Abstract:
PURPOSE: A method for managing THE(Traffic Handling Element) resources in an RNC(Radio Network Controller) in an IMT-2000 WCDMA mobile system is provided to maximize the efficiency of THE resource management by managing THEs on the basis of channels, not calls, and considering traffic distribution service classes. CONSTITUTION: If an operation is started, initial data are received from a database, including configuration information(S11). A context array for a traffic handling processor is configured, and the context array and a list of elements for the traffic handling processor are initialized through the initial data for each processor(S12). Then a THE assignment request is executed through the input of a service type to use a channel(S13). A processor is assigned from the context array of the traffic handling processor according to the channel assignment request(S14). If a THE is assigned to the selected processor(S15), a processor ID and an element ID are outputted(S16).
Abstract:
There is provided a method for performing an intra-packet data service node (PDSN) hard handoff. The method is implemented by setting up a channel passing through a target base station controller (T-BSC), a source base station controller (S-BSC), a source packet control function (S-PCF) and a PDSN by establishing a channel link between the S-BSC and the T-BSC via a mobile station center (MSC) in an active packet session mode, performing the hard handoff between the S-BSC, the T-BSC and a mobile station (MS) and transmitting or receiving user packet data exchanged between the MS and the T-BSC through the established channel link to or from the PDSN in case the hard handoff is completed.
Abstract:
PURPOSE: A method for performing an inter-PDSN(Packet Data Serving Node) high-speed soft hand-off through a link setup between BSCs(Base Station Controllers) through an MSC(Mobile Switching Center) is provided to replace a hard hand-off from an S(Source)-BSC to a T(Target)-BSC with a soft hand-off, perform the soft hand-off, maintain the S-BSC as an anchor, and offer a packet data service in an active mode. CONSTITUTION: An S-BSC(103) transmits an A3 connect acknowledgement message to a T-BSC(107) for completing an A3 connection(S205). The S-BSC(103) transmits an idle forward frame to the T-BSC(107)(S207). The T-BSC(107) transmits the idle forward frame as soon as the T-BSC(107) acquires a synchronization, and prepares for transmitting an idle reverse frame(S209). The T-BSC(107) transmits the idle reverse frame to the S-BSC(103) as soon as the T-BSC(107) receives the idle forward frame from the S-BSC(103)(S211). The T-BSC(107) transmits an A7 hand-off request acknowledgement message to the S-BSC(103) for informing that the addition of the cell is successfully achieved(S213). If the S-BSC(103) acquires the synchronization of the T-BSC(107) and an A3 traffic sub-channel, the T-BSC(107) transmits an A3 traffic channel status message(S215). If the S-BSC(103) transmits a hand-off direction message to an MS(101) and adds a new cell in an active set(S217), the MS(101) transmits an MS acknowledgement message for answering to the hand-off direction message and transmits a hand-off completion message for informing the successful result of the hand-off direction message process(S221).
Abstract:
PURPOSE: A wireless access gateway device for accessing an IP packet-based core network in an IMT-2000 mobile communication network is provided to differentiate voices based on lines from voices based on packets, and to integrate various wireless Internet packet services into an IP-based packet service, thereby reducing service cost and implementing an efficient packet data service. CONSTITUTION: The first gateway performs a wireless data service with an IP-based core network and more than a 3 or a 4 generation wireless access network. The second gateway performs a wireless data service with the IP-based core network and 2/2.5 generation wireless access networks. The wireless data services are carried out by an IP-based packet service. A protocol conversion, a protocol interworking, and an interface are performed through an API(Application Program Interface), to carry out functions of the first and the second gateway. The first gateway comprises as follows. The first access unit mounts a protocol stack corresponding to the wireless access network for accessing more than 3 generation wireless access networks. The first access gateway functional unit mounts a gateway protocol stack for communicating with the IP-based core network, by exchanging information packets with the first access unit or the second gateway.
