A replay device includes: multiple transceiver units that transmits and receives a communication frame, each transceiver unit including a register in which at least data indicating a set-up content relating to an operation of a respective transceiver unit is written; a register access unit that is connected with each transceiver unit through an interface; and a control unit that transmits a control message to the register access unit. The control message includes access target information for designating one or more access target transceiver units, and access content information indicating an access content to a register of each access target transceiver unit. The register access unit sets the one or more target transceiver units designated by the access target information, and perform an access to the register of each access target transceiver unit according to the access content.

A replay device includes: multiple transceiver units that transmits and receives a communication frame, each transceiver unit including a register in which at least data indicating a set-up content relating to an operation of a respective transceiver unit is written; a register access unit that is connected with each transceiver unit through an interface; and a control unit that transmits a control message to the register access unit. The control message includes access target information for designating one or more access target transceiver units, and access content information indicating an access content to a register of each access target transceiver unit. The register access unit sets the one or more target transceiver units designated by the access target information, and perform an access to the register of each access target transceiver unit according to the access content.

The present disclosure provides a method, apparatus, and system for data transmission, which pertains to the technical field of communication. The method includes: receiving by a terminal a Quality of Service (QOS) class mapping table sent from a network access device, the QOS class mapping table including a corresponding relationship between a Quality of service Class Identifier (QCI) and an Access Category (AC); receiving by the terminal the QCI configured by the network access device for a radio bearer, wherein the radio hearer is configured to transmit first uplink data; querying by the terminal the AC corresponding to the QCI, based on QOS class mapping table; sending by the terminal second uplink data to the network access device using the AC via a Wireless Local Area Network (WLAN) link; wherein the first uplink data and the second uplink data are data transmitted in aggregation transmission.

Determination of one or more timing (phase) and/or frequency corrections to be made to a local time base of a receiver device to synchronize the local time base with the time of GPS or other highly accurate time base. Timing packets from one or more grandmaster devices whose time bases are substantially the same as that of GPS or the like and/or positioning system signals (e.g., GPS signals) directly from a positioning system are received and manipulated to determine the timing and/or frequency corrections. The corrected time base may be used to assist in acquiring such positioning signals to allow for higher accuracy correction and/or for downstream communication operation. The present utilities are advantageous such as when a sufficient number of channels (e.g., four) from the receiver device to positioning system satellites are unavailable to synchronize the local time base to the GPS or other accurate time base.

The invention relates to network nodes comprising: a first computing unit (CPU.sub.a); at least one second computing unit (CPU.sub.b); an internal switch (Sw.sub.i); and an external switch (Sw.sub.e), wherein the internal switch (Sw.sub.i) is connected to the first computing Nunit (CPU.sub.a), the at least second computing unit (CPU.sub.b) and to the external switch (Sw.sub.e) and wherein the external switch (Sw.sub.e) has at least one port for data originating from other network nodes. The invention also relates to a control module and an Ethernet ring.

The invention relates to network nodes comprising: a first computing unit (CPU.sub.a); at least one second computing unit (CPU.sub.b); an internal switch (Sw.sub.i); and an external switch (Sw.sub.e), wherein the internal switch (Sw.sub.i) is connected to the first computing Nunit (CPU.sub.a), the at least second computing unit (CPU.sub.b) and to the external switch (Sw.sub.e) and wherein the external switch (Sw.sub.e) has at least one port for data originating from other network nodes. The invention also relates to a control module and an Ethernet ring.

The invention relates inter alia to a method of operating a communication system (10). Each communication node (11, 12, 13, 14) of the communication system (10) preferably tracks a successful reception of data signals (D) and requests a switch and/or switches from a currently used communication channel (C1) to another communication channel (C2-C6) in case that no successful receptions were made within a given maximum time interval.

The invention relates inter alia to a method of operating a communication system (10). Each communication node (11, 12, 13, 14) of the communication system (10) preferably tracks a successful reception of data signals (D) and requests a switch and/or switches from a currently used communication channel (C1) to another communication channel (C2-C6) in case that no successful receptions were made within a given maximum time interval.

Implementations described herein are directed to satellite transmitters and receivers for applying OFDM-like signaling in broadband satellite transmissions. In such systems, one or more data signals may be shaped and composited into a composite data signal at an OFDM-like transmitter for transmission over a satellite channel. The data signals that are carried over the satellite channel by the composited signal may have their own carrier, and each signal may carry multiple OFDM subcarriers. Further implementations are directed to correcting for distortion in satellite communications systems that utilize OFDM-like signaling. This distortion correction may account for the linear and nonlinear distortion introduced by the high power amplifier of a satellite receiving a composite signal, the linear and nonlinear distortion caused by the interaction of the signals in the composite, the linear and nonlinear distortion caused by the interaction between OFDM subcarriers, and/or the linear and nonlinear distortion caused by inter-carrier interference.

Implementations described herein are directed to satellite transmitters and receivers for applying OFDM-like signaling in broadband satellite transmissions. In such systems, one or more data signals may be shaped and composited into a composite data signal at an OFDM-like transmitter for transmission over a satellite channel. The data signals that are carried over the satellite channel by the composited signal may have their own carrier, and each signal may carry multiple OFDM subcarriers. Further implementations are directed to correcting for distortion in satellite communications systems that utilize OFDM-like signaling. This distortion correction may account for the linear and nonlinear distortion introduced by the high power amplifier of a satellite receiving a composite signal, the linear and nonlinear distortion caused by the interaction of the signals in the composite, the linear and nonlinear distortion caused by the interaction between OFDM subcarriers, and/or the linear and nonlinear distortion caused by inter-carrier interference.