METHOD AND APPARATUS FOR CALL SETUP LATENCY REDUCTION

• US 20070086393A1
• Filed: 11/30/2006
• Published: 04/19/2007
• Est. Priority Date: 08/17/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Rezaiifar, Ramin, Wang, Jun, Ho, Duncan, Sinnarajah, Ragulan, Tiedemann, Edward
• Granted Patent: US 7,894,403 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 2212/00 Encapsulation of packets
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/19 Connection re-establishment

Abstract

Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier instead of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station (106) sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup without the need for mobile station paging and related messages.

Claims

1. A wireless communication system operably coupled with a network comprising:

a second station;

a first station for sending the second station an origination message including short data burst information for initiation of call setup and delivery of the short data burst information; and

a first switching center for receiving the short data burst information from the second station and sending it to a network destination.