CN102150386B - Method of broadcasting and receiving time-sliced data - Google Patents
Method of broadcasting and receiving time-sliced data Download PDFInfo
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- CN102150386B CN102150386B CN200980135042.3A CN200980135042A CN102150386B CN 102150386 B CN102150386 B CN 102150386B CN 200980135042 A CN200980135042 A CN 200980135042A CN 102150386 B CN102150386 B CN 102150386B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/42—Arrangements for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
- H04H20/33—Arrangements for simultaneous broadcast of plural pieces of information by plural channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
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Abstract
The invention relates to a method of wirelessly transmitting (e.g. broadcasting) time-sliced service content data and service related data in a transmission system configured for transmitting service content data over a plurality of radio channels is proposed. The service content data are transmitted as bursts over a plurality of radio channels. The service related data are transmitted by distributing said service related data as bursts over the plurality of radio channels, method of broadcasting and receiving time-sliced data. Accordingly, bandwidth may be saved.
Description
Background technology
The mobile TV of the TV on mobile phone and the user terminal based on special is expected to become the technology of extensive use in the near future.Due to most wireless communication systems, in wireless network, available bandwidth and the power consumption of mobile terminal are the successful key factors of business development.
Broadcast standard for mobile TV is known as DVB-H (hand-held digital video broadcast) or DVB-SH (hand-held digital video broadcast of satellite service).DVB-H and DVB-SH provide compulsory timesharing, thereby reduce the average power consumption of receiving terminal.As proposed in ETSI EN 301192V1.4.1 (2004-6) and being incorporated to herein with its entirety as a reference, launched continuously compared with desired bit rate obviously higher instantaneous bit rate with data and in burst, sent data if timesharing comprises using.The data that receive in burst are stored in the buffer of terminal.Between burst, the data that the receiver of mobile terminal can be closed and receive can be from buffer playout.Like this, multiple services can use different time slots to share specific wireless channel and terminal can receive a specific service from wireless channel during concrete time slot, described concrete time slot is allocated for the service content data of this service and closes during other time slots, has saved thus significant quantity of power.The other system of Chinese Multimedia Mobile broadcast (CMMB) system for example illustrating in GY/T220.1-2006 and GY/T220.2-2006 is configured to use timesharing equally.
Some broadcast systems are configured to the service content data via the different different services of wireless channel broadcast.
Conventionally, limit bandwidth is considered to play a key effect in commercialization mobile TV.Especially, protected when access with good conditionsi to be provided when service content data, the relevant data of service of for example entitlement management message (EMM) should be provided to terminal.As known in the art, EMM comprises private access information with good conditionsi, and it specifies authorization mechanism or the service for concrete decoder.EMM can be addressed to single decoder or Decoder bank.
This service related data requires the sizable bandwidth that can use broadcasting service contents data in addition.Other examples of service related data comprise metadata, for example electronic service guiding data.
Summary of the invention
An object of the present invention is to reduce the bandwidth requirement for the relevant time data of broadcast service in wireless network.
For this purpose, disclose a kind of method of (for example broadcast) timesharing service content data of wirelessly transmitting in emission system and service related data, described emission system is configured to via multiple wireless channel Launch Services for Foreign content-datas.Via multiple wireless channels using service content data as burst transmissions.By carrying out Launch Services for Foreign related data via multiple radio channel allocation as the described service related data of burst.
Equally, a kind of wirelessly reception in user terminal from the timesharing service content data of (broadcast) emission system and the method for service related data disclosed, described user terminal comprises single receiver, and described (broadcast) emission system is configured to launch described service content data via multiple wireless channels.During the first time slot, receiver is received service content data by tuning with the first wireless channel via multiple wireless channels.In the second time slot, before or after the first time slot, receive service related data via the second wireless channel of multiple wireless channels.The first wireless channel and the second wireless channel are different channels.
In addition broadcast system and the terminal of the step for carrying out correlation method, have been proposed to be configured to.And, propose to be configured to offer the data structure of user terminal from the information of broadcast system.Can use multiple wireless channels to broadcast described data structure, described multiple wireless channels are for broadcasting service contents data and/or service related data.
