CN105451251B - A kind of DRS configuration method, measurement method and the relevant device of unlicensed spectrum - Google Patents
A kind of DRS configuration method, measurement method and the relevant device of unlicensed spectrum Download PDFInfo
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- CN105451251B CN105451251B CN201510755808.5A CN201510755808A CN105451251B CN 105451251 B CN105451251 B CN 105451251B CN 201510755808 A CN201510755808 A CN 201510755808A CN 105451251 B CN105451251 B CN 105451251B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The DRS configuration method based on unlicensed spectrum that the embodiment of the invention discloses a kind of, comprising: the position of base station configuration discovery reference signal time of measuring configuration DMTC period generates first location information；The base station configures the position of N number of discovery reference signal DRS to be sent within the DMTC period, generates second location information；The base station is the position that each DRS configures one group of initial signal and/or preserved signal in N number of DRS to be sent, generates the third place information；The base station sends to user equipment and carries the first location information, the measuring configuration message of the second location information and the third place information, and the measuring configuration message is used to indicate the user equipment and carries out the measurement based on DRS.The embodiment of the invention also discloses a kind of DRS measurement method, base station and user equipmenies.Using the present invention, accurately the DRS in unlicensed spectrum can be measured.
Description
Technical field
The present invention relates to the communications field more particularly to DRS configuration method, measurement method and the correlations of a kind of unlicensed spectrum
Equipment.
Background technique
With the sharp increase of message volume, 3GPP (3rd Generation Partnership Project, third
For partner program, abbreviation 3GPP) authorize frequency spectrum to seem less and less adequate to provide higher network capacity.In order to further
Improve the utilization of frequency spectrum resource, 3GPP just discussing how with the help of authorize frequency spectrum using unlicensed spectrum, as 2.4GHz with
5GHz frequency range.These unlicensed spectrums are presently mainly WiFi (Wireless Fidelity, Wireless Fidelity, abbreviation WiFi), indigo plant
The systems such as tooth, radar and medical treatment are using.It in general, is the access technology of the design of authorized spectrum band, such as LTE (Long Term
Evolution, long term evolution, abbreviation LTE) be not suitable for using in unauthorized frequency range, because this kind of access technology of LTE is to frequency spectrum
The requirement of efficiency and user experience optimization is very high.However, carrier wave polymerizable functional allow LTE is deployed in that unauthorized frequency range becomes can
Energy.3GPP proposes the concept of LAA (LTEAssistedAccess, LTT auxiliary access, abbreviation LAA), authorizes frequency spectrum by LTE
Help come using unlicensed spectrum.And unlicensed spectrum can be there are two types of working method, one is supplement downlinks
(Supplemental Downlink), i.e. only downlink transfer subframe；Another kind is TDD mode, and uplink and downlink is all transmitted
Subframe all includes.Supplementing downlink such case can only use by carrier aggregation technology.
3GPP is provided at present, DRS (Discovery Reference Signal, the discovery ginseng for RRM measurement of LAA
Examine signal, abbreviation DRS) it can send as follows: in DMTC (the DRS MeasurementTiming periodically occurred
The configuration of Configuration, DRS time of measuring) in the multiple transmittable positions of configuration.Wherein DMTC is the time of a long 6ms
Section, the period occurred is 40ms/80ms/160ms.And the transmittable position of multiple DRS is configured in DMTC 6ms, Mei Geke
Send 12 symbols that position occupies each subframe.And DRS transmission before possibly also send initial signal or
Reservation signal is used for the effects of down-going synchronous and/or channel reservation.And these initial signal or
Reservation signal cannot be greater than 1ms plus the length of 12 symbol of DRS later.So initial signal
Or the length of reservation signal is cannot to be greater than 2 symbol.
From the foregoing, it will be observed that base station needs the position to DMTC and the position of DRS when needing user equipment to measure DRS
It sets and is configured, how to carry out configuration to the position of DMTC and DRS is the hot spot studied at present.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of DRS configuration method of unlicensed spectrum, surveying
Amount method and relevant device.Accurately the DRS sent in unlicensed spectrum can be measured.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of configuration side DRS based on unlicensed spectrum
Method, comprising:
The position of base station configuration discovery reference signal time of measuring configuration DMTC period, generates first location information；Its
In, the duration of the DMTC period is M subframe length, and the primary sign of the DMTC period is the 1st in subframe
Any one of a symbol into the 14th symbol；
The base station configures the position of N number of discovery reference signal DRS to be sent within the DMTC period, generates the
Two location informations；Wherein, each DRS occupies 12 symbols, and each DRS only correspond to a subframe, N < M, and N and M be positive it is whole
Number；
The base station is that each DRS configures one group of initial signal and/or preserved signal in N number of DRS to be sent
Position generates the third place information；Wherein, every group of initial signal and/or preserved signal occupy at most 2 symbols；
The base station sends to user equipment and carries the first location information, the second location information and the third
The measuring configuration message of location information, the measuring configuration message are used to indicate the user equipment and carry out the measurement based on DRS.
