CN105722250A - Data transmission and reverse control method, device and system - Google Patents

Data transmission and reverse control method, device and system Download PDF

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Publication number
CN105722250A
CN105722250A CN201410729193.4A CN201410729193A CN105722250A CN 105722250 A CN105722250 A CN 105722250A CN 201410729193 A CN201410729193 A CN 201410729193A CN 105722250 A CN105722250 A CN 105722250A
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reverse
source device
audio transmission
mobile unit
turning control
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CN201410729193.4A
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CN105722250B (en
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张勇浩
张彪
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China Mobile Communications Group Co Ltd
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China Mobile Communications Group Co Ltd
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Priority to CN201811062108.8A priority Critical patent/CN109379645B/en
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Abstract

The invention discloses a data transmission and reverse control method, device and system. In the scheme, a source device and a vehicle-mounted device carry out the negotiation of reverse audio transmission capability, and then carry out the negotiation of a reverse audio transmission port after the source device and the vehicle-mounted device are determined to be able to support the reverse audio transmission capability. Moreover, the source device carries out audio data transmission with the vehicle-mounted device through the negotiated reverse audio transmission port, thereby achieving the reverse and bidirectional audio data transmission between the vehicle-mounted device and the source device. In addition, the source device also can broadcast a reverse input capability message with an identification used for representing a supported the type of a vehicle-mounted control device to surrounding devices, so as to carry out the reverse control of the source device in a mode of transmitting a reverse control common message with a corresponding vehicle-mounted reverse control message to the source device when each vehicle-mounted device determines the type of a vehicle-mounted control device supported by the source device according to the reverse input capability message, thereby achieving a purpose that the vehicle-mounted device achieves the reverse control of the source device.

Description

A kind of data transmission and Reverse Turning Control method, equipment and system
Technical field
The present invention relates to multi-screen interactive technical field, particularly relate to a kind of data transmission and Reverse Turning Control method, equipment and system.
Background technology
Multi-screen interactive technology refers to, based on DLNA (by Sony, Intel, Microsofts etc. initiate to set up, aim to solve the problem that individual PC, consumer appliances, mobile equipment is in the technology that interconnects of interior wireless network and cable network) agreement, IGRS protocol or Miracast (are also called WI-FIDisplay, namely wireless with screen) agreement etc., connected by WIFI (Wireless Fidelity) network, in different multimedia terminal, such as hands machine, PAD, content of multimedia is carried out (such as audio frequency between TV etc., video or picture etc.) transmission, resolve, the sequence of operations such as displaying or control, to share the technology of the content shown on different platform equipment simultaneously.
In simple terms, by multi-screen interactive technology, can realizing between the screen of distinct device connecting conversion accordingly, the film on such as mobile phone can be play on TV, and the picture on flat board can be shared on TV, content on computer can project to TV etc., that is, by multi-screen interactive technology, it may be achieved promptly transmit picture, audio or video etc. between each relevant device, therefore, multi-screen interactive technology is transmitted in the data of each equipment room and is widely used.
But, current multi-screen interactive technology (such as Miracast technology) does not generally support following vehicular applications scene: as, by each application on the source devices such as control button (including knob, the button etc.) operating handset on mobile unit, or, from mobile unit reverse transfer voice data to source devices such as mobile phones, to realize the transmission etc. of the reverse or even two-way audio data between the source device such as mobile unit and mobile phone, thus causing that the use scene of multi-screen interactive technology is greatly limited.
Summary of the invention
Embodiments provide the transmission of a kind of data and Reverse Turning Control method, equipment and system, the multi-screen interactive technology in order to solve presently, there are do not support between mobile unit and source device reversely so that the transmission of two-way audio data and do not support the mobile unit problem to vehicle-mounted application scenarios such as the Reverse Turning Control of source device.
Embodiments provide a kind of data transmission method, including:
Source device and mobile unit carry out the negotiation of reverse audio transmission ability；
If it is determined that self and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
Further, the embodiment of the present invention additionally provides another kind of data transmission method, including:
Mobile unit and source device carry out the negotiation of reverse audio transmission ability；
If it is determined that self all supports reverse audio transmission ability with described source device, then consult the reverse audio transmission port for transmitting voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
Further, embodiments provide a kind of Reverse Turning Control method, including:
Source device is if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device supports the reverse input capability message of the mark of onboard control device type towards periphery；
If receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
Further, the embodiment of the present invention additionally provides another kind of Reverse Turning Control method, including:
Mobile unit receives the reverse input capability message of source device broadcast；
If it is determined that described reverse input capability message carries for representing that described source device supports the mark of onboard control device type, and determine that described source device need to be carried out Reverse Turning Control by self, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
Further, the embodiment of the present invention additionally provides a kind of terminal unit, including:
Capability negotiation unit, for carrying out the negotiation of reverse audio transmission ability with mobile unit；
Port negotiation unit, for if it is determined that described terminal unit and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
Further, the embodiment of the present invention additionally provides a kind of mobile unit, including:
Capability negotiation unit, for carrying out the negotiation of reverse audio transmission ability with source device；
Port negotiation unit, for if it is determined that described mobile unit and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
Further, the embodiment of the present invention additionally provides another kind of terminal unit, including:
Transmitting element, for if it is determined that described terminal unit supports onboard control device type, then each device broadcasts carries for representing that described terminal unit supports the reverse input capability message of the mark of onboard control device type towards periphery；
Receive unit, for receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that mobile unit sends；
Processing unit, for controlling operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
Further, the embodiment of the present invention additionally provides another kind of mobile unit, including:
Receive unit, for receiving the reverse input capability message of source device broadcast；
Processing unit, for if it is determined that described reverse input capability message carries for representing that described source device is supported the mark of onboard control device type and determines that described source device need to be carried out Reverse Turning Control by self, then triggering transmitting element and send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device；
Transmitting element, for the triggering according to described processing unit, sends the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
Further, the embodiment of the present invention additionally provides a kind of data transmission system, including including source device and mobile unit, wherein:
Described source device, for carrying out the negotiation of reverse audio transmission ability with described mobile unit, and, if it is determined that self and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data；
Described mobile unit, for carrying out the negotiation of reverse audio transmission ability with described source device, and, if it is determined that self and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
Further, the embodiment of the present invention additionally provides a kind of revertive control system, including source device and mobile unit, wherein:
Described source device, for if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device supports the reverse input capability message of the mark of onboard control device type towards periphery；And, if receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information；
Described mobile unit, for receiving the reverse input capability message of described source device broadcast, and if it is determined that described reverse input capability message carries for representing that described source device is supported the mark of onboard control device type and determines that described source device need to be carried out Reverse Turning Control by self, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
The present invention has the beneficial effect that:
Embodiments provide a kind of data transmission method and Reverse Turning Control method, equipment and system, in technical scheme described in the embodiment of the present invention, source device can carry out the negotiation of reverse audio transmission ability with mobile unit, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with mobile unit and utilize the reverse audio transmission port of negotiation and mobile unit to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, the problem solving the vehicular applications scene that existing multi-screen interactive technology does not support the reverse or even two-way audio data between mobile unit and source device to transmit, extend the use scene of multi-screen interactive technology.
Additionally, in technical scheme described in the embodiment of the present invention, source device also can when determining that self supports onboard control device type, each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery, with by each mobile unit around according to described reverse input capability message, determine when source device supports onboard control device type, by sending the mode of the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to source device, source device is carried out Reverse Turning Control, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology and do not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand the use scene of multi-screen interactive technology.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during embodiment is described is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 show the schematic flow sheet of data transmission method described in the embodiment of the present invention one；
Fig. 2 show the schematic flow sheet of data transmission method described in the embodiment of the present invention two；
Fig. 3 show the schematic flow sheet of data transmission method described in the embodiment of the present invention three；
Fig. 4 show the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention four；
Fig. 5 show the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention five；
Fig. 6 show the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention six；
Fig. 7 show the schematic flow sheet of terminal unit described in the embodiment of the present invention seven；
Fig. 8 show the schematic flow sheet of mobile unit described in the embodiment of the present invention seven；
Fig. 9 show the schematic flow sheet of another kind of terminal unit described in the embodiment of the present invention seven；
Figure 10 show the schematic flow sheet of another kind of mobile unit described in the embodiment of the present invention seven；
Figure 11 show the structural representation of data transmission system described in the embodiment of the present invention seven；
Figure 12 show the structural representation of revertive control system described in the embodiment of the present invention seven.
