Channel access method, user equipment, and base station
AssigneeEssen Innovation Company Limited
InventorChun-Che CHIEN
Life of this patent
Estimating the term…
Abstract
A user equipment (UE) executes a semi-static channel access method during a random access procedure in an unlicensed band. A base station transmits configuration information and downlink (DL) information to the UE in a fixed frame period (FFP) according to a set of FFP parameters associated with the base station. The UE determines whether to initiate a channel occupancy time (COT) in an FFP according to a set of FFP parameters associated with the UE based on one or more of: at least one condition in the configuration information, at least one condition in scheduling information, at least one condition in DL information, and a detection result of detecting transmission of the DL information. The base station determines whether to use the UE-initiated COT shared from the UE.
Claims57
A channel access method in unlicensed band for execution by a user equipment (UE), comprising:
- receiving configuration information and scheduling information from a base station;
- detecting transmission of downlink (DL) information in a fixed frame period (FFP) according to a set of FFP parameters associated with the base station;
- determining whether to initiate a channel occupancy time (COT) in an FFP according to a set of FFP parameters associated with the UE based on at least one condition in the configuration information, at least one condition in the scheduling information, and a detection result of detecting the transmission of the DL information;
- initiating the COT in the FFP according to the set of FFP parameters associated with the UE after a successful listen-before-talk (LBT) upon affirming the determining as to whether to initiate the COT;
- transmitting a UL burst in one or more symbols that are valid in a region of the FFP according to the set of FFP parameters associated with the UE;
- and
- receiving a DL burst from the base station in one or more symbols that are valid in the region of the FFP according to the set of FFP parameters associated with the UE when the UE shares with the base station the COT initiated by the UE.
28-29. (canceled)
A channel access method in an unlicensed band for execution by a base station, comprising:
- transmitting configuration information and scheduling information;
- transmitting downlink (DL) information in a fixed frame period (FFP) according to a set of FFP parameters associated with the base station;
- receiving an uplink (UL) burst in one or more symbols that are valid in a region of a fixed frame period (FFP) according to a set of FFP parameters associated with a user equipment (UE);
- and
- transmitting a DL burst in one or more symbols that are valid in the region of the FFP according to the set of FFP parameters associated with the UE when the base station uses a channel occupation time (COT) initiated by the UE.
58-59. (canceled)
Dependencies are inferred from the claim text.