CN104980382B

CN104980382B - A kind of data processing method and device of multiple RRU of cell altogether

Info

Publication number: CN104980382B
Application number: CN201510371687.4A
Authority: CN
Inventors: 陈曦; 邹志强
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2015-06-29
Filing date: 2015-06-29
Publication date: 2018-10-30
Anticipated expiration: 2035-06-29
Also published as: CN104980382A; WO2017000699A1

Abstract

The embodiment of the invention discloses a kind of data processing method and device of multiple RRU of cell altogether.Method provided in an embodiment of the present invention includes：The time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, and the time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU；The subscriber signal for including according to the corresponding frequency domain datas of each RRU detects user's effective bandwidth in the corresponding frequency domain datas of each RRU；Frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU is disposed, the frequency domain data for including the subscriber signal is obtained；The frequency domain data comprising the subscriber signal is merged respectively according to the corresponding channels RRU, the frequency domain data comprising the subscriber signal after merging is sent to baseband processing unit BBU.

Description

A kind of data processing method and device of multiple RRU of cell altogether

Technical field

The present invention relates to field of communication technology more particularly to a kind of data processing methods and dress of multiple RRU of cell altogether It sets.

Background technology

In multiple Remote Radio Unit (full name in English：Radio Remote Unit, english abbreviation：RRU) the solution of total cell Certainly in scheme, the same baseband processing unit (full name in English：Base Band Unit, english abbreviation：BBU multiple RRU under) Although distribution is in different geographical locations, logically belong to the same cell, so the cell of each RRU configures parameter It is all identical.The solution that multiple RRU are total to cell is mainly used in indoor distributed scene and outdoor high-speed scene etc., such as greatly Signal covering along the covering of type building and high ferro.The solution that multiple RRU are total to cell can be obviously improved MPS process Ability reduces cell switching times, promotes user experience.

In the solution that multiple RRU are total to cell, for uplink, BBU can receive the more of different RRU The upstream data in a channel.BBU is aligned the antenna data that in the processing of upstream data, BBU gets all RRU, so Afterwards subsequent processing is carried out according to the data processing method of common multi-antenna cell.The antenna data of mutiple antennas is carried out respectively Channel estimation respectively obtains the channel estimation results of all antennas, while carrying out joint equalization to the frequency domain data of all antennas Detection.The processing mode of joint equalization detection is similar with the processing of common multi-antenna cell, although process flow is simple, Since the number of antenna needs simultaneously to handle more antenna datas with the growth of the RRU numbers of total cell, this Mean that required baseband processing resource can be sharply increased with the increase of number of antennas to be treated, this is obviously difficult To support the processing to the upstream data of greater number of RRU.

In order to reduce the demand to baseband processing resource, increases the quantity of the RRU of the total cell of support, deposit in the prior art In following a solution：It please refers to as shown in Figure 1, to carry out time domain to the upstream data of multiple RRU in the prior art On cumulative realization method schematic diagram, merged with the upstream data of four RRU (be respectively RRU1, RRU2, RRU3 and RRU4) For, each RRU, which is exported, in RRU1, RRU2, RRU4 has upstream data and bottom to make an uproar, and RRU3 outputs bottom is made an uproar, according to the quantity of RRU Adding up in time domain first is carried out to the upstream data of part or all of RRU with the occupancy situation of baseband processing resource, then will be added up Upstream data afterwards passes to BBU and carries out subsequent processing.The upstream data of multiple RRU is merged into a upstream data by this method, To reduce demands of the BBU to baseband processing resource.But this upstream data to multiple RRU carries out cumulative mode, Can make an uproar to the upstream data of multiple RRU corresponding channels and bottom and is all added up, as shown in Figure 1, bottom make an uproar cumulative can cause to tire out Rear total interference noise power is added to increase, i.e., the lifting that bottom can be brought to make an uproar will necessarily influence the receptivity of uplink, especially When being that the quantity of supported RRU is more, due to needing combined upstream data also accordingly to increase so that bottom is made an uproar the asking of lifting Topic is more prominent.

Invention content

An embodiment of the present invention provides a kind of data processing method and device of multiple RRU of cell altogether, for realizing right The merging of the upstream data of multiple RRU, and the lifting that bottom will not be caused to make an uproar.

In order to solve the above technical problems, the embodiment of the present invention provides following technical scheme：

In a first aspect, the embodiment of the present invention provides a kind of data processing method of multiple RRU of cell altogether, including：

The time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, and the time domain data of each RRU is turned Change the corresponding frequency domain datas of each RRU into；

The subscriber signal for including according to the corresponding frequency domain datas of each RRU detects that each RRU is corresponding User's effective bandwidth in frequency domain data；

Frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU is clear It removes, obtains the frequency domain data for including the subscriber signal；

The frequency domain data comprising the subscriber signal is merged respectively according to the corresponding channels RRU, after merging Including the frequency domain data of the subscriber signal is sent to baseband processing unit BBU.

With reference to first aspect, described according to described each RRU pairs in the first possible realization method of first aspect The subscriber signal that the frequency domain data answered includes detects user's effective bandwidth in the corresponding frequency domain datas of each RRU, Including：

It is detected in the corresponding frequency domain datas of each RRU according to the scheduling information of all user equipment (UE)s of the cell Whether include the subscriber signal；

Include the frequency domain data of the subscriber signal for detecting, then the subscriber signal detected is subjected to uplink User effective bandwidth of the occupied frequency range of scheduled transmission as the frequency domain data；

Do not include the frequency domain data of the subscriber signal for detecting, then will not include the frequency domain number of the subscriber signal According to user's effective bandwidth be set to zero.

The possible realization method of with reference to first aspect the first, in second of possible realization method of first aspect In, the scheduling information of all user equipment (UE)s according to the cell detects in the corresponding frequency domain datas of each RRU Whether include the subscriber signal, including：

The scheduling information of all UE of the cell is got from the BBU；

Get each UE's of the cell from the corresponding frequency domain datas of each RRU according to the scheduling information Uplink pilot signal；

Cross-correlation calculation is carried out according to the uplink pilot signal of each UE of the cell and pilot frequency sequence, it is mutual to obtain pilot tone Correlated results；

If the pilot tone cross correlation results are more than preset pilot threshold, detected in frequency domain data including the use Family signal detects not in frequency domain data if the pilot tone cross correlation results are less than or equal to the pilot threshold and includes The subscriber signal.

The possible realization method of with reference to first aspect the first, in the third possible realization method of first aspect In, the scheduling information of all user equipment (UE)s according to the cell detects in the corresponding frequency domain datas of each RRU Whether include the subscriber signal, including：

The scheduling information of all UE of the cell is got from the BBU；

According to the scheduling information measure each UE of the cell the corresponding frequency domain datas of each RRU uplink Reference Signal Received Power RSRP；

If the uplink RSRP is more than preset power threshold, detects in frequency domain data and believe including the user Number, if the uplink RSRP is less than or equal to the power threshold, detect not include that the user believes in frequency domain data Number.

With reference to first aspect, in the 4th kind of possible realization method of first aspect, if each RRU includes N number of Channel, the corresponding frequency domain data of each RRU include：Corresponding to the roads the N frequency domain data in N number of channel, the N is to be more than or wait In 2 natural number,

The subscriber signal for including according to the corresponding frequency domain datas of each RRU detects described each RRU pairs User's effective bandwidth in the frequency domain data answered, including：

The corresponding arbitrary two-way frequency domain datas of the same RRU in the frequency domain data of the roads N are subjected to cross-correlation calculation, are obtained Data cross correlation results；

If the data cross correlation results are more than preset data threshold, the arbitrary two-way frequency domain data is corresponding Scheduling has subscriber signal in the coverage area of RRU, using the maximum transmission bandwidth of system configuration as the arbitrary two-way frequency domain number According to user's effective bandwidth；

If the cross correlation results are less than or equal to the dependent threshold, the arbitrary two-way frequency domain data is corresponding Without scheduling subscriber signal in the coverage area of RRU, user's effective bandwidth of the arbitrary two-way frequency domain data is set to zero.

