Very far-field communication

摘要

A network device receives, from a user device, an inquiry for a selected very-far field communication (VFC) tag and selects, from a group of available base stations, one or more particular base stations of a wireless access network from which to broadcast a tag query for the selected VFC tag. The network device inserts the tag query into a broadcast signal of each of the one or more particular base stations. The VFC tag receives the tag query and transmits a local response signal over a local wireless network. A mobile device within range of the local response signal processes the local response signal and forwards the local response signal to the network device as a tag response. The network device receives the tag response and sends an indication of the tag response to the user device.

主权项

1. A method, comprising:
selecting, by a network device and from a group of available base stations, one or more particular base stations of a wireless access network from which to broadcast a tag query for a selected very-far field communication (VFC) tag; inserting, into a broadcast signal of each of the one or more particular base stations, the tag query; receiving, by the network device and from a mobile device within range of a local wireless network signal of the selected VFC tag, a tag response that is prompted by the tag query and a local signal from the selected VFC tag, wherein the mobile device is different than the VFC tag; and sending, by the network device and to a user device, an indication of the tag response.