Soft packet combining for superposition coding

A new data and coded technology, applied in the field of superimposed coded soft buffer combination, can solve the problem that the user does not know, does not know the interference TB, etc.

Active Publication Date: 2016-09-07
HFI INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the user performing CW-IC does not know whether the interfering TB is a new one-way transmission TB or a retransmission TB, the user does not know whether to perform the soft packet combining operation for the interfering TB

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  • Soft packet combining for superposition coding
  • Soft packet combining for superposition coding
  • Soft packet combining for superposition coding

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Embodiment Construction

[0020] The embodiments of the invention and the examples described in the accompanying drawings will be referred to as details of the invention.

[0021] figure 1 A mobile communication network 100 with superposition coding is described in accordance with novel aspects. The mobile communication network 100 is an Orthogonal Frequency Division Multiplexing (OFDM) network, which includes a plurality of user equipments UE 101 , UE 102 and a serving base station eNB 104 . In the 3GPP LTE system based on Orthogonal Frequency Division Multiple Access (OFDMA) downlink, radio resources are divided into multiple subframes in the time domain, where each subframe contains two time slots ( slot) and each slot has 7 OFDMA symbols in the case of a normal cyclic prefix (Cyclic Prefix, CP), and has 6 OFDMA symbols in each slot in the case of an extended CP. Each OFDMA symbol further includes multiple OFDMA subcarriers in the frequency domain according to the system bandwidth. The basic uni...

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Abstract

A method is proposed to enable a UE (user equipment) performing codeword level interference cancellation (CW-IC) to know whether an interfering transport block (TB) is a new transmission or retransmission. With this knowledge, the UE knows whether soft channel bits stored in a soft buffer are to be discarded or combined with the soft channel bits newly obtained.

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Patent Application No. 62 / 097,803, filed December 30, 2014, and entitled "Soft Packet Combining for Superposition Coding." The aforementioned US Provisional Patent Application is hereby incorporated by reference. technical field [0003] The invention relates to a mobile communication network. In particular, the present invention relates to a soft buffer combining technique of superposition coding. Background technique [0004] In wireless cellular communication systems, multiuser multiple-input multiple-output (MU-MIMO) is a promising technology to significantly increase cell capacity. In MU-MIMO, signals desired by different users are transmitted simultaneously with orthogonal (or quasi-orthogonal) precoders. Moreover, from the perspective of transmitter and receiver, even if the transmission / precoding is non-orthogonal, the joint optimization concept of multi-user operation can still ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/08H04B7/04
CPCH04L5/0023H04L5/0055H04L1/1822H04L49/9057H04L1/1845H04L1/1835H04L1/1607H04J11/004H04B15/00H04L1/1812
Inventor 黄建华廖怡茹刘诗斌蔡隆盛
Owner HFI INNOVATION INC
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