WO2010133029A1 - 通信天线自动定向装置、方法 - Google Patents
通信天线自动定向装置、方法 Download PDFInfo
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- WO2010133029A1 WO2010133029A1 PCT/CN2009/071892 CN2009071892W WO2010133029A1 WO 2010133029 A1 WO2010133029 A1 WO 2010133029A1 CN 2009071892 W CN2009071892 W CN 2009071892W WO 2010133029 A1 WO2010133029 A1 WO 2010133029A1
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- WIPO (PCT)
- Prior art keywords
- base station
- directional antenna
- antenna
- current
- target base
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/125—Means for positioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Definitions
- the present invention relates to the field of communications, and in particular, to a communication antenna automatic orientation apparatus and method.
- a specialized cellular wireless communication network has been able to provide services for aircraft, so that people can also obtain popular and economical mobile communication services on the aircraft, including voice services and packet data services.
- 1 is a schematic diagram of a ground-based base station covering an aircraft in the related art. As shown in FIG. 1, the basic mode of implementation is to establish a certain number of properly arranged base station networks on the ground, the antenna is tilted to cover the civil aviation domain, and the mobile communication terminal is installed on the aircraft. Its antenna communicates with the ground base station.
- the antenna of a mobile communication terminal installed in an aircraft generally employs a wide-caliber omnidirectional antenna.
- the gain of such an antenna is small, and the signal of the primary serving base station cannot be effectively amplified, and the interference signal of the adjacent base station cannot be suppressed.
- the omnidirectional antenna can meet the basic communication quality requirements according to the standard wireless planning design, the capacity and coverage of the system are still relatively lacking, especially in the application of high-speed packet data services.
- CDMA Code Division Multiple Access
- 3G 3rd Generation
- the download rate of the physical layer of 2.4 Mbps requires a signal-to-noise ratio of at least greater than l ldB, and the rate of 921 kbps also requires a signal-to-noise ratio of at least greater than 2 dB.
- the signal power of the base station is close to the total power of the neighboring base station signals, and even smaller than the total power of the adjacent base station signals.
- the forward signal-to-noise ratio is often in the range between 0 dB and -3 dB, and can only achieve a rate of several hundred kbps or less.
- the antenna type has a significant limitation on the ratio of the air area that can achieve a high rate, and the medium and low data rates can only be realized in the soft switching area with a large area ratio.
- Aviation users belong to commercial high-end users, and only the use of ordinary omnidirectional antennas as terminal antennas is a waste of resources for costly terrestrial networks and aviation equipment. In order to make up for the shortcomings of current aircraft cellular communication technology, a solution to the problem is urgently needed.
- the present invention has been made in view of the problems in the related art in which a mobile communication terminal antenna installed in an aircraft is limited in terms of signal quality, system capacity, coverage, and application of high-speed packet data services, and the main object of the present invention is It is to provide a communication antenna automatic orientation apparatus and method to solve at least one of the above problems in the related art.
- a communication antenna automatic orientation device is provided.
- the communication antenna automatic orientation device includes: a target base station geographic storage memory, configured to store a correspondence relationship between the spatial position information of the aircraft on the aeronautical line and the identifier of the target base station, wherein the spatial position information includes: latitude and longitude, altitude a sensor for determining the current spatial position information of the aircraft; an aircraft space orientation sensor for determining the current spatial orientation of the aircraft; a primary controller for determining the current spatial position information, the correspondence, and the current spatial orientation Orienting the target direction of the antenna, and transmitting an instruction carrying the target direction; the automatic antenna orientation system is configured to receive the command, and drive the directional antenna according to the target direction, so that the directional antenna receives the signal of the ground base station in the target direction; An antenna, a signal for omnidirectional reception of a ground base station; a mobile communication terminal for processing a signal received by the wide aperture antenna and a signal received by the directional antenna.
- the spatial position information includes: latitude and longitude, altitude a sensor for determining the current spatial position information of
- the sensor further comprises: a GPS sensor for determining the current latitude and longitude of the aircraft; and an altitude sensor for determining the current altitude of the aircraft.
- the target base station geographic storage is further configured to: store location information of the target base station.
- the main controller specifically includes: an acquiring unit, configured to acquire, according to the corresponding relationship, an identifier of the target base station corresponding to the current spatial location information, and obtain location information of the target base station according to the identifier; and a calculating unit, configured to use the target base station according to the target base station
- the location information, the current spatial location information, and the current spatial orientation are calculated to obtain a target direction; and the sending unit is configured to send the target direction to the automatic antenna orientation system by signaling.
- the automatic antenna orientation system specifically includes: a driver for driving the directional antenna according to a target direction in the command; and a directional antenna for receiving a signal of the ground base station in the target direction.
- the directional antenna is one of the following: a smart day electronically controlling the antenna pattern through the array antenna Wire, electromechanical automatic directional antenna.
- the driver is specifically configured to: when the directional antenna is an electromechanical automatic directional antenna, drive the directional antenna, and when the directional antenna is a smart antenna, generate an antenna pattern to drive the directional antenna.
- the apparatus further comprises: a radome for mitigating the influence of the wind resistance on the directional antenna and the wide aperture antenna.
