CN107105509A

CN107105509A - A kind of method and apparatus for reducing communication delay

Info

Publication number: CN107105509A
Application number: CN201610091593.6A
Authority: CN
Inventors: 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2016-02-19
Filing date: 2016-02-19
Publication date: 2017-08-29

Abstract

The invention discloses a kind of method and apparatus for reducing communication delay.UE receives the first signaling.For each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The target-subframe configuration is one kind in K kind sub-frame configurations.Wherein, first signaling is physical layer signaling, and the K is more than 1, and the K kinds sub-frame configuration includes { the first sub-frame configuration, the second sub-frame configuration }.The corresponding subframe of first sub-frame configuration includes { first time between-line spacing, the first protection interval, between-line spacing on first }.The corresponding subframe of second sub-frame configuration includes at least one of { second time between-line spacing, second on between-line spacing }.Each subframe in the target-subframe set can be arranged to sub-frame of uplink by SIB.It is of the invention to be configured according to storage UE and the UE for supporting short TTI ratio dynamic adjustment TDD UL/DL, reduce HARQ-ACK delay.In addition, the present invention can reuse eIMTA DCI, empty overhead is reduced.

Description

A kind of method and apparatus for reducing communication delay

Technical field

The present invention relates to the transmission plan in wireless communication system, more particularly to based on TDD (Time Division Duplex, time division duplex) low latency transmission method and apparatus.

Background technology

Traditional 3GPP (3rd Generation Partner Project, third generation affiliate Project) in LTE (Long Term Evolution, Long Term Evolution) system, define TDD (Time Division Duplex, time division duplex) and FDD (Frequency Division Duplex, FDD) two kinds of duplex modes.For TDD LTE, 3GPP define at present 7 kinds of UL (Uplink, It is up)/DL (Downlink, descending) configurations, as shown in table 1.Wherein D represents descending son Frame, U represents sub-frame of uplink, and S is special subframe：

Table 1:TDD LTE UL/DL configurations

EIMTA (enhanced Interference Management are introduced in 3GPP R12 Traffic Adaptation, enhanced interference management service adaptation) technology, that is, pass through dynamic TDD UL/DL configurations in signal deployment TDD UL/DL config update time windows, the TDD UL/DL The length of config update time window is that the cycle is matched somebody with somebody in TDD UL/DL configurations again, and the TDD UL/DL match somebody with somebody That puts is again { 10,20,40,80,640 } ms (millisecond, millisecond) with the cycle One.

In traditional LTE, TTI (Transmission Time Interval, Transmission Time Interval) Or subframe or PRB (Physical Resource Block) it is right in time to (Pair) Answer a ms (milli-second, millisecond).One LTE subframe includes two time slot (Time Slot)-it is the first time slot and the second time slot respectively.In 3GPP RAN (Radio Access Network, wireless access network) in #63 plenary session, reduce the delay of LTE network this problem Come into question.The delay of Long Term Evolution (LTE-Long Term Evolution) network includes sky Transmission delay between mouth delay, signal transacting delay, node etc..With wireless access network and core The upgrading of heart net, transmission delay is can be effectively reduced.With new half for possessing higher height reason speed The application of conductor, signal transacting delay is significantly reduced.Therefore reduction eats dishes without rice or wine delay as reduction The effective means of LTE network delay.One intuitively solution be to introduce short TTI, it is described short TTI duration is less than 1 millisecond.

The content of the invention

Inventor has found that coexisting for short TTI and eIMTA needs what is solved as one by studying Problem.Specifically, there is following problem to need consideration：

In-.eIMTA, time-domain resource and actual TDD UL/DL shared by HARQ-ACK are matched somebody with somebody Put unrelated, cost is the increase in HARQ-ACK delay.And for short TTI, the cost is not It is acceptable.

In the short TTI of-, new TDD UL/DL configurations or new sub-frame configuration are likely to occur, And eIMTA-RNTI (fix tentatively by Radio Network Temporary Identifier, wireless network Mark) mark DCI (Downlink Control Information, Downlink Control Information) The new TDD UL/DL configurations or new subframe structure can not be indicated.

This problem coexists for short TTI and eIMTA, the invention provides solution.Need It is noted that in the case where not conflicting, UE (the User Equipment, Yong Hushe of the application It is standby) in embodiment and embodiment in feature may apply in base station, vice versa.Further , in the case where not conflicting, the feature in embodiments herein and embodiment can be arbitrarily mutual Combination.

The invention discloses a kind of method in UE for supporting low latency radio communication, wherein, bag Include following steps：

- step A. receives the first signaling.For each subframe in target-subframe set, first Signaling indicates target-subframe configuration.The target-subframe configuration is one kind in K kind sub-frame configurations.

Wherein, first signaling is physical layer signaling, and the K is more than 1, the K kinds subframe Configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration is corresponding Subframe includes { first time between-line spacing, the first protection interval (GP, Guard Period), on first Between-line spacing }.The corresponding subframe of second sub-frame configuration includes that { second time between-line spacing, second is up At least one of interval }.Each subframe in the target-subframe set can be by SIB (System Information Block, system information block) is arranged to sub-frame of uplink.

In the present invention, lower between-line spacing is reserved for downlink transfer, and upper between-line spacing is reserved for up biography It is defeated.

Each subframe in the target-subframe set can be arranged to sub-frame of uplink by SIB is Refer to：In the target-subframe set subframe numbers of all subframes in TDD radio frames belong to 2, 3,4,7,8,9 }.

