CN103648170A - Data transmission method and data transmission device applied to dual-mode system - Google Patents
Data transmission method and data transmission device applied to dual-mode system Download PDFInfo
- Publication number
- CN103648170A CN103648170A CN201310747013.0A CN201310747013A CN103648170A CN 103648170 A CN103648170 A CN 103648170A CN 201310747013 A CN201310747013 A CN 201310747013A CN 103648170 A CN103648170 A CN 103648170A
- Authority
- CN
- China
- Prior art keywords
- subframe
- equations
- kind subframe
- scdma
- postponed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention discloses data transmission method and a data transmission device applied to a dual-mode system. The method comprises the following steps: during data transmission in each half frame, sending a first kind of sub frames based on a TD-LTE (Time Division-Long Term Evolution) mechanism; and from the initial time of the first kind of sub frames, through offset in set time, after delaying the sub frames with set number in a second kind of sub frames based on a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) mechanism by N chips, then starting sending the second kind of sub frames, wherein N is a positive integer and is greater than or equal to 8 but less than 16. According to the method, the frame structure of the second kind of sub frames is delayed relative to that of the first kind of sub frames, so that the condition that the DwPTS (Downlink Pilot Time Slot) of the first kind of sub frames is used for carrying data services can be sufficiently ensured, so that the handling capacity of the TD-LTE system is effectively improved. Meanwhile, the TD-LTE and TD-SCDMA share the mode in time, and can support more and agile special sub frame configuration.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of data transmission method and device that is applied to dual mode system.
Background technology
Dual mode system is to comprise TD SDMA (Time Division Synchronized Code Division Multiple Access, TD-SCDMA) the broadband system of the frequency range of using and TD SDMA-Long Term Evolution (TD-SCDMA Long Term Evolution, TD-LTE) frequency range of using.The reception and the sendaisle that due to dual mode system, adopt share, and therefore can have interference phenomenon, and for example, when TD-SCDMA frequency range is transmission state, TD-LTE frequency range is accepting state, and now two frequency range reiving/transmitting states are inconsistent, can have interference phenomenon.As shown in table 1 is TD-LTE system special subframe allocation list, and this form be take agreement 36.211 as foundation, take sampled point as unit.
Table 1
In order to solve TD-SCDMA and TD-LTE in dual mode system, receive and dispatch and occur the problem that interferes with each other when inconsistent; in prior art, conventional method is by the frame head position of translation TD-LTE and TD-SCDMA signal transmitted; guarantee switching point alignment when sub-frame of uplink switches to descending sub frame in above-mentioned two frequency ranges; and avoid the interference between up-downgoing by protection subframe (Guard Period, the GP) size of adjusting in TD-LTE frequency range.Although but this method has solved the interference problem between TD-SCDMA frequency range and the up-downgoing of TD-LTE frequency range in dual mode system, can not guarantee that all subframe ratios in TD-SCDMA frequency range and TD-LTE frequency range can both coexist.Meanwhile, the method has caused the longer configuration of descending pilot frequency subframe (DwPTS) in the configuration of TD-LTE special subframe all can not adopt, thereby has influence on the throughput of whole system.
The defect existing in order to overcome said method, a kind of dual-mode radio frequency far-pulling module (Radio Remote Unit that is applied to has been proposed again in prior art, RRU) the sub-frame configuration method in, by selling the part DwPTS of TD-LTE system, the DwPTS of TD-LTE system and the ascending pilot frequency subframe (UpPTS) of TD-SCDMA system are not conflicted, retained to a certain extent the function of DwPTS bearing data service in TD-LTE system simultaneously.
The TD-SCDMA5:2 shown in Fig. 1 and TD-LTE ascending-descending subframes configuration 2 (3:1:1) of take are below example, introduce the above-mentioned sub-frame configuration method being applied in bimodulus RRU.The ascending-descending subframes of TD-SCDMA is configured to 5:2, is illustrated in and in every field, has 5 descending sub frames and 2 sub-frame of uplink.TD-LTE sub-frame configuration 2 is 2 situation corresponding to configuring sequence number in table 2, is illustrated in every field and has 3 descending sub frames, 1 sub-frame of uplink and 1 special subframe, wherein, configures sequence number and be 6 situation in special subframe employing table 1.
