CN105376188A - Scrambling method and device in LAA communication - Google Patents
Scrambling method and device in LAA communication Download PDFInfo
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- CN105376188A CN105376188A CN201410422599.8A CN201410422599A CN105376188A CN 105376188 A CN105376188 A CN 105376188A CN 201410422599 A CN201410422599 A CN 201410422599A CN 105376188 A CN105376188 A CN 105376188A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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Abstract
The present invention discloses a scrambling method and device in LAA communication. The method comprises the steps that: (1) a base station determines a first sequence, the determination parameter of the initial value of the generator of the first sequence comprises a specific identity which is the exclusive identity of an operator, (2) the base station sends a first RS at the given sub frame of a first carrier, wherein the first carrier is deployed at an unlicensed spectrum, the first sequence is a pseudo-random sequence, and the RS sequence of the first RS is the first sequence. A second carrier is deployed at a licensed spectrum, and the corresponding service cell of the second carrier is the scheduling cell of the first carrier. According to the scheme of the invention, the generation of the same RS sequence and scrambling sequence due to the configuration of the same PCI at the shared spectrum by adjacent base stations is avoided, and thus the serious inter-cell interference is avoided. In addition, the method and device can be compatible with existing LTE protocols as far as possible and have good compatibility.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to based on LTE (LongTermEvolution, Long Term Evolution) the scrambling method communicated for LAA (LicensedAssistedAccess, authorize auxiliary access) 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.3GPPRAN (RadioAccessNetwork, wireless access network) 62 plenary sessions 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 PCC (PrimaryComponentCarrier, main carrier), be deployed in Serving cell in unlicensed spectrum as SCC (SecondaryComponentCarrier, auxiliary carrier wave).In RAN#64 plenary session (seminar), the communication in unlicensed spectrum is LAA (LicenseAssistedAccess authorizes the auxiliary access of frequency spectrum) by Uniform Name.
In LTE system, because PCI is by PSS (PrimarySynchronizationSequence, main synchronizing sequence) and SSS (SecondarySynchronizationSequence, the secondary synchronization sequences) characteristic sequence that forms indicate.In LAA communication, the base station equipment of multiple operator deployment may transmitting wireless signals on the same frequency band, then share on frequency band and may produce PCI (PhysicalCellIndentifier, Physical Cell Identifier) conflict, namely adjacent base station is configured with identical PCI on shared frequency band, because PCI is used for scrambler and the RS (ReferenceSignal of physical layer data, reference signal) generation of sequence, so PCI conflict may bring serious presence of intercell interference.
For the problems referred to above, the invention discloses the scrambling method in a kind of LAA communication and device.
Summary of the invention
The invention discloses a kind of method in base station, it is characterized in that, comprise the steps:
-steps A. determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
The given subframe of-step B. on first carrier sends a RS.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
Proprietary the referring to of described operator: for the base station of different operators, the value difference (described specific identifier may have different values at the different base station of an operator) of described specific identifier.As an embodiment, the maker of First ray uses the pseudo random sequence generator of LTE, describes in detail and sees that TS36.2117.2 saves.
As an embodiment, the determination parameter of the initial value of the maker of First ray also comprises following one or two kinds:
The PCI (PhysicalCellIdentifier, Physical Cell Identifier) of the transmission community of the-the one RS
The index of transmission time slot in radio frames that in the RS sequence of the-the one RS, element maps, the i.e. initial value of the maker that two elements of the RS sequence of a RS may be corresponding different, if described two element map are to two time slots in described given subframe.As an embodiment, described specific identifier is the PLMN (PublicLandMobileNetwork, public land net) belonging to described base station.As an embodiment, described specific identifier is the center frequency point of the second carrier wave, second carrier wave is deployed in mandate frequency spectrum, the Serving cell that second carrier wave is corresponding is the dispatching cell of first carrier, second carrier wave is descending carrier or TDD (TimeDivisionDuplex, time division duplex) carrier wave, the dispatching cell of first carrier is that UE is specific or community is specific.As an embodiment, described specific identifier is the ECGI (E-UTRANCellGlobalIdentifier, cellular global identity) of the Serving cell that described second carrier wave is corresponding.
Concrete, according to an aspect of the present invention, it is characterized in that, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
Described antenna port { the CSI-RS (ChannelStatusIndicatorRS, channel state information reference signals) in the corresponding LTE of 15,16,17,18,19,20,21,22}.As an embodiment, the determination parameter of the initial value of the maker of First ray also comprises the index of OFDM (OrthogonalFrequencyDivisionMultiplexing, OFDM) symbol in time slot that a RS maps and the antenna port index sending a RS.