Detailed description of the invention
Embodiments provide a kind of data transmission method and Reverse Turning Control method, equipment and system, in technical scheme described in the embodiment of the present invention, source device can carry out the negotiation of reverse audio transmission ability with mobile unit, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with mobile unit and utilize the reverse audio transmission port of negotiation and mobile unit to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, solve existing multi-screen interactive technology, the problem not supporting the vehicular applications scene of the reverse or even two-way audio data transmission between mobile unit and source device such as Miracast technology, extend the use scene of multi-screen interactive technology.
Additionally, in technical scheme described in the embodiment of the present invention, source device also can when determining that self supports onboard control device type, each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery, with by each mobile unit around according to described reverse input capability message, determine when source device supports onboard control device type, by sending the mode of the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to source device, source device is carried out Reverse Turning Control, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology, as Miracast technology does not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand the use scene of multi-screen interactive technology.
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one:
In order to support the reverse or even two-way audio data transmission between mobile unit and source device, the embodiment of the present invention one provides a kind of data transmission method, as it is shown in figure 1, it is the schematic flow sheet of data transmission method described in the embodiment of the present invention one, described method can comprise the following steps that
Step 101: source device and mobile unit carry out the negotiation of reverse audio transmission ability.
Specifically, for Miracast technology, source device can carry out the negotiation of reverse audio transmission ability with mobile unit in the capability negotiation stage of existing Miracast1.0 specification definition, and, with reference to consulting the flow process of respective extension ability between source and sink involved in Miracast1.0 specification it can be seen that the concrete flow process of consulting of described reverse audio transmission ability comprises the steps that
Source device sends the first extended capability negotiation message carrying the first mark to described mobile unit, described first mark is used for representing whether described source device has reverse audio transmission ability, with the extended capability self possessed according to described first mark carried in described first extended capability negotiation message and described mobile unit by described mobile unit, it is judged that whether described source device and described mobile unit all support reverse audio transmission ability；And, if receive that described mobile unit returns for representing that described source device and described mobile unit all support the response message of reverse audio transmission ability, then determine that described source device and described mobile unit all support reverse audio transmission ability, otherwise, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit；
Or,
Receiving the second extended capability negotiation message carrying the second mark that described mobile unit sends, described second mark is used for representing whether described mobile unit has reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines the reverse audio transmission ability of described mobile unit support, and the extended capability self possessed according to described source device determines and self also supports reverse audio transmission ability, it is determined that described source device and described mobile unit all support reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines that described mobile unit does not support reverse audio transmission ability, or, the extended capability self possessed according to described source device is determined and self is not supported reverse audio transmission ability, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit.
That is, source device when carrying out the negotiation of reverse audio transmission ability with mobile unit, can adopt and be performed to judge whether the two all supports the judgment mode of the operation of reverse audio transmission ability by mobile unit, may be used without being performed to judge whether the two all supports the judgment mode of the operation of reverse audio transmission ability by described source device, this is not limited in any way by the embodiment of the present invention.
It is further to note that, source device before carrying out the negotiation of reverse audio transmission ability with mobile unit, can first determine whether self whether to support reverse audio transmission ability, after determining that self supports reverse audio transmission ability, performing follow-up reverse audio transmission capability negotiation procedure again, this is not repeated by the embodiment of the present invention.
There is a need to illustrate, for Miracast technology, source device, before carry out the negotiation of reverse audio transmission ability with mobile unit, generally also can first carry out corresponding equipment and find flow process again.Specifically, unlike the prior art, equipment discovery phase in the embodiment of the present invention, to terminal unit (such as mobile unit), source device can increase in the broadcast of equipment discovery phase or broadcast frame whether relevant information oneself supports reverse audio transmission ability to identify, so that according to the relevant information of this increase, the terminal unit of correspondence or source device can find that surrounding possesses the equipment of respective opposed audio transmission ability, this is not repeated by the embodiment of the present invention.
Further, it should be noted that, for Miracast technology, described first, second extended capability negotiation message can for being used for consulting the WFDExtendedCapabilities message of source and the sink extended capability supported in existing Miracast1.0 specification.That is, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, can Miracast1.0 specification defined be used for consult the WFDExtendedCapabilities message of source and the sink extended capability supported is carried corresponding, for representing whether relevant device has the identification information of reverse audio transmission ability, such as the first mark or the second mark.
Specifically, WFDExtendedCapabilitiesBitmap (bit map corresponding to WFDExtendedCapabilities message) as shown in table 1 is known, message field corresponding to WFDExtendedCapabilities message exists multiple still untapped setting reserved bit (such as 6-15 position, namely the corresponding reserved bit that bit-identify is 6-15), therefore, it is contemplated that one (such as the 6th) in above-mentioned setting reserved bit is extended, it can be used as reverse voice data transmittability to support position.That is, described first mark specifically can be represented by the concrete value of this setting reserved bit in the message field corresponding to described first extended capability negotiation message；Described second mark specifically can be represented by the concrete value of this setting reserved bit in the message field corresponding to described second extended capability negotiation message, and this is not repeated by the embodiment of the present invention.
Table 1:WFDExtendedCapabilitiesBitmap
Further, in embodiment of the present invention, described reverse voice data transmittability supports that the definition of position can as other abilities support position corresponding to extended capability negotiation message as shown in table 1,0b0 can represent and not support reverse audio transmission ability (i.e. Notsupported), 0b1 can represent the reverse audio transmission ability (i.e. supported) of support, and this is not repeated by the embodiment of the present invention.Certainly it should be noted that other value (such as 1 or 0 etc.) also can be adopted to indicate whether to support reverse audio transmission ability, this is not limited in any way by the embodiment of the present invention.
Step 102: described source device is if it is determined that self and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
Specifically, for Miracast technology, described source device and described mobile unit can carry out the negotiation of reverse audio transmission port in the capability negotiation stage that existing Miracast1.0 specification is defined, and, with reference to the audio, video data port used when consulting to transmit from source to sink audio, video data between source and sink involved in Miracast1.0 specification flow process it can be seen that described reverse audio transmission port concrete consult flow process can as described in step A1-A3:
Step A1: send parameter acquiring request message to described mobile unit, described parameter acquiring request message carries the backward end slogan for consulting reverse audio transmission port numbers and consults parameter field, it is desirable to mobile unit is consulted to fill in corresponding reversely audio transmission port numbers in parameter field at this backward end slogan when responding this parameter acquiring request message.
Wherein, the attribute for the equipment of inquiring that described parameter acquiring request message can be source device to be sent to mobile unit and the M3request message of tenability, parameter field consulted in the backward end slogan for consulting reverse audio transmission port numbers carried in this parameter acquiring request message can be the wfd-reverse-audio-port parameter field newly increased on the basis of Miracast1.0 specification, specifically, the definition of wfd-reverse-audio-port parameter field can be:
The wfd-reverse-audio-port parameter field of wfd-reverse-audio-port=" wfd-reverse-audio-port: " SPprofileSPrtp-portSPmodeCRLF//namely specifically can include profile (configuration) territory, rtp-port (live transmission protocol port) territory and mode (pattern) territory etc.；
Profile=" RTP/AVP/UDP；Unicast " // namely corresponding configuration domain information can for transmit RTP bag by TCP (transmission control protocol), or, clean culture etc.；
Rtp-port=IPPORT；UDPport//namely corresponding port domain information can be IP (Internet protocol) port or UDP (UDP) port etc.；
Mode=" mode=play " // namely corresponding mode field information can be play (broadcasting) etc..
Step A2: receive the parameter acquiring response message that described mobile unit asks message to return for described parameter acquiring, carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field in described parameter acquiring response message.
Wherein, described parameter acquiring response message can be M3response message, namely, described mobile unit, when being returned for parameter acquiring response message (i.e. the M3response message) of described parameter acquiring request message (i.e. M3request message) to described source device, need to add at least one reverse audio transmission port numbers in the wfd-reverse-audio-port parameter field in this parameter acquiring response message.
Step A3: according to described parameter acquiring response message, to described mobile unit return parameters, request message is set, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field, to inform the reverse audio transmission port numbers that described both mobile units are consulted；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported.
Specifically, described parameter setting request message can be M4request message, and this is not repeated by the embodiment of the present invention.
So far, the negotiation of reverse audio transmission port numbers between source device and mobile unit can be realized.
Further, it should be noted that, after consulting reverse audio transmission port numbers, described source device reverse audio transmission port numbers through consultation and mobile unit can carry out the transmission of voice data, for Miracast technology, concrete data transmission stream journey can be similar with the data transmission procedure of existing Miracast1.0 specification, and this is not repeated by the embodiment of the present invention.
In addition, it is necessary to illustrate, except Miracast technology, the embodiment of the present invention could be applicable to other multi-screen interactive technology, and such as the multi-screen interactive technology based on DLNA agreement or IGRS protocol, this is not repeated by the embodiment of the present invention.
That is, in technical scheme described in the embodiment of the present invention one, source device can carry out the negotiation of reverse audio transmission ability with mobile unit, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with mobile unit and utilize the reverse audio transmission port of negotiation and mobile unit to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, solve existing multi-screen interactive technology, the problem not supporting the vehicular applications scene of the reverse or even two-way audio data transmission between mobile unit and source device such as Miracast technology, extend multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment two
The embodiment of the present invention two is for mobile unit for action executing side, data transmission method described in the embodiment of the present invention one is further described, as in figure 2 it is shown, it is the schematic flow sheet of the data transmission method described in the embodiment of the present invention two, described method can comprise the following steps that
Step 201: mobile unit and source device carry out the negotiation of reverse audio transmission ability.
Specifically, for Miracast technology, described mobile unit can carry out the negotiation of reverse audio transmission ability with described source device in the capability negotiation stage of existing Miracast1.0 specification definition, and, with reference to consulting the flow process of respective extension ability between source and sink involved in Miracast1.0 specification it can be seen that the concrete flow process of consulting of described reverse audio transmission ability comprises the steps that
Receiving the first extended capability negotiation message carrying the first mark that described source device sends, described first mark is used for representing whether described mobile unit has reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines the reverse audio transmission ability of described source device support, and the extended capability self possessed according to described mobile unit determines and self also supports reverse audio transmission ability, it is determined that described mobile unit and described source device all support reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines that described source device does not support reverse audio transmission ability, or, the extended capability self possessed according to described mobile unit is determined and self is not supported reverse audio transmission ability, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device；
Or,
The the second extended capability negotiation message carrying the second mark is sent to described source device, described second mark is used for representing whether described mobile unit has reverse audio transmission ability, with the extended capability self possessed according to described second mark carried in described second extended capability negotiation message and described source device by described source device, it is judged that whether described mobile unit and described source device all support reverse audio transmission ability；And, if receive that described source device returns for representing that described mobile unit and described source device all support the response message of reverse audio transmission ability, then determine that described mobile unit and described source device all support reverse audio transmission ability, otherwise, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device.
That is, mobile unit when carrying out the negotiation of reverse audio transmission ability with source device, can adopt and be performed to judge whether the two all supports the judgment mode of the operation of reverse audio transmission ability by mobile unit, may be used without being performed to judge whether the two all supports the judgment mode of the operation of reverse audio transmission ability by source device, this is not limited in any way by the embodiment of the present invention.
It is further to note that, mobile unit before carrying out the negotiation of reverse audio transmission ability with source device, can first determine whether self whether to support reverse audio transmission ability, after determining that self supports reverse audio transmission ability, performing follow-up reverse audio transmission capability negotiation procedure again, this is not repeated by the embodiment of the present invention.
There is a need to illustrate, for Miracast technology, mobile unit, before carry out the negotiation of reverse audio transmission ability with source device, generally also can first carry out corresponding equipment and find flow process again.Specifically, unlike the prior art, equipment discovery phase in the embodiment of the present invention, to source device, mobile unit can increase in the broadcast of equipment discovery phase or broadcast frame whether relevant information oneself supports reverse audio transmission ability to identify, so that according to the relevant information of this increase, the source device of correspondence or mobile unit can find that surrounding possesses the equipment of respective opposed audio transmission ability, this is not repeated by the embodiment of the present invention.
Further, identical with the associated description in the embodiment of the present invention one, for Miracast technology, described first, second extended capability negotiation message can for being used for consulting the WFDExtendedCapabilities message of source and the sink extended capability supported in existing Miracast1.0 specification.That is, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, can Miracast1.0 specification defined be used for consult the WFDExtendedCapabilities message of source and the sink extended capability supported is carried corresponding, for representing whether relevant device has the identification information of reverse audio transmission ability, such as the first mark or the second mark.
Specifically, in embodiment one, the WFDExtendedCapabilitiesBitmap shown in table 1 is known, message field corresponding to WFDExtendedCapabilities message exists multiple still untapped setting reserved bit (such as 6-15 position), therefore, it is contemplated that one (such as the 6th etc.) in above-mentioned setting reserved bit is extended, it can be used as reverse voice data transmittability to support position.Namely, described first mark specifically can be represented by the concrete value of this setting reserved bit in the message field corresponding to described first extended capability negotiation message, when as described in first mark be used for representing that relevant device does not support reverse audio transmission ability time, the value of this setting reserved bit can be 0b0, when described first mark is used for representing the reverse audio transmission ability of relevant device support, the value of this setting reserved bit can be 0b1；Described second mark specifically can be represented by the concrete value of this setting reserved bit in the message field corresponding to described second extended capability negotiation message, when as described in second mark be used for representing that relevant device does not support reverse audio transmission ability time, the value of this setting reserved bit can be 0b0, when described second mark is used for representing the reverse audio transmission ability of relevant device support, the value of this setting reserved bit can be 0b1, and this is not repeated by the embodiment of the present invention.
Step 202: described mobile unit is if it is determined that self and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
Specifically, for Miracast technology, mobile unit and source device can carry out the negotiation of reverse audio transmission port in the capability negotiation stage that existing Miracast1.0 specification is defined, and, with reference to the audio, video data port used when consulting to transmit from source to sink audio, video data between source and sink involved in Miracast1.0 specification flow process it can be seen that described reverse audio transmission port concrete consult flow process can as described in step B1-B4:
Step B1: receive the parameter acquiring request message that described source device sends, carry the backward end slogan for consulting reverse audio transmission port numbers in described parameter acquiring request message and consult parameter field.
Wherein, described parameter acquiring request message can be M3request message, and the backward end slogan negotiation parameter field carried in this parameter acquiring request message can be wfd-reverse-audio-port parameter field, additionally, being specifically defined of described wfd-reverse-audio-port parameter field referring to described in relevant in embodiment one, can repeat part and repeat no more.
Step B2: the described parameter acquiring request message according to receiving obtains response message to described source device return parameters, carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consult parameter field in described parameter acquiring response message.
Specifically, described parameter acquiring response message can be M3response message, and this is not repeated by the embodiment of the present invention.
Step B3: receive the parameter setting request message that described source device returns according to described parameter acquiring response message, carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field in described parameter setting request message；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported.
Specifically, described parameter setting request message can be M4request message, and this is not repeated by the embodiment of the present invention.
Step B4: according to the reverse audio transmission port numbers carried in described parameter setting request message, it is determined that the reverse audio transmission port numbers consulted with described source device.
So far, the negotiation of reverse audio transmission port numbers can be realized.
Further, it should be noted that, after consulting reverse audio transmission port numbers, described mobile unit reverse audio transmission port numbers through consultation can carry out the transmission of voice data with corresponding source device, for Miracast technology, concrete data transmission stream journey can be similar with the data transmission procedure of existing Miracast1.0 specification, and this is not repeated by the embodiment of the present invention.
That is, in technical scheme described in the embodiment of the present invention two, mobile unit can carry out the negotiation of reverse audio transmission ability with source device, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with source device and utilize the reverse audio transmission port of negotiation and source device to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, solve existing multi-screen interactive technology, the problem not supporting the vehicular applications scene of the reverse or even two-way audio data transmission between mobile unit and source device such as Miracast technology, extend multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment three
The embodiment of the present invention three performs alternately for source device and mobile unit, data transmission method described in the embodiment of the present invention one or embodiment two is further described, as shown in Figure 3, it is the schematic flow sheet of data transmission method described in the embodiment of the present invention three, and described method can comprise the following steps that
Step 301: source device sends the first extended capability negotiation message carrying the first mark to mobile unit, and described first mark is used for representing whether described source device has reverse audio transmission ability.
