CN105307276A - Non-authoritative frequency band transmission method and device - Google Patents
Non-authoritative frequency band transmission method and device Download PDFInfo
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- CN105307276A CN105307276A CN201410252594.5A CN201410252594A CN105307276A CN 105307276 A CN105307276 A CN 105307276A CN 201410252594 A CN201410252594 A CN 201410252594A CN 105307276 A CN105307276 A CN 105307276A
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Abstract
The invention provides a non-authoritative frequency band transmission method and device. As one embodiment, the non-authoritative frequency band transmission method comprises the following steps: in a first step, a base station sends downlink signaling on a first sub-frame of a first carrier; and in a second step, physical layer data are sent on a second sub-frame of a second carrier. Wherein, the physical layer data occupy K1 symbols of the second sub-frame. The starting timing of the second sub-frame is K2 symbols ahead of the starting timing of the first sub-frame. K1 is a positive integer, K2 is a non-negative integer, the sum of K1 and K2 is smaller than or equal to a total number of symbols configured by the base station in the second sub-frame of the second carrier. The first carrier is deployed in an authoritative spectrum and the second carrier is deployed in a non-authoritative spectrum. By adopting the non-authoritative frequency band transmission method and device in the scheme of the invention, the interference caused by LTE devices of other operators when scheduling the non-authoritative spectrum on the current sub-frame can be overcome. The non-authoritative frequency band transmission method and device in the scheme of the invention can be used for reducing the cost of signaling used for UE ability report. In addition, the non-authoritative frequency band transmission method and device are compatible with the existing LTE standard, thereby having good compatibility.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to the communication means for unlicensed spectrum (UnlicensedSpectrum) based on LTE (LongTermEvolution, Long Term Evolution) and device.
Background technology
Traditional 3GPP (3rdGenerationPartnerProject, third generation partner program) in LTE system, transfer of data can only occur in authorizes on frequency spectrum, but along with the sharply increase of traffic carrying capacity, especially in some urban areas, frequency spectrum is authorized may to be difficult to the demand meeting traffic carrying capacity.62 plenary sessions of 3GPPRAN discuss a new research topic, namely the research (RP-132085) that unlicensed spectrum is comprehensive, main purpose is that the dependent (Non-standalone) of the LTE of research and utilization in unlicensed spectrum is disposed, and so-called dependent refers to that the communication in unlicensed spectrum is wanted and authorizes the Serving cell on frequency spectrum to be associated.One intuitively method be the CA (CarrierAggregation reused as far as possible in existing system, carrier aggregation) concept, namely be deployed in and authorize Serving cell on frequency spectrum as Pcell (PrimaryCell, main plot), be deployed in Serving cell in unlicensed spectrum as Scell (SecondaryCell, auxiliary community).
For unlicensed spectrum, consider its interference level uncontrollable/prediction, LTE may adopt LBT (ListenBeforeTalk in unlicensed spectrum, first intercept rear transmission) technology avoids interference, i.e. base station or UE (UserEquipment, subscriber equipment) sending the received power first monitored before signal in unlicensed spectrum, if determine there is no interference source in described unlicensed spectrum according to described received power, then in described unlicensed spectrum, send signal, otherwise do not send signal.Further, in order to avoid descending control signaling is subject to uncertain interference, descending control signaling may only send on mandate frequency spectrum.The interference that LTE equipment is subject in unlicensed spectrum may come from the LTE equipment of other communication systems or other operators, and therefore, LBT technology should overcome the LTE equipment of other communication systems and other operators simultaneously.
For LTELBT, one needs the problem solved to be how to arrange the LS (ListeningSlot monitors time slot) for monitoring reception power.For the problems referred to above, the invention discloses a kind of method and apparatus utilizing unlicensed band to transmit.
Summary of the invention
LS for monitoring reception power may be positioned at centre or the two ends of subframe, and inventor is found by research: the two ends that the LS for monitoring reception power is arranged on subframe can be avoided arranging the protection interval receiving/send switching for radio circuit respectively in LS both sides.Further, LS is arranged in subframe front end (namely before several symbol) and can avoids conflicting with the DMRS of subframe (DemodulationReferenceSignal, demodulated reference signal).If whether LTE equipment basis in unlicensed spectrum is positioned at the snoop results determination present sub-frame of the LS of the front end of present sub-frame for sending signal, then the dispatch of present sub-frame cannot cannot determine whether to dispatch present sub-frame at the initial timing instant of present sub-frame in the upper transmission-base station of the PDCCH of present sub-frame (PhysicalDownlinkControlChannel, Physical Downlink Control Channel).
