CN106550445A - A kind of method and apparatus of the low latency in radio communication - Google Patents
A kind of method and apparatus of the low latency in radio communication Download PDFInfo
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- CN106550445A CN106550445A CN201510600989.4A CN201510600989A CN106550445A CN 106550445 A CN106550445 A CN 106550445A CN 201510600989 A CN201510600989 A CN 201510600989A CN 106550445 A CN106550445 A CN 106550445A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of method and apparatus of the low latency in radio communication.Used as one embodiment, UE receives the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling in step one；N number of transmission block group is received in step 2, N number of transmission block group is sent in N number of LTE time slots respectively；Send N number of up signaling in step 3 in N number of child resource group respectively, N number of up signaling indicates respectively whether the transmission block in N number of transmission block group is correctly received.Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block group includes G transmission block, and the G is positive integer.One child resource group includes J child resource, and the form of a child resource is part of the PUCCH format { 1,1a, 1b } in a LTE time slot, and the J is 1 or 2.The present invention can reduce network delay, while keeping the compatibility with existing LTE equipment as far as possible.
Description
Technical field
The present invention relates to the transmission plan in wireless communication system, more particularly to based on Long Term Evolution
The method and apparatus of the low latency transmission of (LTE-Long Term Evolution).
Background technology
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program)
In RAN (Radio Access Network, wireless access network) #63 plenary session, LTE is reduced
The delay of network this problem comes into question.The delay of LTE network includes eating dishes without rice or wine to postpone, signal transacting
Time delay, the transmission delay between node etc..With the upgrading of wireless access network and core net, transmit
Time delay is can be effectively reduced.With the application of the new semiconductor for possessing higher height reason speed, signal
Process time delay to be significantly reduced.
In LTE, TTI (Transmission Time Interval, Transmission Time Interval) or
Subframe or PRB (Physical Resource Block) correspond to one in time to (Pair)
Individual ms (milli-second, millisecond).One LTE subframe includes two time slots (Time Slot)
- it is the first time slot and the second time slot respectively.PDCCH(Physical Downlink Control
Channel, Physical Downlink Control Channel) take the front R OFDM (Orthogonal of PRB couple
Frequency Division Multiplexing, OFDM) symbol, the R is
Positive integer less than 4, the R is by PCFICH (Physical Control Format
Indicator Channel, Physical Control Format Indicator Channel) configuration.For FDD (Frequency
Division Duplex, FDD) LTE, HARQ (Hybrid Automatic Repeat
ReQuest, hybrid automatic repeat-request) the winding time is 8ms, a small amount of HARQ is retransmitted band
Carry out the network delay of tens of ms.Therefore reduce eating dishes without rice or wine to postpone to become to reduce having for LTE network time delay
Effect means.
For there are problems that in LTE it is longer eat dishes without rice or wine to postpone this, the invention provides solution.
It should be noted that in the case where not conflicting, UE (User Equipment, the user of the application
Equipment) in embodiment and embodiment in feature may apply in base station, vice versa.Enter one
Step, in the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combine.
The content of the invention
Postpone to reduce eating dishes without rice or wine, one intuitively method be using short TTI, such as 0.5ms
TTI.Inventor has found that by studying the length of TTI is a factor for eating dishes without rice or wine to postpone,
The time delay brought up to the upstream physical layer control signaling of 1ms is also significantly affected eats dishes without rice or wine to postpone.Enter
One step, the scheme of new control signaling should existing LTE equipment as compatible as possible.
The present invention provides solution for the problems referred to above.
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, the transmission of the N number of transmission block group of the first signaling scheduling
- step B. receives N number of transmission block group, and N number of transmission block group is respectively in N number of LTE
Time slot sends
- step C. sends N number of up signaling, N number of sub- money in N number of child resource group respectively
Source group is located at N number of follow-up LTE time slots respectively, and N number of up signaling indicates respectively described N number of
Whether the transmission block in transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
In said method, up signaling is sent in a LTE time slot, is reduced and is eated dishes without rice or wine to postpone.
On the other hand, base station is the suitable frequency of the up signaling dynamic select according to parameters such as channel qualities
Domain resource, reduces BLER (Blocking Error Rate, Block Error Rate).Additionally, reducing the
PRB quantity included by one frequency domain position can be (under conditions of given maximum uplink transmission power)
Improve up coverage.
Another advantage of above-mentioned aspect is, in N number of LTE time slots, the up signaling
May be with existing LTE PUCCH formats (such as the first form and the second form) in a PRB
In coexist, i.e., the shared PRB of described up signaling and LTE PUCCH resources improves efficiency of transmission.
