CN105307276B - A kind of method and apparatus transmitted using unlicensed band - Google Patents
A kind of method and apparatus transmitted using unlicensed band Download PDFInfo
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- CN105307276B CN105307276B CN201410252594.5A CN201410252594A CN105307276B CN 105307276 B CN105307276 B CN 105307276B CN 201410252594 A CN201410252594 A CN 201410252594A CN 105307276 B CN105307276 B CN 105307276B
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Abstract
The invention proposes a kind of method and apparatus transmitted using unlicensed band.As one embodiment, base station sends downlink signaling in the first subframe of first carrier in step 1；Physical layer data is sent in the second subframe of the second carrier wave in step 2.Wherein, the physical layer data occupies K1 symbol of the second subframe.The K2 symbol of starting timing advance of the starting timing of second subframe than the first subframe.K1 is positive integer, and K2 is nonnegative integer, K1 plus K2 sum less than or equal to the total number of symbols configured in the second subframe on a second carrier of the base station.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.The solution of the present invention can overcome the LTE equipment of other operators to dispatch the unlicensed spectrum bring interference in current subframe.The solution of the present invention can reduce the expense of the signaling for UE capability reporting.In addition, the present invention has been compatible with existing LTE standard as far as possible, 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 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 dependent of LTE of the research and utilization in unlicensed spectrum
(Non-standalone) it disposes, so-called dependent refers to that the communication in unlicensed spectrum wants and authorize the service on frequency spectrum small
Area is associated.One intuitive method is that (Carrier Aggregation, carrier wave are poly- by the CA that reuses in existing system as far as possible
Close) concept, that is, be deployed in authorization frequency spectrum on serving cell as Pcell (Primary Cell, main plot), be deployed in non-
Authorize the serving cell on frequency spectrum as Scell (Secondary Cell, secondary cell).
For unlicensed spectrum, it is contemplated that uncontrollable/prediction of its interference level, LTE may in unlicensed spectrum
It avoids interfering using LBT (Listen Before Talk, first listen to and send afterwards) technology, i.e. base station or UE (User
Equipment, user equipment) reception power in unlicensed spectrum is first listened to before sending signal, if according to described
It receives power determination and does not interfere with source in the unlicensed spectrum, then send signal in the unlicensed spectrum, otherwise not
Send signal.Further, in order to avoid descending control signaling is by uncertain interference, descending control signaling may only exist
It is sent on authorization frequency spectrum.The interference that LTE equipment is subject in unlicensed spectrum may be from other communication systems either its
The LTE equipment of his operator, therefore, LBT technology can should overcome simultaneously other communication systems and the LTE of other operators to set
It is standby.
For LTE LBT, a problem to be solved is the LS how being arranged for monitoring reception power
(Listening Slot monitors time slot).In view of the above-mentioned problems, the invention discloses a kind of sides transmitted using unlicensed band
Method and device.
Summary of the invention
LS for monitoring reception power is likely located at the centre or both ends of subframe, inventors discovered through research that: it uses
It can be avoided in the both ends that subframe is arranged in the LS of monitoring reception power and be respectively arranged to radio circuit and connect transmit/receive in the two sides LS
Send the protection interval of switching.Further, LS is located at subframe front end (several symbols before i.e.) and can be avoided and the DMRS in subframe
(Demodulation Reference Signal, demodulated reference signal) conflict.If LTE equipment root in unlicensed spectrum
Determine whether current subframe is used to send signal according to the snoop results of the LS for the front end for being located at current subframe, then the tune of current subframe
Spending signaling can not be in PDCCH (Physical Downlink Control Channel, the physical down control letter of current subframe
Road) on transmission-base station the starting timing instant of current subframe can not determine whether dispatch current subframe.
In view of the above-mentioned problems, the invention discloses a kind of methods in base station, wherein include the following steps:
Step A. sends downlink signaling in the first subframe of first carrier
Step B. handles physical layer data in the second subframe of the second carrier wave
Wherein, the physical layer data occupies K1 symbol of the second subframe.The processing is transmission and the second subframe
The K2 symbol of starting timing advance of starting timing than the first subframe；Or the processing is reception and the starting of the second subframe is fixed
When than third subframe K2 symbol of starting timing advance, third subframe is the k-th subframe after the first subframe.K is greater than 3
Positive integer, K1 is positive integer, and K2 is nonnegative integer, and K1 is plus K2's and is less than or equal to the base station on a second carrier
The second subframe in the total number of symbols that configures.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
The symbol is OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing
With) symbol either SC-FDMA (Single Carrier-Frequency Division Multiple Access, single carrier
Frequency division multiple access) symbol.If the second subframe on the second carrier wave is set common CP by the serving cell that the base station maintains
(Cyclic Prefix, cyclic prefix), K1 is plus K2's and equal to 14；If the serving cell that the base station maintains is by second
The second subframe on carrier wave is set as extension CP (Extended CP), and K1 is plus K2's and equal to 12.As one embodiment,
The physical layer data includes the demodulated reference signal for channel estimation.As another embodiment, the physical layer data
Including the CSI-RS (Channel Status Indicator-Reference Signal) monitored for channel quality.As
One embodiment, the downlink signaling are physical layer signalings.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Received signal power is monitored in the first time window of step A0. on a second carrier
Wherein, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is equal to plus the sum of K1
The total number of symbols.
As one embodiment, the processing is to send, and the K3 symbol includes first time window and switching time
Window, reception/transmission switching of the switching time window for the radio circuit of the base station.
As one embodiment, K2 is equal to K3, and the downlink signaling transmits on PDCCH or ePDCCH.The implementation
The essence of example is: rising in the subframe that the subframe timing of first carrier and the second carrier wave is nonsynchronous-the second carrier wave the base station
Begin periodically compared to K2 symbol of the subframe starting timing advance of first carrier.The K2 symbol is for monitoring the second carrier wave
With the presence or absence of interference source, it is ensured that be able to determine whether to send out before the starting timing of the first subframe of the base station on first carrier
The second subframe for sending the downlink signaling to dispatch the second carrier wave.In the present embodiment, the downlink signaling can in PDCCH or
It is sent on ePDCCH, provides biggish flexibility.
As another embodiment, the received signal power is lower than specific threshold.The specific threshold is configurable,
Or pre-determining.Interference source is not monitored.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. processing subsequent physical-layer in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Data, the subsequent physical layer data occupy whole symbols in N number of subframe.
Wherein, wherein K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is just whole
Number.
The essence of above-mentioned aspect is: primary occupancy of the LTE base station in unlicensed spectrum continues multiple subframes, and only in institute
Unlicensed spectrum is monitored before stating first in multiple subframes subframe.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
The target UE-EUTRA-Capability IE that the target UE that step A1. receives the physical layer data is sent is true
The fixed target UE support communicates in unlicensed spectrum.
Wherein, the K2 is 0, and the downlink signaling is uploaded at ePDCCH (Enhanced PDCCH, the PDCCH of enhancing)
It is defeated, the target UE-EUTRA-Capability IE and traditional UE-EUTRA-Capability including the domain ePDCCH-r11
IE is compared, and reduces the domain ePDCCH-r11.
The essence of above-mentioned aspect is: subframe of the serving cell that the base station maintains on first carrier and the second carrier wave is fixed
When be synchronous.The dispatch of unlicensed spectrum can only be transmitted by ePDCCH, therefore support unlicensed spectrum communication
UE necessarily supports ePDCCH, i.e., in UE capability reporting, does not need to report the domain ePDCCH-r11, reduce signaling overheads.It is described
Target UE is transmission or the reception UE of the physical layer data.
As one embodiment, the tradition UE-EUTRA-Capability IE is by supporting the UE of ePDCCH to send
's.
As one embodiment, the target UE-EUTRA-Capability IE and it is only capable of communicating on authorization frequency spectrum
Traditional UE-EUTRA-Capability IE transmitted by traditional UE is compared, and increases X domain, and X is positive integer.
The invention discloses a kind of methods in UE, wherein includes the following steps:
Step A. receives downlink signaling in the first subframe of first carrier
Step B. operating physical layer data in the second subframe of the second carrier wave
Wherein, the physical layer data occupies K1 symbol of the second subframe.The operation is reception and the second subframe
The K2 symbol of starting timing advance of starting timing than the first subframe；Or the operation is transmission and the starting of the second subframe is fixed
When than third subframe K2 symbol of starting timing advance, third subframe is the k-th subframe after the first subframe.K is greater than 3
Positive integer, K1 is positive integer, K2 is nonnegative integer, K1 plus K2 sum on a second carrier equal to or less than the UE
The total number of symbols being configured in second subframe.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Received signal power is monitored in the first time window of step A0. on a second carrier
Wherein, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is equal to plus the sum of K1
The total number of symbols, the operation are to send.