Wherein, for Miracast technology, described first extended capability negotiation message can for being used for consulting the WFDExtendedCapabilities message of source and the sink extended capability supported in existing Miracast1.0 specification.And, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, described first mark specifically can be represented by the concrete value of the setting reserved bit in the message field corresponding to described first extended capability negotiation message, when as described in first mark be used for representing that relevant device does not support reverse audio transmission ability time, the value of this setting reserved bit can be 0b0, when described first mark is used for representing the reverse audio transmission ability of relevant device support, the value of this setting reserved bit can be 0b1, this is not repeated by the embodiment of the present invention.
Step 302: mobile unit receives described first extended capability negotiation message, and determine whether source device and both mobile units all support reverse audio transmission ability according to the first mark carried in described first extended capability negotiation message and the extended capability self having, if, then perform step 303, if not, then can return for representing that described source device not all supports the response message of reverse audio transmission ability with described mobile unit to source device, so that described source device is according to this response message, terminate this reverse audio transmission capability negotiation flow process.
Step 303: mobile unit returns for representing that described source device and described mobile unit all support the response message of reverse audio transmission ability to source device.
So far, the negotiation of reverse audio transmission ability between mobile unit and source device can be realized.
Further, however, it is determined that source device and mobile unit all support reverse audio transmission ability, then continue executing with following steps to carry out the negotiation of reverse audio transmission port:
Step 304: source device sends parameter acquiring request message to mobile unit, carries the backward end slogan for consulting reverse audio transmission port numbers and consult parameter field in described parameter acquiring request message.
Step 305: mobile unit receives described parameter acquiring request message, and ask message to obtain response message to described source device return parameters according to described parameter acquiring, described parameter acquiring response message carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field.
Step 306: source device is according to described parameter acquiring response message, request message is set to described mobile unit return parameters, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported.
Step 307: mobile unit receives described parameter setting request message, and according to the reverse audio transmission port numbers carried in described parameter setting request message, it is determined that the reverse audio transmission port numbers consulted with described source device.
So far, the negotiation of reverse audio transmission port numbers can be realized.
Further, it should be noted that, after consulting reverse audio transmission port numbers, described source device and described mobile unit reverse audio transmission port numbers through consultation can carry out the transmission of voice data, for Miracast technology, concrete data transmission stream journey can be similar with the data transmission procedure of existing Miracast1.0 specification, and this is not repeated by the embodiment of the present invention.
Additionally, it should be noted that, source device when carrying out the negotiation of reverse audio transmission ability with mobile unit, except can adopting the judgment mode of operation whether all supporting reverse audio transmission ability both mobile unit execution judges described in above-mentioned steps 301～step 304, may be used without being performed to judge whether the two all supports the judgment mode of the operation of reverse audio transmission ability by described source device, now, the negotiation flow process of corresponding reverse audio transmission ability can comprise the following steps that
Step S1: source device receives the second extended capability negotiation message carrying the second mark that mobile unit sends, and described second mark is used for representing whether described mobile unit has reverse audio transmission ability.
Wherein, for Miracast technology, described second extended capability negotiation message can for being used for consulting the WFDExtendedCapabilities message of source and the sink extended capability supported in existing Miracast1.0 specification.And, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, described second mark specifically can be represented by the concrete value of the setting reserved bit in the message field corresponding to described second extended capability negotiation message, when as described in second mark be used for representing that relevant device does not support reverse audio transmission ability time, the value of this setting reserved bit can be 0b0, when described second mark is used for representing the reverse audio transmission ability of relevant device support, the value of this setting reserved bit can be 0b1, this is not repeated by the embodiment of the present invention.
Step S2: according to the second mark carried in described second extended capability negotiation message and the extended capability self having, source device determines whether the two all supports reverse audio transmission ability, if, then perform step S3, if not, then can return for representing that described source device not all supports the response message of reverse audio transmission ability with described mobile unit to mobile unit, and terminate this reverse audio transmission capability negotiation flow process.
Step S3: source device returns for representing that described mobile unit and described source device all support the response message of reverse audio transmission ability to mobile unit, to complete the negotiation of this reverse audio transmission ability.
That is, in technical scheme described in the embodiment of the present invention three, source device can carry out the negotiation of reverse audio transmission ability with mobile unit, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with mobile unit and utilize the reverse audio transmission port of negotiation and mobile unit to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, solve existing multi-screen interactive technology, the problem not supporting the vehicular applications scene of the reverse or even two-way audio data transmission between mobile unit and source device such as Miracast technology, extend multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment four
In order to support the mobile unit Reverse Turning Control to source device, the embodiment of the present invention four provides a kind of Reverse Turning Control method, and as shown in Figure 4, it is the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention four, and described method can comprise the following steps that
Step 401: source device is if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device supports the reverse input capability message of the mark of onboard control device type towards periphery.
Wherein, described for representing that described source device is supported in the type field that the mark of onboard control device type can be located at described reverse input capability message.Specifically, for Miracast technology, described reverse input capability message can be wfd-uibc-capability message defined in Miracast1.0 specification, its type field can be inp-type.
That is, for Miracast technology, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, the mode of wfd-uibc-capability message can be modified, corresponding onboard control device type is increased in the type field that it is corresponding, so that sink according to whether carrying in described wfd-uibc-capability message for representing that described source device supports the mark of vehicle-mounted Reverse Turning Control device type, can determine whether source device supports onboard control device type.
Specifically, supported Reverse Turning Control device type it has been added with in original inp-type territory of wfd-uibc-capability message, such as " Keyboard ", " Mouse ", " SingleTouch ", " MultiTouch ", " Joystick ", " Camera ", " Gesture " or " RemoteControl " etc., newly added in inp-type territory " Carkit " or other mark for marking source devices relevant to onboard control device type can supporting onboard control device type on this basis, this is not repeated by the embodiment of the present invention.
Step 402: if receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
Wherein, for Miracast technology, described Reverse Turning Control universal information can be the Genericinput message of definition in existing Miracast1.0 specification, namely for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, by Genericinput message is modified, can carry corresponding vehicle-mounted Reverse Turning Control information.
Specifically, the form possessed according to the message body of Genericinput message in the existing Miracast1.0 specification shown in table 2 is known, the control information corresponding to each input equipment entrained in described Genericinput message generally can include the universal input type identification corresponding to described control information and the specifying information description etc. of described control information, therefore, correspondingly, described vehicle-mounted Reverse Turning Control information entrained in amended Genericinput message generally also can include the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and the specifying information description etc. of described vehicle-mounted Reverse Turning Control information, this is not repeated by the embodiment of the present invention.
The form that the message body of table 2:Genericinput message possesses
Table 3: each possible conventional data type of definition in existing Miracast1.0 specification
Further, for compatible existing Miracast1.0 specification, make its amendment carried out as far as possible little, in embodiment of the present invention, universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information can be located in the universal input type identification territory (i.e. GenericInputTypeID territory) of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes in the description field (i.e. Describe territory) that can be located at described Reverse Turning Control universal information.Further, further, the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information specifically can be represented by the bit-identify corresponding to the setting reserved bit in the universal input type identification territory of described Reverse Turning Control universal information.As, the 9th of the universal input type identification territory of described Reverse Turning Control universal information can set the reserved bit reserved bit of 9 (the namely corresponding bit-identify as) be extended, make its corresponding bit-identify in order to represent the universal input type corresponding to vehicle-mounted Reverse Turning Control information.Specifically, when setting the reserved bit reserved bit of 9 (the namely corresponding bit-identify as) to the described 9th and being extended, the relevant explanation (i.e. Notes) that described 9th sets reserved bit can being set to Carkit, this is not repeated by the embodiment of the present invention.
