The application be the applying date be on November 1st, 2013, application No. is the divisions of the patent of invention of 201380079802.X
Application.
This application claims " METHOD AND APPARATUS FORs submitting, entitled on September 26th, 2013
The Chinese PCT application sequence No.PCT/CN2013/ of EFFICIENT USAGE OF DAI BITS FOR eIMTA IN LTE "
Its entirety is expressly incorporated herein by 084339 equity by reference.
Specific embodiment
The detailed description illustrated with reference to the accompanying drawing, it is intended to as the description to various configurations, without being intended to indicate that this
Unique configuration that concept described in text can be practiced with it.For the purpose for being supplied to the thorough understanding to each conception of species,
Detailed description includes specific details.But to those skilled in the art it is evident that, can not have
These concepts are practiced in the case where these specific details.In some instances, in order to avoid obscuring these concepts, in form of a block diagram
Well known structure and component are shown.
Several aspects of the telecommunication system are presented now with reference to various device and method.These device and method are under
It is described in the detailed description in face, and passes through various frames, module, component, circuit, step, process, algorithm etc. in the accompanying drawings
It is shown Deng (it is referred to as " element ").Electronic hardware, computer software or any combination thereof can be used to realize these
Element.Hardware is implemented as these elements and is also implemented as software, depending on specifically application and whole system is applied
The design constraint added.
By way of example, any combination of any part or element of element or element, can be with including one
" processing system " Lai Shixian of a or multiple processors.The example of processor includes microprocessor, microcontroller, at digital signal
It manages device (DSP), field programmable gate array (FPGA), programmable logic device (PLD), state machine, gate control logic device, discrete
Hardware circuit runs through other appropriate hardware of various functions described in present disclosure with execution is configured as.In processing system
One or more processors can execute software.No matter software, firmware, middleware, microcode, hardware description language are referred to as
Or other terms, software should be construed as to imply that instruction, instruction set, code, code segment, program code, journey with extensively being anticipated
Sequence, subprogram, software module, application, software application, software package, routine, subroutine, object, executable file, execution line
Journey, process, function etc..
Therefore, in one or more exemplary embodiments, described function can hardware, software, firmware or
It is realized in any combination thereof.If realized in software, these functions can be stored or be encoded to computer-readable medium
On one or more instructions or code.Computer-readable medium includes computer storage medium.Storage medium can be calculating
Any usable medium that machine can access.By way of example and not by way of limitation, this computer-readable medium may include
Random access memory (RAM), read-only memory (ROM), electrically erasable ROM (EPROM), compact disk ROM (CD-
ROM) or other disc memories, magnetic disk storage or other magnetic storage apparatus or can be used in carry or store have refer to
The desired program code of order or data structure form simultaneously can be by any other medium of computer access.As made herein
, CD and disk include CD, laser-optical disk, CD, Digital Multi-Disc (DVD) and floppy disk, and wherein disk is usually magnetic
Ground replicate data, and CD is then with laser come optically replicate data.Combination above should also be as being included in computer-readable Jie
Within the protection scope of matter.
Fig. 1 is to show the diagram of LTE network framework 100.LTE network framework 100 is properly termed as the grouping system of evolution
(EPS)100.EPS 100 may include the UMTS Terrestrial Radio Access Network of one or more user equipmenies (UE) 102, evolution
(E-UTRAN) 104, the internet protocol of the block core (EPC) 110 of evolution, home subscriber server (HSS) 120 and operator
Discuss (IP) service 122.These entity/interfaces but for simplicity can be not shown with other access of internet interlock in EPS.
As shown, EPS provides packet-switched services, however, as the skilled person will readily understand, running through present disclosure
Each conception of species presented, which can extend to, provides the network of circuit switched service.
E-UTRAN includes evolved node B (eNB) 106 and other eNB 108.ENB 106 provides the use towards UE 102
Family and control plane protocol terminations.ENB 106 can be connected to other eNB 108 via backhaul (for example, X2 interface).eNB
106 are also referred to as base station, node B, access point, base transceiver station, wireless base station, transceiver, transceiver function list
Member, basic service set (BSS), extended service set (ESS) or some other appropriate terms.ENB 106 is that UE 102 is provided
The access point of EPC 110.The example of UE 102 includes cellular phone, smart phone, Session initiation Protocol (SIP) phone, above-knee
Type computer, personal digital assistant (PDA), satellite radio, global positioning system, multimedia equipment, video equipment, number
Audio player (such as MP3 player), camera, game console, tablet device or any other like function are set
It is standby.UE 102 can also be generally referred to by those skilled in the art as movement station, subscriber station, mobile unit, subscriber unit, radio-cell,
Remote unit, mobile device, wireless device, wireless telecom equipment, remote equipment, mobile subscriber station, access terminal, movement are eventually
End, wireless terminal, remote terminal, handheld device, user agent, mobile client, client or some other appropriate arts
Language.
ENB 106 is connected to EPC 110.EPC 110 may include mobility management entity (MME) 112, other MME
114, gateway 116, multicast broadcast multimedia service (MBMS) gateway 124,126 He of broadcast/multicast service center (BM-SC)
Packet data network (PDN) gateway 118.MME 112 is the control section for handling the signal transmission between UE 102 and EPC 110
Point.In general, MME 112 provides carrying and connection management.All User IP groupings are transmitted by gateway 116
, gateway 116 is connected to PDN Gateway 118 in itself.PDN Gateway 118 provides the distribution of UE IP address and other functions.
PDN Gateway 118 is connected to the IP service 122 of operator.The IP service 122 of operator may include internet, Intranet, IP more
Media subsystem (IMS) and PS stream service (PSS).BM-SC 126, which can be provided, to be supplied and is transmitted for MBMS user service
Function.BM-SC126 can be used as the entrance for content supplier's MBMS transmission, can be used in PLMN authorize and
MBMS carrying service is initiated, and can be used for dispatching and transmitting MBMS transmission.MBMS gateway 124 can be used for belonging to spy
ENB (for example, 106,108) the distribution MBMS business in region Multicast Broadcast Single Frequency Network (MBSFN) that fixed service is broadcasted, and
And session management (starting/stopping) being responsible for and for collecting the relevant charge information of eMBMS.
Fig. 2 is to show the diagram of the example of the access network 200 in LTE network framework.In this example, it will access
Network 200 is divided into several cellular zones (cell) 202.The eNB 208 of one or more lower-wattage grades can have with it is small
The equitant cellular zone 210 of one or more cells in area 202.It is small that the eNB 208 of lower-wattage grade can be millimicro
Area (for example, family eNB (HeNB)), picocell, Microcell or long distance wireless head end (RRH).Each macro eNB 204 is divided
The corresponding cell 202 of dispensing and be configured as all UE 206 in cell 202 provide arrive EPC 110 access point.It is connecing
Entering does not have centralized controller in this example of network 200, but can use centerized fusion in alternative configuration
Device.ENB 204 is responsible for all wireless relevant functions, including radio bearer control, admission control, mobility control, scheduling, peace
Quan Xing and connectivity to gateway 116.ENB can support one or more (for example, three) cells (also referred to as to fan
Area).Term " cell " also refers to the smallest coverage area of eNB and/or the eNB subsystem for servicing the particular coverage
System.In addition, term " eNB ", " base station " and " cell " may be used interchangeably herein.
The modulation used by access network 200 and Multiple Access scheme can depend on the specific telecommunication standard disposed and become
Change.In LTE application, SC-FDMA is used, using OFDM on DL and on UL to support frequency division duplex (FDD) and time-division
Both duplexing (TDD).It is presented herein each as those skilled in the art will readily appreciate that according to next detailed description
The conception of species is highly suitable for LTE application.However, these concepts can be easily extended to use other modulation and multiple access technology
Other telecommunication standards.By way of example, these concepts can extend to Evolution-Data Optimized (EV-DO) or super mobile wide
Band (UMB).EV-DO and UMB is to be announced, by third generation partner program 2 (3GPP2) as CDMA2000 family of standards one
Point air-interface standard and use CDMA with provide movement station broadband internet access.These concepts can also extend
It arrives: using the general land wireless access (UTRA) of other modifications of wideband CDMA (W-CDMA) and CDMA, such as TD-SCDMA;
Using the global mobile system (GSM) of TDMA;With UTRA (E-UTRA), the 802.11 (Wi- of IEEE of the evolution using OFDMA
Fi), IEEE 802.16 (WiMAX), IEEE 802.20 and flash OFDM (Flash-OFDM).In the document organized from 3GPP
In describe UTRA, E-UTRA, UMTS, LTE and GSM.CDMA2000 and UMB are being described in the document that 3GPP2 is organized.
