CN103685118B

CN103685118B - The sending method and device of a kind of data

Info

Publication number: CN103685118B
Application number: CN201210334901.5A
Authority: CN
Inventors: 王新; 侯晓林; 原田笃; 须田博人
Original assignee: NTT Docomo Inc
Current assignee: NTT Docomo Inc
Priority date: 2012-09-11
Filing date: 2012-09-11
Publication date: 2018-04-27
Anticipated expiration: 2032-09-11
Also published as: JP6315928B2; JP2014057309A; CN103685118A

Abstract

This application discloses the sending method and device of a kind of data.Wherein, method includes：At least one orthogonal frequency division multiplexing multiple access is divided in the running time-frequency resource of present sub-frame（OFDM）Symbol pair, two adjacent resource particle RE form a resource particle pair on the same same subcarrier of OFDM symbol centering；By at least one resource particle to being arranged to reference signal resource particle pair, by least one resource particle to being arranged to data resource particle pair；Generate OFDM symbol it is corresponding send signal when; so that adding first circulation protection interval before first resource particle in the reference signal resource particle pair and data resource particle pair, second circulation protection interval is added after second resource particle in the reference signal resource particle pair and data resource particle pair；The corresponding signal composition transmission frame that sends of the OFDM symbol of generation is sent.Technical solution disclosed in the present application, it is possible to increase the transmission quality of downlink data and reference signal.

Description

The sending method and device of a kind of data

Technical field

This application involves the sending method and device of mobile communication technology, more particularly to a kind of data.

Background technology

Orthogonal Frequency Division Multiplexing（OFDM）Technology is widely used in mobile radio communications system.3GPP Long Term Evolutions（LTE） Mobile communication system also uses transmission technologys of the OFDM as its downlink transfer physical-layer air interfaces.Based on the wireless of OFDM In communication system, each usual additional cycles prefix of OFDM symbol（CP）It is transmitted.CP is answering for OFDM symbol tail signal System, is transmitted before being attached to OFDM symbol in transmission, as a kind of protection interval, ofdm system is had certain anti-symbol Interference performance between number.When the multidiameter delay of wireless channel is less than the length of CP, the multipath of wireless channel will not cause OFDM's Intersymbol interference, system performance will not be influenced be subject to multipath.

Therefore in the communication system based on OFDM, in order to obtain preferable communication link quality, the length of CP needs to examine The distribution for considering the radio channel multi-path delay spread of application scenarios is designed.LTE specification defines two kinds of frame structures, respectively Different application scenarios are adapted to using general cyclic prefix length and extended cyclic prefix length.But both frame structures have Larger difference, it is impossible to while be applied on the different running time-frequency resources of same carrier frequency institute transmission signal, therefore there is certain office It is sex-limited.

In the application scenarios of some mobile communication, such as the ultra-large cell for communication recovery after calamity, and deployment In the mobile communication cells in mountain area etc..The channel of cell partial user may have a larger delay spread, and other users Channel circumstance it is then relatively preferable.Therefore, can be at the same time for these application scenarios, it is necessary to there is a kind of more flexible technology Service is in the user in different channels environment.

In the Chinese patent application of Application No. 200780036215.7, it is proposed that a kind of improved addition recycling-guard The method at interval（Abbreviation PS-OFDM technologies herein）, its for odd indexed OFDM symbol, by the signal of OFDM symbol afterbody Replicate, made an addition to as recycling-guard interval before the OFDM symbol；It is for the OFDM symbol of even number sequence number, OFDM symbol is first The signal replication in portion, makes an addition to after the OFDM symbol as recycling-guard interval.In this way, when two OFDM symbol transmission are different Signal when, the ability of PS-OFDM system counter intersymbol interference is identical with conventional OFDM systems；And when two OFDM symbols pass During defeated identical signal, the Phase Continuations of two OFDM symbols can be allowed using PS-OFDM technologies, so as to equivalently form one With longer cyclic prefix（CP）OFDM symbol, so when wireless channel delay spread is larger, just can resist symbol Disturbed between number.

PS-OFDM technologies are easier to be applied to existing due to the length of cyclic prefix in no modification frame structure In ofdm system.

The content of the invention

On the one hand the application proposes a kind of sending method of data, on the other hand propose a kind of dispensing device of data, uses PS-OFDM technologies to be applied in LTE wireless communication systems, downlink data and the link-quality of reference signal are improved.

The sending method for the data that the application is proposed, including：

At least one orthogonal frequency division multiplexing multiple access OFDM symbol pair, each OFDM are divided in the running time-frequency resource of present sub-frame Symbol is not to including two temporally adjacent OFDM symbols, the OFDM symbol of different OFDM symbol centerings is overlapping, same OFDM symbols Two adjacent resource particle RE form a resource particle pair on number same subcarrier of centering；

By at least one resource particle to being arranged to reference signal resource particle pair, in the reference signal resource particle pair According to the identical mode of the data made in two resource particles map the first setting reference signal；

By at least one resource particle of other resource particle centerings in addition to reference signal resource particle pair to setting For data resource particle pair, one or two data symbol is mapped in the data resource particle pair；Provided when in the data When source particle centering maps a data symbol, the data are mapped according to the identical mode of the data made in two resource particles Symbol；When mapping two data symbols in the data resource particle pair, described two data symbols are respectively mapped to In two resource particles；

Other treat is mapped in other resource particles in addition to reference signal resource particle pair and data resource particle pair Send data；

Generate OFDM symbol it is corresponding send signal when, for OFDM symbol centering reference signal resource particle to sum number According to resource particle pair so that first resource particle in the reference signal resource particle pair and data resource particle pair it Before be attached with first circulation protection interval, second in the reference signal resource particle pair and data resource particle pair money Second circulation protection interval is attached with after the particle of source；The first circulation protection interval is corresponding to first resource particle The duplication of the tail signal of time-domain signal, the second circulation protection interval are the time-domain signal corresponding to second resource particle Header signal duplication；

The corresponding signal composition that sends of the OFDM symbol of generation is sent into frame, and the transmission frame is sent.

In the embodiment of the application, this method further comprises：Believe in corresponding send of generation OFDM symbol Number when, for other resource particles in addition to reference signal resource particle pair and data resource particle pair so that in each money First circulation protection interval is attached with before the particle of source.

In the embodiment of the application, the corresponding signal that sends of OFDM symbol that generates includes：To each OFDM symbol pair, first circulation protection interval is added before first OFDM symbol, forms the first of the OFDM symbol pair The transmission signal of a OFDM symbol；Second circulation protection interval is added after second OFDM symbol, forms the OFDM symbols Number to second OFDM symbol transmission signal；The first circulation protection interval is first OFDM symbol afterbody Signal replication, the second circulation protection interval are the signal replication of second OFDM symbol stem；

It is described mapped in other resource particles of non-reference signal resource particle pair and non-data resource particle pair it is other Before data to be sent, further comprise：To first in second resource particle for mapping to OFDM symbol centering is other Data to be sent carry out phase compensation so that generation OFDM symbol is corresponding when sending signal, first other numbers to be sent According to being attached with first circulation protection interval before.

In the embodiment of the application, the corresponding signal that sends of OFDM symbol that generates includes：

To each OFDM symbol pair, additional first circulation protection interval forms the OFDM before first OFDM symbol The transmission signal of first OFDM symbol of symbol pair, the first circulation protection interval are first OFDM symbol afterbody Signal replication；Second OFDM symbol of the OFDM symbol pair is divided into two parts processing, Part I OFDM symbol bag Containing second resource particle all referring to signal resource particle pair and data resource particle centering, in other corresponding resource particles Position on fill 0；Part II OFDM symbol includes other resource particles, in corresponding reference signal resource particle and data money 0 is filled on position where second resource particle of source particle centering；Institute is added after the Part I OFDM symbol State second circulation protection interval；The first circulation protection interval is added before the Part II OFDM symbol；Afterwards, will Two parts OFDM symbol is added the transmission signal for second OFDM symbol to form the OFDM symbol pair.

It is described that at least one OFDM symbols are divided in the running time-frequency resource of present sub-frame in the embodiment of the application Number to for：According to physical layer control channel resource, indicating channel resource, physical layer broadcast channel resource, synchronous letter in frame structure Any of number resource, cell reference signals resource, demodulated reference signal resource, channel state information reference signals resource are appointed The position of meaning combination, divides at least one OFDM symbol pair so that the OFDM divided in the running time-frequency resource of present sub-frame Symbol is not on influencing the physical layer control channel, instruction any of channel and physical layer broadcast channel or the letter being combined Breath transmission, and/or, do not influence in synchronizing signal, cell reference signals, demodulated reference signal, channel state information reference signals The transmission of any one or any combination.

In the embodiment of the application, it is described by least one resource particle to being arranged to reference signal resource grain Son to including：By at least one resource particle set on resource each subcarrier in the block to being arranged to reference signal resource grain Son is right.

In the embodiment of the application, it is described by least one resource particle to being arranged to reference signal resource grain Son to including：According to physical layer control channel resource, indicating channel resource, physical layer broadcast channel resource, synchronization in frame structure Any of signal resource, cell reference signals resource, demodulated reference signal resource, channel state information reference signals resource or The position of resource particle where any combination, sets available resources particle in the OFDM symbol pair marked off in setting resource block It is right；

If available resources particle is to for two pairs or more than two pairs on a subcarrier of the setting resource block, by the son At least one available resources particle on carrier wave is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the running time-frequency resource of the present sub-frame includes not transmitting main and auxiliary synchronization Signal, physical layer broadcast channel and uplink and downlink switching guard interval GP but transmitting physical layer control channel, cell reference signals and The resource block of channel state information reference signals, and the resource block is using OFDM symbol as abscissa, from left to right according to OFDM Order arrangement of the symbol transmission time after arriving first；Using subcarrier as ordinate, from top to bottom according to sub-carrier frequencies from greatly to Small order arrangement；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from a left side The first OFDM symbol is divided into third and fourth right OFDM symbol, and second is divided into, the 6th and the 7th OFDM symbol OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol draw It is divided into the 4th OFDM symbol and the 5th OFDM symbol pair is divided into, the 13rd and the 14th OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol pair The resource particle at second, the four, the six, the eight, the tenth and the 12nd sub-carrier positions from top to bottom is to being arranged to join Examine signal resource particle pair；By the 5th OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st Resource particle at sub-carrier positions is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the running time-frequency resource of the present sub-frame includes not transmitting main synchronous letter Number, physical layer broadcast channel and uplink and downlink switching guard interval GP but transmission auxiliary synchronous signals, physical layer control channel, cell The resource block of reference signal and channel state information reference signals, and the resource block is using OFDM symbol as abscissa, from a left side to The right order according to OFDM symbol transmission time after arriving first arranges；Using subcarrier as ordinate, from top to bottom according to subcarrier The order arrangement of frequency from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from a left side The first OFDM symbol is divided into third and fourth right OFDM symbol, and second is divided into, the 6th and the 7th OFDM symbol OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol draw It is divided into the 4th OFDM symbol and the 5th OFDM symbol pair is divided into, the 12nd and the 13rd OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol pair The resource particle at second, the four, the six, the eight, the tenth and the 12nd sub-carrier positions from top to bottom is to being arranged to join Examine signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st Resource particle at sub-carrier positions is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the present sub-frame be include descending pilot frequency transmission time slot, uplink and downlink is cut The special subframe of protection interval GP and ascending pilot frequency transmission time slot is changed, the running time-frequency resource of the subframe includes not transmitting auxiliary synchronization Signal and physical layer broadcast channel but transmission master sync signal, physical layer control channel, cell reference signals and channel status letter The first resource block of reference signal is ceased, and the first resource block is accorded with according to OFDM from left to right using OFDM symbol as abscissa The order arrangement of number transmission time after arriving first；Using subcarrier as ordinate, from top to bottom according to sub-carrier frequencies from big to small Order arrangement；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the first resource block The the 4th and the 5th OFDM symbol from left to right is divided into the first OFDM symbol and, the 6th and the 7th OFDM symbol is divided into Second OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol Number it is divided into the 4th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first resource block In the first OFDM symbol the resource particle pair at second from top to bottom, the six, the 8th and the 12nd sub-carrier positions is set It is set to reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the 3rd, the 5th, the 7th, the 9th and Resource particle at 11 sub-carrier positions is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the running time-frequency resource of the present sub-frame further comprise not transmitting it is main, Auxiliary synchronous signals and physical layer broadcast channel but transmitting physical layer control channel, cell reference signals and channel condition information ginseng The Secondary resource block of signal is examined, and the Secondary resource block is passed according to OFDM symbol from left to right using OFDM symbol as abscissa Order arrangement of the defeated time after arriving first；Using subcarrier as ordinate, from top to bottom according to sub-carrier frequencies from big to small suitable Sequence arranges；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the Secondary resource block The the 4th and the 5th OFDM symbol from left to right is divided into the first OFDM symbol and, the 6th and the 7th OFDM symbol is divided into Second OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol Number it is divided into the 4th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the Secondary resource block In the first OFDM symbol the resource particle pair at second from top to bottom, the six, the 8th and the 12nd sub-carrier positions is set It is set to reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the 3rd, the 5th, the 7th, the 9th and Resource particle at 11 sub-carrier positions is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the running time-frequency resource of the present sub-frame includes not transmitting master sync signal With uplink and downlink switching guard interval GP but transmitting physical layer broadcast channel, physical layer control channel, cell reference signals, channel The resource block of state information reference signals, demodulated reference signal and auxiliary synchronous signals, and the resource block is using OFDM symbol as horizontal stroke Coordinate, arranges according to order of the OFDM symbol transmission time after arriving first from left to right；Using subcarrier as ordinate, from top to bottom Arranged according to the order of sub-carrier frequencies from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from a left side The first OFDM symbol is divided into third and fourth right OFDM symbol, and second is divided into, the 6th and the 7th OFDM symbol OFDM symbol is divided into the 3rd OFDM symbol pair to, the 12nd and the 13rd OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol pair The resource particle at the three, the six, the 9th and the 12nd sub-carrier positions from top to bottom is to being arranged to reference signal resource Particle pair；By the 3rd OFDM symbol to the resource grains at second from top to bottom, the five, the 8th and the 11st sub-carrier positions Son is to being arranged to reference signal resource particle pair.