Correspondingly, the embodiment of the invention also provides a kind of DRS measurement method based on unlicensed spectrum, comprising:
User equipment receives the survey of carrying first location information, second location information and the third place information that base station is sent
Amount configuration message；Wherein, the first location information indicates the position of DMTC period, described in the second location information expression
The position of the DRS configured in the DMTC period, the third place information indicate the corresponding one group of initial signal of DRS and/or pre-
Stay the position of signal；
The user equipment determines the position of DMTC period according to the first location information, according to the second position
Information determines the position of DRS, and determines the corresponding one group of initial signal of DRS and/or preserved signal according to the third place information
Position；
The user equipment judges in the initial signal and/or preserved signal with the presence or absence of PSS and SSS, and if it exists, root
Down-going synchronous is carried out according to the PSS and SSS；
The user equipment carries out the measurement based on DRS according to the position of the DRS.
Correspondingly, the embodiment of the invention also provides a kind of base stations, comprising:
First configuration module generates for configuring the position of discovery reference signal time of measuring configuration DMTC period
One location information；Wherein, the duration of the DMTC period is M subframe length, the starting character of the DMTC period
Number for any one of the 1st symbol into the 14th symbol in subframe；
Second configuration module, for configuring the position of N number of discovery reference signal DRS to be sent within the DMTC period
It sets, generates second location information；Wherein, each DRS occupies 12 symbols, and each DRS only corresponds to a subframe, N < M, and N
It is positive integer with M；
Third configuration module, for for DRS each in N number of DRS to be sent one group of initial signal of configuration and/or in advance
The position of signal is stayed, the third place information is generated；Wherein, every group of initial signal and/or preserved signal occupy at most 2 symbols；
Sending module carries the first location information, the second location information and institute for sending to user equipment
The measuring configuration message of the third place information is stated, the measuring configuration message is used to indicate the user equipment and carries out based on DRS
Measurement.
Correspondingly, the embodiment of the invention also provides a kind of user equipmenies, comprising:
Receiving module, for receiving carrying first location information, second location information and the third place letter of base station transmission
The measuring configuration message of breath；Wherein, the first location information indicates the position of DMTC period, the second location information table
Show the position of the DRS configured in the DMTC period, the third place information indicates the corresponding one group of initial signal of DRS
The position of preserved signal and/or；
Determining module, for determining the position of DMTC period according to the first location information, according to the second
Confidence ceases the position for determining DRS, and determines the corresponding one group of initial signal of DRS and/or reserved letter according to the third place information
Number position；
Synchronization module, for judging in the initial signal and/or preserved signal with the presence or absence of PSS and SSS, and if it exists,
Down-going synchronous is carried out according to the PSS and SSS；
Measurement module carries out the measurement based on DRS according to the position of the DRS for user equipment.
The implementation of the embodiments of the present invention has the following beneficial effects:
Base station is by configuring the position, the position of DRS and the position of initial signal and/or preserved signal of DMTC period
It sets, generates measuring configuration message, send measuring configuration message to user equipment, indicate user equipment in the specified DMTC period
In the DRS that specifies measure, so that user equipment is accurately obtained the character position of DRS that needs measure, increase the standard of measurement
True property.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow diagram of DRS configuration method based on unlicensed spectrum provided in an embodiment of the present invention；
Fig. 2 is the composition schematic diagram of DRS provided in an embodiment of the present invention；
Fig. 3 is a kind of flow diagram of DRS measurement method based on unlicensed spectrum provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, for a kind of process signal of the DRS configuration method based on unlicensed spectrum provided in an embodiment of the present invention
Figure, in embodiments of the present invention, which comprises
S101, the position of base station configuration DMTC period, generate first location information.
Specifically, each subframe includes 14 symbols in LTE auxiliary access technology, the length of each subframe is 1ms.
The DMTC period is the time interval of certain length, such as: the length of DMTC period is 6ms, and the DMTC period can be week
The appearance of phase property, the period occurred are 40ms, 60ms or 80ms, multiple DRS are configured in each DMTC period, and each
The position of DRS can be identical in the DMTC period, and DRS in user equipment at the appointed time section for carrying out based on DRS's
RRM measurement.The position of base station configuration DMTC period specifically includes: base station determines the position for configuring the first DMTC period, often
The duration of a DMTC period is M subframe length, and 1 subframe lengths are 1ms, i.e. the duration of DMTC period is
M milliseconds, the primary sign of DMTC period can be any one symbol in subframe.For example, the time span of DMTC is upper
The primary sign of the 6ms stated, DMTC period are the first symbol of some subframe.Base station configures the position of first DMTC period
After generate first location information, first location information is used to indicate the location information of DMTC period.
It should be noted that different establish a capital of subframe that DMTC is occupied is complete subframe, it also may include the subframe of part,
I.e. the DMTC period also may include the partial symbols in some subframe, and the present invention is with no restriction.
S102, base station configure the position of N number of DRS to be sent within the DMTC period, generate second location information.