Further, the specifying information description of described vehicle-mounted Reverse Turning Control information can include one or more in following information:
For representing the control push-button type information that control push-button type is button or knob (knob) of described vehicle-mounted Reverse Turning Control information, i.e. Keytype information；Specifically, when the value of described Keytype is 1, can represent that control push-button type is button, when the value of described Keytype is 2, can represent that control push-button type is knob；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information, i.e. Keyvalue1 information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information can be used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting, now, its concrete value can be 1,2 etc., wherein, when value is 1, can represent and press, can represent when value is 2 and lift；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information can be used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise, now, its value can represent the integer part of the angle that knob rotates, and, when its value on the occasion of time can represent rotation counterclockwise, can represent when its value is negative value and turn clockwise, that is, now, the concrete value of Keyvalue1 can be determined according to the actual rotational case of turn-knob, and, now, Keyvalue1 is except can indicate whether to turn clockwise, also can represent the integer angle of rotation, this is not limited in any way by the embodiment of the present invention；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information, i.e. Keycode information；Specifically, the value of Keycode can be determined according to the value of actual key, and this is not repeated by the embodiment of the present invention, as when the value of Keycode is 1, represented button 1, when its value is 2, represents button 2 etc.；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation (being generally the fractional part of the anglec of rotation) corresponding to described vehicle-mounted Reverse Turning Control information, i.e. Keyvalue2；Specifically, the concrete value of Keyvalue2 can be determined according to the actual rotational case of turn-knob, and this is not limited in any way by the embodiment of the present invention.
Further, according to foregoing description it can be seen that in embodiment of the present invention, the message structure that the specifying information of described vehicle-mounted Reverse Turning Control information describes in Describe territory specifically can be as shown in the following Table 4:
Table 4: the message structure that the specifying information of vehicle-mounted Reverse Turning Control information describes
Correspondingly, if receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information, it is possible to including:
According to the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information, the input equipment type determining this Reverse Turning Control is mobile unit, and the specifying information according to described vehicle-mounted Reverse Turning Control information describes, perform to control operation accordingly, send voice data to corresponding mobile unit as sent or stopping, or raise or reduce the sound size etc. of the voice data being sent to corresponding mobile unit.
That is, in technical scheme described in the embodiment of the present invention four, source device can when determining that self supports onboard control device type, each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery, with by each mobile unit around according to described reverse input capability message, determine when source device supports onboard control device type, by sending the mode of the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to source device, source device is carried out Reverse Turning Control, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology, as Miracast technology does not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment five
The embodiment of the present invention five is for mobile unit for action executing side, Reverse Turning Control method described in the embodiment of the present invention four is further described, as it is shown in figure 5, it is the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention five, described method can comprise the following steps that
Step 501: mobile unit receives the reverse input capability message of source device broadcast.
Wherein, when described source device supports onboard control device type, described reverse input capability message, in wfd-uibc-capability message, portability has the mark supporting onboard control device type for source device as described in representing, such as Carkit etc..Specifically, described for representing that described source device is supported in the type field (i.e. int-type territory) that the mark of onboard control device type may generally reside in described reverse input capability message.
Step 502: if it is determined that carry for representing that described source device is supported the mark of onboard control device type and determines that source device need to be carried out Reverse Turning Control by self in described reverse input capability message, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
Wherein, described Reverse Turning Control universal information can be Genericinput message, and entrained described vehicle-mounted Reverse Turning Control information generally can include the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and the specifying information description etc. of described vehicle-mounted Reverse Turning Control information in described Genericinput message, this is not repeated by the embodiment of the present invention.
Specifically, universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information can be located in the universal input type identification territory (i.e. GenericInputTypeID territory) of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes in the description field (i.e. Describe territory) that can be located at described Reverse Turning Control universal information.And, further, universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information specifically can be represented by the bit-identify corresponding to the setting reserved bit (such as the 9th reserved bit) in the universal input type identification territory of described Reverse Turning Control universal information, and this is not repeated by the embodiment of the present invention.
Further, the specifying information description of described vehicle-mounted Reverse Turning Control information can include one or more in following information:
For representing the control push-button type information that control push-button type is button or knob (knob) of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information can be used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information can be used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation (being generally the fractional part of the anglec of rotation) corresponding to described vehicle-mounted Reverse Turning Control information.
Further, the specifying information of described vehicle-mounted Reverse Turning Control information message structure in Describe territory is described specifically can shown in the table 4 in embodiment four, this is not repeated by the embodiment of the present invention.
In technical scheme described in the embodiment of the present invention five, when mobile unit can carry for representing that described source device is supported the mark of onboard control device type and determines that source device need to be carried out Reverse Turning Control by self in determining the reverse input capability message that source device is broadcasted, the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information is sent to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology, as Miracast technology does not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment six
The embodiment of the present invention six performs alternately for source device and mobile unit, Reverse Turning Control method described in the embodiment of the present invention four or embodiment five is further described, as shown in Figure 6, it is the schematic flow sheet of Reverse Turning Control method described in the embodiment of the present invention six, and described method can comprise the following steps that
Step 601: source device is if it is determined that self supports onboard control device type, then each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery.
Wherein, described for representing that described source device is supported in the type field that the mark of onboard control device type can be located at described reverse input capability message.
Step 602: mobile unit receives the Reverse Turning Control capabilities message of described source device broadcast, and according to the mark for representing described source device support onboard control device type carried in described Reverse Turning Control capabilities message, it is determined that described source device supports vehicle-mounted Reverse Turning Control device type.
Step 603: mobile unit if it is determined that described source device need to carry out self Reverse Turning Control (namely there is the demand carrying out Reverse Turning Control), then sends the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to described source device.
Wherein, described vehicle-mounted Reverse Turning Control information can include the specifying information description of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information.And, universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information can be located in the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes in the description field that can be located at described Reverse Turning Control universal information.
Further, the associated description according to embodiment four or embodiment five is restrained, the specifying information description of described vehicle-mounted Reverse Turning Control information can include one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
Step 604: the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that source device sends according to mobile unit, perform to control operation accordingly, send voice data to corresponding mobile unit as sent or stopping, or raise or reduce the sound size etc. of the voice data being sent to corresponding mobile unit.
Specifically, described source device can universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information, the input equipment type determining this Reverse Turning Control is mobile unit, and the specifying information according to described vehicle-mounted Reverse Turning Control information describes, and performs to control operation accordingly.
That is, in technical scheme described in the embodiment of the present invention six, source device can when determining that self supports onboard control device type, each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery, with by each mobile unit around according to described reverse input capability message, determine when source device supports onboard control device type, by sending the mode of the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to source device, source device is carried out Reverse Turning Control, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology, as Miracast technology does not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand multi-screen interactive technology, use scene such as Miracast technology.It addition, the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention, such as Miracast1.0 specification, improvement is little, also has the advantages such as easy realization.
Embodiment seven:
Based on the inventive concept identical with the embodiment of the present invention one, the embodiment of the present invention seven provides a kind of terminal unit, described terminal unit can be the terminal unit such as mobile phone or panel computer, and this terminal unit be embodied as can referring to the associated description in said method embodiment one, repeat part repeat no more.Specifically, as it is shown in fig. 7, the structural representation that it is described terminal unit, described terminal unit specifically comprises the steps that
Capability negotiation unit 71, can be used for carrying out the negotiation of reverse audio transmission ability with mobile unit；
Port negotiation unit 72, can be used for if it is determined that described terminal unit and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
Alternatively, described capability negotiation unit 71 is particularly used in and sends, to described mobile unit, the first extended capability negotiation message (such as WFDExtendedCapabilities message) carrying the first mark, described first mark is used for representing whether described terminal unit has reverse audio transmission ability, with the extended capability self possessed according to described first mark carried in described first extended capability negotiation message and described mobile unit by described mobile unit, it is judged that whether described terminal unit and described mobile unit all support reverse audio transmission ability；And, if receive that described mobile unit returns for representing that described terminal unit and described mobile unit all support the response message of reverse audio transmission ability, then determine that described terminal unit and described mobile unit all support reverse audio transmission ability, otherwise, it is determined that described terminal unit not all supports reverse audio transmission ability with described mobile unit；Or,
Being particularly used in and receive the second extended capability negotiation message carrying the second mark that described mobile unit sends, described second mark is used for representing whether described mobile unit has reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines the reverse audio transmission ability of described mobile unit support, and the extended capability self possessed according to described source device determines and self also supports reverse audio transmission ability, it is determined that described source device and described mobile unit all support reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines that described mobile unit does not support reverse audio transmission ability, or, the extended capability self possessed according to described source device is determined and self is not supported reverse audio transmission ability, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit.
