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1. 发明授权

US10616123B2 Apparatus and method for adaptive de-jitter buffer 有权
公开(公告)号：US10616123B2
公开(公告)日：2020-04-07
申请号：US15644545
申请日：2017-07-07
申请人： QUALCOMM Incorporated
发明人： Min Wang , Shyamal Ramachandran
IPC分类号： H04L12/841 , H04L12/26 , H04L12/861 , H04L1/20 , H04L12/825
CPC分类号： H04L47/283 , H04L1/205 , H04L43/087 , H04L43/0829 , H04L43/16 , H04L49/9005 , H04L47/25
摘要： In a particular aspect, an apparatus includes a de-jitter buffer configured to store a plurality of audio packets received from a source device. The apparatus includes de-jitter buffer control circuitry configured to adjust at least one bound of a target delay range associated with the de-jitter buffer based at least in part on an estimated jitter associated with the plurality of audio packets, an estimated underflow rate associated with the plurality of audio packets, or both. The apparatus includes a processor configured to generate an audio signal based on the plurality of audio packets stored at the de-jitter buffer. The apparatus includes a receiver configured to receive the plurality of audio packets via a network from the source device. The apparatus further includes a speaker configured to output the audio signal.

2. 发明申请

US20140003364A1 METHOD AND APPARATUS FOR IMPROVING CALL SETUP PERFORMANCE 审中-公开
标题翻译：改善呼叫建立性能的方法和装置
公开(公告)号：US20140003364A1
公开(公告)日：2014-01-02
申请号：US13800998
申请日：2013-03-13
申请人： QUALCOMM INCORPORATED
发明人： Shyamal Ramachandran , Thomas Klingenbrunn , Salil Sawhney , Uttam Pattanayak , Abhishek Bhatnagar , Mutaz Zuhier Afif Shukair , Chunchung Chan , Bhupesh Manoharlal Umatt
IPC分类号： H04W76/02
CPC分类号： H04W76/16 , H04W36/0022
摘要： Certain aspects of the present disclosure relate to methods and apparatus for improving call setup performance. In certain aspects, a User Equipment (UE) or a network servicing the UE, may detect at least one of the occurrence or anticipated occurrence of circuit switched (CS) signaling by a user equipment (UE), wherein the CS signaling at least comprises signaling associated with a CS call setup procedure, suspend packet-switched (PS) signaling or processing of such PS signaling in order to avoid delaying circuit-switched (CS) signaling, at least until the PS signaling may not substantially effect CS domain activity. In an aspect, a progress of a CS call setup procedure may be monitored and the PS signaling or processing of such PS signaling may be resumed based on completion of a radio bearer setup step in the CS call setup procedure.
摘要翻译：本公开的某些方面涉及用于改善呼叫建立性能的方法和装置。在某些方面，用户设备（UE）或服务于UE的网络可以检测用户设备（UE）发生或预期发生电路交换（CS）信令中的至少一个，其中CS信令至少包括与CS呼叫建立过程相关联的信令，暂停分组交换（PS）信令或处理这种PS信令，以避免延迟电路交换（CS）信令，至少直到PS信令可能不显着地影响CS域活动。在一方面，可以监视CS呼叫建立过程的进展，并且可以基于CS呼叫建立过程中的无线电承载建立步骤的完成来恢复该PS信令的PS信令或处理。

3. 发明申请

US20130329638A1 AVOIDING PREMATURE E-UTRAN DISABLING 审中-公开
标题翻译：避免普及E-UTRAN禁用
公开(公告)号：US20130329638A1
公开(公告)日：2013-12-12
申请号：US13915558
申请日：2013-06-11
申请人： Qualcomm Incorporated
发明人： Zhong Ren , Shyamal Ramachandran , Vitaly Drapkin
IPC分类号： H04W60/00
CPC分类号： H04W60/005
摘要： Methods, systems, and apparatuses for mobility management in wireless communications systems that provide both voice connection services and data services are disclosed. In some aspects, enhanced connectivity with wireless networks after a failure of voice connection services is provided. A counter may be utilized in connection with a combined registration procedure in which a device requests registration for both data services and voice connection services in the wireless network. The counter may track failed attempts to register for voice connection services when the request is accepted for data services. The counter may be reset in response to a deregistration event, such as a user input or a network command, allowing a full number of attempts for later registration with the wireless network.
摘要翻译：公开了提供语音连接服务和数据服务的无线通信系统中的移动性管理的方法，系统和装置。在一些方面，提供了在语音连接服务故障之后与无线网络的增强的连接。可以结合组合注册过程使用计数器，其中设备请求在无线网络中为数据服务和语音连接服务两者的注册。当数据服务接受请求时，计数器可能会跟踪失败的注册语音连接服务尝试。可以响应于诸如用户输入或网络命令之类的注销事件来重置计数器，从而允许用于稍后向无线网络注册的全部尝试次数。

4. 发明授权

US11516709B2 Voice fallback in 5G NR 有权
公开(公告)号：US11516709B2
公开(公告)日：2022-11-29
申请号：US16947672
申请日：2020-08-12
申请人： QUALCOMM Incorporated
发明人： Xipeng Zhu , Masato Kitazoe , Gavin Bernard Horn , Shyamal Ramachandran , Arvind Vardarajan Santhanam , Tom Chin , Min Wang , Kuo-Chun Lee
IPC分类号： H04W4/00 , H04W36/00 , H04W36/12 , H04W36/08
摘要： This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

5. 发明授权

US11166202B2 Voice fallback in 5G NR 有权
公开(公告)号：US11166202B2
公开(公告)日：2021-11-02
申请号：US17248099
申请日：2021-01-08
申请人： QUALCOMM Incorporated
发明人： Xipeng Zhu , Masato Kitazoe , Gavin Bernard Horn , Shyamal Ramachandran , Arvind Vardarajan Santhanam , Tom Chin , Min Wang , Kuo-Chun Lee
IPC分类号： H04W4/00 , H04W36/00 , H04W36/12 , H04W36/08
摘要： This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

6. 发明授权

US10893444B2 Voice fallback in 5G NR 有权
公开(公告)号：US10893444B2
公开(公告)日：2021-01-12
申请号：US16737639
申请日：2020-01-08
申请人： QUALCOMM Incorporated
发明人： Xipeng Zhu , Masato Kitazoe , Gavin Bernard Horn , Shyamal Ramachandran , Arvind Vardarajan Santhanam , Tom Chin , Min Wang , Kuo-Chun Lee
IPC分类号： H04W4/00 , H04W36/00 , H04W36/12 , H04W36/08
摘要： This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

7. 发明授权

US09883477B2 Method and apparatus for reducing successive pre-registration attempts by access terminals 有权
公开(公告)号：US09883477B2
公开(公告)日：2018-01-30
申请号：US14746218
申请日：2015-06-22
申请人： QUALCOMM Incorporated
发明人： Shyamal Ramachandran , Thomas Klingenbrunn , Srinivasan Balasubramanian , Arvind Swaminathan
IPC分类号： H04W60/04 , H04W60/00 , H04W36/00
CPC分类号： H04W60/04 , H04W36/0005 , H04W60/00
摘要： An access terminal pre-registers with a second access network via a first access network to ensure a quick handover in the future. Frequent pre-registration attempts are avoided by implementing a hysteresis timer that restricts when a pre-registration process can be initiated. The hysteresis timer is started when pre-registration is initiated by the access terminal. No new pre-registration attempts are permitted if the hysteresis timer has not expired. An abort condition can cause the hysteresis timer to be aborted early, and a new pre-registration can be initiated. Access points in the first access network may be grouped into one or more pre-registration zones. If the access terminal moves from a first access point to a second access point, a new pre-registration is skipped if the first and second access points have the same pre-registration zone or the second access point is aware of the pre-registration zone for the first access point.

8. 发明授权

US09698927B2 Methods and apparatus for employing different capabilities for different duplexing modes 有权
公开(公告)号：US09698927B2
公开(公告)日：2017-07-04
申请号：US14968189
申请日：2015-12-14
申请人： QUALCOMM Incorporated
发明人： Thomas Klingenbrunn , Lorenzo Casaccia , Bhupesh Manoharlal Umatt , Pradeep Sagane Gowda , Daniel Amerga , Shyamal Ramachandran , Muralidharan Murugan , Swaminathan Sureshchandran , Dinesh Dharmaraju , Sudhir S. Halbhavi , Vitaly Drapkin , Raghu Narayan Challa
IPC分类号： H04J4/00 , H04L5/00 , H04W8/24 , H04W76/02 , H04W76/06
CPC分类号： H04J4/005 , H04L5/0053 , H04W8/245 , H04W76/10 , H04W76/30
摘要： Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.

9. 发明授权

US09609552B2 Apparatus and method for improving device handover during a call 有权
公开(公告)号：US09609552B2
公开(公告)日：2017-03-28
申请号：US13801602
申请日：2013-03-13
申请人： QUALCOMM Incorporated
发明人： Shyamal Ramachandran , Thomas Klingenbrunn , Navid Ehsan , Amir Aminzadeh Gohari , Min Wang , Srinivasan Balasubramanian
IPC分类号： H04W52/02 , H04W36/00 , H04W72/04 , H04W76/04
CPC分类号： H04W36/0011 , H04W36/0033 , H04W52/0216 , H04W72/042 , H04W76/28 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/22 , Y02D70/23 , Y02D70/24
摘要： Disclosed are methods and apparatus for improving the performance of a user equipment handover during a data call. In one aspect, a source base station determines to handover user equipment (UE) to a target base station. The source base station first determines whether the UE is in a data call prior to the handover. The source base station then modifies one or more of connected mode discontinuous reception (CDRX) and semi-persistent scheduling (SPS) parameters with the UE based on determining to handover the UE and determining that the UE is in the data call.

10. 发明授权

US09363844B2 Enhance performance of making an emergency call during radio link failure over radio access technology 有权
标题翻译：通过无线电接入技术提高无线电链路故障期间的紧急呼叫的性能
公开(公告)号：US09363844B2
公开(公告)日：2016-06-07
申请号：US14466496
申请日：2014-08-22
申请人： QUALCOMM Incorporated
发明人： Cherng-Shung Hsu , Zhong Ren , Shyamal Ramachandran , Anisha Elizabeth Jonas , Vitaly Drapkin , Kanuganti Rajeswar Reddy , Abhishek Bhatnagar
IPC分类号： H04W76/02 , H04W36/00 , H04W36/18 , H04W48/16 , H04W4/22 , H04W76/04 , H04W88/06
CPC分类号： H04W76/027 , H04W4/90 , H04W36/0061 , H04W36/18 , H04W48/16 , H04W76/18 , H04W76/19 , H04W76/25 , H04W88/06
摘要： Methods, systems, apparatuses and devices are described for managing a call during radio link failure. In one embodiment, radio link failure over a radio access technology may be detected during or after a call setup procedure. A public land mobile network and an equivalent public land mobile network may be selected. An initial search for cells of the radio access technology may be performed over the selected public land mobile network and the equivalent public land mobile network. The initial search may be performed once or twice based on a configurable parameter.
摘要翻译：描述了在无线电链路故障期间管理呼叫的方法，系统，装置和设备。在一个实施例中，可以在呼叫建立过程期间或之后检测无线电接入技术上的无线电链路故障。可以选择公共陆地移动网络和等效的公共陆地移动网络。可以在所选择的公共陆地移动网络和等效的公共陆地移动网络上执行对无线电接入技术的小区的初始搜索。可以基于可配置参数来执行初始搜索一次或两次。

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