In the present invention, PUCCH resource is the PUCCH Resource in LTE.Detailed definition ginseng
Examine the definition of the PUCCH resource in TS36.213 and TS36.211.
As one embodiment, N number of child resource group institute in each described follow-up LTE time slot
(one or more) PRB for taking is identical.
Many (being more than 1) individual PRB as one embodiment, shared by a child resource group
It is continuous on frequency domain.
Used as one embodiment, the form of the child resource and the given format include { RS respectively
SC-FDMA (Single Carrier shared by (Reference Signal, reference signal)
Frequency Division Multiple Access, single carrier frequency division multiplexing) symbol quantity
And position, RS sequences, the position of the SC-FDMA symbols shared by modulation symbol, modulation symbol are reflected
It is mapped to the orthogonal sequence adopted by RE }, the modulation symbol is formed by HARQ-ACK bit modulations.
Used as one embodiment, the form of the child resource and the given format include respectively
HARQ-ACK bit numbers.
Used as one embodiment, the N is 1.
Used as one embodiment, the N is 2, and N number of LTE time slots belong to LTE
Frame.
Used as one embodiment, first selectes the corresponding PRB of resource belongs to PUCCH regions.That is institute
State up signaling to coexist in a PRB with the first form or the second form
Used as one embodiment, the first signaling is for descending scheduling (Downlink Grant)
DCI (Downlink Control Information, Downlink Control Information).As above-mentioned enforcement
Example a sub- embodiment, the first signaling be DCI format 1,1A, 1B, 1C, 1D, 2,2A,
2B, 2C, 2D } in one kind.
Used as one embodiment, the transmission block is MAC (Medium Access Control, matchmaker
Body Access Control) PDU (Protocol Data Unit, protocol Data Unit).
Used as one embodiment, the G is 1.
Used as one embodiment, the G is 2, and the G transmission block is respectively by different antennas
Port sends.
Used as one embodiment, the first signaling includes G modulating-coding index, the G tune
Code index processed is respectively used to indicate the tune adopted by the G transmission block in the transmission block group
Mode processed and code rate (the shared identical G MCS of i.e. described N number of transmission block group).As upper
A sub- embodiment of embodiment is stated, the modulating-coding index is the MCS in LTE
(Modulation and Coding Scheme, Modulation and Coding Scheme).
Used as one embodiment, the given format is the first form, and the J is 1.
Used as one embodiment, the given format is the second form, and the J is 1.
Used as one embodiment, the given format is the 3rd form, and the J is 2.
Used as one embodiment, the given format is the 4th form, and the J is more than 2.
Used as one embodiment, the 4th form is for passing in polymerization carrier number is more than 5 scene
The PUCCH format of defeated HARQ-ACK.
As one embodiment, the quantity of take PRB pair of a PUCCH resource of the 4th form
More than 1.
Used as one embodiment, the up signaling is additionally operable to indicate { SR (Scheduling
Request, dispatch request), RI (Rank Indicator, order instruction), PMI (Precoding
Matrix Indicator, pre-coding matrix instruction), CQI (Channel Quality Indicator,
Channel quality is indicated), PTI (Prcoding Type Indicator, precoding type are indicated) }
In one or more.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A0. receives the second signaling, and the second signaling indicates L candidate resource, and the L is
Positive integer.
Wherein, the first signaling indicates that first selectes index of the resource in the L candidate resource,
First selectes resource is made up of N number of child resource group, and the second signaling is high-level signaling, an institute
Stating candidate resource includes a child resource group in N number of follow-up LTE time slots respectively.
For { the second form, the 3rd form, the 4th form }, shared by the conventional terminal equipment of LTE
PUCCH resource is configured by high-level signaling.Therefore, the second signaling can be avoided on described
Row signaling and traditional PUCCH signalings are clashed.
Used as one embodiment of above-mentioned aspect, the given format is outside the first form
PUCCH format.
Used as one embodiment, the first signaling is transmitted in secondary cell.
Used as one embodiment, the up signaling also indicates whether object transmission block is correctly connect
Receive, the object transmission block is the transmission block outside N number of transmission block group.
Used as one embodiment, the second signaling is RRC (Radio Resource Control, nothing
Line resources control) layer signaling.
Used as one embodiment, the L is 2 positive integer power.
