Conditions on triggering GNSS position fix
AssigneeMediaTek Singapore Pte. Ltd.
InventorsWen Tang, Gilles Charbit
Life of this patent
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Abstract
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. In certain configurations, the UE determines a global navigation satellite system (GNSS) validity duration or a remaining GNSS validity duration indicating a time duration for which a GNSS position fix is valid. The UE reports, to a base station, GNSS assistance information including the GNSS validity duration or the remaining GNSS validity duration. The UE attempts to acquire, at the UE and in a radio resource control (RRC) connected state, the GNSS position fix periodically or aperiodically.
Claims18
A method of wireless communication of a user equipment (UE), comprising:
- determining, at the UE, a global navigation satellite system (GNSS) validity duration or a remaining GNSS validity duration indicating a time duration for which a GNSS position fix is valid;
- reporting, from the UE to a base station, GNSS assistance information including the GNSS validity duration or the remaining GNSS validity duration;
- attempting to acquire, at the UE and in a radio resource control (RRC) connected state, the GNSS position fix periodically or aperiodically;
- and
- when the UE is attempting to acquire the GNSS position fix aperiodically:
- monitoring an aperiodic trigger transmitted from the base station;
- and
- receiving the aperiodic trigger and determining a measurement gap, wherein the attempt to acquire the GNSS position fix is conducted in the measurement gap.
A method of wireless communication of a base station, comprising:
- receiving, from a user equipment (UE), global navigation satellite system (GNSS) assistance information including a GNSS validity duration or a remaining GNSS validity duration indicating a time duration for which a GNSS position fix at the UE is valid;
- and
- sending an instruction to the UE in a radio resource control (RRC) connected state for the UE in the RRC connected state to acquire the GNSS position fix periodically or aperiodically;
- wherein when the instruction is for the UE to acquire the GNSS position fix aperiodically:
- the instruction is sent to the UE for determining a measurement gap and the instruction is an aperiodic trigger, or
- the instruction is an aperiodic trigger and a higher layer parameter, wherein a new timer is configured by the higher layer parameter, or
- the instruction is an aperiodic trigger and a measurement parameter, wherein the measurement parameter comprises at least one of:
- a measurement time duration for acquiring the GNSS position fix, and
- a measurement time offset for the offset to start the measurement time duration for acquiring the GNSS position fix.
Dependencies are inferred from the claim text.