Empire Technology Development LLC

Mung Chiang

A hierarchical wireless network is provided with a mesh backbone network portion and a switching tree network portion. The mesh backbone network portion includes first tier nodes each having at least one wireless link to another first tier node. The first tier nodes execute a link-state protocol for routing packets. The switching tree network portion includes second tier nodes each having a single wireless link to one first tier node and at least one wireless link to one third tier node, and third tier nodes each having a single wireless link to one second tier node. The second tier and the third tier nodes execute switching rules for switching packets.

Wireless home network routing protocol

Embodiments of the disclosure set forth methods for sharing data in a wireless network. Some example methods include storing in a database a content related information associated with a first mobile device, receiving a request for the content related information from a second mobile device, searching the database for the content related information, and transmitting a search result to the second mobile device to enable the transfer of content between the first mobile device and the second mobile device.

Mobile peer-to-peer content sharing method and system

One embodiment of the disclosure sets for an example method to create a network of devices. The method includes requesting location information from a first mobile device within the wireless range covered by a stationary device, receiving the location information of the first mobile device, determining whether the distance between the first mobile device and a second mobile device is less than a value, and sending an instruction to the first mobile device to become a part of a communication network such that the first mobile device can send data directly to the second mobile device without involving the stationary device.

Interactions among mobile devices in a wireless network

Embodiment of the disclosure set forth methods for sharing data in a wireless network. Some example methods include storing in a database a content related information associated with a first mobile device, receiving a request for the content related information from a second mobile device, searching the database for the content related information, and transmitting a search result to the second mobile device to enable the transfer of content between the first mobile device and the second mobile device.

An example method for a device to implement one of the nodes in a wireless network for processing packets includes submitting a request to a network-management system in the network to become a node in the network, after having registered with the network-management system, determining neighboring nodes, flooding the wireless network with a link-state advertisement, the link-state advertisement providing neighboring relationships of the node, constructing switching rules for the node based on a tree switching network portion of the network, processing the packets received by the node with the switching rules, the switching rules defining at least one of (1) an ingress link to a parent node with a power capability greater than the node and (2) egress links to child nodes with a mobility greater than the node, and in response to having determined a failed link to a neighboring node, informing a node at the end of an ingress wireless link and the network-management system of the failed link.

One embodiment of the disclosure sets for a method for synchronizing multiple mobile devices in a wireless network, which includes the steps of calculating a time interval for a first mobile device to respond to a request, receiving timing information of the first mobile device, determining a first offset associated with the first mobile device based on the time interval and the timing information, receiving a first data stream including the timing information of the first mobile device, and inserting a first dataset into the first data stream based on the first offset before transmitting the first data stream.

Techniques for a node in a wireless network to process packets are disclosed. An example method includes registering with a network-management system in the network to become a node in the network, determining neighboring nodes, sending a link-state advertisement to the network-management system, the link-state packets providing its neighboring relationships, processing the packets using switching rules for a tree switching network portion of the network, the switching rules defining at least one of (1) an ingress link to a parent node and (2) egress links to child nodes, determining if a wireless link to a neighboring node has failed, and when a wireless link to a neighboring node has failed, informing a node at the end of an ingress wireless link and the network-management system of the failed link.

Methods are generally described for distributing and storing contents over a wireless network in a home or another similar environment. A storage device may be configured to automatically download content using broadband communications. A wireless device may establish communication with the storage device when within range for wireless communications. The established communications with the storage device may be a direct wireless communication link or an indirect communication link through other networking devices. The wireless device may download contents from the storage device during an idle time when the wireless device has sufficient power available. Downloaded content may be manually or automatically selected. Downloading may be handed off from one storage device to another storage device that has greater wireless signal strength. Downloading may be multicast from a network device to both the wireless device and the storage device.

Broadband extension for content delivery

An extension to TCP is generally provided that allows TCP to handle heterogeneous applications, especially those with delay and smoothness-sensitive contents, and wireless transmission media having noisy, fading radio channels. The TCP extension decouples reliability control from rate control, sacrificing reliability for delay control (transmission rate and retransmission decision) that may be suitable for delay and smoothness-sensitive contents. Furthermore, the TCP extension may select TCP variants and modifications to the TCP variants based on one or more of application needs, channel conditions, or local observables such as loss and delay to better adapt to different types of applications and physical layers.

TCP extension and variants for handling heterogeneous applications

Techniques for a node in a wireless network to process packets are disclosed. An example method includes registering with a network-management system in the network to become a node in the network, determining neighboring nodes, measuring costs of wireless links to its neighboring nodes, measuring radio characteristic levels of the wireless links to its neighboring nodes, sending a link-state advertisement to the network-management system, the link-state packets providing its neighboring relationships and the costs of the wireless links to its neighboring nodes, receiving link weights from the network-management system, computing a routing table for a link-state routing protocol based on (1) the sum of the link weights and the radio characteristic levels for the corresponding wireless links to its neighboring nodes, and (2) a topology of the network, and processing the packets using the routing table.

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Cherry Hill, NJ, United States of America

Mung Chiang