For the timesharing broadcast of the service via multiple wireless channels, the receiver at user terminal place can have the sufficient time staying for other operation.The applicant recognized this free time can for be tuned to carrying service related data different wireless channels.This different wireless channel for service related data also carries service content data at other time slots.Therefore, identical service related data needn't be via each wireless channel broadcast of broadcast system, and at least one channel is not included in the specific service related data burst of temporal specified moment, makes it possible to save bandwidth.
In the prior art, the total load of service related data is copied to all available wireless channel and launches via described whole available wireless channels, and as shown in Figure 2, each channel has the copy of the service related data of himself.On the contrary, the applicant have been found that by via available wireless channels by multiplexed come distribution services related data, bandwidth can by save one or more channel.Can consider multiple embodiment, some embodiment wherein discuss with reference to Fig. 3 A-3C.
The distribution of service related data can obtain by definite algorithm, and described algorithm is for example controlled described distribution, and service related data is distributed equably via available channel.Replace this measurable algorithm, can use statistics allocation algorithm, and feasible in conjunction with transmitting a signal to user terminal.
The service related data being assigned with can be regarded as virtual service correlated channels.Virtual channel comprises the distribution by the service related data piece sequence of multiple channel bearings.User terminal can arrive virtual channel by the channel " tuning " jumping at multiple interchannels.
Service related data can comprise at least one entitlement management message (EMM) and metadata, for example electronic service navigation information.Should be noted that for specific user terminal, missing specific EMM data is harmless to reliable operation, for example, because EMM data permanently effective (month) conventionally.Can use the method according to this invention to optimize the transmitting of EMM.
Should be appreciated that transmitting in the band that the present invention relates to service related data, wherein user terminal only requires single receiver.Band for the service related data of for example EMM is launched outward, and user terminal needs special receiver.
User terminal is for example apprised of, by the wireless channel (carrying the frequency of channel and/or the frequency of time slot/frame of service related data burst) of the data structure carrying service related data via wireless network broadcast.Data structure can be for example network information table (NIT) broadcast via wireless network.The signal of the information of the position that NIT (or some other equivalent mechanism) transmission for example happens suddenly about EMM is to user terminal.Other may be present in the timesharing that information in NIT relates to service content data.The in the situation that of EMM, data structure (or its part) can obtain from connecting system with good conditionsi.Data structure is arranged on the wireless channel that user terminal is known and (is for example positioned at the particular frame place of this wireless channel).After user terminal, can be tuned to this wireless channel to obtain the information and the frame that carries EMM on wireless channel.Subsequently, user terminal can be controlled to be switched to the wireless channel of carrying EMM during available time slot.
Relative with copying of prior art, the distribution happening suddenly via the service related data of at least two wireless channels can realize in several embodiment, and wherein some illustrate in Fig. 3 A-3C.
Specific advantageous embodiment about bandwidth conservation limits in the present invention, the data burst that wherein Launch Services for Foreign is relevant via wireless channel quantity be less than Launch Services for Foreign content-data via wireless channel quantity.Especially, play (play) service related data burst via wireless channel quantity be the subset of the wireless channel for playing service content data.
Service related data can for example be launched on a wireless channel in multiple wireless channels.This happens suddenly feasible especially when inconsistent in the service content data burst that will be received by user terminal and service related data.User terminal can be controlled such that in the time that burst is consistent priority is received to described service content data.Should be appreciated that EMM is generally used for providing longer-term right and the using ECM (ECM) still can be by user terminal processes to obtain content descramble key.
Embodiments of the invention have reduced service content data burst and the auxiliary data consistent possibility that happens suddenly.
Embodiments of the invention provide and have changed the wireless channel for Launch Services for Foreign related data, and this for example, can be favourable to the user terminal (conventional Set Top Box) that can not carry out channel hopping.
Embodiments of the invention can comprise about service related data the situation of the right for accessing one or more cryptographic services.After broadcast, can be controlled such that in the time that (condition) with good conditionsi access data is broadcasted on wireless channel, consistent service content data at one or more different radio channel place do not require access data with good conditionsi, and for example service content data are the bursts of free (free-to-air).
Various wireless channels can carry complementary service related data, as described herein.
