CN103874076A - Base station - Google Patents
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- CN103874076A CN103874076A CN201410116678.6A CN201410116678A CN103874076A CN 103874076 A CN103874076 A CN 103874076A CN 201410116678 A CN201410116678 A CN 201410116678A CN 103874076 A CN103874076 A CN 103874076A
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Abstract
The embodiment of the invention provides a base station. The base station comprises an antenna unit and a radio frequency unit, wherein a port corresponding to a receiving channel, in a work state, of the radio frequency unit and a port corresponding to an emitting channel, in a work state, of the radio frequency unit are connected with ports corresponding to different dual-polarized vibrators or different signal-polarized vibrators of the antenna unit respectively, and the different dual-polarized vibrators or the different signal-polarized vibrators of the antenna unit are mutually isolated. Either in an identical frequency band or in different frequency bands, the base station can resolve the problem of interference in uplink signals from intermodulation signals generated by downlink signals.
Description
Technical field
The present invention relates to mechanics of communication, relate in particular to a kind of base station.
Background technology
Along with the anxiety of operator's construction fund, network is shared has become a kind of networking mode generally using.Network is shared and is conventionally divided into the shared wireless access network of multi-operator (Multioperator Radio Access Network is called for short MORAN) and multi-operator shared network (Multioperator core network is called for short MOCN).MOCN is the shared frequency spectrum of many each operation businessmans and radio reception device, MORAN Shi Duoge operator respectively has oneself independently frequency spectrum, only shared radio reception device, for example, respectively there is the frequency spectrum of oneself in three operators, but share a radio-frequency module and antenna, concerning each operator, originally a set of base station equipment will be built in every operation commercial city like this, and present three operators only use a set of base station equipment, thereby, both can save 2/3 networking cost, can guarantee again the frequency spectrum competitiveness of oneself simultaneously.Radio-frequency module can be Remote Radio Unit (Remote Radio Unit is called for short RRU), or macro base station radio frequency unit (Radio Frequency Unit is called for short RFU)
DD800M frequency range is 30M bandwidth altogether, and establishing 10M is a carrier wave, is divided into continuously 3 carrier wave: C1, C2, C3 by frequency range, and C1 and C2 are adjacent; C2 and C3 are adjacent.3 operators respectively account for the bandwidth of 10M, and for saving networking cost, 3 operators adopt tripartite MORAN scheme, require a radio-frequency module to support 3 carrier waves, carrier wave of Mei Jia operator.But due to the particularity of DD800M frequency range, during this demand realizes, run into the problem that the inter-modulated signal of descending generation is disturbed upward signal.The inter-modulated signal producing with intercarrier in descending 3 carrier waves of DD800M frequency range, a part has dropped on up frequency range interval, and the upward signal of meeting severe jamming base station causes radio-frequency module receiving sensitivity to reduce.Because the transmitting power of downstream signal is very large, upward signal a little less than, if to have dropped on band downlink interval less to descending interference, negligible for the inter-modulated signal that upward signal produces.Not only DD800M, other frequency ranges that mobile communication is used also have the problem that the inter-modulated signal of descending generation is disturbed upward signal.
Double RF module scheme can solve above-mentioned Intermodulation Interference problem.Between two adjacent carriers of C1+C2 of DD800M frequency range or between two adjacent carriers of C2+C3, the Intermodulation Interference of descending generation can not drop on uplink interval.Like this, configurable 2 RRU/RFU in each sector and 2 dual polarized antennas, on a radio-frequency module, configure two adjacent carriers of C1+C2 or two adjacent carriers of C2+C3, on another radio-frequency module, configure two adjacent carriers of C2+C3 or two adjacent carriers of C1+C2, two radio-frequency modules are combined and can be supported 3 carrier waves, realize 3 side MORAN functions.But each sector need to be used 2 radio-frequency modules, has increased the number of radio-frequency module, thereby has increased the cost of equipment and engineering, and MORAN object is to be exactly in order to share radio-frequency module.Therefore, MORAN scheme meaning reduces.
Summary of the invention
The embodiment of the present invention provides a kind of base station, the interference problem of inter-modulated signal to upward signal producing for solving downstream signal.
The invention provides a kind of base station, comprise antenna element and radio frequency unit;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connect from different dual polarization vibrators in described antenna element or the corresponding port of different single polarization oscillator respectively, dual polarization vibrator or different single polarization oscillators different in described antenna element are isolated mutually.
