Cindy Chan Chan

8310926, Nov 13, 2012

Feb 18, 2010

12/708313

Alon S. Bernstein - Sunnyvale CA, US
Gitesh Shah - San Jose CA, US
Cindy Chan - San Jose CA, US
Hui Sun - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

G08C 15/00

370230, 370437, 370468

Load balancing across RF channels in a cable plant is challenging where individual cable modems have multiple receive/transmit channels. Load balancing may be taken into account in the assignments of channels to requesting modems in a registration process. Requesting modems may be registered in a sequence of descending order defined by the number of channels requested. Channel sets may be selected to minimize a maximum delta metric of load balancing. It is preferred to normalize the “weight” of a modem on a channel based on the modem capabilities. The relative weight may be inversely related to the number of channels supported by the modem. Load balancing techniques disclosed may be applied to both upstream and downstream channels. Current load balance quality is estimated and reported to an operator.

7000021, Feb 14, 2006

Oct 12, 2001

09/976627

Ramesh Radhakrishnan - Saratoga CA, US
Kushal Patel - Sunnyvale CA, US
Ozgur Gurbuz - Santa Clara CA, US
Ender Ayanoglu - Santa Clara CA, US
Arun Khanna - Cupertino CA, US
Alon Bernstein - Sunnyvale CA, US
Cindy Chan - San Jose CA, US

Cisco Technology, Inc. - San Jose CA

G06F 15/00

709230, 709217, 709229, 370394, 370473

Systems and methods for retransmitting unsuccessfully transmitted data across a communication link. The retransmission mechanism may be applied to point to multipoint networks including wireless networks. Each packet is encapsulated in an ARQ frame and assigned a sequence number for the purpose of coordinating acknowledgments and retransmissions. Information as to which packets require retransmission is communicated in the form of a bitmap where each bit indicates an acknowledgment status for a given packet. Any missing packets in the received sequence are assumed to require retransmission.