Source: http://www.patentsencyclopedia.com/app/20140313977
Timestamp: 2018-08-14 08:45:32
Document Index: 685200947

Matched Legal Cases: ['Application No. 10', 'Application No. 10', 'Application No. 10', 'art 242', 'art 243', 'art 244']

Patent application number: 20140313977
1. A wireless communication terminal comprising a layered protocol structure to communicate with an asynchronous core network through a synchronous radio network, the wireless communication terminal comprising: a physical layer to communicate with a physical layer of the asynchronous core network through a physical layer of the synchronous radio network; a data link layer to communicate with a data link layer of the asynchronous core network through a data link layer of the synchronous radio network; and a network layer comprising an asynchronous call control (CC) entity and an asynchronous mobility management (MM) entity.
[0001] This application is a continuation application of U.S. patent application Ser. No. 13/857,020, filed on Apr. 4, 2013, which is a continuation application of U.S. patent application Ser. No. 13/604,502, filed on Sep. 5, 2012, which is a continuation application of U.S. patent application Ser. No. 11/966,263, filed on Dec. 28, 2007 and issued as U.S. Pat. No. 8,285,325 on Oct. 9, 2012, which is a continuation application of U.S. patent application Ser. No. 10/825,281, filed on Apr. 15, 2004, and issued as U.S. Pat. No. 7,505,783 on Mar. 17, 2009, which is a continuation of application Ser. No. 09/564,941, filed on May 4, 2000, and issued as U.S. Pat. No. 6,741,868 on May 25, 2004, all of which claim priority to and the benefit of Korean Patent Application No. 10-1999-0031448, filed on Jul. 30, 1999, Korean Patent Application No. 10-1999-0031591, filed on Jul. 31, 1999, and Korean Patent Application No. 10-1999-0034344, filed on Aug. 19, 1999, which are all hereby incorporated by reference for all purposes as if fully set forth herein.
[0077] According to network deployment scenarios, the IMT-2000 system can have the following four interface architectures; first: synchronous terminal--synchronous radio network--synchronous ANSI-41 network, second: synchronous terminal--synchronous radio network--asynchronous GSM-MAP network, third: asynchronous terminal--asynchronous radio network--synchronous ANSI-41 network and fourth: asynchronous terminal--synchronous radio network--asynchronous GSM-MAP network.
[0094] In accordance with a further aspect of the present invention, there is provided an apparatus for interfacing between a radio network and a core network connected to the radio network in a mobile telecommunication system, wherein the radio network has a base station (BS) having a hybrid operating type being possible to be set as either a synchronous operating type or an asynchronous operating type, said apparatus comprising: determination means for determining an operating. type of the core network; setting means for setting an operating type of the BS to the synchronous operating type or the asynchronous operating type on the basis of core network operating type information representing the determined operating type of the core network; and message means for providing the terminal with the core network operating type information and information related to the core network through a predetermined channel in a form of a message.
[0163] The GSM-MAP core network 240 comprises a layer 3 241 having a NAS part and an AS part, a layer 2 245 and a layer 1 246. The NAS part includes an asynchronous CC part 242 and an asynchronous MM part 243. The AS part includes an asynchronous RRC part 244.
[0199] Accordingly, the hybrid type synchronous terminal determines at step S26 whether the CN Type information value is "1" and proceeds to step S27 if the CN Type information value is "1". At step S27, the synchronous terminal analyzes information elements related to the core network as those for the ANSI-41 core network and stores desired ones of them in its memory. At this time, the stored information elements are system identification (SID), network identification (NID), a minimum protocol revision level (MIN_P_REV) and a protocol revision level (P_REV).
[0225] The hybrid type asynchronous terminal determines at step S55 whether the CN Type information is "GSM-MAP" and proceeds to step S56 if the CN Type information is "GSM-MAP". At step S56, the hybrid type asynchronous terminal analyzes the information elements related to core network as those for the GSM-MAP core network and stores a desired one, a PLMN identity, of them in its memory.
[0226] Thereafter, at step S57, the asynchronous terminal selects an asynchronous CC part and an asynchronous MM part for the GSM-MAP network and sets a protocol therebetween. Subsequently, the hybrid type asynchronous terminal carries out its initialization based on the contents of the information elements related to core network at step S58 and then performs a message interfacing operation with the GSM-MAP core network at step S59.
[0227] On the other hand, in the case where it is determined at the above step S55 that the CN Type information is not "GSM-MAP", the hybrid type asynchronous terminal determines at step S60 whether the CN Type information is "ANSI-41" and proceeds to step S61 if the CN Type information is "ANSI-41".
[0228] At step S61, the hybrid type asynchronous terminal analyzes the information elements related to the core network as those for the ANSI-41 core network and stores desired ones of them in its memory. The stored information elements are SID, NID, MIN_P_REV and P_REV information.
[0229] Thereafter, at step S62, the hybrid type asynchronous terminal selects a synchronous CC part and a synchronous MM part for the ANSI-41 network and sets a protocol therebetween. Subsequently, the hybrid type asynchronous terminal carries out its initialization based on the contents of the core network related information elements at step S63 and then performs a message interfacing operation with the ANSI-41 core network at step S64.
[0230] As apparent from the above description, according to the present invention, even though a hybrid type synchronous or asynchronous terminal is connected to either a GSM-MAP core network or an ANSI-41 core network, it can smoothly be interfaced with the connected core network because it is able to recognize the operating type of the connected core network and information related to the core network.
[0231] Further, new information elements (CN Type information and information related to core network) are simply added to a Sync channel message used in an existing synchronous radio network, in other words, changes or modifications of existing information elements in the Sync channel message are minimized. Therefore, the hybrid type synchronous radio network can readily notify a hybrid type synchronous terminal of the operating type of a connected core network, and a synchronous system subscriber can be provided with a service from an asynchronous GSM-MAP core network.
[0232] Moreover, new information elements, i.e., CN Type information and information related to core network, are added to a system information message used in an asynchronous system having an existing asynchronous radio network, without modifying existing information elements in the system information message. Therefore, the hybrid type asynchronous radio network can readily notify a hybrid type asynchronous terminal of the operating type of a connected core network, and an asynchronous system subscriber can be provided with a service from a synchronous ANSI-41 core network.
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