In the embodiment of the application, other data to be sent include：Cell reference signals, channel status At least one of data that information reference signal and use cell reference signals demodulate.

In the embodiment of the application, the first setting reference signal includes cell reference signals, demodulation ginseng Examine at least one of signal and channel state information reference signals；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to for：According to making OFDM symbol pair Position takes being positioned proximate to for OFDM symbol, and the number of OFDM symbol pair and first with the first setting reference signal in LTE Setting reference signal takes the consistent principle of number of OFDM symbol in LTE, is divided in the running time-frequency resource of present sub-frame A few OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to for：According to making reference signal resource The position of particle pair takes being positioned proximate to for resource particle, and reference signal resource grain with the first setting reference signal in LTE The number of the son pair principle consistent with the number that the first setting reference signal takes resource particle in LTE, by least one money Source particle is to being arranged to reference signal resource particle pair.

In the embodiment of the application, the first setting reference signal includes cell reference signals；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：In each resource block, The resource block is arranged according to order of the OFDM symbol transmission time after arriving first from left to right using OFDM symbol as abscissa Row, using subcarrier as ordinate, and arrange according to sub-carrier frequencies order from big to small from top to bottom, by the resource block from Left-to-right first and second OFDM symbols are divided into the first OFDM symbol and are divided into, third and fourth OFDM symbol Two OFDM symbols are divided into, the 5th and the 6th OFDM symbol the 3rd OFDM symbol and, the 8th and the 9th OFDM symbol are drawn Be divided into the 4th OFDM symbol to, the tenth and the 11st OFDM symbol be divided into the 5th OFDM symbol to, the 12nd and the 13rd A OFDM symbol is divided into the 6th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol pair In resource particle at first and the 7th sub-carrier positions from top to bottom to being arranged to the reference of corresponding first antenna port Signal resource particle pair, by the 3rd OFDM symbol to the resource particle pair at the 4th and the tenth sub-carrier positions from top to bottom The reference signal resource particle pair of corresponding first antenna port is arranged to, by the 4th OFDM symbol to first from top to bottom and the Resource particle at seven sub-carrier positions is to being arranged to the reference signal resource particle pair of corresponding first antenna port, by the 6th OFDM symbol is to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding first antenna end The reference signal resource particle pair of mouth；At the 4th and the tenth sub-carrier positions of the first OFDM symbol centering from top to bottom Resource particle is to being arranged to the reference signal resource particle pair of corresponding second antenna port, by the 3rd OFDM symbol to from top to bottom First and the 7th sub-carrier positions at resource particle to being arranged to the reference signal resource grain of corresponding second antenna port Son is right, by the 4th OFDM symbol to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding The reference signal resource particle pair of second antenna port, by the 6th OFDM symbol to first from top to bottom and the 7th subcarrier Resource particle at position is to being arranged to the reference signal resource particle pair of corresponding second antenna port；By the second OFDM symbol pair In resource particle at first and the 7th sub-carrier positions from top to bottom to being arranged to the reference of corresponding third antenna port Signal resource particle pair, by the 5th OFDM symbol to the resource particle pair at first from top to bottom and the 7th sub-carrier positions It is arranged to the reference signal resource particle pair of corresponding third antenna port；By the second OFDM symbol to the 4th from top to bottom and Resource particle at ten sub-carrier positions is to being arranged to the reference signal resource particle pair of corresponding 4th antenna port, by the 5th OFDM symbol is to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding 4th antenna end The reference signal resource particle pair of mouth.

In the embodiment of the application, other data to be sent include：The cell reference signals, demodulation Reference signal, physical layer control in reference signal and channel state information reference signals in addition to the described first setting reference signal At least one of channel resource, indicating channel resource, physical layer broadcast channel resource and synchronizing signal resource.

It is described that at least one OFDM symbols are divided in the running time-frequency resource of present sub-frame in the embodiment of the application Number to before, further comprising：In the user for judging each resource block in the running time-frequency resource of present sub-frame to be received, if exist Channel quality and receiving terminal meet the user of preset condition, such as exist, then at least one is divided in the running time-frequency resource of present sub-frame A OFDM symbol pair；

Other resource particles in addition to reference signal resource particle pair and data resource particle pair include：Channel matter The resource to be received all resource particles in the block for the user that amount and receiving terminal are unsatisfactory for preset condition.

The dispensing device for the data that the application proposes, including：

Running time-frequency resource division unit is more for dividing at least one Orthogonal Frequency Division Multiplexing in the running time-frequency resource of present sub-frame Location OFDM symbol pair, each OFDM symbol is to including two temporally adjacent OFDM symbols, the OFDM of different OFDM symbol centerings Symbol is not overlapping；Two adjacent resource particle RE form a resource particle on the same same subcarrier of OFDM symbol centering It is right, by least one resource particle to being arranged to reference signal resource particle pair；By at least one of surplus resources particle centering Resource particle is to being arranged to data resource particle pair；

Data mapping unit, in the reference signal resource particle pair according to the data in making two resource particles Identical mode maps the first setting reference signal；One or two data symbol is mapped in the data resource particle pair； When mapping a data symbol in the data resource particle pair, according to the identical side of the data made in two resource particles Formula maps the data symbol；When mapping two data symbols in the data resource particle pair, by described two data Symbol is respectively mapped in two resource particles；Other in addition to reference signal resource particle pair and data resource particle pair Other data to be sent are mapped in resource particle；

Frame generation unit is sent, for generating the corresponding transmission signal of OFDM symbol, and the OFDM symbol pair that will be generated The transmission signal composition answered sends frame；Wherein, in the corresponding transmission signal of generation OFDM symbol, for each OFDM symbol pair In reference signal resource particle pair and data resource particle pair so that in the reference signal resource particle pair and data resource First circulation protection interval is attached with before first resource particle of particle centering, in the reference signal resource particle pair and Second circulation protection interval is attached with after second resource particle of data resource particle centering；Between the first circulation protection The duplication of the tail signal for the time-domain signal being divided into corresponding to first resource particle, the second circulation protection interval are second The duplication of the header signal of time-domain signal corresponding to a resource particle；

Data transmission unit, for the transmission frame of generation to be sent.

In the embodiment of the application, the transmission frame generation unit is further corresponding in generation OFDM symbol When sending signal so that be added with before other resource particles of non-reference signal resource particle pair and non-data resource particle pair First circulation protection interval.

In the embodiment of the application, the transmission frame generation unit is to each OFDM symbol pair, at first Additional first circulation protection interval before OFDM symbol, forms the transmission letter of first OFDM symbol of the OFDM symbol pair Number；Second circulation protection interval is added after second OFDM symbol, forms second OFDM symbols of the OFDM symbol pair Number transmission signal；

The data mapping unit is in non-reference signal resource particle pair and other resource particles of non-data particle pair Before mapping other data to be sent, further to by first in second resource particle for mapping to OFDM symbol centering Other data to be sent carry out phase compensations so that generation OFDM symbol is corresponding when sending signal, and described first is other pending Send and be attached with first circulation protection interval before data.

In the embodiment of the application, the transmission frame generation each OFDM symbol pair of single pair, at first Additional first circulation protection interval forms the transmission signal of first OFDM symbol of the OFDM symbol pair before OFDM symbol, The first circulation protection interval is the signal replication of first OFDM symbol afterbody；By the second of the OFDM symbol pair A OFDM symbol is divided into two parts processing, and Part I OFDM symbol is included all referring to signal resource particle pair and data resource Second resource particle of particle centering, 0 is filled on the position of other corresponding resource particles；Part II OFDM symbol includes Other resource particles, the position where second resource particle in corresponding reference signal resource particle and data resource particle pair Put filling 0；The second circulation protection interval is added after the Part I OFDM symbol；In the Part II The first circulation protection interval is added before OFDM symbol；Afterwards, two parts OFDM symbol is added to form the OFDM symbols Number to second OFDM symbol transmission signal.

In the embodiment of the application, physical layer control of the running time-frequency resource division unit in frame structure Channel resource, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, cell reference signals resource, demodulation ginseng The position of any of signal resource, channel state information reference signals resource or any combination is examined, in the time-frequency of present sub-frame At least one OFDM symbol pair is divided in resource so that the OFDM symbol divided is not on influencing the physical layer control letter Road, instruction any of channel and physical layer broadcast channel or any combination information transmission, and/or, do not influence synchronizing signal, The transmission of any of cell reference signals, demodulated reference signal, channel state information reference signals or any combination.

In the embodiment of the application, the running time-frequency resource division unit will set the resource load in the block per height At least one resource particle on ripple is to being arranged to reference signal resource particle pair；Alternatively, the running time-frequency resource division unit root According to physical layer control channel resource in frame structure, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, small Any of area's reference signal resource, demodulated reference signal resource, channel state information reference signals resource or any combination institute In the position of resource particle, available resources particle pair is set in the OFDM symbol pair marked off in setting resource block；Described When available resources particle is to for two pairs or more than two pairs on one subcarrier of setting resource block, by least one on the subcarrier A available resources particle is to being arranged to reference signal resource particle pair.

The running time-frequency resource division unit is accounted for the first setting reference signal in LTE according to making the position of OFDM symbol pair With being positioned proximate to for OFDM symbol, and the number of OFDM symbol pair takes OFDM symbol with the first setting reference signal in LTE The consistent principle of number, at least one OFDM symbol pair is divided in the running time-frequency resource of present sub-frame；According to making reference signal The position of resource particle pair takes being positioned proximate to for resource particle with the first setting reference signal in LTE, and reference signal provides The number of source particle pair takes the consistent principle of number of resource particle with the first setting reference signal in LTE, will at least one A resource particle is to being arranged to reference signal resource particle pair.

