Interleaving ultra-wideband positioning services with other ultra-wideband services

By controlling the allocation of ranging rounds in the DL-TDoA and HUS sessions, the interference problem between the DL-TDoA and HUS sessions is solved, enabling efficient coexistence of DL-TDoA and HUS services and improving the user experience of indoor positioning services.

CN122460184APending Publication Date: 2026-07-24QORVO US INC
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Patent Information

Application Number
CN202480081719.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-27
Filing Date
2024-11-15
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In complex UWB environments, interference between DL-TDoA sessions and HUS sessions leads to DL-TDoA service degradation, making it difficult for users to accurately locate their devices. Existing technologies make it difficult for the two to coexist efficiently.

Method used

By controlling the ranging round allocation between DL-TDoA transmission and other ultra-wideband transmissions, and employing a method of interleaving hybrid UWB scheduling (HUS) sessions with DL-TDoA sessions, it is ensured that DL-TDoA sessions and HUS sessions can operate effectively in the same environment simultaneously.

Benefits of technology

It enables DL-TDoA service and HUS service to coexist efficiently in the same environment, reduces UWB message interference, and improves the user experience of indoor positioning services.

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Abstract

Systems, apparatuses, and methods of interleaving DL-TDoA with other UWB transmissions are disclosed. In an example aspect, a method performed by a UWB device is disclosed. The method can include participating in establishing a HUS session associated with a HUS secondary session. The method can further include listening for DL-TDoA messages during a ranging block in a DL-TDoA session, where the ranging block comprises a first time block and a second time block. The method can further include detecting at least one DL-TDoA message during the first time block of the ranging block, where no DL-TDoA messages are detected in the second time block of the ranging block. The method can further include, based on the detecting, allocating a second time block in a second ranging block of the DL-TDoA session to the HUS secondary session, where the second ranging block has a same structure as the ranging block.
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