Patent application number | Description | Published |
20080205447 | SYSTEMS AND METHODS FOR COMPRESSING PACKET HEADERS - A system processes data units in a network. The system receives a data unit that includes a group of headers and suppresses one or more of the headers to form a reduced data unit. The system suppresses one or more other headers of the reduced data unit to form a further reduced data unit and transmits the further reduced data unit to one or more destination devices using the program identifier (PID) field in the MPEG header as an index to suppressed headers. | 08-28-2008 |
20090016279 | SYSTEMS AND METHODS FOR PROVIDING TIME AND LOCATION DEPENDENT BANDWIDTH IN WIRELESS NETWORKS - Systems and methods are described for allocating bandwidth in a wireless network. Entry of subscriber equipment into a wireless network is detected at a base station which typically provides information used to determine geographic location of the subscriber equipment. Based on the determined location, a level of service is selected from a plurality of service levels available to a subscriber and provided. Location can be determined based on information provided by the subscriber equipment, provided by a global positioning system and/or provided by a user of the subscriber equipment. Location of the subscriber equipment can be identified with an activity of a user of the subscriber equipment, including business and non-commercial activity. Selection of the level of service may be further based upon time of day, day of week or upon a date and time of provision of the level of service. | 01-15-2009 |
20090028083 | CUSTOMER FACING INTERFACE POWER CYCLING OF WIRELESS TERMINALS - Systems and methods are described for configuring customer premises equipment in a wireless network in response to reconnection of subscriber station to a base stations. A set of rules is provided that governs configuration of a network interface based in part on whether the interface connects to a different base station after reconnection. Reconfiguration may be include cycling power of the network interface and the decision to cycle power may be based on network configuration determined after the loss of communication. This decision can be made after the loss of communication and after the network interface is reconnected to the wireless network through the same or a different base station. The rules may be processed by a combination of subscriber equipment, network interface and base station. Power may be cycled responsive to a message transmitted by the one base station to the network interface. | 01-29-2009 |
20090028116 | DYNAMIC VLANS IN WIRELESS NETWORKS - Systems and methods are described for managing a wireless network. Packets addressed to subscriber stations may be assigned a tag based on the base station at which the packet is received and the base station at which the subscriber station first entered the network. The tag can identify a media access address associated with subscriber equipment accessible through the subscriber station and an IP address associated with the subscriber equipment. The tag may be obtained from a table linking each of a plurality of virtual local area networks to one or more subscriber stations previously registered at a network base station. | 01-29-2009 |
20090129286 | REDUCING INTER-SS INTERFERENCE - Certain embodiments are described that enable the provision of enhanced service in wireless networks. Methods for wireless broadband scheduling are described that comprise determining levels of potential interference between subscriber stations located in an area covered by a wireless base station. Communication between the wireless base station and the subscriber stations can be scheduled to minimize interference between the subscriber stations. Scheduling may include ordering the subscriber stations based on the determined levels of potential interference for each station. Such scheduling may result in a list organized in ascending or descending order of potential interference or distance from the base station. Certain of the subscriber stations can be selected to communicate simultaneously based on the ordering. In certain of these embodiments, the ordering can be calculated to reduce mutual interference of the subscriber stations. Determining levels of potential interference can include measuring interference on each subscriber station. | 05-21-2009 |
20090151009 | SYSTEMS AND METHODS FOR END-TO-END RESOURCE RESERVATION AUTHENTICATION - A network device constructs an outgoing resource reservation message and determines an authentication value, using, for example, a cryptographic algorithm and at least a portion of the outgoing message. The network device identifies a destination node for the message and inserts the authentication value in the message. The network device sends the message across a network to the destination node for authentication at the destination node using the authentication value. | 06-11-2009 |
20090180490 | VIRTUAL UPSTREAM CHANNEL SCHEDULING IN BROADBAND COMMUNICATION SYSTEMS - Scheduling virtual upstream channels within one physical upstream channel is disclosed. The MAP messages of the virtual upstream channels that share the same physical upstream channel are synchronized together such that any one transmission opportunity for a given virtual upstream channel does not overlap with transmission opportunities of any other virtual channel. This includes converting all requests for transmission opportunities into a common unit and then scheduling these requests as appropriate. | 07-16-2009 |
