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. 30, 2003
Filed:
Mar. 17, 2000
Michael E. Humes, Garland, TX (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
There is disclosed for use in a wireless network comprising a plurality of base transceiver substations capable of communicating with a plurality of mobile stations, an apparatus for preventing the dropping of an emergency call associated with a first one of the plurality mobile stations. The apparatus comprises a call drop controller for receiving from the wireless network a maintenance command directed to a first base transceiver substation handling the emergency call, determining whether the maintenance command may cause the first base transceiver substation to drop the emergency call and, in response to such a determination, preventing the maintenance command from being executed by the first base transceiver substation. The call drop controller also is capable of: 1) receiving a failure notification from a failed base transceiver substation, 2) determining whether the failed base transceiver substation is handling the emergency call and, 3) in response to such a determination, at least one of: a) increasing transmission power of at least one base transceiver substation proximate to the failed base transceiver substation; b) increasing a TDROP value of the failed base transceiver substation; and 3) decreasing a TADD value of at least one base transceiver substation proximate to the failed base transceiver substation.