[go: up one dir, main page]

KR960016201A - Multichannel Receiving Terminal in CDMA System and Multichannel Allocation Method - Google Patents

Multichannel Receiving Terminal in CDMA System and Multichannel Allocation Method Download PDF

Info

Publication number
KR960016201A
KR960016201A KR1019940027538A KR19940027538A KR960016201A KR 960016201 A KR960016201 A KR 960016201A KR 1019940027538 A KR1019940027538 A KR 1019940027538A KR 19940027538 A KR19940027538 A KR 19940027538A KR 960016201 A KR960016201 A KR 960016201A
Authority
KR
South Korea
Prior art keywords
channel
channels
packet
field
channel allocation
Prior art date
Application number
KR1019940027538A
Other languages
Korean (ko)
Other versions
KR970001857B1 (en
Inventor
류승문
유재황
강재현
김정철
최용욱
김훈동
Original Assignee
조병일
한국이동통신 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 조병일, 한국이동통신 주식회사 filed Critical 조병일
Priority to KR1019940027538A priority Critical patent/KR970001857B1/en
Publication of KR960016201A publication Critical patent/KR960016201A/en
Application granted granted Critical
Publication of KR970001857B1 publication Critical patent/KR970001857B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H04J3/0611—PN codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/32—Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 코드분할 다중접속(이하, CDMA라 칭함)시스템에서 하나의 단말기가 기지국으로 부터 다수의 채널을 할당받아 한정된 주파수 자원을 효율적으로 사용하도록 한 CDMA 시스템에서의 멀티채널 수신 단말장치와, 그에 적용되는 멀티채널 할당방법에 관한 것으로, 수신 단말장치는, 기지국(24 내지 25)신호에 동기를 맞추어 복조부(32)에서 수신한 신호를 멀티채널로 전송하는 동기부(33)와, 기지국(24 내지 25)신호의 동기에 필요한 PN코드를 발생하여 상기 동기부(33)에 제공하고 카운터릍 사용하여 멀티채널 각각에 필요한 PN코드를 만드는 PN코드 생성 및 카운터부(34)와, 상기 멀티채널 각각에 대해 수신되는 패킷을 처리하는 패킷처리부(35)를 구비하는 것을 특징으로 하고, 멀티채널 할당방법은, 단말기(21 내지 23)가 시도된 호의 서비스에 필요한 채널수를 호 요구 패킷에 실어 기지국(24 내지 25)에 전송하는 제1단계와, 상기 호 요구 패깃을 수신한 기지국(24 내지 25)은 여유채널이 있는지 판단하는 제2단계와, 여유채널이 없으면 채널할당 실패메시지를 송신하고 여유채널이 있으면 채널할당 성공메시지를 송신하는 제3단계와, 상기 단말기(21 내지 23)가 채널할당에 성공하면 서비스가 시작되며 이동국 동적 채널할당을 수행하는 제4단계를 포함하는 것을 특징으로 한다.The present invention relates to a multi-channel receiving terminal apparatus in a CDMA system in which one terminal is allocated a plurality of channels from a base station to efficiently use a limited frequency resource in a code division multiple access (hereinafter referred to as CDMA) system, and The present invention relates to a multi-channel allocation method, wherein the reception terminal apparatus includes a synchronization unit 33 for transmitting a signal received by the demodulation unit 32 to a multi-channel in synchronization with the signals of the base stations 24 to 25, and a base station ( PN code generation and counter unit 34 for generating PN codes necessary for synchronizing signals and providing them to the synchronization unit 33 and using the counters to make PN codes for each of the multichannels. And a packet processing unit 35 for processing the received packet for each of the above, wherein the multi-channel allocation method includes the number of channels required for the service of the attempted call by the terminals 21 to 23; A first step of transmitting a call request packet to the base stations 24 to 25; a second step of determining whether there is a spare channel; and a base station 24 to 25 receiving the call request packet; A third step of transmitting a failure message and a channel allocation success message if there is a free channel; and a fourth step of starting a service and performing mobile station dynamic channel allocation when the terminals 21 to 23 succeed in channel allocation. Characterized in that.

