WO2015067152A1 - Système d'antenne, antenne et station de base - Google Patents

Système d'antenne, antenne et station de base Download PDF

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Publication number
WO2015067152A1
WO2015067152A1 PCT/CN2014/090174 CN2014090174W WO2015067152A1 WO 2015067152 A1 WO2015067152 A1 WO 2015067152A1 CN 2014090174 W CN2014090174 W CN 2014090174W WO 2015067152 A1 WO2015067152 A1 WO 2015067152A1
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WO
WIPO (PCT)
Prior art keywords
antenna
auxiliary
main
antenna device
processing module
Prior art date
Application number
PCT/CN2014/090174
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English (en)
Chinese (zh)
Inventor
赵建平
王琳琳
马晓慧
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华为技术有限公司
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Publication of WO2015067152A1 publication Critical patent/WO2015067152A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0825—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection with main and with auxiliary or diversity antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to an antenna system, an antenna, and a base station.
  • An antenna system is a system that uses electromagnetic waves to transmit information to realize reception and transmission of wireless communication signals.
  • a current technical solution for improving system capacity is to use a multi-column small-space array antenna, which is characterized by using a small-space array antenna to split a single beam of signals into multiple beams, thereby realizing space division multiple access, that is, multi-user.
  • Parallel transmission greatly increases system capacity.
  • the multi-column small-interval array antenna does not support the wide beam, and the basic coverage cannot be guaranteed; and because of the broadband characteristics of the antenna array, the beam quality of the high frequency band is deteriorated, and the multi-system integration requirement cannot be economically satisfied.
  • Embodiments of the present invention provide an antenna system, an antenna, and a base station, which can improve basic capacity while improving system capacity.
  • an embodiment of the present invention provides an antenna system, including: a main antenna device, a secondary antenna device, and a baseband processing module;
  • the main antenna device is connected to the baseband processing module for forming a main beam, and receives and transmits the control signal and the service signal within the main beam coverage under the control of the baseband processing module;
  • the auxiliary antenna device is connected to the baseband processing module, and is configured to form a secondary beam, and receive and transmit the service signal within the auxiliary beam coverage under the control of the baseband processing module;
  • the baseband processing module is configured to control the primary antenna device to receive and transmit the control signal and the service signal within the coverage of the main beam, and control the auxiliary antenna device to receive and transmit the service signal within the coverage of the auxiliary beam.
  • the primary antenna device includes M columns of the first antenna array, M is an integer greater than or equal to 1; the first antenna array includes L polarization directions, L An integer greater than or equal to 1; the first antenna array of the M column is connected to the M ⁇ L main antenna transceiver channels; the first antenna array is connected to the baseband processing module for controlling the main beam coverage under the control of the baseband processing module Receive and transmit control signals and service signals.
  • the primary antenna device includes one column of the first antenna array, the first antenna array includes two polarization directions, and the main antenna device further includes two Main antenna transceiver channel.
  • the secondary antenna device includes M columns of second antenna arrays, M is an integer greater than 1; the second antenna array includes L polarization directions, L is An integer greater than or equal to 1; the auxiliary antenna device further includes L auxiliary beam forming networks, each of the auxiliary beam forming networks is an N-drive M beam forming network, and each N-drive M beam forming network acts on the second antenna array
  • the same polarization array forms N auxiliary beams, each N-drive M beam forming network is connected to N auxiliary antenna transceiver channels, N is an integer greater than 1;
  • the second antenna array is connected with the baseband processing module for use in the baseband processing module Under control, the service signal is received and transmitted within the secondary beam coverage.
  • the secondary antenna device includes three columns of second antenna arrays, the second antenna array includes two polarization directions, and the secondary antenna device further includes two 2 antennas.
  • Driving a 3 beam forming network each 2 drive 3 beam forming network is connected to 2 auxiliary antenna transceiver channels; or, the auxiliary antenna device includes 4 columns of second antenna arrays, and the second antenna array includes 2 polarization directions, in the auxiliary antenna device It also includes two 2WD 4 beamforming networks, each of which is connected to 2 auxiliary antenna transceiver channels.
  • the primary antenna device and the secondary antenna device correspond to the same M-column third antenna array, and the third antenna array includes L polarization directions, and M is greater than An integer of 1, L is an integer greater than or equal to 1; the primary antenna device and the secondary antenna device correspond to the same L beamforming networks, each beamforming network is an N-drive M beamforming network, and each N-drive M beamforming network The same-polarized array acting in the third antenna array forms N auxiliary beams, each N-drive M beam forming network is connected to N antenna transceiver channels, N is an integer greater than 1; for each polarization direction, N antennas The transceiver channel is used to open or close under the control of the baseband processing module to select the secondary beam; for each polarization direction, the N antenna transceiver channels are also used for receiving and transmitting signals under the control of the baseband processing module.
  • the third antenna array is configured to receive and transmit control signals and service signals within the coverage of the main beam, and/or receive and transmit the service signals within the coverage of the auxiliary beam.
  • the L ⁇ N antenna transceiver channels are further configured to correct received and transmitted signals, so that L ⁇ N antenna transceiver channels receive and transmit.
  • the amplitude of the signal changes in phase.
  • the length of the connection cable between the N antenna transceiver channels and the N-drive M beamforming network is the same for each polarization direction.
  • the baseband processing module is specifically configured to: when the reference signal receives the beam with the largest RSRP as the primary beam, if the primary beam is between the primary beam and the largest secondary beam of the RSRP. If the absolute value of the RSRP difference is less than the first set threshold, and the number of multiplexable secondary beam set elements is greater than 1, the service channel covered by the main beam with the largest RSRP is switched to the secondary beam cover with the largest RSRP.
  • the absolute value of the RSRP difference between the secondary beam of the reusable auxiliary beam set and the secondary beam of the RSRP maximum auxiliary beam is greater than the first Second, set the secondary beam of the threshold.
  • an embodiment of the present invention provides an antenna, including a main antenna device and a secondary antenna device;
  • a primary antenna device for forming a main beam and for receiving and transmitting control signals and service signals within a main beam range under control of a baseband processing module of the base station; a secondary antenna device for forming a secondary beam, and for The service signal is received and transmitted within the secondary beam coverage under the control of the baseband processing module.
