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Communication device and communication method

A technology of communication device and communication method, applied in wireless communication, space transmission diversity, radio transmission system, etc., capable of solving problems such as inability to receive wireless signals well

Inactive Publication Date: 2017-11-21
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, there is a problem that in receiving antenna diversity technology, when the communication partner transmits a wireless signal at an arbitrary timing, the wireless signal cannot be received well in many cases.

Method used

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  • Communication device and communication method
  • Communication device and communication method
  • Communication device and communication method

Examples

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Embodiment approach ）

[0067] In this embodiment, an example will be described in which two reception antennas are mounted, and the probability of receiving a radio signal transmitted at an arbitrary timing is increased in a communication device that switches reception antennas using reception antenna diversity technology. An example of a wireless communication standard is IEEE802.15.4. In addition, the present invention can be applied to other wireless communication standards.

[0068] figure 1 An example of the system configuration of this embodiment is shown.

[0069] figure 1 The illustrated communication system 100 has a parent station 101 , child station A ( 111 ), child station B ( 112 ), child station C ( 113 ), and child station D ( 114 ). The master station 101 receives communication data from each of the child stations A ( 111 ), child station B ( 112 ), child station C ( 113 ), and child station D ( 114 ). The base station 101 switches the receiving antennas through receiving antenna...

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Abstract

It has: a first antenna part (2) and a second antenna part (3); a switching part (4), which selects the first antenna part (2) during the first period, and selects the second antenna part (3) during the second period; The reception determination unit (6) determines whether the communication data contained in the wireless signal received by the first antenna unit (2) or the second antenna unit (3) can be normally obtained; and the storage unit (7), for multiple communication terminals The corresponding relationship between each of the first antenna part (2) and the second antenna part (3) is stored, and the switching part (4) sets the length of the first period and the second period so that it can be judged that the normal acquisition and The ratio of the number of times of communication data transmitted by the communication terminal corresponding to the second antenna unit (3) to the number of times it is determined that the communication data transmitted by the communication terminal corresponding to the first antenna unit (2) can be normally acquired, and The ratio of the length of the second period to the length of the first period is equal.

Description

technical field [0001] The present invention relates to a communication device and a communication method. Background technique [0002] In recent years, in addition to conventional wired communication, more convenient wireless communication has attracted attention. In wireless communication, there is a technology that mounts multiple antennas and performs communication using multiple antennas for the purpose of expanding the communication area or suppressing the influence of interference waves (antenna diversity technology). [0003] In the receiving antenna diversity technique for receiving a radio signal using one of a plurality of antennas, among the plurality of antennas, an antenna capable of good reception may differ depending on each communication partner. In this case, in order to receive wireless signals from a plurality of communication partners well, it is necessary to use an antenna capable of receiving wireless signals from the communication partners well at t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/28H04B7/08H04W84/10
CPCH04B7/0805H04B7/0822H04B1/16H04B17/104
Inventor 高木健治山本尚武浮田阳介
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD