224 results about "Media access" patented technology

The invention discloses an adaptive modulation anti-multipath unmanned aerial vehicle swarm communication method and system based on MIMO-OFDM, and relates to the technical field of wireless communication, and the method comprises the steps: receiving a down-conversion baseband; synchronization and compensation are carried out; removing a cyclic prefix and carrying out fast Fourier transform; estimating a channel and noise on the training and pilot frequency, and correcting a common phase; performing frequency domain equalization and soft decision, forward error correction and cyclic redundancy check according to the estimation to obtain a control parameter, decoding a payload according to the control parameter, and performing statistics to form a link quality indication; modulating coding, bandwidth and spatial mode, configuring mapping, power and weight, and packaging physical layer protocol data; carrier sensing conflict avoiding sending, confirmation and retry are adopted to generate media access statistics; and the routing selects the next-hop multi-hop forwarding according to the transmission quality, and performs end-to-end statistics and recharge. Through cooperation of hierarchical synchronization and phase correction with cyclic prefix and FFT, crosstalk is suppressed, channel noise scale optimization soft decision is robust, data decoupling is controlled, and end-to-end availability is improved through multi-hop self-healing recharge.

The invention discloses a BMC intrusion protection method and device, a BMC and computer equipment. The method is applied to the BMC in the computer equipment. The BMC comprises a service module and a security detection module which are in communication isolation, and storage media accessed by the service module and the security detection module are isolated. The business module is used for providing a management function for parts in the computer equipment, and the security detection module is used for implementing security detection on the BMC. The method comprises the steps that the security detection module obtains data stored in the storage medium associated with the service module, analyzes the security situation of the data sensing service module, and obtains a security detection result. And when the security detection result indicates that the BMC suffers from the APT attack, restarting the BMC in a degraded starting mode. Through a deep defense scheme, namely on the basis of defense, intrusion detection capability is added to the BMC, a dynamic defense chain of defense, detection, degradation and recovery is formed, the APT attack resisting capability of the BMC is improved, and the BMC is ensured to be safe and credible.

This disclosure provides methods, components, devices and systems for coordinated time division multiple access (C-TDMA) in Wi-Fi networks for partial bandwidth transmission opportunity (TXOP) sharing. Some aspects more specifically relate to coordinating TXOP sharing in time and frequency. In some examples, a first access point (AP) obtains a TXOP associated with a bandwidth, allocates a duration of the TXOP to a second AP, and selectively communicates with one or more stations (STAs) associated with the first AP via a first portion of the bandwidth within the duration of the TXOP. In other words, the first AP may selectively communicate with one or more STAs associated with the first AP within the duration of the TXOP that the first AP shared with the second AP. Various disclosed protocols and mechanisms further relate to using resources that would otherwise be unutilized within a framework of coordinated medium access.

Disclosed are a BMC intrusion protection method and apparatus, and a BMC and a computer device. The method is applied to a BMC in a computer device. The BMC comprises a service module and a security detection module, which are in communication isolation, wherein a storage medium accessed by the service module is isolated from a storage medium accessed by the security detection module; and the service module is used for providing a management function for components in a computer device, and the security detection module is used for carrying out security detection on the BMC. The method comprises: a security detection module acquiring data stored in a storage medium associated with a service module; analyzing the data and sensing the security situation of the service module, so as to obtain a security detection result; and when the security detection result indicates that a BMC has been subjected to an APT attack, restarting the BMC in a degraded start mode. A defense-in-depth scheme is used, namely, an intrusion detection capability has been added to a BMC on the basis of defense, so that a dynamic defense chain of defense, detection, degradation and recovery is formed, thereby enhancing the capability of the BMC to resist APT attacks and ensuring the security and trustworthiness of the BMC.

Multi-Access Point, MAP, coordination is used to control secondary channel access of other BSSs when sharing a TXOP. A sharing AP transmits a MAP MU-RTS trigger frame reserving a TXOP and allocating the primary channel to its BSS and secondary channels to shared BSSs. The frame triggers a switching, at the shared AP and stations of the shared BSSs, from a primary channel access (PCA) scheme to a non-primary channel access scheme where medium access in the shared BSS is performed on the allocated secondary channel. The shared AP, once switched, transmits a CTS frame over the secondary channel and another CTS frame, repeating the allocation scheme, over the primary channel. Each shared BSS operates on its allocated secondary channel during the shared TXOP, independently to each other and to the sharing BSS operating on the primary channel. The stations switch back to the PCA scheme upon the TXOP ending.