  • the primary antenna device includes M columns of the first antenna array, M is an integer greater than or equal to 1; the first antenna array includes L polarization directions, and L is greater than or equal to An integer of 1; the first antenna array of the M column is connected to the M ⁇ L main antenna transceiver channels; the first antenna array is connected to the baseband processing module for receiving and transmitting within the coverage of the main beam under the control of the baseband processing module Control signals and business signals.
  • the primary antenna device includes one column of the first antenna array, the first antenna array includes two polarization directions, and the main antenna device further includes two Main antenna transceiver channel.
  • the secondary antenna device includes M columns of second antenna arrays, M is an integer greater than 1; the second antenna array includes L polarization directions, L is An integer greater than or equal to 1; the auxiliary antenna device further includes L auxiliary beam forming networks, each of the auxiliary beam forming networks is an N-drive M beam forming network, and each N-drive M beam forming network acts on the second antenna array
  • the same polarization array forms N auxiliary beams, each N-drive M beam forming network is connected to N auxiliary antenna transceiver channels, N is an integer greater than 1;
  • the second antenna array is connected with the baseband processing module for use in the baseband processing module Under control, the service signal is received and transmitted within the secondary beam coverage.
  • the secondary antenna device includes three columns of second antenna arrays, the second antenna array includes two polarization directions, and the secondary antenna device further includes two 2 antennas.
  • Driving a 3 beam forming network each 2 drive 3 beam forming network is connected to 2 auxiliary antenna transceiver channels; or, the auxiliary antenna device includes 4 columns of second antenna arrays, and the second antenna array includes 2 polarization directions, in the auxiliary antenna device It also includes two 2WD 4 beamforming networks, each of which is connected to 2 auxiliary antenna transceiver channels.
  • the primary antenna device and the secondary antenna device correspond to the same M-column third antenna array, and the third antenna array includes L polarization directions, and M is greater than An integer of 1, L is an integer greater than or equal to 1; the primary antenna device and the secondary antenna device correspond to the same L beamforming networks, each beamforming network is an N-drive M beamforming network, and each N-drive M beamforming network
  • the same-polarized array acting in the third antenna array forms N auxiliary beams, each N-drive M beam forming network is connected to N antenna transceiver channels, N is an integer greater than 1; for each polarization direction, N antennas
  • the transceiver channel is used to open or close under the control of the baseband processing module to select the secondary beam; for each polarization direction, the N antenna transceiver channels are also used for receiving and transmitting signals under the control of the baseband processing module. Amplitude and phase weighting to weight N auxiliary beams into one main beam; third antenna array for receiving
  • the L ⁇ N antenna transceiver channels are further configured to: correct the received and transmitted signals, so that the L ⁇ N antenna transceiver channels receive and The amplitude of the transmitted signal changes in phase.
  • the length of the connection cable between the N antenna transceiver channels and the N-drive M beamforming network is the same.
  • an embodiment of the present invention provides a base station, including: a baseband processing module;
  • the baseband processing module is configured to control the main antenna device in the antenna to receive and transmit the control signal and the service signal in the main beam range; and the auxiliary antenna device in the control antenna receives and transmits the service signal in the auxiliary beam coverage.
  • the baseband processing module is specifically configured to: when the reference signal receives the beam with the largest RSRP power as the primary beam, if the RSRP difference between the primary beam and the largest secondary beam of the RSRP is absolute If the value is smaller than the first set threshold, and the number of multiplexable auxiliary beam set elements is greater than 1, the service channel covered by the main beam with the largest RSRP is switched to the secondary beam cover with the largest RSRP.
  • the absolute value of the RSRP difference between the secondary beam in the secondary beam set and the secondary beam corresponding to the largest RSRP is larger than Second, set the secondary beam of the threshold.
  • the antenna system, the antenna, and the base station provided by the embodiments of the present invention include a main antenna device, a secondary antenna device, and a baseband processing module.
  • the main antenna device is connected to the baseband processing module for forming a main beam, and receives and transmits control signals and service signals within the main beam coverage under the control of the baseband processing module;
  • the auxiliary antenna device is connected to the baseband processing module for forming The auxiliary beam receives and transmits the service signal within the auxiliary beam coverage under the control of the baseband processing module;
  • the baseband processing module is configured to control the primary antenna device to receive and transmit the control signal and the service signal within the main beam coverage, and control the auxiliary antenna
  • the device receives and transmits traffic signals within the secondary beam coverage.
  • the control signal is transmitted and received through the main beam, and the service signal is transmitted and received through the main beam and the auxiliary beam to improve the capacity of the system while ensuring basic coverage.
  • FIG. 1 is a schematic structural diagram of an antenna system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an antenna system according to Embodiment 2 of the present invention.
  • FIG. 3 is a horizontal diagram of a main antenna beam formed by a main antenna device according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a 2-drive 3 beamforming network of a secondary antenna according to Embodiment 2 of the present invention.
  • FIG. 5 is a horizontal diagram of a secondary antenna beam formed by a secondary antenna device according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of an antenna system according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic structural diagram of a 2-drive 4 beamforming network of a secondary antenna according to Embodiment 3 of the present invention.
  • FIG. 8 is a horizontal cross-sectional view of a secondary beam of a secondary antenna device according to Embodiment 3 of the present invention.
  • FIG. 9 is a schematic structural diagram of an antenna system according to Embodiment 4 of the present invention.
  • Embodiment 10 is a horizontal pattern of a simulated main beam according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic structural diagram of an antenna system according to Embodiment 5 of the present invention.
  • FIG. 12 is a horizontal diagram of a simulated main beam according to Embodiment 5 of the present invention.
  • FIG. 13 is a schematic structural diagram of an antenna according to Embodiment 6 of the present invention.
  • FIG. 14 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
  • FIG. 1 is a schematic structural diagram of an antenna system according to an embodiment of the present invention.
  • the antenna system 11 provided by the present invention includes: a main antenna device 101, a secondary antenna device 102 and a baseband processing module 103;
  • the main antenna device 101 is connected to the baseband processing module 103 for forming a main beam, and receives and transmits control signals and coverage within the main beam coverage under the control of the baseband processing module 103.
