CN101399606A - Method, system and apparatus for wireless frame transmission in time division duplexing mobile communication system - Google Patents
Method, system and apparatus for wireless frame transmission in time division duplexing mobile communication system Download PDFInfo
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Abstract
The invention discloses a method for wireless frame transmission in a time division duplex mobile communication system. A wireless frame period transmitted in the time division duplex mobile communication system comprises a pair of uplink and downlink time slot switching points. A wireless frame period comprises two fields, wherein, a first field comprises a first uplink and downlink time slot switching point in the pair of the uplink and downlink time slot switching points. A second uplink and downlink time slot switching point is positioned at a location at any guard period behind the location of the first uplink and downlink time slot switching point, and the specific location depends on the configuration of the cell uplink and downlink time slot. The method of the wireless frame transmission in the time division duplex mobile communication system can effectively reduce switching guard period (GP) cost and improve the wireless frame transmission efficiency in the case of large coverage and overlarge coverage of a base station.
Description
Technical field
The present invention relates to field of data transmission, relate in particular to a kind of method, system and device of time division duplex mobile communication system radio frame transmission.
Background technology
At Long Term Evolution (Long Term Evolution; LTE) in the technology; low bit rate rate time division duplex (LowChip Rate-Time Division Duplexing; LCR-TDD) frame structure has write standard as LTE TDD Type2 frame structure; as shown in Figure 1; in LTE TDD Type2 frame structure; each 10ms radio frames (Radio Frame) is divided into two identical fields (Half-frame); each field comprises 7 conventional time slots (TimeSlot) and 3 special time slots; each conventional time slot TSI (0≤I≤6) comprises several OFDMs (Orthogonal Frequency Division Multiplexing; OFDM) symbol is formed; the purposes of special time slot is the same with original LCR TDD mode: descending pilot frequency time slot (DownlinkPilot Time Slot; DwPTS) as the transmission of downlink synchronous signal; protection is (GuardPeriod at interval; protection when GP1) being used for downlink transfer and being transformed into uplink at interval; and uplink pilot time slot (UplinkPilot Time Slot is UpPTS) as up access at random.In conventional time slot, conventional time slot TS0 is used for downlink data transmission, and TS1 is used for transmitting uplink data.
As previously mentioned, in each 10ms radio frames, include two pairs of uplink and downlink timeslot switching points, the time slot switching point DUSP of the downstream-to-upstream in first 5ms field and be up to descending time slot switching point UDSP and (be used for uplink and downlink timeslot separately, it be defined as DUSP and UDSP also meets true as shown in the figure at this by a transfer point.), there is same a pair of time slot switching point at second 5ms field, two pairs of corresponding two groups of special time slots of uplink and downlink timeslot switching point comprise two downstream-to-upstream switching guard interval GP.
Since the protection interval determination coverage of base station, in the frame structure as shown in Figure 1, the protection at interval duration of GP is 50us, can only support the 7.5km (coverage of the light velocity * 50us/2=7.5km).In actual applications, increase base station range if desired, then need to increase the GP duration.As shown in Figure 2, in the prior art, for supporting the large coverage of base station, former GP and three time slots of UpPTS, TS1 can be merged as new GP (insert at random in the continuous ascending time slot after TS2 reaches and finish), duration is 866.66us, can support the coverage of about 130km, the interior GP expense of radio frames this moment is 17.33% (866.66us/5ms).
Further, in order to support the super large coverage more than the 200km, as shown in Figure 3, former GP can be merged as new GP (insert at random in the continuous ascending time slot after TS3 reaches and finish) with UpPTS, TS1, four time slots of TS2, duration is 1541.66us, can support the coverage of about 230km, the interior GP expense of radio frames this moment is 30.83% (1541.66us/5ms).
As previously mentioned, existing LTE TDD Type2 frame structure, it is the cycle that its uplink and downlink timeslot branch is equipped with the 5ms field, and a pair of uplink and downlink timeslot switching point promptly is set in each 5ms field, the protection of a corresponding downstream-to-upstream is GP at interval.(this protection duration at interval is directly proportional with base station range for Time Division Duplexing, TDD) know-why according to time division duplex.When existing big covering of frame structure support or super large covered, owing to need to be provided with long GP in every 5ms field, the GP expense was bigger, reduces the efficient of transfer of data.
