CN105322989A

CN105322989A - Pilot frequency sending method, pilot frequency measurement method and pilot frequency measurement device in MIMO system

Info

Publication number: CN105322989A
Application number: CN201510424642.9A
Authority: CN
Inventors: 陈润华; 高秋彬
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-07-30
Filing date: 2015-07-17
Publication date: 2016-02-10
Anticipated expiration: 2035-07-17
Also published as: WO2016015579A1; CN105322989B

Abstract

The invention discloses a pilot frequency sending method, a pilot frequency measurement method and a pilot frequency measurement device in an MIMO system. The pilot frequency sending method in the MIMO system comprises the following steps: performing beam forming of a pilot frequency signal on a first pilot frequency resource of at least one P port configured by a base station, wherein different beam forming matrixes are adopted on different ports of same first pilot frequency resources; P is an integer not less than 2; and sending a beam formed pilot frequency signal on the first pilot frequency resource of the at least one P port. Correspondingly, the problem that the overhead of CSI-RS resources is high can be solved.

Description

Pilot sending method in mimo system, method of measurement and device

Technical field

The present invention relates to wireless communication technology field, particularly relate to the pilot sending method in a kind of multi-input multi-output system, method of measurement and device.

Background technology

In existing cellular system, base-station antenna array is generally in horizontal.In fact each antenna comprises one group of antenna element, often organizes antenna element by a radio frequency unit co-controlling, different group antenna element different radio frequency unit controls.Transmission end of base station wave beam only can adjust in the horizontal direction, and vertical direction is fixing angle of declination, and therefore various wave beam forming/precoding techniques etc. all carry out based on horizontal direction channel information.In fact, because wireless signal is three-dimensional propagation in space, the method for therefore fixing angle of declination can not make the performance of system reach optimum.The wave beam adjustment of vertical direction is for reduction presence of intercell interference, and improving systematic function has very important meaning.

Along with the development of antenna technology, there is the active antenna that independently can control each antenna element in industry.Adopt this design, aerial array can horizontally be strengthened to three-dimensional horizontal and vertical by present bidimensional and arrange, i.e. three-dimensional (3D) multiple-input and multiple-output (Multiple-InputMultiple-Output, MIMO) antenna technology.The mode of this aerial array, makes wave beam dynamic conditioning in the vertical direction become possibility.Because each antenna element can control separately, therefore this antenna technology is also referred to as full dimension (Full-Dimension, FD) MIMO.

Realize wave beam dynamic conditioning in vertical direction, and then realize three-dimensional wave beam forming/precoding, need the channel condition information (ChannelStateInformation, CSI) relying on subscriber equipment (UserEquipment, UE) to report.But existing scheme is actually and the channel feedback of the feedback of vertical beam figuration vector and horizontal dimensions is combined.The technical problem underlying that the program exists comprises:

The feedback of wave beam forming vector of vertical dimensions and the channel feedback of horizontal dimensions are combined, eNB needs the expense of the pilot resources of configuration large; And

In order to the information making eNB obtain best vertical beam figuration vector, UE needs to feed back the whole measurement results at every turn measured, and causes uplink feedback expense large.

Summary of the invention

The object of this invention is to provide the pilot sending method in a kind of mimo system, method for measuring pilot frequency and device, to solve the large problem of CSI-RS expense.

The object of the invention is to be achieved through the following technical solutions:

A pilot sending method in mimo system, the method comprises:

To base station configuration at least one P port first pilot resources on pilot signal carry out wave beam forming, the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; And

At least one P port first pilot resources described sends the pilot signal through wave beam forming.

Based on above-mentioned application scenarios, for realizing wave beam dynamic conditioning in the vertical direction, existing scheme is combined at the feedback of wave beam forming vector of vertical dimensions and the channel feedback of horizontal dimensions, and therefore, eNB needs the expense of the pilot resources of configuration large.And the technical scheme that the embodiment of the present invention provides, not that the feedback of wave beam forming vector of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, different beams figuration matrix is adopted to carry out wave beam forming on the different port of P port first pilot resources, realize the feedback of wave beam formed matrix, and then realize the dynamic conditioning of wave beam (in the vertical direction or horizontal direction), greatly reduce the expense of pilot resources compared to prior art.

As a nonrestrictive embodiment, the pilot resources that eNB configures a P port adopts different wave beam formed matrixes to carry out figuration to UE, eNB at different ports.UE configuration P port on carry out channel measurement, choose n the port of wherein measurement result the best, n be more than or equal to 1 integer, n also can equal P, then the port information chosen is informed to eNB.N the port that eNB chooses according to the UE obtained is corresponding carries out channel figuration.Wherein, channel measurement on P port can be Reference Signal Received Power (referencesymbolreceivedpower, be called for short RSRP), or Reference Signal Received Quality (referencesymbolreceivedquality, be called for short RSRQ), also can be channel condition information (Channelstateinformation).UE, when choosing n port, preferably, can choose the port of n>=1 measurement result the best.The port of the n of UE feedback can have multiple implementation, such as choose best n=1 port and report its port index (index), or choose n<P port and report and choose port index, such UE does not need to report all channel measurements on P port, but only report the index of n<P the port resource chosen, reduce uplink feedback expense.In addition because UE measures P port, compared to the pilot resources measuring P multiport, UE complexity reduces.Or UE also can not carry out port and choose, and reports the measuring amount on all n=P port.Because UE measures P port, compared to the pilot resources measuring P multiport, UE complexity reduces.

Alternatively, the method also comprises:

Receive the information that subscriber equipment reports after all or part of port of at least one P port first pilot resources described is measured; And

According to the information of described user equipment to report, selecting at least one wave beam formed matrix in the wave beam formed matrix adopted from each port of at least one P port first pilot resources described, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of described subscriber equipment.

Alternatively, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result of the described all or part of port at least one P port first pilot resources described.

Alternatively, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value; Described measurement reporting information comprises:

The identification information of Reference Signal Received Power and/or Reference Signal Received Quality measured value and/or the highest port of channel condition information measured value; Or

By the identification information of the individual port of L ' before Reference Signal Received Power and/or Reference Signal Received Quality measured value and/or the descending of channel condition information measured value, L ' is for being less than the integer of described all or part of port number; Or

The Reference Signal Received Power of the described all or part of port of described P port first pilot resources and/or Reference Signal Received Quality and/or channel condition information measured value.

Based on above-mentioned any means embodiment, alternatively, described base station is also configured with at least one second pilot resources, and the method also comprises:

Pilot signal at least one second pilot resources adopting at least one wave beam formed matrix selected to configure described base station carries out wave beam forming; And

At least one second pilot resources that described base station configures sends the pilot signal through wave beam forming.

A pilot sending method in mimo system, the method comprises:

Respectively wave beam forming is carried out to the pilot signal on P first pilot resources of base station configuration, different first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; And

The pilot signal through wave beam forming is sent respectively on described P the first pilot resources.

For realizing wave beam dynamic conditioning in the vertical direction, existing scheme is combined at the feedback of wave beam forming vector of vertical dimensions and the channel feedback of horizontal dimensions, and therefore, eNB needs the expense of the pilot resources of configuration large.And the technical scheme that the embodiment of the present invention provides, not that the feedback of wave beam forming vector of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, these first pilot resources are only for carrying out the feedback of wave beam formed matrix thus decreasing the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

As a nonrestrictive embodiment, the pilot resources that eNB configures P multiport adopts different wave beam formings to UE, eN on different pilot resources.UE carries out channel measurement on P pilot resources of configuration, chooses n the pilot resources of wherein measurement result the best, n be more than or equal to 1 integer, then by the information feed back of pilot resources chosen to eNB.The information of n the pilot resources that eNB chooses according to the UE obtained responds carries out channel figuration.Wherein, channel measurement on pilot resources can be Reference Signal Received Power (referencesymbolreceivedpower, be called for short RSRP), or Reference Signal Received Quality (referencesymbolreceivedquality, be called for short RSRQ), also can be channel condition information (Channelstateinformation).UE, when choosing n pilot resources, preferably, can choose the pilot resources of n measurement result the best.The information of n pilot resources of UE feedback can have multiple implementation, such as choose best n=1 pilot resources and report its resource index, or choose n<P pilot resources and report the index choosing resource, or feeding back the measurement result on n<P pilot resources simultaneously.Such UE does not need to report the channel measurement on P pilot resources, but only reports the index of n<P the pilot resources chosen, and reduces uplink feedback expense.

Alternatively, the method also comprises:

Receive the information reported after subscriber equipment is measured on described P the first pilot resources; And

According to the information of described user equipment to report, selecting at least one wave beam formed matrix in the wave beam formed matrix used from described P the first pilot resources, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of described subscriber equipment.

Alternatively, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on described P the first pilot resources.

The identification information of Reference Signal Received Power and/or Reference Signal Received Quality and/or the highest the first pilot resources of channel condition information measured value; Or

By the identification information of L before Reference Signal Received Power and/or Reference Signal Received Quality and/or the descending of channel condition information measured value the first pilot resources, L is the integer being less than P; Or

Reference Signal Received Power on described P the first pilot resources and/or Reference Signal Received Quality and/or channel condition information measured value.

Based on the inventive concept same with method, the embodiment of the present invention provides the dispensing device of the pilot tone in a kind of mimo system, and described device comprises:

First wave beam forming module, the pilot signal at least one P port first pilot resources configured base station carries out wave beam forming, and the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; And

First pilot signal sending module, for sending the pilot signal through wave beam forming at least one P port first pilot resources described.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, different beams figuration matrix is adopted to carry out wave beam forming on the different port of P port first pilot resources, realize the feedback of wave beam formed matrix, and then realize the dynamic conditioning of wave beam (in the vertical direction or horizontal direction), greatly reduce the expense of pilot resources compared to prior art.

Alternatively, described device also comprises:

First measures reporting information receiver module, for receiving the information that subscriber equipment reports after all or part of port of at least one P port first pilot resources described is measured; And

First wave beam forming matrix selection block, for the information according to described user equipment to report, selecting at least one wave beam formed matrix in the wave beam formed matrix adopted from each port of described P port first pilot resources, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of described subscriber equipment.

Alternatively, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on all or part of port of at least one P port first pilot signal described.

The identification information of Reference Signal Received Power and/or Reference Signal Received Quality and/or the highest port of channel condition information measured value; Or

By the identification information of the individual port of L ' before Reference Signal Received Power and/or Reference Signal Received Quality and/or the descending of channel condition information measured value, L ' is for being less than the integer of described all or part of port number; Or

Based on above-mentioned any device embodiment, alternatively, described base station is also configured with at least one second pilot resources, and described device also comprises:

Second wave beam forming module, the pilot signal at least one second pilot resources configured described base station for adopting at least one wave beam formed matrix of selection carries out wave beam forming; And

Second pilot signal sending module, sends the pilot signal through wave beam forming at least one second pilot resources configured in described base station.

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of base station, and in multi-input multi-output system, this base station is configured with at least one P port first pilot resources, P be not less than 2 integer, this base station comprises:

Processor, this processor is configured to perform the code possessing following computer program: carry out wave beam forming to the pilot signal at least one P port first pilot resources of base station configuration, the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; At least one P port first pilot resources described sends the pilot signal through wave beam forming; And

Memory, this memory is configured to the code preserving above computer program.

Based on the inventive concept same with method, the embodiment of the present invention also provides the dispensing device of the pilot tone in a kind of mimo system, and described device comprises:

3rd wave beam forming module, for carrying out wave beam forming to the pilot signal on P first pilot resources of base station configuration respectively, different first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer;

3rd pilot signal sending module, for sending the pilot signal through wave beam forming respectively on described P the first pilot resources.

The device that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources only for carrying out the feedback of horizontal or vertical wave beam formed matrix, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Alternatively, described device also comprises:

Second measures reporting information receiver module, for receiving the information that subscriber equipment reports after described P the first pilot resources is measured; And

Second wave beam forming matrix selection block, for the information according to described user equipment to report, selecting at least one wave beam formed matrix in the wave beam formed matrix used from described P the first pilot resources, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of described subscriber equipment.