20090245132 | DYNAMIC VLAN IP NETWORK ENTRY - Systems and methods for tagging packets in a wireless network are described. The methods can comprise detecting initial entry of subscriber equipment into a wireless network at a first base station and generating a network tag for the subscriber equipment, the network tag associating the subscriber equipment with the first base station. The tag can be distributed to other base stations and, upon reentry of the subscriber equipment to the network, a network connection can be configured for the subscriber equipment based on the tag. Detecting initial entry includes receiving a network entry packet a including a unique identifier associated with the subscriber equipment. The network connection can be configured by providing an IP address assigned to the subscriber equipment and the IP address may be distributed through a relay agent instantiated for the network connection. The network tag can be an IEEE 802.1q tags, MPLS tags, etc. | 10-01-2009 |
20090310582 | Systems and Methods for Distributed Data Routing in a Wireless Network - In various embodiments, the data plane may be abstracted from a control plane in a wireless network such as WiMax, WiFi, LTE or the like. In some embodiments, a routing device comprises a control module, a service module, and a router module. The control module may be configured to receive communication instructions from a control server. The service module may be configured to process the communication instructions and provide data path instructions based on the communication instructions. The router module may be configured to receive data from a source device and route the processed data to a target device based on the data path instructions. The control server may comprise a WiMax server such as an ASN server or a CSN server. | 12-17-2009 |
20100067462 | Systems and Methods for Data Path Control in a Wireless Network - In various embodiments, the data plane may be abstracted from a control plane in a wireless network such as WiMax, WiFi, LTE or the like. In some embodiments, a method comprises a receiving control data at a control server from a source device, generating routing instructions at the control server regarding routing network data based on the control data, providing the routing instructions to a routing device, configuring the routing device based on the routing instructions, receiving network data from the source device, and routing the network data from the source device to a target device using the configured routing device. | 03-18-2010 |
20100128740 | CONTEXT-DEPENDENT SCHEDULING THROUGH THE USE OF ANTICIPATED GRANTS FOR BROADBAND COMMUNICATION SYSTEMS - A method of scheduling upstream bandwidth. This method comprises: 1) anticipating the need for the upstream bandwidth in advance of any specific request for said upstream bandwidth; and 2) scheduling the upstream bandwidth in accordance with such need. | 05-27-2010 |
20100135152 | ORDERED SWITCHOVER OF CABLE MODEMS - A cable modem termination system (CMTS) provides for ordered switchover of the cable modems it serves when a primary module of the CMTS fails. When the primary module in the CMTS fails, a backup module takes over service of the cable modems. The backup module restores the service flows of the cable modems based on a restoration order determined by session recovery priorities that are related to quality of service levels required by the service flows. In particular, service flows that are engaged in VoIP “911” calls are restored first. Service flows engaged in other VoIP calls are next restored. Lastly, service flows engaged in regular data sessions are restored. | 06-03-2010 |
20100158034 | END-POINT AWARE RESOURCE RESERVATION PROTOCOL PROXY - A method performed by a first network device may include receiving a request for a resource from an end-point device and acknowledging the request for the resource to the end-point device. The method may also include receiving a resource coordination message from a second network device and transmitting a return resource coordination message to the second network device. | 06-24-2010 |
20100191840 | SYSTEMS AND METHODS FOR INITIALIZING CABLE MODEMS - A system includes a first device and a second device. The first device is configured to transmit a discover message on a first upstream channel, where the discover message includes information representing capabilities of the first device. The second device is configured to receive the discover message from the first device and determine whether to switch the first device to a second upstream channel based on the capabilities information in the discover message. The second device makes the determination before a registration of the first device. The second device transmits a message to the first device instructing the first device to switch to the second upstream channel based on a result of the determination. | 07-29-2010 |
20100235512 | SYSTEMS AND METHODS FOR SCHEDULING APPLICATIONS - A system allocates resources in a network. The system receives an allocation request for a first flow and a second flow from an application and identifies the application based on the allocation request. The system schedules resources for the first flow based on the identification of the application and the second flow. | 09-16-2010 |
20100238950 | USE OF GROUP POLL SCHEDULING FOR BROADBAND COMMUNICATION SYSTEMS - A group poll mechanism (GPM) that schedules upstream bandwidth for cable modems by pointing a request opportunity normally reserved for a single service flow to more than one service flow. Essentially, instead of using the seldom-used poll requests one per service flow, this same request opportunity is pointed to multiple service flows. In such kind of a scheme the GPM gives the same mini-slot to multiple service flows. The GPM implements the use of place-holder SIDs and novel mapping of information elements in MAP messages. | 09-23-2010 |
20100251317 | SYSTEMS AND METHODS FOR CONNECTING LARGE NUMBERS OF CABLE MODEMS - Identifiers are assigned to devices communicating via a number of virtual channels. If additional identifiers are needed, one or more new virtual channels are created and the identifiers are reused for the new virtual channel. | 09-30-2010 |
