CN103916900A - Special time slot configuration detecting method and device - Google Patents
Special time slot configuration detecting method and device Download PDFInfo
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- CN103916900A CN103916900A CN201310002069.3A CN201310002069A CN103916900A CN 103916900 A CN103916900 A CN 103916900A CN 201310002069 A CN201310002069 A CN 201310002069A CN 103916900 A CN103916900 A CN 103916900A
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Abstract
The invention provides a special time slot configuration detecting method and device, and relates to the field of communications. The method comprises the steps that configuration is conducted on a special time slot; an uplink frame sent by a terminal is received; if the uplink frame comprises feedback information of the special time slot from the terminal, it is determined that the terminal supports the length configuration of the special time slot, and otherwise, it is determined that the terminal does not support the length configuration of the special time slot. By means of the special time slot configuration detecting method and device, whether the terminal supports the special time slot or not can be judged.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of detection method and device of special time slot configuration.
Background technology
TD-LTE system physical layer frame structure as shown in Figure 1.The radio frames of each 10ms comprises two fields, and each field comprises 5 subframes, and subframe lengths is 1ms.As a kind of TDD system, the up-downgoing of TD-LTE system is used same carrier frequency, and the transmission of up-downgoing separates by time resource.For avoiding the interference of downstream signal to upward signal, need to be that protection interval (Guard Period, GP) is set in the up moment in down conversion.
There is multiple time slot ratio configuration in TD-LTE frame structure, can be divided into 5ms cycle and 10ms cycles two class, to support flexibly the up-downgoing business of different proportionings.In every 5ms periodic frame structure, subframe 1 and subframe 6 fixed configurations are special subframe; In every 10ms periodic frame structure, subframe 1 fixed configurations is special subframe.Each special subframe is made up of DwPTS, GP and UpPTS3 special time slot.Subframe 0, subframe 5 and DwPTS time slot are always for downlink transfer; UpPTS and subsequent first subframe are always for uplink.The proportioning of special time slot DwPTS, GP and UpPTS can be adjusted flexibly, with the concrete up-downgoing transfer resource ratio of flexible configuration, better supports the type of service of different up-downgoing rate requirement.
Special subframe taking symbol as unit has been listed 9 kinds of configurations that special subframe is common, as shown in table 1 below:
Table 1
In the time of TD-LTE system and TD-SCDMA system adjacent frequency coexistence, two system wireless frames need strict time slot alignment, to prevent the interference between different system up/down row transmission.The ratio of uplink subframe to downlink subframe of considering TD-SCDMA system is 2UL:4DL, TD-LTE system needs the ratio of uplink subframe to downlink subframe of corresponding employing 1UL:3DL, and it is that 3:9:2 or 3:10:1 are corresponding with it that special time slot proportional arrangement generally adopts the symbol proportioning of DwPTS, GP and UpPTS.As shown in Figure 2, under this special time slot proportional arrangement, the up-downgoing transmission region in TD-LTE and TD-SCDMA radio frames does not have overlapping the time slot alignment relation schematic diagram of TD-SCDMA frame and employing 3:9:2TD-LTE radio frames, and two systems can realize adjacent frequency coexistence.
In order to ensure to carry out adjacent frequency coexistence with the TD-SCDMA system that adopts 2UL:4DL uplink and downlink timeslot proportioning, TD-LTE system wireless frame needs the uplink and downlink timeslot proportioning of corresponding employing 1UL:3DL, and special time slot proportional arrangement generally adopts 3:9:2 or 3:10:1 corresponding with it.Though the special time slot proportional arrangement of 3:9:2 or 3:10:1 can meet the requirement that TD-SCDMA strictly aligns with TD-LTE time slot completely, but DwPTS only takies 3 symbols, cannot transmit downlink traffic channel and then improve downlink throughput capacity.If quote the special time slot proportional arrangement that other standard did not define, may cause terminal cannot read the data in frame.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of detection method and device of time slot configuration, can realize do not need to allow terminal to report its support the ability of special time slot configuration, the ability of can sense terminals whether supporting special time slot in base station side, exploitativeness is strong.
For solving the problems of the technologies described above, embodiments of the invention provide a kind of detection method of time slot configuration, comprise the steps:
Special time slot is configured;
The uplink frame that receiving terminal sends;
If there is the feedback information of described terminal pins to described special time slot in described uplink frame, determine that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
Wherein, the described step that special time slot is configured comprises:
Configurating downlink pilot time slot DwPTS is 6 symbols;
At the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS;
At rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.