Description

씨디엠에이(CDMA) 시스템에서의 멀티채널 수신 단말장치와 그에 적용되는 멀티채널 할당 방법Multichannel Receiving Terminal in CDMA System and Multichannel Allocation Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 멀티통화채널 할당 예시도,2 is a diagram illustrating multi-call channel allocation according to the present invention;

제3도는 본 발명에 따른 멀티채널 수신 단말장치의 구성 블럭도,3 is a block diagram of a multi-channel receiving terminal apparatus according to the present invention;

제4도는 본 발명에 따른 단말기와 기지국간의 채널할당을 위한 절차 흐름도.4 is a flowchart illustrating channel allocation between a terminal and a base station according to the present invention.

Claims (6)

단말기(21 내지 22)와, 일정 영역을 담당하는 기지국(24 내지 25)을 구비하여 하나의 주파수 할당내에 다수개의 통화채널을 포함하도록 하는 코드분할 다중접속(CDMA; Code Division Mu1tiple Access)(이하, CDMA)라 칭함)이동전화 시스템에 적용되는 수신 단말장치에 있어서, 전력제어를 위한 전력제어 및 자동이득 제어부(PWR cntr ＆ AGC)(31)와, 상기 전력제어 및 자동이득 제어부(31)에 연결되어 상기 기지국(24 내지 25)에서 수행한 디지틀 변조신호를 복조하는 복조부(DEMED)(32)와, 상기 기지국(24 내지 25)신호에 동기를 맞추어 상기 복조부(32)에서 수신한 신호를 멀티채널로 전송하는 동기부(Syncronizer)(33)와, 상기 기지국(24 내지 25)신호의 동기에 필요한 PN코드(Psuedorandom Noise Code)를 발생하여 상기 동기부(33)에 제공하고 카운터를 사용하여 멀티채널 각각에 필요한 PN 코드를 만드는 PN코드 생성 및 카운터부(PN Generator ＆ Counter)(34)와, 상기 멀티채널 각각에 대해 수신되는 패킷을 처리하는 패킷처리부(35)와, 상기 패킷처리부(35)에 연결되어 패킷을 분해 결합하는 패킷 멀티플렉스(36)를 구비하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널을 위한 수신 단말장치.Code Division Multiple Access (CDMA) including terminals 21 to 22 and base stations 24 to 25 serving a certain area to include a plurality of talk channels in one frequency allocation (hereinafter, In a receiving terminal device applied to a mobile telephone system, a power control and automatic gain control unit (PWR cntr & AGC) 31 for power control is connected to the power control and automatic gain control unit 31. And a demodulator (DEMED) 32 for demodulating a digitally modulated signal performed by the base stations 24 to 25 and a signal received by the demodulator 32 in synchronization with the signals of the base stations 24 to 25. A synchronization unit 33 for transmitting the multi-channel and a PN code (Psuedorandom Noise Code) necessary for synchronizing the signals of the base stations 24 to 25 are generated and provided to the synchronization unit 33, and the counter is used. Create the PN code required for each multichannel Is connected to the PN code generation and counter unit (PN Generator & Counter) 34, a packet processing unit 35 for processing packets received for each of the multi-channels, and the packet processing unit 35 to decompose and combine the packets. A receiving terminal device for multichannel in a CDMA system, characterized in that it comprises a packet multiplex (36). 단말기(21 내지 22)와, 일정간 구역을 담당하는 기지국(24 내지 25)을 구비한 CDMA 이동전화 시스템에 적용되는 멀티채널 할당방법에 있어서, 상기 단말기(21 내지 23)가 시도된 호의 서비스에 필요한 주파수 대역폭을 결정하여 산출한 채널수를 호 요구 패킷(Call-Request Packet)에 실어 상기 기지국(24 내지 25)에 전송하는 제1단계와, 상기 호 요구 패킷을 수신한 기지국(24 내지 25)은 상기 단말기(21 내지 23)가 요청하는 채널수를 파악하여 할당할 채널의 여유가 있는지 판단하는 제2단계와, 상기 제2단계 수행 후, 여유 채널이 없으면 채널할당 실패 메시지를 송신하고 여유 채널이 있으면 채널할당 성공 메시지를 송신하는 제3단계와, 상기 단말기(21 내지 23)가 채널할당에 성공하면 서비스가 시작되며 이동국 동적 채널할당을 수행하는 제4단계를 포함하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널 할당방법.In a multi-channel allocation method applied to a CDMA mobile telephone system having terminals 21 to 22 and base stations 24 to 25 in charge of a predetermined area, the terminals 21 to 23 are used to service the attempted call. A first step of transmitting the calculated number of channels by calculating the required frequency bandwidth to a call request packet and transmitting them to the base stations 24 to 25; and the base stations 24 to 25 receiving the call request packet. The second step of determining whether there is room for the channel to be allocated by grasping the number of channels requested by the terminals 21 to 23, and after performing the second step, if there is no free channel, transmits a channel allocation failure message and free channel. A third step of transmitting a channel allocation success message if there is a message; and a fourth step of starting a service and performing a mobile station dynamic channel allocation when the terminals 21 to 23 succeed in channel allocation. Multi-channel allocation method in a CDMA system that. 제2항에 있어서, 상기 호 요구 패킷은, 간선상태에 따라 사용자(USER)정보의 에러정정기능 여부를 나타내는 필드로써, 이하 52바이트(byte)의 패킷 데이타 전체를 검사하며 이 필드에 에러가 발생할 때는 패킷 전체를 버리도록 하는 패킷 검사 코드(PACKET CHECK CODE)필드와, 각 패킷의 헤더를 전송하는 호 요구 패킷 코드(CALL-REQUEST PACKET CODE)필드와, 기지국에서 이 필드를 참조하여 서비스에 필요한 채널의 수를 정하고 채널을 할당하도록 단말기가 서비스에 필요한 대역폭을 나타내는 사용자간 대역폭(END-USER BANDWITH)필드와, CR(CaU Request)일때는 FA(Flood Ack)패 킷과 같게, CRA(Call Request Ack)일때는 CR(Call Request)패킷과 같게 전송하는 홉 카운트(HOP COUNT)필드와, 망에서 가상채널을 형성하기 위해 사용될 CIT(Call Information Table)의 주소를 IM(Interface Module)이 할당하여 기입하는 가상채널(VIRTUAL CHANNEL)필드와, CR 및 CRA패킷을 각각 발생시킨 IM의 단말번호를 기입하는 발신 가입자 주소(CALLINGSUBS, ADDTESS)필드와, CR(A)패킷이 망에서 경유될 라우팅(routing)정보를 넣는 방향 필드(DITECTION FIELD)를 구비하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널 할당방법.3. The call request packet according to claim 2, wherein the call request packet is a field indicating whether or not an error correction function of user information is performed according to a trunk line, and the entire packet data of 52 bytes is examined and an error occurs in this field. The packet check code field for discarding the entire packet, the call request packet code field for transmitting the header of each packet, and the channel required for the service by referring to this field at the base station. END-USER BANDWITH field indicating the bandwidth required for the service to set the number of channels and allocate the channel, and in case of CR (CaU Request), Call Request Ack, similar to FA (Flood Ack) packet. ) Is the same as the CR (Call Request) packet and the IM (Interface Module) assigns and writes the address of the hop count field and the CIT (call information table) to be used to form the virtual channel in the network.VIRTUAL CHANNEL field, CALLINGSUBS (ADDTESS) field for inputting the terminal number of IM that generated CR and CRA packets, respectively, and routing information for CR (A) packet to pass through the network. The multi-channel allocation method in a CDMA system, characterized in that it comprises a DITECTION FIELD. 