CN108616340A

CN108616340A - A kind of method and apparatus of transmission pilot signal

Info

Publication number: CN108616340A
Application number: CN201611141415.6A
Authority: CN
Inventors: 刘樊; 刘一樊; 雷鸣; 张雷鸣
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2018-10-02
Anticipated expiration: 2036-12-12
Also published as: CN108616340B

Abstract

An embodiment of the present invention provides a kind of method and apparatus of transmission pilot signal, this method includes：Sending device determines at least one pilot tone pattern according at least one code word, which corresponds at least one code word, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal；The sending device sends the pilot signal according at least one pilot tone pattern on the running time-frequency resource indicated by least one pilot tone pattern.Thus, it is possible to the separate configurations of pilot tone pattern are carried out according to different code words, and different pilot tone patterns correspond to the density of at least one pilot signal, to reasonable employment system time frequency resource, meanwhile, improve the efficiency of transmission of data.

Description

A kind of method and apparatus of transmission pilot signal

Technical field

The present embodiments relate to the communications fields, more particularly, to a kind of side of transmission pilot signal in the communications field Method and device.

Background technology

With the development of the communication technology, pilot signal (Pilot Signal, referred to as " PS "), reference signal in other words (Reference Signal, referred to as " RS ") has been used widely.

In existing long term evolution (Long Term Evolution, referred to as " LTE ") system, pilot signal, such as solve Reference signal (Demodulation Reference Signal, referred to as " DMRS ") is adjusted, under determining transmission layer model, often The density (for convenience, being denoted as pilot density) of the pilot signal of a transport layer is fixed.Specifically, when transmission When the number of plies is less than or equal to 4, the pilot density in each transport layer is 6 resource elements (Resource Element, abbreviation " RE "), that is, in a resource block (Resource Block, referred to as " RB ") centering, each transport layer actual use is used to pass The RE of defeated DMRS is 6, that is, the pilot density in each transport layer can be expressed as 6RE/RB/port；When the transmission number of plies is big When 4, the pilot density in each transport layer is 3RE/RB/port.

But since the channel quality in different transport layers is different, and the modulating-coding in each code word is different, existing There is no adapt to the channel quality in transport layer and different code words for fixed pilot density in technology under constant transmissions layer model Modulating-coding, it may appear that two aspect problems：On the one hand, the expense of unnecessary pilot resources is caused, on the other hand, is needed Pilot resources are insufficient, influence the demodulation of data and the estimation of channel, measurement etc..

Therefore, the technical issues of how reasonably optimizing distributes pilot resources, becomes urgent need to resolve.

Invention content

The embodiment of the present invention provides a kind of method of transmission pilot signal, can be close according to different code word reasonable disposition pilot tones Degree, and then determine the running time-frequency resource of pilot signal, to reasonable employment system time frequency resource.

In a first aspect, a kind of method of transmission pilot signal is provided, the method includes：Sending device is according at least one A code word determines that at least one pilot tone pattern, at least one pilot tone pattern are corresponded at least one code word, In, at least one pilot tone pattern corresponds to the density of at least one pilot signal；

The sending device according at least one pilot tone pattern, indicated by least one pilot tone pattern when The pilot signal is sent in frequency resource.

Therefore, the method for transmission pilot signal provided in an embodiment of the present invention can carry out pilot patterns according to different code words The separate configurations of sample, and different pilot tone patterns correspond at least one pilot density, that is, it can be determined according to different code words for passing The pilot resources of defeated pilot signal, to reasonable employment system time frequency resource, meanwhile, improve the efficiency of transmission of data.

With reference to first aspect, in the first possible realization method of first aspect, the sending device is according at least One code word determines at least one pilot tone pattern, including：The sending device is according at least one code word, determining and institute State the corresponding modulation of at least one code word and coding strategy MCS；

The sending device determines at least one pilot tone pattern according to the MCS, the MCS correspond to it is described extremely A few pilot tone pattern.

With reference to first aspect, in second of possible realization method of first aspect, the sending device is according at least One code word determines at least one pilot tone pattern, including：

The sending device determines at least one corresponding at least one code word according at least one code word Pilot density；

The sending device determines at least one pilot tone pattern according at least one pilot density.

With reference to first aspect, in the third possible realization method of first aspect, at least one pilot tone pattern It is to be determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

With reference to first aspect, in the 4th kind of possible realization method of first aspect, the method further includes：The hair Equipment is sent to determine a basic pilot tone pattern；And

The sending device determines at least one pilot tone pattern according at least one code word, including：

The sending device determines described at least one lead according at least one code word and the basic pilot tone pattern Frequency pattern.

With reference to first aspect, in the 5th kind of possible realization method of first aspect, the sending device is according to At least one code word and the basic pilot tone pattern determine at least one pilot tone pattern, including：

The sending device determines modulate and volume corresponding at least one code word according at least one code word Code strategy MCS；

The sending device determines at least one pilot tone pattern according to the MCS and the basic pilot tone pattern.

With reference to first aspect, in the 6th kind of possible realization method of first aspect, the method further includes：The hair Equipment is sent to send the first instruction information to receiving device, the first instruction information is used to indicate at least one pilot patterns Sample, in order to which the receiving device receives the pilot tone letter on the running time-frequency resource indicated by least one pilot tone pattern Number.

Second aspect provides a kind of method of transmission pilot signal, the method includes：

Receiving device determines at least one pilot tone pattern according at least one code word, at least one pilot tone pattern with At least one code word corresponds, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal； Or

The receiving device receives the first instruction information that sending device is sent, and the first instruction information is used to indicate institute State at least one pilot tone pattern；

The receiving device according at least one pilot tone pattern, indicated by least one pilot tone pattern when The pilot signal is received in frequency resource.

In conjunction with second aspect, in the first possible realization method of second aspect, the receiving device is according at least One code word determines at least one pilot tone pattern, including：

The receiving device determines modulate and volume corresponding at least one code word according at least one code word Code strategy MCS；

The receiving device determines at least one pilot tone pattern according to the MCS, the MCS correspond to it is described extremely A few pilot tone pattern.

In conjunction with second aspect, in second of possible realization method of second aspect, the receiving device is according at least One code word determines at least one pilot tone pattern, including：

The receiving device determines at least one corresponding at least one code word according at least one code word Pilot density；

The receiving device determines at least one pilot tone pattern according at least one pilot density.

In conjunction with second aspect, in the third possible realization method of second aspect, at least one pilot tone pattern It is to be determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

In conjunction with second aspect, in the 4th kind of possible realization method of second aspect, the method further includes：It is described to connect Receiving unit determines a basic pilot tone pattern；And

The receiving device determines at least one pilot tone pattern according at least one code word, including：

The receiving device determines described at least one lead according at least one code word and the basic pilot tone pattern Frequency pattern.

In conjunction with second aspect, in the 5th kind of possible realization method of second aspect, the receiving device is according to At least one code word and the basic pilot tone pattern determine at least one pilot tone pattern, including：

The receiving device determines at least one pilot tone pattern according to the MCS and the basic pilot tone pattern.

The third aspect, provides a kind of device of transmission pilot signal, which can execute above-mentioned first aspect or the The operation of sending device in the arbitrary optional realization method of one side.Specifically, which may include being used for Execute the modular unit of the operation of the sending device in the arbitrary possible realization method of above-mentioned first aspect or first aspect.

Fourth aspect, provides a kind of device of transmission pilot signal, which can execute above-mentioned second aspect or the The operation of receiving device in the arbitrary optional realization method of two aspects.Specifically, which may include for holding The modular unit of the operation of receiving device in the arbitrary possible realization method of the above-mentioned second aspect of row or second aspect.

5th aspect, provides a kind of sending device of transmission pilot signal, which includes：Processor, transmitting-receiving Device and memory.Wherein, it is communicated by internal connecting path between the processor, transceiver and memory.The memory For storing instruction, which is used to execute the instruction of memory storage.When the processor executes memory storage When instruction, which makes the sending device execute the side in the arbitrary possible realization method of first aspect or first aspect Method or the execution make the device that the sending device realizes that the third aspect provides.

