CN106559202B - A kind of method, user equipment and base station equipment for supporting low latitude mouthful delay - Google Patents
A kind of method, user equipment and base station equipment for supporting low latitude mouthful delay Download PDFInfo
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- CN106559202B CN106559202B CN201510628707.1A CN201510628707A CN106559202B CN 106559202 B CN106559202 B CN 106559202B CN 201510628707 A CN201510628707 A CN 201510628707A CN 106559202 B CN106559202 B CN 106559202B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
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Abstract
The invention discloses the wireless communications methods and device of a kind of short TTI.As one embodiment, UE receives the first signaling in step 1, sends the second signaling in the first LTE time slot in step 2.Resource scheduled in first signaling includes the first PRB set in the first LTE subframe, first signaling indicates the first mapping mode from K kind candidate mappings mode, first mapping mode indicates the mode of resource impact of second signaling in the first PRB set, and the K is greater than 1 positive integer.First signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data.Second signaling includes HARQ-ACK, and the HARQ-ACK occupies L1 SC-FDMA symbol in time domain, and the L1 is no more than 7 positive integer.The present invention can eat dishes without rice or wine to postpone using uplink short TTI reduction, while the UCI transmitted in the short TTI of uplink being enabled to obtain frequency diversity gain.
Description
Technical field
The present invention relates to the transmission plans in wireless communication system, more particularly to based on long term evolution (LTE-Long
Term Evolution) low latency transmission method and apparatus.
Background technique
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program) RAN (Radio
Access Network, wireless access network) in #63 plenary session, reduces the delay of LTE network this project and be discussed.LTE net
The delay of network includes eating dishes without rice or wine to postpone, signal processing delay, the transmission delay etc. between node.With wireless access network and core net
Upgrading, transmission delay is effectively reduced.With the application for the new semiconductor for having higher height reason speed, signal processing prolongs
When be significantly reduced.
In LTE, TTI (Transmission Time Interval, Transmission Time Interval) either subframe or PRB
(Physical Resource Block) corresponds to a ms (milli-second, millisecond) to (Pair) in time.One
LTE subframe includes that two time slots (Time Slot)-are the first time slot and the second time slot respectively.PDCCH(Physical
Downlink Control Channel, Physical Downlink Control Channel) occupy PRB pair preceding R OFDM (Orthogonal
Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol, the R is no more than 4 positive integer, described
R is matched by PCFICH (Physical Control Format Indicator Channel, Physical Control Format Indicator Channel)
It sets.For FDD (Frequency Division Duplex, frequency division duplex) LTE, HARQ (Hybrid Automatic
Repeat reQuest, hybrid automatic repeat-request) the winding time is 8ms, a small amount of HARQ retransmits the net that will bring tens of ms
Network delay.Therefore reducing delay of eating dishes without rice or wine becomes the effective means for reducing LTE network delay.
Shorter TTI, which becomes, reduces a candidate scheme for eating dishes without rice or wine to postpone, however the TTI of shorter TTI and traditional 1ms
It there is compatibility.For the compatibility issue, the present invention provides solutions.It should be noted that not
In the case where conflict, the feature in embodiment and embodiment in the UE (User Equipment, user equipment) of the application can
To be applied in base station, vice versa.Further, in the absence of conflict, in embodiments herein and embodiment
Feature can be arbitrarily combined with each other.
Summary of the invention
It eats dishes without rice or wine to postpone to reduce, an intuitive method is using short TTI, such as the TTI of 0.5ms.Inventor is logical
It crosses the study found that when uplink TTI is less than 1ms, the PUSCH (Physical of (Intra-subframe) in traditional subframe
Uplink Shared Channel, Physical Uplink Shared Channel) jump (Hopping) can not be supported.And in PUSCH
The UCI (Uplink Control Information, ascending control information) of upper transmission, PUSCH jump can obtain volume in subframe
Outer frequency diversity gain reduces BLER (Block Error Rate, Block Error Rate).
For in short TTI scene, the UCI transmitted on PUSCH can not obtain this problem of frequency diversity gain, the present invention
Provide solution.
The invention discloses a kind of methods in UE for supporting low latitude mouthful delay, which comprises the steps of:
Step A. receives the first signaling, and resource scheduled in the first signaling includes the first PRB collection in the first LTE subframe
It closes, the first signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling first from K kind candidate mappings mode
The mode of resource impact in PRB set, the K are greater than 1 positive integer
Step B. sends the second signaling in the first LTE time slot
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data.The
One PRB set includes M PRB, and it includes at least one PRB, institute in the PRB subset that the M PRB, which forms G PRB subset,
Stating the PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain.
Second signaling occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information extremely
It is one of few:
- the first control information .HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat-request)-
ACK, the HARQ-ACK occupy L1 SC-FDMA (Single Carrier Frequency Multiple in time domain
Access, single-carrier frequency division multiple access) symbol, the L1 is no more than 7 positive integer
- the second control information .RI (Rank Indicator, order instruction), the RI occupy L2 SC-FDMA symbol in time domain
Number, the L2 is no more than 7 positive integer
Third controls information .CQI (Channel Quality Indicator, channel quality instruction) _ PMI
(Precoding Matrix Indicator, pre-coding matrix instruction), the CQI_PMI include { CQI, PMI } at least
One of, the CQI_PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
Compared to the UCI transmitted on PUSCH, the second signaling hair in a LTE time slot (rather than a LTE subframe)
It send, reduces and eat dishes without rice or wine to postpone.On the other hand, base station is existed by the first occupied frequency domain resource of the second signaling of signaling dynamic configuration
Distribution mode in first PRB set, obtains scheduling gains.Above-mentioned HARQ-ACK is used to indicate whether correct decoding downlink transfer
Block.
As one embodiment, the K is 2.
As one embodiment, the G is 1 or 2.
It is described to be used for transmission occupied by the physical layer channel of data for tradition (Legacy) UE as one embodiment
PRB be assigned to PUSCH.
As one embodiment, the physical layer channel for being used for transmission data reuses PUSCH in a LTE time slot
Channel architecture, the channel architecture include { SC-FDMA symbolic number, the generation of SC-FDMA symbol, DMRS (DeModulation
Reference Signal, demodulated reference signal) occupied SC-FDMA symbol quantity and position, DMRS sequence }.
As one embodiment, the physical layer channel for being used for transmission data reuses PUSCH in a LTE time slot
Channel basic structure, the channel basic structure includes { SC-FDMA symbolic number, the generation of SC-FDMA symbol }, described to be used for
The physical layer channel for transmitting data includes 2 SC-FDMA symbols for being used for transmission DMRS in the first LTE time slot.
As one embodiment, the quantity for the PRB that each PRB subset in the G PRB subset includes is identical.