The overall design constraints that wireless communication standard and multiple access technology used by reality will depend on specific application and apply to system.
ENB 204 can have the mutiple antennas for supporting MIMO technology.Using for MIMO technology enables eNB 204 sharp
Spatial reuse, beam forming and transmitting diversity are supported with spatial domain.Spatial reuse can be used in the same frequency simultaneously
Send different data flows.Data flow can be sent to single UE 206 to improve data rate or be sent to multiple UE 206
To improve entire system capacity.This (can apply the contracting of amplitude and phase by carrying out spatial pre-coding to each data flow
Put) and the stream of each spatial pre-coding then is sent by multiple transmission antennas on DL to realize.It reaches at UE (206)
Spatial pre-coding data flow have different spatial signatures, this enables each UE 206 to restore to go to the one of UE 206
A or multiple data flows.On UL, each UE 206 sends the data flow of spatial pre-coding, this enables eNB 204 to identify
The source of the data flow of each spatial pre-coding.
When channel conditions are good, usually using spatial reuse.When channel conditions are poor, beam forming can be used
Transmission energy is focused on one or more directions.This can be by carrying out space to the data sent by mutiple antennas
Precoding is realized.In order to obtain good covering in the edge of cell, can come in conjunction with transmitting diversity using single stream wave
Beam shaping transmission.
In next detailed description, the mimo system referring to the support OFDM on DL is described to each of access network
A aspect.OFDM is the spread spectrum of modulation data on several subcarriers in OFDM symbol.Subcarrier is with accurate frequency
It is spaced apart.The interval provides " orthogonality " for allowing a receiver to restore data from subcarrier.In the time domain, Ke Yixiang
Each OFDM symbol addition protection interval (such as cyclic prefix) is interfered between OFDM symbol with fighting.UL can be used to be expanded with DFT
The SC-FDMA of the form of ofdm signal is opened up to compensate high peak-to-average power ratio (PAPR).
Fig. 3 is to show the diagram 300 of the example of the DL frame structure in LTE.Frame (10ms) can be divided into 10 big
Small equal subframe.Each subframe may include two continuous time slots.Resource grid can be used to indicate two time slots, often
A time slot includes resource block.Resource grid can be divided into multiple resource units.In LTE, resource block includes in frequency domain
12 continuous subcarriers, also, for the normal cyclic prefix in each OFDM symbol, include 7 continuous OFDM in time domain
Symbol or 84 resource units.For the cyclic prefix of extension, resource block includes 6 continuous OFDM symbols in time domain and has
There are 72 resource units.Some (being such as marked as the resource unit of R 302, R 304) in resource unit include DL with reference to letter
Number (DL-RS).DL-RS includes the specific RS of cell (CRS) (also occasionally referred to as public RS) specific RS of 302 and UE (UE-RS)
304.UE-RS304 is only mapped at corresponding physical downlink shared channel (PDSCH) to be sent on resource block thereon.Each
The bit number that resource unit carries depends on modulation scheme.Therefore, the received resource block of UE is more and modulation scheme is higher, then
It is higher for the data rate of UE.
Fig. 4 is to show the diagram 400 of the example of the UL frame structure in LTE.It can will be drawn for the available resource block of UL
It is divided into data segment and control section.Control section can be formed in two edges of system bandwidth and can have configurable big
It is small.Resource block in control section can be distributed into the transmission that UE is used to control information.Data segment may include in control section not
Including all resource blocks.UL frame structure makes data segment include continuous subcarrier, this allows will be all continuous in data segment
Subcarrier distributes to single UE.
Resource block 410a, 410b in control section can be distributed to UE to send control information to eNB.It can also be by number
UE is distributed to according to resource block 420a, 420b in section to send data to eNB.The resource block that UE can be distributed in control section
On physics UL control channel (PUCCH) in send control information.The object on resource block that UE can be distributed in data segment
Reason UL, which shares, both only to be sent data or sends data and control information in channel (PUSCH).UL transmission can be across subframe
It two time slots and can all be jumped across frequency.
The set of resource block can be used to execute initial system access and realize Physical Random Access Channel (PRACH)
UL in 430 is synchronous.PRACH 430 carries random sequence and cannot carry any UL data/signaling.Before each random access
Lead the bandwidth occupied corresponding to 6 continuous resource blocks.Initial frequency is specified by network.That is, the biography of random access preamble
It is defeated to be limited to certain times and frequency resource.It is not directed to the frequency hopping of PRACH.Single subframe (1ms) or several continuous sons
PRACH trial is carried in the sequence of frame, and UE only can carry out single PRACH trial with every frame (10ms).
Fig. 5 is shown in LTE for the diagram of user plane and the example for the radio protocol architecture for controlling plane
500.It is shown as that there are three layers for the radio protocol architecture of UE and eNB: layer 1, layer 2 and layer 3.1 (L1 layers) of layer are lowermost layers
And realize various physical layer signal processing functions.L1 layers will be referred to as physical layer 506 herein.2 (L2 layers) 508 of layer are in object
Manage the link on layer 506 and being responsible between in physical layer 506, UE and eNB.
In user plane, L2 layer 508 includes medium access control (MAC) sublayer 510, wireless spread-spectrum technology (RLC)
Layer 512 and Packet Data Convergence Protocol (PDCP) sublayer 514, these sublayers terminate at the eNB of network side.Although not showing
Out, but UE can have several upper layers on L2 layer 508, and several upper layers include the PDN Gateway for terminating at network side
Network layer (for example, IP layers) at 118, and terminate at the application at the other end (such as distal end UE, server etc.) of connection
Layer.
PDCP sublayer 514 provides the multiplexing between different radio bearer and logic channel.PDCP sublayer 514 also provides needle
To the header-compressed of upper layer data packet to reduce wireless transmission expense, it is grouped by encryption data and safety is provided, and be
UE provides the switching between eNB and supports.Rlc sublayer 512 provides the Segmentation and Reassembly of upper layer data packet, lost data packet
It retransmits and the rearrangement of data grouping is to compensate the received out-of-order as caused by hybrid automatic repeat-request (HARQ).MAC
Layer 510 provides the multiplexing between logic channel and transmission channel.Media access control sublayer 510 is also responsible for distributing in a cell between UE
Various radio resources (for example, resource block).Media access control sublayer 510 is also responsible for HARQ operation.
In the control plane, in addition to the exception below, for UE and eNB radio protocol architecture for physical layer
506 and L2 layer 508 be it is essentially identical, it is described with the exception is that: there is no header compression function for controlling plane.Control
Plane further includes wireless heterogeneous networks (RRC) sublayer 516 in layer 3 (L3 layers).RRC sublayer 516 is responsible for obtaining radio resource (example
Such as, radio bearer) and be responsible for configuring low layer using the RRC signaling between eNB and UE.
Fig. 6 is the block diagram of the eNB 610 communicated within the access network with UE 650.In DL, to controller/processor
675 provide the upper-layer packet from core net.Controller/processor 675 realizes L2 layers of functionality.In DL, controller/place
Multiplexing between the reason offer of device 675 header-compressed, encryption, packet segmentation and rearrangement, logic channel and transmission channel, and
The radio resource allocation to UE 650 based on various priority metrics.Controller/processor 675 is also responsible for HARQ operation, right
The repeating transmission of lost packets and to UE 650 signal send.
