Seamless roaming preparation with multiple target access point multi-link devices
AssigneeCisco Technology, Inc.
InventorsBinita GUPTA, Brian D. HART, Malcolm M. SMITH
Life of this patent
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Abstract
Seamless roaming preparation for a STA to multiple target AP MLDs. An AP MLD that the STA is connected to can receive multiple roaming preparation requests from the STA for different target AP MLDs. The AP MLD transmits the roaming preparation requests to the different target AP MLDs and receives a response from the different target AP MLDs indicating whether each of the different target AP MLDs accepted the roaming preparation request. The AP MLD transmits the responses back to the STA along with roaming information for at least one target AP MLD.
Claims20
An access point multi-link device (AP MLD) comprising:
- one or more memories;
- and
- one or more processors communicatively coupled to the one or more memories, wherein the one or more processors are configured to, individually or collectively, perform operations comprising:
- receiving a roaming preparation request from a station (STA);
- transmitting, based on the roaming preparation request, a second request to a plurality of target AP MLDs;
- receiving a plurality of responses to the second request from the plurality of target AP MLDs, wherein each of the plurality of responses indicates whether a respective target AP MLD in the plurality of target AP MLDs accepts the second request;
- and
- transmitting, based on the plurality of responses, a roaming preparation response to the STA, wherein the roaming preparation response comprises information for the STA to roam to at least one of the plurality of target AP MLDs.
An access point multi-link device (AP MLD) comprising:
- one or more memories;
- and
- one or more processors communicatively coupled to the one or more memories, wherein the one or more processors are configured to, individually or collectively, perform operations comprising:
- receiving a plurality of roaming preparation request frames from a station (STA), wherein each of the plurality of roaming preparation request frames designates a different target AP MLD in a plurality of target AP MLDs for roaming;
- transmitting, based on the plurality of roaming preparation request frames, a second request to the plurality of target AP MLDs;
- receiving a plurality of responses to the second request from the plurality of target AP MLDs, wherein each of the plurality of responses indicates whether a respective target AP MLD in the plurality of target AP MLDs accepts the second request;
- and
- transmitting, based on the plurality of responses, a plurality of roaming preparation response frames to the STA, wherein the plurality of roaming preparation response frames comprises information for the STA to roam to at least one of the plurality of target AP MLDs, and wherein the number of the plurality of roaming preparation response frames matches the number of the plurality of roaming preparation request frames.
A method comprising:
- receiving, on an access point multi-link device (AP MLD), a roaming preparation request from a station (STA);
- transmitting, from the AP MLD, based on the roaming preparation request, a second request to a plurality of target AP MLDs;
- receiving, on the AP MLD, a plurality of responses from the plurality of target AP MLDs based on the second requests, wherein each of the plurality of responses indicates whether a respective target AP MLD in the plurality of target AP MLDs accepts the second request;
- and
- transmitting, from the AP MLD, based on the plurality of responses, a roaming preparation response to the STA, wherein the roaming preparation response comprises information for the STA to roam to at least one of the plurality of target AP MLDs.
Dependencies are inferred from the claim text.