CN106034290B - A kind of physical layer signaling system based on wireless digital multimedia broadcast - Google Patents
A kind of physical layer signaling system based on wireless digital multimedia broadcast Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention provides a kind of physical layer signaling system based on wireless digital multimedia broadcast, comprising: independent signalling module includes: leading signaling unit, for identification the type of physical frame, responds emergent broadcasting information, obtains the attribute information of physical frame；Physical frame signaling unit, for knowing the attribute information of physical frame to assist parsing physical frame；Physical frame signaling unit is divided into physical frame signaling and often uses signaling mode and physical frame signaling simplified signaling mode；Logical frame signaling unit, for knowing the attribute information of transmission channel in logical frame；Logical frame signaling unit includes logical frame configuration signal, logical frame dynamic signaling, logical frame expanded signalling；With signalling module include first with signaling unit and second with signaling unit.The present invention functionally supports different transmission channel different transmission parameters, receives different brackets quality services, quick receiving emergency broadcast message, auxiliary flow transmission.Quick scanning is taken into account in performance, power saving, saves signaling overheads.
Description
Technical field
The invention belongs to wireless communication technology fields, more particularly to a kind of physics based on wireless digital multimedia broadcast
Layer signaling system.
Background technique
With the fast development of digital technology and information technology, when the whole world comes into digitlization, informationization, networking
Generation, digital multimedia broadcasting are also grown rapidly.At this stage, mainly there are following a few class digital television broadcasting marks in the world
It is quasi-: Advanced Television Systems Committee (ATSC) standard, the synthesis of Japan of European digital television broadcasting (DVB) standard, the U.S.
Service digital broadcasts (ISDB) standard.The DTV of China exactly starts to send out under the atmosphere that international digital grows to even greater heights
Exhibition, is proposed digital TV ground multimedia broadcasting (DTMB) standard, China Mobile Multimedia Broadcasting (CMMB) standard etc..
The baseband signal of one wireless digital TV-set broadcast system be by a series of physical frame groups at.Usual each object
Reason frame is made of leading part, signaling moiety and data portion.Leading part is for synchronous or/and signal identification；Signaling moiety
For describing the modulating-coding transmission mode of data portion, it may further indicate that the position of data to be decoded and reception data must
The information needed, signaling moiety are made of multiple signaling fields；Data portion is for carrying Business Stream to be transmitted.In ofdm system
In, leading part, signaling moiety and data portion are respectively by leading symbol, signaling symbols and data symbols carry.
When radio receiver is just switched on, preliminary sweep is carried out first.1) preliminary sweep is the following steps are included: parse object
The leading part of frame is managed, to find the wireless broadcast data stream of receiver ability support；2) signaling of respective physical frame is parsed
Part indicates the bit data in physical frame such as access information of parsing program listing and data flow according to signaling；3) wireless wide
It broadcasts receiver upper-layer protocol stack and protocol analysis is carried out to the bit data that these physical layers export, obtain receiver ability support
The program listing of wireless broadcast data stream and the information such as the access of data flow or mapping.Radio receiver repeats above-mentioned frame by frame
Step, until completing the preliminary sweep for all wireless broadcast data streams that radio receiver ability is supported.Work as radio broadcasting
After receiver selected target business, then according to preliminary sweep program information obtained and target data stream in multiple protocol layers
Related access signaling information, the related data of indicated location resolution target data stream in physical frame, to start its company
Continued access is received.The either access information of the program listing of data flow or data flow and target data stream, can be in radio broadcasting
It is transmitted in system as the data portion of physical frame.When radio receiver converted channel, then according to program listing, number of targets
According to the map information and relevant physical layer signaling information of stream, the location resolution newly indicated in radio receiver physical frame is waited for
It receives data flow and and then starts the continuous reception of new wireless broadcast data stream to complete zapping process.
It is marched along with traditional tv media to networking TV new media channel, broadcast service mode is to content format
The direction of the features such as diversity, type service diversity, access way diversity converts.Meanwhile telecommunications network, radio network and interconnection
It interpenetrating between net and is compatible with so that the growth momentum of the integration of three networks is more obvious.These bring for wireless digital broadcasting
New opportunity and challenge also proposes new demand to wireless digital multimedia broadcast system.
For the application demand of next-generation wireless broadcast system, it has been suggested that the transmission plan of a set of radio broadcasting:
On the one hand wireless digital multimedia broadcast system is needed using advanced Bit Interleaved Coded Modulation (BICM) technology,
To effectively improve spectrum efficiency and transmission reliability, on the other hand, need to do following consideration in framing.
In order to support compatibility, multiple physical frames and undefined period are total to channel time division multiplexing, form physics superframe.It is uncertain
The adopted period can carry the signal that the signal that existing standard defines or this standard future extended version define or other systems define
Signal.For the benefit of receiver power saving, physical frame and undefined period repeat in physics superframe according to certain regular periods.
In order to not increase scheduler complexity additionally on the basis of providing flexible physical frame configuration and mapping mode,
The concept of logical frame is introduced on this layer of physical frame.Logical frame is by logical frame signaling (LFS) data cell, Common transport channel
(TCH) data cell, Class1 business TCH data cell, 2 business TCH data cell of type, side stream data unit and logic
Frame fills unit successively forms.For the differentiation for meeting service quality between different business, logical frame is transmitted more by multiple TCH
A business with different QoS requirements, different business/Service Component can neatly map in one or more TCH, each
TCH can be independently determined its coding, constellation mapping, time-interleaved, more days according to the QoS requirement for the business that it is carried
The mode of line coding.Multiple subservices to realize same business carry the TCH of same service source in multiple TCH flexible transmissions
Resident TCH can be divided into must be mapped in each logical frame with TCH, resident TCH is associated with.It is carried for convenience of realizing in logical frame
The upper layer associated access of business datum, the information such as program information and its access pass through special public TCH carrying.Due to be passed
Type of service multiplicity, has nothing in common with each other to application scenarios, robustness and propagation delay time demand etc., for this purpose, in the business of transmission services
It in TCH, compares common business continuity transmission mode (Class1 business TCH), increases and introduce 2 business TCH of type, for realizing
The service transferring mode of time slicing in logical frame improves transmission reliability to obtain time diversity gain.In 2 business of type
After TCH, one or more auxiliary flows and some logical frame fills units can be added, just to take the capacity of logical frame.
One group of isometric logical frame forms logic superframe, and multiple continuous logic superframe streams form logic channels, and logic channel is to physics
The mapping of frame is determined by the type of logic channel.
Therefore, a kind of physical layer signaling system based on wireless digital multimedia broadcast how is provided, to solve existing skill
Physical layer signaling structure in art can not cooperate the transmission plan for the new radio broadcasting having proposed with completion notice radio broadcasting
Receiver parameter value used in new radio transmission scheme, radio receiver can complete the parsing of data
Function, have become practitioner in the art's technical problem urgently to be resolved in fact.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide one kind to be based on wireless digital multimedia
The physical layer signaling system of broadcast, for solve physical layer signaling structure in the prior art can not cooperate have proposed it is new wireless
The transmission plan of broadcast with completion notice radio receiver parameter value used in new radio transmission scheme,
Radio receiver can complete the problem of function of the parsing of data.
In order to achieve the above objects and other related objects, the present invention provides a kind of object based on wireless digital multimedia broadcast
Layer signaling system is managed, it is described applied in the cordless communication network being made of wireless broardcast transmitter and radio receiver
Wireless broardcast transmitter emits radio broadcasting signal to radio receiver, and the radio broadcasting signal includes urgent broadcast letter
Breath and/or non-emergent broadcast message, the emergent broadcasting information and non-broadcasting information are carried by physical frame, the physical layer signaling
Structure includes the independent signalling module and adjoint signalling module for parsing the physical frame: where the independent signalling module
It include: leading signaling unit, the type of the physical frame, responds the emergent broadcasting information for identification, and obtains the object
Manage the attribute information of frame；The leading signaling unit is carried by leading symbol；The leading signaling unit includes time-domain information
And frequency domain information；The frequency domain information includes the first domain, the second domain and third domain；Physical frame signaling unit, it is described for knowing
The attribute information of physical frame is to assist parsing the physical frame；The data structure of the physical frame signaling unit is divided into physical frame letter
Enable common signaling mode and physical frame signaling simplified signaling mode；The physical frame signaling unit is carried by signaling symbols；It patrols
Frame signaling unit is collected, for knowing the attribute information of transmission channel in logical frame；The logical frame signaling unit includes logical frame
Configuration signal, logical frame dynamic signaling and logical frame expanded signalling；Include: first with signaling with signaling, is used to indicate biography
The physical layer signaling domain of defeated channel dynamic change in next logical frame；With second with signaling unit.
Optionally, first domain is used to indicate the type of the physical frame, before the attribute information in first domain includes
Lead signal format, preamble transmission type and with the targeting signal format and the one-to-one signaling of preamble transmission type
Domain value；Wherein, the targeting signal format includes fixed broadcast and mobile broadcast, and the preamble transmission type includes single
Input single output mode and more/mono- output modes of multi input.
Optionally, second domain is used to indicate the Discrete Fourier Transform of OFDM symbol in the physical frame
Points and protection interval percent information；The third domain is used to indicate the physical frame signaling mode of the physical frame, the third
Domain includes the first preset value and the second preset value.
Optionally, the physical frame signaling unit often uses signaling mould using the physical frame signaling in single carrier frequency system
Formula；Signaling mode is often used using the physical frame signaling on main carrier frequency in multi-carrier frequency system, it is auxiliary in multi-carrier frequency system
Signaling mode or the physical frame signaling simplified signaling mode are often used using the physical frame signaling on carrier frequency；The physical frame letter
The data structure of unit is enabled to include: the first domain of the leading signaling unit, the second domain, third domain, be used to indicate the physics
The signaling domain of the protection interval of OFDM symbol in frame is used to indicate OFDM symbol in the physical frame
It the signaling domain of scattered pilot mode and is used to indicate in physical frame using reducing the signaling domain of papr method, use
In the logical frame newly started in the last one data cell of physical frame signaling unit of instruction present physical frame and present physical frame
First data cell between be spaced virtual resource number of particles signaling domain, be used to indicate in logical frame logical frame and configure
The signaling domain of the bit length of signaling is used to indicate the orthogonal frequency division multiplexing in present physical frame included after removal leading symbol
The signaling domain of signed number amount, is used to indicate broadcast at the signaling domain for being used to indicate index of the present physical frame in physics superframe
The signaling domain of the number of broadcast singal is regenerated in system, be used to indicate all physical frames of present physical frame type in carry
Logic channel quantity signaling domain, be used to indicate present physical frame carrying logic channel index signaling domain, be used for
It indicates the signaling domain of the logical channel type of present physical frame carrying, be used to indicate logic channel group belonging to current logic channel
Index signaling domain, be used to indicate present physical frame current logic channel physical frame configuration period pattern in time dimension
On the signaling domain of position, the carrier frequency being used to indicate where the next physical frame of current logic channel signaling domain, be used for
Indicate the signaling domain of the time interval between current logic channel present physical frame postamble and next physical frame frame head, for referring to
Show the signaling domain, the first reserved signaling domain and 32 bit cyclic redundancy signaling domains of standard version number.
