CN108370517A

CN108370517A - Reference signal is sent and method, sending device and the terminal device of channel measurement

Info

Publication number: CN108370517A
Application number: CN201580085399.0A
Authority: CN
Inventors: 刘建琴
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2018-08-03
Also published as: WO2017107067A1

Abstract

The invention discloses method, the method for channel measurement, sending device and terminal devices that a kind of reference signal is sent.The reference signal send method include：N number of first order reference signal resource configuration is sent to terminal device；It is configured to the terminal device according to each first order reference signal resource and sends the first reference signal；Obtain the information of the first configuration in N number of first order reference signal resource configuration.The embodiment of the present invention can improve the selection flexibility ratio of first order reference signal resource configuration.

Description

Reference signal is sent and method, sending device and the terminal device of channel measurement

Technical field

The present invention relates to the communications fields, and more particularly, to method, the method for channel measurement, sending device and the terminal device that reference signal is sent.

Background technique

Multiple antennas multiple-input, multiple-output (Multiple Input Multiple Output, MIMO) technology has been widely used in wireless communication system the covering for improving power system capacity and guaranteeing cell.Such as long term evolution (long term evolution, LTE) downlink of system uses the space division multiplexing of transmission diversity, open/close based on multiple antennas and is based on the multiple stream transmission of demodulated reference signal (demodulation reference signal, DM-RS).Multiple stream transmission based on DM-RS is the prevailing transmission mode of the advanced evolution of LTE (LTE-Advanced, LTE-A) system and follow-up system.The process of multiple stream transmission based on DM-RS is: user equipment (User Equipment, UE) first according to base station (such as evolution base station evolved Node B, eNB or e-NodeB) configuration channel state information reference signals (channel state information reference signal, CSI-RS channel measurement) is carried out, measurement result includes transmission rank, at least one of pre-coding matrix corresponding to transmission rank and the transmission rank and the corresponding channel quality instruction (Channel Quality Indicator, CQI) of pre-coding matrix；Then UE gives eNB measurement feedback；ENB carries out descending scheduling further according to the measurement result that UE is fed back, and Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) is sent to UE by DM-RS according to scheduling result.Currently, the multiple stream transmission based on DM-RS is all two-dimensional wave beam forming, i.e. transmission antenna is all horizontal positioned, can only generate the wave beam of horizontal direction.

In order to further increase the performance of multiaerial system, just in the antenna configuration of study two-dimensional, i.e. antenna is placed in horizontal and vertical two dimensions simultaneously, so as to carry out the wave beam forming on both horizontally and vertically simultaneously, referred to as three-dimensional wave beam forming.In this way, relative to current two dimensional beam figuration, increase a wave beam forming freedom degree in vertical direction, more UE can be so multiplexed on same running time-frequency resource, different UE is distinguished by the shaped-beam on vertically and/or horizontally, improves the utilization rate or spectrum efficiency of resource.

The antenna port sum maximum for the two-dimensional antenna configuration being currently discussed can reach 512.With the increase of aerial array scale, the corresponding expense for sending measuring reference signals will also be doubled and redoubled.

In order to reduce transmission measuring reference signals, such as the expense of CSI-RS, a kind of two-stage channel status letter Cease (channel state information, CSI) measurement mechanism is used, wherein two-stage CSI measurement refers specifically to: the configuration of CSI-RS and CSI measurement are made of two-stage, one antenna port set of the CSI-RS resource respective antenna array in first order CSI-RS configuration, such as submatrix, UE obtain first order CSI measurement result based on the measurement to first order CSI-RS.Second level CSI-RS resource is determined according to the first order CSI measurement result.UE obtains second level CSI measurement result based on the measurement to second level CSI-RS resource.The total CSI measurement result of aerial array is obtained based on first order CSI measurement result and second level CSI measurement result.

When first order CSI measures corresponding submatrix difference, first order CSI measurement result is also different, such as in 8H8V, (8H8V represents 8 antenna ports of horizontal direction, 8 antenna ports of vertical direction) two-dimensional antenna configuration under, when the submatrix of first order CSI measurement is chosen for 4H2V (the antenna port vertical direction 2 of horizontal direction 4 antenna port) and 8H1V (the antenna port vertical direction 1 of horizontal direction 8 antenna port), due to the corresponding level of both submatrixs, vertical antenna port number is different, and dissemination channel feature horizontally and vertically is different, therefore the first order CSI measurement result obtained under two kinds of submatrixs is also different, and then the corresponding total CSI measurement result of aerial array is different.First order CSI measurement and its corresponding submatrix are cell specifically and are fixed and invariable in the prior art, and when UE is in different positions or UE movement bring changes in channel conditions, the flexibility ratio of above-mentioned CSI measurement is inadequate.

Summary of the invention

The embodiment of the invention provides method, the method for channel measurement, sending device and user equipmenies that a kind of reference signal is sent, can be improved the selection flexibility ratio of first order reference signal resource configuration and the flexibility ratio of channel measurement.

In a first aspect, providing a kind of method that reference signal is sent, comprising:

N number of first order reference signal resource configuration is sent to terminal device, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N is the integer greater than 1；

It configures according to each first order reference signal resource to the terminal device and sends the first reference signal；

Obtain the information of the first configuration in N number of first order reference signal resource configuration, wherein the information of first configuration is obtained according to the result of first order channel state information CSI measurement, and the first order CSI is measured as the CSI measurement carried out according to first reference signal.

The method that the reference signal of the embodiment of the present invention is sent, by sending multiple first order reference signal resource configurations to terminal device, it configures according to each first order reference signal resource to terminal device and sends reference signal, and obtain the first order reference signal resource configuration finally used in multiple first order reference signal resource configurations, changeless mode is configured relative to first order reference signal resource, improves the selection flexibility ratio of first order reference signal resource configuration.

With reference to first aspect, in the first possible implementation, the information for obtaining the first configuration in N number of first order reference signal resource configuration includes:

The first feedback information that the terminal device is sent is received,

Wherein, first feedback information includes the identification information of first configuration, or

First feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.

The possible implementation of with reference to first aspect the first, in the second possible implementation, N number of first order reference signal resource configure corresponding M CSI process,

First feedback information is that the result of the first order CSI measurement obtained according to the M CSI process determines that M is the positive integer less than or equal to N.

