1947 results about "Protocol data unit" patented technology

Embodiments of the subject application relate to methods and apparatuses for a delay status report associated with a protocol data unit (PDU) set. According to an embodiment of the subject application, a user equipment (UE) includes a processor and a transceiver coupled to the processor, and the processor is configured to: determine delay information associated with one or more protocol data unit (PDU) sets received from an upper layer of the UE, wherein the delay information includes at least one of: a remaining PDU set delay budget; a PDU set buffer delay; a PDU set delay budget offset; or first timing when receiving a PDU within the one or more PDU sets from the upper layer; and transmit a report including the delay information, wherein the report is at least one of: a delay budget report (DBR); a delay report (DR); an arriving timing report (ATR); or an enhanced buffer status report (EBSR).

A method of processing a protocol data unit (PDU) set for a data network includes steps of (a) receiving a first PDU packet of the PDU set, (b) receiving, subsequent to reception of the first PDU packet, a second PDU packet of the PDU set, (c) determining, after receiving the first and second PDU packets, a congestion status of the data network for the PDU set, (d) controlling, based on the determined congestion status, a handling state of the second PDU packet to match a handling state of the first PDU packet, and (e) transmitting the first PDU packet and the controlled second PDU packet to a destination receiver of the data network.

Systems, methods, and tools may schedule protocol data unit (PDU) sets. A wireless transmit receive (WTRU) may receive configuration information, including a delay threshold and a configured grant (CG) arrangement, from a network node. The WTRU may receive a first PDU subset and related information from an application. The WTRU may estimate the payload size and arrival time of a second PDU subset. Based on the estimates and the payload size of the first subset, the WTRU may determine the first and second groups of CG PUSCH occasions. If the estimated arrival time difference between the two subsets is larger than the delay threshold, the WTRU may identify an available CG PUSCH occasion. The information may be sent to the network node.

The invention provides a communication module low-delay switching control method based on HPLC and HRF, and relates to the technical field of data processing, and the method comprises the following steps: when an index continuously exceeds a dynamically adjusted judgment threshold, a switching judgment unit generates a mode switching enable signal, and initializes an HRF channel pre-synchronization sequence; based on a pre-stored HRF channel feature vector table, HRF channel negotiation and authentication handshake processes are executed in parallel while HPLC link state monitoring is maintained; through a dual-channel redundancy transmission mechanism, the key fault information is packaged into a final priority protocol data unit before the establishment of the HRF link is not completed, and redundancy forwarding is carried out through a reserved time slot window of the HPLC link; and after the handshake of the HRF link is completed, the switching control unit executes seamless switching of the data transmission channel. According to the invention, the accuracy of channel state judgment is improved.

Various aspects of the present disclosure relate to changing network slices for a protocol data unit (PDU) sessions. An apparatus receives a first signaling as a registration request from a user equipment (UE) to register with a first network slice, and the apparatus transmits a second signaling indicating acceptance of the registration and an allowability of the UE to register with an alternative network slice. The UE transmits the first signaling to request a registration with the first network slice, and receives the second signaling indicating the registration with the first network slice and an allowability to register with the alternative network slice. The UE transmits a third signaling to establish a first PDU session on the first network slice.

A first network node receives, from a second network node, a message indicating whether a first maximum number of protocol data unit (PDU) sessions, of a multi-access protocol data unit (MA-PDU) established for a wireless device on a network slice, has been reached for a first radio access technology (RAT) type, or a second maximum number of PDU sessions established on the network slice has been reached for a second RAT type.

Methods, apparatus, and systems for providing multicast handover are disclosed. In one example aspect, the method includes receiving, by a target radio access node (T-RAN) from a source radio access node (S-RAN) or from an access and mobility management function (AMF), a handover request including a multicast or broadcast context for a handover of a multicast and broadcast service (MBS) to the T-RAN. The method further includes binding a shared tunnel for the MBS and a flow in a unicast protocol data unit (PDU) session in a case that an MBS session identified in the multicast or broadcast context has already been established at the T-RAN, and sending, to an AMF, a message including a handover request acknowledgment or a path switch.

A first base station (BS) sends a first parameter indicating that the first BS configures protocol data unit (PDU) set importance (PSI) based discarding, for a PDU session, of a wireless device, terminated at the first BS. The first BS determines that resources of the first BS are congested, for the PDU session, and sends a general packet radio service tunneling protocol (GTP) message comprising a second parameter indicating activation of PSI based discarding for the PDU session.

