User equipment-initiated beam search for fifth generation new radio
AssigneeGoogle Inc.
InventorsJibing Wang, Erik Richard Stauffer
Life of this patent
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Abstract
This document describes methods, devices, systems, and means for user equipment-initiated beam search for fifth generation new radio. A user equipment (110) determines that a first beam being used for wireless communication between the user equipment (110) and a base station (121) is unsatisfactory for communication. The user equipment (110) transmits uplink beam-scan pilots that cause the base station (121) to select a second beam for wireless communication. The user equipment (110) receives a beam scan response message from the base station (121) and establishes wireless communication with the base station (121) on a second beam based on information included in the received beam scan response message.
Claims24
A method for beam-searching for a fifth-generation new radio (5G NR) communication link between a user equipment (UE) and a base station, the method comprising:
- determining, by the user equipment, that a first beam being used for wireless communication between the user equipment and the base station is unsatisfactory for communication;
- based on the determining, transmitting, by the user equipment, uplink beam-scan pilots, the transmitting being effective to cause the base station to select a second beam for wireless communication;
- after transmitting the uplink beam-scan pilots, receiving a beam scan response message from the base station;
- and
- based on information included in the received beam scan response message, establishing, by the user equipment, wireless communication with the base station on the second beam.
A user equipment (UE), the user equipment comprising:
- a radio frequency (RF) transceiver;
- an antenna array coupled to the RF transceiver;
- and
- a processor and memory system, coupled to the RF transceiver, to implement a beam search manager application configured to:
- determine that a first beam being used for wireless communication between the user equipment and a base station is unsatisfactory for communication;
- transmit, using the RF transceiver and the antenna array, uplink beam-scan pilots, the transmission being effective to cause the base station to select a second beam for wireless communication;
- receive a beam scan response message from the base station indicating the second beam;
- and
- based on information included in the received beam scan response message, establish wireless communication with the base station on the second beam.
A method for beam-searching for a fifth-generation new radio (5G NR) communication link between a base station and a user equipment (UE), the method comprising:
- broadcasting, by the base station, an indicator for a pattern of pilot signals for uplink beam-scan pilots;
- receiving the uplink beam-scan pilots from the user equipment;
- selecting, using the received uplink beam-scan pilots, a beam for wireless communication between the user equipment and the base station;
- transmitting, by the base station, a beam scan response message including information that is usable by the user equipment to communicate with the base station using the beam;
- and
- establishing, by the base station, wireless communication with the user equipment via the beam.
Dependencies are inferred from the claim text.