Method and apparatus for small data transmission
AssigneeSamsung Electronics Co., Ltd.
InventorsAnil AGIWAL, Sangbum KIM, Soenghun KIM
Life of this patent
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Abstract
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for small data transmission are provided.
Claims20
A method performed by a terminal in a wireless communication system, the method comprising:
- receiving, from a base station, a radio resource control (RRC) release message including at least one configured grant uplink resource for a small data transmission (SDT);
- identifying an uplink carrier among a normal uplink (NUL) or a supplementary uplink (SUL), based on an SDT procedure initiated while the terminal is in an RRC inactive state;
- identifying a synchronization signal block (SSB) among SSBs associated with configured grant uplink resources for the SDT procedure on the identified uplink carrier;
- and
- transmitting, to the base station, an uplink data in an uplink grant corresponding to the identified SSB.
A method performed by a base station in a wireless communication system, the method comprising:
- transmitting, to a terminal, a radio resource control (RRC) release message including at least one configured grant uplink resource for a small data transmission (SDT);
- and
- receiving, from the terminal, an uplink data in an uplink grant corresponding to a synchronization signal block (SSB), based on an SDT procedure initiated while the terminal is in an RRC inactive state,
- wherein the SSB is one among SSBs associated with configured grant uplink resources for the SDT procedure on an uplink carrier, and
- wherein the uplink carrier is one among a normal uplink (NUL) or a supplementary uplink (SUL).
A terminal in a wireless communication system, the terminal comprising:
- a transceiver;
- and
- a controller configured to:
- receive, from a base station via the transceiver, a radio resource control (RRC) release message including at least one configured grant uplink resource for a small data transmission (SDT),
- identify an uplink carrier among a normal uplink (NUL) or a supplementary uplink (SUL), based on an SDT procedure initiated while the terminal is in an RRC inactive state,
- identify a synchronization signal block (SSB) among SSBs associated with configured grant uplink resources for the SDT procedure on the identified uplink carrier, and
- transmit, to the base station via the transceiver, an uplink data in an uplink grant corresponding to the identified SSB.
A base station in a wireless communication system, the base station comprising:
- a transceiver;
- and
- a controller configured to:
- transmit, to a terminal via the transceiver, a radio resource control (RRC) release message including at least one configured grant uplink resource for a small data transmission (SDT), and
- receive, from the terminal via the transceiver, an uplink data in an uplink grant corresponding to a synchronization signal block (SSB), based on an SDT procedure initiated while the terminal is in an RRC inactive state,
- wherein the SSB is one among SSBs associated with configured grant uplink resources for the SDT procedure on an uplink carrier, and
- wherein the uplink carrier is one among a normal uplink (NUL) or a supplementary uplink (SUL).
Dependencies are inferred from the claim text.