With reference to first aspect, in the third possible implementation, the information for obtaining the first configuration in N number of first order reference signal resource configuration includes:

Receive the result that each first order reference signal resource that the terminal device is sent configures corresponding first order CSI measurement；

Configure that corresponding first order CSI is measured according to each first order reference signal resource as a result, determining that each first order reference signal resource configures corresponding second level reference signal resource configuration；

Corresponding second level reference signal resource is configured according to each first order reference signal resource to configure to the terminal device the second reference signal of transmission；

The second feedback information that the terminal device is sent is received,

Wherein, second feedback information includes the identification information of first configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to described first Corresponding second level reference signal resource configuration is configured, or

Second feedback information include first configuration identification information and first configuration corresponding second level CSI measurement as a result, or

Second feedback information includes that the identification information of second configuration and described second configure that corresponding second level CSI is measured as a result, the second level CSI is measured as the CSI measurement carried out according to second reference signal.

The third possible implementation with reference to first aspect, in the fourth possible implementation, the each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration

Second feedback information is that the result of the second level CSI measurement obtained according to M CSI process determines that M is the positive integer less than or equal to N.

Second with reference to first aspect or four kind of possible implementation configure before the terminal device the first reference signal of transmission described according to each first order reference signal resource in a fifth possible implementation, the method also includes:

The notification message of the M CSI process is sent to the terminal device.

Any possible implementation with reference to first aspect or in the first to five kind of possible implementation of first aspect, in a sixth possible implementation, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.

Any possible implementation with reference to first aspect or in the first to six kind of possible implementation of first aspect, in the 7th kind of possible implementation, described configure according to each first order reference signal resource to the terminal device sends the first reference signal, comprising:

By time division way and/or frequency division manner, configures according to N number of first order reference signal resource to the terminal device and send first reference signal.

In some possible implementations, sending device can send N number of first order reference signal resource configuration to terminal device to aperiodic or long period.

In some possible implementations, sending device can send N number of first order reference signal resource to terminal device by high-level signaling and configure.

Second aspect provides a kind of method of channel measurement, comprising:

Receive N number of first order reference signal resource configuration that sending device is sent, wherein each first order reference signal resource in N number of first order reference signal resource configuration configures a corresponding antenna Port set configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N is the integer greater than 1；

The first reference signal that the sending device is sent according to each first order reference signal resource configuration is received according to each first order reference signal resource configuration；

First order channel state information CSI measurement is carried out according to first reference signal.

The method of the channel measurement of the embodiment of the present invention, the multiple first order reference signal resources configuration sent by receiving sending device, and first order CSI measurement is carried out for the configuration of each first order reference signal resource, it selection first order reference signal resource can be configured from the configuration of multiple first order reference signal resources, improve the flexibility ratio of channel measurement.

In conjunction with second aspect, in the first possible implementation, the method also includes:

The first feedback information is sent to the sending device,

Wherein, first feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

In conjunction with the first possible implementation of second aspect, in the second possible implementation, N number of first order reference signal resource configures corresponding M CSI process；

The method also includes:

The first order CSI measurement obtained according to the M CSI process as a result, determining first feedback information, M is the positive integer less than or equal to N.

In conjunction with second aspect, in the third possible implementation, the method also includes:

Each first order reference signal resource, which is sent, to the sending device configures that corresponding first order CSI is measured as a result, each first order reference signal resource, which configures the result that corresponding first order CSI is measured, determines that each first order reference signal resource configures corresponding second level reference signal resource configuration for the sending device；

The corresponding second level reference signal resource configuration reception sending device, which is configured, according to each first order reference signal resource configures the corresponding second level according to each first order reference signal resource The second reference signal that reference signal resource configuration is sent；

Second level CSI measurement is carried out according to second reference signal.

In conjunction with the third possible implementation of second aspect, in the fourth possible implementation, the method also includes:

The second feedback information is sent to the sending device,

Wherein, second feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to the corresponding second level reference signal resource configuration of first configuration, or

Second feedback information includes the identification information of second configuration and the result of the corresponding second level CSI measurement of second configuration.

In conjunction with the 4th kind of possible implementation of second aspect, in a fifth possible implementation, each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration；

The method also includes:

The second level CSI measurement obtained according to M CSI process as a result, determining second feedback information, M is the positive integer less than or equal to N.

In conjunction with the second of second aspect or five kind of possible implementation, in a sixth possible implementation, before first reference signal sent according to each first order reference signal resource configuration reception sending device according to each first order reference signal resource configuration, the method also includes:

Receive the notification message for the M CSI process that the sending device is sent.

In conjunction with any possible implementation in the first to six kind of possible implementation of second aspect or second aspect, in the 7th kind of possible implementation, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.

The third aspect provides a kind of sending device, the module of the method including executing first aspect.

Fourth aspect provides a kind of terminal device, the module of the method including executing second aspect.

5th aspect, provides a kind of sending device.The sending device includes processor, memory and leads to Believe interface.Processor is connect with memory and communication interface.For storing instruction, processor is for executing the instruction, and communication interface with other network elements for being communicated under the control of a processor for memory.The instruction makes the method for processor execution first aspect when being executed by processor.

6th aspect, provides a kind of terminal device.The user equipment includes processor, memory and communication interface.Processor is connect with memory and communication interface.For storing instruction, processor is for executing the instruction, and communication interface with other network elements for being communicated under the control of a processor for memory.The instruction makes the method for processor execution second aspect when being executed by processor.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, attached drawing needed in the embodiment of the present invention will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of the application scenarios of the embodiment of the present invention.

Fig. 2 is the schematic flow chart for the method that the reference signal of one embodiment of the invention is sent.

Fig. 3 a is the schematic diagram that reference signal is sent by time division way of one embodiment of the invention.

Fig. 3 b is the schematic diagram that reference signal is sent by frequency division manner of one embodiment of the invention.

Fig. 4 is the schematic flow chart of the method for the channel measurement of one embodiment of the invention.

Fig. 5 is the schematic block diagram of the sending device of invention one embodiment.

Fig. 6 is the schematic block diagram of the terminal device of invention one embodiment.

Fig. 7 is the structural schematic diagram for inventing the sending device of another embodiment.

Fig. 8 is the structural schematic diagram for inventing the terminal device of another embodiment.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention is described.

It should be noted that the content in various embodiments of the present invention can be combined with each other.

Fig. 1 is the schematic diagram of the application scenarios of the embodiment of the present invention.In Fig. 1, base station 101 and terminal device, such as terminal device 111, terminal device 112 and terminal device 113, it is communicated by MIMO technology.The antenna of base station 101 can be configured using two-dimensional antenna, and transmission is using three-dimensional wave beam forming.CSI measurement can be using the mechanism of multistage CSI measurement, the i.e. mechanism of two-stage or more CSI measurement.

