CN106034006A - Processing method and processing device for channel state measurement pilot frequency - Google Patents

Abstract

The invention provides a processing method and processing device for channel state measurement pilot frequency. The processing method comprises steps of dividing channel state measurement pilot frequency into assigned quantity sets; the channel state measurement pilot frequency is a preset quantity dimension and the preset quantity is quantity of antennas of a base station; the base station transmits the channel state measurement pilot frequency to a terminal according to the assigned quantity sets, wherein the channel state measurement pilot frequency is used for indicating the terminal to perform channel measurement; the base station receives channel state information fed back by the terminal; and the channel state information is used for indicating the base station to execute pre-coding processing on the terminal. The processing method and processing device solve the problem that the measurement performance is limited because of dimension division measurement and feedback and achieve an effect that resources obtained by competition can be better utilized.

Description

Channel status measures the processing method and processing device of pilot tone

Technical field

The present invention relates to the communications field, measure the processing method of pilot tone in particular to a kind of channel status And device.

Background technology

In wireless communication system, transmitting terminal and receiving terminal take the mode of spatial reuse to use many antennas to obtain Take higher speed.Relative to general method for spacial multiplex, the technology of a kind of enhancing is receiving terminal feedback letter Road information uses some to launch precoding technique to transmitting terminal, transmitting terminal according to the channel information obtained, can pole The earth improves transmission performance.For single user multiple-input and multiple-output, (Multi-input Multi-output is referred to as MIMO), in, channel characteristics Vector Message is directly used to carry out precoding；For in multiuser MIMO, need Will channel information more accurately.

At Long Term Evolution (Long Term Evolution, referred to as LTE) in the works, descending reference signal It is divided into: the reference signal (Cell-specific Reference Signal, referred to as CRS) of cell-specific, shifting The dynamic specific reference signal of platform (UE-specific Reference Signal, referred to as DMRS), channel status Information reference signal (CSI Reference Signal, referred to as CSI-RS), location reference signals (Positioning Reference Signal, referred to as PRS), MBSFN-RS etc..

Wherein CRS is publicly-owned pilot tone, sends at full bandwidth, and for channel measurement and demodulation, CRS pilot tone is tieed up Spend corresponding with antenna port number；DMRS is for proprietary pilot tone, is that each user is distinctive, at part band Wide transmission, the data for user demodulate, and DMRS pilot tone dimension is corresponding with the number of plies sending data； CSI-RS is channel condition information pilot tone, is publicly-owned, sends at full bandwidth, is used for measuring channel status, CSI-RS pilot tone dimension is corresponding with antenna port number, and transmission antenna number is Nt, then base station sends Nt dimension CSI-RS。

CRS is to measure and demodulation pilot tone, is Cell Special, sends at full bandwidth, and UE receives CRS carries out channel measurement, measure present channel channel quality instruction (Channel quality indication, Referred to as CQI) information, PMI and order designator (Rank Indicator, referred to as RI), and carry out anti- Feedback；UE can also carry out data demodulation with the CRS received, and obtains the data message that UE needs. CSI-RS is used for measure channel state information, is Cell Special, sends at full bandwidth.CSI-RS is used for Measure CQI information, PMI information and RI information.Comparing with CRS, the pilot density of CSI-RS is much lower, The expense of average RB only one of which RE.DMRS is the demodulation pilot tone sent on PDSCH, is UE Special's.DMRS signal carries out precoding together with the data of user, when user receives DMRS During signal, it is possible to obtain channel information and precoding information, thus data are demodulated.

At Long Term Evolution (Long Term Evolution, referred to as LTE) in the works, the feedback of channel information Mainly by better simply single code book feedback method, the performance launching precoding technique of MIMO is main Depend on the accuracy of code book feedback.

Channel information based on code book quantifies the ultimate principle of feedback and is briefly described below:

Assume that Limited Feedback channel capacity is B bps/Hz, then the number of available code word is N=2^BIndividual. The space of feature vectors of channel matrix is through quantifying composition codebook spaceTransmitting terminal with connect Receiving end preserves or produces in real time this code book (sending and receiving end is identical) jointly.Receiving terminal according to obtain channel matrix H, By certain criterion fromThe code word that middle selection one and channel mate mostIllustrate the Characteristic Vectors of channel Amount information, and code word sequence number i is fed back to transmitting terminal.Here, code word sequence is known as precoding matrix indicators (Precoding Matrix Indicator, referred to as PMI).Transmitting terminal finds corresponding pre-according to this sequence number i Coding codewordThus obtain channel information.

Described above is all the principle of code book feedback technique in LTE, during application, also relates to some more Body feedback method.In the standard of LTE, the minimum feedback unit of channel information is subband (Subband) letter Road information, a subband is made up of several Resource Block (Resource Block, referred to as RB), each RB is made up of multiple Resource Units (Resource Element, referred to as RE), and RE is time-frequency in LTE The least unit of resource, has continued to use the resource representation method of LTE in LTE-A.Several Subband can claim It is properly termed as broadband Wideband for Multi-Subband, an a lot of Subband.

In LTE to channel information relevant feedback content, channel condition information (Channel state are described below Information, referred to as CSI) feedback include: channel quality instruction (Channel quality indication, Referred to as CQI) information, PMI and order designator (Rank Indicator, referred to as RI).Here we The content paid close attention to most is PMI information, but RI and CQI also belongs to the content of information feedback.

CQI is the index weighing down channel quality quality.In 36-213 agreement, CQI is with 0～15 Integer value represent, representing different CQI grades respectively, different CQI correspond to respective modulation methods Formula and encoder bit rate (Modulation and Coding Scheme, referred to as MCS).

RI is for describing the number of space independent channel, the order (Rank) of respective channels response matrix.Opening Under annular space multiplexing and Closed-Loop Spatial Multiplexing pattern, need UE to feed back RI information, need not under other patterns Feedback RI information.The sum of ranks number of plies of channel matrix is corresponding.

Along with the high speed development of wireless communication technology, user radio application is more and more abundanter, has driven wireless data industry Business increases rapidly, it is anticipated that between coming 10 years, data service is with annual 1.6-2 times of speed increases.This gives wireless Access network brings huge challenge.Multi-antenna technology is reply wireless data service explosive growth challenge Key technology, in current 4G support multi-antenna technology only support that the horizontal dimensions wave beam of maximum 8 ports is composed Shape technology, also has bigger potentiality that power system capacity is substantially improved further.

Extensive MIMO (Massive MIMO) technology is a crucial increasing in next generation communication technology Strong technology, Massive mimo system is mainly characterized by: base station side is configured with large-scale antenna array, such as 64 or 128 antennas, the most, data are transmitted when, utilize MU-MIMO technology, simultaneously With the frequency multiple user of multiplexing, in general, number of antennas and users multiplexing number ratio maintain a 5-10 times of left side Right.May certify that, either at the strong correlation channel of view distance environment, or the non-correlation channel under rich scattering, Correlation coefficient between the channel of any two user is decayed along with the increase exponentially form of number of antennas, than As when base station side is configured with 128 antennas, between the channel of any two user, correlation coefficient levels off to 0, In other words close to orthogonal between multi-user's respective channels.On the other hand, big array can bring considerable Array gain and diversity gain.

