Assigning uwb anchors for client ranging

An apparatus comprising:

• an interface configured to enable network communications;
• and
• one or more processors coupled to the interface and configured to perform operations including:
• estimating a coarse location of a mobile device using a localization technique other than an ultra-wide band (UWB) localization technique, the localization technique involving a plurality of radio devices;
• defining an area around the coarse location to identify a set of candidate anchors for UWB ranging for the mobile device, the set of candidate anchors being disposed within the area and comprising at least a subset of the plurality of radio devices;
• modifying the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices;
• selecting a primary anchor from the modified set of candidate anchors;
• and
• sending a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.

One or more non-transitory computer readable storage media comprising instructions that, when executed by at least one processor, are operable to:

• estimate a coarse location of a mobile device using a localization technique other than an ultra-wide band (UWB) localization technique, the localization technique involving a plurality of radio devices;
• define an area around the coarse location to identify a set of candidate anchors for UWB ranging for the mobile device, the set of candidate anchors being disposed within the area and comprising at least a subset of the plurality of radio devices;
• modify the set of candidate anchors to create a modified set of candidate anchors that includes only UWB-enabled devices;
• select a primary anchor from the modified set of candidate anchors;
• and
• send a command to cause a UWB ranging procedure to be initiated between the primary anchor and the mobile device.