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Apparatus, method and computer program product providing common pilot channel for soft frequency reuse

A technology of frequency and frequency subbands, applied in the field of wireless cellular communication systems

Active Publication Date: 2008-11-12
NOKIA TECHNOLOGLES OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

thus, it would not be efficient to deploy such wideband systems utilizing frequency reuse

Method used

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  • Apparatus, method and computer program product providing common pilot channel for soft frequency reuse
  • Apparatus, method and computer program product providing common pilot channel for soft frequency reuse
  • Apparatus, method and computer program product providing common pilot channel for soft frequency reuse

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Embodiment Construction

[0038] Exemplary embodiments of the present invention generally pertain to multi-cellular, multi-carrier communication systems, such as the one being standardized in 3GPP known as Evolved UTRAN (E-UTRAN). However, the exemplary embodiments of the present invention should not be construed as limited to use with only one particular type of wireless communication system or with only one particular type of wireless communication system access technology.

[0039] The problems addressed and solved according to the exemplary embodiments of the present invention relate to the joint design of frequency domain soft reuse and common pilot structure. With joint design, channel estimation performance can be optimized for soft reuse.

[0040] Reference is first made to FIG. 1 to illustrate a simplified block diagram of various electronic devices suitable for use in practicing the exemplary embodiments of the present invention. In FIG. 1 , a wireless network 1 includes a UE 10 and a Node B...

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Abstract

A method for operating a wireless communication system in a cell includes allocating a first plurality of pilot resources to a first frequency sub-band comprising a plurality of high power sub-carriers, allocating a second plurality of pilot resources to a second frequency sub-band comprising a plurality of low power sub-carriers, signaling a power offset between the plurality of pilot resources in the plurality of high power sub-carriers and the plurality of pilot resources in the plurality of low power sub-carriers, and transmitting the first and the second plurality of pilot resources overthe first and the second frequency sub-bands.

Description

technical field [0001] The exemplary and non-limiting embodiments of the present invention relate generally to wireless cellular communication systems and devices, and more particularly to those wireless cellular communication systems employing pilot channels transmitted to receivers. Background technique [0002] The following abbreviations are defined in the text. [0003] 3GPP Third Generation Partnership Project [0004] UTRAN Universal Terrestrial Radio Access Network [0005] E-UTRAN Evolved Universal Terrestrial Radio Access Network [0006] CDM code division multiplexing [0007] DL Downlink (Node B to UE) [0008] UL uplink (UE to Node B) [0009] DSP digital signal processor [0010] FDM frequency division multiplexing [0011] Node B base station [0012] OFDM Orthogonal Frequency Division Multiplexing [0013] SR sub-band soft reuse sub-band [0014] TDM time division multiplexing [0015] UE User Equipment [0016] WCDMA wideband code division multip...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04L27/26
CPCH04W16/10H04L27/261H04W52/16H04L25/0226H04L25/0204H04L5/0064H04L5/005H04W52/325H04L5/0023H04W88/08
Inventor O·蒂尔科宁M·P·林内K·赫格尔
Owner NOKIA TECHNOLOGLES OY
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