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:
Oct. 15, 2002
Filed:
Dec. 22, 1999
Sanjoy Sen, Plano, TX (US);
Tanuj Bagchi, Plano, TX (US);
Joseph Ho, Sunnyvale, CA (US);
Kalyan Basu, Plano, TX (US);
Indranil Bob Tapadar, Ontario, CA;
Chiew-Leong Saw, Ontario, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A system and method for GPRS MAC procedures to support delay-sensitive, real-time traffic is presented. The system comprises a mobile station able to transmit packets to and receive packets from a base station, where the base station is coupled to a General Packet Radio Service (GPRS) network, and where the GPRS network is coupled to a data network. In an uplink dynamic scheme, the base station receives an empty packet from the mobile station. The base station releases a bandwidth allocated to the mobile station if an implementation dependent time expires and further allocates a reduced portion of the bandwidth to the mobile station if a number of the empty packets are received or if a control packet requesting additional bandwidth is received by the base station. In an uplink fixed scheme, the base station allocates a fixed number of radio resources to the mobile station. The base station releases the radio resources allocated to the mobile station, if the fixed number of radio resources are not utilized and further allocates a reduced bandwidth to the mobile station if a number of empty packets are received.