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AssigneeSamsung Electronics Co., Ltd.
InventorsBeom-Sik Bae, Robert J. Marks
Estimating the term…
A method of determining whether a wireless packet data service can be activated in a dormant state. To activate one of a plurality of packet data services in the dormant state, a BS transmits to an MS a Page Message containing an SR ID identifying the service to be activated. If a service instance for the service is unavailable, the MS transmits to the BS a response message indicating that the service cannot be reconnected. The BS then terminates immediately, thereby saving radio resources and improving system performance.
A method of determining in a base station (BS) whether one of a plurality of data services provided to a mobile station (MS) can be reconnected in a dormant state where service instances are maintained for the data services with no traffic channels connected in a wireless packet data communication system, the method comprising the steps of:
A method of determining in a mobile station (MS) whether one of a plurality of data services received from a base station (BS) can be reconnected in a dormant state where service instances are maintained for the data services with no traffic channels connected in a wireless packet data communication system, the method comprising the steps of:
Dependencies are inferred from the claim text.
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Connection setup: connection re-establishment
Wireless communication networks
Term end not estimated
This application claims priority under 35 U.S.C. § 119 to an application entitled “Method of Providing Packet Data Service in a Wireless Telecommunication System” filed in the Korean Industrial Property Office on Apr. 13, 2002 and assigned Serial No. 2002-20254, the contents of which are incorporated herein by reference.
1. Field of the Invention
The present invention relates generally to a wireless telecommunication system, and in particular, to a method of determining whether a wireless packet data service can be activated in a dormant state with no traffic channel connected between a base station (BS) and a mobile station (MS).
The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
FIG. 1 is a diagram illustrating a signaling message flow for initiating a packet data service normally after transition from a dormant state to an active state in a CDMA2000 system to which the present invention is applied;
FIG. 2 is a diagram illustrating a conventional signaling message flow for terminating a service when the service cannot be activated in a dormant state in the CDMA2000 system;
Preferred embodiments of the present invention will be described herein below with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Particularly, specific details such as the structure of a Page Message and service option numbers indicating service types are provided for comprehensive understanding of the present invention. Therefore, it is obviously understood by those skilled in the art that the present invention can be implemented without them or with some modifications made to them.
The present invention provides a method of determining whether one of a plurality of services in a dormant state can be reconnected in a wireless packet data communication system. More specifically, in order to activate the service in the dormant state, a BS transmits an initial message containing an SR ID identifying the service to an MS. Before describing the decision as to the availability of the service reconnection, the operations of the BS and the MS for providing a packet data service in a conventional CDMA2000 system will first be described. The MS is connected to a packet data service node (PDSN) by wireless connection to the BS. The PDSN is responsible for connecting a mobile communication network to a packet communication network such as the Internet, and manages service instances between the MS and other various endpoints.
FIG. 1 is a diagram illustrating a signaling message flow for normally initiating a packet data service after transition from a dormant state to an active state in a CDMA2000 system to which the present invention is applied. A plurality of ongoing services between a BS and an MS are in the dormant state and the MS maintains service instances for the services.