CN105634574B

CN105634574B - Transmit method, base station and the user equipment of pilot signal

Info

Publication number: CN105634574B
Application number: CN201610118682.5A
Authority: CN
Inventors: 杨晶; 张劲林
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-06-08
Filing date: 2013-06-08
Publication date: 2019-01-25
Anticipated expiration: 2033-06-08
Also published as: CN105634574A

Abstract

The embodiment of the invention provides method, base station and the user equipmenies of transmission pilot signal.This method comprises: determining m wave beam, and determine p port corresponding to m wave beam, wherein m and p is the positive integer greater than 1；By the port of q group, n pilot signal is sent to user equipment (UE), wherein it according to each group includes that n port carries out division acquisition that q group, which is by p port, and n and q are the positive integer greater than 1；I-th of port in each group is used to send i-th of pilot signal in n pilot signal, and 1≤i≤n, i are positive integer.In the embodiment of the present invention, by the way that the corresponding p port of m wave beam is divided into q group, and n pilot signal is sent to UE by the port of q group, wherein i-th of port in each group is used to send i-th of pilot signal in n pilot signal, so that the number of transmitted pilot signal is reduced, so as to save the expense of pilot signal.

Description

Transmit method, base station and the user equipment of pilot signal

The application is, is on June 8th, 2013, entitled " transmission application No. is the 201380000695.7, applying date The divisional application of the application for a patent for invention of method, base station and the user equipment of pilot signal ".

Technical field

The present invention relates to the communications fields, and in particular it relates to method, base station and the user equipment of transmission pilot signal.

Background technique

Theoretical analysis shows that number of antennas increases, channel capacity can also be increased with it, while increase transmitting terminal number of antennas Also better wave beam forming effect can be obtained, so the Radio Transmission Technology sent and received using more antennas, i.e. multi input Multi output (Multiple-Input and Multiple-Output, MIMO) technology, is always mobile communication field research One of mainstream technology.

Reference signal, that is, pilot signal are to be supplied to receiving end by transmitting terminal, by receiving end for channel estimation or A kind of known signal of channel measurement.The basic thought of pilot signal design is the corresponding pilot signal in each port at present, It is exactly that each antenna omnidirectional emits a pilot signal for this one-to-one mapping mode.

In MIMO technology, due to increasing for number of antennas, port number can also increase therewith, if led according to existing Frequency Design of Signal mode is the independent pilot signal of each port assignment, then the expense of pilot signal will be very big.

Summary of the invention

The embodiment of the present invention provides method, base station and the user equipment of transmission pilot signal, can save pilot signal Expense.

In a first aspect, providing a kind of method for transmitting pilot signal, comprising: determine m wave beam, and determine m described P port corresponding to wave beam, wherein m and p is the positive integer greater than 1；By the port of q group, n is sent to user equipment (UE) A pilot signal, wherein the q group be by the p port according to each group include n port carry out divide acquisition, n and Q is the positive integer greater than 1；Be used to send in the n pilot signal i-th of i-th of port in described each group is led Frequency signal, 1≤i≤n, i are positive integer.

With reference to first aspect, in the first possible implementation, further includes:, will according to the direction of the m wave beam The p port is divided into q group.

With reference to first aspect or the first possible implementation of first aspect, in second of possible implementation In, the determining m wave beam, comprising: in the way of antenna weighting, form the m wave beam.

The possible implementation of second with reference to first aspect, in the third possible implementation, the utilization The mode of antenna weighting forms the m wave beam, comprising: utilizes m weighted value, adds respectively to one group of same polarization antenna Power, forms the m wave beam.

The possible implementation of second with reference to first aspect, in the fourth possible implementation, the utilization The mode of antenna weighting forms the m wave beam, comprising: utilizes k weighted value, adds respectively to one group of same polarization antenna Power, k are the positive integer greater than 1；Using the first weighted value, the wave beam adjacent to any two in the k wave beam is weighted, Form m/2 wave beam；Using the second weighted value, the wave beam adjacent to any two in the k wave beam is weighted, and forms m/ 2 wave beams.

The possible implementation of second with reference to first aspect, in a fifth possible implementation, the utilization The mode of antenna weighting forms the m wave beam, comprising: utilize m/2 weighted value, respectively to first group of same polarization antenna into Row weighting, forms m/2 wave beam；Using the m/2 weighted value, second group of same polarization antenna is weighted respectively, is formed M/2 wave beam；Wherein, there are spacing between first group of same polarization antenna and second group of same polarization antenna.

With reference to first aspect or the first possible implementation of first aspect is into the 5th kind of possible implementation Any implementation in the port by the q group, sends n pilot tone to UE in a sixth possible implementation Before signal, further includes: determine that x kind pilot signal corresponding to the port of the q group configures, wherein each in the q group Group is divided into x subgroup, and each subgroup includes y port, and j-th of subgroup in each group is believed corresponding to the x kind pilot tone Number configuration in jth kind pilot signal configuration, the pilot signal be configured to indicate that pilot signal occupy running time-frequency resource, x With the positive integer that y is more than or equal to 1,1≤j≤x, j are positive integer；Signaling is sent to the UE, the signaling is for referring to Show the x kind pilot signal configuration.

The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation, further includes: from The UE receives metrical information, and the metrical information includes that the UE configures the time-frequency indicated respectively in the x kind pilot signal Obtained x measurement result is measured in resource；According to the uplink received power of the port of the metrical information and the q group, Determine the data transmission beam of the UE；Using the data transmission beam of the UE, data are sent to the UE.

The 7th kind of possible implementation with reference to first aspect, in the 8th kind of possible implementation, the basis The uplink received power of the port of the metrical information and the q group determines the data transmission beam of the UE, comprising: from institute It states and selects optimal measurement result in x measurement result, and determine the corresponding candidate subgroup of the optimal measurement result, it is described Candidate subgroup includes at least one subgroup；According to the uplink received power of the port of the q group, selected from the candidate subgroup The maximum subgroup of uplink received power；According to the optimal measurement result and the selected subgroup, institute is determined State the data transmission beam of UE.

The 7th kind of possible implementation or the 8th kind of possible implementation with reference to first aspect, in the 9th kind of possibility Implementation in, each measurement result in the x measurement result includes channel quality indicator (CQI)；Alternatively, described each Measurement result includes the CQI, and following at least one: order, pre-coding matrix instruction PMI.

With reference to first aspect or the first possible implementation of first aspect is into the 9th kind of possible implementation Any implementation, in the tenth kind of possible implementation, the pilot signal is channel state information reference signals CSI- RS。

Second aspect provides a kind of method for transmitting pilot signal, comprising: receives base station and is sent by the port of q group N pilot signal, wherein it includes n that the q group, which is the base station by p port corresponding to m wave beam according to each group, Port carries out dividing acquisition, and m and p are the positive integer greater than 1, and n and q are the positive integer greater than 1；In described each group I-th of port is used to send i-th of pilot signal in the n pilot signal, and 1≤i≤n, i are positive integer；To the n Pilot signal measures.

In conjunction with second aspect, in the first possible implementation, sent in the reception base station by the port of q group N pilot signal before, further includes: receive the signaling that the base station is sent, the signaling is used to indicate the port of the q group Corresponding x kind pilot signal configuration, wherein each group in the q group is divided into x subgroup, and each subgroup includes y Port, j-th of subgroup in each group corresponds to the jth kind pilot signal configuration in x kind pilot signal configuration, described to lead Frequency signal is configured to indicate that the running time-frequency resource that pilot signal occupies, and x and y are the positive integer more than or equal to 1,1≤j≤x, J is positive integer.

It is in the second possible implementation, described to institute in conjunction with the first possible implementation of second aspect It states n pilot signal to measure, comprising: to the n on the running time-frequency resource that x kind pilot signal configuration indicates respectively Pilot signal measures, and obtains x measurement result；

The method also includes: metrical information is sent to the base station, the metrical information includes the x measurement knot Fruit.

In conjunction with second of possible implementation of second aspect, in the third possible implementation, further includes: logical Data transmission beam is crossed, the data that the base station is sent are received, wherein the data transmission beam is the base station according to What the uplink received power of the port of metrical information and the q group determined.

In conjunction with second of the possible implementation or the third possible implementation of second aspect, in the 4th kind of possibility Implementation in, each measurement result in the x measurement result includes channel quality indicator (CQI)；Alternatively, described each Measurement result includes the CQI, and following at least one: order, pre-coding matrix instruction PMI.

