CN101110631A - Method for transmitting data between communication units in communication system and device thereof - Google Patents
Method for transmitting data between communication units in communication system and device thereof Download PDFInfo
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- CN101110631A CN101110631A CNA2006100888333A CN200610088833A CN101110631A CN 101110631 A CN101110631 A CN 101110631A CN A2006100888333 A CNA2006100888333 A CN A2006100888333A CN 200610088833 A CN200610088833 A CN 200610088833A CN 101110631 A CN101110631 A CN 101110631A
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Abstract
The present invention discloses a method and a device to realize data transmission amongst communication units of a communication system. The method includes procedures below: A transmission terminal maps control data to basic frames corresponding to a time-sharing duplex-code division multiple access frame time slot and maps service data to basic frames corresponding to all time slots except for fixed time slots. In addition, the basic frames are reused to each time slot and transmitted to a receiving terminal. The receiving terminal restores the control data from the basic frames in correspondence with the fixed time slot of the time-sharing duplex-code division multiple access frames and recovers the service data from the basic frames in accordance with all time slots except for the fixed time slots. Besides, the present invention the present invention discloses a data transmission device and a data receiving device.
Description
Technical field
The present invention relates to the mobile communication technology field, be meant in the communication system method and apparatus of transfer of data between the communication unit especially.
Background technology
In existing mobile communications system, the base station mainly is divided into two classes: centralized base station systems and distributed base station system.
Baseband processing unit, clock and parts such as lock unit and RF processing unit concentrate in together in the centralized base station systems, constitute integrated integral system.In this system, baseband processing unit and RF processing unit are adjacent, business datum between baseband processing unit and the RF processing unit and operation maintenance data (O﹠amp; M, Operation ﹠amp; Maintenance) transmit by independent link respectively.Wherein, O﹠amp; The M data are control data.
But in distributed base station system, the base station is made up of base station main equipment and a plurality of Remote Radio Unit.Baseband processing unit, clock and lock unit are placed in the middle of the main equipment of base station, and RF processing unit zooms out other place by the transmission link that media such as optical fiber or cable constitute, and the RF processing unit after zooming out is also referred to as Remote Radio Unit.Between Remote Radio Unit and baseband processing unit, business datum, O﹠amp; The M data zoom out in the data link at one by time-multiplexed mode to be transmitted.
In the middle of more existing distributed base station systems, baseband processing unit and Remote Radio Unit carry out transfer of data by the link of common public radio interface (CPRI, Common Public Radio Interface) standard.Wherein, according to CPRI standard, O﹠amp; The transmission of M data is to realize by the mode that is inserted into assigned address with this cycle data.
In the CPRI standard, the basic frame structure of CPRI is referring to Fig. 1, is example with the wire rate of 1228.8Mbit/S, and the basic frame duration of CPRI is 260.42ns, is made up of 16 words, and wherein each word comprises 16bit, is least-significant byte when Y equals zero, and it is most-significant byte that Y equals at 1 o'clock.Under the normal condition, the position of the 1st word is a control word, is used to send control data, promptly sends O﹠amp; M data, remaining word are business datum.The constituent relation of basic frame and superframe is that per 256 basic frames are formed a superframe, and basic frame number (BFN, Base Frame Number) excursion is 0 to 255.Wherein, O﹠amp; The timesharing of M data is added in each basic frame in first control word.
Above-mentioned transmission means, because business datum and control data transmit in same frame, the increase of control data can take the bandwidth of business datum, and the increase of business datum can take the bandwidth of control data, thereby causes business datum and control data influencing each other in transmission.
Summary of the invention
In view of this, the invention reside in the method and apparatus of transfer of data between the communication unit is provided in the communication system.By the business datum between the particular time-slot structure allocate communications unit of TD-SCDMA frame and the bandwidth of control data transmission, solve in the present communication system radio frequency unit and zooming out between back and the baseband processing unit interactive problem on business datum and the control data transmission bandwidth.
The invention provides the method that data send between the communication unit in a kind of communication system, comprising:
Transmitting terminal is mapped to control data in the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot, described basic frame is multiplexed on each time slot is sent to receiving terminal.
Wherein, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
Wherein, described basic frame comprises that the control word number is the 3rd set point;
Basic frame by the second set point number constitutes wireless sub-frame;
Described wireless sub-frame cycle period is that first set point and frame length equal time division duplex-S-CDMA frame frame length.
Wherein, described being mapped to comprises before the pairing basic frame:
Transmitting terminal determines when the control word numbering equals the 4th set point in the basic frame, synchrodata is mapped to described control word numbering to be equaled in the control word of the 4th set point, when control word numbering in the basic frame equals the 5th set point, the frame number of described basic frame and the pairing wireless sub-frame frame number of described basic frame are mapped to described control word numbering equal in the control word of the 5th set point.
Wherein, described control data is mapped to fixedly in the pairing basic frame of ascending time slot, business datum is mapped in the pairing basic frame of each time slot except that described fixedly ascending time slot, comprising:
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the corresponding protection of described basic frame number is at interval when time slot, uplink pilot time slot, the first conventional time slot, the control data order is mapped in the described basic frame control word numbers in the pairing control word;
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and during the conventional time slot of corresponding the 0th conventional time slot of basic frame number, descending pilot frequency time slot, the second conventional time slot to the six, the business datum order is mapped in the described basic frame control word numbers in the pairing control word.
