23 results about "Protocol entity" patented technology

A user equipment (UE) is configured for wireless communication. The UE is configured to receive a first data unit set in a first protocol entity. The first protocol entity is configured as a non-signaling radio bearer. The UE is configured to start a timer in response to receiving a first data unit. The first data unit is a data unit in the first data unit set. The UE is configured to generate a second data unit set based on the first data unit in the first data unit set. The UE is configured to send, in response to determining that the timer is expired, an indication to a second protocol entity. The indication is an indication to discard the second data unit set. A protocol layer in which the first protocol entity is located is above a protocol layer in which the second protocol entity is located.

Various solutions to support aggregation of user equipments (UEs) with non-3GPP connections in mobile communications are described. The remote UE may connect with the relay UE using a non-3GPP connection. A remote UE may receive a radio resource control (RRC) message from a network node of a wireless network. The RRC message includes a configuration of a non-3GPP connectivity (N3C) indirect path between the remote UE and the network node through the relay UE. The remote UE performs one or more first data transmission or reception on the N3C indirect path according to the configuration. The first data transmission or reception on the N3C indirect path is made over a connection of the non-3GPP connection between a first protocol entity in the remote UE and a second protocol entity in the relay UE.

A method for fast handover recovery of a receiving data link layer protocol entity, such as a receiving packet data convergence protocol (PDCP) entity, is provided. A method performed by a receiving data link layer protocol entity includes the step of delivering a plurality of data packets to a receiving high layer transport protocol entity. Moreover, the method comprises the step of re-delivering a selected number of last delivered data packets of the plurality of data packets to the receiving higher layer transport protocol entity a number of times during a handover process.

This disclosure proposes a communication method, communication device, communication system, and storage medium. The method includes: sending a PDCP protocol data unit (PDU) using a first packet data fusion protocol (PDCP) entity of the first device. The PDCP PDU is used to indicate at least one of the following: the relevant configuration of a first function of the first PDCP entity, and the relevant configuration of a first field in the PDCP packet header corresponding to the first PDCP entity. The method of this disclosure ensures communication performance and communication efficiency.

The present disclosure discloses a method and apparatus for determining a hyperframe number (HFN) for a Packet Data Convergence Protocol (PDCP) entity, applicable to the field of communications technology. The method, configured to be executed by a terminal device, includes: receiving indication information sent by a network device, wherein the indication information includes hyperframe number (HFN) information; and determining the HFN value of the Packet Data Convergence Protocol (PDCP) entity based on the HFN information. This allows the terminal device and the network device to maintain a consistent understanding of the HFN value, avoiding data decryption failures or integrity verification failures and improving data transmission reliability.

The present disclosure describes methods, system, and devices for receiving multicast and broadcast service (MBS) data by a group of second ends from a first end. One method includes receiving, by a second packet data convergence protocol (PDCP) entity at a second end, the MBS data from a first PDCP entity at the first end. Another method includes receiving, by a second acknowledge mode (AM) point-to-multipoint (PTM) radio link control (RLC) entity at a second end, the MBS data from a first AM PTM RLC entity at the first end. Another method includes receiving, by a second end, a piece of information sent from the first end, wherein the piece of information comprises at least one of the following: a first service identity indicating a MBS service or session in RAN, an indication on whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled.

The application discloses a kind of extensible stateful protocol entity program logic vulnerability detection method and system.Test preparation stage: locally deploying the entity program to be tested, a script file describing the traffic message of the stateful protocol to be tested and its corresponding message type is used as input;State machine learning stage: select input symbol from script file and map to corresponding message message, then fuzz it to generate test case;And judge whether the test case still belongs to the symbol, yes, send to the program to be tested for execution, otherwise modify;Collect the response message after the execution of the program to be tested, and map to the corresponding output symbol, use model learning to build a minimum deterministic Mealy state machine corresponding to the protocol entity program to be tested;Result arrangement and analysis stage, the result state machine obtained by learning is pruned and processed.The application is suitable for the detection of logic vulnerability of stateful protocol entity program, and has strong scalability, high vulnerability detection efficiency.

This invention discloses a minimal recursive delegated communication method and system, belonging to the field of computer network communication. The system contains only two protocol primitives, `register` and `push`, and achieves complete dynamic discovery and task delegation functions through delegated interaction between gateway entities and protocol entities. The gateway entity is deconstructed into three protocol entities: server, brain, and agent. It supports topology reversal where the gateway itself is employed by a higher-level gateway as a protocol entity, achieving infinite recursion and indistinguishability of the delegate chain. The method employs a three-layer abstraction system (L0 / L1 / L2) to separate protocol specifications, extension mechanisms, and application semantics, allowing for the emergence of organizational forms such as bureaucracy and market mechanisms through replaceable employment decision rules. This invention demonstrates the minimal completeness of delegated networks and is applicable to scenarios such as AI multi-agent collaboration, IoT device management, and social organization simulation.

