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Method and device for indicating uplink subframe on unlicensed spectrum

An unlicensed spectrum and subframe technology, applied in the communication field, can solve the problems of low and inflexible transmission efficiency, and achieve the effect of improving transmission efficiency and dynamic and flexible frame structure

Active Publication Date: 2019-03-22
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Based on this, in order to solve the technical problem of low transmission efficiency caused by the inflexible shortcoming of the TDD uplink and downlink configurations in the above-mentioned traditional technology with only 7 kinds of uplink and downlink configurations, a non-licensed Method for indicating uplink subframe on frequency spectrum

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  • Method and device for indicating uplink subframe on unlicensed spectrum
  • Method and device for indicating uplink subframe on unlicensed spectrum
  • Method and device for indicating uplink subframe on unlicensed spectrum

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Embodiment Construction

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042]The frame structure of TDD in traditional technology can be as follows figure 1 As shown, a TDD frame has a time length of 10 ms and is divided into 10 subframes (that is, each subframe has a time length of 1 ms), and the numbers are subframe 0 to subframe 9 respectively. A subframe can be divided into an uplink subframe U, a downlink subframe D, and a special subframe S. In a TDD frame, the sequence position of the subframe sequence is the timing position of...

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Abstract

The embodiment of the present invention discloses a method for indicating an uplink subframe on an unlicensed frequency spectrum, including: obtaining configuration information of an allocated uplink subframe and a timing position of the current subframe; The timing position of a number of subframes is set as the first uplink subframe after the current subframe; the indication signal is sent in the preset second number of subframes configured as the first uplink subframe The terminal receiving the indication signaling acquires the timing position of the uplink subframe according to the indication signaling. The method for indicating uplink subframes on the unlicensed spectrum above extends the TDD frame structure, making the TDD frame structure more flexible, adaptable to more transmission environments, and improving transmission efficiency.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method and device for indicating uplink subframes on unlicensed spectrum. Background technique [0002] With the rapid increase of communication traffic, the 3GPP authorized spectrum is increasingly insufficient to provide higher network capacity. In order to further improve the utilization of spectrum resources, unlicensed spectrum such as 2.4 GHz and 5 GHz frequency bands can be used in the prior art. These unlicensed spectrums are currently mainly used by WiFi, Bluetooth, radar, medical and other systems. In order to allow the LTE standard to be used in the unlicensed frequency band, 3GPP proposed the concept of LAA (LTE Assisted Access, LTE Assisted Access), using the unlicensed spectrum with the help of the LTE licensed spectrum. Unlicensed spectrum can work in two ways, one is Supplemental Downlink (SDL, Supplemental Downlink), that is, only downlink tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12H04L5/00
CPCH04L5/0005H04L5/0053H04L5/0092H04L5/0096H04W72/0446H04W72/23H04W72/20H04L5/00H04W16/14H04W72/12H04W72/04
Inventor 李明菊朱亚军张云飞
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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