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.

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 system and method dynamically schedule wireless transmissions without collision. A master transmitter periodically transmits a time mark during a first predefined time slot of a plurality of consecutive time slots that form a transmission block. Multiple consecutive transmission blocks form a frame. An announcement transmission from a wireless transmitting device is received via at least one receiver during a second predefined time slot of the plurality of time slots. An allocator allocates, at least partly based upon the received announcement transmission, a third time slot of the plurality of time slots to the wireless transmitting device. A time slot reservation area of at least one subsequently transmitted time mark includes indication of the allocation of the third time slot to the wireless transmitting device. The wireless transmitting device receives the subsequently transmitted time mark and transmits only during the third time slot of subsequent frames.

Abstract: The present invention relates to a detection area setting method for detecting passing vehicles, and a traffic signal control method using the same and, more particularly, to a detection area setting method for detecting passing vehicles, and a traffic signal control method using the same, the detection area setting method being capable of enabling smooth traffic operation at a crossroad, for example preventing a spillback phenomenon, minimizing green time (green light display time) during which there are no passing vehicles, and extending the green time, if needed, by setting one or a plurality of detection areas at a crossroad so as to detect the traffic volume in respective moving directions of vehicles at a signalized intersection, determining the traffic state in the moving directions of the vehicles according to vehicle information in respective detection areas, and automatically controlling the crossroad signals accordingly.

Abstract: Mechanisms for clear channel assessment associated with a communication channel in a wireless environment are provided. Implementation of the mechanisms provides fairness in the utilization of wireless communication resources among contemporaneous communication devices and legacy communication devices. The communication channel can be embodied in a primary channel or a secondary channel according to communication protocols within the IEEE 802.11 family of protocols.

Abstract: Certain aspects of the present disclosure generally relate to apparatus and methods for managing acknowledgement messages from multiple destinations for multi-user multiple-input multiple-output (MU-MIMO) transmissions. According to certain aspects, a polled block acknowledgement (BA) mechanism can be considered mandatory to an acknowledgement protocol, and a sequential (or other type of scheduled/deterministic) mechanism can be considered optional.

Abstract: An Ethernet adapter module for interfacing a network endpoint device to an Ethernet network is disclosed. The Ethernet adapter module includes an Ethernet medium access controller (MAC) and an Ethernet physical layer device (PHY). The Ethernet MAC includes a processor and audio video bridging (AVB) state machines that cooperate with the processor to (1) identify an AVB request from the network endpoint device, and (2) discover a network topology along which to transfer data between the network endpoint device and a second network endpoint device in accordance with a predetermined Quality of Service (QoS). The Ethernet PHY is coupled to the Ethernet MAC and includes timestamp logic to apply a timing reference to the data being transferred.

Abstract: The disclosed embodiments provide a system that enables service-configurable wireless connections. During operation, a local service endpoint of a service runs on a wireless device. The local service endpoint sends a request to establish a datapath with another service endpoint on another device. Meanwhile, the wireless device's service discovery module discovers a remote endpoint for the service on a remote device. In response to the request, the wireless device's service-configurable security entity configures a Wi-Fi connection's security configuration, thereby enabling the local endpoint to establish a datapath between the local endpoint and the remote endpoint over the Wi-Fi connection.

Abstract: Methods, systems and devices are provided for receiving, at a receiver device, a data block or file containing a plurality of application symbols, determining the number of application symbols received in the block, generating a metric based on the number of application symbols received in the block, and transmitting the metric to a server. The metric may further be generated based on a number of application symbols that were required to recover the block or file. The server may use the metric received from one or more receiver devices to adjust the transmission settings for additional data transmissions.

Abstract: A network node (310) comprising a radio frequency communications interface (230) and a controller (210), said network node (310) being configured to service at least one first radio frequency communication device (320) being configured for both network communication and for device-to-device communication with a second radio frequency communication device (325), wherein said controller (210) is configured to determine if a restriction of a scheduling policy is necessary for said first radio frequency communication device (320), select a scheduling policy accordingly. The controller is further configured to allocate communication resources according to said selected scheduling policy to said first radio frequency communication device (320).

Abstract: Methods, systems, and devices are described for power management in wireless devices. Power saving for a device of a wireless network may be improved by appropriately setting an inactivity timeout (ITO), and thus the amount of time, after a last transmission or reception of data traffic, that the device remains in an awake mode listening for more data traffic before the device enters a sleep mode. Distributed coordinated function (DCF) information may be used for determining the ITO. For example, the DCF information may be used to determine a channel congestion metric, which may be used to set the ITO for the device.

Abstract: A message is received via a time-synchronized communication channel implemented on a radio link of a cellular network from a terminal. The message includes data associated with the service implemented by the terminal and a node of the cellular network. The message has been transmitted by the terminal at a first point in time. A timeout point in time of communication associated with the service is determined based on the first point in time.

Abstract: Methods, systems, and devices are described for a wireless positioning framework in which an access point (AP) broadcasts a message within a beacon interval that identifies a transmission schedule for a set of stations. The message may include an information element identifying the stations in the set. The set may be determined based on station clock drifts and/or a ranging accuracy sought by the AP. The AP may also provide a station identifier, and frame spacing and delay parameters, which may be used to determine a distinct backoff for each station. Using distinct backoffs allow the stations to avoid collisions when sending the transmissions. The AP may receive the transmissions according to the identified schedule and may determine a range (e.g., round-trip time) for each station in the set based at least on a time at which the respective transmission is received.

Abstract: A method and apparatus for managing a media access control address are provided. The method comprises assigning a priority to the MAC address. The method also comprises managing the MAC address in a forwarding database based on the priority. With the method and apparatus, a MAC flooding attack can be efficiently avoided and communication performance would be improved in a secure manner.

Abstract: A processor is described, including a fetch circuit to fetch an instruction, including a first source operand identifier, a second source operand identifier, and a destination operand identifier, a decode circuit to decode the instruction, a data retrieval circuit to retrieve data associated with the first source operand identifier and the second source operand identifier, and an execution circuit. In some embodiments, the execution circuit is configured to determine whether a first element of the data associated with the first source operand identifier is set, if the first element is set, to retrieve a destination index from a corresponding second element of the data associated with the second source operand identifier, and to use the destination index to select and set a destination element of data associated with the destination operand identifier.

Abstract: A method for reading a serial data stream in a piece of automation technology equipment includes encoding the data stream to include at least two symbols which are distinguishable by a time interval between two successive signal edges. The data stream is delivered to a read unit including a symbol recognition unit which associates a time sequence of the signal edges with a respective one of the symbols taking into account a period of time including a current symbol duration of one of the symbols to be currently associated and at least one old symbol duration of a preceding one of the symbols.

Abstract: Embodiments of the present application provide a channel access method and an access point. The method includes: sending, by a first AP in a first system, a sense time identifier used to identify a sense time reserved on a channel to a first STA in the first system, so as to instruct the first STA to neither send information nor perform random access within the sense time; searching the channel within the sense time for a sequence that is used for random access and that is in a second system, so as to obtain a search result, and determining, according to the search result, whether the channel is obtained by means of competition; The technical solution of the present application provides a new channel access mechanism, which can implement coexistence of a next-generation WiFi system with a traditional WiFi system.

Abstract: Operations include estimating a channel utilization, for a target wireless device, corresponding to a set of wireless signals that are received and/or transmitted by another wireless device. One or more relationships between detected signal strength values, measured channel utilization values, and/or actual channel utilization values are determined. The estimation is made based on applying detected signal strength values received at other wireless devices, measured channel utilization values at other wireless devices, and/or actual channel utilization values at other wireless devices to the relationships.

Abstract: According to some embodiments, a method of estimating a relayed wireless signal in a multihop network comprises receiving, at a destination network node, a wireless signal relayed from a plurality of network nodes. The received wireless signal comprises successive quantizations of a source wireless signal performed at each relay stage. The destination network node also receives a plurality of messages, each including quantization information associated with the quantization performed at a corresponding relay stage. The destination network node estimates a wireless signal received at a previous relay stage using a quantized multiple-input multiple-output (MIMO) channel model with the received wireless signal and a message corresponding to the quantization performed at the previous relay stage.

Abstract: Provided are a method and system for a wireless STA to access a channel. The method includes that the wireless STA acquires a transmission ending moment of a wireless frame when selecting to refuse or drop the wireless frame and not updating a locally stored Network Allocation Vector (NAV); and the wireless STA accesses the channel when the transmission of the wireless frame is ended and a preset condition is met. According to the disclosure, a collision problem may happen to the wireless STA, and the wireless STA can access the channel only when the preset condition is determined to be met after the transmission of the wireless frame is ended, so that the problem of transmission collision with a hidden STA during the wireless frame transmission of the wireless STA is solved.

Abstract: A multi-chip module (MCM) may include a substrate, and first and second physical-layer (PHY) chips mounted on the substrate. In some implementations, the first PHY chip includes a multiplexer and a PHY circuit. The multiplexer is configured to receive a multiplexed data stream from a media access control (MAC) device, to demultiplex the multiplexed data stream into first and second data streams, to output the first data stream to the PHY circuit, and to output the second data stream to the second PHY chip. In some implementations, the first PHY includes a router and a PHY circuit. The router is configured to receive a plurality of data packets from a MAC device, to route one or more of the data packets having a first address to the PHY circuit, and to route one or more of the data packets having a second address to the second PHY chip.

Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.

Abstract: The method includes: an intercepting station detecting a first radio signal of a third-party station and updating a local network allocation vector and/or response indication deferral; triggering a channel contention access procedure when determining that a second radio signal of the third-party station meets a spatial orthogonal condition, and then completing data transmission within updated time. In the case that the network allocation vector or response indication deferral is not 0, the third-party station ignoring or resetting the network allocation vector or the response indication deferral when determining that a sector transmission in a transmission initiated by the station is orthogonal with a transmission space to be carried out by itself, the third-party station initiating a contention and starting the spatial orthogonal transmission within a duration indicated by the updated network allocation vector or the response indication deferral.

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

Abstract: A transmitter/receiver pair may estimate a first channel interference caused during the spatial reuse phase by the transmitter/receiver pair to other transmitter/receiver pairs over a channel. A second channel interference experienced by the transmitter/receiver pair may be estimated during the spatial reuse phase by the transmitter/receiver pair from the other transmitter/receiver pairs. An interference margin may be estimated for the channel based on the first and second channel interferences. The interference margin may be announced to the other transmitter/receiver pairs in frame. The interference margin may then be complied with while communicating over the channel in order to control the interference.

Abstract: An efficient approach for a mobile device apparatus that is out of network coverage to communicate with the network is desired. The apparatus may be a user equipment (UE). The apparatus receives one or more device-to-device (D2D) signals respectively from one or more proximate UEs. The apparatus measures signal strength of the one or more D2D signals based on signal strength of one or more resource elements used for receiving one and/or more reference signals of the one or more D2D signals or signal strength of one or more resource elements used for receiving one or more data parts of the one or more D2D signals. The apparatus selects one of the one or more proximate UEs as a relay UE based on the measurement of the signal strength of the one or more D2D signals, to communicate with the base station via the selected relay UE.

Abstract: The present disclosure describes methods, systems, and computer program products for retrying message delivery in a network. One computer-implemented method includes determining a retry window (RW) for one or more retry attempts to send a message to a target system, determining a minimum silent interval (MSI) representing the minimum permitted time interval between two successive retry attempts, dividing the RW into one or more time slots of N duration, randomly determining, by a hardware processor, a point-in-time within a time slot starting from the beginning time of the time slot, and sending a message as a retry attempt to the target system at the point-in-time.

Abstract: A network element that allows in-band control of the network element includes a plurality of interfaces for connecting to other network elements. The network element includes a high data rate transceiver logic configured for transmitting and receiving communications having a first data rate over a first communication channel. The network element also includes a low data rate transceiver logic configured for transmitting and receiving communications having a second data rate that is substantially lower than the first data rate over a second communication channel. The network element further includes a shared photodiode for receiving optical signals over the first and second communication channels. The shared photodiode also converts received optical signals into electrical signals for processing by one of the high data rate transceiver logic and the low data rate transceiver logic.

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: An approach is provided in which in which a data stream encoder resynchronizes a reference template to a data stream by loading a lock step buffer and a look-ahead buffer with template data blocks retrieved from the reference template. The data stream encoder determines that the lock step buffer's template data is different from a data stream data block and, in turn, preserves the template data block in the look-ahead buffer for subsequent resynchronization. In turn, the data stream encoder matches the look-ahead buffer's preserved template data with a subsequent data stream data block and resynchronizes the reference template to the data stream accordingly.

Abstract: A method and system are provided having an uplink control structure and a pilot signal having minimal signal overhead for providing channel estimation and data demodulation in a wireless communication network. The uplink control structures enable mobile terminals to communicate with corresponding base stations to perform various functions including obtaining initial system access, submitting a bandwidth request, triggering a continuation of negotiated service, or providing a proposed allocation re-configuration header. A dedicated random access channel is provided to communicatively couple the base station and the mobile terminal so that the mobile terminal can select a random access signaling identification. A resource request is received at the base station to uplink resource information from the mobile terminal and an initial access information request is received from the mobile terminal to configure the base station connection.

Abstract: Method for managing the accessibility of an uplink channel, of the control channel and/or data channel type, for a communications network infrastructure with a plurality of pieces of radio equipment (SU1; SU2; SU3), in which the accessibility to the uplink channel is transmitted on a downlink channel of the network infrastructure to the pieces of radio equipment by means of status symbols indicating if access to the uplink channel is authorized during a timeslot.

Abstract: In accordance with various example embodiments, a method of receiving a protocol in the receiver, wherein the legacy protocol includes non-biphase encoded information, decoding the legacy protocol using a biphase decoder to produce a detected code, and correlating the detected code with a known code to verify the non-biphase encoded information.

Abstract: Systems and methods of this disclosure can operate to synchronize timing between communication devices and can include a timing server. The timing server can provide a communications interface for the exchange of timing messages to a first communication device. Using existing protocol messages defined in the M-CMTS architecture, additional communication devices can intercept, snoop, and extract timing information from messages between the first communication device and the timing server to adjust their internal clocks to maintain timing synchronization thereby reducing the number of communication interfaces required from a timing server.

Abstract: The present invention relates to a wireless communication system and, more specifically, provides a method and device for transmitting/receiving a frame in accordance with the bandwidth thereof in a WLAN system. The method whereby a station (STA) performs virtual carrier sensing (VCS) in a WLAN system according to one embodiment of the present invention may comprise the steps of: receiving a frame by the STA; determining by the STA, a VCS time length value on the basis of the response indication parameter and/or channel bandwidth type of the frame; and deferring channel access by the STA for the VCS time length value.

Abstract: Transmission over a communication channel using carrier sense multiple access collision avoidance (CSMA/CA) may be performed by determining for each frame if the communication channel is busy after a backoff time proportional to a randomly generated number within a contention window (CW). When the channel is not busy, a frame of data may be transmitted. When the channel is busy, the device may periodically determine if the communication channel is busy after subsequent backoff times. The value of CW is adjusted for each subsequent backoff time using a fairness protocol, in which the value of CW is increased until the value of CW reaches a maximum CW value; and then the value of CW is held until a fairness number of backoff repetitions reaches a fairness threshold; then the value of CW is reduced incrementally until the value of CW reaches a minimum CW value.

Abstract: Systems and techniques are disclosed to manage coexistence of wireless technologies, including 5G unlicensed transmissions, with 802.11 transmissions in the unlicensed band. Aspects of the present disclosure include collision avoidance to achieve fair access of transmissions on unlicensed bands. Other aspects, embodiments, and features are also claimed and described.

Abstract: A data packet for bidirectional transmission of data packets in the case of data transmission between a first and a second communication device and a method for transmitting such a data packet is provided. A data packet that is transmitted from a first to a second communication device to contain a piece of acknowledgement information for all data packets that have already been received from the first communication device previously during this data transmission.

Abstract: A network device may transmit a short packet when the length of application data that will be transmitted does not exceed a threshold length. In some embodiments, the network device may transmit the application data in a frame control field of the short packet. The short packet may not include a payload field. In other embodiments, the network device may support multiple short payload field lengths and may transmit the application data in a short payload field with an appropriate short payload field length. The network device may also support communication techniques to transmit the application data in the short packet.

Abstract: A transmission regulation method which may be performed by a station having at least one data frame for transmitting over a telecommunications network is disclosed. In one aspect, the method comprises, during at least one selection round from a set of selection rounds, obtaining a value representative either of an authorization to transmit or a prohibition to transmit the frame. Furthermore, when the value is representative of an authorization to transmit, transmitting an information signal over a first communications channel of the network, to inform the other stations that the station has obtained a value representative of an authorization to transmit; or when the value is representative of a prohibition to transmit, listening for an information signal, if any, transmitted over the first communications channel of the network. The method listens to or transmits over a second communications channel of the network that is different from the first communications channel.

Abstract: An apparatus or method for transmitting data blocks on a communications channel having a radio link between two stations including a user equipment comprises receiving first data blocks from the user equipment, and transmitting second data blocks to the user equipment. A polling interval is dynamically set for the transmission of polling messages to the user equipment after transmission of the second data blocks, the polling interval being set in accordance with at least one of: a size of one or more data blocks received by the apparatus from the user equipment, a size of one or more blocks transmitted from the apparatus to the user equipment, and a service to which the user equipment is subscribed. The apparatus may be used as a PCU in a cellular mobile telephone system.

Abstract: Disclosed is a synchronization method in a distributed wireless communication system and a terminal supporting the same. In a synchronization method, a terminal splits a synchronization period into a plurality of backoff slots and randomly selects a backoff counter using the contention window. Furthermore, the terminal checks whether a channel is idle during at least one of the plurality of backoff slots and changes the backoff counter based on a result of the check.

Abstract: A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

Abstract: Performing scheduling operations by a centralized scheduler in a wireless communication system. Receiving Channel State Information (CSI) about a channel between each of a plurality of Transmission Points (TPs) and each of a plurality of User Equipments (UEs) performing communication with each of the plurality of TPs from each of the plurality of TPs, performing a first scheduling operation for allocating wireless resources to each of the plurality of TPs based on the CSI received from each of the plurality of TPs, and transmitting first scheduling information representing a result of the first scheduling operation to each of the plurality of TPs. The first scheduling information contains transmission power information representing transmission power for each of the wireless resources allocated to each of the plurality of TPs, and is used to perform a second scheduling operation to select a UE to communicate with each of the plurality of TPs.

Abstract: An apparatus and method for accessing a Random Access Channel (RACH) at a low-power terminal in a wireless communication system are provided, in which resource allocation information is acquired according to used resource identification information included in system information broadcast from a Base Station (BS), and a random access preamble is transmitted to the BS according to the acquired resource allocation information.

Abstract: A wireless end-user device has a wireless modem, a network stack configurable to receive and transmit data via the modem and a wireless network, and two Application Programming Interfaces (APIs) available to device applications. The first API allows applications to open and use data flows via the network stack. The second API allows applications to make data transfer requests for media objects associated with network resource identifiers. The second API prompts a media service manager to manage network data transfers for the media object via the network stack. A service classification agent associates wireless network data usage for the media object network data transfers with the device application making the request.

Abstract: A method for gaining access according to one embodiment of the present invention in which a station (STA) gains access to a medium in wireless communication system comprises the steps of: sensing a carrier wave for a medium so as to transmit a set frame; and, if the medium is busy, executing a random back-off procedure, wherein the starting point of the random back-off procedure is indicated by a second parameter randomly selected from within a range in accordance with a first parameter.

Abstract: System and method embodiments are provided for differentiated fast initial link setup. The embodiments enable improved performance of initial link setup by stations in a wireless local area network during the association process and mitigate the negative effect of bursty association on existing associated users. In an embodiment, a method in a wirelessly enabled network component for differentiated fast initial link setup in a wireless local area network, includes determining categories of station types for initial link setup; determining initial link setup conditions for each station type, wherein the initial link setup conditions specify a priority of associating for each station type; and broadcasting initial link setup conditions to a plurality of stations, wherein the stations determine whether to associate with the wirelessly enabled network component immediately or after a time duration according to the station types and initial link setup conditions.

Abstract: An Ethernet/Fibre Channel conversion system includes a chassis having a first end and a second end that is located opposite the chassis from the first end. An Ethernet interface is located on the first end and is configured to directly mate with an Ethernet port on an Ethernet device. A Fibre Channel interface is located on the second end. An Ethernet/Fibre Channel conversion engine is housed in the chassis and configured to receive Ethernet protocol signals through the Ethernet interface, convert the Ethernet protocol signals to Fibre Channel protocol signals, and send the Fibre Channel protocol signals through the Fibre Channel interface. The Ethernet/Fibre Channel conversion engine is also configured to receive Fibre channel protocol signals from the Fibre Channel IHS through the Fibre Channel interface, convert the Fibre channel protocol signals to Ethernet protocol signals, and send the Ethernet protocol signals through the Ethernet interface.

Abstract: A presence of interference between a first wireless network and a second wireless network is determined. Transmissions in the first wireless network are coordinated with transmissions in the second wireless network to reduce interference between the first wireless network and the second wireless network. Transmissions in the first wireless network are scheduled based on the coordinating to reduce interference between the first wireless network and the second wireless network.