CN1330099C - A method for implementing sending and receiving control of TD-SCDMA system under different conditions - Google Patents
A method for implementing sending and receiving control of TD-SCDMA system under different conditions Download PDFInfo
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- CN1330099C CN1330099C CNB2004100895978A CN200410089597A CN1330099C CN 1330099 C CN1330099 C CN 1330099C CN B2004100895978 A CNB2004100895978 A CN B2004100895978A CN 200410089597 A CN200410089597 A CN 200410089597A CN 1330099 C CN1330099 C CN 1330099C
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Abstract
The present invention relates to transmission and reception controlling technology in a TD-SCDMA mobile communication system, particularly to a method for controlling transmission and reception under different conditions of the TD-SCDMA system. Each control action is composed of a basic control operation and the triggering time thereof, and a basic control unit has seven basic operations which comprises RFPLL relevant control operations. In each period, all the control actions are arranged to form a list according to the triggering time; at the beginning of each period, a control action executing device obtains the information of the control actions from the control action list, and then generates corresponding RF control signals according to the information; the control action list is generated by a control action generator. The present invention mainly solves the technical problems of easily generated time conflict and complicated control in the TD-SCDMA system of the existing transmitting and receiving method, and the transmission and reception control of the TD-SCDMA system under the different conditions is realized by using the combination of the basic control operations.
Description
Technical field
The present invention relates to the transmitting-receiving control technology in the TD-SCDMA mobile communication system, particularly a kind of method that realizes the transmission under the TD-SCDMA system different situations and receive control.
Background technology
Communication system needs correct transmitting-receiving to control transmission and the reception that realizes signal.For time-division system, in that constantly to produce correct control signal accurately extremely important.Usually the basic transmission and the recruiting unit of time-division system are time slots (slot).With GSM is example, and basic transmission and reception operation comprise time slot of reception and send a time slot.For the communication system of multi-slot transmitting-receiving, as GPRS, also have and receive two time slots, send two time slots, receive three time slots or the like operation.For the operation of each reception or transmission, can be subdivided into the operation relevant again and relevant operation with radio frequency with base band.When radio frequency part was opened, phase-locked loop (PLL) is stable to need the long time usually, as 200us.Therefore one receives or transmit operation will be finished smoothly, just needs the front for some time without any the transmitting-receiving operation.The GSM/GPRS communication system has been considered this factor, so their transmission reception operation is that base unit is feasible with the time slot.
For the TD-SCDMA system, the configuration that sends and receive is more flexible, can see from agreement, and the time ratio that switches between sending and receiving is shorter, and the 10us (see figure 1) of only having an appointment is shorter than opening time of radio frequency part (RF).Therefore, under the situation of using a cover frequency synthesizer, the adjacent transmission and the operation of receiving slot just can not combine with receiving a time slot and sending a time slot, because conflict was arranged on the time.If still with slot be the base unit design operation, the operation of so this 1TX+1RX must be separately as a kind of situation.Because also the slot that sends or receive may adjacently be arranged with this 1TX+1RX, therefore total kind has a lot, comprises 1TS_RX again, 1TS_TX, 2TS_RX, 2TS_TX, 3TS_RX, 3TS_TX, 1TS_TX_1TS_RX, 1TS_TX_2TS_RX, 1TS_TX_3TS_RX, 1TS_RX_1TS_TX, 1TS_RX_2TS_TX, 1TS_RX_3TS_TX or the like.Make the control of system become very complicated like this.
Summary of the invention
The purpose of this invention is to provide the transmission under a kind of TD-SCDMA of the realization system different situations and receive the method for control, mainly solve existing method of sending and receiving and in the TD-SCDMA system, be easy to generate time conflict and control complicated technology problem, realize the transmission under the TD-SCDMA system different situations and receive the method for controlling by the combination of using the basic controlling operation.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of method that realizes the transmission under the TD-SCDMA system different situations and receive control, it is characterized in that: each control action is made up of basic controlling operation and triggered time thereof, basic control unit is subdivided into TX_start_RF, TX_start_BB, TX_END, RX_start_RF, RX_start_BB, RX_END, Nop (do-nothing operation) these seven kinds of basic operations, wherein TX_start_RF, RX_start_RF comprises the relevant control operation of RF PLL, TX_start_BB, RX_start_BB comprise the relevant control operation of base band, TX_END, RX_END is for finishing relevant control operation, TX_start_RF, the RX_start_RF operation is in advance in TX_start_BB, and RX_start_BB operates;
All control action becomes a tabulation according to the sequence arrangement in triggered time in each cycle, beginning in each cycle, the control action final controlling element is obtained the information of control action from the control action tabulation, produce corresponding RF control signal according to this information then, the tabulation of control action is produced by the control action generator.