Wherein, described control data is mapped to fixedly in the pairing basic frame of descending time slot, business datum is mapped in the pairing basic frame of each time slot except that described fixedly descending time slot, with described basic frame multiplexing comprising:
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the corresponding descending pilot frequency time slot of the basic frame number of institute, the 0th conventional time slot, the control data order is mapped in the described basic frame control word numbers in the pairing control word;
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the corresponding protection of basic frame number is at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, the business datum order is mapped in the described basic frame control word numbers in the pairing control word.
The invention provides in a kind of communication system the method for Data Receiving between the communication unit, comprising:
Receiving terminal recovers control data from the pairing basic frame of the fixedly time slot of time division duplex-S-CDMA frame, recover business datum from the pairing basic frame of each time slot except that described fixedly time slot.
Wherein, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
Wherein, described basic frame comprises that the control word number is the 3rd set point;
Basic frame by the second set point number constitutes wireless sub-frame;
Described wireless sub-frame cycle period is that first set point and frame length equal time division duplex-S-CDMA frame frame length.
Wherein, describedly from basic frame, comprise before the restore data:
Receiving terminal is obtained and when receiving data synchronization, generation control word numbering is also differentiated, when the control word numbering equals the 4th set point in the basic frame, from equaling the control word of the 4th set point, described control word numbering recovers synchrodata, when the control word numbering equals the 5th set point in the basic frame, number frame number and the pairing wireless sub-frame frame number of described basic frame that recovers described basic frame the control word that equals the 5th set point from described control word.
Wherein,, from the pairing basic frame of each time slot except that described fixedly ascending time slot, recover business datum, comprising from fixedly recovering control data the pairing basic frame of ascending time slot:
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and the corresponding protection of basic frame number is at interval when time slot, uplink pilot time slot, the first conventional time slot, and control word numbers that order recovery goes out control data in the pairing control word from described basic frame;
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and during the conventional time slot of corresponding the 0th conventional time slot of basic frame number, descending pilot frequency time slot, the second conventional time slot to the six, control word numbers that order recovery goes out business datum in the pairing control word from described basic frame.
Wherein,, from the pairing basic frame of each time slot except that described fixedly descending time slot, recover business datum, comprising from fixedly recovering control data the pairing basic frame of descending time slot:
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and when the corresponding descending pilot frequency time slot of basic frame number, the 0th conventional time slot, control word numbers that order recovery goes out control data in the pairing control word from described basic frame;
Be not equal to the 4th set point and be not equal to the 5th set point and the corresponding protection of basic frame number at interval when time slot, uplink pilot time slot, first conventional time slot to the six conventional time slots when receiving terminal determines in the basic frame control word numbering, control word numbers that order recovery goes out business datum in the pairing control word from described basic frame.
The present invention also provides a kind of transmitting terminal, comprising:
Sending controling unit is used for business datum and control data are sent to Multiplexing Unit, and the data after multiplexing are sent to receiving terminal;
Multiplexing Unit, be used for control data is mapped to the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot, described basic frame is multiplexed on each time slot is sent to sending controling unit.
Wherein, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
Wherein, described Multiplexing Unit also is used to circulate, and to generate number be the wireless sub-frame frame number of first set point;
Described Multiplexing Unit also comprises:
Basic frame generation unit, being used to each wireless sub-frame to generate number is the basic frame number of second set point;
The control word generation unit is used to each basic frame to generate the control word numbering that number is the 3rd set point.
Wherein, described Multiplexing Unit also comprises:
The control word judgement unit is used to differentiate the control word numbering that the control word generation unit generates;
When the control word judgement unit determines in the basic frame control word numbering when equaling the 4th set point, described Multiplexing Unit is used for that synchrodata is mapped to described control word numbering and equals in the control word of the 4th set point;
When the control word judgement unit determines in the basic frame control word numbering when equaling the 5th set point, described Multiplexing Unit is used for the basic frame frame number that basic frame generation unit is generated and the pairing wireless sub-frame frame number of described basic frame that generates and is mapped to described control word numbering and equals in the control word of the 5th set point.
Wherein, described Multiplexing Unit also comprises:
The basic up judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of ascending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the basic up judgement unit of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described Multiplexing Unit is used for that the control data order is mapped to described basic frame control word and numbers in the pairing control word;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly ascending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic up judgement unit of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described Multiplexing Unit was used for that the business datum order is multiplexed into described basic frame control word and numbers in the pairing control word.
Wherein, described Multiplexing Unit also comprises:
The basic descending judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of descending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic descending judgement unit of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described Multiplexing Unit was used for that the control data order is mapped to described basic frame control word and numbers in the pairing time slot;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly descending time slot; the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the basic descending judgement unit of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described Multiplexing Unit is used for that the business datum order is mapped to described basic frame control word and numbers in the pairing control word.
The present invention also provides a kind of receiving terminal, comprising:
Receive control unit, the data that are used for receiving are sent to demultiplexing unit;
Demultiplexing unit is used for recovering control data from the pairing basic frame of the fixedly time slot of time division duplex frame-S-CDMA frame, recovers business datum from the pairing basic frame of each time slot except that described fixedly time slot.
