WO2015154358A1 - Circuit de diversité de transmission, et terminal mobile - Google Patents

Circuit de diversité de transmission, et terminal mobile Download PDF

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Publication number
WO2015154358A1
WO2015154358A1 PCT/CN2014/084424 CN2014084424W WO2015154358A1 WO 2015154358 A1 WO2015154358 A1 WO 2015154358A1 CN 2014084424 W CN2014084424 W CN 2014084424W WO 2015154358 A1 WO2015154358 A1 WO 2015154358A1
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WO
WIPO (PCT)
Prior art keywords
antenna
branch
circuit
transmit diversity
main
Prior art date
Application number
PCT/CN2014/084424
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English (en)
Chinese (zh)
Inventor
谢卫博
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2015154358A1 publication Critical patent/WO2015154358A1/fr

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of transmit diversity techniques, and more particularly to a transmit diversity circuit and a mobile terminal.
  • the mobile terminal circuit in the FDD (Frequency Division Duplexing) working mode mainly includes a transmitting branch, a primary receiving branch, and a diversity receiving diversity circuit, wherein the transmitting branch and the primary receiving branch pass through the dual
  • the unit is combined into a common path that is connected to the main path antenna.
  • the diversity receive branch is a relatively independent circuit that is connected to the diversity antenna.
  • the physical meaning of diversity reception includes enabling the receiving end to obtain a plurality of statistically independent fading signals carrying the same information, and combining the received plurality of statistically independent fading signals to reduce the influence of spatial fading on the received signal.
  • the minimum distance and direction between the primary and secondary antennas are strictly required.
  • the primary and secondary antennas are designed at both ends of the terminal, The isolation is the biggest.
  • Figure 1 shows the traditional circuit design.
  • the terminal When the communication terminal works, due to the power closed-loop control requirement, when the terminal detects that the received signal is weak, in order to ensure the balance of the communication link, the terminal will increase the transmission power of the transmitter to ensure the balance of the communication link.
  • the primary and secondary antennas are in different positions in the electric field of the base station, the strength of the signals received by the two antennas will be different.
  • Figure 2 Schematic diagram of the location of the terminal antenna in the electric field of the base station.
  • the antenna 1 receives a signal that is stronger than the signal received by the antenna 2, and the antenna 1 is at an unfavorable position relative to the antenna 2 in the base station electric field.
  • the antenna 1 uses the antenna 1 to transmit uplink data
  • the order of the data modulation is reduced, and the uplink rate of the terminal is lowered.
  • the terminal increases the transmission power, which may cause the terminal power consumption to increase. Therefore, there is a problem in the related art due to the antenna being in an unfavorable position in the electric field of the base station. The problem of the lower uplink rate is reduced.
  • the technical problem to be solved by the embodiments of the present invention is to provide a transmit diversity circuit and a mobile terminal including the same, to solve the problem that the uplink rate of the terminal is reduced due to the antenna being in an unfavorable position in the electric field of the base station. problem.
  • a transmit diversity circuit includes: a first antenna, a second antenna, a main antenna branch, a secondary antenna branch, a conduction circuit, and a control unit, where:
  • One end of the conducting circuit is connected to the first antenna and the second antenna, and the other end is connected to the main antenna branch and the auxiliary antenna branch, and has a first state and a second state;
  • the control unit is configured to: control the conduction circuit to switch between the first state and the second state according to a preset control policy;
  • the first antenna is connected to the main antenna branch through the conductive circuit, and the second antenna is connected to the auxiliary antenna branch through the conductive circuit;
  • the first antenna is connected to the auxiliary antenna branch through the conduction circuit, and the second antenna is connected to the main antenna branch through the conduction circuit.
  • the main antenna branch includes: a transmitting branch, a main receiving branch, and a duplexer, where: the transmitting branch is connected to a radio frequency chip of the terminal;
  • the primary receiving branch is also connected to the radio frequency chip of the terminal;
  • the duplexer is connected to the conducting circuit, and the duplexer is configured to: merge the transmitting branch with the main receiving branch.
  • the auxiliary antenna branch is a diversity receiving branch.
  • control unit is further configured to:
  • the preset control policy includes: Controlling, when the value of the first signal strength is greater than the value of the second signal strength, exceeds a preset threshold for a preset duration, the first antenna and the main antenna branch are turned on, and the second antenna is The auxiliary antenna branch is turned on;
  • the second antenna and the main antenna branch are turned on, and simultaneously The first antenna is electrically connected to the auxiliary antenna branch.
  • the preset threshold is ldB.
