CN106549745A

CN106549745A - The sending method and device of reference signal, method of reseptance and device

Info

Publication number: CN106549745A
Application number: CN201510747365.5A
Authority: CN
Inventors: 张雯; 夏树强; 戴博; 徐俊; 石靖; 陈宪明; 刘锟
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-09-17
Filing date: 2015-11-05
Publication date: 2017-03-29

Abstract

The invention provides the sending method and device of a kind of reference signal, method of reseptance and device, wherein, the method includes：Base station sends the first reference signal by N number of antenna port on the first running time-frequency resource, and the first running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.By the present invention, solve the problems, such as that the allocation plan of cell reference signals in correlation technique is difficult to meet different UE demands.

Description

The sending method and device of reference signal, method of reseptance and device

Technical field

The present invention relates to the communications field, the sending method and device, method of reseptance in particular to a kind of reference signal And device.

Background technology

Machine type communication (Machine Type Communication, referred to as MTC) user terminal (User Equipment, referred to as UE), it is logical also known as machine to machine (Machine to Machine, abbreviation M2M) user Letter equipment, is the main application form of current Internet of Things.Disclose several in 3GPP technical report TR45.820V200 The technology suitable for honeycomb level Internet of Things (C-IOT) is planted, wherein, NB-LTE technologies are the most noticeable.The system System bandwidth be 200kHz, with global system for mobile communications (Global System for Mobile Communication, Referred to as GSM) channel width it is identical, this be NB-LTE system reuse GSM frequency spectrums and reduce adjacent to and GSM Interfering for channel brings great convenience.The transmitted bandwidth of NB-LTE is respectively with downstream link sub-carrier interval 180kHz and 15kHz, respectively with one Physical Resource Block of LTE system (Physical Resource Block are referred to as PRB) Bandwidth it is identical with subcarrier spacing.In NB-LTE systems, a M- subframe is made up of 6 subframes, is wrapped altogether Containing 6 PRB.

During how cell reference signals (Cell Reference Signal are referred to as CRS) configure and send and be NB-LTE One problem for needing to solve.The function of CRS is mainly used for the measurement and demodulation of UE.For NB-LTE, UE All it is generally stationary indoors, therefore for the normal UE for covering, the time domain density of CRS can be without as correlation technique In Long Term Evolution (Long Term Evolution, referred to as LTE) system it is so close, reduce CRS transmission resource, The power consumption that base station eNB can be saved to a certain extent and the interference for reducing neighboring interval.And in NB-LTE systems, also Quite a lot UE for needing coverage enhancement are there may be, needs by encrypting CRS to lift demodulation performance.

It is difficult to meet the problem of different UE demands for the allocation plan of cell reference signals in correlation technique, at present not yet There is effective solution.

The content of the invention

The invention provides the sending method and device of a kind of reference signal, method of reseptance and device, at least to solve correlation In technology, the allocation plan of cell reference signals is difficult to the problem for meeting different UE demands.

According to an aspect of the invention, there is provided a kind of sending method of reference signal, including：Base station is in the first time-frequency The first reference signal is sent by N number of antenna port in resource, first running time-frequency resource is predefined and/or base station Configuration, wherein, N is positive integer.

Further, it is determined that the mode of first running time-frequency resource includes one below：The predefined first time-frequency money Source determines at least one of in the following manner：The time-domain resource being located according to the publicly-owned message of all or part and/or frequency domain Resource determines first running time-frequency resource, wherein, the publicly-owned message includes：Master Information Block MIB, system information block SIB, beep-page message, the Downlink Control Information for dispatching the beep-page message, RAR, the descending control for dispatching the RAR Information；The cell ID of cell according to residing for the base station determines first running time-frequency resource；First running time-frequency resource by The base station configures in the following manner：The base station notifies first running time-frequency resource in MIB and/or SIB；Institute The part stated in the first running time-frequency resource determined by the predefined mode, the mode that remainder is configured by the base station It is determined that.

Further, described in the time-domain resource being located according to the publicly-owned message of all or part and/or frequency domain resource determine The mode of the first running time-frequency resource includes：The antenna port of corresponding first reference signal of the publicly-owned message of all or part and / or the corresponding pattern of the antenna port determined by the type of the publicly-owned message of all or part.

Further, the antenna port of first reference signal and/or the corresponding pattern of the antenna port are predefined Or base station configuration.

Further, the antenna port and/or the corresponding pattern of the antenna port in first reference signal is described Base station configuration when, including：Antenna port comprising the reference signal and/or the antenna end in MIB and/or SIB The corresponding drawing information of mouth.

Further, methods described also includes：The base station sends the second reference signal by the second running time-frequency resource.

Further, the corresponding subframe of second running time-frequency resource is at least one of：The subframe at the MIB places, The subframe at master sync signal PSS/ auxiliary synchronous signals SSS places, multicast/multicast single-frequency network network MBSFN sub-frame.

Further, in independent operation standalone scenes, second running time-frequency resource is corresponding in the subframe Symbol is one or more symbol in front four symbols of the subframe.

Further, in the subframe, the corresponding symbol of second running time-frequency resource be in following symbol or Multiple symbols：First symbol, second symbol and third last symbol in each time slot of the subframe；Institute State front four symbols of subframe.

Further, in the MBSFN sub-frame, the corresponding symbol of second running time-frequency resource is MBSFN regions In each symbol, or the symbol of the odd number index in MBSFN regions, or the idol in MBSFN regions The symbol of number index.

Further, the base station sends the second reference signal by the second running time-frequency resource and includes：In N number of antenna end On some or all antenna ports in mouthful, the base station sends second reference signal by second running time-frequency resource.

Further, second running time-frequency resource and first running time-frequency resource are not overlapped.

Further, second running time-frequency resource is determined according to the mode of at least one of：The base station is to designated terminal Send the time-domain resource and/or frequency domain resource of downstream signal；The base station sends Physical Downlink Shared Channel to first terminal The time-domain resource and/or frequency domain resource of PDSCH；The base station sends the time-domain resource of Downlink Control Information to second terminal And/or frequency domain resource.

Further, also include：Second running time-frequency resource is determined according at least one of：The weight of the PDSCH Again number, the number of repetition of the Downlink Control Information, the form of the Downlink Control Information, dispatch the PDSCH Downlink Control Information, the designated terminal or the first terminal or the second terminal type or transmission mode.

Further, the Downlink Control Information of the scheduling PDSCH includes：In the Downlink Control Information DCI It is included in the time-domain resource and/or frequency domain resource for send the PDSCH and sends the configured information of second reference signal.

Further, the antenna port of second reference signal and/or the corresponding pattern of the antenna port are default Or the base station configuration.

Further, the corresponding default pattern of antenna port and/or the antenna port of second reference signal passes through In the following manner determines：The antenna port and/or the corresponding pattern of the antenna port of second reference signal is by the base Stand：The type or transmission of the designated terminal or the first terminal or the second terminal Pattern；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The Downlink Control Information Form；The preamble sent during the terminal Stochastic accessing.

Further, before the base station sends downstream signal to the designated terminal, or the base station is to described first Before terminal sends PDSCH, or before the base station sends Downlink Control Information to the second terminal, methods described Also include：The base station sends DCI or first high to the designated terminal or the first terminal or the second terminal Layer signaling, wherein, the DCI or first high-level signaling carry and indicate to send downstream signal in the terminal In the configured information for sending the second reference signal in time-domain resource and/or frequency domain resource.

Further, the antenna port of second reference signal and/or the corresponding pattern of the antenna port are by following At least one mode configure：Notify in SIB, notify in the first high-level signaling or in the DCI, second Notify in high-level signaling, receive in the designated terminal or the first terminal or the second terminal Stochastic accessing Notify in accidental access response RAR.

Further, the corresponding resource location of second running time-frequency resource is the RE in multiple Resource Unit RE set S, RE in the set S includes：Between the 1st, the 2nd in each time slot and the frequency domain on the 3rd symbol reciprocal 4 RE of 2 RE are divided into, the initial RE positions of 4 RE are determined by base station cell mark；It is described When the cyclic prefix CP of symbol is normal CP, the 3rd in each time slot, the 4th, the 6th and the 7th symbol On number for the 1st, the 2nd, the 6th, the 7th, the 11st and the 12nd RE；The circulation of the symbol Prefix for extension CP when, the 2nd on two symbols of the inverse in even timeslots, the 5th, the 8th, the 11st Individual RE, the 3rd, the 6th, the 9th, the 12nd RE on two symbols of the inverse in odd numbered slots；Wherein, The symbol starts sequence from 1 sequentially in time, and the RE in the set S is minimum to highest from frequency according to frequency Order from 1 start sequence.