6th aspect, provides a kind of receiving device of transmission pilot signal, which includes：Processor, transmitting-receiving Device and memory.Wherein, it is communicated by internal connecting path between the processor, transceiver and memory.The memory For storing instruction, which is used to execute the instruction of memory storage.When the processor executes memory storage When instruction, which makes the receiving device execute the side in the arbitrary possible realization method of second aspect or second aspect Method or the execution make the device that the receiving device realizes that fourth aspect provides.

7th aspect, provides a kind of computer-readable medium, for storing computer program, which includes The instruction of the method in arbitrary possible realization method for executing first aspect or first aspect.

Eighth aspect provides a kind of computer-readable medium, and for storing computer program, which includes The instruction of the method in arbitrary possible realization method for executing second aspect or second aspect.

In above-mentioned certain realization methods, the density of pilot signal corresponds to for indicating in RB pairs of a resource block The number of each practical resource element RE occupied of antenna port at least one antenna port of at least one code word.

In above-mentioned certain realization methods, the sending device according at least one code word, determine with it is described at least one The corresponding at least one pilot density of code word, including：

The sending device determines at least one pilot density according to the MCS, the MCS correspond to it is described extremely A kind of few pilot density.

In above-mentioned certain realization methods, the first instruction information is to be used to indicate at least one pilot tone pattern Control signaling, or, correspondence of the first instruction information between the MCS and at least one pilot tone pattern.

In above-mentioned certain realization methods, the sending device is the network equipment, and the receiving device is terminal device.

Description of the drawings

Fig. 1 is the schematic diagram of the pilot tone pattern for the running time-frequency resource for being used for transmission DMRS in the prior art.

Fig. 2 is the schematic flow chart of the method for transmission pilot signal according to the ... of the embodiment of the present invention.

Fig. 3 a to Fig. 3 b are the schematic diagrames of an example of pilot tone pattern according to the ... of the embodiment of the present invention.

Fig. 4 is another schematic diagram of pilot tone pattern according to the ... of the embodiment of the present invention.

Fig. 5 a to Fig. 5 b are the schematic diagrames of an example again of pilot tone pattern according to the ... of the embodiment of the present invention.

Fig. 6 is the schematic block diagram of the device of transmission pilot signal according to the ... of the embodiment of the present invention.

Fig. 7 is the schematic block diagram of the device of transmission pilot signal according to the ... of the embodiment of the present invention.

Fig. 8 is the schematic diagram of the sending device of transmission pilot signal according to the ... of the embodiment of the present invention.

Fig. 9 is the schematic diagram of the receiving device of transmission pilot signal according to the ... of the embodiment of the present invention.

Specific implementation mode

The scheme of the embodiment of the present invention can be applied to existing cellular communication system, such as global system for mobile telecommunications (Global System for Mobile Communication, referred to as " GSM "), wideband code division multiple access (Wideband Code Division Multiple Access, referred to as " WCDMA "), in the systems such as LTE, the communication supported is primarily directed to voice With data communication.Usually, the connection number that a traditional base station is supported is limited, is also easy to realize.

Next generation mobile communication system make the following mobile data flow growth, magnanimity Internet of Things, diversified new business and Application scenarios are possibly realized.Other than serving as a unified connection framework, the basic 5G of cellular network of new generation newly eats dishes without rice or wine (5th Generation New Radio, referred to as " 5G NR ") is expected to the data speed of network, capacity, time delay, reliable Property, efficiency and covering power all promoted to completely new horizontal, and the usable spectrum resource that each bit will be made full use of.Meanwhile base It newly eats dishes without rice or wine to set in orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, referred to as " OFDM ") The 5G of meter will become global standards, and 5G equipment, diversified deployment is supported to cover diversified frequency spectrum (including to low-frequency range With the covering of high band), also to support diversified service and terminal.

As one of 5G NR technological means realized, large-scale Multiinputoutput (Multiple-Input Multiple-Output, referred to as " MIMO ") by using a large amount of antennas in base station high band is used, it thus can be with Concentrate energy transmission to user, to realize preferably covering in these higher frequency ranges.

MIMO technology refers to using multiple transmitting antennas and reception antenna respectively in sending device and receiving device, makes signal It by sending device and the transmission of the mutiple antennas of receiving device and receives, so as to improve communication quality.It can make full use of space Resource realizes that multiple-input multiple-output can be at double in the case where not increasing frequency spectrum resource and antenna transmission power by mutiple antennas Improve system channel capacity in ground.

Specifically, sending device carries out bit map processing to the multi-layer information bit for needing to be sent to receiving device, Modulated signal is mapped in one or more transport layers, one or more layers data flow (being referred to as, layer mapping), hair are generated It send equipment that this layer or multi-layer data stream are mapped on antenna port again, resource impact is carried out on each antenna port, it is raw At OFDM symbol and launch.

It is the corresponding antenna port of each layer to be transmitted while supporting multi-layer data stream, that is to say, that each layer corresponds to At least one antenna port.It should be noted that antenna port mentioned here can be understood as the logical end being used for transmission Mouthful, with physical antenna be not present one-to-one relationship, antenna port can by for the antenna pilot signal (for example, DMRS it) defines.In other words, a DMRS has corresponded to an antenna port.

In the following, the connection object to the embodiment of the present invention is described in detail.

Specifically, the connection object of the embodiment of the present invention can be pilot signal, be referred to as reference signal, be by Sending device is supplied to known to one kind for channel estimation, channel measurement, channel detection or channel demodulation etc. of receiving device Signal.

In embodiments of the present invention, pilot signal can be applied to physical layer, not carry from high-rise data information.And And the pilot signal may include downlink reference signal and uplink reference signals.

Wherein, downlink reference signal includes the cell specific reference signal (Cell-specific for downlink Reference Signal, referred to as " CRS "), it is used for the terminal device specific reference signals (UE-specific of downlink Reference Signal, referred to as " UE-RS "), the channel state information reference signals (CSI- of the channel measurement for downlink RS), the group specific reference signals (Group-specific Reference Signal, referred to as " GRS ") of downlink are used for, are used for The location reference signals (Positioning RS, referred to as " PRS ") of downlink, are used for the lobe reference signal (Beam of downlink Reference signal, referred to as " BRS "), lobe refinement reference signal (the Beam refinement for downlink Reference signal, referred to as " BRRS "), or for phase compensation reference signal (the Phase compensation of downlink Reference signal, referred to as " PCRS ") etc..Wherein, the UE-RS for being used for downlink also makes the demodulation reference for downlink believe Number (Demodulation Reference Signal, referred to as " DMRS ").

Uplink reference signals include demodulated reference signal (the Demodulation Reference for uplink demodulation Signal, referred to as " DMRS "), for up channel measure detection reference signal (Sounding reference signal, Referred to as " SRS "), or the PCRS etc. for uplink.Wherein, the DMRS for PUCCH demodulation is known as PUCCH DMRS, is used for The DMRS of PUSCH demodulation is known as PUSCH DMRS.

In addition to pilot signal, connection object of the invention can also be in the sequence signal set with good correlation A sequence signal.The good correlation be set in any one sequence have larger autocorrelation peak, and Any two sequence has smaller cross-correlation peak value in set.That is, in embodiments of the present invention, sending device can send more A signal, wherein at least one signal are the sequence signal with above-mentioned good correlation, such as pseudorandom (pseudo Random) sequence and Zuo Daofushu (Zadoff-chu) sequence.

Specifically, correlation refers to a sequence signal carries out correlation computations with same another sequence signal of gathering, calculate Obtain correlation.To which for the sequence signal with good correlation, receiving device can be based on correlation, and detection should Whether signal is deposited.That is, for the sequence signal with correlation transmission without using testing mechanisms such as pilot tones.Wherein, as One kind of signal with good correlation can enumerate pilot signal.

It should be understood that the specific example of sequence signal listed above is merely illustrative, the present invention is not limited to this, For example, the sequence signal can also be for carrying feedback information (for example, confirming (ACK) information or non-acknowledgement (NACK) information) Signal, resource request signal or measure request signal etc..

