CN105451251A - DRS configuration method, measurement method and related equipment for unlicensed frequency spectrum - Google Patents
DRS configuration method, measurement method and related equipment for unlicensed frequency spectrum Download PDFInfo
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- CN105451251A CN105451251A CN201510755808.5A CN201510755808A CN105451251A CN 105451251 A CN105451251 A CN 105451251A CN 201510755808 A CN201510755808 A CN 201510755808A CN 105451251 A CN105451251 A CN 105451251A
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Abstract
The embodiment of the invention discloses a DRS configuration method for an unlicensed frequency spectrum. The method comprises the steps of finding out the location of a DMTC period of time during the measurement period of a reference signal through the configuration of a base station to generate a first location information; configuring a location of finding out N to-be-sent reference signals DRS by the base station within the DMTC period of time to generate a second location information; arranging a location of a set of initial signals and/or reserved signals for each DRS out of N to-be-sent DRS signals by the base station to generate a third location information; sending a measurement configuration message containing the first location information, the second location information and the third location information to user equipment by the base station, wherein the measurement configuration message is used for indicating the user equipment to conduct the DRS-based measurement. The embodiment of the invention also discloses a DRS measurement method, the base station and the user equipment. According to the technical scheme of the invention, the DRS within the unlicensed frequency spectrum can be measured accurately.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of DRS collocation method of unlicensed spectrum, method of measurement and relevant device.
Background technology
Along with the sharply increase of message volume, 3GPP (3rdGenerationPartnershipProject, third generation partner program are called for short 3GPP) authorizes frequency spectrum to seem and is more and more not enough to provide higher network capacity.In order to improve the utilization of frequency spectrum resource further, 3GPP is just discussing how under the help of authorizing frequency spectrum, to use unlicensed spectrum, as 2.4GHz and 5GHz frequency range.The systems such as the current mainly WiFi of these unlicensed spectrums (WirelessFidelity, Wireless Fidelity are called for short WiFi), bluetooth, radar and medical treatment are in use.In general, the access technology designed for authorizing frequency range, as LTE (LongTermEvolution, Long Term Evolution, be called for short LTE) be not suitable for using in unauthorized frequency range, because the requirement that this kind of access technology of LTE is optimized spectrum efficiency and Consumer's Experience is very high.But carrier aggregation function allows and LTE is deployed in unauthorized frequency range becomes possibility.3GPP proposes the concept of LAA (the auxiliary access of LTEAssistedAccess, LTT, is called for short LAA), authorizes the help of frequency spectrum to use unlicensed spectrum by LTE.And unlicensed spectrum can have two kinds of working methods, one is supplementary descending (SupplementalDownlink), namely only has downlink transfer subframe; Another kind is TDD mode, and upper and lower provisional capital transmission subframe all comprises.Supplementing descending this situation can only be use by carrier aggregation technology.
Current 3GPP regulation, DRS (the DiscoveryReferenceSignal measured for RRM of LAA, find reference signal, be called for short DRS) can send as follows: in the DMTC (configuration of DRSMeasurementTimingConfiguration, DRS Measuring Time) periodically occurred, configuration is multiple sends position.Wherein DMTC is the time period of a long 6ms, and its cycle occurred is 40ms/80ms/160ms.And in DMTC6ms, configure the sent position of multiple DRS, eachly send 12 symbols that position takies each subframe.And before DRS sends, also may send initialsignal or reservationsignal for down-going synchronous and or the effect such as channel reservation.And these initialsignal or reservationsignal can not be greater than 1ms after adding the length of DRS12 symbol.So the length of initialsignal or reservationsignal to be greater than 2symbol.
As from the foregoing, when needs subscriber equipment is measured DRS, base station needs to be configured the position of DMTC and the position of DRS, and how to be configured the position of DMTC and DRS is the focus studied at present.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of DRS collocation method of unlicensed spectrum, method of measurement and relevant device.Can measure the DRS that unlicensed spectrum sends accurately.
