CN106165333B

CN106165333B - A kind of method, apparatus for sending, receiving signal

Info

Publication number: CN106165333B
Application number: CN201480072372.3A
Authority: CN
Inventors: 官磊; 马莎; 郑娟; 余政
Original assignee: Huawei Technologies Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2014-12-10
Filing date: 2014-12-10
Publication date: 2019-05-10
Anticipated expiration: 2034-12-10
Also published as: WO2016090567A1; CN106165333A

Abstract

The embodiment of the present invention proposes a kind of method for sending signal, and the base station of U-LTE system obtains the right to use of the channel in unlicensed spectrum in time window；After the right to use for obtaining the channel, the first moment in the time window starts to send the first signal on that channel for the base station；The base station sends instruction message at the second moment, wherein second moment is no earlier than the cut-off time of the time window, wherein the instruction message includes the instruction that the base station sends first signal in the time window.The method provided according to embodiments of the present invention, the base station can send first signal of including but not limited to one of control channel, data channel, reference signal or combination as early as possible after obtaining the right to use of channel of unlicensed spectrum, the wasting of resources caused by sending filling signal is avoided, to improve the utilization rate of resource；User terminal can be correctly demodulated or decoded to received signal under the premise of hardly increasing computational complexity according to instruction message.

Description

A kind of method, apparatus for sending, receiving signal

Technical field

The present embodiments relate to radio spectrum resources technical field is competed in the communications field, especially communication equipment.

Background technique

In existing mobile communications network, frequency spectrum resource used in operator is divided into two kinds, and one kind is unlicensed spectrum Resource, one kind are authorization frequency spectrum resource.Frequency spectrum resource is authorized, i.e., the operator for only having purchased the authorization frequency spectrum just has the right to make With.Unlicensed spectrum resource does not need to buy, and freely uses as long as meeting certain requirement, authorized spectrum band it is rare, Expensive today, unlicensed spectrum resource is just gradually by the concern of operator.It is how reasonable, efficient in unauthorized frequency range Competition to send resource, be a problem to be solved.

A kind of method of existing competitive resource is first to detect to send (Listen Before Talk, LBT) afterwards, LBT's Basic thought are as follows: before each communication equipment sends signal on some channel, whether idle, i.e., if needing first to detect present channel Whether can detecte neighbouring node and occupying the channel transmission signal, the detection process is referred to as idle channel evaluation and test (Clear Channel Assessment, CCA)；If detecting channel idle whithin a period of time, the communication equipment Signal can be sent；If detecting that channel is occupied, which currently can not just send signal.

Above-mentioned this competition is utilized extensively in existing unlicensed spectrum, such as Wi-Fi system.But for class It is this with fixed subframe side like unauthorized long term evolution (Unlicensed Long Term Evolution, U-LTE) system For the system on boundary, the problem that directly resource utilization can be brought low using this mechanism, the characteristic of this and fixed sub-frame boundary It is related:

By taking U-LTE system as an example, the U-LTE system inherited frame structure of LTE system needs relatively-stationary frame knot Structure, and the boundary of frame or sub-frame boundary be in time it is fixed, in other words, for a U-LTE system, Perhaps sub-frame boundary corresponds to the initial time that frame or sub-frame boundary at the time of determination include frame or subframe to frame boundaries in time And cut-off time.The mode of this fixed frame boundaries or sub-frame boundary has the advantages that receiving end is synchronous with transmitting terminal Complexity reduces；Neighboring community can do interference coordination by time synchronization, this is particularly important for TDD system；It carries out non- When authorizing carrier wave and authorizing the carrier wave polymerization of carrier wave, it is ensured that the time synchronization of unauthorized carrier wave and authorization carrier wave, in guarantee Row feedback channel can be sent on authorization carrier wave, reduce the forward delay interval of feedback channel.

When the communication equipment of communication equipment and Wi-Fi system in U-LTE system competes the resource of unlicensed spectrum simultaneously, It will appear new problem: for the communication equipment of Wi-Fi system, when its determination can be with busy channel, confirming in other words When having competed the transmission resource of channel, which directly transmits the signal comprising valid data；But for U-LTE For communication equipment in system, since confirmation can be to be random at the time of busy channel, so in general, the determination It can be with the sub-frame boundary of U-LTE system to be often that cannot be aligned at the time of busy channel, if the communication equipment is direct The signal including valid data is sent, then user equipment is difficult to dock since user equipment is limited to operational capability and power consumption The signal of receipts carries out blind Detecting correctly to obtain the valid data in signal.

A kind of solution to this problem is, when the communication equipment confirmation in U-LTE system can be with busy channel, but really When approving not to be aligned with the initial time of subframe at the time of busy channel, the communication equipment sends filling signal first to occupy The channel prevents the channel from being occupied by other communication equipments, until the initial time of next subframe starts, the U- The communication equipment of LTE system sends the signal comprising valid data, and the useful signal is different from filling signal, and useful signal is Refer to include but is not limited to one of control channel, data channel or reference signal or combination；Those skilled in the art should know Road actually refers to the corresponding signal of the data being carried in control channel or holds when mentioning control channel, data channel The corresponding signal of data on a data channel is carried, the present invention does not distinguish this.The prior art is in specific application There are problems: the time span of an existing LTE system perhaps subframe in U-LTE be generally 1ms and for LTE or For the communication equipment of U-LTE, the time span of one-time continuous busy channel is no more than 10 subframes.According to the prior art, U- LTE communication equipment determination can with busy channel after the time span longest of filling signal that sends be almost 1 subframe, then Even if will also result in about 10% wasting of resources to continuously transmit 10 subframes in terms of, this provides valuable wireless frequency spectrum It is difficult to receive for the utilization in source.

To sum up, the prior art has that resource utilization is low.

Summary of the invention

In order to solve the problems, such as that resource utilization of the existing technology is low, the embodiment of the present invention proposes a kind of transmission letter Number method and apparatus:

In a first aspect, the embodiment of the invention provides a kind of methods for sending signal, comprising:

The base station of U-LTE system obtains the right to use of the channel in unlicensed spectrum in time window；

After the right to use for obtaining the channel, the first moment in the time window starts described for the base station The first signal is sent on channel；Wherein, first signal includes following at least one: control channel, data channel, with reference to letter Number；

The base station sends instruction message at the second moment；

Wherein, second moment is no earlier than the cut-off time of the time window；Wherein, the instruction message includes institute State the instruction that base station sends first signal in the time window.

In the first possible implementation of the first aspect, when the cut-off time of the time window is with described second There are time intervals between quarter.

With reference to first aspect or first aspect the first possible implementation, in second of possible implementation In, the time span of time span that the time window includes less than a subframe；Or the time window include when Between length be equal to a subframe time span.

With reference to first aspect or first aspect the first to second any one possible implementation, at the third In possible implementation, the time window includes each portion of time resource in continuous two subframes.

With reference to first aspect or first aspect first to the third any one possible implementation, at the 4th kind In possible implementation, second moment is located at the predetermined time of subframe.

With reference to first aspect or first to fourth kind of first aspect any one possible implementation, at the 5th kind In possible implementation, second moment includes the starting of next subframe of subframe where the time window cut-off time Moment；Or second moment includes N number of symbol pair that traces back before the end time of subframe where time window cut-off time At the time of answering, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

With reference to first aspect or first aspect first is to the 5th kind of any one possible implementation, at the 6th kind In possible implementation, channel of the instruction message in authorization frequency spectrum；Or the instruction message is described non- Authorize the channel of frequency spectrum.

With reference to first aspect or first aspect first is to the 6th kind of any one possible implementation, at the 7th kind In possible implementation, first signal includes one of control channel, data channel and reference signal or combines, described Instruction message indicates that first moment of the base station in the time window sends first signal；Or described One signal includes reference signal, and the instruction message indicates that the base station sends first signal in the time window.

With reference to first aspect or first aspect first is to the 7th kind of any one possible implementation, at the 8th kind In possible implementation, first moment of the base station after the right to use for obtaining the channel, in the time window Start to send the first signal on that channel to include: that the base station sends reference signal since first moment, wherein Time interval where first moment and first moment between the end time of subframe is less than threshold value；Or the base Stand and send control channel, one of data channel or combination since first moment, wherein first moment with it is described Time interval where first moment between the end time of subframe is not less than the threshold value.

Any one in 7th kind of possible implementation and the 8th kind of possible implementation with reference to first aspect Possible implementation, in the 9th kind of possible implementation, the reference signal is aperiodic reference signal, the non-week Running time-frequency resource of the phase reference signal in subframe is preconfigured or short notice；Or the reference signal is period ginseng Signal is examined, the running time-frequency resource of the period of the periodic reference signal and the periodic reference signal in subframe is to be pre-configured with 's.

With reference to first aspect or first aspect first is to the 9th kind of any one possible implementation, at the tenth kind In possible implementation, the instruction message further includes the time span and/or letter that the channel is used continuously in the base station The information of road switching.

Second aspect, the embodiment of the invention provides a kind of methods for receiving signal, comprising:

The user equipment of U-LTE system receives and caches the signal on unlicensed spectrum channel, wherein out of time window The first moment, include the first signal that base station is sent in the reception and the signal that caches, first signal includes One of control channel, data channel, reference signal or combination；

Second reception instruction message of the user equipment after the time window cut-off time；Wherein, described Instruction message carries the information in the signal for receiving and caching in the time window including first signal；

The user equipment detects first signal according to the instruction message.

In the first possible implementation of the second aspect, when the cut-off time of the time window is with described second There are time intervals between quarter.

In conjunction with second aspect or second aspect the first possible implementation, in second of possible implementation In, the time span of time span that the time window includes less than a subframe；Or the time window include when Between length be equal to a subframe time span.

In conjunction with second aspect or second aspect the first to second any one possible implementation, at the third In possible implementation, the time window includes each portion of time resource in continuous two subframes.

In conjunction with second aspect or second aspect first to the third any one possible implementation, at the 4th kind In possible implementation, second moment includes the predefined moment.

In conjunction with second aspect or first to fourth kind of second aspect any one possible implementation, at the 5th kind In possible implementation, second moment includes the starting of next subframe of subframe where the time window cut-off time Moment；Or second moment includes N number of symbol that traces back before the end time of subframe where time window cut-off time At the time of corresponding, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

In conjunction with second aspect or second aspect first to the 5th kind of any one possible implementation, at the 6th kind In possible implementation, channel of the instruction message in authorization frequency spectrum；Or the instruction message is described non- Authorize the channel of frequency spectrum.

In conjunction with second aspect or second aspect first to the 6th kind of any one possible implementation, at the 7th kind In possible implementation, the user equipment is received and the signal cached further includes, from the cut-off time of the time window Signal between at the time of detecting the instruction message.

In conjunction with second aspect or second aspect first to the 7th kind of any one possible implementation, at the 8th kind In possible implementation, it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of one signal, comprising: first signal includes one of data channel, control channel or combination, the instruction message It carries since the first moment of the time window, includes described the in the signal that receives and cache in the time window The information of one signal.

In conjunction with the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation, the user is set For according to the instruction message, first signal is detected, comprising: the user equipment determines institute according to the instruction message Stated for the first moment；The user equipment decodes first signal according to first moment.

In conjunction with second aspect or second aspect first to the 7th kind of any one possible implementation, at the tenth kind In possible implementation, it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of one signal, comprising: first signal includes reference signal, and the instruction message carries the from the time window One moment included the information of first signal in the signal for receiving and caching in the time window；Or it is described First signal includes reference signal, and it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of first signal.

In conjunction with the tenth kind of possible implementation of second aspect, in a kind of the tenth possible implementation, the user Equipment detects the reference signal according to the information at the first moment carried in the instruction message；Or the user equipment According to the instruction message, the reference signal is detected.

In conjunction with second aspect or second aspect first to the 7th kind of any one possible implementation, the 12nd In the possible implementation of kind, the instruction message was carried since the first moment of the time window, in the time window It include the information of first signal in the interior signal for receiving and caching of mouth；The user equipment is according to the instruction message, really Fixed first signal includes reference signal, wherein where the first moment and first moment of the instruction message instruction Time interval between the end time of subframe is less than threshold value；Or the user equipment determines institute according to the instruction message Stating the first signal includes one of data channel, control channel or combination, wherein instruction message instruction described first when It carves and the time interval where first moment between the end time of subframe is not less than the threshold value.

In conjunction with second aspect or second aspect first, into the 7th kind and the tenth to the 12nd kind, any one may Implementation, in the 13rd kind of possible implementation, the reference signal be aperiodic reference signal, it is described aperiodic Running time-frequency resource of the reference signal in subframe is preconfigured or short notice；Or the reference signal is cycle reference Signal, the running time-frequency resource of the period of the periodic reference signal and the periodic reference signal in subframe is to be pre-configured with 's.

