CN111600680A - Method and device for sending time division multiple access TDMA burst data and electronic equipment - Google Patents
Method and device for sending time division multiple access TDMA burst data and electronic equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses a method and a device for sending time division multiple access TDMA burst data, electronic equipment and a computer readable storage medium. The method for sending the time division multiple access TDMA burst data comprises the steps of carrying out link classification on various types of burst data in a TDMA communication system, carrying out data blocking and coding on the burst data in each link, packaging the coded block data, sending the packaged data to a data cache pool corresponding to each link, carrying out real-time maintenance on the data cache pool and a time slot in each link, finishing the organization of the time slot data in a frame period by taking the frame period as a unit, and modulating the time slot data in the frame period according to the time slot sequence and the modulation mode of the link to which each time slot belongs to so as to finish the sending of the frame data. Therefore, the project realization problem of sending the burst data in sequence in the TDMA communication system is solved, and the ordered sending of the burst data in the TDMA communication system is realized.
Description
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting time division multiple access (tdma) burst data, an electronic device, and a computer-readable storage medium.
Background
The TDMA communication system is widely applied in the communication field due to the characteristics of flexible networking, multi-service support and the like. A TDMA communication system is a communication technique for implementing a shared transmission medium or network by dividing time into periodic frames on a broadband wireless carrier, each frame being subdivided into a plurality of time slots (which do not overlap with each other regardless of frame or time slot), each time slot being a communication channel allocated to a user. The system is mainly characterized in that each communication terminal can only transmit signals (burst data) to the central station according to the appointed time slot in each frame according to a certain time slot allocation principle, the signals are strictly and sequentially arranged in time and are not overlapped, and the central station can receive the signals of each communication terminal in each time slot without mutual interference under the condition of satisfying timing and synchronization.
TDMA distinguishes channels of different users in different time slots. On one frequency channel, it can be divided into a plurality of time slots. One slot is also called a physical channel. Each physical channel is available for traffic transmission of only one user at a time. The signals transmitted by the central station to the communication terminals are arranged in sequence and transmitted in the preset time slot, and the signals transmitted to the communication terminals can be distinguished from the combined signals as long as the communication terminals receive the signals in the appointed time slot. However, how to sequentially transmit various types of burst data in the TDMA communication system is an engineering implementation problem.
Disclosure of Invention
In view of the above, the present application is proposed to provide a transmission method, apparatus, electronic device and computer readable storage medium for time division multiple access TDMA burst data that overcomes or at least partially solves the above mentioned problems.
According to an aspect of the present application, there is provided a method for transmitting time division multiple access TDMA burst data, the method comprising:
carrying out link classification on various types of burst data in a TDMA communication system according to a sending node and a receiving node of the data;
carrying out data blocking on the classified burst data in each link according to the data unit size specified by the communication parameters of the link to which the burst data belongs, and carrying out channel coding on the block data according to the channel coding parameters specified by the communication parameters of the link to which the burst data belongs;
grouping the block data after channel coding of each link, and sending the grouped data to a data cache pool corresponding to each link;
maintaining the data cache pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link;
sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period;
and modulating the data of each time slot in the frame period according to the sequence of the time slots and a modulation mode specified by the communication parameters of the link to which each time slot belongs to complete the transmission of the data of the frame.
According to another aspect of the present application, there is provided a transmission apparatus for time division multiple access TDMA burst data, the apparatus comprising:
the link classification unit is used for carrying out link classification on various types of burst data in the TDMA communication system according to a sending node and a receiving node of the data;
a data blocking and coding unit, configured to block the classified burst data in each link according to a data unit size specified by the communication parameter of the link to which the burst data belongs, and perform channel coding on the block data according to channel coding parameters specified by the communication parameter of the link to which the burst data belongs;
the data packet packing unit is used for packing the block data subjected to channel coding of each link and sending the packed data to the data cache pool corresponding to each link;
the dynamic maintenance unit is used for maintaining the data cache pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link;
the time slot data organization unit is used for sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period;
and the frame data sending unit is used for modulating the time slot data in the frame period according to the time slot sequence and the modulation mode specified by the communication parameters of the link to which each time slot belongs, so as to complete the sending of the frame data.