In the embodiment of the application, which further comprises judging unit, to be received current for judging In the user of each resource block in the running time-frequency resource of subframe, if there are the use that channel quality and receiving terminal meet preset condition Family；

The running time-frequency resource division unit performs institute there are during the user that channel quality and receiving terminal meet preset condition State the operation that at least one OFDM symbol pair is divided in the running time-frequency resource of present sub-frame；

In the application, due to having divided OFDM symbol pair and reference signal resource grain in the running time-frequency resource of present sub-frame Son pair and data resource particle pair, and cause reference signal resource particle to transmitting identical reference signal data, data resource Particle is to can also transmit identical data；And when generation sends frame, before first resource particle of the resource particle pair First circulation protection interval is added, second circulation protection interval is added after second resource particle of the resource particle pair, So that the Phase Continuation of the reference signal resource particle pair and data resource particle pair, so as to equivalently form a tool There is longer cyclic prefix（CP）OFDM symbol, so when wireless channel delay spread is larger, just can resist symbol Between disturb, so as to preferably protect the reference signal and the data of data resource particle centering.

Wherein, the reference signal of reference signal resource particle centering transmission can be existing various reference signals, also may be used Newly-increased reference signal is thought, when it is newly-increased reference signal, by being controlled according to physical layer in frame structure in the application Channel resource, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, cell reference signals resource, demodulation ginseng The position of the special channels such as signal resource, channel state information reference signals resource and signal is examined, is provided in the time-frequency of present sub-frame OFDM symbol pair is divided in source so that the OFDM symbol divided is not on influencing the biography of the special channel and distinctive signal It is defeated, so as to achieve the compatibility of maximum with existing LTE specification.

In addition, the division to OFDM symbol pair and reference signal resource particle pair can be in units of resource block, i.e., for letter Road condition is poor and supports the receiving terminal of PS-OFDM technologies, its resource block can use PS-OFDM technical finesses, for channel bar The preferable receiving terminal of part, although or for the poor receiving terminal for not supporting PS-OFDM technologies of channel condition, its resource block can be still Handled using existing LTE specification.At this time, only need to be when the application carries out data mapping, in advance in this part resource block Data in second OFDM symbol for mapping to OFDM symbol pair are subjected to phase compensation so that when production sends frame, its Phase when phase is not with using PS-OFDM technologies and handled using existing LTE specification is consistent.Alternatively, PS- will be used It is located at second OFDM of OFDM symbol pair in the resource block of OFDM technology processing and the resource block handled using existing LTE specification Symbol is divided into different part processing, the former adds second circulation protection interval after OFDM symbol, and the latter is in OFDM symbol The first circulation protection interval is added before, is added two parts OFDM symbol to form the second of the OFDM symbol pair afterwards The transmission signal of a OFDM symbol.So, on the one hand compatibility can be carried out to existing receiving terminal, on the other hand can also make The application for obtaining technical scheme is more flexible.

In addition, have the sensitive data of particular/special requirement for some, such as channel state information reference signals etc., if it will be reflected It is incident upon in second OFDM symbol of OFDM symbol pair, also can carries out phase compensation in mapping to it so that send in production During frame, phase when its phase is not with using PS-OFDM technologies and handled using existing LTE specification is consistent.Or made To add the OFDM symbol part of first circulation protection interval before OFDM symbol.So, this on the one hand can be ensured A little sensitive datas are unaffected, and on the other hand also reference signal can be protected.

Brief description of the drawings

Fig. 1 is a kind of exemplary block diagram of the sending method of data in the embodiment of the present application.

Fig. 2 is the running time-frequency resource of the first resource block when setting reference signal as cell reference signals in the application example one Divide schematic diagram.

Fig. 3 is that the running time-frequency resource of typical downlink subframe resource block in the application example two divides schematic diagram.

Fig. 4 is that a kind of running time-frequency resource of the resource block containing broadcast channel in the application example two divides schematic diagram.

Fig. 5 is that another running time-frequency resource of the resource block containing broadcast channel in the application example two divides schematic diagram.

Fig. 6 is that the running time-frequency resource of the resource block containing auxiliary synchronous signals in the application example two divides schematic diagram.

Fig. 7 is the running time-frequency resource division signal of the resource block containing master sync signal of special subframe in the application example two Figure.

Fig. 8 is the running time-frequency resource division signal of the resource block without master sync signal of special subframe in the application example two Figure.

Fig. 9 is a kind of exemplary block diagram of the dispensing device of data in the embodiment of the present application.

Embodiment

Fig. 1 is a kind of exemplary block diagram of the sending method of data in the embodiment of the present application.As shown in Figure 1, this method Include the following steps：

Step 101, at least one orthogonal frequency division multiplexing multiple access OFDM symbol pair is divided in the running time-frequency resource of present sub-frame, Each OFDM symbol is not to including two adjacent OFDM symbols, the OFDM symbol of different OFDM symbol centerings is overlapping, same Two adjacent resource particles on the same subcarrier of OFDM symbol centering（RE, Resource Element）Form a resource grains Son is right, by least one resource particle to being arranged to reference signal resource particle pair；Will be in addition to reference signal resource particle pair At least one resource particle to being arranged to data resource particle pair.

In this step, each reference signal resource particle is used for transmission identical reference signal to two upper resource particles Data.

Step 102, according to the side that the data made in two resource particles are identical in the reference signal resource particle pair Formula mapping the first setting reference signal；One or two data symbol is mapped in the data resource particle pair；When described When the centering of data resource particle maps a data symbol, institute is mapped according to the identical mode of the data made in two resource particles State data symbol；When mapping two data symbols in the data resource particle pair, described two data symbols are distinguished Map in two resource particles.

Wherein, the first setting reference signal can be existing reference signal in the prior art, or newly-increased ginseng Examine signal.

In the present embodiment, the first setting reference signal can be produced by any one sequencer, and map to reference Signal resource particle is to upper.

The first setting reference signal can be such as produced based on Gold code sequencers.If the first setting reference signal sequence For r (m), then it can be according to rule generation shown in following formula (1)：

Wherein c (n) is Gold code sequencers：

c(n)=(x₁(n+N_C)+x₂(n+N_C))mod2

x₁(n+31)=(x₁(n+3)+x₁(n))mod2

x₂(n+31)=(x₂(n+3)+x₂(n+2)+x₂(n+1)+x₂(n))mod2

Wherein N_C=1600, sequence x₁(n) initial value is x₁(0)=1,x₁(n)=0, n=1,2 ..., 30, sequence x₂(n) Initial value for one setting sequence.

After sequence produces, first element r (0) of r (m) can be mapped to first reference signal resource particle to upper, Two resource particles of i.e. first reference signal resource particle centering transmit r (0), and r (1) is mapped to second with reference to letter Number resource particle to upper, and so on.

Wherein, the data of each channel of physical layer can be mapped in data resource particle.Each data resource particle mapping The data symbol number penetrated（1 or 2）Receiving terminal can be notified by modes such as down control channel, broadcast singals.Certainly, as sent Have an agreement, then can be mapped by agreement in advance between end and receiving terminal.

Step 103, reflected in other resource particles in addition to reference signal resource particle pair and data resource particle pair Penetrate other data to be sent.

In this step, other data to be sent may include：Other reference signals, distinctive signal, other be not mapped to data Resource particle is to upper data of each channel of physical layer etc..

Wherein, for other resource particles pair in addition to reference signal resource particle pair and data resource particle pair, often A resource particle can also map two transmitting signals to that can map a transmitting signal.If resource particle is to mapping one Launch signal, then two resource particles transmit same signal, and otherwise two resource particles transmit two different transmitting signals. Signal number of each resource particle to mapping（1 or 2）It can notify to receive by modes such as down control channel, broadcast singals End.Certainly, as having an agreement in advance between transmitting terminal and receiving terminal, then can be mapped by agreement.

Step 104, inverse Fourier is used to the OFDM symbol that have mapped data（IFFT）Conversion generation time-domain OFDM symbol.

Step 105, generate OFDM symbol it is corresponding send signal when, to the reference signal resource of the OFDM symbol centering Particle pair and data resource particle using PS-OFDM methods to being handled.I.e. so that in the reference signal resource particle pair First circulation protection interval is attached with before first resource particle of data resource particle centering, is provided in the reference signal Second circulation protection interval is attached with after source particle pair and second resource particle of data resource particle centering.

In the present embodiment, the resource particle for carrying some certain types of sensitive datas, it is contemplated that allow its with it is existing Standard is mutually compatible, or simply for other resource grains in addition to reference signal resource particle pair and data resource particle pair Son, considers to make it mutually compatible with existing standard, at this time can will first circulation protection interval（That is cyclic prefix）It is additional to this Before resource particle.

Wherein, other resource particles in addition to reference signal resource particle pair and data resource particle pair include：OFDM Other resource particles of the symbol centering in addition to reference signal resource particle pair and data resource particle pair and it is unallocated be OFDM Resource particle in the OFDM symbol of symbol pair.

In the present embodiment, the afterbody of time-domain signal of the first circulation protection interval corresponding to first resource particle The duplication of signal, the header signal of time-domain signal of the second circulation protection interval corresponding to second resource particle Duplication.

Step 106, the corresponding signal composition that sends of the OFDM symbol of generation is sent into frame, and the transmission frame is sent out Go.

In this step, it can be sent by radio circuit by frame is sent.

In the present embodiment, for, in the corresponding transmission signal of generation OFDM symbol, being for unallocated in step 105 Resource particle in the OFDM symbol of OFDM symbol pair so that first circulation protection interval is added before each resource particle Concrete methods of realizing can be consistent with method of the prior art.

For, in the corresponding transmission signal of generation OFDM symbol, the reference for OFDM symbol centering is believed in step 105 Number resource particle pair and data resource particle pair so that in the reference signal resource particle pair and data resource particle pair Additional first circulation protection interval before first resource particle, in the reference signal resource particle pair and data resource particle Additional second circulation protection interval after second resource particle of centering；And remove reference signal resource for OFDM symbol centering Other resource particles outside particle pair and data resource particle pair so that add first circulation before each resource particle and protect The concrete methods of realizing at shield interval can have a variety of, and two of which is set forth below.

The first：Phase compensation method.

Mapped in other resource particles of non-reference signal resource particle pair and non-data resource particle pair other pending Before sending data, to the data to be sent in second resource particle for mapping to OFDM symbol centering are carried out phase compensation, So that generation OFDM symbol is corresponding when sending signal, first circulation protection interval is attached with before the data to be sent.

Afterwards, in the corresponding transmission signal of generation OFDM symbol, to each OFDM symbol pair, in first OFDM symbol First circulation protection interval is added before, forms the transmission signal of first OFDM symbol of the OFDM symbol pair；Second Additional second circulation protection interval after a OFDM symbol, forms the transmission letter of second OFDM symbol of the OFDM symbol pair Number；The first circulation protection interval is the signal replication of first OFDM symbol afterbody, between the second circulation protection It is divided into the signal replication of second OFDM symbol stem.

Wherein, specific phase compensating method can be：

If the inverse Fourier transform that system uses in step 105（IFFT）Length be N number of sampled point, second circulation protection The length at interval is M sampled point (usual M<N）, it is necessary to the resource particle for carrying out phase compensation is located at the son of IFFT serial numbers k On carrier position (0≤k ＜ N), the data that need to be mapped in the resource particle are d, actually map to the benefit in the resource particle Data after repaying are c, then as formula (2) is shown with：

Wherein j is imaginary unit, and e is the bottom of natural logrithm.

Second：Packet transaction method.

