CN101420264A - Uplink control signaling transmission method and apparatus thereof - Google Patents
Uplink control signaling transmission method and apparatus thereof Download PDFInfo
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- CN101420264A CN101420264A CNA2007101763471A CN200710176347A CN101420264A CN 101420264 A CN101420264 A CN 101420264A CN A2007101763471 A CNA2007101763471 A CN A2007101763471A CN 200710176347 A CN200710176347 A CN 200710176347A CN 101420264 A CN101420264 A CN 101420264A
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Abstract
The present invention, pertaining to time division duplex systems and frequency division duplex systems, discloses a method for transmitting uplink control signaling and a device thereof. The method comprises the step that when a transmitting end transmits data frames carrying data information, the transmitting end transmits uplink control signaling on at least two uplink time slots in one data frame or uplink time slots of at least two data frames. According to the present invention, the cover range of uplink control signaling is increased, the receiving performance of the uplink control signaling is improved, furthermore, the system performance is also improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of uplink control signaling transmission method and device thereof.
Background technology
In wireless communication system, upstream control signaling transmits in ascending time slot, the transmission cycle is generally a time slot, for the short system of some ascending time slot length, on the one hand because uplink transmission power is limited, terminal can't send control signaling with bigger power and enlarge the coverage of control signaling, on the other hand because control signaling transmission energy duration (slot time) is shorter, thereby cause the direct decline of system's covering power, influence systematic function, increased operator's networking and network planning cost significantly.
With LTE TDD (time division duplex) system is that example illustrates, in LTE TDD (time division duplex) system, comprise the descending time slot that is used for transmitting downlink data in the radio frames of transmitting data information, and the ascending time slot that is used for transmit ascending data, wherein upstream control signaling transmits in ascending time slot.At present LTETDD system definition two types of (LTE Type1 TDD and LTE Type2 TDD) radio frames, the slot length of LTEType2TDD radio frames is 0.675ms, the slot length of LTE Type 1 TDD radio frames is 1ms.Fig. 1 has provided the structure of time slot signal of LET Type2 TDD radio frames, and wherein each solid line grid is represented a time slot.In LETT ype2 TDD wireless timeslot structure shown in Figure 1; a 10ms radio frames comprises two 5ms fields (being Frame again); form by business time-slot and 3 special time slots of 7 isometric (675us) again in each field; wherein 3 special time slots are respectively DwPTS (descending special time slot; length is 83.72us), (protection at interval for GP; length is 50us), UpPTS (uplink special time slot, length are 141.28us).
The carrying upstream control signaling is designed among the current LTE Type2 TDD: the control signaling transmission cycle is a time slot, that is: the control signaling transmission energy duration is a time slot (675us).Because LTE Type2TDD slot length (0.675ms) is shorter than LTE Type1TDD slot length (1ms), make it less on uplink control signaling covers.
Table 1 has provided the link budget comparative result of LTE Type1 TDD and LTE Type2 TDD radio frames, promptly satisfies the comparison of the maximum covering of system's minimum quality of service requirement.
Table 1
| The average error rate that requirement reaches (BER) | Accessible radius of society (1ms) | Accessible radius of society (0.675ms) |
| 10＾-2 | <1.8km | <1.6km |
| 10＾-4 | <1.2km | <1.1km |
The simulation result to ul ack-SINR that provides according to DoCoMo 3GPP R1-070101 is 0.675ms in conjunction with the slot length of LTE Type2 TDD radio frames, can draw the comparative result shown in the table 1.This shows that LTE Type2 TDD has the covering about 10% to descend than LTE Type1 TDD radio frames.
Summary of the invention
The embodiment of the invention has disclosed a kind of uplink control signaling transmission method and device thereof, to increase the uplink control signaling coverage, improves the uplink control signaling receptivity, improves systematic function.
The uplink control signaling transmission method that the embodiment of the invention discloses is applied to tdd systems and frequency division duplex system, and this method comprises:
When transmitting terminal sends the Frame of carry data information, at least two ascending time slots of this transmitting terminal in a Frame, or the transmission of the ascending time slot at least two Frames upstream control signaling.
The data information transmission device that the embodiment of the invention discloses is applied to tdd systems and frequency division duplex system, and this device comprises:
Module is set, is used at least two ascending time slots at a Frame, or the carrying of the ascending time slot at least two Frames upstream control signaling, and generate Frame;
Sending module is used to send the described described Frame that module is provided with generation that is provided with.
