WO2011124180A2 - Antenna device, base station system, and method for tuning antenna device - Google Patents

Antenna device, base station system, and method for tuning antenna device Download PDF

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Publication number
WO2011124180A2
WO2011124180A2 PCT/CN2011/074042 CN2011074042W WO2011124180A2 WO 2011124180 A2 WO2011124180 A2 WO 2011124180A2 CN 2011074042 W CN2011074042 W CN 2011074042W WO 2011124180 A2 WO2011124180 A2 WO 2011124180A2
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WO
WIPO (PCT)
Prior art keywords
antenna
control signal
according
esc
device
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PCT/CN2011/074042
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French (fr)
Chinese (zh)
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WO2011124180A3 (en
Inventor
李挺钊
李玉林
吴旺军
严丰庆
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/074042 priority Critical patent/WO2011124180A2/en
Publication of WO2011124180A2 publication Critical patent/WO2011124180A2/en
Publication of WO2011124180A3 publication Critical patent/WO2011124180A3/en

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/24Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means

Abstract

An antenna device, a base station system, and a method for tuning the antenna device are provided in the embodiments of the present invention. The antenna device includes: a first antenna; a second antenna sharing a shield with the first antenna and having a different polarization direction; a control apparatus for receiving an electric tuning control signal for the first antenna and/or an electric tuning control signal for the second antenna, and according to the electric tuning control signal for the first antenna, tuning a down tilt angle of the first antenna and/or according to the electric tuning control signal for the second antenna, tuning a down tilt angle of the second antenna. Unlike the traditional double polarized antenna, in which one down tilt angle must be shared, the embodiments of the present invention may respectively tune the down tilt angles of two groups of antenna elements that constitute a shield-sharing double polarized antenna, thus may support different frequency bands or different systems in one frequency band to adopt different down tilt angles. Only one double polarized antenna is needed without additional antenna feeder, thus the cost of the device is decreased.

Description

 Antenna device, base station system and method for adjusting antenna device

 Embodiments of the present invention relate to the field of communication technologies, and more particularly, to an antenna device, a base station system, and a method of adjusting an antenna device. Background technique

 With the development of cellular communication technology, multi-frequency antenna feed has become an industry trend. For example, 800MHz and 900MHz share a wide-band antenna of 790~960MHz, and 1800MHz and 2100MHz share a pair of 1710~2200MHz broadband antennas. However, due to differences in network requirements, different frequency bands have different requirements for antenna downtilt. For example, the newly introduced 800MHz frequency band of LTE (Long Term Evolution) is co-located in urban area with 900MHz. 900MHz is mostly used in GSM (Global System for Mobile Communications), and it is hoped that there will be good coverage, dense site, and large antenna downtilt to avoid interference. However, for the new LTE800, in the initial construction, to minimize investment I hope to expand the coverage area as much as possible to reduce the number of stations, so that the antenna downtilt is relatively small.

 In addition, the introduction of 3G through refarming in the 2G band has become an industry trend. However, different carrier types also have different requirements for antenna downtilt due to differences in network requirements. For example, in the suburbs, the basic dip angles of different systems can be tolerated, and most sites in urban areas are more difficult to tolerate different systems. This is one of the reasons why there are a large number of GSM sites and a small number of UMTS (Universal Mobile Telecommunications System) sites.

 However, the downtilt angles of the two sets of antennas (vibrators) of the current dual-polarized antenna must be the same. Therefore, even if the GSM/UMTS dual-mode base station is used, if the same 900MHz frequency band is used, since the two sets of polarized antenna elements of the current dual-polarized antenna are synchronously implemented with electric downtilt adjustment, this implementation cannot achieve GSM and UMTS. The downtilt angle cannot balance the network coverage performance of GSM and UMTS. To solve this problem, it is only possible to split the GSM/UMTS multimode transceiver into two independent mode transceivers, which are implemented by using two dual-polarized antennas, which cannot meet the above requirements. The addition of a separate set of base transceiver stations and antenna feeders is costly.

For multi-band base stations that can use different frequency bands, such as 1800MHz and 2100MHz base stations, dual-polarized antennas cover 1710~2200MHz. The base station uses two frequency band transceivers, and shares a one-day antenna system through a multi-frequency splitter with an electric adjustment function. Also due to the current dual-polarized antenna The two polarized antenna elements are synchronized to achieve electrical downtilt adjustment. This configuration scheme cannot achieve different downtilt angles for different frequency bands. If you want to solve this problem, you must increase the antenna, or increase the feeder, only add the antenna, which increases the cost of equipment. Summary of the invention

 The embodiments of the present invention provide an antenna device, a base station system, and a method for adjusting an antenna device, which can implement different downtilt angles in different frequency bands or different frequency bands in the same frequency band, and the cost is low.