In conjunction with first to the 13rd kind of any one possible implementation of second aspect or second aspect, the tenth In four kinds of possible implementations, the instruction message further include the channel continuously receive signal time span and/or The information of channel switching.

The third aspect, the embodiment of the invention provides a kind of device for sending signal, including transceiver and processor, In: the processor is used under the assistance of the transceiver, and making for the channel in unlicensed spectrum is obtained in time window With power；

The transceiver is used for, and after the right to use for obtaining the channel, the first moment in the time window is opened Beginning sends the first signal on that channel；Wherein, first signal includes following at least one: control channel, data letter Road, reference signal；

The transceiver is also used to, and sends instruction message at the second moment；

Wherein, second moment is no earlier than the time window cut-off time；

Wherein, the instruction message includes that the device for sending signal sends first letter in the time window Number instruction.

In the first possible implementation of the third aspect, when the cut-off time of the time window is with described second There are time intervals between quarter.

In conjunction with the third aspect or the third aspect the first possible implementation, in second of possible implementation In, the time span of time span that the time window includes less than a subframe；Or the time window include when Between length be equal to a subframe time span.

In conjunction with the third aspect or the third aspect the first to second any one possible implementation, at the third In possible implementation, the time window includes each portion of time resource in continuous two subframes.

In conjunction with the third aspect or the third aspect first to the third any one possible implementation, at the 4th kind In possible implementation, second moment is located at the predetermined time of subframe.

In conjunction with the third aspect or first to fourth kind of the third aspect any one possible implementation, at the 5th kind In possible implementation, second moment includes the starting of next subframe of subframe where the time window cut-off time Moment；Or second moment includes N number of symbol pair that traces back before the end time of subframe where time window cut-off time At the time of answering, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

In conjunction with the third aspect or the third aspect first to the 5th kind of any one possible implementation, at the 6th kind In possible implementation, channel of the instruction message in authorization frequency spectrum；Or the instruction message is unauthorized The channel of frequency spectrum.

In conjunction with the third aspect or the third aspect first to the 6th kind of any one possible implementation, at the 7th kind In possible implementation, first signal includes one of control channel, data channel and reference signal or combines, described Instruction message indicates that first moment of the device for sending signal in the time window sends first signal； Or first signal includes reference signal, the instruction message indicates the device for sending signal in the time window It is interior to send first signal.

In conjunction with the third aspect or the third aspect first to the 7th kind of any one possible implementation, at the 8th kind In possible implementation, after the right to use for obtaining the channel, the transceiver in the time window first when It carves and starts to send the first signal on that channel to include: that the transceiver sends reference signal since first moment, Wherein, the time interval between first moment and the end time of first moment place subframe is less than threshold value；Or The transceiver sends one of control channel, data channel or combination since first moment, wherein when described first It carves and the time interval where first moment between the end time of subframe is not less than the threshold value.

In conjunction with any one in the 7th kind of possible implementation of the third aspect and the 8th kind of possible implementation Possible implementation, in the 9th kind of possible implementation, the reference signal is aperiodic reference signal, the non-week Phase reference signal is preconfigured or short notice in the running time-frequency resource of subframe；Or the reference signal is period ginseng Signal is examined, the running time-frequency resource of the period of the periodic reference signal and the periodic signal in subframe is preconfigured.

In conjunction with the third aspect or the third aspect first to the 9th kind of any one possible implementation, at the tenth kind In possible implementation, the instruction message further includes the time span and/or letter that the channel is used continuously in the base station The information of road switching.

Fourth aspect, the embodiment of the invention provides a kind of devices for receiving signal, including processor, transceiver and caching Device, in which:

The transceiver is used to receive the signal on unlicensed spectrum channel；

The buffer is used to cache the signal on the received unlicensed spectrum channel of the transceiver, wherein from time window It include the first signal that base station is sent, first signal in the first moment in mouthful, the reception and the signal cached Including one of control channel, data channel, reference signal or combination；

Second reception instruction message of the transceiver after the time window cut-off time；The wherein instruction Message carries the information in the signal for receiving and caching in the time window including first signal；

The processor is used to detect first signal according to the instruction message.

In the first possible implementation of the fourth aspect, when the cut-off time of the time window is with described second There are time intervals between quarter.

In conjunction with fourth aspect or fourth aspect the first possible implementation, in second of possible implementation In, the time span of time span that the time window includes less than a subframe；Or

The time span that the time window includes is equal to the time span of a subframe.

In conjunction with fourth aspect or fourth aspect the first to second any one possible implementation, at the third In possible implementation, the time window includes each portion of time resource in continuous two subframes.

In conjunction with fourth aspect or fourth aspect first to the third any one possible implementation, at the 4th kind In possible implementation, second moment includes the predefined moment.

In conjunction with fourth aspect or first to fourth kind of fourth aspect any one possible implementation, at the 5th kind In possible implementation, second moment includes the next subframe for including subframe where the time window cut-off time Initial time；Or second moment includes N number of symbol that traces back before the end time of subframe where time window cut-off time Number correspondence at the time of, wherein N number of symbol be not less than the instruction message occupy symbolic number.

In conjunction with fourth aspect or fourth aspect first to the 5th kind of any one possible implementation, at the 6th kind In possible implementation, channel of the instruction message in authorization frequency spectrum；Or the instruction message is described non- Authorize the channel of frequency spectrum.

In conjunction with fourth aspect or fourth aspect first to the 6th kind of any one possible implementation, at the 7th kind In possible implementation, the signal by transceiver reception, the buffer further includes, from the time window Signal of the cut-off time between at the time of detecting the instruction message.

In conjunction with fourth aspect or fourth aspect first to the 7th kind of any one possible implementation, at the 8th kind In possible implementation, it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of one signal, comprising:

First signal includes one of data channel, control channel or combination, and the instruction message is carried from described First moment of time window includes the letter of first signal in the signal for receiving and caching in the time window Breath.

In conjunction with the 8th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation, the processor According to the instruction message, first signal is detected, comprising:

The processor is used to determine first moment according to the instruction message；

The processor is also used to decode first signal according to first moment.

In conjunction with fourth aspect or fourth aspect first to the 7th kind of any one possible implementation, at the tenth kind In possible implementation, it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of one signal, comprising: first signal includes reference signal, and the instruction message carries the from the time window One moment included the information of first signal in the signal for receiving and caching in the time window；Or it is described First signal includes reference signal, and it includes described that the instruction message, which carries in the signal for receiving and caching in the time window, The information of first signal.

In conjunction with the tenth kind of possible implementation of fourth aspect, in a kind of the tenth possible implementation, the processing Device detects the reference signal according to the information at the first moment carried in the instruction message；Or the processor according to The instruction message detects the reference signal.

In conjunction with fourth aspect or fourth aspect first to the 7th kind of any one possible implementation, the 12nd In the possible implementation of kind, the instruction message was carried since the first moment of the time window, in the time window It include the information of first signal in the interior signal for receiving and caching of mouth；

The processor is used to determine that first signal includes reference signal, wherein described according to the instruction message Time interval where the first moment and first moment of instruction message instruction between the end time of subframe is less than threshold value； Perhaps the processor according to the instruction message determine first signal include one of data channel, control channel or Combination, wherein where first moment and first moment of the instruction message instruction between the end time of subframe Time interval be not less than the threshold value.

In conjunction with fourth aspect or fourth aspect first, into the 7th kind and the tenth to the tenth one kind, any one may Implementation, in the 13rd kind of possible implementation, the reference signal be aperiodic reference signal, it is described aperiodic Running time-frequency resource of the reference signal in subframe is preconfigured or short notice；Or the reference signal is cycle reference Signal, the running time-frequency resource of the period of the periodic reference signal and the periodic reference signal in subframe is to be pre-configured with 's.

In conjunction with first to the 13rd kind of any one possible implementation of fourth aspect or fourth aspect, the tenth In four kinds of possible implementations, the instruction message further include the channel continuously receive signal time span and/or The information of channel switching.

The method provided according to embodiments of the present invention, base station can use up after obtaining the right to use of channel of unlicensed spectrum It is fast to send the first signal for including but is not limited to one of control channel, data channel, reference signal or combining, avoid transmission The wasting of resources caused by filling signal, to improve the utilization rate of resource；User terminal is hardly increasing according to instruction message It, can be correctly demodulated or decoded to received signal under the premise of adding computational complexity.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to required in the prior art or embodiment Attached drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

Fig. 1 shows a kind of time diagram for the method for sending signal in the prior art；

Fig. 2 shows a kind of method flow diagrams of transmission signal of proposition according to embodiments of the present invention；

Fig. 3 shows a kind of time window proposed according to embodiments of the present invention and divides time diagram；

Fig. 4 shows a kind of time window proposed according to embodiments of the present invention and divides time diagram；

Fig. 5 shows a kind of time window proposed according to embodiments of the present invention and divides time diagram；

Fig. 6 shows a kind of time window proposed according to embodiments of the present invention and divides time diagram；

Fig. 7 shows a kind of time diagram of the transmission signal proposed according to embodiments of the present invention；

Fig. 8 shows a kind of time diagram of the transmission signal proposed according to embodiments of the present invention；

Fig. 9 shows a kind of time diagram of the transmission signal proposed according to embodiments of the present invention；

Figure 10 shows a kind of method flow diagram of the transmission signal proposed according to embodiments of the present invention；

Figure 11 shows a kind of method flow diagram of the reception signal proposed according to embodiments of the present invention；

Figure 12 shows a kind of method flow diagram of the communication proposed according to embodiments of the present invention；

Figure 13 shows a kind of apparatus structure schematic diagram of the transmission signal proposed according to embodiments of the present invention；

Figure 14 shows a kind of apparatus structure schematic diagram of the reception signal proposed according to embodiments of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, carries out to the technical solution of the embodiment of the present invention clear, complete Ground description, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on the present invention In the embodiment, those skilled in the art's every other implementation obtained without making creative work Example, all should belong to the scope of protection of the invention.

Long term evolution (English Long Term Evolution, abridge LTE) system is based on orthogonal frequency division multiplexing multiple access (English Text: Orthogonal Frequency Division Multiplexing Access, abridge OFDMA) technology, running time-frequency resource The OFDM subcarrier in OFDM symbol and frequency domain dimension being divided into time-domain dimension, and the smallest resource granularity is called One resource units (English Resource Element, abridge RE), i.e. an OFDM symbol and frequency in expression time-domain The time-frequency lattice point of an OFDM subcarrier on domain.

The transmission of business is dispatched based on base station in LTE system, and the basic time unit of scheduling is a subframe, time Length is generally 1 millisecond.For normal cyclic prefix situation, a subframe includes 14 OFDM symbols；Before Extended Cyclic Sew situation, a subframe includes 12 OFDM symbols.

Have fixed frame structure in LTE system, and the boundary of frame or sub-frame boundary be in time it is fixed, change sentence It talks about, at the time of the frame boundaries or sub-frame boundary of LTE system are corresponding in time determining.Frame or sub-frame boundary include frame or The initial time and end time of subframe, in general, the boundary of frame or subframe are both the end time of a subframe, and The initial time of next subframe.The mode of this fixed frame boundaries or sub-frame boundary have the advantages that receiving end with Transmitting terminal synchronization complexity reduces；Neighboring community can do interference coordination by time synchronization, be particularly with time division multiplexing When uniting particularly important: carrying out unauthorized carrier wave and authorizing the carrier wave polymerization of carrier wave, it is ensured that unauthorized carrier wave and authorization carrier wave Time synchronization, guarantee uplink feedback channel can authorization carrier wave on send, reduce the forward delay interval of feedback channel.

In general, in LTE system resource scheduling flow the following steps are included: base station send control channel, the control Channel processed can carry scheduling information, which includes such as resource allocation information, the control information such as adjustment coding mode； After user equipment (English: User Equipment, abbreviation: UE) and base station Time and Frequency Synchronization, according to sub-frame boundary, i.e., in every height The above-mentioned control channel of frame onset detection, and lower line number is carried out according to the scheduling information carried in the control channel detected It is believed that the reception in road or the transmission of uplink data channels.

The frequency spectrum disposed in existing LTE system is all authorization frequency spectrum, i.e., may only be purchased the fortune of the authorization frequency spectrum Seek quotient's Web vector graphic.Since authorization frequency spectrum resource is in short supply, at high price, as long as but unlicensed spectrum does not need payment, expires simultaneously The certain rule of foot can be used, therefore people increasingly improve the degree of concern of unlicensed spectrum.It is deployed in unlicensed spectrum LTE system is referred to as U-LTE system.

