Data receiving apparatus and method having blind deconvolution mechanism

1 . A data receiving apparatus having blind deconvolution mechanism comprising:

a descrambling circuit configured to descramble received data received from an antenna according to an antenna assumption of the antenna and N data position assumptions within a transmission period to generate N groups of soft-bit data, wherein the received data is generated according to a convolution encoding process and comprises N data sub-blocks within the transmission period, the N data position assumptions in turn assume that a first data sub-block of the received data is a first original data sub-block of original data to that the first data sub-block is an N-th original data sub-block of the original data;

a storage circuit comprising N circular buffers each having a unit encoding length;

a soft-bit processing circuit configured to retrieve bit position information corresponding to the unit encoding length to determine a plurality of non-variable bit positions and a plurality of variable bit positions to perform a blind deconvolution process comprising:

storing and superimposing the N groups of soft-bit data corresponding to the N data position assumptions in a circular manner to generate N groups of superimposed results by the N circular buffers of the storage circuit; and

determining that a new assumed transmission period starts to keeping data corresponding to the non-variable bit positions in the N circular buffers and clearing data corresponding to the variable bit positions in the N circular buffers; and

a post-processing circuit configured to perform de-interleaving and decoding on the N groups of superimposed results of each of data sub-blocks to generate N groups of decoded results to perform redundancy check on the N groups of decoded results to generate N checked results;

wherein the soft-bit processing circuit determines that any one group of the N groups of decoded results passes the redundancy check according to the N checked results to outputs the group of decoded results that pass the redundancy check.

2 . The data receiving apparatus of claim 1 , wherein the soft-bit processing circuit determines that the N groups of decoded results do not pass the redundancy check according to the N checked results to keeps performing the blind deconvolution process to superimpose the N groups of soft-bit data by using the N circular buffers.

3 . The data receiving apparatus of claim 1 , wherein each group of the N groups of soft-bit data is a log-likelihood ratio (LLR).

4 . The data receiving apparatus of claim 1 , wherein the antenna assumption assumes a number of the antenna to be M such that, a number of the storage circuits comprised by the data receiving apparatus is M, and the descrambling circuit performs descrambling on the M antennas assumed based on the antenna assumption and the N data position assumptions to generate the soft-bit data having a number of M×N, the soft-bit processing circuit stores and superimposes the M×N soft-bit data in the circular manner by using the N circular buffers of each the M storage circuits to generate the M×N groups of superimposed results.

5 . The data receiving apparatus of claim 1 , wherein the convolution encoding process comprises a check code attaching process, a channel encoding process, an interleaving process, a rate-matching process and a scrambling process performed by a data transmission apparatus that transmits the received data, and the bit position information is generated according to an interleaving algorithm of the interleaving process.

6 . The data receiving apparatus of claim 1 , wherein the post-processing circuit comprises:

a deinterleaving circuit configured to perform deinterleaving on the group of superimposed results of each of the data sub-blocks to generate N groups of deinterleaving results;

a decoding circuit configured to perform decoding on the N groups of deinterleaving results to generate N groups of the decoded results; and

a checking circuit configured to check the N groups of decoded results to generate and transmit the N checked results to the soft-bit processing circuit.

7 . The data receiving apparatus of claim 1 , further comprising a channel estimation circuit and an equalizing circuit configured to perform channel estimation and equalization on the received data and transmit the estimated and equalized received data to the descrambling circuit.

8 . The data receiving apparatus of claim 1 , wherein a length of the transmission period is 640 milliseconds.

9 . The data receiving apparatus of claim 8 , wherein the length of the transmission period comprises the 8 data sub-blocks each having 200 bits and the unit encoding length is 150 bits.

10 . A data receiving method having blind deconvolution mechanism used in a data receiving apparatus, comprising:

descrambling received data received from an antenna by a descrambling circuit according to an antenna assumption of the antenna and N data position assumptions within a transmission period to generate N groups of soft-bit data, wherein the received data is generated according to a convolution encoding process and comprises N data sub-blocks within the transmission period, the N data position assumptions in turn assume that a first data sub-block of the received data is a first original data sub-block of original data to that the first data sub-block is an N-th original data sub-block of the original data;

retrieving bit position information corresponding to the unit encoding length by a soft-bit processing circuit to determine a plurality of non-variable bit positions and a plurality of variable bit positions

performing a blind deconvolution process by the soft-bit processing circuit that comprises:

storing and superimposing the N groups of soft-bit data corresponding to the N data position assumptions in a circular manner by using N circular buffers each having a unit encoding length comprised by a storage circuit to generate N groups of superimposed results by the soft-bit processing circuit; and

determining that a new assumed transmission period starts to keep data corresponding to the non-variable bit positions in the N circular buffers and clear data corresponding to the variable bit positions in the N circular buffers;

performing de-interleaving and decoding on the N groups of superimposed results of each of data sub-blocks by a post-processing circuit to generate N groups of decoded results to perform redundancy check on the N groups of decoded results to generate N checked results; and

determining that any one group of the N groups of decoded results passes the redundancy check according to the N checked results to output the group of decoded results that pass the redundancy check by the soft-bit processing circuit.

11 . The data receiving method of claim 10 , further comprising:

determining that the N groups of decoded results do not pass the redundancy check according to the N checked results to keeps performing the blind deconvolution process to superimpose the N groups of soft-bit data by using the N circular buffers by the soft-bit processing circuit.

12 . The data receiving method of claim 10 , wherein each group of the N groups of soft-bit data is a log-likelihood ratio (LLR).

13 . The data receiving method of claim 10 , wherein the antenna assumption assumes a number of the antenna to be M such that a number of the storage circuits comprised by the data receiving apparatus is M, the data receiving method further comprises:

performing descrambling on the M antennas assumed based on the antenna assumption and the N data position assumptions by the descrambling circuit to generate the soft-bit data having a number of M×N; and

storing and superimposing the M×N soft-bit data in the circular manner by using the N circular buffers of each the M storage circuits by the soft-bit processing circuit to generate the M×N groups of superimposed results.

14 . The data receiving method of claim 10 , wherein the convolution encoding process comprises a check code attaching process, a channel encoding process, an interleaving process, a rate-matching process and a scrambling process performed by a data transmission apparatus that transmits the received data, and the bit position information is generated according to an interleaving algorithm of the interleaving process.

15 . The data receiving method of claim 10 , further comprising:

performing deinterleaving on the group of superimposed results of each of the data sub-blocks by a deinterleaving circuit comprised by the post-processing circuit to generate N groups of deinterleaving results;

performing decoding on the N groups of deinterleaving results by a decoding circuit comprised by the post-processing circuit to generate N groups of the decoded results; and

checking the N groups of decoded results by a checking circuit comprised by the post-processing circuit to generate and transmit the N checked results to the soft-bit processing circuit.

16 . The data receiving method of claim 10 , further comprising:

performing channel estimation and equalization on the received data respectively by a channel estimation circuit and an equalizing circuit; and

transmitting the estimated and equalized received data to the descrambling circuit.

17 . The data receiving method of claim 10 , wherein a length of the transmission period is 640 milliseconds.

18 . The data receiving method of claim 17 , wherein the length of the transmission period comprises the 8 data sub-blocks each having 200 bits and the unit encoding length is 150 bits.