As one embodiment, at least there are two PRB subsets in the G PRB subset, in described two PRB subsets
The quantity for the PRB for respectively including is different.
As one embodiment, resource scheduled in the first signaling further includes the first PRB set in the 2nd LTE subframe,
2nd LTE subframe and the first LTE subframe belong to the same LTE time slot.
As one embodiment, the first signaling is in PDCCH (Physical Downlink Control Channel, physics
Down control channel) on transmit.
As one embodiment, the first signaling is transmitted in a LTE subframe.
As one embodiment, the L1 is equal to the L2.
As one embodiment, the L3 is 7.
As one embodiment, the L3 is 6.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Step B1. in the first LTE time slot described in be used for transmission data physical layer channel on send the first data.
Wherein, the first signaling indicates the scheduling information of the first data.First data occupy the whole in the first PRB set
Or part PRB.
As one embodiment, the first data occupy all PRB in the first PRB set.
As one embodiment, the second signaling and the first data occupy all PRB in the first PRB set.
Specifically, according to an aspect of the present invention, which is characterized in that the K kind candidate mappings mode includes the first time
Select mapping mode and the second candidate mappings mode.First candidate mappings mode meets at least one of:
The control occupied subcarrier of information described in fisrt feature is continuously distributed in the first PRB set
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in second feature
On be arranged successively modulation symbol sequence and be arranged successively on the occupied subcarrier of the control information.
Second candidate mappings mode meets at least one of:
The control occupied subcarrier of information is discrete point in the subcarrier scheduled in the first signaling described in third feature
Cloth, subcarrier scheduled in first signaling includes the occupied subcarrier of the control information
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in fourth feature
Upper jump arrangement.
When the control information only takes up the portion subcarriers in the first PRB, second feature is one of fisrt feature
Embodiment, fourth feature are one embodiment of third feature.The subcarrier permutation sequence is the center frequency according to subcarrier
Rate from low to high, or from high to low.
As one embodiment, the corresponding modulation symbol sequence of the control information is by carrying the control information
Coding after (Coded) bit sequence by bit sequencing modulation generate.Wherein, a modulation symbol is by one or more
A bit modulation generates.
As one embodiment, the corresponding modulation symbol sequence of the control information is by target bits sequence by suitable
Sequence is sequentially modulated generation.Wherein, the target bits sequence is the bit of (Coded) after the coding by the carrying control information
Sequence generates after interweaving, and a modulation symbol is generated by one or more bit modulation.
In above-mentioned aspect, the first candidate mappings mode is more suitable closed loop scheduling (the i.e. channel shape that feeds back according to UE of base station
State information executes scheduling).Second candidate mappings mode be more suitable open loop scheduling (i.e. base station is not held according to channel state information
Row scheduling), the second candidate mappings mode can provide frequency diversity gain for the uplink of short TTI.
As one embodiment, the K is 2.
As one embodiment, the K is 2, and the first signaling utilizes frequency agility mark (Frequency hopping
Flag) bit indicates the first mapping mode from K kind candidate mappings mode.If the instruction jump of frequency agility flag bit, the
One mapping mode is the first candidate mappings mode；If the instruction of frequency agility flag bit is not jumped, the first mapping mode is the
Two candidate mappings modes.
As one embodiment, the K is 2, and the first signaling utilizes resource allocation type (Resource allocation
Type) bit indicates the first mapping mode from K kind candidate mappings mode.If resource allocation type bit indication resource allocation
Type 0, the first mapping mode are the first candidate mappings modes；If resource allocation type bit indication resource allocation type 1, the
One mapping mode is the second candidate mappings mode.
The advantages of above-mentioned two embodiment, is: using the first mapping mode of bit dynamic configuration in existing DCI, avoiding drawing
Enter new redundancy signaling.
Specifically, according to an aspect of the present invention, which is characterized in that for the first candidate mappings mode, the first control
Information and the second control corresponding modulation symbol sequence of information respectively according to the mode of { time domain first, frequency domain second }, from
Minimum subcarrier starts RE (Resource Element, resource particle) mapping (Mapping), and it is corresponding that third controls information
According to the mode of { time domain first, frequency domain second }, the RE since highest subcarrier maps modulation symbol sequence.It is described minimum
Subcarrier is the minimum subcarrier of the centre frequency in the first PRB set, and the highest subcarrier is in the first PRB set
Centre frequency highest subcarrier.
Specifically, according to an aspect of the present invention, which is characterized in that for the second candidate mappings mode, the control
Mapping order of the corresponding modulation symbol sequence of information on the subcarrier in PRB subset meets subcarrier permutation sequence.
Specifically, according to an aspect of the present invention, which is characterized in that for the second candidate mappings mode, the first control
Information and the second control corresponding modulation symbol sequence of information are respectively according to { time domain first, PRB subset second, frequency domain the
Three } mode, RE maps since minimum subcarrier, and third controls the corresponding modulation symbol sequence of information according to { time domain the
One, PRB subset second, frequency domain third } mode, since highest subcarrier RE map.The minimum subcarrier is
The minimum subcarrier of centre frequency in one PRB set, the highest subcarrier are the centre frequencies in the first PRB set
Highest subcarrier.
As one embodiment, the control information occupies whole PRB subsets in the G PRB subset.
As one embodiment, the control information occupies the part PRB subset in the G PRB subset.
As one embodiment, it is shared in any one PRB subset in the G PRB subset to give control information
RE number is more than or equal to Y1 and is less than or equal to Y2.The Y1 is positive integer, and the Y2 is the Y1 plus the given control
The SC-FDMA symbolic number that information occupies.The given control information is { the first control information, the second control information, third control
One of information }.
The invention discloses a kind of methods in base station for supporting low latitude mouthful delay, which comprises the steps of:
Step A. sends the first signaling, and resource scheduled in the first signaling includes the first PRB collection in the first LTE subframe
It closes, the first signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling first from K kind candidate mappings mode
The mode of resource impact in PRB set, the K are greater than 1 positive integer
Step B. receives the second signaling in the first LTE time slot
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data.The
One PRB set includes M PRB, and it includes at least one PRB, institute in the PRB subset that the M PRB, which forms G PRB subset,
Stating the PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain.
Second signaling occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information extremely
It is one of few:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
Specifically, according to an aspect of the present invention, which is characterized in that the step B further includes following steps:
Step B1. in the first LTE time slot described in be used for transmission data physical layer channel on receive the first data.
Wherein, the first signaling indicates the scheduling information of the first data.First data occupy the whole in the first PRB set
Or part PRB.
Specifically, according to an aspect of the present invention, which is characterized in that the K kind candidate mappings mode includes the first time
Select mapping mode and the second candidate mappings mode.First candidate mappings mode meets at least one of:
The control occupied subcarrier of information described in fisrt feature is continuously distributed in the first PRB set
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in second feature
On be arranged successively modulation symbol sequence and be arranged successively on the occupied subcarrier of the control information.