- a communication antenna automatic orientation device includes: a target base station geographic storage memory, configured to store a correspondence relationship between the spatial position information of the aircraft on the aeronautical line and the identifier of the target base station, wherein the spatial position information includes: latitude and longitude, altitude a sensor for determining the current spatial position information of the aircraft; an aircraft space orientation sensor for determining the current spatial orientation of the aircraft; a primary controller for determining the current spatial position information, the correspondence, and the current spatial orientation Orienting the target direction of the antenna, and transmitting an instruction carrying the target direction; the first automatic antenna orientation system is configured to receive the instruction, and drive the first directional antenna according to the target direction in the instruction, so that the first directional antenna is a signal for receiving a ground base station in a target direction; a second automatic antenna orientation system, configured to receive an instruction, and drive the second directional antenna according to a target direction in the command, so that
- the sensor further comprises: a GPS sensor for determining the current latitude and longitude of the aircraft; and an altitude sensor for determining the current altitude of the aircraft.
- the target base station geographic storage is further configured to: store location information of the target base station.
- the main controller specifically includes: an acquiring unit, configured to acquire, according to the corresponding relationship, an identifier of the current target base station corresponding to the current spatial location information, obtain location information of the current target base station according to the identifier, and obtain the original target base station stored last time. The location information is used by the determining unit to determine whether the current target base station is the same as the original target base station.
- the main controller further includes: a first calculating unit, configured to: according to the location information of the current target base station, the location information of the original target base station, the current spatial location information, and the current spatial orientation, if the determining unit determines to be no Calculating a first target direction pointing to the current target base station and a second target direction pointing to the original target base station; the first sending unit, configured to determine, in the determining unit, In the case of transmitting, the first instruction carrying the first target direction is sent, and the second instruction carrying the second target direction is sent, and the updating module is configured to update the stored information of the original target base station to the current target base station.
- a first calculating unit configured to: according to the location information of the current target base station, the location information of the original target base station, the current spatial location information, and the current spatial orientation, if the determining unit determines to be no Calculating a first target direction pointing to the current target base station and a second target direction pointing to the original target base station
- the first sending unit configured to determine
- the first automatic antenna orientation system specifically includes: a first driver, configured to drive the first directional antenna according to the first target direction in the first instruction; the first directional antenna, used in the first The signal of the current target base station is received in the target direction.
- the second automatic antenna orientation system specifically includes: a second driver for driving the second directional antenna according to the second target direction in the second instruction; and a second directional antenna for using the second target direction The signal of the original target base station is received.
- the main controller further includes: a second calculating unit, configured to calculate, according to the current target base station location information, the current spatial location information, and the current spatial orientation, the current target base station, if the determining unit determines to be YES a second transmitting unit, configured to send, by the determining unit, a target direction by signaling to the first automatic antenna orientation system and the second automatic antenna orientation system, so that the first directional antenna and The second directional antennas are all directed to the current target base station.
- the first directional antenna or the second directional antenna is one of the following: a smart antenna, an electromechanical automatic directional antenna that electrically controls the antenna pattern through the array antenna.
- the first driver is specifically configured to: when the first directional antenna is an electromechanical automatic directional antenna, drive the first directional antenna, and when the first directional antenna is a smart antenna, generate an antenna pattern to drive the first
- the second driver is specifically configured to: when the second directional antenna is an electromechanical automatic directional antenna, drive the second directional antenna, and when the second directional antenna is a smart antenna, generate an antenna pattern to drive the second directional antenna .
- the apparatus further comprises: a radome for mitigating the influence of the wind resistance on the first directional antenna and the second directional antenna.
- the communication antenna automatic orientation device comprises: a target base station geographic storage memory for storing a correspondence relationship between the identification of the target location of the spatial location information of the aircraft on the aeronautical line, wherein the spatial location information includes: latitude and longitude, altitude Sensor used to determine the aircraft Front space position information; aircraft space orientation sensor for determining the current spatial orientation of the aircraft; the main controller, for determining the target direction of the directional antenna according to the current spatial position information, the correspondence relationship, and the current spatial orientation, and transmitting and carrying An instruction with a target direction; an electronically controlled beam smart antenna orientation system for receiving commands, driving the directional antenna according to the target direction, so that the directional antenna receives the signal of the ground base station in the target direction; the mobile communication terminal is used for The signal received by the directional antenna is processed.
- the spatial location information includes: latitude and longitude, altitude Sensor used to determine the aircraft Front space position information
- aircraft space orientation sensor for determining the current spatial orientation of the aircraft
- the main controller for determining the target direction of the directional antenna according to
- the sensor further comprises: a GPS sensor for determining the current latitude and longitude of the aircraft; and an altitude sensor for determining the current altitude of the aircraft.
- the target base station geographic storage is further configured to: store location information of the target base station.
- the main controller specifically includes: an acquiring unit, configured to acquire, according to the corresponding relationship, an identifier of the current target base station corresponding to the current spatial location information, obtain location information of the current target base station according to the identifier, and obtain the original target base station stored last time. The location information is used by the determining unit to determine whether the current target base station is the same as the original target base station.
- the main controller further includes: a first calculating unit, configured to: according to the location information of the current target base station, the location information of the original target base station, the current spatial location information, and the current spatial orientation, if the determining unit determines to be no Calculating a first target direction pointing to the current target base station and a second target direction pointing to the original target base station; the first sending unit, configured to send the first instruction carrying the first target direction if the determining unit determines to be no And sending a second instruction carrying the second target direction; and an updating module, configured to update the storage information of the original target base station to the current target base station.