Send the various signal processing functions that the realization of (TX) processor 616 is directed to L1 layers (i.e. physical layer).Signal processing function
It can include: coding and interweave to promote the forward error correction (FEC) at UE 650, and based on various modulation schemes (such as binary system
Phase-shift keying (PSK) (BPSK), quadrature phase shift keying (QPSK), M phase-shift keying (PSK) (M-PSK), M quadrature amplitude modulation (M-QAM)) to letter
Number constellation is mapped.Then by encoded and modulated Symbol division at parallel stream.Each stream is then mapped to OFDM
Subcarrier is multiplexed with reference signal (such as pilot tone) in time domain and/or frequency domain and is then used in reversed quickly Fu
Leaf transformation (IFFT) is combined to generate the physical channel for carrying time-domain OFDM symbol stream.Progress space is flowed to OFDM to prelist
Code is to generate multiple spatial flows.It can be used and carry out the channel estimation of channel estimator 674 to determine coding and modulation scheme, with
And spatial manipulation is used for using it.Channel estimation can be pushed away from reference signal and/or the channel conditions sent by UE 650 feedback
Export.Each spatial flow is then supplied to different antennas 620 via transmitter 618TX respectively.Each transmitter 618TX
RF carrier wave can be modulated with to corresponding spatial flow to be used for transmission.
At UE 650, each receiver 654RX receives signal by its corresponding antenna 652.Each receiver 654RX
Restore the information being modulated in RF carrier wave and provides the information to reception (RX) processor 656.RX processor 656 realizes L1
The various signal processing functions of layer.RX processor 656 can execute the spatial manipulation to information to restore to go to appointing for UE 650
What spatial flow.If multiple spatial flows will go to UE 650, RX processor 656 can be combined into single OFDM symbol
Stream.OFDM symbol stream is transformed into frequency domain from time domain using Fast Fourier Transform (FFT) (FFT) by subsequent RX processor 656.Frequency domain letter
It number include the OFDM symbol stream for the difference of each subcarrier of ofdm signal.Most may be used by determining by what eNB 610 was sent
The signal constellation point of energy, to restore and demodulate the symbol and reference signal on each subcarrier.These soft decisions can based on by
The channel estimation calculated of channel estimator 658.Then soft decision is decoded and is deinterleaved to restore initially by eNB 610
The data and control signal sent on the physical channel.Data and control signal are then supplied to controller/processor 659.
Controller/processor 659 realizes L2 layers.Controller/processor can be stored with depositing for program code and data
Reservoir 660 is associated.Memory 660 is properly termed as computer-readable medium.In UL, controller/processor 659 provides transmission
Demultiplexing, packet recombining, decryption, header decompression, control signal processing between channel and logic channel, to restore to come from core
The upper-layer packet of heart net.Upper-layer packet is provided then to data sink 662, data sink 662 indicates all protocol layers on L2 layers.
Various control signals can also be provided to data sink 662 for L3 processing.Controller/processor 659 is also responsible for using confirmation
(ACK) and/or negative confirmation (NACK) agreement carrys out error detection to support HARQ operation.
In UL, upper-layer packet is provided to controller/processor 659 using data source 667.Data source 667 indicates L2
All protocol layers on layer.Similar to the function of being described in conjunction with the DL transmission carried out by eNB 610, controller/processor
659 radio resource allocations carried out based on eNB 610, by provide header-compressed, encryption, packet segmentation and rearrangement, with
And being multiplexed to realize the L2 layer for user plane and control plane between logic channel and transmission channel.Controller/processing
Device 659 is also responsible for HARQ operation, the repeating transmission of lost packets and the signaling to eNB 610.
TX processor 668 can be used by channel estimator 658 from reference signal or be derived by the feedback that eNB 610 is sent
Channel estimation out selects coding appropriate and modulation scheme, and promotes spatial manipulation.It can be via transmitter respectively
654TX provides the spatial flow generated by TX processor 668 to different antennas 652.Each transmitter 654TX can be by RF carrier wave
Corresponding spatial flow is modulated with to be used for transmission.
By be similar to combine UE 650 at receiver function described in a manner of at eNB 610 to UL transmission at
Reason.Each receiver 618RX receives signal by its corresponding antenna 620.Each receiver 618RX recovery is modulated to RF carrier wave
On information and provide the information to RX processor 670.RX processor 670 may be implemented L1 layers.
Controller/processor 675 realizes L2 layers.Controller/processor 675 can be stored with program code and data
Memory 676 is associated.Memory 676 can be referred to as computer-readable medium.In UL, controller/processor 675 is provided
Demultiplexing, packet recombining, decryption, header decompression, control signal processing between transmission channel and logic channel is to restore to come
From the upper-layer packet of UE 650.The upper-layer packet from controller/processor 675 can be provided to core net.Controller/processing
Device 675 is also responsible for carrying out error detection using ACK and/or NACK agreement, to support HARQ operation.
Fig. 7 is to show the diagram 700 of the cellular zone of the range extension in heterogeneous network.RRH 710b etc. is lower
The eNB of power grade, by the enhancement type district interference coordination between RRH 710b and macro eNB 710a, and by by UE
720 interference executed are eliminated, and can have the cellular zone 703 that extend from cellular zone 702, range extends.Enhanced
In Inter-Cell Interference Coordination, RRH 710b receives the information of the disturbance regime about UE 720 from macro eNB 710a.The information permits
Perhaps RRH 710b services UE 720 in the cellular zone 703 that range extends, and as UE 720 enters the bee of range extension
Nest region 703 receives the switching of UE 720 from macro eNB 710a.
As discussed above, in LTE application, SC-FDMA is used using OFDM on DL and on UL, to support
Both FDD and TDD.For TDD, may exist seven kinds of possible UL and DL (UL/DL) sub-frame configuration.For example, being based on the subframe
Configuration, each subframe can be used for uplink or downlink or be used as special subframe.The example of sub-frame configuration is following
It is shown in table 1.
The configuration of 1 uplink-downlink of table
Fig. 8 is the wireless frame structure 800 for TDD physical layer.There may be two kinds of switching cycles, 5ms and 10ms.For
The switching cycle of 5ms, there are two special subframes in a radio frames (wherein, a radio frames are 10ms).For 10ms
Switching cycle, in a radio frame exist a special subframe.As shown in figure 8, a radio frames can be 10 milliseconds, and
It and may include two " fields " in the period with 5 milliseconds.Each field includes five subframes.In the example shown in Fig. 8,
Field #1 includes subframe #0-4 (for example, SF#0-4), and field #2 includes subframe #5-9 (for example, SF#5-9).In each field
In, each subframe in four subframes in five subframes may include two time slots, and in five subframes
One subframe can be special subframe, which includes three fields: when down link pilot timeslot (DwPTS), protection
Section (GP) and uplink pilot time slot (UpPTS).In the example shown in Fig. 8, for field #1, in SF#0,2,3 and 4
It include each two time slots, and SF#1 is the special subframe for including DwPTS, GP and UpPTS.For field #2, the and of SF#5,7,8
Each of 9 include two time slots, and SF#6 is the special subframe for including DwPTS, GP and UpPTS.When being switched to UL from DL
Using special subframe, and special subframe is not used when being switched to DL from UL.
Enhanced interference management and business reorganization (eIMTA) (see for example, 3GPP version 12), which provide, a kind of to be allowed to be based on
Business needs dynamically to adjust the mechanism of TDD DL/UL sub-frame configuration.That is, eIMTA can permit depending on UL business
And/or the amount of DL business, from a kind of DL/UL sub-frame configuration switching at runtime to another DL/UL sub-frame configuration.If there is weight
Current subframe configuration can be then switched to using the eNB of eIMTA and be used for DL with more than current subframe configuration by DL business
Subframe another sub-frame configuration.For example, if anticipate data burst on DL, and current subframe configuration is there are four tools
The configuration #1 (4DL:4UL) of DL subframe and four UL subframes, then sub-frame configuration can be switched to from sub-frame configuration #1 and have by eNB
The sub-frame configuration #5 of eight DL subframes and a UL subframe (8DL:1UL).On the other hand, if there is the UL business of weight, then
Current subframe can be configured to be switched to using the eNB of eIMTA and there is the subframe for being more used for UL than current subframe configuration
Another sub-frame configuration.For example, if anticipate big data burst on UL, and current subframe configuration is that have eight DL
The configuration #5 (8DL:1UL) of frame and a UL subframe, then sub-frame configuration can be switched to there are two tools by eNB from sub-frame configuration #5
The sub-frame configuration #0 of DL subframe and six UL subframes (2DL:6UL).ENB can be executed in such as 640ms to TDD UL/DL
The adjustment (for example, switching sub-frame configuration) of the configuration of frame.In one aspect, eNB can be executed in 10 milliseconds as quickly as possible
Adjustment to TDD UL/DL sub-frame configuration.