Wherein, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
Wherein, described demultiplexing unit also comprises:
The control word generation unit, being used to each basic frame to generate number is the 3rd set point control word numbering; Described demultiplexing unit is used for numbering the pairing control word from each basic frame control word and recovers data.
Wherein, described demultiplexing unit also comprises:
Lock unit is used for obtaining synchronously from the data that receive;
The control word judgement unit is used to differentiate the control word numbering that the control word generation unit generates;
After lock unit is obtained synchronously from the data that receive, the control word generation unit generates the control word numbering, the control word judgement unit determines control word and numbers when equaling the 4th set point, described demultiplexing unit is used for recovering synchrodata from the control word that described control word numbering equals the 4th set point, when the control word numbering equaled the 5th set point, described demultiplexing unit was used for recovering from the control word that described control word numbering equals the 5th set point the frame number and the pairing wireless sub-frame frame number of described basic frame of described basic frame.
Wherein, described demultiplexing unit also comprises:
The basic up judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When from fixedly recovering control data the pairing basic frame of ascending time slot, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the basic up judgement unit of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described demultiplexing unit is used for numbering from described basic frame control word that order recovery goes out control data the pairing control word;
When from the pairing basic frame of each time slot except that described fixedly ascending time slot, recovering business datum, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic up judgement unit of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described demultiplexing unit was used for numbering from described basic frame control word that order recovery goes out business datum in the pairing control word.
Wherein, described demultiplexing unit also comprises:
The basic descending judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When from fixedly recovering control data the pairing basic frame of descending time slot, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic descending judgement unit of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described demultiplexing unit was used for numbering from described basic frame control word that order recovery goes out control data in the pairing control word;
When restore data from the pairing basic frame of each time slot except that described fixedly descending time slot; the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the basic descending judgement unit of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described demultiplexing unit is used for numbering from described basic frame control word that the order demultiplexing goes out business datum in the pairing control word.
Method and apparatus of the present invention, by the business datum between the particular time-slot structure allocate communications unit of TD-SCDMA frame and the bandwidth of control data transmission, realize that radio frequency unit in the TD-SCDMA system zooms out the transmission of business datum and control data between back and the baseband processing unit, because business datum takies different time slots with control data, can be according to time flexible transmission bandwidth, the transmission bandwidth between business datum and the control data can not interact.
Description of drawings
Fig. 1 is that the CPRI frame structure is formed schematic diagram;
Fig. 2 is the corresponding relation schematic diagram of basic frame and TD-SCDMA frame slot in the inventive method;
Fig. 3 is that basic frame is formed schematic diagram in the inventive method;
Fig. 4 is the transmission flow figure of the inventive method;
To be the inventive method send the schematic diagram of the basic frame that contains control data at fixing ascending time slot to Fig. 5;
To be the inventive method send the schematic diagram of the basic frame that contains control data at fixing descending time slot to Fig. 6;
Fig. 7 is a dispensing device schematic diagram of the present invention;
Fig. 8 is a receiving system schematic diagram of the present invention.
Embodiment
Method of the present invention sends the basic frame that contains business datum or control data by the particular time-slot structure in time division duplex-S-CDMA between the communication unit in communication system.Time division duplex-S-CDMA (TD-SCDMA; Time Division-SynchronousCode Division Multiple Access) structure of time slot of frame is referring to Fig. 2; comprise time slot TS0 (Time Slot) in the frame structure of TD-SCDMA to TS6 totally 7 conventional time slots, 3 special time slots are respectively uplink pilot time slot, protection time slot, descending pilot frequency time slot at interval.Wherein, TS0 and descending pilot frequency time slot are fixing descending time slots, and protection time slot, uplink pilot time slot and TS1 at interval is fixing ascending time slot.
In the method for the present invention, the frame length of each wireless sub-frame is 5ms, equals the TD-SCDMA frame length, and it is second set point that each wireless sub-frame comprises basic frame number, and second set point is 200 among the following stated embodiment, and the scope of basic frame frame number is 0 to 199.Basic frame is formed schematic diagram referring to Fig. 3,200 basic frames constitute a wireless sub-frame, the cycle period of wireless sub-frame is first set point, first set point is 16 among the following stated embodiment, and per 16 wireless sub-frame (SFN, Sub Frame Number) constitute a superframe, the frame number scope of wireless sub-frame is 0 to 15.The control word number that each basic frame comprises is the 3rd set point, and the 3rd set point is 1536 among the following stated embodiment, and control word is numbered 0 to 1535, is example with the 1228.8Mbit/S linear velocity, and each control word comprises 16 bits.In the communication system between the communication unit by control word numbering and basic frame frame number with the fixedly slot transmission of control data at corresponding TD-SCDMA frame, with business datum in each slot transmission except that fixing time slot.
Referring to Fig. 4, the method that data of the present invention send comprises:
Step S401: transmitting terminal is mapped to control data in the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, and business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot;
Step S402: described basic frame is multiplexed on each time slot is sent to receiving terminal.
Receiving terminal recovers control data from the pairing basic frame of the fixedly time slot of time division duplex-S-CDMA frame after receiving data, recover business datum from the pairing basic frame of each time slot except that described fixedly time slot.
