preload module 550.With as an identification information, filtering packets module 520 judges in the header of package of stream data whether contain identifying information to preload module 550 in order to this identifying information of preload.When not containing identifying information in the header, the package that representative is eavesdropped is not the package that this stream server is sent, therefore, and the package of filtering packets module 520 these stream datas of filtering; Otherwise when containing identifying information in the header, the package that representative is eavesdropped is the package that this stream server is sent, and therefore, 520 of filtering packets modules allow stream data to pass through, and carries out crossfire by crossfire broadcast unit 540 and plays.
In another embodiment, a plurality of stream server are broadcast different stream datas simultaneously.In order to let the user select the stream data that will play, portable radio device 500 also can comprise switch unit 560.Preload module 550 is in order to the identifying information in the header of the package of a plurality of different stream datas of preload; Switch unit 560 is used as an identification information in order to selection in the identifying information of these preloads; The eavesdrop package of these different stream datas of the module of wherein eavesdropping 510; The package that has the stream data of this identification information among the package of these different stream datas of 520 permissions of filtering packets module passes through, and carries out crossfire by crossfire broadcast unit 540 and plays.On real the work, for instance, switch unit 560 can be the running of inputting interface (as: Touch Screen) collocation software, and whereby, the user can select the crossfire of desire reception voluntarily through switch unit 560.
For the mechanism of wireless network series flow broadcasting system is done further to set forth, please with reference to Fig. 6, Fig. 6 is the calcspar according to a kind of wireless network series flow broadcasting system of one embodiment of the invention.As shown in Figure 6, the wireless network series flow broadcasting system comprises stream server 600 and radio transmitting device 650.The framework of stream server 600 is applicable to like the arbitrary stream server among Fig. 3, Fig. 4.
In Fig. 6, stream server 600 comprises receiver module 610, processing module 620 and sending module 630.In above-mentioned a plurality of portable radio devices, have one (promptly; When the crossfire claimer) sending a crossfire service request through wireless network (as: Wi-Fi wireless network or 802.11 wireless networks), receiver module 610 is in order to receive the stream services requirement via radio transmitting device 650; Processing module 620 is in order to producing the package of stream data, and adds an identifying information at the package of stream data; Sending module 630 sends portable radio device that stream services requires (promptly in order to send the package of stream data to the single-point circulation way through radio transmitting device 650; The crossfire claimer); And the package of remaining portable radio device (that is crossfire spectators) stream data of then eavesdropping.
In order to solve the problem that package makes a mistake, the package of stream data encoding stream data through the forward error correcting code after, processing module 620 is provided again, and portable radio device is play based on stream data after the decoding of forward error correcting code is reduced again.
On the practice; In the wireless network series flow broadcasting system, a plurality of stream server 600 (like the framework of Fig. 4) can be set, when these stream server receive that separately stream services requires; Send the package correspondence of different stream datas to the single-point circulation way and to send portable radio device that stream services requires (promptly; And the package of remaining portable radio device (that is crossfire spectators) these different stream datas of then eavesdropping the crossfire claimer).The portable radio device that the identifying information of any one is arranged in the package of these different stream datas and eavesdrop (promptly; When an identification information that the crossfire spectators) sets matees; The portable radio device of eavesdropping (promptly; The crossfire spectators) acceptance is matched with the package of the stream data of this identification information, and carries out broadcast based on stream data.
In Fig. 6, radio transmitting device 650 is a radio base station, and this radio base station links by cable network 640 and stream server 600, with the chance of avoiding taking the wireless network frequency range and avoiding the wireless network packet collision to take place.
Perhaps, as shown in Figure 7, radio transmitting device 750 is installed among the stream server 700, and whereby, stream server 700 is given the crossfire claimer with the package of the direct wireless transmission stream data of ad hoc pattern, need not pass through radio base station; All the other crossfire spectators reception stream data of still can eavesdropping.As for the function mode of the receiver module in the stream server 700 710, processing module 720 and sending module 730 receiver module 610, processing module 620 and sending module 630, therefore no longer repeat to give unnecessary details as Fig. 6.
