Abstract:
본 발명은 초고속 휴대 인터넷 시스템에 관한 것이다. 본 발명에 따르면 핸드오버 발생시 IP 패킷뿐만 아니라 해당 ARQ 연결 정보와 IP패킷 정보 및 IP 패킷의 전송 블록 정보를 포함하여 새로운 기지국으로 전달한다. 이와 같이 하면 손실 없는 ARQ 트래픽 전송을 보장하고 효율적인 무선자원을 사용할 수 있다. 초고속 휴대 인터넷 시스템, 핸드 오버, ARQ 트래픽
Abstract:
PURPOSE: A method for connecting an AAL2 channel between a base station and an RNC(Radio Network Controller) in a wireless communication system is provided to supply a resource management algorithm for setting/cancelling the AAL2 channel, and to supply a method of connection-supporting and routing each interface module between the base station and the RNC, thereby reducing load of the interface modules. CONSTITUTION: A system receives an AAL2 connection setup request from an upper application program(323) of an RNC(32), assigns resources, and performs an internal setup(301-304). The system transmits an AAL2 connection setup request message to a base station(31)(305), and reads AAL2 channel information of an AAL2 connection setup request message to assign resources, then performs an internal setup(306-308). The base station(31) transmits an AAL2 connection setup confirmation message to the RNC(32), and an ALCAP(Access Link Control Application Part)(322) of the RNC(32) transmits an AAL2 connection setup confirmation primitive to the upper application program(323)(309-311).
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:
PURPOSE: A method for controlling an ATM switch having an open-type structure within an RNC(Radio Network Controller) of a mobile communication system is provided to enable an additional function, and to add an interface function only with a GSMP(General Switch Management Protocol) of a control processor, without influencing an independent model function when replacing with a common ATM switch, thereby easily interworking with an open-type ATM switch. CONSTITUTION: An RNC sets a switch model identifier, and requests a connection setup/cancellation of an ATM switch control block(410). The ATM switch control block assigns necessary parameter values according to the switch model identifier(420), and distinguishes the switch model identifier. If the switch model identifier is a GSMP-based independent model, the control block directly transmits an IPC message used during inter-processor communication in a GSMP-based independent model ATM switch, and performs a switch control function(430). If connected to a GSMP complying switch, the block converts an IPC type into a message type(450), and transmits an additional message to a switching processor(460). A GSMP message is encapsulated(470). The additional message is supplied with a function, depending on whether the GSMP complying switch(480).
Abstract:
PURPOSE: An inter-RNC(Radio Network Controller) connection method in a radio communication system is provided to efficiently transmit a bearer by using a minimum of ATM(Asynchronous Transfer Module) address resources between an RNC and an RNC in a handover and reducing the load of an interface module. CONSTITUTION: A serving RNC determines a VPI(Virtual Path Identifier) value for bearer allocation for inter-RNC connection. Using the determined VPI value, a G-RNC(Global-RNC) reads the address of the cell transmitted from the serving RNC and determines an output port to route to a drift RNC.
Abstract:
PURPOSE: An inter-RNC(Radio Network Controller) connection method in a radio communication system is provided to efficiently transmit a bearer by using a minimum of ATM(Asynchronous Transfer Module) address resources between an RNC and an RNC in a handover and reducing the load of an interface module. CONSTITUTION: A serving RNC determines a VPI(Virtual Path Identifier) value for bearer allocation for inter-RNC connection. Using the determined VPI value, a G-RNC(Global-RNC) reads the address of the cell transmitted from the serving RNC and determines an output port to route to a drift RNC.
Abstract:
PURPOSE: A method for controlling an ATM switch having an open-type structure within an RNC(Radio Network Controller) of a mobile communication system is provided to enable an additional function, and to add an interface function only with a GSMP(General Switch Management Protocol) of a control processor, without influencing an independent model function when replacing with a common ATM switch, thereby easily interworking with an open-type ATM switch. CONSTITUTION: An RNC sets a switch model identifier, and requests a connection setup/cancellation of an ATM switch control block(410). The ATM switch control block assigns necessary parameter values according to the switch model identifier(420), and distinguishes the switch model identifier. If the switch model identifier is a GSMP-based independent model, the control block directly transmits an IPC message used during inter-processor communication in a GSMP-based independent model ATM switch, and performs a switch control function(430). If connected to a GSMP complying switch, the block converts an IPC type into a message type(450), and transmits an additional message to a switching processor(460). A GSMP message is encapsulated(470). The additional message is supplied with a function, depending on whether the GSMP complying switch(480).
Abstract:
PURPOSE: A traffic control method of a random access channel in an asynchronous mobile communication system is provided to constantly use a random access channel at a required level of power and minimize an influence to a different channel by using the random access channel as a frame structure, discriminating signatures by request transfer rate spreading factor of several groups and rendering a base station to control a channel use on the basis of information on the number of preambles transmitted to a previous frame. CONSTITUTION: Each radio mobile terminal which has generated a packet to be transmitted obtains a channel through a preamble transmission. In order to reduce a packet collision, the radio mobile terminal selects one of signatures, that is, 16 orthogonal code, selects one of 8 slots existing in the generated frame and transmits a preamble. A base station receives the preamble properly transmitted without a collision or other error, and if a channel use of the used signature is available, the base station transmits a positive ACK signal through the obtained instruction channel to transmit the signature used by the mobile terminal to a down channel. If the channel of the signature being used is not available due to a blocking, the base station transmits a negative ACK signal to transmit a signal obtained by multiplying the used signature by -1. If the base station receives a positive ACK signal from the obtained instruction channel, the base station transmits a data packet by using an orthogonal code for spreading factor corresponding to the used signature. By operating the random access channel, a collision frequently taking place in the channel due to the slotted ALOHA characteristics can be minimized.
Abstract:
다중반송파를이용한브로드캐스트정보의전송방법을제공한다. 상기방법은다중반송파의동작을위한슈퍼프레임을구성하는단계, 및상기다중반송파중 선택된적어도하나의주요반송파를통해브로드캐스트정보를전송하는단계를포함한다. 다중반송파시스템에서각 반송파들을효율적으로관리할수 있고, 특히브로드캐스트정보의전송에있어서무선자원을효율적으로사용할수 있다.