Back to results
US 2010/0302981 A1Published application
Method and apparatus for roaming in a wireless network
AssigneeRalink Technology Corporation
InventorsCheng Lung Tsai, Chia Hsiang Hsu
Life of this patent
Estimating the term…
Abstract
An apparatus for roaming in a wireless network updates received signal strength indication (RSSI) values in accordance with all types of frames forwarded from the access point with which the apparatus associates. In addition, the apparatus actively forwards null frames to the access point with which the apparatus associates and updates RSSI values in accordance with acknowledgement frames forwarded from the access point.
Claims20
A method for roaming in a wireless network, comprising:
- receiving a plurality of frames forwarded from a first access point;
- updating at least one received signal strength indication (RSSI) value in accordance with any of the plurality of frames;
- and
- associating with a second access point if the at least one RSSI value is less than a threshold value or if a period as of receiving the last frame exceeds a predetermined value.
1 more element
A method for roaming in a wireless network, comprising:
- forwarding a null frame to a first access point periodically;
- receiving at least one frame forwarded from the first access point;
- updating at least one received signal strength indication (RSSI) value in accordance with the at least one frame;
- and
- associating with a second access point if the at least one RSSI value is less than a threshold value or if a period as of receiving the last frame exceeds a predetermined value.
2 more elements
An apparatus for roaming in a wireless network, comprising:
- a forwarding unit configured to forward at least one null frame to a first access point periodically;
- a receiving unit configured to receive a plurality of frames forwarded from the first access point;
- an updating unit configured to update at least one received signal strength indication (RSSI) value in accordance with any of the plurality of frames;
- a determining unit configured to determine whether the at least one RSSI value is less than a threshold value or whether at least one period as of receiving the last frame exceeds a predetermined value;
- and
- a switching unit configured to switch a connection to a second access point in accordance with a determination result of the determining unit.
3 more elements
Dependencies are inferred from the claim text.