CN104683504A - A method and device for reusing antenna - Google Patents
A method and device for reusing antenna Download PDFInfo
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- CN104683504A CN104683504A CN201310616045.7A CN201310616045A CN104683504A CN 104683504 A CN104683504 A CN 104683504A CN 201310616045 A CN201310616045 A CN 201310616045A CN 104683504 A CN104683504 A CN 104683504A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
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Abstract
The present invention discloses a method and device for reusing an antenna, and relates to the technical field of mobile terminals, wherein the method includes the following steps: detecting, by a mobile terminal, working states of a first transceiver module and a second transceiver module, respectively; according to the working states of the first transceiver module and the second transceiver module, connecting the first transceiver module and/or the second transceiver module to the antenna of the first transceiver module, respectively; and using, by the first transceiver module and the second transceiver module, the connected antenna of the first transceiver module for wireless receive and dispatch operations. The method of the present invention enable a mobile terminal and an active electronic tag having WIFI to reuse one WIFI antenna, reducing wastes on spaces of the mobile terminal, and simultaneously, the mobile terminal charges the active electronic tag, brining convenience to the user.
Description
Technical field
The present invention relates to technical field of mobile terminals, especially for there is WIFI(wireless fidelity, Wireless Fidelity) mobile terminal of function, propose a kind of antenna multiplexed method and device.
Background technology
Along with making rapid progress of mobile communication technology, the extensive use of 3G and LTE (Long Term Evolution, Long Term Evolution) development gradually of technology, mobile phone is no longer only the instrument of call, nearly all mobile terminal of mobile telephone all has function of surfing the Net, by 2G/3G/4G network or WIFI LAN optimization, access Internet network.Wherein, WIFI access function, has become most mobile phone, especially the standard configuration of smart mobile phone, has WIFI transceiver module and WIFI antenna, and support 802.11a/b/g/n wireless protocols, working frequency range has 2.4G, 5.8G.The UHF(Ultra High Frequency of active RFID (radio frequency identification, radio-frequency (RF) identification) label, hyperfrequency) exemplary operation frequency range has: 915MHz, 2.4GHz, 5.8GHz.Radio frequency system has numerous international standards to support in these frequency ranges.The basic characteristics of radio frequency system are that the data volume of preserving in electronic tag is comparatively large, reading distance (can reach several meters to tens meters) comparatively far away, adapt to objects at high speed Windsor.But active RFID tag and mobile terminal of mobile telephone are all equipped with respective antenna respectively, cause mobile terminal waste spatially.In addition, active RFID tag, built with battery, generally has reading distance far away, and identify that stable type is good, reading speed is fast, and weak point is the restricted lifetime (3-10) of battery.
Therefore, for solving the problem, the present invention proposes a kind of antenna multiplexed method and device.
Summary of the invention
The object of the present invention is to provide a kind of antenna multiplexed method and device, solve active RFID tag and mobile terminal of mobile telephone in prior art be all equipped with respectively respective antenna cause mobile terminal waste spatially, and the problem of the limited battery life of active electronic label.
According to an aspect of the present invention, provide a kind of antenna multiplexed method, it is characterized in that, comprise the following steps:
The operating state of mobile terminal to the first transceiver module and the second transceiver module detects respectively;
According to the operating state of described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module are communicated with respectively the antenna of the first transceiver module;
Described first transceiver module and the second transceiver module use the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation.
Preferably, described first transceiver module is WIFI transceiver module, and described second transceiver module is active electronic label module;
Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises:
The operating state of described WIFI transceiver module;
The operating state of described active electronic label module;
The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
Preferably, the described operating state according to described first transceiver module and the second transceiver module, comprises the antenna that described first transceiver module and/or the second transceiver module are communicated with the first transceiver module respectively:
When the operating state of described WIFI transceiver module being detected, described WIFI transceiver module is communicated with the antenna of described WIFI transceiver module;
When the operating state of described active electronic label module being detected, described active electronic label module is communicated with the antenna of described WIFI transceiver module;
When the operating state of the operating state of described WIFI transceiver module and described active electronic label module being detected, described WIFI transceiver module and described active electronic label module are communicated with respectively the antenna of described WIFI transceiver module.
Preferably, described active electronic label module utilizes the electric supply installation of described mobile terminal to power.
Preferably, the mode that described active electronic label module utilizes the electric supply installation of described terminal to power comprises following two kinds:
The power management module of the electric supply installation of described mobile terminal is to described active electronic label module for power supply;
The battery of the electric supply installation of described mobile terminal is to described active electronic label module for power supply.