According to another aspect of the present invention, there is provided a kind of method of reseptance of reference signal, including：Terminal receives base station The first reference signal sent by N number of antenna port on the first running time-frequency resource, first running time-frequency resource is predefined And/or base station configuration, wherein, N is positive integer.

Further, methods described also includes：The terminal receives second that the base station is sent by the second running time-frequency resource Reference signal.

Further, the base station sends the second reference signal by the second running time-frequency resource and includes：The terminal receives described Send described by second running time-frequency resource on some or all antenna ports of the base station in N number of antenna port Second reference signal.

Further, before the base station sends downstream signal to designated terminal, or the base station is whole to described first Before end sends PDSCH, or before the base station sends Downlink Control Information to the second terminal, methods described Also include：The base station sends DCI or first high to the designated terminal or the first terminal or the second terminal Layer signaling, wherein, the DCI or first high-level signaling carry and indicate to send downstream signal in the terminal In the configured information for sending the second reference signal in time-domain resource and/or frequency domain resource.

Further, the antenna port of second reference signal and/or the corresponding pattern of the antenna port are by following At least one mode configure：Notify in SIB, notify in the first high-level signaling or in the DCI, second Notify in high-level signaling, connect in the designated terminal or reception or the first terminal or the second terminal Stochastic accessing Notify in the accidental access response RAR for receiving.

According to a further aspect of the invention, there is provided a kind of dispensing device of reference signal, base station side is applied to, including： First sending module, on the first running time-frequency resource by N number of antenna port send the first reference signal, described first Running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

Further in determining that the mode of first running time-frequency resource includes one below：Predefined first time-frequency Resource determines at least one of in the following manner：The time-domain resource being located according to the publicly-owned message of all or part and/or frequency Domain resource determines first running time-frequency resource, wherein, the publicly-owned message includes：Master Information Block MIB, system information block SIB, beep-page message, the Downlink Control Information for dispatching the beep-page message, RAR, the descending control for dispatching the RAR Information；The cell ID of cell according to residing for the base station determines first running time-frequency resource；First running time-frequency resource by The base station configures in the following manner：The base station notifies first running time-frequency resource in MIB and/or SIB；Institute The part stated in the first running time-frequency resource determined by the predefined mode, the mode that remainder is configured by the base station It is determined that.

Further, described device also includes：Second sending module, refers to for sending second by the second running time-frequency resource Signal.

Further, also include：Second running time-frequency resource is determined according at least one of：The weight of the PDSCH Again number, the number of repetition of the Downlink Control Information, the form of the Downlink Control Information, dispatch the PDSCH Downlink Control Information；The type or transmission mode of the designated terminal or the first terminal or the second terminal.

Further, the corresponding default pattern of antenna port and/or the antenna port of second reference signal passes through In the following manner determines：The antenna port and/or the corresponding pattern of the antenna port of second reference signal is by the base Stand：The type or biography of the designated terminal and/or the first terminal or the second terminal Defeated pattern；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The Downlink Control Information Form；The preamble sent during the terminal Stochastic accessing.

Further, before the base station sends downstream signal to designated terminal, or the base station is to the first terminal Before sending PDSCH, or before the base station sends Downlink Control Information to the second terminal, described device is also wrapped Include：The base station sends the high-rise letters of DCI or first to the designated terminal or the first terminal or the second terminal Order, wherein, the DCI or first high-level signaling carry the time domain for indicating that downstream signal is sent in the terminal In the configured information for sending the second reference signal in resource and/or frequency domain resource.

Further, the antenna port of second reference signal and/or the corresponding pattern of the antenna port are by following At least one mode configure：In SIB notify, in first high-level signaling or in the DCI notify, Notify in second high-level signaling, receive in the designated terminal or the first terminal or the second terminal Stochastic accessing To accidental access response RAR or message in notify.

According to a further aspect of the invention, there is provided a kind of reception device of reference signal, end side is applied to, including： First receiver module, for receiving the first reference signal that base station is sent by N number of antenna port on the first running time-frequency resource, First running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

Further, the antenna port and/or the corresponding pattern of the antenna port in first reference signal is described Base station configuration when, including in MIB and/or SIB comprising the reference signal antenna port and/or the antenna port Corresponding drawing information.

Further, described device also includes：The base station sends the second reference signal by the second running time-frequency resource.

Further, the corresponding default pattern of antenna port and/or the antenna port of second reference signal passes through In the following manner determines：The antenna port and/or the corresponding pattern of the antenna port of second reference signal is by the base Stand：The type or transmission of the designated terminal and the first terminal or the second terminal Pattern；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The Downlink Control Information Form；The preamble sent during the terminal Stochastic accessing.

Further, before the base station sends downstream signal to designated terminal, or the base station is to the first terminal Before sending PDSCH, or before the base station sends Downlink Control Information to the second terminal, described device is also wrapped Include：3rd receiver module, for receiving DCI or the first high-level signaling that the base station sends, wherein, the DCI Or first high-level signaling carries the time-domain resource and/or frequency domain money for indicating that downstream signal is sent in the terminal In the configured information for sending the second reference signal on source.

By the present invention, N number of day is passed through using base station on the first running time-frequency resource of predefined and/or described base station configuration Line end mouth sends the first reference signal, and the N is positive integer, i.e. the first time-frequency by predefining and/or base station configures Resource simultaneously sends the first reference signal in N number of antenna port so that the mode for sending reference signal is more enriched, and solves In correlation technique, the allocation plan of cell reference signals is difficult to the problem for meeting different UE demands.

Description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the flow chart of the sending method of reference signal according to embodiments of the present invention；

Fig. 2 is the flow chart of the method for reseptance of reference signal according to embodiments of the present invention；

Fig. 3 is the structured flowchart of the dispensing device of reference signal according to embodiments of the present invention；

Fig. 4 is the alternative construction block diagram one of the dispensing device of reference signal according to embodiments of the present invention；

Fig. 5 is the structured flowchart of the reception device of kind reference signal according to embodiments of the present invention；

Fig. 6 is the alternative construction block diagram one of the reception device of kind reference signal according to embodiments of the present invention；

It is the signal that density is increased on 2 symbols and frequency domain in a time domain according to alternative embodiment of the present invention that Fig. 7 is Figure；

Fig. 8 a～8c is according to this alternative embodiment transmission antenna port 0 on 2 symbols or on 1 symbol The schematic diagram of CRS；

Fig. 9 is the schematic diagram one of the RE set S according to alternative embodiment of the present invention；

Figure 10 is the first reference signal of transmission and the schematic diagram of the second reference signal according to alternative embodiment of the present invention；

The schematic diagram one of RE set S1 when Figure 11 is the normal CP according to alternative embodiment of the present invention；

The schematic diagram two of RE set S1 when Figure 12 is the normal CP according to alternative embodiment of the present invention；

Figure 13 is the optional schematic diagram two of the RE set S according to alternative embodiment of the present invention；

Figure 14 is according to showing that the pilot tone of alternative embodiment of the present invention is sent in the subframe that MIB or PSS/SSS is located It is intended to；

Figure 15 is the schematic diagram sent in MBSFN sub-frame according to the pilot tone of alternative embodiment of the present invention.

Specific embodiment

Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, " second " Etc. being for distinguishing similar object, without for describing specific order or precedence.

A kind of sending method of reference signal is provided in the present embodiment, and Fig. 1 is reference letter according to embodiments of the present invention Number sending method flow chart, as shown in figure 1, the flow process comprises the steps：

Step S102：Base station sends the first reference signal by N number of antenna port on the first running time-frequency resource, wherein, First running time-frequency resource is the configuration of predefined and/or base station, and N is positive integer.

By the present embodiment, pass through N number of using base station on the first running time-frequency resource of predefined and/or described base station configuration Antenna port sends the first reference signal, and the N is positive integer, i.e., when by the first of predefined and/or base station configuration Frequency resource simultaneously sends the first reference signal in N number of antenna port so that the mode for sending reference signal is more enriched, and solves In correlation technique, the allocation plan of cell reference signals is difficult to meet the problem of different UE demands.

Based on the first running time-frequency resource being related in above-mentioned the present embodiment, determine that the mode of first running time-frequency resource includes following One of：

Mode one：Predefined first running time-frequency resource determines at least one of in the following manner：It is public according to all or part The time-domain resource and/or frequency domain resource for having message place determines the first running time-frequency resource, wherein, publicly-owned message includes：Main letter Breath block MIB, system information block SIB, beep-page message, the Downlink Control Information of scheduling paging message, RAR, scheduling The Downlink Control Information of RAR；The cell ID of cell according to residing for base station determines the first running time-frequency resource；

Mode two：First running time-frequency resource is configured in the following manner by base station：Base station notifies in MIB and/or SIB One running time-frequency resource；

Mode three：A part in first running time-frequency resource determined by predefined mode, the side that remainder is configured by base station Formula determines.

The time-domain resource being located according to the publicly-owned message of all or part and/or frequency domain resource in for aforesaid way one determines The mode of the first running time-frequency resource, in the optional embodiment of the present embodiment, can be realized in the following way：It is all Or the antenna port and/or the corresponding pattern of antenna port of corresponding first reference signal of the publicly-owned message in part is by all or portion The type of publicly-owned message is divided to determine.

It should be noted that the antenna port of the first reference signal being related in the present embodiment and/or antenna port correspondence Pattern be predefined or base station configuration.Wherein, in the antenna port and/or antenna port of the first reference signal When corresponding pattern is that base station configures, including the antenna port comprising reference signal and/or antenna in MIB and/or SIB The corresponding drawing information in port.

In another alternative embodiment of the present embodiment, the method for the present embodiment can also include：When base station passes through second Frequency resource sends the second reference signal.

It should be noted that in the optional embodiment of the present embodiment, the corresponding subframe of the second running time-frequency resource is following At least one：Subframe that subframe that the MIB is located, master sync signal PSS/ auxiliary synchronous signals SSS are located, multicast/ Multicast single-frequency network network MBSFN sub-frame.And in independent operation standalone scenes, second running time-frequency resource is described In subframe, corresponding symbol is one or more symbol in front four symbols of subframe.

Alternatively, in the subframe, the corresponding symbol of the second running time-frequency resource is one or more symbol in following symbol： First symbol, second symbol and third last symbol in each time slot of subframe；Front four symbols of subframe.

Alternatively, in MBSFN sub-frame, the corresponding symbol of the second running time-frequency resource is each symbol in MBSFN regions Number, or the symbol of the odd number index in MBSFN regions, or the symbol of the even number index in MBSFN regions Number.

Wherein, can realize in the following way the step of the method：Some or all days in N number of antenna port On line end mouth, base station sends the second reference signal by the second running time-frequency resource.

It should be noted that for the second running time-frequency resource and the first running time-frequency resource that are related in the present embodiment are not overlapped.

Additionally, second running time-frequency resource is determined according to the mode of at least one of：Base station sends descending letter to designated terminal Number time-domain resource and/or frequency domain resource；Base station sends the time domain money of Physical Downlink Shared Channel PDSCH to first terminal Source and/or frequency domain resource；Base station sends the time-domain resource and/or frequency domain resource of Downlink Control Information to second terminal.

And second running time-frequency resource is determined always according at least one of：The number of repetition of PDSCH, Downlink Control Information Number of repetition, the form of Downlink Control Information, the scheduling Downlink Control Information of PDSCH, designated terminal/first terminal The type or transmission mode of/second terminal.

Wherein, the Downlink Control Information of scheduling PDSCH includes：Transmission is included in Downlink Control Information DCI The configured information of the second reference signal is sent in the time-domain resource and/or frequency domain resource of PDSCH.

For the antenna port and/or the corresponding pattern of antenna port of the second reference signal being related in the present embodiment also may be used Be default or base station configuration.

Can be true in the following manner for the corresponding default pattern of the antenna port and/or antenna port of the second reference signal It is fixed：The corresponding pattern of antenna port and/or antenna port of the second reference signal is determined according at least one of by base station： The type or transmission mode of designated terminal/second terminal UE described in the first terminal UE/；The number of repetition of PDSCH； The number of repetition of Downlink Control Information；The form of Downlink Control Information；The preamble sent during terminal Stochastic accessing.

And before base station sends downstream signal to designated terminal, or the base station sends PDSCH to the first terminal Before, or the base station to the second terminal send Downlink Control Information before, method also includes：Base station is to specified end End and/or first terminal and/or second terminal send DCI or the first high-level signaling, wherein, DCI or first high-rise Signaling is carried to indicate to send in terminal and sending second with reference to letter in the time-domain resource and/or frequency domain resource of downstream signal Number configured information.

For the corresponding pattern of antenna port and/or antenna port of the second reference signal is by way of at least one of Configuration：In SIB notify, in the first high-level signaling or in DCI notify, in the second high-level signaling notify, Notify in the accidental access response RAR received when designated terminal or first terminal or second terminal Stochastic accessing or message.

In addition, the corresponding resource location of the second running time-frequency resource is the RE, set S in multiple Resource Unit RE set S In RE include：

The 1st, the 2nd in each time slot and 4 RE that the frequency domain interval on the 3rd symbol reciprocal is 2 RE, The initial RE positions of 4 RE are determined by base station cell mark；

When the cyclic prefix CP of symbol is normal CP, the 3rd in each time slot, the 4th, the 6th and the 7th On individual symbol for the 1st, the 2nd, the 6th, the 7th, the 11st and the 12nd RE；

The Cyclic Prefix of symbol for extension CP when, the 2nd on two symbols of the inverse in even timeslots, the 5th, 8th, the 11st RE, the 3rd on two symbols of the inverse in odd numbered slots, the 6th, the 9th, the 12nd Individual RE；

Wherein, symbol starts sequence from 1 sequentially in time, and the RE in set S is minimum to most from frequency according to frequency High order starts sequence from 1.

In practical application, the available RE of CRS is not limited to above-mentioned RE positions, such as can be with enterprising in other RE Row pilot tone is encrypted.

Fig. 2 is the flow chart of the method for reseptance of reference signal according to embodiments of the present invention, as shown in Fig. 2 the method Step includes：

Step S202：Terminal receives the first reference letter that base station is sent by N number of antenna port on the first running time-frequency resource Number, the first running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

The method of the present embodiment also includes：The terminal receives the second reference signal that base station is sent by the second running time-frequency resource.

Wherein, can realize in the following way the step of the method：Part of the terminal in N number of antenna port or On all antenna ports, the second reference signal that base station is sent by the second running time-frequency resource is received.

And second running time-frequency resource is determined always according at least one of：The number of repetition of PDSCH, Downlink Control Information Number of repetition, the form of Downlink Control Information, the scheduling Downlink Control Information of PDSCH, designated terminal/the first The type or transmission mode of terminal/second terminal.

Can be true in the following manner for the corresponding default pattern of the antenna port and/or antenna port of the second reference signal It is fixed：The corresponding pattern of antenna port and/or antenna port of the second reference signal is determined according at least one of by base station： The type or transmission mode of designated terminal or first terminal or second terminal；The number of repetition of PDSCH；Descending control letter The number of repetition of breath；The form of Downlink Control Information；The preamble sent during terminal Stochastic accessing.

And before base station sends downstream signal to designated terminal, or the base station sends PDSCH to the first terminal Before, or the base station to the second terminal send Downlink Control Information before, the method for the present embodiment also includes：Base Stand and send DCI or the first high-level signaling to designated terminal and/or first terminal and/or second terminal, wherein, DCI or The first high-level signaling of person is carried to indicate to be sent in terminal and sending in the time-domain resource and/or frequency domain resource of downstream signal The configured information of the second reference signal.

For the corresponding pattern of antenna port and/or antenna port of the second reference signal is by way of at least one of Configuration：In SIB notify, in the first high-level signaling or in DCI notify, in the second high-level signaling notify, Designated terminal receives the accidental access response RAR or message received during the terminal Stochastic accessing of the second reference signal Middle notice.

Through the above description of the embodiments, those skilled in the art is can be understood that according to above-described embodiment Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing There is the part that technology contributes embody in the form of software product, the computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), use so that a station terminal equipment (can including some instructions Being mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.

Additionally provide a kind of dispensing device of reference signal in the present embodiment, the device is used to realizing above-described embodiment and excellent Embodiment is selected, repeating no more for explanation had been carried out.As used below, term " module " can be realized pre- Determine the combination of the software and/or hardware of function.Although the device described by following examples is preferably with software realizing, But hardware, or the realization of the combination of software and hardware is also may and to be contemplated.

Fig. 3 is the structured flowchart of the dispensing device of reference signal according to embodiments of the present invention, as shown in figure 3, being applied to Base station side, the device include：First sending module 32, for being sent out by N number of antenna port on the first running time-frequency resource The first reference signal is sent, the first running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

Fig. 4 is the alternative construction block diagram one of the dispensing device of reference signal according to embodiments of the present invention, as shown in figure 4, The device also includes：Second sending module 42, is of coupled connections with the first sending module 32, for being provided by the second time-frequency Source sends the second reference signal.