Below in conjunction with Fig. 1, to transmit the number of plies for 8 layers, for pilot signal is DMRS, to being used for transmission in the prior art The configuration method of the running time-frequency resource of DMRS is described in detail.

Fig. 1 shows the schematic diagram of the pilot tone pattern for the running time-frequency resource for being used for transmission DMRS in the prior art.Such as Fig. 1 institutes Show, which supports maximum 8 layers of data flow spatial reuse, in order to support 8 layers of data flow simultaneous transmission, the knot of DMRS Structure is also configured as 8 antenna ports of highest, for ease of illustration and distinguishes, which is denoted as #0~#7 respectively, each Antenna end slogan corresponds to an antenna port.The DMRS of each antenna port is in discrete point on the running time-frequency resource of a RB block The channel estimator of cloth, such receiver can resist the time variation of channel by time-domain filtering, and be solved by frequency domain filtering The frequency selectivity of channel.DMRS between each antenna port uses frequency division multiplexing (Frequency Division Multiplexing, referred to as " FDM ") and the mode of code division multiplexing (Code Division Multiplexing, abbreviation " CDM ") Ensure orthogonality.As shown in Figure 1, it is two groups that the corresponding DMRS of 8 antenna ports, which is divided to, DMRS corresponding with #0, #1, #4, #6 (for Facilitate explanation, be denoted as DMRS 0/1/4/6) and DMRS corresponding with #2, #3, #5, #7 (for convenience of description, be denoted as DMRS 2/3/ 5/7) frequency division multiplexing is used between two groups, to ensure the orthogonality between group between DMRS；DMRS0/1/4/6 within every group is corresponded to 4 antenna ports (that is, #0, #1, #4, #6) between using orthogonal mask (Orthogonal Cover Code, referred to as " OCC ") code division multiplexing, and mask-length is 4, the orthogonality in guarantee group between the corresponding DMRS of each antenna port.

It should be noted that the density (for the convenience of description, being denoted as pilot density) of pilot signal is for indicating at one RB centerings, the number of one all RE of RB block centerings of each corresponding practical occupancy of RE of antenna port.

In the description of the embodiment of the present invention, it can be understood as, a logical antenna ports correspond to a transport layer, pilot tone Density can be directed to the physical quantity of antenna port, can also be the physical quantity for being directed to transport layer.

In Fig. 1, DMRS 0/1/4/6 occupies identical running time-frequency resource simultaneously, and RE quantity is 12, for each antenna For port, the number of the RE actually occupied is 12/4=3, that is, the corresponding each transport layer of antenna port #0, #1, #4, #6 Pilot density is all 3RE/RB/port；Similarly, the identical running time-frequency resource that DMRS2/3/5/7 is occupied simultaneously, and RE quantity is 12, for each antenna port, the number of the RE actually occupied is 12/4=3, that is, antenna port #2, #3, #5, #7 couple The pilot density for each transport layer answered is 3RE/RB/port, in this way, for the transmission layer model that transport layer is 8, often The pilot density of the corresponding transport layer of a antenna port is all 3RE/RB/port.

It is more when physical layer is modulated for different code words (it is also understood that different transmission blocks) in LTE system In the case of number, modulation and coding strategy (Modulation and Coding Scheme, referred to as " MCS ") between different code words etc. Grade differs, and in other words, the just the same situation of MCS grades between different code words seldom exists；Meanwhile different code words are carried out Before modulation, (Channel Quality are indicated based on the channel quality for indicating channel quality that receiving device is sent Indictor, referred to as " CQI ") select modulation corresponding with the CQI and coding strategy (Modulation and Coding Scheme, referred to as " MCS ") be modulated for different code words, thus by different code words be mapped to one corresponding with the CQI or The multiple transport layers of person, different code words correspond to different CQI (that is, different code words correspond to different channel qualities).It is also possible to Channel quality is characterized using signal-to-noise ratio (Signal-Noise Ratio, referred to as " SNR ").

It should be understood that CQI or SNR value are higher, indicate that channel quality is better, CQI or SNR value are lower, indicate that channel quality is got over It is low.Meanwhile there are correspondences between tri- physical quantitys of MCS, SNR, CQI, that is, MCS grades are high, and CQI or SNR value are high, MCS grades are low, and CQI or SNR value are low.

Thus, when the corresponding MCS grades of different code words (in other words, modulating-coding exponent number) difference, different code words correspond to not Same CQI or SNR, requirement of the system for channel estimation are also different.Specifically, SNR high, corresponding MCS grades are high, right It is high in the required precision of channel estimation, it needs to configure larger pilot density for the corresponding DMRS of corresponding transport layer, just can guarantee Demodulation performance；Similarly, SNR is low, and corresponding MCS grades are low, low for the required precision of channel estimation, is corresponded to for corresponding transport layer DMRS configure less pilot density, can also ensure demodulation performance.

But as shown in Figure 1, in the prior art, the channel quality regardless of each transport layer, what each code word used MCS grades are how, and the corresponding pilot density of each transport layer is the same, in this way, for poor channel quality, meeting Waste it is unnecessary to pilot resources (it is to be understood that pilot density is corresponding with pilot resources), for preferable channel For quality, pilot resources are again not enough, to influence the demodulation of data, and then influence the efficiency of transmission of data.

Therefore, the corresponding channel quality gap of different code words is bigger, and the distribution of pilot resources is unreasonable, the two poles of the earth occurs Change state has seriously affected the efficiency of transmission of data.

Hereinafter, in conjunction with Fig. 2 to Fig. 5, the method according to the ... of the embodiment of the present invention for transmitting pilot signal is described in detail.

Optionally, which is the network equipment, which is terminal device, alternatively, the transmitting terminal is set Standby is terminal device, which is the network equipment.

In all embodiments of the present invention, sending ending equipment can be the network equipment (for example, the network sides such as base station are set It is standby), receiving device can be terminal device (for example, user equipment), that is, this method 100 can be applied to downlink transfer.

Alternatively, sending ending equipment can also be terminal device (for example, user equipment), receiving device can be network Equipment (for example, the network side equipments such as base station), that is, this method 100 can be applied to uplink.

Similarly, in embodiments of the present invention, which can be that terminal device is sent to the network equipment, alternatively, Pilot signal can also be that the network equipment is sent to terminal device, and the present invention is simultaneously not particularly limited.

Combination terminal device of the embodiment of the present invention describes each embodiment.Terminal device is referred to as user equipment (User Equipment, referred to as " UE ") user equipment, access terminal, subscriber unit, subscriber station, movement station, mobile station, a distant place Stand, remote terminal, mobile device, user terminal, terminal, wireless telecom equipment, user agent or user apparatus.Terminal device can To be website (STAION, abbreviation in WLAN (Wireless Local Area Networks, referred to as " WLAN ") " ST "), can be cellular phone, wireless phone, session initiation protocol (Session Initiation Protocol, abbreviation " SIP ") phone, wireless local loop (Wireless Local Loop, referred to as " WLL ") stand, personal digital assistant (Personal Digital Assistant, referred to as " PDA ") equipment, handheld device with wireless communication function, calculating are set In other processing equipments that are standby or being connected to radio modem, mobile unit, wearable device and future 5G networks Terminal device etc. in terminal device or the PLMN networks of the following evolution.

In addition, the combination network equipment of the embodiment of the present invention describes each embodiment.The network equipment can be the network equipment Deng for the equipment with mobile device communication, the network equipment can be in WLAN access point (ACCESS POINT, referred to as " AP "), the base station (Base in GSM or CDMA (Code Division Multiple Access, referred to as " CDMA ") Transceiver Station, referred to as " BTS "), it can also be the base station (NodeB, referred to as " NB ") in WCDMA, can also be LTE the evolved base station (Evolutional Node B, referred to as " eNB " or " eNodeB ") or relay station in) or access Point is either in the PLMN networks of mobile unit, wearable device and the network equipment or the following evolution in future 5G networks The network equipment etc..

