CN105763305B - A kind of data transmission method and device - Google Patents
A kind of data transmission method and device Download PDFInfo
- Publication number
- CN105763305B CN105763305B CN201410790342.8A CN201410790342A CN105763305B CN 105763305 B CN105763305 B CN 105763305B CN 201410790342 A CN201410790342 A CN 201410790342A CN 105763305 B CN105763305 B CN 105763305B
- Authority
- CN
- China
- Prior art keywords
- data
- ofdm symbol
- lte
- region
- downlink
- 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.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of data transmission method and devices, this method comprises: reserving the low time delay region of bandwidth in timesharing long term evolution TD-LTE subframe；Determine the resource that downlink LTE user data and scheduled uplink time delay sensitive data are transmitted in TD-LTE downlink subframe, wherein, when the uplink time delay sensitive data is transmitted in the first area that an orthogonal frequency division multiplex OFDM symbol of downlink subframe corresponds to the low time delay region: not transmitting data in other regions in the OFDM symbol except first area, or it is greater than the second area transmission downlink LTE user data of predetermined threshold with the bandwidth granularity of first area in the OFDM symbol, and bandwidth region is protected not transmit data between first area and second area, or uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area；The dispatch deal of data transmit-receive is carried out according to the resource of identified downlink subframe.Method of the invention effectively reduces the problem of uplink and downlink is interfered in the same OFDM symbol.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of data transmission methods and device.
Background technique
Third generation partner program (3rd Generation Partnership Project, 3GPP) long term evolution
(Long Term Evolution, LTE) system and its enhancing LTE-Advanced can be based on two kinds of standard work: one is frequencies
Divide duplexing (Frequency Division Duplexing, FDD) standard, referred to as FDD LTE, corresponding frame knot as shown in Figure 1
Structure, downlink transfer and uplink are carried on pairs of frequency spectrum (two different frequency bands), and downlink transfer and uplink frequency division are double
Work avoids mutual band interference；Another kind is time division duplex (Time Division Duplexing, TDD) standard,
Referred to as TD-LTE, corresponding frame structure as shown in Figure 2, i.e. downlink transfer and uplink are carried on same frequency point, downlink transfer
With uplink common-frequency time division duplex, mutual time slot interference is avoided.
For the ease of dispatching, simplifying Feedback Design and equipment realization etc., TD-LTE and FDD LTE is maximally maintained
The consistency of frame structure design is as depicted in figs. 1 and 2 all made of isometric subframe (Sub-frame) structure: each subframe
For 1ms, the time slot comprising two 0.5ms；10 subframes constitute the radio frames (Radio Frame) of 10ms.Not with FDD LTE
Same to be, TD-LTE also introduces special subframe.Special subframe is by descending pilot frequency time slot (Downlink Pilot Time
Slot, DwPTS), protection interval (Guard Period, GP) and uplink pilot time slot (Uplink Pilot Time Slot,
UpPTS) three parts form.
No matter TD-LTE or FDD LTE system, the smallest scheduling unit of user be resource block (Resource Block,
RB), usually once one user of scheduling occupies several RB on frequency domain, occupies a subframe, i.e. 1ms in time domain.Such as Fig. 3 institute
Show, is the resource allocation schematic diagram of user in LTE system.
With enriching for type of business, there are some pairs of time delay ratios at present in the development of the business such as Internet of Things and car networking
More sensitive business, it is desirable that time delay can achieve in Millisecond, such as car networking for Emergency avoidance between vehicle end to end
Interactive service.
In existing LTE system, with reference to Fig. 3, after current subframe is scheduled, if delay sensitive business needs to transmit number
According to, it needs to wait at least for 1ms, for FDD LTE, since downlink subframe and sub-frame of uplink are sent on a different frequency simultaneously, under
One subframe can be scheduled；For TD-LTE, if next subframe is the subframe of opposite direction (for example, current delay sensitive
Business needs uplink, but subsequent time may be downlink subframe), then it needs until the longer time.And based on existing
Some round-trip delay (Round Trip Time, RTT) structures --- the minimum 8ms of RTT, if time-delayed sensitive data needs weight
It passes, then needs to wait 8ms just and can be carried out re-transmission, the time of waiting is long.
In existing LTE frame structure, the basic unit dispatched in time domain is an OFDM (Orthogonal Frequency
Division Multiplexing, OFDM) symbol, but be not in up and down inside the same OFDM symbol of same subframe
Capable switching.In the i.e. same subframe, between uplink and downlink or by timing separation, i.e. TDD system, sub-frame of uplink is under
Row subframe time division multiplexing；It is distinguished by frequency domain, i.e. FDD system, uplink and downlink pass through different frequency separations, upper line frequency
It needs to reserve certain protection interval between band and downstream bands, to avoid interference.
But for TDD system, due to if it is intended to upstream data can be quickly dispatched to, then needing in a downlink
Upstream data can be transmitted in subframe, equally, be also required to that downlink data can be dispatched in sub-frame of uplink.Therefore it needs one
The conversion of uplink and downlink is considered inside a subframe.But occur a problem therewith, i.e., exist up and down inside the same OFDM symbol
Capable transmission can have serious interference in the edge of switching, is not directed in the same OFDM symbol in current system
The interference of downlink solves technology.
Summary of the invention
In order to avoid uplink and downlink interferes the influence transmitted to data in the same OFDM symbol, the embodiment of the invention provides
A kind of data transmission method and device.
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that
One aspect according to an embodiment of the present invention provides a kind of data transmission method, is applied to long term evolution LTE system
In system, which comprises
The low time delay region of bandwidth is reserved in timesharing long term evolution TD-LTE subframe, the low time delay region is used for
Propagation delay time sensitive data；
Determine the money that downlink LTE user data and scheduled uplink time delay sensitive data are transmitted in TD-LTE downlink subframe
Source, wherein transmitted in the first area that an orthogonal frequency division multiplex OFDM symbol of downlink subframe corresponds to the low time delay region
When the uplink time delay sensitive data:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits
Downlink LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area；
The dispatch deal of data transmit-receive is carried out according to the resource of identified downlink subframe.