As one embodiment, the operation is to send, and the K3 symbol includes first time window and switching time
Window, reception/transmission switching of the switching time window for the radio circuit of the UE.
As one embodiment, K2 is equal to K3, and the downlink signaling transmits on PDCCH or ePDCCH.
As one embodiment, the received signal power is lower than specific threshold.The specific threshold is configurable, or
Person is pre-determining.
Specifically, according to an aspect of the present invention, which is characterized in that further include following steps:
Step C. operation subsequent physical-layer in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Data, the subsequent physical layer data occupy whole symbols in N number of subframe.
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
Specifically, according to an aspect of the present invention, which is characterized in that the step A further includes following steps:
Step A1. sends target UE-EUTRA-Capability IE and indicates that the UE supports to lead in unlicensed spectrum
Letter.
Wherein, the K2 is 0, and the downlink signaling transmits on ePDCCH, the target UE-EUTRA-Capability
IE is compared with traditional UE-EUTRA-Capability IE including the domain ePDCCH-r11, reduces the domain ePDCCH-r11.
The invention discloses a kind of base station equipments, which is characterized in that the equipment includes:
First module: for sending downlink signaling in the first subframe of first carrier
Second module: for handling physical layer data in the second subframe of the second carrier wave
Wherein, the physical layer data occupies K1 symbol of the second subframe.The processing is transmission and the second subframe
The K2 symbol of starting timing advance of starting timing than the first subframe；Or the processing is reception and the starting of the second subframe is fixed
When than third subframe K2 symbol of starting timing advance, third subframe is the k-th subframe after the first subframe.K is greater than 3
Positive integer, K1 is positive integer, and K2 is nonnegative integer, and K1 is plus K2's and is less than or equal to the base station on a second carrier
The second subframe in the total number of symbols that configures.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As one embodiment, above equipment further include:
Third module: subsequent for the processing described in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Physical layer data, the subsequent physical layer data occupy whole symbols in N number of subframe.
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
As another embodiment, above equipment further include:
4th module: the target UE-EUTRA-Capability that the target UE for receiving the physical layer data is sent
IE determines that the target UE support communicates in unlicensed spectrum.Wherein, the K2 is 0, and the downlink signaling is on ePDCCH
Transmission, the target UE-EUTRA-Capability IE and traditional UE-EUTRA- including the domain ePDCCH-r11
Capability IE is compared, and reduces the domain ePDCCH-r11.
The invention discloses a kind of user equipmenies, which is characterized in that the equipment includes:
First module: for receiving downlink signaling in the first subframe of first carrier
Second module: for the operating physical layer data in the second subframe of the second carrier wave
Wherein, the physical layer data occupies K1 symbol of the second subframe.The operation is reception and the second subframe
The K2 symbol of starting timing advance of starting timing than the first subframe；Or the operation is transmission and the starting of the second subframe is fixed
When than third subframe K2 symbol of starting timing advance, third subframe is the k-th subframe after the first subframe.K is greater than 3
Positive integer, K1 is positive integer, K2 is nonnegative integer, K1 plus K2 sum on a second carrier equal to or less than the UE
The total number of symbols being configured in second subframe.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As one embodiment, above equipment further include:
Third module: subsequent for the operation described in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Physical layer data, the subsequent physical layer data occupy whole symbols in N number of subframe.
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
As another embodiment, above equipment further include:
4th module: indicate that the UE is supported in unlicensed spectrum for sending target UE-EUTRA-Capability IE
Upper communication.Wherein, the K2 is 0, and the downlink signaling transmits on ePDCCH, the target UE-EUTRA-Capability
IE is compared with traditional UE-EUTRA-Capability IE including the domain ePDCCH-r11, reduces the domain ePDCCH-r11.
Aiming at the problem that introducing the setting of LS brought by LBT technology in LTE system, awarded the invention proposes a kind of using non-
The method and apparatus for weighing frequency band transmission.As one embodiment, synchronizing sub-frame of the base station in first carrier and the setting of the second carrier wave
K2 symbol is offset by, the K2 symbol is for monitoring reception power on a second carrier.The solution of the present invention can overcome
The LTE equipment of other operators dispatches the unlicensed spectrum bring interference in current subframe.The solution of the present invention can subtract
Expense for the signaling of UE capability reporting less.In addition, the present invention has been compatible with existing LTE standard as far as possible, have 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 transmission downlink physical layer data according to an embodiment of the invention；
Fig. 2 shows the flow charts of transmission ascending physical signal layer data according to an embodiment of the invention；
Fig. 3 shows the nonsynchronous timing diagram of polymerization carrier timing according to an embodiment of the invention；
Fig. 4 shows the synchronous timing diagram of polymerization carrier timing according to an embodiment of the invention；
Fig. 5 shows the structural block diagram of the processing unit in base station according to an embodiment of the invention；
Fig. 6 shows the structural block diagram of the processing unit in UE according to an embodiment of the invention；
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 transmission downlink physical layer data, as shown in Fig. 1.In attached drawing 1, base station N1 is
The serving BS of UE U2.The step S10 and S20 wherein identified in box G1 is optional step.
For base station N1, in step s 11, received signal power is monitored in first time window on a second carrier；?
In step S12, downlink signaling is sent in the first subframe of first carrier；In step s 13, in the second subframe of the second carrier wave
Upper transmission physical layer data.
For UE U2, in the step s 21, downlink signaling is received in the first subframe of first carrier；In step S22,
Physical layer data is received in the second subframe of the second carrier wave.
In embodiment 1, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is plus K1's
With equal to the total number of symbols, the physical layer data occupies K1 symbol of the second subframe.The starting timing ratio of second subframe
K2 symbol of starting timing advance of first subframe, K1 are positive integers, and K2 is nonnegative integer, and K1 is less than or waits plus the sum of K2
The total number of symbols configured in the second subframe of the base station on a second carrier.First carrier is deployed in authorization frequency spectrum, and second
Carrier wave is deployed in unlicensed spectrum.
As the sub- embodiment 1 of embodiment 1, UE U1 sends target UE-EUTRA-Capability IE in step S20
Indicate that the UE support communicates in unlicensed spectrum；Base station N1 receives the target UE- of UE U1 transmission in step slo
EUTRA-Capability IE determines that UE U1 support communicates in unlicensed spectrum.Wherein, the K2 is 0, the downlink letter
Order is transmitted on ePDCCH, the target UE-EUTRA-Capability IE and traditional UE- including the domain ePDCCH-r11
EUTRA-Capability IE is compared, and reduces the domain ePDCCH-r11.
As the sub- embodiment 2 of embodiment 1, the K2 is equal to the K3.
As the sub- embodiment 3 of embodiment 1, the received signal power is lower than specific threshold.The specific threshold is can
Configuration or pre-determining fixed value.
Embodiment 2
Embodiment 2 illustrates the flow chart of transmission ascending physical signal layer data, as shown in Fig. 2.In attached drawing 2, base station N3 is
The serving BS of UE U4.The step S30 and S40 wherein identified in box G2 is optional step.
For base station N3, in step S31, downlink signaling is sent in the first subframe of first carrier；In step S32
In, physical layer data is received in the second subframe of the second carrier wave.
For UE U4, in step S41, downlink signaling is received in the first subframe of first carrier；In step S42,
Received signal power is monitored in first time window on a second carrier；In step S43, in the second subframe of the second carrier wave
Send physical layer data.
In embodiment 2, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is plus K1's
With equal to the total number of symbols, the physical layer data occupies K1 symbol of the second subframe.The starting timing ratio of second subframe
K2 symbol of starting timing advance of third subframe, third subframe are the k-th subframes after the first subframe.K is being greater than 3 just
Integer.K1 is positive integer, and K2 is nonnegative integer, K1 plus K2 sum less than or equal to the base station on a second carrier the
The total number of symbols configured in two subframes.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As the sub- embodiment 1 of embodiment 2, UE U4 sends target UE-EUTRA-Capability IE in step s 40
Indicate that the UE support communicates in unlicensed spectrum；Base station N3 receives the target UE- of UE U4 transmission in step s 30
EUTRA-Capability IE determines that UE U4 support communicates in unlicensed spectrum.Wherein, the K2 is 0, the downlink letter
Order is transmitted on ePDCCH, the target UE-EUTRA-Capability IE and traditional UE- including the domain ePDCCH-r11
EUTRA-Capability IE is compared, and reduces the domain ePDCCH-r11.
As the sub- embodiment 2 of embodiment 2, the K2 is equal to the K3.
As the sub- embodiment 3 of embodiment 2, the received signal power is lower than specific threshold.The specific threshold is can
Configuration or pre-determining fixed value.
Embodiment 3
Embodiment 3 illustrates the polymerization nonsynchronous timing diagram of carrier timing, as shown in Fig. 3.In attached drawing 3, oblique line mark
Grid be time slot belonging to first time window, the grid of backslash mark is time slot belonging to physical layer data, vertical line mark
Grid be subsequent physical layer data transmission subframe.
For base station, received signal power is monitored in first time window first on a second carrier；Then it is carried first
Downlink signaling is sent in first subframe of wave；Then physical layer data is sent in the second subframe of the second carrier wave.
For UE, downlink signaling is received in the first subframe of first carrier first；Then in the second son of the second carrier wave
Physical layer data is received on frame.
In embodiment 3, first time window is located at before (the oblique line mark) of the second subframe in K2 symbol, and K2 is just whole
Number, the physical layer data occupy (backslash mark) K1 symbol in the second subframe, the starting timing ratio of the second subframe
K2 symbol of starting timing advance of first subframe, K1 are positive integers, and K1 is plus K2's and is equal to the base station in the second carrier wave
On the second subframe in the total number of symbols that configures.First carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As the sub- embodiment 1 of embodiment 3, the base station (the vertical line mark) of the second carrier wave follow closely the second subframe it
Subsequent physical layer data is sent in continuous N number of subframe afterwards, the subsequent physical layer data occupies complete in N number of subframe
Portion's symbol.Wherein, the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
Embodiment 4
Embodiment 4 illustrates the synchronous timing diagram of polymerization carrier timing, as shown in Fig. 4.In attached drawing 4, oblique line mark
Grid is time slot belonging to first time window, and the grid of backslash mark is time slot belonging to physical layer data, vertical line mark
Grid is third subframe.
For base station, reception target UE-EUTRA-Capability IE first determines that UE supports to lead in unlicensed spectrum
Letter；Then downlink signaling is sent in the first subframe of first carrier；Then physics is received in the second subframe of the second carrier wave
Layer data.
For the UE, the target UE-EUTRA-Capability IE is sent first and indicates that the UE support is awarded non-
It is communicated on power frequency spectrum；Then downlink signaling is received in the first subframe of first carrier；Then on a second carrier first when
Between monitor received signal power in window；Then physical layer data is sent in the second subframe of the second carrier wave.
In embodiment 4, first time window is located in the preceding K3 symbol of (oblique line mark) the second subframe, and K3 is just whole
Number, the physical layer data occupy K1 symbol of (backslash mark) the second subframe.The starting timing of second subframe and the
Three subframes starting timing be it is synchronous, third subframe is the k-th subframe after the first subframe.K is greater than 3 positive integer.
K3 plus K1 sum equal to the total number of symbols configured in the second subframe on a second carrier of base station described in the total number of symbols.The
One carrier wave is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum, and the downlink signaling is in (vertical line mark)
It is transmitted on ePDCCH, the target UE-EUTRA-Capability IE and traditional UE-EUTRA- including the domain ePDCCH-r11
Capability IE is compared, and reduces the domain ePDCCH-r11.
As the sub- embodiment 1 of embodiment 4, K is equal to 4.
Embodiment 5
Embodiment 5 illustrates the structural block diagram of the processing unit in base station, as shown in Fig. 5.In attached drawing 5, processing unit
200 are made of receiving module 201, sending module 202 and processing module 203.
Receiving module 201 is used to receive the target UE-EUTRA- that the target UE of the physical layer data is sent
Capability IE determines that the target UE support communicates in unlicensed spectrum；Sending module 202 is used in first carrier
Downlink signaling is sent in first subframe；Processing module 203 is for handling physical layer data in the second subframe of the second carrier wave.
In embodiment 5, the physical layer data occupies K1 symbol of the second subframe.The processing is transmission and the second son
The starting timing and the starting of the first subframe timing of frame are synchronizations；Or the processing is reception and the starting of the second subframe
Timing and the starting of third subframe timing are synchronizations, and third subframe is the k-th subframe after the first subframe.K is greater than 3
Positive integer, K1 is positive integer, and K1 is less than the total number of symbols configured in the second subframe of the base station on a second carrier.First
Carrier wave is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.The downlink signaling transmits on ePDCCH, the mesh
Mark UE-EUTRA-Capability IE is compared with traditional UE-EUTRA-Capability IE including the domain ePDCCH-r11, is subtracted
The domain ePDCCH-r11 is lacked.
Embodiment 6
Embodiment 6 illustrates the structural block diagram of the processing unit in UE, as shown in Fig. 6.In attached drawing 6, processing unit 300
By sending module 301, receiving module 302 and operation module 303 are formed.
Sending module 301 indicates that the UE is supported in unauthorized frequency for sending target UE-EUTRA-Capability IE
It is communicated in spectrum；Receiving module 302 is for receiving downlink signaling in the first subframe of first carrier；Operation module 303 is used for
Operating physical layer data in second subframe of the second carrier wave.
In embodiment 6, the downlink signaling transmits on ePDCCH, the target UE-EUTRA-Capability IE and
Traditional UE-EUTRA-Capability IE including the domain ePDCCH-r11 is compared, and reduces the domain ePDCCH-r11.The physics
Layer data occupies K1 symbol of the second subframe.The operation is reception and the starting timing of the second subframe and rising for the first subframe
Begin to be periodically synchronization；Or the operation is transmission and the starting timing of the second subframe and the starting of third subframe timing are
Synchronization, third subframe are the k-th subframes after the first subframe.K is greater than 3 positive integer, and K1 is positive integer, and K1 is less than
The total number of symbols being configured in the second subframe of the UE on a second carrier.First carrier is deployed in authorization frequency spectrum, and second carries
Wave is deployed in unlicensed spectrum.
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 (12)
1. a kind of method in base station, wherein include the following steps:
Step A. sends downlink signaling in the first subframe of first carrier；
Step B. handles physical layer data in the second subframe of the second carrier wave；
Wherein, the physical layer data occupies K1 symbol of the second subframe, and the processing is transmission and the starting of the second subframe
The K2 symbol of starting timing advance of timing than the first subframe；Or the processing is the starting timing ratio of reception and the second subframe
K2 symbol of starting timing advance of third subframe, third subframe are the k-th subframes after the first subframe, and K is being greater than 3 just
Integer, K1 are positive integers, and K2 is nonnegative integer, K1 plus K2 sum less than or equal to the base station on a second carrier the
The total number of symbols configured in two subframes, first carrier are deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum；
The step A further includes following steps:
Received signal power is monitored in the first time window of step A0. on a second carrier；
Wherein, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is plus K1's and is equal to described
Total number of symbols.
2. the method according to claim 1, wherein the step A further includes following steps:
Described in the target UE-EUTRA-CapabilityIE that the target UE that step A1. receives the physical layer data is sent is determined
Target UE support communicates in unlicensed spectrum；
Wherein, the K2 is 0, and the downlink signaling transmits on ePDCCH, the target UE-EUTRA-CapabilityIE and
Traditional UE-EUTRA-CapabilityIE including the domain ePDCCH-r11 is compared, and reduces the domain ePDCCH-r11.
3. the method according to claim 1, wherein further including following steps:
Step C. processing subsequent physical layer data in the continuous N number of subframe of the second carrier wave followed closely after the second subframe,
The subsequent physical layer data occupies whole symbols in N number of subframe；
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
4. the method according to claim 1, wherein the received signal power is lower than specific threshold, the spy
Determine threshold value to be configurable or pre-determining.
5. a kind of method in UE, wherein include the following steps:
Step A. receives downlink signaling in the first subframe of first carrier；
Step B. operating physical layer data in the second subframe of the second carrier wave；
Wherein, the physical layer data occupies K1 symbol of the second subframe, and the operation is reception and the starting of the second subframe
The K2 symbol of starting timing advance of timing than the first subframe；Or the operation is the starting timing ratio of transmission and the second subframe
K2 symbol of starting timing advance of third subframe, third subframe are the k-th subframes after the first subframe, and K is being greater than 3 just
Integer, K1 are positive integers, and K2 is nonnegative integer, K1 plus K2 sum equal to or less than the UE on a second carrier second
The total number of symbols being configured in subframe, first carrier are deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum；
The step A further includes following steps:
Received signal power is monitored in the first time window of step A0. on a second carrier；
Wherein, first time window is located in the preceding K3 symbol of the second subframe, and K3 is positive integer, and K3 is plus K1's and is equal to described
Total number of symbols, the operation are to send.
