Abstract: A multilink wireless data transmission device comprises a control module and two or more WLAN clients. The control module is configured to control said WLAN clients to enable the data transmission states of those of the WLAN clients, which are not in an idle state, to be the same. The data transmission states comprise a receiving state and a sending state. The control module is configured to control at least one of the two or more WLAN clients, which need to receive data, to switch to the receiving state when a downlink triggering condition is met. The control module is further configured to control at least one of the two or more WLAN clients, which need to send data, to switch to the sending state when an uplink triggering condition is met.

Abstract: A load balancing method for a wireless communication system, which has a backbone network, more than one Access Point connected to the backbone network and more than one client. In the method, the client transmits a Probe Request message to the more than one Access Point; the Access Point monitors its load. If the Access Point is under an overload situation, it transmits a Probe Response message to the client by the minimum transmitting power. If the Access Point is under normal load situation, it transmits a Probe Response message to the client by normal transmitting power. The client preferentially chooses the Access Point under normal load situation to access based on the signal strength of the received Probe Respond message. The method thus provides the client with a priority of the Access Points, wherein the Access Point under an overload situation has a lower priority.

Abstract: A communication method in an automation system, wherein the system comprises an access point and client terminals that receive downlink data sent from the access point and send uplink data to the access point, and the data transmission is divided into a master multiple receiver aggregation phase and more than one slave multiple receiver aggregation phases. During the master multiple receiver aggregation phase, the access point aggregates the data to be sent to the plurality of client terminals into one packet for transmitting in the downlink, and during the slave multiple receiver aggregation phases, the access point aggregates data in which errors have occurred when being transmitted during the master multiple receiver aggregation phase into one packet for transmitting in the downlink. The method can have strict control, through the access point and over the uplink and downlink data transmission, thus enhancing the certainty during automation communication and further reducing the cycle time.

Abstract: An active antenna device, a network device, an access point equipped with the network device and a plurality of distributed active antenna devices form components of a communication system. The active antenna device contains an antenna unit, an amplifier unit and a control unit, wherein the amplification of the amplifier unit is controlled by the control unit according to an instruction from a management unit located in the network device. The devices achieve a low handover frequency whereas rendering the communication less vulnerable to contentions and/or interference than in the conventional systems.

Abstract: A method and apparatus for packet aggregation transmission which are for application in a system comprising a transmitting end and at least two receiving ends, wherein the method comprises, for each receiving end, determining respectively a hold-up condition of subpackets at the transmitting and receiving ends at the current transmitting time, and determining the receiving end corresponding to the worst hold-up condition of the subpackets at the transmitting and receiving ends, and performing a packet aggregation transmission to the determined receiving end at the current transmitting time. The present invention is directed to point-to-multipoint data transmission, can solve the problem of transmission time sequence for a plurality of receiving ends, and improves the instantaneity of a system to the maximum degree possible.

Abstract: Exemplary embodiments of method, gateway, client, software arrangement and computer-accessible medium are provided for a handover of a client from a local network to an access network. For example, information can be received from the client regarding the client's ability to connect directly to the access network, whereas the client is connected to a local network. A request for the handover of the client and an identification information of the client can be transmitted to the access network. Further, the handover of the client can be initiated from the local network to the access network.