Broadcom Corporation

Sam Anderson

Xuemin Chen

Gordon Li

Pierre Couilaud

Richard Schwartz

John McQueen

Pierre Couillaud

Dragan Djurovic

Eugene Nechamkin

Jamshid Shoghli

Gordon Yong Li

An IP multimedia gateway (IMG) determines device capabilities and proposed service priority profiles of communicatively coupled client devices. The determined device capabilities and proposed service priority profiles are transmitted to service managers for service scheduling. Device capabilities of the communicatively coupled client devices are configured or prioritized based on available actual service priority profiles from the service managers. The configured device capabilities are transmitted to the service managers for subsequent service scheduling. Services provided by the service managers are announced based on the available actual service priority profiles. The IMG communicates content for the announced services between the communicatively coupled client devices and the service managers. The IMG may allow the user of a client device to access desired content via other client devices. Content and/or downloaded content for carrier grade services are provided to one or more non-carrier grade client devices when needed.

Method and system for prioritizing and scheduling services in an IP multimedia network

An IP multimedia residential gateway (IMRG) determines device capabilities and service priority profiles of client devices. The determined device capabilities and service priority profiles, comprising service classes and service class priorities, may be transmitted to the service managers for service deployment. The service managers may provide services to client devices based on corresponding device capabilities and service priority profiles. The IMRG may track device capabilities and service priority profiles for self-configuration. Available services supported by networks may be discovered during network discovery. The discovered services are announced to the client devices. The IMRG may communicate content of the announced services with the client devices based on corresponding device capabilities and service priority profiles. The service managers schedules services for the client devices based on corresponding device capabilities and service priority profiles, and may communicate content of the scheduled services to the client devices via the IMRG.

Method and system for service discovery and deployment in an IP multimedia network

A common IP layer client device interface within an IP multimedia gateway (IMG) is configured to connect client devices to broadband IP networks such as the Internet based on determined device capabilities. Broadband IP network interfaces within the IMG are configured to enable communication between the IMG and broadband IP networks based on the determined device capabilities. Content provided by various service managers are communicated with the client devices utilizing the common IP layer client device interface and the configured network interfaces. Network capabilities may be determined during the device and network discovery. Protocol translation, media transcoding and/or dynamic device configuration may be performed based on the determined device capabilities, and based on the determined network capabilities. The IMG may adjust system timing and manage power consumptions for service deployment over corresponding client devices. Information may be routed or distributed by the IMRG among the client devices when needed.

Method and system for generic IP multimedia residential gateways

Techniques are provided for handling failures of DNS (domain name system) servers to respond to DNS queries. A DNS resolver is configured to resolve domain names, and includes a time-to-live (TTL)-based cache, a negative cache, and a long term store cache. The TTL-based cache is configured to temporarily store domain names with resolved IP addresses. The negative cache is configured to store negative entries that include information indicating domain names that were failed to be resolved. The long term store cache is configured to store domain names with resolved IP address for an indefinite time period. The caches are accessed in a manner that enables fewer DNS query retries to be performed when a DNS server is non-responsive, to reduce delays and network traffic. Furthermore, the DNS resolver may reduce a number of DNS queries performed the longer the DNS server stays non-responsive.

Fault tolerance approaches for DNS server failures

An IP multimedia gateway (IMG) may be operable to identify a client device which may not currently possess a security capability that is compatible with a security capability of a service manager for receiving a service from the service manager. A security process between the client device and the service manager may be enabled by the IMG to enable the client device to receive the service from the service manager. The client device may be local to the IMG or remote with respect to the IMG. The IMG may enable an authentication process between the client device and the service manager by performing authentication translation. The IMG may enable a cryptography process between the client device and the service manager by performing cryptography translation. The IMG may enable an authorization process for authorizing the client device to access a particular content by performing access control conversion.

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Surrey, Canada

Sam Anderson