4th wave beam forming module, the pilot signal at least one second pilot resources configured described base station for adopting at least one wave beam formed matrix of selection carries out wave beam forming;

4th pilot signal sending module, sends the pilot signal through wave beam forming at least one second pilot resources configured in described base station.

Based on the inventive concept same with method, the embodiment of the present invention provides a kind of base station, and in multi-input multi-output system, this base station is configured with P the first pilot resources, P be not less than 2 integer, this base station comprises:

Processor, this processor is configured to perform the computer program possessing following function: the pilot signal on P the first pilot resources configured described base station respectively carries out wave beam forming, and different first pilot resources adopts different wave beam formed matrixes; The pilot signal through wave beam forming is sent respectively on described P the first pilot resources;

The base station that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources only for carrying out the feedback of horizontal or vertical wave beam formed matrix, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

A method for measuring pilot frequency in mimo system, comprising:

Base station configuration at least one P port first pilot resources all or part of port on measure, P be not less than 2 integer; And

Report after the described all or part of port of at least one P port first pilot resources described is measured.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, realize the feedback of wave beam formed matrix, and then realize the dynamic conditioning of wave beam (in the vertical direction or horizontal direction), greatly reduce the expense of pilot resources compared to prior art.

Alternatively, report after the described all or part of port of at least one P port first pilot resources described is measured, comprising:

According to the measurement result on the described all or part of port of at least one P port first pilot resources described, generate and measure reporting information; And

Described measurement reporting information is sent to described base station.

The technical scheme that the embodiment of the present invention provides, does not need to feed back the measurement result at every turn measured, and only needs the measurement reporting information that feedback generates according to the measurement result at least one P port first pilot resources, because this reducing uplink feedback expense.

The Reference Signal Received Power of the described all or part of port of described P port first pilot resources and/or Reference Signal Received Quality measured value.

A method for measuring pilot frequency in mimo system, comprising:

P first pilot resources of base station configuration carries out respectively measure P be not less than 2 integer; And

Report after described P the first pilot resources is measured.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources only for carrying out the feedback of horizontal or vertical wave beam formed matrix, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Alternatively, report after described P the first pilot resources is measured, comprising:

According to the measurement result on described P the first pilot resources, generate and measure reporting information; And

Described measurement reporting information is sent to described base station.

The technical scheme that the embodiment of the present invention provides, does not need to feed back the measurement result at every turn measured, and only needs the measurement reporting information that feedback generates according to the measurement result on all or part of port of the first pilot resources, because this reducing uplink feedback expense.

Based on the inventive concept same with method, the embodiment of the present invention also provides the device of the pilot measurement in a kind of mimo system, comprising:

First pilot measurement module, measures on all or part of port of at least one P port first pilot resources configured in base station, P be not less than 2 integer; And

First measures reporting module, reports after measuring on the described all or part of port at least one P port first pilot resources described.

Alternatively, described first measure reporting module specifically for:

According to the measurement result on the described all or part of port of at least one P port first pilot resources described, generate and measure reporting information; Described measurement reporting information is sent to described base station.

Based on above-mentioned any device embodiment, alternatively, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value; Described measurement reporting information comprises:

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of subscriber equipment, comprising:

Processor, this processor is configured to perform the computer program possessing following function: base station configuration at least one P port first pilot resources all or part of port on measure, P be not less than 2 integer; Report after the described all or part of port of at least one P port first pilot resources described is measured; And

Based on the inventive concept same with method, the embodiment of the present invention also provides the device of the pilot measurement in a kind of mimo system, and this device comprises:

Second pilot measurement module, measures respectively on the P that configures in base station the first pilot resources, P be not less than 2 integer; And

Second measures reporting module, reports after measuring on described P the first pilot resources.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources only for carrying out the feedback of wave beam formed matrix, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Alternatively, second measure reporting module specifically for:

Described measurement reporting information is sent to described base station.

Processor, this processor is configured to perform the computer program possessing following function: measure respectively on P first pilot resources of base station configuration, P be not less than 2 integer; Report after described P the first pilot resources is measured; And

Accompanying drawing explanation

The flow chart of the first pilot sending method that Fig. 1 provides for the embodiment of the present invention;

The flow chart of the second pilot sending method that Fig. 2 provides for the embodiment of the present invention;

The flow chart of the first method for measuring pilot frequency that Fig. 3 provides for the embodiment of the present invention;

The flow chart of the second method for measuring pilot frequency that Fig. 4 provides for the embodiment of the present invention;

The schematic diagram of single port first pilot resources under the conventional cyclic prefix that Fig. 5 a ~ Fig. 5 h provides for the embodiment of the present invention;

The schematic diagram of single port first pilot resources under the extended cyclic prefix that Fig. 6 a ~ Fig. 6 h provides for the embodiment of the present invention;

The schematic diagram of the first pilot tone dispensing device that Fig. 7 provides for the embodiment of the present invention;

The schematic diagram of the second pilot tone dispensing device that Fig. 8 provides for the embodiment of the present invention;

The schematic diagram of the first pilot measurement device that Fig. 9 provides for the embodiment of the present invention; And

The schematic diagram of the second pilot measurement device that Figure 10 provides for the embodiment of the present invention.

Embodiment

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described further.Following examples only for illustration of the present invention, but are not used for limiting the scope of the invention.

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiments.Based on described embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.

Unless otherwise defined, technical term used herein or scientific terminology should be in field belonging to the present invention the ordinary meaning that the personage with general technical ability understands." first ", " second " that use in patent application specification of the present invention and claims and similar word do not represent any order, quantity or importance, and are only used to distinguish different parts.Equally, the similar word such as " " or " " does not represent restricted number yet, but represents to there is at least one." connection " or " being connected " etc. similar word be not defined in physics or the connection of machinery, no matter but can comprise electrical connection, be direct or indirectly." on ", D score, "left", "right" etc. only for representing relative position relation, when be described object absolute position change after, then this relative position relation also correspondingly changes.

Below in conjunction with accompanying drawing, be described in detail to the technical scheme that the embodiment of the present invention provides, example, only for explaining the present invention, is not intended to limit scope of the present invention.

In mimo system, base station is configured with P K port first pilot resources, P be not less than 2 integer, K is the line number of two-dimensional antenna array or the integer of columns that are less than base station.Certainly, as will be understood by the skilled person in the art, the value of K is not limited to the line number of two-dimensional antenna array or the integer of columns that are less than base station, also can choose other suitable values as required.Do not get rid of, the port number of different first pilot resources can be the same or different.Wherein, K port first pilot resources, refers to one group of running time-frequency resource.The value of P is relevant to the quantity of the wave beam formed matrix of subscriber equipment with configuration.Alternatively, the value of P is identical to the quantity of the wave beam formed matrix of subscriber equipment with configuration.If wave beam formed matrix is used for carrying out wave beam forming in vertical dimensions, so, K is less than the columns of the two-dimensional antenna array of base station, if wave beam formed matrix is used for carrying out wave beam forming in horizontal dimensions, so, K is less than the line number of the two-dimensional antenna array of base station.Certainly, as will be understood by the skilled person in the art, the value of K is not limited to the line number of the two-dimensional antenna array being less than base station, also can choose other suitable values as required.It should be pointed out that mimo system in this application scenarios can but be not limited only to be 3D/FDMIMO system, also can be that other are provided with the mimo system of antenna in vertical dimensions.

Based on such scene, the pilot sending method in a kind of mimo system that the embodiment of the present invention provides as shown in Figure 1, specifically comprises following operation:

Pilot signal on step 100, P K port first pilot resources configuring above-mentioned base station respectively carries out wave beam forming, and different first pilot resources adopts different wave beam formed matrixes.Here, the value of K be more than or equal to 1 positive integer.

That is, on different K port first pilot resources, different wave beam formed matrixes is adopted to carry out wave beam forming.

Step 110, to send through the pilot signal of wave beam forming to UE on above-mentioned P K port first pilot resources respectively.

In each embodiment of the present invention, pilot signal can but be not limited only to be CSI-RS, community own reference signal (Cell-specificReferenceSignal, CRS) etc.

Above-mentioned processing procedure can but be not limited only to be realized by base station.

Above-mentioned processing procedure is applicable to wave beam forming dynamic conditioning in the vertical direction, is certainly also applicable to wave beam forming dynamic conditioning in the horizontal direction.

In each embodiment of the present invention, special circumstances of wave beam forming are for adopting wave beam formed matrix.

Based on above-mentioned application scenarios, for realizing wave beam dynamic conditioning in the vertical direction, existing scheme is combined at the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions, therefore, eNB needs the pilot resources configuring P M port, wherein, P is the quantity of vertical dimensions figuration matrix, and M is the columns of two-dimensional antenna array.And the technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources is only for carrying out the feedback of (horizontal or vertical) wave beam formed matrix, the port number of the first therefore configured pilot resources can be less than line number or the columns of two-dimensional antenna array, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Be described with the example that is chosen as of vertical beam figuration matrix in the following each embodiment of the present invention, method of the present invention may be used for the selection of horizontal beam figuration matrix equally, and method is identical, repeats no more.

In the embodiment of the present invention, alternatively, also comprise: receive the information reported after UE measures on above-mentioned P K port first pilot resources; According to the information that this UE reports, selecting at least one wave beam formed matrix in the wave beam formed matrix used from above-mentioned P K port first pilot resources, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of this UE.

In the embodiment of the present invention, the information that UE reports can but be not limited only to that to be this UE generate according to the measurement result on above-mentioned P K port first pilot resources.Certainly, the information that UE reports also can be exactly the measurement result on P K port first pilot resources.

Wherein, measurement result can but be not limited only to be Reference Signal Received Power (ReferenceSignalReceivingPower, and/or Reference Signal Received Quality (ReferenceSignalReceivingQuality, RSRQ) and/or channel condition information measured value RSRP).For RSRP and/or RSRQ measured value, measure reporting information can but be not limited only to following any one:

The identification information of K port first pilot resources that RSRP and/or RSRQ measured value is the highest;

By the identification information of L K port first pilot resources before the descending of RSRP and/or RSRQ measured value, L is the integer being less than P, wherein, the identification information of L K port first pilot resources of feedback is according to the ascending order of RSRP and/or RSRQ of correspondence or descending;

RSRP and/or RSRQ measured value on P K port first pilot resources.Alternatively, RSRQ and/or the RSRQ measured value ascending order on P K port first pilot resources of feedback or descending.

Wherein, K port first pilot resources identification information can but be not limited only to be the index of K port first pilot resources.

In the embodiment of the present invention, from above-mentioned P vertical beam figuration matrix, select the mode of at least one to have multiple, exemplify wherein several below.

If measure the identification information that reporting information comprises the highest K port first pilot resources of RSRP and/or RSRQ measured value, then the vertical beam figuration matrix that K port first pilot resources selecting this identification information corresponding uses.

If measure reporting information to comprise identification information by L K port first pilot resources before the descending of RSRP and/or RSRQ measured value, then select at least one in the vertical beam figuration matrix that can use from K port first pilot resources corresponding to these identification informations.

If measurement reporting information comprises RSRP and/or the RSRQ measured value on P K port first pilot resources, then according to the sequence of RSRP and/or RSRQ measured value, in the vertical beam figuration matrix used from K port first pilot resources of correspondence, select at least one.

Clearly utilizing at least one vertical beam figuration matrix of selection under sending to the downstream signal of this UE to carry out the prerequisite of vertical beam figuration, illustrate in conjunction with above-mentioned, those skilled in the art, without the need to paying creative work, can obtain other selection modes.

Based on above-mentioned any means embodiment, after selecting at least one vertical beam figuration matrix, other problems can be solved with the vertical beam figuration matrix selected, such as, carry out the wave beam forming of 3D/FDMIMO, precoding etc.

