Method and apparatus for transmitting/receiving signal in mobile communication system supporting a plurality of carriers
First Claim
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1. A method by a user equipment (UE) in a communication system supporting carrier aggregation, the method comprising:
- receiving, from a base station, a first message for requesting UE capability information;
transmitting, to the base station, a second message including the UE capability information, wherein the UE capability information includes first information on band combinations supported by the UE, second information indicating whether the UE supports DC for each of the band combinations supported by the UE, third information on whether to support a split bearer and fourth information on whether to support a secondary cell group (SCG) bearer to an evolved universal terrestrial radio access (E-UTRA) includes supported band combination information element about combinations supported by the UE;
receiving, from the base station, a third message generated based on the first information and the second information, the third message including configuration information for SCG;
establishing an SCG RLC entity and performing a packet data convergence protocol (PDCP) reordering function if the configuration information indicates a change from an MCG bearer to a split bearer; and
releasing the SCG RLC entity if the configuration information indicates a change from the split bearer to the MCG bearer.
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Abstract
A method for transmitting terminal capability information in a communication system supporting a plurality of carriers is provided. The method includes transmitting a control message including terminal capability information, wherein the terminal capability information includes at least one of an information element (IE) indicating whether to support a multi-bearer, an IE indicating whether to support a secondary cell group (SCG) bearer, or an IE indicating whether to support dual connectivity (DC).
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Citations
24 Claims
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1. A method by a user equipment (UE) in a communication system supporting carrier aggregation, the method comprising:
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receiving, from a base station, a first message for requesting UE capability information; transmitting, to the base station, a second message including the UE capability information, wherein the UE capability information includes first information on band combinations supported by the UE, second information indicating whether the UE supports DC for each of the band combinations supported by the UE, third information on whether to support a split bearer and fourth information on whether to support a secondary cell group (SCG) bearer to an evolved universal terrestrial radio access (E-UTRA) includes supported band combination information element about combinations supported by the UE; receiving, from the base station, a third message generated based on the first information and the second information, the third message including configuration information for SCG; establishing an SCG RLC entity and performing a packet data convergence protocol (PDCP) reordering function if the configuration information indicates a change from an MCG bearer to a split bearer; and releasing the SCG RLC entity if the configuration information indicates a change from the split bearer to the MCG bearer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method by a base station in a communication system supporting carrier aggregation, the method comprising:
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transmitting, to a user equipment (UE), a first message for requesting UE capability information; receiving, from the UE, a second message including the UE capability information, wherein the UE capability information includes first information on band combinations supported by the UE, second information indicating whether the UE supports DC for each of the band combinations supported by the UE, third information on whether to support a split bearer and fourth information on whether to support a secondary cell group (SCG) bearer to an evolved universal terrestrial radio access (E-UTRA) includes supported band combination information element about combinations supported by the UE; transmitting, to the UE, a third message generated based on the first information and the second information, the third message including configuration information for SCG; establishing an SCG RLC entity and performing a packet data convergence protocol (PDCP) reordering function if the configuration information indicates a change from an MCG bearer to a split bearer; and releasing the SCG RLC entity if the configuration information indicates a change from the split bearer to the MCG bearer. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A user equipment (UE) in a communication system supporting carrier aggregation, the UE comprising:
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a transceiver; and at least one processor configured to control the transceiver to; receive, from a base station, a first message for requesting UE capability information, transmit, to the base station, a second message including the UE capability information, wherein the UE capability information includes first information on band combinations supported by the UE, second information indicating whether the UE supports DC for each of the band combinations supported by the UE, third information on whether to support a split bearer and fourth information on whether to support a secondary cell group (SCG) bearer to an evolved universal terrestrial radio access (E-UTRA) includes supported band combination information element about combinations supported by the UE, receive, from the base station, a third message generated based on the first information and the second information, the third message including configuration information for SCG, establish an SCG RLC entity and perform a packet data convergence protocol (PDCP) reordering function if the configuration information indicates a change from an MCG bearer to a split bearer, and release the SCG RLC entity if the configuration information indicates a change from the split bearer to the MCG bearer. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A base station in a communication system supporting carrier aggregation, the base station comprising:
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a transceiver; and at least one processor configured to control the transceiver to; transmit, to a user equipment (UE), a first message for requesting UE capability information, receive, from the UE, a second message including the UE capability information related to an evolved universal terrestrial radio access (E-UTRA), if radio access technology (RAT) information in the first message includes information indicating the E-UTRA, wherein the UE capability information includes first information on band combinations supported by the UE, second information indicating whether the UE supports DC for each of the band combinations supported by the UE, third information on whether to support a split bearer and fourth information on whether to support a secondary cell group (SCG) bearer to an evolved universal terrestrial radio access (E-UTRA) includes supported band combination information element about combinations supported by the UE, transmit, to the UE, a third message generated based on the first information and the second information, the third message including configuration information for SCG, establish an SCG RLC entity and perform a packet data convergence protocol (PDCP) reordering function if the configuration information indicates a change from an MCG bearer to a split bearer, and release the SCG RLC entity if the configuration information indicates a change from the split bearer to the MCG bearer. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification