公开(公告)号：US20200128549A1

公开(公告)日：2020-04-23

申请号：US16721623

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADAK ,  Peter GAAL ,  Tamer KADOUS ,  Andrei Dragos RADULESCU

IPC: H04W72/04 ,  H04L29/06 ,  H04L5/14 ,  H04L5/00 ,  H04W74/08

Abstract: Techniques for managing re-contention on a shared communication medium are disclosed. In order to facilitate re-contending for access to the communication medium, an access point may adjust one or more uplink transmission parameters associated with a triggering condition for invoking a contention timer. In addition or as an alternative, the access point may mute transmission on the communication medium during one or more symbol periods designated for transmission. In addition or as an alternative, the access point may configure a timing advance to create a re-contention gap.

公开(公告)号：US20170332288A1

公开(公告)日：2017-11-16

申请号：US15526741

申请日：2015-11-12

Applicant: Ahmed Kamel SADEK ,  Tamer Adel KADOUS ,  Peng CHENG ,  Nachiappan VALLIAPPAN ,  Mohammad NAGHSHVAR ,  QUALCOMM Incorporated

Inventor： Ahmed Kamel SADEK ,  Tamer Adel KADOUS ,  Peng CHENG ,  Nachiappan VALLIAPPAN ,  Mohammad NAGHSHVAR

IPC: H04W36/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W36/0055 ,  H04L1/00 ,  H04L1/1887 ,  H04L5/001 ,  H04W28/18 ,  H04W36/0069 ,  H04W52/0216 ,  H04W72/00 ,  H04W72/0406 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/24 ,  Y02D70/25

Abstract: Techniques for co-existence between wireless Radio Access Technologies (RATs) are disclosed. During an active period of a Discontinuous Transmission (DTX) communication pattern, a first signal may be transmitted during a first subframe and a second signal may be transmitted during a second subframe, while during an inactive period the first signal may be transmitted during the first subframe and the second signal may be omitted during the second subframe. Retransmission of one or more packets may take place over a subset of less than all retransmission opportunities based on the DTX communication pattern. A Secondary Cell (SCell) may be reconfigured as the Primary Cell (PCell) and the PCell may be reconfigured as the SCell for one or more access terminals based on a load balancing condition or a channel selection condition.

公开(公告)号：US20170063484A1

公开(公告)日：2017-03-02

申请号：US15221294

申请日：2016-07-27

Applicant: QUALCOMM Incorporated

Inventor： Mohammad NAGHSHVAR ,  Ahmed Kamel SADEK ,  Nachiappan VALLIAPPAN

IPC: H04J11/00 ,  H04B17/318 ,  H04W40/24 ,  H04B17/336 ,  H04L5/00 ,  H04W74/08 ,  H04L29/06 ,  H04L12/801

CPC classification number: H04J11/0023 ,  H04B17/318 ,  H04B17/336 ,  H04L5/0055 ,  H04L47/29 ,  H04L69/22 ,  H04W16/14 ,  H04W16/32 ,  H04W28/14 ,  H04W40/244 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/12

Abstract: Aspects for reducing interference between networks are provided. A signal transmitted by one or more devices in 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 one or more devices in 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 period of 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. In addition, a number of active transmitters over the communications medium can be determined based at least in part on identifying a source entity related to transmission of the signal, and adjusting the time for communicating in the second network can be further based at least in part on the number of active transmitters.

Abstract translation: 提供了减少网络间干扰的方面。 通过通信介质使用未许可频谱的第一网络中的一个或多个设备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中的一个或多个设备的通信介质的利用水平。 可以至少部分地基于第一网络对通信介质的利用水平来调整用于使用非许可频谱在通信介质上在第二网络中进行通信的时间段。 此外，可以至少部分地基于识别与信号的传输有关的源实体来确定通信介质上的多个活动发射机，并且至少部分地还可以进一步地调整用于在第二网络中进行通信的时间 关于有源发射机的数量。

公开(公告)号：US20160353482A1

公开(公告)日：2016-12-01

申请号：US14845049

申请日：2015-09-03

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK ,  Tamer Adel KADOUS

IPC: H04W74/08 ,  H04L5/22 ,  H04W74/00

CPC classification number: H04W74/0816 ,  H04L5/22 ,  H04W16/14 ,  H04W74/004 ,  H04W88/06 ,  H04W88/10

Abstract: Techniques for reservation coordination and related operations in shared spectrum are disclosed. Communication over a communication medium may be performed in accordance with a first Radio Access Technology (RAT) and in accordance with a communication pattern of active periods and inactive periods of communication. A channel reservation message may be transmitted in accordance with a second RAT to reserve the communication medium for one of the active periods. The channel reservation message may be transmitted randomly at a plurality of successive burst slots. In addition or as an alternative, one or more medium access parameters associated with the channel reservation message may be set to a value below a threshold associated with aggressive contention.