Table 2
Figure 2 shows that the special subframe expanded view of Fig. 1.By the frame head position of TD-SCDMA translation 700 μ s backward, guarantee the rear border of the 2nd sub-frame of uplink of TD-SCDMA and the rear boundary alignment of the 1st sub-frame of uplink of TD-LTE.Because the time offset (Offset) of TD-SCDMA is 700 μ s, the time interval of descending sub frame is 675 μ s, and GP is 275 μ s, TD-LTE(special subframe configuration 6) time interval of descending sub frame be 1000 μ s, the time interval of DwPTS is
known by calculating, Δ=700+675+275-1000-643.23=6.77 μ s, the rear border of the rear border of the UpPTS of TD-SCDMA and the DwPTS of TD-LTE does not line up, the rear border of the DwPTS of the rear relative TD-LTE in border of the UpPTS of the TD-SCDMA 6.77 μ s that backward staggered.
Figure 3 shows that the 9th OFDM symbol expanded view of DwPTS of the TD-LTE of Fig. 2.In order to guarantee that in TD-SCDMA and TD-LTE, ascending-descending subframes does not coexist, need to do special processing to the 9th of the DwPTS of TD-LTE the symbol.Radio-frequency receiving-transmitting switch (diverter switch from descending sub frame to the sub-frame of uplink) time of considering TD-LTE is 8 μ s, the up time of reception in advance of TD-SCDMA is 6chips=4.6875 μ s, therefore need to do brachymemma to the 9th of the DwPTS of TD-LTE the OFDM symbol, process, brachymemma length is 8+4.6875-6.77=5.9175 μ s.
So the sub-frame configuration method being applied to above-mentioned in bimodulus RRU is coordinated the calibration of TD-LTE and TD-SCDMA by the afterbody part signal of brachymemma DwPTS, and bearer service data on front 8 the OFDM symbols in the DwPTS of the TD-LTE outside calibration.The in the situation that of desirable peak speed, owing to having increased by 8 descending symbols that can be used for dispatching services, can increase
the downlink throughput capacity of left and right, wherein, the OFDM symbolic number that conventional subframe can bearing data service is 12, the OFDM symbolic number that special subframe configuration 6 can bearing data service is 8.
Yet, as shown in Figure 4 A and 4 B shown in FIG. in modulation levels (MCS), be respectively 16 and at 14 o'clock, the TD-LTE simulation figure of (as shown in the line 1 in Fig. 4 A and Fig. 4 B) and not brachymemma (as shown in the line 2 in Fig. 4 A and Fig. 4 B) after the DwPTS tail symbol brachymemma of TD-LTE, this emulation is for to approach under the condition of peak rate, when bimodulus RRU supports that TD-LTE special subframe is configured to 9:3:2, the performance loss that the last 6 μ s signal brachymemmas of the 9th OFDM symbol of the DwPTS of TD-LTE and not brachymemma bring.From Fig. 4 A and Fig. 4 B, only have MCS to drop to below 14, after the brachymemma of DwPTS tail symbol and the TD-LTE systematic function difference of not brachymemma just can be reduced to this scope that can accept of 1～2db.But now actual throughput gain can only reach
wherein, when hypothesis uplink scheduling is 96PRB, the Tb-size=24496 that MCS14 is corresponding, the Tb-size=71112 that MCS28 is corresponding.As can be seen here, brachymemma the 6 μ s at last OFDM symbol end of DwPTS of TD-LTE can reduce largely the downlink throughput capacity gain of TD-LTE system.
Summary of the invention
The embodiment of the present invention provides a kind of data transmission method and device that is applied to dual mode system, the problem declining in order to solve the downlink throughput capacity gain of the TD-LTE system that the afterbody part signal of the DwPTS because of brachymemma TD-LTE existing in prior art causes.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
First aspect, a kind of data transmission method that is applied to dual mode system, while carrying out transfer of data in each field, comprising:
The first kind subframe of transmission based on TD SDMA Long Term Evolution TD-LTE mechanism;
From sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
By this implementation, Equations of The Second Kind subframe is delayed with respect to the frame structure integral body of first kind subframe, thereby the DwPTS that has fully guaranteed first kind subframe carries for data service, effectively improved the throughput of TD-LTE system, simultaneously, while making TD-LTE and TD-SCDMA common mode, can support more configurations of special subframe more flexibly.
In conjunction with first aspect, in the possible implementation of the first, the subframe of setting number in the Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to N chip backward, comprising:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
By this implementation, utilize the part symbol at the 4th subframe end in Equations of The Second Kind subframe, Equations of The Second Kind subframe integral body is delayed.
