Method and apparatus for providing contention-based resource zones in a wireless network
AssigneeMotorola Mobility LLC
InventorsRapeepat Ratasuk, Igor Filipovich, Rangsan Leelahakriengkrai, Ivan N. Vukovic
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Abstract
A base station employs control signaling for contention-based uplink access from user equipment devices to the base station. Contention-based access configuration is performed via physical downlink control channel signaling. Configuration data sent to the user equipment devices identifies multiple contention-based access zones, along with minimum power headroom values for each contention-based access zone. A probability factor may be used to lower collision possibility by influencing whether the user equipment devices perform contention-based uplink access.
Claims14
A method of operating a base station in a wireless communication system, the method comprising:
- determining a plurality of contention-based resource zones for a shared channel of the base station, each of the contention-based resource zones comprising a respective number of physical resource blocks;
- assigning a respective modulation and coding scheme to each of the contention-based resource zones, resulting in assigned modulation and coding schemes;
- obtaining, for each of the contention-based resource zones, a respective minimum power headroom value to be considered by user equipment devices in the wireless communication system, resulting in obtained minimum power headroom values;
- and
- sending contention-based configuration data to user equipment devices in the wireless communication system, the contention-based configuration data comprising zone data that identifies the plurality of contention-based resource zones, modulation and coding scheme data that identifies the assigned modulation and coding schemes, and minimum power headroom data that identifies the obtained minimum power headroom values.
A base station for operation in a wireless communication system, the base station comprising:
- a wireless communication module that supports a shared channel for user equipment devices in the wireless communication system, and that supports a signaling channel between the base station and the user equipment devices;
- and
- a controller operatively associated with the wireless communication module and configured to prepare contention-based configuration data for the user equipment devices;
- wherein
- the wireless communication module sends the contention-based configuration data to the user equipment devices using the signaling channel;
- the contention-based configuration data comprises:
- zone data that identifies a plurality of contention-based resource zones for the shared channel, each of the contention-based resource zones comprising a respective number of physical resource blocks;
- modulation and coding scheme data that identifies modulation and coding schemes assigned to the contention-based resource zones;
- and
- minimum power headroom data that identifies minimum power headroom values assigned to the contention-based resource zones;
- and
- contention-based uplink transmissions by the user equipment devices are influenced by the minimum power headroom values.
Dependencies are inferred from the claim text.