Abstract:
The invention relates to a wireless communication system (100) comprising a plurality of radio devices (102, 104). Each radio device of the plurality of radio devices (102, 104) is configured to: obtain timing information representing timing schedules of one or more other radio devices (102, 104) within its neighborhood; define, based on the obtained timing information, at least one timing schedule group (106, 108) into which the plurality of radio devices (102, 104) are divided and a size of each at least one timing schedule group (106, 108); and synchronize its own timing schedule with the timing schedule of the timing schedule group (106, 108) with the largest size. The invention relates also to a synchronization method (500) for the wireless communication system (100), a radio device (102, 104) for a wireless communication system, and a synchronization method for the radio device (102, 104).
Abstract:
The application relates to a resource scheduling system (100) for a wireless communication network (102). The system comprises a first communication device (104a) and a second communication device (104b). The first and second communication devices (104a, 104b) belong to a group of plurality of communication devices (104, 104a, 104b) of the network. Each communication device (104, 104a, 104b) in the group of plurality of the communication devices is configured to provide a bi-directional radio communication with at least one of the plurality of the communication devices. The first communication device is configured to send a transmission resource configuration to rest (104, 104b) of the plurality of the communication devices. The first communication device is further configured to broadcast separately a transmission resource assignment to the rest of the plurality of the communication devices.
Abstract:
The application relates to an addressing system (100) for a wireless communication network (102). The system comprises a first communication device (104a) and a second communication device (104b). The first and second communication devices (104a, 104b) belong to a group of plurality of communication devices (104, 104a, 104b) of the network. Each communication device (104, 104a, 104b) is configured to provide a bi-directional radio communication with at least one of the plurality of communication devices. Each communication device has (322) a long node identifier (L-ID) for addressing said communication device (104, 104a, 104b) and for being used in at least one security procedure of communication in the network. Each communication device is configured to generate (328) a short node identifier (S-ID) for identifying said communication device in a dedicated communication between it and other communication device (104, 104a, 104b) belonging to the plurality of communication devices. Each communication device is configured to include (330, 338, 342, 344) at least its generated short node identifier as a transmitter address into a control part (214) of a communication packet (208) for informing the transmitter of the communication packet to its receiver, and at least its long node identity into another part (216) of the communication packet for securing a security of theirs communication.
Abstract:
The application relates to a system for connecting a bea- con device (802) and a gateway device (804). The system comprising beacon devices (802) and the gateway device. The beacon device belonging to the beacon devices is adapted to provide a bi-directional connection (800, 801) to the GW device and the GW device is adapted to pro- vide a bi-directional connection (805) to an application system (806). The beacon devices form a multi-hop wire- less mesh network (800), the GW device provides a bi- directional mesh connection to the wireless mesh network, and the wireless mesh network is used for communicating data between the beacon device and the GW device.
Abstract:
The application relates to an association system (100) for a wireless communication network (102). The system comprising at least one association initiator device(104b) and at least one association target device (104c). Each association target device (104c) is configured to transmit beacon messages comprising load data of said association target device (104c) comprising at least data indicative of number of currently associated router devices. After receiving the beacon mes-sage from at least one association target device (104c),each association initiator device (104b) is configured to:decide whether to attempt to associate with the at least one association target device (104c) on a basis of the load data comprised at least partly in the received beacon message from said at least one association target device (104c), and send an association request mes-sage to each of the at least one association target de-vice (104c) with which said association initiator device (104b) decides to attempt to associate. The application relates also to association methods for a wireless communication network (102), an association target device,an association initiator device, a computer program, and a computer readable medium.
Abstract:
The application relates to a configuration system (100) for a wireless communication network (102) that comprises at least one first communication device (104b) and at least one second communication device (104c). The at least one first and second communication devices (104b, 104c) belong to a plurality of communication devices (104, 104a, 104b, 104c, 104d). Each communication device (104, 104a, 104b, 104c, 104d) in the plurality of the communication devices is a radio node device configured to provide a bi-directional radio communication with at least one of the plurality of the communication devices. After receiving(220) a content of a network persistent configuration data (CO) from a communication device (104a) belonging to the plurality of the communication devices and storing(222) the received content of the configuration data, each first communication device (104b) is configured to broad-cast (224) a configuration data description (DE), which comprises a version identifier (VE) of the configuration da-ta, periodically in the network for indicating a capability of said first communication device to send (228) the stored content of the configuration data, which is in accordance with the version identifier, on request.
Abstract:
The invention relates to a wireless communication system (100) comprising a plurality of radio devices (102,202, 204). Each of the plurality of radio devices (102,202, 204) is capable of transmit and receive data packets (220). At least one radio device (102, 202,204) is configured to: ACK packets (240) received from one or more neighbouring radio devices (102,202, 204) in response to transmitted data packets (220); determine lengths of ACK gap (230) periods of the one or more neighbouring radio devices (102, 202,204) based on the observed ACK packets (240); and adjust its ACK listening duration (250) based on the determined lengths of the ACK gap periods (230). The invention relates also to a method for a wireless communication system (100), a radio device (102, 202,204) for a wireless communication system (100), a method for the radio device (102, 202, 204), a computer program (505), and a tangible non-volatile computer-readable medium.