CN108260141A

CN108260141A - Antenna calibration starts the methods, devices and systems of time with determining antenna calibration

Info

Publication number: CN108260141A
Application number: CN201611249136.1A
Authority: CN
Inventors: 张芸; 李龙文
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2018-07-06
Anticipated expiration: 2036-12-29
Also published as: CN108260141B; WO2018121181A1

Abstract

The embodiment of the invention discloses the methods, devices and systems that a kind of antenna calibration and determining antenna calibration start the time；This method is applied to FDD system, and this method can include：Uplink/downlink antenna correction, which is chosen, according to preset subframe carrying information starts time corresponding first sub-frame number；Uplink/downlink antenna correction is carried out in the corresponding subframe of first sub-frame number.

Description

Antenna calibration starts the methods, devices and systems of time with determining antenna calibration

Technical field

The present invention relates to radio-frequency antenna technology more particularly to antenna calibration and determining antenna calibration start the time method, Device and system.

Background technology

It, can be because the nonlinear characteristic of channel in itself causes signal width mutually to occur when signal transmits in radio-frequency channel Variation, so by designing antenna calibration function so that the magnitude-phase characteristics for signal of eating dishes without rice or wine is closer to baseband signal.

Wave beam forming (BF, BeamForming) is a kind of aerial array multiple antenna transmission technique applied to small spacing, Cardinal principle is that the antenna pattern of highly directive is generated using the strong correlation of space channel and the principle of interference of wave, makes radiation The main lobe of directional diagram is adaptively directed toward arrival bearing user, so as to improve signal-to-noise ratio and power system capacity or coverage area. Angle of arrival (AOA, Arrival of Angle) detects location technology, the multiple letters that can be detected by receiving antenna array Number incidence angle, judges the direction of arrival of signal, by multiple directions value, calculates the position of target.Frequency division duplex (FDD, Frequency Division Duplexing) AOA and BF during be corrected weights compensation.Therefore antenna calibration for The accuracy of BF and AOA weights estimations plays the role of very important.

Protection interval (GAP, GuArd are utilized in time division duplex (TDD, Time Division Duplexing) system Period) time slot carries out the transmitting-receiving of antenna calibration sequence, and GAP time slots are used to carry out uplink and downlink switching in a tdd system, not Carry uplink and downlink business useful information, therefore, using GAP time slots come carry correction sequence will not be to the upper of entire wireless channel Downlink has an impact.But there is no GAP time slots in FDD system, therefore FDD system can only select to close in effective subframe Suitable time point carries out antenna calibration.But suitable time point is selected to carry out antenna calibration in effective subframe, to entire The uplink downlink of wireless channel can have an impact.

Invention content

To start in order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of antenna calibrations and determining antenna calibration The methods, devices and systems of time；Under the premise of alignment requirements are met, FDD system can be reduced in antenna calibration to whole The influence that the uplink downlink of a wireless channel generates.

The technical proposal of the invention is realized in this way：

In a first aspect, an embodiment of the present invention provides a kind of method that determining antenna calibration starts the time, the method should For FDD system, the method includes：

Uplink/downlink antenna correction, which is chosen, according to preset subframe carrying information starts time corresponding first sub-frame number；

Uplink/downlink antenna correction is carried out in the corresponding subframe of first sub-frame number.

It is described corresponding according to the preset subframe carrying information selection uplink/downlink antenna correction startup time in said program First sub-frame number, including：

First is obtained according to for carrying the sub-frame number of broadcast channel, synchronizing signal, system information and paging information Subframe collection A；

The second subframe collection B is obtained according to for carrying the sub-frame number of reference signal；

Third subframe collection C is obtained according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources；

According to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset screening strategy It obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number.

It is described according to the first subframe collection A, the second subframe collection B, the third subframe collection C in said program And preset screening strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number, specifically includes：

Candidate son is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and following formula Frame collection D；

When the candidate's subframes collection D is not empty, arbitrarily chosen from the candidate's subframes collection D described in sub-frame number conduct Uplink/downlink antenna correction starts time corresponding first sub-frame number；

When the candidate's subframes collection D is empty, from setIn arbitrarily choose sub-frame number as the uplink/downlink antenna Correction starts time corresponding first sub-frame number.

In said program, when the candidate's subframes collection D is not empty, chosen from the candidate's subframes collection D it is described under Row antenna calibration starts time corresponding first sub-frame number, including：

Maximum subframe numbers in the candidate's subframes collection D are chosen for uplink/downlink antenna correction and start the time corresponding the One sub-frame number.

In said program, when the candidate's subframes collection D is empty, from setIt is middle to choose the uplink/downlink antenna school It is positive to start time corresponding first sub-frame number, including：

It will setIn maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first subframe Serial number.

In said program, start the time corresponding the choosing uplink/downlink antenna correction according to preset subframe carrying information After one sub-frame number, the method further includes：

It is corresponding that the uplink antenna correction startup time is obtained according to preset sub-frame interval and first sub-frame number Second sub-frame number；

Uplink antenna correction is carried out in the corresponding subframe of second sub-frame number.

In said program, the preset sub-frame interval is dispatched according to agreement uplink and downlink hybrid automatic repeat-request HARQ Feedback interval determines.

Second aspect, an embodiment of the present invention provides the devices that a kind of determining antenna calibration starts the time, and described device should For FDD system, including：First chooses module and correction sequence generation module, wherein；

Described first chooses module, starts the time pair for choosing uplink/downlink antenna correction according to preset subframe carrying information The first sub-frame number answered；

The correction sequence generation module, for carrying out uplink/downlink antenna school in the corresponding subframe of first sub-frame number Just.

In said program, the first selection module includes：First acquisition submodule, the second acquisition submodule, third Acquisition submodule and screening submodule；Wherein,

First acquisition submodule, according to for carrying broadcast channel, synchronizing signal, system information and paging information Sub-frame number obtain the first subframe collection A；

Second acquisition submodule obtains the second subframe collection B according to for carrying the sub-frame number of reference signal；

The third acquisition submodule is obtained according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources Take third subframe collection C；

The screening submodule, for according to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset screening strategy obtain the uplink/downlink antenna correction and start time corresponding first sub-frame number.

In said program, the screening submodule is used for：

In said program, the screening submodule, for when the candidate's subframes collection D is not empty, by the candidate Maximum subframe numbers in subframe collection D are chosen for the uplink/downlink antenna correction and start time corresponding first sub-frame number.

In said program, the screening submodule, for when the candidate's subframes collection D is empty, will gatherIn Maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first sub-frame number.

In said program, described device further includes：First acquisition module, for according to preset sub-frame interval and institute It states the first sub-frame number and obtains uplink antenna correction startup time corresponding second sub-frame number；

The correction sequence generation module is additionally operable to carry out uplink antenna school in the corresponding subframe of second sub-frame number Just.

The third aspect, an embodiment of the present invention provides the equipment that a kind of determining antenna calibration starts the time, the equipment packets It includes：First communication interface, first memory, first processor and the first bus；Wherein,

First bus for connect first communication interface, the first processor and the first memory with And being in communication with each other between these devices；

First communication interface, for carrying out data transmission with ext nal network element；

The first memory, for storing instruction and data；

The first processor performs described instruction and is used for：Uplink/downlink antenna correction is chosen according to preset subframe carrying information Start time corresponding first sub-frame number；And

In said program, the first processor is specifically used for：

First is obtained according to for carrying the sub-frame number of broadcast channel, synchronizing signal, system information and paging information Subframe collection A；And

The second subframe collection B is obtained according to for carrying the sub-frame number of reference signal；And

Third subframe collection C is obtained according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources；And

In said program, the first processor is specifically used for：

And when the candidate's subframes collection D is not empty, sub-frame number work is arbitrarily chosen from the candidate's subframes collection D It is corrected for the uplink/downlink antenna and starts time corresponding first sub-frame number；

And when the candidate's subframes collection D is empty, from setIn arbitrarily choose sub-frame number as under described Row antenna calibration starts time corresponding first sub-frame number.

