A method of processing received Packet Data Convergence Protocol (PDCP) data packets in a PDCP layer module of a telecommunications base station, includes receiving by the PDCP layer module a plurality of data packets, determining by an analysis module of the PDCP layer module a proportion of the data packets received out of sequence over a predetermined number of received data packets, setting an expiry time of a reordering timer of a buffering and reordering module of the PDCP layer module according to the proportion, and starting the reordering timer upon receiving an out of sequence data packet in which the out of sequence data packet is added to a reordering buffer of the buffering and reordering module. If the reordering timer reaches the expiry time, data packets are removed from the reordering buffer and transferred from the PDCP layer module to another layer module of the base station.

A component of a cellular communication system is configured to prioritize data packets based on packet tags that have been associated with the data packets. The packet tags may comprise an application identifier and a customer identifier, as examples. A Packet Data Convergence Protocol (PDCP) layer of a radio protocol stack receives a data packet and associated packet tags and assigns the data packet to a preferred transmission queue or a non-preferred transmission queue, based on the packet tags associated with the data packet. In order to manage queue overflows, data packets of the non-preferred transmission queue may be discarded when they have been queued for more than a predetermined length of time. Data packets of the preferred transmission queue, however, are retained regardless of how long they have been queued.

This application relates to the field of data communication, and in particular, to a packet buffering method, an integrated circuit system, and a storage medium. The method can improve utilization of the on-chip buffer. The packet buffering method may be applied to a network device. The network device includes a first storage medium and a second storage medium. The first storage medium is a local buffer, and the second storage medium is an external buffer. The method may include: receiving a first packet, and identifying a queue number of the first packet, where the queue number indicates a queue for storing the first packet; querying a queue latency based on the queue number; determining a first latency threshold based on usage of the first storage medium; and buffering the first packet in the first storage medium or the second storage medium based on the queue latency and the first latency threshold.

The present disclosure generally relates to a device, method, or system for time sensitive networking. In an example, the device can include a time-sensitive networking controller and a scheduler. The device also includes an enhanced gate control list maintained on the time-sensitive networking controller to include a direct memory access address, a launch time, and a pre-fetch time for a data packet. The device may also include a transmitter of the time-sensitive networking controller to transmit the data packet retrieved using the direct memory access address at the launch time identified by the scheduler.

Control logic circuitry stores packets in a queue in an order in which the packets are received. A head entry of the queue corresponds to an oldest packet in the order. The control logic circuitry receives flow control information corresponding to multiple target devices including at least a first target device and a second target device. The control logic circuitry determines, using the flow control information, whether the oldest packet stored in the head entry can be transferred to the first target device, and in response to determining that the oldest packet stored in the head entry cannot be transferred to the first target device, i) selects an other entry with an other packet behind the head entry according to the order, and ii) transfers the other packet to the second target device prior to transferring the oldest packet in the head entry to the first target device.

Provided are a method for a first device to perform wireless communication and a device supporting same. The method comprises the steps of: receiving an auxiliary information request from a second device; generating auxiliary information on the basis of the auxiliary information request; transmitting first sidelink control information (SCI), including scheduling information about a physical sidelink shared channel (PSSCH), to the second device through a physical sidelink control channel (PSCCH), wherein the first SCI includes information related to frequency resource allocation, information related to time resource allocation, information related to a demodulation reference signal (DMRS) pattern, and information related to a modulation and coding scheme (MCS); and transmitting the auxiliary information to the second device through the PSSCH in response to the auxiliary information request, wherein the auxiliary information may include information for sidelink (SL) resource selection for the second device.

The invention relates to a method for efficiently discarding data packets destined to a mobile station connected to both a master base station and a secondary base station. The master base station configures a secondary discard function in a lower layer of the secondary base station, based on the master discard function in the higher layer of the master base station. The master base station forwards the data packet from the higher layer to the lower of the secondary base station. The secondary discard function of the lower layer at the secondary base station discards the received data packet upon expiry of the secondary timer started by the lower layer upon reception of the data packet from the higher layer at the master base station.

This application provides data packet scheduling methods and apparatuses. One method includes: A first network device receives, at a first moment, a data packet from a second network device in a network, the first network device determines a first reference moment based on the first moment and time information carried in the data packet, the first network device determines, based on the first reference moment, a target queue from a plurality of queues included in a first queue system and adds the data packet to the target queue, and the first network device processes the target queue according to a scheduling rule of the plurality of queues.

A component of a cellular communication system is configured to prioritize data packets based on packet tags that have been associated with the data packets. The packet tags may comprise an application identifier and a customer identifier, as examples. A Packet Data Convergence Protocol (PDCP) layer of a radio protocol stack receives a data packet and associated packet tags and assigns the data packet to a preferred transmission queue or a non-preferred transmission queue, based on the packet tags associated with the data packet. In order to manage queue overflows, data packets of the non-preferred transmission queue may be discarded when they have been queued for more than a predetermined length of time. Data packets of the preferred transmission queue, however, are retained regardless of how long they have been queued.

This invention concerns the transmitting and receiving of digital media packets, such as audio and video channels and lighting instructions. In particular, the invention concerns the transmitting and receiving of redundant media packet streams. Samples are extracted from a first and second media packet stream. The extracted samples are written to a buffer based on the output time of each sample. Extracted samples having the same output time are written to the same location in the buffer. Both media packet streams are simply processed all the way to the buffer without any particular knowledge that one of the packet streams is actually redundant. This simplifies the management of the redundant packet streams, such as eliminating the need for a “fail-over” switch and the concept of an “active stream”, The location is the storage space allocated to store one sample. The extracted sample written to the location may be written over another extracted sample from a different packet stream previously written to the location. These extracted samples written to the same location may be identical.