Specifically, according to an aspect of the present invention, it is characterised in that the given format is
One form, the first signaling include the first information and the second information, and the first information indicates N number of son
The corresponding frequency band border of resource group, the second information indicate that the first index for selecting resource compares the first pass
The side-play amount of the index of connection resource.First channel of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first association money
Each the frequency band border of source in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
For the first form, the PUCCH resource shared by the conventional terminal equipment of LTE is by PDCCH
First CCE (Control shared by (Physical Downlink Control Channel)
Channel Element, control channel unit) index indicated by.In above-mentioned aspect, the
One information contributes to base station and selects the preferable frequency band of transmission quality, the second information to help for the UE
In avoiding the conflict with the PUCCH signalings of the first form.
During the frequency band border is two borders of the system bandwidth that can be used for the first form of transmission
One.Used as one embodiment, the first information is indicated by 1 information bit.
Used as one embodiment, the W is in { 32,36 }.
Used as one embodiment, the first signaling is transmitted on PDCCH, and the Channel Elements are CCE.
Used as one embodiment, the first signaling is transmitted on ePDCCH, and the Channel Elements are eCCE.
As one embodiment, transmit in the second time slot of first signaling in a LTE subframe,
RE shared by patterns of the RE shared by first signaling in LTE time slots and a PDCCH exists
Pattern in LTE time slots is identical, patterns of the RE shared by the Channel Elements in LTE time slots
It is identical with patterns of the RE shared by a CCE in LTE time slots.
Used as one embodiment, the first signaling is transmitted in a LTE time slot, the Channel Elements
Shared RE includes Part I and Part II in the LTE time slots, wherein Part I and
RE shared by respectively with two CCE of pattern of RE shared by Part II in the LTE time slots
Pattern in a LTE time slot is identical.
Specifically, above-mentioned aspect of the invention, it is characterised in that step C also includes
Following steps：
- step C0. determines that the transmit power of the up signaling is the first power.
Wherein, the first power with total drift value change and linear change, the total drift value is
Adjustment work(by indicated by each TPC command in target TPC command (Command) set
The sum of rate, the target TPC command set include the UE reset (Reset) after by the end of
All TPC commands indicated by physical layer signaling that first signaling is received.
The essence of above-mentioned aspect is the TPC in first signaling of (minimum thread is LTE time slots)
The descending DCI of the indicated adjustment performance number of order and tradition (minimum thread is LTE subframes)
In TPC command indicated by adjustment performance number can be superimposed.
Used as one embodiment, the linear gradient of the first power to the total drift value is 1.As
One embodiment, the unit of the first power is dBm (milli decibel).
Used as one embodiment, above-mentioned physical layer signaling includes that minimum thread is LTE time slots
Signaling and minimum thread for LTE subframes signaling.
Specifically, above-mentioned aspect of the invention, it is characterised in that the first power is according to LTE
The transmit power of the given format that scheme determines, except following amendment：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
Aforementioned aspect of the present invention ensure that the BLER of the up signaling and traditional PUCCH letters
Order is compared and will not be reduced.
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, the transmission of the N number of transmission block group of the first signaling scheduling
- step B. sends N number of transmission block group, and N number of transmission block group is respectively in N number of LTE
Time slot sends
- step C. receives N number of up signaling, N number of sub- money in N number of child resource group respectively
Source group is located at N number of follow-up LTE time slots respectively, and N number of up signaling indicates respectively described N number of
Whether the transmission block in transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
Specifically, according to an aspect of the present invention, it is characterised in that step A also includes
Following steps：
- step A0. sends the second signaling, and the second signaling indicates L candidate resource, and the L is
Positive integer.
Wherein, the first signaling indicates that first selectes index of the resource in the L candidate resource,
First selectes resource is made up of N number of child resource group, and the second signaling is high-level signaling, an institute
Stating candidate resource includes a child resource group in N number of follow-up LTE time slots respectively.
Specifically, according to an aspect of the present invention, it is characterised in that the given format is
One form, the first signaling include the first information and the second information, and the first information indicates N number of son
The corresponding frequency band border of resource group, the second information indicate that the first index for selecting resource compares the first pass
The side-play amount of the index of connection resource.First channel of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first association money
Each the frequency band border of source in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
Specifically, according to an aspect of the present invention, it is characterised in that step C also includes
Following steps：
- step C0. determines that the transmit power of the up signaling is the first power.
Wherein, the first power with total drift value change and linear change, the total drift value is
Adjustment work(by indicated by each TPC command in target TPC command (Command) set
The sum of rate, the target TPC command set include the UE after a reset by the end of the first signaling
The all TPC commands indicated by physical layer signaling for receiving.