In order to solve the problems of the technologies described above, embodiments provide a kind of DRS collocation method based on unlicensed spectrum, comprising:
Base station configuration finds the position of reference signal Measuring Time configuration DMTC time period, generates primary importance information; Wherein, the duration of described DMTC time period is M subframe length, the primary sign of described DMTC time period be in subframe the 1st symbol to any one in the 14th symbol;
Described base station configures the position of N number of discovery reference signal DRS to be sent within the described DMTC time period, generates second place information; Wherein, each DRS takies 12 symbols, and each DRS only corresponding subframe, N<M, and N and M is positive integer;
Described base station is the position that in described N number of DRS to be sent, each DRS configures one group of initialize signal and/or preserved signal, generates the 3rd positional information; Wherein, often group initialize signal and/or preserved signal take 2 symbols at the most;
Described base station sends to subscriber equipment and carries the measurement configuration messages of described primary importance information, described second place information and described 3rd positional information, and described measurement configuration messages is used to indicate the measurement that described subscriber equipment carries out based on DRS.
Accordingly, the embodiment of the present invention additionally provides a kind of DRS method of measurement based on unlicensed spectrum, comprising:
Subscriber equipment receives the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal;
Described subscriber equipment is determined the position of DMTC time period according to described primary importance information, is determined the position of DRS according to described second place information, and determines the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information;
Described subscriber equipment judges whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carries out down-going synchronous according to described PSS and SSS;
Described subscriber equipment carries out the measurement based on DRS according to the position of described DRS.
Accordingly, the embodiment of the present invention additionally provides a kind of base station, comprising:
First configuration module, for configuring the position finding the reference signal Measuring Time configuration DMTC time period, generates primary importance information; Wherein, the duration of described DMTC time period is M subframe length, the primary sign of described DMTC time period be in subframe the 1st symbol to any one in the 14th symbol;
Second configuration module, for configuring the position of N number of discovery reference signal DRS to be sent within the described DMTC time period, generates second place information; Wherein, each DRS takies 12 symbols, and each DRS only corresponding subframe, N<M, and N and M is positive integer;
3rd configuration module, for configuring the position of one group of initialize signal and/or preserved signal for each DRS in described N number of DRS to be sent, generates the 3rd positional information; Wherein, often group initialize signal and/or preserved signal take 2 symbols at the most;
Sending module, carries the measurement configuration messages of described primary importance information, described second place information and described 3rd positional information for sending to subscriber equipment, and described measurement configuration messages is used to indicate the measurement that described subscriber equipment carries out based on DRS.
Accordingly, the embodiment of the present invention additionally provides a kind of subscriber equipment, comprising:
Receiver module, for receiving the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal;
Determination module, for determining the position of DMTC time period according to described primary importance information, determining the position of DRS according to described second place information, and determines the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information;
Synchronization module, for judging whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carries out down-going synchronous according to described PSS and SSS;
Measurement module, for the measurement that subscriber equipment carries out based on DRS according to the position of described DRS.
Implement the embodiment of the present invention, there is following beneficial effect:
Base station is by the position of the configuration position of DMTC time period, the position of DRS and initialize signal and/or preserved signal, generate and measure configuration messages, send to subscriber equipment and measure configuration messages, the DRS that equipment for indicating user is specified in the DMTC time period of specifying measures, make subscriber equipment obtain the character position needing the DRS measured accurately, increase the accuracy measured.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of DRS collocation method based on unlicensed spectrum that the embodiment of the present invention provides;
Fig. 2 is the composition schematic diagram of the DRS that the embodiment of the present invention provides;
Fig. 3 is the schematic flow sheet of a kind of DRS method of measurement based on unlicensed spectrum that the embodiment of the present invention provides;
Fig. 4 is the structural representation of a kind of base station that the embodiment of the present invention provides;
Fig. 5 is the structural representation of a kind of subscriber equipment that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, be the schematic flow sheet of a kind of DRS collocation method based on unlicensed spectrum that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
S101, the position of base station configuration DMTC time period, generate primary importance information.