- a first calculating unit configured to: according to the location information of the current target base station, the location information of the original target base station, the current spatial location information, and the current spatial orientation, if the determining unit determines to be no Calculating a first target direction pointing to the current target base station and a second target direction pointing to the original target base station
- the first sending unit configured to send the first instruction carrying the first
- the electronically controlled beam smart antenna orientation system specifically includes: a driver, configured to drive the first directional antenna according to the first target direction in the first instruction, and according to the second target direction in the second instruction The second directional antenna is driven; the first directional antenna is configured to receive a signal of the current target base station in the first target direction; and the second directional antenna is configured to receive the signal of the original base station in the second target direction.
- the main controller further includes: a second calculating unit, configured to calculate, according to the current target base station location information, the current spatial location information, and the current spatial orientation, the current target base station, if the determining unit determines to be YES a second sending unit, configured to send signaling carrying the target direction, so that the first directional antenna and the second directional antenna are both directed to the current target base station, if the determining unit determines to be YES.
- the apparatus further comprises: a radome for mitigating the influence of the wind resistance on the first directional antenna and the second directional antenna.
- the communication antenna automatic orientation method includes: the main controller acquires current spatial position information of the aircraft from the sensor, and current aircraft space orientation information; and the main controller acquires position information of the current target base station according to the current spatial position information.
- the main controller determines the target direction of the directional antenna according to the current target base station location information, the current spatial location information, the current aircraft spatial orientation information, and transmits the signaling carrying the target direction to the intelligent directional antenna driver; the intelligent directional antenna driver is The command drives the directional antenna to direct the directional antenna to the current target base station.
- the current spatial location information includes: latitude and longitude, altitude.
- the sensor comprises: a GPS sensor, an altitude sensor.
- the acquiring, by the main controller, the location information of the current target base station according to the current spatial location information includes: the primary controller queries the target base station geographic storage memory according to the current spatial location information, and acquires location information of the current target base station, where the target base station geographic storage memory Corresponding relationship between the spatial location information of the aircraft on the aeronautical line and the identity of the target base station.
- the intelligent directional antenna driver drives the directional antenna according to the instruction: when the directional antenna is an electromechanical automatic directional antenna, the intelligent directional antenna driver directly drives the directional antenna, and when the directional antenna is a smart antenna, the intelligent directional antenna driver generates an antenna pattern To drive the directional antenna.
- the method further includes: determining, by the primary controller, whether the current target base station is the same as the stored original target base station.
- the main controller determines the target direction of the directional antenna, and sends the signaling carrying the target direction to the intelligent directional antenna driver, including: The controller determines, according to location information of the current target base station, location information of the original target base station, current spatial location information, current aircraft spatial orientation information, a first target direction directed to the current target base station and a second target direction directed to the original target base station; The first target direction is carried in the first signaling and sent to the first intelligent directional antenna driver, the second target direction is carried in the second signaling, and sent to the second smart directional antenna driver.
- the intelligent directional antenna driver drives the directional antenna according to the instruction, so that the directional antenna is directed to the current target base station: the first smart directional antenna driver drives the first directional antenna such that the first directional antenna points to the current target base station; The directional antenna driver drives the second directional antenna such that the second directional antenna is directed to the original target base station.
- the method further includes: updating, by the main controller, the storage information of the original target base station to the storage information of the current target base station.
- FIG. 1 is a schematic diagram of a ground station coverage aircraft in the related art
- FIG. 2 is a schematic diagram of a communication antenna automatic orientation device according to a first embodiment of the apparatus according to the present invention
- FIG. 3 is an altitude according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of a communication antenna automatic orientation device according to Embodiment 2 of the present invention
- FIG. 5 is a schematic diagram of a communication antenna automatic orientation device according to Embodiment 3 of the present invention
- 6 is a flow chart of a method for automatically orienting a communication antenna according to an embodiment of the method of the present invention;
- FIG. 1 is a schematic diagram of a ground station coverage aircraft in the related art
- FIG. 2 is a schematic diagram of a communication antenna automatic orientation device according to a first embodiment of the apparatus according to the present invention
- FIG. 3 is an altitude according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of a communication antenna automatic orientation device according to Embodi
- FIG. 7 is a flow diagram of a method for automatically switching a communication antenna according to an embodiment of the method of the present invention.
- Cheng Tu. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT the application of a high-performance directional antenna to an aircraft can improve the quality of cellular mobile communication and system throughput/capacity, meet the needs of market development, and is also a trend of technology development.
- the application of high performance directional antennas to aircraft must address the following issues:
- the smart antenna is required to automatically and quickly search for the direction of the strongest service base station on the ground, it is of course the most ideal solution, but the search angle range is large, the water level is 360 degrees, the vertical plane is close to 180 degrees, close to the hemisphere, now The technology of civil communication in the stage is still far from reaching this level. In the future, it will be difficult to achieve due to the development cost and device volume limitation.
- the present invention provides a communication antenna automatic orientation device.
- the components of the device can be selected in three ways, and the device mainly includes: a main controller, an optimal service base station geographic storage memory, a GPS sensor, Aircraft space orientation sensor, an automatic directional antenna system (including driver and directional antenna), a wide-caliber antenna, or another set of automatic directional antenna systems (including drivers and directional antennas), or an electronically controlled beam smart antenna orientation system ( With driver and directional antenna), streamlined radome.
- a main controller an optimal service base station geographic storage memory
- a GPS sensor Aircraft space orientation sensor
- an automatic directional antenna system including driver and directional antenna
- a wide-caliber antenna or another set of automatic directional antenna systems
- an electronically controlled beam smart antenna orientation system With driver and directional antenna
- the data of the optimal service base station geographic storage memory can be calculated by the cellular communication network simulation software, and can also be corrected according to the aviation test data.
