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:
May. 21, 2002
Filed:
Jun. 23, 1998
Keith William Anderson, Durham, NC (US);
Scott Gordon Hicks, Apex, NC (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
A digital radio communication system has a mobile station and a base station, the mobile station transmitting messages to the base station in a series of frames. Each frame has a header with a frame number and an optional polling indicator. A method of determining whether the base station is capable of receiving a message in automatic retransmission request (ARQ) format is provided. The method includes the step of transmitting from the mobile station to the base station a single frame in ARQ format with a polling indicator set such that the base station is prompted to send a status frame in ARQ format if the base station is capable of receiving messages in ARQ format. The method also has the step of determining if a status frame in ARQ format is sent from the base station to the mobile station in response to the single frame. A mobile station operating according to the method of the present invention is also provided.