 In one aspect, an antenna device is provided, including: a first antenna; a second antenna that is shared with the first antenna but has different polarization directions; and a control device configured to receive an ESC control signal for the first antenna and/or Or for the ESC control signal of the second antenna, and adjusting the downtilt angle of the first antenna according to the ESC control signal for the first antenna and/or adjusting the downtilt angle of the second antenna according to the ESC control signal for the second antenna.

 In another aspect, a transceiver is provided, including: a signal generating unit, configured to generate an ESC control signal for a first antenna and/or an ESC control signal for a second antenna, the first antenna and the first The two antennas belong to the same antenna device, the first antenna and the second antenna are shared but have different polarization directions; the signal transmission unit is configured to transmit an ESC control signal for the first antenna to the antenna device and/or to the second antenna The electrical control signal is adjusted such that the antenna device adjusts the downtilt angle of the first antenna according to the electrical control signal for the first antenna and/or adjusts the downtilt angle of the second antenna according to the electrical control signal for the second antenna.

 In another aspect, a base station system is provided, including the aforementioned antenna device and/or transceiver. In another aspect, a method for adjusting an antenna device is provided, wherein the antenna device includes a first antenna and a second antenna, the first antenna and the second antenna are shared but have different polarization directions, and the method includes: receiving An ESC control signal of an antenna and/or an ESC control signal for the second antenna; adjusting a downtilt angle of the first antenna according to an ESC control signal for the first antenna and/or according to an ESC control signal for the second antenna Adjust the downtilt angle of the second antenna.

In another aspect, a method for adjusting an antenna device is provided, generating an ESC control signal for a first antenna and/or an ESC control signal for a second antenna, where the first antenna and the second antenna belong to the same antenna device, One antenna is shared with the second antenna but has a different polarization direction; an electrical control signal for the first antenna and/or an electrical control signal for the second antenna are transmitted to the antenna device such that the antenna device is adapted to the first antenna The ESC control signal adjusts the downtilt angle of the first antenna and/or adjusts the downtilt angle of the second antenna based on the ESC control signal for the second antenna. Different from the conventional dual-polarized antenna that can only have a common down-tilt angle, the embodiment of the present invention can separately adjust the downtilt angles of the two sets of antenna elements that constitute the common-cover dual-polarized antenna, so that the two sets of antenna elements can not have a common downtilt angle, thereby Different downbands can be used for different frequency bands or different systems in the same frequency band. Since only one dual-polarized antenna is needed without additional antenna feed, the equipment cost is reduced. DRAWINGS

 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only the present invention. For some embodiments, other drawings may be obtained from those skilled in the art without any inventive labor.

 1 is a schematic block diagram of an antenna device in accordance with an embodiment of the present invention.

 2 is a schematic block diagram of a transceiver in accordance with an embodiment of the present invention.

 3 is a schematic block diagram of a dual polarized antenna device in accordance with one embodiment of the present invention.

 Fig. 4 is a schematic diagram showing an example of a base station system employing an antenna apparatus according to an embodiment of the present invention.

 Figure 5 is a schematic block diagram of a multimode transceiver supporting the same frequency band.

 Fig. 6 is a schematic diagram showing another example of a base station system employing an antenna apparatus according to an embodiment of the present invention.

 Figure 7 is a schematic block diagram of a 1T2R transceiver of one frequency band in the base station apparatus of Figure 5.

 FIG. 8 is a schematic structural diagram of an antenna device according to another embodiment of the present invention.

 9 is a schematic flow chart of a method of adjusting an antenna downtilt according to an embodiment of the present invention. FIG. 10 is a schematic flow chart of a method of adjusting an antenna downtilt according to another embodiment of the present invention. detailed description

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

One embodiment of the present invention is applicable to dual polarized antennas. The dual-polarized antenna realizes the electric downtilt adjustment by changing the phase of the radio frequency signal to the dual-polarized antenna vibrator, thereby tilting the vertical directional pattern of the antenna. Since the intensity of the field strength in all directions of the antenna increases and decreases at the same time, it is guaranteed that after changing the tilt angle The antenna pattern does not change much, so that the coverage distance of the main lobe is shortened, and at the same time, the entire directional pattern reduces the coverage area in the serving cell sector without causing interference. Practice has proved that when the down-tilt angle of the ESC antenna changes from 1° to 5°, the antenna pattern is approximately the same as that of the mechanical down-tilt antenna; when the down-tilt angle is 5. ~ 10. When changing, the antenna pattern is slightly improved compared with the mechanical down-tilt antenna; when the down-tilt angle is changed from 10° to 15°, the antenna pattern changes more than the mechanical antenna; when the mechanical antenna is tilted down by 15°, The antenna pattern is significantly different from that of the mechanical antenna. At this time, the shape of the antenna pattern changes little, the coverage distance of the main lobe direction is significantly shortened, and the entire antenna pattern is within the sector of the base station. Increasing the downtilt angle allows the sector coverage area to be reduced without interference, which is needed in the application. Therefore, the use of an electric adjustable antenna can reduce the call loss and reduce the interference.

 In the existing dual-polarized antenna, two columns of orthogonally polarized vibrators share an electric adjustment device and are synchronously adjusted. Different from the conventional dual-polarized antenna which can only have a common downtilt angle, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas constituting the common-cover dual-polarized antenna, so that the two antennas can be not down-tilted. Since only one dual-polarized antenna is needed without additional antenna feed, the equipment cost is reduced.

 1 is a schematic block diagram of a shared-shielded dual-polarized antenna device 10 in accordance with an embodiment of the present invention.

 As shown in Fig. 1, the antenna device 10 includes a first antenna 11, a second antenna 12, and a control device 13. The first antenna 11 and the second antenna 12 are collectively covered but have different polarization directions (e.g., +45 degrees and -45 degrees). The control unit 13 is for adjusting the downtilt angles of the first antenna 11 and the second antenna 12, respectively. The first antenna may include a set of antenna elements, the set of antenna elements includes at least one antenna element, and the second antenna is also the same.

 The control device 13 can receive the ESC control signal for the first antenna 11 and/or the ESC control signal for the second antenna 12, and adjust the lower portion of the first antenna 11 according to the ESC control signal for the first antenna 11 accordingly. The dip angle and/or the downtilt angle of the second antenna 12 is adjusted according to the ESC control signal for the second antenna 12. Thereby, the respective adjustments of the downtilt angles of the first antenna 11 and the second antenna 12 are achieved.

 In this way, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas that form the common dual-polarized antenna, so that the two antennas can not have a common downtilt angle, thereby supporting different frequency bands or different modes of the same frequency band using different downtilt angles. . Since only one dual-polarized antenna is needed without additional spikes, equipment costs are reduced.

 The respective adjustment of the downtilt angles of the first antenna 11 and the second antenna 12 means that the control device 13 can adjust only the downtilt angle of the first antenna 11 or merely adjust the downtilt angle of the second antenna 12. Alternatively, on the basis of this, the control unit 13 can also adjust the downtilt angles of the first antennas 11 and 12 at the same time.

In order to achieve separate adjustment of the downtilt angle of the first antenna 11 and the second antenna 12, the base station transmits and receives The signal generator can generate an ESC control signal for the first antenna 11 and an ESC control signal for the second antenna 12, respectively.

 2 is a schematic block diagram of a transceiver in accordance with an embodiment of the present invention. The transceiver 200 of FIG. 2 includes a signal generating unit 210 and a signal transmitting unit 220.

 The signal generation unit 210 generates an ESC control signal for the first antenna and/or an ESC control signal for the second antenna. The first antenna and the second antenna belong to the same antenna device (e.g., antenna device 10 of Fig. 1), and the first antenna and the second antenna are shared but have different polarization directions (e.g., antennas 11 and 12 of Fig. 1).

 The signal transmission unit 220 transmits an ESC control signal for the first antenna and/or an ESC control signal for the second antenna to the antenna device, so that the antenna device adjusts the downtilt angle of the first antenna according to the ESC control signal for the first antenna. And/or adjusting the downtilt angle of the second antenna according to the ESC control signal for the second antenna.

 In this way, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas that form the common dual-polarized antenna, so that the two antennas can not have a common downtilt angle, thereby supporting different frequency bands or different modes of the same frequency band using different downtilt angles. . Since only one dual-polarized antenna is needed without additional spikes, equipment costs are reduced.

 The generation process and the transmission process of the ESC control signal for the first antenna and the ESC control signal for the second antenna may be separate, using different transmission channels. It is also possible to transmit two ESC control signals separately using the same channel. Optionally, based on this, two ESC control signals enable the antenna device to simultaneously adjust the two antennas.

 In the following, different embodiments of the invention are described with reference to specific scenarios. Figure 3 is a schematic block diagram of a dual polarized antenna device 20 in accordance with one embodiment of the present invention. In Fig. 3, the same or like parts as those in Fig. 1 are denoted by the same reference numerals. As shown in FIG. 3, the antenna device 20 includes a first antenna 11, a second antenna 12, and a control device 13. The first antenna 11 and the second antenna 12 are collectively covered but have different polarization directions (e.g., +45 degrees and -45 degrees). The first antenna 11 is composed of antenna elements 11-1, 11-2, ... 11-n (n is a natural number). The second antenna 12 is composed of antenna elements 12-1, 12-2, ... 12-n. The control device 13 is for adjusting the downtilt angles of the first antenna 11 and the second antenna 12, respectively.

 Specifically, as shown by the dashed box in FIG. 3, the control device 13 includes a first remote control unit RCU (131), a first phase shift driving unit 132, a second RCU 133, and a second phase shift drive. Unit 134.

The first RCU 131 is configured to receive the first antenna 11 through the first ESC control port 14 An ESC control signal SI is generated, and a first drive output is generated according to the first ESC control signal SI. As is known in the art, the RCU can be built with a stepper motor that operates according to the ESC control signal to produce a corresponding drive output (such as a mechanical output). The first phase shift driving unit 132 is connected to the shunt phase shifter A of the first antenna 11. The first phase shift driving unit 132 is a mechanical linkage device that moves according to the driving output of the first RCU 131 to adjust the phase of the signal after the shunt of the shunt phase shifter A, thereby adjusting the downtilt angle of the first antenna 11.

