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Frequency hopping design for IFDMA, LFDMA and OFDMA systems

A technology of equipment and user equipment, applied in transmission systems, digital transmission systems, diversity/multi-antenna systems, etc., can solve problems such as low efficiency of nonlinear power amplifiers, non-compliance with peak-to-average ratio, and limited coverage of OFDMA systems

Active Publication Date: 2015-05-13
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the case of OFDMA-based systems, the specific waveforms and powers required to transmit communication signals over them typically exhibit an undesirably high high-to-average ratio (PAR), which limits the performance of OFDMA systems due to the inefficiency of non-linear power amplifiers. cover
Single-carrier FDMA systems can alleviate the problems associated with undesirably high PAR, but are still subject to various limitations, which form a challenge in the art to alleviate the problems associated with mobile devices and / or sectors in such wireless network systems. Need for a system and / or method for inter-area interference

Method used

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  • Frequency hopping design for IFDMA, LFDMA and OFDMA systems
  • Frequency hopping design for IFDMA, LFDMA and OFDMA systems
  • Frequency hopping design for IFDMA, LFDMA and OFDMA systems

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Embodiment Construction

[0030] Embodiments will now be described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that the described embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate illustrating one or more embodiments.

[0031] The terms "component," "system," and similar terms as used in this application are intended to refer to a computer-related entity, either hardware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to being, a method running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a c...

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Abstract

An apparatus (602) is described that facilitates frequency hopping for single carrier FDMA communication. The apparatus comprises means for assigning an offset to a user device (606) and means for varying the offset according to a predetermined pattern.

Description

[0001] Related Application Cross Reference [0002] The present application is claimed under 35 U.S.C. §119(e) of U.S. Provisional Patent Application Serial No. 60 / 672,575, filed April 19, 2005, entitled "Frequency Hopping In Interleaved Frequency Division Multiple Access Communication Systems," and Benefit of Provisional Patent Application Serial No. 60 / 691,755, filed June 15, 2005, which is hereby incorporated by reference in its entirety. [0003] Reference to co-pending patent applications [0004] This patent application is related to the following co-pending U.S. Patent Application Serial No. 11 / 173,873, filed June 30, 2005, assigned to the present assignee and expressly incorporated by reference and into this article. technical field [0005] In general, the following description relates to wireless communications, and more specifically, to mitigating interference among user devices in nearby communication sectors by using frequency hopping in a single-carrier FDMA...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7143H04B7/04H04B7/06H04L1/00H04L5/00H04B1/713
CPCH04B1/7143H04L5/0044H04B1/715H04B1/692
Inventor 拉维·帕兰基
Owner QUALCOMM INC