Specifically, base station side N number of DRS to be sent needs to be mapped in the M subframe of DMTC period, base station will be N number of
DRS is respectively mapped in the DMTC period in corresponding subframe, and each DRS occupies 12 symbols, and each DRS only corresponds to one
Subframe.Wherein, each DRS must map in the complete subframe (14 symbols) for including in the DMTC period, and each DRS is accounted for
With 12 symbols in complete subframe, the quantity N of DRS to be sent is less than or equal to the complete subframe in the DMTC period
Quantity.After the map operation of N number of DRS is completed in base station, second location information is generated, second location information is for indicating DRS N number of
Position in the DMTC period.
S103, the base station are that each DRS configures one group of initial signal and/or preserved signal in N number of DRS to be sent
Position generates the third place information.
Specifically, base station is that each DRS configures one group of initial signal initial signal and/or reserved letter in N number of DRS
Number reservation signal, wherein the symbol that every group of initial signal and/or preserved signal occupy is located at corresponding DRS and accounts for
Before symbol, and every group of initial signal and/or preserved signal at most occupy 2 symbols, i.e. every group of initial signal and/or
Preserved signal can occupy 2 symbols, 1 symbol or 0 symbol, it should be noted that every group of initial signal and/or reserved letter
Number occupy symbol be not limited to integer symbol, partial symbols can be only taken up.
S104, base station are sent to user equipment carries first location information, second location information and the third place information
Measuring configuration message, measuring configuration message are used to indicate user equipment and carry out the measurement based on DRS.
Specifically, base station is sent to user equipment carries first location information, second location information and the third place information
Measuring configuration message, first location information is used to indicate the position of DMTC, and user equipment can be true according to first location information
Determine the position of DMTC and determine the position of subsequent DMTC according to the appearance period of DMTC, user equipment is according to second confidence
Cease the position for determining base station side N number of DRS to be sent, to measure in corresponding subframe position to each DRS, Yong Hushe
The standby position that the corresponding one group of initial signal of each DRS and/or preserved signal are determined according to the third place information, initial signal
And/or preserved signal is for carrying out down-going synchronous and channel reservation.User equipment completes the measurement to each DRS in DMTC
Afterwards, to base station report measurement results.
Implement the embodiment of the present invention, base station is by configuring position and the initial signal of the position of DMTC period, DRS
And/or the position of preserved signal, measuring configuration message is generated, measuring configuration message is sent to user equipment, indicates user equipment
The DRS specified in the specified DMTC period is measured, and user equipment is made accurately to obtain the symbol for needing the DRS measured
Position increases the accuracy of measurement.
Optionally, each DRS occupies the 1st symbol in 1 subframe to the 12nd symbol in N number of DRS to be sent
Number；Or the 2nd symbol is to the 13rd symbol；Or the 3rd symbol is to the 14th symbol.
Specifically, each DRS occupies 12 continuous symbols in a subframe in N number of DRS to be sent, due to each
Subframe includes 14 symbols, therefore the mode occupied is divided into the 1st symbol in three kinds: DRS occupancy subframe to the 12nd symbol,
Totally 12 symbols；DRS occupies the 2nd symbol in subframe to the 13rd symbol, totally 12 symbols；DRS occupies the 3rd symbol extremely
14th symbol, totally 12 symbols.
Wherein, the position of subframe of each DRS in DMTC is identical in N number of DRS, i.e. occupancy of the DRS in subframe 12
The position of symbol is identical.
Optionally, in N number of DRS the corresponding one group of initial signal of first DRS and/or preserved signal occupy it is described first
The last one or two symbols of a upper subframe for the subframe where DRS, and the primary sign of the DMTC period with it is described
The primary sign of subframe where first DRS is overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the first DRS and occupy in N number of DRS
Subframe a upper subframe the last one or two symbols, and the primary sign of the DMTC period and a upper subframe
Primary sign be overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the first DRS and occupy in N number of DRS
Subframe a upper subframe the last one or two symbols in, and the primary sign of the DMTC period and described upper one sub
Initial signal and/or the primary sign of preserved signal are overlapped in frame.
Specifically, the position of base station configuration DMTC is divided into following three kinds:
One, N number of DRS is ranked up by base station according to transmission sequence, and base station configures the position of first DRS, determines first DRS
The subframe of occupancy configures one group of initial signal and/or preserved signal, this group of initial signal and/or preserved signal position for first DRS
In in the last one or two symbols of a upper subframe for the subframe that first DRS is occupied, and the primary sign of DMTC period with
The primary sign of subframe where first DRS is overlapped, i.e. the DMTC period endless all standing initial signal and/or reserved letter
Number.Correspondingly, referring to the mapping of first DRS when base station carries out mapping subframe position to other DRS for removing first DRS in N number of DRS
Method: for the subframe that subsequent each DRS is occupied from the first symbol of the subframe or the 2nd sign-on, each DRS is one group corresponding
Initial signal and/or preserved signal are located in last 1 or 2 symbols of a upper subframe.