Now with baseband processing unit in the base station system of TD-SCDMA system and the communication between the RF processing unit after zooming out be example, the method that is described in detail between baseband processing unit and the RF processing unit how application invention is carried out transfer of data.
Baseband processing unit transmitting control data in the fixing pairing basic frame of ascending time slot in base station system; promptly at protection transmitting control data in time slot, uplink pilot time slot and the pairing basic frame of TS1 at interval; at TS2 to TS6, TS0 and the pairing basic frame service data transmission of descending pilot frequency time slot; the basic frame that will comprise business datum or control data is sent to RF processing unit; RF processing unit obtains control data or business datum in the basic frame of corresponding time slot after receiving data.
RF processing unit is transmitting control data in the fixing pairing basic frame of descending time slot; i.e. transmitting control data in descending pilot frequency time slot, the pairing basic frame of TS0; service data transmission in TS1 to TS6, protection interval time slot, the pairing basic frame of uplink pilot time slot; the basic frame that will contain business datum or control data is sent to baseband processing unit; baseband processing unit obtains control data or business datum in the basic frame of corresponding time slot after receiving data.
Describe baseband processing unit sends data and process from radio frequency unit reception data to RF processing unit below in detail.Baseband processing unit is when sending control data and business datum, comprise 200 basic frames in each wireless sub-frame that generates, the control word that control word is numbered the 4th set point in the basic frame is used to send synchrodata, the control word that control word is numbered the 5th set point is used to send frame number, in following embodiment, the 4th set point is that 0, the five set point is 1.Each control word numbering in each the basic frame that generates is differentiated, when the control word numbering equals 0, synchrodata is mapped to control word numbering to be equaled in 0 the control word, when the control word numbering equals 1, the frame number of this basic frame of generating is mapped to this control word numbering to be equaled in 1 the control word, bit with least-significant byte represents, the pairing wireless sub-frame frame number of this basic frame that generates is mapped to the control word numbering equals to represent with the bit of most-significant byte in 1 the control word.
When the control word of basic frame numbering is not equal to 0 and when being not equal to 1, promptly equal in 2 to 1535 any one, baseband processing unit is differentiated this basic frame frame number.Referring to Fig. 5, because fixedly the basic frame frame number of ascending time slot correspondence is 30 to 64, so when determining basic frame frame number when equaling in 30 to 64 the scope any one, control data is mapped in this basic frame control word numbers in the pairing control word; The basic frame frame number of TS2 to TS6 time slot correspondence is 65 to 199, the basic frame frame number of TS0, descending pilot frequency time slot correspondence is 0 to 29, when determining basic frame frame number when equaling in 0 to 29 or 65 to 199 the scope any one, business datum is mapped in this basic frame control word numbers in the pairing control word.
Data after multiplexing are through line coding and also string conversion, undertaken sending to RF processing unit after the electric light conversion by optical-electrical converter, the optical-electrical converter of RF processing unit carries out opto-electronic conversion after receiving data, data after the conversion are gone here and there and conversion and line decoding, and demultiplexing goes out control data or business datum again.The process of demultiplexing is as follows:
After the data sync after RF processing unit is obtained and changed, generating the control word numbering differentiates, when the control word numbering equals 0, the control word numbering equals to recover synchrodata in the 0 pairing control word from data, when control word numbering equaled 1, the control word numbering equaled to recover basic frame frame number and wireless sub-frame frame number in 1 the control word from data.
When the control word of basic frame numbering is not equal to 0 and when being not equal to 1, promptly equal in 2 to 1535 any one, RF processing unit is differentiated the frame number of this basic frame of recovering, in the frame number that determines basic frame equals 30 to 64 scope any one the time, from then on control word is numbered in the pairing control word and is recovered control data; When the frame number that determines basic frame equaled in 0 to 29 or 65 to 199 the scope any one, control word was numbered in the pairing control word and is recovered business datum in the from then on basic frame.
The above sends data for baseband processing unit, and RF processing unit receives the process of data, describes RF processing unit below in detail and sends data, and baseband processing unit receives the process of data.
RF processing unit is when sending control data and business datum, comprise 200 basic frames in each wireless sub-frame that generates, each control word numbering in each the basic frame that generates is differentiated, when the control word numbering equals 0, synchrodata is mapped to control word numbering to be equaled in 0 the control word, when the control word numbering equals 1, the frame number of this basic frame of generating is mapped to the control word numbering to be equaled in 1 the control word, bit with least-significant byte is represented, the pairing wireless sub-frame frame number of this basic frame that generates is mapped to the control word numbering to be equaled to represent with the bit of most-significant byte in 1 the control word.
When the control word of basic frame numbering is not equal to 0 and when being not equal to 1, promptly equal in 2 to 1535 any one, RF processing unit is differentiated this basic frame frame number.Referring to Fig. 6, because fixedly the basic frame frame number of descending time slot correspondence is 0 to 29, so when determining basic frame frame number when equaling in 0 to 29 the scope any one, control data is mapped in this basic frame control word numbers in the pairing control word; The protection basic frame frame number of time slot, uplink pilot time slot correspondence at interval is 30 to 37; the basic frame frame number of TS1 to TS6 time slot correspondence is 38 to 199; when determining basic frame frame number when equaling in 30 to 199 the scope any one, business datum is mapped in this basic frame control word numbers in the pairing control word.
