176 results about "Data radio bearer" patented technology

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a terminal in a wireless communication system is provided. The method includes identifying whether a packet data convergence protocol (PDCP) entity is suspended in case that the PDCP entity re-establishment is requested from an upper layer, identifying whether an indicator is configured for indicating that an uplink data compression (UDC) is continuously used and a PDCP service data unit (SDU) is compressed, for an acknowledged mode (AM) data radio bearer (DRB) whose the PDCP entity is not suspended, and submitting the PDCP SDU, in case that the indicator is configured for indicating that the UDC is continuously used and the PDCP SDU is compressed.

Embodiments of the present application provide a small data transmission method and apparatus, and a terminal device. The method comprises: the terminal device determines a first data amount, which comprises a data amount of radio resource control (RRC) messages and a data amount of at least one data radio bearing (DRB) cache; and the terminal device determines, based on the first data amount, whether to initiate an inactive state small data transmission.

Embodiments of the subject application relate to methods and apparatuses for enhancements of a data discarding operation. 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 whether to start a timer associated with at least one of an uplink (UL) data discarding function or a configured grant (CG) prohibiting function or a scheduling request (SR) prohibiting function of the UE; to start the timer, in response to determining to start the timer; and to perform at least one of: discarding UL data for a data radio bearer (DRB) to be transmitted when the timer is running; prohibiting a transmission on a logical channel (LCH) associated with one or more sets of CGs or associated with one or more sets of SR resources configured for the UE when the timer is running; or prohibiting a trigger of a SR for the LCH associated with the one or more sets of CGs or associated with the one or more sets of SR resources when the timer is running.

Multi-hop configurations in Integrated Access and Backhaul (IAB) networks are provided for reduced latency. For example, modifications to a backhaul adaptation protocol (BAP) header supports faster data radio bearer (DRB) transmissions. Or, for both signaling radio bearer (SRB) and DRB flows, configuration forwarding may be used to reduce configuration latency wherein a single RRCReconfiguration message is forwarded to intermediate nodes that process the configuration and respond back independently. Alternatively, for both SRB and DRB flows, configuration multi-casting may be used for simultaneous IAB node and backup configurations. Methods are provided for fast activation of backup links in IAB nodes.

Systems, methods, and instrumentalities are described herein related to data treatment in the protocol stack. An example device may include a processor configured to perform one or more actions. For example, a device (e.g., a wireless transmit / receive unit (WTRU)) may (e.g., be configured to) receive first transmission configuration information indicating a first transmission configuration. The first transmission configuration may indicate a first mapping condition and / or a first mapping between a quality-of-service (QoS) flow and a first data radio bearer (DRB). The device may receive second transmission configuration information indicating a second transmission configuration. The second transmission configuration may indicate a second mapping condition and / or a second mapping between the QoS flow and a second DRB. The device may determine that a condition is satisfied. The device may select a transmission configuration from the first and / or second transmission configuration based on the determination that the condition.

There is provided a method in a user equipment of a wireless communication network. The method comprises transmitting, via a first data radio bearer, Protocol Data Units (PDUs) of a first PDU set using a first quality of service (QoS) mapping rule. The method further comprises: receiving downlink packets for the data radio bearer containing header information including at least one QoS parameter indicating a second QoS mapping rule; applying the first QoS mapping rule to uplink transmissions on said data radio bearer until the transmission of the last PDU of the first PDU set; and transmitting PDUs of a second PDU set using the second QoS mapping rule.

The present application relates to methods and apparatuses for simultaneous transmission on multiple paths. One embodiment of the present disclosure provides a relay user equipment (UE), which includes: a transceiver: and a processor coupled with the transceiver and configured to: receive configuration information associated with a data radio bearer (DRB) of a remote UE; and receive, from at least one of a base station (BS) or from the remote UE, a first indication indicating activation or deactivation of a simultaneous transmission on multiple paths of the DRB of the remote UE, wherein the multiple paths include at least a direct path and an indirect path.

Apparatuses, methods, and systems are disclosed for increasing the transmission reliability for transmissions of a duplication bearer in a shared or unlicensed spectrum. A UE apparatus for a mobile network (“NW”) includes a transceiver that initiates a listen before talk procedure (“LBT”) on shared spectrum, for transmission of a medium access control (“MAC”) protocol data unit (“PDU”) containing an original packet data convergence protocol (“PDCP”) PDU of a data radio bearer (“DRB”) configured for PDCP duplication, wherein PDCP duplication is deactivated for the DRB. The apparatus includes a processor that determines whether the LBT failed or succeeded and selectively enables PDCP duplication for the DRB in response to determining that the PDCP PDU was not transmitted due to failure of the LBT.

A unit equipment (UE) configured to establish a protocol data unit (PDU) session including one or more quality of service (QoS) flows and multiple data radio bearers (DRB) for communications with a network, decode, from signals received from the network, or determine an initial mapping table for a QoS flow to DRB mapping based on a network configuration of mapping parameters, decode, from signals received from the network, or determine information regarding current or upcoming traffic on the one or more QoS flows or one or more DRBs, and configure transceiver circuitry to transmit an indication to the network based on the information regarding current or upcoming traffic on the one or more QoS flows or one or more DRBs.

The invention refers to a method being performed by a wireless device, UE, to forward data of an application patent unit, PDU, the application PDU being generated by an application in the UE, wherein this wherein the UE performs the steps of: segmenting (100) the application PDU into a plurality of data packets, determining (101) one or a plurality of Quality-of-Service, QoS, parameters associated to the application PDU, determining (102) that different data packets need a different forwarding treatment to comply with the one or the plurality of QoS parameters, and mapping (103) the different data packets to different data radio bearers, DRBs, or providing a different treatment for forwarding in one DRB; the invention further refers to corresponding methods in a code network and in a radio access, RAN node; the invention further relates to a corresponding UE, a core network node and a RAN node.

A WTRU operating in an inactive state may be associated with a first cell. The WTRU may be configured to receive configuration information for a time period associated with small data transmission failure detection and a search space associated with small data transmission. The WTRU may be configured to send a first small data transmission and start the time period. The WTRU may be configured to monitor for a downlink transmission in the search space during the time period. If a condition for cell reselection is satisfied during the time period or the restarted time period, the WTRU may be configured to suspend a data radio bearer (DRB) associated with small data transmission, select a second cell, perform a random access procedure associated with the second cell, and send a small data transmission. The random access procedure may include sending a request to resume a radio resource control (RRC) connection.

This disclosure relates to techniques for changing protocol data unit (PDU) set processing behavior upon activation or deactivation of PDU set importance (PSI)-based discarding mechanism, particularly where an indication to activate / deactivate the PSI-based discarding mechanism is received when a PDU set has been partially processed. In some scenarios, the PSI-based discarding mechanism may be applied to the remainder of the PDUs in the partially processed PDU set. In other scenarios, the PSI-based discarding mechanism may not be applied until the next PDU set. In some scenarios, the decision of whether to apply the PSI-based discarding mechanism to the remainder of the PDUs in the partially processed PDU set may be based on additional conditions, e.g., involving the processing progress of the PDU set, the importance of the PDU set, other configuration details of the data radio bearer (DRB), buffer size, etc.

There is provided a method performed by a user equipment, the method comprising: receiving, from a network node, information for establishing a first data radio bearer, DRB, and a second DRB, wherein

Provide are a small data transmission method and apparatus, and a terminal device. The method includes: the terminal device determines a first data amount, which includes a data amount of radio resource control (RRC) messages and a data amount of at least one data radio bearing (DRB) cache; and the terminal device determines, based on the first data amount, whether to initiate an inactive state small data transmission.

