JPS6436234A - Spread spectrum communication system - Google Patents
Spread spectrum communication systemInfo
- Publication number
- JPS6436234A JPS6436234A JP62192217A JP19221787A JPS6436234A JP S6436234 A JPS6436234 A JP S6436234A JP 62192217 A JP62192217 A JP 62192217A JP 19221787 A JP19221787 A JP 19221787A JP S6436234 A JPS6436234 A JP S6436234A
- Authority
- JP
- Japan
- Prior art keywords
- packet
- section
- error correction
- check sum
- reception
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To improve the transmission efficiency while enhancing the error correction capability by constituting each packet by plural blocks in processing a digital data to be sent as a packet by a packet composition control section and providing at least a text section and a check sum section to each block. CONSTITUTION:In converting the transmission data into a packet data by a packet composition control section 2, the data is constituted by plural blocks each comprising a text section and a check sum section. Since the test section of each block is short, a short check sum length is enough even when a high error detection and correction capability is given by a packet decomposition control section of a reception modem. Through the constitution of the packet format shown in figure, since the IC on market is used for the error correction of the packet decomposition control section, the reception section is constituted inexpensively. Moreover, the similar error correction capability to that of the long text section with a long check sum section is obtained. Even when the error correction is not processed excellently at the reception side, it is not required to resend the entire packet, and only the block corrected correctly as the result of reception and then stored, and when all the blocks are arranged, the packet is received correctly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192217A JPS6436234A (en) | 1987-07-31 | 1987-07-31 | Spread spectrum communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62192217A JPS6436234A (en) | 1987-07-31 | 1987-07-31 | Spread spectrum communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6436234A true JPS6436234A (en) | 1989-02-07 |
Family
ID=16287609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62192217A Pending JPS6436234A (en) | 1987-07-31 | 1987-07-31 | Spread spectrum communication system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6436234A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997016044A1 (en) * | 1995-10-24 | 1997-05-01 | Ntt Mobile Communications Network Inc. | Retransmission control method for cdma mobile communication |
JPH10263162A (en) * | 1998-05-01 | 1998-10-06 | Sankyo Kk | Game machine |
-
1987
- 1987-07-31 JP JP62192217A patent/JPS6436234A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997016044A1 (en) * | 1995-10-24 | 1997-05-01 | Ntt Mobile Communications Network Inc. | Retransmission control method for cdma mobile communication |
JPH10263162A (en) * | 1998-05-01 | 1998-10-06 | Sankyo Kk | Game machine |
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