Random access procedure in next generation wireless networks
AssigneeFG Innovation Company Limited
InventorsHung-Chen Chen, Mei-Ju Shih, Chie-Ming Chou
Life of this patent
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Abstract
Some of the present implementations provide a method for a user equipment (UE) for performing a random access (RA) procedure. The method transmits, to a base station, an RA preamble. The method then receives, from the base station, an RA response (RAR) associated with the RA preamble, the RAR containing a media access control (MAC) payload. The MAC payload identifies a set of one or more uplink (UL) grants for the UE. The method selects a UL grant from the set of one or more UL grants identified by the MAC payload for transmitting an Msg3 to the base station.
Claims10
A method for a user equipment (UE) for performing a random access (RA) procedure, the method comprising:
- transmitting, to a base station, an RA preamble;
- receiving, from the base station, an RA response (RAR) associated with the RA preamble, the RAR containing a media access control (MAC) payload that identifies a set of one or more uplink (UL) grants for the UE;
- selecting, a UL grant from the set of one or more UL grants identified by the MAC payload for transmitting a scheduled UL transmission (Msg3) to the base station;
- and
- before selecting the UL grant, determining that a listen-before-talk (LBT) procedure performed on the UL grant is successful.
A user equipment (UE) comprising:
- one or more non-transitory computer-readable media having computer-executable instructions for performing a random access (RA) procedure;
- and
- at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to:
- transmit, to a base station, an RA preamble;
- receive, from the base station, an RA response (RAR) associated with the RA preamble, the RAR containing a media access control (MAC) payload that identifies a set of one or more uplink (UL) grants for the UE;
- select a UL grant from the set of one or more UL grants identified by the MAC payload for transmitting a scheduled UL transmission (Msg3) to the base station;
- and
- before selecting the UL grant, determine that a listen-before-talk (LBT) procedure performed on the UL grant is successful.
Dependencies are inferred from the claim text.