Telefonaktiebolaget Lm Ericsson (publ)

Paulson Angelo Vijay Silveris

Johan Hultell

Jose Luis Pradas

Henrik Enbuske

Edgar Ramos

Nianshan Shi

Tao Cui

Matteo Fiorani

Ioanna Pappa

Alessandro Caverni

Lena Melin

Seungtai Kim

In a process for adding a base station as a secondary base station, and for example in 5 response to a UE Context Setup Request or a UE Context Modification Request, a distributed unit of a base station selects a feature set, and informs a central unit of the base station of the selected feature set.

Baseband processing capability handling in split deployment

Methods and devices are described whereby a User Equipment (UE) and a base station are configured to align the uplink (UL) closed-loop transmit diversity (CLTD) status of the UE and the base station during a serving cell change involving a new base station.

Methods and devices for configuring uplink transmission diversity

Methods and devices are described whereby the UE and the Node-B are configured to align the UL CLTD status of the UE and the NodeB during serving cell change involving a new Node-B.

A radio network controllerand a method therein for selecting two or more cellsfor simultaneous transmission of data to a user equipmentby at least one radio network nodecontrolling the two or more cells. The user equipmentis capable of Multi Point High Speed Downlink Packet Access, MP-HSDPA, transmissions. When a second cellthat is an active non High Speed Downlink Shared Channel (HS-DSCH) cell, has a better signal quality than a first cellthat is an active HS-DSCH cell, the radio network controllerselects the second cellto become an active HS-DSCH cell and to be one of the two or more cellsfor simultaneous transmission of data to the user equipment

Radio network controller, a user equipment, a radio network node and methods therein

The disclosure relates to a methodfor radio access bearer establishment performed in a wireless deviceof a communication system. The communication systemcomprises a network nodeconfigured to provide radio access bearers to the wireless device. The methodcomprises detectinga need for a circuit switched service and a packet switched service during a communication session, and indicating, to the network node, a need for a circuit switched radio access bearer towards a circuit switched core networkproviding the circuit switched service and for a packet switched radio access bearer towards a packet switched core networkproviding the packet switched service.

Methods and devices for radio access bearer establishment

A new set of random-access preamble signatures are introduced to differentiate new-release UEs from UEs compliant only with earlier releases. Additional new features of a random-access procedure are also disclosed, including an ability to deploy multiple transmission-time-intervals TTIs) in a given area. An example mobile terminal, according to some embodiments of the present invention, selects a TTI from two or more possible TTIs. The mobile terminal then selects a preamble signature from a group of one or more preamble signatures associated with enhanced-uplink resources and associated with the selected TTI, and transmits a random-access channel (RACH) preamble, using the selected preamble signature. In some embodiments, the mobile terminal selects between a 2-millisecond TTI and a 10-millisecond TTI.

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When a serving Node B has deactivated Continuous Packet Connectivity and the UE then is reconfigured with a RRC reconfiguration message, it can happen that the UE acts as though CPC is activated whereas the serving Node B, on the other hand, acts as though CPC functionality is still deactivated. In several embodiments of techniques for addressing this problem, previously known signaling messages and/or user plane frame headers are modified to include new indicators/parameters, which are used to signal that a given UE should be expected to have non-uniform behavior with respect to remembering CPC activation status after acting on a RRC Reconfiguration message, because it is a Release 7 or Release 8 mobile station. These new indicators/parameters may also be used by a Node B, in some embodiments, to acknowledge the receipt of an indication from an RNC that non-uniform behavior should be anticipated for a given UE.

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Spånga, Sweden

Paulson Angelo Vijay Silveris