The invention provides a heterogeneous device multi-protocol adaptive access method and device based on an association graph. The method provided by the invention comprises the following steps: acquiring heterogeneous device data and protocol data; constructing a first layer of nodes by a heterogeneous device entity, constructing a second layer of nodes by a protocol entity, and determining map nodes of an upper layer and a lower layer; traversing the first layer of nodes, and determining a connection relationship between the heterogeneous device entity corresponding to each node and the protocol entity corresponding to the second layer of nodes; traversing the second layer of nodes, determining the connection relationship between the protocol entities corresponding to each node, and completing the construction of the association graph; and determining a target protocol matched with the to-be-accessed target heterogeneous device based on the association graph, and accessing the target heterogeneous device based on the target protocol. The method and the device provided by the invention are used for realizing efficient and accurate protocol matching of heterogeneous equipment, solving the problems of low efficiency, poor adaptability and difficulty in knowledge reuse of a traditional method, and improving the automation and intelligence level of multi-protocol equipment access in an industrial field.

Provided are a communication method and communication devices. The communication method comprises: a first protocol layer sending a first data packet to a first protocol entity or a second protocol entity on the basis of a first condition, wherein the first protocol entity and the second protocol entity are located in a second protocol layer, transmission modes of the first protocol entity and the second protocol entity are different, and the first condition is associated with one or more of the following: the type of the first data packet, the remaining transmission time of the first data packet, the amount of data to be transmitted of the first protocol entity, a QoS attribute of the first data packet, information of a data set to which the first data packet belongs, and association relationships between the first data packet and other data packets.

This invention discloses a method for monitoring the status of high-voltage outgoing line switchgear based on 5G wireless communication. The method is executed by a first protocol entity of a mobile terminal and includes: receiving a data unit; parsing the data unit to obtain a first data sub-unit and a second data sub-unit; determining a second protocol entity instance corresponding to a first channel identifier; determining a first delivery priority of the first data sub-unit and a second delivery priority of the second data sub-unit based on priority adjustment conditions; and delivering the first data sub-unit and the second data sub-unit to the second protocol entity instance based on the first delivery priority and the second delivery priority. This invention can achieve priority delivery of alarm-type sub-data in scenarios with the same channel identifier and the same second protocol entity instance, reducing the latency of abnormal information processing and improving the real-time performance and reliability of high-voltage outgoing line switchgear status monitoring.

This invention relates to a protocol fuzzing method and system based on the states of long-lifecycle enumerated variables. The method includes the following steps: S1: Static enumeration declaration statement instrumentation analysis stage; S2: Short-lifecycle enumeration variable dynamic analysis stage; S3: Static assignment statement instrumentation analysis stage; S4: Fuzzing stage. The system includes a static analysis module, a dynamic analysis module, a network I / O module, and a mutation feedback module. This invention captures the allocation and use of enumeration type variables in the source code of the protocol entity program under test through static analysis. State transitions are characterized by monitoring changes in the value range of these enumeration variables, and a corresponding state tree structure is constructed, thereby enabling stateful gray-box fuzzing of any protocol entity program under test without additional manual analysis.

This invention provides a network protocol vulnerability detection method and system based on message sequence attribution optimization, addressing the problems of existing gray-box fuzzing methods for network protocols in three aspects: message sequence attribution strategy, message sequence evaluation and selection, and selection of mutation point locations in message sequences. The method includes: acquiring the target code of the protocol under test; using the protocol under test for communication; collecting communication traffic; generating an initial message sequence set; performing fuzzing on the protocol under test; collecting code coverage information and status feedback information generated during the runtime of the protocol entity under test, and determining whether the currently tested message sequence is an interesting message sequence; and then performing the next round of fuzzing. This invention is applicable to all network protocol fuzzing tools based on AFLNET improvements and has advantages such as simple implementation principle, strong code coverage and vulnerability discovery capabilities.

A packet processing method and apparatus. The packet processing method includes: in a case that a first condition is met, a first protocol entity prioritizes transmission of a target packet or prioritizes discarding of the target packet, where the first condition includes at least one of the following: the first protocol entity receives first indication information from a second protocol entity; and the first protocol entity does not receive second indication information from the second protocol entity; where the target packet is a packet corresponding to the first indication information or the second indication information, and the second protocol entity is an upper-layer protocol entity of the first protocol entity. In the embodiments of this application, data transmission efficiency can be improved.

A sidelink relay protocol entity, which may be a sidelink relay adaptation protocol (SRAP) entity, is configured for a user equipment (UE) in a sidelink relay network. The UE is configured to receive, from an entity, a packet including a header containing a first and a second UE ID fields. The sidelink relay protocol entity discards the packet if a first identifier in the first UE ID field or a second identifier in the second UE ID field do not match a respective identifier in the configuration information or a third identifier indicated in the bearer ID field does not match a respective identifier in the configuration information. The first identifier may be a source (SRC) UE identifier, and the second identifier may be a destination (DST) UE identifier.

