2966 results about "Media access control" patented technology

Provided are a method and a device for controlling cell change. The method may includereceiving a higher layer message including one or more candidate target cell configuration information for an L1 / L2-triggered mobility (LTM) operation; transmitting an L1 measurement result for a candidate target cell on the basis of the higher layer message; receiving a medium access control control element (MAC CE) indicating performance of an LTM operation to a target cell; and performing a cell change operation without RRC reconfiguration by applying the candidate target cell configuration information for the target cell on the basis of the MAC CE.

Provided are a method and device for controlling a cell change operation of a mobile communication terminal The method may include receiving an upper layer message including one or more pieces of candidate target cell configuration information for an L1 / L2-triggered mobility (LTM) operation; receiving a medium access control control element (MAC CE) instructing the execution of the LTM operation on a target cell; and performing a detach operation from a source cell on the basis of the MAC CE, and performing the cell change operation by applying the candidate target cell configuration information for the target cell.

A method performed by a terminal in a wireless communication system is provided. The method includes receiving, from a base station, a radio resource control (RRC) message including layer 1 (L1) / layer 2 (L2) triggered mobility (LTM) configuration information, the LTM configuration information including at least one LTM candidate configuration for at least one candidate cell, transmitting, to the base station, a report for an L1 measurement on the at least one candidate cell, receiving, from the base station via a medium access control (MAC) control element (CE), an LTM cell switch command based on the report, identifying whether a value of a timing advance command (TAC) in the MAC CE is set to a specific value, and in case that the value of the TAC is not set to the specific value, processing the TAC and performing a random access channel (RACH)-less LTM cell switch for a target cell identified by the MAC CE.

A wireless device receives, from a base station, a medium access control (MAC) control element (CE) indicating a layer 1 or layer 2 triggered mobility (LTM) cell switch from a first cell to a second cell and a resource of the second cell for a transmission, by the wireless device, of a random access preamble.

An embodiment of an operating method of a first device may comprise the steps of: receiving, from a second device, a first report setting configured to perform reporting of first channel state information (CSI); receiving, from the second device, a first medium access control (MAC) control element (CE) that configures one or more multiplexing modes for the first device in at least a first time resource; generating the first CSI on the basis of the first report setting and the first MAC CE; and transmitting the first CSI to the second device, wherein the first time resource configures a first CSI reference resource, configured by the first report setting.

Proposed in the present disclosure are a method and an apparatus for providing a control plane procedure in a cell change operation for a mobile communication terminal. The present embodiments may provide an apparatus and a method by which a terminal performs a cell change operation, the method comprising the steps of: receiving a higher layer message including one or more candidate target cell configuration information for an L1 / L2-triggered mobility (LTM) operation; receiving a medium access control element (MAC CE) instructing performance of the LTM operation to a target cell; and controlling an operation of a timer included in the upper layer message.

Disclosed are systems, apparatuses, methods, and computer-readable media for use in a wireless network for facilitating radio access synchronization. The method includes receiving, from a user equipment (UE) a message having a media access control (MAC) control element (CE) format and comprising a MAC protocol data unit (PDU) structure, the message being formed by multiplexing one or more MAC service data units (SDUs). The method further includes generating a response message to the received message by multiplexing a MAC random access response (RAR) with one or more MAC SDUs. The method then transmits the response message to the UE.

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 terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control (MAC) control element (CE) for indicating activation of a plurality of transmission configuration indication (TCI) states applicable to a plurality of types of channels, and a control section that judges, based on a first field and a second field included in the MAC CE, which of a first downlink (DL) TCI state, a first uplink (UL) TCI state, a first common TCI state common to DL and UL, a second DL TCI state, a second UL TCI state, or a second common TCI state common to DL and UL one or more TCI state ID fields included in the MAC CE indicate. According to one aspect of the present disclosure, it is possible to appropriately perform TCI state indication.

