CN104243055A - Method and device for correcting multi-antenna-channel and base station system - Google Patents
Method and device for correcting multi-antenna-channel and base station system Download PDFInfo
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- CN104243055A CN104243055A CN201310247586.7A CN201310247586A CN104243055A CN 104243055 A CN104243055 A CN 104243055A CN 201310247586 A CN201310247586 A CN 201310247586A CN 104243055 A CN104243055 A CN 104243055A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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Abstract
The embodiment of the invention provides a method and device for correcting a multi-antenna-channel and a base station system. The method comprises the steps that whether a correction channel in a radio frequency unit of the base station system with multiple antennas is effective is detected; if the correction channel in the radio frequency unit is effective, the correction channel is used for correcting channels of all antennas in the base station system with the multiple antennas, and if the correction channel in the radio frequency unit is disabled, any one antenna in the base station system with the multiple antennas is used as reference to correct channels of other antennas. The method solves the problems that in the prior art, the correction technology adopting a special correction channel is only suitable for new radio frequency units, radio frequency units without correction channels need hardware updating or transforming, and investment is wasted.
Description
Technical field
The embodiment of the present invention relates to communication technical field, particularly relates to method, device and base station system that a kind of multi-antenna channel corrects.
Background technology
Now widely used multi-aerial radio communication system, as Long Term Evolution (LongTerm Evolution, hereinafter referred to as LTE), worldwide interoperability for microwave Access Network (World wide Interoperability for Microwave Access, hereinafter referred to as WiMax) etc., require the channel characteristics reciprocity and the consistency that ensure uplink and downlink in propagation ducts corresponding to all business antennas, to reach the performance of good receiving and transmitting signal; Particularly by adopting channel correcting technology, namely the characteristic value of each antenna up-downgoing channel is measured by sending and receive particular sequence, then uplink and downlink channel penalty coefficient corresponding to each channel is calculated by certain algorithm, and channel compensation coefficient is applied to transmit and Received signal strength respectively, consistency and the reciprocity of channel is guaranteed with this.
In prior art, the radio frequency unit (Radio Unit, hereinafter referred to as RU) in the base station system of multiple antennas is integrated with special correction channel the reciprocity between multiple antennas and consistency are corrected.
But prior art is only applicable to newer RU, and needs to carry out hardware update or transformation to the RU not with correction channel, causes investment waste.
Summary of the invention
Method, device and base station system that the embodiment of the present invention provides a kind of multi-antenna channel to correct, solve in prior art and adopt the channel correcting technology of special correction channel to be only applicable to newer RU, need to carry out hardware update or transformation for the RU not with correction channel, cause the problem of investment waste.
Embodiment of the present invention first aspect provides a kind of method that multi-antenna channel corrects, and comprising:
Whether the correction channel detected in the base station system of multiple antennas in radio frequency unit is effective;
If the correction channel in described radio frequency unit is effective, then described correction channel is adopted to correct the channel of each antenna in the base station system of described multiple antennas; Or,
If correction channel in described radio frequency unit lost efficacy, then with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected.
In conjunction with first aspect, in the first possible execution mode of first aspect, whether the correction channel in the base station system of described detection multiple antennas in radio frequency unit is effective, comprising:
Whether the characteristic value of the signal that the signal sent according to described correction channel receives at described antenna detects described correction channel effective; Or,
Whether the characteristic value of the signal that the signal sent according to described antenna receives in described correction channel detects described correction channel effective.
In conjunction with the first possible execution mode of first aspect, in the execution mode that the second of first aspect is possible, whether the characteristic value of the signal that the described signal sent according to described correction channel receives at described antenna detects described correction channel effective, comprising:
If the characteristic value of the signal that the signal that described correction channel sends receives at described antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna.
In conjunction with the first possible execution mode of first aspect, in the third possible execution mode of first aspect, whether the characteristic value of the signal that the described signal sent according to described antenna receives in described correction channel detects described correction channel effective, comprising:
If the characteristic value of the signal that the signal that described antenna sends receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel.
In conjunction with first aspect to any one in the third possible execution mode of first aspect, in the 4th kind of possible execution mode of first aspect, before whether the correction channel in the base station system of described detection multiple antennas in radio frequency unit is effective, described method also comprises:
Detect in described radio frequency unit and whether there is hardware signal in place, if exist, then determine to there is correction channel in described radio frequency unit.
In conjunction with first aspect to any one in the 4th kind of possible execution mode of first aspect, in the 5th kind of possible execution mode of first aspect, the described correction channel of described employing corrects the channel of each antenna in the base station system of described multiple antennas, comprising:
Between described correction channel and described antenna, transmit correction signal, according to described correction signal, the channel of each antenna in the base station system of described multiple antennas is corrected.
In conjunction with first aspect to any one in the 5th kind of possible execution mode of first aspect, in the 6th kind of possible execution mode of first aspect, described with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected, comprising:
In the base station system of described multiple antennas, transmit correction signal between any antenna and other antennas described, correct according to the channel of described correction signal to other antennas described.
Second aspect present invention provides the device that a kind of multi-antenna channel corrects, and comprising:
First detection module, for detect multiple antennas base station system in correction channel in radio frequency unit whether effective;
Processing module, if effective for the correction channel in described radio frequency unit, then adopts described correction channel to correct the channel of each antenna in the base station system of described multiple antennas; Or, if in described radio frequency unit correction channel lost efficacy, then with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected.
In conjunction with second aspect, in the first possible execution mode of second aspect, described first detection module comprises:
First detecting unit, whether the characteristic value of the signal received at described antenna for the signal that sends according to described correction channel detects described correction channel effective; Or,
Second detecting unit, whether the characteristic value of the signal received in described correction channel for the signal that sends according to described antenna detects described correction channel effective.
In conjunction with the first possible execution mode of second aspect, in the execution mode that the second of second aspect is possible, described first detecting unit, if the characteristic value of signal that the signal sent specifically for described correction channel receives at described antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna.
In conjunction with the first possible execution mode of second aspect, in the third possible execution mode of second aspect, described second detecting unit, if the characteristic value of signal that the signal sent specifically for described antenna receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel.
In conjunction with second aspect to any one in the third possible execution mode of second aspect, in the 4th kind of possible execution mode of second aspect, described device also comprises:
Whether the second detection module, before effective for the correction channel in radio frequency unit in the base station system of described detection multiple antennas, detect in described radio frequency unit and whether there is hardware signal in place, if exist, then determine to there is correction channel in described radio frequency unit.
In conjunction with second aspect to any one in the 4th kind of possible execution mode of second aspect, in the 5th kind of possible execution mode of second aspect, described processing module, specifically for transmitting correction signal between described correction channel and described antenna, according to described correction signal, the channel of each antenna in the base station system of described multiple antennas is corrected.
In conjunction with second aspect to any one in the 5th kind of possible execution mode of second aspect, in the 6th kind of possible execution mode of second aspect, described processing module, also transmit correction signal for any antenna in the base station system of described multiple antennas and between other antennas described, correct according to the channel of described correction signal to other antennas described.
Third aspect present invention provides a kind of base station system, comprises Base Band Unit, the device that radio frequency unit and the multi-antenna channel as described in second aspect to any one in the 6th kind of possible execution mode of second aspect correct.
In conjunction with the third aspect, in the first possible execution mode of the third aspect, the device that described multi-antenna channel corrects is arranged on described Base Band Unit, or is arranged on described radio frequency unit.
The method that the embodiment of the present invention provides, whether effective by the correction channel in radio frequency unit in the base station system of detection multiple antennas, in adopting correction channel to the base station system of described multiple antennas under the effective prerequisite of correction channel, the channel of each antenna corrects, or, under the prerequisite that correction channel lost efficacy, with any antenna in the base station system of multiple antennas for benchmark, the channel of other antennas is corrected, namely realized the switching of two kinds of channel correcting technology by the above-mentioned mechanism whether effectively detected correction channel, significantly reduce cost of investment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the embodiment of the method one that multi-antenna channel provided by the invention corrects;
Fig. 2 is the schematic flow sheet of the embodiment of the method two that multi-antenna channel provided by the invention corrects;
Fig. 3 is the structural representation of the device embodiment one that multi-antenna channel provided by the invention corrects;
Fig. 4 is the structural representation of the device embodiment two that multi-antenna channel provided by the invention corrects;
Fig. 5 is the structural representation of the device embodiment three that multi-antenna channel provided by the invention corrects;
Fig. 6 is the structural representation of base station system embodiment one provided by the invention;
Fig. 7 is the structural representation of base station system embodiment two provided by the invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The techniques described herein may be used in various communication system, such as current 2G, 3G communication system and next generation communication system, such as global system for mobile communications (GSM, Global System for Mobile communications), code division multiple access (CDMA, Code Division Multiple Access) system, time division multiple access (TDMA, Time Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access Wireless), frequency division multiple access (FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS (GPRS, General Packet Radio Service) system, Long Term Evolution (LTE, Long Term Evolution) system, WLAN (Wireless Local Area Networks, hereinafter referred to as WLAN), and other these type of communication systems.
The base station (such as, access point) related in the application can to refer in Access Network the equipment by one or more sector and wireless terminal communications on aloft interface.Base station can be used for the air frame received and IP to divide into groups mutually to change, and as the router between wireless terminal and the remainder of Access Network, wherein the remainder of Access Network can comprise Internet protocol (IP) network.Base station also tunable to the attribute management of air interface.Such as, base station can be the base station (BTS in GSM or CDMA, Base Transceiver Station), also can be the base station (NodeB) in WCDMA, can also be evolved base station (NodeB or eNB or e-NodeB in LTE, evolutional Node B), the application does not limit.
Fig. 1 is the schematic flow sheet of the embodiment of the method one that multi-antenna channel provided by the invention corrects, and the executive agent of the method that the present embodiment relates to is base station, and as shown in Figure 1, the method comprises:
S101: whether the correction channel detected in the base station system of multiple antennas in radio frequency unit is effective.
Concrete, base station is divided into Base Band Unit and radio frequency unit, and all available corresponding hardware circuit of Base Band Unit and radio frequency unit realizes; Baseband portion produces particular sequence for correcting, converts correction signal to via radio frequency unit, the reciprocity of channel and consistency when base station adopts this correction signal and corresponding channel correcting technology to guarantee receiving and transmitting signal between multiple antennas.
In embodiments of the present invention, channel correcting process is initiated in base station, and judges that whether the correction channel of the radio frequency unit in the base station system of above-mentioned multiple antennas is effective.
S102: if the correction channel in radio frequency unit is effective, then adopt above-mentioned correction channel to correct the channel of each antenna in the base station system of multiple antennas; Or, if correction channel in radio frequency unit lost efficacy, then with any antenna in the base station system of above-mentioned multiple antennas for benchmark, the channel of other antennas is corrected.
Concrete, be divided into two kinds of implementations:
The first: is if the correction channel in above-mentioned radio frequency unit is effective, then baseband portion control base station adopts the channel of alignment technique to each antenna in the base station system of multiple antennas with special correcting circuit channel to correct, namely on the radio frequency unit of base station, special correction channel hardware is integrated with, when carrying out channel correcting, the baseband portion of base station produces specific correction sequence, correction signal is converted to via radio frequency unit, sent by the correction channel on radio frequency unit or antenna, and this antenna can be business antenna; Corresponding, business antenna on radio frequency unit or correction channel receive the correction signal of launching, and output it to baseband portion, baseband portion calculates the penalty coefficient of up-downgoing channel according to the correction signal of transmission and the correction signal of reception, applied to transmit or Received signal strength, and then guaranteed consistency and the reciprocity of channel.
The second: if the correction channel in above-mentioned radio frequency unit lost efficacy, controlling base station at Base Band Unit adopts the channel of alignment technique to each antenna in the base station system of multiple antennas without special correcting circuit passage to correct, it should be noted that, here the alignment technique without special correction channel is applicable to old radio frequency unit, does not namely have the radio frequency unit of integrated special correction channel hardware; Should be specially without trimming process of special correcting circuit passage: select on radio frequency unit that a business antenna is as benchmark, specific correction signal is received and dispatched between other business antenna and this reference antenna, to complete the channel correcting to other antennas.
The method that the embodiment of the present invention provides, whether effective by the correction channel in radio frequency unit in the base station system of detection multiple antennas, in adopting correction channel to the base station system of described multiple antennas under the effective prerequisite of correction channel, the channel of each antenna corrects, or, under the prerequisite that correction channel lost efficacy, with any antenna in the base station system of multiple antennas for benchmark, the channel of other antennas is corrected, namely realized the switching of two kinds of channel correcting technology by the above-mentioned mechanism whether effectively detected correction channel, significantly reduce cost of investment.
On basis embodiment illustrated in fig. 1, further, above-mentioned S101 comprises: whether the characteristic value of the signal that the signal sent according to correction channel receives at above-mentioned antenna detects correction channel effective; Or whether the characteristic value of the signal that the signal sent according to above-mentioned antenna receives in correction channel detects described correction channel effective.
Concrete, the transmitting-receiving of the correction signal that the present embodiment relates to mainly is divided into two kinds of implementations, the first: correction signal sends via correction channel, and is received by the business antenna on radio frequency unit; The second: correction signal sends via the business antenna on radio frequency unit, and is received by correction channel; But no matter the transmitting-receiving of correction signal is any mode, whether effectively all can go to detect correction channel by the characteristic value of the correction signal received.
Further, on the basis of above-described embodiment, whether the characteristic value of the signal that the above-mentioned signal sent according to correction channel receives at antenna detects described correction channel effective, comprising: if the characteristic value of signal that the signal of correction channel transmission receives at above-mentioned antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that this correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for above-mentioned correction channel receives at above-mentioned antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for above-mentioned correction channel receives at above-mentioned antenna.
Concrete, the present embodiment for be that correction signal is sent by correction channel, and situation about being received by the business antenna on radio frequency unit, whether base station by detecting the characteristic value of the correction signal that the business antenna of radio frequency unit receives at pre-set interval [Q
pas, b, Q
pass, u] in determine this correction channel whether effectively (general correction signal send with the transmitting procedure received in because radio condition etc. affect can change), wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for correction channel receives at business antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for correction channel receives at business antenna; If the characteristic value of the correction signal that business antenna receives is in this pre-set interval, then this correction channel is effective, then baseband portion control base station adopts the alignment technique with special correcting circuit passage to correct; If the characteristic value of the correction signal that business antenna receives is not in this pre-set interval, then this correction channel lost efficacy, then baseband portion control base station adopts the alignment technique without special correction channel to correct; Be that example illustrate with the Signal to Interference plus Noise Ratio of correction signal (Signal to Interference plus Noise Ratio, hereinafter referred to as SINR) as the characteristic value of correction signal at this:
Base station according to formula according to
the SINR of the correction signal that the antenna calculating radio frequency unit receives, and determine that whether correction channel is effective according to this SINR, wherein,
this R
nfor the sequential value of the signal that above-mentioned antenna receives, N is the sequence length of the correction signal that above-mentioned antenna receives,
for the conjugate of sequential value of the signal that correction channel sends, if the value of the SINR of signal that the signal that sends of correction channel receives at antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that correction channel is effective, if the value of the SINR of signal that the signal that sends of correction channel receives at antenna is not at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that correction channel lost efficacy, wherein, Q
pas, bthe lower limit of the SINR of the signal that the signal sent for correction channel receives at antenna, Q
pass, uthe higher limit of the SINR of the signal that the signal sent for correction channel receives at antenna.
Further, on the basis of above-described embodiment, whether the characteristic value of the signal that the above-mentioned signal sent according to antenna receives in correction channel detects correction channel effective, comprising: if the characteristic value of signal that the signal of above-mentioned antenna transmission receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for above-mentioned antenna receives in correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for above-mentioned antenna receives in correction channel.
Concrete, the present embodiment for be that correction signal is sent by the business antenna on radio frequency unit, and situation about being received by correction channel, base station by the characteristic value of correction signal that detects correction channel and receive whether at pre-set interval [Q
pas, b, Q
pass, u] in determine this correction channel whether effectively (general correction signal send with the transmitting procedure received in because radio condition etc. affect can change), wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for the antenna on radio frequency unit receives in correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for the antenna on radio frequency unit receives in correction channel; If the characteristic value of the correction signal that correction channel receives is in this pre-set interval, then this correction channel is effective, then baseband portion control base station adopts the alignment technique with special correcting circuit passage to correct; If correct the characteristic value of the correction signal received not in this pre-set interval, then this correction channel lost efficacy, then baseband portion control base station adopts the alignment technique without special correction channel to correct; Illustrate for the SINR of correction signal as the characteristic value of correction signal at this:
Base station according to formula according to
the SINR of the correction signal of calculation correction channel reception, and determine that whether correction channel is effective according to this SINR, wherein,
this R
nfor the sequential value of the signal that above-mentioned correction channel receives, N is the sequence length of the correction signal that correction channel receives,
for the conjugate of sequential value of the signal that the antenna on above-mentioned radio frequency unit sends, if the value of the SINR of signal that the signal that sends of the antenna on radio frequency unit receives in correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that correction channel is effective, if the value of the SINR of signal that the signal that sends of the antenna on radio frequency unit receives in correction channel is not at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that correction channel lost efficacy, wherein, Q
pas, bthe lower limit of the SINR of the signal that the signal sent for the antenna on radio frequency unit receives in correction channel, Q
pass, uthe higher limit of the SINR of the signal that the signal sent for the antenna on radio frequency unit receives in correction channel.
The method that the embodiment of the present invention provides, whether effective by the correction channel in radio frequency unit in the base station system of detection multiple antennas, in adopting correction channel to the base station system of described multiple antennas under the effective prerequisite of correction channel, the channel of each antenna corrects, or, under the prerequisite that correction channel lost efficacy, with any antenna in the base station system of multiple antennas for benchmark, the channel of other antennas is corrected, namely the switching of two kinds of channel correcting technology is realized by the above-mentioned mechanism whether effectively detected correction channel, maximum compatibility is with the alignment technique of special correcting circuit passage and the alignment technique not with special correcting circuit passage, particularly at old radio frequency unit, to new radio frequency unit, (old radio frequency unit is not with correction channel, new radio frequency unit band correction channel) correction channel of period of transition or radio frequency unit is when damaging, automatically the alignment technique that can use band special correcting circuit passage can be identified whether, and in the disabled situation of special correcting circuit passage, be switched to the alignment technique without special correcting circuit passage, ensure that the availability of channel correcting, significantly reduce cost of investment.
Fig. 2 is the schematic flow sheet of the embodiment of the method two that multi-antenna channel provided by the invention corrects, the method that the present embodiment relates to detected whether there is correction channel before whether detection correction channel in base station is effective, and adopt different channel correcting technology according to testing result, on above-mentioned basis embodiment illustrated in fig. 1, further, before above-mentioned S101, also comprise:
S201: detect in radio frequency unit whether there is hardware signal in place, if exist, then determines to there is correction channel in this radio frequency unit.
Concrete, base station detects in radio frequency unit whether there is correction channel, the mode detected is by detecting in radio frequency unit whether there is hardware signal in place, can be integrated with special correction channel hardware, produce hardware signal in place because general in the radio frequency unit with special correcting circuit passage; If base station detects hardware signal in place, then determine to there is correction channel in this radio frequency unit, and to the process whether the detection correction channel that this correction channel performs above-described embodiment lost efficacy, do not repeat them here; If base station does not detect hardware signal in place, then determine to there is not correction channel in this radio frequency unit, then base station adopts the alignment technique without special correcting circuit passage to correct.
More specifically, base station detects in radio frequency unit whether there is correction channel, can be that baseband portion in base station goes to detect, also can be that radio frequency unit self detects whether there is correction channel, and testing result is reported baseband portion, can also be that radio frequency unit self detects whether there is correction channel, be gone to inquire about this testing result by baseband portion self, and then make the corresponding operation of execution according to this testing result.
