Method and apparatus for reporting uplink Tx direct current location by considering intra-band UL CA in next-generation mobile communication system
The present disclosure relates to a communication technique for merging an IoT technology with a 5G communication system for supporting a higher data transmission rate than a 4G system and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security- and safety-related services, and the like) on the basis of a 5G communication technology and an IoT-related technology. The present disclosure proposes a method and apparatus for reporting a UL Tx direct current location by considering intra-band uplink (UL) carrier aggregation (CA) in a wireless communication system.
1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting, to a base station (BS), a UE capability including information indicating that the UE supports reporting of an uplink transmit (Tx) direct current location for an intra-band uplink carrier aggregation (CA);
receiving, from the BS, a radio resource control (RRC) reconfiguration message including information indicating the reporting of the uplink Tx direct current location for the intra-band uplink CA; and
as a response to the RRC reconfiguration message, transmitting, to the BS, an RRC reconfiguration complete message including an uplink Tx direct current list for a first bandwidth part (BWP) of a first cell and a second BWP of a second cell,
wherein the uplink Tx direct current list includes a single serving cell index to be used as a reference for an uplink Tx direct current location across the first BWP and the second BWP, and the uplink Tx direct current location across the first BWP and the second BWP with respect to the single serving cell index.
2 . The method of claim 1 ,
wherein the uplink Tx direct current list further includes a first BWP identifier for the first BWP of the first cell and a second BWP identifier for the second BWP of the second cell.
3 . The method of claim 1 ,
wherein the information indicating the reporting of the uplink Tx direct current location is configured in at least one of master cell group information included in the RRC reconfiguration message or secondary cell group information included in the RRC reconfiguration message.
4 . A method performed by a base station (BS) in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), a report of a UE capability including information indicating that the UE supports reporting of an uplink transmit (Tx) direct current location for an intra-band uplink carrier aggregation (CA);
transmitting, to the UE, a radio resource control (RRC) reconfiguration message including information indicating the reporting of the uplink Tx direct current location for the intra-band uplink CA; and
as a response to the RRC reconfiguration message, receiving, from the UE an RRC reconfiguration complete message including an uplink Tx direct current list for a first bandwidth part (BWP) of a first cell and a second BWP of a second cell,
wherein the uplink Tx direct current list includes a single serving cell index to be used as a reference for an uplink Tx direct current location across the first BWP and the second BWP, and the uplink Tx direct current location across the first BWP and the second BWP with respect to the single serving cell index.
5 . The method of claim 4 ,
wherein the uplink Tx direct current list further includes a first BWP identifier for the first BWP of the first cell and a second BWP identifier for the second BWP of the second cell.
6 . The method of claim 4 ,
wherein the information indicating the reporting of the uplink Tx direct current location is configured in at least one of master cell group information included in the RRC reconfiguration message or secondary cell group information included in the RRC reconfiguration message.
7 . A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver configured to transmit and receive a signal; and
a controller connected to the transceiver,
wherein the controller is configured to:
transmit, to a base station (BS), a UE capability including information indicating that the UE supports reporting of an uplink transmit (Tx) direct current location for an intra-band uplink carrier aggregation (CA),
receive, from the BS, a radio resource control (RRC) reconfiguration message including information indicating the reporting of the uplink Tx direct current location for the intra-band uplink CA, and
as a response to the RRC reconfiguration message, transmit, to the BS, an RRC reconfiguration complete message including an uplink Tx direct current list for a first bandwidth part (BWP) of a first cell and a second BWP of a second cell,
wherein the uplink Tx direct current list includes a single serving cell index to be used as a reference for an uplink Tx direct current location across the first BWP and the second BWP, and the uplink Tx direct current location across the first BWP and the second BWP with respect to the single serving cell index.
8 . The UE of claim 7 ,
wherein the uplink Tx direct current list further includes a first BWP identifier for the first BWP of the first cell and a second BWP identifier for the second BWP of the second cell.
9 . The UE of claim 7 ,
wherein information indicating the reporting of the uplink Tx direct current location is configured in at least one of master cell group information included in the RRC reconfiguration message or secondary cell group information included in the RRC reconfiguration message.
10 . A base station (BS) in a wireless communication system, the BS comprising:
a transceiver configured to transmit and receive a signal; and
a controller connected to the transceiver,
wherein the controller is configured to:
receive, from a user equipment (UE), a report of a UE capability including information indicating that the UE supports reporting of an uplink transmit transmit (Tx) direct current location for an intra-band uplink carrier aggregation (CA),
transmit, to the UE, a radio resource control (RRC) reconfiguration message including information indicating the reporting of the uplink Tx direct current location for the intra-band uplink CA, and
as a response to the RRC reconfiguration message, receive, from the UE, an RRC reconfiguration complete message including an uplink Tx direct current list for a first bandwidth part (BWP) of a first cell and a second BWP of a second cell,
wherein the uplink Tx direct current list includes a single serving cell index to be used as a reference for an uplink Tx direct current location across the first BWP and the second BWP, and the uplink Tx direct current location across the first BWP and the second BWP with respect to the single serving cell index.
11 . The BS of claim 10 ,
wherein the uplink Tx direct current list further includes a first BWP identifier for the first BWP of the first cell and a second BWP identifier for the second BWP of the second cell.
12 . The BS of claim 10 ,
wherein information indicating the reporting of the uplink Tx direct current location is configured in at least one of master cell group information included in the RRC reconfiguration message or secondary cell group information included in the RRC reconfiguration message.