Wherein, described first mark can be represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；Described second mark can be represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
Further, described port negotiation unit 72 is particularly used in and sends parameter acquiring request message to described mobile unit, carries the backward end slogan for consulting reverse audio transmission port numbers and consult parameter field (the wfd-reverse-audio-port parameter field as newly defined) in described parameter acquiring request message；And receive the parameter acquiring response message that described mobile unit asks message to return for described parameter acquiring, described parameter acquiring response message carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field；And, according to described parameter acquiring response message, to described mobile unit return parameters, request message is set, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described terminal unit and consults parameter field, to inform the reverse audio transmission port numbers that described both mobile units are consulted；Wherein, the reverse audio transmission port numbers selected by described terminal unit is that described terminal unit is selected from the reverse audio transmission port numbers that described mobile unit is supported.
Further, based on the inventive concept identical with the embodiment of the present invention two, the embodiment of the present invention seven additionally provides a kind of mobile unit, described mobile unit can be the equipment such as on-vehicle Bluetooth or vehicle mounted guidance, and this mobile unit be embodied as can referring to the associated description in said method embodiment two, repeat part repeat no more.Specifically, as shown in Figure 8, it is the structural representation of described mobile unit, and described mobile unit specifically comprises the steps that
Capability negotiation unit 81, can be used for carrying out the negotiation of reverse audio transmission ability with source device；
Port negotiation unit 82, can be used for if it is determined that described mobile unit and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
Alternatively, described capability negotiation unit 81 is particularly used in and receives the first extended capability negotiation message carrying the first mark that described source device sends, and described first mark is used for representing whether described mobile unit has reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines the reverse audio transmission ability of described source device support, and the extended capability self possessed according to described mobile unit determines and self also supports reverse audio transmission ability, it is determined that described mobile unit and described source device all support reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines that described source device does not support reverse audio transmission ability, or, the extended capability self possessed according to described mobile unit is determined and self is not supported reverse audio transmission ability, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device；Or,
It is particularly used in and sends, to described source device, the second extended capability negotiation message carrying the second mark, described second mark is used for representing whether described mobile unit has reverse audio transmission ability, with the extended capability self possessed according to described second mark carried in described second extended capability negotiation message and described source device by described source device, it is judged that whether described mobile unit and described source device all support reverse audio transmission ability；And, if receive that described source device returns for representing that described mobile unit and described source device all support the response message of reverse audio transmission ability, then determine that described mobile unit and described source device all support reverse audio transmission ability, otherwise, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device.
Wherein, described first mark can be represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；Described second mark can be represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
Further, described port negotiation unit 82 is particularly used in and receives the parameter acquiring request message that described source device sends, and carries the backward end slogan for consulting reverse audio transmission port numbers and consult parameter field in described parameter acquiring request message；And obtain response message according to the described parameter acquiring request message received to described source device return parameters, described parameter acquiring response message carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field；And, receive the parameter setting request message that described source device returns according to described parameter acquiring response message, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported；And according to the reverse audio transmission port numbers carried in described parameter setting request message, it is determined that the reverse audio transmission port numbers consulted with described source device.
Further, based on the inventive concept identical with the embodiment of the present invention four, the embodiment of the present invention seven additionally provides another kind of terminal unit, described another kind of terminal unit can be the terminal unit such as mobile phone or panel computer, and this another kind terminal unit be embodied as can referring to the associated description in said method embodiment four, repeat part repeat no more.Specifically, as it is shown in figure 9, the structural representation that it is described another kind of terminal unit, described another kind of terminal unit specifically comprises the steps that
Transmitting element 91, can be used for if it is determined that described terminal unit supports onboard control device type, then each device broadcasts carries for representing that described terminal unit supports the reverse input capability message of the mark of onboard control device type towards periphery；Wherein, described for representing that described terminal unit is supported in the type field that the mark of vehicle-mounted Reverse Turning Control device type can be located at described reverse input capability message；
Receive unit 92, can be used for receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that mobile unit sends；Wherein, described vehicle-mounted Reverse Turning Control information can include the specifying information of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information and describe, and the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information is positioned at the universal input type identification territory of described Reverse Turning Control universal information, the specifying information of described vehicle-mounted Reverse Turning Control information describes the description field being positioned at described Reverse Turning Control universal information；
Processing unit 93, can be used for controlling accordingly operation according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
It is further to note that the specifying information description of described vehicle-mounted Reverse Turning Control information can include one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
Further, based on the inventive concept identical with the embodiment of the present invention five, the embodiment of the present invention seven additionally provides another kind of mobile unit, described another kind of mobile unit can be the equipment such as on-vehicle Bluetooth or vehicle mounted guidance, and this another kind mobile unit be embodied as can referring to the associated description in said method embodiment five, repeat part repeat no more.Specifically, as shown in Figure 10, it is the structural representation of described another kind of mobile unit, and described another kind of mobile unit specifically comprises the steps that
Receive unit 101, can be used for receiving the reverse input capability message of source device broadcast；
Processing unit 102, for if it is determined that described reverse input capability message carries for representing that described source device is supported the mark of onboard control device type and determines that described source device need to be carried out Reverse Turning Control by self, then triggering transmitting element 103 and send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device；
Transmitting element 103, can be used for the triggering according to described processing unit 102, sends the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
Wherein, described vehicle-mounted Reverse Turning Control information can include the specifying information description of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information.
And, described for representing that described source device is supported in the type field that the mark of onboard control device type can be located at described reverse input capability message；Universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information can be located in the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes in the description field that can be located at described Reverse Turning Control universal information.
It is further to note that the specifying information description of described vehicle-mounted Reverse Turning Control information can include one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
Further, based on the inventive concept identical with the embodiment of the present invention one～tri-, the embodiment of the present invention seven additionally provides a kind of data transmission system, and being embodied as of this data transmission system can referring to the associated description in said method embodiment one～tri-, and repetition part repeats no more.Specifically, as shown in figure 11, it is the structural representation of described data transmission system, and described data transmission system specifically can include source device 111 and mobile unit 112, wherein:
Described source device 111, can be used for carrying out the negotiation of reverse audio transmission ability with described mobile unit 112, and, if it is determined that self and described mobile unit 112 all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit 112, and utilize the reverse audio transmission port of negotiation and described mobile unit 112 to carry out the transmission of voice data；
Described mobile unit 112, can be used for carrying out the negotiation of reverse audio transmission ability with described source device 111, and, if it is determined that self and described source device 111 all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device 111, and utilize the reverse audio transmission port of negotiation and described source device 111 to carry out the transmission of voice data.
Further, based on the inventive concept identical with the embodiment of the present invention four～six, the embodiment of the present invention seven additionally provides a kind of revertive control system, and being embodied as of described revertive control system can referring to the associated description in said method embodiment four～six, and repetition part repeats no more.Specifically, as shown in figure 12, it is the structural representation of described revertive control system, and described revertive control system specifically can include source device 121 and mobile unit 122, wherein:
Described source device 121, can be used for if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device 121 supports the reverse input capability message of the mark of onboard control device type towards periphery；And, if receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit 122 sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information；
Described mobile unit 122, for receiving the reverse input capability message of described source device 121 broadcast, and if it is determined that described reverse input capability message carries for representing that described source device 121 is supported the mark of onboard control device type and determines that described source device 121 need to be carried out Reverse Turning Control by self, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device 121, to indicate described source device 121 to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
The embodiment of the present invention seven provides a kind of data transmission and Reverse Turning Control relevant device and system, in technical scheme described in the embodiment of the present invention seven, source device can carry out the negotiation of reverse audio transmission ability with mobile unit, and after determining the reverse audio transmission ability of both supports, consult the reverse audio transmission port for transmitting voice data with mobile unit and utilize the reverse audio transmission port of negotiation and mobile unit to carry out the transmission of voice data, it is achieved thereby that the transmission of the reverse or even two-way audio data between mobile unit and source device, solve existing multi-screen interactive technology, the problem not supporting the vehicular applications scene of the reverse or even two-way audio data transmission between mobile unit and source device such as Miracast technology, extend multi-screen interactive technology, use scene such as Miracast technology.