Wherein, the method also includes:
Determine the money that uplink LTE user data and scheduled downlink time-delayed sensitive data are transmitted in TD-LTE sub-frame of uplink
Source, wherein sub-frame of uplink an OFDM symbol correspond to the low time delay region third region on transmit the downlink when
When prolonging sensitive data:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol is transmitted
Uplink LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
The dispatch deal of data transmit-receive is carried out according to the resource of identified sub-frame of uplink.
Wherein, the resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, comprising:
It is intended to the downlink LTE user data of transmission, is mapped in corresponding OFDM symbol and sends, wherein is sending institute
Before stating OFDM symbol, it will be used for transmission the uplink time delay sensitive data in the OFDM symbol and be not used for transmission data
Position punching.
Wherein, the method also includes: network side sends in down control channel and is used to indicate in TD-LTE subframe
The instruction information of data punch position in OFDM symbol；
The resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, further includes:
When send the data mapping of data, according to the instruction information, select except the data punch position
Other positions mapped.
Wherein, downlink LTE user data is transmitted in the determining TD-LTE downlink subframe and scheduled uplink time delay is sensitive
The resource of data, comprising:
Adjacent OFDM in TD-LTE downlink subframe, before the OFDM symbol for transmitting the uplink time delay sensitive data
On symbol, protection interval is reserved with for the uplink time delay sensitive data.
Wherein, in the OFDM symbol in TD-LTE subframe there are when the bandwidth protection interval, it is described according to determining
Downlink subframe resource carry out data transmit-receive dispatch deal, comprising:
Base station is when dispatching LTE user data, being used for transmission in the resource of LTE user data in TD-LTE subframe,
Resource of the priority scheduling far from the low time delay region.
Wherein, the resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, further includes:
When the corresponding part OFDM symbol in the region that LTE user in TD-LTE subframe is scheduled is perforated, LTE is reduced
The modulation and coding strategy MCS order that user data uses.
Other side according to an embodiment of the present invention provides a kind of data transmission method, is applied to long term evolution LTE
In system, comprising:
The low time delay region of bandwidth is reserved in timesharing long term evolution TD-LTE subframe, the low time delay region is used for
Propagation delay time sensitive data；
First carrier and the second carrier wave are polymerize, wherein in the time domain, the sub-frame of uplink of the first carrier is corresponding
In the downlink subframe of second carrier wave, the downlink subframe of the first carrier corresponds to the sub-frame of uplink of second carrier wave；
By the subframe in the first carrier and the second carrier wave after polymerization, transmits LTE user data and scheduled time delay is quick
Feel the resource of data, wherein when uplink time delay sensitive data is by low in the sub-frame of uplink in first carrier and the second carrier wave
Prolong region to be transmitted, downlink time-delayed sensitive data passes through the low time delay area in the downlink subframe in first carrier and the second carrier wave
It is transmitted in domain.
Wherein, subframe structure of the first carrier using the configuration 1 in TD-LTE system, the second carrier wave use
The subframe structure of configuration 0 in TD-LTE system, and the second carrier wave has 2 subframes relative to first carrier delay.
Other side according to an embodiment of the present invention provides a kind of data transmission device, comprising:
Configuration module, it is described for reserving the low time delay region of bandwidth in timesharing long term evolution TD-LTE subframe
Low time delay region is used for transmission time-delayed sensitive data；
First transmission module transmits downlink LTE user data and scheduled uplink for determining in TD-LTE downlink subframe
The resource of time-delayed sensitive data, wherein correspond to the low time delay area in an orthogonal frequency division multiplex OFDM symbol of downlink subframe
When the uplink time delay sensitive data is transmitted in the first area in domain:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits
Downlink LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area；
First scheduler module, for carrying out the dispatch deal of data transmit-receive according to the resource of identified downlink subframe.
Wherein, described device further include:
Second transmission module transmits uplink LTE user data and scheduled downlink for determining in TD-LTE sub-frame of uplink
The resource of time-delayed sensitive data, wherein correspond to the third region in the low time delay region in an OFDM symbol of sub-frame of uplink
When the upper transmission downlink time-delayed sensitive data:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol is transmitted
Uplink LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
Second scheduler module, for carrying out the dispatch deal of data transmit-receive according to the resource of identified sub-frame of uplink.
Wherein, first scheduler module includes:
First scheduling unit is mapped in corresponding OFDM symbol concurrent for being intended to the downlink LTE user data of transmission
Send, wherein before sending the OFDM symbol, will be used for transmission in the OFDM symbol uplink time delay sensitive data and
It is not used for the position punching of transmission data.
Wherein, described device further include:
Indicating module sends in down control channel for network side and is used to indicate OFDM symbol in TD-LTE subframe
The instruction information of data punch position；
First scheduler module further include:
Second scheduling unit, for when send the data mapping of data, according to the instruction information, described in selection
Other positions except data punch position are mapped.
Wherein, first transmission module includes:
First transmission unit is used in TD-LTE downlink subframe, in the OFDM for transmitting the uplink time delay sensitive data
In adjacent OFDM symbol before symbol, protection interval is reserved with for the uplink time delay sensitive data.
Wherein, in the OFDM symbol in TD-LTE subframe there are when the bandwidth protection interval, the first scheduling mould
Block includes:
Third scheduling unit is used for transmission LTE in TD-LTE subframe for base station when dispatching LTE user data
In the resource of user data, resource of the priority scheduling far from the low time delay region.
Wherein, first scheduler module further include:
4th scheduling unit, the corresponding OFDM symbol quilt in region being scheduled for the LTE user in TD-LTE subframe
When punching, the modulation and coding strategy MCS order that LTE user data uses are reduced.
Other side according to an embodiment of the present invention provides a kind of data transmission device, is applied to long term evolution LTE
In system, comprising:
Configuration module, for reserving the low time delay region of bandwidth in TD-LTE subframe, the low time delay region is used
In propagation delay time sensitive data；
Aggregation module, for first carrier and the second carrier wave to polymerize, wherein in the time domain, the first carrier
Sub-frame of uplink correspond to the downlink subframe of second carrier wave, the downlink subframe of the first carrier corresponds to described second and carries
The sub-frame of uplink of wave；
Transmission module, for by polymerization after first carrier and the second carrier wave in subframe, transmission LTE user data and
The resource of scheduled time-delayed sensitive data, wherein uplink time delay sensitive data passes through the uplink in first carrier and the second carrier wave
Low time delay region in subframe is transmitted, and downlink time-delayed sensitive data passes through the downlink subframe in first carrier and the second carrier wave
In low time delay region transmitted.