In said program, the first processor is specifically used for：

When the candidate's subframes collection D is not empty, by the maximum subframe numbers in the candidate's subframes collection D be chosen for it is described under Row antenna calibration starts time corresponding first sub-frame number；

When the candidate's subframes collection D is empty, will gatherIn maximum subframe numbers be chosen for the uplink/downlink antenna school It is positive to start time corresponding first sub-frame number.

In said program, the first processor is additionally operable to：

It is corresponding that the uplink antenna correction startup time is obtained according to preset sub-frame interval and first sub-frame number Second sub-frame number；And

Fourth aspect, an embodiment of the present invention provides a kind of method of antenna calibration, the method is applied to frequency division duplex FDD system, the method includes：

Uplink/downlink antenna correction sequence is sent, and in second sub-frame number in the corresponding subframe of first sub-frame number Corresponding subframe sends uplink antenna correction sequence.

When the candidate's subframes collection D is not empty, downlink described in sub-frame number is arbitrarily chosen from the candidate's subframes collection D Antenna calibration starts time corresponding first sub-frame number；

5th aspect, an embodiment of the present invention provides a kind of antenna calibration device, described device includes：Second chooses mould Block, the second acquisition module and sending module；Wherein,

Described second chooses module, starts the time pair for choosing uplink/downlink antenna correction according to preset subframe carrying information The first sub-frame number answered；

Second acquisition module, for obtaining uplink day according to preset sub-frame interval and first sub-frame number Line correction starts time corresponding second sub-frame number；

The sending module, for sending uplink/downlink antenna correction sequence in the corresponding subframe of first sub-frame number, and Uplink antenna correction sequence is sent in the corresponding subframe of second sub-frame number.

In said program, described second chooses module, is specifically used for：

And obtain the second subframe collection B according to for carrying the sub-frame number of reference signal；

And obtain third subframe collection C according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources；

And according to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset sieve Choosing strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number.

In said program, described second chooses module, is specifically used for：

And when the candidate's subframes collection D is not empty, sub-frame number institute is arbitrarily chosen from the candidate's subframes collection D It states uplink/downlink antenna correction and starts time corresponding first sub-frame number；

In said program, described second chooses module, specifically for when the candidate's subframes collection D is not empty, by institute It states the maximum subframe numbers in candidate's subframes collection D and is chosen for the uplink/downlink antenna correction startup time corresponding first sub-frame number.

In said program, described second chooses module, specifically for when the candidate's subframes collection D is empty, will gatherIn maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first sub-frame number.

6th aspect, an embodiment of the present invention provides a kind of antenna calibration equipment, the equipment includes：Second communication connects Mouth, second memory, second processor and the second bus；Wherein,

Second bus for connect second communication interface, the second processor and the second memory with And being in communication with each other between these devices；

Second communication interface, for carrying out data transmission with ext nal network element；

The second memory, for storing instruction and data；

The second processor performs described instruction and is used for：Uplink/downlink antenna correction is chosen according to preset subframe carrying information Start time corresponding first sub-frame number；

And uplink antenna correction is obtained according to preset sub-frame interval and first sub-frame number and starts the time pair The second sub-frame number answered；

And instruction second communication interface sends uplink/downlink antenna correction in the corresponding subframe of first sub-frame number Sequence, and indicate that second communication interface sends uplink antenna correction sequence in the corresponding subframe of second sub-frame number.

In said program, the second processor is used for：

And when the candidate's subframes collection D is empty, it will gatherIn maximum subframe numbers be chosen for the downlink Antenna calibration starts time corresponding first sub-frame number.

7th aspect, an embodiment of the present invention provides a kind of antenna calibration system, the system comprises：Baseband processing unit BBU and radio frequency remote unit RRU；Wherein,

The BBU starts the time corresponding first for choosing uplink/downlink antenna correction according to preset subframe carrying information Sub-frame number；And

By carrying out uplink and downlink antenna calibration with interacting for the RRU；

The RRU, for carrying out uplink and downlink antenna calibration with interacting for the BBU.

In said program, the BBU is specifically used for：

In said program, the BBU, specifically for being sent out in the corresponding subframe of first sub-frame number to the RRU Send uplink/downlink antenna correction sequence；

Correspondingly, the RRU, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU, passes through sendaisle After sending out correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

And the RRU sends uplink antenna correction sequence in the corresponding subframe of second sub-frame number, in calibration terminal After mouth sends out correction reference signal, coupled circuit is fed to receiving channel, returns to the BBU.

The RRU, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU, school is sent out by sendaisle After positive reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

The BBU, specifically for sending uplink antenna correction to the RRU in the corresponding subframe of second sub-frame number Sequence；

The RRU, the uplink antenna correction sequence sent specifically for receiving the BBU, correction is sent out in calibration port After reference signal, coupled circuit is fed to receiving channel, returns to the BBU.

In said program, the BBU, for the RRU uplink/downlink antennas correction to be notified to start the time；

The RRU for sending uplink/downlink antenna correction sequence in the corresponding subframe of the first sub-frame number, passes through sendaisle After sending out correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

The RRU sends uplink antenna correction sequence in the corresponding subframe of the second sub-frame number, and school is sent out in calibration port After positive reference signal, coupled circuit is fed to receiving channel, returns to the BBU.

Start the method, apparatus of time with determining antenna calibration an embodiment of the present invention provides a kind of antenna calibration and be System；Time corresponding sub-frame number is started to choose uplink/downlink antenna correction by preset subframe carrying information, according to preset Sub-frame interval and first sub-frame number obtain uplink antenna correction and start time corresponding second sub-frame number, avoid Subframe influential on uplink and downlink business, so as to reduce FDD system in antenna calibration to the uplink and downlink chain of entire wireless channel The influence that road generates.

Description of the drawings

Fig. 1 is the method flow schematic diagram that a kind of determining antenna calibration provided in an embodiment of the present invention starts the time；

Fig. 2 is a kind of selection flow diagram of first sub-frame number provided in an embodiment of the present invention；

Fig. 3 is a kind of detailed process flow diagram of antenna correcting method provided in an embodiment of the present invention；

Fig. 4 is a kind of allocation list structure diagram provided in an embodiment of the present invention；

Fig. 5 is the structure diagram for the device that a kind of determining antenna calibration provided in an embodiment of the present invention starts the time；

Fig. 6 is the provided in an embodiment of the present invention a kind of first structure diagram for choosing module；

Fig. 7 is the structure diagram for the device that another determining antenna calibration provided in an embodiment of the present invention starts the time；

Fig. 8 is the hardware configuration signal for the equipment that a kind of determining antenna calibration provided in an embodiment of the present invention starts the time Figure；

Fig. 9 is a kind of method flow schematic diagram of antenna calibration provided in an embodiment of the present invention；

Figure 10 is a kind of structure diagram of antenna calibration device provided in an embodiment of the present invention；

Figure 11 is a kind of structure diagram of antenna calibration equipment provided in an embodiment of the present invention；

Figure 12 is a kind of structure diagram of antenna calibration system provided in an embodiment of the present invention；

Figure 13 is the structure diagram of another antenna calibration system provided in an embodiment of the present invention.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.

In frequency division duplex (FDD, Frequency Division Duplexing) system, upper and lower row of channels is independent , it is therefore desirable to channel correcting, generation uplink and downlink correction weights are carried out respectively.Uplink/downlink antenna timing is being carried out, to avoid pair The influence of down physical channel, all down physical channels all close transmitting, stop uplink and downlink scheduling.