In conjunction with first aspect, in the possible implementation of the second, the subframe of setting number in the Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to N chip backward, comprising:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
By this implementation, make Equations of The Second Kind subframe delay 8 chips with respect to first kind subframe integral body.
In conjunction with first aspect, in the third possible implementation, described setting-up time side-play amount is 700 microseconds.
Above-mentioned any one possible implementation in conjunction with first aspect, in the 4th kind of possible implementation, sends described Equations of The Second Kind subframe, comprising:
In the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
By this implementation, guaranteed that all OFDM symbols of the DwPTS of first kind subframe all can, for data traffic transmission, not need to do brachymemma and process.
Second aspect, a kind of data transmission device that is applied to dual mode system, comprising:
Communication unit, while carrying out transfer of data, for sending the first kind subframe based on TD SDMA Long Term Evolution TD-LTE mechanism in each field;
Scheduling unit, for from sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
Like this, by the mutual cooperation of said two units, Equations of The Second Kind subframe is delayed with respect to the frame structure integral body of first kind subframe, the DwPTS that has fully guaranteed first kind subframe carries for data service, effectively improved the throughput of TD-LTE system, meanwhile, while making TD-LTE and TD-SCDMA common mode, can support more configurations of special subframe more flexibly.
In conjunction with second aspect, in the possible implementation of the first, described scheduling unit specifically for:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
Like this, scheduling unit utilizes the part symbol at the 4th subframe end in Equations of The Second Kind subframe, and Equations of The Second Kind subframe integral body is delayed.
In conjunction with second aspect, in the possible implementation of the second, described scheduling unit specifically for:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
Like this, scheduling unit makes Equations of The Second Kind subframe delay 8 chips with respect to first kind subframe integral body.
In conjunction with second aspect, in the third possible implementation, described scheduling unit specifically for:
Described setting-up time side-play amount is set to 700 microseconds.
In conjunction with above-mentioned any one possible implementation of second aspect, in the 4th kind of possible implementation, described scheduling unit specifically for:
Send described Equations of The Second Kind subframe, in the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
Like this, scheduling unit has guaranteed that all OFDM symbols of the DwPTS of first kind subframe all can, for data traffic transmission, not need to do brachymemma and process.
The third aspect, a kind of data transmission device that is applied to dual mode system, comprising:
Processor, while carrying out transfer of data, for sending the first kind subframe based on TD SDMA Long Term Evolution TD-LTE mechanism in each field; From sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
Like this, processor makes Equations of The Second Kind subframe delay with respect to the frame structure integral body of first kind subframe, the DwPTS that has fully guaranteed first kind subframe carries for data service, effectively improved the throughput of TD-LTE system, simultaneously, while making TD-LTE and TD-SCDMA common mode, can support more configurations of special subframe more flexibly.
In conjunction with the third aspect, in the possible implementation of the first, described processor specifically for:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
Like this, processor utilizes the part symbol at the 4th subframe end in Equations of The Second Kind subframe, and Equations of The Second Kind subframe integral body is delayed.
In conjunction with the third aspect, in the possible implementation of the second, described processor specifically for:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
Like this, processor makes Equations of The Second Kind subframe delay 8 chips with respect to first kind subframe integral body.
In conjunction with the third aspect, in the third possible implementation, described processor specifically for:
Described setting-up time side-play amount is set to 700 microseconds.
In conjunction with above-mentioned any one possible implementation of the third aspect, in the 4th kind of possible implementation, described processor specifically for:
Send described Equations of The Second Kind subframe, in the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
Like this, processor has guaranteed that all OFDM symbols of the DwPTS of first kind subframe all can, for data traffic transmission, not need to do brachymemma and process.