In view of the U-LTE system of more operators, and with other using unlicensed spectrum wireless communication system it Between the demand coexisted, U-LTE system design when need consider apply the rules of competition；Due to the communication equipment of U-LTE system When competing unlicensed spectrum resource, competition object not only includes other U- equally with predictable sub-frame boundary The communication equipment of LTE system further includes setting by other communications with random access ability of representative of Wi-Fi communication equipment It is standby.Since some communication equipments can send afterwards (English Listen-Before-Talk, abridge LBT) based on being similar to first to detect Method occupies the wireless channel of unlicensed spectrum at the time of random, then also needing for the communication equipment of U-LTE system There is the ability that unlicensed spectrum channel is occupied at the time of random.

Fig. 1 shows a kind of timing diagram of the communication equipment competition unlicensed spectrum resource of U-LTE system.T in figure₁When Carve be specially channel by it is busy be transferred to the free time at the time of, a kind of possible situation is that the communication equipment of Wi-Fi system is in t₁Moment It completes the transmission of signal and discharges the channel；The communication equipment of the U-LTE system is in t₂Moment passes through reasonably competition side Formula, confirmation obtain the right to use of the channel, in general, t₂Moment will not be with the sub-frame boundary t of the U-LTE system₃When Alignment is carved, therefore, in order to prevent in t₂To t₃Channel described in period is occupied by other communication equipments, the communication of the U-LTE system Equipment can be from t₂Moment starts to send filling signal, until t₃Moment retransmits useful signal.It will be apparent that this mode will cause Send the waste of resource.

Trace sth. to its source it can be found that U-LTE system communication equipment obtain unlicensed spectrum channel the right to use after, The reason of useful signal including control channel, data channel or reference signal cannot be sent immediately, is that the communication is set Be at the time of the right to use of the standby channel for obtaining unlicensed spectrum it is random, tend not to be aligned with its sub-frame boundary；If directly Send it is described include control channel, data channel or reference signal useful signal, then corresponding communication equipment when receiving, The initial time of useful signal in channel receiving signal can not be known in the case where no prior information, therefore is also just difficult to correctly It is decoded；On the other hand, it is contemplated that calculating of the complexity and communication equipment of U-LTE System Data Format when receiving is multiple Miscellaneous degree, blind Detecting are also not a feasible scheme.

In summary, waste of the communication equipment of U-LTE system when using unlicensed spectrum resource is obtained is existing skill Art there are the problem of；So the present invention is directed to propose a kind of method, apparatus and system for sending or receiving signal, to work as It is efficient to use the unlicensed spectrum resource obtained under preceding unlicensed spectrum application environment.

Technical solution of the present invention is explained in detail below with reference to specific embodiment.It is worth noting that, The base station mentioned in each embodiment of the invention includes but is not limited to the base station for supporting unlicensed spectrum, macro base station, micro- base It stands, femto base station；It includes but is not limited to the end for indicating unlicensed spectrum that user equipment is mentioned in each the present embodiment of the invention End equipment.

Further, it although the sending device of the execution sending method in the embodiment of the present invention is considered base station, holds The receiving device of row method of reseptance is user terminal, but in the specific implementation process, it executes specific transmission or receives Communication device may be all base station or be all user terminal: for example between the user equipment in car networking field, according to this The method that inventive embodiments propose is communicated by implementing on the channel of unlicensed spectrum.Similar scene should also be as falling into this hair Within bright protection scope.

Embodiment 1

The embodiment of the present invention proposes a kind of method for sending signal, and the base station of U-LTE system is obtaining unlicensed spectrum Channel the right to use after the first moment send the first signal；Second moment hair of the base station after first moment Instruction message is sent, wherein the instruction message includes the instruction that the base station sends first signal；Wherein, first letter Number consistent with the concept of the useful signal of background technology part, first signal includes but is not limited to control channel, data letter One of road or reference signal or combination.

The method provided through the embodiment of the present invention, the base station can after obtaining the right to use of channel of unlicensed spectrum To send first signal of including but not limited to one of control channel, data channel, reference signal or combination as early as possible, avoid The wasting of resources caused by filling signal is sent, to improve the utilization rate of resource；User terminal is according to instruction message simultaneously, It, can be correctly demodulated or decoded to received signal under the premise of hardly increasing computational complexity.

Fig. 2 shows the embodiment of the present invention propose transmission signal method, method the following steps are included:

Step 201, the base station of U-LTE system obtains the right to use of the channel in unlicensed spectrum in time window；

Step 202, after the right to use for obtaining the channel, the first moment in the time window is opened for the base station Beginning sends the first signal on that channel；

Step 203, the base station sends instruction message at the second moment；

Wherein, first signal includes following at least one: control channel, data channel, reference signal；

Wherein, second moment is no earlier than the cut-off time of the time window；

Wherein, the instruction message includes the instruction that the base station sends first signal in the time window； Alternatively, so that user equipment starts the institute sent to the first moment in the time window according to the instruction information The first signal is stated to be detected or decoded.

In the specific implementation process, the base station is the base station of U-LTE system, supports the channel for utilizing unlicensed spectrum Implement communication.The U-LTE system has fixed frame boundaries or sub-frame boundary, specifically, the U-LTE system it is every One frame or the initial time and/or end time of subframe all correspond to determining, the predictable moment.For example, a kind of U-LTE The subframe lengths of system are 1 millisecond, and the initial time of a subframe is overlapped with the end time of a upper subframe, then in time After some frame or sub-frame boundary has been determined, the past of U-LTE system and following frame or sub-frame boundary can be equally determined.

During specific implementation steps 201, the base station can be by different methods, or according to different Criterion to obtain the right to use of the channel of unlicensed spectrum, for example, the base station reference LBT principle, using clear channel assessment (CCA) Method the right to use of the channel is competed on the channel of unlicensed spectrum.Wherein, the so-called channel right to use includes the base It stands and sends the power of signal on that channel.

During specific implementation steps 201, step 202 or step 203, the corresponding subframe of time window or A period of time length determined in multiple subframes, in other words, the initial time and end time of time window are for subframe It is relatively-stationary for boundary.Optionally, which can be continuous a period of time resource, such as continuous several OFDM symbol；Or it is also possible to discrete several sections of time resources, every section includes continuous several OFDM symbols.Time window Concrete form can be predefined, can also be configured by base station.

Fig. 3, Fig. 4, Fig. 5 and Fig. 6 respectively show a kind of setting method of optional time window:

Optionally, time span of the time span of the time window covering less than a subframe.Such as such as Fig. 3 institute Show, include n symbol in a subframe, each symbol sequence occupies a period of time, and wherein n is the integer greater than 1.Such as Fig. 3 institute Show, since sub-frame boundary by each symbol serial number be s₁、s₂……s_n, then time window 1 or time window 2 or The corresponding time range of time window 3 is as shown in dotted line frame in Fig. 3, including s₁、s₂……s_k, wherein k is just whole no more than n Number.

Optionally, the time span of the time window covering is equal to the time span of a subframe.Such as such as Fig. 4 institute Show, include n symbol in a subframe, each symbol sequence occupies a period of time, and wherein n is the integer greater than 1.Such as Fig. 4 institute Show, since sub-frame boundary by each symbol serial number be s₁、s₂……s_n, then time window 1 or time window 2 are corresponding Time range as shown in dotted line frame in Fig. 4, including s₁、s₂……s_n。

Optionally, the time span of the time window covering is greater than the time span of a subframe.Such as such as Fig. 5 and figure It include n symbol in a subframe shown in 6, each symbol sequence occupies a period of time, and wherein n is the integer greater than 1, from son Frame boundaries start each symbol serial number to be s₁、s₂……s_n.The symbol quantity that the time window includes can be more than n A symbol, i.e. a time window cover the time span more than a subframe, such as shown in figure 5, time window 1 is corresponding Time range as shown in dotted line frame in Fig. 5, the s including the first subframe₁……s_nAnd second subframe s₁……s_k, wherein Second subframe is the next subframe adjacent with the first subframe；The corresponding time range of time window 2 includes the second subframe s₁……s_nAnd the s of third subframe₁……s_k, wherein third subframe is the next subframe adjacent with the second subframe, wherein k For positive integer.In another example as shown in fig. 6, the corresponding time range of time window 1 as shown in dotted line frame in Fig. 6, including first son The s of frame_k……s_nAnd second subframe s₁……s_m, wherein the second subframe is the next subframe adjacent with the first subframe；When Between the corresponding time range of window 2 include the second subframe s_k……s_nAnd the s of third subframe₁……s_m, wherein third subframe For the next subframe adjacent with the second subframe, wherein k and m is positive integer.It is only enumerated 4 kinds of optional time windows above Time mode, in the specific implementation process, different length, right can be arranged according to specific demand in those skilled in the art Answer the time window of subframe different piece, the present invention to the specific set-up mode of time window without limitation.

In the specific implementation process, since subframe periodically occurs in time, time window may also Periodically occur.By taking the time window timing diagram shown in Fig. 3 as an example, the corresponding time window of each subframe, accordingly Multiple subframes correspond to multiple time windows.

In the specific implementation process, optionally, the time window includes each portion of time in continuous two subframes Resource.It such as include respective a part of symbol in two adjacent subframes in a time window as shown in Figure 5 and Figure 6.Tool For body, subframe where the initial time of time window can not with the subframe where the cut-off time of the time window It is a subframe, the time span that the time window includes can be less than, equal to or more than the time span of a subframe.

It in the specific implementation process, optionally, include the time of overlapping covering between adjacent time window.Such as such as Shown in Fig. 5 and Fig. 6, with the time of Chong Die covering between time window 1 and time window 2.In the specific implementation process, right In the time of same section of overlapping covering, the time of the overlapping covering can serve to indicate that including at least two instruction messages, because This can increase the flexibility of scheduling.That is, if base station is sent out within the overlapping cover time that at least two time window is formed The first signal is sent, then at least can be to indicate, to increase the flexibility of scheduling there are two instruction message.

During specific implementation steps 202, the base station determines in time window and obtains in unlicensed spectrum The channel right to use after, since the first moment send the first signal.Wherein, first moment is not later than the base station and obtains The initial time of next symbol at the time of the right to use of the channel.The embodiment of the present invention obtains unlicensed spectrum to determining On the channel right to use at the time of, send the first signal the first moment between time relationship, including two kinds of extreme feelings Condition: specifically, on the one hand, it will be recognized by those skilled in the art that base station is when determining the right to use for obtaining the channel, i.e., Make to send the first signal immediately, due to the base station can be consumed in scheduling process the regular hour, such as process instruction when Between, also resulting in first moment for starting to send the first signal is bound to lag behind the right to use for determining and obtaining the channel At the time of.It in this case, is super at the time of the right to use for obtaining the channel in unlicensed spectrum is determined in time window It is preceding in first moment；That is, under the premise of ignoring the processing time, it is also assumed that the two moment are same Moment, i.e., the described base station were the first moment at the time of determining the channel right to use in acquisition unlicensed spectrum in time window, And the first signal is sent since first moment.

On the other hand, it is not overlapped with the initial time of subframe internal symbol at the time of obtaining the right to use if base station determines When, the base station can choose the initial time of next symbol at the time of obtaining the right to use as the first moment, and The first signal is sent since the first moment.Time between at the time of first moment and the acquisition right to use In interval, optionally, the base station sends filling signal, to prevent the channel from being seized by other communication equipments；Optionally, institute It states base station and does not send signal, this method is conducive to save power consumption, and the time span for allowing also for a symbol is smaller, A possibility that channel is seized by other communication equipments in one lesser period is lower.

During specific implementation steps 202, the selection at first moment can be above-mentioned two extremum, It can be any time that two above extremum delimited in section.Optionally, first moment is specially the time window The initial time of interior symbol.In the specific implementation process, the base station obtains the letter of unlicensed spectrum in time window At the time of the right to use in road, may be overlapped with the initial time of symbol any in time window, but for the ease of when Between it is upper consistent with existing symbol, be also easy for decoding or detection of the user terminal to reception signal, the base station can be selected The initial time of the symbol in the time window is selected as the first moment；Preferably, described base station selected in the time In window, at the time of distance obtains the right to use after immediate symbol initial time, as the first moment, this is into one The utilization rate for improving resource of step.As for first moment and it is described obtain the right to use at the time of between time In interval, optionally, the base station sends filling signal, to prevent the channel from being seized by other communication equipments；Optionally, institute It states base station and does not send signal, this method is conducive to save power consumption, and the time span for allowing also for a symbol is smaller, A possibility that channel is seized by other communication equipments in one lesser period is lower.

During specific implementation steps 202, first signal and filling signal in the prior art area Not, specifically, the first signal mentioned in the embodiment of the present invention also carries letter other than having the function of occupying channel Breath.For example, first signal includes but is not limited to one of control channel, data channel or reference signal or combination.