In accordance with yet another aspect of the present application, there is provided an electronic device including: a processor; and a memory arranged to store computer executable instructions that, when executed, cause the processor to perform a method as any one of the above.
According to a further aspect of the application, there is provided a computer readable storage medium, wherein the computer readable storage medium stores one or more programs which, when executed by a processor, implement a method as in any above.
According to the technical scheme, the transmission of the TDMA burst data is divided into two processes of data packaging and data transmission, and the data packaging and data transmission processes are sequentially connected by establishing the data cache pool corresponding to each link, wherein the links of various types of burst data in the TDMA communication system are classified, the classified burst data in each link are subjected to data blocking, channel coding is performed on the block data, the coded block data are packaged, and the data packaging process is completed. And then sending each group of packet data to a data cache pool corresponding to each link. And sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period, and modulating the time slot data in the frame period according to the time slot sequence and the modulation mode specified by the communication parameters of the link to which each time slot belongs to finish the sending of the frame data. The TDMA burst data sending scheme provided by the application has the advantages that the whole data processing process is clear, and the implementation is easy. And moreover, the data cache pool and the time slot are maintained in real time, when a certain link or the time slot in the link is changed, the orderly transmission of the burst data in the TDMA communication system can be ensured, and the stability of the system is ensured.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a flow diagram of a method of transmitting TDMA bursts according to an embodiment of the present application;
fig. 2 shows another flow diagram of a method of transmitting TDMA bursts according to an embodiment of the present application;
fig. 3 is a schematic flow chart illustrating a method for transmitting TDMA bursts according to an embodiment of the present application;
FIG. 4 shows a flow diagram of a data chunking method according to one embodiment of the present application;
FIG. 5 shows a schematic diagram of a data package approach according to one embodiment of the present application;
FIG. 6 illustrates a flow diagram of a buffer pool maintenance method according to one embodiment of the present application;
fig. 7 is a schematic diagram illustrating a structure of a TDMA burst data transmission apparatus according to an embodiment of the present application;
FIG. 8 shows a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 9 shows a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
For the sake of understanding, some technical terms appearing in the embodiments of the present application are briefly explained here.
Burst data refers to all data carried by signals that each communication node needs to transmit in bursts within a specified time slot.
Idle data refers to default data for transmission within the communication system when there are no bursts of data to be transmitted.
A link, refers to a wireless channel connecting a pair of a transmitting node and a receiving node.
A repeating cycle of time slots, referred to as TDMA, is called a frame, and each frame is divided into time segments called time slots.
The time slot offset refers to the time offset of a plurality of burst time slots in a frame period relative to the starting point of the frame.
The data block is a data packet obtained by dividing data to be transmitted according to a specified data unit size.
Fig. 1 is a flowchart illustrating a method for transmitting TDMA burst data according to an embodiment of the present application. As shown in fig. 1, the method for transmitting TDMA burst data includes:
step S110: and carrying out link classification on various types of burst data in the TDMA communication system according to the sending node and the receiving node of the data.
In the embodiment of the present application, various types of burst data, such as sound, picture, text, and other types of burst data, are present in the TDMA communication system, and a sending node and a receiving node of each burst data may be the same or different, or the sending node may be the same but the receiving node is different, or the sending node may be different but the receiving node is the same. The same situation exists for the transmitting node and the receiving node of each link. And comparing the sending node and the receiving node of the data with the sending node and the receiving node of the link, classifying the burst data and the link with the same sending node and receiving node into a class, and determining the sending link corresponding to each burst data. For example, the communication system includes 4 pieces of burst data M1, M2, M3, M4, and has two links 1 and 2, where the transmitting node and the receiving node of the burst data M1 and M3 are the same, and the transmitting node and the receiving node connected to the link 1 are the same, and the transmitting node and the receiving node of the burst data M2 and M4 are the same, and the transmitting node and the receiving node connected to the link 2 are the same. Then bursts M1 and M3 are in one class and sent over link 1 and bursts M2 and M4 are in one class and sent over link 2.
Step S120: and performing data partitioning on the classified burst data in each link according to the data unit size specified by the communication parameters of the link, and performing channel coding on the partitioned data according to the channel coding parameters specified by the communication parameters of the link.
In this embodiment of the present application, communication parameters of different links may be the same or different, where the communication parameters of the links include a data unit size, a channel coding parameter, a modulation method, and the like. And partitioning the classified burst data into a plurality of data blocks with specific sizes according to the data unit size specified in the communication parameters of the link to which the burst data belongs, and performing channel coding on each data block obtained after partitioning according to the channel coding parameters specified in the communication parameters of the link to which the burst data belongs.
Step S130: and packaging the block data subjected to channel coding of each link, and sending the packaged data to a data cache pool corresponding to each link.
In the embodiment of the application, a data cache pool corresponding to each link is established, according to the link condition, all block data after the link number, the modulation mode and the channel coding of each link are sequentially packed according to a specified format, and the packed data is sent to the data cache pool corresponding to each link.
For each link, when the data packed in the respective link is sent to the data buffer pool corresponding to each link, the links are sequentially sent in sequence, and the packed data in one link is sent each time.
Step S140: and maintaining the data buffer pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link.
In the embodiment of the present application, the links and the time slots in the links in the communication system are not fixed, but dynamically change. When the link is changed, the data cache pool in the link needs to be correspondingly maintained in real time; when the time slot in the link changes, the time slot in the link needs to be correspondingly maintained in real time. In particular, the amount of the solvent to be used,
monitoring signaling of the TDMA communication system, and if a new link appears, newly building a corresponding link cache pool; if the link is released, releasing the corresponding link buffer pool and all time slots of the link; if a new time slot appears in a certain link, increasing the time slot offset record in the link frame period; if a time slot is released in a certain link, the corresponding time slot offset record in the frame period of the link is released.
Step S150: and sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period.
In the embodiment of the present application, the TDMA communication system divides time into periodic frames, one repetition period is called a frame, each frame is divided into a plurality of time slots, and data in each link needs to be transmitted in the corresponding time slot. The frame period is a repeating period, i.e. a frame. And taking the frame period as a unit, acquiring block data according to the size of a time slot unit in a data cache pool corresponding to each link according to all available time slots currently recorded in the frame period and links corresponding to each time slot, and filling insufficient parts into idle data blocks, so that the data in the data cache pools of each link are sequentially put into the available time slots of each link to finish the organization of the time slot data in the frame period.
Step S160: and modulating the data of each time slot in the frame period according to the sequence of the time slots and a modulation mode specified by the communication parameters of the link to which each time slot belongs to complete the transmission of the data of the frame.
In the embodiment of the present application, a modulation mode is specified in the communication parameters of each link, and the sequence of the time slots is determined according to the time slot offset position specified by the frame period. And according to the sequence of the time slots, carrying out corresponding modulation according to the modulation mode specified by the communication parameters of the link to which each time slot belongs, sequentially modulating the time slot data in the organized frame period according to the modulation mode specified by the link to which each time slot belongs, then sequentially transmitting the time slot data in sequence, and transmitting the modulated data in a wireless channel. At this point, the transmission of the data of the frame is completed.
As shown in fig. 1, in the TDMA burst data transmission method according to the embodiment of the present invention, after link classification is performed on various types of burst data in a TDMA communication system, data blocking and encoding are performed on the burst data in each link, the encoded block data is packed and then transmitted to a data cache pool corresponding to each link, and the data cache pool and a time slot in each link are maintained in real time according to a link change condition and a time slot change condition in each link; sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period; and modulating the data of each time slot in the frame period according to the sequence of the time slots and the modulation mode of the link to which each time slot belongs to complete the transmission of the data of the frame. Therefore, the project realization problem of sending the burst data in sequence in the TDMA communication system is solved, and the ordered sending of the burst data in the TDMA communication system is realized. In addition, the technical scheme of the application has the characteristics of clear data processing process, reliable method, strong realizability and the like.