For the problems referred to above, the invention discloses a kind of method in base station, wherein, comprise the steps:
-steps A. in the first subframe of first carrier, send downlink signaling
-step B. processes physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described process sends and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described process receives and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
Described symbol is OFDM (OrthogonalFrequencyDivisionMultiplexing, OFDM) symbol or SC-FDMA (SingleCarrier-FrequencyDivisionMultipleAccess, single-carrier frequency division multiple access) symbol.If the second subframe on the second carrier wave is set to common CP (CyclicPrefix, Cyclic Prefix) by the Serving cell that described base station maintains, K1 adds K2's and equals 14; If the second subframe on the second carrier wave is set to expansion CP (ExtendedCP) by the Serving cell that described base station maintains, K1 adds K2's and equals 12.As an embodiment, described physical layer data comprises the demodulated reference signal for channel estimating.As another embodiment, described physical layer data comprises the CSI-RS (ChannelStatusIndicator-ReferenceSignal) for channel quality monitoring.As an embodiment, described downlink signaling is physical layer signaling.
Concrete, according to an aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
Received signal power is monitored in-steps A 0. very first time window on a second carrier
Wherein, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols.
As an embodiment, described process sends, a described K3 symbol comprise very first time window and switching time window, described switching time, window was used for reception/transmission switching of the radio circuit of described base station.
As an embodiment, K2 equals K3, and described downlink signaling transmits on PDCCH or ePDCCH.The essence of described embodiment is: the initial timing advance of subframe of first carrier K2 symbol is compared in described base station in the initial timing of subframe that first carrier and the subframe timing of the second carrier wave are nonsynchronous-the second carrier waves.A described K2 symbol, for monitoring on the second carrier wave whether there is interference source, can determine whether before guaranteeing the initial timing of first subframe of described base station on first carrier to send the second subframe that described downlink signaling dispatches the second carrier wave.In the present embodiment, described downlink signaling can send on PDCCH or ePDCCH, provides larger flexibility.
As another embodiment, described received signal power is lower than specific threshold.Described specific threshold is configurable, or pre-determining.Namely interference source is not monitored.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-step C. is described process subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, and described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
The essence of above-mentioned aspect is: LTE base station once takies lasting multiple subframe in unlicensed spectrum, and monitors unlicensed spectrum before first subframe only in described multiple subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
Object UE-the EUTRA-CapabilityIE that the object UE that-steps A 1. receives described physical layer data sends determines that described object UE is supported in unlicensed spectrum and communicates.
Wherein, described K2 is 0, and described downlink signaling is in the upper transmission of ePDCCH (EnhancedPDCCH, the PDCCH of enhancing), described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
The essence of above-mentioned aspect is: the subframe timing of Serving cell on first carrier and the second carrier wave that described base station maintains is synchronous.Can only be transmitted by ePDCCH the dispatch of unlicensed spectrum, therefore support that the UE of unlicensed spectrum communication must support ePDCCH, namely when UE capability reporting, do not need to report ePDCCH-r11 territory, decrease signaling consumption.Described object UE is the transmission of described physical layer data or receives UE.
As an embodiment, described traditional UE-EUTRA-CapabilityIE is by supporting that the UE of ePDCCH sends.
As an embodiment, traditional UE-EUTRA-CapabilityIE that described object UE-EUTRA-CapabilityIE sends with traditional UE that only can communicate on mandate frequency spectrum compares, and add X territory, X is positive integer.
The invention discloses a kind of method in UE, wherein, comprise the steps:
-steps A. in the first subframe of first carrier, receive downlink signaling
-step B. is operating physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described operation receives and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described operation sends and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be equal to or less than the total number of symbols be configured in described UE the second subframe on a second carrier.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
Concrete, according to an aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
Received signal power is monitored in-steps A 0. very first time window on a second carrier
Wherein, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols, and described operation sends.
As an embodiment, described operation sends, a described K3 symbol comprise very first time window and switching time window, described switching time, window was used for reception/transmission switching of the radio circuit of described UE.
As an embodiment, K2 equals K3, and described downlink signaling transmits on PDCCH or ePDCCH.
As an embodiment, described received signal power is lower than specific threshold.Described specific threshold is configurable, or pre-determining.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-step C. is described operation subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, and described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
Concrete, according to an aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
-steps A 1. sends object UE-EUTRA-CapabilityIE and indicates described UE to be supported in unlicensed spectrum to communicate.
Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: for sending downlink signaling in the first subframe of first carrier
Second module: for processing physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described process sends and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described process receives and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As an embodiment, the said equipment also comprises:
3rd module: for described process subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
As another embodiment, the said equipment also comprises:
Four module: the object UE-EUTRA-CapabilityIE that the object UE for receiving described physical layer data sends determines that described object UE is supported in unlicensed spectrum and communicates.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: for receiving downlink signaling in the first subframe of first carrier
Second module: for operating physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described operation receives and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described operation sends and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be equal to or less than the total number of symbols be configured in described UE the second subframe on a second carrier.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As an embodiment, the said equipment also comprises:
3rd module: for described operation subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
As another embodiment, the said equipment also comprises:
Four module: indicate described UE to be supported in unlicensed spectrum to communicate for sending object UE-EUTRA-CapabilityIE.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
For the problem introducing the LS setting that LBT technology is brought in LTE system, the present invention proposes a kind of method and apparatus utilizing unlicensed band to transmit.As an embodiment, the synchronizing sub-frame that base station is arranged at first carrier and the second carrier wave offset by K2 symbol, and a described K2 symbol is used for monitoring reception power on a second carrier.The interference that the LTE equipment that the solution of the present invention can overcome other operators brings in present sub-frame execution cost unlicensed spectrum.The solution of the present invention can reduce the expense of the signaling for UE capability reporting.In addition, existing LTE standard that the present invention is compatible as far as possible, has good compatibility.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention 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 chart of transmission ascending physical signal layer data according to an embodiment of the invention;
Fig. 3 shows the nonsynchronous sequential chart of polymerization carrier timing according to an embodiment of the invention;
Fig. 4 shows the synchronous sequential chart of polymerization carrier timing according to an embodiment of the invention;
Fig. 5 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention;
Fig. 6 shows the structured flowchart of the processing unit in UE according to an embodiment of the invention;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrates the flow chart of transmission downlink physical layer data, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UEU2.The step S10 wherein identified in square frame G1 and S20 is optional step.
For base station N1, in step s 11, received signal power is monitored in very first time window on a second carrier; In step s 12, the first subframe of first carrier sends downlink signaling; In step s 13, the second subframe of the second carrier wave sends physical layer data.
For UEU2, in the step s 21, the first subframe of first carrier receives downlink signaling; In step S22, the second subframe of the second carrier wave receives physical layer data.
In embodiment 1, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols, and described physical layer data takies K1 symbol of the second subframe.Initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe, K1 is positive integer, and K2 is nonnegative integer, and K1 adds K2's and is less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
Sub-embodiment 1, UEU1 as embodiment 1 sends object UE-EUTRA-CapabilityIE and indicates described UE to be supported in unlicensed spectrum to communicate in step S20; Base station N1 receives the described object UE-EUTRA-CapabilityIE that UEU1 sends in step slo and determines that UEU1 is supported in unlicensed spectrum and communicate.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
As the sub-embodiment 2 of embodiment 1, described K2 equals described K3.
As the sub-embodiment 3 of embodiment 1, described received signal power is lower than specific threshold.Described specific threshold is configurable, or the fixed value of pre-determining.
Embodiment 2
Embodiment 2 illustrates the flow chart of transmission ascending physical signal layer data, as shown in Figure 2.In accompanying drawing 2, base station N3 is the serving BS of UEU4.The step S30 wherein identified in square frame G2 and S40 is optional step.
For base station N3, in step S31, the first subframe of first carrier sends downlink signaling; In step s 32, the second subframe of the second carrier wave receives physical layer data.
For UEU4, in step S41, the first subframe of first carrier receives downlink signaling; In step S42, in very first time window on a second carrier, monitor received signal power; In step S43, the second subframe of the second carrier wave sends physical layer data.
In embodiment 2, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols, and described physical layer data takies K1 symbol of the second subframe.Initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer.K1 is positive integer, and K2 is nonnegative integer, and K1 adds K2's and is less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
Sub-embodiment 1, UEU4 as embodiment 2 sends object UE-EUTRA-CapabilityIE in step s 40 and indicates described UE to be supported in unlicensed spectrum to communicate; Base station N3 receives the described object UE-EUTRA-CapabilityIE that UEU4 sends in step s 30 and determines that UEU4 is supported in unlicensed spectrum and communicate.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
As the sub-embodiment 2 of embodiment 2, described K2 equals described K3.