Embodiments of the invention can also comprise about service related data the situation of the access data with good conditionsi for accessing one or more cryptographic services.It is encrypted and do not have the information (key/right) for deciphering to detect service (or service content data) that user terminal can have built-in intelligence.After user terminal, can be switched to the wireless channel of carrying access information with good conditionsi.
Brief description of the drawings
After this, embodiments of the invention will be further described.But, be to be appreciated that these embodiment can not be regarded as limiting the scope of the invention.
In the accompanying drawings:
Fig. 1 provides the schematic diagram of DVB radio network according to an embodiment of the invention, and it is for being provided to multiple user terminals via multiple wireless channels by the service content data from broadcast system transmission content;
Fig. 2 is according to the schematic diagram of multiple wireless channels of prior art;
Fig. 3 A-3C is the schematic diagram of multiple wireless channels according to an embodiment of the invention;
Fig. 4 A and 4B have shown a part for DVB broadcast system and the schematic diagram of user terminal according to an embodiment of the invention;
Fig. 5 provides the schematic diagram of CMMB broadcast system; And
Fig. 6 A and 6B have shown a part for CMMB broadcast system and the schematic diagram of user terminal according to an embodiment of the invention.
Embodiment
Fig. 1 shows the diagram of DVB broadcast system 1, and it is configured to, via wireless network, service content data broadcast is arrived to multiple mobile subscriber terminals 2 (for example mobile phone, portable computer).Service content data can comprise video, audio frequency, document etc.
Broadcast system 1 comprises antenna 3, and via antenna 3, service content data are broadcast to mobile terminal 2 via air.Broadcast system 1 can be for example DVB-H broadcast system, and it is described in detail and is incorporated to the application with its entirety in ETSI EN 301192V1.4.1 (2004-6).Alternatively, broadcast system 1 can be the system that has realized Chinese Multimedia Mobile broadcast (CMMB) standard, as will be further illustrative in Fig. 5.CMMB broadcast system is further specified in GY/T220.1-2006 and GY/T220.2-2006.
Known broadcast system 1 can be for being transmitted into mobile terminal by service content data and service related data.Service content data are provided to antenna 3 by head end (head end) system 4.Head end system 4 can also provide or comprise service related data in broadcast singal.The example of this service related data comprises access with good conditionsi (CA) data and electronic service guiding (ESG) data.Especially, CA data are entitlement management message (EMM), comprise private access information with good conditionsi, and this information is specified the service of authorization mechanism or special decoder.
Head end system 4 is configured to use module 5A, 5B, the 5C in head end system to provide service content data via multiple wireless channels (" carrier wave ").Each in module 5A-5C is responsible for being provided for the data of single wireless channel RC.
Head end system 4 provides the Frame of timesharing.Video data and service related data are with high bit rate burst transmit.In a burst, also indicate that (Δ t) starting time before next burst.Between multiple bursts of a service, the burst that can insert other service datas.Associated data is stored in the buffer of mobile terminal 2.This makes mobile terminal 2 only in the time period during the burst of asked service can be received, keep active.Data can be used the data of buffering to be play continuously during the unused time.
Fig. 2 provides the schematic diagram of the part that illustrates three wireless channel RC1, RC2 and RC3.CA system 7 is provided to system 8 for EMM being copied to each in wireless channel RC1, RC2 and RC3 by the A of EMM, B, C.Service content data comprise video data.The frame of wireless channel RC1 carrying video V1i and video V1ii.The frame of wireless channel RC2 carrying video V2i, V2ii and V2iii.The frame of wireless channel RC3 carrying video V3i and V3ii.Obviously, sizable bandwidth is occupied the service related data consumption of whole channels.Letter i, ii and iii represent the content-data of different services.
Turn back to Fig. 1, broadcast system 1 can transmitting data structure 6, and this data structure 6 is informed the method for the bandwidth request for reducing service related data to the application's mobile subscriber terminal 2, discharged thus the bandwidth for service content data.