  • the auxiliary antenna device 102 is connected to the baseband processing module 103 for forming a secondary beam, and receives and transmits a service signal within the secondary beam coverage under the control of the baseband processing module 103;
  • the baseband processing module 103 is configured to control the primary antenna device 101 to receive and transmit control signals and service signals within the coverage of the main beam, and control the secondary antenna device 102 to receive and transmit service signals within the secondary beam coverage.
  • the main antenna device 101 is mainly used to complete the basic coverage, and the auxiliary antenna device 102 is used to increase the capacity.
  • the baseband processing module 103 is mainly configured to control the primary antenna device 101 to transmit and receive control signals and service signals within the coverage of the main beam.
  • the baseband processing module 103 is further configured to control the secondary antenna device 102 to transmit and receive service signals within the secondary beam coverage.
  • the primary antenna device 101 and the secondary antenna device 102 may respectively include respective antenna arrays and transceiver channels, and the secondary antenna device further includes a beamforming network.
  • the transceiver channel of the primary antenna device 101 can select the primary beam under the control of the baseband processing module 103.
  • the beamforming network and the transceiver channel of the secondary antenna device 102 can be formed and selected by the baseband processing module 103.
  • the primary antenna device 101 and the secondary antenna device 102 may correspond to the same antenna array, the beamforming network, and the transceiver channel.
  • the beamforming network and the transceiver channel may be in the baseband processing module 103.
  • the auxiliary beam is formed and selected under the control and simulated to form the main beam.
  • the primary antenna device 101 and the secondary antenna device 102 can each include a respective antenna array and transceiver channel, as shown in FIG. 1, the primary antenna device 101 can be comprised of a primary antenna array 1011 and a primary antenna transceiver channel group 1012.
  • the main antenna transceiver channel group is connected to the baseband processing module, and receives and transmits control signals within the main beam coverage under the control of the baseband processing module.
  • the secondary antenna device 102 is composed of a secondary antenna array 1021, a secondary beam forming network 1022, and a secondary antenna transceiver channel group 1023.
  • the main antenna array 1011 has the ability to support multiple frequency bands. It may be an array of M columns, where M is an integer greater than or equal to 1, the polarization direction of the array may be L, and L is an integer greater than or equal to 1.
  • M is an integer greater than or equal to 1
  • L is an integer greater than or equal to 1.
  • Each of the primary antenna transceiver channel groups 1012 of the primary antenna corresponds to one polarization direction; the primary antenna transceiver channel group 1012 corresponding to each polarization direction of the primary antenna array 1011 includes M primary antenna transceiver channels.
  • the M-column first antenna array is connected to the M main antenna transceiver channels; when the main antenna array 1011 is multi-polarized, that is, L>1, M columns.
  • the first antenna array is connected to M ⁇ L main antenna transceiver channels.
  • the auxiliary antenna array 1021 may also have a single-column or multi-column structure and may be single-polarized or multi-polarized. It is assumed that the auxiliary antenna array 1021 is in M columns, where M is an integer greater than 1, the polarization direction of the array may be L, L is an integer greater than or equal to 1; each secondary antenna transceiver channel group 1023 of the secondary antenna corresponds to one polarization There are a total of L directions.
  • the auxiliary antenna transceiver channel group 1023 corresponding to each polarization direction of the array includes N transceiver channels, and N is an integer greater than 1.
  • the auxiliary antenna device 102 further includes L auxiliary beam forming networks 1022, each of the auxiliary beam forming networks 1022 is an N-drive M beam forming network, and each N-drive M beam forming network acts on the same-polarized array in the second antenna array.
  • N auxiliary beams each N-drive M beam forming network is connected to N auxiliary antenna transceiver channels; N auxiliary antenna transceiver channels corresponding to each polarization direction are used to be turned on or off under the control of the baseband processing module, thereby The auxiliary beam is selected.
  • the primary antenna device 101 and the secondary antenna device 102 may also correspond to the same M-column antenna array, and the M-column antenna array includes L.
  • Polarization direction M is an integer greater than 1
  • L is an integer greater than or equal to 1; the antenna array can be used to receive and transmit control signals and service signals within the main beam coverage, and/or in the auxiliary beam Receive and transmit service signals within coverage.
  • each beamforming network is an N-drive M beamforming network
  • each N-drive M beamforming network is connected to N antenna transceiver channels, where N is an integer greater than one.
  • N antenna transceiving channels corresponding to each polarization direction are used to be turned on or off under the control of the baseband processing module to select the auxiliary beam;
  • L ⁇ N antenna transceiving channels are also used to receive and transmit signals. Correcting so that the amplitude and phase changes of the signals received and transmitted by the L ⁇ N antenna transceiver channels are consistent, and the length of the connection cable between each antenna transceiver channel and the N-drive M beamforming network is consistent;
  • the N antenna transmission and reception channels in the polarization direction are also used for weighting and phase weighting of signals received and transmitted under the control of the baseband processing module, so that N auxiliary beams formed by the N-drive M beamforming network are weighted and combined. Main beam.
  • the baseband processing module 103 can transmit according to the pilot support capability of the antenna system and the user signal.
  • Power and reference signal receiving power (RSRP) and other factors are used to control the antenna array of the main antenna device to receive and transmit control signals and service signals within the main beam coverage, and the antenna array for controlling the auxiliary antenna device is supplemented Receive and transmit traffic signals within the beam coverage.
  • RSRP reference signal receiving power
  • the elements in the set are the secondary beam with the largest RSRP in the secondary beam and the secondary beam with the absolute value of the RSRP difference between the secondary beam and the largest secondary beam of the RSRP being greater than the first set threshold.
  • the absolute value of the RSRP maximum beam is the primary beam
  • the absolute value of the difference between the primary beam and the largest secondary beam of the RSRP is less than the second set threshold, and the number of multiplexable auxiliary beam elements is greater than 1
  • the baseband The processing module 103 can switch the traffic channel covered by the main beam of the RSRP to the secondary beam coverage of the largest RSRP.
  • the primary antenna device under the control of the baseband processing module, receives and transmits control signals and service signals within the coverage of the primary beam; the secondary antenna device receives and transmits the service signals within the coverage of the secondary beam.
  • the control signal is sent and received through the main beam, and the service signal is transmitted and received in the main beam and the auxiliary beam, and the auxiliary beams can be multiplexed to improve the capacity of the system and ensure basic coverage.