Wherein, the described step that special time slot is configured also comprises:
Configuration protection interval GP is 6 symbols;
Collocating uplink pilot time slot UpPTS is 2 symbols.
Wherein, if having the feedback information of described terminal pins to described special time slot in described uplink frame, definite described terminal is supported the length configuration of described special time slot, otherwise, determine that the step that described terminal does not support the length of described special time slot to configure comprises:
Resolve described uplink frame, obtain analysis result;
If described analysis result comprises: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, definite described terminal is supported the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
Wherein, if described analysis result comprises: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, determine that the step that described terminal supports the length of described special time slot to configure comprises: detection is dispatched to described terminal N time in base station, obtains N analysis result;
Described analysis result is judged:
If S=N, definite described terminal is supported the length configuration of described special time slot;
If S=0, definite described terminal is not supported the length configuration of described special time slot;
If 0 < S < N, zero clearing S, re-starts N scheduling to described terminal and detects, and new analysis result is judged; Wherein said S is the number of times that gets the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS during N scheduling detects.
Wherein, said method also comprises:
If definite described terminal is supported the length configuration of described special time slot, configure to described terminal transmission downlink service data according to the length of this special time slot.
Embodiments of the invention also provide a kind of checkout gear of time slot configuration, comprising:
Configuration module, for being configured special time slot;
Receiver module, the uplink frame sending for receiving terminal;
Judge module, if for judging that described uplink frame has the feedback information of described terminal pins to described special time slot, described judge module determines that described terminal supports the length configuration of described special time slot, otherwise described judge module determines that described terminal do not support the length configuration of described special time slot.
Wherein, described configuration module specifically for: configurating downlink pilot time slot DwPTS is 6 symbols; At the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS; At rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.
Wherein, described configuration module also for: configuration protection interval GP is 6 symbols; Collocating uplink pilot time slot UpPTS is 2 symbols.
Wherein, described judge module comprises:
Analyzing sub-module, for resolving described uplink frame, obtains analysis result;
Judge submodule, if comprise for the described analysis result of judgement: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, determine that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
Wherein, described judge module also comprises: monitoring submodule, for: make base station N time described terminal be dispatched to detection, obtain N analysis result; Described analysis result is judged: if S=N, definite described terminal is supported the length configuration of described special time slot; If S=0, definite described terminal is not supported the length configuration of described special time slot; If 0 < S < N, zero clearing S, re-starts N scheduling to described terminal and detects, and new analysis result is judged; Wherein said S is the number of times that obtains the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS during N scheduling detects.
Wherein, said apparatus also comprises:
Transport module, if definite described terminal is supported the length configuration of described special time slot, configures to described terminal transmission downlink service data according to the length of this special time slot.
Such scheme of the present invention has following beneficial effect:
Method of the present invention and device are by the configuration structure of configuration special time slot, according to whether comprising the feedback information for this special time slot in the uplink frame of the terminal receiving, judge whether terminal possesses the ability of supporting special time slot configuration, this scheme does not need terminal to make any change, the ability that can whether support in base station side sense terminals special time slot, exploitativeness is strong.
Brief description of the drawings
Fig. 1 is the schematic diagram of frame structure in prior art;
Fig. 2 is the schematic diagram of the length configuration of special time slot in prior art;
Fig. 3 is the schematic flow sheet of embodiments of the invention 1 method;
Fig. 4 is that ratio provided by the invention is the length configuration schematic diagram of the special time slot of 6:6:2;
The detail flowchart of the method that Fig. 5 provides for the embodiment of the present invention 1;
The structural representation of the device that Fig. 6 provides for the embodiment of the present invention 2.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment 1
As shown in Figure 3, a kind of detection method of time slot configuration, comprises the steps:
Step 1, is configured special time slot;
Step 2, the uplink frame that receiving terminal sends;
Step 3, if having the feedback information of described terminal pins to described special time slot in described uplink frame, determines that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
This embodiment of the present invention is by the length configuration of configuration special time slot, according to whether comprising the feedback information for this special time slot in the uplink frame of the terminal receiving, judge whether terminal possesses the ability of supporting special time slot configuration, this scheme does not need terminal to make any change, the ability that can whether support in base station side sense terminals special time slot, exploitativeness is strong.
