公开(公告)号：US11477708B2

公开(公告)日：2022-10-18

申请号：US16445926

申请日：2019-06-19

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Masato Kitazoe ,  Tom Chin ,  Gavin Bernard Horn ,  Haris Zisimopoulos ,  Shyamal Ramachandran ,  Min Wang ,  Aziz Gholmieh ,  Ajith Payyappilly ,  Luis Fernando Brisson Lopes

IPC: H04W36/00 ,  H04L5/14 ,  H04M7/00 ,  H04W8/24 ,  H04W72/04 ,  H04W8/22

Abstract: Methods, systems, and devices for wireless communications are described that provide for a user equipment (UE) to report packet switched voice call capabilities to a base station. The UE may explicitly report voice call capabilities via one or more system-level parameters that are transmitted to the base station. The base station may operate in a first radio access network (RAN), such as a 5G or new radio (NR) RAN. In cases where the UE indicates a capability for packet switched voice calls via the first RAN, one or more voice calls may be established with the UE via the first RAN. In cases where the UE indicates that it is not capable of packet switched voice calls via the first RAN, the UE may fall back to a different RAN (e.g., a 4G or LTE RAN, a 3G RAN, or a 2G RAN) for voice calls.

公开(公告)号：US11122480B2

公开(公告)日：2021-09-14

申请号：US15960889

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Kirankumar Bhoja Anchan ,  Srinivasan Balasubramanian ,  Shyamal Ramachandran ,  Chinmay Dhodapkar ,  Devrath Chatterjee

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/24 ,  H04W48/16 ,  H04W48/20

Abstract: A method and apparatus for selecting an access point (AP) for providing a service at a user equipment (UE). The example method may identify, by a user equipment (UE), a first AP available for communication. The example method may determine, by the UE, whether the first AP is suitable based, at least in part, on an indication for the first AP in an AP history table stored in a memory of the UE, wherein the indication is based on UE-determined metrics determined during one or more prior communications between the UE and the first AP. The example method may also include establishing communication between the UE and the first AP, in response to determining that the first AP is suitable.

公开(公告)号：US10728870B2

公开(公告)日：2020-07-28

申请号：US14047673

申请日：2013-10-07

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Bhatnagar ,  Shyamal Ramachandran ,  Vitaly Drapkin ,  Vamsi Krishna Dokku ,  Hariharan Sukumar ,  Zhong Ren ,  Vidula Rajeev Kurundkar

IPC: H04W60/00 ,  H04W48/02 ,  H04W88/06

Abstract: Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.

公开(公告)号：US09743330B2

公开(公告)日：2017-08-22

申请号：US14832648

申请日：2015-08-21

Applicant: QUALCOMM Incorporated

Inventor： Mutaz Zuhier Afif Shukair ,  Mouaffac Ambriss ,  Saad Zaidi ,  Salil Sawhney ,  Ritesh Suresh Gujarathi ,  Mukesh Kumar Mittal ,  Shyamal Ramachandran

IPC: H04W4/00 ,  H04W36/30 ,  H04W36/00 ,  H04W36/16

CPC classification number: H04W36/30 ,  H04W36/00 ,  H04W36/0022 ,  H04W36/165

Abstract: Methods and apparatuses for wireless communications are disclosed. For example, one method includes detecting a procedure and determining the procedure is a qualifying procedure. The method further includes detecting one or more handover events indicative of handover procedures, where the handover procedures interfere with the execution of the qualifying procedure. The method also includes comparing a radio frequency condition of the communication between a user equipment and a source access point with a threshold value based on the radio frequency condition and delaying handover procedures for a predefined time based on the comparison, wherein the delaying of the handover procedures occurs when the detected procedure is the qualifying procedure and when the radio frequency condition satisfies a threshold that is based on the threshold value.