A method includes: receiving, at a first layer of a protocol stack, multiple code blocks from a base station, the multiple code blocks is a portion of a transport block and is associated with an error rate; transmitting, to a second layer of the protocol stack, the multiple code blocks; and determining, at the second layer and based on the error rate, whether to (1) store the multiple code blocks in memory or (2) process the multiple code blocks. A method for saving power in a physical (PHY) layer-to-medium access (MAC) layer interface and a network device, and a system are also provided.

A method includes transmitting, by an anchor wireless device, a beacon frame signal to client wireless devices, which are ambient power (AMP) devices. The beacon frame signal advertises at least a first service period during which at least a subset of the client wireless devices are to transmit. The method includes transmitting, by the anchor wireless device, during the first service period, a first wireless signal including a data packet with a command frame to activate the subset of the client wireless devices into a transmission mode. The method includes receiving, from the subset of the client wireless devices in response to detecting the command frame, second wireless signals each including a response data packet. The second wireless signals are received according to a pre-programmed schedule that deconflict transmissions by the subset of the client wireless devices.

Providing media power telemetry for virtual machines (VMs) in processor-based devices is disclosed herein. In one exemplary embodiment, a processor-based device provides a controller circuit comprising a power telemetry circuit, and a power management processor. The power telemetry circuit is configured to determine whether a media access request corresponding to a power telemetry event and directed to a media device is detected, and determine whether the media access request matches an event selection filter specified by an event selection control and status register (CSR) corresponding to the power telemetry event. If so, the power telemetry circuit increments a power telemetry counter corresponding to the power telemetry event by a relative power value associated with a media access request type of the media access request. The power management processor determines a power management operation based on the power telemetry counter corresponding to the power telemetry event, and applies the power management operation.

Systems and methods for managing access to media content involve generating a media container for object-based media access by: generating data streams on a basis of objects of interest in a multimedia file such that each data stream is a segment of the multimedia file that corresponds to a representation of a respective object of interest; generating an encryption key of each data stream, each encryption key corresponding to a respective data stream; encrypting the data streams with the corresponding encryption key; generating an identifier for each encryption key; and generating a media container file by packaging the data streams and the encryption key identifiers.

A system for providing a permissioned encrypted and redundant media access file distribution system. The system manages, by a first node, the digital content and metadata associated with the digital content, where the digital content is decentralized. The system further enables, by a second node, access to the digital content by an authorized user, where the authorized user purchased the digital content. The system further manages, by a third node, cryptographic keys that are used to encrypt and decrypt digital content, where the first node secures the digital content for access by the authorized user by receiving and disseminating chunks of the associated files.

This disclosure provides methods, components, devices and systems for coordinated medium access period management for overlapping basic service sets (OBSSs). Some aspects more specifically relate to coordinated medium access between access points (APs) and stations (STAs) of an OBSS. In some examples, a first STA may monitor, over one or more medium access periods, for communications between a neighbor AP and one or more second STAs. The one or more medium access periods may be configured for medium access and resource reservation for communications between the neighbor AP and the one or more second STAs. In some examples, the first STA may transmit to an associated AP, a report indicating the one or more attributes associated with the monitoring over the one or more medium access periods. In some examples, the report may be solicited or unsolicited, and the STA may monitor for communications over one or more measurement windows.

A transactional method and system of incentivizing task performance using token-based exchange for digital media access. The system and method are configured to reward a person with electronic tokens for tasks that are performed and verified by the system. These tokens can then be exchanged by the user for access to desired digital media. Verification can involve the use of natural language processing and image comparison algorithms to determine whether a particular task has been successfully completed.

Various embodiments relate to an access point (AP) configured to support a high priority (HP) service, including: a transceiver configured to: announce first enhanced distributed channel access (EDCA) parameters for a first device associated with the AP, wherein the first EDCA parameters support the HP service; announce second EDCA parameters for a second device associated with the AP that does not support the HP service; receive a HP priority access request frame from the first device configured to request HP services; determine that the second device supports the HP service through negotiation; and transmit an HP priority access response frame to the first device enabling HP traffic transmission by the first device.

A wireless communication method and device are provided. The method includes: indicating, by an access point device, that at least one station device changes media access address (MAC) address information and identifier information of the at least one station device. Therefore, the station device and the access point device can use a MAC address and identifier information changed simultaneously to perform frame interaction, which is beneficial to reduce a problem of user privacy leakage.