Data after multiplexing are through line coding and also string conversion, undertaken sending to baseband processing unit after the electric light conversion by optical-electrical converter, the optical-electrical converter of baseband processing unit carries out opto-electronic conversion after receiving data, data after the conversion are gone here and there and conversion and line decoding, and demultiplexing goes out control data or business datum again.The process of demultiplexing is as follows:
After the data sync after baseband processing unit is obtained and changed, generating the control word numbering differentiates, when the control word numbering equals 0, control word numbering equals that demultiplexing goes out synchrodata in the 0 pairing control word from data, when control word numbering equaled 1, the control word numbering equaled that demultiplexing goes out basic frame frame number and wireless sub-frame frame number in 1 the control word from data.
When the control word of basic frame numbering is not equal to 0 and when being not equal to 1, promptly equal in 2 to 1535 any one, baseband processing unit is differentiated the frame number of this basic frame of recovering, in the frame number that determines basic frame equals 0 to 29 scope any one the time, control word is numbered in the pairing control word and is recovered control data in the from then on basic frame; In the frame number that determines basic frame equals 30 to 199 scope any one the time, control word is numbered in the pairing control word and is recovered business datum in the from then on basic frame.
Because business datum takies different time slots with control data, can be according to time flexible transmission bandwidth, the transmission between business datum and the control data can not interact, for the bandwidth of control data or business datum flexible as required.
The present invention also provides a kind of transmitting terminal and a kind of receiving terminal.
Referring to Fig. 7, transmitting terminal of the present invention comprises: sending controling unit 701, Multiplexing Unit 702;
Sending controling unit 701 is used for business datum and control data are sent to Multiplexing Unit 702, and the data after multiplexing are sent to receiving terminal;
Multiplexing Unit 702, be used for control data is mapped to the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot, described basic frame is multiplexed into is sent to sending controling unit 701 on each time slot.
Fixedly time slot described in the above-mentioned transmitting terminal is fixedly ascending time slot or fixedly descending time slot.
Also to be used to generate cycle period be 16 wireless sub-frame frame number to Multiplexing Unit in the transmitting terminal of the present invention;
Multiplexing Unit 702 also can add basic frame generation unit 703, control word generation unit 704 in the transmitting terminal of the present invention;
Basic frame generation unit 703, being used to each wireless sub-frame to generate number is 200 basic frame number;
Control word generation unit 704, being used to each basic frame to generate number is 1536 control word numbering.
The Multiplexing Unit 702 of transmitting terminal of the present invention also can add control word judgement unit 705;
Control word judgement unit 705 is used to differentiate the control word numbering that control word generation unit 704 generates;
When control word judgement unit 705 determines in the basic frame control word numbering when equaling 0, described Multiplexing Unit 702 is used for that synchrodata is mapped to described control word numbering and equals in 0 the control word;
When control word judgement unit 705 determines in the basic frame control word numbering when equaling 1, described Multiplexing Unit 702 is used for the basic frame frame number that basic frame generation unit 703 is generated and the pairing wireless sub-frame frame number of described basic frame that generates and is mapped to described control word numbering and equals in 1 the control word.
The Multiplexing Unit of transmitting terminal of the present invention also can add the up judgement unit 706 of basic frame;
The basic up judgement unit 706 of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of ascending time slot, control word judgement unit 705 determines in the described basic frame control word numbering and is not equal to 0 and be not equal to 1, and the basic up judgement unit 706 of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described Multiplexing Unit 702 is used for that the control data order is mapped to described basic frame control word and numbers in the pairing control word;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly ascending time slot, control word judgement unit 705 determines in the described basic frame control word numbering and is not equal to 0 and be not equal to 1, and when the basic up judgement unit 706 of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described Multiplexing Unit 702 was used for that the business datum order is multiplexed into described basic frame control word and numbers in the pairing control word.
The Multiplexing Unit of transmitting terminal of the present invention also can add the descending judgement unit 707 of basic frame;
The basic descending judgement unit 707 of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of descending time slot, control word judgement unit 705 determines in the described basic frame control word numbering and is not equal to 0 and be not equal to 1, and when the basic descending judgement unit 707 of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described Multiplexing Unit 702 was used for that the control data order is mapped to described basic frame control word and numbers in the pairing time slot;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly descending time slot; control word judgement unit 705 determines in the described basic frame control word numbering and is not equal to 0 and be not equal to 1; and the basic descending judgement unit 707 of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described Multiplexing Unit 702 is used for that the business datum order is mapped to described basic frame control word and numbers in the pairing control word.
Referring to Fig. 8, receiving terminal of the present invention comprises: receive control unit 801, demultiplexing unit 802;
Receive control unit 801, the data that are used for receiving are sent to demultiplexing unit 802;
Fixedly time slot described in the above-mentioned receiving terminal is fixedly ascending time slot or fixedly descending time slot.
The demultiplexing unit 802 of receiving terminal of the present invention also can add control word generation unit 803;
Control word generation unit 803, being used to each basic frame to generate number is 1536 control word numbering; Described demultiplexing unit 802 is used for numbering the pairing control word from each basic frame control word and recovers data.