Second candidate mappings mode meets at least one of:
The control occupied subcarrier of information is discrete point in the subcarrier scheduled in the first signaling described in third feature
Cloth, subcarrier scheduled in first signaling includes the occupied subcarrier of the control information
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in fourth feature
Upper jump arrangement.
As one embodiment, the corresponding modulation symbol sequence of the control information is by carrying the control information
Coding after bit sequence by bit sequencing modulation generate.Wherein, a modulation symbol is by one or more bit
Modulation generates.
As one embodiment, the corresponding modulation symbol sequence of the control information is by target bits sequence by suitable
Sequence is sequentially modulated generation.Wherein, the target bits sequence is that the bit sequence after the coding by the carrying control information is handed over
It is generated after knitting, a modulation symbol is generated by one or more bit modulation.
Specifically, according to an aspect of the present invention, which is characterized in that for the first candidate mappings mode, the first control
Information and the second control corresponding modulation symbol sequence of information respectively according to the mode of { time domain first, frequency domain second }, from
Minimum subcarrier starts RE mapping, and third controls the corresponding modulation symbol sequence of information according to { time domain first, frequency domain second }
Mode since highest subcarrier RE map.The minimum subcarrier is that the centre frequency in the first PRB set is minimum
Subcarrier, the highest subcarrier be the first PRB set in centre frequency highest subcarrier.
Specifically, according to an aspect of the present invention, which is characterized in that for the second candidate mappings mode, the control
Mapping order of the corresponding modulation symbol sequence of information on the subcarrier in PRB subset meets subcarrier permutation sequence.
Specifically, according to an aspect of the present invention, which is characterized in that for the second candidate mappings mode, the first control
Information and the second control corresponding modulation symbol sequence of information are respectively according to { time domain first, PRB subset second, frequency domain the
Three } mode, RE maps since minimum subcarrier, and third controls the corresponding modulation symbol sequence of information according to { time domain the
One, PRB subset second, frequency domain third } mode, since highest subcarrier RE map.The minimum subcarrier is
The minimum subcarrier of centre frequency in one PRB set, the highest subcarrier are the centre frequencies in the first PRB set
Highest subcarrier.
The invention discloses a kind of user equipmenies for supporting low latitude mouthful delay, which is characterized in that the equipment includes:
First module: for receiving the first signaling, resource scheduled in the first signaling includes the in the first LTE subframe
One PRB set, the first signaling indicate the first mapping mode, the second letter of the first mapping mode instruction from K kind candidate mappings mode
The mode of the resource impact in the first PRB set is enabled, the K is greater than 1 positive integer
Second module: for sending the second signaling in the first LTE time slot
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data.The
One PRB set includes M PRB, and it includes at least one PRB, institute in the PRB subset that the M PRB, which forms G PRB subset,
Stating the PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain.
Second signaling occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information extremely
It is one of few:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
As one embodiment, the second module of above-mentioned user equipment be also used in the first LTE time slot described in be used for
It transmits and sends the first data in the physical layer channel of data.Wherein, the first signaling indicates the scheduling information of the first data.First number
According to all or part of PRB occupied in the first PRB set.
As one embodiment, above-mentioned user equipment is characterized in that, the K kind candidate mappings mode includes first candidate
Mapping mode and the second candidate mappings mode.First candidate mappings mode meets at least one of:
The control occupied subcarrier of information described in fisrt feature is continuously distributed in the first PRB set
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in second feature
On be arranged successively modulation symbol sequence and be arranged successively on the occupied subcarrier of the control information.
Second candidate mappings mode meets at least one of:
The control occupied subcarrier of information is discrete point in the subcarrier scheduled in the first signaling described in third feature
Cloth, subcarrier scheduled in first signaling includes the occupied subcarrier of the control information
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in fourth feature
Upper jump arrangement.
The invention discloses a kind of base station equipments for supporting low latitude mouthful delay, which is characterized in that the equipment includes:
First module: for sending the first signaling, resource scheduled in the first signaling includes the in the first LTE subframe
One PRB set, the first signaling indicate the first mapping mode, the second letter of the first mapping mode instruction from K kind candidate mappings mode
The mode of the resource impact in the first PRB set is enabled, the K is greater than 1 positive integer
Second module: for receiving the second signaling in the first LTE time slot
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data.The
One PRB set includes M PRB, and it includes at least one PRB, institute in the PRB subset that the M PRB, which forms G PRB subset,
Stating the PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain.
Second signaling occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information extremely
It is one of few:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
As one embodiment, the second module of above-mentioned base station equipment be also used in the first LTE time slot described in be used for
It transmits and receives the first data in the physical layer channel of data.Wherein, the first signaling indicates the scheduling information of the first data.First number
According to all or part of PRB occupied in the first PRB set.
As one embodiment, above-mentioned base station equipment is characterized in that, the K kind candidate mappings mode includes first candidate
Mapping mode and the second candidate mappings mode.First candidate mappings mode meets at least one of:
The control occupied subcarrier of information described in fisrt feature is continuously distributed in the first PRB set
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in second feature
On be arranged successively modulation symbol sequence and be arranged successively on the occupied subcarrier of the control information.
Second candidate mappings mode meets at least one of:
The control occupied subcarrier of information is discrete point in the subcarrier scheduled in the first signaling described in third feature
Cloth, subcarrier scheduled in first signaling includes the occupied subcarrier of the control information
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in fourth feature
Upper jump arrangement.
Compared to existing public technology, the present invention has following technical advantage:
- eats dishes without rice or wine to postpone using the short TTI reduction of uplink
- enables the UCI transmitted in the short TTI of uplink to obtain frequency diversity gain.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of uplink scheduling according to an embodiment of the invention；
Fig. 2 shows the schematic diagrames of the first candidate mappings mode according to an embodiment of the invention；
Fig. 3 shows the second candidate mappings mode according to an embodiment of the invention for being directed to two PRB subsets
Schematic diagram；
Fig. 4 shows the second candidate mappings mode according to an embodiment of the invention for being directed to three PRB subsets
Schematic diagram；
Fig. 5 shows the schematic diagram of the multiple LTE time slots of the first signaling scheduling according to an embodiment of the invention；
Fig. 6 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 7 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of uplink scheduling, as shown in Fig. 1.In attached drawing 1, base station N1 is the clothes of UE U2
The maintenance base station for cell of being engaged in, the step of identifying in box F1 are optional steps.
ForBase station N1, the first signaling is sent in step s 11.In step s 12 in the first LTE time slot described in
It is used for transmission in the physical layer channel of data and receives the first data.The second letter is received in the first LTE time slot in step S13
It enables.
