SMS over LTE: services, architecture and protocols
type: Dataset
description: In recent years, the mobile networks have evolved from a circuit switched approach to a complete packet switched one. The LTE-EPS network (Long Term Evolution - Evolved Packet Core) offers high bandwidth, low latency and improved spectrum efficiency. It provides IP connectivity but does not support valuable legacy services such as the SMS (Short Message Service) in Release 8 to 10. 3GPP is currently specifying two architectures for SMS transmission over LTE in Release 11. The objective of this report is to describe and analyze these architectures with a particular focus on the new gateway called IP-SM-GW (IP Short Message Gateway). Two complementary scenarios are proposed by 3GPP , depending on the type of LTE device used. When an SMS-capable LTE device communicates to a GSM device, the gateway realizes transport level interworking. However, if the LTE user is unable to create or read SMSs, the IP-SM-GW performs service level interworking. The implementation of an IP-SM-GW is transparent to the end user, and does not imply any changes in the 2G/3G architecture. This solution is necessary for an operator since it offers his subscribers a higher level of trust and a better acceptance of the implementation of LTE.
issued: 2026-05-11T11:09:11.058131
language: fr
modified: 2026-05-11T11:09:11.058138
contact point: Organization
  fn: CCSD
keyword: 4g-networks
keyword: gsm
keyword: ims
keyword: infoeu-reposemanticsother
keyword: infoinfo-nicomputer-science-csnetworking-and-internet-architecture-csni
keyword: interworking-scenarios
keyword: ip-sm-gw
keyword: lte
keyword: other-publications
keyword: sip
keyword: sms
landing page: https://hal.science/hal-00814264

SMS over LTE: services, architecture and protocols
type: Distribution
format: HTML
issued: 2026-05-11T11:09:11.065929
modified: 2026-05-11T11:09:11.014067
access URL: https://hal.science/hal-00814264

test_moissonnage_selune
type: Agent