[특허]Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system

Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-001/69
출원번호	US-0624187 (2007-01-17)
등록번호	US-7466741 (2008-12-16)
발명자 / 주소	Tiedemann, Jr.,Edward G. Sinnarajah,Ragulan
출원인 / 주소	QUALCOMM Incorporated
대리인 / 주소	Mobarhan,Ramin
인용정보	피인용 횟수 : 0 인용 특허 : 29

초록 ▼

The call processing state machines defined by the CDMA standards (e.g., IS-95 and IS-2000) are modified to include a "traffic channel" substate indicative of the mobile station processing at least one active call. Call control (CC) state machines of various types are also provided to control the processing of the calls. To process one or more calls concurrently, a CC state machine is instantiated upon receiving an indication to process a particular call. The instantiated CC state machine is identified with, and used to control the processing of, the particular call. Upon receiving an indication to process an additional call, another CC state machine can be instantiated for the additional call. Each call to be processed can also be associated with a particular a service option connection, which includes information indicative of a set of parameters (e.g., the physical channels) to be used for data transmission.

대표청구항 ▼

What is claimed is: 1. An apparatus for processing calls concurrently, comprising: a controller to receive an indication of a first call to be processed, the controller to determine a first service option connection to be mapped to the first call and to instantiate a first call control state machine of a type in accordance with a type of the first call, the first call control state machine being used to control processing of the first call, and the controller to establish a set of one or more physical channels associated with the first service option connection to be used for data transmission. 2. The apparatus of claim 1 wherein the controller instantiates a separate call control state machine for each subsequent call to be processed, the instantiated call control state machine is of a type in accordance with a type of the respective subsequent call. 3. The apparatus of claim 1 wherein the controller determines, for each subsequent call, a service option connection to be used for data transmission and maps each subsequent call to the respective service option connection. 4. The apparatus of claim 1 wherein, in response to a directive to release a particular call, the controller releases the respective call control state machine associated with the particular call. 5. The apparatus of claim 1 wherein the controller determines whether a particular service option connection is mapped to any active call and releases the particular service option connection if the particular service option connection is not mapped to any active call. 6. An apparatus for processing calls, comprising: a control processor to implement a call processing state machine including a first state indicative of a period of synchronization with a particular communication system, a second state indicative of a period of monitoring of a paging channel, a third state indicative of a period of accessing a base station in the particular communication system, and a fourth state indicative of processing of at least one active call, each active call being associated with a call control state machine. 7. The apparatus of claim 6 wherein the call control state machine for each call being processed is of a type selected based on a type of the respective call being processed. 8. The apparatus of claim 6 wherein the fourth state includes a first substate indicative of data transmission of traffic channels, a second substate indicative of data transmission for a particular call, and a third substate indicative of termination of the particular call. 9. The apparatus of claim 6 wherein the call control state machine associated with a voice call or a data call includes: a first substate indicative of a wait for an alert with information message to process the respective; a second substate indicative of a wait for a user response to the respective call; a third substate indicative of a period of permissible transmissions for the respective call; and a fourth substate indicative of termination of the respective call.

이 특허에 인용된 특허 (29)

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Blakeney ; II Robert D. (Steamboat Springs CO) Tiedemann ; Jr. Edward G. (San Diego CA), Method for providing service and rate negotiation in a mobile communication system.
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Ziv Noam A. ; Padovani Roberto ; Levin Jeffrey A. ; Easton Kenneth D., Method of searching for a bursty signal.
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Yao Yu-Dong ; Grob Matthew S. ; Levken Eric J. ; White Katherine W., Method/apparatus for an accelerated response to resource allocation requests in a CDMA push-to-talk system using a CDMA.
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Aoki Jinichi,JPX, Mobile communication system and a method of communication mode transition.
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Method and apparatus for concurrently processing multiple calls in a spread spectrum communications system 원문보기

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