As shown in Figure 4, on above-mentioned embodiment illustrated in fig. 31 basis, wherein, step 1 can comprise:
Step 11, configurating downlink pilot time slot DwPTS is 6 symbols;
Step 12, at the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS;
Step 13, at rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.In a concrete application, in order to improve the downlink throughput capacity of downlink traffic channel, ensureing under the adjacent frequency coexistence condition of TD-SCDMA and TD-LTE two system time gap alignment, should expand the symbolic number of DwPTS, the symbol of DwPTS is expanded to 6 by original 3, if the special time slot configuration structure in frame is 6:6:2, the symbol proportioning of DwPTS, GP and UpPTS is 6:6:2.It may be noted that 6:6:2 is the wherein a kind of of special time slot configuration, can also be 7:5:2 etc. in embodiments of the invention.For the situation of long CP, can also be 5:5:2, if when 5:5:2, the DCI information of configurating terminal in front 2 symbols of DwPTS, the Physical Downlink Shared Channel PDSCH of rear 3 symbol configurating terminals, wherein, DCI information is still used to indicate the transmission location of the described PDSCH in DwPTS.
In addition, on above-mentioned embodiment illustrated in fig. 31 basis, wherein, above-mentioned steps 3 can comprise:
N scheduling detection carried out to described terminal in base station, obtains N analysis result;
Described analysis result is judged:
If S=N, definite described target terminal is supported described special time slot;
If S=0, definite described target terminal is not supported described special time slot;
If 0 < S < N, zero clearing S, re-starts N scheduling to described terminal and detects, and new analysis result is judged; Wherein said S is the number of times obtaining during N scheduling detects for the feedback information of the PDSCH of rear 3 symbol transmission of described DwPTS.
If it may be noted that the length configuration of terminal support special time slot, this terminal has possessed the ability of looking into the transmission location of the PDSCH of this terminal in DwPTS symbol by DCI information.
Preferably, after step 3, can also carry out:
Step 4, if definite described terminal is supported the length configuration of described special time slot, configures to described terminal transmission downlink service data according to the length of this special time slot.
The symbol ratio taking taking DwPTS, GP and UpPTS is below described in detail above-described embodiment 1 as the special time slot configuration structure (shown in Fig. 4) of 6:6:2:
As shown in Figure 5, comprising:
Step S201, base station configures the DCI(digital publishing rights mark of this terminal at front 3 symbols of DwPTS) information, at rear 3 symbols configuration PDSCH of DwPTS, wherein, DCI is used to indicate the transmission location of the PDSCH of this terminal in rear 3 DwPTS symbols;
Step S202, default base station to the scheduling of a terminal detect total degree N, the number of times that receives at present uplink frame is I and monitoring factor S, wherein said monitoring factor S is: the number of times that gets rear 3 the symbol transmission PDSCH feedback informations of terminal pins to described DwPTS in N scheduling detection;
Step S203, zero clearing I, S;
Step S204, the configuration structure of the special time slot by 6:6:2 receives the uplink frame of described terminal and I=I+1.
Step S205, dispatches detection to terminal;
Step S206, judges the feedback information that whether includes rear 3 the symbol transmission PDSCHs of terminal to this DwPTS in described uplink frame;
Be, carry out step S208, carry out step S208, S=S+1, and judge whether I=N;
No, carry out step S207, S remains unchanged;
If I ≠ N, gets back to step S204, and repeating step S204 step afterwards, do not repeat at this;
If I=N, carries out step S209, judge the value of S; If S=0, carries out step S210; If S=N, carries out step S211;
Step S210, network side judges that this terminal do not support the length configuration of 6:6:2 special time slot, is follow-uply configured to this terminal transmission business by 3:9:2; Wherein 3:9:2 is configured to the configuration in 3GPP R9 specification version, in the time of TD-LTE system and TD-SCDMA system adjacent frequency coexistence, satisfied the most basic, and the strict time slot alignment of two system wireless frames standard, to prevent the interference between different system up/down row transmission.
Step S211, network side judges that this terminal supports the length configuration of 6:6:2 special time slot, is follow-uply configured to this terminal transmission business according to 6:6:2.
If 0 < S < N, gets back to step S203, and repeating step S203 step afterwards, do not repeat at this.
