CN104968052A

CN104968052A - Configuring method, configuring system, apparatus, receiving method, receiving system, and terminal

Info

Publication number: CN104968052A
Application number: CN201510251247.5A
Authority: CN
Inventors: 李明菊; 朱亚军; 张云飞
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2015-05-15
Filing date: 2015-05-15
Publication date: 2015-10-07
Anticipated expiration: 2035-05-15
Also published as: CN104968052B; WO2016183941A1

Abstract

The invention provides a reference signal configuring method and system, an apparatus with a base station function, a reference signal receiving method, a reference signal receiving system, and a terminal. The reference signal configuring method comprises: setting at least one discovery reference signal (DRS) in DMTC (DRS measurement timing configuration); configuring a sending parameter for the at least one DRS; and sending the sending parameter to a terminal served by the apparatus with a base station function in order that the terminal receives the at least one DRS according to the sending parameter. The reference signal configuring method may reduce DRS detection complexity for UE while increasing DRS sending probability in order to enable the terminal to accurately receive the DRS and achieve frame synchronization and subframe synchronization.

Description

Collocation method, configuration-system, equipment, method of reseptance, receiving system and terminal

Technical field

The present invention relates to communication technical field, in particular to a kind of collocation method of reference signal, a kind of reference signal configuration-system, a kind of there is the equipment of base station functions, a kind of method of reseptance of reference signal, a kind of receiving system of reference signal and a kind of terminal.

Background technology

Along with the sharply increase of message volume, the mandate frequency spectrum of 3GPP is more and more not enough to provide higher network capacity.In order to improve the utilance 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 these unlicensed spectrums current mainly Wi-Fi, bluetooth, radar, medical treatment are in use.

Under normal circumstances, the access technology designed for authorizing frequency range, as LTE (Long TermEvolution, Long Term Evolution) is 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 (CarrierAggregation, CA) function allows and LTE is deployed in unauthorized frequency range becomes possibility.3GPP proposes the concept of LAA (the auxiliary access of LTE Assisted Access, LTE), 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 (SDL, Supplemental Downlink), namely only has downlink transfer subframe; Another kind is tdd mode, has both comprised descending sub frame, sub-frame of uplink.Supplementing descending this situation can only be use (as shown in Figure 1) by carrier aggregation technology.And tdd mode is except can using by carrier aggregation technology, can also uses by DC (Dual Connectivity, doubly-linked leads to), also can independently use.

Compared to Wi-Fi system, the LTE system being operated in unauthorized frequency range has the ability to provide higher spectrum efficiency and larger coverage effect, allows data traffic authorize seamless switching between frequency range and unauthorized frequency range based on same core net simultaneously.Concerning user, this means better broadband experience, higher speed, better stability and mobile facility.

The existing access technology used in unlicensed spectrum, as Wi-Fi, has more weak antijamming capability.In order to avoid interference, rule is avoided in a lot of interference of Wi-Fi system, as CSMA/CD (Carrier Sense Multiple Access/Collision Detection, csma/collision detection method), the general principle of this method is the AP (AccessPoint of Wi-Fi, access point) or terminal transmission signaling or data before, want whether have other AP or other-end around first Monitor detection in sending/receiving signaling or data, if have, then continue to monitor, do not have until listen to; If no, then generate a random number N as back off time, in ensuing Channel Detection, if channel busy detected, then N is constant, until detect that channel is again idle, and ability N-1; When N is kept to 0, back off time terminates, and AP or terminal can start to send signaling or data.This process as shown in Figure 2.

But, owing to there being good orthogonality to ensure that interference level in LTE network, so the downstream transmission of base station and user need not consider whether have other base stations or other users transmitting data around.If whether have other equipment around also not considering when LTE uses in unauthorized frequency range in the unauthorized frequency range of use, so great interference will be brought to Wi-Fi equipment.As long as because LTE has business just to transmit, without any monitoring rule, so Wi-Fi equipment just can not be transmitted when LTE has business to transmit, can only wait until that LTE business is transmitted, just can detect that channel clear is to carry out transfer of data.

So LTE is when using unauthorized frequency range, one of topmost key point guarantees that LAA (access technology that LTE assisted access, LTE are auxiliary) can coexist with existing access technology (such as WiFi) on fair friendly basis.And in traditional LTE system, do not have the mechanism of LBT (Listen Before Talk, listem-before-talk) to carry out collision free.In order to better coexist with WiFi, LTE needs a kind of LBT mechanism.Like this, if LTE detects channel busy in unlicensed spectrum, then can not take this frequency range, if detect that channel is not busy, just can take.

Based on the problems referred to above, at present, propose a kind of (FBE based on frame structure, Framedbased equipment) LBT mechanism (as shown in Figure 3), left oblique line is CCA (ClearChannel Assessment, clear channel assessment (CCA)) Channel Detection Time, CCA periodicity detection time repeats, if channel idle detected, then busy channel, after Channel holding time reaches maximum channel holding time, there is an idle time, in the idle time, sending point does not send signal and data, so that channel is seized in other sending point.After the idle time, occur again CCA detection time, if channel busy detected, then not busy channel, until again detect channel when the CCA in next cycle occurs detection time.Certainly, Channel Detection Time also belongs to the idle time, and idle duration must be greater than 5% of the maximum holding time of channel.The CCA time adds that the Idle time adds channel occupancy maximum time and cycle.

At present, the LBT mechanism that also proposed a kind of (LBE, Load based equipment) based on load is illustrated in fig. 4 shown below: the LBT mechanism based on LBE is aperiodic, as long as business arrives, then trigger CCA to detect, if CCA detects idle, then send signaling or data at once; If channel busy detected, then get a random number N, the span of N is 1 to q (i.e. competition window length), and the span of q is 4 to 32.Fig. 4 shows the situation of q=16, and now, when channel idle being detected, the maximum holding time of channel is (13/32) x q=6.5ms.After 6.5ms, taking extended CCA (Channel Detection Time of prolongation) mechanism, is namely also random value N, the scope of N is 1 to 16, if value is 8, then represent that each CCA will detect channel detection time in ensuing continuous print CCA detection time, if channel idle detected, then N-1, if channel busy detected, then N is constant, when N is 0, send signaling or data.

In addition, in LAA for RRM (Radio Resource Management, RRM) reference signal of measurement, cell identification, down-going synchronous, time-frequency estimation etc. has two kinds of modes to realize: one is short control signaling (in short-term control signal), the requirement of this mode demand fulfillment to have the time of 5% sending control signal in short-term, namely 2.5ms in 50ms.Another kind sends aperiodic DRS (Discovery Reference Signal, find reference signal), because send the time that DRS need take 6ms, if and also send when channel busy being detected, larger interference is brought by giving other system, so if send DRS, just can only send when channel idle being detected, so DRS is exactly aperiodic.

When DRS when detecting that channel idle could send, must have multiple method at present:

First method: DRS must send as R12 in the subframe (subframe) of DMTC (DRS MeasurementTiming Configuration, DRS Measuring Time configures) internal fixtion.PSS/SSS in such as DRS must ensure in the upper transmission of the symbol (symbol) that original subframe is original.For FDD (Frequency Division Duplexing, Frequency Division Duplexing (FDD)), PSS sends last symbol (being namely numbered the 7th symbol of 6) of first slot (time slot) of 0# subframe and 5# subframe is upper as shown in Figure 5; SSS (SecondarySynchronization Signal, auxiliary synchronous signals) and PSS (Primary Synchronizationsignal, master sync signal) send at the same slot of same subframe, but SSS is arranged in penultimate symbol, carry previous symbol (being namely numbered the 6th symbol of 5) than PSS.For TDD (Time Division Duplexing, time division duplex), as shown in Figure 6, PSS sends in the 3rd symbol of the numbering 2 of 1# subframe and 6# subframe (i.e. DwPTS); And SSS sends in last symbol (i.e. the 14 symbol of numbering 13) of subframe 0# subframe and 5# subframe, shift to an earlier date 3 symbol than PSS.This approach reduces UE detection complexity, simultaneously when carrying out RRM and measuring, can sign synchronization be realized, synchronizing sub-frame, frame synchronization.But this shortcoming is that the send opportunity of DRS is few, if channel idle do not detected in only send opportunity within a DMTC cycle (minimum is 40ms), then cannot send.Need to wait until the send opportunity in the next DMTC cycle, wherein, terminal is identical according to two PSS in the 10ms cycle (i.e. a frame structure), two SSS differences, can judge that base station sends DRS at subframe#0 or subframe#5.

Second method: during DMTC, DRS can send in unfixed subframe, when detects when channel idle then sends, and the advantage of this method is that send opportunity is many.Shortcoming is that UE detection complexity increases, and the transmission symbol taken due to PSS/SSS, the positions such as subframe are uncertain, make terminal cannot realize subframe synchronous, the functions such as frame synchronization.

The third method: send DRS in the outside in DMTC cycle, as long as that is channel idle detected, just can send DRS.And the advantage of this method further increases send opportunity compared to second method, shortcoming is higher than the first UE detection complexity, the DCI signaling of eNB (base station) (Downlink Control Information, Downlink Control Information) even may be needed to go to indicate further the transmitting time of DRS.

Therefore, how while increase DRS sends probability, can reduce the complexity that UE detects DRS, to make terminal receive DRS exactly, thus achieve frame is synchronous and subframe synchronous, becomes problem demanding prompt solution as far as possible.

Summary of the invention

The present invention, just based on the problems referred to above, proposes a kind of new technical scheme, sends while probability at increase DRS, can reduce the complexity that UE detects DRS as far as possible, and to make terminal receive DRS exactly, thus achieve frame is synchronous and subframe synchronous.

In view of this, an aspect of of the present present invention proposes a kind of collocation method of reference signal, for having the equipment of base station functions, comprising: in DMTC, arrange at least one find reference signal; For at least one discovery reference signal configuration described sends parameter; Described transmission parameter is sent to by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

In this technical scheme, by arranging one or more discovery reference signal in DMTC, and be at least one discovery reference signal configuration transmission parameter, then the transmission parameter configured is sent to terminal, terminal can be made according to the transmission parameter of Equipments Setting with base station functions, specify the cycle of DMTC, total transmitting time of the discovery reference signal in a DMTC, number, the number of the symbol in each discovery reference signal, the various information such as position, thus while increasing the probability sending and find reference signal, the complexity that terminal detects DRS can be reduced, DRS is received exactly to make terminal, thus achieve frame is synchronous and subframe synchronous, wherein, have in a DMTC multiple frame structure (as the DMTC cycle be 40ms time, just there are 4 frame structures), and the plurality of transmission reference signal and DRS can in the different subframes of same frame structure, also can in the different subframes of different frame structure, in addition, the equipment with base station functions comprises base station, by the microcell base station etc. that communication equipment (as smart mobile phone etc.) realizes.

In technique scheme, preferably, described transmission parameter comprises: the number of at least one discovery reference signal described, wherein, the number of at least one discovery reference signal described is: 1 to 5, and the described process being at least one discovery reference signal configuration described and sending parameter, specifically comprise: for the described DMTC at least one discovery reference signal place described configures transmission cycle and/or other time offset of sub-frame level, and/or be the total transmitting time of at least one discovery reference signal configuration described, and/or for described at least one find the symbolic number that each described discovery reference signal configuration in reference signal can take and/or other time offset of symbol level, and/or be described at least one find the channel state information reference signals of each described at least one cell special reference of discovery reference signal configuration in reference signal and/or non-zero power.

In this technical scheme, by issuing transmission cycle and/or other time offset of sub-frame level of DMTC to terminal, terminal can be made first to determine, and which subframe DMTC occupies, accurately to receive DMTC, this is the transmission parameter accurately receiving DRS further, for realizing synchronously laying the foundation; In addition, by issuing total transmitting time to terminal, terminal can be made to determine number and the position of the subframe that at least one DRS takies; By issuing at least one DRS number to terminal, symbolic number that each DRS takies and/or other time offset of symbol level can make the position of the symbol of terminal accurately determines total reception number of times of DRS, each DRS takies target-subframe and/or preposition subframe, and then realize synchronizing sub-frame; And pass through the channel state information reference signals of RRC transmitting signaling downwards non-zero power, terminal can be made according to channel state information reference signals (CSI-RS, Rererence Signal) position of subcarrier that takies or scrambler accurately determine the true numbering of the subframe that DRS takies, thus achieve frame is synchronous.

In technique scheme, preferably, after at least one cell special reference described in each described discovery reference signal configuration and/or described channel state information reference signals, control each described discovery reference signal to take continuously and described can take symbol, and the described number of symbols taking symbol is N, wherein, N is more than or equal to 3, and is less than or equal to 14.

In this technical scheme, at least one CRS (Cell-specificRererence Signal is being configured for each DRS, cell special reference) and CSI-RS, 3-14 symbol is taken continuously by control DRS, DRS can be prevented because do not take multiple symbols of frame structure continuously, and down channel is taken by miscellaneous equipment, thus affect transmission and the reception of DRS.

In technique scheme, preferably, each described discovery reference signal includes: a master sync signal and an auxiliary synchronous signals, and when the symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described, if the frame structure at each described discovery reference signal place is FDD frame structure, the described master sync signal controlled in each described discovery reference signal takies the 7th symbol in the target-subframe of described FDD frame structure, and control described auxiliary synchronous signals and take the 6th symbol in described target-subframe, if the frame structure at each described discovery reference signal place is tdd frame structure, the described master sync signal controlled in each described discovery reference signal takies the 3rd symbol in the target-subframe of described tdd frame structure, and control described auxiliary synchronous signals and take the 14 symbol in the preposition subframe adjacent with described target-subframe, wherein, described target-subframe is the arbitrary subframe in described FDD frame structure or described tdd frame structure.

In this technical scheme, when the frame structure at each discovery reference signal place is FDD frame structure, by controlling the symbol that namely master sync signal in each discovery reference signal and PSS the 7th symbol taken in the target-subframe of FDD frame structure be numbered 6, and control the symbol that namely auxiliary synchronous signals and SSS the 6th symbol taken in target-subframe be numbered 5, and be tdd frame structure at the frame structure at each discovery reference signal place, namely the 3rd symbol taken in the target-subframe of tdd frame structure by the master sync signal controlled in each discovery reference signal be numbered the symbol of 2, and control the symbol that namely auxiliary synchronous signals and SSS the 14 symbol taken in the preposition subframe adjacent with target-subframe be numbered 13, the symbol that PSS/SSS in DRS in the present invention and PSS/SSS of the prior art is taken is constant, thus make UE realize synchronizing sub-frame, and reduce the complexity that terminal detects DRS to a certain extent, certainly, target-subframe can be the arbitrary subframe in FDD frame structure or tdd frame structure, and being numbered first subframe of 0 or being numbered the 6th subframe of 5 not necessarily in FDD frame structure, being numbered second subframe of 1 or being numbered the 7th subframe of 6 also not necessarily in tdd frame structure, and M subframe is the subframe being numbered M-1.

In technique scheme, preferably, after for channel state information reference signals described in each described discovery reference signal configuration, sub-carrier positions and the first subframe numbering reference table of subframe numbering corresponding relation and/or first operator's reference table of sub-carrier positions and operator's corresponding relation is sent to described terminal by RRC signaling, the position of the subcarrier taken according to the described channel state information reference signals received to make described terminal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described first subframe numbering reference table, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) first operator's reference table of corresponding stored the first subframe numbering reference table of corresponding relation of having sub-carrier positions and subframe to number and/or the corresponding relation of sub-carrier positions and operator is sent to terminal, terminal can be made according to channel state information reference signals and the actual position of the subcarrier taken of CSI-RS and the type of SSS, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the first subframe numbering reference table, thus make the synchronous of terminal achieve frame, and/or from first operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to make terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, after for channel state information reference signals described in each described discovery reference signal configuration, the described channel state information reference signals carrying scrambler is sent to described terminal, and second operator's reference table of the second subframe reference table of scrambler and subframe numbering corresponding relation and/or scrambler and operator's corresponding relation, to make described terminal according to the type of the difference of described scrambler with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described second subframe numbering reference table, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) there are the second subframe numbering reference table of scrambler and subframe numbering corresponding relation and/or second operator's reference table of scrambler and operator to terminal transmission corresponding stored, terminal can be made according to the type of the scrambler of channel state information reference signals with the auxiliary synchronous signals received, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the second subframe numbering reference table, thus make the synchronous of terminal achieve frame, and/or from second operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to make terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, after for channel state information reference signals described in each described discovery reference signal configuration, if send arbitrary discovery reference signal to described terminal, then send to described terminal and find the attribute information of reference signal and the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or find the attribute information of reference signal and the 3rd operator's reference table of subframe numbering corresponding relation, to make described terminal according to the type of the described attribute information of described arbitrary discovery reference signal with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) there are the attribute information of arbitrary discovery reference signal and the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe to terminal transmission corresponding stored, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) with the 3rd operator's reference table of the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or the attribute information of arbitrary discovery reference signal and operator's corresponding relation, terminal can be made according to the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) and the type of auxiliary synchronous signals that receives, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the 3rd subframe numbering reference table, thus make the synchronous of terminal achieve frame, and/or from the 3rd operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to make terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, the process of the described channel state information reference signals at least one cell special reference described at least one each described discovery reference signal configuration finding in reference signal described and/or non-zero power, specifically comprise: according to the type of the described auxiliary synchronous signals in the type of described frame structure and/or each described discovery reference signal, for at least one cell special reference and/or described channel state information reference signals described in each described discovery reference signal configuration, wherein, the type of described frame structure comprises: FDD frame structure and tdd frame structure.

In this technical scheme, by the type according to the auxiliary synchronous signals in the type of frame structure i.e. (FDD frame structure and tdd frame structure) and/or each discovery reference signal, for each at least one cell special reference of discovery reference signal configuration and/or channel state information reference signals, DRS can be made to take several symbols in frame structure continuously, thus prevent DRS because do not take multiple symbols of frame structure continuously, and down channel is taken by miscellaneous equipment, thus affect transmission and the reception of DRS.

In technique scheme, preferably, when the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in first to the 5th subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in first to the 5th subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is the first kind; When the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in the 6th to the tenth subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in the 6th to the tenth subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is Second Type.

In this technical scheme, arbitrary subframe in first to the 5th subframe in TDD or FDD frame structure by what take according to auxiliary synchronous signals and SSS, or arbitrary subframe in the 6th to the tenth subframe and SSS is divided into the first kind and Second Type, be convenient to terminal after determining the position of the subcarrier that CSI-RS takies, in conjunction with the type of SSS, the numbering of accurate lock onto target subframe or preposition subframe from the first subframe numbering reference table, or from first operator's reference table, accurately send the operator finding reference signal, be convenient to the type of base station according to the SSS in the type of frame structure and/or each DRS simultaneously, for each DRS configures at least one CSR and/or CSI-RS, several symbols in frame structure can be taken continuously to make DRS.

In technique scheme, preferably, before each described discovery reference signal of transmission, whether idlely detect subframe detection down channel by the down channel arranged in DMTC; When detecting that described down channel is idle, sending and detecting the nearest rearmounted discovery reference signal of character position that subframe takies with described down channel, and stopping sending other discovery reference signals in the described DMTC cycle; Otherwise, do not send described rearmounted discovery reference signal; And after the described down channel free time being detected, before the described rearmounted discovery reference signal of transmission, transmitting channel Seize ACK message, and the symbolic number that described signal Seize ACK message takies is less than M, wherein, M is positive integer.

In this technical scheme, subframe (i.e. CCA is detected at down channel, Clear ChannelAssessment) when detecting that downstream signal is idle, by the rearmounted DRS that the character position taken to terminal transmission and CCA is nearest, terminal can be made DRS to be detected exactly, thus achieve frame is synchronous and synchronizing sub-frame, if and sent a DRS within a DMTC cycle after, just can stop sending other DRS, too much make DRS take down channel too for a long time to prevent sending DRS, and then affect the normal transmission of other downstream signals or the descending transmission of miscellaneous equipment; And after the down channel free time being detected, if also do not arrive the transmission position of rearmounted discovery reference signal, then transmitting channel Seize ACK message (as preserved signal) or initial signal (initialize signal) or CRS or CSI-RS, but the temporal summation sending these signals obtains restricted, such as be less than M symbol, so both can strive to obtain send opportunity for rearmounted transmission reference signal, the overlong time of these channel reservations can be avoided again, and miscellaneous equipment cannot be robbed account for channel.