Concrete, assist in access technology at LTE, each subframe comprises 14 symbols, and the length of each subframe is 1ms.The DMTC time period is the time interval of certain length, such as: the length of DMTC time period is 6ms, the DMTC time period can be periodically occur, its cycle occurred is 40ms, 60ms or 80ms, the multiple DRS of configuration in each DMTC time period, and the position of DRS can be identical in each DMTC time period, DRS is used for subscriber equipment to carry out measuring based on the RRM of DRS in the time interval of specifying.The position of base station configuration DMTC time period specifically comprises: the position of first DMTC time period is determined to configure in base station, the duration of each DMTC time period is M subframe length, 1 subframe lengths is 1ms, namely the duration of DMTC time period is M millisecond, and the primary sign of DMTC time period can be any one symbol in subframe.Such as, the first symbol of the time span of DMTC to be the primary sign of above-mentioned 6ms, DMTC time period be certain subframe.Base station generates primary importance information after configuring the position of first DMTC time period, and primary importance information is for representing the positional information of DMTC time period.
It should be noted that, the subframe that DMTC takies differs, and to establish a capital be complete subframe, and also can comprise the subframe of part, namely the DMTC time period also can comprise the partial symbols in certain subframe, and the present invention is not restricted.
S102, base station configure the position of N number of DRS to be sent within the DMTC time period, generate second place information.
Concrete, base station side N number of DRS to be sent needs to be mapped in the M subframe of DMTC time period, and N number of DRS is mapped in subframe corresponding in the DMTC time period by base station respectively, and each DRS takies 12 symbols, and each DRS only corresponding subframe.Wherein, each DRS must be mapped in the complete subframe (14 symbols) that the DMTC time period comprises, each DRS takies 12 symbols in complete subframe, and the quantity N of DRS to be sent is less than or equal to the quantity of the complete subframe in the DMTC time period.After base station completes the map operation of N number of DRS, generate second place information, second place information is for representing that N number of DRS is arranged in the position of DMTC time period.
S103, described base station are the position that in N number of DRS to be sent, each DRS configures one group of initialize signal and/or preserved signal, generate the 3rd positional information.
Concrete, base station is that in N number of DRS, each DRS configures one group of initialize signal initialsignal and/or preserved signal reservationsignal, wherein, before the symbol that the DRS that the symbol that often group initialize signal and/or preserved signal take is positioned at correspondence takies, and often group initialize signal and/or preserved signal take 2 symbols at the most, namely often group initialize signal and/or preserved signal can take 2 symbols, 1 symbol or 0 symbol, it should be noted that, the symbol that often group initialize signal and/or preserved signal take is not limited to an integer symbol, only can take partial symbols.
S104, base station send to subscriber equipment and carry the measurement configuration messages of primary importance information, second place information and the 3rd positional information, measure configuration messages and are used to indicate the measurement that subscriber equipment carries out based on DRS.
Concrete, base station sends to subscriber equipment and carries primary importance information, the measurement configuration messages of second place information and the 3rd positional information, primary importance information is for representing the position of DMTC, subscriber equipment can be determined the position of DMTC according to primary importance information and determine the position of follow-up DMTC according to the appearance cycle of DMTC, subscriber equipment is according to the position of second place information determination base station side N number of DRS to be sent, to measure each DRS in the subframe position of correspondence, subscriber equipment determines the position of one group of initialize signal that each DRS is corresponding and/or preserved signal according to the 3rd positional information, initialize signal and/or preserved signal are used for carrying out down-going synchronous and channel reservation.After subscriber equipment completes the measurement to each DRS in DMTC, to base station report measurement results.
Implement embodiments of the invention, base station is by the position of the configuration position of DMTC time period, the position of DRS and initialize signal and/or preserved signal, generate and measure configuration messages, send to subscriber equipment and measure configuration messages, the DRS that equipment for indicating user is specified in the DMTC time period of specifying measures, make subscriber equipment obtain the character position needing the DRS measured accurately, increase the accuracy measured.
Optionally, in described N number of DRS to be sent, each DRS takies the 1st symbol in 1 subframe to the 12nd symbol; Or the 2nd symbol is to the 13rd symbol; Or the 3rd symbol is to the 14th symbol.
Concrete, in N number of DRS to be sent, each DRS takies 12 continuous print symbols in a subframe, and because each subframe comprises 14 symbols, the mode therefore taken is divided into three kinds: DRS to take the 1st symbol in subframe to the 12nd symbol, totally 12 symbols; DRS takies the 2nd symbol in subframe to the 13rd symbol, totally 12 symbols; DRS takies the 3rd symbol to the 14th symbol, totally 12 symbols.