In conjunction with the possible implementation of the first of second aspect or second aspect into the 4th kind of possible implementation Any implementation, in a fifth possible implementation, the pilot signal are channel state information reference signals CSI- RS。

The third aspect provides a kind of base station, comprising: determination unit for determining m wave beam, and determines the m wave P port corresponding to beam, wherein m and p is the positive integer greater than 1；Transmission unit, for the port by q group, to user Equipment UE sends n pilot signal, wherein it according to each group includes that n port is drawn that the q group, which is by the p port, It separately wins, n and q are the positive integer greater than 1；I-th of port in described each group is for sending the n pilot signal In i-th of pilot signal, 1≤i≤n, i are positive integer.

In conjunction with the third aspect, in the first possible implementation, further includes: grouped element, for according to the m The p port is divided into q group by the direction of wave beam.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in second of possible implementation In, the determination unit is specifically used in the way of antenna weighting, forms the m wave beam.

In conjunction with second of possible implementation of the third aspect, in the third possible implementation, the determination Unit is specifically used for utilizing m weighted value, is weighted respectively to one group of same polarization antenna, forms the m wave beam.

In conjunction with second of possible implementation of the third aspect, in the fourth possible implementation, the determination Unit utilizes k weighted value, is weighted respectively to one group of same polarization antenna, forms k wave beam, and k is the positive integer greater than 1； Using the first weighted value, the wave beam adjacent to any two in the k wave beam is weighted, and forms m/2 wave beam；Utilize Two weighted values, the wave beam adjacent to any two in the k wave beam are weighted, and form m/2 wave beam.

In conjunction with second of possible implementation of the third aspect, in a fifth possible implementation, the determination Unit is specifically used for utilizing m/2 weighted value, is weighted respectively to first group of same polarization antenna, forms m/2 wave beam；It utilizes The m/2 weighted value is respectively weighted second group of same polarization antenna, forms m/2 wave beam；Wherein, described first group There are spacing between same polarization antenna and second group of same polarization antenna.

In conjunction with the possible implementation of the first of the third aspect or the third aspect to the 5th kind of possible implementation, In 6th kind of possible implementation, the determination unit is also used to send by the port of q group to UE in the transmission unit Before n pilot signal, determine that x kind pilot signal corresponding to the port of the q group configures, wherein each in the q group Group is divided into x subgroup, and each subgroup includes y port, and j-th of subgroup in each group is believed corresponding to the x kind pilot tone Number configuration in jth kind pilot signal configuration, the pilot signal be configured to indicate that pilot signal occupy running time-frequency resource, x With the positive integer that y is more than or equal to 1,1≤j≤x, j are positive integer；The transmission unit is also used to send to the UE Signaling, the signaling are used to indicate the x kind pilot signal configuration.

The 6th kind of possible implementation in conjunction with the third aspect further includes connecing in the 7th kind of possible implementation Receive unit；The receiving unit, for receiving metrical information from the UE, the metrical information includes the UE in the x kind Obtained x measurement result is measured on the running time-frequency resource that pilot signal configuration indicates respectively；The determination unit, is also used to root According to the uplink received power of the port of the received metrical information of the receiving unit and the q group, determine that the data of the UE pass Defeated wave beam；The transmission unit is also used to the data transmission beam using the UE, sends data to the UE.

In conjunction with the 7th kind of possible implementation of the third aspect, in the 8th kind of possible implementation, the determination Unit is specifically used for: selecting optimal measurement result from the x measurement result, and determines the optimal measurement result pair The candidate subgroup answered, candidate's subgroup includes at least one subgroup；According to the uplink received power of the port of the q group, from The maximum subgroup of uplink received power is selected in candidate's subgroup；According to the optimal measurement result and the selection A subgroup, determine the data transmission beam of the UE.

Fourth aspect provides a kind of user equipment, comprising: receiving unit is sent out for receiving base station by the port of q group The n pilot signal sent, wherein it by p port corresponding to m wave beam includes n according to each group that the q group, which is the base station, A port carries out dividing acquisition, and m and p are the positive integer greater than 1, and n and q are the positive integer greater than 1；In described each group I-th of port be used to send i-th of pilot signal in the n pilot signal, 1≤i≤n, i are positive integer；Measurement is single Member, for being measured to the received n pilot signal of the receiving unit.

In conjunction with fourth aspect, in the first possible implementation, the receiving unit is also used to logical in reception base station It crosses before the n pilot signal of port transmission of q group, receives the signaling that the base station is sent, the signaling is used to indicate the q The configuration of x kind pilot signal corresponding to the port of group, wherein each group in the q group is divided into x subgroup, every height Group includes y port, and the jth kind pilot signal that j-th of subgroup in each group corresponds in x kind pilot signal configuration is matched It sets, the pilot signal is configured to indicate that the running time-frequency resource that pilot signal occupies, and x and y are just whole more than or equal to 1 Number, 1≤j≤x, j are positive integer.

It further include hair in the second possible implementation in conjunction with the first possible implementation of fourth aspect Send unit；The measuring unit, specifically for configuring on the running time-frequency resource indicated respectively in the x kind pilot signal to the n A pilot signal measures, and obtains x measurement result；The transmission unit, for sending metrical information, institute to the base station Stating metrical information includes the x measurement result.

In conjunction with second of possible implementation of fourth aspect, in the third possible implementation, the reception Unit is also used to receive the data that the base station is sent by data transmission beam, wherein the data transmission beam is described Base station is determined according to the uplink received power of the port of the metrical information and the q group.

In the embodiment of the present invention, by the way that the corresponding p port of m wave beam is divided into q group, and by the port of q group to UE N pilot signal is sent, wherein i-th of port in each group is used to send i-th of pilot signal in n pilot signal, So that the number of transmitted pilot signal is reduced, so as to save the expense of pilot signal.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Fig. 1 is the schematic flow chart of the method for transmission pilot signal according to an embodiment of the invention.

Fig. 2 is can be using the schematic diagram of an example of the scene of the embodiment of the present invention.

Fig. 3 is can be using the schematic diagram of another example of the scene of the embodiment of the present invention.

Fig. 4 is can be using the schematic diagram of another example of the scene of the embodiment of the present invention.

Fig. 5 is the schematic flow chart of the method for transmission pilot signal according to another embodiment of the present invention.

Fig. 6 is the schematic block diagram of base station according to an embodiment of the invention.

Fig. 7 is the schematic block diagram of UE according to an embodiment of the invention.

Fig. 8 is the schematic block diagram of base station according to another embodiment of the present invention.

Fig. 9 is the schematic block diagram of UE according to another embodiment of the present invention.

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 carries out clear, complete Site preparation description, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, those of ordinary skill in the art's every other reality obtained without making creative work Example is applied, all should belong to the scope of protection of the invention.

Technical solution of the present invention can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access Wireless, WCDMA), General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) etc..

User equipment (User Equipment, UE), also referred to as mobile terminal (Mobile Terminal, MT) move Dynamic user equipment etc., can be through wireless access network (for example, Radio Access Network, RAN) and one or more cores Net is communicated, and user equipment can be mobile terminal, such as mobile phone (or being " honeycomb " phone) and with mobile terminal Computer, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device.

Base station can be the base station (Base Transceiver Station, BTS) in GSM or CDMA, be also possible to Base station (NodeB) in WCDMA can also be the evolved base station (evolved Node B, eNB or e-NodeB) in LTE, The present invention does not limit.

Fig. 1 is the schematic flow chart of the method for transmission pilot signal according to an embodiment of the invention.The method of Fig. 1 It is executed by base station.

110, determine m wave beam, and determine p port corresponding to m wave beam, wherein m and p is just whole greater than 1 Number.

For example, base station can form m wave beam by way of weighting.M wave beam can be respectively provided with different directions. For example, base station can be formed by antenna weighting mode in active antenna system (Active Antenna System, AAS) The m wave beams being differently directed.

Each wave beam can correspond to one or more ports.For example, in the case where antenna is single-polarized antenna, Mei Gebo Beam can correspond to 1 port, then m wave beam can correspond to m port.In the case where antenna is cross polarised antenna, Each wave beam can correspond to 2 ports, then m wave beam can correspond to m × 2 port.

120, by the port of q group, n pilot signal is sent to UE, wherein q group is by p port according to each group of packet It includes n port to carry out dividing acquisition, n and q are the positive integer greater than 1；I-th of port in each group is for sending n I-th of pilot signal in pilot signal, 1≤i≤n, i are positive integer.

For example, base station can be grouped p port according to the direction of m wave beam, so that between each group spatially It is staggered.For example, every n adjacent ports can be divided into one group by base station.It should be understood that p port is divided in base station herein Group is substantially also to be grouped to m wave beam.For example, it is assumed that have 16 wave beams, corresponding 2 ports of each wave beam, then 16 A wave beam corresponds to 32 ports.Every 8 adjacent ports can be divided into one group by base station, so as to obtain 4 groups of ports. It is, since each wave beam can correspond to 2 ports, it can thus be understood that every 4 adjacent wave beams are divided by base station One group.

In each group port, the 1st port is used to send the 1st pilot signal；2nd port is used to send the 2nd A pilot signal, and so on.

From the foregoing, it can be seen that if using existing pilot signal design mode, i.e., each one pilot signal of port mapping, So for p port, base station needs to send p pilot signal to UE.And in the embodiment of the present invention, base station can be to p A port obtains q group port after being grouped, wherein every group of port includes n port.N and q is just whole greater than 1 herein Number, therefore n is less than p.Then base station can send n pilot signal to UE by q group port, i-th of end in every group of port Mouth is for sending i-th of pilot signal in n pilot signal, so that the number of pilot signal is reduced, so that pilot tone is believed Number occupy running time-frequency resource reduce, so as to save the expense of pilot signal.

Optionally, as one embodiment, pilot signal may include channel state information reference signals (Channel State Information-Reference Signal, CSI-RS).

Pilot signal can also include other pilot signals for being only used for channel measurement.Since this pilot signal is only used for Channel measurement, such as CSI-RS, therefore base station is sent without omnidirectional.Moreover, because there are space interval between m wave beam, because This, base station can be by way of space division multiplexing, to UE pilot signal transmitted.

Optionally, as one embodiment, before step 120, base station can be held p according to the direction of m wave beam Mouth is divided into q group.

For example, p port can be divided into q group by base station, so that the space interval between each group is remote enough.Between each group Space interval can determine according to actual needs, such as can be determined according to the expense of transmission performance and pilot signal.

Optionally, as another embodiment, in step 110, base station can use the mode of antenna weighting, form m Wave beam.

Optionally, as another embodiment, base station can use m weighted value and add respectively to one group of same polarization antenna Power forms m wave beam.There are a fixed spacings, such as 0.5 times of wavelength between this group of same polarization antenna.

Optionally, as another embodiment, base station can use k weighted value, carry out respectively to one group of same polarization antenna Weighting, forms k wave beam, and k is the positive integer greater than 1.Base station can use the first weighted value, to any two in k wave beam Adjacent wave beam is weighted, and forms m/2 wave beam.Base station can use the second weighted value, to any two phase in k wave beam Adjacent wave beam is weighted, and forms m/2 wave beam.

For example, it is assumed that base station in the way of antenna weighting, forms 5 wave beams.Base station can use weighted value W1, to 5 Every two adjacent wave beam is weighted in a wave beam, to form 4 wave beams.Base station can use weighted value W2, to 5 wave beams In every two adjacent wave beam be weighted, to form other 4 wave beams.In this way, base station is assured that out 8 wave beams.

Optionally, as another embodiment, base station can use m/2 weighted value, respectively to first group of same polarization antenna It is weighted, forms m/2 wave beam.Base station can use m/2 above-mentioned weighted value, respectively to second group of same polarization antenna into Row weighting, forms m/2 wave beam.Wherein, there are spacing between first group of same polarization antenna and second group of same polarization antenna.

For example, it is assumed that m is 8, and assume there are 16 cross polarised antennas, there are 8 antennas in each polarization direction.It is wherein same There are a fixed spacings between poliarizing antenna, for example can be half-wavelength.8 antennas of horizontal polarization directions can be divided by base station Two groups: preceding 4 antennas being divided into one group, i.e. first group of same polarization antenna, rear 4 antennas are divided into one group, i.e. second group of homopolarity Change antenna.Spacing between so first group of same polarization antenna and second group of same polarization antenna is 2 times of wavelength.In this way, base station can To utilize 4 weighted values W1, W2, W3 and W4 respectively to first group of same polarization antenna weighting, to form 4 wave beams.It base station can With to above-mentioned 4 weighted values W1, W2, W3 and W4 respectively to second group of same polarization antenna weighting, to form other 4 waves Beam.In this way, base station is assured that out 8 wave beams.Due between first group of same polarization antenna and second group of same polarization antenna Interval is 2 times of wavelength, then to first group of same polarization antenna weighting formed 4 wave beams with to second group of same polarization antenna weighting The interval between 4 wave beams formed is also 2 times of wavelength.

In the present embodiment, since there are spacing, energy between first group of same polarization antenna and second group of same polarization antenna It is enough to be distinguished by the spacing between antenna to m/2 wave beam of first group of same polarization antenna weighting formation and to second group of homopolarity Change the m/2 wave beam that antenna weighting is formed, so that the embodiment of the present invention is suitable for the scene of more extensive antenna.

Optionally, as another embodiment, before step 120, base station can determine x kind corresponding to the port of q group Pilot signal configuration, wherein each group in q group is divided into x subgroup, and each subgroup includes y port, and the in each group J subgroup corresponds to the jth kind pilot signal configuration in the configuration of x kind pilot signal, and pilot signal is configured to indicate that pilot tone is believed Number running time-frequency resource occupied, x and y are the positive integer more than or equal to 1, and 1≤j≤x, j are positive integer.Base station can be sent out to UE It delivers letters order, which can serve to indicate that x kind pilot signal configures.

Specifically, each group in above-mentioned q group can also be further divided into x subgroup.It is, the n in each group A port is divided into x subgroup.Each subgroup includes y port.It is divided into x subgroup due to every group, then base station It can determine that q group port is configured corresponding to x kind pilot signal.Wherein the value of x can be less than pilot signal configuration in agreement Sum.

The jth kind pilot signal that j-th of subgroup in each group can correspond in the x kind pilot signal configuration is matched It sets.That is, the 1st subgroup both corresponds to the 1st kind of pilot signal configuration in each group port；2nd subgroup both corresponds to the 2nd kind Pilot signal configuration；And so on.Therefore, in each group of port, the port of different subgroups corresponds respectively to different pilot tones Signal configuration, so that the pilot signal sent on the port of different subgroup occupies different running time-frequency resources, convenient for UE to leading Frequency signal measures.

For example, it is assumed that base station determines 16 wave beams, corresponding 2 ports of each wave beam in step 110.It base station can be by 32 A port is divided into 4 groups, and every group has 8 ports.Further, every group of 8 ports can be divided into 4 subgroups by base station.Each Subgroup includes 2 ports.Since every group of 8 ports are divided into 4 subgroups, then base station can determine that 4 subgroup ports are corresponding It is configured in 4 kinds of pilot signals.Wherein, in each group port, the 1st subgroup both corresponds to the 1st kind of pilot signal and configures, and the 2nd Subgroup both corresponds to the 2nd kind of pilot signal configuration, and the 3rd subgroup both corresponds to the 3rd kind of pilot signal configuration, and the 4th subgroup is equal It is configured corresponding to the 4th kind of pilot signal.

Further, as another embodiment, after step 120, base station can receive metrical information, measurement letter from UE Breath includes the x measurement result that UE is measured on the running time-frequency resource that the configuration of x kind pilot signal indicates respectively.It base station can root According to the uplink received power of the port of metrical information and q group, the data transmission beam of UE is determined.Base station can use the data of UE Transmission beam sends data to UE.

UE can configure measurement pilot signals on indicated running time-frequency resource in every kind of pilot signal, to obtain x survey Measure result.Base station can be based on these measurement results, determine the data transmission beam of UE.

Optionally, as another embodiment, base station can select optimal measurement result from x measurement result, and really Candidate subgroup corresponding to fixed optimal measurement result.Base station can select maximum one group of uplink received power from q group.Base Standing can determine that the data of UE pass according to optimal measurement result, candidate subgroup and maximum one group of the uplink received power Defeated wave beam.

Optionally, as another embodiment, base station can select optimal measurement result from x measurement result, and really Candidate subgroup corresponding to fixed optimal measurement result, candidate's subgroup include at least one subgroup.It base station can be according to q group The uplink received power of port selects the maximum subgroup of uplink received power from candidate subgroup.It base station can be according to most One subgroup of excellent measurement result and above-mentioned selection, determines the data transmission beam of UE.

Optionally, as another embodiment, each measurement result in x measurement result includes channel quality instruction (Channel Quality Indication, CQI).

Optionally, as another embodiment, each measurement result may include CQI, and comprise at least one of the following: order (rank), pre-coding matrix instruction (Precoding Matrix Indicator, PMI).For example, UE can be according to transmission mould Formula, it is determined whether in the measurement results include order or PMI.