The above embodiment of the present invention, when transmitting terminal sends Frame, by a plurality of ascending time slots in a Frame, or the transmission of the ascending time slot in a plurality of Frames upstream control signaling, thereby realized repeating to send upstream control signaling, increase the uplink control signaling coverage, improved the uplink control signaling receptivity, and then improved systematic function.
Description of drawings
Fig. 1 is the structure of time slot schematic diagram of LTE Type2 TDD radio frames in the prior art;
Fig. 2 is the wireless timeslot structural representation of the embodiment of the invention one;
Fig. 3 repeats and the hopping structure exemplary plot between the time slot of the embodiment of the invention;
Fig. 4 is the wireless timeslot structural representation of the embodiment of the invention two;
Fig. 5 is the structural representation of the data information transmission device of the embodiment of the invention.
Embodiment
The embodiment of the invention improves the uplink control signaling coverage by repeat to send the uplink control signaling mode in two Frames of a radio frames, thereby improves the uplink control signaling receptivity.
Embodiments of the present invention is described in detail below in conjunction with accompanying drawing.
Embodiment one
Present embodiment is with the 10ms radio frames of LTE Type2 TDD system, and its uplink and downlink timeslot ratio is that 3:4 is an example, has described the uplink control signaling transmission means.Data message transmitting terminal structure radio frames as shown in Figure 2 sends, to reach the purpose that improves the upstream control signaling coverage.
Referring to Fig. 2, be the wireless timeslot structural representation of the embodiment of the invention one.Comprise 2 5ms fields in the 10ms radio frames among Fig. 2, comprise 1 descending time slot TS0 in each field successively, 3 ascending time slot TS1, TS2 and TS3,3 descending time slot TS4, TS5 and TS6.
In order to improve the uplink control signaling coverage, present embodiment is by the ascending time slot carrying upstream control signaling at each 5ms field, reach and in a 10ms frame, repeat the transmission upstream control signaling twice, thereby make the energy duration be extended for 2 ascending time slots (be 2 * Ttimeslot, wherein Ttimeslot is an ascending time slot length).
In the present embodiment, repeat to send the time slot repetitive mode that the uplink control signaling method can adopt 5ms interframe, that is, the upstream control signaling at first some ascending time slots in previous 5ms frame sends, and the some ascending time slots in next 5ms frame repeat to send again.As shown in Figure 2, upstream control signaling sends in the TS1 of previous 5ms frame time slot, repeats to send in the TS1 of next 5ms frame time slot again, and the rest may be inferred, the TS2 time slot in former and later two 5ms frames, and the TS3 time slot all can carry upstream control signaling.
In order to guarantee cell edge and highspeed user's uplink control signaling receptivity, present embodiment is repeating to send in the uplink control signaling ascending time slot, adopt the mode of frequency hopping to carry upstream control signaling, promptly, between time slot, adopt the different identical information of frequency resource carrying, to obtain frequency diversity gain.As shown in Figure 3, can in previous 5ms frame, in the TS1 time slot, carry upstream control signalings by frequency resource block 1 and frequency resource block 2 respectively; TS1 time slot in a back 5ms frame repeats to send upstream control signaling, in the ascending time slot TS1 of previous 5ms frame, in the ascending time slot TS1 of this back 5ms frame, carry by frequency resource block 2 by frequency resource block 1 loaded information, and in the ascending time slot TS1 of previous 5ms frame, in the ascending time slot TS1 of this back 5ms frame, carry, thereby acquisition time and frequency diversity gain by frequency resource block 1 by frequency resource block 2 loaded information.For the LTE system, its total bandwidth can be 5MHz, 10MHz, and 20MHz etc., the bandwidth of an above-mentioned frequency resource block can be set to 180KHz, and the remaining bandwidth in the time slot can be used for the transmission of data or out of Memory.Present embodiment has utilized 2 frequency resource block carrying upstream control signalings in each ascending time slot, in specific implementation, can also utilize more frequency resources piece carrying upstream control signaling according to system requirements.
Adopt aforesaid way transmission upstream control signaling, as shown in Figure 2, as can be seen, the TS1 of former and later two 5ms frames forms two time slot pairings, and in like manner, the TS2 of latter two 5ms frame and TS3 form two time slot pairings respectively.The ascending time slot that forms two time slot pairings can adopt the frequency hopping mode also can not adopt the frequency hopping mode to carry identical upstream control signaling, adopts the frequency hopping mode can obtain gain on Time And Frequency.Therefore, the above-mentioned transmission uplink control signaling method of present embodiment not only can improve the uplink control signaling coverage, can also solve when ascending time slot is the odd number number, and prior art can't be carried out the problem of two time slot pairings in the 5ms frame.