Wherein, in N number of DRS, the position of the subframe of each DRS in DMTC is identical, and namely the position that take 12 symbols of DRS in subframe is identical.
Optionally, one group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal take last or two symbols of a upper subframe of the subframe at described first DRS place, and the primary sign of described DMTC time period overlaps with the primary sign of the subframe at described first DRS place; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of a described upper subframe; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of initialize signal in a described upper subframe and/or preserved signal.
Concrete, the position of base station configuration DMTC is divided into following three kinds:
One, N number of DRS sorts according to sending order by base station, base station configures the position of first DRS, determine the subframe that first DRS takies, for first DRS configures one group of initialize signal and/or preserved signal, this group initialize signal and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that first DRS takies, and the primary sign of DMTC time period overlaps with the primary sign of the subframe at first DRS place, namely the DMTC time period not exclusively covers this initial signal and/or preserved signal.Accordingly, base station in N number of DRS except the mapping method with reference to first DRS when other DRS of first DRS carry out mapping subframe position: the subframe that follow-up each DRS takies is from the first symbol of this subframe or the 2nd sign-on, and one group of initialize signal that each DRS is corresponding and/or preserved signal are positioned at last 1 or 2 symbols of a subframe.
Two, N number of DRS sorts according to sending order by base station, base station configures the position of first DRS, determine the subframe that first DRS takies, for first DRS configures one group of initialize signal and/or preserved signal, this group initialize signal and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that first DRS takies, and the primary sign of DMTC time period overlaps with the primary sign of a upper subframe, namely the DMTC time period covers one group of initialize signal corresponding to first DRS and/or preserved signal completely.Accordingly, base station is when configuring the position of removing first DRS in N number of DRS, and the initialize signal that follow-up each DRS is corresponding and/or preserved signal are positioned at one or two last symbol of a subframe.
Three, N number of DRS sorts according to sending order by base station, base station configures the position of first DRS, determine the subframe that first DRS takies, for first DRS configures one group of initialize signal and/or preserved signal, this group initialize signal and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that first DRS takies, and the primary sign of DMTC time period overlaps with the primary sign of the initialize signal in a upper subframe and/or preserved signal, namely the DMTC time period covers initialize signal corresponding to first DRS and/or preserved signal completely.Accordingly, base station is when configuring in N number of DRS except the position of first DRS, and the initialize signal that follow-up each DRS is corresponding and/or preserved signal are in last or two symbols of a upper subframe.
It should be noted that, one group of initialize signal that each DRS is corresponding and/or preserved signal are not limited to take an integer symbol, also can take partial symbols, even not take any symbol, namely not for DRS configures initialize signal and/or preserved signal.
Optionally, in 12 symbols that in described N number of DRS to be sent, each DRS takies, the 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned CRSport0; Or
1st symbol, the 5th symbol, the 8th symbol and the 12nd allocation of symbols have CRSport1; And/or
2nd symbol, the 9th allocation of symbols have CRSport2 and CRSport3; And/or
6th allocation of symbols has SSS, and the 7th allocation of symbols has PSS; And/or
10th symbol, the 11st allocation of symbols have ZPCSI-RS and or NZPCSI-RS.
Concrete, each DRS takies 12 continuous print symbols in subframe, and the sequencing according to the time is numbered 12 symbols that DRS takies: the 1st symbol is to the 12nd symbol, and the signal type of above-mentioned 12 symbols configuration is shown in Figure 2:
1st, 5,8,12 symbols have CRSport0 (CellspecificReferenceSignalport0 at least, cell special reference port 0, be called for short CRSport0) transmission, CRSport1 (CellspecificReferenceSignalport1 may be had, cell special reference port one, be called for short CRSport1) transmission, and if have CRSport1 to send, 4 symbols just have.