In the above method, target-subframe dynamically can be configured to include protection interval by the first signaling Sub-frame configuration, even if the target-subframe can not be configured as special subframe in traditional SIB. The above method allows essentially to traditional TDD UL/DL configurations (as shown in table 1) and new TDD UL/DL Switching at runtime between configuration (the UL/DL configurations outside table 1).So that according to storage (legacy) Dynamically adjustment TDD UL/DL are configured as possibility to UE and the short TTI of support UE ratio.

As one embodiment, under the duration of first time between-line spacing and described second in the ranks Every duration be different.

As one embodiment, on described first on the duration and described second of between-line spacing in the ranks Every duration be different.

As one embodiment, it can be used in the lower between-line spacing of base station side (by base station) descending Send, base station side it is described on between-line spacing can (by base station) be used for uplink receiving.It is used as one Embodiment, is that can not be used for descending transmission (by base station) in the protection interval of base station side, Uplink receiving can not be used for (by base station).

As one embodiment, first signaling is identified by eIMTA-RNTI.

As one embodiment, the K is 2, i.e., only include { first in described K kinds sub-frame configuration Sub-frame configuration, the second sub-frame configuration }.

Implement vertical as one, the K is 2, the K kinds sub-frame configuration is that subframe is specific (i.e. For the different subframes in the target-subframe set, the K kinds sub-frame configuration is probably different ).

Implement vertical as one, the K is 2, and the K kinds sub-frame configuration is the target-subframe Set is public, and (i.e. for all subframes in the target-subframe set, the K kinds subframe is matched somebody with somebody It is identical to put).

As one embodiment, the K is 3.

As one embodiment, the K is 4.

As one embodiment, the corresponding subframe of second sub-frame configuration is included { under described second Between-line spacing, the second protection interval, between-line spacing on described second }.It is used as a son of the present embodiment The duration of embodiment, the duration of first time between-line spacing and second time between-line spacing Different, on described first on the duration of between-line spacing and described second between-line spacing it is lasting when Between be different.

As one embodiment, the corresponding subframe of second sub-frame configuration only includes { described second At least one of lower between-line spacing, between-line spacing on described second }.I.e. described second sub-frame configuration pair Answer descending sub frame, or sub-frame of uplink.

As one embodiment, it is wireless that the subframe in the target-subframe set belongs to same TDD (Radio) frame (Frame).

As one embodiment, the target-subframe set is included in TDD radio frames can be by The subframe of the DCI institutes flexible configuration of eIMTA-RNTI marks.

As one embodiment, the corresponding subframe of second sub-frame configuration is that { described second is descending Interval, between-line spacing on described second } in one, the duration of second time between-line spacing is 1 Millisecond, the duration of between-line spacing is 1 millisecond on described second.

Specifically, according to an aspect of the present invention, it is characterised in that the step A also includes Following steps：

- step A0. receives the second signaling, and the second signaling indicates { very first time resource, the second time At least one of resource }.

Wherein, second signaling is high-level signaling.Have at least one in the target-subframe set It is individual to give stator frame, it is described to include to stator frame in { very first time interval, the second time interval } extremely It is one of few.The very first time, interval belonged to very first time resource, and the second time interval belonged to for the second time Resource.The very first time resource can be used to transmit { Downlink Control Information, descending HARQ-ACK } At least one of, second time resource can be used for the transmission of ascending control information.In son Frame in, the very first time interval belongs to first time between-line spacing, the very first time interval category In second time between-line spacing.In subframe, it is up that second time interval belongs to described first Interval, second time interval belongs to between-line spacing on described second.

In the above method, base station is that UE has been reserved for transmitting control information or HARQ-ACK Time resource, reserved time resource does not change with first signaling, thus avoid UE because The non-signaling of correct decoding first and lead to not correctly receive and dispatch control information or HARQ-ACK.Enter one Step, the essence of the above method is that first signaling is only adapted dynamically the target-subframe collection It is in conjunction and not by second signaling reserve time-domain resource, the above method ensure that low latency this One short TTI advantage.

As one embodiment, the ascending control information includes { CSI (Channel Status At least one of Information, channel condition information), ascending HARQ-ACK }.

As one embodiment, when the very first time resource includes the positive integer periodically occurred Between be spaced.

As one embodiment, when second time resource includes the positive integer periodically occurred Between be spaced.

As one embodiment, second signaling be RRC (Radio Resource Control, Wireless heterogeneous networks) signaling.

- step A1. receives the 3rd signaling.

Methods described also comprises the following steps：

- step B. handles the first wireless signal.

Wherein, the 3rd signaling includes the schedule information of first wireless signal.The processing It is to receive, or the processing is to send.The schedule information includes { MCS (Modulation and Coding Schemes, modulation coding mode), RV (Redundancy Version, redundancy version At least one of this number), shared frequency domain resource }.

As one embodiment, the 3rd signaling is physical layer signaling.

As one embodiment, time-domain resource shared by first wireless signal and { described the One signaling, the 3rd signaling } at least the first signaling it is related.It is used as one of the present embodiment Sub- embodiment, the UE determines schedulable time resource according to the first signaling, and the 3rd signaling is from institute State indicated in schedulable time resource shared by first wireless signal when be intended to resource.

As one embodiment, time-domain resource shared by first wireless signal and { described the One signaling, the 3rd signaling } at least the first signaling it is unrelated.The schedule information includes institute The time-domain resource of occupancy, i.e., described 3rd signaling includes the time domain shared by first wireless signal Resource.As a sub- embodiment of the present embodiment, the 3rd signaling indicates from a sub- frame in Time-domain resource shared by one wireless signal.

As one embodiment, the processing is to receive, the corresponding physics of first wireless signal Layer channel is that PDSCH (share by Physical Downlink Shared Channel, physical down Channel) (i.e. described first wireless signal is transmitted on PDSCH).