Specifically, base station can select optimal measurement result from x measurement result, for example, base station can be to each CQI in measurement result is compared, and determines optimal CQI, so that it is determined that optimal measurement result.It base station can be according to optimal Measurement result, the configuration of candidate pilot corresponding to optimal measurement result is determined in the configuration of x kind pilot signal, thus It can determine candidate subgroup corresponding to optimal measurement result.Since every kind of pilot signal configuration can correspond to multiple sons Group, therefore candidate subgroup herein may include multiple subgroups.

From the foregoing, multiple ports can send identical pilot signal.For example, the 1st port in each group port is equal For sending the 1st pilot signal.Therefore, it on a kind of indicated running time-frequency resource of pilot signal configuration, is led measured by UE Frequency signal is substantially the signal that the pilot signal of multiple ports transmissions is superimposed.Therefore, optimal measurement is being selected As a result and after corresponding candidate subgroup, base station can not also determine data transmission beam.It base station can be according to each group end in q group The uplink received power of mouth selects a group in q group.For example, the above-mentioned p port due to base station receives uplink detection (sounding) reference signal, then base station can compare the uplink received power of the port of each group in q group, thus in q group Select the maximum group of uplink received power.Then, base station can be according to optimal measurement result, candidate subgroup and above-mentioned Wave beam corresponding to maximum one group of uplink received power, determines data transmission beam.For example, base station can determine candidate subgroup In belong to a subgroup of this maximum group of uplink received power.Then base station can use in optimal measurement result Wave beam corresponding to a subgroup of the PMI to above-mentioned determination is weighted, so that it is determined that data transmission beam.Base station can also be from The maximum subgroup of uplink received power is selected in above-mentioned candidate's subgroup.Then base station can use in optimal measurement result A subgroup of the PMI to above-mentioned selection corresponding to wave beam be weighted, so that it is determined that data transmission beam.

In the case where the port of a subgroup of above-mentioned determination corresponds to multiple wave beams, using in optimal measurement result PMI multiple wave beams corresponding to the subgroup be weighted, and PMI is variation, therefore is capable of forming richer data and passes Defeated wave beam.

Base station can use the data transmission beam to UE and send data after determining the data transmission beam of UE.UE can To receive data by the data transmission beam, and user's DRS (Dedicated Reference Signal) (UE-specific Reference can be passed through Signal, UE-specific RS) solution adjusting data.

Below in conjunction with specific example the present invention is described in detail embodiment.It should be understood that these examples are intended merely to help this Field technical staff more fully understands the embodiment of the present invention, the range for the embodiment that is not intended to limit the present invention.

In FIG. 2, it is assumed that there are 32 cross polarised antennas, there are 16 antennas in each polarization direction.Base station can use The mode of antenna weighting forms 16 wave beams, as shown in Fig. 2, this 16 wave beams can be expressed as wave beam 0 to wave beam 15.Wherein, Each wave beam corresponds to 2 ports.Therefore, 16 wave beams correspond to 32 ports.

32 ports can be divided into 4 groups by base station, and every 8 adjacent ports are divided into one group.It is, base station can be by 16 A wave beam is divided into 4 groups, and every 4 adjacent wave beams are one group.That is, as shown in Fig. 2, this 4 groups can be expressed as group 0, group 1, group 2 and group 3.

Following description for convenience, the port of each group, which can be used, is identically numbered expression.Specifically, as shown in Fig. 2, In group 0, it is 0 to 7 that wave beam 0 can be numbered to the corresponding port of wave beam 3.In group 1, wave beam 4 to the corresponding port of wave beam 7 Can number is 0 to 7.In group 2, it is 0 to 7 that wave beam 8 can also be numbered to the corresponding port of wave beam 11.In group 3, wave beam 12 Can also number to the corresponding port of wave beam 15 is 0 to 7.

In every group of port, each port can be used for sending different pilot signals.In each group port, number identical Port can be used for sending identical pilot signal.Specifically, the port 0 in group 0, the port 0 in group 1, the port in group 2 0 is used to send the 1st pilot signal with the port 0 in group 3；Port 1 in group 0, the port 1 in group 1, the port 1 in group 2 It is used to send the 2nd pilot signal with the port 1 in group 3；And so on.As it can be seen that base station can be sent out by 4 groups of ports to UE Send 8 pilot signals.

Optionally, each group port can be divided with further progress.I.e. every group can also be divided into 4 subgroups, each It may include 2 ports in subgroup.So 4 groups of ports can be further subdivided into 16 subgroups.It is following for convenience Description, in group 0 into group 3, subgroup can be numbered independently, i.e., each subgroup in different groups, which can be used, to be identically numbered It indicates.As shown in Fig. 2, can to number be 0 to 3 to 4 subgroups in group 0, i.e. subgroup 0 to subgroup 3.4 subgroups in group 1 can also It is subgroup 0 to subgroup 3 with number.It is subgroup 0 to subgroup 3 that 4 subgroups in group 2, which can also number,.4 subgroups in group 3 Can number is subgroup 0 to subgroup 3.The subgroup that number is 0 in every group may include that the port for being 0 and 1 is numbered in the group, and every group The subgroup that middle number is 1 may include the port that number is 2 and 3 in the group, and the subgroup that number is 2 in every group may include the group Middle to number the port for being 4 and 5, the subgroup that number is 3 in every group may include the port that number is 6 and 7 in the group.For example, In group 0, subgroup 0 may include the port 0 and port 1 in group 0, and subgroup 1 may include the port 2 and port 3 in group 0, subgroup 2 It may include the port 4 and port 5 in group 0, subgroup 3 may include the port 6 and 7 in group 0.Other groups similar with group 0, no longer It repeats.

Every group is divided into 4 subgroups, then 16 subgroups can correspond to 4 kinds of pilot signal configurations.Pilot signal is matched The occupied running time-frequency resource of pilot signal can be indicated by setting.Specifically, the subgroup 0 in group 0, the subgroup 0 in group 1, the son in group 2 Subgroup 0 in group 0 and group 3 can correspond to the 1st kind of pilot signal configuration；Subgroup 1 in group 0, the subgroup 1 in group 1, group 2 In subgroup 1 and group 3 in subgroup 1 can correspond to the configuration of the 2nd kind of pilot signal；And so on.

UE can measure 8 pilot signals that base station is sent on the running time-frequency resource that 4 kinds of pilot signal configurations indicate respectively. As shown in Fig. 2, UE can measure base station in numbering identical subgroup on the running time-frequency resource of every kind of pilot signal configuration instruction Port on the pilot signal that sends.Specifically, UE can measure volume on the running time-frequency resource of the 1st kind of pilot signal configuration instruction Number for the pilot signal that sends on the port in 0 subgroup.That is, UE can be in the time-frequency money of the 1st kind of pilot signal configuration instruction 2 pilot signals that 2 pilot signals of measurement on source, i.e. base station are sent respectively on port 0 and port 1.

Similarly, UE can be measured on the running time-frequency resource of the 2nd kind of pilot signal configuration instruction in the subgroup that number is 1 The pilot signal sent on port.UE can measure the son that number is 2 on the running time-frequency resource of the 3rd kind of pilot signal configuration instruction The pilot signal sent on port in group.UE can measure number on the running time-frequency resource of the 4th kind of pilot signal configuration instruction For the pilot signal sent on the port in 3 subgroup.

In Fig. 2, UE can measure 2 pilot signals on the indicated running time-frequency resource of every kind of pilot signal configuration, often A pilot signal is substantially the signal numbering pilot signal transmitted on identical port between each group and being superimposed.Example Such as, on the indicated running time-frequency resource of the 1st kind of pilot signal configuration, 2 sent on 2 ports in UE measurement subgroup 0 are led Frequency signal, wherein 1 pilot signal is substantially that pilot signal transmitted on number is 0 in 4 groups of ports port is superimposed upon Signal together, another 1 pilot signal are substantially pilot signal superposition transmitted on number is 1 in 4 groups of ports port Signal together.

After UE is measured on the indicated running time-frequency resource of 4 kinds of pilot signal configurations respectively, available 4 measurement results. Each measurement result may include CQI.Each measurement result can also comprise at least one of the following: order, PMI.

Then, UE can send metrical information to base station, and metrical information may include this 4 measurement results.