Fig. 2 is a schematic flow chart of another method for transmitting TDMA burst data according to an embodiment of the present application. Fig. 3 is a schematic flow chart of a method for transmitting TDMA burst data according to an embodiment of the present application. FIG. 4 shows a flow diagram of a data chunking method according to one embodiment of the present application. FIG. 5 shows a data packet schema according to an embodiment of the present application. Fig. 6 shows a flow chart of a buffer pool maintenance method according to an embodiment of the present application. The transmission method of TDMA bursts according to the embodiment of the present application is described in detail below with reference to fig. 2 to 6.
As shown in fig. 2, the TDMA burst data transmission method includes a data packet packing section and a data transmission section. Wherein, the data package part comprises the steps of link classification, data blocking and data package according to the link in turn; the data transmitting part comprises the processing steps of maintaining a data buffer pool, organizing time slot data in a frame period and transmitting link data according to the time slot sequence.
The respective processing steps are described in detail below.
And (5) link classification step. And carrying out link classification on various types of burst data according to the sending node and the receiving node of the data.
As shown in fig. 3, the TDMA communication system includes k links, link 1, link 2 to link k, and the transmitting node and the receiving node of each link are different. Each type of burst data to be transmitted has its own transmitting node and receiving node, and the transmitting node and the receiving node between each type of data may be the same or different. Comparing the sending node and the receiving node of various types of burst data with the sending node and the receiving node of the link, classifying the burst data and the link with the same sending node and receiving node into one type, and sending the burst data through the link.
In this embodiment of the present application, communication parameters of different links may be the same or different, where the communication parameters of the links include a data unit size, a channel coding parameter, a modulation method, and the like.
And data blocking. And performing data partitioning on the classified burst data in each link according to the data unit size specified by the communication parameters of the link, and performing channel coding on the partitioned data according to the channel coding parameters specified by the communication parameters of the link.
As shown in fig. 4, the data partitioning in the embodiment of the present application includes:
for each link, if no burst data exists, filling idle data in the whole block according to the size of a data unit to obtain block data; if the burst data of the link is sufficient, sequentially taking out the data according to the size of the data unit to perform data blocking to obtain blocked data; and if the data is not fetched in a whole block, filling idle data in the part with data shortage to obtain block data.
And after the burst data in each link are blocked, performing channel coding on all the blocked data in each link according to the channel coding parameters specified by the communication parameters of the link.
For example, in the embodiment of the present application, if the link 1 in fig. 3 has no burst data, the idle data with the corresponding size is supplemented according to the size of the data unit specified in the link communication parameter, so as to obtain the block data. After the burst data of the link 2 sequentially takes out a plurality of data blocks according to the size of the data unit, the remaining data can not meet the size of the data unit specified in the communication parameter of the link, and the vacant part is filled with idle data to enable the vacant part to meet the size of the specified data unit, so that block data is obtained. And after the burst data in the link 2 is blocked, performing channel coding on all the obtained blocked data according to the channel coding parameters specified in the communication parameters of the link 2. And data is packed according to the link. And packaging the block data subjected to channel coding of each link, and sending the packaged data to a data cache pool corresponding to each link.
In the embodiment of the application, according to the link condition, the link number, the modulation mode and all the block data after channel coding of each link are sequentially packed according to a specified format, and the packed data is sent to the data cache pool corresponding to each link.
As shown in fig. 3, a data cache pool corresponding to each link is established, and the packaged data is sent to the data cache pool corresponding to each link. As shown in fig. 5, according to the link condition, the link number, the modulation scheme of each link, and all the block data subjected to channel coding by the above method are sequentially packed in a predetermined format. Wherein the block data can change with the change of the link or the time slot in the link.
And maintaining a data cache pool. And maintaining the data buffer pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link.
As shown in fig. 6, the dynamic maintenance of the data cache pool and the time slot in the embodiment of the present application includes:
monitoring signaling of the TDMA communication system, and if a new link appears, newly building a corresponding link cache pool; if the link is released, releasing the corresponding link buffer pool and all time slots of the link; if a new time slot appears in a certain link, increasing the time slot offset record in the link frame period; if a time slot is released in a certain link, the corresponding time slot offset record in the frame period of the link is released.
And organizing time slot data in a frame period. And sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period.
In the embodiment of the present application, each link sequentially puts the data in the respective data buffer pool into the available time slot of each link. And acquiring block data according to the size of a slot unit in a data cache pool corresponding to each link according to all available slots currently recorded in a frame period and links corresponding to each slot, wherein the insufficient part is filled in an idle data block. As shown in fig. 3, for example, there are currently 9 available slots recorded in a frame period, and slot data in the frame period needs to be organized. Wherein, the time slots t1, t3 and t7 are available time slots of link 1, the time slots t4, t5 and t9 are available time slots of link 2, the time slots t2 and t6 are available time slots of link k-1, and the time slot t8 is an available time slot of link k. Firstly, data in a data buffer pool of a link 1 is put into an available time slot, specifically, the available time slots t1, t3 and t7 of the link 1 acquire block data in the data buffer pool corresponding to the link 1 according to the size of each time slot unit, and if the block data acquired by a certain time slot cannot meet the size of the time slot unit, insufficient parts are filled into idle data blocks. And sequentially putting the data in the respective data buffer pools into the corresponding available time slots for the link 2, the link k-1 and the link k according to the same method. The user can set the sequence between the links.
And transmitting the link data according to the time slot sequence. And modulating the data of each time slot in the frame period according to the sequence of the time slots and a modulation mode specified by the communication parameters of the link to which each time slot belongs to complete the transmission of the data of the frame.
In the embodiment of the application, the sequence of the time slots is determined according to the time slot offset position specified by the frame period; and according to the sequence of the time slots, correspondingly modulating the data of each time slot in sequence according to the modulation mode specified by the communication parameters of the link to which each time slot belongs, and transmitting the modulated data in a wireless channel to finish the transmission of the data of the frame.
As shown in fig. 3, all available timeslots in a frame period are defined with corresponding timeslot offset positions, for example, the timeslot offset position of timeslot t1 is 0.5 seconds, the timeslot offset position of timeslot t2 is 1 second, and the timeslot offset position of timeslot t3 is 1.5 seconds, so that the timeslot order is that timeslot t1 precedes timeslot t2, and timeslot t2 precedes timeslot t 3. And according to the sequence of the time slots, sequentially and correspondingly modulating the data of each time slot according to the modulation mode specified by the communication parameters of the link to which each time slot belongs, and transmitting the modulated data in a wireless channel, so that the data of the frame is transmitted.
As can be seen from the above, in the embodiment of the present application, link classification, data blocking, data encoding, and data packaging are performed on burst data, and the organization of time slot data in a frame period is completed through a data buffer pool, so as to complete transmission of the frame data. And the signaling indication of the TDMA communication system is monitored, the data cache pool and the time slot are maintained in real time, and when the time slot in a certain link or a link changes, the orderly transmission of the burst data in the TDMA communication system can be ensured.
Fig. 7 is a diagram illustrating a structure of a transmitting apparatus for TDMA burst data according to an embodiment of the present application. As shown in fig. 7, the TDMA burst data transmission apparatus 700 includes:
the link classification unit 710 is configured to perform link classification on various types of burst data in the TDMA communication system according to a sending node and a receiving node of the data.
And a data blocking and encoding unit 720 for performing data blocking on the classified burst data in each link according to the data unit size specified by the communication parameter of the link to which the burst data belongs, and performing channel encoding on the data blocks according to the channel encoding parameter specified by the communication parameter of the link to which the burst data belongs.
And a data packing unit 730, configured to pack the block data after channel coding of each link, and send the packed data to a data cache pool corresponding to each link.
And a dynamic maintenance unit 740, configured to perform real-time maintenance on the data buffer pool and the time slot in each link according to the link change condition and the time slot change condition in the link.
And a time slot data organization unit 750, configured to sequentially place the data in the data buffer pool corresponding to each link into an available time slot of each link in sequence by taking the frame period as a unit, so as to complete organization of the time slot data in the frame period.
And a frame data sending unit 760, configured to modulate, according to the sequence of the time slots, the data of each time slot in the frame period according to the modulation mode specified by the communication parameter of the link to which each time slot belongs, so as to complete sending of the data of the frame.
