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Assistance info and ue feedback for interference cancellation friendly new air interface

A technology for user equipment and auxiliary information, which is applied in the direction of link quality-based transmission modification, wireless communication, signaling allocation, etc., and can solve problems such as inter-cell interference and interference.

Inactive Publication Date: 2017-09-26
HFI INNOVATION INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also other interference problems in cellular networks, such as inter-cell interference from adjacent cells that may be encountered by cell-edge users, and DL-to-UL interference caused by dynamic Time Division Duplex (TDD) configurations. ) and UL to DL (UL-to-DL) interference

Method used

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  • Assistance info and ue feedback for interference cancellation friendly new air interface
  • Assistance info and ue feedback for interference cancellation friendly new air interface
  • Assistance info and ue feedback for interference cancellation friendly new air interface

Examples

Experimental program
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Embodiment Construction

[0028] Some embodiments of the invention will now be described in detail, some examples of which are illustrated in the accompanying drawings.

[0029] figure 1 is a schematic diagram of a mobile communication network 100 for a novel IC-friendly air interface in accordance with one novel aspect. The mobile communication network 100 is an OFDM network, including multiple user equipments: UE 101 , UE 102 , UE 103 , serving base station eNB 104 and neighboring base station eNB 105 . In the OFDMA downlink-based 3GPP LTE system, radio resources are divided into multiple subframes in the time domain, each subframe includes two slots, and each slot is in the normal Cyclic Prefix (Cyclic Prefix) , 7 OFDMA symbols in case of CP, or 6 OFDMA symbols in case of extended CP. Based on the system bandwidth, each OFDMA symbol further includes some OFDMA subcarriers in the frequency domain. A basic unit of a resource grid is called a resource element, which spans one OFDMA subcarrier on on...

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Abstract

A new air interface that is interference cancellation friendly is proposed. In one novel aspect, addition information is provided between eNB and UE for interference cancellation. From eNB perspective, it provides assistance information to UEs for CWIC. The assistance information may include modulation order and code rate information of the PDSCH for data transmission that may cause interference to other UEs. From UE perspective, it provides feedback information to the eNB for MCS level assignment. The feedback information may include additional channel quality and interference condition information of a data transmission of a desired transport block with respect to the decoding of the desired transport block.

Description

[0001] cross reference [0002] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Application 62 / 251,787, filed November 6, 2015, entitled "InterferenceCancellation Friendly New Air Interface," and claims priority to the application filed on November 2, 2016 Priority of US application 15 / 341,879, and the above application is incorporated by reference. technical field [0003] The present invention relates to mobile communication networks and in particular to Resource Element (RE) mapping for a new type of interference cancellation (IC) friendly air interface. Background technique [0004] In wireless cellular communication systems, multiuser multiple-input multiple-output (MU-MIMO) is a promising technology that can significantly increase cell capacity. In MU-MIMO, signals intended for different users are transmitted simultaneously using orthogonal (or quasi-orthogonal) precoders. Not only that, the joint optimization concept for multi-user operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L1/0026H04L1/0009H04L1/0041H04L1/0045H04B7/0452H04L1/0003H04W72/542H04W72/23H04L5/0055H04L5/0057H04L5/14
Inventor 黄建华蔡隆盛廖怡茹余仓纬廖培凯
Owner HFI INNOVATION INC