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Method and apparatus for configuring transmission time interval in mobile communication system

  • US 10,404,441 B2
  • Filed: 11/11/2015
  • Issued: 09/03/2019
  • Est. Priority Date: 11/11/2014
  • Status: Active Grant
First Claim
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1. A method for configuring a transmission time interval (TTI) in a base station of a mobile communication system, comprising:

  • configuring at least one LL (low latency) TTI, with a length of at least one transmission symbol and shorter than a length of one subframe, in a subframe including a plurality of transmission symbols;

    transmitting LL (low latency) TTI related information using a control format indicator (CFI) of N bits larger than 2 bits of a physical control format indicator channel (PCFICH) transmitted at a defined transmission symbol position within the subframe;

    wherein the CFI includes;

    first CFI values of M bits among the N bits representing a number of transmission symbols within the LL TTI, andsecond CFI values of L bits among the N bits representing configuration information of a control region and a data region within the LL TTI.

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