  • FIG. 2 is a schematic structural diagram of an antenna system according to Embodiment 2 of the present invention.
  • the main antenna device and the secondary antenna device may respectively include respective antenna arrays and transceiver channels as an example for description. specific:
  • the antenna system 22 includes a main antenna device 201, a secondary antenna device 202, and a baseband processing module 203.
  • the main antenna device 201 specifically includes a main antenna array 2011 and a main antenna transceiver channel group 2012; the auxiliary antenna device includes a secondary antenna array 2021, a secondary beam forming network 2022, and a secondary antenna transceiver channel group 2023; and the baseband processing module 203 includes a baseband beam.
  • a module 2031 and a baseband beam application module 2032 are formed.
  • the main antenna array 2011 has a single-column cross-polarization structure, and the main antenna array 2011 includes a +45° polarization direction and a -45° polarization direction, which are respectively defined as a main polarization direction and a negative polarization direction;
  • One polarization direction is correspondingly connected to one primary antenna transceiver channel group 2012, so there are two main antenna transceiver channel groups 2012, corresponding to the main polarization and negative polarization directions respectively, and finally connected to the baseband in the baseband processing module 203.
  • the beam application module 2031 is on.
  • the main antenna beam horizontal pattern formed by the main antenna device 201 is as shown in FIG.
  • the auxiliary antenna array 2021 has a three-column structure, and the auxiliary antenna array 2021 includes two polarization directions, and each polarization direction is connected to a two-drive 3 beam forming network.
  • the two-drive 3 beamforming network structure 2022 of the secondary antenna includes a 90° bridge, a 2:1 power splitter, and a 180° phase shifter.
  • the 90° bridge is used to divide the signal flowing through the bridge into two ways, one for 90° phase shift and the other for no change in phase;
  • the 2:1 power splitter divides the signal flowing through the power splitter into two Two ways, and the amplitude changes, the amplitude ratio of the signal is 1:0.707;
  • the 180° phase shifter makes the phase of the signal flowing through the phase shifter 180°.
  • the two ports of the secondary antenna of the secondary antenna are connected to the three rows of the same-polarized array, and the two ports at the lower end can be connected to the auxiliary beam transceiver channel group 2023 through the cables of the same length. The phase change and amplitude change of each signal passing through the cable can be kept consistent.
  • the 4 ports at the lower end of the network correspond to the 4 auxiliary beam transceiver channels of the 2 sets of auxiliary beam transceiver channel groups 2023.
  • the auxiliary antenna transceiver channel is also used to correct the received and transmitted signals so that the amplitude phase changes of the signals received and transmitted by the four antenna transceiver channels are consistent.
  • the secondary antenna beam horizontal pattern formed by the auxiliary antenna device 202 is as shown in FIG. 5.
  • the auxiliary beam transceiver channel is connected to the baseband beamforming module 2031.
  • the baseband beamforming module determines which secondary beam transceiver channels receive and transmit the secondary beam by weighting the amplitude and phase of the received and transmitted signals. Because each auxiliary beam receiving and receiving channel group in the auxiliary antenna device has two auxiliary beam transmitting and receiving channels, two auxiliary beams can be received and transmitted, and the weights of the amplitude and phase weighting can be represented by a two-dimensional array. Each element in the device may correspond to one auxiliary beam transceiver channel, which may be represented by 1 or 0.
  • the element 1 indicates that the corresponding auxiliary beam transceiver channel is open, and the auxiliary beam receiving channel may be used for receiving or transmitting the auxiliary beam; 0 means that the corresponding auxiliary beam transceiver channel is closed, and the secondary beam is not received or transmitted.
  • the weight of the baseband beamforming module may be [1 0] or [0 1], corresponding to 2 auxiliary beams respectively.
  • the baseband beam application module 2032 is configured to receive and transmit the control signal and the part in the main beam coverage of the main antenna device 201 according to at least one of the pilot support capability, the user signal transmission power, and the reference signal received power RSRP.
  • the service signal, the control auxiliary antenna device 202 receives and transmits the service signal within the coverage of the auxiliary beam, or controls the primary antenna device 201 to switch from the main beam coverage to the auxiliary beam when receiving and transmitting the service signal within the coverage of the main beam. Coverage, specific:
  • the RSRP is the same as the RSRP with the largest RSRP in all the secondary beams
  • the absolute value of the RSRP difference between the two is greater than the second set threshold, for example, 6 dB, and these auxiliary beams are defined as elements in the reusable auxiliary beam set.
  • the reusable auxiliary beam set in addition to the above auxiliary beam, there is also a secondary beam having the largest RSRP. If the number of the reusable auxiliary beam set elements is greater than 1, and the beam with the largest RSRP in all beams is the main beam, it is determined whether the absolute value of the RSRP difference between the main beam of the largest RSRP and the auxiliary beam of the largest RSRP is smaller than the first set.
  • Set the threshold set here to 9dB. If it is smaller, it means that even if the traffic channel in the coverage of the main beam with the largest RSRP is switched to the secondary beam coverage, the coverage performance of the user will not be much lost. At this time, the main beam of the RSRP is covered by the main beam. The traffic channel is switched to the largest secondary beam coverage of the RSRP. The method pushes more users satisfying the multiplexing condition to the secondary beam sub-coverage, thereby increasing the probability of secondary beam multiplexing. By properly setting the first set threshold, it is possible to ensure that the coverage performance does not cause significant loss, and the capacity gain by multiplexing can be increased.
  • the main antenna device is composed of a main antenna array of a single-row cross-polarization array and two main antenna transceiver channel groups for receiving and transmitting control signals within the main beam coverage;
  • the auxiliary antenna device The auxiliary antenna array consists of three columns of cross-polarization arrays, two two-drive 3 beam forming networks and two auxiliary antenna transceiver channel groups of four auxiliary antenna transceiver channels, and receive and transmit service signals within the auxiliary beam coverage range;
  • the baseband processing module is composed of a baseband beamforming module and a baseband beam application module, and determines which secondary beam transceiver channels receive and transmit the auxiliary beam by weighting the amplitude and phase of the signal, and according to the reference signal receiving power RSRP and the like, The traffic channel is switched from primary beam coverage to secondary beam coverage. In this way, the control signal is transmitted and received through the main beam, and the service signal is transmitted and received through the main beam and the auxiliary beam to improve the capacity of the system while ensuring basic coverage.
  • FIG. 6 is a schematic structural diagram of an antenna system according to Embodiment 3 of the present invention. As shown in FIG. 6, in the embodiment, the antenna array and the transmission and reception channel of the main antenna device are unchanged, and the antenna array, the beamforming network, and the transmission and reception channel of the auxiliary antenna device are changed. specific:
  • the antenna system 44 includes a main antenna device 401, a secondary antenna device 402, and a baseband processing module 403.
  • the main antenna device 401 specifically includes a main antenna array 4011 and a main antenna transceiver channel group 4012.
  • the auxiliary antenna device includes a secondary antenna array 4021, a secondary beam forming network 4022, and a secondary antenna intra-corrected multi-channel transceiver channel group 4023.
  • the baseband processing module 403 A baseband beamforming module 4031 and a baseband beam application module 4032 are included.
  • Main antenna device 401 and baseband processing module 403 The structure and function are the same as those in the foregoing Embodiment 2, and details are not described herein again.
  • the structure of the auxiliary antenna device 402 will be specifically described below:
  • the auxiliary antenna array 4021 is a 4-column cross-polarized array, and its two polarization directions include a +45° polarization direction and a ⁇ 45° polarization direction, which are defined as a main polarization direction and a negative polarization direction, respectively.
  • Each polarization direction is connected to a 2-drive 4 beamforming network.
  • the structure of the 2-drive 4 beamforming network 4022 of the secondary antenna is shown in Figure 7, including a 90° bridge, two 4:1 power splitters, and two 180° phase shifters.
  • the 90° bridge is used to divide the signal flowing through the bridge into two paths, one for 90° phase shift and the other for no change in phase;
  • the 4:1 power splitter divides the signal flowing through the power splitter into two Two ways, and the amplitude changes, the amplitude ratio of the signal is 1:0.5;
  • the 180° phase shifter makes the phase of the signal flowing through the phase shifter 180°.
  • the two ports on the upper end of the two-wheel drive 4 beam forming network 4022 of the auxiliary antenna are respectively connected to the four columns of the same-polarized array, and the two ports at the lower end are respectively connected to the auxiliary beam transceiver channel group 4023 through the cables of the same length, and the connection cables are kept in the same length.
  • the phase change and amplitude change of each signal passing through the cable can be kept consistent. Because there is a 2 drive 4 beam forming network in each polarization direction, the 4 ports at the lower end of the network correspond to the 4 auxiliary beam transceiver channels of the 2 sets of auxiliary beam transceiver channel groups.
  • the auxiliary antenna transceiver channel is also used to correct the received and transmitted signals so that the amplitude phase changes of the signals received and transmitted through the four antenna transceiver channels are consistent.
  • the horizontal direction of the auxiliary beam of the auxiliary antenna device is as shown in FIG. 8.
  • the two antennas formed by the auxiliary antenna device under the two-wheel drive 4 beam forming network have low sidelobe suppression, small overlapping areas of the two beams, and good isolation of the two beams, which can effectively control inter-beam interference, thereby improving the system better. capacity.
  • the antenna array in the secondary antenna device is changed to a 4-column cross-polarization array, and the beamforming network in the secondary antenna device is changed to 2 drive 4 structure, which realizes receiving and transmitting signals with different arrays of auxiliary antenna arrays, and expands the array mode of the auxiliary antenna arrays, so that the array pattern of the auxiliary antenna arrays is more flexible and reliable, and more services are allowed.
  • FIG. 9 is a schematic structural diagram of an antenna system according to Embodiment 4 of the present invention. As shown in FIG. 9, in this embodiment, the main antenna device and the secondary antenna device share the same antenna array, beamforming network, and transmission and reception channel as an example. specific:
  • the main antenna device and the auxiliary antenna device of the antenna system 66 correspond to the same three columns of cross-polarized antenna arrays, so the antenna system is mainly composed of the main (auxiliary) antenna device 601 and the baseband processing module 602.
  • the primary antenna device and the secondary antenna device correspond to the same three columns of cross-polarized antenna arrays 6011, each of which includes a +45° polarization direction and a -45° polarization direction, respectively defined Main polarization direction and negative polarization direction.
  • each beam forming network is a 2-drive 3 beam forming network 6012.
  • Each 2-drive 3 beam forming network 6012 is connected to two auxiliary beam transceiver channel groups 6033 with internal correction capability through an equal length cable; therefore, there are 4 antenna transceiver channels. Connected to two 2WD 3 beamforming networks.
  • a baseband beamforming module 6021 and a baseband beam applying module 6022 are included.
  • the auxiliary beam transceiver channel is connected to the baseband beamforming module 6021, and has two ports, one signal being the main beam main negative port and the other being the auxiliary beam main negative port.
  • the baseband beamforming module 6021 determines which beam transceiver channels receive and transmit the primary and secondary beams by amplitude and phase weighting. Since there are two sets of beam transceiver channel groups 6033 in the primary (secondary) antenna device, two auxiliary beams can be received and transmitted, and when the two sets of beam transceiver channel groups 6033 are simultaneously turned on, because they are used to connect the beam transceiver channels.
  • the length of the connection cable of the beam forming network 6012 is the same, and the beam transceiver channel can also be used to correct the received and transmitted signals so that the amplitude and phase of the signals received and transmitted through the four antenna transceiver channels are consistent, so The two beams are combined to simulate the main beam.
  • control signal and the service signal can be received and transmitted within the coverage of the main beam, and/or, when the single-group beam transceiver channel group 6033 is turned on, the service signal is received and transmitted within the coverage of the auxiliary beam.
  • the horizontal direction of the simulated main beam is shown in Figure 10.
  • the main beam formed by the simulation has no distortion of the control channel, and the radiation pattern in the main radiation direction has no obvious depression.
  • the weight and phase weighted weights thereof may be specifically represented by a two-dimensional array, and each element in the array may correspond to one auxiliary beam transceiver channel. It can be represented by 1 or 0.
  • the element When the element is 1, it indicates that the corresponding auxiliary beam transceiver channel is opened, and can be supplemented by the auxiliary beam transceiver channel.
  • Receive and transmit of the beam when the element is 0, it indicates that the corresponding auxiliary beam transceiver channel is closed, and the auxiliary beam is not received and transmitted.
  • the weights of the baseband beamforming module 6021 can be [1 0], [0 1], respectively corresponding to two auxiliary beams. When the weight is [1 1], the two auxiliary beams are combined to simulate the main Receive and transmit of signals within the beam range.
  • the baseband beam application module 6022 is configured to receive and send control according to at least one of pilot support capability, user signal transmission power, and reference signal received power RSRP for controlling the primary (secondary) antenna device 601 within the main beam coverage.
  • the traffic channel is switched from the primary beam coverage to the secondary beam coverage, and the method is specifically as follows:
  • the secondary beams are defined as elements in the reusable auxiliary beam set.
  • the reusable auxiliary beam set further includes a secondary beam having the largest RSRP in addition to the above auxiliary beam. If the number of the reusable auxiliary beam set elements is greater than 1, and the beam with the largest RSRP in all beams is the main beam, it is determined whether the absolute value of the RSRP difference between the main beam of the largest RSRP and the auxiliary beam of the largest RSRP is smaller than the first set.
  • Set the threshold which is set to 9dB here.
  • the first threshold value here can be freely set. By setting different thresholds reasonably, it can ensure that the coverage performance does not have obvious loss, and the capacity gain by multiplexing can be increased.
  • the primary antenna device and the secondary antenna device share the same three-column antenna array and the same two 2-drive 3-beam forming networks.
  • the length of the cable between each antenna transceiver channel and the 2 drive 3 beamforming network is the same, and the antenna transceiver channel is also used to correct the received and transmitted signals so that the signals received and transmitted by the four antenna transceiver channels are The amplitude phase changes consistently.
  • the antenna transceiver channel performs amplitude and phase weighting of signals received and transmitted under the control of the baseband processing module, so that the two auxiliary beams formed by the 2WD 3 beamforming network are weighted and combined into one main beam. In this way, the main antenna device and the auxiliary are simultaneously realized on the same antenna array and the beam forming network.
  • the function of the antenna device is transmitted and received through the main beam through the control signal, and the service signal is transmitted and received through the main beam and the auxiliary beam to improve the capacity of the system and ensure basic coverage of the system.
  • the function of the main antenna device in the foregoing embodiment is replaced by the auxiliary antenna device, and the foregoing main antenna device may be omitted or directly removed. If the main antenna device is not used, the main antenna system may be used independently for other frequency bands. By removing the aforementioned main antenna device, the sky surface volume of the antenna system can be reduced.
  • FIG. 11 is a schematic structural diagram of an antenna system according to Embodiment 5 of the present invention.
  • the primary antenna device and the secondary antenna device share the same antenna array, beamforming network, and transceiver channel in this embodiment, and details are not described herein again.
  • the difference between this embodiment and the foregoing embodiment 4 is that the antenna array, the beamforming network, and the transceiver channel of the primary (secondary) antenna device are changed in this embodiment. details as follows:
  • the main (auxiliary) antenna array 7021 corresponds to the same 4-column cross-polarization array, and each polarization direction of the array is correspondingly connected to a 2-drive 4 beamforming network 7022, and the structure and function of the 2-drive 4 beam-forming network 7022 and the third embodiment
  • the 2 drive 4 beamforming network is the same.
  • the main (auxiliary) antenna device can simulate the main beam with the auxiliary beam, and the horizontal direction of the simulated main beam is as shown in FIG.
  • the main beam formed by the simulation has no distortion of the control channel, and the radiation pattern in the main radiation direction has no obvious depression.
  • the primary antenna device and the secondary antenna device share the same four-column antenna array and the same two 2-drive 4-beam forming networks.
  • the length of the cable between each antenna transceiver channel and the 2WD 4 beamforming network is the same, and the antenna transceiver channel is also used to correct the received and transmitted signals so that the signals received and transmitted by the 4 antenna transceiver channels are The amplitude phase changes consistently.
  • the antenna transceiver channel performs amplitude and phase weighting of signals received and transmitted under the control of the baseband processing module, so that the two auxiliary beams formed by the 2WD 4 beamforming network are weighted and combined into one main beam.
  • the functions of the primary antenna device and the secondary antenna device are simultaneously implemented on the same antenna array and the beamforming network, and the control signal is transmitted and received through the main beam, and the service signal is transmitted and received through the main beam and the auxiliary beam to improve the system capacity. Guarantee basic coverage.
  • FIG. 13 is a schematic structural diagram of an antenna according to Embodiment 6 of the present invention.
  • the antenna 88 includes a main antenna device 801 and a secondary antenna device 802;
  • a main antenna device 801 configured to form a main beam, and configured to receive and transmit control signals and service signals in a main beam range under control of a baseband processing module of the base station;
  • a secondary antenna device 802 is configured to form a secondary beam and to receive and transmit a traffic signal within the secondary beam coverage under control of the baseband processing module.
  • the main antenna device 801 is mainly used to complete basic coverage, and the auxiliary antenna device 802 is used to increase capacity.
  • the main antenna device includes M columns of first antenna arrays, and the M is an integer greater than or equal to 1; the first antenna array includes L a polarization direction, the L is an integer greater than or equal to 1; the first antenna array of the M column is connected to M ⁇ L of the main antenna transceiver channels; the first antenna array is connected to the baseband processing module, and is used for Under the control of the baseband processing module, control signals and service signals are received and transmitted within the coverage of the main beam.
  • the primary antenna device 801 and the secondary antenna device 802 may respectively include respective antenna arrays and transceiver channels, and the secondary antenna device further includes a beamforming network.
  • the antenna when the antenna is an active antenna, the transceiver channel, the antenna array, and the beam network are integrated in the radome; when the antenna is a passive antenna, the antenna array and the beam network are integrated in the radome, and the transceiver channel is separately set.
  • the RF module when the antenna is an active antenna, the transceiver channel, the antenna array, and the beam network are integrated in the radome; when the antenna is a passive antenna, the antenna array and the beam network are integrated in the radome, and the transceiver channel is separately set.
  • the transceiver channel of the primary antenna device 801 can select the primary beam under the control of the baseband processing module of the base station, and the beamforming network and the transceiver channel of the secondary antenna device 802 can form and select the secondary beam under the control of the baseband processing module of the base station.
  • the main antenna device may include one column of the first antenna array, the first antenna array includes two polarization directions, and the main antenna device further includes two main antenna transceiver channels.
  • the auxiliary antenna device may include M columns and second antenna arrays, wherein M is an integer greater than 1; the second antenna array includes L polarization directions, and the L is an integer greater than or equal to 1; Also comprising L auxiliary beam forming networks, each auxiliary beam forming network is an N-drive M beam forming network, and each N-drive M beam forming network acts on the same-polarized array in the second antenna array to form N auxiliary beams, each An N-drive M beam forming network is connected to the N auxiliary antenna transceiver channels, wherein the N is an integer greater than 1; the second antenna array is coupled to the baseband processing module for controlling under the control of the baseband processing module Receive and transmit traffic signals within the beam coverage.
  • the auxiliary antenna device may further include three columns of the second antenna array, the second antenna array includes two polarization directions, and the secondary antenna device further includes two 2-drive 3 beamforming networks.
  • Each of the 2 drive 3 beam forming networks is connected to 2 auxiliary antenna transceiver channels; or the auxiliary antenna device includes 4 columns of second antenna arrays, the second antenna array includes 2 polarization directions, and the auxiliary antenna device further includes 2 A 2 drive 4 beam forming network, each 2 drive 4 beam forming network is connected to 2 auxiliary antenna transceiver channels.
  • the primary antenna device 801 and the secondary antenna device 802 may correspond to the same antenna array, the beamforming network, and the transceiver channel.
  • the The primary antenna device and the secondary antenna device correspond to the same M-column third antenna array, the third antenna array includes L polarization directions, the M is an integer greater than 1, and the L is an integer greater than or equal to 1;
  • the antenna device and the auxiliary antenna device correspond to the same L beamforming networks, each beam forming network is an N-drive M beamforming network, and each N-drive M beamforming network acts on the same-polarized array in the third antenna array.
  • each N-drive M beam forming network is connected to N antenna transceiver channels, N is an integer greater than 1; for each polarization direction, the N antenna transceiver channels are used under the control of the baseband processing module Turning on or off to select the auxiliary beam; for each polarization direction, the N antenna transceiver channels are also used for amplitude and phase of signals received and transmitted under the control of the baseband processing module Weighting, so that N auxiliary beams are weighted into one main beam; the third antenna array is configured to receive and transmit the control signal and the service signal within the main beam coverage, and/or, in the auxiliary beam coverage The service signal is received and transmitted within the range.
  • the primary antenna device 801 and the secondary antenna device 802 can each include a respective antenna array and transceiver channel
  • the primary antenna device 801 can be comprised of a primary antenna array 8011 and a primary antenna transceiver channel group 8012.
  • the primary antenna transceiver channel group is connected to the baseband processing module of the base station, and receives and transmits the control signal within the main beam coverage under the control of the baseband processing module of the base station.
  • the secondary antenna device 802 is composed of a secondary antenna array 8021, a secondary beam forming network 8022, and a secondary antenna transceiver channel group 8023.
  • the main antenna array 8011 has the ability to support multiple frequency bands. It may be an array of M columns, where M is an integer greater than or equal to 1, the polarization direction of the array may be L, and L is an integer greater than or equal to 1.
  • M is an integer greater than or equal to 1
  • L is an integer greater than or equal to 1.
  • Each primary antenna transceiver channel group 8012 of the primary antenna corresponds to one polarization direction; the primary antenna transceiver channel group 8012 corresponding to each polarization direction of the primary antenna array 8011 includes M primary antenna transceiver channels.
  • the auxiliary antenna array 8021 may also have a single-column or multi-column structure and may be single-polarized or multi-polarized. It is assumed that the auxiliary antenna array 1021 is in M columns, where M is an integer greater than 1, the polarization direction of the array may be L, L is an integer greater than or equal to 1; each secondary antenna transceiver channel group 8023 of the secondary antenna corresponds to one polarization There are a total of L directions.
  • the auxiliary antenna transceiver channel group 8023 corresponding to each polarization direction of the array includes N transceiver channels, and N is an integer greater than 1.
  • the auxiliary antenna device 802 further includes L auxiliary beam forming networks 8022, each of the auxiliary beam forming networks 8022 is an N-drive M beam forming network, and each N-drive M beam forming network acts on the same-polarized array in the second antenna array.
  • N auxiliary beams each N-drive M beam forming network is connected to N auxiliary antenna transceiver channels; N auxiliary antenna transceiver channels corresponding to each polarization direction are used to be turned on or off under the control of the baseband processing module of the base station, Thereby the auxiliary beam is selected.
  • the primary antenna device 801 and the secondary antenna device 802 correspond to the same antenna array, beamforming network, and transceiver channel
  • the primary antenna device and the secondary antenna device may also correspond to the same M-column antenna array, and the M-column antenna array includes L.
  • Polarization direction, M is an integer greater than 1
  • L is an integer greater than or equal to 1; the antenna array can be used to receive and transmit control signals and service signals within the main beam coverage, and/or in the auxiliary beam Receive and transmit service signals within coverage.
  • the primary antenna device 801 and the secondary antenna device 802 correspond to the same L beamforming networks, each beam forming network is an N-drive M beamforming network, and each N-drive M beamforming network is connected to N antenna transceiver channels, where N is greater than 1 The integer.
  • the N antenna transmit/receive channels corresponding to each polarization direction are used to be turned on or off under the control of the baseband processing module of the base station to select the auxiliary beam; the L ⁇ N antenna transceiver channels are also used to The received and transmitted signals are corrected to maintain the amplitude and phase variations of the signals received and transmitted by the L x N antenna transceiver channels.
  • the length of the connection cable between the N antenna transceiver channels and the N-drive M beamforming network is the same.
  • the length of the connection cable between each antenna transceiver channel and the N-drive M beamforming network is the same; corresponding to each polarization direction, the N antenna transceiver channels are also used for receiving under the control of the baseband processing module of the base station. And the amplitude and phase weighting of the transmitted signal to make the N-drive M beam The N auxiliary beams formed by the formation of the network are weighted and combined into one main beam.
  • the primary antenna device in the antenna receives and transmits the control signal and the service signal within the coverage of the main beam; the secondary antenna device receives and transmits the service signal in the coverage of the auxiliary beam.