  • the preset duration is 1 second.
  • the conducting circuit is a double pole double throw switch.
  • control unit is a baseband chip.
  • a mobile terminal comprising any of the transmit diversity circuits described above.
  • the above technical solution detects the signal strength of two antennas in real time through the terminal, and always uses the antenna with a better electric field position as the transmitting antenna, and limits the threshold of the switching, reduces the number of invalid switching of the switch, and enhances the interference of the switch by external interference. ability. Effectively improve the uplink rate of the terminal, and appropriately reduce the transmit power of the power amplifier of the terminal, reducing the power consumption of the whole machine, and effectively extending the battery life time for the terminal product with the battery.
  • FIG. 1 is a schematic structural view of a conventional transmit diversity circuit according to the background art of the present invention
  • FIG. 2 is a schematic diagram showing the position of a terminal antenna in an electric field of a base station according to the background art of the present invention
  • FIG. 3 is a view showing the transmission according to the first embodiment of the present invention
  • Schematic diagram of the diversity circuit
  • FIG. 4 is a flow chart showing an example of a preset control strategy according to Embodiment 1 of the present invention
  • FIG. 5 is a flow chart showing a second example of the preset control strategy according to the first embodiment of the present invention
  • FIG. 6 is a flowchart showing a third example of the preset control strategy according to the first embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a transmit diversity circuit according to Embodiment 1 of the present invention.
  • the transmit diversity circuit includes: a first antenna 10, a second antenna 20, a main antenna branch 4, a secondary antenna branch 5, a conduction circuit 3, and a control unit 6, wherein:
  • the conducting circuit 3 is connected to the first antenna 10 and the second antenna 20, respectively, and the conducting circuit 3 has a first state and a second state;
  • the control unit 6 is configured to control the conduction circuit 3 to switch between the first state and the second state according to a preset control policy
  • the first antenna 10 and the second antenna 20 are respectively connected to the main antenna branch 4 and the auxiliary antenna branch 5 through the conduction circuit 3, that is, the first An antenna 10 is connected to the main antenna branch 4, and a second antenna 20 is connected to the auxiliary antenna branch 5.
  • the first antenna 10 and the second antenna 20 pass through the conduction circuit 3.
  • the auxiliary antenna branch 4 and the main antenna branch 5 are respectively connected, that is, the first antenna 10 is connected to the auxiliary antenna branch 5, and the second antenna 20 is connected to the main antenna branch 4.
  • the main antenna branch 4 is the main receiving branch
  • the auxiliary antenna branch 5 is the diversity receiving branch.
  • the conducting circuit 3 is connected to the main antenna branch 4 according to the preset control strategy of the control unit 6.
  • the second antenna 20 can also be switched between the main antenna branch 4 and the auxiliary antenna branch 5, and the effect achieved is that in practical applications, due to the main The position of the auxiliary antenna in the electric field of the base station is different, and the strength of the signals received by the two antennas may be different.
  • the first antenna 10 The received signal will be stronger than the signal received by the second antenna 20, while the first antenna 10 is at an unfavorable position relative to the second antenna 20 in the base station electric field. Therefore, when the terminal uses the first antenna 10 to transmit uplink data, the terminal reduces the order of data modulation, which causes the uplink rate of the terminal to decrease. At the same time, according to the power closed-loop control mechanism, the terminal increases the transmit power, which may result in power consumption of the terminal. increase.
  • the control unit 6 controls the conduction circuit 3 according to the preset control policy, so that the first antenna 10 and the second antenna 20 respectively and the main antenna
  • the branch 4 and the auxiliary antenna branch 5 are switched on, the transmission power can be improved and the power consumption can be reduced.
  • the foregoing preset control policy includes: controlling the first antenna 10 and the main antenna branch when the first signal strength is greater than the value of the second signal strength exceeds a preset threshold for a preset duration
  • the second antenna 20 is electrically connected to the auxiliary antenna branch 5; and the second signal strength is greater than the value of the first signal strength exceeding the preset threshold for the preset duration
  • the second antenna 5 is controlled to be electrically connected to the main antenna branch 4, and the first antenna and the auxiliary antenna branch 5 are electrically connected.
  • Case 1 As shown in Figure 4, the working process of the transmit diversity circuit includes:
  • Step 401 The default transmitting antenna is the main antenna 1.
  • the system defaults to antenna 1 of the two antennas as the transmitting antenna, and uses the uplink signal transmitted by antenna 1 to interact with the wireless communication network.
  • Step 402 Process the signals received by the two antennas separately, and detect the RSSI1 and RSSI2 signals.
  • the terminal After accessing the network, the terminal processes the radio frequency signals received by the two antennas, and demodulates the signal strengths RSSI1 and RSSI2 of the two.
  • Step 403 Compare the sizes of RSSI1 and RSSI2.
  • the switch does not perform the action, and returns to step 403. If the RSSI2 is greater than the RSSI1, the current transmitting antenna does not meet the working requirement, and the switching execution step 404 is required.
  • Step 404 The control unit outputs a control command, and the switch is switched.
  • Step 405 The transmitting antenna is switched to the antenna 2.
  • the baseband chip issues a switching command, the switching switch performs a switching action, and the transmitting antenna switches to the antenna 2.
  • the baseband chip issues a switching command
  • the switching switch performs a switching action
  • the transmitting antenna switches to the antenna 2.
  • RSSI2 is greater than RSSI1 ldB and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • Step 406 Compare the sizes of RSSI1 and RSSI2.
  • the terminal detects that RSSI1 is greater than RSSI2, indicating that the current transmitting antenna does not meet the working requirements and needs to be switched.
  • Step 407 The control unit outputs a control command, and the switch is switched.
  • Step 408 Switch the world to the antenna 1 .
  • the baseband chip issues a switching instruction, the switching switch performs a switching action, and the transmitting antenna switches to the antenna 1.
  • the baseband chip issues a switching instruction
  • the switching switch performs a switching action
  • the transmitting antenna switches to the antenna 1.
  • RSSI1 is greater than RSSI2 ldB and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • Step 501 The default transmitting antenna is the main antenna 1.
  • the system defaults to antenna 2 of the two antennas as the transmitting antenna, and uses the uplink signal transmitted by antenna 2 to interact with the wireless communication network.
  • Step 502 Process the signals received by the two antennas separately, and detect the RSSI1 and RSSI2 signals.
  • the terminal After accessing the network, the terminal processes the radio frequency signals received by the two antennas, and demodulates the signal strengths RSSI1 and RSSI2 of the two.
  • Step 503 Compare the sizes of RSSI1 and RSSI2.
  • RSSI1 is greater than RSSI2, it means that the current transmitting antenna does not meet the working requirements and needs to be switched.
  • Step 504 The control unit outputs a control command, and the switch is switched.
  • Step 505 The transmitting antenna is switched to the antenna 2. That is, the baseband chip issues a switching command, the switching switch performs a switching operation, and the transmitting antenna switches to the antenna 1. In order to reduce unnecessary switching, it is necessary to ensure that RSSI1 is greater than RSSI2 1dB and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • Step 506 Compare the sizes of RSSI1 and RSSI2.
  • step 506 is returned.
  • the RSSI1 is greater than the RSSI2 Id B and remains for 1 second, and step 507 is performed.
  • Step 507 The control unit outputs a control command, and the switch is switched.
  • Step 508 The transmitting antenna is switched to the antenna 1.
  • the terminal detects that RSSI2 is greater than RSSI1 from a certain location, indicating that the current transmitting antenna does not meet the working requirements, and needs to be switched. Then the baseband chip issues a switching instruction, and the switching switch makes a switching action. , the transmit antenna is switched to antenna 2. In order to reduce unnecessary switching, it is necessary to ensure that RSSI2 is greater than RSSI1 IdB and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • Step 601 In the initial state, the two antennas only receive the downlink signal of the base station.
  • Step 602 Process the signals received by the two antennas separately, and detect RSSI1 and RSSI2.
  • the system only receives the downlink signal of the base station, and does not transmit the signal output.
  • the terminal processes the radio frequency signals received by the two antennas, and demodulates the signal strengths RSSI1 and RSSI2 of the two antennas respectively.
  • Step 603 Compare the sizes of RSSI1 and RSSI2.
  • RSSI1 is greater than RSSI2, indicating that the transmitting antenna 1 meets the working requirements, the antenna 1 is used as the return to step 603.
  • the terminal detects that the RSSI2 is greater than the RSSI1 from a certain location, indicating that the current transmitting antenna does not meet the working requirements, and the handover is required, and step 604 is performed.
  • Step 604 The control unit outputs a control command, and the switch is switched.
  • Step 605 The transmitting antenna is switched to the antenna 1.
  • the baseband chip issues a switching command, the switching switch performs a switching action, and the transmitting antenna switches to the antenna 2.
  • the baseband chip issues a switching command
  • the switching switch performs a switching action
  • the transmitting antenna switches to the antenna 2.