In an embodiment of the present application, the communication parameters of different links in the apparatus 700 for transmitting TDMA bursts may be the same or different, where the communication parameters of the links include data unit size, channel coding parameters, and modulation scheme.
In an embodiment of the present application, the data blocking and encoding unit 720 is specifically configured to, for each link, if there is no burst data, perform idle data filling on the entire block according to the size of the data unit to obtain block data; if the burst data is sufficient, sequentially taking out the data according to the size of the data unit to perform data blocking to obtain blocked data; and if the data is not fetched in a whole block, filling idle data in the part with data shortage to obtain block data.
In an embodiment of the present application, the data packing unit 730 is specifically configured to sequentially pack, according to link conditions, all block data after channel coding, a link number of each link, a modulation mode of each link according to a specified format, and send the packed data to a data buffer pool corresponding to each link.
In an embodiment of the present application, the dynamic maintenance unit 740 is specifically configured to monitor signaling of the TDMA communication system, and if a new link occurs, a corresponding link cache pool is newly established; if the link is released, releasing the corresponding link buffer pool and all time slots of the link; if a new time slot appears in a certain link, increasing the time slot offset record in the link frame period; if time slot release exists in a certain link, releasing corresponding time slot offset records in a link frame period; the time slot offset refers to the time offset of a plurality of burst time slots in a frame period relative to the frame starting point.
In an embodiment of the present application, the time slot data organizing unit 750 is specifically configured to obtain block data according to the size of a time slot unit in a data buffer pool corresponding to each link according to a link corresponding to each time slot for all available time slots currently recorded in a frame period, and fill a part of the data in an idle data block.
In an embodiment of the present application, the frame data sending unit 760 is specifically configured to determine a sequence of time slots according to a time slot offset position specified by a frame period; and according to the sequence of the time slots, sequentially and correspondingly modulating the data of each time slot according to the modulation mode specified by the communication parameters of the link to which each time slot belongs, and sequentially transmitting the modulated data in a wireless channel to finish the transmission of the data of the frame.
It should be noted that, for the specific implementation of each apparatus embodiment, reference may be made to the specific implementation of the corresponding method embodiment, which is not described herein again.
It should also be noted that:
the algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. In addition, this application is not directed to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the present application as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the present application.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed application requires more features than are expressly recited in each claim. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments, and any of the claimed embodiments can be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a TDMA burst data transmission apparatus according to embodiments of the present application. The present application may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
For example, fig. 8 shows a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 800 comprises a processor 810 and a memory 820 arranged to store computer executable instructions (computer readable program code). The memory 820 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. The memory 820 has a storage space 830 storing computer readable program code 831 for performing any of the method steps described above. For example, the storage space 830 for storing the computer-readable program code may include respective computer-readable program codes 831 for respectively implementing various steps in the above methods. The computer readable program code 831 may be read from or written to one or more computer program products. These computer program products comprise a program code carrier such as a hard disk, a Compact Disc (CD), a memory card or a floppy disk. Such a computer program product is typically a computer readable storage medium such as described in fig. 9.
FIG. 9 shows a schematic diagram of a computer-readable storage medium according to an embodiment of the present application. The computer readable storage medium 900 stores computer readable program code 831 for executing the steps of the method according to the present application, which is readable by a processor 810 of the electronic device 800, and when the computer readable program code 831 is executed by the electronic device 800, causes the electronic device 800 to perform the steps of the method described above, and in particular, the computer readable program code 831 stored by the computer readable storage medium may perform the method shown in any of the embodiments described above. The computer readable program code 831 may be compressed in a suitable form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. A method for transmitting time division multiple access TDMA bursts, the method comprising:
carrying out link classification on various types of burst data in a TDMA communication system according to a sending node and a receiving node of the data;
carrying out data blocking on the classified burst data in each link according to the data unit size specified by the communication parameters of the link to which the burst data belongs, and carrying out channel coding on the block data according to the channel coding parameters specified by the communication parameters of the link to which the burst data belongs;
grouping the block data after channel coding of each link, and sending the grouped data to a data cache pool corresponding to each link;
maintaining the data cache pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link;
sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period;
and modulating the data of each time slot in the frame period according to the sequence of the time slots and a modulation mode specified by the communication parameters of the link to which each time slot belongs to complete the transmission of the data of the frame.