When two or more cells have different DL and UL subframe, the use of eIMTA may make DL and UL
At interference.Specifically, depending on being directed to different community since the business needs for each cell may be different
Business need, can for different cells use different sub-frame configurations.For example, if cell A is switched to sub-frame configuration #
1 and cell B is switched to sub-frame configuration #5, then configure #1 using subframe 3,7 and 8 for UL and configure #5 using subframe 3,7 and 8 use
In DL, this may cause UE (for example, UE 102) and is interfered.In addition, the use to eIMTA may cause in DL and UL
Certain complexity in HARQ timing management.Specifically, every kind of DL/UL sub-frame configuration in current DL/UL sub-frame configuration can
To have (in terms of HARQ operation efficiency) for the optimization of DL/UL sub-frame configuration, the DL/UL HARQ timing of its own.Example
It such as, can be in different TDD from the UL/DL HARQ timing that PDSCH DL is transferred to corresponding HARQ ACK/NAK UL transmission
Change between DL/UL sub-frame configuration.The switching at runtime between TDD DL/UL sub-frame configuration (for example, between the sub-frame configuration of table 1)
In the case where, if maintaining DL/UL HARQ timing according to the first sub-frame configuration, then before being switched to the second sub-frame configuration
For DL or UL transmission in it is some for, it is understood that there may be the ACK/NAK transmission opportunity missed, this is because before handover
, the UL/DL HARQ timing of configuration for the first subframe may be and UL/ after switching, for the second sub-frame configuration
DL HARQ timing is different.
In order to simplify the operation of eIMTA, one or more DL/UL sub-frame configurations can be determined for several physical layer operations
Justice is reference configuration.DL can be defined based on one of sub-frame configuration with reference to sub-frame configuration, and based in sub-frame configuration
Another kind defines UL with reference to sub-frame configuration so that DL with reference to sub-frame configuration for DL HARQ operation and UL refers to sub-frame configuration
For UL HARQ operation.For example, referring to sub-frame configuration design scheme for DL, DL HARQ operation can be based on DL/UL subframe
#5 is configured, without considering the practical DL/UL sub-frame configuration used in frame (or field).That is, if enabling dynamic DL/UL
Sub-frame configuration, then DL HARQ timing can be based on eight DL subframes and a UL subframe (for example, the DL/UL subframe of 8:1
Configuration) sub-frame configuration #5.Sub-frame configuration design scheme is referred to about UL, UL HARQ operation can match based on DL/UL subframe
#0 is set, without considering the practical DL/UL sub-frame configuration used in frame (or field).That is, if enabling dynamic DL/UL
Frame configuration, then the UL HARQ timing can there are two DL subframes and six UL subframes (for example, DL/UL of 2:6 based on tool
Frame configuration) sub-frame configuration #0.
Fig. 9 is with reference to sub-frame configuration according to DL and UL to the DL HARQ operation of subframe 901 and showing for UL HARQ operation
Example property HARQ operation 900.In the example shown in Fig. 9, DL utilizes sub-frame configuration #5 to grasp for DL HARQ with reference to sub-frame configuration
Make, and UL utilizes sub-frame configuration #0 for UL HARQ operation with reference to sub-frame configuration.Therefore, subframe #0 and 5 be fixed as DL and
The DL subframe of both UL HARQ operations, subframe #1 are fixed as the special subframe for both DL and UL HARQ operations, and subframe #
2 are fixed as the UL subframe for both DL and UL HARQ operations.Each subframe in subframe #3,4,7,8 and 9 is DL/UL
Frame is DL HARQ operation or UL HARQ operation depending on operation, is used as UL subframe or DL subframe.Specifically, base
In sub-frame configuration #5, subframe #3,4,7,8 and 9 are used as the DL subframe of DL HARQ operation, and are based on sub-frame configuration #0, subframe #3,
4,7,8 and 9 UL subframe as UL HARQ operation.Subframe #6 is DL/ special subframe, is DL HARQ operation depending on operation
Or UL HARQ operation is used as DL subframe or special subframe.As shown in figure 9, during the first DL HARQ operation 911,
UE can receive DL data at subframe #9,0,1,3,4,5,6,7 and 8, and can send UL at subframe #2 (913) and ring
It answers.In addition, as shown in figure 9, during the first UL HARQ operation 951, UE can receive DL data at subframe #0, and
Associated UL information is sent at subframe #4 and 7.During the 2nd UL HARQ operation 953, UE can receive DL at subframe 1
Data, and associated UL information is sent at subframe #7 and 8.
In TDD, UE can receive down link control information (DCI) lattice at DL subframe during downlink communication
Specific 2 bit field in formula 0/4.TDD DL/UL subframe is depended on to the use of 2 bit fields in DCI format 0/4 to match
It sets.If TDD UL/DL sub-frame configuration is sub-frame configuration #0,2 bit fields are used as UL index, to determine physical down link
Control channel (PDCCH) UL permits the delay between the transmission of PUSCH data.Table 2 shows determination and adjusts to PUSCH transmission
The example of the UL index of degree.For example, according to table 2, if UE receives PDCCH UL allowance at SF0, if UL index is
" 10 ", UE can execute PUSCH transmission at SF4, and if UL index is " 01 ", PUSCH transmission is executed at SF7.Cause
This, it is four subframes for the case where UL index is " 10 " that PDCCH UL, which permits the delay between PUSCH transmission, and for UL
The case where index is " 01 " is seven subframes.In the case where UL index is " 11 ", more transmission times are executed at multiple subframes
It is spaced (more-TTI) scheduling.For example, if UL index is " 11 ", and UE receives UL allowance at SF0, then UE in SF4 and
The place both SF7 executes PUSCH transmission.In table 2, n is the subframe numbers for receiving UL and permitting subframe, and k is the value in look-up table,
Look-up table permits the specific value of subframe numbers distribution for each UL.
PDCCH subframe and PUSCH subframe of the table 2 based on UL index
If TDD UL/DL sub-frame configuration is one of sub-frame configuration #1-6, two bits in 2 bit fields are used
Make UL downlink distribution index (DAI) bit, to indicate DL of scheduling in DL relation integration with PDSCH transmission
The total quantity of frame is used to determine the N for HARQ-ACK binding by UEbundledParameter or for HARQ-ACK multiplexing
HARQ-ACK codebook size.For example, as shown in FIG. 9, the UL at subframe #2, nine DL subframes in DL relation integration
(such as subframe #9,0,1,3,4,5,6,7 and 8) can be available.Then, the UL at subframe #2, in DL relation integration
In the sum of DL subframe can be nine or less.For example, if only subframe #9,0 and 1 are used for DL, DL incidence set
The total quantity of DL subframe in conjunction is three.
As discussed above, the reference sub-frame configuration for UL HARQ timing can be and be used for DL HARQ timing
It is different with reference to sub-frame configuration.If sub-frame configuration #0, which is used as UL HARQ, refers to sub-frame configuration, it is being directed to sub-frame configuration #0
DCI format 0/4 in 2 bit fields can be used for UL index.In such aspect, due to 2 in DCI format 0/4
Bit field cannot act as both UL index and UL DAI, therefore UL index and UL DAI ratio may occur in DCI format 0/4
Collision between spy.For example, if 2 bit fields in DCI format 0/4 are used as determining PDCCH UL allowance and PUSCH
The UL index of delay between transmission, then there is no be used to indicate in DL relation integration to have PDSCH in DCI format 0/4
The UL DAI of the total quantity of transmission, scheduling DL subframe.In the case where not having UL DAI, UE may not be able to be determined in DL
The total quantity of the DL subframe of scheduling in relation integration, and therefore may not determine the N for HARQ-ACK bindingbundled
Parameter or the HARQ-ACK codebook size being multiplexed for HARQ-ACK.Therefore, the missing of UL DAI may cause UL HARQ-ACK
Transmit ambiguity.On the other hand, for example, being directed to sub-frame configuration #5 if subframe #5 is used as DL HARQ and refers to sub-frame configuration
DCI format 0/4 in 2 bit fields can be used for UL DAI bit.If 2 bit fields are used as the UL DAI field,
Rather than being used as UL index, then UE may not be able to be determined for determining that PDCCH UL permits prolonging between the transmission of PUSCH data
The slow UL index.
In the case where carrying in last subframe of the DL subframe of DCI format 0/4 not in DL relation integration, may go out
Another existing problem.Last subframe in DL relation integration is with minimum value kmSubframe, wherein kmIt is PDCCH UL quasi-
Perhaps the minimum delay between PUSCH transmission.If PDCCH UL granted transmission is to refer to sub-frame configuration based on UL HARQ,
The DL subframe for then carrying DCI format 0/4 may not be in the last subframe in DL relation integration.
Figure 10 is the DL HARQ operation and UL HARQ operation to subframe 1001 that sub-frame configuration is referred to according to DL and UL
Exemplary HARQ operation 1000.In the example shown in Fig. 10, sub-frame configuration #2 be used as DL with reference to sub-frame configuration sub-frame configuration #
6 are used as UL referring to sub-frame configuration.Therefore, subframe #0 is fixed as the DL subframe for both DL and UL HARQ operations, subframe #2 and
7 are fixed as the UL subframe for both DL and UL HARQ operations, and subframe #1 and 6 is fixed as DL and UL HARQ operation two
The special subframe of person.Each of subframe #3,4,8 and 9 are flexible DL/UL subframes, are DL HARQ behaviour depending on operation
Make still UL HARQ operation, is used as DL subframe or DL subframe.
In Figure 10, about DL HARQ timing, the first DL HARQ operation 1011 is shown, the UL at subframe #7,
DL relation integration includes subframe #9,0,1 and 3, and the 2nd DL HARQ operation 1013 is shown, at subframe #2 (1015)
UL, DL relation integration include subframe #4,5,6 and 8.About UL HARQ timing, the first UL HARQ operation 1051 is shown, for
UL at subframe #7, UE receive UL at subframe #0 and permit (for example, DCI format 0/4), and the 2nd UL HARQ operation 1053
It shows, for the UL at subframe #2 (1057), UE receives another UL at subframe #5 (1055) to be permitted.For for son
The DL relation integration of frame #7, DL association in last subframe be subframe #3.Therefore, PDCCH UL permit with PUSCH transmission it
Between minimum delay between subframe #3 and subframe #7.However, although for the UL at subframe #7, UE is received at subframe #0
UL permits, but subframe #0 is not directed to the last subframe in the relation integration of subframe #7.In this case, it is possible in the presence of about
The problem of UL DAI bit, the UL DAI bit indication have PDSCH transmission, scheduling DL subframe in DL relation integration
Total quantity.Specifically, in this case, eNB (for example, eNB 106) does not have at subframe #1 and 3 to be permitted for UL
The scheduling of transmission, and therefore correct value permit for the UL sent at subframe #0, UL DAI bit cannot be provided.
As a result, eNB has to permit subframe (for example, subframe #0) in UL when sending the UL allowance for the UL at subframe #7
Use the pre-scheduling to DL subframe (for example, subframe #1 and 3) later, this generates for DL scheduler additional limitation and
Complexity may be created.
Potential collision between UL index and UL DAI bit can use first method to solve, and the first method makes
With the specific UL index configurations of cell (rather than using the specific UL index configurations of UE).Match using the specific UL index of cell
In the first method set, UL index does not include and therefore 2 bits in DCI format 0/4 in the DCI format 0/4 that UL permits
Field can be used for UL DAI bit.It, can be with as including substitution in 2 bit fields in DCI format 0/4 by UL index
It is configured based on dynamic TDD UL/DL to configure UL index.2 bit fields in DCI format 0/4 permitted due to UL are not used in UL
Index, therefore 2 bit fields in DCI format 0/4 can be used for UL DAI.In addition, in first method, only the two of UL index
All UL of kind value (for example, " 0 " and " 1 ") application permit.
In the example shown in table 3A and 3B (wherein, sub-frame configuration #0 is used as UL HARQ with reference to sub-frame configuration), for
EIMTA only defines two kinds of values " 0 " and " 1 " of UL index, and applies it to UL allowance.Such as the institute in table 3A and 3B below
Show, UL, which permits subframe and PUSCH transmission subframe, has the fixed relationship based on UL index.The use of every kind of UL index configurations be by
Dynamic subframe configuration determines.In the example shown in table 3A and 3B, if dynamic subframe configuration instruction SF4 or SF9 are to be directed to
The first UL index configurations (for example, table 3A) then can be used in the UL subframe of subsequent radio frames.On the other hand, if dynamic
Frame configuration instruction SF4 and SF9 are not the UL subframes for subsequent radio frames, then can be used the 2nd UL index configurations (for example,
Table 3B).For example, instruction SF4 is UL subframe, then if the dynamic subframe configuration for subsequent radio frames is sub-frame configuration #0
The first UL index configurations (for example, table 3A) are used for sub-frame configuration #0.On the other hand, if for the dynamic of subsequent radio frames
State sub-frame configuration is sub-frame configuration #1, and instruction SF4 and SF9 is not UL subframe, then can use for sub-frame configuration #1
Two UL index configurations (for example, table 3B).Furthermore it is possible to which the field of 1 bit is added in dynamic subframe configuration, it is directed to instruction
Present frame uses which of first (for example, table 3A) and second (for example, table 3B) UL index configurations.Additionally or substituting
Outer as an example in scheme, if reference frame configuration is sub-frame configuration #0, dynamic subframe configuration is also sub-frame configuration #0,
Still 2 bit fields can be construed to UL index.However, if UE determine with reference to sub-frame configuration be sub-frame configuration #0 and
Dynamic subframe configuration is also sub-frame configuration #0, then 2 bit fields can be construed to UL DAI.
Additionally or in alternative solution, second method is can be used in the potential collision between UL index and UL DAI bit
To solve.It according to second method, can be scheduled for fixed subframe, UL index each of is permitted for UL, wherein be directed to
Corresponding UL permits the uplink subframe of subframe, and UL index is fixed.Due to being directed to for each of UL allowance fixed subframe,
UL index is scheduled, therefore UL index does not include in the DCI format 0/4 that UL permits.Therefore, 2 ratios in DCI format 0/4
Special field can be used for UL DAI bit.
It is predetermined for fixed subframe, UL index each of is permitted for UL in the example shown in table 4 below
, wherein subframe #0,1,5 and 6 are the fixations for both DL and UL HARQ operation (thus for UE be common)
DL subframe.One (for example, " 01 ", " 10 " and " 11 ") in UL index value can be distributed and permit subframe for UL.Correspond to
The subframe of the UL index distributed can be UL subframe.For example, in table 4, the UL index of " 01 " is allocated for UL and permits son
Frame 1, and therefore the PUSCH transmission in SF8 is scheduled for UL allowance subframe 1.Fixed UL indexing model (pattern) can be with
Be it is scheduled, with support for multiple subframes more-TTI scheduling.For example, in table 4, the UL index of the fixation of " 11 " is assigned
Subframe 0 is permitted for UL, and therefore the PUSCH transmission in SF4 and SF7 the two can be scheduled for UL allowance subframe 0.As
Another example permits subframe 0 for the UL in table 4, since each of SF4 and SF7 are flexible subframes, depends on son
Frame configuration, DL subframe either UL subframe, if SF4 is reconfigured into as DL subframe (for example, being matched according to dynamic subframe
Set), then only SF7 can be scheduled for PUSCH transmission.In addition, if it is DL subframe or UL that UE, which does not have about subframe,
The information (for example, due to error detection of counterweight configuration signal) of frame, then UE executes PUSCH biography not in any flexible subframe
It is defeated, it may interfere with to avoid to any of other UE.
The fixed UL index configurations of table 4.