During specific implementation steps 202, optionally, the base station sends reference since first moment Signal, wherein the time interval where first moment and first moment between the end time of subframe is less than threshold value； Or the base station sends control channel and/or data channel since first moment, wherein first moment and institute Time span where stating for the first moment between the end time of subframe is not less than the threshold value.Specifically, the threshold value can To be symbolic number, such as setting threshold value is 6 symbols, then when the time terminated between boundary at the first moment and locating subframe Less than 6 symbol duration length are spaced, then the first signal is specially reference signal；Conversely, then the first signal is specially One of data channel or control channel or combination.

During specific implementation steps 203, second moment of the base station after the first moment sends instruction and disappears Breath, the instruction message include the instruction that the base station sends the first signal；In the specific implementation process, with the base station into The user equipment of the U-LTE system of row communication can be according to the instruction message, to receiving in advance and the signal cached is examined It surveys.Instruction message allow user equipment hardly increase computational complexity under the premise of the first signal is decoded or Person's detection avoids the promotion for introducing blind Detecting bring computational complexity or power consumption.The present embodiment of the present invention and other In embodiment, detection includes the detection to reference signal, is surveyed with executing such as channel estimation, Time and Frequency Synchronization, wireless resource management The tasks such as amount；Detection also includes the decoding to data channel or control channel.

In the specific implementation process, the instruction message in step 203 corresponds to the time in step 201 and step 202 Window.For another angle, time window is the corresponding time range of the instruction message；Time window includes referring to Show the time range that message can indicate.For example, including 8 symbols in time window, then instruction message can be 3 bits Specifically to indicate which of above-mentioned 8 symbols symbol is above-mentioned first moment.

In the specific implementation process, second moment is no earlier than the cut-off time of the time window.That is, base station is sent out It send the second moment of the instruction message Chong Die with the cut-off time of time window, or lags behind cutting for corresponding time window The only moment.It is worth noting that, with reference to Fig. 3 to Fig. 6 it is found that time window and instruction message periodically occur, Er Qieshi Between there is corresponding relationship between window and instruction message, therefore base station send the instruction message the second moment be no earlier than it is described Time between the cut-off time of time window, in particular to the second moment of time window instruction message corresponding with transmission closes System.

In the specific implementation process, optionally, at the time of second moment is default, user equipment can be default The second reception to instruction message, thus further reduce user terminal operand or power consumption.Optionally, described At the time of second moment was that base station is allocated to user equipment.

In the specific implementation process, optionally, where the cut-off time that second moment includes the time window The initial time of next subframe of subframe, i.e., the described instruction message be located at the subframe where the cut-off time of the time window it The initial position of subframe afterwards.Specifically, if the cut-off time of the time window be overlapped with the cut-off time of subframe, then institute Stating for the second moment can be overlapped with the cut-off time, and second moment can also be located at the cut-off time at a distance of one At the time of subframe time length.Optionally, second moment includes the cut-off of subframe where the time window cut-off time At the time of N number of symbol that traced back before moment corresponds to, wherein N number of symbol is not less than the symbolic number that the instruction message occupies, preferably , instruction message occupies last N number of symbol of the subframe where the cut-off time of the time window, and N can be 1,2 or 3.It can Choosing, when second moment can be default with one or more of subframe where time window cut-off time described in position It carves, such as the starting point of one or more symbols, can know the position at above-mentioned first moment as early as possible in this way.Specifically, such as sending out Send the first moment of the first signal for the third symbol of certain subframe, then the second moment for sending the instruction message can be to be somebody's turn to do 5th symbol of subframe, is carved with preset binding relationship when the second moment of the instruction message can be with first at this time, such as Second moment and two symbols of the first time at intervals, at this time if user equipment receives the instruction message, for example the instruction disappears Breath is certain known array, then user equipment is assured that the position of two symbols in front was the first moment.As it can be seen that at this time It is a symbol that above-mentioned time window, which just retracts, is specifically indicated by the instruction message sent below, which can be Sequence or the indication bit etc. being carried in control channel.

During specific implementation step 203, optionally, the instruction message is passed on the channel of authorization frequency spectrum It is defeated.In the specific implementation process, the scheduling due to the channel resource of authorization frequency spectrum by base station, in general authorizes frequency spectrum Channel quality is preferable, is conducive to reliably transmit signal, so the channel instruction message in the authorization frequency spectrum is advantageous In the quality for guaranteeing instruction message；Optionally, the instruction message is transmitted on the channel of unlicensed spectrum.

During specific implementation step 203, optionally, first signal include control channel, data channel it One or combination, the instruction message indicate that the base station sends the first signal at first moment；Corresponding user terminal Buffered in advance signal determined for the first moment further according to the instruction message, and then the is determined in the signal of the buffered in advance The starting sending instant of one signal detects the control cached according to the starting sending instant in order to which user equipment is subsequent Channel and/or data channel.It for example, include 8 time quantums in time window, each time quantum corresponds to a symbol Number occupied time；Instruction message includes 3 bits, and 3 bits can be to distinguish the base station in 8 time lists Any time unit in member starts to send the first signal.

During specific implementation step 203, optionally, first signal includes reference signal, and the instruction disappears Breath indicates that the base station sends the first signal at first moment, and corresponding user terminal is according to the instruction message, slow The starting sending instant that reference signal is determined in the signal deposited, is examined in order to which user equipment is subsequent according to the starting sending instant The reference signal cached is surveyed, and such as channel estimation, Time and Frequency Synchronization, wireless resource management are executed according to the reference signal The tasks such as measurement.

During specific implementation step 203, optionally, first signal includes reference signal, and the instruction disappears Breath indicates that the base station sends first signal in the time window.Corresponding user terminal disappears according to the instruction Breath determines that there are reference signals in the signal of caching, and detects reference signal in the signal of the caching, and according to ginseng It examines signal and executes the task such as channel estimation, Time and Frequency Synchronization, wireless resource management measurement.

Optionally, control channel and the corresponding time window of data channel time window corresponding with reference signal can be It is independent, i.e., both can it is completely overlapped, partly overlap or even be not overlapped.For the time window of control channel and data channel It may include the top n symbol an of subframe, for example N is 5,6 or 7；It and may include one for the time window of reference signal Rear N number of symbol of a subframe, such as N are 5,6 or 7.Specifically, by taking control channel is PDCCH as an example, reference signal CSI-RS For, it is assumed that instruction information is sent in subframe 2 to indicate the primary sign of PDCCH and CSI-RS in subframe 1, then PDCCH institute Corresponding indicating range (i.e. the corresponding time window of control channel) is first symbol of subframe 1 to the 5th symbol；CSI- Indicating range corresponding to RS (i.e. the corresponding time window of reference signal) is the 6th of subframe 1 the, 7 symbols and the 9th, 10,12 and 13 symbols；It can be seen that two time windows are not overlapped, and reference signal is since the running time-frequency resource in a subframe is pre- If, therefore the symbol that the corresponding time window of reference signal includes can be discontinuous.Other situations, for example partly overlap etc. all It is similar.

Optionally, the reference signal is the reference signal of periodicity sending, which can be for for channel survey The non-zero power CSI-RS of amount and/or for the zero energy CSI-RS, CRS of interference measurement or other periodic reference signals etc., The running time-frequency resource of the period of the reference signal and the reference signal in subframe is preconfigured；The instruction message It is used to indicate user equipment and machine testing or does not detect the reference signal in periodically certain transmission.Specifically, being awarded in view of non- The channel right to use of power frequency spectrum needs base station to be at war with according to certain rule to seize, therefore base station cannot be guaranteed each pre- If opportunity of the transmission reference signal may have the channel right to use, if user equipment is according further to each preset value The corresponding signal of running time-frequency resource do measurement, it is synchronous, channel estimation etc. can due to reference signal there is no lead to error.Solution Certainly method is, user equipment determines whether the corresponding signal of corresponding running time-frequency resource includes the reference according to the instruction message Signal, if the information for not receiving the instruction message or instruction message indicates that the base station is provided in corresponding predetermined time-frequency The not sent reference signal in source position, then it is assumed that receive and do not include reference signal in the signal that caches, conversely, if user sets The standby instruction message or the instruction message instruction base station of receiving is sent in corresponding predetermined running time-frequency resource position The reference signal, then user equipment executes such as channel estimation, Time and Frequency Synchronization, radio resource according to the signal for receiving and caching The tasks such as management measurement.Again optional, user equipment abandons the reference signal on the secondary transmission opportunity according to the instruction message It uses, if that is, user equipment does not receive the instruction message, the use of the reference signal with regard to this time send opportunity.In this way It can guarantee corresponding with the practical transmission of the reference signal using reference signal, be not in using error.

Optionally, the reference signal is the reference signal of aperiodic transmission, and the aperiodic reference signal is in subframe Running time-frequency resource be preconfigured or short notice.Specifically, the channel right to use in view of unlicensed spectrum needs Base station is at war with according to certain rule and seizes, therefore base station cannot be guaranteed in each preset transmission reference signal Opportunity may have the channel right to use, if user equipment is gone according further to the corresponding signal of running time-frequency resource of each preset value It measures, synchronous, channel estimation etc. can cause to generate error due to being not present for reference signal, in the specific implementation process, The transmission of aperiodic reference signal can be indicated by instruction message, the running time-frequency resource of the aperiodic reference signal, which can be, to be faced When distribute, be also possible to pre-configured, or can also be some time domains are done based on above-mentioned periodic reference signal On delay, and the running time-frequency resource in a subframe is identical as preconfigured periodic reference signal, or interim triggering The reference signal can temporarily send one or more subframes.The program can be with the scheme of above-mentioned periodic reference signal simultaneously It exercises and uses.

Optionally, the transmission of above-mentioned control channel and/or data channel is needed to aperiodic indicated by the instruction message Reference signal carries out rate-matched.Specifically, in view of whether base station robs the user equipment for accounting for channel for being in activated state It is public information, the user equipment of the activated state can be understood as being in activated state on the unauthorized carrier wave of the user equipment, that The instruction message sent is multicast or broadcast, for example the instruction message is carried on to one group or all activated state user sets In standby visible control channel, which can be scrambled with public scrambling code.So, indicated by the instruction message The running time-frequency resource of aperiodic reference signal be all for one group of user equipment or all activated state user equipment it is known, at this time such as Some activated state user equipment of fruit also needs to receive the control channel and/or data channel of unicast, then needs to get around by above-mentioned The running time-frequency resource of reference signal indicated by instruction message.

During specific implementation step 203, optionally, between the cut-off time of time window and second moment There are time intervals.The time interval can be preset, is also possible to base station and is allocated to user equipment.Optionally, described Time interval is to meet base station since determination gets the channel right to use to the control letter generated comprising the instruction message Time needed for road: consider that the occupancy of unlicensed spectrum upper signal channel resource is based on instant letter in the specific implementation process The evaluation and test of road free time, i.e., it can not determine the channel right to use before this in advance, it is assumed that when the base station is by the cut-off of the time window It carves and starts to send the first signal as the first moment, i.e., the described base station just robs the right to use for accounting for channel in the cut-off time, that The base station just can determine that information entrained by instruction message in the cut-off time of the time window, such as base station sends the One signal it is specific at the time of or base station whether have sent the first signal, so that the content of instruction message is influenced, this In the case of, it may include a time interval between the cut-off time of time window and the second moment for sending instruction message, with Meet base station and forms the time that the instruction message needs to consume.

Optionally, the time interval includes the symbol of subframe rearward.That is, the time window occupies a son Several symbols before frame, i.e., several symbols are not within time window and as the time interval behind the subframe, such as Symbol s in Fig. 3_k+1……s_n.Optionally, in the specific implementation process, even if base station obtains in the time interval The right to use of the channel of unlicensed spectrum, since symbolic number available in subframe is very few, if the base station is in the time The signal for being mapped with data channel or control channel is sent in interval, then money consumed by actually corresponding instruction message Source is likely larger than the resource that the base station utilizes in the time interval.Optionally, by the subframe with it is next subframe integrated It is scheduled with a control channel.

Optionally, above-mentioned first signal can be carried in the time interval, i.e. the first signal can be in above-mentioned time window Except, but the starting sending instant of first signal is in above-mentioned time window.By taking Fig. 3 as an example, it is assumed that use in the first subframe Family equipment scheduling data channel, then the data channel can since the first moment to cut-off time of first subframe, but when Between between the cut-off time of window and the cut-off time of the first subframe there are time interval, therefore a part of the first signal can be with Not in above-mentioned time window.For Fig. 4, the first signal all in time window.

Optionally, before the right to use that base station obtains unlicensed spectrum upper signal channel, base station is determined to be distributed to user equipment Resource block pair quantity and modulation coding scheme, the quantity and modulation coding scheme of the resource block pair to user for setting The standby transport block size (i.e. the original bit number of data packet) for being indicated to user device transmissions；Base station is according to the modulating-coding side Formula and the quantity of the resource block pair of the distribution generate the default modulation symbol set after coded modulation；The resource block is to being pre- If resource block pair, the default resource block to including preset symbol quantity in time domain, such as 14 symbolic numbers or other such as 10 A symbolic number；After the right to use of channel is got in base station, according to the available symbol quantity of current subframe (for example being 11) and described Modulation symbol set is preset to determine actual modulated assemble of symbol, and sends the reality in available symbol in current subframe Modulation symbol set.Specifically, base station needs a period of time length in advance to do the scheduling decision and framing of subframe n.Such as base station Need to send the data packet for dispatching the user equipment to user equipment in subframe n, need in advance about 1 half subframe adjusted The determination of information, such as modulation coding scheme are spent, distribution information of resource block pair etc., then half of subframe is pending to generate in advance The modulation symbol set sent, i.e. framing or framing.In general, this modulation symbol collection credit union according to the stock number of subframe n (such as Available symbols number) it determines, the available symbols number is known in advance in existing system, is generally exactly that complete subframe includes 14 symbols.But for U-LTE system, data packet can be sent in the non-primary sign of a subframe, and before base station without Method predicts the available symbolic number of the subframe, then base station need to predefine preset stock number (such as in 1 subframe 14 symbol Number or 10 symbols) come, then according to the preset stock number, in conjunction with the quantity and modulation coding scheme of the resource block pair of distribution And preset modulation symbol set is generated after carrying out coded modulation, it is assumed here that base station generates this according to a complete subframe The modulation symbol set of pre-configuration；Then, base station obtains the 4th symbol that the first moment of the channel right to use is certain subframe, that Base station is needed according to the available stock number of current subframe (such as currently available symbolic number be 11) come from above-mentioned preset The actual modulated assemble of symbol that a part is sent as needs is selected in modulation symbol set.If preset modulation symbol collection Conjunction is generated according to 10 symbols, just the modulation symbol set according to the pre-configuration is needed to need to send out to extend generation at this time The actual modulated assemble of symbol (assuming that 11 symbols can be used) sent, for example rate is carried out to above-mentioned preset modulation symbol set The actual modulated assemble of symbol that the stock number for reaching actually available with (for example repetition) determines.The embodiment is equally applicable to join The transmission of signal is examined, i.e., the reference signal of default modulation symbol set is first determined, then according to the available symbolic number of current subframe It measures or can be used for sending the symbol quantity of the reference signal and sent to intercept a part from the default modulation symbol set.

For above-mentioned forward scheduling and group frame problem, can also be done by the way of not needing according to default stock number. Optionally, the top n subframe of channel, such as N=1 are accounted for for robbing, then first subframe is just according to complete 14 symbols Normal sub-frames duration dispatch, the scheduling of such first subframe can not follow the normal sub-frame boundary of the carrier wave；From N+1 Subframe starts, and is restored to normal sub-frame boundary to dispatch, i.e. the N+1 subframe is scheduling to part subframe duration only to send To the boundary of next subframe, next N+2 subframe is just dispatched according to normal sub-frame boundary later.It can evade in this way Forward scheduling and framing based on stock number with seize the unmatched problem of the available stock number of current subframe after channel.Specifically , it is assumed that base station is robbed in the 4th symbol of subframe 0 and accounts for channel, it can sends information to user from the 4th symbol and sets Standby, the available symbolic number of the subframe is 11 at this time.If it is assumed that N=1, then the scheduling of current subframe 0 can extend to son In frame 1, i.e. when a length of 14 symbols of the scheduling of the 4th sign-on of holding subframe 0 extend to the 3rd symbol in subframe 1 Number.Then, the cut-off boundary of subframe 1 can only be just sent to from the scheduling of the 4th sign-on of subframe 1, i.e., from subframe 1 The scheduling of 4 sign-ons can only send 11 symbols.Then, the scheduling that subframe 2 starts is exactly the scheduling of normal sub-frames duration. It is this keep top n subframe scheduling cross over sub-frame boundary, can make base station accomplish forward scheduling and framing based on resource The available stock number of current subframe after measuring and seizing channel matches.

Optionally, the instruction message further includes the time span and/or channel that the channel is used continuously in the base station The information of switching.Specifically, base station can be used continuously on the time after certain right to use for obtaining the channel of unlicensed spectrum Have maximum time length limitation, such as 10 subframes, i.e., actual use length be by the maximum time length limitation, or Actual use length is also less than the maximum time length, for example only continuously occupies 6 subframes based on current loading condition, And this time span is after getting channel every time for can be different, therefore the base station needs to notify to user equipment, For example it is placed in down control channel；In view of above-mentioned first moment can be the non-initial position of a subframe, then in order to Meet above-mentioned maximum time length limitation, the last one subframe this time continuously occupied may be also to occupy a part of symbol, tool What the how many a symbols of body can be occupied to user equipment or user equipment according to above-mentioned first moment and actually with dynamic notification Subframe limits to calculate, such as 6 subframes of continuous occupancy of this dynamic notification, and the first moment was from the of first subframe 3 sign-ons, then user equipment, which oneself can be calculated in last 6th subframe, can only occupy preceding 9 symbols.It can Choosing, the instruction message can with bearing carrier wave indication message, because of the broader bandwidth of unlicensed spectrum, such as 100 More megahertzs, therefore multiple carrier waves can be divided into, and channel can be seized parallel on each carrier wave, such as according to difference The rules such as payload size and current channel idle assessment on carrier wave, therefore dynamic carrier wave selection can be introduced to improve Channel occupancy probabilities then just needing dynamically to notify base station selected carrier wave to user equipment, for example are controlled using downlink The method of channel notification.To sum up, it is contemplated that strong correlation and similar timeliness between above-mentioned control information, the finger Show that message can also include above-mentioned control information, so as to save control channel expense.The embodiment can also be with above-mentioned The embodiment of periodic reference signal combines, specifically, UE can determine this busy channel of base station according to the instruction message Duration, if the periodic reference signal of above-mentioned pre-configuration, in the duration, UE can utilize the reference in the duration Signal is synchronized and/or is measured；Refer to if the periodic reference signal or UE that are not pre-configured in the duration do not receive this Show message, then UE assumes that the periodic reference signal of above-mentioned pre-configuration is not present, i.e., does not utilize it to synchronize and/or measure.This Sample can guarantee the accuracy of the accuracy that UE is measured using reference signal, especially interference measurement, because of interference measurement Just measure accurately in the case where busy channel in base station, eliminate at this time other proximal ends interference node interference flutterred grasp it is dry It disturbs in measurement, and what the interference of these proximal ends may be not present in normal data dispatch due to the use of LBT mechanism, it is such dry Measurement is disturbed just with matching when real data scheduling.

The method proposed according to embodiments of the present invention, the base station can after obtaining the right to use of channel of unlicensed spectrum To send first signal of including but not limited to one of control channel, data channel, reference signal or combination as early as possible, avoid The wasting of resources caused by filling signal is sent, to improve the utilization rate of resource；User terminal is according to instruction message simultaneously, It, can be correctly demodulated or decoded to received signal under the premise of hardly increasing computational complexity.

Embodiment 2

For a clearer understanding of the present invention, the embodiment of the present invention is on the basis of embodiment 1 it is further proposed that a kind of hair The method for the number of delivering letters.The time diagram of combination of the embodiment of the present invention Fig. 7, Fig. 8 and Fig. 9 are to transmission signal proposed by the present invention Explanation is further explained in method.It is worth noting that, the method proposed by the present invention for sending signal includes but is not limited to Three kinds of situations shown in Fig. 7 to Fig. 9.

One subframe of the U-LTE system mentioned in the embodiment of the present invention includes 14 OFDM symbols.But the present invention is real Example is applied not to the chronomere's quantity for including in a subframe in the system of other concrete applications method proposed by the present invention, Specific such as symbol quantity, is defined.

Method provided in an embodiment of the present invention the following steps are included:

Step 1001, base station obtains the right to use of the channel of unlicensed spectrum in time window.For example, unlicensed spectrum Resource includes frequency spectrum money of the frequency in the frequency spectrum resource or 5.725GHz to 5.85GHz in 2.4GHz to 2.4835GHz Frequency spectrum resource near source or 60GHz, the embodiment of the present invention and other embodiments of the invention do not limit this specifically It is fixed, the division of unlicensed spectrum resource and determining every country or the regional policy of being subject to.

In the specific implementation process, the setting means of time window can there are many, including but not limited to as Fig. 3 to scheme Time window division methods shown in 9: it is optional, as shown in fig. 7, the initial time of time window is specially rising for a subframe Begin the moment, the cut-off time of time window is overlapped with the cut-off time of the 8th symbol of the subframe, i.e., includes in time window The time span of 8 symbols.

Optionally, as shown in figure 8, the initial time of time window is specially the initial time of a subframe, time window Cut-off time be overlapped with the cut-off time of the subframe, i.e., include the time span of 14 symbols in time window.

Optionally, as shown in figure 9, time window includes rear 8 symbols of the first subframe and preceding 8 symbols of the second subframe Number, wherein shown first subframe and second subframe are adjacent in time, and second subframe is specially under the first subframe One subframe, the initial time of time window are specially the initial time of the 7th symbol of first subframe, cut-off time tool Body is the cut-off time of the 8th symbol of second subframe.

During specific implementation steps 1001, the method for the right to use of the channel in base station acquisition unlicensed spectrum It can be through competition, the right to use that obtains after coordinating with other communication equipments can also be passed through.The present embodiment is specific to base station The method for how obtaining the right to use not further is limited.

In embodiments of the present invention, specifically, t of the base station in time window₁Moment, which determines, obtains unlicensed spectrum The right to use of channel, wherein t₁Moment is likely located in a symbol of subframe, i.e. t₁Moment both not startings with the symbol Moment is overlapped, and is not also overlapped with the cut-off time of the symbol, such as shown in Figure 7 and Figure 8；t₁Moment may also be with a certain symbol Number initial time be overlapped, such as shown in Figure 9.

Step 1002, first moment of the base station after the right to use for obtaining the channel, in the time window Start to send the first signal on that channel.Wherein, first signal includes following at least one: control channel, data Channel, reference signal；During specific implementation step 1002, optionally, when the base station sends the first of the first signal Carve the initial time that can not be subframe；When the base station sends the first signal and obtained for the first moment and be specially the starting of symbol It carves；The first moment that the base station sends the first signal is specially t₂Moment.

In the specific implementation process, first moment be not later than the base station obtain the channel the right to use when The initial time for the next symbol carved.

If t₁The initial time of moment non-symbol is overlapped, then the t₂Moment is specially the t₁Symbol where moment The initial time of following symbol.In the specific implementation process, optionally, the base station is in t₁Moment is to t₂Between moment when Between filling signal is sent in gap, with busy channel and prevent other communication equipments from occupying the channel；Optionally, the base station In t₁Moment is to t₂Channel is not sent in time slot between moment；The base station is in t₁Moment is to t₂Time between moment Short reference signal is sent in gap.If t₁Moment is specifically overlapped with the initial time of symbol, then the t₂Moment and the t₁When It carves and is overlapped.

In the present embodiment, such as shown in Figure 7, Figure 8, t₁When starting of the moment not with any symbol in time window It carves and is overlapped, then it can be by t₁The initial time of next symbol after moment is as the first moment for sending the first signal, i.e. t₂ First moment at moment, i.e., above-mentioned instruction information instruction is t₂Or above-mentioned instruction information can also indicate that t₁Moment or t₁Moment Symbol initial time before, user equipment can receive t at this time₁And t₂Between the short reference signal that sends, certain this finger The mode of showing requires the expense of instruction information to increase with the reduction of indicated time granularity；As shown in figure 9, t₁Moment and when Between the initial time of a certain symbol in window be overlapped, then t₁Moment and the base station send the first first moment of signal t₂Moment It is overlapped.

According to the method for the embodiment of the present invention, in conjunction with Fig. 7 to time diagram shown in Fig. 8 it is found that base station is non-in acquisition It can send as early as possible after authorizing the right to use of the channel of frequency spectrum comprising one of control channel, data channel, reference signal or group The first signal closed is sent again without the initial time until subframe, is provided so as to avoid in time-domain to transmission The waste in source.

Step 1003, the base station sends instruction message at the second moment, wherein when second moment is no earlier than described Between window cut-off time, the instruction message includes the instruction that the base station sends the first signal in the time window.

In the specific implementation process, optionally, instruction message carries the base station the first moment hair in time window The instruction of the first information is sent, in order to which user equipment detects first moment of the base station in time window according to the instruction message Start the first signal sent, requires to need reception and caching the first signal integrity to get off before detection here, or so as to The reference signal received is detected according to the instruction message in user equipment.

During specific implementation step 1003, optionally, the instruction message is carried on the channel of authorization frequency spectrum. Such as shown in Fig. 7 or Fig. 9, the instruction message is transmitted on the channel of authorization frequency spectrum, to indicate in unlicensed spectrum Channel on time window in signal send the case where.Since the channel quality of authorization channel is preferable, and channel resource can be with By the control of base station, therefore user equipment can receive instruction message with higher reliability.Optionally, the instruction information The base station can be carried to obtain the right to use of channel on the channel of multiple unlicensed spectrums or send the information of signal.

During specific implementation step 1003, optionally, such as Fig. 8, the instruction message can also be carried on non-award On the channel for weighing frequency spectrum.The channel for authorizing frequency spectrum can be saved by the way that instruction message to be carried on the channel of unlicensed spectrum Send resource.The transmissions resource of specific instruction message can as shown in Figure 8 from the corresponding time window institute of the instruction message Start in the initial time of next subframe of subframe；Or it is also possible to subframe where the corresponding time window of the instruction message Last N number of symbol.

Down control channel mentioned herein can be physical downlink control channel PDCCH, and the physical down of enhancing controls Channel EPDCCH (Enhanced PDCCH), Physical HARQ Indicator Channel or Physical Control Format Indicator Channel etc..

During specific implementation step 1003, the instruction message is located at the position that user equipment anticipated that.Tool For body, optionally, at the time of second moment is specially default: optional, the base station sends the second of instruction message The initial time of next subframe of subframe where the cut-off time that moment is specially the time window, such as such as Fig. 7 and Fig. 8 institute Show；Optionally, the rearmost position of subframe where the instruction message is particularly located at the cut-off time of the time window, such as such as In last symbol shown in Fig. 9.Optionally, at the time of second moment is specially base station configuration.

During specific implementation step 1003, as shown in Figure 8 and Figure 9, the instruction message and corresponding time window There are time intervals between the cut-off time of mouth, in order to which base station has time enough to form the instruction message.When the base When the right to use for obtaining the channel of the unlicensed spectrum in the time interval of standing, optionally, the base station is when described Between be spaced in send filling signal or reference signal to occupy the channel.

During specific implementation step 1003, optionally, the first signal includes control channel, data channel, reference One of signal or combination, the instruction message indicate that the base station sends first signal at first moment.Specifically , such as in time diagram as shown in Figure 7, instruction message includes 4 bits, can be formed 16 kinds of 4 bits Different states selects 14 kinds of states therein, to indicate some of base station in 14 OFDM symbols in time window The initial time proceed-to-send signal of symbol.For example, the binary character 0000 that 4 bits of the instruction message are formed indicates The base station starts to send the first signal in the initial time of first symbol, and the 0001 mark base station is in second symbol Initial time starts to send the first signal, and so on, when the content of the instruction message is specially 1101, indicate the base station Start to send the first signal in the initial time of the 14th symbol.In addition, the instruction that different subframes (such as adjacent sub-frame) send Different time window corresponding to message can partly overlap, to improve dispatching flexibility.

In another example instruction message includes 3 bits, and 3 bits can be with shape in time diagram as shown in Figure 7 At 8 kinds of different states, 8 kinds of different states are to indicate base station in 8 OFDM symbols in time window The initial time proceed-to-send signal of some symbol.For example, the binary character 000 that 3 bits of the instruction message are formed Indicate that the base station starts to send the first signal in the initial time of first symbol, the 001 mark base station is accorded at second Number initial time start send the first signal, and so on, when the content of the instruction message is specially 111, described in instruction Base station starts to send the first signal in the initial time of the 8th symbol.

During specific implementation step 1003, optionally, the first signal includes reference signal, and the instruction message refers to Show that the base station sends first signal in the time window, in order to which user equipment detects institute in the time window State reference signal.Specifically, described 1 is compared for example, instruction message includes 1 bit in time diagram as shown in Figure 9 2 kinds of different states that spy can be formed, to indicate whether base station has sent the first signal in time window.For example, working as When instruction message is 1, indicates that the base station has sent the first signal in the time window, communicated with the base station User equipment is detected according to signal of the instruction message to time window；When instruction message is 0, the base station is indicated Not sent first signal in the time window, then the user equipment is according to the instruction message not in time window Signal is detected, to save power consumption.

For the user equipment communicated with the base station, user equipment can to the signal in time window into Row caching；In view of the requirement to user equipment low-power consumption, user equipment is difficult to that may be present in each time window First signal carries out the data channel carried on blind Detecting and the first signal of demodulated or decoded place, control channel, reference signal One of or combination, but user equipment is determined by the instruction message that initially receives at the second moment in time window In interior buffered signal, if include the first signal；It include carrying data letter in the signal of caching when instruction message indicates Road, control channel, reference signal one of or combination the first signal when, user equipment detects the signal of caching, The information for including in signal to obtain caching.

Since the present embodiment is 1 pair of a kind of explanation of specific situation in conjunction with the embodiments, in embodiment 1 to related general The definition and explanation of thought, are also all suitable for, the present embodiment repeats no more this in the present embodiment.

The method provided according to embodiments of the present invention, base station determine the channel for obtaining unlicensed spectrum in time window After the right to use, the first signal can be sent immediately；And carrying is sent to indicate the base station in time window at the second moment The interior instruction message for sending the first signal.According to the method for the embodiment of the present invention, filling signal can be effectively reduced in time The time span of occupancy improves resource utilization；Simultaneously but also user equipment is under the premise of being almost to increase operand, root According to the information carried on instruction message the first signal that correctly the demodulated or decoded base station in time window is sent.

Embodiment 3

The method of transmission signal corresponding to Example 1 and Example 2 of the present invention, the embodiment of the present invention propose a kind of reception The method of signal.Figure 11 show the embodiment of the present invention proposition reception signal method, method the following steps are included:

Step 1101, the user equipment of U-LTE system receives and caches the signal on unlicensed spectrum channel, wherein from The first moment in time window includes the first signal that base station is sent in the reception and the signal that caches, and described the One signal includes one of control channel, data channel, reference signal or combination；

Step 1102, the user equipment is in the second reception instruction message；

Step 1103, the user equipment detects first signal according to the instruction message；

Wherein, second moment is no earlier than the time window cut-off time.

Optionally, first moment is not later than the right to use that the base station obtains the channel in the time window At the time of following symbol initial time.

Optionally, there are time intervals between the cut-off time of the time window and second moment.

Optionally, time span of the time span that the time window includes less than a subframe；Or the time The time span that window includes is equal to the time span of a subframe；Or the time span that the time window includes is greater than one The time span of a subframe.

Optionally, the time window includes each portion of time resource in continuous two subframes.

Optionally, second moment includes the predefined moment；Optionally, second moment includes the time window The initial time of next subframe of subframe where mouth cut-off time；Optionally, second moment includes that the time window is cut Only trace back before the end time of subframe where the moment N number of symbol correspondence at the time of, wherein N number of symbol is not less than the instruction The symbolic number that message occupies.

Optionally, channel of the instruction message in authorization frequency spectrum；Optionally, the instruction message is unauthorized The channel of frequency spectrum.

Optionally, the instruction message further includes the time span and/or channel that the channel is used continuously in the base station The time of switching.

In embodiments of the present invention to the definition of time window, the second moment, instruction message, with the embodiment of the present invention 1 and The definition of time window is identical in embodiment 2, and details are not described herein again.

In embodiments of the present invention, the user equipment of U-LTE system is attempted and the U-LTE in the channel of unlicensed spectrum The base station of system is communicated, wherein the method that the base station of the U-LTE system sends signal on the channel of unlicensed spectrum Has detailed description in the embodiment of the present invention 1 and the embodiment of the present invention 2, details are not described herein again.

During implementing step 1101, the channel of the user equipment of the U-LTE system to unlicensed spectrum Signal received and cached.In embodiments of the present invention, reception can be interpreted as caching, or receiving with caching is simultaneously Capable operation；Optionally, the user equipment can also include channel estimation, constellation point demodulation etc. to the signal for receiving and caching Operation, but do not include decoding operate.

In the specific implementation process, corresponding to the method for sending signal in Example 1 and Example 2 of the present invention, work as U- The base station of LTE system sent immediately after determining the right to use for obtaining the channel of the unlicensed spectrum carry data channel, One of control channel, reference signal or the first signal of combination；The user equipment of the U-LTE system is sent in the base station Before the base station sends instruction message, it not can determine that whether the base station obtains the unlicensed spectrum in time window Channel the right to use, and have sent the first signal, then the user equipment first the signal of the channel receive and Caching, in order in step 1103 according to the instruction message that receives to the part for receiving the first signal in the gentle signal deposited It is detected.

It is described since the first moment in time window during specific implementation steps 1101, the reception And include the first signal in the signal cached, it refers to starting the first signal occur in the reception and the signal cached, herein It is not limited to whether first signal in time window is completely received.

In the specific implementation process, user equipment at least receives the letter of the unlicensed spectrum in simultaneously cache-time window Signal on road.Since the user equipment cannot predict which moment of the base station of the U-LTE system in time window The first signal is sent, whether the base station that can not predict the U-LTE system has sent the first signal in time window, therefore User equipment at least receives and the signal in cache-time window.

In the specific implementation process, optionally, user equipment receives and the signal of unlicensed spectrum channel that caches Time span in addition to need include time window time range, further include the cut-off time of time window to detecting the finger At the time of showing message.I.e. for detecting or decoding a downlink data packet, the time span that user equipment needs to cache is greater than should Time span shared by downlink data packet.Specifically, as shown in figure 12, it is assumed that above-mentioned time window is a complete subframe (description of other situations such as above-described embodiment), then the transmission instruction of the first signal of subframe where the time window is (false here If sending the first moment of first signal) it is indicated by the PDCCH of next subframe on authorization carrier wave, that is, indicate information It is sent in the top n symbol of next subframe, such as in preceding 4 symbols.At this point, in order to which user equipment can detecte above-mentioned One signal, user equipment need the time span that caches from the starting point of the time window until detecting instruction message when It is long, it can specifically include time window duration (being the duration of a subframe in this)+above-mentioned time window cut off to instruction Time interval (being 0 in the example)+caching instruction message duration (being 4 symbols in the example) between the starting sending point of message + detect the time (symbol is assumed in the example) that the instruction message needs.Optionally, for detecting or decoding continuous two sons The downlink data packet of frame, two time intervals that user equipment correspondingly needs to cache respectively are overlapping in the time domain.If User equipment does not receive instruction message, then user equipment can remove at least part of the information in caching window, it is contemplated that continuous son The buffer window of frame may be overlapped, and user equipment can also retain the partial information of previous caching window and start next subframe pair The caching for the first signal answered.

In the specific implementation process, optionally, the instruction message carries the first moment in the time window Start, receives and in the signal that caches include the information of first signal.That is, described in instruction message instruction base station transmission First moment of the first signal.Optionally, the user equipment determined for the first moment according to instruction message；The user equipment According to first moment, detect first signal: specifically, first signal include data channel, control channel it One or combination, then the user equipment determines the portion of the first signal in the signal for receiving and caching according to first moment Point, decode first signal；Alternatively, first signal includes reference signal, then the user equipment is according to described first Moment determines the part of the reference signal in the signal for receiving and caching, detects the reference signal.

In the specific implementation process, optionally, the instruction message carries in the time window, receives and caches Signal in include reference signal information.That is, instruction message instruction base station had sent in the time window it is described First signal.Optionally, user equipment determines to include reference signal in the signal for receiving and caching, uses according to instruction message Family equipment detects the reference signal according to the instruction message.User terminal executes such as channel according to the reference signal The tasks such as estimation, Time and Frequency Synchronization, wireless resource management measurement.

User terminal determines the part of reference signal according to the instruction message in the signal of caching, and according to described Reference signal executes the task such as channel estimation, Time and Frequency Synchronization, wireless resource management measurement.

In the specific implementation process, optionally, the instruction message carrying is opened from the first moment of the time window Begin, include the information of first signal in the signal for receiving and caching in the time window: optional, user equipment root According to the instruction message, determine that first signal includes reference signal, wherein the first moment of instruction message instruction with Time interval where first moment between the end time of subframe is less than threshold value；Optionally, the user equipment according to The instruction message determines that first signal includes one of data channel, control channel or combination, wherein the instruction Time interval where first moment and first moment of message instruction between the end time of subframe is not less than institute State threshold value.Specifically, the threshold value can be symbolic number, such as setting threshold value is 6 symbols, then when the first moment with it is locating Subframe terminate boundary between less than 6 symbol duration length of time interval, then the first signal be specially refer to Signal；Conversely, then the first signal is specially one of data channel or control channel or combination.

The method provided according to embodiments of the present invention, the user equipment of U-LTE system is on the channel of unlicensed spectrum It receives in time window and buffered signal, wherein since the first moment in the time window, the reception is simultaneously cached It include the first signal in signal；Second reception instruction message of the user equipment after first moment；The use Family equipment detects the first signal in the time window in the signal for receiving and caching according to the instruction message.Root According to method provided in an embodiment of the present invention, guaranteeing letter of the base station of U-LTE system with higher efficiency using unlicensed spectrum While the resource in road, so that the user equipment of U-LTE system can be correct in the case where almost not increasing computational complexity Acquisition first signal in the information that carries.

Embodiment 4

In order to make the clearer method for receiving signal for understanding the embodiment of the present invention 3 and proposing of those skilled in the art, with And the method for the transmission signal proposed in Example 1 and Example 2 of the present invention, the embodiment of the present invention is on 1 to 3 basis of embodiment On propose the method for communication a kind of, in the method to the transmission signal proposed in the embodiment of the present invention 1 to 3 and receive the side of signal Method is further detailed.The time diagram of combination of embodiment of the present invention Fig. 3 to Fig. 9 is to reception signal proposed by the present invention Method explanation is further explained.

Figure 12 shows a kind of method flow diagram of the communication proposed according to embodiments of the present invention, and the embodiment of the present invention provides Method the following steps are included:

Step 1201, the base station of U-LTE system obtains the right to use of the channel of unlicensed spectrum in time window.

During specific implementation, as in 2 step 1001 of 1 step 201 of the embodiment of the present invention and the embodiment of the present invention In the base station of U-LTE system is obtained unlicensed spectrum channel the right to use method, the base station of U-LTE system obtains institute The method for stating the right to use of channel may be by certain rule competition and obtain, it is also possible to obtain with the coordination of other communication equipments , the embodiment of the present invention is not further limited this.

Step 1202, first moment of the base station after the right to use for obtaining the channel, in the time window Start to send the first signal on that channel；Wherein, first signal includes following at least one: control channel, data Channel, reference signal.

In the specific implementation process, optionally, first moment is not later than the base station and obtains making for the channel The initial time of next symbol at the time of with power.

In the specific implementation process, first signal can include but is not limited to control channel, data channel or One of reference signal or combination, i.e., the described first signaling bearer effective information, and more than useless filling signal.

It in the specific implementation process, may be a symbol at the time of base station obtains the right to use of the channel Initial time, it is also possible to be not overlapped with the initial time of a symbol.Optionally, when the base station obtains the use of the channel When being specifically overlapped with the initial time of a symbol in time window at the time of power, the base station sends the first of the first signal Moment is overlapped at the time of obtaining the right to use of the channel with the base station；Optionally, when the base station obtains the channel When the initial time of any symbol at the time of the right to use in time window is overlapped, the base station will acquire the channel The initial time of next symbol at the time of the right to use is as the first moment and sends the first signal.

For example, as shown in Figure 7, Figure 8, the base station obtains specific at the time of the right to use of the channel of the unlicensed spectrum For t₁Moment, t₁It is not overlapped with the initial time of symbol any in time window；The base station is in t₁Next symbol at moment Initial time, i.e. t₂Moment starts to send the first signal as the first moment.Optionally, the base station is in t₁Moment is to t₂When Filling signal is sent in time interval between quarter with busy channel；Optionally, the base station is not sent out in the time interval Send any signal.

In another example as shown in figure 9, t at the time of shown base station obtains the right to use of the channel of the unlicensed spectrum₁Moment It is overlapped with the initial time of symbol a certain in time window；The base station is in t₁Moment starts to send the first signal, i.e., the described t₁When Carving is first moment.

It is carried effectively since base station can be sent immediately after the right to use for the channel for obtaining unlicensed spectrum First signal of information avoids channel resource caused by by sending filling signal and wastes, sends resource to improve Utilization rate.

Step 1203, the user equipment of U-LTE system receives and caches the signal on unlicensed spectrum channel, wherein from institute The first moment of time window is stated, includes the first signal in the reception and the signal cached.In specific implementation process In, the user equipment of U-LTE system can not learn when the base station of U-LTE system can obtain the unlicensed spectrum in real time The right to use of channel；The user equipment of U-LTE system can carry out the signal on the channel of unlicensed spectrum receiving gentle It deposits；The time of caching include at least time window in corresponding part, in the specific implementation process, optionally, caching when Between can also include time window cut-off time to instruction message receive or decode cut-off time part time.

Step 1204, the base station sends instruction message at the second moment, wherein when second moment is no earlier than described Between window cut-off time, the instruction message includes the finger that the base station sends first signal in the time window Show.In embodiments of the present invention, the second moment is relative to the position of time window, the content of instruction message, carrying instruction message Physical channel etc. it is identical as the related content in the method for 2 step 1003 of the embodiment of the present invention, the embodiment of the present invention is no longer superfluous It states.

Step 1205, second reception instruction message of the user equipment after the time window cut-off time； Wherein, the instruction message carries the letter in the signal for receiving and caching in the time window including first signal Breath.

Step 1206, the user equipment detects first signal according to the instruction message.

In the specific implementation process, optionally, first signal includes control channel, data channel, reference signal One of or combination, the instruction message includes the first moment that base station sends first signal in time window, institute User equipment is stated according to the instruction of the instruction message, determination decodes the first of first signal from the signal of the caching Moment, the user equipment determine the portion including the first signal from the signal of the caching further according to first moment Point, and the information carried on demodulated or decoded first signal out.

In the specific implementation process, optionally, first signal includes reference signal, and the instruction message includes Whether base station sends first signal in time window；User equipment is determined according to the instruction message from the caching First signal is detected in signal.

Specifically in embodiments of the present invention, as shown in fig. 7, first signal includes data channel, control channel, reference One of signal or combination.The instruction message includes 4 bits, 14 in 16 kinds of different conditions that 4 bits are capable of forming Kind of instruction user equipment received in time window and in the signal that caches the first signal initial time.

Specifically in embodiments of the present invention, as shown in figure 8, first signal includes reference signal, the instruction message Including 1 bit, 1 bit can indicate that situation different in 2, one of situation indicate that the base station is sent out in time window The first signal is sent；The user equipment carries out the signal for receiving and caching in time window according to the instruction message Detection, to execute the task such as channel estimation, Time and Frequency Synchronization, wireless resource management measurement.

The method provided according to embodiments of the present invention, the base station of U-LTE system can obtain unauthorized in time window After the right to use of the channel of frequency spectrum, useful signal is sent immediately, improves the resource utilization of the channel of unlicensed spectrum；Together When, the user equipment of U-LTE system can be according to the instruction message received later, in the feelings for almost not increasing computational complexity The information carried in first signal can be correctly obtained under condition.

Embodiment 5

The embodiment of the present invention proposes a kind of device for sending signal, and the device that the embodiment of the present invention proposes can be to realize The method for the transmission signal that the embodiment of the present invention 1 and the embodiment of the present invention 2 propose.

Figure 13 shows the structure drawing of device of the transmission signal of proposition of the embodiment of the present invention, and described device includes processing Device 1301 and transceiver 1302, in which:

The processor 1301 is used under the assistance of the transceiver, is obtained in unlicensed spectrum in time window The right to use of channel；

The transceiver 1302 is used for, after the right to use for obtaining the channel, in the time window first when It carves and starts to send the first signal on that channel；Wherein, first signal includes following at least one: control channel, number It is believed that road, reference signal；

The transceiver 1302 is also used to, and sends instruction message at the second moment；

Wherein, second moment is no earlier than the time window cut-off time；

In the specific implementation process, optionally, first moment is not later than the base station in the time window The initial time of following symbol at the time of obtaining the right to use of the channel；

In the specific implementation process, optionally, it is deposited between the cut-off time of the time window and second moment In time interval.

In the specific implementation process, optionally, the time span that the time window includes less than subframe when Between length；Alternatively, the time span that the time window includes is equal to the time span of a subframe；Alternatively, the time window The time span that mouth includes is greater than the time span of a subframe.

In the specific implementation process, optionally, the time window includes each portion of time in continuous two subframes Resource.

In the specific implementation process, optionally, second moment is located at the predetermined time of subframe.

In the specific implementation process, optionally, second moment includes son where the time window cut-off time The initial time of next subframe of frame；Or second moment includes the termination of subframe where the time window cut-off time At the time of N number of symbol that traced back before moment corresponds to, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

In the specific implementation process, optionally, channel of the instruction message in authorization frequency spectrum；Or it is described Channel of the instruction message in unlicensed spectrum.

In the specific implementation process, optionally, first signal includes control channel, data channel and reference signal One of or combination, the instruction message indicate first moment of the device in the time window for sending signal Send first signal；Or first signal includes reference signal, the instruction message indicates the transmission signal Device sends first signal in the time window.

In the specific implementation process, optionally, after the right to use for obtaining the channel, the transceiver is when described Between the first moment in window start to send the first signal on that channel to include: that the transceiver is opened from first moment It originates and send reference signal, wherein between the time where first moment and first moment between the end time of subframe Every less than threshold value；Either the transceiver sends one of control channel, data channel or combination since first moment, Wherein, the time interval between first moment and the end time of first moment place subframe is not less than the threshold Value.

In the specific implementation process, optionally, the reference signal is aperiodic reference signal, the aperiodic reference Signal is preconfigured or short notice in the running time-frequency resource of subframe；The reference signal is periodic reference signal, institute It is preconfigured for stating the running time-frequency resource of the period and the periodic signal of periodic reference signal in subframe.

In the specific implementation process, optionally, the instruction message further includes that the channel is used continuously in the base station Time span and/or channel switching information.

The device of the transmission signal provided according to embodiments of the present invention, the device for sending signal are true in time window Surely after the right to use of channel for obtaining unlicensed spectrum, the first signal can be sent immediately；And carrying is sent at the second moment and is used To indicate that the device for sending signal sends the instruction message of the first signal in time window.It mentions according to embodiments of the present invention Device out can effectively reduce the time span of filling signal occupancy in time, improve resource utilization；While but also User equipment is correctly demodulated or decoded in time window according to instruction message under the premise of almost not increasing operand The information carried on the first signal that base station is sent.

Embodiment 6

The embodiment of the present invention proposes a kind of device for receiving signal, and the device that the embodiment of the present invention proposes can be to realize The method for the transmission signal that the embodiment of the present invention 3 proposes.

Figure 14 shows the structure drawing of device of the transmission signal of proposition of the embodiment of the present invention, and described device includes processing Device 1401, transceiver 1402 and buffer 1403, in which:

The transceiver 1402 is used to receive the signal on unlicensed spectrum channel；

The buffer 1403 is used to cache signal on the received unlicensed spectrum channel of the transceiver, wherein from when Between the first moment in window, include the first signal that base station is sent in the reception and the signal cached, described first Signal includes one of control channel, data channel, reference signal or combination；The transceiver 1402 is cut in the time window Only the second reception instruction message after the moment；Wherein the instruction message carrying is received and is cached in the time window Signal in include first signal information；

The processor 1401 is used to detect first signal according to the instruction message.

In the specific implementation process, optionally, the time span that the time window includes less than subframe when Between length；Or the time window include time span be equal to a subframe time span.

In the specific implementation process, optionally, second moment includes the predefined moment.

In the specific implementation process, optionally, second moment includes including the time window cut-off time institute In the initial time of next subframe of subframe；Or second moment includes subframe where the time window cut-off time Trace back before end time N number of symbol correspondence at the time of, wherein N number of symbol be not less than the instruction message occupy symbol Number.

In the specific implementation process, optionally, channel of the instruction message in authorization frequency spectrum；Or it is described Channel of the instruction message in the unlicensed spectrum.

In the specific implementation process, optionally, it is received by the transceiver, the signal of the buffer also wraps It includes, from the signal of cut-off time of the time window between at the time of detecting the instruction message.

In the specific implementation process, optionally, the instruction message carrying is received and is cached in the time window Signal in include first signal information, comprising: first signal include one of data channel, control channel or Combination, the instruction message carry since the first moment of the time window, receive and cache in the time window Signal in include first signal information.

In the specific implementation process, optionally, the processor 1401 is according to the instruction message, detection described first Signal, comprising: the processor is used to determine first moment according to the instruction message；The processor is also used to root According to first moment, first signal is decoded.

In the specific implementation process, optionally, the instruction message carrying is received and is cached in the time window Signal in include first signal information, comprising: first signal includes reference signal, and the instruction message carries It include first letter since the first moment of the time window, in the signal that receives and cache in the time window Number information；Or first signal includes reference signal, the instruction message carrying receives and delays in the time window It include the information of first signal in the signal deposited.

In the specific implementation process, optionally, the processor is according to the first moment carried in the instruction message Information, detect the reference signal；Or the processor detects the reference signal according to the instruction message.

In the specific implementation process, optionally, the instruction message carrying is opened from the first moment of the time window Begin, includes the information of first signal in the signal for receiving and caching in the time window；The processor is used for root According to the instruction message, determine that first signal includes reference signal, wherein the first moment of instruction message instruction with Time interval where first moment between the end time of subframe is less than threshold value；Or the processor is according to the finger Show message, determines that first signal includes one of data channel, control channel or combination, wherein the instruction message refers to Time interval where first moment shown and first moment between the end time of subframe is not less than the threshold value.

In the specific implementation process, optionally, the reference signal is aperiodic reference signal, the aperiodic reference Running time-frequency resource of the signal in subframe is preconfigured or short notice；Or the reference signal is cycle reference letter Number, the running time-frequency resource of the period of the periodic reference signal and the periodic reference signal in subframe is preconfigured.

In the specific implementation process, optionally, the instruction message further includes continuously receiving signal in the channel Time span and/or the information of channel switching.

The device provided according to embodiments of the present invention receives time window of the device of signal on the channel of unlicensed spectrum Simultaneously buffered signal is received in mouthful, wherein since the first moment in the time window, in the reception and the signal cached Including the first signal；Second reception instruction message of the device for receiving signal after first moment；It is described to connect The device of the collection of letters number detects the first letter in the time window in the signal for receiving and caching according to the instruction message Number.The device provided according to embodiments of the present invention utilizes unlicensed spectrum in the base station of guarantee U-LTE system with higher efficiency Channel resource while so that U-LTE system reception signal device the case where almost not increasing computational complexity The information carried in first signal can be correctly obtained down.

Claims

1. a kind of method for sending signal characterized by comprising

After the right to use for obtaining the channel, the first moment in the time window opens on that channel for the base station It originates and send the first signal；Wherein, first signal includes following at least one: control channel, data channel, reference signal；

The base station sends instruction message at the second moment；Wherein, the instruction message includes the base station in the time window The instruction of first signal is sent in mouthful, second moment is no earlier than the cut-off time of the time window.

2. the method according to claim 1, wherein the cut-off time of the time window and second moment Between there are time intervals.

3. the method according to claim 1, wherein less than one son of time span that the time window includes The time span of frame；Or

4. method according to any one of claims 1 to 3, which is characterized in that the time window includes continuous two subframes In each portion of time resource.

5. method according to any one of claims 1 to 3, which is characterized in that second moment be located at subframe it is default when It carves.

6. method according to any one of claims 1 to 3, which is characterized in that second moment includes the time window The initial time of next subframe of subframe where cut-off time；Or

Second moment include trace back before the end time of subframe where time window cut-off time N number of symbol it is corresponding when It carves, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

7. method according to any one of claims 1 to 3, which is characterized in that channel of the instruction message in authorization frequency spectrum Upper transmission；Or

Channel of the instruction message in the unlicensed spectrum.

8. the method according to claim 1, wherein first signal include control channel, data channel and One of reference signal or combination, the instruction message indicate first moment hair of the base station in the time window Send first signal；Or

First signal includes reference signal, described in the instruction message indicates that the base station sends in the time window First signal.

9. the method according to claim 1, wherein the base station is after the right to use for obtaining the channel, The first moment in the time window starts to send the first signal on that channel

The base station sends reference signal since first moment, wherein first moment and the first moment institute Time interval between the end time of subframe is less than threshold value；Or

The base station sends one of control channel, data channel or combination since first moment, wherein described first Time interval where moment and first moment between the end time of subframe is not less than the threshold value.

10. method according to claim 8 or claim 9, which is characterized in that the reference signal is aperiodic reference signal, institute Stating running time-frequency resource of the aperiodic reference signal in subframe is preconfigured or short notice；Or

The reference signal is periodic reference signal, and the period of the periodic reference signal and the periodic reference signal are in son Running time-frequency resource in frame is preconfigured.

11. method according to any one of claims 1 to 3, which is characterized in that the instruction message further includes that the base station connects The information of continuous time span and/or channel switching using the channel.

12. a kind of method for receiving signal characterized by comprising

The user equipment of U-LTE system receives and caches the signal on unlicensed spectrum channel, wherein from time window It include the first signal that base station is sent in one moment, the reception and the signal cached, first signal includes control One of channel, data channel, reference signal or combination；

Second reception instruction message of the user equipment after the time window cut-off time；Wherein, the instruction Message carries the information in the signal for receiving and caching in the time window including first signal；

The user equipment detects first signal according to the instruction message.

13. according to the method for claim 12, which is characterized in that when the cut-off time of the time window is with described second There are time intervals between quarter.

14. according to the method for claim 12, which is characterized in that the time span that the time window includes is less than one The time span of subframe；Or

15. 2 to 14 any method according to claim 1, which is characterized in that the time window includes continuous two sons Each portion of time resource in frame.

16. 2 to 14 any method according to claim 1, which is characterized in that when second moment includes predefined It carves.

17. 2 to 14 any method according to claim 1, which is characterized in that second moment includes the time window The initial time of next subframe of subframe where mouth cut-off time；Or

Second moment includes the corresponding of N number of symbol of tracing back before the end time of subframe where time window cut-off time Moment, wherein N number of symbol is not less than the symbolic number that the instruction message occupies.

18. 2 to 14 any method according to claim 1, which is characterized in that letter of the instruction message in authorization frequency spectrum It is transmitted on road；Or

Channel of the instruction message in the unlicensed spectrum.

19. 2 to 14 any method according to claim 1, which is characterized in that the letter that the user equipment is received and cached Number further include, from the signal of cut-off time of the time window between at the time of detecting the instruction message.

20. 2 to 14 any method according to claim 1, which is characterized in that the instruction message was carried in the time It include the information of first signal in the interior signal for receiving and caching of window, comprising:

First signal includes one of data channel, control channel or combination, and the instruction message was carried from the time First moment of window includes the information of first signal in the signal for receiving and caching in the time window.

21. according to the method for claim 20, which is characterized in that the user equipment is according to the instruction message, detection First signal, comprising: the user equipment determines first moment according to the instruction message；

The user equipment decodes first signal according to first moment.

22. 2 to 14 any method according to claim 1, which is characterized in that the instruction message was carried in the time It include the information of first signal in the interior signal for receiving and caching of window, comprising:

First signal includes reference signal, and the instruction message was carried since the first moment of the time window, It include the information of first signal in the interior signal for receiving and caching of the time window；Or

First signal includes reference signal, and the instruction message carries in the signal for receiving and caching in the time window Information including first signal.

23. according to the method for claim 22, which is characterized in that the user equipment is carried according in the instruction message The first moment information, detect the reference signal；Or

The user equipment detects the reference signal according to the instruction message.

24. 2 to 14 any method according to claim 1, which is characterized in that the instruction message was carried from the time First moment of window includes the information of first signal in the signal for receiving and caching in the time window；

The user equipment determines that first signal includes reference signal according to the instruction message, wherein the instruction disappears Time interval where the first moment and first moment that cease instruction between the end time of subframe is less than threshold value；Or

The user equipment according to the instruction message, determine first signal include one of data channel, control channel or Person's combination, wherein the end time of subframe where first moment and first moment of instruction message instruction it Between time interval be not less than the threshold value.

25. 2 to 14 any method according to claim 1, which is characterized in that the reference signal is aperiodic with reference to letter Number, running time-frequency resource of the aperiodic reference signal in subframe is preconfigured or short notice；Or

26. 2 to 14 any method according to claim 1, which is characterized in that the instruction message further includes in the letter Road continuously receives the time span of signal and/or the information of channel switching.

27. a kind of device for sending signal, which is characterized in that including transceiver and processor, in which: the processor is used for Under the assistance of the transceiver, the right to use of the channel in unlicensed spectrum is obtained in time window；

The transceiver is used for, and after the right to use for obtaining the channel, the first moment in the time window starts The first signal is sent on the channel；Wherein, first signal includes following at least one: control channel, data channel, ginseng Examine signal；

Wherein, second moment is no earlier than the time window cut-off time；

Wherein, the instruction message includes that the device for sending signal sends first signal in the time window Instruction.

28. device according to claim 27, which is characterized in that when the cut-off time of the time window is with described second There are time intervals between quarter.

29. device according to claim 27, which is characterized in that the time span that the time window includes is less than one The time span of subframe；Or

30. according to any device of claim 27 to 29, which is characterized in that the time window includes continuous two sons Each portion of time resource in frame.

31. according to any device of claim 27 to 29, which is characterized in that second moment is located at the default of subframe Moment.

32. according to any device of claim 27 to 29, which is characterized in that second moment includes the time window The initial time of next subframe of subframe where mouth cut-off time；Or

33. according to any device of claim 27 to 29, which is characterized in that letter of the instruction message in authorization frequency spectrum It is transmitted on road；Or

Channel of the instruction message in unlicensed spectrum.

34. device according to claim 27, which is characterized in that first signal includes control channel, data channel With one of reference signal or combination, the instruction message indicates institute of the device for sending signal in the time window State the first moment transmission first signal；Or

First signal includes reference signal, and the instruction message indicates the device for sending signal in the time window It is interior to send first signal.

35. device according to claim 27, which is characterized in that after the right to use for obtaining the channel, the transmitting-receiving First moment of the device in the time window starts to send the first signal on that channel

The transceiver sends reference signal since first moment, wherein first moment and first moment Time interval between the end time of place subframe is less than threshold value；Or

The transceiver sends one of control channel, data channel or combination since first moment, wherein described the Time interval where one moment and first moment between the end time of subframe is not less than the threshold value.

36. according to any device of claim 34 or 35, which is characterized in that the reference signal is aperiodic with reference to letter Number, the aperiodic reference signal is preconfigured or short notice in the running time-frequency resource of subframe；Or

The reference signal is periodic reference signal, and the period of the periodic reference signal and the periodic signal are in subframe Running time-frequency resource be preconfigured.

37. according to any device of claim 27 to 29 or 34 to 35, which is characterized in that the instruction message is also wrapped It includes base station and the time span of the channel and/or the information of channel switching is used continuously.

38. a kind of device for receiving signal, which is characterized in that including processor, transceiver and buffer, in which:

The transceiver is used to receive the signal on unlicensed spectrum channel；

The buffer is used to cache the signal on the received unlicensed spectrum channel of the transceiver, wherein out of time window The first moment, include the first signal that base station is sent in the reception and the signal that caches, first signal includes One of control channel, data channel, reference signal or combination；The transceiver after the time window cut-off time Two reception instruction messages；Wherein the instruction message, which carries in the signal for receiving and caching in the time window, includes The information of first signal；

39. the device according to claim 38, which is characterized in that when the cut-off time of the time window is with described second There are time intervals between quarter.

40. the device according to claim 38, which is characterized in that the time span that the time window includes is less than one The time span of subframe；Or

41. according to any device of claim 38 to 40, which is characterized in that the time window includes continuous two sons Each portion of time resource in frame.

42. according to any device of claim 38 to 40, which is characterized in that when second moment includes predefined It carves.

43. according to any device of claim 38 to 40, which is characterized in that when second moment is including including described Between subframe where window cut-off time next subframe initial time；Or

44. according to any device of claim 38 to 40, which is characterized in that letter of the instruction message in authorization frequency spectrum It is transmitted on road；Or

Channel of the instruction message in the unlicensed spectrum.

45. according to any device of claim 38 to 40, which is characterized in that received by the transceiver, the caching The signal of device caching further includes, from the letter of cut-off time of the time window between at the time of detecting the instruction message Number.

46. according to any device of claim 38 to 40, which is characterized in that the instruction message was carried in the time It include the information of first signal in the interior signal for receiving and caching of window, comprising:

47. device according to claim 46, which is characterized in that the processor detects institute according to the instruction message State the first signal, comprising:

The processor is also used to decode first signal according to first moment.

48. according to any device of claim 38 to 40, which is characterized in that the instruction message was carried in the time It include the information of first signal in the interior signal for receiving and caching of window, comprising:

49. device according to claim 48, which is characterized in that the processor is according to carrying in the instruction message The information at the first moment detects the reference signal；Or

The processor detects the reference signal according to the instruction message.

50. according to any device of claim 38 to 40, which is characterized in that the instruction message was carried from the time First moment of window includes the information of first signal in the signal for receiving and caching in the time window；

The processor is used to determine that first signal includes reference signal, wherein the instruction according to the instruction message Time interval where the first moment and first moment of message instruction between the end time of subframe is less than threshold value；Or

The processor according to the instruction message, determine first signal include one of data channel, control channel or Combination, wherein where first moment and first moment of the instruction message instruction between the end time of subframe Time interval be not less than the threshold value.

51. according to any device of claim 38 to 40, which is characterized in that the reference signal is aperiodic with reference to letter Number, running time-frequency resource of the aperiodic reference signal in subframe is preconfigured or short notice；Or

52. according to any device of claim 38 to 40, which is characterized in that the instruction message further includes in the letter Road continuously receives the time span of signal and/or the information of channel switching.