Base station and mobile terminal
A technology for mobile terminals and base stations, which is applied in wireless communication, access restriction, network traffic/resource management, etc., and can solve problems such as increased switching time and retransmission length, data communication interruption, etc.
Inactive Publication Date: 2009-09-16
KK TOSHIBA
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Problems solved by technology
That is, the switching time will increase the length of the retransmission performed due to no response to the control data communication for the connection and / or timeout after the receive wait, and the data communication will be interrupted during this time
Method used
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Embodiment Construction
[0031] Embodiments of the present invention will be described below with reference to the drawings.
[0032] figure 1 The configuration of a base station (or access point) 11 according to an embodiment of the present invention is shown.
[0033] The access point 11 includes a WLAN antenna 12 , a WLAN antenna 13 , a wireless monitoring unit 14 , a wireless communication unit 15 , a wired communication unit 16 , a protocol conversion unit 17 , a control unit 18 , and a TCP / IP protocol stack 19 .
[0034] A wireless monitoring unit 14 corresponding to the antenna 12 and a wireless communication unit 15 corresponding to the antenna 13 are configured. The wireless monitoring unit 14 and the wireless communication unit 15 are device drivers of the wireless LAN.
[0035] The wireless monitoring unit 14 monitors wireless data received by the antenna 12 . The antenna 12 is not used for data communication but for radio surveillance and is activated in promiscuous mode to receive all ...
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The invention relates to a base station and mobile terminal. There is provided a base station that includes a search request receiving unit configured to receive from a mobile terminal a search request requesting search of a candidate base station for a handover target; an examination request transmitting unit configured to transmit to other base stations an examination request for checking whether or not the mobile terminal is present in the coverage areas of the other base stations when the search request has been received; an examination result receiving unit configured to receive, from the other base stations, examination result information showing whether or not the mobile terminal is present in the coverage areas of the other base stations; and a search response transmitting unit configured to identify one of the other base stations whose coverage area contains the mobile terminal as the candidate base station, and transmit, to the mobile terminal, information on the identified candidate base station.
Description
technical field [0001] The present invention relates to a base station and a mobile terminal, and, for example, to a technique for replacing a base station while reducing degradation in communication quality of a mobile terminal during handover. Background technique [0002] In a wireless local area network (LAN), when a mobile terminal moves and moves physically away from an access point (which is a base station with which the terminal establishes a connection), radio conditions will deteriorate. To this end, the mobile terminal performs a handover in order to re-establish a connection with another access point. Since the wireless communication with the connected base station was disconnected during the handover, the mobile terminal cannot perform data communication during this period, which results in loss or delay of communication data. [0003] Specifically, at the time of handover, the mobile terminal issues a request to find neighboring access points (this is called s...
Claims
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IPC IPC(8): H04W28/04H04W48/18
CPCH04W36/0055H04W36/08
Inventor 谷内谦一
Owner KK TOSHIBA