CN107623564B - A kind of method and apparatus in wireless communication - Google Patents
A kind of method and apparatus in wireless communication Download PDFInfo
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- CN107623564B CN107623564B CN201610547491.0A CN201610547491A CN107623564B CN 107623564 B CN107623564 B CN 107623564B CN 201610547491 A CN201610547491 A CN 201610547491A CN 107623564 B CN107623564 B CN 107623564B
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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
Abstract
The invention discloses the method and apparatus in a kind of wireless communication.UE determines First ray, and receives the first reference signal.First reference signal occupies first time interval in the time domain, and the duration of the first time interval, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond.In first parameter and { time-domain position of the first time interval in first time unit, first time unit is in the time-domain position in first time window } at least the former is related, second parameter is configurable.The First ray be used to generate first reference signal.The present invention is by by First ray and { the first parameter, second parameter } at least one of establish association, to guarantee that initial value of first reference signal in different time intervals is different, and then increase the randomness of first reference signal, inter-cell interference is reduced, systematic entirety energy is improved.
Description
Technical field
This application involves the transmission plans of the wireless signal in wireless communication system, more particularly to support low latency communication
Base station and UE in method and apparatus.
Background technique
Existing LTE (Long-term Evolution, long term evolution) and LTE-A (Long Term Evolution
Advanced, the long term evolution of enhancing) in system, TTI (Transmission Time Interval, Transmission Time Interval) or
Person's subframe (Subframe) or PRB (Physical Resource Block, Physical Resource Block) are right in time to (Pair)
Answer a ms (milli-second, millisecond).One LTE subframe includes two time slots (Time Slot), is the first time slot respectively
With the second time slot, and first time slot and second time slot occupy first half millisecond of a LTE subframe and later half respectively
A millisecond.
Traditional LTE system, DMRS (Downlink Modulation Reference Signal, downstream modulation reference
Signal) initial value of corresponding formation sequence changes with the position of the subframe where DMRS in a radio frame, to increase
Add the randomness of DMRS sequence, fights inter-cell interference.
In 3GPP (3rd Generation Partner Project, third generation cooperative partner program) Release 14
Reduced Latency (reducing delay) and wireless access technology (NR, New the Radio access of a new generation
Technologies in), an important application scenarios are exactly URLLC (Ultra-Reliable and Low Latency
Communications, ultrahigh reliability and low latency communication).For the scene of URLLC, traditional LTE frame structure need by
It redesigns.New sTTI (Short TTI, short transmission time interval) will be introduced by system in future.
Summary of the invention
A kind of intuitive design method for supporting sTTI, the formation sequence for being just to maintain DMRS is consistent with legacy system, i.e.,
The initial value of DMRS formation sequence changes with the time-domain position of the subframe where DMRS in a radio frame.However such method
A problem can be brought, if the DMRS that is configured of the UE of the neighboring community Liang Ge occur on the given sTTI in some subframe it is dry
It disturbs, the interference, which will be given described in this subframe on subsequent all sTTI of sTTI, to be existed, and then can generate performance
Loss.
In view of the above-mentioned problems, this application provides solutions.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be arbitrarily combined with each other.For example, embodiment and embodiment in the UE of the application
In feature can be applied in base station, vice versa.
This application discloses a kind of methods in UE for being used for low latency communication, wherein includes the following steps:
Step A. determines First ray；
Step B. receives the first reference signal；
Wherein, first reference signal occupies first time interval in the time domain, and the first time interval continues
Time, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；Described first
Parameter and { time-domain position of the first time interval in first time unit, first time unit is in first time window
Time-domain position at least the former is related, second parameter is configurable；The duration of the first time unit
Less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described
First reference signal.
In traditional LTE and lte-a system, the initial value of DMRS formation sequence is with the subframe where the DMRS entire
Position in radio frames is related, and then improves the randomness of DMRS sequence to fight inter-cell interference.
The above method of the application design by by the First ray and { the first parameter, the second parameter } at least it
One establishes association, ensure that the initial value of the First ray is based on each time interval and is changed or first sequence
The initial value of column is configurable, and then ensure that the randomization of the first reference signal described in low latency system, to fight cell
Between interfere.
As one embodiment, the First ray includes positive integer bit.
As one embodiment, the First ray is the RS sequence of first reference signal.
As one embodiment, first reference signal corresponds to DMRS.
As one embodiment, the first time interval includes R multicarrier symbol, and the R is positive integer.
As a sub- embodiment of the embodiment, the multicarrier symbol is OFDM (Orthogonal Frequency
Division Multiplexing, orthogonal frequency division multiplexing) symbol.
As a sub- embodiment of the embodiment, the multicarrier symbol is SC-FDMA (Single-Carrier
Frequency Division Multiple Access, single carrier frequency division multiplexing access) symbol.
As a sub- embodiment of the embodiment, the multicarrier symbol is FBMC (Filter Bank Multi
Carrier, filter bank multi-carrier) symbol.
As a sub- embodiment of the embodiment, the multicarrier symbol is comprising CP (Cyclic Prefix, circulation
Prefix) OFDM symbol.
As a sub- embodiment of the embodiment, the multicarrier symbol is the DFT-s-OFDM comprising CP
(Discrete Fourier Transform Spreading Orthogonal Frequency Division
Multiplexing, the orthogonal frequency division multiplexing of discrete Fourier transform spread spectrum) symbol.
As a sub- embodiment of the embodiment, the R be in { 1,2,4,7 } one of.
As one embodiment, the first time unit is a subframe.
As one embodiment, the first time unit is the time slot (Time Slot) of a LTE.
As one embodiment, the first time window is the radio frames of a LTE.
As one embodiment, the first time window occupies continuous positive integer millisecond in time domain.
It include positive integer time quantum, the first time unit in the first time window as one embodiment
It is one in the positive integer time quantum.