As the sub-embodiment 3 of embodiment 2, described received signal power is lower than specific threshold.Described specific threshold is configurable, or the fixed value of pre-determining.
Embodiment 3
Embodiment 3 illustrates the nonsynchronous sequential chart of polymerization carrier timing, as shown in Figure 3.In accompanying drawing 3, the grid of oblique line mark is the time slot belonging to very first time window, and the grid of backslash mark is the time slot belonging to physical layer data, and the grid of vertical line mark is the transmission subframe of subsequent physical layer data.
For base station, in very first time window first on a second carrier, monitor received signal power; Then in the first subframe of first carrier, downlink signaling is sent; Then in the second subframe of the second carrier wave, physical layer data is sent.
For UE, first in the first subframe of first carrier, receive downlink signaling; Then in the second subframe of the second carrier wave, physical layer data is received.
In embodiment 3, very first time window is arranged in (oblique line mark) front K2 symbol of the second subframe, K2 is positive integer, described physical layer data takies (backslash mark) the K1 symbol in the second subframe, initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe, K1 is positive integer, that K1 adds K2 and equal the total number of symbols that configures in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
As the sub-embodiment 1 of embodiment 3, described base station follows closely in the N continuous subframe after the second subframe in (the vertical line mark) of the second carrier wave and sends subsequent physical layer data, and described subsequent physical layer data occupies the whole symbols in described N number of subframe.Wherein, described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
Embodiment 4
Embodiment 4 illustrates the synchronous sequential chart of polymerization carrier timing, as shown in Figure 4.In accompanying drawing 4, the grid of oblique line mark is the time slot belonging to very first time window, and the grid of backslash mark is the time slot belonging to physical layer data, and the grid of vertical line mark is the 3rd subframe.
For base station, first receiving target UE-EUTRA-CapabilityIE determines that UE is supported in unlicensed spectrum and communicates; Then in the first subframe of first carrier, downlink signaling is sent; Then in the second subframe of the second carrier wave, physical layer data is received.
For described UE, first send described object UE-EUTRA-CapabilityIE and indicate described UE to be supported in unlicensed spectrum to communicate; Then in the first subframe of first carrier, downlink signaling is received; Then received signal power is monitored in very first time window on a second carrier; Then in the second subframe of the second carrier wave, physical layer data is sent.
Front K3 symbol of the second subframe that in embodiment 4, very first time window is arranged in (oblique line mark), K3 is positive integer, K1 symbol of the second subframe that described physical layer data takies (backslash mark).The initial timing of the second subframe and the initial timing of the 3rd subframe are synchronous, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer.That K3 adds K1 and equal the total number of symbols that configures in the second subframe on a second carrier of base station described in described total number of symbols.First carrier is deployed in mandate frequency spectrum, second carrier wave is deployed in unlicensed spectrum, described downlink signaling is in (vertical line mark) the upper transmission of ePDCCH, described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
Sub-embodiment 1, K as embodiment 4 equals 4.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 5.In accompanying drawing 5, processing unit 200 is by receiver module 201, and sending module 202 and processing module 203 form.
For the object UE-EUTRA-CapabilityIE that the object UE receiving described physical layer data sends, receiver module 201 is determined that described object UE is supported in unlicensed spectrum and is communicated; Sending module 202 for sending downlink signaling in the first subframe of first carrier; Processing module 203 for processing physical layer data in the second subframe of the second carrier wave.
In embodiment 5, described physical layer data takies K1 symbol of the second subframe.Described process is transmission and the initial timing of the initial timing of the second subframe and the first subframe is synchronization; Or described process is reception and the initial timing of the initial timing of the second subframe and the 3rd subframe is synchronization, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K1 is less than the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.Described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
Embodiment 6
Embodiment 6 illustrates the structured flowchart of the processing unit in UE, as shown in Figure 6.In accompanying drawing 6, processing unit 300 is by sending module 301, and receiver module 302 and operational module 303 form.
Sending module 301 indicates described UE to be supported in unlicensed spectrum to communicate for sending object UE-EUTRA-CapabilityIE; Receiver module 302 for receiving downlink signaling in the first subframe of first carrier; Operational module 303 is for operating physical layer data in the second subframe of the second carrier wave.