Specifically, above-mentioned aspect of the invention, it is characterised in that the first power is according to LTE
The transmit power of the given format that scheme determines, except following amendment：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
The invention discloses a kind of user equipment for supporting low latency radio communication, wherein, including such as
Lower module：
First module：For receiving the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
Second module：For receiving N number of transmission block group, N number of transmission block group is respectively N number of
LTE time slots send
3rd module：For sending N number of up signaling, the N in N number of child resource group respectively
Individual sub- set of resources not Wei Yu N number of follow-up LTE time slots, N number of up signaling indicates respectively institute
Whether the transmission block stated in N number of transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
Used as one embodiment, above-mentioned user equipment is characterised by, the first module is additionally operable to receive
Second signaling, the second signaling indicate L candidate resource, and the L is positive integer.Wherein, first
Signaling indicates that first selectes index of the resource in the L candidate resource, the first selected resource by
N number of child resource group composition, the second signaling is high-level signaling, and a candidate resource is in institute
Include a child resource group respectively in stating N number of follow-up LTE time slots.
Used as one embodiment, above-mentioned user equipment is characterised by, the given format is first
Form, the first signaling include the first information and the second information, and the first information indicates N number of sub- money
The corresponding frequency band border of source group, the second information indicate that the first index for selecting resource compares the first association
The side-play amount of the index of resource.First channel list of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first correlated resources
Each frequency band border in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
Used as one embodiment, above-mentioned user equipment is characterised by, the 3rd module is additionally operable to determine
The transmit power of the up signaling is the first power.Wherein, the first power is with total drift value
Change and linear change, the total drift value is by target TPC command (Command) set
Each TPC command indicated by adjustment power sum, the target TPC command set includes
All TPC indicated by physical layer signaling that the UE is received by the end of the first signaling after a reset
Order.First power is the transmit power of the given format determined according to LTE schemes, except
It is following to correct：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
The invention discloses a kind of base station equipment for supporting low latency radio communication, wherein, including such as
Lower module：
First module：For sending the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
Second module：For sending N number of transmission block group, N number of transmission block group is respectively N number of
LTE time slots send
3rd module：For receiving N number of up signaling, the N in N number of child resource group respectively
Individual sub- set of resources not Wei Yu N number of follow-up LTE time slots, N number of up signaling indicates respectively institute
Whether the transmission block stated in N number of transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
Used as one embodiment, above-mentioned base station equipment is characterised by, the first module is additionally operable to send out
The second signaling, the second signaling is sent to indicate L candidate resource, the L is positive integer.Wherein,
One signaling indicates that first selectes index of the resource in the L candidate resource, and first selectes resource
It is made up of N number of child resource group, the second signaling is high-level signaling, a candidate resource exists
Include a child resource group in N number of follow-up LTE time slots respectively.
Used as one embodiment, above-mentioned base station equipment is characterised by, the given format is first
Form, the first signaling include the first information and the second information, and the first information indicates N number of sub- money
The corresponding frequency band border of source group, the second information indicate that the first index for selecting resource compares the first association
The side-play amount of the index of resource.First channel list of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first correlated resources
Each frequency band border in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
Used as one embodiment, above-mentioned base station equipment is characterised by, the 3rd module is additionally operable to determine
The transmit power of the up signaling is the first power.Wherein, the first power is with total drift value
Change and linear change, the total drift value is by target TPC command (Command) set
Each TPC command indicated by adjustment power sum, the target TPC command set includes
All TPC indicated by physical layer signaling that the UE is received by the end of the first signaling after a reset
Order.First power is the transmit power of the given format determined according to LTE schemes, except
It is following to correct：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
Existing public technology is compared, the present invention has following technical advantage：
-. reduce the delay of eating dishes without rice or wine brought by PUCCH
-. compatible existing LTE equipment, it is to avoid mutually conflict with traditional PUCCH signalings
-. spectrum utilization efficiency is improved, while guaranteeing the BLER of up signaling.
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：
The flow chart that Fig. 1 shows downlink transfer according to an embodiment of the invention；
Fig. 2 shows that up signaling according to an embodiment of the invention is located at showing for PUCCH regions
It is intended to；
Fig. 3 shows that given format according to an embodiment of the invention is the signal of the 3rd form
Figure；
Fig. 4 shows the signal of the scheduling sequential of the first signaling according to an embodiment of the invention
Figure；
Fig. 5 shows the transfer process figure of the second signaling according to an embodiment of the invention；
Fig. 6 shows the structured flowchart of the processing meanss in UE according to an embodiment of the invention；
Fig. 7 shows the structural frames of the processing meanss in base station according to an embodiment of the invention
Figure；
Specific embodiment
Technical scheme is described in further detail below in conjunction with accompanying drawing, needs explanation
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 downlink transfer flow chart, as shown in Figure 1.In accompanying drawing 1, base station N1
It is the maintenance base station of the Serving cell of UE U2, is optional step the step of mark in square frame F1.
