A C-RAN includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a central unit communicatively coupled to the plurality of RUs via a fronthaul interface. The fronthaul interface includes a unit having a switching function and configured to perform deep packet inspection on a received packet in order to determine whether an RU identification is present in the packet. The RU identification, if present in the packet, indicates at least one RU the packet is intended for. When the RU identification is present in the packet, the unit is also configured to communicate, for each of the at least one RU, at least a portion of the packet to the RU based on a comparison of the RU identification with at least one bit pattern for the RU.

A C-RAN includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a central unit communicatively coupled to the plurality of RUs via a fronthaul interface. The fronthaul interface includes at least one ETHERNET switch configured to perform deep packet inspection on a received packet in order to determine whether an RU identification is present in the packet. The RU identification, if present in the packet, indicates at least one RU the packet is intended for. When the RU identification is present in the packet, the at least one ETHERNET switch is also configured to communicate, for each of the at least one RU, at least a portion of the packet to the RU based on a comparison of the RU identification with at least one bit pattern for the RU.

A bidirectional out-of-band management (OOBM) dongle comprises a serial port for receiving console traffic from a console port of a managed switch and an Ethernet port for receiving management port traffic from a management port of the managed switch. In operation, the OOBM dongle multiplexes, via an optional adapter, the console traffic and the management port traffic and generates Ethernet traffic that is then communicated, via an OOBM port on the dongle, to an OOBM switch port of an OOBM switch that acts as a power sourcing device for the OOBM dongle.

An Ethernet transceiver is disclosed. The Ethernet transceiver includes transceiver circuitry having receiver circuitry to receive refresh signals during corresponding refresh cycles from a link partner during a low-power idle mode of operation. Each refresh signal has a refresh period, and where a quiet period is interposed between successive refresh cycles. Signal quality detection circuitry, during the low-power idle mode, determines a measure of signal quality associated with the received refresh signals. Subsequent refresh cycles exhibit at least one of an adjusted refresh period or an adjusted quiet period based on the measure of signal quality.

A bidirectional out-of-band management (OOBM) dongle comprises a serial port for receiving console traffic from a console port of a managed switch and an Ethernet port for receiving management port traffic from a management port of the managed switch. In operation, the OOBM dongle multiplexes, via an optional adapter, the console traffic and the management port traffic and generates Ethernet traffic that is then communicated, via an OOBM port on the dongle, to an OOBM switch port of an OOBM switch that acts as a power sourcing device for the OOBM dongle.

A signal processing apparatus, signal processing method, program, and signal transmission system can transmit 8K or 4K video signals stably through a device of 100 Gbps. A signal processor includes a mapping unit configured to map an 8K or 4K video signal onto first data streams, prescribed by a predetermined format, of plural channels, and a multiplexer configured to generate plural first data blocks by scrambling the first data streams of either odd-numbered or even-numbered channels, first bits by first bits, invert the polarity of data blocks which are part of the first data blocks, generate plural second data blocks by 8B/10B-converting the first data streams of the other channels, second bits by second bits, and generate serial second data streams of plural lanes by multiplexing the first data blocks and the second data blocks. The processor is applicable to a broadcasting camera, for example.

A method of data processing is applied to a communications device including a first sublayer. A physical sublayer is added above a physical coding sublayer (PCS) of a physical layer, and the physical sublayer is connected to media independent interfaces (xMlls) with different Ethernet rates. Data signals from different media access control clients (MAC) are interleaved using the physical sublayer. Then, a tx_cmd command is used to instruct the PCS to correspondingly encode an xMII signal. Finally, an encoded xMII signal is sent through a port. According to this method, an encoding function of the PCS may continue to be used, to decouple interleaving from encoding and perform the interleaving through an xMII interface. In this case, port channelization can be implemented for ports with multiple rates, and transmission of a high-priority service is ensured when there is an excessively large quantity of service flows in a transmission process.

An Ethernet transceiver is disclosed. The Ethernet transceiver includes transceiver circuitry having receiver circuitry to receive refresh signals during corresponding refresh cycles from a link partner during a low-power idle mode of operation. Each refresh signal has a refresh period, and where a quiet period is interposed between successive refresh cycles. Signal quality detection circuitry, during the low-power idle mode, determines a measure of signal quality associated with the received refresh signals. Subsequent refresh cycles exhibit at least one of an adjusted refresh period or an adjusted quiet period based on the measure of signal quality.

A method for data integrity check in a network device of a computer network. The network device includes a communication module and a monitoring module. The monitoring module receives (a) the same data being received by a communication module from an input port of the network device, and (b) the same data the communication module transmits towards output port/s of the network device. The monitoring module (i) derives, after receiving the same R-data as the communication module, a sub-tuple of the R-data, a R-data sub-tuple, wherein the R-data sub-tuple includes m of the n data elements of the n-tuple of R-data, wherein m>0 and m<n, (ii) stores, after deriving the R-data sub-tuple, only the R-data sub-tuple, (iii) derives, after receiving the T-data corresponding to the R-data, a sub-tuple of the T-data, a T-data sub-tuple, and (iv) compares the stored R-data sub-tuple with the T-data sub-tuple, and (v) executes at least one specified/specifiable action, if the comparison determines the R-data sub-tuple and T-data sub-tuple are not identical.

A C-RAN includes a plurality of remote units (RUs), each being configured to exchange RF signals with at least one UE. The C-RAN also includes a central unit communicatively coupled to the plurality of RUs via a fronthaul interface. The central unit is configured to determine sets of data to be sent to a plurality of remote units across the fronthaul interface. The central unit is also configured to determine a mapping of each of the sets of data to at least one of the plurality of remote units. The central unit is also configured to add a respective indicator, based on the mapping, to each set of data, wherein each respective indicator indicates each remote unit that the respective set of data is intended for. The central unit is also configured to broadcast the sets of data, each with the respective indicator, to the plurality of remote units.