Data structure 6 can be network information table (NIT) broadcast via wireless network.NIT6 transmits a signal to user terminal 2, and described signal is for example the information about the position of service related data burst.Other may be present in the timesharing that information in NIT relates to service content data.The in the situation that of EMM, data structure 6 (or its part) can obtain from connecting system with good conditionsi.Data structure 6 is for example arranged on wireless channel RC1, RC2, RC3 that user terminal is known upper (being for example positioned at the particular frame place of this wireless channel).After user terminal 2, can be tuned to this wireless channel to obtain the information and the frame that carries EMM on wireless channel.Subsequently, user terminal can be controlled to be switched to the wireless channel of carrying EMM during available time slot.
Data structure 6 comprises for mobile terminal 2 and represents that service related data exists only in the information on some channels of available wireless channels RC1-RC3, as shown in Fig. 3 A-3C, represents that thus burst comprises service related data.
Conventionally, described system can be operated to realize as follows the present invention.Many server data stream transmit on wireless channel with time-sharing format.User terminal 2 is transmitted signal on whole channels of timesharing carrying service related data.Service related data to the dispensing of concrete timesharing can be for example at head end place by calculated in advance.Head end 4 uses suitable algorithm, and for example definite allocation algorithm, carrys out distribution services related data with the timesharing of the transmitted signal via channel.User terminal 2 be configured to fast enough be tuned to suitable channel timesharing to receive these timesharing of carrying service related data.The position of dispensing algorithm and signalling service related data is designed so that user terminal 2 will receive service related data conventionally in time.
Multiple embodiment can design the scope of use distributor 9 of the present invention via various radio channel allocation service related data bursts.Distributor 9 uses suitable allocation algorithm bandwidth is saved via the burst of radio channel allocation service related data.
Fig. 3 A-3C is schematically exemplified with three exemplary embodiments, and wherein, compared with the situation of the prior art shown in Fig. 2, the length reducing of a series of bursts represents the saving of bandwidth.
Conventionally,, for Fig. 3 A and 3B, the wireless channel quantity of carrying service related data A, B, C is less than the wireless channel quantity of carrying service content data V.In other words, distributor 9 is only via some the distribution services related datas in available wireless channels RC1, RC2 and RC3.
In Fig. 3 A, wireless channel RC1 and RC2 carrying service related data A, B, C, and all wireless channel RC1-RC3 carries service content data V.In other words, service related data is broadcasted via two in three carrier waves.Service related data A, B, C are broadcasted and make these bursts not overlapping.As Fig. 3 A schematically as shown in, the application of distribution causes the bandwidth gain for wireless channel RC3.Be tuned to wireless channel RC3 and will only can obtain service related data burst B and C by being switched to wireless channel RC2 with the mobile terminal 2 of receiver, video V3i.But in the time considering the reducing of response time (being the time that must wait for before mobile terminal 2 is receiving requested data) of mobile terminal 2, bandwidth conservation is still fully.
In Fig. 3 B, as by the only result to single RC1 channel allocation of distributor 9, service related data burst A, B, C are carried by single wireless channel RC1.This happens suddenly particularly useful when inconsistent in the service content data burst V that will be received by user terminal 2 and service related data.As be schematically shown, bandwidth conservation obtains in wireless channel RC2 and RC3.User terminal 2 can be controlled such that in the time that service related data burst is consistent with service content data burst priority is received to described service content data.
But in Fig. 3 A and 3B, service related data is shown in RC1 and the upper transmitting (Fig. 3 A) continuously of RC2 and only transmitting (Fig. 3 B) continuously on RC1, and head end system 4 can be configured so that service related data is dynamically transmitted via available wireless channels.As example, at moment t1, service related data A only launches via wireless channel RC3.At moment t2 subsequently, service related data A can only broadcast on wireless channel RC1.At moment t3 after a while, service related data A can only launch etc. on wireless channel RC2.But, put at any time t, broadcast the burst of specific service related data via the quantity of wireless channel RC be less than the sum of available wireless channels.
Head end 4 can be controlled such that broadcasting service contents data V is consistent with service related data A, B, the C of service content data demand.Service content data can for example comprise the access data with good conditionsi for accessing one or more cryptographic services.After broadcast, can be controlled such that while being broadcasted on the wireless channel RC1 of access data with good conditionsi in Fig. 3 A, the consistent service content data video V2iii of RC1 (with same feasible wireless channel RC3) does not require these rights data.Video V2iii can for example relate to the burst of free service content-data.