For Massive MIMO, due to the introducing of a large amount of antennas, traditional method: every antenna Send channel measurement pilot frequency CSI-RS, terminal detection CSI-RS and estimate to obtain each transfer resource by channel Corresponding channel matrix, according to channel matrix obtain in optimal base band each frequency domain sub-band precoding vectors and The best transmission number of plies information in broadband, is then based on previously described pilot measurement technology and code book feedback technique Feed back, when this mode is applied in massive MIMO, there is bigger problem.It is mainly reflected in, First, along with increasing of antenna number, pilot-frequency expense is increasing, and too much pilot-frequency expense can have a strong impact on The performance of system, increases the complexity of system.Secondly as the increase of base station side antenna number, base station needs The pilot tone generating Nt dimension carries out channel measurement, and end side also to feed back, according to measuring pilot tone, the code book that Nt ties up, Calculate and measurement complexity is the highest；Fig. 1 is multiaerial system 2D aerial array schematic diagram in correlation technique, as Shown in Fig. 1,

Dividing dimension to measure and feedback is a kind of technology being applied to massive MIMO, this technology needs base station side Send horizontal antenna dimension Nt of 2D aerial array respectively_HWith vertical antenna dimension Nt_vThe measurement pilot tone of dimension.As Shown in Fig. 1, base station sends the 8Tx of horizontal dimensions and measures pilot tone, and vertical dimensions sends the measurement pilot tone of 8Tx. Terminal receives pilot tone CSI-RS-h of two kinds of different dimensions and CSI-RS-v respectively and measures the channel of every dimension Status information also feeds back CSI_HAnd CSI_v.The CSI information of different dimensions is synthesized the CSI letter of Nt dimension by base station side Breath, such as PMI synthesis can utilize the Kronecker in formula (1) to amass form:

$C_{\mathrm{Nt}}=C_H\⊗C_v$ (1)

Base station utilizes the full Vc SI information of synthesis that terminal is carried out precoding.

Although solving in correlation technique, pilot-frequency expense in massive MIMO is big, measure complicated problem, but Being that performance is limited by very large, this technology is only suitable for being applied to strong correlation channel.But in actual channel, Multipath is complicated, and influence factor is more, and most of the time, channel is not strong correlation, therefore in application point dimension During feedback, have the biggest performance loss.

Measure and feed back the problem causing channel measurement performance to be restricted in correlation technique point of dimension, the most still Effective solution is not proposed.

Summary of the invention

Present invention is primarily targeted at the processing method and processing device providing a kind of channel status to measure pilot tone, with At least solve point problem that dimension is measured and feedback causes channel measurement performance to be restricted in correlation technique.

According to an aspect of the invention, it is provided a kind of channel status measures the processing method of pilot tone, also include: Channel status is measured pilot tone and is divided into specified quantity group by base station, and wherein, it is pre-that described channel status measures pilot tone Determined number is tieed up, and this predetermined quantity is the antenna amount of described base station；Described base station is according to described specified quantity group Sending described channel status to terminal respectively and measure pilot tone, wherein, described channel status is measured pilot tone and is used for referring to Show that described terminal performs channel measurement；The channel condition information of the described terminal feedback of described base station reception, wherein, Described channel condition information is used for indicating described base station that described terminal is performed precoding processing；Wherein, described Specified quantity group channel status is measured pilot tone and is included: the first kind channel status of the first sets of numbers measure pilot tone and The Equations of The Second Kind channel status of the second sets of numbers measures pilot tone；Wherein, the described Equations of The Second Kind of described second sets of numbers Channel status measure pilot tone by from described first kind channel status measure pilot tone often group in choose an element or Multiple elements separately constitute.

Further, each group of channel measurement pilot frequency during the channel status of described specified quantity group measures pilot tone Quantity equal.

Further, the channel status of described specified quantity group measures the dimension sum of pilot tone more than described predetermined number Amount.

Further, described base station sends the survey of described channel status to terminal respectively according to described specified quantity group Amount pilot tone include: described base station in the 3rd quantity subframe with predetermined period and according to described specified quantity group Send described channel status to described terminal respectively and measure pilot tone.

Further, described base station sends the survey of described channel status to terminal respectively according to described specified quantity group Amount pilot tone include: described base station on the 4th quantity Resource Block RB according to described specified quantity group respectively to institute State terminal and send described channel status measurement pilot tone.

Further, described base station sends the survey of described channel status to terminal respectively according to described specified quantity group Amount pilot tone includes: described base station uses the 5th quantity pilot frequency locations according to described specified quantity group respectively to institute State terminal and send described channel status measurement pilot tone.

Further, described channel status is measured pilot tone and is included at least one of: channel condition information reference Signal CSI-RS, reference signal CRS of cell-specific.

According to a further aspect of the invention, it is provided that a kind of channel status measures the processing method of pilot tone, also wraps Include: terminal receives the specified quantity group channel status measurement pilot tone that base station sends, wherein, described channel status Measuring pilot tone is predetermined quantity dimension, and this predetermined quantity is the antenna amount of described base station；Described terminal is according to institute State channel status and measure pilot tone execution channel measurement, and to described base station feedback channel condition information.

Further, the mode of the specified quantity group channel status measurement pilot tone that terminal receives base station transmission includes One below: described terminal receives the described specified quantity group that described base station sends in the 3rd quantity subframe Channel status measures pilot tone；Described terminal receives the institute that described base station sends on the 4th quantity Resource Block RB State specified quantity group channel status and measure pilot tone；Described terminal receives described base station in the 5th quantity pilot bit The described specified quantity group channel status putting transmission measures pilot tone.

Further, the mode that described terminal measures pilot tone execution channel measurement according to described channel status includes One below: described terminal performs channel measurement in described subframe；Described terminal is in described 4th quantity Channel measurement is performed on appointment RB in Resource Block RB；Described terminal is in described 5th quantity pilot frequency locations In appointment pilot frequency locations on perform channel measurement.

Further, described channel status is measured pilot tone and is included at least one of: channel condition information reference Signal CSI-RS, reference signal CRS of cell-specific.

According to a further aspect of the invention, it is provided that a kind of channel status measures the processing means of pilot tone, is positioned at Base station side, also includes: be divided into module, is divided into specified quantity group for channel status is measured pilot tone, wherein, It is predetermined quantity dimension that described channel status measures pilot tone, and this predetermined quantity is the antenna amount of described base station；Send out Send module, measure pilot tone for sending described channel status to terminal respectively according to described specified quantity group, its In, described channel status is measured pilot tone and is used for indicating described terminal to perform channel measurement；First receiver module, For receiving the channel condition information of described terminal feedback, wherein, described channel condition information is used for indicating institute State base station and described terminal is performed precoding processing；Wherein, described specified quantity group channel status measures pilot tone Including: the first kind channel status of the first sets of numbers measures pilot tone and the Equations of The Second Kind channel status of the second sets of numbers Measure pilot tone；Wherein, the described Equations of The Second Kind channel status of described second sets of numbers measures pilot tone by from described the The often group of one class channel status measurement pilot tone chooses an element or multiple element separately constitutes.

Further, each group of channel measurement pilot frequency during the channel status of described specified quantity group measures pilot tone Quantity equal.

Further, the channel status of described specified quantity group measures the dimension sum of pilot tone more than described predetermined number Amount.

Further, described sending module includes: the first transmitting element, in the 3rd quantity subframe Lead to the described channel status measurement of transmission of described terminal respectively with predetermined period and according to described specified quantity group Frequently.

Further, described sending module includes: the second transmitting element, at the 4th quantity Resource Block RB is upper sends described channel status measurement pilot tone to described terminal respectively according to described specified quantity group.

Further, described sending module includes: the 3rd transmitting element, for using the 5th quantity pilot tone Position sends described channel status to described terminal respectively according to described specified quantity group and measures pilot tone.

Further, described channel status is measured pilot tone and is included at least one of: channel condition information reference Signal CSI-RS, reference signal CRS of cell-specific.

According to another aspect of the present invention, it is provided that a kind of channel status measures the processing means of pilot tone, is positioned at end Side, also includes: the second receiver module, and the specified quantity group channel status sent for receiving base station is measured Pilot tone, wherein, it is predetermined quantity dimension that described channel status measures pilot tone, and this predetermined quantity is described base station Antenna amount；Perform module, perform channel measurement for measuring pilot tone according to described channel status, and to institute State base station feedback channel condition information.

Further, described second receiver module includes one below: first receives unit, is used for receiving institute State the described specified quantity group channel status measurement pilot tone that base station sends in the 3rd quantity subframe；Second connects Receive unit, for receiving the described specified quantity group letter that described base station sends on the 4th quantity Resource Block RB Road state measurement pilot tone；3rd receives unit, is used for receiving described base station in the 5th quantity pilot frequency locations The described specified quantity group channel status sent measures pilot tone.

Further, described execution module includes one below: the first performance element, in described subframe Upper execution channel measurement；Second performance element, for the appointment in described 4th quantity Resource Block RB Channel measurement is performed on RB；3rd performance element, for the appointment in described 5th quantity pilot frequency locations Channel measurement is performed in pilot frequency locations.

Further, described channel status is measured pilot tone and is included at least one of: channel condition information reference Signal CSI-RS, reference signal CRS of cell-specific.

By the present invention, use base station that predetermined quantity is tieed up channel status measurement pilot tone and be divided into specified quantity group, so After the channel status of specified quantity group measured pilot tone be sent respectively to terminal, terminal is surveyed according to the state received Amount pilot tone performs the mode of channel measurement, has ensured that base station can obtain preferable precoding performance, has solved phase The problem that dimension is measured and feedback causes channel measurement performance to be restricted in the technology of pass point, and then reached can be more The effect of the resource that good utilisation is competed.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, The schematic description and description of the present invention is used for explaining the present invention, is not intended that the improper limit to the present invention Fixed.In the accompanying drawings:

Fig. 1 is multiaerial system 2D aerial array schematic diagram in correlation technique；

Fig. 2 is the process flow figure that channel status according to embodiments of the present invention measures pilot tone；

Fig. 3 is the process flow figure that channel status according to embodiments of the present invention measures pilot tone；

Fig. 4 is the processing means structure money figure one that channel status according to embodiments of the present invention measures pilot tone；

Fig. 5 is the processing means structured flowchart two that channel status according to embodiments of the present invention measures pilot tone；

Fig. 6 is that the base station according to alternative embodiment of the present invention sends channel status to terminal on 3 TTI respectively Measure pilot tone schematic diagram；

Fig. 7 a is the discontinuous TTI schematic diagram one sent in the cycle according to alternative embodiment of the present invention；

Fig. 7 b is the discontinuous TTI schematic diagram one sent the aperiodic according to alternative embodiment of the present invention；

Fig. 8 a is the discontinuous TTI schematic diagram two sent in the cycle according to alternative embodiment of the present invention；

Fig. 8 b is the discontinuous TTI schematic diagram two sent the aperiodic according to alternative embodiment of the present invention；

Fig. 9 is the transmission pilot tone schematic diagram on RB according to alternative embodiment of the present invention；

Figure 10 is the CSI-RS RE position view according to alternative embodiment of the present invention；

Figure 11 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram one；

Figure 12 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram two；

Figure 13 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram three；

Figure 14 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram four；

Figure 15 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram five；

Figure 16 is that the base station according to alternative embodiment of the present invention sends measurement pilot tone schematic diagram；

Figure 17 is the CSI-RS RE position view according to alternative embodiment of the present invention；

Figure 18 a is the continuous T TI schematic diagram three sent in the cycle according to alternative embodiment of the present invention；

Figure 18 b is the continuous T TI schematic diagram three sent the aperiodic according to alternative embodiment of the present invention；

Figure 19 is the transmission pilot tone schematic diagram on RB according to alternative embodiment of the present invention；

Figure 20 is the CSI-RS RE position view according to alternative embodiment of the present invention；And

Figure 21 is the different 64Tx code books according to alternative embodiment of the present invention and channel correlation coefficient schematic diagram.

Detailed description of the invention

It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment Can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Present embodiments providing a kind of channel status and measure the processing method of pilot tone, Fig. 2 is to implement according to the present invention The channel status of example measures the process flow figure of pilot tone, as in figure 2 it is shown, the step of the method includes:

Step S202: channel status is measured pilot tone and is divided into specified quantity group by base station；

Wherein, it is predetermined quantity dimension that channel status measures pilot tone, and this predetermined quantity is the antenna amount of base station；

Step S204: base station sends channel status to terminal respectively according to specified quantity group and measures pilot tone；

Wherein, channel status measurement pilot tone is used for indicating terminal to perform channel measurement.

Step S206: base station receives the channel condition information of terminal feedback；

Wherein, channel condition information is used for indicating base station that terminal is performed precoding processing, the of the first sets of numbers One class channel status is measured the Equations of The Second Kind channel status of pilot tone and the second sets of numbers and is measured pilot tone；Wherein, the second number The Equations of The Second Kind channel status of amount group is measured pilot tone and is chosen one by from the often group of first kind channel status measurement pilot tone Individual element separately constitutes.

By the present embodiment, use base station that predetermined quantity is tieed up channel status measurement pilot tone and be divided into specified quantity group, Then the channel status of specified quantity group being measured pilot tone and be sent respectively to terminal, terminal is according to the state received Measure pilot tone and perform the mode of channel measurement, ensured that base station can obtain preferable precoding performance, solved Point problem that dimension is measured and feedback causes channel measurement performance to be restricted in correlation technique, and then reached permissible The effect of the resource that more good utilisation is competed.

Additionally, for each group of channel measurement during the channel status of specified quantity group measures pilot tone in the present embodiment The quantity of pilot tone is equal, and the channel status of this specified quantity group measures the dimension sum of pilot tone more than predetermined quantity.

In another optional embodiment of the present embodiment, base station sends to terminal respectively according to specified quantity group Channel status is measured the mode of pilot tone and can be achieved in that

Mode one: base station in the 3rd quantity subframe with predetermined period and according to specified quantity group respectively to terminal Send channel status and measure pilot tone.

Mode two: base station sends letter to terminal respectively according to specified quantity group on the 4th quantity Resource Block RB Road state measurement pilot tone.

Mode three: base station uses the 5th quantity pilot frequency locations to send channel to terminal respectively according to specified quantity group State measurement pilot tone.

Alternatively, the channel status related to for the present embodiment is measured pilot tone and is included at least one of: channel State information reference signals CSI-RS, reference signal CRS of cell-specific.

Fig. 3 is the process flow figure that channel status according to embodiments of the present invention measures pilot tone, such as Fig. 3 Shown in, the step of the method includes:

Step S302: terminal receives the specified quantity group channel status measurement pilot tone that base station sends；

Wherein, it is predetermined quantity dimension that channel status measures pilot tone, and this predetermined quantity is the antenna amount of base station；

Step S304: terminal is measured pilot tone according to channel status and performed channel measurement, and to base station feedback channel Status information.

By the present embodiment, use terminal to receive specified quantity group channel status respectively and measure pilot tone, and according to being somebody's turn to do Channel status measures pilot tone to base station feedback channel condition information so that terminal can be to base station feedback channel status Information.

