公开(公告)号：US09913207B2

公开(公告)日：2018-03-06

申请号：US13793867

申请日：2013-03-11

Applicant: QUALCOMM Incorporated

Inventor： Sanjiv Nanda ,  Mehmet Yavuz ,  Chirag Sureshbhai Patel ,  Peerapol Tinnakornsrisuphap ,  Rajat Prakash

IPC: H04W48/16 ,  H04W68/12 ,  H04W48/20 ,  H04W84/04 ,  H04W16/32

CPC classification number: H04W48/16 ,  H04W16/32 ,  H04W48/20 ,  H04W68/12 ,  H04W84/045

Abstract: Wireless communication in a heterogeneous network may be facilitated by establishing connections with femto nodes based on page notifications from macro nodes to user equipment (UE). A UE in idle mode may monitor paging resources provided by a macro node, discover presence of a femto node based on signals received from the femto node, and establish a communicative connection with the femto node based on a page notification received from the macro node over the paging resources.

公开(公告)号：US20150319702A1

公开(公告)日：2015-11-05

申请号：US14268173

申请日：2014-05-02

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Vinay Chande ,  Liwen Yu ,  Tamer Adel Kadous

IPC: H04W52/14

CPC classification number: H04W52/10 ,  H04W52/146 ,  H04W52/243

Abstract: A method or apparatus for configuring OLPC parameters for uplink communications in a cellular wireless network includes determining an estimated number of neighbor cells deployed within radio range of a cell, and configuring OLPC parameters for uplink communications, based on the estimated number of neighbor cells. Determining the estimated number of neighbor cells may include measuring respective signal strengths of the neighbor cells using network listen functionality. At least two OLPC intermediate parameters Po and α may be selected from a data table, based on the estimated number of neighbor cells. A path loss statistic may be determined, based on UE measurement reports including path losses of UEs to itself and other cells. The OLPC parameters may be selected based on the path loss statistic and Po and α, and/or adapted based on at least one of UE power headroom reports or overload indicators received from the neighbor cells.

Abstract translation: 用于配置蜂窝无线网络中的上行链路通信的OLPC参数的方法或装置包括基于估计的相邻小区数来确定在小区的无线电范围内部署的相邻小区的估计数量，以及配置用于上行链路通信的OLPC参数。 确定相邻小区的估计数量可以包括使用网络侦听功能测量相邻小区的相应信号强度。 可以基于估计的相邻小区数从数据表中选择至少两个OLPC中间参数Po和α。 基于UE测量报告，包括UE自身和其他小区的路径损耗，可以确定路径损耗统计量。 可以基于路径损耗统计量和Po和α来选择OLPC参数，和/或基于从相邻小区接收的UE功率余量报告或过载指示符中的至少一个进行调整。

公开(公告)号：US20150045037A1

公开(公告)日：2015-02-12

申请号：US14491186

申请日：2014-09-19

Applicant: QUALCOMM Incorporated

Inventor： Peerapol Tinnakornsrisuphap ,  Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Peter Hans Rauber ,  Ravindra Manohar Patwardhan

IPC: H04W36/00 ,  H04W48/08

CPC classification number: H04W36/0061 ,  H04W36/04 ,  H04W48/08 ,  H04W84/045

Abstract: An access point is identified based on a plurality of pilot signatures. Here, in addition to transmitting a pilot signal that is encoded (e.g., spread/scrambled) using a particular pilot signature, an access point transmits a message that includes at least one indication of at least one other pilot signature. For example, an access point may use one PN offset to generate a pilot signal and transmit a message that identifies at least one other PN offset. An access terminal that receives the pilot signal and the message may then generate a pilot report that identifies all of these pilot signatures. Upon receiving a handover message including this pilot-related information, a target network entity with knowledge of the pilot signatures assigned to that access point may then accurately identify the access point as a target for handover of the access terminal.