Optionally, when the signaling domain value in the third domain of the leading signaling unit is the first preset value, the physics
The data structure of frame signaling unit further include: be used to indicate the duration of the undefined period of the main carrier frequency signaling domain,
The signaling domain of the quantity of radio slot in a physical frame is used to indicate on the main carrier frequency, according to physics in a radio slot
Frame types index circulation loop body, be used to indicate logical frame signaling unit type of coding signaling domain, be used to indicate logic
The signaling domain of the code rate of frame signaling unit, be used to indicate logical frame signaling unit modulation system signaling domain, for referring to
Show the signaling domain of more/mono- output modulation systems of the multi input of logical frame signaling unit, be used to indicate in current logic frame and whether mention
For the logical frame dynamic signaling of next logical frame signaling domain, be used to indicate in the logical frame signaling unit whether comprising expand
It opens up the signaling domain in signaling domain, be used to indicate the quantity of data cell of the logical frame signaling unit after coded modulation in logical frame
Signaling domain, be used to indicate the signaling domain of logical frame dynamic signaling bit length in logical frame, be used to indicate and believed using logical frame
The signaling domain of logical frame dynamic signaling bit length in next logical frame in current logic frame channel when unit being enabled to repeat to transmit,
The additional verification baud for being used to indicate the signaling domain of logical frame expanded signalling domain bit length, being used to indicate logical frame signaling unit
The signaling domain of the current check bit quantity ratio of number field is used to indicate carrying and continuously transmits logical frame in current logic frame and believes
Unit is enabled to add the signaling in the signaling domain of the quantity of the front and continued logical frame of check bit, the identification number for being used to indicate broadcast emission tower
Domain, be used to indicate broadcast cell identification number signaling domain, be used to indicate broadcast system identification number signaling domain and for referring to
Show the signaling domain of the identification number of broadcasting network.
Optionally, it is described when the loop body of physical frame types index circulation is in 0 to 3 according to a radio slot
The data structure of physical frame signaling unit further include: be used to indicate the signaling of the physical frame preamble signal type of the physical frame
Domain and the physical frame for being used to indicate present physical frame type appear in the signaling of the position in the broadcast subsegment in radio slot
Domain；When the signaling domain value in the signaling domain of the physical frame preamble signal type of the physical frame takes with signaling domain in first domain
When being worth unequal, the data structure of the physical frame signaling unit further include: be used to indicate non-present physics on the main carrier frequency
The signaling domain of the length of the physical frame of frame type.
Optionally, the data structure of described volume of frame configuration signal includes: to be used to indicate various optional logical frames in logical frame
Signaling domain whether obtain using signaling domain, be used to indicate the support of logic superframe all transmission channel modes quantity
Signaling domain, be used to indicate the transmission channel that logical frame includes quantity signaling domain, be used to indicate the logic that logic superframe includes
The signaling domain of the quantity of frame and be used to indicate logical frame carrying data cell quantity signaling, logically frame includes
The loop body of the transmission mode circulation of the loop body of transmission channel circulation and logically all transmission channels of superframe support；
When it is described be used to indicate various optional logical frame signaling domains in logical frame whether obtain using the signaling domain value in signaling domain be
When the first particular value, the data structure of the logical frame configuration signal further include: be used to indicate 2 business of type in a logical frame
The signaling domain of the quantity for the time sub-pieces that transmission channel includes.
Optionally, the biography that the loop body for the transmission channel circulation for including when the logically frame includes in 0 and logical frame
When in the signaling domain value -1 in the signaling domain of the quantity of defeated channel, the data structure of the logical frame configuration signal further include: use
In instruction current transmission channel index signaling domain, be used to indicate current transmission channel transmission mode index signaling
Domain, be used to indicate the data flow that current transmission channel is carried quantity signaling domain, carried according to current transmission channel
The loop body of data flow circulation is used to indicate whether current transmission channel carries the signaling domain of the emergency broadcast message, is used for
Indicate whether current transmission channel is the signaling domain of resident transmission channel, is used to indicate whether current transmission channel carries the first companion
With signaling information signaling domain and be used to indicate the affiliated transmission channel group of current transmission channel in broadcast system index signaling
Domain；When the data that the loop body of the data flow circulation carried according to current transmission channel is carried in 0 and current transmission channel
When in the signaling domain value -1 in the signaling domain of the quantity of stream, the data structure of the logical frame configuration signal further include: for referring to
Show the signaling domain of the index of current data stream；It is used to indicate whether various optional logical frame signaling domains in logical frame obtain when described
When the signaling domain value in the signaling domain used is the second particular value, the data structure of the logical frame configuration signal further include: the
Two reserved signaling domains.
Optionally, the loop body of the transmission mode circulation for all transmission channels supported when logically superframe 0 and is referring to
When showing in the signaling domain value -1 in the signaling domain of the quantity for all transmission channel modes that logic superframe is supported, the logic
The data structure of frame configuration signal further include: be used to indicate the signaling domain of the index of transmission channel mode, be used to indicate biography
The signaling domain of defeated channel type, the signaling domain for being used to indicate the forward error correction mode that transmission channel uses are used to indicate transmission letter
The signaling domain for the forward error correction bit error rate that road uses, is used for the signaling domain for being used to indicate the modulation system used in transmission channel
It indicates the signaling domain of the maximum quantity for the Bit Interleaved Coded Modulation block that each transmission channel can carry in logical frame and uses
The signaling domain of the quantity in the delay channel in instruction logic interframe convolutional interleave, the logically delay in interframe convolutional interleave
The loop body of channel cycle；When the signaling domain value in the first domain of the leading signaling unit is the second signaling domain value or the 4th
When the value of signaling domain, the data structure of the logical frame configuration signal further include: be used to indicate transmission channel using multi input it is more/
The signaling domain of single exports coding mode；When it is described be used to indicate various optional logical frame signaling domains in logical frame whether obtain using
Signaling domain signaling domain value be third particular value when, the data structure of the logical frame configuration signal further include: third is pre-
Stay signaling domain.
Optionally, when the loop body of the delay channel cycle in logically interframe convolutional interleave is used to refer to 0 to described
When showing in the signaling domain value -1 in the signaling domain of the quantity in the delay channel in interframe convolutional interleave, the logical frame configuration signal
Data structure further include: be used to indicate the signaling domain of the delay depth in current delay channel.
Optionally, when the signaling domain of the type of the logic channel signaling domain value be third type signaling domain value or
When the 4th type signaling domain value, the data structure of the logical frame configuration signal further include: be used to indicate carrying current logic
The loop body of the signaling domain of the quantity of the carrier frequency of channel and the carrier frequency circulation according to carrying current logic channel；When according to carrying
Quantity of the loop body of the carrier frequency circulation of current logic channel 0 to the carrier frequency for being used to indicate carrying current logic channel
When in the signaling domain value -1 in signaling domain, the data structure of the logical frame configuration signal further include: be used to indicate current carrier frequency
On all positions of the physical frame in the physical frame configuration period pattern of current logic channel on time dimension signaling domain, use
In the signaling domain of the frequency values of the carrier frequency of instruction carrying current logic channel；When the letter in the signaling domain of the type of the logic channel
When to enable domain value be the 4th type signaling domain value, the data structure of the logical frame configuration signal further include: according to currently patrolling
Collect the loop body of physical frame initial time circulation in the physical frame configuration period pattern of channel；When the object according to current logic channel
The loop body of physical frame initial time circulation in frame configuration period pattern is managed 0 to the object for being used to indicate current logic channel
When managing in frame configuration period pattern in the signaling domain value -1 in the signaling domain of the quantity of physical frame initial time, the logical frame is matched
The data structure that confidence enables further include: be used to indicate the letter of the time interval between current initial time and next initial time
Enable domain；When it is described be used to indicate various optional logical frame signaling domains in logical frame whether obtain using the signaling domain in signaling domain take
When value is four particular value, the data structure of the logical frame configuration signal further include: be used to indicate the letter of the quantity of auxiliary flow
Enable domain, the 4th reserved signaling domain, the loop body recycled according to auxiliary flow；When the loop body recycled according to auxiliary flow is 0 and described
When being used to indicate signaling domain value -1 in the signaling domain of the quantity of auxiliary flow, the data structure of the logic configuration signal is also wrapped
It includes: being used to indicate the signaling domain and the 5th reserved signaling domain of current auxiliary stream type；The data structure of the logic configuration signal
It further include the 6th reserved signaling domain.
Optionally, the data structure of the logical frame dynamic signaling includes: to be used to indicate current logic frame in logic superframe
The signaling domain of interior index, is used the signaling domain for being used to indicate initial address of the Class1 service transmission channel in current logic frame
In initial address of instruction 2 service transmission channel of type in current logic frame signaling domain, be used to indicate it is super from current logic
The signaling domain of the quantity of logic superframe where frame changes to logical frame configuration signal value between logic superframe, logically frame
The loop body for the transmission channel circulation for including；When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using
Signaling domain signaling domain value be the first particular value when, the data structure of the logical frame dynamic signaling further include: for referring to
Show the letter of the quantity for the data cell being spaced between two time sub-pieces initial positions in the same transmission channel of current logic frame
Enable domain；When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using the signaling domain value in signaling domain be
4th particular value, the data structure of the logical frame dynamic signaling further include: the loop body recycled according to auxiliary flow；When according to auxiliary
When the loop body for helping stream to recycle is in the 0 signaling domain value -1 with the signaling domain for the quantity for being used to indicate auxiliary flow, the logic
The data structure of frame dynamic signaling further include: be used to indicate auxiliary flow and reserve signaling domain and the 8th reserved signaling domain.
Optionally, when the loop body of transmission channel that logically frame includes circulation 0 and is being used to indicate logical frame and includes
Transmission channel quantity signaling domain signaling domain value -1 in when, the logical frame dynamic signaling includes: to be used to indicate biography
The signaling domain of the index of defeated channel, the quantity for being used to indicate sub- convolutional deinterleaver that transmission channel uses in current logic frame
Signaling domain, according to the loop body of the delay channel cycle in interframe convolutional interleave；When logical according to the delay in interframe convolutional interleave
The loop body of road circulation takes in the signaling domain of 0 and the signaling domain of the quantity in the delay channel being used to indicate in interframe convolutional interleave
When in value -1, the data structure of the logical frame dynamic signaling further include: be used to indicate the delay by the loop body quantity
The signaling domain of the quantity for the Bit Interleaved Coded Modulation block that the interlacing frames of current logic frame are included is mapped to after channel delay；When
Be used to indicate various optional logical frame signaling domains in logical frame whether obtain using the signaling domain value in signaling domain be the 5th special
When definite value, the data structure of the logical frame dynamic signaling further include: the 7th reserved signaling domain.