The demultiplexing unit of receiving terminal of the present invention also can add lock unit 804, control word judgement unit 805;
Control word judgement unit 805 is used to differentiate the control word numbering that the control word generation unit generates;
After lock unit 804 is obtained synchronously from the data that receive, control word generation unit 803 generates the control word numbering, control word judgement unit 805 determines the control word numbering and equals at 0 o'clock, described demultiplexing unit 802 is used for equaling 0 control word from described control word numbering and recovers synchrodata, when control word numbering equaled 1, described demultiplexing unit was used for equaling frame number and the pairing wireless sub-frame frame number of described basic frame that 1 control word recovers described basic frame from described control word numbering.
The demultiplexing unit of receiving terminal of the present invention also can add the up judgement unit 806 of basic frame;
The basic up judgement unit 806 of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When from fixedly recovering control data the pairing basic frame of ascending time slot, control word judgement unit 805 determines control word numbering and is not equal to 0 and be not equal to 1, and the basic up judgement unit 806 of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described demultiplexing unit 802 is used for numbering from described basic frame control word that order recovery goes out control data the pairing control word;
When from the pairing basic frame of each time slot except that described fixedly ascending time slot, recovering business datum, control word judgement unit 805 determines control word numbering and is not equal to 0 and be not equal to 1, and when the basic up judgement unit 806 of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described demultiplexing unit 802 was used for numbering from described basic frame control word that order recovery goes out business datum in the pairing control word.
The demultiplexing unit of receiving terminal of the present invention also can add the descending judgement unit 807 of basic frame;
The basic descending judgement unit 807 of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When restore data from the fixing pairing basic frame of descending time slot, control word judgement unit 805 determines control word numbering and is not equal to 0 and be not equal to 1, and when the basic descending judgement unit 807 of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described demultiplexing unit 802 was used for numbering from described basic frame control word that order recovery goes out control data in the pairing control word;
When restore data from the pairing basic frame of each time slot except that described fixedly descending time slot; the control word judgement unit determines control word numbering and is not equal to 0 and be not equal to 1; and the basic descending judgement unit 807 of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described demultiplexing unit is used for numbering from described basic frame control word that the order demultiplexing goes out business datum in the pairing control word.
For method and apparatus of the present invention, within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. the method that data send between the communication unit in the communication system is characterized in that, comprising:
Transmitting terminal is mapped to control data in the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot, described basic frame is multiplexed on each time slot is sent to receiving terminal.
2. method according to claim 1 is characterized in that, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
3. method according to claim 2 is characterized in that, described basic frame comprises that the control word number is the 3rd set point;
Basic frame by the second set point number constitutes wireless sub-frame;
Described wireless sub-frame cycle period is that first set point and frame length equal time division duplex-S-CDMA frame frame length.
4. method according to claim 3 is characterized in that, described being mapped to comprises before the pairing basic frame:
Transmitting terminal determines when the control word numbering equals the 4th set point in the basic frame, synchrodata is mapped to described control word numbering to be equaled in the control word of the 4th set point, when control word numbering in the basic frame equals the 5th set point, the frame number of described basic frame and the pairing wireless sub-frame frame number of described basic frame are mapped to described control word numbering equal in the control word of the 5th set point.
5. method according to claim 4 is characterized in that, described control data is mapped to fixedly in the pairing basic frame of ascending time slot, and business datum is mapped in the pairing basic frame of each time slot except that described fixedly ascending time slot, comprising:
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the corresponding protection of described basic frame number is at interval when time slot, uplink pilot time slot, the first conventional time slot, the control data order is mapped in the described basic frame control word numbers in the pairing control word;
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and during the conventional time slot of corresponding the 0th conventional time slot of basic frame number, descending pilot frequency time slot, the second conventional time slot to the six, the business datum order is mapped in the described basic frame control word numbers in the pairing control word.
6. method according to claim 4, it is characterized in that, described control data is mapped to fixedly in the pairing basic frame of descending time slot, business datum is mapped in the pairing basic frame of each time slot except that described fixedly descending time slot, with described basic frame multiplexing comprising:
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the corresponding descending pilot frequency time slot of the basic frame number of institute, the 0th conventional time slot, the control data order is mapped in the described basic frame control word numbers in the pairing control word;
Transmitting terminal determines in the basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the corresponding protection of basic frame number is at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, the business datum order is mapped in the described basic frame control word numbers in the pairing control word.
7. the method for Data Receiving between the communication unit in the communication system is characterized in that, comprising:
Receiving terminal recovers control data from the pairing basic frame of the fixedly time slot of time division duplex-S-CDMA frame, recover business datum from the pairing basic frame of each time slot except that described fixedly time slot.
8. method according to claim 7 is characterized in that, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
9. method according to claim 8 is characterized in that, described basic frame comprises that the control word number is the 3rd set point;
Basic frame by the second set point number constitutes wireless sub-frame;
Described wireless sub-frame cycle period is that first set point and frame length equal time division duplex-S-CDMA frame frame length.
10. method according to claim 9 is characterized in that, describedly comprises before the restore data from basic frame:
Receiving terminal is obtained and when receiving data synchronization, generation control word numbering is also differentiated, when the control word numbering equals the 4th set point in the basic frame, from equaling the control word of the 4th set point, described control word numbering recovers synchrodata, when the control word numbering equals the 5th set point in the basic frame, number frame number and the pairing wireless sub-frame frame number of described basic frame that recovers described basic frame the control word that equals the 5th set point from described control word.