If downlink subframe n has Physical Broadcast Channel (PBCH, Physical Broadcast Channel), synchronous letter Number such as primary synchronization signal (PSS, Primary Synchronization Signal) or secondary synchronization signal (SSS, Secondary Synchronization Signal), system information such as system information block 1 (SIB, System Information Block) 1, Reference signal such as channel state information reference mark (CSI-RS, Channel State Information-Reference Signal), then down physical channel closes the transmission that will influence these signals.In addition in sub-frame of uplink (n+ Δs) startup Row antenna calibration, wherein, Δ is preset sub-frame interval, according to agreement uplink and downlink hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat reQuest) scheduled feedback interval determines, it is set as 4 subframes.If the subframe have physics with Machine accesses channel (PRACH, Physical Random Access CHannel) resource, can to set using the user of the resource Standby (UE, User Equipment) random access failure, so as to increase the random access time of UE.In order to avoid influencing above-mentioned letter Breath sends and receives, and it is extremely important that uplink/downlink antenna correction starts time subframe n.

In view of the possibility that the above situation occurs, the following embodiment of the present invention is proposed.

Embodiment one

Referring to Fig. 1, it illustrates the method that a kind of determining antenna calibration provided in an embodiment of the present invention starts the time, the party Method can be applied to FDD system, and this method can include：

S101：Uplink/downlink antenna correction, which is chosen, according to preset subframe carrying information starts time corresponding first subframe sequence Number；

S102：Uplink/downlink antenna correction is carried out in the corresponding subframe of first sub-frame number.

Technical solution shown in FIG. 1 starts time correspondence by preset subframe carrying information to choose uplink/downlink antenna correction Sub-frame number, the influential subframe on downlink business is avoided, so as to reduce FDD system in antenna calibration to entire wireless The influence that the downlink of channel generates.

Illustratively, for uplink service, when choosing uplink/downlink antenna correction startup according to preset subframe carrying information Between after corresponding first sub-frame number, the method further includes：

And carry out uplink antenna correction in the corresponding subframe of second sub-frame number.

For above-mentioned example, it is preferable that uplink antenna correction starts time corresponding second sub-frame number and uplink/downlink antenna The preset sub-frame interval △ that correction starts between time corresponding first sub-frame number can be according to agreement uplink and downlink HARQ tune Feedback interval is spent to determine, △ is preferably 4.

It should be noted that said program and example are opened by preset subframe carrying information to choose uplink/downlink antenna correction Corresponding sub-frame number of dynamic time, and uplink antenna correction is chosen according to preset sub-frame interval and starts time corresponding subframe sequence Number, it avoids on the influential subframe of uplink and downlink business, so as to reduce FDD system in antenna calibration to entire wireless channel The influence that uplink downlink generates.

Illustratively, it is described to choose uplink/downlink antenna correction startup according to preset subframe carrying information for step S101 Time corresponding first sub-frame number, referring to Fig. 2, can specifically include：

S1011：It is obtained according to for carrying the sub-frame number of broadcast channel, synchronizing signal, system information and paging information Take the first subframe collection A；

During the specific implementation of S1011, broadcast channel can be PBCH, be provided according to existing agreement, PBCH The sub-frame number of occupancy is subframe 0；Synchronizing signal can include PSS or SSS, provide that PSS and SSS are accounted for according to existing agreement Sub-frame number is subframe 0 and subframe 5；System information can be SIB1, be provided according to existing agreement, and SIB1 is occupied Sub-frame number is subframe 5；And for paging information, it is provided according to agreement, the sub-frame number that paging information occupies is subframe 0, son Frame 4, subframe 5 and subframe 9.Therefore, the first subframe collection A for carrying above- mentioned information is { 0,4,5,9 }；

S1012：The second subframe collection B is obtained according to for carrying the sub-frame number of reference signal；

Specifically, reference signal can be CSI-RS.The sub-frame number that CSI-RS is occupied is related to specific configuration.If SFN is frame number, N_sFor sub-frame number.In order to simplify the complexity of scheduling, the influence in CSI periods is not considered, that is, thinks every frame Same sequence number subframe is all used for transmitting CSI, then the sub-frame number N that CSI is occupied_sIt can obtain according to the following formula：

Wherein, △_CSI-RSFor CSI-RS sub-frame offsets；T_CSI-RSFor the CSI-RS periods.Therefore, the second son of CSI-RS is carried Frame collection B={ N_s}。

And the configuration of sub-frame number that CSI-RS is occupied is as shown in table 1：

Table 1

S1013：Third subframe collection C is obtained according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources；

It should be noted that in sub-frame of uplink, PRACH resources are carried if up subframe, then carrying The sub-frame of uplink of PRACH resources starts uplink antenna correction, can cause using the UE of PRACH resources that the sub-frame of uplink carries with Machine access failure increases the random access time of UE.Therefore, it in order to avoid the above situation occurs, needs to avoid in carrying PRACH Uplink antenna correction sequence is sent in the subframe of resource, so as to which the third for the sub-frame of uplink for carrying PRACH resources should be obtained Subframe collection C.

S1014：According to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset sieve Choosing strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number.

For step S1014, it is possible to understand that ground, by the subframe collection accessed by above-mentioned steps S1011 to S1013, Be directed to the particularly useful information of uplink and downlink business including carrying, therefore, in order to avoid in antenna calibration to uplink and downlink business It has an impact, therefore, it is necessary to antenna calibration is being selected to avoid above-mentioned subframe concentration included subframe when starting the time.

It is described according to the first subframe collection A, the second subframe collection for step S1014 during specific implementation B, the third subframe collection C and preset screening strategy obtain the uplink/downlink antenna correction startup time corresponding first subframe Serial number specifically includes：

Candidate son is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and formula 1 Frame collection D；

Preferably, it is described to choose the downlink from the candidate's subframes collection D when the candidate's subframes collection D is not empty Antenna calibration starts time corresponding first sub-frame number, including：

Preferably, it is described from set when the candidate's subframes collection D is emptyIt is middle to choose the uplink/downlink antenna correction Start time corresponding first sub-frame number, including：

For the present embodiment, it should be noted that the executive agent of the present embodiment is with baseband processing unit (BBU, Base Band Unit) for, it, will also be in downlink when BBU is before uplink/downlink antenna correction sequence and uplink antenna correction sequence is sent Antenna calibration, which starts, stops uplink and downlink scheduling at time corresponding first sub-frame number, close the hair of all down physical channels It penetrates.It is to be appreciated that the executive agent for the step for carrying out sending uplink/downlink antenna correction sequence and uplink antenna correction sequence It can also be Remote Radio Unit (RRU, Radio Remote Unit).

Due to scheme through this embodiment, uplink/downlink antenna correction starts the time and the uplink antenna correction startup time is equal The subframe of carrying uplink and downlink business useful information is avoided, therefore, reduces FDD system when carrying out antenna calibration to uplink and downlink The influence of business.

Present embodiments provide a kind of method that determining antenna calibration starts the time, by preset subframe carrying information come It chooses uplink/downlink antenna correction and starts time corresponding sub-frame number, the influential subframe on downlink business is avoided, so as to reduce The influence that FDD system generates the downlink of entire wireless channel in antenna calibration.

Embodiment two

Based on the identical technical concept of previous embodiment, referring to Fig. 3, it illustrates a kind of days provided in an embodiment of the present invention The detailed process of line bearing calibration can include：

S301：Based on the subframe numbers where broadcast channel, synchronizing signal, system information and paging signal, the first son is obtained Frame collection A；

It should be noted that since FDD system can only select suitable time point to carry out antenna school in effective subframe Just.Therefore, in order to avoid being had an impact in antenna calibration to the uplink downlink of entire wireless channel, therefore, in selection day During the startup time of line correction, need to avoid on the influential subframe of uplink and downlink business.

