Apple Inc.

Robert Zaus

Srinivasan Nimmala

Vijay Venkataraman

Haijing Hu

Krisztian Kiss

Alexandre Saso Stojanovski

Longda Xing

Sree Ram Kodali

Zhanfeng Jia

Meghashree Dattatri Kedalagudde

Sridhar Prakasam

Yingjie Zhao

Puneet Jain

Alexander Sirotkin

Bobby Jose

Jason Ke

Ahmed M Salem

Martin Kugler

Roland Gruber

Sudeep Manithara Vamanan

Ahmed M Soliman

A computer system that establishes a first registration and a second registration in a common wireless communication system is described. During operation, the computer system performs a first registration of the user equipment over a first access, where, after the first registration, the user equipment is connected via the first access with a first access and mobility management function (AMF). Then, the computer system performs a second registration of the user equipment over a second access, where the second access is different from the first access and, after the second registration, the user equipment is connected via the second access with a second AMF. Moreover, when performing the second registration, the computer system: transfers a context of the user equipment from the first AMF to the second AMF; and/or relocates a network interface in a control plane from the first AMF to the second AMF.

Handling of 3GPP and non-3GPP access in the 5G system

Techniques, systems, and devices to support user equipment (UE) in an extended discontinuous reception mode are described. A described technique performed by a radio access network (RAN) includes managing UE that is in an extended discontinuous reception mode and in an inactive state; sending a notification message to an access and mobility management function (AMF), the message comprising buffer support information for a user plane function (UPF) to buffer data; receiving a notification request message from the AMF, the notification request message comprising a request to obtain information regarding reachability of the UE; sending a notification response message to control when the UPF provides downlink data to the RAN for transmission to the UE; performing a connection resume procedure with the UE to cause the UE to switch to a connected state from the inactive state; receiving the downlink data; and transmitting the downlink data to the UE.

Connection resume procedure for UE in EDRX and RRC inactive state for MT data

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Cupertino, CA, United States of America

Robert Zaus