公开(公告)号：US09615401B2

公开(公告)日：2017-04-04

申请号：US14099385

申请日：2013-12-06

Applicant: QUALCOMM Incorporated

Inventor： Nieyan Geng ,  Gurvinder Singh Chhabra ,  Thomas Klingenbrunn ,  Shyamal Ramachandran ,  Francesco Grilli ,  Uttam Pattanayak

IPC: H04W88/06 ,  H04W8/22 ,  G06F9/44 ,  H04L29/08 ,  H04M1/725 ,  H04W48/18

CPC classification number: H04W88/06 ,  G06F9/4401 ,  H04L69/321 ,  H04M1/72525 ,  H04W8/22 ,  H04W48/18

Abstract: Methods and apparatus are provided for device configuration (e.g., feature segment loading and system selection). Certain aspects of the present disclosure generally relate to operating a user equipment (UE) in a first radio access network (RAN) with a first set of modem features that supports the first RAN, detecting a second RAN not supported by the first set of modem features, and rebooting the modem software to load a second set of modem features that supports the detected RAN. For certain aspects, the first RAN may be a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network and the second RAN may be a Wideband-Code Division Multiple Access (W-CDMA) network or long term evolution network. This allows features to be loaded into memory (e.g., only) when they are required to support a detected RAN, rather than loading an entire image, thereby conserving DRAM and increasing efficiency.

公开(公告)号：US09451641B2

公开(公告)日：2016-09-20

申请号：US13786849

申请日：2013-03-06

Applicant: QUALCOMM Incorporated

Inventor： Shyamal Ramachandran ,  Thomas Klingenbrunn ,  Zhong Ren ,  Vitaly Drapkin

IPC: H04W76/02 ,  H04W76/06

CPC classification number: H04W76/02 ,  H04W76/10 ,  H04W76/16 ,  H04W76/18 ,  H04W76/19 ,  H04W76/32

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for improving data service availability. Certain aspects provide methods and apparatus for wireless communications by a UE including determining, while the UE is in a coverage area of a first network, that a connection to a second network, comprising a packet data network (PDN), is disconnected locally, and taking at least one action to avoid a rejection of a request to connect to the second network.

Abstract translation: 本公开的某些方面涉及用于改善数据服务可用性的方法和装置。 某些方面提供了一种用于UE的无线通信的方法和装置，包括当UE位于第一网络的覆盖区域内时确定包括分组数据网络（PDN）在内的与第二网络的连接在本地断开，以及 采取至少一个动作来避免拒绝连接到第二网络的请求。

公开(公告)号：US09392514B2

公开(公告)日：2016-07-12

申请号：US14812421

申请日：2015-07-29

Applicant: QUALCOMM Incorporated

Inventor： Shyamal Ramachandran ,  Thomas Klingenbrunn ,  Aziz Gholmieh ,  Amit Mahajan

IPC: H04W36/00 ,  H04W72/00 ,  H04W4/00 ,  H04W36/06 ,  H04W36/24

CPC classification number: H04W36/06 ,  H04W36/245

Abstract: Methods, apparatus, and computer program products for managing mobility in a multi-radio device are provided. One example method generally includes detecting that a first channel is not usable for communicating via a first radio access technology (RAT); receiving a message to redirect from a second channel to the first channel; determining the first channel is in a set of one or more blocked channels not usable for the first RAT; and in response to the determination, taking one or more actions. Another example method generally includes detecting that a first channel is not usable for communicating via a first RAT and providing an indication to a network that a user equipment (UE) no longer supports the first channel.

公开(公告)号：US09313711B2

公开(公告)日：2016-04-12

申请号：US14015264

申请日：2013-08-30

Applicant: QUALCOMM Incorporated

Inventor： Francis M. Ngai ,  Shyamal Ramachandran ,  Amit Mahajan

IPC: H04W36/24 ,  H04W48/20 ,  H04W52/18 ,  H04W48/16 ,  H04L1/00 ,  H04W88/06

CPC classification number: H04W36/24 ,  H04L1/0021 ,  H04W48/16 ,  H04W48/20 ,  H04W52/18 ,  H04W88/06

Abstract: A system, a method and an apparatus are described. The apparatus comprise a modem that determines frequencies at which a transceiver of a wireless device is susceptible to interference generated by a different transceiver of the wireless device, and that modifies a search for a radio access network based on the one or more frequencies. The first transceiver may be susceptible to the interference by means of transmission of the interference through one or more circuits within the wireless device. A threshold power level may be modified based on an estimate of the power of the interference. The threshold power level may be used to determine presence of a pilot signal. The interference may be modeled based on a list of frequencies associated with one or more subscriptions of the wireless device. An order of searching for pilot signals may be modified.

Abstract translation: 描述了系统，方法和装置。 该装置包括调制解调器，其确定无线设备的收发器容易受到由无线设备的不同收发器产生的干扰的频率，并且基于一个或多个频率来修改对无线电接入网络的搜索。 通过无线设备内的一个或多个电路的干扰传输，第一收发器可能容易受到干扰。 可以基于干扰功率的估计来修改阈值功率电平。 阈值功率电平可用于确定导频信号的存在。 干扰可以基于与无线设备的一个或多个订阅相关联的频率列表来建模。 可以修改搜索导频信号的顺序。

公开(公告)号：US20140153547A1

公开(公告)日：2014-06-05

申请号：US14175819

申请日：2014-02-07

Applicant: QUALCOMM Incorporated

Inventor： Thomas Klingenbrunn ,  Uppinder Singh Babbar ,  Srinivasan Balasubramanian ,  Shyamal Ramachandran ,  Arvind Swaminathan

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04L47/2408 ,  H04W36/0044 ,  H04W36/14

Abstract: Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS.

Abstract translation: 本文描述了促进在无线电接入技术（RAT）切换期间有效传输服务质量（QoS）上下文的系统和方法。 特别地，本文描述了用于建立用于用户设备单元（UE）或相关联网络是否应该为混合模式应用建立QoS的规则的技术，当跨越RAT间切换来翻译QoS时，识别到承载映射的流量，映射QoS 各种RAT的参数，减轻多次切换时的QoS折旧，如果新的RAT中的QoS不可接受，执行一个或多个动作，在隧道模式期间维护QoS，以及处理UE在使用网络发起的QoS的RAT之间移动的场景 使用UE发起的QoS的RAT。

公开(公告)号：US20140105125A1

公开(公告)日：2014-04-17

申请号：US13776628

申请日：2013-02-25

Applicant: QUALCOMM INCORPORATED

Inventor： Lenaig Genevieve Chaponniere ,  Stephen William Edge ,  Xipeng Zhu ,  Shyamal Ramachandran

IPC: H04W76/06

CPC classification number: H04W76/32 ,  H04W76/15 ,  H04W76/34

Abstract: A UE determines a need to deactivate one or more bearer contexts. The UE then selects for deactivation one or more active bearer contexts based on a context selection criteria, to avoid exceeding a maximum number of allowable active bearer contexts for the UE. The context selection criteria may relate to one or more of: current usage of active bearer contexts, information from applications associated with active bearer contexts, priority level of applications associated with active bearer contexts, order of active bearer context creation, measure of data activity through active bearer contexts, quality of service associated with active bearer contexts, type of service, e.g. voice or data, for which bearer contexts were activated, bandwidth allocations of active bearer contexts, a criteria predefined by the UE, network or user, or a random selection. Once one or more active bearer contexts have been selected, the UE deactivates the selected active bearer contexts.

Abstract translation: UE确定需要去激活一个或多个承载上下文。 然后，UE基于上下文选择标准选择去激活一个或多个活动承载上下文，以避免超过用于UE的允许的主动承载上下文的最大数目。 上下文选择标准可以涉及以下中的一个或多个：活动承载上下文的当前使用，与活动承载上下文相关联的应用的信息，与活动承载上下文相关联的应用的优先级，活动承载上下文创建的顺序，数据活动的度量 活动承载上下文，与活动承载上下文相关联的服务质量，服务类型，例如， 语音或数据，其中承载上下文被激活，活动承载上下文的带宽分配，由UE，网络或用户预定义的标准，或随机选择。 一旦选择了一个或多个活动承载上下文，则UE去激活所选择的活动承载上下文。