Embodiment two
Present embodiment is with the 10ms radio frames of LTE Type2 TDD system, and its uplink and downlink timeslot ratio is that 3:4 is an example, has described the uplink control signaling transmission means.Data message transmitting terminal structure radio frames as shown in Figure 2 sends, to reach the purpose that improves the upstream control signaling coverage.
Referring to Fig. 4, be the wireless timeslot structural representation of the embodiment of the invention one.Comprise 2 5ms fields in the 10ms radio frames among Fig. 4, comprise 1 descending time slot TS0 in each field successively, 3 ascending time slot TS1, TS2 and TS3,3 descending time slot TS4, TS5 and TS6.
Present embodiment is by the ascending time slot carrying upstream control signaling at each 5ms field, reach and in a 10ms frame, repeat the transmission upstream control signaling twice, thereby make the energy duration be extended for 2 ascending time slots (be 2 * Ttimeslot, wherein Ttimeslot is an ascending time slot length).
In the present embodiment, repeat to send the time slot repetitive mode that the uplink control signaling method can adopt 5ms interframe, that is, the upstream control signaling at first some ascending time slots in previous 5ms frame sends, and the some ascending time slots in next 5ms frame repeat to send again.As shown in Figure 2, upstream control signaling sends in the TS1 of previous 5ms frame time slot, repeats to send in the TS1 of next 5ms frame time slot again, and the rest may be inferred, and TS2 time slot and TS3 time slot in former and later two 5ms frames all can carry upstream control signaling.
Present embodiment is repeating to send in the uplink control signaling ascending time slot, adopts the mode of frequency hopping to carry upstream control signaling,, adopts the different identical information of frequency resource carrying between time slot, with acquisition time and frequency diversity gain that is.As shown in Figure 3, can in previous 5ms frame, in the TS1 time slot, carry upstream control signalings by frequency resource block 1 and frequency resource block 2 respectively; TS2 time slot in this 5ms frame repeats to send upstream control signaling, in TS1, in TS2, carry by frequency resource block 2 by frequency resource block 1 loaded information, and in TS1, in TS2, carry, thereby obtain frequency diversity gain by frequency resource block 1 by frequency resource block 2 loaded information.In like manner, in previous 5ms frame, in TS3, carry upstream control signalings by frequency resource block 1 and frequency resource block 2 respectively; In a back 5ms frame, in the TS3 of previous 5ms frame, in the TS1 of this back 5ms frame, carry by frequency resource block 2 by frequency resource block 1 loaded information, and in the TS3 of previous 5ms frame by frequency resource block 2 loaded information in the TS1 of this back 5ms frame by frequency resource block 1 carrying, thereby acquisition time, frequency diversity gain.In carrying uplink control signaling time slot, carrying uplink control signaling remaining bandwidth can be used for the transmission of data or out of Memory.
This shows that TS1 in the previous 5ms frame and TS2 form two time slot pairings, TS2 in the back 5ms frame and TS3 form two time slot pairings, and the TS1 in a TS3 in the previous 5ms frame and the back 5ms frame forms two time slot pairings.The ascending time slot that forms two time slot pairings can adopt the frequency hopping mode also can not adopt the frequency hopping mode to carry identical upstream control signaling, adopts the frequency hopping mode can obtain gain on Time And Frequency.Therefore, the above-mentioned transmission uplink control signaling method of present embodiment not only can improve the uplink control signaling coverage, can also solve when ascending time slot is the odd number number, and prior art can't be carried out the problem of two time slot pairings in the 5ms frame.And, can reduce the propagation delay time that simple employing interframe time slot pairing is caused.
The above embodiment of the present invention, when carrying uplink control signaling ascending time slot carries out two time slots pairing in to a previous 5ms frame and a back 5ms frame, can be according to the ratio of uplink and downlink timeslot in the system, adopt matching method realization flexibly, comprise: in the 5ms frame, carry out two time slot pairings, perhaps carry out two time slot pairings in 5ms interframe, perhaps the part time slot carries out two time slot pairings in the 5ms frame, and the part time slot carries out two time slot pairings in 5ms interframe.
The foregoing description is the object of the invention preferred embodiment, in addition, if only carry upstream control signaling in two or more ascending time slots in a 5ms frame, compared with prior art can increase the upstream control signaling coverage equally, further, if these ascending time slots are carried out the time slot pairing and adopt the frequency hopping mode to transmit upstream control signaling, also will on Time And Frequency, obtain gain.
