CN107078767A - Predict antenna method for reconfiguration, apparatus and system - Google Patents

Predict antenna method for reconfiguration, apparatus and system Download PDF

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Publication number
CN107078767A
CN107078767A CN201480083530.5A CN201480083530A CN107078767A CN 107078767 A CN107078767 A CN 107078767A CN 201480083530 A CN201480083530 A CN 201480083530A CN 107078767 A CN107078767 A CN 107078767A
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antenna
prediction
channel
mobile device
base station
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CN107078767B (en
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李铕
王晓娜
唐小勇
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

The present invention provides a kind of prediction antenna method for reconfiguration, apparatus and system.This method includes：Measured according to the antenna structure information of mobile device, the first channel SNRs and the first channel relevancy, obtain first and predict antenna configuration information, the first prediction antenna configuration information includes the mark of prediction antenna；Sending first predicts antenna configuration information to mobile device.The channel information that the prediction antenna configured using the present invention is obtained can accurately reflect the channel conditions for being predicted antenna.

Description

Predict antenna method for reconfiguration, apparatus and system Technical field
The present invention relates to the communication technology more particularly to a kind of prediction antenna method for reconfiguration, apparatus and system.
Background technique
The mobile device of high-speed mobile faces the problem of channel feedback real-time.With time-division long term evolution (Time Division long term evolution, referred to as: TD-LTE) for system, if subframe uplink and downlink proportion is 2, then just there is a sub-frame of uplink to measure resulting channel information to base station report for mobile device every 5 milliseconds, or sends uplink pilot signal for base station measurement.Further, the processing of mobile device and base station can all introduce time delay, the channel information at mobile device a certain moment is often just used after 10 milliseconds, at this time, the channel information can not accurately reflect the environment that mobile device is presently in, and the precoding processing based on the progress of this channel information causes the decline of throughput of system.
The prior art introduces prediction antenna technology to solve the channel estimation problems of the mobile device of high-speed mobile.As shown in Figure 1, mobile device 200 includes prediction antenna 10 and alternative antenna 20, mobile device 200 is directed toward along arrow, with speed V traveling.Prediction antenna 10 is always located in front of alternative antenna 20, by prediction antenna 10 in t1The channel information of moment feedback, is equivalent to alternative antenna 20 in t1The channel information at+delta_t moment, that is to say, that base station 100 is in t1+ delt_t the moment does precoding processing based on the data that the channel information issues mobile device 200.Wherein, for predicting antenna, those skilled in the art can be understood as any antenna in mobile device, carry out channel estimation and data transmission by the prediction antenna between mobile device and base station；And alternative antenna is only used for data transmission, the data transmission of alternative antenna is based on the channel information of prediction antenna estimation, specifically, the equivalent channel information for obtaining its own of channel information that alternative antenna is estimated according to prediction antenna, and carried out data transmission using the equivalent acquisition channel information.
But for the mobile device for deploying large-scale antenna array, such as train or motor-car etc., SNR/RSRP has larger difference between different antennae.By taking one has the train in 11 section compartments of load as an example, wherein each compartment is 23 meters long, and the received signal strength positioned at the antenna on train head is up to 13dB relative to the received signal strength difference of the antenna of last vehicle of train.In addition, when disposing the mobile device of large-scale antenna array by multiple cells, channel circumstance locating for the distance difference and cell of base station as where the mobile device relative to cell is not also identical, and the received signal strength of the antenna of different location also has in mobile device Larger difference.Therefore, can not accurately reflect the channel conditions for being predicted antenna using the channel information that above-mentioned prediction antenna technology is predicted, the channel information according to inaccuracy carry out precoding processing can serious influence system handling capacity.
Summary of the invention
The present invention provides a kind of prediction antenna method for reconfiguration, apparatus and system, to realize the channel information fed back based on the mobile device for deploying large-scale antenna array, can accurately reflect the channel conditions for being predicted antenna, and then guarantee throughput of system.
In a first aspect, the present invention provides a kind of prediction antenna method for reconfiguration, which comprises
First base station obtains the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement communicate the noise of used first channel for mobile device and the first base station between, and when relativity measurement, the mobile device include mutiple antennas；
The first base station is according to the mapping relations of noise when relativity measurement and estimation range, it obtains first channel SNRs and the first channel relevancy and measures corresponding estimation range, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
The first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device, and the first prediction antenna configuration information includes the mark of the prediction antenna；
The first base station sends the first prediction antenna configuration information to the mobile device.
With reference to first aspect, in the first possible implementation of the first aspect, the first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device, comprising:
The center of circle is in position where antenna of the first base station to use first channel, using the estimation range as radius, determines the group where the antenna using first channel；
The first base station determines in described group that the maximum antenna of channel SNRs is as the prediction antenna；
The first base station is using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
With reference to first aspect, in the second possible implementation of the first aspect, the first base station According to the estimation range and the antenna structure information of the mobile device, the first prediction antenna configuration information is obtained, comprising:
The first base station determines that using the antenna of first channel be prediction antenna；
The first base station is using the position where the prediction antenna as the center of circle, using the estimation range as radius, determines the group where the prediction antenna；
The first base station is using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
With reference to first aspect, the first of first aspect into second of possible implementation any one, in a third possible implementation of the first aspect, the first base station is according to the estimation range and the antenna structure information of the mobile device, before obtaining the first prediction antenna configuration information, the method also includes:
The first base station judges the size of first channel SNRs and preset threshold；
When first channel SNRs are greater than or equal to the preset threshold, the first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device.
The third possible implementation with reference to first aspect, in a fourth possible implementation of the first aspect, when first channel SNRs are less than the preset threshold, the first base station is according to the estimation range and the antenna structure information of the mobile device, obtain the first prediction antenna configuration information, comprising:
The antenna structure information of the mobile device and second channel signal-to-noise ratio are sent to the second base station by the first base station, wherein, the second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between the mobile device and second base station, and second base station is one or more neighbor base stations of the first base station；
The first base station is according to the second of second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained, the second prediction antenna configuration information is that second base station is determined according to second channel relativity measurement, the antenna structure information of the mobile device and the second channel signal-to-noise ratio.
The 4th kind of possible implementation with reference to first aspect, in the fifth possible implementation of the first aspect, the first base station obtains the first prediction antenna configuration information according to the second of second base station feedback the prediction antenna configuration information, comprising:
Second prediction antenna configuration information of the first base station based on second base station feedback, according to most sparse principle, obtain the first prediction antenna configuration information, the first prediction antenna configuration information further includes the mark of the serving BS of the prediction antenna of the mobile device, and the serving BS includes the first base station and second base station.
With reference to first aspect, the first of first aspect into the 5th kind of possible implementation any one, in the sixth possible implementation of the first aspect, first channel SNRs and the first channel relevancy measurement are to be obtained by the mobile device using pre-set prediction antenna measurement, and the pre-set prediction antenna is mobile device configuration by the mobile device default configuration or by the first base station.
Second aspect, the present invention provide a kind of prediction antenna method for reconfiguration, which comprises
Mobile device obtains channel SNRs and relativity measurement, wherein the channel SNRs and relativity measurement communicate the noise of used channel for the mobile device and base station between when relativity measurement, the mobile device include mutiple antennas；
The mobile device is according to the mapping relations of noise when relativity measurement and estimation range, obtain the channel SNRs and the corresponding estimation range of relativity measurement, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
The mobile device configures the prediction antenna according to the estimation range and the antenna structure information of the mobile device.
In conjunction with second aspect, in the first possible implementation of the second aspect, the mobile device is according to the estimation range and the antenna structure information of the mobile device, configuration prediction antenna, comprising:
The mobile device is using the position where the antenna with the channel SNRs and relativity measurement as the center of circle, using the estimation range as radius, determines the group where the antenna with the channel SNRs and relativity measurement；
The maximum antenna configuration of channel SNRs in described group is the prediction antenna by the mobile device.
In conjunction with second aspect, in a second possible implementation of the second aspect, the mobile device is according to the estimation range and the antenna structure information of the mobile device, configuration prediction antenna, comprising:
The mobile device determines that having the antenna of the channel SNRs and relativity measurement is the prediction antenna；
The mobile device is using the position where the prediction antenna as the center of circle, using the estimation range as radius, determines the group where the prediction antenna；
It is the prediction antenna in described group that the mobile device, which configures the prediction antenna,.
In conjunction with second aspect, second aspect the first into second of possible implementation any one, in the third possible implementation of the second aspect, the mobile device is according to the mapping relations of noise when relativity measurement and estimation range, before obtaining the channel SNRs and the corresponding estimation range of relativity measurement, the method also includes:
The mobile device receives system message, and the system message carries the mapping relations of the noise when relativity measurement and estimation range.
In conjunction with second aspect, second aspect the first into the third possible implementation any one, in the fourth possible implementation of the second aspect, the mobile device is according to the estimation range and the antenna structure information of the mobile device, after configuration prediction antenna, the method also includes:
The mobile device sends the configuration information of the prediction antenna to the base station；
The mobile device receives the configure-ack message of the prediction antenna of the base station feedback.
The third aspect, the present invention provide a kind of prediction antenna reconfiguration device, and described device includes obtaining module, processing module and sending module, wherein the processing module includes first processing units and the second processing unit；
The acquisition module, for obtaining the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement are communicate the noise of used first channel between mobile device and the prediction antenna reconfiguration device when relativity measurement, the mobile device include mutiple antennas；
The first processing units, for the mapping relations according to noise when relativity measurement and estimation range, it obtains first channel SNRs and the first channel relevancy and measures corresponding estimation range, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
Described the second processing unit obtains the first prediction antenna configuration information for the antenna structure information according to the estimation range and the mobile device, and the first prediction antenna configuration information includes the mark of the prediction antenna；
The sending module, for sending the first prediction antenna configuration information to the mobile device.
In conjunction with the third aspect, in the first possible implementation of the third aspect, described the second processing unit is specifically used for:
The center of circle is in the position where antenna to use first channel, using the estimation range as radius, Determine the group where the antenna using first channel；
It determines in described group, the maximum antenna of channel SNRs is as the prediction antenna；
Using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
In conjunction with the third aspect, in the second possible implementation of the third aspect, described the second processing unit is specifically used for:
Determine that using the antenna of first channel be prediction antenna；
Using the position where the prediction antenna as the center of circle, using the estimation range as radius, the group where the prediction antenna is determined；
Using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
In conjunction with the third aspect, the third aspect the first into second of possible implementation any one, in the third possible implementation of the third aspect, described device further include: judgment module,
The judgment module, for judging the size of first channel SNRs and preset threshold；
If the judgment module determines that first channel SNRs are greater than or equal to the preset threshold, described the second processing unit is triggered according to the estimation range and the antenna structure information of the mobile device, obtains the first prediction antenna configuration information.
In conjunction with the third possible implementation of the third aspect, in the fourth possible implementation of the third aspect, if the judgment module determines that first channel SNRs are less than the preset threshold, described the second processing unit is specifically used for:
The antenna structure information of the mobile device and second channel signal-to-noise ratio are sent to the second base station, wherein, the second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between the mobile device and second base station, and second base station is one or more neighbor base stations of the first base station；
According to the second of second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained, the second prediction antenna configuration information is that second base station is determined according to second channel relativity measurement, the antenna structure information of the mobile device and the second channel signal-to-noise ratio.
In conjunction with the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect, described the second processing unit is used for according to the second of second base station feedback the prediction antenna configuration information, when obtaining the first prediction antenna configuration information, specifically:
The second prediction antenna configuration information based on second base station feedback is obtained according to most sparse principle Obtain the first prediction antenna configuration information, the first prediction antenna configuration information further includes the mark of the serving BS of the prediction antenna of the mobile device, and the serving BS includes the base station and second base station for being integrated with the prediction antenna reconfiguration device.
In conjunction with the third aspect, the third aspect the first into the 5th kind of possible implementation any one, in the 6th kind of possible implementation of the third aspect, first channel SNRs and the first channel relevancy measurement are to be obtained by the mobile device using pre-set prediction antenna measurement, and the pre-set prediction antenna is mobile device configuration by the mobile device default configuration or the base station by being integrated with the prediction antenna reconfiguration device.
Fourth aspect, the present invention provide a kind of prediction antenna reconfiguration system, the system comprises:
Mobile device and such as described in any item prediction antenna reconfiguration devices of the third aspect, the mobile device includes mutiple antennas.
5th aspect, the present invention provide a kind of prediction antenna reconfiguration device, and described device includes obtaining module and processing module, wherein the processing module includes first processing units and the second processing unit；
The acquisition module, for obtaining channel SNRs and relativity measurement, wherein, the channel SNRs and relativity measurement communicated between the mobile device and base station used in the noise of channel when relativity measurement, the mobile device include mutiple antennas；
The first processing units, for the mapping relations according to noise when relativity measurement and estimation range, obtain the channel SNRs and the corresponding estimation range of relativity measurement, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
Described the second processing unit configures the prediction antenna for the antenna structure information according to the estimation range and the mobile device.
In conjunction with the 5th aspect, in the first possible implementation of the 5th aspect, described the second processing unit is specifically used for:
Using the position where the antenna with the channel SNRs and relativity measurement as the center of circle, using the estimation range as radius, the group where the antenna with the channel SNRs and relativity measurement is determined；
It is the prediction antenna by the maximum antenna configuration of channel SNRs in described group.
In conjunction with the 5th aspect, in second of possible implementation of the 5th aspect, described the second processing unit is specifically used for:
It is the prediction antenna that determining, which has the antenna of the channel SNRs and relativity measurement,；
Using the position where the prediction antenna as the center of circle, using the estimation range as radius, the group where the prediction antenna is determined；
Configuring the prediction antenna is the prediction antenna in described group.
In conjunction with the 5th aspect, the 5th aspect the first into second of possible implementation any one, in the third possible implementation of the 5th aspect, described device further includes the first receiving module, for receiving system message, the system message carries the mapping relations of the noise when relativity measurement and estimation range.
In conjunction with the 5th aspect, the 5th aspect the first into the third possible implementation any one, in the 4th kind of possible implementation of the 5th aspect, described device further includes sending module and the second receiving module,
The sending module, for sending the configuration information of the prediction antenna to the base station；
Second receiving module, the configure-ack message of the prediction antenna for receiving the base station feedback.
In conjunction with the 5th aspect, the 5th aspect the first into the 4th kind of possible implementation any one, the 5th aspect the 5th kind of possible implementation in, the prediction antenna reconfiguration device be mobile device, the mobile device includes mutiple antennas.
The present invention provides a kind of prediction antenna method for reconfiguration, apparatus and system, wherein, first base station is according to the antenna structure information of mobile device, first channel SNRs and the first channel relevancy measurement, obtain the first prediction antenna configuration information, and the first prediction antenna configuration information is sent to mobile device, it is obtained due to the first prediction antenna configuration information according to the first channel SNRs and the first channel relevancy measurement, therefore, first prediction antenna configuration information can accurately reflect the present situation of communication channel between mobile device and first base station, so that can accurately reflect the channel conditions for being predicted antenna using the channel information that the prediction antenna measurement of the first prediction antenna configuration information configuration obtains, and then guarantee the handling capacity of system.
Detailed description of the invention
In order to illustrate more clearly of the present invention or technical solution in the prior art, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without any creative labor, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is to predict antenna system model schematic in the prior art；
Fig. 2 is the flow diagram of present invention prediction antenna method for reconfiguration embodiment one；
Fig. 3 a is the relationship of estimation range and correlation and channel circumstance；
Fig. 3 b is the relationship of estimation range and NMSE and channel circumstance；
Fig. 4 is the exemplary diagram of the first prediction antenna configuration information in present invention prediction antenna method for reconfiguration embodiment two；
Fig. 5 is the flow diagram of present invention prediction antenna method for reconfiguration embodiment three；
Fig. 6 is the exemplary diagram of the first prediction antenna configuration information in present invention prediction antenna method for reconfiguration embodiment three；
Fig. 7 is the flow diagram of present invention prediction antenna method for reconfiguration example IV；
Fig. 8 is the flow diagram of present invention prediction antenna method for reconfiguration embodiment five；
Fig. 9 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment one；
Figure 10 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment two；
Figure 11 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment three；
Figure 12 is the structural schematic diagram of present invention prediction antenna reconfiguration device example IV.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
Technical solution provided in an embodiment of the present invention can be applied to various cordless communication networks, such as: global mobile communication (global system for mobile communication, referred to as: GSM) system, CDMA (code division multiple access, referred to as: CDMA) system, wideband code division multiple access (wideband code division multiple access, referred to as: WCDMA) system, universal mobile communications (universal mobile telecommunication system, referred to as: UMTS) system, general grouped wireless Business (general packet radio service, referred to as: GPRS) system, long term evolution (long term evolution, referred to as: LTE) system, advanced long term evolution (long term evolution advanced, referred to as: LTE-A) system, global interconnection inserting of microwave (worldwide interoperability for microwave access, referred to as: WiMAX) system etc.. Term " network " and " system " can be replaced mutually.
In embodiments of the present invention, base station (base station, referred to as: BS), which can be, can provide the communication overlay of specific physical region with mobile device or other communication sites such as relay, the equipment communicated, base station.For example, base station specifically can be base transceiver station (Base Transceiver Station, referred to as: BTS) or base station controller (Base Station Controller, referred to as: BSC) in GSM or CDMA；The radio network controller (Radio Network Controller, referred to as: RNC) being also possible in the node B in UMTS (Node B, referred to as: NB) or UMTS；It can also be the evolved base station (Evolutional Node B, referred to as: ENB or eNodeB) in LTE；Alternatively, other access network equipments for the offer access service being also possible in cordless communication network, the present invention do not limit.
The embodiment of the present invention provides a kind of prediction antenna method for reconfiguration, apparatus and system, pass through antenna structure information, channel SNRs and the relativity measurement of mobile device, obtain prediction antenna configuration information, it is obtained due to prediction antenna configuration information according to channel SNRs and relativity measurement, therefore, prediction antenna configuration information can accurately reflect the present situation of communication channel between mobile device and base station.Channel measurement is carried out using according to the prediction antenna of prediction antenna configuration information configuration, obtained channel information can accurately reflect the channel conditions for being predicted antenna, and then guarantee the handling capacity of system.The embodiment of the present invention by effectively adjustment prediction antenna configuration, can guarantee mobile device, especially cell edge mobile device, performance.
Fig. 2 is the flow diagram of present invention prediction antenna method for reconfiguration embodiment one.The embodiment of the present invention provides a kind of prediction antenna method for reconfiguration, and this method can be executed by arbitrarily executing the device of prediction antenna method for reconfiguration, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in a base station.As shown in Fig. 2, this method comprises:
S201, first base station obtain the first channel SNRs and the first channel relevancy measurement.
Wherein, the first channel SNRs and the first channel relevancy measurement communicate the noise of used first channel when relativity measurement for mobile device and first base station between.In the embodiment, mobile device includes mutiple antennas.
Specifically, first base station can obtain the first channel SNRs and the first channel relevancy measurement in several ways.For example, after mobile device networks, channel measurement is carried out using the prediction antenna of default configuration and is reported to first base station, so that first base station obtains the first channel SNRs and the first channel relevancy measurement.Alternatively, the uplink signal that first base station measurement mobile device is sent, to obtain the first channel letter When the first channel relevancy of making an uproar is measured.Therefore, the concrete mode of the first channel SNRs and the first channel relevancy measurement is obtained for first base station, the present invention not limits.
It should be noted that " first " and " second " is only used for distinguishing different base station or channel SNRs or relativity measurement or prediction antenna configuration information in any embodiment of that present invention, it is not offered as the limitation of quantity.
S202, first base station obtain the first channel SNRs and the first channel relevancy measure corresponding estimation range according to the mapping relations of noise when relativity measurement and estimation range.
Wherein, estimation range is the alternative antenna that carries out data transmission of channel information based on prediction antenna estimation at a distance from the prediction antenna.
Research shows that, predict the estimation range and signal-to-noise ratio (signal to noise ratio of antenna, referred to as: SNR) and relativity measurement (normalized mean square prediction error, abbreviation NMSE) it is related, also related with communication environments, looking at straight under (line-of-sight, abbreviation LOS) and non-direct-view (non-line-of-sight, referred to as: NLOS) environment has different performances.Wherein, relativity measurement can be correlation, or normalized mean squared error etc..As shown in Figure 3a and Figure 3b shows, the correlation of channel is higher, and the normalized mean squared error of channel is with regard to smaller.
Fig. 3 a shows correlation and estimation range and the relationship of SNR, wherein horizontal axis represents estimation range；The longitudinal axis represents correlation；Dotted line, solid line and the corresponding SNR of chain-dotted line are from high to low.By taking the lines with circle in Fig. 3 a as an example (i.e. under LOS environment), in identical estimation range, such as at 1 times of wavelength, correlation is respectively 0.96,0.90 and 0.82, embodies that SNR is higher, and correlation is higher.
Fig. 3 b shows NMSE and estimation range and the relationship of SNR, wherein horizontal axis represents estimation range；The longitudinal axis represents NMSE, unit are as follows: dB；Dotted line, solid line and the corresponding SNR of chain-dotted line are from high to low.By taking the lines with circle in Fig. 3 b as an example (i.e. under LOS environment), in identical estimation range, such as at 1 times of wavelength, NMSE is respectively -5.0dB, -7.8dB and -11.0dB, embodies that SNR is higher, and NMSE is smaller.
Based on the studies above as a result, the mapping relations of default settings noise when relativity measurement and estimation range, and it is stored in first base station.
Optionally, network generates NMSE, SNR and estimation range mapping table of SNR, NMSE and estimation range under each base station previously according to channel circumstance, for example, as shown in table 1.
Table 1
In table 1, first row numerical value indicates that the numerical value of NMSE is lower, then channel is more related to the requirement of the NMSE of channel；The first row numerical value indicates the SNR of channel, unit are as follows: dB；Remaining numerical value indicates estimation range under the conditions of given NMSE and SNR, wherein estimation range is indicated using the multiple of wavelength, for example, 1.7 indicate that estimation range is 1.7 times of wavelength.
For example, reference table 1, it is assumed that the value that the first channel relevancy measures (i.e. NMSE) is 0.1, and when the first channel SNRs are 15dB, estimation range is 2.3 times of wavelength.
Optionally, after the measurement that first base station receives mobile device reports, the estimation range that current SNR and relativity measurement can support is identified according to table 1.
First base station reads the mapping relations of above-mentioned noise when relativity measurement and estimation range, and searches in the noise when mapping relations of relativity measurement and estimation range and to obtain the first channel SNRs and the corresponding estimation range of the first channel relevancy measurement.
Supplementary explanation be, when not including the first channel SNRs in the noise when mapping relations of relativity measurement and estimation range, it can be used and be less than first channel SNRs, simultaneously, first channel SNRs are replaced with the immediate signal-to-noise ratio of the first channel SNRs, determine the replaced signal-to-noise ratio corresponding estimation range under the first channel relevancy measurement.Similarly, when in the noise when mapping relations of relativity measurement and estimation range not comprising the first channel relevancy measurement, it can refer to the above method and determine replaced channel relevancy measurement corresponding estimation range under the first channel SNRs.
S203, first base station obtain the first prediction antenna configuration information according to estimation range and the antenna structure information of mobile device.
Wherein, the first prediction antenna configuration information includes the mark for predicting antenna.
When mobile device is initially accessed first base station, mobile device reports the antenna structure information of the mobile device to first base station.Antenna structure information for example can the structural informations such as aerial array specification.
Since the antenna structure information of mobile device is relatively-stationary, so, caused by the difference of the first prediction antenna configuration information is mainly the change because of estimation range.
S204, first base station send the first prediction antenna configuration information to mobile device.
In the embodiment of the present invention, first base station is according to the antenna structure information of mobile device, first channel SNRs and the first channel relevancy measurement, obtain the first prediction antenna configuration information, and the first prediction antenna configuration information is sent to mobile device, it is obtained due to the first prediction antenna configuration information according to the first channel SNRs and the first channel relevancy measurement, therefore, first prediction antenna configuration information can accurately reflect the present situation of communication channel between mobile device and first base station, so that can accurately reflect the channel conditions for being predicted antenna using the channel information that the prediction antenna measurement of the first prediction antenna configuration information configuration obtains, and then guarantee the handling capacity of system.
In the above-described embodiments, it for S203, can be accomplished in several ways.
In a kind of implementation, S203 may include: position where antenna of the first base station to use the first channel as the center of circle, using estimation range as radius, determine the group where the antenna using the first channel；First base station determines in the group that the maximum antenna of channel SNRs is as prediction antenna；First base station is using the group and predicts the information of antenna as the first prediction antenna configuration information.Wherein, the first prediction antenna configuration information can also include the mark for the alternative antenna that prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
Such as, in Fig. 4, V indicates the travel speed of mobile device, and coil indicates antenna packet conditions, and the antenna of broken line representation is the prediction antenna in the grouping of each antenna, remaining antenna is the alternative antenna of the group, antenna spacing is 0.5 times of wavelength, and from right to left, number is respectively 1~9, the channel SNRs of each antenna are respectively 15.2dB, 14.8dB, 13.3dB, 12.5dB, 11.3dB, 10.7dB, 10.2dB, 9.8dB and 9.3dB, NMSE=0.1.
Because the channel SNRs of first antenna are 15.2dB, tabling look-up 1 can obtain, the antenna can accurately predict the estimation range in 2.3 times of wavelength thereafter, therefore, when selecting first antenna as prediction antenna, replacing number (from right to left) according to the channel information (channel matrix) that the antenna obtains is 1~5 5 antennas, as shown in first coil in Fig. 4.The channel SNRs of 6th antenna are 10.7dB, and looking into 1 table can obtain, which can substitute the channel information for 4 antennas that number is 6~9.The antenna of broken line representation as shown in Figure 4 is ultimately formed as prediction antenna, the range that coil is drawn a circle to approve is estimation range, and the antenna in coil is antenna grouping.
In another implementation, S203 may include: that first base station determines that using the antenna of the first channel be prediction antenna；First base station is using the position where above-mentioned prediction antenna as the center of circle, using estimation range as radius, determines the group where prediction antenna；First base station is using group and predicts the information of antenna as the first prediction Antenna configuration information.Wherein, the first prediction antenna configuration information can also include the mark for the alternative antenna that prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
Optionally, before S203, this method can also include: the size that first base station judges the first channel SNRs and preset threshold.
When the first channel SNRs be greater than or equal to preset threshold when, stood in reconfigure.Antenna configuration information is predicted for above-mentioned mobile device configuration first according to the antenna structure information of estimation range and mobile device by first base station, and the first prediction antenna configuration information is sent to mobile device, so that mobile device carries out the measurement and feedback of channel information with prediction antenna using the first prediction antenna configuration information configuration prediction antenna；First base station carries out data transmission the antenna being predicted with the channel information.
It when the first channel SNRs are less than preset threshold, is then reconfigured between being stood, i.e., first base station interacts the prediction antenna configuration information for negotiating the mobile device with one or more neighbor base stations of first base station.At this time.S203 can be specifically included: the antenna structure information of mobile device and second channel signal-to-noise ratio are sent to the second base station by first base station, wherein, second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between mobile device and the second base station, and the second base station is one or more neighbor base stations of first base station；First base station is according to the second of the second base station feedback the prediction antenna configuration information, obtain the first prediction antenna configuration information, wherein, the second prediction antenna configuration information is that the second base station is determined according to second channel relativity measurement, the antenna structure information of mobile device and second channel signal-to-noise ratio.In the embodiment, second channel signal-to-noise ratio is to measure the downlink signal that the second base station is sent by mobile device to obtain.Wherein, second channel relativity measurement is default settings, or, being in advance the second base station configuration etc. by network, as shown in table 1.
Therefore, second base station is after receiving the antenna structure information of mobile device of first base station transmission and second channel signal-to-noise ratio, it can be according to the antenna structure information and second channel signal-to-noise ratio of the mobile device, and above-mentioned second channel relativity measurement, using processing method identical with the first prediction antenna configuration information of first base station acquisition in above-described embodiment, second base station obtains the second prediction antenna configuration information, and details are not described herein again.
Optionally, when antenna configuration information is predicted in relativity measurement, acquisition second to the noise that used channel is communicated between terminal device that one: the second base station of mode can be obtained according to its own；Two: the second base station of mode can integrate the noise for communicate used channel between terminal device of its own acquisition when relativity measurement, and second channel relativity measurement, the antenna structure information of received above-mentioned mobile device and second channel signal-to-noise ratio, obtain the second prediction antenna configuration information.In contrast, according to use Mode two obtains the second prediction antenna configuration information and carries out predicting that antenna reconfigures, and can accurately more reflect the channel conditions for being predicted antenna, be further ensured that the handling capacity of system.
Wherein, first base station obtains the first prediction antenna configuration information according to the second of the second base station feedback the prediction antenna configuration information, may include: second prediction antenna configuration information of the first base station based on the second base station feedback, according to most sparse principle, the first prediction antenna configuration information is obtained.At this point, the first prediction antenna configuration information can also include the mark of the serving BS of the prediction antenna of mobile device, serving BS includes first base station and the second base station.
For example, Fig. 5 shows between first base station 51, the second base station 52 and the second base station 53 the prediction antenna configuration information that mobile device 54 is negotiated in interaction, wherein the second base station 52 and the second base station 53 are the neighbor base station of the first base station 51.Under the scene, prediction antenna method for reconfiguration may include:
S501, first base station 51 receive the channel measurement information that mobile device 54 is sent.
The channel measurement information includes the first channel SNRs and relativity measurement of the first channel between mobile device 54 and first base station, the information such as second channel signal-to-noise ratio of second channel between mobile device 54 and the second base station 52 and the second base station 53.Wherein, the information such as the second base station 52 and the corresponding second channel signal-to-noise ratio in the second base station 53 and second channel relativity measurement can be identical or different, and the embodiment of the present invention is not limited.
S502, first base station 51 judge the size of the first channel SNRs and preset threshold, if judging result is that the first channel SNRs are less than preset threshold, first base station 51, the second base station 52 and the second base station 53 are jointly mobile device configuration the first prediction antenna configuration information.
In addition, first base station 51 stands alone as the configuration of mobile device 54 first prediction antenna configuration information, and details are not described herein again if the first channel SNRs are greater than or equal to preset threshold.
The antenna structure information and second channel signal-to-noise ratio that S503, first base station 51 send mobile device 54 are to the second base station 52 and the second base station 53.
S504, the second base station 52 and the second base station 53 determine the second prediction antenna configuration information according to second channel relativity measurement, the antenna structure information of mobile device 54 and second channel signal-to-noise ratio.
Wherein, the second prediction antenna configuration information may include the information such as the mark/antenna grouping mark of group for the alternative antenna for predicting that antenna mark, prediction antenna are serviced.
S505, the second base station 52 and the second base station 53 feedback the second prediction antenna configuration information are to first base station 51.
S506, first base station 51 choose most sparse prediction antenna in the second prediction antenna configuration information Configuration obtains the first prediction antenna configuration information.
Specifically, first base station 51 chooses prediction antenna configuration from the feedback of the second base station 52 and the second base station 53, and fusion first base station 51 is handed down to mobile device 54 with postponing.Wherein, the first prediction antenna configuration information may include the mark for the alternative antenna for predicting that the serving BS mark of antenna, prediction antenna are serviced or mark of group that prediction antenna is serviced etc..
Illustrate S506.As shown in fig. 6, second prediction antenna configuration information content as shown in the first row that the second base station 52 generates；The second of second base station 53 generation predicts antenna configuration information content as shown in the second row；In view of reducing feedback overhead, select the result of decision under most sparse prediction antenna configuration criterion, first prediction antenna configuration information content as shown in the third line that first base station 51 determines provides service by different base stations according to the different antennae of the first prediction antenna configuration information configuration mobile device 54 simultaneously.
S507, first base station 51 send the first prediction antenna configuration information to mobile device 54.
In the above-described embodiments, the first channel SNRs and the first channel relevancy measurement are to be obtained by mobile device using default antenna measurement, which is mobile device default configuration or interacts configuration with the mobile device by first base station, and the present invention not limits.
Accordingly, illustrate the opposite end embodiment of the embodiment of base station side shown in Fig. 2, the i.e. embodiment of mobile device side below.
Fig. 7 is the flow diagram of present invention prediction antenna method for reconfiguration example IV.The embodiment of the present invention provides a kind of prediction antenna method for reconfiguration, is suitable for inclusion in the system for deploying the mobile device of mutiple antennas.This method can be executed by arbitrarily executing the device of prediction antenna method for reconfiguration, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in the mobile device for deploying mutiple antennas.As shown in fig. 7, this method comprises:
S701, mobile device receive the first prediction antenna configuration information that first base station is sent.
The first prediction antenna configuration information includes prediction antenna mark, the first prediction antenna configuration information is that first base station is measured according to the antenna structure information of the mobile device, the first channel SNRs and the first channel relevancy and obtained, and the first channel SNRs and the first channel relevancy measurement communicate the noise of used first channel when relativity measurement for the mobile device and the first base station between.
The mark of S702, mobile device according to prediction antenna, configuration prediction antenna.
Specifically, mobile device matches the mark of above-mentioned default antenna in the antenna mark of its mutiple antennas, and the antenna configuration that will match to is prediction antenna.
Mobile device carries out channel measurement using the prediction antenna, obtains channel information and feeds back to first base station, and first base station is carried out data transmission by prediction antenna with mobile device using the channel information.
In the embodiment of the present invention, mobile device is according to the first prediction antenna configuration information, configuration prediction antenna, since the first prediction antenna configuration information is first base station according to the first channel SNRs and the measurement acquisition of the first channel relevancy, therefore, first prediction antenna configuration information can accurately reflect the present situation of communication channel between mobile device and first base station, so that the channel information obtained using the prediction antenna measurement can accurately reflect the channel conditions for being predicted antenna, and then guarantee the handling capacity of system.
Because embodiment as shown in Figure 7 is corresponded to each other with embodiment illustrated in fig. 2, therefore, as follows only schematic illustration mobile device side the step of, specific descriptions can refer to above-mentioned base station side embodiment.
In the above-described embodiments, the first prediction antenna configuration information can also include the mark for the group that the serving BS mark of prediction antenna, the mark for predicting the alternative antenna that antenna is serviced or prediction antenna are serviced.Optionally, the first prediction antenna configuration information can also include the serving BS of prediction antenna, etc..
Wherein, before S701, this method can also include: mobile device using default antenna the first channel information of measurement, which is mobile device default configuration or interacts configuration with mobile device by first base station；And mobile device sends the first channel information to first base station.
What above-described embodiment embodied is the mapping relations of base station stored NMSE, SNR and estimation range, and the process flow of prediction antenna reconfiguration information is triggered by base station and generated according to channel information.
In addition, in view of every antenna of mobile device can carry out signal quality measured, and with the promotion of hardware capabilities, mobile device has the characteristics that low cost, big storage and high operational capability, therefore, mobile device effectively and can be triggered in real time and execute prediction antenna reconfiguration operation.
Fig. 8 is the flow diagram of present invention prediction antenna method for reconfiguration embodiment five.The embodiment of the present invention provides a kind of prediction antenna method for reconfiguration, and this method can be executed by arbitrarily executing the device of prediction antenna method for reconfiguration, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in the mobile device for deploying mutiple antennas.As shown in figure 8, this method comprises:
S801, mobile device obtain channel SNRs and relativity measurement.
Wherein, channel SNRs and relativity measurement communicated between the mobile device and base station used in the noise of channel when relativity measurement, the mobile device include mutiple antennas.
Specifically, mobile device is completed after being initially accessed, and is carried out channel quality measurement and is obtained channel SNRs and relativity measurement.
S802, mobile device are obtained according to the mapping relations of noise when relativity measurement and estimation range Above-mentioned channel SNRs and the corresponding estimation range of relativity measurement.
Wherein, estimation range is the alternative antenna that carries out data transmission of channel information based on prediction antenna estimation at a distance from the prediction antenna.
Research shows that, predict the estimation range and signal-to-noise ratio (signal to noise ratio of antenna, referred to as: SNR) and relativity measurement (normalized mean square prediction error, abbreviation NMSE) it is related, also related with communication environments, looking at straight under (line-of-sight, abbreviation LOS) and non-direct-view (non-line-of-sight, referred to as: NLOS) environment has different performances.Wherein, relativity measurement can be correlation, or normalized mean squared error etc..As shown in Figure 3a and Figure 3b shows, the correlation of channel is higher, and the normalized mean squared error of channel is with regard to smaller.Wherein, embodiment as shown in Figure 2 is detailed in for the explanation of Fig. 3 a and Fig. 3 b, details are not described herein again.
Based on the studies above as a result, the mapping relations of default settings noise when relativity measurement and estimation range, and store in a mobile device.
Optionally, network generates NMSE, SNR and estimation range mapping table of SNR, NMSE and estimation range under each base station previously according to channel circumstance, for example, as shown in table 1.NMSE, SNR and estimation range mapping table are sent to mobile device by network.
Specifically, for S802, it may include: the mapping relations that mobile device reads noise when relativity measurement and estimation range, obtain the estimation range of channel SNRs and relativity measurement support
S803, mobile device are according to above-mentioned estimation range and the antenna structure information of mobile device, configuration prediction antenna.
In the case where the antenna structure of mobile device is given, according to the relationship (such as mapping relations) between estimation range, channel SNRs and relativity measurement, mobile device can be determined using which antenna of mobile device as prediction antenna, and be configured to it.
In the embodiment of the present invention, mobile device is measured according to its antenna structure information, the first channel SNRs and the first channel relevancy, configuration prediction antenna, therefore, the prediction antenna can accurately reflect the present situation of communication channel between mobile device and first base station, so that the channel information obtained using the prediction antenna measurement can accurately reflect the channel conditions for being predicted antenna, and then guarantee the handling capacity of system.
In the above-described embodiments, S803 can be accomplished in several ways.
In a kind of implementation, S803 may include: mobile device using the position where the antenna with above-mentioned channel SNRs and relativity measurement as the center of circle, using above-mentioned estimation range as radius, determine have it is above-mentioned Group where the antenna of channel SNRs and relativity measurement；The maximum antenna configuration of channel SNRs in the group is prediction antenna by mobile device.
In another implementation, S803 may include: that mobile device determines have the antenna of above-mentioned channel SNRs and relativity measurement for prediction antenna；Mobile device is using the position where the prediction antenna as the center of circle, using above-mentioned estimation range as radius, determines the group where the prediction antenna；It is the prediction antenna in above-mentioned group that mobile device, which configures the prediction antenna,.
It should be noted that, since mobile device includes mutiple antennas, may there are one or at least two antennas for prediction antenna in multiple antenna, therefore, according to the antenna structure information and estimation range of mobile device in above-described embodiment, this mutiple antennas is divided into different groups, then in each group, one of antenna is determined as prediction antenna, remaining antenna is alternative antenna.
On the basis of the above embodiments, before S802, this method can also include: that mobile device receives system message, which carries the mapping relations of noise when relativity measurement and estimation range.
Specifically, wireless system generates the mapping relations of SNR, NMSE and estimation range under each base station previously according to channel circumstance.The mapping relations are handed down to mobile device and/or base station by system message by wireless system.
Further, after S803, this method can also include: that mobile device sends the configuration information of prediction antenna to base station；And receive the configure-ack message of the prediction antenna of the base station feedback.The embodiment can be further ensured that the success that prediction antenna reconfigures.
Supplementary explanation, above-described embodiment is that base station and mobile device reconfigure prediction antenna respectively, in practical applications, the negotiations process of mobile device and base station can be triggered according to information such as states of affairs.
Fig. 9 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment one.The embodiment of the present invention provides a kind of prediction antenna reconfiguration device, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in a base station.As shown in figure 9, prediction antenna reconfiguration device 90 includes: to obtain module 91, processing module 92 and sending module 93.Wherein, processing module 92 includes first processing units 921 and the second processing unit 922.
Wherein, module 91 is obtained for obtaining the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement are that mobile device and predicting communicate the noise of used first channel when relativity measurement, the mobile device include mutiple antennas between antenna reconfiguration device 90.First processing units 921 are used for the mapping relations according to noise when relativity measurement and estimation range, obtain above-mentioned first channel SNRs and the first channel relevancy measures corresponding estimation range, the prediction model It encloses for the alternative antenna that carries out data transmission of channel information based on prediction antenna estimation at a distance from the prediction antenna.The second processing unit 922 is used for the antenna structure information according to above-mentioned estimation range and mobile device, obtains the first prediction antenna configuration information, which includes the mark of above-mentioned prediction antenna.Sending module 93 is for sending the first prediction antenna configuration information to mobile device.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 2, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
In the above-described embodiments, the second processing unit 922 can be specifically used for: the center of circle is in the position where antenna to use the first channel, using estimation range as radius, determines the group where the antenna using above-mentioned first channel；It determines in the group, the maximum antenna of channel SNRs is as prediction antenna；Using the group and the information of the prediction antenna as the first prediction antenna configuration information.The first prediction antenna configuration information can also include the mark for the alternative antenna that the prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
Optionally, the second processing unit 922 can be specifically used for: determine that using the antenna of the first channel be prediction antenna；To predict the position where antenna as the center of circle, using estimation range as radius, the group where prediction antenna is determined；Using group and predict the information of antenna as the first prediction antenna configuration information.Wherein, the first prediction antenna configuration information can also include the mark for the alternative antenna that prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
Further, prediction antenna reconfiguration device 90 can also include: judgment module (not shown).The judgment module can be used for judging the size of the first channel SNRs and preset threshold.
If judgment module determines that the first channel SNRs are greater than or equal to preset threshold, the second processing unit 922 is triggered according to estimation range and the antenna structure information of mobile device, obtains the first prediction antenna configuration information.
If judgment module determines that the first channel SNRs are less than preset threshold, the second processing unit 922 can be specifically used for: the antenna structure information of mobile device and second channel signal-to-noise ratio are sent to the second base station.Wherein, second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between mobile device and the second base station, which is one or more neighbor base stations of first base station；According to the second of the second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained.Wherein, the second prediction antenna configuration information is that the second base station is determined according to second channel relativity measurement, the antenna structure information of mobile device and second channel signal-to-noise ratio.
At this point, the second processing unit 922 is used for according to the second of the second base station feedback the prediction antenna configuration letter Breath can be with when obtaining the first prediction antenna configuration information specifically: the second prediction antenna configuration information based on the second base station feedback obtains the first prediction antenna configuration information according to most sparse principle.Optionally, the first prediction antenna configuration information can also include the mark of the serving BS of the prediction antenna of mobile device, which includes the base station and the second base station for being integrated with prediction antenna reconfiguration device 90.
Optionally, the first channel SNRs and the first channel relevancy measurement are to be obtained by mobile device using pre-set prediction antenna measurement.The pre-set prediction antenna is mobile device configuration by mobile device default configuration or the base station by being integrated with prediction antenna reconfiguration device 90.
The embodiment of the present invention also provides a kind of prediction antenna reconfiguration system.The system includes: mobile device and the prediction antenna reconfiguration device such as the offer of above-mentioned any embodiment, wherein the mobile device includes mutiple antennas.
Figure 10 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment two.The embodiment of the present invention provides a kind of prediction antenna reconfiguration device, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in a base station.As shown in Figure 10, prediction antenna reconfiguration device 100 includes: to obtain module 101 and processing module 102.Wherein, processing module 102 includes first processing units 1021 and the second processing unit 1022.
Wherein, module 101 is obtained for obtaining channel SNRs and relativity measurement, wherein channel SNRs and relativity measurement communicate the noise of used channel for mobile device and base station between when relativity measurement, the mobile device include mutiple antennas.First processing units 1021 are used for the mapping relations according to noise when relativity measurement and estimation range, obtain above-mentioned channel SNRs and the corresponding estimation range of relativity measurement, which is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna.The second processing unit 1022 is used for the antenna structure information according to above-mentioned estimation range and mobile device, configuration prediction antenna.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 8, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
In the above-described embodiments, the second processing unit 1022 can be specifically used for: using the position where the antenna with channel SNRs and relativity measurement as the center of circle, using estimation range as radius, determine the group where the antenna with channel SNRs and relativity measurement；It is prediction antenna by the maximum antenna configuration of channel SNRs in the group.
In another implementation, the second processing unit 1022 can be specifically used for: it is prediction antenna that determining, which has the antenna of above-mentioned channel SNRs and relativity measurement,；Using the position where the prediction antenna as the center of circle, Using above-mentioned estimation range as radius, the group where the prediction antenna is determined；Configuring the prediction antenna is the prediction antenna in the group.
On the basis of the above embodiments, prediction antenna reconfiguration device 100 can also include the first receiving module (not shown).First receiving module can be used for receiving system message, which carries the mapping relations of above-mentioned noise when relativity measurement and estimation range.
Further, prediction antenna reconfiguration device 100 can also include sending module (not shown) and the second receiving module (not shown).Wherein, sending module can be used for sending the configuration information of above-mentioned prediction antenna to base station.Second receiving module can be used for receiving the configure-ack message of the above-mentioned prediction antenna of base station feedback.The embodiment can be further ensured that the success that prediction antenna reconfigures.
Optionally, prediction antenna reconfiguration device 100 can be mobile device, which includes mutiple antennas.
Figure 11 is the structural schematic diagram of present invention prediction antenna reconfiguration device embodiment three.The embodiment of the present invention provides a kind of prediction antenna reconfiguration device, which can pass through software and or hardware realization.In the embodiment of the present invention, which be can integrate in a base station.As shown in figure 11, prediction antenna reconfiguration device 110 includes: processor 111 and transmitter 112.
Wherein, processor 111 is for obtaining the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement are that mobile device and predicting communicate the noise of used first channel when relativity measurement, the mobile device include mutiple antennas between antenna reconfiguration device 110；According to the mapping relations of noise when relativity measurement and estimation range, it obtains the first channel SNRs and the first channel relevancy and measures corresponding estimation range, which is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；And according to above-mentioned estimation range and the antenna structure information of mobile device, the first prediction antenna configuration information is obtained, which includes the mark of above-mentioned prediction antenna.Transmitter 112 is for sending above-mentioned first prediction antenna configuration information to mobile device.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 2, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
In a kind of embodiment, processor 111 is used for the antenna structure information according to above-mentioned estimation range and mobile device, when obtaining the first prediction antenna configuration information, be specifically used for: the center of circle is in the position where antenna to use the first channel, using estimation range as radius, the group where the antenna using above-mentioned first channel is determined；It determines in the group, the maximum antenna of channel SNRs is as prediction antenna；By the group and the prediction The information of antenna is as the first prediction antenna configuration information.The first prediction antenna configuration information can also include the mark for the alternative antenna that the prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
In another embodiment, processor 111 is used for the antenna structure information according to above-mentioned estimation range and mobile device, when obtaining the first prediction antenna configuration information, is specifically used for: determining that using the antenna of the first channel be prediction antenna；To predict the position where antenna as the center of circle, using estimation range as radius, the group where prediction antenna is determined；Using group and predict the information of antenna as the first prediction antenna configuration information.Wherein, the first prediction antenna configuration information can also include the mark for the alternative antenna that prediction antenna is serviced.Wherein, the information of group includes the information such as the mark of group.
