公开(公告)号：US10904907B2

公开(公告)日：2021-01-26

申请号：US16805477

申请日：2020-02-28

Applicant: QUALCOMM INCORPORATED

Inventor： Rajat Prakash ,  Vinay Joseph ,  Xipeng Zhu ,  Gavin Bernard Horn ,  Ozcan Ozturk ,  Luis Fernando Brisson Lopes

IPC: H04W72/12 ,  H04L12/841

Abstract: Generally, the described techniques provide for a core network signaling to a base station a delay budget configuration that indicates a determined latency for communications between a core network, base station, and a user equipment (UE). In some cases, the core network may determine a first variable delay budget between the core network and a base station based on capability information associated with the wireless communications system. The core network may transmit the delay budget configuration to the base station, where the delay budget configuration may include the first delay budget. The base station may be able to determine a delay between the UE and the base station based on the delay budget configuration. Using the delay budget configuration, the base station may then schedule communications with the UE.

公开(公告)号：US20200383021A1

公开(公告)日：2020-12-03

申请号：US16833202

申请日：2020-03-27

Applicant: QUALCOMM Incorporated

Inventor： Tom Chin ,  Ajith Tom Payyappilly ,  Min Wang ,  Xipeng Zhu

IPC: H04W36/08 ,  H04W52/14 ,  H04L5/00 ,  H04W56/00 ,  H04W72/14 ,  H04W74/08 ,  H04W52/36 ,  H04L25/02 ,  H04W36/00

Abstract: This disclosure provides systems, methods, and apparatus for wireless communications that support fast user equipment (UE) handover between base stations. A UE may receive, from a source base station, a configuration for reference signal transmission at a set of uplink transmit power levels. The UE may transmit multiple uplink reference signal repetitions based on the configuration. The source base station may transmit a request message to a target base station to measure the multiple uplink reference signal repetitions. The target base station may select an uplink reference signal and measure a transmit power correction. The target base station may transmit an indication to the source base station of the selection and transmit power correction. The source base station may evaluate the indications and select the target base station. The source base station may forward to the indicated contents, and the UE may switch and synchronize with the target base station.

公开(公告)号：US20200351690A1

公开(公告)日：2020-11-05

申请号：US16802433

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Peter Gaal ,  Umesh Phuyal ,  Huilin Xu ,  Masato Kitazoe ,  Tom Chin

IPC: H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.

公开(公告)号：US20200314712A1

公开(公告)日：2020-10-01

申请号：US16831704

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Xiaoxia Zhang ,  Tom Chin

IPC: H04W36/04 ,  H04W36/00 ,  H04W76/27 ,  H04W74/08 ,  H04W4/06 ,  H04W48/20

Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) camping in a virtual cell. A UE may camp in a virtual cell and may be in an idle mode or an inactive mode in the virtual cell. The UE may transition out of the idle or inactive mode and switch from camping in the virtual cell to connecting to a physical cell encompassed by the virtual cell through reselection, redirection, and handover procedures. The virtual cell may include a central unit and multiple distributed units, which may be configured in various physical implementations. Additionally, the virtual cell may be limited to broadcast only or selective unicast signaling.

公开(公告)号：US20200153743A1

公开(公告)日：2020-05-14

申请号：US16678174

申请日：2019-11-08

Applicant: QUALCOMM Incorporated

Inventor： Huichun Liu ,  Xipeng Zhu ,  Gavin Bernard Horn

IPC: H04L12/851 ,  H04L12/725 ,  H04L29/08 ,  H04L12/26 ,  H04W76/12

Abstract: Systems and techniques are disclosed to reduce workload on base stations in a mobile network when content delivery networks cache content inside the network. A user equipment sets a flag only with those packets on the uplink which include requests that should be routed to the cache server inside the mobile network. The base stations perform deep packet inspection of those packets where flags have been set and forward other packets on to the rest of the relevant backhaul of the mobile network. After deep packet inspection, the base stations either route the packet to the cache server via an established connection or propagate the flag in an extension header to another network node for routing to the cache server. The resulting content is returned to the UE with the source address of the originally intended destination instead of the cache server, rendering the process transparent to the end user.

公开(公告)号：US10530595B2

公开(公告)日：2020-01-07

申请号：US15100932

申请日：2015-01-02

Applicant: Xipeng Zhu ,  Jun Wang ,  Xiaoxia Zhang ,  Gang Bao ,  QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Jun Wang ,  Xiaoxia Zhang ,  Gang Bao

IPC: H04L12/18 ,  H04W4/06 ,  H04W72/00 ,  H04W36/26 ,  H04W4/021 ,  H04W76/40

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE determines whether the UE is located within a sub-region of an MBSFN area based on one or more parameters. The UE receives based on the determination a service over broadcast in the sub-region of the MBSFN area or over unicast outside the sub-region. In an aspect, the MBSFN area may be smaller than a unicast area. In an aspect, adaptive retransmission with a group NACK approach may be used to improve an SNR and reliability.

公开(公告)号：US20180316740A1

公开(公告)日：2018-11-01

申请号：US15765977

申请日：2016-10-14

Applicant: Thomas STOCKHAMMER ,  Xipeng ZHU ,  Gordon Kent WALKER ,  QUALCOMM Incorporated

Inventor： Thomas Stockhammer ,  Xipeng Zhu ,  Gordon Kent Walker

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/44 ,  H04N21/845

CPC classification number: H04L29/06 ,  H04L29/08 ,  H04N21/26241 ,  H04N21/26258 ,  H04N21/4331 ,  H04N21/64322 ,  H04N21/8456

Abstract: A client device includes a memory comprising a buffer for buffering data having real-time constraints and a hardware-based processor comprising digital logic circuitry. The processor is configured to execute a real-time application configured to determine times during which the data will be available for download, determine a time at which the data is needed to prevent a buffer underrun for the buffer, and when the data is available, send a request for the data and deadline information representative of the time at which the data is needed to avoid the buffer underrun. In this manner, a sending device can prioritize delivery of the requested data to prevent the buffer underrun for the client device.

公开(公告)号：US09516597B2

公开(公告)日：2016-12-06

申请号：US14443039

申请日：2013-09-10

Applicant: QUALCOMM Incorporated

Inventor： Seyed Mohammadsadegh Tabatabaei Yazdi ,  Xipeng Zhu ,  Francesco Pica ,  Sharad Deepak Sambhwani ,  Rohit Kapoor

IPC: H04W52/02 ,  H04W76/04

CPC classification number: H04W52/0235 ,  H04W52/0222 ,  H04W76/27 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21

Abstract: Methods and apparatus for power management comprise detecting, at a user equipment (UE), a state transition trigger, wherein the state transition trigger indicates a current data transmission termination or an anticipated data transmission termination. Further, the methods and apparatus comprise sending a state transition indication to the network entity in response to detecting the state transition trigger. Moreover, the methods and apparatus comprise adjusting a state of the UE based at least in part on sending the state transition indication to the network entity.

Abstract translation: 用于电力管理的方法和装置包括在用户设备（UE）处检测状态转换触发，其中状态转移触发指示当前数据传输终止或预期的数据传输终止。 此外，所述方法和装置包括响应于检测到状态转换触发而向网络实体发送状态转换指示。 此外，所述方法和装置包括至少部分地基于向网络实体发送状态转换指示来调整UE的状态。

公开(公告)号：US20150223028A1

公开(公告)日：2015-08-06

申请号：US14425304

申请日：2012-10-03

Applicant: QUALCOMM Incorporated

Inventor： Jun Wang ,  Carlos M. D. Pazos ,  Sivaramakrishna Veerepalli ,  Dilip Krishnaswamy ,  Xipeng Zhu ,  Miguel Griot ,  Farrokh Khatibi ,  Arungundram Chandrasekaran Mahendran

IPC: H04W4/06 ,  H04W4/00

CPC classification number: H04W4/06 ,  H04L12/189 ,  H04W4/08 ,  H04W4/70

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. An apparatus notifies a user equipment (UE) of an upcoming multicast/broadcast of data intended for receipt by a group of UEs assigned a machine type communication (MTC) class. The UE has one or more MTC classes assigned to it and is configured to awake for the upcoming multicast/broadcast of data if the data to be broadcast corresponds to an MTC class assigned to the UE. The apparatus also multicasts/broadcasts the data intended for receipt by a group of UEs through at least one multicast/broadcast mechanism.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 一种装置向用户设备（UE）通知即将到来的组播/广播数据，该数据旨在由分配有机器类型通信（MTC）类的一组UE接收。 UE具有分配给它的一个或多个MTC类，并且如果要广播的数据对应于分配给UE的MTC类别，则被配置为唤醒即将到来的数据的多播/广播。 该装置还通过至少一个多播/广播机制来组播/广播一组UE要接收的数据。

公开(公告)号：US20150131619A1

公开(公告)日：2015-05-14

申请号：US14502542

申请日：2014-09-30

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Yan Li ,  Jun Wang ,  Roozbeh Atarius ,  Arvind Vardarajan Santhanam

IPC: H04W36/00 ,  H04W36/30 ,  H04W8/08

CPC classification number: H04W36/0022 ,  H04W36/0027 ,  H04W36/30 ,  H04W88/06

Abstract: Various embodiments provide methods and apparatus for network-controlled DRVCC. In an embodiment method, a wireless user equipment may include requesting handover of a voice over Internet protocol (VoIP) call from a first network to a second network, activating a second radio, continuing the voice call on the circuit switched (CS) domain of the second network, and communicating data for applications other than the voice call via the first network. An embodiment method may include determining whether the first network supports voice-over-LTE (VoLTE) calls, and deactivating a radio in response to determining that the first network supports VoLTE calls. An embodiment method may include determining whether a quality of the VoIP call satisfies a quality threshold, deactivating the radio continued to the second network when the quality of the VoIP call satisfies the quality threshold, and activating the second radio when the VoIP call quality does not satisfy the quality threshold.

Abstract translation: 各种实施例提供了用于网络控制的DRVCC的方法和装置。 在一个实施方式中，无线用户设备可以包括请求通过因特网协议（VoIP）呼叫的语音从第一网络到第二网络的切换，激活第二无线电，继续在电路交换（CS）域上的语音呼叫 第二网络，以及经由第一网络为不同于语音呼叫的应用传送数据。 实施例方法可以包括确定第一网络是否支持LTE语音（VoLTE）呼叫，以及响应于确定第一网络支持VoLTE呼叫来停用无线电。 一种实施方式可以包括确定VoIP呼叫的质量是否满足质量阈值，当VoIP呼叫的质量满足质量阈值时停用继续到第二网络的无线电，以及当VoIP呼叫质量不满足时激活第二无线电 满足质量门槛。