The method and apparatus of transmission pilot signal provided in an embodiment of the present invention, can be applied to terminal device or network are set Standby, the terminal device or the network equipment include hardware layer, operate in the operating system layer on hardware layer, and operate in operation Application layer in system layer.The hardware layer includes central processing unit (Central Processing Unit, referred to as " CPU "), interior Deposit the hardware such as administrative unit (Memory Management Unit, referred to as " MMU ") and memory (also referred to as main memory).The operation system System can be the computer operating system that any one or more realizes business processing by process (Process), for example, (SuSE) Linux OS, Unix operating systems, Android operation system, iOS operating systems or windows operating systems etc..It should Application layer includes the applications such as browser, address list, word processor, instant communication software.Also, in the embodiment of the present invention In, the concrete structure of the executive agent of the method for signal is transmitted, the present invention is simultaneously not particularly limited, as long as can pass through log The program for having the code of the method for the transmission pilot signal of the embodiment of the present invention is believed with transmission pilot tone according to the ... of the embodiment of the present invention Number method communicated, for example, the executive agent of the method for the transmission pilot frequency information of the embodiment of the present invention can be eventually End equipment or the network equipment, alternatively, being that caller and the function module of program can be executed in terminal device or the network equipment.

In addition, the various aspects or feature of the embodiment of the present invention may be implemented into method, apparatus or using standard program and/ Or the product of engineering technology.Term " product " used herein is covered can be from any computer-readable device, carrier or Jie The computer program that matter accesses.For example, computer-readable medium may include, but it is not limited to:Magnetic memory device (for example, hard disk, Floppy disk or tape etc.), CD is (for example, compact disk (Compact Disc, referred to as " CD "), digital versatile disc (Digital Versatile Disc, referred to as " DVD ") etc.), smart card and flush memory device are (for example, Erarable Programmable Read only Memory (Erasable Programmable Read-Only Memory, referred to as " EPROM "), card, stick or Keyed actuator etc.).Separately Outside, various storage media described herein can represent one or more equipment for storing information and/or other machine readable Medium.Term " machine readable media " may include but be not limited to, wireless channel and can store, include and/or carrying instruction and/ Or the various other media of data.

Fig. 2 is the schematic flow chart of the method 100 of transmission pilot signal according to the ... of the embodiment of the present invention.Specifically, The angle that Fig. 2 is interacted from equipment describes the method 100 of the transmission pilot signal of the embodiment of the present invention.

As shown in Fig. 2, this method 100 includes：

S110, sending device determine at least one pilot tone pattern, at least one pilot patterns according at least one code word Sample is corresponded at least one code word, wherein at least one pilot tone pattern corresponds at least one pilot density.

Specifically, a code word corresponds to a pilot tone pattern, multiple code words correspond to multiple pilot tone patterns, multiple pilot patterns Each pilot tone pattern is used for transmission the running time-frequency resource difference of pilot signal in sample, meanwhile, multiple pilot tone patterns correspond at least one Pilot density, that is to say, that multiple code words correspond at least one pilot densities, that is, each in multiple code words code word is corresponding leads Frequent degree can be identical, can also part it is identical, can also be entirely different.

It should be noted that can be between pilot resources at least one pilot tone pattern indicated by each pilot tone pattern The transmission of pilot signal is realized by frequency division multiplexing mode, specific implementation is similar to the prior art, no longer carries out here It repeats.

Pilot density corresponds at least one day of at least one code word it is to be understood that in RB pairs of a resource block The number of each practical resource element RE occupied of antenna port in line end mouth.

For example, when mutiple antennas port is multiplexed same running time-frequency resource by different modes, the running time-frequency resource The ratio of the number of corresponding RE and the number of mutiple antennas port is exactly the number of the RE corresponding to pilot density.Such as Fig. 1 institutes Show, DMRS 0/1/4/6 occupies identical running time-frequency resource simultaneously, and RE quantity is 12, practical for each antenna port The number of the RE of occupancy be 12/4=3, that is, antenna port 0, the corresponding each transport layer of #1, #4, #6 pilot density be 3RE/RB/port。

For another example when different running time-frequency resources are respectively adopted between each antenna port in mutiple antennas port (that is, different The corresponding running time-frequency resource of antenna port without multiplexing), as soon as each antenna port in RB blocks pair, the number of the RE of occupancy It is the number of the RE actually occupied.

Thus, sending device #A (that is, an example in sending device) can determine at least one pilot density according to code word.

Optionally, which determines at least one pilot tone pattern according at least one code word, including：

The sending device determines modulation corresponding at least one code word and coding strategy according at least one code word MCS；

The sending device determines that at least one pilot tone pattern, the MCS correspond to the described pilot tone according to the MCS Pattern.

Specifically, each code word at least one code word corresponds to a kind of order of modulation, that is, each code word corresponds to one Kind MCS, then, which corresponds at least one MCS, i.e. a code word or multiple code words can correspond at least one MCS, can also correspond to a variety of MCS, and the species number of MCS is less than or equal to the number of code word；Simultaneously as code word and pilot tone pattern Between be one-to-one relationship, one or more of pilot tone patterns can correspond at least one MCS, can also correspond to a variety of The species number of MCS, MCS are less than or equal to the number of pilot tone pattern；Meanwhile a kind of MCS corresponds to a kind of pilot density, that is, MCS with There are one-to-one relationships between pilot density, so, multiple code words can correspond at least one pilot density.

As described above, the relationship between code word, MCS, pilot tone pattern and pilot density is as follows：One code word corresponds to one Pilot tone pattern, a kind of MCS correspond to a kind of pilot density, and multiple code words correspond at least one MCS, and (multiple pilot tone patterns correspondences are at least A kind of pilot density) a kind of MCS corresponds at least one pilot tone pattern.

Here, it is close that code word, the corresponding pilot tone patterns of code word corresponding MCS, MCS and the corresponding pilot tone of pilot tone pattern are based on Correspondence between degree, it can also be seen that the number of code word is greater than or equal to the number of pilot density (or, pilot tone pattern Number is greater than or equal to the species number of MCS)：For example, there are two code words in current physical layer, correspond to the pilot tone of two code words Or density is two kinds or is a kind of.Wherein, when the pilot density for corresponding to two code words is two kinds, two code words Corresponding MCS is different, and corresponding channel quality is different, corresponding to different pilot density corresponding from two code words Pilot resources carry out pilot signal transmission, preferably data could be demodulated；Corresponding to the pilot tone of two code words When density is a kind of, the corresponding MCS of two code words is identical, and corresponding channel quality difference is smaller or identical, can use same A kind of corresponding pilot resources solution adjusting data of pilot density.

Non-limiting as example, above-mentioned two code word is only to schematically illustrate, and may exist a code word in system, There may be multiple code words, and the present invention is not limited thereto.

Thus, sending device #A can be determined and each code word at least one code word according at least one code word Corresponding MCS according to MCS corresponding with each code word, determines at least one pilot tone pattern in turn.

Non-limiting as example, sending device #A not only can determine pilot tone according to the corresponding MCS of at least one code word Pattern can also determine pilot tone pattern according to other parameters.For example, the parameter can be intended to indicate that the parameter of channel quality CQI can also be SNR etc., and the present invention is not limited thereto.

The sending device determines that at least one pilot tone corresponding at least one code word is close according at least one code word Degree；

Specifically, as described above, multiple pilot tone patterns correspond at least one pilot density, thus, sending device #A can To determine at least one pilot density corresponding with code word according to code word, and then pilot tone is determined according at least one pilot density Pattern.

Further, sending device #A determines that at least one pilot tone is close according at least one MCS corresponding with code word Degree, a kind of MCS correspond to a kind of pilot density, and then determine pilot tone pattern according at least one pilot density.

Similarly, non-limiting as example, sending device #A can not only be determined according to the corresponding MCS of at least one code word Pilot tone pattern can also determine pilot tone pattern according to other parameters.For example, the parameter can be intended to indicate that channel quality Parameter CQI can also be SNR etc., and the present invention is not limited thereto.

The detailed process of at least one pilot tone pattern is determined according at least one code word below for sending device #A It is described in detail with method.

For example, when in physical layer there are when two code words, then, a kind of MCS (situation 1) is corresponded in two pilot tone patterns, Two pilot tone patterns correspond to two kinds of MCS (situation 2), in the following, being illustrated to above-mentioned two situations.

