发明名称 WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION DEVICE, AND WIRELESS COMMUNICATION METHOD
摘要 In a wireless communication system, a wireless transmitter generates a TS packet that includes a PCR value based on a timer value for a time preceding an offset time from start time of a PCR time slot and transfers a wireless frame that includes the TS packet with the PCR value at start time of the PCR time slot. The wireless receiver receives the wireless frame that includes the TS packet with the PCR value at the PCR time slot, measures propagation time of the wireless frame between the start time of the PCR time slot and time when the wireless frame that includes the TS packet with the PCR value is received, obtains sum of the offset time and the propagation time as delay time of the PCR value, and adjusts its timer value based on the PCR value acquired from the wireless frame and the obtained delay time.
申请公布号 US2015071281(A1) 申请公布日期 2015.03.12
申请号 US201414479442 申请日期 2014.09.08
申请人 Shiotani Yoshimitsu 发明人 Shiotani Yoshimitsu
分类号 H04W56/00;H04L12/841 主分类号 H04W56/00
代理机构 代理人
主权项 1. A wireless communication system, comprising: a wireless transmitter to transfer a TS packet of MPEG-2 wirelessly; and a wireless receiver to receive the TS packet of MPEG-2 wirelessly, wherein the wireless transmitter and the wireless receiver communicate with each other in synchronization with a predetermined series of time slots, the series of time slots including a PCR time slot allotted to a predetermined number of time slots for transferring a PCR value from the wireless transmitter to the wireless receiver, the wireless transmitter generates the TS packet that includes the PCR value based on a tinier value of the wireless transmitter for a time preceding a predetermined offset time from start time of one PCR time slot, and transfers a wireless frame that includes the TS packet with the PCR value at start time of the PCR time slot, and the wireless receiver receives the wireless frame that includes the TS packet with the PCR value at the PCR time slot, measures propagation tune of the wireless frame between the start time of the PCR time slot in which the wireless frame that includes the TS packet with the PCR value is received and time when the wireless frame that includes the TS packet with the PCR value is received, obtains a delay time of the PCR value from the sum of the offset time and the propagation time, and adjusts a timer value of the wireless receiver based on the PCR value acquired from the wireless frame and the obtained delay time.
地址 Kanagawa JP