Wherein, subframe structure of the first carrier using the configuration 1 in TD-LTE system, the second carrier wave use
The subframe structure of configuration 0 in TD-LTE system, and the second carrier wave has 2 subframes relative to first carrier delay.
The embodiment of the present invention the utility model has the advantages that by TD-LTE subframe reserve bandwidth low time delay region, energy
It is enough that quick response is carried out to time delay sensitive traffic, reduce the waiting time, reduces time delay；And method involved in the invention reduces
Uplink and downlink interference problem in low time delay transmission frame-form in the same OFDM symbol, so that the uplink and downlink of this low time delay structure
It can work at the same time.
Detailed description of the invention
Fig. 1 is FDD LTE frame structure schematic diagram in the prior art；
Fig. 2 is TD-LTE frame structure schematic diagram in the prior art；
Fig. 3 is the resource allocation schematic diagram of user in LTE system in the prior art；
Fig. 4 is the flow chart of the data transmission method of the embodiment of the present invention one；
Fig. 5 is the schematic diagram that low time delay region is reserved in TD-LTE subframe of the embodiment of the present invention one；
Fig. 6 is the first structural schematic diagram of the TD-LTE downlink subframe of the embodiment of the present invention one；
Fig. 7 is second of structural schematic diagram of the TD-LTE downlink subframe of the embodiment of the present invention one；
Fig. 8 is the third structural schematic diagram of the TD-LTE downlink subframe of the embodiment of the present invention one；
Fig. 9 is the flow chart of the data transmission method of the embodiment of the present invention two；
Figure 10 is the structural schematic diagram of the data transmission method corresponding intrument of the embodiment of the present invention one；
Figure 11 is the structural schematic diagram of the data transmission method corresponding intrument of the embodiment of the present invention two；
Figure 12 is the low time delay area schematic reserved in FDD LTE downlink subframe；
Figure 13 is the low time delay area schematic reserved in FDD LTE sub-frame of uplink
Figure 14 is the low time delay area schematic reserved in TD-LTE downlink subframe；
Figure 15 is the low time delay area schematic reserved in TD-LTE sub-frame of uplink；
Figure 16 is that the down control channel in low time delay region transmits schematic diagram；
Figure 17 is that the time-delayed sensitive data of TD-LTE system transmits schematic diagram.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
Embodiment one
The embodiment provides a kind of data transmission method, this method is applied in LTE system, wherein the party
Method can be applied particularly to terminal or base station in LTE system.As shown in figure 4, being the data transmission method of the embodiment of the present invention
Flow chart, this method includes the following steps:
Step 401, the low time delay region of bandwidth, the low time delay are reserved in timesharing long term evolution TD-LTE subframe
Region is used for transmission time-delayed sensitive data.
Specifically, enriching with type of business, the development of the business such as Internet of Things and car networking, it is some right to occur at present
Time delay, can than the data that more sensitive business (can be referred to as delay sensitive business), corresponding delay sensitive business need to transmit
To be referred to as time-delayed sensitive data.Time delay can achieve in Millisecond, such as car networking delay sensitive business need end to end
Interactive service for Emergency avoidance between vehicle.TD-LTE frame structure of this step based on the prior art, in TD-LTE subframe
In reserve bandwidth low time delay region, which can be used for the transmission of time-delayed sensitive data, to guarantee clock synchronization
Prolong sensitive traffic quick response, reduce the waiting time, reduces time delay.
Further, which can include at least a resource block (Resource Block, RB) on frequency domain,
I.e. minimum can be 1 RB, or multiple RB can be carried out in specific application according to the type of delay sensitive business
It determines.
When the low time delay region in TD-LTE subframe includes multiple RB, multiple RB can be continuous on frequency domain, can also
With discontinuous.As shown in figure 5, to reserve the schematic diagram in low time delay region in TD-LTE subframe.Wherein, wireless shown in Fig. 5
In frame, low time delay region in the 4-7 subframe includes a RB on frequency domain, when low in 1-3 and 8-10 subframe
Prolong region on frequency domain comprising two RB, and two RB that the low time delay region in the 2nd subframe includes on frequency domain are to connect
Continuous, two RB that the low time delay region in other subframes includes on frequency domain are discontinuous.In addition, with reference to Fig. 5, different sons
Position of the low time delay region on frequency domain in frame can be identical, can also be changed according to presetting rule.
Step 402, it determines and transmits downlink LTE user data and scheduled uplink time delay sensitivity number in TD-LTE downlink subframe
According to resource, wherein downlink subframe an orthogonal frequency division multiplex OFDM symbol correspond to the low time delay region the firstth area
When the uplink time delay sensitive data is transmitted in domain:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits
Downlink LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area.
In order to better understand the step, reference can be made to Fig. 6~Fig. 8, wherein it is quick to represent uplink time delay by the UL in Fig. 6~Fig. 8
Feel data, the bandwidth region where 1RB is the low time delay region namely first area of reserved bandwidth, in low time delay
The DL that region occurs represents downlink time-delayed sensitive data, represents downlink LTE user data in the DL that other regions occur.
It is corresponding when Fig. 6 is does not transmit data in other regions for removing first area in the OFDM symbol referring to Fig. 6
TD-LTE downlink subframe schematic illustration；Fig. 7 is to be greater than predetermined threshold with the bandwidth granularity of first area in the OFDM symbol
Second area transmit downlink LTE user data, and protect bandwidth region not transmit between first area and second area
When data, corresponding TD-LTE downlink subframe schematic illustration；Fig. 8 is other regions that first area is removed in the OFDM symbol
When transmitting uplink time delay sensitive data, corresponding TD-LTE downlink subframe schematic illustration.
Step 403, the dispatch deal of data transmit-receive is carried out according to the resource of identified downlink subframe.