Multi-Access Point, MAP, coordination is used to control secondary channel access of other basic service sets (BSS) when sharing a TXOP. A sharing AP transmits a MAP MU-RTS trigger frame reserving a TXOP and allocating the primary channel to its BSS and secondary channels to shared BSSs. The frame triggers a switching, at the shared AP and stations (STA) of the shared BSSs, from a primary channel access (PCA) scheme to a non-primary channel access scheme where medium access in the shared BSS is performed on the allocated secondary channel. The shared AP, once switched, transmits a clear-to-send (CTS) frame over the secondary channel and another CTS frame, repeating the allocation scheme, over the primary channel. Each shared BSS operates on its allocated secondary channel during the shared TXOP, independently to each other and to the sharing BSS operating on the primary channel. The stations switch back to the PCA scheme upon the TXOP ending. At a STA of a second BSS receive from a first AP managing a first BSS a control frame. In response to the control frame, switch from a PCA scheme to a non-primary channel access scheme.

A disclosed example apparatus includes at least one memory, instructions in the apparatus, and processor circuitry to execute the instructions to store a logged media impression for a media identifier representative of media accessed via the Internet, cause transmission of a device identifier or a user identifier to a database proprietor when a user has not elected to not participate in third-party tracking corresponding to online activities, access user information from the database proprietor based on the device identifier or the user identifier, log a demographic impression based on the media impression and the user information, and generate an impression report corresponding to the media based on the demographic impression.

An incarcerated individual communications and / or media access system may include a Virtual Private Network (VPN) secured personal incarcerated individual communication and / or media device and an incarcerated individual communications and / or media cloud access platform hosted by a computing cloud. The VPN secured personal incarcerated individual communication and / or media device includes an operating system incorporating a secured VPN as a (only) channel for the personal communication and / or media device to connect to any wireless carrier and a designation of a (n) (only) wireless carrier that the VPN secured incarcerated individual personal communication and / or media device is allowed to connect with and / or communicate through. The incarcerated individual communications and / or media cloud access platform receives communications terminated by the wireless carrier from, and to, the VPN secured personal incarcerated individual communication and / or media device and processes and / or controls the communications.

An example system-on-chip (SoC) device for a communication system includes a peripheral component interconnect express (PCIe) interface configured to receive data from a backhaul field programmable gate array (FPGA) of the communication system, and a producer port linked with a consumer port through direct memory access (DMA). Data received by the PCIe interface is assigned to the producer port. The device includes dual hardware media access controls (MACs) configured to consume the data assigned to the producer port, and at least one processor configured to supply the data to a wireless interface for transmission to another wireless communication device of the communication system at a frequency of at least sixty Gigahertz.

The invention discloses a collaborative medium management method and device between medium storage devices and a medium, and relates to the technical field of artificial intelligence and financial science and technology, and the method comprises the steps: responding to the medium access operation of each medium storage device in a target area range, and generating medium state description information matched with the medium access operation in real time; when the collaborative medium management condition is met, determining a target time interval matched with the collaborative medium management condition, and obtaining state description information of each target medium generated in the target time interval; and performing iterative processing by adopting a particle optimization algorithm according to the state description information of each target medium to obtain an ideal medium storage amount of each medium storage device in each time period, and determining a medium management strategy for each target medium storage device in the target area range by combining the current system time so as to update the storage state of each medium. And the management efficiency, the optimization pertinence, the accuracy and the collaborative management precision of the medium storage equipment in the target area are improved.

A disclosed example includes accessing computer-generated impression records, the computer-generated impression records based on network communications received at a server of a database proprietor from client devices, the computer-generated impression records indicative of accesses to media at the client devices; accessing self-reported demographic data and behavioral data from a database of the database proprietor, the self-reported demographic data and the behavioral data corresponding to user accounts registered with the database proprietor and associated with the client devices; comparing the self-reported demographic data with a probability distribution of higher-accuracy demographic data; determining different adjustments for corresponding ones of self-reported demographics of the self-reported demographic data based on the comparison; adjusting the corresponding ones of the self-reported demographics based on corresponding ones of the different adjustments to generate adjusted user demographic data; and assigning the adjusted user demographic data to corresponding ones of the computer-generated impression records.