Abstract translation: 公开了共享频谱中预约协调和相关操作的技术。 可以根据第一无线接入技术（RAT）和根据活动周期和非活动通信周期的通信模式来执行通信介质上的通信。 可以根据第二RAT发送信道预留消息，以保留用于其中一个活动周期的通信介质。 频道预留消息可以在多个连续的突发时隙随机发送。 另外或作为替代，与信道预留消息相关联的一个或多个媒体接入参数可以被设置为低于与侵略性争用相关联的阈值的值。

公开(公告)号：US20160234757A1

公开(公告)日：2016-08-11

申请号：US14620146

申请日：2015-02-11

Applicant: QUALCOMM Incorporated

Inventor： Kiran Kumar SOMASUNDARAM ,  Nachiappan VALLIAPPAN ,  Naga BHUSHAN ,  Dexu LIN ,  Ahmed Kamel SADEK

IPC: H04W48/08 ,  H04W12/10 ,  H04W16/14

CPC classification number: H04W48/08 ,  H04L63/0823 ,  H04W12/00516 ,  H04W12/10 ,  H04W16/14 ,  H04W48/16 ,  H04W84/12 ,  H04W88/10

Abstract: The present disclosure presents a method and an apparatus for transmitting discovery signaling from a base station. For example, the method may include encoding a wireless fidelity (Wi-Fi) beacon at the base station for transmission and transmitting the encoded Wi-Fi beacon from the base station to one or more neighboring wireless nodes. The Wi-Fi beacon is generated by a Wi-Fi access point (AP) co-located at the base station which is a long term evolution (LTE) or LTE advanced in unlicensed spectrum base station. As such, other wireless nodes can discover the LTE or LTE advanced in unlicensed spectrum base station.

Abstract translation: 本公开提供了一种用于从基站发送发现信令的方法和装置。 例如，该方法可以包括在基站处对无线保真（Wi-Fi）信标进行编码，以便传输，并将编码的Wi-Fi信标从基站发射到一个或多个相邻的无线节点。 Wi-Fi信标由位于基站的Wi-Fi接入点（AP）产生，该基站是长期演进（LTE）或未授权频谱基站中的LTE。 因此，其他无线节点可以在未许可频谱基站中发现LTE或LTE高级。

公开(公告)号：US20160219597A1

公开(公告)日：2016-07-28

申请号：US15090385

申请日：2016-04-04

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK

IPC: H04W72/04 ,  H04W36/06 ,  H04W72/08

CPC classification number: H04W72/0453 ,  H04W36/06 ,  H04W36/30 ,  H04W72/082 ,  H04W74/0808 ,  H04W84/045 ,  H04W84/12

Abstract: Systems and methods for improved interference management by Wi-Fi devices are disclosed. The interference management may be achieved by monitoring, by the Wi-Fi device, signaling energy on a communication channel in a frequency band associated with the Wi-Fi device, comparing the monitored signal energy with a known waveform signature corresponding to Long Term Evolution (LTE) operation, and identifying a presence of an LTE interferer on the communication channel in the frequency band associated with the Wi-Fi device based on the comparison.

公开(公告)号：US20160095040A1

公开(公告)日：2016-03-31

申请号：US14861872

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Tamer Adel KADOUS ,  Ahmed Kamel SADEK

IPC: H04W36/30 ,  H04W52/24 ,  H04W76/04 ,  H04W36/14 ,  H04L5/00

CPC classification number: H04W36/30 ,  H04L5/0044 ,  H04L5/0048 ,  H04W16/14 ,  H04W36/14 ,  H04W52/242 ,  H04W52/246 ,  H04W52/44 ,  H04W76/28 ,  H04W88/10

Abstract: Techniques for co-existence on a shared communication medium are disclosed. In one example, transmission in accordance with a first Radio Access Technology (RAT) may be punctured on one or more active periods of a Discontinuous Transmission (DTX) communication pattern based on monitoring of signaling associated with a second RAT. In addition or as an alternative, a transmission power level of an access point for transmission in accordance with a first RAT may be reduced based on one or more signal timing characteristics of signaling associated with a second RAT.

