Koninklijke Philips Corporation N.v.

Sharp Kabushiki Kaisha Corporation

Signify Holding B.v.

Philips Lighting Holding B.v.

Robert James Davies

Timothy J Moulsley

Milos Tesanovic

Lorenzo Feri

Frederik Jan De Bruijn

Choo Chiap Chiau

Ronald Rietman

Willem Franke Pasveer

Koen Johanna Guillaume Holtman

Stefan Marcus Verbrugh

Stephanus Joseph Johannes Nijssen

Paul Henricus Johannes Maria Van Voorthuisen

Johan Wilhelmus Hermanus Kuppen

Alexander Paulus Philippus Maria Habets

Teresa Zotti

Luca Zappaterra

Timothy James Moulsley

Timothy Moulsley

Choo Chiau

In order to provide a reliable interconnection between a wireless mesh network and an external network, more than one border router device may be deployed. A novel load balancing method, and the related system and devices, are disclosed in this invention. By embedding actual traffic load information in the frequency of sending the border router advertisements, automatic traffic load balancing among multiple border routers is realized in 5 the system, without extra signaling overhead or any change to the beacon packet structure.

Wireless mesh network system

A mobile object configured for movement in an area equipped with VLC illumination sources comprises a light sensor arranged to detect illumination from at least one of the illumination sources within the view of the light sensor; a computer arranged to determine from the detected illumination (i) a position of the mobile object relative to the at least one illumination source and (ii) the identifier of the at least one illumination source; and a transceiver. The transceiver can receive from another mobile object a message comprising the position of the other mobile object relative to a source of illumination, and the identifier of that source of illumination. From this, the computer determines from its position and the message a distance from the other mobile object. A mobile object which transmits such a message is also envisaged.

Indoor positioning system for mobile objects

A method of communicating between a primary station and a plurality of secondary stations is described. According to one aspect, the secondary station monitors a control channel search space for a control message from a primary station intended for the communication device. According to an aspect, the control message is indicative of a resource allocated to the secondary station for communicating with the primary station and the resource corresponds to a component carrier. The secondary station determines a control channel from the control channel search space having the control message intended for the secondary station and determines, based on a presence of the control channel on a specific component carrier, the indication of a resource set from a plurality of resources sets in which the resource allocated to the secondary station is located.

Method for communicating in a mobile network

A transmitting device comprises a transmitter, and a controller for receiving transmission requests from a request source. The controller comprises a queue, and is configured to queue the transmission requests in order from the front of the queue backwards, and to enact the transmission request at the front of the queue by controlling the transmitter to perform the transmission of the corresponding message. The controller is further configured to detect that at least one of these transmission requests is to be treated as a repeating request, and in response, to re-insert the repeating request in the queue in one of the places farther back than the front after transmission of the corresponding message, so as to retransmit the corresponding message at least once.

Transmitter comprising a transmission queue and corresponding source device

The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel.

Method for operating a radio station in a mobile network

The present invention relates to a method or communicating between a primary station and a plurality of secondary stations, comprising

The invention relates to the field of IEEE 802.15.4 based networks, and in particular to methods and devices for transmitting and receiving messages in IEEE 802.15.4 based networks. The existing IEEE 802.15.4 standard is further improved and adapted to better fit the properties of a network of lighting devices. The improvements and adaptations of the existing IEEE 802.15.4 standard allow for more flexible addressing. Bits which are indicative of use of address fields and/or whether one or two frame control fields is/are present in the ordered data portions of the message to be transmitted are defined by the device transmitting the message in the IEEE 802.15.4 based network. Existing features of the existing IEEE 802.15.4 standard protocol are retained.

Protocols for visible light communications

Methods, apparatus, and systems are disclosed herein for projecting lighting effects () carrying light messages onto surfaces. A first of one or more light-emitting diodes (LEDs,) of a lighting fixture () may be selectively energized to produce a first coded light signal conveying a first light message associable with a first location. Light emitted from the first LED may be projected onto a first surface, e.g., as a spatially-limited lighting effect. In some embodiments, a second of the one or more LEDs of the lighting fixture may be selectively energized to produce a second coded light signal conveying a second light message associable with a second location distinct from the first location. Light emitted from the second LED may be projected onto the first surface or a second surface. Alternatively, lighting effects of various shapes and hues may convey information.

Methods and devices for projection of lighting effects carrying information

The invention relates to a method for automatic grouping of light sources within an illumination system. The method is performed starting from a first light source of the illumination system emitting a first light signal and a first sound signal. The method includes steps of using an intensity of the first light signal as received by a second light source and an intensity of the first sound signal as received by the second light source to determine a value of a grouping function (), and assigning the first light source and the second light source to the same group of light sources when the determined value of the grouping function satisfies one or more pre-determined conditions (). In this manner, a determination could be made whether or not the first and second light sources should be assigned to the same group in a manner that yields improved results over the prior art solutions.

Automatic grouping via light and sound

The present invention relates to a method or communicating between a primary station and a plurality of secondary stations, comprising the primary station providing a plurality of resource sets, the primary station configuring a secondary station to search for a control channel on at least one of a plurality of search spaces each corresponding to a resource set, wherein at least part of one of the search spaces is used to transmit a control message to a secondary station, the control message being indicative of a resource allocated to the secondary station for transmitting to the primary station or receiving from the primary station data, and wherein the secondary station deduces from the part of the search space used for transmitting the control message an indication of the resource set from the plurality of resource sets within which the allocated resource is located.

The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station, the primary station changing a parameter of the discontinuous mode based on the control message. a change in physical location, a change in a velocity, a change in an acceleration, a change in a motion, a change in a context, a change in connectivity in the network, a change in connectivity outside the network, a handover to a different cell RAT, a change in power, a change in quality of service (QoS), a time of day and an expiration of a timer.

Method for communicating in a mobile network implementing discontinuous reception

A method for communicating in a mobile communications network including a primary station communicating with at least one secondary station comprising communication means for communicating with a primary station, the method comprising the step (a) of the secondary station signaling at least one preferred operating profile out of a plurality of available operating profiles in response to an event.

Method of managing resources in a secondary station

The present invention relates to a method for operating a secondary station comprising means for communicating with a primary station, the method comprising receiving from the primary station an interference status report, said interference status report comprising an spatial indication being representative of a spatial characteristic of the interference, measuring channel characteristics on reference symbols, and interpreting the measured channel characteristics with help of the interference status report.

The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station; the primary station changing a parameter of the discontinuous mode based on the control message.

A method installing a femtocell device in a radiotelecommunications network, wherein the femtocell device receives from a mobile telecommunication device a set of parameters for connecting the femtocell device to a network access device that provides an access to an Internet Protocol network and connects to a management unit of the radiotelecommunications network, through the Internet Protocol network access, in order to be integrated to the radiotelecommunications network under control of the said first management unit.

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Eindhoven, Netherlands

Robert James Davies