1464 results about "Media access control" patented technology

A wireless device receives, from a base station, a radio resource control (RRC) reconfiguration message comprising a layer 1 / layer 2 triggered mobility (LTM) configuration. The LTM configuration comprises an LTM candidate configuration of a candidate cell and a value of a time alignment timer for determining whether a timing advance (TA) value of the candidate cell is valid. The wireless device receives, from the base station, a downlink control information (DCI) indicating the candidate cell and to transmit a random access preamble for acquiring the TA value of the candidate cell. Based on the DCI, the wireless device transmits, via the candidate cell, the random access preamble for acquiring the TA value of the candidate cell. The wireless device receives, from the base station, a medium access control (MAC) control element (CE) indicating an identifier of the LTM candidate configuration of the candidate cell and the TA value.

A wireless transmit / receive unit (WTRU) may receive a radio resource control (RRC) message comprising configuration information. The configuration information may include one or more preconfigured candidate cell configurations. Each of the preconfigured candidate cell configurations may include a special cell (SpCell) configuration, a secondary cell (SCell) configurations, and / or a candidate cell index. The WTRU may receive a medium access control (MAC) control element (CE). The MAC CE may indicate to apply a first preconfigured candidate cell configuration of the one or more preconfigured candidate cell configurations and an activation state for each SCell in the first preconfigured candidate cell configuration. The WTRU may initiate a handover to a SpCell in the first preconfigured candidate cell configuration based on the indication in the MAC CE. The WTRU may transmit data to the SCells activated by the MAC CE.

A method may include a wireless device receiving resource control (RRC) messages comprising configuration parameters of a layer 1 / layer 2 triggered mobility (LTM) and a configured grant Type 1 for one or more physical uplink shared channel (PUSCH) transmissions of a random access channel (RACH)-less LTM cell switch. The method may also include receiving a medium access control (MAC) control element (CE) triggering an LTM cell switch procedure for the RACH-less LTM cell switch. The method may also include determining not to initiate a random access (RA) procedure based on the RACH-less LTM cell switch being ongoing. The method may also include, based on the RACH-less LTM cell switch being ongoing, not initiating the RA procedure. The method may also include transmitting, using the configured grant Type 1 and for the RACH-less LTM cell switch, a first PUSCH transmission of the one or more PUSCH transmissions.

A wireless device receives a configuration parameter indicating whether the wireless device is allowed to use a first buffer size table, of a plurality of buffer size tables, for a first logical channel group (LCG) of a plurality of LCGs. The wireless device determines a second buffer status report (BSR) medium access control (MAC) control element (CE) with a second variable size, among a plurality of BSR MAC CES including a first BSR MAC CE, with a first variable size, and the second BSR MAC CE. Determining the second BSR MAC CE is based on: the configuration parameter; and an amount of data, of the first LCG, available for transmission, being greater than a buffer size threshold. The wireless device transmits the second BSR MAC CE based on determining the second BSR MAC CE.

A method and apparatus for XR services is provided. The method for supporting XR services includes receiving from a base station a RRCReconfiguration message that comprises a parameter for delay status report and transmitting to the base station a Medium Access Control (MAC) Control Element (CE) for delay status report in case that a specific condition is fulfilled for the specific LCG. The MAC CE comprises a bitmap related to a plurality of LCGs and delay status for the specific LCG. The delay status comprises a first set of delay status fields and a second set of delay status fields. The first set of delay status fields comprises a buffer size field indicating amount of a first set of data units. The second set of delay status fields comprises the buffer size field indicating amount of a second set of data units.

Apparatuses and methods for transmission and reception between a reader and an Internet of Things (IoT) device. A method includes receiving a physical reader-to-device channel (PRDCH) from the reader. The PRDCH includes a medium access control (MAC) header and a payload. The MAC header indicates (i) a type of reader-to-device (R2D) message and (ii) information related to determining a size of the payload. The MAC header and the payload are jointly attached with a single set of cyclic redundancy check (CRC) bits. The method further includes determining, based on reception of the PRDCH, a transmission of a physical device-to-reader channel (PDRCH) to the reader including determining a type of device-to-reader (D2R) message, a size of a payload of the D2R message, a length of the PDRCH transmission, and a transmission timing of the PDRCH. The method further includes transmitting the PDRCH to the reader.

Disclosed are a method and an apparatus for service fast switchover. The present disclosure may be applied in a spine-leaf architecture, wherein the method may be applied to a backbone spine node. The backbone spine node may loop back a data packet sent through a port connected to a faulty member path from Equal Cost Multi Paths (ECMPs) to which the faulty member path belongs, select one fast switchover member path from the ECMPs prior to routes in a network with the ECMPs converging, determine an access node connected to the fast switchover member path as a next hop, perform layer 3 forwarding on the data packet and encapsulate a specified Media Access Control, MAC, address as a destination MAC address, and send the data packet, with the specified MAC address as the destination MAC address, to the next hop through the fast switchover member path.