Fig. 5 is the structured flowchart of the reception device of reference signal according to embodiments of the present invention, and the device is applied to end side, As shown in figure 5, the device includes：First receiver module 52, passes through N on the first running time-frequency resource for receiving base station The first reference signal that individual antenna port sends, the first running time-frequency resource are predefined and/or base station configuration, wherein, N For positive integer.

Fig. 6 is the alternative construction block diagram one of the reception device of reference signal according to embodiments of the present invention, as shown in fig. 6, The device includes：Second receiver module 62, is of coupled connections with the first receiver module 52, for receiving base station by second The second reference signal that running time-frequency resource sends.

The present invention is illustrated with reference to the alternative embodiment of the present invention；

Alternative embodiment one

In this alternative embodiment, there is provided a kind of method for sending reference signal, the reference signal is by N number of antenna end Mouth is transmitted, wherein, the N is more than or equal to 1；Additionally, the reference signal only disappears publicly-owned message or part are publicly-owned Transmit in ceasing corresponding time-domain resource and/or frequency domain resource.The publicly-owned message includes at least one of：MIB、SIB、 Beep-page message, the Downlink Control Information of scheduling paging message, RAR, the Downlink Control Information of scheduling RAR.

To illustrate by taking CRS as an example below, it should be noted that this alternative embodiment is not limited to CRS in practical application.

Example one：

CRS is only sent in the subframe for sending MIB, is not sent in other subframes, in the subframe for sending CRS, The CRS is that full bandwidth sends.Or, further, CRS is only sent in the frequency domain resource for sending MIB, Such as existing LTE system, sends in the PRB of 6, MIB Zhi centers, then CRS is only the 6 of MIB places Send on individual PRB.The subframe being related in the present embodiment one can be the LTE subframes in correlation technique, or M- subframes in arrowband LTE system, wherein, each M- subframe is made up of 6 continuous subframes, for M- subframes, CRS can be sent in all subframes of M- subframes, it is also possible to send in the subframe of part, a PRB is taken on frequency domain； Wherein, CRS can be used for the demodulation of MIB, it is also possible to for the measurement of UE；Subframe that UE is located in MIB or Measure in person's M- subframes.

For example, in arrowband LTE, MIB is sent once per 10 M- subframes, in the M- subframes for sending MIB, is accounted for Full whole M- subframes are transmitted, then CRS is sent in the M- subframes for sending MIB.

The corresponding pattern of antenna port and/or antenna port of CRS can be default or eNB is notified.Here The corresponding pattern of sending port refer to RE positions that transmission antenna port is taken in a scheduling unit.Such as, scheme 7 be the schematic diagram that density is increased on 2 symbols and frequency domain in a time domain according to alternative embodiment of the present invention, such as RE positions in the PRB marked in Fig. 7 are the pattern of antenna port 0.The antenna port and/or day of CRS The corresponding pattern of line end mouth can be default, and the antenna port of such as CRS is preset as a port, and pattern is also pre- If.It is or the corresponding pattern of antenna port and/or antenna port of CRS can also be that eNB is notified, such as right The CRC of MIB adds different scramblers to indicate the number of the antenna port of CRS, or notifies in SIB.

It should be noted that the sending method in this alternative embodiment is not limited to LTE system and arrowband LTE system.

Example two：

CRS is only sent in the subframe for sending MIB and SIB, is not sent in other subframes；Wherein, CRS can For the demodulation of MIB and SIB, it is also possible to for the measurement of UE.Subframe that UE is located in MIB/SIB or Measure in M- subframes.Or, further, CRS is only sent in the frequency domain resource for sending MIB and SIB, In the transmission subframe of MIB and SIB, CRS on the PRB outside MIB and SIB, is not sent.

The corresponding pattern of antenna port and/or antenna port of CRS can be default or eNB is notified.

Example three：

CRS is only sending MIB, SIB, beep-page message, the Downlink Control Information of scheduling paging message, RAR, scheduling Send in the subframe and/or frequency domain resource of the Downlink Control Information of RAR；Wherein, CRS can be used for the demodulation of above- mentioned information, Can be used for the measurement of UE.The transmission subframe and PRB of such as generally MIB, SIB is fixed, and UE can be Measure in these subframes.

Further, transmission antenna port and/or the antenna end of first reference signal on the first running time-frequency resource The corresponding pattern of mouth is determined by the type of message of the publicly-owned message of all or part.Send such as in MIB and SIB Antenna port be antenna port 0 and 1, in other publicly-owned message, the such as descending control of beep-page message, scheduling paging message In the subframe that information processed, RAR, the Downlink Control Information of scheduling RAR send, the antenna port of transmission is 0,1,2, 3。

Alternative embodiment two：

In this alternative embodiment two, it is predefined that part sends the subframe of CRS, and part sends the subframe of CRS is Configuration, such as CRS is sent in MIB and all SIB or part SIB, is such as only sent in SIB-1. In other subframes, which subframe sends CRS and notifies in SIB, notifies such as in SIB-1, and notice signaling can be One bitmap, is such as the bitmap of all M- subframes on a M frame." 1 " correspondence in Bitmap sends The M- subframes of CRS.

The corresponding pattern of antenna port and/or antenna port of CRS can be default or eNB is notified.Enter one Step ground, can include antenna port and/or the corresponding drawing information of antenna port in MIB and/or SIB.Such as in SIB-1 In indicate which in 0,1,2,3 antenna port of the CRS of configuration be comprising 4bit information.

Further, the antenna port and/or the corresponding pattern of antenna port of the CRS of predefined CRS and configuration can be with It is identical, can also be different, can also be part identical.Such as in MIB and all SIB or part The antenna port of the CRS sent in SIB is 0 and 1, the antenna port of the CRS sent in the CRS subframes of configuration For 0,1,2,3, or the antenna port of the CRS sent in the CRS subframes of configuration is 2,3.Antenna port Corresponding pattern can also be different, such as similarly for antenna port 0, what the corresponding pattern of antenna port of configuration was included The RE numbers that the unnecessary predefined CRS of RE numbers is included.

Different cells can adopt different CRS to configure, it is to avoid PDSCHs of the adjacent area CRS to cell edge UE Interference.CRS configuration informations can be interacted between eNB, such as eNB is matched somebody with somebody by the CRS of mutual this cell of X2 oral sexes Confidence ceases.

Alternative embodiment three：

In this alternative embodiment three, the subframe for sending CRS can be predefined, be such as predefined in index for 0, 4th, CRS is sent in 5,9 M- subframes, do not send in other M- subframes.

Further, the subframe of the transmission CRS of a cell can also be determined by cell ID.Such as will index for 0, 4th, 5,9 M- subframes are renumbered as 0,1,2,3, then the M- subframes of each cell transmission CRS are corresponding again Index after numbering

Further, the subframe of the transmission CRS of a cell can be predefined with a part, and a part is according to little Area's mark determines, such as assumes in arrowband LTE system that the index of each cell is necessarily sent for 0 M- subframes CRS, another index for sending the M- subframes of CRS are determined that by cell ID such as another sends the M- of CRS The index of subframe is

Alternative embodiment four：

In this alternative embodiment four, in arrowband LTE, there is provided a kind of collocation method of CRS, this optional enforcement The method that example is proposed can also be used for other systems.

UE in arrowband LTE system is indoor static UE, it can be considered to reduce the time domain density of CRS, Increase the resource for PDSCH transmission.

For the M- subframes for sending CRS, such as it is the transmission determined according to the method for above-mentioned alternative embodiment one to three The M- subframes of CRS, send CRS in each subframe that M- subframes are included, and the CRS in each subframe is in time domain Density compare existing LTE system for be reduce.Such as in LTE system, in a subframe, there are 4 symbols There is the CRS of antenna port 0 on number, in arrowband LTE system, can be only in 3 or 2 or 1 symbol Upper transmission CRS.Fig. 8 a～8c is according to this alternative embodiment transmission antenna end on 2 symbols or on 1 symbol The schematic diagram of the CRS of mouth 0, for Fig. 8 c, CRS are only sent in the region of PDCCH, PDCCH can be adopted CRS is demodulated, and other signals can be demodulated using DMRS, and for publicly-owned message, the pre-coding matrix of DMRS can Being default.