For frequency division duplex system, can increase the upstream control signaling coverage by repeating to send the uplink control signaling mode equally.In frequency division duplex system, Frame can be divided into uplink data frames and downlink data frame.In two uplink data frames, in first uplink data frames in carrying uplink control signaling ascending time slot and second uplink data frames carrying uplink control signaling ascending time slot carry out two time slots and match, perhaps, in first uplink data frames, carry out two time slot pairings between carrying uplink control signaling ascending time slot, in second uplink data frames, carry out two time slot pairings between carrying uplink control signaling ascending time slot; Perhaps, carrying uplink control signaling part ascending time slot carries out two time slot pairings in first uplink data frames, carrying uplink control signaling part ascending time slot carries out two time slots pairings in second uplink data frames, and all the other ascending time slots of carrying uplink control signaling in carrying all the other ascending time slots of uplink control signaling in first uplink data frames and second uplink data frames is carried out two time slots match.
Two ascending time slots that form two time slot pairings can adopt the frequency hopping mode also can not adopt the frequency hopping mode to transmit identical upstream control signaling, when adopting the frequency hopping mode, two ascending time slots that form two time slot pairings are used the different identical upstream control signalings of frequency resource block transmission.
Embodiments of the invention also provide a kind of data information transmission device, can be applicable to tdd systems and frequency division duplex system, and as shown in Figure 5, this device comprises module and sending module are set, wherein
Module is set, is used at least two ascending time slots at a Frame, or the carrying of the ascending time slot at least two Frames upstream control signaling, and generate Frame.For example, carry upstream control signaling respectively in the ascending time slot of 2 5ms frames of the 10ms radio frames in tdd systems, and generate this 10ms radio frames;
Sending module is used to send the above-mentioned Frame that module is provided with generation that is provided with.
The module that is provided with in the above-mentioned data information transmission device also is further used for, carry upstream control signaling at least one ascending time slot of first Frame in two Frames and second Frame respectively, as carrying upstream control signaling respectively in TS1, TS2 in the 5ms frame of the front and back of 10ms radio frames and the TS3 time slot.Module is set when the carrying upstream control signaling is set, in first Frame of this radio frames and second Frame, be used for carrying each time slot of uplink control signaling ascending time slot, utilize a plurality of times, frequency resource block to carry this upstream control signaling respectively.Module is set for the resource beyond the carrying uplink control signaling in these time slots, the data message that carries other can be set, as user data or other control information.
Module is set in carrying upstream control signaling process is set in the above-mentioned data information transmission device, also can be further used for, carrying uplink control signaling ascending time slot carries out two time slots and matches in carrying uplink control signaling ascending time slot and second Frame in first Frame of two Frames; Perhaps, carrying uplink control signaling ascending time slot carries out two time slot pairings in first Frame, and carrying uplink control signaling ascending time slot carries out two time slot pairings in second Frame; Perhaps, carrying uplink control signaling part ascending time slot carries out two time slot pairings in first Frame, carrying uplink control signaling part ascending time slot carries out two time slots pairings in second Frame, and all the other ascending time slots of carrying uplink control signaling in carrying all the other ascending time slots of uplink control signaling in first Frame and second Frame is carried out two time slots match.Two ascending time slots that form two time slot pairings can adopt the frequency hopping mode also can not adopt the frequency hopping mode to transmit identical upstream control signaling, when adopting the frequency hopping mode, two ascending time slots that form two time slot pairings can be used the identical or different identical upstream control signaling of frequency resource block transmission.
In sum, the above embodiment of the present invention, when transmitting terminal sends the 10ms radio frames, by in each 5ms field of this radio frames, transmitting upstream control signaling respectively, thereby in a 10ms radio frames, repeat to send upstream control signaling, increase the uplink control signaling coverage, improved the uplink control signaling receptivity, and then improved systematic function.In addition, the embodiment of the invention adopts the mode of frequency hopping to transmit upstream control signaling, can guarantee cell edge and highspeed user's uplink control signaling receptivity.The above embodiment of the present invention also provides flexibly two time slot matching methods, has solved in the prior art when ascending time slot can't carry out the problem that time slot matches during for odd number.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1, a kind of uplink control signaling transmission method is applicable to time division duplex and frequency division duplex system, it is characterized in that, comprising:
When transmitting terminal sends the Frame of carry data information, at least two ascending time slots of this transmitting terminal in a Frame, or the transmission of the ascending time slot at least two Frames upstream control signaling.
2, the method for claim 1 is characterized in that, described transmitting terminal is the described upstream control signaling of transmission at least one ascending time slot of first Frame in two Frames and second Frame respectively.