As one embodiment, the processing is to send, the corresponding physics of first wireless signal Layer channel is PUSCH (Physical Uplink Shared Channel, the shared letter of physical uplink Road) (i.e. described first wireless signal is transmitted on PUSCH).

As one embodiment, the processing is to receive, the corresponding transmission of first wireless signal Channel is DL-SCH (Downlink Shared Channel, DSCH Downlink Shared Channel) (i.e. described The corresponding upper layer information bit of one wireless signal is transmitted on DL-SCH).As one embodiment, The processing is to send, and the corresponding transmission channel of first wireless signal is UL-SCH DL-SCH (Uplink Shared Channel, Uplink Shared Channel) (i.e. described first wireless signal correspondence Upper layer information bit transmit on the ul-sch).

Specifically, according to an aspect of the present invention, it is characterised in that also comprise the following steps：

- step C. operates second wireless singal.

Wherein, it is described processing be receive and it is described operation be send, or it is described processing be send and The operation is to receive.The second wireless singal indicates whether first wireless signal is correct Decoding.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

As one embodiment, the operation is to receive, shared by the second wireless singal when Domain resource belongs to the very first time resource.

As one embodiment, the operation is to send, shared by the second wireless singal when Domain resource belongs to second time resource.

Specifically, according to an aspect of the present invention, it is characterised in that the first signaling is to be used for The DCI that UL/DL configurations are indicated.

As one embodiment, the first signaling be can by storage (Legacy) UE recognize by The DCI of eIMTA-RNTI marks.

As one embodiment, the K is 2.

In above-mentioned aspect, the existing DCI dynamic instructions that indicate of being configured for UL/DL are reused new UL/DL is configured, it is to avoid use the increase of redundancy overhead and blind Detecting number of times caused by new DCI.

The invention discloses a kind of method in base station for supporting low latency radio communication, wherein, bag Include following steps：

- step A. sends the first signaling.For each subframe in target-subframe set, first Signaling indicates target-subframe configuration.The target-subframe configuration is one kind in K kind sub-frame configurations.

Wherein, first signaling is physical layer signaling, and the K is more than 1, the K kinds subframe Configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration is corresponding Subframe includes { first time between-line spacing, the first protection interval, between-line spacing on first }.Second son Frame, which configures corresponding subframe, to be included at least one of { second time between-line spacing, second on between-line spacing }. Each subframe in the target-subframe set can be arranged to sub-frame of uplink by SIB.

- step A0. sends the second signaling, and the second signaling indicates { very first time resource, the second time At least one of resource }.

- step A1. sends the 3rd signaling.

Methods described also comprises the following steps：

- step B. operates the first wireless signal.

Wherein, the 3rd signaling includes the schedule information of first wireless signal.The operation It is to receive, or the operation is to send.The schedule information include MCS, RV, it is shared At least one of frequency domain resource }.

- step C. handles second wireless singal.

Wherein, it is described operation be receive and it is described processing be send, or it is described operation be send and The processing is to receive.The second wireless singal indicates whether first wireless signal is correct Decoding.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

The invention discloses a kind of user equipment for supporting low latency radio communication, wherein, including such as Lower module：

First receiving module：For receiving the first signaling.For each in target-subframe set Subframe, the first signaling indicates target-subframe configuration.The target-subframe configuration is K kind sub-frame configurations In one kind.

As one embodiment, above-mentioned user equipment is characterised by, first receiving module is also For receiving the second signaling, the second signaling is indicated in { very first time resource, the second time resource } At least one.

As one embodiment, above-mentioned user equipment is characterised by, in addition to following module：

- the second receiving module：For receiving the first wireless signal.

- the first sending module：For sending second wireless singal.

Wherein, first receiving module is additionally operable to receive the 3rd signaling.3rd signaling includes The schedule information of first wireless signal.The schedule information include MCS, RV, it is shared At least one of frequency domain resource }.The second wireless singal indicates that first wireless signal is It is no to be properly decoded.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

- the second sending module：For sending the first wireless signal.

- the three receiving module：For receiving second wireless singal.

The invention discloses a kind of base station equipment for supporting low latency radio communication, wherein, including such as Lower module：

3rd sending module：For sending the first signaling.For each in target-subframe set Subframe, the first signaling indicates target-subframe configuration.The target-subframe configuration is K kind sub-frame configurations In one kind.

As one embodiment, above-mentioned base station equipment is characterised by, the 3rd sending module is also For sending the second signaling, the second signaling is indicated in { very first time resource, the second time resource } At least one.

As one embodiment, above-mentioned base station equipment is characterised by, in addition to following module：

4th receiving module：For receiving the first wireless signal.

4th sending module：For sending second wireless singal.

Wherein, the 3rd sending module is additionally operable to send the 3rd signaling.3rd signaling includes The schedule information of first wireless signal.The schedule information include MCS, RV, it is shared At least one of frequency domain resource }.The second wireless singal indicates that first wireless signal is It is no to be properly decoded.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

5th sending module：For sending the first wireless signal.

5th receiving module：For receiving second wireless singal.

Compared to existing public technology, the present invention has following technical advantage：

- can dynamically be adjusted according to storage (legacy) the UE and UE for supporting short TTI ratio TDD UL/DL are configured

- reduces HARQ-ACK delay

- reuses existing DCI as far as possible, reduces empty overhead.