Methods, systems, and apparatuses are provided for transmitting User Equipment (UE) triggered reports in a wireless communication system, comprising receiving a configuration of at least one condition to trigger a report by a UE, wherein the report is an L1 report or a Medium Access Control (MAC) Control Element (CE), receiving a downlink signal indicating at least one joint or Downlink (DL) Transmission Configuration Indicator (TCI) state, wherein the at least one joint or DL TCI state is associated with a first Reference Signal (RS), and triggering the report based on a first condition of the at least one condition being fulfilled, wherein: the first condition includes that: an L1-Reference Signal Received Power (RSRP) of one or more candidate beams is with an offset better than an L1-RSRP of a current beam, or a number of instances, that the L1-RSRP of the one or more candidate beams is with the offset better than the L1-RSRP of the current beam, exceeds or reaches a maximum number, and the UE determines the L1-RSRP of the current beam based on measurement of the first RS and determines the L1-RSRP of the one or more candidate beams based on measurement of one or more candidate RSs.

A wireless device receives one or more radio resource configuration (RRC) messages comprising one or more configuration parameters comprising a first configuration parameter and first measurement configuration parameters indicating one or more positioning measurement gaps. In response to the first configuration parameter being enabled, the wireless device determines to trigger a positioning measurement gap activation or deactivation request. Based on the one or more RRC messages comprising the first configuration parameter, the wireless device determines to trigger the positioning measurement gap activation or deactivation request using an uplink medium access control (MAC) control element (CE). The wireless device transmits the uplink MAC CE for activating or deactivating a positioning measurement gap of the one or more positioning measurement gaps.

Roaming for a non-access point (non-AP) device with a roaming access point (AP) multi-link device (MLD), wherein the roaming AP MLD includes a plurality of AP MLDs in different devices at different locations having one medium access control (MAC) service access point (SAP), including: exchanging management frames between the non-AP device and a current serving AP MLD that is one of the plurality of AP MLDs to select a future serving AP MLD that is one of the plurality of AP MLDs and to select future serving link of the future serving AP MLD; and exchanging management frames between the non-AP device and the serving AP MLD to switch from the current serving AP MLD and the future serving AP MLD.

Apparatuses, methods, and systems are disclosed for determining a resource for a channel state information report. One method (600) includes receiving (602), from a transmitter device, a channel state information reference signal within a data region and a channel state information request indicator in sidelink control information. The method (600) includes determining (604), at a receiver device, a resource for transmitting a channel state information report in response to the channel state information request indicator using a mode 1 resource allocation procedure, a mode 2 resource allocation procedure, or a combination thereof. The method (600) includes transmitting (606), from the receiver device, the channel state information report via a medium access control control element using the resource.

The invention relates to the technical field of network security, in particular to an equipment identity verification system based on an MAC (Media Access Control) address, which comprises a hardware feature acquisition module, a binding MAC address generation module, an authentication code encryption module, an authentication server communication module, an equipment behavior monitoring module and a security response module, wherein the hardware feature acquisition module is used for generating a unique equipment hardware fingerprint; the binding MAC address generation module is used for mapping the equipment hardware fingerprint into a binding MAC address uniquely corresponding to the equipment; the authentication code encryption module is used for generating an equipment authentication code; the authentication server communication module is used for sending the equipment authentication code to an authentication server for verification; and the equipment behavior monitoring module is used for identifying potential abnormal behaviors. According to the invention, through combination of hardware feature binding of the MAC address and multi-dimensional behavior monitoring, uniqueness, security and active protection capability of equipment identity verification are realized, and the security protection level of the system is significantly improved.

The invention proposes to generate a new MAC address for a non-AP station while being associated with an AP station, for use when associating again with the same AP station. For privacy reason, the same new MAC address is generated locally at both the non-AP station and the AP station using a shared function. This is done in a synchronized manned, preferably at the end of the association, e.g. when disassociating. The non-AP station disassociates with the AP station, and at any time in the future, it may associate again with the same AP station using this new MAC address. The AP station is therefore able to recognize the non-AP station, while outside observers only see a new MAC address and thus see a new non-AP station associating with the AP station. User privacy is therefore reinforced over time as the non-AP station associates multiple times to the same AP.

The present disclosure provides systems and methods for asset identification and consolidation in a network. In some implementations, the methods involve receiving data including a plurality of media access control (MAC) addresses from at least one source, analyzing the received MAC addresses to determine one or more MAC addresses that are repeated in the received data, and labeling the repeated MAC addresses as weak identifiers for asset identification. Some implementations herein enable improved accuracy in identifying and consolidating network assets by distinguishing between reliable and unreliable identifiers, thereby enhancing network security and management capabilities.

A first wireless device receives, from a second wireless device, a first medium access control (MAC) control element (CE) requesting for an inter-UE coordination between the first wireless device and the second wireless device, wherein the first MAC CE indicates a start time and an end time of a selection window for a resource selection procedure of the second wireless device to select resources for one or more sidelink transmissions by the second wireless device. The first wireless device selects a preferred resource set or a non-preferred resource set during the selection window. The first wireless device transmits, to the second wireless device, a second MAC CE indicating the preferred resource set or the non-preferred resource set for the second wireless device to select resources for the one or more sidelink transmissions. The first wireless device receives the one or more sidelink transmissions.

Methods and apparatuses for PDSCH reception in single-DCI multi-TRP scenario with unified TCI framework are disclosed. In one embodiment, a UE comprises a transceiver; and a processor coupled to the transceiver, wherein the processor is configured to receive, via the transceiver, a medium access control (MAC) control element (CE) activating at least one Transmission Configuration Indication (TCI) codepoint with two downlink (DL) or joint TCI states; receive, via the transceiver, a downlink control information (DCI) indicating one TCI codepoint being activated with two DL or joint TCI states if multiple TCI codepoints are activated with DL or joint TCI states; and determine one or two DL TCI states for reception of PDSCH scheduled by a scheduling DCI.

A method includes receiving, by a wireless device from a first, source, cell, one or more radio resource control (RRC) messages. The messages includes first parameters of a first list of transmission configuration indicator (TCI) states of a second, candidate cell and second parameters of a second list of TCI states of the candidate cell. The method includes receiving from the first, source, cell a medium access control control element (MAC CE) triggering a layer 1 and / or layer 2 triggered mobility (LTM) cell switch to the second, candidate cell. The MAC CE includes a first field indicating the cell from a plurality of LTM candidate cells and a second field indicating a first TCI state of the first list. The method includes communicating with a base station of the candidate cell, using the first TCI state indicated in the MAC CE.

A system can configure a first number of demodulation reference signal positions in radio resource control information as part of a connection setup with a base station that is configured to facilitate first broadband cellular communications. The system can, after attaching to the base station, receive a medium access control control element message from the base station indicative of modifying the first number of demodulation reference signal positions to a second number of demodulation reference signal positions. The system can conduct second broadband cellular communications with the base station according to the second number of demodulation reference signal positions, wherein a throughput of the second broadband cellular communications is determined as a function of a size of a transport block set based on the second number of demodulation reference signal positions.

A method can include transmitting, by a wireless device, capability information that includes a first parameter indicating that the wireless device supports a layer 1 and / or layer 2 triggered mobility (LTM) procedure. The capability information can also include a second parameter indicating that the wireless device supports a recovery procedure for the LTM procedure. The method can also include receiving a medium access control (MAC) control element (MAC CE) triggering, a first LTM cell switch to a first candidate cell, for a first LTM procedure. The method can further include performing, for a first recovery procedure of the first LTM procedure, a second LTM cell switch to a second candidate cell, in response to: a failure of the first LTM procedure; and a selection of the second candidate cell.

A method performed by a User Equipment (UE) for applying a Transmission Configuration Indicator (TCI) state is provided. The method receives a Radio Resource Control (RRC) configuration. The method receives a first Medium Access Control (MAC) Control Element (CE) for activating at least one TCI state configured by the RRC configuration. The method receives Downlink Control Information (DCI) for indicating a first TCI state among the at least one TCI state activated by the first MAC CE. The method receives a second MAC CE for indicating a second TCI state after receiving the DCI. The method then applies the first TCI state or the second TCI state for a target cell.

A wireless device communicates first packets with a master base station associated with a dual connectivity of the wireless device and second packets with a secondary base station associated with the dual connectivity. The wireless device receives, from the secondary base station and via a signaling radio bearer 3 (SRB3), a radio resource control (RRC) reconfiguration message indicating a layer 1 and / or layer 2 based mobility (LTM) procedure for the wireless device, wherein the RRC reconfiguration message comprises an identifier of a target cell for the LTM procedure, and configuration parameters of the target cell. The wireless device sends, to the secondary base station, one or more layer 1 measurement reports of the target cell, receives, from the secondary base station, a medium access control (MAC) control element (CE) triggering a cell change to the target cell for the LTM procedure, and sends, to the secondary base station and via the SRB3, an RRC reconfiguration complete message for the LTM procedure after receiving the MAC CE.

Provided are a method, system, and apparatus for adjusting the bitrate for video streaming may be provided. The method may include: determining whether there is network congestion for a packet based on whether a filtered cell quality indicator provided from a Media Access Control (MAC) Scheduler is lower than a cell quality indicator threshold value, based on whether a scheduling queue delay of a User Equipment (UE) is greater than a queue delay threshold value, or based on UE Assistance Information (UAI) reported by a user equipment (UE); based on a determination that there is network congestion: setting an explicit congestion notification (ECN) bit in an IP packet header and setting the congestion state of a user IP to true; sending the packet; and applying adaptive bitrate to adjust a quality of a video stream based on the congestion state

A method, network node and wireless device (WD) for medium access control (MAC) control element (CE) design for multiple power management maximum power reduction (P-MPR) reporting are disclosed. According to one aspect, a method in a network node includes receiving from the WD a power headroom report (PHR) medium access control (MAC) control element (CE) that includes power headroom information for at least one serving cell and for each of the at least one serving cell, information for a plurality of P-MPR, values and candidate beam information associated to at least one of the plurality of P-MPR values. The method also includes determining, for each of the plurality of P-MPR values, a presence of candidate beam information in the MAC CE based at least in part on a bit content in at least one associated field of the MAC CE.

Provided in the present disclosure are a method for radio link failure recovery and user equipment. In the method for radio link failure recovery, a user equipment (UE) detects that a handover failure occurs, and when the UE has a stored conditional handover (CHO) configuration, or when the UE has a stored conditional handover (CHO) configuration and CHO recovery is enabled, the UE reverts back to a configuration used in a source cell. The configuration used in the source cell includes one or more of a physical layer dedicated configuration, a medium access control (MAC) layer configuration, or a semi-persistent SPS configuration.

A relay node may detect conflicts regarding media access control (MAC) addresses. A target node may receive a request from the relay node. The request may comprise a request to establish communications with the target node. The target node may send, to the relay node, an indication of the MAC address of the target node. The target may receive a link release message from the relay node. The link release message may comprise an indication of conflict associated with the MAC address of the target node.

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 wireless device is configured to receive information from a network node. The information indicates whether or not a medium access control, MAC, service data unit, SDU, for a signaling radio bearer, SRB, or data radio bearer, DRB, is to be received by the wireless device in the same MAC protocol data unit, PDU, as a MAC PDU carrying a random access success response message. This random access success response message indicates both a random access channel and an uplink shared channel payload were decoded successfully. In some embodiments, the wireless device is configured to receive a MAC PDU carrying the random access success response message, and to process the received MAC PDU based on the received information indicating whether a MAC SDU for an SRB or DRB is included in the received MAC PDU.

Provided are a method and device for processing data. The method may include receiving higher layer signaling including packet data convergence protocol (PDCP) configuration information for configuring to perform a protocol data unit (PDU) Set-based discard operation, receiving a medium access control (MAC) control element indicating activation of a service data unit (SDU) discard operation based on PDU Set importance, and controlling a PDCP entity to start a PDU Set importance-based discard timer configured in association with the PDCP SDU when the SDU discard operation based on the PDU Set importance is activated, and a PDCP SDU belonging to the PDU Set importance of a preset criterion is received from a higher layer.