Apparatus and method for receiving and sending ends of wireless communication system, and soft information estimator
AssigneeSony Corporation
InventorsJian Dang, Jianqing DOU, Yu SHI, Zaichen ZHANG, Liang WU, Penshun LU
Life of this patent
Estimating the term…
Abstract
Provided are an apparatus and method for a sending end and a receiving end of a wireless communication system, and a soft information estimator. The apparatus for the sending end of the wireless communication system comprises: an interleave division multiple access unit configured to perform interleave processing on information to be sent; and a filter bank multi-carrier unit configured to use a specific sub-carrier chosen in advance to transmit the interleaved information in a parallel manner.
Claims26
An apparatus for a transmitting end of a wireless communication system, comprising:
- an interleave division multiple access unit, configured to perform interleaving processing on information to be transmitted;
- and
- a filter bank multi-carrier unit, configured to transmit the interleaved information in parallel using particular pre-selected sub-carriers.
An apparatus for a receiving end in a wireless communication system, comprising:
- a soft information estimator, configured to calculate, based on received data and apriori statistical information of a real part and an imaginary part of each group of code chip for each user, external soft information of the real part and the imaginary part of the code chip respectively, wherein the apriori statistical information is acquired based on apriori soft information of the code chip, and an initial value of the apriori soft information is zero;
- an updating unit, configured to update, based on the external soft information, the apriori soft information corresponding to the code chip of the user, calculate, based on the updated apriori soft information, the apriori statistical information corresponding to the code chip of the user, and provide the calculated apriori statistical information to the soft information estimator to update the apriori statistical information;
- an iteration control unit, configured to control the soft information estimator and the updating unit to perform iteration operations, until a predetermined condition is met;
- and
- a decision unit, configured to perform hard decision based on the external soft information of the code chip in a case that the predetermined condition is met.
A soft information estimator, configured to:
- calculate, based on received data and apriori statistical information of a real part and an imaginary part of each group of code chip for each user, external soft information of the real part and the imaginary part of the code chip respectively, wherein the apriori statistical information is acquired based on apriori soft information of the code chip, and an initial value of the apriori soft information is zero.
A method for a transmitting end of a wireless communication system, comprising:
- performing interleaving processing on information to be transmitted;
- and
- transmitting the interleaved information in parallel using particular pre-selected sub-carriers.
A method for a receiving end of a wireless communication system, comprising:
- calculating, based on received data and apriori statistical information of a real part and an imaginary part of each group of code chip for each user, external soft information of the real part and the imaginary part of the code chip respectively, wherein the apriori statistical information is acquired based on apriori soft information of the code chip, and an initial value of the apriori soft information is zero;
- updating, based on the external soft information, the apriori soft information corresponding to the code chip of the user, and calculating, based on the updated apriori soft information, the apriori statistical information corresponding to the code chip of the user;
- iterating the above processing until a predetermined condition is met;
- and
- performing hard decision based on the external soft information of the code chip in a case that the predetermined condition is met.
Dependencies are inferred from the claim text.