CN105227282B - A kind of method and apparatus for LAA resource allocation in UE, base station - Google Patents
A kind of method and apparatus for LAA resource allocation in UE, base station Download PDFInfo
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- CN105227282B CN105227282B CN201410318536.8A CN201410318536A CN105227282B CN 105227282 B CN105227282 B CN 105227282B CN 201410318536 A CN201410318536 A CN 201410318536A CN 105227282 B CN105227282 B CN 105227282B
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Abstract
The invention proposes the method and apparatus for LAA resource allocation in a kind of UE, base station.Base station sends the first signaling in step 1, and the first signaling indicates in the target-subframe of target carrier with the presence or absence of reserved time interval；In step 2, wireless signal is transmitted on the period of the time resource except the reserved time interval of the target-subframe of target carrier.Wherein, the target carrier is deployed in unlicensed spectrum, and the transmission is to send or receive, and the first signaling is the physical layer scheduling signaling of the target-subframe.The solution of the present invention can whether there is the length of the GP and GP in each subframe of dynamic configuration, both meet communication requirement, in turn avoid the wasting of resources caused by unnecessary GP setting.In addition, the present invention reuses traditional LTE scheme as far as possible, thus there is good compatibility.
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 and device of (Long Term Evolution, long term evolution).
Background technique
Traditional 3GPP (3rd Generation Partner Project, third generation cooperative partner program) LTE system
In, data transmission can only occur in authorization frequency spectrum (Licensed Spectrum), however as increased dramatically for portfolio,
Especially in some urban areas, frequency spectrum is authorized to be likely difficult to meet the needs of portfolio.3GPP RAN(Radio Access
Network, wireless access network) 62 plenary sessions discuss a new research topic, i.e. the comprehensive research of unlicensed spectrum
(RP-132085), main purpose is portion dependent (Non-standalone) of LTE of the research and utilization in unlicensed spectrum
Administration, so-called dependent refer to that the communication in unlicensed spectrum wants and authorize the serving cell on frequency spectrum associated.One intuitive
Method be to reuse the concept of the CA (Carrier Aggregation, carrier wave polymerization) in existing system as far as possible, that is, be deployed in
It authorizes the serving cell on frequency spectrum as PCC (Primary Component Carrier, main carrier), is deployed in unauthorized frequency
Serving cell in spectrum is as SCC (Secondary Component Carrier, secondary carrier).In RAN#64 plenary session (discussion
Meeting) on, by Uniform Name, for LAA, (License Assisted Access, authorization frequency spectrum assist the communication in unlicensed spectrum
Access).
EIMTA (enhanced Interference Management is introduced in 3GPP R (Release, version) 12
Traffic Adaptation, the interference management service adaptation of enhancing) technology, i.e., for TDD (Time Division
Duplex, time division duplex) UL (Uplink, uplink)/DL (Downlink, downlink) frame structure, it can be adjusted by dynamic signaling
TDD UL/DL frame structure, possible TDD UL/DL frame structure include the totally 7 kinds of tdd frame structures of #0~6 defined in LTE.
For unlicensed spectrum (Unlicensed Spectrum), a scheme more more flexible than eIMTA is DD
(Dynamic Duplex), i.e., each subframe can be dynamically set as downlink subframe or sub-frame of uplink.Downlink subframe and
Need to be arranged GP (Guard Period, protection interval) between sub-frame of uplink to accommodate propagation delay.In addition, it is contemplated that LBT
(Listen Before Talk, send after listening to) is likely to be applied to unlicensed spectrum, and GP, which can be used for interference, to be listened to.
The essence of GP is the reserved time resource for forbidding transmitter to occupy, and GP is arranged too much can bring the decline of efficiency of transmission.