Further, processor 111 can be also used for judging the size of the first channel SNRs and preset threshold.
If the first channel SNRs are greater than or equal to preset threshold, processor 111 executes following operation using the processing mode illustrated in above-described embodiment: according to estimation range and the antenna structure information of mobile device, obtaining the first prediction antenna configuration information.
If judgment module determines that the first channel SNRs are less than preset threshold, then processor 111 is used for the antenna structure information according to above-mentioned estimation range and mobile device, when obtaining the first prediction antenna configuration information, it is specifically used for: the antenna structure information of mobile device and second channel signal-to-noise ratio is sent to the second base station.Wherein, second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between mobile device and the second base station, which is one or more neighbor base stations of first base station；According to the second of the second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained.Wherein, the second prediction antenna configuration information is that the second base station is determined according to second channel relativity measurement, the antenna structure information of mobile device and second channel signal-to-noise ratio.In the embodiment, processor 111 is used for according to the second of the second base station feedback the prediction antenna configuration information, when obtaining the first prediction antenna configuration information, specifically: the second prediction antenna configuration information based on the second base station feedback, according to most sparse principle, the first prediction antenna configuration information is obtained.Optionally, the first prediction antenna configuration information can also include the mark of the serving BS of the prediction antenna of mobile device, which includes the base station and the second base station for being integrated with prediction antenna reconfiguration device 110.
Optionally, the first channel SNRs and the first channel relevancy measurement are to be obtained by mobile device using pre-set prediction antenna measurement.The pre-set prediction antenna is mobile device configuration by mobile device default configuration or the base station by being integrated with prediction antenna reconfiguration device 110.
The embodiment of the present invention also provides a kind of prediction antenna reconfiguration system.The system includes: mobile device and the prediction antenna reconfiguration device such as the offer of above-mentioned any embodiment, wherein the mobile device includes mutiple antennas.
Figure 12 is the structural schematic diagram of present invention prediction antenna reconfiguration device example IV.As shown in figure 12, prediction antenna reconfiguration device 120 provided in this embodiment includes processor 121 and memory 122.Predict that antenna reconfiguration device 120 can also include transmitter 123, receiver 124.Transmitter 123 can be connected with receiver 124 with processor 121.Wherein, the storage of memory 122 executes instruction, and when predicting that antenna reconfiguration device 120 is run, communicates between processor 121 and memory 122, and processor 121 calls executing instruction in memory 122, for performing the following operations:
Obtain channel SNRs and relativity measurement, wherein channel SNRs and relativity measurement communicate the noise of used channel for mobile device and base station between when relativity measurement, the mobile device include mutiple antennas；According to the mapping relations of noise when relativity measurement and estimation range, obtain above-mentioned channel SNRs and the corresponding estimation range of relativity measurement, which is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；And according to above-mentioned estimation range and the antenna structure information of mobile device, configuration prediction antenna.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 8, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Wherein, processor 121 is used for the antenna structure information according to above-mentioned estimation range and mobile device, when configuration prediction antenna, it can be specifically used for: using the position where the antenna with above-mentioned channel SNRs and relativity measurement as the center of circle, using above-mentioned estimation range as radius, the group where the antenna with above-mentioned channel SNRs and relativity measurement is determined；It is prediction antenna by the maximum antenna configuration of channel SNRs in the group.
Optionally, processor 121 is used for the antenna structure information according to above-mentioned estimation range and mobile device can be specifically used for when antenna is predicted in configuration: determining has the antenna of above-mentioned channel SNRs and relativity measurement for prediction antenna；Using the position where the prediction antenna as the center of circle, using above-mentioned estimation range as radius, the group where the prediction antenna is determined；Configuring the prediction antenna is the prediction antenna in the group.
Further, receiver 124 can be used for receiving system message, which carries the mapping relations of above-mentioned noise when relativity measurement and estimation range.
Further, transmitter 123 can be used for sending the configuration information of above-mentioned prediction antenna to base station.Receiver 124 can be also used for receiving the configure-ack message of the above-mentioned prediction antenna of base station feedback.The reality The success that prediction antenna reconfigures can be further ensured that by applying example.
Optionally, prediction antenna reconfiguration device 120 can be mobile device, which includes mutiple antennas.
In several embodiments provided herein, it should be understood that revealed device and method may be implemented in other ways.Such as, apparatus embodiments described above are merely indicative, such as, the division of the unit or module, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or module can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of equipment or module, can be electrical property, mechanical or other forms.
The module as illustrated by the separation member may or may not be physically separated, and the component shown as module may or may not be physical module, it can and it is in one place, or may be distributed over multiple network units.Some or all of the modules therein can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
Those of ordinary skill in the art will appreciate that: realizing all or part of the steps of above-mentioned each method embodiment, this can be accomplished by hardware associated with program instructions.Program above-mentioned can be stored in a computer readable storage medium.When being executed, execution includes the steps that above-mentioned each method embodiment to the program；And storage medium above-mentioned includes: the various media that can store program code such as ROM, RAM, magnetic or disk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or equivalent substitution of some or all of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (26)

  1. A kind of prediction antenna method for reconfiguration, which is characterized in that the described method includes:
    First base station obtains the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement communicate the noise of used first channel for mobile device and the first base station between, and when relativity measurement, the mobile device include mutiple antennas；
    The first base station is according to the mapping relations of noise when relativity measurement and estimation range, it obtains first channel SNRs and the first channel relevancy and measures corresponding estimation range, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
    The first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device, and the first prediction antenna configuration information includes the mark of the prediction antenna；
    The first base station sends the first prediction antenna configuration information to the mobile device.
  2. The method according to claim 1, wherein the first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device, comprising:
    The center of circle is in position where antenna of the first base station to use first channel, using the estimation range as radius, determines the group where the antenna using first channel；
    The first base station determines in described group that the maximum antenna of channel SNRs is as the prediction antenna；
    The first base station is using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
  3. The method according to claim 1, wherein the first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device, comprising:
    The first base station determines that using the antenna of first channel be prediction antenna；
    The first base station is using the position where the prediction antenna as the center of circle, using the estimation range as radius, determines the group where the prediction antenna；
    The first base station is using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the alternative antenna that the prediction antenna is serviced Mark.
  4. Method according to claim 1-3, which is characterized in that the first base station is according to the estimation range and the antenna structure information of the mobile device, before obtaining the first prediction antenna configuration information, the method also includes:
    The first base station judges the size of first channel SNRs and preset threshold；
    When first channel SNRs are greater than or equal to the preset threshold, the first base station obtains the first prediction antenna configuration information according to the estimation range and the antenna structure information of the mobile device.
  5. According to the method for claim 4, it is characterized in that, the first base station is according to the estimation range and the antenna structure information of the mobile device when first channel SNRs are less than the preset threshold, obtain the first prediction antenna configuration information, comprising:
    The antenna structure information of the mobile device and second channel signal-to-noise ratio are sent to the second base station by the first base station, wherein, the second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between the mobile device and second base station, and second base station is one or more neighbor base stations of the first base station；
    The first base station is according to the second of second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained, the second prediction antenna configuration information is that second base station is determined according to second channel relativity measurement, the antenna structure information of the mobile device and the second channel signal-to-noise ratio.
  6. According to the method described in claim 5, it is characterized in that, the first base station obtains the first prediction antenna configuration information according to the second of second base station feedback the prediction antenna configuration information, comprising:
    Second prediction antenna configuration information of the first base station based on second base station feedback, according to most sparse principle, obtain the first prediction antenna configuration information, the first prediction antenna configuration information further includes the mark of the serving BS of the prediction antenna of the mobile device, and the serving BS includes the first base station and second base station.
  7. Method according to claim 1-6, it is characterized in that, first channel SNRs and the first channel relevancy measurement are to be obtained by the mobile device using pre-set prediction antenna measurement, and the pre-set prediction antenna is mobile device configuration by the mobile device default configuration or by the first base station.
  8. A kind of prediction antenna method for reconfiguration, which is characterized in that the described method includes:
    Mobile device obtains channel SNRs and relativity measurement, wherein the channel SNRs and relativity measurement communicate the noise of used channel for the mobile device and base station between when relativity measurement, the mobile device include mutiple antennas；
    The mobile device is according to the mapping relations of noise when relativity measurement and estimation range, obtain the channel SNRs and the corresponding estimation range of relativity measurement, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
    The mobile device configures the prediction antenna according to the estimation range and the antenna structure information of the mobile device.
  9. According to the method described in claim 8, it is characterized in that, the mobile device is according to the estimation range and the antenna structure information of the mobile device, configuration prediction antenna, comprising:
    The mobile device is using the position where the antenna with the channel SNRs and relativity measurement as the center of circle, using the estimation range as radius, determines the group where the antenna with the channel SNRs and relativity measurement；
    The maximum antenna configuration of channel SNRs in described group is the prediction antenna by the mobile device.
  10. According to the method described in claim 8, it is characterized in that, the mobile device is according to the estimation range and the antenna structure information of the mobile device, configuration prediction antenna, comprising:
    The mobile device determines that having the antenna of the channel SNRs and relativity measurement is the prediction antenna；
    The mobile device is using the position where the prediction antenna as the center of circle, using the estimation range as radius, determines the group where the prediction antenna；
    It is the prediction antenna in described group that the mobile device, which configures the prediction antenna,.
  11. According to the described in any item methods of claim 8-10, it is characterized in that, the mobile device is according to the mapping relations of noise when relativity measurement and estimation range, before obtaining the channel SNRs and the corresponding estimation range of relativity measurement, the method also includes:
    The mobile device receives system message, and the system message carries the mapping relations of the noise when relativity measurement and estimation range.
  12. According to the described in any item methods of claim 8-11, which is characterized in that the mobile device is according to the estimation range and the antenna structure information of the mobile device, after antenna is predicted in configuration, the method also includes:
    The mobile device sends the configuration information of the prediction antenna to the base station；
    The mobile device receives the configure-ack message of the prediction antenna of the base station feedback.
  13. A kind of prediction antenna reconfiguration device, which is characterized in that described device includes obtaining module, processing module and sending module, wherein the processing module includes first processing units and the second processing unit；
    The acquisition module, for obtaining the first channel SNRs and the first channel relevancy measurement, first channel SNRs and the first channel relevancy measurement are communicate the noise of used first channel between mobile device and the prediction antenna reconfiguration device when relativity measurement, the mobile device include mutiple antennas；
    The first processing units, for the mapping relations according to noise when relativity measurement and estimation range, it obtains first channel SNRs and the first channel relevancy and measures corresponding estimation range, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
    Described the second processing unit obtains the first prediction antenna configuration information for the antenna structure information according to the estimation range and the mobile device, and the first prediction antenna configuration information includes the mark of the prediction antenna；
    The sending module, for sending the first prediction antenna configuration information to the mobile device.
  14. Device according to claim 13, which is characterized in that described the second processing unit is specifically used for:
    The center of circle is in the position where antenna to use first channel, using the estimation range as radius, determines the group where the antenna using first channel；
    It determines in described group, the maximum antenna of channel SNRs is as the prediction antenna；
    Using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
  15. Device according to claim 13, which is characterized in that described the second processing unit is specifically used for:
    Determine that using the antenna of first channel be prediction antenna；
    Using the position where the prediction antenna as the center of circle, using the estimation range as radius, the group where the prediction antenna is determined；
    Using described group and the information of the prediction antenna is as the first prediction antenna configuration information, and the first prediction antenna configuration information further includes the mark for the alternative antenna that the prediction antenna is serviced.
  16. The described in any item devices of 3-15 according to claim 1, which is characterized in that described device further include: judgment module,
    The judgment module, for judging the size of first channel SNRs and preset threshold；
    If the judgment module determines that first channel SNRs are greater than or equal to the preset threshold, described the second processing unit is triggered according to the estimation range and the antenna structure information of the mobile device, obtains the first prediction antenna configuration information.
  17. Device according to claim 16, which is characterized in that if the judgment module determines that first channel SNRs are less than the preset threshold, described the second processing unit is specifically used for:
    The antenna structure information of the mobile device and second channel signal-to-noise ratio are sent to the second base station, wherein, the second channel signal-to-noise ratio communicates the signal-to-noise ratio of used second channel between the mobile device and second base station, and second base station is one or more neighbor base stations of the first base station；
    According to the second of second base station feedback the prediction antenna configuration information, the first prediction antenna configuration information is obtained, the second prediction antenna configuration information is that second base station is determined according to second channel relativity measurement, the antenna structure information of the mobile device and the second channel signal-to-noise ratio.
  18. Device according to claim 17, which is characterized in that described the second processing unit is used for according to the second of second base station feedback the prediction antenna configuration information, when obtaining the first prediction antenna configuration information, specifically:
    The second prediction antenna configuration information based on second base station feedback, according to most sparse principle, obtain the first prediction antenna configuration information, the first prediction antenna configuration information further includes the mark of the serving BS of the prediction antenna of the mobile device, and the serving BS includes the base station and second base station for being integrated with the prediction antenna reconfiguration device.
  19. The described in any item devices of 3-18 according to claim 1, it is characterized in that, first channel SNRs and the first channel relevancy measurement are to be obtained by the mobile device using pre-set prediction antenna measurement, and the pre-set prediction antenna is mobile device configuration by the mobile device default configuration or the base station by being integrated with the prediction antenna reconfiguration device.
  20. A kind of prediction antenna reconfiguration system, which is characterized in that the system comprises:
    Mobile device and such as described in any item prediction antenna reconfiguration devices of claim 13-19, the mobile device includes mutiple antennas.
  21. A kind of prediction antenna reconfiguration device, which is characterized in that described device includes obtaining module and processing module, wherein the processing module includes first processing units and the second processing unit；
    The acquisition module, for obtaining channel SNRs and relativity measurement, wherein the channel letter When relativity measurement of making an uproar communicated between the mobile device and base station used in the noise of channel when relativity measurement, the mobile device include mutiple antennas；
    The first processing units, for the mapping relations according to noise when relativity measurement and estimation range, obtain the channel SNRs and the corresponding estimation range of relativity measurement, the estimation range is the alternative antenna that carries out data transmission of the channel information based on prediction antenna estimation at a distance from the prediction antenna；
    Described the second processing unit configures the prediction antenna for the antenna structure information according to the estimation range and the mobile device.
  22. Device according to claim 21, which is characterized in that described the second processing unit is specifically used for:
    Using the position where the antenna with the channel SNRs and relativity measurement as the center of circle, using the estimation range as radius, the group where the antenna with the channel SNRs and relativity measurement is determined；
    It is the prediction antenna by the maximum antenna configuration of channel SNRs in described group.
  23. Device according to claim 21, which is characterized in that described the second processing unit is specifically used for:
    It is the prediction antenna that determining, which has the antenna of the channel SNRs and relativity measurement,；
    Using the position where the prediction antenna as the center of circle, using the estimation range as radius, the group where the prediction antenna is determined；
    Configuring the prediction antenna is the prediction antenna in described group.
  24. According to the described in any item devices of claim 21-23, which is characterized in that described device further includes the first receiving module, and for receiving system message, the system message carries the mapping relations of the noise when relativity measurement and estimation range.
  25. According to the described in any item devices of claim 21-24, which is characterized in that described device further includes sending module and the second receiving module,
    The sending module, for sending the configuration information of the prediction antenna to the base station；
    Second receiving module, the configure-ack message of the prediction antenna for receiving the base station feedback.
  26. According to the described in any item devices of claim 21-25, which is characterized in that the prediction antenna reconfiguration device is mobile device, and the mobile device includes mutiple antennas.
CN201480083530.5A 2014-12-31 2014-12-31 Method, device and system for predicting antenna reconfiguration Expired - Fee Related CN107078767B (en)

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