In the method for the embodiment of the present invention, to time delay sensitive traffic quick response, reduces the waiting time, reduce time delay
While, and solve the problems, such as that uplink and downlink is interfered in the same OFDM symbol.
Further, the method for the embodiment of the present invention further include: determine transmission uplink LTE user in TD-LTE sub-frame of uplink
The resource of data and scheduled downlink time-delayed sensitive data, wherein when an OFDM symbol of sub-frame of uplink corresponds to described low
Prolong when transmitting the downlink time-delayed sensitive data on the third region in region:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol is transmitted
Uplink LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
The dispatch deal of data transmit-receive is carried out according to the resource of identified sub-frame of uplink.
Specifically, the step is similar with the step 402 in the above embodiment of the present invention, only explains in above-mentioned steps 402
Be in the downlink subframe of TD-LTE data transmission the case where, this step and above-mentioned steps 402 are similar, herein no longer go to live in the household of one's in-laws on getting married
It states.
Optionally, the step 403 in the above embodiment of the present invention includes:
It is intended to the downlink LTE user data of transmission, is mapped in corresponding OFDM symbol and sends, wherein is sending institute
Before stating OFDM symbol, it will be used for transmission the uplink time delay sensitive data in the OFDM symbol and be not used for transmission data
Position punching.
Optionally, the method for the above embodiment of the present invention further include:
Network side is sent in down control channel is used to indicate in TD-LTE subframe data punch position in OFDM symbol
Instruction information；The resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, further includes:
When send the data mapping of data, according to the instruction information, select except the data punch position
Other positions mapped.
For example, can be used to transmit in each RB data OFDM symbol have 11 (assuming that there is 3 OFDM symbols to be used as
Control domain), remove the exclusive reference signal CRS of the cell of 2 port port, then there are 120 resource element RE can in each RB
For transmitting the data of LTE user.Wherein, specific algorithm are as follows: one RB pairs, account for 12 subcarriers on frequency domain, account for 14 in time domain
A OFDM symbol subtracts 3 OFDM symbols for being used as control domain, remains 11, then subtracts CRS 12 RE of occupancy of 2 port, then
There is 12*11-12=120 RE.In the case shown in fig. 6, there are 3 OFDM symbols to be struck off, therefore biography can be used in each RB
The RE of transmission of data is 84 (120-12*3=84).I.e. in the case where identical modulating-coding order, the transmission block that can be transmitted is big
Small TBS can become smaller.It also can only be chosen in the data receiver of receiving end, base station or LTE user for upstream or downstream accordingly
The data for not being perforated or polluting are handled, wherein the data polluted refer to an OFDM symbol in TD-LTE subframe
On, other regions in addition to reserved low time delay region should transmit LTE user data, but transmit delay sensitive number
According to the LTE user data in i.e. expression region is contaminated.
Optionally, downlink LTE user data is transmitted in the determining TD-LTE downlink subframe and scheduled uplink time delay is quick
Feel the resource of data, comprising: in TD-LTE downlink subframe, can the OFDM symbol for transmitting the uplink time delay sensitive data it
In preceding adjacent OFDM symbol, protection interval is reserved with for the uplink time delay sensitive data.
Optionally, in the OFDM symbol in TD-LTE subframe there are when the bandwidth protection interval, according to identified
The dispatch deal that the resource of downlink subframe carries out data transmit-receive includes: base station when dispatching LTE user data, in TD-LTE subframe
In be used for transmission in the resource of LTE user data, resource of the priority scheduling far from the low time delay region.
It is further low, the dispatch deal of data transmit-receive is carried out according to the resource of identified downlink subframe further include: in TD-
When the corresponding part OFDM symbol in the region that LTE user in LTE subframe is scheduled is perforated, reduces LTE user data and use
Modulation and coding strategy MCS order.Specifically, when the transformat used by determining that LTE user is transmitted, such as MCS rank
When number, when discovery has time-delayed sensitive data to be present in the subframe, MCS order used by LTE user is reduced, such as do not examining
When worry is perforated, which can use IMCS=N, IMCSIt indicates the number of MCS, that is, n-th MCS is used, when known to base station
When thering is the time-delayed sensitive data of opposite direction to be scheduled, the MCS order Δ of use is reduced, the I of the LTE user is adjustedMCS=N-
Δ, N and Δ are all integer, and the position for needing to be perforated is more, and Δ is bigger, and base station can determine Δ using certain algorithm
Occurrence.
Embodiment two
Other side according to an embodiment of the present invention additionally provides the method for another data transmission.
As shown in figure 9, the flow chart of the method for another data transmission provided in an embodiment of the present invention, this method comprises:
Step 901, the low time delay region of bandwidth is reserved in TD-LTE subframe, the low time delay region is used for transmission
Time-delayed sensitive data.
Wherein, specifically, which is identical with the step 401 in embodiment one, and details are not described herein.
Step 902, first carrier and the second carrier wave are polymerize, wherein in the time domain, the uplink of the first carrier
Subframe corresponds to the downlink subframe of second carrier wave, and the downlink subframe of the first carrier corresponds to the upper of second carrier wave
Row subframe.
Step 903, it by the subframe in the first carrier and the second carrier wave after polymerization, transmits LTE user data and makes a reservation for
Time-delayed sensitive data resource, wherein uplink time delay sensitive data passes through the sub-frame of uplink in first carrier and the second carrier wave
In low time delay region transmitted, downlink time-delayed sensitive data passes through in the downlink subframe in first carrier and the second carrier wave
It is transmitted in low time delay region.
Specifically, table 1 is time division duplex uplink downlink structure in the prior art, referring to table 1, wherein described first carries
The subframe structure of the configuration 1 in TD-LTE system can be used in wave, and the configuration 0 in TD-LTE system can be used in second carrier wave
Subframe structure, and the second carrier wave has 2 subframes relative to first carrier delay.See from table 1, if two kinds of configuration start bits
Set be alignment, then only the uplink and downlink of subframe 4 and subframe 9 be it is reversed, other subframes are equidirectional transmission.In order to reach
The reversed i.e. complementary effect of uplink and downlink, needs the frame timing of two carrier waves to deviate 2 subframes, i.e., in carrier wave 2 by the subframe of carrier wave 1
Position of 2 position as oneself subframe 0.Polymerize by the carrier wave of this complementation, each Transmission Time Interval (TTI,
Transmission Time Interval) can there be the transmission of uplink and downlink, therefore pass through the load of transformation carrying data
Wave, time-delayed sensitive data can be scheduled and complete at any time feedback, then there is no need to transmit phase in downlink and uplink subframe
The time-delayed sensitive data of opposite direction would not also have that time-delayed sensitive data and LTE user data interfere with each other.