ForBase station N1, the first signaling, the N number of transmission of the first signaling scheduling are sent in step s 11
The transmission of block group.N number of transmission block group, N number of transmission block group difference are sent in step s 12
Send in N number of LTE time slots.The transmit power of N number of up signaling is determined in step s 13
It is the first power.Receive N number of up signaling in step S14 in N number of child resource group respectively,
N number of up signaling indicates respectively whether the transmission block in N number of transmission block group is correctly connect
Receive.
ForUE U2, the first signaling is received in the step s 21.Receive in step S22 N number of
Transmission block group.The transmit power for determining N number of up signaling in step S23 is the first power.
Send N number of up signaling in step s 24 in N number of child resource group respectively.
In embodiment 1, the first signaling is physical layer signaling, and the N is positive integer.N number of son
Set of resources Wei Yu not N number of follow-up LTE time slots.One transmission block group includes G transmission block,
The G is positive integer.One child resource group includes J child resource, a child resource
Form is part of the given format in a LTE time slot, and the J is 1 or 2.It is described it is N number of after
Continuous LTE time slots are respectively after N number of LTE time slots.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
Used as the sub- embodiment 1 of embodiment 1, N number of follow-up LTE time slots are located at LTE subframes
#i, the first power is：
Wherein, PCMAX,cI () is that the maximum in LTE subframes #i of the UE U2 in main serving cell is sent out
Send power, P0_PUCCHAnd ΔF_PUCCH(F) it is by the value of high-level signaling configuration, PL respectivelycIt is that UE U2 are surveyed
The path loss measured, h (nCQI,nHARQ,nSR) it is the value related to the given format, ΔTxD(F') it is
The value related to the quantity of the antenna port for sending the up signaling.PCMAX,c(i), P0_PUCCH,
ΔF_PUCCH(F), PLc, h (nCQI,nHARQ,nSR), ΔTxD(F') specific definition refers to TS36.213.G(i)
It is total drift value, the total drift value is by each TPC command in target TPC command set
The sum of indicated adjustment power, the target TPC command set include that the UE is resetting (i.e.
After receiving Meg 2) by the end of (including) first signaling receive it is all by physical layer signaling
The TPC command of instruction.
Used as the sub- embodiment 2 of embodiment 1, N number of follow-up LTE time slots are located at LTE subframes
#i, the first power is：
PPUCCH(i)=min { PCMAX,c(i),P0_PUCCH+PLc+G(i)+3}[dBm]
Wherein, PCMAX,c(i), P0_PUCCH, PLc, G (i) respectively with reference to above-mentioned sub- embodiment 1 in retouch
State.
The essence of above-mentioned 2 sub- embodiments is：First power is according to described in the determination of LTE schemes
The transmit power of given format, except following amendment：
-. g (i) is replaced using total drift value G (i)
-. increase the extra offset of 3dB.
Embodiment 2
Embodiment 2 illustrates schematic diagram of the up signaling positioned at PUCCH regions, as shown in Figure 2.
In accompanying drawing 2, two PRB in one PUCCH region of grid mark composition of stain filling, described two
Respectively positioned at two frequency band borders of current system bandwidth, described two PRB are located at one to individual PRB respectively
The first time slot and the second time slot in individual LTE subframes.The rope of Z in current system bandwidth PRB couple
It is integer from 0 to Z-1 respectively to draw.
In embodiment 2, the N in the present invention is 2, and the J is 1, N number of LTE time slots
Positioned at a LTE subframe.
Used as the sub- embodiment 1 of the embodiment 2, base station sends the second signaling to UE, the second signaling
L candidate resource is indicated, the L is 2.Wherein, the first signaling indicates that the first selected resource exists
Index in the L candidate resource, first select resource by the present invention in described N number of sub- money
Source group composition, the second signaling is high-level signaling, and the L candidate resource includes：
- the first candidate resource. including the first child resource and the 3rd child resource.
- the second candidate resource. including the second child resource and the 4th child resource.
Used as the sub- embodiment 2 of the embodiment 2, the given format in the present invention is the first lattice
Formula, the first signaling include the first information and the second information, described in the first information instruction present invention
The corresponding frequency band border of N number of child resource group is upper frequency band border (near PRB#Z-1) or lower frequency
Band border (near PRB#0), the second information indicate that the first index for selecting resource compares the first pass
The side-play amount of the index of connection resource.First channel of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group.First association money
Source includes the first child resource on the upper frequency band border of the first time slot, on the lower frequency band border of the first time slot
Including the second child resource, include the 3rd child resource on the upper frequency band border of the second time slot, at second
The lower frequency band border of gap includes the 4th child resource.The first information and the second information have indicated collectively first
Selected resource.