Base station can determine data transmission beam, and send data to UE using data transmission beam according to metrical information. Specifically, base station can select optimal measurement result from 4 measurement results, and determine that this optimal measurement result is corresponding 4 subgroups.Then base station can select uplink receiving into group 3 from group 0 according to group 0 to 3 respective uplink received powers of group Prominent one group.For example, base station selected optimal measurement result is the time-frequency indicated in the 1st kind of pilot signal configuration Measurement obtains in resource.1st kind of pilot signal configuration can correspond to 4 subgroups that number is 0 into group 3 of group 0.Due to 32 A port can receive uplink detection reference signal, base station can with comparative group 0 to 3 respective uplink received powers of group, from And determine maximum one group of uplink received power, for example can be the uplink received power maximum of the port of group 1.So, base station 4 subgroups and group 1 for being 0 according to number, so that it may determine that wave beam 4 is used as data transmission beam.Then base station can use PMI is weighted wave beam 4, so that it is determined that data transmission beam.

In fig. 3, it is assumed that there are 16 cross polarised antennas, there are 8 antennas in each polarization direction.Base station can use day The mode of line weighting, forms 5 wave beams, as shown in figure 3, this 5 wave beams can be expressed as wave beam 00 to wave beam 04.

Base station can use weighted value W1, is weighted to every two adjacent wave beam in 5 wave beams, obtains 4 wave beams. Specifically, base station can use weighted value W1 and be weighted to obtain wave beam 10 to wave beam 00 and wave beam 01, utilize W1 pairs of weighted value Wave beam 01 and wave beam 02 are weighted to obtain wave beam 12, and so on.Can be obtained by 4 wave beams in this way, respectively wave beam 10, 12,14 and 16.

Base station can use weighted value W2, is weighted to every two adjacent wave beam in 5 wave beams, obtains other 4 Wave beam.Specifically, base station can use weighted value W2 and be weighted to obtain wave beam 11 to wave beam 00 and wave beam 01, utilize weighted value W2 is weighted to obtain wave beam 13 to wave beam 01 and wave beam 02, and so on.It can be obtained by other 4 wave beams in this way, respectively For wave beam 11,13,15 and 17.

Wherein for wave beam 10 into wave beam 17, each wave beam corresponds to 2 ports.Therefore 8 wave beams can correspond to 16 Port.

16 ports can be divided into 2 groups by base station, and every 8 adjacent ports are divided into one group.Namely base station is by 8 wave beams It is divided into 2 groups, every group there are 4 wave beams.As shown in figure 3, this 2 groups can be expressed as group 0 and group 1.

Similar to the embodiment of Fig. 2, for ease of description, the port of each group, which can be used, is identically numbered expression.Specifically Ground, as shown in figure 3, it is 0 to 7 that wave beam 10 can be numbered to the corresponding port of wave beam 13 in group 0.Group 1 in, wave beam 14 to It is 0 to 7 that the corresponding port of wave beam 17, which can also number,.

In every group of port, each port can be used for sending different pilot signals.Between each group, identical end is numbered Mouth can be used for sending identical pilot signal.Specifically, the port 0 in the port 0 and group 1 in group 0 is used to send the 1st Pilot signal；The port 1 in port 1 and group 1 in group 0 is used to send the 2nd pilot signal；And so on.As it can be seen that base station 8 pilot signals can be sent to UE by 2 groups of ports.

It is still similar to the embodiment of Fig. 2.Each group port can be divided with further progress.I.e. every group can also be divided It may include 4 ports in each subgroup for 2 subgroups.So 2 groups of ports can be further subdivided into 4 subgroups.For Description below convenience can be used between each subgroup in group 0 and group 1 and be identically numbered expression.As shown in figure 3, group It is 0 and 1, i.e. subgroup 0 and subgroup 1 that 2 subgroups in 0, which can number,.It is subgroup 0 and son that 2 subgroups in group 1, which can also number, Group 1.The subgroup that number is 0 in every group may include the port that number is 0 to 3 in the group, and the subgroup that number is 1 in every group can be with Including the port that number is 4 to 7 in the group.For example, subgroup 0 may include port 0, port 1, port 2 in group 0 in group 0 With port 3, subgroup 1 may include port 4, port 5, port 6 and the port 7 in group 0.Group 1 is similar with group 0, repeats no more.

Every group is divided into 2 subgroups, then 4 subgroups can correspond to 2 kinds of pilot signal configurations.Pilot signal configuration It can indicate the occupied running time-frequency resource of pilot signal.Specifically, the subgroup 0 in the subgroup 0 and group 1 in group 0 can correspond to It is configured in the 1st kind of pilot signal；The subgroup 1 in subgroup 1 and group 1 in group 0 can correspond to the 2nd kind of pilot signal configuration.

Below by the appropriate description for omitting similar procedure in the embodiment with Fig. 2.UE can be in 2 kinds of pilot signal configurations point 8 pilot signals that base station is sent are measured on the running time-frequency resource not indicated, to obtain 2 measurement results.It then can be to base It stands and sends metrical information, metrical information may include this 2 measurement results.

Base station can select optimal measurement result from 2 measurement results, and determine 2 corresponding to optimal measurement result A subgroup.Then base station can select uplink received power most from two groups according to 1 respective uplink received power of group 0 and group Big one group.Base station, which can determine in corresponding 2 subgroups of optimal measurement result, belongs to that maximum group of uplink received power A subgroup.For example, it is assumed that optimal measurement result is measured on the indicated running time-frequency resource of the 2nd kind of pilot signal configuration It obtains.2nd kind of pilot signal configuration corresponds to 2 subgroups that number is 1.And the uplink received power for organizing 1 port is maximum, So base station can determine candidate data transmission beam, that is, organize subgroup 1 corresponding 2 wave beam, i.e. wave beam 16 and wave beam in 1 17.Base station can use the PMI in optimal measurement result and be weighted to wave beam 16 and wave beam 17, may thereby determine that data Transmission beam.In the present embodiment, since PMI is variation, then base station weights the data transmission beam to be formed based on PMI It is variation, therefore is capable of forming richer data transmission beam.

In fig. 4, it is assumed that there are 16 cross polarised antennas, there are 8 antennas in each polarization direction, as shown in figure 4,16 It is 0 to 15 that antenna can number respectively.There are a fixed spacings between two adjacent same polarization antennas, for example can be half-wave Long, i.e. 0.5 λ, wherein λ can indicate wavelength.

Same polarization antenna can be divided into 2 groups by base station, and first group of same polarization antenna may include antenna 0,2,4 and 6, and second Group same polarization antenna may include antenna 8,10,12 and 14.Base station can use 4 weighted values respectively to first group of same polarization day Line weighting, i.e., be respectively weighted antenna 0,2,4 and 6 using weighted value W1, W2, W3 and W4, so that 4 wave beams are formed, point It Wei not wave beam A, B, C and D.Base station can be utilized respectively above-mentioned 4 weighted values to second group of same polarization antenna weighting, that is, utilize and add Weight W1, W2, W3 and W4 are respectively weighted antenna 8,10,12 and 14, to form other 4 wave beams, respectively wave beam E, F, G and H.As it can be seen that since the spacing between first group of same polarization antenna and second group of same polarization antenna is 2 λ, then wave beam A To D and wave beam E to the spacing between H be 2 λ.

In wave beam A into wave beam H, each wave beam corresponds to 2 ports, therefore 8 wave beams can correspond to 16 ports.

16 ports can be divided into 2 groups by base station, this 2 groups are expressed as group 0 and group 1.Group 0 include wave beam A, wave beam B, Corresponding 8 ports wave beam E and wave beam F, group 1 include wave beam C, wave beam D, wave beam G and corresponding 8 ends wave beam H Mouthful.

Similar to the embodiment of Fig. 2 and Fig. 3, for ease of description, the port of each group, which can be used, is identically numbered expression. Specifically, as shown in figure 4, in group 0, the corresponding port numbering of wave beam A is 0 and 1, and it is 2 that the corresponding port wave beam E, which can number, With 3, it is 4 and 5 that the corresponding port wave beam B, which can number, and it is 6 and 7 that the corresponding port wave beam F, which can number,.In group 1, wave beam C It is 0 and 1 that corresponding port, which can number, and it is 2 and 3 that the corresponding port wave beam G, which can number, and the corresponding port wave beam D can compile Number be 4 and 5, it is 6 and 7 that the corresponding port wave beam H, which can number,.

Below by the appropriate description omitted with similar procedure in Fig. 2 and Fig. 3.In every group of port, each port can be used for Send different pilot signals.Between each group, numbering identical port can be used for sending identical pilot signal.Therefore, Base station can send 8 pilot signals to UE by 2 groups of ports.