It is to be appreciated that proportion described above is only a kind of citing, the program is capable of forming suitable for any two
The TDD carrier wave polymerization of complementary time slot proportion.
1 time division duplex uplink downlink structure of table
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||
| 0 | 5ms | D | S | U | U | U | D | S | U | U | U |
| 1 | 5ms | D | S | U | U | D | D | S | U | U | D |
| 2 | 5ms | D | S | U | D | D | D | S | U | D | D |
| 3 | 10ms | D | S | U | U | U | D | D | D | D | D |
| 4 | 10ms | D | S | U | U | D | D | D | D | D | D |
| 5 | 10ms | D | S | U | D | D | D | D | D | D | D |
| 6 | 5ms | D | S | U | U | U | D | S | U | U | D |
When this programme is suitable for TDD carrier wave simultaneously and polymerize with the carrier wave of a pair of FDD, that is, when corresponding to the downlink subframe of TDD,
The downlink data of the downlink subframe transmission low time delay of TDD, uplink time delay sensitive data is transmitted with the sub-frame of uplink of FDD；It is corresponding
When the sub-frame of uplink of TDD, downlink time-delayed sensitive data is transmitted with the downlink subframe of FDD.Principle is same as above.
Certainly be also not necessarily limited to polymerization must be FDD carrier wave, if some carrier wave of polymerization can do flexible uplink and downlink
Switching, it is simultaneous to can be uplink and downlink, is similar to FDD；It is also possible to uplink and downlink not exist simultaneously, but can be according to TDD
Uplink/downlink do corresponding lower/upper row transmission.The program is equally on probation.
Embodiment three
Corresponding to the data transmission method of the embodiment of the present invention one, the embodiment of the invention also provides a kind of transmission of data to fill
It sets, is applied in long term evolution LTE system.Referring to Figure 10, described device 10 includes configuration module 101, the first transmission module 102
With the first scheduler module 103, wherein
The configuration module 101, for reserving the low time delay area of bandwidth in timesharing long term evolution TD-LTE subframe
Domain, the low time delay region are used for transmission time-delayed sensitive data.
First transmission module 102 is transmitted downlink LTE user data and is made a reservation for for determining in TD-LTE downlink subframe
Uplink time delay sensitive data resource, wherein downlink subframe an orthogonal frequency division multiplex OFDM symbol correspond to it is described low
When the uplink time delay sensitive data is transmitted in the first area in time delay region:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits
Downlink LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area.
First scheduler module 103, for carrying out the scheduling of data transmit-receive according to the resource of identified downlink subframe
Processing.
Wherein, described device 10 further include:
Second transmission module transmits uplink LTE user data and scheduled downlink for determining in TD-LTE sub-frame of uplink
The resource of time-delayed sensitive data, wherein correspond to the third region in the low time delay region in an OFDM symbol of sub-frame of uplink
When the upper transmission downlink time-delayed sensitive data:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol is transmitted
Uplink LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
Second scheduler module, for carrying out the dispatch deal of data transmit-receive according to the resource of identified sub-frame of uplink.
Wherein, first scheduler module 103 includes:
First scheduling unit is mapped in corresponding OFDM symbol concurrent for being intended to the downlink LTE user data of transmission
Send, wherein before sending the OFDM symbol, will be used for transmission in the OFDM symbol uplink time delay sensitive data and
It is not used for the position punching of transmission data.
Wherein, described device 10 further include:
Indicating module sends in down control channel for network side and is used to indicate OFDM symbol in TD-LTE subframe
The instruction information of data punch position；
First scheduler module 103 further include:
Second scheduling unit, for when send the data mapping of data, according to the instruction information, described in selection
Other positions except data punch position are mapped.
Wherein, first transmission module 102 includes:
First transmission unit is used in TD-LTE downlink subframe, in the OFDM for transmitting the uplink time delay sensitive data
In adjacent OFDM symbol before symbol, protection interval is reserved with for the uplink time delay sensitive data.
Wherein, in the OFDM symbol in TD-LTE subframe there are when the bandwidth protection interval, the first scheduling mould
Block 103 includes:
Third scheduling unit is used for transmission LTE in TD-LTE subframe for base station when dispatching LTE user data
In the resource of user data, resource of the priority scheduling far from the low time delay region.
Further, first scheduler module 103 further include:
4th scheduling unit, the corresponding part OFDM symbol in region being scheduled for the LTE user in TD-LTE subframe
When number being perforated, the modulation and coding strategy MCS order that LTE user data uses are reduced.
Example IV
Corresponding to the data transmission method of the embodiment of the present invention two, the embodiment of the invention also provides a kind of transmission of data to fill
It sets, is applied in long term evolution LTE system.Referring to Figure 11, described device 11 includes configuration module 111, aggregation module 112 and passes
Defeated module 113, wherein
Configuration module 111, for reserving the low time delay region of bandwidth, the low time delay region in TD-LTE subframe
It is used for transmission time-delayed sensitive data.
Aggregation module 112, for first carrier and the second carrier wave to polymerize, wherein in the time domain, described first carries
The sub-frame of uplink of wave corresponds to the downlink subframe of second carrier wave, and the downlink subframe of the first carrier corresponds to described second
The sub-frame of uplink of carrier wave.
Transmission module 113, for transmitting LTE number of users by the subframe in the first carrier and the second carrier wave after polymerization
According to the resource with scheduled time-delayed sensitive data, wherein uplink time delay sensitive data passes through in first carrier and the second carrier wave
Low time delay region in sub-frame of uplink is transmitted, and downlink time-delayed sensitive data passes through the downlink in first carrier and the second carrier wave
It is transmitted in low time delay region in subframe.