Two, N number of DRS is ranked up by base station according to transmission sequence, and base station configures the position of first DRS, determines first DRS
The subframe of occupancy configures one group of initial signal and/or preserved signal, this group of initial signal and/or preserved signal position for first DRS
In in the last one or two symbols of a upper subframe for the subframe that first DRS is occupied, and the primary sign of DMTC period with
The primary sign of a upper subframe is overlapped, i.e. the DMTC period is completely covered the corresponding one group of initial signal of first DRS and/or reserves
Signal.Correspondingly, when the position of first DRS is removed in base station in configuring N number of DRS, the corresponding initial signal of subsequent each DRS and/
Or preserved signal is located in one or two last symbol of a upper subframe.
Three, N number of DRS is ranked up by base station according to transmission sequence, and base station configures the position of first DRS, determines first DRS
The subframe of occupancy configures one group of initial signal and/or preserved signal, this group of initial signal and/or preserved signal position for first DRS
In in the last one or two symbols of a upper subframe for the subframe that first DRS is occupied, and the primary sign of DMTC period with
The primary sign of initial signal and/or preserved signal in a upper subframe is overlapped, i.e. the DMTC period is completely covered first DRS pairs
The initial signal and/or preserved signal answered.Correspondingly, when the position of first DRS is removed in base station in configuring N number of DRS, it is subsequent each
The corresponding initial signal of DRS and/or preserved signal are in the last one or two symbols of a upper subframe.
It should be noted that the corresponding one group of initial signal of each DRS and/or preserved signal are not limited to occupy integer
Symbol can also occupy partial symbols, or even be not take up any symbol, i.e., do not configure initial signal and/or reserved letter for DRS
Number.
Optionally, the 1st symbol, the 5th symbol in 12 symbols that each DRS is occupied in N number of DRS to be sent
Number, the 8th symbol and the 12nd symbol be at least assigned CRS port0；Or
1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are assigned CRS port1；And/or
2nd symbol, the 9th symbol are assigned CRS port 2 and CRS port3；And/or
6th symbol is assigned SSS, and the 7th symbol is assigned PSS；And/or
10th symbol, the 11st symbol are assigned ZP CSI-RS and/or NZP CSI-RS.
Specifically, each DRS occupies 12 continuous symbols in subframe, DRS is occupied according to the sequencing of time
12 symbols be numbered: the 1st symbol to the 12nd symbol, the signal type of above-mentioned 12 symbols configuration institute referring to fig. 2
Show:
1st, 5,8,12 symbol at least CRS port 0 (Cell specific Reference Signal
Port0, cell special reference port 0, abbreviation CRS port0) transmission, may have 1 (Cell of CRS port
Specific Reference Signal port1, cell special reference port 1, abbreviation CRS port1) transmission, and
If there is the transmission of CRS port 1,4 symbols just have.
2nd, 9 symbol may send CRS port 2 (Cell specific Reference Signal port2, it is small
Area DRS (Dedicated Reference Signal) port 2, abbreviation CRS port2) and CRS port3 (Cell specific ReferenceSignal
Port3, cell special reference port 3, abbreviation CRS port3), or have in addition to CRS port 2 and CRS port3
Reference signal synchronization signal or new signal filling.And if having CRS port 2 and CRS port3 transmission, this 2 symbols
Just have, wherein port0 indicates that antenna port 0, port1 indicate that antenna port 1, port2 indicate antenna port 2, port3 table
Show antenna port 3.
3rd, 4 symbol may have CRS port 0, CRS port 0/1, CRS port 2, in CRS port 2/3
One or more or NZP CSI-RS (Non Zero Power Channel State Information Reference
Signal, non-zero power channel state information reference signals, abbreviation NZP CSI-RS) one or more, one of SSS/PSS
Or multiple or new signal filling；
The intermediate 6RB bandwidth of 6th symbol sends SSS (Secondary Synchronization Signal, auxiliary synchronization
Signal, abbreviation SSS)；
The intermediate 6RB bandwidth of 7th symbol sends PSS (Primary Synchronization Signal, main synchronous letter
Number, abbreviation PSS)；
10th, 11 is used to send ZP CSI-RS (Zero Power Channel State Information
Reference Signal, zero power channel status information reference signal, abbreviation ZP CSI-RS) and/or NZP CSI-RS (Non
Zero Power Channel State Information Reference Signal, non-zero power channel state information ginseng
Examine signal, abbreviation NZP CSI-RS).
Optionally, the method also includes:
It is the symbol former configuration CCA period that the base station is occupied in every group of initial signal and/or preserved signal, described
The CCA period for detecting channel status, and the initial position of CCA period at a distance from the initial position of corresponding DRS extremely
Mostly 2 symbols.
Specifically, base station is every group of initial signal and/or the one CCA time of symbol former configuration that preserved signal occupies
Section, the length of CCA period have following limitation: CCA period, initial signal and/or preserved signal occupy at most two symbols,
That is the initial position of CCA period is at most 2 symbols at a distance from the initial position of corresponding DRS, such as the CCA period
Length is 25us.The CCA period detects channel status for base station, and base station detects that unlicensed spectrum is believed within the CCA period
Road is idle state, then can send the initial signal configured below and/or preserved signal, then retransmits corresponding DRS.Such as
The starting point of fruit DRS does not detect that unlicensed spectrum channel is idle state before starting, then cannot send DRS；If just
It detects that unlicensed spectrum channel is idle state within the period of the CCA time segment length before the starting point of DRS, does not then have to
Initial signal and/or preserved signal are sent, DRS is directly transmitted.
Referring to Fig. 3, for a kind of process signal of the DRS measurement method based on unlicensed spectrum provided in an embodiment of the present invention
Figure, in embodiments of the present invention, which comprises
S301, user equipment receive carrying first location information, second location information and the third place letter that base station is sent
The measuring configuration message of breath；Wherein, the first location information indicates the position of DMTC period, the second location information table
Show the position of the DRS configured in the DMTC period, the third place information indicates the corresponding one group of initial signal of DRS
The position of preserved signal and/or.
Specifically, DRS configuration is within the DMTC period, each DRS is configured with one group of initial signal and/or preserved signal,
The position of base station configuration DMTC period is divided into two kinds of situations: the corresponding initial letter of the first DRS of DMTC period endless all standing
Number and/or preserved signal；Or the corresponding initial signal of first DRS and/or preserved signal is completely covered in the DMTC period.
S302, the user equipment determine the position of DMTC period according to the first location information, according to described
Two location informations determine the position of DRS, and determine the corresponding one group of initial signal of DRS and/or pre- according to the third place information
Stay the position of signal.
S303, the user equipment judge with the presence or absence of PSS and SSS in the initial signal and/or preserved signal, if depositing
Down-going synchronous is being carried out according to the PSS and SSS.
Specifically, the case where the DMTC period the corresponding initial signal of first DRS and/or preserved signal being completely covered
Under: after user equipment receives measuring configuration message, parses and whether there is PSS and SSS in initial signal and/or preserved signal,
If it exists, user equipment carries out downlink basic synchronization according to the time configuration information in initial signal and/or preserved signal；If no
In the presence of, user equipment can only PSS in blind examination in DRS and SSS obtain down-going synchronous, after the completion of down-going synchronous, user equipment
The position that the primary sign of DRS and 12 symbols of DRS occupancy are found according to second location information, then according to measuring configuration
Configuration method in message measures DRS.
In the case where the corresponding initial signal of the first DRS of DMTC period endless all standing and/or preserved signal: user
After equipment receives measuring configuration message, the position of DMTC period is determined according to first location information, obtains the DMTC period
Primary sign, since the primary sign of DMTC period, user equipment in the DMTC period each symbol carry out it is blind
Inspection, detects the character position of the PSS and SSS in DRS, so that downlink basic synchronization is obtained, after the completion of down-going synchronous, Yong Hushe
The standby position that the primary sign of DRS and 12 symbols of DRS occupancy are found according to second location information, then matches according to measurement
The configuration method set in message measures DRS.Because in this case, the initial position of DMTC period is not initially to believe
Number and/or preserved signal initial position or DRS initial position, so each symbol is needed to carry out blind examination.
S304, the user equipment carry out the measurement based on DRS according to the position of the DRS.
Specifically, user equipment determines the character position in the DMTC period according to the position of DRS, according to the DMTC time
The DRS that designated symbols are mapped in section is measured, and the measurement method present invention is with no restriction.
Implement the embodiment of the present invention, base station is by configuring position and the initial signal of the position of DMTC period, DRS
And/or the position of preserved signal, measuring configuration message is generated, user receives measuring configuration message, according to measuring configuration message
It indicates that the DRS specified in the specified DMTC period is measured, user equipment is made accurately to obtain the DRS's for needing to measure
Character position increases the accuracy of measurement.
Optionally, the method also includes:
If PSS and SSS is not present in the initial signal and/or preserved signal, the user equipment is carried out described in blind examination
PSS and SSS in DRS is to obtain down-going synchronous.
It referring to fig. 4, is a kind of structural schematic diagram of base station provided in an embodiment of the present invention, in embodiments of the present invention, base
Stand 4 include the first configuration module 401, the second configuration module 402, third configuration module 403 and sending module 404.
First configuration module 401 generates first for configuring the position of discovery reference signal time of measuring DMTC period
Location information；Wherein, the duration of the DMTC period is M subframe length, the primary sign of the DMTC period
For any one of the 1st symbol into the 14th symbol in subframe.
Second configuration module 402, for configuring N number of discovery reference signal DRS to be sent within the DMTC period
Position, generate second location information；Wherein, each DRS occupies 12 symbols, and each DRS only corresponds to a subframe, N < M,
And N and M is positive integer.
Third configuration module 403, for for DRS each in N number of DRS to be sent configure one group of initial signal and/
Or the position of preserved signal, generate the third place information；Wherein, every group of initial signal and/or preserved signal occupy at most 2 symbols
Number.
Sending module carries the first location information, the second location information and institute for sending to user equipment
The measuring configuration message of the third place information is stated, the measuring configuration message is used to indicate the user equipment and carries out based on DRS
Measurement.
