for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access. TS 23.401, 3rd Generation Partnership Project (3GPP), March 2012. 30. 3GPP. Architecture enhancements for non-3GPP accesses. TS 23.402, 3rd Generation Partnership Project (3GPP), March 2012. 31. Simpson, W. The Point-to-Point Protocol (PPP). RFC 1548, Internet Engineering Task Force, December 1993. 32. 3GPP. Technical realization of the Short Message Service (SMS). TS 23.040, 3rd Generation Partnership Project (3GPP), September 2010. 33. Postel, J. Internet Protocol. RFC 0791, Internet Engineering Task Force, September 1981. 34. Postel, J. Transmission Control Protocol. RFC 0793, Internet Engineering Task Force, September 1981. 35. 3GPP. Radio Link Control (RLC) protocol specification. TS 25.322, 3rd Generation Partnership Project (3GPP), June 2011. 36. 3GPP. Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification. TS 36.323, 3rd Generation Partnership Project (3GPP), January 2010. 37. Gundavelli, S., Leung, K., Devarapalli, V., Chowdhury, K., and Patil, B. Proxy Mobile IPv6. RFC 5213, Internet Engineering Task Force, August 2008. 38. Farinacci, D., Li, T., Hanks, S., Meyer, D., and Traina, P. Generic Routing Encapsulation (GRE). RFC 2784, Internet Engineering Task Force, March 2000. 39. Muhanna, A., Khalil, M., Gundavelli, S., and Leung, K. Generic Routing Encapsulation (GRE) Key Option for Proxy Mobile IPv6. RFC 5845, Internet Engineering Task Force, June 2010. 40. 3GPP2. 3rd Generation Partnership Project2 (3GPP2), http://www.3gpp2.org/. 41. Forum, W. WIMAX Forum, http://www.wimaxforum.org/ 42. Muhanna, A., Khalil, M., Gundavelli, S., Chowdhury, K., and egani, P. Y. Binding Revocation for IPv6 Mobility. RFC 5846, Internet Engineering Task Force, June 2010. 43. Devarapalli, V., Koodli, R., Lim, H., Kant, N., Krishnan, S., and Laganier, J. Heartbeat Mechanism for Proxy Mobile IPv6. RFC 5847, Internet Engineering Task Force, June 2010. 44. Soliman, H. Mobile IPv6 Support for Dual Stack Hosts