30 results about "Data radio bearer" patented technology

The present disclosure describes methods, system, and devices for configuring dynamic quality of service (QoS) parameters for protocol data unit (PDU) sets. One method includes determining, by a first network node, a data radio bearer (DRB) level PDU set QoS parameter (PSQP) configuration for one or more DRBs; and sending, by the first network node, a first request message to a second network node, wherein the first request message comprises the determined DRB level PSPQ for the one or more DRBs. In some implementations, the PDU set traffic is carried over the one or more DRBs.

A data transmission method, wherein when small data arrives, user equipment (UE) in a radio resource control inactive state RRC_INACTIVE can establish a communication with a base station without entering an RRC connected state, so as to perform small data transmission (SDT). An RNAU timer for controlling a periodic radio access network (RAN) based notification area update is set for the base station. For the SDT, an SDT timer for SDT small data transmission is set. A small data transmission data radio bearer (DRB) is configured for the user equipment. When an RRC resume procedure is triggered by arrival of data at the DRB, a high layer triggering small data transmission, or the like, the user equipment starts the SDT timer.

A method executed by the central unit of a gNodeB is disclosed, the method comprising: determining that the target cell configuration of the target cell for handover to a user equipment does not correspond to the source cell configuration of the source cell for handover to the user equipment, wherein the target cell is controlled by the gNodeB; determining, based on the determination that the target cell configuration does not correspond to the source cell configuration, to release and add at least one data radio bearer for handover to the user equipment; and transmitting a UE context establishment request message to the distributed unit of the gNodeB, the UE context establishment request message including an indication to instruct the preparation of a cell group configuration for handover to the user equipment to release and add at least one radio link control bearer associated with the at least one data radio bearer.

Embodiments of the present disclosure relate to methods and apparatuses for duplication communication. According to an embodiment of the present disclosure, a method includes: receiving configuration information associated with duplication for data radio bearer (DRB) between a terminate node and a donor node; and in response to the duplication for data radio bearer being activated, transmitting a set of original packets and a set of duplicate packets in up link. Embodiments of the present disclosure solve issues about applying a DRB duplication mechanism in an integrated access and backhaul (IAB) system, which can improve and facilitate the implementation of the IAB system.

Wireless communication methods are disclosure. A wireless communication method includes determining, by a user equipment (UE), a configuration of at least one radio bearer of the user equipment for transmitting a SLPP (sidelink positioning protocol) message; and transmitting, by the UE, the SLPP message carried by the at least one radio bearer according to the configuration, where the at least one radio bearer includes at least one of a DRB (data radio bearer) or an SRB (signaling radio bearer).

The present disclosure relates to techniques for signaling related to quality of service flow to data radio bearer mapping updates. The present application relates to devices and components, including apparatuses, systems, and methods for techniques for signaling related to quality of service flow to data radio bearer mapping updates in wireless networks.

This disclosure relates to 5G Multicast-Broadcast Services (MBS): multiplexing, reliability, and power saving. This document describes methods and apparatus for multicast / broadcast MBS services. The embodiments described herein relate to managing multiplexed MBS services, prioritizing MBS-related UL services, unicast UL services, and SL services, handling HARQ retransmissions on C-RNTI, supporting PDCP status reporting for MBS services, and procedures for enabling a Radio Transmit / Receive Unit (WTRU) to join an initiated / active multicast session. In one example, a WTRU may receive multiplexed MBS services via one or more MBS Radio Bearers (MRBs) and / or one or more unicast Data Radio Bearers (DRBs). The WTRU may be configured with a single Service Data Adaptation Protocol (SDAP) entity for these MBS services, and service demultiplexing may be performed at the SDAP layer. The WTRU may be configured to demultiplex multiple logical channels across different MBS services, wherein these logical channels are received on the same transport block.

This application discloses a data transmission method, a base station, a terminal, a storage medium, and a computer program product. The data transmission method applied to the base station includes: allocating a Data Radio Bearer (DRB) for the service data stream of the computing task based on the service type of the computing task requested to be offloaded by the terminal; determining the mapping relationship between the service data stream and the DRB; configuring the mapping relationship to the terminal; and establishing a first session with the terminal; wherein the first session terminates at the base station and the terminal; and transmitting the service data stream of the computing task with the terminal on the DRB using the mapping relationship.

