Pucch structure for mixed numerology

A technology of quantity, user equipment, applied in the direction of digital transmission system, multiple use of transmission path, separation device of transmission path, etc.

Active Publication Date: 2019-11-08
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on these requirements, new issues and cha

Method used

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  • Pucch structure for mixed numerology
  • Pucch structure for mixed numerology
  • Pucch structure for mixed numerology

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Embodiment Construction

[0044] An NR subframe or slot (as an example of a transmission timing structure) consists of several OFDM symbols, depending on the current protocol, 7 or 14 symbols (OFDM subcarrier spacing ≤ 60kHz) and 14 symbols (OFDM subcarrier spacing > 60kHz) . Figure 1 shows a slot or subframe with 14 OFDM symbols. In Figure 1, T s and T symb denote the slot duration and OFDM symbol duration, respectively.

[0045] In addition to slots, NR also defines mini-slots. Mini-slots are shorter than slots (from 1 or 2 symbols to the number of symbols in a slot minus 1, depending on current protocols), and can start on any symbol within a slot. Mini-slots can be used if the transmission duration of a slot is too long or if the next slot start occurs too late (slot alignment). Applications of mini-slots include delaying critical transmissions (where both mini-slot length and frequent mini-slot opportunities are important) and using unlicensed spectrum, where transmissions should begin immedi...

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Abstract

The invention discloses user equipment (10) for a radio access network. The user equipment is adapted for communicating utilizing a first transmission timing structure comprising a first number of symbols, and for communicating utilizing a second transmission timing structure comprising a second number of symbols. The user equipment (10) further is adapted for receiving first signaling based on the first transmission timing structure and for transmitting acknowledgement signaling pertaining to the first signaling based on the second transmission timing structure, wherein the user equipment (10) is adapted to start transmitting the acknowledgement signaling at a starting symbol of the second transmission timing structure, the starting symbol being determined based on a configuration of theuser equipment (10). The disclosure also pertains to related methods and devices.

Description

technical field [0001] The present disclosure relates to wireless communication technologies, in particular, to 5G technologies such as LTE evolution or New Radio (NR). Background technique [0002] The 5th generation (5G) wireless (radio) technology currently being developed is designed to support a wide range of use cases, including those with low latency requirements. On the other hand, 5G technologies are being developed to allow flexibility in the transmission timing structure and to utilize a wide frequency range. If carriers of significantly different frequencies are being used, the transmission timing may be significantly different due to different physical properties such as bandwidth / spacing and symbol time length. [0003] Based on these requirements, new problems and challenges arise eg in the context of ARQ / HARQ processes. Contents of the invention [0004] It is an object of the present disclosure to provide methods that allow proper adaptation of delay req...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04L27/26
CPCH04L5/0007H04L5/0092H04L5/0055H04L27/26025H04L1/1812H04L27/2602H04L5/0053H04W72/0446H04W84/042H04W88/02H04W72/20
Inventor R·巴尔德梅尔E·达尔曼S·帕克瓦尔C·法罗纽斯
Owner TELEFON AB LM ERICSSON (PUBL)
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