Amazon Technologies, Inc.

Qualcomm Incorporated

Yi Zhu

Andrew David Price

Kiran Kumar Edara

Varadarajan Gopalakrishnan

Sheung Mei Chan

Lori Yoshida

Xi Chelsea Chen

Shih-Chun Chang

Zhanfeng Jia

David George Butler

Arvind Thiagarajan

Anand Rajagopalan

Subram Narasimhan

Kaixiang Hu

Richard William Mincher

Jin Guo

Arunkumar Jayaraman

Matthew Daniel Smith

Vinod Nagarajan

Zhen Xie

Shrinivas Mohan

Sandip Homchaudhuri

Varadaranjan Gopalakrishnan

A mesh network device includes a content repository including a first section to store original data and a second section to store cached data, and an application processor including a user space, kernel space, and an on-path data caching engine. The on-path data caching engine is to receive, from a second mesh network device, data frames via a data link layer of a TCP/IP mesh network. The data frames include audio or video content. The on-path data caching engine is further to store the data frames in a socket kernel buffer, determine that a third mesh network device is a destination for the data frames, and forward the data frames to the third mesh network device. The on-path data caching engine is to determine that the audio or video content is to be cached and asynchronously copy the audio or video content to the second section of the content repository.

On-path data caching in a mesh network

Network hardware devices organized in a wireless mesh network (WMN) in which one mesh network device includes a first radio and one or more additional radios coupled to an application processor. The application processor receives a request to stream content data to a client consumption device, via the first radio, and receives portions of the content data from multiple devices at different retrieval rates via the one or more additional radios. The application processor calculates an average retrieval rate for retrieving the first segments and the second segments, determines a desired streaming bitrate value, and determines an end time to complete transmission of a first portion to the client consumption device. The application processor transmits, via the first radio, the first portion such that at least one byte of the first portion is transmitted at the end time to complete transmission of the first portion.

Server-side rate control for adaptive bitrate streaming protocols

A mesh network device includes a radio and an application processor including a hop-aware multicast engine to: determine a mesh header time to live (TTL) value for a broadcast frame in a data link layer. The mesh header TTL value is the lessor of an internet protocol (IP) header TTL value of the first broadcast frame in an IP layer and a predefined value. The broadcast frame includes a request for a service or a resource to be sent. The hop-aware multicast engine sends the broadcast frame to a first set of mesh network devices being defined by the mesh header TTL value. The hop-aware multi-case engine determines that a response was not received within a time period; increases the mesh header TTL value; and sends a broadcast frame to a second set of one or more additional mesh network devices being defined by the increased mesh header TTL value.

Hop-aware multicast in a mesh network

Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes a first radio and a second radio coupled to a processing device. The processing device receives a request from a client consumption device via the first radio and determines a destination for the request as a second mesh network device. The processing device access a master routing table to determine that the second radio is to forward the request and forwards the request to the second radio. The second radio accesses a local routing table at the second radio to determine that a radio of a third mesh network device is a next-hop mesh network device in a first path to the second mesh network device. The second radio sends the request to the radio of the third mesh network device.

Software interface layer of a mesh network device

Network hardware devices organized in a wireless mesh network (WMN) in which one network hardware devices includes multiple radios. A processing device of a first network hardware device scans a channel of the first radio for access point (AP) beacon frames that each contains information identifying a mesh network device in a WMN. The processing device creates a list of a plurality of mesh network device from the AP beacon frames and transmits a location probe transmission by each of the plurality of radios one sector at a time in a neighbor discovery process. The processing device receives metrics of the location probe transmissions received by the plurality of mesh network devices in the neighbor discovery process and configures each of the plurality of radios to communicate with one of a set of neighbor mesh network devices using the metrics in a neighbor selection process.

Neighbor discovery and neighbor selection of mesh network devices in a mesh network

A first device is activated and transmits wireless beacon frames. The first device acts as an access point to a temporary wireless network, while the beacon frame invites a second device to connect thereto. The beacon frame may be sent at various rates or intervals in the interest of expeditious discovery or contact, conservation of battery-based energy resources, or according to other goals. The second device may respond to the beacon, and accepted by the first device for connection to the temporary wireless network. The second device may then provide network access credentials corresponding to an established network. The first device may then switch to a station mode and connects to the established wireless network by way established corresponding wireless access point. The temporary wireless network may be terminated after the first device successfully connects to the established wireless network.

Adaptive beacon rate system

Devices, systems and methods are disclosed for enabling a device to act as a wireless extender and adaptively control a transmission power for capability messages. For example, when the device has the capability to relay traffic without affecting a local processing of the device, the device may transmit capability messages at a normal transmission power and may relay traffic between a network device and clients. However, when the device no longer has the capability to relay traffic without affecting the local processing, the device may transmit capability messages at a reduced transmission power. As clients use the capability messages to determine a signal strength of an access point, the reduced transmission power results in the device appearing to have a lower signal strength and thus decreases a desirability of the device as an access point.

Adaptive wireless repeater for network extension

A system and method for controlling access to digital content based on proximity and location of a user device. A user device connects to a local network and an audio transmission including a perpetually rolling key is transmitted within a geo-fence in the local area. The user device hears the audio transmission and uses the key to authenticate to a content server over the network. Once authenticated, the user device may then stream content from the content server. In order to terminate access to the content when the user device leaves the geo-fence, the content server may require the key to be retransmitted from the user device at regular intervals to re-authenticate the user device. Other factors such as radio fingerprints from the user device may also be used instead of or in addition to the audio to verify the user device's presence within the geo-fence.

Dynamic location based content rights management

Systems and methods for broadcasting messages carried on one or more beacon signals are disclosed. A message sharing device may identify a message to be broadcast and may transmit the message to a base station to generate a beacon signal or generate the beacon signal itself based at least in part on the message. The beacon signal may include an indication that the beacon signal carries a message. The beacon signal may be broadcast and may be received by one or more message receiving devices. In some cases, the message may include a link to content accessible via one or more networks, such as the Internet.

Systems and methods for message sharing

Systems and methods are disclosed to provide a bridge for a wireless distribution system compatible with legacy equipment, including the use of a bridge device having two WLAN modules, with the first WLAN module associating with one or more stations and the second WLAN module configured to associating with a legacy access point. Frames received by the first WLAN module are forwarded to the second WLAN module for transmission and frames received by the second WLAN module are forwarded to the first WLAN module for transmission on the basis of address information in the frames.

System and method for universal wireless distribution

Systems and methods are disclosed to improve performance of a communications device receiving encrypted communications from multiple sources. The communications device is configured to increase the amount of decryption performed using a hardware-based process as compared to a software-based process by reprogramming the hardware to store a shared security key corresponding to a frame received from a source, allowing the hardware-based process to decrypt subsequent frames from that source.

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San Jose, CA, United States of America

Yi Zhu