Optionally, first includes: to be used to indicate from current logic superframe to logical frame with the data structure of signaling unit
The signaling domain of logic superframe quantity where the variation of configuration signal value between logic superframe is used to indicate in next logical frame
The signaling domain of emergency broadcast message whether is transmitted, the physical frame that next logical frame frame head is mapped to is used to indicate and is patrolled currently
It collects the signaling domain of the position in the physical frame configuration period pattern of channel, be used to indicate first data cell of next logical frame
The signaling domain of the data cell quantity at the last one data cell interval of physical frame signaling unit in physical frame is mapped to it, is used
In indicate the signaling domain of the initial address of first 2 service transmission channel of type in next logical frame, be used to indicate it is next
The signaling domain of the data cell quantity of two time sub-pieces starting position intervals of the same transmission channel in logical frame, for referring to
Show the signaling domain of initial address of the current transmission channel in next logical frame, be used to indicate current transmission channel next
The signaling domain of Bit Interleaved Coded Modulation number of blocks entrained by interlacing frames in logical frame is used to indicate and is currently resident biography
The signaling domain of the quantity of the associated association transmission channel of defeated channel, according to association biography associated with current resident transmission channel
The loop body of defeated Channel cyclical is used to indicate current transmission channel carries first with other transmission indicated by signaling unit
The signaling domain of channel quantity and according to current transmission channel carrying first with other transmission channels indicated by signaling unit
The loop body of circulation；When the loop body according to association transmission channel circulation associated with current resident transmission channel is in 0 and institute
State the signaling domain value -1 for being used to indicate the signaling domain of quantity of association transmission channel associated with transmission channel is currently resident
When middle, described first with signaling unit data structure further include: be used to indicate association transmission channel index signaling domain,
It is used to indicate initial address of the transmission channel corresponding with the association signaling domain of index of transmission channel in next logical frame
Signaling domain is used to indicate friendship of the transmission channel corresponding with the association signaling domain of index of transmission channel in next logical frame
Knit signaling domain, the 9th reserved signaling domain of Bit Interleaved Coded Modulation number of blocks entrained in frame.
Optionally, when first carried according to current transmission channel follows with other transmission channels indicated by signaling unit
The loop body of ring 0 and it is described be used to indicate current transmission channel carrying first with other transmission indicated by signaling unit
When in the signaling domain value -1 in the signaling domain of channel quantity, described first with signaling unit data structure further include: be used for
It indicates the signaling domain of the index of other transmission channels, be used to indicate transmission corresponding with the signaling domain of the index of other transmission channels
The signaling domain of initial address of the channel in next logical frame, be used to indicate it is corresponding with the signaling domain of the index of other transmission channels
Transmission channel Bit Interleaved Coded Modulation number of blocks entrained in the interlacing frames in next logical frame signaling domain and
Tenth reserved signaling domain；Described first with the data structure of signaling unit further includes the 11st reserved signaling domain.
As described above, the physical layer signaling system of the present invention based on wireless digital multimedia broadcast, has following
The utility model has the advantages that
Physical layer signaling system of the present invention based on wireless digital multimedia broadcast can functionally be supported
Different transmission channels use different configured transmissions, the service for supporting different terminals reception different brackets quality, the fast quick access of support
It receives emergency broadcast message, support auxiliary flow transmission.In aspect of performance, quick scanning is taken into account, saving power for terminal, has saved signaling overheads
Performance consider.
Detailed description of the invention
Fig. 1 is shown as the physical layer signaling system schematic of the invention based on wireless digital multimedia broadcast.
Fig. 2 is shown as the physical frame configuration period schematic diagram of logic channel k of the invention.
Component label instructions
The 1 physical layer signaling system based on wireless digital multimedia broadcast
11 independent signalling modules
12 with signalling module
111 leading signaling units
112 physical frame signaling units
113 logical frame signaling units
121 first with signaling unit
122 second with signaling unit
1131 logical frame configuration signals
1132 logical frame dynamic signalings
1133 logical frame expanded signallings
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Please refer to attached drawing.It should be noted that only the invention is illustrated in a schematic way for diagram provided in the present embodiment
Basic conception, only shown in schema then with related component in the present invention rather than component count, shape when according to actual implementation
Shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its component cloth
Office's kenel may also be increasingly complex.
Below with reference to embodiment and attached drawing, the present invention is described in detail.
The present embodiment provides a kind of physical layer signaling system based on wireless digital multimedia broadcast, it is applied to by wireless wide
In the cordless communication network for broadcasting transmitter and radio receiver composition, the wireless broardcast transmitter transmitting wireless signal is extremely
Radio receiver, the radio broadcasting signal include emergent broadcasting information and/or non-emergent broadcast message, described urgent wide
It broadcasts information and non-emergent broadcast message is carried by physical frame.In the present embodiment, the emergent broadcasting information is natural calamity class
Not, the broadcasted contents such as rank, the information are also required to the support of physical layer signaling.
Referring to Fig. 1, being shown as the physical layer signaling system schematic broadcasted based on wireless digital multimedia.Such as Fig. 1 institute
Show, the physical layer signaling structure 1 includes the independent signalling module 11 and adjoint signalling module 12 for parsing the physical frame.
Wherein, as shown in Figure 1, the independent signalling module 11 includes: leading signaling unit 111, physical frame signaling
(physical frame signaling, PFS) unit 112 and logical frame signaling (logical frame signaling,
LFS) unit 113.
The type of the leading signaling unit 111 physical frame for identification, responds the emergent broadcasting information, and obtain
Take the attribute information of the physical frame；The leading signaling unit 111 is carried by leading symbol；The leading signaling unit 11
Including time-domain information and frequency domain information；The frequency domain information includes the first domain (domain S1), the second domain (domain S2) and third domain (S3
Domain).Wherein, the time-domain information of the leading signaling unit 111 be used to indicate in present physical frame whether carry it is described tight
Anxious broadcast message.The time-domain information of the leading signaling unit 111 is indicated with EAS_FLAG, when EAS_FLAG value is " 1 ",
It indicates to carry emergent broadcasting information in present physical frame；When EAS_FLAG value is " 0 ", indicate not carry in present physical frame
Emergent broadcasting information.
The first domain (domain S1), the second domain (domain S2) and third domain in the frequency domain information of the leading signaling unit 111
(domain S3) carries the signaling information of 3 bits.First domain (domain S1) is used to indicate the type of the physical frame, referring to table 1,
The attribute information in first domain include targeting signal format, preamble transmission type and with the targeting signal format and
The one-to-one signaling domain value of preamble transmission type；Wherein, the targeting signal format includes fixing broadcast and mobile broadcast,
The preamble transmission type includes single-input single-output mode (SISO mode) and more/mono- output mode (MIXO of multi input
Mode).Wherein, the first signaling domain value in the first domain is 000, and the second signaling domain value in the first domain is 001, the of the first domain
Three signaling domain values are 010, and the 4th signaling domain value in the first domain is 100.
1: the first domain of table
Second domain is used to indicate the Discrete Fourier Transform of orthogonal frequency division multiplexing (OFDM) symbol in the physical frame
(FFT) points and protection interval percent information.And it is used to help reception radio broadcasting grade receiver quick obtaining to transmit substantially
Parameter.Referring to table 2.
2: the second domain of table (6/7/8M system)
The third domain is used to indicate physical frame signaling (PFS) mode of the physical frame, and the third domain includes first
Preset value and the second preset value.Refer to table 3.
Table 3: third domain
The physical frame signaling unit 112 is equally used for knowing the attribute information of the physical frame to assist parsing the object
Manage frame.In the present embodiment, the attribute information of the radio broadcasting signal includes that the emission parameter of radio broadcasting signal, physics are super
In frame under physical frame type/frame length and position, size/position of logical frame signaling unit and configured transmission, current logic channel
The time-frequency location and cell of one physical frame, the identification number of network and system etc..The data of the physical frame signaling unit 112
Structure includes that physical frame signaling unit often uses signaling mode and physical frame signaling unit simplified signaling mode.The physical frame signaling
Unit 112 is carried by signaling symbols.
The physical frame signaling unit often uses signaling mode using the physical frame in single carrier frequency system；In multi-carrier frequency system
Signaling mode is often used using the physical frame signaling unit on main carrier frequency in system, is used on the assistant carrier frequency in multi-carrier frequency system
The physical frame signaling unit often uses signaling mode or the physical frame signaling unit simplified signaling mode.Please refer to table 4, table 4
Describe the data structure of the physical frame signaling unit.
Table 4: the data structure of physical frame signaling unit
It can be seen that the data structure of the physical frame signaling unit includes following signaling domain from above-mentioned table 4:
S1:3 bit is identical as the first domain (domain S1) of the leading signaling unit 111.
S2:3 bit is identical as the second domain (domain S2) of the leading signaling unit 111.
S3:3 bit is identical as third domain (domain S3) of the leading signaling unit 111.
GUARD_INTERVAL:3 bit is used to indicate the protection of orthogonal frequency division multiplexing (OFDM) symbol in the physical frame
The signaling domain at interval.Wherein, the concrete meaning of the protection interval please refers to table 5.
Table 5: protection interval
| Signaling domain value | Protection interval ratio |
| 000 | 1/128 |
| 001 | 1/32 |
| 010 | 1/16 |
| 011 | 1/8 |
| 100 | 3/16 |
| 101 | 1/4 |
| 110-111 | It is reserved |
PILOT_PATTERN:4 bit is used to indicate the discrete of orthogonal frequency division multiplexing (OFDM) symbol in the physical frame
The signaling domain of pilot frequency mode.Wherein, the concrete meaning of the scattered pilot mode of OFDM symbol please refers to table 6.
Table 6:OFDM data symbol scattered pilot mode
| Signaling domain value | Pilot frequency mode |
| 0000 | PP1 |
| 0001 | PP2 |
| 0010 | PP3 |
| 0011 | PP4 |
| 0100 | PP5 |
| 0101 | PP6 |
| 0110 | PP7 |
| 0111 | PP8 |
| 1000-1111 | It is reserved |
PAPR:3 bit is used to indicate in physical frame using the signaling domain of papr (PAPR) method of reduction.
Different PAPR methods is used for different signaling domain values.Refer to table 7.
Table 7:PAPR method
| Signaling domain value | PAPR method |
| 000 | Without using PAPR |
| 001 | Only use ACE-PAPR |
| 010 | Only use TR-PAPR |
| 011 | Use ACE-PAPR and TR-PAPR |
| 100-111 | It is reserved |
When third domain (domain the S3) value of the leading signaling unit 111 is " xx0 ", the physical frame signaling unit
Data structure further includes following signaling domain:
UDS_LEN:22 bit, be used to indicate the duration of the undefined period of the main carrier frequency signaling domain,
NUM_SEGMENT:8 bit is used to indicate the letter of the quantity of radio slot in a physical frame on the main carrier frequency
Enable domain.When physics superframe includes the undefined period, undefined period is also indicated on main carrier frequency in a physics superframe simultaneously
Quantity.
Following signaling domain only occurs in FOR i=0,1,2,3 loop body.The loop body indicates to broadcast according to one
The loop body that physical frame types index recycles in period, the at this time data structure of the physical frame signaling unit further include:
PREAMBLE_TYPE:3 bit is used to indicate the signaling domain of the physical frame preamble signal type of the physical frame.I.e.
Physical frame type.Table 8 is please referred to, table 8 gives the various values in this signaling domain.
Table 8: physical frame preamble signal type
| Signaling domain value | Description |
| 000 | The preamble signal type of fixed broadcast SISO physical frame |
| 001 | The preamble signal type of fixed broadcast MIXO physical frame |
| 010 | The preamble signal type of mobile broadcast SISO physical frame |
| 011 | The preamble signal type of mobile broadcast MIXO physical frame |
| 100-111 | It is reserved |
SUBSEGMENT_POS:8 bit, the physical frame for being used to indicate present physical frame type appear in radio slot
The signaling domain of the position in subsegment is broadcasted when this bit value in signaling domain i-th (0≤i≤7) is " 1 ", indicates present physical
The physical frame of frame type appears in i-th of broadcast subsegment in main carrier frequency radio slot.The physical frame in subsegment is broadcasted on main carrier frequency
The sequencing that the physical frame type indicated according to PREAMBLE_TYPE in loop body occurs is arranged.When this signaling domain takes
When value is " 00000000 ", indicate that radio slot does not include the physical frame of the physical frame type of corresponding PREAMBLE_TYPE instruction.