The terminal related to for the present embodiment receives the specified quantity group channel status measurement pilot tone that base station sends Mode can include one below:

Mode one: terminal receives the specified quantity group channel status measurement that base station sends in the 3rd quantity subframe Pilot tone；

Mode two: terminal receives the specified quantity group channel shape that base station sends on the 4th quantity Resource Block RB State measures pilot tone；

Mode three: terminal receives the specified quantity group channel status that base station sends in the 5th quantity pilot frequency locations Measure pilot tone.

Receive the mode of the specified quantity group channel status measurement pilot tone that base station sends based on above-mentioned terminal, terminal depends on It is believed that state measurement pilot tone performs the mode of channel measurement and can also include one below:

Mode one: terminal performs channel measurement in subframe；

Mode two: perform channel measurement on terminal appointment RB in the 4th quantity Resource Block RB；

Mode three: perform channel measurement in terminal appointment pilot frequency locations in the 5th quantity pilot frequency locations.

Alternatively, channel status measurement pilot tone includes at least one of: channel state information reference signals CSI-RS, reference signal CRS of cell-specific.

Additionally providing a kind of channel status in the present embodiment and measure the processing means of pilot tone, this device is used for realizing Above-described embodiment and optional embodiment, carried out repeating no more of explanation.As used below, art Language " module " " unit " can realize the software of predetermined function and/or the combination of hardware.Although following example Described device preferably realizes with software, but hardware, or the realization of the combination of software and hardware is also May and be contemplated.

Fig. 4 is the processing means structure money figure one that channel status according to embodiments of the present invention measures pilot tone, this dress Setting in base station side, as shown in Figure 4, this device also includes: be divided into module 42, for being surveyed by channel status Amount pilot tone is divided into specified quantity group, and wherein, it is predetermined quantity dimension that channel status measures pilot tone, and this predetermined quantity is The antenna amount of base station；Sending module 44, is of coupled connections with being divided into module 42, for according to specified quantity group Sending channel status to terminal respectively and measure pilot tone, wherein, channel status is measured pilot tone and is used for indicating terminal to perform Channel measurement；First receiver module 46, is of coupled connections with sending module 44, is used for receiving described terminal feedback Channel condition information, wherein, it is pre-that described channel condition information is used for indicating described base station to perform described terminal Coded treatment.

Alternatively, it is intended that sets of numbers channel status is measured pilot tone and included: the first kind channel status of the first sets of numbers The Equations of The Second Kind channel status measuring pilot tone and the second sets of numbers measures pilot tone；Wherein, survey from first kind channel status The often group of amount pilot tone is chosen an element and separately constitutes the Equations of The Second Kind channel status measurement pilot tone of the second sets of numbers. Wherein, it is intended that the quantity that the channel status of sets of numbers measures each group of channel measurement pilot frequency in pilot tone is equal, refers to The channel status of determined number group measures the dimension sum of pilot tone more than predetermined quantity.

Sending module 42 for the present embodiment includes alternatively: the first transmitting element, in the 3rd quantity Send channel status to terminal respectively with predetermined period foundation specified quantity group in individual subframe and measure pilot tone；Or the Two transmitting elements, for sending letter to terminal respectively according to specified quantity group on the 4th quantity Resource Block RB Road state measurement pilot tone；Or, the 3rd transmitting element, for using the 5th quantity pilot frequency locations according to specifying number Amount group sends channel status to terminal respectively and measures pilot tone.

Alternatively, channel status measurement pilot tone includes at least one of: channel state information reference signals CSI-RS, reference signal CRS of cell-specific.

Fig. 5 is the processing means structured flowchart two that channel status according to embodiments of the present invention measures pilot tone, this dress Setting in end side, as it is shown in figure 5, this device also includes: the second receiver module 52, it is used for receiving base station The specified quantity group channel status sent measures pilot tone, and wherein, it is predetermined quantity dimension that channel status measures pilot tone, This predetermined quantity is the antenna amount of base station；Perform module 54, be of coupled connections with the second receiver module 52, use Channel measurement is performed in measuring pilot tone according to channel status, and to base station feedback channel condition information.

Alternatively, this receiver module 52 may include that the first reception unit, is used for receiving base station at the 3rd number The specified quantity group channel status sent in amount subframe measures pilot tone；Or, second receives unit, is used for receiving The specified quantity group channel status that base station sends on the 4th quantity Resource Block RB measures pilot tone；Or, the 3rd Receiving unit, the specified quantity group channel status sent in the 5th quantity pilot frequency locations for receiving base station is surveyed Amount pilot tone.

Alternatively, this execution module 54 may include that the first performance element, for performing channel in subframe Measure；Or, the second performance element, on the appointment RB in the 4th quantity Resource Block RB, perform letter Road is measured；Or, the 3rd performance element, hold in the appointment pilot frequency locations in the 5th quantity pilot frequency locations Row channel measurement.

Alternatively, channel status measurement pilot tone includes at least one of: channel state information reference signals CSI-RS, reference signal CRS of cell-specific.

The present invention is illustrated by the alternative embodiment below in conjunction with the present invention；

This alternative embodiment provides a kind of channel status and measures the processing method of pilot tone, the side of this alternative embodiment Method includes:

Step S302: base station eNB sends Nt dimension channel status to terminal UE and measures pilot tone, base station eNB Nt is tieed up channel status measurement pilot tone and is divided into M group, send to terminal UE respectively；Wherein, M is more than 1 Positive integer.M group channel status is measured pilot tone and is measured pilot tone and Q group second by P group first kind channel status Class channel status measures pilot tone composition.Any one Equations of The Second Kind channel status measures pilot tone all by the N group first kind Often group n that channel status is measured in pilot tone is elementary composition.Wherein P, Q are positive integer, and P+Q=M； Wherein P >=N >=2, n >=1, this Nt is the antenna amount of base station.

Step S304: terminal UE receives the channel measurement pilot frequency that base station sends, uses a pilot for channel and surveys Amount, and to base station feedback channel state information reference signals CSI information.Base station is according to the CSI of terminal feedback Information and the CSI information of pilot packet situation synthesis Nt dimension, utilize this Nt Vc SI information to carry out terminal Precoding.

Alternatively, for every group element in remaining packet number N in this alternative embodiment and remaining packet Number n is can be configured by base station, and this base station sends M group channel shape to terminal in N1 subframe respectively State measures pilot tone；Wherein N1 is positive integer；N1 is the positive integer less than or equal to M；N1 subframe is the cycle Send；The transmission cycle T of N1 subframe is to be configured by base station eNB；

In the channel measurement pilot frequency of M group, often group comprises k_mDimension channel measurement pilot frequency；Wherein k_mFor positive integer, M=1 ... M；k_mThe most equal；Wherein m=1 ... M；The channel measurement pilot frequency dimension sum of M groupIt is more than Nt；

Base station sends M group channel status to terminal eNB respectively on N2 Resource Block RB and measures pilot tone； Wherein N2 is positive integer, and this N2 is the positive integer less than or equal to M；

Alternatively, base station eNB uses N3 set pilot frequency locations to send M group channel status to terminal eNB respectively Measure pilot tone；Wherein N3 is positive integer；N3 is the positive integer less than or equal to M；Packet count M, N1, N2, N3, can be configured by base station；

Alternatively, N2 RB position informing terminal, terminal are carried out channel on predetermined RB position by base station Measure, and by information feedback to base station；

Alternatively, N3 is overlapped pilot tone notice terminal by base station, and terminal carries out channel measurement on predetermined pilot position, And by information feedback to base station；

Alternatively, channel status measurement pilot tone at least includes CSI-RS；Or, channel status measures pilot tone extremely Include less to CRS；

This alternative embodiment is described in detail by the optional embodiment below in conjunction with this alternative embodiment；

Optional embodiment 1

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 2.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group, wherein M=5 by base station, and often group is 4Tx Measurement pilot tone (measure pilot tone can be CRS or CSI-RS).M=1～4 measures pilot tone for the first kind, M=5 is that Equations of The Second Kind measures pilot tone.Wherein, antenna number and the corresponding relation of group number are as shown in table 1-1:

M group number	Antenna number
		1	0 1 2 3
2	4 5 6 7
		3	8 9 10 11
4	12 13 14 15
		5	04812

Terminal receives 4Tx and measures pilot tone, and utilizes pilot tone to do channel measurement, it is thus achieved that 4Tx code book, CQI With RI, and respectively to base station feedback CSI information.

Base station is respectively received 5 CSI information on a predetermined position, and base station utilizes in 5 CSI information CQI obtains total CQI, utilizes the RI in 5 CSI information to obtain total RI；Utilize 5 CSI information In PMI obtain total PMI.

Base station utilizes the total channel information obtained, and terminal is carried out precoding processing.

Optional embodiment 2

The antenna number of base station eNB is 32, and the reception antenna number of terminal is 2.Base station sends 32Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group, wherein M=5 by base station, and often group is 8Tx Or the measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 4Tx.Wherein, antenna number and group Number corresponding relation as shown in table 2-1:

Group number	Antenna number
		1	0 1 2 3 4 5 6 7
2	8 9 10 11 12 13 14 15
		3	16 17 18 19 20 21 22 23
4	24 25 26 27 28 29 30 31
		5	0 8 16 24

Terminal receives measurement pilot tone, utilizes pilot tone to do channel measurement, it is thus achieved that CSI information, and respectively to base station Feedback CSI information；Table 2-2:8Tx rank1-2 code book:

v_m=[1 e^j2πm/32 e^j4πm/32 e^j6πm/32]^T

Table 2-3:4Tx rank1-2 code book

Base station obtains the CSI information of terminal feedback on a predetermined position, it is assumed that

M=1, RI=1, PMI=0；

M=2, RI=1, PMI=0；

M=3, RI=1, PMI=1；

M=4, RI=1, PMI=4；

M=5, RI=1, PMI=0.

Base station is respectively received 5 CSI information, and it is total that base station utilizes the CQI in 5 CSI information to obtain CQI, utilizes the RI in 5 CSI information to obtain total RI；The PMI in 5 CSI information is utilized to obtain Total PMI.

Computational methods are as follows:

5 code words obtained are respectively as follows:

[1 1 1 1 1 1 1 1]^T, [1 111111 1]^T, [1 111 j j j j]^T,

${\left[\begin{array}{cccccccc}1& e^{j\frac{\mathrm{\π}}{16}}& e^{j\frac{2\mathrm{\π}}{16}}& e^{j\frac{3\mathrm{\π}}{16}}& 1& e^{j\frac{\mathrm{\π}}{16}}& e^{j\frac{2\mathrm{\π}}{16}}& e^{j\frac{3\mathrm{\π}}{16}}\end{array}\right]}^T,{\left[\begin{array}{cccc}1& 1& 1& 1\end{array}\right]}^T$

Base station is first with front 4 code words synthesis

$\frac{1}{\sqrt{32}}{\left[\begin{array}{ccccccccccccccccccccccccccccccc}1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 1& 11& 1& 1& 1& j& j& j& j& 1& e^{j\frac{\mathrm{\π}}{16}}& e^{j\frac{2\mathrm{\π}}{16}}& e^{j\frac{3\mathrm{\π}}{16}}& 1& e^{j\frac{\mathrm{\π}}{16}}& e^{j\frac{2\mathrm{\π}}{16}}& e^{j\frac{3\mathrm{\π}}{16}}\end{array}\right]}^T$

Finally recycle the phase place adjustment that 4 antenna codebooks carry out between antenna, it is thus achieved that final code word.

Base station utilizes the total channel information obtained, and terminal is carried out precoding processing.

Optional embodiment 3

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 1.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, and base station packet count M is permissible Configured by base station, such as, table 3-1: base station side M value allocation list:

Such as, take M=3, often group for 8Tx or 4Tx measurement pilot tone (measure pilot tone can be CRS or CSI-RS).Fig. 6 is that the base station according to alternative embodiment of the present invention sends letter to terminal on 3 TTI respectively Road state measurement pilot tone schematic diagram, as shown in Figure 6, base station sends the 8Tx pilot tone of M=1 on TTI1, TTI2 sends the 8Tx pilot tone of M=2, TTI3 sends the 4Tx pilot tone of M=3.

Terminal obtains pilot tone, and measures channel status, feeds back channel condition information CSI respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information, Computational methods are as shown in optional embodiment 2.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 4

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 1.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=3, and often group is The measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 8Tx or 4Tx.Base station is at 3 TTI It is upper respectively to terminal transmission channel status measurement pilot tone, as it is shown in figure 5, base station sends M=1 on TTI1 8Tx pilot tone, TTI2 sends the 8Tx pilot tone of M=2, the 4Tx sending M=3 on TTI3 leads Frequently.Wherein TTI1-3 can be to send in the cycle, and it is optional according to the present invention that the transmission cycle is set to T, Fig. 7 a The discontinuous TTI schematic diagram one that cycle of embodiment sends, Fig. 7 b is non-according to alternative embodiment of the present invention The discontinuous TTI schematic diagram one that cycle sends, as illustrated in figs. 7 a and 7b:

Terminal obtains pilot tone, measures channel status, feeds back channel condition information CSI respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information, Computational methods are as shown in optional embodiment 2.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 5

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 1.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=3, and often group is The measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 8Tx or 4Tx.Base station is at 3 TTI It is upper that respectively to terminal transmission channel status measurement pilot tone, base station sends the 8Tx pilot tone of M=1 on TTI1, TTI2 sends the 8Tx pilot tone of M=2, TTI3 sends the 4Tx pilot tone of M=3.Wherein TTI1-3 Can be to send in the cycle, it be to send out in the cycle according to alternative embodiment of the present invention that the transmission cycle is set to T, Fig. 8 a The discontinuous TTI schematic diagram two sent, Fig. 8 b is the non-company sent the aperiodic according to alternative embodiment of the present invention Continuous TTI schematic diagram two, as shown in figs. 8 a and 8b:

The transmission cycle of pilot tone is configured by base station, as shown in the configuration pilot tone transmission cycle of table 5-1 base station:

Index	Cycle (TTI)
		0	5
1	10
		2	15
3	20

The most base station selected period assignment 1, then base station sends M survey every 10 TTI to terminal Amount pilot tone.

Terminal obtains pilot tone, and measures channel status, feeds back channel condition information CSI respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information, Computational methods are as shown in optional embodiment 2.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 6

The antenna number of base station eNB is 32, and the reception antenna number of terminal is 4.Base station sends 32Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=5, and often group is The measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 8Tx or 4Tx.Base station is on 5 RB Sending channel status to terminal respectively and measure pilot tone, Fig. 9 is sending out on RB according to alternative embodiment of the present invention Send pilot tone schematic diagram, as it is shown in figure 9, base station sends 8Tx pilot tone on RB1-4, RB5 sends 4Tx Pilot tone.

Terminal obtains pilot tone respectively, and measures channel status, carries out channel condition information CSI respectively Feedback.Base station receives the CSI information of terminal feedback respectively, and believes according to the CSI that the synthesis of this CSI information is total Breath.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 7

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 2.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=3, and often group is Measurement pilot tone CSI-RS of 8Tx or 2Tx.3 set pilot tones are used to send to terminal respectively on the RB of 1, base station Channel status measures pilot tone, and Figure 10 is the CSI-RS RE position view according to alternative embodiment of the present invention, As shown in Figure 10, base station sends 8Tx pilot tone on RB1-4, sends 4Tx pilot tone on RB5.

In Fig. 10, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=1 of #0, base Station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=2 of #1, and base station utilizes the CSI-RS of #2 Pattern sends the CSI-RS of the 2Tx of M=3.

Terminal obtains pilot tone, and measures channel status, feeds back channel condition information CSI respectively. Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information.Base Stand, according to total CSI information, terminal is carried out precoding processing.

Optional embodiment 8

The antenna number of base station eNB is 32, and the reception antenna number of terminal is 2.Base station sends 32Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=5, and often group is Measurement pilot tone CSI-RS of 8Tx or 4Tx.Base station uses many set pilot tones to send out to terminal respectively on multiple TTI Channels state measurement pilot tone, Figure 11 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram One, as shown in figure 11, base station sends 3 set pilot tones on TTI1, sends 2 set pilot tones on TTI2.

In fig. 11, base station, in first TTI, utilizes the CSI-RS pattern of #0 to send M=1's The CSI-RS of 8Tx, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=2 of #1, base station The CSI-RS pattern utilizing #2 sends the CSI-RS of the 4Tx of M=5.Base station in second TTI, The CSI-RS pattern utilizing #0 sends the CSI-RS of the 8Tx of M=3, and base station utilizes the CSI-RS of #1 Pattern sends the CSI-RS of the 8Tx of M=4.

Terminal obtains pilot tone respectively on CSI-RS RE position, and measures channel status, to channel Status information CSI is fed back respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information. Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 9

The antenna number of base station eNB is 32, and the reception antenna number of terminal is 2.Base station sends 32Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=5, and often group is Measurement pilot tone CSI-RS of 8Tx or 4Tx.Base station uses many set pilot tones to send out to terminal respectively on multiple TTI Channels state measurement pilot tone, Figure 12 is that the base station according to alternative embodiment of the present invention sends CSI-RS signal Figure two, as shown in figure 12, base station sends 2 set pilot tones on RB1, sends 2 set pilot tones on RB2.

In fig. 12, base station, in first RB, utilizes the CSI-RS pattern of #0 to send the 8Tx of M=1 CSI-RS, base station utilizes the CSI-RS pattern of #1 to send the CSI-RS of 8Tx of M=2；Base station exists In second RB, utilizing the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=3 of #0, base station utilizes The CSI-RS pattern of #1 sends the CSI-RS of the 8Tx of M=4, and base station utilizes the CSI-RS pattern of #2 Send the CSI-RS of the 4Tx of M=5.

Terminal obtains pilot tone on CSI-RS RE position, and measures channel status, to channel status Information CSI is fed back respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information. Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 10

The antenna number of base station eNB is 64, and the reception antenna number of terminal is 2.Base station sends 64Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=9, and often group is Measurement pilot tone CSI-RS of 8Tx.Base station uses multiple RB to send channel to terminal respectively on multiple TTI State measurement pilot tone, Figure 13 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram three, As shown in figure 13, base station utilizes 5 RB to send 5 set pilot tones on TTI1, utilizes 4 on TTI2 RB sends 4 set pilot tones.

Terminal obtains pilot tone on setting position, and measures channel status, to channel condition information CSI Feed back respectively.

Base station receives the CSI information of terminal feedback respectively on predetermined position, and closes according to this CSI information Become total CSI information.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 11

The antenna number of base station eNB is 64, and the reception antenna number of terminal is 2.Base station sends 64Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=9, and often group is Measurement pilot tone CSI-RS of 8Tx.Base station uses many set pilot tones respectively to end on multiple RB of multiple TTI End sends channel status and measures pilot tone, and Figure 14 is that the base station according to alternative embodiment of the present invention sends CSI-RS Schematic diagram four, as shown in figure 14, base station RB1 on TTI1 sends 2 set pilot tones, sends out on RB2 Send 3 set pilot tones；Send 2 set pilot tones on the RB1 on TTI2 of the base station, RB2 sends 2 set pilot tones.

In fig. 14, base station, in the RB1 of first TTI, utilizes the CSI-RS pattern of #0 to send The CSI-RS of the 8Tx of M=1, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=2 of #1； Base station, in RB2, utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=3 of #0, base station profit Send the CSI-RS of the 8Tx of M=4 with the CSI-RS pattern of #1, base station utilizes the CSI-RS pattern of #2 Send the CSI-RS of the 8Tx of M=5.Base station, and in the RB1 of individual TTI, utilizes the CSI-RS of #0 Pattern sends the CSI-RS of the 8Tx of M=6, and base station utilizes the CSI-RS pattern of #1 to send M=7's The CSI-RS of 8Tx；Base station, in RB2, utilizes the 8Tx's of the CSI-RS pattern transmission M=8 of #0 CSI-RS, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=9 of #1.

Terminal obtains pilot tone on CSI-RS RE position, and measures channel status, to channel status Information CSI is fed back respectively.

Base station receives the CSI information of terminal feedback the most respectively, and synthesizes according to this CSI information Total CSI information.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 12

The antenna number of base station eNB is 64, and the reception antenna number of terminal is 2.Base station sends 64Tx to terminal UE Channel status measure pilot tone, base station uses pilot tone of overlapping to send out to terminal respectively on multiple RB of multiple TTI more Channels state measurement pilot tone, base station is that terminal configuration sends the TTI number N1 used by pilot tone, table 12-1: base Configuration M value of standing and TTI number signal table, as shown in table 12-1:

As shown in table 12-1, base station is the Index=0 that terminal is configured with 64Tx, namely selects M=9, and Completing in 2 TTI to send, Figure 15 is that the base station according to alternative embodiment of the present invention sends CSI-RS schematic diagram Five, it is assumed that launch pilot tone pattern as shown in figure 15, the RB1 on TTI1 sends 2 set pilot tones, at RB2 Pilot tone is overlapped in upper transmission 3；Send 2 set pilot tones on the RB1 on TTI2 of the base station, RB2 sends 2 sets Pilot tone.

In fig .15, base station, in the RB1 of first TTI, utilizes the CSI-RS pattern of #0 to send The CSI-RS of the 8Tx of M=1, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=2 of #1； Base station, in RB2, utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=3 of #0, base station profit Send the CSI-RS of the 8Tx of M=4 with the CSI-RS pattern of #1, base station utilizes the CSI-RS pattern of #2 Send the CSI-RS of the 8Tx of M=5.Base station, and in the RB1 of individual TTI, utilizes the CSI-RS of #0 Pattern sends the CSI-RS of the 8Tx of M=6, and base station utilizes the CSI-RS pattern of #1 to send M=7's The CSI-RS of 8Tx；Base station, in RB2, utilizes the 8Tx's of the CSI-RS pattern transmission M=8 of #0 CSI-RS, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=9 of #1.

Terminal obtains pilot tone in position, and measures channel status, to channel condition information CSI respectively Feed back.