In DD scene, a problem to be solved be how to be arranged GP can satisfy communication requirement (such as accommodate propagation delay, do
Disturb the demands such as listen to) while avoiding the decline of efficiency of transmission.For DD, an intuitive scheme is to distribute GP in each subframe
Resource, however the program has following problem:
GP is not needed between waste of resource, such as two continuous downlink subframes
Be unfavorable for interference listen to, if such as by different operators deployment two adjacent base stations keep synchronizing sub-frame and
GP is set in the same position of each subframe, then described two adjacent base stations can not listen to interference.
In view of the above-mentioned problems, the invention discloses a kind of method and apparatus of LAA resource allocation.It should be noted that this
The scheme of invention is equally applicable to the communication of independence (Stand Alone) unlicensed spectrum (not establishing connection on authorization frequency spectrum)
Scene.
Summary of the invention
The invention discloses a kind of methods in base station, wherein includes the following steps:
Step A. sends the first signaling, the first signaling indicate in the target-subframe of target carrier with the presence or absence of it is reserved when
Between be spaced
Step B. transmits nothing on the time resource except the reserved time interval of the target-subframe of target carrier
Line signal
Wherein, the target carrier is deployed in unlicensed spectrum, and the transmission is to send or receive, and the first signaling is institute
State the physical layer scheduling signaling of target-subframe.
As one embodiment, the first signaling indicates that there is no described reserved in the target-subframe of the target carrier
Time interval, the target-subframe is the time resource except the reserved time interval.As another reality
Example is applied, the first signaling indicates that there are the reserved time interval, the base stations in the target-subframe of the target carrier
Zero is kept to send power in the reserved time interval of the target-subframe.
As one embodiment, in the first signaling include 1 bit be used to indicate in the target-subframe of target carrier whether
There are the reserved time intervals.
Through the above steps, whether it includes the reserved time interval that the base station is set dynamically in each subframe, both
Communication requirement is met, the setting of the unnecessary reserved time interval is in turn avoided.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. is monitored in the reserved time interval of the target-subframe of the target carrier receives signal
Power or discovery signal.
Wherein, the first signaling indicates in the target-subframe of the target carrier there are the reserved time interval,
The discovery signal includes at least one of:
- ZC (Zadoff Chu) sequence
Pseudo-random sequence
Information bit.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is descending scheduling signaling, the biography
Defeated is to send, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe tail portion, send the target-subframe of the serving cell in the target carrier of the first signaling
The reserved time interval keep zero to send power.
The descending scheduling signaling refers to the signaling of dispatching downlink data.
As one embodiment, the first signaling is DCI (Dynamic Control Information, dynamic control letter
One of breath) format { 1A, 2B, 2C, 2D }.
As one embodiment, DMRS (Demodulation Reference Signal, the demodulation of the target-subframe
Reference signal) in the RE that the first TS (Time Slot, time slot) occupies be traditional LTE the DMRS RE that is occupied in the first TS, it is described
The DMRS of target-subframe the RE that the 2nd TS is occupied be traditional LTE DMRS the RE that the 2nd TS is occupied move to left it is described it is reserved when
Between the time domain length that is spaced.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is uplink scheduling signaling, the biography
Defeated is to receive, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe head, the UE of the first signaling scheduling is described in the target-subframe of the target carrier
Reserved time interval keeps zero to send power.
The uplink scheduling signaling refers to the signaling of dispatching uplink data.
As one embodiment, the first signaling is one of DCI format { 0,4 }.
Specifically, according to an aspect of the present invention, which is characterized in that if deposited in the target-subframe of the target carrier
It is configured by high-level signaling or in the time domain length of the reserved time interval, the reserved time interval by the first signaling
Instruction.
As one embodiment, the first signaling include 2 bits be used to indicate it is described in the target-subframe of target carrier
The mapping of the length of reserved time interval, 2 bits and the reserved time interval length is as shown in table 1:
The length for the time interval reserved described in the indication bit vs. of 1: the first signaling of table
The specific duration of above-mentioned { the first length, the second length, third length (if present) } is matched by high-level signaling
It sets.
As one embodiment, the time domain length of the reserved time interval is T packet of the target-subframe tail portion
Include OFDM (the Orthogonal Frequency Division of CP (Cyclic Prefix, cyclic prefix)
Multiplexing, orthogonal frequency division multiplexing) symbol length, the T is positive integer.
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, the first signaling indicate in the target-subframe of target carrier with the presence or absence of it is reserved when
Between be spaced
Step B. operates nothing on the time resource except the reserved time interval of the target-subframe of target carrier
Line signal
Wherein, the target carrier is deployed in unlicensed spectrum, and the operation is to receive or send, and the first signaling is institute
State the physical layer scheduling signaling of target-subframe.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. is monitored in the reserved time interval of the target-subframe of the target carrier receives signal
Power or discovery signal.
Wherein, the first signaling indicates in the target-subframe of the target carrier there are the reserved time interval,
The discovery signal includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is descending scheduling signaling, the behaviour
Work is to receive, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe tail portion, send the target-subframe of the serving cell in the target carrier of the first signaling
The reserved time interval keep zero to send power.
As one embodiment, if target-subframe described in the time domain length no more than 3 of the reserved time interval
Tail portion includes the time domain length of 3 OFDM symbols of CP, and the pattern of the DMRS of the target-subframe reuses LTE special subframe structure
3 pattern；Otherwise the pattern of the DMRS of the target-subframe reuses the pattern of LTE special subframe structure 1.
Specifically, according to an aspect of the present invention, which is characterized in that the first signaling is uplink scheduling signaling, the behaviour
Work is to send, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe head, the reserved time of the UE in the target-subframe of the target carrier
Interval holding zero sends power.
Specifically, according to an aspect of the present invention, which is characterized in that if deposited in the target-subframe of the target carrier
It is configured by high-level signaling or in the time domain length of the reserved time interval, the reserved time interval by the first signaling
Instruction.
As one embodiment, the time domain length of the reserved time interval is T packet of the target-subframe tail portion
Including the SC-FDMA of CP, (Single Carrier Frequency Division Multiple Access, single carrier frequency division are more
Location) symbol length, the T is 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, the first signaling is indicated in the target-subframe of target carrier with the presence or absence of pre-
The time interval stayed
Second module: for the time resource except the reserved time interval of the target-subframe in target carrier
Transmit wireless signal
Wherein, the target carrier is deployed in unlicensed spectrum, and the transmission is to send or receive, and the first signaling is institute
State the physical layer scheduling signaling of target-subframe.
As one embodiment, the base station equipment further include:
Third module: it monitors and connects in the reserved time interval of the target-subframe in the target carrier
Receive signal power or discovery signal.
Wherein, the first signaling indicates in the target-subframe of the target carrier there are the reserved time interval,
The discovery signal includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
As one embodiment, the base station equipment is characterized in that, the first signaling is descending scheduling signaling, the transmission
It is to send, the first signaling indicates that there are the reserved time interval, the reserved times in the target-subframe of target carrier
It is located at interval at the target-subframe tail portion, sends the serving cell of the first signaling in the target-subframe of the target carrier
The reserved time interval keeps zero to send power.
As one embodiment, the base station equipment is characterized in that, the first signaling is uplink scheduling signaling, the transmission
It is to receive, the first signaling indicates that there are the reserved time interval, the reserved times in the target-subframe of target carrier
Be located at interval at the target-subframe head, the UE of the first signaling scheduling the target carrier the target-subframe it is described pre-
The time interval stayed keeps zero to send power.
As one embodiment, the base station equipment is characterized in that, if deposited in the target-subframe of the target carrier
It is configured by high-level signaling or in the time domain length of the reserved time interval, the reserved time interval by the first signaling
Instruction.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling is indicated in the target-subframe of target carrier with the presence or absence of pre-
The time interval stayed
Second module: for the time resource except the reserved time interval of the target-subframe in target carrier
Operate wireless signal
Wherein, the target carrier is deployed in unlicensed spectrum, and the operation is to receive or send, and the first signaling is institute
State the physical layer scheduling signaling of target-subframe.
As one embodiment, the user equipment further include:
Third module: it monitors and connects in the reserved time interval of the target-subframe in the target carrier
Receive signal power or discovery signal.
Wherein, the first signaling indicates in the target-subframe of the target carrier there are the reserved time interval,
The discovery signal includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
As one embodiment, the user equipment is characterized in that, the first signaling is descending scheduling signaling, the transmission
It is to send, the first signaling indicates that there are the reserved time interval, the reserved times in the target-subframe of target carrier
It is located at interval at the target-subframe tail portion, sends the serving cell of the first signaling in the target-subframe of the target carrier
The reserved time interval keeps zero to send power.
As one embodiment, the user equipment is characterized in that, the first signaling is uplink scheduling signaling, the transmission
It is to receive, the first signaling indicates that there are the reserved time interval, the reserved times in the target-subframe of target carrier
Be located at interval at the target-subframe head, the UE of the first signaling scheduling the target carrier the target-subframe it is described pre-
The time interval stayed keeps zero to send power.
As one embodiment, the user equipment is characterized in that, if deposited in the target-subframe of the target carrier
It is configured by high-level signaling or in the time domain length of the reserved time interval, the reserved time interval by the first signaling
Instruction.
For the reserved time interval offering question of unlicensed spectrum DD, the solution of the present invention can dynamic configuration it is each
With the presence or absence of the length of reserved time interval and the reserved time interval in subframe, communication requirement is not only met, but also
Avoid the wasting of resources caused by unnecessary reserved time interval setting.In addition, for there is reserved time interval
Downlink subframe, traditional DMRS pattern can not be supported, and the invention proposes new DMRS patterns.The present invention reuses as far as possible
Traditional LTE scheme, thus there is good compatibility.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other
Feature, objects and advantages will become more apparent:
Fig. 1 shows the flow chart of downlink transfer according to an embodiment of the invention；
Fig. 2 shows the flow charts of uplink according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of DMRS according to an embodiment of the invention；
Fig. 4 shows the processing unit sent for downlink signal in base station according to an embodiment of the invention
Structural block diagram；
Fig. 5 show in base station according to an embodiment of the invention for the received processing unit of uplink signal
Structural block diagram
Fig. 6 shows the knot of the processing unit for downstream signal reception in UE according to an embodiment of the invention
Structure block diagram；
Fig. 7 shows the knot of the processing unit sent for uplink signal in UE according to an embodiment of the invention
Structure block diagram；
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with attached drawing, it should be noted that do not rushing
In the case where prominent, the feature in embodiments herein and embodiment can be arbitrarily combined with each other.
Embodiment 1
Embodiment 1 illustrates the flow chart of downlink transfer, as shown in Fig. 1.In attached drawing 1, base station N1 is the service of UE U2
Base station, step S13 are optional steps.
For base station N1, in step s 11, the first signaling is sent, the first signaling indicates in the target-subframe of target carrier
With the presence or absence of reserved time interval；In step s 12, the reserved time interval of the target-subframe of target carrier it
Wireless signal is sent on outer time resource.For UE U2, in the step s 21, the first signaling is received；In step S22,
Wireless signal is received on time resource except the reserved time interval of the target-subframe of target carrier.
In embodiment 1, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 1, base station N1 in step s 13, in the target-subframe of the target carrier
The reserved time interval on monitor received signal power or discovery signal.Wherein, the first signaling indicates the target
There are the reserved time intervals in the target-subframe of carrier wave, and stating discovery signal includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
As the sub- embodiment 2 of embodiment 1, the first signaling indicates that there are described reserved in the target-subframe of target carrier
Time interval, the reserved time interval are located at the target-subframe tail portion, (base station N1 is maintained) first signaling of transmission
Serving cell keeps zero to send power in the reserved time interval of the target-subframe of the target carrier.
As the sub- embodiment 3 of embodiment 1, if there are the reserved times in the target-subframe of the target carrier
Interval, the time domain length of the reserved time interval are configured by high-level signaling.
As the sub- embodiment 4 of embodiment 1, if there are the reserved times in the target-subframe of the target carrier
Interval, the time domain length of the reserved time interval are indicated by the first signaling.
Embodiment 2
Embodiment 2 illustrates the flow chart of uplink, as shown in Fig. 2.In attached drawing 2, base station N3 is the service of UE U4
Base station, step S42 are optional steps.
For base station N3, in step S31, the first signaling is sent, the first signaling indicates in the target-subframe of target carrier
With the presence or absence of reserved time interval；In step s 32, the reserved time interval of the target-subframe of target carrier it
Wireless signal is received on outer time resource.For UE U4, in step S41, the first signaling is received；In step S43,
Wireless signal is operated on time resource except the reserved time interval of the target-subframe of target carrier.
In embodiment 2, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 2, UE U4 is in step S42, in the target-subframe of the target carrier
The reserved time interval on monitor and received signal power or find signal and interference source is not detected.Wherein, first
Signaling indicates that there are the reserved time intervals in the target-subframe of the target carrier, and it includes following for stating discovery signal
At least one:
- ZC sequence
Pseudo-random sequence
Information bit.
As the sub- embodiment 2 of embodiment 2, the first signaling is uplink scheduling signaling, and the first signaling indicates target carrier
There are the reserved time interval in target-subframe, the reserved time interval is located at the target-subframe head, UE U4
Zero is kept to send power in the reserved time interval of the target-subframe of the target carrier.
Embodiment 3
Embodiment 3 illustrates the schematic diagram of the DMRS in the target-subframe in embodiment 1, as shown in Fig. 3.Attached drawing
In 3, the grid of oblique line mark is the RE for DMRS transmission.
The RE that the DMRS of the target-subframe is occupied in the DMRS that the RE that the first TS is occupied is traditional LTE in the first TS, institute
State the DMRS of target-subframe move to left in the DMRS that the RE that the 2nd TS is occupied is traditional LTE in the RE that the 2nd TS is occupied it is described reserved
The time domain length (i.e. 2 OFDM symbols) of time interval.
Embodiment 4
Embodiment 4 illustrates the structural block diagram of the processing unit sent for downlink signal in base station, such as 4 institute of attached drawing
Show.In attached drawing 4, processing unit 300 is by sending module 301, sending module 302, and listens to the composition of module 303, wherein listening to mould
Block 303 is optional module.
Sending module 301 whether there is in the target-subframe of the first signaling instruction target carrier for sending the first signaling
Reserved time interval；Sending module 302 is used for except the reserved time interval of the target-subframe of target carrier
Wireless signal is transmitted on time resource.
In embodiment 4, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 4, processing unit 300 further includes listening to module 303, described in the instruction of the first signaling
There are the reserved time intervals in the target-subframe of target carrier, listen to module 303 for listening in the target
Received signal power is monitored in the reserved time interval of the target-subframe of carrier wave.
As the sub- embodiment 2 of embodiment 4, the first signaling includes the target-subframe that 2 bits are used to indicate target carrier
On the reserved time interval length, the mapping of the length of 2 bits and the reserved time interval
As shown in Table 1.
Embodiment 5
Embodiment 5 illustrates the structural block diagram for the received processing unit of uplink signal in base station, such as 5 institute of attached drawing
Show.In attached drawing 5, processing unit 400 is by sending module 401, receiving module 402, and listens to the composition of module 403, wherein listening to mould
Block 403 is optional module.
Sending module 401 whether there is in the target-subframe of the first signaling instruction target carrier for sending the first signaling
Reserved time interval；Receiving module 402 is used for except the reserved time interval of the target-subframe of target carrier
Wireless signal is transmitted on time resource.
In embodiment 5, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 5, processing unit 400 further includes listening to module 403, described in the instruction of the first signaling
There are the reserved time intervals in the target-subframe of target carrier, listen to module 403 in the target carrier
The target-subframe the reserved time interval on monitoring discovery signal.The discovery signal include it is following at least it
One:
- ZC sequence
Pseudo-random sequence
Information bit.
As the sub- embodiment 2 of embodiment 5, the length of the reserved time interval is that the T SC-FDMA including CP are accorded with
Number length, the T is positive integer.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit for downstream signal reception in a UE, such as 6 institute of attached drawing
Show.In attached drawing 6, processing unit 500 is made of receiving module 501 and receiving module 502.
Receiving module 501 whether there is in the target-subframe of the first signaling instruction target carrier for receiving the first signaling
Reserved time interval；Receiving module 502 is used for except the reserved time interval of the target-subframe of target carrier
Wireless signal is received on time resource.
In embodiment 6, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 6, the first signaling is one of DCI format { 1A, 2B, 2C, 2D }.
Embodiment 7
Embodiment 7 illustrates the structural block diagram of the processing unit sent for uplink signal in a UE, such as 7 institute of attached drawing
Show.In attached drawing 7, processing unit 600 is listened to module 602 and sending module 603 is formed by receiving module 601.Wherein listen to module
602 be optional module.
Receiving module 601 whether there is in the target-subframe of the first signaling instruction target carrier for receiving the first signaling
Reserved time interval；Sending module 603 is used for except the reserved time interval of the target-subframe of target carrier
Wireless signal is sent on time resource.
In embodiment 7, the target carrier is deployed in unlicensed spectrum, and the first signaling is the physical layer of the target-subframe
Dispatch.
As the sub- embodiment 1 of embodiment 7, processing unit 600 further includes listening to module 602, listens to module 602 and is used for
Received signal power or discovery signal are monitored in the reserved time interval of the target-subframe of the target carrier.
If listening to module 602 determines that there is no interference source, target of 603 ability of sending module in target carrier in the target-subframe
Wireless signal is sent on time resource except the reserved time interval of subframe.
In the sub- embodiment 1 of embodiment 7, the first signaling indicates to exist in the target-subframe of the target carrier described
Reserved time interval, the discovery signal includes at least one of:
- ZC sequence
Pseudo-random sequence
Information bit.
As the sub- embodiment 2 of embodiment 7, the first signaling is uplink scheduling signaling, and the first signaling indicates target carrier
There are the reserved time interval in target-subframe, the reserved time interval is located at the target-subframe head, described
UE keeps zero to send power in the reserved time interval of the target-subframe of the target carrier.
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 (20)
1. a kind of method in base station, wherein include the following steps:
Step A. sends the first signaling, and the first signaling indicates in the target-subframe of target carrier with the presence or absence of between the reserved time
Every；
The period of time resource of the step B. except the reserved time interval of the target-subframe of target carrier uploads
Defeated wireless signal；
Wherein, the target carrier is deployed in unlicensed spectrum, and the transmission is to send or receive, and the first signaling is the mesh
Mark the physical layer scheduling signaling of subframe.
2. the method according to claim 1, wherein further including following steps:
Step C. monitors received signal power in the reserved time interval of the target-subframe of the target carrier
Or discovery signal；
Wherein, the first signaling is indicated there are the reserved time interval in the target-subframe of the target carrier, described
It was found that signal includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
3. the transmission is hair the method according to claim 1, wherein the first signaling is descending scheduling signaling
It send, the first signaling indicates that there are the reserved time interval, the reserved time intervals in the target-subframe of target carrier
Positioned at the target-subframe tail portion, the serving cell of the first signaling is sent described in the target-subframe of the target carrier
Reserved time interval keeps zero to send power.
4. the transmission is to connect the method according to claim 1, wherein the first signaling is uplink scheduling signaling
It receives, the first signaling indicates that there are the reserved time interval, the reserved time intervals in the target-subframe of target carrier
Positioned at the target-subframe head, the UE of the first signaling scheduling the target carrier the target-subframe it is described reserved
Time interval keeps zero to send power.
5. according to claim 1 to method described in any claim in 4, which is characterized in that if the target carrier
There are the reserved time interval in target-subframe, the time domain length of the reserved time interval configured by high-level signaling or
Person is indicated by the first signaling.
6. a kind of method in UE, wherein include the following steps:
Step A. receives the first signaling, and the first signaling indicates in the target-subframe of target carrier with the presence or absence of between the reserved time
Every；
Step B. is grasped on the period of the time resource except the reserved time interval of the target-subframe of target carrier
Make wireless signal；
Wherein, the target carrier is deployed in unlicensed spectrum, and the operation is to receive or send, and the first signaling is the mesh
Mark the physical layer scheduling signaling of subframe.
7. according to the method described in claim 6, it is characterized in that, further including following steps:
Step C. monitors received signal power in the reserved time interval of the target-subframe of the target carrier
Or discovery signal；
Wherein, the first signaling is indicated there are the reserved time interval in the target-subframe of the target carrier, described
It was found that signal includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
8. according to the method described in claim 6, the operation is to connect it is characterized in that, the first signaling is descending scheduling signaling
It receives, the first signaling indicates that there are the reserved time interval, the reserved time intervals in the target-subframe of target carrier
Positioned at the target-subframe tail portion, the serving cell of the first signaling is sent described in the target-subframe of the target carrier
Reserved time interval keeps zero to send power.
9. according to the method described in claim 6, the operation is hair it is characterized in that, the first signaling is uplink scheduling signaling
It send, the first signaling indicates that there are the reserved time interval, the reserved time intervals in the target-subframe of target carrier
Positioned at the target-subframe head, the UE is protected in the reserved time interval of the target-subframe of the target carrier
Hold zero transmission power.
10. the method according to any claim in claim 6 to 9, which is characterized in that if the target carrier
There are the reserved time interval in target-subframe, the time domain length of the reserved time interval configured by high-level signaling or
Person is indicated by the first signaling.
11. a kind of base station equipment, which is characterized in that the equipment includes:
First module: for sending the first signaling, the first signaling is indicated in the target-subframe of target carrier with the presence or absence of reserved
Time interval；
Second module: the time for the time resource except the reserved time interval of the target-subframe in target carrier
Wireless signal is transmitted in section；
Wherein, the target carrier is deployed in unlicensed spectrum, and the transmission is to send or receive, and the first signaling is the mesh
Mark the physical layer scheduling signaling of subframe.
12. base station equipment according to claim 11, which is characterized in that the base station equipment further include:
Third module: monitoring receives letter in the reserved time interval of the target-subframe in the target carrier
Number power or discovery signal；
Wherein, the first signaling is indicated there are the reserved time interval in the target-subframe of the target carrier, described
It was found that signal includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
13. base station equipment according to claim 11, which is characterized in that the first signaling is descending scheduling signaling, the biography
Defeated is to send, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe tail portion, send the target-subframe of the serving cell in the target carrier of the first signaling
The reserved time interval keep zero to send power.
14. base station equipment according to claim 11, which is characterized in that the first signaling is uplink scheduling signaling, the biography
Defeated is to receive, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe head, the UE of the first signaling scheduling is described in the target-subframe of the target carrier
Reserved time interval keeps zero to send power.
15. base station equipment described in any claim in 1 to 14 according to claim 1, which is characterized in that if the target
There are the reserved time intervals in the target-subframe of carrier wave, and the time domain length of the reserved time interval is by high-level signaling
Configuration is indicated by the first signaling.
16. a kind of user equipment, which is characterized in that the equipment includes:
First module: for receiving the first signaling, the first signaling is indicated in the target-subframe of target carrier with the presence or absence of reserved
Time interval；
Second module: the time for the time resource except the reserved time interval of the target-subframe in target carrier
Wireless signal is operated in section；
Wherein, the target carrier is deployed in unlicensed spectrum, and the operation is to receive or send, and the first signaling is the mesh
Mark the physical layer scheduling signaling of subframe.