Further, the frequency domain density of CRS can in order to ensure UE demodulation performances, be increased.Preferably, can be with The RE of existing multiple antenna ports is used for into an antenna port and sends CRS.For example, the antenna port in LTE 0 and the RE of CRS of antenna port 1 is all used for the CRS of transmission antenna port 0, CRS only one of which antenna port 0. As shown in fig. 7, density of the reference signal on frequency domain is changed into 2 times of existing LTE system, reference signal sequence can lead to Cross following formula to be defined：

Wherein For cell ID,For The number of the maximum PRB that downstream packets contain；

Alternative embodiment five：

In this alternative embodiment five, in arrowband LTE, there is provided a kind of collocation method of CRS, it should be noted that The method that this alternative embodiment is proposed can also be used for other systems.

UE in arrowband LTE system is indoor static UE, and the time domain that therefore, it can consider to reduce CRS is close Degree, increases the resource for PDSCH transmission.

For the M- subframes for sending CRS, in the part subframe that M- subframes are included, there is CRS, no CRS in the subframe of part, In a M- subframe, only part subframe sends CRS, such as in one M- subframe, only subframe 0,2,4 Send CRS.CRS in each subframe can be that existing CRS is designed, or newly-designed CRS, for example, The allocation plan of the CRS in subframe in alternative embodiment four.

Alternative embodiment six：

For the UE for needing coverage enhancement, such as close to the sensor etc. of basement, its covering is often very poor, to UE The signal of transmission generally requires the requirement that substantial amounts of repetition could meet BLER.A method for reducing number of repetition is to increase Plus the density of reference signal, and if the UE of the indivedual coverage enhancements in for system increases the density of CRS, for whole For individual system, very big waste can be caused.Therefore a kind of sending method of CRS is provided in the present embodiment.

In this alternative embodiment, the transmission of CRS is divided into two parts, i.e. the first reference signal and the second reference signal.Send out The running time-frequency resource of the first reference signal is sent to be referred to as the first running time-frequency resource, the first running time-frequency resource is predefined or half is quiet State configuration, the first reference signal is sent by N number of antenna port.Send such as according to the method for above-described embodiment, Such as send in the M- subframes that MIB is located, in the M- subframes that MIB is located, a transmission antenna port 0, and Only send on two symbols in time domain；Or according to the prior art transmission of similar LTE, such as non-MBSFN's Send in M- subframes, in all subframes in each M- subframe, CRS is sent according to prior art.Send second to refer to The running time-frequency resource of signal is the second running time-frequency resource.

The antenna port of second reference signal can be entirely different with the antenna port of first reference signal, also may be used It is identical with part.The transmission antenna port of such as the first reference signal is 0,1, sends the antenna of second reference signal Port is 2,3.

Further, during the antenna port of second reference signal can be the antenna port of first reference signal Part or all antenna ports, i.e., on one or more antenna port of N number of antenna port, send second Reference signal.One or more antenna port of N number of antenna port is default or eNB is notified.

Second running time-frequency resource is determined from base station to time-domain resource and/or frequency domain resource that designated terminal sends downstream signal.Than Send as the second reference signal sends full bandwidth in the time-domain resource of downstream signal in the designated terminal, or only described Designated terminal sends, and such as described designated terminal is in PRB#3～7 of subframe #3 Upper transmission, then the second reference signal is only sent on PRB#3～7 of subframe #3.Here designated terminal is specified type Terminal, be such as the terminal of low cost, or to need the terminal of coverage enhancement；Or designated terminal is to specify biography Terminal under terminal under terminal under defeated pattern, such as coverage enhancement pattern, or big coverage enhancement pattern, Huo Zhewei Terminal in high speed mode etc..In practical application, the example above is not limited to.Or designated terminal can also be to have received The terminal that eNB is notified, such as eNB notify the time domain money that eNB described in UE can be located in the downstream signal of the UE The second reference signal is sent on source and/or frequency domain resource.Such as the UE in coverage enhancement pattern, in the son which transmits Frame, except sending the CRS on the first running time-frequency resource, can also send CRS on the second running time-frequency resource.When assuming first CRS in frequency resource has the individual antenna ports of N (>=1), then in the subframe that the UE of coverage enhancement is transmitted, the On two running time-frequency resources, CRS is sent on all or part of antenna port of N number of antenna port.So, covering In the transmission subframe of the UE of enhancement mode, the density of the reference signal of part or all of CRS antenna ports increased, Improve the demodulation performance of UE under coverage enhancement.In practical application, the UE being not limited under coverage enhancement pattern.Enter one Step ground, the second running time-frequency resource and the first running time-frequency resource are not overlapped.

Further, in transmission to coverage enhancement UE (UE under coverage enhancement pattern is not limited in practical application) Before the second reference signal is sent on frame, eNB can pass through high-level signaling or DCI notifies that eNB can be in the second time-frequency Reference signal is sent in resource.UE is notified such as in SIB, and which can be in the son at the downstream signal of coverage enhancement UE place On frame on the second running time-frequency resource sending signal, so, coverage enhancement UE receive signal when can receive first simultaneously when Reference signal in frequency resource and the second running time-frequency resource.By 1bit signalings notifying such as in SIB, " 1 " represents ENB can send reference signal on the second running time-frequency resource in the subframe that downstream signal is sent to coverage enhancement UE, " 0 " Represent that eNB will not send reference signal on the second running time-frequency resource in the subframe that downstream signal is sent to coverage enhancement UE. Or, eNB can also notify certain UE in RRC signaling, and which can be in the subframe that the downstream signal of UE is located the Reference signal is sent on two running time-frequency resources.

Or, the second running time-frequency resource can also be determined by the PDSCH sent to UE (hereinafter referred to a UE).Enter One step ground, the second running time-frequency resource is determined according to the number of repetition of the PDSCH, such as when the repetition of the PDSCH During the thresholding that number of times is preset more than/configured, eNB then can send second in the running time-frequency resource that the PDSCH is located Reference signal.Or, can be in the PDSCH of UE comprising eNB in the Downlink Control Information DCI of scheduling PDSCH The configured information of reference signal is sent in the subframe at place on the second running time-frequency resource.Or, the second running time-frequency resource is according to institute Type/the transmission mode for stating UE determines that the type/transmission mode of the UE is as defined above to be stated, and such as increases for covering UE under strong mode, eNB then can send the second reference signal in the running time-frequency resource that the PDSCH is located.Enter one Step ground, before sending the second reference signal in the transmission subframe to the PDSCH of the UE, eNB can lead to Cross high-level signaling or DCI notifies that eNB can send reference signal on the second running time-frequency resource.

Or, the second running time-frequency resource can also be determined by the Downlink Control Information sent to UE (hereinafter referred to the 2nd UE). Further, the second running time-frequency resource according to the number of repetition of the Downlink Control Information determine, such as when the descending control During the thresholding that the number of repetition of information is preset more than/configured, eNB then can be at Downlink Control Information place The second reference signal is sent in frequency resource.Or, determined according to the form of the Downlink Control Information, such as under described During the thresholding that the bit number that row control information is included is preset more than/configured, eNB then can be in the descending control letter The second reference signal is sent in the running time-frequency resource that breath is located.Or, type/transmission of second running time-frequency resource according to the UE Pattern determines that the type/transmission mode of the UE is as defined above to be stated, such as the UE under coverage enhancement pattern, ENB then can send the second reference signal in the running time-frequency resource that the Downlink Control Information is located.Further, to institute Before the second reference signal is sent in the transmission subframe of the Downlink Control Information for stating UE, eNB can be by high-rise letter Order or DCI notify that eNB can send reference signal on the second running time-frequency resource.

The corresponding pattern of antenna port and/or antenna port of the second reference signal can be it is default, such as base station according to The type of designated terminal/the 2nd UE described in a UE/, determines the antenna port and/or antenna end of the second reference signal The corresponding pattern of mouth.Such as designated terminal is the terminal under coverage enhancement, then eNB is using corresponding day during coverage enhancement Line end mouth and/or the corresponding pattern of antenna port are sending CRS.Or, according to the PDSCH or described to UE Determining, such as number of repetition is bigger, and pilot tone is closeer for the number of repetition of the Downlink Control Information of transmission, i.e. each scheduling is single The RE numbers for being used for second reference signal in unit are more.Or, according to the descending control sent to UE The form of information processed determines that the bit number that such as described Downlink Control Information is included is more, and pilot tone is closeer.Or, root The preamble sent during according to the terminal Stochastic accessing determines.Each preamble can correspond to described second with reference to letter Number the corresponding pattern of antenna port and/or antenna port.

The corresponding pattern of antenna port and/or antenna port of the second reference signal can also be configuration, such as in SIB Middle notice, or in above-mentioned instruction eNB can send the first high-level signaling of reference signal on the second running time-frequency resource or Notify in DCI, or notify in another high-level signaling for be different from first high-level signaling.Or, it is also possible to Notify in the RAR received during UE Stochastic accessings or message four.

