| Cisco Technolgy Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110113190 | SECONDARY STORAGE TO REDUCE COUNTER MEMORY IN FLOW TABLES - In one embodiment, a CAM overflow structure holds flow indices in a CAM and each CAM entry is associated with an overflow count value (OCV) entry holding an OCV. If counter in an primary flow-counter bank (PFCB) overflows when updated, the CAM is searched and, if the index of the counter that overflowed is stored in the associated OCV entry, the OCV is incremented. The counter values in the PFCB are scanned according to specified criteria and transferred to a secondary flow-counter bank (SFCB) held in non-custom system RAM. When a counter value is transferred to the SFCB the corresponding OCV is appended to the counter value. | 05-12-2011 |
| 20080205539 | Method and System for Achieving Spatial Diversity of a Wireless Communications Network - A method and system are provided for achieving spatial diversity of a wireless communications network. The method comprises arranging antennas on a transmitting wireless station into a plurality of antenna subgroups, wherein each of the antenna subgroups forms a virtual antenna, creating a plurality of beamformed MIMO channels using the plurality of virtual antennas, wherein each of the beamformed MIMO channel comprises a plurality of sub-carriers and corresponds to a virtual antenna, dividing sub-carriers in each of the plurality of beamformed MIMO channels into at least a first and second cluster, distributing a first amount of transmitting power to the first cluster and a second amount of transmitting power to the second cluster, wherein the first amount of transmitting power is substantially larger than the second amount of transmitting power. | 08-28-2008 |