3, method as claimed in claim 2 is characterized in that, described transmitting terminal respectively at least one ascending time slot of described first Frame and described second Frame in the transmission upstream control signaling, be specially:
Described transmitting terminal sends described upstream control signaling by a plurality of times, frequency resource block respectively in each time slot of the described ascending time slot of described first Frame and second Frame.
4, as claim 1 or 3 described methods, it is characterized in that, also comprise step:
In described first Frame, be used for sending described uplink control signaling ascending time slot and described second Frame and be used to send the corresponding ascending time slot of described uplink control signaling and carry out two time slots pairings, form two identical upstream control signalings of ascending time slots transmission of two time slots pairings;
Perhaps, in described first Frame, be used to send and carry out two time slot pairings between described uplink control signaling ascending time slot, in described second Frame, be used to send and carry out two time slot pairings between described uplink control signaling ascending time slot, form two identical upstream control signalings of ascending time slot transmission of two time slot pairings;
Perhaps, in described first Frame, be used to send and carry out two time slot pairings between described uplink control signaling part ascending time slot, in described second Frame, be used to send and carry out two time slot pairings between described uplink control signaling part ascending time slot, and be used to send all the other ascending time slots of described uplink control signaling and carry out two time slots pairings being used for sending all the other ascending time slots of described uplink control signaling and described second Frame in described first Frame, form two identical upstream control signalings of ascending time slots transmission of two time slots pairings.
5, method as claimed in claim 4 is characterized in that, two ascending time slots that form two time slot pairings are used the identical or different identical upstream control signalings of frequency resource block transmission.
6, a kind of data information transmission device is characterized in that, is applicable to time division duplex and frequency division duplex system, comprising:
Module is set, is used at least two ascending time slots at a Frame, or the carrying of the ascending time slot at least two Frames upstream control signaling, and generate Frame;
Sending module is used to send the described described Frame that module is provided with generation that is provided with.
7, transmitting device as claimed in claim 6 is characterized in that, the described module that is provided with is further used for, respectively the described upstream control signaling of carrying at least one ascending time slot in first Frame in described two Frames and second Frame.
8, transmitting device as claimed in claim 7, it is characterized in that, the described module that is provided with is further used for, and in each time slot of the described ascending time slot of described first Frame and described second Frame, sends described upstream control signaling by a plurality of times, frequency resource block respectively.
9, as claim 6 or 7 described transmitting devices, it is characterized in that, the described module that is provided with is further used for, the described uplink control signaling ascending time slot of carrying carries out two time slot pairings in the described uplink control signaling ascending time slot of carrying and described second Frame in described first Frame, forms two identical upstream control signalings of ascending time slot transmission of two time slot pairings;
Perhaps, be further used in described first Frame, carrying described uplink control signaling ascending time slot and carry out two time slots pairings, the described uplink control signaling ascending time slot of carrying carries out two time slot pairings in described second Frame, forms two identical upstream control signalings of ascending time slot transmission of two time slot pairings;
Perhaps, be further used in described first Frame, carrying described uplink control signaling part ascending time slot and carry out two time slots pairings, the described uplink control signaling part ascending time slot of carrying carries out two time slot pairings in described second Frame, and all the other ascending time slots of the described uplink control signaling of carrying in carrying all the other ascending time slots of described uplink control signaling and described second Frame in described first Frame are carried out two time slots match, form two identical upstream control signalings of ascending time slot transmission of two time slot pairings.
10, transmitting device as claimed in claim 9 is characterized in that, two ascending time slots that form two time slot pairings are used the identical or different identical upstream control signalings of frequency resource block transmission.
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| CN102158325A (en) * | 2011-04-22 | 2011-08-17 | 中兴通讯股份有限公司 | Method and device for data transmission |
| CN110830223A (en) * | 2018-08-10 | 2020-02-21 | 财团法人资讯工业策进会 | User equipment and retransmission method |
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| CN1747595A (en) * | 2004-09-10 | 2006-03-15 | 北京三星通信技术研究有限公司 | The signal transmission method of upstream data service |
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| CN102158325B (en) * | 2011-04-22 | 2017-05-10 | 中兴通讯股份有限公司 | Method and device for data transmission |
| CN110830223A (en) * | 2018-08-10 | 2020-02-21 | 财团法人资讯工业策进会 | User equipment and retransmission method |
| CN110830223B (en) * | 2018-08-10 | 2022-05-03 | 财团法人资讯工业策进会 | User equipment and retransmission method |
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