Flow optimization method for non-real-time decoding systems
Disclosed is a flow optimization method for non-real-time decoding systems, which is applied in a wireless communication system including a transmitter and a receiver corresponding thereto. The receiver executes the non-real-time decoding method, which includes the following steps: after determining that a current subframe is a non-real-time decoding subframe, performing a NRS channel estimation of the non-real-time decoding subframe, and storing frequency domain data of the current subframe; after determining that the current subframe is a subsequent subframe adjacent to the non-real-time decoding subframe, combining the NRS channel estimation of the non-real-time decoding subframe and a NRS channel estimation of the subsequent subframe on the subsequent subframe, and then performing a data resource element channel estimation; and according to the data resource element channel estimation obtained from the combined NRS channel estimation, performing equalization, descrambling and de-rate matching on the non-real-time decoding subframe and the subsequent subframe respectively.
1 . A non-real-time decoding method, applied in a wireless communication system, the wireless communication system comprising a transmitter and a receiver corresponding thereto, the receiver executing the non-real-time decoding method, which comprising the following steps:
after determining that a current subframe is a non-real-time decoding subframe, performing a NRS (Narrowband Reference Signal) channel estimation of the non-real-time decoding subframe, and storing frequency domain data of the current subframe;
after determining that the current subframe is a subsequent subframe adjacent to the non-real-time decoding subframe, combining the NRS channel estimation of the non-real-time decoding subframe and a NRS channel estimation of the subsequent subframe on the subsequent subframe, and then performing a data resource element (RE) channel estimation; and
according to the data RE channel estimation obtained from the combined NRS channel estimation, performing equalization, descrambling and de-rate matching on the non-real-time decoding subframe and the subsequent subframe respectively.
2 . The non-real-time decoding method according to claim 1 , wherein after the step of determining that the current subframe is the non-real-time decoding subframe, the non-real-time decoding method further comprises the step of storing frequency domain data on data REs of the non-real-time decoding subframe for subsequent subframe processing.
3 . The non-real-time decoding method according to claim 1 , wherein after the step of performing the NRS channel estimation of the non-real-time decoding subframe, it is determined whether the current subframe is the subsequent subframe; if not, execution of subsequent steps is terminated.
4 . The non-real-time decoding method according to claim 1 , wherein, in the step of performing the data RE channel estimation, the combined NRS channel estimation is used for the data RE channel estimation.
5 . The non-real-time decoding method according to claim 1 , wherein, in the step of performing de-rate matching, equalized and descrambled soft information on the non-real-time decoding frame and the subsequent subframe is written into a circular buffer corresponding to interleaved data at the transmitter.
6 . The non-real-time decoding method according to claim 5 , wherein, after the step of performing de-rate matching, it is determined whether the current subframe triggers a decoding condition; and if so, the receiver continues to execute next steps.
7 . The non-real-time decoding method according to claim 6 , wherein when the receiver determines that the current subframe triggers the decoding condition, the receiver performs deinterleaving on the soft information of the circular buffer.
8 . The non-real-time decoding method according to claim 7 , wherein the receiver performs decoding on the soft information in the circular buffer after performing deinterleaving.
9 . The non-real-time decoding method according to claim 8 , wherein after performing decoding, the receiver performs a cyclic redundancy check on the decoded soft information.
10 . The non-real-time decoding method according to claim 1 , wherein, in the step of performing equalization, the receiver simultaneously processes previously stored frequency domain data adjacent to the non-real-time decoding subframe.
11 . A receiver, comprising:
a plurality of antennas, configured to receive subframes; and
a plurality of equalizers, configured to execute a non-real-time decoding method based on the subframes, wherein the non-real-time decoding method comprises the following steps:
after determining that a current subframe is a non-real-time decoding subframe, performing a NRS (Narrowband Reference Signal) channel estimation of the non-real-time decoding subframe, and storing frequency domain data of the current subframe;
after determining that the current subframe is a subsequent subframe adjacent to the non-real-time decoding subframe, combining the NRS channel estimation of the non-real-time decoding subframe and a NRS channel estimation of the subsequent subframe on the subsequent subframe, and then performing a data resource element (RE) channel estimation; and
according to the data RE channel estimation obtained from the combined NRS channel estimation, performing equalization, descrambling and de-rate matching on the non-real-time decoding subframe and the subsequent subframe respectively.
12 . The receiver according to claim 11 , wherein after determining that the current subframe is the non-real-time decoding subframe, the plurality of equalizers further store frequency domain data on data REs of the non-real-time decoding subframe for subsequent subframe processing.
13 . The receiver according to claim 11 , wherein after the plurality of equalizers perform the NRS channel estimation of the non-real-time decoding subframe, it is determined whether the current subframe is the subsequent subframe; if not, the plurality of equalizers terminate execution of subsequent steps.
14 . The receiver according to claim 11 , wherein, when the plurality of equalizers perform the data RE channel estimation, the combined NRS channel estimation is used for the data RE channel estimation.
15 . The receiver according to claim 11 , wherein, when the plurality of equalizers perform de-rate matching, equalized and descrambled soft information on the non-real-time decoding frame and the subsequent subframe is written into a circular buffer corresponding to interleaved data at a transmitter.
16 . The receiver according to claim 15 , wherein, after the plurality of equalizers perform de-rate matching, it is determined whether the current subframe triggers a decoding condition; and if so, the plurality of equalizers continues to execute next steps.
17 . The receiver according to claim 16 , wherein when the plurality of equalizers determine that the current subframe triggers the decoding condition, the plurality of equalizers perform deinterleaving on the soft information of the circular buffer.
18 . The receiver according to claim 17 , wherein the plurality of equalizers perform decoding on the soft information in the circular buffer after performing deinterleaving.
19 . The receiver according to claim 18 , wherein after performing decoding, the plurality of equalizers perform a cyclic redundancy check on the decoded soft information.
20 . The receiver according to claim 19 , wherein, when the plurality of equalizers perform equalization, the plurality of equalizers simultaneously process previously stored frequency domain data adjacent to the non-real-time decoding subframe.