Alcatel Lucent

Alcatel

Alcaltel Lucent

Heidrun Grob-Lipski

Stephen Kaminski

Bernd Haberland

Hajo-Erich Bakker

Fariborz Derakhshan

Sudeep K Palat

Thorsten Wild

Hajo Bakker

Christian Gerlach

Uwe Doetsch

Dietrich Zeller

Osman Aydin

Michael Schmidt

Rolf Sigle

Danish Aziz

Klaus Keil

Markus Gruber

Horst Roessler

Peter Schefczik

Vikas Dhingra

Horst Rössler

Thomas Werthmann

Horst RÖßLER

Stephen Kaminiski

Diedrich Zeller

Palat Sudeep Kumar

Embodiments relate to a concept for a communication network, the communication network comprising a plurality of network entities. It is provided, from an event subscribing network entity () to an event publishing network entity () of the communication network, an event subscription message () comprising information identifying the event subscribing network entity () and comprising configuration rules for configuring a configurable event of interest at the event publishing network entity (), wherein the configurable event of interest () shall be reported from the event publishing network entity () to the event subscribing network entity (). Further it is provided the configurable event of interest () from the event publishing network entity () to the event subscribing network entity ().

Network entity of a communication network

It is proposed a method for operating a radio communication network or a network element thereof, comprising the steps of: determining (2) a bearer to be processed in the radio communication network; selecting (4) a baseband unit, BBU, out of a plurality of BBUs, which satisfies at least one property of the bearer; and placing (8) the bearer on the selected BBU for processing.

Method for operating a radio communication network or a network element thereof using baseband unit selection

The invention refers to a method () for operating a wireless communication network () or a network element () thereof, the network () comprising a plurality of baseband processing devices (). In order to allow for performing baseband processing tasks by multiple cooperating baseband processing devices () such that the real time constraints are met, it is proposed that the method () comprise determining () a delay metric (RTT_BBU) that depends on a network delay between the network element () and at least one baseband processing device () of the plurality of baseband processing devices (), wherein the delay metric (RTT_BBU) is determined before an event (e) occurs that triggers allocation or reallocation of processing resources of the at least one baseband processing device (), and selecting () the at least one baseband processing device of the plurality of baseband processing devices for remote processing depending on the delay metric (RTT_BBU).

Method for operating a network element of a wireless communication network and network element

Embodiments relate to a baseband signal processing cluster of a wireless communication network, the baseband signal processing cluster comprising baseband signal processing units, wherein at least one of the baseband signal processing units is coupled to at least one remote radio head of the wireless communication network and comprises a unit-specific processing resource management entity operable to manage a processing resource allocation within its associated baseband signal processing unit, an intra-cluster processing resource management entity coupled to at least one of the unit-specific processing resource management entities and operable to manage a processing resource allocation among the baseband signal processing units, and an inter-cluster processing resource management entity coupled to the intra-cluster processing resource management entity and operable to exchange information with at least one remote inter-cluster processing resource management entity of a remote baseband signal processing cluster of the wireless communication network to effect a remote processing resource allocation.

Baseband signal processing cluster

The present disclosure relates to a baseband processing assembly () for processing signals of at least one remote radio head (), the at least one remote radio head () serving a radio cell () of a cellular communication system, the baseband processing assembly () comprising a set of user packet schedulers (A-M) and a cell packet scheduler (), wherein the cell packet scheduler () is assigned to the radio cell (), wherein the set of user packet schedulers (A-M) are assigned to a group of users (A-N) associated to the radio cell (), wherein the cell packet scheduler () and a first user packet scheduler (A-M) of the set of user packet schedulers (A-M) are operable to mutually exchange data for providing resource assignment information and establishing a channel () with a first user (A-N) of the group of users using the resource assignment information.

Scheduling virtualization for mobile cloud for low latency backhaul

A method for handover in a wireless communications network includes the step of communicating information between a target network node and a source network node to enable the source network node to identify and to distinguish types of failures prior to, during or after handover. The information may relate to: 'Handover command not received' due to RLF prior to handover or Handover command failure experienced in the source cell; or 'Handover failure' where &#x201c;Handover command received&#x201d; is followed by Access failure in the target cell. The method is applicable, for example, to networks in accordance with LTE.

Handover method and apparatus in a wireless communications network

In a communication network including a plurality of network domains in which switches and controllers are separated, in controllers providing the information to which neighbor switches are to forward data packets, inter-domain communication is introduced. For example, a local controller alerts another local controller enabling this other local controller to perform process steps in preparation of arrival of a data packet prior to that data packet arriving at its network domain.

