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851 results about "Bandwidth allocation" patented technology

Bandwidth allocation is the process of assigning radio frequencies to different applications. The radio spectrum is a finite resource, which means there is great need for an effective allocation process. In the United States, the Federal Communications Commission or FCC has the responsibility of allocating discrete portions of the spectrum, or bands, to various industries. The FCC did this recently, when it shifted the location of television broadcasting on the spectrum in order to open up more space for mobile data. Different bands of spectrum are able to transmit more data than others, and some bands of the spectrum transmit a clearer signal than others. Bands that are particularly fast or that have long range are of critical importance for companies that intend to operate a business involving wireless communications.

Apparatus and methods for dynamic bandwidth allocation

A system capable of dynamically reserving bandwidth and adjusting bandwidth reservations for active sessions of data communication in a data communications device is provided. The system generally separates the operation of bandwidth allocation and adjustment from the operation of data transport through the device, thereby allowing bandwidth reservations and adjustments to be made without disturbing sessions of data communication that are actively being transported through the device. The system can accept requests to allocate or reserve bandwidth in a data communications device using bandwidth reservation protocols such as RSVP. The reservation requests create sender state data that can be used to compute resource allocation data. The resource allocation data can be used to label data storage locations in a data storage mechanism according to the required bandwidth reservations. A data scheduling apparatus, which is ignorant of particular sessions and specific amounts of reserved bandwidth, examines data and deposits data into data storage locations having a label corresponding to a session identification specified in the data, if any. If an unknown or no session identification is specified in the data, the data scheduler deposits data into a data storage location that is unlabeled or that has an unreserved label. Thus session bandwidth is determined by the percentage of labeled data storage locations for the session. Changes in bandwidth reservations are reflected in the separate operation of alterations made in the data storage labeling scheme, and do not affect the data scheduler, or data dequeuing mechanisms, thus allowing data sessions to continue without interruption during bandwidth adjustments.
Owner:CISCO TECH INC

Apparatus and method for efficient TDMA bandwidth allocation for TCP/IP satellite-based networks

InactiveUS20050030932A1Optimized bandwidth allocation schemeBalance traffic loadError preventionFrequency-division multiplex detailsCommunications systemAloha
A communication system balances message traffic between return channel groups and within the groups, so that the user does not control the specific transmission frequency used. Uplink frequencies and bandwidths for the return channels are set by the system in a return channel control message in the broadcast signal so as to account for system and return channel group loading, and to account for user message backlogs. An initial transmission from a remote user may be made using an ALOHA-type burst signal that provides a message backlog to the control station, and is made on a frequency determined from a randomly weighted, load-based frequency selection process. The system, and not the individual users determine the frequency and channel allocations. For large backlogs or priority users, periodic bandwidth is provided. A method for balancing loads among and between groups of return channels in the communication system includes requesting return channel bandwidth in an uplink message from a remote user to a control station. The uplink message may include a both a backlog indicator and a bandwidth allocation request provided to a Network Operations Center (NOC) which can be used to set the return channel bandwidth and frequency for the remote uplink. A user message is transmitted on the designated return channel frequency using bandwidth allocated in accordance with the backlog indicator and a bandwidth allocation request so that traffic loads are maintained in balance between established return channel frequency groups, and within each return channel frequency group.
Owner:HUGHES NETWORK SYST

Channel configuration and bandwidth allocation in multi-hop cellular communication networks

A multi-hop wireless communication network is disclosed, which includes a fixed communication unit, at least one mobile communication unit, and a relay communication unit. The relay communication unit is operable to relay a plurality of signals bi-directionally between the fixed communication unit and the at least one mobile communuication unit, by receiving a first signal on at least one of a dedicated sub-carrier and a dynamic sub-carrier in a first downlink channel segment from the fixed communication unit, and transmitting the received first signal to the at least one mobile communication unit on a dynamic sub-carrier in a second downlink channel segment. Also, the relay communication unit is operable to receive a second signal on a dynamic sub-carrier in a first uplink channel segment from the at least one mobile communication unit, and transmit the received second signal to the fixed communication unit on at least one of a dedicated sub-carrier and a dynamic sub-carrier in a second uplink channel segment. Also, the fixed communication unit can allocate bandwidth dynamically or in a fixed amount in the first downlink channel segment, the relay communication unit can allocate bandwidth dynamically in the second downlink channel segment based on at least one Quality of Service value received from the at least one mobile communication unit, the relay communication unit can allocate bandwidth dynamically for the at least one mobile communication unit in the first uplink channel segment, and the fixed communication unit can allocate bandwidth dynamically or in a fixed amount for the relay communication unit in the second uplink channel segment.
Owner:SAMSUNG ELECTRONICS CO LTD

Policy based quality of service

A flexible, policy-based, mechanism for managing, monitoring, and prioritizing traffic within a network and allocating bandwidth to achieve true quality of service (QoS) is provided. According to one aspect of the present invention, a method is provided for managing bandwidth allocation in a network that employs a non-deterministic access protocol, such as an Ethernet network. A packet forwarding device receives information indicative of a set of traffic groups, such as: a MAC address, or IEEE 802.1p priority indicator or 802.1Q frame tag, if the QoS policy is based upon individual station applications; or a physical port if the QoS policy is based purely upon topology. The packet forwarding device additionally receives bandwidth parameters corresponding to the traffic groups. After receiving a packet associated with one of the traffic groups on a first port, the packet forwarding device schedules the packet for transmission from a second port based upon bandwidth parameters corresponding to the traffic group with which the packet is associated. According to another aspect of the present invention, a method is provided for managing bandwidth allocation in a packet forwarding device. The packet forwarding device receives information indicative of a set of traffic groups. The packet forwarding device additionally receives information defining a QoS policy for the traffic groups. After a packet is received by the packet forwarding device, a traffic group with which the packet is associated is identified. Subsequently, rather than relying on an end-to-end signaling protocol for scheduling, the packet is scheduled for transmission based upon the QoS policy for the identified traffic group.
Owner:ARISTA NETWORKS
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