Summary of the invention
The embodiment of the invention provides a kind of method, system and device of time division duplex mobile communication system radio frame transmission, can save protection expense at interval, improves the efficient of transfer of data.
The method of a kind of time division duplex mobile communication system radio frame transmission that the embodiment of the invention provides, this method comprises:
A wireless frame period of transmitting in time division duplex mobile communication system comprises a pair of uplink and downlink timeslot switching point.
The embodiment of the invention discloses a kind of time division duplex mobile communication system, comprise,
The base station is used for sending downlink data or control signaling by radio frames to user terminal, receives user terminal by upstream data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Configuration module, be used for coverage according to the base station, calculate the duration of GP under the described coverage, select the wireless frame structure configuration of described GP duration correspondence, and informing base station is configured into line data transmitting-receiving according to described frame structure, by CBCH described frame structure configuration informed that user terminal is configured into the transmitting-receiving of line data according to described frame structure;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives the base station by downlink data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
Transmitting element and receiving element are drawn together in a kind of base station that the embodiment of the invention provides,
Described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal;
Described receiving element is used to receive user terminal by upstream data or control signaling that radio frames sends, accepts the frame structure configuration signal that configuration module sends;
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, it is configurable to come downwards to up switching GP duration.
A kind of configuration module that the embodiment of the invention provides comprises computing unit and communication unit,
Described computing unit is used for the duration according to the coverage calculating GP of base station, selects the frame structure configuration of the duration correspondence of described GP;
Described communication unit is used for base station and user terminal are informed in described frame structure configuration.
A kind of user terminal that the embodiment of the invention provides comprises transmitting element and receiving element,
Described transmitting element is used for sending upstream data or control signaling by radio frames to the base station,
Described receiving element is used to receive the base station by downlink data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, it is configurable to come downwards to up switching GP duration.
The embodiment of the invention discloses a kind of time division duplex mobile communication system, comprise,
The base station is used for sending downlink data or control signaling by radio frames to user terminal, receives upstream data or control signaling that user terminal sends by radio frames;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives downlink data or control signaling that the base station sends by radio frames;
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
Transmitting element and receiving element are drawn together in a kind of base station that the embodiment of the invention provides,
Described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal;
Described receiving element is used to receive upstream data or the control signaling that user terminal sends by radio frames, and described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
A kind of user terminal that the embodiment of the invention provides comprises transmitting element and receiving element,
Described transmitting element is used for sending upstream data or control signaling by radio frames to the base station,
Described receiving element is used to receive downlink data or the control signaling that the base station sends by radio frames, and described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
The embodiment of the invention is provided with a pair of uplink and downlink timeslot switching point in a wireless frame period; under big covering in base station and super large covering scene; because in a wireless frame period; downlink data and upstream data only need once switch; effectively save switching guard interval GP expense, improved radio frame transmission efficient.
Description of drawings
Fig. 1 is a prior art LTE TDD Type2 frame structure schematic diagram;
The protection that Fig. 2 supports 130km to cover for prior art is provided with schematic diagram at interval;
The protection that Fig. 3 supports 230km to cover for prior art is provided with schematic diagram at interval;
Fig. 4 is the frame structure schematic diagram of a pair of switching point in the embodiment of the invention 10ms radio frames;
The protection that Fig. 5 supports 130km to cover for embodiment of the invention 10ms assignment period is provided with schematic diagram at interval;
The protection that Fig. 6 supports 230km to cover for embodiment of the invention 10ms assignment period is provided with schematic diagram at interval;
A kind of radio frame transmission system schematic that Fig. 7 provides for the embodiment of the invention;
The another kind of radio frame transmission system schematic that Fig. 8 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention is the distribution of the cycle carrying out uplink and downlink timeslot with a radio frames; by a pair of uplink and downlink timeslot switching point is set in a wireless frame period; can effectively save protection expense at interval when the coverage in the base station increases, improve the efficient of radio frame transmission.
