WO2017008765A1 - 发送终端、接收台及应用数据的发送和接收方法 - Google Patents

发送终端、接收台及应用数据的发送和接收方法 Download PDF

Info

Publication number
WO2017008765A1
WO2017008765A1 PCT/CN2016/090218 CN2016090218W WO2017008765A1 WO 2017008765 A1 WO2017008765 A1 WO 2017008765A1 CN 2016090218 W CN2016090218 W CN 2016090218W WO 2017008765 A1 WO2017008765 A1 WO 2017008765A1
Authority
WO
WIPO (PCT)
Prior art keywords
cell
data
application data
variable length
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/090218
Other languages
English (en)
French (fr)
Inventor
吴国稳
张颖哲
谢汉雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hytera Communications Corp Ltd
Original Assignee
Hytera Communications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hytera Communications Corp Ltd filed Critical Hytera Communications Corp Ltd
Publication of WO2017008765A1 publication Critical patent/WO2017008765A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to the field of digital wireless communications, and in particular, to a transmitting terminal, a receiving station, and a method for transmitting and receiving application data.
  • DMR Digital Mobile Radio
  • ETSI European Telecommunications Standards Institute
  • the standard only defines short data services and location information formats based on the UDT (UDP-based Data Transfer Protocol) mechanism to support the transmission of application data, such as transmitting short data, extended address numbers, and users. Supplementary information and other data.
  • UDT UDT-based Data Transfer Protocol
  • Supplementary information and other data such as transmitting short data, extended address numbers, and users.
  • Supplementary information and other data such as transmitting short data, extended address numbers, and users.
  • Supplementary information and other data such as transmitting short data, extended address numbers, and users.
  • the fixed-width signaling frame defined in the DMR standard cannot be used to transmit application data.
  • the main problem of the UDT mechanism is that the data format is fixed, and can only be limited to a limited type of application data defined in the UDT mechanism, such as transmitting short data, extended address numbers, and user supplementary information, and cannot transmit other types of application data, thereby Technical problems such as low communication efficiency and waste of resources.
  • the technical problem mainly solved by the present invention is to provide a transmitting terminal, a receiving station and application data.
  • the sending and receiving method enables the application data field of the fixed-width signaling frame to carry customized different types of application data, thereby optimizing the transmission format of the application data to save resources, and improving communication efficiency and communication capacity.
  • a technical solution adopted by the present invention is to provide a method for transmitting application data, including: a sending terminal writes a preset string in a data type field in a fixed-width signaling frame, and a preset word
  • the string is used to define the type of application data to be transmitted, and one or more variable length cells are written in the application data field in the fixed width signaling frame, and the variable length cell includes a cell header and a cell body, and the variable length
  • the cell carries the content of the application data, the cell header includes a cell header identifier, and the cell header identifier indicates the type of the variable length cell, thereby obtaining the extended fixed-width signaling frame; the transmitting terminal will expand the fixed-width signal
  • the frame is sent to the receiving station, so that the receiving station can know the type of the application data by reading the data type field, and learn the content of the application data by reading the application data field.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the type of the variable length cell when the type of the variable length cell is the low bit subframe of the location information, the content of the application data is the low bit data of the location information, and the transmitting terminal writes the low bit data of the location information into the cell body as the content of the variable length cell; If the type of the variable length cell is the sub-lower sub-frame of the location information, the content of the application data is the second-order data of the location information, and the transmitting terminal writes the second-order data of the location information into the cell body to serve as the variable-length cell. Content; and/or
  • the transmitting terminal writes the second-order data of the location information into the cell body as the content of the variable-length cell; and / or
  • the transmitting terminal writes the location information high-order data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the speed data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the altitude data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the terminal identification code data into the cell body to serve as the content of the variable length cell.
  • the present invention further provides a method for receiving application data, comprising: receiving, by a receiving station, a fixed-width signaling frame sent by a transmitting terminal; wherein a data type field of the fixed-width signaling frame includes a preset string, and the preset string is used for Defining the type of the applied application data, the application data field of the fixed-width signaling frame includes one or more variable-length cells carrying the content of the application data, and the variable-length cell includes a cell header and a cell body, and the cell The header includes a cell header identifier, and the cell header identifier indicates the type of the variable length cell; the receiving station reads the data type field, learns the type of the application data, and reads the application data field to learn the content of the application data.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the transmitting terminal writes the low bit data of the location information into the cell body as the content of the variable length cell;
  • the type of the variable length cell is the sub-lower sub-frame of the location information
  • the content of the application data is the sub-lower bit data of the location information
  • the transmitting terminal writes the sub-lower bit data of the location information into the cell body to serve as the content of the variable length cell; and / or
  • the transmitting terminal writes the second-order data of the location information into the cell body as the content of the variable-length cell; and / or
  • the transmitting terminal writes the location information high data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the speed data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the altitude data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the terminal identification code data into the cell body to serve as the content of the variable length cell.
  • the present invention further provides a transmitting terminal, comprising: a fixed-width signaling frame processing module, configured to write a preset string in a data type field in a fixed-width signaling frame, where the preset string is used to define a desired transmission Type of application data, and one or more variable length cells are written in the application data field in the fixed width signaling frame, wherein the variable length cell includes a cell header and a cell body, and the variable length cell carries application data.
  • a transmitting terminal comprising: a fixed-width signaling frame processing module, configured to write a preset string in a data type field in a fixed-width signaling frame, where the preset string is used to define a desired transmission Type of application data, and one or more variable length cells are written in the application data field in the fixed width signaling frame, wherein the variable length cell includes a cell header and a cell body, and the variable length cell carries application data.
  • the content of the cell header includes a cell header identifier, the cell header identifier indicates the type of the variable length cell, thereby obtaining the extended fixed-width signaling frame, and the transmitting module is configured to use the extended fixed-width signaling frame Sending to the receiving station, so that the receiving station can know the type of the application data by reading the data type field, and know the content of the application data by reading the application data field.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the invention further provides a receiving station comprising:
  • a receiving module configured to receive a fixed-width signaling frame sent by the sending terminal, where the data type field of the fixed-width signaling frame includes a preset string, where the preset string is used to define a type of the applied application data, and a fixed width
  • the application data field of the signaling frame includes one or more variable length cells carrying the content of the application data, the variable length cell includes a cell header and a cell body, and the cell header includes a cell header identifier, and the cell header The identifier indicates the type of the variable length cell; the data reading module is configured to read the data type field, learn the type of the application data, and read the application data field to learn the content of the application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the present invention further provides a transmitting terminal comprising at least one processor, at least one wireless network interface, a memory, and at least one communication bus, the memory is configured to store program instructions, and the processor is configured to: execute the program instructions to set the width information Writing a preset string in the data type field in the frame, wherein the preset string is used to define the type of application data to be transmitted, and one or more writes in the application data field in the fixed-width signaling frame
  • a variable length cell wherein the variable length cell comprises a cell header and a cell body, the variable length cell carries content of the application data, the cell header includes a cell header identifier, and the cell header identifier indicates a type of variable length cell,
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the present invention further provides a receiving station comprising: at least one processor, at least one wireless network interface, a memory, and at least one communication bus, the memory for storing program instructions, a processor, And the method is configured to: execute a program instruction to receive a fixed-width signaling frame sent by the transmitting terminal; where the data type field of the fixed-width signaling frame includes a preset string, and the preset string is used to define a type of the applied application data,
  • the application data field of the fixed-width signaling frame includes one or more variable-length cells carrying the content of the application data, the variable-length cell includes a cell header and a cell body, and the cell header includes a cell header identifier, and a letter header
  • the meta header identifies the type of variable length cell; the program instruction is executed to read the data type field, the type of the application data is known, and the application data field is read to know the content of the application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe and a position of the position information.
  • the beneficial effects of the present invention are: different from the prior art embodiments, the transmitting terminal, the receiving station, and the method for transmitting and receiving application data of the present invention, the data type field and application of the fixed-width signaling frame defined in the communication standard
  • the data field is extended so that the application data field of the fixed-width signaling frame can carry different types of application data customized to optimize the transmission format of the application data to save resources, and improve communication efficiency and communication capacity.
  • FIG. 1 is a block diagram of a system connection in accordance with an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a data format of a variable length cell according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for transmitting application data according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method of receiving application data according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a device according to a first embodiment of a transmitting terminal of the present invention.
  • FIG. 6 is a schematic structural diagram of a device according to a first embodiment of the receiving station of the present invention.
  • FIG. 7 is a schematic structural diagram of a device according to a second embodiment of a transmitting terminal of the present invention.
  • Figure 8 is a block diagram showing the structure of a second embodiment of the receiving station of the present invention.
  • the embodiment of the present invention mainly describes a CSBK frame and an LC frame defined in the DMR standard as an example of a fixed-width signaling frame, but the present invention should not be limited to only defined in the DMR communication system.
  • the CSBK frame and the LC frame can also be applied to single frame data control signaling or multi-frame data control signaling in a communication system in which other fixed width signaling frames are defined.
  • FIG. 1 is a block diagram of a system connection according to an embodiment of the present invention.
  • a wireless signaling connection is established between a transmitting terminal 10 and a receiving station 20 through a DMR digital trunking communication standard.
  • the terminal 10 and the receiving station 20 are both disposed in a wireless communication system.
  • the receiving station 20 disclosed in the embodiment of the present invention may specifically be a base station, a handheld terminal, or a service station.
  • a CSBK (Control Signaling Block) frame may be transmitted between the transmitting terminal 10 and the receiving station 20, where the format of the CSBK frame is as follows:
  • an LC (Link Control, Embedded Control Signaling) frame may also be transmitted between the transmitting terminal 10 and the receiving station 20, where the format of the LC frame is as follows:
  • the LB field, the PF field, the CSBKO field, and the FID field of the CSBK frame are all consistent with the definition of the DMR standard, and no modification is made in the embodiment of the present invention.
  • the LB field, the PF field, the LCO field, and the FID field of the LC frame are all consistent with the definition of the DMR standard, and no modification is made in the embodiment of the present invention.
  • the data type field and the application data field of the CSBK frame or the LC frame are mainly extended and defined as an extended field.
  • the transmitting terminal 10 writes a predetermined string to the data.
