公开(公告)号：US20180220428A1

公开(公告)日：2018-08-02

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 ,  H04W74/02

CPC classification number: H04W72/082 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/086 ,  H04B17/345 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0055 ,  H04W72/046 ,  H04W74/008 ,  H04W74/02

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：US09954668B2

公开(公告)日：2018-04-24

申请号：US15074612

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04L5/22 ,  H04W16/14 ,  H04W72/04 ,  H04W16/16 ,  H04W72/08 ,  H04W52/04 ,  H04W76/28

CPC classification number: H04L5/22 ,  H04L1/188 ,  H04W16/14 ,  H04W16/16 ,  H04W52/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/082 ,  H04W76/28

Abstract: Techniques for managing co-existence on a shared communication medium are disclosed. An activation command or a deactivation command configuring an access terminal for activated operation or deactivated operation over a communication medium, respectively, may be exchanged in accordance with a Time Division Multiplexed (TDM) communication pattern defining active periods and inactive periods of communication over the communication medium. An acknowledgment message may be sent by, or received from, the access terminal in response to the activation command or the deactivation command. Communication may be activated or deactivated over the communication medium in accordance with the TDM communication pattern in response to the acknowledgment message indicating a positive acknowledgment of the activation command or the deactivation command, respectively, and not activated or deactivated over the communication medium in accordance with the TDM communication pattern in response to the acknowledgment message not indicating a positive acknowledgment of the activation or deactivation command.

公开(公告)号：US09936400B2

公开(公告)日：2018-04-03

申请号：US14852515

申请日：2015-09-12

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Akula Aneesh Reddy ,  Ahmed Kamel Sadek ,  Tamer Adel Kadous

IPC: H04W24/02 ,  H04W72/08 ,  H04L12/26 ,  H04W16/14 ,  H04W88/10

CPC classification number: H04W24/02 ,  H04L43/16 ,  H04W16/14 ,  H04W72/082 ,  H04W88/10

Abstract: Techniques for channel selection in a shared communication medium are disclosed. A communication apparatus may include one or more transceivers, a processor, and memory coupled to the processor and configured to store data and/or instructions. The one or more transceivers may be configured to monitor signaling on a plurality of available channels associated with a communication medium. The processor may be configured to determine an interference level for each of the plurality of available channels based on the monitored signaling, determine that the interference level for each of the plurality of available channels is greater than a first threshold, determine whether a triggering condition is met, and select the first channel of the plurality of channels as an operating channel for a primary radio access technology based on the triggering condition being met, the first channel having an interference level that is greater than a second threshold.

公开(公告)号：US09924368B2

公开(公告)日：2018-03-20

申请号：US14192139

申请日：2014-02-27

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan Valliappan ,  Tamer Adel Kadous ,  Ahmed Kamel Sadek ,  Andrei Dragos Radulescu

IPC: H04W16/14 ,  H04W72/04 ,  H04L27/00 ,  H04W52/38 ,  H04L5/00 ,  H04W52/24 ,  H04W52/34 ,  H04W52/14

CPC classification number: H04W16/14 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0073 ,  H04L27/0006 ,  H04W52/143 ,  H04W52/243 ,  H04W52/244 ,  H04W52/34 ,  H04W52/343 ,  H04W52/346 ,  H04W52/38 ,  H04W72/0453

Abstract: Apparatus and methods of wireless communications are described for determining one or more bands (e.g., guard bands in wireless local area networks (WLANs)) in unused portions of an unlicensed spectrum, positioning one or more carriers for cellular communication (e.g., long term evolution (LTE) or LTE advanced communication) in the one or more bands, and performing the cellular communication over the unlicensed spectrum using the one or more carriers. In some non-limiting example aspects, the cellular communication may be in a standalone mode and the one or more carriers may include a primary component carrier (PCC) that is positioned in a Wi-Fi guard band. In these non-limiting example aspects, the apparatus and methods may further include allocating one or more secondary component carriers (SCCs) in Wi-Fi guard bands or in Wi-Fi channels, where the one or more SCCs are opportunistically tuned or turned ON/OFF based on cell loading or backhaul constraints.

