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PDCP (ang. Packet Data Convergence Protoco … PDCP (ang. Packet Data Convergence Protocol) - protokół używany w sieciach komórkowych pracujących w standardach UMTS, LTE i 5G. PDCP znajduje się w Radiowym Stosie Protokółów, świadcząc usługi dla wyższej warstwy RRC oraz innych wyższych warstw płaszczyzny transferu danych użytkownika. Bezpośrednio pod protokołem PDCP znajduje się protokół RLC. Główne funkcjonalności dostarczane przez warstwę PDCP:
* transfer danych płaszczyzny użytkownika
* transfer danych płaszczyzny kontrolnej
* kompresja nagłówków pakietów
* szyfrowanie pakietów
* kontrola integralności pakietów PDCP zostało opisane w specyfikacjach opublikowanych przez stowarzyszenie 3GPP:
* TS 25.323 dla sieci UMTS
* TS 36.323 dla sieci LTE
* TS 38.323 dla sieci 5G Maksymalny rozmiar zarówno SDU jak i PDU warstwy kontrolnej protokołu to 9000 bajtów (dla specyfikacji TS 38.323). 9000 bajtów (dla specyfikacji TS 38.323).
, PDCP(Packet Data Convergence Protocol)는 UM … PDCP(Packet Data Convergence Protocol)는 UMTS내 무선 트래픽 스택의 계층 중 하나이며, IP 헤더 압축 및 압축 해지, 사용자 데이터의 전송, Radio Bearer에 대한 시퀀스 번호 유지를 수행한다. 압축 기술은 RFC 2507 또는 RFC 3095에 기반한다. RFC 1144에서 기술되는 몇 가지 정보도 사용되지만 현대 TCP/IP에서는 사용되지 않는다. 만일, PDCP가 압축 없음으로 구성될 경우, PDCP는 압축없이 IP 패킷을 전송한다. PDCP는 Radio Link Control (RLC)이라 불리는 하위 계층에서 제공하는 서비스를 사용한다. PDCP 헤더는 두 개의 필드로 구성된다: PID, PDU TYPE.
* 필드는 PDU가 데이터 PDU인지 Sequence Number PDU인지를 가리킨다.
* PID 필드는 사용되는 헤더 압축 프로토콜 타입, 패킷 타입, CID를 가리킨다. 필드는 사용되는 헤더 압축 프로토콜 타입, 패킷 타입, CID를 가리킨다.
, Das Packet Data Convergence Protocol (PDCP … Das Packet Data Convergence Protocol (PDCP) ist ein im Mobilfunk auf der Luftschnittstelle eingesetztes Layer 2 Protokoll. Das Protokoll wird von 3GPP für UMTS in TS 25.323, für LTE in TS 36.323 und für 5G New Radio (NR) in TS 38.323 spezifiziert.PDCP liegt im Protokoll-Stack oberhalb der Radio Link Control (RLC)-Schicht.PDCP wird zum Übertragen von IP Daten als auch zum Übertragen von Kontrollinformationen des RRC Protokolls benutzt. PDCP bietet den höheren Schichten folgenden Funktionen an:
* Transport von Nutzinformationen (user plane data)
* Transport von Kontrollinformationen
* Komprimierung von Header-Informationen, z. B. mittels ROHC
* Verschlüsselung
* Integritätssicherung.* Verschlüsselung
* Integritätssicherung.
, Packet Data Convergence Protocol (PDCP) is … Packet Data Convergence Protocol (PDCP) is specified by 3GPP in TS 25.323 for UMTS, TS 36.323 for LTE and TS 38.323 for 5G. PDCP is located in the Radio Protocol Stack in the UMTS/LTE/5G air interface on top of the RLC layer. PDCP provides its services to the RRC and user plane upper layers, e.g. IP at the UE or to the relay at the base station. The following services are provided by PDCP to upper layers:
* transfer of user plane data;
* transfer of control plane data;
* header compression;
* ciphering;
* integrity protection. The header compression technique can be based on either IP header compression (RFC 2507) or Robust Header Compression (RFC 3095). If PDCP is configured for No Compression it will send the IP Packets without compression; otherwise it will compress the packets according to its configuration by upper layer and attach a PDCP header and send the packet. Different header formats are defined, dependent on the type of data to be transported. In LTE, there are e.g. header formats for Control Plane PDCP Data PDU with long PDCP SN (12 bits), for User plane PDCP Data PDU with short PDCP SN (7 bits) and others.DU with short PDCP SN (7 bits) and others.
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| rdfs:comment |
PDCP(Packet Data Convergence Protocol)는 UM … PDCP(Packet Data Convergence Protocol)는 UMTS내 무선 트래픽 스택의 계층 중 하나이며, IP 헤더 압축 및 압축 해지, 사용자 데이터의 전송, Radio Bearer에 대한 시퀀스 번호 유지를 수행한다. 압축 기술은 RFC 2507 또는 RFC 3095에 기반한다. RFC 1144에서 기술되는 몇 가지 정보도 사용되지만 현대 TCP/IP에서는 사용되지 않는다. 만일, PDCP가 압축 없음으로 구성될 경우, PDCP는 압축없이 IP 패킷을 전송한다. PDCP는 Radio Link Control (RLC)이라 불리는 하위 계층에서 제공하는 서비스를 사용한다. PDCP 헤더는 두 개의 필드로 구성된다: PID, PDU TYPE.
* 필드는 PDU가 데이터 PDU인지 Sequence Number PDU인지를 가리킨다.
* PID 필드는 사용되는 헤더 압축 프로토콜 타입, 패킷 타입, CID를 가리킨다. 필드는 사용되는 헤더 압축 프로토콜 타입, 패킷 타입, CID를 가리킨다.
, Packet Data Convergence Protocol (PDCP) is … Packet Data Convergence Protocol (PDCP) is specified by 3GPP in TS 25.323 for UMTS, TS 36.323 for LTE and TS 38.323 for 5G. PDCP is located in the Radio Protocol Stack in the UMTS/LTE/5G air interface on top of the RLC layer. PDCP provides its services to the RRC and user plane upper layers, e.g. IP at the UE or to the relay at the base station. The following services are provided by PDCP to upper layers:
* transfer of user plane data;
* transfer of control plane data;
* header compression;
* ciphering;
* integrity protection.on;
* ciphering;
* integrity protection.
, PDCP (ang. Packet Data Convergence Protoco … PDCP (ang. Packet Data Convergence Protocol) - protokół używany w sieciach komórkowych pracujących w standardach UMTS, LTE i 5G. PDCP znajduje się w Radiowym Stosie Protokółów, świadcząc usługi dla wyższej warstwy RRC oraz innych wyższych warstw płaszczyzny transferu danych użytkownika. Bezpośrednio pod protokołem PDCP znajduje się protokół RLC. Główne funkcjonalności dostarczane przez warstwę PDCP:
* transfer danych płaszczyzny użytkownika
* transfer danych płaszczyzny kontrolnej
* kompresja nagłówków pakietów
* szyfrowanie pakietów
* kontrola integralności pakietówakietów
* kontrola integralności pakietów
, Das Packet Data Convergence Protocol (PDCP … Das Packet Data Convergence Protocol (PDCP) ist ein im Mobilfunk auf der Luftschnittstelle eingesetztes Layer 2 Protokoll. Das Protokoll wird von 3GPP für UMTS in TS 25.323, für LTE in TS 36.323 und für 5G New Radio (NR) in TS 38.323 spezifiziert.PDCP liegt im Protokoll-Stack oberhalb der Radio Link Control (RLC)-Schicht.PDCP wird zum Übertragen von IP Daten als auch zum Übertragen von Kontrollinformationen des RRC Protokolls benutzt. PDCP bietet den höheren Schichten folgenden Funktionen an:höheren Schichten folgenden Funktionen an:
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PDCP
, Packet Data Convergence Protocol
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