In the possible real ancient flag with yak's tail mode of the first, described antenna element comprises N dual polarization vibrator, wherein N dual polarization comprises N/2 the first dual polarization vibrator and N/2 the second dual polarization vibrator, and every 1 dual polarization vibrator is to there being 2 ports on described antenna element, and described N is even number;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
Any 2 transmitting-receiving ports of described radio frequency unit are connected to respectively a corresponding port of dual polarization vibrator in described antenna element;
Receive path corresponding to 2 transmitting-receiving ports in the radio frequency unit connecting with corresponding 2 ports of the first dual polarization vibrator described in described antenna element be in closed condition, and the transmission channel that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the first dual polarization vibrator described in described antenna element connect are corresponding is in running order;
Transmission channel corresponding in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect 2 transmitting-receiving ports be in closed condition, and the receive path that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect are corresponding is in running order.
In conjunction with first aspect, in the possible execution mode of the second, described radio frequency unit comprises 2 receiving ports and 2 transmitting-receiving ports, and described antenna element comprises 2 dual polarization vibrators, wherein, every 1 dual polarization vibrator on described antenna element to there being 2 ports;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
2 transmitting-receiving ports of described radio frequency unit are connected to respectively a corresponding port of dual polarization vibrator of described antenna element, the receive path of 2 transmitting-receiving ports of described radio frequency unit is in closed condition, the transmission channel of 2 transmitting-receiving ports of described radio frequency unit is in running order, and 2 receiving ports of described radio frequency unit are connected to respectively the corresponding port of another dual polarization vibrator of described antenna element.
In conjunction with first aspect, in the third possible execution mode, described radio frequency unit comprises 2 transmitting-receiving ports, and described antenna element comprises 2 single polarization oscillators, and every 1 single polarization oscillator is a corresponding port on described antenna element;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different single polarization oscillators in antenna element respectively, is specially:
2 transmitting-receiving ports of described radio frequency unit are connected to respectively 2 ports of described antenna element; Wherein, the receive path of any 1 transmitting-receiving port of described radio frequency unit is in closed condition and transmission channel is in running order, and the transmission channel of other 1 transmitting-receiving port of described radio frequency unit is in closed condition and receive path is in running order.
In conjunction with first aspect, in the 4th kind of possible execution mode, described radio frequency unit comprises 2 radio frequency subelements, each radio frequency subelement comprises 3 transmitting-receiving ports and 3 receiving ports, described antenna element comprises 6 dual polarization vibrators, every 1 dual polarization vibrator on described antenna element to there being 2 ports; Wherein, described 6 dual polarization vibrators comprise 3 the first dual polarization vibrators and 3 the second dual polarization vibrators;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
12 ports of described antenna element are connected to respectively 12 ports of described radio frequency unit, wherein, 1 port described in each in described antenna element in the first dual polarization vibrator is connected to the transmitting-receiving port of 1 radio frequency subelement, and another 1 port is connected to the transmitting-receiving port of another 1 radio frequency subelement; 1 port described in each in described antenna element in the second dual polarization vibrator is connected to the receiving port of 1 radio frequency subelement, and another 1 port is connected to the receiving port of another 1 radio frequency subelement;
The receive path of all transmitting-receiving ports of each described radio frequency subelement is in closed condition and transmission channel is in running order.
In conjunction with first aspect, in the 5th kind of possible execution mode, also comprise mixer, described radio frequency unit comprises the first radio frequency subelement and the second radio frequency subelement; Described antenna element comprises 2 dual polarization vibrators, wherein, 1 dual polarization vibrator on described antenna element to there being 2 ports;
The first radio frequency unit comprises 2 transmitting-receiving ports, and the second frequent unit comprises 4 transmitting-receiving ports, shares the dual polarized antenna of 2 ports.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
2 transmitting-receiving ports of described the second radio frequency subelement are connected to respectively corresponding 2 ports of dual polarization vibrator in described antenna element, and other 2 transmitting-receiving ports of described the second radio frequency subelement are connected to respectively 2 ports of described mixer; 2 transmitting-receiving ports of described the first radio frequency subelement are connected to respectively other 2 ports of described mixer; 2 ports of other of described mixer are connected to corresponding 2 ports of another dual polarization vibrator in described antenna element;
The receive path that is connected to 2 of mixer transmitting-receiving ports in described the second radio frequency subelement is in closed condition and transmission channel is in running order.
In technique scheme, the reception of radio frequency unit and transmitting are carried out respectively on different polarization oscillators, rather than carry out on same polarization oscillator.Due to, radio frequency unit receives signal and transmits respectively and carries out on different dual polarization vibrators or different single polarization oscillator, in antenna element, mutually to isolate be up-downgoing channel separation for different dual polarization vibrator or different single polarization oscillators, and up-downgoing is completely unaffected.Therefore, avoided the interference to received signal of inter-modulated signal that radio frequency unit transmits, i.e. the interference of the inter-modulated signal of descending carrier to upward signal.The method providing by the embodiment of the present invention can solve the interference of inter-modulated signal to upward signal that the downstream signal of same frequency range produces, and also can solve the interference to upward signal of inter-modulated signal that the downstream signal between different frequency range produces.
Accompanying drawing explanation
A kind of architecture of base station schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The another kind of architecture of base station schematic diagram that Fig. 2 A provides for the embodiment of the present invention;
Fig. 2 B substitutes architecture of base station schematic diagram being equal to of Fig. 2 A;
Another architecture of base station schematic diagram that Fig. 3 provides for the embodiment of the present invention;
Another architecture of base station schematic diagram that Fig. 4 provides for the embodiment of the present invention;
Another architecture of base station schematic diagram that Fig. 5 provides for the embodiment of the present invention;
Another architecture of base station schematic diagram that Fig. 6 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention is applicable to Long Term Evolution (Long Term Evolution, be called for short LTE), universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) and global system for mobile communications (Global System for Mobile communication be called for short:, be called for short GSM) etc. standard, the frequency range of support comprises and is not limited to DD800M, 700M, 1800M, 1900M and 900M frequency range.Between that the embodiment of the present invention has solved same frequency range and different frequency range, the inter-modulated signal of descending generation is to up interference.Intermodulation Interference includes but not limited to third order intermodulation and fifth order intermodulation.It should be noted that: not every downstream signal all has interference to upward signal to only have the Intermodulation Interference of meeting condition just can produce interference.Intermodulation Interference condition is: if f1, f2 is any two frequencies in band downlink, and between these two frequencies, can produce frequency is the inter-modulated signal of 2f1+f2 and 2f1-f2, if inter-modulated signal drops in uplink band, and can be to up generation Intermodulation Interference.Arrive for example signal of mobile phone transmitting of terminal because upward signal is antenna reception, the signal of terminal transmitting is very weak, disturbs very large on the impact of upward signal.In addition, up negligible to descending interference, because the relative downstream signal (tens watts) of upward signal (milliwatt level) is too little.
A kind of architecture of base station schematic diagram that Fig. 1 provides for the embodiment of the present invention.Base station as shown in Figure 1 comprises antenna element 11 and radio frequency unit 12, and radio frequency unit 12 can be RFU, can be also RRU.Radio frequency unit can be supported DD800M tri-carrier waves or non-adjacent two carrier waves.Antenna element 11 shown in Fig. 1 comprises two dual polarization vibrators or two single polarization oscillators.Wherein, dual polarization vibrator refers to that two antenna element are installed together, and a polarised direction is+45 degree that a polarised direction is-45 degree.Single polarization oscillator refers to an antenna element, a polarised direction.
Wherein, corresponding port and in running order port corresponding to transmission channel of described radio frequency unit 12 of receive path that radio frequency unit 12 is in running order, connects from different dual polarization vibrators in described antenna element 11 or the corresponding port of different single polarization oscillator respectively.That is to say, the reception of radio frequency unit and transmitting are carried out respectively on different dual polarization vibrators, rather than carry out on same dual polarization vibrator; Or the reception of radio frequency unit and transmitting are carried out respectively on different single polarization oscillators, rather than carry out on same single polarization oscillator.
Due to, radio frequency unit receives signal and transmits respectively and carries out on different dual polarization vibrators or different single polarization oscillator, in antenna element, different dual polarization vibrator or different single polarization oscillators are isolated mutually, i.e. data feedback channel and down going channel isolation, and up-downgoing is completely unaffected.Therefore, avoided the interference to received signal of inter-modulated signal that radio frequency unit transmits, i.e. the interference of the inter-modulated signal of descending carrier to upward signal.The method providing by the embodiment of the present invention can solve the interference of inter-modulated signal to upward signal that the downstream signal of same frequency range produces, and also can have the interference to upward signal of inter-modulated signal that the downstream signal solving between different frequency range produces.
The technical scheme that the present embodiment provides is used existing radio frequency unit, for example, RRU and RFU, and the networking plan of simple possible, do not need to increase in the situation of radio frequency unit, solve a up-downgoing perturbation technique difficult problem, meet the demand of multiple users share radio frequency unit, compared existing many RRU/RFU solution, used the present embodiment only to use a radio frequency unit compared with using 2 radio frequency units, saved 1/2 networking cost, systematic function is completely unaffected.