  • RSSI2 is greater than RSSI1 ldB and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • Step 606 Align the sizes of RSSI2 and RSSI1.
  • the terminal detects that the RSSI1 is greater than the RSSI2, indicating that the current transmitting antenna does not meet the working requirements, and needs to perform the handover, and step 607 is performed.
  • Step 607 The control unit outputs a control command, and the switch is switched.
  • Step 608 The transmitting antenna is switched to the antenna 2.
  • the baseband chip issues a switching command, the switching switch performs a switching action, and the transmitting antenna switches to the antenna 2.
  • the baseband chip issues a switching command
  • the switching switch performs a switching action
  • the transmitting antenna switches to the antenna 2.
  • RSSI1 is greater than 1 dB of RSSI2 and keep it for 1 second, which will reduce the number of invalid switching of the switch and reduce the misoperation caused by external interference.
  • the signal strength of the two antennas is detected in real time by the terminal, and the antenna with better electric field position is always used as the transmitting antenna, and the threshold of the switching is limited, the number of invalid switching of the switch is reduced, and the switch is enhanced by external interference. ability. Effectively increase the terminal's uplink rate, and appropriately reduce the terminal's power amplifier's transmit power, reducing the power consumption of the whole machine, and effectively extend the battery life time for battery-equipped terminal products.
  • FIG. 7 is a schematic structural diagram of a transmit diversity circuit according to Embodiment 2 of the present invention.
  • the transmit diversity circuit includes: an antenna with equal or close performance, an antenna 1 and an antenna 2, a transmit branch PA configured to transmit a signal for outputting a radio frequency signal, and a main receive branch LNA configured to receive an antenna for reception.
  • the signal strengths RSSI1 and RSSI2 received by antenna 1 and antenna 2 are demodulated inside the radio chip of the communication terminal, and an algorithm of the internal software of the baseband chip is used to compare the signal strengths of the two signals to determine an antenna with strong received signal strength. .
  • the switching command of the X-type double-pole double-throw DPDT switch is controlled to ensure that the transmitting channel can be switched to the antenna with better received signal strength.
  • the mobile terminal includes the above-described transmit diversity circuit.
  • the invention detects the signal strength of two antennas in real time through the terminal, and always uses the antenna with better electric field position as the transmitting antenna, and limits the threshold of the switching of the switch, reduces the number of invalid switching of the switch, and enhances the ability of the switch to be interfered by the outside world. . Effectively improve the uplink rate of the terminal, and appropriately reduce the transmission power of the power amplifier of the terminal, thereby reducing the power consumption of the whole machine, and effectively extending the battery life time for the terminal product with the battery.
  • the above technical solution detects the signal strength of two antennas in real time through the terminal, and always uses the antenna with a better electric field position as the transmitting antenna, and limits the threshold of the switching, reduces the number of invalid switching of the switch, and enhances the interference of the switch by external interference. ability. Effectively improve the uplink rate of the terminal, and appropriately reduce the transmit power of the power amplifier of the terminal, reducing the power consumption of the whole machine, and effectively extending the battery life time for the terminal product with the battery. Therefore, the present invention has strong industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un circuit de diversité de transmission et un terminal mobile utilisés dans la conception d'un circuit d'antenne de terminal mobile. Le circuit de diversité de transmission comprend : une première antenne ; une seconde antenne ; une branche d'antenne principale ; une branche d'antenne auxiliaire ; un circuit de conduction dont une extrémité est reliée à la première antenne et la seconde antenne et l'autre extrémité est reliée à la branche d'antenne principale et la branche d'antenne auxiliaire, et ayant un premier état et un second état ; et une unité de commande configurée pour commander au circuit de conduction de se commuter entre le premier état et le second état d'après une stratégie de commande prédéterminée. Dans le premier état, la première antenne et la seconde antenne se connectent à la branche d'antenne principale et la branche d'antenne auxiliaire via le circuit de conduction. Dans le second état, la première antenne et la seconde antenne se connectent à la branche d'antenne auxiliaire et la branche d'antenne principale respectivement via le circuit de conduction. Dans la présente invention, un terminal détecte l'intensité de signal de deux antennes en temps réel et prend toujours comme antenne de transmission l'antenne dont la position de champ électrique est la meilleure. La capacité de transmission de données du terminal de communication de liaison montante est ainsi améliorée et la consommation d'énergie du dispositif terminal est réduite.
PCT/CN2014/084424 2014-04-09 2014-08-14 Circuit de diversité de transmission, et terminal mobile WO2015154358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410140531.0 2014-04-09
CN201410140531.0A CN104980205A (zh) 2014-04-09 2014-04-09 发射分集电路与移动终端

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WO (1) WO2015154358A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109245795A (zh) * 2018-11-15 2019-01-18 天津七二通信广播股份有限公司 一种数传模式下的双信道信号检测与控制系统及实现方法
CN110072271A (zh) * 2018-01-23 2019-07-30 展讯通信（上海）有限公司 双天线系统的控制方法及装置
GB2568239B (en) * 2017-11-02 2020-04-15 Bittium Wireless Oy Antenna selection

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102609545B1 (ko) * 2016-08-16 2023-12-05 삼성전자주식회사 파워 제어 장치, 시스템 및 방법
CN106712801A (zh) * 2017-03-17 2017-05-24 上海传英信息技术有限公司 一种移动终端的天线切换装置
CN107277909A (zh) 2017-07-10 2017-10-20 惠州Tcl移动通信有限公司 一种降低移动终端sar值的方法及存储介质、移动终端
CN107204797A (zh) * 2017-07-21 2017-09-26 上海传英信息技术有限公司 天线设备、移动终端及主天线与分集天线的切换方法
CN108270088B (zh) * 2018-01-19 2021-01-08 Oppo广东移动通信有限公司 天线组件、电子设备及天线切换方法
CN108566234B (zh) * 2018-03-16 2022-02-25 华勤技术股份有限公司 一种电子设备
CN110650472B (zh) * 2018-06-27 2021-11-19 华为技术有限公司 一种通信方法及装置
CN109246804A (zh) * 2018-08-24 2019-01-18 Tcl通讯（宁波）有限公司 一种可降低无线通信功耗的方法及设备
CN108880585B (zh) * 2018-09-11 2021-01-15 武汉维力克科技有限公司 基于滤波器的信号接收发送装置
CN109547054A (zh) * 2018-12-28 2019-03-29 维沃移动通信有限公司 信号控制电路、终端设备及信号控制方法
CN110098857B (zh) * 2019-03-29 2021-04-09 华为技术有限公司 终端设备的天线切换方法和装置
US20220322247A1 (en) * 2019-09-12 2022-10-06 Apple Inc. Beam Management Solution for MPE
CN112511207B (zh) * 2020-11-03 2022-05-27 广州技象科技有限公司 一种基于功耗管理的多天线分集发射方法、装置、电子设备及存储介质
CN113949429B (zh) * 2021-10-15 2024-06-25 维沃移动通信有限公司 信号处理装置及电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1499867A (zh) * 2002-11-04 2004-05-26 深圳市中兴通讯股份有限公司 一种实时天线选择发射分集方法及装置
CN101060359A (zh) * 2006-04-21 2007-10-24 明基电通股份有限公司 天线选择方法及装置
CN103414507A (zh) * 2013-07-26 2013-11-27 北京小米科技有限责任公司 一种移动终端及其天线的切换方法和装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8670390B2 (en) * 2000-11-22 2014-03-11 Genghiscomm Holdings, LLC Cooperative beam-forming in wireless networks
US7039370B2 (en) * 2003-10-16 2006-05-02 Flarion Technologies, Inc. Methods and apparatus of providing transmit and/or receive diversity with multiple antennas in wireless communication systems
US8750811B2 (en) * 2007-03-14 2014-06-10 Google Inc. Method, apparatus and system for phase difference adjustment in transmit diversity
CN102208931B (zh) * 2010-03-29 2014-12-10 中兴通讯股份有限公司 多天线信道天线支路功率比的建模方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1499867A (zh) * 2002-11-04 2004-05-26 深圳市中兴通讯股份有限公司 一种实时天线选择发射分集方法及装置
CN101060359A (zh) * 2006-04-21 2007-10-24 明基电通股份有限公司 天线选择方法及装置
CN103414507A (zh) * 2013-07-26 2013-11-27 北京小米科技有限责任公司 一种移动终端及其天线的切换方法和装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2568239B (en) * 2017-11-02 2020-04-15 Bittium Wireless Oy Antenna selection
CN110072271A (zh) * 2018-01-23 2019-07-30 展讯通信（上海）有限公司 双天线系统的控制方法及装置
CN110072271B (zh) * 2018-01-23 2022-03-01 展讯通信（上海）有限公司 双天线系统的控制方法及装置
CN109245795A (zh) * 2018-11-15 2019-01-18 天津七二通信广播股份有限公司 一种数传模式下的双信道信号检测与控制系统及实现方法

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