Alternatively, in order to ensure compatibility, the second running time-frequency resource position can be in the position of the CRS from correlation technique Middle selection, that is to say, that the second running time-frequency resource position can be the subset of following RE set S：In each time slot Frequency domain interval on 1, the 2nd and 3rd symbol reciprocal is 4 RE of 2 RE, the initial RE positions of RE Put and determined by cell ID.Original position isIndividual RE, wherein, symbol is sequentially in time Start sequence from 1, RE starts sequence from 1 to highest order from frequency is minimum according in frequency.Fig. 9 is according to this The schematic diagram one of the RE set S of invention alternative embodiment, as shown in figure 9, in the corresponding RERE set of grid lines RE。

For example, Figure 10 is the first reference signal of transmission and the signal of the second reference signal according to alternative embodiment of the present invention Figure, as shown in Figure 10, a M- subframe includes 6 subframes, and each subframe includes a PRB, in each M- In each subframe of frame, CRS is being sent on 0 corresponding RE of antenna port in the prior art, antenna port is 0, In the subframe of coverage enhancement UE transmission, in the prior art on 0 and 1 corresponding RE positions of antenna port, all in day CRS is sent on line end mouth 0.

Or, in each subframe of each M- subframe, send antenna port 0 of the prior art and antenna port 1 On CRS, coverage enhancement UE transmit subframe, all in antenna on 0 and 2 corresponding RE positions of antenna port CRS is sent on port 0, antenna port all sends CRS on antenna port 1 on 1 and 3 corresponding RE positions.

Further, for coverage enhancement UE, in order to further increase the density of CRS, ensure compatible again, second Running time-frequency resource can be the subset of the RE set S1 that existing DMRS is located, i.e., be located in existing DMRS RE is upper to send CRS on all or part of antenna port of N number of antenna port.The RE collection that existing DMRS is located It is combined into：

During normal CP, on the 3rd in each time slot, the 4th, the 6th and the 7th symbol for the 1st, 2nd, the 6th, the 7th, the 11st and the 12nd RE.

During extension CP, the 2nd, the 5th, the 8th, the 11st on two symbols of the inverse in even timeslots RE, the 3rd, the 6th, the 9th, the 12nd RE on two symbols of the inverse in odd numbered slots.

Wherein, symbol starts sequence from 1 sequentially in time, and RE is according to minimum to highest order from frequency in frequency Start sequence from 1.

The schematic diagram one of RE set S1 when Figure 11 is the normal CP according to alternative embodiment of the present invention, as shown in figure 11, RE in the corresponding RERE set S1 of grid lines.RE when Figure 12 is the normal CP according to alternative embodiment of the present invention The schematic diagram two of set S1, as shown in figure 12, the RE in the corresponding RERE set S1 of grid lines.

Figure 13 is the optional schematic diagram two of the RE set S according to alternative embodiment of the present invention, as shown in figure 13, every In each subframe of individual M- subframes, 0 corresponding position of antenna port all sends CRS, transmits in the UE of coverage enhancement Subframe, uplink signal-channel quality measurement DMRS sends CRS on antenna port 0 on corresponding RE positions.

The is sent in the transmission subframe to coverage enhancement UE (UE being not limited in practical application under coverage enhancement pattern) Before two reference signals, by high-level signaling, eNB can notify that eNB can send reference signal on the second running time-frequency resource. Further, antenna port information of the high-level signaling also including the second reference signal.Such as assume sending out for the first reference signal Antennas port is the bitmap that 4, respectively antenna port 0,1,2 and 3, eNB can use 4bit in high-level signaling To notify the antenna port of the second reference signal, such as represent that the transmission antenna port of the second reference signal is with " 1100 " Antenna port 0 and antenna port 1. are coverage enhancement UE's (UE under coverage enhancement pattern is not limited in practical application) In transmission subframe, the corresponding pattern in the corresponding second reference signal transmission antenna port of antenna port can be default.Or Person, the corresponding pattern of the corresponding second reference signal sending port of antenna port can also be notified in high-level signaling, such as Multiple patterns are predefined, eNB is notified that the index of pattern.

Second reference signal can also be sent in PDSCH, also, in the Downlink Control Information DCI of scheduling PDSCH In comprising eNB can UE PDSCH be located running time-frequency resource on send reference signal configured information.Further, Antenna port information in DCI also including the second reference signal, it is similar with above-mentioned advice method.Send in PDSCH In subframe, the corresponding pattern of antenna port can be default, or can also notify in DCI.With above-mentioned notice side Formula is similar to.

In order to meet the demand of difference UE in system, for different UE, the port and/or port of the second reference signal The pattern of corresponding reference signal can be different.Such as coverage enhancement UE and high speed UE are using different the The port of two reference signals and pattern.Such as relative to coverage enhancement UE, the pattern of the antenna port of high speed UE is also needed To encrypt on frequency domain.

ENB determines the port and/or pattern for sending the second reference signal according to UE state in which.

Alternative embodiment seven：

The present embodiment provides a kind of sending method of pilot tone.Existing CRS can be encrypted.By pilot tone following At least one subframe on send：The transmission subframe of MIB, the transmission subframe of PSS/SSS and MBSFN sub-frame.

In the subframe that MIB or PSS/SSS is located, pilot tone is sent on remaining all RE or part RE. Figure 14 is the schematic diagram sent in the subframe that MIB or PSS/SSS is located according to the pilot tone of alternative embodiment of the present invention, In Figure 14, latticed RE is the RE for sending CRS, and the RE of point-like is the pilot tone.As shown in figure 14, CRS Antenna port number is sent on the symbol for do not have CRS for 4, SSS, then pilot tone is in addition to PDCCH region Send on remaining RE on the symbol that CRS is located, i.e., frequency domain encryption has been carried out to CRS.That is, for just Normal CP, first symbol of each time slot of the pilot tone in the subframe, second symbol and third last symbol Send in one or more symbol in number.On the symbol, the RE numbers that the pilot tone takes are 2,4 and 8 In one.What Figure 14 was given is the situation that the RE numbers for taking are 8.Or, it is also possible to carry out in a sub- frame in Time domain encryption, such as, it is assumed that the transmission antenna port of CRS is 0 and 1, then can be in antenna port 2 and 3 correspondences RE on transmission antenna port be 0 and 1 CRS, so carried out time domain encryption to CRS, increased coverage enhancement Under demodulation performance.Or, can be so that above two mode to be combined, time domain and frequency domain are all encrypted.Furthermore it is also possible to use RE on other symbols outside SSS sends the pilot tone, the 3rd and the 4th in such as Fig. 4 symbol.Because SSS For rear 9 symbols, then the RE on the 3rd and the 4th is remaining RE, it is also possible to transmitted with these RE described Pilot tone, increases density.

For MBSFN sub-frame, the MBSFN regions of MBSFN sub-frame are no CRS, can be in MBSFN Region sends CRS, i.e., carry out time domain encryption to CRS.Such as can be on all of symbol in MBSFN regions all Pilot tone is sent, or pilot tone is sent every a symbol, send such as on the symbol of even number index, or in odd number rope Send on the symbol for drawing, the index of the symbol is that all symbols in a subframe are started from scratch volume sequentially in time Index after number.Here, MBSFN regions are the part outside the region that PDCCH takes in MBSFN sub-frame, Such as the first two symbol is PDCCH region, then MBSFN regions are all RE on symbol below.Figure 15 It is the schematic diagram sent in MBSFN sub-frame according to the pilot tone of alternative embodiment of the present invention, is one as shown in figure 15 MBSFN sub-frame, PDCCH region are two symbols, and symbol below is MBSFN regions.The transmission day of CRS Line port number is 2, and pilot tone is sent in the MBSFN regions of MBSFN sub-frame, and one, interval symbol sends.

Alternatively, for independent operation standalone scenes, system can not send PDCCH, then can utilize PDCCH region send on pilot tone, i.e. all or part of symbol in front four symbols to send, corresponding symbol Index as 0,1,2,3, here by all symbols of a subframe sequentially in time from zero-emission sequence.Can be in PDCCH Pilot tone is sent on all RE in region, or only pilot tone can also be sent on the RE of part.

In above-mentioned scene, the antenna port for sending pilot tone can be identical with the CRS sent in system, or can be with It is the section ports of CRS, the transmission antenna port of such as CRS is 0,1,2,3, pilot tone transmission antenna port is 0 With 1. or can also be more than CRS transmission antenna port, the transmission antenna port of such as CRS is 0 and 1, pilot tone Transmission antenna port be 0,1,2,3.