For instance, described antenna element comprises N dual polarization vibrator, 1 dual polarization vibrator on described antenna element to should have 2 ports and radio frequency unit to comprise 2N transmitting-receiving port in the situation that, for the interference to upward signal of the third order intermodulation signal of avoiding descending carrier, the connected mode of antenna element and radio frequency unit is as follows:
N is even number, and N dual polarization vibrator comprises N/2 the first dual polarization vibrator and N/2 the second dual polarization vibrator.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
Any 2 transmitting-receiving ports of described radio frequency unit are connected to respectively a corresponding port of dual polarization vibrator in described antenna element.
Receive path corresponding to 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the first dual polarization vibrator described in described antenna element connect be in closed condition, and the transmission channel that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the first dual polarization vibrator described in described antenna element connect are corresponding is in running order.Transmission channel corresponding in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect 2 transmitting-receiving ports be in closed condition, and the receive path that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect are corresponding is in running order.That is to say, the N of an antenna element dual polarization vibrator is divided into two groups, wherein the receiving function of the transmitting-receiving port of the radio frequency unit of one group of dual polarization vibrator connection is closed, the sending function of the transmitting-receiving port of the radio frequency unit that another group dual polarization vibrator connects is closed, therefore, radio frequency unit receives signal and transmitted signal on different dual polarization vibrators, thereby avoid the interference to upward signal of inter-modulated signal that downstream signal produces, no matter be between similar frequency bands or between not identical frequency range, can solve the interference of inter-modulated signal to upward signal that downstream signal produces.
In Fig. 2 A to Fig. 6, TX(Transmit) expression transmit port, RX(Receive) expression receiving port, RX/TX(Receive/Transmit) expression transmitting-receiving port.The corresponding embodiment of Fig. 2 A to Fig. 6 is respectively the specific embodiment of Fig. 1.
The another kind of architecture of base station schematic diagram that Fig. 2 A provides for the embodiment of the present invention.As shown in Figure 2 A, the antenna element 11 that the present embodiment provides comprises 2 dual polarization vibrators, and wherein, wherein 1 dual polarization vibrator is the first dual polarization vibrator, another 1 dual polarization vibrator is the second dual polarization vibrator, every 1 dual polarization vibrator on antenna element to there being 2 ports; The radio frequency unit 12 that the present embodiment provides comprises 4 transmitting-receivings port: A, B, C and D.As shown in Figure 2 A, antenna element 11 is 2 dual polarized antennas respectively with 2 ports, and two dual polarized antennas are installed together.As shown in Figure 2 B, antenna element 11 can be also 1 dual polarized antenna with 4 ports.Radio frequency unit 12 can be RFU, can be also RRU.Radio frequency unit can be supported three carrier waves of DD800M or non-adjacent two carrier waves of DD800M.
4 transmitting-receiving ports of radio frequency unit 12 are connected to respectively 4 ports of antenna element.Wherein, in described radio frequency unit 12, be connected to the receive paths of corresponding 2 the transmitting-receiving port A of a dual polarization vibrator 111 of described antenna element 11 and B in closed condition, in radio frequency unit, be connected to 2 transmitting-receiving port C of another dual polarization vibrator 112 of described antenna element and the transmission channels of D in closed condition.That is to say, the transmitting-receiving port A of radio frequency unit 12 and the receive path of B are in closed condition, when work, transmitting-receiving port A and the B of radio frequency unit 12 only has emission function, the transmitting-receiving port C of radio frequency unit 12 and the transmission channel of D are in closed condition, when work, transmitting-receiving port C and the D of radio frequency unit 12 only has receiving function, radio frequency unit 12 transmits by the dual polarization vibrator 111 of antenna element 11, and radio frequency unit 12 receives signal by the dual polarization vibrator 112 of antenna element 11.Because receiving signal and transmit, radio frequency unit 12 on different dual polarization vibrators, carries out respectively, therefore, avoid the inter-modulated signal that transmits and produce of transmitting-receiving port A and the B of radio frequency unit 12, disturbed the transmitting-receiving port C of radio frequency unit 12 and the reception signal of D.Equally, also avoid the inter-modulated signal that transmits and produce of transmitting-receiving port C and the D of radio frequency unit 12, disturbed the transmitting-receiving port A of radio frequency unit 12 and the reception signal of B.