A method of processing a protocol data unit (PDU) set for a data network includes steps of (a) receiving a first PDU packet of the PDU set, (b) receiving, subsequent to reception of the first PDU packet, a second PDU packet of the PDU set, (c) determining, after receiving the first and second PDU packets, a congestion status of the data network for the PDU set, (d) controlling, based on the determined congestion status, a handling state of the second PDU packet to match a handling state of the first PDU packet, and (e) transmitting the first PDU packet and the controlled second PDU packet to a destination receiver of the data network.

A system can communicate broadband cellular communications with a user equipment. The system can direct the user equipment to perform iterations of transmitting a keep alive report periodicity signal according to a packet data convergence protocol protocol data unit format. The system can, in response to determining that a consecutive threshold number of keep alive report periodicity signals of the iterations of transmitting the keep alive report periodicity signal has not been received, initiate a user equipment release transaction with regard to the user equipment.

There is provided a method in a node of a wireless communication network. The method comprises receiving from an application a protocol data unit (PDU) set corresponding to an encoded application data unit (ADU). The method further comprises determining an Application-Layer Forward Error Correction (AL-FEC) coding configuration associated with the encoded ADU and transmitting the PDU set. The method further comprises determining whether a cease criterion is satisfied, wherein the cease criterion is based on the AL-FEC coding configuration, and ceasing transmission of the PDU set based on the cease criterion being satisfied.

An apparatus of a user equipment (UE), the apparatus comprising a processor, and a memory storing instructions that, when executed by the processor, configure the apparatus to receive, from a base station of an operator network, Protocol Data Units (PDUs) carrying Artificial Intelligence (AI) model data in either a control plane or a user plane, and decapsulate the PDUs to obtain and store the AI model data, wherein the AI model data is indicative of an AI model configured for inference in Access Network (AN) protocol layers at the UE.

This disclosure provides systems, methods, and apparatuses for wireless communication. An example apparatus selects a resource unit (RU) for a physical (PHY) layer convergence protocol (PLCP) protocol data unit (PPDU). The selected RU includes a set of contiguous tones spanning a bandwidth. The apparatus maps the set of contiguous tones to a set of non-contiguous tones distributed across the frequency spectrum, and transmits the PPDU over the set of non-contiguous tones. Another example apparatus selects an RU of a group of RUs that collectively span a frequency spectrum, and formats a PPDU based on a first frequency bandwidth wider than the selected RU's bandwidth. The apparatus parses the contiguous tones of the selected RU to a set of non-contiguous tones spanning a unique segment of a second frequency bandwidth wider than the first frequency bandwidth, and schedules a transmission of the PPDU over the set of non-contiguous tones.

A communication method includes a first device that receives first indication information and a service flow identifier of a protocol data unit (PDU) session from a session management network element, where the first indication information indicates the first device to determine a transmission link for a service flow of the PDU session. The first device selects the transmission link for the service flow of the PDU session based on the service flow identifier and the first indication information.

The invention discloses a CAN message priority dynamic arbitration method and system based on event triggering, and the method comprises the steps: obtaining a discrete sampling signal of a CAN node of an engineering vehicle and a state register value of a CAN controller, converting the discrete sampling signal into a working condition data sequence, and obtaining a bus load rate through the state register value; obtaining an event state sequence according to the working condition data sequence; all CAN messages to be sent are constructed into a message data record, and the message data record with event semantics and dynamic priority labels is obtained according to the protocol data unit and the event state sequence; and according to the bus load rate and the event state sequence, sending a message data record with event semantics and dynamic priority annotations by adopting a token bucket mechanism through a three-level priority queue linked with a three-state state machine. According to the invention, the security key message in the system can still be transmitted in time under high load, and the bandwidth occupation and delay jitter caused by the low-priority message are avoided at the same time.

A data processing apparatus, configured in a terminal equipment, includes: setting processor circuitry configured to set a discard timer duration for a protocol data unit (PDU) Set; and processor circuitry configured to discard a PDU Set corresponding to an expired discard timer at a packet data convergence protocol (PDCP) layer when a discard timer expires.