To each OFDM symbol pair, additional first circulation protection interval forms the OFDM before first OFDM symbol The transmission signal of first OFDM symbol of symbol pair, the first circulation protection interval are first OFDM symbol afterbody Signal replication；Second OFDM symbol of the OFDM symbol pair is divided into two parts processing, Part I OFDM symbol bag Containing second resource particle all referring to signal resource particle pair and data resource particle centering, corresponding except reference signal provides 0 is filled on the position of other resource particles outside source particle pair and second resource particle of data resource particle centering；The Two part OFDM symbols are included in addition to reference signal resource particle pair and second resource particle of data resource particle centering Other resource particles, where second resource particle in corresponding reference signal resource particle and data resource particle pair 0 is filled on position；The second circulation protection interval is added after the Part I OFDM symbol；In the Part II The first circulation protection interval is added before OFDM symbol；Afterwards, two parts OFDM symbol is added to form the OFDM symbols Number to second OFDM symbol transmission signal.

Above-mentioned other moneys for OFDM symbol centering in addition to reference signal resource particle pair and data resource particle pair Source particle, the concrete methods of realizing that first circulation protection interval is added before each resource particle are described.Realizing should In, carrying certain kinds that also can only to OFDM symbol centering in addition to reference signal resource particle pair and data resource particle pair The resource particle of the sensitive data of type, adds first circulation protection interval, in this case before each resource particle Specific implementation, can be similar with the above-mentioned two kinds of specific implementations enumerated.

, can be in the other of non-reference signal resource particle pair and non-data resource particle pair for example, for first method Before other data to be sent are mapped in resource particle, to by the spy in second resource particle for mapping to OFDM symbol centering Determine type sensitive data carry out phase compensation so that generation OFDM symbol it is corresponding send signal when, it is described certain types of First circulation protection interval is attached with before sensitive data.Afterwards in the corresponding transmission signal of generation OFDM symbol, to each OFDM symbol pair, first circulation protection interval is added before first OFDM symbol, forms the first of the OFDM symbol pair The transmission signal of a OFDM symbol；Second circulation protection interval is added after second OFDM symbol, forms the OFDM symbols Number to second OFDM symbol transmission signal.

And for example, for second method, to each OFDM symbol pair, first circulation is added before first OFDM symbol Protection interval forms the transmission signal of first OFDM symbol of the OFDM symbol pair, and the first circulation protection interval is institute State the signal replication of first OFDM symbol afterbody；Second OFDM symbol of the OFDM symbol pair is divided at two parts Reason, Part I OFDM symbol include all resource particles in addition to the resource particle for carrying certain types of sensitive data, 0 is filled on the position of resource particle for carrying certain types of sensitive data；It is specific that Part II OFDM symbol includes carrying The resource particle of the sensitive data of type, in corresponding all moneys in addition to the resource particle for carrying certain types of sensitive data 0 is filled on position where the particle of source；The second circulation protection interval is added after the Part I OFDM symbol； The first circulation protection interval is added before the Part II OFDM symbol；Afterwards, two parts OFDM symbol is added shape Into the transmission signal of second OFDM symbol of the OFDM symbol pair.

Wherein, if first set reference signal as LTE in existing reference signal, if for example, first setting reference signal It is during including at least one of cell reference signals, demodulated reference signal and channel state information reference signals, then above-mentioned specific The sensitive data of type can include：In the cell reference signals, demodulated reference signal and channel state information reference signals Reference signal and physical layer control channel resource, indicating channel resource, physical layer in addition to the described first setting reference signal At least one of broadcast channel resource and synchronizing signal resource.

If described first sets reference signal can wrap as newly-increased reference signal, above-mentioned certain types of sensitive data Include：At least one of cell reference signals, channel state information reference signals and data using cell reference signals demodulation.

During specific implementation, it can be carried out in the embodiment of the present application when dividing OFDM symbol pair in units of resource block.Currently Each resource block in subframe includes continuous 12 subcarriers in 14 OFDM symbols and frequency continuous in time.Then drawing Point OFDM symbol is to before, can first determine that whether the resource block is protected using PS-OFDM technologies.For example, it can set in advance Surely the condition that need to should be met using the channel quality corresponding to the resource block that PS-OFDM technologies are protected and receiving terminal, is such as believed Road quality（I.e. transmitter and its receive channel conditions between the receiver of user）Whether poor, whether receiving terminal supports PS- OFDM technology etc..If transmitter and its channel conditions received between the receiver of user are more satisfactory, then the resource block can be complete Generated using existing LTE specification, it is no longer necessary to the protection of PS-OFDM technologies.If transmitter and its receive between the receiver of user Channel conditions it is poor, and receiving terminal support PS-OFDM technologies, then the resource block can use PS-OFDM technologies protection.Resource Whether block uses PS-OFDM technologies to pass through the means such as downlink broadcast channel, control channel and notifies receiving terminal.

If there is the resource block needed using PS-OFDM technologies in the running time-frequency resource of present sub-frame, i.e., current son to be received In the user of each resource block in the running time-frequency resource of frame, there are the user that channel quality and receiving terminal meet preset condition, then may be used OFDM symbol pair is divided in the running time-frequency resource of present sub-frame, to need to be protected using PS-OFDM technologies during specific division Resource block on the basis of divided.

At this time, will be mapped to for that need not be used in present sub-frame in the resource block protected of PS-OFDM technologies The data of second symbol of OFDM symbol centering, can be using these data as removing reference signal resource particle pair and data resource Other resource particles outside particle pair are handled, or are handled as certain types of sensitive data, i.e., into line number During according to mapping, phase compensation is carried out according to formula (2) to it first, phase when making its phase with being mapped in existing LTE specification Unanimously.Alternatively, handled as the Part II data of second OFDM symbol of OFDM symbol centering.

In the embodiment of the present application, the different type of the first setting reference signal based on preliminary mapping, step 101 can have difference OFDM symbol pair and the division methods of reference signal resource particle pair and data resource particle pair.Shown separately below by two Example sets reference signal to first as existing reference signal and is that the situation of newly-increased reference signal is described respectively.

Example one：First sets reference signal as existing reference signal

For example, if first sets reference signal as the reference signal defined in existing LTE specification, such as cell reference signals （CRS）, demodulated reference signal（DMRS）, channel state information reference signals（CSI-RS）Deng.At this time, in step 101, OFDM symbols Number to division the position of OFDM symbol pair can be made to take OFDM symbol in existing LTE specification with the first setting reference signal Position（Referred to as first setting reference signal takes the position of OFDM symbol in LTE）It is close, the number of OFDM symbol pair and the The number that one setting reference signal takes OFDM symbol in existing LTE specification is consistent.After so being protected, the first setting reference The actual OFDM symbol number taken of signal takes one times of OFDM symbol number for it in existing LTE specification.Correspondingly, setting During reference signal resource particle pair, the position of reference signal resource particle pair and first can be made to set reference signal in existing LTE Being closely located to for resource particle is taken in specification, the number of reference signal resource particle pair is with the first setting reference signal existing The number that resource particle is taken in LTE specification is consistent.After protecting, the first setting actual resource grains subnumber taken of reference signal One times of resource grains subnumber is taken in existing LTE specification for it.

The first OFDM symbol pair and reference signal resource when setting reference signal as cell reference signals is shown in Fig. 2 The division methods schematic diagram of particle pair.Fig. 2 show the same transmitting time/frequency source block of four antenna ports of LTE system, this Wen Zhong, using OFDM symbol as abscissa, in case of subcarrier is ordinate.Wherein, the OFDM symbol on abscissa from Left-to-right is arranged according to order of the OFDM symbol transmission time after arriving first, and the subcarrier on ordinate is from top to bottom according to sub- load The order arrangement of wave frequency rate from big to small.As it can be seen that the resource block is made of 14 OFDM symbols, 12 are included in each OFDM symbol A subcarrier, is first according to divide 6 OFDM symbols pair in the time/frequency source block of each antenna port shown in Fig. 2, i.e. from Left-to-right first and second OFDM symbols are divided into the first OFDM symbol and are divided into, third and fourth OFDM symbol Two OFDM symbols are divided into, the 5th and the 6th OFDM symbol the 3rd OFDM symbol and, the 8th and the 9th OFDM symbol are drawn Be divided into the 4th OFDM symbol to, the tenth and the 11st OFDM symbol be divided into the 5th OFDM symbol to, the 12nd and the 13rd A OFDM symbol is divided into the 6th OFDM symbol pair.

Then the position for indicating R0, R1, R2 and R3 as shown in Figure 2 in OFDM symbol pair sets cell reference signals to provide Source particle pair, i.e., in the time/frequency source block during respective antenna port 0, by the first He of the first OFDM symbol centering from top to bottom Resource particle at 7th sub-carrier positions to being arranged to cell reference signals resource particle pair, by the 3rd OFDM symbol to from Under resource particle at the 4th and the tenth upper sub-carrier positions to being arranged to cell reference signals resource particle pair, by Four OFDM symbols are to the resource particle at first from top to bottom and the 7th sub-carrier positions to being arranged to cell reference signals Resource particle pair, by the 6th OFDM symbol to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to setting For cell reference signals resource particle pair.In the time/frequency source block during respective antenna port 1, by the first OFDM symbol centering from Under resource particle at the 4th and the tenth upper sub-carrier positions to being arranged to cell reference signals resource particle pair, by Three OFDM symbols are to the resource particle at first from top to bottom and the 7th sub-carrier positions to being arranged to cell reference signals Resource particle pair, by the 4th OFDM symbol to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to setting For cell reference signals resource particle pair, by the 6th OFDM symbol to first from top to bottom and the 7th sub-carrier positions at Resource particle is to being arranged to cell reference signals resource particle pair.In the time/frequency source block during respective antenna port 2, by second Resource particle at first and the 7th sub-carrier positions of OFDM symbol centering from top to bottom is to being arranged to cell reference signals Resource particle pair, by the 5th OFDM symbol to the resource particle at first from top to bottom and the 7th sub-carrier positions to setting For cell reference signals resource particle pair.In the time/frequency source block during respective antenna port 3, by the second OFDM symbol under Resource particle at the 4th and the tenth upper sub-carrier positions is to being arranged to cell reference signals resource particle pair, by the 5th OFDM symbol is to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to cell reference signals money Source particle pair.

Afterwards, the position without filling as shown in Figure 2 in OFDM symbol pair sets data resource particle.I.e. in correspondence In the time/frequency source block of each antenna port, by second, third, fourth, fifth and the 6th OFDM symbol to the from top to bottom 2nd, the resource particle at the three, the five, the six, the eight, the nine, the 11st and the 12nd sub-carrier positions is to being arranged to several According to resource particle pair.

The cell reference signals mapped in two resource particles of each cell reference signals resource particle centering are identical, from And form a complete shielded cell reference signals.Each resource physical layer control channel in the block（PDCCH）Upload Defeated data are sensitive data, by the data mapped in second OFDM symbol of OFDM symbol centering need before the ifft into Row phase compensation or as the Part II data in second OFDM symbol of OFDM symbol centering.

In running time-frequency resource shown in Fig. 2, the resource particle for indicating C represents the resource grains of mapping physical layer control channel data Son.The part for being filled with grid represents null resource particle, that is, retains resource.

Example two：First sets reference signal as newly-increased reference signal

And for example, if the first of preliminary mapping sets reference signal to be newly-increased for demodulating using PS-OFDM technical finesses The reference symbol of data, is denoted as Phase synchronization reference signal herein（PSRS）.In this case, if keep and existing LTE as far as possible If OFDM technology standard phase compatibility in specification, then the specific implementation in above-mentioned steps 101 can be：

When OFDM symbol pair and reference signal resource particle pair are divided in the running time-frequency resource of present sub-frame, it can ensure as far as possible Physical layer control channel in frame structure（PDCCH）, physical layer hybrid automatic repeat-request（ARQ）Indicate channel（PHICH）, physics Layer control channel format indication channel（PCFICH）, broadcast channel（PBCH）, cell reference signals（CRS）, channel condition information Reference signal（CSI-RS）, master sync signal（PSS）, secondary synchronizing signal（SSS）, uplink and downlink switching guard interval（GP）And uplink In pilot transmission time slot all or part of position with it is consistent in existing LTE.

Correspondingly, then can be according to physical layer control channel resource, indicating channel resource, physical layer broadcast channel in frame structure Resource, synchronizing signal resource and the second setting reference signal（Such as cell reference signals, demodulated reference signal and channel condition information The position of any of reference signal resource or any combination, divides at least one OFDM symbols in the running time-frequency resource of present sub-frame It is number right so that the OFDM symbol divided is not on influencing control channel, instruction any of channel and physical layer broadcast channel Or the information transmission of any combination, and/or, nor affect on the transmission of synchronizing signal and/or the second setting reference signal.

In this example, the division of OFDM symbol pair can be carried out in units of resource block.Each resource block in present sub-frame Including continuous 12 subcarriers in 14 OFDM symbols continuous in time and frequency.Then OFDM symbol pair can be according to lower section Method divides：

1）Determine whether the resource block is protected using PS-OFDM technologies.For example, can preset need to use PS- The condition that the channel quality and receiving terminal that OFDM technology is protected corresponding to resource block should meet, such as channel quality（Send out Penetrate machine and it receives channel conditions between the receiver of user）Whether poor, whether receiving terminal supports PS-OFDM technologies etc..Such as If transmitter and its channel conditions received between the receiver of user are more satisfactory, which can be advised using existing LTE completely Model generates, it is no longer necessary to the protection of PS-OFDM technologies.If transmitter and its receive channel conditions between the receiver of user compared with Difference, and receiving terminal supports PS-OFDM technologies, then the resource block can use the protection of PS-OFDM technologies.Whether resource block uses PS-OFDM technologies can notify receiving terminal by means such as downlink broadcast channel, control channels.

Certainly, in practical application, it can also give tacit consent to and all resource blocks of present sub-frame are protected using PS-OFDM technologies Shield.Then above-mentioned steps 1）It can omit.

2）Determine in current resource block with the presence or absence of physical layer control channel, instruction channel, broadcast channel, cell reference letter Number, channel state information reference signals, master sync signal, secondary synchronizing signal, uplink and downlink switching guard interval, ascending pilot frequency transmission Special channel and the signal such as time slot and reservation resource, and above-mentioned signal and the position shared by channel.

3）Divide OFDM symbol pair.Division rule can be：If (a) in existing LTE specification, some OFDM symbol whole quilt Step 2）Described in special channel or signal take, then OFDM symbol OFDM symbol not adjacent thereto forms OFDM symbol It is right.If (b) having occupied resource in some OFDM symbol in existing LTE specification, then to consider same in its adjacent OFDM symbol Whether there is occupied resource in one sub-carrier positions, should ensure the resource of OFDM symbol centering when dividing OFDM symbol pair as far as possible Particle to being taken at the same time.(c) in the OFDM symbol pair of one resource block of division, same subframe（14 OFDM symbol structures Into subframe）In all resource block（If it participates in division）OFDM symbol should be consistent to division methods.When same height When distinctive signal position is different in different resource block in frame, two criterions of the above (a) (b) should be made when dividing OFDM symbol pair All resource blocks are all set up.

By taking a resource block in typical LTE downlink subframes in Fig. 3 as an example, first and second symbols of the resource block Taken by down control channels such as PDCCH, not subdivided symbol pair.At the same time in view of cell reference signals, channel condition information The problem of reference signal and the null resource particle retained, by the third and fourth, the 6th and the 7th, the 8th and the 9th, the tenth and the 11, the 13rd and the 14th OFDM symbols are respectively divided into OFDM symbol pair.Specifically, can be by third and fourth OFDM Symbol be divided into the first OFDM symbol, the 6th and the 7th OFDM symbol is divided into the second OFDM symbol to, the 8th and the 9th A OFDM symbol be divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol be divided into the 4th OFDM symbol to, 13 and the 14th OFDM symbols are respectively divided into the 5th OFDM symbol pair.

For containing physical layer broadcast channel（PBCH）Resource block, due to consideration that broadcast channel take resource it is more, Surplus resources are smaller, can be without considering the division OFDM symbol pair in the resource block, and can be continuing with as shown in Figure 4 Frame structure in LTE specification.Alternatively, the structure shown in Fig. 5 can also be divided into according to mentioned above principle, i.e., consider physics at the same time The problem of layer control channel, cell reference signals, channel state information reference signals and null resource particle of reservation, by the 3rd He Four, the 6th and the seven, the 12nd and the 13rd OFDM symbols are respectively divided into OFDM symbol pair.Specifically, can be by the 3rd The first OFDM symbol is divided into the 4th OFDM symbol, and the second OFDM symbol is divided into, the 6th and the 7th OFDM symbol 3rd OFDM symbol pair is divided into, the 12nd and the 13rd OFDM symbol.

For including secondary synchronizing signal（SSS）Resource block, can be divided according to example shown in Fig. 6.Consider at the same time The problem of to physical layer control channel, cell reference signals, channel state information reference signals and the null resource of reservation particle, will The third and fourth, the six and the seven, the 8th and the nine, the tenth and the 11st, the 12nd and the 13rd OFDM symbol draw respectively It is divided into OFDM symbol pair.Specifically, third and fourth OFDM symbol can be divided into the first OFDM symbol to, the 6th and the 7th A OFDM symbol be divided into the second OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth The 4th OFDM symbol is divided into the 11st OFDM symbol, and the 5th is respectively divided into, the 12nd and the 13rd OFDM symbol OFDM symbol pair.The resource block of SSS is free of for other in same subframe, due to needing to keep division methods consistent, it is also desirable to Divided according to the method shown in Fig. 6.In these resource blocks, although last OFDM symbol of resource block does not include SSS, but still OFDM symbol centering cannot be included in, but to be divided according to shown in Fig. 6.

For the special subframe of time division duplex LTE, i.e., comprising 3 special time slots：Descending pilot frequency transmission time slot（DwPTS）, Upper every trade switching guard interval（GP）With ascending pilot frequency transmission time slot（UpPTS）Subframe, Fig. 7 and Fig. 8 sets forth resource Dividing condition in block containing master sync signal and without master sync signal.The division provided in figure is to configure 4 with special subframe In case of.Configure for the special subframe in other LTE specifications, can still be divided according to mentioned above principle.

Dividing condition when in Fig. 7 for comprising master sync signal, while believe in view of physical layer control channel, cell reference Number, the null resource particle of channel state information reference signals and reservation the problem of, the 4th and the 5th OFDM symbol is divided into First OFDM symbol is divided into, the 6th and the 7th OFDM symbol the second OFDM symbol to, the 8th and the 9th OFDM symbol Be divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol be divided into the 4th OFDM symbol pair.

Dividing condition when in Fig. 8 for not comprising master sync signal, due to resource block described in resource block shown in Fig. 8 and Fig. 7 In same subframe, it is therefore desirable to keep division methods consistent, it is also desirable to divided according to the method shown in Fig. 7, i.e., it is same 4th and the 5th OFDM symbol is divided into the first OFDM symbol and is divided into second to, the 6th and the 7th OFDM symbol by sample OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol draw It is divided into the 4th OFDM symbol pair.As it can be seen that in these resource blocks, although the 3rd OFDM symbol of resource block does not include main synchronization Signal, but still OFDM symbol centering cannot be included in, but to be divided according to shown in Fig. 7.

4）By at least one resource particle set on resource each subcarrier in the block to being arranged to reference signal resource Particle pair.

Alternatively, also can be according to step 2）Described in occupancy situation in resource particle of special channel or signal, first Available resources particle pair is set in the OFDM symbol pair marked off, the setting principle of available resources particle pair can be for：(a) If there is one by step 2 in two adjacent resource particles on the same subcarrier of OFDM symbol centering）Described in special letter Road or signal take, then another resource particle no longer forms available resources particle pair with it.（b）If two resource particles all by Step 2）Described in special channel or signal take, then not recomposition available resources particle pair.（c）If in same subcarrier On an only remaining unappropriated resource particle pair, then the example resources are not to forming available resources particle pair.If (d) same Only remaining 2 or 3 unappropriated resource particles pair on one subcarrier, then can carry out according to the efficiency of system with reliability Compromise, is divided into available example resources pair by its whole or is not all divided into available resources particle pair.

Wherein, the data not formed in the resource particle of available resources particle pair are demodulated using cell reference signals.

Reference signal PSRS resource grains for PS-OFDM symbol demodulations are set in the available resources particle pair marked off Son is right.The setting rule of reference signal PSRS resource particles pair can be：(a) on each subcarrier, if it includes more than 1 Available resources particle pair, then at least one PSRS resource particles pair can be set（To set the situation of one in the present embodiment Exemplified by）.(b) in the case where not conflicting with occupied resource position, the PSRS resource particles on adjacent sub-carrier are in the time Longer distance can be spaced on domain as far as possible.Fig. 3 to 8 give it is various in this example in the case of PSRS resource particles pair setting example Son.

In Fig. 3, by the first OFDM symbol to second from top to bottom, the four, the six, the eight, the tenth and the 12nd son Resource particle at carrier position is to being arranged to reference signal resource particle pair；By the 5th OFDM symbol to from top to bottom First, the three, the five, the seven, the 9th and the 11st sub-carrier positions at resource particle to being arranged to reference signal resource grain Son is right.

In Fig. 5, by the first OFDM symbol to the three, the six, the 9th from top to bottom and the 12nd sub-carrier positions at Resource particle to being arranged to reference signal resource particle pair；By the 3rd OFDM symbol to second from top to bottom, the five, the 8th With the resource particle at the 11st sub-carrier positions to being arranged to reference signal resource particle pair.

In Fig. 6, by the first OFDM symbol to second from top to bottom, the four, the six, the eight, the tenth and the 12nd son Resource particle at carrier position is to being arranged to reference signal resource particle pair；By the 4th OFDM symbol to from top to bottom First, the three, the five, the seven, the 9th and the 11st sub-carrier positions at resource particle to being arranged to reference signal resource grain Son is right.

In Fig. 7, by the first OFDM symbol to second from top to bottom, the six, the 8th and the 12nd sub-carrier positions at Resource particle to being arranged to reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the 3rd, 5th, the seven, the 9th and the 11st sub-carrier positions at resource particle to being arranged to reference signal resource particle pair.

In Fig. 8, equally by the first OFDM symbol to second from top to bottom, the six, the 8th and the 12nd subcarrier position The resource particle at the place of putting is to being arranged to reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the 3rd, Five, the seven, the 9th and the 11st sub-carrier positions at resource particle to being arranged to reference signal resource particle pair.

5）Data resource particle pair is divided in surplus resources particle pair.

In Fig. 3, by the first OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st son Resource particle at carrier position is to being arranged to data resource particle pair；By the second OFDM symbol to first from top to bottom to 3rd, the resource particle at the 5th to the nine, the 11st and the 12nd sub-carrier positions is to being arranged to data resource particle pair；Will 3rd OFDM symbol to from top to bottom second, third, at the five, the six, the eight, the 11st and the 12nd sub-carrier positions Resource particle to being arranged to data resource particle pair；4th OFDM symbol carries first from top to bottom to the 12nd son Resource particle at ripple position is to being arranged to data resource particle pair；By the 5th OFDM symbol to second from top to bottom, the 4th, Six, the eight, the tenth and the 12nd sub-carrier positions at resource particle to being arranged to data resource particle pair.

In Fig. 5, by the first OFDM symbol to second from top to bottom, the five, the 8th and the 11st sub-carrier positions at Resource particle to being arranged to data resource particle pair；By the second OFDM symbol to from top to bottom second, third, the 5th, 6th, the resource particle at the eight, the nine, the 11st and the 12nd sub-carrier positions is to being arranged to data resource particle pair；Will 3rd OFDM symbol is to the resource particle at the three, the six, the 9th from top to bottom and the 12nd sub-carrier positions to setting For data resource particle pair.