ForUE U2, the first signaling is received in the step s 21.The use in step S22 in the first LTE time slot
In transmission data physical layer channel on send the first data.The second signaling is sent in the first LTE time slot in step S13.
In embodiment 1, resource scheduled in the first signaling includes the first PRB set in the first LTE subframe, the first letter
Order indicates that the first mapping mode, the first mapping mode indicate the second signaling in the first PRB set from K kind candidate mappings mode
Resource impact mode, the K is greater than 1 positive integer.First signaling indicates the scheduling information of the first data.First number
According to all or part of PRB occupied in the first PRB set.First signaling is physical layer signaling, and the second signaling is being used for transmission
It is transmitted in the physical layer channel of data.First PRB set includes M PRB, and the M PRB forms G PRB subset, described
It include at least one PRB in PRB subset, the PRB in the PRB subset is continuously that the G is positive integer, institute on frequency domain
State the positive integer that M is greater than or equal to G.Second signaling occupies all or part of PRB in the first PRB set, the second letter
Enable includes at least one of following three kinds of control information:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
As the sub- embodiment 1 of embodiment 1, LTE slot transmission of first signaling before the first LTE time slot.
As the sub- embodiment 2 of embodiment 1, the first signaling is the DCI for uplink scheduling (Uplink Grant)
(Downlink Control Information, Downlink Control Information).One son of the sub- embodiment 2 as embodiment 1 is real
Example is applied, the first signaling is DCI format 0.Another sub- embodiment of the sub- embodiment 2 as embodiment 1, the first signaling is DCI
Format 4.
As the sub- embodiment 3 of embodiment 1, the scheduling information of first data includes the { MCS of the first data
(Modulation Coding Status, modulation coding scheme), the PRB of occupancy }.
As the sub- embodiment 4 of embodiment 1, the K is 1 or 2.
As the sub- embodiment 5 of embodiment 1, third control information further includes the rope of (one or more) antenna port
Draw.The index of one sub- embodiment of the sub- embodiment 5 as embodiment 1, the antenna port is used for FD (Full
Dimension, Quan Weidu)-MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) communication.
Embodiment 2
Embodiment 2 illustrates the schematic diagram of the first candidate mappings mode, as shown in Fig. 2.In attached drawing 2, oblique line mark
Lattice is the RE for being used for transmission DMRS.In embodiment 2, the first PRB set includes M PRB, and corresponding index value is according to frequency
It is followed successively by from low to high #0 to # (M-1), the M PRB forms 1 PRB subset, includes M PRB, institute in the PRB subset
Stating the PRB in PRB subset is continuously that the M is positive integer on frequency domain.
(A to P), (a to v) and digital (0 to 31) identify three kinds of possibility to lowercase to capitalization in attached drawing 2 respectively
The first candidate mappings mode.Three kinds of possible first candidate mappings modes all meet following two feature:
The control occupied subcarrier of information described in fisrt feature is continuously distributed in the first PRB set.Fisrt feature
Equivalent description be: for the first PRB set in any one target sub-carriers, if the target sub-carriers is { higher
Subcarrier, lower subcarrier } (at least one RE) is all occupied by the control information, the target sub-carriers are also inevitable described
It controls information and occupies (at least one RE).The higher subcarrier is the minimum son of the centre frequency in the first t easet ofasubcarriers
Carrier wave, the high institute of the centre frequency of the first t easet ofasubcarriers target sub-carriers as described in the center frequency ratio in the first PRB set
It is made of subcarrier.The lower subcarrier is the highest subcarrier of centre frequency in the second t easet ofasubcarriers, and the second son carries
All subcarriers that the centre frequency of wave set target sub-carriers described in the center frequency ratio in the first PRB set is low form.
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in second feature
On be arranged successively modulation symbol sequence and be arranged successively on the occupied subcarrier of the control information.The equivalence of second feature is retouched
Stating is: for any first modulation symbol and any second modulation symbol in the modulation symbol sequence, in subcarrier #1
Frequency of heart is not less than the centre frequency of subcarrier #2；Or in the modulation symbol sequence any first modulation symbol and
Any second modulation symbol, the centre frequency of subcarrier #1 are not higher than the centre frequency of subcarrier #2.Wherein, the first modulation symbol
A RE being mapped on subcarrier #1, the second modulation symbol are mapped to a RE on subcarrier #2, the first modulation symbol
Modulation symbol before number being the second modulation symbol in the modulation symbol sequence.
As the sub- embodiment 1 of the embodiment 2, the second signaling includes the first control information, controls information for first,
First candidate mappings mode is as shown in the capitalization in attached drawing 2, and the corresponding modulation symbol sequence of the first control information is in order
It is sequentially mapped on the RE that { A, B ..., P } is identified, i.e., according to the mode of { time domain first, frequency domain second }, from minimum son
Carrier wave starts RE mapping.The minimum subcarrier is that the minimum subcarrier-of the centre frequency in the first PRB set is located at (II)
In the PRB#0 of mark.
As the sub- embodiment 2 of the embodiment 2, the second signaling includes the second control information, controls information for second,
First candidate mappings mode is as shown in the lowercase in attached drawing 2, and the corresponding modulation symbol sequence of the second control information is in order
It is sequentially mapped on the RE that { a, b ..., v } is identified, i.e., according to the mode of { time domain first, frequency domain second }, from minimum son
Carrier wave starts RE mapping.The minimum subcarrier is that the minimum subcarrier-of the centre frequency in the first PRB set is located at (II)
In the PRB#0 of mark.
As the sub- embodiment 3 of embodiment 2, the second signaling include third control information, for third control information, first
As shown in the number in attached drawing 2, the corresponding modulation symbol sequence of third control information successively maps candidate mappings mode in order
On the RE identified to { 0,1 ..., 31 }, i.e., according to the mode of { time domain first, frequency domain second }, since highest subcarrier
RE mapping.The highest subcarrier is that the centre frequency highest subcarrier-in the first PRB set is located at the PRB# that (I) is identified
(M-1) in.
As the sub- embodiment 4 of embodiment 2, the corresponding modulation symbol sequence of the control information is as described in carrying
Bit sequence after controlling the coding of information is generated by the modulation of bit sequencing.Wherein, (according to the modulation of the control information
Mode) modulation symbol generate by one or more bit modulation.
Embodiment 3
Embodiment 3 illustrates the schematic diagram of the second candidate mappings mode for two PRB subsets, as shown in Fig. 3.It is attached
In Fig. 3, the grid of oblique line mark is the RE for being used for transmission DMRS.In embodiment 3, the first PRB set includes M PRB, the M
A PRB forms 2 the-the one PRB subsets of PRB subset and the 2nd PRB subset, and the index value of the PRB in the first PRB subset is according to frequency
Rate is followed successively by #0 to # (M1-1) from low to high, and the index value of the PRB in the 2nd PRB subset is followed successively by # according to frequency from low to high
M1 to # (M-1).PRB in the PRB subset is continuously that the M1 is positive integer on frequency domain, and the M is greater than described
The positive integer of M1.