The generation flow process of this control action tabulation is:
1. read first element, obtain ts1 constantly, te1;
2. judge the TR value, if 0, then dispose the Nop action, finish then; If 1, then execution in step 3.; If 2, then execution in step 7.;
3. dispose the RX_start_RF action, constantly: ts1-Δ 1; Then, configuration RX_start_BB action,
Constantly: ts1-Δ 2;
4. read next element, obtain ts2 constantly, te2; Judge whether TR is 0, if, then dispose the RX_END action, constantly: te1-Δ 3, finish then; If not, then carry out 5.;
5. whether judge ts2-te1 less than δ 1, if less than, then execution in step is 6.; If be not less than, then dispose the RX_END action, constantly: te1-Δ 3, then ts2 value is given that ts1, te2 value give te1, the TR2 value is given TR, execution is 2. then;
6. judge the TR value, if 1, then give te1 with the te2 value, carry out 4. then; If 2, then dispose TX_start_RF, constantly: ts2-Δ 4-Δ ss, dispose the RX_END action again, constantly: te1-Δ 3, dispose the TX_start_BB action, constantly: ts2-Δ 5-Δ ss again; Then, give te1, carry out 8. the te2 value;
7. dispose the TX_start_RF action, constantly: ts1-Δ 4-Δ ss; Then, configuration TX_start_BB action, constantly: ts1-Δ 4-Δ ss;
8. read next element, obtain ts2 ' constantly, te2 '; Judge whether TR is 0, if, then dispose the TX_END action, constantly: te1-Δ 6-Δ ss, finish then; If not, then carry out 9.;
9. whether judge ts2 '-te1 less than δ 2, if less than, then execution in step is 10.; If be not less than, then dispose the TX_END action, constantly: te1-Δ 6-Δ ss, then ts2 ' value is given that ts1, te2 ' value give te1, TR2 ' value is given TR, execution is 2. then;
10. judge the TR value, if 2, then give te1 with te2 ' value, carry out 8. then; If 1, then dispose RX_start_RF, constantly: ts2 '-Δ 1, dispose TX END action again, constantly: te1-Δ 6-Δ ss, dispose the RX_start_BB action, constantly: ts2 '-Δ 2 again; Then, give te1, carry out 4. te2 ' value;
Wherein:
Δ 1: action RX_START_RF should shift to an earlier date the time of aerial signal;
Δ 2: action RX_START_BB should shift to an earlier date the time of aerial signal;
Δ 3: action RX_END should shift to an earlier date the time of aerial signal;
Δ 4: action TX_START_RF should shift to an earlier date the time of aerial signal;
Δ 5: action TX_START_BB should shift to an earlier date the time of aerial signal;
Δ 6: action TX_END should shift to an earlier date the time of aerial signal.
Δ ss:Time Advance, the time that transmission need additionally shift to an earlier date;
Ts1, ts2, te1, te2, ts2 ', te2 ': intermediate variable;
The advantage of the inventive method is that control structure is simple, and for the transmission of the TD-SCDMA system of describing in the background technology with receive closer situation and also can handle.In addition, this method also be applicable to that GSM/GPRS is the sort of simultaneously can be based on the system of time slot design operation.Benefit is to use consistent structure treatment 1TS_RX, 2TS_RX, operated system such as 3TS_RX.
Description of drawings
Fig. 1 is the TD-SCDMA subframe structure.
Fig. 2 is the realization block diagram of the inventive method.
Fig. 3 is the flow chart of control action list producing in the inventive method.
Embodiment
See also Fig. 2, it is transmission under a kind of TD-SCDMA of realization of the present invention system different situations and the realization block diagram that receives the method for control.As shown in the figure: each control action is made up of above-mentioned basic controlling operation and triggered time thereof.(as a frame) all control action becomes a tabulation according to the sequence arrangement in triggered time in each cycle.In the beginning in each cycle, the control action final controlling element is obtained the information of control action from the control action tabulation, produce corresponding RF control signal according to this information then.The tabulation of control action is produced by the control action generator, normally operates in the program in the microprocessor.This method introduction be the basic controlling operation that how to utilize above-mentioned definition, produce corresponding control action sequence, thereby produce the TD-SCDMA RF control signal that needs.