Further, on the basis of above-described embodiment, above-mentioned employing correction channel corrects the channel of each antenna in the base station system of multiple antennas, comprise: between correction channel and antenna, transmit correction signal, according to correction signal, the channel of each antenna in the base station system of multiple antennas is corrected.
Concrete, when carrying out channel correcting, the baseband portion of base station produces specific correction sequence, converts correction signal to via radio frequency unit, is sent by the correction channel on radio frequency unit or antenna, and this antenna can be business antenna; Corresponding, business antenna on radio frequency unit or correction channel receive the correction signal of launching, and output it to baseband portion, baseband portion calculates the penalty coefficient of up-downgoing channel according to the correction signal of transmission and the correction signal of reception, applied to transmit or Received signal strength, and then guaranteed consistency and the reciprocity of channel.
Further, on the basis of above-described embodiment, above-mentioned with any antenna in the base station system of multiple antennas for benchmark, the channel of other antennas is corrected, comprise: in the base station system of multiple antennas, transmit correction signal between any antenna and other antennas, correct according to the channel of correction signal to other antennas.
Concrete, when carrying out channel correcting, the baseband portion of base station produces specific correction sequence, correction signal is converted to via radio frequency unit, and send via the some business antennas on radio frequency unit, this business antenna can see a reference antenna as, and this correction signal receives via other business antennas on radio frequency unit, and outputs it to baseband portion; Or can also be that this correction signal sends via other business antennas on radio frequency unit, and be received by another business antenna as benchmark, and output it to baseband portion; Afterwards, calculated the penalty coefficient of up-downgoing channel by baseband portion according to the correction signal of transmission and the correction signal of reception, applied to transmit or Received signal strength, and then guarantee consistency and the reciprocity of channel.
The method that the embodiment of the present invention provides, whether effective by the correction channel in radio frequency unit in the base station system of detection multiple antennas, in adopting correction channel to the base station system of described multiple antennas under the effective prerequisite of correction channel, the channel of each antenna corrects, or, under the prerequisite that correction channel lost efficacy, with any antenna in the base station system of multiple antennas for benchmark, the channel of other antennas is corrected, namely the switching of two kinds of channel correcting technology is realized by the above-mentioned mechanism whether effectively detected correction channel, maximum compatibility is with the alignment technique of special correcting circuit passage and the alignment technique not with special correcting circuit passage, particularly at old radio frequency unit, to new radio frequency unit, (old radio frequency unit is not with correction channel, new radio frequency unit band correction channel) correction channel of period of transition or radio frequency unit is when damaging, automatically the alignment technique that can use band special correcting circuit passage can be identified whether, and in the disabled situation of special correcting circuit passage, be switched to the alignment technique without special correcting circuit passage, ensure that the availability of channel correcting, significantly reduce cost of investment.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Fig. 3 is the structural representation of device embodiment one that multi-antenna channel provided by the invention corrects, and as shown in Figure 3, this device comprises: first detection module 30, for detect multiple antennas base station system in correction channel in radio frequency unit whether effective; Processing module 31, if effective for the correction channel in described radio frequency unit, then adopts described correction channel to correct the channel of each antenna in the base station system of described multiple antennas; Or, if in described radio frequency unit correction channel lost efficacy, then with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected.
The device that the multi-antenna channel of the present embodiment corrects can perform the embodiment of the method that above-mentioned multi-antenna channel corrects, and realizes principle and technique effect is similar, does not repeat them here.
Fig. 4 is the structural representation of base station embodiment two provided by the invention, on basis embodiment illustrated in fig. 3, described first detection module 30 comprises: the first detecting unit 301, and whether the characteristic value of the signal received at described antenna for the signal that sends according to described correction channel detects described correction channel effective; Or, the second detecting unit 302, whether the characteristic value of the signal received in described correction channel for the signal that sends according to described antenna detects described correction channel effective; And described first detecting unit 301, if the characteristic value of signal that the signal sent specifically for described correction channel receives at described antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna; Described second detecting unit 302, if the characteristic value of signal that the signal sent specifically for described antenna receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel.
The device that the multi-antenna channel of the present embodiment corrects can perform the embodiment of the method that above-mentioned multi-antenna channel corrects, and realizes principle and technique effect is similar, does not repeat them here.
Fig. 5 is the structural representation of the device embodiment three that multi-antenna channel provided by the invention corrects, on above-mentioned basis embodiment illustrated in fig. 4, this device also comprises: the second detection module 32, before whether effective for the correction channel in radio frequency unit in the base station system of described detection multiple antennas, detect in described radio frequency unit and whether there is hardware signal in place, if exist, then determine to there is correction channel in described radio frequency unit; And described processing module 31, specifically for transmitting correction signal between described correction channel and described antenna, corrects the channel of each antenna in the base station system of described multiple antennas according to described correction signal; Also transmit correction signal for any antenna in the base station system of described multiple antennas and between other antennas described, correct according to the channel of described correction signal to other antennas described.
The device that the multi-antenna channel of the present embodiment corrects can perform the embodiment of the method that above-mentioned multi-antenna channel corrects, and realizes principle and technique effect is similar, does not repeat them here.
Fig. 6 is the structural representation of base station system embodiment one provided by the invention, Fig. 7 is the structural representation of base station system embodiment two provided by the invention, with reference to shown in Fig. 6 and Fig. 7, this base station system comprises Base Band Unit 60, the device 62 that radio frequency unit 61 and the multi-antenna channel as described in above-mentioned Fig. 3, Fig. 4, Fig. 5 any embodiment correct.
The base station system of the present embodiment can perform the embodiment of the method that above-mentioned multi-antenna channel corrects, and realizes principle and technique effect is similar, does not repeat them here.
Further, with reference to Fig. 6, the device that this multi-antenna channel corrects can be arranged on above-mentioned Base Band Unit 60; With reference to Fig. 7, this multi-antenna channel device can also be arranged on above-mentioned radio frequency unit 61.
The multi-antenna channel means for correcting that it should be noted that in above-described embodiment is arranged on Base Band Unit 60 and judges the whether effective utilized [Q of correction channel
pas, b, Q
pass, u] value and this multi-antenna channel means for correcting be arranged on radio frequency unit 61 and judge the whether effective utilized [Q of correction channel
pas, b, Q
pass, u] value, can be identical, also can be different, the present invention does not limit this.
The base station system of the present embodiment can perform the embodiment of the method that above-mentioned multi-antenna channel corrects, and realizes principle and technique effect is similar, does not repeat them here.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a method for multi-antenna channel correction, is characterized in that, comprising:
Whether the correction channel detected in the base station system of multiple antennas in radio frequency unit is effective;
If the correction channel in described radio frequency unit is effective, then described correction channel is adopted to correct the channel of each antenna in the base station system of described multiple antennas; Or,
If correction channel in described radio frequency unit lost efficacy, then with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected.
2. method according to claim 1, is characterized in that, whether the correction channel in the base station system of described detection multiple antennas in radio frequency unit is effective, comprising:
Whether the characteristic value of the signal that the signal sent according to described correction channel receives at described antenna detects described correction channel effective; Or,
Whether the characteristic value of the signal that the signal sent according to described antenna receives in described correction channel detects described correction channel effective.
3. method according to claim 2, is characterized in that, whether the characteristic value of the signal that the described signal sent according to described correction channel receives at described antenna detects described correction channel effective, comprising:
If the characteristic value of the signal that the signal that described correction channel sends receives at described antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna.
4. method according to claim 2, is characterized in that, whether the characteristic value of the signal that the described signal sent according to described antenna receives in described correction channel detects described correction channel effective, comprising:
If the characteristic value of the signal that the signal that described antenna sends receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel.
5. the method according to any one of claim 1-4, is characterized in that, before whether the correction channel in the base station system of described detection multiple antennas in radio frequency unit is effective, also comprises:
Detect in described radio frequency unit and whether there is hardware signal in place, if exist, then determine to there is correction channel in described radio frequency unit.
6. the method according to any one of claim 1-5, is characterized in that, the described correction channel of described employing corrects the channel of each antenna in the base station system of described multiple antennas, comprising:
Between described correction channel and described antenna, transmit correction signal, according to described correction signal, the channel of each antenna in the base station system of described multiple antennas is corrected.
7. the method according to any one of claim 1-6, is characterized in that, described with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected, comprising:
In the base station system of described multiple antennas, transmit correction signal between any antenna and other antennas described, correct according to the channel of described correction signal to other antennas described.
8. a device for multi-antenna channel correction, is characterized in that, comprising:
First detection module, for detect multiple antennas base station system in correction channel in radio frequency unit whether effective;
Processing module, if effective for the correction channel in described radio frequency unit, then adopts described correction channel to correct the channel of each antenna in the base station system of described multiple antennas; Or, if in described radio frequency unit correction channel lost efficacy, then with any antenna in the base station system of described multiple antennas for benchmark, the channel of other antennas is corrected.
9. device according to claim 8, is characterized in that, described first detection module comprises:
First detecting unit, whether the characteristic value of the signal received at described antenna for the signal that sends according to described correction channel detects described correction channel effective; Or,
Second detecting unit, whether the characteristic value of the signal received in described correction channel for the signal that sends according to described antenna detects described correction channel effective.
10. device according to claim 9, is characterized in that, described first detecting unit, if the characteristic value of signal that the signal sent specifically for described correction channel receives at described antenna is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described correction channel receives at described antenna.
11. devices according to claim 9, is characterized in that, described second detecting unit, if the characteristic value of signal that the signal sent specifically for described antenna receives in described correction channel is at pre-set interval [Q
pas, b, Q
pass, u] in, then determine that described correction channel is effective, wherein, Q
pas, bthe lower limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel, Q
pass, uthe higher limit of the characteristic value of the signal that the signal sent for described antenna receives in described correction channel.
12. devices according to Claim 8 described in-11 any one, it is characterized in that, described device also comprises:
Whether the second detection module, before effective for the correction channel in radio frequency unit in the base station system of described detection multiple antennas, detect in described radio frequency unit and whether there is hardware signal in place, if exist, then determine to there is correction channel in described radio frequency unit.
13. devices according to Claim 8 described in-12 any one, it is characterized in that, described processing module, specifically for transmitting correction signal between described correction channel and described antenna, corrects the channel of each antenna in the base station system of described multiple antennas according to described correction signal.
14. devices according to Claim 8 described in-13 any one, it is characterized in that, described processing module, also transmits correction signal for any antenna in the base station system of described multiple antennas and between other antennas described, corrects according to the channel of described correction signal to other antennas described.
15. 1 kinds of base station systems, is characterized in that, comprise Base Band Unit, the device that radio frequency unit and the multi-antenna channel as described in any one of claim 8-14 correct.
16. base station systems according to claim 15, is characterized in that, the device that described multi-antenna channel corrects is arranged on described Base Band Unit, or is arranged on described radio frequency unit.
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| CN201310247586.7A CN104243055B (en) | 2013-06-20 | 2013-06-20 | The method of multi-antenna channel correction, device and base station system |
| PCT/CN2014/080415 WO2014202025A1 (en) | 2013-06-20 | 2014-06-20 | Method and device for correcting multi-antenna channel, and base station system |
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| CN201310247586.7A CN104243055B (en) | 2013-06-20 | 2013-06-20 | The method of multi-antenna channel correction, device and base station system |
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| WO2020156202A1 (en) * | 2019-01-30 | 2020-08-06 | 华为技术有限公司 | Radio-frequency channel correcting method and apparatus, antenna, and base station |
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| EP3461022B1 (en) | 2016-06-17 | 2020-09-23 | Huawei Technologies Co., Ltd. | Channel correction method and device and communication system |
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Also Published As
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| CN104243055B (en) | 2016-06-29 |
| WO2014202025A1 (en) | 2014-12-24 |
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