Telefonaktiebolaget Lm Ericsson (publ)

Patrik Jonasson

Stefan Engström

Lisa Boström

Peter Östrup

Anders Johansson

Simon Björklén

Tomas Johansson

The proposed technology concerns network units and, which are typically remotely located, and from the perspective of one of the network units, the other network unit is therefore referred to as a remote network unit. The network unit is configured to provide Radio Resource Control, RRC, and/or Packet Data Convergence Protocol, PDCP, protocol functionality, and comprises an X2 unit for providing an X2 interface between the RRC and/or PDCP protocol functionality of the network unit and lower protocol layer(s) and/or sub-layer(s) of the remote network unit. The network unit is configured to provide Radio Link Control, RLC, and/or Medium Access Control, MAC, protocol functionality, and comprises an X2 unit for providing an X2 interface between the RLC and/or MAC protocol functionality of the network unit and higher protocol layer(s) and/or sub-layer(s) of the remote network unit.

Methods, apparatuses and computer programs for providing an X2 interface between a network unit and a remote network in wireless communication systems

A method in a first network node for handling a handover preparation failure between a first cell and a second cell in a wireless communication network. The first cell is served by the first network node and the second cell is served by a second network node. The second cell is configured for downlink operation only. The first network node transmits () to the second network node a handover request for handover of a user equipment from the first cell to the second cell. The first network node receives () from the second network node an indication. The indication indicates the handover preparation failure, and further indicates that the handover preparation failure is caused by the second cell being configured for downlink operation only. The first network node selects () a cell for handover based on the received indication.

First network node, a second network node and methods relating to handover in a wireless communications network

Growing community of inventors

Nykil, Sweden

Patrik Jonasson