The acquisition of the pattern of pilot tone can be default or eNB configurations, the signaling and other embodiment class of configuration Seemingly.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can It is used for the program code for performing following steps to be arranged to store：

S1, base station on the first running time-frequency resource of predefined and/or base station configuration send first by N number of antenna port and join Signal is examined, wherein, N is positive integer；

Alternatively, in the present embodiment, above-mentioned storage medium can be including but not limited to：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, Magnetic disc or CD etc. are various can be with the medium of store program codes.

Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment Example, the present embodiment will not be described here.

Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general Realizing, they can concentrate on single computing device computing device, or be distributed in multiple computing devices and constituted Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to by they Storage in the storage device by computing device performing, and in some cases, can be holding different from order herein The shown or described step of row, or they are fabricated to each integrated circuit modules respectively, or will be many in them Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combine with software.

The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the technology of this area For personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made it is any Modification, equivalent, improvement etc., should be included within the scope of the present invention.

Claims

1. a kind of sending method of reference signal, it is characterised in that include：

Base station sends the first reference signal, the first time-frequency money by N number of antenna port on the first running time-frequency resource Source is predefined and/or base station configuration, wherein, N is positive integer.

2. method according to claim 1, it is characterised in that determine the mode of first running time-frequency resource include with It is one of lower：

Predefined first running time-frequency resource determines at least one of in the following manner：It is public according to all or part There are time-domain resource that message is located and/or frequency domain resource to determine first running time-frequency resource, wherein, it is described publicly-owned to disappear Breath includes：Master Information Block MIB, system information block SIB, beep-page message, the descending control for dispatching the beep-page message Information processed, RAR, the Downlink Control Information for dispatching the RAR；The cell ID of cell according to residing for the base station Determine first running time-frequency resource；

First running time-frequency resource is configured in the following manner by the base station：The base station is in MIB and/or SIB In notify first running time-frequency resource；

By the predefined mode, a part in first running time-frequency resource determines that remainder is by the base station The mode of configuration determines.

3. method according to claim 2, it is characterised in that it is described according to the publicly-owned message of all or part be located when Domain resource and/or frequency domain resource determine that the mode of first running time-frequency resource includes：

The antenna port and/or the antenna port of corresponding first reference signal of the publicly-owned message of all or part Corresponding pattern is determined by the type of the publicly-owned message of all or part.

4. method according to claim 1 and 2, it is characterised in that the antenna port of first reference signal and/ Or the corresponding pattern of the antenna port is predefined or described base station configuration.

5. the method according to claim 2 or 4, it is characterised in that first reference signal antenna port and / or the antenna port corresponding pattern when being that the base station configures, including：Institute is included in MIB and/or SIB State the antenna port and/or the corresponding drawing information of the antenna port of reference signal.

6. method according to claim 1, it is characterised in that methods described also includes：

The base station sends the second reference signal by the second running time-frequency resource.

7. method according to claim 6, it is characterised in that

The corresponding subframe of second running time-frequency resource is at least one of：The subframe at MIB places, master sync signal The subframe at PSS/ auxiliary synchronous signals SSS places, multicast/multicast single-frequency network network MBSFN sub-frame.

8. method according to claim 7, it is characterised in that

In independent operation standalone scenes, second running time-frequency resource corresponding symbol in corresponding subframe For one or more symbol in front four symbols of the subframe.

9. method according to claim 7, it is characterised in that

In the subframe, one or more in corresponding symbol is following symbol of second running time-frequency resource Symbol：

First symbol, second symbol and third last symbol in each time slot of the subframe；

Front four symbols of the subframe.

10. method according to claim 7, it is characterised in that

In the MBSFN sub-frame, the corresponding symbol of second running time-frequency resource is each in MBSFN regions The symbol of the odd number index in symbol, or MBSFN regions, or the even number index in MBSFN regions Symbol.

11. methods according to claim 6, it is characterised in that the base station sends second by the second running time-frequency resource and joins Examining signal includes：

On some or all antenna ports in N number of antenna port, the base station passes through second time-frequency Resource sends second reference signal.

12. methods according to claim 6, it is characterised in that second running time-frequency resource and first running time-frequency resource Do not overlap.

13. methods according to claim 6 or 11, it is characterised in that second running time-frequency resource according to it is following at least One of mode determine：

The base station sends the time-domain resource and/or frequency domain resource of downstream signal to designated terminal；

The base station sends the time-domain resource and/or frequency domain resource of Physical Downlink Shared Channel PDSCH to first terminal；

The base station sends the time-domain resource and/or frequency domain resource of Downlink Control Information to second terminal.

14. methods according to claim 13, it is characterised in that also include：

Second running time-frequency resource is determined according at least one of：The number of repetition of the PDSCH, it is described under The number of repetition of row control information, the form of the Downlink Control Information, the descending control for dispatching the PDSCH The type or transmission mode of information, the designated terminal or the first terminal or the second terminal.

15. methods according to claim 14, it is characterised in that the Downlink Control Information of the scheduling PDSCH Including：

It is included in the Downlink Control Information DCI and sends in the time-domain resource and/or frequency domain resource of the PDSCH Send the configured information of second reference signal.

16. methods according to any one of claim 6 to 15, it is characterised in that the antenna of second reference signal Port and/or the corresponding pattern of the antenna port are default or described base station configurations.

17. methods according to claim 13 or 16, it is characterised in that the antenna port of second reference signal and / or the corresponding default pattern of the antenna port determine in the following manner：

The antenna port and/or the corresponding pattern of the antenna port of second reference signal by the base station according to At least one of determines：The type or transmission mould of the designated terminal or the first terminal or the second terminal Formula；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The Downlink Control Information Form；The preamble sent during the terminal Stochastic accessing.

18. methods according to claim 13, it is characterised in that send descending to the designated terminal in the base station Before signal, or before the base station sends PDSCH to the first terminal, or the base station is whole to described second Before end sends Downlink Control Information, methods described also includes：

The base station sends DCI or first high to the designated terminal or the first terminal or the second terminal Layer signaling, wherein, the DCI or first high-level signaling carry instruction and send descending letter in the terminal Number time-domain resource and/or frequency domain resource on send the second reference signal configured information.

19. methods according to claim 13 or 16, it is characterised in that the antenna port of second reference signal and / or the corresponding pattern of the antenna port configured by way of at least one of：Notify in SIB, first Notify in high-level signaling or in the DCI, notify in the second high-level signaling, in the designated terminal or described the Notify in the accidental access response RAR received when one terminal or the second terminal Stochastic accessing.

20. methods according to claim 6, it is characterised in that

The corresponding resource location of second running time-frequency resource is the RE in multiple Resource Unit RE set S, the collection The RE closed in S includes：

The 1st, the 2nd in each time slot and the frequency domain interval on the 3rd symbol reciprocal are the 4 of 2 RE The initial RE positions of individual RE, 4 RE are determined by base station cell mark；

The cyclic prefix CP of the symbol be normal CP when, the 3rd in each time slot, the 4th, the 6th On individual and the 7th symbol for the 1st, the 2nd, the 6th, the 7th, the 11st and the 12nd RE；

The Cyclic Prefix of the symbol for extension CP when, the 2nd on two symbols of the inverse in even timeslots, 5th, the 8th, the 11st RE, the 3rd on two symbols of the inverse in odd numbered slots, the 6th, 9th, the 12nd RE；

Wherein, the symbol sequentially in time from 1 start sequence, the RE in the set S according to frequency from Frequency is minimum to start sequence from 1 to highest order.

21. a kind of method of reseptances of reference signal, it is characterised in that include：

Terminal receives the first reference signal that base station is sent by N number of antenna port on the first running time-frequency resource, described First running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

22. methods according to claim 21, it is characterised in that determine the mode of first running time-frequency resource include with It is one of lower：

23. methods according to claim 22, it is characterised in that described to be located according to the publicly-owned message of all or part Time-domain resource and/or frequency domain resource determine that the mode of first running time-frequency resource includes：

24. methods according to claim 21 or 22, it is characterised in that the antenna port of first reference signal and / or the corresponding pattern of the antenna port be the configuration of predefined or described base station.

25. methods according to claim 22 or 24, it is characterised in that in the antenna port of first reference signal And/or the antenna port corresponding pattern is when being that the base station configures, including：Include in MIB and/or SIB The antenna port of the reference signal and/or the corresponding drawing information of the antenna port.

26. methods according to claim 21, it is characterised in that methods described also includes：

The terminal receives the second reference signal that the base station is sent by the second running time-frequency resource.

27. methods according to claim 26, it is characterised in that

28. methods according to claim 27, it is characterised in that

29. methods according to claim 27, it is characterised in that

In the subframe, the corresponding symbol of second running time-frequency resource is one or more symbol in following symbol Number：

Front four symbols of the subframe.

30. methods according to claim 27, it is characterised in that

31. methods according to claim 26, it is characterised in that the base station sends second by the second running time-frequency resource Reference signal includes：

The terminal is received and is passed through on some or all antenna ports of the base station in N number of antenna port Second running time-frequency resource sends second reference signal.

32. methods according to claim 26, it is characterised in that second running time-frequency resource and first time-frequency money Source does not overlap.

33. methods according to claim 26 or 31, it is characterised in that second running time-frequency resource according to it is following at least One of mode determine：

34. methods according to claim 33, it is characterised in that also include：

35. methods according to claim 34, it is characterised in that the Downlink Control Information of the scheduling PDSCH Including：

36. methods according to any one of claim 26 to 35, it is characterised in that the antenna of second reference signal Port and/or the corresponding pattern of the antenna port are default or described base station configurations.

37. methods according to claim 33 or 35, it is characterised in that the antenna port of second reference signal and / or the corresponding default pattern of the antenna port determine in the following manner：

38. methods according to claim 33, it is characterised in that send downstream signal to designated terminal in the base station Before, or before the base station sends PDSCH to the first terminal, or the base station to described second eventually Before end sends Downlink Control Information, methods described also includes：

39. methods according to claim 33 or 35, it is characterised in that the antenna port of second reference signal and / or the corresponding pattern of the antenna port configured by way of at least one of：Notify in SIB, first Notify in high-level signaling or in the DCI, notify in the second high-level signaling, the designated terminal or receive or Notify in the accidental access response RAR received when the first terminal or the second terminal Stochastic accessing.

40. methods according to claim 26, it is characterised in that

A kind of 41. dispensing devices of reference signal, are applied to base station side, it is characterised in that include：

First sending module, for sending the first reference signal by N number of antenna port on the first running time-frequency resource, First running time-frequency resource is predefined and/or base station configuration, wherein, N is positive integer.

42. devices according to claim 41, it is characterised in that determine the mode of first running time-frequency resource include with It is one of lower：

43. devices according to claim 42, it is characterised in that described to be located according to the publicly-owned message of all or part Time-domain resource and/or frequency domain resource determine that the mode of first running time-frequency resource includes：

44. devices according to claim 41 or 42, it is characterised in that the antenna port of first reference signal and / or the corresponding pattern of the antenna port be the configuration of predefined or described base station.

45. devices according to claim 42 or 44, it is characterised in that in the antenna port of first reference signal And/or the antenna port corresponding pattern is when being that the base station configures, including：Include in MIB and/or SIB The antenna port of the reference signal and/or the corresponding drawing information of the antenna port.

46. devices according to claim 41, it is characterised in that described device also includes：

Second sending module, for sending the second reference signal by the second running time-frequency resource.

47. devices according to claim 46, it is characterised in that

48. devices according to claim 47, it is characterised in that

In independent operation standalone scenes, second running time-frequency resource corresponding symbol in corresponding subframe One or more symbol in front four symbols of the subframe.

49. devices according to claim 47, it is characterised in that

Front four symbols of the subframe.

50. devices according to claim 47, it is characterised in that

51. devices according to claim 46, it is characterised in that the base station sends second by the second running time-frequency resource Reference signal includes：

52. devices according to claim 46, it is characterised in that second running time-frequency resource and first time-frequency money Source does not overlap.

53. devices according to claim 46 or 51, it is characterised in that second running time-frequency resource according to it is following at least One of mode determine：

54. devices according to claim 53, it is characterised in that also include：

Second running time-frequency resource is determined according at least one of：The number of repetition of the PDSCH, it is described under The number of repetition of row control information, the form of the Downlink Control Information, the descending control for dispatching the PDSCH Information；The type or transmission mode of the designated terminal or the first terminal or the second terminal.

55. devices according to claim 54, it is characterised in that the Downlink Control Information of the scheduling PDSCH Including：

56. devices according to any one of claim 46 to 55, it is characterised in that the antenna of second reference signal Port and/or the corresponding pattern of the antenna port are default or described base station configurations.

57. devices according to claim 53 or 56, it is characterised in that the antenna port of second reference signal and / or the corresponding default pattern of the antenna port determine in the following manner：

The antenna port and/or the corresponding pattern of the antenna port of second reference signal by the base station according to At least one of determines：The type or transmission of the designated terminal and/or the first terminal or the second terminal Pattern；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The descending control letter The form of breath；The preamble sent during the terminal Stochastic accessing.

58. devices according to claim 53, it is characterised in that send downstream signal to designated terminal in the base station Before, or the base station to the first terminal send PDSCH before, or the base station to the second terminal send out Before sending Downlink Control Information, described device also includes：

59. devices according to claim 53 or 56, it is characterised in that the antenna port of second reference signal and / or the corresponding pattern of the antenna port configured by way of at least one of：Notify in SIB, first Notify in high-level signaling or in the DCI, notify in the second high-level signaling, in the designated terminal or described the Notify in the accidental access response RAR received when one terminal or the second terminal Stochastic accessing or message.

60. devices according to claim 46, it is characterised in that

A kind of 61. reception devices of reference signal, are applied to end side, it is characterised in that include：

First receiver module, for receive that base station is sent by N number of antenna port on the first running time-frequency resource first Reference signal, first running time-frequency resource are predefined and/or base station configuration, wherein, N is positive integer.

62. devices according to claim 61, it is characterised in that determine the mode of first running time-frequency resource include with It is one of lower：

63. devices according to claim 62, it is characterised in that described to be located according to the publicly-owned message of all or part Time-domain resource and/or frequency domain resource determine that the mode of first running time-frequency resource includes：

64. devices according to claim 61 or 62, it is characterised in that the antenna port of first reference signal and / or the corresponding pattern of the antenna port be the configuration of predefined or described base station.

65. devices according to claim 62 or 64, it is characterised in that in the antenna port of first reference signal And/or the antenna port corresponding pattern is when being that the base station configures, including in MIB and/or SIB, include institute State the antenna port and/or the corresponding drawing information of the antenna port of reference signal.

66. devices according to claim 61, it is characterised in that described device also includes：

67. devices according to claim 66, it is characterised in that

68. devices according to claim 67, it is characterised in that

69. devices according to claim 67, it is characterised in that

Front four symbols of the subframe.

70. devices according to claim 68, it is characterised in that

71. devices according to claim 66, it is characterised in that the base station sends second by the second running time-frequency resource Reference signal includes：

72. devices according to claim 66, it is characterised in that second running time-frequency resource and first time-frequency money Source does not overlap.

73. devices according to claim 66 or 71, it is characterised in that second running time-frequency resource according to it is following at least One of mode determine：

74. devices according to claim 73, it is characterised in that also include：

75. devices according to claim 74, it is characterised in that the Downlink Control Information of the scheduling PDSCH Including：

76. devices according to any one of claim 66 to 75, it is characterised in that the antenna of second reference signal Port and/or the corresponding pattern of the antenna port are default or described base station configurations.

77. devices according to claim 73 or 75, it is characterised in that the antenna port of second reference signal and / or the corresponding default pattern of the antenna port determine in the following manner：

The antenna port and/or the corresponding pattern of the antenna port of second reference signal by the base station according to At least one of determines：The type or transmission mould of the designated terminal and the first terminal or the second terminal Formula；The number of repetition of the PDSCH；The number of repetition of the Downlink Control Information；The Downlink Control Information Form；The preamble sent during the terminal Stochastic accessing.

78. devices according to claim 73, it is characterised in that send downstream signal to designated terminal in the base station Before, or the base station to the first terminal send PDSCH before, or the base station to the second terminal send out Before sending Downlink Control Information, described device also includes：

3rd receiver module, for receiving DCI or the first high-level signaling that the base station sends, wherein, it is described DCI or first high-level signaling carry indicate the terminal send downstream signal time-domain resource and/or In the configured information for sending the second reference signal in person's frequency domain resource.

79. devices according to claim 73 or 75, it is characterised in that the antenna port of second reference signal and / or the corresponding pattern of the antenna port configured by way of at least one of：Notify in SIB, first Notify in high-level signaling or in the DCI, notify in the second high-level signaling, in the designated terminal or described the Notify in the accidental access response RAR received when one terminal or the second terminal Stochastic accessing or message.

80. devices according to claim 71, it is characterised in that