Accompanying drawing explanation
Fig. 1 is TD-SCDMA5:2 and TD-LTE ascending-descending subframes configuration 2(3:1:1 under prior art) allocation plan;
Fig. 2 is the special subframe expanded view of TD-LTE ascending-descending subframes configuration 2 under prior art;
Fig. 3 is the 9th OFDM symbol expanded view of DwPTS of TD-LTE ascending-descending subframes configuration 2 under prior art;
Fig. 4 A is that prior art modulated grade is the performance simulation figure that is applied to the sub-frame configuration method in bimodulus RRU at 16 o'clock;
Fig. 4 B is that prior art modulated grade is the performance simulation figure that is applied to the sub-frame configuration method in bimodulus RRU at 14 o'clock;
Fig. 5 is applied to carry out in dual mode system the flow chart of transfer of data in the embodiment of the present invention;
Fig. 6 is the conventional subframe structure figure of TD-SCDMA mechanism in the embodiment of the present invention;
Fig. 7 is the special subframe expanded view of TD-SCDMA5:2 and TD-LTE ascending-descending subframes configuration 2 in the embodiment of the present invention;
Fig. 8 is that in the embodiment of the present invention, TD-SCDMA5:2 and TD-LTE ascending-descending subframes configure 2 switching points and launch schematic diagrames;
Fig. 9 is the first structure chart that is applied to the data transmission device of dual mode system in the embodiment of the present invention;
Figure 10 is the second structure chart that is applied to the data transmission device of dual mode system in the embodiment of the present invention.
Embodiment
In order to solve in prior art as making the uplink and downlink timeslot of TD-SCDMA and the TD-LTE afterbody part symbol of DwPTS of TD-LTE that can coexist brachymemma, thereby affect the problem of the throughput of system of TD-LTE, in the embodiment of the present invention, provide a kind of data transmission method and device that is applied to dual mode system.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.
Consult shown in Fig. 5, in the embodiment of the present invention, the idiographic flow that is applied to carry out in dual mode system transfer of data is as follows:
Step 500: send the first kind subframe based on TD-LTE mechanism.
In the embodiment of the present invention, the transfer of data in dual mode system be take field and is carried out as unit.
Step 510: from the initial time of transmission first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed after N chip (chips) backward, start again to send Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
In the embodiment of the present invention, setting-up time side-play amount is traditionally arranged to be 700 μ s.
Preferably, in the embodiment of the present invention, when the Equations of The Second Kind subframe sending based on TD-SCDMA mechanism, front four subframes in this Equations of The Second Kind subframe can be postponed to N chips backward and send again.Fig. 6 shows the conventional subframe structure of TD-SCDMA mechanism, each conventional subframe is comprised of 864chips, duration is 675 μ s, wherein, business and signaling data are comprised of two blocks of data pieces, each data block is comprised of 352chips respectively, and training sequence (Midamble) is comprised of 144chips, and at the afterbody of each conventional subframe, has the GP of 16 chips.In the embodiment of the present invention, utilized just N chips in 16 chips of GP at the 4th subframe end, four subframe integral body Equations of The Second Kind subframe is from frame head position have been passed to N chips backward, made first kind subframe and Equations of The Second Kind subframe N the chips that stagger on time template.
Preferably, in the embodiment of the present invention, the best value of N is 8,, when sending Equations of The Second Kind subframe, the subframe of setting number in this Equations of The Second Kind subframe is postponed to 8 chips backward.
So, in the embodiment of the present invention, in the process of transmitting of Equations of The Second Kind subframe, from this Equations of The Second Kind subframe, the first duration forward starts the end time of UpPTS, just start to carry out descending sub frame to the conversion of sub-frame of uplink, wherein, the duration part that the end time that this first duration has comprised the UpPTS in Equations of The Second Kind subframe had more than the end time of the DwPTS in first kind subframe, and the duration part that has comprised this N chip.
In actual applications, TD-SCDMA5:2 and TD-LTE adopt ascending-descending subframes configuration 2(special subframe configuration 6) be the most frequently used a kind of configuration, below, with this example that is configured to, above-described embodiment is further detailed
Consult shown in Fig. 7, first send the first kind subframe (hereinafter to be referred as TDL subframe) based on TD-LTE mechanism, after the time offset of 700 μ s, 8 chips in 16 chips of the 4th the subframe end place's transmitting-receiving transfer point in the Equations of The Second Kind subframe (hereinafter to be referred as TDS subframe) of utilization based on TD-SCDMA mechanism, front four subframe integral body of TDS subframe are postponed to 8chips(6.25 μ s backward) after just start to send, be equivalent to, the transmitting time of front four subframes of the TDS subframe in the embodiment of the present invention has been passed 700+6.25=706.25 μ s backward compared to the transmitting time of front four subframes of the TDS subframe under prior art, wherein remaining 8chips is located enough for receiving and dispatching a switching in the 4th of the TDS subframe in the embodiment of the present invention the subframe end.