Various aspects of the present disclosure relate to enhanced packet data convergence protocol (PDCP) operation for delay-critical services. An apparatus, such as a user equipment (UE), receives a configuration message for a PDCP entity of the UE. The configuration message indicates a set of timer configurations corresponding to a set of priority levels (e.g., protocol data unit (PDU) priority levels). A network equipment (NE) configures a mapping between the set of timer configurations and the set of priority levels and transmits the configuration message according to the mapping. The PDCP entity receives at least one service data unit (SDU) for transmission. The SDU is associated with a radio bearer and a priority level of the set of priority levels. The UE selects a timer configuration from the set of timer configurations based on the priority level associated with the SDU. The UE initiates a timer according to the timer configuration.

Method and apparatus for PDU set handling capability indication are disclosed. In one embodiment, session management function (SMF) comprises a processor and a transceiver coupled to the processor, wherein the processor is configured to determine PDU set handling capability of a RAN node; and transmit, via the transceiver, to UPF, an indication of activating or deactivating PDU set handling for PDU session or QoS flow (s) according to the PDU set handling capability of the RAN node to which the UPF is connected.

A method performed by a wireless transmit / receive unit (WTRU) may comprise: receiving, from a base station, configuration information; receiving, from an application layer, one or more uplink protocol data units (PDUs); determining a buffering delay for transmitting the one or more uplink PDUs in resources associated with configured grant (CG) physical uplink shared channel (PUSCH) occasions; and on a condition that the buffering delay is greater than a delay threshold and that there are no available resources associated with semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH)occasions within a time window, transmitting an indication of a time offset for the time window. The method may further comprise transmitting, to the base station, in a CG PUSCH occasion, the one or more uplink PDUs.

This disclosure describes systems, methods, and devices related to enhanced access coordination. A device may receive a physical layer protocol data unit (PPDU) transmitted by an access point (AP) as part of a transmission opportunity (TxOP), the PPDU including a data frame and a duration field indicating an end time of the TxOP. The device may synchronize, in both time and frequency, on the received PPDU based on the synchronization rules applicable to an uplink trigger-based (TB) transmission. The device may determine, based on the duration field of the data frame, a time at which to initiate a Defer Signal transmission. The device may transmit the Defer Signal after a defined time interval from the end time of the TxOP.

This disclosure provides methods, components, devices and systems for multi-layer signaling for ambient power (AMP) devices. Some aspects enable early differentiation between non-backscatter AMP device types through signaling in AMP downlink physical layer protocol data units (PPDUs). For example, a wireless device receives a first portion of an AMP downlink PPDU indicating an intended STA type (such as an active transmitter or an AMP-enabled device) and selectively receives subsequent portions of the AMP downlink PPDU in accordance with whether the type of the wireless device matches the indicated type. In scenarios in which the types match, the wireless device continues receiving the PPDU. Otherwise, the wireless device ceases reception to conserve energy and processing resources. The first portion may include one or more fields that indicate the intended STA type, may indicate a medium access control (MAC) frame type that implicitly indicates the intended STA type, or both.

A method performed by a user equipment (UE) may comprise: receiving a Registration Accept message including a validity time for at least one Single Network Slice Selection Assistance Information (S-NSSAI); establishing at least one PDU (protocol data unit) session associated with the at least one S-NSSAI, if the at least one S-NSSAI is included in an Allowed NSSAI or in a Partially Allowed NSSAI; and not initiating a UE-initiated Non-access stratum (NAS) transport procedure to send a Cellular Internet of Things (CIoT) user data nor a service request procedure to send the CIoT user data, if the at least one PDU session is established for the at least one S-NSSAI included in the partially allowed NSSAI and if a current TAI is not in the list of tracking areas (TAs) for which the S-NSSAI is allowed.

A wireless transmit / receive unit (WTRU) may transmit a request message to establish or modify a protocol data unit (PDU) session with a network. In an example, the request message may indicate that the PDU session is an alternative PDU session. Also, the WTRU may receive, from the network, indication information indicating that the PDU session is the alternative PDU session. Further, the WTRU may determine, based on the received indication information, whether the PDU session is in a drop state. Moreover, the WTRU may transmit, based on a determination that the PDU session is no longer in the drop state, uplink data associated with the PDU session. In a further example, the determination that the PDU session is no longer in the drop state may be based on indication information in an attention (AT) command. In addition, the indication information in the AT command may be received from an application.

Embodiments of the present application provide a communication method and a related device. The method is applied to an RLC layer of a data transmitting end. In the method, on the basis of a first timer and / or indication information, the data transmitting end triggers to transmit a protocol data unit (PDU) to a data receiving end, wherein the PDU comprises at least one of the following: first information and retransmission data, and the first information is used for acquiring a status report sent by the data receiving end. On the basis of the solution, the data transmitting end controls acquisition of the status report and / or transmission of the retransmission data by means of the first timer and / or the indication information, so that the efficiency of the data transmitting end acquiring the PDU status report and / or the data receiving end acquiring the retransmission data can be improved, thereby improving the retransmission performance of delay sensitive services.

This disclosure may propose a method for transmitting / receiving a physical protocol data unit (PPDU) with an improved structure and a device related thereto. A station (STA) related to this disclosure can generate an ELR PPDU that includes a data field. The ELR PPDU may include a legacy signal (L-SIG) field containing information related to the length of the ELR PPDU and a universal signal (U-SIG) field containing information for interpreting the ELR PPDU. For example, the L-SIG field, the RL-SIG field, and the U-SIG field may be generated based on the first subcarrier frequency spacing. For example, the ELR PPDU may further include a Short Training Field (STF), a Long Training Field (LTF), an ELR Signal (ELR-SIG) field, and a data field. For example, the STF, the LTF, the ELR-SIG field, and the data field may be generated based on the second subcarrier frequency spacing.

The invention discloses an information transmission method and a communication device, which can reestablish an uplink RDS link in time and recover service transmission as soon as possible. The method comprises: when a network open network element serving a terminal is reselected as a first network open network element, a session management network element establishes a context of a protocol data unit (PDU) session with the first network open network element, the PDU session being a session between the terminal and the first network open network element; and under the condition that the context of the PDU session is successfully established, the session management network element sends indication information to the terminal, the indication information is used for indicating negotiation and reconstruction of an uplink reliable data service (RDS) link, and the uplink RDS link is carried by the PDU session.

Example embodiments of the present disclosure relate to methods, devices, and computer storage medium for communication. The method comprises: receiving, at a terminal device from a network device, at least one of the following parameters associated with a protocol data unit (PDU) set: a first parameter indicating whether all PDUs in the PDU set are needed by an application layer; a second parameter indicating whether the PDU set is to be discarded when an additional PDU set associated with the PDU set is lost or discarded; a third parameter indicating a discard timer for the PDU set; or a fourth parameter indicating a reordering timer for the PDU set, and processing the PDU set based on the received at least one of the parameters. In this way, packet processing with PDU set granularity is supported, and PDU-set based handling is also supported. Therefore, communication quality and network performance are improved.

A method and device for applying a different security policy, per service traffic, to a protocol data unit (PDU) session in a wireless communication system. The method comprises receiving, by a session management function (SMF) managing a session for a user equipment (UE), first configuration information about a first user plane security policy of the UE from a unified data management (UDM) managing subscription information about the UE, receiving, by the SMF, second configuration information about a second user plane security policy to be applied to a specific service data flow from a policy and control function (PCF) managing a policy and charging control (PCC) rule, and determining a user plane security policy to be applied to the UE based on one selected from the first user plane security policy and the second user plane security policy according to priority.

Method and apparatus for processing Extended Reality (XR) traffic are disclosed. In one embodiment, session management function (SMF) comprises a processor and a transceiver coupled to the processor, wherein the processor is configured to construct, for specific user equipment (UE) or Protocol Data Unit (PDU) session, stream information and PDU set integrated packet handling information, wherein, the stream information includes at least one stream indicator each indicating a stream associated with XR traffic, and the PDU set integrated packet handling information includes indication for PDU set integrated packet handling associated with each stream indicator; and transmit, via the transceiver, the constructed stream information and PDU set integrated packet handling information to User Plane Function (UPF) or Radio Access Network (RAN) node.

A wireless transmit / receive unit (WTRU) or network node may perform active discarding based on PDU set correlation. A WTRU may receive a message from a network node, for example, indicating a rule, an active discarding / dropping indication, an active discarding option, a protocol data unit (PDU) set notification parameter, and / or a timing correlation parameter. The PDU set may be obtained. The WTRU may determine an age of the PDU set (e.g., duration of time) when it is determined that the PDU set is the reference PDU set. The WTRU may determine whether the PDU set is to be used or discarded, for example, based on the active discarding / dropping indication, the rule, the age of the PDU set, and / or a propagated PDU set dropping information. The WTRU may discard / drop the PDU set. The WTRU may send a notification message to a network entity.