In technique scheme, preferably, when sending each described discovery reference signal, the down control channel in use authority frequency spectrum or unlicensed spectrum sends to described terminal and is used to indicate the Downlink Control Information whether sending each described discovery reference signal.

In this technical scheme, owing to there being the sent position of how many DRS in base station notification terminal DMTC, terminal will blind check how many times, but in fact, when base station detects that down channel is busy, DRS would not be sent, which increase the detection of complex of terminal, therefore, by sending Downlink Control Information and DCI to terminal, whether really can send DRS in indicating terminal base station, This further reduces the complexity that terminal detects DRS.

In technique scheme, preferably, for described in each described discovery reference signal configuration during channel state information reference signals, if described channel state information reference signals and the equipment that other have base station functions are the channel state information reference signals of each described discovery reference signal configuration take the target-subframe of identical true numbering or preposition subframe, then controlling described the channel state information reference signals subcarrier taken and the equipment that other have base station functions is that the position of the subcarrier that the channel state information reference signals of each described discovery reference signal configuration takies is different.

In this technical scheme, when configuring CSI-RS for each DRS, the subframe that namely target-subframe of identical true numbering or preposition subframe take same numbering is taken if the equipment with base station functions of current area and other equipment with base station functions of other communities are CSI-RS that every DRS configures, the subcarrier that the CSI-RS with the Equipments Setting of base station functions that then should control current area takies and the equipment that other have base station functions are that the position of the subcarrier that CSI-RS that each DRS configures takies is different, thus when preventing the terminal with the equipment of base station functions of current area from measuring CSI-RS, be subject to the impact of other communities.

In technique scheme, preferably, described described transmission parameter to be sent to by the described terminal with the device service of base station functions, specifically to comprise: by RRC signaling, described transmission parameter is sent to by the described terminal with the device service of base station functions; And described collocation method is applicable to the reference signal in LTE system.

In this technical scheme, by RRC signaling, transmission parameter is sent to terminal, can sends while probability, reduce the complexity that UE detects DRS as far as possible at increase DRS, to make terminal receive DRS exactly, thus achieve frame is synchronous and subframe synchronous.

Another aspect of the present invention proposes a kind of configuration-system of reference signal, comprising: setting unit, arranges at least one and find reference signal in DMTC; Dispensing unit, at least one discovery reference signal configuration described sends parameter; Transmitting element, is sent to described transmission parameter by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

In technique scheme, preferably, described transmission parameter comprises: the number of at least one discovery reference signal described, wherein, the number of at least one discovery reference signal described is: 1 to 5, and described dispensing unit specifically for: be described at least one find that the described DMTC at reference signal place configures transmission cycle and/or other time offset of sub-frame level, and/or be the total transmitting time of at least one discovery reference signal configuration described, and/or for described at least one find the symbolic number that each described discovery reference signal configuration in reference signal can take and/or other time offset of symbol level, and/or be described at least one find the channel state information reference signals of each described at least one cell special reference of discovery reference signal configuration in reference signal and/or non-zero power.

In technique scheme, preferably, also comprise: the first control unit, after at least one cell special reference described in each described discovery reference signal configuration and/or described channel state information reference signals, control each described discovery reference signal to take continuously and described can take symbol, and the described number of symbols taking symbol is N, wherein, N is more than or equal to 3, and is less than or equal to 14.

In technique scheme, preferably, each described discovery reference signal includes: a master sync signal and an auxiliary synchronous signals, and described configuration-system also comprises: the second control unit, when the symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described, if the frame structure at each described discovery reference signal place is FDD frame structure, the described master sync signal controlled in each described discovery reference signal takies the 7th symbol in the target-subframe of described FDD frame structure, and control described auxiliary synchronous signals and take the 6th symbol in described target-subframe, if the frame structure at each described discovery reference signal place is tdd frame structure, the described master sync signal controlled in each described discovery reference signal takies the 3rd symbol in the target-subframe of described tdd frame structure, and control described auxiliary synchronous signals and take the 14 symbol in the preposition subframe adjacent with described target-subframe, wherein, described target-subframe is the arbitrary subframe in described FDD frame structure or described tdd frame structure.

In technique scheme, preferably, described transmitting element is used for: after for channel state information reference signals described in each described discovery reference signal configuration, sub-carrier positions and the first subframe numbering reference table of subframe numbering corresponding relation and/or first operator's reference table of sub-carrier positions and operator's corresponding relation is sent to described terminal by RRC signaling, the position of the subcarrier taken according to the described channel state information reference signals received to make described terminal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described first subframe numbering reference table, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) first operator's reference table of corresponding stored the first subframe numbering reference table of corresponding relation of having sub-carrier positions and subframe to number and/or the corresponding relation of sub-carrier positions and operator is sent to terminal, terminal can be made according to channel state information reference signals and the actual position of the subcarrier taken of CSI-RS and the type of SSS, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the first subframe numbering reference table, thus make the synchronous of terminal achieve frame, and/or from first operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to enable terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, described transmitting element also for: after for channel state information reference signals described in each described discovery reference signal configuration, the described channel state information reference signals carrying scrambler is sent to described terminal, and second operator's reference table of the second subframe reference table of scrambler and subframe numbering corresponding relation and/or scrambler and operator's corresponding relation, to make described terminal according to the type of the difference of described scrambler with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described second subframe numbering reference table, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) there are the second subframe numbering reference table of scrambler and subframe numbering corresponding relation and/or second operator's reference table of scrambler and operator to terminal transmission corresponding stored, terminal can be made according to the type of the scrambler of channel state information reference signals with the auxiliary synchronous signals received, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the second subframe numbering reference table, thus make the synchronous of terminal achieve frame, and/or from second operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to enable terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, described transmitting element also for: after for channel state information reference signals described in each described discovery reference signal configuration, if send arbitrary discovery reference signal to described terminal, then send to described terminal and find the attribute information of reference signal and the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or find the attribute information of reference signal and the 3rd operator's reference table of subframe numbering corresponding relation, to make described terminal according to the type of the described attribute information of described arbitrary discovery reference signal with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

In technique scheme, preferably, described dispensing unit concrete also for: according to the type of the described auxiliary synchronous signals in the type of described frame structure and/or each described discovery reference signal, for at least one cell special reference and/or described channel state information reference signals described in each described discovery reference signal configuration, wherein, the type of described frame structure comprises: FDD frame structure and tdd frame structure.

In technique scheme, preferably, also comprise: determining unit, when the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in first to the 5th subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in first to the 5th subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is the first kind; When the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in the 6th to the tenth subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in the 6th to the tenth subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is Second Type.

In technique scheme, preferably, also comprise: detecting unit, before each described discovery reference signal of transmission, whether idlely detect subframe detection down channel by the down channel arranged in DMTC; Described transmitting element also for: when detecting that described down channel is idle, sending and detecting the nearest rearmounted discovery reference signal of character position that subframe takies with described down channel, and stopping sending other discovery reference signals in the described DMTC cycle; Otherwise, do not send described rearmounted discovery reference signal; And after the described down channel free time being detected, before the described rearmounted discovery reference signal of transmission, transmitting channel Seize ACK message, and the symbolic number that described channel occupancy signal takies is less than M, wherein, M be less than 14 positive integer.

In technique scheme, preferably, described transmitting element also for: when sending each described discovery reference signal, the down control channel in use authority frequency spectrum or unlicensed spectrum sends to described terminal and is used to indicate the Downlink Control Information whether sending each described discovery reference signal.

In this technical scheme, owing to there being the sent position of how many DRS in base station notification terminal DMTC, terminal will blind check how many times, but in fact, when base station detects that down channel is busy, DRS would not be sent, which increase the detection of complex of terminal, therefore, by sending Downlink Control Information and DCI to terminal, whether really can send DRS by indicating terminal, This further reduces the complexity that terminal detects DRS.

In technique scheme, preferably, 3rd control unit, for described in each described discovery reference signal configuration during channel state information reference signals, if described channel state information reference signals and the equipment that other have base station functions are the channel state information reference signals of each described discovery reference signal configuration take the target-subframe of identical true numbering or preposition subframe, then controlling described the channel state information reference signals subcarrier taken and the equipment that other have base station functions is that the position of the subcarrier that the channel state information reference signals of each described discovery reference signal configuration takies is different.

In technique scheme, preferably, described transmitting element also for: by RRC signaling, described transmission parameter is sent to by the described terminal with the device service of base station functions; And described configuration-system is applicable to the reference signal in LTE system.

Another aspect of the present invention proposes a kind of equipment with base station functions, comprising: the configuration-system of the reference signal according to any one of technique scheme.

In this technical scheme, by configuring the configuration-system of reference signal on the equipment with base station functions, the equipment with base station functions can be made to have the technique effect identical with the configuration-system of above-mentioned reference signal, repeat no more herein.

Another aspect of the invention proposes a kind of method of reseptance of reference signal, comprising: the described transmission parameter that the equipment described in reception with base station functions issues; Reference signal is found according at least one reception in described DMTC of described transmission parameter synchronization.

In this technical scheme, by receiving in DMTC, one or more discovery reference signal is set, can according to the transmission parameter of Equipments Setting with base station functions, specify the cycle of DMTC, total transmitting time of the discovery reference signal in a DMTC, number, the number of the symbol in each discovery reference signal, the various information such as position, thus while increasing the probability sending and find reference signal, the complexity that terminal detects DRS can be reduced, to receive DRS exactly, thus achieve frame is synchronous and subframe synchronous, wherein, have in a DMTC multiple frame structure (as the DMTC cycle be 40ms time, just have 4 frame structures) time, the plurality of transmission reference signal and DRS can in the different subframes of same frame structure, also can in the different subframes of different frame structure.

