Anritsu Supports Verification of New Technology for 5G Low Latency and High Reliability
Anritsu Corporation has provided an industry-first evaluation environment for verifying test items of 3GPP RAN5 Release 18 related to 'Lower Layer Triggered Mobility (LTM),' a technology supporting low-latency, high-reliability communication for 5G-Advanced.
📋 Article Processing Timeline
- 📰 Published: June 3, 2026 at 17:44
- 🔍 Collected: June 3, 2026 at 08:50
- 🤖 AI Analyzed: June 7, 2026 at 02:02 (89h 11m after Collected)
Anritsu Corporation (President: Koichi Hamada) has provided an evaluation environment that enables, for the first time in the industry*¹, the verification of test items for 3GPP RAN5 Release 18 related to 'Lower Layer Triggered Mobility (LTM),' a technology that supports low-latency, high-reliability communication for 5G-Advanced. This verification was conducted using the 5G NR Mobile Device Test Platform ME7834NR.
LTM is a technology that reduces communication interruption time during handover, when a moving mobile terminal (UE: User Equipment) switches base stations (cells) while maintaining communication. It is expected to be used in next-generation 5G services requiring low latency and high reliability, such as extended reality (XR) and industrial applications. This initiative enables mobile operators and device vendors to efficiently implement and verify LTM-related functions.
*¹: Based on Anritsu research regarding the submission of NR LTM test items to 3GPP RAN5, April 2026.
Background of Development
Handover in current 5G networks is executed from the base station using Layer 3 Radio Resource Control (RRC) messages, resulting in communication interruptions of approximately 50 to 90 milliseconds even in optimized environments. This delay poses a challenge for communication services that emphasize real-time performance, such as remote control of industrial equipment and XR.
To address this issue, LTM technology was standardized in 3GPP Release 18. LTM is a mobility technology that controls handover using Layer 2 signaling based on the UE's Layer 1 measurements. By utilizing lower-layer information, the UE can synchronize with neighboring cells in advance.
Through this initiative, Anritsu supports the verification of LTM conformance and interoperability.
Daizaburo Yokoo, Director of the Mobile Solutions Division at Anritsu Corporation, stated: 'Supporting LTM test items compliant with 3GPP Release 18 enables faster and more reliable handover performance, which is extremely important for realizing next-generation 5G services that demand real-time responsiveness and high immersion. By enabling accurate verification of LTM functions, Anritsu helps mobile operators and device vendors reduce handover interruptions and signaling overhead, contributing to a more seamless user experience even in high-speed mobility environments. We are proud that this achievement allows the industry to quickly and reliably implement and verify advanced 5G mobility features like LTM in 3GPP Release 18. Furthermore, this result supports the evolution of 5G NR Standalone networks for applications requiring ultra-low latency and high reliability.'
Product Overview
The ME7834NR is registered as the 5G NR test platform TP251 with the mobile terminal certification bodies GCF (Global Certification Forum) and PTCRB (PCS Type Certification Review Board), primarily in North America. This test platform supports 3GPP-compliant Protocol Conformance Tests (PCT) and Carrier Acceptance Tests (CAT) for mobile devices incorporating multiple radio access technologies. It is applicable to both 5G NR Standalone and Non-Standalone modes, as well as LTE, LTE-Advanced, LTE-A Pro, W-CDMA, NTN, and the LTM targeted in this initiative. Additionally, when combined with Anritsu's OTA RF Chamber MA8171A and RF converter, it enables 5G NR testing in the sub-6 GHz and millimeter-wave bands.
LTM is a technology that reduces communication interruption time during handover, when a moving mobile terminal (UE: User Equipment) switches base stations (cells) while maintaining communication. It is expected to be used in next-generation 5G services requiring low latency and high reliability, such as extended reality (XR) and industrial applications. This initiative enables mobile operators and device vendors to efficiently implement and verify LTM-related functions.
*¹: Based on Anritsu research regarding the submission of NR LTM test items to 3GPP RAN5, April 2026.
Background of Development
Handover in current 5G networks is executed from the base station using Layer 3 Radio Resource Control (RRC) messages, resulting in communication interruptions of approximately 50 to 90 milliseconds even in optimized environments. This delay poses a challenge for communication services that emphasize real-time performance, such as remote control of industrial equipment and XR.
To address this issue, LTM technology was standardized in 3GPP Release 18. LTM is a mobility technology that controls handover using Layer 2 signaling based on the UE's Layer 1 measurements. By utilizing lower-layer information, the UE can synchronize with neighboring cells in advance.
Through this initiative, Anritsu supports the verification of LTM conformance and interoperability.
Daizaburo Yokoo, Director of the Mobile Solutions Division at Anritsu Corporation, stated: 'Supporting LTM test items compliant with 3GPP Release 18 enables faster and more reliable handover performance, which is extremely important for realizing next-generation 5G services that demand real-time responsiveness and high immersion. By enabling accurate verification of LTM functions, Anritsu helps mobile operators and device vendors reduce handover interruptions and signaling overhead, contributing to a more seamless user experience even in high-speed mobility environments. We are proud that this achievement allows the industry to quickly and reliably implement and verify advanced 5G mobility features like LTM in 3GPP Release 18. Furthermore, this result supports the evolution of 5G NR Standalone networks for applications requiring ultra-low latency and high reliability.'
Product Overview
The ME7834NR is registered as the 5G NR test platform TP251 with the mobile terminal certification bodies GCF (Global Certification Forum) and PTCRB (PCS Type Certification Review Board), primarily in North America. This test platform supports 3GPP-compliant Protocol Conformance Tests (PCT) and Carrier Acceptance Tests (CAT) for mobile devices incorporating multiple radio access technologies. It is applicable to both 5G NR Standalone and Non-Standalone modes, as well as LTE, LTE-Advanced, LTE-A Pro, W-CDMA, NTN, and the LTM targeted in this initiative. Additionally, when combined with Anritsu's OTA RF Chamber MA8171A and RF converter, it enables 5G NR testing in the sub-6 GHz and millimeter-wave bands.
FAQ
What is LTM technology?
LTM (Lower Layer Triggered Mobility) is a technology standardized in 3GPP Release 18 that controls handover using Layer 1 measurements and Layer 2 signaling to reduce communication interruption time.
What verification environment did Anritsu provide?
Anritsu provided the industry's first evaluation environment enabling verification of 3GPP RAN5 Release 18 test items for LTM, using the 5G NR Mobile Device Test Platform ME7834NR.
What applications are expected for this technology?
It is expected to be used in next-generation 5G services requiring low latency and high reliability, such as extended reality (XR) and industrial applications.