  • Type field to select the type of application data. For example, if 0000 is input to the field to identify the application data to be transmitted in the application data field of the CSBK frame or the LC frame as the global universal positioning information application data, it is worth noting that in the embodiment of the present invention, mainly for the global The transmission method of the positioning information application data is described. However, the embodiment of the present invention can also support the transmission of environmental data, human health data, dedicated device remote control data, and other application data by loading different sizes of variable length signals in the application data field. Yuan can meet different application needs.
  • each variable length cell 300 includes a cell header 301 and a cell body 302.
  • application data to be transmitted may be set in one or more variable length cells 300.
  • the type of the variable length cell 300 is determined by the cell header identifier written in the cell header 301.
  • the application data field is populated with one or more variable length cells 300, and in the application data field, the remaining space except one or more variable length cells is all padded with zeros.
  • the transmitting terminal 10 may also fill the remaining space except one or more variable length cells by 1 at all.
  • the application data field length of the CSBK frame is 60 bits, and the application data field length of the LC frame is 52 bits. Therefore, in order to make full use of the application data field, the application data field of each frame can be filled with the required transmission.
  • the maximum number of variable length cells, and when there is remaining space, the length of the remaining space is less than the smallest of the plurality of variable length cells.
  • each variable length cell 300 can be subtyped by cell header 301 to support more application data types.
  • FIG. 3 is a flowchart of a method for transmitting application data according to an embodiment of the present invention. As shown in FIG. 3, a method for transmitting application data according to an embodiment of the present invention includes the following steps:
  • Step 101 The transmitting terminal 10 writes a preset string in a data type field in the fixed-width signaling frame, and writes one or more variable-length cells in the application data field in the fixed-width signaling frame to obtain Extended fixed-width signaling frame.
  • the preset string is used to define the type of application data to be transmitted.
  • the variable length cell includes a cell header and a cell body, and the variable length cell carries content of the application data, and the cell header includes a cell header.
  • the identifier, the cell header identifier indicates the type of the variable length cell, and the step 101 specifically defines the type of the application data to be transmitted by writing the preset string in the data type field, and writes one or more in the application data field.
  • variable length cells are used as the content of the application data, and in the application data field, the variable length cell includes a cell header and a cell body, and the type of the variable length cell is determined by the cell header identifier written in the cell header. The remaining space except one or more variable length cells is all filled with 0 or 1.
  • Step 102 The transmitting terminal 10 transmits the extended fixed-width signaling frame to the receiving station 20.
  • the receiving station 20 knows the type of the application data by reading the data type field, and knows the content of the application data by reading the application data field.
  • the receiving station 20 can further learn the type of the variable length cell by reading the cell header identifier, and learn the content of the variable length cell by reading the cell body.
  • the fixed-width signaling frame includes a CSBK frame and an LC frame. Since the digital type field of the CSBK frame or the LC frame is a 4-bit data length, the preset string may include the first string 0000, the second word. The string 0001, the third string 0002, the sixteenth string 1111, and the different preset strings are used to identify the type of application data to be transmitted in the application data field of the CSBK frame or the LC frame.
  • the application data types include: environmental data, human health data, dedicated device remote control data, global universal positioning information application data, and specific application data types can be identified by the above string.
  • the type of the application data is global universal positioning information application data. It should be noted that the foregoing correspondence is only used for example description. In practical applications, the string corresponding to the global universal positioning information application data may be agreed to be any one of the second to sixteenth strings. It is not specifically limited.
  • the global universal positioning information application data specifically includes: location information low-order data, location information second-order data, location information second-order data, location information high-level data, speed data, altitude data And/or terminal identification code data.
  • the position information low-order data, the position information lower-order data, the position information secondary high-level data, the position information high-order data, the speed data, the altitude data, and the terminal identification code data may be respectively set in different variable length signals.
  • the cell body of the element is identified by the cell header identifier of the variable length cell, and the variable length cell specifically includes: a low position sub-frame of position information, a sub-low sub-frame of position information, a sub-high sub-frame of position information, and position information. High sub-frame, speed information, altitude information, and terminal identification code. See Table 3 below for details:
  • Cell header identifier Cell length (bits, bits) Total cell length (bits, bits) Description First cell header identifier 0 (000) 12 15 Position information low subframe Second cell header identifier 1 (001) 12 15 Position information sub-lower subframe Third cell header identification 2 (010) 12 15 Position information sub-high sub-frame Fourth cell header identification 3 (011) 12 15 Location information high subframe Fifth cell header identification 4 (100) 9 12 Speed information Sixth cell header identification 5 (101) 15 18 Altitude information Seventh Cell Header Logo 6 (110) twenty four 27 Terminal identification code Eighth Cell Header Identification 7 (111) Reserved
  • the type of the variable length cell includes the lower sub-frame of the position information and the lower-order position information.
  • the cell header identifiers of the variable length cells are respectively a first cell header identifier 000, a second cell header identifier 001, a third cell header identifier 010, a fourth cell header identifier 011, and a fifth cell.
  • the receiving station 20 can learn the type of the variable length cell by reading the cell header identifier, and can learn the content of the variable length cell by reading the cell body content.
  • the length of the cell header is not limited to only three bits, and the correspondence between the cell header identifier and the variable length cell type is not limited to the above table. .
  • the length of the cell header can be set according to the number of types of variable length cells, and the type of the variable length cell can be selected according to the actual communication application scenario, which is not limited by the present invention.
  • the transmitting terminal 10 When the type of the variable length cell is the low bit subframe of the location information, the content of the application data is the low data of the location information, and the corresponding variable length cell includes a 3-bit cell header and a 12-bit cell body, and the total cell length For 15 bits, the transmitting terminal 10 writes the first cell header identifier 000 into the cell header to identify that the type of the variable length cell is the low bit subframe of the location information, and writes the low information of the location information into the cell body as The content of this variable length cell.
  • the content of the application data is the second-order data of the location information
  • the corresponding variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the cell The total length is 15 bits
  • the transmitting terminal 10 writes the second cell header identifier 001 into the cell header to identify that the type of the variable length cell is the sub-lower sub-frame of the location information, and writes the lower-order data of the location information into the cell.
  • the content in the body as the variable length cell.
  • the content of the application data is the second-order data of the location information
  • the corresponding variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the cell The total length is 15 bits
  • the transmitting terminal 10 writes the third cell header identifier 010 into the cell header to identify that the type of the variable length cell is the sub-high-order sub-frame of the location information, and writes the second-order data of the location information to the cell.
  • the content in the body as the variable length cell.
  • the type of the variable length cell is the high-order subframe of the location information
  • the content of the application data is the location information high-order data
  • the variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the total length of the cell is 15 bits.
  • the transmitting terminal 10 writes the fourth cell header identifier 011 into the cell header to identify that the type of the variable length cell is the location information high-order subframe, and writes the location information high-order data into the cell body to serve as the variable length.
  • the content of the cell is the type of the variable length cell is the high-order subframe of the location information.
  • variable length cell When the type of the variable length cell is speed information, the content of the application data is speed data, and the variable length cell includes a 3-bit cell header and a 9-bit cell body, and the total length of the cell is 12 bits, and the transmitting terminal 10
  • the fifth cell header identifier 100 is written in the cell header to identify the type of the variable length cell as velocity information, and the velocity data is written into the cell body as the content of the variable length cell.
  • the type of the variable length cell is the altitude information
  • the content of the application data is the altitude data
  • the altitude information includes a 3-bit cell header and a 15-bit cell body, and the total length of the cell is 18 bits
  • the transmitting terminal 10 Writing the sixth cell header identifier 101 into the cell header to identify the type of the variable length cell as the altitude Information, the altitude data is written into the cell body as the content of the variable length cell.
  • the transmitting terminal 10 Write the seventh cell header identifier 110 into the cell header to identify the type of the variable length cell as a terminal identifier, and write the terminal identifier data into the cell body as the content of the variable length cell.
  • the number of bits of the cell header and the cell body is not limited to the above, and the number of bits of the cell header and the cell body can be adjusted according to actual needs, depending on the compression algorithm used. To determine the number of digits.
  • variable length cells can be combined and set in the application data field of the CSBK frame or the LC frame, the application data field of the CSBK frame or the LC frame can be fully utilized to carry the customized different types of application data, thereby effectively improving The location information transmission capacity of the wireless communication system.
  • variable length cell can be uploaded to the application data field of the CSBK frame or the LC frame for uploading, so that the communication channel of different unit lengths such as the CSBK frame and the LC frame can be flexibly supported.
  • the information granulation idea is used to fill the CSBK frame and the fixed length application data field in the LC frame, so that various information combinations can be flexibly supported, and information transmission can be improved. Capacity and maximize information transfer efficiency.
  • the sending terminal 10 may select to upload a CSBK frame and an LC frame carrying different application data to the receiving station 20 according to actual needs, so as to adapt to different application scenarios, and the application data is used as global universal positioning information application data.
  • the first implementation manner is that the transmitting terminal 10 actively uploads the positioning information to the receiving station 20 through the CSBK frame.
  • the positioning information includes initial location information and subsequent location change information, and the transmitting terminal 10 first uploads the initial location information to the receiving station 20, and subsequently When the location changes, the transmitting terminal 10 uploads the updated location information to the receiving station 20.
  • the transmitting terminal 10 needs to upload two CSBK frames to the receiving station 20 first.
  • the custom field settings for the first CSBK frame are as follows:
  • Application data field of CSBK frame location information high-order subframe (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is fourth cell header identifier 011, 12-bit
  • the cell body content is the location information high-order data
  • the location information sub-high-order subframe (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the third cell header identifier) 010
  • the 12-bit cell body content is the position information sub-high-order data
  • the terminal identification code 27 bits, including the 3-bit cell header and the 24-bit cell body
  • the 3-bit cell header content is the seventh letter
  • the meta-header 110, the 24-bit cell body content is the terminal identification code data, a total of 57 bits. Since the total length of the application data field of the CSBK frame is 60 bits, the remaining 3 bits are 0 (pre-received by the transmitting terminal 10) Station 20 agreed) padding.
  • Application data field of CSBK frame low-order sub-frame of position information (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is first cell header identifier 000, 12-bit
  • the cell body content is the position information low-order data
  • the position information sub-lower sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the second cell header identifier) 001
  • 12-bit cell body content is position information sub-lower data
  • terminal identification code 27 bits, including 3-bit cell header and 24-bit cell body
  • 3-bit cell header content is the seventh letter