As discussed above, if UL granted transmission is to carry DCI lattice with reference to sub-frame configuration based on UL HARQ
The DL subframe of formula 0/4 may not be in the last subframe in DL relation integration.If the UL DAI ratio in DCI format 0/4
Spy sends during not being any subframe in DL relation integration, then there may be transmit with UL.This problem can
It is solved with permitting the third method of timing by using flexible UL.For fixed UL subframe (for example, DL and ULHARQ ginseng
Examine the common UL subframe between sub-frame configuration), DL can also be based on based on the UL HARQ UL allowance sent with reference to sub-frame configuration
HARQ is sent referring to sub-frame configuration.Specifically, since fixed UL subframe is in the UL for referring to sub-frame configuration based on UL HARQ
It is used as UL subframe in HARQ operation and DL HARQ operation the two based on DL HARQ referring to sub-frame configuration, therefore can be based on
UL HARQ, with reference to any one of sub-frame configuration, it is quasi- to send UL with reference to sub-frame configuration or DL HARQ at fixed UL subframe
Perhaps.Therefore, although UL HARQ can be used for flexible UL subframe with reference to sub-frame configuration, UL HARQ may not with reference to sub-frame configuration
UL subframe for fixing.According to the third method, if had most in DL relation integration according to DL HARQ sub-frame configuration
Small value km(wherein, kmThat PDCCH UL permits minimum delay between PUSCH transmission) subframe be DL subframe, then UE can be with
Uplink at corresponding UL subframe, with minimum value kmSubframe at receive UL permit.It should be noted that having most
Small value kmSubframe be last subframe in DL relation integration, as discussed above.
Figure 11 is the embodiment according to present disclosure, to the DL HARQ operation of subframe 1101 and showing for UL HARQ operation
Example property HARQ operation 1100.In the example shown in Figure 11, sub-frame configuration #2 (1115) is used as DL subframe and configures and sub-frame configuration #
6, which are used as UL subframe, configures.In Figure 11, the first DL HARQ operation 1111 is shown, the UL at subframe #7, DL incidence set
Closing includes subframe #9,0,1 and 3, and the 2nd DL HARQ operation 1113 is shown, the UL at subframe #2, DL relation integration
Including subframe #4,5,6 and 8.In addition, the first UL HARQ operation 1151 is shown in Figure 11, the UL at subframe #7 is passed
Defeated, UE receives the first UL allowance at subframe #0, and the 2nd UL HARQ operation 1153 is shown, the UL at subframe #7
Transmission, UE receive the 2nd UL allowance at subframe #3.According to third method, UE receives the 2nd UL allowance at subframe #3, this is
Because subframe #3 is last subframe for the UL transmission at subframe #7, in DL relation integration.It should be noted that subframe #3
After subframe #0 (it is fixed DL subframe).
It can implicitly or explicitly determine that for one or more fixed UL subframes, flexible UL permits timing.
For implicit method, UE monitoring is in the UL subframe for referring to sub-frame configuration based on DL with reference to the DL subframe of sub-frame configuration and based on UL
UL in the two permits.Permit if UE detects two UL for uplink transmission at fixed UL subframe, and
There are inconsistent, the then last decoded UL allowances of UE consideration between two UL permit, and can not consider other UL
Permit.In the example shown in Figure 11, the first UL allowance is to receive at subframe #0, and the 2nd UL allowance is in subframe #3
What place received, wherein the first UL permits and the 2nd UL permits for the uplink at subframe #7 (it is fixed UL subframe)
Road transmission.In this example, if UE considers in son there are inconsistent between the first UL permits and the 2nd UL permits
The 2nd UL of UL receiving at frame #3, at subframe #7 permits (it is that last decoded UL permits), and does not consider
The first UL received at subframe #0 permits.Alternatively, explicit method may include additional in dynamic subframe configuration
1 bit indicator so that 1 bit indicator instruction is contemplated which UL permits.
As discussed above, when wherein receive UL allowance subframe be located at DL relation integration last subframe it
Problem is likely to occur when preceding.Therefore, fourth method can be used to solve such problems.UL DAI ratio in DCI format 0/4
Special valueRepresent the total quantity of in DL relation integration with PDSCH transmission, scheduling DL subframe.If eNB does not make
With pre-scheduling, then the reflection of UL DAI value up to (up to) the DL subframe for the subframe for wherein receiving UL allowance quantity, and because
This may be the number smaller than the total quantity of the DL subframe of the scheduling in relation integration.It is not reflected in DL incidence set in UL DAI value
In the case where the correct total quantity of the DL subframe of scheduling in conjunction, UE can be added to by that will deviate KIt is new to export
UL DAI value, to indicate the correct total quantity of DL subframe, wherein K indicate received wherein UL allowance subframe it
Afterwards, the quantity of available DL subframe.That is,UE can be usedTo determine on PUSCH
Transmission HARQ-ACK parameter, in order to provide the correct total quantity of the DL subframe of scheduling.If UE connects not wherein
It receives in the DL subframe after the subframe of UL allowance and detects any DL distribution, then UE can be generated for these DL subframes
NACK。
Furthermore, it is possible to which DL relation integration to be divided into the first set of DL subframe and the second set of DL subframe.DL subframe
First set include it is in DL relation integration, up to wherein receive UL allowance subframe DL subframe.Therefore,Table
Show the quantity of the DL subframe in first set.The second set of DL subframe include it is in DL relation integration, receive wherein
Available DL subframe after the subframe that UL permits.Therefore, K indicates the quantity of the DL subframe in second set.To for first
The determination of the HARQ-ACK payload size of set is based on the UL DAI value received in UL permitsAnd to for the
Quantity of the determination of the HARQ-ACK payload size of two set based on the DL subframe in second set (it is equal to offset K).
It then, can be big by calculating the payload of first set for the feedback HARQ-ACK payload size of DL relation integration
The small summation with the payload size of second set determines.
For example, about DL HARQ timing, the first DL HARQ operation 1011 is shown for subframe #7 referring again to Figure 10
The UL at place, DL relation integration include #9,0,1 and 3.About UL HARQ timing, the first UL HARQ operation 1051 is shown, needle
To the UL at subframe #7, UE receives UL allowance at subframe #0.For the subframe #9 and 0, UL of the first DL HARQ operation 1011
DAI bit valueIt is 2, this is because UL DAI valueIndicate DL relation integration (e.g., including subframe #9,0,1 and 3
Set) in, up to received wherein in the first UL HARQ operation 1051 UL allowance subframe #0 DL subframe number
Amount.In this example, it is 2 for the subframe #1 and 3 of the first DL HARQ operation 1011, K, is associated with this is because K is represented in DL
Son in set (for example, subframe #9,0,1 and 3), receiving in the first UL HARQ operation 1051 UL allowance wherein
The quantity of DL subframe after frame #0.In the example of Figure 10, new UL DAI valueIt isCause
This, even if permitting DL after subframe (for example, subframe #0) for UL when sending the UL allowance for the UL at subframe #7
Frame (for example, subframe #1 and 3) eNB does not use pre-scheduling, thenFor indicate DL subframe (for example, subframe #9,0,1,
With correct total quantity 3).
In addition, (it includes DL in DL relation integration, up to subframe #0 to the first set of DL subframe in Figure 10
Frame) it include subframe #9 and 0.(it includes available son in DL relation integration, after subframe #0 to the second set of DL subframe
Frame) it include subframe #1 and 3.HARQ-ACK payload size for first set be based on UL DAI value (for example,) come what is determined.HARQ-ACK payload size for second set is based on the DL subframe in second set
Quantity (for example, K=2) is come what is determined.It is effective for the feedback HARQ-ACK of DL relation integration (for example, subframe #9,0,1 and 3)
Magnitude of load can be by the payload size and second set of calculating first set (for example, subframe #9 and 0) (for example, #1
It is determined with the summation of the size of payload 3).
According to the 5th method, UL HARQ-ACK transmission can be not dependent on the UL DAI for ULHARQ-ACK feedback.Example
Such as, UE can abandon the UL DAI in UL allowance, and HARQ-ACK is executed on PUSCH in the case where not having UL DAI
Transmission.It therefore, can be to avoid the problem related with UL DAI bit if the 5th method used.Specifically, for
HARQ-ACK binding, UE is according to the quantity of the DL subframe of distribution being detected by UE, in DL relation integration (for example, DL is closed
Join the size of set) determine parameter Nbundled.HARQ-ACK is multiplexed, UE passes through the size of DL relation integration or passes through
The size (in addition to flexible UL subframe) of dynamic set determines HARQ-ACK code book.Flexible UL subframe can be according to dynamic
Sub-frame configuration determines.For example, referring to Figure 10 is returned, dynamic set can exclude subframe #3,4,8 and 9, because according to UL/DL
Frame configures, and subframe #3,4,8 and 9 in Figure 10 are flexible UL subframes.It should be noted that being matched using the specific UL index of cell
The first method set, permit using the second method of scheduled UL index, using flexible UL the third method of timing, pass through by
Offset with the Calais UL DAI Zhi Xiang determine new UL DAI value fourth method and can be individually via the 5th method of UE
Using or with any combination thereof come using.