In LTE TDD Type2 frame structure; the fixedly duration of a radio frames is 10ms; comprise that two durations are the field of 5ms; by a pair of uplink and downlink timeslot switching point only is set in whole 10ms radio frames; the protection of a corresponding downstream-to-upstream is GP at interval; when the coverage of base station increases the duration that needs increase GP, can save protection expense at interval effectively, improve the efficient of radio frame transmission.
In LTE TDD Type2 frame structure; a pair of uplink and downlink timeslot switching point only is set in whole 10ms radio frames; be included in the time slot switching point that a downstream-to-upstream is set in first 5ms field; the protection of a corresponding downstream-to-upstream at interval; the position of second switching point is provided with according to the configuration of sub-district uplink and downlink timeslot; simultaneously at second 5ms field with three special time slot (descending pilot frequency time slot DwPTS; protection is GP at interval; uplink pilot time slot UpPTS) merge into one crack (Short TimeSlot) in short-term, be used for/downlink data or control signaling transmission.
In the mode that the embodiment of the invention provides, the expense of GP be under the prior art frame structure GP expense 50%.Described in explanation after a while, it is that a pair of time slot switching point up and down only is set in the cycle that embodiment provided by the invention mainly reflects with the 10ms radio frames, improves the efficiency of transmission of wireless frame data under big covering scene.
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
See also Fig. 4, Fig. 4 is the frame structure schematic diagram that the embodiment of the invention is provided for a pair of switching point in the 10ms radio frames.Wherein, in embodiments of the present invention, the 10ms radio frames is divided into the field of two 5ms, comprises first 5ms field and second 5ms field.In the radio frames of 10ms, has only a pair of switching point; comprise downstream-to-upstream time slot switching point DUSP and be up to descending time slot switching point UDSP; the protection of a corresponding downstream-to-upstream is GP at interval; and at second 5ms field three special time slots are merged into a crack TS in short-term, be used to transmit data or control signaling.
As shown in Figure 4, protection GP duration at interval is 50us, can only support the coverage of 7.5km.In actual applications, in order to support the large coverage of base station, need the increase protection duration of GP at interval, increase the mode of GP duration, the mode that can adopt GP, UpPTS and conventional time slot to merge as new protection interval GP realizes.
Below being under the big covering scene in base station, is the protection interval method to set up in time slot allocation cycle with 10ms, and the big covering scene in base station refers to that the base station covers the scope about 130km, and present embodiment covers the 130km scope with the base station and describes, as shown in Figure 5:
Be the distribution of the cycle carrying out uplink and downlink timeslot with the 10ms radio frames, above-mentioned 10ms wireless frame period comprises: first 5ms field and second 5ms field.Above-mentioned first 5ms field, comprise seven conventional time slot TSI, I ∈ { 0,1, ..., the integer of 6} and three special time slot descending pilot frequency time slot DwPTS, protection be GP, uplink pilot time slot UpPTS at interval, and as a new GP, duration is 866.66us with three time slots merging of GP and UpPTS, TS1 of above-mentioned first 5ms field; Above-mentioned second 5ms field; comprise seven conventional time slot TSI; I ∈ { 0; 1; ...; the integer of 6} and three special time slot descending pilot frequency time slot DwPTS, protection be GP, uplink pilot time slot UpPTS at interval, and three special time slot DwPTS, GP and UpPTS are merged as a crack in short-term, and this can transmit data or control signaling in the crack in short-term.
Further describe the process that the up-downgoing data are switched below in the 10ms radio frames.
At first 5ms field, TS0 is as the descending time slot transmitting downlink data, new GP duration is 866.66us, support the coverage of 130km, DUSP is the time slot switching point of downstream-to-upstream, finish the switching of downlink data to upstream data, insert at random in TS2 and later continuous ascending time slot and finish, TS2～TS6 is as the ascending time slot transmit ascending data; Second 5ms field TS0 and in short-term crack TS through being up to descending time slot switching point UDSP, finish the switching of ascending time slot as ascending time slot to descending time slot, TS1～TS6 follows as descending time slot, carries out the transmission of next 10ms wireless frame data.