2nd, 9 symbols may send CRSport2 (CellspecificReferenceSignalport2, cell special reference port 2, be called for short CRSport2) and CRSport3 (CellspecificReferenceSignalport3, cell special reference port 3, be called for short CRSport3), or have the reference signal except CRSport2 and CRSport3 or synchronizing signal or new signal to fill.And if have CRSport2 and CRSport3 to send, these 2 symbols just have, and wherein, port0 represents that antenna port 0, port1 represents antenna port 1, port2 represents antenna port 2, port3 represents antenna port 3.
What 3rd, 4 symbols may have in CRSport0, CRSport0/1, CRSport2, CRSport2/3 is one or more, or NZPCSI-RS (NonZeroPowerChannelStateInformationReferenceSignal, non-zero power channel state information reference signals, be called for short NZPCSI-RS) one or more, SSS/PSS's is one or more, or new signal is filled;
The middle 6RB bandwidth of the 6th symbol sends SSS (SecondarySynchronizationSignal, auxiliary synchronous signals are called for short SSS);
The middle 6RB bandwidth of the 7th symbol sends PSS (PrimarySynchronizationSignal, master sync signal are called for short PSS);
10th, 11 are used for sending ZPCSI-RS (ZeroPowerChannelStateInformationReferenceSignal, zero energy channel state information reference signals, be called for short ZPCSI-RS) and or NZPCSI-RS (NonZeroPowerChannelStateInformationReferenceSignal, non-zero power channel state information reference signals, is called for short NZPCSI-RS).
Optionally, described method also comprises:
The symbol former configuration CCA time period that described base station is often being organized initialize signal and/or preserved signal and taken, the described CCA time period is for detecting channel status, and the original position of CCA time period and the distance of the original position of corresponding DRS are at most 2 symbols.
Concrete, base station is often organize the CCA time period of symbol former configuration that initialize signal and/or preserved signal take, the length of CCA time period has following restriction: CCA time period, initialize signal and/or preserved signal take two symbols at the most, namely the original position of CCA time period is at most 2 symbols with the distance of the original position of corresponding DRS, and the length of such as CCA time period is 25us.The CCA time period is used for base station and detects channel status, and base station detects that within the CCA time period unlicensed spectrum channel is idle condition, then can send the initialize signal configured and/or preserved signal below, and then sends corresponding DRS.If do not detect before the starting point of DRS starts that unlicensed spectrum channel is idle condition, then DRS can not be sent; If detect that unlicensed spectrum channel is idle condition in the time period of the CCA time period length just in time before the starting point of DRS, then need not send initialize signal and/or preserved signal, directly send DRS.
See Fig. 3, be the schematic flow sheet of a kind of DRS method of measurement based on unlicensed spectrum that the embodiment of the present invention provides, in embodiments of the present invention, described method comprises:
S301, subscriber equipment receive the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal.
Concrete, DRS is configured in the DMTC time period, each DRS is configured with one group of initialize signal and/or preserved signal, and the position of base station configuration DMTC time period is divided into two kinds of situations: the DMTC time period not exclusively covers initialize signal corresponding to first DRS and/or preserved signal; Or the DMTC time period covers initialize signal corresponding to first DRS and/or preserved signal completely.
S302, described subscriber equipment are determined the position of DMTC time period according to described primary importance information, are determined the position of DRS according to described second place information, and determine the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information.
S303, described subscriber equipment judge whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carry out down-going synchronous according to described PSS and SSS.
Concrete, when the DMTC time period covers initialize signal corresponding to first DRS and/or preserved signal completely: after subscriber equipment receives and measures configuration messages, resolve in initialize signal and/or preserved signal and whether there is PSS and SSS, if exist, subscriber equipment carries out descending basic synchronization according to the time configuration information in initialize signal and/or preserved signal; If do not exist, subscriber equipment can only obtain down-going synchronous by PSS and SSS in blind check in DRS, after down-going synchronous completes, the position of 12 symbols that subscriber equipment finds the primary sign of DRS and DRS to take according to second place information, then measures DRS according to the collocation method measured in configuration messages.