In embodiments of the present invention, terminal device (terminal device) is properly termed as user equipment (User Equipment, UE), terminal (terminal), mobile station (Mobile Station, MS), mobile terminal (mobile terminal) etc., the terminal device can be through wireless access network (Radio Access Network, RAN it) is communicated with one or more core net, such as, terminal device can be mobile phone (or being " cellular phone "), computer etc. with mobile terminal, such as, terminal device can also be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they and wireless access network are handed over Change voice and/or data.

In embodiments of the present invention, sending device can be base station, be also possible to other equipment for sending data to terminal device, e.g., small station (Small Cell), relay station etc., the embodiment of the present invention does not limit.Base station can be the evolved base station (Evolved Node B, eNB or e-NodeB) in LTE or LTE-A, be also possible to the base station in other communication systems, the embodiment of the present invention does not limit.But for convenience of description, following embodiments will be illustrated by taking base station eNB and terminal device as an example.

It should be understood that in embodiments of the present invention, term " antenna port set " is referred to as " antenna port array ", " aerial array " or " submatrix " in some scenes, and the embodiment of the present invention does not limit.

Multistage CSI is measured, i.e. in two-stage or more CSI measurement, first order CSI measures a corresponding antenna port set, such as a submatrix in sending device antenna port array.By taking two-stage CSI measurement as an example, terminal device is based on first order CSI measurement and obtains first order CSI measurement result.Base station obtains second level CSI according to first order CSI measurement result and measures corresponding antenna port set configuration.Terminal device is based on second level CSI measurement and obtains second level CSI measurement result.The corresponding CSI measurement result of entire aerial array of sending device can be obtained based on first order CSI measurement result and second level CSI measurement result.

Such as, when main aerial port number is 64, it is assumed that corresponding antenna port array structure is that (8H8V represents 8 antenna ports of horizontal direction to 8H8V, 8 antenna ports of vertical direction), two-stage CSI measurement method can be used at this time, wherein, the antenna port number that the antenna port set of first order reference signal resource configuration is included can be 8.Here the corresponding antenna port set in 8 ports in first order reference signal resource configuration is configured with 8H1V (the antenna port vertical direction 1 of horizontal direction 8 antenna port), 4H2V (the antenna port vertical direction 2 of horizontal direction 4 antenna port), 2H4V (the antenna port vertical direction 4 of horizontal direction 2 antenna port), 1H8V (the antenna port vertical direction 8 of horizontal direction 1 antenna port) etc. are a variety of.

When sending device has more main aerial port numbers, as main aerial port number be 512 when, the even more multistage CSI measurement method of three-level is used at this time, wherein, the result that the reference signal resource configuration of rear stage CSI measurement can be measured according to previous stage CSI determines that every grade of CSI measures corresponding antenna port Number can be the arbitrary value less than or equal to main aerial port number, for example, the typical antenna port numbers such as 1,2,4,8 that can be supported for current LTE system, or any other antenna port numbers such as 3,5,6,7,9,10.In the CSI measurement method of at least two-stage, the configuration of first order reference signal resource and corresponding CSI measurement result directly affect subsequent second stage, the third level even corresponding CSI measurement result of entire aerial array.

It should be understood that in embodiments of the present invention, in contrast " first order " and " second level " is, that is, " first order " indicates previous stage, and " second level " indicates rear stage, should not be limited to be the absolute first order and the second level in multistage.For example, it can also be the second level and the third level in three-level respectively that " first order " and " second level " in embodiments of the present invention, which can be the first order and the second level in the three-level respectively, when there is three-level measurement.

Different terminal equipment in cell can bring the variation of channel characteristics due to difference or the terminal device movement in locating geographical location.Such as, the antenna of sending device is in 10 meters of height, terminal device is other than it can be located outside on ground, in its building that can also be evenly distributed on 1-8 layers at random, terminal device in high building due to it while having level concurrently, the position resolution of vertical bidimensional, therefore this antenna port set form of 4H2V or 2H4V preferably can be used in its first order reference signal resource configuration, and for locating outdoor terminals equipment on the ground, since the height of its vertical dimension is fixed, therefore this antenna port set form of 8H1V preferably can be used in its first order reference signal resource configuration.

Fig. 2 shows the schematic flow charts for the method 100 that reference signal according to an embodiment of the present invention is sent.This method 100 is executed by sending device (such as base station).As shown in Fig. 2, this method 100 includes:

S110, N number of first order reference signal resource configuration is sent to terminal device, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N be greater than 1 integer；

S120 is configured to the terminal device according to each first order reference signal resource and is sent the first reference signal；

S130 obtains the information of the first configuration in N number of first order reference signal resource configuration, Described in first configuration information be according to the first order CSI measurement result obtain, the first order CSI be measured as according to first reference signal carry out CSI measurement.

In embodiments of the present invention, the corresponding antenna port set configuration of first order reference signal resource configuration.Antenna port set configuration may include the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that the second dimension antenna port number and antenna port set are included.Optionally, the first dimension and the second dimension can be respectively horizontal dimensions and vertical dimensions.For example, antenna port set is specifically as follows submatrix, antenna port set configuration can specifically use the form of xHyV.

In embodiments of the present invention, reference signal resource configuration includes running time-frequency resource location information.Specifically, the running time-frequency resource location information that the configuration of first order reference signal resource includes configures the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set is included for the first order reference signal resource, wherein, the corresponding running time-frequency resource position of antenna port refers to that the antenna port is used for transmission the position of the running time-frequency resource of reference signal.Similarly, the running time-frequency resource location information that second level reference signal resource configuration hereinafter includes configures the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set is included for the second level reference signal resource, wherein, which configures corresponding antenna port set specifically can configure the result determination of corresponding antenna port set and first order CSI measurement according to first order reference signal resource.

Sending device configures multiple first order reference signal resources, the configuration of multiple first order reference signal resources is sent to terminal device, triggering terminal equipment carries out first order CSI measurement for multiple first reference signals.Sending device obtains the information of the first configuration in N number of first order reference signal resource configuration according to the result that first order CSI is measured.In this way, the configuration of first order reference signal resource is no longer that cell is specific, but can neatly select, so as to improve the flexibility ratio of channel measurement.

Therefore, the method that the reference signal of the embodiment of the present invention is sent, by sending multiple first order reference signal resource configurations to terminal device, it configures according to each first order reference signal resource to terminal device and sends reference signal, and obtain the first order reference signal resource configuration finally used in multiple first order reference signal resource configurations, changeless mode is configured relative to first order reference signal resource, improves the selection flexibility ratio of first order reference signal resource configuration.

In embodiments of the present invention, under same aerial array scale the first order reference signal resource configuration antenna port set antenna port number can there are many, as 64 antenna ports array scale under the first order reference signal resource configuration antenna port set antenna port number can be 1,2,4,8,16 etc., optionally it is also possible to 3,5,6,7, any other values such as 9,10.

In embodiments of the present invention, it indicates that antenna port set configures with xHyV, indicates x antenna port of horizontal direction, y antenna port of vertical direction.By taking the antenna scale of 64 antenna ports in total as an example, it includes 4H2V, 2H4V, 8H1V that first order reference signal resource, which configures corresponding antenna port set configuration, and 1H8V etc. is a variety of, it can has multiple first order reference signal resources to configure.

In S110, sending device sends N number of first order reference signal resource configuration to terminal device.

It is measured by sending N number of first order reference signal resource configuration triggering terminal equipment for multiple first reference signals.

By taking the antenna scale of 64 antenna ports in total as an example, there can be 4 first order reference signal resource configurations, corresponding antenna port set configuration can be 4H2V, 2H4V, 8H1V and 1H8V.

Optionally, sending device can send N number of first order reference signal resource configuration to terminal device to aperiodic or long period.That is, sending device can aperiodic or long period triggering terminal equipment measure for multiple first reference signals.For example, sending device can be triggered according to the long period of setting for long period mode；For aperiodic mode, sending device, which can according to need, to be triggered.Correspondingly, sending device is aperiodic or long period send N number of first order reference signal resource to terminal device and configure corresponding N number of first reference signal.

Optionally, sending device can send N number of first order reference signal resource to terminal device by high-level signaling and configure.That is, sending device can be measured by high-level signaling triggering terminal equipment for multiple first reference signals.

In S120, sending device configures to the terminal device according to each first order reference signal resource and sends the first reference signal.

Sending device, which according to N number of first order reference signal resource each of configures first order reference signal resource and configures to terminal device, sends the first reference signal.Terminal device carries out first order CSI measurement according to first reference signal.

For example, the antenna port set that sending device passes through 4H2V, 2H4V, 8H1V and 1H8V respectively, which configures corresponding antenna port, sends the first reference signal.

Optionally, sending device can configure to terminal device according to N number of first order reference signal resource by time division way and/or frequency division manner and send first reference signal.

Fig. 3 a is the schematic diagram that reference signal is sent by time division way.In Fig. 3 a and following Fig. 3 b, antenna port set is specially submatrix, the antenna ports of different submatrixs can part it is identical, can also be entirely different.

As shown in Figure 3a, when being sent by time division way, different emission times is using different the Level reference signal resource distribution is sent.For example, sending reference signal by the corresponding antenna port of 4H2V at the first moment, reference signal etc. is sent by the corresponding antenna port of 2H4V at the second moment.In this manner, the frequency domain position of different first order reference signal resource configurations can be identical.

Fig. 3 b is the schematic diagram that reference signal is sent by frequency division manner.

As shown in Figure 3b, when being sent by frequency division manner, multiple first reference signals are sent to terminal device using the frequency division manner of comb teeth-shaped in whole system bandwidth.Such as when first order reference signal resource configured number is m, whole system bandwidth is that granularity intersection is equally spaced divided into m parts with 1 resource block (Resource Block, RB), such as jth part (j=1,2, ..., m) RB in the corresponding whole system bandwidth of resource is distributed as m*i+j, i=0,1, ..., n/m-1, wherein n is the corresponding RB sum of whole system bandwidth.In this manner, the time-domain position of different first order reference signal resource configurations can be identical.

In S130, sending device obtains the information of the first configuration in N number of first order reference signal resource configuration.

In embodiments of the present invention, sending device can be the information that the first configuration is only obtained according to first order CSI measurement, is also possible to measure the information for obtaining the first configuration according to multistage CSI, be illustrated separately below.

In an embodiment of the invention, optionally, obtaining the information that first in N number of first order reference signal resource configuration configures includes:

The first feedback information that the terminal device is sent is received,

Specifically, determining the first configuration after terminal device carries out first order CSI measurement according to multiple first reference signals respectively.Optionally, which can be a configuration in the configuration of N number of first order reference signal resource, for example, it may be allocation optimum, which corresponds to the result of optimal first order CSI measurement.The identification information of first configuration is sent to sending device by terminal device, alternatively, the identification information of the first configuration and the corresponding first order CSI of first configuration result measured are sent to sending device by terminal device.That is, terminal device can only send the identification information of the first configuration to sending device, the result that the identification information and the corresponding first order CSI of first configuration that the first configuration can also be sent to sending device measure.In the case where sending the result of first order CSI measurement, sending device can generate the configuration of second level reference signal resource based on the result.

Optionally, terminal device can be according to the knot for the first order CSI measurement that M CSI process obtains Fruit determines the first feedback information, i.e., the identification information of described first configuration, or the result that the identification information and the corresponding first order CSI of first configuration of first configuration measure, M is the positive integer less than or equal to N, wherein N number of first order reference signal resource configures corresponding M CSI process.That is, terminal device can configure corresponding M CSI process according to N number of first order reference signal resource determines first configuration.

Optionally, sending device can first send the notification message of M CSI process to terminal device.After terminal device receives the notification message, the measurement of M CSI process is carried out, determines first configuration.

Such as, sending device can be when triggering terminal equipment be measured for N number of first reference signal, report associated CSI number of processes M for CSI result of terminal equipment configuration (M is the positive integer less than or equal to N), it is that report associated CSI number of processes be 1 to CSI result of terminal equipment configuration when without triggering.

It is included at least in the notification message of M CSI process: the reference signal resource configuration of M process context, when M is less than N, at least two reference signal resources configurations of at least one CSI process context.I.e. at least one at least two reference signal of CSI process context measurement as a result, for example, optimal value or average value of two results etc. can be taken.M CSI process corresponds to M CSI measurement result.Terminal device is based on the M CSI measurement result and is reported.

In another embodiment, optionally, obtaining the information that first in N number of first order reference signal resource configuration configures includes:

The second feedback information that the terminal device is sent is received,

Specifically, the result that each first order reference signal resource configures corresponding first order CSI measurement is sent to sending device after terminal device carries out first order CSI measurement according to multiple first reference signals respectively.First order CSI measurement result may include an optimal pre-coding matrix, and the form that reports of pre-coding matrix can be pre-coding matrix index.

In various embodiments of the invention, optionally, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.

Optionally, the result of first order CSI measurement may include at least one of pre-coding matrix index, order instruction, channel quality instruction and the instruction of pre-coding matrix type.

Optionally, every kind of antenna port set configures a corresponding code book collection, such as the corresponding code book collection 1 of 4H2V, 2H4V correspond to another code book collection 2.Terminal device can configure according to antenna port set and carry out reporting for the antenna port set selection of optimal code book accordingly and result.