11. method according to claim 10 is characterized in that, from fixedly recovering control data the pairing basic frame of ascending time slot, recovers business datum from the pairing basic frame of each time slot except that described fixedly ascending time slot, comprising:
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and the corresponding protection of basic frame number is at interval when time slot, uplink pilot time slot, the first conventional time slot, and control word numbers that order recovery goes out control data in the pairing control word from described basic frame;
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and during the conventional time slot of corresponding the 0th conventional time slot of basic frame number, descending pilot frequency time slot, the second conventional time slot to the six, control word numbers that order recovery goes out business datum in the pairing control word from described basic frame.
12. method according to claim 10 is characterized in that, from fixedly recovering control data the pairing basic frame of descending time slot, recovers business datum from the pairing basic frame of each time slot except that described fixedly descending time slot, comprising:
The control word numbering is not equal to the 4th set point and is not equal to the 5th set point in the basic frame when receiving terminal determines, and when the corresponding descending pilot frequency time slot of basic frame number, the 0th conventional time slot, control word numbers that order recovery goes out control data in the pairing control word from described basic frame;
Be not equal to the 4th set point and be not equal to the 5th set point and the corresponding protection of basic frame number at interval when time slot, uplink pilot time slot, first conventional time slot to the six conventional time slots when receiving terminal determines in the basic frame control word numbering, control word numbers that order recovery goes out business datum in the pairing control word from described basic frame.
13. a transmitting terminal is characterized in that, comprising:
Sending controling unit is used for business datum and control data are sent to Multiplexing Unit, and the data after multiplexing are sent to receiving terminal;
Multiplexing Unit, be used for control data is mapped to the pairing basic frame of fixedly time slot of time division duplex-S-CDMA frame, business datum is mapped in the pairing basic frame of each time slot except that described fixedly time slot, described basic frame is multiplexed on each time slot is sent to sending controling unit.
14. transmitting terminal according to claim 13 is characterized in that, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
15. transmitting terminal according to claim 14 is characterized in that, described Multiplexing Unit also is used to circulate, and to generate number be the wireless sub-frame frame number of first set point;
Described Multiplexing Unit also comprises:
Basic frame generation unit, being used to each wireless sub-frame to generate number is the basic frame number of second set point;
The control word generation unit is used to each basic frame to generate the control word numbering that number is the 3rd set point.
16. transmitting terminal according to claim 15 is characterized in that, described Multiplexing Unit also comprises:
The control word judgement unit is used to differentiate the control word numbering that the control word generation unit generates;
When the control word judgement unit determines in the basic frame control word numbering when equaling the 4th set point, described Multiplexing Unit is used for that synchrodata is mapped to described control word numbering and equals in the control word of the 4th set point;
When the control word judgement unit determines in the basic frame control word numbering when equaling the 5th set point, described Multiplexing Unit is used for the basic frame frame number that basic frame generation unit is generated and the pairing wireless sub-frame frame number of described basic frame that generates and is mapped to described control word numbering and equals in the control word of the 5th set point.
17. transmitting terminal according to claim 16 is characterized in that, described Multiplexing Unit also comprises:
The basic up judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of ascending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the basic up judgement unit of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described Multiplexing Unit is used for that the control data order is mapped to described basic frame control word and numbers in the pairing control word;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly ascending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic up judgement unit of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described Multiplexing Unit was used for that the business datum order is multiplexed into described basic frame control word and numbers in the pairing control word.
18. transmitting terminal according to claim 16 is characterized in that, described Multiplexing Unit also comprises:
The basic descending judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When control data is mapped to fixedly in the pairing basic frame of descending time slot, the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic descending judgement unit of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described Multiplexing Unit was used for that the control data order is mapped to described basic frame control word and numbers in the pairing time slot;
In business datum is mapped to the pairing basic frame of each time slot except that described fixedly descending time slot; the control word judgement unit determines in the described basic frame control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the basic descending judgement unit of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described Multiplexing Unit is used for that the business datum order is mapped to described basic frame control word and numbers in the pairing control word.
19. a receiving terminal is characterized in that, comprising:
Receive control unit, the data that are used for receiving are sent to demultiplexing unit;
Demultiplexing unit is used for recovering control data from the pairing basic frame of the fixedly time slot of time division duplex frame-S-CDMA frame, recovers business datum from the pairing basic frame of each time slot except that described fixedly time slot.
20. receiving terminal according to claim 19 is characterized in that, described fixedly time slot is fixedly ascending time slot or fixedly descending time slot.
21. receiving terminal according to claim 20 is characterized in that, described demultiplexing unit also comprises:
The control word generation unit, being used to each basic frame to generate number is the 3rd set point control word numbering; Described demultiplexing unit is used for numbering the pairing control word from each basic frame control word and recovers data.
22. receiving terminal according to claim 21 is characterized in that, described demultiplexing unit also comprises:
Lock unit is used for obtaining synchronously from the data that receive;
The control word judgement unit is used to differentiate the control word numbering that the control word generation unit generates;
After lock unit is obtained synchronously from the data that receive, the control word generation unit generates the control word numbering, the control word judgement unit determines control word and numbers when equaling the 4th set point, described demultiplexing unit is used for recovering synchrodata from the control word that described control word numbering equals the 4th set point, when the control word numbering equaled the 5th set point, described demultiplexing unit was used for recovering from the control word that described control word numbering equals the 5th set point the frame number and the pairing wireless sub-frame frame number of described basic frame of described basic frame.