17. user equipment according to claim 16, which is characterized in that the user equipment further include:
Third module: monitoring receives letter in the reserved time interval of the target-subframe in the target carrier
Number power or discovery signal；
Wherein, the first signaling is indicated there are the reserved time interval in the target-subframe of the target carrier, described
It was found that signal includes at least one of:
- ZC sequence；
Pseudo-random sequence；
Information bit.
18. user equipment according to claim 16, which is characterized in that the first signaling is descending scheduling signaling, the behaviour
Work is to receive, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe tail portion, send the target-subframe of the serving cell in the target carrier of the first signaling
The reserved time interval keep zero to send power.
19. user equipment according to claim 16, which is characterized in that the first signaling is uplink scheduling signaling, the behaviour
Work is to send, and the first signaling indicates in the target-subframe of target carrier there are the reserved time interval, when described reserved
Between be located at interval at the target-subframe head, the reserved time of the UE in the target-subframe of the target carrier
Interval holding zero sends power.
20. user equipment described in any claim in 6 to 19 according to claim 1, which is characterized in that if the target
There are the reserved time intervals in the target-subframe of carrier wave, and the time domain length of the reserved time interval is by high-level signaling
Configuration is indicated by the first signaling.
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| CN201410318536.8A CN105227282B (en) | 2014-07-04 | 2014-07-04 | A kind of method and apparatus for LAA resource allocation in UE, base station |
| CN201910420611.4A CN110166216B (en) | 2014-07-04 | 2014-07-04 | LAA resource allocation method and device |
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| CN107241810B (en) * | 2016-03-29 | 2020-04-24 | 北京信威通信技术股份有限公司 | Scheduling method and sending method of uplink data, base station and user equipment |
| CN107295648B (en) * | 2016-03-31 | 2020-03-06 | 电信科学技术研究院 | Uplink transmission method, UE, base station and system |
| US11071142B2 (en) | 2016-05-04 | 2021-07-20 | Huawei Technologies Co., Ltd. | Uplink transmission method based on licensed-assisted access LAA system, and apparatus |
| JP6631929B2 (en) * | 2016-08-10 | 2020-01-15 | シャープ株式会社 | Communication system, base station device, terminal device, communication method and program |
| CN108880768B (en) * | 2017-05-12 | 2021-04-20 | 华为技术有限公司 | Signal transmission method and device |
| CN110166199A (en) * | 2018-02-13 | 2019-08-23 | 中兴通讯股份有限公司 | The determination method and device of reference signal pattern |
| CN112369088B (en) * | 2018-05-29 | 2024-04-05 | 上海诺基亚贝尔股份有限公司 | Sounding reference signal transmission in unlicensed spectrum |
| CN110891316B (en) | 2018-09-10 | 2023-11-03 | 华为技术有限公司 | Time domain resource allocation method and access network equipment |
| US10856331B1 (en) * | 2019-09-10 | 2020-12-01 | Cypress Semiconductor Corporation | Devices, systems, and methods for mitigating aggressive medium reservations |
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| CN102187727A (en) * | 2009-03-12 | 2011-09-14 | Lg电子株式会社 | The method for switching opeeating carrier at a user equipment in wireless communication system |
| CN103609186A (en) * | 2011-06-02 | 2014-02-26 | 美国博通公司 | Flexible disabling / enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission |
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| US9184886B2 (en) * | 2012-08-10 | 2015-11-10 | Blackberry Limited | TD LTE secondary component carrier in unlicensed bands |
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| CN102187727A (en) * | 2009-03-12 | 2011-09-14 | Lg电子株式会社 | The method for switching opeeating carrier at a user equipment in wireless communication system |
| CN103609186A (en) * | 2011-06-02 | 2014-02-26 | 美国博通公司 | Flexible disabling / enabling of cross-carrier scheduling in carrier-aggregated wireless data transmission |
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