公开(公告)号：US20140254649A1

公开(公告)日：2014-09-11

申请号：US13788811

申请日：2013-03-07

Applicant: QUALCOMM INCORPORATED

Inventor： Hassan Afkhami ,  Purva R. Rajkotia ,  Manjunath Anandarama Krishnam

IPC: H04L1/00

CPC classification number: H04L1/0002 ,  H04L1/0026 ,  H04L1/203 ,  H04L5/0007

Abstract: Rate adaptation in network communications can be determined, at least in part, by bit error rates through network communication channels. Bit error rates can provide an indication of channel conditions and can guide selection of data rate settings by network devices. Relatively good channel conditions can support relatively higher data rates while communication channels with relatively more noise and/or interference can support relatively lower data rates. Transmitted data can be coded with Forward Error Correction codes that can allow determination of bit error rates resulting from transmission. In one embodiment, bit error rates can guide carrier selection when data is transmitted with groups of two or more carriers such as with orthogonal frequency division multiplexing modulation.

Abstract translation: 可以至少部分地通过网络通信信道的比特错误率来确定网络通信中的速率适配。 位错误率可以提供信道条件的指示，并可以指导网络设备对数据速率设置的选择。 相对较好的信道条件可以支持相对较高的数据速率，而具有相对较多噪声和/或干扰的通信信道可以支持相对较低的数据速率。 传输的数据可以使用可以允许确定由传输产生的误码率的前向纠错码进行编码。 在一个实施例中，当使用诸如使用正交频分复用调制的两个或多个载波的组发送数据时，比特错误率可以指导载波选择。

公开(公告)号：US20140192846A1

公开(公告)日：2014-07-10

申请号：US13738583

申请日：2013-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： Hassan Afkhami ,  Purva R. Rajkotia ,  Manjunath Anandarama Krishnam

IPC: H04B3/46 ,  H04B1/38 ,  H04B3/54 ,  H04L27/26

CPC classification number: H04B3/46 ,  H04B3/542 ,  H04L27/2607 ,  H04L27/2646

Abstract: In some embodiments, a method includes receiving, at a receiver of a first device via a channel of a communication medium, multiple data transmissions. Each data transmission of the multiple data transmissions has a guard interval of multiple guard intervals, wherein the multiple guard intervals have different lengths. The method includes determining, based on signal characteristics of the multiple data transmissions, the data transmission from among the multiple data transmissions having a preferred physical data rate. The method includes setting a length of an adjusted guard interval for the channel for data communication from a transmitter of a second device to the receiver of the first device via the communication medium, to a length of the guard interval for the data transmission having the preferred physical data rate.

Abstract translation: 在一些实施例中，一种方法包括经由通信介质的信道在第一设备的接收机处接收多个数据传输。 多个数据传输的每个数据传输具有多个保护间隔的保护间隔，其中多个保护间隔具有不同的长度。 该方法包括基于多个数据传输的信号特性来确定具有优选物理数据速率的多个数据传输中的数据传输。 该方法包括将用于数据通信的信道的经调整的保护间隔的长度从第二设备的发射机经由通信介质设置到第一设备的接收机到具有优选的数据传输的保护间隔的长度 物理数据速率。

公开(公告)号：US20130279621A1

公开(公告)日：2013-10-24

申请号：US13923153

申请日：2013-06-20

Applicant: QUALCOMM Incorporated

Inventor： Lawrence Winston Yonge, III ,  Srinivas Katar ,  Manjunath Anandarama Krishnam

IPC: H04L1/00

CPC classification number: H04L1/0001 ,  H04W16/14 ,  H04W28/0231 ,  H04W52/245 ,  H04W56/0095 ,  H04W74/0808

Abstract: A method includes determining a signal strength value for a first received signal received from a first station in a first network. The first received signal is received in the first network through a shared communication medium that is shared with a second network. The method includes receiving an indicator of a signal strength value determined for a second received signal from a second station in the second network. Based on the signal strength value for the first received signal and based on the indicator of the signal strength value determined for the second received signal, a detection threshold is selected such that, in response to a third received signal having a signal strength in excess of the detection threshold, the third received signal is processed according to a protocol of the first network and is not processed according to a protocol of the second network.

Abstract translation: 一种方法包括确定从第一网络中的第一站接收的第一接收信号的信号强度值。 第一接收信号通过与第二网络共享的共享通信介质在第一网络中被接收。 该方法包括从第二网络中的第二站接收为第二接收信号确定的信号强度值的指示符。 基于第一接收信号的信号强度值，并且基于为第二接收信号确定的信号强度值的指标，选择检测阈值，使得响应于信号强度超过 检测阈值，第三接收信号根据第一网络的协议被处理，并且不根据第二网络的协议进行处理。

公开(公告)号：US20130272315A1

公开(公告)日：2013-10-17

申请号：US13917394

申请日：2013-06-13

Applicant: QUALCOMM Incorporated

Inventor： Lawrence Winston Yonge, III ,  Srinivas Katar ,  Manjunath Anandarama Krishnam

IPC: H04L12/413

CPC classification number: H04L47/787 ,  H04B2203/5445 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/413 ,  H04L12/44 ,  H04L45/12 ,  H04L45/121 ,  H04L45/122 ,  H04L45/123 ,  H04L45/125 ,  H04L45/16

Abstract: Communicating among stations in a network includes, from each of multiple stations in the network, transmitting information indicating which other stations from which that station is able to reliably receive transmissions. A schedule for communicating among the stations is determined based on the information from the stations and transmitting the schedule over the network. The schedule includes a plurality of time slots during which respective contention groups of stations are assigned to communicate using a contention-based protocol.

Abstract translation: 在网络中的站间通信包括从网络中的多个站中的每一个发送指示哪个站能够可靠地接收传输的哪些站。 基于来自站的信息并通过网络发送调度来确定站间通信的时间表。 该调度包括多个时隙，在该时隙期间，各个竞争组被分配以使用基于争用的协议进行通信。