公开(公告)号：US11032035B2

公开(公告)日：2021-06-08

申请号：US16417427

申请日：2019-05-20

Applicant: QUALCOMM Incorporated

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04L5/00 ,  H04L5/02 ,  H04L27/26

Abstract: A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time instants in the symbol duration. A plurality of tones are allocated to a particular communication device, and a discrete signal is constructed in the time domain by mapping symbols from the constellation to the time instants. A continuous signal is generated by applying an interpolation function to the discrete signal such that the continuous signal only includes sinusoids having frequencies which are equal to the allocated tones.

公开(公告)号：US10313069B2

公开(公告)日：2019-06-04

申请号：US15226181

申请日：2016-08-02

Applicant: QUALCOMM Incorporated

Inventor： Rajiv Laroia ,  Junyi Li ,  Sathyadev Venkata Uppala

IPC: H04L5/00 ,  H04L5/02 ,  H04L27/26

Abstract: A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time instants in the symbol duration. A plurality of tones are allocated to a particular communication device, and a discrete signal is constructed in the time domain by mapping symbols from the constellation to the time instants. A continuous signal is generated by applying an interpolation function to the discrete signal such that the continuous signal only includes sinusoids having frequencies which are equal to the allocated tones.

公开(公告)号：US10244442B2

公开(公告)日：2019-03-26

申请号：US14542354

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

Inventor： Samir Kapoor ,  Junyi Li ,  Rajiv Laroia

IPC: H04W36/06 ,  H04L5/14 ,  H04W72/02

Abstract: Transmission techniques using configurable channels for the downlink and/or uplink are described. In one aspect, the downlink channel and/or uplink channel may be independently selected for a terminal. The terminal may establish a connection with a base station on default downlink and uplink channels. Another downlink channel and/or another uplink channel may be selected based on various factors such as channel quality, loading, and interference. The terminal would then switch to the new downlink and/or uplink channel for communication. In another aspect, the base stations broadcast sector information used by the terminals for communication and/or channel selection. The sector information may include various types of information such as the available downlink and uplink channels, the frequencies of the available channels, the loading on the available channels, and QoS information. The terminals may select a sector, a downlink channel, and/or an uplink channel based on the sector information.

公开(公告)号：US09992756B2

公开(公告)日：2018-06-05

申请号：US13965480

申请日：2013-08-13

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajiv Laroia ,  Mathew Scott Corson

IPC: H04J3/06 ,  H04B7/00 ,  H04W36/00 ,  H04W56/00 ,  H04W36/18 ,  H04W52/40 ,  H04W88/02 ,  H04W52/02

CPC classification number: H04W56/001 ,  H04W36/18 ,  H04W52/0203 ,  H04W52/0212 ,  H04W52/0245 ,  H04W52/40 ,  H04W56/00 ,  H04W88/02 ,  Y02D70/00 ,  Y02D70/20

Abstract: Methods and apparatus which allow a wireless terminal (302) to simultaneously maintain connections with multiple base stations (304, 306) are described. Each wireless terminal (302) is capable of supporting multiple separate timing and/or other control loops one, for each base station connection thereby allowing the connections to operate independently and in parallel. Different control signals and/or data are transmitted on each connection that is established with a base station (302, 306). In this manner base stations (302, 306) receive different data allowing for asynchronous data transmission. The data received by the base stations (302, 306) can be supplied to a wired asynchronous network (308) without the need to combine the received data prior to supplying it to the wired network (308). The communications techniques of the invention can be used to implement soft handoffs without the need to duplicate data transmissions to multiple base stations.

公开(公告)号：US09432817B2

公开(公告)日：2016-08-30

申请号：US13855554

申请日：2013-04-02

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Thomas J. Richardson ,  Rajiv Laroia

IPC: H04W4/06 ,  H04L5/00 ,  H04W72/00 ,  H04L27/26

CPC classification number: H04W4/06 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/261 ,  H04W72/005

Abstract: Systems and methodologies are described that facilitate transmitting at least two different types of information in a single signal, whereby the different types of information can be encoded and decoded independently. Thus, changes to one type of information does not affect a second type of information.

公开(公告)号：US09119163B2

公开(公告)日：2015-08-25

申请号：US13733762

申请日：2013-01-03

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajiv Laroia

IPC: H04W52/24 ,  H04W52/26 ,  H04W52/30 ,  H04W52/38 ,  H04W52/28 ,  H04W52/36 ,  H04W76/02

CPC classification number: H04W52/243 ,  H04W52/265 ,  H04W52/281 ,  H04W52/30 ,  H04W52/367 ,  H04W52/383 ,  H04W76/15

Abstract: Methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage are described. A base station transmits a signal to be used by a peer to peer wireless terminal in controlling its peer to peer transmit power level. The peer to peer wireless terminal receives and measures the strength of the base station signal. The measurement information is used in determining whether or not peer to peer signal transmission is permitted and/or in determining a peer to peer transmission power level. Current service level information and/or encoded information, e.g., an interference level indicator value, conveyed by the received base station signal are, in various embodiments, also utilized in determining a peer to peer transmission power level.