 Similarly, the second RCU 133 is configured to receive a second ESC control signal S2 for the second antenna 12 through the second ESC control port 15, and to generate a first drive output in accordance with the second ESC control signal S2. As is known in the art, the RCU can have a stepper motor that operates according to the ESC control signal to produce a corresponding drive output (such as a mechanical output). The second phase shift driving unit 134 is connected to the split phase shifter B of the second antenna 12. The second phase shift driving unit 134 is a mechanical linkage device that moves according to the driving output of the RCU 133 to adjust the phase of the signal after the shunt of the shunt phase shifter B, thereby adjusting the downtilt angle of the second antenna 12.

 It should be noted that the RCU is shown as being externally mounted outside the casing of the antenna device, but the present invention is not limited thereto, and the RCU of the embodiment of the present invention may be built into the radome.

 Further, the antenna device 20 has two antenna ports 16 and 17, which are connected to the first antenna 11 and the second antenna 12 through the split phase shifters A and B, respectively. The signals received through the antenna ports 16 and 17 are transmitted from the respective antenna elements of the antennas 11 and 12 after being branched by the splitter phase shifters A and B, respectively. On the other hand, the radio frequency signals received by the respective antenna elements of the antennas 11 and 12 are also fed to the base station main unit through the antenna ports 16 and 17 via the split phase shifters A and B, respectively.

 As described above, the antenna device 20 uses two sets of phase shift driving devices and RCU units to separate the phase modulation control mechanisms of the two sets of polarized vibrators of +45 degrees and -45 degrees, and the dual polarized antennas present four ports on the external interface. Two RF signal ports (16/17) and control ports (13/14) that control the tilting angle adjustment of the two sets of polarized vibrators.

 In this way, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas that form the common dual-polarized antenna, so that the two antennas can not have a common downtilt angle, thereby supporting different frequency bands or different modes of the same frequency band using different downtilt angles. . Since only one dual-polarized antenna is needed without additional spikes, equipment costs are reduced.

 4 is a schematic diagram of an example of a base station system 30 employing an antenna device 20. The base station system 30 is primarily directed to the same-band multi-mode scenario, such as utilizing a 900 MHz GSM/UMTS multimode base station.

As shown in FIG. 4, the base station system 30 includes the antenna device 20 and the base station master device 25 shown in FIG. The antenna device 20 and the base station master device 25 are connected by two feeders. The base station master device 25 includes signal ports 26 and 27 and a multimode transceiver 28 that are respectively connected to one feeder. Multimode transceiver 28 is an example of transceiver 200 of FIG. The signal transmission unit of the multimode transceiver 28 can transmit an ESC control signal for the first antenna 11 to the first ESC control port 13 of the antenna device 20, and transmit to the second ESC control port 14 of the antenna device 20 The ESC control signal of the two antennas 12.

 Between the two ESC control ports 13/14 and their respective feeders, SMBT (Smart Bias-Tee) modules 18 and 19 can be configured to extract the ESC control for the two antennas 11 and 12, respectively. signal.

 According to one embodiment of the invention, each mode passes through one of the transmission channels to one of the polarized antennas. For example, the transmit signal of the first system (e.g., GSM) occupies the transmit channel of port 26 of transceiver 28, and the transmit signal of the second mode (e.g., UMTS) occupies the transmit channel of port 27 of transceiver 28. When receiving a signal, all modes of primary diversity reception can distinguish between polarized channels, and both channels of a dual-polarized antenna are used.

 According to another embodiment of the invention, each of the polarized antennas can be assigned to a carrier combination of a different system, i.e., the first antenna 11 and the second antenna 12 are respectively used to transmit all or part of the carriers of the signals of at least one system. For example, the first antenna 11 is for transmitting a first partial carrier and a second partial carrier, and the second antenna 12 is for transmitting a third partial carrier and a fourth partial carrier. The first part of the carrier and the third part of the carrier belong to the first system (such as GSM), and the second part of the carrier and the fourth part of the carrier belong to the second system (such as UMTS). When receiving a signal, all modes of primary diversity reception can distinguish between polarized channels, and both channels of a dual-polarized antenna are used.

 According to another embodiment of the invention, the first antenna 11 can be used to transmit all carriers of the first system (e.g., GSM) and partial carriers of the second mode (e.g., UMTS). The rest of the carrier of the second mode can be transmitted through the second antenna 12. When receiving a signal, all modes of primary diversity reception can distinguish between polarized channels, and both channels of a dual-polarized antenna are used.

 Since the downtilt angles of the first antenna 11 and the second antenna 12 can be independently electrically adjusted, the transmit downtilt of the partial carriers can be flexibly configured according to requirements, and the common downtilt angle between the partial carriers or different standard signals can be realized, and the optimal angle is obtained. Network performance.