When the signaling domain (PREAMBLE_TYPE) of the physical frame preamble signal type of the physical frame signaling domain value with
When signaling domain value is unequal in first domain (domain S1), the data structure of the physical frame signaling unit further include:
PF_LEN:24 bit is used to indicate the letter of the length of the physical frame of non-present physical frame type on the main carrier frequency
Enable domain.
LFS_FEC_TYPE:2 bit is used to indicate the signaling domain of the type of coding of logical frame signaling unit.Please refer to table
9, table 9 describes the type of coding of the logical frame signaling unit.
The type of coding of table 9:LFS
| Signaling domain value | Type of coding |
| 00 | 4800LDPC |
| 01-11 | It is reserved |
LFS_COD:2 bit is used to indicate the signaling domain of the code rate of logical frame signaling unit.Please refer to table 10, table
The code rate of 10 description logic frame signaling units.
The code rate of table 10:LFS
| Signaling domain value | Code rate |
| 00 | 1/5 |
| 01-11 | It is reserved |
LFS_MOD:3 bit is used to indicate the signaling domain of the modulation system of logical frame signaling unit.As shown in table 11, when
When the signaling domain value in the first domain is " 000 " or " 010 ", this signaling domain value indicates the modulation methods of the LFS using SISO mode
Formula；When the signaling domain value in the first domain is " 001 " or " 011 ", this signaling domain value indicates to use the LFS of Alamouti mode
Modulation system.
The modulation system of table 11:LFS
| Signaling domain value | Modulation system |
| 000 | BPSK |
| 001 | QPSK |
| 010 | NU-16QAM |
| 011 | NU-64QAM |
| 100 | NU-256QAM |
| 101-111 | It is reserved |
LFS_MIXO:3 bit is used to indicate more/mono- output (MIXO) modulation systems of multi input of logical frame signaling unit
Signaling domain.As shown in table 12.
The MIXO modulation system of table 12:LFS
| Signaling domain value | MIXO modulation system |
| 000 | Alamouti |
| 001-111 | It is reserved |
LFS_REPETITION_FLAG:1 bit is used to indicate in current logic frame and whether provides next logical frame
The signaling domain of logical frame dynamic signaling (LF-dyn).When this signaling domain value is 1, indicate to provide in current logic frame next
The LF-dyn signaling of a logical frame；When this signaling domain value is 0, indicate not providing next logical frame in current logic frame
LF-dyn signaling.
Whether LFS_EXTENSION_FLAG:1 bit is used to indicate in the logical frame signaling unit comprising expanded signalling
The signaling domain in domain.When this signaling domain value is 1, indicate that LFS includes expanded signalling domain；When this signaling domain value is 0, indicate
LFS does not include expanded signalling domain.
LFS_SIZE:21 bit is used to indicate data sheet of the logical frame signaling unit after coded modulation in logical frame
The signaling domain of the quantity of member.
LFS_DYN_CURRENT_SIZE:17 bit is used to indicate logical frame dynamic signaling bit length in logical frame
Signaling domain.
LFS_DYN_NEXT_SIZE:17 bit is used to indicate current logic when repeating to transmit using logical frame signaling unit
In frame channel in next logical frame logical frame dynamic signaling bit length signaling domain.When LFS_REPETITION_FLAG takes
Value (does not use LFS repeat transmission system) when being 0, this signaling domain value is 0.
LFS_EXT_SIZE:8 bit is used to indicate the signaling domain of logical frame expanded signalling domain bit length.Work as LFS_
When ENXTENSION value is 0, this signaling domain value is 0.
LFS_AP_RATIO_CURRENT:2 bit is used to indicate the additional verification baud number field of logical frame signaling unit
The signaling domain of current check bit quantity ratio.Table 13 is please referred to, the signaling format in the signaling domain is described, when this signaling domain value
When being 0, indicate that LFS does not use additional check bit.
Table 13:LFS_AP_RATIO_CURRENT signaling format
| Signaling domain value | Additional check bit quantity/current check bit quantity |
| 00 | 0 |
| 01 | 1 |
| 10 | 2 |
| 11 | 3 |
LFS_AP_DEPTH:3 bit is used to indicate carrying and to continuously transmit logical frame signaling unit in current logic frame attached
Add the signaling domain of the quantity of the front and continued logical frame of check bit.When this signaling domain value is 0~7, front and continued logical frame is indicated
Quantity is 1~8.
TX_ID:8 bit is used to indicate the signaling domain of the identification number of broadcast emission tower.
CELL_ID:16 bit is used to indicate the signaling domain of the identification number of broadcast cell.
SYSTEM_ID:16 bit is used to indicate the signaling domain of the identification number of broadcast system.
NETWORK_ID:16 bit is used to indicate the signaling domain of the identification number of broadcasting network.
LFS_DELTA:24 bit, be used to indicate the last one data cell of the physical frame signaling unit of present physical frame and
The signaling domain for the virtual resource number of particles being spaced between first data cell of the logical frame newly started in present physical frame.
When this signaling domain value is " FFFFFF ", indicate that logical frame not new in present physical frame starts.
LFS_CONF_SIZE:15 bit is used to indicate the bit of logical frame configuration (LF-config) signaling in logical frame
The signaling domain of length.When this signaling domain value is 0, indicate that current logic frame does not include LF-config signaling.
NUM_SYMBOLS:12 bit is used to indicate the orthogonal frequency in present physical frame included after removal leading symbol
Divide the signaling domain of multiplexed symbols quantity.
PF_ID:8 bit is used to indicate the signaling domain of index of the present physical frame in physics superframe.In physics superframe
The index of one physical frame should be set as 0.
REGEN_FLAG:3 bit is used to indicate the signaling domain that the number of broadcast singal is regenerated in broadcast system.Often
Secondary to regenerate broadcast singal, this signaling domain value adds 1 automatically.
NUM_LCH:3 bit is used to indicate the number of the logic channel carried in all physical frames of present physical frame type
The signaling domain of amount.
LCH_ID:3 bit is used to indicate the signaling domain of the index of the logic channel of present physical frame carrying.In a kind of object
In all physical frames for managing frame type, this signaling Field Number is unique, and value range is 0 to NUM_LCH-1.
LCH_TYPE:3 bit is used to indicate the signaling domain of the logical channel type of present physical frame carrying, such as 14 institute of table
Show the type of logic channel.Wherein, it is 000 that signaling domain value, which includes first kind signaling domain value, and Second Type signaling domain takes
Value is 001,
Third type signaling domain value is 010, and the 4th type signaling domain value is 011 etc..
Table 14: the type of logic channel
LCH_GROUP_ID:5 bit indicates logic channel belonging to current logic channel (being carried in present physical frame)
The signaling domain of the index of group.The radio receiver should be able to be received all in a logic channel group by single tuner
Logic channel.
LCH_CURRENT_PF_TIME_POS:3 bit is used to indicate present physical frame in the physics of current logic channel
Frame configures the signaling domain of the position in period pattern on time dimension.
LCH_NEXT_PF_FREQUENCY:32 bit, the load being used to indicate where the next physical frame of current logic channel
The signaling domain of frequent rate.This signaling domain is suitable for type A logic channel, type B logic channel and Type C described in table 14 and patrols
Collect the application scenarios of channel.
LCH_NEXT_PF_TIME_DELTA:24 bit is used to indicate current logic channel present physical frame postamble under
The signaling domain of time interval between one physical frame frame head.The time interval is as unit of the basic sampling period.This signaling domain
Application scenarios suitable for type A logic channel, type B logic channel and Type C logic channel described in table 14.
VERSION:4 bit is used to indicate the signaling domain of standard version number.The version number of standard is as shown in Table 15.
Table 15: standard version number
| Signaling domain value | Standard version number |
| 0000 | 1.0 |
| 0001-1111 | It is reserved |
RESERVED:12 bit, the first reserved signaling domain,
CRC_32:32 bit, 32 bit cyclic redundancy signaling domains.
When using the mapping method of type A logic channel, in PFS, PF_ID, LCH_CURRENT_PF_TIME_ are removed
Except POS, LCH_NEXT_PF_TIME_DELTA signaling domain, the value in other signaling domains should be super in one logic of the logic channel
It is remained unchanged in the physical frame that all logical frames map in frame.
When using the mapping method of type B logic channel, in PFS, LFS_DELTA, PF_ID, LCH_ are removed
Except CURRENT_PF_TIME_POS, LCH_NEXT_PF_TIME_DELTA signaling domain, the value in other signaling domains should be patrolled at this
It collects and is remained unchanged in the physical frame that all logical frames map in one logic superframe of channel.
When using the mapping method of Type C or D logic channel, in PFS, except S2, S3, GUARD_INTERVAL,
PILOT_PATTERN, PAPR, NUM_SYMBOLS, PF_ID signaling domain and LFS_DELTA, LFS_CONF_SIZE, LCH_
Except CURRENT_PF_TIME_POS, LCH_NEXT_PF_FREQUENCY, LCH_NEXT_PF_TIME_DELTA signaling domain,
The value in its signaling domain should remain unchanged in the physical frame that all logical frames map in one logic superframe of the logic channel.
The logical frame signaling unit 113 is used to know the attribute information of transmission channel in logical frame, for example, knowing logic
The information such as configured transmission, resource impact of transmission channel in frame.The logical frame signaling unit 113 includes logical frame configuration signal
1131, logical frame dynamic signaling 1132 and logical frame expanded signalling 1133.In the present embodiment, the logical frame expanded signalling
The 1133 reserved signaling domain for the extension of logical frame signaling unit future, being can arrangement.
Table 16 is please referred to, table 16 describes the data structure of the logical frame configuration signal 1131.
Table 16: logical frame configuration signal data structure
The data structure of the logical frame configuration signal 1131 includes:
OPTIONS_FLAG:8 bit, be used to indicate various optional logical frame signaling domains in logical frame whether obtain using
Signaling domain.Table 17 is please referred to, table 17 specifically lists the corresponding indicating bit in all optional logical frame signaling domains.When optional logic
When the corresponding indicating bit value in frame signaling domain is 1, indicate that there are the optional logical frame signaling domains in LFS；When corresponding indicating bit
When value is 0, indicate that the optional logical frame signaling domain is not present in LFS.In the present embodiment, the OPTIONS_FLAG signaling
The signaling domain value in domain include the first particular value be xxxxxxx1, the second particular value is xxxxxx1x, third particular value is
Xxxxx1xx, the 4th particular value are xxxx1xxx, the 5th particular value is xxx1xxxx etc.
Table 17:OPTIONS_FLAG signaling domain
NUM_TCH_MODES:6 bit is used to indicate the quantity of all transmission channel modes of logic superframe support
Signaling domain.The minimum value in this signaling domain is 1.
NUM_TCH:8 bit is used to indicate the signaling domain of the quantity for the transmission channel that logical frame includes.This signaling domain is most
Small value is 1.
NUM_LF:8 bit is used to indicate the signaling domain of the quantity for the logical frame that logic superframe includes.This signaling domain is most
Small value is 1.