Used as the sub- embodiment 3 of embodiment 2, the given format in the present invention is the first form,
The index of the first PRB for selecting resource corresponding (i.e. shared) is indexed less than or equal to first, or
Person more than or equal to second index, first index be target-subframe the first time slot in can be used for the first lattice
Maximum in the index of the PRB of formula, second index and first index and be equal to system bandwidth in
PRB sums subtract 1, the target-subframe is the transmission subframe of N number of up signaling.First
Index detailed description with reference to TS36.211 5.4.3 section in for PUCCH format 1,1a,
1b } variable m maximum.
As the sub- embodiment 4 of the embodiment 2, the first child resource and the 4th child resource composition one
The PUCCH resource of the first form, the second child resource and the 3rd child resource constitute first form
PUCCH resource.The essence of above-mentioned sub- embodiment 4 is that the PUCCH resource of first form exists
Part in two LTE time slots simultaneously, or while can only avoid being used for transmission for short TTI
HARQ-ACK.Above-mentioned sub- embodiment 4 minimizes the child resource in the present invention and PUCCH moneys
The conflict in source.
Embodiment 3
Embodiment 3 illustrates the schematic diagram that given format is the 3rd form, as shown in Figure 3.Accompanying drawing
In 3, the grid of thick line mark is the corresponding PRB of candidate resource,
In embodiment 3, the N in the present invention is 1, and the J is 2, and the given format is the
Three forms.Base station sends the second signaling to UE, and the second signaling indicates L candidate resource, the L
For 2.Wherein, the first signaling indicates that first selectes index of the resource in the L candidate resource,
First select resource by the present invention in described N number of child resource group constitute, the second signaling is high-rise letter
Order, the L candidate resource include { the first candidate resource, the second candidate resource, the 3rd candidate
Resource, the 4th candidate resource }.
In embodiment 3, a candidate resource includes 2 child resources, 2 child resources point
Zhan Yong not two continuous PRB.
Used as the sub- embodiment 1 of embodiment 3,2 child resources are respectively used to transmit different letters
Breath bit.
Embodiment 4
Embodiment 4 illustrates the schematic diagram of the scheduling sequential of the first signaling, as shown in Figure 4.Accompanying drawing
In 4, the grid of oblique line mark is the transmission time slot of the first signaling.
In embodiment 4, the described N number of time slot in the present invention is in same LTE subframes
The scheduling sequential relationship of 2 LTE time slots, i.e. the first signaling and N number of time slot is respectively such as arrow
A7 and A8 is indicated.
Described N number of follow-up LTE time slots in the present invention are the D after N number of time slot respectively
Individual time slot.The D is positive integer.In described N number of up signaling and the present invention i.e. in the present invention
Described N number of transmission block group scheduling sequential relationship respectively as shown in arrow R7 and R8.
Used as the sub- embodiment 1 of embodiment 4, the D is 4.
Used as the sub- embodiment 1 of embodiment 4, the D is 6
Embodiment 5
Embodiment 5 illustrates the transfer process figure of the second signaling, as shown in Figure 5.In accompanying drawing 5,
Base station N3 is the maintenance base station of the Serving cell of UE U4.
Base station N3 sends the second signaling in step s 30.UE U4 receive the second letter in step s 40
Order, the second signaling indicate L candidate resource, and the L is positive integer.
In embodiment 5, the first signaling indicates the first selected resource in the L candidate resource
Index, first select resource by the present invention in described N number of child resource group constitute, the second signaling is
High-level signaling, a candidate resource include one in N number of follow-up LTE time slots respectively
The child resource group.
Used as the sub- embodiment 1 of embodiment 5, the second signaling indicates L resource index, and the L is individual
Index corresponds to the L candidate resource respectively.The resource index is nonnegative integer.
Embodiment 6
Embodiment 6 illustrates the structured flowchart of the processing meanss in a UE, as shown in Figure 6.It is attached
In Fig. 6, UE processing meanss 200 are main by receiver module 201, receiver module 202 and sending module
203 compositions.
Receiver module 201 be used for receive the first signaling, the N number of transmission block group of the first signaling scheduling send out
Send.Receiver module 202 is used to receive N number of transmission block group, and N number of transmission block group is respectively in N
Individual LTE time slots send.Sending module 203 is for sending N number of respectively in N number of child resource group
Row signaling, N number of child resource group are located at N number of follow-up LTE time slots respectively, described N number of up
Signaling indicates respectively whether the transmission block in N number of transmission block group is correctly received.