Consult shown in Fig. 8, after front four subframe integral body of TDS subframe postpone 8 chips backward, the real time side-play amount of TDS subframe is 706.25 μ s, the time interval of TDS descending sub frame is 675 μ s, GP is 275 μ s, the time interval of TDL descending sub frame is 1000 μ s, and the time interval of DwPTS is
time, thus the physical end time of the UpPTS in TDS subframe than the physical end time of the DwPTS in TDL subframe, passed backward 706.25+675+275-1000-643.23=13.02 μ s.Because radio-frequency receiving-transmitting switching time of TDL subframe is 8 μ s, it is 4.6875 μ s that TDS subframe uplink shifts to an earlier date time of reception, known by calculating, the 9th OFDM symbol end in the DwPTS of TDL subframe is spaced apart 13.02-8-4.6875=0.3325 μ s > 0 apart from radio-frequency receiving-transmitting between switching time, so the end time of the UpPTS of TDL subframe from TDS subframe 13.02 μ s forward start, just can successful execution from descending sub frame, be switched to the operation of sub-frame of uplink, no longer need the tail symbol of brachymemma DwPTS to change for ascending-descending subframes, the all OFDM symbols of DwPTS may be used to bearing data service, thereby the data service function that has retained substantially the DwPTS of TDL subframe, improved the throughput of TD-LTE system.
Based on above-described embodiment, to consult shown in Fig. 9, in the embodiment of the present invention, the data transmission device that is applied to dual mode system comprises:
A kind of data transmission method that is applied to dual mode system providing based on the embodiment of the present invention, the embodiment of the present invention also provides the another kind of data transmission device that is applied to dual mode system, consults shown in Figure 10, and this device comprises: processor 100, wherein
In sum, in the embodiment of the present invention, utilize 8 chips in 16 chips GP of place, the 4th the subframe end transmitting-receiving transfer point in TDS subframe, by the time template of TDL subframe and the TDS subframe common mode 8chips that staggered, TDS subframe is delayed with respect to the frame structure integral body of TDL subframe, thereby the DwPTS that has fully guaranteed TDL subframe carries for data service, effectively improved the throughput of TD-LTE system.In addition, this data transmission method, while making TD-LTE and TD-SCDMA common mode, can support more configurations of special subframe more flexibly.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the embodiment of the present invention the embodiment of the present invention.Like this, if within these of the embodiment of the present invention are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (15)
1. a data transmission method that is applied to dual mode system, is characterized in that, while carrying out transfer of data in each field, comprising:
The first kind subframe of transmission based on TD SDMA Long Term Evolution TD-LTE mechanism;
From sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
2. the method for claim 1, is characterized in that, the subframe of setting number in the Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to N chip backward, comprising:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
3. the method for claim 1, is characterized in that, the subframe of setting number in the Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to N chip backward, comprising:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
4. the method for claim 1, is characterized in that, described setting-up time side-play amount is 700 microseconds.
5. the method as described in claim 1-4 any one, is characterized in that, sends described Equations of The Second Kind subframe, comprising:
In the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
6. a data transmission device that is applied to dual mode system, is characterized in that, comprising:
Communication unit, while carrying out transfer of data, for sending the first kind subframe based on TD SDMA Long Term Evolution TD-LTE mechanism in each field;
Scheduling unit, for from sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
7. device as claimed in claim 6, is characterized in that, described scheduling unit specifically for:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
8. device as claimed in claim 6, is characterized in that, described scheduling unit specifically for:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
9. device as claimed in claim 6, is characterized in that, described scheduling unit specifically for:
Described setting-up time side-play amount is set to 700 microseconds.
10. the device as described in claim 6-9 any one, is characterized in that, described scheduling unit specifically for:
Send described Equations of The Second Kind subframe, in the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
11. 1 kinds of data transmission devices that are applied to dual mode system, is characterized in that, comprising:
Processor, while carrying out transfer of data, for sending the first kind subframe based on TD SDMA Long Term Evolution TD-LTE mechanism in each field; From sending the initial time of described first kind subframe, after setting-up time side-play amount, the subframe of setting number in Equations of The Second Kind subframe based on TD SDMA TD-SCDMA mechanism is postponed after N chip backward, start again to send described Equations of The Second Kind subframe, wherein, N is positive integer, and 8≤N<16.
12. devices as claimed in claim 11, is characterized in that, described processor specifically for:
Front four subframes in Equations of The Second Kind subframe based on TD-SCDMA mechanism are postponed to N chip backward.
13. devices as claimed in claim 11, is characterized in that, described processor specifically for:
The subframe of setting number in Equations of The Second Kind subframe based on TD-SCDMA mechanism is postponed to 8 chips backward.