The application discloses a data radio bearer configuration method and device. The method comprises the following steps: configuring multiple sets of transmission parameter sets for a data radio bearer, wherein each set of transmission parameter sets comprises transmission parameters of at least one protocol layer; establishing a mapping relationship between at least one data group in a quality of service flow and at least one set of transmission parameter sets; and dynamically selecting a transmission parameter set currently associated with the quality of service flow or the data group through signaling. The application also comprises a network-side device, a terminal-side device and a communication system for implementing the method. The application solves the problem that the existing data radio bearer configuration cannot adapt to the importance difference of internal data of the quality of service flow and the sudden change of the quality of service, and is especially suitable for 6G intelligent interaction services, and can realize rapid adjustment of a transmission strategy and fine quality of service guarantee.

A wireless transmit receive unit (WTRU) and methods to transmit uplink protocol data units (PDUs) associated with a quality of service (QOS) flow with differing priority levels on a per-PDU basis are disclosed. A WTRU receives WTRU packet data unit (PDU) set detection rules from a network entity such as a session management function (SMF). The WTRU receives, from higher layers, a PDU associated with a quality of service (QOS) flow for uplink transmission. The WTRU determines a priority level of the received PDU, irrespective of the associated QoS, based on the WTRU PDU set detection rules and determines a data radio bearer (DRB) or logical channel to transmit the PDU based on the determined priority level. Additional embodiments are disclosed.

Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment includes: in the case that the user equipment is in an inactive state and needs to perform small data transmission, triggering a radio resource control (RRC) connection resumption procedure; and in the RRC connection resumption procedure, using, by the user equipment, a predefined default configuration for a data radio bearer (DRB), and restoring configurations in RRC configurations for the DRB other than the default configuration. Therefore, in the case that user equipment is in an inactive state and needs to perform small data transmission, additional signaling overhead can be avoided, and power consumption can be reduced, thereby improving communication efficiency and reliability of a wireless communication system.

Embodiments of this application provide a communication method and a related apparatus, to meet a multicast service data packet transmission security requirement. An access device may determine a user plane security active state of a multicast data radio bearer (DRB) in a protocol data unit (PDU) session, and indicate the user plane security active state of the multicast DRB to a terminal. The user plane security active state includes whether integrity protection is activated and / or whether confidentiality protection is activated. In addition, the access device configures a multicast packet data convergence protocol (PDCP) layer entity based on the user plane security active state of the DRB for transmitting multicast service data. The access device may further determine a user plane security active state of a unicast DRB, indicate the user plane security active state to the terminal, and modify a unicast PDCP layer entity.

The present disclosure provides a method executed by a user equipment, and a user equipment. The method executed by the user equipment (UE) includes: receiving, by the UE, a radio resource control release (RRCRelease) message from a base station; and in the case where a suspendConfig field is included in the RRCRelease message and sdt-Config is configured, executing, by the UE, any one of the following operations: operation 1-1: re-establishing radio link control (RLC) entities associated with other RLC bearers that are not suspended except RLC entities associated with broadcast MBS radio bearers (MRBs); and operation 1-2: re-establishing RLC entities associated to RLC bearers that are not suspended of a data radio bearer (DRB) and PTP RLC entities associated to RLC bearers that are not suspended of multicast MRBs.

Methods and devices are provided in a wireless communication system. A first radio resource control (RRC) connection release message is received that includes a resume identity. A random access preamble is transmitted. A random access response including timing alignment information and an uplink grant is received. A medium access control (MAC) protocol data unit (PDU) including the uplink data and an RRC connection resume request message is transmitted. The RRC connection resume request includes the resume identity. An RRC message is received. The random access preamble is selected from a preamble group for transmitting the uplink data associated with a data radio bearer (DRB).

This disclosure provides a communication method and apparatus. The communication method includes: receiving, by A first entity of a terminal device, first information from a first data radio bearer DRB. The first information is related to first data. The first data belongs to the first DRB. The first entity of the terminal device determines first duration based on the first information. The first duration is duration in which transmission of second data is expected to be completed, and the second data belongs to a second DRB. The first duration is used to determine delay information of a status report, and / or the first duration is used to trigger sending of the status report. The first entity is a packet data convergence protocol PDCP entity corresponding to the second DRB, or the first entity is a medium access control MAC entity that processes the second data.

A method is disclosed, comprising: determining whether a target cell configuration of a target cell for a handover of a user equipment corresponds to a source cell configuration of a source cell for the handover of the user equipment; based on determining that the target cell configuration does not correspond to the source cell configuration, determining to release and add at least one data radio bearer for the handover of the user equipment; and transmitting, to a distributed unit of a radio access network node controlling the target cell, an indication to indicate the release and the addition of the at least one data radio bearer for the handover of the user equipment.

This document discloses systems and methods for managing the synchronization of Protocol Data Unit (PDU) sessions between a User Equipment (UE) and a network. In some embodiments, determining whether a message including a PDU session state information element (IE) should be sent is based on previous messaging between peer entities of the network. In some embodiments, a determination is made to inform the peer entity of the relevant PDU session state after receiving an expected reply message in response to a previous messaging. In some cases, when it is determined that each entity has a matching PDU session state, a reply message without a PDU session state IE is sent from one entity to the peer entity. Situations involving faults detected at the network and cases where an entity activates a Data Radio Bearer (DRB) for a PDU session that is inactive at its peer are also discussed.

Provided are a wireless communication method, a terminal device, and an access network device. The method comprises: a terminal device sends first capability information of the terminal device to an access network device by means of a first data radio bearer (DRB), the first DRB being established on the basis of mandatory capability information of the terminal device, or the first DRB being established on the basis of second capability information of the terminal device. In embodiments of the present application, the first DRB can be established on the basis of the mandatory capability information of the terminal device, or the first DRB can be established on the basis of the second capability information of the terminal device, so that the terminal device can subsequently transmit the capability information of the terminal device by means of the first DRB, thereby facilitating the transmission of the capability information of the terminal device by means of a user plane.

Embodiments of the present disclosure relate to a control plane system (CPS) of a radio access network (RAN) node. The CPS is configured to detect a protocol data unit (PDU) session established between a user equipment (UE) and a data network, and generate a session establishment request based on the detection. The session establishment request includes a first information element (IE) for creating a packet detection rule (PDR) to classify one or more IP packets received from the data network and addressed to the UE as downlink (DL) packets, and a second IE for creating a plurality of forwarding actions corresponding to the PDR to route the DL packets from a user plane system (UPS) to the UE over a data radio bearer. The CPS is further configured to send the session establishment request to the UPS to facilitate the UPS routing the downlink packets to the UE over the DRB.

This disclosure proposes an uplink data processing method and apparatus applicable to the field of communication technology. The method executed by the terminal device includes: during the Small Data Transmission (SDT) process, sending a first indication information to the network device. The first indication information is used to indicate whether the Non-SDT Radio Bearer (non-SDT DRB) on the terminal device side carries uplink data to be transmitted. This allows the network device to obtain the information of the non-SDT DRB on the terminal device side in a timely manner, and then process the uplink data, effectively avoiding data loss and minimizing the transmission delay of the data carried in the non-SDT DRB.

The application discloses a multi-path configuration method and device, a communication device and a readable storage medium, and belongs to the wireless technical field. The multi-path configuration method in the application embodiment comprises the following steps: a terminal receives first information; the first information is used for configuring a plurality of non-direct connection paths, and the configuration granularity of the non-direct connection path is each terminal or each data radio bearer (DRB). Therefore, the plurality of non-direct connection paths can be configured.

The application provides an information transmission method and device, relates to the field of communication, and can match the transmission rate of a network with the sending rate of source data, so that network congestion or resource waste and the like are alleviated, and user experience is improved. The method comprises the following steps: a first device acquires and sends first information, the first information indicates that any one of a first quality of service (QoS) flow, a first data radio bearer (DRB) or a first logical channel (LCH) supports adjusting the sending rate of data, the first QoS flow comprises at least one QoS flow, the first DRB comprises at least one DRB, and the first LCH comprises at least one LCH.

Various aspects of this disclosure relate to scheduling data radio bearers (DRBs) in Network Energy Saving (NES) mode. An apparatus, such as a network device (NE), transmits a mapping of NES flows to a DRB to a user equipment (UE). The NE configures the DRB at least in part based on an NES category and configures one or more bandwidth portions (BWPs) according to at least one NES configuration of that NES category. The NE configures scheduling restrictions on mapped uplink logical channels according to the NES DRB configuration and associates the DRB with one or more BWPs. The NE transmits mapping information for the NES DRB configuration to the one or more BWPs to the UE. The UE receives the mapping of NES flows to the DRB from the NE and receives the mapping information for the NES DRB configuration to the BWPs.

According to implementations, a communication device receives a packet data convergence protocol (PDCP) protocol data unit (PDU) over a data radio bearer (DRB) configured for the communication device. The PDCP PDU includes an indication of a delivery mode to be used in delivering PDCP SDUs received on the DRB to an upper layer associated with the communication device, where the indication of the delivery mode indicates in-order delivery (IOD) or out-of-order delivery (OOD). The communication device processes the PDCP PDU to produce a PDCP SDU and a COUNT value associated with the PDCP SDU. The communication device delivers the PDCP SDU to the upper layer in accordance with an indication of the delivery mode.

Embodiments of the present application disclose a data processing method and device. In the method, a sending end performs first concatenation processing on multiple data to obtain first data and sends the first data when a first condition is met. The multiple data belong to one data radio bearer (DRB) of the sending end. The first condition includes one or more of the following: a timer expires, the timer is used to control the first concatenation processing, and the timer is started after a previous concatenation processing of the first concatenation processing is completed; a number of the multiple data is greater than or equal to a first threshold, and the first threshold is greater than or equal to 2; a bit size of the multiple data is greater than or equal to a second threshold, and the second threshold is greater than or equal to 2. The embodiments of the present application are beneficial to the sending end directly processing the first data when the first data is transmitted to other protocol layers, instead of respectively processing each data in the multiple data, so that the complexity of the sending end in processing data can be reduced.

A method for determining a channel access priority class (CAPC) is applied to a sidelink-unlicensed (SL-U) scenario. The method includes: determining, by a first terminal, the CAPC of a sidelink data radio bearer (SL DRB). Another method for configuring a CAPC is applied to a scenario of an unlicensed spectrum, which includes receiving, by a second terminal, the CAPC of a SL DRB configured by a first terminal via a sidelink radio resource control (SL RRC) reconfiguration message.

In accordance with some implementations, a method is provided. The method includes receiving, by a first network device of an access network, a first message from a second network device of the access network. The first message can indicate a configuration of a packet data convergence protocol (PDCP) entity in the first network device. The method further includes transmitting, by the first network device, a second message to a terminal device. The second message can indicate a configuration of a data radio bearer (DRB) corresponding to the PDCP entity.

The present disclosure provides a method and device for wireless communications, comprising receiving a first signaling and transmitting a first signal; herein, whether the first signaling is used for determining a first time window is used for determining whether the first signal is used for determining a second time window, a start time of the first time window in time domain is a first start time and an end time of the first time window in time domain is a first end time, a start time of a second time window in time domain is a second start time and an end time of the second time window in time domain is a second end time, and neither the first end time nor the second end time is equal to an infinity; a first data radio bearer group is associated with the first time window and the second time window; a first time window and a second time window are reasonably configured in the present disclosure and are associated with a Protocol Data Unit (PDU) session, increasing the flexibility of the system.

A method is provided that includes reporting to a source node a buffer status of each of one or more radio processing units (RPUs) activated for parallel processing a data radio bearer (DRB) within radio protocols of a radio protocol configuration. The method includes receiving a handover command from the source node for a handover to a target node, the handover command including a configuration for the handover, and the configuration including an indication from the target node for deactivation of at least one of the one or more RPUs. And the method includes performing the handover to the target node based on the configuration for the handover, and in which the at least one of the one or more RPUs is deactivated for the DRB based on the indication from the target node for the deactivation of the at least one of the one or more RPUs.

Various exemplary embodiments disclose a method, apparatus, and computer readable storage medium for supporting dynamic MAC multiplexing. According to an exemplary embodiment, a terminal device in a communication network is configured to receive an indication from a network device that a data radio bearer (DRB) is of a hybrid DRB type, determine whether a medium access control control element (MAC CE) is multiplexed with data in the DRB, and perform a multiplexing or de-multiplexing operation on a MAC PDU associated with the DRB in response to the MAC CE being multiplexed with the data in the DRB.