In embodiment 6, the first signaling is physical layer signaling, and the N is less than 3 positive integer.
One transmission block group includes G transmission block, and the G is positive integer.One child resource
Group includes J child resource, and the form of a child resource is given format in a LTE time slot
Interior part, the J are 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
As the sub- embodiment 1 of embodiment 6, the first signaling be DCI format 1,1A, 1B, 1C,
1D, 2,2A, 2B, 2C, 2D } in one.
Used as the sub- embodiment 2 of embodiment 6, the RE shared by the first signaling is by one or more
The Channel Elements composition, the Channel Elements include W RE, for common CP (Cyclic
Prefix, Cyclic Prefix), the W is 36, and for extension CP, the W is 32.
Embodiment 7
Embodiment 7 illustrates the structured flowchart of the processing meanss in a base station, as shown in Figure 7.
In accompanying drawing 7, base station processing meanss 300 are main by sending module 301, sending module 302 and reception
Module 303 is constituted.
Sending module 301 be used for send the first signaling, the N number of transmission block group of the first signaling scheduling send out
Send.Sending module 302 is used to send N number of transmission block group, and N number of transmission block group is respectively in N
Individual LTE time slots send.Receiver module 303 is for receiving N number of respectively in N number of child resource group
Row signaling, N number of up signaling indicate respectively transmission block in N number of transmission block group whether
It is correctly received.
In embodiment 7, the first signaling is physical layer signaling, and the N is positive integer.Described in one
Transmission block group includes G transmission block, and the G is positive integer.One child resource group includes J
Individual child resource, the form of a child resource is part of the given format in a LTE time slot,
The J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
Used as the sub- embodiment 1 of embodiment 7, a up signaling includes G bit, institute
State G bit and indicate respectively whether G transmission block in corresponding transmission block group is properly decoded.
Used as the sub- embodiment 2 of embodiment 7, a up signaling includes 1 bit, institute
State 1 bit and indicate whether G transmission block in corresponding transmission block group is all properly decoded.
One of ordinary skill in the art will appreciate that all or part of step in said 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 be realized using one or more integrated circuit.Accordingly, above-mentioned enforcement
Each modular unit in example, can be realized using example, in hardware, it is also possible to 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, panel computer, notebook, card of surfing Internet,
The Wireless Telecom Equipments such as vehicular communication equipment, wireless senser.Base station in the present invention is included but not
It is limited to the Wireless Telecom Equipments such as macrocell base stations, microcell base station, Home eNodeB, relay base station.
The above, only presently preferred embodiments of the present invention is not intended to limit the present invention's
Protection domain.All any modifications within the spirit and principles in the present invention, made, equivalent,
Improve etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of method in UE for supporting low latency radio communication, wherein, comprise the steps：
- step A. receives the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
- step B. receives N number of transmission block group, and N number of transmission block group is respectively in N number of LTE
Time slot sends
- step C. sends N number of up signaling, N number of sub- money in N number of child resource group respectively
Source group is located at N number of follow-up LTE time slots respectively, and N number of up signaling indicates respectively described N number of
Whether the transmission block in transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
2. method according to claim 1, it is characterised in that step A also includes
Following steps：
- step A0. receives the second signaling, and the second signaling indicates L candidate resource, and the L is
Positive integer.
Wherein, the first signaling indicates that first selectes index of the resource in the L candidate resource,
First selectes resource is made up of N number of child resource group, and the second signaling is high-level signaling, an institute
Stating candidate resource includes a child resource group in N number of follow-up LTE time slots respectively.
3. method according to claim 1, it is characterised in that the given format is
One form, the first signaling include the first information and the second information, and the first information indicates N number of son
The corresponding frequency band border of resource group, the second information indicate that the first index for selecting resource compares the first pass
The side-play amount of the index of connection resource.First channel of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first association money
Each the frequency band border of source in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
4. method according to claims 1 to 3, it is characterised in that step C is also wrapped
Include following steps：
- step C0. determines that the transmit power of the up signaling is the first power.
Wherein, the first power with total drift value change and linear change, the total drift value is
The sum of the adjustment power by indicated by each TPC command in target TPC command set, it is described
Target TPC command set includes the UE after a reset by the end of owning that the first signaling is received
The TPC command indicated by physical layer signaling.
