Enhanced position accuracy for positioning performance improvement

A user equipment, comprising:

• one or more memories;
• and
• one or more processors communicatively coupled to the one or more memories, the one or more processors being configured to:
• determine a first acquired satellite vehicle list comprising one or more first satellite vehicles from which the user equipment receives signals within a current epoch;
• determine, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• add, for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• determine whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• and
• determine, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list;
• wherein to determine whether the first measurement error associated with the first satellite vehicle indicates the line of sight, the one or more processors are configured to:
• compare the first measurement error with a horizontal uncertainty;
• and
• determine, in response to determining that the first measurement error is less than the horizontal uncertainty, that the first satellite vehicle has the line of sight with the user equipment.

A method for determining a position of a user equipment, comprising:

• determining a first acquired satellite vehicle list comprising one or more first satellite vehicles from which the user equipment receives signals within a current epoch;
• determining, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• adding, for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• determining whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• determining, in response to the number of satellite vehicles in the active satellite vehicle list not meeting the threshold, a second acquired satellite vehicle list comprising one or more second satellite vehicles from which the user equipment received signals within one or more prior epochs;
• determining, for each second satellite vehicle in the second acquired satellite vehicle list, whether a second measurement error associated with the second satellite vehicle indicates a line of sight between the user equipment and the second satellite vehicle;
• adding, for each second satellite vehicle in the second acquired satellite vehicle list, in response to the second measurement error indicating the line of sight between the user equipment and the second satellite vehicle, the second satellite vehicle to the active satellite vehicle list;
• determining whether the number of satellite vehicles in the active satellite vehicle list meets the threshold;
• and
• determining, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list.

A method for determining a position of a user equipment, comprising:

• determining a first acquired satellite vehicle list comprising one or more first satellite vehicles from which the user equipment receives signals within a current epoch;
• determining, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• adding, for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• determining whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• and
• determining, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list;
• wherein the determining whether the first measurement error associated with the first satellite vehicle indicates the line of sight, comprises:
• comparing the first measurement error with a horizontal uncertainty;
• and
• determining, in response to determining that the first measurement error is less than the horizontal uncertainty, that the first satellite vehicle has the line of sight with the user equipment.

A computing device, comprising:

• means for determining a first acquired satellite vehicle list comprising one or more first satellite vehicles from which a user equipment receives signals within a current epoch;
• means for determining, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• means for adding, for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• means for determining whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• means for determining, in response to the number of satellite vehicles in the active satellite vehicle list not meeting the threshold, a second acquired satellite vehicle list comprising one or more second satellite vehicles from which the user equipment received signals within one or more prior epochs;
• means for determining, for each second satellite vehicle in the second acquired satellite vehicle list, whether a second measurement error associated with the second satellite vehicle indicates a line of sight between the user equipment and the second satellite vehicle;
• means for adding, for each second satellite vehicle in the second acquired satellite vehicle list, in response to the second measurement error indicating the line of sight between the user equipment and the second satellite vehicle, the second satellite vehicle to the active satellite vehicle list;
• means for determining whether the number of satellite vehicles in the active satellite vehicle list meets the threshold;
• and
• means for determining, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list.

A computing device, comprising:

• means for determining a first acquired satellite vehicle list comprising one or more first satellite vehicles from which a user equipment receives signals within a current epoch;
• means for determining, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• means for adding, for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• means for determining whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• and
• means for determining, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list;
• wherein the means for determining whether the first measurement error associated with the first satellite vehicle indicates the line of sight, comprises:
• means for comparing the first measurement error with a horizontal uncertainty;
• and
• means for determining, in response to determining that the first measurement error is less than the horizontal uncertainty, that the first satellite vehicle has the line of sight with the user equipment.

A non-transitory, processor-readable storage medium comprising processor-readable instructions to cause one or more processors to:

• determine a first acquired satellite vehicle list comprising one or more first satellite vehicles from which a user equipment receives signals within a current epoch;
• determine, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• add for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• determine whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• determine, in response to the number of satellite vehicles in the active satellite vehicle list not meeting the threshold, a second acquired satellite vehicle list comprising one or more second satellite vehicles from which the user equipment received signals within one or more prior epochs;
• determine, for each second satellite vehicle in the second acquired satellite vehicle list, whether a second measurement error associated with the second satellite vehicle indicates a line of sight between the user equipment and the second satellite vehicle;
• add, for each second satellite vehicle in the second acquired satellite vehicle list, in response to the second measurement error indicating the line of sight between the user equipment and the second satellite vehicle, the second satellite vehicle to the active satellite vehicle list;
• determine whether the number of satellite vehicles in the active satellite vehicle list meets the threshold;
• and
• determine, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list.

A non-transitory, processor-readable storage medium comprising processor-readable instructions to cause one or more processors to:

• determine a first acquired satellite vehicle list comprising one or more first satellite vehicles from which a user equipment receives signals within a current epoch;
• determine, for each first satellite vehicle in the first acquired satellite vehicle list, whether a first measurement error associated with the first satellite vehicle indicates a line of sight between the user equipment and the first satellite vehicle;
• add for each first satellite vehicle in the first acquired satellite vehicle list, in response to the first measurement error indicating the line of sight between the user equipment and the first satellite vehicle, the first satellite vehicle to an active satellite vehicle list;
• determine whether a number of satellite vehicles in the active satellite vehicle list meets a threshold;
• and
• determine, in response to the number of satellite vehicles in the active satellite vehicle list meeting the threshold, a position of the user equipment based on the signals received from the satellite vehicles in the active satellite vehicle list;
• wherein to determine whether the first measurement error associated with the first satellite vehicle indicates the line of sight, the processor-readable instructions include processor-readable instructions to cause the one or more processors to:
• compare the first measurement error with a horizontal uncertainty;
• and
• determine, in response to determining that the first measurement error is less than the horizontal uncertainty, that the first satellite vehicle has the line of sight with the user equipment.