The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2012
Filed:
Apr. 30, 2007
Jung Ah Lee, Pittstown, NJ (US);
Said Tatesh, Swindon, GB;
Hai Zhou, Faringdon, GB;
Alcatel Lucent, Paris, FR;
Abstract
In a wireless telecommunications network, a Code Division Multiple Access (CDMA) scheme is applied to data to encode it. The encoded data transmitted in the uplink using an Orthogonal Frequency Division Multiplexing (OFDM) frame structure including a cyclic prefix (CP). The CDMA encoded data may be time multiplexed with Single Carrier-Frequency Division Multiple Access (SC-FDMA) transmissions. The CDMA transmissions may be used for relatively small payloads, such as those associated with voice traffic and control signals, and the SC-FDMA transmissions used for higher date rate transmissions. This enables autonomous transmission, without scheduling, for smaller payloads. A transmitter includes a selectorfor performing time multiplexing in the uplink, the required mode being indicated by the Hybrid Automatic Repeat Request (HARQ) ID. A first branchcarries SC-FDMA data and a second branchcarries data to be transmitted as a CDMA scheme. A CAZAC code may be used in encoding the CDMA data.