CN105636221B - A kind of LAA dispatching method and device - Google Patents
A kind of LAA dispatching method and device Download PDFInfo
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- CN105636221B CN105636221B CN201410616525.8A CN201410616525A CN105636221B CN 105636221 B CN105636221 B CN 105636221B CN 201410616525 A CN201410616525 A CN 201410616525A CN 105636221 B CN105636221 B CN 105636221B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention proposes a kind of LAA dispatching method and devices.In step 1, UE receives the first signaling and the second signaling, and the first subframe of the first signaling instruction first carrier is configured as first structure, and the second signaling indicates the first COT on first carrier.In step 2, UE judges whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes the first operation；If the first subframe is the subframe except the first COT, the second operation is executed.Wherein, first carrier is deployed in unlicensed spectrum.As one embodiment, the first operation is that reception wireless signal and the second operation assume that serving cell keeps zero transmission power in the first subframe of first carrier and first structure is downlink subframe in the first subframe of first carrier.The invention enables introducing the later LTE LAA of LBT technology to be compatible with traditional downlink semi-persistent scheduling and the longer uplink scheduling of delay, complicated standard change is avoided.
Description
Technical field
The present invention relates to the schemes that unlicensed spectrum communication is utilized in wireless communication system, more particularly to based on LTE
The communication means for unlicensed spectrum (Unlicensed Spectrum) of (Long Term Evolution, long term evolution)
And device.
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) LTE system
In, data transmission can only occur on authorization frequency spectrum, however as increased dramatically for portfolio, especially in some urban areas,
Authorization frequency spectrum is likely difficult to meet the needs of portfolio.62 plenary sessions of 3GPP RAN discuss a new research topic, i.e.,
The comprehensive research (RP-132085) of unlicensed spectrum, main purpose is the Non- of LTE of the research and utilization in unlicensed spectrum
Standalone (dependent) deployment, so-called Non-standalone refer to that frequency spectrum is wanted and authorized in the communication in unlicensed spectrum
On serving cell it is associated.One intuitive method is the CA (Carrier reused in existing system as far as possible
Aggregation, carrier wave polymerization) concept, that is, be deployed in authorization frequency spectrum on serving cell as PCC (Primary
Component Carrier, main carrier), the serving cell in unlicensed spectrum is deployed in as SCC (Secondary
Component Carrier, secondary carrier).For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, LBT
(Listen Before Talk, first listen to and send afterwards) technology can effectively avoid the interference between LTE system and other systems
And the interference inside LTE system between different operators equipment.In RAN#64 plenary session (seminar), in unlicensed spectrum
Communication by Uniform Name be LAA (License Assisted Access, authorization frequency spectrum auxiliary access).
For LTE LAA, a problem in need of consideration is wireless transmission of the base station in current subframe regulation goal subframe
When, the wireless transmission that (due to the introducing of LBT technology) may be unable to ensure in target-subframe really occurs.For example, traditional LTE
The downlink that base station is transmitted using mode property dispatching cycle of semi-persistent scheduling (SPS, Semi Persistent Scheduling)
Signal.In another example traditional LTE base station uses DCI (Downlink Control Information, Downlink Control Information) lattice
Formula 1A configures RACH (Random Access Channel, random access channel) pilot tone (Preamble) parameter and then triggers
When PRACH (Physical Random Access Channel, Physical Random Access Channel) is transmitted, phase is compared in PRACH transmission
PDCCH (Physical Downlink Control Channel, the Physical Downlink Control Channel) transmission answered at least postpones 6
Subframe, and it is suitble to uplink after supporting the base station of LBT that may not be able to ensure to delay 6 (or more) subframes.
In view of the above-mentioned problems, the invention discloses a kind of LAA dispatching method and devices.
Summary of the invention
The invention discloses a kind of methods in UE (User Equipment, user equipment), wherein including walking as follows
It is rapid:
Step A. receives the first signaling and the second signaling, and the first subframe of the first signaling instruction first carrier is configured as
First structure, the second signaling indicate the first COT (Channel Occupancy Time, Channel holding time) on first carrier
Step B. judges whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes the first behaviour
Make；If the first subframe is the subframe except the first COT, the second operation is executed.
Wherein, first carrier is deployed in unlicensed spectrum, the second signaling be before the first subframe the last time receive
The COT being used to indicate on first carrier signaling.The COT is the time window for including positive integer continuous subframes.First COT
Including K continuous subframes, the K is positive integer.First operation be in the first subframe of first carrier receive wireless signal and
Second operation assumes that serving cell keeps zero transmission power in the first subframe of first carrier and first structure is { downlink
Frame, special subframe } one of or first operation be in the first subframe of first carrier send wireless signal and second behaviour
Work is that holding zero sends power in the first subframe of first carrier and first structure is { sub-frame of uplink, special subframe, D2D
One of frame }.
The special subframe is the subframe for simultaneously including uplink and downlink timeslot.As one embodiment, the special subframe is
Special subframe in TDD (Time Division Duplex, time division duplex) LTE.D2D (Device to Device, the dress
Set to device) subframe be for D2D communication subframe.The serving cell is serving cell of the UE on first carrier.
As one embodiment, the first signaling is to be used to indicate the SIB of cell frame structure (System Information Block is
System block of information) signaling.As one embodiment, the first signaling is the physical layer signaling for dynamic configuration cell frame structure.Make
For one embodiment, the first signaling is the high-level signaling for configuring the subframe that can be used as D2D transmission.As one embodiment,
Second signaling is physical layer signaling.As one embodiment, the hypothesis serving cell is protected in the first subframe of first carrier
Holding zero transmission power is: closing wireless receiver in the first subframe of first carrier.As one embodiment, the hypothesis service
Cell keeps zero to send power in the first subframe of first carrier: being the first subframe monitoring reception signal in first carrier
Power is as interference noise power.As one embodiment, the hypothesis serving cell is protected in the first subframe of first carrier
Holding zero transmission power is: receiving the downlink signal of neighboring community in the first subframe of first carrier.As one embodiment, first
Signaling and the second signaling are transmitted on the carrier wave for being deployed in authorization frequency spectrum.
The essence of above-mentioned aspect, which is base station, configures COT by downlink signaling to assist indicating being in scheduled target-subframe
No transmission actual transmissions avoid and modify traditional scheduling timing, while compatible LBT operation.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. receives third signaling, and third signaling triggers the transmission of the wireless signal.
Wherein, third signaling is high-level signaling or physical layer signaling.
As one embodiment, third signaling is RRC (Radio Resource Control, wireless heterogeneous networks) layer letter
It enables.As one embodiment, third signaling is MAC (Medium Access Control, centre access control)
Specifically, according to an aspect of the present invention, which is characterized in that the first operation is the first subframe in first carrier
Upper transmission wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence
Column, the first subframe is to be configured with PRACH by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
The subframe of resource.
As one embodiment, third signaling is DCI format 1A.As one embodiment, the high-level signaling is
PRACH-ConfigSCell-r10IE (Information Element, information unit).
Specifically, above-mentioned aspect according to the present invention, which is characterized in that the step B further includes following steps:
Step B1. sends the wireless signal in the second subframe of first carrier.
Wherein, the first subframe is the subframe except the first COT, and the second subframe is that first after prepared subframe is high-rise
Signal deployment PRACH resource and the subframe for belonging to COT, the prepared subframe is 1 subframe of kth after the first subframe, institute
Stating k1 is 0 or positive integer.
The essence of above-mentioned aspect is that the transmission subframe that base station sends the RACH pilot tone of DCI triggering depends on the configuration of COT,
If belonging to the COT of base station configuration according to the target-subframe (i.e. the first subframe) of the RACH pilot tone scheduling timing of traditional LTE,
RACH pilot tone then is sent according to the RACH pilot tone scheduling timing of traditional LTE, otherwise description according to above-mentioned aspect is in alternative subframe
RACH pilot tone is sent in (i.e. the second subframe).Second subframe is predetermined, therefore is not needed additionally to send downlink signaling and be referred to
Show, (comparing with DCI scheduling RACH pilot tone is retransmitted) saves signaling overheads, while reducing the delay of RACH pilot tone.
As one embodiment, COT belonging to the second subframe is by down physical layer signal deployment.
As one embodiment, the k1 is 0, i.e., the described prepared subframe is the first subframe.It is described as one embodiment
K1 is fixed constant.
Specifically, according to an aspect of the present invention, which is characterized in that the first operation is the first subframe in first carrier
Upper reception wireless signal, third signaling are semi-persistent scheduling signalings, and the wireless signal includes at least one of:
- characteristic sequence
- block of information.
As one embodiment, the characteristic sequence include { ZC (ZadOff-Chu) sequence, pseudo-random sequence } in extremely
Few one kind.
As one embodiment, the characteristic sequence is used at least one of:
The side-.UE obtains down-going synchronous
The measurement of-down channel
- cell identification.
Specifically, according to an aspect of the present invention, which is characterized in that the starting subframe of COT is corresponding configuration signaling
Transmit subframe.
According to above-mentioned aspect, the first COT be include the second signaling transmission subframe and thereafter K-1 continuous subframes when
Between window.As one embodiment, the number of sub-frames in COT is indicated by corresponding configuration signaling.
The invention discloses a kind of methods in base station, wherein includes the following steps:
Step A. sends the first signaling and the second signaling, and the first subframe of the first signaling instruction first carrier is configured as
First structure, the second signaling indicate the first COT on first carrier
Step B. judges whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes the first behaviour
Make；If the first subframe is the subframe except the first COT, the second operation is executed.
Wherein, first carrier is deployed in unlicensed spectrum, and the second signaling is the last before the first subframe sends
It is used to indicate the signaling of the COT on first carrier.The COT is the time window for including positive integer continuous subframes.First COT packet
K continuous subframes are included, the K is positive integer.First operation is that wireless signal and the are sent in the first subframe of first carrier
Two operation be in the first subframe of first carrier keep serving cell zero transmission power and first structure be downlink subframe,
Special subframe } one of or first operation be in the first subframe of first carrier receive wireless signal and second operation
Assume that the target UE of the second signaling keeps zero transmission power in the first subframe of first carrier and first structure is { uplink
One of frame, special subframe, D2D subframe }.
As one embodiment, the base station only maintains the i.e. described serving cell of a cell in first carrier.As one
A embodiment, the base station maintain multiple cells on first carrier, and the serving cell is one of them, the serving cell
It is the transmission cell of the wireless signal.As one embodiment, the second signaling is cell common signaling, the target of the second signaling
UE is the UE under all serving cell coverings for being in the second signaling.As one embodiment, the second signaling is UE specific, the
The target UE of two signalings is a UE.As one embodiment, the target UE for assuming the second signaling is the of first carrier
Zero transmission power is kept in one subframe is: closing wireless receiver in the first subframe of first carrier.As one embodiment,
The target UE for assuming the second signaling keeps zero to send power in the first subframe of first carrier: the of first carrier
Received signal power is monitored in one subframe as interference noise power.As one embodiment, the mesh for assuming the second signaling
Mark UE keeps zero to send power in the first subframe of first carrier: receiving in the first subframe of first carrier from second
The transmission signal of other UE except the target UE of signaling, the second signaling are UE specific.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends third signaling, and third signaling triggers the transmission of the wireless signal.
Wherein, third signaling is high-level signaling or physical layer signaling.
Specifically, according to an aspect of the present invention, which is characterized in that the first operation is the first subframe in first carrier
Upper reception wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence
Column, the first subframe is to be configured with PRACH by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
The subframe of resource.
Specifically, above-mentioned aspect according to the present invention, which is characterized in that the step B further includes following steps:
Step B1. receives the wireless signal in the second subframe of first carrier.
Wherein, the first subframe is the subframe except the first COT, and the second subframe is that first after prepared subframe is high-rise
Signal deployment PRACH resource and the subframe for belonging to COT, the prepared subframe is 1 subframe of kth after the first subframe, institute
Stating k1 is 0 or positive integer.
As one embodiment, COT belonging to the second subframe is by down physical layer signal deployment.
Specifically, according to an aspect of the present invention, which is characterized in that the first operation is the first subframe in first carrier
Upper transmission wireless signal, third signaling are semi-persistent scheduling signalings, and the wireless signal includes at least one of:
- characteristic sequence
- block of information.
As one embodiment, the wireless signal is continuously, that is, to occupy continuous subcarrier on frequency domain.
Specifically, according to an aspect of the present invention, which is characterized in that the starting subframe of COT is corresponding configuration signaling
Transmit subframe.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving the first signaling and the second signaling, the first signaling indicates the first subframe quilt of first carrier
It is configured to first structure, the second signaling indicates the first COT on first carrier
Second module: it for judging whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes
First operation；If the first subframe is the subframe except the first COT, the second operation is executed.
Wherein, first carrier is deployed in unlicensed spectrum, the second signaling be before the first subframe the last time receive
The COT being used to indicate on first carrier signaling.The COT is the time window for including positive integer continuous subframes.First COT
Including K continuous subframes, the K is positive integer.First operation be in the first subframe of first carrier receive wireless signal and
Second operation assumes that serving cell keeps zero transmission power in the first subframe of first carrier and first structure is { downlink
Frame, special subframe } one of or first operation be in the first subframe of first carrier send wireless signal and second behaviour
Work is that holding zero sends power in the first subframe of first carrier and first structure is { sub-frame of uplink, special subframe, D2D
One of frame }.
As one embodiment, above equipment is characterized in that:
First module is also used to receive third signaling, and the second module is also used to send institute in the second subframe of first carrier
State wireless signal.
Wherein, third signaling triggers the transmission of the wireless signal.First operation is in the first subframe of first carrier
Wireless signal is sent, third signaling is the DCI for triggering random access sequence, and the wireless signal is random access sequence,
First subframe is to be configured with PRACH money from first after 5 subframes of transmission subframe delay of third signaling by high-level signaling
The subframe in source.First subframe is the subframe except the first COT, and the second subframe is first after prepared subframe by high-level signaling
It is configured with PRACH resource and belongs to the subframe of COT, the prepared subframe is 1 subframe of kth after the first subframe, the k1
It is 0 or positive integer.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for sending the first signaling and the second signaling, the first signaling indicates the first subframe quilt of first carrier
It is configured to first structure, the second signaling indicates the first COT on first carrier
Second module: it for judging whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes
First operation；If the first subframe is the subframe except the first COT, the second operation is executed.
Wherein, first carrier is deployed in unlicensed spectrum, and the second signaling is the last before the first subframe sends
It is used to indicate the signaling of the COT on first carrier.The COT is the time window for including positive integer continuous subframes.First COT packet
K continuous subframes are included, the K is positive integer.First operation is that wireless signal and the are sent in the first subframe of first carrier
Two operation be in the first subframe of first carrier keep serving cell zero transmission power and first structure be downlink subframe,
Special subframe } one of or first operation be in the first subframe of first carrier receive wireless signal and second operation
Assume that the target UE of the second signaling keeps zero transmission power in the first subframe of first carrier and first structure is { uplink
One of frame, special subframe, D2D subframe }.
As one embodiment, above equipment is characterized in that, the first module is also used to send third signaling, the second module
It is also used to receive the wireless signal in the second subframe of first carrier.
Wherein, third signaling triggers the transmission of the wireless signal.First operation is in the first subframe of first carrier
Wireless signal is received, third signaling is the DCI for triggering random access sequence, and the wireless signal is random access sequence,
First subframe is to be configured with PRACH money from first after 5 subframes of transmission subframe delay of third signaling by high-level signaling
The subframe in source.First subframe is the subframe except the first COT, and the second subframe is first after prepared subframe by high-level signaling
It is configured with PRACH resource and belongs to the subframe of COT, the prepared subframe is 1 subframe of kth after the first subframe, the k1
It is 0 or positive integer.
Target may be unable to ensure in the wireless transmission in the target-subframe of current subframe scheduling LAA carrier wave for base station
This problem really occurs for the wireless transmission in subframe, and the invention proposes the dispatching method of LAA a kind of and device, base station is sent
Signaling indicates that COT, UE assist determining the wireless transmission of base station triggers whether in target-subframe implementation using COT.As a reality
Example is applied, base station is sent by the RACH pilot tone that PDCCH triggers target-subframe, and UE is deferred in COT subframe and sends.The invention enables
Traditional downlink semi-persistent scheduling and the longer uplink scheduling of delay can be compatible with by introducing the later LTE LAA of LBT technology, be kept away
Complicated standard change is exempted from, has saved the dispatch expense of RACH pilot tone while reducing delay.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart according to an embodiment of the invention that uplink is carried out on LAA carrier wave；
Fig. 2 shows according to an embodiment of the invention on LAA carrier wave carries out the flow chart of downlink transfer；
Fig. 3 shows transmission time sequence figure according to an embodiment of the invention；
Fig. 4 shows LAA carrier wave timing diagram according to an embodiment of the invention；
Fig. 5 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
Fig. 6 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart that uplink is carried out on LAA carrier wave, as shown in Fig. 1.In attached drawing 1, base station
The serving cell of N1 maintenance UE U2.The step wherein identified in the box of F1 is optional step.
For base station N1, the first signaling and the second signaling are sent in step s 11.The first subframe is judged in step s 12
Whether first COT is belonged to.If the first subframe belongs to the first COT, connect in the first subframe of first carrier in the step s 120
Receive wireless signal；If the first subframe is the subframe except the first COT, (including UE U2) is assumed in step S121
The target UE of second signaling keeps zero transmission power in the first subframe of first carrier.
For UE U2, the first signaling and the second signaling are received in the step s 21.The first subframe is judged in step S22 is
It is no to belong to the first COT.If the first subframe belongs to the first COT, sent in the first subframe of first carrier in step S220
Wireless signal；If the first subframe is the subframe except the first COT, protected in the first subframe of first carrier in step S221
Hold zero transmission power.
In embodiment 1, the first subframe of the first signaling instruction first carrier is configured as first structure, the instruction of the second signaling
The first COT on first carrier.First carrier is deployed in unlicensed spectrum, and the second signaling is the last before the first subframe
Base station N1 is sent to the signaling for the COT of UE U2 being used to indicate on first carrier.The COT be include the continuous son of positive integer
The time window of frame.First COT includes K continuous subframes, and the K is positive integer.First structure be sub-frame of uplink, special subframe,
One of D2D subframe }.
As the sub- embodiment 1 of embodiment 1, base station N1 sends third signaling in step s 110, sends in step s 13
4th signaling receives wireless signal in the second subframe of first carrier in step S14.UE U2 is received in step S210
Third signaling receives the 4th signaling in step S23, sends wireless communication in the second subframe of first carrier in step s 24
Number.Wherein, third signaling is the DCI for triggering random access sequence, and the wireless signal is random access sequence, the first son
Frame is the son for being configured with PRACH resource by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
Frame (i.e. the first subframe is the 6th subframe after the transmission subframe of third signaling earliest).4th signaling indicates the second subframe institute
The COT of category.First subframe is the subframe except the first COT, and the second subframe is first after prepared subframe by high-level signaling
It is configured with PRACH resource and belongs to the subframe of COT, the prepared subframe is 1 subframe of kth after the first subframe, the k1
It is 0 or positive integer.
In the sub- embodiment 1, the 4th signaling is to meet the signaling of following two condition occurred earliest:
The base station-N1 is sent to the COT's for configuring first carrier of UE U2 after the transmission subframe of the second signaling
Signaling
It include that at least one is configured for PRACH money again while after the prepared subframe in the COT that-is configured
The subframe in source.
As the sub- embodiment 2 of embodiment 1, the K is 4 or 10.
As the sub- embodiment 3 of embodiment 1, the signaling in embodiment 1 is uploaded in the carrier wave for being deployed in authorization frequency spectrum
It is defeated.
Embodiment 2
Embodiment 2 illustrates the flow chart that downlink transfer is carried out on LAA carrier wave, as shown in Fig. 2.In attached drawing 2, base station
N3 safeguards second community, and second community is serving cell of the UE U4 on first carrier.
For base station N3, in step S31, the first signaling and the second signaling are sent.The first subframe is judged in step s 32
Whether first COT is belonged to.If the first subframe belongs to the first COT, sent out in the first subframe of first carrier in step s 320
Send wireless signal；If the first subframe is the subframe except the first COT, in step S321 in the first subframe of first carrier
Keep the zero of second community to send power (i.e. second community does not send wireless signal in the first subframe of first carrier).
For UE U4, in step S41, the first signaling and the second signaling are received.The first subframe is judged in step S42
Whether first COT is belonged to.If the first subframe belongs to the first COT, connect in the first subframe of first carrier in the step s 420
Receive wireless signal；If the first subframe is the subframe except the first COT, assume second community in first carrier in step S421
The first subframe on keep zero send power.
In embodiment 2, the first subframe of the first signaling instruction first carrier is configured as first structure, the instruction of the second signaling
The first COT on first carrier.First carrier is deployed in unlicensed spectrum, and the second signaling is the last before the first subframe
Base station N3 is sent to the signaling for the COT of UE U4 being used to indicate on first carrier.The COT be include the continuous son of positive integer
The time window of frame.First COT includes K continuous subframes, and the K is positive integer.First structure is { downlink subframe, special subframe }
One of.
As the sub- embodiment 1 of embodiment 2, the wireless signal is downlink reference signal (RS, Reference
Signal).The reference signal refers to signal known to recipient and sender.An implementation as the reference signal
Example, the reference signal is PSS (Primary Synchronization Sequence, main synchronizing sequence) and SSS
(Secondary Synchronization Sequence, secondary synchronization sequences).As one embodiment of the reference signal,
The reference signal is CSI-RS (Channel Status Indicator Reference Signal, channel information instruction ginseng
Examine signal).
Embodiment 3
Embodiment 3 illustrates transmission time sequence figure, as shown in Fig. 3.In attached drawing 3, oblique line grid identifies the biography of the second signaling
Defeated subframe, backslash grid identify the subframe in the first COT.
In embodiment 3, first carrier is deployed in unlicensed spectrum, and the second carrier wave is deployed in authorization frequency spectrum, and the second signaling exists
It is transmitted on second carrier wave, the transmission subframe of the second signaling is the first COT (including subframe S0~subframe SK-1K subframe)
One subframe (i.e. subframe S0)。
As the sub- embodiment 1 of embodiment 3, base station subframe S in the first COT on a second carrier0Except subframe in
The transmittable downlink signaling for being used to indicate COT on first carrier.For example, downlink signaling is sent on subframe S1 indicates given OCT,
The given OCT includes subframe S1~subframe SK-1K-1 subframe.
Embodiment 4
Embodiment 4 illustrates LAA carrier wave timing diagram, as shown in Fig. 4.In attached drawing 4, bold box mark is configured for
The subframe of PRACH resource, oblique line grid identify the subframe in the first COT, and backslash grid identifies the subframe in the 2nd COT, erect
Line identifies the 3rd COT.
Base station sends the first signaling, the second signaling and third signaling first, then judges whether the first subframe belongs to first
COT, the first subframe are the subframes except the first COT, and base station assumes first subframe of the target UE in first carrier of the second signaling
It is upper to keep zero to send power.Then base station receives wireless signal in the second subframe of first carrier.
UE receives the first signaling, the second signaling and third signaling first, then judges whether the first subframe belongs to first
COT, the first subframe are the subframes except the first COT, and UE keeps zero transmission power in the first subframe of first carrier.UE is then
Wireless signal is sent in the second subframe of first carrier.
In embodiment 4, the first subframe of the first signaling instruction first carrier is configured as first structure, the instruction of the second signaling
The first COT on first carrier.Third signaling is the DCI for triggering random access sequence, and the wireless signal is to connect at random
Enter sequence.First carrier is deployed in unlicensed spectrum, and the second signaling is that the last base station is sent to UE before the first subframe
The COT being used to indicate on first carrier signaling.The COT is the time window for including positive integer continuous subframes.First COT
Including K continuous subframes, the K is positive integer.First structure is one of { sub-frame of uplink, special subframe, D2D subframe }.
In embodiment 4, the first subframe is high-rise from first after 5 subframes of transmission subframe delay of third signaling
The signal deployment subframe of PRACH resource (i.e. the first subframe is the 6th subframe after the transmission subframe of third signaling earliest).
Second subframe (i.e. subframe P1) it is that first after prepared subframe is configured with PRACH resource by high-level signaling and belongs to COT's
Subframe, the second subframe belong to the 2nd COT in attached drawing 4, and the prepared subframe is 1 subframe of kth after the first subframe, described
K1 is 0 or positive integer.
In embodiment 4, the first COT includes subframe Q0~subframe QK-1K subframe, the 2nd COT includes subframe P0~subframe
PL-1L subframe, the L is positive integer.
In embodiment 4, although the 3rd COT before the 2nd COT, does not wherein include the son for being configured with PRACH resource
Frame, therefore UE cannot send the wireless signal in the 3rd COT.
As the sub- embodiment 1 of embodiment 4, the prepared subframe is the first subframe, i.e., the described k1 is 0.
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in UE, as shown in Fig. 5.In attached drawing 5, UE processing unit
300 are made of receiving module 301 and processing module 302.
Receiving module 301 indicates the first subframe of first carrier for receiving the first signaling and the second signaling, the first signaling
It is configured as first structure, the second signaling indicates the first COT on first carrier.Processing module 302 is for judging the first subframe
Whether belong to the first COT, if the first subframe belongs to the first COT, executes the first operation；If the first subframe be the first COT it
Outer subframe executes the second operation.
In embodiment 5, first carrier is deployed in unlicensed spectrum, the second signaling be before the first subframe the last time connect
The signaling of the COT being used to indicate on first carrier received.The COT is the time window for including positive integer continuous subframes.The
One COT includes K continuous subframes, and the K is positive integer.First operation is to receive wireless communication in the first subframe of first carrier
Number (the two-way dotted arrow in attached drawing 5 mutually should be into 302 direction arrow of processing module, identify wireless signal input) and second
Operation assume that serving cell is kept in the first subframe of first carrier zero send power and first structure be downlink subframe,
Special subframe } one of or the first operation be that wireless signal (in attached drawing 5 is sent in the first subframe of first carrier
Two-way dotted arrow mutually should be far from 302 direction arrow of processing module, and mark wireless signal is sent) and the second operation be first
Zero transmission power of holding and first structure are one in { sub-frame of uplink, special subframe, D2D subframe } in first subframe of carrier wave
Kind.
As the sub- embodiment 1 of embodiment 5, receiving module 301 is also used to receive third signaling.Processing module 302 is also used
In sending the wireless signal in the second subframe in first carrier.
In the sub- embodiment 1 of embodiment 5, the first module is also used to receive third signaling, and the triggering of third signaling is described wireless
The transmission of signal.First operation be that wireless signal is sent in the first subframe of first carrier, third signaling be for trigger with
Machine accesses the DCI of sequence, and the wireless signal is random access sequence, and the first subframe is the transmission subframe delay from third signaling
First after 5 subframes is configured with the subframe of PRACH resource by high-level signaling.First subframe is the son except the first COT
Frame, the second subframe are that first after prepared subframe is configured with PRACH resource by high-level signaling and belongs to the subframe of COT, institute
Stating prepared subframe is 1 subframe of kth after the first subframe, and the k1 is 0 or positive integer.The affiliated COT of second subframe by
The instruction of down physical layer signaling.Second signaling is physical layer signaling.
As the sub- embodiment 2 of embodiment 5, the starting subframe of the first COT is the transmission subframe of the second signaling.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit in a base station, as shown in Fig. 6.In attached drawing 6, base station
Processing unit 400 is made of sending module 401 and processing module 402.
Sending module 401 indicates the first subframe of first carrier for sending the first signaling and the second signaling, the first signaling
It is configured as first structure, the second signaling indicates the first COT on first carrier.Processing module 402 is for judging the first subframe
Whether belong to the first COT, if the first subframe belongs to the first COT, executes the first operation；If the first subframe be the first COT it
Outer subframe executes the second operation.
In embodiment 6, first carrier is deployed in unlicensed spectrum, and the second signaling is the last hair before the first subframe
The signaling of the COT being used to indicate on first carrier sent.The COT is the time window for including positive integer continuous subframes.First
COT includes K continuous subframes, and the K is positive integer.First operation is to send wireless signal in the first subframe of first carrier
And second operation be in the first subframe of first carrier keep serving cell zero transmission power and first structure be downlink son
Frame, special subframe } one of or first operation be in the first subframe of first carrier receive wireless signal and second behaviour
Assume that the target UE of the second signaling keeps zero transmission power in the first subframe of first carrier and first structure is { uplink
One of subframe, special subframe, D2D subframe }.
As the sub- embodiment 1 of embodiment 6, the first module is also used to send third signaling, and processing module 402 is also used to
The wireless signal is received in second subframe of first carrier.
In the sub- embodiment 1 of embodiment 6, third signaling triggers the transmission of the wireless signal.First operation is first
Wireless signal is received in first subframe of carrier wave, third signaling is the DCI for triggering random access sequence, the wireless signal
It is random access sequence, the first subframe is believed from first after 5 subframes of transmission subframe delay of third signaling by high level
Enable the subframe for being configured with PRACH resource.First subframe is the subframe except the first COT, after the second subframe is prepared subframe
First is configured with PRACH resource by high-level signaling and belongs to the subframe of COT, and the prepared subframe is after the first subframe
K1 subframe, the k1 are 0 or positive integer.
As the sub- embodiment 2 of embodiment 6, the first signaling is to be used to indicate the signaling of frame structure, or be used to indicate
The high-level signaling of subframe as D2D transmission, the second signaling is physical layer signaling.
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.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification made, equivalent replacement, improve etc., it should be included in protection of the invention
Within the scope of.
Claims (16)
1. a kind of method in user equipment, wherein include the following steps:
Step A. receives the first signaling and the second signaling, and the first subframe of the first signaling instruction first carrier is configured as first
Structure, the second signaling indicate the first COT on first carrier；
Step B. judges whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes the first operation；
If the first subframe is the subframe except the first COT, the second operation is executed；
Wherein, first carrier is deployed in unlicensed spectrum, and the second signaling is the last use received before the first subframe
In the signaling of the COT on instruction first carrier；The COT is the time window for including positive integer continuous subframes；First COT includes
K continuous subframes, the K are positive integers；First operation is the reception wireless signal and second in the first subframe of first carrier
Operation assume that serving cell is kept in the first subframe of first carrier zero send power and first structure be downlink subframe,
Special subframe } one of or first operation be in the first subframe of first carrier send wireless signal and second operation
It is that holding zero sends power in the first subframe of first carrier and first structure is { sub-frame of uplink, special subframe, D2D subframe }
One of.
2. the method according to claim 1, wherein the step A further includes following steps:
Step A1. receives third signaling, and third signaling triggers the transmission of the wireless signal；
Wherein, third signaling is high-level signaling or physical layer signaling.
3. according to the method described in claim 2, it is characterized in that, the first operation is sent in the first subframe of first carrier
Wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence, first
Subframe is to be configured with PRACH resource by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
Subframe.
4. according to the method described in claim 2, it is characterized in that, the first operation is received in the first subframe of first carrier
Wireless signal, third signaling are semi-persistent scheduling signalings, and the wireless signal includes at least one of:
- characteristic sequence；
- block of information.
5. according to the method described in claim 3, it is characterized in that, the step B further includes following steps:
Step B1. sends the wireless signal in the second subframe of first carrier；
Wherein, the first subframe is the subframe except the first COT, and the second subframe is first after prepared subframe by high-level signaling
It is configured with PRACH resource and belongs to the subframe of COT, the prepared subframe is 1 subframe of kth after the first subframe, the k1
It is 0 or positive integer.
6. the method according to claim 1, which is characterized in that the starting subframe of COT is corresponding
The transmission subframe of configuration signal.
7. a kind of method in base station, wherein include the following steps:
Step A. sends the first signaling and the second signaling, and the first subframe of the first signaling instruction first carrier is configured as first
Structure, the second signaling indicate the first COT on first carrier；
Step B. judges whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, executes the first operation；
If the first subframe is the subframe except the first COT, the second operation is executed；
Wherein, first carrier is deployed in unlicensed spectrum, the second signaling be before the first subframe it is the last send be used for
Indicate the signaling of the COT on first carrier；The COT is the time window for including positive integer continuous subframes；First COT includes K
A continuous subframes, the K are positive integers；First operation is that wireless signal and the second behaviour are sent in the first subframe of first carrier
Work be in the first subframe of first carrier keep serving cell zero transmission power and first structure be downlink subframe, it is special
Subframe } one of or the first operation be that wireless signal and the second operation are received in the first subframe of first carrier is false
The target UE of fixed second signaling is kept in the first subframe of first carrier zero send power and first structure be sub-frame of uplink,
One of special subframe, D2D subframe }.
8. the method according to the description of claim 7 is characterized in that the step A further includes following steps:
Step A1. sends third signaling, and third signaling triggers the transmission of the wireless signal；
Wherein, third signaling is high-level signaling or physical layer signaling.
9. according to the method described in claim 8, it is characterized in that, the first operation is received in the first subframe of first carrier
Wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence, first
Subframe is to be configured with PRACH resource by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
Subframe.
10. according to the method described in claim 8, it is characterized in that, the first operation is sent out in the first subframe of first carrier
Wireless signal is sent, third signaling is semi-persistent scheduling signaling, and the wireless signal includes at least one of:
- characteristic sequence；
- block of information.
11. according to the method described in claim 9, it is characterized in that, the step B further includes following steps:
Step B1. receives the wireless signal in the second subframe of first carrier；
Wherein, the first subframe is the subframe except the first COT, and the second subframe is first after prepared subframe by high-level signaling
It is configured with PRACH resource and belongs to the subframe of COT, the prepared subframe is 1 subframe of kth after the first subframe, the k1
It is 0 or positive integer.
12. the method according to any claim in claim 7 to 11, which is characterized in that the starting subframe of COT is phase
Answer the transmission subframe of configuration signal.
13. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling and the second signaling, the first subframe of the first signaling instruction first carrier is configured
For first structure, the second signaling indicates the first COT on first carrier；
Second module: for judging whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, first is executed
Operation；If the first subframe is the subframe except the first COT, the second operation is executed；
Wherein, first carrier is deployed in unlicensed spectrum, and the second signaling is the last use received before the first subframe
In the signaling of the COT on instruction first carrier；The COT is the time window for including positive integer continuous subframes；First COT includes
K continuous subframes, the K are positive integers；First operation is the reception wireless signal and second in the first subframe of first carrier
Operation assume that serving cell is kept in the first subframe of first carrier zero send power and first structure be downlink subframe,
Special subframe } one of or first operation be in the first subframe of first carrier send wireless signal and second operation
It is that holding zero sends power in the first subframe of first carrier and first structure is { sub-frame of uplink, special subframe, D2D subframe }
One of.
14. equipment according to claim 13, which is characterized in that the first module is also used to receive third signaling, the second mould
Block is also used to send the wireless signal in the second subframe of first carrier；
Wherein, third signaling triggers the transmission of the wireless signal；First operation is sent in the first subframe of first carrier
Wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence, first
Subframe is to be configured with PRACH resource by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
Subframe；First subframe is the subframe except the first COT, and the second subframe is that first after prepared subframe is configured by high-level signaling
PRACH resource and the subframe for belonging to COT, the prepared subframe are 1 subframes of kth after the first subframe, the k1 be 0 or
Person is positive integer.
15. a kind of base station equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling and the second signaling, the first subframe of the first signaling instruction first carrier is configured
For first structure, the second signaling indicates the first COT on first carrier；
Second module: for judging whether the first subframe belongs to the first COT, if the first subframe belongs to the first COT, first is executed
Operation；If the first subframe is the subframe except the first COT, the second operation is executed；
Wherein, first carrier is deployed in unlicensed spectrum, the second signaling be before the first subframe it is the last send be used for
Indicate the signaling of the COT on first carrier；The COT is the time window for including positive integer continuous subframes；First COT includes K
A continuous subframes, the K are positive integers；First operation is that wireless signal and the second behaviour are sent in the first subframe of first carrier
Work be in the first subframe of first carrier keep serving cell zero transmission power and first structure be downlink subframe, it is special
Subframe } one of or the first operation be that wireless signal and the second operation are received in the first subframe of first carrier is false
The target UE of fixed second signaling is kept in the first subframe of first carrier zero send power and first structure be sub-frame of uplink,
One of special subframe, D2D subframe }.
16. equipment according to claim 15, which is characterized in that the first module is also used to send third signaling, the second mould
Block is also used to receive the wireless signal in the second subframe of first carrier；
Wherein, third signaling triggers the transmission of the wireless signal；First operation is received in the first subframe of first carrier
Wireless signal, third signaling are the DCI for triggering random access sequence, and the wireless signal is random access sequence, first
Subframe is to be configured with PRACH resource by high-level signaling from first after 5 subframes of transmission subframe delay of third signaling
Subframe；First subframe is the subframe except the first COT, and the second subframe is that first after prepared subframe is configured by high-level signaling
PRACH resource and the subframe for belonging to COT, the prepared subframe are 1 subframes of kth after the first subframe, the k1 be 0 or
Person is positive integer.
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| CN111918404B (en) * | 2019-05-09 | 2023-05-12 | 华为技术有限公司 | Method for distributing resources, base station and terminal |
| CN110708152B (en) * | 2019-11-08 | 2022-03-22 | 中国信息通信研究院 | Data structure indication method and equipment |
| US20230032015A1 (en) * | 2020-01-23 | 2023-02-02 | Qualcomm Incorporated | User equipment as initiating device in frame based equipment mode |
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