Patent application number | Description | Published |
20090116390 | SCHEDULING BEST EFFORT FLOWS IN BROADBAND WIRELESS NETWORKS - Systems and methodologies are described that facilitate scheduling best effort flows in broadband or wideband wireless communication networks. The systems can include devices and/or component that effectuate associating utility functions to multiple disparate flows based on traffic conditions extant in the wireless system, ascertaining the average rate at which the flow has been serviced in the past, and utilizing the utility function associated with the flow or the average rate that the flow has been serviced in the past to optimally schedule the flow. | 05-07-2009 |
20090116438 | DIVISION OF THE SCHEDULING ALGORITHM INTO BACKGROUND AND FOREGROUND ALGORITHMS - Systems and methodologies are described that facilitate dividing scheduling algorithms into background and foreground aspects capable of simultaneously servicing a multiplicity of disparate flows in wideband communications networks. The systems provided herein arbitrarily select prospective time horizons, generate optimal bandwidth allocation targets based on a plurality of flows observed by the system, and utilizes the optimal bandwidth targets to assign flows to users over the entirety of the prospective time horizon. | 05-07-2009 |
20090116439 | SCHEDULING A MIX OF BEST EFFORT (BE) AND DELAY QOS FLOWS - Systems and methodologies are described that facilitate dynamically adjusting scheduling priorities in relation to a combination of delay sensitive flows with delay requirements and best effort flows. The systems and methodologies provide optimal and efficient techniques to enable real time adjustment and assignment of bandwidth for a combination of best effort flows and delay sensitive flows. In particular, the bandwidth allocation is adjusted for each data packet such that delay requirements are met and the remaining bandwidth can be assigned to best effort flows. | 05-07-2009 |
20100202289 | METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate interference control and resource management in a wireless communication system. As described herein, a base station, terminal, and/or other entity in a wireless communication system that observes interference from one or more other network entities can construct and communicate resource utilization messages (RUMs) in order to request the interfering network entities to conduct power backoff on designated resources. Parameters constructed as a function of quality of service (QoS) and/or priority metrics (such as head-of-line delays, queue lengths, burst sizes, delay targets, average rates, or the like) can be included within the RUM, such that an entity receiving the RUM can compute QoS changes associated with various power backoff levels in order to select a power backoff level that maximizes overall system QoS performance. | 08-12-2010 |
20100202388 | OVER-THE-AIR ENHANCEMENT FOR BACKHAUL DYNAMIC INTERFERENCE MANAGEMENT IN WIRELESS NETWORKS - Techniques for allocation resources in a wireless communications network are provided. | 08-12-2010 |
20100203913 | METHOD FOR MANAGING SUB-BAND PREFERENCE ORDER IN A WIRELESS COMMUNICATION SYSTEM - Techniques for allocating resources in a wireless communications network are provided. According to certain aspects, a scheme is provided, wherein resources of sub-bands associated with non-interfering links are allocated before resources of sub-bands associated with interfering links. | 08-12-2010 |
20100296405 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT ON UPLINK CHANNELS IN WIRELESS COMMUNICATION SYSTEMS - Systems, methods, apparatus and computer program products for facilitating interference management on an uplink in a wireless communication system are provided. In one embodiment, a method can include: determining channel gain information measured on a downlink, wherein the determining is performed by a base station; determining interference from one or more interfering user equipment based on the channel gain information for the uplink; and calculating a nominal interference based on the interference from the one or more interfering user equipment. | 11-25-2010 |
20100298016 | SYSTEMS, APPARATUS AND METHODS FOR INTERFERENCE MANAGEMENT ON DOWNLINK CHANNELS IN WIRELESS COMMUNICATION SYSTEMS - Systems, methods, apparatus and computer program products to facilitate determining nominal interference from one or more interfering base stations are provided. In one embodiment, the method can include computing a nominal interference. The method can also include transmitting the nominal interference to one or more interfering base stations. The nominal interference can be transmitted to at least one of the one or more interfering base stations to compute a loss in transmission rate to a user equipment in a selected cell if at least one of the one or more interfering base stations transmits over a same set of resources on which the user equipment in the selected cell receives information. | 11-25-2010 |
20100329113 | METHOD AND APPARATUS FOR INTERFERENCE MANAGEMENT IN A WIRELESS COMMUNICATION SYSTEM - Systems and methodologies are described herein that facilitate interference control and resource management in a wireless communication system. As described herein, a base station, terminal, and/or other entity in a wireless communication system that observes interference from one or more other network entities can construct and communicate resource utilization messages (RUMs) in order to request the interfering network entities to conduct power backoff on designated resources. Parameters constructed as a function of quality of service (QoS) and/or priority metrics (such as head-of-line delays, queue lengths, burst sizes, delay targets, average rates, or the like) can be included within the RUM, such that an entity receiving the RUM can compute QoS changes associated with various power backoff levels in order to select a power backoff level that maximizes overall system QoS performance. | 12-30-2010 |