A user equipment (UE) configured to establish a protocol data unit (PDU) session including one or more quality of service (QoS) flows and multiple data radio bearers (DRB) for communications with a network, decode, from signaling received from the network, or determine an initial mapping table for a Qos flow to DRB mapping based on a network configuration of mapping parameters, determine a first QoS flow to map or remap to a new or different DRB and configure transceiver circuitry to transmit a request to the network for the first Qos flow to be mapped or remapped to the new or different DRB.

Provided are a transmission control method, device, terminal and access network device, the method being applied to the terminal, the method comprising: receiving configuration information sent by the access network device, the configuration information being used for configuring at least two sets of transmission parameters of a quality of service (QoS) flow and / or a data radio bearer (DRB); and according to the configuration information, selecting a transmission parameter required by QoS to perform uplink transmission.

A method for wireless communication at a user equipment (UE) and related apparatus are provided. In the method, the UE determines a discard configuration for a discard process based on protocol data unit (PDU) set importance (PSI) associated with a set of data radio bearers (DRBs). The discard configuration includes a discard timer and discard information for each DRB in the set of DRBs. The UE further transmits, for a network entity, one or more data packets over the set of DRBs based on the discard configuration.

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.

According to an implementation mode, a communication device receives a packet data convergence protocol (PDCP) protocol data unit (PDU) on a data radio bearer (DRB) configured for the communication device, and the PDCP protocol data unit (PDU) is configured on the data radio bearer (DRB) configured for the communication device. The PDCP PDU comprises an indication of a transmission mode, the transmission mode is used for transmitting a PDCP SDU (Service Data Unit) received on the DRB to an upper layer associated with the communication equipment, and the indication of the transmission mode indicates in-order transmission (IOD) or out-of-order transmission (OOD). The communication device processes the PDCP PDU to generate a PDCP SDU and a COUNT value associated with the PDCP SDU. And the communication equipment transmits the PDCP SDU to the upper layer according to the indication of the transmission mode.

Embodiments of the present application relate to a method and apparatus for multicast and broadcast services (MBS). An exemplary method includes: transmitting configuration information indicating a multicast data radio bearer (M-DRB) and a dedicated radio bearer (RB) both associated with a radio link control (RLC) entity; transmitting a set of RLC data packets to one or more user equipment (UEs) via the M-DRB in a point to multipoint (PTM) mode; and receiving feedback information for the set of RLC data packets via the dedicated RB of a UE of the one or more UEs. Embodiments of the present application can support feedback information and retransmission for a specific LIE in the PTM mode.

A user equipment (UE) is configured to: decode, from signaling received from a base station, an uplink (UL) grant comprising an indication of uplink (UL) radio resources and a modality group; generating a data unit based on data from a plurality of traffic flows corresponding to the modality group, wherein the IP flow includes one of a quality of service (QoS) flow, a logical channel (LCH), or a data radio bearer (DRB); and configuring the transceiver circuitry to transmit the data unit using the UL radio resource.

A method performed by a Distributed Unit (DU) (e.g., included in a 5G or 6G communication system) may include receiving a control message from a Radio Access Network (RAN) Intelligent Controller (RIC), wherein the control message includes control information for controlling Data Radio Bearer (DRB) allocation in each network slice, identifying, from a request message for setting one or more DRBs of a terminal, Single Network Slice Selection Assistance Information (S-NSSAI) of the one or more DRBs, and setting the number of DRBs allocatable in a network slice corresponding to the S-NSSAI, based on the control information.

This disclosure provides systems, methods and apparatuses for using a media access control (MAC) control element (CE) for dynamic RLC entities selection. In one aspect, a base station (BS) may generate and transmit the control message to a user equipment (UE) to identify active radio link control (RLC) entities, a primary RLC entity, or other parameters relating to packet data convergence protocol (PDCP) duplication-based communication. In this case, the UE may use the control message to select an RLC entity and may transmit protocol data units (PDUs) to the BS using a data radio bearer (DRB) and the selected RLC entity.

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 wireless transmit / receive unit (WTRU) and method are disclosed for transmitting uplink protocol data units (PDUs) associated with quality of service (QoS) flows having different priority levels on a per-PDU basis. The WTRU receives a WTRU packet data unit (PDU) set detection rule from a network entity, such as a session management function (SMF). The WTRU receives PDUs associated with quality of service (QoS) flows for uplink transmission from a higher layer. The WTRU determines a priority level for the received PDUs, regardless of their associated QoS, based on the WTRU PDU set detection rule, and determines a data radio bearer (DRB) or logical channel on which to transmit the PDUs based on the determined priority level. Additional embodiments are disclosed.

Embodiments of the present application disclose a data processing method and device, a communication device and a storage medium. The information processing method applied to a first UE can comprise: determining a second UE according to a logical channel priority of a logical channel corresponding to a sidelink data radio bearer (SL-DRB) and / or a sidelink signaling radio bearer (SL-SRB) of to-be-sent data; and determining a medium access control (MAC) protocol data unit (PDU) for sending to the second UE, wherein the MAC PDU comprises to-be-sent data in one or more SL-RBs determined according to a logical channel priority of a logical channel corresponding to an SL-RB of the second UE, wherein the SL-RB of the second UE comprises an SL-DRB of the second UE and / or a signaling radio bearer (SL-SRB) of the second UE.

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a first UE may receive system information from a network node, the system information including mapping information including a first mapping between at least one quality of service (QoS) profile and at least one sidelink configuration, the at least one sidelink configuration including a first sidelink data radio bearer (SL DRB) configuration. A first UE may transmit a sidelink communication to a second UE according to a first per-hop sidelink configuration via a first sidelink channel associated with a first hop of a UE-to-UE relay architecture, the UE-to-UE relay architecture including the first hop from the first UE to the second UE and a second hop from the second UE to a third UE, wherein the first per-hop sidelink configuration is based on the mapping information and the first per-hop QoS configuration file. Numerous other aspects are described.

The invention provides a method executed by user equipment (UE) and the UE. The method executed by the UE comprises the following steps: a PDCP entity receives a request for reconstructing a packet data convergence protocol PDCP from an upper layer; and if the PDCP entity receiving the request is a transmit PDCP entity, transmitting the request to the PDCP entity, the UE determines whether a radio bearer (RB) to which the PDCP entity belongs is a multi-mode data radio bearer (DRB) or a multi-mode radio bearer associated with at least one radio link control (UM) RLC entity in an unacknowledged mode, or a multi-mode radio bearer associated with at least one acknowledgement mode radio link control (AM) RLC entity, the multi-mode DRB being a DRB associated with at least one UM RLC entity and at least one AM RLC entity.

Systems and methods for artificial intelligence / machine learning (AI / ML) based quality-of-service (QoS) flow mapping are discussed herein. For example, a user equipment (UE) may generate, using an internet protocol (IP) flow mapping AI / ML model, a mapping of IP flows to QoS flows. Then, the UE may communicate, with a base station, data of the IP flows using the QoS flows. In some cases, the IP flows may be first correlated with other IP flows before being mapped to QoS flows. Additionally, the UE may generate, using a QoS flow mapping AI / ML model at the UE, a mapping of QoS flows to data radio bearers (DRBs). In some cases, the QoS flows may be first correlated before being mapped to DRBs. Further, the UE may generate, using an IP flow mapping AI / ML model, a mapping of IP flows to DRBs, or a predicted mapping of IP flows to future DRBs.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. Disclosed is a method performed by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a base station, configuration information for establishing a radio link control (RLS) bearer for first and second data sets; identifying the first and second data sets included in a single data radio bearer (DRB); allocating the first and second data sets to multiple RLC bearers on the basis of the configuration information; and transmitting the first and second data sets through the multiple RLC bearers.