23. receiving terminal according to claim 22 is characterized in that, described demultiplexing unit also comprises:
The basic up judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When from fixedly recovering control data the pairing basic frame of ascending time slot, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and the basic up judgement unit of frame determines the corresponding protection of basic frame frame number at interval when time slot, uplink pilot time slot, the first conventional time slot, and described demultiplexing unit is used for numbering from described basic frame control word that order recovery goes out control data the pairing control word;
When from the pairing basic frame of each time slot except that described fixedly ascending time slot, recovering business datum, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic up judgement unit of frame determined the conventional time slot of corresponding the 0th conventional time slot of basic frame frame number, descending pilot frequency time slot, the second conventional time slot to the six, described demultiplexing unit was used for numbering from described basic frame control word that order recovery goes out business datum in the pairing control word.
24. receiving terminal according to claim 22 is characterized in that, described demultiplexing unit also comprises:
The basic descending judgement unit of frame is used to differentiate the basic frame frame number of control data or business datum correspondence;
When from fixedly recovering control data the pairing basic frame of descending time slot, the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point, and when the basic descending judgement unit of frame determined the corresponding descending pilot frequency time slot of basic frame frame number, the 0th conventional time slot, described demultiplexing unit was used for numbering from described basic frame control word that order recovery goes out control data in the pairing control word;
When restore data from the pairing basic frame of each time slot except that described fixedly descending time slot; the control word judgement unit determines the control word numbering and is not equal to the 4th set point and is not equal to the 5th set point; and the basic descending judgement unit of frame determines the corresponding protection of basic frame frame number at interval during the conventional time slot of time slot, uplink pilot time slot, the first conventional time slot to the six, and described demultiplexing unit is used for numbering from described basic frame control word that the order demultiplexing goes out business datum in the pairing control word.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695192A (en) * | 2009-10-22 | 2010-04-14 | 中兴通讯股份有限公司 | Method and system for realizing resource distribution between baseband processing unit and radio frequency unit |
| CN101335566B (en) * | 2008-08-01 | 2012-02-15 | 京信通信系统（中国）有限公司 | Remote data interchanging equipment and data interchanging method thereof |
| WO2012083850A1 (en) * | 2010-12-21 | 2012-06-28 | 华为技术有限公司 | Method and device for frequency domain transmission |
| CN103354492A (en) * | 2008-02-28 | 2013-10-16 | Lg电子株式会社 | Method for multiplexing data and control information |
| US9775136B2 (en) | 2008-02-28 | 2017-09-26 | Lg Electronics Inc. | Method for multiplexing data and control information |
| CN113411871A (en) * | 2021-06-15 | 2021-09-17 | 深圳国人无线通信有限公司 | Energy-saving control method based on CPRI protocol and base station system |
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| US6005854A (en) * | 1997-08-08 | 1999-12-21 | Cwill Telecommunication, Inc. | Synchronous wireless access protocol method and apparatus |
| CN1622502A (en) * | 2003-11-27 | 2005-06-01 | 皇家飞利浦电子股份有限公司 | Method and apparatus for supporting downlink combined detection in TDD-CDMA communication system |
| CN100508414C (en) * | 2003-12-19 | 2009-07-01 | 大唐移动通信设备有限公司 | Descending synchronous calibrating method and apparatus for TD-SCDMA system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103354492A (en) * | 2008-02-28 | 2013-10-16 | Lg电子株式会社 | Method for multiplexing data and control information |
| CN103354492B (en) * | 2008-02-28 | 2017-01-18 | Lg电子株式会社 | Method for multiplexing data and control information |
| US9775136B2 (en) | 2008-02-28 | 2017-09-26 | Lg Electronics Inc. | Method for multiplexing data and control information |
| US10159064B2 (en) | 2008-02-28 | 2018-12-18 | Lg Electronics Inc. | Method for multiplexing data and control information |
| CN101335566B (en) * | 2008-08-01 | 2012-02-15 | 京信通信系统（中国）有限公司 | Remote data interchanging equipment and data interchanging method thereof |
| CN101695192A (en) * | 2009-10-22 | 2010-04-14 | 中兴通讯股份有限公司 | Method and system for realizing resource distribution between baseband processing unit and radio frequency unit |
| WO2012083850A1 (en) * | 2010-12-21 | 2012-06-28 | 华为技术有限公司 | Method and device for frequency domain transmission |
| CN102546504A (en) * | 2010-12-21 | 2012-07-04 | 华为技术有限公司 | Frequency domain transmission method and device |
| CN102546504B (en) * | 2010-12-21 | 2014-07-09 | 华为技术有限公司 | Frequency domain transmission method and device |
| RU2533185C1 (en) * | 2010-12-21 | 2014-11-20 | Хуавэй Текнолоджиз Ко., Лтд. | Transmission method and device for frequency domain |
| CN113411871A (en) * | 2021-06-15 | 2021-09-17 | 深圳国人无线通信有限公司 | Energy-saving control method based on CPRI protocol and base station system |
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|---|---|
| CN101110631B (en) | 2010-09-29 |
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