With reference to first aspect, described according to described each RRU pairs in the 5th kind of possible realization method of first aspect The subscriber signal that the frequency domain data answered includes detects user's effective bandwidth in the corresponding frequency domain datas of each RRU, Including：

The gross energy of all subcarriers in each resource block RB in the corresponding frequency domain datas of each RRU is counted successively；

Determine that the gross energy of all subcarriers in frequency domain data is in the user of the frequency domain data more than the RB of energy threshold Within effective bandwidth, determines that the gross energy of all subcarriers in frequency domain data is in less than or equal to the RB of the energy threshold and be somebody's turn to do Except user's effective bandwidth of frequency domain data；

The RB that the gross energy of all subcarriers in frequency domain data is more than to energy threshold adds up, and obtains the frequency domain data User's effective bandwidth.

Second aspect, the embodiment of the present invention also provide a kind of data processing equipment of multiple RRU of cell altogether, including：

Time-frequency convert module will be every for receiving the time domain data that each RRU is sent in multiple RRU of cell altogether respectively The time domain data of a RRU is converted into the corresponding frequency domain datas of each RRU；

Bandwidth detection module, the subscriber signal for including according to the corresponding frequency domain datas of each RRU detect User's effective bandwidth in the corresponding frequency domain data of each RRU；

Data dump module, for by frequency values in the corresponding frequency domain datas of each RRU in the effective band of the user Frequency domain data other than width is disposed, and the frequency domain data for including the subscriber signal is obtained；

Frequency domain combination module, for according to the corresponding channels RRU to the frequency domain data comprising the subscriber signal respectively into Row merges, and the frequency domain data comprising the subscriber signal after merging is sent to baseband processing unit BBU.

In conjunction with second aspect, in the first possible realization method of second aspect, the bandwidth detection module, packet It includes：

Subscriber signal detection unit, the scheduling information detection for all user equipment (UE)s according to the cell are described every Whether include the subscriber signal in the corresponding frequency domain data of a RRU；

First effective bandwidth acquiring unit, the frequency domain data for including the subscriber signal for detecting then will inspection The subscriber signal measured carries out the effective band of user that uplink scheduling transmits occupied frequency range as the frequency domain data It is wide；Do not include the frequency domain data of the subscriber signal for detecting, then will not include the frequency domain data of the subscriber signal User's effective bandwidth is set to zero.

In conjunction with the first possible realization method of second aspect, in second of possible realization method of second aspect In, the subscriber signal detection unit, including：

Scheduling information acquiring unit, the scheduling information of all UE for getting the cell from the BBU；

Pilot signal acquiring unit, for being obtained from the corresponding frequency domain datas of each RRU according to the scheduling information Get the uplink pilot signal of each UE of the cell；

First cross-correlation calculation unit, for according to the uplink pilot signal of each UE of the cell and pilot frequency sequence into Row cross-correlation calculation obtains pilot tone cross correlation results；

First analytic unit, if being more than preset pilot threshold for the pilot tone cross correlation results, in frequency domain data In detect including the subscriber signal, if the pilot tone cross correlation results be less than or equal to the pilot threshold, in frequency domain Detect not include the subscriber signal in data.

In conjunction with the first possible realization method of second aspect, in the third possible realization method of second aspect In, the subscriber signal detection unit, including：

Measuring unit, each UE for measuring the cell according to the scheduling information are corresponding in each RRU The uplink reference signals of frequency domain data receive power RSRP；

Second analytic unit detects if being more than preset power threshold for the uplink RSRP in frequency domain data It is detected in frequency domain data to including the subscriber signal if the uplink RSRP is less than or equal to the power threshold It does not include the subscriber signal.

In conjunction with second aspect, in the 4th kind of possible realization method of second aspect, if each RRU includes N number of Channel, the corresponding frequency domain data of each RRU include：Corresponding to the roads the N frequency domain data in N number of channel, the N is to be more than or wait In 2 natural number,

The bandwidth detection module, including：

Second cross-correlation calculation unit is used for the corresponding arbitrary two-way frequency domains of the same RRU in the frequency domain data of the roads N Data carry out cross-correlation calculation, obtain data cross correlation results；

Second effective bandwidth acquiring unit, if being more than preset data threshold, institute for the data cross correlation results Stating scheduling in the coverage area of the corresponding RRU of arbitrary two-way frequency domain data has subscriber signal, by the maximum transmitted band of system configuration Wide user's effective bandwidth as the arbitrary two-way frequency domain data；If the cross correlation results are less than or equal to the associated gate Limit, then without scheduling subscriber signal in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data, by the arbitrary two-way User's effective bandwidth of frequency domain data is set to zero.

In conjunction with second aspect, in the 5th kind of possible realization method of second aspect, the bandwidth detection module, packet It includes：

Energy statistics unit, for counting in the corresponding frequency domain datas of each RRU institute in each resource block RB successively There is the gross energy of subcarrier；

Resource block detection unit, for determining that the gross energy of all subcarriers in frequency domain data is more than at the RB of energy threshold Within user's effective bandwidth of the frequency domain data, it is described to determine that the gross energy of all subcarriers in frequency domain data is less than or equal to The RB of energy threshold is in except user's effective bandwidth of the frequency domain data；

Third effective bandwidth acquiring unit, for the gross energy of all subcarriers in frequency domain data to be more than energy threshold RB is added up, and user's effective bandwidth of the frequency domain data is obtained.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages：

In embodiments of the present invention, the time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively first, The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU, then according to the corresponding frequency domain datas of each RRU The subscriber signal for including detects user's effective bandwidth in the corresponding frequency domain datas of each RRU, next by each RRU pairs Frequency domain data of the frequency values other than user's effective bandwidth is disposed in the frequency domain data answered, and obtains the frequency domain for including subscriber signal Data finally merge the frequency domain data comprising subscriber signal according to the corresponding channels RRU respectively, will include after merging The frequency domain data of subscriber signal is sent to baseband processing unit BBU.The time domain number of each RRU of total cell in the embodiment of the present invention According to frequency domain data is converted into, in order to carry out the detection of user's effective bandwidth on frequency domain, it is right in the prior art that this is different from The data of RRU carry out the merging in time domain, and the use in the embodiment of the present invention in the corresponding frequency domain datas of each RRU of determination After the effective bandwidth of family, the clear of out-of-band noise can also be carried out to the corresponding frequency domain datas of each RRU according to user's effective bandwidth It removes, only retains the frequency domain data comprising subscriber signal and merge, avoid the superposition of noise between different RRU, avoid existing Bottom present in technology is made an uproar lifting problem, the frequency domain data to improve RRU merge after signal-to-noise ratio, improve uplink receiving Energy.

Description of the drawings

In order to illustrate more clearly of the technical solution in the prior art and the embodiment of the present invention, below will to the prior art with And attached drawing needed in description of the embodiment of the present invention is briefly described, it should be apparent that, the accompanying drawings in the following description Only some embodiments of the present invention can also be obtained according to these attached drawings other to those skilled in the art Attached drawing.

Fig. 1 is the cumulative realization method schematic diagram carried out in the prior art to the upstream data of multiple RRU in time domain；

Fig. 2 is that the data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention is applied to distributed base station Configuration diagram；

Fig. 3 is that a kind of process blocks of data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention are shown It is intended to；

Fig. 4 provides the realization scene that four RRU of total cell are carried out with the data on frequency domain and is merged for the embodiment of the present invention Schematic diagram；

Fig. 5 is the process blocks of another data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention Schematic diagram；

Fig. 6 is the process blocks of another data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention Schematic diagram；

Fig. 7 is the process blocks of another data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention Schematic diagram；

Fig. 8-a are a kind of composed structure of data processing equipment of multiple RRU of cell altogether provided in an embodiment of the present invention Schematic diagram；

Fig. 8-b are a kind of composed structure schematic diagram of bandwidth detection module provided in an embodiment of the present invention；

Fig. 8-c are a kind of composed structure schematic diagram of subscriber signal detection unit provided in an embodiment of the present invention；

Fig. 8-d are the composed structure schematic diagram of another subscriber signal detection unit provided in an embodiment of the present invention；

Fig. 8-e are the composed structure schematic diagram of another bandwidth detection module provided in an embodiment of the present invention；

Fig. 8-f are the composed structure schematic diagram of another bandwidth detection module provided in an embodiment of the present invention；

Fig. 9 is the composed structure of another data processing equipment of multiple RRU of cell altogether provided in an embodiment of the present invention Schematic diagram.