In Fig. 3 A, the service related data burst on wireless channel RC1 and RC2 can be complementary data.Be tuned to RC3 can be tuned in advance RC3 and be tuned to RC1 receiving after service related data with the mobile device 2 of receiver, video 2C.
On the other hand, Fig. 3 C is the schematic illustration of an embodiment, and wherein the total amount of service related data is distributed via whole available wireless channels.But, by distribution load, obtain bandwidth conservation.Especially, whole service related data burst A, B, C are assigned to wireless channel RC1 and RC2 by distributor 9, only on wireless channel RC3, launches burst A and C simultaneously.As schematically shown in the accompanying drawings, service related data burst provides (minimum) bandwidth conservation to the local dispensing of wireless channel.
Fig. 4 A and 4B are respectively schematically exemplified with a part for head end system 4 and the DVB of mobile terminal 2 structure.
Fig. 4 A illustrates the assembly for the head end system 4 of one or more wireless channel.Head end system 4 comprises ESG parts 10, service content data component 11 and CA parts 12.Schedule data 13 is provided to represent to be used to carry respectively the timesharing of ESG data and EMM.User terminal 2 uses the information for example flowing, in (CAT, NIT, SDT) to point to CA and ESG data burst.Each burst packets is containing the accurate location with reference to next burst and the information of time.
ESG parts 10 comprise ESG generator 14, and ESG data are provided to document transmission (FLUTE) server 15 via one-way transmission by this ESG generator 14, and this server allows to be transferred to document as transmission object mobile terminal 2.FLUTE server can also receive SDP input (not shown) and other configuration informations of describing user terminal 2 and should how accessing the session/event that uses media encoding and decoding (codec).
The H.264 video encoder 16 of standard that provides MPEG-2TS to wrap scrambler 17 is provided service content data component 11, and described scrambler will use the Control Word scramble from ECM generator 18.Data after scramble are transferred to RTP packing device 19.ECM carries the control word of encryption in the known mode of technical staff.But, should be appreciated that other data except video data can be for carrying out the present invention.
Except ECM generator 18, CA parts 12 also comprise provides encryption key to encrypt the EMM generator 20 of the control word in ECM.Can use from the data of subscriber management system 21 and generate EMM.
Should be appreciated that head end system 4 can also be configured to be connected to mobile wireless telecommunication network.This network can be for receiving request with subscribed services from mobile terminal 2 to subscriber management system 21.
The output of ESG parts 10, service content data component 11 and CA parts 12 is fed to IP packaging machine 22 subsequently.IP packaging machine 22 provides service content data and service related data (ESG data and EMM) to OFDM modulator 23, to broadcast on wireless channel in the mode shown in Fig. 3 A-3C.
The data that received by user terminal 2 comprise tuner, demodulating unit and demultplexer 30.User terminal 2 is configured to jump between multiple wireless channel RC1-RC3.User terminal 2 can also comprise the detector that can realize in unit 30, and described detector is for wanting decrypted service content data and in response to obtaining service related data (being access data with good conditionsi), tuner receiver being switched to another wireless channel.
The output of piece 30 comprises the IP traffic of encapsulation, and this IP traffic is further processed by IP stack cell 31.IP stack cell 31 removes IP encapsulation and IP contracted affreightment is delivered to the application of request from the packet of particular ip address.IP stack cell 31 be configured to be tuned to different frequency to receive IP traffic on different channels.
ESG client 32 is processed from the data of ESG generator 14 and with terminal applies and is engaged.The all right treatment S DP data of ESG client also arrive access agent 33 with good conditionsi by SDP data transmission, and this access agent with good conditionsi is configured to coordinate with smart card 34 in same known mode.Access agent 33 with good conditionsi receives ECM and the EMM from IP stack cell 31.
IP stack cell 31 provides and H.264-RTP outputs to descrambler 35.Descrambler 35 is for protection (secure) device 33 reception Control Words are to be provided to the data after descrambling H.264 decoder 36.