Situation 1 (two pilot tone patterns correspond to a kind of MCS)

The corresponding MCS grades of first code word (for the ease of distinguishing and illustrating, being denoted as code word #1) 1 are (for convenience of description and area Point, be denoted as MCS#1), the first pilot tone pattern (for convenience of description and distinguishing, be denoted as pilot tone pattern #1) is configured for code word #1, In, pilot tone pattern #1 corresponds to the first pilot density (for the ease of distinguishing and illustrating, being denoted as pilot density #1)；Meanwhile second code Word (for the ease of distinguishing and illustrating, being denoted as code word #2) also corresponds to MCS#1, then, be code word #2 configure the second pilot tone pattern (in order to Convenient for illustrating and distinguishing, it is denoted as pilot tone pattern #2), wherein pilot tone pattern #2 corresponds to pilot density #1.That is, two code words correspond to Two pilot tone patterns all correspond to a kind of MCS.

Situation 2 (two pilot tone patterns correspond to two kinds of MCS)

Code word #1 corresponds to MCS#1, and sending device #A is that code word #1 configures pilot tone pattern #1, wherein pilot tone pattern #1 is corresponded to Pilot density #1；Meanwhile code word #2 corresponds to MCS grades 2 (for the ease of distinguishing and illustrating, being denoted as MCS#2), sending device #A is MCS#2 third pilot tones pattern (for convenience of description and is distinguished, be denoted as pilot tone pattern #3), wherein pilot tone pattern #3 corresponds to second Pilot density (is denoted as, pilot density #2), in this way, two pilot tone patterns correspond to two kinds of pilot densities.

To, sending device #A according at least one pilot tone pattern determination determined be used for transmission pilot signal when Frequency resource.

Above-mentioned sending device #A determines the process of at least one pilot tone pattern according at least one code word, when can be When be dynamically determined, can also be sending device #A according at least one code word, determined from the N number of pilot tone pattern to prestore.

Optionally, which determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern Different each other, which is the integer more than 1.

Specifically, sending device #A according at least one code word, determines MCS corresponding at least one code word, And then at least one pilot tone pattern is determined from the N number of pilot tone pattern to prestore according to MCS.

Wherein, the correspondence between MCS and pilot tone pattern can be specified in agreement, and thus, sending device #A can According to the MCS for corresponding at least one code word, pilot tone pattern corresponding with the MCS is selected in N number of pilot tone pattern, that is, At least one pilot tone pattern.

It is directed to the N number of pilot tone pattern to prestore, needs to illustrate the following：

(1) the corresponding pilot tone pattern both for the same transmission number of plies of N number of pilot tone pattern.

For example, when it is 8 to transmit the number of plies, N number of pilot tone pattern can be corresponded to.And in the prior art, it is directed to same biography The defeated number of plies, only there are one pilot tone patterns.

(2) each pilot tone pattern in N number of pilot tone pattern corresponds to a kind of pilot density.

Specifically, the corresponding pilot density of each pilot tone pattern can be entirely different, can also part it is identical, can also It is identical.

For example, pilot tone pattern #1 corresponds to pilot density #1, pilot tone pattern #2 can correspond to pilot density #2, pilot tone pattern #3 Pilot density #3 can be corresponded to, in this way, the pilot density between different pilot tone patterns is entirely different.

For another example pilot tone pattern #1 corresponds to pilot density #1, pilot tone pattern #2 can correspond to pilot density #1, pilot patterns Sample #3 can correspond to pilot density #3, alternatively, pilot tone pattern #1 corresponds to pilot density #1, it is close that pilot tone pattern #2 can correspond to pilot tone #2 is spent, pilot tone pattern #3 can correspond to pilot density #2, etc., in this way, the pilot density between different pilot tone patterns can part It is identical.

For another example pilot tone pattern #1 corresponds to pilot density #1, pilot tone pattern #2 can correspond to pilot density #1, pilot patterns Sample #3 can correspond to pilot density #1, in this way, the pilot density between different pilot tone patterns is identical.

(3) position of the RE for being used for transmission the pilot signal in each pilot tone pattern can be the same or different.

It is described above how pilot tone pattern to be determined according to the corresponding at least one pilot density of at least one code word, under Face is briefly described the configuration of pilot tone pattern from specific implementation angle.

Optionally, this method further includes：

The sending device determines a basic pilot tone pattern；And

The sending device according to this state at least one code word and the basic pilot tone pattern, determine at least one pilot patterns Sample.

Specifically, an embodiment of the present invention provides a kind of sides generating multiple pilot tone patterns based on a basic pilot tone pattern Case carries out the operation of dependency rule for the basic pilot tone pattern according at least one code word, for example, on frequency domain or when It on domain, is specifically shifted for different RE, to generate at least one pilot tone pattern corresponding at least one code word.

Further, which states at least one code word and the basic pilot tone pattern according to this, determine this at least one A pilot tone pattern, including：

Specifically, the correspondence that is again based between different MCS and different pilot tone patterns and determine that this is at least one Pilot tone pattern.Sending device #A is according to the corresponding MCS of different code words, it may be determined that correspond to the pilot density of MCS, in turn, Relevant operation is carried out for the basic pilot tone pattern, the corresponding at least one pilot density of different code words is realized, so that it is determined that should At least one pilot tone pattern.

In the following, with two code words, 8 transport layers (that is, 8 antenna ports), the specific mistake of the generation of two pilot tone patterns For journey, the embodiment of the present invention is illustrated.

It should be noted that simplify the description, two pilot tone patterns for corresponding respectively to two code words are placed on one It is illustrated in a total pilot tone pattern, that is, it is believed that including two subgraphs in pilot tone pattern shown in Fig. 3 a and Fig. 3 b Sample corresponds to two pilot tone patterns of two code words.

As shown in Figure 3a, it in one RB pairs, is provided according to system, pilot signal can be mapped in first row and second On row symbol, meanwhile, in the basic pilot tone pattern, a certain number of RE of corresponding position fixed configurations, remaining pilot tone pattern base It is generated in the basic pattern.

For example, in the basic pilot tone pattern, 8 antenna ports are divided into two groups, by the corresponding antenna port # of code word #1 1 to antenna port #4 as one group (for the ease of distinguishing and illustrating, being denoted as a group #1), using identical running time-frequency resource, in group not Different code Resource Guarantee orthogonalities is used with antenna port；Using code word #2 corresponding antenna port #5 to antenna port #8 as One group (for the ease of distinguishing and illustrating, being denoted as a group #2) is organized interior different antennae port and is used difference using identical running time-frequency resource Code Resource Guarantee orthogonality.According to aforementioned, it can be seen that each corresponding pilot tone of antenna port is close in the basic pilot tone pattern Degree is all 1RE/PRB/port.

Code word #1 and code word #2 correspond to different MCS, may thereby determine that two pilot tone patterns need corresponding pilot tone Density is two kinds, is pilot density #1 respectively：2RE/PRB/port, pilot density #2：1RE/PRB/port.The basic pilot patterns Pilot density 1RE/PRB/port is had existed in sample, then, need to change is the corresponding pilot density of another code word.Such as Shown in Fig. 5 b, corresponding 4 RE of #1 will be organized and carry out associated shift, for example, 4 subcarriers are moved down, the corresponding RE's of group #1 Number is 8 RE, then, the number of the practical RE occupied of each antenna port is 8/4=2, and pilot density becomes 2RE/PRB/ Port meets design requirement.That is, the corresponding pilot densities of code word #1 are 2RE/PRB/port, the corresponding pilot densities of code word #2 For 1RE/PRB/port.In this way, realizing based on a basic pilot tone pattern for the different pilot tone of different code word separate configurations Pattern, and different pilot tone patterns correspond at least one pilot density.

In embodiments of the present invention, non-limiting as example, by taking two kinds of realization methods as an example to the embodiment of the present invention into Row simple declaration.

Similarly, to simplify the description, two pilot tone patterns for corresponding respectively to two code words one is placed on total to lead It is illustrated in frequency pattern.