Specific implementation mode

In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below Embodiment be only a part of the embodiment of the present invention, and not all embodiments.Based on the embodiments of the present invention, this field The every other embodiment that technical staff is obtained, shall fall within the protection scope of the present invention.

Term " first ", " second " in description and claims of this specification and above-mentioned attached drawing etc. are for distinguishing Similar object, without being used to describe specific sequence or precedence.It should be appreciated that the term used in this way is in appropriate feelings It can be interchanged under condition, this is only the object used differentiation in description described in the embodiment of the present invention to same alike result Mode.In addition, term " comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, so as to Including a series of process of units, method, system, product or equipment are not necessarily limited to those units, but may include unclear Other units that ground is listed or for these processes, method, product or equipment inherently.

The application scenarios of the data processing method of multiple RRU of cell altogether provided in an embodiment of the present invention are said first Bright, method provided in an embodiment of the present invention can be applied in distributed base station between BBU and RRU in data transmission procedure, this hair Bright long term evolution (the full name in English for being mainly used in multiple RRU and being total to cell：Long Term Evolution, english abbreviation： LTE) system, application scenarios include indoor distributed scene and outdoor high-speed scene etc., such as large buildings covering and high ferro Signal covering along the line.Indoor distributed covering is carried out in such a way that multiple RRU are total to cell, different RRU is under the jurisdiction of identical Cell, it is possible to reduce handover/reselection frequency, reduce frequent switching caused by call drop, promoted KPI Key Performance Indicator (English Full name：Key Performance Indicator, english abbreviation：KPI) index.The reduction of cell number can also reduce net The complexity of network planning, reduces the co-channel interference of minizone, promotes user experience.Under outdoor high-speed scene, by using more A RRU is total to the mode of cell, can expand single cell coverage area, expands the covering crossover region of neighboring community, so as to subtract Few cell reselection and cell switching times, reduce terminal cutting off rate, promote the continuous covering performance under high velocity environment, and then solve The problem of resident, access of the terminal in high-speed mobile environment, calling.

Please refer to the data processing method application as shown in Fig. 2, multiple RRU for total cell provided in an embodiment of the present invention There are multiple RRU under the configuration diagram of distributed base station a, BBU, for distributed base station includes 7 RRU in Fig. 2, Wherein, RRU3, RRU4, RRU5 are 3 RRU of cell altogether, this 3 RRU connects by RRU combining units 1 with BBU, RRU6 with RRU7 is 2 RRU of cell altogether, this 2 RRU are connected by RRU combining units 2 with BBU, and the present invention is total to multiple RRU of cell Data processing method can be realized in RRU combining units, i.e., it is provided by the invention altogether cell multiple RRU data processing side Method can using RRU combining units 1 and RRU combining units 2 as method executive agent, RRU combining units as RRU and BBU it Between a middleware, can be both deployed in the computer room of base station as an individual module, can also with some RRU or BBU is integrated.The data processing equipment of the multiple RRU for the total cell that subsequent embodiment of the present invention provides can be based on A kind of autonomous device that RRU combining units are realized, or the integrated equipment that is integrated with RRU or BBU.

Distributed website shown in Fig. 2 can be applied in LTE network, and distribution-type base station architecture is in conventional macro base station BBU and RRU separate, be generally attached using optical fiber between BBU and RRU, and define unified general public wireless Electrical interface (Common Public Radio Interface, CPRI) standard.BBU in distribution-type base station architecture is substantially carried out Base-Band Processing, RRU are substantially carried out middle radio frequency processing, and RRU combining units are substantially carried out the upper of multiple RRU corresponding channels of total cell Row time domain data carries out data processing, to reduce the noise in uplink time domain data, after avoiding the directly superposition of uplink time domain data The bottom of generation is made an uproar lifting problem.

It is described in detail separately below.

Method provided in an embodiment of the present invention can be applied in distributed base station between BBU and RRU in data transmission procedure, The present invention is total to one embodiment of the data processing method of multiple RRU of cell, please refers to shown in Fig. 3, one implementation of the present invention The data processing method of the multiple RRU for the total cell that example provides, can specifically include following steps：

301, the time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, by the time domain number of each RRU According to being converted into the corresponding frequency domain datas of each RRU.

In embodiments of the present invention, each RRU both corresponds to one or more channels in multiple RRU of cell altogether, and RRU is logical Road is the path of signal transmitting, and each channel corresponds to the feedback of antenna all the way, and RRU port numbers are equal to feeder line number.In LTE uplinks In receives link, RRU receives data, radio frequency processing during RRU is first carried out from antenna port first, and middle radio frequency processing counts in the process According to successively by being handled with lower unit：Duplexer, low-noise amplifier, receiver and Digital IF processing unit, connecing The radiofrequency signal received is converted to time-domain digital baseband signal, also referred to as time domain data.Specifically, the separation first of duplexer Emit signal and receive signal, the radiofrequency signal received is amplified processing by low-noise amplifier, and receiver is mainly to putting Radiofrequency signal after big carries out the processing such as analog down, simulation automatic growth control, analog-to-digital conversion, and radiofrequency signal is transformed to Digital medium-frequency signal, Digital IF processing unit carry out Digital Down Convert, down-sampled, filtering, number certainly to digital medium-frequency signal Dynamic gain control etc. reason, digital baseband signal is converted by digital medium-frequency signal.During multiple RRU of cell are completed altogether at radio frequency After reason obtains time domain data, each RRU is reported to the data processing equipment of multiple RRU of total cell respectively, therefore, this hair The time domain data that each RRU is sent in multiple RRU of total cell can be respectively received in bright embodiment, it should be noted that In embodiments of the present invention, if each RRU includes a channel, the time domain data of each RRU can be logical with one for RRU Time domain data on road, if each RRU includes multiple channels, such as including N number of channel, N is the natural number more than or equal to 2, The time domain data that then each RRU is sent in step 301 can refer to the corresponding roads the N time domain in N number of channel in each RRU Data.

In embodiments of the present invention, after each RRU of total cell receives time domain data, to the time domain of each RRU At the corresponding frequency domain datas of each RRU, then the data merging subsequently carried out in the embodiment of the present invention just refers to data conversion The data carried out on frequency domain merge, and it is that entirely different realization is former that this merges with the data carried out in the time domain in the prior art Reason.It should be noted that in embodiments of the present invention, if each RRU includes a channel, the corresponding frequency domain number of each RRU According to can be with the frequency domain data on a channel for RRU, if each RRU includes multiple channels, such as including N number of channel, N be Natural number more than or equal to 2, then in step 301 the corresponding frequency domain datas of each RRU can refer to it is N number of in each RRU The corresponding roads the N frequency domain data in channel.

Further, in embodiments of the present invention, the time domain data of each RRU is converted into the corresponding frequency domains of each RRU Data can pass through orthogonal frequency division multiplexing (full name in English：Orthogonal Frequency Division Multiplexing, English abbreviation：OFDM) symbol generates inversely processing to realize, to which time domain data is converted into frequency domain data.Wherein, OFDM symbol It includes going cyclic prefix (full name in English to generate inversely processing：Cyclic Prefix, english abbreviation：CP) processing and Fourier transformation Processing, Fourier transformation specifically also refer to Fast Fourier Transform (FFT) (full name in English：Fast Fourier Transform, English abbreviation：FFT).

302, the subscriber signal for including according to the corresponding frequency domain datas of each RRU detects the corresponding frequency domains of each RRU User's effective bandwidth in data.

In embodiments of the present invention, it after getting the corresponding frequency domain datas of each RRU, is carried in frequency domain data in need It is scheduled to the subscriber signal of user, therefore can detect that each RRU is corresponding according to the user data carried in frequency domain data User's effective bandwidth in frequency domain data.Wherein, subscriber signal refers to being scheduled to user equipment (English in RRU coverage areas Full name：User Equipment, english abbreviation：UE subscriber signal), subscriber signal transmit the frequency model of occupancy on sub-carriers It encloses for user's effective bandwidth.For example, in the embodiment of the present invention when carrying out the detection of user's effective bandwidth, to each RRU's Frequency domain data is analyzed, and determines in frequency domain data whether contain subscriber signal, subscriber signal is contained in determining frequency domain data Afterwards, then get the subscriber signal transmission occupy bandwidth be user's effective bandwidth.Detect that frequency domain is believed in the embodiment of the present invention User's effective bandwidth in number can determine the frequency location of subscriber signal transmission, then the frequency domain other than user's effective bandwidth Data just not instead of user data, interference noise.It detects to trigger execution step after frequency-region signal in the embodiment of the present invention 303。

303, the frequency domain data by frequency values in the corresponding frequency domain datas of each RRU other than user's effective bandwidth is removed Fall, obtains the frequency domain data for including subscriber signal.