Another architecture of base station schematic diagram that Fig. 3 provides for the embodiment of the present invention.The difference of Fig. 3 and Fig. 2 A is, the radio frequency unit 11 in Fig. 3 comprises 2 receiving ports and 2 transmitting-receiving ports, and wherein, A and B are transmitting-receiving port, and C and D are receiving port, and in Fig. 2 A, radio frequency unit 11 comprises 4 transmitting-receiving ports.Antenna element in Fig. 3 is 1 dual polarized antenna with 4 ports, can be also 2 dual polarized antennas respectively with 2 ports.Radio frequency unit 12 can be RFU, can be also RRU.Radio frequency unit can be supported DD800M tri-carrier waves or non-adjacent two carrier waves of DD800M.
Equally, antenna element 11 comprises 2 dual polarization vibrators, wherein, 1 dual polarization vibrator on described antenna element to there being 2 ports.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, and specific implementation is as follows:
The dual polarization vibrator 111 that 2 transmitting-receiving ports of radio frequency unit are connected to respectively described antenna element is to corresponding port, 2 receive paths of receiving and dispatching port A and B of radio frequency unit are in closed condition, and 2 transmission channels of receiving and dispatching port A and B of radio frequency unit are in running order; Another dual polarization vibrator 112 that 2 receiving port C of described radio frequency unit and D are connected to respectively antenna element is to corresponding port.Therefore, radio frequency unit transmits from transmitting-receiving port A and B, receives signal from receiving port C and D, and the third order intermodulation signal between descending carrier can not produce and disturb upward signal.
In like manner, radio frequency unit 12 also can comprise 2 transmitting-receivings port A and B, 2 emission port C and D.The dual polarization vibrator 111 that 2 transmitting-receiving ports of radio frequency unit are connected to respectively described antenna element is to corresponding port, and 2 transmission channels of receiving and dispatching port A and B of radio frequency unit are in closed condition; Another dual polarization vibrator 112 that 2 emission port C of described radio frequency unit and D are connected to respectively antenna element is to corresponding port.Therefore, port C and the D of radio frequency unit transmit by dual polarization vibrator 112, and port A and B receive signal by dual polarization vibrator 111, guarantee the maximum isolation between antennas of sending and receiving, and the inter-modulated signal of descending generation can not produce and disturb upward signal.
Another architecture of base station schematic diagram that Fig. 4 provides for the embodiment of the present invention.The present embodiment antenna element adopts single polarization oscillator.As shown in Figure 4, described antenna element 11 comprises 2 single polarization oscillators, 1 single polarization oscillator corresponding port on described antenna element, and radio frequency unit 12 comprises 2 transmitting-receiving ports.Wherein, antenna element 11 can be 2 antennas respectively with 1 single polarization oscillator, can be also 1 single-polarized antenna with 2 ports.The present embodiment is applicable to indoor covering networking.Radio frequency unit 12 is supported three carrier waves of DD800M or non-adjacent two carrier waves of DD800M.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different single polarization oscillators in antenna element respectively, and specific implementation is as follows:
2 transmitting-receiving ports of described radio frequency unit are connected to respectively 2 ports of described antenna element; Wherein, the receive path of 1 of radio frequency unit transmitting-receiving port is in closed condition and transmission channel is in running order, and the transmission channel of other 1 transmitting-receiving port of described radio frequency unit is in closed condition and receive path is in running order.Particularly, in Fig. 4, in the receive path of the A port of radio frequency unit 12 when work, is in closed condition, in transmission channel when work of B port, is in closed condition, namely, transmit from A port, receive signal from B port, A port is connected different single polarization oscillators with B port, thereby, the reception of radio frequency unit 12 and transmitting are carried out on different single polarization oscillator respectively on antenna element, transmitting of A port can not produce interference to the reception signal of B port, avoided the inter-modulated signal between descending carrier that upward signal is produced and disturbed.In like manner, also the receive path of B port can be closed, the transmission channel of A port is closed.Namely, transmit from A port, receive signal from B port, A port is connected different single polarization oscillators with B port, thereby, the reception of radio frequency unit 12 and transmitting are carried out on different single polarization oscillator respectively on antenna element, and transmitting of A port can not produce interference to the reception signal of B port, have avoided the inter-modulated signal between descending carrier that upward signal is produced and disturbed.
Another architecture of base station schematic diagram that Fig. 5 provides for the embodiment of the present invention.The present embodiment radio frequency unit is set to 6 ports of 3 port transmittings and receives, and when networking, sector, three, every station, configures 2 RRU/RFU.The radio frequency unit that the present embodiment provides comprises 2 radio frequency subelements, and each radio frequency subelement comprises 3 transmitting-receiving ports and 3 receiving ports, and each radio frequency unit can be supported DD800M tri-carrier waves or non-adjacent two carrier waves.Antenna element comprises 6 dual polarization vibrators, wherein, each dual polarization vibrator on described antenna element to there being 2 ports.
As shown in Figure 5, radio frequency unit 12 comprises 2 radio frequency subelements 121 and 122, and wherein, the port one, 3 and 5 in radio frequency subelement 121 is transmitting-receiving port, and port 2,4 and 6 is receiving port; Port one, 3 and 5 in radio frequency subelement 122 is transmitting-receiving port, and port 2,4 and 6 is receiving port.Antenna element is the dual polarized antenna 111,112 and 113 of 4 ports of 3 difference.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, and specific implementation is as follows:
12 ports of antenna element are connected to respectively 12 ports of described radio frequency unit, wherein, 1 port described in each in described antenna element in the first dual polarization vibrator is connected to the transmitting-receiving port of 1 radio frequency subelement, and another 1 port in described the first dual polarization vibrator is connected to the transmitting-receiving port of another 1 radio frequency subelement; 1 port described in each in described antenna element in the second dual polarization vibrator is connected to the receiving port of 1 radio frequency subelement, and another 1 port in described the second dual polarization vibrator is connected to the receiving port of another 1 radio frequency subelement.For avoiding downlink to disturb uplink receiving, close the receiving function of all transmitting-receiving ports of each described radio frequency subelement, the receive path of all transmitting-receiving ports of each described radio frequency subelement is in closed condition and transmission channel is in running order.Namely, two radio frequency subelements use an emission port and a receiving port separately, form a sector with 2 ports receptions of 2 ports transmittings with dual polarized antenna or 2 dual polarized antennas respectively with 2 ports with 4 ports, two radio frequency subelements have formed the sector of 2 ports receptions of 2 ports transmittings of 3 up-downgoing isolation.
As shown in Figure 5,1 port in a dual polarization vibrator of dual polarized antenna 111 is connected to the transmitting-receiving port one of radio frequency subelement 121, and another 1 port in this dual polarization vibrator is connected to the transmitting-receiving port one of radio frequency subelement 122; 1 port in another dual polarization vibrator of dual polarized antenna 111 is connected to the receiving port 2 of radio frequency subelement 121, and another 1 port in this dual polarization vibrator is connected to the receiving port 2 of radio frequency subelement 122.So, the transmitting-receiving port one of radio frequency subelement 121 and the transmitting-receiving port one of radio frequency subelement 122 transmit by a dual polarization vibrator of dual polarized antenna 111, another dual polarization vibrator by dual polarized antenna 111 receives signal, receive signal and transmit and carry out on different dual polarization vibrators, avoided the inter-modulated signal between descending carrier that upward signal is produced and disturbed.
Dual polarized antenna 112 and dual polarized antenna 113 are similar with the connected mode of radio frequency subelement with connected mode and the dual polarized antenna 111 of radio frequency subelement.For avoiding the inter-modulated signal that downlink produces to disturb uplink receiving, the receive path of all transmitting-receiving ports of each radio frequency subelement, in closed condition, only has emission function when work.
Another architecture of base station schematic diagram that Fig. 6 provides for the embodiment of the present invention.In the present embodiment, two radio frequency subelements share a dual polarized antenna by mixer.As shown in Figure 6, the base station that the present embodiment provides comprises antenna element 11, radio frequency unit 12 and mixer 13.Wherein, radio frequency unit comprises radio frequency subelement 121 and radio frequency subelement 122, and antenna element 11 comprises 2 dual polarization vibrators, wherein, every 1 dual polarization vibrator on antenna element to there being 2 ports.
2 transmitting-receiving ports of radio frequency subelement 122 are connected to respectively corresponding 2 ports of dual polarization vibrator 111 in described antenna element, and other 2 transmitting-receiving ports of radio frequency subelement 122 are connected to respectively 2 ports of described mixer 13.2 transmitting-receiving ports of radio frequency subelement 121 are connected to respectively other 2 ports of described mixer 13; 2 ports of other of described mixer are connected to corresponding 2 ports of another dual polarization vibrator 112 in described antenna element.
The third order intermodulation signal frequency of F1 frequency range descending carrier has dropped on the up region of F2 frequency range, can impact F2 receptivity, for avoiding interference, corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connect from the corresponding port of different dual polarization vibrators in antenna element respectively, specific implementation is as follows:
Can be by closing 2 transmitting-receiving port A and the B receiving function of the radio frequency subelement 122 that uses F2 frequency range, the receive path that is namely connected to 2 of mixer transmitting-receiving ports in radio frequency subelement 122 is in closed condition and transmission channel is in running order, the impact with the third order intermodulation signal that stops F1 frequency range descending carrier on F2 frequency range performance.So, transmitting-receiving port A and the B of radio frequency subelement 122 transmit by dual polarized antenna 111, transmitting-receiving port C and D be by dual polarized antenna 112 receiving and transmitting signals, and the inter-modulated signal that can avoid downstream signal that radio frequency subelement 121 is launched to produce, receives the impact of signal on radio frequency subelement 122.In the present embodiment, only have the inter-modulated signal of the descending generation of F1 to disturb the upward signal of F1.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications 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 (10)
1. a base station, is characterized in that, comprises antenna element and radio frequency unit;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connect from different dual polarization vibrators in described antenna element or the corresponding port of different single polarization oscillator respectively, in described antenna element, different dual polarization vibrator or different single polarization oscillators are isolated mutually.
2. base station according to claim 1, it is characterized in that, described antenna element comprises N dual polarization vibrator, a wherein said N dual polarization comprises N/2 the first dual polarization vibrator and N/2 the second dual polarization vibrator, every 1 dual polarization vibrator is to there being 2 ports on described antenna element, and described N is even number; Described radio frequency unit comprises 2N transmitting-receiving port;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
Any 2 transmitting-receiving ports of described radio frequency unit are connected to respectively a corresponding port of dual polarization vibrator in described antenna element;
Receive path corresponding to 2 transmitting-receiving ports in the radio frequency unit connecting with corresponding 2 ports of the first dual polarization vibrator described in described antenna element be in closed condition, and the transmission channel that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the first dual polarization vibrator described in described antenna element connect are corresponding is in running order;
Transmission channel corresponding in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect 2 transmitting-receiving ports be in closed condition, and the receive path that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect are corresponding is in running order.
3. base station according to claim 2, it is characterized in that, described radio frequency unit comprises 4 transmitting-receiving ports, described antenna element comprises 2 dual polarization vibrators, wherein, wherein 1 dual polarization vibrator is the first dual polarization vibrator, and another 1 dual polarization vibrator is the second dual polarization vibrator, every 1 dual polarization vibrator on described antenna element to there being 2 ports;
Receive path corresponding to 2 transmitting-receiving ports in the radio frequency unit connecting with corresponding 2 ports of the first dual polarization vibrator described in described antenna element is in closed condition, the transmission channel that 2 transmitting-receiving ports in the radio frequency unit that corresponding 2 ports of the first dual polarization vibrator described in described antenna element connect are corresponding is in running order, is specially:
4 transmitting-receiving ports of described radio frequency unit are connected to respectively 4 ports of described antenna element; Wherein, in described radio frequency unit, be connected to corresponding 2 receive paths of receiving and dispatching ports of a dual polarization vibrator of described antenna element in closed condition, corresponding 2 transmission channels of receiving and dispatching ports of a dual polarization vibrator that are connected to described antenna element in described radio frequency unit are in running order;
Transmission channel corresponding in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect 2 transmitting-receiving ports is in closed condition, the receive path that in the radio frequency unit that corresponding 2 ports of the second dual polarization vibrator described in described antenna element connect 2 transmitting-receiving ports are corresponding is in running order, is specially:
In described radio frequency unit, be connected to the transmission channels of 2 of another dual polarization vibrator transmitting-receiving ports of described antenna element in closed condition, the receive paths of 2 transmitting-receiving ports that are connected to another dual polarization vibrator of described antenna element in described radio frequency unit are in running order.
4. base station according to claim 1, is characterized in that, described radio frequency unit comprises 2 receiving ports and 2 transmitting-receiving ports, and described antenna element comprises 2 dual polarization vibrators, wherein, every 1 dual polarization vibrator on described antenna element to there being 2 ports;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
2 transmitting-receiving ports of described radio frequency unit are connected to respectively a corresponding port of dual polarization vibrator of described antenna element, the receive path of 2 transmitting-receiving ports of described radio frequency unit is in closed condition, the transmission channel of 2 transmitting-receiving ports of described radio frequency unit is in running order, and 2 receiving ports of described radio frequency unit are connected to respectively the corresponding port of another dual polarization vibrator of described antenna element.
5. according to the base station described in claim 3 or 4, it is characterized in that, described antenna element is 1 dual polarized antenna with 4 ports, or described antenna element is 2 dual polarized antennas respectively with 2 ports.
