公开(公告)号：WO2015089253A3

公开(公告)日：2015-08-06

申请号：PCT/US2014069673

申请日：2014-12-11

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL

IPC: H04W72/12 ,  H04L1/00 ,  H04W48/16 ,  H04W74/08 ,  H04W88/06

CPC classification number: H04W72/0446 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0009 ,  H04W48/00 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1263 ,  H04W74/0808 ,  H04W76/025

Abstract: Systems and methods for Carrier Sense Adaptive Transmission (CSAT) communication in unlicensed spectrum are disclosed. Interference between Radio Access Technologies (RATs) may be reduced utilizing CSAT by, for example: receiving signals via a resource, wherein a first RAT is used to receive the signals; identifying utilization of the resource associated with the first RAT, wherein the identification is based on the received signals; cycling operation of a second RAT between activated and deactivated periods of transmission over the resource in accordance with a Time Division Multiplexing (TDM) communication pattern, wherein the cycling is based on the identified utilization of the resource; and transmitting an Activation / Deactivation Medium Access Control (MAC) Control Element (CE) to a user device associated with the second RAT to activate or deactivate the user device in accordance with the TDM communication pattern.

Abstract translation: 公开了无许可频谱中载波侦听自适应传输（CSAT）通信的系统和方法。 无线接入技术（RAT）之间的干扰可以利用CSAT来减少，例如：经由资源接收信号，其中使用第一RAT来接收信号; 识别与第一RAT相关联的资源的利用，其中所述标识基于所接收的信号; 根据时分复用（TDM）通信模式，在资源之间的激活和去激活的传输周期之间的第二RAT的循环操作，其中循环基于所识别的资源的利用; 以及向与所述第二RAT相关联的用户设备发送激活/停用介质访问控制（MAC）控制元素（CE），以根据所述TDM通信模式激活或去激活所述用户设备。

公开(公告)号：WO2015088950A3

公开(公告)日：2015-07-30

申请号：PCT/US2014069021

申请日：2014-12-08

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL

IPC: H04W16/08 ,  H04W16/14

CPC classification number: H04W16/08 ,  H04W16/14 ,  H04W84/045

Abstract: Systems and methods for interference mitigation in unlicensed spectrum are disclosed. In an aspect, the methods and apparatus may include requesting, by a first network entity, one or more user equipments (UEs) to perform a plurality of frequency measurements, wherein the plurality of frequency measurements comprises measurements in a licensed spectrum and measurements in an unlicensed spectrum. Further, the methods and apparatus may include calculating a power back-off value based on the plurality of frequency measurements. Moreover, the methods and apparatus may include adjusting a cell coverage based on the power back-off value such that the one or more UEs are outside the cell coverage.

Abstract translation: 公开了用于在未经许可的频谱中减轻干扰的系统和方法。 在一个方面中，所述方法和设备可以包括由第一网络实体请求一个或多个用户设备（UE）执行多个频率测量，其中所述多个频率测量包括在许可频谱中的测量以及在 未经许可的频谱。 此外，所述方法和设备可以包括基于所述多个频率测量来计算功率回退值。 此外，该方法和设备可以包括基于功率回退值调整小区覆盖范围，使得一个或多个UE在小区覆盖范围之外。

公开(公告)号：WO2015035019A9

公开(公告)日：2015-06-18

申请号：PCT/US2014054048

申请日：2014-09-04

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL ,  TOKGOZ YELIZ ,  YAVUZ MEHMET ,  KADOUS TAMER ADEL ,  FAN MINGXI ,  REDDY AKULA ANEESH

IPC: H04W72/04

CPC classification number: H04W24/08 ,  H04W24/02 ,  H04W72/0453 ,  H04W84/045

Abstract: Systems and methods for managing communication in an unlicensed band of frequencies to supplement communication in a licensed band of frequencies in unlicensed spectrum are disclosed. The management may comprise, for example, monitoring utilization of resources currently available to a first Radio Access Technology (RAT) via at least one of a Primary Cell (PCell) operating in the licensed band, a set of one or more Secondary Cells (SCells) operating in the unlicensed band, or a combination thereof. Based on the utilization, a first SCell among the set of SCells may be configured or de-configured with respect to operation in the unlicensed band.

公开(公告)号：WO2017027807A3

公开(公告)日：2017-04-06

申请号：PCT/US2016046779

申请日：2016-08-12

Applicant: QUALCOMM INC

Inventor： KADOUS TAMER ADEL ,  VALLIAPPAN NACHIAPPAN ,  SADEK AHMED KAMEL ,  RADULESCU ANDREI DRAGOS

IPC: H04L1/18 ,  H04L1/12 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04 ,  H04W74/02

CPC classification number: H04L5/0055 ,  H04L1/1635 ,  H04L1/1854 ,  H04L1/1858 ,  H04L1/1861 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/14 ,  H04L2001/125 ,  H04W16/14 ,  H04W48/00 ,  H04W72/0446 ,  H04W74/0833

Abstract: Techniques for managing contention on a shared communication medium are disclosed. Various techniques are provided to facilitate aspects such as reference signaling, downlink medium access, uplink medium access, resource reuse, channel structures, acknowledgment schemes, fairness, acquisition, random access, paging, mobility, inter-operator mitigation, and so on for a frame structure implemented on the shared communication medium.

Abstract translation: 公开了在共享通信介质上管理争用的技术。 提供了各种技术来促进诸如参考信令，下行链路媒体接入，上行链路媒体接入，资源重用，信道结构，确认方案，公平性，获取，随机接入，寻呼，移动性，运营商间减轻等方面 帧结构在共享通信介质上实现。

公开(公告)号：WO2015047912A3

公开(公告)日：2015-05-28

申请号：PCT/US2014056616

申请日：2014-09-19

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL ,  NAGHSHVAR MOHAMMAD ,  VALLIAPPAN NACHIAPPAN

IPC: H04W16/14 ,  H04W72/12

CPC classification number: H04W16/14 ,  H04L43/0894 ,  H04W72/1215

Abstract: Aspects for reducing interference between networks are provided. A signal transmitted by a first network over a communications medium using an unlicensed frequency spectrum is decoded to determine one or more parameters of a packet in the signal. A level of utilization of the communications medium by the first network can be estimated based at least in part on a signal strength of the signal and the one or more parameters. A time for communicating in a second network over the communications medium using the unlicensed frequency spectrum can be adjusted based at least in part on the level of utilization of the communications medium by the first network.

Abstract translation: 提供了减少网络间干扰的方面。 由第一网络使用非授权频谱通过通信介质发送的信号被解码以确定信号中的分组的一个或多个参数。 可以至少部分地基于信号的信号强度和一个或多个参数来估计第一网络对通信介质的利用水平。 至少部分地基于第一网络对通信介质的利用水平，可以调整使用非授权频谱通过通信介质在第二网络中进行通信的时间。

公开(公告)号：WO2015047777A2

公开(公告)日：2015-04-02

申请号：PCT/US2014055732

申请日：2014-09-16

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL

CPC classification number: H04W16/14 ,  H04J3/00 ,  H04J3/16 ,  H04L5/0053 ,  H04L5/0098 ,  H04W72/082 ,  H04W72/1215 ,  H04W74/0808 ,  H04W76/048

Abstract: Systems and methods for Carrier Sense Adaptive Transmission (CSAT) and related operations in unlicensed spectrum are disclosed to reduce interference between co-existing Radio Access Technologies (RATs). The parameters for a given CSAT communication scheme may be adapted dynamically based on received signals from a transceiver for a native RAT to be protected and an identification of how that RAT is utilizing a shared resource such as an unlicensed band. Other operations such as Discontinuous Reception (DRX) may be aligned with a CSAT Time Division Multiplexed (TDM) communication pattern by way of a DRX broadcast / multicast message. Different TDM communication patterns may be staggered in time across different frequencies. Channel selection for a co-existing RAT may also be configured to afford further protection to native RATs by preferring operation on secondary channels as opposed to primary channels.

公开(公告)号：WO2014043585A3

公开(公告)日：2014-07-03

申请号：PCT/US2013059821

申请日：2013-09-13

Applicant: QUALCOMM INC

Inventor： SADEK AHMED KAMEL ,  PRAKASH RAJAT ,  PATEL CHIRAG SURESHBHAI

IPC: H04W8/26 ,  H04W36/00

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，以减少来自未加载小区的干扰。 在一个示例中，网络实体被配备为确定小区是否被加载或卸载，并且当小区被卸载时从共用的PCI池分配PCI到该小区。 在另一个示例中，网络实体被配备为确定小区要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和与第 处于加载状态的单元格。 在另一个示例中，通信设备被配备为尝试访问与指示第一小区被卸载的第一PCI相关联的第一小区。

公开(公告)号：WO2017040713A3

公开(公告)日：2017-04-13

申请号：PCT/US2016049773

申请日：2016-08-31

Applicant: QUALCOMM INC

Inventor： CHENDAMARAI KANNAN ARUMUGAM ,  LUO TAO ,  SADEK AHMED KAMEL ,  VALLIAPPAN NACHIAPPAN ,  PATEL CHIRAG SURESHBHAI ,  FAN MINGXI ,  KADOUS TAMER ADEL

IPC: H04W56/00 ,  H04L5/00

CPC classification number: H04W56/0015 ,  H04L5/005 ,  H04W16/14 ,  H04W56/002

Abstract: Techniques for synchronization on a shared communication medium are disclosed. An access point may select, for example, a common sequence, frequency, and time for a first synchronization signal that is coordinated with one or more other access points. The access point may then transmit the first synchronization signal in accordance with the common sequence, frequency, and time. An access terminal may receive, from an access point, a first synchronization signal having a first sequence and a second synchronization signal having a second sequence. The access terminal may then determine an offset in time between the first synchronization signal and the second synchronization signal, and determine a cell identifier group associated with the access point based on the offset.

Abstract translation: 公开了在共享通信介质上进行同步的技术。 接入点可以选择例如与一个或多个其他接入点协调的第一同步信号的公共序列，频率和时间。 然后，接入点可以根据公共序列，频率和时间发送第一同步信号。 接入终端可以从接入点接收具有第一序列的第一同步信号和具有第二序列的第二同步信号。 然后，接入终端可以确定在第一同步信号和第二同步信号之间的时间偏移，并且基于偏移来确定与接入点相关联的小区标识符组。

公开(公告)号：WO2016048712A8

公开(公告)日：2017-03-16

申请号：PCT/US2015050167

申请日：2015-09-15

Applicant: QUALCOMM INC

Inventor： BHUSHAN NAGA ,  SMEE JOHN EDWARD ,  JI TINGFANG ,  SADEK AHMED KAMEL ,  MUKKAVILLI KRISHNA KIRAN ,  SORIAGA JOSEPH BINAMIRA

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00

CPC classification number: H04W16/14 ,  H04W74/0808 ,  H04W84/042

Abstract: Shared spectrum operation is disclosed for sharing spectrum among multiple wireless deployments. Coordination procedures between and among 2nd and 3rd Tier deployments include the use of beacons transmitted by the 2nd Tier for clearing access to spectrum occupied by 3rd Tier users and multiple 3rd Tier deployments sharing resources using a group-listen before talk (LBT) protocol, rather than a per-node LBT protocol. The 2nd Tier beacon signals are transmitted to alert 3rd Tier users of their presence, which, upon detection, will leave the particular spectrum within a predetermined time. For the shared LBT protocol, the 3rd Tier deployments share the channel with each other through an LBT with random backoff, in which the start time of clear channel assessment (CCA) procedure and the random backoff values are synchronized among nodes of the same deployment.

Abstract translation: 公开了共享频谱操作，用于在多个无线部署之间共享频谱。 第二和第三层部署之间的协调程序包括使用第二层传输的信标，清除对第3层用户占用的频谱的访问，以及使用群聊聆听（LBT）协议共享资源的多个第3层部署 比每个节点的LBT协议。 发送第二层信标信号以警告第三层用户的存在，其在检测时将在预定时间内离开特定频谱。 对于共享LBT协议，第三层部署通过具有随机退避的LBT彼此共享信道，其中清除信道评估（CCA）过程的开始时间和随机退避值在同一部署的节点之间同步。

公开(公告)号：WO2015123573A3

公开(公告)日：2015-10-22

申请号：PCT/US2015015903

申请日：2015-02-13

Applicant: QUALCOMM INC

Inventor： KADOUS TAMER ADEL ,  SADEK AHMED KAMEL ,  JI TINGFANG ,  FAN MINGXI

IPC: H04W16/14 ,  H04B7/26 ,  H04W24/10 ,  H04W72/12 ,  H04W74/04 ,  H04W84/04 ,  H04W84/12 ,  H04W88/10

CPC classification number: H04B7/2643 ,  H04W16/14 ,  H04W24/10 ,  H04W72/1215 ,  H04W74/04 ,  H04W84/045 ,  H04W84/12 ,  H04W88/10

Abstract: Techniques for managing operation on a communication medium shared between Radio Access Technologies (RATs) are disclosed. The management may comprise, for example, monitoring the medium for first RAT signaling in accordance with a first RAT; determining a utilization metric associated with utilization of the medium by the first RAT signaling; cycling operation in accordance with a second RAT between activated periods and deactivated periods of communication over the medium in accordance with a Time Division Multiple Access (TDM) communication pattern based on the utilization metric; and periodically disabling the cycling to provide an AOS period of activated communication over the medium for operation in accordance with the second RAT, with the AOS period being longer than an individual activated period of the TDM communication pattern. The management may also comprise, for example, techniques for enabling / disabling monitoring by an access terminal in accordance with the TDM communication pattern.

Abstract translation: 公开了用于管理在无线电接入技术（RAT）之间共享的通信介质上的操作的技术。 该管理可以包括例如根据第一RAT监视介质的第一RAT信令; 确定与所述第一RAT信令对所述介质的利用相关联的利用度量; 根据基于所述利用率度量的时分多址（TDM）通信模式，在激活的时段和通过所述介质的通信的停用时段之间根据第二RAT进行循环操作; 以及周期性地停用所述循环以在所述介质上提供激活通信的AOS时段以便根据所述第二RAT进行操作，所述AOS时段比所述TDM通信模式的单独激活时段长。 管理器还可以包括例如用于根据TDM通信模式来启用/禁用接入终端的监视的技术。