Optionally, each DRS occupies the 1st symbol in 1 subframe to the 12nd symbol in N number of DRS to be sent
Number；Or the 2nd symbol is to the 13rd symbol；Or the 3rd symbol is to the 14th symbol.
Optionally, in N number of DRS the corresponding one group of initial signal of first DRS and/or preserved signal occupy it is described first
In the last one or two symbols of a upper subframe for the subframe where DRS, and the primary sign of the DMTC period and institute
The primary sign for stating the subframe where first DRS is overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the first DRS and occupy in N number of DRS
Subframe a upper subframe the last one or two symbols in, and the primary sign of the DMTC period and described upper one sub
The primary sign of frame is overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the first DRS and occupy in N number of DRS
Subframe a upper subframe the last one or two symbols in, and the primary sign of the DMTC period and described upper one sub
Initial signal and/or the primary sign of preserved signal are overlapped in frame.
Optionally, the 1st symbol, the 5th symbol in 12 symbols that each DRS is occupied in N number of DRS to be sent
Number, the 8th symbol and the 12nd symbol be at least assigned CRS port0；Or
1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are assigned CRS port1；And/or
2nd symbol, the 9th symbol are assigned CRS port 2 and CRS port3；And/or
6th symbol is assigned SSS, and the 7th symbol is assigned PSS；And/or
10th symbol, the 11st symbol are assigned ZP CSI-RS and/or NZP CSI-RS.
Optionally, base station 4 further include:
4th configuration module, for the symbol former configuration CCA time in every group of initial signal and/or preserved signal occupancy
Section, the CCA period is for detecting channel status, and the initial position of CCA period and the initial position of corresponding DRS
Distance is at most 2 symbols.
The embodiment of the present invention and the embodiment of Fig. 1 are based on same design, and bring technical effect is also identical, detailed process
The explanation of the embodiment of Fig. 1 is please referred to, details are not described herein again.
It is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention, in the embodiment of the present invention referring to Fig. 5
In, user equipment 5 includes: receiving module 501, determining module 502, synchronization module 503 and measurement module 504.
Receiving module 501, for receiving carrying first location information, second location information and the third place of base station transmission
The measuring configuration message of information；Wherein, the first location information indicates the position of DMTC period, the second location information
Indicate the position of the DRS configured in the DMTC period, the third place information indicates the corresponding one group of initial signal of DRS
The position of preserved signal and/or.
Determining module 502, for determining the position of DMTC period according to the first location information, according to described second
Location information determines the position of DRS, and determines the corresponding one group of initial signal of DRS according to the third place information and/or reserve
The position of signal.
Synchronization module 503, for judging with the presence or absence of PSS and SSS in the initial signal and/or preserved signal, if depositing
Down-going synchronous is being carried out according to the PSS and SSS.
Measurement module carries out the measurement based on DRS according to the position of the DRS for user equipment.
Optionally, user equipment 5 further include:
Blind examination module, if being carried out described in blind examination for PSS and SSS to be not present in the initial signal and/or preserved signal
PSS and SSS in DRS is to obtain down-going synchronous.
The embodiment of the present invention and the embodiment of Fig. 3 are based on same design, and bring technical effect is also identical, detailed process
It can refer to the explanation of the embodiment of Fig. 3, details are not described herein again.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (RandomAccess
Memory, RAM) etc..
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (12)
1. a kind of DRS configuration method based on unlicensed spectrum characterized by comprising
The position of base station configuration discovery reference signal time of measuring configuration DMTC period, generates first location information；Wherein, institute
The duration for stating the DMTC period is M subframe length, and the primary sign of the DMTC period is the 1st symbol in subframe
Any one into the 14th symbol；
The base station configures the position of N number of discovery reference signal DRS to be sent within the DMTC period, generates second
Confidence breath；Wherein, each DRS occupies 12 symbols, and it is positive integer that each DRS, which only corresponds to a subframe, N < M, and N and M,；
The base station is the position that each DRS configures one group of initial signal and/or preserved signal in N number of DRS to be sent,
Generate the third place information；Wherein, every group of initial signal and/or preserved signal occupy at most 2 symbols, every group of initial signal
And/or the symbol former configuration idle channel that preserved signal occupies detects the CCA period, the CCA period is for detecting letter
Road state, and the initial position of CCA period is at most 2 symbols at a distance from the initial position of corresponding DRS；
The base station sends to user equipment and carries the first location information, the second location information and the third place
The measuring configuration message of information, the measuring configuration message are used to indicate the user equipment and carry out the measurement based on DRS；
The method also includes:
If detecting unauthorized frequency within the period with the equal length of the CCA period before the initial position of DRS
Spectrum channel is idle state, and the base station directly transmits DRS no need to send initial signal and/or preserved signal.
2. the method as described in claim 1, which is characterized in that each DRS occupies 1 subframe in N number of DRS to be sent
In the 1st symbol to the 12nd symbol；Or the 2nd symbol is to the 13rd symbol；Or the 3rd symbol is to the 14th symbol.
