A METHOD AND SYSTEM FOR HANDLING AUDIO PACKETS DURING A VOLTE CALL

A method and a system for handling audio packets in a Voice over Long Term Evolution (VoLTE) call by a User Equipment (UE) when Robust Header Compression (ROHC) is enabled are provided. The Transmission Control Protocol/Internet Protocol (TCP/IP) layer provides the VoLTE call properties to the ROHC...

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Bibliographische Detailangaben
Hauptverfasser:	KAMMA BABU GANESH, KOTHARI MAHESHCHAND HARSH, KABADI KUMAR AJAY, SHAIK ABDULLA, CHEBOLU PRAVEEN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A method and a system for handling audio packets in a Voice over Long Term Evolution (VoLTE) call by a User Equipment (UE) when Robust Header Compression (ROHC) is enabled are provided. The Transmission Control Protocol/Internet Protocol (TCP/IP) layer provides the VoLTE call properties to the ROHC compressor. The TCP/IP layer receives the audio packets from audio engine and sends the Real-time Transport Protocol (RTP) packets to a ROHC compressor. Further, the ROHC compressor compresses the Internet Protocol/User Datagram Protocol (IP/UDP) headers and a RTP header. The ROHC compressor sends the compressed RTP data along with a payload to the network in the UpLink (UL) data path. During DownLink (DL) data path, ROHC decompressor receives compressed ROHC packet from network. The ROHC decompressor ignores the construction of IP/UDP headers for the compressed data. ROHC(Robust Header Compression)가 활성화되었을 때, 사용자 장치에 의해 VoLTE(Voice over Long Term Evolution) 통화에서 오디오 패킷을 처리하기 위한 방법 및 시스템이 제공된다. TCP/IP(Transmission Control Protocol/Internet Protocol) 계층은 VoLTE 통화 속성을 ROHC 압축기에 제공한다. TCP/IP 계층은 오디오 엔진으로부터 오디오 패킷을 수신하고, RTP(Real-time Transport Protocol) 패킷을 ROHC 압축기로 제공한다. 또한, ROHC 압축기는 IP/UDP(Internet Protocol/ User Datagram Protocol) 헤더 및 RTP 헤더를 압축한다. ROHC 압축기는 압축된 RTP 데이터를 페이로드와 함께 상향링크 데이터 경로에서 네트워크로 전송한다. 하향링크 데이터 경로에서, ROHC 압축해제기는 네트워크로부터 압축된 ROHC 패킷을 수신한다. ROHC 압축해제기는 압축된 데이터를 위하여 IP/UDP 헤더의 구성을 무시한다.