Additionally, in technical scheme described in the embodiment of the present invention seven, source device also can when determining that self supports onboard control device type, each device broadcasts carries the reverse input capability message for representing the mark self supporting onboard control device type towards periphery, with by each mobile unit around according to described reverse input capability message, determine when source device supports onboard control device type, by sending the mode of the Reverse Turning Control universal information carrying corresponding vehicle-mounted Reverse Turning Control information to source device, source device is carried out Reverse Turning Control, it is achieved thereby that the Reverse Turning Control that mobile unit is to source device, solve existing multi-screen interactive technology, as Miracast technology does not support the mobile unit problem to the vehicular applications scene of the Reverse Turning Control of source device, further expand multi-screen interactive technology, use scene such as Miracast technology.
Further, due to the compatible existing multi-screen interactive agreement of technical scheme described in the embodiment of the present invention seven, such as Miracast1.0 specification, improvement is little, thus also has the advantages such as easy realization.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment) or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect.And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, device (equipment) and computer program describe.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the present invention can be carried out various change and modification without deviating from the spirit and scope of the present invention by those skilled in the art.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (34)

1. a data transmission method, it is characterised in that including:
Source device and mobile unit carry out the negotiation of reverse audio transmission ability；
If it is determined that self and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
2. the method for claim 1, it is characterised in that source device and mobile unit carry out the negotiation of reverse audio transmission ability, including:
The the first extended capability negotiation message carrying the first mark is sent to described mobile unit, described first mark is used for representing whether described source device has reverse audio transmission ability, with the extended capability self possessed according to described first mark carried in described first extended capability negotiation message and described mobile unit by described mobile unit, it is judged that whether described source device and described mobile unit all support reverse audio transmission ability；And, if receive that described mobile unit returns for representing that described source device and described mobile unit all support the response message of reverse audio transmission ability, then determine that described source device and described mobile unit all support reverse audio transmission ability, otherwise, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit；
Or,
Receiving the second extended capability negotiation message carrying the second mark that described mobile unit sends, described second mark is used for representing whether described mobile unit has reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines the reverse audio transmission ability of described mobile unit support, and the extended capability self possessed according to described source device determines and self also supports reverse audio transmission ability, it is determined that described source device and described mobile unit all support reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines that described mobile unit does not support reverse audio transmission ability, or, the extended capability self possessed according to described source device is determined and self is not supported reverse audio transmission ability, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit.
3. method as claimed in claim 2, it is characterised in that
Described first mark is represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；
Described second mark is represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
4. the method as described in as arbitrary in claims 1 to 3, it is characterised in that described and described mobile unit consults the reverse audio transmission port for transmitting voice data, including:
Send parameter acquiring request message to described mobile unit, described parameter acquiring request message carries the backward end slogan for consulting reverse audio transmission port numbers and consults parameter field；
Receive the parameter acquiring response message that described mobile unit asks message to return for described parameter acquiring, described parameter acquiring response message carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field；
According to described parameter acquiring response message, to described mobile unit return parameters, request message is set, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field, to inform the reverse audio transmission port numbers that described both mobile units are consulted；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported.
5. a data transmission method, it is characterised in that including:
Mobile unit and source device carry out the negotiation of reverse audio transmission ability；
If it is determined that self all supports reverse audio transmission ability with described source device, then consult the reverse audio transmission port for transmitting voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
6. method as claimed in claim 5, it is characterised in that mobile unit and source device carry out the negotiation of reverse audio transmission ability, including:
Receiving the first extended capability negotiation message carrying the first mark that described source device sends, described first mark is used for representing whether described mobile unit has reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines the reverse audio transmission ability of described source device support, and the extended capability self possessed according to described mobile unit determines and self also supports reverse audio transmission ability, it is determined that described mobile unit and described source device all support reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines that described source device does not support reverse audio transmission ability, or, the extended capability self possessed according to described mobile unit is determined and self is not supported reverse audio transmission ability, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device；
Or,
The the second extended capability negotiation message carrying the second mark is sent to described source device, described second mark is used for representing whether described mobile unit has reverse audio transmission ability, with the extended capability self possessed according to described second mark carried in described second extended capability negotiation message and described source device by described source device, it is judged that whether described mobile unit and described source device all support reverse audio transmission ability；And, if receive that described source device returns for representing that described mobile unit and described source device all support the response message of reverse audio transmission ability, then determine that described mobile unit and described source device all support reverse audio transmission ability, otherwise, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device.
7. method as claimed in claim 6, it is characterised in that
Described first mark is represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；
Described second mark is represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
8. the method as described in as arbitrary in claim 5～7, it is characterised in that described and described source device consults the reverse audio transmission port for transmitting voice data, including:
Receive the parameter acquiring request message that described source device sends, described parameter acquiring request message carries the backward end slogan for consulting reverse audio transmission port numbers and consults parameter field；
Described parameter acquiring request message according to receiving obtains response message to described source device return parameters, carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consult parameter field in described parameter acquiring response message；
Receive the parameter setting request message that described source device returns according to described parameter acquiring response message, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported；
According to the reverse audio transmission port numbers carried in described parameter setting request message, it is determined that the reverse audio transmission port numbers consulted with described source device.
9. a Reverse Turning Control method, it is characterised in that including:
Source device is if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device supports the reverse input capability message of the mark of onboard control device type towards periphery；
If receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
10. method as claimed in claim 9, it is characterised in that described vehicle-mounted Reverse Turning Control information includes the specifying information of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information and describes.
11. method as claimed in claim 10, it is characterised in that
Described for representing that described source device supports the type field that the mark of vehicle-mounted Reverse Turning Control device type is positioned at described reverse input capability message；
Universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information is positioned at the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes the description field being positioned at described Reverse Turning Control universal information.
12. the method as described in claim 10 or 11, it is characterised in that the specifying information description of described vehicle-mounted Reverse Turning Control information includes one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
13. a Reverse Turning Control method, it is characterised in that including:
Mobile unit receives the reverse input capability message of source device broadcast；
If it is determined that described reverse input capability message carries for representing that described source device supports the mark of onboard control device type, and determine that described source device need to be carried out Reverse Turning Control by self, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
14. method as claimed in claim 13, it is characterised in that described vehicle-mounted Reverse Turning Control information includes the specifying information of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information and describes.
15. method as claimed in claim 14, it is characterised in that
Described for representing that described source device supports the type field that the mark of onboard control device type is positioned at described reverse input capability message；
Universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information is positioned at the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes the description field being positioned at described Reverse Turning Control universal information.
16. the method as described in claims 14 or 15, it is characterised in that the specifying information description of described vehicle-mounted Reverse Turning Control information includes one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
17. a terminal unit, it is characterised in that including:
Capability negotiation unit, for carrying out the negotiation of reverse audio transmission ability with mobile unit；
Port negotiation unit, for if it is determined that described terminal unit and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data.
18. terminal unit as claimed in claim 17, it is characterised in that
Described capability negotiation unit, specifically for sending the first extended capability negotiation message carrying the first mark to described mobile unit, described first mark is used for representing whether described terminal unit has reverse audio transmission ability, with the extended capability self possessed according to described first mark carried in described first extended capability negotiation message and described mobile unit by described mobile unit, it is judged that whether described terminal unit and described mobile unit all support reverse audio transmission ability；And, if receive that described mobile unit returns for representing that described terminal unit and described mobile unit all support the response message of reverse audio transmission ability, then determine that described terminal unit and described mobile unit all support reverse audio transmission ability, otherwise, it is determined that described terminal unit not all supports reverse audio transmission ability with described mobile unit；
Or,
Specifically for receiving the second extended capability negotiation message carrying the second mark that described mobile unit sends, described second mark is used for representing whether described mobile unit has reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines the reverse audio transmission ability of described mobile unit support, and the extended capability self possessed according to described source device determines and self also supports reverse audio transmission ability, it is determined that described source device and described mobile unit all support reverse audio transmission ability；If described second mark according to carrying in described second extended capability negotiation message determines that described mobile unit does not support reverse audio transmission ability, or, the extended capability self possessed according to described source device is determined and self is not supported reverse audio transmission ability, it is determined that described source device not all supports reverse audio transmission ability with described mobile unit.