As an embodiment, described specific identifier is I, f
csi(I, n
s) reuse n in LTE to the mapping of the initial value of the maker of First ray
sto the initial value mapping relations (if the value outside the system bandwidth that the bandwidth of first carrier is LTE to be defined, only needing the element number in corresponding adjustment First ray) of the maker of CSI-RS sequence, f
csi(I, n
s) be I and n
sfunction, f
csi(I, n
s) be less than 20 nonnegative integer.Describe with the formula, namely
C
init, l,
n
cPbe the initial value of the maker of First ray respectively, the OFDM symbol index in time slot, PCI or high-level signaling configuration, CP (CyclicPrefix, Cyclic Prefix) identifies.C
init, l,
n
cPdetailed introduction with reference to 3GPPTS36.2116.10.5.1 joint.The present embodiment has taken into full account the compatibility with existing system, and (sequence hopping in traditional LTE system is limited to the index n of transmission time slot in radio frames to the sequence hopping of described specific identifier only in time domain (SequenceHopping)
s), the present embodiment is compared with traditional LTE scheme, (multiple jump in time domain) CSI-RS sequence that given PCI is corresponding is identical, this makes it possible to reuse traditional scheme and avoids the interference of the adjacent base station of same operator in shared unlicensed spectrum.As a sub-embodiment, f
csi(I, n
s)=mod (X
csi/ I+n
s, 20), described X
csibe the constant of pre-determining or configurable, mod (M, N) represents that M sentences the remainder of N.
Concrete, according to an aspect of the present invention, it is characterized in that, described step B also comprises the steps:
The described given subframe of-step B1. on first carrier sends physical layer data
Wherein, a RS is the DMRS (DemodulationRS, demodulated reference signal) of described physical layer data.Namely the object UE (UserEquipment, subscriber equipment) of described physical layer data carries out channel estimating acquisition channel parameter according to a RS, then utilizes described channel parameter to carry out channel equalization to received signal to recover described physical layer data.
As an embodiment, a RS by LTE antenna port the different antenna port of the K2 in 5,7,8,9,10,11,12,13,14} sent, and described K2 be not more than 8 positive integer.Described { the specific RS of UE in the corresponding LTE of 5,7,8,9,10,11,12,13,14} antenna port.
As an embodiment, the determination parameter of the initial value of the maker of First ray also comprises a RNTI (RadioNetworkTemporaryIdentifier, the tentative mark of wireless network), one RNTI is given the intended recipient UE (UserEquipment, subscriber equipment) of a RS by described base station assigns.As an embodiment, described specific identifier is I, f
dmrs(I, n
s) reuse n in LTE to the mapping of the initial value of the maker of First ray
sto the initial value mapping relations of the maker of DMRS sequence, f
dmrs(I, n
s) be I and n
sfunction, f
dmrs(I, n
s) be less than 20 nonnegative integer.Described n
sinitial value to the maker of DMRS sequence saves with reference to 3GPPTS36.2116.10.3.1.The present embodiment is compared with traditional LTE scheme, (multiple jump in time domain) UE specific RS sequence that given PCI is corresponding is identical, this makes it possible to reuse traditional scheme and avoids the interference of the adjacent base station of same operator in shared unlicensed spectrum.As a sub-embodiment, f
dmrs(I, n
s)=mod (X
dmrs/ I+n
s, 20), described X
dmrsit is the constant of pre-determining or configurable.
As an embodiment, element in the First ray corresponding to each antenna port of the one RS and the scheme of reusing to the mapping of running time-frequency resource in LTE, the 6.10.3.2 specifically described with reference to TS36.211 saves (if the value outside the system bandwidth that the bandwidth of first carrier is LTE to be defined, only needing the element number in corresponding adjustment First ray).
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
-steps A 1. determines the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.
Described step B also comprises the steps:
-step B2. uses the second sequence pair initial data to carry out Scrambling Operation and obtains described physical layer data.
Wherein, the second sequence is pseudo random sequence.
As an embodiment, the determination parameter of the initial value of the maker of the second sequence also comprises a RNTI (RadioNetworkTemporaryIdentifier, the tentative mark of wireless network), one RNTI is the mark RNTI of the scheduling DCI (DowlinkControlInformation, Downlink Control Information) of described physical layer data.
