Less-impacting connected mode mobility measurement
AssigneeVerizon Patent and Licensing Inc.
InventorsXin Wang, Lily Zhu, Andrew E. Youtz
Life of this patent
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Abstract
A method, apparatus, and system for lessening impact of connected mode mobility measurement is disclosed. A user equipment (UE) may reduce network management complexity by autonomously collecting signal quality measurements for neighboring cells. By autonomously tuning at opportune times for the UE, signal quality measurements may be obtained and reported to a serving cell. In another implementation, the UE examines the broadcast system information of both the serving base station against that of the neighboring base stations. Based on the included bandwidth information, the UE selects appropriate narrowband radio frequency subcarriers to perform signal quality measurement.
Claims20
A method comprising:
- establishing a connected state between a serving cell and a narrowband user equipment (UE) operated on a first set of narrowband RF subcarriers allocated by the serving cell for the UE;
- determining autonomously, by the UE, a first period of time to tune a narrowband RF transceiver included in the UE to a second set of narrowband RF subcarriers associated with a neighboring cell;
- while maintaining the connected state between the serving cell and the UE, tuning at a time according to the first period of time the narrowband RF transceiver to the second set of narrowband RF subcarriers and receiving first data from the neighboring cell via the second set of narrowband RF subcarriers;
- tuning, after receiving the first data from the neighboring cell, the narrowband RF transceiver to the first set of narrowband RF subcarriers allocated by the serving cell;
- obtaining a signal quality measurement for the received first data;
- and
- transmitting the signal quality measurement to the serving cell.
An apparatus comprising:
- at least one processor;
- a narrowband radio frequency (RF) transceiver coupled to the at least one processor;
- a memory coupled to the at least one processor, the memory storing instructions that when executed cause the at least one processor to:
- establish a connected state between a serving cell and a narrowband user equipment (UE) operated on a first set of narrowband RF subcarriers allocated by the serving cell for the UE;
- determine autonomously a first period of time to tune the narrowband RF transceiver to a second set of narrowband RF subcarriers that is different from the first set of narrowband RF subcarriers;
- while the apparatus remains associated to the current cell, tune at a time according to the first period of time the narrowband RF transceiver to the second set of narrowband RF subcarriers and receiving first RF data from a neighboring base station via the second set of narrowband RF subcarriers;
- tune, after receiving the first RF data from the neighboring cell, the narrowband RF transceiver to the first set of narrowband RF subcarriers allocated by the serving cell;
- obtain signal quality measurement for the received first RF data;
- and
- transmit the signal quality measurement to the serving cell.
A system for reduced signal quality measurement overhead comprising:
- a serving mobile base station;
- a plurality of neighboring mobile base stations adjacent to the serving mobile base station;
- and
- a narrowband user equipment (UE), wherein the UE is associated with the serving mobile base station, wherein the UE is configured to:
- establish a connected state between a serving cell and a narrowband user equipment (UE) operated on a first set of narrowband RF subcarriers allocated by the serving cell for the UE;
- determine autonomously, by the UE, a first period of time to tune the narrowband RF transceiver to a second set of narrowband RF subcarriers associated with a neighboring base station selected from the plurality of neighboring mobile base stations;
- while the UE remains associated to the serving base station, tune at a time associated with the first period of time the narrowband RF transceiver to the second set of narrowband RF subcarriers and receiving first data from the plurality of neighboring base stations via the second set of narrowband RF subcarriers;
- tune, after receiving the first data from the neighboring mobile base station, the narrowband RF transceiver to the first set of narrowband RF subcarriers allocated by the serving cell;
- obtain signal quality measurement for the received first data;
- and
- transmit the signal quality measurement to the serving mobile base station.
Dependencies are inferred from the claim text.