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    • 1. 发明申请
    • METHOD AND APPARATUS TO ENABLE A UE TO RETURN TO A WIRELESS NETWORK AFTER FAILURE TO OBTAIN SERVICE
    • 使用UE无法获取服务后返回无线网络的方法和设备
    • WO2011119862A1
    • 2011-09-29
    • PCT/US2011/029839
    • 2011-03-24
    • QUALCOMM IncorporatedKLINGENBRUNN, ThomasRAMACHANDRAN, ShyamalGRIOT, Miguel
    • KLINGENBRUNN, ThomasRAMACHANDRAN, ShyamalGRIOT, Miguel
    • H04W48/18H04W8/18H04W88/06
    • H04W48/18H04W8/18H04W88/06
    • Techniques for enabling a user equipment (UE) to return to a wireless network after failure to obtain a particular service (e.g., voice service) are described. The UE may determine that the wireless network does not support the particular service at a first location (e.g., the current UE location). In response, the UE may disable the wireless network and may refrain from attempting to obtain the particular service (or possibly any service) from the wireless network. The UE may thereafter re-enable the wireless network based on a trigger, which may result from a timer, an event, or broadcast information from another wireless network. After re-enabling the wireless network, the UE may perform cell search and system selection and may detect and select the wireless network. The UE may determine that the wireless network supports the particular service at a second location and may obtain the particular service from the wireless network.
    • 描述了使用户设备(UE)在故障之后返回到无线网络以获得特定服务(例如语音服务)的技术。 UE可以确定无线网络不支持在第一位置(例如,当前UE位置)处的特定服务。 作为响应,UE可以禁用无线网络并且可以避免尝试从无线网络获得特定服务(或可能的任何服务)。 然后,UE可以基于可能由来自另一无线网络的定时器,事件或广播信息导致的触发来重新启用无线网络。 在重新启用无线网络之后,UE可以执行小区搜索和系统选择,并且可以检测和选择无线网络。 UE可以确定无线网络在第二位置支持特定服务,并且可以从无线网络获得特定服务。
    • 4. 发明申请
    • SINGLE RADIO TUNE-AWAY FOR LTE VOICE WITHOUT CSFB
    • 用于LTE语音的单频无线电调谐无CSFB
    • WO2014117390A1
    • 2014-08-07
    • PCT/CN2013/071269
    • 2013-02-01
    • QUALCOMM INCORPORATEDZHU, XipengSHAHIDI, RezaRAMACHANDRAN, ShyamalGRIOT, Miguel
    • ZHU, XipengSHAHIDI, RezaRAMACHANDRAN, ShyamalGRIOT, Miguel
    • H04L12/64
    • H04L12/64H04W60/005
    • A method, an apparatus, and a computer program product for wireless communication are provided. In one aspect, an apparatus supports multiple radio access technologies (RATs), and has a single radio configured to provide a circuit-switched (CS) and packet switched (PS) connectivity. The apparatus sends a request for combined registration to a first network entity and detects whether circuit-switched fallback (CSFB) support is available to the apparatus in the first network. The request for combined registration may include a request for concurrent registration with a packet switched (PS) service of the first network and a CS service of a second network using a second RAT. The apparatus enables a single radio LTE (SR-LTE) operation, to maintain the availability of PS service in the first network, when the requested combined registration is not accepted by the first network entity. The SR-LTE operation and related techniques provided herein enable CS and PS service for voice- centric devices without regard to network support for CSFB operation.
    • 提供了一种用于无线通信的方法,装置和计算机程序产品。 在一个方面,一种装置支持多种无线电接入技术(RAT),并且具有配置成提供电路交换(CS)和分组交换(PS)连接性的单个无线电。 该装置向第一网络实体发送用于组合注册的请求,并且检测电路交换回退(CSFB)支持是否可用于第一网络中的装置。 组合注册的请求可以包括与第一网络的分组交换(PS)服务并行注册的请求以及使用第二RAT的第二网络的CS服务的请求。 当所请求的组合注册不被第一网络实体接受时,该装置使单个无线电LTE(SR-LTE)操作能够维持第一网络中的PS服务的可用性。 本文提供的SR-LTE操作和相关技术使得能够以语音为中心的设备实现CS和PS服务,而不考虑对CSFB操作的网络支持。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR INTER-RAT CELL RESELECTION
    • 方法和装置用于细胞间细胞检测
    • WO2012174440A1
    • 2012-12-20
    • PCT/US2012/042758
    • 2012-06-15
    • QUALCOMM INCORPORATEDRAMACHANDRAN, ShyamalKLINGENBRUNN, Thomas
    • RAMACHANDRAN, ShyamalKLINGENBRUNN, Thomas
    • H04W48/18
    • H04W48/18
    • Certain aspects of the disclosure relate generally to search of radio access technologies (RAT). For example, certain aspects of the present disclosure relate to a technique for facilitating higher priority radio access technology (RAT) search and cell reselection in areas having a plurality of overlapping RATs, such as GSM and LTE. According to certain aspects, a user equipment (UE) may generate a local set of cell reselection parameters based on one or more default cell reselection parameters and/or stored system information received during previous connects with found cells. According to certain aspects, the UE may perform cell reselection based on the local set of cell reselection parameters.
    • 本公开的某些方面一般涉及无线电接入技术(RAT)的搜索。 例如,本公开的某些方面涉及用于在具有多个重叠RAT(例如GSM和LTE)的区域中促进更高优先级的无线电接入技术(RAT)搜索和小区重选的技术。 根据某些方面,用户设备(UE)可以基于在先前与所找到的小区连接期间接收到的一个或多个默认小区重选参数和/或存储的系统信息来生成小区重选参数的本地集合。 根据某些方面,UE可以基于小区重选参数的本地集合来执行小区重选。
    • 10. 发明申请
    • METHODS AND APPARATUS FOR RADIO ACCESS TECHNOLOGY SEARCH
    • 无线电接入技术搜索的方法和装置
    • WO2012174428A1
    • 2012-12-20
    • PCT/US2012/042745
    • 2012-06-15
    • QUALCOMM INCORPORATEDRAMACHANDRAN, ShyamalKLINGENBRUNN, ThomasUMATT, Bhupesh Manoharlal
    • RAMACHANDRAN, ShyamalKLINGENBRUNN, ThomasUMATT, Bhupesh Manoharlal
    • H04W48/18
    • H04W48/18H04W36/14H04W48/16
    • Certain aspects of the disclosure relate generally to search of radio access technologies (RAT). For example, certain aspects of the present disclosure relate to a technique for performing higher priority radio access technology (RAT) searches in areas having a plurality of overlapping RATs, such as Global System for Mobile communications (GSM) and Long Term Evolution (LTE). According to certain aspects, a user equipment (UE) may be configured to periodically search for higher priority RATs in neighboring cells. According to certain aspects, upon finding a higher priority RAT cell, the UE may be further configured to evaluate, or "pre-evaluate", criteria for cell reselection from found cell to the currently camped cell, while still camped on the current cell. The UE may be configured to decide whether or not to switch to the found cell based on the evaluation.
    • 本公开的某些方面一般涉及无线电接入技术(RAT)的搜索。 例如,本公开的某些方面涉及用于在具有多个重叠RAT的区域中执行较高优先级的无线电接入技术(RAT)搜索的技术,例如全球移动通信系统(GSM)和长期演进(LTE) 。 根据某些方面,用户设备(UE)可以被配置为周期性地搜索相邻小区中的较高优先级的RAT。 根据某些方面,在找到较高优先级的RAT小区时,UE可以进一步配置为评估或“预先评估”小区重新选择从发现小区到当前驻留小区的标准,同时仍然驻留在当前小区上。 UE可以被配置为基于评估来决定是否切换到所找到的小区。