Do not need to consume GP owing to be up to the switching of descending time slot,, all should be included in the scope of the present invention as long as satisfy all positions that are up to the descending time slot switching point of spirit of the present invention so the position of UDSP is not subjected to the restriction of present embodiment.
Further specify below under the super large covering scene of base station; with 10ms is the protection interval method to set up in time slot allocation cycle; base station super large covering scene refers to that the base station covers the scope about 230km, and present embodiment covers the 230km scope with the base station and describes, as shown in Figure 6:
Be the distribution of the cycle carrying out uplink and downlink timeslot with the 10ms radio frames, above-mentioned 10ms wireless frame period comprises: first 5ms field and second 5ms field.Above-mentioned first 5ms field, comprise seven conventional time slot TSI, I ∈ { 0,1, ..., the integer of 6} and three special time slot descending pilot frequency time slot DwPTS, protection be GP, uplink pilot time slot UpPTS at interval, and as a new GP, duration is 1541.66us with four time slots merging of GP and UpPTS, TS1, TS2 of above-mentioned first 5ms field; Above-mentioned second 5ms field; comprise seven conventional time slot TSI; I ∈ { 0; 1; ...; the integer of 6} and three special time slot descending pilot frequency time slot DwPTS, protection be GP, uplink pilot time slot UpPTS at interval, and three special time slot DwPTS, GP and UpPTS are merged as a crack in short-term, and this can transmit data or control signaling in the crack in short-term.
Further describe the process that the up-downgoing data are switched below in the 10ms radio frames.
At first 5ms field, TS0 is as descending time slot, new GP duration is 1541.66us, support the coverage of 230km, DUSP is the time slot switching point of downstream-to-upstream, finish the switching of downlink data to upstream data, insert at random in TS3 and later continuous ascending time slot and finish, TS3～TS6 is as ascending time slot; Second 5ms field TS0 and in short-term crack TS through being up to descending time slot switching point UDSP, finish the switching of ascending time slot as ascending time slot to descending time slot, TS1～TS6 follows as descending time slot, carries out the transmission of next 10ms wireless frame data.
Do not need to consume GP owing to be up to the switching of descending time slot,, all should be included in the scope of the present invention as long as satisfy all positions that are up to the descending time slot switching point of spirit of the present invention so the position of UDSP is not subjected to the restriction of present embodiment.
As shown in Figure 7, a kind of time division duplex mobile communication system of providing of the embodiment of the invention comprises base station, configuration module and user terminal.
Wherein, the base station is used for sending downlink data or control signaling by radio frames to user terminal, sends the base station range signaling to configuration module, receive user terminal by upstream data or control signaling that radio frames sends, be used to receive the frame structure configuration signal that configuration module sends;
Configuration module, be used for coverage according to the base station, calculate the duration of GP under this coverage, select corresponding frame structure configuration according to the GP duration, by broadcast channel base station and user terminal are informed in the frame structure configuration, make base station and user terminal be configured into the transmitting-receiving of line data according to described frame structure;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives the base station by downlink data or control signaling that radio frames sends, receives the frame structure configuration signal of configuration module.
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, it is configurable to come downwards to up switching GP duration.
The base station of the embodiment of the invention comprises transmitting element and receiving element.Wherein, described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal, described receiving element is used to receive upstream data or the control signaling that user terminal sends by radio frames, receive the frame structure configuration signal that configuration module sends, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, it is configurable to come downwards to up switching GP duration.
The configuration module of the embodiment of the invention comprises computing unit and communication unit.Wherein, described computing unit is used for the duration according to the coverage calculating GP of base station, selects the frame structure configuration of the duration correspondence of described GP, and described communication unit is used for base station and user terminal are informed in described frame structure configuration.
