(57) ABSTRACT A method and apparatus are described for transmitting Ser vice request
messages in a congested network. In one embodiment, a message including a timer value …

A method and apparatus may be used to cancel a communication session. The apparatus
may transmit a first message to initiate a communication session and then transmit a second …

Today, several generations of radio communication sys tems have evolved in the world. The
several generations of the radio communication systems includes first generation sys tem …

Embodiments of the present disclosure describe methods, apparatuses, storage media, and
systems for single radio voice call continuity handover from next-generation radio access …

Disclosed herein are a method and apparatus for transmitting and receiving discovery
messages in a wireless communi cation system. Specifically, a method for transmitting and …

(57) ABSTRACT A method and mechanism to detect failure of an S102 link between an
Evolved Packet Core, EPC, network based Mobility Management Entity, MME, and an …

(76) Inventor: Kundan TIWARI, Taoyuan County (TW)(57) ABSTRACT (21) Appl. No.:
13/151,956 Methods for handling PS and CS Voice services between a (22) Filed: Jun. 2 …

Apparatus and methods of performing a network cell transition for a voice over long term
evolution (VoLTE) capable mobile device. Initially, the mobile device can detect a call …

Technology for communicating a short message service (SMS) communication in a packet
switched (PS) domain of an evolved packet system (EPS) network. One method com prises …

(UTRAN). One method comprises receiving, at the SGSN, a request message from a user
equipment (UE) indicating that the UE supports PS based SMS and performs a circuit …