The invention discloses a rail transit multi-network integration method based on a digital trunking technology, relates to the technical field of communication, and aims to solve the problem that a traditional narrowband trunking system cannot meet the requirements of voice and data comprehensive bearing and vehicle-ground large-bandwidth service real-time transmission. The method comprises the following steps: constructing a time division duplex long-term evolution broadband digital trunking unified bearing platform; an intermediate media access control layer fusion architecture is deployed, and seamless mobility management of the heterogeneous network is realized through unified authentication and multi-link aggregation; an intelligent vertical switching algorithm based on prediction and multi-criterion decision is introduced, a bidirectional long-short-term memory network model is utilized to predict a network state trend, and an improved entropy weight method and an analytic hierarchy process are combined to dynamically select an optimal access network according to service requirements. According to the invention, the network operation efficiency and the user experience can be obviously improved, and high reliability and high service quality of the rail transit communication system are ensured.

A method can include receiving, by a wireless device, configuration parameters of a secondary cell (SCell) comprising a first channel state information (CSI) report configuration associated with one or more first CSI resources comprising one or more on-demand synchronization signal blocks (SSBs) of on-demand SSBs of the SCell. The method can also include receiving a medium access control (MAC) control element (CE) indicating transmissions of the on-demand SSBs of the SCell. The method can further include transmitting, based on the MAC CE indicating the transmissions of the on-demand SSBs, a first CSI report for the SCell according to the first CSI report configuration.

In a wireless local area network (WLAN) system, a transmission STA can transmit a PPDU via a 320 MHz channel, and a Medium Access Control (MAC) signal may be generated for the PPDU. The MAC signal may include puncturing pattern information and channel center frequency segment (CCFS) information for a 320 MHz band. The CCFS information may include a first CCFS field related to channel center frequency (CCF) information of a primary 160 MHz channel, and a second CCFS field related to CCF information of a 320 MHz channel.

A method by which a first device performs wireless communication, and a device for supporting same are provided. The method may comprise the steps of: acquiring a configuration related to inter-UE coordination (IUC) information reporting; initiating an IUC report timer on the basis that the IUC information reporting is triggered; performing listen before talk (LBT); and stopping the IUC report timer on the basis of (i) the generation of an IUC information medium access control (MAC) control element (CE), and on the basis of (ii) the success of the LBT.

A wireless device receives a radio resource control (RRC) message indicating a first cell-specific scheduling offset. The wireless device receives, via a first cell of a non-terrestrial network (NTN), a medium access control (MAC) control element (CE) indicating a differential offset. The wireless device transmits, via the first cell, a first uplink signal using the differential offset and the first cell-specific scheduling offset. The wireless device receives an RRC reconfiguration message comprising reconfiguration with synchronization configuration parameters. The RRC reconfiguration message may include a second cell-specific scheduling offset. Based on the RRC reconfiguration message, the wireless device discards or deletes the differential offset. The wireless device transmits, via a second cell, a second uplink signal using the second cell-specific scheduling offset.

A method for operating a user equipment (UE) comprises receiving configuration information including a list of component carriers (CCs) and at least K transmission configuration indicator (TCI) states, where K>1 and each TCI state includes a TCI state identifier (ID) and a quasi co-location information (QCL-Info). The method further includes receiving an activation command via medium access control-control element (MAC-CE) to activate N TCI state IDs from K TCI state IDs, wherein N<K and the activation command is common across the list of CCs, determining a TCI state Ti for a CC i in the list of CCs based on the activated N TCI state IDs, and transmitting an uplink (UL) transmission or receiving a downlink (DL) transmission for the CC i based on a QCL-Info included in the determined TCI state Ti.

Disclosed is a method comprising detecting a beam failure on at least one transmission reception point of a plurality of transmission reception points. One or more beam failure indication data is included into a first medium access control (MAC) control element (CE), wherein the one or more beam failure indication data indicates the beam failure detected on the at least one transmission reception point. The one or more beam failure indication data comprises at least a first bit that comprises a first value and a second value, wherein the first value of the first bit indicates a first transmission reception point at least on which the beam failure is detected. The first MAC CE comprising the one or more beam failure indication data is transmitted to an access point.

Methods and apparatuses for fast beam indication. A method of operating a UE includes receiving a number (M) of transmission configuration indicator (TCI)state code points activated by a medium access control element (MAC CE) and, if the UE is configured to be indicated TCI state code points on DL control information (DCI) and M>1, receiving the DCI that indicates at least one TCI state code point from the M TCI state code points and determining a TCI state to apply to at least one of downlink (DL) channels and uplink (UL) channels. The method further includes updating one or more spatial filters for at least one of the DL channels and the UL channels based on the determined TCI state and at least one of receiving and transmitting the DL channels and the UL channels, respectively, based on the updated one or more spatial filters.

A method performed by a mobile device, the method comprising: receiving, from a reader device via a Medium Access Control (MAC) layer, a first message for scheduling a transmission from the mobile device to the reader device; transmitting, to the reader device via the MAC layer, a second message including a part of uplink data in a buffer and first information indicating that the mobile device has remaining of the uplink data transmitted via the MAC layer, based on the first message; receiving, from the reader device via the MAC layer, a further first message for scheduling the transmission of the remaining of the uplink data in the buffer via the MAC layer, upon transmitting the first information; and transmitting, to the reader device via the MAC layer, a further second message including at least a part of the remaining of the uplink data.

A wireless device transmits, for a random access procedure, a physical uplink shared channel (PUSCH) transmission based on a first spatial filter. The wireless device receives a medium access control control element (MAC CE) indicating activation of more than one TCI state of a plurality of TCI states. The wireless device transmits one or more first uplink signals before applying a TCI state, from the more than one TCI state, indicated by a downlink control information (DCI), using the first spatial filter used and a first transmission power determined based on a synchronization signal block (SSB). The wireless device transmits, after applying the TCI state, one or more second uplink signals using: a second spatial filter determined based on a reference signal indicated by the TCI state and a second transmission power determined based on power control parameters associated with the TCI state.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a medium access control control element (MAC CE) that includes one or more reports that each indicate one or more cross-link interference or self-interference values. The UE may transmit the MAC CE. Numerous other aspects are described.

A device may determine conditional availability of data for transmission. A device (e.g., in medium access control (MAC), radio link control (RLC), and / or packet data convergence protocol (PDCP) may determine a second amount of data is available for conditional transmission (e.g., for a scheduling request (SR), buffer status report (BSR), and / or multiplexing in a transport block (TB)) as a function of, e.g., the transmission status of a first amount of data multiplexed in a TB, available for transmission, discarded, and / or transmitted. In examples, a device may receive an indication of first data, receive an indication of second data, determine that a dependency exists between the first and second data, determine the second data is unavailable for transmission, determine condition(s), determine an amount of the second data is available for transmission based on satisfaction of the condition(s), and perform transmission processing or transmission of the amount of the second data.

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.

This disclosure provides systems, methods, and apparatuses for wireless communication performed by a wireless communication device. An example wireless communication device includes an access point (AP) multi-link device (MLD). The AP MLD transmits a beacon frame to a wireless station (STA) MLD, the beacon frame including a plurality of AP medium access control (MAC) addresses of respective APs belonging to the AP MLD. The AP MLD receives an association request from the STA MLD, the association request including a plurality of STA MAC addresses of respective STAs belonging to the STA MLD. The AP MLD generates, during a handshake operation with the STA MLD, one or more encryption keys configured to encrypt communications between the AP MLD and the STA MLD. The AP MLD verifies the plurality of STA MAC addresses based at least in part on the one or more encryption keys.

Systems, methods, and instrumentalities are disclosed herein for an uplink enhancement procedure. A device, such as a wireless transmit / receive unit (WTRU) may receive configuration information from a network. The configuration information may indicate a condition to trigger an uplink enhancement. In some examples, the uplink enhancement may be associated with a radio link control (RLC) enhancement. In some examples, the uplink enhancement may be associated with (e.g., may be further associated with) a medium access control (MAC) enhancement. The device may receive a data set associated with an uplink transmission. The device may determine whether to perform the uplink enhancement based on the configuration information. Based on a determination to perform the uplink enhancement, the device may perform the uplink transmission using the uplink enhancement.

The embodiment of the invention relates to a mode switching module and a mode switching control method. The module comprises a media access control (MAC) module and a mode switching module, the MAC module is connected with the mode switching module; the output end of the mode switching module is connected with external equipment, and the input end is connected with the output end of the first power supply; wherein the mode switching module comprises a first optical fiber unit, a second optical fiber unit, a four-way optical unit and a micro-control MCU unit; a four-way optical unit in the mode switching module is used for analyzing whether received optical information is received by a first optical fiber unit or a second optical fiber unit, then the working mode of the module is determined, then an optical signal is fed back to the MAC module through the MCU unit, and switching operation is executed through software, hardware or a self-adaptive mode; therefore, a switching strategy of different modes can be realized, and the technical effects of saving cost, reducing manual operation, reducing switching complexity and meeting diversified requirements of users are achieved.

