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Enhanced UE Performance in HetNet Poor Coverage Scenarios

A mobility and cell technology, applied in the field of base station devices, can solve problems such as mobility interference

Active Publication Date: 2017-03-22
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While HetNet deployments help with capacity issues, they introduce mobility and interference issues, just to name a few

Method used

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  • Enhanced UE Performance in HetNet Poor Coverage Scenarios
  • Enhanced UE Performance in HetNet Poor Coverage Scenarios
  • Enhanced UE Performance in HetNet Poor Coverage Scenarios

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Embodiment Construction

[0023] acronym

[0024] The following abbreviations are used in this patent application:

[0025] UE: user equipment

[0026] BS: base station

[0027] ENB: eNodeB (base station)

[0028] GSM: Global System for Mobile Communications

[0029] UMTS: Universal Mobile Telecommunications System

[0030] LTE: Long Term Evolution

[0031] CS: circuit switched

[0032] PS: packet switching

[0033] CSFB: Circuit Switched Fallback

[0034] MME: Mobility Management Entity

[0035] MSC: Mobile Switching Center

[0036] RNC: radio network controller

[0037] OAM: Operation, Control, and Management

[0038] RRC: Radio Resource Management

[0039] MT: mobile terminated

[0040] MTRF: Mobile Terminated Roaming Forwarding

[0041] the term

[0042] The following glossary is used in this application:

[0043] storage medium - any type of storage device or storage device. The term "storage medium" is intended to include installation media, for example, CD-ROM, floppy disk or ta...

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Abstract

This disclosure relates to techniques for enabling a user equipment (UE) to determine which cell to attach to in a heterogeneous network (HetNet). The UE may determine, based on the quality of the downlink (DL) channel and / or on the type of traffic between the UE and a current base station, whether to attach to a small cell base station or an overlay macro base station in the cellular network. Particularly, the UE may determine whether to use a received mobility offset during cell reselection in response to a measured quality of the DL channel.

Description

technical field [0001] The present invention relates generally to wireless devices, including apparatus, systems and methods for determining a base station to which user equipment will connect. Background technique [0002] Wireless communication systems are growing rapidly in use. Additionally, many different wireless communication technologies and standards exist. Some examples of wireless communication standards include GSM, UMTS (associated with e.g. WCMDA or TD-SCDMA air interface), LTE, LTE-Advanced (LTE-A), HSPA, 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD) , IEEE 802.11 (WLAN or Wi-Fi), IEEE 802.16 (WiMAX), Bluetooth and others. [0003] Cellular communication technology may be capable of providing a variety of services and may be used by a variety of applications. [0004] Wireless communication systems typically employ multiple base stations, each of which provides a coverage area. A typical base station is capable of transmitting multiple data streams for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W36/00H04W36/08
CPCH04W24/10H04W36/0055H04W36/0094H04W36/08H04W36/00837H04W36/302H04W48/20H04W88/06H04W52/20H04W52/365H04B17/309H04W48/12H04W36/04H04W84/045H04L1/203
Inventor S·巴拉克雷什南P·沙玛D·巴塔查尔吉S·瓦拉斯
Owner APPLE INC
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