Abstract translation: 描述了与广域网（WAN）上行带宽共享的对等通信信令使用相关的方法和设备。 基站发送对等无线终端要控制其对等发射功率电平的信号。 对等无线终端接收并测量基站信号的强度。 测量信息用于确定是否允许对等信号传输和/或确定对等传输功率电平。 在各种实施例中，由接收的基站信号传送的当前业务级信息和/或编码信息，例如干扰级指示符值，也用于确定对等传输功率级别。

公开(公告)号：US20150043374A1

公开(公告)日：2015-02-12

申请号：US14494213

申请日：2014-09-23

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Hande ,  Arnab Das ,  Junyi Li ,  Sundeep Rangan ,  Rajiv Laroia

IPC: H04W4/06 ,  H04W24/10 ,  H04W72/08 ,  H04W36/20

CPC classification number: H04W16/08 ,  H04B17/24 ,  H04B17/382 ,  H04W4/06 ,  H04W16/06 ,  H04W24/10 ,  H04W36/20 ,  H04W52/143 ,  H04W52/343 ,  H04W52/40 ,  H04W72/082

Abstract: Methods and apparatus are described where loading information regarding loading conditions at a neighboring base station is received at a first base station and then communicated, e.g., broadcast, by the first base station to mobiles within the cell in which the first base station is located. Since the neighbor base station's loading information is being communicated to a mobile currently connected to the first base station via a reliable communications channel of the first base station, the mobile can be expected to be able to reliably recover loading factor information corresponding to not only the first base station but to the neighboring base station. By utilizing such loading factor information, the mobile can generate an improved uplink interference report. The first base station receives such interference reports from wireless terminals in its cell, facilitating efficient resource allocation and interference control.

Abstract translation: 描述了在第一基站处接收关于相邻基站处的负载条件的信息的装置，然后由第一基站传送（例如，广播）到第一基站所在的小区内的移动台。 由于相邻基站的载入信息通过第一基站的可靠通信信道被传送到当前连接到第一基站的移动台，所以可以期望移动台能够可靠地恢复与不仅仅是 第一个基站，但是到邻近的基站。 通过利用这种负载因子信息，移动台可以产生改进的上行链路干扰报告。 第一基站从其小区中的无线终端接收到这种干扰报告，有利于高效的资源分配和干扰控制。

公开(公告)号：US20150036577A1

公开(公告)日：2015-02-05

申请号：US14518692

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

Inventor： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

IPC: H04W52/26 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W72/1242 ,  H04W28/22 ,  H04W48/08 ,  H04W52/16 ,  H04W52/18 ,  H04W52/267 ,  H04W72/0473 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

Abstract: Methods and apparatus related to peer to peer communication networks are described. Embodiments directed to methods and apparatus for establishing traffic data transmission rates and/or transmission power levels between wireless terminals is described. Embodiments direct to methods and apparatus of making decisions whether or not to transmit as a function of the received power of the received response signals are also described. Transmission of pilot signals after granting of a transmission request and a decision to transmit traffic data has been made occurs in some embodiments. Rate information to be used in determining a traffic rate may be received in response to the pilot signal from a peer to peer (P2P) device.

公开(公告)号：US20130122947A1

公开(公告)日：2013-05-16

申请号：US13733762

申请日：2013-01-03

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajiv Laroia

IPC: H04W52/24

CPC classification number: H04W52/243 ,  H04W52/265 ,  H04W52/281 ,  H04W52/30 ,  H04W52/367 ,  H04W52/383 ,  H04W76/15

Abstract: Methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage are described. A base station transmits a signal to be used by a peer to peer wireless terminal in controlling its peer to peer transmit power level. The peer to peer wireless terminal receives and measures the strength of the base station signal. The measurement information is used in determining whether or not peer to peer signal transmission is permitted and/or in determining a peer to peer transmission power level. Current service level information and/or encoded information, e.g., an interference level indicator value, conveyed by the received base station signal are, in various embodiments, also utilized in determining a peer to peer transmission power level.

Abstract translation: 描述了与广域网（WAN）上行带宽共享的对等通信信令使用相关的方法和设备。 基站发送对等无线终端要控制其对等发射功率电平的信号。 对等无线终端接收并测量基站信号的强度。 测量信息用于确定是否允许对等信号传输和/或确定对等传输功率电平。 在各种实施例中，由接收的基站信号传送的当前业务级信息和/或编码信息，例如干扰级指示符值，也用于确定对等传输功率级别。