Base station receives the CSI information of terminal feedback the most respectively, and synthesizes according to this CSI information Total CSI information.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 13

The antenna number of base station eNB is 64, and the reception antenna number of terminal is 2.Base station sends 64Tx to terminal UE Channel status measure pilot tone, base station uses pilot tone of overlapping to send out to terminal respectively on multiple RB of multiple TTI more Channels state measurement pilot tone, base station is that terminal configuration sends the RB number N2 used by pilot tone, table 13-1: base Configuration M value of standing and RB number signal table, as shown in table 13-1:

As shown in table 13-1, base station is the Index=0 that terminal is configured with 64Tx, namely selects M=9, and Sending in 3 RB, Figure 16 is that the base station according to alternative embodiment of the present invention sends measurement pilot tone schematic diagram, false If launching pilot tone pattern as shown in figure 16, TTI1-TTI3 being respectively adopted 3 RB and sends pilot tone.

Terminal obtains pilot tone on the position measuring pilot tone, and measures channel status, believes channel status Breath CSI feeds back respectively.

Base station receives the CSI information of terminal feedback the most respectively, and synthesizes according to this CSI information Total CSI information.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 14

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 2.Base station sends 16Tx to terminal UE Channel status measure pilot tone, base station uses many set pilot tones to send channel status to terminal respectively and measures pilot tone, base Stand and send the tricks number N3 used by pilot tone, table 14-1: base station configuration M value and tricks signal table for terminal configuration, As shown in table 14-1:

As shown in table 14-1, base station is the Index=0 that terminal is configured with 16Tx, namely selects M=3, uses 3 set pilot tones send channel status pilot tone, and Figure 17 is the CSI-RS RE position according to alternative embodiment of the present invention Schematic diagram, as shown in figure 17.Figure use #0 and yellow CSI-RS RE position send the CSI-RS of 8Tx, The RE position using #2 sends the measurement pilot tone of 2Tx.

Terminal obtains pilot tone on the position measuring pilot tone, and measures channel status, believes channel status Breath CSI feeds back respectively.

Base station receives the CSI information of terminal feedback respectively, and synthesizes total CSI information according to this CSI information. Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 15

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 1.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=3, and often group is The measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 8Tx or 4Tx.Base station is at 3 TTI It is upper that respectively to terminal transmission channel status measurement pilot tone, base station sends the 8Tx pilot tone of M=1 on TTI1, TTI2 sends the 8Tx pilot tone of M=2, TTI3 sends the 4Tx pilot tone of M=3.Wherein TTI1-3 Can be to send in the cycle, it be to send out in the cycle according to alternative embodiment of the present invention that the transmission cycle is set to T, Figure 18 a The continuous T TI schematic diagram three sent, Figure 18 b is the continuous of transmission aperiodic according to alternative embodiment of the present invention TTI schematic diagram three, as shown in Figure 18 a and 18b:

The transmission cycle of pilot tone is configured by base station, and table 15-1: base station configuration pilot tone sends the cycle, such as table Shown in 15-1:

Index

Cycle (TTI)

0	5
		1	10
2	15
		3	20

The most base station selected period assignment 1, then base station sends M survey every 10 TTI to terminal Amount pilot tone.

Base station is by information notice terminal UE such as packet count M and TTI positions.

Terminal obtains channel condition information pilot tone the most respectively, according to cycle T etc. to channel status Measure, and be grouped channel condition information CSI is fed back respectively.

Base station receives the CSI information of terminal feedback the most respectively, and synthesizes according to this CSI information Total CSI information, computational methods as shown in alternative embodiment 2, base station according to total CSI information to terminal Carry out precoding processing.

Optional embodiment 16

The antenna number of base station eNB is 32, and the reception antenna number of terminal is 4.Base station sends 32Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=5, and often group is The measurement pilot tone (measuring pilot tone can be CRS or CSI-RS) of 8Tx or 4Tx.Base station is on 5 RB Respectively to terminal send channel status measure pilot tone, Figure 19 be according to alternative embodiment of the present invention on RB Sending pilot tone schematic diagram, as shown in figure 19, base station sends 8Tx pilot tone on RB1-4, sends out on RB5 Send 4Tx pilot tone.Base station by the RB position informing at packet count M and pilot tone place to terminal.

Terminal obtains pilot tone on predetermined RB position respectively, and measures channel status letter respectively, will letter Channel state information CSI feeds back respectively.Base station receives the CSI information of terminal feedback respectively, and according to this The CSI information that the synthesis of CSI information is total.Base station carries out precoding processing according to total CSI information to terminal.

Optional embodiment 17

The antenna number of base station eNB is 16, and the reception antenna number of terminal is 2.Base station sends 16Tx to terminal UE Channel status measure pilot tone, channel measurement pilot frequency is divided into M group by base station, such as, take M=3, and often group is Measurement pilot tone CSI-RS of 8Tx or 2Tx.3 set pilot tones are used to send to terminal respectively on the RB of 1, base station Channel status measures pilot tone, and Figure 20 is the CSI-RS RE position view according to alternative embodiment of the present invention, As shown in figure 20, base station sends 8Tx pilot tone on RB1-4, sends 4Tx pilot tone on RB5.Base station By the pilot tone tricks of pilot packet situation M and employing and position informing to terminal.

In fig. 20, base station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=1 of #0, base Station utilizes the CSI-RS of the 8Tx of the CSI-RS pattern transmission M=2 of #1, and base station utilizes the CSI-RS of #2 Pattern sends the CSI-RS of the 2Tx of M=3.

Terminal obtains pilot tone the most respectively, and measures channel status respectively, to channel status Information CSI is fed back respectively.

Base station receives the CSI information of terminal feedback the most respectively, and synthesizes according to this CSI information Total CSI information.Base station carries out precoding processing according to total CSI information to terminal.

Figure 21 is the different 64Tx code books according to alternative embodiment of the present invention and channel correlation coefficient schematic diagram, As shown in figure 21, channel is correlated channels, and launching antenna is 64 antennas and 8 antennas, compared for different 64 antenna pilots send and the code book under code book feedback method and channel relevancy.In Fig. 1, the line of the rightmost side is Current R128Tx code book and the matching degree of channel, right side Article 2 line is the channel status of narration in the present embodiment Information sends and under feedback method, the code book of selection and the correlation coefficient of channel.Left side Article 1 line represents 64 Stochastic generation code book during antenna；Left side Article 2 line represents the 8Tx code book random combine of R12 is obtained 64Tx Code book.

Although it can be seen from figure 21 that antenna number rises to 64 antennas, but correlation coefficient is with 8Tx's R12 code book difference and few.Performance is far better than the 64Tx code book of left side two lines.

By this alternative embodiment, use the terminal mode from the unauthorized carrier wave of line activating, relative to correlation technique In can the resource competed of more good utilisation.

In another embodiment, additionally providing a kind of software, this software is used for performing above-described embodiment and excellent Select the technical scheme described in embodiment.

In another embodiment, additionally providing a kind of storage medium, in this storage medium, storage has above-mentioned soft Part, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc..

Obviously, those skilled in the art should be understood that each module of the invention described above or each step can be with logical Calculating device realize, they can concentrate on single calculating device, or is distributed in multiple calculating On the network that device is formed, alternatively, they can realize with calculating the executable program code of device, Perform it is thus possible to be stored in storing in device by calculating device, and in some cases, can With be different from order herein perform shown or described by step, or they are fabricated to respectively each collection Become circuit module, or the multiple modules in them or step are fabricated to single integrated circuit module realize. So, the present invention is not restricted to the combination of any specific hardware and software.