(A to P), (a to v) and digital (0 to 31) identify three kinds of possibility to lowercase to capitalization in attached drawing 3 respectively
The second candidate mappings mode.Three kinds of possible second candidate mappings modes all meet following three features:
The control occupied subcarrier of information is discrete point in the subcarrier scheduled in the first signaling described in third feature
Cloth, subcarrier scheduled in first signaling includes the occupied subcarrier of the control information.Third feature is and first
The feature of feature complementary.
The corresponding modulation symbol sequence of control information is in the occupied subcarrier of the control information described in fourth feature
Upper jump arrangement.Fourth feature is the feature with second feature complementation.
Mapping of the corresponding modulation symbol sequence of control information on the subcarrier in PRB subset described in fifth feature is suitable
Sequence meets subcarrier permutation sequence.The equivalent description of fifth feature is: same for being mapped in the modulation symbol sequence
The centre frequency of any first modulation symbol and any second modulation symbol in a PRB subset, subcarrier #1 is carried not less than son
The centre frequency of wave #2；Or any first be mapped in the same PRB subset in the modulation symbol sequence is adjusted
Symbol processed and any second modulation symbol, the centre frequency of subcarrier #1 are not higher than the centre frequency of subcarrier #2.Wherein,
One modulation symbol is mapped to a RE on the subcarrier #1 in given PRB subset, and the second modulation symbol is mapped to described
A RE on subcarrier #2 in given PRB subset, the first modulation symbol is the second modulation in the modulation symbol sequence
Modulation symbol before symbol.
As the sub- embodiment 1 of the embodiment 3, the second signaling includes the first control information, controls information for first,
First candidate mappings mode is as shown in the capitalization in attached drawing 3, and the corresponding modulation symbol sequence of the first control information is in order
On the RE that { A, B ..., the P } being sequentially mapped in attached drawing 3 is identified, i.e., according to { time domain first, PRB subset second, frequency domain
Three } mode, RE maps since minimum subcarrier, and the minimum subcarrier is the centre frequency in the first PRB set
Minimum subcarrier.First control information be distributed in PRB#0 and PRB#M1 two each other on discontinuous PRB-respectively by (IV)
(II) mark.
As the sub- embodiment 2 of the embodiment 3, the second signaling includes the second control information, controls information for second,
First candidate mappings mode is as shown in the lowercase in attached drawing 3, and the corresponding modulation symbol sequence of the second control information is in order
On the RE that { a, b ..., the v } being sequentially mapped in attached drawing 3 is identified, i.e., according to { time domain first, PRB subset second, frequency domain
Three } mode, RE maps since minimum subcarrier, and the minimum subcarrier is the centre frequency in the first PRB set
Minimum subcarrier.Second control information be distributed in PRB#0 and PRB#M1 two each other on discontinuous PRB-respectively by (IV)
(II) mark.
As the sub- embodiment 3 of the embodiment 3, the second signaling includes third control information, controls information for third,
For first candidate mappings mode as shown in the number in attached drawing 3, second controls the corresponding modulation symbol sequence of information in order successively
On the RE that { 0,1 ..., 31 } being mapped in attached drawing 3 are identified, i.e., according to { time domain first, PRB subset second, frequency domain third }
Mode, since highest subcarrier RE map, the highest subcarrier be the first PRB set in centre frequency highest
Subcarrier.Second control information be distributed in PRB# (M-1) and PRB# (M1-1) two each other on discontinuous PRB-respectively by (I)
(III) mark.
As the sub- embodiment 4 of embodiment 3, the corresponding modulation symbol sequence of the control information is as described in carrying
Bit sequence after controlling the coding of information is generated by the modulation of bit sequencing.Wherein, (according to the modulation of the control information
Mode) modulation symbol generate by one or more bit modulation.
Embodiment 4
Embodiment 4 illustrates the schematic diagram of the second candidate mappings mode for three PRB subsets, as shown in Fig. 4.It is attached
In Fig. 4, the grid of oblique line mark is the RE for being used for transmission DMRS, and the first PRB set includes M PRB, the M PRB composition 3
A the 2nd PRB subset of the-the one PRB subset of PRB subset and the 3rd PRB subset.The index value of PRB in first PRB subset according to
Frequency is followed successively by #0 to # (M1-1) from low to high, the index value of the PRB in the 2nd PRB subset according to frequency from low to high successively
For #M1 to # (M2+M1-1), the index value of the PRB in the 3rd PRB subset is followed successively by # (M1+M2) to # according to frequency from low to high
(M-1).PRB in the PRB subset is continuously that the M1 is positive integer, and the M2 is positive integer, the M on frequency domain
It is greater than the positive integer of (M1+M2).
Number (0 to 33) in attached drawing 4 identifies the second candidate mappings mode.Second candidate mappings mode all meets the present invention
In third feature, fourth feature and fifth feature.
In embodiment 4, the corresponding modulation symbol sequence of control information be sequentially mapped in order in attached drawing 40,
1 ..., 33 } on the RE identified.In PRB intra-subset according to the mode of { time domain first, frequency domain second }, out of PRB subset most
High subcarrier starts RE mapping, and the highest subcarrier is centre frequency highest subcarrier.Control information is distributed in PRB#
(M-1), PRB# (M2+M1-1) and PRB# (M1-1) three each other on discontinuous PRB-respectively by (I), (II) and (III)
Mark.
Embodiment 5
Embodiment 5 illustrates the schematic diagram of the multiple LTE time slots of the first signaling scheduling, as shown in Fig. 5.
Embodiment 5, the transmission of data of first signaling scheduling in N number of LTE time slot, the first signaling are transmitted on PDCCH.
N number of LTE time slot includes the first time slot and the second time slot in LTE subframe (respectively as shown in arrow A7 and A8).First LTE
Time slot is one in N number of LTE time slot.
As the sub- embodiment 1 of embodiment 5, N number of LTE time slot further includes cross-subframe LTE time slot (such as dotted line arrow
Shown in head A9).
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit in a UE, as shown in Fig. 6.In attached drawing 6, UE processing
Device 200 is mainly made of receiving module 201 and sending module 202.
For receiving module 201 for receiving the first signaling, resource scheduled in the first signaling includes in the first LTE subframe
First PRB set, the first signaling indicate the first mapping mode, the first mapping mode instruction second from K kind candidate mappings mode
The mode of resource impact of the signaling in the first PRB set, the K are greater than 1 positive integer.Sending module 202 is used for the
Described be used for transmission in the physical layer channel of data in one LTE time slot sends the second signaling and the first data.