Figure 12 is the flow chart 1200 of the first method of the wireless communication in the network based on TDD LTE.This method can
To be executed by UE.In step 1202, UE receives the instruction to dynamic UL/DL sub-frame configuration during the first subframe.In step
1204, UE are based on uplink reference sub-frame configuration, and are matched based on dynamic UL/DL sub-frame configuration or downlink reference subframe
At least one of set, determine uplink HARQ timing.In step 1206, UE by based on dynamic UL/DL sub-frame configuration come
Determine that uplink indexes, the uplink subframe based on the selection of identified uplink HARQ timing for communication,
In, the uplink subframe is to be indexed based on the uplink come selection.When the dynamic UL/DL sub-frame configuration indicates
When one or more subframe numbers are associated with for the subframe of uplink, the uplink index can be the first value, and
When the dynamic UL/DL sub-frame configuration indicates that one or more of subframe numbers are not related to the subframe for uplink
When connection, the uplink index can be second value.As discussed above, UE is based on the UL with reference to sub-frame configuration and moves
State UL/DL sub-frame configuration determines uplink HARQ timing.For example, it is as discussed above, according to shown in table 3A and 3B
Example (wherein, sub-frame configuration #0 is used as UL HARQ with reference to sub-frame configuration) out, if dynamic subframe configuration instruction SF4 or SF9
It is the UL subframe for subsequent radio frames, then uses the first UL index configurations (for example, table 3A), and if dynamic subframe configuration refers to
Show that SF4 and SF9 are not intended to the UL subframe of subsequent radio frames, then uses the 2nd UL index configurations (for example, table 3B).Table 3A and
3B shows the UL HARQ timing according to UL index.Specifically, the example according to shown in table 3A and 3B, PUSCH subframe are
Based on UL index come selection.
Optional aspect at step 1208, UE can be UL/DL in identified uplink HARQ reference configuration
When frame configures and dynamic UL/DL sub-frame configuration is the UL/DL sub-frame configuration, the field in the DCI is construed to described
Uplink index.Optional aspect at step 1210, UE can be in identified uplink HARQ reference configurations or dynamic
When at least one of state UL/DL sub-frame configuration is not the UL/DL sub-frame configuration, the field in the DCI is explained
For uplink DAI.As discussed above, for example, if being sub-frame configuration #0 and dynamic subframe configuration with reference to sub-frame configuration
It is also sub-frame configuration #0, then still 2 bit fields can be construed to UL index.In addition, as discussed above, if UE does not have
Determining is sub-frame configuration #0 with reference to sub-frame configuration and dynamic subframe configuration is also sub-frame configuration #0, then can be by 2 bit field solutions
It is interpreted as UL DAI.
Figure 13 is the flow chart 1300 of the second method of the wireless communication in the network based on TDD LTE.This method can
To be executed by UE.In step 1302, UE receives the instruction to dynamic UL/DL sub-frame configuration during the first subframe.In step
1304, UE are based on uplink reference sub-frame configuration, and are matched based on dynamic UL/DL sub-frame configuration or downlink reference subframe
At least one of set, determine uplink HARQ timing.In step 1306, when UE is based on identified uplink HARQ
Sequence, uplink subframe of the selection for communication.In step 1308, UE is closed in the downlink of selected uplink subframe
Uplink is received in last downlink subframe in connection set to permit.The last downlink subframe can be base
It is determined in the downlink reference sub-frame configuration.The last downlink in the downlink association set
Subframe can be located at after the downlink subframe of the fixation for receiving the allowance of another uplink.As discussed above
, UE determines uplink HARQ timing with reference to sub-frame configuration with reference to sub-frame configuration and DL based on UL.If in DL incidence set
There is minimum value k in conjunctionmSubframe be that the DL subframe of sub-frame configuration is referred to according to DL HARQ, then UE can be in corresponding UL
Uplink at subframe, with minimum value kmSubframe at receive UL permit, wherein have minimum value kmSubframe be DL
Last subframe in relation integration.For example, as discussed above, example shown in 1, UE connect at subframe #3 referring to Fig.1
The 2nd UL allowance is received, this is because subframe #3 is setting for the last son in the DL relation integration of the UL transmission at subframe #7
Frame, and since subframe #3 is located at after subframe #0 (it is fixed DL subframe).
Optional aspect at step 1310, UE can be based at least one of the following, come from the downlink
The uplink of the last downlink subframe in link association set is permitted or the downlink from the fixation
Other uplinks of subframe select one in permitting: decoding the time and decode other uplinks that the uplink is permitted
The time of road allowance or the indicator in dynamic UL/DL sub-frame configuration.The last downlink of downlink association set
Subframe can be flexible downlink subframe.As discussed above, such as with reference to Figure 11, if received at subframe #0
The first UL permit and with the 2nd UL that is received at subframe #3 permit between there are inconsistent, then UE thinks at subframe #3
The 2nd UL received permits (it is that last decoded UL permits) for the UL at subframe #7, and does not consider at subframe #0
The first UL received permits.Alternatively, as discussed above, dynamic subframe configuration may include that 1 additional ratio refers in particular to
Show symbol, instruction is contemplated which UL permits.
Figure 14 is the flow chart 1400 of the third method of the wireless communication in the network based on TDD LTE.This method can
To be executed by UE.In step 1402, UE determines at least one in parameter or HARQ message code book for the binding of HARQ message
It is a.In step 1404, UE is based on the parameter or at least one of HARQ message code book disappears to send one or more HARQ
Breath.One or more of flexible uplink subframes can be according to dynamic uplink/downlink subframe configurations come
Determining.For example, it is as discussed above, HARQ-ACK is bundled, UE is according to institute being detected by UE, in DL relation integration
The quantity of the DL subframe of distribution, to determine parameter Nbundled.As discussed above, HARQ-ACK is multiplexed, UE passes through DL
The size of relation integration determines HARQ-ACK code book by the size (in addition to flexible UL subframe) of dynamic set.
Figure 15 is to show the concept of the data flow between disparate modules/device/component in exemplary means 1502
Property data flowchart 1500.The device can be UE.The device includes receiving module 1504, HARQ tfi module 1506, UL
Frame selecting module 1508, DCI field explanation module 1510, UL permit processing module 1512, determining module 1514 and sending module
1516.Receiving module 1504 receives the instruction to dynamic UL/DL sub-frame configuration during the first subframe.HARQ tfi module 1506
Based on uplink reference sub-frame configuration, and based in dynamic UL/DL sub-frame configuration or downlink reference sub-frame configuration
At least one, determines uplink HARQ timing.UL subframe selecting module 1508 by based on dynamic UL/DL sub-frame configuration come really
Determine uplink index, the uplink subframe based on the selection of identified uplink HARQ timing for communication.Work as institute
Determining uplink HARQ reference configuration is UL/DL sub-frame configuration and the dynamic UL/DL sub-frame configuration is the UL/DL
When sub-frame configuration, the field in the DCI is construed to the uplink and indexed by DCI field explanation module 1510, and works as institute
At least one of determining uplink HARQ reference configuration or the dynamic UL/DL sub-frame configuration are not UL/DL
When frame configures, the field in the DCI is construed to uplink DAI by DCI field explanation module 1510.
UL permits processing module 1512 and closes via receiving module 1504 in the downlink of selected uplink subframe
It receives uplink in last downlink subframe in connection set to permit, wherein the last downlink subframe is
It is determined based on the downlink reference sub-frame configuration.UL permits processing module 1512 based at least one in the following terms
, in the uplink allowance from the uplink subframe or other uplinks of the downlink subframe from the fixation
Link selects one in permitting: the time and the time for decoding the allowance of other uplinks that the uplink is permitted are decoded,
Or the indicator in the dynamic UL/DL sub-frame configuration.