The user terminal of the embodiment of the invention comprises transmitting element and receiving element.Wherein, described transmitting element is used for sending upstream data or control signaling by radio frames to the base station, described receiving element is used to receive downlink data or the control signaling that the base station sends by radio frames, receive the frame structure configuration signal that configuration module sends, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, it is configurable to come downwards to up switching GP duration.
As shown in Figure 8, a kind of time division duplex mobile communication system of providing of the embodiment of the invention comprises base station and user terminal.
Wherein, the base station is used for sending downlink data or control signaling by radio frames to user terminal, receives upstream data or control signaling that user terminal sends by radio frames;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives downlink data or control signaling that the base station sends by radio frames;
Described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
The base station of the embodiment of the invention comprises transmitting element and receiving element.Wherein, described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal, described receiving element is used to receive upstream data or the control signaling that user terminal sends by radio frames, and described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
The user terminal of the embodiment of the invention comprises transmitting element and receiving element.Wherein, described transmitting element is used for sending upstream data or control signaling by radio frames to the base station, described receiving element is used to receive downlink data or the control signaling that the base station sends by radio frames, and described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
As shown in table 1 below, for being assignment period with the 5ms field and be the GP expense contrast of assignment period under different coverages with the 10ms radio frames, as can be seen, along with coverage increases, employing is that assignment period can be saved the GP expense effectively with the 10ms radio frames, thereby improves radio frame transmission efficient.
Table 1 5ms and the GP expense contrast of 10ms time slot allocation cycle under different the covering
To sum up; adopt the beneficial effect of the embodiment of the invention to be; under big covering in base station and super large coverage scene; because in a wireless frame period; downlink data and upstream data only need once switch; effectively save the expense of switching guard interval GP, improved radio frame transmission efficient.
Obviously; the above only is the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (13)
1, a kind of method of time division duplex mobile communication system radio frame transmission is characterized in that, a wireless frame period of transmitting in time division duplex mobile communication system comprises a pair of uplink and downlink timeslot switching point.
2, the method for claim 1 is characterized in that, a described wireless frame period comprises two fields, wherein, in first field, comprises first uplink and downlink timeslot switching point in the described a pair of uplink and downlink timeslot switching point.
3, method as claimed in claim 2 is characterized in that, the position of second uplink and downlink timeslot switching point is arbitrary protection position at interval afterwards, first uplink and downlink timeslot switching point position in the described a pair of uplink and downlink timeslot switching point.
4, the method for claim 1 is characterized in that, the special time slot of second field is used to transmit up-downgoing data or control signaling in the described radio frames, and the data of being transmitted are the position that upstream or downstream depend on second uplink and downlink timeslot switching point.
5, the method for claim 1; it is characterized in that; under the big covering scene in base station, in the wireless frame period of being transmitted, utilize the protection interval GP of first field and three time slots of uplink pilot time slot UpPTS, conventional time slot TS1 to merge as a new GP.
6, the method for claim 1 is characterized in that, under the super large covering scene of base station, in the wireless frame period of being transmitted, the GP of first field is merged as a new GP with UpPTS, TS1, four time slots of conventional time slot TS2.
7, a kind of time division duplex mobile communication system is characterized in that, comprise,
The base station is used for sending downlink data or control signaling by radio frames to user terminal, receives user terminal by upstream data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Configuration module, be used for coverage according to the base station, calculate the duration of GP under the described coverage, select the wireless frame structure configuration of described GP duration correspondence, and informing base station is configured into the line data transmitting-receiving according to described frame structure, by CBCH described frame structure configuration is informed that the described frame structure of user terminal foundation is configured into the transmitting-receiving of line data, wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives the base station by downlink data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends.
8, a kind of base station is characterized in that, comprising: transmitting element and receiving element,
Described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal;
Described receiving element is used to receive user terminal by upstream data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, and it is configurable to come downwards to up switching GP duration.
9, a kind of configuration module is characterized in that, comprises computing unit and communication unit,
Described computing unit is used for the duration according to the coverage calculating GP of base station, selects the frame structure configuration of the duration correspondence of described GP;
Described communication unit is informed base station and user terminal with described frame structure configuration.