20110110372 | SYSTEMS AND METHODS TO PERFORM HYBRID SWITCHING AND ROUTING FUNCTIONS - A system aggregates connections to multiple customer devices. The system receives data, performs switching functions on the data when the data is to be transmitted in a first direction, performs routing functions on the data when the data is to be transmitted in a second direction, and transmits the data in the first or second direction. | 05-12-2011 |
20110182288 | END-POINT AWARE RESOURCE RESERVATION PROTOCOL PROXY - A method performed by a first network device may include receiving a request for a resource from an end-point device and acknowledging the request for the resource to the end-point device. The method may also include receiving a resource coordination message from a second network device and transmitting a return resource coordination message to the second network device. | 07-28-2011 |
20110194508 | VIRTUAL UPSTREAM CHANNEL SCHEDULING IN BROADBAND COMMUNICATION SYSTEMS - Scheduling virtual upstream channels within one physical upstream channel is disclosed. The MAP messages of the virtual upstream channels that share the same physical upstream channel are synchronized together such that any one transmission opportunity for a given virtual upstream channel does not overlap with transmission opportunities of any other virtual channel. This includes converting all requests for tranmission opprotunities into a common unit and then scheduling these requests as appropriate. | 08-11-2011 |
20110206103 | SYSTEMS AND METHODS FOR INCREASING CABLE MODEM SYSTEM BANDWIDTH EFFICIENCY - A cable modem termination system measures signal qualities of upstream transmissions associated with one or more cable modems. The system monitors the measured upstream signal qualities, and selectively commands at least one of the one or more cable modems to switch between upstream channels based on the signal quality monitoring. | 08-25-2011 |
20110222558 | USING DEDICATED UPSTREAM CHANNEL(S) FOR CABLE MODEM INITIALIZATION - A system facilitates initialization of devices in a cable modem network. The system may provide downstream channels for transmitting data to the devices and upstream channels for receiving data from the devices. At least one of the upstream channels may be dedicated to providing initialization opportunities. This dedicated upstream channel(s) includes less than all of the upstream channels. The system may transmit upstream channel identifiers on the downstream channels, where each of the upstream channel identifiers identifies one of the upstream channels. The system receives initialization data on the dedicated upstream channel(s). | 09-15-2011 |
20110222598 | SYSTEMS AND METHODS FOR COMPRESSING PACKET HEADERS - A system processes data units in a network. The system receives a data unit that includes a group of headers and suppresses one or more of the headers to form a reduced data unit. The system suppresses one or more other headers of the reduced data unit to form a further reduced data unit and transmits the further reduced data unit to one or more destination devices using the program identifier (PID) field in the MPEG header as an index to suppressed headers. | 09-15-2011 |
20120236847 | SYSTEMS AND METHODS FOR INITIALIZING CABLE MODEMS - A system includes a first device and a second device. The first device is configured to transmit a discover message on a first upstream channel, where the discover message includes information representing capabilities of the first device. The second device is configured to receive the discover message from the first device and determine whether to switch the first device to a second upstream channel based on the capabilities information in the discover message. The second device makes the determination before a registration of the first device. The second device transmits a message to the first device instructing the first device to switch to the second upstream channel based on a result of the determination. | 09-20-2012 |
20130150070 | Systems and Methods for Providing Time and Location Dependent Bandwidth in Wireless Networks - Systems and methods are described for allocating bandwidth in a wireless network. Entry of subscriber equipment into a wireless network is detected at a base station which typically provides information used to determine geographic location of the subscriber equipment. Based on the determined location, a level of service is selected from a plurality of service levels available to a subscriber and provided. Location can be determined based on information provided by the subscriber equipment, provided by a global positioning system and/or provided by a user of the subscriber equipment. Location of the subscriber equipment can be identified with an activity of a user of the subscriber equipment, including business and non-commercial activity. Selection of the level of service may be further based upon time of day, day of week or upon a date and time of provision of the level of service. | 06-13-2013 |
20130229956 | TDD Sector Control Systems and Methods - Systems and methods are described for controlling transmission in a wireless network. In these systems and methods a sequence of time zones may be provided whereby each time zone can be allocated to one of a plurality of base stations. For each base station dead times in the sequence are identified in which the base station is prohibited from transmitting and receiving. The dead times for the base station may correspond to transmit or receive zones of at least one other base station. The dead times can be interleaved with transmit zones and receive zones assigned to the base station. Configuration and duration of the dead times may be selected to reduce interference between base stations. Base stations can support different wireless transmission systems including OFDM and OFDMA systems and others. | 09-05-2013 |