It is still similar to the embodiment of Fig. 2 and Fig. 3.Each group port can be divided with further progress.I.e. every group can be with 2 subgroups are divided into, may include 4 ports in each subgroup.So 2 groups of ports can be further subdivided into 4 Subgroup.Following description for convenience can be used between each subgroup in group 0 and group 1 and be identically numbered expression.Such as Fig. 4 Shown, it is 0 and 1, i.e. subgroup 0 and subgroup 1 that 2 subgroups in group 0, which can number,.It is son that 2 subgroups in group 1, which can also number, Group 0 and subgroup 1.The subgroup that number is 0 in every group may include the port that number is 0 to 3 in the group, and number is 1 in every group Subgroup may include the port that number is 4 to 7 in the group.For example, subgroup 0 may include port 0, end in group 0 in group 0 Mouth 1, port 2 and port 3, subgroup 1 may include port 4, port 5, port 6 and the port 7 in group 0.Group 1 is similar with group 0, no It repeats again.

UE can measure 8 pilot signals that base station is sent on the running time-frequency resource that 2 kinds of pilot signal configurations indicate respectively, To obtain 2 measurement results.Then metrical information can be sent to base station, metrical information may include this 2 measurement results.

Base station can select optimal measurement result from 2 measurement results, and determine 2 corresponding to optimal measurement result A subgroup.Then base station can select uplink received power most from two groups according to 1 respective uplink received power of group 0 and group Big one group.Base station, which can determine in corresponding 2 subgroups of optimal measurement result, belongs to that maximum group of uplink received power A subgroup.For example, it is assumed that optimal measurement result is surveyed on the indicated running time-frequency resource of the 2nd kind of pilot signal configuration It measures.2nd kind of pilot signal configuration corresponds to 2 subgroups that number is 1.And organize the uplink received power of 1 port most Greatly, then base station can determine candidate data transmission beam, that is, subgroup 1 corresponding 2 wave beam, i.e. wave beam D and wave in 1 are organized Beam H.Base station can use the PMI in optimal measurement result and be weighted to wave beam D and wave beam H, may thereby determine that data Transmission beam.In the present embodiment, since PMI is variation, then base station weights the data transmission beam to be formed based on PMI It is variation, therefore is capable of forming richer data transmission beam.

Fig. 5 is the schematic flow chart of the method for transmission pilot signal according to another embodiment of the present invention.The method of Fig. 5 It is executed by UE.

510, it receives base station and passes through n pilot signal of the port of q group transmission, wherein q group is base station by m wave beam institute Corresponding p port includes that n port carries out dividing acquisition according to each group, and m and p are the positive integer greater than 1, and n and q are equal For the positive integer greater than 1；I-th of port in each group is used to send i-th of pilot signal in n pilot signal, 1≤i ≤ n, i are positive integer.

520, n pilot signal is measured.

In the embodiment of the present invention, the n pilot signal sent by receiving base station by the port of q group, wherein each group In i-th of port be used to send i-th of pilot signal in n pilot signal so that the number of pilot signal is reduced, thus The expense of pilot signal can be saved.

Optionally, as one embodiment, before step 510, UE can receive the signaling of base station transmission, which uses The configuration of the x kind pilot signal corresponding to the port of instruction q group, wherein each group in q group is divided into x subgroup, each Subgroup includes y port, and the jth kind pilot signal that j-th of subgroup in each group corresponds in the configuration of x kind pilot signal is matched It sets, pilot signal is configured to indicate that the running time-frequency resource that pilot signal occupies, and x and y are the positive integer more than or equal to 1,1≤ J≤x, j are positive integer.

Optionally, as another embodiment, in step 520, UE can be when x kind pilot signal be configured and is indicated respectively N pilot signal is measured in frequency resource, obtains x measurement result.After step 520, UE can be sent to base station Metrical information, metrical information include x measurement result.

Optionally, as another embodiment, UE can receive the data that base station is sent by data transmission beam, wherein Data transmission beam is that base station is determined according to the uplink received power of the port of metrical information and q group.

Optionally, as another embodiment, each measurement result in x measurement result may include CQI.Alternatively, every A measurement result may include CQI, and following at least one: order, PMI.

Optionally, as another embodiment, pilot signal can be CSI-RS.

Fig. 6 is the schematic block diagram of base station according to an embodiment of the invention.The base station 600 of Fig. 6 includes determination unit 610 With transmission unit 620.

Determination unit 610 determines m wave beam, and determines p port corresponding to m wave beam, and wherein m and p is greater than 1 Positive integer.Transmission unit 620 sends n pilot signal by the port of q group, to UE, wherein q group be by p port according to Each group includes that n port carries out dividing acquisition, and n and q are the positive integer greater than 1；I-th of port in each group is used for I-th of pilot signal in n pilot signal is sent, 1≤i≤n, i are positive integer.

Optionally, as one embodiment, base station 600 can also include grouped element 630.Grouped element 630 can root According to the direction of m wave beam, p port is divided into q group.

Optionally, as another embodiment, determination unit 610 can use the mode of antenna weighting, form m wave beam.

Optionally, as another embodiment, determination unit 610 can use m weighted value, respectively to one group of same polarization day Line is weighted, and forms m wave beam.

Optionally, as another embodiment, determination unit 610 can use k weighted value, respectively to one group of same polarization day Line is weighted, and forms k wave beam, and k is the positive integer greater than 1, can use the first weighted value, in k wave beam any two A adjacent wave beam is weighted, and m/2 wave beam is formed, and can use the second weighted value, to any two phase in k wave beam Adjacent wave beam is weighted, and forms m/2 wave beam.

Optionally, as another embodiment, determination unit 610 can use m/2 weighted value, respectively to first group of homopolarity Change antenna to be weighted, forms m/2 wave beam；Using m/2 weighted value, second group of same polarization antenna is weighted respectively, Form m/2 wave beam；Wherein, there are spacing between first group of same polarization antenna and second group of same polarization antenna.

Optionally, as another embodiment, determination unit 610 can also in transmission unit 620 by the port of q group, to Before UE sends n pilot signal, determine that x kind pilot signal corresponding to the port of q group configures, wherein each group in q group It is divided into x subgroup, each subgroup includes y port, and j-th of subgroup in each group is configured corresponding to x kind pilot signal In jth kind pilot signal configuration, pilot signal be configured to indicate that pilot signal occupy running time-frequency resource, x and y are to be greater than Or the positive integer equal to 1,1≤j≤x, j are positive integer.Transmission unit 620 can also send signaling to UE, and the signaling is for referring to Show that x kind pilot signal configures.

Optionally, as another embodiment, base station 600 can also include receiving unit 640.Receiving unit 640 can be from UE receives metrical information, and metrical information includes obtained by UE is measured on the running time-frequency resource that the configuration of x kind pilot signal indicates respectively X measurement result.Determination unit 610 can also be according to the uplink of the port of the received metrical information of receiving unit 640 and q group Power is received, determines data transmission beam.Transmission unit 620 can also utilize data transmission beam, send data to UE.

Optionally, as another embodiment, determination unit 610 can select optimal measurement knot from x measurement result Fruit, and determine the corresponding candidate subgroup of optimal measurement result, candidate subgroup includes at least one subgroup, can be according to q group The uplink received power of port selects the maximum subgroup of uplink received power from candidate subgroup, and can be according to optimal Measurement result and selection a subgroup, determine the data transmission beam of UE.

Optionally, as another embodiment, each measurement result in above-mentioned x measurement result may include CQI.Or Person, each measurement result may include CQI, and following at least one: order, PMI.

Optionally, as another embodiment, pilot signal can be CSI-RS.

Other function and operations of base station 600 are referred to the mistake of base station involved in the embodiment of the method for Fig. 1 to Fig. 4 above Journey repeats no more in order to avoid repeating.

Fig. 7 is the schematic block diagram of UE according to an embodiment of the invention.The UE 700 of Fig. 7 includes 710 He of receiving unit Measuring unit 720.

Receiving unit 710 receives the n pilot signal that base station is sent by the port of q group, wherein q group is base station by m P port corresponding to wave beam includes that n port carries out dividing acquisition according to each group, and m and p are the positive integer greater than 1, N and q is the positive integer greater than 1；I-th of port in each group is used to send i-th of pilot tone letter in n pilot signal Number, 1≤i≤n, i are positive integer.Measuring unit 720 measures the received n pilot signal of receiving unit 710.

Optionally, as one embodiment, receiving unit 710 can also be in the n for receiving port transmission of the base station by q group Before a pilot signal, the signaling that base station is sent is received, signaling is used to indicate x kind pilot signal corresponding to the port of q group and matches It sets, wherein each group in q group is divided into x subgroup, and each subgroup includes y port, j-th of subgroup in each group Corresponding to the jth kind pilot signal configuration in the configuration of x kind pilot signal, pilot signal is configured to indicate that pilot signal occupied Running time-frequency resource, x and y are the positive integer more than or equal to 1, and 1≤j≤x, j are positive integer.

