| Patent application number | Description | Published |
|---|
| 20080274760 | POWER MANAGEMENT AND DISTRIBUTED SCHEDULING FOR UPLINK TRANSMISSIONS IN WIRELESS SYSTEMS - To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated. A mobile's throughput requirement, the throughput already received over a specified past duration, the system fairness requirement, as well as the amount of data available for transmission are also used for evaluating the priority index. | 11-06-2008 |
| 20090022098 | MULTIPLEXING SCHEMES FOR OFDMA - Methods and systems are provided for allocating resources including VoIP (voice over Internet Protocol) and Non-VoIP resources. In some embodiments, multiplexing schemes are provided for use with OFDMA (orthogonal frequency division multiplexing access) systems, for example for use in transmitting VoIP traffic, in some embodiments, various HARQ (Hybrid Automatic request) techniques are provided for use with OFDMA systems. In various embodiments, there are provided methods and systems for dealing with issuea such as Handling non-full rate vocoder frames, VoIP packet jitter handling, VoIP capacity increasing schemes, persistent and non-persistent assignment of resources in OFDMA systems. | 01-22-2009 |
| 20090221325 | SYSTEM AND METHOD FOR PEER-TO-PEER COMMUNICATION IN CELLULAR SYSTEMS - Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication. | 09-03-2009 |
| 20100216499 | POWER MANAGEMENT AND DISTRIBUTED SCHEDULING FOR UPLINK TRANSMISSIONS IN WIRELESS SYSTEMS - To schedule uplink transmission time slots for a collection of mobile communication devices, a set of base station target interference patterns is associated with base stations. A time slot target interference pattern is assigned for each time slot and it repeats after several time slots. The time slot target interference pattern in a given time slot specifies the interference allowed by each time slot to a given base station by any single mobile. A priority index may be determined for each time slot for each mobile associated with the particular base station. The priority index may be based, in part, on a determined correlation between the time-slot target interference patterns and a potential interference profile of a mobile to which a time slot is to be allocated. A mobile's throughput requirement, the throughput already received over a specified past duration, the system fairness requirement, as well as the amount of data available for transmission are also used for evaluating the priority index. | 08-26-2010 |
| 20100278123 | WIRELESS COMMUNICATION FRAME STRUCTURE AND APPARATUS - A method comprises providing a frame, the frame including a downlink sub-frame and an uplink sub-frame, portions of the downlink sub-frame and uplink sub-frame being allocated for communication with a mobile station configured to operate utilizing a legacy IEEE 802.16 standard, and portions of the downlink sub-frame and uplink sub-frame being allocated for communication with a mobile station configured to operate utilizing the IEEE 802.16m standard; and using the frame to wirelessly communicate with a mobile station in at least one of the uplink and downlink directions. A method of using an 802.16m frame structure for multi-band operation is also provided, as well as an 802.16m frame structure for relay support. | 11-04-2010 |
| 20110013678 | METHOD AND SYSTEM FOR DIVERSITY USING ORTHOGONAL FREQUENCY/DIVISION MULTIPLEXING - A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques. | 01-20-2011 |
| 20110090850 | System and Method for Adaptive Frame Size Management in a Wireless Multihop Network - A system and method for adaptively managing frame size in a wireless multihop network is disclosed. In one embodiment, a packet is transmitted from a source to a destination. A acknowledgement packet is received and a successful acknowledgement packet counter is incremented if the acknowledgement packet arrives prior to a time-out of a timer. A frame size is increased if the successful acknowledgement packet counter reaches a specified value. If the acknowledgement packet arrives after the time-out of the timer, the successful acknowledgement packet counter is reset and the frame size is decreased. These procedures can be repeated until the frame size is greater than or equal to a maximum frame size or less than or equal to a minimum frame size. | 04-21-2011 |
| 20110201374 | SYSTEM AND METHOD FOR PEER-TO-PEER COMMUNICATION IN CELLULAR SYSTEMS - Systems and methods are provided for delivering both PMP communications, for example standard cellular communications via a base station, and also delivering P2P communications, for example, communications between two mobile stations, using the same spectral resources for both types of communication. | 08-18-2011 |
