Transmission method using parity packets, transmitter and repeater

• US 10,560,224 B2
• Filed: 03/02/2017
• Issued: 02/11/2020
• Est. Priority Date: 10/28/2009
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Inventors: Murakami, Yutaka
• Primary Examiner(s): Chase, Shelly A
• Application Number:
  US15/447,296
• Publication Number:
  US 20170180083A1
• Time in Patent Office: 1,076 Days
• CPC Class Codes: G06F 11/10 Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0068 by puncturing
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1845 Combining techniques, e.g. code combining
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 2001/0097 Relays

Abstract

Provided is a transmission method executed by a transmitting apparatus to transmit a content to a plurality of terminals. The content having transmission count information indicating a number of times the content is to be transmitted by the transmitting apparatus. The transmission method including a first transmission step of generating and transmitting a first transmission signal which transfers at least a first portion of a plurality of data packets including a plurality of content packets, storing data of the content therein, and a plurality of parity packets, generated from the content packets, and a second transmission step of, when the transmission count information of the content indicates a plurality of times, generating a second transmission signal including at least a second portion of the plurality of data packets, and transmitting the second transmission signal during a period which differs from a period during which the first transmission signal is transmitted.

Claims

1. A transmission method, executed by a transmitting apparatus, for multicasting or broadcasting a content to receivers, the transmission method comprising:

generating data packets and parity packets by performing a Forward Error Correction coding on data of the content, the data of the content being non-real time data, the data packets including the data of the content, the parity packets including parity data used for repairing the data of the content, separated time intervals including a first time interval and a second time interval being provided for transmitting the content;

transmitting the data packets and the parity packets during the first time interval; and

transmitting the data packets and the parity packets during the second time interval.

2. The transmission method according to the claim 1, wherein

the data of the content is a concatenation of a first object and a second object.

3. A transmission apparatus for multicasting or broadcasting a content to receivers, the transmission apparatus comprising:

a processor that, in operation, generates data packets and parity packets by performing a Forward Error Correction coding on data of the content, the data of the content being non-real time data, the data packets including the data of the content, the parity packets including parity data used for repairing the data of the content, separated time intervals including a first time interval and a second time interval being provided for transmitting the content; and

a transmitter that, in operation, transmits the data packets and the parity packets during the first time interval, and transmits the data packets and the parity packets during the second time interval.

4. The transmission apparatus according to the claim 3, wherein

the data of the content is a concatenation of a first object and a second object.