15 results about "MAC service data unit" patented technology

A Multi-Link Device, MLD, (110) with a plurality of affiliated stations, i.e. access points, APs, or non-AP stations, (113a-c) for Non Co-Located Multi-Link Operation communication via a plurality of links (130a-c) with a further peer MLD (120) with a plurality of further affiliated stations (123a-c) is disclosed. The MLD (110) comprises processing circuitry (111) configured to assign a global packet number, PN, but no sequence number, SN, to a MAC Service Data Unit, MSDU, payload, wherein the MSDU payload comprises a MSDU, an aggregate MSDU, A-MSDU, or a MAC Management Protocol Data Unit, MMPDU, irrespective of whether the MSDU payload is further cryptographically encapsulated or not. The processing circuitry (111) may be further configured to cryptographically encapsulate the MSDU payload.

A WLAN station (110; 120) for communicating with a further WLAN station (120; 110) is disclosed. The WLAN station (110; 120) is configured to encrypt a MAC Service Data Unit, MSDU, payload, wherein the MSDU payload comprises a MSDU, an aggregate MSDU, A-MSDU, or a MAC Management Protocol Data Unit, MMPDU, wherein the MSDU, the A-MSDU, or the MMPDU comprises one or more source address values, SAs, and one or more destination address values, DAs. Moreover, the WLAN station (110; 120) is configured to generate a MAC Protocol Data Unit, MPDU, or an aggregate MPDU, A-MPDU, based on the encrypted MSDU payload, and to transmit the MPDU or A-MPDU to the further WLAN station (120; 110).

Embodiments are disclosed for address changing schemes for a multi-link device in a wireless communications system. Some embodiments include a privacy enhanced (PE) access point (AP) multi-link device (MLD) that includes one or more affiliated APs operating on different links. The PE AP MLD can generate a first randomized OTA MLD address based at least on the MLD address of the PE AP MLD for a first affiliated PE AP (PE AP1). The PE AP MLD can transmit a first data transmission using the first OTA MLD address where the first data transmission includes an encrypted aggregated MAC service data unit (A-MSDU) subframe that includes the MLD address. The PE AP MLD can correlate the MLD address of the PE AP MPL with multiple addresses comprising: the first OTA MLD, a unique MLD address, and a Media Access Control (MAC) service access point (SAP) MLD address.

A base station device including: a transmitter configured to transmit, for each logical channel, first data of a first type and second data of a second type; and processor circuitry configured to: omit information about a data length of the second data in a MAC protocol data unit (PDU), place a medium access control (MAC) header in front of a MAC service data unit (MSDU) of the second data, and multiplex the first data and the second data, wherein the data length of the second data is omitted from the MAC header and an R bit (reserved bit) is set in the first bit of the first octet in the MAC header.

The application provides a communication method and device, and relates to the technical field of communication. In the method, an automatic repeat request mechanism is realized by a medium access control (MAC) entity, that is, a transmission status report of a MAC service data unit (SDU) is generated by the MAC entity of a data receiving end and is fed back to a data sending end, so that the data sending end realizes data retransmission according to the status report, thereby reducing the transmission delay of the status report and improving transmission efficiency.

Embodiments are disclosed for encrypting media access control (MAC) Header fields for Wireless LAN (WLAN) privacy enhancement. For example, a transceiver of a station (STA) or an access point (AP) can set a real time Media Access Control (MAC) header bit in a payload of an aggregated MAC Protocol Data Unit (A-MPDU) subframe to an actual value of a power management (PM) field of a MAC header of the A-MPDU subframe. The transceiver can encrypt the payload, set the PM field to an over the air (OTA) PM value, and transmit the A-MPDU subframe over the air. The OTA PM value can include all zeros, a predetermined value, or a randomized value The transceiver can also set static MAC header bits in the payload of the A-MPDU subframe to corresponding actual values of an aggregated MAC service data unit (A-MSDU) present field of the A-MPDU subframe.

This communication method, which is executed by a user device in a mobile communication system that supports L1 / L2 Triggered Mobility (LTM), comprises: evaluating whether an L1 measurement result obtained by means of a radio quality measurement in layer 1 (L1) satisfies an L1 event condition; upon evaluating that the L1 measurement result satisfies the L1 event condition, generating an L1 measurement report MAC CE, which is a medium access control control element (MAC CE) including the L1 measurement result, and to which a logical channel identifier (LCID) is assigned; and multiplexing, in a MAC layer, a MAC service data unit (SDU) and the MAC CE into a MAC protocol data unit (PDU) in accordance with the priority of the corresponding logical channel. The user device applies a predetermined fixed priority or a priority designated from a network node as the priority for the L1 measurement report MAC CE.