After sending device receives the result that each first order reference signal resource configures corresponding first order CSI measurement, configure that corresponding first order CSI is measured according to each first order reference signal resource as a result, determining that each first order reference signal resource configures corresponding second level reference signal resource configuration.By taking the antenna scale of 64 antenna ports in total as an example, wherein, it includes 4H2V that first order reference signal resource, which configures corresponding antenna port set configuration, 2H4V, 8H1V, 1H8V etc. are a variety of, it is assumed that it is 1 that order (rank) is constant in the CSI measurement result based on the configuration of first order reference signal resource, it is several configured with 2H4V, 4H2V, 1H8V and 8H1V etc. that second level reference signal resource configures corresponding antenna port set.When order is greater than 1 in the CSI measurement result of first order reference signal resource configuration, the antenna port number that second level reference signal resource configures in corresponding antenna port set configuration increases with the increase of order, such as when order is equal to 2, the antenna port number that second level reference signal resource configures in corresponding antenna port set configuration is 16, specific antenna port set configuration optionally has 4H4V, 8H2V, 2H8V etc. are several.

Sending device configures to terminal device according to second level reference signal resource and sends the second reference signal.Terminal device carries out second level CSI measurement according to second reference signal.After terminal device carries out second level CSI measurement according to the second reference signal, the first configuration or corresponding second configuration of the first configuration are determined.The mark of identification information or the first configuration that terminal device configures the identification information of the first configuration or second Know information and the first configuration corresponding second level CSI measurement as a result, or the identification information of the second configuration and the result of the corresponding second level CSI measurement of the second configuration be sent to sending device.

Optionally, terminal device can be according to the result for the second level CSI measurement that M CSI process obtains, determine the second feedback information, the identification information of i.e. described first configuration, or the identification information of second configuration, or the result that the identification information and the corresponding second level CSI of first configuration of first configuration measure, or the result that the identification information and the corresponding second level CSI of second configuration of second configuration measure, M is the positive integer less than or equal to N, wherein, each first order reference signal resource configuration and each first order reference signal resource configure the corresponding corresponding same CSI process of second level reference signal resource configuration.That is, terminal device can be configured according to N number of first order reference signal resource and corresponding second level reference signal resource configures corresponding M CSI process and obtains second configuration or first configuration.

Optionally, sending device can first send the notification message of M CSI process to terminal device.After terminal device receives the notification message, the measurement of M CSI process is carried out, determines above-mentioned configuration.

Such as, sending device can be when triggering terminal equipment be measured for the configuration of multiple first order reference signal resources, associated CSI number of processes M is reported for CSI measurement result of terminal equipment configuration, when without triggering, associated CSI number of processes 1 is reported for CSI measurement result of terminal equipment configuration.

It is included at least in the notification message of M CSI process: the information of the reference signal resource configuration of M process context, when M is less than N, the configuration of at least two first order reference signal resources of at least one CSI process context or the configuration of at least two second level reference signal resources.M CSI process corresponds to M CSI measurement result.Terminal device is based on the M CSI measurement result and is reported.

In embodiments of the present invention, optionally, terminal device can pass through Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) or Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) sends the result that CSI is measured.

The embodiment of the present invention may be implemented multiple first order reference signal resources and configure once reporting for corresponding CSI measurement result, so as to save the transmission power of terminal device, while also reduce the interference to adjacent area.

Optionally, the method that another kind reduces reference signal resource expense, which can be, carries out precoding (being equivalent to carry out the port of reference signal resource virtualization and dimensionality reduction) to reference signal, terminal device carries out channel quality measurement based on the reference signal after precoding, the dimensionality reduction of reference signal antenna port can be realized by carrying out precoding to reference signal, if the reference signal antenna port number before precoding is 16, by right The reference signal resource of the relatively miniature antenna port after multiple precodings (such as 4 ports or 8 ports) can be obtained in the virtualization that the reference signal of 16 antenna ports carries out different pre-coding matrixes.

Optionally, any other forms outside the form or DFT matrix of discrete Fourier transform (Discrete Fourier Transform, DFT) matrix be can be to the precoding of reference signal.The resource of reference signal after different precodings corresponds to different pre-coding matrixes.Based on the measurement to the reference signal after multiple precodings, the resource of the reference signal after the precoding that terminal device selects at least one optimal is simultaneously reported to base station.Wherein the number of the resource of the reference signal after optimal precoding passes through wireless heterogeneous networks (Radio Resource Control by base station, RRC) dedicated signaling or Downlink Control Information (Downlink Control Information, DCI) are signaled to terminal device.

Optionally, the number of the resource of the reference signal after the optimal precoding can send jointly to terminal device with scheduling authorization (grant) information of terminal device.Reference signal resource after precodings all in cell can also be divided into predefined multiple resource clusters by base station, each resource cluster is made of the reference signal resource after multiple precodings, such as assume that the reference signal resource number in cell after all precodings is N, N number of resource is divided into predefined M resource cluster, optionally, there can be one or more resources of overlapping between two resource clusters of arbitrary neighborhood.Terminal device selects optimal one or more resource clusters based on the channel quality measurement to M resource cluster, and the identification information of the selected optimal resource cluster is reported to base station with the first pre-coding matrix index, base station is the reference signal resource after terminal equipment configuration terminal device specifically multiple precodings based on the resource in the optimal resource cluster that terminal device selects and reports, terminal device chooses optimal one or more reference signal resources based on the measurement to the reference signal resource after the specific precoding of multiple terminal devices again, and the identification information of the selected resource is reported to base station with the second pre-coding matrix index.

Wherein, the first pre-coding matrix index is the pre-coded index number that long period reports, and can be such as the call number of the W1 in this structure of dicode.And the second pre-coding matrix index is the pre-coded index number that short cycle reports, and can be such as the call number of the W2 in this structure of dicode.The configuration of reference signal resource cluster after multiple precodings is long period or aperiodic, and the configuration of the reference signal resource after multiple precodings in optimal resource cluster is short-period.Terminal device specifically the resource identification information after optimal precoding by two-stage resource selection and above offer determination, the resource identification information of first order selection with a macrocyclic CSI information reporting to base station, and the resource identification information of second level selection with a short-period CSI information reporting to base station.

It should be understood that the specific example in the embodiment of the present invention is intended merely to that those skilled in the art is helped to more fully understand the embodiment of the present invention, the range for the embodiment that is not intended to limit the present invention.

The method that reference signal according to an embodiment of the present invention is sent, the method that channel measurement according to an embodiment of the present invention will be described from the angle of terminal device below is described in detail from the angle of sending device above.