When the DMTC time period not exclusively covers initialize signal corresponding to first DRS and/or preserved signal: after subscriber equipment receives and measures configuration messages, the position of DMTC time period is determined according to primary importance information, obtain the primary sign of DMTC time period, from the primary sign of DMTC time period, subscriber equipment carries out blind check to each symbol in the DMTC time period, detect the character position of PSS and SSS in DRS, thus obtain descending basic synchronization, after down-going synchronous completes, the position of 12 symbols that subscriber equipment finds the primary sign of DRS and DRS to take according to second place information, then according to the collocation method measured in configuration messages, DRS is measured.Because in this case, the original position of DMTC time period is not the original position of initialize signal and/or preserved signal or the original position of DRS, so need each symbol to carry out blind check.
S304, described subscriber equipment carry out the measurement based on DRS according to the position of described DRS.
Concrete, subscriber equipment determines the character position in the DMTC time period according to the position of DRS, and measure according to the DRS being mapped to designated symbols in the DMTC time period, method of measurement the present invention be not restricted.
Implement embodiments of the invention, base station is by the position of the configuration position of DMTC time period, the position of DRS and initialize signal and/or preserved signal, generate and measure configuration messages, user receives measurement configuration messages, measure according to the DRS that the instruction of measuring configuration messages is specified in the DMTC time period of specifying, make subscriber equipment obtain the character position needing the DRS measured accurately, increase the accuracy measured.
Optionally, described method also comprises:
If described initialize signal and or preserved signal in there is not PSS and SSS, described subscriber equipment carries out PSS and SSS in DRS described in blind check to obtain down-going synchronous.
See Fig. 4, be the structural representation of a kind of base station that the embodiment of the present invention provides, in embodiments of the present invention, base station 4 comprises the first configuration module 401, second configuration module 402, the 3rd configuration module 403 and sending module 404.
First configuration module 401, for configuring the position finding the reference signal Measuring Time DMTC time period, generates primary importance information; Wherein, the duration of described DMTC time period is M subframe length, the primary sign of described DMTC time period be in subframe the 1st symbol to any one in the 14th symbol.
Second configuration module 402, for configuring the position of N number of discovery reference signal DRS to be sent within the described DMTC time period, generates second place information; Wherein, each DRS takies 12 symbols, and each DRS only corresponding subframe, N<M, and N and M is positive integer.
3rd configuration module 403, for configuring the position of one group of initialize signal and/or preserved signal for each DRS in described N number of DRS to be sent, generates the 3rd positional information; Wherein, often group initialize signal and/or preserved signal take 2 symbols at the most.
Sending module, carries the measurement configuration messages of described primary importance information, described second place information and described 3rd positional information for sending to subscriber equipment, and described measurement configuration messages is used to indicate the measurement that described subscriber equipment carries out based on DRS.
Optionally, in described N number of DRS to be sent, each DRS takies the 1st symbol in 1 subframe to the 12nd symbol; Or the 2nd symbol is to the 13rd symbol; Or the 3rd symbol is to the 14th symbol.
Optionally, one group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal take in last or two symbols of a upper subframe of the subframe at described first DRS place, and the primary sign of described DMTC time period overlaps with the primary sign of the subframe at described first DRS place; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of a described upper subframe; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of initialize signal in a described upper subframe and/or preserved signal.
Optionally, in 12 symbols that in described N number of DRS to be sent, each DRS takies, the 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned CRSport0; Or
1st symbol, the 5th symbol, the 8th symbol and the 12nd allocation of symbols have CRSport1; And/or
2nd symbol, the 9th allocation of symbols have CRSport2 and CRSport3; And/or
6th allocation of symbols has SSS, and the 7th allocation of symbols has PSS; And/or
10th symbol, the 11st allocation of symbols have ZPCSI-RS and/or NZPCSI-RS.
Optionally, base station 4 also comprises:
4th configuration module, for the symbol former configuration CCA time period often organized initialize signal and/or preserved signal and take, the described CCA time period is for detecting channel status, and the original position of CCA time period and the distance of the original position of corresponding DRS are at most 2 symbols.
The embodiment of the embodiment of the present invention and Fig. 1 is based on same design, and its technique effect brought is also identical, and detailed process please refer to the explanation of the embodiment of Fig. 1, repeats no more herein.
See Fig. 5, be the structural representation of a kind of subscriber equipment that the embodiment of the present invention provides, in embodiments of the present invention, subscriber equipment 5 comprises: receiver module 501, determination module 502, synchronization module 503 and measurement module 504.
Receiver module 501, for receiving the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal.
Determination module 502, for determining the position of DMTC time period according to described primary importance information, determining the position of DRS according to described second place information, and determines the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information.
Synchronization module 503, for judging whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carries out down-going synchronous according to described PSS and SSS.
Measurement module, for the measurement that subscriber equipment carries out based on DRS according to the position of described DRS.
Optionally, subscriber equipment 5 also comprises:
Blind check module, if for described initialize signal and or preserved signal in there is not PSS and SSS, carry out PSS and SSS in DRS described in blind check to obtain down-going synchronous.
The embodiment of the embodiment of the present invention and Fig. 3 is based on same design, and its technique effect brought is also identical, and detailed process can refer to the explanation of the embodiment of Fig. 3, repeats no more herein.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Above disclosedly be only a kind of preferred embodiment of the present invention, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are done, still belong to the scope that invention is contained.
Claims (14)
1., based on a DRS collocation method for unlicensed spectrum, it is characterized in that, comprising:
Base station configuration finds the position of reference signal Measuring Time configuration DMTC time period, generates primary importance information; Wherein, the duration of described DMTC time period is M subframe length, the primary sign of described DMTC time period be in subframe the 1st symbol to any one in the 14th symbol;
Described base station configures the position of N number of discovery reference signal DRS to be sent within the described DMTC time period, generates second place information; Wherein, each DRS takies 12 symbols, and each DRS only corresponding subframe, N<M, and N and M is positive integer;
Described base station is the position that in described N number of DRS to be sent, each DRS configures one group of initialize signal and/or preserved signal, generates the 3rd positional information; Wherein, often group initialize signal and/or preserved signal take 2 symbols at the most;
Described base station sends to subscriber equipment and carries the measurement configuration messages of described primary importance information, described second place information and described 3rd positional information, and described measurement configuration messages is used to indicate the measurement that described subscriber equipment carries out based on DRS.
2. the method for claim 1, is characterized in that, in described N number of DRS to be sent, each DRS takies the 1st symbol in 1 subframe 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 for claim 1, it is characterized in that, one group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal take in last or two symbols of a upper subframe of the subframe at described first DRS place, and the primary sign of described DMTC time period overlaps with the primary sign of the subframe at described first DRS place; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of a described upper subframe; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of initialize signal in a described upper subframe and/or preserved signal.
4. method as claimed in claim 2, it is characterized in that, in 12 symbols that in described N number of DRS to be sent, each DRS takies, the 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned cell special reference port 0CRSport0; And/or
1st symbol, the 5th symbol, the 8th symbol and the 12nd allocation of symbols have cell special reference port one CRSport1; And/or
2nd symbol, the 9th allocation of symbols have cell special reference port 2CRSport2 and port 3CRSport3; And/or
6th allocation of symbols has auxiliary synchronous signals SSS, and the 7th allocation of symbols has master sync signal PSS; And/or
10th symbol, the 11st allocation of symbols have zero energy channel state information reference signals ZPCSI-RS and/or non-zero power channel status reference signal NZPCSI-RS.
5. the method for claim 1, is characterized in that, also comprises:
The CCA time period is detected often organizing the symbol former configuration idle channel that initialize signal and/or preserved signal take in described base station, the described CCA time period is for detecting channel status, and the original position of CCA time period and the distance of the original position of corresponding DRS are at most 2 symbols.
6., based on a DRS method of measurement for unlicensed spectrum, it is characterized in that, comprising:
Subscriber equipment receives the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal;
Described subscriber equipment is determined the position of DMTC time period according to described primary importance information, is determined the position of DRS according to described second place information, and determines the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information;
Described subscriber equipment judges whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carries out down-going synchronous according to described PSS and SSS;
Described subscriber equipment carries out the measurement based on DRS according to the position of described DRS.
7. method as claimed in claim 6, is characterized in that, also comprise:
If described initialize signal and or preserved signal in there is not PSS and SSS, described subscriber equipment carries out PSS and SSS in DRS described in blind check to obtain down-going synchronous.
8. a base station, is characterized in that, comprising:
First configuration module, for configuring the position finding the reference signal Measuring Time configuration DMTC time period, generates primary importance information; Wherein, the duration of described DMTC time period is M subframe length, the primary sign of described DMTC time period be in subframe the 1st symbol to any one in the 14th symbol;
Second configuration module, for configuring the position of N number of discovery reference signal DRS to be sent within the described DMTC time period, generates second place information; Wherein, each DRS takies 12 symbols, and each DRS only corresponding subframe, N<M, and N and M is positive integer;
3rd configuration module, for configuring the position of one group of initialize signal and/or preserved signal for each DRS in described N number of DRS to be sent, generates the 3rd positional information; Wherein, often group initialize signal and/or preserved signal take 2 symbols at the most;
Sending module, carries the measurement configuration messages of described primary importance information, described second place information and described 3rd positional information for sending to subscriber equipment, and described measurement configuration messages is used to indicate the measurement that described subscriber equipment carries out based on DRS.
9. base station as claimed in claim 8, is characterized in that, in described N number of DRS to be sent, each DRS takies the 1st symbol in 1 subframe to the 12nd symbol; Or the 2nd symbol is to the 13rd symbol; Or the 3rd symbol is to the 14th symbol.
10. base station as claimed in claim 8, it is characterized in that, one group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal take in last or two symbols of a upper subframe of the subframe at described first DRS place, and the primary sign of described DMTC time period overlaps with the primary sign of the subframe at described first DRS place; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of a described upper subframe; Or
One group of initialize signal that in described N number of DRS, first DRS is corresponding and/or preserved signal are positioned at last or two symbols of a upper subframe of the subframe that described first DRS takies, and the primary sign of described DMTC time period overlaps with the primary sign of initialize signal in a described upper subframe and/or preserved signal.
11. base stations as claimed in claim 9, it is characterized in that, in 12 symbols that in described N number of DRS to be sent, each DRS takies, the 1st symbol, the 5th symbol, the 8th symbol and the 12nd symbol are at least assigned cell special reference port 0CRSport0; And/or
1st symbol, the 5th symbol, the 8th symbol and the 12nd allocation of symbols have cell special reference port one CRSport1; And/or
2nd symbol, the 9th allocation of symbols have cell special reference port 2CRSport2 and port 3CRSport3; And/or
6th allocation of symbols has auxiliary synchronous signals SSS, and the 7th allocation of symbols has master sync signal PSS; And/or
10th symbol, the 11st allocation of symbols have zero energy channel state information reference signals ZPCSI-RS and/or non-zero power channel status reference signal NZPCSI-RS.
12. base stations as claimed in claim 9, is characterized in that, also comprise:
4th configuration module, for detecting the CCA time period often organizing the symbol former configuration idle channel that initialize signal and/or preserved signal take, the described CCA time period is for detecting channel status, and the original position of CCA time period and the distance of the original position of corresponding DRS are at most 2 symbols.
13. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Receiver module, for receiving the measurement configuration messages of primary importance information of carrying, second place information and the 3rd positional information that base station sends; Wherein, described primary importance information represents the position of DMTC time period, and described second place information represents the position of the DRS configured in the described DMTC time period, and described 3rd positional information represents the position of one group of initialize signal that DRS is corresponding and/or preserved signal;
Determination module, for determining the position of DMTC time period according to described primary importance information, determining the position of DRS according to described second place information, and determines the position of one group of initialize signal that DRS is corresponding and/or preserved signal according to the 3rd positional information;
Synchronization module, for judging whether there is PSS and SSS in described initialize signal and/or preserved signal, if exist, carries out down-going synchronous according to described PSS and SSS;
Measurement module, for the measurement that subscriber equipment carries out based on DRS according to the position of described DRS.
14. subscriber equipmenies as claimed in claim 13, is characterized in that, also comprise:
Blind check module, if for described initialize signal and or preserved signal in there is not PSS and SSS, carry out PSS and SSS in DRS described in blind check to obtain down-going synchronous.
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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 |
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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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Also Published As
| Publication number | Publication date |
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| CN105451251B (en) | 2019-01-11 |
| WO2017075922A1 (en) | 2017-05-11 |
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