The wave beam forming that at least one vertical beam figuration matrix carries out 3D/FDMIMO is selected to utilize, base station is also configured with at least one second pilot resources, and corresponding implementation can be: the pilot signal at least one second pilot resources adopting at least one the vertical beam figuration matrix selected to configure base station carries out vertical beam figuration (namely adopting at least one vertical beam figuration matrix of selection to carry out vertical beam figuration to sending to the downstream signal of above-mentioned UE); At least one second pilot resources of base station configuration sends the pilot signal through vertical beam figuration.

The implementation adopting the vertical beam figuration matrix selected to carry out vertical beam figuration on the second pilot resources has multiple, and the present invention cannot enumerate, and is only illustrated with several preferred embodiment.

Suppose a vertical beam figuration matrix base station selected, then adopted this vertical beam figuration matrix of selection to carry out vertical beam figuration to the pilot signal on all second pilot resources.UE measures on the second pilot resources, and feedback measurement.Measurement result according to UE feedback carries out wave beam forming on 3D/FDMIMO aerial array, does not need the wave beam forming for 3D/FDMIMO aerial array to be further processed.

Suppose that base station is configured with two the second pilot resources, and base station selected two vertical beam figuration matrixes, then base station adopts different vertical beam figuration matrixes to carry out vertical beam figuration to the pilot signal on different second pilot resources respectively.UE measures respectively on these two second pilot resources, and feeds back the measurement result measured on these two second pilot resources.According to UE respectively to the feedback result that this two second pilot resources are measured, select the beamforming scheme of 3D/FDMIMO aerial array.

In mimo system, base station is configured with at least one P port first pilot resources, P be not less than 2 integer.Wherein, P port first pilot resources, refers to one group of running time-frequency resource.The value of P is relevant to the quantity of the wave beam formed matrix of subscriber equipment with configuration.Alternatively, the value of P is identical to the quantity of the wave beam formed matrix of subscriber equipment with configuration.The quantity of P port first pilot resources of configuration is less than line number or the columns of two-dimensional antenna matrix.It should be pointed out that mimo system in this application scenarios can but be not limited only to be 3D/FDMIMO system, also can be that other are provided with the mimo system of antenna in vertical dimensions.

Be described to configure P port first pilot resources below, the implementation configuring two or more P port first pilot resources with reference to description below, can repeat no more.

Based on such scene, the pilot sending method in the another kind of mimo system that the embodiment of the present invention provides as shown in Figure 2, specifically comprises following operation:

Step 200, to base station configuration at least one P port first pilot resources on pilot signal carry out wave beam forming, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer.

Step 210, on above-mentioned P port first pilot resources, send pilot signal through wave beam forming.

Based on above-mentioned application scenarios, for realizing wave beam dynamic conditioning in the vertical direction, existing scheme is combined at the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions, and therefore, eNB needs the pilot resources configuring P M port.And the technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, different beams figuration matrix is adopted to carry out wave beam forming on the different port of P port first pilot resources, realize the feedback of wave beam formed matrix, and then realize the dynamic conditioning of wave beam (in the vertical direction or horizontal direction), greatly reduce the expense of pilot resources compared to prior art.

Alternatively, the technical scheme that the embodiment of the present invention provides also comprises:

In the embodiment of the present invention, the information that UE reports can but be not limited only to that to be this UE generate according to the measurement result on all or part of port of above-mentioned P port first pilot resources.Certainly, the information that UE reports also can be exactly the measurement result on P port first pilot resources.

Wherein, measurement result can but be not limited only to be RSRP and/or RSRQ measured value.For RSRP and/or RSRQ measured value, measure reporting information can but be not limited only to following any one:

The identification information of the port that RSRP and/or RSRQ measured value is the highest;

By the identification information of the individual port of L ' before the descending of RSRP and/or RSRQ measured value, L ' is for being less than the integer of above-mentioned all or part of port number, wherein, the identification information of the individual port of the L ' of feedback is according to the ascending order of RSRP and/or RSRQ of correspondence or descending;

RSRP and/or the RSRQ measured value of the above-mentioned all or part of port of P port first pilot resources.Alternatively, RSRP and/or the RSRQ measured value ascending order of the above-mentioned all or part of port of P port first pilot resources of feedback or descending.

Wherein, the port of P port first pilot resources identification information can but be not limited only to be the index of port.

If measure the identification information that reporting information comprises the highest port of RSRP and/or RSRQ measured value, then select the vertical beam figuration matrix that port corresponding to this identification information uses.

If measure reporting information to comprise identification information by the individual port of L ' before the descending of RSRP and/or RSRQ measured value, then select at least one in the vertical beam figuration matrix that can use from port corresponding to these identification informations.

If measure RSRP and/or the RSRQ measured value that reporting information comprises the above-mentioned all or part of port of P port first pilot resources, then according to the sequence of RSRP and/or RSRQ measured value, in the vertical beam figuration matrix used from the port of correspondence, select at least one.Clearly utilizing at least one vertical beam figuration matrix of selection under sending to the downstream signal of this UE to carry out the prerequisite of vertical beam figuration, illustrate in conjunction with above-mentioned, those skilled in the art, without the need to paying creative work, can obtain other selection modes.

Based on the above-mentioned any means embodiment of Fig. 2, after selecting at least one vertical beam figuration matrix, other problems can be solved with the vertical beam figuration matrix selected, such as, carry out the wave beam forming of 3D/FDMIMO, precoding etc.Its specific implementation with reference to the description of above-described embodiment, can repeat no more herein.

The embodiment of the present invention provides the method for measuring pilot frequency in a kind of mimo system, and as shown in Figure 3, the method specifically comprises following operation:

Step 300, base station configuration P K port first pilot resources on measure respectively, different first pilot resources adopt different beams figuration matrix to carry out wave beam forming, P be not less than 2 integer, K is less than the line number of base station two-dimensional antenna array or the integer of columns.Certainly, as will be understood by the skilled person in the art, the value of K is not limited to the line number of two-dimensional antenna array or the integer of columns that are less than base station, also can choose other suitable values as required.The port number of different first pilot resources can be identical, also can be different.

