Abstract: A communications network delay variation smoothing method, an apparatus, and a system are disclosed. The method includes: clearing, by a local device, a forward delay threshold and a reverse delay threshold when an initialization time starts; and when determining that a maximum value between a real-time forward delay value corresponding to a current service flow fragment and a reverse delay threshold corresponding to the current service flow fragment is greater than a current value of the forward delay threshold, replacing the current value of the forward delay threshold with the maximum value. In this way, after the initialization ends, a delay threshold after the initialization ends is determined and is applied to delay compensation, thereby significantly reducing a bi-directional asymmetric delay variation, and avoiding a problem of abnormal user communication that is caused when the variation exceeds a limit.

Abstract: A storage system writes an object across zones of a set of zones (“zone set”). Each zone of a zone set is contributed from an independently accessible storage medium. To create a zone set, the storage system arbitrarily selects disks to contribute a zone for membership in the zone set. This results in a fairly even distribution of zone sets throughout the storage system, which increases fault tolerance of the storage system. Although disk selection for zone set membership is arbitrary, the arbitrary selection can be from a pool of disks that satisfy one or more criteria (e.g., health or activity based criteria). In addition, weights can be assigned to disks to influence the arbitrary selection. Although manipulating the arbitrary selection with weights or by reducing the pool of disks reduces the arbitrariness, this evenly distributes zone sets while accounting for client demand and/or disk health.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In an aspect, the apparatus is configured to receive at least one frame from at least one wireless device and to generate a BA frame that may include a block ACK bitmap based on the received at least one frame. The BA frame may include a fragment number field and a bitmap length indicator within the fragment number field that indicates a length of the block ACK bitmap within the BA frame. The apparatus may be configured to transmit the generated BA frame to the at least one wireless device.

Abstract: A method for commissioning a wireless lighting control system for network connectivity does not require special device network configuration steps during manufacturing. Network configuration happens dynamically and automatically during commissioning of a lighting control group. The method includes receiving at a mobile device an advertisement packet from each of a plurality of lighting control devices via a commissioning network. A commissioning network connection is established with each of the lighting control devices and the mobile device. A lighting control group network table listing an entry for each of the lighting control devices is built to establish the lighting control group that communicates over a lighting control network. The lighting control group network table is sent to a last lighting control device configured by the mobile device via the commissioning network. Receipt of the lighting control group network table readies the device to receive lighting control event messages for the group.

Abstract: According to one embodiment, the present invention relates to channel sensing in an unlicensed band in a wireless communication system, and a data transmission method based on the same, wherein the method is performed by a transmission node for transmitting data by performing the channel sensing and comprises the steps of: receiving a data transmission instruction from a control node; performing a channel sensing-related operation in at least one of channel sensing-related operation execution sections set prior to each of a plurality of transmission opportunity units allowed at the transmission node, according to the data transmission instruction; and transmitting data according to the data transmission instruction in the transmission opportunity unit corresponding to a specific channel sensing-related operation execution section, if it is determined that a channel for transmitting the data is in the unoccupied state in the specific channel sensing-related operation execution section, wherein a transmission p

Abstract: Disclosed is a method of joint optimization of channel selection and frame scheduling for coexistence of LTE and WLAN in an unlicensed band, the method being performed by a baseband unit (BBU) pool and the method includes: selecting a component carrier (CC) having a highest idle probability by considering an idle probability of the CC for the unlicensed band; determining the number NI of idle subframes in the selected CC by considering a residence time in a WLAN system queue; and allocating a resource block (RB) to an LTE user terminal in a cell based on the number of selected CCs and the number of idle subframes and which appropriately selects a resource in a frequency domain and a time domain in LTE to acquire high throughput and fairness in the LTE and the WLAN in the unlicensed band.

Abstract: A method for data communication between a first node and a second node over a data path includes forming one or more redundancy messages from data messages at the first node using an error correcting code and transmitting first messages from the first node to the second node. The first messages include the data messages and the redundancy messages. The method includes, receiving, at the first node, second messages indicative of a rate of arrival at the second node of the messages transmitted from the first node, and of successful and unsuccessful delivery of the messages transmitted from the first node to the second node. A first transmission limit and a second transmission limit are maintained according to the received second messages. Transmission of first messages from the first node to the second node is inhibited according to the maintained first transmission limit, and according to the second transmission limit.

Abstract: In one embodiment, a computing system receives sensor data from one or more sensors of a vehicle. The computing system determines a metric associated with the vehicle based on the received sensor data. The computing system determines, based on the metric, a length of a transmission cycle of a communication network of the vehicle. The transmission cycle comprises one or more scheduled time periods dedicated for transmitting data from respective first nodes in the communication network. The computing system configures the communication network of the vehicle based at least in part on the length of the transmission cycle to adjust respective occurrence frequencies of the scheduled time periods over multiple instances of the transmission cycle.

Abstract: A method for efficient data transmission in a wireless communication system includes dynamically configuring at least one period cycle (P-CYCLE) pattern comprising a period-on (P-ON) duration and a period-off (P-OFF) duration that are adjusted in accordance with a number of transmissions from user equipments (UEs) operating in a shared band spectrum, wherein the number of transmissions comprises a number of successful transmissions or a number of unsuccessful transmissions received from the UEs. The method further includes transmitting the P-CYCLE pattern including the P-ON duration and the P-OFF duration to the UEs using a downlink channel over the shared spectrum band, wherein the downlink channel comprises a higher layer signal or a physical layer signal.

Abstract: Embodiments of this disclosure provide a node diagnosis apparatus and system.

Abstract: An offloading controller for traffic offloading in a multi-radio-access-technology (RAT) network is described. The offloading controller includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to determine a channel utilization threshold based on a likelihood of packet collisions in a contention-based access network. The multi-RAT network comprises a centralized resource management network and the contention-based access network. The instructions are also executable to determine whether to offload one or more user equipments (UEs) on the contention-based access network to the centralized resource management network by comparing a current channel utilization of the contention-based access network and the channel utilization threshold.

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.

Abstract: A light source control system includes a plurality of light sources, and a plurality of light source control devices. The light source control devices include a plurality of main light source control devices that transmits command signals to the other light source control devices. Each main light source control device includes a collision determination circuit that determines whether data of the command signal transmitted through a bus has collided with other data, and a restoration circuit that executes a restoration operation in the case of a collision. The collision determination circuit includes an edge detection circuit that detects change timing of a signal representing the data of the command signal, an area setting circuit that sets a collision determination area in accordance with the detected change timing detected, and a collision detection circuit that detects the presence or absence of a collision in the set collision determination area.

Abstract: Disclosed herein is a synchronization method for transmitting a DOCSIS upstream signal, which is performed by an RoIP terminal, the synchronization method including receiving a synchronization (SYNC) message periodically sent by a Cable Modem Termination System (CMTS) and thereby synchronizing a clock and generating a reference time; receiving a ranging request signal from a Cable Modem (CM); including information about a start time of an allocated ranging interval in the ranging request signal, converting the ranging request signal into an IP packet, and transmitting the IP packet to an RoIP headend device over an IP network in order to enable the RoIP headend device to convert the ranging request signal, delivered via the IP network, into an RF signal and transmit the RF signal to the CMTS; and converting a ranging response message delivered from the CMTS into an electric signal and transmitting the electric signal to the CM.

Abstract: Multiple wireless devices in a network perform full duplex communication in which the transmission path and receiving path are spatially separated to allow simultaneous transmission and receiving. The wireless devices can either be controlled using a centralized, or point, coordination function or a distributed coordination function. A full-duplex wireless device senses the medium during transmission by itself and selectively continues the transmission when a signal is sensed on the medium. A full-duplex wireless device measures signal being transmitted by its transmitter and estimates parameters that can be used to cancel the contribution of the locally transmitted signal to the locally received signal concurrently being received during the transmission. The transmit antenna and the receive antenna of a full-duplex wireless device can be configured to be spatially isolated from each other to minimize interference between the antenna functions.

Abstract: Systems, methods, and other embodiments associated with generating wireless communication with a long guard interval followed by short guard intervals are described. According to one embodiment, a wireless communication device includes a transmitter configured to generate and transmit an orthogonal frequency-division multiplexing (OFDM) signal with (i) a preamble and (ii) a data segment following the preamble that includes a plurality of data symbols that are each respectively preceded by a guard interval. The transmitter is configured to generate (i) a first guard interval preceding a first data symbol in the data segment following the preamble as a long guard interval, and (ii) subsequent guard intervals that are subsequent to the first guard interval according to a type of guard intervals for the OFDM signal.

Abstract: The disclosure includes embodiments for improving an estimate of a geographical position of an ego vehicle using wireless vehicle data of a remote vehicle. A method according to some embodiments includes determining ego estimate data based on remote GPS data and relative position data. The remote GPS data describes a geographical location of the remote vehicle. The relative position data describes a location of the ego vehicle relative to the remote vehicle as measured by onboard sensors of the remote vehicle. The ego estimate data describes the geographical location of the ego vehicle from the perspective of the remote vehicle. The method includes fusing the ego estimate data and ego GPS data to form fused data. The ego GPS data describes the geographical location of the ego vehicle from the perspective of the ego vehicle. The fused data describes the geographical location of the ego vehicle with lane-level accuracy.

Abstract: A two-hop link transmission method and apparatus are provided. The method includes establishing a two-hop link and scheduling transmission on the two-hop link in a Device-To-Device (D2D) communication network. The two-hop link transmission method includes identifying neighbor terminals available for communication with the transmission terminal, selecting one of the neighboring terminals as a recipient terminal, determining a type of a link to be established with the selected neighboring terminal between a single-hop link and two-hop link types, selecting, when the two-hop link type is determined, a relay terminal among the neighboring terminals, establishing the two-hop link with the recipient terminal via the relay terminal, allocating a Multi-Hop Connection Identifier (MCID) for the two-hop link, and transmitting data to the recipient terminal through the two hop link.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus is configured to determine a communication deferral policy within a BSS associated with the apparatus. The apparatus is configured to receive a message from a second wireless device. The apparatus is configured to determine a message type of the message. The apparatus is configured to determine whether the message is associated with an OBSS based on the determined message type. The apparatus is configured to determine whether to defer communications based on the communication deferral policy, the message type, and whether the message is associated with the OBSS.

Abstract: An automated environment can include multiple controller devices capable of communicating with multiple accessory devices. The controller devices can automatically elect one of their number as a coordinator device for the environment and can automatically perform a new election if an incumbent coordinator becomes unavailable or resigns. The election processes can be transparent to any users. An elected coordinator can perform various operations to facilitate management of the automated environment, including routing of communications between controllers and accessories.

Abstract: A system, method and platform for multi-party characteristics and requirement matching and timing synchronization. One aspect of the invention relates to the plurality of users, such as consumer and provider, and provider's system parameters (820) or attributes (810, 820, 830, 840) that actualize the event or service. In some cases, the platform can obtain data from the user's network such personal service network (120), location provider network (110), or application device network (130) or capture user's requirements through other availability, recommend a match and allocation of the match on the provider's system parameters (820) upon confirmation from the users. It caters for time variant and estimation, compensation and adaptation of the user's characteristics with other users in the system. It minimizes loss time and maximizes utilization of the actors to the actualization of the event.

Abstract: A MAC design for Ku-band mobile wireless mesh network with multi-beam smart antennas is disclosed. This MAC includes an overlay control that separates the collision domain. It also has lower layer CSMA-like scheme. The disclosed design includes an enhanced PCF and an enhanced DCF for two purposes: (1) exploiting multi-beam concurrent communication capability (2) supporting QoS and mission-based communications. An efficient time synchronization scheme is also disclosed to ensure all beams can concurrently send data to the star node. Finally, ARMA or HMM based prediction schemes are disclosed to predict future traffic profile in each beam. This helps the star node to better prepare the queue content and schedule information.

Abstract: An electronic device that controls changing a carrier sense detection threshold or disabling transmission suppression based on a communication quality of at least one of a first frame of which an intended destination is not the electronic device and a second frame transmitted in response to the first frame in a case that the transmission suppression is initially set.

Abstract: A method for reporting load information, performed by an access point (AP), in a wireless local area network system, the method includes determining first utilization information for a first channel having a bandwidth of 40 MHz; and transmitting basic service set (BSS) load information, the BSS load information including a multi user (MU) multiple input multiple output (MIMO) capable station count field and the first utilization information, wherein the MU-MIMO capable station count field indicates a total number of stations with MU reception capability currently associated with a BSS managed by the AP, and wherein the first utilization information includes information about a time during which the first channel is busy.

Abstract: In an embodiment, a carrier signal generation circuit can be used for a Radio-frequency identification (RFID) transponder device. A frequency divider circuit has a first input to receive a first frequency signal, a second input to receive a division ratio signal, and an output to provide a carrier signal as a function of the first frequency signal and the division ratio signal. A phase difference circuit has a first input to receive an analog reader device carrier signal, a second input to receive a signal based on the first frequency signal and an output to provide a digital phase difference signal as a function of the reader device carrier signal and the signal based on the first frequency signal. A signal processor has an input coupled to the output of the phase difference circuit.

Abstract: Systems, methods, and apparatus embodiments are described herein for context information management at the medium access control layer. In one embodiment, a system comprises a plurality of peers which communicate via peer-to-peer communications. In the system, context information may be exchanged at the MAC layer. Examples of context information include, without limitation, location information, mobility information, device capability, user information, an application category, multi-hop information, a channel condition, application information, association identifiers, and device information. Each of the plurality of peers may include a context manager that resides on each peer device. For example, a first context manager that resides on a first peer of the plurality of peers may exchange context information with a second context manager that resides on a second peer of the plurality of peers.

Abstract: MU-MIMO is implemented with little changes in the mechanism of the DCF. There is provided a wireless terminal station apparatus that is used in a wireless communication system formed of one wireless base station apparatus and a plurality of wireless terminal station apparatus, in which grouping is performed on the wireless terminal station apparatus in such a way that the wireless terminal station apparatus belongs to any one of a plurality of groups, and the wireless terminal station apparatus includes a backoff controlling portion that performs control such that a backoff value at the time of random backoff, the backoff value of the wireless terminal station apparatus belonging to at least one group, is selected from a set of candidates for a backoff value which is a set of values formed of predetermined limited numbers.

Abstract: Embodiments of the present invention provide a data transmission method, a sender device, and a receiver device. The method includes: sending, by a sender device, to-be-transmitted data to a receiver device according to a transmission policy; and receiving, by the sender device, feedback information sent by the receiver device. In this process, for to-be-transmitted data after a guard interval in a last radio frame of any scheduling window, the sender device sends the to-be-transmitted data according to the transmission policy, so that no timeout occurs when the sender device is waiting for the feedback information, thereby achieving an objective of improving data transmission efficiency.

Abstract: A system having one or more different asymmetric data decompression algorithms and a processor. A first asymmetric data decompression routine is configured to produce decompressed data with a higher data rate for a given data throughput than a second asymmetric data decompression routine of the plurality of different asymmetric data decompression routines. The processor is configured to analyze one or more data parameters from one or more data blocks containing video data and to select two or more different data decompression routines.

Abstract: A network for facilitating wireless radio communication. The network includes a first access area, wherein the access area includes one or more transmission/receive points. At least one transmission/receive point includes a base station that supports wireless communication between a network and user equipment (UE), such as, a mobile device. The network includes a dedicated connection signature (DCS) that is assigned to a UE. The DCS provides for and is used by the UE to maintain active, unified access to the wireless network. More particularly, the DCS provides for active, contention free, and fast access for the UE to the network through transmission/receive points within the first access area, which is of significance to present and future UE centric virtual radio access networks having high densities of mobile and non-mobile users and with high populations of different types of traffic patterns and applications.

Abstract: A communication method for electronic devices includes: determining whether a transmission line is occupied or unoccupied; based on a determination that the transmission line is unoccupied: transmitting transmission data via the transmission line; receiving return data that returns via the transmission line after the transmission data has been transmitted; and determining whether data collision exists on the transmission line by comparing the transmission data with the return data, and based on a determination that the transmission line is occupied: waiting for a predetermined first time interval to elapse; and after the predetermined first time interval has elapsed, returning to the determining whether the transmission line is occupied or unoccupied.

Abstract: The present invention provides methods and apparatus for gathering location information of a vehicular user equipment (VUE). In one aspect of the present invention, a method for gathering location information in a wireless access system supporting vehicle to everything (V2X) service, the method performed by a vehicular user equipment (VUE) and comprising steps of receiving a Tracking Service Request message including a V2X tracking service indication field indicating tracking service is triggered or not and an identifier of the VUE; and transmitting a Tracking Service Response message including location information of the VUE in response to the Tracking Service Request message, wherein the location information includes a location information field indicating a location coordinate of the VUE, a time field indicating current time and time zone information corresponding to the location information field, and a fuel level field indicating fuel level of the VUE.

Abstract: A client and content provider are connected by a plurality of simultaneous transport connections. The number of the transport connections that are used to transfer data is selected based on the size of the data to be transferred and may change after transfer of data has commenced based on the amount of data left and the attributes of the transport connections. In another aspect, data to be transmitted over the transport connections is organized into frames such that each frame includes data from only one data stream. The frames are sized to be less than or equal to a control window of the transport connection over which they are transmitted. Each frame may be assigned to a transport connection in a round robin fashion or based on the size of the frame and the sizes of the control windows of the transport connections.

Abstract: The present invention discloses a method for changing an association ID in a wireless communication system and an apparatus therefor. Specifically, a method for changing an association identification (AID) of a first station (STA) communicating directly with a second STA in a wireless communication system comprises the steps of: receiving, from an access point (AP), a reassignment response frame containing new AID information to be newly allocated to the first STA; the first STA transmitting an update request frame containing the new AID information to the second STA; and as a response to the update request frame, receiving an update response frame from the second STA.

Abstract: In embodiments, one or more wireless stations operate to configure direct communication with neighboring mobile stations, i.e., direct communication between the wireless stations without utilizing an intermediate access point. Embodiments of the disclosure relate a mechanism for coexistence of various radio access technologies during peer-to-peer communications. In some embodiments, a first communication may be scheduled in one or more time slots with a peer station according to a first radio access technology (RAT), an end time of the first communication during a first time slot of the one or more time slots may be determined, and a second communication according to a second RAT may be transmitted. At least a portion of the second communication may be performed during the first time slot. In some embodiments, the first and second communications may be transmitted on the same channel.

Abstract: An electrical interface module (IM) has a memory device MEM) for storing data and an integrated interface (IO) that provides data to an external reading device (RW). The electrical interface module (IM) contains a carrier (2) on which the memory device (MEM) and the integrated interface (IO) are arranged, the electrical interface module (IM) can exchange data and/or power with other electrical interface modules (IM) in the vicinity via the integrated interface, and adjacent electrical interface modules (IM) form a logical data bus via the integrated NFC interfaces, which can be addressed and/or controlled by at least one head module or a master module with a higher control and/or monitoring device.

Abstract: In wireless communication networks with distributed medium access control, maximal network throughput is achieved as a compromise between medium contention duration and collision rate. Maximal throughput in self-adapting medium access protocol is achieved by stations maintaining backoff counter BC and freezing counter FC, which define the state in two-dimensional state space. Countdown process is comprised of decrementing BC in idle timeslots, and incrementing FC in busy timeslots. Countdown ends if the value of BC reaches zero, when the station starts to transmit data, or when FC is incremented to be greater than freezing limit FL. In both cases, the station has to randomly select new backoff counter, reset its freezing counter, and continue to count down with these new values of BC and FC.

Abstract: A method is implemented by a subscriber unit in a wireless communication for establishing a network session. The subscriber unit encodes an acknowledgment message for transmission on a shared reverse link channel to a base station. Acknowledgment information associated with a received session tag at the subscriber unit to the base station is transmitted over the shared reverse link channel, on a condition that the session tag is received from a network server via the base station on a forward link channel and identified by the subscriber unit. The acknowledgment is transmitted on a reverse traffic channel on a condition that the session ID tag is not identified by the subscriber unit.

Abstract: This invention proposes efficient data transmission methods in the mobile cellular network. A specific resource pool is divided into several resource groups to indicate the size level of the data available for transmission. The base station allocates a proper UL grant to the terminal. Based on the allocated UL grant, the terminal compares the granted Transport Block (TB) size with the size of data available for transmission. If the UL grant is large enough, the terminal transmits the data available for transmission in the allocated UL resource, otherwise, re-attempts the random access procedure. In another example, the terminal transmits a BSR message and as much of the data as is available for transmission. The base station may grant additional UL resources if there is remaining data to be transmitted. A timer is used for the terminal to decide whether waiting for the additional UL grant from the base station.

Abstract: A system includes a wireless transceiver and a processor. The processor is programmed to generate an alert message indicative of a roadway obstacle according to sensor data, send the alert message over vehicle-to-vehicle direct communications via the wireless transceiver, and send the alert message to a cellular tower via the wireless transceiver for local cellular broadcast responsive to topology data generated from the sensor data indicating line-of-sight communication is compromised.

Abstract: A mobile device may retrieve service information about a network prior to associating with the network. Utilizing an advertisement protocol to transmit service query messages, a mobile device may receive service query responses from a network that identify the services available prior to establishing network capability. In other words, the messaging is prior to the exchange of any authentication parameters between the device and the network as well prior to the establishment of a recognized session between the device and the network.

Abstract: A method for generating a distributed channel hopping system in cognitive radio networks. The method includes: 1) providing a symmetric asynchronous CH system comprising n periodic CH sequences such that each period of a CH sequence comprises exactly L frames and each frame comprises n timeslots; 2) labelling the n periodic CH sequences in the constructed CH system; 3) hopping, by the CH sequence i, to the channel (lM+j mod N) in each timeslot tt,j,d?Ui,j of the frame l; and 4) hopping, by the CH sequence i, to an arbitrary channel h? {0, 1, . . . , N?1} in each timeslot t?Zn\ROT(U, i) of the frame l.

Abstract: This disclosure describes methods, apparatuses, and systems related to network allocation vectors. A device is disclosed that may determine a first length of time corresponding to a first spatial reuse transmit opportunity (SR-TxOP) time period. The device may determine a second length of time corresponding to a transmit opportunity (TxOP) time period that starts when a request to send (RTS) frame is transmitted and ends after the first length of time ends. The device may cause to transmit the RTS frame, over the channel, to a first device. The device may determine that a clear to send (CTS) frame is received from the first device, the CTS frame comprising a first duration field equal to having a third length of time corresponding to a second transmission opportunity (SR-TxOP). The device may determine that the third length of time corresponds to a length of time between when the CTS frame was transmitted and when the first length of time ends.

Abstract: A driver assistance apparatus is provided. The driver assistance apparatus includes a processor determining whether lanes are not identified based on at least one of image information, distance information, sensor information, navigation information, secondary information and adjacent vehicle information, and generating virtual lanes; and an output unit outputting the generated virtual lanes.

Abstract: Apparatus, method and article of manufacture providing a randomized encoding scheme for sequential logics, for resistance to data leakage. Invention employs dual-rail encoding to randomize the information in the chip, and employs three-dimensional integration technology to protect the critical information that is needed to decode the data anywhere on-chip. With the present invention, even when the entire design is completely known to the attacker who also has full access to the outsourced portion, it is still not always possible to identify the information in the chip using data leakage Trojans.

Abstract: Systems, methods, and devices for wireless communication are disclosed. In some aspects, a method includes receiving from a transmitting device, via a receiving device, a first wireless frame, the first wireless frame forming at least a portion of a wireless communication exchange between the transmitting device and the receiving device, transmitting to the transmitting device, in response to the first wireless frame, a second wireless frame indicating that the receiving device will enable protection for a remaining portion of the wireless communication exchange, transmitting during a contention period, in response to the indication, a frame reserving the wireless medium for a time period; and receiving, via the receiving device, the remaining portion of the wireless communication exchange from the transmitting device during the time period.

Abstract: The present invention relates to a wireless communication system. More specifically, disclosed are an operation method and apparatus using a sectorized transmission opportunity in a wireless LAN system. The method by which a station (STA) performs a transmission opportunity-based (TXOP-based) sectorization operation in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: determining whether an ongoing frame exchange is transmitted within a basic service set (BSS) of the STA or within an overlapping BSS (OBSS); determining whether spatially orthogonal (SO) conditions are met; and resetting a virtual carrier sensing (VCS) value of the STA, if the ongoing frame exchange is transmitted within the OBSS and the SO conditions are met.

Abstract: A light source control system includes a plurality of light sources, and a plurality of light source control devices. The light source control devices include a plurality of main light source control devices that transmits command signals to the other light source control devices. Each main light source control device includes a collision determination circuit that determines whether data of the command signal transmitted through a bus has collided with other data, and a restoration circuit that executes a restoration operation in the case of a collision. The collision determination circuit includes an edge detection circuit that detects change timing of a signal representing the data of the command signal, an area setting circuit that sets a collision determination area in accordance with the detected change timing detected, and a collision detection circuit that detects the presence or absence of a collision in the set collision determination area.

Abstract: A method of channel access for a radio device in an asynchronous channel hopping wireless network. A backoff time is set from an Interference Avoidance Delay plus a random backoff time for transmissions from the radio device. For initial frame transmissions, an initial value for a number of backoffs (nb) and initial number of preamble detection backoffs (npdb) is set. After waiting for expiring of the initial backoff time and provided a current npdb_value <a predetermined maximum npdb value, a first CCA is performed on the radio device's receive (Rx) channel, and a value for npdb is incremented following a failure. A second CCA is performed on a target radio device's Rx channel, wherein a value for nb is incremented following a failure. Provided a not busy is determined in the second CCA the radio device transmits a frame on the target radio device's Rx channel.

Abstract: Representative implementations of devices and techniques provide communication between networked nodes while minimizing interference from neighbor network communication. Medium Access Control (MAC) cycles at the nodes may be aligned to MAC cycles of neighbor nodes and/or networks based on decoded timing information detected by the nodes.