Preferably, the power management module of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply:
When the voltage that described power management module provides meets the voltage needed for described active electronic label module, then directly to described active electronic label module for power supply;
When the voltage that described power management module provides does not meet the voltage needed for described active electronic label module, then pass through DC-DC modular converter to described active electronic label module for power supply.
Preferably, the battery of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply;
The battery of the electric supply installation of described mobile terminal passes through DC-DC modular converter to described active electronic label module for power supply.
According to a further aspect in the invention, provide a kind of antenna multiplexed device, comprising:
Detection module, detects respectively for the operating state of mobile terminal to the first transceiver module and the second transceiver module;
Be communicated with Anneta module, for the operating state according to described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module be communicated with respectively the antenna of the first transceiver module;
Wireless Multiplexing module, uses the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation for described first transceiver module and the second transceiver module.
Preferably, described first transceiver module is WIFI transceiver module, and described second transceiver module is active electronic label module;
Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises:
The operating state of described WIFI transceiver module;
The operating state of described active electronic label module;
The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
Preferably, described active electronic label module utilizes the electric supply installation of described mobile terminal to power.
Compared with prior art, beneficial effect of the present invention is:
The present invention makes mobile terminal and the multiplexing WIFI antenna of active RFID tag with WIFI, decreases mobile terminal waste spatially, and mobile terminal is that active RFID tag is powered simultaneously, and without the need to special battery, brings facility to user.
Accompanying drawing explanation
Fig. 1 is a kind of antenna multiplexed method flow diagram provided by the invention;
Fig. 2 is a kind of antenna multiplexed device schematic diagram provided by the invention;
Fig. 3 is the multiplexing frame diagram of the active RFID tag that provides of the embodiment of the present invention and WIFI;
Fig. 4 is the schematic diagram of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides;
Fig. 5 is the execution mode one of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides;
Fig. 6 is the execution mode two of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides;
Fig. 7 is the execution mode three of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides;
Fig. 8 is that the active RFID tag that the embodiment of the present invention provides utilizes mobile terminal to provide the execution mode one of power supply;
Fig. 9 is that the active RFID tag that the embodiment of the present invention provides utilizes mobile terminal to provide the execution mode two of power supply;
Figure 10 is that the active RFID tag that the embodiment of the present invention provides utilizes mobile terminal to provide the execution mode three of power supply.
Embodiment
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail, should be appreciated that following illustrated preferred embodiment is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Indication mobile terminal of the present invention is the mobile terminal with WIFI function, in conjunction with the active RFID transceiver module of active RFID tag.From the electric supply installation of mobile terminal, provide direct voltage to provide power supply to the active RFID transceiver module of active RFID tag.When mobile terminal is in normal operating conditions, the active RFID transceiver module of active RFID tag has power supply always; When mobile terminal electricity is not enough, mobile terminal can send the warning of electricity deficiency, reminding user charges in time or changes battery of mobile terminal, can avoid the state that the active RFID transceiver module of active RFID tag is in non-normal working because electricity is not enough like this.Simultaneously, the difference of WIFI agreement is supported according to mobile terminal, WIFI transceiver module and WIFI antenna support one of them or 2 frequency ranges of 2.4G, 5.8G, active RFID transceiver module by switch and the multiplexing WIFI antenna of WIFI transceiver module, the transmitting-receiving of support 2.4/5.8G signal.
Fig. 1 shows a kind of antenna multiplexed method flow diagram provided by the invention, as shown in Figure 1, comprises the following steps:
Step S101: the operating state of mobile terminal to the first transceiver module and the second transceiver module detects respectively;
Step S102: according to the operating state of described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module are communicated with respectively the antenna of the first transceiver module;
Step S103: described first transceiver module and the second transceiver module use the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation.
First transceiver module of the present invention is WIFI transceiver module, and described second transceiver module is active electronic label module; Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises: the operating state of described WIFI transceiver module; The operating state of described active electronic label module; The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
Specifically, the described operating state according to described first transceiver module and the second transceiver module, the antenna that described first transceiver module and/or the second transceiver module are communicated with the first transceiver module respectively being comprised: when the operating state of described WIFI transceiver module being detected, described WIFI transceiver module being communicated with the antenna of described WIFI transceiver module; When the operating state of described active electronic label module being detected, described active electronic label module is communicated with the antenna of described WIFI transceiver module; When the operating state of the operating state of described WIFI transceiver module and described active electronic label module being detected, described WIFI transceiver module and described active electronic label module are communicated with respectively the antenna of described WIFI transceiver module.