In step S301, the subframe needs in the first subframe collection A are avoided.It is concentrated in the first subframe, broadcast channel It can be PBCH, be provided according to existing agreement, the sub-frame number that PBCH is occupied is subframe 0；Synchronizing signal can include PSS or SSS provides that the sub-frame number that PSS and SSS are occupied is subframe 0 and subframe 5 according to existing agreement；System information can be SIB1 provides that the occupied sub-frame numbers of SIB1 are subframe 5 according to existing agreement；And for paging information, it is advised according to agreement Fixed, the sub-frame number that paging information occupies is subframe 0, subframe 4, subframe 5 and subframe 9.Therefore, the first son of above- mentioned information is carried Frame collection A is { 0,4,5,9 }；It is to be appreciated that the sub-frame number of carrying above- mentioned information can be carried out according to the change of specific agreement Change, the present embodiment is only used for being illustrated, not to the restriction of scheme.

S302：The second subframe collection B is obtained based on the subframe numbers where reference signal；

Specifically, reference signal can be CSI-RS.The sub-frame number that CSI-RS is occupied is related to specific configuration.If SFN is frame number, N_sFor sub-frame number.In order to simplify the complexity of scheduling, the influence in CSI periods is not considered, that is, thinks every frame Same subframe is all used for transmitting CSI, then the sub-frame number N that CSI is occupied_sIt can obtain according to the following formula：

S303：Third subframe collection C is obtained based on the subframe numbers where PRACH resources；

Specifically, the subframe numbers where PRACH resources are that uplink antenna correction needs to avoid when starting, and PRACH is accounted for Subframe numbers and specific configuration, i.e., PRACH configuration indexes (PRACH Configuration Index) are related.

If SFN is frame number, N_sFor subframe numbers.In order to simplify the complexity of scheduling, the shadow that SFN is Even and Any is not considered It rings, that is, thinks that the same sequence number subframe of every frame is all used for transmitting PRACH.So PRACH occupy subframe be：

N_sSubframe number set corresponding to=PRACH Configuration Index,

Wherein PRACH Configuration Index=0 to 15.

Based on this, third subframe collection C={ mod (N_s+10-4,10)}。

And the first kind frame structure random access allocation list of leading form 0-3 is as shown in figure 4, therefore, N_sIt can pass through Allocation list shown in Fig. 4 is inquired to obtain.In Fig. 4, PRACH Configuration Index are PRACH configuration indexes； Preamble Format are leading form；System frame number are system frame number；Subframe number are son Frame number.

It should be noted that the sequencing of above-mentioned steps S301 to S303 and be not especially limited, three steps can be with It is performed, can also be performed simultaneously, the present embodiment does not repeat this in any order.

S304：According to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset sieve Choosing strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number；

It is to be appreciated that uplink/downlink antenna correction starts time corresponding frame number F_AC,DLThere is no a special requirement, and first Sub-frame number n_AC,DLIt is determined as：

If D is not sky, the arbitrary subframe numbers in D can be selected as n_AC,DL；Preferably, it can select in D most Big subframe numbers are as n_AC,DL；

If D is sky, can selectIn arbitrary subframe numbers as n_AC,DL；Preferably, it can select Middle maximum subframe numbers are as n_AC,DL。

It is worth noting that, in the present embodiment,

S305：Uplink antenna correction is obtained according to preset sub-frame interval and first sub-frame number and starts the time pair The second sub-frame number answered；

In the present embodiment, the frame number F of uplink antenna correction_AC,ULFollowing formula condition should be met：

Correspondingly, uplink antenna correction starts time corresponding second sub-frame number n_AC,ULFollowing formula condition should be met：

n_AC,UL=mod (n_AC,DL+△,10)

Wherein, △ can determine that △ is preferably 4 according to agreement uplink and downlink HARQ scheduled feedbacks interval.

Embodiment three

Based on the identical technical concept of previous embodiment, for detailed process shown in Fig. 3, in specific implementation, need What is illustrated is：

First, PBCH, PSS or SSS, SIB1 and paging signal are avoided, the first subframe collection A is { 0,4,5,9 }；It is corresponding For { 1,2,3,6,7,8 }.

Secondly, it avoids CSI-RS signal, and subframe numbers that CSI is occupied and is specifically configured related；

I can be set_CSI-RS=4, T_CSI-RS=5；△_CSI-RS=4；It can thus be appreciated that the second subframe collection B is { 4,9 }；It is correspondingFor { 0,1,2,3,5,6,7,8 }.

Again, uplink antenna correction, which starts subframe, need to avoid the subframe numbers of PRACH occupancy；And the subframe numbers that PRACH is occupied It is related with specific configuration PRACH Configuration Index；

It is 6 that PRACH Configuration Index, which can be set, then by allocation list shown in Fig. 4, can be obtained Know：1,6 subframes per frame send PRACH, then and third subframe collection C is { 2,7 },For { 0,1,3,4,5,6,8,9 }.

Then, according toD is obtained as { 1,3,6,8 }, under then can preferably determining that subframe numbers 8 are used as Row antenna calibration starts subframe numbers；The 2nd subframe that uplink antenna correction starts the next frame of subframe in uplink/downlink antenna starts.

Example IV

I can be set_CSI-RS=10, T_CSI-RS=10；△_CSI-RS=5；It can thus be appreciated that the second subframe collection B is { 5 }；It is correspondingFor { 0,1,2,3,4,6,7,8,9 }.

It is 14 that PRACH Configuration Index, which can be set, then by allocation list shown in Fig. 4, can be obtained Know：All subframes per frame can send PRACH, then and third subframe collection C is { 0,1,2,3,4,5,6,7,8,9 },For Empty set.

Then, according toD is obtained as empty set, thenIt, then can be excellent for { 1,2,3,6,7,8 } Selection of land determines that subframe numbers 8 start subframe numbers as uplink/downlink antenna correction；Uplink antenna correction starts in uplink/downlink antenna under subframe 2nd subframe of one frame starts.

Embodiment five

Based on the identical technical concept of previous embodiment, referring to Fig. 5, it illustrates provided in an embodiment of the present invention a kind of true Determine the device 50 that antenna calibration starts the time, can include：First chooses module 501 and correction sequence generation module 502, In；

Described first chooses module 501, when starting for choosing uplink/downlink antenna correction according to preset subframe carrying information Between corresponding first sub-frame number；

The correction sequence generation module 502, for carrying out uplink/downlink antenna in the corresponding subframe of first sub-frame number Correction.

Illustratively, referring to Fig. 6, the first selection module 501 includes：First acquisition submodule 5011, second obtains Submodule 5012, third acquisition submodule 5013 and screening submodule 5014；Wherein,

First acquisition submodule 5011, for according to for carry broadcast channel, synchronizing signal, system information and The sub-frame number of paging information obtains the first subframe collection A；

Second acquisition submodule 5012, for obtaining the second subframe according to for carrying the sub-frame number of reference signal Collect B；

The third acquisition submodule 5013, for according to the son for being used to carry Physical Random Access Channel PRACH resources Frame number obtains third subframe collection C；

The screening submodule 5014, for according to the first subframe collection A, the second subframe collection B, third Frame collection C and preset screening strategy obtain the uplink/downlink antenna correction and start time corresponding first sub-frame number.

Optionally, the screening submodule 5014, is used for：

Candidate son is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and formula 3 Frame collection D；

Optionally, the screening submodule 5014, for the maximum subframe numbers in the candidate's subframes collection D to be chosen for institute It states uplink/downlink antenna correction and starts time corresponding first sub-frame number.

Optionally, the screening submodule 5014, for that will gatherIn maximum subframe numbers be chosen for the downlink Antenna calibration starts time corresponding first sub-frame number.

Illustratively, referring to Fig. 7, described device 50 further includes：First acquisition module 503, for according to preset subframe Interval and first sub-frame number obtain uplink antenna correction and start time corresponding second sub-frame number；

The correction sequence generation module 502 is additionally operable to carry out uplink day in the corresponding subframe of second sub-frame number Line corrects.

Preferably, first acquisition module 503, for according to preset sub-frame interval and first sub-frame number It obtains uplink antenna correction and starts time corresponding second sub-frame number, the preset sub-frame interval is according to agreement uplink and downlink HARQ scheduled feedbacks interval determines, preferably 4.

In addition, each function module in the present embodiment can be integrated in a processing unit or each list Member be individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated unit both can be with It is realized, can also be realized in the form of software function module in the form of hardware.

If the integrated unit realizes that being not intended as independent product is sold in the form of software function module Or it in use, can be stored in a computer read/write memory medium, based on such understanding, the technical side of the present embodiment The part or all or part of the technical solution that case substantially in other words contributes to the prior art can be produced with software The form of product embodies, which is stored in a storage medium, is used including some instructions so that one Platform computer equipment (can be personal computer, server or the network equipment etc.) or processor (processor) perform sheet The all or part of step of embodiment the method.And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD Etc. the various media that can store program code.

Specifically, the corresponding computer program of method that a kind of determining antenna calibration in the present embodiment starts the time refers to Order can be stored on the storage mediums such as CD, hard disk, USB flash disk, when corresponding with a kind of information processing method in storage medium Computer program instructions read or be performed by an electronic equipment, include the following steps：

Optionally, stored in storage medium and step：It is described to choose uplink/downlink antenna according to preset subframe carrying information Correction starts time corresponding first sub-frame number, including：

Optionally, stored in storage medium and step：It is described according to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset screening strategy obtain the uplink/downlink antenna correction startup time corresponding first subframe Serial number specifically includes：

Optionally, stored in storage medium and step：When the candidate's subframes collection D is not empty, from the candidate son The uplink/downlink antenna correction is chosen in frame collection D and starts time corresponding first sub-frame number, including：

Optionally, stored in storage medium and step：When the candidate's subframes collection D is empty, from setMiddle choosing The uplink/downlink antenna correction is taken to start time corresponding first sub-frame number, including：

Optionally, stored in storage medium and step：Uplink/downlink antenna school is being chosen according to preset subframe carrying information After just starting time corresponding first sub-frame number, the method further includes：

Optionally, stored in storage medium and step：The preset sub-frame interval is according to agreement uplink and downlink HARQ tune Feedback interval is spent to determine；Preferably 4.

Embodiment six

Based on the identical technical concept of previous embodiment, referring to Fig. 8, it illustrates provided in an embodiment of the present invention a kind of true Determine the equipment 80 that antenna calibration starts the time, can include：First communication interface 801, first memory 802, first processor 803 and first bus 804；Wherein,

First bus 804 is for connecting first communication interface 801, the first processor 803 and described the Being in communication with each other between one memory 802 and these devices；

First communication interface 801, for carrying out data transmission with ext nal network element；

The first memory 802, for storing instruction and data；

The first processor 803 performs described instruction and is used for：Uplink/downlink antenna is chosen according to preset subframe carrying information Correction starts time corresponding first sub-frame number；And

In practical applications, above-mentioned first memory 802 can be volatibility first memory (volatile ), such as arbitrary access first memory (RAM, Random-Access Memory) memory；Or non-volatile first storage Device (non-volatile memory), such as read-only first memory (ROM, Read-Only Memory), quick flashing first store Device (flash memory), hard disk (HDD, Hard Disk Drive) or solid state disk (SSD, Solid-State Drive)； Or the combination of the first memory of mentioned kind, and provide instruction and data to first processor 803.

Above-mentioned first processor 803 can be application-specific IC (ASIC, Application Specific Integrated Circuit), digital signal processor (DSP, Digital Signal Processor), Digital Signal Processing Device (DSPD, Digital Signal Processing Device), programmable logic device (PLD, Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate Array), central processing unit At least one of (CPU, Central Processing Unit), controller, microcontroller, microprocessor.It is appreciated that Ground, for different equipment, it can also be other to be used to implement the electronic device of above-mentioned first processor function, and the present invention is implemented Example is not especially limited.

Illustratively, the first processor 803, specifically can be used for：

Preferably, the first processor 803, specifically can be used for：

Preferably, when the candidate's subframes collection D is not empty, the first processor 803 specifically can be used for：

Preferably, when the candidate's subframes collection D is empty, the first processor 803 specifically can be used for：

Illustratively, the first processor 803, is specifically additionally operable to：

Embodiment seven

Based on the identical technical concept of previous embodiment, referring to Fig. 9, it illustrates a kind of days provided in an embodiment of the present invention The method of line correction, can be applied to FDD system, the method may include：

S901：Uplink/downlink antenna correction, which is chosen, according to preset subframe carrying information starts time corresponding first subframe sequence Number；

S902：Uplink antenna correction is obtained according to preset sub-frame interval and first sub-frame number and starts the time pair The second sub-frame number answered；

Specifically, uplink antenna correction starts time corresponding second sub-frame number and starts the time pair with uplink/downlink antenna correction Sub-frame interval △ between the first sub-frame number answered can determine according to according to agreement uplink and downlink HARQ scheduled feedbacks interval, Preferably 4.

S903：Uplink/downlink antenna correction sequence is sent, and in the described second son in the corresponding subframe of first sub-frame number The corresponding subframe of frame number sends uplink antenna correction sequence.

For above-mentioned technical proposal, it should be noted that said program is chosen down by preset subframe carrying information Row antenna calibration starts time corresponding sub-frame number, and chooses uplink antenna correction according to preset sub-frame interval and start the time Corresponding sub-frame number is avoided on the influential subframe of uplink and downlink business, so as to reduce FDD system in antenna calibration to whole The influence that the uplink downlink of a wireless channel generates.

Illustratively, it is described to choose the uplink/downlink antenna correction startup time corresponding first according to preset subframe carrying information Sub-frame number, including：

It is described according to the first subframe collection A, the second subframe collection B, the third subframe during specific implementation Collect C and preset screening strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number, specifically include：

Preferably, when the candidate's subframes collection D is not empty, the uplink/downlink antenna is chosen from the candidate's subframes collection D Correction starts time corresponding first sub-frame number, including：

Preferably, when the candidate's subframes collection D is empty, from setIt is middle to choose the uplink/downlink antenna correction startup Time corresponding first sub-frame number, including：

For the present embodiment, it should be noted that by taking BBU as an example, sending uplink/downlink antenna correction sequence and uplink day Before line correction sequence, also to be corrected in uplink/downlink antenna and start stopping uplink and downlink scheduling at time corresponding first sub-frame number. Therefore, because scheme through this embodiment, uplink/downlink antenna correction starts the time and the uplink antenna correction startup time keeps away The subframe of carrying uplink and downlink business useful information has been opened, therefore, has reduced FDD system when carrying out antenna calibration to upper and lower industry The influence of business.

Embodiment eight

Based on the identical technical concept of previous embodiment, referring to Figure 10, it illustrates one kind provided in an embodiment of the present invention Antenna calibration device 100, described device 100 include：Second chooses module 1001, the second acquisition module 1002 and sending module 1003；Wherein,

Described second chooses module 1001, when starting for choosing uplink/downlink antenna correction according to preset subframe carrying information Between corresponding first sub-frame number；

Second acquisition module 1002, for according to preset sub-frame interval and first sub-frame number acquisition Row antenna calibration starts time corresponding second sub-frame number；

The sending module 1003, for sending uplink/downlink antenna correction sequence in the corresponding subframe of first sub-frame number Row, and send uplink antenna correction sequence in the corresponding subframe of second sub-frame number.

Illustratively, described second module 1001 is chosen, be specifically used for：

Specifically, described second module 1001 is chosen, be specifically used for：

Preferably, described second module 1001 is chosen, described in when the candidate's subframes collection D is not empty, inciting somebody to action Maximum subframe numbers in candidate's subframes collection D are chosen for the uplink/downlink antenna correction and start time corresponding first sub-frame number.

Preferably, described second module 1001 is chosen, specifically for when the candidate's subframes collection D is empty, will gatherIn maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first sub-frame number.

Illustratively, the preset sub-frame interval is determined according to agreement uplink and downlink HARQ scheduled feedbacks interval；It is preferred that It is 4.

Specifically, a kind of corresponding computer program instructions of method of antenna calibration in the present embodiment can be stored On the storage mediums such as CD, hard disk, USB flash disk, when computer program corresponding with a kind of information processing method in storage medium Instruction is read or is performed by an electronic equipment, includes the following steps：

Embodiment nine

Based on the identical technical concept of previous embodiment, referring to Figure 11, it illustrates one kind provided in an embodiment of the present invention Antenna calibration equipment 110 can include：Second communication interface 1101, second memory 1102, second processor 1103 and second Bus 1104；Wherein,

Second bus 1104 is for connecting second communication interface 1101, the second processor 1103 and described Being in communication with each other between second memory 1102 and these devices；

Second communication interface 1101, for carrying out data transmission with ext nal network element；

The second memory 1102, for storing instruction and data；

The second processor 1103 performs described instruction and is used for：Uplink/downlink antenna is chosen according to preset subframe carrying information Correction starts time corresponding first sub-frame number；

And instruction second communication interface 1101 sends uplink/downlink antenna in the corresponding subframe of first sub-frame number Correction sequence, and indicate that second communication interface 1101 sends uplink antenna school in the corresponding subframe of second sub-frame number Positive sequence.

In practical applications, above-mentioned second memory 1102 can be volatibility first memory (volatile ), such as arbitrary access first memory (RAM, Random-Access Memory) memory；Or non-volatile first storage Device (non-volatile memory), such as read-only first memory (ROM, Read-Only Memory), quick flashing first store Device (flash memory), hard disk (HDD, Hard Disk Drive) or solid state disk (SSD, Solid-State Drive)； Or the combination of the first memory of mentioned kind, and provide instruction and data to second processor 1103.

Above-mentioned second processor 1103 can be application-specific IC (ASIC, Application Specific Integrated Circuit), digital signal processor (DSP, Digital Signal Processor), Digital Signal Processing Device (DSPD, Digital Signal Processing Device), programmable logic device (PLD, Programmable Logic Device), field programmable gate array (FPGA, Field Programmable Gate Array), central processing unit At least one of (CPU, Central Processing Unit), controller, microcontroller, microprocessor.It is appreciated that Ground, for different equipment, it can also be other to be used to implement the electronic device of above-mentioned first processor function, and the present invention is implemented Example is not especially limited.

Illustratively, the second processor 1103, is used for：

Specifically, the second processor 1103, is used for：

Preferably, the second processor 1103, is used for：

Illustratively, the preset sub-frame interval is determined according to agreement uplink and downlink HARQ scheduled feedbacks interval, preferably It is 4.

Embodiment ten

Based on the identical technical concept of previous embodiment, referring to Figure 12, it illustrates one kind provided in an embodiment of the present invention Antenna calibration system 120, the system can include：BBU 130 and radio frequency remote unit RRU 140；The BBU 130, is used for Uplink/downlink antenna correction, which is chosen, according to preset subframe carrying information starts time corresponding first sub-frame number；And

By carrying out uplink and downlink antenna calibration with interacting for the RRU 140；；

The RRU 140, for carrying out uplink and downlink antenna calibration with interacting for the BBU 130.

Illustratively, the BBU 130, is specifically used for：

Specifically, the BBU 130, is specifically used for：

Optionally, the BBU 130, is specifically used for：

Illustratively, for uplink and downlink antenna calibration, in one kind preferably implements scheme, the BBU 130 is specific to use In the corresponding subframe of first sub-frame number to the RRU 140 send uplink/downlink antenna correction sequence；

Correspondingly, the RRU 140, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU 130, passes through After sendaisle sends out correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU 130；The sensor gain and phase uncertainties that each channel receives signal are measured by BBU130, calculate downlink correction weights.

And the RRU 140 sends uplink antenna correction sequence in the corresponding subframe of second sub-frame number, in school After quasi- port sends out correction reference signal, coupled circuit is fed to receiving channel, returns to the BBU 130.By BBU130 The sensor gain and phase uncertainties that each channel receives signal are measured, calculate uplink correction weights.

Illustratively, for uplink and downlink antenna calibration, in another kind preferably implements scheme, the BBU 130, specifically For sending uplink/downlink antenna correction sequence to the RRU 140 in the corresponding subframe of first sub-frame number.

The RRU 140, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU 130 are logical by sending After road sends out correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU 130；By BBU130 measures the sensor gain and phase uncertainties that each channel receives signal, calculates downlink correction weights.

The BBU130, specifically for sending uplink to the RRU 140 in the corresponding subframe of second sub-frame number Antenna calibration sequence；

The RRU 140, the uplink antenna correction sequence sent specifically for receiving the BBU 130, in calibration port After sending out correction reference signal, coupled circuit is fed to receiving channel, returns to the BBU 130.It is measured by BBU130 each Channel receives the sensor gain and phase uncertainties of signal, calculates uplink correction weights.

Illustratively, for uplink and downlink antenna calibration, in another preferably implements scheme, the BBU 130 is used for The correction of 140 uplink/downlink antennas of RRU is notified to start the time；

The RRU140 for sending uplink/downlink antenna correction sequence in the corresponding subframe of the first sub-frame number, passes through transmission After channel sends out correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU 130；By BBU130 measures the sensor gain and phase uncertainties that each channel receives signal, calculates downlink correction weights.

And the RRU140 sends uplink antenna correction sequence in the corresponding subframe of the second sub-frame number, in calibration terminal After mouth sends out correction reference signal, coupled circuit is fed to receiving channel, returns to the BBU130.It is measured by BBU130 each Channel receives the sensor gain and phase uncertainties of signal, calculates uplink correction weights.

Specific technical solution explanation, in fig. 13, downlink day are carried out by taking the antenna calibration system 120 shown in Figure 13 as an example Line correction sequence is sent by BBU 130, and RRU 140 receives the uplink/downlink antenna correction sequence that the BBU 130 is sent, and will connect The uplink/downlink antenna correction sequence of receipts returns to the BBU 130.RRU 140 is sent in the corresponding subframe of second sub-frame number Uplink antenna correction sequence, and the uplink antenna correction sequence of reception is returned into the BBU 130.It is to be appreciated that Figure 13 Shown antenna calibration system 120 is only used for the explanation of technical solution, and those skilled in the art can illustrate the technical program Using other preferred implementations with aforementioned exemplary, the present embodiment does not repeat this.The antenna calibration system 120, this is System can include：BBU 130 and radio frequency remote unit RRU 140；Wherein, BBU can include scheduler (SCH, SCHeduler) Device 1301 and physical layer PHY (PHYsical Layer) device 1302；Specifically, SCH devices 1301 can include Fig. 5 and figure First in antenna calibration device 50 shown in 7 chooses 501 and first acquisition module 503 of module and scheduler module 13011；And PHY device 1302 can include correction sequence generation module 502 and message processing module in antenna calibration device 50 13021st, receiving module 13022 and correction module 13023；RRU 140 can include receiving module 1401 and sending module 1402；

During the realization of specific correcting scheme, obtained first by the first selection module 501 and first in SCH devices 1301 Modulus block 503 obtains uplink/downlink antenna correction and starts time frame number and subframe numbers and uplink antenna correction startup time frame number and son Frame number and the message processing module 13021 for being sent to PHY device 1302, the scheduler module 13011 in SCH devices 1301 is in downlink Antenna calibration Startup time stops uplink and downlink scheduling, and the message processing module 13021 of PHY device is issued according to SCH devices 1301 Uplink/downlink antenna correction start the time stop down physical channel transmitting, to correction sequence generation module 502 and receiving module 13022 send initiation message.After initiation message is received, correction sequence generation module 502 starts uplink/downlink antenna correction.It gives RRU 140 sends correction antenna sequence.

Specifically, uplink/downlink antenna timing, using antenna sets wheel originating party formula, 8 one group of transmission channels are simultaneously emitted by every time Correction reference signal, coupled circuit are fed to calibration port receiving channel, temporary by the receiving module 13022 of PHY device 1302 The correction signal of the antenna sets is deposited, then changes an antenna sets, until all transmission channel rotation one time, last PHY device 1302 receiving module 13022 measures the amplitude-phase inconsistency for the signal that each channel receives, and is calculated by correction module 13023 Go out downlink correction weights.

Due to the requirement that coupling circuit can not accomplish " wait differential losses, etc. phase shifts ", it is therefore desirable to measure in advance coupling circuit from The difference between channels of body when calculating correction weights, need first eliminate coupling channel inconsistency, then calculate correction weights.

Uplink antenna correction starts preset 4 subframes of sub-frame interval after downlink starts subframe and starts, by RRU140 It generates antenna calibration sequence and sends out correction reference signal in calibration port, coupled circuit is fed to each receiving channel, BBU 130 receiving module 13022 measures the amplitude-phase inconsistency for the signal that each channel receives, by the correction of PHY device 1302 Module 13023 calculates uplink correction weights.Calibration function corrects channel amplitude, phase.

Receiving module 1401 in RRU 140 is used to receive the antenna calibration sequence of the transmissions of BBU 130；Sending module 1402 For the correction sequence of reception to be returned to BBU 130.

It is to be appreciated that also can uplink/downlink antenna correction sequence be generated by RRU140.By BBU130 notice RRU140 downlinks day Line correction starts the time, antenna uplink/downlink antenna correction sequence is generated in the corresponding subframe RRU140 of the first sub-frame number, under realization Row antenna sequence is sent.Sending module 1402 is used to the uplink/downlink antenna correction sequence of reception returning to BBU 130.

It is to be appreciated that BBU130 can also generate uplink antenna correction sequence, receiving BBU 130 by RRU 140 sends Uplink antenna correction sequence, sending module 1402 is used to the uplink antenna correction sequence of reception returning to BBU 130.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the shape of the embodiment in terms of hardware embodiment, software implementation or combination software and hardware can be used in the present invention Formula.Moreover, the present invention can be used can use storage in one or more computers for wherein including computer usable program code The form of computer program product that medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of method that determining antenna calibration starts the time, which is characterized in that the method is applied to Frequency Division Duplex FDD system System, the method includes：

2. according to the method described in claim 1, it is characterized in that, described choose downlink day according to preset subframe carrying information Line correction starts time corresponding first sub-frame number, including：

The first subframe is obtained according to for carrying the sub-frame number of broadcast channel, synchronizing signal, system information and paging information Collect A；

It is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset screening strategy The uplink/downlink antenna correction starts time corresponding first sub-frame number.

It is 3. according to the method described in claim 2, it is characterized in that, described according to the first subframe collection A, second subframe Collect B, the third subframe collection C and preset screening strategy and obtain the uplink/downlink antenna correction startup time corresponding first son Frame number specifically includes：

Candidate's subframes collection is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and formula 1 D；

When the candidate's subframes collection D is not empty, sub-frame number is arbitrarily chosen from the candidate's subframes collection D as under described Row antenna calibration starts time corresponding first sub-frame number；

When the candidate's subframes collection D is empty, from setIn arbitrarily choose sub-frame number and corrected as the uplink/downlink antenna Start time corresponding first sub-frame number.

4. according to the method described in claim 3, it is characterized in that, when the candidate's subframes collection D is not empty, from the candidate The uplink/downlink antenna correction is chosen in subframe collection D and starts time corresponding first sub-frame number, including：

Maximum subframe numbers in the candidate's subframes collection D are chosen for the uplink/downlink antenna correction and start time corresponding first son Frame number.

5. according to the method described in claim 3, it is characterized in that, when the candidate's subframes collection D is empty, from setIn It chooses the uplink/downlink antenna correction and starts time corresponding first sub-frame number, including：

It will setIn maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first sub-frame number.

6. method according to any one of claims 1 to 5, which is characterized in that selected according to preset subframe carrying information After removing row antenna calibration startup time corresponding first sub-frame number, the method further includes：

Uplink antenna correction is obtained according to preset sub-frame interval and first sub-frame number and starts the time corresponding second Sub-frame number；

7. according to the method described in claim 6, it is characterized in that, the preset sub-frame interval is mixed according to agreement uplink and downlink Automatic repeat request HARQ scheduled feedbacks interval determines.

8. a kind of determining antenna calibration starts the device of time, which is characterized in that described device is applied to Frequency Division Duplex FDD system System, including：First chooses module and correction sequence generation module, wherein；

Described first chooses module, corresponding for choosing the uplink/downlink antenna correction startup time according to preset subframe carrying information First sub-frame number；

The correction sequence generation module, for carrying out uplink/downlink antenna correction in the corresponding subframe of first sub-frame number.

9. device according to claim 8, which is characterized in that the first selection module includes：First acquisition submodule, Second acquisition submodule, third acquisition submodule and screening submodule；Wherein,

First acquisition submodule, according to for carrying broadcast channel, synchronizing signal, system information and the son of paging information Frame number obtains the first subframe collection A；

The third acquisition submodule obtains the according to for carrying the sub-frame number of Physical Random Access Channel PRACH resources Three subframe collection C；

The screening submodule, for according to the first subframe collection A, the second subframe collection B, the third subframe collection C with And preset screening strategy obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number.

10. device according to claim 9, which is characterized in that the screening submodule is used for：

Candidate's subframes collection is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and formula 2 D；

11. device according to claim 10, which is characterized in that the screening submodule, for working as the candidate's subframes When collection D is not empty, the maximum subframe numbers in the candidate's subframes collection D are chosen for the uplink/downlink antenna correction and start time correspondence The first sub-frame number.

12. device according to claim 10, which is characterized in that the screening submodule, for working as the candidate's subframes When collecting D for sky, it will gatherIn maximum subframe numbers be chosen for uplink/downlink antenna correction and start time corresponding first son Frame number.

13. device according to claim 8, which is characterized in that described device further includes：First acquisition module, for root Uplink antenna correction, which is obtained, according to preset sub-frame interval and first sub-frame number starts time corresponding second subframe sequence Number；

The correction sequence generation module is additionally operable to carry out uplink antenna correction in the corresponding subframe of second sub-frame number.

14. device according to claim 13, which is characterized in that the preset sub-frame interval is mixed according to agreement uplink and downlink Automatic repeat request HARQ scheduled feedbacks interval is closed to determine.

15. the equipment that a kind of determining antenna calibration starts the time, which is characterized in that the equipment includes：First communication interface, One memory, first processor and the first bus；Wherein,

First bus for connect first communication interface, the first processor and the first memory and this Being in communication with each other between a little devices；

The first memory, for storing instruction and data；

The first processor performs described instruction and is used for：Uplink/downlink antenna correction is chosen according to preset subframe carrying information to start Time corresponding first sub-frame number；And

16. equipment according to claim 15, which is characterized in that the first processor is specifically used for：

The first subframe is obtained according to for carrying the sub-frame number of broadcast channel, synchronizing signal, system information and paging information Collect A；And

17. equipment according to claim 16, which is characterized in that the first processor is specifically used for：

Candidate's subframes collection is obtained according to the first subframe collection A, the second subframe collection B, the third subframe collection C and following formula D；

And when the candidate's subframes collection D is not empty, sub-frame number is arbitrarily chosen as institute from the candidate's subframes collection D It states uplink/downlink antenna correction and starts time corresponding first sub-frame number；

And when the candidate's subframes collection D is empty, from setIn arbitrarily choose sub-frame number as the downlink day Line correction starts time corresponding first sub-frame number.

18. equipment according to claim 17, which is characterized in that the first processor is specifically used for：

When the candidate's subframes collection D is not empty, the maximum subframe numbers in the candidate's subframes collection D are chosen for the downlink day Line correction starts time corresponding first sub-frame number；

When the candidate's subframes collection D is empty, will gatherIn maximum subframe numbers be chosen for uplink/downlink antenna correction and open Corresponding first sub-frame number of dynamic time.

19. according to claim 15 to 18 any one of them equipment, which is characterized in that the first processor is additionally operable to：

Uplink antenna correction is obtained according to preset sub-frame interval and first sub-frame number and starts the time corresponding second Sub-frame number；And

A kind of 20. method of antenna calibration, which is characterized in that the method is applied to FDD system, the method packet It includes：

Uplink/downlink antenna correction sequence is sent, and correspond in second sub-frame number in the corresponding subframe of first sub-frame number Subframe send uplink antenna correction sequence.

21. according to the method for claim 20, which is characterized in that described to choose downlink according to preset subframe carrying information Antenna calibration starts time corresponding first sub-frame number, including：

22. according to the method for claim 21, which is characterized in that it is described according to the first subframe collection A, it is described second son Frame collection B, the third subframe collection C and preset screening strategy obtain the uplink/downlink antenna correction and start the time corresponding first Sub-frame number specifically includes：

When the candidate's subframes collection D is not empty, downlink day described in sub-frame number is arbitrarily chosen from the candidate's subframes collection D Line correction starts time corresponding first sub-frame number；

23. according to the method for claim 22, which is characterized in that when the candidate's subframes collection D is not empty, from the time It selects and the uplink/downlink antenna correction startup time corresponding first sub-frame number is chosen in subframe collection D, including：

24. according to the method for claim 22, which is characterized in that when the candidate's subframes collection D is empty, from set It is middle to choose the uplink/downlink antenna correction startup time corresponding first sub-frame number, including：

25. according to claim 20 to 24 any one of them method, which is characterized in that the preset sub-frame interval is according to association Uplink and downlink hybrid automatic repeat-request HARQ scheduled feedbacks interval is discussed to determine.

26. a kind of antenna calibration device, which is characterized in that described device includes：Second chooses module, the second acquisition module and hair Send module；Wherein,

Described second chooses module, corresponding for choosing the uplink/downlink antenna correction startup time according to preset subframe carrying information First sub-frame number；

Second acquisition module, for obtaining uplink antenna school according to preset sub-frame interval and first sub-frame number It is positive to start time corresponding second sub-frame number；

The sending module, for sending uplink/downlink antenna correction sequence, and in institute in the corresponding subframe of first sub-frame number It states the corresponding subframe of the second sub-frame number and sends uplink antenna correction sequence.

27. device according to claim 26, which is characterized in that described second chooses module, is specifically used for：

And according to the first subframe collection A, the second subframe collection B, the third subframe collection C and preset screening plan It slightly obtains the uplink/downlink antenna correction and starts time corresponding first sub-frame number.

28. device according to claim 27, which is characterized in that described second chooses module, is specifically used for：

And when the candidate's subframes collection D is not empty, under arbitrarily being chosen described in sub-frame number from the candidate's subframes collection D Row antenna calibration starts time corresponding first sub-frame number；

And when the candidate's subframes collection D is empty, from setIn arbitrarily choose sub-frame number as the uplink/downlink antenna Correction starts time corresponding first sub-frame number.

29. device according to claim 28, which is characterized in that described second chooses module, specifically for working as the time When selecting subframe collection D for sky, when the maximum subframe numbers in the candidate's subframes collection D are chosen for the uplink/downlink antenna correction startup Between corresponding first sub-frame number.

30. device according to claim 28, which is characterized in that described second chooses module, specifically for working as the time When selecting subframe collection D as sky, it will gatherIn maximum subframe numbers be chosen for uplink/downlink antenna correction to start the time corresponding First sub-frame number.

31. according to claim 26 to 30 any one of them device, which is characterized in that the preset sub-frame interval is according to association Uplink and downlink hybrid automatic repeat-request HARQ scheduled feedbacks interval is discussed to determine.

32. a kind of antenna calibration equipment, which is characterized in that the equipment includes：Second communication interface, second memory, second Processor and the second bus；Wherein,

Second bus for connect second communication interface, the second processor and the second memory and this Being in communication with each other between a little devices；

The second memory, for storing instruction and data；

The second processor performs described instruction and is used for：Uplink/downlink antenna correction is chosen according to preset subframe carrying information to start Time corresponding first sub-frame number；

It is and corresponding according to preset sub-frame interval and first sub-frame number acquisition uplink antenna correction startup time Second sub-frame number；

And instruction second communication interface sends uplink/downlink antenna correction sequence in the corresponding subframe of first sub-frame number Row, and indicate that second communication interface sends uplink antenna correction sequence in the corresponding subframe of second sub-frame number.

33. equipment according to claim 32, which is characterized in that the second processor is used for：

34. equipment according to claim 33, which is characterized in that the second processor is used for：

When the candidate's subframes collection D is not empty, uplink/downlink antenna described in sub-frame number is arbitrarily chosen from the candidate's subframes collection D Correction starts time corresponding first sub-frame number；

35. equipment according to claim 34, which is characterized in that the second processor is used for：

And when the candidate's subframes collection D is empty, it will gatherIn maximum subframe numbers be chosen for the uplink/downlink antenna school It is positive to start time corresponding first sub-frame number.

36. according to claim 32 to 35 any one of them equipment, which is characterized in that the preset sub-frame interval is according to association Uplink and downlink hybrid automatic repeat-request HARQ scheduled feedbacks interval is discussed to determine.

37. a kind of antenna calibration system, which is characterized in that the system comprises：Baseband processing unit BBU and Remote Radio Unit RRU；Wherein,

The BBU starts time corresponding first subframe for choosing uplink/downlink antenna correction according to preset subframe carrying information Serial number；And

38. the system according to claim 37, which is characterized in that the BBU is specifically used for：

39. the system according to claim 38, which is characterized in that the BBU is specifically used for：

40. system according to claim 39, which is characterized in that the BBU is specifically used for：

41. the system according to claim 37, which is characterized in that the BBU, specifically in first sub-frame number Corresponding subframe sends uplink/downlink antenna correction sequence to the RRU；

Correspondingly, the RRU, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU, is sent out by sendaisle After correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

And the RRU sends uplink antenna correction sequence in the corresponding subframe of second sub-frame number, is sent out in calibration port After going out correction reference signal, coupled circuit is fed to receiving channel, returns to the BBU.

42. the system according to claim 37, which is characterized in that the BBU, specifically in first sub-frame number Corresponding subframe sends uplink/downlink antenna correction sequence to the RRU；

The RRU, the uplink/downlink antenna correction sequence sent specifically for receiving the BBU send out correction ginseng by sendaisle After examining signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

The BBU, specifically for sending uplink antenna correction sequence to the RRU in the corresponding subframe of second sub-frame number Row；

The RRU, the uplink antenna correction sequence sent specifically for receiving the BBU send out correction reference in calibration port After signal, coupled circuit is fed to receiving channel, returns to the BBU.

43. the system according to claim 37, which is characterized in that the BBU, for notifying the RRU uplink/downlink antennas school It is positive to start the time；

The RRU for sending uplink/downlink antenna correction sequence in the corresponding subframe of the first sub-frame number, is sent out by sendaisle After correction reference signal, coupled circuit is fed to calibration port receiving channel, returns to the BBU；

The RRU sends uplink antenna correction sequence in the corresponding subframe of the second sub-frame number, and correction ginseng is sent out in calibration port After examining signal, coupled circuit is fed to receiving channel, returns to the BBU.