Electronic device, control method and program for the same
A technology of an electronic device and a control method, which is applied to electrical components, diversity/multi-antenna systems, space transmit diversity, etc., and can solve difficult problems with built-in antennas in small electronic devices, MIMO wireless devices that cannot use radio waves, and no simultaneous use of multiple antennas. to reduce the number of antennas, enhance communication performance, and improve wireless communication performance
Inactive Publication Date: 2012-01-04
FUJITSU LTD
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Problems solved by technology
[0006] In order to incorporate multiple MIMO wireless functions into electronic devices, multiple antennas for each wireless function are required, so it is expected to be difficult to incorporate antennas into small electronic devices
[0007] The method of separating wireless signals by frequency filters and sharing antennas with multiple wireless functions as described in Patent Document 2 cannot use MIMO wireless devices that transmit and receive radio waves of the same frequency band in parallel from multiple antennas.
[0008] In addition, in the case of the above-mentioned Patent Document 3, on the premise that multiple wireless functions share one antenna, there is no way to switch to allow multiple antennas to be used at the same time
[0009] In addition, Patent Document 4 discloses a technique of selecting and using one antenna with the best sensitivity from among multiple antennas, but it cannot be used in the MIMO wireless technology that uses multiple antennas at the same time.
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[0119] Thereafter, it is first judged whether it is the switching timing of the antenna 131 to the antenna 133 (step 302). In other words, it is considered that the communication is unstable when switching of connections between the antennas 131 to 133 occurs without restriction. Therefore, in the present embodiment, for example, the time when the separation is better during a call is used as the timing for switching the antennas.
[0120] And, at the time of handover, the magnitude relationship between the communication cost information CA and the communication cost information CB is judged (step 303).
[0121] When CA
[0122] When it is judged...
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An electronic device having a plurality of antennas and a plurality of communication modules with a communication function for sending and receiving data by simultaneously using the antennas comprises an antenna selecting switch for selecting a connection of the antennas to the communication modules and a judging circuit for controlling the antenna selecting switch by determining whether or not to connect the antennas to the communication module in operation with reference to an LED output signal outputted from each communication module to turn on or off an LED for an external indication of the operating state.
Description
technical field [0001] The present invention relates to an electronic device, a control method of the electronic device, and a control program of the electronic device, and relates to a personal computer including a communication module for performing wireless communication by MIMO (Multi-Input Multi-Output) technology, for example, Effective technology in various electronic devices such as mobile phones and portable information terminals. Background technique [0002] For example, Patent Document 1 discloses a technique in which an antenna is provided for each wireless device when a plurality of wireless devices are incorporated in an electronic device such as a personal computer. [0003] Alternatively, as in Patent Document 2, when a plurality of wireless devices share an antenna, a bandpass filter is used to separate the frequencies used by the respective wireless devices and to use them in common. [0004] Also, Patent Document 3 discloses a technique for connecting th...
Claims
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IPC IPC(8): H04B1/40H04B1/3822H04B7/04H04B7/08H04J99/00
CPCH04B7/04H04B1/16H04B1/40
Inventor 滨田圭
Owner FUJITSU LTD