2. The method of claim 1, wherein the communication parameters of different links may be the same or different, and wherein the communication parameters of the links include data unit size, channel coding parameters, and modulation scheme.
3. The method as claimed in claim 1, wherein said data partitioning the classified burst data in each link according to the data unit size specified by the communication parameter of the link comprises:
for each link, if the burst data does not exist, filling idle data in the whole block according to the size of a data unit to obtain block data; if the burst data are sufficient, sequentially taking out the data according to the size of the data unit to perform data blocking to obtain blocked data; and if the data is not fetched in a whole block, filling idle data in the part with data shortage to obtain block data.
4. The method of claim 1, wherein the step of packing the channel coded block data of each link and sending the packed data to the data buffer pool corresponding to each link comprises:
establishing a data cache pool corresponding to each link;
according to the link condition, sequentially packaging all the block data after the link number, the modulation mode and the channel coding of each link according to a specified format, and sending the packaged data to a data cache pool corresponding to each link.
5. The method of claim 1, wherein the real-time maintenance of the data buffer pool and the time slot in each link according to the link change condition and the time slot change condition in the link comprises:
monitoring signaling of the TDMA communication system, and if a new link appears, newly building a corresponding link cache pool; if the link is released, releasing the corresponding link buffer pool and all time slots of the link; if a new time slot appears in a certain link, increasing the time slot offset record in the link frame period; if time slot release exists in a certain link, releasing corresponding time slot offset records in a link frame period;
the slot offset refers to the time offset of a plurality of burst slots in a frame period relative to the starting point of the frame.
6. The method of claim 1, wherein the sequentially placing the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit, and the finishing of organizing the time slot data in the frame period comprises:
and acquiring block data according to the size of a slot unit in a data cache pool corresponding to each link according to all available slots currently recorded in a frame period and links corresponding to each slot, wherein the insufficient part is filled in an idle data block.
7. The method of claim 1, wherein the performing modulation on the data of each time slot in the frame period according to the sequence of the time slots and the modulation mode specified by the communication parameter of the link to which each time slot belongs to complete the transmission of the data of the frame comprises:
determining the sequence of the time slots according to the time slot offset position specified by the frame period;
and according to the sequence of the time slots, sequentially and correspondingly modulating the data of each time slot according to the modulation mode specified by the communication parameters of the link to which each time slot belongs, and sequentially transmitting the modulated data in a wireless channel to finish the transmission of the frame of data.
8. An apparatus for transmitting Time Division Multiple Access (TDMA) bursts, the apparatus comprising:
the link classification unit is used for carrying out link classification on various types of burst data in the TDMA communication system according to a sending node and a receiving node of the data;
a data blocking and coding unit, configured to block the classified burst data in each link according to a data unit size specified by the communication parameter of the link to which the burst data belongs, and perform channel coding on the block data according to channel coding parameters specified by the communication parameter of the link to which the burst data belongs;
the data packet packing unit is used for packing the block data subjected to channel coding of each link and sending the packed data to the data cache pool corresponding to each link;
the dynamic maintenance unit is used for maintaining the data cache pool and the time slot in each link in real time according to the link change condition and the time slot change condition in the link;
the time slot data organization unit is used for sequentially putting the data in the data buffer pool corresponding to each link into the available time slot of each link in sequence by taking the frame period as a unit to finish the organization of the time slot data in the frame period;
and the frame data sending unit is used for modulating the time slot data in the frame period according to the time slot sequence and the modulation mode specified by the communication parameters of the link to which each time slot belongs, so as to complete the sending of the frame data.
9. An electronic device, comprising: a processor; and a memory arranged to store computer-executable instructions that, when executed, cause the processor to perform the method of any one of claims 1-7.
10. A computer readable storage medium, characterized in that the computer readable storage medium stores one or more programs which, when executed by a processor, implement the method of any of claims 1-7.
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