Location determination of wireless stations using one-to-many communication techniques

摘要

Certain embodiments herein relate to efficient location determination by wireless stations using one-to-many communication techniques. Location determination can be facilitated by using one-to-many communication techniques to provide for efficient timing message exchange between an initiating wireless station and one or more responding wireless stations. Based at least in part on the time-of-flight of the exchanged messages, the initiating wireless station can determine its distances from the respective one or more responding wireless stations. Based at least in part on the determined distances, the wireless initiating station can determine its location using trilateration or multilateration techniques.

主权项

1. A responding wireless station comprising:
a memory having computer instructions stored thereon; a processor configured to access the memory and execute the computer instructions to:
transmit, using a one-to-many communication protocol, one or more timing messages to a plurality of initiating wireless stations, wherein:
the one or more timing messages comprise a plurality of unique identifiers associated with the plurality of initiating wireless stations, anda first timing message of the one or more timing messages includes an instruction to the plurality of initiating wireless stations to record a time the first timing message is received by the plurality of initiating wireless stations;transmit, to the plurality of initiating wireless stations, a time window, prior to transmitting the one or more timing messages, wherein:
the time window corresponds to a duration of time when resources of the responding wireless station will be available to transmit the one or more timing messages, andthe computer instructions to transmit the one or more timing messages further comprises computer instructions to transmit at least one of the one or more timing messages within the time window; anddetermine, from at least one of the plurality of initiating wireless stations, one or more trigger frames comprising an indication that the plurality of initiating wireless stations are available to receive the at least one of the one or more timing messages, wherein:
the one or more trigger frames are received within the time window, andthe computer instructions to transmit the at least one of the one or more timing messages within the time window further comprises computer instructions to transmit the at least one of the one or more timing messages responsive to receiving the one or more trigger frames.