Fujitsu Corporation

Fujitsu Semiconductor Limited

R3 Iot Limited

Kevin Power

Rajni Agarwal

Michael John Beems Hart

Masato Okuda

Yanling Lu

Mythri Hunukumbure

Yuefeng Zhou

Dorin Gheorghe Viorel

Luciano Sarperi

Hui Xiao

Mick Wilson

Christopher Williams

Kevin Alexandre Quillien

Allan John Gavin Cannon

Steven William Bremner

Norman Lewis Mackenzie

A gateway () for communicating with end devices () and a remote server (), and method thereof. The gateway () comprises a first server () comprising a first management layer (). The first server () is configured to communicate with a first end device (), communicate with the remote server () comprising a second management layer (), and be selectively operable in either a first state wherein the first management layer () controls the first server (), or a second state wherein the second management layer () controls the first server ().

Gateway for communication, an onboarding device, and methods thereof

A wireless local area network, WLAN, comprising: access points arranged to maintain wireless links with terminals each arranged to initiate a wireless link with an access point, and to associate with an access point during a service session. A central association server is connected to each of the access points, and is arranged to gather information from a plurality of the terminals via the wireless links between terminals and access points, determine, based on the gathered information, with which access point a terminal which has initiated a wireless link should associate during its service session, and notify the terminal, via the access point with which the terminal initiated the wireless link, of the access point so determined.

Relieving congestion in wireless local area networks

A frame format used in a wireless communication system, more particularly an OFDMA TDD wireless communication system, of the kind that includes a base station and a plurality of fixed or mobile subscriber stations, the base station maintaining connections with each of the subscriber stations by performing wireless communication in units of frames having the frame format, and within each frame, allocating resources for data transmission and signalling. Each frame has a plurality of downlink subframes and a plurality of uplink subframes including, in time order, a first downlink subframe, a first uplink subframe, a final downlink subframe and a final uplink subframe. One or more further downlink subframe/uplink subframe pairs may be interposed between the first and final subframes as desired, and the configuration can be changed dynamically.

Frame structure for a wireless communication system

A method of requesting a plurality of different characteristic indicators from a second communication apparatus (MS) in a wireless communication network comprising a first communication apparatus (BS) and a plurality of such second communication apparatuses (MS) which communicate with the first communication apparatus using a shared communication frame, the method comprising; the first communication apparatus (BS) transmitting () a single standing instruction to the second communication apparatus (MS) to interchange between sending the different characteristic indicators in a feedback window allocated to the second communication apparatus in the shared communication frame.

Method and system for communicating in a wireless communication systems

A method of requesting a plurality of different characteristic indicators from a second communications apparatus in a wireless communications network including a first communications apparatus and a plurality of such second communications apparatuses which communicate with the first communications apparatus, the method includes the first communications apparatus transmitting a single standing instruction to the second communications apparatus defining at least two interleaving patterns, each interleaving pattern specifying one or more of the characteristic indicators and defining a pattern according to which the second communications apparatus is to interleave the specified characteristic indicators in a single feedback channel allocated to the second communications apparatus, the single standing instruction further defining a selection signal to be transmitted from the first communications apparatus to the second communications apparatus according to which the second communications apparatus is to select one of the interleaving patterns.

Wireless communication system and network comprising a first communications apparatus and a second communications apparatus which communicates with the first communications apparatus

The invention relates to a method in a cluster of cells in a communications network comprising switching between a first state, in which a first number of radio stations is active and a second state in which a second, different number of radio stations is active, wherein the second state is intended to provide the same geographic coverage as the first state but a different capacity, and in which the transition between states is carried out using transmission parameter adjustment, which take place in a plurality of radio stations and are co-ordinated in time for these radio stations.

Transition mechanism for energy efficient mobile overlay network

A method for cooperative data transfer includes establishing a primary wireless connection with a primary access station. The primary wireless connection uses a primary synchronization channel that is transmitted during a first frame of a super frame. The super frame comprises a plurality of frames. The method also includes detecting a secondary synchronization channel generated by an alternate access station during a subsequent frame of the super frame. The method further includes determining whether the detected secondary synchronization channel has a signal strength greater than a threshold signal strength. The method additionally includes receiving permission to begin a cooperative data transfer operation with both the primary access station and the alternate access station.