LF_SIZE:22 bit is used to indicate the signaling domain of the quantity of the data cell of logical frame carrying.
As the signaling domain (OPTIONS_FLAG=of the quantity for being used to indicate the logical frame that logic superframe includes
" xxxxxxx1 ") be the first particular value when, the data structure of the logical frame configuration signal 1131 further include:
SUB_SLICES:16 bit is used to indicate the time sub-pieces that 2 service transmission channel of type includes in a logical frame
Quantity signaling domain.The quantity for the time sub-pieces that 2 business TCH of all types includes in a logical frame is identical.
When the number for the transmission channel that the loop body i for the transmission channel circulation that logically frame includes includes in 0 and logical frame
When in the signaling domain value -1 in the signaling domain of amount, the data structure of the logical frame configuration signal 1131 further include:
TCH_ID:8 bit is used to indicate the signaling domain of the index of current transmission channel.The signaling domain is in a broadcast
Number is unique in system.
TCH_MODE_ID:6 bit is used to indicate the signaling domain of the index of the transmission mode of current transmission channel.
NUM_STREAMS_PER_TCH:8 bit is used to indicate the quantity for the data flow that current transmission channel is carried
Signaling domain.
When the loop body i of the data flow circulation carried according to current transmission channel is held in 0 and current transmission channel
When in the signaling domain value -1 in the signaling domain of the quantity of the data flow of load, the data structure of the logical frame configuration signal 1131 is also
Include:
STREAM_ID:8 bit is used to indicate the signaling domain of the index of current data stream.
TCH_EAS_FLAG:1 bit, is used to indicate whether current transmission channel carries the second broadcast message (urgent broadcast
Information, EAS) signaling domain.When this signaling domain value is 1, current TCH carrying EAS message is indicated.
TCH_ANCHOR_FLAG:1 bit is used to indicate whether current transmission channel is the signaling domain for being resident transmission channel.
When this signaling domain value is 1, indicate that current transmission channel (TCH) is resident transmission channel (TCH).
TCH_AS_A_FLAG:1 bit, is used to indicate whether current TCH carries first with signaling information (AS-A information)
Signaling domain.When this signaling domain value is 1, current TCH carrying AS-A signaling information is indicated.When TCH_ANCHOR_FLAG takes
When value is 0, then TCH_AS_A_FLAG value also should be 0.And
TCH_GROUP_ID:8 bit is used to indicate the index of the affiliated transmission channel group of current transmission channel in broadcast system
Signaling domain.
When the signaling domain value in the signaling domain of the quantity for being used to indicate the logical frame that logic superframe includes is second special
When definite value, the data structure of the logical frame configuration signal 1131 further include:
RESERVED_1:32 bit, the second reserved signaling domain.
When the loop body i for all transmission channel cycle of modes that logically superframe is supported is super in 0 and instruction logic
When in the signaling domain value (NUM_TCH_MODE) -1 in the signaling domain of the quantity for all transmission channel modes that frame is supported, institute
State the data structure of logical frame configuration signal 1131 further include:
TCH_MODE_ID:6 bit is used to indicate the signaling domain of the index of transmission channel mode.
TCH_TYPE:3 bit is used to indicate the signaling domain of transmission channel kinds.The transmission channel kinds such as 18 institute of table
Show.
Table 18: transmission channel kinds
| Signaling domain value | TCH type |
| 000 | Public TCH |
| 001 | Class1 business TCH |
| 010 | 2 business TCH of type |
| 011-111 | It is reserved |
TCH_FEC_TYPE:2 bit is used to indicate the signaling domain of forward error correction (FEC) mode of transmission channel use.It should
The specific descriptions in signaling domain are as shown in table 19.
Table 19:TCH_FEC_TYPE signaling domain
| Signaling domain value | FEC mode |
| 00 | 19K LDPC |
| 01 | 57K LDPC |
| 10-11 | It is reserved |
TCH_COD:4 bit is used to indicate the signaling domain of the forward error correction bit error rate of transmission channel use.The signaling domain
Particular content is as shown in table 20.
Table 20:TCH_COD signaling domain
| Signaling domain value | FEC code rate |
| 0000 | 1/5 |
| 0001 | 1/4 |
| 0010 | 1/3 |
| 0011 | 5/12 |
| 0100 | 1/2 |
| 0101 | 7/15 |
| 0110 | 2/3 |
| 0111 | 3/4 |
| 1000 | 4/5 |
| 1001 | 5/6 |
| 1010-1111 | It is reserved |
When the signaling domain value in first domain is the second signaling domain value " 001 " or the 4th signaling domain value " 011st ",
The data structure of the logical frame configuration signal 1131 further include:
TCH_MIXO_TYPE:3 bit is used to indicate transmission channel using more/mono- output (MIXO) coding modes of multi input
Signaling domain.The signaling domain is as shown in table 21.
Table 21:TCH_MIXO_TYPE signaling domain
| Signaling domain value | MIXO coding mode |
| 000 | Alamouti |
| 001 | SM |
| 010-111 | It is reserved |
TCH_MOD:3 bit is used to indicate the signaling domain of the modulation system used in transmission channel.As shown in table 22, when
When the signaling domain value in the first domain (domain S1) is " 000 " or " 010 ", this signaling domain value is indicated in the TCH using SISO mode
Modulation system；When the signaling domain value in the first domain (domain S1) is " 001 " or " 011 " and TCH_MIXO_TYPE is " 000 ",
This signaling domain value indicates the modulation system in the TCH using Alamouti mode；When the signaling domain value in the first domain (domain S1)
For " 001 " or " 011 " and when TCH_MIXO_TYPE is " 001 ", this signaling domain value indicates every in the TCH using MIMO mode
The modulation system used on one transmitting antenna.
Table 22:TCH_MOD signaling domain
| Signaling domain value | Modulation system |
| 000 | QPSK |
| 001 | NU-16QAM |
| 010 | NU-64QAM |
| 011 | NU-256QAM |
| 100 | NU-1024QAM |
| 101-111 | It is reserved |
TCH_NUM_BLOCKS_MAX:12 bit is used to indicate the ratio that each transmission channel can carry in logical frame
The signaling domain of the maximum quantity of special Interleaved Coded Modulation (BICM) block.
TCH_CCI_NUM_BRANCH:4 bit is used to indicate the quantity in the delay channel in logic interframe convolutional interleave
Signaling domain.
When the loop body of the delay channel cycle in logically interframe convolutional interleave is used to indicate interframe volume to described 0
It is described to patrol when in the signaling domain value (TCH_CCI_NUM_BRANCH) -1 in the signaling domain of the quantity in the delay channel in product intertexture
Collect the data structure of frame configuration signal 1131 further include:
TCH_CCI_DELAY_BRANCH:5 bit is used to indicate the signaling domain of the delay depth in current delay channel.
When the signaling in the signaling domain (OPTIONS_FLAG) of the quantity for being used to indicate the logical frame that logic superframe includes
When domain value is third particular value (xxxxx1xx), the data structure of the logical frame configuration signal 1131 further include:
RESERVED_2:8 bit, third reserve signaling domain.
When the signaling domain value in the signaling domain of the type of the logic channel be third type signaling domain value be " 010 " or
When 4th type signaling domain value is " 011 ", the data structure of the logical frame configuration signal 1131 further include:
LCH_NUM_RF:3 bit is used to indicate the signaling domain of the quantity of the carrier frequency of carrying current logic channel；The signaling
The minimum value of the signaling domain value in domain is 1.
When the loop body of the carrier frequency circulation according to carrying current logic channel is used to indicate carrying current logic to described 0
When in the signaling domain value -1 in the signaling domain (LCH_NUM_RF) of the quantity of the carrier frequency of channel, the logical frame configuration signal 1131
Data structure further include:
LCH_RF_POS:8 bit, the physical frame being used to indicate in current carrier frequency are configured in the physical frame of current logic channel
The signaling domain of all positions in period pattern on time dimension.When i-th of this signaling domain bit value is 1, indicate current
There are a physical frames for i-th of initial time in the physical frame configuration period pattern of current logic channel on carrier frequency.
RF_FREQUENCY:32 bit is used to indicate the signaling domain of the frequency values of the carrier frequency of carrying current logic channel.
When the signaling domain value in the signaling domain (LCH_TYPE) of the type of the logic channel is that the 4th type signaling domain takes
When being worth (011), and according to the loop body i of physical frame initial time circulation in the physical frame of current logic channel configuration pattern 0
Signaling domain (the LCH_ of the quantity of physical frame initial time in period pattern is configured with the physical frame for being used to indicate current logic channel
When in signaling domain value -1 NUM_TIME), it is used to indicate physical frame in the physical frame configuration period pattern of current logic channel
The signaling domain value in the signaling domain of the quantity of initial time is by all LCH_NUM_RF bit vectors LCH_RF_POS by bit
It sums and obtains after position or operation.
The data structure of the logical frame configuration signal 1131 further include:
LCH_TIME_DELTA:24 bit, the time being used to indicate between current initial time and next initial time
The signaling domain at interval.
When the signaling in the signaling domain (OPTIONS_FLAG) of the quantity for being used to indicate the logical frame that logic superframe includes
When domain value is the 4th particular value " xxxx1xxx ", the data structure of the logical frame configuration signal 1131 further include:
NUM_AUX:4 bit is used to indicate the signaling domain of the quantity of auxiliary flow.When NUM_AUX value is 0, indicate to patrol
It collects and auxiliary flow is not present in frame.
AUX_CONFIG_RFU:8 bit, the 4th reserved signaling domain.
When the loop body recycled according to auxiliary flow is in 0 and the signaling domain (NUM_ of the quantity for being used to indicate auxiliary flow
When signaling domain value -1 AUX), the data structure of the logic configuration signal further include:
AUX_STREAM_TYPE:4 bit is used to indicate the signaling domain of current auxiliary stream type.The signaling domain such as 23 institute of table
Show.
Table 23:AUX_STREAM_TYPE signaling domain
| Signaling domain value | Assist stream type |
| 0000-1111 | It is reserved |
AUX_PRIVATE_CONFIG:28 bit, the 5th reserved signaling domain,
And RESERVED_3:8 bit, the 6th reserved signaling domain.
In the present embodiment, period pattern is configured in its physical frame to further illustrate that mapping logical channels are mapped physical frame
In location information related signaling domain meaning, Fig. 2 give a logic channel k physical frame configuration period schematic diagram, should
Logic channel use carrier wave aggregation transfer mode, i.e., the logical frame of one logic channel map to the physical frame on multiple carrier frequency and
Allow there are the times to overlap between physical frame on different carrier frequency, at this point, receiver uses single broad band tuner or multiple narrow
Band tuner receives data flow, to obtain carrier wave aggregation gain.Here, the physical frame configuration period of logic channel k is one
Carrier wave polymerization cycle.(1~carrier frequency of carrier frequency 4, corresponding carrier frequency index is from small to 4 carrier frequency for the mapping logical channels in the present embodiment
To greatly), physical frame configures in period pattern and shares 7 physical frames, 6 initial times.
The physical frame configuration period pattern of the logic channel is determined by the signaling domain in LF_config.Specifically, the logic
Channel transmits on 4 carrier frequency, i.e., LCH_NUM_RF value in signaling domain is 4.The frequency values of carrier frequency 1 to carrier frequency 4 be respectively f1 extremely
f4.On the 1st carrier frequency (i.e. the carrier frequency 1 of the present embodiment), there are 2 physical frames, is located at the 1st initial time and the 5th
Initial time, i.e., LCH_RF_POS value in signaling domain is 10001000 at this time；2 physical frames on carrier frequency 2 are located at the 2nd
Initial time and the 4th initial time, i.e., LCH_RF_POS value in signaling domain is 01010000 at this time；2 physics on carrier frequency 3
Frame is located at the 3rd initial time and the 6th initial time, i.e., LCH_RF_POS value in signaling domain is 00100100 at this time；
1 physical frame on carrier frequency 3 is located at the 4th initial time, i.e., LCH_RF_POS value in signaling domain is 00010000 at this time.To load
Frequently 1 to 4 corresponding 4 bit vectors LCH_RF_POS of carrier frequency is later 11111100 by bit or operation, therefore current logic
The quantity of physical frame initial time is 6 in the physical frame configuration period pattern of channel, i.e. signaling domain LCH_NUM_TIME value is
6。
In general, logic channel physical frame configuration period pattern in, according to first initial time from small to large, rear carrier frequency rope
Draw from small reach and number is incremented by since 0 to the position of physical frame.Therefore, in the present embodiment, object that the 1st initial time starts
Managing frame (on carrier frequency 1) is that the logic channel physical frame configures 0 physical frame of position in period pattern；2nd initial time starts
Physical frame (on carrier frequency 2) be the logic channel physical frame configure period pattern in 1 physical frame of position；3rd initial time
The physical frame (on carrier frequency 3) of beginning is that the logic channel physical frame configures 2 physical frame of position in period pattern；For in
The physical frame that 4 initial times start has 2, respectively on carrier frequency 2 and carrier frequency 4, first opens the 4th initial time on carrier frequency 2
The physical frame Position Number of beginning is 3, then is 4 to the physical frame Position Number that the 4th initial time starts on carrier frequency 4；Class according to this
It pushes away, Position Number of the logic channel k mapped physical frame in its physical frame configuration period pattern is as shown in Figure 2.
In the physical frame configuration period pattern of Fig. 2 logic channel k, first initial time and second initial time it
Between time interval LCH_TIME_DELTA between 1 physical frame initial time of 0 physical frame initial time of position and position when
Between be spaced t1；Time interval LCH_TIME_DELTA between second initial time and third initial time is 1 object of position
Manage the time interval t2 between frame initial time and 2 physical frame initial time of position；Third initial time and the 4th starting
Time interval LCH_TIME_DELTA between moment is that 2 physical frame initial time of position and (or position 4) physical frame of position 3 rise
Time interval t3 between moment beginning；Time interval LCH_TIME_ between 4th initial time and the 5th initial time
Time interval t4 of the DELTA between 5 physical frame initial time of position 3 (or position 4) physical frame initial time and position；5th
Time interval LCH_TIME_DELTA between a initial time and the 6th initial time be 5 physical frame initial time of position with
Time interval t5 between 6 physical frame initial time of position；6th time between initial time and next initial time
Being spaced LCH_TIME_DELTA is that 0 physical frame of position originates in 6 physical frame initial time of position and next carrier wave polymerization cycle
Time interval t6 between moment.
The data structure of the logic dynamic signaling (LF-dyn) 1132 is as shown in table 24.
The data structure of table 24:LF-dyn signaling
As shown in table 24, the data structure of the logic dynamic signaling (LF-dyn) 1132 includes:
LF_ID:8 bit is used to indicate the signaling domain of index of the current logic frame in logic superframe；In logic superframe
The index of one logical frame is 0.
When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using signaling domain (OPTIONS_
FLAG when signaling domain value) is the first particular value " xxxxxxx1 ", the data structure of the logical frame dynamic signaling further include:
SUB_SLICE_INTERVAL:22 bit is used to indicate two times in the same transmission channel of current logic frame
The signaling domain of the quantity for the data cell being spaced between sub-pieces initial position.When this signaling domain value is 0, current logic is indicated
2 business TCH of type is not included in frame.
TYPE_1_TCH_START:22 bit is used to indicate starting of the Class1 service transmission channel in current logic frame
The signaling domain of address.
TYPE_2_TCH_START:22 bit is used to indicate starting of 2 service transmission channel of type in current logic frame
The signaling domain of address.When this signaling domain value is 0, indicate that 2 business TCH of type is not present in current logic frame.
LF_CONF_CHANGE_COUNTER:8 bit is used to indicate from current logic superframe to logical frame configuration signal and takes
The signaling domain of the quantity of logic superframe where value variation between logic superframe (is patrolled where the variation of the value of signaling containing LF-config
Collect superframe).When this signaling domain value is 0, indicate that LF-config signaling value does not change in the next superframe.When
When this signaling domain value is 1, indicate that LF-config signaling value will change in the next superframe.This counter is minimum
Initial value is 2.
When the loop body i of transmission channel that logically frame includes circulation 0 and is being used to indicate the transmission that logical frame includes
When in the signaling domain value in the signaling domain (NUM_TCH) of the quantity of channel, the logical frame dynamic signaling includes:
TCH_ID:8 bit is used to indicate the signaling domain of the index of transmission channel.
When the loop body j according to the delay channel cycle in interframe convolutional interleave 0 and is being used to indicate interframe convolutional interleave
In delay channel quantity (TCH_CCI_NUM_BRANCH) signaling domain signaling domain value -1 in when, the logical frame is dynamic
The data structure of state signaling further include:
TCH_NUM_BLOCKS:12 bit is used to indicate the delay channel delay by the loop body quantity (j-th)
The signaling domain of the quantity for the Bit Interleaved Coded Modulation block that the interlacing frames of current logic frame are included is mapped to afterwards；
NUM_CCI:12 bit is used to indicate the quantity for the sub- convolutional deinterleaver that transmission channel uses in current logic frame
Signaling domain.
When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using signaling domain (OPTIONS_
FLAG when signaling domain value) is the 5th particular value (xxx1xxxx), the data structure of the logical frame dynamic signaling further include:
RESERVED_1:8 bit, the 7th reserved signaling domain.
When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using signaling domain (OPTIONS_
FLAG signaling domain value) is the 4th particular value (xxxx1xxx), and 0 and is being used to indicate according to auxiliary flow circulation loop body i
When in the signaling domain value -1 in the signaling domain (NUM_AUX) of the quantity of auxiliary flow, the data structure of the logical frame dynamic signaling
Further include: AUX_PRIVATE_DYN:48 bit is used to indicate auxiliary flow and reserves signaling domain.
And RESERVED_2:16 bit, the 8th reserved signaling domain.
The radio receiver continuously receives radio broadcasting signal by the adjoint signalling module 12.It is described adjoint
Signalling module 12 include: first with signaling unit 121 and second with signaling unit 122, i.e., with signaling unit A (AS-A)
With adjoint signaling unit B.Wherein, AS-B is used to carry the timing information of data packet, to help receiver according to accurate timing
Recovery and output stream.
Transmission channel TCH resident for one, to be resident TCH corresponding with this in logical frame configuration (LF-conf) signaling
The domain TCH_AS_A_FLAG value is necessary for 1, and the region PAS in the TCH in BBFRAME carries AS-A.
For an association transmission channel TCH, as TCH_AS_A_FLAG corresponding with association TCH in LF-conf signaling
When domain value is 1, the region PAS in the TCH in BBFRAME carries AS-A；When corresponding with association TCH in LF-conf signaling
The domain TCH_AS_A_FLAG value when being 0, the region PAS in the TCH in BBFRAME does not carry AS-A.
The correlation of the TCH next logical frame Nei is dynamic to be indicated for a TCH in current logic frame, the AS-A of carrying
State signaling information；When NUM_ASSOC_TCH value is greater than 0, it is also represented by its associated dynamic for being associated with TCH in next logical frame
Signaling information；When NUM_OTHER_TCH_AS is greater than 0, it is also represented by the associated dynamic signaling of other TCH in next logical frame
Information, to reduce channel change period.
Described first is used to indicate transmission channel physical layer signaling in next logical frame with signaling unit 121
Domain.As shown in Table 25 described first with signaling unit 121 data structure.
Table 25: the first with signaling unit data structure
| Signaling domain | Length (bit) |
| LF_CONF_CHANGE_COUNTER | 8 |
| EAS_FLAG | 1 |
| LF_START_PF_POS | 6 |
| LFS_START | 24 |
| TYPE_2_TCH_START | 22 |
| SUB_SLICE_INTERVAL | 22 |
| CURRENT_TCH_START | 22 |
| CURRENT_TCH_NUM_BLOCKS | 12 |
| NUM_ASSOC_TCH | 3 |
| For i=0...NUM_ASSOC_TCH-1 | |
| ASSOC_TCH_ID | 8 |
| ASSOC_TCH_START | 22 |
| ASSOC_TCH_NUM_BLOCKS | 12 |
| RESERVED_1 | 8 |
| } | |
| NUM_OTHER_TCH_AS | 8 |
| For i=0 ... NUM_OTHER_TCH_AS-1 |
| OTHER_TCH_ID | 8 |
| OTHER_TCH_START | 22 |
| OTHER_TCH_NUM_BLOCKS | 12 |
| RESERVED_2 | 8 |
| } | |
| RESREVED_3 | 16 |
As can be seen from Table 25, described first includes: with the data structure of signaling unit
LF_CONF_CHANGE_COUNTER:8 bit is used to indicate from current logic superframe to logical frame configuration signal and takes
The signaling domain of logic superframe quantity where value variation between logic superframe.The variation of the signaling domain value of signaling containing LF-config
Place logic superframe.When this signaling domain value is 0, indicate that LF-config signaling value does not change in the next superframe
Become.When this signaling domain value is 1, indicate that LF-config signaling value will change in the next superframe.This counter
Minimum initial value is 2.
EAS_FLAG:1 bit is used to indicate in next logical frame whether transmit emergent broadcasting information, signaling domain.When
When this signaling domain value is 1, indicate to transmit emergency broadcast message in next logical frame.
LF_START_PF_POS:6 bit is used to indicate physical frame that next logical frame frame head is mapped to current
The signaling domain of position in the physical frame configuration period pattern of logic channel.
LFS_START:24 bit is used to indicate first data cell of next logical frame and maps in physical frame with it
The signaling domain of the data cell quantity at the last one data cell interval of physical frame signaling unit.
TYPE_2_TCH_START:22 bit is used to indicate first 2 service transmission channel of type in next logical frame
Initial address signaling domain.2 business TCH of type if it does not exist, this signaling domain value are 0.
SUB_SLICE_INTERVAL:22 bit is used to indicate two of the same transmission channel in next logical frame
The signaling domain of the data cell quantity of time sub-pieces starting position interval.When this signaling domain value is 0, next logic is indicated
2 service transmission channel of type is not included in frame.
CURRENT_TCH_START:22 bit is used to indicate starting point of the current transmission channel in next logical frame
The signaling domain of location.
CURRENT_TCH_NUM_BLOCKS:12 bit is used to indicate current transmission channel in next logical frame
The signaling domain of entrained Bit Interleaved Coded Modulation number of blocks in interlacing frames.
NUM_ASSOC_TCH:3 bit is used to indicate association transmission channel associated with transmission channel is currently resident
The signaling domain of quantity.
When the loop body i according to association transmission channel circulation associated with current resident transmission channel is in 0 and the use
In instruction with it is current be resident transmission channel it is associated be associated with transmission channel quantity signaling domain (NUM_ASSOC_TCH) letter
When enabling in domain value -1, described first with signaling unit data structure further include:
ASSOC_TCH_ID:8 bit is used to indicate the signaling domain of the index of association transmission channel.
ASSOC_TCH_START:22 bit is used to indicate transmission corresponding with the association signaling domain of index of transmission channel
The signaling domain of initial address of the channel in next logical frame.If the corresponding TCH of ASSOC_TCH_ID does not map to next
A logical frame, this signaling domain value are 0.
ASSOC_TCH_NUM_BLOCKS:12 bit is used to indicate corresponding with the association signaling domain of index of transmission channel
Transmission channel Bit Interleaved Coded Modulation (BICM) number of blocks entrained in the interlacing frames in next logical frame letter
Enable domain,
RESERVED_1:8 bit, the 9th reserved signaling domain.
NUM_OTHER_TCH_AS:8 bit, be used to indicate current transmission channel carrying first are signified with signaling unit
The signaling domain for the other transmission channel quantity shown.
When first carried according to current transmission channel follows with what other transmission channels indicated by signaling unit recycled
Ring body i 0 and it is described be used to indicate current transmission channel carrying first with other transmission channels indicated by signaling unit
When in the signaling domain value -1 in the signaling domain of quantity (NUM_OTHER_TCH_AS), described first with signaling unit data knot
Structure further include:
OTHER_TCH_ID:8 bit is used to indicate the signaling domain of the index of other transmission channels.
OTHER_TCH_START:22 bit is used to indicate transmission corresponding with the signaling domain of the index of other transmission channels
The signaling domain of initial address of the channel in next logical frame.If the corresponding TCH of OTHER_TCH_ID does not map to next
A logical frame, this signaling domain value are 0.
OTHER_TCH_NUM_BLOCKS:12 bit is used to indicate corresponding with the signaling domain of the index of other transmission channels
Transmission channel Bit Interleaved Coded Modulation (BICM) number of blocks entrained in the interlacing frames in next logical frame letter
Enable domain.
RESERVED_2:8 bit, the tenth reserved signaling domain
And RESERVED_3:16 bit, the 11st reserved signaling domain.
If a TCH does not carry any business datum in next logical frame, scheduler should execute following operation
One of:
In current logic frame, CURRENT_TCH_NUM_BLOCKS signaling domain value is 0；
In current logic frame, CURRENT_TCH_NUM_BLOCKS signaling domain value is 1, and correspondingly next
A BBFRAME is generated in logical frame, wherein DFL=0, which is served only for carrying AS.
Physical layer signaling system of the present invention based on wireless digital multimedia broadcast can functionally be supported
Different transmission channels use different configured transmissions, the service for supporting different terminals reception different brackets quality, the fast quick access of support
It receives emergency broadcast message, support auxiliary flow transmission.In aspect of performance, quick scanning is taken into account, saving power for terminal, has saved signaling overheads
Performance consider.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (15)
1. a kind of physical layer signaling system based on wireless digital multimedia broadcast, applied to by wireless broardcast transmitter and wirelessly
In the cordless communication network of broadcasting receiver composition, wireless broardcast transmitter transmitting radio broadcasting signal to the radio broadcasting is connect
Receipts machine, the radio broadcasting signal include emergent broadcasting information and/or non-emergent broadcast message, the emergent broadcasting information and non-
Emergent broadcasting information is carried by physical frame, which is characterized in that the physical layer signaling system based on wireless digital multimedia broadcast
System includes the independent signalling module and adjoint signalling module for parsing the physical frame:
Wherein, the independent signalling module includes:
Leading signaling unit, the type of the physical frame, responds the emergent broadcasting information for identification, and obtains the physics
The attribute information of frame；The leading signaling unit is carried by leading symbol；The leading signaling unit include time-domain information and
Frequency domain information；The frequency domain information includes the first domain, the second domain and third domain；First domain is used to indicate the physical frame
Type；Second domain is used to indicate the Discrete Fourier Transform points of OFDM symbol in the physical frame and protects
Protect space ratio information；The third domain is used to indicate the physical frame signaling mode of the physical frame；
Physical frame signaling unit, for knowing the attribute information of the physical frame to assist parsing the physical frame；The physics
The data structure of frame signaling unit is divided into physical frame signaling and often uses signaling mode and physical frame signaling simplified signaling mode；The object
Frame signaling unit is managed to carry by signaling symbols；
Logical frame signaling unit, for knowing the attribute information of transmission channel in logical frame；The logical frame signaling unit includes
Logical frame configuration signal, logical frame dynamic signaling and logical frame expanded signalling；
Include: with signalling module
First, with signaling unit, is used to indicate the physical layer signaling domain of transmission channel dynamic change in next logical frame；
With
Second with signaling unit.
2. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that: institute
State the first domain attribute information include targeting signal format, preamble transmission type and with the targeting signal format and preceding
Lead the one-to-one signaling domain value of transport-type；Wherein, the targeting signal format includes fixed broadcast and mobile broadcast, institute
Stating preamble transmission type includes single-input single-output mode and more/mono- output modes of multi input.
3. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that: institute
State Discrete Fourier Transform points and protection interval ratio that the second domain is used to indicate OFDM symbol in the physical frame
Example information；The third domain is used to indicate the physical frame signaling mode of the physical frame, and the third domain includes the first preset value
With the second preset value.
4. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that: institute
It states physical frame signaling unit and uses the common signaling mode in single carrier frequency system；Make on main carrier frequency in multi-carrier frequency system
Signaling mode is often used with the physical frame signaling, the common letter of the physical frame signaling is used on the assistant carrier frequency in multi-carrier frequency system
Enable mode or the physical frame signaling simplified signaling mode；The data structure of the physical frame signaling unit includes: described leading
First domain of signaling unit, the second domain, third domain, the protection interval for being used to indicate OFDM symbol in the physical frame
Signaling domain, be used to indicate OFDM symbol in the physical frame scattered pilot mode signaling domain and for referring to
The physical frame signaling list for showing the signaling domain in physical frame using reduction papr method, being used to indicate present physical frame
It is spaced between first data cell of the logical frame newly started in the last one first data cell and present physical frame virtual
The signaling domain of resource particle quantity, the signaling domain for being used to indicate the bit length of logical frame configuration signal in logical frame, for referring to
Show the signaling domain for the OFDM symbol quantity for being included after removal leading symbol in present physical frame, be used to indicate and work as
The signaling domain of index of the preceding physical frame in physics superframe is used to indicate the number that broadcast singal is regenerated in broadcast system
Signaling domain, be used to indicate the logic channel carried in all physical frames of present physical frame type quantity signaling domain, be used for
It indicates the signaling domain of the index of the logic channel of present physical frame carrying, be used to indicate the logic channel class of present physical frame carrying
The signaling domain of type, is used to indicate current object at the signaling domain for being used to indicate the index of logic channel group belonging to current logic channel
The signaling domain of position of the reason frame in the physical frame configuration period pattern of current logic channel on time dimension is used to indicate currently
The signaling domain of carrier frequency where the next physical frame of logic channel is used to indicate current logic channel present physical frame postamble
The signaling domain of time interval between next physical frame frame head, the signaling domain for being used to indicate standard version number, first are reserved
Signaling domain and 32 bit cyclic redundancy signaling domains.
5. the physical layer signaling system according to claim 4 based on wireless digital multimedia broadcast, it is characterised in that: when
When the signaling domain value in the third domain of the leading signaling unit is the first preset value, the data knot of the physical frame signaling unit
Structure further include: be used to indicate the signaling domain of the duration of the undefined period of the main carrier frequency, be used to indicate the main carrier frequency
The signaling domain of the quantity of radio slot in a upper physical frame is followed according to what physical frame types index in a radio slot recycled
Ring body, be used to indicate logical frame signaling unit type of coding signaling domain, be used to indicate logical frame signaling unit coding speed
The signaling domain of rate, be used to indicate logical frame signaling unit modulation system signaling domain, be used to indicate logical frame signaling unit
The signaling domain of more/mono- output modulation systems of multi input is used to indicate in current logic frame whether provide patrolling for next logical frame
The signaling domain of volume frame dynamic signaling, be used to indicate in the logical frame signaling unit whether the signaling domain comprising expanded signalling domain,
It is used to indicate the signaling domain of the quantity of data cell of the logical frame signaling unit after coded modulation in logical frame, is used to indicate
The signaling domain of logical frame dynamic signaling bit length in logical frame is used to indicate when being repeated and transmitted using logical frame signaling unit and works as
The signaling domain of logical frame dynamic signaling bit length in next logical frame in preceding logical frame channel is used to indicate logical frame extension
The signaling domain of signaling domain bit length, the additional current check bit of verification baud number field for being used to indicate logical frame signaling unit
The signaling domain of quantity ratio is used to indicate carrying and continuously transmits logical frame signaling unit in current logic frame and adds check bit
Front and continued logical frame quantity signaling domain, be used to indicate broadcast emission tower identification number signaling domain, be used to indicate broadcast it is small
The signaling domain of the identification number in area, be used to indicate broadcast system identification number signaling domain and be used to indicate the mark of broadcasting network
Number signaling domain.
6. the physical layer signaling system according to claim 5 based on wireless digital multimedia broadcast, it is characterised in that: when
When the loop body recycled according to physical frame types index in a radio slot is in 0 to 3, the number of the physical frame signaling unit
According to structure further include: be used to indicate the signaling domain of the physical frame preamble signal type of the physical frame and be used to indicate current object
The physical frame of reason frame type appears in the signaling domain of the position in the broadcast subsegment in radio slot；When the physics of the physical frame
When signaling domain value is unequal in the signaling domain value in the signaling domain of frame preamble signal type and first domain, the physical frame
The data structure of signaling unit further include: be used to indicate the length of the physical frame of non-present physical frame type on the main carrier frequency
Signaling domain.
7. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that: institute
The data structure for stating logical frame configuration signal includes: to be used to indicate whether various optional logical frame signaling domains in logical frame are made
Signaling domain, be used to indicate logic superframe support all transmission channel modes quantity signaling domain, be used to indicate
The signaling domain of the quantity for the transmission channel that logical frame includes, be used to indicate the logical frame that logic superframe includes quantity signaling
Domain and be used to indicate the signaling of quantity of data cell of logical frame carrying, the transmission channel that logically frame includes recycles
The loop body of the transmission mode circulation for all transmission channels that loop body and logically superframe are supported；It is used to indicate when described
In logical frame various optional logical frame signaling domains whether obtain using signaling domain signaling domain value be the first particular value when, institute
State the data structure of logical frame configuration signal further include: being used to indicate 2 service transmission channel of type in a logical frame includes
The signaling domain of the quantity of time sub-pieces.