As an embodiment, the maker of the second sequence uses the pseudo random sequence generator of LTE, describes in detail and sees that TS36.2117.2 saves.
As an embodiment, described specific identifier is I, f
scrambling(I, n
s) reuse n in LTE to the mapping of the initial value of the maker of the second sequence
sto the mapping relations of the initial value of the maker of scrambler sequence, f
scrambling(I, n
s) be I and n
sfunction, f
scrambling(I, n
s) be less than 20 nonnegative integer.Described n
smapping relations to the initial value of the maker of scrambler sequence save with reference to 3GPPTS36.2115.3.1.The present embodiment is compared with traditional LTE scheme, (multiple jump in time domain) PDSCH (PhysicalDownlinkShareChannel that given PCI is corresponding, Physical Downlink Shared Channel) scrambler sequence be identical, this makes it possible to reuse traditional scheme and avoid the interference of the adjacent base station of same operator in shared unlicensed spectrum.As a sub-embodiment, f
scrambling(I, n
s)=mod (X
scrambling/ I+n
s, 20), described X
scramblingit is the constant of pre-determining or configurable.
As an embodiment, when the value of described specific identifier is V1, the initial value G2_1 of the initial value G1_1 of the maker of determined First ray and the maker of the second sequence; When the value of described specific identifier is V2, the initial value G2_2 of the initial value G1_2 of the maker of determined First ray and the maker of the second sequence; Have at least in G1_1-G1_2, G2_1-G2_2} one non-vanishing.
The invention discloses a kind of method in UE, it is characterized in that, comprise the steps:
-steps A. determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
The given subframe of-step B. on first carrier receives a RS.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, described step B also comprises the steps:
-step B0. obtains descending CSI (ChannelStatusIndicator, channel status indicates), and the reference resources of described descending CSI comprises a RS
Wherein, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
As an embodiment, the determination parameter of the initial value of the maker of First ray also comprises the index of OFDM (OrthogonalFrequencyDivisionMultiplexing, OFDM) symbol in time slot that a RS maps and the antenna port index sending a RS.As an embodiment, described descending CSI comprises { PTI (PrecodingTypeIndicator, precoding type indicates), RI (RankIndicator, order indicates), PMI (PrecodingMatrixIndicator, pre-coding matrix indicates), CQI (ChannelQualityIndicator, channel quality indicate) } in one or more.
Concrete, according to an aspect of the present invention, it is characterized in that, described step B also comprises the steps:
The described given subframe of-step B1. on first carrier receives physical layer data
Wherein, a RS is the DMRS of described physical layer data.
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, described steps A also comprises the steps:
-steps A 1. determines the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.
Described step B also comprises the steps:
-step B2. uses physical layer data described in the second sequence pair to carry out descrambling operation and obtains initial data.
Wherein, the second sequence is pseudo random sequence.
The invention discloses a kind of base station equipment, it is characterized in that, this equipment comprises:
First module: for determining First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
Second module: send a RS for the given subframe on first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
As an embodiment, the second module also sends physical layer data for the described given subframe on first carrier.Wherein, a RS is the DMRS of described physical layer data.
As an embodiment, the first module is also for determining the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.Second module also obtains described physical layer data for using the second sequence pair initial data to carry out Scrambling Operation.Wherein, the second sequence is pseudo random sequence.
The invention discloses a kind of subscriber equipment, it is characterized in that, this equipment comprises:
First module: for determining First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
Second module: receive a RS for the given subframe on first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
As an embodiment, the second module is also for obtaining descending CSI, and the reference resources of described descending CSI comprises a RS.Wherein, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
As an embodiment, the second module also receives physical layer data for the described given subframe on first carrier.Wherein, a RS is the DMRS of described physical layer data.
As an embodiment, the first module is also for determining the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.First module also obtains initial data for using physical layer data described in the second sequence pair to carry out descrambling operation.Wherein, the second sequence is pseudo random sequence.
For the PCI collision problem in LAA communication, the specific identifier that the solution of the present invention utilizes operator proprietary generates { the RS sequence of descending RS, the scrambler sequence of downlink physical layer data } in one or two, avoid because adjacent base station is configured with identical PCI on the frequency spectrum shared and generate identical RS sequence and scrambler sequence, and then avoiding serious presence of intercell interference.In addition, the compatible as far as possible existing LTE protocol of the present invention, 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 downlink transfer according to an embodiment of the invention;
Fig. 2 shows the flow chart of downlink data scrambler according to an embodiment of the invention and transmission;
Fig. 3 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention;
Fig. 4 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 downlink transfer, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UEU2, and the step in square frame F1 is optional step.