14. devices as claimed in claim 11, is characterized in that, described processor specifically for:
Described setting-up time side-play amount is set to 700 microseconds.
15. devices as described in claim 11-14 any one, is characterized in that, described processor specifically for:
Send described Equations of The Second Kind subframe, in the process of transmitting of described Equations of The Second Kind subframe, from described Equations of The Second Kind subframe, the first duration forward starts the end time of ascending pilot frequency subframe, starts to carry out descending sub frame to the conversion of sub-frame of uplink; Wherein, the duration part that the end time that described the first duration comprises ascending pilot frequency subframe in described Equations of The Second Kind subframe had more than the end time of descending pilot frequency subframe in described first kind subframe, and the duration part that comprises a described N chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747013.0A CN103648170B (en) | 2013-12-30 | 2013-12-30 | Data transmission method and data transmission device applied to dual-mode system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310747013.0A CN103648170B (en) | 2013-12-30 | 2013-12-30 | Data transmission method and data transmission device applied to dual-mode system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103648170A true CN103648170A (en) | 2014-03-19 |
| CN103648170B CN103648170B (en) | 2017-02-01 |
Family
ID=50253298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310747013.0A Active CN103648170B (en) | 2013-12-30 | 2013-12-30 | Data transmission method and data transmission device applied to dual-mode system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103648170B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078765A (en) * | 2015-01-29 | 2017-08-18 | 松下电器（美国）知识产权公司 | Wireless communications method and device |
| WO2018059481A1 (en) * | 2016-09-28 | 2018-04-05 | 中兴通讯股份有限公司 | Methods and devices for transmitting and receiving data |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9374148B2 (en) * | 2009-11-17 | 2016-06-21 | Qualcomm Incorporated | Subframe dependent transmission mode in LTE-advanced |
| CN102695280B (en) * | 2012-06-26 | 2014-12-31 | 华为技术有限公司 | System-compatible data frame conversion method and device |
-
2013
- 2013-12-30 CN CN201310747013.0A patent/CN103648170B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107078765A (en) * | 2015-01-29 | 2017-08-18 | 松下电器（美国）知识产权公司 | Wireless communications method and device |
| WO2018059481A1 (en) * | 2016-09-28 | 2018-04-05 | 中兴通讯股份有限公司 | Methods and devices for transmitting and receiving data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103648170B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109756980B (en) | Random access method, terminal and network equipment | |
| KR102297662B1 (en) | Methods of transmitting information, terminal equipment and network equipment | |
| CN100534027C (en) | Transmission method of time division duplexing system | |
| KR101680666B1 (en) | Signal transmitting and receiving method of repeater and repeater using the same | |
| US8942101B2 (en) | Method for relaying data performed by a relay station in wireless communication system based on TDD | |
| CN101282168B (en) | Transmission method and system for TDD mobile communication system to share time wireless frame | |
| CN102946304B (en) | The time division duplex transmission method of digital handset | |
| KR20100120287A (en) | Realizing fdd capability by leveraging existing tdd technology | |
| EP3285530B1 (en) | Methods and devices for transmitting data | |
| US20110096702A1 (en) | Method for sending the physical broadcast channel in a time division duplex system | |
| KR101982958B1 (en) | Method and apparatus for data transmission in a time division duplex system | |
| JP7259064B2 (en) | Communication method and communication device | |
| US10230482B2 (en) | Radio transceiver | |
| CN102783077A (en) | Apparatus and method for scheduling in carrier aggregated communication systems based on a transmit-receive-frequency gap band | |
| US20140169318A1 (en) | Radio base station and communication control method | |
| US8228856B2 (en) | NodeB and method for transmitting control and scheduling information | |
| CN102148784A (en) | Communication method, system and device between base station and relay station in relay system | |
| CN102724749B (en) | Method, terminal and base station for uplink-downlink frame synchronization | |
| WO2018048053A1 (en) | Method for transmitting/receiving signal in wireless communication system and device therefor | |
| CN103648170A (en) | Data transmission method and data transmission device applied to dual-mode system | |
| WO2021035576A1 (en) | Wireless signal transmission method and apparatus, and storage medium | |
| CN103262638A (en) | Wireless base station, wireless terminal, and communication control method | |
| CN103491041B (en) | synchronization method, base station and terminal | |
| CN107800522B (en) | Method and device in wireless communication | |
| CN101431366B (en) | Data transmission method of TDD system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |