Systems and methods utilizing an efficient TBS table design for 256QAM in a cellular communications network

A technology of cellular communication network and 256QAM, applied in the field of cellular communication network, can solve the problems of increasing the complexity and cost of LTE network and UE implementation

Active Publication Date: 2017-02-22
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Supporting these higher order modulation schemes can significantly increase the implementation complexity and cost of the LTE network as well as the UE

Method used

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  • Systems and methods utilizing an efficient TBS table design for 256QAM in a cellular communications network
  • Systems and methods utilizing an efficient TBS table design for 256QAM in a cellular communications network
  • Systems and methods utilizing an efficient TBS table design for 256QAM in a cellular communications network

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Embodiment Construction

[0118] The embodiments explained below represent information that enables those skilled in the art to implement the embodiments, and illustrate the best mode for implementing the embodiments. After reading the following description in accordance with the accompanying drawings, those skilled in the art will understand the concepts of the present disclosure and will recognize the applications of these concepts that are not specifically addressed in this document. It should be understood that these concepts and applications fall within the scope of the present disclosure and the appended claims.

[0119] Disclosed are systems and methods related to supporting 256 Quadrature Amplitude Modulation (QAM) in a 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) network in particular in a cellular communication network. More specifically, a system and method for designing using an effective transport block size (TBS) table supporting 256QAM are disclosed. in this aspect, ...

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Abstract

Systems and methods relating to the use of a Transport Block Size (TBS) table that supports 256 Quadrature Amplitude Modulation (QAM) in a cellular communications network are disclosed. In some embodiments, a wireless device determines a TBS for a downlink transmission from a radio access node to the wireless device using a TBS table that supports both a first set of modulation schemes and 256QAM. The TBS table comprises a first set of rows from a preexisting TBS table that supports the first set of modulation schemes but not 256QAM and a second set of rows added to the preexisting TBS table to provide the TBS table, where the second set of rows substantially reuse TBS values from the first set of rows. The wireless device receives the downlink transmission from the radio access node according to the Downlink Control Information (DCI) and the TBS determined for the downlink transmission.

Description

[0001] Related application [0002] This application claims the rights of provisional patent application serial number No. 61 / 933343 filed on January 30, 2014 and U.S. patent application serial number No. 14 / 597743 filed on January 15, 2015, the disclosures of which are fully incorporated by reference in the text. Technical field [0003] The present disclosure relates to cellular communication networks, and in particular, to the use of effective transmission block size (TBS) table design for 256 quadrature amplitude modulation (QAM) in cellular communication networks. Background technique [0004] The Long Term Evolution (LTE) wireless communication technology uses Orthogonal Frequency Division Multiplexing (OFDM) in the downlink, and uses Discrete Fourier Transform (DFT) to extend OFDM in the uplink. The basic LTE downlink physical resources can thus be seen as figure 1 The time-frequency grid illustrated in, where each resource element corresponds to one OFDM subcarrier during o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/00H04L27/34H04W72/04
CPCH04L1/0001H04L27/34H04L5/0005H04W72/046H04W72/23
Inventor 郑荣富D.拉森杨宇M.王
Owner TELEFON AB LM ERICSSON (PUBL)
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