6. base station according to claim 1, is characterized in that, described radio frequency unit comprises 2 transmitting-receiving ports, and described antenna element comprises 2 single polarization oscillators, and every 1 single polarization oscillator is a corresponding port on described antenna element;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different single polarization oscillators in antenna element respectively, is specially:
2 transmitting-receiving ports of described radio frequency unit are connected to respectively 2 ports of described antenna element; Wherein, the receive path of any 1 transmitting-receiving port of described radio frequency unit is in closed condition and transmission channel is in running order, and the transmission channel of other 1 transmitting-receiving port of described radio frequency unit is in closed condition and receive path is in running order.
7. base station according to claim 1, it is characterized in that, described radio frequency unit comprises 2 radio frequency subelements, each radio frequency subelement comprises 3 transmitting-receiving ports and 3 receiving ports, described antenna element comprises 6 dual polarization vibrators, every 1 dual polarization vibrator on described antenna element to there being 2 ports; Wherein, described 6 dual polarization vibrators comprise 3 the first dual polarization vibrators and 3 the second dual polarization vibrators;
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
12 ports of described antenna element are connected to respectively 12 ports of described radio frequency unit, wherein, 1 port described in each in described antenna element in the first dual polarization vibrator is connected to the transmitting-receiving port of 1 radio frequency subelement, and another 1 port is connected to the transmitting-receiving port of another 1 radio frequency subelement; 1 port described in each in described antenna element in the second dual polarization vibrator is connected to the receiving port of 1 radio frequency subelement, and another 1 port is connected to the receiving port of another 1 radio frequency subelement;
The receive path of all transmitting-receiving ports of each described radio frequency subelement is in closed condition and transmission channel is in running order.
8. base station according to claim 7, is characterized in that, described antenna element is 3 dual polarized antennas respectively with 4 ports.
9. base station according to claim 1, is characterized in that, also comprises mixer, and described radio frequency unit comprises the first radio frequency subelement and the second radio frequency subelement; Described antenna element comprises 2 dual polarization vibrators, wherein, 1 dual polarization vibrator on described antenna element to there being 2 ports;
The first radio frequency unit comprises 2 transmitting-receiving ports, and the second frequent unit comprises 4 transmitting-receiving ports, shares the dual polarized antenna of 2 ports.
Corresponding port and in running order port corresponding to transmission channel of described radio frequency unit of receive path that described radio frequency unit is in running order, connects from the corresponding port of different dual polarization vibrators in antenna element respectively, is specially:
2 transmitting-receiving ports of described the second radio frequency subelement are connected to respectively corresponding 2 ports of dual polarization vibrator in described antenna element, and other 2 transmitting-receiving ports of described the second radio frequency subelement are connected to respectively 2 ports of described mixer; 2 transmitting-receiving ports of described the first radio frequency subelement are connected to respectively other 2 ports of described mixer; 2 ports of other of described mixer are connected to corresponding 2 ports of another dual polarization vibrator in described antenna element;
The receive path that is connected to 2 of mixer transmitting-receiving ports in described the second radio frequency subelement is in closed condition and transmission channel is in running order.
10. base station according to claim 9, is characterized in that, described antenna element comprises 2 dual polarized antennas respectively with 2 ports.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116678.6A CN103874076B (en) | 2014-03-26 | 2014-03-26 | Base station |
| RU2018120517A RU2695102C2 (en) | 2014-03-26 | 2015-01-26 | Base station |
| PCT/CN2015/071547 WO2015143943A1 (en) | 2014-03-26 | 2015-01-26 | Base station |
| EP15767929.1A EP3116253B1 (en) | 2014-03-26 | 2015-01-26 | Base station |
| JP2016559327A JP6325687B2 (en) | 2014-03-26 | 2015-01-26 | base station |
| KR1020167029290A KR101909169B1 (en) | 2014-03-26 | 2015-01-26 | Base station |
| RU2016141878A RU2659233C2 (en) | 2014-03-26 | 2015-01-26 | Basic station |
| US15/276,063 US10038246B2 (en) | 2014-03-26 | 2016-09-26 | Base station |
| US16/034,951 US10498039B2 (en) | 2014-03-26 | 2018-07-13 | Base station |
| US16/688,182 US11258179B2 (en) | 2014-03-26 | 2019-11-19 | Base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116678.6A CN103874076B (en) | 2014-03-26 | 2014-03-26 | Base station |
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| CN103874076A true CN103874076A (en) | 2014-06-18 |
| CN103874076B CN103874076B (en) | 2019-03-26 |
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| CN103874076B (en) | 2019-03-26 |
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