Determining module 1514 determines at least one of the parameter bundled for HARQ message or HARQ message code book,
In, the parameter for HARQ message binding is associated with based on downlink detected by user equipment, subframe
The size of set determines, and the HARQ message code book is the size of the downlink association set based on subframe
Or other than one or more flexible uplink subframes, at least one of the size of dynamic set of subframe comes
Determining.Sending module 1516 is based on the parameter or at least one of HARQ message code book sends one or more HARQ
Message.
The apparatus may include the additional moulds of each step of the algorithm in the aforementioned flowchart for executing Figure 12-14
Block.In this way, each step in the aforementioned flowchart of Figure 12-14 can be executed by module, and the apparatus may include this
One or more of a little modules.The module can be configured specifically for executing stated process/algorithm one or more
Hardware component is realized, is stored in for being realized by processor by being configured as executing stated process/algorithm processor
Computer-readable medium in or its certain combination.
Figure 16 is to show a kind of diagram of the hard-wired example for device 1502 ' using processing system 1614
1600.Processing system 1614 can use bus architecture to realize, the bus architecture is indicated generally at by bus 1624.Bus
1624 may include any amount of interconnection buses and bridges, this depends on the concrete application of processing system 1614 and entirety is set
Meter constraint.Bus 1624 by include one or more processors and/or hardware module various circuit connections together, it is described each
The electric route processors 1604 of kind, module 1504,1506,1508,1510,1512,1514,1516 and computer-readable medium/deposit
Reservoir 1606 indicates.Bus 1624 can also link timing source, peripheral equipment, voltage regulator and management circuit etc.
Various other circuits, it is well known in the art that and therefore will not be discussed further.
Processing system 1614 may be coupled to transceiver 1610.Transceiver 1610 is coupled to one or more antennas 1620.
Transceiver 1610 provides a mean for the unit that transmission medium is communicated with various other devices.Transceiver 1610 is from one or more
Antenna 1620 receives signal, from the signal extraction information received, and to 1614 (the especially receiving module of processing system
1504) extracted information is provided.Believe in addition, receiver 1610 is received from processing system 1614 (especially transmission module 1516)
Breath, and it is based on the received information, generate the signal that be applied to one or more antennas 1620.Processing system 1614 is wrapped
Include the processor 1604 for being coupled to computer-readable medium/memory 1606.Processor 1604 is responsible for general processing, including to depositing
Store up the execution of the software on computer-readable medium/memory 1606.Software by processor 1604 when being executed, so that processing
System 1614 is executed above with respect to various functions described in any specific device.Computer-readable medium/memory 1606 is also
It can be used for storing the data manipulated when processor 1604 executes software.The processing system further include module 1504,1506,
1508, at least one of 1510,1512,1514 and 1516.Module can be the software module operated on processor 1604,
The software module that be resident/is stored in computer-readable medium/memory 1606, the one or more for being coupled to processor 1604
Hardware module or its certain combination.Processing system 1614 can be the component part of UE 650, and may include memory
At least one of 660 and/or TX processor 668, RX processor 656 and controller/processor 659.
In one configuration, device for wireless communications 1502/1502 ' include: for during the first subframe by with
Family equipment (UE) receives the unit of the instruction to dynamic uplink/downlink (UL/DL) sub-frame configuration;For being based on uplink
Link refers to sub-frame configuration, and is based at least one of dynamic UL/DL sub-frame configuration or downlink reference sub-frame configuration,
Determine the unit of uplink hybrid automatic repeat request (HARQ) timing;And for based on identified uplink HARQ
Timing, unit of the selection for the uplink subframe of communication.The unit for selection is additionally configured to based on described dynamic
State UL/DL sub-frame configuration, to determine that uplink indexes, wherein the uplink subframe is based on the uplink rope
Attract selection.When the dynamic UL/DL sub-frame configuration indicates one or more subframe numbers and the subframe phase for being used for uplink
When association, the uplink index can be the first value, and when dynamic UL/DL sub-frame configuration instruction is one or more
When a subframe numbers are not associated with the subframe for uplink, the uplink index can be second value.For
The received unit can be additionally configured to receive down link control information (DCI), and the device 1502/1502 ' is also
It may include for when identified uplink HARQ reference configuration is UL/DL sub-frame configuration and dynamic UL/DL
When frame configuration is the UL/DL sub-frame configuration, the field in the DCI is construed to the unit of uplink index, Yi Jiyong
It is not described in working as at least one of identified uplink HARQ reference configuration or the dynamic UL/DL sub-frame configuration
When UL/DL sub-frame configuration, the field in the DCI is construed to the unit of uplink DAI.
The device 1502/1502 ' can also include for the downlink incidence set in selected uplink subframe
The unit that uplink is permitted is received in last downlink subframe in conjunction, wherein the last downlink subframe
It is to be determined based on the downlink reference sub-frame configuration.The last downlink in the downlink association set
Link subframe can be located at after the downlink subframe of the fixation for receiving the allowance of another uplink.The device
1502/1502 ' can also include for being based at least one of the following, in the uplink from the uplink subframe
The unit of selection one in other uplinks allowance of the downlink subframe of self-retaining is permitted or come to link: on decoding is described
The time and decode in the time or the dynamic UL/DL sub-frame configuration that other uplinks are permitted that line link is permitted
Indicator.
In another arrangement, device for wireless communications 1502/1502 ' include: automatic for mixing for determining
The parameter of retransmission request (HARQ) message binding or the unit of at least one of HARQ message code book, wherein for described
The parameter of HARQ message binding be the size based on downlink association set detected by user equipment, subframe come
It is determining, and the HARQ message code book is the size of the downlink association set based on subframe or in addition to one
Or except multiple flexible uplink subframes, at least one of the size of dynamic set of subframe determines;And
For based on the parameter or at least one of HARQ message code book sends the units of one or more HARQ message.It is described
One or more flexible uplink subframes, which can be according to dynamic uplink/downlink subframe configurations, to be determined.
Foregoing units can be one or more of the aforementioned modules of device 1502, and/or be configured as executing by preceding
State the function that unit is enumerated, device 1502 processing system 1614.As described above, processing system 1614 may include at TX
Manage device 668, RX processor 656 and controller/processor 659.In this way, in one configuration, foregoing units can be TX processing
It device 668, RX processor 656 and is configured as executing the controller/processor 659 for the function of being enumerated by foregoing units.
It will be appreciated that the particular order or level of in the disclosed process the step of are saying to illustrative methods
It is bright.Based on design preference, it should be appreciated that it is described during the step of particular order or level can rearrange.This
Outside, it can combine or omit some steps.Appended claim to a method presents the element of each step in sample order, and
And it is not meant to be limited to presented particular order or level.
To enable any person skilled in the art to practice various aspects described herein, retouching before providing
It states.To those skilled in the art, the various modifications in terms of these will be apparent, also, is defined herein
General Principle can be adapted for other aspects.Therefore, claim is not intended to be limited to aspect shown in this paper, but
Meet the widest scope consistent with claim language, wherein be not intended to mean to the reference of element in the singular
" one and only one " (except non-specifically such explanation), and refer to " one or more ".Word used herein
" exemplary " means " being used as example, example or explanation ".It need not be explained here depicted as any aspect of " exemplary "
For " more more preferable than other aspects or more advantageous ".Special provision unless otherwise, otherwise word "some" refer to one
Or it is multiple.Such as " at least one of A, B or C ", " at least one of A, B and C ", and " A, B, C or any combination thereof "
Equal combinations include any combination of A, B and/or C, and may include multiple A, multiple B or multiple C.Specifically, such as " A, B
Or at least one of C ", the combinations such as " at least one of A, B and C " and " A, B, C or any combination thereof " can be only A,
Only B, only C, A and B, A and C, B and C or A and B and C, wherein any such combination may include one in A, B or C or
Multiple members.All equivalent structures and functional equivalent of the element of the various aspects described through present disclosure are (right
For those of ordinary skill in the art be it is known or later it is to be understood that) be expressly incorporated into herein, and purport
By encompassed in the claims.In addition, all the elements disclosed herein are not the public to be contributed to, no matter this disclosure
Whether content is clearly stated in the claims.Any element of claim shall not be construed to function list
Member, unless the element clearly uses phrase " unit being used for ... " Lai Chenshu.