For base station N1, in step s 11, determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary; In step s 12, the given subframe on first carrier sends a RS.
For UEU2, in the step s 21, determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary; In step S22, the given subframe on first carrier receives a RS.
In embodiment 1, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
As the sub-embodiment 1 of embodiment 1, described specific identifier is { PLMN belonging to described base station, the center frequency point of the second carrier wave, one in the ECGI} of the Serving cell that the second carrier wave is corresponding.Second carrier wave is deployed in mandate frequency spectrum, and the Serving cell that the second carrier wave is corresponding is the dispatching cell of first carrier, and the dispatching cell of first carrier is that UE is specific or community is specific.
As the sub-embodiment 2 of embodiment 1, in step s 13, the described given subframe on first carrier sends physical layer data to base station N1; UEU2 is in step S23, and the described given subframe on first carrier receives physical layer data.Wherein, a RS is the DMRS of described physical layer data.
Embodiment 2
Embodiment 2 illustrates the flow chart of downlink data scrambler and transmission, as shown in Figure 2.In accompanying drawing 2, base station N3 is the serving BS of UEU4.
For base station N3, in step S31, determine First ray and the second sequence; In step s 32, use the second sequence pair initial data to carry out Scrambling Operation and obtain physical layer data; In step S33, the given subframe on first carrier sends a RS and described physical layer data.
For UEU4, in step S41, determine First ray and the second sequence; In step S42, the given subframe on first carrier sends a RS and described physical layer data; In step S43, use physical layer data described in the second sequence pair to carry out descrambling operation and obtain initial data.
In embodiment 2, first carrier is deployed in unlicensed spectrum, and the RS sequence of a RS is First ray.First ray is pseudo random sequence, and the maker of First ray uses the pseudo random sequence generator of LTE, and the determination parameter of the initial value of the maker of First ray comprises specific identifier.Second sequence is pseudo random sequence, and the maker of the second sequence uses the pseudo random sequence generator of LTE, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.Described specific identifier is that operator is proprietary.One RS is the DMRS of described physical layer data.
As the sub-embodiment 1 of embodiment 2, described specific identifier is { PLMN belonging to described base station, the center frequency point of the second carrier wave, one in the ECGI} of the Serving cell that the second carrier wave is corresponding.Second carrier wave is deployed in mandate frequency spectrum, and the Serving cell that the second carrier wave is corresponding is the dispatching cell of first carrier.
Embodiment 3
Embodiment 3 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 3.In accompanying drawing 3, base station processing unit 300 is made up of determination module 301 and sending module 302.
Determination module 301 is for determining First ray, and the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary; Sending module 302 sends a RS for the given subframe on first carrier.
In embodiment 3, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.The maker of First ray uses the pseudo random sequence generator of LTE.
As the sub-embodiment 1 of embodiment 3, sending module 302 also sends physical layer data for the described given subframe on first carrier.Wherein, a RS is the DMRS of described physical layer data.
Sub-embodiment the 2, one RS as embodiment 3 is sent by CSI-RS antenna port.
As the sub-embodiment 3 of embodiment 3, determination module 301 is also for determining the second sequence, and sending module 302 also obtains physical layer data and the described given subframe on first carrier sends described physical layer data for using the second sequence pair initial data to carry out Scrambling Operation.Wherein, a RS is the DMRS of described physical layer data, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.Wherein, the second sequence is pseudo random sequence.
Embodiment 4
Embodiment 4 illustrates the structured flowchart of the processing unit in a UE, as shown in Figure 4.In accompanying drawing 4, UE processing unit 400 is made up of determination module 401 and receiver module 402.
Determination module 401 is for determining First ray, and the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary.Receiver module 402 receives a RS for the given subframe on first carrier.
In embodiment 4, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.The maker of First ray uses the pseudo random sequence generator of LTE.
As the sub-embodiment 1 of embodiment 4, receiver module 402 is also for obtaining descending CSI, and the reference resources of described descending CSI comprises a RS.Wherein, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
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 (12)
1. the method in base station, is characterized in that, comprises the steps:
-steps A. determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
The given subframe of-step B. on first carrier sends a RS.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
2. method according to claim 1, is characterized in that, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
3. method according to claim 1, is characterized in that, described step B also comprises the steps:
The described given subframe of-step B1. on first carrier sends physical layer data.