3. the method as described in claim 1, which is characterized in that the corresponding one group of initial signal of first DRS in N number of DRS
And/or preserved signal occupies in the last one or two symbols of a upper subframe for the subframe where the first DRS, and described
The primary sign of DMTC period is overlapped with the primary sign of the subframe where the first DRS；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the son that the first DRS is occupied in N number of DRS
In the last one or two symbols of a upper subframe for frame, and the primary sign of the DMTC period and a upper subframe
Primary sign is overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the son that the first DRS is occupied in N number of DRS
In the last one or two symbols of a upper subframe for frame, and in the primary sign of the DMTC period and a upper subframe
Initial signal and/or the primary sign of preserved signal are overlapped.
4. method according to claim 2, which is characterized in that each DRS is occupied in N number of DRS to be sent 12
The 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned cell special reference port in symbol
0CRS port0；And/or
1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are assigned cell special reference port
1CRSport1；And/or
2nd symbol, the 9th symbol are assigned cell special reference port 2CRS port 2 and port 3CRS port3；
And/or
6th symbol is assigned secondary synchronization signal SSS, and the 7th symbol is assigned primary synchronization signal PSS；And/or
10th symbol, the 11st symbol are assigned zero power channel status information reference signal ZP CSI-RS and/or non-zero power
Rate channel status reference signal NZP CSI-RS.
5. a kind of DRS measurement method based on unlicensed spectrum characterized by comprising
The measurement that user equipment receives carrying first location information, second location information and the third place information that base station is sent is matched
Set message；Wherein, the first location information indicates the position of DMTC period, and the second location information indicates the DMTC
The position of the DRS configured in period, the third place information indicate the corresponding one group of initial signal of DRS and/or reserved letter
Number position；
The user equipment determines the position of DMTC period according to the first location information, according to the second location information
It determines the position of DRS, and determines the position of the corresponding one group of initial signal of DRS and/or preserved signal according to the third place information
It sets；Wherein, the symbol former configuration idle channel that every group of initial signal and/or preserved signal occupy detects the CCA period, described
The CCA period for detecting channel status, and the initial position of CCA period at a distance from the initial position of corresponding DRS extremely
Mostly 2 symbols；
If receiving initial signal and/or preserved signal, the user equipment judges in the initial signal and/or preserved signal
With the presence or absence of PSS and SSS, and if it exists, carry out down-going synchronous according to the PSS and SSS；
The user equipment carries out the measurement based on DRS according to the position of the DRS；Or
If detecting unauthorized frequency within the period with the equal length of the CCA period before the initial position of DRS
Spectrum channel is idle state, and the user equipment receives the DRS from the base station, will not receive initial signal and/or pre-
Stay signal.
6. method as claimed in claim 5, which is characterized in that further include:
If PSS and SSS is not present in the initial signal and/or preserved signal, the user equipment is carried out in DRS described in blind examination
PSS and SSS to obtain down-going synchronous.
7. a kind of base station characterized by comprising
First configuration module generates first for configuring the position of discovery reference signal time of measuring configuration DMTC period
Confidence breath；Wherein, the duration of the DMTC period is M subframe length, and the primary sign of the DMTC period is
Any one of 1st symbol into the 14th symbol in subframe；
Second configuration module, for configuring the position of N number of discovery reference signal DRS to be sent within the DMTC period,
Generate second location information；Wherein, each DRS occupies 12 symbols, and each DRS only corresponds to a subframe, N < M, and N and M
For positive integer；The symbol former configuration idle channel that every group of initial signal and/or preserved signal occupy detects CCA period, institute
The CCA period is stated for detecting channel status, and the initial position of CCA period is at a distance from the initial position of corresponding DRS
It is at most 2 symbols；
Third configuration module, for configuring one group of initial signal and/or reserved letter for DRS each in N number of DRS to be sent
Number position, generate the third place information；Wherein, every group of initial signal and/or preserved signal occupy at most 2 symbols；
Sending module carries the first location information, the second location information and described for sending to user equipment
The measuring configuration message of three location informations, the measuring configuration message are used to indicate the user equipment and carry out the survey based on DRS
Amount；
The sending module, if being also used to the time with the equal length of the CCA period before the initial position of DRS
Detect that unlicensed spectrum channel is idle state in section, no need to send initial signal and/or preserved signals, directly transmit
DRS。
8. base station as claimed in claim 7, which is characterized in that each DRS occupies 1 subframe in N number of DRS to be sent
In the 1st symbol to the 12nd symbol；Or the 2nd symbol is to the 13rd symbol；Or the 3rd symbol is to the 14th symbol.
9. base station as claimed in claim 7, which is characterized in that the corresponding one group of initial signal of first DRS in N number of DRS
And/or preserved signal occupies in the last one or two symbols of a upper subframe for the subframe where the first DRS, and described
The primary sign of DMTC period is overlapped with the primary sign of the subframe where the first DRS；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the son that the first DRS is occupied in N number of DRS
In the last one or two symbols of a upper subframe for frame, and the primary sign of the DMTC period and a upper subframe
Primary sign is overlapped；Or
The corresponding one group of initial signal of first DRS and/or preserved signal are located at the son that the first DRS is occupied in N number of DRS
In the last one or two symbols of a upper subframe for frame, and in the primary sign of the DMTC period and a upper subframe
Initial signal and/or the primary sign of preserved signal are overlapped.