In embodiments of the present invention, after user's effective bandwidth in detecting the corresponding frequency domain datas of each RRU, root The frequency domain data in the corresponding frequency domain datas of each RRU other than user's effective bandwidth can be got according to user's effective bandwidth, this It can determine that the frequency domain data other than user's effective bandwidth is interference noise, therefore can be to each RRU pairs in the embodiment of the present invention Frequency domain data of the frequency values other than user's effective bandwidth is disposed in the frequency domain data answered, therefore the interference noise outside band can be with It is disposed of, so as to obtain including the frequency domain data of subscriber signal, believes comprising user in step 303 in the embodiment of the present invention Number frequency domain data the frequency domain data for only including subscriber signal is disposed of for the interference noise except user's effective bandwidth.Tool Body, it can be set to the frequency domain data other than user's effective bandwidth that the frequency domain data other than user's effective bandwidth, which is disposed, Zero realizes.

304, the frequency domain data comprising subscriber signal is merged respectively according to the corresponding channels RRU, after merging Including the frequency domain data of subscriber signal is sent to baseband processing unit BBU.

In embodiments of the present invention, it obtains believing comprising user after the frequency domain data other than user's effective bandwidth being disposed Number frequency domain data, then the frequency domain data comprising subscriber signal is merged on frequency domain again, this with exist in the prior art Data are carried out in time domain to merge using entirely different technical solution, and are closed on frequency domain in the embodiment of the present invention And frequency domain data in out-of-band interference noise have been cleared by, therefore after being merged on frequency domain in the embodiment of the present invention In frequency domain data there is no bottom make an uproar lifting the problem of, improve the receptivity of uplink.

In embodiments of the present invention, it is corresponding according to RRU to be merged respectively to the frequency domain data comprising subscriber signal Channel carries out, that is to say, that, it is assumed that the RRU numbers for needing to carry out data merging are M, the number of active lanes of each RRU is N, Frequency domain data is merged according to the corresponding channels RRU and refers to that N number of channel of M RRU is added up M times respectively, is obtained N number of logical The frequency domain data in road.

In embodiments of the present invention, after the merging that data are completed on frequency domain, can will believe comprising user after merging Number frequency domain data be sent to BBU, after BBU receives the frequency domain data comprising subscriber signal after merging, present invention implementation BBU continues Base-Band Processing in example, and the Base-Band Processing that BBU is carried out in the embodiment of the present invention includes successively：Channel estimation and survey Amount, the multiple-input and multiple-output (full name in English of multiple antennas：Multiple Input Multiple Output, english abbreviation： MIMO) decoding, constellation symbol demodulation channel decoding.Specifically, channel estimation and measurement include channel frequency transmission response Estimation, SINR are measured, Doppler measurement, multipath measurement etc. and the relevant parameter measurement of demodulation；The MIMO decodings of multiple antennas are main Refer to detaching the reception signal of each antenna；Constellation symbol demodulation, which refers to making decisions constellation point, becomes bit stream； Channel decoding indicates to carry out error-correcting decoding processing to receiving bit stream.

By the above example description of this invention it is found that receiving each RRU in multiple RRU of cell altogether respectively first The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU, then according to each RRU by the time domain data of transmission The subscriber signal that corresponding frequency domain data includes detects user's effective bandwidth in the corresponding frequency domain datas of each RRU, connects Get off and dispose frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU, is wrapped Frequency domain data containing subscriber signal finally closes the frequency domain data comprising subscriber signal according to the corresponding channels RRU respectively And the frequency domain data comprising subscriber signal after merging is sent to baseband processing unit BBU.Total cell in the embodiment of the present invention The time domain data of each RRU be converted into frequency domain data, in order to carry out the detection of user's effective bandwidth on frequency domain, this is not The merging being same as in the data progress time domain to RRU in the prior art, and corresponded in each RRU of determination in the embodiment of the present invention Frequency domain data in user's effective bandwidth after, can also according to user's effective bandwidth to the corresponding frequency domain datas of each RRU The removing of out-of-band noise is carried out, only retains the frequency domain data comprising subscriber signal and merges, avoid noise between different RRU Superposition, avoid bottom existing in the prior art from making an uproar lifting problem, the frequency domain data to improve RRU merge after noise Than improving uplink receiving performance.

It please refers to as shown in figure 4, Fig. 4 provides the number carried out to four RRU of total cell on frequency domain for the embodiment of the present invention According to combined realization schematic diagram of a scenario.It is merged into the upstream data of four RRU (being respectively RRU1, RRU2, RRU3 and RRU4) Example, each RRU output time-domain data in RRU1, RRU2, RRU4, time domain data include that upstream data in Fig. 4 and bottom are made an uproar, RRU3 outputs bottom is made an uproar, and time domain data is sent to RRU combining units, RRU combining units difference by RRU1, RRU2, RRU3 and RRU4 To the frequency domain data zero setting outside time domain data progress OFDM symbol generation inversely processing, the detection of user's effective bandwidth, effective bandwidth, frequency The merging of numeric field data, after the merging for completing frequency domain data, the frequency domain data after merging is sent to BBU by RRU combining units, by BBU carries out the Base-Band Processing described in previous embodiment.As shown in figure 4, outside can be to user's effective bandwidth in the embodiment of the present invention Frequency domain data zero setting, to reduce the interference that bottom is made an uproar to subscriber signal, so the merging of intermediate frequency numeric field data of the embodiment of the present invention The lifting that bottom will not be caused to make an uproar provides the receptivity of uplink, it is particularly possible to which the quantity of the RRU suitable for being supported is more When need combined upstream data also can corresponding increased scene, avoid bottom make an uproar lifting the problem of.It should be noted that Fig. 4 In by taking the frequency domain data of 4 RRU merges as an example, the embodiment of the present invention may be equally applicable for more RRU and carry out frequency domain datas Combined application scenarios.In addition, in the embodiment of the present invention, subscriber signal is 0 in RRU3 shown in Fig. 4, then RRU3 is corresponding User's effective bandwidth in frequency domain data is 0, specific to the frequency domain data zero setting outside user's effective bandwidth in the embodiment of the present invention It refers to the corresponding frequency domain datas of RR3 can all being disposed, so that the frequency domain data including subscriber signal is not joined With merging for frequency domain data, the influence of the interference noise outside user's effective bandwidth is reduced.

Next another embodiment of the data processing method of multiple RRU of the total cell of the present invention is described, is asked As shown in fig.5, the data processing method of the multiple RRU for the total cell that another embodiment of the present invention provides, can specifically wrap Include following steps：

501, the time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, by the time domain number of each RRU According to being converted into the corresponding frequency domain datas of each RRU.

Wherein, step 501 is similar with the realization method of step 301 in previous embodiment, referring specifically to aforementioned implementation Description in example, details are not described herein again.

Whether 502, detected in the corresponding frequency domain datas of each RRU according to the scheduling information of all UE of cell includes user Signal.

In embodiments of the present invention, after getting the corresponding frequency domain datas of each RRU, frequency domain corresponding to each RRU Data are analyzed, to determine whether contain subscriber signal in frequency domain data, specifically, multiple RRU logically belong to same One cell gets multiple RRU and belongs to jointly so the cell parameters such as carrier number, frequency point, channel configuration of each RRU are identical In the same cell in all UE scheduling information, the corresponding frequency domain of each RRU is detected according to the scheduling information of each UE Whether include subscriber signal in data, it, can be to the multichannel frequency domain data in multiple channels if each RRU is corresponding with multiple channels Whether include user data, the corresponding frequency domain datas of each RRU can be detected by the scheduling information of each UE if being detected In whether include subscriber signal.

503, for detecting the frequency domain data including subscriber signal, then the subscriber signal detected is subjected to uplink scheduling User effective bandwidth of the occupied frequency range as the frequency domain data is transmitted, the frequency of subscriber signal is not included for detecting User's effective bandwidth of frequency domain data not including subscriber signal is then set to zero by numeric field data.

In embodiments of the present invention, in step 502 in the corresponding frequency domain datas of each RRU whether include subscriber signal into It has gone detection, has then included subscriber signal for the frequency domain data having, such as RRU1, RRU2, RRU4 in Fig. 4, for the frequency having Numeric field data does not include subscriber signal, such as RRU3 in Fig. 4, in including the frequency domain data of subscriber signal, and the user that will detect Signal carries out uplink scheduling and transmits user effective bandwidth of the occupied frequency range as the frequency domain data, not comprising user In the frequency domain data of signal, user's effective bandwidth of the frequency domain is set to zero.

It should be noted that in some embodiments of the invention, the step 302 in previous embodiment can specifically include Next aforementioned step 502 and step 503 is illustrated the specific implementation of step 502 and step 503.? In some embodiments of the present invention, step 502 detects each RRU according to the scheduling information of all user equipment (UE)s of cell and corresponds to Frequency domain data in whether include subscriber signal, can specifically include following steps：

A1, got from BBU cell all UE scheduling information；

A2, got from the corresponding frequency domain datas of each RRU according to scheduling information cell each UE ascending pilot frequency Signal；

A3, cross-correlation calculation is carried out according to the uplink pilot signal and pilot frequency sequence of each UE of cell, it is mutual obtains pilot tone Correlated results；

If A4, pilot tone cross correlation results are more than preset pilot threshold, detect in frequency domain data and believe including user Number, if pilot tone cross correlation results are less than or equal to pilot threshold, detect not include subscriber signal in frequency domain data.

Wherein, in step A1 the same cell that multiple RRU belong to jointly is got first by the interaction with BBU The scheduling information of all UE, for example, when distributed base station sends down dispatch information to UE, RRU combining units are simultaneously to BBU Obtain the scheduling information of UE.Then cell is got from the corresponding frequency domain datas of each RRU according to the scheduling information of each UE Each UE uplink pilot signal, then carried out by the uplink pilot signal of each UE and in locally generated pilot frequency sequence mutual Correlation computations obtain pilot tone cross correlation results, for example, for example, uplink pilot signal is sequence [x₁,x₂,…x_n], it is local The pilot frequency sequence of generation is sequence [y₁,y₂,…y_n], then it can be by [x₁,x₂,…x_n] and [y₁,y₂,…y_n] computing cross-correlation is done, Obtained pilot tone cross correlation results are x₁y₁ ^*+x₂y₂ ^*+…+x_n y_n ^*, wherein y_n ^*Indicate y_nConjugation, obtain pilot tone cross-correlation knot After fruit, the magnitude numerical value relationship of pilot tone cross correlation results and preset pilot threshold is judged, and determine according to judging result Whether include subscriber signal in frequency domain data.In conjunction with application scenarios shown in Fig. 4, be illustrated below, RRU combining units from The scheduling information that all UE of cell are obtained in BBU extracts the ascending pilot frequency letter of the UE for each UE from every road frequency domain data Number, computing cross-correlation is done with locally generated pilot frequency sequence, obtains a cross correlation value, if the value is more than preset pilot tone door Limit, then it represents that the subscriber signal containing the UE in frequency domain data, user's effective bandwidth is the scheduling bandwidth of UE, at this time per road User's effective bandwidth of frequency domain data only includes the occupied part frequency domain resources of UE.Otherwise it indicates to be free of UE in frequency domain data Subscriber signal, UE the road frequency domain data user's effective bandwidth be 0.It is understood that in the embodiment of the present invention, pilot tone The specific value of thresholding can be determined by application scenarios, not limited herein.

In some embodiments of the invention, step 502 is detected according to the scheduling information of all user equipment (UE)s of cell Whether include subscriber signal in the corresponding frequency domain datas of each RRU, can specifically include following steps：

B1, got from BBU cell all UE scheduling information；

B2, uplink reference signals of each UE in the corresponding frequency domain datas of each RRU that cell is measured according to scheduling information Receive power (full name in English：Reference Signal Receiving Power, english abbreviation：RSRP)；

If B3, uplink RSRP are more than preset power threshold, detected in frequency domain data including subscriber signal, if on Row RSRP is less than or equal to power threshold, then detects not include subscriber signal in frequency domain data.

Wherein, in step B1 the same cell that multiple RRU belong to jointly is got first by the interaction with BBU The scheduling information of all UE, for example, when distributed base station sends down dispatch information to UE, RRU combining units are simultaneously to BBU Obtain the scheduling information of UE.Then the every of the same cell that multiple RRU belong to jointly is measured according to the scheduling information of each UE A UE after obtaining uplink RSRP, judges uplink RSRP and preset work(in the uplink RSRP of the corresponding frequency domain datas of each RRU The magnitude numerical value relationship of rate thresholding, and determine in frequency domain data whether include subscriber signal according to judging result.In conjunction with Fig. 4 institutes The application scenarios shown, are illustrated below, and RRU combining units obtain the scheduling information of all UE of cell from BBU, for each UE, the uplink RSRP for measuring the UE in every road frequency domain data contain if the value is more than preset power threshold in frequency domain data The subscriber signal of the UE, user's effective bandwidth are the scheduling bandwidth of UE, otherwise indicate that the user without UE believes in frequency domain data Number, UE is 0 in user's effective bandwidth of the road frequency domain data.It is understood that in the embodiment of the present invention, the tool of power threshold Body value can be determined by application scenarios, not limited herein.

504, the frequency domain data by frequency values in the corresponding frequency domain datas of each RRU other than user's effective bandwidth is removed Fall, obtains the frequency domain data for including subscriber signal.

505, the frequency domain data comprising subscriber signal is merged respectively according to the corresponding channels RRU, after merging Including the frequency domain data of subscriber signal is sent to baseband processing unit BBU.

Wherein, step 504,505 similar with the realization method of step 303 in previous embodiment, 304, referring specifically to Description in previous embodiment, details are not described herein again.

By the above example description of this invention it is found that receiving each RRU in multiple RRU of cell altogether respectively first The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU, then according to cell by the time domain data of transmission Whether it includes subscriber signal that the scheduling information of all UE detects in the corresponding frequency domain datas of each RRU, and detects that user is effective Next bandwidth is disposed frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU, It obtains including the frequency domain data of subscriber signal, finally the frequency domain data comprising subscriber signal is distinguished according to the corresponding channels RRU It merges, the frequency domain data comprising subscriber signal after merging is sent to baseband processing unit BBU.In the embodiment of the present invention The time domain data of each RRU of cell is converted into frequency domain data altogether, in order to carry out the inspection of user's effective bandwidth on frequency domain It surveys, this is different from the prior art carrying out the data of RRU the merging in time domain, and is being determined each in the embodiment of the present invention It, can also be according to user's effective bandwidth to the corresponding frequencies of each RRU after user's effective bandwidth in the corresponding frequency domain datas of RRU Numeric field data carries out the removing of out-of-band noise, only retains and is merged comprising the frequency domain data of subscriber signal, avoid different RRU it Between noise superposition, avoid bottom existing in the prior art from making an uproar lifting problem, after the frequency domain data to improve RRU merges Signal-to-noise ratio improves uplink receiving performance.

Next another embodiment of the data processing method of multiple RRU of the total cell of the present invention is described, In the embodiment, by taking each RRU includes multiple channels as an example, such as each RRU includes N number of channel, the corresponding frequency of each RRU Numeric field data includes：Corresponding to the roads the N frequency domain data in N number of channel, N is the natural number more than or equal to 2, is please referred to shown in Fig. 6, this The data processing method for inventing multiple RRU of the total cell of another embodiment offer, can specifically include following steps：

601, the time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, by the time domain number of each RRU According to being converted into the corresponding frequency domain datas of each RRU.

Wherein, step 601 is similar with the realization method of step 301 in previous embodiment, referring specifically to aforementioned implementation Description in example, details are not described herein again.Triggering step 602 and step 603 execute successively after step 601 is completed.

602, the corresponding arbitrary two-way frequency domain datas of the same RRU in the frequency domain data of the roads N are subjected to cross-correlation calculation, obtained Data cross correlation results.

If 603, data cross correlation results are more than preset data threshold, the corresponding RRU's of arbitrary two-way frequency domain data Scheduling has subscriber signal in coverage area, has the maximum transmission bandwidth of system configuration as the user of arbitrary two-way frequency domain data Imitate bandwidth；If cross correlation results are less than or equal to dependent threshold, in the coverage area of the corresponding RRU of arbitrary two-way frequency domain data Subscriber signal is not dispatched, user's effective bandwidth of arbitrary two-way frequency domain data is set to zero.

It should be noted that in some embodiments of the invention, the step 302 in previous embodiment can specifically include Next aforementioned step 602 and step 603 is illustrated the specific implementation of step 602 and step 603.

In embodiments of the present invention, after getting the corresponding frequency domain datas of each RRU, if each RRU be corresponding with it is multiple Channel then can carry out cross-correlation to the arbitrary two-way frequency domain data under the same RRU in the multichannel frequency domain data in multiple channels It calculates, obtains data cross correlation results.Wherein, if the channel number that the same RRU includes is more than 2, needing will be same Frequency domain data carries out cross-correlation calculation two-by-two in the corresponding roads the N frequency domain datas of RRU, then triggers step 603 and executes, judges data Numerical values recited relationship between cross correlation results and preset data threshold, and determine according to judging result the user of frequency domain data Effective bandwidth.In conjunction with application scenarios shown in Fig. 4, it is illustrated below, it, can be with if each RRU includes more than two channels The arbitrary two-way frequency domain data of the same RRU is subjected to computing cross-correlation, obtains a cross correlation value, if the value is more than preset Data threshold, then it represents that have UE scheduling in the RRU coverage areas, i.e., have subscriber signal transmission in the RRU coverage areas, and will User's effective bandwidth of each road frequency domain data of the RRU is set as system bandwidth, otherwise indicates in the RRU coverage areas without UE tune Degree, and user's effective bandwidth of each road frequency domain data of the RRU is set as 0.It is different from the realization method of previous embodiment, this reality The scheduling information of UE need not be utilized by applying in example, belonged to blind Detecting, can be detected whether there is UE scheduling in frequency domain data, with system Regiment commander is wide to be used as user's effective bandwidth.Wherein, system bandwidth refers to the maximum transmitted band of system configuration in some carrier frequency Width can use MHz or (full name in English：Resource Block, English abbreviation：RB) number indicates, for example, LTE system Bandwidth is configurable to 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz or 20MHz, corresponds respectively to 6RB, 15RB, 25RB, 50RB, 75RB and 100RB.It is understood that in the embodiment of the present invention, the specific value of data threshold can be by application scenarios It determines, does not herein limit.

604, the frequency domain data by frequency values in the corresponding frequency domain datas of each RRU other than user's effective bandwidth is removed Fall, obtains the frequency domain data for including subscriber signal.

605, the frequency domain data comprising subscriber signal is merged respectively according to the corresponding channels RRU, after merging Including the frequency domain data of subscriber signal is sent to baseband processing unit BBU.

Wherein, step 604,605 similar with the realization method of step 303 in previous embodiment, 304, referring specifically to Description in previous embodiment, details are not described herein again.

By the above example description of this invention it is found that receiving each RRU in multiple RRU of cell altogether respectively first The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU, then by same by the time domain data of transmission The arbitrary two-way frequency domain data of RRU carries out cross-correlation calculation and gets user's effective bandwidth to the judgement of data threshold volume, connects Get off and dispose frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU, is wrapped Frequency domain data containing subscriber signal finally closes the frequency domain data comprising subscriber signal according to the corresponding channels RRU respectively And the frequency domain data comprising subscriber signal after merging is sent to baseband processing unit BBU.Total cell in the embodiment of the present invention The time domain data of each RRU be converted into frequency domain data, in order to carry out the detection of user's effective bandwidth on frequency domain, this is not The merging being same as in the data progress time domain to RRU in the prior art, and corresponded in each RRU of determination in the embodiment of the present invention Frequency domain data in user's effective bandwidth after, can also according to user's effective bandwidth to the corresponding frequency domain datas of each RRU The removing of out-of-band noise is carried out, only retains the frequency domain data comprising subscriber signal and merges, avoid noise between different RRU Superposition, avoid bottom existing in the prior art from making an uproar lifting problem, the frequency domain data to improve RRU merge after noise Than improving uplink receiving performance.

Next another embodiment of the data processing method of multiple RRU of the total cell of the present invention is described, is asked As shown in fig.7, the data processing method of the multiple RRU for the total cell that another embodiment of the present invention provides, can specifically wrap Include following steps：

701, the time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, by the time domain number of each RRU According to being converted into the corresponding frequency domain datas of each RRU.

Wherein, step 701 is similar with the realization method of step 301 in previous embodiment, referring specifically to aforementioned implementation Description in example, details are not described herein again.Triggering step 702 and step 703, step 704 execute successively after step 701 is completed.

702, the gross energy of all subcarriers in each RB in the corresponding frequency domain datas of each RRU is counted successively.

703, determine that the gross energy of all subcarriers in frequency domain data is in the frequency domain data more than the RB of energy threshold Within user's effective bandwidth, determines that the gross energy of all subcarriers in frequency domain data is in less than or equal to the RB of energy threshold and be somebody's turn to do Except user's effective bandwidth of frequency domain data.

704, RB that the gross energy of all subcarriers in frequency domain data is more than to energy threshold adds up, and obtains the frequency domain User's effective bandwidth of data.

It should be noted that in some embodiments of the invention, the step 302 in previous embodiment can specifically include Aforementioned step 702, step 703, step 704, next to step 702, step 703, the specific implementation of step 704 into Row illustrates.

In embodiments of the present invention, after getting the corresponding frequency domain datas of each RRU, each RRU is counted successively and is corresponded to Frequency domain data in the gross energy of all subcarriers can be to multiple logical if each RRU is corresponding with multiple channels in each RB In the multichannel frequency domain data in road in each RB all subcarriers gross energy, then according to judging all subcarriers in step 703 Gross energy mode, determine a RB whether the mode within user's effective bandwidth, and according to judging result determine frequency User's effective bandwidth of numeric field data.It in conjunction with application scenarios shown in Fig. 4, is illustrated below, for every road frequency domain data, successively The gross energy of all subcarriers in each RB is counted, if the energy of some RB is more than preset energy threshold, then it represents that in the RB Inside there is UE scheduling, which is within user's effective bandwidth, otherwise indicates that the RB is in except user's effective bandwidth, according to above-mentioned All RB in method Ergodic Theory bandwidth can determine user's effective bandwidth of every road frequency domain data.It is understood that this hair In bright embodiment, the specific value of energy threshold can be determined by application scenarios, not limited herein.

705, the frequency domain data by frequency values in the corresponding frequency domain datas of each RRU other than user's effective bandwidth is removed Fall, obtains the frequency domain data for including subscriber signal.

706, the frequency domain data comprising subscriber signal is merged respectively according to the corresponding channels RRU, after merging Including the frequency domain data of subscriber signal is sent to baseband processing unit BBU.

Wherein, step 705,706 similar with the realization method of step 303 in previous embodiment, 304, referring specifically to Description in previous embodiment, details are not described herein again.

By the above example description of this invention it is found that receiving each RRU in multiple RRU of cell altogether respectively first The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU, then according to each RRU by the time domain data of transmission The gross energy of all subcarriers and the relationship of energy threshold in each RB in corresponding frequency domain data, get and carry energy Continuous user effective bandwidths of multiple RB as frequency domain data, next exists frequency values in the corresponding frequency domain datas of each RRU Frequency domain data other than user's effective bandwidth is disposed, and the frequency domain data for including subscriber signal is obtained, finally corresponding according to RRU Channel merges the frequency domain data comprising subscriber signal respectively, and the frequency domain data comprising subscriber signal after merging is sent Give baseband processing unit BBU.The time domain data of each RRU of cell is converted into frequency domain data altogether in the embodiment of the present invention, with Convenient for carrying out the detection of user's effective bandwidth on frequency domain, this is different from the prior art carrying out in time domain the data of RRU Merge, it, can be with and after user's effective bandwidth in the embodiment of the present invention in the corresponding frequency domain datas of each RRU of determination The removing of out-of-band noise is carried out to the corresponding frequency domain datas of each RRU according to user's effective bandwidth, it includes subscriber signal only to retain Frequency domain data merge, avoid the superposition of noise between different RRU, bottom existing in the prior art lifting of making an uproar avoided to ask Topic, the signal-to-noise ratio after frequency domain data merging to improve RRU, improves uplink receiving performance.