System and method for cooperative data transfer

A signalling method for use in a multiple-access communication system, the system comprising a first communication apparatus and a plurality of second communication apparatuses, the second communication apparatuses being operable to communicate with the first communication apparatus using respective parts of a shared communication frame and each using an available service level for such communication, the method comprising: assessing service-level requests from the second communication apparatuses to determine if there is a group of the second communication apparatuses that have corresponding service-level requirements; if it is determined that such a group exists, employing a first control scheme for transmission in the shared communication frame of communication control information for the second communication apparatuses of the group; and for any second communication apparatus not part of the group, employing a further control scheme different from said first control scheme for transmission in the shared communication frame of communication control information for that second communication apparatus, wherein the first and further control schemes are configured such that use of the first control scheme for said group of second communication apparatuses enables communication for more such second communication apparatuses to be supported in said shared communication frame than if such a further control scheme were used for said group of second communication apparatuses.

Communication systems

A signalling mechanism in an OFDMA-based wireless communication system in which the number of bits used to indicate the 2-D resource allocation in each frame are reduced, and optimised for the particular frame configuration. The numbers of bits within the MAP-IEs in at least the DL_MAP and optionally also the UL_MAP of each frame, used to represent the Symbol offset and No. of Symbols, are scaled to the frame duration and the subcarrier allocation scheme used for the zone to which the DL-MAP_IE is associated. Likewise, a variable number of bits is used for the subchannel offset and number of subchannels, which can be optimised based on the selected FFT size and subcarrier allocation scheme. The bit numbers in use can be TLV encoded and transmitted within a downlink channel descriptor following the DL_MAP and UL_MAP. Therefore, in subsequent frames each subscriber station knows the number of bits being used to represent these parameters, and thus the field sizes in the MAP_IEs, until such time as the DCD is updated. In this way, the signalling overhead incurred by the MAP_IEs, which can be very significant for a large number of users and with some frame and FFT sizes, is reduced.

Wireless communication systems and methods and a base station communicating with a plurality of subscriber stations

A method in a wireless communication system that includes a user equipment, an anchor network station and at least one assisting network station, where the user equipment transmits the same data to the network stations and the network stations each transmit an acknowledgement of the data to the user equipment in response. The at least one assisting network station also forwards the data to the anchor network station.

Uplink H-ARQ signalling mechanism in a wireless communication system

A method of coverage hole compensation is provided in a wireless telecommunications network including a plurality of base station transmitters, each transmitter providing a coverage area for communication with user equipment, wherein a coverage hole is present within a coverage area provided by a transmitting transmitter; the method comprising selecting transmitters which are to be adjusted, including a first dominant transmitter within the coverage hole, and adjusting a transmission parameter of the selected transmitters, wherein the amount of adjustment of the selected first dominant transmitter in the coverage hole is greater than the amount of adjustment of any other selected transmitter.

Coverage hole compensation in wireless communication networks

A method of operating a wireless communications system comprising at least a base station, a first relay station, a second relay station and one or more subscriber stations; using at least a first wireless protocol with the first relay station, and using at least a second wireless protocol with the second relay station. Operation of the method comprises using a subframe which comprises: a first-protocol access period; a firstprotocol relay period; a second-protocol access period; and a second-protocol relay period. The subframe further comprises an idle period to avoid communications using the first wireless protocol interfering with communications using the second wireless protocol and the overall frame structure is arranged to position the idle period for the first relay station between the first-protocol access period and the first-protocol relay period, to accommodate switching of the first relay station between transmit and receive modes.

Methods and apparatus for operating a wireless communications system

A wireless communication method used in a system comprising a base station and a plurality of fixed or mobile subscriber stations, the base station maintaining connections with each of the subscriber stations by performing wireless communication in units of frames, and within each frame, allocating resources for data transmissions and signalling in the wireless communication system. The method involves providing, in each frame, a new dedicated shared channel for use by the subscriber stations to report a connection quality to the base station. To save bandwidth in the system, the resources allocated to the shared channel are less than the total resources needed for every subscriber station to report individually within the same frame. The method includes, in the base station, allocating resources to the shared channel, dividing the shared channel into a plurality of reporting opportunities, and transmitting requests for reports to the subscriber stations; and in the subscriber stations, responding to said requests by randomly selecting one of said reporting opportunities and sending a report on the channel quality. Preferably, the responding step is conditional upon the channel quality experienced by each subscriber station meeting a threshold condition set by the base station and included in the requests.

Wireless communication systems

An inter-cell interference mitigation signaling method for controlling the use of a plurality of inter-cell interference mitigation methods during wireless communications between a first wireless communications apparatus and a second wireless communications apparatus, the method comprising

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West Drayton, United Kingdom

Kevin Power