10, a kind of user terminal is characterized in that, comprises transmitting element and receiving element,
Described transmitting element is used for sending upstream data or control signaling by radio frames to the base station;
Described receiving element is used to receive the base station by downlink data or control signaling that radio frames sends, receives the frame structure configuration signal that configuration module sends;
Wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period, and it is configurable to come downwards to up switching GP duration.
11, a kind of time division duplex mobile communication system is characterized in that, comprise,
The base station is used for sending downlink data or control signaling by radio frames to user terminal, receives upstream data or control signaling that user terminal sends by radio frames;
User terminal is used for sending upstream data or control signaling by radio frames to the base station, receives downlink data or control signaling that the base station sends by radio frames;
Wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
12, a kind of base station is characterized in that, comprising: transmitting element and receiving element,
Described transmitting element is used for sending downlink data or control signaling by radio frames to user terminal;
Described receiving element is used to receive upstream data or the control signaling that user terminal sends by radio frames;
Wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
13, a kind of user terminal is characterized in that, comprises transmitting element and receiving element,
Described transmitting element is used for sending upstream data or control signaling by radio frames to the base station;
Described receiving element is used to receive downlink data or the control signaling that the base station sends by radio frames;
Wherein, described radio frames comprises a pair of uplink and downlink timeslot switching point in one-period.
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| CN 200710175241 CN101399606B (en) | 2007-09-27 | 2007-09-27 | Method, system and apparatus for wireless frame transmission in time division duplexing mobile communication system |
| PCT/CN2008/001647 WO2009049480A1 (en) | 2007-09-27 | 2008-09-24 | A method, system and device for transmitting wireless frame in time division duplexing mobile communication system |
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| CN 200710175241 CN101399606B (en) | 2007-09-27 | 2007-09-27 | Method, system and apparatus for wireless frame transmission in time division duplexing mobile communication system |
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| CN110858795A (en) * | 2018-08-22 | 2020-03-03 | ***通信有限公司研究院 | Frame structure configuration method, network side equipment and user equipment |
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| KR20060005925A (en) * | 2004-07-14 | 2006-01-18 | 에스케이 텔레콤주식회사 | Method and system for generating switching timing signal for separating transmitting and receiving signal in rf repeater of mobile telecommunication network using tdd and odfm modulation |
| CN100566232C (en) * | 2005-08-08 | 2009-12-02 | 大唐移动通信设备有限公司 | The method of supporting changable cover by time division duplex system |
| CN101005305A (en) * | 2006-01-17 | 2007-07-25 | 上海原动力通信科技有限公司 | Transmitting method for time division duplex mobile communication system |
-
2007
- 2007-09-27 CN CN 200710175241 patent/CN101399606B/en active Active
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2008
- 2008-09-24 WO PCT/CN2008/001647 patent/WO2009049480A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111246576A (en) * | 2011-03-31 | 2020-06-05 | 华为技术有限公司 | Method, base station and user equipment for configuring subframes in time division duplex system |
| CN111246576B (en) * | 2011-03-31 | 2020-12-25 | 华为技术有限公司 | Method, base station and user equipment for configuring subframes in time division duplex system |
| CN109286938A (en) * | 2017-07-19 | 2019-01-29 | 中兴通讯股份有限公司 | A kind of method, base station and terminal for transmitting signal |
| CN110858795A (en) * | 2018-08-22 | 2020-03-03 | ***通信有限公司研究院 | Frame structure configuration method, network side equipment and user equipment |
| CN110858795B (en) * | 2018-08-22 | 2022-02-01 | ***通信有限公司研究院 | Frame structure configuration method, network side equipment and user equipment |
| CN110868722A (en) * | 2018-08-28 | 2020-03-06 | 大唐移动通信设备有限公司 | Method and device for increasing signal coverage distance |
| CN114460938A (en) * | 2022-01-20 | 2022-05-10 | 中国科学院计算技术研究所 | A unmanned transport vehicle control system that traveles for intelligent storage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101399606B (en) | 2013-04-03 |
| WO2009049480A1 (en) | 2009-04-23 |
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