Each control action is made up of basic controlling operation and triggered time thereof, basic control unit is subdivided into TX_start_RF, TX_start_BB, TX_END, RX_start_RF, RX_start_BB, RX_END, these seven kinds of basic operations of Nop, TX_start_RF wherein, RX_start_RF comprise the relevant control operation of RF PLL, TX_start_BB, RX_start_BB comprises the relevant control operation of base band, TX_END, RX_END is for finishing relevant control operation, TX_start_RF, RX_start_RF need be in advance in TX_start_BB, the RX_start_BB operation.
At first the demand with transmission in the frame and reception is converted into a demand for control tabulation.Because the base unit that the TD-SCDMA system sends and receives is a time slot, so the time slot of the corresponding work in each unit of this demand control tabulation.There is following several territory each unit:
Type (TR): 0: finish; 1: receive; 2: send;
The zero hour (ts);
The finish time (te);
For example, if will receive at TS0 in the frame, TS3 sends, and TS4 receives, and will have four in this demand for control tabulation so.Three time slots that first three items is corresponding above-mentioned, last flap-list finishes (TR=0).
The generation flow process of control action tabulation as shown in Figure 3, flow process is:
1. get first element, obtain ts1 constantly, te1;
2. judge the TR value, if 0, then dispose the Nop action, finish then; If 1, then execution in step 3.; If 2, then execution in step 7.;
3. dispose the RX_start_RF action, constantly: ts1-Δ 1; Then, configuration RX_start_BB action, constantly: ts1-Δ 2;
4. read next element, obtain ts2 constantly, te2; Judge whether TR is 0, if, then dispose the RX_END action, constantly: te1-Δ 3, finish then; If not, then carry out 5.;
5. whether judge ts2-te1 less than δ 1, if less than, then execution in step is 6.; If be not less than, then dispose the RX_END action, constantly: te1-Δ 3, then ts2 value is given that ts1, te2 value give te1, the TR2 value is given TR, execution is 2. then;
6. judge the TR value, if 1, then give te1 with the te2 value, carry out 4. then; If 2, then dispose TX_start_RF, constantly: ts2-Δ 4-Δ ss, dispose the RX_END action again, constantly: te1-Δ 3, dispose the TX_start_BB action, constantly: ts2-Δ 5-Δ ss again; Then, give te1, carry out 8. the te2 value;
7. dispose the TX_start_RF action, constantly: ts1-Δ 4-Δ ss; Then, configuration TX_start_BB action, constantly: ts1-Δ 4-Δ ss;
8. read next element, obtain ts2 ' constantly, te2 '; Judge whether TR is 0, if, then dispose TX END action, constantly: te1-Δ 6-Δ ss, finish then; If not, then carry out 9.;
9. whether judge ts2 '-te1 less than δ 2, if less than, then execution in step is 10.; If be not less than, then dispose the TX_END action, constantly: te1-Δ 6-Δ ss, then ts2 ' value is given that ts1, te2 ' value give te1, TR2 ' value is given TR, execution is 2. then;
10. judge the TR value, if 2, then give te1 with te2 ' value, carry out 8. then; If 1, then dispose RX_start_RF, constantly: ts2 '-Δ 1, dispose the TX_END action again, constantly: te1-Δ 6-Δ ss, dispose the RX_start_BB action, constantly: ts2 '-Δ 2 again; Then, give te1, carry out 4. te2 ' value;
Wherein:
Δ 1: action RX_START_RF should shift to an earlier date the time of aerial signal;
Δ 2: action RX_START_BB should shift to an earlier date the time of aerial signal;
Δ 3: action RX_END should shift to an earlier date the time of aerial signal;
Δ 4: action TX_START_RF should shift to an earlier date the time of aerial signal;
Δ 5: action TX_START_BB should shift to an earlier date the time of aerial signal;
Δ 6: action TX_END should shift to an earlier date the time of aerial signal.
Δ ss:Time Advance, the time that transmission need additionally shift to an earlier date;
Ts1, ts2, te1, te2, ts2 ', te2 ': intermediate variable;
Claims (2)
1, a kind of method that realizes the transmission under the TD-SCDMA system different situations and receive control, it is characterized in that: each control action is made up of basic controlling operation and triggered time thereof, basic control unit is subdivided into TX_start_RF, TX_start_BB, TX_END, RX_start_RF, RX_start_BB, RX_END, Nop these seven kinds of basic operations, wherein TX_start_RF, RX_start_RF comprises the relevant control operation of RF PLL, TX_start_BB, RX_start_BB comprise the relevant control operation of base band, TX_END, RX_END is for finishing relevant control operation, TX_start_RF, the RX_start_RF operation is in advance in TX_start_BB, and RX_start_BB operates;
All control action becomes a tabulation according to the sequence arrangement in triggered time in each cycle, beginning in each cycle, the control action final controlling element is obtained the information of control action from the control action tabulation, produce corresponding RF control signal according to this information then, the tabulation of control action is produced by the control action generator.