In Fig. 6, by the first OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st son Resource particle at carrier position is to being arranged to data resource particle pair；By the second OFDM symbol to first from top to bottom to 3rd, the resource particle at the 5th to the nine, the 11st and the 12nd sub-carrier positions is to being arranged to data resource particle pair；Will 3rd OFDM symbol to from top to bottom second, third, the five, the six, the eight, the nine, the 11st and the 12nd subcarriers Resource particle at position is to being arranged to data resource particle pair；By the 4th OFDM symbol to second from top to bottom, the 4th, 6th, the eight, the tenth and the 12nd sub-carrier positions at resource particle to being arranged to data resource particle pair；By the 5th OFDM Symbol to from top to bottom second, third, at the five, the six, the eight, the nine, the 11st and the 12nd sub-carrier positions Resource particle is to being arranged to data resource particle pair.

In Fig. 7, by the first OFDM symbol to the three, the five, the 9th from top to bottom and the 11st sub-carrier positions at Resource particle to being arranged to data resource particle pair；By the second OFDM symbol to first from top to bottom to the three, the 5th to Resource particle at nine, the 11st and the 12nd sub-carrier positions is to being arranged to data resource particle pair；By the 3rd OFDM Symbol to from top to bottom second, third, at the five, the six, the eight, the nine, the 11st and the 12nd sub-carrier positions Resource particle is to being arranged to data resource particle pair；By the 4th OFDM symbol to second from top to bottom, the six, the 8th and the tenth Resource particle at two sub-carrier positions is to being arranged to data resource particle pair.

In Fig. 8, equally by the first OFDM symbol to the three, the five, the 9th from top to bottom and the 11st subcarrier position The resource particle at the place of putting is to being arranged to data resource particle pair；By the second OFDM symbol to first from top to bottom to the 3rd, Resource particle at five to the nine, the 11st and the 12nd sub-carrier positions is to being arranged to data resource particle pair；By the 3rd OFDM symbol to from top to bottom second, third, the five, the six, the eight, the nine, the 11st and the 12nd sub-carrier positions The resource particle at place is to being arranged to data resource particle pair；By the 4th OFDM symbol to second from top to bottom, the six, the 8th and Resource particle at 12nd sub-carrier positions is to being arranged to data resource particle pair.

Above example one and the resource block division methods of example two can be arranged in advance by base station with subscriber terminal equipment Mode notify subscriber terminal equipment；It can also be notified by way of physical layer broadcast channel or control channel transmission signaling Subscriber terminal equipment.

A kind of sending method of data in the embodiment of the present application is described in detail above, below again to the present invention A kind of dispensing device of data using the above method in embodiment is described in detail.

Fig. 9 is the exemplary block diagram of the dispensing device of the data in the embodiment of the present application.As shown in figure 9, the device can Including：Running time-frequency resource division unit, data mapping unit, send frame generation unit and data transmission unit.

Wherein, running time-frequency resource division unit is used to divide at least one orthogonal frequency division multiplexing in the running time-frequency resource of present sub-frame With multiple access OFDM symbol pair, each OFDM symbol is to including two adjacent OFDM symbols, the OFDM of different OFDM symbol centerings Symbol is not overlapping；Two adjacent resource particle RE form a resource particle on the same same subcarrier of OFDM symbol centering It is right, by least one resource particle to being divided into reference signal resource particle pair；By at least one of surplus resources particle centering Resource particle is to being arranged to data resource particle pair.

Data mapping unit is used in the reference signal resource particle pair according to the data in making two resource particles Identical mode maps the first setting reference signal；One or two data symbol is mapped in the data resource particle pair； When mapping a data symbol in the data resource particle pair, according to the identical side of the data made in two resource particles Formula maps the data symbol；When mapping two data symbols in the data resource particle pair, by described two data Symbol is respectively mapped in two resource particles；Other in addition to reference signal resource particle pair and data resource particle pair Other data to be sent are mapped in resource particle.

Frame generation unit is sent, for generating the corresponding transmission signal of OFDM symbol, and the OFDM symbol pair that will be generated The transmission signal composition answered sends frame；Wherein, in the corresponding transmission signal of generation OFDM symbol, for each OFDM symbol It is right, in reference signal resource particle pair and data resource particle pair so that in the reference signal resource particle pair and data First circulation protection interval is attached with before first resource particle of resource particle centering, in the reference signal resource particle Pair and data resource particle centering second resource particle after be attached with second circulation protection interval；The first circulation is protected The duplication of the tail signal at intervals of the time-domain signal corresponding to first resource particle is protected, the second circulation protection interval is The duplication of the header signal of time-domain signal corresponding to second resource particle.

Data transmission unit, for the transmission frame of generation to be sent.

Corresponding with the data transmission method for uplink in the embodiment of the present application, the transmission frame generation unit can generated further OFDM symbol it is corresponding send signal when so that other resources of non-reference signal resource particle pair and non-data resource particle pair First circulation protection interval is added with before particle.

It is corresponding with the data transmission method for uplink in the embodiment of the present application during specific implementation, exist for sending frame generation unit Generate OFDM symbol it is corresponding send signal when, for the reference signal resource particle pair and data resource grains of OFDM symbol centering Son is right so that the is added before first resource particle in the reference signal resource particle pair and data resource particle pair One recycling-guard interval, after second resource particle in the reference signal resource particle pair and data resource particle pair Additional second circulation protection interval；And reference signal resource particle pair and data resource particle are removed to it for OFDM symbol centering Outer other resource particles so that the concrete methods of realizing that first circulation protection interval is added before each resource particle is same Can have a variety of.

It is corresponding with the first method of the data transmission method for uplink description in the embodiment of the present application, in the present embodiment device Frame generation unit is sent to be used to, to each OFDM symbol pair, first circulation protection interval is added before first OFDM symbol, Form the transmission signal of first OFDM symbol of the OFDM symbol pair；Second circulation is added after second OFDM symbol Protection interval, forms the transmission signal of second OFDM symbol of the OFDM symbol pair；At this time, the data mapping unit exists Before mapping other data to be sent in non-reference signal resource particle pair and other resource particles of non-data particle pair, into one Step to the other data to be sent of first in second resource particle for mapping to OFDM symbol centering are carried out phase compensations, So that generation OFDM symbol is corresponding when sending signal, first circulation protection is attached with before first other data to be sent Interval.

Corresponding with the second method of the data transmission method for uplink description in the embodiment of the present application, the transmission frame generation is single To each OFDM symbol pair, additional first circulation protection interval forms the OFDM symbol pair before first OFDM symbol The transmission signal of first OFDM symbol, the first circulation protection interval are answered for the signal of first OFDM symbol afterbody System；Second OFDM symbol of the OFDM symbol pair is divided into two parts processing, Part I OFDM symbol, which includes, all joins Second resource particle of signal resource particle pair and data resource particle centering is examined, reference signal resource particle pair is removed in correspondence 0 is filled with the position of other resource particles outside second resource particle of data resource particle centering；Part II OFDM symbol includes other in addition to reference signal resource particle pair and second resource particle of data resource particle centering Resource particle, on the position where second resource particle in corresponding to reference signal resource particle and data resource particle pair Filling 0；The second circulation protection interval is added after the Part I OFDM symbol；Accorded with the Part II OFDM The first circulation protection interval is added before number；Afterwards, two parts OFDM symbol is added to form the OFDM symbol pair The transmission signal of second OFDM symbol.

It is corresponding with the data transmission method for uplink in the embodiment of the present application, realize in application, also can be only to OFDM symbol centering The resource particle of the certain types of sensitive data of carrying in addition to reference signal resource particle pair and data resource particle pair, Additional first circulation protection interval before each resource particle, specific implementation in this case, can with it is above-mentioned enumerate two Kind specific implementation is similar.

For example, for the first, data mapping unit can be in non-reference signal resource particle pair and non-data resource particle To other resource particles in map other data to be sent before, to second resource grains of OFDM symbol centering will be mapped to Certain types of sensitive data on son carries out phase compensation so that generation OFDM symbol is corresponding when sending signal, the spy Determine to be attached with first circulation protection interval before the sensitive data of type.It is corresponding in generation OFDM symbol to send frame generation unit When sending signal, to each OFDM symbol pair, first circulation protection interval is added before first OFDM symbol, described in formation The transmission signal of first OFDM symbol of OFDM symbol pair；Added after second OFDM symbol between second circulation protection Every forming the transmission signal of second OFDM symbol of the OFDM symbol pair.

And for example, for second method, sending frame generation unit can be to each OFDM symbol pair, in first OFDM symbol Before add first circulation protection interval formed the OFDM symbol pair first OFDM symbol transmission signal, described first Signal replication of the recycling-guard at intervals of first OFDM symbol afterbody；Second OFDM of the OFDM symbol pair is accorded with Number it is divided into two parts processing, Part I OFDM symbol is included in addition to the resource particle for carrying certain types of sensitive data All resource particles, 0 is filled on the position of resource particle for carrying certain types of sensitive data；Part II OFDM symbol Comprising the resource particle for carrying certain types of sensitive data, corresponding except the resource particle for carrying certain types of sensitive data Outside all resource particles where position on fill 0；Described second is added after the Part I OFDM symbol to follow Ring protection interval；The first circulation protection interval is added before the Part II OFDM symbol；Afterwards, by two parts OFDM symbol is added the transmission signal for second OFDM symbol to form the OFDM symbol pair.

Corresponding with the data transmission method for uplink in the embodiment of the present application, the first setting reference signal can be in the prior art Existing reference signal, or newly-increased reference signal.

If first sets reference signal as newly-increased signal, running time-frequency resource division unit can be according to the physics in frame structure Layer control channel resource, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, cell reference signals resource, The position of any of demodulated reference signal resource, channel state information reference signals resource or any combination, in present sub-frame Running time-frequency resource in divide at least one OFDM symbol pair so that the OFDM symbol divided is not on influencing the physical layer control Channel, instruction any of channel and physical layer broadcast channel or the information transmission being combined processed, and/or, nor affect on same Walk any of signal, cell reference signals resource, demodulated reference signal resource, channel state information reference signals or any group The transmission of conjunction.Specific division principle can be consistent with the description in above method example two.

Also, at least one resource grains that the running time-frequency resource division unit will can be set on resource each subcarrier in the block Son is to being divided into reference signal resource particle pair；Alternatively, the running time-frequency resource division unit can be controlled according to physical layer in frame structure Channel resource, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, cell reference signals resource, demodulation ginseng The position of resource particle, is setting where examining any of signal resource, channel state information reference signals resource or any combination The OFDM symbol centering for determining to mark off in resource block sets available resources particle pair；In a subcarrier of the setting resource block When upper available resources particle is to for two pairs or more than two pairs, by least one available resources particle on the subcarrier to being divided into Reference signal resource particle pair.Specific division principle can be consistent with the description in above method example two.

If first sets reference signal as existing signal, such as include cell reference signals, demodulated reference signal and channel shape At least one of state information reference signal；Then running time-frequency resource division unit is according to the position and the first setting for making OFDM symbol pair Reference signal takes being positioned proximate to for OFDM symbol in LTE, and the number of OFDM symbol pair exists with the first setting reference signal The consistent principle of the number of OFDM symbol is taken in LTE, at least one OFDM symbol is divided in the running time-frequency resource of present sub-frame It is right；The position of resource particle is taken in LTE according to the position for making reference signal resource particle pair and the first setting reference signal Close on, and the number of reference signal resource particle pair takes the number one of resource particle with the first setting reference signal in LTE The principle of cause, by least one resource particle to being arranged to reference signal resource particle pair.

Corresponding with the data transmission method for uplink in the embodiment of the present application, which can be further such as the dotted portion in Fig. 9 It is shown, including a judging unit, in the user of each resource block in running time-frequency resource for judging present sub-frame to be received, if There are the user that channel quality and receiving terminal meet preset condition.