Fig. 4 shows the schematic flow chart of the method 400 of channel measurement according to an embodiment of the present invention.This method 400 is executed by terminal device.As shown in figure 4, this method 400 includes:

S410, receive N number of first order reference signal resource configuration that sending device is sent, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N is Integer greater than 1；

S420 receives the first reference signal that the sending device is sent according to each first order reference signal resource configuration according to each first order reference signal resource configuration；

S430 carries out first order CSI measurement according to first reference signal.

It should be understood that, in embodiments of the present invention, interaction and correlation properties, function between the sending device and terminal device of the description of sending device side etc. are corresponding to the description of terminal equipment side, the corresponding description for the method 100 that the reference signal that the specific descriptions of the method 400 of the channel measurement of the embodiment of the present invention may refer to the aforementioned embodiment of the present invention is sent, for sake of simplicity, details are not described herein.

It should be understood that, in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, and the execution sequence of each process should be determined by its function and internal logic, and the implementation process of the embodiments of the invention shall not be constituted with any limitation.

Above-detailed reference signal according to an embodiment of the present invention is sent and the method for channel measurement, is described below sending device according to an embodiment of the present invention and terminal device.

Fig. 5 shows the schematic block diagram of sending device 500 according to an embodiment of the present invention.The sending device 500 can be base station.As shown in figure 5, the sending device 500 includes:

Sending module 510, for sending N number of first order reference signal resource configuration to terminal device, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource , N is the integer greater than 1；And it configures according to each first order reference signal resource to the terminal device and sends the first reference signal；

Processing module 520, for obtaining the information of the first configuration in N number of first order reference signal resource configuration, wherein the information of first configuration is obtained according to the result of first order channel state information CSI measurement, and the first order CSI is measured as the CSI measurement carried out according to first reference signal.

The sending device of the embodiment of the present invention, by sending multiple first order reference signal resource configurations to terminal device, and it configures according to each first order reference signal resource to terminal device and sends reference signal, and obtain the first order reference signal resource configuration finally used in multiple first order reference signal resource configurations, changeless mode is configured relative to first order reference signal resource, improves the selection flexibility ratio of first order reference signal resource configuration.

In embodiments of the present invention, optionally, the sending device 500 further includes receiving module 530.

The processing module 520 is specifically used for receiving the first feedback information that the terminal device is sent by the receiving module 530, wherein, first feedback information includes the identification information of first configuration or first feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.

In embodiments of the present invention, optionally, N number of first order reference signal resource configures corresponding M CSI process,

In embodiments of the present invention, optionally, the processing module 520 is specifically used for:

The result that each first order reference signal resource that the terminal device is sent configures corresponding first order CSI measurement is received by the receiving module 530；

According to each first order reference signal resource configure corresponding first order CSI measurement as a result, Determine that each first order reference signal resource configures corresponding second level reference signal resource configuration；

Corresponding second level reference signal resource configuration is configured according to each first order reference signal resource, and the second reference signal is sent to the terminal device by the sending module 510；

The second feedback information that the terminal device is sent is received by the receiving module 530,

In embodiments of the present invention, optionally, each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration,

In embodiments of the present invention, optionally, the sending module 510 is also used to send the notification message of the M CSI process to the terminal device.

In embodiments of the present invention, optionally, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.

In embodiments of the present invention, optionally, the sending module 510 is specifically used for, and by time division way and/or frequency division manner, configures according to N number of first order reference signal resource to the terminal device and sends first reference signal.

In embodiments of the present invention, optionally, which specifically for aperiodic or long period sends the information that N number of first order reference signal resource configures to the terminal device.

The sending device 500 of the embodiment of the present invention can correspond to the sending device in embodiment of the present invention method, and above and other operation and/or function of the modules in sending device 500 is respectively in order to realize the corresponding process of aforementioned each method, for sake of simplicity, details are not described herein.

In embodiments of the present invention, above-mentioned sending module 510, processing module 520 and receiving module 530 It can be realized respectively by transmitter, processor and receiver.

Fig. 6 shows the schematic block diagram of terminal device 600 according to an embodiment of the present invention.As shown in fig. 6, the terminal device 600 includes:

Receiving module 610, for receiving the information of N number of first order reference signal resource configuration of sending device transmission, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information configures the corresponding time-frequency of antenna port that corresponding antenna port set includes by each first order reference signal resource and provides Source location information, N are the integer greater than 1；And the first reference signal that the sending device is sent according to each first order reference signal resource configuration is received according to each first order reference signal resource configuration；

Processing module 620, for carrying out first order channel state information CSI measurement according to first reference signal.

The terminal device of the embodiment of the present invention, the multiple first order reference signal resources configuration sent by receiving sending device, and first order CSI measurement is carried out for the configuration of each first order reference signal resource, it selection first order reference signal resource can be configured from the configuration of multiple first order reference signal resources, improve the flexibility ratio of channel measurement.

In embodiments of the present invention, optionally, the terminal device further include:

Sending module 630, for sending the first feedback information to the sending device,

In embodiments of the present invention, optionally, N number of first order reference signal resource configures corresponding M CSI process；

The processing module 620 is also used to, the first order CSI measurement obtained according to the M CSI process as a result, determining first feedback information, M is the positive integer less than or equal to N.

In embodiments of the present invention, optionally, the terminal device 600 further include:

Sending module 630, for sending each first order reference signal resource to the sending device Configure that corresponding first order CSI is measured as a result, the result that each first order reference signal resource configures corresponding first order CSI measurement determines that each first order reference signal resource configures corresponding second level reference signal resource configuration for the sending device；

The receiving module 610 is also used to configure corresponding second level reference signal resource configuration according to each first order reference signal resource and receives the second reference signal that the sending device configures corresponding second level reference signal resource configuration transmission according to each first order reference signal resource；

The processing module 620 is also used to carry out second level CSI measurement according to second reference signal.

In embodiments of the present invention, optionally, the sending module 630 is also used to, and Xiang Suoshu sending device sends the second feedback information,

In embodiments of the present invention, optionally, each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration；

The processing module 620 is also used to, the second level CSI measurement obtained according to M CSI process as a result, determining second feedback information, M is the positive integer less than or equal to N.

In embodiments of the present invention, optionally, which is also used to receive the notification message of the M CSI process of sending device transmission.

The terminal device 600 of the embodiment of the present invention can correspond to the terminal device in embodiment of the present invention method, and above and other operation and/or function of the modules in terminal device 600 is respectively in order to realize the corresponding process of aforementioned each method, for sake of simplicity, details are not described herein.