제2항에 있어서, 멀티채널로 서비스를 받는 중 핸드오프(Handoff)가 발생하는 경우에는 단말기(22)가 할당받고자 하는 채널의 수와 이 서비스에 필요한 최소 채널수를 포함한 핸드오프(Handoff)요청 메시지를 현재의 기지국(24)에 전송하여 상기 기지국(24)이 인접 기지국(25)에 채널할당을 요청하는 제5단계와, 상기 인접 기지국(25)은 현 주파수 할당(FA : Frequenfcy Assigmnint)내에 요칭채널 수가 남아 있으면 소프트 핸드 오프로 채널을 할당하고 없으면 다른 주파수 할당내에 요청채널수가 남아 있는지 확인하여 요청채널수가 남아 있으면 하드 핸드오프로 채널을 할당하는 제6단계와, 상기 제6단계에서, 남아 있는 요청채널수가 없으면 한 주파수 할당내에 요청 서비스에 필요한 최소채널수가 남아 있는지 확인하여 최소 채널수가 남아 있으면 소프트 핸드오프로 채널을 할당하고 없으면 다른 주파수 할당내에 요청서비스에 필요한 최소 채널수가 남아 있는지 확인하는 제7단계와, 상기 제7단계 수행 후, 최소 채널수가 남아 있으면 하드 핸드오프로 채널을 할당하고 없으면 채널할당 실패를 알리는 제8단계와, 상기에서 채널이 할당되면 단말기(22)는 이동국 동적 채널할당을 수행하는 제9단계를 더 포함하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널 할당방법.The handoff request according to claim 2, wherein when a handoff occurs while receiving a multi-channel service, a handoff request including the number of channels to be allocated by the terminal 22 and the minimum number of channels required for the service is performed. A fifth step of transmitting a message to the current base station 24 so that the base station 24 requests channel allocation from the neighboring base station 25, and the neighboring base station 25 is located within the current frequency allocation (FA: Frequenfcy Assigmnint). If the required number of channels remains, the channel is allocated by soft handoff. If not, the sixth step is to check whether the number of requested channels remains within another frequency allocation. If there are no request channels present, check that there is no minimum number of channels required for the requesting service within one frequency allocation, and if the minimum number of channels remains, soft handoff. If not, the seventh step of checking whether the minimum number of channels required for the requested service remain in another frequency allocation, and if the minimum number of channels remains after performing the seventh step, allocates the channel to hard handoff if the minimum number of channels remains. Step 8, and if the channel is allocated, the terminal (22) further comprises a ninth step of performing mobile station dynamic channel allocation. 제2항 또는 제4항에 있어서, 상기 이동국 동적 채널할당은, 단말기와 기지국간에 서비스가 이루어지면서 단말기가 현재 서비스되는 채널수를 확인하여 적당하면 가변 타이머에 설정된 시간내에서 채널수 확인을 반복 수행하는 제10단계와, 상기 현재 채널수를 확인한 결과, 사용되는 채널수가 과다하면 채널해제 요구 메시지를 기지국에 송출하여 채널을 해제하고 가변 타이머에 선정된 시간내에서 채널수 확인을 반복 수행하는 제11단계와, 상기 현재 채널수를 확인한 결과, 사용되는 채널수가 부족하면 채널할당 요구패킷(CHANNEL ALLO-CATION REQUEST PACKET)을 기지국에 송출한 후 채널할당이 성공되면 가변 타이머에 설정된 시간내에서 채널수 확인을 반복 수행하는 제12단계를 포함하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널 할당방법.5. The method of claim 2 or 4, wherein the mobile station dynamic channel allocation checks the number of channels currently serviced by the terminal while the service is performed between the terminal and the base station, and if necessary, repeatedly checks the number of channels within a time set by the variable timer. A tenth step of checking the