In technique scheme, preferably, the process of the described transmission parameter that the equipment described in described reception with base station functions issues, specifically comprise: the equipment described in reception with base station functions is by transmission cycle of the described DMTC of RRC transmitting signaling downwards and/or other time offset of described sub-frame level, with according to described transmission cycle and/or other time offset of described sub-frame level, determine the subframe that described DMTC takies; And/or there is the described total transmitting time of equipment by least one discovery reference signal described in RRC transmitting signaling downwards of base station functions, to determine number and the position of the subframe that at least one discovery reference signal described takies according to described total transmitting time described in receiving; And/or the equipment having a base station functions described in receiving is by described in RRC transmitting signaling downwards, at least one finds the number of reference signal, each described discovery reference signal takies symbolic number and/or other time offset of described symbol level, determines the position of the symbol of the described target-subframe that each described transmission reference signal takies and/or described preposition subframe with the symbolic number taken according to described number, each described discovery reference signal and/or other time offset of described symbol level; And/or there is described in receiving the channel state information reference signals of equipment by the described non-zero power of RRC transmitting signaling downwards of base station functions.

In this technical scheme, by receiving transmission cycle and/or other time offset of sub-frame level of issuing DMTC, first can determine which subframe DMTC occupies, accurately to receive DMTC, this is the transmission parameter accurately receiving DRS further, for realizing synchronously laying the foundation; In addition, by receiving the total transmitting time issued, number and the position of the subframe that at least one DRS takies can be determined; By receiving the position of the symbol of at least one the DRS number issued, symbolic number that each DRS takies and/or other time offset of symbol level accurately can determine total reception number of times of DRS, each DRS takies target-subframe and/or preposition subframe, and then realize synchronizing sub-frame; And the channel state information reference signals of the non-zero power issued is received by RRC signaling, can according to channel state information reference signals (CSI-RS, Rererence Signal) position of subcarrier that takies or scrambler accurately determine the true numbering of the subframe that DRS takies, thus achieve frame is synchronous.

In technique scheme, preferably, after receiving described channel state information reference signals, obtain the position of the subcarrier that described channel state information reference signals takies; The equipment described in reception with base station functions is by the described first subframe numbering reference table of RRC transmitting signaling downwards and/or described first operator's reference table; The position of subcarrier taken according to described channel state information reference signals and the type of the described auxiliary synchronous signals received, from described first subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, there is the equipment of base station functions by RRC signaling (Radio Resource Control by reception, wireless heterogeneous networks) first operator's reference table of the first subframe numbering reference table that the corresponding stored that issues has sub-carrier positions and subframe to number and/or sub-carrier positions and operator, can according to channel state information reference signals and the actual position of the subcarrier taken of CSI-RS and the type of SSS, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the first subframe numbering reference table, thus achieve frame is synchronous, and/or from first operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal, then compare with power threshold, thus determine the channel situation of up channel accurately.

In technique scheme, preferably, the equipment described in reception with base station functions is by the described channel state information reference signals carrying scrambler of RRC transmitting signaling downwards and described second subframe numbering reference table and/or described second operator's reference table; According to the difference of described scrambler and the type of the described auxiliary synchronous signals received, from described second subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

In this technical scheme, by receiving RRC signaling (Radio Resource Control, wireless heterogeneous networks) corresponding stored that issues has the second subframe numbering reference table of scrambler and subframe numbering corresponding relation and/or second operator's reference table of scrambler and operator's corresponding relation, terminal can be made according to the type of the scrambler of channel state information reference signals with the auxiliary synchronous signals received, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the second subframe numbering reference table, thus achieve frame is synchronous, and/or from second operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal, then compare with power threshold, thus determine the channel situation of up channel accurately.

In technique scheme, preferably, when receiving the arbitrary discovery reference signal at least one discovery reference signal described, and described 3rd subframe numbering reference table and/or described 3rd operator's reference table time, according to the described attribute information of described arbitrary discovery reference signal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

In this technical scheme, by receiving RRC signaling (Radio Resource Control, wireless heterogeneous networks) corresponding stored that issues has the attribute information of arbitrary discovery reference signal and the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) with the 3rd operator's reference table of the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or the attribute information of arbitrary discovery reference signal and operator's corresponding relation, can according to the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) and the type of auxiliary synchronous signals that receives, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the 3rd subframe numbering reference table, thus achieve frame is synchronous, and/or from the 3rd operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal, then compare with power threshold, thus determine the channel situation of up channel accurately.

Another aspect of the invention proposes a kind of receiving system of reference signal, comprising: the first receiving element, the described transmission parameter that the equipment described in reception with base station functions issues; Second receiving element, finds reference signal according at least one reception in described DMTC of described transmission parameter synchronization.

In technique scheme, preferably, described first receiving element specifically for: the equipment described in reception with base station functions by transmission cycle of the described DMTC of RRC transmitting signaling downwards and/or other time offset of described sub-frame level, with according to described transmission cycle and/or other time offset of described sub-frame level, determine the subframe that described DMTC takies; And/or there is the described total transmitting time of equipment by least one discovery reference signal described in RRC transmitting signaling downwards of base station functions, to determine number and the position of the subframe that at least one discovery reference signal described takies according to described total transmitting time described in receiving; And/or the equipment having a base station functions described in receiving is by described in RRC transmitting signaling downwards, at least one finds the number of reference signal, each described discovery reference signal takies symbolic number and/or other time offset of described symbol level, determines the position of the symbol of the described target-subframe that each described transmission reference signal takies and/or described preposition subframe with the symbolic number taken according to described number, each described discovery reference signal and/or other time offset of described symbol level; And/or there is described in receiving the channel state information reference signals of equipment by the described non-zero power of RRC transmitting signaling downwards of base station functions.

In technique scheme, preferably, also comprise: acquiring unit, after receiving described channel state information reference signals, obtain the position of the subcarrier that described channel state information reference signals takies; Described second receiving element also for: the equipment described in reception with base station functions by the described first subframe numbering reference table of RRC transmitting signaling downwards and/or described first operator's reference table; Described receiving system also comprises: the first determining unit, the position of subcarrier taken according to described channel state information reference signals and the type of the described auxiliary synchronous signals received, from described first subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In technique scheme, preferably, described second receiving element also for: the equipment described in reception with base station functions by the described channel state information reference signals carrying scrambler of RRC transmitting signaling downwards and described second subframe numbering reference table and/or described second operator's reference table; Described receiving system also comprises: the second determining unit, according to the difference of described scrambler and the type of the described auxiliary synchronous signals received, from described second subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or determine from described second operator's reference table the operator sending each described discovery reference signal.

In technique scheme, preferably, also comprise: the 3rd determining unit, when receiving the arbitrary discovery reference signal at least one discovery reference signal described, and described 3rd subframe numbering reference table and/or described 3rd operator's reference table time, according to the described attribute information of described arbitrary discovery reference signal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

Another aspect of the invention proposes a kind of terminal, comprising: the receiving system of the reference signal according to any one of technique scheme.

In this technical scheme, by arranging the receiving system of reference signal in terminal, terminal can be enable to detect comparatively easily, exactly and receive DRS, thus achieve frame is synchronous and subframe synchronous.

By technical scheme of the present invention, send while probability at increase DRS, can reduce the complexity that UE detects DRS as far as possible, to make terminal receive DRS exactly, thus achieve frame is synchronous and subframe synchronous.

Accompanying drawing explanation

Fig. 1 shows the schematic diagram of two kinds of working methods of unlicensed spectrum;

Regular schematic diagram is avoided in the interference that Fig. 2 shows Wi-Fi system;

Fig. 3 shows the structural representation based on the frame structure of FBE in correlation technique;

Fig. 4 shows the structural representation based on the LBT frame structure of LBE in correlation technique;

Fig. 5 shows the structural representation of the PSS/SSS in correlation technique in FDD frame structure;

Fig. 6 shows the structural representation of the PSS/SSS in correlation technique in tdd frame structure;

Fig. 7 shows the schematic flow sheet of the collocation method of reference signal according to an embodiment of the invention;

Fig. 8 shows the structural representation of the configuration-system of reference signal according to an embodiment of the invention;

Fig. 9 shows the structural representation with the equipment of base station functions according to an embodiment of the invention;

Figure 10 shows the schematic flow sheet of the method for reseptance of reference signal according to an embodiment of the invention;

Figure 11 shows the structural representation of the receiving system of reference signal according to an embodiment of the invention;

Figure 12 shows the structural representation of terminal according to an embodiment of the invention;

Figure 13 shows the structural representation configuring DRS in FDD frame structure according to an embodiment of the invention;

Figure 14 shows the structural representation configuring DRS in tdd frame structure according to an embodiment of the invention;

Figure 15 shows position relationship that sub-carrier positions according to an embodiment of the invention and subframe number and illustrates sectional drawing;

Figure 16 shows position relationship that sub-carrier positions according to another embodiment of the invention and subframe number and illustrates sectional drawing.

Embodiment

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

Fig. 7 shows the schematic flow sheet of the collocation method of reference signal according to an embodiment of the invention.

As shown in Figure 7, show the collocation method of the reference signal of one embodiment of the present of invention, comprising: step 702, at least one is set in DMTC and finds reference signal; Step 704, at least one discovery reference signal configuration described sends parameter; Step 706, is sent to described transmission parameter by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

Fig. 8 shows the structural representation of the configuration-system of reference signal according to an embodiment of the invention.

As shown in Figure 8, show the configuration-system 800 of the reference signal of one embodiment of the present of invention, comprising: setting unit 802, at least one is set in DMTC and finds reference signal; Dispensing unit 804, at least one discovery reference signal configuration described sends parameter; Transmitting element 806, is sent to described transmission parameter by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

In technique scheme, preferably, described transmission parameter comprises: the number of at least one discovery reference signal described, wherein, the number of at least one discovery reference signal described is: 1 to 5, and described dispensing unit 804 specifically for: be described at least one find that the described DMTC at reference signal place configures transmission cycle and/or other time offset of sub-frame level, and/or be the total transmitting time of at least one discovery reference signal configuration described, and/or for described at least one find the symbolic number that each described discovery reference signal configuration in reference signal can take and/or other time offset of symbol level, and/or be described at least one find the channel state information reference signals of each described at least one cell special reference of discovery reference signal configuration in reference signal and/or non-zero power.