Wherein, subframe structure of the first carrier using the configuration 1 in TD-LTE system, the second carrier wave use
The subframe structure of configuration 0 in TD-LTE system, and the second carrier wave has 2 subframes relative to first carrier delay.
Above embodiments illustrate the present invention be how in same TD-LTE subframe simultaneous transmission uplink and downlink data, can
To find out, the embodiment of the present invention passes through low time delay area transmissions and the subframe direction by the way that low time delay region is arranged in subframe
Opposite time-delayed sensitive data, reduces the time delay of the data, and reduces the interference between uplink and downlink.It is more clear in order to help
The low time delay region for understanding the embodiment of the present invention of Chu is described in detail further below.
For FDD LTE system, since ascending-descending subframes can be dispatched simultaneously, only frequency is different, that is, carries out anti-
Ascending-descending subframes required for presenting all are available at any time, therefore downlink delay sensitive number can be transmitted in downlink DL subframe
According to transmission uplink time delay sensitive data in uplink UL subframe.
As shown in Figure 12~Figure 13, for the schematic diagram for reserving low time delay region in FDD LTE subframe.Wherein, under will be each
Fractional bandwidth in row subframe is determined as being used for transmission the low time delay region of downlink time-delayed sensitive data, and each uplink is sub
Fractional bandwidth in frame is determined as being used for transmission the low time delay region of uplink time delay sensitive data.
For TD-LTE system, if upstream data can be transmitted in downlink subframe, can be transmitted in sub-frame of uplink
Downlink data, then when needing to transmit uplink time delay sensitive data, even if be currently downlink subframe can also with fast dispatch, when
When needing to transmit downlink time-delayed sensitive data, even if being currently that sub-frame of uplink can also be with fast dispatch.Therefore, in TD-LTE system
In, it needs to consider the conversion of uplink and downlink in the inside of a subframe.
Meanwhile considering the problem of compatibility, the OFDM symbol that the signal for needing to transmit always in TD-LTE system occupies needs
It is fixed as the transmission of respective direction, for example, in downlink subframe, public reference signal (Common Reference
Signal, CRS) and control channel where OFDM symbol need to be fixed as downlink transfer, in sub-frame of uplink, detection with reference to letter
OFDM symbol where number (Sounding Reference Signal, SRS) needs to be fixed as uplink.
(1), it is directed to downlink subframe, the fractional bandwidth in each downlink subframe can be determined as to be used for transmission delay sensitive
The low time delay region of data；Wherein, CRS and the OFDM symbol where control channel in the low time delay region in each downlink subframe
It is used for transmission downlink time-delayed sensitive data, except where CRS and control channel in the low time delay region in each downlink subframe
Other OFDM symbols except OFDM symbol are used for transmission uplink time delay sensitive data or downlink time-delayed sensitive data.
Specifically, being reserved under the premise of downlink to the protection interval of uplink in downlink subframe, such as Figure 14 institute
Show, the protection interval for downlinking to uplink is an OFDM symbol, the corresponding column for being labeled as G, and is labeled as being classified as U
The OFDM symbol for transmitting upstream data is labeled as the OFDM symbol for being classified as transmission downlink data of D.In this case, at most
There are 3 OFDM symbols that can be used to transmit uplink time delay sensitive data, respectively OFDM symbol 6,10 and 13.
If control area is 2 or 1 OFDM symbol, when can also have more OFDM symbols to be used to transmit uplink
Prolong sensitive data.
If not needing the reserved protection interval for downlinking to uplink in downlink subframe, in addition to CRS and
When other OFDM symbols except the OFDM symbol that control channel etc. needs full bandwidth to occupy can flexibly carry out uplink and downlink
Prolong the transmission of sensitive data.
As shown in figure 16, in the down control channel in low time delay region transmission schematic diagram.Wherein, in OFDM symbol 3,7
With 11 on transmit low time delay control information.
(2), it is directed to sub-frame of uplink, the fractional bandwidth in each sub-frame of uplink can be determined as to be used for transmission delay sensitive
The low time delay region of data；Wherein, the OFDM symbol in the low time delay region in each sub-frame of uplink where SRS is used for transmission
Row time-delayed sensitive data, it is quick that other OFDM symbols in addition to the OFDM symbol where SRS are used for transmission upstream or downstream time delay
Feel data.
Specifically, being reserved under the premise of transmit upstream to the protection interval of downlink transfer in sub-frame of uplink, such as Figure 15 institute
Show, in this illustration, the protection interval for transmitting upstream to downlink transfer is an OFDM symbol, to be labeled as the column of G, and is marked
For the OFDM symbol for being classified as transmission upstream data of U, it is labeled as the OFDM symbol for being classified as transmission downlink data of D.In this feelings
Under condition, be up to 6 OFDM symbols can be used to transmit downlink time-delayed sensitive data, respectively OFDM symbol 0,5-6,11-13.
If the reserved protection interval for transmitting upstream to downlink transfer is not needed in sub-frame of uplink, in addition to SRS institute
OFDM symbol except other OFDM symbols can flexibly carry out the transmission of uplink and downlink time-delayed sensitive data.
Pass through the above-mentioned description to FDD LTE system and TD-LTE system, it can be seen that FDD LTE system can be regarded as
It is the special case of TD-LTE system, the uplink-downlink configuration in downlink subframe and sub-frame of uplink can be semi-static.And for FDD
LTE system can also consider to exist simultaneously uplink and downlink transmission in the same subframe.
In order to better understand above-described transmission mode, below in conjunction with specific example to the biography of time-delayed sensitive data
It is defeated to be illustrated.
As shown in figure 17, schematic diagram is transmitted in the time-delayed sensitive data of TD-LTE system.
Assuming that subframe n and subframe n+1 are downlink subframe.
According to the process of feedback of traditional LTE system, the downlink time-delayed sensitive data in subframe n is transmitted, and needs to wait until
Few 4ms later sub-frame of uplink just can be carried out the feedback for the downlink time-delayed sensitive data, after then waiting at least 4ms again
Downlink subframe carry out the re-transmission of the downlink time-delayed sensitive data.
Since the data volume of time-delayed sensitive data is smaller, along with the development of chip processing technologies, handling the time can be big
Big to shorten, the RTT time can also greatly shorten.It is therefore assumed that receiving the processing delay after downlink time-delayed sensitive data is 10
The duration of OFDM symbol, then the downlink time-delayed sensitive data transmitted in OFDM symbol 3 in subframe n, this subframe n most
The latter OFDM symbol can be completed to feed back, and just complete to retransmit in the OFDM symbol 11 of next subframe n+1.It can be seen that logical
Cross in a subframe while supporting downstream transmission, the shortening of combination processing time can greatly reduce the time delay of RTT.
Moreover, in the case where carrier wave is abundant, can independently of LTE carrier wave with other carrier waves come propagation delay time sensitivity industry
Business.The design of the carrier wave of independent propagation delay time sensitive traffic can not have to consider that the switching of uplink and downlink is more to the compatibility of LTE system
Free or pairs of carrier wave is without the concern for the switching of uplink and downlink in frequency band, and uplink and downlink is with different carrier waves come when transmitting
Prolong sensitive traffic.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (14)
1. a kind of data transmission method is applied in long term evolution LTE system characterized by comprising
The low time delay region of bandwidth is reserved in timesharing long term evolution TD-LTE subframe, the low time delay region is used for transmission
Time-delayed sensitive data；
Determine the resource that downlink LTE user data and scheduled uplink time delay sensitive data are transmitted in TD-LTE downlink subframe,
In, it is transmitted on described in the first area that an orthogonal frequency division multiplex OFDM symbol of downlink subframe corresponds to the low time delay region
When row time-delayed sensitive data:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits downlink
LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area；
The dispatch deal of data transmit-receive is carried out according to the resource of identified downlink subframe.
2. the method according to claim 1, wherein the method also includes:
Determine the resource that uplink LTE user data and scheduled downlink time-delayed sensitive data are transmitted in TD-LTE sub-frame of uplink,
In, sub-frame of uplink an OFDM symbol correspond to the low time delay region third region on transmit the downlink delay sensitive
When data:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol transmits uplink
LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
The dispatch deal of data transmit-receive is carried out according to the resource of identified sub-frame of uplink.
3. method according to claim 1 or 2, which is characterized in that
The resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, comprising:
It is intended to the downlink LTE user data of transmission, is mapped in corresponding OFDM symbol and sends, wherein described in transmission
Before OFDM symbol, it will be used for transmission the uplink time delay sensitive data in the OFDM symbol and be not used for the position of transmission data
Set punching.
4. according to the method described in claim 3, it is characterized by further comprising:
Network side sends the finger for being used to indicate data punch position in OFDM symbol in TD-LTE subframe in down control channel
Show information；
The resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, further includes:
When send the data mapping of data, according to the instruction information, its except the data punch position is selected
He maps position.
5. method according to claim 1 or 2, which is characterized in that
The money of downlink LTE user data and scheduled uplink time delay sensitive data is transmitted in the determining TD-LTE downlink subframe
Source, comprising:
Adjacent OFDM symbol in TD-LTE downlink subframe, before the OFDM symbol for transmitting the uplink time delay sensitive data
On, protection interval is reserved with for the uplink time delay sensitive data.
6. method according to claim 1 or 2, which is characterized in that there are institutes in the OFDM symbol in TD-LTE subframe
When stating bandwidth protection interval, the resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, comprising:
Base station is when dispatching LTE user data, being used for transmission in the resource of LTE user data in TD-LTE subframe, preferentially
Dispatch the resource far from the low time delay region.
7. according to the method described in claim 3, it is characterized in that,
The resource of the downlink subframe according to determined by carries out the dispatch deal of data transmit-receive, further includes:
When the corresponding part OFDM symbol in the region that LTE user in TD-LTE subframe is scheduled is perforated, LTE user is reduced
The modulation and coding strategy MCS order that data use.
8. a kind of data transmission device is applied in long term evolution LTE system characterized by comprising
Configuration module, for reserving the low time delay region of bandwidth in timesharing long term evolution TD-LTE subframe, when described low
Prolong region and is used for transmission time-delayed sensitive data；
First transmission module transmits downlink LTE user data and scheduled uplink time delay for determining in TD-LTE downlink subframe
The resource of sensitive data, wherein correspond to the low time delay region in an orthogonal frequency division multiplex OFDM symbol of downlink subframe
When the uplink time delay sensitive data is transmitted in first area:
Data are not transmitted in other regions in the OFDM symbol except first area,
Alternatively, the second area for being greater than predetermined threshold with the bandwidth protection interval of first area in the OFDM symbol transmits downlink
LTE user data, and protect bandwidth region not transmit data between first area and second area,
Alternatively, uplink time delay sensitive data is transmitted in other regions in the OFDM symbol except first area；
First scheduler module, for carrying out the dispatch deal of data transmit-receive according to the resource of identified downlink subframe.
9. device according to claim 8, which is characterized in that described device further include:
Second transmission module transmits uplink LTE user data and scheduled downlink time delay for determining in TD-LTE sub-frame of uplink
The resource of sensitive data, wherein uploaded in the third region that an OFDM symbol of sub-frame of uplink corresponds to the low time delay region
When the defeated downlink time-delayed sensitive data:
Data are not transmitted in other regions in the OFDM symbol except third region,
Alternatively, the fourth region for being greater than predetermined threshold with the bandwidth protection interval in third region in the OFDM symbol transmits uplink
LTE user data, and protect bandwidth region not transmit data between third region and the fourth region,
Alternatively, downlink time-delayed sensitive data is transmitted in other regions in the OFDM symbol except third region；
Second scheduler module, for carrying out the dispatch deal of data transmit-receive according to the resource of identified sub-frame of uplink.
10. device according to claim 8 or claim 9, which is characterized in that first scheduler module includes:
First scheduling unit, the downlink LTE user data for being intended to transmit, is mapped in corresponding OFDM symbol and sends,
Wherein, before sending the OFDM symbol, the uplink time delay sensitive data and not will be used for transmission in the OFDM symbol
It is used for transmission the position punching of data.
11. device according to claim 10, which is characterized in that described device further include:
Indicating module sends in down control channel for network side and is used to indicate in TD-LTE subframe data in OFDM symbol
The instruction information of punch position；
First scheduler module further include:
Second scheduling unit, for according to the instruction information, selecting the data when send the data mapping of data
Other positions except punch position are mapped.
12. device according to claim 8 or claim 9, which is characterized in that first transmission module includes:
First transmission unit is used in TD-LTE downlink subframe, in the OFDM symbol for transmitting the uplink time delay sensitive data
In adjacent OFDM symbol before, protection interval is reserved with for the uplink time delay sensitive data.
13. device according to claim 8 or claim 9, which is characterized in that
There are when the bandwidth protection interval, first scheduler module includes: in the OFDM symbol in TD-LTE subframe
Third scheduling unit is used for transmission LTE user in TD-LTE subframe for base station when dispatching LTE user data
In the resource of data, resource of the priority scheduling far from the low time delay region.
14. device according to claim 10, which is characterized in that first scheduler module further include:
4th scheduling unit, the corresponding part OFDM symbol quilt in region being scheduled for the LTE user in TD-LTE subframe
When punching, the modulation and coding strategy MCS order that LTE user data uses are reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790342.8A CN105763305B (en) | 2014-12-17 | 2014-12-17 | A kind of data transmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410790342.8A CN105763305B (en) | 2014-12-17 | 2014-12-17 | A kind of data transmission method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105763305A CN105763305A (en) | 2016-07-13 |
| CN105763305B true CN105763305B (en) | 2019-04-23 |
Family
ID=56339665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410790342.8A Active CN105763305B (en) | 2014-12-17 | 2014-12-17 | A kind of data transmission method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105763305B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111107644B (en) | 2016-11-04 | 2021-03-23 | 华为技术有限公司 | Time slot scheduling method and device |
| KR102409062B1 (en) * | 2017-03-23 | 2022-06-15 | 삼성전자 주식회사 | Apparatus and method for transmitting and receiving of data in a wireless communication system |
| ES2906164T3 (en) * | 2017-06-23 | 2022-04-13 | Fraunhofer Ges Forschung | Receiver, transmitter, system, and procedure that implements a retransmission procedure that responds to an indication that data encoded in allocated resources is not decodable |
| SG11202100489VA (en) * | 2018-07-17 | 2021-02-25 | Beijing Xiaomi Mobile Software Co Ltd | Data transmission method and apparatus, and storage medium |
| CN110536270B (en) * | 2018-09-28 | 2023-09-01 | 中兴通讯股份有限公司 | Data transmitting and receiving method and device, terminal, base station and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2216927A1 (en) * | 2008-01-30 | 2010-08-11 | ZTE Corporation | Transmission method for physical hybrid repeat indicator channel signal in downlink pilot time slot |
| CN102035594A (en) * | 2010-12-09 | 2011-04-27 | 中兴通讯股份有限公司 | Data transmitting method and device and radio frame |
| CN102781108A (en) * | 2011-05-10 | 2012-11-14 | 上海无线通信研究中心 | Delay-controllable combined wireless resource scheduling method |
| CN102986286A (en) * | 2011-06-21 | 2013-03-20 | 联发科技股份有限公司 | Systems and methods for different tdd configurations in carrier aggregation |
-
2014
- 2014-12-17 CN CN201410790342.8A patent/CN105763305B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2216927A1 (en) * | 2008-01-30 | 2010-08-11 | ZTE Corporation | Transmission method for physical hybrid repeat indicator channel signal in downlink pilot time slot |
| CN102035594A (en) * | 2010-12-09 | 2011-04-27 | 中兴通讯股份有限公司 | Data transmitting method and device and radio frame |
| CN102781108A (en) * | 2011-05-10 | 2012-11-14 | 上海无线通信研究中心 | Delay-controllable combined wireless resource scheduling method |
| CN102986286A (en) * | 2011-06-21 | 2013-03-20 | 联发科技股份有限公司 | Systems and methods for different tdd configurations in carrier aggregation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105763305A (en) | 2016-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103458513B (en) | Wireless communications method and base station and terminal | |
| CN107615696B (en) | System and method for subframe structure for wideband LTE | |
| CN105763290B (en) | A kind of data transmission method and device | |
| CN110383918A (en) | Use the system and method for the scheduling and resource allocation of one or more parameter sets | |
| JP2018078635A (en) | Subframe operation and channel information transmission method and device for interference control in communication system | |
| CN109937602A (en) | System and method for uplink communication | |
| CN105763305B (en) | A kind of data transmission method and device | |
| CN103780361B (en) | A kind of sending method and device of response message | |
| CN106465318A (en) | Apparatus and method for synchronous multiplexing and multiple access for different latency targets utilizing thin control | |
| CN101998432B (en) | Method, equipment and system for configuring frame structure of backhaul link | |
| CN109600850B (en) | Method and apparatus for enhancing coverage | |
| CN105099634A (en) | Dynamic resource allocating method and apparatus, base station, terminal | |
| CN104770040A (en) | Systems and methods for waveform selection and adaptation | |
| CN107615858A (en) | Equipment, network and method for virtual (base band) carrier aggregation broadband LTE | |
| CN106255213B (en) | It is a kind of configure time domain scheduling unit method and base station | |
| CN106413106B (en) | A kind of transmission method and device of upstream data | |
| WO2016127405A1 (en) | Data transmission method and device | |
| CN109196941A (en) | Communication means, terminal device and the network equipment based on wireless network | |
| CN105991274B (en) | Method, feedback information transmission method and the relevant device of data transmission | |
| JP2013507859A (en) | Kind of uplink control channel resource allocation method and equipment | |
| CN106688300A (en) | Method for radio communication, network device, user equipment, and system | |
| CN103037517A (en) | Wireless communication method, wireless communication system and base station | |
| CN113709875A (en) | Method and apparatus for transmitting data and control information | |
| CN107046719B (en) | Method, device and system for reducing transmission time delay of time division duplex | |
| CN109495966A (en) | It is used for transmission determination and configuration method, the terminal and base station of the resource of downlink data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |