Intel Corporation

Apple Inc.

Siemens Aktiengesellschaft

Sebastian Obermanns

Holger Landenberger

Michael Farber

Anja Klein

Meik Kottkamp

Thomas Ulrich

Stefan Oestreich

Franz Goldhofer

Jean-Michel Traynard

Armin Sitte

Jorn Krause

Michael Benz

Dirk Nickisch

Ashish Singh

Youn Hyoung Heo

Richard Charles Burbidge

Alexandre Saso Stojanovski

Puneet K Jain

Sudeep K Palat

Michael Faerber

Sudeep Manithara Vamanan

Naveen Palle

Volker Sommer

Michael Zitzmann

Reinhard Koehn

Pradeep Pangi

Joern Krause

Anshul Kumar Gupta

Sushant Kumar

Mark Jeffery

Avinash Venugopal

Methods, apparatuses, and systems are disclosed for reducing latency during IRAT re-selection in the presence of race conditions. When a UE initiates an IRAT re-selection procedure, and concurrently initiates a call setup procedure, a race condition may result, in which the UE's NAS layer prioritizes the call setup procedure, while the RRC layer prioritizes the IRAT re-selection procedure. This may result in failure of the call setup procedure, which may lead to a user needing to re-initiate the call, resulting in poor user experience and significant latency. To prevent this, the UE may cache a message and/or other information relevant to the call setup procedure, until the IRAT re-selection procedure is complete. The UE may then proceed to complete the call setup procedure. The message may be cached, e.g., at the NAS layer or the RRC layer of the cellular modem, or by an application processor.

UE-specific methods for NR/LTE/3G/2G call performance improvement during IRAT re-selection procedure

An apparatus of a user equipment (UE) comprises one or more baseband processors to encode a unique UE identifier to be transmitted to an Access and Mobility Function (AMF) of a Fifth Generation (5G) network, wherein the unique identifier identifies UE capabilities to be stored in a UE capabilities database. An apparatus of Access and Mobility Function (AMF) of a Fifth Generation (5G) network comprises one or more processors to receive a user equipment (UE) Capabilities update from a remote server to update a UE capability database that stores UE capability information corresponding to one or more UEs identified with a unique identifier, and to process the UE Capabilities update via one or more Application Programming Interfaces (APIs).

UE capabilities provisioning and retrieval in cellular networks

A mobile radio communication device is described configured to operate in a first communication state and in a second communication state. The mobile radio communication device includes: a transmitter configured to transmit data to a mobile radio communication network when the mobile radio communication device is in a first communication state in which the mobile radio communication device is in a connection with a cell of the mobile radio communication network; a memory configured to store information based on the transmitted data; a cell determination circuit configured to determine a cell of a mobile radio communication network as a connection candidate based on the stored information; and a connection request circuit configured to request connection with the determined cell when the mobile radio communication device is in a second communication state in which the mobile radio communication device seeks a connection with a cell of a mobile radio communication network.

Mobile radio communication devices, mobile radio communication networks, and methods for controlling the same

According to the invention, transmissions of the second radio station are received in the first radio station in which the operating instruction for transmission power of the second radio station is determined. The operating instruction is transmitted during a following transmission of the first radio station to the second radio station, whereupon the latter takes into account the operating instruction for power regulation during one of its following transmissions. Contrary to prior art, no time invariable or fixed step size is used. An operating instruction is used instead which is related to a variable step size in transmission power regulation. The variable step size is subscriber-dependent and time-dependent regulated by the radio stations.

Method and radio communication system for regulating power between a base station and a subscriber station

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Schaftlach, Germany

Franz Goldhofer