In technique scheme, preferably, also comprise: the first control unit 808, after at least one cell special reference described in each described discovery reference signal configuration and/or described channel state information reference signals, control each described discovery reference signal to take continuously and described can take symbol, and the described number of symbols taking symbol is N, wherein, N is more than or equal to 3, and is less than or equal to 14.

In technique scheme, preferably, each described discovery reference signal includes: a master sync signal and an auxiliary synchronous signals, and described configuration-system also comprises: the second control unit 810, when the symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described, if the frame structure at each described discovery reference signal place is FDD frame structure, the described master sync signal controlled in each described discovery reference signal takies the 7th symbol in the target-subframe of described FDD frame structure, and control described auxiliary synchronous signals and take the 6th symbol in described target-subframe, if the frame structure at each described discovery reference signal place is tdd frame structure, the described master sync signal controlled in each described discovery reference signal takies the 3rd symbol in the target-subframe of described tdd frame structure, and control described auxiliary synchronous signals and take the 14 symbol in the preposition subframe adjacent with described target-subframe, wherein, described target-subframe is the arbitrary subframe in described FDD frame structure or described tdd frame structure.

In technique scheme, preferably, described transmitting element 806 for: after for channel state information reference signals described in each described discovery reference signal configuration, sub-carrier positions and the first subframe numbering reference table of subframe numbering corresponding relation and/or first operator's reference table of sub-carrier positions and operator's corresponding relation is sent to described terminal by RRC signaling, the position of the subcarrier taken according to the described channel state information reference signals received to make described terminal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described first subframe numbering reference table, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In technique scheme, preferably, described transmitting element 806 also for: after for channel state information reference signals described in each described discovery reference signal configuration, the described channel state information reference signals carrying scrambler is sent to described terminal, and second operator's reference table of the second subframe reference table of scrambler and subframe numbering corresponding relation and/or scrambler and operator's corresponding relation, to make described terminal according to the type of the difference of described scrambler with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described second subframe numbering reference table, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

In technique scheme, preferably, described transmitting element 806 also for: after for channel state information reference signals described in each described discovery reference signal configuration, if send arbitrary discovery reference signal to described terminal, then send to described terminal and find the attribute information of reference signal and the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or find the attribute information of reference signal and the 3rd operator's reference table of subframe numbering corresponding relation, to make described terminal according to the type of the described attribute information of described arbitrary discovery reference signal with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

In this technical scheme, by RRC signaling (Radio Resource Control, wireless heterogeneous networks) there are the attribute information of arbitrary discovery reference signal and the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe to terminal transmission corresponding stored, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) with the 3rd operator's reference table of the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or the attribute information of arbitrary discovery reference signal and operator's corresponding relation, terminal can be made according to the symbolic number that take of arbitrary discovery reference signal in target-subframe or preposition subframe, character position, content that each character position configures (namely PSS SSS CRS CSI-RS) and the type of auxiliary synchronous signals that receives, the true numbering of target-subframe or the true numbering of preposition subframe is accurately determined from the 3rd subframe numbering reference table, thus make terminal realize the synchronous of subframe, and/or from the 3rd operator's reference table, accurately determine the operator sending each discovery reference signal, the signal power of different operators is distinguished according to each DRS to make terminal, the RRM measurement result of the different cell of different operators can be obtained, also make when channel status detects, after the signal power from same operator can be removed by terminal or base station, then compare with power threshold, thus determine the channel situation of upstream or downstream channel accurately.

In technique scheme, preferably, described dispensing unit 804 concrete also for: according to the type of the described auxiliary synchronous signals in the type of described frame structure and/or each described discovery reference signal, for at least one cell special reference and/or described channel state information reference signals described in each described discovery reference signal configuration, wherein, the type of described frame structure comprises: FDD frame structure and tdd frame structure.

In technique scheme, preferably, also comprise: determining unit 812, when the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in first to the 5th subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in first to the 5th subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is the first kind; When the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in the 6th to the tenth subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in the 6th to the tenth subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is Second Type.

In technique scheme, preferably, also comprise: detecting unit 814, before each described discovery reference signal of transmission, whether idlely detect subframe detection down channel by the down channel arranged in DMTC; Described transmitting element 806 also for: when detecting that described down channel is idle, sending and detecting the nearest rearmounted discovery reference signal of character position that subframe takies with described down channel, and stopping sending other discovery reference signals in the described DMTC cycle; Otherwise, do not send described rearmounted discovery reference signal; And after the described down channel free time being detected, before the described rearmounted discovery reference signal of transmission, transmitting channel Seize ACK message, and the symbolic number that described channel occupancy signal takies is less than M, wherein, M be less than 14 positive integer.

In technique scheme, preferably, described transmitting element 806 also for: when sending each described discovery reference signal, the down control channel in use authority frequency spectrum or unlicensed spectrum sends to described terminal and is used to indicate the Downlink Control Information whether sending each described discovery reference signal.

In technique scheme, preferably, 3rd control unit 816, for described in each described discovery reference signal configuration during channel state information reference signals, if described channel state information reference signals and the equipment that other have base station functions are the channel state information reference signals of each described discovery reference signal configuration take the target-subframe of identical true numbering or preposition subframe, then controlling described the channel state information reference signals subcarrier taken and the equipment that other have base station functions is that the position of the subcarrier that the channel state information reference signals of each described discovery reference signal configuration takies is different.

In technique scheme, preferably, described transmitting element 806 also for: by RRC signaling, described transmission parameter is sent to by the described terminal with the device service of base station functions; And described configuration-system is applicable to the reference signal in LTE system.

Fig. 9 shows the structural representation with the equipment of base station functions according to an embodiment of the invention.

As shown in Figure 9, show the equipment 900 with base station functions of one embodiment of the present of invention, comprising: the configuration-system 800 of the reference signal according to any one of technique scheme.

In this technical scheme, by configuring the configuration-system 800 of reference signal on the equipment 900 with base station functions, the equipment 900 with base station functions can be made to have the technique effect identical with the configuration-system 800 of above-mentioned reference signal, repeat no more herein.

Figure 10 shows the schematic flow sheet of the method for reseptance of reference signal according to an embodiment of the invention.

As shown in Figure 10, show the method for reseptance of the reference signal of one embodiment of the present of invention, comprising: step 1002, the described transmission parameter that the equipment described in reception with base station functions issues; Step 1004, finds reference signal according at least one reception in described DMTC of described transmission parameter synchronization.

Figure 11 shows the structural representation of the receiving system of reference signal according to an embodiment of the invention.

As shown in figure 11, show the receiving system 1100 of the reference signal of one embodiment of the present of invention, comprising: the first receiving element 1102, the described transmission parameter that the equipment described in reception with base station functions issues; Second receiving element 1104, finds reference signal according at least one reception in described DMTC of described transmission parameter synchronization.

In technique scheme, preferably, described first receiving element 1102 specifically for: the equipment described in reception with base station functions by transmission cycle of the described DMTC of RRC transmitting signaling downwards and/or other time offset of described sub-frame level, with according to described transmission cycle and/or other time offset of described sub-frame level, determine the subframe that described DMTC takies; And/or there is the described total transmitting time of equipment by least one discovery reference signal described in RRC transmitting signaling downwards of base station functions, to determine number and the position of the subframe that at least one discovery reference signal described takies according to described total transmitting time described in receiving; And/or the equipment having a base station functions described in receiving is by described in RRC transmitting signaling downwards, at least one finds the number of reference signal, each described discovery reference signal takies symbolic number and/or other time offset of described symbol level, determines the position of the symbol of the described target-subframe that each described transmission reference signal takies and/or described preposition subframe with the symbolic number taken according to described number, each described discovery reference signal and/or other time offset of described symbol level; And/or there is described in receiving the channel state information reference signals of equipment by the described non-zero power of RRC transmitting signaling downwards of base station functions.

In technique scheme, preferably, also comprise: acquiring unit 1106, after receiving described channel state information reference signals, obtain the position of the subcarrier that described channel state information reference signals takies; Described second receiving element 1104 also for: the equipment described in reception with base station functions by the described first subframe numbering reference table of RRC transmitting signaling downwards and/or described first operator's reference table; Described receiving system also comprises: the first determining unit 1108, the position of subcarrier taken according to described channel state information reference signals and the type of the described auxiliary synchronous signals received, from described first subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

In technique scheme, preferably, described second receiving element 1104 also for: the equipment described in reception with base station functions by the described channel state information reference signals carrying scrambler of RRC transmitting signaling downwards and described second subframe numbering reference table and/or described second operator's reference table; Described receiving system also comprises: the second determining unit 1110, according to the difference of described scrambler and the type of the described auxiliary synchronous signals received, from described second subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or determine from described second operator's reference table the operator sending each described discovery reference signal.

In technique scheme, preferably, also comprise: the 3rd determining unit 1112, when receiving the arbitrary discovery reference signal at least one discovery reference signal described, and described 3rd subframe numbering reference table and/or described 3rd operator's reference table time, according to the described attribute information of described arbitrary discovery reference signal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

Figure 12 shows the structural representation of terminal according to an embodiment of the invention.

As shown in figure 12, show the terminal 1200 of one embodiment of the present of invention, comprising: the receiving system 1100 of the reference signal according to any one of technique scheme.

In this technical scheme, by arranging the receiving system 1100 of reference signal in terminal 1200, terminal 1200 can be made to detect comparatively easily, exactly and to receive DRS, thus achieve frame is synchronous and subframe synchronous.

The technical scheme (improvement project that the present invention proposes mainly for the second method in background technology) in the present invention is further described below in conjunction with Figure 13 to Figure 16:

1, in a DMTC, configure the sent position of multiple DRS, such as the length of traditional DRS is 1 ~ 5ms, so can configure 1 ~ 5 and can send position, and each transmission position length is less than or equal to 1ms.

2, in each transmission position, the relative position of PSS and SSS in DRS remains unchanged, as in fdd, and the symbol that SSS is close to above at PSS; And in TDD, SSS is before PSS and the symbol of two, interval.

3, in each transmission position, PSS and SSS in DRS takies fixing symbol position.Such as, in fdd, PSS is arranged in last symbol of first slot (time slot) of arbitrary subframe, and SSS and PSS is arranged in the same slot of same subframe, but SSS is arranged in penultimate symbol, carry previous symbol than PSS; For TDD, PSS is arranged in the 3rd symbol of arbitrary subframe, and SSS is arranged on the adjacent preposition subframe of arbitrary subframe with this (when subframe as arbitrary in this is 1# subframe, preposition subframe is exactly the 0# subframe of same frame structure, and this arbitrary subframe is when being 6# subframe, preposition subframe is exactly the 5# subframe of same frame structure) last symbol in send, shift to an earlier date 3 symbol than PSS.

4, control DRS takies N number of symbol number continuously, and N is more than or equal to 3 (the symbol number that in FDD, DRS takies is more than or equal to 3, as shown in Figure 5; In TDD, the symbol number that DRS takies is more than or equal to 4, and two symbol in the middle of PSS and SSS as shown in Figure 6 must be filled), and fill with existing CRS and/or NZP CSI-RS and/or new RS.In addition, in DRS except PSS and SSS, CRS must take at least 1 symbol, and NZPCSI-RS and new RS can have and can not have.

5, in addition, because PSS/SSS of the prior art sends at fixing subframe, thus can achieve frame synchronous.And the method PSS/SSS can send at any subframe, so in order to achieve frame synchronous, The present invention gives the method representing subframe numbering: namely according to different fill methods, in conjunction with the difference of SSS, terminal can be made to determine the true numbering of DRS, and detailed process is as follows:

0# ~ 4#subframe SSS of traditional No. subframe#0; 5# ~ 9#subframe SSS of traditional No. subframe#5, such subframe is just divided into two groups, next according to different fill methods, subframe numbers in differentiation group.

Because often group has 5 subframe, so at least want 5 kinds of fill methods.And PSS and SSS in DRS occupies two symbol, and the CRS in DRS must take a symbol:

1) for FDD frame structure:

As shown in figure 13, for the situation (taking the #5 subframe in FDD frame structure for DRS) of FDD, because the sign bit that CSI-RS may take is equipped with symbol#5 and #6, #9 and 10#5,12# and #13 (as shown in Figure 15 and Figure 16, wherein, the sent time-frequency location of CSI-RS when Figure 15 shows two transmitting antennas (namely antenna port is 15,16); The sent time-frequency location of CSI-RS when Figure 16 shows four transmitting antennas (namely antenna port is 15,16,17,18).In Figure 15 and Figure 16, the true numbering of abscissa symbol index conventional letter, and R _15,16represent CSI-RS in the transmission of antenna port 15 and 16 place, and R _17,18represent CSI-RS in the transmission of antenna port 17 and 18 place, the numbering in the R upper right corner represents the sent time-frequency location numbering of CSI-RS.Ordinate subcarrier index represents the label of subcarrier and the position of subcarrier), and symbol#5, #6 is occupied by PSS/SSS, so CSI-RS selects to take symbol#9 and #10, not selecting to take symbol#12 and #13 is to ensure the shortest DRS length.So DRS occasion (DRS can send position) occupies the symbol#5 ~ #10 in 1 subframe, altogether 6 symbol.

Symbol#5, #6, #7 are fixed as SSS, PSS, CRS respectively.Symbol#8 CRS fills, and when being 4 with antenna number, situation is the same, but this does not represent that antenna number is 4, also can be like this when antenna number is 2.Symbol#9 and #10 is filled by CSI-RS, and the sub-carrier positions at the CSI-RS place of different resource configuration (resource structures) is different, thus represents different subframe numberings.Here (this being equivalent to, has 12 kinds of CSI-RS can indicate 12 kinds of subframe numberings can to select only to take in 12 subcarriers the situation of 1 subcarrier, as shown in figure 15: CSI-RS time-frequency location during two transmitting antennas), also can select in 12 subcarriers, to be uniformly distributed the situation (this being equivalent to has 6 kinds of CSI-RS can indicate 6 kinds of subframe numberings, as shown in figure 16: CSI-RS time-frequency location during four transmitting antennas) taking two subcarriers.

2) for tdd frame structure (taking #5, #6 subframe in FDD frame structure for DRS):

As shown in figure 14, for the situation of TDD, because the sign bit that CSI-RS may take is equipped with symbol#5 and #6, #9 and #10, #12 and #13 (as shown in Figure 15 and Figure 16), and symbol#13, #2 are occupied by PSS/SSS, so it is that the data of resource configuration in order to ensure CSI-RS are more than 5 that CSI-RS selects to take symbol#9 and #10.So DRS occasion occupies 0 ~ 2,8 symbol altogether of symbol#9 ~ 13 in 1 subframe and lower 1 subframe.

Certainly, CSI-RS also can be selected to be placed on new symbol position, symbol#11 and #12 of such as above subframe, or symbol#3 and #4 of subframe below, like this, DRS just can only take 6 symbol.

In addition, visible from the above analysis, because the DRS of TDD occupies two subframe, and No. subframe of CSI-RS instruction is the numbering (i.e. the numbering of preposition subframe) of the subframe at CSI-RS place, as shown in figure 14.

In addition, if before each DRS sends, CCA detects that down channel is idle, and do not arrive the transmission position of DRS, then in order to busy channel, also reservation signal (preserved signal) or initial signal (initialize signal) or CRS or CSI-RS can be sent before DRS, but the temporal summation sending these signals obtains restricted, such as be less than M symbol, this can be avoided channel reservation holding time long, miscellaneous equipment cannot be robbed and account for channel.

6, introduce base station below and how to notify UE, the transmission parameter of DRS:

The cycle of RRC signaling DMTC, offset (i.e. sub-frame level other be biased);

The time span detecting DRS is needed, 1 ~ 5ms in RRC signaling DMTC;

The position number of DRS can be sent, 1 ~ 5 in RRC signaling DMTC, and symbol level other position offset and other time offset of symbol level (such as symbol#5), the number of symbols (such as 6) that each DRS takies.

The different subframe numbering that the different CSI-RS resource configuration of RRC signaling is corresponding.As shown in table 1 (i.e. the first subframe numbering reference table), comprise following 4 row with reference to figure 16:RRC signaling.The numbering of the resource configuration of the 1st row mark CSI-RS, the index (label) in the direct R upper right corner from figure of numbering obtains, a just representation, but can numbering be represented, such as: index is that the CSI-RS of the CSI-RS and non-zero power that #5 and the #11 sub carriers of 1 expression in every 12 subcarriers sends non-zero power takies #5 and #11 sub carriers, and other position is not for send CSI-RS, and be numbered the CSI-RS #4 and the #10 sub carriers in every 12 subcarriers of 6 expressions sending non-zero power, and other position is not for send CSI-RS, the rest may be inferred.Secondary series, is subframe numbering in the group that represents of the transmission correspondence of the non-zero power CSI-RS of this position, only represents 0 ~ 4; 3rd row are the types of SSS in DRS, if said that subframe is 0 ~ 4 before, have then used the SSS type and the first kind that send during subframe#0, otherwise use the SSS type and Second Type that send during subframe#5.4th row are subframe numbering i.e. true numberings that the final DRS provided in conjunction with secondary series and the 3rd row takies, and its process is: the secondary series subframe numbering that SSS is numbered 1 adds 5, and drawing final subframe numbering, is namely the 4th row.

Table 1

By above signaling, UE can blind check repeatedly, be notified of in RRC signaling in DMTC and have how many positions that can to send DRS, then UE will blind check how many times at most, until transmission DRS detected.Such as: each subframe in 5 subframe in the notification terminal DMTC of base station has 1 fixed position to send DRS, then UE just needs blind check maximum 5 times, but in fact some can send position because Channel Detection is done, and base station does not send DRS.

Therefore, in order to reduce UE blind check number of times further, base station can send indication signaling to UE when really have sent DRS, such as: by PDCCH (physical DownlinkControl Channel Physical Downlink Control Channel) or EPDCCH (Enhanced PhysicalDownlink Control Channel, strengthen downlink physical control channel) on mandate frequency spectrum or unlicensed spectrum, send DCI (Downlink Control Information, Downlink Control Information) indication signaling is to UE, so UE has just known that this position have sent DRS really.

The resourceconfiguration of the NZP CSI-RS of the same subframe transmission of neighbor cell is preferably different.Be convenient to utilize NZP CSI-RS measure signal intensity, if same subframe sends at same resource configuration, during measurement, NZP CSI-RS will be subject to the interference of adjacent cell, if adjacent cell sends at other character position, namely same character position is empty, then testing result can be more accurate.

7, the behavior of UE is introduced below:

UE receives RRC signaling, obtains the cycle of DMTC, offset; Thus which subframe navigates to DMTC be at.

UE receives RRC signaling, obtains in DMTC the time span needing to detect DRS, 1 ~ 5ms, thus recognizes and need at most to detect how many times DRS.

UE receives RRC signaling, obtains the position number that can send DRS in DMTC, 1 ~ 5, and other position of symbol level offset (such as symbol#5), the number of symbols (such as 6) that each DRS takies.Thus recognize that each DRS sends position and specifically comprises which symbol.

UE receives RRC signaling, obtains the different subframe numbering that different CSI-RS resource configuration is corresponding.By the positional information of CSI-RS detected, and the type of SSS, final subframe numbering is being drawn with reference to table 1.Detailed process is as follows: RRC signaling comprises following 4 row.The numbering of resource configuration of the 1st row mark CSI-RS, numbering directly from Figure 15 and Figure 16 the index in the R upper right corner obtain, a just representation, but can numbering be represented.Such as: index is that the CSI-RS of the CSI-RS and non-zero power that #5 and the #11 sub carriers of 1 expression in every 12 subcarriers sends non-zero power takies #5 and #11 sub carriers, and other position is not for send CSI-RS, and be numbered the CSI-RS #4 and the #10 sub carriers in every 12 subcarriers of 6 expressions sending non-zero power, and other position is not for send CSI-RS, the rest may be inferred.Secondary series, is subframe numbering in the group that represents of the transmission correspondence of the non-zero power CSI-RS of this position, only represents 0 ~ 4; 3rd row are the types of SSS in DRS, if said that subframe is 0 ~ 4 before, have then used the SSS type sent during subframe#0, otherwise use the SSS type sent during subframe#5.4th row are subframe numbering i.e. true numberings that the final DRS provided in conjunction with secondary series and the 3rd row takies, and its process is: the secondary series subframe numbering that SSS is numbered 1 adds 5, and drawing final subframe numbering, is namely the 4th row.

The difference of the resource configuration of the such as CSI-RS of the filling mode 8, in DRS also can be used for identifying different operators, operator can be changed into secondary series in table 1 and the 4th row subframe number by identification method can (as shown in table 2, namely table 2 represents first operator's reference table).Or the subframe numbering utilizing the scrambling code identification of NZP CSI-RS different is (as shown in table 3, namely table 3 represents the second subframe numbering reference table) and different operator (as shown in table 4, namely table 4 represents second operator's reference table), if scrambler is ECGI (E-UTRAN Cell GlobalIdentifier, E-UTRAN Cell Global Identifier), wherein, E-UTRAN (EvolvedUMTS Terrestrial Radio Access Network, the UMTS Terrestrial radio access network of evolution), the mobile communication wireless network namely in LTE.Because ECGI is exactly PLMN ID (PublicLand Mobile Network Identity, public land mobile network identifies)+PCI (physical-layer Cell identity, physical-layer cell identifier), so also can the direct resource configuration of NZP CSI-RS or scrambler display PLMN ID.Like this, if need terminal to judge operator identifier when CCA detects, so that after the signal power of same operator is removed again with threshold (power threshold), then CCA time look and comprise whole symbol, and be limited to the symbol sending operator identifier.Or the signal sending operator identifier is sent granularity reduce, also can operator identifier be detected within the shorter CCA time.

Table 2

Table 2 and Figure 16 can find out, use CSI-RS time-frequency location during four transmitting antenna of symbol#9 and #10, in conjunction with SSS type, can indicate at most 12 kinds of operators; If use CSI-RS time-frequency location during two transmitting antenna of symbol#9 and #10, in conjunction with SSS type, then 24 kinds of operators can be indicated at most.In addition, table 1 and table 2 also can combine, namely sub-carrier positions (the R such as, in Figure 15 that namely takies of CSI-RS time-frequency location ¹ _15,16represent CSI-RS take in time-frequency be numbered 11 the 12nd subcarrier, and to send at antenna end slogan 15,16 place, the like) and the type of SSS, the instruction subframe that joins together numbers and operator.

Table 3

Shown in table 3, because only need instruction 10 subframe numbering, and two groups can be divided into by SSS type, so only need the interior 5 kinds of subframe numbering of instruction group, then 5 groups of different scramblers.

Table 4

Table 4 can be found out, uses 5 kinds of scramblers, in conjunction with SSS type, can indicate at most 10 kinds of operators; If need to indicate more kinds of operator, then increase scrambler number.In addition, table 3 and table 4 also can combine, namely the type of CSI-RS scrambler and SSS, and join together instruction subframe numbering and operator.

Or 4 table combination in any are got up above, the type of the time-frequency location of CSI-RS, scrambler and SSS, join together instruction subframe numbering and operator.

Finally, the attribute information of the composition of DRS is different also can identify different No. subframe (as shown in table 5, namely table 5 represents the 3rd subframe numbering reference table) or operator (as shown in table 6, namely table 6 represents the 3rd operator's reference table), such as FDD is made up of multiple DRS's:

Composition 1: comprise symbol#4 (filling CRS), #5 (filling SSS), #6 (filling PSS);

Composition 2: comprise symbol#5 (filling SSS), #6 (filling PSS), #7 (filling CRS);

Composition 3: comprise symbol#4 (filling CRS), #5 (filling SSS), #6 (filling PSS), 7 (filling CRS);

Composition 4: comprise symbol#5 (filling SSS), #6 (filling PSS), 7 (filling CRS), #8 (filling CRS), #9 (filling NZP CSI-RS), 10 (filling NZP CSI-RS);

Composition 5: comprise symbol#4 (filling CRS), #5 (filling SSS), #6 (filling PSS), #7 (filling CRS), #8 (filling CRS), #9 (filling NZP CSI-RS), #10 (filling NZP CSI-RS);

Composition 6: comprise symbol#4 (filling CRS), #5 (filling SSS), #6 (filling PSS), #7 (filling CRS), #8 (filling CRS), #9 (filling NZP CSI-RS), #10 (NZP CSI-RS fills), #11 (filling CRS);

Composition 7: comprise symbol#5 (filling SSS), #6 (filling PSS), #7 (filling CRS), #8 (filling CRS), #9 (filling NZP CSI-RS), #10 (filling NZPCSI-RS), #11 (filling CRS).

And its signaling and UE behavior similar, DRS form attribute information difference will indicate different No. subframe.

Table 5

Table 5 provides according to the attribute information of DRS composition different, and the number of symbols such as taken, position is different with the content that each symbol is filled, and the type in conjunction with SSS indicates subframe to number.

Table 6

The attribute information that table 6 forms according to DRS is different, and the number of symbols such as taken, position is different with the content that each symbol is filled, and the type in conjunction with SSS indicates operator, if want to indicate more operator, then uses more how different attribute informations.

The content of table 2-table 6 can the same with table 1 by RRC signaling to terminal, the behavior of terminal is also the same with when receiving the RRC signaling of table 1, decides subframe numbering and/or operator by the information that receives and reference table.

More than be described with reference to the accompanying drawings technical scheme of the present invention, sent while probability at increase DRS, can reduce the complexity that UE detects DRS as far as possible, to make terminal receive DRS exactly, thus achieve frame is synchronous and subframe synchronous.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a collocation method for reference signal, for having the equipment of base station functions, is characterized in that, comprising:

At least one is set in DMTC and finds reference signal;

For at least one discovery reference signal configuration described sends parameter;

Described transmission parameter is sent to by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

2. the collocation method of reference signal according to claim 1, is characterized in that,

Described transmission parameter comprises: the number of at least one discovery reference signal described, and wherein, the number of at least one discovery reference signal described is: 1 to 5, and

The described process being at least one discovery reference signal configuration described and sending parameter, specifically comprises:

For the described DMTC at least one discovery reference signal place described configures transmission cycle and/or other time offset of sub-frame level, and/or

For the total transmitting time of at least one discovery reference signal configuration described, and/or

The symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described and/or other time offset of symbol level, and/or

For described at least one find the channel state information reference signals of each described at least one cell special reference of discovery reference signal configuration in reference signal and/or non-zero power.

3. the collocation method of reference signal according to claim 2, is characterized in that,

After at least one cell special reference described in each described discovery reference signal configuration and/or described channel state information reference signals, control each described discovery reference signal to take continuously and described can take symbol, and the described number of symbols taking symbol is N, wherein, N is more than or equal to 3, and is less than or equal to 14.

4. the collocation method of reference signal according to claim 2, is characterized in that,

Each described discovery reference signal includes: a master sync signal and an auxiliary synchronous signals, and

When the symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described, if the frame structure at each described discovery reference signal place is FDD frame structure, the described master sync signal controlled in each described discovery reference signal takies the 7th symbol in the target-subframe of described FDD frame structure, and controls described auxiliary synchronous signals and take the 6th symbol in described target-subframe;

If the frame structure at each described discovery reference signal place is tdd frame structure, the described master sync signal controlled in each described discovery reference signal takies the 3rd symbol in the target-subframe of described tdd frame structure, and control described auxiliary synchronous signals and take the 14 symbol in the preposition subframe adjacent with described target-subframe, wherein, described target-subframe is the arbitrary subframe in described FDD frame structure or described tdd frame structure.

5. the collocation method of reference signal according to claim 4, is characterized in that,

After for channel state information reference signals described in each described discovery reference signal configuration, sub-carrier positions and the first subframe numbering reference table of subframe numbering corresponding relation and/or first operator's reference table of sub-carrier positions and operator's corresponding relation is sent to described terminal by RRC signaling, the position of the subcarrier taken according to the described channel state information reference signals received to make described terminal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described first subframe numbering reference table, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

6. the collocation method of reference signal according to claim 4, is characterized in that,

After for channel state information reference signals described in each described discovery reference signal configuration, the described channel state information reference signals carrying scrambler is sent to described terminal, and second operator's reference table of the second subframe reference table of scrambler and subframe numbering corresponding relation and/or scrambler and operator's corresponding relation, to make described terminal according to the type of the difference of described scrambler with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described second subframe numbering reference table, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

7. the collocation method of reference signal according to claim 4, is characterized in that,

After for channel state information reference signals described in each described discovery reference signal configuration, if send arbitrary discovery reference signal to described terminal, then send to described terminal and find the attribute information of reference signal and the 3rd subframe numbering reference table of subframe numbering corresponding relation and/or find the attribute information of reference signal and the 3rd operator's reference table of subframe numbering corresponding relation, to make described terminal according to the type of the described attribute information of described arbitrary discovery reference signal with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

8. the collocation method of reference signal according to claim 3, is characterized in that,

The process of the described channel state information reference signals at least one cell special reference described at least one each described discovery reference signal configuration finding in reference signal described and/or non-zero power, specifically comprises:

According to the type of the described auxiliary synchronous signals in the type of described frame structure and/or each described discovery reference signal, for at least one cell special reference and/or described channel state information reference signals described in each described discovery reference signal configuration, wherein, the type of described frame structure comprises: FDD frame structure and tdd frame structure.

9. the collocation method of the reference signal according to any one of claim 5 to 8, is characterized in that,

When the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in first to the 5th subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in first to the 5th subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is the first kind;

When the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in the 6th to the tenth subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in the 6th to the tenth subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is Second Type.

10. the collocation method of reference signal according to any one of claim 1 to 8, is characterized in that,

Before each described discovery reference signal of transmission, whether idlely detect subframe detection down channel by the down channel arranged in DMTC;

When detecting that described down channel is idle, sending and detecting the nearest rearmounted discovery reference signal of character position that subframe takies with described down channel, and stopping sending other discovery reference signals in the described DMTC cycle; Otherwise, do not send described rearmounted discovery reference signal; And

After the described down channel free time being detected, before the described rearmounted discovery reference signal of transmission, transmitting channel Seize ACK message, and the symbolic number that described channel occupancy signal takies is less than M, wherein, M be less than 14 positive integer.

The collocation method of 11. reference signals according to any one of claim 1 to 8, is characterized in that,

When sending each described discovery reference signal, the down control channel in use authority frequency spectrum or unlicensed spectrum sends to described terminal and is used to indicate the Downlink Control Information whether sending each described discovery reference signal.

The collocation method of 12. reference signals according to any one of claim 1 to 8, is characterized in that,

For described in each described discovery reference signal configuration during channel state information reference signals, if described channel state information reference signals and the equipment that other have base station functions are the channel state information reference signals of each described discovery reference signal configuration take the target-subframe of identical true numbering or preposition subframe, then controlling described the channel state information reference signals subcarrier taken and the equipment that other have base station functions is that the position of the subcarrier that the channel state information reference signals of each described discovery reference signal configuration takies is different.

The collocation method of 13. reference signals according to any one of claim 1 to 8, is characterized in that,

Described described transmission parameter to be sent to by the described terminal with the device service of base station functions, specifically to comprise:

By RRC signaling, described transmission parameter is sent to by the described terminal with the device service of base station functions; And

Described collocation method is applicable to the reference signal in LTE system.

The configuration-system of 14. 1 kinds of reference signals, for having the equipment of base station functions, is characterized in that, comprising:

Setting unit, arranges at least one and finds reference signal in DMTC;

Dispensing unit, at least one discovery reference signal configuration described sends parameter;

Transmitting element, is sent to described transmission parameter by the described terminal with the device service of base station functions, receives at least one discovery reference signal described to make described terminal according to described transmission parameter.

The configuration-system of 15. reference signals according to claim 14, is characterized in that,

Described dispensing unit specifically for:

The configuration-system of 16. reference signals according to claim 15, is characterized in that, also comprise:

First control unit, after at least one cell special reference described in each described discovery reference signal configuration and/or described channel state information reference signals, control each described discovery reference signal to take continuously and described can take symbol, and the described number of symbols taking symbol is N, wherein, N is more than or equal to 3, and is less than or equal to 14.

The configuration-system of 17. reference signals according to claim 15, is characterized in that,

Described configuration-system also comprises:

Second control unit, when the symbolic number that can take for each described discovery reference signal configuration at least one discovery reference signal described, if the frame structure at each described discovery reference signal place is FDD frame structure, the described master sync signal controlled in each described discovery reference signal takies the 7th symbol in the target-subframe of described FDD frame structure, and controls described auxiliary synchronous signals and take the 6th symbol in described target-subframe;

The configuration-system of 18. reference signals according to claim 17, is characterized in that,

Described transmitting element is used for:

The configuration-system of 19. reference signals according to claim 17, is characterized in that,

Described transmitting element also for: after for channel state information reference signals described in each described discovery reference signal configuration, the described channel state information reference signals carrying scrambler is sent to described terminal, and second operator's reference table of the second subframe reference table of scrambler and subframe numbering corresponding relation and/or scrambler and operator's corresponding relation, to make described terminal according to the type of the difference of described scrambler with the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described second subframe numbering reference table, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

The configuration-system of 20. reference signals according to claim 17, is characterized in that,

Described transmitting element also for:

The configuration-system of 21. reference signals according to claim 16, is characterized in that,

Described dispensing unit concrete also for:

22., according to claim 18 to the configuration-system of the reference signal according to any one of 21, is characterized in that, also comprise:

Determining unit, when the described preposition subframe that described auxiliary synchronous signals takies be described target-subframe that arbitrary subframe in first to the 5th subframe of described tdd frame structure or described auxiliary synchronous signals take is the arbitrary subframe in first to the 5th subframe of described FDD frame structure, determine that the type of described auxiliary synchronous signals is the first kind;

23., according to claim 14 to the configuration-system of the reference signal according to any one of 21, is characterized in that,

Whether idle detecting unit, before each described discovery reference signal of transmission, detect subframe detection down channel by the down channel arranged in DMTC;

Described transmitting element also for:

24., according to claim 14 to the configuration-system of the reference signal according to any one of 21, is characterized in that,

Described transmitting element also for:

25., according to claim 14 to the configuration-system of the reference signal according to any one of 21, is characterized in that,

3rd control unit, for described in each described discovery reference signal configuration during channel state information reference signals, if described channel state information reference signals and the equipment that other have base station functions are the channel state information reference signals of each described discovery reference signal configuration take the target-subframe of identical true numbering or preposition subframe, then controlling described the channel state information reference signals subcarrier taken and the equipment that other have base station functions is that the position of the subcarrier that the channel state information reference signals of each described discovery reference signal configuration takies is different.

26., according to claim 14 to the configuration-system of the reference signal according to any one of 21, is characterized in that,

Described transmitting element also for:

Described configuration-system is applicable to the reference signal in LTE system.

27. 1 kinds of equipment with base station functions, is characterized in that, comprising: the configuration-system of the reference signal according to any one of claim 14 to 26.

The method of reseptance of 28. 1 kinds of reference signals, for terminal, is characterized in that, described terminal is connected with the equipment with base station functions according to claim 27, and described method of reseptance comprises:

The described transmission parameter that the equipment described in reception with base station functions issues;

Reference signal is found according at least one reception in described DMTC of described transmission parameter synchronization.

The method of reseptance of 29. reference signals according to claim 28, is characterized in that,

The process of the described transmission parameter that the equipment described in described reception with base station functions issues, specifically comprises:

The equipment described in reception with base station functions, by transmission cycle of the described DMTC of RRC transmitting signaling downwards and/or other time offset of described sub-frame level, with according to described transmission cycle and/or other time offset of described sub-frame level, determines the subframe that described DMTC takies; And/or

There is the described total transmitting time of equipment by least one discovery reference signal described in RRC transmitting signaling downwards of base station functions, to determine number and the position of the subframe that at least one discovery reference signal described takies according to described total transmitting time described in reception; And/or

The equipment described in reception with base station functions, by described in RRC transmitting signaling downwards, at least one finds the number of reference signal, each described discovery reference signal takies symbolic number and/or other time offset of described symbol level, determines the position of the symbol of the described target-subframe that each described transmission reference signal takies and/or described preposition subframe with the symbolic number taken according to described number, each described discovery reference signal and/or other time offset of described symbol level; And/or

There is described in reception the channel state information reference signals of equipment by the described non-zero power of RRC transmitting signaling downwards of base station functions.

The method of reseptance of 30. reference signals according to claim 29, is characterized in that,

After receiving described channel state information reference signals, obtain the position of the subcarrier that described channel state information reference signals takies;

The equipment described in reception with base station functions is by the described first subframe numbering reference table of RRC transmitting signaling downwards and/or described first operator's reference table;

The position of subcarrier taken according to described channel state information reference signals and the type of the described auxiliary synchronous signals received, from described first subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

The method of reseptance of 31. reference signals according to claim 29, is characterized in that,

The equipment described in reception with base station functions is by the described channel state information reference signals carrying scrambler of RRC transmitting signaling downwards and described second subframe numbering reference table and/or described second operator's reference table;

According to the difference of described scrambler and the type of the described auxiliary synchronous signals received, from described second subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described second operator's reference table, determine the operator sending each described discovery reference signal.

The method of reseptance of 32. reference signals according to claim 29, is characterized in that,

When receiving the arbitrary discovery reference signal at least one discovery reference signal described, and described 3rd subframe numbering reference table and/or described 3rd operator's reference table time, according to the described attribute information of described arbitrary discovery reference signal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

The receiving system of 33. 1 kinds of reference signals, for terminal, is characterized in that, described terminal is connected with the equipment with base station functions according to claim 27, and described receiving system comprises:

First receiving element, the described transmission parameter that the equipment described in reception with base station functions issues;

Second receiving element, finds reference signal according at least one reception in described DMTC of described transmission parameter synchronization.

The receiving system of 34. reference signals according to claim 33, is characterized in that,

Described first receiving element specifically for:

The receiving system of 35. reference signals according to claim 34, is characterized in that, also comprise:

Acquiring unit, after receiving described channel state information reference signals, obtains the position of the subcarrier that described channel state information reference signals takies;

Described second receiving element also for:

Described receiving system also comprises:

First determining unit, the position of subcarrier taken according to described channel state information reference signals and the type of the described auxiliary synchronous signals received, from described first subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or from described first operator's reference table, determine the operator sending each described discovery reference signal.

The receiving system of 36. reference signals according to claim 34, is characterized in that,

Described second receiving element also for:

Described receiving system also comprises:

Second determining unit, according to the difference of described scrambler and the type of the described auxiliary synchronous signals received, from described second subframe numbering reference table, determine the true numbering of described target-subframe or the true numbering of described preposition subframe, and/or determine from described second operator's reference table the operator sending each described discovery reference signal.

The receiving system of 37. reference signals according to claim 34, is characterized in that, also comprise:

3rd determining unit, when receiving the arbitrary discovery reference signal at least one discovery reference signal described, and described 3rd subframe numbering reference table and/or described 3rd operator's reference table time, according to the described attribute information of described arbitrary discovery reference signal and the type of the described auxiliary synchronous signals received, the true numbering of described target-subframe or the true numbering of described preposition subframe is determined from described 3rd subframe numbering reference table, and/or from described 3rd operator's reference table, determine the operator sending described arbitrary discovery reference signal, wherein, described attribute information comprises: the symbolic number that take of described arbitrary discovery reference signal in described target-subframe or described preposition subframe, the described master sync signal that character position and described character position are configured, described auxiliary synchronous signals, the channel state information reference signals of at least one cell special reference described and/or described non-zero power.

38. 1 kinds of terminals, is characterized in that, comprising: the receiving system of the reference signal according to any one of claim 33 to 37.