Method of promoting a quick data flow of data packets in a communication network, communication network and data processing unit

The invention relates to a telecommunication method in a base station of a mobile communication system, the mobile communication system comprising a plurality of base stations, a communication link being established between the base station and a user equipment, the method comprising the following steps performed by the base station: selecting one of the plurality of base stations as a target base station for a handover of the user equipment; transmitting a handover request to the target base station; receiving a handover request acknowledgement from the target base station, the handover request acknowledgment being indicative of at least one physical resource of the target base station; and transmitting a handover command to the user equipment via the communication link using the at least one physical resource. The handover command being descriptive of information required for accessing the target base station.

Telecommunication method and apparatus thereof

The communication network includes a plurality of nodes interconnected by a plurality of links. The allocation unit assigns one or more network flows to the communication pipe. The one or more network flows have the same source node and the same destination node. The allocation unit determines a required capacity of the communication pipe based on the amount of network traffic associated to the one or more network flows and based on one or more minimal quality of service requirements associated with the one or more network flows. The allocation unit allocates one or more links of the plurality of links to the communication pipe for routing the one or more network flows from the source node to the destination node.

Method and allocation unit for allocating a communication pipe in a communication network

A method of detecting a cell spot of a first base station in a cellular communication network using a mobile device being moved through the cell spot is provided. The method includes performing a first handover of the mobile device from a second base station to the first base station. A first value indicative of a distance between the mobile device and the first base station is determined. A second handover of the mobile device from the first base station is performed. A second value based on the time between the first and the second handover is determined. Information indicative of the cell spot is stored after determining the first value is above the first threshold and the second value is below the second threshold. A subsequent handover request for performing a handover from the second base station to the first base station is rejected after the information is stored.

Detecting cell spots

A method of data forwarding during handover in a mobile communication system is provided. The mobile communication system comprising a plurality of base stations and a base station, the base station being coupled to a gateway, a telecommunication link being established between a user equipment and the base station. The method comprising: selecting a set of base station from the plurality of base stations as candidate base stations for a handover of the user equipment by the base station; selecting a first target base station for handover from the set of base stations by the base station; obtaining downlink data from a gateway and up-link data from a user equipment by the base station; forwarding the uplink and downlink data from the base station to the first target base station.

Data forwarding method and apparatus thereof

The invention relates to a handover method in a base station of a mobile communication system, the mobile communication system further comprising a plurality of base stations. A telecommunication link being established between a user equipment and the base station, the method comprises: receiving a first measurement report from the user equipment; selecting a first candidate base station using the evaluation of the signal quality from the first measurement report; initiating a first handover preparation by transmitting a first request to the first candidate base station; determining if the first handover preparation has failed; selecting a set of candidate base stations including at least some of the candidate base stations identified in the first measurement report; initiating a second handover preparation by transmitting a second handover request to at least one of the set of candidate base stations, if the first handover preparation has failed; selecting a target base station from the set of candidate base stations, if the second handover preparation has not failed; initiating the handover of the user equipment from the base station to the target base station.

Handover method and apparatus thereof

A method of signaling to a mobile terminal the radio resources that will be used in a wireless communication between the mobile terminal and a base station is described. The base station provides a plurality of radio resources. The method comprises the steps:

Method and apparatus signaling resource allocation

In a wireless network, for example, an LTE network, the context information relating to a mobile terminal UE is transmitted to a plurality of network nodes eNBandfrom a source network node, eNB. One of the eNBis a handover target node and also reserves resources for the UE in anticipation of receiving it after handover. The other eNBsanddo not reserve resources. In the event of radio link failure, the UE may attach to one of the designated eNBsandthat have not reserved resources, but that do recognize the UE because they have received its context. The method reduces the likelihood of the UE needing to go via the time consuming IDLE state while only reserving resources at a handover target eNB.

Method and apparatus for radio link failure recovery in a wireless communications network

A method of performing resource allocation in OFDM transmission is disclosed. The method includes performing a partitioning of the OFDM spectrum into a number of predefined regions (Rij, R'ij) of sub-carriers (SCi) for a number of OFDM transmission cells, assigning at least one respective transmission-related characteristic to the regions of sub-carriers, and allocating the resources for communication with at least one user equipment in at least one region of sub-carriers based on the partitioning and dependent on the characteristic assigned to the regions of sub-carriers. This allows fast resource allocation with low signaling effort, as well as fast adjustment to changing system settings or changing systems conditions, while providing a possible alternative to costly handover procedures.

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Starzach, Germany

Heidrun Grob-Lipski