6. according to the method described in claim 5, it is characterized in that, the step A further includes following steps:
Step A1. sends target UE-EUTRA-CapabilityIE and indicates that the UE support communicates in unlicensed spectrum；
Wherein, the K2 is 0, and the downlink signaling transmits on ePDCCH, the target UE-EUTRA-CapabilityIE and
Traditional UE-EUTRA-CapabilityIE including the domain ePDCCH-r11 is compared, and reduces the domain ePDCCH-r11.
7. according to the method described in claim 5, it is characterized in that, further including following steps:
Step C. operation subsequent physical layer data in the continuous N number of subframe of the second carrier wave followed closely after the second subframe,
The subsequent physical layer data occupies whole symbols in N number of subframe；
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
8. according to the method described in claim 5, it is characterized in that, the received signal power is lower than specific threshold, the spy
Determine threshold value to be configurable or pre-determining.
9. a kind of base station equipment, which is characterized in that the base station equipment includes:
First module: for sending downlink signaling in the first subframe of first carrier；
Second module: for handling physical layer data in the second subframe of the second carrier wave；
Wherein, the physical layer data occupies K1 symbol of the second subframe, and the processing is reception and the starting of the second subframe
The K2 symbol of starting timing advance of timing than the first subframe；Or the processing is the starting timing ratio of transmission and the second subframe
K2 symbol of starting timing advance of third subframe, third subframe are the k-th subframes after the first subframe, and K is being greater than 3 just
Integer, K1 are positive integers, and K2 is nonnegative integer, and K1 is plus K2's and is equal to or less than the base station equipment on a second carrier
The second subframe in the total number of symbols that is configured, first carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum；
The base station equipment further include:
Third module: for the processing subsequent physical in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Layer data, the subsequent physical layer data occupy whole symbols in N number of subframe；
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
10. base station equipment according to claim 9, which is characterized in that the base station equipment further include:
4th module: the target UE-EUTRA-CapabilityIE that the target UE for receiving the physical layer data is sent is true
The fixed target UE support communicates in unlicensed spectrum；Wherein, the K2 is 0, and the downlink signaling transmits on ePDCCH,
The target UE-EUTRA-CapabilityIE and traditional UE-EUTRA-CapabilityIE phase including the domain ePDCCH-r11
Than reducing the domain ePDCCH-r11.
11. a kind of user equipment, which is characterized in that the user equipment includes:
First module: for receiving downlink signaling in the first subframe of first carrier；
Second module: for the operating physical layer data in the second subframe of the second carrier wave；
Wherein, the physical layer data occupies K1 symbol of the second subframe, and the operation is reception and the starting of the second subframe
The K2 symbol of starting timing advance of timing than the first subframe；Or the operation is the starting timing ratio of transmission and the second subframe
K2 symbol of starting timing advance of third subframe, third subframe are the k-th subframes after the first subframe, and K is being greater than 3 just
Integer, K1 are positive integers, and K2 is nonnegative integer, and K1 is plus K2's and is equal to or less than the user equipment on a second carrier
The second subframe in the total number of symbols that is configured, first carrier is deployed in authorization frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum；
The user equipment further include:
Third module: for the operation subsequent physical in the continuous N number of subframe of the second carrier wave followed closely after the second subframe
Layer data, the subsequent physical layer data occupy whole symbols in N number of subframe；
Wherein, K2 is positive integer, and the downlink signaling transmits on PDCCH or ePDCCH, and the N is positive integer.
12. user equipment according to claim 11, which is characterized in that the user equipment further include:
4th module: indicate that the UE supports to lead in unlicensed spectrum for sending target UE-EUTRA-CapabilityIE
Letter, wherein the K2 is 0, and the downlink signaling transmits on ePDCCH, the target UE-EUTRA-CapabilityIE and
Traditional UE-EUTRA-CapabilityIE including the domain ePDCCH-r11 is compared, and reduces the domain ePDCCH-r11.
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| US11172505B2 (en) * | 2017-03-24 | 2021-11-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple starting and ending positions for scheduled or autonomous uplink transmission in unlicensed spectrum |
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| CN101174851B (en) * | 2006-11-03 | 2012-11-21 | 华为技术有限公司 | Method and device for detecting and identifying interference due to adjacent station |
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