The scheme of the present embodiment is without terminal is made any change, just can judge whether terminal possesses the ability of supporting special time slot configuration, and the length allocation ratio that has further adopted special time slot is 6:6:2, this structure is not only when TD-LTE system and TD-SCDMA system adjacent frequency coexistence, radio frames can strictly be alignd separately, contrast structure proportion in prior art is the time slot of 3:9:2 or 3:10:1 simultaneously, has increased the quantity of DwPTS, thereby strengthens the throughput of downlink service data transmission; In addition by described terminal is repeatedly dispatched to detection, when all while all feedback result being detected, just assert that terminal supports special time slot, carry out again afterwards the transmission of this special time slot, thereby ensure having good stability in transmitting procedure.
Embodiment 2
As shown in Figure 6, a kind of checkout gear of time slot configuration, comprising:
Configuration module, for being configured special time slot;
Receiver module, the uplink frame sending for receiving terminal;
Judge module, if having the feedback information of described terminal pins to described special time slot in described uplink frame, determines that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
First, configuration module, at the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS; At rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.
Receiver module afterwards, the uplink frame that receiving terminal sends, if there is the feedback information of described terminal pins to described special time slot in described uplink frame, judge module determines that described terminal supports the length configuration of described special time slot, otherwise described judge module determines that described terminal do not support the length configuration of described special time slot.
Configuration module also for: configuration protection interval GP is 6 symbols; Collocating uplink pilot time slot UpPTS is 2 symbols, thereby makes the length of special time slot be configured to DwPTS, and the shared symbol ratio of GP and UpPTS is 6:6:2.
Wherein, described judge module comprises:
Analyzing sub-module, for resolving described uplink frame, obtains analysis result;
Judge submodule, if comprise for the described analysis result of judgement: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, determine that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
In judge module, can also comprise in addition:
One monitoring submodule, for making base station N time described terminal be dispatched to detection, obtains N analysis result; If include in a described N analysis result: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, definite described terminal is supported the length configuration of described special time slot.
After judgement completes, if terminal has the ability of supporting this special time slot, can configure to described terminal transmission downlink service data according to the length of this special time slot by transport module.
The device of the present embodiment, make any change without terminal, just can judge whether terminal possesses the ability of the length configuration of supporting special time slot, and the length allocation ratio that has further adopted special time slot is 6:6:2, this structure is not only when TD-LTE system and TD-SCDMA system adjacent frequency coexistence, radio frames can strictly be alignd separately, contrast special time slot length allocation ratio in prior art is 3:9:2 or 3:10:1 simultaneously, increase the quantity of DwPTS, thereby strengthened the throughput of downlink service data transmission; This device is repeatedly dispatched detection to terminal in addition, and in the time that all detections are all received feedback result, transport module just uses the transfer of data of carrying out of this special time slot, thereby this device has good stability in data transmission procedure.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. a detection method for time slot configuration, is characterized in that, comprises the steps:
Special time slot is configured;
The uplink frame that receiving terminal sends;
If there is the feedback information of described terminal pins to described special time slot in described uplink frame, determine that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
2. the detection method of time slot configuration according to claim 1, is characterized in that, the described step that special time slot is configured comprises:
Configurating downlink pilot time slot DwPTS is 6 symbols;
At the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS;
At rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.
3. the detection method of time slot configuration according to claim 2, is characterized in that, the described step that special time slot is configured also comprises:
Configuration protection interval GP is 6 symbols;
Collocating uplink pilot time slot UpPTS is 2 symbols.
4. the detection method of time slot configuration according to claim 1, it is characterized in that, if there is the feedback information of described terminal pins to described special time slot in described uplink frame, definite described terminal is supported the length configuration of described special time slot, otherwise, determine that the step that described terminal does not support the length of described special time slot to configure comprises:
Resolve described uplink frame, obtain analysis result;
If described analysis result comprises: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, definite described terminal is supported the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
5. the detection method of time slot configuration according to claim 4, it is characterized in that, if described analysis result comprises: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, determine that the step that described terminal supports the length of described special time slot to configure comprises:
Detection is dispatched to described terminal N time in base station, obtains N analysis result;
Described analysis result is judged:
If S=N, definite described terminal is supported the length configuration of described special time slot;
If S=0, definite described terminal is not supported the length configuration of described special time slot;
If 0 < S < N, zero clearing S, re-starts N scheduling to described terminal and detects, and new analysis result is judged; Wherein said S is the number of times that gets the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS during N scheduling detects.
6. according to the detection method of time slot configuration described in claim 2-5 any one, it is characterized in that, also comprise:
If definite described terminal is supported the length configuration of described special time slot, configure to described terminal transmission downlink service data according to the length of this special time slot.
7. a checkout gear for time slot configuration, is characterized in that, comprising:
Configuration module, for being configured special time slot;
Receiver module, the uplink frame sending for receiving terminal;
Judge module, if for judging that described uplink frame has the feedback information of described terminal pins to described special time slot, described judge module determines that described terminal supports the length configuration of described special time slot, otherwise described judge module determines that described terminal do not support the length configuration of described special time slot.
8. the checkout gear of time slot configuration according to claim 7, is characterized in that, described configuration module specifically for: configurating downlink pilot time slot DwPTS is 6 symbols; At the Downlink Control Information DCI of front 3 symbol configurating terminals of described DwPTS; At rear 3 symbol configures physical DSCH Downlink Shared Channel PDSCH of described DwPTS; Wherein, described DCI is used to indicate the transmission location of the described PDSCH in DwPTS.
9. the checkout gear of time slot configuration according to claim 8, is characterized in that, described configuration module also for: configuration protection interval GP is 6 symbols; Collocating uplink pilot time slot UpPTS is 2 symbols.
10. the checkout gear of time slot configuration according to claim 8, is characterized in that, described judge module comprises:
Analyzing sub-module, for resolving described uplink frame, obtains analysis result;
Judge submodule, if comprise for the described analysis result of judgement: the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS, determine that described terminal supports the length configuration of described special time slot, otherwise, determine that described terminal do not support the length configuration of described special time slot.
The checkout gear of 11. time slot configuration according to claim 10, is characterized in that, described judge module also comprises: monitoring submodule, for: make base station N time described terminal be dispatched to detection, obtain N analysis result; Described analysis result is judged: if S=N, definite described terminal is supported the length configuration of described special time slot; If S=0, definite described terminal is not supported the length configuration of described special time slot; If 0 < S < N, zero clearing S, re-starts N scheduling to described terminal and detects, and new analysis result is judged; Wherein said S is the number of times that obtains the feedback information of the PDSCH of rear 3 symbol transmission of terminal pins to described DwPTS during N scheduling detects.
The checkout gear of the time slot configuration described in 12. according to Claim 8-11 any one, is characterized in that, also comprises:
Transport module, if definite described terminal is supported the length configuration of described special time slot, configures to described terminal transmission downlink service data according to the length of this special time slot.
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| WO2018028621A1 (en) * | 2016-08-12 | 2018-02-15 | 中兴通讯股份有限公司 | Wireless signal transmission method and apparatus |
| US10992409B2 (en) | 2016-08-12 | 2021-04-27 | Zte Corporation | Wireless signal transmission method and device |
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| CN101567766A (en) * | 2008-04-25 | 2009-10-28 | 大唐移动通信设备有限公司 | Transmission method for confirming feedback information |
| CN102404850A (en) * | 2010-09-07 | 2012-04-04 | 中国移动通信集团设计院有限公司 | Configuration method and configuration device for special time slots in long term evolution (LTE) system |
| CN102457967A (en) * | 2010-10-28 | 2012-05-16 | 华为技术有限公司 | Data transmission method and equipment |
| CN102469059A (en) * | 2010-11-15 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for carrying demodulation reference signal |
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| CN101567766A (en) * | 2008-04-25 | 2009-10-28 | 大唐移动通信设备有限公司 | Transmission method for confirming feedback information |
| CN102404850A (en) * | 2010-09-07 | 2012-04-04 | 中国移动通信集团设计院有限公司 | Configuration method and configuration device for special time slots in long term evolution (LTE) system |
| CN102457967A (en) * | 2010-10-28 | 2012-05-16 | 华为技术有限公司 | Data transmission method and equipment |
| CN102469059A (en) * | 2010-11-15 | 2012-05-23 | 中兴通讯股份有限公司 | Method and device for carrying demodulation reference signal |
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| WO2018028621A1 (en) * | 2016-08-12 | 2018-02-15 | 中兴通讯股份有限公司 | Wireless signal transmission method and apparatus |
| US10992409B2 (en) | 2016-08-12 | 2021-04-27 | Zte Corporation | Wireless signal transmission method and device |
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