20100329198 | SYSTEMS, APPARATUS AND METHODS FOR CONFIGURATION OF SCHEDULING POLICY TO FACILITATE DISTRIBUTED SCHEDULING - Systems, apparatus, methods and computer program products are provided. In some embodiments, a method for configuration of scheduling policy to facilitate distributed scheduling is provided. The method can include receiving configuration information for configuring the scheduling policy for traffic. The scheduling policy can be configured according to a provisioned priority function. The configuration information can be received at a plurality of base stations in a respective plurality of different cells for provisioning a priority function at the plurality of base stations. | 12-30-2010 |
20110103395 | COMPUTING THE BURST SIZE FOR A HIGH SPEED PACKET DATA NETWORKS WITH MULTIPLE QUEUES - A communications method is provided. The method includes processing multiple packet queues for a high speed packet data network and associating one or more arrays for the multiple packet queues. The method also includes generating an index for the arrays, where the index is associated with a time stamp in order to determine a burst size for the high speed packet data network. | 05-05-2011 |
20110128870 | DISTRIBUTED COMPUTATION OF COMMON NORMALIZATION CONSTANT FOR QUANTIZED BEST EFFORT TRAFFIC PRIORITY - Apparatus, systems, devices and methods are provided for Distributed Computation of Common Normalization Constant for Quantized Best Effort Traffic Priority. In certain non-limiting aspects, there may be provided a method for prioritizing traffic in a wireless communication environment, including: providing a quantized priority value for each of one or more data streams associated with a wireless communications node; and determining a relative prioritization for each of the one or more data streams using the quantized priority values and one or more quantized priority values associated with one or more other wireless communications nodes; wherein, the quantized priority values associated with the wireless and other wireless communications nodes are normalized with respect to a reference rate. | 06-02-2011 |
20110128921 | UTILITY MAXIMIZATION SCHEDULER FOR BROADBAND WIRELESS COMMUNICATION SYSTEMS - Certain aspects of the present disclosure relate to a technique of designing a Media Access Control (MAC) scheduler for uplink communication in high rate wireless data systems, such as Long Term Evolution (LTE) wireless communication systems. | 06-02-2011 |
20110130098 | SYSTEMS, APPARATUS AND METHODS FOR DISTRIBUTED SCHEDULING TO FACILITATE INTERFERENCE MANAGEMENT - Systems, methods, apparatus and computer program products for facilitating interference management on a downlink of a wireless communication system are provided. In some embodiments, the method can include determining, by a base station within a cell, a benefit to out-of-cell user equipment when a base station transmits with certain transmission attributes, wherein the transmission attributes are at least one of a transmit power, beamforming vector or multiple input multiple output transmission; determining, by the base station, a benefit to a user equipment within the cell when the base station transmits with certain transmission attributes; and determining, by the base station, the total benefit to the out-of-cell user equipment and to the user equipment within the cell. | 06-02-2011 |
20110130099 | SYSTEMS, APPARATUS AND METHODS FOR DISTRIBUTED SCHEDULING TO FACILITATE INTERFERENCE MANAGEMENT - Systems, methods, apparatus and computer program products for scheduling in a wireless communication system are provided. In some embodiments, the method can include: receiving a buffer status report from user equipment having one or more logical channel groups; configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups, wherein the configuring a first priority metric and a first prioritized bit rate for at least one of the one or more logical channel groups is in response to information included in the buffer status report; determining interference at the user equipment; and re-configuring, by the serving base station, the first priority metric and the first prioritized bit rate for the at least one of the one or more logical channel groups in response to determining interference at the user equipment. | 06-02-2011 |
20120099449 | SPATIAL RESUSE IN A WIRELESS NETWORK - In a first method, a first apparatus determines a channel gain to a second apparatus with which the first apparatus is communicating. The first apparatus determines interferer backoff information that ensures an interference level at the first apparatus such that a signal received from the second apparatus can be decoded reliably. The interferer backoff information is determined based on the channel gain. The first apparatus transmits information based on the interferer backoff information in a message to the second apparatus. In a second method, a first apparatus in communication with a second apparatus determines a channel gain to a third apparatus with which the first apparatus can potentially interfere. The first apparatus receives a message from the third apparatus. The message includes interferer backoff information. The first apparatus determines a power for transmitting a signal to the second apparatus based on the interferer backoff information and the channel gain. | 04-26-2012 |
20120099450 | SPATIAL REUSE IN A WIRELESS NETWORK - A method, an apparatus, and a computer program product are provided. The apparatus determines a channel gain to a second wireless device with which the first wireless device is communicating. In addition, the apparatus determines interferer backoff information that ensures an interference level at the first wireless device such that a signal received from the second wireless device can be decoded reliably. The interferer backoff information is determined based on the channel gain. Furthermore, the apparatus transmits information based on the interferer backoff information in one of an RTS message or a CTS message to the second wireless device. | 04-26-2012 |
20120147759 | APPARATUS AND METHODS FOR PROVIDING A COMMUNICATION QUALITY FEEDBACK OF AN END-TO-END COMMUNICATION PATH - The apparatus and methods described herein are used to provide a communication quality feedback of an end-to-end communication path between an application transmitter and an application receiver. One method includes transmitting data from the application transmitter to the application receiver via the end-to-end communication path, the end-to-end communication path having at least one wireless link with a wireless transmitter and a wireless receiver, generating, at the wireless transmitter, a first communication quality feedback message, and transmitting the first communication quality feedback message from the wireless transmitter to the application transmitter in a standardized format. | 06-14-2012 |
20120147936 | UNIVERSAL REAL-TIME INTERFACE FOR WIRELESS MODEMS - The apparatus and methods described herein are used to provide data between an application and a modem. One method includes providing data in application data units from the application to the modem, transmitting the data from the modem to a receiver, and reporting by the modem to the application, whether each application data unit has been successfully transmitted from the modem to the receiver. | 06-14-2012 |
20130272285 | INTERFERENCE MANAGEMENT AND NETWORK PERFORMANCE OPTIMIZATION IN DENSE WIFI NETWORKS - A method of managing Wi-Fi access points using a Wi-Fi network manager is disclosed. Measurement data is received from a plurality of Wi-Fi access points via a control interface. Optimized adjustments to one or more Wi-Fi parameters associated with one or more of the plurality of access points are searched based at least in part on a set of network optimization goals and the measurement data received from the plurality of access points. At least some of the optimized adjustments to the one or more Wi-Fi parameters are transmitted to the one or more of the plurality of access points using the control interface. | 10-17-2013 |
20130281089 | INTERFERENCE MANAGEMENT AND NETWORK PERFORMANCE OPTIMIZATION IN SMALL CELLS - A method of configuring small cell base stations in a cellular network is disclosed. A constraint on a performance-related metric associated with at least a portion of the cellular network is received. In some embodiments, the constraint on the performance-related metric comprises a constraint on a performance-related metric associated with one or more macrocells. Measurement data from one or more small cell base stations is received via a control interface. One or more optimized values of one or more parameters associated with one or more small cell base stations are searched. The searching is based at least in part on the received measurement data and subject to the constraint on the performance-related metric associated with the at least a portion of the cellular network. The one or more optimized values of the one or more parameters to the associated small cell base stations are transmitted. | 10-24-2013 |
20130308549 | METHODS AND APPARATUS FOR PEER-TO-PEER COMMUNICATIONS RESOURCE SCHEDULING - A wireless communications device supporting peer-to-peer communications acquires peer-to-peer communications resources for an extended period of time. In some embodiments, a base station assigns the resources to the device, while in other embodiments, the device reserves, e.g., self-assigns peer-to-peer communications resources for an extended period of time. The wireless communications device decides that it will not be using an acquired peer-to-peer communications resources, e.g., a particular acquired peer-to-peer traffic segment. The wireless communications device transmits a resource availability indicator indicating that it will not be using the particular peer-to-peer communications resource. Another wireless communications device, which detects the resource availability indicator, may use the peer-to-peer communications resource which is not be used by the device to which it is assigned. | 11-21-2013 |
20130308551 | METHODS AND APPARATUS FOR DETERMINING AVAILABLE RESOURCES FOR D2D COMMUNICATIONS - A method, an apparatus, and a computer program product for wireless communication are provided in which a first eNB may be operable to determine a set of resources to allocate for D2D communications based on one or more network factors and transmit the set of resources allocated for D2D communications. A first UE may receive the set of resources allocated for D2D communications. A second UE may inform the first UE of a set of resources allocated for D2D communications by a second eNB. The first UE may determine a subset of resources to use for D2D communications with a second UE based on one or more D2D resource determination schemes, and may signal the determined subset to the first eNB. The first eNB may receive the subset of resources and transmit a control signal indicating that the subset of resources has been allocated for D2D communications. | 11-21-2013 |
20130308552 | METHODS AND APPARATUS FOR PROVIDING D2D SYSTEM INFORMATION TO A UE SERVED BY A HOME EVOLVED NODE-B - A method, an apparatus, and a computer program product for wireless communication are provided in which a network entity may be operable to communicate D2D resource allocations to a UE supported by a HeNB. In one example, the network entity may be operable to determine whether a HeNB is operable to communicate system information to a UE. As used herein, system information may include, but is not limited to, D2D resource allocations, paging information, etc. When the network entity determines that a HeNB is operable to communicate system information to a UE, then it may transmit the system information to the HeNB to allow the HeNB to convey the system information to the UE. When the network entity determines that a HeNB is not operable to communicate system information to a UE, then it may transmit the system information to the UE via one or more other network entities. | 11-21-2013 |
20130308598 | METHODS AND APPARATUS FOR SUPPORTING WAN AND D2D COMMUNICATION RLC LAYER HANDOVER - A method, an apparatus, and a computer program product for supporting RLC layer handover between WAN supported D2D communications and direct D2D communications. In one example, a first UE may be operable to transmit a WAN handover request including a peer identifier and a cell identifier associated with a second UE to an eNB, where the first UE and the second UE are engaged in direct D2D communications. The eNB may be equipped to communicate the WAN handover request to a second eNB associated with the second UE and receive a RLC parameter indicating a last successful reception by the second UE. The eNB may transmit the RLC parameter to the first UE. The first UE may be equipped to determine a subsequent content item based on the received RLC parameter and may transmit the subsequent content item to the second UE via the eNB. | 11-21-2013 |
20130310103 | METHODS AND APPARATUS FOR PROVIDING TRANSMIT POWER CONTROL FOR DEVICES ENGAGED IN D2D COMMUNICATIONS - A method, an apparatus, and a computer program product for wireless communication are provided for using power control to reduce potential interference to a macro eNB by a UE engaged in D2D communications. An eNB may be operable to generate a fractional power control parameter based on a macro eNB power saturation value and broadcast the factional power control parameter. A UE may be equipped to receive the factional power control parameter and determine whether the fractional power control parameter plus a path loss value between the UE and the macro eNB is less than a maximum power used for the D2D communications. The UE may reduce the maximum transmit power used for D2D communications when the fractional power control parameter plus a path loss value between the UE and the macro eNB is less than a maximum power used for the D2D communications. | 11-21-2013 |
20140003301 | METHOD AND APPARATUS USING MODIFIED SUBFRAMES | 01-02-2014 |
20140036691 | GLOBAL AND LOCAL OPTIMIZATION OF WI-FI ACCESS POINTS - A method of managing Wi-Fi access points (APs) includes selecting between a global optimization and a local optimization of AP parameters based at least in part on one or more factors. The method includes causing a global optimization to be performed in the event that a global optimization is selected, the global optimization comprising: searching for adjustments to a first set of AP parameters that optimize an overall performance associated with a global region, the global region including a first set of APs. The method includes causing a local optimization to be performed in the event that a local optimization is selected, the local optimization comprising: searching for adjustments to a second set of AP parameters that optimize an overall performance associated with a localized region, the localized region including a second set of APs, wherein the second set of APs comprises a subset of the first set of APs. | 02-06-2014 |
20140036709 | HIDDEN NODES DETECTION - A method of detecting a hidden node is disclosed. Reports from a plurality of access points (APs) are received. The method includes determining that transmissions from a second AP are not detected by a first AP based on the received report from the first AP. The method includes determining that transmissions from a client associated with the first AP are detected by the second AP based on the received report from the second AP. The method further includes detecting that the second AP is a hidden node, wherein transmissions from the hidden node interfere with transmissions between the client and the first AP, and wherein the detection is based at least in part on the determination that transmissions from the second AP are not detected by the first AP and the determination that transmissions from the client associated with the first AP are detected by the second AP. | 02-06-2014 |
20140036816 | DYNAMIC CHANNEL SELECTION ALGORITHMS FOR INTERFERENCE MANAGEMENT IN WIFI NETWORKS - A method of dynamically adjusting Wi-Fi parameters of a plurality of access points (APs) is disclosed. Reports from the plurality of APs are received through an interface. A conflict graph is created by a processor. Creating the conflict graph includes creating a plurality of vertices of the conflict graph, each vertex corresponding to one of the plurality of APs. Creating the conflict graph further includes determining that there is a conflict between at least some of the pairs of APs based at least in part on the received reports. Creating the conflict graph includes connecting an edge between each of the at least some of the pairs of APs. The conflict graph is stored in a memory. | 02-06-2014 |
20140140222 | METHODS AND APPARATUS FOR ENABLING CID REUSE IN LTE BASED D2D COMMUNICATIONS - A method, an apparatus, and a computer program product for wireless communication are provided in connection with minimizing D2D RTS/CTS signaling overhead resource usage. In one example, a WAN entity is equipped to receive one or more channel gain values from a plurality of UEs, determine that a CID can be reused by multiple D2D links based on the received one or more channel gain values, and transmit information indicating that the CID may be reused. In another example, a UE is equipped to measure a direct power signals and an inverse power echoes on a CID used for a link formed between a third and fourth UE, and determine that the CID may potentially be reused by a link formed with a second UE for D2D RTS/CTS signaling, based at least in part on the measured direct power signals, measured the inverse power echoes, and a SIR threshold. | 05-22-2014 |