  • the control signal is sent and received through the main beam, and the service signal is transmitted and received in the main beam and the auxiliary beam, and the auxiliary beams can be multiplexed to improve the capacity of the system and ensure basic coverage.
  • FIG. 14 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
  • the base station 99 includes a baseband processing module 901 for controlling the primary antenna device in the antenna to receive and transmit control signals and service signals in the main beam range; and controlling the secondary antenna devices in the antenna to be in auxiliary beam coverage. Receive and send traffic signals within range.
  • the baseband processing module is specifically configured to: when the reference signal receives the beam with the largest RSRP power as the primary beam, if the absolute value of the RSRP difference between the primary beam and the secondary beam having the largest RSRP is smaller than the first setting After the threshold is set and the number of multiplexable secondary beam set elements is greater than 1, the service channel covered by the primary beam with the largest RSRP is switched to the secondary beam coverage of the largest RSRP.
  • the element in the reusable auxiliary beam set is the auxiliary beam of the RSRP maximum and the secondary beam of the RSRP difference between the secondary beam and the secondary beam having the largest RSRP greater than the second set threshold.
  • the baseband processing module 901 may include a baseband beamforming module 9011 and a baseband beam application module 9012.
  • the baseband beamforming module 9011 determines which secondary beam transceiver channels are to receive and transmit the secondary beam by weighting the amplitude and phase of the signals received and transmitted by the antenna.
  • the baseband beam application module 9012 is configured to control the main antenna device of the antenna to receive and transmit the control signal and the service signal in the main beam range; and the auxiliary antenna device in the control antenna receives and transmits the service signal in the auxiliary beam coverage.
  • the baseband processing module 901 is configured to: when the reference signal receives the beam with the largest RSRP as the primary beam, if the absolute value of the RSRP difference between the primary beam and the largest secondary beam of the RSRP is less than the first set threshold, And if the number of multiplexable auxiliary beam set elements is greater than 1, the service channel covered by the main beam with the largest RSRP is switched to the secondary beam cover with the largest RSRP.
  • Reusable The elements in the secondary beam set are the secondary beam of the largest RSRP and the secondary beam with the absolute value of the RSRP difference between the secondary beam and the secondary beam of the RSRP being greater than the second set threshold.
  • the baseband processing module 901 is disposed inside a baseband unit (BBU) of the base station.
  • BBU baseband unit
  • the baseband beamforming module 9011 in the baseband processing module 901 can perform weight and phase weighting of the signals transmitted and received by the antenna, and the weights of the amplitude and phase weights can be specifically represented by a multidimensional array, each of the arrays.
  • the element may correspond to one auxiliary beam transceiver channel of the antenna, and may be represented by 1 or 0.
  • the element When the element is 1, it indicates that the corresponding auxiliary beam transceiver channel in the antenna is turned on, and the auxiliary beam receiving and transmitting channel can be used to receive and transmit the auxiliary beam; when the element is 0, the corresponding auxiliary beam transceiver channel is closed, and no auxiliary is performed. Receive and transmit of the beam.
  • the weights of the baseband beamforming module 6021 can be [1 0], [0 1], respectively corresponding to two auxiliary beams. When the weight is [1 1], the two auxiliary beams are combined to simulate the main Receive and transmit of signals within the beam range.
  • the baseband beam application module 9012 in the baseband processing module 901 can control the main antenna in the antenna according to factors such as pilot support capability of the antenna, user signal transmission power, and reference signal receiving power (RSRP).
  • the antenna array of the antenna device receives and transmits control signals and service signals within the coverage of the main beam
  • the antenna array of the auxiliary antenna device in the control antenna receives and transmits the service signals within the coverage of the auxiliary beam.
  • the elements in the set are the secondary beam with the largest RSRP in the secondary beam and the secondary beam with the absolute value of the RSRP difference between the secondary beam and the largest secondary beam of the RSRP being greater than the first set threshold.
  • the absolute value of the RSRP maximum beam is the primary beam
  • the absolute value of the difference between the primary beam and the largest secondary beam of the RSRP is less than the second set threshold, and the number of multiplexable auxiliary beam elements is greater than 1
  • the baseband The baseband beam application module 9012 in the processing module 901 can switch the traffic channel covered by the RSRP largest main beam to the secondary beam coverage of the RSRP maximum.
  • the baseband processing module of the base station controls the antenna array of the primary antenna device in the antenna to receive and transmit within the coverage of the main beam according to factors such as the pilot support capability of the antenna, the transmission power of the user signal, and the received power of the reference signal.
  • the control signal and the service signal control the antenna array of the auxiliary antenna device in the antenna to receive and transmit the service signal within the coverage of the auxiliary beam. This improves the capacity of the base station while ensuring basic coverage of the base station.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un système d'antenne, une antenne et une station de base. Le système d'antenne comprend : un appareil d'antenne principale, un appareil d'antenne auxiliaire et un module de traitement de bande de base ; l'appareil d'antenne principale est connecté au module de traitement de bande de base pour former un faisceau principal, et, sous la commande du module de traitement de bande de base et dans la portée couverte par le faisceau principal, utilisé pour recevoir et envoyer des signaux de commande et des signaux de service ; l'appareil d'antenne auxiliaire est connecté au module de traitement de bande de base pour former un faisceau auxiliaire, et, sous la commande du module de traitement de bande de base et dans la portée couverte par le faisceau auxiliaire, utilisé pour recevoir et envoyer des signaux de service ; et le module de traitement de bande de base est utilisé pour commander l'envoi et la réception de signaux de commande et de signaux de service par l'antenne principale dans la portée couverte par le faisceau principal et pour commander l'envoi et la réception de signaux de service par l'antenne auxiliaire dans la portée couverte par le faisceau auxiliaire. La capacité de système peut donc être améliorée tout en garantissant simultanément une couverture fondamentale.
PCT/CN2014/090174 2013-11-08 2014-11-03 Système d'antenne, antenne et station de base WO2015067152A1 (fr)

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CN110998968B (zh) * 2017-06-27 2021-06-25 瑞典爱立信有限公司 用于无线电收发机设备的天线装置
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CN107580123A (zh) * 2017-08-30 2018-01-12 努比亚技术有限公司 天线切换触发控制方法、通信终端及计算机可读存储介质
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