10. base station as claimed in claim 8, which is characterized in that each DRS is occupied in N number of DRS to be sent 12
The 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned cell special reference port in symbol
0CRS port0；And/or
1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are assigned cell special reference port 1CRS
port1；And/or
2nd symbol, the 9th symbol are assigned cell special reference port 2CRS port 2 and port 3CRS port3；
And/or
6th symbol is assigned secondary synchronization signal SSS, and the 7th symbol is assigned primary synchronization signal PSS；And/or
10th symbol, the 11st symbol are assigned zero power channel status information reference signal ZP CSI-RS and/or non-zero power
Rate channel status reference signal NZP CSI-RS.
11. a kind of user equipment characterized by comprising
Receiving module, for receiving the carrying first location information of base station transmission, second location information and the third place information
Measuring configuration message；Wherein, the first location information indicates the position of DMTC period, and the second location information indicates institute
State the position of the DRS configured in the DMTC period, the third place information indicate the corresponding one group of initial signal of DRS and/or
The position of preserved signal；
Determining module, for determining the position of DMTC period according to the first location information, according to the second confidence
The position for determining DRS is ceased, and the corresponding one group of initial signal of DRS and/or preserved signal are determined according to the third place information
Position；Wherein, the symbol former configuration idle channel that every group of initial signal and/or preserved signal occupy detects CCA period, institute
The CCA period is stated for detecting channel status, and the initial position of CCA period is at a distance from the initial position of corresponding DRS
It is at most 2 symbols；
Synchronization module, if judging the initial signal and/or preserved signal for receiving initial signal and/or preserved signal
In whether there is PSS and SSS, and if it exists, down-going synchronous is carried out according to the PSS and SSS；
Measurement module carries out the measurement based on DRS according to the position of the DRS for user equipment；Or
If detecting unauthorized frequency within the period with the equal length of the CCA period before the initial position of DRS
Spectrum channel is idle state, receives the DRS from the base station, will not receive initial signal and/or preserved signal.
12. user equipment as claimed in claim 11, which is characterized in that further include:
Blind examination module, if being carried out in DRS described in blind examination for PSS and SSS to be not present in the initial signal and/or preserved signal
PSS and SSS to obtain down-going synchronous.
Priority Applications (2)
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| CN201510755808.5A CN105451251B (en) | 2015-11-06 | 2015-11-06 | A kind of DRS configuration method, measurement method and the relevant device of unlicensed spectrum |
| PCT/CN2016/072868 WO2017075922A1 (en) | 2015-11-06 | 2016-01-29 | Unlicensed frequency spectrum drs configuration method, measurement method and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510755808.5A CN105451251B (en) | 2015-11-06 | 2015-11-06 | A kind of DRS configuration method, measurement method and the relevant device of unlicensed spectrum |
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| CN107294686A (en) | 2016-04-01 | 2017-10-24 | 中兴通讯股份有限公司 | Detection reference signal sending, receiving method, device, UE and base station |
| TWI636700B (en) * | 2016-05-13 | 2018-09-21 | 諾基亞科技公司 | Maximum time for unlicensed secondary cell detection, measurements and activation in licensed assisted access |
| CN107770804B (en) * | 2016-08-22 | 2021-04-13 | 北京佰才邦技术有限公司 | Adjacent cell channel measurement method, device, terminal and base station |
| TWI616111B (en) * | 2016-12-23 | 2018-02-21 | 財團法人工業技術研究院 | Method for scheduling radio resource in unlicensed spectrum and base station using thereof |
| US10951285B2 (en) | 2017-01-06 | 2021-03-16 | Futurewei Technologies, Inc. | Hybrid mobility and radio resource management mechanisms |
| WO2018137205A1 (en) * | 2017-01-25 | 2018-08-02 | 华为技术有限公司 | Method, device and system for transmitting control channel |
| CN111148263B (en) * | 2017-05-05 | 2021-04-09 | 华为技术有限公司 | Method and device for transmitting data |
| CN110166393B (en) * | 2018-02-13 | 2021-06-25 | 展讯通信（上海）有限公司 | Method and device for sending and receiving synchronization signal block |
| CN110933764B (en) * | 2018-09-20 | 2022-03-11 | 维沃移动通信有限公司 | Transmission method of transmission indication signal, network equipment and terminal |
| KR20210111828A (en) * | 2019-01-10 | 2021-09-13 | 베이징 시아오미 모바일 소프트웨어 컴퍼니 리미티드 | Method and apparatus for establishment, transmission and reception of discovery reference signal (DRS) |
| CN110035028B (en) * | 2019-03-29 | 2020-02-21 | 宇龙计算机通信科技(深圳)有限公司 | Synchronous signal transmission method and device based on unauthorized frequency spectrum and storage medium |
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