In embodiment 6, the first signaling is physical layer signaling, and the first signaling indicates the scheduling information of the first data.First number
According to all or part of PRB occupied in the first PRB set.First PRB set includes M PRB, and described M PRB composition G
PRB subset, includes at least one PRB in the PRB subset, and the PRB in the PRB subset is continuous, the G on frequency domain
It is positive integer, the M is greater than or equal to the positive integer of G.Second signaling occupies whole or portion in the first PRB set
Divide PRB, the second signaling includes at least one of following three kinds of control information:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
As the sub- embodiment 1 of embodiment 6, the K is 2, and the K kind candidate mappings mode includes the first candidate mappings side
Formula and the second candidate mappings mode.For the first candidate mappings mode, the first control information and the second control information are respectively corresponded to
Modulation symbol sequence respectively according to the mode of { time domain first, frequency domain second }, RE maps since minimum subcarrier, third
Controlling the corresponding modulation symbol sequence of information, the RE since highest subcarrier reflects according to the mode of { time domain first, frequency domain second }
It penetrates.The minimum subcarrier is the minimum subcarrier of centre frequency in the first PRB set, and the highest subcarrier is the
Centre frequency highest subcarrier in one PRB set.For the second candidate mappings mode, the first control information and the second control letter
Corresponding modulation symbol sequence is ceased respectively according to the mode of { time domain first, PRB subset second, frequency domain third }, from minimum
Subcarrier start RE mapping, third controls the corresponding modulation symbol sequence of information according to { time domain first, PRB subset second, frequency
Domain third } mode, since highest subcarrier RE map.The minimum subcarrier is the center in the first PRB set
The minimum subcarrier of frequency, the highest subcarrier are the centre frequency highest subcarriers in the first PRB set.The modulation
Symbol sebolic addressing is that the bit sequence after the coding by the corresponding control information of carrying modulates generation by bit sequencing.
As the sub- embodiment 2 of embodiment 6, the L3 is to be used for transmission the first data in the first LTE time slot (to remove
DMRS and possible SRS) SC-FDMA symbolic number.
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 7.In attached drawing 7, base station
Processing unit 300 is mainly made of sending module 301 and receiving module 302.
For sending module 301 for sending the first signaling, resource scheduled in the first signaling includes in the first LTE subframe
First PRB set, the first signaling indicate the first mapping mode, the first mapping mode instruction second from K kind candidate mappings mode
The mode of resource impact of the signaling in the first PRB set, the K are greater than 1 positive integer.Receiving module 302 is used for the
Described be used for transmission in the physical layer channel of data in one LTE time slot receives the second signaling and the first data.
In embodiment 7, the first signaling is physical layer signaling, and the first signaling indicates the scheduling information of the first data.First number
According to all or part of PRB occupied in the first PRB set.First PRB set includes M PRB, and described M PRB composition G
PRB subset, includes at least one PRB in the PRB subset, and the PRB in the PRB subset is continuous, the G on frequency domain
It is positive integer, the M is greater than or equal to the positive integer of G.Second signaling occupies whole or portion in the first PRB set
Divide PRB, the second signaling includes at least one of following three kinds of control information:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol, the L1 in time domain
It is no more than 7 positive integer
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is being no more than 7 just
Integer
Third controls information .CQI_PMI, and the CQI_PMI includes at least one of { CQI, PMI }, the CQI_
PMI occupies L3 SC-FDMA symbol in time domain, and the L3 is no more than 7 positive integer.
As the sub- embodiment 1 of embodiment 7, the G is 1 or 2.
As the sub- embodiment 2 of embodiment 7, the first signaling is DCI format 0 or the first signaling is DCI format 4.
As the sub- embodiment 3 of embodiment 7, the first data occupy the part SC-FDMA symbol in the first LTE time slot, i.e.,
The duration of first data is less than 0.5ms.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware is enabled to complete, described program can store in computer readable storage medium, such as read-only memory, hard disk or light
Disk etc..Optionally, one or more integrated circuit can be used also to realize in all or part of the steps of above-described embodiment.Phase
It answers, each modular unit in above-described embodiment, can be realized using example, in hardware, it can also be by the form of software function module
It realizes, the application is not limited to the combination of the software and hardware of any particular form.UE or mobile terminal in the present invention include
But it is not limited to mobile phone, tablet computer, notebook, card of surfing Internet, vehicular communication equipment, the wireless telecom equipments such as wireless sensor.This
Base station in invention includes but is not limited to macrocell base stations, microcell base station, Home eNodeB, and the wireless communications such as relay base station are set
It is standby.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (24)
1. a kind of method in user equipment for supporting low latitude mouthful delay, which comprises the steps of:
Step A. receives the first signaling, and resource scheduled in the first signaling includes the first PRB set in the first LTE subframe, the
One signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling in the first PRB collection from K kind candidate mappings mode
The mode of resource impact in conjunction, the K are greater than 1 positive integer；
Step B. sends the second signaling in the first LTE time slot；
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data；First
PRB set includes M PRB, and it includes at least one PRB in the PRB subset that the M PRB, which forms G PRB subset, described
PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain；The
Two signalings occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information at least
One of:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol in time domain, and the L1 is little
In 7 positive integer；
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is no more than 7 positive integer；
Third controls information .CQI_PMI, and the CQI_PMI includes channel quality instruction or pre-coding matrix instruction or channel
Quality instruction and pre-coding matrix instruction, the CQI_PMI occupy L3 SC-FDMA symbol in time domain, and the L3 is little
In 7 positive integer.
2. the method according to claim 1, wherein the step B further includes following steps:
Step B1. in the first LTE time slot described in be used for transmission data physical layer channel on send the first data；
Wherein, the first signaling indicates the scheduling information of the first data；First data occupy whole or portion in the first PRB set
Divide PRB.
3. the method according to claim 1, wherein the K kind candidate mappings mode includes the first candidate mappings
Mode and the second candidate mappings mode；First candidate mappings mode meets at least one of:
The occupied subcarrier of control information included by second signaling described in fisrt feature continuously divides in the first PRB set
Cloth；
The corresponding modulation symbol sequence of control information included by second signaling described in second feature is in the second signaling institute
Including the occupied subcarrier of control information on be arranged successively；
Second candidate mappings mode meets at least one of:
The occupied subcarrier of control information son scheduled in the first signaling included by second signaling described in third feature
Discrete distribution in carrier wave, subcarrier scheduled in first signaling includes shared by control information included by second signaling
Subcarrier；
The corresponding modulation symbol sequence of control information included by second signaling described in fourth feature is in the second signaling institute
Including the occupied subcarrier of control information on jump arrangement.
