Method and apparatus for managing dormant bandwidth part in next-generation mobile communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsDonggun Kim, Soenghun Kim
Life of this patent
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Abstract
Disclosed are a communication scheme and a system thereof for converging IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. The disclosure can be applied to intelligent services (for example, services related to a smart home, smart building, smart city, smart car, connected car, health care, digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. The disclosure discloses a method and an apparatus for efficiently operating a dormant BWP.
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) message configuring a secondary cell (SCell) of a cell group, the RRC message including first information indicating a state of the SCell, second information on a bandwidth part (BWP) identifier (ID) of a dormant BWP for the SCell, third information on a first active downlink BWP for the SCell, and fourth information on channel state information (C SI);
- identifying whether the state of the SCell is indicated as an activated state based on the first information included in the RRC message;
- identifying whether the first active downlink BWP for the SCell is indicated as the dormant BWP based on the second information and the third information included in the RRC message, in case that the state of the SCell is indicated as the activated state;
- performing a CSI measurement for the dormant BWP, in case that the SCell is indicated as the activated state and the first active downlink BWP for the SCell is indicated as the dormant BWP;
- and
- transmitting, to the base station, a CSI report for the dormant BWP based on the fourth information.
A terminal in a wireless communication system, the terminal comprising:
- a transceiver configured to transmit and receive a signal;
- and
- a controller coupled with the transceiver and configured to:
- receive, from a base station, a radio resource control (RRC) message configuring a a secondary cell (SCell) of a cell group, the RRC message including first information indicating a state of the SCell, second information on a bandwidth part (BWP) identifier (ID) of a dormant BWP for the SCell, third information on a first active downlink BWP for the SCell, and fourth information on channel state information(CSI),
- identify whether the state of the SCell is indicated as an activated state based on the first information included in the RRC message,
- identify whether the first active downlink BWP for the SCell is indicated as the dormant BWP based on the second information and the third information included in the RRC message, in case that the state of the SCell is indicated as the activated state,
- perform a CSI measurement for the dormant BWP, in case that the SCell is indicated as the activated state and the first active downlink BWP for the SCell is indicated as the dormant BWP, and
- transmit, to the base station, a CSI report for the dormant BWP based on the fourth information.
A method performed by a base station in a wireless communication system, the method comprising:
- transmitting, to a terminal, a radio resource control (RRC) message configuring a secondary cell (SCell) of a cell group, the RRC message including first information indicating a state of the SCell, second information on a bandwidth part (BWP) identifier (ID) of a dormant BWP for the SCell, third information on a first active downlink BWP for the SCell, and fourth information on channel state information (CSI);
- and
- receiving, from the terminal, a CSI report for the dormant BWP based on the fourth information, in case that the state of the SCell is indicated as an activated state based on the first information and the first active downlink BWP for the SCell is indicated as the dormant BWP based on the second information and third information.
A base station in a wireless communication system, the base station comprising:
- a transceiver configured to transmit and receive a signal;
- and
- a controller coupled with the transceiver and configured to:
- transmit, to a terminal, a radio resource control (RRC) message configuring a secondary cell (SCell) of a cell group, the RRC message including first information indicating a state of the SCell, second information on a bandwidth part (BWP) identifier (ID) of a dormant BWP for the SCell, third information on a first active downlink BWP for the SCell, and fourth information on channel state information(CSI), and
- receive, from the terminal, a CSI report for the dormant BWP based on the fourth information, in case that the state of the SCell is indicated as an activated state based on the first information and the first active downlink BWP for the SCell is indicated as the dormant BWP based on the second information and the third information.
Dependencies are inferred from the claim text.