Abstract translation: 基于多个导频签名识别接入点。 这里，除了发送使用特定导频签名进行编码（例如，扩频/加扰）的导频信号之外，接入点还发送包括至少一个其他导频签名的指示的消息。 例如，接入点可以使用一个PN偏移来产生导频信号并发送标识至少一个其它PN偏移的消息。 然后，接收导频信号和消息的接入终端可以生成识别所有这些导频签名的导频报告。 在接收到包括该导频相关信息的切换消息时，具有分配给该接入点的导频签名知识的目标网络实体可以准确地将接入点识别为接入终端的切换目标。

公开(公告)号：US20150011254A1

公开(公告)日：2015-01-08

申请号：US14456862

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Farhad Meshkati ,  Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Sumeeth Nagaraja

IPC: H04W24/10 ,  H04W52/24

CPC classification number: H04W24/10 ,  H04W52/143 ,  H04W52/16 ,  H04W52/18 ,  H04W52/24 ,  H04W52/34

Abstract: Transmit power for an access point is controlled based on measurement reports received by the access point from one or more access terminals that are not currently being served by the access point. In some aspects, transmit power is controlled based on the number of received messages that correspond to a particular event. In some aspects, transmit power is controlled based on the contents of the received messages. For example, the access point may use signal strength information included in the messages to determine a level of transmit power that mitigates interference at a defined subset of reporting access terminals.

Abstract translation: 接入点的发射功率是根据由接入点当前正在由接入点服务的一个或多个接入终端接收的测量报告进行控制的。 在一些方面，基于对应于特定事件的接收消息的数量来控制发射功率。 在一些方面，基于接收到的消息的内容来控制发射功率。 例如，接入点可以使用包括在消息中的信号强度信息来确定在报告接入终端的确定的子集处减轻干扰的发射功率的水平。

公开(公告)号：US20140135004A1

公开(公告)日：2014-05-15

申请号：US14159294

申请日：2014-01-20

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Leonard Henry Grokop ,  Vinay Chande ,  Sanjiv Nanda ,  Farhad Meshkati ,  Sumeeth Nagaraja

IPC: H04W52/24

CPC classification number: H04W52/245 ,  H04W28/18 ,  H04W52/143 ,  H04W52/242 ,  H04W52/243 ,  H04W52/247 ,  H04W52/281 ,  H04W52/325 ,  H04W52/50 ,  H04W72/085 ,  H04W84/045

Abstract: Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.

Abstract translation: 基于接入点接收的信息来控制接入点的发射功率。 例如，接入点可以采用使用从附近的接入终端接收的消息的一个或多个算法来维持在为接入点传输提供足够的覆盖区域和减轻这些传输在附近的接入终端处造成的干扰的可接受的折衷。 这里，接入点可以在接入终端初始化时采用基于网络侦听的算法，以提供初始的发射功率控制，直到为另一发射功率控制算法（例如，接入终端辅助算法）收集足够的信息。 此外，接入终端可以采用有源接入终端保护方案来减轻接入点否则可能导致与另一接入点主动通信的附近接入终端的干扰。

公开(公告)号：US20140071941A1

公开(公告)日：2014-03-13

申请号：US13795352

申请日：2013-03-12

Applicant: QUALCOMM INCORPORATED

Inventor： Ahmed K. Sadek ,  Rajat Prakash ,  Chirag Sureshbhai Patel

IPC: H04W8/26

CPC classification number: H04W8/26 ,  H04W24/02 ,  H04W48/12

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving PCI selection and/or allocation so as to reduce interference from unloaded cells. In one example, a network entity is equipped to determine whether a cell is loaded or unloaded, and allocate a PCI from a common pool of PCIs to the cell when the cell is unloaded. In another example, a network entity is equipped to determine that a cell is to transition between an unloaded state and a loaded state, and use a first PCI from a common PCI pool associated with the cell in the unloaded state and a second PCI associated with the cell in the loaded state. In another example, a communications device is equipped to attempt to access a first cell associated with a first PCI which indicated that the first cell is unloaded.

Abstract translation: 结合改进PCI选择和/或分配来提供用于无线通信的方法，装置和计算机程序产品，以便减少来自未加载小区的干扰。 在一个示例中，配备网络实体以确定单元是否被加载或卸载，并且当单元被卸载时，从PCI的共同池分配PCI到单元。 在另一示例中，网络实体被配备为确定小区将在卸载状态和加载状态之间转换，并且使用来自与处于卸载状态的小区相关联的公共PCI池的第一PCI和与该负载状态相关联的第二PCI 电池处于负载状态。 在另一示例中，通信设备被配备为尝试访问指示第一小区被卸载的与第一PCI相关联的第一小区。

公开(公告)号：US11979880B2

公开(公告)日：2024-05-07

申请号：US18063535

申请日：2022-12-08

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Tao Luo

IPC: H04W72/21 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04B7/0632 ,  H04L5/0053 ,  H04L5/0055

Abstract: Techniques for managing uplink communication on a wireless communication medium are disclosed.

公开(公告)号：US11096181B2

公开(公告)日：2021-08-17

申请号：US15876013

申请日：2018-01-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Sanaz Barghi ,  Chirag Sureshbhai Patel ,  Mohammad Naghshvar ,  Tamer Adel Kadous

IPC: H04W72/08 ,  H04W74/00 ,  H04B17/345 ,  H04W74/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described for monitoring interference level to selectively control usage of a contention-based protocol. In an example, a wireless device may transmit, while operating in a non-contention-based mode for a wireless link with a second wireless device, a first beamformed data transmission to the second wireless device over a shared channel. The wireless device may determine that an interference level condition is satisfied for the shared channel and transition from operating in the non-contention-based mode to operating in a contention-based mode for the wireless link based at least in part on the interference level condition being satisfied. The wireless device may perform a contention-based protocol, while operating in the contention-based mode for the wireless link with the second wireless device, prior to transmission of a second beamformed data transmission to the second wireless device over the shared channel.

公开(公告)号：US10952142B2

公开(公告)日：2021-03-16

申请号：US15633376

申请日：2017-06-26

Applicant: QUALCOMM Incorporated

Inventor： Andrei Dragos Radulescu ,  Alexei Yurievitch Gorokhov ,  Chengjin Zhang ,  Chirag Sureshbhai Patel ,  Tamer Kadous

IPC: H04L12/00 ,  H04W52/02 ,  H04W76/28 ,  H04W68/02 ,  H04W24/02 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station operating in unlicensed spectrum may temporarily increase a paging opportunity window (POW) size, or reduce a time between POWs, in order to meet performance metrics or account for time periods when a base station is unable to win access to the wireless medium during a POW. In some cases, a UE may identify a failed listen-before-talk procedure and autonomously update the POW size. In other examples, a base station may initiate a change in POW size or increase a number of paging opportunities in order to meet achieve one or more key performance indicators (KPIs). After a predetermined period, or after a triggering condition is no longer present, the UE and the base station may reset the POW size or the number of paging opportunities to a nominal amount to conserve power.

公开(公告)号：US10516618B2

公开(公告)日：2019-12-24

申请号：US15615831

申请日：2017-06-06

Applicant: QUALCOMM Incorporated

Inventor： Sanaz Barghi ,  Mohammad Naghshvar ,  Chirag Sureshbhai Patel ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04L12/851 ,  H04B17/309 ,  H04L5/00 ,  H04L29/06 ,  H04L12/853 ,  H04W74/00

Abstract: Techniques for managing preamble transmission and processing on a shared communication medium are disclosed. An access point or an access terminal, for example, may generate a preamble for silencing communication on a communication medium with respect to an upcoming data transmission, configure the preamble to identify one or more target devices for the silencing, and transmit the preamble over the communication medium in advance of the data transmission. Conversely, the access point or the access terminal may receive a preamble (as a receiving device) over a communication medium, identify one or more target devices for silencing communication on the communication medium with respect to an upcoming data transmission based on the preamble, and selectively silence communication over the communication medium based on itself (as the receiving device) being among the one or more target devices.