4. according to the method described in claim 3, it is characterized in that, for the first candidate mappings mode, the first control information and
RE maps the second control corresponding modulation symbol sequence of information since minimum subcarrier respectively, and third controls information pair
The modulation symbol sequence answered RE since highest subcarrier maps；The minimum subcarrier be the first PRB set in
The minimum subcarrier of frequency of heart, the highest subcarrier are the centre frequency highest subcarriers in the first PRB set.
5. according to the method described in claim 3, it is characterized in that, for the second candidate mappings mode, the second signaling institute
Including mapping order of the corresponding modulation symbol sequence of control information on the subcarrier in PRB subset meet PRB
Subcarrier in collection puts in order.
6. the method according to any claim in claim 3 or 5, which is characterized in that for the second candidate mappings side
RE reflects since minimum subcarrier respectively for formula, the first control information and the second control corresponding modulation symbol sequence of information
It penetrates, third controls the corresponding modulation symbol sequence of information RE since highest subcarrier and maps；The minimum subcarrier is
The minimum subcarrier of centre frequency in first PRB set, the highest subcarrier are the centre frequencies in the first PRB set
Highest subcarrier.
7. a kind of method in base station for supporting low latitude mouthful delay, which comprises the steps of:
Step A. sends the first signaling, and resource scheduled in the first signaling includes the first PRB set in the first LTE subframe, the
One signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling in the first PRB collection from K kind candidate mappings mode
The mode of resource impact in conjunction, the K are greater than 1 positive integer；
Step B. receives the second signaling in the first LTE time slot；
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data；First
PRB set includes M PRB, and it includes at least one PRB in the PRB subset that the M PRB, which forms G PRB subset, described
PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain；The
Two signalings occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information at least
One of:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol in time domain, and the L1 is little
In 7 positive integer；
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is no more than 7 positive integer；
Third controls information .CQI_PMI, and the CQI_PMI includes channel quality instruction or pre-coding matrix instruction or channel
Quality instruction and pre-coding matrix instruction, the CQI_PMI occupy L3 SC-FDMA symbol in time domain, and the L3 is little
In 7 positive integer.
8. the method according to the description of claim 7 is characterized in that the step B further includes following steps:
Step B1. in the first LTE time slot described in be used for transmission data physical layer channel on receive the first data；
Wherein, the first signaling indicates the scheduling information of the first data；First data occupy whole or portion in the first PRB set
Divide PRB.
9. the method according to the description of claim 7 is characterized in that the K kind candidate mappings mode includes the first candidate mappings
Mode and the second candidate mappings mode；First candidate mappings mode meets at least one of:
The occupied subcarrier of control information included by second signaling described in fisrt feature continuously divides in the first PRB set
Cloth；
The corresponding modulation symbol sequence of control information included by second signaling described in second feature is in the second signaling institute
Including the occupied subcarrier of control information on be arranged successively；
Second candidate mappings mode meets at least one of:
The occupied subcarrier of control information son scheduled in the first signaling included by second signaling described in third feature
Discrete distribution in carrier wave, subcarrier scheduled in first signaling includes shared by control information included by second signaling
Subcarrier；
The corresponding modulation symbol sequence of control information included by second signaling described in fourth feature is in the second signaling institute
Including the occupied subcarrier of control information on jump arrangement.
10. according to the method described in claim 9, it is characterized in that, for the first candidate mappings mode, the first control information and
RE maps the second control corresponding modulation symbol sequence of information since minimum subcarrier respectively, and third controls information pair
The modulation symbol sequence answered RE since highest subcarrier maps；The minimum subcarrier be the first PRB set in
The minimum subcarrier of frequency of heart, the highest subcarrier are the centre frequency highest subcarriers in the first PRB set.
11. according to the method described in claim 9, it is characterized in that, for the second candidate mappings mode, the second signaling institute
Including mapping order of the corresponding modulation symbol sequence of control information on the subcarrier in PRB subset meet PRB
Subcarrier in collection puts in order.
12. the method according to claim 9 or 11, which is characterized in that for the second candidate mappings mode, the first control letter
RE maps since minimum subcarrier respectively for breath and the second control corresponding modulation symbol sequence of information, third control letter
Corresponding modulation symbol sequence RE since highest subcarrier is ceased to map；The minimum subcarrier is in the first PRB set
The minimum subcarrier of centre frequency, the highest subcarrier is the centre frequency highest subcarrier in the first PRB set.
13. a kind of user equipment for supporting low latitude mouthful delay, which is characterized in that the equipment includes:
First module: receiving the first signaling, and resource scheduled in the first signaling includes the first PRB set in the first LTE subframe,
First signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling in the first PRB from K kind candidate mappings mode
The mode of resource impact in set, the K are greater than 1 positive integer；
Second module: the second signaling is sent in the first LTE time slot；
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data；First
PRB set includes M PRB, and it includes at least one PRB in the PRB subset that the M PRB, which forms G PRB subset, described
PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain；The
Two signalings occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information at least
One of:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol in time domain, and the L1 is little
In 7 positive integer；
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is no more than 7 positive integer；
Third controls information .CQI_PMI, and the CQI_PMI includes channel quality instruction or pre-coding matrix instruction or channel
Quality instruction and pre-coding matrix instruction, the CQI_PMI occupy L3 SC-FDMA symbol in time domain, and the L3 is little
In 7 positive integer.
14. the user equipment according to claim 13 for supporting low latitude mouthful delay, which is characterized in that the K kind candidate is reflected
Penetrating mode includes the first candidate mappings mode and the second candidate mappings mode；First candidate mappings mode meet it is following at least it
One:
The occupied subcarrier of control information included by second signaling described in fisrt feature continuously divides in the first PRB set
Cloth；
The corresponding modulation symbol sequence of control information included by second signaling described in second feature is in the second signaling institute
Including the occupied subcarrier of control information on be arranged successively；
Second candidate mappings mode meets at least one of:
The occupied subcarrier of control information son scheduled in the first signaling included by second signaling described in third feature
Discrete distribution in carrier wave, subcarrier scheduled in first signaling includes shared by control information included by second signaling
Subcarrier；
The corresponding modulation symbol sequence of control information included by second signaling described in fourth feature is in the second signaling institute
Including the occupied subcarrier of control information on jump arrangement.
15. the user equipment according to claim 13 for supporting low latitude mouthful delay, which is characterized in that second module is also
The first data are sent in the physical layer channel for being used for transmission data described in the first LTE time slot；
Wherein, the first signaling indicates the scheduling information of the first data；First data occupy whole or portion in the first PRB set
Divide PRB.
16. the user equipment according to claim 14 for supporting low latitude mouthful delay, which is characterized in that the first candidate is reflected
Penetrate mode, the first control information and the second control corresponding modulation symbol sequence of information are respectively since minimum subcarrier
RE mapping, third control the corresponding modulation symbol sequence of information RE since highest subcarrier and map；The minimum son carries
Wave is the minimum subcarrier of the centre frequency in the first PRB set, and the highest subcarrier is the center in the first PRB set
Frequency highest subcarrier.
17. the user equipment according to claim 14 for supporting low latitude mouthful delay, which is characterized in that the second candidate is reflected
Mode is penetrated, the corresponding modulation symbol sequence of control information is on the subcarrier in PRB subset included by second signaling
Mapping order meets putting in order for the subcarrier in the PRB subset.
18. according to claim 1 in 4 or 17 support low latitude described in any claim mouthful delay user equipment, feature
It is, for the second candidate mappings mode, the first control information and the second control corresponding modulation symbol sequence of information point
RE maps not since minimum subcarrier, and third controls the corresponding modulation symbol sequence RE since highest subcarrier of information
Mapping；The minimum subcarrier is the minimum subcarrier of the centre frequency in the first PRB set, and the highest subcarrier is
Centre frequency highest subcarrier in first PRB set.
19. a kind of base station equipment for supporting low latitude mouthful delay, which is characterized in that the equipment includes:
First module: sending the first signaling, and resource scheduled in the first signaling includes the first PRB set in the first LTE subframe,
First signaling indicates that the first mapping mode, the first mapping mode indicate the second signaling in the first PRB from K kind candidate mappings mode
The mode of resource impact in set, the K are greater than 1 positive integer；
Second module: the second signaling is received in the first LTE time slot；
Wherein, the first signaling is physical layer signaling, and the second signaling is transmitted in the physical layer channel for be used for transmission data；First
PRB set includes M PRB, and it includes at least one PRB in the PRB subset that the M PRB, which forms G PRB subset, described
PRB in PRB subset is continuously that the G is positive integer, and the M is greater than or equal to the positive integer of G on frequency domain；The
Two signalings occupy the first PRB set in all or part of PRB, the second signaling include in following three kinds of control information at least
One of:
- the first control information .HARQ-ACK, the HARQ-ACK occupies L1 SC-FDMA symbol in time domain, and the L1 is little
In 7 positive integer；
- the second control information .RI, the RI occupies L2 SC-FDMA symbol in time domain, and the L2 is no more than 7 positive integer；
Third controls information .CQI_PMI, and the CQI_PMI includes channel quality instruction or pre-coding matrix instruction or channel
Quality instruction and pre-coding matrix instruction, the CQI_PMI occupy L3 SC-FDMA symbol in time domain, and the L3 is little
In 7 positive integer.
20. the base station equipment according to claim 19 for supporting low latitude mouthful delay, which is characterized in that second module is also
The first data are received in the physical layer channel for being used for transmission data described in the first LTE time slot；
Wherein, the first signaling indicates the scheduling information of the first data；First data occupy whole or portion in the first PRB set
Divide PRB.
21. the base station equipment according to claim 19 for supporting low latitude mouthful delay, which is characterized in that the K kind candidate is reflected
Penetrating mode includes the first candidate mappings mode and the second candidate mappings mode；First candidate mappings mode meet it is following at least it
One:
The occupied subcarrier of control information included by second signaling described in fisrt feature continuously divides in the first PRB set
Cloth；
The corresponding modulation symbol sequence of control information included by second signaling described in second feature is in the second signaling institute
Including the occupied subcarrier of control information on be arranged successively；
Second candidate mappings mode meets at least one of:
The occupied subcarrier of control information son scheduled in the first signaling included by second signaling described in third feature
Discrete distribution in carrier wave, subcarrier scheduled in first signaling includes shared by control information included by second signaling
Subcarrier；
The corresponding modulation symbol sequence of control information included by second signaling described in fourth feature is in the second signaling institute
Including the occupied subcarrier of control information on jump arrangement.
22. the base station equipment according to claim 21 for supporting low latitude mouthful delay, which is characterized in that the first candidate is reflected
Penetrate mode, the first control information and the second control corresponding modulation symbol sequence of information are respectively since minimum subcarrier
RE mapping, third control the corresponding modulation symbol sequence of information RE since highest subcarrier and map；The minimum son carries
Wave is the minimum subcarrier of the centre frequency in the first PRB set, and the highest subcarrier is the center in the first PRB set
Frequency highest subcarrier.
23. the base station equipment according to claim 21 for supporting low latitude mouthful delay, which is characterized in that the second candidate is reflected
Mode is penetrated, the corresponding modulation symbol sequence of control information is on the subcarrier in PRB subset included by second signaling
Mapping order meets putting in order for the subcarrier in the PRB subset.
24. the base station equipment of the support low latitude according to claim 21 or 23 mouthful delay, which is characterized in that waited for second
Mapping mode is selected, the first control information and the second control corresponding modulation symbol sequence of information are respectively from minimum subcarrier
Start RE mapping, third controls the corresponding modulation symbol sequence of information RE since highest subcarrier and maps；It is described minimum
Subcarrier is the minimum subcarrier of the centre frequency in the first PRB set, and the highest subcarrier is in the first PRB set
Centre frequency highest subcarrier.
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| CN201510628707.1A CN106559202B (en) | 2015-09-29 | 2015-09-29 | A kind of method, user equipment and base station equipment for supporting low latitude mouthful delay |
| PCT/CN2016/098270 WO2017054625A1 (en) | 2015-09-29 | 2016-09-07 | Method and device in ue and base station for supporting low air interface delay |
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| CN111447688B (en) * | 2017-07-08 | 2023-04-07 | 上海琦予通信科技服务中心 | Method and device used in user equipment and base station for dynamic scheduling |
| CN109391446A (en) * | 2017-08-11 | 2019-02-26 | 华为技术有限公司 | A kind of method and apparatus sending signal |
| CN109429315B (en) * | 2017-08-28 | 2020-06-30 | 上海朗帛通信技术有限公司 | Method and device used in user and base station for saving power |
| CN112073104B (en) * | 2017-09-08 | 2021-11-19 | 北京紫光展锐通信技术有限公司 | Uplink diversity transmission method, device and user equipment |
| CN111478758B (en) * | 2017-11-06 | 2022-03-29 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN117979446A (en) * | 2018-01-12 | 2024-05-03 | 华为技术有限公司 | Communication method, communication device, computer-readable storage medium, and computer program product |
| CN110248411B (en) * | 2018-03-07 | 2021-03-26 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN116321512A (en) * | 2018-03-22 | 2023-06-23 | 上海朗帛通信技术有限公司 | User equipment, method and device in base station for wireless communication |
| WO2019213969A1 (en) * | 2018-05-11 | 2019-11-14 | 富士通株式会社 | Resource determination method, device therefor, and communications system |
| CN115623594A (en) | 2019-09-06 | 2023-01-17 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN113285786B (en) * | 2020-02-19 | 2022-07-29 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
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