It should be noted that for each method embodiment above-mentioned, for simple description, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the described action sequence because According to the present invention, certain steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know It knows, embodiment described in this description belongs to preferred embodiment, and involved action and module are not necessarily of the invention It is necessary.

For ease of preferably implementing the said program of the embodiment of the present invention, the phase for implementing said program is also provided below Close device.

It please refers to shown in Fig. 8-a, a kind of data processing equipment of multiple RRU of cell altogether provided in an embodiment of the present invention 800, may include：Time-frequency convert module 801, bandwidth detection module 802, data dump module 803, frequency domain combination module 804, Wherein,

Time-frequency convert module 801 will for receiving the time domain data that each RRU is sent in multiple RRU of cell altogether respectively The time domain data of each RRU is converted into the corresponding frequency domain datas of each RRU；

Bandwidth detection module 802, the subscriber signal for including according to the corresponding frequency domain datas of each RRU detect Go out user's effective bandwidth in the corresponding frequency domain datas of each RRU；

Data dump module 803, for frequency values in the corresponding frequency domain datas of each RRU are effective in the user Frequency domain data other than bandwidth is disposed, and the frequency domain data for including the subscriber signal is obtained；

Frequency domain combination module 804, for distinguishing the frequency domain data comprising the subscriber signal according to the corresponding channels RRU It merges, the frequency domain data comprising the subscriber signal after merging is sent to baseband processing unit BBU.

In some embodiments of the invention, it please refers to as shown in Fig. 8-b, bandwidth detection module 802 may include：

Subscriber signal detection unit 8021, the scheduling information for all user equipment (UE)s according to the cell detect institute Whether state in the corresponding frequency domain datas of each RRU includes the subscriber signal；

First effective bandwidth acquiring unit 8022, the frequency domain data for including the subscriber signal for detecting, then The subscriber signal detected progress uplink scheduling is transmitted occupied frequency range to be had as the user of the frequency domain data Imitate bandwidth；Do not include the frequency domain data of the subscriber signal for detecting, then will not include the frequency domain number of the subscriber signal According to user's effective bandwidth be set to zero.

Further, in some embodiments of the invention, it please refers to as shown in Fig. 8-c, the subscriber signal detection is single Member 8021, including：

Scheduling information acquiring unit 80211, the scheduling information of all UE for getting the cell from the BBU；

Pilot signal acquiring unit 80212, for according to the scheduling information from the corresponding frequency domain datas of each RRU In get the cell each UE uplink pilot signal；

First cross-correlation calculation unit 80213 is used for the uplink pilot signal and pilot tone of each UE according to the cell Sequence carries out cross-correlation calculation, obtains pilot tone cross correlation results；

First analytic unit 80214, if being more than preset pilot threshold for the pilot tone cross correlation results, in frequency domain It is detected in data including the subscriber signal, if the pilot tone cross correlation results are less than or equal to the pilot threshold, Detect not include the subscriber signal in frequency domain data.

Further, in some embodiments of the invention, it please refers to as shown in Fig. 8-d, the subscriber signal detection is single Member 8021, including：

Measuring unit 80215, for measuring each UE of the cell according to the scheduling information at described each RRU pairs The uplink reference signals for the frequency domain data answered receive power RSRP；

Second analytic unit 80216, if being more than preset power threshold for the uplink RSRP, in frequency domain data It detects including the subscriber signal, if the uplink RSRP is less than or equal to the power threshold, is examined in frequency domain data Measure does not include the subscriber signal.

In some embodiments of the invention, if each RRU includes N number of channel, the corresponding frequency domain data of each RRU Including：Corresponding to the roads the N frequency domain data in N number of channel, the N is the natural number more than or equal to 2, is please referred to such as Fig. 8-e Shown, bandwidth detection module 802 may include：

Second cross-correlation calculation unit 8023 is used for the corresponding arbitrary two-way of the same RRU in the frequency domain data of the roads N Frequency domain data carries out cross-correlation calculation, obtains data cross correlation results；

Second effective bandwidth acquiring unit 8024, if being more than preset data threshold for the data cross correlation results, Then scheduling has subscriber signal in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data, and the maximum of system configuration is passed User effective bandwidth of the defeated bandwidth as the arbitrary two-way frequency domain data；If the cross correlation results are less than or equal to the phase Limit of closing the door will be described arbitrary then without scheduling subscriber signal in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data User's effective bandwidth of two-way frequency domain data is set to zero.

In some embodiments of the invention, it please refers to as shown in fig. 8-f, bandwidth detection module 802 may include：

Energy statistics unit 8025, for counting each resource block RB in the corresponding frequency domain datas of each RRU successively The gross energy of interior all subcarriers；

Resource block detection unit 8026, for determining that the gross energy of all subcarriers in frequency domain data is more than energy threshold RB is within user's effective bandwidth of the frequency domain data, determines that the gross energy of all subcarriers in frequency domain data is less than or equal to The RB of the energy threshold is in except user's effective bandwidth of the frequency domain data；

Third effective bandwidth acquiring unit 8027, for the gross energy of all subcarriers in frequency domain data to be more than energy door The RB of limit is added up, and user's effective bandwidth of the frequency domain data is obtained.

It should be noted that the contents such as information exchange, implementation procedure between each module/unit of above-mentioned apparatus, due to The method of the present invention embodiment is based on same design, and the technique effect brought is identical as the method for the present invention embodiment, particular content Reference can be made to the narration in embodiment of the method shown in the present invention is aforementioned, details are not described herein again.

The embodiment of the present invention also provides a kind of computer storage media, wherein and the computer storage media has program stored therein, Program execution includes step some or all of described in above method embodiment.

Next the data processing equipment for introducing another multiple RRU of cell altogether provided in an embodiment of the present invention, please join It reads shown in Fig. 9, the data processing equipment 900 of multiple RRU of cell includes altogether：

Input unit 901, output device 902, processor 903 and memory 904 (are wherein total to the number of multiple RRU of cell Can be one or more according to the quantity of the processor 903 in processing unit 900, in Fig. 9 by taking a processor as an example).In this hair In some bright embodiments, input unit 901, output device 902, processor 903 and memory 904 can be by buses or other Mode connects, wherein in Fig. 9 for being connected by bus.

Wherein, processor 903, for executing following steps：

In some embodiments of the invention, processor 903 is specifically used for executing following steps：

The scheduling information of all UE of the cell is got from the BBU；

In some embodiments of the invention, if each RRU includes N number of channel, the corresponding frequency domain data of each RRU Including：Corresponding to the roads the N frequency domain data in N number of channel, the N is the natural number more than or equal to 2, and processor 903 is specific For executing following steps：

Processor 903 is specifically used for executing following steps：

In addition it should be noted that, the apparatus embodiments described above are merely exemplary, wherein described as separation The unit of part description may or may not be physically separated, the component shown as unit can be or It can not be physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to reality Border needs to select some or all of module therein to achieve the purpose of the solution of this embodiment.In addition, provided by the invention In device embodiment attached drawing, the connection relation between module indicates there is communication connection between them, specifically can be implemented as one Item or a plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, you can with Understand and implements.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow Help software that the mode of required common hardware is added to realize, naturally it is also possible to by specialized hardware include application-specific integrated circuit, specially It is realized with CPU, private memory, special components and parts etc..Under normal circumstances, all functions of being completed by computer program can It is easily realized with corresponding hardware, moreover, for realizing that the particular hardware structure of same function can also be a variety of more Sample, such as analog circuit, digital circuit or special circuit etc..But it is more for the purpose of the present invention in the case of software program it is real It is now more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words makes the prior art The part of contribution can be expressed in the form of software products, which is stored in the storage medium that can be read In, such as the floppy disk of computer, USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory Device (RAM, Random Access Memory), magnetic disc or CD etc., including some instructions are with so that a computer is set Standby (can be personal computer, server or the network equipment etc.) executes the method described in each embodiment of the present invention.

In conclusion the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to upper Stating embodiment, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to upper The technical solution recorded in each embodiment is stated to modify or equivalent replacement of some of the technical features；And these Modification or replacement, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.

Claims

1. a kind of data processing method of multiple radio frequency remote unit RRUs of cell altogether, which is characterized in that including：

The time domain data that each RRU is sent in multiple RRU of cell altogether is received respectively, and the time domain data of each RRU is converted into The corresponding frequency domain datas of each RRU；

The subscriber signal for including according to the corresponding frequency domain datas of each RRU detects the corresponding frequency domains of each RRU User's effective bandwidth in data；

Frequency domain data of the frequency values other than user's effective bandwidth in the corresponding frequency domain datas of each RRU is removed Fall, obtains the frequency domain data for including the subscriber signal；

The frequency domain data comprising the subscriber signal is merged respectively according to the corresponding channels RRU, will include after merging The frequency domain data of the subscriber signal is sent to baseband processing unit BBU；

Wherein, the subscriber signal for including according to the corresponding frequency domain datas of each RRU detects described each RRU pairs User's effective bandwidth in the frequency domain data answered, including：It is detected according to the scheduling information of all user equipment (UE)s of the cell Whether include the subscriber signal in the corresponding frequency domain data of each RRU；For detecting including the subscriber signal The subscriber signal detected is then carried out uplink scheduling and transmits occupied frequency range as the frequency domain number by frequency domain data According to user's effective bandwidth；Do not include the frequency domain data of the subscriber signal for detecting, then will not include that the user believes Number user's effective bandwidth of frequency domain data be set to zero；

Or,

If each RRU includes N number of channel, the corresponding frequency domain data of each RRU includes：Corresponding to the roads N in N number of channel Frequency domain data, the N are natural number more than or equal to 2, described to include according to the corresponding frequency domain datas of each RRU Subscriber signal detects user's effective bandwidth in the corresponding frequency domain datas of each RRU, including：By the roads the N frequency domain number The corresponding arbitrary two-way frequency domain data of same RRU carries out cross-correlation calculation in, obtains data cross correlation results；If the number It is more than preset data threshold according to cross correlation results, then is adjusted in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data Degree has subscriber signal, using the maximum transmission bandwidth of system configuration as user's effective bandwidth of the arbitrary two-way frequency domain data； If the cross correlation results are less than or equal to the data threshold, the covering of the corresponding RRU of the arbitrary two-way frequency domain data Without scheduling subscriber signal in range, user's effective bandwidth of the arbitrary two-way frequency domain data is set to zero；

Or,

The subscriber signal for including according to the corresponding frequency domain datas of each RRU detects that each RRU is corresponding User's effective bandwidth in frequency domain data, including：Each resource block RB in the corresponding frequency domain datas of each RRU is counted successively The gross energy of interior all subcarriers；Determine that the gross energy of all subcarriers in frequency domain data is in the frequency more than the RB of energy threshold Within user's effective bandwidth of numeric field data, determine that the gross energy of all subcarriers in frequency domain data is less than or equal to the energy door The RB of limit is in except user's effective bandwidth of the frequency domain data；The gross energy of all subcarriers in frequency domain data is more than energy The RB of thresholding is added up, and user's effective bandwidth of the frequency domain data is obtained.

2. according to the method described in claim 1, it is characterized in that, the tune of all user equipment (UE)s according to the cell Whether spend in the corresponding frequency domain datas of each RRU described in infomation detection includes the subscriber signal, including：

The scheduling information of all UE of the cell is got from the BBU；

The uplink of each UE of the cell is got from the corresponding frequency domain datas of each RRU according to the scheduling information Pilot signal；

Cross-correlation calculation is carried out according to the uplink pilot signal of each UE of the cell and pilot frequency sequence, obtains pilot tone cross-correlation As a result；

If the pilot tone cross correlation results are more than preset pilot threshold, detect in frequency domain data and believe including the user Number, if the pilot tone cross correlation results are less than or equal to the pilot threshold, detect not include described in frequency domain data Subscriber signal.

3. according to the method described in claim 1, it is characterized in that, the tune of all user equipment (UE)s according to the cell Whether spend in the corresponding frequency domain datas of each RRU described in infomation detection includes the subscriber signal, including：

The scheduling information of all UE of the cell is got from the BBU；

The uplink reference of each UE of the cell in the corresponding frequency domain datas of each RRU is measured according to the scheduling information Signal reception power RSRP；

If the uplink RSRP is more than preset power threshold, detected in frequency domain data including the subscriber signal, if The uplink RSRP is less than or equal to the power threshold, then detects not include the subscriber signal in frequency domain data.

4. a kind of data processing equipment of multiple radio frequency remote unit RRUs of cell altogether, which is characterized in that including：

Time-frequency convert module, for receiving the time domain data that each RRU is sent in multiple RRU of cell altogether respectively, by each RRU Time domain data be converted into the corresponding frequency domain datas of each RRU；

Bandwidth detection module, the subscriber signal for including according to the corresponding frequency domain datas of each RRU detect described User's effective bandwidth in the corresponding frequency domain datas of each RRU；

Data dump module, for by frequency values in the corresponding frequency domain datas of each RRU user's effective bandwidth with Outer frequency domain data is disposed, and the frequency domain data for including the subscriber signal is obtained；

Frequency domain combination module, for being closed respectively to the frequency domain data comprising the subscriber signal according to the corresponding channels RRU And the frequency domain data comprising the subscriber signal after merging is sent to baseband processing unit BBU；

The bandwidth detection module, including：Subscriber signal detection unit, for according to all user equipment (UE)s of the cell Whether it includes the subscriber signal that scheduling information detects in the corresponding frequency domain datas of each RRU；First effective bandwidth obtains Unit, the frequency domain data for including the subscriber signal for detecting then carry out the subscriber signal detected User effective bandwidth of the occupied frequency range of row scheduled transmission as the frequency domain data；Do not include the use for detecting User's effective bandwidth of frequency domain data not including the subscriber signal is then set to zero by the frequency domain data of family signal；

Or,

If each RRU includes N number of channel, the corresponding frequency domain data of each RRU includes：Corresponding to the roads N in N number of channel Frequency domain data, the N are natural number more than or equal to 2, the bandwidth detection module, including：Second cross-correlation calculation unit, For the corresponding arbitrary two-way frequency domain datas of the same RRU in the frequency domain data of the roads N to be carried out cross-correlation calculation, data are obtained Cross correlation results；Second effective bandwidth acquiring unit, if being more than preset data threshold for the data cross correlation results, Scheduling has subscriber signal in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data, by the maximum transmitted of system configuration User effective bandwidth of the bandwidth as the arbitrary two-way frequency domain data；If the cross correlation results are less than or equal to the data Thresholding, then without scheduling subscriber signal in the coverage area of the corresponding RRU of the arbitrary two-way frequency domain data, by described arbitrary two User's effective bandwidth of road frequency domain data is set to zero；

Or,

The bandwidth detection module, including：Energy statistics unit, for counting the corresponding frequency domain datas of each RRU successively In in each resource block RB all subcarriers gross energy；Resource block detection unit, for determining all sub- loads in frequency domain data The RB that the gross energy of wave is more than energy threshold is within user's effective bandwidth of the frequency domain data, determines in frequency domain data and owns The RB that the gross energy of subcarrier is less than or equal to the energy threshold is in except user's effective bandwidth of the frequency domain data；Third Effective bandwidth acquiring unit, the RB for the gross energy of all subcarriers in frequency domain data to be more than to energy threshold add up, Obtain user's effective bandwidth of the frequency domain data.

5. device according to claim 4, which is characterized in that the subscriber signal detection unit, including：

Pilot signal acquiring unit, for being got from the corresponding frequency domain datas of each RRU according to the scheduling information The uplink pilot signal of each UE of the cell；

First cross-correlation calculation unit is used to be carried out according to the uplink pilot signal and pilot frequency sequence of each UE of the cell mutual Correlation computations obtain pilot tone cross correlation results；

First analytic unit is examined if being more than preset pilot threshold for the pilot tone cross correlation results in frequency domain data It measures including the subscriber signal, if the pilot tone cross correlation results are less than or equal to the pilot threshold, in frequency domain data In detect not include the subscriber signal.

6. device according to claim 4, which is characterized in that the subscriber signal detection unit, including：

Measuring unit, for measuring each UE of the cell according to the scheduling information in the corresponding frequency domains of each RRU The uplink reference signals of data receive power RSRP；

Second analytic unit detects packet if being more than preset power threshold for the uplink RSRP in frequency domain data The subscriber signal is included, if the uplink RSRP is less than or equal to the power threshold, detects and does not wrap in frequency domain data Include the subscriber signal.