Wherein, P K port first pilot resources that base station configures can be known according to agreement in advance, also can know by modes such as high-level signalings P K port first pilot resources that volume base station configures, the present invention is to knowing that the concrete mode of P K port first pilot resources is not construed as limiting.

Wherein, the identification information knowing each K port first pilot resources is needed, sub-frame offset, cycle etc.

Step 310, measure on above-mentioned P K port first pilot resources after report.

In each embodiment of the present invention, measurement result can be following at least one item: RSRP measured value, RSRQ measured value, CSI etc.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources is only for carrying out the feedback of horizontal or vertical wave beam formed matrix, the port number of the first therefore configured pilot resources can be less than line number or the columns of two-dimensional antenna array, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Alternatively, report after described P K port first pilot resources is measured, comprising:

According to the measurement result on described P K port first pilot resources, generate and measure reporting information; And

Described measurement reporting information is sent to described base station.

The technical scheme that the embodiment of the present invention provides, does not need to feed back the measurement result at every turn measured, and only needs the measurement reporting information that feedback generates according to the measurement result on P K port first pilot resources, because this reducing uplink feedback expense.

Above-mentioned pilot measurement feedback method is suitable for and the first application scenarios above-mentioned, coordinates implement with the method shown in Fig. 1.It should be pointed out that above-mentioned pilot measurement feedback method is not limited only to the first application scenarios above-mentioned.

The preferred implementation of one of above-mentioned steps 310 is: according to the measurement result on inherent above-mentioned P K port first pilot resources of predetermined amount of time, generate and measure reporting information.

If measurement result is RSRP and/or RSRQ measured value, the content that measurement reporting information specifically comprises with reference to the description of above-described embodiment, can repeat no more herein.

Method for measuring pilot frequency in the another kind of mimo system that the embodiment of the present invention provides, as shown in Figure 4, the method specifically comprises following operation:

Step 400, base station configuration at least one P port first pilot resources all or part of port on measure, the different port of same first pilot resources adopt different wave beam formed matrixes to carry out wave beam forming, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, P be not less than 2 integer.

Wherein, P port first pilot resources that base station configures can be known according to agreement in advance, also can know by modes such as high-level signalings P port first pilot resources that volume base station configures, the present invention is to knowing that the concrete mode of P port first pilot resources is not construed as limiting.

Wherein, the identification information knowing P port first pilot resources is needed, sub-frame offset, cycle etc.

Step 410, measure on the described all or part of port of at least one P port first pilot resources above-mentioned after report.

Described measurement reporting information is sent to described base station.

In addition, if base station is only configured with P port first pilot channel, so, UE does not need to possess the ability processing multiple pilot resources.

The preferred implementation of one of above-mentioned steps 410 is: according to the measurement result on all or part of port of inherent above-mentioned P port first pilot resources of predetermined amount of time, generate and measure reporting information.

Still for the first scene above-mentioned, the implementation implementing the embodiment of the present invention is coordinated to be described to base station and UE.

Suppose that there is one group of vertical beam figuration matrix base station, such as can be written as V1, V2 ... VP}, and the first pilot resources of base station configuration P single port or multiport.Base station uses different vertical beam figuration matrixes to carry out vertical beam figuration on the first different pilot resources.Such as, vertical beam figuration matrix V i is adopted to carry out vertical beam figuration at i-th the first pilot resources.Base station sends CSI-RS at the first pilot resources after vertical beam figuration to UE.UE measures each first pilot resources, obtains the RSRP measured value on this first pilot resources.Then UE generates according to the RSRP measured value on each first pilot resources and measures reporting information and send to base station.After base station receives the measurement reporting information of UE transmission, the information of optimum vertical dimensions wave beam formed matrix then can be obtained according to the measurement reporting information received, can be an optimum vertical beam figuration matrix (such as, or one group of more excellent vertical beam figuration matrix (such as { V1, V2}) V1).

For single port first pilot resources, under conventional cyclic prefix (normalcyclicprefix), single port first pilot resources of base station configuration is as shown in Fig. 5 a ~ 5h.Wherein, shown in Fig. 5 a is configure the first pilot resources at port R15, shown in Fig. 5 b is configure the first pilot resources at port R16, shown in Fig. 5 c is configure the first pilot resources at port R17, shown in Fig. 5 d is configure the first pilot resources at port R18, shown in Fig. 5 e is configure the first pilot resources at port R19, shown in Fig. 5 f is configure the first pilot resources at port R20, shown in Fig. 5 g is configure the first pilot resources at port R21, and shown in Fig. 5 h is configure the first pilot resources at port R22.Under extended cyclic prefix (extendedcyclicprefix), the first pilot resources of base station configuration is as shown in Fig. 6 a ~ 6h.Wherein, shown in Fig. 6 a is configure the first pilot resources at port R15, shown in Fig. 6 b is configure the first pilot resources at port R16, shown in Fig. 6 c is configure the first pilot resources at port R17, shown in Fig. 6 d is configure the first pilot resources at port R18, shown in Fig. 6 e is configure the first pilot resources at port R19, shown in Fig. 6 f is configure the first pilot resources at port R20, shown in Fig. 6 g is configure the first pilot resources at port R21, and shown in Fig. 6 h is configure the first pilot resources at port R22.

Still for above-mentioned the second scene, the implementation implementing the embodiment of the present invention is coordinated to be described to base station and UE.

Base station is configured with the first pilot resources of a P port.L the port that UE is configured in the first pilot resources carries out RSRP measurement.Base station is configured with one group of vertical beam figuration matrix, such as can be written as V1, V2 ... VP}.Base station each port in this P port first pilot resources adopt different vertical beam figuration matrixes to carry out vertical beam figuration.Such as, i-th port adopts vertical beam figuration matrix V i to carry out vertical beam figuration.Base station sends CSI-RS at the first pilot resources after vertical beam figuration to UE.UE measures each port of the first pilot resources, obtains the RSRP measured value on this port.Then UE generates according to the RSRP measured value on each port and measures reporting information and send to base station.After base station receives the measurement reporting information of UE transmission, the information of optimum vertical beam figuration matrix then can be obtained according to the measurement reporting information received, can be an optimum vertical beam figuration matrix (such as, or one group of more excellent vertical beam figuration matrix (such as { V1, V2}) V1).