Wherein, a RS is the DMRS of described physical layer data.
4. method according to claim 3, is characterized in that, described steps A also comprises the steps:
-steps A 1. determines the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.
Described step B also comprises the steps:
-step B2. uses the second sequence pair initial data to carry out Scrambling Operation and obtains described physical layer data.
Wherein, the second sequence is pseudo random sequence.
5. the method in UE, is characterized in that, comprises the steps:
-steps A. determine First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
The given subframe of-step B. on first carrier receives a RS.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
6. method according to claim 5, is characterized in that, described step B also comprises the steps:
-step B0. obtains descending CSI, and the reference resources of described descending CSI comprises a RS
Wherein, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
7. method according to claim 5, is characterized in that, described step B also comprises the steps:
The described given subframe of-step B1. on first carrier receives physical layer data
Wherein, a RS is the DMRS of described physical layer data.
8. method according to claim 7, is characterized in that, described steps A also comprises the steps:
-steps A 1. determines the second sequence, and the determination parameter of the initial value of the maker of the second sequence comprises described specific identifier.
Described step B also comprises the steps:
-step B2. uses physical layer data described in the second sequence pair to carry out descrambling operation and obtains initial data.
Wherein, the second sequence is pseudo random sequence.
9. a base station equipment, is characterized in that, this equipment comprises:
First module: for determining First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
Second module: send a RS for the given subframe on first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
10. equipment according to claim 9, is characterized in that, the second module also sends physical layer data for the described given subframe on first carrier.Wherein, a RS is the DMRS of described physical layer data.
11. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
First module: for determining First ray, the determination parameter of the initial value of the maker of First ray comprises specific identifier, and described specific identifier is that operator is proprietary
Second module: receive a RS for the given subframe on first carrier.
Wherein, first carrier is deployed in unlicensed spectrum, and First ray is pseudo random sequence, and the RS sequence of a RS is First ray.
12. equipment according to claim 12, is characterized in that, the second module is also for obtaining descending CSI, and the reference resources of described descending CSI comprises a RS.Wherein, by LTE antenna port, { K1 in 15,16,17,18,19,20,21,22} different antenna port sent a RS, and described K1 is { one in 1,2,4,8}.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422599.8A CN105376188B (en) | 2014-08-26 | 2014-08-26 | Scrambling method and device in LAA communication |
| PCT/CN2015/087739 WO2016029823A1 (en) | 2014-08-26 | 2015-08-21 | Scrambling code method and device in laa communication between ue and base station |
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|---|---|---|---|
| CN201410422599.8A CN105376188B (en) | 2014-08-26 | 2014-08-26 | Scrambling method and device in LAA communication |
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| CN105376188B CN105376188B (en) | 2019-08-09 |
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| CN107231693A (en) * | 2016-03-25 | 2017-10-03 | 中兴通讯股份有限公司 | Sending, receiving method, the apparatus and system of uplink information |
| CN107623649A (en) * | 2016-07-15 | 2018-01-23 | 上海朗帛通信技术有限公司 | It is a kind of be wirelessly transferred in method and apparatus |
| CN108111285A (en) * | 2017-11-17 | 2018-06-01 | 中兴通讯股份有限公司 | A kind of method and device of transmission of reference signals |
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| CN114143898A (en) * | 2018-12-10 | 2022-03-04 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
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| CN107231693B (en) * | 2016-03-25 | 2019-03-15 | 中兴通讯股份有限公司 | Sending, receiving method, the apparatus and system of uplink information |
| CN107623649A (en) * | 2016-07-15 | 2018-01-23 | 上海朗帛通信技术有限公司 | It is a kind of be wirelessly transferred in method and apparatus |
| CN107623649B (en) * | 2016-07-15 | 2020-01-03 | 上海朗帛通信技术有限公司 | Method and device in wireless transmission |
| CN108111285A (en) * | 2017-11-17 | 2018-06-01 | 中兴通讯股份有限公司 | A kind of method and device of transmission of reference signals |
| CN108111285B (en) * | 2017-11-17 | 2021-10-26 | 中兴通讯股份有限公司 | Method and device for transmitting reference signal |
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| Publication number | Publication date |
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| CN105376188B (en) | 2019-08-09 |
| WO2016029823A1 (en) | 2016-03-03 |
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