Uplink pilot multiplexing in single user MIMO and SDMA for single carrier frequency division multiple access systems
AssigneeQUALCOMM Incorporated
InventorsDurga Prasad Malladi, Juan Montojo, Xiaoxia Zhang
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AssigneeQUALCOMM Incorporated
InventorsDurga Prasad Malladi, Juan Montojo, Xiaoxia Zhang
Estimating the term…
Systems and methodologies are described that facilitate adaptive uplink pilot multiplexing schemes. In various embodiments, frequency position and pilot channel bandwidth can be adaptively varied in a block over time based on the uplink channel data, such as the number of streams to be multiplexed. Thus, the provided adaptive uplink pilot multiplexing schemes provide flexible uplink pilot allocation schemes while maintaining single carrier waveform for improved transmit power efficiency and orthogonality of pilots within blocks for improve channel estimation and suppression of interference.
A method for pilot multiplexing in a wireless communication system, the method comprising:
A method for pilot multiplexing in a wireless communication system, the method comprising:
A communications apparatus, comprising:
A communications apparatus, comprising:
A communications apparatus, comprising:
A communications apparatus, comprising:
A non-transitory machine-readable medium having computer-executable instructions stored thereon for:
A non-transitory machine-readable medium having computer-executable instructions stored thereon for:
In a wireless communication system, an apparatus comprising:
In a wireless communication system;
Dependencies are inferred from the claim text.
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Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
Three-dimensional division: time-frequency-space
Digital communication
About 2 years 5 months of term left · ends 2 Apr 2029 (estimated)
I. Field
The following description relates generally to wireless communications, and more particularly to uplink pilot multiplexing.
II. Background
FIG. 1 illustrates a wireless communication system in accordance with various aspects set forth herein.
FIG. 2 illustrates a wireless communication system in accordance with further aspects of the present invention.
FIG. 3A illustrates an exemplary non-limiting high-level block diagram of a system that facilitates pilot channel multiplexing according to various aspects of the present invention.
Various embodiments are now 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 such embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
In addition, various aspects of the present invention are described below. It should be apparent that the teaching herein may be embodied in a wide variety of forms and that any specific structure and/or function disclosed herein is merely representative. Based on the teachings herein one skilled in the art should appreciate that an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, an apparatus may be implemented and/or a method practiced using other structure and/or functionality in addition to or other than one or more of the aspects set forth herein. As an example, many of the methods, devices, systems and apparatuses described herein are described in the context of multiplexing uplink pilot signals in a SC-FDMA communications system. One skilled in the art should appreciate that similar techniques could apply to other communication environments.
As used in this application, the terms “component,” “module,” “system,” and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, software, software in execution, firmware, middle ware, microcode, and/or any combination thereof. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, not limitation, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network such as the Internet with other systems by way of the signal). Additionally, components of systems described herein may be rearranged and/or complemented by additional components in order to facilitate achieving the various aspects, goals, advantages, etc., described with regard thereto, and are not limited to the precise configurations set forth in a given figure, as will be appreciated by one skilled in the art.