Abstract: The application provides a wireless communication method and a wireless communication device. A part of payload is pre-fetched from a host to a data buffer under a store-and-forward mode before transmission begins. When data transmission begins, the part of the payload pre-fetched in the data buffer is transmitted to an antenna. A remaining part of the payload is fetched to the data buffer under a cut-through mode for payload transmission, wherein the remaining part of the payload is sent from the data buffer to the antenna for radiation.

Abstract: A packet transmission method is provided. The packet transmission method may be applied to an apparatus. The packet transmission method may include the following steps. A path engine circuit of the apparatus may receive a packet from a modem circuit of the apparatus or from a Wi-Fi chip of the apparatus. Then, the path engine circuit may transmit the packet from the modem circuit to the Wi-Fi chip, or transmit the packet from the Wi-Fi chip to the modem circuit or a central processing unit (CPU) of the apparatus.

Abstract: A cable modem locks one of downstream channels and receives a plurality of frequency plan descriptors from a cable modem terminal system (CMTS) over the locked downstream channel. Each frequency plan descriptor includes a fragment quantity field, a fragment sequence number field, and a frequency information field. The cable modem determines if the plurality of frequency plan descriptors transmitted by the CMTS are all received according to the fragment quantity field and the fragment sequence number field of one currently received frequency plan descriptor. The cable modem obtains frequency plan of the cable modem configured by the CMTS according to the frequency information fields if the plurality of frequency plan descriptors are all received, and then locks other downstream channels according to the obtained frequency plan.

Abstract: A wideband cable modem includes a plurality of tuners and a plurality of central frequencies each corresponding to one of a plurality of frequency ranges. Each frequency range is divided into a plurality of frequency segments. A scan controlling thread of the wideband cable modem retrieves one of the central frequencies corresponding to one of the frequency ranges, and controls a plurality of channel locking threads to synchronously scan the plurality of frequency segments of the corresponding frequency range to lock onto a downstream channel according to the retrieved central frequency. Each of the channel locking threads of the wideband cable modem controls one of the tuners to scan one of the frequency segments to lock onto a downstream channel.

Abstract: A cable modem stores certificates including a root certificate authority (CA) certificate, a root CA public key, a manufacturer CA certificate, and a cable modem certificate. The cable modem reads the root CA public key, determines whether the root CA public key complies with a key industry standard, determines whether the manufacturer CA certificate is generated according to the root CA certificate, and determines whether the cable modem certificate is generated according to the manufacturer CA certificate.