Mode 1

Optionally, which is based on multiple transmission comb and multiple cyclic shifts, generates at least one pilot tone pattern.

Specifically, in one RB pairs, pilot signal is mapped on symbol as defined in system, is combed and is protected using multiple transmission Different frequencies is used between each transmission comb of card, is protected come (also or phase place) using multiple cyclic shifts in the same transmission comb Demonstrate,prove the orthogonality between the corresponding pilot signal in different antennae port in each transmission comb, that is, at one in transmission comb, pass through Different cyclic shifts is distributed for different antenna ports, the corresponding pilot signal in mutiple antennas port can be in a subframe Concurrently transmit.

It should be understood that each transmission comb expression is one group of RS sequence.

With two code words, 8 transport layers (that is, 8 antenna ports), the detailed process of the generation of a pilot tone pattern is Example, illustrates the embodiment of the present invention.

As shown in figure 4, in one RB pairs, provided, pilot signal is mapped on first row symbol, together according to system When, it is two kinds to determine that the pilot tone pattern needs corresponding pilot density, is pilot density #1 respectively：2RE/PRB/port, pilot tone Density #2：1RE/PRB/port.

Ensure to use different frequencies between different transmission combs using three transmission combs.Specifically, transmission comb #1 uses number For 1,4,7,10 subcarrier, the subcarrier that transmission comb #2 is 2,5,8,11 using number, transmission comb #3 using number is 3,6, 9,12 subcarrier, this way it is ensured that each transmission comb uses different frequencies.

Meanwhile the corresponding antenna port #1 of code word #1 and the corresponding pilot signals of antenna port #2 are mapped in transmission comb #1 On, the corresponding antenna port #3 of code word #1 and the corresponding pilot signals of antenna port #4 are mapped on transmission comb #2, by code word # 2 corresponding antenna port #5 are mapped in transmission to the corresponding pilot signals of antenna port #8 and comb on #3.It is directed to transmission comb #1, day Line end mouth #1 and antenna port #2 correspond to different cyclic shifts, are directed to transmission comb #2, antenna port #3 and antenna port #4 Corresponding different cyclic shift is directed to transmission comb #3, antenna port #5 and corresponds to different cyclic shifts to antenna port #8, this Sample ensure that the orthogonality between the same upper corresponding pilot signal in different antennae port of transmission comb.

It should be noted that identical cyclic shift can be corresponded between different transmission combs, it is still, right in same transmission comb Answer different cyclic shifts.

Thus, in pilot tone pattern shown in Fig. 4, the number of antenna port #1 and the practical RE occupied of antenna port #2 are The number of the practical RE occupied of 4/2=2, pilot density 2RE/PRB/port, antenna port #3 and antenna port #4 is 4/2= The number of 2, pilot density 2RE/PRB/port, antenna port #5 to the practical RE occupied of antenna port #8 are 4/4=1, are led Frequent degree is 1RE/PRB/port, that is, the corresponding pilot densities of code word #1 are 2RE/PRB/port, and the corresponding pilot tones of code word #2 are close Degree is 1RE/PRB/port.In this way, realize for the different pilot tone pattern of different code word separate configurations, and different pilot tone patterns Corresponding at least one pilot density.

Certainly, example above is only and schematically illustrates, and can configure multiple pilot densities for multiple code words, principle is same On, meanwhile, for multiple code words, the pilot density that number is less than code word number can also be configured in the same pilot tone pattern, tool Stereoscopic relevant parameter related with channel quality determines, for example, MCS, CQI etc..

Mode 2

Optionally, the sending device be based on frequency division multiple access access FDMA and CDMA access CDMA, generate this at least one A pilot tone pattern.

Specifically, it in one RB pairs, using FDMA and CDMA, carries out code division multiplexing for different port and frequency division is multiple With.

Ibid, with two code words, 8 transport layers (that is, 8 antenna ports), the specific mistake of the generation of a pilot tone pattern For journey, the embodiment of the present invention is illustrated.

As shown in Figure 5 a, it in one RB pairs, is provided according to system, pilot signal can be mapped in first row and second On row symbol, meanwhile, it is two kinds to determine that the pilot tone pattern needs corresponding pilot density, is pilot density #1 respectively：4RE/ PRB/port, pilot density #2：2RE/PRB/port.

Code word #1 respective antennas port #1 to antenna port #4, code word #2 respective antennas port #5 to antenna port #8, with Two antenna ports use FDMA to realize frequency division between being one group, different groups, different using CDMA realizations with the antenna port between group Orthogonality between antenna port.

In fig 5 a, antenna port #1 and antenna port #2 uses identical running time-frequency resource, antenna port #1 and antenna end Mouth #2 carries out the multiplexing for the running time-frequency resource using different code resources, then, antenna port #1 and antenna port #2 are practical The number of the RE of occupancy is 8/2=4, pilot density 4RE/PRB/port.Similarly, antenna port #3 and antenna port #4 are practical The number of the RE of occupancy, which is that 8/2=4, pilot density 4RE/PRB/port, antenna port #5 and antenna port #6 are practical, to be occupied RE number be the practical RE occupied of 4/2=2, pilot density 2RE/PRB/port, antenna port #7 and antenna port #8 Number be 4/2=2, pilot density 2RE/PRB/port.That is, the corresponding pilot densities of code word #1 are 4RE/PRB/port, The corresponding pilot densities of code word #2 are 2RE/PRB/port.In this way, realizing two kinds of pilot tones of configuration in the same pilot tone pattern Density.

It is non-limiting as example, as shown in Figure 5 b, or antenna port #1 is identical to antenna port #4 configurations Running time-frequency resource, antenna port #1 use different code resources to carry out the multiplexing for the running time-frequency resource between antenna port #4, So, the number of the practical RE occupied of antenna port #1 to antenna port #4 is 16/4=4, pilot density 4RE/PRB/ port.Similarly, the number of the practical RE occupied of antenna port #5 and antenna port #6 is 4/2=2, pilot density 2RE/PRB/ The number of the practical RE occupied of port, antenna port #7 and antenna port #8 is 4/2=2, pilot density 2RE/PRB/port. That is, the corresponding pilot densities of code word #1 are 4RE/PRB/port, the corresponding pilot densities of code word #2 are 2RE/PRB/port.This Sample realizes two kinds of pilot densities of configuration in the same pilot tone pattern.

So specific implementation can be a variety of, above-mentioned realization method is only to schematically illustrate, and should not be constituted to the present invention It limits.

It should also be understood that multiple pilot densities can be configured for multiple code words, principle be same as above, meanwhile, for multiple code words, The pilot density that number is less than code word number can also be configured in the same pilot tone pattern, it is specific to regard with channel quality related phase Related parameter determines, for example, MCS, CQI etc..

Also, in step s 110, the receiving device of pilot signal (hereinafter, for the ease of distinguishing and illustrating, is denoted as reception Equipment #A) it can determine above-mentioned at least one pilot tone pattern, also, receiving device #A determines at least one pilot tone pattern Process determines that at least one process of pilot tone pattern is similar to above-mentioned sending device #A, here, in order to avoid repeating, omits it It is described in detail.

In S120, sending device #A is according at least one pilot tone pattern, indicated by least one pilot tone pattern Running time-frequency resource on pilot signal transmitted.

As a result, in S120, receiving device #A can receive the pilot signal being carried on the running time-frequency resource, to, Complete the transmission process of the pilot signal.Receiving device #A is before receiving the pilot signal, it is necessary first to determine at which The pilot signal is received in frequency resource, can just be properly received the pilot signal in this way.

In the following, being illustrated to the indicating mode for being used to indicate at least one pilot tone pattern.Optionally, the sending device The first instruction information is sent to the receiving device, which is used to indicate at least one pilot tone pattern, in order to The receiving device receives the pilot signal on the running time-frequency resource indicated by least one pilot tone pattern.

That is, sending device #A after having determined at least one pilot tone pattern, will indicate information #1 (that is, the first instruction is believed An example in breath) it is sent to receiving device #A, in this way, receiving device #A can determine carrying pilot tone letter according to instruction information #1 Number running time-frequency resource.