Figure 5 is a schematic block diagram of a multimode transceiver 28 supporting the same frequency band. Transceiver 28 supports 2T2R (Double-Function Dual Receive) in the same frequency band. As shown in FIG. 5, each antenna branch (the first antenna 11 and the second antenna 12) has an ESC control signal that is fed in the top port and transmitted to the antenna through the feeder line. The intermediate frequency, baseband and ESC control signal processing module 281 is an example of the signal generation unit 220 of FIG. 2, which respectively generates two ESC control signals. In addition, the intermediate frequency, baseband and ESC control signal processing module 281 is also responsible for the intermediate frequency/baseband processing of the two modes of transmitting and receiving signals.

 The module 282 shown by the dashed box in FIG. 5 is an example of the signal transmission unit 210 of FIG. 2, and transmits power to the first antenna 11 to the first ESC control port 13 (see FIG. 3) corresponding to the first antenna 11. The control signal is modulated to transmit an ESC control signal for the second antenna 12 to a second ESC control port 14 (see FIG. 3) corresponding to the second antenna 12.

 There are two types of down-dip transmission channels, each of which can be assigned to a system that achieves different downtilt angles for different modes of transmission. It is also possible to assign multiple modes on each channel, each using a downtilt angle. When two antennas with two polarization directions are used for reception, there is a difference in the downtilt angle and a slight loss in performance. According to network performance simulation and experimental verification, this difference in downtilt angle is acceptable for receiving the main diversity gain combining loss.

 Table 1 is an expandable different carrier combination and corresponding channel configuration.

Sequence configuration combination Two-port dual-polarization, different polarization directions, separate tuning section, down-tilt antenna

 First antenna second antenna

 1 two (for example, GSM, GSM TX UMTS TX

 UMTS) Carriers all sent differently GSM RX1 GSM RX2

 Shot down angle UMTS RX1 UMTS RX2

 TX—single mode TX—single mode

 RX— MSR ( Multi- RX— MSR

 Standard Radio;

 Standard radio)

 2 First standard (eg GSM) - GSM + partial carrier partial carrier UMTS

 Launch downtilt, second standard UMTS TX TX

 (such as UMTS) part of the carrier is the same as the GSM+ all UMTS GSM+ all the first system. Downward RX1 UMTS RX2

 Angle, part of the carrier, another type of transmission TX - MSR TX - single mode

 Downtilt angle; RX on the first antenna - MSR RX - MSR

 UMTS carrier can be independent

Carrier or combined with a second antenna MIMO (Multi-Input

 Multiple-output;

 Out carrier

 3 Both modes are part carrier divided part carrier GSM + part partial carrier GSM +

 Different transmit downtilt subcarriers UMTS TX partial carrier UMTS

 GSM+ all UMTS TX

 RX1 GSM+ all

TX — MSR UMTS RX2

 RX— MSR TX— MSR

 RX - MSR

 An example of transmitting a GSM signal on the first antenna 11 and transmitting a UMTS signal on the second antenna 12 is given above. However, embodiments of the invention are not limited to the specific ones described, and may be applied to other systems as well. Moreover, it is perfectly possible to interchange the transmission channels of different carriers, such as transmitting a UMTS signal on the first antenna 11 and transmitting a GSM signal on the second antenna 12. In addition, the number of applicable modes of the embodiments of the present invention is not limited to two. For three or more types of signals, the concept of the embodiment of the present invention may also be similarly used, such as GUL (GSM/UMTS/LTE). Common frequency band common antenna. These modifications are all within the scope of embodiments of the invention.

 The above mainly describes an example of applying the embodiment of the present invention in the same-band multi-system scenario. Embodiments of the present invention are generally applicable to multi-band scenes. Fig. 6 is a diagram showing another example of a base station system employing the antenna device 20. As shown in Figure 6, the base station system 50 is primarily directed to multi-band scenarios, such as multi-frequency base stations utilizing 1800 MHz and 2100 MHz. In Fig. 6, the same or similar portions as those in Fig. 4 are denoted by the same reference numerals, and detailed description is omitted.

 The multi-band base station master 51 of the base station system 50 includes an 1800 MHz transceiver 52 and a 2100 MHz transceiver 53.

 As shown in Figure 6, the transceivers 52 and 53 of the two bands only support 1T2R (single-shot dual-receipt). Transceivers 52 and 53 are connected to the two feeders via a multi-frequency splitter 54 to share a single antenna feed system. Figure 7 is a schematic block diagram of a 1T2R transceiver 52 or 53 in a frequency band.

In FIG. 7, the intermediate frequency, baseband and ESC control signal processing module 501 is an example of the signal generating unit 220 of FIG. 2, which respectively generates two ESC control signals. In addition, the intermediate frequency, baseband and ESC control signal processing module 501 is also responsible for the intermediate frequency/baseband processing of a system transmit signal and receive signal. The module 502 shown by the dashed box in FIG. 7 is an example of the signal transmission unit 210 of FIG. 2, and transmits power to the first antenna 11 to the first ESC control port 13 (see FIG. 3) corresponding to the first antenna 11. The control signal is modulated to transmit an ESC control signal for the second antenna 12 to a second ESC control port 14 (see FIG. 3) corresponding to the second antenna 12.

 It can be seen from Fig. 6 and Fig. 7 that the transmissions of the two frequency bands are respectively sent to two different polarization channels of one dual-polarized antenna for transmission, and the electric downtilt angle adjustment of different polarization antennas is obtained to obtain the required Downward coverage. The reception of the two frequency bands can share the dual-polarized antenna, and the reception performance is slightly lost due to the difference in the downtilt angle. However, according to network performance simulation and experimental verification, this difference in downtilt angle is acceptable for receiving the main diversity gain combining loss.

 Therefore, according to an embodiment of the present invention, the first antenna 11 and the second antenna 12 may be respectively used to transmit all or part of carriers of signals of at least one frequency band.

 FIG. 8 is a schematic structural diagram of an antenna device 70 according to another embodiment of the present invention. In Fig. 8, the same or similar portions as those in Figs. 1 and 3 are denoted by the same reference numerals. As shown in Fig. 8, the antenna device 70 includes a first antenna 11, a second antenna 12, and a control device 13. The first antenna 11 and the second antenna 12 are collectively covered but have different polarization directions (e.g., +45 degrees and -45 degrees). The control unit 13 is for adjusting the downtilt angles of the first antenna 11 and the second antenna 12, respectively.

 Specifically, as shown by the dashed box in Fig. 8, the control device 13 includes a remote control unit RCU 135 and a switchable phase shift drive unit 136. The RCU 135 is for receiving an ESC control signal S1 or S2 for the first antenna 11 or the second antenna 12 through the ESC control port 71, and generates a drive output based on the ESC control signal S1 or S2. The switchable phase shift drive unit 136 can switchably adjust the downtilt angle of the first antenna 11 or the second antenna 12, respectively, according to the drive output generated by the RCU 135. On the basis of this, optionally, when it is required to simultaneously adjust the downtilt angles of the first antenna 11 and the second antenna 12, the RCU 135 can also receive an ESC control signal for the two antennas, and the switchable drive unit 136 can simultaneously The downtilt angles of the antennas 11 and 12 are adjusted.

 In one embodiment, compared to the phase shift driving units 132 and 134 of FIG. 3, one switch may be added to the switchable phase shift driving unit 136, according to the control object of the ESC control signal (the first antenna 11 or the second The antenna 12) switches the drive output of the RCU 135 to either the first antenna 11 or to the second antenna 12, thereby enabling switchable adjustment of the downtilt angles of the antennas 11 and 12. Alternatively, in the case where it is desired to simultaneously adjust the downtilt angles of the antennas 11 and 12, the switch can switch the drive output of the RCU 135 to simultaneously target the two antennas 11 and 12.

Compared with the embodiment of FIG. 3, in the antenna device 70 of FIG. 8, due to the dual polarized antenna two The polarized antenna does not need to adjust the downtilt angle at the same time, so the two ESC control ports of the dual polarized antenna can be combined into one port (71), and the phase shifting drive unit in the antenna is changed to the switchable mode. Thus, compared to the embodiment of FIG. 3, the antenna device 70 of FIG. 8 can save one RCU unit, further reducing equipment costs.

 The antenna device 70 of Fig. 8 controls the downtilt angles of the two polarized antennas through an ESC control port to achieve different downtilts. In other words, the external presentation of the dual-polarized antenna is no different from the traditional dual-polarized ESC antenna, and there is only one ESC control port. In the networking application, the existing transceiver hardware circuit can be changed without changing the antenna device, and the network performance of the original multi-mode or multi-band base station can be improved by software upgrade. In this case, the signal transmission unit of the transceiver (e.g., 220 of FIG. 2) transmits an ESC control signal for the first antenna 11 or an electric power for the second antenna 12 to an ESC control port 71 of the antenna device 70. Adjust the control signal.

 9 is a schematic flow chart of a method of adjusting an antenna downtilt according to an embodiment of the present invention. The method of Fig. 9 can be applied to the above antenna device 10, 20 or 70. The antenna device includes a first antenna and a second antenna, and the first antenna and the second antenna are shared but have different polarization directions.

 101. Receive an ESC control signal for the first antenna and/or an ESC control signal for the second antenna. For example, in the case of the antenna device 20, the ESC control signals for the first antenna 11 and the second antenna 12 can be received by the two RCUs 131 and 133, respectively. In the case of the antenna device 70, the ESC control signal for the first antenna 11 or the second antenna 12 is received by an RCU 135. At this time, the RCU 135 may receive only one of the ESC control signal for the first antenna 11 and the ESC control signal for the second antenna 12 instead of receiving both at the same time. In another embodiment, optionally, when it is required to simultaneously adjust the downtilt angles of the first antenna 11 and the second antenna 12, one of the ESC control signals for the two antennas may also be received through the RCU 135.

 102. Adjust a downtilt angle of the first antenna according to the ESC control signal for the first antenna, and adjust a downtilt angle of the second antenna according to the ESC control signal for the second antenna. Thus, the downtilt angles of the first antenna and the second antenna are adjusted separately. For example, in the case of the antenna device 20, the two RCUs 131 and 133 respectively generate drive outputs according to the respective received ESC control signals, and drive the two phase shift drive units 132 and 134, respectively, to independently adjust the two antennas 11 and 12 downtilt angle. The operations of the RCU 131 and the phase shift driving unit 132 and the operations of the RCU 133 and the phase shift driving unit 134 may be performed partially or completely simultaneously, or only one of them may be performed, or may be performed sequentially.

In the case of the antenna device 70, the switchable phase shift drive unit 136 can switchably adjust the downtilt angles of the two antennas 11 and 12, respectively, according to the drive output of the RCU 135. Switchable mobile drive list Element 136 can be electrically controlled only for one of antennas 11 and 12. Alternatively, the switchable drive unit 136 can also adjust the downtilt angles of the antennas 11 and 12 simultaneously.

 In this way, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas that form the common dual-polarized antenna, so that the two antennas can not have a common downtilt angle, thereby supporting different frequency bands or different modes of the same frequency band using different downtilt angles. . Since only one dual-polarized antenna is needed without additional spikes, equipment costs are reduced.

 10 is a schematic flow chart of a method of adjusting an antenna downtilt according to an embodiment of the present invention. The method of Figure 10 is performed by a transceiver (e.g., transceiver 200 of Figure 2, transceiver 28 of Figures 4-5, transceiver 52 or 53 of Figures 6-7).

 111. Generate an ESC control signal for the first antenna and/or an ESC control signal for the second antenna. The first antenna and the second antenna belong to the same antenna device, and the first antenna and the second antenna are shared but have different poles. Direction.

 112, transmitting an ESC control signal for the first antenna and/or an ESC control signal for the second antenna to the antenna device, so that the antenna device adjusts the downtilt angle of the first antenna according to the ESC control signal for the first antenna and/or Or adjusting the downtilt angle of the second antenna according to the ESC control signal for the second antenna.

 In this way, the embodiment of the present invention can separately adjust the downtilt angles of the two antennas constituting the common dual-polarized antenna, so that the two antennas can not have a common downtilt angle, thereby supporting different frequency bands or different frequency bands in the same frequency band. inclination. Since only one dual-polarized antenna is needed without additional antenna feeds, equipment costs are reduced.

 At 112, an ESC control signal for the first antenna can be transmitted to the first ESC control port of the antenna device, and an ESC control signal for the second antenna is transmitted to the second ESC control port of the antenna device (eg, see The embodiment of Figures 3-7). Alternatively, at 112, an ESC control signal for the first antenna or an ESC control signal for the second antenna may be transmitted to an ESC control port of the antenna device (see, for example, the embodiment of Fig. 8).

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Professionals can use different methods to implement the described functions for each specific application, but this implementation should not be considered super The scope of the invention is intended.

 A person skilled in the art can clearly understand that, for the convenience of the description and the cleaning process, the specific process of the foregoing method may refer to the corresponding process in the foregoing device embodiment, and details are not described herein again.

 In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

 The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.

 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software function unit.

 The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. .