Brief description of the drawings

By reading the detailed description made to non-limiting example made with reference to the following drawings, this The other features, objects and advantages of invention will become more apparent：

Fig. 1 shows the flow chart of the transmission of downlink signaling according to an embodiment of the invention；

Fig. 2 shows the flow chart of downlink data transmission according to an embodiment of the invention；

Fig. 3 shows the flow chart of transmitting uplink data according to an embodiment of the invention；

Fig. 4 shows the first sub-frame configuration according to an embodiment of the invention and the second sub-frame configuration Schematic diagram；

Fig. 5 shows very first time resource according to an embodiment of the invention and the second time money The schematic diagram in source；

Fig. 6 shows very first time resource and the second time according to still another embodiment of the invention The schematic diagram of resource；

Fig. 7 shows according to an embodiment of the invention true according to the first signaling and the second signaling The schematic diagram of fixed actual UL/DL configurations；

Fig. 8 shows that basis according to an embodiment of the invention reserves resource and determines sub-frame configuration Schematic diagram；

Fig. 9 shows the structured flowchart of the processing unit in UE according to an embodiment of the invention；

Figure 10 shows the structural frames of the processing unit in UE according to still another embodiment of the invention Figure；

Figure 11 shows the structural frames of the processing unit in base station according to an embodiment of the invention Figure；

Figure 12 shows the structure of the processing unit in base station according to still another embodiment of the invention Block diagram；

Embodiment

Technical scheme is described in further detail below in conjunction with accompanying drawing, it is necessary to illustrate It is that, in the case where not conflicting, the feature in embodiments herein and embodiment can be arbitrarily mutual Combination.

Embodiment 1

Embodiment 1 illustrates the flow chart of the transmission of downlink signaling, as shown in Figure 1.In accompanying drawing 1, The step of base station N1 is mark in the maintenance base station of UE U2 serving cell, square frame F1 is optional step Suddenly.

ForBase station N1, the second signaling is sent in step s 11, and first is sent in step s 12 Signaling.ForUE U2, the second signaling is received in the step s 21, and is received in step S22 One signaling.

In embodiment 1, second signaling is high-level signaling, and the second signaling indicates that { very first time provides At least one of source, the second time resource }.First signaling is physical layer signaling, for Each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The target Sub-frame configuration is one kind in K kind sub-frame configurations.The K is more than 1, the K kinds sub-frame configuration Include { the first sub-frame configuration, the second sub-frame configuration }.The corresponding subframe of first sub-frame configuration Including { first time between-line spacing, the first protection interval, between-line spacing on first }.Second subframe is matched somebody with somebody Putting corresponding subframe includes at least one of { second time between-line spacing, second on between-line spacing }.It is described Each subframe in target-subframe set can be arranged to sub-frame of uplink by SIB.The target-subframe There is at least one in set to stator frame, it is described to include { very first time interval, when second to stator frame Between be spaced at least one of.The very first time, interval belonged to very first time resource, and the second time interval belongs to In the second time resource.The very first time resource can be used for transmission Downlink Control Information, it is descending At least one of HARQ-ACK }, second time resource can be used for the biography of ascending control information It is defeated.In subframe, the very first time interval belongs to first time between-line spacing, the very first time Interval belongs to second time between-line spacing.In subframe, second time interval belongs to described first Upper between-line spacing, second time interval belongs to between-line spacing on described second.First time between-line spacing and Two times between-line spacings are reserved on downlink transfer, first that between-line spacing is reserved in between-line spacing and second Uplink.

As the sub- embodiment 1 of embodiment 1, the first signaling is to configure the DCI indicated for UL/DL, Identified by eIMTA-RNTI.

As the sub- embodiment 2 of embodiment 1, each subframe in the target-subframe set is wrapped Include at least one of { very first time interval, the second time interval }.

As the sub- embodiment 3 of embodiment 1, each subframe energy quilt in the target-subframe set It is arranged to MBMS subframes, i.e., all subframes are in TDD radio frames in described target-subframe set Subframe numbers are belonged to { 3,4,7,8,9 }.

As the sub- embodiment 4 of embodiment 1, all subframes in the target-subframe set belong to same One radio frames.

Embodiment 2

Embodiment 2 illustrates the flow chart of downlink data transmission, as shown in Figure 2.In accompanying drawing 2, Base station N1 is the maintenance base station of UE U2 serving cell.

ForBase station N1, the 3rd signaling is sent in step s 13, and first is sent in step S14 Wireless signal, second wireless singal is received in step S15.ForUE U2, in step S23 The 3rd signaling of middle reception, receives the first wireless signal, sends in step s 25 in step s 24 Second wireless singal.

In embodiment 2, the 3rd signaling includes the schedule information of first wireless signal.Institute Stating schedule information includes at least one of { MCS, RV, shared frequency domain resource }.Described Two wireless signals indicate whether first wireless signal is properly decoded.Shared by second wireless singal Time-domain resource and the first signaling are unrelated.

As the sub- embodiment 1 of the embodiment 2, the 3rd signaling is to be used for descending authorize (Grant) DCI.

As the sub- embodiment 2 of the embodiment 2, the time-domain resource category shared by second wireless singal Second time resource in the present invention.

As the sub- embodiment 3 of the embodiment 2, the UE determines schedulable according to the first signaling Wideband symbol, the 3rd signaling indicates the first wireless signal institute from the schedulable wideband symbol The wideband symbol of occupancy.The wideband symbol is OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol, or the wideband symbol is Other symbols.As a sub- embodiment, other described symbols are SCMA (Sparse Code Multiple Access, Sparse Code multiple access) symbol, or other described symbols are F (Filtered) - OFDM symbol.As a sub- embodiment, the schedulable wideband symbol belongs to same subframe.