19. terminal unit as claimed in claim 18, it is characterised in that
Described first mark is represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；
Described second mark is represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
20. the terminal unit as described in as arbitrary in claim 17～19, it is characterised in that
Described port negotiation unit, specifically for sending parameter acquiring request message to described mobile unit, carries the backward end slogan for consulting reverse audio transmission port numbers in described parameter acquiring request message and consults parameter field；And
Receive the parameter acquiring response message that described mobile unit asks message to return for described parameter acquiring, described parameter acquiring response message carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consults parameter field；And,
According to described parameter acquiring response message, to described mobile unit return parameters, request message is set, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described terminal unit and consults parameter field, to inform the reverse audio transmission port numbers that described both mobile units are consulted；Wherein, the reverse audio transmission port numbers selected by described terminal unit is that described terminal unit is selected from the reverse audio transmission port numbers that described mobile unit is supported.
21. a mobile unit, it is characterised in that including:
Capability negotiation unit, for carrying out the negotiation of reverse audio transmission ability with source device；
Port negotiation unit, for if it is determined that described mobile unit and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
22. mobile unit as claimed in claim 21, it is characterised in that
Described capability negotiation unit, specifically for receiving the first extended capability negotiation message carrying the first mark that described source device sends, described first mark is used for representing whether described mobile unit has reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines the reverse audio transmission ability of described source device support, and the extended capability self possessed according to described mobile unit determines and self also supports reverse audio transmission ability, it is determined that described mobile unit and described source device all support reverse audio transmission ability；If described first mark according to carrying in described first extended capability negotiation message determines that described source device does not support reverse audio transmission ability, or, the extended capability self possessed according to described mobile unit is determined and self is not supported reverse audio transmission ability, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device；
Or,
Specifically for sending the second extended capability negotiation message carrying the second mark to described source device, described second mark is used for representing whether described mobile unit has reverse audio transmission ability, with the extended capability self possessed according to described second mark carried in described second extended capability negotiation message and described source device by described source device, it is judged that whether described mobile unit and described source device all support reverse audio transmission ability；And, if receive that described source device returns for representing that described mobile unit and described source device all support the response message of reverse audio transmission ability, then determine that described mobile unit and described source device all support reverse audio transmission ability, otherwise, it is determined that described mobile unit not all supports reverse audio transmission ability with described source device.
23. mobile unit as claimed in claim 22, it is characterised in that
Described first mark is represented by the value of the setting reserved bit in the message field of described first extended capability negotiation message；
Described second mark is represented by the value of the setting reserved bit in the message field of described second extended capability negotiation message.
24. the mobile unit as described in as arbitrary in claim 21～23, it is characterised in that
Described port negotiation unit, specifically for receiving the parameter acquiring request message that described source device sends, carries the backward end slogan for consulting reverse audio transmission port numbers in described parameter acquiring request message and consults parameter field；And
Described parameter acquiring request message according to receiving obtains response message to described source device return parameters, carries the backward end slogan being added with the reverse audio transmission port numbers that described mobile unit is supported and consult parameter field in described parameter acquiring response message；And,
Receive the parameter setting request message that described source device returns according to described parameter acquiring response message, described parameter setting request message carries the backward end slogan being added with the reverse audio transmission port numbers selected by described source device and consults parameter field；Wherein, the reverse audio transmission port numbers selected by described source device is that described source device is selected from the reverse audio transmission port numbers that described mobile unit is supported；And
According to the reverse audio transmission port numbers carried in described parameter setting request message, it is determined that the reverse audio transmission port numbers consulted with described source device.
25. a terminal unit, it is characterised in that including:
Transmitting element, for if it is determined that described terminal unit supports onboard control device type, then each device broadcasts carries for representing that described terminal unit supports the reverse input capability message of the mark of onboard control device type towards periphery；
Receive unit, for receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that mobile unit sends；
Processing unit, for controlling operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information.
26. terminal unit as claimed in claim 25, it is characterised in that described vehicle-mounted Reverse Turning Control information includes the specifying information of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information and describes.
27. terminal unit as claimed in claim 26, it is characterised in that
Described for representing that described terminal unit supports the type field that the mark of vehicle-mounted Reverse Turning Control device type is positioned at described reverse input capability message；
Universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information is positioned at the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes the description field being positioned at described Reverse Turning Control universal information.
28. the terminal unit as described in claim 26 or 27, it is characterised in that the specifying information description of described vehicle-mounted Reverse Turning Control information includes one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
29. a mobile unit, it is characterised in that including:
Receive unit, for receiving the reverse input capability message of source device broadcast；
Processing unit, for if it is determined that described reverse input capability message carries for representing that described source device is supported the mark of onboard control device type and determines that described source device need to be carried out Reverse Turning Control by self, then triggering transmitting element and send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device；
Transmitting element, for the triggering according to described processing unit, sends the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
30. mobile unit as claimed in claim 29, it is characterised in that described vehicle-mounted Reverse Turning Control information includes the specifying information of the universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information and described vehicle-mounted Reverse Turning Control information and describes.
31. mobile unit as claimed in claim 30, it is characterised in that
Described for representing that described source device supports the type field that the mark of onboard control device type is positioned at described reverse input capability message；
Universal input type identification corresponding to described vehicle-mounted Reverse Turning Control information is positioned at the universal input type identification territory of described Reverse Turning Control universal information, and the specifying information of described vehicle-mounted Reverse Turning Control information describes the description field being positioned at described Reverse Turning Control universal information.
32. the mobile unit as described in claim 30 or 31, it is characterised in that the specifying information description of described vehicle-mounted Reverse Turning Control information includes one or more in following information:
For representing the control push-button type information that control push-button type is button or knob of described vehicle-mounted Reverse Turning Control information；
For representing the control actuation of keys information of the control actuation of keys of described vehicle-mounted Reverse Turning Control information；Wherein, when the control push-button type of described vehicle-mounted Reverse Turning Control information is button, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for pressing or lifting；When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, described control actuation of keys information is used for the control actuation of keys representing described vehicle-mounted Reverse Turning Control information for turning clockwise or rotating counterclockwise；
When the control push-button type of described vehicle-mounted Reverse Turning Control information is button, for representing the key information of the concrete button corresponding to described vehicle-mounted Reverse Turning Control information；Or,
When the control push-button type of described vehicle-mounted Reverse Turning Control information is knob, for representing the rotation angle information of the concrete anglec of rotation corresponding to described vehicle-mounted Reverse Turning Control information.
33. a data transmission system, it is characterised in that described system includes source device and mobile unit, wherein:
Described source device, for carrying out the negotiation of reverse audio transmission ability with described mobile unit, and, if it is determined that self and described mobile unit all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described mobile unit, and utilize the reverse audio transmission port of negotiation and described mobile unit to carry out the transmission of voice data；
Described mobile unit, for carrying out the negotiation of reverse audio transmission ability with described source device, and, if it is determined that self and described source device all support reverse audio transmission ability, then consult for transmitting the reverse audio transmission port of voice data with described source device, and utilize the reverse audio transmission port of negotiation and described source device to carry out the transmission of voice data.
34. a revertive control system, it is characterised in that described system includes source device and mobile unit, wherein:
Described source device, for if it is determined that self supports onboard control device type, then each device broadcasts carries for representing that described source device supports the reverse input capability message of the mark of onboard control device type towards periphery；And, if receiving the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information that arbitrary mobile unit sends, then control operation accordingly according to the described vehicle-mounted Reverse Turning Control information and executing carried in described Reverse Turning Control universal information；
Described mobile unit, for receiving the reverse input capability message of described source device broadcast, and if it is determined that described reverse input capability message carries for representing that described source device is supported the mark of onboard control device type and determines that described source device need to be carried out Reverse Turning Control by self, then send the Reverse Turning Control universal information carrying vehicle-mounted Reverse Turning Control information to described source device, to indicate described source device to control operation accordingly according to described vehicle-mounted Reverse Turning Control information and executing.
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