2, a kind of method that realizes the transmission under the TD-SCDMA system different situations and receive control according to claim 1, it is characterized in that: the generation flow process of this control action tabulation is:
1. read first element, obtain ts1 constantly, te1;
2. judge the TR value, if 0, then dispose the Nop action, finish then; If 1, then execution in step 3.; If 2, then execution in step 7.;
3. dispose the RX_start_RF action, constantly: ts1-Δ 1; Then, configuration RX_start_BB action, constantly: ts1-Δ 2;
4. read next element, obtain ts2 constantly, te2; Judge whether TR is 0, if, then dispose the RX_END action, constantly: te1-Δ 3, finish then; If not, then carry out 5.;
5. whether judge ts2-te1 less than δ 1, if less than, then execution in step is 6.; If be not less than, then dispose the RX_END action, constantly: te1-Δ 3, then ts2 value is given that ts1, te2 value give te1, the TR2 value is given TR, execution is 2. then;
6. judge the TR value, if 1, then give te1 with the te2 value, carry out 4. then; If 2, then dispose TX_start_RF, constantly: ts2-Δ 4-Δ ss, dispose RX END action again, constantly: te1-Δ 3, dispose the TX_start_BB action, constantly: ts2-Δ 5-Δ ss again; Then, give te1, carry out 8. the te2 value;
7. dispose the TX_start_RF action, constantly: ts1-Δ 4-Δ ss; Then, configuration TX_start_BB action, constantly: ts1-Δ 4-Δ ss;
8. read next element, obtain ts2 ' constantly, te2 '; Judge whether TR is 0, if, then dispose the TX_END action, constantly: te1-Δ 6-Δ ss, finish then; If not, then carry out 9.;
9. whether judge ts2 '-te1 less than δ 2, if less than, then execution in step is 10.; If be not less than, then dispose the TX_END action, constantly: te1-Δ 6-Δ ss, then ts2 ' value is given that ts1, te2 ' value give te1, TR2 ' value is given TR, execution is 2. then;
10. judge the TR value, if 2, then give te1 with te2 ' value, carry out 8. then; If 1, then dispose RX_start_RF, constantly: ts2 '-Δ 1, dispose the TX_END action again, constantly: te1-Δ 6-Δ ss, dispose the RX_start_BB action, constantly: ts2 '-Δ 2 again; Then, give te1, carry out 4. te2 ' value;
Wherein:
Δ 1: action RX_START_RF should shift to an earlier date the time of aerial signal;
Δ 2: action RX_START_BB should shift to an earlier date the time of aerial signal;
Δ 3: action RX_END should shift to an earlier date the time of aerial signal;
Δ 4: action TX_START_RF should shift to an earlier date the time of aerial signal;
Δ 5: action TX_START_BB should shift to an earlier date the time of aerial signal;
Δ 6: action TX_END should shift to an earlier date the time of aerial signal.
Δ ss:Time Advance, the time that transmission need additionally shift to an earlier date;
Ts1, ts2, te1, te2, ts2 ', te2 ': intermediate variable;
δ 1, δ 2 represent the predefined RX_start_RF need be in advance in RX_start_BB respectively, and TX_start_RF need be in advance in the time of TX_start_BB operation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004102833A1 (en) * | 2003-05-19 | 2004-11-25 | Koninklijke Philips Electronics N.V. | A method and apparatus for uplink synchronization maintenance with p2p communication in wireless communication networks |
| CN1553586A (en) * | 2003-12-19 | 2004-12-08 | 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 |
|---|---|---|---|---|
| WO2004102833A1 (en) * | 2003-05-19 | 2004-11-25 | Koninklijke Philips Electronics N.V. | A method and apparatus for uplink synchronization maintenance with p2p communication in wireless communication networks |
| CN1553586A (en) * | 2003-12-19 | 2004-12-08 | 大唐移动通信设备有限公司 | Descending synchronous calibrating method and apparatus for TD-SCDMA system |
Non-Patent Citations (1)
| Title |
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| 一种TD-SCDMA上行链路发送和接受方案 任晓东，电讯技术，第2期 2004 * |
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Effective date of registration: 20161213 Address after: 361015 Xiamen torch hi tech Zone, Park Park, Prudential industry building, Room 201, Fujian Patentee after: Xiamen Ziguang exhibition Rui Technology Co. Ltd. Address before: Pudong Songtao road 201203 Shanghai City No. 696 layer 3-4 Patentee before: Spreadtrum Communications (Shanghai) Co.,Ltd. |