Responsive to receiving uplink traffic from a specific edge client on the edge client table, in-service monitoring for frame retries and collisions associated with the specific edge client is performed. Responsive to detecting that a rate of frame retries and collisions exceed a threshold, a BSS color change announcement frame is transmitted to the specific edge client comprising a second color. The BSS color change announcement directs the specific edge client to contend for medium access based on preambles observed from a specific overlapping BSS associated with the second BSS color rather than its home BSS. The default color can be restored after the uplink.

The present application provides a method and system for implementing 5G ultra-high-definition video ringback tone, wherein the method includes: when an initial invitation is initiated between user terminals through a voice signaling channel; the video ringback tone control system negotiates data bearer between the two user terminals according to the initial invitation; when the negotiation is successful, a target DC is established on a preset bearer; video ringback tone media is negotiated with the target terminal and a video ringback tone media playback address is sent; the target terminal initiates a media access request to the target CDN node according to the video ringback tone media playback address; the target CDN node sends the cached video ringback tone file to the target terminal according to the media access request and through the target DC. The present application transmits ringback tone data by establishing a DC on a dedicated bearer and deploying media resources through an edge CDN, thereby improving transmission speed and reducing latency, and solving the problem of being unable to provide users with ultra-high-definition video and richer real-time interactive services.

Providing media power telemetry for virtual machines (VMs) in processor-based devices is disclosed herein. In one exemplary embodiment, a processor-based device provides a controller circuit comprising a power telemetry circuit, and a power management processor. The power telemetry circuit is configured to determine whether a media access request corresponding to a power telemetry event and directed to a media device is detected, and determine whether the media access request matches an event selection filter specified by an event selection control and status register (CSR) corresponding to the power telemetry event. If so, the power telemetry circuit increments a power telemetry counter corresponding to the power telemetry event by a relative power value associated with a media access request type of the media access request. The power management processor determines a power management operation based on the power telemetry counter corresponding to the power telemetry event, and applies the power management operation.

The invention provides a log interception control method and system and a vehicle, and the control method comprises the steps: responding to an external storage medium access device, and triggering a log interception process; reading a log configuration file pre-stored in an external storage medium, and enabling the system to enter a log to-be-intercepted state capable of responding to the voice instruction based on an analysis result of the log configuration file; when the log is in a to-be-intercepted state, receiving a control instruction of a user through voice interaction; and in response to the first voice instruction representing the start of interception, executing screening and storage operations on the target log data according to a rule defined in the log configuration file, and writing the target log data into an external storage medium. The problems that an existing in-vehicle log interception scheme is complex in operation, depends on wired connection and physical keys, is inconvenient to trigger, cannot be controlled in real time and is low in log classification automation degree are solved.

Methods, apparatus, systems, and articles of manufacture to monitor media are disclosed. An example apparatus includes first means for performing a first mapping of a first media identifier and timestamp to a second media identifier in a look-up table (LUT), the first media identifier and timestamp based on media obtained from a server, the first media identifier to identify the media, means for determining a third media identifier and a second timestamp based on media monitoring information (MMI) obtained from the server, the MMI obtained from the server in response to an access of the media identified by the third media identifier by a media device, second means for performing a second mapping of the third media identifier and the second timestamp to the first media identifier and timestamp in the LUT, and means for crediting access of the media to the media device based on the second mapping.

Disclosed examples determine a unique audience exposed to media while reducing memory resources of a computing device. Example instructions program programmable circuitry to log a plurality of impressions corresponding to media accessed at client devices; generate a first value based on a count of the impressions and a count of users of a database proprietor that accessed the media; generate a second value based on the first value and a count of demographic impressions logged by the database proprietor; and determine a unique audience size based on the second value.

Multi-port Media Control Channel (MAC) with flexible data-path width. A multi-port receive (RX) MAC block includes multiple RX ports and a plurality of RX circuit blocks comprising an RX MAC pipeline for performing MAC Layer operations on RX data received at the RX ports. The RX circuit blocks are connected with variable-width datapath segments, and the RX MAC block is configured to implement a multi-port arbitration scheme such as a TDM (Time-Division Multiplexed) scheme under which RX data received at a given RX port are forwarded over the variable-width datapath segments using datapath widths associated with that RX port. A multi-port transmit (TX) MAC block implementing a TX MAC pipeline comprising TX circuit blocks connected with variable-width datapath segments is also provided. The RX and TX MAC blocks include CRC modules configured to calculate CRC values on input data received over datapaths having different widths.