The aforesaid module 510 of eavesdropping, filtering packets module 520, forward error correcting code are removed module 530, crossfire broadcast unit 540, preload module 550, switch unit 560, receiver module 610, processing module 620, sending module 630 ... Deng, its embodiment can be software, hardware and/or a piece of wood serving as a brake to halt a carriage body.For instance, if with execution speed and accuracy for primarily considering, then can to select hardware and a piece of wood serving as a brake to halt a carriage body basically for use be main for each module and each unit; If for primarily considering, then can to select software basically for use be main for each module and each unit with design flexibility; Perhaps, each module can adopt software, hardware and a piece of wood serving as a brake to halt a carriage body work compound simultaneously with each unit.Should be appreciated that, more than the not so-called branch that which is better and which is worse of these examples of being takeed, also be not in order to restriction the present invention, be familiar with this art when looking needs at that time, the embodiment of elasticity each module of selection and each unit.
Another technical scheme of the present invention is a kind of wireless network series flow broadcasting method, and it can be applicable to aforesaid wireless network series flow broadcasting system, or is used in relevant sport technique segment widely.The Fig. 8 that below will arrange in pairs or groups explains the embodiment of this wireless network series flow broadcasting method.
Fig. 8 is the flow chart according to a kind of wireless network series flow broadcasting method 800 of one embodiment of the invention.As shown in Figure 8; Wireless network series flow broadcasting method 800 comprises that step 810～830 (should be appreciated that mentioned in the present embodiment step is except that chatting bright its order person especially; All can adjust its front and back order, even can carry out simultaneously simultaneously or partly) according to actual needs.
In step 810, one (that is, the crossfire claimer) are arranged when sending a crossfire service request through a wireless network in a plurality of portable radio devices, receive the stream services requirement; In step 820, produce the package of stream data, and add an identifying information at the package of stream data; In step 830, send the package of stream data to send the stream services requirement portable radio device (that is, the crossfire claimer) with the single-point circulation way, and the package of remaining portable radio device (that is crossfire spectators) stream data of then eavesdropping.
Moreover step 820 can comprise: with stream data the package of stream data is provided after through forward error correcting code coding again, carries out broadcast based on stream data again after making portable radio device with forward error correcting code decoding reduction.
In wireless network series flow broadcasting method 800; When identifying information coupling that the identifying information and the portable radio device of eavesdropping set; The portable radio device acceptance of eavesdropping is matched with the package of the stream data of identifying information, and carries out broadcast based on stream data.
Though the present invention discloses as above with execution mode; Right its is not in order to limit the present invention; Anyly be familiar with this art; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (14)
1. a portable radio device is characterized in that, comprises:
One module of eavesdropping is in order to the package of the stream data of eavesdropping through a wireless network;
One filtering packets module in order to whether to have an identifying information in the package of judging this stream data, when having this identifying information in the package of judging this stream data, allows this stream data to pass through; And
A string spreading put the unit, in order to play based on this stream data that has passed through.
2. portable radio device according to claim 1 is characterized in that, also comprises:
One forward error correcting code is removed module, and in order to from this stream data that has passed through, to remove a forward error correcting code, wherein after this forward error correcting code was removed, this crossfire broadcast unit was play based on this stream data that has passed through.
3. portable radio device according to claim 1 is characterized in that, also comprises:
One preload module; In order to this identifying information of preload with as identification information; Wherein this filtering packets module judges in the header of package of this stream data whether contain this identifying information, when not containing this identifying information in this header, and the package of this this stream data of filtering packets module filtering; When containing this identifying information in this header, this filtering packets module then allows this stream data to pass through.
4. portable radio device according to claim 1 is characterized in that, also comprises:
One preload module is in order to the identifying information in the header of the package of a plurality of different stream datas of preload; And
One switching unit; Be used as an identification information in order to selection in those identifying informations; The package that this module of eavesdropping package of those different stream datas of eavesdropping wherein, this filtering packets module only allow to have this stream data of this identification information among the package of those different stream datas passes through.
5. portable radio device according to claim 1 is characterized in that, this stream data is video streaming data, an audio-visual stream data or an audio frequency stream data.
6. a wireless network series flow broadcasting system is characterized in that, comprises:
One radio transmitting device; And
At least one stream server comprises:
One receiver module in order to when having one to send a crossfire service request through a wireless network in a plurality of portable radio devices, receives this stream services requirement via this radio transmitting device;
One processing module in order to producing the package of stream data, and adds an identifying information at the package of this stream data; And
One sending module sends the portable radio device that this stream services requires in order to send the package of this stream data to the single-point circulation way through this radio transmitting device, then the eavesdrop package of this stream data of remaining portable radio device.
7. wireless network series flow broadcasting system according to claim 6 is characterized in that, this radio transmitting device is a radio base station, and this radio base station links through a cable network and this stream server.
8. wireless network series flow broadcasting system according to claim 6 is characterized in that this radio transmitting device is installed among this stream server.
9. wireless network series flow broadcasting system according to claim 6; It is characterized in that; The package of this stream data is provided this processing module is encoded this stream data through the forward error correcting code after again, and those portable radio devices are play based on this stream data after this forward error correcting code decoding is reduced again.
10. wireless network series flow broadcasting system according to claim 6; It is characterized in that; The quantity of stream server wherein is a plurality of; When those stream server receive that separately this stream services requires, send the package correspondence of different stream datas to send this stream services requirement portable radio device with the single-point circulation way, then the eavesdrop package of those different stream datas of remaining portable radio device; When identification information coupling that this identifying information that any one is arranged in the package of those different stream datas and the portable radio device of eavesdropping set; The portable radio device acceptance of eavesdropping is matched with the package of the stream data of this identification information, and carries out broadcast based on this stream data.
11. wireless network series flow broadcasting system according to claim 6 is characterized in that, this wireless network is Wi-Fi wireless network or 802.11 wireless networks.
12. a wireless network series flow broadcasting method is characterized in that, comprises:
(a) when having one to send a crossfire service request in a plurality of portable radio devices, receive this stream services requirement through a wireless network;
(b) produce the package of stream data, and add an identifying information at the package of this stream data; And
(c) send the package of this stream data to the single-point circulation way and send the portable radio device that this stream services requires, then the eavesdrop package of this stream data of remaining portable radio device.
13. wireless network series flow broadcasting method according to claim 12; It is characterized in that; Step (b) comprising: with this stream data the package of this stream data is provided after through forward error correcting code coding again, carries out broadcast based on this stream data again after making those portable radio devices with this forward error correcting code decoding reduction.
14. wireless network series flow broadcasting method according to claim 12; It is characterized in that; When identification information coupling that this identifying information and the portable radio device of eavesdropping set; The portable radio device acceptance of eavesdropping is matched with the package of the stream data of this identifying information, and carries out broadcast based on this stream data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102565534A CN102821364A (en) | 2012-07-23 | 2012-07-23 | Wireless mobile device, wireless network streaming broadcast system and broadcast method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102565534A CN102821364A (en) | 2012-07-23 | 2012-07-23 | Wireless mobile device, wireless network streaming broadcast system and broadcast method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102821364A true CN102821364A (en) | 2012-12-12 |
Family