5. method according to claim 4, it is characterised in that the first power is according to LTE
The transmit power of the given format that scheme determines, except following amendment：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
6. a kind of method in base station for supporting low latency radio communication, wherein, including following step
Suddenly：
- step A. sends the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
- step B. sends N number of transmission block group, and N number of transmission block group is respectively in N number of LTE
Time slot sends
- step C. receives N number of up signaling respectively in N number of follow-up LTE time slots, it is described it is N number of on
Row signaling indicates respectively whether the transmission block in N number of transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
7. method according to claim 6, it is characterised in that step A also includes
Following steps：
- step A0. sends the second signaling, and the second signaling indicates L candidate resource, and the L is
Positive integer.
Wherein, the first signaling indicates that first selectes index of the resource in the L candidate resource,
First selectes resource is made up of N number of child resource group, and the second signaling is high-level signaling, an institute
Stating candidate resource includes a child resource group in N number of follow-up LTE time slots respectively.
8. method according to claim 6, it is characterised in that the given format is
One form, the first signaling include the first information and the second information, and the first information indicates N number of son
The corresponding frequency band border of resource group, the second information indicate that the first index for selecting resource compares the first pass
The side-play amount of the index of connection resource.First channel of first correlated resources by shared by the first signaling
The index of unit determines that first selectes resource is made up of N number of child resource group, the first association money
Each the frequency band border of source in N number of follow-up LTE time slots includes a child resource respectively
Group.RE shared by first signaling is made up of Channel Elements one or more described, the letter
Road unit includes that W RE, the W are greater than 10 positive integer.
9. the method according to claim 6～8, it is characterised in that step C is also wrapped
Include following steps：
- step C0. determines that the transmit power of the up signaling is the first power.
Wherein, the first power with total drift value change and linear change, the total drift value is
The sum of the adjustment power by indicated by each TPC command in target TPC command set, it is described
Target TPC command set includes the UE after a reset by the end of owning that the first signaling is received
The TPC command indicated by physical layer signaling.
10. method according to claim 9, it is characterised in that the first power is according to LTE
The transmit power of the given format that scheme determines, except following amendment：
-. g (i) is replaced using the total drift value
-. increase the extra offset of 3dB.
A kind of 11. user equipmenies for supporting low latency radio communication, wherein, including such as lower module：
First module：For receiving the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
Second module：For receiving N number of transmission block group, N number of transmission block group is respectively N number of
LTE time slots send
3rd module：For sending N number of up signaling, the N in N number of child resource group respectively
Individual sub- set of resources not Wei Yu N number of follow-up LTE time slots, N number of up signaling indicates respectively institute
Whether the transmission block stated in N number of transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
A kind of 12. base station equipments for supporting low latency radio communication, wherein, including such as lower module：
First module：For sending the first signaling, the transmission of the N number of transmission block group of the first signaling scheduling
Second module：For sending N number of transmission block group, N number of transmission block group is respectively N number of
LTE time slots send
3rd module：It is for receiving N number of up signaling respectively in N number of follow-up LTE time slots, described
N number of up signaling indicates respectively whether the transmission block in N number of transmission block group is correctly received.
Wherein, the first signaling is physical layer signaling, and the N is positive integer.One transmission block
Group includes G transmission block, and the G is positive integer.One child resource group includes J son money
Source, the form of a child resource is part of the given format in a LTE time slot, described
J is 1 or 2.The given format is one below：
- the first form .LTE PUCCH formats { 1,1a, 1b }
- the second form .LTE PUCCH formats { 2,2a, 2b }.
- the three form .LTE PUCCH formats 3
- the four form. for supporting the PUCCH format more than 20 ACK/NACK bits.
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| CN201510600989.4A CN106550445B (en) | 2015-09-20 | 2015-09-20 | Method and apparatus for low latency in wireless communications |
| PCT/CN2016/098269 WO2017045555A1 (en) | 2015-09-20 | 2016-09-07 | Method and device in ue and base station supporting low-delay radio communication |
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| CN108809543A (en) * | 2017-05-05 | 2018-11-13 | 华为技术有限公司 | The method and apparatus for being used for transmission data |
| CN108882365A (en) * | 2017-05-08 | 2018-11-23 | 上海朗帛通信技术有限公司 | A kind of base station, method for wireless communications and device in user equipment |
| CN110365438A (en) * | 2018-03-26 | 2019-10-22 | 华为技术有限公司 | Method for transmitting signals, relevant device and system |
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| CN110612755B (en) * | 2017-04-27 | 2021-12-24 | 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 |
| CN112187424B (en) * | 2019-07-04 | 2023-02-03 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
| CN115066025A (en) * | 2019-10-17 | 2022-09-16 | 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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