公开(公告)号：US09867194B2

公开(公告)日：2018-01-09

申请号：US13915389

申请日：2013-06-11

Applicant: QUALCOMM Incorporated

Inventor： Tamer Adel Kadous ,  Ashok Mantravadi

IPC: H04W72/04 ,  H04L5/00 ,  H04W28/04 ,  H04B7/0413 ,  H04W72/12

CPC classification number: H04W72/048 ,  H04B7/0413 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0091 ,  H04W28/04 ,  H04W72/04 ,  H04W72/1284

Abstract: A system capacity improvement is achieved by dynamically selecting a particular antenna mode of operation from the multiple radio access technology modes. In some implementations, the system capacity improvement is achieved by dynamically generating an indication of a user equipment (UE) antenna capability during a communication connection. The UE's indication of its antenna capability is dynamic and/or is subject to change throughout the duration of the communication connection. The indication may be sent to a base station.

公开(公告)号：US09832785B2

公开(公告)日：2017-11-28

申请号：US15181316

申请日：2016-06-13

Applicant: QUALCOMM INCORPORATED

Inventor： Tamer Adel Kadous ,  Pranav Dayal ,  Ashok Mantravadi ,  Peter Gaal ,  Jibing Wang

IPC: H04B1/00 ,  H04W72/12 ,  H04W52/24 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W52/243 ,  H04W72/1231 ,  H04W88/06

Abstract: A method of wireless communication includes adjusting a channel quality indicator (CQI) to compensate for coexistence interference experienced between communication resources (such as an LTE radio and a Bluetooth radio). The CQI may be set to zero, falsely indicating to a serving enhanced NodeB that a UE is out of range, thereby creating a gap in LTE operation that may be used by an alternate radio access technology. To compensate for fluctuating interference, the CQI may be adjusted to incorporate average coexistence interference over a period of time. Alternatively, the CQI at a time may incorporate coexistence interference regardless of whether interference is experienced at that specific time. A CQI value may also be boosted to compensate for a CQI backoff. CQI may be adjusted to avoid a spiral of death effect.

公开(公告)号：US09788361B2

公开(公告)日：2017-10-10

申请号：US14859124

申请日：2015-09-18

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan Valliappan ,  Tamer Adel Kadous

IPC: H04W76/04 ,  H04L12/26 ,  H04W72/04 ,  H04W72/08 ,  H04W52/02 ,  H04W84/12 ,  H04W24/02 ,  H04W48/16

CPC classification number: H04W76/048 ,  H04L43/106 ,  H04L43/16 ,  H04W16/14 ,  H04W24/02 ,  H04W48/16 ,  H04W52/0216 ,  H04W72/0446 ,  H04W72/08 ,  H04W76/28 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/25

Abstract: Techniques for setting transmission parameters in a shared communication medium are disclosed. A communication method in accordance with the present disclosure may include, for example, receiving in accordance with a first RAT a first management frame indicating a first BSSID and a second management frame indicating a second BSSID different from the first BSSID, calculating a timestamp difference between a first management frame timestamp included in the first management frame and a second management frame timestamp included in the second management frame, the first BSSID and the second BSSID to a first grouping associated with a first physical access point based on the timestamp difference, and selecting one or more operating channels or setting one or more parameters of a DTX communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication.

公开(公告)号：US20150350919A1

公开(公告)日：2015-12-03

申请号：US14288239

申请日：2014-05-27

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sureshbhai Patel ,  Mehmet Yavuz ,  Vinay Chande ,  Tamer Adel Kadous

IPC: H04W16/18 ,  H04L12/26 ,  H04W24/02

CPC classification number: H04W16/18 ,  H04L43/04 ,  H04W24/02 ,  H04W72/0426 ,  H04W72/082 ,  H04W72/1289

Abstract: In a wireless communication system, a cell may perform a method for adapting a long-term or short-term almost blank subframe (ABS) configuration, including determining, by the cell, a current neighbor cell deployment state, and adapting a long-term downlink ABS configuration of the cell based on the current neighbor cell deployment state. The current neighbor cell deployment state may include, for example, a number of neighbor cells, signal strengths of the neighbor cells, or a number of users being served in Cell Range Expansion (CRE), which may be determined using a Neighbor Listen module, receiving measurement reports from UEs, or receiving reports from small cell neighbors via a backhaul. Adapting the long-term downlink ABS configuration of the cell may include increasing a proportion of ABS-vacated resources in proportion to an change in neighbor cell deployment density, increasing neighbor cell signal strength, or increasing number of users served in CRE by neighbor cells.

Abstract translation: 在无线通信系统中，小区可以执行用于适应长期或短期几乎空白子帧（ABS）配置的方法，包括由小区确定当前相邻小区部署状态，并且适应长期 基于当前相邻小区部署状态的小区的下行ABS配置。 当前相邻小区部署状态可以包括例如多个相邻小区，相邻小区的信号强度或者可以使用邻居监听模块确定的小区范围扩展（CRE）中服务的多个用户， 从UE接收测量报告，或通过回程接收来自小型小区邻居的报告。 适应小区的长期下行链路ABS配置可以包括随着相邻小区部署密度的变化，增加邻居小区信号强度或者由邻居小区在CRE中服务的用户数量的增加而增加ABS空闲资源的比例。

公开(公告)号：US09155106B2

公开(公告)日：2015-10-06

申请号：US14162127

申请日：2014-01-23

Applicant: QUALCOMM Incorporated

Inventor： Ranganathan Krishnan ,  Rajiv Vijayan ,  Tamer Adel Kadous

IPC: H04L5/00 ,  H04W74/00 ,  H04W52/32 ,  H04L25/02 ,  H04W72/04

CPC classification number: H04W74/004 ,  H04L5/0023 ,  H04L5/0041 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/0248 ,  H04W52/325 ,  H04W72/0413

Abstract: Techniques to more efficiently transmit pilot and signaling on the uplink in an OFDM system. With subband multiplexing, M usable subbands in the system are partitioned into Q disjoint groups of subbands. Each subband group may be assigned to a different terminal for uplink pilot transmission. Multiple terminals may transmit simultaneously on their assigned subbands. The transmit power for the pilot may be scaled higher to attain the same total pilot energy even though S instead of M subbands are used for pilot transmission by each terminal. Pilot transmissions from the terminals are received, and a channel estimate is derived for each terminal based on the pilot received on the assigned subbands. The channel estimate comprises a response for additional subbands not included in the assigned group. Subband multiplexing may also be used for uplink signaling transmission.

Abstract translation: 在OFDM系统中在上行链路上更有效地发送导频和信令的技术。 通过子带复用，系统中的M个可用子带被划分成Q个不相关的子带组。 每个子带组可被分配给用于上行链路导频传输的不同终端。 多个终端可以在其分配的子带上同时发送。 即使S代替M个子带用于每个终端的导频传输，导频的发射功率也可以按比例更高以获得相同的总导频能量。 接收来自终端的导频传输，并且基于在所分配的子带上接收到的导频，为每个终端导出信道估计。 信道估计包括对未分配组中的附加子带的响应。 子带复用也可以用于上行链路信令传输。

公开(公告)号：US20150282154A1

公开(公告)日：2015-10-01

申请号：US14229642

申请日：2014-03-28

Applicant: QUALCOMM Incorporated

Inventor： Mehmet Yavuz ,  Chirag Sureshbhai Patel ,  Tamer Adel Kadous ,  Vinay Chande

IPC: H04W72/04 ,  H04B7/04 ,  H04W28/02

CPC classification number: H04W72/048 ,  H04B7/0426 ,  H04W28/0221 ,  H04W52/0238 ,  H04W52/0245 ,  H04W52/0277 ,  H04W52/028 ,  H04W88/06 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: A system and method for operation mode adaptation is operable by a network entity that determines channel conditions between the network entity and a second network entity. The network entity determines its hardware constraints and power consumption requirements. The network entity balances data throughput with power consumption for the network entity by selecting a hardware allocation, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements. In some implementations, the network entity balances data throughput with power consumption for the network entity by selecting an operation mode, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements.

Abstract translation: 用于操作模式适配的系统和方法由确定网络实体和第二网络实体之间的信道状况的网络实体操作。 网络实体确定其硬件约束和功耗要求。 网络实体至少部分地基于信道条件，硬件约束和功耗要求，通过选择硬件分配来平衡数据吞吐量与网络实体的功耗。 在一些实现中，网络实体至少部分地基于信道条件，硬件约束和功耗要求，通过选择操作模式来平衡数据吞吐量和网络实体的功耗。