  • the meta-header 110, the 24-bit cell body content is the terminal identification code data, a total of 57 bits. Since the total length of the application data field of the CSBK frame is 60 bits, the remaining three bits are padded with 0s.
  • the transmitting terminal 10 may upload a CSBK frame to inform the receiving station 20 to send the latest location of the terminal 10.
  • the CSBK frame may include the following three cases:
  • the subsequent position change information may be used by the current time sending terminal 10 to obtain the position information low-order data and the position information.
  • the low-order data is used to represent the CSBK frame including the low-order sub-frame of the position information and the sub-lower sub-frame of the position information, wherein the re-uploaded position information is low.
  • the sub-lower sub-frame of the frame and position information is used to reflect the current position after the position change occurs.
  • the custom field of the CSBK frame is set as follows:
  • Application data field of CSBK frame low-order sub-frame of position information (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is first cell header identifier 000, 12-bit
  • the cell body content is the position information low-order data
  • the position information sub-lower sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the second cell header identifier) 001
  • 12-bit cell body content is position information sub-lower data
  • terminal identification code 27 bits, including 3-bit cell header and 24-bit cell body
  • 3-bit cell header content is the seventh letter
  • the meta-header 110, the 24-bit cell body content is the terminal identification code data, a total of 57 bits. Since the total length of the application data field of the CSBK frame is 60 bits, the remaining three bits are padded with 0s.
  • the subsequent CSBK frame can carry the speed information in addition to the position information change information.
  • Application data field of CSBK frame low-order sub-frame of position information (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is first cell header identifier 000, 12-bit
  • the cell body content is the location information low-order data
  • the speed information (12 bits, including the 3-bit cell header and the 9-bit cell body
  • the 3-bit cell header content is the fifth cell header identifier 100, 12 bits
  • the cell body content is the speed data
  • the terminal identification code 27 bits, including the 3-bit cell header and the 24-bit cell body
  • the 3-bit cell header content is the seventh cell header identifier 110, 24 bits
  • the content of the cell body is terminal identification code data), a total of 54 bits. Since the total length of the application data field of the CSBK frame is 60 bits, the remaining 6 bits are padded with 0s.
  • the subsequent CSBK frame may carry the altitude information information instead of the speed information in addition to the updated location information.
  • the custom field of the subsequent CSBK frame is set. Set as follows:
  • Application data field of CSBK frame low-order sub-frame of position information (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is first cell header identifier 000, 12-bit
  • the cell body content is the location information low-order data
  • the altitude information (18 bits, including the 3-bit cell header and the 15-bit cell body
  • the 3-bit cell header content is the sixth cell header identifier 101, 15
  • the bit body content of the bit is the altitude data
  • the terminal identification code 27 bits, including the 3-bit cell header and the 24-bit cell body
  • the 3-bit cell header content is the seventh cell header identifier 110
  • the 24-bit cell body content is the terminal identification code data), which is 60 bits in total. Since the application data field of the CSBK frame has a total length of 60 bits, it is not necessary to fill 0.
  • the receiving station 20 may first send a positioning information request to the transmitting terminal 10.
  • the transmitting terminal 10 may request to upload a CSBK frame to the receiving station 20 to respond to the positioning information by responding to the positioning information.
  • Application data field of CSBK frame location information high-order subframe (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is fourth cell header identifier 011, 12-bit
  • the cell body content is the location information high-order data
  • the location information sub-high-order subframe (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the third cell header identifier) 010
  • the 12-bit cell body content is the position information sub-high-order data
  • the position information low-order sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the first
  • a cell header identifies 000
  • the 12-bit cell body content is the position information low-order data
  • the position information sub-lower sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit letter)
  • the content of the meta-header is 001
  • the content of the 12-bit cell is the lower-order data of the location information, which
  • a CSBK frame may be additionally sent to update the location information. Achieve a mobile coverage of approximately 9 kilometers and use the remaining space to store altitude information.
  • Application data field of CSBK frame low-order sub-frame of position information (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is first cell header identifier 000, 12-bit
  • the cell body content is the position information low-order data
  • the position information sub-lower sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the second cell header identifier) 001
  • 12-bit cell body content is position information sub-lower data
  • speed information (12 bits, including 3-bit cell header and 9-bit cell body, and 3-bit cell header content is fifth cell
  • the head identifier 100, the 12-bit cell body content is the speed data
  • the altitude information information (18 bits, including the 3-bit cell header and the 15-bit cell body, and the 3-bit cell header content is the sixth letter
  • the meta tag identifier 101, the 15-bit cell body content is the altitude data), since the application data field of the CSBK frame has a total length of 60 bits, there is no remaining bit
  • the third implementation manner is that the transmitting terminal 10 actively uploads the positioning information to the receiving station 20 by transmitting the LC frame.
  • the positioning information includes initial location information and subsequent location change information, and the transmitting terminal 10 first uploads two LC frames to receive.
  • the custom fields for the first LC frame are as follows:
  • Application data field of the LC frame location information high-order subframe (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is fourth cell header identifier 011, 12-bit
  • the cell body content is the location information high-order data
  • the location information sub-high-order subframe (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the third cell header identifier) 010
  • the 12-bit cell body content is the position information second-order data
  • the speed information (12 bits, including the 3-bit cell header and the 9-bit cell body
  • the 3-bit cell header content is the fifth cell
  • the header identifier 100, the 12-bit cell volume content is speed data), a total of 42 bits. Since the total length of the application data field of the LC frame is 52 bits, the remaining 10 slots are supplemented by 0.
  • Application data field of the LC frame Location information low-order subframe (15 bits, including 3-bit cell header and 12 bits)
  • the cell body of the bit, the content of the 3-bit cell header is the first cell header identifier 000, the 12-bit cell body content is the position information low-order data), and the position information sub-lower sub-frame (15 bits, including 3 bits)
  • the cell header and the 12-bit cell body, the 3-bit cell header content is the second cell header identifier 001, the 12-bit cell body content is the position information sub-lower data), and the altitude information information (18 bits, Including a 3-bit cell header and a 15-bit cell body, the 3-bit cell header content is the sixth cell header identifier 101, and the 15-bit cell body content is altitude data), a total of 48 bits, due to LC
  • the total application data field of the frame is 52 bits long, so the remaining 4 slots are supplemented with 0.
  • the subsequent position change information may be used by the current time sending terminal 10 to obtain the position information low-order data and the position information.
  • the low-order data is used to represent that the LC frame including the low-order sub-frame of the location information and the sub-lower sub-frame of the location information needs to be re-uploaded, wherein the re-uploaded position information lower sub-frame and the sub-sub-frame of the position information are used to reflect the position change.
  • the current location is used to represent that the LC frame including the low-order sub-frame of the location information and the sub-lower sub-frame of the location information needs to be re-uploaded, wherein the re-uploaded position information lower sub-frame and the sub-sub-frame of the position information are used to reflect the position change.
  • Application data field of the LC frame low-order subframe of position information (15 bits, including a 3-bit cell header and a 12-bit cell body, and the 3-bit cell header content is the first cell header identifier 000, 12-bit
  • the cell body content is the position information low-order data
  • the position information sub-lower sub-frame (15 bits, including the 3-bit cell header and the 12-bit cell body, and the 3-bit cell header content is the second cell header identifier) 001
  • 12-bit cell body content is position information sub-lower data
  • speed information (12 bits, including 3-bit cell header and 9-bit cell body, and 3-bit cell header content is fifth cell
  • the header identifier 100, the 12-bit cell volume content is speed data), a total of 42 bits. Since the application data field of the LC frame has a total length of 52 bits, the remaining 10 bits are padded with 0s.
  • the speed information in the subsequent LC frame can also be replaced with the altitude information as follows:
  • Application data field of the LC frame low-order subframe of position information (15 bits, including a 3-bit cell header and a 12-bit cell body, and the 3-bit cell header content is the first cell header identifier 000, 12-bit The contents of the cell are in place Set information low-order data), position information sub-lower sub-frame (15 bits, including 3-bit cell header and 12-bit cell body, 3-bit cell header content is second cell header identifier 001, 12-bit The cell body content is the position information sub-lower data), the altitude information information (18 bits, including the 3-bit cell header and the 15-bit cell body, and the 3-bit cell header content is the sixth cell header identifier 101)
  • the 15-bit cell body content is the altitude data), which is 48 bits. Since the total length of the application data field of the LC frame is 52 bits, the remaining 4 slots are supplemented by 0. Therefore, the embodiment of the present invention can flexibly support the transmission terminal 10 to actively upload and passively pull up two data transmission modes.
  • the method for transmitting application data in this embodiment can be directly defined by extending the data type field and the application data field in the CSBK frame or the LC frame in the DMR standard, which is different from the prior art implementation.
  • Application data transmission using CSBK frames or LC frames can optimize the format of application data to save resources and improve communication efficiency and communication capacity.
  • FIG. 4 is a flowchart of a method for receiving application data according to an embodiment of the present invention. As shown in FIG. 4, the method for receiving application data of the present invention includes the following steps:
  • Step 201 The receiving station 20 receives the fixed-width signaling frame sent by the sending terminal 10, where the data type field of the fixed-width signaling frame includes a preset string, and the preset string is used to define the type of the applied application data.
  • the application data field of the fixed-width signaling frame includes one or more variable-length cells carrying the content of the application data, the variable-length cell includes a cell header and a cell body, and the cell header includes a cell header identifier, and a letter header
  • the meta header identifies the type of variable length cell, and the remaining space except one or more variable length cells is all padded with 0 or 1;
  • Step 202 The receiving station 20 reads the data type field to learn the type of the application data, and reads the application data field to learn the content of the application data.
  • the fixed width signaling frame includes a CSBK frame and an LC frame.
  • the preset string includes a first string
  • the application data includes: environment data, human health data, dedicated device remote control data, and/or global universal positioning information application data, where the preset string is the first string.
  • the type of application data is global universal positioning information application data.
  • variable length cells include location information lower subframe, location information lower subframe, location information secondary subframe, location information upper subframe, speed information, altitude information, and/or terminal Identifier.
  • the transmitting terminal 10 When the type of the variable length cell is the low bit subframe of the location information, the content of the application data is the low data of the location information, and the corresponding variable length cell includes a 3-bit cell header and a 12-bit cell body, and the total cell length For 15 bits, the transmitting terminal 10 writes the first cell header identifier 000 into the cell header to identify that the type of the variable length cell is the low bit subframe of the location information, and writes the low information of the location information into the cell body as The content of this variable length cell.
  • the content of the application data is the second-order data of the location information
  • the corresponding variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the cell The total length is 15 bits
  • the transmitting terminal 10 writes the second cell header identifier 001 into the cell header to identify that the type of the variable length cell is the sub-lower sub-frame of the location information, and writes the lower-order data of the location information into the cell.
  • the content in the body as the variable length cell.
  • the content of the application data is the second-order data of the location information
  • the corresponding variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the cell The total length is 15 bits
