Telefonaktiebolaget Lm Ericsson (publ)

Optis Wireless Technology, LLC

Edgar Ramos

Claes Tidestav

Zhang Zhang

Yi-Pin Eric Wang

Andres Reial

Johan Rune

Qingyu Miao

Jose Luis Pradas

Reza Moosavi

Stefan Parkvall

Bengt Lindoff

Icaro L J Da Silva

Joakim Axmon

Erik Bengt Dahlman

Stefan Wager

Rui Fan

Janne Peisa

Robert Baldemair

Jinhua Liu

Stephen J Grant

Pradeepa Ramachandra

Hai Feng Wang

Zhan Zhang

Patrik Torgny Karlsson

Jonas Kronander

Virgile Garcia

Gunnar Mildh

Fredrik Gunnarsson

Jari Tapio Vikberg

Erik A Eriksson

Pål Frenger

Henrik Sahlin

Dennis Hui

Martin Hessler

Magnus Stattin

Sven Oscar Petersson

Karl Norrman

Qianxi Lu

Johan Torsner

Gabor Fodor

Fredrik Athley

Joachim Sachs

Kumar Balachandran

Ali S Khayrallah

Gen Li

Thorsten Lohmar

Andreas Höglund

Bo Hagerman

Lars Lindbom

Osman Nuri Can Yilmaz

Niclas Wiberg

Jonas Fröberg Olsson

Johan Furuskog

Torgny Palenius

Niklas Johansson

Jianfeng Wang

Lars Sundström

Peter Alriksson

Andreas Bergström

Pontus Wallentin

Patrik Rugeland

Henrik Asplund

Martin Johansson

Karl Werner

Mikael Coldrey

Johan Axnäs

Mårten Ericson

Shehzad Ali Ashraf

Fredrik Lindqvist

Dennis Sundman

Ning He

Mikael Prytz

Håkan Axelsson

Yngve Selén

Andreas Cedergren

Nadia Brahmi

Niklas Jaldén

Jonas Medbo

Ali El Essaili

Elena Myhre

Hugo Tullberg

Jörg Huschke

Emma Wittenmark

Lars Manholm

Ulf Gustavsson

Walter Müller

Anders Furuskär

Håkan Björkegren

Johan Mikael Bergman

Henning Wiemann

Riikka Susitaival

Johan Nilsson

Anders Wallén

Henrik Enbuske

Bo Lincoln

Mats Fredrik Sagfors

Min Wang

Jan Christoffersson

Helka-Liina Määttanen

Anna Larmo

A wireless communication device is configured for use in a wireless communication system. The device in this regard is configured to receive a command that commands the device to perform a link switch from a source link to a target link responsive to fulfillment of a condition. The command may indicate a target link configuration relative to a source link configuration. The device is also configured to store information from which the target link configuration indicated by the command is determinable irrespective of any change to the source link configuration occurring after receipt of the command. In some embodiments, the device is configured to, responsive to fulfillment of the condition, perform a link switch from the source link to the target link using the target link configuration as determined from the stored information.

Link switch in a wireless communication system

Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.

Network architecture, methods, and devices for a wireless communications network

The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, the disclosure presents a method for performing wireless device assisted handover from a source access node to a target access node in a wireless network. The method comprises performing (S) one or more mobility measurements for corresponding candidate radio links and selecting (S), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report, based on the one or more mobility measurements, identifying the initial target link, is transmitted (S) to the source target node using a first radio link reporting mechanism whereupon communication over the initial target link is initiated (S). A second radio link measurement report for the one or more candidate radio links and based on the same one or more mobility measurements, is transmitted (S) on the initial target link using a second radio link measurement report different from the first radio link reporting mechanism.

Methods and arrangements for measurement based mobility

A method for optimizing the processing of logical channels when multiple transport formats are to be served is provided. In certain aspects, instead of filling sequentially each transport format one by one, the protocol packets to be transmitted by the transport block are concurrently constructed. This may be accomplished, for instance, by taking into consideration the requirements of the data (for example, latency and reliability) to be transmitted as well as the characteristics of the available transport format (for example, size, expected channel quality, transmission length, etc.).

