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Numerology dependent signal transmission

A technology of signals and signal types, applied in digital transmission systems, transmission systems, pilot signal distribution, etc., to solve problems such as harmful effects of reception and transmission, inter-symbol interference, lack of signal reception, etc.

Active Publication Date: 2018-12-21
QUALCOMM INC
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although UEs and base stations in a multiple-access communication system may support different spectrum bands, using the same or similar tone interval, symbol number, and symbol duration for communications in different spectrum bands may result in inter-symbol interference, lack of signal reception ( e.g. due to the Doppler effect), or may have other detrimental effects on receiving and transmitting

Method used

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  • Numerology dependent signal transmission
  • Numerology dependent signal transmission
  • Numerology dependent signal transmission

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Embodiment Construction

[0076] Some wireless communication systems (eg, Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems or millimeter wave (mmW) systems) may employ fixed tone spacing for all spectrum bands supported by the system. For example, in LTE / LTE-A systems, the tone spacing can be the reciprocal of the symbol duration, and the tone spacing can be chosen in order to avoid or alleviate ambiguity caused by Doppler shift and maintain orthogonality between tones sex.

[0077] However, as the center frequencies of the different spectral bands increase, having a higher pitch spacing can help mitigate the phase noise experienced when communicating at higher frequencies. Accordingly, in some examples, a wireless communication system can support spectral bands with different pitch spacing. The pitch spacing may be predetermined or determined based on individual spectral bands. Additionally or alternatively, the tone interval may be specified by the type of signal to be transmitted. For examp...

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Abstract

Methods, systems, and devices for wireless communication are described. The methods, systems, and devices provide for identifying tone spacing for transmission or reception of signals. The identifiedtone spacing may vary depending on the transmission or reception spectrum band or signal type. Using the identified tone spacing, a number of repetitions or a number of symbols for transmission or receiver algorithm of a signal may be determined.

Description

[0001] cross reference [0002] This patent application claims priority to U.S. Patent Application No. 15 / 369,602, filed December 5, 2016, by Islam et al., entitled "Numerology Dependent Signal Transmission"; and by Islam et al., 2016 US Provisional Patent Application No. 62 / 333,397, entitled "Numerology Dependent Signal Transmission," filed May 9, 1999; each of these applications is assigned to the assignee of the present application. technical field [0003] The following relates generally to wireless communications and, more particularly, to signal transmissions that rely on numerology. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be able to support communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples of such multiple-access systems include...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04L5/00H04L27/26
CPCH04L5/0007H04L5/001H04L5/0048H04L27/2602H04W72/044H04L27/26025H04W72/23H04L1/08H04W72/1263
Inventor M·N·伊斯兰骆涛S·苏布拉玛尼安厉隽怿J·塞尚
Owner QUALCOMM INC
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