As mentioned above, Fig. 5 provides the schematic diagram of CMMB broadcast system 1.Service content data and the service related data end system 4 of confessing one's crime 50 is provided to user terminal 2 via satellite.Signal is launched into satellite 50 via Ku wave band, and uses S-band to launch to user terminal 2 from the signal of satellite 50.In grass roots, user terminal 2 receives signal with S-band.In urban area, may need transponder 51 to send service content data and service related data via S-band or UHF wave band.NIT6 is also received via these wave bands.
Fig. 6 A and 6B have shown a part for CMMB broadcast system and the schematic diagram of user terminal 2 in Fig. 5 according to an embodiment of the invention.
Fig. 6 A illustrates the assembly for the head end system 4 of one or more wireless channel.Head end system 4 comprises ESG parts 60, service content data component 61 and CA parts 62.Provide schedule data to represent the timesharing for carrying respectively ESG data and EMM.Information in user terminal 2 use streams is to point to CA and ESG data burst.Each burst packets is containing the accurate location with reference to next burst and the information of time.
ESG parts 60 comprise the ESG generator that ESG data is provided to ESG carousel (carousel) (being generally document transmission (FLUTE) server via one-way transmission), allow document to be transferred to mobile terminal 2 as transmission object.ESG carousel can also receive input (not shown) and other configuration informations of describing user terminal 2 and should how accessing the session/event that uses media encoding and decoding.This information forms a part for the control logic channel of CMMB physical layer, and described CMMB physical layer is for emission system control information and channel parameter.
Service content data component 61 comprises one or more audio/video encoder, and its audio/video scrambler that carries out scramble from the Control Word of the ECM generator of CA parts 62 to use provides Basic Flow bag.Data after scramble are transferred to XPE-FEC to send error coded.ECM carries the control word of encryption in the known mode of technical staff.Should be appreciated that and be derived from data server also can be processed by other data of data scrambler scramble.
Except ECM generator, CA parts 62 comprise provides encryption key to encrypt the EMM generator of the control word in ECM.EMM can use from the data of commerce operations back-up system and generate.
Should be appreciated that head end system 4 can also be configured to be connected to mobile wireless telecommunication network.This network can be for receiving request with subscribed services from mobile terminal 2 to commerce operations back-up system.
The output of the output of ESG parts 60, the output of service content data component 61 and CA parts 62 is fed to multiplexer subsequently.Multiplexer is provided to COFDM modulator to broadcast on wireless channel in the mode shown in Fig. 3 A-3C by service content data and service related data (ESG data and EMM).
The data that received by user terminal 2 comprise CMMB receiver.User terminal 2 is configured to jump between multiple wireless channel RC1-RC3.User terminal 2 can also comprise the detector that can realize in CMMB receiver, and described detector is for wanting decrypted service content data and in response to obtaining service related data (being access data with good conditionsi), tuner receiver being switched to another wireless channel.
The output of CMMB receiver comprises the IP traffic after the encapsulation of further being processed by IP stack cell.IP stack cell removes IP encapsulation and IP bag is sent to the application of request from the packet of particular ip address.IP stack cell be configured to be tuned to different frequency to receive IP traffic on different channels.
ESG client process engages from the data of ESG generator and with terminal applies.The all right treatment S DP data of ESG client also arrive access agent with good conditionsi by SDP data transmission, and this access agent with good conditionsi is configured to coordinate with smart card in same known mode.Access agent with good conditionsi receives ECM and the EMM from IP stack cell.
H.264-RTP, IP stack cell will be exported and be provided to descrambler.Descrambler receives for the protection of the Control Word installing so that the data after descrambling are provided to H.264 decoder.
Claims (11)
1. a method for wireless transmission timesharing service content data and service related data in transmission system, described transmission system is configured to, via multiple wireless channel Launch Services for Foreign content-datas, said method comprising the steps of:
Described service content data via the wireless channel transmitting of the first quantity of multiple wireless channels as burst;
Radio channel allocation by the second quantity via described multiple wireless channels is launched described service related data as the described service related data of burst,
The wireless channel of wherein said the second quantity is less than the wireless channel of described the first quantity.
2. the method for claim 1, further comprising the steps: in the different time via at least the first wireless channel in the wireless channel of described the second quantity and the second wireless channel broadcast service related data.
