MAC Protocol based on Spreading Code Status-Sensing Scheme for Integrated Voice/Data Services

확산코드 상태 감지 기법에 의한 통합 음성/데이터 서비스 MAC 프로토콜

  • 임인택 (부산외국어대학교 컴퓨터전자공학부)
  • Published : 2001.09.01


A medium access control protocol is proposed for integrated voice and data services in the packet CDMA network with a small coverage. Uplink channels are composed of time slots and multiple spreading codes for each slot. This protocol gives higher access priority to the delay-sensitive voice traffic than to the data traffic. During a talkspurt, voice terminals reserve a spreading code to transmit multiple voice packets. On the other hand, whenever generating a data packet, data terminals transmit a packet based on the status Information of spreading codes in the current slot, which is received from base station. In this protocol, voice packet does not come into collision with data packet. Therefore, this protocol can increase the maximum number of voice terminals.