In embodiments of the present invention, above-mentioned receiving module 610, processing module 620 and sending module 630 It can be realized respectively by transmitter, processor and receiver.

Fig. 7 shows the structure of the sending device of another embodiment of the present invention offer, including at least one processor 702 (such as CPU), at least one network interface 705 or other communication interfaces and memory 706.Processor 702 is for executing the executable module stored in memory 706, such as computer program.Memory 706 may include high-speed random access memory (RAM:Random Access Memory), it is also possible to further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.The communication connection between at least one other network element is realized by least one network interface 705 (can be wired or wireless).

In some embodiments, memory 706 stores program 7061, and processor 702 executes program 7061, the method 100 that the reference signal for executing the aforementioned embodiment of the present invention is sent.

Fig. 8 shows the structure of the terminal device of another embodiment of the present invention offer, including at least one processor 802 (such as CPU), at least one network interface 805 or other communication interfaces and memory 806.Processor 802 is for executing the executable module stored in memory 806, such as computer program.Memory 806 may include high-speed random access memory (RAM:Random Access Memory), it is also possible to further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.The communication connection between at least one other network element is realized by least one network interface 805 (can be wired or wireless).

In some embodiments, memory 806 stores program 8061, and processor 802 executes program 8061, the method 400 of the channel measurement for executing the aforementioned embodiment of the present invention.

It should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation for describing affiliated partner, indicate may exist three kinds of relationships.For example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

Those of ordinary skill in the art may be aware that, unit and algorithm steps described in conjunction with the examples disclosed in the embodiments of the present disclosure, it can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the interchangeability of hardware and software, each exemplary composition and step are generally described according to function in the above description.These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, it is above-mentioned System, the specific work process of device and unit of description, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit, be also possible to electricity, the connection of mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, and component shown as a unit may or may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can select some or all of unit therein according to the actual needs to realize the purpose of the embodiment of the present invention.

In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each unit and physically exists alone, is also possible to two or more units and is integrated in one unit.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product, can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention substantially the part that contributes to existing technology in other words, or all or part of the technical solution can be embodied in the form of software products, the computer software product is stored in a storage medium, it uses including some instructions so that a computer equipment (can be personal computer, server or the network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic or disk.

It is described above; only a specific embodiment of the invention; but scope of protection of the present invention is not limited thereto; anyone skilled in the art is in the technical scope disclosed by the present invention; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

A kind of method that reference signal is sent characterized by comprising

N number of first order reference signal resource configuration is sent to terminal device, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N is the integer greater than 1；

It configures according to each first order reference signal resource to the terminal device and sends the first reference signal；

Obtain the information of the first configuration in N number of first order reference signal resource configuration, wherein, the information of first configuration is obtained according to the result of first order channel state information CSI measurement, and the first order CSI is measured as the CSI measurement carried out according to first reference signal.
The method according to claim 1, wherein the information for obtaining the first configuration in N number of first order reference signal resource configuration includes:

The first feedback information that the terminal device is sent is received,

Wherein, first feedback information includes the identification information of first configuration, or

First feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.
According to the method described in claim 2, it is characterized in that, the N number of first order reference signal resource configures corresponding M CSI process,

First feedback information is that the result of the first order CSI measurement obtained according to the M CSI process determines that M is the positive integer less than or equal to N.
The method according to claim 1, wherein the information for obtaining the first configuration in N number of first order reference signal resource configuration includes:

Receive the result that each first order reference signal resource that the terminal device is sent configures corresponding first order CSI measurement；

Configure that corresponding first order CSI is measured according to each first order reference signal resource as a result, determining that each first order reference signal resource configures corresponding second level reference signal resource configuration；

Corresponding second level reference signal resource is configured according to each first order reference signal resource to configure to the terminal device the second reference signal of transmission；

The second feedback information that the terminal device is sent is received,

Wherein, second feedback information includes the identification information of first configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to the corresponding second level reference signal resource configuration of first configuration, or

Second feedback information include first configuration identification information and first configuration corresponding second level CSI measurement as a result, or

Second feedback information includes that the identification information of second configuration and described second configure that corresponding second level CSI is measured as a result, the second level CSI is measured as the CSI measurement carried out according to second reference signal.
According to the method described in claim 4, it is characterized in that, each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration,

Second feedback information is that the result of the second level CSI measurement obtained according to M CSI process determines that M is the positive integer less than or equal to N.
The method according to claim 3 or 5, which is characterized in that it is configured before the terminal device the first reference signal of transmission described according to each first order reference signal resource, the method also includes:

The notification message of the M CSI process is sent to the terminal device.
Method according to any one of claim 1 to 6, it is characterized in that, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.
Method according to any one of claim 1 to 7, which is characterized in that described configure according to each first order reference signal resource to the terminal device sends the first reference signal, comprising:

By time division way and/or frequency division manner, configures according to N number of first order reference signal resource to the terminal device and send first reference signal.
A kind of method of channel measurement characterized by comprising

Receive N number of first order reference signal resource configuration that sending device is sent, wherein described N number of The corresponding antenna port set configuration of each first order reference signal resource configuration in the configuration of first order reference signal resource, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is configured the corresponding running time-frequency resource location information of antenna port that corresponding antenna port set includes by each first order reference signal resource, N is the integer greater than 1；

The first reference signal that the sending device is sent according to each first order reference signal resource configuration is received according to each first order reference signal resource configuration；

First order channel state information CSI measurement is carried out according to first reference signal.
According to the method described in claim 9, it is characterized in that, the method also includes:

The first feedback information is sent to the sending device,

Wherein, first feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

First feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.
According to the method described in claim 10, it is characterized in that, N number of first order reference signal resource configures corresponding M CSI process；

The method also includes:

The first order CSI measurement obtained according to the M CSI process as a result, determining first feedback information, M is the positive integer less than or equal to N.
According to the method described in claim 9, it is characterized in that, the method also includes:

Each first order reference signal resource, which is sent, to the sending device configures that corresponding first order CSI is measured as a result, each first order reference signal resource, which configures the result that corresponding first order CSI is measured, determines that each first order reference signal resource configures corresponding second level reference signal resource configuration for the sending device；

The corresponding second level reference signal resource configuration reception sending device, which is configured, according to each first order reference signal resource configures the second reference signal that corresponding second level reference signal resource configuration is sent according to each first order reference signal resource；

Second level CSI measurement is carried out according to second reference signal.
According to the method for claim 12, which is characterized in that the method also includes:

The second feedback information is sent to the sending device,

Wherein, second feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to the corresponding second level reference signal resource configuration of first configuration, or