8. the physical layer signaling system according to claim 7 based on wireless digital multimedia broadcast, it is characterised in that: when
The signaling of the quantity for the transmission channel that the loop body of transmission channel that the logically frame includes circulation includes in 0 and logical frame
When in the signaling domain value -1 in domain, the data structure of the logical frame configuration signal further include: be used to indicate current transmission channel
Index signaling domain, be used to indicate current transmission channel transmission mode index signaling domain, be used to indicate current transmission
The signaling domain of the quantity for the data flow that channel is carried, the data flow circulation carried according to current transmission channel loop body,
It is used to indicate whether current transmission channel carries the signaling domain of the emergency broadcast message, whether is used to indicate current transmission channel
For be resident transmission channel signaling domain, be used to indicate current transmission channel whether carry first with signaling information signaling domain,
And it is used to indicate the signaling domain of the index of the affiliated transmission channel group of current transmission channel in broadcast system；Believe when according to current transmission
The letter in the signaling domain of the quantity for the data flow that the loop body of data flow that road is carried circulation is carried in 0 and current transmission channel
When enabling in domain value -1, the data structure of the logical frame configuration signal further include: be used to indicate the index of current data stream
Signaling domain；When it is described be used to indicate various optional logical frame signaling domains in logical frame whether obtain using signaling domain signaling domain
When value is the second particular value, the data structure of the logical frame configuration signal further include: the second reserved signaling domain.
9. the physical layer signaling system according to claim 8 based on wireless digital multimedia broadcast, it is characterised in that: when
The institute that the loop body of the transmission mode circulation for all transmission channels that logically superframe is supported is supported in 0 and instruction logic superframe
When having in the signaling domain value -1 in the signaling domain of the quantity of transmission channel mode, the data knot of the logical frame configuration signal
Structure further include: be used to indicate the signaling domain of the index of transmission channel mode, the signaling domain for being used to indicate transmission channel kinds,
It is used to indicate the signaling domain of the forward error correction mode of transmission channel use, is used to indicate the forward error correction error code of transmission channel use
The signaling domain of rate, the signaling domain for being used to indicate the modulation system used in transmission channel are used to indicate each biography in logical frame
The signaling domain of the maximum quantity for the Bit Interleaved Coded Modulation block that defeated channel can carry and be used to indicate logic interframe convolution friendship
The loop body of the signaling domain of the quantity in the delay channel knitted, logically the delay channel cycle in interframe convolutional interleave；When
It is described to patrol when the signaling domain value in the first domain of the leading signaling unit is the second signaling domain value or the 4th signaling domain value
Collect the data structure of frame configuration signal further include: be used to indicate the letter that transmission channel uses more/mono- exports coding modes of multi input
Enable domain；When it is described be used to indicate various optional logical frame signaling domains in logical frame whether obtain using the signaling domain in signaling domain take
When value is third particular value, the data structure of the logical frame configuration signal further include: third reserves signaling domain.
10. the physical layer signaling system according to claim 9 based on wireless digital multimedia broadcast, it is characterised in that:
When the loop body of the delay channel cycle in logically interframe convolutional interleave is used to indicate in interframe convolutional interleave 0 to described
Delay channel quantity signaling domain signaling domain value -1 in when, the data structure of the logical frame configuration signal is also wrapped
It includes: being used to indicate the signaling domain of the delay depth in current delay channel.
11. the physical layer signaling system according to claim 10 based on wireless digital multimedia broadcast, it is characterised in that:
When the signaling domain value in the signaling domain of the type of the logic channel is third type signaling domain value or the 4th type signaling domain
When value, the data structure of the logical frame configuration signal further include: be used to indicate the number of the carrier frequency of carrying current logic channel
The loop body of the signaling domain of amount and the carrier frequency circulation according to carrying current logic channel；When according to carrying current logic channel
Carrier frequency circulation loop body 0 to it is described be used to indicate carrying current logic channel carrier frequency quantity signaling domain signaling domain
When in value -1, the data structure of the logical frame configuration signal further include: the physical frame being used to indicate in current carrier frequency is being worked as
The signaling domain of all positions in the physical frame configuration period pattern of preceding logic channel on time dimension is used to indicate carrying currently
The signaling domain of the frequency values of the carrier frequency of logic channel；When the signaling domain value in the signaling domain of the type of the logic channel is the 4th
When type signaling domain value, the data structure of the logical frame configuration signal further include: according to the physical frame of current logic channel
Configure the loop body of physical frame initial time circulation in period pattern；When the physical frame configuration cyclic graph according to current logic channel
The loop body that physical frame initial time recycles in sample configures cyclic graph 0 to the physical frame for being used to indicate current logic channel
When in sample in the signaling domain value -1 in the signaling domain of the quantity of physical frame initial time, the data knot of the logical frame configuration signal
Structure further include: be used to indicate the signaling domain of the time interval between current initial time and next initial time；When the use
In various optional logical frame signaling domains in instruction logical frame whether obtain using the signaling domain value in signaling domain be the 4th specific
When value, the data structure of the logical frame configuration signal further include: be used to indicate the signaling domain, the 4th reserved of the quantity of auxiliary flow
Signaling domain, the loop body recycled according to auxiliary flow；When the loop body recycled according to auxiliary flow 0 and described is being used to indicate auxiliary flow
Quantity signaling domain signaling domain value -1 when, the data structure of the logic configuration signal further include: be used to indicate current
Assist the signaling domain and the 5th reserved signaling domain of stream type；The data structure of the logic configuration signal further includes the 6th reserved letter
Enable domain.
12. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that:
The data structure of the logical frame dynamic signaling includes: to be used to indicate the signaling of index of the current logic frame in logic superframe
Domain, is used to indicate 2 industry of type at the signaling domain for being used to indicate initial address of the Class1 service transmission channel in current logic frame
The signaling domain for initial address of the transmission channel in current logic frame of being engaged in is used to indicate the configuration from current logic superframe to logical frame
The signaling domain of the quantity of logic superframe where the variation of signaling value between logic superframe, the transmission channel that logically frame includes
The loop body of circulation；When be used to indicate various optional logical frame signaling domains in logical frame whether obtain using signaling domain signaling
When domain value is the first particular value, the data structure of the logical frame dynamic signaling further include: it is same to be used to indicate current logic frame
The signaling domain of the quantity for the data cell being spaced between two time sub-pieces initial positions in one transmission channel；When being used to indicate
In logical frame various optional logical frame signaling domains whether obtain using signaling domain signaling domain value be the 4th particular value, it is described
The data structure of logical frame dynamic signaling further include: the loop body recycled according to auxiliary flow；When the circulation recycled according to auxiliary flow
When body is in the 0 signaling domain value -1 with the signaling domain for the quantity for being used to indicate auxiliary flow, the number of the logical frame dynamic signaling
According to structure further include: be used to indicate auxiliary flow and reserve signaling domain and the 8th reserved signaling domain.
13. the physical layer signaling system according to claim 12 based on wireless digital multimedia broadcast, it is characterised in that:
When the loop body of transmission channel that logically frame includes circulation 0 and is being used to indicate the quantity of the transmission channel that logical frame includes
Signaling domain signaling domain value -1 in when, the logical frame dynamic signaling includes: the letter for being used to indicate the index of transmission channel
Enable domain, the signaling domain for the quantity for being used to indicate the sub- convolutional deinterleaver that transmission channel uses in current logic frame, according to interframe
The loop body of delay channel cycle in convolutional interleave；Exist when according to the loop body of the delay channel cycle in interframe convolutional interleave
0 and be used to indicate in interframe convolutional interleave delay channel quantity signaling domain signaling domain value -1 in when, the logic
The data structure of frame dynamic signaling further include: be used to indicate to map to after the delay channel delay of the loop body quantity and work as
The signaling domain of the quantity for the Bit Interleaved Coded Modulation block that the interlacing frames of preceding logical frame are included；It is each when being used to indicate in logical frame
Kind of optional logical frame signaling domain whether obtain using the signaling domain value in signaling domain be five particular values when, the logical frame is dynamic
The data structure of state signaling further include: the 7th reserved signaling domain.
14. the physical layer signaling system according to claim 1 based on wireless digital multimedia broadcast, it is characterised in that:
First with the data structure of signaling unit include: be used to indicate from current logic superframe to logical frame configuration signal value change
The signaling domain of logic superframe quantity between the logic superframe of place is used to indicate in next logical frame whether transmit urgent broadcast
The signaling domain of message is used to indicate the physical frame that next logical frame frame head is mapped to and matches in the physical frame of current logic channel
It sets the signaling domain of the position in period pattern, be used to indicate first data cell of next logical frame and it maps to physical frame
The signaling domain of the data cell quantity at interior the last one data cell interval of physical frame signaling unit is used to indicate next logic
The signaling domain of the initial address of first 2 service transmission channel of type in frame is used to indicate the same biography in next logical frame
The signaling domain of the data cell quantity of two time sub-pieces starting position intervals of defeated channel is used to indicate current transmission channel and exists
The signaling domain of initial address in next logical frame is used to indicate interlacing frames of the current transmission channel in next logical frame
In entrained Bit Interleaved Coded Modulation number of blocks signaling domain, be used to indicate pass associated with currently resident transmission channel
Join the signaling domain of the quantity of transmission channel, according to the circulation for being associated with transmission channel and recycling associated with current resident transmission channel
Body, be used to indicate current transmission channel carrying first with other transmission channels quantity indicated by signaling unit signaling
Domain and the first loop body recycled with other transmission channels indicated by signaling unit carried according to current transmission channel；
When the loop body according to association transmission channel circulation associated with current resident transmission channel 0 and described be used to indicate and work as
When in the signaling domain value -1 in the signaling domain of the quantity of the preceding associated association transmission channel of resident transmission channel, first companion
With the data structure of signaling unit further include: be used to indicate the signaling domain of the index of association transmission channel, be used to indicate and be associated with
The signaling domain of initial address of the corresponding transmission channel in signaling domain of the index of transmission channel in next logical frame is used to indicate
It is entrained in the interlacing frames in next logical frame with the corresponding transmission channel in the association signaling domain of index of transmission channel
The signaling domain of Bit Interleaved Coded Modulation number of blocks, the 9th reserved signaling domain.
15. the physical layer signaling system according to claim 14 based on wireless digital multimedia broadcast, it is characterised in that:
When the loop body that first carried according to current transmission channel recycles with other transmission channels indicated by signaling unit is in 0 He
It is described be used to indicate current transmission channel carrying first with other transmission channels quantity indicated by signaling unit signaling
When in the signaling domain value -1 in domain, described first with signaling unit data structure further include: be used to indicate other transmission letter
The signaling domain of the index in road is used to indicate transmission channel corresponding with the signaling domain of the index of other transmission channels in next logic
The signaling domain of initial address in frame is used to indicate transmission channel corresponding with the signaling domain of the index of other transmission channels under
The signaling domain of entrained Bit Interleaved Coded Modulation number of blocks and the tenth reserved signaling in interlacing frames in one logical frame
Domain；Described first with the data structure of signaling unit further includes the 11st reserved signaling domain.
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| CN110166849B (en) * | 2019-05-22 | 2021-06-04 | 中国科学院上海高等研究院 | Dynamic frame structure transmission device, method, terminal, medium, and system |
| CN111225448B (en) * | 2019-12-24 | 2022-12-30 | 京信网络系统股份有限公司 | Parameter processing method and device, computer equipment and storage medium |
| US20240090077A1 (en) * | 2021-01-07 | 2024-03-14 | Beijing Xiaomi Mobile Software Co., Ltd. | Discontinuous reception method and apparatus |
| CN113965282B (en) * | 2021-10-09 | 2023-05-12 | 福建新大陆通信科技股份有限公司 | Emergency broadcasting method for multimedia IP outdoor terminal |
| CN116094637B (en) * | 2023-04-13 | 2023-06-23 | 成都德芯数字科技股份有限公司 | Emergency broadcast command signal identification method and system for medium wave amplitude modulation broadcast |
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