Instruction information #1 may be used various ways and be indicated.Optionally, instruction information #1 is to be used to indicate this at least The control signaling of one pilot tone pattern, for example, Downlink Control Information DCI and high-level signaling etc..

Optionally, correspondences of the instruction information #1 between the MCS and at least one pilot tone pattern.

Receiving device #A can receive the control signaling that sending device #A is sent, for informing before receiving pilot signal The corresponding MCS of receiving device #A current code words, to which receiving device #A can be according between MCS and at least one pilot tone pattern Correspondence, determine at least one pilot tone pattern.

Of course, it is possible to by the correspondence storage receiving device #A between MCS and pilot tone pattern, to sending device #A It can not have to send the correspondence between the MCS and at least one pilot tone pattern, receiving device #A is determining current code word After corresponding MCS, so that it may determine at least one pilot tone pattern with the above-mentioned correspondence stored according to oneself.

More than, in conjunction with the method that transmission pilot signal according to the ... of the embodiment of the present invention is described in detail in Fig. 1 to Fig. 5, in the following, The device of transmission pilot signal according to the ... of the embodiment of the present invention is described in conjunction with Fig. 6 to Fig. 9, technology is special described in embodiment of the method Sign is equally applicable to following device embodiment.

Fig. 6 is the schematic block diagram of the device 200 of transmission pilot signal according to the ... of the embodiment of the present invention.

As shown in fig. 6, the device 200 includes：

Determination unit 210, for according at least one code word, determining at least one pilot tone pattern, at least one pilot tone Pattern is corresponded at least one code word, wherein at least one pilot tone pattern corresponds to the close of at least one pilot signal Degree；

Transmission unit 220, for according at least one pilot tone pattern, indicated by least one pilot tone pattern when The pilot signal is sent in frequency resource.

Therefore, the device of transmission pilot signal provided in an embodiment of the present invention can carry out pilot patterns according to different code words The separate configurations of sample, and different pilot tone patterns correspond at least one pilot density, that is, it can be determined according to different code words for passing The pilot resources of defeated pilot signal, to reasonable employment system time frequency resource, meanwhile, improve the efficiency of transmission of data.

Optionally, which is specifically used for：

According at least one code word, modulate and coding strategy MCS corresponding at least one code word is determined；

According to the MCS, determine that at least one pilot tone pattern, the MCS correspond at least one pilot tone pattern.

Optionally, which is specifically used for：

According at least one code word, at least one pilot density corresponding at least one code word is determined；

According at least one pilot density, at least one pilot tone pattern is determined.

Optionally, which is additionally operable to：

Determine a basic pilot tone pattern；And

The determination unit is specifically used for：

According at least one code word and the basic pilot tone pattern, at least one pilot tone pattern is determined.

Optionally, which is specifically used for：

According to the MCS and the basic pilot tone pattern, at least one pilot tone pattern is determined.

Optionally, which is additionally operable to：

The first instruction information is sent to receiving device, which is used to indicate at least one pilot tone pattern, In order to which the receiving device receives the pilot signal on the running time-frequency resource indicated by least one pilot tone pattern.

The device 200 of transmission pilot signal according to the ... of the embodiment of the present invention can correspond in the above method 100 for holding The sending device of row method 100, and each unit in the device 200 or module are respectively used to execute and be sent in the above method 100 Each action performed by equipment or processing procedure, here, in order to avoid repeating, description is omitted.

Fig. 7 is the schematic block diagram of the device 300 of transmission pilot signal according to the ... of the embodiment of the present invention.

As shown in fig. 7, the device 300 includes：

Determination unit 310, for according at least one code word, determining at least one pilot tone pattern, at least one pilot tone Pattern is corresponded at least one code word, wherein at least one pilot tone pattern corresponds to the close of at least one pilot signal Degree；Or

Receiving unit 320, the first instruction information for receiving sending device transmission, the first instruction information are used to indicate At least one pilot tone pattern；

The receiving unit 320 is additionally operable to：According at least one pilot tone pattern, indicated by least one pilot tone pattern Running time-frequency resource on receive the pilot signal.

The determination unit 310 is specifically used for：

Optionally, which is specifically used for：

Optionally, which is additionally operable to：Determine a basic pilot tone pattern；And

The determination list 310 is specifically used for：

Optionally, which is specifically used for：

The device 300 of transmission pilot signal according to the ... of the embodiment of the present invention can correspond in the above method 100 for holding The receiving device of row method 100, and each unit in the device 300 or module are respectively used to execute and be received in the above method 100 Each action performed by equipment or processing procedure, here, in order to avoid repeating, description is omitted.

As shown in figure 8, the sending device 400 includes processor 410, transceiver 420 and memory 430, wherein the processing It is communicated by internal connecting path between device 410, transceiver 420 and memory 430.The memory 430 refers to for storing It enables, which is used to execute the instruction of the memory 430 storage, is believed with controlling the transceiver 420 and receiving signal or send Number.

Wherein, processor 410, for according at least one code word, determining at least one pilot tone pattern, this is at least one Pilot tone pattern is corresponded at least one code word, wherein at least one pilot tone pattern corresponds at least one pilot signal Density；

The transceiver 420, for according at least one pilot tone pattern, indicated by least one pilot tone pattern when The pilot signal is sent in frequency resource.

Therefore, the sending device of transmission pilot signal provided in an embodiment of the present invention, can be led according to different code words The separate configurations of frequency pattern, and different pilot tone patterns correspond at least one pilot density, that is, it can be determined and be used according to different code words In the pilot resources of transmission pilot signal, to reasonable employment system time frequency resource, meanwhile, improve the efficiency of transmission of data.

Optionally, which is specifically used for：

The processor 410 is specifically used for：

Optionally, which is specifically used for：

Optionally, which is additionally operable to：

It should be understood that in embodiments of the present invention, which can be central processing unit (central Processing unit, referred to as " CPU "), which can also be other general processors, digital signal processor (DSP), application-specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other programmable logic device, discrete gate Or transistor logic, discrete hardware components etc..General processor can be that microprocessor or the processor can also It is any conventional processor etc..

The memory 430 may include read-only memory and random access memory, and to processor 830 provide instruction and Data.The a part of of memory 430 can also include nonvolatile RAM.For example, memory 430 can also be deposited Store up the information of device type.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 410 Or the instruction of software form is completed.The step of localization method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hard Part processor executes completion, or in processor 410 hardware and software module combination execute completion.Software module can position In random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register In the storage medium of equal this fields maturation.The storage medium is located at memory 430, and processor 410 reads the letter in memory 430 Breath, in conjunction with the step of its hardware completion above method.To avoid repeating, it is not detailed herein.

Sending device 400 according to the ... of the embodiment of the present invention can correspond in the above method 100 for executing method 100 The device 200 of sending device and transmission pilot signal according to the ... of the embodiment of the present invention, and each list in the sending device 400 Member or module are respectively used to execute in the above method 100 each action or processing procedure performed by sending device, here, in order to keep away Exempt to repeat, description is omitted.

As shown in figure 9, the receiving device 500 includes processor 510, transceiver 520 and memory 530, wherein the processing It is communicated by internal connecting path between device 510, transceiver 520 and memory 530.The memory 530 refers to for storing It enables, which is used to execute the instruction of the memory 530 storage, is believed with controlling the transceiver 520 and receiving signal or send Number.

Wherein, processor 510, for according at least one code word, determining at least one pilot tone pattern, this is at least one Pilot tone pattern is corresponded at least one code word, wherein at least one pilot tone pattern corresponds at least one pilot signal Density；Or,

The transceiver 520, the first instruction information for receiving sending device transmission, the first instruction information are used to indicate At least one pilot tone pattern；

The transceiver 520 is additionally operable to, according at least one pilot tone pattern, indicated by least one pilot tone pattern The pilot signal is received on running time-frequency resource.

Therefore, the receiving device of transmission pilot signal provided in an embodiment of the present invention, can be led according to different code words The separate configurations of frequency pattern, and different pilot tone patterns correspond at least one pilot density, that is, it can be determined and be used according to different code words In the pilot resources of transmission pilot signal, to reasonable employment system time frequency resource, meanwhile, improve the efficiency of transmission of data.

Optionally, which is specifically used for：

The processor 510 is specifically used for：

Optionally, which is specifically used for：

The memory 530 may include read-only memory and random access memory, and to processor 830 provide instruction and Data.The a part of of memory 530 can also include nonvolatile RAM.For example, memory 530 can also be deposited Store up the information of device type.

During realization, each step of the above method can pass through the integrated logic circuit of the hardware in processor 510 Or the instruction of software form is completed.The step of localization method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in hard Part processor executes completion, or in processor 510 hardware and software module combination execute completion.Software module can position In random access memory, flash memory, read-only memory, programmable read only memory or electrically erasable programmable memory, register In the storage medium of equal this fields maturation.The storage medium is located at memory 530, and processor 510 reads the letter in memory 530 Breath, in conjunction with the step of its hardware completion above method.To avoid repeating, it is not detailed herein.

Receiving device 500 according to the ... of the embodiment of the present invention can correspond in the above method 100 for executing method 100 The device 300 of receiving device and transmission pilot signal according to the ... of the embodiment of the present invention, and each list in the receiving device 500 Member or module are respectively used to execute in the above method 100 each action or processing procedure performed by receiving device, here, in order to keep away Exempt to repeat, description is omitted.

It should be understood that in various embodiments of the present invention, size of the sequence numbers of the above procedures is not meant to execute suitable The execution sequence of the priority of sequence, each process should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit is drawn Point, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for The mutual coupling, direct-coupling or communication connection of opinion can be the INDIRECT COUPLING by some interfaces, device or unit Or communication connection, can be electrical, machinery or other forms.

This may or may not be physically separated as the unit that separating component illustrates, be shown as unit Component may or may not be physical unit, you can be located at a place, or may be distributed over multiple nets On network unit.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme 's.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.

If the function is realized in the form of SFU software functional unit and when sold or used as an independent product, Ke Yicun Storage is in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially right in other words The part of part or the technical solution that the prior art contributes can be expressed in the form of software products, the calculating Machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be personal Computer, server or network equipment etc.) execute all or part of step of each embodiment this method of the present invention.And it is preceding The storage medium stated includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory The various media that can store program code such as (RAM, Random Access Memory), magnetic disc or CD.

More than, specific implementation mode only of the invention, but the protection domain of the embodiment of the present invention is not limited thereto, and is appointed What those familiar with the art can readily occur in variation or replace in the technical scope that the embodiment of the present invention discloses It changes, should all cover within the protection domain of the suitable private interests of the present invention.Therefore, the protection domain of the embodiment of the present invention should be with power Subject to the protection domain that profit requires.

Claims

1. a kind of method of transmission pilot signal, which is characterized in that the method includes：

Sending device determines at least one pilot tone pattern according at least one code word, at least one pilot tone pattern with it is described At least one code word corresponds, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal；

The sending device is according at least one pilot tone pattern, the time-frequency money indicated by least one pilot tone pattern The pilot signal is sent on source.

2. according to the method described in claim 1, it is characterized in that, the sending device determines extremely according at least one code word A few pilot tone pattern, including：

The sending device determines modulate and coding plan corresponding at least one code word according at least one code word Slightly MCS；

The sending device determines that at least one pilot tone pattern, the MCS correspond to described at least one according to the MCS A pilot tone pattern.

3. according to the method described in claim 1, it is characterized in that, the sending device determines extremely according at least one code word A few pilot tone pattern, including：

The sending device determines a kind of pilot tone corresponding at least one code word according at least one code word Density；

4. according to the method in any one of claims 1 to 3, which is characterized in that at least one pilot tone pattern be from It is determined in the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

5. according to the method described in claim 1, it is characterized in that, the method further includes：

The sending device determines a basic pilot tone pattern；And

The sending device determines at least one pilot patterns according at least one code word and the basic pilot tone pattern Sample.

6. according to the method described in claim 5, it is characterized in that, the sending device is according at least one code word and institute Basic pilot tone pattern is stated, determines at least one pilot tone pattern, including：

7. method according to any one of claim 1 to 6, which is characterized in that the method further includes：

The sending device sends the first instruction information to receiving device, and the first instruction information is used to indicate described at least one A pilot tone pattern, received on the running time-frequency resource indicated by least one pilot tone pattern in order to the receiving device described in Pilot signal.

8. a kind of method of transmission pilot signal, which is characterized in that the method includes：

Receiving device determines at least one pilot tone pattern according at least one code word, at least one pilot tone pattern with it is described At least one code word corresponds, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal；Or

The receiving device receives the first instruction information that sending device is sent, the first instruction information be used to indicate it is described extremely A few pilot tone pattern；

The receiving device is according at least one pilot tone pattern, the time-frequency money indicated by least one pilot tone pattern The pilot signal is received on source.

9. according to the method described in claim 8, it is characterized in that, the receiving device determines extremely according at least one code word A few pilot tone pattern, including：

The receiving device determines modulate and coding plan corresponding at least one code word according at least one code word Slightly MCS；

The receiving device determines that at least one pilot tone pattern, the MCS correspond to described at least one according to the MCS A pilot tone pattern.

10. according to the method described in claim 8, it is characterized in that, the receiving device determines extremely according at least one code word A few pilot tone pattern, including：

The receiving device determines at least one pilot tone corresponding at least one code word according at least one code word Density；

11. the method according to any one of claim 8 to 10, which is characterized in that at least one pilot tone pattern is It is determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

12. according to the method described in claim 8, it is characterized in that, the method further includes：

The receiving device determines a basic pilot tone pattern；And

The receiving device determines at least one pilot patterns according at least one code word and the basic pilot tone pattern Sample.

13. according to the method for claim 12, which is characterized in that the receiving device according at least one code word and The basic pilot tone pattern determines at least one pilot tone pattern, including：

14. a kind of device of transmission pilot signal, which is characterized in that described device includes：

Determination unit, for according at least one code word, determining at least one pilot tone pattern, at least one pilot tone pattern with At least one code word corresponds, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal；

Transmission unit is used for according at least one pilot tone pattern, in the time-frequency indicated by least one pilot tone pattern The pilot signal is sent in resource.

15. device according to claim 14, which is characterized in that the determination unit is specifically used for：

16. device according to claim 14, which is characterized in that the determination unit is specifically used for：

17. the device according to any one of claim 14 to 16, which is characterized in that at least one pilot tone pattern is It is determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

18. device according to claim 14, which is characterized in that the determination unit is additionally operable to：

Determine a basic pilot tone pattern；And

The determination unit is specifically used for：

19. device according to claim 18, which is characterized in that the determination unit is specifically used for：

20. the device according to any one of claim 14 to 19, which is characterized in that the transmission unit is additionally operable to：

The first instruction information is sent to receiving device, the first instruction information is used to indicate at least one pilot tone pattern, In order to which the receiving device receives the pilot signal on the running time-frequency resource indicated by least one pilot tone pattern.

21. a kind of device of transmission pilot signal, which is characterized in that described device includes：

Determination unit, for according at least one code word, determining at least one pilot tone pattern, at least one pilot tone pattern with At least one code word corresponds, wherein at least one pilot tone pattern corresponds to the density of at least one pilot signal； Or

Receiving unit, the first instruction information for receiving sending device transmission, the first instruction information is used to indicate described At least one pilot tone pattern；

The receiving unit is additionally operable to：According at least one pilot tone pattern, indicated by least one pilot tone pattern Running time-frequency resource on receive the pilot signal.

22. device according to claim 21, which is characterized in that the determination unit is specifically used for：

23. device according to claim 21, which is characterized in that the determination unit is specifically used for：

24. the device according to any one of claim 21 to 23, which is characterized in that at least one pilot tone pattern is It is determined from the N number of pilot tone pattern to prestore, N number of pilot tone pattern is different each other, and the N is the integer more than 1.

25. device according to claim 21, which is characterized in that the determination unit is additionally operable to：

Determine a basic pilot tone pattern；And

The determination unit is specifically used for：

26. device according to claim 25, which is characterized in that the determination unit is specifically used for：