Active electronic label module of the present invention utilizes the electric supply installation of described mobile terminal to power.
Wherein, the mode that described active electronic label module utilizes the electric supply installation of described terminal to power comprises following two kinds: the power management module of the electric supply installation of described mobile terminal is to described active electronic label module for power supply; The battery of the electric supply installation of described mobile terminal is to described active electronic label module for power supply.
Specifically, the power management module of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply: when the voltage that described power management module provides meets the voltage needed for described active electronic label module, then directly to described active electronic label module for power supply; When the voltage that described power management module provides does not meet the voltage needed for described active electronic label module, then pass through DC-DC modular converter to described active electronic label module for power supply.
Specifically, the battery of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply; The battery of the electric supply installation of described mobile terminal passes through DC-DC modular converter to described active electronic label module for power supply.
Fig. 2 shows a kind of antenna multiplexed device schematic diagram provided by the invention, as shown in Figure 2, comprising: detection module 201, detects respectively for the operating state of mobile terminal to the first transceiver module and the second transceiver module; Be communicated with Anneta module 202, for the operating state according to described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module be communicated with respectively the antenna of the first transceiver module; Wireless Multiplexing module 203, uses the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation for described first transceiver module and the second transceiver module.
First transceiver module of the present invention is WIFI transceiver module, and described second transceiver module is active electronic label module; Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises: the operating state of described WIFI transceiver module; The operating state of described active electronic label module; The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
Active electronic label module of the present invention utilizes the electric supply installation of described mobile terminal to power.
Fig. 3 shows active RFID tag that the embodiment of the present invention provides and the multiplexing frame diagram of WIFI, as shown in Figure 3, mobile terminal 1 mainly comprises with lower device: communication module 2, for supporting the communication of 2G/3G/4G/LTE, WIFI transceiver module 3, WIFI antenna 4, active RFID transceiver module 5, power management module 6, battery 7.
Fig. 4 shows the schematic diagram of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides, as shown in Figure 4, WIFI antenna 4, by switch 8, be connected to WIFI transceiver module 3 and active RFID transceiver module 5, realize the multiplexing of antenna, support the transmitting-receiving of WIFI reception and active RFID signal.
Fig. 5 shows the execution mode one of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides, as shown in Figure 5, the switch sections of switch 8 normally in a switch chip or mobile terminal chip module group, has an antenna pin " Ant "; Control signal pin, can realize sheet and select function; The operating voltage Vc of chip; 2 paths, each path can realize signal transmitting and receiving.WIFI antenna 4 is 2.4G antennas, is connected to the antenna pin " Ant " of switch 8, and 2 paths of switch 8 are connected respectively to WIFI transceiver module 3 and active RFID transceiver module 5.Wherein, WIFI transceiver module 3 realizes transmitting-receiving 2.4G WIFI signal, meet the agreement of 802.11b/g/n, active RFID transceiver module 5 realizes transmitting-receiving 2.4G RFID signal, meets International Electrotechnical Commission of International Standards Organization ISO/IEC18000-4 or user-defined protocol.ISO/IEC18000-4 is the Radio Frequency Identity Protocols of the Item Management being applicable to microwave section 2.4GHz, and collision-proof method is added in the physical interface between regulation read write line and label, agreement and order.This standard comprises two kinds of patterns: pattern 1 is passive label working method is that read write line is first said; Pattern 2 is active labels, and working method is that label is first said.When WIFI and active RFID tag are in conjunction with work in mobile terminal, three kinds of working methods can be supported: (1) only WIFI work: WIFI opens, active RFID tag closes; (2) only active RFID tag work: WIFI pass, active RFID tag are opened; (3) WIFI and active RFID tag all work: WIFI opens, active RFID tag is opened, and this can be selected by user or the form of factory preset sets.In " only WIFI work " mode, mobile terminal sends the control signal of a sheet choosing to switch 8, and as " 00 ", gating WIFI path, is communicated with WIFI transceiver module 3; Mode that mobile terminal is operated in " only active RFID tag work ", mobile terminal sends sheet and selects control signal, if sheet choosing " 01 " is to switch 8, selects to connect active RFID transceiver module 5; If " WIFI and active RFID tag all work " working method, mobile terminal sends control signal control switch 8, according to time-multiplexed rule, using the time as the parameter of signal segmentation, make WIFI, active RFID tag two paths of signals non-overlapping copies on a timeline, as at work period T, wherein, the t0 time sends " 00 " sheet and selects WIFI passage, and the T-t0 time sends " 01 " sheet and selects active RFID tag passage.Time devided modulation, can according to certain rule, as the principle such as " WIFI is preferential ", " active RFID tag is preferential " is carried out.As " active RFID tag is preferential ", be exactly preferentially ensure that active RFID tag meets the requirement of whole RFID label tag system, in this case, the most high workload speed of WIFI may be affected.
Fig. 6 shows the execution mode two of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides, as shown in Figure 6, WIFI antenna 4 is 5.8G antennas, be connected to the antenna pin " Ant " of switch 8,2 paths of switch 8 are connected respectively to WIFI transceiver module 3 and active RFID transceiver module 5, WIFI transceiver module 3 realizes transmitting-receiving 5.8G WIFI signal, meet the agreement of 802.11a, active RFID transceiver module 5 realizes transmitting-receiving 5.8G RFID signal, meets ISO IEC18000-5, ISO TC204 or user-defined protocol.ISO/IEC18000-5 is the Radio Frequency Identity Protocols of the Item Management being applicable to microwave section 5.8GHz.With 2.4G single frequency operation Pattern Class seemingly, when being operated in " only WIFI work ", mobile terminal sends a sheet and selects control signal to switch 8, selects to be communicated with WIFI transceiver module 3; When being operated in " only active RFID tag work ", the sheet of mobile terminal selects control signal to pass to switch 8, selects active RFID transceiver module 5; If " WIFI and active RFID tag all work ", same, mobile terminal control switch 8 carries out time division multiplexing.
Fig. 7 shows the execution mode three of the WIFI antenna of the multiplexing mobile terminal of active RFID tag that the embodiment of the present invention provides, as shown in Figure 7, WIFI antenna 4 is 2.4G/5.8G dual-band antennas, be connected to the antenna pin " Ant " of switch 8, 2 paths of switch 8 are connected respectively to WIFI transceiver module 3 and active RFID transceiver module 5, WIFI transceiver module 3 realizes transmitting-receiving 2.4G/5.8G WIFI signal, meet the agreement of 802.11a/b/g/n, active RFID transceiver module 5 realizes transmitting-receiving 2.G/5.8G RFID signal, meet ISO IEC18000-4, ISO IEC18000-5, ISO TC204 or user-defined protocol, be applicable to microwave section 2.4G, the Radio Frequency Identity Protocols of the Item Management of 5.8GHz.During mobile terminal work " only WIFI work " mode, mobile terminal sends a sheet and selects control signal to switch 8, is communicated with WIFI transceiver module 3; During mode that mobile terminal is operated in " only active RFID tag work ", mobile terminal provides sheet to select control signal to switch 8, selects active RFID transceiver module 5.In this case, support that mobile terminal manually arranges and selects the RFID label tag mode of operation of 2.4G or 5.8G frequency band network, if when the support of active RFID transceiver module automatically identifies and is operated in 2.4G or 5.8G signal, without the need to setting further and selecting.Same, if " WIFI and active RFID tag all work " mode, mobile terminal control signal carries out time division multiplexing with regard to control switch 8, realizes the function of WIFI network access and active RFID tag.
The active RFID tag that Fig. 8 shows the embodiment of the present invention to be provided utilizes mobile terminal to provide the execution mode one of power supply, as shown in Figure 8, mobile terminal has a power management module 6 usually, multiple output can be drawn, there is provided power supply to multiple modules of mobile terminal inside, and can realize turning on and off control to output voltage or current signal.Directly meet active RFID transceiver module 5 operating voltage VCC when the output of power management module 6 has, just directly can draw and be connected to active RFID transceiver module 5.
The active RFID tag that Fig. 9 shows the embodiment of the present invention to be provided utilizes mobile terminal to provide the execution mode two of power supply, as shown in Figure 9, power management module 6, time output signal voltage does not directly meet the demands, a road voltage signal VCC can be selected from output signal, receive a voltage DC-DC modular converter 9, carry out DC-DC conversion, export the voltage signal VDD meeting active RFID transceiver module 5 and work.
The active RFID tag that Figure 10 shows the embodiment of the present invention to be provided utilizes mobile terminal to provide the execution mode three of power supply, as shown in Figure 10, when the output signal voltage of power management module 6 can not meet the requirement of active RFID tag, also cannot be realized by voltage transitions, can consider, from battery of mobile terminal 7 directly extraction voltage signal VBAT, to receive a voltage DC-DC modular converter 9.Carry out DC-DC voltage transitions, export the voltage signal VDD meeting active RFID transceiver module 5 and work.