3. the method for claim 1, further comprising the steps: change described service related data be broadcasted via wireless channel.
4. the method for claim 1, further comprising the steps: to control at least one the transmission in described service content data and described service related data, to avoid the described service related data on first wireless channel of wireless channel of described the second quantity, with the described service content data consistent requiring on first wireless channel of wireless channel of described the first quantity of described service related data.
5. the method for claim 1, wherein the described service related data on the first wireless channel and the second wireless channel is carried complementary service related data.
6. method as claimed in claim 5, the service related data of the described complementation on the described service related data on wherein said the first wireless channel and described the second wireless channel is broadcasted at different time.
7. for the equipment in transmission system wireless transmission timesharing service content data and service related data, described transmission system is configured to via multiple wireless channel Launch Services for Foreign content-datas, and described equipment comprises:
Device via the wireless channel transmitting of the first quantity of multiple wireless channels as the described service content data of burst;
Radio channel allocation by the second quantity via described multiple wireless channels is launched the device of described service related data as the described service related data of burst,
The wireless channel of wherein said the second quantity is less than the wireless channel of described the first quantity.
One kind for the user terminal wireless receiving comprising single receiver from the timesharing broadcasting service contents data of broadcast transmission system and the method for service related data, described broadcast transmission system is configured to broadcast described service content data via multiple wireless channels, said method comprising the steps of:
Tuning described receiver receives described service content data with the first wireless channel via the wireless channel of the first quantity of described multiple wireless channels during the first time slot;
Tuning described receiver receives described service related data with the second wireless channel via the wireless channel of the second quantity of described multiple wireless channels during the second time slot, described the second time slot before or after described the first time slot,
The wireless channel of wherein said the second quantity is less than the wireless channel of described the first quantity.
9. method as claimed in claim 8, wherein said the second wireless channel comprises service content data burst and service related data burst, and described method is further comprising the steps: during described the second time slot, obtain described service related data burst from described the second wireless channel.
10. method as claimed in claim 8 or 9, wherein said service content data comprise that the service content data of encryption and described service related data comprise the entitlement management message for authorizing the service content data of deciphering described encryption, and described method is further comprising the steps: detect the described service content data of wanting decrypted and also described receiver is switched to described the second wireless channel.
11. 1 kinds for the user terminal wireless receiving comprising single receiver from the timesharing broadcasting service contents data of broadcast transmission system and the equipment of service related data, described broadcast transmission system is configured to broadcast described service content data via multiple wireless channels, and described equipment comprises:
Tuning described receiver receives the device of described service content data with the first wireless channel via the wireless channel of the first quantity of described multiple wireless channels during the first time slot;
Tuning described receiver receives the device of described service related data with the second wireless channel via the wireless channel of the second quantity of described multiple wireless channels during the second time slot, described the second time slot before or after described the first time slot,
The wireless channel of wherein said the second quantity is less than the wireless channel of described the first quantity.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08161107.1 | 2008-07-24 | ||
| EP08161107 | 2008-07-24 | ||
| PCT/EP2009/056411 WO2010009927A2 (en) | 2008-07-24 | 2009-05-27 | Method of broadcasting and receiving time-sliced data |
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| Publication Number | Publication Date |
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| CN102150386A CN102150386A (en) | 2011-08-10 |
| CN102150386B true CN102150386B (en) | 2014-10-22 |
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| CN200980135042.3A Expired - Fee Related CN102150386B (en) | 2008-07-24 | 2009-05-27 | Method of broadcasting and receiving time-sliced data |
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| WO (1) | WO2010009927A2 (en) |
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| EP1883173A2 (en) * | 2006-07-24 | 2008-01-30 | Delphi Technologies, Inc. | Method and system for sending and receiving satellite digital radio programming information for multiple channels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1883173A2 (en) * | 2006-07-24 | 2008-01-30 | Delphi Technologies, Inc. | Method and system for sending and receiving satellite digital radio programming information for multiple channels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102150386A (en) | 2011-08-10 |
| WO2010009927A2 (en) | 2010-01-28 |
| WO2010009927A3 (en) | 2010-05-14 |
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