- the optimal service base station geographic storage memory stores the specific latitude and longitude and altitude corresponding to the aeronautical line.
- the GPS sensor, altitude sensor, and carrier space orientation sensor are devices shared with the aircraft to provide input values for calculating the antenna target direction (eg, latitude and longitude, altitude, aircraft space orientation).
- the automatic directional antenna can be a conventional electromechanical automatic directional antenna, or an emerging smart antenna that electronically controls the antenna pattern through the array antenna.
- Embodiment 1 of the present invention provides a communication antenna automatic orientation device according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of a communication antenna automatic orientation device according to Embodiment 1 of the present invention, as shown in FIG.
- the communication antenna automatic orientation device of the embodiment of the invention includes: a target base station geographic storage memory 20 (ie, the above-mentioned optimal service base station geographic storage memory), a sensor (including a GPS sensor 21, an altitude sensor 22), an aircraft space orientation sensor 23, and a main Controller 24, automatic antenna orientation system (not shown) (including smart directional antenna driver 250, directional antenna 251), wide aperture antenna 26, mobile communication terminal 27, radome 28.
- a target base station geographic storage memory 20 ie, the above-mentioned optimal service base station geographic storage memory
- a sensor including a GPS sensor 21, an altitude sensor 22
- an aircraft space orientation sensor 23 an aircraft space orientation sensor 23
- main Controller 24 automatic antenna orientation system (not shown) (including smart directional antenna driver 250, directional antenna 251), wide aperture antenna 26, mobile communication terminal 27, radome 28.
- the target base station locating memory 20 is configured to store the correspondence between the spatial location information of the aircraft on the aeronautical line and the identifier of the target base station (ie, the above-mentioned optimal terrestrial base station), and may also store the location information of the target base station, where the spatial location Information includes: latitude and longitude, altitude.
- the network simulation software already exists in the related art, and the ray tracing model suitable for line-of-sight propagation can also improve the accuracy of the simulation result and output the geographical distribution of the optimal service base station.
- the data of the target base station geo-memory 20 can be computed via cellular communication network emulation software.
- a sensor for determining current spatial position information of the aircraft includes a GPS sensor 21 and an altitude sensor 22, wherein the GPS sensor 21 is used to determine the current latitude and longitude of the aircraft; and the altitude sensor 22 is used to determine the current altitude of the aircraft.
- the aircraft space orientation sensor 23 is configured to determine the current spatial orientation of the aircraft; the main controller 24 is connected to the GPS sensor 21, the altitude sensor 22, and the target base station geographic storage memory 20 via the communication line for using the current spatial location information.
- the main controller 24 specifically includes the following units: an acquisition unit for Obtaining, by the relationship, the identifier of the target base station corresponding to the current spatial location information, and acquiring the location information of the target base station according to the identifier; the calculating unit, configured to calculate the target according to the location information of the target base station, the current spatial location information, and the current spatial orientation Direction; a sending unit, configured to send the target direction to the automatic antenna orientation system by signaling.
- the automatic antenna orientation system is connected to the main controller 24, and includes a driver 250 and a directional antenna 251.
- the driver 250 is configured to receive an instruction sent by the main controller 24, and drive the directional antenna according to the target direction, and directional antenna 251.
- the signal of the ground base station is received in the target direction; in practical applications, the smart antenna product adaptively adjusting the antenna direction has already been generated, mainly including two categories: 1.
- An earlier electromechanical method for automatically adjusting the antenna direction ie, , electromechanical automatic directional antenna
- such smart antenna can use gyroscope, microprocessor, servo machine and other hardware to assist in processing control; 2.
- Antenna ie, a smart antenna that electronically controls the antenna pattern through an array antenna.
- the above two types of smart antennas have their own advantages and disadvantages, but they can control the antenna pattern according to the instructions, so that they can aim at the target direction.
- the directional antenna 251 is an electromechanical automatic directional antenna
- the 3-zone actuator 250 can directly move the directional antenna in three regions.
- the driver 250 needs to generate an antenna pattern to drive the directional antenna 251.
- Wide aperture antenna 26 for omnidirectional reception of ground station signals; mobile communication terminal 27 for signals received by wide aperture antenna 26 and directional antenna 251 The received signal is processed.
- the mobile communication terminal 27 already has a product with dual antenna reception, which creates conditions for ensuring the reliability of handover between service areas of the base station.
- the radome 28 is used to circumvent the influence of the wind resistance on the directional antenna and the wide aperture antenna.
- the radome 28 can be a streamlined radome, and the choice of materials requires minimal loss of RF signals.
- the communication antenna automatic orientation device ie, a set of directional antennas and a set of wide-caliber antennas
- the communication antenna automatic orientation device ie, a set of directional antennas and a set of wide-caliber antennas
- the communication antenna automatic orientation device ie, a set of directional antennas and a set of wide-caliber antennas
- the above technical solution is further elaborated below in conjunction with an example of a CDMA2000 lxEV-DO system. It should be noted that the application of the present invention is not limited to the following examples.
- the lxEV-DO system is one of the three mainstream technical systems for international 3G cellular mobile communication. There are mature network simulation software suitable for the system, as long as there are basic wireless parameter information of the ground base station (including latitude and longitude, antenna type, antenna).
- Orientation, antenna hanging height, feeder loss, base station transmit power, etc.), using a suitable line-of-sight propagation model, such as a highly accurate ray tracing model, can output a geographical distribution map of the optimal serving base station, and can be covered by the airspace
- the altitude is layered out of the map.
- the letters A, B, C, etc. respectively represent the optimal coverage base stations of the jurisdiction, namely ground stations A, B, C, and the like.
- the base station covers the boundary. If some ping-pong switching areas appear in the simulation diagram, it can be smoothed by software technology to eliminate the ping-pong phenomenon. If there are measured data of common routes, the simulation results can also be corrected.
- an optimal serving base station geographic storage can be formed.
- the result of each layer of altitude (each base station control area) format is converted into a line vector, only a few common aviation altitudes are required, and storage space is not required.
- the ground base station network can be stable for a long time under normal circumstances.
- the maintenance is simple and convenient, and the following methods can be used: After each maintenance cycle (for example, one day is one cycle), after the aircraft and ground communication are started, the computer software first automatically checks whether the storage version is connected to the ground server. The version is consistent.
- the download is updated; if the download is unsuccessful, the original version is maintained.
- GPS information, aircraft space orientation, and altitude information are basic information for aircraft navigation.
- the relevant sensor is an off-the-shelf device of the aircraft, and no need to add it, as long as the relevant output information is shared to the device through the communication line.
- the main controller can use a well-established microprocessor.
- the directional drive directional drive parameters are also based on the above results and aircraft space.
- the orientation information (horizontal direction angle ⁇ ' / vertical direction angle (3 ') is corrected, and the specific method is addition or subtraction. Therefore, the main controller can judge the output to the automatic directional antenna according to the result obtained above.
- Key instructions Regarding smart directional antennas, both electromechanical and smart beam types have relatively mature products. The key is to comply with The characteristics of the empty application, that is, the small size, the light weight, the wide range of the pattern change, and the cost are also a factor. In combination, the electromechanically driven automatic directional antenna may have an advantage.
- the wide-caliber antenna is an optional component of the present invention, and the wide-caliber antenna can be an omnidirectional antenna. It is recommended to use an antenna with an electric down-tilt function to improve signal reception. lxEV-DO
- the mobile communication terminal has two antenna ports, and the signal received by any one antenna satisfies the quality, and the irrelevance between the two antenna signals also generates diversity reception gain. This feature is to ensure the stability of communication quality and solve the orientation.
- the scheme of switching antennas between serving base stations provides favorable conditions.
- the wind-resistant lining of wind resistance requires low wind resistance, low RF signal loss, small volume, and meets the technical requirements for aircraft installation.
- the forward-drying of the communication terminal by the base station is equivalent to only one primary base station signal for realizing the network coverage, which is equivalent to eliminating most of the soft handover area.
- the data throughput or user capacity of the cellular mobile communication is greatly improved.
- the above technical solution of the embodiment of the present invention is a solution for significantly improving service performance at a low cost, and has a positive effect on the development of the mobile communication service in the aviation market.
- Device Embodiment 2 provides a communication antenna automatic orientation device according to an embodiment of the present invention, and FIG.
- the communication antenna automatic orientation device of the embodiment of the invention includes: a target base station geographic storage memory 40 (ie, the above-described optimal service base station geographic storage memory), a sensor (including a GPS sensor 41, an altitude sensor 42), an aircraft space orientation sensor 43, and a main Controller 44, first automatic antenna orientation system (not shown) (including first driver 450, first directional antenna 451), second automatic antenna orientation system 46 (including second driver 460, second directional antenna 461 movement) Communication terminal 47, radome 48.
- a target base station geographic storage memory 40 is used to store spatial position information of an aircraft on an aeronautical line with a target base station (ie, Corresponding relationship between the identifiers of the above-mentioned optimal ground service base stations, and storing the target The location information of the station, wherein the spatial location information includes: latitude and longitude, altitude.
- the sensor for determining the current spatial location information of the aircraft includes a GPS sensor 41 and an altitude sensor 42, wherein the GPS sensor 41 is used to determine the current state of the aircraft The latitude and longitude sensor 42 is used to determine the current altitude of the aircraft.
- the aircraft space orientation sensor 43 is used to determine the current spatial orientation of the aircraft; the main controller 44 is connected to the GPS sensor 41, the altitude sensor 42, and the target through the communication line.
- the base station geo-memory 40 is connected for the current spatial location information (the current latitude and longitude output by the GPS sensor 41, the current altitude output by the altitude sensor 42), the correspondence (stored in the target base station geo-memory 40), and
- the current spatial orientation (output of the aircraft space toward the sensor 43) determines the target direction of the directional antenna 451 in the automatic antenna orientation system and transmits an instruction carrying the target direction to the driver 450 in the automatic antenna orientation system.
- the main controller 44 may further include: an acquiring unit, configured to acquire, according to the corresponding relationship, an identifier of the current target base station corresponding to the current spatial location information, obtain location information of the current target base station according to the identifier, and acquire the last stored original target base station Position information; a determining unit, configured to determine whether the current target base station is the same as the original target base station. According to the judgment result of the determining unit, the two can be divided into two situations, that is, the first situation, the current target The base station is different from the original target base station; Case 2, the current target base station is the same as the original target base station. Next, the processing of the main controller 44 in the above two cases will be described in detail.
- the first calculating unit is configured to: according to the location information of the current target base station, The location information of the target base station, the current spatial location information, and the current spatial orientation are calculated to obtain a first target direction that points to the current target base station and a second target direction that points to the original target base station.
- the first sending unit is configured to determine whether the determining unit is In the case of transmitting, the first instruction carrying the first target direction is sent, and the second instruction carrying the second target direction is sent, and the updating module is configured to update the stored information of the original target base station to the current target base station.
- the second calculating unit is configured to: according to the location information of the current target base station, the current space, if the determining unit determines that it is YES The location information and the current spatial orientation are calculated to obtain a target direction that is directed to the current target base; the second sending unit is configured to send the target direction to the first automatic antenna orientation system by signaling in the case that the determining unit determines to be The second automatic antenna orientation system is such that both the first directional antenna and the second directional antenna point to the current target base station.
- the communication antenna automatic orientation device further includes: a first automatic antenna orientation system connected to the main controller 44, including a first driver 450, a first directional antenna 451, wherein the first driver 450 is configured to receive an instruction sent by the main controller 44, and drive the first directional antenna 451 according to a target direction in the instruction, where the first directional antenna 451 is configured to receive a signal of the current target base station in a target direction; a second automatic antenna orientation system 46 connected to the main controller 44, including a second driver 460, a second directional antenna 461, wherein the second driver 460 is configured to receive an instruction sent by the main controller 44, and to drive the second directional antenna 461 according to a target direction in the instruction, and the second directional antenna 461 is configured to The signal of the original target base station is received in the target direction; Case 2, in case 2, the driver in the first automatic antenna orientation system and the second automatic antenna orientation system 46 drives the first directional antenna 451 according to the instruction sent by the main controller 44, respectively.
- a first automatic antenna orientation system
- the second directional antenna 461 is configured to point the first directional antenna 451 and the second directional antenna 461 to the current target base station.
- the first directional antenna 451 in the first automatic antenna orientation system or the second directional antenna 461 in the second automatic antenna orientation system 46 is one of the following: a smart antenna electrically controlled by an array antenna, and an electromechanical automatic Directional antenna.
- the first 3-zone actuator 450 directly drives the first directional antenna 451 when the first directional antenna 451 is an electromechanical automatic directional antenna, and generates an antenna pattern when the first directional antenna 451 is a smart antenna.
- the second directional antenna 451 is driven by the second directional antenna 461 when the second directional antenna 461 is an electromechanical automatic directional antenna.
- the antenna When the second directional antenna 461 is a smart antenna, the antenna is generated. The pattern is driven to drive the second directional antenna 461.
- the mobile communication terminal 47 is configured to process signals received by the first directional antenna 451 and the second directional antenna 461.
- the radome 48 is configured to circumvent the influence of the wind resistance on the first directional antenna 451 and the second directional antenna 461.
- the radome 48 can be a streamlined radome, and the choice of materials requires minimal loss of RF signals. It should be noted that the details of the communication antenna automatic orientation device according to the embodiment of the present invention may be referred to the corresponding parts in the foregoing device embodiment 1, and details are not described herein again.
- Embodiment 3 of the present invention provides a communication antenna automatic orientation device according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a communication antenna automatic orientation device according to Embodiment 3 of the present invention, as shown in FIG.
- the communication antenna automatic orientation device of the embodiment of the invention includes: a target base station geographic storage memory 50 (ie, the above-described optimal service base station geographic storage memory), a sensor (including a GPS sensor 51, an altitude sensor 52), an aircraft space orientation sensor 53, and a main Controller 54, electronically controlled beam smart antenna orientation system (including driver 550, first directional antenna 551, second directional antenna 552), mobile communication The terminal 56 and the radome 57.
- the target base station geographic storage 50 is configured to store the correspondence between the identifiers of the spatial location information of the aircraft on the aeronautical line (ie, the above-mentioned optimal terrestrial base station), and may also store the location information of the target base station, where the spatial location information Including: latitude and longitude, altitude.
- a sensor for determining current spatial position information of the aircraft includes a GPS sensor 51 and an altitude sensor 52, wherein the GPS sensor 51 is used to determine the current latitude and longitude of the aircraft; the altitude sensor 52 is used to determine the current altitude of the aircraft.
- the aircraft space orientation sensor 53 is used to determine the current spatial orientation of the aircraft; the main controller 54 is connected to the GPS sensor 51 and the altitude sensor via the communication line.
- the target base station geographic storage 50 is connected for the current spatial location information (the current latitude and longitude output by the GPS sensor 51, the current altitude output by the altitude sensor 52), and the corresponding relationship (the target base station is stored in the geographic storage 50).
- the current spatial orientation (output of the aircraft space toward the sensor 53) determines the target direction of the first directional antenna 551 and the second directional antenna 552 in the electronically controlled beam smart antenna orientation system, and directs the system to the electronically controlled beam smart antenna
- the driver 550 in the middle transmits an instruction carrying the target direction.
- the main controller 54 may further include: an acquiring unit, configured to acquire, according to the corresponding relationship, an identifier of the current target base station corresponding to the current spatial location information, obtain location information of the current target base station according to the identifier, and obtain an original storage original The location information of the target base station; the determining unit is configured to determine whether the current target base station is the same as the original target base station. According to the judgment result of the judging unit, it can be divided into two cases, that is, case 1, the current target base station and the original target base station are different; and in the second case, the current target base station and the original target base station are the same. Next, the processing of the main controller 54 in the above two cases will be described in detail.
- the first calculating unit is configured to, according to the current target base station, if the determining unit determines to be no.
- the location information, the location information of the original target base station, the current spatial location information, and the current spatial orientation are calculated to obtain a first target direction directed to the current target base station and a second target direction directed to the original target base station;
- a first transmitting unit configured to When the determining unit determines to be no, the first command carrying the first target direction is sent, and the second command carrying the second target direction is sent; and the updating module is configured to update the stored information of the original target base station to the current target. Base station.
