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US 10,433,219 B2Granted
WLAN system and handover method and apparatus for use therein
AssigneeSamsung Electronics Co., Ltd.
InventorsIksoon Hwang, Jiwon Ha, Jongil Kim
Life of this patent
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Abstract
A Wireless Local Area Network (WLAN) system, a handover method, and an apparatus for use therein are provided. A handover method of a station in a wireless local area network (WLAN) system includes storing handover availability information received from a connected Access Point (AP) connected to the station; and suspending, when the handover availability information is set to “unavailable”, an operation for handover to another AP.
Claims13
A handover method of a station in a Wireless Local Area Network (WLAN) system, the method comprising:
- receiving, by the station, one of a beacon signal and a probe response signal including handover availability information received from an Access Point (AP) of the WLAN system, the handover availability information indicating whether a future handover from the AP is available or unavailable in the WLAN system;
- storing the handover availability information received from the AP;
- connecting to the AP, after receiving and storing the handover availability information from the AP;
- determining whether a handover condition is fulfilled in the connected state with the AP;
- and
- preventing an attempt for a handover in the WLAN system, when the handover condition is fulfilled, and the stored handover availability information is set to “unavailable”,
- wherein the attempt for the handover includes searching for a new AP available for the handover, and further includes at least one of transmitting a signal for connection with the new AP found by the searching and transmitting a signal to the AP requesting to perform a handover procedure, and
- wherein if an Extended Service Set (ESS) only has the AP, the handover availability information is set to “unavailable”.
5 more elements
A station supporting handover in a Wireless Location Area Network (WLAN) system, the station comprising:
- a WLAN communication unit configured to communicate with an Access Point (AP) of the WLAN system;
- a memory;
- and
- a control unit configured to:
- receive, via the WLAN communication unit, one of a beacon signal and a probe response signal including handover availability information received from the AP of the WLAN system, the handover availability information indicating whether a future handover from the AP is available or unavailable in the WLAN system;
- store, in the memory, the handover availability information received from the AP;
- connect, via the WLAN communication unit, to the AP, after receiving and storing the handover availability information from the AP;
- determine whether a handover condition is fulfilled in the connected state with the AP;
- and
- preventing an attempt for a handover in the WLAN system, when the handover condition is fulfilled, and the stored handover availability information is set to “unavailable”,
- wherein the attempt for the handover includes searching for a new AP available for the handover, and further includes at least one of transmitting a signal for connection with the new AP found by the searching and transmitting a signal to the AP requesting to perform a handover procedure, and
- wherein if an Extended Service Set (ESS) only has the AP, the handover availability information is set to “unavailable”.
9 more elements
A system for determining a handover, the system comprising:
- an Access Point (AP) that transmits one of a beacon signal and a probe response signal including handover availability information to the station, the handover availability information indicating whether a future handover from the AP is available or unavailable in the system;
- and
- a station that:
- receives the one of the beacon signal and the probe response signal including the handover availability information
- stores the handover availability information received from the AP;
- connects to the AP, after receiving and storing the handover availability information from the AP;
- determines whether a handover condition is fulfilled in the connected state with the AP;
- and
- prevents an attempt for a handover in the system, when the handover condition is fulfilled, and the stored handover availability information is set to “unavailable”,
- wherein the attempt for the handover includes searching for a new AP available for the handover, and further includes at least one of transmitting a signal for connection with the new AP found by the searching and transmitting a signal to the AP requesting to perform a handover procedure, and
- wherein if an Extended Service Set (ESS) only has the AP, the handover availability information is set to “unavailable”.
8 more elements
Dependencies are inferred from the claim text.