Optionally, as another embodiment, UE 700 can also include transmission unit 730.

Measuring unit 720 can be configured in x kind pilot signal and be carried out on the running time-frequency resource indicated respectively to n pilot signal Measurement, obtains x measurement result.

Transmission unit 730 can send metrical information to base station, and metrical information includes x measurement result.

Optionally, as another embodiment, receiving unit 710 can also be received base station and be sent by data transmission beam Data, wherein to be base station determine data transmission beam according to the uplink received power of the port of metrical information and q group.

Optionally, as another embodiment, pilot signal can be CSI-RS.

Other function and operations of UE 700 are referred to the process of UE involved in embodiment of the method for the above figure 1 to Fig. 5, In order to avoid repeating, repeat no more.

Fig. 8 is the schematic block diagram of base station according to another embodiment of the present invention.The base station 800 of Fig. 8 includes 810 He of processor Transmitter 820.

Processor 810 determines m wave beam, and determines p port corresponding to m wave beam, and wherein m and p is greater than 1 Positive integer.Transmitter 820 sends n pilot signal to UE, wherein q group is by p port according to each by the port of q group Group includes that n port carries out dividing acquisition, and n and q are the positive integer greater than 1；I-th of port in each group is for sending I-th of pilot signal in n pilot signal, 1≤i≤n, i are positive integer.

Optionally, as one embodiment, p port can also be divided into q according to the direction of m wave beam by processor 810 Group.

Optionally, as another embodiment, processor 810 can use the mode of antenna weighting, form m wave beam.

Optionally, as another embodiment, processor 810 can use m weighted value, respectively to one group of same polarization Antenna is weighted, and forms m wave beam.

Optionally, as another embodiment, processor 810 can use k weighted value, respectively to one group of same polarization antenna It is weighted, forms k wave beam, k is the positive integer greater than 1；It is adjacent to any two in k wave beam using the first weighted value Wave beam be weighted, formed m/2 wave beam；Using the second weighted value, the wave beam adjacent to any two in k wave beam is carried out Weighting forms m/2 wave beam.

Optionally, as another embodiment, processor 810 can use m/2 weighted value, respectively to first group of same polarization Antenna is weighted, and forms m/2 wave beam；Using m/2 weighted value, second group of same polarization antenna is weighted respectively, shape At m/2 wave beam；Wherein, there are spacing between first group of same polarization antenna and second group of same polarization antenna.

Optionally, as another embodiment, processor 810 can also be sent out in transmitter 820 by the port of q group to UE Before sending n pilot signal, determine that x kind pilot signal corresponding to the port of q group configures, wherein each group in q group is drawn It is divided into x subgroup, each subgroup includes y port, and j-th of subgroup in each group corresponds in the configuration of x kind pilot signal The configuration of jth kind pilot signal, pilot signal are configured to indicate that the running time-frequency resource that pilot signal occupies, and x and y are to be greater than or wait In 1 positive integer, 1≤j≤x, j are positive integer.Transmitter 820 can also send signaling to UE, and signaling is used to indicate x kind pilot tone Signal configuration.

Optionally, as another embodiment, base station 800 can also include receiver 830.Receiver 830 can connect from UE Metrical information is received, metrical information includes that UE measures obtained x on the running time-frequency resource that the configuration of x kind pilot signal indicates respectively Measurement result.Processor 810 can also according to the uplink received power of the port of the received metrical information of receiver 830 and q group, Determine the data transmission beam of UE.Transmitter 820 can also utilize the data transmission beam of UE, send data to UE.

Optionally, as another embodiment, processor 810 can select optimal measurement result from x measurement result, And determining the corresponding candidate subgroup of optimal measurement result, candidate subgroup includes at least one subgroup, can be according to the port of q group Uplink received power, the maximum subgroup of uplink received power is selected from candidate subgroup, and can be according to optimal survey A subgroup for measuring result and selection, determines the data transmission beam of UE.

Optionally, as another embodiment, pilot signal can be CSI-RS.

Other function and operations of base station 800 are referred to the mistake of base station involved in the embodiment of the method for Fig. 1 to Fig. 4 above Journey repeats no more in order to avoid repeating.

Fig. 9 is the schematic block diagram of UE according to another embodiment of the present invention.The UE 900 of Fig. 9 includes receiver 910 and place Manage device 920.

Receiver 910 receives base station and passes through n pilot signal of the port of q group transmission, wherein q group is base station by m wave P port corresponding to beam includes that n port carries out dividing acquisition according to each group, and m and p are the positive integer greater than 1, n With the positive integer that q is greater than 1；I-th of port in each group is used to send i-th of pilot signal in n pilot signal, 1≤i≤n, i are positive integer.Processor 920 measures the received n pilot signal of receiver 910.

Optionally, as one embodiment, receiver 910 can also be a in the n for receiving port transmission of the base station by q group Before pilot signal, the signaling that base station is sent is received, signaling is used to indicate the configuration of x kind pilot signal corresponding to the port of q group, Wherein, each group in q group is divided into x subgroup, and each subgroup includes y port, and j-th of subgroup in each group is corresponding Jth kind pilot signal configuration in the configuration of x kind pilot signal, pilot signal are configured to indicate that the time-frequency that pilot signal occupies Resource, x and y are the positive integer more than or equal to 1, and 1≤j≤x, j are positive integer.

Optionally, as another embodiment, UE 900 can also include transmitter 930.

Processor 920 can be configured in x kind pilot signal and be surveyed on the running time-frequency resource indicated respectively to n pilot signal Amount, obtains x measurement result.

Transmitter 930 can send metrical information to base station, and metrical information includes x measurement result.

Optionally, as another embodiment, receiver 910 can also receive what base station was sent by data transmission beam Data, wherein data transmission beam is that base station is determined according to the uplink received power of the port of metrical information and q group.

Optionally, as another embodiment, pilot signal can be CSI-RS.

Other function and operations of UE 900 are referred to the process of UE involved in embodiment of the method for the above figure 1 to Fig. 5, In order to avoid repeating, repeat no more.

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

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

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or 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: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims

1. a kind of method for transmitting pilot signal characterized by comprising

It determines m wave beam, and determines p port corresponding to the m wave beam, wherein m and p is the positive integer greater than 1；

By the port of q group, send n pilot signal to user equipment (UE), wherein the q group be by the p port according to Each group includes that n port carries out dividing acquisition, and n and q are the positive integer greater than 1；I-th of port in described each group For sending i-th of pilot signal in the n pilot signal, 1≤i≤n, i are positive integer, and the pilot signal is for believing Road mass measurement.

2. the method according to claim 1, wherein further include:

According to the direction of the m wave beam, the p port is divided into q group.

3. method according to claim 1 or 2, which is characterized in that the determining m wave beam, comprising:

In the way of antenna weighting, the m wave beam is formed.

4. according to the method described in claim 3, forming the m wave it is characterized in that, described in the way of antenna weighting Beam, comprising:

Using m weighted value, one group of same polarization antenna is weighted respectively, forms the m wave beam.

5. according to the method described in claim 3, forming the m wave it is characterized in that, described in the way of antenna weighting Beam, comprising:

Using k weighted value, one group of same polarization antenna is weighted respectively, forms k wave beam, k is the positive integer greater than 1；

Using the first weighted value, the wave beam adjacent to any two in the k wave beam is weighted, and forms m/2 wave beam；

Using the second weighted value, the wave beam adjacent to any two in the k wave beam is weighted, and forms m/2 wave beam.

6. according to the method described in claim 3, forming the m wave it is characterized in that, described in the way of antenna weighting Beam, comprising:

Using m/2 weighted value, first group of same polarization antenna is weighted respectively, forms m/2 wave beam；

Using the m/2 weighted value, second group of same polarization antenna is weighted respectively, forms m/2 wave beam；

Wherein, there are spacing between first group of same polarization antenna and second group of same polarization antenna.

7. the method according to claim 1, wherein sending n pilot tone to UE in the port by q group Before signal, further includes:

Determine that x kind pilot signal corresponding to the port of the q group configures, wherein each group in the q group is divided into x A subgroup, each subgroup include y port, and j-th of subgroup in each group corresponds to the in x kind pilot signal configuration The configuration of j kind pilot signal, the pilot signal are configured to indicate that the running time-frequency resource that pilot signal occupies, x and y be greater than or Positive integer equal to 1,1≤j≤x, j are positive integer；

Signaling is sent to the UE, the signaling is used to indicate the x kind pilot signal configuration.