As the sub- embodiment 4 of the embodiment 2, the 3rd signaling indicates first from a sub- frame in The wideband symbol shared by wireless signal.

It is used as the sub- embodiment 5 of the embodiment 2, available institute of the 3rd signaling from a sub- frame in State and the wideband symbol shared by the first wireless signal is indicated in wideband symbol.One son The available wideband symbol of frame in refer to the reserved wideband symbol of the removing of sub- frame in it The outer wideband symbol.The reserved wideband symbol is by the very first time in the present invention The wideband symbol shared by resource and second time resource.

Compared to the sub- embodiment 4 of the embodiment 2, the sub- embodiment 5 of the embodiment 2 can be entered One step reduces the redundancy overhead of the 3rd signaling.

Embodiment 3

Embodiment 3 illustrates the flow chart of transmitting uplink data, as shown in Figure 3.In accompanying drawing 3, Base station N1 is the maintenance base station of UE U2 serving cell.

ForBase station N1, the 3rd signaling is sent in step s 16, and first is received in step S17 Wireless signal, second wireless singal is sent in step S18.ForUE U2, in step S26 The 3rd signaling of middle reception, sends the first wireless signal in step s 27, is received in step S28 Second wireless singal.

In embodiment 3, the 3rd signaling includes the schedule information of first wireless signal.Institute Stating schedule information includes at least one of { MCS, RV, shared frequency domain resource }.Described Two wireless signals indicate whether first wireless signal is properly decoded.Shared by second wireless singal Time-domain resource and the first signaling are unrelated.

It is used as the sub- embodiment 1 of the embodiment 3, available width of the 3rd signaling from a sub- frame in The wideband symbol shared by the first wireless signal is indicated in tape symbol.In one subframe can Wideband symbol refers to the removing of a sub- frame in by the very first time resource in the present invention With the wideband symbol outside the wideband symbol shared by second time resource.The broadband Symbol be SC-FDMA (Single Carrier Frequency Division Multiple Access, Single-carrier frequency division multiple access) symbol, or the wideband symbol is other symbols.It is real as a son Example is applied, other described symbols are SCMA symbols, or other described symbols are F-OFDM symbols.

As the sub- embodiment 2 of the embodiment 3, the time-domain resource category shared by second wireless singal The very first time resource in the present invention.

Embodiment 4

Embodiment 4 illustrates the schematic diagram of the first sub-frame configuration and the second sub-frame configuration, such as the institute of accompanying drawing 4 Show.In accompanying drawing 4, first time between-line spacing in the oblique line mark present invention, backslash identifies this hair In bright described first on between-line spacing, horizontal line mark the present invention in second time between-line spacing, vertical line Between-line spacing on described second in the present invention is identified, between the first protection during orthogonal cross wires mark is of the invention Every the second protection interval in the oblique cross wires mark present invention.

In embodiment 4, the duration of first time between-line spacing and the duration of second time between-line spacing are not Together, the duration of between-line spacing is different with the duration of between-line spacing on second on first.SIB is indicated UL/DL configuration be that storage UE can be recognized.

As the sub- embodiment 1 of embodiment 4, between the duration of the first protection interval and the second protection Every duration it is identical.

As the sub- embodiment 2 of embodiment 4, on the duration and second of first time between-line spacing in the ranks Every duration it is identical.

As the sub- embodiment 3 of embodiment 4, the duration of first time between-line spacing, under second in the ranks Every duration all configured by high-level signaling.

As the sub- embodiment 4 of embodiment 4, between the duration of the first protection interval and the second protection Every duration be equal to by TDD-Config IE (Information Element, information list Member) configuration special subframe in protection interval duration.

Embodiment 5

Embodiment 5 illustrates the schematic diagram of very first time resource and the second time resource, such as accompanying drawing 5 It is shown.In accompanying drawing 5, the part of oblique line mark very first time resource in a radio frame, backslash Identify the part of this second time resource in a radio frame.

As the sub- embodiment 1 of embodiment 5, very first time resource distribution is in multiple time windows, and One time resource time-domain resource shared in each time window is identical.It is real as a son Example is applied, the time window is radio frames.As another sub- embodiment, the time window it is lasting when Between can configure.

As the sub- embodiment 2 of embodiment 5, the second time resource is distributed in multiple time windows, the Two time resources time-domain resource shared in each time window is identical.

As the sub- embodiment 3 of embodiment 5, in shared subframe, very first time resource and Two time resources are that occur simultaneously.

As the sub- embodiment 4 of embodiment 5, second signaling in the present invention includes being used to indicate The information of new UL/DL configurations, the new UL/DL configure corresponding radio frames subframe numbers 3,4, 7,8,9 } one or more of exist in subframe in protection interval, one or more of subframes Each subframe include the very first time resource and second time resource.

Embodiment 6

Embodiment 6 illustrates the schematic diagram of another very first time resource and the second time resource, such as attached Shown in Fig. 6.In accompanying drawing 6, the very first time resource in the oblique line mark present invention is wireless at one Second time resource in part in frame, the backslash mark present invention is in a radio frame Part.

In embodiment 6, very first time resource and the second time resource are by second letter in the present invention Order difference (Separately) configuration.

As the sub- embodiment 1 of embodiment 6, very first time resource distribution is in multiple time windows, and first Time resource time-domain resource shared in each time window is identical.Second time resource point Cloth is in multiple time windows, and the second time resource time-domain resource shared in each time window is Identical.As a sub- embodiment, the time window is radio frames.As another sub- embodiment, The duration of the time window can configure.

