Method for enhancing bluetooth transmission speed and robustness of emitting end and receiving end of communication system
View Patent ↗A method for enhancing the Bluetooth transmission speed and robustness of an emitting end and a receiving end is provided. The method is utilized in a system having an emitting end and a receiving end, wherein at least one of the emitting and receiving ends is provided with BlueSPEED-PSK or BlueSPEED-DELTA-PSK (adapted Gray coded D16PSK) modulation with optional FEC.
1. A method for enhancing Bluetooth transmission speed and robustness of an emitting end and a receiving end of a communication system, wherein at least one of the emitting and receiving ends is provided with BlueSPEED technology: BlueSPEED-PSK/BlueSPEED-DELTA-PSK (Pulse Shift Keying), wherein in case that BlueSPEED technology is utilized at the emitting and receiving ends, the method includes the following steps:
modulating a bit stream of a plurality of bits at the emitting end, which comprises the steps of:
forming 4-bit symbols sequentially from every consecutive 4 bits in the bit stream,
searching and obtaining the phase information corresponding to the respective 4-bit symbols according to the BlueSPEED-PSK or BlueSPEED-DELTA-PSK, and
forming data packets containing the respective phase information;
transmitting the data packets at the emitting end;
receiving the data packets at the receiving end; and
de-modulating the data packets at the receiving end, which includes the steps of:
reading the respective phase information in the data packet,
searching and obtaining the 4-bit symbols corresponding to the respective phase information according to BlueSPEED-PSK or BlueSPEED-DELTA-PSK,
interpreting the 4 bits contained in the respective 4-bits symbols, and
identifying BlueSPEED-PSK and BlueSPEED-DELTA-PSK transmission using (4-bits) CRC (cyclic redundancy check) applied to blocks of bits formed by every 4th bit in the bit stream.
2. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 1 , wherein the BlueSPEED-PSK is a Gray-coded Differentially 16-Phase Shift Keying (D16PSK) modulation, D16PSK being Pulse Shift Keying rotated by −π/16.
3. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 1 , further comprising:
before the step of forming 4-bits symbols sequentially from every consecutive 4 its in the bit stream, applying a (4-bits) CRC (cyclic redundancy check) to a block of bits formed by every 4th bit in the bit stream.
4. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 1 , further comprising:
before the step of forming 4-bits symbols sequentially from every consecutive 4 bits in the bit stream, applying a BCH(48,36,2)(Bose Chaudhuri Hocquenghem) code to a block of bits formed by every 4th bit in the bit stream.
5. A method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system, wherein in case that BlueSPEED technology of BlueSPEED-PSK (Pulse Shift Keying) or BlueSPEED-DELTA-PSK modulation is utilized at the emitting end, and the technology of D8PSK is utilized at the receiving end, the method includes the following steps:
modulating a bit stream of a plurality of bits at the emitting end, comprising the following steps:
forming 4-bits symbols sequentially from every consecutive 4 bits in the bit stream;
searching and obtaining the phase information corresponding to the respective 4-bits symbols according to the BlueSPEED-PSK or BlueSPEED-DELTA-PSK; and
forming data packets containing the respective phase information;
transmitting the data packets at the emitting end;
receiving the data packets at the receiving end; and
de-modulating the data packets at the receiving end, including the following steps:
reading the respective phase information in the data packet;
searching and obtaining the 3-bit symbols corresponding to the respective phase information according to the D8PSK, the respective 3-bit symbols are composed of 3 bits; and
interpreting the 3 bit contained in the respective 3-bit symbols;
wherein the 3 bit in the respective 3-bit symbols are the same as the 3 MSB bits of the respective 4-bits symbols transmitted by the emitting end.
6. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 5 , wherein the BlueSPEED-PSK is a Gray-coded D16PSK modulation, D16PSK being Pulse Shift Keying rotated by −π/16.
7. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 5 , further comprising:
before the step of forming 4-bits symbols sequentially from every consecutive 4 bits in the bit stream, applying a (4-bits) CRC (cyclic redundancy check) to a block a bits formed by every 4th bit in the bit stream.
8. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 5 , further comprising:
before the step forming 4-bits symbols sequentially from every consecutive 4 bits in the bit stream, applying a BCH(48,36,2)(Bose Chaudhuri Hocquenghem) code to a block a bits formed by every 4th bit in the bit stream.
9. A method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system, wherein in case that the technology of D8PSK is utilized at the emitting end and the BlueSPEED technology (BlueSPEED-PSK or BlueSPEED-DELTA-PSK demodulation) is utilized at the receiving end of a communication system, the method of the invention includes the following steps:
modulating a bit stream of a plurality of bits at the emitting end, comprising the following steps:
forming 3-bit symbols sequentially from every consecutive 3 bit in the bit stream,
searching and obtaining the phase information corresponding to the respective 3-bit symbols according to the D8PSK, and
forming data packets containing the respective phase information;
transmitting the data packets at the emitting end;
receiving the data packets at the receiving end; and
de-modulating the data packets at the receiving end, including the following steps:
reading the respective phase information in the data packet,
searching and obtaining the 4-bits symbols corresponding to the respective phase information according to BlueSPEED-PSK or BlueSPEED-DELTA-PSK,
interpreting the 4 bits contained in the respective 4-bits symbols,
identifying BlueSPEED-PSK and BlueSPEED-DELTA-PSK transmission using the (4-bits) CRC applied to blocks of bits formed by every 4th bit in the bit stream, and
obtaining 3 MSB bits from 4-bits symbols,
wherein the obtained 3 bit from 4-bits symbols are the same as the 3 bit of the respective 3-bit symbols transmitted by the emitting end.
10. The method for enabling Bluetooth transmission of an emitting end and a receiving end of a communication system as claimed in claim 9 , wherein the BlueSPEED-PSK is a Gray-coded D16PSK modulation, D16PSK being Pulse Shift Keying rotated by −π/16.