The embodiment of the invention relates to a mode switching module and a mode switching control method. The module comprises a media access control (MAC) module and a mode switching module, the MAC module is connected with the mode switching module; the output end of the mode switching module is connected with external equipment, and the input end is connected with the output end of the first power supply; wherein the mode switching module comprises a first optical fiber unit, a second optical fiber unit, a four-way optical unit and a micro-control MCU unit; a four-way optical unit in the mode switching module is used for analyzing whether received optical information is received by a first optical fiber unit or a second optical fiber unit, then the working mode of the module is determined, then an optical signal is fed back to the MAC module through the MCU unit, and switching operation is executed through software, hardware or a self-adaptive mode; therefore, a switching strategy of different modes can be realized, and the technical effects of saving cost, reducing manual operation, reducing switching complexity and meeting diversified requirements of users are achieved.

Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to configuration of downlink and / or uplink quality of service (QoS) based radio link monitoring and prediction and related signaling and procedures. In some aspects, a network node may configure a user equipment (UE) with set(s) of physical (PHY) and / or medium access control (MAC) parameters for QoS radio link monitoring and reporting. Once configured with the parameter sets, the UE may receive a signal from the network node to use a particular set, or may autonomously select a set using traffic requirements. The network node may schedule the UE to send a QoS report in accordance with one or more downlink or uplink measurement and / or prediction results. For example, when the monitored results exceed one or more configured threshold(s), the UE may transmit a report to the network node.

A terminal according to one aspect of the present disclosure comprises: a transmission unit that transmits at least one of a first Medium Access Control Control Element (MAC CE) for measurement reporting based on an event or configuration information, and a second MAC CE that is transmitted when a cell switch based on an execution condition is performed; and a control unit that determines the priority of logical channels according to a priority order among a plurality of MAC CEs. A specific priority order is defined or configured among the plurality of MAC CEs, which include at least one of the first MAC CE and the second MAC CE and another MAC CE.

The invention relates to the technical field of servers, in particular to a matching management method and device for device identifiers, and the method comprises the steps: constructing a target dynamic mapping table, and obtaining a target access peripheral device based on a media access control address of the target access peripheral device and topological information of a peripheral component interconnection bus; registering a context association relationship corresponding to the target access peripheral equipment in the target dynamic mapping table, and acquiring an actual equipment identifier of the target access peripheral equipment after the target access peripheral equipment is initialized; and determining a mapping relationship between the temporary device identifier and the actual device identifier according to the attribute information, and updating a context association relationship corresponding to the target access peripheral device by using the mapping relationship. Therefore, the problems of EID mapping failure, poor compatibility and high maintenance cost caused by equipment replacement or restart in a traditional BMC static management mode are solved, and the automation degree, reliability and cross-manufacturer compatibility of peripheral equipment management are remarkably improved through dynamic sensing and an intelligent mapping mechanism.

Apparatuses, systems, and methods for configuring different base station sleep modes / states, including triggering UE adaptation to the different base station sleep mode / states, e.g., in 5G NR systems and beyond. A UE may receive, from a base station, configurations for one or more base station sleep modes, e.g., on a per logical channel (LCH) basis, a per medium access control (MAC) entity configuration basis, a per configured grant (CG) configuration basis, and / or a per downlink (DL) semi-persistent scheduling (SPS) configuration basis. The UE determine, based on the one or more base station sleep modes, a base station sleep mode and determine an uplink transmission adaptation based on the determine base station sleep mode.

A communication method includes a first entity of a terminal apparatus that indicates N data volumes to a first medium access control MAC entity of the terminal apparatus, where N is greater than or equal to 2. The terminal apparatus determines a first buffer status report BSR based on the N data volumes. The first entity of the terminal apparatus indicates a plurality of data volumes to the MAC entity, to cause indication of the data volume to match reporting of the BSR, so that a network apparatus can more clearly learn of a buffer status of the terminal apparatus, and the network apparatus can appropriately allocate a resource.

A method, an apparatus, a terminal, and a medium for processing a sidelink consistent listen before talk failure, are provided. The method for processing a sidelink consistent listen before talk (LBT) failure includes: determining, by a terminal, that the sidelink consistent LBT failure is triggered on a first resource; and performing, by the terminal, a first operation, where the first operation includes at least one of the following: resource selection or resource reselection or resource switching; determining that the first resource is recovered from the sidelink consistent LBT failure, or canceling the sidelink consistent LBT failure triggered on the first resource; and a Media Access Control (MAC) layer of the terminal informs a PHYsical (PHY) layer: the first resource is recovered from the sidelink consistent LBT failure, or canceling the sidelink consistent LBT failure triggered on the first resource.