  • the transmitting terminal 10 writes the third cell header identifier 010 into the cell header to identify that the type of the variable length cell is the sub-high-order sub-frame of the location information, and writes the second-order data of the location information to the cell.
  • the content in the body as the variable length cell.
  • the type of the variable length cell is the high-order subframe of the location information
  • the content of the application data is the location information high-order data
  • the variable-length cell includes a 3-bit cell header and a 12-bit cell body, and the total length of the cell is 15 bits.
  • the transmitting terminal 10 writes the fourth cell header identifier 011 into the cell header to identify that the type of the variable length cell is the location information high-order subframe, and writes the location information high-order data into the cell body to serve as the variable length.
  • the content of the cell is the type of the variable length cell is the high-order subframe of the location information.
  • variable length cell When the type of the variable length cell is speed information, the content of the application data is speed data, and the variable length cell includes a 3-bit cell header and a 9-bit cell body, and the total length of the cell is 12 bits, and the transmitting terminal 10
  • the fifth cell header identifier 100 is written in the cell header to identify the type of the variable length cell as velocity information, and the velocity data is written into the cell body as the content of the variable length cell.
  • variable length cell When the type of variable length cell is altitude information, the content of the application data is altitude data, sea The height information includes a 3-bit cell header and a 15-bit cell body, and the total length of the cell is 18 bits.
  • the transmitting terminal 10 writes the sixth cell header identifier 101 into the cell header to identify the variable length cell.
  • the type is the altitude information, and the altitude data is written into the cell body as the content of the variable length cell.
  • the transmitting terminal 10 Write the seventh cell header identifier 110 into the cell header to identify the type of the variable length cell as a terminal identifier, and write the terminal identifier data into the cell body as the content of the variable length cell.
  • the receiving station 20 can learn the type of the application data by reading the data type field according to the rules disclosed in the previous embodiment, and read the application data field to learn the content of the application data.
  • the receiving station 20 can read the variable length cell one by one, and determine the type and length of the cell body by determining the cell header identifier in the cell header of the variable length cell, and according to The length of the cell body reads the content of the cell body, and processes the content of the cell body according to the type of the cell body, such as displaying the content of the cell body to remind the user, or multiple cell bodies. The contents are combined to calculate the status of the transmitting terminal and the like.
  • the method for receiving application data disclosed in this embodiment can directly use the CSBK frame or the LC frame for application data transmission by extending the definition of the data type field and the application data field in the CSBK frame or the LC frame in the DMR standard. .
  • FIG. 5 is a schematic structural diagram of a device according to a first embodiment of the present invention.
  • the transmitting terminal 10 includes:
  • the fixed-width signaling frame processing module 401 is configured to write a preset string in a data type field in the fixed-width signaling frame, where the preset string is used to define a type of application data to be transmitted, and a fixed width
  • One or more variable length cells are written in the application data field in the signaling frame, wherein the variable length cell includes a cell header and a cell body, the variable length cell carries content of the application data, and the cell header contains the cell a header identifier, the cell header identifier indicating a type of variable length cell, thereby obtaining an extended fixed-width signaling frame, and all remaining spaces except one or more variable-length cells are all padded with 0 or 1;
  • the sending module 402 is configured to send the extended fixed-width signaling frame to the receiving station, so that the receiving station can
  • the type of the application data is obtained by reading the data type field, and the content of the application data is obtained by reading the application data field.
  • the fixed width signaling frame includes a CSBK frame and an LC frame.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe of the position information.
  • the type of the variable length cell is the low bit subframe of the location information
  • the content of the application data is the location information low bit data
  • the fixed bandwidth signaling frame processing module writes the location information low bit data into the cell body to serve as the variable length cell.
  • the type of the variable length cell is the sub-lower sub-frame of the location information
  • the content of the application data is the sub-lower bit data of the location information
  • the fixed-width signaling frame processing module writes the sub-lower bit data of the location information into the cell body as the variable length.
  • the type of the variable length cell is the sub-high-order sub-frame of the location information
  • the content of the application data is the sub-high-order data of the location information
  • the fixed-width signaling frame processing module writes the sub-high-order data of the location information into the cell body as the variable length.
  • the type of the variable length cell is the high bit subframe of the location information
  • the content of the application data is the location information high-order data
  • the fixed-width signaling frame processing module writes the location information high-order data into the cell body to serve as the variable length cell.
  • the fixed width signaling frame processing module writes the speed data into the cell body as the content of the variable length cell;
  • the type of the variable length cell is the altitude information
  • the content of the application data is the altitude data
  • the fixed width signaling frame processing module writes the altitude data into the cell body as the content of the variable length cell
  • the type of the variable length cell is the terminal identification code
  • the content of the application data is the terminal identification code data
  • the fixed width signaling frame processing module writes the terminal identification code data into the cell body to serve as the content of the variable length cell.
  • FIG. 6 is a schematic structural diagram of a device according to a first embodiment of the receiving station of the present invention. As shown in FIG. 6, the receiving station 20 includes:
  • the receiving module 501 is configured to receive a fixed-width signaling frame sent by the sending terminal, where the data type field of the fixed-width signaling frame includes a preset string, where the preset string is used to define a type of the applied application data,
  • the application data field of the wide signaling frame includes one or more variable length cells carrying the content of the application data, the variable length cell includes a cell header and a cell body, and the cell header includes a cell header identifier, and the cell header
  • the header identifier indicates the type of the variable length cell, and the remaining space except one or more variable length cells is all padded with 0 or 1;
  • the data reading module 502 is configured to read the data type field, learn the type of the application data, and read the application data field to learn the content of the application data.
  • the fixed width signaling frame includes a CSBK frame and an LC frame.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe of the position information.
  • the transmitting terminal writes the location information low bit data into the cell body as the content of the variable length cell;
  • the type of the variable length cell is the sub-lower sub-frame of the location information
  • the content of the application data is the sub-lower bit data of the location information
  • the transmitting terminal writes the sub-lower bit data of the location information into the cell body to serve as the content of the variable length cell; and / or
  • the type of the variable length cell is the sub-high-order sub-frame of the location information
  • the content of the application data is the second-order data of the location information
  • the transmitting terminal writes the second-order data of the location information into the cell body to serve as the variable-length cell.
  • the transmitting terminal writes the location information high data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the speed data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the altitude data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the terminal identification code data into the cell body to serve as the content of the variable length cell.
  • FIG. 7 is a schematic structural diagram of a device according to a second embodiment of the present invention.
  • the transmitting terminal 10 includes at least one processor 601, at least one wireless network interface 602, and a memory 603. And at least one communication bus 604, the memory 603 is configured to store program instructions, and the processor 601 is configured to:
  • variable length cell includes a cell header and a cell body, the variable length cell carries content of the application data, the cell header includes a cell header identifier, and the cell header identifier Representing a type of variable length cell, thereby obtaining an extended fixed-width signaling frame, and all remaining spaces except one or more variable-length cells are all padded with 0 or 1;
  • the fixed width signaling frame includes a CSBK frame and an LC frame.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe of the position information.
  • the type of the variable length cell is the low bit subframe of the location information
  • the content of the application data is the location information low bit data
  • the processor 601 executes the program instruction to write the location information low bit data into the cell body as the variable length cell. Content; and/or
  • the type of the variable length cell is the sub-lower sub-frame of the location information
  • the content of the application data is the sub-lower bit data of the location information
  • the processor 601 executes the program instruction to write the sub-lower bit data of the location information into the cell body as the variable length.
  • the type of the variable length cell is the sub-high-order sub-frame of the location information
  • the content of the application data is the second-order data of the location information
  • the processor 601 executes the program instruction to write the sub-high-order data of the location information into the cell body as the variable length.
  • the type of the variable length cell is the position information high-order sub-frame
  • the content of the application data is the position information high-order data
  • the processor 601 executes the program instruction to write the position information high-order data into the cell body as the variable length cell. Content; and/or
  • the processor 601 executes the program instruction to write the speed data into the cell body as the content of the variable length cell;
  • the processor 601 executes the program instruction to write the altitude data into the cell body as the content of the variable length cell; and / or
  • the type of the variable length cell is the terminal identification code
  • the content of the application data is the terminal identification code data
  • the processor 601 executes the program instruction to write the terminal identification code data into the cell body as the content of the variable length cell.
  • FIG. 8 is a schematic structural diagram of a device according to a second embodiment of the receiving station of the present invention.
  • the receiving station 20 includes: at least one processor 701, at least one wireless network interface 702, and a memory 703, and at least one communication bus 704, the memory 703 is configured to store program instructions, and the processor 701 is configured to:
  • the program instructions are executed to read the data type field to know the type of the application data, and read the application data field to know the content of the application data.
  • the fixed width signaling frame includes a CSBK frame and an LC frame.
  • the application data includes: environmental data, human health data, dedicated device remote control data, and/or global universal positioning information application data.
  • the preset string includes a first string.
  • the type of the application data is global universal positioning information application data
  • the type of the variable length cell includes a low position subframe of the position information.
  • the transmitting terminal writes the location information low bit data into the cell body as the content of the variable length cell;
  • the type of the variable length cell is the sub-lower sub-frame of the location information
  • the content of the application data is the sub-lower bit data of the location information
  • the transmitting terminal writes the sub-lower bit data of the location information into the cell body to serve as the content of the variable length cell; and / or
  • the transmitting terminal writes the second-order data of the location information into the cell body as the content of the variable-length cell; and / or
  • the transmitting terminal writes the location information high data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the speed data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the altitude data into the cell body as the content of the variable length cell;
  • the transmitting terminal writes the terminal identification code data into the cell body to serve as the content of the variable length cell.
  • the present invention extends the data type field and the application data field of the fixed-width signaling frame defined in the communication standard by extending the data type field and the application data field of the fixed-width signaling frame defined in the communication standard,
  • the application data field of the fixed-width signaling frame can carry different types of application data customized to optimize the transmission format of the application data to save resources, and improve communication efficiency and communication capacity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种发送终端、接收台及应用数据的发送和接收方法，该应用数据的发送方法包括以下步骤：发送终端在定宽信令帧中的数据类型字段中写入预设字串，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，从而获得扩展后的定宽信令帧；发送终端将扩展后的定宽信令帧向接收台发送，使得接收台可以通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。通过上述方式，本发明所提供的技术方案能够直接采用定宽信令帧进行应用数据传输，可优化应用数据的格式以节约资源，并提高通信效率以及通信容量。