Relative to a upper application scenarios, the implementation that the second application scenarios is corresponding reduce further pilot-frequency expense.This is because: the design of what pilot resources in LTE adopted is CDM/FDM, each pilot frequency port occupies two resource grains.In the implementation of above-mentioned application scenarios one, if be configured with the first pilot resources of P single port, so the first pilot resources expense is 2P resource grains; If be configured with the first pilot resources of N number of multiport, so the expense of the first pilot resources can more strengthen.Compare mutually, in the implementation of application scenarios two, only need P resource grains, decrease the first pilot resources expense of at least half.

Relative to a upper application scenarios, the implementation that the second application scenarios is corresponding reduce further pilot tone signaling consumption.In the implementation of above-mentioned application scenarios one, P the first pilot resources needs P high-level signaling, but only needs a high-level signaling in the implementation of the second application scenarios.

Based on the inventive concept same with method, the embodiment of the present invention provides the dispensing device of the pilot tone in a kind of mimo system, and as shown in Figure 7, this device comprises:

3rd wave beam forming module 701, for carrying out wave beam forming to the pilot signal on P K port first pilot resources of base station configuration respectively, different first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer, K is the line number of two-dimensional antenna array or the integer of columns that are less than described base station; And

3rd pilot signal sending module 702, for sending the pilot signal through wave beam forming to subscriber equipment respectively on described P K port first pilot resources.

Alternatively, this device also comprises:

Second measures reporting information receiver module, for receiving the information that subscriber equipment reports after described P K port first pilot resources is measured; And

Second wave beam forming matrix selection block, for the information according to described user equipment to report, selecting at least one wave beam formed matrix in the wave beam formed matrix used from described P K port first pilot resources, carrying out wave beam forming to adopt at least one wave beam formed matrix of selection to sending to the downstream signal of described subscriber equipment.

Alternatively, user equipment to report information can but be not limited only to that to be this UE generate according to the measurement result on above-mentioned P K port first pilot resources.Certainly, the information that UE reports also can be exactly the measurement result on P K port first pilot resources.

Alternatively, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality measured value; Described measurement reporting information comprises:

The identification information of Reference Signal Received Power and/or the highest K port first pilot resources of Reference Signal Received Quality measured value; Or

By the identification information of L K port first pilot resources before Reference Signal Received Power and/or the descending of Reference Signal Received Quality measured value, L is the integer being less than P; Or

Reference Signal Received Power on described P K port first pilot resources and/or Reference Signal Received Quality measured value.

4th wave beam forming module, the pilot signal at least one second pilot resources configured described base station for adopting at least one wave beam formed matrix of selection carries out wave beam forming; And

Based on the inventive concept same with method, the embodiment of the present invention provides a kind of base station, in multi-input multi-output system, this base station is configured with P K port first pilot resources, P be not less than 2 integer, K is the line number of two-dimensional antenna array or the integer of columns that are less than described base station, and this base station comprises:

Processor, this processor is configured to perform the computer program possessing following function: the pilot signal on P K port first pilot resources configured described base station respectively carries out wave beam forming, and different first pilot resources adopts different wave beam formed matrixes; The pilot signal through wave beam forming is sent to subscriber equipment respectively on described P K port first pilot resources; And

The base station that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources is only for carrying out the feedback of horizontal or vertical wave beam formed matrix, the port number of the first therefore configured pilot resources can be less than line number or the columns of two-dimensional antenna array, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Based on the inventive concept same with method, the embodiment of the present invention also provides the dispensing device of the pilot tone in a kind of mimo system, and as shown in Figure 8, this device comprises:

First wave beam forming module 801, pilot signal at least one P port first pilot resources configured base station carries out wave beam forming, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; And

First pilot signal sending module 802, for sending the pilot signal through wave beam forming to subscriber equipment at least one P port first pilot resources described.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of horizontal or vertical wave beam formed matrix, different beams figuration matrix is adopted to carry out wave beam forming on the different port of P port first pilot resources, realize the feedback of the wave beam formed matrix of vertical dimensions or horizontal dimensions, and then realize wave beam in the vertical direction or the dynamic conditioning of horizontal direction, greatly reduce the expense of pilot resources compared to prior art.

Alternatively, this device also comprises:

First measures reporting information receiver module, for the information reported after all or part of port of at least one P port first pilot resources described is measured; And

Alternatively, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on described P K port first pilot resources.

The identification information of Reference Signal Received Power and/or the highest port of Reference Signal Received Quality measured value; Or

By the identification information of the individual port of L ' before Reference Signal Received Power and/or the descending of Reference Signal Received Quality measured value, L ' is for being less than the integer of described all or part of port number; Or

Processor, this processor is configured to perform the code possessing following computer program: carry out wave beam forming to the pilot signal at least one P port first pilot resources of base station configuration, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, the different port of same first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; At least one P port first pilot resources described sends the pilot signal through wave beam forming to subscriber equipment; And

The base station that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P port first pilot resources, this first pilot resources is only for carrying out the feedback of horizontal or vertical wave beam formed matrix, different beams figuration matrix is adopted to carry out wave beam forming on the different port of P port first pilot resources, realize the feedback of the wave beam formed matrix of vertical dimensions or horizontal dimensions, and then realize wave beam in the vertical direction or the dynamic conditioning of horizontal direction, greatly reduce the expense of pilot resources compared to prior art.

Based on the inventive concept same with method, the embodiment of the present invention also provides the device of the pilot measurement in a kind of mimo system, as shown in Figure 9, comprising:

Second pilot measurement module 901, measure respectively on P K port first pilot resources configured in base station, different first pilot resources adopt different wave beam formed matrixes to carry out wave beam forming respectively, P be not less than 2 integer, K is the line number of two-dimensional antenna array or the integer of columns that are less than described base station; And

Second measures reporting module 902, reports after measuring on described P K port first pilot resources.

