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Resource Allocation for Superposition Coding

A technology for resource block allocation and time slot allocation, applied in the field of superposition coding resource allocation

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

AI Technical Summary

Problems solved by technology

[0005] When using CW-IC, in order to guarantee the successful reception of the signal in NOMA, the scheduling decision constraints of superimposed transport block (TB) resource allocation are generated

Method used

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  • Resource Allocation for Superposition Coding
  • Resource Allocation for Superposition Coding
  • Resource Allocation 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 multiple user equipments UE#1, UE#2 and a serving base station eNodeB. 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 unit of resource...

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Abstract

When the codeword level interference cancellation (CW-IC) is used at the receiver in conjunction with the superposition coding scheme at the transmitter, in order to guarantee the success of signal reception, restrictions of scheduling decisions in resource allocation of superposed transport blocks may occur. A method to mitigate the scheduling restrictions is proposed. For a low-geometry UE in NOMA operation, one sub-band is used as the basic scheduling unit. As a result, data in resource blocks scheduled for NOMA operation and data in resource blocks scheduled for other non-NOMA operation correspond to different transport blocks. Therefore, a high-geometric UE only needs to decode the data scheduled for NOMA. The base station does not need to impose additional scheduling restrictions and signaling overhead.

Description

[0001] cross reference [0002] This application claims priority to US Provisional Patent Application Serial No. 62 / 097,797, filed December 30, 2014, entitled "Resource Allocation 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 resource allocation 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 fur...

Claims

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Application Information

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IPC IPC(8): H04L5/00
CPCH04L1/1812H04W72/044H04L1/1822H04L1/0041H04L1/0048H04L5/0037H04L5/0044H04B15/00H04L5/00
Inventor 黄建华刘诗斌蔡隆盛廖怡茹
Owner HFI INNOVATION INC
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