8. the method according to the description of claim 7 is characterized in that further include:

Metrical information is received from the UE, the metrical information includes that the UE is indicated respectively in x kind pilot signal configuration Running time-frequency resource on measure obtained x measurement result；

According to the uplink received power of the port of the metrical information and the q group, the data transmission beam of the UE is determined；

Using the data transmission beam of the UE, data are sent to the UE.

9. according to the method described in claim 8, it is characterized in that, the port according to the metrical information and the q group Uplink received power, determine the data transmission beam of the UE, comprising:

Optimal measurement result is selected from the x measurement result, and determines the corresponding candidate of the optimal measurement result Subgroup, candidate's subgroup includes at least one subgroup；

According to the uplink received power of the port of the q group, uplink received power maximum one is selected from the candidate subgroup A subgroup；

According to the optimal measurement result and the selected subgroup, the data transmission beam of the UE is determined.

10. method according to claim 8 or claim 9, which is characterized in that each measurement result in the x measurement result Including channel quality indicator (CQI)；

Alternatively, each measurement result includes the CQI, and following at least one: order, pre-coding matrix instruction PMI.

11. the method according to claim 1, wherein the pilot signal is channel state information reference signals CSI-RS。

12. a kind of method for transmitting pilot signal characterized by comprising

It receives base station and passes through n pilot signal of the port of q group transmission, wherein the q group is the base station by m wave beam institute Corresponding p port includes that n port carries out dividing acquisition according to each group, and m and p are the positive integer greater than 1, and n and q are equal For the positive integer greater than 1；I-th of port in described each group is used to send i-th of pilot tone letter in the n pilot signal Number, 1≤i≤n, i are positive integer；

The n pilot signal is measured to obtain measurement result, the measurement result is used to indicate channel quality.

13. according to the method for claim 12, which is characterized in that in the n that the reception base station is sent by the port of q group Before a pilot signal, further includes:

The signaling that the base station is sent is received, the signaling is used to indicate x kind pilot signal corresponding to the port of the q group and matches It sets, wherein each group in the q group is divided into x subgroup, and each subgroup includes y port, and j-th in each group Subgroup corresponds to the jth kind pilot signal configuration in x kind pilot signal configuration, and the pilot signal, which is configured to indicate that, to be led The running time-frequency resource that frequency signal occupies, x and y are the positive integer more than or equal to 1, and 1≤j≤x, j are positive integer.

14. according to the method for claim 13, which is characterized in that described to measure to obtain to the n pilot signal Measurement result, comprising:

The n pilot signal is measured on the running time-frequency resource that x kind pilot signal configuration indicates respectively, obtains x A measurement result；

The method also includes:

Metrical information is sent to the base station, the metrical information includes the x measurement result.

15. according to the method for claim 14, which is characterized in that further include:

By data transmission beam, the data that the base station is sent are received, wherein the data transmission beam is the base station root It is determined according to the uplink received power of the port of the metrical information and the q group.

16. method according to claim 14 or 15, which is characterized in that each measurement knot in the x measurement result Fruit includes channel quality indicator (CQI)；

17. according to the method for claim 12, which is characterized in that the pilot signal is channel state information reference signals CSI-RS。

18. a kind of base station characterized by comprising

Determination unit for determining m wave beam, and determines p port corresponding to the m wave beam, and wherein m and p is big In 1 positive integer；

Transmission unit sends n pilot signal to user equipment (UE), wherein the q group is by institute for the port by q group It includes that n port carries out dividing acquisition that p port, which is stated, according to each group, and n and q are the positive integer greater than 1；Described each group In i-th of port be used to send i-th of pilot signal in the n pilot signal, 1≤i≤n, i are positive integer, described Pilot signal is used for channel quality measurement.

19. base station according to claim 18, which is characterized in that further include:

The p port is divided into q group for the direction according to the m wave beam by grouped element.

20. base station described in 8 or 19 according to claim 1, which is characterized in that the determination unit is specifically used for adding using antenna The mode of power forms the m wave beam.

21. base station according to claim 20, which is characterized in that the determination unit is specifically used for utilizing m weighted value, One group of same polarization antenna is weighted respectively, forms the m wave beam.

22. base station according to claim 20, which is characterized in that the determination unit is specifically used for utilizing k weighted value, One group of same polarization antenna is weighted respectively, forms k wave beam, k is the positive integer greater than 1；Using the first weighted value, to institute It states the wave beam that any two are adjacent in k wave beam to be weighted, forms m/2 wave beam；Using the second weighted value, to the k The adjacent wave beam of any two is weighted in wave beam, forms m/2 wave beam.

23. base station according to claim 20, which is characterized in that the determination unit is specifically used for utilizing m/2 weighting Value, is respectively weighted first group of same polarization antenna, forms m/2 wave beam；Using the m/2 weighted value, respectively to Two groups of same polarization antennas are weighted, and form m/2 wave beam；Wherein, first group of same polarization antenna and described second group it is same There are spacing between poliarizing antenna.

24. base station according to claim 18, which is characterized in that

The determination unit is also used to before the transmission unit sends n pilot signal to UE by the port of q group, really X kind pilot signal configuration corresponding to the port of the fixed q group, wherein each group in the q group is divided into x subgroup, Each subgroup includes y port, and j-th of subgroup in each group corresponds to the jth kind pilot tone in x kind pilot signal configuration Signal configuration, the pilot signal are configured to indicate that the running time-frequency resource that pilot signal occupies, and x and y are more than or equal to 1 Positive integer, 1≤j≤x, j are positive integer；

The transmission unit, is also used to send signaling to the UE, and the signaling is used to indicate the x kind pilot signal configuration.

25. base station according to claim 24, which is characterized in that further include receiving unit；

The receiving unit, for receiving metrical information from the UE, the metrical information includes the UE in the x kind pilot tone Obtained x measurement result is measured on the running time-frequency resource that signal configuration indicates respectively；

The determination unit is also used to be connect according to the uplink of the port of the received metrical information of the receiving unit and the q group Power is received, determines the data transmission beam of the UE；

The transmission unit is also used to the data transmission beam using the UE, sends data to the UE.

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

Optimal measurement result is selected from the x measurement result, and determines the corresponding candidate of the optimal measurement result Subgroup, candidate's subgroup includes at least one subgroup；According to the uplink received power of the port of the q group, from the candidate The maximum subgroup of uplink received power is selected in subgroup；According to the optimal measurement result and the selected son Group determines the data transmission beam of the UE.

27. a kind of user equipment characterized by comprising

Receiving unit, the n pilot signal sent for receiving base station by the port of q group, wherein the q group is the base Stand by p port corresponding to m wave beam according to each group include n port carry out divide acquisition, m and p are greater than 1 Positive integer, n and q are the positive integer greater than 1；I-th of port in described each group is for sending in the n pilot signal I-th of pilot signal, 1≤i≤n, i are positive integer；

Measuring unit, it is described for measuring to obtain measurement result to the received n pilot signal of the receiving unit Measurement result is used to indicate channel quality.

28. user equipment according to claim 27, which is characterized in that

The receiving unit is also used to before receiving the n pilot signal that base station is sent by the port of q group, described in reception The signaling that base station is sent, the signaling are used to indicate the configuration of x kind pilot signal corresponding to the port of the q group, wherein described Each group in q group is divided into x subgroup, and each subgroup includes y port, and j-th of subgroup in each group corresponds to institute The jth kind pilot signal configuration in the configuration of x kind pilot signal is stated, the pilot signal is configured to indicate that pilot signal occupied Running time-frequency resource, x and y are the positive integer more than or equal to 1, and 1≤j≤x, j are positive integer.

29. user equipment according to claim 28, which is characterized in that further include transmission unit；

The measuring unit, specifically for being led on the running time-frequency resource that x kind pilot signal configuration indicates respectively to the n Frequency signal measures, and obtains x measurement result；

The transmission unit, for sending metrical information to the base station, the metrical information includes the x measurement result.

30. user equipment according to claim 29, which is characterized in that

The receiving unit is also used to receive the data that the base station is sent by data transmission beam, wherein the data pass Defeated wave beam is that the base station is determined according to the uplink received power of the port of the metrical information and the q group.

31. a kind of communication system characterized by comprising

Base station and user equipment, wherein

The base station is for executing such as the described in any item methods of claim 1-11；

The user equipment is for executing such as the described in any item methods of claim 12-17.