Description

发送终端、接收台及应用数据的发送和接收方法 【技术领域】
本发明涉及数字无线通信领域，特别是涉及一种发送终端、接收台及应用数据的发送和接收方法。
【背景技术】
在数字专网通信应用中，数据业务的多样化应用需求越来越强烈，同时在专网通信中由于频谱资源的稀缺性和昂贵的通信设备使得空口通信资源成为无线通信系统容量的瓶颈。
随着数据业务的多样化和大容量发展，空口通信的瓶颈在数据通信业务中越来越明显，严重制约了数据应用的发展。
目前DMR(Digital Mobile Radio，数字移动无线电)数字集群通信标准是ETSI(欧洲通信标准协会)为了满足欧洲各国的中低端专业及商业用户对移动通信的需要而设计、制订的开放性标准，于2005年4月推出的数字移动无线系统标准，其最新版本为ETSI TS 102361-4)。
而该标准中仅定义了基于UDT(UDP-based Data Transfer Protocol，基于UDP的数据传输协议)机制的短数据业务和位置信息格式来支持应用数据的传输，如传送短数据、扩展地址号码、用户补充信息等数据。而DMR标准中定义的定宽信令帧并不能用于传输应用数据。
UDT机制主要存在的问题是：数据格式固定，只能限定于传输短数据、扩展地址号码、用户补充信息等在UDT机制中限定的有限种类的应用数据，而不能传输其他类型的应用数据，从而造成通信效率不高、资源浪费等技术问题。
【发明内容】
本发明主要解决的技术问题是提供一种发送终端、接收台及应用数据的发 送和接收方法，可使定宽信令帧的应用数据字段能够承载自定义的不同类型的应用数据，从而优化应用数据的传输格式以节约资源，并提高通信效率以及通信容量。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种应用数据的发送方法，包括：发送终端在定宽信令帧中的数据类型字段中写入预设字串，预设字串用于定义所要传输的应用数据的类型，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，从而获得扩展后的定宽信令帧；发送终端将扩展后的定宽信令帧向接收台发送，使得接收台可以通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。
其中，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
其中，变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，发送终端将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，发送终端将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，发送终端将位置信息次高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位 数据，发送终端将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，发送终端将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，发送终端将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，发送终端将终端识别码数据写入信元体中以作为本变长信元的内容。
本发明进一步提供一种应用数据的接收方法，包括：接收台接收发送终端发送的定宽信令帧；其中定宽信令帧的数据类型字段中包含预设字串，预设字串用于定义所传输的应用数据的类型，定宽信令帧的应用数据字段中包含承载有应用数据的内容的一个或多个变长信元，变长信元包括信元头和信元体，信元头中包含信元头标识，信元头标识表示变长信元的种类；接收台读取数据类型字段，获知应用数据的类型，并读取应用数据字段，获知应用数据的内容。
其中，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
其中，变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，发送终端将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，发送终端将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，发送终端将位置信息次高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，发送终端将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，发送终端将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，发送终端将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，发送终端将终端识别码数据写入信元体中以作为本变长信元的内容。
本发明进一步提供一种发送终端，包括：定宽信令帧处理模块，用于在定宽信令帧中的数据类型字段中写入预设字串，其中预设字串用于定义所要传输的应用数据的类型，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，从而获得扩展后的定宽信令帧；发送模块，用于将扩展后的定宽信令帧向接收台发送，使得接收台可以通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。
其中，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
本发明进一步提供一种接收台，包括：
接收模块，用于接收发送终端发送的定宽信令帧；其中定宽信令帧的数据类型字段中包含预设字串，预设字串用于定义所传输的应用数据的类型，定宽信令帧的应用数据字段中包含承载有应用数据的内容的一个或多个变长信元，变长信元包括信元头和信元体，信元头中包含信元头标识，信元头标识表示变长信元的种类；数据读取模块，用于读取数据类型字段，获知应用数据的类型，并读取应用数据字段，获知应用数据的内容。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
本发明进一步提供一种发送终端，包括至少一个处理器、至少一个无线网络接口、存储器、和至少一个通信总线，存储器用于存储程序指令，处理器，用于：执行程序指令以对定宽信令帧中的数据类型字段中写入预设字串，其中预设字串用于定义所要传输的应用数据的类型，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，从而获得扩展后的定宽信令帧；执行程序指令以通过无线网络接口将扩展后的定宽信令帧向接收台发送，使得接收台可以通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
本发明进一步提供一种接收台，包括：至少一个处理器、至少一个无线网络接口、存储器、和至少一个通信总线，存储器用于存储程序指令，处理器， 用于：执行程序指令以接收发送终端发送的定宽信令帧；其中定宽信令帧的数据类型字段中包含预设字串，预设字串用于定义所传输的应用数据的类型，定宽信令帧的应用数据字段中包含承载有应用数据的内容的一个或多个变长信元，变长信元包括信元头和信元体，信元头中包含信元头标识，信元头标识表示变长信元的种类；执行程序指令以读取数据类型字段，获知应用数据的类型，并读取应用数据字段，获知应用数据的内容。
其中，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
本发明的有益效果是：区别于现有技术的实施方式，本发明的发送终端、接收台及应用数据的发送和接收方法，对通信标准中定义的定宽信令帧的数据类型字段和应用数据字段进行扩展，可使定宽信令帧的应用数据字段能够承载自定义的不同类型的应用数据，从而优化应用数据的传输格式以节约资源，并提高通信效率以及通信容量。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是根据本发明实施例的系统连接框图；
图2是根据本发明实施例的变长信元的数据格式示意图；
图3是根据本发明实施例的应用数据的发送方法的流程图；
图4是根据本发明实施例的应用数据的接收方法的流程图；
图5是本发明发送终端第一实施例的装置结构示意图；
图6是本发明接收台第一实施例的装置结构示意图；
图7是本发明发送终端第二实施例的装置结构示意图；以及
图8是本发明接收台第二实施例的装置结构示意图。
【具体实施例】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性的劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
首先，需要作出说明的是，本发明实施例主要以DMR标准中定义的CSBK帧和LC帧作为定宽信令帧的一个例子进行说明，但本发明不应只局限于DMR通信系统中定义的CSBK帧和LC帧，也可以应用于定义了其他定宽信令帧的通信系统中的单帧数据控制信令或多帧数据控制信令。
请参见图1，图1是根据本发明实施例的系统连接框图，如图1所示，发送终端10与接收台20之间通过DMR数字集群通信标准建立无线信令连接。
其中，终端10与接收台20均设置在无线通信系统中。
值得注意的是，本发明实施例中揭示的接收台20具体可为基站、手持终端或服务台。
在本发明实施例中，发送终端10与接收台20之间可传输CSBK(Control Signaling Block，控制信令)帧，其中CSBK帧格式如下表1：
Figure PCTCN2016090218-appb-000001
表1
并且，发送终端10与接收台20之间也可传输LC(Link Control，嵌入控制信令)帧，其中LC帧格式如下表2：
Figure PCTCN2016090218-appb-000002
表2
如表1所示，在本发明实施例中，CSBK帧的LB字段、PF字段、CSBKO字段、FID字段均与DMR标准定义一致，本发明实施例中对其没有作任何改动。
同样地，如表2所示，在本发明实施例中，LC帧的LB字段、PF字段、LCO字段、FID字段均与DMR标准定义一致，本发明实施例中对其没有作任何改动。
而在本发明实施例中，主要将CSBK帧或LC帧的数据类型字段和应用数据字段作为扩展字段进行扩展定义。
具体而言，在CSBK帧或LC帧中，发送终端10通过写入预定字串至数据 类型字段来选定应用数据的类型。举例来说如可输入0000至该字段来标识本CSBK帧或LC帧的应用数据字段所要传输的应用数据为全球通用定位信息应用数据，值得注意的是，在本发明实施例中，主要针对全球定位信息应用数据的传输方式进行说明，然而，本发明实施例也可以支持环境数据、人体健康数据、专用设备远程控制数据以及其他应用数据的传输，通过在应用数据字段加载不同大小的变长信元，可以满足不同的应用需求。
由于CSBK帧或LC帧中数据类型字段定义为4位，因此本发明实施例可支持24＝16种应用数据的类型。
值得注意的是，当数据类型数量不足时，可以通过应用数据进行子类型扩展以支持更多的应用类型。
可结合图2进行参考，图2是根据本发明实施例的变长信元的数据格式示意图。如图2所示，每个变长信元300包括信元头301和信元体302，在本发明实施例中，可将想要传输的应用数据设置于一个或多个变长信元300中，变长信元300的种类由信元头301中写入的信元头标识确定。
以一个或多个变长信元300填充应用数据字段，且在应用数据字段中，除一个或多个变长信元外的剩余的空间全部以0填充。
值得注意的是，在发送终端10与接收台20预先约定的情况下，发送终端10亦可全部以1来填充除一个或多个变长信元外的剩余的空间。
值得注意的是，CSBK帧的应用数据字段数据长度为60位，LC帧的应用数据字段数据长度为52位，因此为了充分利用应用数据字段，可在每一个帧的应用数据字段填充所需传输的最大数量的变长信元，且在有剩余空间存在时，剩余的空间的长度小于多个变长信元中的长度最小者。
因此，每一变长信元300可通过信元头301进行子类型扩展，从而支持更多的应用数据类型。
以下请参见图3，图3是根据本发明实施例的应用数据的发送方法的流程图。如图3所示，根据本发明实施例的应用数据的发送方法包括如下步骤：
步骤101：发送终端10在定宽信令帧中的数据类型字段中写入预设字串，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元从而获得扩展后的定宽信令帧。在本步骤中，预设字串用于定义所要传输的应用数据的类型，变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，步骤101具体通过在数据类型字段中写入预设字串来定义所要传输的应用数据的类型、并在应用数据字段中写入一个或多个变长信元以作为应用数据的内容，且在应用数据字段中，变长信元包括信元头和信元体，变长信元的种类由信元头中写入的信元头标识确定，除一个或多个变长信元外的剩余的空间全部以0或1填充。
步骤102：发送终端10将经扩展后的定宽信令帧向接收台20发送。从而使得接收台20通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。并且，接收台20在读取应用数据字段时，可进一步通过读取信元头标识来获知变长信元的种类，并通过读取信元体来获知变长信元的内容。
在本实施例中，定宽信令帧包括CSBK帧和LC帧，由于CSBK帧或LC帧的数字类型字段为4位数据长度，因此预设字串可包括第一字串0000，第二字串0001，第三字串0002......第十六字串1111，不同的预设字串用于标识CSBK帧或LC帧的应用数据字段中所要传输的应用数据类型。
应用数据类型包括：环境数据、人体健康数据、专用设备远程控制数据、全球通用定位信息应用数据，具体可通过上述字串来识别各应用数据类型。
在本发明实施例中，假定在预设字串为第一字串0000时，应用数据的类型为全球通用定位信息应用数据。值得注意的是，上述对应关系仅用于示例说明，在实际应用中，也可约定全球通用定位信息应用数据对应的字串为第二至第十六字串中的任一者，本发明对其不作具体限定。
全球通用定位信息应用数据具体包括：位置信息低位数据、位置信息次低位数据、位置信息次高位数据、位置信息高位数据、速度数据、海拔高度数据 和/或终端识别码数据。
在本发明实施例中，可将位置信息低位数据、位置信息次低位数据、位置信息次高位数据、位置信息高位数据、速度数据、海拔高度数据以及终端识别码数据分别设置在不同的变长信元的信元体中，并以变长信元的信元头标识来识别，变长信元具体包括：位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息以及终端识别码。具体可参见下表3：
信元头标识 信元体长度(bits，位) 信元总长度(bits，位) 说明
第一信元头标识0(000) 12 15 位置信息低位子帧
第二信元头标识1(001) 12 15 位置信息次低位子帧
第三信元头标识2(010) 12 15 位置信息次高位子帧
第四信元头标识3(011) 12 15 位置信息高位子帧
第五信元头标识4(100) 9 12 速度信息
第六信元头标识5(101) 15 18 海拔高度信息
第七信元头标识6(110) 24 27 终端识别码
第八信元头标识7(111) 保留    
表3
如表3所示，在预设字串为第一字串0000以选定应用数据的类型为全球通用定位信息应用数据时，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
该些变长信元的的信元头标识分别为第一信元头标识000、第二信元头标识001、第三信元头标识010、第四信元头标识011、第五信元头标识100、第六信元头标识101、第七信元头标识110。接收台20可通过读取信元头标识来获知变长信元的种类，并通过读取信元体内容来获知变长信元的内容。
值得注意的是，在本发明实施例中，信元头的长度并不会只限定在3位，且信元头标识与变长信元种类的对应关系也并不仅仅局限于上表所示。在实际应用中，信元头的长度可根据变长信元的种类数量来设置，变长信元的种类可根据实际通信应用场景来选取，本发明对此不作任何限定。
请继续参见表3，其中：
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第一信元头标识000写入信元头中以标识本变长信元的种类为位置信息低位子帧，将位置信息低位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第二信元头标识001写入信元头中以标识本变长信元的种类为位置信息次低位子帧，将位置信息次低位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第三信元头标识010写入信元头中以标识本变长信元的种类为位置信息次高位子帧，将位置信息次高位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第四信元头标识011写入信元头中以标识本变长信元的种类为位置信息高位子帧，将位置信息高位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为速度信息时，应用数据的内容为速度数据，变长信元包括3位的信元头和9位的信元体，信元总长度为12位，发送终端10将第五信元头标识100写入信元头中以标识本变长信元的种类为速度信息，将速度数据写入信元体中以作为本变长信元的内容。
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，海拔高度信息包括3位的信元头和15位的信元体，信元总长度为18位，发送终端10将第六信元头标识101写入信元头中以标识本变长信元的种类为海拔高度 信息，将海拔高度数据写入信元体以作为本变长信元的内容。
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，终端识别码包括3位的信元头和24位的信元体，信元总长度为27位，发送终端10将第七信元头标识110写入信元头中以标识本变长信元的种类为终端识别码，将终端识别码数据写入信元体以作为本变长信元的内容。
值得注意的是，在本发明中，信元头和信元体的位数并不仅仅局限于上述，信元头和信元体的位数可根据实际需要进行调整，具体可根据所使用的压缩算法来决定位数。
由于上述变长信元可以组合设置于CSBK帧或LC帧的应用数据字段中，故能够充分利用CSBK帧或LC帧的应用数据字段来来承载自定义的不同种类的应用数据，因此能够有效提升无线通信系统的位置信息传输容量。
上述的变长信元可根据需要选择加载到CSBK帧或LC帧的应用数据字段中进行上传，故可以灵活支持CSBK帧和LC帧等不同单元长度的通信信道。另外由于设置了多个变长信元以承载应用数据，采用信息颗粒化思想来填充CSBK帧和LC帧中固定长度的应用数据字段，故还可以灵活地支持多种信息组合，可提高信息传输容量，并最大化信息传输效率。
在本发明实施例中，发送终端10可根据实际需要选择上传携带有不同应用数据的CSBK帧和LC帧至接收台20，从而适应不同的应用场景，下面以应用数据为全球通用定位信息应用数据来进行具体说明：
本发明实施例所揭示的全球通用定位信息应用数据的上传方法有如下三种实施方式：
第一种实施方式是发送终端10通过CSBK帧主动上传定位信息至接收台20，此时定位信息包括初始位置信息和后续位置变化信息，发送终端10首先上传初始位置信息至接收台20，在后续位置变化时，发送终端10上传更新后的位置信息至接收台20。
对于初始位置信息，发送终端10需要首先上传两个CSBK帧至接收台20， 第一个CSBK帧的自定义字段设置如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第四信元头标识011，12位的信元体内容为位置信息高位数据)、位置信息次高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第三信元头标识010，12位的信元体内容为位置信息次高位数据)、终端识别码(27位，包括3位的信元头和24位的信元体，3位的信元头内容为第七信元头标识110，24位的信元体内容为终端识别码数据)，共57位，由于CSBK帧的应用数据字段总长为60位，因此剩余3个位以0(由发送终端10预先与接收台20约定)填充。
第二个CSBK帧的自定义字段设置如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、终端识别码(27位，包括3位的信元头和24位的信元体，3位的信元头内容为第七信元头标识110，24位的信元体内容为终端识别码数据)，共57位，由于CSBK帧的应用数据字段总长为60位，因此剩余3个位以0填充。
而在后续发送终端10的位置信息变化时，发送终端10可以上传CSBK帧以告知接收台20发送终端10的最新位置，该CSBK帧可包括以下三种情况：
当发送终端10的位置变化需要用两个子帧来表示时(比如移动距离大于100米但小于9公里)，后续的位置变化信息可用当前时刻发送终端10获取到的位置信息低位数据和位置信息次低位数据来体现，此时需要重新上传包括位置信息低位子帧和位置信息次低位子帧的CSBK帧，其中重新上传的位置信息低位子 帧和位置信息次低位子帧用于体现发生位置变化后的当前位置，该CSBK帧的自定义字段设置如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、终端识别码(27位，包括3位的信元头和24位的信元体，3位的信元头内容为第七信元头标识110，24位的信元体内容为终端识别码数据)，共57位，由于CSBK帧的应用数据字段总长为60位，因此剩余3个位以0填充。
当位置变化需要用1个子帧来表示时(比如移动距离小于100米)，后续的CSBK帧除可以携带位置信息变化信息之外，还可以携带速度信息。
该CSBK帧的自定义字段设置如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、速度信息(12位，包括3位的信元头和9位的信元体，3位的信元头内容为第五信元头标识100，12位的信元体内容为速度数据)、终端识别码(27位，包括3位的信元头和24位的信元体，3位的信元头内容为第七信元头标识110，24位的信元体内容为终端识别码数据)，共54位，由于CSBK帧的应用数据字段总长为60位，因此剩余6个位以0填充。
因此，当位置变化需要用1个子帧来表示时，由于位置变化不大(100米以内)，仅需重新上传一个当前时刻的位置信息低位子帧以取代原位置信息低位子帧即可，可选地，后续的CSBK帧除携带更新的位置信息之外，还可以携带海拔高度信息信息来代替速度信息，该种情况下后续的CSBK帧的自定义字段设 置如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、海拔高度信息(18位，包括3位的信元头和15位的信元体，3位的信元头内容为第六信元头标识101，15位的信元体内容为海拔高度数据)，终端识别码(27位，包括3位的信元头和24位的信元体，3位的信元头内容为第七信元头标识110，24位的信元体内容为终端识别码数据)，共60位，由于CSBK帧的应用数据字段总长为60位，因此无需填充0。
在第二种实施方式中，接收台20可先向发送终端10发送定位信息请求，发送终端10可通过响应该定位信息请求上传一个CSBK帧至接收台20对定位信息进行应答。
该CSBK帧的扩展字段定义如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第四信元头标识011，12位的信元体内容为位置信息高位数据)、位置信息次高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第三信元头标识010，12位的信元体内容为位置信息次高位数据)、位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)，共60位，由于CSBK帧的应用数据字段总长为60位，因此没有剩余位，无需补0。
当发送终端10的位置变化量需要通过用两个子帧来承载(比如移动距离大于100米但小于9公里)时，可补充发送一个CSBK帧以对位置信息进行更新， 实现约9公里的移动覆盖范围，并可以利用剩余空间存储海拔高度信息。
该CSBK帧的自定义字段如下：
CSBK帧的数据类型字段：0000
CSBK帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、速度信息(12位，包括3位的信元头和9位的信元体，3位的信元头内容为第五信元头标识100，12位的信元体内容为速度数据)、海拔高度信息信息(18位，包括3位的信元头和15位的信元体，3位的信元头内容为第六信元头标识101，15位的信元体内容为海拔高度数据)，由于CSBK帧的应用数据字段总长为60位，因此没有剩余位，无需补0。
第三种实施方式是发送终端10通过发送LC帧以主动上传定位信息至接收台20，同样地，定位信息包括初始位置信息和后续的位置变化信息，发送终端10首先上传两个LC帧至接收台20，第一个LC帧的自定义字段如下：
LC帧的数据类型字段：0000
LC帧的应用数据字段：位置信息高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第四信元头标识011，12位的信元体内容为位置信息高位数据)、位置信息次高位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第三信元头标识010，12位的信元体内容为位置信息次高位数据)、速度信息(12位，包括3位的信元头和9位的信元体，3位的信元头内容为第五信元头标识100，12位的信元体内容为速度数据)，共42位，由于LC帧的应用数据字段总长为52位，因此剩余10个空位以0补充。
第二个LC帧的自定义字段如下：
LC帧的数据类型字段：0000
LC帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12 位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、海拔高度信息信息(18位，包括3位的信元头和15位的信元体，3位的信元头内容为第六信元头标识101，15位的信元体内容为海拔高度数据)，共48位，由于LC帧的应用数据字段总长为52位，因此剩余4个空位以0补充。
当发送终端10的位置变化需要用两个子帧来表示时(比如移动距离大于100米但小于9公里)，后续的位置变化信息可用当前时刻发送终端10获取到的位置信息低位数据和位置信息次低位数据来体现，此时需要重新上传包括位置信息低位子帧和位置信息次低位子帧的LC帧，其中重新上传的位置信息低位子帧和位置信息次低位子帧用于体现发生位置变化后的当前位置。
该LC帧的自定义字段如下：
LC帧的数据类型字段：0000
LC帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、速度信息(12位，包括3位的信元头和9位的信元体，3位的信元头内容为第五信元头标识100，12位的信元体内容为速度数据)，共42位，由于LC帧的应用数据字段总长为52位，因此剩余10个位以0填充。
同样地，在位置继续变化时，后续LC帧中的速度信息亦可以替换成海拔高度信息如下：
LC帧的数据类型字段：0000
LC帧的应用数据字段：位置信息低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第一信元头标识000，12位的信元体内容为位 置信息低位数据)、位置信息次低位子帧(15位，包括3位的信元头和12位的信元体，3位的信元头内容为第二信元头标识001，12位的信元体内容为位置信息次低位数据)、海拔高度信息信息(18位，包括3位的信元头和15位的信元体，3位的信元头内容为第六信元头标识101，15位的信元体内容为海拔高度数据)，共48位，由于LC帧的应用数据字段总长为52位，因此剩余4个空位以0补充。因此，本发明实施例更可以灵活地支持发送终端10主动上传和被动上拉两种数据传输方式。
综上所述，区别于现有技术的实施方式，本实施例的应用数据的发送方法，通过对DMR标准中的CSBK帧或LC帧中的数据类型字段和应用数据字段进行扩展定义，能够直接采用CSBK帧或LC帧进行应用数据传输，可优化应用数据的格式以节约资源，并提高通信效率以及通信容量。
以下请参见图4，图4是根据本发明实施例的应用数据的接收方法的流程图，如图4所示，本发明的应用数据的接收方法包括如下步骤：
步骤201：接收台20接收发送终端10发送的定宽信令帧，其中定宽信令帧的数据类型字段中包含预设字串，预设字串用于定义所传输的应用数据的类型，定宽信令帧的应用数据字段中包含承载有应用数据的内容的一个或多个变长信元，变长信元包括信元头和信元体，信元头中包含信元头标识，信元头标识表示变长信元的种类，除一个或多个变长信元外的剩余的空间全部以0或1填充；
步骤202：接收台20读取数据类型字段以获知应用数据的类型，并读取应用数据字段以获知应用数据的内容。
在本实施例中，定宽信令帧包括CSBK帧和LC帧。
可选地，预设字串包括第一字串，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据。
可选地，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端 识别码。
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第一信元头标识000写入信元头中以标识本变长信元的种类为位置信息低位子帧，将位置信息低位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第二信元头标识001写入信元头中以标识本变长信元的种类为位置信息次低位子帧，将位置信息次低位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，对应的，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第三信元头标识010写入信元头中以标识本变长信元的种类为位置信息次高位子帧，将位置信息次高位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，变长信元包括3位的信元头和12位的信元体，信元总长度为15位，发送终端10将第四信元头标识011写入信元头中以标识本变长信元的种类为位置信息高位子帧，将位置信息高位数据写入信元体中以作为本变长信元的内容。
变长信元的种类为速度信息时，应用数据的内容为速度数据，变长信元包括3位的信元头和9位的信元体，信元总长度为12位，发送终端10将第五信元头标识100写入信元头中以标识本变长信元的种类为速度信息，将速度数据写入信元体中以作为本变长信元的内容。
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，海 拔高度信息包括3位的信元头和15位的信元体，信元总长度为18位，发送终端10将第六信元头标识101写入信元头中以标识本变长信元的种类为海拔高度信息，将海拔高度数据写入信元体以作为本变长信元的内容。
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，终端识别码包括3位的信元头和24位的信元体，信元总长度为27位，发送终端10将第七信元头标识110写入信元头中以标识本变长信元的种类为终端识别码，将终端识别码数据写入信元体以作为本变长信元的内容。在本实施例中，接收台20可根据上一实施例中揭示的规则，通过读取数据类型字段以获知应用数据的类型，并读取应用数据字段以获知应用数据的内容。
并且，接收台20在读取应用数据字段时，可逐一读取变长信元，通过判断变长信元的信元头中的信元头标识来获知信元体的种类和长度，并根据信元体的长度读取出信元体的内容，并根据信元体的种类对信元体的内容进行相应处理，如将信元体的内容显示以提醒用户，或将多个信元体的内容合并以计算发送终端的状态等等。
故，本实施例所揭示的应用数据的接收方法，通过对DMR标准中的CSBK帧或LC帧中的数据类型字段和应用数据字段进行扩展定义，能够直接采用CSBK帧或LC帧进行应用数据传输。
以下请参见图5，图5是本发明发送终端第一实施例的装置结构示意图，如图5所示，发送终端10包括：
定宽信令帧处理模块401，用于在定宽信令帧中的数据类型字段中写入预设字串，其中预设字串用于定义所要传输的应用数据的类型，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，从而获得扩展后的定宽信令帧，而除一个或多个变长信元外的剩余的空间全部以0或1填充；
发送模块402，用于将扩展后的定宽信令帧向接收台发送，使得接收台可以 通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。
可选地，定宽信令帧包括CSBK帧和LC帧。
可选地，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
可选地，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，定宽信令帧处理模块将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，定宽信令帧处理模块将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，定宽信令帧处理模块将位置信息次高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，定宽信令帧处理模块将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，定宽信令帧处理模块将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，定宽信令帧处理模块将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，定宽信令帧处理模块将终端识别码数据写入信元体中以作为本变长信元的内容。
以下请参见图6，图6是本发明接收台第一实施例的装置结构示意图，如图6所示，接收台20包括：
接收模块501，用于接收发送终端发送的定宽信令帧；其中定宽信令帧的数据类型字段中包含预设字串，预设字串用于定义所传输的应用数据的类型，定宽信令帧的应用数据字段中包含承载有应用数据的内容的一个或多个变长信元，变长信元包括信元头和信元体，信元头中包含信元头标识，信元头标识表示变长信元的种类，除一个或多个变长信元外的剩余的空间全部以0或1填充；
数据读取模块502，用于读取数据类型字段，获知应用数据的类型，并读取应用数据字段，获知应用数据的内容。
可选地，定宽信令帧包括CSBK帧和LC帧。
可选地，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
可选地，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，发送终端将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，发送终端将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，发送终端将位置信息次高位数据写入信元体中以作为本变长信元的 内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，发送终端将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，发送终端将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，发送终端将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，发送终端将终端识别码数据写入信元体中以作为本变长信元的内容。
以下请参见图7，图7是本发明发送终端第二实施例的装置结构示意图，如图7所示，发送终端10包括，包括至少一个处理器601、至少一个无线网络接口602、存储器603、和至少一个通信总线604，存储器603用于存储程序指令，处理器601，用于：
执行程序指令以对定宽信令帧中的数据类型字段中写入预设字串，其中预设字串用于定义所要传输的应用数据的类型，并在定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中变长信元包括信元头和信元体，变长信元承载应用数据的内容，信元头中包含信元头标识，信元头标识表示变长信元的种类，从而获得扩展后的定宽信令帧，且除一个或多个变长信元外的剩余的空间全部以0或1填充；
执行程序指令以通过无线网络接口将扩展后的定宽信令帧向接收台发送，使得接收台可以通过读取数据类型字段获知应用数据的类型，并通过读取应用数据字段获知应用数据的内容。
可选地，定宽信令帧包括CSBK帧和LC帧。
可选地，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
可选地，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，处理器601执行程序指令以将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，处理器601执行程序指令以将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，处理器601执行程序指令以将位置信息次高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，处理器601执行程序指令以将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，处理器601执行程序指令以将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，处理器601执行程序指令以将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，处理器601执行程序指令以将终端识别码数据写入信元体中以作为本变长信元的内容。
以下请参见图8，图8是本发明接收台第二实施例的装置结构示意图，如图8所示，接收台20包括：至少一个处理器701、至少一个无线网络接口702、存 储器703、和至少一个通信总线704，存储器703用于存储程序指令，处理器701，用于：
执行程序指令以控制无线网络接口702接收发送终端上传的定宽信令帧，其中发送终端对定宽信令帧中的数据类型字段和应用数据字段进行扩展定义，具体通过在数据类型字段中写入预设字串来定义所要传输的应用数据的类型、并在应用数据字段中写入一个或多个变长信元以作为应用数据的内容，且在应用数据字段中，变长信元包括信元头和信元体，变长信元的种类由信元头中写入的信元头标识确定，除一个或多个变长信元外的剩余的空间全部以0填充；
执行程序指令以读取数据类型字段以获知应用数据的类型，并读取应用数据字段以获知应用数据的内容。
可选地，定宽信令帧包括CSBK帧和LC帧。
可选地，应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
可选地，预设字串包括第一字串，在预设字串为第一字串时，应用数据的类型为全球通用定位信息应用数据，变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
变长信元的种类为位置信息低位子帧时，应用数据的内容为位置信息低位数据，发送终端将位置信息低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次低位子帧时，应用数据的内容为位置信息次低位数据，发送终端将位置信息次低位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息次高位子帧时，应用数据的内容为位置信息次高位数据，发送终端将位置信息次高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为位置信息高位子帧时，应用数据的内容为位置信息高位数据，发送终端将位置信息高位数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为速度信息时，应用数据的内容为速度数据，发送终端将速度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为海拔高度信息时，应用数据的内容为海拔高度数据，发送终端将海拔高度数据写入信元体中以作为本变长信元的内容；和/或
变长信元的种类为终端识别码时，应用数据的内容为终端识别码数据，发送终端将终端识别码数据写入信元体中以作为本变长信元的内容。
因此，本发明通过对通信标准中定义的定宽信令帧的数据类型字段和应用数据字段进行扩展，对通信标准中定义的定宽信令帧的数据类型字段和应用数据字段进行扩展定义，可使定宽信令帧的应用数据字段能够承载自定义的不同类型的应用数据，从而优化应用数据的传输格式以节约资源，并提高通信效率以及通信容量。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (17)

  1. 一种应用数据的发送方法，其特征在于，包括：
    发送终端在定宽信令帧中的数据类型字段中写入预设字串，所述预设字串用于定义所要传输的应用数据的类型，并在所述定宽信令帧中的应用数据字段中写入一个或多个变长信元，所述变长信元包括信元头和信元体，所述变长信元承载所述应用数据的内容，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类，从而获得扩展后的定宽信令帧；
    所述发送终端将扩展后的定宽信令帧向接收台发送，使得所述接收台可以通过读取所述数据类型字段获知所述应用数据的类型，并通过读取所述应用数据字段获知所述应用数据的内容。
  2. 根据权利要求1所述的方法，其特征在于，所述应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
  3. 根据权利要求2所述的方法，其特征在于，所述预设字串包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
  4. 根据权利要求3所述的方法，其特征在于，
    所述变长信元的种类为所述位置信息低位子帧时，所述应用数据的内容为位置信息低位数据，所述发送终端将所述位置信息低位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息次低位子帧时，所述应用数据的内容为位置信息次低位数据，所述发送终端将所述位置信息次低位数 据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息次高位子帧时，所述应用数据的内容为位置信息次高位数据，所述发送终端将所述位置信息次高位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息高位子帧时，所述应用数据的内容为位置信息高位数据，所述发送终端将所述位置信息高位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述速度信息时，所述应用数据的内容为速度数据，所述发送终端将所述速度数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述海拔高度信息时，所述应用数据的内容为海拔高度数据，所述发送终端将所述海拔高度数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述终端识别码时，所述应用数据的内容为终端识别码数据，所述发送终端将所述终端识别码数据写入所述信元体中以作为本变长信元的内容。
  5. 一种应用数据的接收方法，其特征在于，包括：
    接收台接收发送终端发送的定宽信令帧；其中所述定宽信令帧的数据类型字段中包含预设字串，所述预设字串用于定义所传输的应用数据的类型，所述定宽信令帧的应用数据字段中包含承载有所述应用数据的内容的一个或多个变长信元，所述变长信元包括信元头和信元体，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类；
    所述接收台读取所述数据类型字段，获知所述应用数据的类型，并读取所述应用数据字段，获知所述应用数据的内容。
  6. 根据权利要求5所述的方法，其特征在于，所述应用数据包括： 环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
  7. 根据权利要求6所述的方法，其特征在于，所述预设字串包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
  8. 根据权利要求7所述的方法，其特征在于，
    所述变长信元的种类为所述位置信息低位子帧时，所述应用数据的内容为位置信息低位数据，所述发送终端将所述位置信息低位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息次低位子帧时，所述应用数据的内容为位置信息次低位数据，所述发送终端将所述位置信息次低位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息次高位子帧时，所述应用数据的内容为位置信息次高位数据，所述发送终端将所述位置信息次高位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述位置信息高位子帧时，所述应用数据的内容为位置信息高位数据，所述发送终端将所述位置信息高位数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述速度信息时，所述应用数据的内容为速度数据，所述发送终端将所述速度数据写入所述信元体中以作为本变长信元的内容；和/或
    所述变长信元的种类为所述海拔高度信息时，所述应用数据的内容为海拔高度数据，所述发送终端将所述海拔高度数据写入所述信元体中 以作为本变长信元的内容；和/或
    所述变长信元的种类为所述终端识别码时，所述应用数据的内容为终端识别码数据，所述发送终端将所述终端识别码数据写入所述信元体中以作为本变长信元的内容。
  9. 一种发送终端，其特征在于，包括：
    定宽信令帧处理模块，用于在定宽信令帧中的数据类型字段中写入预设字串，其中所述预设字串用于定义所要传输的应用数据的类型，并在所述定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中所述变长信元包括信元头和信元体，所述变长信元承载所述应用数据的内容，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类，从而获得扩展后的定宽信令帧；
    发送模块，用于将扩展后的定宽信令帧向接收台发送，使得所述接收台可以通过读取所述数据类型字段获知所述应用数据的类型，并通过读取所述应用数据字段获知所述应用数据的内容。
  10. 根据权利要求9所述的发送终端，其特征在于，所述应用数据包括：环境数据、人体健康数据、专用设备远程控制数据和/或全球通用定位信息应用数据。
  11. 根据权利要求10所述的发送终端，其特征在于，所述预设字串包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
  12. 一种接收台，其特征在于，包括：
    接收模块，用于接收发送终端发送的定宽信令帧；其中所述定宽信令帧的数据类型字段中包含预设字串，所述预设字串用于定义所传输的 应用数据的类型，所述定宽信令帧的应用数据字段中包含承载有所述应用数据的内容的一个或多个变长信元，所述变长信元包括信元头和信元体，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类；
    数据读取模块，用于读取所述数据类型字段，获知所述应用数据的类型，并读取所述应用数据字段，获知所述应用数据的内容。
  13. 根据权利要求12所述的接收台，其特征在于，所述预设字串包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
  14. 一种发送终端，其特征在于，包括至少一个处理器、至少一个无线网络接口、存储器、和至少一个通信总线，所述存储器用于存储程序指令，所述处理器，用于：
    执行所述程序指令以对定宽信令帧中的数据类型字段中写入预设字串，其中所述预设字串用于定义所要传输的应用数据的类型，并在所述定宽信令帧中的应用数据字段中写入一个或多个变长信元，其中所述变长信元包括信元头和信元体，所述变长信元承载所述应用数据的内容，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类，从而获得扩展后的定宽信令帧；
    执行所述程序指令以通过所述无线网络接口将扩展后的定宽信令帧向接收台发送，使得所述接收台可以通过读取所述数据类型字段获知所述应用数据的类型，并通过读取所述应用数据字段获知所述应用数据的内容。
  15. 根据权利要求14所述的发送终端，其特征在于，所述预设字串 包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
  16. 一种接收台，其特征在于，包括：至少一个处理器、至少一个无线网络接口、存储器、和至少一个通信总线，所述存储器用于存储程序指令，所述处理器，用于：
    执行所述程序指令以接收发送终端发送的定宽信令帧；其中所述定宽信令帧的数据类型字段中包含预设字串，所述预设字串用于定义所传输的应用数据的类型，所述定宽信令帧的应用数据字段中包含承载有所述应用数据的内容的一个或多个变长信元，所述变长信元包括信元头和信元体，所述信元头中包含信元头标识，所述信元头标识表示所述变长信元的种类；
    执行所述程序指令以读取所述数据类型字段，获知所述应用数据的类型，并读取所述应用数据字段，获知所述应用数据的内容。
  17. 根据权利要求16所述的接收台，其特征在于，所述预设字串包括第一字串，在所述预设字串为所述第一字串时，所述应用数据的类型为全球通用定位信息应用数据，所述变长信元的种类包括位置信息低位子帧、位置信息次低位子帧、位置信息次高位子帧、位置信息高位子帧、速度信息、海拔高度信息和/或终端识别码。
PCT/CN2016/090218 2015-07-16 2016-07-15 发送终端、接收台及应用数据的发送和接收方法 Ceased WO2017008765A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510418955 2015-07-16
CN201510418955.3 2015-07-16

