Transmission of differential broadcast positioning sibs for reduced power consumption

A base station configured to support broadcast of positioning assistance data in a wireless network, comprising:

• an external interface configured to wirelessly communicate with a UE in the wireless network;
• at least one memory;
• at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to:
• broadcast, via the external interface, a first block of a positioning System Information Block (posSIB) comprising reference encoding for one or more blocks of a posSIB containing positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• broadcast, via the external interface, the second block of the posSIB that contains the positioning assistance data that has changed.

A method performed by a location server for supporting broadcast of positioning assistance data in a wireless network, the method comprising:

• determining the positioning assistance data to be broadcast by a base station including the positioning assistance data that has changed and the positioning assistance data that has not changed;
• producing a plurality of blocks of positioning System Information Blocks (posSIB) comprising:
• a first block of a posSIB that contains reference encoding for one or more blocks of a posSIB containing the positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed;
• the second block of the posSIB that contains the positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• sending the plurality of blocks the posSIBs to the base station.

A location server configured to support broadcast of positioning assistance data in a wireless network, comprising:

• an external interface configured to wirelessly communicate with a base station in the wireless network;
• at least one memory;
• at least one processor coupled to the external interface and the at least one memory, wherein the at least one processor is configured to:
• determine the positioning assistance data to be broadcast by the base station including the positioning assistance data that has changed and the positioning assistance data that has not changed;
• produce a plurality of blocks of positioning System Information Blocks (posSIB) comprising:
• a first block of a posSIB that contains reference encoding for one or more blocks of a posSIB containing the positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed;
• the second block of the posSIB that contains the positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• send, via the external interface, the plurality of blocks the posSIBs to the base station.

A location server configured to support broadcast of positioning assistance data in a wireless network, comprising:

• means for determining the positioning assistance data to be broadcast by a base station including the positioning assistance data that has changed and the positioning assistance data that has not changed;
• means for producing a plurality of blocks of positioning System Information Blocks (posSIB) comprising:
• a first block of a posSIB that contains reference encoding for one or more blocks of a posSIB containing the positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed;
• the second block of the posSIB that contains the positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• means for sending the plurality of blocks the posSIBs to the base station.

A non-transitory computer readable storage medium including program code stored thereon, the program code is operable to configure at least one processor in a location server to support broadcast of positioning assistance data in a wireless network, the program code comprising instructions to:

• determine the positioning assistance data to be broadcast by a base station including the positioning assistance data that has changed and the positioning assistance data that has not changed;
• produce a plurality of blocks of positioning System Information Blocks (posSIB) comprising:
• a first block of a posSIB that contains reference encoding for one or more blocks of a posSIB containing the positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed;
• the second block of the posSIB that contains the positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• send the plurality of blocks the posSIBs to the base station.

A user equipment (UE) configured to support broadcast of positioning assistance data in a wireless network, comprising:

• a wireless transceiver configured to wirelessly communicate with a base station in the wireless network;
• at least one memory;
• at least one processor coupled to the wireless transceiver and the at least one memory, wherein the at least one processor is configured to:
• receiving, via the wireless transceiver, and decoding a first block of a positioning System Information Block (posSIB) broadcast by the base station, the first block of the posSIB comprising reference encoding for one or more blocks of a posSIB containing positioning assistance data, the reference encoding indicating a second block of a posSIB that contains positioning assistance data that has changed compared to the positioning assistance data included in a reference posSIB;
• and
• receiving, via the wireless transceiver, and decoding the second block of the posSIB broadcast by the base station, the second block of the posSIB contains the positioning assistance data that has changed.