The invention provides a communication method, device and system for a task session. The method comprises the following steps that: a first service data adaptation protocol (SDAP) entity is used for receiving a packet; and the first SDAP entity sends an SDAP packet generated by the first SDAP entity based on the packet, the SDAP packet comprising information about a task session, the task session being used to provide a task service to a task customer, the task service being a service simultaneously supporting PDU connection and data processing.

Systems, methods, apparatuses, and computer program products for network coding are provided. One method may include receiving, at a second packet data convergence protocol (PDCP) entity, one or more original packet data convergence protocol (PDCP) protocol data units (PDUs) from a first PDCP entity for a radio bearer. The method may also include coding, at the second packet data convergence protocol (PDCP) entity, the original packet data convergence protocol (PDCP) protocol data units (PDUs) to produce one or more network coded packet data convergence protocol (PDCP) protocol data units (PDUs).

An apparatus comprising: means for providing an apparatus with a counter in a protocol entity; means for incrementing said counter in response to a timer used by the protocol entity in order to retransmit a poll expiring; and means for providing a Radio Resource Control (RRC) layer of said apparatus or a second apparatus with an indication in response to the counter reaching a predetermined threshold value.

The present disclosure provides a communication method, a communication device, a communication system, and a storage medium. The method comprises: using a first packet data convergence protocol (PDCP) entity of a first device to send a PDCP protocol data unit (PDU), the PDCP PDU being used for indicating at least one of the following: a related configuration of a first function of the first PDCP entity, and a related configuration of a first field in a PDCP header corresponding to the first PDCP entity. The method of the present disclosure ensures communication performance and communication efficiency.

Various solutions for supporting user equipment (UE) aggregation with non-3rd generation partnership project (3GPP) connection in mobile communications are described. A remote UE may connect to a relay UE using a non-3GPP connection. The remote UE may receive a radio resource control (RRC) message from a network node of a wireless network. The RRC message may include a configuration of a non-3GPP connection (N3C) indirect path between the remote UE and the network node through the relay UE. The remote UE may perform one or more first data transmissions or receptions on the N3C indirect path according to the configuration. The first data transmissions or receptions on the N3C indirect path are performed with an association between a first protocol entity in the remote UE and a second protocol entity in the relay UE over the non-3GPP connection.

The application discloses a resource management method, device, terminal and readable storage medium, and belongs to the technical field of communication. The resource management method comprises the following steps: a first protocol entity of a terminal acquires auxiliary information corresponding to at least two network nodes; the first protocol entity of the terminal judges whether a target bearer enters a survival time state or exits the survival time state based on the auxiliary information; a second protocol entity of the terminal acquires first indication information related to the target bearer, and adopts a target resource allocation rule based on the first indication information; and the terminal performs uplink resource allocation on the target bearer according to the target resource allocation rule.

The application discloses a protocol vulnerability mining test method and system based on fine-grained state guidance. The application represents the state conversion of a protocol entity program in a fine-grained manner, and equivalent branch coverage snapshots of a to-be-tested protocol entity program to states of the protocol entity program. If a new branch coverage is triggered, it is considered that a new state of the protocol entity program is triggered. When the new state is triggered, a prefix message chain list corresponding to the new state is generated to save message sequence information reaching the state. After a state of the current stage test is selected by a fine-grained state selector, the protocol entity program is guided to the corresponding state while generating the message sequence through the corresponding prefix message chain row array, and sufficient fuzzy test work is carried out on the state to explore deeper branch paths. The fine-grained state is dynamically adjusted and updated in the fuzzy test process. The application improves the branch coverage rate of the protocol entity program and mines more protocol vulnerabilities.

The invention provides an industrial protocol conversion method and device, a terminal and a medium, and relates to the industrial internet technology, and the method comprises the steps: respectively extracting a semantic entity and a physical operation entity from an upstream application protocol message and a downstream industrial equipment protocol message, and calculating the comprehensive similarity between the semantic entity and the physical operation entity; constructing an industrial protocol knowledge graph based on the similarity so as to execute bidirectional conversion between the upstream protocol request and the downstream protocol message based on the knowledge graph; acquiring access time sequence data of each downstream protocol entity in real time; and predicting the access demand of each downstream protocol entity in a future time window based on the data, and dynamically adjusting polling strategies and protocol conversion resource allocation for different downstream protocol entities according to a prediction result. According to the method, the industrial protocol knowledge graph is constructed, and the polling frequencies and protocol conversion resource allocation of different equipment registers are dynamically adjusted, so that instruction semantics can be intelligently understood, the mapping relation is adaptively learned, and load balancing is realized.