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Methods and apparatus for cross-cell coordination and signaling

A technology for coordinating transmission and control channel signals, which is applied in multiplexing communication, pilot signal allocation, transmission path sub-channel allocation, etc., and can solve problems such as increased base station interference

Active Publication Date: 2012-07-18
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, with the introduction of semi-autonomous base stations for managing small cells (e.g. femto cells and pico cells) in systems such as LTE, interference to existing base stations may become an increasing problem

Method used

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  • Methods and apparatus for cross-cell coordination and signaling
  • Methods and apparatus for cross-cell coordination and signaling
  • Methods and apparatus for cross-cell coordination and signaling

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Embodiment Construction

[0043] Generally, the present disclosure relates to interference coordination, management and mitigation in wireless communication systems. In various embodiments, the techniques and apparatus described herein may be used in wireless communication networks, such as Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, Single Carrier FDMA (SC-FDMA) networks, LTE networks, and other communication networks. As described herein, the terms "network" and "system" are used interchangeably.

[0044] A CDMA network may implement a radio technology such as Universal Terrestrial Radio Access (UTRA), cdma2000, and so on. UTRA includes Wideband-CDMA (W-CDMA) and Low Chip Rate (LCR). Cdma2000 covers IS-2000, IS-95 and IS-856 standards. A TDMA network may implement a radio technology such as Global System for Mobile Communications (GSM).

[0045] An OFDMA network ...

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Abstract

Methods and apparatus for providing cross-cell signaling and / or coordination for interference mitigation in wireless communication networks are described. In one aspect, a UE associated with a serving eNB may receive control signaling from another non-serving eNB in a different cell. The control signaling may be consistent with a characteristic of the serving eNB and associated cell. In another aspect, multiple eNBs may coordinate transmission of DL resources to minimize collisions of control signaling resources.

Description

[0001] Cross References to Related Applications [0002] This application is claimed under 35 U.S.C.§119(e) to U.S. Provisional Patent Application No. filed on October 15, 2009, entitled "METHOD AND APPARATUS FOR CROSS-CELL COORDINATION AND CROSS-CELL SIGNALING AND / OR DATA TRANSMISSION". 61 / 252,125, the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present application relates generally to wireless communication systems. More particularly, but not exclusively, the present application relates to methods and apparatus for providing cross-cell signaling and / or coordination for interference mitigation in a wireless communication network. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, data, video, etc., and this deployment is likely to increase with the introduction of new data-oriented systems such as Long Term Evolution (LT...

Claims

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Application Information

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IPC IPC(8): H04W48/12
CPCH04W72/0426H04W72/0406H04W48/12H04W16/14H04W72/082H04W72/1289H04W84/045H04W72/27H04W72/20H04W72/541H04W72/23H04J11/005H04L5/0048H04W72/0446
Inventor 罗涛张晓霞K·宋K·刘T·余
Owner QUALCOMM INC
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