- the second calculating unit is configured to: according to the location information of the current target base station, the current space, in the case that the determining unit determines YES The location information and the current spatial orientation are calculated to obtain a target direction that is directed to the current target base.
- the second sending unit is configured to send signaling carrying the target direction to make the first orientation if the determining unit determines to be yes.
- the antenna, and the second directional antenna are both directed to the current target base station.
- the communication antenna automatic orientation device according to the embodiment of the present invention further includes: an electronically controlled beam smart antenna orientation system, connected to the main controller 54, including the driver 550, the first directional antenna 551, and the second directional antenna 552.
- the driver 550 is configured to receive the first instruction and the second instruction sent by the main controller 54 and drive the first directional antenna 551 according to the first target direction in the first instruction, according to the second instruction.
- the second target antenna drives the second directional antenna 552
- the first directional antenna 551 is configured to receive a signal of the current target base station in the first target direction
- the second directional antenna 552 is configured to receive in the second target direction.
- the driver 550 receives the command sent by the main controller 54, and drives the first directional antenna 551 and the second directional antenna 552 according to the command, so that the first directional antenna 551 and the second directional antenna 552 are both Point to the current target base station.
- the mobile communication terminal 56 is configured to process signals received by the first directional antenna 551 and the second directional antenna 552.
- the radome 57 is configured to evade the wind resistance against the first directional antenna 551 and the second directional antenna 552. ring.
- the radome 57 can be a streamlined radome, and the choice of materials requires minimal loss of RF signals. It should be noted that the details of the communication antenna automatic orientation device according to the embodiment of the present invention may be referred to the corresponding parts in the foregoing device embodiment 1, and details are not described herein again.
- a communication antenna automatic orientation method including the following processing (step S602 - step S608): Step S602, the main controller acquires current spatial position information of the aircraft from the sensor, and The current aircraft space orientation information; wherein, the current spatial location information includes: latitude and longitude, altitude; the sensor comprises: a GPS sensor, an altitude sensor. Step S604, the main controller acquires the location information of the current target base station according to the current spatial location information. Specifically, in step S604, the primary controller may query the target base station geographic storage according to the current spatial location information to obtain the current target base station.
- the target base station geographic storage is used to store a correspondence between the spatial location information of the aircraft on the aeronautical line and the identity of the target base station.
- the main controller determines the target direction of the directional antenna according to the location information of the current target base station, the current spatial location information, and the current aircraft spatial orientation information, and sends the signaling carrying the target direction to the smart directional antenna driver;
- the intelligent directional antenna driver drives the directional antenna according to the command to direct the directional antenna to the current target base station.
- FIG. 6 is a flow chart of a method for automatically orienting a communication antenna according to an embodiment of the method of the present invention. As shown in FIG. 6, the method includes the following processing:
- the main controller acquires current GPS position and altitude information from the sensor
- the main controller checks the optimal service base station according to the current ontology (aircraft) spatial position information. Memory, obtaining the location of the target base station;
- the main controller calculates the directional antenna target direction according to the current position, the aircraft space orientation and the target base station position, and sends it to the intelligent directional antenna driver;
- the directional antenna driver drives the directional antenna according to the instruction, if it is electromechanical, and forms the antenna pattern if it is beam-controlled, so that the directional antenna faces the target base station.
- the basic steps of automatically adjusting the direction of the directional antenna can be processed according to the above steps. Because the position of the aircraft continues to change, the above steps need to be periodically cycled.
- the optimal service station target base station
- the device in the first embodiment of the apparatus shown in FIG. 2 is used (ie, includes a set of directional antennas and a set) Wide-caliber antennas, no special treatment is required; if the device in the second embodiment (Fig.
- the device in 5) needs to perform a handover process, where the handover process includes the following operations: after the primary controller acquires the location information of the current target base station according to the current spatial location information, it is also required to determine the current target base station and the stored original target base station. Is it the same?
- the main controller determines, according to the current target base station location information, the original target base station location information, the current spatial location information, and the current aircraft space orientation information, a first target direction of the target base station and a second target direction directed to the original target base station; subsequently, the primary controller carries the first target direction in the first signaling and transmits to the first intelligent directional antenna driver, and the second target The direction is carried in the second signaling and sent to the second intelligent directional antenna driver.
- FIG. 7 is a flowchart of a communication antenna automatic orientation method switching process according to an embodiment of the method of the present invention, as shown in FIG. Including the following processing:
- the main controller acquires current GPS position and altitude information from the sensor
- the main controller checks the optimal serving base station memory according to the current body (aircraft) spatial position information to obtain the target base station location; 3. The main controller determines whether the target base station and the stored last (last time) target base station are the same.
- the main controller is based on the current position, the orientation of the aircraft space and the original, The location of the new base station is calculated to point to the target direction of the original and new base stations;
- step 9 10 Update the last target base station storage information to the new base station; for the above step 3, if the target base station and the stored last target base station are the same, indicating that no switching of the serving base station occurs , can be operated as usual, that is, step 9 10;
- the main controller calculates the directional antenna target direction according to the current position, the aircraft space orientation and the target base station position.
- the main controller sends the command to the intelligent directional antenna drivers 0 and 1, so that both directional antennas are oriented.
- Service base station In summary, the control modes shown in Figure 6 and Figure 7 are all one cycle of the periodic cycle.
- the initial cycle can be set to 1 second to 3 seconds.
- the cycle time can be optimized according to the test results to meet the accuracy of the positioning. degree.
- the lxEV-DO mobile communication terminal has two antenna ports. The signal received by any one antenna can satisfy the quality, and the irrelevance between the two antenna signals also produces diversity reception gain. This feature is a solution for ensuring the stability of communication quality and solving the problem of switching between directional antennas in serving base stations.
- the switching control mode shown in Figure 7 ensures that the two directional antennas point to the new and old base stations in the first execution period after the aircraft crosses the coverage boundary of the base station. During this execution period, there is enough time for the mobile terminal to complete the soft. Switching and forward virtual soft handoff.
- the switching cycle time can be optimized according to the test conditions, completely within the control of the main controller software.
- the direction of the directional antenna pointing to the old base station will be switched to point to the new base station, after which both directional antennas point to the new base station.
- the technical solution greatly improves the data throughput or user capacity of the cellular mobile communication by improving the signal to noise ratio of the forward wireless link.
- a simple example is as follows.
- the forward link signal-to-noise ratio is usually -5 ⁇ -3dB.
- CDMA systems it is in a soft-switching state.
- the forward DRC rate of the corresponding cdmalx EV-DO system is about 153.6 kbps.
- the directional antenna with 7dBi gain usually the front-to-back ratio is >15
- the signal of the primary base station is increased by 7 dB while the two adjacent base stations are The signal suppression can reach -7dB, and the forward link signal-to-noise ratio can be increased to more than 5dB, and the non-switching state is achieved, and the corresponding forward DRC rate is not lower than 92 lkbps.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention.
- the present invention can be variously modified and modified. Any modifications, equivalent substitutions, improvements, etc. made therein are intended to be included within the scope of the present invention.
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2009/071892 WO2010133029A1 (zh) | 2009-05-21 | 2009-05-21 | 通信天线自动定向装置、方法 |
CN200980159398.0A CN102428607B (zh) | 2009-05-21 | 2009-05-21 | 通信天线自动定向装置、方法 |
US13/259,319 US8810451B2 (en) | 2009-05-21 | 2009-05-21 | Communication antenna automatic orientation apparatus and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CN2009/071892 WO2010133029A1 (zh) | 2009-05-21 | 2009-05-21 | 通信天线自动定向装置、方法 |
Publications (1)
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WO2010133029A1 true WO2010133029A1 (zh) | 2010-11-25 |
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PCT/CN2009/071892 WO2010133029A1 (zh) | 2009-05-21 | 2009-05-21 | 通信天线自动定向装置、方法 |
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US (1) | US8810451B2 (zh) |
CN (1) | CN102428607B (zh) |
WO (1) | WO2010133029A1 (zh) |
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CN108886668A (zh) * | 2018-06-14 | 2018-11-23 | 北京小米移动软件有限公司 | 信息传输方法及装置 |
EP2869481B1 (en) * | 2011-08-16 | 2019-02-20 | Qualcomm Incorporated | Overlaying an air to ground communication system on spectrum assigned to satellite systems |
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CN104010361B (zh) * | 2013-02-22 | 2018-04-10 | 中兴通讯股份有限公司 | 定位系统和方法 |
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US9681311B2 (en) | 2013-03-15 | 2017-06-13 | Elwha Llc | Portable wireless node local cooperation |
US9608862B2 (en) | 2013-03-15 | 2017-03-28 | Elwha Llc | Frequency accommodation |
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US10103428B2 (en) * | 2013-05-02 | 2018-10-16 | Qualcomm Incorporated | Low cost high performance aircraft antenna for advanced ground to air internet system |
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US9515708B2 (en) | 2013-07-09 | 2016-12-06 | Symbol Technologies, Llc | Context aware multiple-input and multiple-output antenna systems and methods |
US9065497B2 (en) | 2013-07-09 | 2015-06-23 | Symbol Technologies, Llc | Context aware multiple-input and multiple-output antenna systems and methods |
US20150296386A1 (en) * | 2014-04-15 | 2015-10-15 | Eden Rock Communications, Llc | System and method for spectrum sharing |
US10117043B2 (en) | 2014-09-22 | 2018-10-30 | Symbol Technologies, Llc | Serially-connected bluetooth low energy nodes |
JP6510677B2 (ja) | 2015-12-28 | 2019-05-08 | Kddi株式会社 | 飛行体制御装置、飛行体、飛行許可空域設定装置、飛行体制御方法及びプログラム |
KR102437149B1 (ko) * | 2016-11-30 | 2022-08-26 | 한국전자통신연구원 | 밀리미터파 기반의 무선망 기술을 무인 비행체에 적용하는 방법 및 장치, 이를 이용한 무인 비행체의 작동 방법, 그리고 이를 이용한 통신 방법 |
WO2019000345A1 (zh) * | 2017-06-29 | 2019-01-03 | 深圳市大疆创新科技有限公司 | 控制方法、无人机和计算机可读存储介质 |
WO2019044635A1 (ja) * | 2017-08-31 | 2019-03-07 | 三菱電機株式会社 | 通信装置 |
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CN112152656B (zh) * | 2020-08-21 | 2021-12-14 | 浙江卓盛科技有限公司 | 一种智能天线系统 |
CN113596406B (zh) * | 2021-07-30 | 2024-02-27 | 杭州海康威视数字技术股份有限公司 | 具有定向天线可转动的监控设备 |
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Also Published As
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CN102428607A (zh) | 2012-04-25 |
US8810451B2 (en) | 2014-08-19 |
CN102428607B (zh) | 2014-09-10 |
US20120056784A1 (en) | 2012-03-08 |
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