There are the use that channel quality and receiving terminal meet preset condition in the user for the running time-frequency resource division unit During family, the operation of at least one OFDM symbol is divided described in execution in the running time-frequency resource of present sub-frame.

At this time, channel quality and receiving terminal can be unsatisfactory for the to be received of the user of preset condition by the data mapping unit Resource block in using all data in second OFDM symbol for mapping to each OFDM symbol centering as sensitive data carry out Processing；Alternatively, the resource to be received that channel quality and receiving terminal are unsatisfactory for the user of preset condition all resources in the block Particle is handled as other resource particles in addition to reference signal resource particle pair and data resource particle pair.

During specific implementation, part or all of part can be that hardware circuit can also be program in the present embodiment device Code, for the part realized by program code, which can further comprise：Processor（Not shown in figure）And meter Calculation machine readable storage medium storing program for executing（Not shown in figure）.

Wherein, the part realized by program code is the program being stored in the computer-readable recording medium Code.

The processor is used to perform the program code in the computer-readable recording medium.

It will be appreciated by those skilled in the art that attached drawing is the schematic diagram of a preferred embodiment, module or stream in attached drawing Journey is not necessarily implemented necessary to the application.

It will be appreciated by those skilled in the art that the module in device in embodiment can describe be distributed according to embodiment In the device of embodiment, respective change can also be carried out and be disposed other than in one or more devices of the present embodiment.Above-mentioned reality The module for applying example can be merged into a module, can also be further split into multiple submodule.

Part steps in the embodiment of the present application, can utilize software to realize that corresponding software program can be stored in can In the storage medium of reading, such as CD or hard disk.

Particular embodiments described above, has carried out the purpose of the present invention, technical solution and beneficial effect further in detail Describe in detail bright, it should be understood that the foregoing is merely illustrative of the preferred embodiments of the present invention, be not intended to limit the guarantor of the present invention Scope is protected, within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in this Within the protection domain of invention.

Claims

A kind of 1. sending method of data, it is characterised in that including：

At least one orthogonal frequency division multiplexing multiple access OFDM symbol pair, each OFDM symbol are divided in the running time-frequency resource of present sub-frame To including two temporally adjacent OFDM symbols, the OFDM symbol of different OFDM symbol centerings is not overlapping, same OFDM symbol pair In two resource particle RE adjacent on same subcarrier form a resource particle pair；

By at least one resource particle to being arranged to reference signal resource particle pair, pressed in the reference signal resource particle pair The first setting reference signal is mapped according to the identical mode of the data made in two resource particles；

By at least one resource particle of other resource particle centerings in addition to reference signal resource particle pair to being arranged to several According to resource particle pair, one or two data symbol is mapped in the data resource particle pair；When in the data resource grain When sub- centering maps a data symbol, the data symbols are mapped according to the identical mode of the data made in two resource particles Number；When mapping two data symbols in the data resource particle pair, described two data symbols are respectively mapped to two In a resource particle；

Mapped in other resource particles in addition to reference signal resource particle pair and data resource particle pair other to be sent Data；

Generate OFDM symbol it is corresponding send signal when, for OFDM symbol centering reference signal resource particle pair and data provide Source particle pair so that attached before first resource particle in the reference signal resource particle pair and data resource particle pair Added with first circulation protection interval, second resource grains in the reference signal resource particle pair and data resource particle pair Second circulation protection interval is attached with after son；The first circulation protection interval is the time domain corresponding to first resource particle The duplication of the tail signal of signal, the second circulation protection interval are the head of the time-domain signal corresponding to second resource particle The duplication of portion's signal；

The corresponding signal composition that sends of the OFDM symbol of generation is sent into frame, and the transmission frame is sent.
2. according to the method described in claim 1, it is characterized in that, this method further comprises：Corresponded in generation OFDM symbol Transmission signal when, for other resource particles in addition to reference signal resource particle pair and data resource particle pair so that First circulation protection interval is attached with before each resource particle.
3. according to the method described in claim 2, it is characterized in that, the corresponding signal that sends of the generation OFDM symbol includes： To each OFDM symbol pair, first circulation protection interval is added before first OFDM symbol, forms the OFDM symbol pair First OFDM symbol transmission signal；Second circulation protection interval is added after second OFDM symbol, described in formation The transmission signal of second OFDM symbol of OFDM symbol pair；The first circulation protection interval is first OFDM symbol The signal replication of afterbody, the second circulation protection interval are the signal replication of second OFDM symbol stem；

It is described mapped in other resource particles except reference signal resource particle pair and data resource particle pair it is other to be sent Before data, further comprise：To first in second resource particle for mapping to OFDM symbol centering is other to be sent Data carry out phase compensation so that generation OFDM symbol is corresponding when sending signal, before first other data to be sent It is attached with first circulation protection interval.
4. according to the method described in claim 2, it is characterized in that, the corresponding signal that sends of the generation OFDM symbol includes：

To each OFDM symbol pair, additional first circulation protection interval forms the OFDM symbol before first OFDM symbol To first OFDM symbol transmission signal, the first circulation protection interval be first OFDM symbol afterbody letter Number replicate；Second OFDM symbol of the OFDM symbol pair is divided into two parts processing, Part I OFDM symbol includes complete Portion's reference signal resource particle pair and second resource particle of data resource particle centering, in the position of other corresponding resource particles Put filling 0；Part II OFDM symbol includes other resource particles, in corresponding reference signal resource particle and data resource grains 0 is filled on position where second resource particle of sub- centering；Described the is added after the Part I OFDM symbol Two recycling-guard intervals；The first circulation protection interval is added before the Part II OFDM symbol；Afterwards, by two Point OFDM symbol is added the transmission signal for second OFDM symbol to form the OFDM symbol pair.
5. according to the method described in claim 1, it is characterized in that, described divide at least one in the running time-frequency resource of present sub-frame A OFDM symbol to for：According to physical layer control channel resource, indicating channel resource, physical layer broadcast channel money in frame structure In source, synchronizing signal resource, cell reference signals resource, demodulated reference signal resource, channel state information reference signals resource The position of any one or any combination, divides at least one OFDM symbol pair in the running time-frequency resource of present sub-frame so that division Obtained OFDM symbol is not on influencing the physical layer control channel, instruction any of channel and physical layer broadcast channel or appointing The information transmission of meaning combination, and/or, synchronizing signal, cell reference signals, demodulated reference signal, channel condition information are not influenced The transmission of any of reference signal or any combination.
6. according to the method described in claim 5, it is characterized in that, described believe being arranged to refer at least one resource particle Number resource particle to including：By at least one resource particle set on resource each subcarrier in the block to being arranged to reference to letter Number resource particle pair.
7. according to the method described in claim 5, it is characterized in that, described believe being arranged to refer at least one resource particle Number resource particle to including：According to physical layer control channel resource, indicating channel resource, physical layer broadcast channel money in frame structure In source, synchronizing signal resource, cell reference signals resource, demodulated reference signal resource, channel state information reference signals resource The position of resource particle where any one or any combination, sets in the OFDM symbol pair marked off in set resource block and can use Resource particle pair；

If available resources particle is to for two pairs or more than two pairs on a subcarrier of the setting resource block, by the subcarrier On at least one available resources particle to being arranged to reference signal resource particle pair.
8. the method according to the description of claim 7 is characterized in that the running time-frequency resource of the present sub-frame includes not transmitting Main and auxiliary synchronizing signal, physical layer broadcast channel and uplink and downlink switching guard interval GP, but transmitting physical layer control channel, cell The resource block of reference signal and channel state information reference signals, and the resource block is using OFDM symbol as abscissa, from a left side to The right order according to OFDM symbol transmission time after arriving first arranges；Using subcarrier as ordinate, from top to bottom according to subcarrier The order arrangement of frequency from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from left to right Third and fourth OFDM symbol be divided into the first OFDM symbol the 2nd OFDM be divided into, the 6th and the 7th OFDM symbol Symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol be divided into 4th OFDM symbol is divided into the 5th OFDM symbol pair to, the 13rd and the 14th OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol under Resource particle at upper second, the four, the six, the eight, the tenth and the 12nd sub-carrier positions is to being arranged to reference to letter Number resource particle pair；5th OFDM symbol carries first from top to bottom, the three, the five, the seven, the 9th and the 11st son Resource particle at ripple position is to being arranged to reference signal resource particle pair.
9. the method according to the description of claim 7 is characterized in that the running time-frequency resource of the present sub-frame includes not transmitting master Synchronizing signal, physical layer broadcast channel and uplink and downlink switching guard interval GP, but transmit auxiliary synchronous signals, physical layer control letter The resource block in road, cell reference signals and channel state information reference signals, and the resource block is using OFDM symbol as abscissa, Arranged from left to right according to order of the OFDM symbol transmission time after arriving first；Using subcarrier as ordinate, from top to bottom according to The order arrangement of sub-carrier frequencies from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from left to right Third and fourth OFDM symbol be divided into the first OFDM symbol the 2nd OFDM be divided into, the 6th and the 7th OFDM symbol Symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol be divided into 4th OFDM symbol is divided into the 5th OFDM symbol pair to, the 12nd and the 13rd OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol under Resource particle at upper second, the four, the six, the eight, the tenth and the 12nd sub-carrier positions is to being arranged to reference to letter Number resource particle pair；4th OFDM symbol carries first from top to bottom, the three, the five, the seven, the 9th and the 11st son Resource particle at ripple position is to being arranged to reference signal resource particle pair.
10. the method according to the description of claim 7 is characterized in that the present sub-frame be include descending pilot frequency transmission time slot, The special subframe of uplink and downlink switching guard interval GP and ascending pilot frequency transmission time slot, the running time-frequency resource of the subframe include not passing Defeated auxiliary synchronous signals and physical layer broadcast channel, but transmit master sync signal, physical layer control channel, cell reference signals and letter The first resource block of channel state information reference signal, and the first resource block is pressed from left to right using OFDM symbol as abscissa Arranged according to order of the OFDM symbol transmission time after arriving first；Using subcarrier as ordinate, from top to bottom according to sub-carrier frequencies Order arrangement from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the first resource block from a left side The first OFDM symbol is divided into the 4th and the 5th right OFDM symbol, and second is divided into, the 6th and the 7th OFDM symbol OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol draw It is divided into the 4th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By in the first resource block One OFDM symbol is to the resource particle at second from top to bottom, the six, the 8th and the 12nd sub-carrier positions to being arranged to Reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st Resource particle at a sub-carrier positions is to being arranged to reference signal resource particle pair.
11. according to the method described in claim 10, it is characterized in that, the running time-frequency resource of the present sub-frame further comprises Main and auxiliary synchronizing signal and physical layer broadcast channel, but transmitting physical layer control channel, cell reference signals and channel shape are not transmitted The Secondary resource block of state information reference signal, and the Secondary resource block is using OFDM symbol as abscissa, from left to right according to Order arrangement of the OFDM symbol transmission time after arriving first；Using subcarrier as ordinate, from top to bottom according to sub-carrier frequencies from Small order arrangement is arrived greatly；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the Secondary resource block from a left side The first OFDM symbol is divided into the 4th and the 5th right OFDM symbol, and second is divided into, the 6th and the 7th OFDM symbol OFDM symbol, the 8th and the 9th OFDM symbol is divided into the 3rd OFDM symbol to, the tenth and the 11st OFDM symbol draw It is divided into the 4th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By in the Secondary resource block One OFDM symbol is to the resource particle at second from top to bottom, the six, the 8th and the 12nd sub-carrier positions to being arranged to Reference signal resource particle pair；By the 4th OFDM symbol to first from top to bottom, the three, the five, the seven, the 9th and the 11st Resource particle at a sub-carrier positions is to being arranged to reference signal resource particle pair.
12. the method according to the description of claim 7 is characterized in that the running time-frequency resource of the present sub-frame includes not transmitting Master sync signal and uplink and downlink switching guard interval GP, but transmitting physical layer broadcast channel, physical layer control channel, cell reference Signal, channel state information reference signals, the resource block of demodulated reference signal and auxiliary synchronous signals, and the resource block is with OFDM Symbol is abscissa, is arranged from left to right according to order of the OFDM symbol transmission time after arriving first；Using subcarrier as ordinate, Arranged from top to bottom according to the order of sub-carrier frequencies from big to small；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：By the resource block from left to right Third and fourth OFDM symbol be divided into the first OFDM symbol the 2nd OFDM be divided into, the 6th and the 7th OFDM symbol Symbol is divided into the 3rd OFDM symbol pair to, the 12nd and the 13rd OFDM symbol；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol under Resource particle at upper the three, the six, the 9th and the 12nd sub-carrier positions is to being arranged to reference signal resource particle It is right；By the 3rd OFDM symbol to the resource particle pair at second from top to bottom, the five, the 8th and the 11st sub-carrier positions It is arranged to reference signal resource particle pair.
13. the method according to any one of claim 5 to 12, it is characterised in that other data to be sent include： At least one of cell reference signals, channel state information reference signals and data using cell reference signals demodulation.
14. according to the method described in claim 1, it is characterized in that, the first setting reference signal is believed including cell reference Number, at least one of demodulated reference signal and channel state information reference signals；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to for：According to the position for making OFDM symbol pair Being positioned proximate to for OFDM symbol, and the number of OFDM symbol pair and the first setting are taken in LTE with the first setting reference signal Reference signal takes the consistent principle of number of OFDM symbol in LTE, and at least one is divided in the running time-frequency resource of present sub-frame A OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to for：According to making reference signal resource particle To position with first setting reference signal being positioned proximate to for resource particle, and reference signal resource particle pair are taken in LTE Number the consistent principle of number of resource particle is taken in LTE with the first setting reference signal, by least one resource grains Son is to being arranged to reference signal resource particle pair.
15. according to the method for claim 14, it is characterised in that the first setting reference signal is believed including cell reference Number；

It is described divided in the running time-frequency resource of present sub-frame at least one OFDM symbol to including：It is described in each resource block Resource block is arranged according to order of the OFDM symbol transmission time after arriving first from left to right using OFDM symbol as abscissa, with Subcarrier is ordinate, and is arranged from top to bottom according to sub-carrier frequencies order from big to small, by the resource block from a left side to First and second right OFDM symbols are divided into the first OFDM symbol and are divided into second to, third and fourth OFDM symbol OFDM symbol is divided into, the 5th and the 6th OFDM symbol the 3rd OFDM symbol to, the 8th and the 9th OFDM symbol division For the 4th OFDM symbol to, the tenth and the 11st OFDM symbol be divided into the 5th OFDM symbol to, the 12nd and the 13rd OFDM symbol is divided into the 6th OFDM symbol pair；

It is described by least one resource particle to be arranged to reference signal resource particle to including：By the first OFDM symbol centering from Under resource particle at upper first and the 7th sub-carrier positions to being arranged to the reference signal of corresponding first antenna port Resource particle pair, by the 3rd OFDM symbol to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to setting To correspond to the reference signal resource particle pair of first antenna port, by the 4th OFDM symbol to first from top to bottom and the 7th Resource particle at sub-carrier positions is to being arranged to the reference signal resource particle pair of corresponding first antenna port, by the 6th OFDM Symbol is to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding first antenna port Reference signal resource particle pair；By the resource at the 4th and the tenth sub-carrier positions of the first OFDM symbol centering from top to bottom Particle is to being arranged to the reference signal resource particle pair of corresponding second antenna port, by the 3rd OFDM symbol to the from top to bottom Resource particle at one and the 7th sub-carrier positions to being arranged to the reference signal resource particle pair of corresponding second antenna port, By the 4th OFDM symbol to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding second The reference signal resource particle pair of antenna port, by the 6th OFDM symbol to first from top to bottom and the 7th sub-carrier positions The resource particle at place is to being arranged to the reference signal resource particle pair of corresponding second antenna port；By the second OFDM symbol centering from Under resource particle at upper first and the 7th sub-carrier positions to being arranged to the reference signal of corresponding third antenna port Resource particle pair, by the 5th OFDM symbol to the resource particle at first from top to bottom and the 7th sub-carrier positions to setting For the reference signal resource particle pair of corresponding third antenna port；By the second OFDM symbol to the 4th and the tenth from top to bottom Resource particle at sub-carrier positions is to being arranged to the reference signal resource particle pair of corresponding 4th antenna port, by the 5th OFDM Symbol is to the resource particle at the 4th and the tenth sub-carrier positions from top to bottom to being arranged to corresponding 4th antenna port Reference signal resource particle pair.
16. the method according to claims 14 or 15, it is characterised in that other data to be sent include：It is described small Reference in area's reference signal, demodulated reference signal and channel state information reference signals in addition to the described first setting reference signal In signal, physical layer control channel resource, indicating channel resource, physical layer broadcast channel resource and synchronizing signal resource at least It is a kind of.
17. according to the method any one of claim 1-12,14,15, it is characterised in that

It is described that at least one OFDM symbol is divided in the running time-frequency resource of present sub-frame to before, further comprising：Judge waiting In the user for receiving each resource block in the running time-frequency resource of present sub-frame, if there are channel quality and receiving terminal to meet preset condition User, such as exist, then at least one OFDM symbol pair is divided in the running time-frequency resource of present sub-frame；

Other resource particles in addition to reference signal resource particle pair and data resource particle pair include：Channel quality and Receiving terminal is unsatisfactory for resource to be received all resource particles in the block of the user of preset condition.
A kind of 18. dispensing device of data, it is characterised in that including：

Running time-frequency resource division unit, for dividing at least one orthogonal frequency division multiplexing multiple access in the running time-frequency resource of present sub-frame OFDM symbol pair, each OFDM symbol accord with the OFDM including two temporally adjacent OFDM symbols, different OFDM symbol centerings It is number not overlapping；Two adjacent resource particle RE form a resource particle pair on the same same subcarrier of OFDM symbol centering, By at least one resource particle to being arranged to reference signal resource particle pair；By at least one resource of surplus resources particle centering Particle is to being arranged to data resource particle pair；

Data mapping unit, in the reference signal resource particle pair according to making the data in two resource particles identical Mode map the first setting reference signal；One or two data symbol is mapped in the data resource particle pair；When When the data resource particle centering maps a data symbol, reflected according to the identical mode of the data made in two resource particles Penetrate the data symbol；When mapping two data symbols in the data resource particle pair, by described two data symbols It is respectively mapped in two resource particles；In other resources in addition to reference signal resource particle pair and data resource particle pair Other data to be sent are mapped in particle；

Frame generation unit is sent, for generating the corresponding transmission signal of OFDM symbol, and the OFDM symbol generated is corresponding Send signal composition and send frame；Wherein, in the corresponding transmission signal of generation OFDM symbol, for each OFDM symbol centering Reference signal resource particle pair and data resource particle pair so that in the reference signal resource particle pair and data resource particle First circulation protection interval is attached with before first resource particle of centering, in the reference signal resource particle pair and data Second circulation protection interval is attached with after second resource particle of resource particle centering；The first circulation protection interval is The duplication of the tail signal of time-domain signal corresponding to first resource particle, the second circulation protection interval are second money The duplication of the header signal of time-domain signal corresponding to the particle of source；

Data transmission unit, for the transmission frame of generation to be sent.
19. device according to claim 18, it is characterised in that the transmission frame generation unit is further in generation OFDM Symbol it is corresponding send signal when so that other resource particles of non-reference signal resource particle pair and non-data resource particle pair First circulation protection interval is added with before.
20. device according to claim 19, it is characterised in that the transmission frame generation unit is to each OFDM symbol It is right, first circulation protection interval is added before first OFDM symbol, forms first OFDM symbols of the OFDM symbol pair Number transmission signal；Second circulation protection interval is added after second OFDM symbol, forms the of the OFDM symbol pair The transmission signal of two OFDM symbols；

The data mapping unit maps it in other resource particles except reference signal resource particle pair and particle of data pair Before its data to be sent, further to treating first in second resource particle for mapping to OFDM symbol centering is other Send data carry out phase compensation so that generation OFDM symbol it is corresponding send signal when, first other data to be sent First circulation protection interval is attached with before.
21. device according to claim 19, it is characterised in that the transmission frame generation each OFDM symbol pair of single pair, Additional first circulation protection interval forms first OFDM symbol of the OFDM symbol pair before first OFDM symbol Signal is sent, the first circulation protection interval is the signal replication of first OFDM symbol afterbody；The OFDM is accorded with Number to second OFDM symbol be divided into two parts processing, Part I OFDM symbol include all referring to signal resource particle pair With second resource particle of data resource particle centering, 0 is filled on the position of other corresponding resource particles；Part II OFDM symbol includes other resource particles, second resource in corresponding reference signal resource particle and data resource particle pair 0 is filled on position where particle；The second circulation protection interval is added after the Part I OFDM symbol；Institute The first circulation protection interval is added before stating Part II OFDM symbol；Afterwards, two parts OFDM symbol is added to be formed The transmission signal of second OFDM symbol of the OFDM symbol pair.
22. device according to claim 19, it is characterised in that the running time-frequency resource division unit is according in frame structure Physical layer control channel resource, indicating channel resource, physical layer broadcast channel resource, synchronizing signal resource, cell reference signals The position of any of resource, demodulated reference signal resource, channel state information reference signals resource or any combination, current At least one OFDM symbol pair is divided in the running time-frequency resource of subframe so that the OFDM symbol divided is not on influencing the physics The information transmission of layer control channel, instruction any of channel and physical layer broadcast channel or any combination, and/or, do not influence The biography of any of synchronizing signal, cell reference signals, demodulated reference signal, channel state information reference signals or any combination It is defeated.
23. device according to claim 22, it is characterised in that the running time-frequency resource division unit will be set in resource block Each subcarrier at least one resource particle to being arranged to reference signal resource particle pair；Alternatively, the running time-frequency resource Division unit is according to physical layer control channel resource, indicating channel resource, physical layer broadcast channel resource, synchronous letter in frame structure Any of number resource, cell reference signals resource, demodulated reference signal resource, channel state information reference signals resource are appointed The position of resource particle, sets available resources particle in the OFDM symbol pair marked off in setting resource block where meaning combination It is right；When available resources particle is to for two pairs or more than two pairs on a subcarrier of the setting resource block, by the subcarrier On at least one available resources particle to being arranged to reference signal resource particle pair.
24. device according to claim 19, it is characterised in that the first setting reference signal is believed including cell reference Number, at least one of demodulated reference signal and channel state information reference signals；

The running time-frequency resource division unit takes with the first setting reference signal in LTE according to making the position of OFDM symbol pair OFDM symbol is positioned proximate to, and the number of OFDM symbol pair takes OFDM symbol with the first setting reference signal in LTE The consistent principle of number, divides at least one OFDM symbol pair in the running time-frequency resource of present sub-frame；Provided according to reference signal is made The position of source particle pair takes being positioned proximate to for resource particle, and reference signal resource with the first setting reference signal in LTE The number of the particle pair principle consistent with the number that the first setting reference signal takes resource particle in LTE, will be at least one Resource particle is to being arranged to reference signal resource particle pair.
25. the device according to any one of claim 19 to 24, it is characterised in that the device further comprises judging single Member, in the user of each resource block in running time-frequency resource for judging present sub-frame to be received, if there are channel quality and connect Receiving end meets the user of preset condition；

The running time-frequency resource division unit there are during the user that channel quality and receiving terminal meet preset condition, perform it is described The operation of at least one OFDM symbol pair is divided in the running time-frequency resource of present sub-frame；

Other resource particles in addition to reference signal resource particle pair and data resource particle pair include：Channel quality and Receiving terminal is unsatisfactory for resource to be received all resource particles in the block of the user of preset condition.