公开(公告)号：US20180226989A1

公开(公告)日：2018-08-09

申请号：US15943624

申请日：2018-04-02

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Gabi Sarkis ,  Shrinivas Kudekar ,  Thomas Richardson ,  Vincent Loncke

IPC: H03M13/11 ,  H03M13/00

Abstract: Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing LDPC base graphs. Two or more LDPC base graphs may be maintained that are associated with different ranges of overlapping information block lengths. A particular LDPC base graph may be selected for an information block based on the information block length of the information block. Additional metrics that may be considered when selecting the LDPC base graph may include the code rate utilized to encode the information block and/or the lift size applied to each LDPC base graph to produce the information block length of the information block.

公开(公告)号：US20180205496A1

公开(公告)日：2018-07-19

申请号：US15870197

申请日：2018-01-12

Applicant: QUALCOMM Incorporated

Inventor： Shrinivas Kudekar ,  Gabi Sarkis ,  Thomas Richardson

IPC: H04L1/00

Abstract: Aspects of the disclosure relate to polar coding. A polar codeword may be generated by sorting a plurality of synthetic channels utilized for transmission of the polar codeword over an air interface in order of reliability utilizing a convex combination of the mutual information calculated for each synthetic channel based on an Additive White Gaussian Noise (AWGN) channel and the mutual information calculated for each synthetic channel based on a binary erasure channel. A polar codeword may further be generated by sorting the plurality of synthetic channels in order of reliability utilizing cumulative sums calculated for each synthetic channel. Each cumulative sum may be calculated from a binary representation of a position of the synthetic channel within the plurality of synthetic channels.

公开(公告)号：US20170156130A1

公开(公告)日：2017-06-01

申请号：US14954494

申请日：2015-11-30

Applicant: QUALCOMM Incorporated

Inventor： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas Richardson

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L67/104 ,  H04L67/12 ,  H04W72/1252 ,  H04W72/1263

Abstract: A method, a computer program product, and an apparatus are provided. In one configuration, the apparatus transmits a first broadcast signal including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus transmits a second broadcast signal in the unicast resource. In another configuration, the apparatus, which is a first wireless device, receives a first broadcast signal from a second wireless device including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus receives a first scheduling signal from the second wireless device in a scheduling resource. The first scheduling signal is for indicating a second intention to use the unicast resource for transmitting a second broadcast signal. Furthermore, the apparatus refrains from transmitting a second scheduling signal in the scheduling resource in response to the first scheduling signal.

公开(公告)号：US20170010342A1

公开(公告)日：2017-01-12

申请号：US15271961

申请日：2016-09-21

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Jovicic ,  Junyi Li ,  Cyril Measson ,  Thomas Richardson

IPC: G01S5/02 ,  H04W8/00 ,  G01S5/00 ,  H04W4/02

CPC classification number: G01S5/0289 ,  G01S1/042 ,  G01S5/0072 ,  G01S5/0221 ,  G01S5/0226 ,  G01S5/0242 ,  H04W4/029 ,  H04W8/005

Abstract: One or more bits are used in peer discovery signals to signal a device's ability and/or willingness to participate in a cooperative manner with regard to one or more mobile device location determination related operations. In some embodiments, the one or more bits are located at predetermined locations within a header portion of a peer discovery signal. Different bits, in some embodiments, are associated with different specific cooperative location determination related operations. The peer discovery signal is transmitted, e.g., broadcast, periodically or on some predetermined basis by a mobile wireless communications device. In this manner, a device listening to the peer discovery signals can determine other devices' willingness to perform particular location discovery related operations with very little signaling overhead.

公开(公告)号：US09510359B2

公开(公告)日：2016-11-29

申请号：US15013895

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W72/12 ,  H04W28/22 ,  H04W52/26 ,  H04W72/04 ,  H04W76/02 ,  H04W52/18 ,  H04W48/08 ,  H04W52/16 ,  H04W92/18

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：US20160157260A1

公开(公告)日：2016-06-02

申请号：US15013895

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W52/18

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：US20160044098A1

公开(公告)日：2016-02-11

申请号：US14887812

申请日：2015-10-20

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajiv Laroia ,  Saurabha Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Leonard Grokop

IPC: H04L29/08 ,  H04L12/18 ,  H04W56/00

CPC classification number: H04L67/1061 ,  H04J3/0638 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L12/18 ,  H04L67/1093 ,  H04W8/005 ,  H04W56/001 ,  H04W56/0015 ,  H04W84/18

Abstract: Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).

公开(公告)号：US09258788B2

公开(公告)日：2016-02-09

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: G08C17/00 ,  H04W52/26 ,  H04W28/22 ,  H04W72/04 ,  H04W76/02 ,  H04W48/08 ,  H04W52/16 ,  H04W72/12 ,  H04W92/18

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.

Abstract translation: 描述了与对等通信网络相关的方法和设备。 描述了用于在无线终端之间建立业务数据传输速率和/或传输功率电平的方法和装置的实施例。 还描述了根据接收到的响应信号的接收功率来决定是否发送的方法和装置的实施例。 在一些实施例中已经发生了在授予发送请求之后的导频信号的传输和传送业务数据的决定。 可以响应于来自对等（P2P）设备的导频信号来接收用于确定业务速率的速率信息。