In sum, the present invention has following technique effect:
The present invention makes mobile terminal have active RFID tag function simultaneously, for the active RFID tag being operated in 2.4G/5.8G, mobile terminal also can a WIFI antenna multiplexing with label, decrease mobile terminal waste spatially, simultaneously, mobile terminal can provide power supply for RFID label tag, improves Consumer's Experience.
Although above to invention has been detailed description, the present invention is not limited thereto, those skilled in the art of the present technique can carry out various amendment according to principle of the present invention.Therefore, all amendments done according to the principle of the invention, all should be understood to fall into protection scope of the present invention.
Claims (10)
1. an antenna multiplexed method, is characterized in that, comprises the following steps:
The operating state of mobile terminal to the first transceiver module and the second transceiver module detects respectively;
According to the operating state of described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module are communicated with respectively the antenna of the first transceiver module;
Described first transceiver module and the second transceiver module use the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation.
2. method according to claim 1, is characterized in that, described first transceiver module is WIFI transceiver module, and described second transceiver module is active electronic label module;
Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises:
The operating state of described WIFI transceiver module;
The operating state of described active electronic label module;
The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
3. method according to claim 2, is characterized in that, the described operating state according to described first transceiver module and the second transceiver module, comprises the antenna that described first transceiver module and/or the second transceiver module are communicated with the first transceiver module respectively:
When the operating state of described WIFI transceiver module being detected, described WIFI transceiver module is communicated with the antenna of described WIFI transceiver module;
When the operating state of described active electronic label module being detected, described active electronic label module is communicated with the antenna of described WIFI transceiver module;
When the operating state of the operating state of described WIFI transceiver module and described active electronic label module being detected, described WIFI transceiver module and described active electronic label module are communicated with respectively the antenna of described WIFI transceiver module.
4., according to the arbitrary described method of claim 1-3, it is characterized in that, described active electronic label module utilizes the electric supply installation of described mobile terminal to power.
5. method according to claim 4, is characterized in that, the mode that described active electronic label module utilizes the electric supply installation of described terminal to power comprises following two kinds:
The power management module of the electric supply installation of described mobile terminal is to described active electronic label module for power supply;
The battery of the electric supply installation of described mobile terminal is to described active electronic label module for power supply.
6. method according to claim 5, is characterized in that, the power management module of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply:
When the voltage that described power management module provides meets the voltage needed for described active electronic label module, then directly to described active electronic label module for power supply;
When the voltage that described power management module provides does not meet the voltage needed for described active electronic label module, then pass through DC-DC modular converter to described active electronic label module for power supply.
7. method according to claim 6, is characterized in that, the battery of the electric supply installation of described mobile terminal comprises to described active electronic label module for power supply;
The battery of the electric supply installation of described mobile terminal passes through DC-DC modular converter to described active electronic label module for power supply.
8. an antenna multiplexed device, is characterized in that, comprising:
Detection module, detects respectively for the operating state of mobile terminal to the first transceiver module and the second transceiver module;
Be communicated with Anneta module, for the operating state according to described first transceiver module and the second transceiver module, described first transceiver module and/or the second transceiver module be communicated with respectively the antenna of the first transceiver module;
Wireless Multiplexing module, uses the antenna of described first transceiver module be communicated with to carry out wireless receiving and dispatching operation for described first transceiver module and the second transceiver module.
9. device according to claim 8, is characterized in that, described first transceiver module is WIFI transceiver module, and described second transceiver module is active electronic label module;
Wherein, the described operating state according to described first transceiver module and the second transceiver module comprises:
The operating state of described WIFI transceiver module;
The operating state of described active electronic label module;
The operating state of described WIFI transceiver module and the operating state of described active electronic label module.
10. device according to claim 8 or claim 9, it is characterized in that, described active electronic label module utilizes the electric supply installation of described mobile terminal to power.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616045.7A CN104683504A (en) | 2013-11-27 | 2013-11-27 | A method and device for reusing antenna |
| PCT/CN2014/076741 WO2014180285A1 (en) | 2013-11-27 | 2014-05-04 | Antenna multiplexing method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616045.7A CN104683504A (en) | 2013-11-27 | 2013-11-27 | A method and device for reusing antenna |
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| CN104683504A true CN104683504A (en) | 2015-06-03 |
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| WO (1) | WO2014180285A1 (en) |
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| CN115189698A (en) * | 2021-03-22 | 2022-10-14 | Oppo广东移动通信有限公司 | UWB tag, communication method and related product |
| CN115189698B (en) * | 2021-03-22 | 2023-10-03 | Oppo广东移动通信有限公司 | UWB tag, communication method and related product |
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| WO2014180285A1 (en) | 2014-11-13 |
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