In embodiment 6, described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.Described physical layer data takies K1 symbol of the second subframe.Described operation is reception and the initial timing of the initial timing of the second subframe and the first subframe is synchronization; Or described operation is transmission and the initial timing of the initial timing of the second subframe and the 3rd subframe is synchronization, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K1 is less than the total number of symbols be configured in described UE the second subframe on a second carrier.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (16)
1. the method in base station, wherein, comprises the steps:
-steps A. in the first subframe of first carrier, send downlink signaling
-step B. processes physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described process sends and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described process receives and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
2. method according to claim 1, is characterized in that, described steps A also comprises the steps:
Received signal power is monitored in-steps A 0. very first time window on a second carrier
Wherein, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols.
3. according to claim 1, the method described in 2, is characterized in that, described steps A also comprises the steps:
Object UE-the EUTRA-CapabilityIE that the object UE that-steps A 1. receives described physical layer data sends determines that described object UE is supported in unlicensed spectrum and communicates.
Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
4. method according to claim 1, is characterized in that, also comprises the steps:
-step C. is described process subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, and described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
5. method according to claim 2, is characterized in that, described received signal power is lower than specific threshold.Described specific threshold is configurable, or pre-determining.
6. the method in UE, wherein, comprises the steps:
-steps A. in the first subframe of first carrier, receive downlink signaling
-step B. is operating physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described operation receives and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described operation sends and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be equal to or less than the total number of symbols be configured in described UE the second subframe on a second carrier.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
7. method according to claim 6, is characterized in that, described steps A also comprises the steps:
Received signal power is monitored in-steps A 0. very first time window on a second carrier
Wherein, very first time window is arranged in front K3 symbol of the second subframe, and K3 is positive integer, and K3 adds K1's and equals described total number of symbols, and described operation sends.
8. according to claim 6, the method described in 7, is characterized in that, described steps A also comprises the steps:
-steps A 1. sends object UE-EUTRA-CapabilityIE and indicates described UE to be supported in unlicensed spectrum to communicate.
Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
9. method according to claim 6, is characterized in that, also comprises the steps:
-step C. is described operation subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, and described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
10. method according to claim 7, is characterized in that, described received signal power is lower than specific threshold.Described specific threshold is configurable, or pre-determining.
11. 1 kinds of base station equipments, is characterized in that, this equipment comprises:
First module: for sending downlink signaling in the first subframe of first carrier
Second module: for processing physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described process sends and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described process receives and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be less than or equal to the total number of symbols configured in the second subframe on a second carrier of described base station.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
12. equipment according to claim 11, is characterized in that, this equipment also comprises:
3rd module: for described process subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
13. equipment according to claim 11, is characterized in that, this equipment also comprises:
Four module: the object UE-EUTRA-CapabilityIE that the object UE for receiving described physical layer data sends determines that described object UE is supported in unlicensed spectrum and communicates.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
14. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: for receiving downlink signaling in the first subframe of first carrier
Second module: for operating physical layer data in the second subframe of the second carrier wave
Wherein, described physical layer data takies K1 symbol of the second subframe.Described operation receives and initial timing advance K2 symbol of initial timing ratio first subframe of the second subframe; Or described operation sends and initial timing advance K2 symbol of initial timing ratio the 3rd subframe of the second subframe, and the 3rd subframe is K subframe after the first subframe.K be greater than 3 positive integer, K1 is positive integer, and K2 is nonnegative integer, that K1 adds K2 and be equal to or less than the total number of symbols be configured in described UE the second subframe on a second carrier.First carrier is deployed in mandate frequency spectrum, and the second carrier wave is deployed in unlicensed spectrum.
15. equipment according to claim 14, is characterized in that, this equipment also comprises:
3rd module: for described operation subsequent physical layer data in the N continuous subframe following closely after the second subframe of the second carrier wave, described subsequent physical layer data occupies the whole symbols in described N number of subframe.
Wherein, K2 is positive integer, and described downlink signaling transmits on PDCCH or ePDCCH, and described N is positive integer.
16. equipment according to claim 14, is characterized in that, this equipment also comprises:
Four module: indicate described UE to be supported in unlicensed spectrum to communicate for sending object UE-EUTRA-CapabilityIE.Wherein, described K2 is 0, and described downlink signaling transmits on ePDCCH, and described object UE-EUTRA-CapabilityIE compares with the traditional UE-EUTRA-CapabilityIE comprising ePDCCH-r11 territory, decreases ePDCCH-r11 territory.
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| CN105307276B (en) | 2019-08-27 |
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