current number of channels, and if the number of channels used is excessive, the channel release request message is sent to the base station to release the channel, and the number of channels is repeatedly checked within the time selected by the variable timer. And checking the current number of channels, if the number of channels used is insufficient, send a channel allocation request packet to the base station, and if the channel allocation is successful, check the number of channels within the time set in the variable timer. And a twelfth step of repeatedly performing the multichannel allocation method in the CDMA system. 제5항에 있어서, 상기 채널할당 요구패킷은, 간선상태에 따라 사용자(USER)정보의 에러정정기능 여부를 나타내는 필드로써, 이하 52바이트(bite)의 패킷 데이터 전체를 검사하며 이 필드에 에러가 발생할 때는 패킷 전체를 버리도록 하는 패킷 검사 코드(PACKET CHECK CODE)필드와, 각 패킷의 헤더를 전송하는 채널할당 패킷코드(CHANNEL ALLOCATION PACKET CODE)필드와, 단말기가 서비스에 필요한 대역폭을 나타내는 필드로서, 기지국에서 이 필드를 참조하여 서비스에 필요한 채널의 수를 정하고 채널을 할당하도록 하는 사용자간 대역폭(END-USER BANDWITH)필드와, CR(Call Request)일때는 FA(Flood Ack)패킷과 같게, CRA(Call Request Ack)일때는 CR(Can Request)패킷과 같게 전송하는 홉 카운트(HOP COUNT)필드와, 망에서 가상채널을 형성하기 위해 사용될 CIT(Call Information Table)의 주소를 IM(Interface Modu1e)이 할당하여 기입하는 가상채널(VIRTUAL CHANNEL)필드와, CR 및 CRA패킷을 각각 발생시킨 IM의 단말번호를 기입하는 발신 가입자 주소(CALLING SUBS, ADDTESS)필드와, CR(A)패킷이 망에서 경유될 라우팅(routing)정보를 넣는 방향 필드(DITECTION FIELD)를 구비하는 것을 특징으로 하는 CDMA 시스템에서 멀티채널 할당방법.6. The channel allocation request packet according to claim 5, wherein the channel allocation request packet indicates whether an error correction function of user information is performed according to a trunk line. When a packet occurs, the packet check code field for discarding the entire packet, the channel allocation packet code for transmitting the header of each packet, and the field indicating the bandwidth required for the service by the terminal, The END-USER BANDWITH field allows the base station to refer to this field to determine the number of channels required for the service and to allocate channels, and in the case of a CR (Call Request), the CRA ( In the case of Call Request Ack, the IM (Interface Modu) contains the hop count field transmitted in the same way as the CR (Can Request) packet and the address of the call information table (CIT) to be used to form the virtual channel in the network. The virtual channel field assigned and filled in by 1e), the calling party address field for entering the terminal number of the IM that generated the CR and CRA packets, respectively, and the CR (A) packet are networked. And a direction field for inserting routing information to be routed through a CDMA system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940027538A 1994-10-26 1994-10-26 Multi channel receiving terminal in cdma system KR970001857B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940027538A KR970001857B1 (en) 1994-10-26 1994-10-26 Multi channel receiving terminal in cdma system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940027538A KR970001857B1 (en) 1994-10-26 1994-10-26 Multi channel receiving terminal in cdma system

Publications (2)

Publication Number Publication Date
KR960016201A true KR960016201A (en) 1996-05-22
KR970001857B1 KR970001857B1 (en) 1997-02-17

Family

ID=19396042

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940027538A KR970001857B1 (en) 1994-10-26 1994-10-26 Multi channel receiving terminal in cdma system

Country Status (1)

Country Link
KR (1) KR970001857B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980055065A (en) * 1996-12-28 1998-09-25 성재갑 Eyeshadow Composition Containing Glycerin
KR20030022488A (en) * 2001-09-10 2003-03-17 한빛전자통신 주식회사 ATM Resource Allocation Architecture And Method For Handoff In The Base Station Controller
KR100396508B1 (en) * 1998-12-07 2003-11-28 삼성전자주식회사 Channel Assignment Apparatus and Method in Code Division Multiple Access Communication System
KR101318011B1 (en) * 1997-06-20 2013-10-14 인텔 코포레이션 Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access(cdma) radio link
KR102210397B1 (en) * 2020-06-10 2021-02-01 주식회사 바이오뷰텍 Powder cream emulsion with pseudo-skin mimics niosome included in hydrophobic powder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7547936B2 (en) 2004-10-08 2009-06-16 Samsung Electronics Co., Ltd. Semiconductor memory devices including offset active regions

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980055065A (en) * 1996-12-28 1998-09-25 성재갑 Eyeshadow Composition Containing Glycerin
KR101318011B1 (en) * 1997-06-20 2013-10-14 인텔 코포레이션 Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access(cdma) radio link
KR101393868B1 (en) * 1997-06-20 2014-05-12 인텔 코포레이션 Dynamic bandwidth allocation method for transmitting a wireless protocol over a code division multiple access wireless link
KR100396508B1 (en) * 1998-12-07 2003-11-28 삼성전자주식회사 Channel Assignment Apparatus and Method in Code Division Multiple Access Communication System
KR20030022488A (en) * 2001-09-10 2003-03-17 한빛전자통신 주식회사 ATM Resource Allocation Architecture And Method For Handoff In The Base Station Controller
KR102210397B1 (en) * 2020-06-10 2021-02-01 주식회사 바이오뷰텍 Powder cream emulsion with pseudo-skin mimics niosome included in hydrophobic powder

Also Published As

Publication number Publication date
KR970001857B1 (en) 1997-02-17

Similar Documents

Publication Publication Date Title
CA2135950C (en) Method of multiple access
KR100343487B1 (en) Access to Communication systems
US6920121B2 (en) Quality packet radio service for a general packet radio system
KR100905613B1 (en) Method and apparatus for multicast transmission / reception of packet data in mobile communication system
RU2209528C2 (en) Arbitrary-access communication channel for information services
KR100547802B1 (en) Method of Providing One-Way Broadcasting Service in Mobile Communication System
US6898194B1 (en) Method and system for fast access to an uplink channel in a mobile communications network
CA2350822A1 (en) Packet traffic channel deallocation
JPH10107770A (en) Multi-case communication for ds-cdma cellular telephone system
KR101502922B1 (en) Allocating traffic channels in a communications system
KR960016201A (en) Multichannel Receiving Terminal in CDMA System and Multichannel Allocation Method
MXPA04007101A (en) Overhead reduction in a communications system.
JP3312718B2 (en) Code division multiple access method
KR19990008910A (en) Control packet structure for providing packet service and user data transmission method using same
KR20000023147A (en) Method for processing transmitted message over common control channel in cdma communication system
GB2372407A (en) An improved signalling method for mobile telephones

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19941026

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19941026

Comment text: Request for Examination of Application

PG1501 Laying open of application
G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19970123

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19970430

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19970517

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19970517

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 20000217

Start annual number: 4

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20030120

Start annual number: 7

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20060131

Start annual number: 10

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20090123

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20100129

Start annual number: 14

End annual number: 14

PR1001 Payment of annual fee

Payment date: 20110201

Start annual number: 15

End annual number: 15

PR1001 Payment of annual fee

Payment date: 20120201

Start annual number: 16

End annual number: 16

FPAY Annual fee payment

Payment date: 20130103

Year of fee payment: 17

PR1001 Payment of annual fee

Payment date: 20130103

Start annual number: 17

End annual number: 17

FPAY Annual fee payment

Payment date: 20140128

Year of fee payment: 18

PR1001 Payment of annual fee

Payment date: 20140128

Start annual number: 18

End annual number: 18

EXPY Expiration of term
PC1801 Expiration of term

Termination date: 20150426

Termination category: Expiration of duration