Nokia Solutions and Networks Oy

Ciena Corporation

Hans Thomas Hoehne

Karri Markus Ranta-Aho

Subramanya Chandrashekar

Alexander Sayenko

Jeroen Wigard

Amaanat Ali

Jani Matti Johannes Moilanen

Devaki Chandramouli

Antti Anton Toskala

Mika Forssell

Cinzia Sartori

Petri Antero Jolma

Frank Frederiksen

Woonhee Hwang

Krzysztof Kordybach

Gyorgy Tamas Wolfner

Jari Pekka Mustajarvi

Karol Drazynski

Isman Bazar

Dario Serafino Tonesi

Krystian Pawlak

Marcin Rybakowski

Patrick Marsch

Colin Willcock

The application relates to the removal of one of the links in multi-flow HSPA but the proposed method is also applicable to normal HSDPA operation during handover. In particular the application aims at minimizing the negative impact of a removed radio link, i.e. drop of packets and/or delays. According to the proposed method, in which the radio link to be removed is via a first Node B NB(RL Removal Req), the NBends the pending data transmission and informs the controlling RNC about the data which was not transmitted, in particular in the form of the lowest sequence number in its buffer. Subsequently, the RNC decides, based on this sequence number, which data packets need to be retransmitted on a second radio link via a second node B NB, and instructs NBaccordingly (Data Forwarding).

Inter-node B handover in HSDPA or multi-flow HSPA including packet retransmission

There are provided measures for improvements in small cell mobility with dual/multi connectivity. Such measures exemplarily comprise terminating at least one control plane signaling connection from said terminal for said at least first network access entity and second network access entity, maintaining a terminal related access stratum context commonly for radio accesses of said terminal to said at least first network access entity and second network access entity, and initiating switching of said radio access of said terminal from said first network access entity to said second network access entity for user plane data transfer with said control plane signaling connection for said second network access entity being applied unchanged, thereby providing, in a control plane for a terminal, connection management for at least a first network access entity and a second network access entity, wherein said at least first network access entity and second network access entity providing radio access for user plane data transfer for said terminal, wherein said terminal being capable of having radio access to said at least first network access entity and second network access entity for user plane data transfer.

Small cell mobility with dual/multi connectivity

There are provided measures for improvements in dual connectivity for different access networks. Such measures exemplarily comprise providing control in a control plane for a terminal (UE) for access to a first access network (5G), wherein a coverage of the first access network (5G) at least partly overlaps a coverage of a second access network (4G), the terminal is capable of having access to the first access network (5G) and to the second access network (4G) in parallel, and access for the terminal to a respective access network (4G, 5G) is routed in a user plane via a respective distinct access network entity (eNB, SGAP) and to a respective (compatible) gateway (S-GW, uGW).

Dual connectivity for different access networks

The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding radio access network (RAN) controlled access of user equipment (UE) to wireless communication networks. The method includes receiving, at a base station or controller of a cellular communication network, a request to offload traffic to a wireless communication network from an access point of the wireless communication network regarding user equipment served by the base station or controller, determining, at the base station or controller, whether to permit the user equipment to offload traffic to the wireless communication network, and transmitting a message indicating whether it is permitted to offload traffic to the access point of the wireless communication network.

Radio access network controlled access of user equipment to wireless communication

A method and apparatus may be configured to determine a network identity that is valid for the first network and a second network. The method may also include assigning the network identity to a user equipment. The method may also providing the network identity to one of the second network and a user equipment. The first network and the second network may be based on different technologies.

User equipment identity valid for heterogeneous networks

A first network node of a first frequency layer, acquires () information on services that are offered by a second network node at a second, different frequency layer. The second network node is within the coverage area of the first network node. The first network node broadcasts () a service advertisement message to at least one terminal device (UE) for advertising the services offered by the second network node at the second frequency layer.

Service based cell re-selection

The present invention addresses methods, apparatuses and computer program products for improved compressed mode operation for enhanced dedicated channel DCH in circuit switched CS voice services/transmissions. A compressed mode of a user equipment is configured during performing a circuit switched voice service over a dedicated channel according to Wideband Code-Division Multiple Access operation upon demand for network specific measurement, whereby measurement gaps are created in the data transmission. In uplink, transmission of a voice frame to be compressed is performed using a 10 ms transmission, whereas in downlink, transmission of a voice frame to be compressed is stopped after a fixed number of slots have been transmitted, wherein the fixed number of slots is set such as to ensure a measurement gap with at least 14 slots.

Compressed mode for UMTS enhanced dedicated channel for circuit switched voice services

It is provided a method, including identifying a weak cell serving a downlink of a first user device; detecting a strong cell different from the weak cell, wherein an uplink of the first user device has a lower uplink path loss towards the strong cell than towards the weak cell; preventing the weak cell from providing a first grant for the uplink, if the strong cell is detected.

UL serving link's role change in heterogeneous network

A technique, including estimating at a communication device a quality of service available to said communication device via a radio access network; making a comparison of the estimated quality of service against a quality of service currently achieved via an access point operating outside of the radio access network; and deciding whether or not to transfer from said access point to said radio access network at least partly with reference to the result of said comparison.

Transfer from access points outside of a radio access network

A method includes causing first reference information associated with a first cell or carrier and second reference information associated with a second cell or carrier to be sent to a first destination in a first time interval and causing at least third reference information associated with a third cell or carrier to be sent to a second destination in a different time interval.

Method and apparatus for reporting reference information with respect to multiple carriers or multiple cells

There is provided a mechanism for conducting data transmission from a network management entity of communication network control element to a terminal or UE with improved robustness. After a multiflow connection for data units via at least one network transceiver device and via at least two different paths is set up towards a terminal, selection criteria are applied so as to decide which data units are sent on which transmission path. Specifically, dependent on the applied selection criteria, data units of specific data are selected to be subjected either to bicasting each selected data unit using the at least two paths, or to dynamic flow switching so as to transmit each selected data unit using one of the at least two paths and wherein each selected data unit can be independently chosen to be transmitted over either of the at least two paths.

Data transmission mechanism with improved robustness using multiflow connection

A method including receiving a packet and determining whether a bicast indication associated with the packet indicates that the packet has been transmitted to two or more access points; and dropping the packet in dependence on at least one criterion.

Selective bicasting

For each base station of K base stations of a cellular communications network a maximum number of wanted data streams per carrier is decided that is to be scheduled to a terminal accessing the cellular communications network. The terminal has Nreceive antennas and K is an integer equal to or greater than two. Information regarding the decision is signaled to at least one of the K base stations.

Growing community of inventors

Helsinki, Finland

Hans Thomas Hoehne