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, the port number of the first therefore configured pilot resources can be less than line number or the columns of two-dimensional antenna array, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Alternatively, second measure reporting module 902 specifically for:

Described measurement reporting information is sent to described base station.

Processor, this processor is configured to perform the computer program possessing following function: measure respectively on P K port first pilot resources of base station configuration, different first pilot resources adopt different wave beam formed matrixes to carry out wave beam forming respectively, P be not less than 2 integer, K is the line number of two-dimensional antenna array or the integer of columns that are less than described base station; Report after described P K port first pilot resources is measured; And

The technical scheme that the embodiment of the present invention provides, not that the feedback of the wave beam formed matrix of vertical dimensions and the channel feedback of horizontal dimensions are combined, but configuration P the first pilot resources, this first pilot resources is only for carrying out the feedback of wave beam formed matrix, therefore, the port number of the first pilot resources of configuration can be less than line number or the columns of two-dimensional antenna array, thus decreases the expense of pilot resources.When configuring P single port the first pilot resources, the expense of pilot resources will reduce greatly.

Based on the inventive concept same with method, the embodiment of the present invention also provides the reporting device of the pilot measurement in a kind of mimo system, and as shown in Figure 10, this device comprises:

First pilot measurement module 1001, measure on all or part of port of at least one P port first pilot resources configured in base station, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, the different port of same first pilot resources adopts different wave beam formed matrixes to carry out wave beam forming, P be not less than 2 integer; And

First measures reporting module 1002, reports after measuring on the described all or part of port at least one P port first pilot resources described.

Alternatively, described first measure reporting module 1002 specifically for:

The technical scheme that the embodiment of the present invention provides, do not need to feed back the measurement result at every turn measured, only need the measurement reporting information that feedback generates according to the measurement result on all or part of port of P port first pilot resources, because this reducing uplink feedback expense.

The Reference Signal Received Power of the described all or part of port of at least one P port first pilot resources described and/or Reference Signal Received Quality measured value.

Processor, this processor is configured to perform the computer program possessing following function: measure on all or part of port of at least one P port first pilot resources of base station configuration, the quantity of the first pilot resources of configuration is less than line number or the columns of the two-dimensional antenna array of base station, the different port of same first pilot resources adopts different wave beam formed matrixes to carry out wave beam forming, P be not less than 2 integer; Report after the described all or part of port of at least one P port first pilot resources described is measured; And

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. the pilot sending method in multi-input multi-output system, is characterized in that, comprising:

2. method according to claim 1, is characterized in that, also comprises:

According to the information of described user equipment to report, at least one wave beam formed matrix is selected, to adopt at least one wave beam forming vector of selection to sending to the downstream signal of described subscriber equipment to carry out wave beam forming in the wave beam formed matrix adopted from each port of at least one P port first pilot resources described.

3. method according to claim 2, is characterized in that, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result of the described all or part of port at least one P port first pilot resources described.

4. method according to claim 3, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

5. the method according to any one of claim 2 ~ 4, is characterized in that, described base station is also configured with at least one second pilot resources,

Wherein, described method also comprises:

6. the pilot sending method in multi-input multi-output system, is characterized in that, comprising:

7. method according to claim 6, is characterized in that, also comprises:

8. method according to claim 7, is characterized in that, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on described P the first pilot resources.

9. method according to claim 8, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

10. the method according to any one of claim 7 ~ 9, is characterized in that, described base station is also configured with at least one second pilot resources,

Wherein, described method also comprises:

Method for measuring pilot frequency in 11. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

12. methods according to claim 11, is characterized in that, report, comprising after the described all or part of port of at least one P port first pilot resources described is measured:

Described measurement reporting information is sent to described base station.

13. methods according to claim 12, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

The identification information of Reference Signal Received Power and/or Reference Signal Received Quality measured value and/or the highest port of channel condition information; Or

Method for measuring pilot frequency in 14. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

P first pilot resources of base station configuration is measured respectively, P be not less than 2 integer; And

Report after described P the first pilot resources is measured.

15. methods according to claim 14, is characterized in that, report, comprising after described P the first pilot resources is measured:

Described measurement reporting information is sent to described base station.

16. methods according to claim 15, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

Pilot tone dispensing device in 17. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

18. devices according to claim 17, is characterized in that, also comprise:

19. devices according to claim 18, is characterized in that, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on all or part of port of at least one P port first pilot signal described.

20. devices according to claim 19, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

21. devices according to any one of claim 18 ~ 20, it is characterized in that, described base station is also configured with at least one second pilot resources,

Wherein, described device also comprises:

Pilot tone dispensing device in 22. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

3rd wave beam forming module, for carrying out wave beam forming to the pilot signal on P first pilot resources of base station configuration respectively, different first pilot resources adopts different wave beam formed matrixes, P be not less than 2 integer; And

23. devices according to claim 22, is characterized in that, also comprise:

24. devices according to claim 23, is characterized in that, the information of described user equipment to report is that described subscriber equipment generates according to the measurement result on described P the first pilot resources.

25. devices according to claim 24, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

26. devices according to any one of claim 23 ~ 25, it is characterized in that, described base station is also configured with at least one second pilot resources,

Wherein, described device also comprises:

Pilot measurement device in 27. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

28. devices according to claim 27, is characterized in that, described first measures reporting module according to the measurement result on the described all or part of port of at least one P port first pilot resources described, generates and measures reporting information; Described measurement reporting information is sent to described base station.

29. devices according to claim 28, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises:

Pilot measurement device in 30. 1 kinds of multi-input multi-output systems, is characterized in that, comprising:

31. devices according to claim 30, is characterized in that, described second measures reporting module according to the measurement result on described P the first pilot resources, generates and measures reporting information, and send described measurement reporting information to described base station.

32. devices according to claim 31, is characterized in that, described measurement result is Reference Signal Received Power and/or Reference Signal Received Quality and/or channel condition information measured value;

Wherein, described measurement reporting information comprises: