Patent application number | Description | Published |
20090201907 | MULTI-HOP COMMUNICATIONS IN A WIRELESS NETWORK - Systems and techniques are disclosed relating to wireless communications. The systems and techniques involve wireless communications wherein a module or communications device is configured to select first and second terminal pairs, the first terminal pair having a first transmitting terminal and a first receiving terminal, and the second terminal pair having a second transmitting terminal and a second receiving terminal, schedule a first signal transmission from the first transmitting terminal to an intermediate terminal, the first signal transmission being destined for the first receiving terminal, schedule, simultaneously with the first signal transmission, a second signal transmission from the second transmitting terminal to the second receiving terminal, and schedule a power level for each of the first and second signal transmissions that satisfies a target quality parameter for each of the intermediate terminal and the second receiving terminal. | 08-13-2009 |
20090285116 | MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS - Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries ( | 11-19-2009 |
20090290616 | METHOD AND APPARATUS FOR DETERMINING THE SPATIAL CHANNELS IN AN SPATIAL DIVISION MULTIPLE ACCESS (SDMA)-BASED WIRELESS COMMUNICATION SYSTEM - An access point is disclosed herein that comprises a wireless network adapter configured to support a backhaul connection for a peer node to a network; a processing system configured to calculate precoding matrices that define spatial streams; and a transceiver configured to transmit data to the nodes on the spatial streams. | 11-26-2009 |
20100040019 | WIRELESS COMMUNICATION SYSTEMS WITH FEMTO NODES - Systems and methods for performing a handoff of an access terminal from a macro node to a femto node are disclosed. In one embodiment, the femto node is configured to transmit a predetermined signal for determining signal quality and an identifier that uniquely identifies the femto node to the access terminal. The access terminal is configured to transmit the identifier to the macro node. The femto node is identified as a hand in target based on the transmitted identifier and the macro node is configured to hand in the access terminal to the femto node. | 02-18-2010 |
20100040038 | WIRELESS COMMUNICATION SYSTEMS WITH FEMTO CELLS - Systems and methods of uniquely identifying communication nodes in a wireless communication system are described herein. One embodiment of the disclosure provides a wireless apparatus comprising a transceiver configured to receive a first identifier during at least one time slot. The first identifier identifies a first communication node. The apparatus further comprises a processing circuit configured to determine if the first identifier is received during a first time slot that is different from at least one pre-assigned time slot. | 02-18-2010 |
20100080163 | APPARATUS AND METHODS OF PROVIDING AND RECEIVING VENUE LEVEL TRANSMISSIONS AND SERVICES - A venue-cast system and method for providing and receiving venue level transmissions and services, including discovery of a venue specific transmission by receiving an overhead signal from a non-venue network, extracting information for receiving the venue specific transmission from the overhead signal, and tuning to receive the venue specific transmission based on the extracted information. The venue level transmission may be provided and received in a manner that does not prevent an access terminal from receiving a local area or wide area transmission. | 04-01-2010 |
20110154144 | ENHANCED BLOCK ACKNOWLEDGEMENT - Embodiments disclosed herein address the need in the art for enhanced block acknowledgement. In one embodiment, a receiver indicates a decoding delay for a maximum size aggregate frame in Block Ack negotiation, which may be used by a transmitter to determine to which Block Ack Request a Block Acknowledgement is responsive. In another embodiment, a Transmission Sequence Number (TSN) may be included in a Block Ack Request. The receiver includes the TSN in the corresponding Block Ack response. This allows the transmitter to determine which frames are “in transit.” The TSN may be used to identify blocks. In another embodiment, a TSN may be associated with one or more transmitted frames. While, the TSN is not transmitted with the Block Ack Request, the transmitter may determine which TSN corresponds with a Block Ack response in accordance with acknowledgements contained therein. Combinations of these techniques may be deployed. Various other aspects are also presented. | 06-23-2011 |
20110223952 | DISTRIBUTED HIERARCHICAL SCHEDULING IN AN AD HOC NETWORK - An ad hoc network with distributed hierarchical scheduling is disclosed. In one aspect, stations in a network mesh detect interfering neighbor stations and form interference lists. Stations transmit their interference lists. Scheduling stations schedule allocations for child stations in response to interference lists, received remote allocations, or a combination thereof. Coordination messages are transmitted including frame structure, allocations, and interference lists, among others. In another aspect, an ad hoc mesh network may be organized into a tree topology. In an example wireless backhaul network, this matches traffic flow. Distributed, hierarchical scheduling is provided where parents schedule communication with children while respecting already scheduled transmissions to/from interferers and to/from interferers of their respective children. Procedures to construct interference constraints for distributed, hierarchical scheduling are described, resulting in efficient scheduling and reuse in an ad hoc wireless network, without centralized scheduling. Various other aspects are also disclosed. | 09-15-2011 |
20120176949 | STANDBY TIME IMPROVEMENTS FOR STATIONS IN A WIRELESS NETWORK - A method includes receiving, at a station, a first delivery traffic indication message (DTIM) assigned to a first delivery interval. The first DTIM is configured to indicate whether group-addressed traffic is scheduled for delivery during a beacon interval. The first delivery interval is larger than a second delivery interval associated with a second DTIM. The method further includes receiving the group-addressed traffic during the beacon interval. | 07-12-2012 |
20120238268 | APPARATUS AND METHODS OF HAND-IN TO A FEMTO NODE - Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon over an operating frequency of the macrocell base station, and the macrocell base station, and/or one or more network components, can identify the femto node based on one or more parameters reported by the device from receiving the beacon. The beacon can be transmitted at varying powers to ensure active hand-in triggering, mitigate interference and/or can be powered on and off for such purposes. In addition, a macrocell base station can regulate compressed mode periods during which a device can measure the femto node based on receiving information regarding device proximity to the femto node, or a device can generate proximity indication messages base on measuring the beacon signals, etc. | 09-20-2012 |
20120309394 | APPARATUS AND METHODS FOR HAND-IN TO A FEMTO NODE - Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon, which can be received and reported by a device to a source base station along with one or more parameters for disambiguating a target femto node. The source base station can communicate a handover message to the femto node or a related femto gateway along with the one or more parameters. The femto node or femto gateway can disambiguate the intended target femto node based in part on the one or more parameters, which can include applying one or more filters. Additionally, the femto node can broadcast multiple beacons to assist in disambiguation of the target femto node. Also, where complete disambiguation is not possible, the femto gateway can prepare multiple femto nodes for hand-in. | 12-06-2012 |
20130034076 | METHOD, APPARATUS, AND SYSTEM FOR MEDIUM ACCESS CONTROL - Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, an apparatus comprises a first layer for receiving one or more packets from one or more data flows and for generating one or more first layer Protocol Data Units (PDUs) from the one or more packets. In another aspect, a second layer is deployed for generating one or more MAC frames based on the one or more MAC layer PDUs. In another aspect, a MAC frame is deployed for transmitting one or more MAC layer PDUs. The MAC frame may comprise a control channel for transmitting one or more allocations. The MAC frame may comprise one or more traffic segments in accordance with allocations. | 02-07-2013 |
20130121293 | PROTECTION FOR DIRECT LINK SETUP (DLS) TRANSMISSIONS IN WIRELESS COMMUNICATION SYSTEMS - Certain embodiments of the present disclosure provide techniques and apparatus for establishing direct link setup (DLS) connections between stations in a wireless local area network (WLAN). The DLS connections may be established in a manner that helps avoid collisions with transmissions from hidden stations. Other aspects, embodiments, and features are also claimed and described. | 05-16-2013 |
20130148632 | USING IDENTIFIER MAPPING TO RESOLVE ACCESS POINT IDENTIFIER AMBIGUITY - Ambiguity (e.g., confusion) associated with access point identifiers may be resolved by querying candidate target access points and/or by using historical records indicative of one or more access points that the access point has previously accessed. For example, messages may be sent to access points that are assigned the same identifier to cause the access points to monitor for a signal from an access terminal that received the identifier from a target access point. The target access point may then be identified based on any responses that indicate that a signal was received from the access terminal In some aspects the access points subject to being queried may be selected using a tiered priority. In addition, it may be determined based on prior handoffs of a given access terminal that when that access terminal reports a given identifier, the access terminal usually ends up being handed-off to a particular access point. Accordingly, a mapping may be maintained for that access terminal that maps the identifier to that access point so that the mapping may be used to resolve any future confusion associated with the use of that identifier by that access terminal | 06-13-2013 |
20130150046 | USING IDENTIFIER MAPPING TO RESOLVE ACCESS POINT IDENTIFIER AMBIGUITY - Ambiguity (e.g., confusion) associated with access point identifiers may be resolved by querying candidate target access points and/or by using historical records indicative of one or more access points that the access point has previously accessed. For example, messages may be sent to access points that are assigned the same identifier to cause the access points to monitor for a signal from an access terminal that received the identifier from a target access point. The target access point may then be identified based on any responses that indicate that a signal was received from the access terminal. In some aspects the access points subject to being queried may be selected using a tiered priority. In addition, it may be determined based on prior handoffs of a given access terminal that when that access terminal reports a given identifier, the access terminal usually ends up being handed-off to a particular access point. Accordingly, a mapping may be maintained for that access terminal that maps the identifier to that access point so that the mapping may be used to resolve any future confusion associated with the use of that identifier by that access terminal. | 06-13-2013 |
20130188621 | NEIGHBOR DISCOVERY IN A WIRELESS SYSTEM - Beacons may be grouped to facilitate neighbor discovery in a wireless network. For example, neighboring access devices such as IEEE 802.11 access points may cooperate to transmit beacons in a group. In this way, a wireless device seeking to discover the neighboring access devices may scan for the beacons for a shorter period of time. An indication may be provided to enable a wireless device to more efficiently scan the beacons. For example, the indication may indicate the channel the wireless device should scan to receive the next beacon that is to be transmitted. In addition, the indication may include information relating to the transmission time of the next beacon. Other aspects, embodiments, and features are also claimed and described. | 07-25-2013 |
20130210485 | METHOD AND APPARATUS FOR LOCATING A WIRELESS LOCAL AREA NETWORK IN A WIDE AREA NETWORK - The disclosure is directed to a mobile communication device that measures characteristics or attributes of a first communications network that vary according to physical location within that first communications network to create a fingerprint, or signature, of a location within the first communications network. When the fingerprint of the current location of the mobile device is created it can be compared to a known fingerprint associated with a second communication network to determine the mobile device's proximity to the second communications network. For example, the first communications network may be a CDMA wide area wireless communication network and the second communications network may be a 802.11 wireless LAN. | 08-15-2013 |
20140223479 | APPARATUS AND METHODS OF PROVIDING AND RECEIVING VENUE LEVEL TRANSMISSIONS AND SERVICES - A venue-cast system and method for providing and receiving venue level transmissions and services, including discovery of a venue specific transmission by receiving an overhead signal from a non-venue network, extracting information for receiving the venue specific transmission from the overhead signal, and tuning to receive the venue specific transmission based on the extracted information. The venue level transmission may be provided and received in a manner that does not prevent an access terminal from receiving a local area or wide area transmission. | 08-07-2014 |
20140248870 | MOBILE DEVICES WITH FEMTO CELL FUNCTIONALITY - Aspects describe communications environments in which femtocell capability is provided to devices within the communications network. A non-femto enabled device and/or a femto enabled device can communicate with a femto enabled device in the same geographical area for femto-enabled peer-to-peer communication. Two non-femto enabled devices can be provided femto functionality through utilization of a femto enabled device, which operates as a hub between the two devices. Other aspects relate to enhanced position determination, adaptive coverage enhancement, local mobile networks, open access femtocells without a backhaul, and local broadcast of media though utilization of femto enabled devices. | 09-04-2014 |