 The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request
 An antenna device, comprising:
 First antenna
 a second antenna that is shared with the first antenna but has different polarization directions;
 a control device, configured to receive an ESC control signal for the first antenna and/or an ESC control signal for the second antenna, and adjust a downtilt angle of the first antenna according to the ESC control signal for the first antenna and/or Or adjusting the downtilt angle of the second antenna according to the electrical control signal for the second antenna.
 2. The antenna device according to claim 1, wherein the control device comprises: a remote control unit, configured to receive an ESC control signal for the first antenna or the second antenna through an ESC control port And generating a driving output according to the ESC control signal;
 The switchable phase shift driving unit is configured to switchably adjust the downtilt angle of the first antenna or the second antenna respectively according to a driving output generated by the remote control unit.
 The antenna device according to claim 1, wherein the control device comprises: a first remote control unit, configured to receive a first electrical tone for the first antenna through a first electrical control port a control signal, and generating a first driving output according to the first electrical control signal; a first phase shift driving unit, adjusting a downtilt angle of the first antenna according to the first driving output;
 The second remote control unit is configured to receive a second electrical control signal for the second antenna through the second electrical control port, and generate a second driving output according to the second electrical control signal; The driving unit adjusts a downtilt angle of the second antenna according to the second driving output.
 4. The antenna device according to claim 1, wherein the first antenna and the second antenna are respectively used to transmit all or part of carriers of signals of at least one standard or frequency band.
 The antenna device according to claim 1, wherein the first antenna is for transmitting all carriers of the first system, and the second antenna is for transmitting all carriers of the second system.
 The antenna device according to claim 1, wherein the first antenna is configured to transmit a first partial carrier and a second partial carrier, and the second antenna is configured to transmit a third partial carrier and a fourth partial carrier. ,
 The first partial carrier and the third partial carrier belong to the first mode, and the second partial carrier and the fourth partial carrier belong to the second mode.
The antenna device according to claim 1, wherein the first antenna is used for transmitting All carriers of the first system and a first part of the carrier of the second mode are transmitted, and the second antenna is used to transmit the second part of the carrier of the second mode.
 The antenna device according to any one of claims 5-7, wherein the first antenna or the second antenna is further configured to receive signals of the first system and the second system.
 The antenna device according to any one of claims 5 to 7, wherein the first system and the second system use the same or different frequency bands.
 10. A transceiver, characterized in that it comprises:
 a signal generating unit, configured to generate an ESC control signal for the first antenna and/or an ESC control signal for the second antenna, where the first antenna and the second antenna belong to the same antenna device, and the first antenna Co-covering with the second antenna but having different polarization directions;
 a signal transmission unit, configured to transmit the electrical control signal for the first antenna and/or the electrical control signal for the second antenna to the antenna device, so that the antenna device is configured according to the power for the first antenna The tuning control signal adjusts a downtilt angle of the first antenna and/or adjusts a downtilt angle of the second antenna according to the electrical control signal for the second antenna.
 11. The transceiver of claim 10, wherein:
 Transmitting, by the signal transmission unit, the electrical control signal for the first antenna to a first electrical control port of the antenna device, and transmitting the second antenna to a second electrical control port of the antenna device Electric control signal; or
 The signal transmission unit transmits the ESC control signal for the first antenna or the ESC control signal for the second antenna to an ESC control port of the antenna device.
 12. A base station system, comprising:
 An antenna device according to any one of claims 1-9, and / or,
 A transceiver as claimed in claim 10 or 11.
 A method for adjusting an antenna device, the antenna device comprising a first antenna and a second antenna, wherein the first antenna and the second antenna are shared but have different polarization directions, and the method includes:
 Receiving an ESC control signal for the first antenna and/or an ESC control signal for the second antenna; adjusting a downtilt angle of the first antenna according to the ESC control signal for the first antenna and/or according to the The ESC control signal of the two antennas adjusts the downtilt angle of the second antenna.
 14. The method of claim 13 wherein:
Adjusting the downtilt angle of the first antenna according to the ESC control signal for the first antenna includes: Generating, by the first remote control unit, a first driving output according to the electrical control signal for the first antenna;
 Adjusting a downtilt angle of the first antenna according to the first driving output by a first phase shift driving unit,
 Adjusting the downtilt angle of the second antenna according to the ESC control signal for the second antenna includes: generating, by the second remote control unit, the second driving output according to the ESC control signal for the second antenna;
 The downtilt angle of the second antenna is adjusted according to the second drive output by the second phase shift driving unit.
 The method according to claim 13, wherein the downtilt angle of the first antenna is adjusted according to the ESC control signal for the first antenna and/or according to the ESC control signal for the second antenna The downtilt angle of the second antenna includes:
 Generating a drive output according to the ESC control signal for the first antenna or the ESC control signal for the second antenna by a remote control unit;
 The downtilt angle of the first antenna or the second antenna is switchably adjusted according to a driving output generated by the remote control unit by a switchable phase shift driving unit.
 16. A method of adjusting an antenna device, comprising:
 Generating an ESC control signal for the first antenna and/or an ESC control signal for the second antenna, the first antenna and the second antenna belonging to the same antenna device, the first antenna and the second antenna Common shield but with different polarization directions;
 Transmitting the ESC control signal for the first antenna and/or the ESC control signal for the second antenna to the antenna device, so that the antenna device adjusts the first according to the ESC control signal for the first antenna The downtilt angle of the antenna and/or the downtilt angle of the second antenna is adjusted according to the electrical control signal for the second antenna.
 17. The method according to claim 16, wherein transmitting the ESC control signal for the first antenna and/or the ESC control signal for the second antenna to the antenna device comprises: The first electrical control port of the device transmits the electrical control signal for the first antenna, and transmits the electrical control signal for the second antenna to the second electrical control port of the antenna device; or
 The electrical regulation signal for the first antenna or the electrical control signal for the second antenna is transmitted to an ESC control port of the antenna device.
PCT/CN2011/074042 2011-05-13 2011-05-13 Antenna device, base station system, and method for tuning antenna device WO2011124180A2 (en)

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CN2011800004736A CN102273013A (en) 2011-05-13 2011-05-13 The method of the antenna device, and adjusting the antenna system, the base station equipment
PCT/CN2011/074042 WO2011124180A2 (en) 2011-05-13 2011-05-13 Antenna device, base station system, and method for tuning antenna device

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