Abstract:
PURPOSE: A mobile system capable of changing channel cards and a method for changing channel cards are provided to increase the efficiency in use of channel cards and the efficiency of radio access by enabling a channel card in use to be replaced with another channel card. CONSTITUTION: If a UE(User Equipment)(330) makes a call setup request, an RNC(Radio Network Controller) sets up a DCCH logical channel for signal dedicated channel setup for the UE. The RNC determines the capacity of a traffic channel service through the DCCH logical channel. Then the RNC judges whether a change in the channel card connected to the UE by wireless is required. In case that a change in the channel card connected to the UE by wireless is required, an RTS establishes a multipath for another channel card other than the connected channel card. The RTS releases the wireless connection between the UE and the presently connected channel card and connects the UE to the multipath-established channel card by wireless. The RNC releases the connection between the UE and the connection-released channel card and sets up a DTCH logical channel for traffic transmission to the UE.
Abstract:
There is provided a method for performing an inter-packet data service node (PDSN) hard handoff. The method is implemented by setting up a channel link passing through a target base station controller (T-BSC), a source base station controller (S-BSC), a source packet control function (S-PCF) and a source-PDSN (S-PDSN) by establishing a channel link between the S-BSC and the T-BSC via a mobile station center (MSC) in an active packet session mode, performing the hard handoff between the S-BSC, the T-BSC and a mobile station (MS) and transmitting or receiving user packet data exchanged between the MS and the T-BSC through the established channel link to or from the S-PDSN in case the hard handoff is completed.
Abstract:
There is provided a method for performing an inter-packet data service node (PDSN) soft handoff. The method is implemented by setting up a channel passing through a target base station controller (T-BSC), a source base station controller (S-BSC) and a source-PDSN (S-PDSN) by establishing a direct channel link between the S-BSC and the T-BSC in an active packet session mode, performing a handoff between the S-BSC, the T-BSC and a mobile station (MS), transmitting or receiving user packet data exchanged between the MS, and the S-BSC and the T-BSC to or from the S-PDSN through the established channel link and sending or receiving user packet data exchanged between the MS and the T-BSC to or from the S-PDSN through the established channel link when the handoff is completed.
Abstract:
PURPOSE: A hard handoff method in a packet mobile communication network is provided to execute a mobile client's multi-PPP session establishment and control function for a high speed handoff in order to solve a problem generated in a handoff procedure in the third generation packet mobile communication network. CONSTITUTION: While data are being exchanged between an MC(Mobile Client) and a PDSN**(Packet Data Service Node) through a PPP session(S21), an RN*(Radio Network) sends a hard handoff request to an RNt(target radio network)(S22). After determining whether the handoff is to be executed, the RNt sends a hard handoff response to RN*(S23). The RN* informs the MC of the execution of the handoff to the RNt(S24). The MC executes a radio access procedure to the RNt(S25). At this moment, the RNt sends a session ID to a PDSNt. The PDSNt recognizes a new R-P through the session ID(S26), and establishes a PPP session with the MC(S27). After executing PPP initialization, the PDSNt sends agent advertisements to the MC(S28). The MC sends an agent solicitation to the PDSNt. At this moment, the MC generates a mobility IP registration request(S29). The PDSNt sends an AMR message containing the registration request to an AAA server(S30). In response to the AMR message, the AAA server sends an AMA message(S31). The PDSNt informs the MC of the mobility IP registration response(S32). After handoff completion, the MC notifies the RN* of it(S33). The RN* informs the PDSN** that the channel with the MC has been closed(S34), and billing is provisionally recorded in the AAA server(S35). Accordingly, the data service between the PDSNt and the MC is activated through the PPP session(S36).
Abstract:
본 발명은 스마트 안테나 기지국 시스템에서의 안테나 빔의 섹터간 전이 방법과 이를 저장한 기록매체 및 이를 이용한 차세대 비동기 이동통신 시스템에 관하여 개시한다. 본 발명의 섹터간 빔 전이는 이용자의 무선 환경과 관련된 파라미터들의 변화를 감지하고, 시간 혹은 공간에 있어서 무선 환경에 따른 사용자의 채널 설정 요구의 양에 따라 안테나 빔의 섹터간 전이를 통해 기지국의 섹터의 폭을 동적으로 조정한다. 본 발명에 따르면 섹터간 트래픽 부하의 균형과 불필요한 핸드오프를 줄임으로써 보다 사용자에게 좋은 통신 품질을 제공하고 시스템의 용량을 효율적으로 관리할 수 있다.