Patent application number | Description | Published |
20100220724 | METRO ETHERNET SERVICE ENHANCEMENTS - Numerous enhancements to metro Ethernet network (MEN) services include an enhancement of the overall MEN Quality of Service (QoS) architecture, an enhancement to classification at the provider edge, the use of Ethernet QoS classes, enhancements to policing and marking at ingress provider edge equipment, the provision of traffic management functions at egress provider edge equipment, the use of multiple Ethernet virtual connections (EVCs) and Aggregate EVCs, an enhancement to QoS across an external network-network interface and an enhancement to treatment of Ethernet service frames in a core network. | 09-02-2010 |
20110051723 | ETHERNET DIFFERENTIATED SERVICES ARCHITECTURE - An edge node of a communication network and method to classify incoming Ethernet traffic based on predetermined criteria. An ingress switch is configured to receive an incoming Ethernet frame. A frame classifier is configured to identify flows and to correlate a flow to a corresponding bandwidth profile and corresponding forwarding treatments defined for the flow. | 03-03-2011 |
20120087358 | METHOD AND SYSTEM FOR ENHANCED CONTENTION AVOIDANCE IN MULTI-USER MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS NETWORKS - Wireless medium reservation for simultaneous transmission of multiple downlink spatial streams to multiple receiver wireless stations during a multi-user transmit opportunity over a wireless medium, is provided. Such a reservation includes reserving a transmission period for simultaneously transmitting data from a transmitting station to multiple intended receiving stations on multiple downlink spatial streams over a wireless communication medium. Reserving the transmission period includes transmitting a multi-user request-to-send (MU-RTS) frame to the multiple receiving stations, the RTS frame including a receiver address (RA) field comprising compressed addresses for the multiple receiving stations. The MU-RTS frame includes an indication field that indicates the RTS frame as an MU-RTS without altering the RTS frame type/subtype. | 04-12-2012 |
20120142391 | ACCESS POINT FOR ASSIGNING GROUP ID AND METHOD OF ASSIGNING GROUP ID - Provided is an access point that may transmit information about a data receiving terminal that receives data from the access point, to a terminal, using a limited number of bits. Using an overloading scheme, information about multiple terminals may be expressed based on a limited number of bits. | 06-07-2012 |
20120155259 | ACCESS CATEGORY ENFORCEMENT IN WIRELESS LOCAL AREA NETWORKS - The present invention provides a control function in an access point, switch, or like node on a wireless local area network. The control function operates to ensure frames transmitted by a user terminal are transmitted using an appropriate transmission priority scheme. The control function will assist and provide an appropriate priority level to the user terminal. Frames transmitted from the user terminal are passed through the control function, which will analyze priority level information provided in the frames to determine if the frames were transmitted using the appropriate transmission priority scheme. An enforcement action may be taken in response to identifying frames that were not transmitted using the appropriate transmission priority scheme. | 06-21-2012 |
20120207071 | ENHANCED POWER SAVE MULTI-POLL (PSMP) PROTOCOL FOR MULTI-USER MIMO BASED WIRELESS LOCAL AREA NETWORKS - Wireless communication in a wireless communication system, comprises maintaining data blocks at a wireless transmitting station for transmission to multiple wireless receiving stations over a shared wireless communication medium, and simultaneously transmitting data blocks from the transmitting station over multiple spatial streams to multiple destination wireless receiving stations in a power save multi-poll (PSMP) sequence, via the wireless communication medium. | 08-16-2012 |
20130033983 | Access Category Enforcement in Wireless Local Area Networks - The present invention provides a control function in an access point, switch, or like node on a wireless local area network. The control function operates to ensure frames transmitted by a user terminal are transmitted using an appropriate transmission priority scheme. The control function will assist and provide an appropriate priority level to the user terminal. Frames transmitted from the user terminal are passed through the control function, which will analyze priority level information provided in the frames to determine if the frames were transmitted using the appropriate transmission priority scheme. An enforcement action may be taken in response to identifying frames that were not transmitted using the appropriate transmission priority scheme. | 02-07-2013 |
20130039215 | System and Method for Direct Multi-User Transmission - A method for transmitting to a plurality of responder stations includes configuring a first responder station for direct link communications, the first responder station being configured with a first group identifier and a first position. The method also includes configuring a second responder station for direct link communications, the second responder station being configured with a second group identifier and a second position. The method further includes transmitting to both the first responder station and the second responder station in a first single transmission, the first single transmission including first information for the first responder station and second information for the second responder station, where the first information is labeled with the first group identifier and located in the first position, and the second information is labeled with the second group identifier and located in the second position. | 02-14-2013 |
20130064166 | System and Method for Direct Multi-User Transmission - A method for transmitting to a plurality of responder stations includes transmitting a first direct link setup request message to a first responder station via an access point, the first direct link setup request message including a first group identifier, the first group identifier being received from a communications controller and being associated with the first responder station, and transmitting a second direct link setup request message to a second responder station via the access point, the second setup request message including a second group identifier, the second group identifier being received from the communications controller and being associated with the second responder station. The method also includes transmitting data to the first responder station and the second responder station in a single transmission. | 03-14-2013 |
20130114411 | METHOD AND SYSTEM FOR PACKET DISCARD PRECEDENCE FOR VIDEO TRANSPORT - Discard precedence priority of packets carrying an encoded video stream in a packet network is determined based on priority information included in the encoded video stream. A video streamer segments an encoded video stream and encapsulates the segment in an Internet Protocol (IP) packet. Priority information associated with the IP packet is determined based on at least one priority indicator associated with the segment that was included in the encoded video stream. Alternately, priority information associated with an Ethernet frame is determined based on at least one priority indicator associated with the segment that was included in the encoded video stream. | 05-09-2013 |
20130148644 | System and Method for Preambles in a Wireless Communications Network - A method for transmitting a frame includes generating an omni portion of the frame, the omni portion including a non-beamformed long training field and a signal field, the non-beamformed long training field including channel estimation information used to decode the signal field, the non-beamformed long training field configured to be transmitted through one of multiple antennas and multiple streams. The method also includes generating a multi-stream portion of the frame, the multi-stream portion including a data field and a multi-stream long training field, the multi-stream long training field including station-specific decoding information for station-specific data in the data field. The method further includes applying a beamforming indicator to the signal field of the omni portion, and transmitting the frame. | 06-13-2013 |
20130155929 | System and Method for Communicating Using Short-Header Frames - A method for communicating information from a power-constrained device includes configuring, by the power-constrained device, a short media access control (MAC) frame having fewer fields than a full-length MAC frame. The method also includes transmitting, by the power-constrained device, the short MAC frame. | 06-20-2013 |
20130177002 | Systems and Methods for AP Discovery with FILS Beacon - A method and apparatus are disclosed for supporting access point (AP) discovery by a handset/station (STA) using a fast initial link setup (FILS) discovery frame. An embodiment method includes transmitting a plurality of FILS discovery frames at faster time intervals than designated for transmitting standard AP beacons, wherein the FILS discovery frames have a smaller size than standard AP beacons. An embodiment apparatus includes a processor and a computer readable storage medium storing programming for execution by the processor, the programming including instructions to broadcast a standard AP beacon for advertising a basic service set (BSS) repeatedly at subsequent time intervals, and broadcast a FILS discovery frame for advertising the BSS repeatedly at faster subsequent time intervals than for the standard AP beacon, wherein the FILS discovery frame has a smaller size than the standard AP beacon. | 07-11-2013 |
20130195167 | System and Method for Non-Interleaved Signal Field - Efficient decoding in IEEE 802.11ah networks can be achieved by transmitting the signal (SIG) preamble field without interleaving bits within the SIG field. This may allow channel equalization and decoding steps to be performed contemporaneously upon reception of the frame, which allows for the implementation of non-linear channel equalization techniques (e.g., maximum likelihood (ML) equalization, etc. | 08-01-2013 |
20130216002 | Dual-Stream Signal (SIG) Field Encoding with Higher Order Modulation - Signal (SIF) field capacity can be significantly increased by encoding SIG field data using two streams in accordance with a space-time block code (STBC) encoding scheme. Dual-stream SIG field encoding allows for the utilization of higher order modulation schemes, such as quadrature phase-shift keying (QPSK), which increases SIG field capacity. Dual-stream encoded SIG fields are transmitted using an omnidirectional beam to allow mobile stations to accurately decode the SIG field irrespective of their spatial location. | 08-22-2013 |
20130223313 | System and Method for Scheduling Communications - A method for operating a station includes scheduling a first appointment at a first time with an access point to communicate with the access point in response to a first message from the access point, wherein the first message indicates that the station has ownership of a communications medium used by the station at the first time. The method also includes transmitting a second message to the access point in accordance with the first appointment. | 08-29-2013 |
20130235859 | 802.11 PHY HASHED SSID - An access point (AP) hashes its SSID/BSSID according to a hashing function H and transmits wirelessly the hashed SSID/BSSID within a physical layer frame/packet to a user station (STA). The hashed SSID/BSSID uniquely identifies the AP. In one embodiment, the hashed SSID/BSSID is transmitted within a SIGNAL field of a preamble with the frame/packet. Upon receipt, the user station recovers the hashed SSID/BSSID and compares it to an expected hashed SSID/BSSID (calculated using the same hashing function H and a desired SSID/BSSID). In response to the comparison, the user station performs one or more actions. | 09-12-2013 |
20130294328 | System and Method for Radio Frequency Repeating - In one embodiment, a method for relaying frames including receiving, by a repeater from a first station, a first frame, where the first frame has a first header having a first indicator and determining whether the first frame will be relayed in accordance with the first indicator. The method also includes transmitting, by the repeater to an access point, the first frame when the first frame is determined to be relayed. | 11-07-2013 |
20130308447 | Systems and Methods to Provision Quality of Service Sensitive Devices in Wireless Local Area Networks - System and method embodiments are provided for provisioning a quality of cellular user experience (QoE) or quality of service (QoS) specified device in a wireless local area network (LAN). The embodiments enable a QoE or QoS specified by a service agreement for a device to be maintained during periods when the device is transmitting data to and receiving data from the wireless LAN (e.g., a WiFi hotspot). In an embodiment, a method includes determining that at least one QoS-sensitive device is communicating with a wireless LAN access point (AP), reserving a contention free period (CFP) in a superframe for the at least one QoS-sensitive device to communicate with the AP, and allocating a contention period (CP) in the superframe for non-QoS-sensitive devices to communicate with the AP, wherein the non-QoS-sensitive devices are prohibited from transmitting during the CFP. | 11-21-2013 |
20130315244 | VLAN SUPPORT OF DIFFERENTIATED SERVICES - The two types of virtual local area networks (VLANs) may be defined: p-bits-Inferred-scheduling class VLAN (p-VLAN); and VLAN- | 11-28-2013 |
20140056204 | Systems and Methods for Interference Alignment in Wi-Fi - System and method embodiments are provided for interference alignment in a wireless local area network (LAN) with an overlapping basic service set (OBSS). In an embodiment, a method includes instructing a first access point (AP) in the wireless LAN to broadcast a null data packet (NDP) sounding packet to a plurality of stations when no other AP is broadcasting, wherein the NDP sounding packet comprises a plurality of long training field (LTFs), and wherein a total number of LTFs is equal to a total number of transmission streams, receiving channel beamforming (BF) information and a signal plus interference to noise ratio (SINR) from each of the stations, wherein each of the stations computes the channel BF information and the SINR from sounding packets received from each of the APs in the wireless LAN, and determining a transmission schedule according to the SINRs and the channel BF information. | 02-27-2014 |
20140056205 | System and Method for a Collaborative Service Set - In one embodiment, a collaborative service set (CSS) includes a controller access point (AP) configured to be associated with a first plurality of stations and a first member AP, where the first member AP is associated with a second plurality of stations, where the controller AP is configured to coordinate transmissions between the first member AP and the second plurality of stations with transmissions between the controller AP and the first plurality of stations, where the controller AP and the first member AP are configured to transmit messages simultaneously. | 02-27-2014 |
20140086251 | ETHERNET DIFFERENTIATED SERVICES ARCHITECTURE - An edge node of a communication network and method to classify incoming Ethernet traffic based on predetermined criteria. An ingress switch is configured to receive an incoming Ethernet frame. A frame classifier is configured to identify flows and to correlate a flow to a corresponding bandwidth profile and corresponding forwarding treatments defined for the flow. | 03-27-2014 |
20140119300 | System and Method for User Cooperation Protocol for Interference Alignment in Wireless Networks - Embodiments are provided herein for implementing a user cooperation protocol for interference alignment (IA) in wireless local area network (WLAN) or a Wi-Fi hotspot. The embodiments allow collecting knowledge of the channels from user stations (STAs) and sending this information to the corresponding access points (APs) in the network. This information is then used by the APs to pre-code their signals such as to remove interfering signals to non-intended STAs. An AP transmits to the STAs a group identifier (GrpID) indicating an order of STAs for transmitting channel state information (CSI) and an AP index indicating an order of STA groups of the APs for transmitting the CSI. When a STA detects a CSI transmission from another STA preceding the STA in the order of transmission as indicated by the AP index and GrpID, the STA transmits its CSI. | 05-01-2014 |
20140146820 | METHOD AND SYSTEM FOR QUALITY OF SERVICE SUPPORT FOR ETHERNET MULTISERVICE INTERWORKING OVER MULTIPROTOCOL LABEL SWITCHING - A method and system for maintaining quality of service parameters for transmissions as a native Ethernet service between a first network having a first communication protocol and a second network having a second communication protocol. The interworking device includes a first network interface operable to communicate with the first communication network using the first communication protocol, a second network interface operable to communicate with the second communication network using second communication protocol and a processing unit in communication with the first network interface and the second network interface. The processing unit receives a frame from the first network in the first communication protocol, maps parameters corresponding to quality of service parameters in the first communication protocol to quality of service parameters in the second communication protocol and assembles a data packet in the second communication protocol. The assembled data packet includes mapped quality of service parameters. | 05-29-2014 |
20140169339 | Systems and Methods to Achieve Fairness in Wireless LANs for Cellular Offloading - System and method embodiments are included to provide various degrees of time allocation fairness to users using varying target transmission opportunity (TXOP) values. In one embodiment, a method for promoting various degrees of fairness for users in a wireless network includes assigning a target TXOP value for one or more users in the wireless network, wherein the target TXOP value indicates a number of time units for transmissions to be met on average over time by the one or more users, and transmitting the target TXOP value to the one or more users. In another embodiment, a method includes receiving a TXOP value from the wireless network, wherein the target TXOP value indicates a number of time units allocated for transmissions, and transmitting traffic over a plurality of time periods that have an average duration about equal to the number of time units. | 06-19-2014 |
20140204746 | OpenFlow Enabled WiFi Management Entity Architecture - System and method embodiments are provided to improve offloading traffic from mobile operators networks via a WiFi network. The embodiments also include schemes to offload traffic between WiFi networks. The embodiments include a network component comprising a WiFi management entity (WiME) configured to serve as an anchor point for a user device at a WiFi network and communicate with a management entity at a wireless network using OpenFlow protocol to handle a plurality of control and mobility functionalities for traffic in the WiFi network, wherein the control and mobility functionalities include offloading traffic for the user device from the wireless network to the WiFi network. | 07-24-2014 |
20140219096 | ETHERNET LAN SERVICE ENHANCEMENTS - Numerous enhancements to metro Ethernet network (MEN) E-LAN services and IETF Virtual Private LAN Service (VPLS) include an enhancement of the overall Quality of Service (QoS) architecture, an enhancement to classification at the provider edge, the use of Ethernet QoS classes, enhancements to policing and marking at ingress provider edge equipment, the provision of traffic management functions at egress provider edge equipment, the use of multiple Ethernet virtual connections (EVCs) and Aggregate EVCs, an enhancement to QoS across an external network-network interface and an enhancement to treatment of Ethernet service frames in a core network. | 08-07-2014 |
20140293791 | ETHERNET DIFFERENTIATED SERVICES CONDITIONING - A network includes an edge node configured to define the per-hop behaviors using a set of bits in an Ethernet header of a frame and a core node configured to receive the frame and to forward the frame according to the per-hop-behaviors. The network can also include a defined set of differentiated service classes, each differentiated service class associated with the set of per-hop behaviors, indicated in the set of priority bits. The network classifies the Ethernet frame based on at least one of a set of priority bits or information in at least one protocol layer in the frame header of the Ethernet frame and determines a per-hop behavior based on the classification. | 10-02-2014 |
20140328242 | System and Method for Wi-Fi Downlink-Uplink Protocol Design for Uplink Interference Alignment - Embodiments are provided to enable concurrent uplink transmissions from multiple Wi-Fi stations (STAs) to one or more access points (APs) using Interference Alignment (IA). In an embodiment, the STAs broadcast, to one or more APs, beamforming reports including channel estimation information for downlink. The one or more AP then performs channel estimation using the beamforming reports, and selects at least some of the STAs. The AP also computes beamforming information for IA of uplink transmissions between the selected STAs and sends, to the selected STAs, the beamforming information. The beamforming information is piggy-backed over downlink data packets to the selected STAs. Each selected STA then sends an uplink data frame concurrently with one or more other uplink data frames from one or more other selected STAs to the AP. The uplink data frames are configured for concurrent uplink transmissions according to the beamforming information for IA. | 11-06-2014 |
20140341129 | Systems and Methods for Operation of Wireless User Devices with Cellular and Wi-Fi Interfaces - An embodiment method for wireless communication includes grouping a plurality of user equipments (UEs) wirelessly coupled to a cellular base station (BS) into a UE cluster to function as a Wi-Fi virtual station (V-STA), and communicating with an access point (AP) to contend for a Wi-Fi transmission opportunity (TXOP) for the V-STA. In a further embodiment, the cellular BS contends for the TXOP on behalf of the UE cluster using a carrier sense multiple access with collision avoidance (CSMA-CA) procedure. In an alternative embodiment, one UE in the UE cluster is selected as a leader UE to contend for the TXOP on behalf of the UE cluster using a CSMA-CA procedure. | 11-20-2014 |
20150023440 | Systems and Methods for Trellis Coded Quantization Based Channel Feedback - System and method embodiments are provided for Trellis Coded Quantization (TCQ) based channel feedback. The embodiments provide full channel state information with a short feedback size to a scheduler in order for the scheduler to apply advanced beamforming schemes, such as those designed in non-linear precoder methods. In an embodiment, a method in a station for providing channel feedback to a transmission point (TP) in a wireless system includes receiving a signal from the TP; estimating channel parameters for the signal; applying a TCQ scheme to the estimated channel parameters to map the channel estimate parameters to trellis codes; and transmitting full channel state information to the TP, wherein the full channel state information comprises output of a Viterbi algorithm (VA) corresponding to the trellis codes. | 01-22-2015 |