Abstract translation: 公开了在共享通信介质上共存的技术。 在一个示例中，根据第一无线电接入技术（RAT）的传输可以基于对与第二RAT相关联的信令的监视在一个或多个非连续传输（DTX）通信模式的一个或多个活动时段进行穿孔。 另外或作为替代，可以基于与第二RAT相关联的信令的一个或多个信号定时特性来减小根据第一RAT的用于传输的接入点的发射功率电平。

公开(公告)号：US20160037364A1

公开(公告)日：2016-02-04

申请号：US14446114

申请日：2014-07-29

Applicant: QUALCOMM Incorporated

Inventor： Peter KAIROUZ ,  Ahmed Kamel SADEK ,  Kambiz AZARIAN YAZDI ,  Nachiappan VALLIAPPAN

IPC: H04W24/08

CPC classification number: H04W24/08 ,  H04L1/0007 ,  H04L1/0015

Abstract: A method of interference management for a wireless device in a wireless communication system may comprise monitoring a packet error metric associated with transmissions over a communication channel of the wireless communication system, modifying a packet size attribute associated with MPDUs processed at the wireless device, identifying a bursty interference condition on the communication channel based on a change in the packet error metric in response to the modified packet size attribute, and generating a bursty interference indicator based on the identification of the bursty interference condition. Another method may comprise receiving a bursty interference indicator identifying a bursty interference condition on a communication channel of the wireless communication system, adjusting a packet size attribute associated with MPDUs processed at the wireless device based on the bursty interference indicator, and transmitting one or more MPDUs over the communication channel according to the adjusted packet size attribute.

Abstract translation: 一种用于无线通信系统中的无线设备的干扰管理方法可以包括监视与无线通信系统的通信信道上的传输相关联的分组错误度量，修改与在无线设备处理的MPDU相关联的分组大小属性， 响应于修改的分组大小属性，基于分组误差度量的变化，在通信信道上发生突发干扰条件，以及基于突发干扰条件的识别产生突发干扰指示符。 另一种方法可以包括：接收突发干扰指示符，其识别无线通信系统的通信信道上的突发干扰状况，基于突发干扰指示符调整与在无线设备处理的MPDU相关联的分组大小属性，以及发送一个或多个MPDU 根据调整的分组大小属性通过通信信道。

公开(公告)号：US20150163753A1

公开(公告)日：2015-06-11

申请号：US14275594

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK

IPC: H04W52/26 ,  H04W74/00

CPC classification number: H04W52/267 ,  H04W28/0205 ,  H04W28/0221 ,  H04W28/0236 ,  H04W52/241 ,  H04W72/1215 ,  H04W74/002 ,  H04W84/12

Abstract: Adaption of a Basic Service Set (BSS) Basic Rate Set for a Wireless Local Area Network (WLAN) Access Point (AP) may be achieved by, for example, determining a transmission power metric for one or more Subscriber Stations (STAs) associated with the AP, modifying one or more data rates in the BSS Basic Rate Set for the AP based on the transmission power metric, and transmitting the modified BSS Basic Rate Set to the one or more STAs.

Abstract translation: 基于无线局域网（WLAN）接入点（AP）的基本业务集（BSS）基本速率集的适配可以通过例如确定与一个或多个用户站相关联的一个或多个订户站（STA）的传输功率度量来实现 所述AP基于所述传输功率度量修改所述AP的基本速率组中的一个或多个数据速率，以及将修改的BSS基本速率集合发送到所述一个或多个STA。

公开(公告)号：US20150105067A1

公开(公告)日：2015-04-16

申请号：US14275505

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Nachiappan VALLIAPPAN ,  Ahmed Kamel SADEK

IPC: H04W24/08 ,  H04W72/08 ,  H04W36/06

CPC classification number: H04W72/0453 ,  H04W36/06 ,  H04W36/30 ,  H04W72/082 ,  H04W74/0808 ,  H04W84/045 ,  H04W84/12

Abstract: Systems and methods for improved interference management by Wi-Fi devices are disclosed. The interference management may be achieved by monitoring, by the Wi-Fi device, signaling energy on a communication channel in a frequency band associated with the Wi-Fi device, comparing the monitored signal energy with a known waveform signature corresponding to Long Term Evolution (LTE) operation, and identifying a presence of an LTE interferer on the communication channel in the frequency band associated with the Wi-Fi device based on the comparison.

Abstract translation: 公开了用于改进Wi-Fi设备的干扰管理的系统和方法。 干扰管理可以通过Wi-Fi设备监视与Wi-Fi设备相关联的频带中的通信信道上的信号能量来实现，将监视的信号能量与对应于长期演进的已知波形签名进行比较 LTE）操作，并且基于该比较，在与Wi-Fi设备相关联的频带中的通信信道上识别LTE干扰源的存在。