Publications (1)

Publication Number Publication Date
WO2017008765A1 true WO2017008765A1 (zh) 2017-01-19

Family

ID=57756695

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/090218 Ceased WO2017008765A1 (zh) 2015-07-16 2016-07-15 发送终端、接收台及应用数据的发送和接收方法

Country Status (1)

Country Link
WO (1) WO2017008765A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400720B1 (en) * 1999-06-21 2002-06-04 General Instrument Corporation Method for transporting variable length and fixed length packets in a standard digital transmission frame
CN102237948A (zh) * 2010-04-22 2011-11-09 华为终端有限公司 一种业务数据的发送、接收方法和装置
CN102868514A (zh) * 2012-08-30 2013-01-09 北京久华信信息技术有限公司 一种时分双工通信系统无线传输方法
CN103002404A (zh) * 2012-12-17 2013-03-27 海能达通信股份有限公司 一种dmr基站、无线接入网及宽带多媒体集群通信系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400720B1 (en) * 1999-06-21 2002-06-04 General Instrument Corporation Method for transporting variable length and fixed length packets in a standard digital transmission frame
CN102237948A (zh) * 2010-04-22 2011-11-09 华为终端有限公司 一种业务数据的发送、接收方法和装置
CN102868514A (zh) * 2012-08-30 2013-01-09 北京久华信信息技术有限公司 一种时分双工通信系统无线传输方法
CN103002404A (zh) * 2012-12-17 2013-03-27 海能达通信股份有限公司 一种dmr基站、无线接入网及宽带多媒体集群通信系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ETSI.: "Electromagnetic Compatibility and Radio Spectrum Matters (ERM); Digital Mobile Radio (DMR) Systems; Part 4: DMR Trunking Protocol; ETSI TS 102 361-4 V1.5.1", ETSI TECHNICAL SPECIFICATION, 28 February 2013 (2013-02-28) *

Similar Documents

Publication Publication Date Title
CN101588227B (zh) 执行缓存器状态回报的方法及其通信装置
CN105264998B (zh) 无精确定时的组轮询机制
CN111867118B (zh) 一种资源调度的方法及通信装置
CN101478777A (zh) 执行寄存器状态回报的方法及其通讯装置
CN109792727B (zh) 通信方法、终端和网络设备
JP2022506735A (ja) データ伝送方法及び通信装置
CN109561464A (zh) 一种上报缓存状态和分配资源的方法及设备
CN113508608B (zh) 下行控制信息传输方法及装置、通信设备及存储介质
CN101437023A (zh) 无线通讯装置、可被该装置识别的指令集及其操作方法
WO2018228379A1 (zh) 一种数据接收方法、相关设备及系统
CN115702581A (zh) 用于无线通信的电子设备和方法、计算机可读存储介质
CN111213430A (zh) 基站设备以及用于发送数据和信号的方法
WO2021143426A1 (zh) 编码方法及装置、调制编码方法及装置、设备、存储介质
CN108024355A (zh) 一种下行控制信息的指示方法、装置及通信系统
EP3567826A1 (en) Data transmission method and device, transmitting terminal, receiving terminal, and system
CN105827299B (zh) 用于射频中继的系统和方法
CN111857606A (zh) 数据存储方法、装置、计算机设备以及存储介质
WO2017008765A1 (zh) 发送终端、接收台及应用数据的发送和接收方法
KR20180065612A (ko) 서버 및 서버에 의해 수행되는 무선 통신 네트워크의 제어 방법
WO2024125498A1 (zh) 模型更新方法、装置、设备及存储介质
WO2023226728A1 (zh) 通信方法和装置
KR102906818B1 (ko) 사이드링크 통신에서 업링크 슬롯 수 동기화 방법 및 장치
EP4012964B1 (en) Electronic apparatuses for wireless communications
CN110351003A (zh) 确定传输块大小的方法和通信装置
CN118555671A (zh) 信息传输的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16823911

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16823911

Country of ref document: EP

Kind code of ref document: A1