Embodiment 7

Embodiment 7 is illustrated determines what actual UL/DL was configured according to the first signaling and the second signaling Schematic diagram, as shown in Figure 7.In accompanying drawing 7, the very first time money in the oblique line mark present invention Second time resource in the part of source in a radio frame, the backslash mark present invention is one Part in individual radio frames.Horizontal line, vertical line and oblique cross wires are identified in actual UL/DL configurations respectively Lower between-line spacing, upper between-line spacing and protection interval.The actual UL/DL configurations are a kind of new UL/DL configurations (compare table 1), are that storage UE is not supported.

In embodiment 7, first signaling in the present invention is the DCI identified by eIMTA-RNTI, The target-subframe set in the present invention is the union of the first sub-frame set and the second sub-frame set.Institute State the first sub-frame set be can be by eIMTA signalings institute flexible configuration in radio frames indicated by the first signaling Subframe set (subframe numbers 3,4,6,7,8,9 in respective figure 7), the second subframe collection Conjunction is by very first time resource or by the second time resource in radio frames indicated by first signaling The set (subframe numbers 3,4,8,9 in respective figure 7) of the subframe of occupancy.

In embodiment 7, for each subframe in the target-subframe set, if by the first signaling Descending sub frame is designated as, then corresponding sub-frame configuration is (actual as described for the descending sub-frame configuration being dominant UL/DL configuration in subframe 4, shown in 9)；If being designated as sub-frame of uplink by the first signaling, Then corresponding sub-frame configuration is the up sub-frame configuration being dominant (as described in actual UL/DL configurations Subframe 3, shown in 8).

In embodiment 7, the first signaling can be adjusted according to up-downgoing portfolio upper between-line spacing and under in the ranks Every ratio, by can by storage UE compatibility.In addition, the first signaling does not change matching somebody with somebody for the second signaling Put, i.e., very first time resource and the second time resource correspond to the lower between-line spacing respectively and be described in the ranks Every (as shown in dotted line L1 and L2), it is to avoid influence control to believe due to the reception failure of the first signaling The transmission of breath.

Embodiment 8

Embodiment 8 illustrates the schematic diagram that sub-frame configuration is determined according to reserved resource, as shown in Figure 8. In accompanying drawing 8, part of the very first time resource in a subframe in the oblique line mark present invention, Part of second time resource in a subframe in the backslash mark present invention.Horizontal line, is erected Line and oblique cross wires identify the lower between-line spacing in actual UL/DL configurations, upper between-line spacing and protection respectively Interval.

In embodiment 8, the K kinds sub-frame configuration in the present invention is that subframe is specific：

The subframe that-is identified for R1 (is provided including very first time resource and the second time simultaneously Source), if being designated as descending sub frame by first signaling in the present invention, correspond to descending account for Excellent subframe (as shown in arrow D1)；If be designated as by first signaling in the present invention up Subframe, then correspond to the up subframe that is dominant (as shown in arrow U1).

The subframe (only including the second time resource) that-is identified for R2, if of the invention In first signaling be designated as descending sub frame, then correspond to the descending subframe that is dominant (such as arrow D2 It is shown)；If being designated as sub-frame of uplink by first signaling in the present invention, correspond to up Subframe (as shown in arrow U2).

The subframe (only including very first time resource) that-is identified for R3, if of the invention In first signaling be designated as descending sub frame, then correspond to descending sub frame (as shown in arrow D3)； If being designated as sub-frame of uplink by first signaling in the present invention, the up subframe that is dominant is corresponded to (as shown in arrow U3).

In embodiment 8, base station can balance the compatibility of demand and storage UE to sub-frame configuration of short delay Property demand.

Embodiment 9

Embodiment 9 illustrates the structured flowchart of the processing unit in a UE, as shown in Figure 9.It is attached In Fig. 9, UE processing units 200 are main by the first receiving module 201, the He of the second receiving module 202 First sending module 203 is constituted.

First receiving module 201 is used to receive { the first signaling, the second signaling, the 3rd signaling }.It is right Each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The mesh Mark sub-frame configuration is one kind in K kind sub-frame configurations.The instruction of second signaling very first time resource, At least one of second time resource }.Second receiving module 202 is used to receive the first wireless communication Number.First sending module 203 is used to send second wireless singal.

In embodiment 9, first signaling is physical layer signaling, and the K is more than 1, the K Planting sub-frame configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration Corresponding subframe includes { first time between-line spacing, the first protection interval, between-line spacing on first }.It is described The corresponding subframe of second sub-frame configuration is included in { second time between-line spacing, second on between-line spacing } at least One of.Each subframe in the target-subframe set can be arranged to sub-frame of uplink by SIB.Institute It is high-level signaling to state the second signaling.There is at least one in the target-subframe set to stator frame, It is described to include at least one of { very first time interval, the second time interval } to stator frame.First Time interval belongs to very first time resource, and the second time interval belongs to the second time resource.Described One time resource can be used for transmit { Downlink Control Information, descending HARQ-ACK } at least it One, second time resource can be used for the transmission of ascending control information.It is described in subframe The very first time, interval belonged to first time between-line spacing, and the very first time interval belongs to described second Lower between-line spacing.In subframe, second time interval belongs to between-line spacing on described first, described Second time interval belongs to between-line spacing on described second.It is wireless that 3rd signaling includes described first The schedule information of signal.The schedule information is included in { MCS, RV, shared frequency domain resource } At least one of.The second wireless singal indicates whether first wireless signal is correctly translated Code.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

As the sub- embodiment 1 of embodiment 9, the K kinds sub-frame configuration is that subframe is specific.

As the sub- embodiment 2 of embodiment 9, first wireless signal is transmitted on DL-SCH. The second wireless singal is ascending HARQ-ACK, is transmitted on second time resource.

As the sub- embodiment 3 of embodiment 9, the 3rd signaling is in the very first time resource Transmission.

As the sub- embodiment 4 of embodiment 9, the very first time resource and second time money Source is respectively configured.

Embodiment 10

Embodiment 10 illustrates the structured flowchart of the processing unit in a UE, as shown in Figure 10. In accompanying drawing 10, UE processing units 300 are main by the first receiving module 301, the second sending module 302 Constituted with the 3rd receiving module 303.

First receiving module 301 is used to receive { the first signaling, the second signaling, the 3rd signaling }.It is right Each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The mesh Mark sub-frame configuration is one kind in K kind sub-frame configurations.The instruction of second signaling very first time resource, At least one of second time resource }.Second sending module 302 is used to send the first wireless communication Number.3rd receiving module 303 is used to receive second wireless singal.

In embodiment 10, first signaling is physical layer signaling, and the K is more than 1, the K Planting sub-frame configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration Corresponding subframe includes { first time between-line spacing, the first protection interval, between-line spacing on first }.It is described The corresponding subframe of second sub-frame configuration is included in { second time between-line spacing, second on between-line spacing } at least One of.Each subframe in the target-subframe set can be configured to MBMS subframes.It is described Second signaling is high-level signaling.There is at least one in the target-subframe set to stator frame, institute State includes at least one of { very first time interval, the second time interval } to stator frame.When first Between interval belong to very first time resource, the second time interval belongs to the second time resource.Described first Time resource can be used at least one of transmission { Downlink Control Information, descending HARQ-ACK }, Second time resource can be used for the transmission of ascending control information.In subframe, described first Time interval belongs to first time between-line spacing, and it is descending that the very first time interval belongs to described second Interval.In subframe, second time interval belongs to between-line spacing on described first, described second Time interval belongs to between-line spacing on described second.3rd signaling includes first wireless signal Schedule information.The schedule information is included in { MCS, RV, shared frequency domain resource } extremely It is one of few.The second wireless singal indicates whether first wireless signal is properly decoded.The Time-domain resource and the first signaling shared by two wireless signals is unrelated.

As the sub- embodiment 1 of embodiment 10, the K kinds sub-frame configuration is that subframe is specific.

As the sub- embodiment 2 of embodiment 10, first wireless signal is transmitted on the ul-sch. The second wireless singal is descending HARQ-ACK, in the very first time transmitted over resources.

As the sub- embodiment 3 of embodiment 10, the 3rd signaling is in the very first time resource Transmission.

As the sub- embodiment 4 of embodiment 10, the very first time resource and second time money Source is respectively configured.

Embodiment 11

Embodiment 11 illustrates the structured flowchart of the processing unit in a base station, as shown in Figure 11. In accompanying drawing 11, base station processing unit 400 is main by the 3rd sending module 401, the 5th sending module 402 Constituted with the 5th receiving module 403.

3rd sending module 401 is used to send { the first signaling, the second signaling, the 3rd signaling }.It is right Each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The mesh Mark sub-frame configuration is one kind in K kind sub-frame configurations.The instruction of second signaling very first time resource, At least one of second time resource }.5th sending module 402 is used to send the first wireless communication Number.5th receiving module 403 is used to receive second wireless singal.

In embodiment 11, first signaling is physical layer signaling, and the K is more than 1, the K Planting sub-frame configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration Corresponding subframe includes { first time between-line spacing, the first protection interval, between-line spacing on first }.It is described The corresponding subframe of second sub-frame configuration is included in { second time between-line spacing, second on between-line spacing } at least One of.Each subframe in the target-subframe set can be arranged to sub-frame of uplink by SIB.Institute It is high-level signaling to state the second signaling.There is at least one in the target-subframe set to stator frame, It is described to include at least one of { very first time interval, the second time interval } to stator frame.First Time interval belongs to very first time resource, and the second time interval belongs to the second time resource.Described One time resource can be used for transmit { Downlink Control Information, descending HARQ-ACK } at least it One, second time resource can be used for the transmission of ascending control information.It is described in subframe The very first time, interval belonged to first time between-line spacing, and the very first time interval belongs to described second Lower between-line spacing.In subframe, second time interval belongs to between-line spacing on described first, described Second time interval belongs to between-line spacing on described second.It is wireless that 3rd signaling includes described first The schedule information of signal.The schedule information is included in { MCS, RV, shared frequency domain resource } At least one of.The second wireless singal indicates whether first wireless signal is correctly translated Code.Time-domain resource and the first signaling shared by second wireless singal is unrelated.

As the sub- embodiment 1 of embodiment 11, the K kinds sub-frame configuration is that subframe is specific.

As the sub- embodiment 2 of embodiment 11, first wireless signal is transmitted on DL-SCH. The second wireless singal is ascending HARQ-ACK, is transmitted on second time resource.

As the sub- embodiment 3 of embodiment 11, the 3rd signaling is in the very first time resource Transmission.

As the sub- embodiment 4 of embodiment 11, the very first time resource and second time money Source is respectively configured by the second signaling.

Embodiment 12

Embodiment 12 illustrates the structured flowchart of the processing unit in a base station, as shown in Figure 12. In accompanying drawing 12, base station processing unit 500 is main by the 3rd sending module 501, the 4th receiving module 502 Constituted with the 4th sending module 503.

3rd sending module 501 is used to send { the first signaling, the second signaling, the 3rd signaling }.It is right Each subframe in target-subframe set, the first signaling indicates target-subframe configuration.The mesh Mark sub-frame configuration is one kind in K kind sub-frame configurations.The instruction of second signaling very first time resource, At least one of second time resource }.4th receiving module 502 is used to receive the first wireless communication Number.4th sending module 503 is used to send second wireless singal.

In embodiment 12, first signaling is physical layer signaling, and the K is more than 1, the K Planting sub-frame configuration includes { the first sub-frame configuration, the second sub-frame configuration }.First sub-frame configuration Corresponding subframe includes { first time between-line spacing, the first protection interval, between-line spacing on first }.It is described The corresponding subframe of second sub-frame configuration is included in { second time between-line spacing, second on between-line spacing } at least One of.Each subframe in the target-subframe set can be configured to MBMS subframes.It is described Second signaling is high-level signaling.There is at least one in the target-subframe set to stator frame, institute State includes at least one of { very first time interval, the second time interval } to stator frame.When first Between interval belong to very first time resource, the second time interval belongs to the second time resource.Described first Time resource can be used at least one of transmission { Downlink Control Information, descending HARQ-ACK }, Second time resource can be used for the transmission of ascending control information.In subframe, described first Time interval belongs to first time between-line spacing, and it is descending that the very first time interval belongs to described second Interval.In subframe, second time interval belongs to between-line spacing on described first, described second Time interval belongs to between-line spacing on described second.3rd signaling includes first wireless signal Schedule information.The schedule information is included in { MCS, RV, shared frequency domain resource } extremely It is one of few.The second wireless singal indicates whether first wireless signal is properly decoded.The Time-domain resource and the first signaling shared by two wireless signals is unrelated.

As the sub- embodiment 1 of embodiment 12, the K kinds sub-frame configuration is that subframe is specific.

As the sub- embodiment 2 of embodiment 12, first wireless signal is transmitted on the ul-sch. The second wireless singal is HARQ-ACK, in the very first time transmitted over resources.

As the sub- embodiment 3 of embodiment 12, the 3rd signaling is in the very first time resource Transmission.

As the sub- embodiment 4 of embodiment 12, the very first time resource and second time money Source is respectively configured by the second signaling.

One of ordinary skill in the art will appreciate that all or part of step in the above method can be with Related hardware is instructed to complete by program, described program can be stored in computer-readable storage medium In matter, such as read-only storage, hard disk or CD etc..Optionally, the whole of above-described embodiment or Part steps can also use one or more integrated circuit to realize.Accordingly, above-mentioned implementation Each modular unit in example, can be realized using example, in hardware, can also be by software function module Form realizes that the application is not limited to the combination of the software and hardware of any particular form.In the present invention UE or mobile terminal include but is not limited to mobile phone, tablet personal computer, notebook, card of surfing Internet, Vehicular communication equipment, the Wireless Telecom Equipment such as wireless senser.Base station in the present invention is included but not It is limited to macrocell base stations, microcell base station, Home eNodeB, the Wireless Telecom Equipment such as relay base station.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the present invention's Protection domain.Within the spirit and principles of the invention, any modification made, equivalent substitution, Improve etc., it should be included in the scope of the protection.

Claims

1. a kind of method in UE for supporting low latency radio communication, wherein, comprise the following steps：

2. according to the method described in claim 1, it is characterised in that the step A also includes Following steps：

3. the method according to claim 1-2, it is characterised in that the step A is also wrapped Include following steps：

- step A1. receives the 3rd signaling.

Methods described also comprises the following steps：

- step B. handles the first wireless signal.

Wherein, the 3rd signaling includes the schedule information of first wireless signal.The processing It is to receive, or the processing is to send.The schedule information include MCS, RV, it is shared At least one of frequency domain resource }.

4. method according to claim 3, it is characterised in that also comprise the following steps：

- step C. operates second wireless singal.

5. the method according to claim 1-4, it is characterised in that the first signaling is to be used for The DCI that UL/DL configurations are indicated.

6. a kind of method in base station for supporting low latency radio communication, wherein, including following step Suddenly：

7. method according to claim 6, it is characterised in that the step A also includes Following steps：

8. the method according to claim 6-7, it is characterised in that the step A is also wrapped Include following steps：

- step A1. sends the 3rd signaling.

Methods described also comprises the following steps：

- step B. operates the first wireless signal.

9. method according to claim 8, it is characterised in that also comprise the following steps：

- step C. handles second wireless singal.

10. the method according to claim 6-9, it is characterised in that the first signaling is to be used for The DCI that UL/DL configurations are indicated.

11. a kind of user equipment for supporting low latency radio communication, wherein, including following module：

12. user equipment according to claim 11, it is characterised in that described first connects Receive module to be additionally operable to receive the second signaling, the second signaling indicates { very first time resource, the second time At least one of resource }.

13. the user equipment according to claim 11-12, it is characterised in that also including such as Lower module：

- the second receiving module：For receiving the first wireless signal.

- the first sending module：For sending second wireless singal.

14. the user equipment according to claim 11-12, it is characterised in that also including such as Lower module：

- the second sending module：For sending the first wireless signal.

- the three receiving module：For receiving second wireless singal.

15. a kind of base station equipment for supporting low latency radio communication, wherein, including following module：

16. base station equipment according to claim 15, it is characterised in that the 3rd hair Module is sent to be additionally operable to send the second signaling, the second signaling indicates { very first time resource, the second time At least one of resource }.

17. the base station equipment according to claim 15-16, it is characterised in that also including such as Lower module：

4th receiving module：For receiving the first wireless signal.

4th sending module：For sending second wireless singal.

18. the base station equipment according to claim 15-16, it is characterised in that also including such as Lower module：

5th sending module：For sending the first wireless signal.

5th receiving module：For receiving second wireless singal.