Reconfigurable Wireless Modem Sub-Circuits To Implement Multiple Air Interface Standards

• Main Authors: CHAUDHURI ARUNAVA, ZANOTELLI JOSEPH, YAO IWEN, LIN JEREMY H, ROSTAMPISHEH ALI, CHALLA RAGHU, NATH MRINAL M, SAMPATH HAMANTH, WU MIN
• Format: Patent
• Language: English
• Published: 01.10.2009
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; PHYSICS; WIRELESS COMMUNICATIONS NETWORKS

A flexible and reconfigurable digital system (for example, a wireless modem) includes a set of sub-circuits. Each sub-circuit includes a task manager and an amount of configurable hardware circuitry for performing a type of operation on a data stream. The task manager of a sub-circuit can configure and control the configurable hardware of the sub-circuit. A central processor configures and orchestrates operation of the sub-circuits by maintaining a set of task lists in a tightly coupled memory. Each task list includes task instructions for a corresponding sub-circuit. The task manager of a sub-circuit reads task instructions from its task list and controls its associated hardware circuitry as directed by the instructions. A timestamp task instruction and a push task instruction and the task list architecture allow modem sub-circuits to be easily reconfigured to operate in accordance with either a first air interface standard or a second air interface standard.