As one embodiment, the duration of the first time unit is 1 millisecond, and the first time window continues
Time is the positive integer times of the duration of the first time unit.
As one embodiment, the duration of the first time interval is less than or equal to 0.5 millisecond.
As one embodiment, the first time unit includes T time interval, and the first time interval is described
One in T time interval, the T is greater than 1 positive integer.
As a sub- embodiment of the embodiment, at least continue there are two time interval in the T time interval
Time is different.
As a sub- embodiment of the embodiment, the duration of the T time interval is identical.
As one embodiment, for the first time unit, second parameter is only applied to the first time
Interval.
As one embodiment, second parameter be at least applied to one except the first time unit when
Between be spaced.
As one embodiment, second parameter can only be applied to the first time interval.
As one embodiment, time-domain position of the first time interval in the first time unit includes
{ time domain initial position of the first time interval in the first time unit, the first time interval is described
Time domain initial position and time domain final position in one time quantum, the length of the duration of the first time interval } in
At least one of.
According to the one aspect of the application, the above method is characterized in that, the step B further includes following steps:
Step B1. receives the first wireless signal；
Wherein, the channel parameter of the first reference signal wireless channel experienced can be used for determining first nothing
The channel parameter of line signal wireless channel experienced.
As one embodiment, for sending the antenna port group of first reference signal and for sending described first
The antenna port group of wireless signal is identical, includes one or more antenna port in the antenna port group.
As one embodiment, the channel parameter includes channel impulse response.
As one embodiment, the channel parameter includes multipath fading.
As one embodiment, first wireless signal is located in the first time unit in time domain.
As a sub- embodiment of the embodiment, first wireless signal occupies the first time unit in time domain
In a part.
As a sub- embodiment of the embodiment, first wireless signal occupies the first time interval in time domain
All or part.
As a sub- embodiment of the embodiment, first wireless signal occupies the complete of given interval in time domain
Portion or a part.Wherein, the given interval is the time interval except the first time interval.
As one embodiment, first wireless signal includes physical layer control signaling.
As one embodiment, first wireless signal include DCI (Downlink Control Information,
Downlink Control Information).
As one embodiment, first wireless signal (can be used for transmission physics in down physical layer data channel
The physical layer channel of layer data) on transmit.
As a sub- embodiment of the embodiment, first wireless signal is in PDSCH (Physical Downlink
Shared Channel, Physical Downlink Shared Channel) on transmit.
As a sub- embodiment of the embodiment, first wireless signal is in sPDSCH (Short Latency
Physical Downlink Shared Channel, short delay Physical Downlink Shared Channel) on transmit.
As one embodiment, first wireless signal (can be used for transmission physics in down physical layer control channel
Layer control physical layer channel) on transmit.
As a sub- embodiment of the embodiment, first wireless signal is in PDCCH (Physical Downlink
Control Channel, Physical Downlink Control Channel) on transmit.
As a sub- embodiment of the embodiment, first wireless signal is in EPDCCH (Enhanced Physical
Downlink Control Channel, the Physical Downlink Control Channel of enhancing) on transmit.
As a sub- embodiment of the embodiment, first wireless signal is in sPDCCH (Short Latency
Physical Downlink Control Channel, the Physical Downlink Control Channel of short delay) on transmit.
As one embodiment, the corresponding transmission channel of first wireless signal is DL-SCH (Downlink Shared
Channel, DSCH Downlink Shared Channel).
As one embodiment, the corresponding physical layer channel of first wireless signal is PMCH (Physical
Multicast Channel, Physical Multicast Channel).
As one embodiment, the corresponding logic channel of first wireless signal is SC-MCCH (Single Cell
Multicast Control Channel, single cell multicast control channel).
As one embodiment, the corresponding logic channel of first wireless signal is SC-MTCH (Single Cell
Multicast Transport Channel, single cell multicast transmission channel).
As one embodiment, first reference signal is used for the channel estimation reconciliation of first wireless signal
It adjusts.
According to the one aspect of the application, the above method is characterized in that, the step B further includes following steps:
Step B2. sends second wireless singal；
Wherein, first reference signal is used for determining that the second wireless singal, the second wireless singal include
CSI。
As one embodiment, the characteristics of above-mentioned aspect, is that first reference signal is also used to the UE for base station
Channel quality to the down channel of the UE is assessed, and is fed back by the second wireless singal.
As one embodiment, the CSI includes { CRI (Channel State Information Reference
Signal Resource Indicator, the instruction of channel state information reference signals resource), RI (Rank Indicator, rank
Number instruction), CQI (Channel Quality Indicator, channel quality instruction), PMI (Precoding Matrix
At least one of Indicator, pre-coding matrix instruction) }.
As one embodiment, the UE executes channel estimation for first reference signal, and then determines the CSI
(Channel State Information, channel state information).
As one embodiment, the second wireless singal (can be used for transmission physics in upstream physical layer data channel
The physical layer channel of layer data) in transmission.
As a sub- embodiment of the embodiment, the second wireless singal is in PUSCH (Physical Uplink
Shared Channel, Physical Uplink Shared Channel) on transmit.
As a sub- embodiment of the embodiment, the second wireless singal is in sPUSCH (Short Latency
Physical Uplink Shared Channel, short delay Physical Uplink Shared Channel) on transmit.
As one embodiment, the second wireless singal (is simply possible to use in transmission object in upstream physical layer control channel
Manage layer control signaling physical layer channel) on transmit.
As a sub- embodiment of the embodiment, the second wireless singal is in PUCCH (Physical Uplink
Control Channel, Physical Uplink Control Channel) on transmit.
As a sub- embodiment of the embodiment, the second wireless singal is in sPUCCH (Short Latency
Physical Uplink Control Channel, short delay Physical Uplink Control Channel) on transmit.
According to the one aspect of the application, the above method is characterized in that, the step A further includes following steps:
Step A0. receives the first signaling, and first signaling is used for determining second parameter；
As one embodiment, first signaling is high-level signaling.
As one embodiment, first signaling is RRC (the Radio Resource of UE exclusive (UE-Specific)
Control, wireless heterogeneous networks) signaling.
As one embodiment, first signaling is the RRC signaling of cell exclusive (Cell-Specific).
As one embodiment, first signaling is physical layer signaling.
As a sub- embodiment of the embodiment, first signaling includes the scheduling letter of first wireless signal
Breath, the scheduling information include that { occupied running time-frequency resource, MCS (compile by Modulation and Coding Status, modulation
Code state), NDI, RV (Redundancy Version, redundancy versions), HARQ (Hybrid Automatic Repeat
At least one of reQuest, hybrid automatic repeat-request) process number }.
As one embodiment, the explicit instruction of first signaling second parameter, second parameter is non-negative
Integer, second parameter are used for determining the First ray.
As one embodiment, first signaling includes the default configuration of the First ray.
As one embodiment, the implicit instruction of first signaling second parameter, second parameter is non-negative
Integer, second parameter are used for determining the First ray.
According to the one aspect of the application, the above method is characterized in that, { first time interval is described
Time-domain position in one time quantum, second parameter } at least one of be used for determining the first numerical value, first number
Value is the initial value of the generator of the First ray.
As one embodiment, the step A further includes following steps:
Step A10. initializes the generator of the First ray in the first time interval start time；
Above-described embodiment, which is advantageous in that, initializes the generator of the First ray at each time interval beginning, increases
Add the randomness of the First ray.
As one embodiment, the First ray is pseudo-random sequence.
As one embodiment, first numerical value is integer.
As one embodiment, time-domain position of the first time interval in the first time unit by with
In determining that first numerical value refers to: the first numerical value c by following five formula one of determine.
-
-
-
-
-
Wherein,And nSCIDDefinition referring to TS 36.211.It is less than 504 nonnegative integer, and describedThe PCI of serving cell equal to the UE is describedIt is configured by high-level signaling.The nSCIDBy described first
The corresponding DCI of wireless signal determines, and with SU-/MU-MIMO (Signle-User/Multi-User used by the UE
Multiple input multiple output, single user/multi-user's multiple-input, multiple-output) transmission mode it is related.n1With it is described
Time-domain position of the first time interval in the first time unit is related.Indicate the maximum integer for being not more than X.
Above-described embodiment is advantageous in that first numerical value is single in the first time by the first time interval
Time-domain position recessiveness in member obtains.
As a sub- embodiment of the embodiment, the first time unit includes 7 time intervals, when described first
Between interval be i-th of time interval in 7 time intervals, the n1Equal to (i-1).Wherein, i is greater than 0 not less than 7
Positive integer.
As a sub- embodiment of the embodiment, the first time unit includes T time interval, when described first
Between interval be i-th of time interval in the T time interval, the n1The remainder obtained equal to (i-1) divided by 7.Wherein,
I is greater than 0 positive integer for being not less than T.
As one embodiment, second parameter is used for determining that first numerical value refers to: first number
Value c by following four formula one of determine.
-
-
-
-
-
Wherein,And nSCIDDefinition referring to TS 36.211.It is less than 504 nonnegative integer, and described
The PCI of serving cell equal to the UE is describedIt is configured by high-level signaling.The nSCIDIt is wireless by described first
The corresponding DCI of signal determines, and with SU-/MU-MIMO (Signle-User/Multi-User used by the UE
Multiple input multiple output, single user/multi-user's multiple-input, multiple-output) transmission mode it is related.n2It is described
Second parameter.Indicate the maximum integer for being not more than X.
Above-described embodiment is advantageous in that first numerical value is determined by second parameter of dominant configuration.
As one embodiment, time-domain position and institute of the first time interval in the first time unit
It states the second parameter and be used to determine first variable jointly.
As a sub- embodiment of the embodiment, the first numerical value c by following six formula one of determine.
-
-
-
-
-
-
Wherein, nS,And nSCIDDefinition referring to TS 36.211, nSWhen indicating belonging to first wireless signal
The serial number of gap in a radio frame, and it is no less than 0 and the integer less than 20.It is less than 504 nonnegative integer, and institute
It statesThe PCI of serving cell equal to the UE is describedIt is configured by high-level signaling.The nSCIDBy described
The corresponding DCI of one wireless signal determines, and with SU-/MU-MIMO (Signle-User/Multi-User used by the UE
Multiple input multiple output, single user/multi-user's multiple-input, multiple-output) transmission mode it is related.n1With it is described
Time-domain position of the first time interval in the first time unit is related.n2It is second parameter.Indicate little
In the maximum integer of X.
As an accompanying Examples of the sub- embodiment, the first time unit includes T time interval, and described the
One time interval is i-th of time interval in the T time interval, the n1The remainder obtained equal to (i-1) divided by 7.
Wherein, i is greater than 0 positive integer for being not less than T.
Above-described embodiment and sub- embodiment are advantageous in that the first time interval is in the first time unit
In time-domain position and second parameter be used to determine the first variable jointly, in the time domain for considering the first time interval
It, can the more flexible generating mode for configuring the first variable while position.
According to the one aspect of the application, the above method is characterized in that, { first time interval is described
Time-domain position in one time quantum, second parameter } at least one of be used for determining the first variable.First number
Value is related to first linear variable displacement, and the linearly dependent coefficient between first numerical value and first variable is V time of 2
Power, first variable are equal to the product of the second variable and third variable, and the V is less than 30 nonnegative integer.
As one embodiment, the V is 16.
As one embodiment, the V is 17.
As one embodiment, time-domain position of the first time interval in the first time unit by with
In determining second variable, the bivariate value range is the first integer set, in first integer set extremely
It less include the integer that an element is greater than 10.
As a sub- embodiment of the embodiment, first integer set is made of 16 integers from 1 to 16.
As one embodiment, second parameter is used for determining second variable, the bivariate value
Range is the first integer set, and the integer that an element is greater than 10 is included at least in first integer set.
As one embodiment, second variable is equal toWherein nSIndicate first wireless communication
The serial number of time slot in a radio frame belonging to number, and the nSIt is no less than 0 and the integer less than 20.
As one embodiment, second variable is equal toOne of in.
Wherein nSIndicate the serial number of time slot in a radio frame belonging to first wireless signal, and the nSBe no less than 0 and
Integer less than 20.n1It is related with time-domain position of the first time interval in the first time unit.
As one embodiment, second variable is equal toOne of in.
Wherein nSIndicate the serial number of time slot in a radio frame belonging to first wireless signal, and the nSBe no less than 0 and
Integer less than 20.n2It is second parameter.
As one embodiment, the third variable is equal to following one:
-
-
-
-
-
WhereinIt is less than 504 nonnegative integer, and describedThe PCI of serving cell equal to the UE or institute
It statesIt is configured by high-level signaling.n1Have with time-domain position of the first time interval in the first time unit
It closes.n2It is second parameter.
As one embodiment, the third variable is equal to
As one embodiment, second parameter is used for determining the third variable, the value of the third variable
Range is the second integer set, and the integer that an element is greater than 1007 is included at least in second integer set.
As a sub- embodiment of the embodiment, second integer set is by 512 odd number groups from 1 to 1023
At.
According to the one aspect of the application, the above method is characterized in that, first numerical value and the linear phase of third parameter
It closes, the linearly dependent coefficient of first numerical value and the third parameter is 1；The third parameter is configurable.
As one embodiment, the third parameter is dynamically configured, and the third parameter is 0 or 1.
As one embodiment, the third parameter is nSCID；Wherein, describedIt is less than 504 nonnegative integer, and
It is describedThe PCI of serving cell equal to the UE is describedIt is configured by high-level signaling.
This application discloses a kind of methods in base station for being used for low latency communication, wherein includes the following steps:
Step A. determines First ray；
Step B. sends the first reference signal；
Wherein, first reference signal occupies first time interval in the time domain, and the first time interval continues
Time, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond.Described first
Parameter and { time-domain position of the first time interval in first time unit, first time unit is in first time window
Time-domain position at least the former is related, second parameter is configurable.The duration of the first time unit
Less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond.The First ray be used to generate described
First reference signal.
According to the one aspect of the application, the above method is characterized in that, the step B further includes following steps:
Step B1. sends the first wireless signal；
Wherein, the channel parameter of the first reference signal wireless channel experienced can be used for determining first nothing
The channel parameter of line signal wireless channel experienced.
According to the one aspect of the application, the above method is characterized in that, the step B further includes following steps:
Step B2. receives second wireless singal；
Wherein, first reference signal is used for determining that the second wireless singal, the second wireless singal include
CSI。
According to the one aspect of the application, the above method is characterized in that, the step A further includes following steps:
Step A0. sends the first signaling, and first signaling is used for determining second parameter；
According to the one aspect of the application, the above method is characterized in that, the step A further includes following steps:
Step A1. receives the second signaling by return link；
Wherein, second signaling is by the base station for determining second parameter.
As one embodiment, the return link be used to connect two network equipments.
As one embodiment, the return link includes X2 interface.
As one embodiment, the return link includes SI interface.
As one embodiment, the return link includes that the optical fiber between two network equipments directly couples.
As one embodiment, the base station determines described second according to the input parameter including second signaling
Parameter.
As one embodiment, second signaling is also used for determining the 4th parameter, and the 4th parameter is by described
The sender of two signalings is used to generate the sequence of the reference signal for the first time interval.
As a sub- embodiment of the embodiment, second parameter and the 4th parameter are different.
As a sub- embodiment of the embodiment, second signaling includes the first parameter sets, first parameter
Set includes positive integer parameter.4th parameter belongs to first parameter sets.Second parameter is described first
Parameter except parameter sets.
As a sub- embodiment of the embodiment, second parameter and the 4th parameter are positive integers.
As a sub- embodiment of the embodiment, second parameter and the 4th parameter include positive integer ratio
It is special.
According to the one aspect of the application, the above method is characterized in that, the step A further includes following steps:
Step A2. sends third signaling by return link；
Wherein, the third signaling is by the recipient of the third signaling for determining the second parameter.
As one embodiment, the 5th parameter is directed to the first time for generating by the recipient of the third signaling
The sequence of the reference signal at interval.Second parameter and the 5th parameter are different.
As a sub- embodiment of the embodiment, the third signaling includes the second parameter sets, second parameter
Set includes positive integer parameter.Second parameter belongs to second parameter sets.5th parameter is described second
Parameter except parameter sets.
As a sub- embodiment of the embodiment, second parameter and the 5th parameter are positive integers.
As a sub- embodiment of the embodiment, second parameter and the 5th parameter include positive integer ratio
It is special.
According to the one aspect of the application, the above method is characterized in that, { first time interval is described
Time-domain position in one time quantum, second parameter } at least one of be used for determining the first numerical value, first number
Value is the initial value of the generator of the First ray.
As one embodiment, the step A further includes following steps:
Step A10. initializes the generator of the First ray in the first time interval start time.
According to the one aspect of the application, the above method is characterized in that, { first time interval is described
Time-domain position in one time quantum, second parameter } at least one of be used for determining the first variable.First number
Value is related to first linear variable displacement, and the linearly dependent coefficient between first numerical value and first variable is V time of 2
Power, first variable are equal to the product of the second variable and third variable, and the V is less than 30 nonnegative integer.
According to the one aspect of the application, the above method is characterized in that, first numerical value and the linear phase of third parameter
It closes, the linearly dependent coefficient of first numerical value and the third parameter is 1；The third parameter is configurable.
This application discloses a kind of user equipmenies for being used for low latency communication, wherein including following module:
First processing module determines First ray；
Second processing module receives the first reference signal；
Wherein, first reference signal occupies first time interval in the time domain, and the first time interval continues
Time, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；Described first
Parameter and { time-domain position of the first time interval in first time unit, first time unit is in first time window
Time-domain position at least the former is related, second parameter is configurable；The duration of the first time unit
Less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described
First reference signal.According to the one aspect of the application, above-mentioned user equipment is characterized in that, the first processing module also connects
Receive the first signaling.First signaling is used for determining second parameter.
As one embodiment, the above-mentioned user equipment for being used for low latency communication is characterized in that, first processing
Module also initializes the generator of the First ray in the first time interval start time.
As one embodiment, the above-mentioned user equipment for being used for low latency communication is characterized in that, the second processing
Module also receives the first wireless signal；The channel parameter of the first reference signal wireless channel experienced can be used for determining
The channel parameter of the first wireless signal wireless channel experienced.
As one embodiment, the above-mentioned user equipment for being used for low latency communication is characterized in that, the second processing
Module is also used to send second wireless singal；First reference signal is used for determining the second wireless singal, described
Two wireless signals include CSI.
According to the one aspect of the application, the above-mentioned user equipment for being used for low latency communication is characterized in that, { the institute
State time-domain position of the first time interval in the first time unit, second parameter } at least one of be used for
Determine that the first numerical value, first numerical value are the initial values of the generator of the First ray.
According to the one aspect of the application, the above-mentioned user equipment for being used for low latency communication is characterized in that, { the institute
State time-domain position of the first time interval in the first time unit, second parameter } at least one of be used for
Determine the first variable.First numerical value is related to first linear variable displacement, first numerical value and first variable it
Between linearly dependent coefficient be 2 V power, first variable be equal to the second variable and third variable product, the V is small
In 30 nonnegative integer.
According to the one aspect of the application, the above-mentioned user equipment for being used for low latency communication is characterized in that, described the
One numerical value and third parameter are linearly related, and the linearly dependent coefficient of first numerical value and the third parameter is 1；The third
Parameter is configurable.
This application discloses a kind of base station equipments for being used for low latency communication, wherein including following module:
Third processing module, determines First ray；
Fourth processing module sends the first reference signal；
Wherein, first reference signal occupies first time interval in the time domain, and the first time interval continues
Time, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；Described first
Parameter and { time-domain position of the first time interval in first time unit, first time unit is in first time window
Time-domain position at least the former is related, second parameter is configurable；The duration of the first time unit
Less than or equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described
First reference signal.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, the fourth process
Module also sends the first wireless signal；The channel parameter of the first reference signal wireless channel experienced can be used for determining
The channel parameter of the first wireless signal wireless channel experienced.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, the fourth process
Module also receives second wireless singal；First reference signal is used for determining the second wireless singal, second nothing
Line signal includes CSI.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, the third processing
Module also sends the first signaling；First signaling is used for determining second parameter.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, the third processing
Module is also used at least one of:
- receives the second signaling by return link；Second signaling is by the base station for determining second ginseng
Number.
- sends third signaling by return link；The third signaling is by the recipient of the third signaling for determining
Second parameter.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, { described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One numerical value, first numerical value are the initial values of the generator of the First ray.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, { described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 V power, first variable is equal to the product of the second variable and third variable, and the V is less than 30
Nonnegative integer.
As one embodiment, the above-mentioned base station equipment for being used for low latency communication is characterized in that, first numerical value
Linearly related with third parameter, the linearly dependent coefficient of first numerical value and the third parameter is 1；The third parameter is
Configurable.
Compared to existing public technology, the application has following technical advantage:
- realizes generation and the institute of the First ray by the way that the First ray and first parameter are established connection
State that time-domain position of the first time interval in the first time unit is related, so guarantee first reference signal with
The characteristic of machine and anti-adjacent area interference.
- realizes that the generation of the First ray can be with by the way that the First ray and second parameter are established connection
By signal deployment, and then the randomness of first reference signal and the characteristic of anti-adjacent area interference are further promoted, and
It designs more flexible.
- guarantees to know between adjacent base station by transmitting second signaling and the third signaling on return link
The configuration mode of mutual first reference signal, further avoids inter-cell interference.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of the transmission of first wireless signal of one embodiment according to the application；
Fig. 2 shows according to the first time interval of one embodiment of the application and the first time unit
Schematic diagram；
Fig. 3 shows the first time unit of one embodiment and showing for the first time window according to the application
It is intended to；
Fig. 4 shows the structural block diagram of the processing unit in the UE according to one embodiment of the application.
Fig. 5 shows the structural block diagram of the processing unit in the base station according to one embodiment of the application；
Specific embodiment
It is described in further detail below in conjunction with technical solution of the attached drawing to the application, 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 the transmission of first wireless signal according to the application, such as 1 institute of attached drawing
Show.In attached drawing 1, base station N1 is the maintenance base station of the serving cell of UE U2.Wherein, the step of box F0 is identified into box F4
It is optional.
ForBase station N1, the second signaling is received by return link in step slo；The first letter is sent in step s 11
It enables；In step s 12 in the generator of first time interval start time initialization First ray；Institute is determined in step s 13
State First ray；Third signaling is sent by return link in step S14；The first reference signal is sent in step S15；?
The first wireless signal is sent in step S16；Second wireless singal is received in step S17.
ForUE U2, the first signaling is received in step S20；In the step s 21 at the beginning of first time interval start time
The generator of beginningization First ray；The First ray is determined in step S22；The first reference signal is received in step S23；
The first wireless signal is received in step s 24；Second wireless singal is sent in step s 25.
In embodiment 1, first reference signal occupies first time interval in the time domain, the first time interval
Duration, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；It is described
First parameter and time-domain position of the first time interval in first time unit, and first time unit at the first time
Time-domain position in window } at least the former is related, second parameter is configurable；The first time unit continues
Time is less than or equal to 1 millisecond, and the duration of the first time window is greater than 1 millisecond；The First ray be used to generate
First reference signal；The channel parameter of the first reference signal wireless channel experienced can be used for determining described
The channel parameter of one wireless signal wireless channel experienced；First reference signal is used for determining second wireless communication
Number, the second wireless singal includes CSI；{ time domain position of the first time interval in the first time unit
Set, second parameter } at least one of be used for determining that the first numerical value, first numerical value are the lifes of the First ray
The initial value grown up to be a useful person；{ time-domain position of the first time interval in the first time unit, second ginseng
Number } at least one of be used for determining the first variable；First numerical value is related to first linear variable displacement, and described first
The V power that linearly dependent coefficient between numerical value and first variable is 2, first variable are equal to the second variable and third
The product of variable, the V are less than 30 nonnegative integer；First numerical value and third parameter are linearly related, first number
The linearly dependent coefficient of value and the third parameter is 1.The third parameter is configurable.
As a sub- embodiment, first signaling is to authorize (Grant) for the downlink of first wireless signal
DCI.
As a sub- embodiment, first signaling be used to determine second parameter from the second parameter sets,
Second parameter sets are configured by high-level signaling.
As an accompanying Examples of the sub- embodiment, the high-level signaling is the exclusive RRC signaling of UE.
As an accompanying Examples of the sub- embodiment, the high-level signaling is the exclusive RRC signaling of cell.
Embodiment 2
Embodiment 2 illustrates the signal of a first time interval and the first time unit according to the application
Figure, as shown in Fig. 2.In attached drawing 2, the first time interval is located in the first time unit in time domain.Described first
Time quantum time domain include T time interval, and the first time interval be in the T time interval one of.Its
Middle T is positive integer.
As a sub- embodiment, the T time interval is continuous in the first time unit.
As a sub- embodiment, the T time interval takes the first time unit in the time domain.
As a sub- embodiment, at least there are two time interval, described two time intervals in the T time interval
Duration be different.
As a sub- embodiment, the T time interval is identical in the duration of time domain.
Embodiment 3
Embodiment 3 illustrates the signal of the first time unit and the first time window according to the application
Figure, as shown in Fig. 3.In attached drawing 3, the first time unit is located in the first time window in time domain.When described first
Between window time domain include K time quantum, and the first time unit be in the K time quantum one of.Wherein K is
Positive integer.
As a sub- embodiment, the K time quantum is continuous in the first time window.
As a sub- embodiment, the K time quantum takes the first time window in the time domain.
As a sub- embodiment, the K time quantum is identical in the duration of time domain.
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit in a user equipment, as shown in Fig. 4.In attached drawing 4,
User equipment processing unit 100 is mainly made of first processing module 101 and Second processing module 102.
First processing module 101, determines First ray；
Second processing module 102 receives the first reference signal；
In embodiment 4, first reference signal occupies first time interval in the time domain, the first time interval
Duration, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；It is described
First parameter and time-domain position of the first time interval in first time unit, and first time unit at the first time
Time-domain position in window } at least the former is related, second parameter is configurable；The first time unit continues
Time is less than or equal to 1 millisecond, and the duration of the first time window is greater than 1 millisecond；The First ray be used to generate
First reference signal.
As a sub- embodiment, the first processing module 101 also receives the first signaling；First signaling is used for
Determine second parameter.
As a sub- embodiment, the first processing module 101 is also initial in the first time interval start time
Change the generator of the First ray.
As a sub- embodiment, the Second processing module 102 also receives the first wireless signal；Described first with reference to letter
The channel parameter of number wireless channel experienced can be used for determining the letter of the first wireless signal wireless channel experienced
Road parameter.
As a sub- embodiment, the Second processing module 102 also sends second wireless singal；Described first with reference to letter
Number it is used for determining that the second wireless singal, the second wireless singal include CSI.
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in a base station equipment, as shown in Fig. 5.In attached drawing 5,
Base station equipment processing unit 200 is mainly made of third processing module 201 and fourth processing module 202.
Third processing module 201, determines First ray；
Fourth processing module 202 sends the first reference signal；
In embodiment 5, first reference signal occupies first time interval in the time domain, the first time interval
Duration, at least one of the First ray and { the first parameter, the second parameter } were relevant less than 1 millisecond；It is described
First parameter and time-domain position of the first time interval in first time unit, and first time unit at the first time
Time-domain position in window } at least the former is related, second parameter is configurable；The first time unit continues
Time is less than or equal to 1 millisecond, and the duration of the first time window is greater than 1 millisecond；The First ray be used to generate
First reference signal.
As a sub- embodiment, the fourth processing module 202 is also used to send the first wireless signal；First ginseng
The channel parameter for examining signal wireless channel experienced can be used for determining the first wireless signal wireless channel experienced
Channel parameter.
As a sub- embodiment, the fourth processing module 202 is also used to receive second wireless singal；First ginseng
It examines signal and is used for determining that the second wireless singal, the second wireless singal include CSI.
As a sub- embodiment, the first numerical value is the initial value of the generator of the First ray；{ described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 16 power, first variable be equal to the second variable and third variable product.
As a sub- embodiment, time-domain position quilt of the first time interval in the first time unit
For determining second variable, the bivariate value range is the first integer set, first integer set by
16 integers composition from 1 to 16；Second parameter is used for determining the third variable, the value model of the third variable
Enclosing is the second integer set, and second integer set is made of 512 odd numbers from 1 to 1023.
As a sub- embodiment, the third processing module 201 is also used to send the first signaling；The first signaling quilt
For determining second parameter.
As a sub- embodiment, the third processing module 201 is for sending the first signaling, and the third handles mould
Block 201 is also used at least one of:
- receives the second signaling by return link；Second signaling is by the base station for determining second ginseng
Number.
- sends third signaling by return link；The third signaling is by the recipient of the third signaling for determining
Second parameter.
As an accompanying Examples of the sub- embodiment, first signaling is high-level signaling.
As an accompanying Examples of the sub- embodiment, first signaling is used for from second parameter sets
Determine second parameter.And second parameter sets are configured by high-level signaling.
As an example of the accompanying Examples, the high-level signaling is sent by the base station equipment by space interface signaling
To user equipment.
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 and terminal in the application include but unlimited
In mobile phone, tablet computer, notebook, vehicular communication equipment, wireless sensor, card of surfing Internet, internet-of-things terminal, RFID terminal, NB-
IOT terminal, MTC (Machine Type Communication, machine type communication) terminal, (enhanced MTC increases eMTC
Strong MTC) terminal, data card, card of surfing Internet, vehicular communication equipment, inexpensive mobile phone, the wireless communications such as inexpensive tablet computer set
It is standby.Base station in the application includes but is not limited to macrocell base stations, microcell base station, Home eNodeB, the channel radios such as relay base station
Believe equipment.
The above, the only preferred embodiment of the application, are not intended to limit the protection scope of the application.It is all
Within spirit herein and principle, any modification made, equivalent replacement, improve etc., it should be included in the protection of the application
Within the scope of.
Claims (23)
1. a kind of method in user equipment for being used for low latency communication, wherein include the following steps:
Step A. determines First ray；
Step B. receives the first reference signal；
Wherein, first reference signal occupies first time interval, the duration of the first time interval in the time domain
Less than 1 millisecond, at least one of the First ray and { the first parameter, the second parameter } are relevant；First parameter
Time-domain position of the first time interval in first time unit, and first time unit in first time window when
Domain position } at least the former is related, second parameter is configurable；The duration of the first time unit is less than
Or it is equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described first
Reference signal；In { time-domain position of the first time interval in the first time unit, second parameter } extremely
It is one of few to be used for determining that the first numerical value, first numerical value are the initial values of the generator of the First ray；{ described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 V power, first variable is equal to the product of the second variable and third variable, and the V is less than 30
Nonnegative integer.
2. the method according to claim 1, wherein the step B further includes following steps:
Step B1. receives the first wireless signal；
Wherein, the channel parameter of the first reference signal wireless channel experienced can be used for determining first wireless communication
The channel parameter of number wireless channel experienced.
3. the method according to claim 1, wherein the step B further includes following steps:
Step B2. sends second wireless singal；
Wherein, first reference signal is used for determining that the second wireless singal, the second wireless singal include CSI.
4. according to claim 1 to method described in any claim in 3, which is characterized in that the step A further includes as follows
Step:
Step A0. receives the first signaling, and first signaling is used for determining second parameter.
5. according to claim 1 to method described in any claim in 3, which is characterized in that first numerical value and third
Parameter is linearly related, and the linearly dependent coefficient of first numerical value and the third parameter is 1；The third parameter is configurable
's.
6. a kind of method in base station for being used for low latency communication, wherein include the following steps:
Step A. determines First ray；
Step B. sends the first reference signal；
Wherein, first reference signal occupies first time interval, the duration of the first time interval in the time domain
Less than 1 millisecond, at least one of the First ray and { the first parameter, the second parameter } are relevant；First parameter
Time-domain position of the first time interval in first time unit, and first time unit in first time window when
Domain position } at least the former is related, second parameter is configurable；The duration of the first time unit is less than
Or it is equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described first
Reference signal；In { time-domain position of the first time interval in the first time unit, second parameter } extremely
It is one of few to be used for determining that the first numerical value, first numerical value are the initial values of the generator of the First ray；{ described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 V power, first variable is equal to the product of the second variable and third variable, and the V is less than 30
Nonnegative integer.
7. according to the method described in claim 6, it is characterized in that, the step B further includes following steps:
Step B1. sends the first wireless signal；
Wherein, the channel parameter of the first reference signal wireless channel experienced can be used for determining first wireless communication
The channel parameter of number wireless channel experienced.
8. according to the method described in claim 6, it is characterized in that, the step B further includes following steps:
Step B2. receives second wireless singal；
Wherein, first reference signal is used for determining that the second wireless singal, the second wireless singal include CSI.
9. the method according to any claim in claim 6 to 8, which is characterized in that the step A further includes as follows
Step:
Step A0. sends the first signaling, and first signaling is used for determining second parameter.
10. according to method described in right any in claim 6 to 8, which is characterized in that the step A further includes walking as follows
It is rapid:
Step A1. receives the second signaling by return link；
Wherein, second signaling is by the base station for determining second parameter.
11. the method according to any claim in claim 6 to 8, which is characterized in that the step A further include as
Lower step:
Step A2. sends third signaling by return link；
Wherein, the third signaling is by the recipient of the third signaling for determining second parameter.
12. the method according to any claim in claim 6 to 8, which is characterized in that first numerical value and third
Parameter is linearly related, and the linearly dependent coefficient of first numerical value and the third parameter is 1；The third parameter is configurable
's.
13. a kind of user equipment for being used for low latency communication, wherein including following module:
First processing module determines First ray；
Second processing module receives the first reference signal；
Wherein, first reference signal occupies first time interval, the duration of the first time interval in the time domain
Less than 1 millisecond, at least one of the First ray and { the first parameter, the second parameter } are relevant；First parameter
Time-domain position of the first time interval in first time unit, and first time unit in first time window when
Domain position } at least the former is related, second parameter is configurable；The duration of the first time unit is less than
Or it is equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described first
Reference signal；In { time-domain position of the first time interval in the first time unit, second parameter } extremely
It is one of few to be used for determining that the first numerical value, first numerical value are the initial values of the generator of the First ray；{ described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 V power, first variable is equal to the product of the second variable and third variable, and the V is less than 30
Nonnegative integer.
14. user equipment according to claim 13, which is characterized in that the first processing module also receives the first letter
It enables；First signaling is used for determining second parameter.
15. user equipment described in 3 or 14 according to claim 1, which is characterized in that the Second processing module also receives first
Wireless signal；The channel parameter of the first reference signal wireless channel experienced can be used for determining first wireless communication
The channel parameter of number wireless channel experienced.
16. user equipment described in 3 or 14 according to claim 1, which is characterized in that the Second processing module also sends second
Wireless signal；First reference signal is used for determining that the second wireless singal, the second wireless singal include CSI.
17. user equipment described in 3 or 14 according to claim 1, which is characterized in that first numerical value and third parameter are linear
The linearly dependent coefficient of correlation, first numerical value and the third parameter is 1；The third parameter is configurable.
18. a kind of base station equipment for being used for low latency communication, wherein including following module:
Third processing module, determines First ray；
Fourth processing module sends the first reference signal；
Wherein, first reference signal occupies first time interval, the duration of the first time interval in the time domain
Less than 1 millisecond, at least one of the First ray and { the first parameter, the second parameter } are relevant；First parameter
Time-domain position of the first time interval in first time unit, and first time unit in first time window when
Domain position } at least the former is related, second parameter is configurable；The duration of the first time unit is less than
Or it is equal to 1 millisecond, the duration of the first time window is greater than 1 millisecond；The First ray be used to generate described first
Reference signal；In { time-domain position of the first time interval in the first time unit, second parameter } extremely
It is one of few to be used for determining that the first numerical value, first numerical value are the initial values of the generator of the First ray；{ described first
Time-domain position of the time interval in the first time unit, second parameter } at least one of be used for determining
One variable；First numerical value is related to first linear variable displacement, the line between first numerical value and first variable
Property related coefficient be 2 V power, first variable is equal to the product of the second variable and third variable, and the V is less than 30
Nonnegative integer.
19. base station equipment according to claim 18, which is characterized in that the third processing module also sends the first letter
It enables；First signaling is used for determining second parameter.
20. base station equipment described in 8 or 19 according to claim 1, which is characterized in that the third processing module is also used to following
At least one:
- receives the second signaling by return link；Second signaling is by the base station for determining second parameter；
- sends third signaling by return link；The third signaling is by the recipient of the third signaling for described in determination
Second parameter.
21. base station equipment described in 8 or 19 according to claim 1, which is characterized in that the fourth processing module also sends first
Wireless signal；The channel parameter of the first reference signal wireless channel experienced can be used for determining first wireless communication
The channel parameter of number wireless channel experienced.
22. base station equipment described in 8 or 19 according to claim 1, which is characterized in that the fourth processing module also receives second
Wireless signal；First reference signal is used for determining that the second wireless singal, the second wireless singal include CSI.
23. base station equipment described in 8 or 19 according to claim 1, which is characterized in that first numerical value and third parameter are linear
The linearly dependent coefficient of correlation, first numerical value and the third parameter is 1；The third parameter is configurable.
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| CN201610547491.0A CN107623564B (en) | 2016-07-13 | 2016-07-13 | A kind of method and apparatus in wireless communication |
| CN201910022525.8A CN109743145B (en) | 2016-07-13 | 2016-07-13 | Method and device in wireless communication |
| PCT/CN2017/091920 WO2018010586A1 (en) | 2016-07-13 | 2017-07-06 | Method and apparatus in wireless communications |
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| WO2019191971A1 (en) * | 2018-04-04 | 2019-10-10 | 华为技术有限公司 | Data transmission method, terminal device, and network device |
| CN115021882A (en) * | 2020-07-20 | 2022-09-06 | 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 |
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| KR101491964B1 (en) * | 2007-07-30 | 2015-03-09 | 삼성전자주식회사 | Method and system for transmitting and receiving different signal types in communication systems |
| CN102158449B (en) * | 2010-02-12 | 2014-03-12 | 华为技术有限公司 | Method, base station and terminal for generating reference signal |
| CN103974418B (en) * | 2013-01-24 | 2019-04-05 | 中兴通讯股份有限公司 | DMRS processing method and processing device |
| CN104468030B (en) * | 2014-08-26 | 2018-06-05 | 上海华为技术有限公司 | A kind of data transmission method, user equipment and base station |
| WO2016064039A1 (en) * | 2014-10-21 | 2016-04-28 | 엘지전자(주) | Data transmission/reception method in wireless communication system that supports low latency, and apparatus therefor |
| CN104601286B (en) * | 2015-01-16 | 2018-03-27 | 华为技术有限公司 | A kind of method of reporting status information of channel, user equipment and system |
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| CN102036297A (en) * | 2010-12-24 | 2011-04-27 | 大唐移动通信设备有限公司 | Method and equipment for transmitting PDCCH, method and equipment for detecting PDCCH, and system |
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| CN109743145B (en) | 2021-07-27 |
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Effective date of registration: 20230720 Address after: 518040 unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Xiangmihu street, Futian District, Shenzhen, Guangdong Province Patentee after: Honor Device Co.,Ltd. Address before: Room A2117, Building B, 555 Dongchuan Road, Minhang District, Shanghai, 200240 Patentee before: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY Co.,Ltd. |