ID=47305171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102565534A Pending CN102821364A (en) | 2012-07-23 | 2012-07-23 | Wireless mobile device, wireless network streaming broadcast system and broadcast method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102821364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874151A (en) * | 2017-12-05 | 2019-06-11 | 财团法人工业技术研究院 | Wireless communication method and the communication terminal device for applying it |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1885784A (en) * | 2006-07-04 | 2006-12-27 | 华为技术有限公司 | Unicast data group addressing method and its system |
| CN1933453A (en) * | 2005-09-16 | 2007-03-21 | 三星电子株式会社 | Apparatus and method of multicyclic redundancy checking |
| CN101123641A (en) * | 2007-09-14 | 2008-02-13 | 东南大学 | Monitoring method for wireless network call monitoring device based on distributed architecture |
| CN101420316A (en) * | 2007-10-19 | 2009-04-29 | 株式会社日立制作所 | Video distribution system for switching video streams |
| CN101568037A (en) * | 2008-04-21 | 2009-10-28 | 展讯通信（上海）有限公司 | Method, terminal and system for DVB-H mobile phone television stream type restoration |
| US20090300207A1 (en) * | 2008-06-02 | 2009-12-03 | Qualcomm Incorporated | Pcc enhancements for ciphering support |
| US20100242081A1 (en) * | 2009-02-24 | 2010-09-23 | Manufacturing Resources International, Inc. | System for distributing a plurality of unique video/audio streams |
-
2012
- 2012-07-23 CN CN2012102565534A patent/CN102821364A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933453A (en) * | 2005-09-16 | 2007-03-21 | 三星电子株式会社 | Apparatus and method of multicyclic redundancy checking |
| CN1885784A (en) * | 2006-07-04 | 2006-12-27 | 华为技术有限公司 | Unicast data group addressing method and its system |
| CN101123641A (en) * | 2007-09-14 | 2008-02-13 | 东南大学 | Monitoring method for wireless network call monitoring device based on distributed architecture |
| CN101420316A (en) * | 2007-10-19 | 2009-04-29 | 株式会社日立制作所 | Video distribution system for switching video streams |
| CN101568037A (en) * | 2008-04-21 | 2009-10-28 | 展讯通信（上海）有限公司 | Method, terminal and system for DVB-H mobile phone television stream type restoration |
| US20090300207A1 (en) * | 2008-06-02 | 2009-12-03 | Qualcomm Incorporated | Pcc enhancements for ciphering support |
| US20100242081A1 (en) * | 2009-02-24 | 2010-09-23 | Manufacturing Resources International, Inc. | System for distributing a plurality of unique video/audio streams |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874151A (en) * | 2017-12-05 | 2019-06-11 | 财团法人工业技术研究院 | Wireless communication method and the communication terminal device for applying it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101132935B1 (en) | Generating and selecting media streams | |
| CN101068236B (en) | Streaming media bit rate control method, system and equipment | |
| CN100542341C (en) | Realize the method and apparatus of data sharing between portable terminal | |
| Dujovne et al. | Multicast in 802.11 WLANs: an experimental study | |
| Zhu et al. | Multiple vehicles collaborative data download protocol via network coding | |
| WO2020216059A1 (en) | Network resource sharing method and related apparatus | |
| US20130094367A1 (en) | Method, apparatus, and system for carrying out multimedia service in wireless local area | |
| US20150319644A1 (en) | A method and a system for sharing wireless broadband connection between devices | |
| JP2008518525A (en) | Method, system and apparatus for providing modulation and coding scheme used for multicast service macro diversity | |
| US20170238148A1 (en) | Methods and apparatus for enhanced mbms content provisioning and content ingestion | |
| RU2616882C2 (en) | Cluster access network, terminal equipment and method for joining cluster group | |
| CN102598700A (en) | Method of digital audio/video channel change and corresponding apparatus | |
| CN110113306B (en) | Method and network device for distributing data | |
| CN108028837A (en) | Technology for the in-band signaling of the service describing renewal in RTP | |
| CN102340742B (en) | Data processing method and access point equipment | |
| CN102412921B (en) | The implementation method of multi-media broadcasting service and data card | |
| WO2017070838A1 (en) | Resource scheduling method, base station, scheduler, program server and system | |
| Xing et al. | An experimental study on wi-fi ad-hoc mode for mobile device-to-device video delivery | |
| CN102802200B (en) | Data message sending method and equipment | |
| TWI495288B (en) | Wireless mobile device, system and method of broadcasting wireless streaming media | |
| CN104272713A (en) | Multi-party calling method and device | |
| CN103414836B (en) | Access processing method and the device of IP-based videoconference | |
| WO2009000064A1 (en) | Location of packet data convergence protocol | |
| CN103428175A (en) | Real-time voice intercom system based on heterogeneous mobile IP networks | |
| CN105743663A (en) | Data transmission device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |