Apparatus and method for routing data packet to user equipment in LTE-WLAN aggregation system
The present disclosure relates to a communication method and system for converging a 5 th -generation (5G) communication system for supporting higher data rates beyond a 4 th -generation (4G) system with a technology for internet of things (IoT). The present disclosure may be applied to intelligent services based on 5G communication technology and 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 system and a method for routing a data packet to a user equipment (UE) in a long term evolution-wireless local area network (LTE-WLAN) aggregation are provided. The system includes an evolved node B (eNB) with a packet data convergence protocol (PDCP) adaptation layer that adds a header to the data packet.
1. A method of transmitting data by a base station in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), capability information indicating whether a long term evolution-wireless local area network (LTE-WLAN) aggregation is supported by the UE; and
if the LTE-WLAN aggregation is supported by the UE and the LTE-WLAN aggregation is enabled for the UE:
generating data to which a header is added, wherein the header comprises a bearer identification (ID) for identifying an upper layer in the UE to which the data is destined, and
transmitting the data to the UE by using the LTE-WLAN aggregation.
2. The method of claim 1 , wherein the capability information is received by radio resource control (RRC) signaling.
3. The method of claim 1 , wherein the transmitting comprises:
transmitting the data to the UE via a WLAN access point (AP).
4. The method of claim 3 , further comprising:
establishing a tunnel with the WLAN AP based on at least one of an IP address of the UE or a MAC address of the UE,
wherein a tunnel ID is exchanged between the eNB and the WLAN AP.
5. The method of claim 1 , wherein the header comprises at least one of a quality of service (QoS) or information for mapping a radio network temporary identifier (RNTI) to WLAN ID.
6. The method of claim 1 , wherein the upper layer is a packet data convergence protocol (PDCP) layer.
7. A base station in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive, from a user equipment (UE), capability information indicating whether a long term evolution-wireless local area network (LTE-WLAN) aggregation is supported by the UE, and
if the LTE-WLAN aggregation is supported by the UE and the LTE-WLAN aggregation is enabled for the UE:
generate data to which a header is added, wherein the header comprises a bearer identification (ID) for identifying an upper layer in the UE to which the data is destined, and
transmit the data to the UE by using the LTE-WLAN aggregation.
8. The base station of claim 7 , wherein the capability information is received by radio resource control (RRC) signaling.
9. The base station of claim 7 , wherein the at least one processor is further configured to transmit the data to the UE via a WLAN access point (AP).
10. The base station of claim 9 ,
wherein the at least one processor is further configured to establish a tunnel with the WLAN AP based on at least one of an IP address of the UE or a MAC address of the UE, and
wherein a tunnel ID is exchanged between the eNB and the WLAN AP.
11. The base station of claim 7 , wherein the header comprises at least one of a quality of service (QoS) or information for mapping a radio network temporary identifier (RNTI) to WLAN ID.
12. The base station of claim 7 , wherein the upper layer is a packet data convergence protocol (PDCP) layer.
13. A method of receiving data by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting, to a base station, capability information indicating whether a long term evolution-wireless local area network (LTE-WLAN) aggregation is supported by the UE; and
if the LTE-WLAN aggregation is supported by the UE and the LTE-WLAN aggregation is enabled for the UE, receiving data to which a header is added from the base station by using the LTE-WLAN aggregation,
wherein the header comprises a bearer identification (ID) for identifying an upper layer in the UE to which the data is destined.
14. The method of claim 13 , wherein the capability information is transmitted by radio resource control (RRC) signaling.
15. The method of claim 13 , wherein the receiving of the data packet comprises:
receiving the data from the base station via a WLAN access point (AP).
16. The method of claim 13 , wherein the header comprises at least one of a quality of service (QoS) or information for mapping a radio network temporary identifier (RNTI) to WLAN ID.
17. The method of claim 13 , wherein the upper layer is a packet data convergence protocol (PDCP) layer.
18. A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a base station, capability indication indicating whether a long term evolution-wireless local area network (LTE-WLAN) aggregation is supported by the UE, and
if the LTE-WLAN aggregation is supported by the UE and the LTE-WLAN aggregation is enabled for the UE, receive data to which a header is added from the base station by using the LTE-WLAN aggregation,
wherein the header comprises a bearer identification (ID) for identifying an upper layer in the UE to which the data is destined.
19. The UE of claim 18 , wherein the capability information is transmitted by radio resource control (RRC) signaling.
20. The UE of claim 18 , wherein the at least one processor is further configured to receive the data from the base station via a WLAN access point (AP).
21. The UE of claim 18 , wherein the header comprises at least one of a quality of service (QoS) or information for mapping a radio network temporary identifier (RNTI) to WLAN ID.
22. The UE of claim 18 , wherein the upper layer is a packet data convergence protocol (PDCP) layer.