Optimization of logical channel processing for multiple transport blocks

Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

The present disclosure relates to methods and arrangements for performing wireless device assisted handover form a source access node to a target access node. Performed in a wireless device, a method comprises performing (S) one or more mobility measurements for corresponding candidate radio links and selecting (S), from the one or more candidate radio links, an initial target link based on the performed one or more mobility measurements. A first radio link measurement report based on the one or more mobility measurements, identifying the initial target link is transmitted (S) to a target node providing the initial target link, using a first radio link reporting mechanism. A second radio link measurement report for the one or more candidate radio links and based on the same one or more mobility measurements, is transmitted (S) to the source access node using a second radio link measurement report different from the first radio link reporting mechanism. Finally, a wireless device connection is initiated (S) over a handover target link indicated in a handover command from the source access node or over the initial target link, wherein the wireless device connection is initiated over the initial target link based on a reception status for the handover command.

The present invention relates to handling data transfer during handover, whereby a terminal device is initially connected to a serving access node and a handover is performed to connect the terminal device to a target access node. The improved handling of data transfer is achieved by upon making a handover decision, performing data rerouting to the target access node while continuing to exchange data between the terminal device and the serving access node, and stopping the data exchange between the terminal device and the serving access node in response to an indicator indicating that the target access node is ready to proceed with the handover.

Data transmission during handover

A wireless communication device and method therein for adapting radio frequency receiving bandwidth are disclosed. The wireless communication device is configured to obtain information on respective bandwidths and center frequencies of a first and a second channels. The wireless communication device is further configured to determine a total receiving bandwidth to use at a time instant based on the respective bandwidths and time instants for reception of the first and second channels and adapt the radio frequency receiving bandwidth in the wireless communication device based on the determined total receiving bandwidth.

Communication device and method for adapting radio frequency receiving bandwidth

A wireless device in a wireless communication system is configured to perform measurements on a set of candidate links for supporting a network node in the system to make a decision as to which of the candidate links is to be a target link for a link switch. The wireless device reports (e.g., at the physical layer) measured candidate links one link subset at a time in order of the wireless device's preference for the target link, until the wireless device receives a target indication signal indicating which of the candidate links in the set is to be the target link. Any given link subset reports one or more candidate links which the wireless device has measured for the decision. Responsive to receiving the target indication signal, the wireless device performs the link switch to the indicated target link.

A wireless communication device () is configured for use in a wireless communication system. The device () in this regard is configured to receive a command () that commands the device () to perform a link switch () from a source link (A) to a target link (B) responsive to fulfillment of a condition. The command () may indicate a target link configuration () relative to a source link configuration. The device () is also configured to store information () from which the target link configuration () indicated by the command () is determinable irrespective of any change to the source link configuration occurring after receipt of the command (). In some embodiments, the device () is configured to, responsive to fulfillment of the condition, perform a link switch () from the source link (A) to the target link (B) using the target link configuration () as determined from the stored information ().

According to some embodiments, a method for use in a network node of transmitting reference signals in a wireless network using a plurality of beams comprises obtaining a node identifier for the network node. The node identifier is unique for neighboring network nodes within a particular coverage area of the wireless network. The method further comprises obtaining a group of reference signal sequences. The group comprises a subset of a pool of possible reference signal sequences for use in the wireless network. Each reference signal sequence is associated with a beam reference identifier. The method further comprises selecting a reference signal sequence from the obtained group: scrambling a reference signal transmission pattern using the obtained node identifier and the selected reference signal sequence with associated beam reference identifier; and transmitting the scrambled reference signal transmission pattern to a user equipment on one of the beams among the plurality of beams.

Minimizing network planning using reference signal grouping

There is provided a method for selectively enabling periodic transmission of reference signals in a wireless communication network. The method comprises obtaining (S) information of user activity in one or more beams, cells or sector, and performing (S) at least one of activating and deactivating, for at least one beam, cell or sector, periodic transmission of reference signals based on the obtained information.

Managing reference signals in a wireless communication network

A wireless communication device in a cellular wireless communication system activates () radio receiver circuitry during repeated time windows. The repeated activation has a nominal repetition time interval, T, and each repeated time window has a window duration, DT. During each DT, detection () is made of a plurality of synchronization signals that are transmitted by a respective cell. Based on the detected synchronization signals, calculation () is made of a respective cell quality value. These calculated quality values are then provided () to a mobility process. Depending () on the calculated quality values and at least a first quality threshold, any of T and DT are adjusted ().

Synchronization signal search

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Auburn Hills, MI, United States of America

Edgar Ramos