Method for processing data using WLAN carrier and apparatus therefor
Provided are a method and apparatus for processing data by a terminal. The method ma include: receiving higher layer signaling including indication information requesting for configuring a terminal tunnel protocol entity for processing data transmitted/received through a WLAN carrier, configuring the terminal tunnel protocol entity on the basis of the indication information; and receiving bearer-specific user data and transmitting the bear-specific user data to a terminal user plane entity corresponding thereto.
1. A method of processing data by a user equipment (UE), the method comprising:
receiving, by UE, wireless local area network (WLAN) radio resource configuration-dedicated information for setting data transmission and reception using a WLAN carrier, from an evolved Node B (eNB);
setting, by the UE, a radio bearer group including one or more radio bearers to transmit and receive data through the WLAN carrier, based on the WLAN radio resource configuration-dedicated information; and
transmitting and receiving, by the UE, the data of the radio bearer group to and from the eNB through the WLAN carrier,
wherein the transmitting includes:
separating, by a packet data convergence protocol (PDCP) entity in the UE, data to be transmitted to the eNB into i) first data to be transmitted through an eNB carrier and ii) second data to be transmitted through the WLAN carrier,
wherein the WLAN radio resource configuration-dedicated information includes a WLAN identify (ID) and information for instructing a WLAN access authentication,
wherein when a handover of the UE is determined, the eNB transmits WLAN measurement information and the WLAN radio resource configuration-dedicated information to a target eNB, and
wherein the WLAN measurement information includes WLAN channel use rate information, backhaul bandwidth information, received signal strength indication information, WLAN ID, WLAN frequency band information, and WLAN frequency information.
2. The method of claim 1 , wherein the WLAN radio resource configuration-dedicated information corresponds to information configured to be distinguished from radio resource configuration-dedicated information of a radio bearer transmitting and receiving data through the eNB carrier.
3. The method of claim 1 , wherein the WLAN radio resource configuration-dedicated information is inserted into a handover preparation information message and transmitted to the target eNB with the handover preparation information message.
4. The method of claim 1 , wherein the target eNB transmits, to the UE, information for instructing the radio bearer group of the UE to maintain a structure configured to transmit and receive the data through the WLAN carrier.
5. A method of processing data by an evolved Node B (eNB), the method comprising:
generating, by the eNB, wireless local area network (WLAN) radio resource configuration-dedicated information for setting data transmission and reception using a WLAN carrier;
transmitting, by the eNB, the WLAN radio resource configuration-dedicated information to a user equipment (UE); and
transmitting and receiving, by the eNB, data of a radio bearer group including one or more radio bearers, to and from the UE, through the WLAN carrier,
wherein the WLAN radio resource configuration-dedicated information includes information for setting the radio bearer group to transmit and receive the data through the WLAN carrier;
wherein a packet data convergence protocol (PDCP) entity in the UE is configured to separate data to be transmitted to the eNB into i) first data to be transmitted through an eNB carrier and ii) second data to be transmitted through the WLAN carrier; and
wherein the receiving includes:
combining, by a PDCP entity in the eNB, the first data received through the eNB carrier and the second data received through the WLAN carrier,
wherein the WLAN radio resource configuration-dedicated information includes a WLAN identity (ID) and information for instructing a WLAN access authentication,
wherein the method further comprises determining a handover of the UE, wherein when the handover of the UE is determined, WLAN measurement information and the WLAN radio resource configuration-dedicated information are transmitted to a target eNB, and
wherein the WLAN measurement information includes WLAN channel use rate information, backhaul bandwidth information, received signal strength indication information, WLAN ID, WLAN frequency band information, and WLAN frequency information.
6. The method of claim 5 , wherein the WLAN radio resource configuration-dedicated information corresponds to information configured to be distinguished from radio resource configuration-dedicated information of a radio bearer transmitting and receiving data through the eNB carrier.
7. The method of claim 5 , wherein the WLAN radio resource configuration-dedicated information is inserted into a handover preparation information message and transmitted to the target eNB with the handover preparation information message.
8. The method of claim 5 , wherein the target eNB transmits, to the UE, information for instructing the radio bearer group of the UE to maintain a structure configured to transmit and receive the data through the WLAN carrier.
9. A user equipment (UE) for processing data, the UE comprising:
a receiver configured to receive wireless local area network (WLAN) radio resource configuration-dedicated information for setting data transmission and reception using a WLAN carrier, from an evolved Node B (eNB);
a controller configured to set a radio bearer group including one or more radio bearers to transmit and receive data through the WLAN carrier, based on the WLAN radio resource configuration-dedicated information; and
a transmitter configured to transmit the data of the radio bearer group to the eNB through the WLAN carrier,
wherein a packet data convergence protocol (PDCP) entity in the UE is configured to separate data to be transmitted to the eNB into i) first data to be transmitted through an eNB carrier and ii) second data to be transmitted through the WLAN carrier,
wherein the WLAN radio resource configuration-dedicated information includes at least one of a WLAN identity (ID) and information for instructing a WLAN access authentication, and
wherein, when a handover of the UE is determined, the eNB transmits WLAN measurement information and the WLAN radio resource configuration-dedicated information to a target eNB, and
wherein the WLAN measurement information includes WLAN channel use rate information, backhaul bandwidth information, received signal strength indication information, WLAN ID, WLAN frequency band information, and WLAN frequency information.
10. The UE of claim 9 , wherein the WLAN radio resource configuration-dedicated information corresponds to information configured to be distinguished from radio resource configuration-dedicated information of a radio bearer transmitting and receiving data through the eNB carrier.
11. The UE of claim 9 , wherein the WLAN radio resource configuration-dedicated information is inserted into a handover preparation information message and transmitted to the target eNB with the handover preparation information message.
12. The UE of claim 9 , wherein the target eNB transmits, to the UE, information for instructing the radio bearer group of the UE to maintain a structure configured to transmit and receive the data through the WLAN carrier.