Above are only the alternative embodiment of the present invention, be not limited to the present invention, for this area For technical staff, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, Any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (22)

1. the processing method of a channel status measurement pilot tone, it is characterised in that also include:

Channel status is measured pilot tone and is divided into specified quantity group by base station, and wherein, described channel status measurement is led Frequency is tieed up for predetermined quantity, and this predetermined quantity is the antenna amount of described base station；

Described base station sends described channel status to terminal respectively according to described specified quantity group and measures pilot tone, Wherein, described channel status measurement pilot tone is used for indicating described terminal to perform channel measurement；

Described base station receives the channel condition information of described terminal feedback, wherein, described channel condition information For indicating described base station that described terminal is performed precoding processing；

Wherein, described specified quantity group channel status measurement pilot tone includes: the first kind letter of the first sets of numbers The Equations of The Second Kind channel status of road state measurement pilot tone and the second sets of numbers measures pilot tone；Wherein, described second The described Equations of The Second Kind channel status of sets of numbers is measured pilot tone and is measured pilot tone by from described first kind channel status Often group in choose one or more element and separately constitute.

Method the most according to claim 1, it is characterised in that the channel status of described specified quantity group is measured The quantity of each group of channel measurement pilot frequency in pilot tone is equal.

Method the most according to claim 1, it is characterised in that the channel status of described specified quantity group is measured The dimension sum of pilot tone is more than described predetermined quantity.

Method the most according to claim 1, it is characterised in that described base station is according to described specified quantity component Do not send described channel status measurement pilot tone to terminal to include:

Described base station in the 3rd quantity subframe with predetermined period and according to described specified quantity group respectively Send described channel status to described terminal and measure pilot tone.

Method the most according to claim 1, it is characterised in that described base station is according to described specified quantity component Do not send described channel status measurement pilot tone to terminal to include:

Described base station on the 4th quantity Resource Block RB according to described specified quantity group respectively to described end End sends described channel status and measures pilot tone.

Method the most according to claim 1, it is characterised in that described base station is according to described specified quantity component Do not send described channel status measurement pilot tone to terminal to include:

Described base station uses the 5th quantity pilot frequency locations according to described specified quantity group respectively to described end End sends described channel status and measures pilot tone.

7. according to the method described in any one of claim 1 to 6, it is characterised in that described channel status measurement is led Frequency includes at least one of: channel state information reference signals CSI-RS, the reference signal of cell-specific CRS。

8. the processing method of a channel status measurement pilot tone, it is characterised in that also include:

Terminal receives the specified quantity group channel status measurement pilot tone that base station sends, wherein, described channel shape It is predetermined quantity dimension that state measures pilot tone, and this predetermined quantity is the antenna amount of described base station；

Described terminal is measured pilot tone according to described channel status and is performed channel measurement, and to described base station feedback Channel condition information.

Method the most according to claim 8, it is characterised in that terminal receives the specified quantity group that base station sends Channel status is measured the mode of pilot tone and is included one below:

Described terminal receives the described specified quantity group letter that described base station sends in the 3rd quantity subframe Road state measurement pilot tone；

Described terminal receives the described specified quantity that described base station sends on the 4th quantity Resource Block RB Group channel status measures pilot tone；

Described terminal receives the described specified quantity that described base station sends in the 5th quantity pilot frequency locations Group channel status measures pilot tone.

Method the most according to claim 9, it is characterised in that described terminal is measured according to described channel status Pilot tone performs the mode of channel measurement and includes one below:

Described terminal performs channel measurement in described subframe；

Channel measurement is performed on described terminal appointment RB in described 4th quantity Resource Block RB；

Perform channel in described terminal appointment pilot frequency locations in described 5th quantity pilot frequency locations to survey Amount.

11. according to Claim 8 to the method described in 10 any one, it is characterised in that described channel status is measured Pilot tone includes at least one of: channel state information reference signals CSI-RS, the reference of cell-specific are believed Number CRS.

12. 1 kinds of channel status measure the processing means of pilot tone, are positioned at base station side, it is characterised in that also include:

It is divided into module, is divided into specified quantity group, wherein, described channel for channel status is measured pilot tone State measurement pilot tone is predetermined quantity dimension, and this predetermined quantity is the antenna amount of described base station；

Sending module, measures for sending described channel status to terminal respectively according to described specified quantity group Pilot tone, wherein, described channel status is measured pilot tone and is used for indicating described terminal to perform channel measurement；

First receiver module, for receiving the channel condition information of described terminal feedback, wherein, described letter Channel state information is used for indicating described base station that described terminal is performed precoding processing；

Wherein, described specified quantity group channel status measurement pilot tone includes: the first kind letter of the first sets of numbers The Equations of The Second Kind channel status of road state measurement pilot tone and the second sets of numbers measures pilot tone；Wherein, described second The described Equations of The Second Kind channel status of sets of numbers is measured pilot tone and is measured pilot tone by from described first kind channel status Often group in choose one or more element and separately constitute.

13. devices according to claim 12, it is characterised in that the channel status of described specified quantity group is surveyed The quantity of each group of channel measurement pilot frequency in amount pilot tone is equal.

14. devices according to claim 12, it is characterised in that the channel status of described specified quantity group is surveyed The dimension sum of amount pilot tone is more than described predetermined quantity.

15. devices according to claim 12, it is characterised in that described sending module includes:

First transmitting element, is used in the 3rd quantity subframe with predetermined period and according to described appointment number Amount group sends described channel status to described terminal respectively and measures pilot tone.

16. devices according to claim 12, it is characterised in that described sending module includes:

Second transmitting element, is used on the 4th quantity Resource Block RB according to described specified quantity component Do not send described channel status to described terminal and measure pilot tone.

17. devices according to claim 12, it is characterised in that described sending module includes:

3rd transmitting element, for using the 5th quantity pilot frequency locations according to described specified quantity group respectively Send described channel status to described terminal and measure pilot tone.

18. according to the device described in any one of claim 12 to 17, it is characterised in that described channel status is measured Pilot tone includes at least one of: channel state information reference signals CSI-RS, the reference of cell-specific are believed Number CRS.

19. 1 kinds of channel status measure the processing means of pilot tone, are positioned at end side, it is characterised in that also include:

Second receiver module, for receiving the specified quantity group channel status measurement pilot tone that base station sends, its In, it is predetermined quantity dimension that described channel status measures pilot tone, and this predetermined quantity is the antenna number of described base station Amount；

Perform module, perform channel measurement for measuring pilot tone according to described channel status, and to described base Stand feeding back channel state information.

20. devices according to claim 19, it is characterised in that described second receiver module includes with purgation One:

First receives unit, for receiving the described appointment that described base station sends in the 3rd quantity subframe Sets of numbers channel status measures pilot tone；

Second receives unit, for receiving the institute that described base station sends on the 4th quantity Resource Block RB State specified quantity group channel status and measure pilot tone；

3rd receives unit, for receiving described in described base station sends in the 5th quantity pilot frequency locations Specified quantity group channel status measures pilot tone.

21. devices according to claim 20, it is characterised in that described execution module includes one below:

First performance element, for performing channel measurement in described subframe；

Second performance element, performs letter on the appointment RB in described 4th quantity Resource Block RB Road is measured；

3rd performance element, holds in the appointment pilot frequency locations in described 5th quantity pilot frequency locations Row channel measurement.

22. according to the device described in any one of claim 19 to 21, it is characterised in that described channel status is measured Pilot tone includes at least one of: channel state information reference signals CSI-RS, the reference of cell-specific are believed Number CRS.