Second feedback information include first configuration identification information and first configuration corresponding second level CSI measurement as a result, or

Second feedback information includes the identification information of second configuration and the result of the corresponding second level CSI measurement of second configuration.
According to the method for claim 13, which is characterized in that each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration；

The method also includes:

The second level CSI measurement obtained according to M CSI process as a result, determining second feedback information, M is the positive integer less than or equal to N.
Method described in 1 or 14 according to claim 1, it is characterized in that, before first reference signal sent according to each first order reference signal resource configuration reception sending device according to each first order reference signal resource configuration, the method also includes:

Receive the notification message for the M CSI process that the sending device is sent.
Method according to any one of claims 9 to 15, it is characterized in that, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.
A kind of sending device characterized by comprising

Transmitter, for sending N number of first order reference signal resource configuration to terminal device, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information is that each first order reference signal resource configures corresponding day The corresponding running time-frequency resource location information of the antenna port that line end mouth set is included, N are the integer greater than 1；And it configures according to each first order reference signal resource to the terminal device and sends the first reference signal；

Processor, for obtaining the information of the first configuration in N number of first order reference signal resource configuration, wherein the information of first configuration is obtained according to the result of first order channel state information CSI measurement, and the first order CSI is measured as the CSI measurement carried out according to first reference signal.
Sending device according to claim 17, which is characterized in that the sending device further includes receiver；

The processor is specifically used for receiving the first feedback information that the terminal device is sent by the receiver, wherein, first feedback information includes the identification information of first configuration or first feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.
Sending device according to claim 18, which is characterized in that N number of first order reference signal resource configures corresponding M CSI process,

First feedback information is that the result of the first order CSI measurement obtained according to the M CSI process determines that M is the positive integer less than or equal to N.
Sending device according to claim 17, which is characterized in that the sending device further includes receiver；

The processor is specifically used for:

The result that each first order reference signal resource that the terminal device is sent configures corresponding first order CSI measurement is received by the receiver；

Configure that corresponding first order CSI is measured according to each first order reference signal resource as a result, determining that each first order reference signal resource configures corresponding second level reference signal resource configuration；

Corresponding second level reference signal resource configuration is configured according to each first order reference signal resource, and the second reference signal is sent to the terminal device by the transmitter；

The second feedback information that the terminal device is sent is received by the receiver,

Wherein, second feedback information includes the identification information of first configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to the corresponding second level reference signal resource configuration of first configuration, or

Second feedback information include first configuration identification information and first configuration corresponding second level CSI measurement as a result, or

Second feedback information includes that the identification information of second configuration and described second configure that corresponding second level CSI is measured as a result, the second level CSI is measured as the CSI measurement carried out according to second reference signal.
Sending device according to claim 20, which is characterized in that each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration,

Second feedback information is that the result of the second level CSI measurement obtained according to M CSI process determines that M is the positive integer less than or equal to N.
Sending device described in 9 or 21 according to claim 1, which is characterized in that the transmitter is also used to send the notification message of the M CSI process to the terminal device.
Sending device described in any one of 7 to 22 according to claim 1, it is characterized in that, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.
Sending device described in any one of 7 to 23 according to claim 1, it is characterized in that, the transmitter is specifically used for, and by time division way and/or frequency division manner, configures according to N number of first order reference signal resource to the terminal device and sends first reference signal.
A kind of terminal device characterized by comprising

Receiver, for receiving the information of N number of first order reference signal resource configuration of sending device transmission, wherein, the corresponding antenna port set configuration of each first order reference signal resource configuration in N number of first order reference signal resource configuration, any two first order reference signal resource configures corresponding antenna port set configuration and is different, the configuration of any one antenna port set includes the corresponding first dimension antenna port number of antenna port set, at least two in antenna port number that second dimension antenna port number and the antenna port set are included, each first order reference signal resource configuration includes running time-frequency resource location information, the running time-frequency resource location information, which configures the corresponding running time-frequency resource position of antenna port that corresponding antenna port set includes by each first order reference signal resource, to be believed Breath, N are the integer greater than 1；And the first reference signal that the sending device is sent according to each first order reference signal resource configuration is received according to each first order reference signal resource configuration；

Processor, for carrying out first order channel state information CSI measurement according to first reference signal.
Terminal device according to claim 25, which is characterized in that the terminal device is also Include:

Transmitter, for sending the first feedback information to the sending device,

Wherein, first feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

First feedback information includes the identification information of first configuration and the result of the corresponding first order CSI measurement of first configuration.
Terminal device according to claim 26, which is characterized in that N number of first order reference signal resource configures corresponding M CSI process；

The processor is also used to, the first order CSI measurement obtained according to the M CSI process as a result, determining first feedback information, M is the positive integer less than or equal to N.
Terminal device according to claim 25, which is characterized in that the terminal device further include:

Transmitter, configure that corresponding first order CSI is measured as a result, each first order reference signal resource, which configures the result that corresponding first order CSI is measured, determines that each first order reference signal resource configures corresponding second level reference signal resource configuration for the sending device for sending each first order reference signal resource to the sending device；

The receiver is also used to configure corresponding second level reference signal resource configuration according to each first order reference signal resource and receives the second reference signal that the sending device configures corresponding second level reference signal resource configuration transmission according to each first order reference signal resource；

The processor is also used to carry out second level CSI measurement according to second reference signal.
Terminal device according to claim 28, which is characterized in that the transmitter is also used to,

The second feedback information is sent to the sending device,

Wherein, second feedback information includes the identification information of the first configuration in N number of first order reference signal resource configuration, or

Second feedback information includes the identification information of the second configuration, and described second is configured to the corresponding second level reference signal resource configuration of first configuration, or

Second feedback information include first configuration identification information and first configuration corresponding second level CSI measurement as a result, or

Second feedback information includes the identification information of second configuration and the result of the corresponding second level CSI measurement of second configuration.
Terminal device according to claim 29, which is characterized in that each first order reference signal resource configuration and the corresponding same CSI process of the corresponding second level reference signal resource configuration of each first order reference signal resource configuration；

The processor is also used to,

The second level CSI measurement obtained according to M CSI process as a result, determining second feedback information, M is the positive integer less than or equal to N.
The terminal device according to claim 27 or 30, which is characterized in that the receiver is also used to receive the notification message for the M CSI process that the sending device is sent.
The terminal device according to any one of claim 25 to 31, it is characterized in that, each first order reference signal resource configuration corresponds to that a first order CSI is measured as a result, the result that the corresponding different first order CSI of at least two first order reference signal resources configuration is measured in N number of first order reference signal resource configuration.