Abstract: A node device (601) of a wireless sensor network comprises a receiver (651) for receiving transmissions from other nodes. A controller (641) selectively switches on said receiver (651) according to a timetable. The node device (601) maintains synchronization with and receives beacon transmissions from another node in said wireless sensor network. If a failure is observed in previously maintained synchronization, the controller (641) reads from memory previously received information about neighboring nodes with which said node device (601) did not yet maintain synchronization. The controller (641) utilizes such stored information to selectively switch on the receiver (651) to attempt receiving a beacon transmission from such a neighboring node.

Abstract: The invention relates generally to a method and arrangement for real-time betting with an off-line terminal, and especially to the technological field of keeping reliable time in the off-line terminal when handling, within a communications system comprising a distributed domain and a central domain, electronic records that contain predictions of the outcome of a certain incident. Within the distributed domain a multitude of electronic records that contain predictions of the outcome of the incident are generated and furnished with a cryptographically protected proof of a certain moment of the distributed domain's local time associated with the generation of the electronic record.

Abstract: A wireless sensor network, a node device thereof and a method for arranging communications therein are presented. A first frequency is used in wireless communication of information between a headnode and subnodes of a first cluster (103) using a time slotted channel access scheme. A headnode of a second cluster (113) known the first frequency and selects a second, different frequency for use in wireless communication of information within said second cluster (113) using a time slotted channel access scheme. The headnode of the first cluster (103) is informed about the second frequency selected for the second cluster (113). Information from the headnode of said first cluster (103) to the headnode of said second cluster (113) is communicated on said second frequency, using the same time slotted channel access scheme as other nodes in said second cluster (113).

Abstract: A configurable protocol engine (CPE) capable of constructing (110) a desired protocol structure (112) according to the received configuration information. In addition, the CPE schedules the processing of received service primitives according to the priority levels thereof. The configuration information may include service requirements (102), indications of hardware and software resources (106, 108), and the required QoS (Quality of Service, 104) level. The CPE may be implemented as software, hardware, or as a combination of both.

Abstract: A node device (601) of a wireless sensor network comprises a receiver (651) for receiving transmissions from other nodes. A controller (641) selectively switches on said receiver (651) according to a timetable. The node device (601) maintains synchronization with and receives beacon transmissions from another node in said wireless sensor network. If a failure is observed in previously maintained synchronization, the controller (641) reads from memory previously received information about neighboring nodes with which said node device (601) did not yet maintain synchronization. The controller (641) utilizes such stored information to selectively switch on the receiver (651) to attempt receiving a beacon transmission from such a neighboring node.

Abstract: The invention relates generally to a method and arrangement for real-time betting with an off-line terminal, and especially to the technological field of keeping reliable time in the off-line terminal when handling, within a communications system comprising a distributed domain and a central domain, electronic records that contain predictions of the outcome of a certain incident. Within the distributed domain a multitude of electronic records that contain predictions of the outcome of the incident are generated and furnished with a cryptographically protected proof of a certain moment of the distributed domain's local time associated with the generation of the electronic record.