A method for redundant transmission on a first link and a second link includes receiving a first MAC service data unit (MSDU) via a service access point (SAP) on an upper MAC sublayer of a first multi-link device; forwarding the first copy of the first MSDU to a first station STA on a lower MAC sublayer of the first multi-link device; and forwarding a second copy of the first MSDU to a second site on a lower MAC sublayer of the first multi-link device; creating, by the first site, a first header of a first MAC protocol data unit (MPDU) having a MAC address of the first site, the first MPDU comprising a first copy; and creating, by the second site, a second header of a second MPDU having the MAC address of the second site, the second MPDU including the second copy.

The present disclosure relates to a method of performing an operation for a user equipment (UE) in a wireless communication system. Specifically, the method comprises the steps of: starting a data burst period; receiving an uplink (UL) grant; generating a medium access control (MAC) protocol data unit (PDU) including at least one media access control (MAC) service data unit (SDU) based on the uplink grant, where the MAC PDU includes zero buffer size (BS) information and information indicating that a data burst period is ongoing based on the absence of the SDU to be transmitted and based on the data burst period being considered ongoing; and transmitting the MAC PDU on the UL grant.

A WLAN station (110; 120) for communicating with a further WLAN station (120; 110) is disclosed. The WLAN station (110; 120) is configured to encrypt a MAC Service Data Unit, MSDU, payload, wherein the MSDU payload comprises a MSDU, an aggregate MSDU, A-MSDU, or a MAC Management Protocol Data Unit, MMPDU, wherein the MSDU, the A-MSDU, or the MMPDU comprises one or more source address values, SAs, and one or more destination address values, DAs. Moreover, the WLAN station (110; 120) is configured to generate a MAC Protocol Data Unit, MPDU, or an aggregate MPDU, A-MPDU, based on the encrypted MSDU payload, and to transmit the MPDU or A-MPDU to the further WLAN station (120; 110).

The application discloses a data transmission method and device, a sending end device, a receiving end device and a storage medium. The method comprises the following steps: a sending end device is used to form a media access control (MAC) protocol data unit (PDU); when the MAC PDU is formed, a MAC sub-PDU containing a MAC service data unit (SDU) is formed according to the transmission priority of the MAC SDU; and the MAC PDU is transmitted.

A first node transmits a first physical-layer signaling and a first Medium Access Control (MAC) Protocol Data Unit (PDU) via an air interface. The first MAC PDU comprises a first MAC header and a first MAC Service Data Unit (SDU). The first node monitors a first Hybrid Automatic Repeat reQuest Acknowledgment (HARQ-ACK) on each channel in a first channel set, and the first HARQ-ACK indicates whether the first MAC PDU is correctly decoded. The first physical-layer signaling comprises scheduling information of the first MAC PDU. The first channel set comprises Q channel(s), Q being a non-negative integer. The condition of whether a number of continuous HARQ DTXs reaches a first threshold is used to determine Q. The first MAC SDU is transmitted through a first radio bearer, and the first radio bearer is unrelated to whether the number of the continuous HARQ DTXs reaches the first threshold.

A system and method for forward detection of wireless capabilities of wireless devices is disclosed. Capability related information may include various information, ranging from supported IEEE 802.11 MAC layer or PHY layer features, such as, but not limited to, 802.11 n, 802.11 ac, 802.11 ax capability, supported number of spatial streams, support for Multi-User MIMO (MU-MIMO). Aggregated MAC Service Data Unit (AMSDU) capability. Aggregated MAC Protocol Data Unit (AMPDU) capability. Beamforming capabilities, to supported features of the 802.11 protocol, such as, but not limited to, fast link initialization, fast BSS transition, to Wi-Fi Alliance features such as, but not limited to, Agile Multiband™, WiFi Simple Config™, and Optimized Connection Experience™.

The specification discloses an uplink resynchronization method and device. The uplink resynchronization method comprises: when it is determined that a transport block size (TBS) meets a preset condition, obtaining a trigger cause of a current to-be-executed uplink resynchronization; carrying the trigger cause in a MAC PDU and sending the MAC PDU to a base station device; wherein the MAC PDU comprises a plurality of fields organized in sequence; the plurality of fields comprise a UE access Control MAC CE field, a MAC CE field and a MAC service data unit (SDU) field, the MAC CE field is before the MAC SDU field, and the UE access Control MAC CE field is before the MAC SDU field; the UE access Control MAC CE field carries the trigger cause and is used for indicating the trigger cause to the base station device. The scheme realizes the reporting of the trigger cause in the uplink resynchronization process, and effectively meets the communication requirement.