Data transmission method and data transmission system
A data transmission method and system for enhanced channel coding efficiency of a DisplayPort interface is disclosed. One method comprises transmitting a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises: a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein in is 2 or 4; and an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates a content type of the m symbol chunks.
1. A data transmission method for enhanced channel coding efficiency of a DisplayPort interface, the method comprising:
transmitting a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises
a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein m is 2 or 4, each symbol chunk having each content type; and
an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates the content type of the m symbol chunks.
2. The method of claim 1 , wherein
the content type is a data link symbol, or one or more of a control link symbol, a Reed Solomon (RS) parity symbol and a PHY sync symbol.
3. The method of claim 1 , wherein
eight coding units per lane are transmitted for each micro-packet in each of four lanes of the DisplayPort Main Link.
4. The method of claim 1 , wherein
16 coding units per lane are transmitted for each micro-packet in each of two lanes of the DisplayPort Main Link.
5. The method of claim 1 , wherein
32 coding units per lane are transmitted for each micro-packet in a single lane of the DisplayPort Main Link.
6. A data reception method for enhanced channel coding efficiency of a DisplayPort interface, the method comprising:
receiving a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises
a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein m is 2 or 4, each symbol chunk having each content type; and
an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates the content type of the m symbol chunks.
7. The method of claim 6 , wherein
the content type is a data link symbol, or one or more of a control link symbol, a Reed Solomon (RS) parity symbol and a PHY sync symbol.
8. The method of claim 6 , wherein
eight coding units per lane are received for each micro-packet in each of four lanes of the DisplayPort Main Link.
9. The method of claim 6 , wherein
16 coding units per lane are received for each micro-packet in each of two lanes of the DisplayPort Main Link.
10. The method according to claim 6 , wherein
32 coding units per lane are received for each micro-packet in a single lane of the DisplayPort Main Link.
11. A transmission device for a DisplayPort interface comprising:
one or more lane serializer-drivers; and
a PHY logical sub-layer configured to arrange and transmit stream data to the one or more lane serializer-drivers, wherein the stream data comprises a plurality of coding units for each micro-packet directed to each of the one or more lane serializer-drivers, and wherein each of the coding units comprises
a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein m is 2 or 4, each symbol chunk having each content type; and
an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates the content type of the m symbol chunks.
12. The transmission device of claim 11 , wherein
the content type is a data link symbol, or one or more of a control link symbol, a Reed Solomon (RS) parity symbol and a PHY sync symbol.
13. The transmission device of claim 11 , wherein
eight coding units per lane are transmitted for each micro-packet in each of four lanes of the DisplayPort Main Link.
14. The transmission device of claim 11 , wherein
16 coding units per lane are transmitted for each micro-packet in each of two lanes of the DisplayPort Main Link.
15. The transmission device of claim 11 , wherein
32 coding units per lane are transmitted for each micro-packet in a single lane of the DisplayPort Main Link.
16. The transmission device of claim 11 , further comprising:
one or more High-bandwidth Digital Content Protection (HDCP) encryption circuits communicatively coupled to the PHY logical sub-layer element for encrypting stream data.
17. The transmission device of claim 11 , wherein
the PHY logical sub-layer is further configured to perform Reed Solomon Forward Error Correction on the stream data.
18. A reception device for a DisplayPort interface comprising:
a receiver configured to receive a plurality of coding units for each micro-packet in each of one or more lanes of a DisplayPort Main Link from a DisplayPort transmitter, wherein each of the coding units comprises
a group of m symbol chunks, each symbol chunk including four 8-bit symbols, wherein m is 2 or 4, each symbol chunk having each content type; and
an n-bit code data indicator that precedes the group of m-symbol chunks, wherein n is 2 or 4, and wherein the n-bit code data indicator indicates the content type of the m symbol chunks.
19. The reception device of claim 18 , wherein
the content type is a data link symbol, or one or more of a control link symbol, a Reed Solomon (RS) parity symbol and a PHY sync symbol.
20. The reception device of claim 18 , wherein
eight coding units per lane are received for each micro-packet in each of four lanes of the DisplayPort Main Link.
21. The reception device of claim 18 , wherein
16 coding units per lane are received for each micro-packet in each of two lanes of the DisplayPort Main Link.
22. The reception device of claim 18 , wherein
32 coding units per lane are received for each micro-packet in a single lane of the DisplayPort Main Link.