公开(公告)号：US20180062809A1

公开(公告)日：2018-03-01

申请号：US15676762

申请日：2017-08-14

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Kapil Gulati ,  Zhibin Wu

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04J13/0055 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0072 ,  H04L5/0051 ,  H04L27/2602 ,  H04L27/2613 ,  H04W72/0406 ,  H04W92/18

Abstract: A transmitting UE may in a device-to-device (D2D) communication may identify a demodulation reference signal (DMRS) sequence for a D2D transmission based at least in part on a subset of bits of a sidelink control information (SCI) transmission. The subset of bits of the SCI transmission may be selected such that the bits have sufficient variability to reduce the likelihood that multiple UEs may use the same DMRS sequence. The subset of bits of the SCI transmission may be all or a portion of a cyclic redundancy check (CRC) for the SCI.

公开(公告)号：US09706482B2

公开(公告)日：2017-07-11

申请号：US14281805

申请日：2014-05-19

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Peter Gaal ,  Saurabha Rangrao Tavildar ,  Junyi Li ,  Georgios Tsirtsis

IPC: H04W48/16 ,  H04W56/00 ,  H04W72/04 ,  H04W48/12 ,  H04W8/00

CPC classification number: H04W48/16 ,  H04W8/005 ,  H04W48/12 ,  H04W56/001 ,  H04W72/042 ,  H04W72/0446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives information from a serving base station and at least one neighboring base station. The information indicates a time allocation of discovery resources allocated by each of the serving base station and the at least one neighboring base station for performing direct discovery. The apparatus further determines a subframe timing of the serving base station and the at least one neighboring base station, and performs direct discovery using the time allocation of the discovery resources allocated by each of the serving base station and the at least one neighboring base station based on a determined subframe timing of the serving base station or a neighboring base station corresponding to the discovery resources.

公开(公告)号：US09609680B2

公开(公告)日：2017-03-28

申请号：US14608819

申请日：2015-01-29

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Saurabha Rangrao Tavildar ,  Shailesh Patil ,  Kapil Gulati ,  Haris Zisimopoulos

IPC: H04M11/00 ,  H04W76/02 ,  H04W4/08 ,  H04W36/00 ,  H04W72/04 ,  H04W88/10 ,  H04W76/00 ,  H04L29/06 ,  H04W12/08

CPC classification number: H04W76/14 ,  H04L63/104 ,  H04W4/06 ,  H04W4/08 ,  H04W12/06 ,  H04W12/08 ,  H04W36/00 ,  H04W36/0016 ,  H04W72/04 ,  H04W72/0406 ,  H04W76/40 ,  H04W88/10

Abstract: Methods, systems, and devices are described for device-to-device (D2D) wireless communication. A device may transmit an initiation message to a base station indicating that the device desires to initiate a D2D communication session. The device may then receive a response from the base station that includes parameters for configuration of the D2D session. When it has data to send to another device, the device may transmit buffer status report (BSR) to the base station. The base station may respond with a grant of D2D scheduling assignment (SA) configured according to the previously sent parameters. For example, the message may be scrambled with a D2D temporary identity sequence. In some cases, the device may transmit a group identification (ID) code to the base station, and the group ID may be associated with an index, so an SA for that group can be reference by index.

公开(公告)号：US20170034685A1

公开(公告)日：2017-02-02

申请号：US15194428

申请日：2016-06-27

Applicant: QUALCOMM Incorporated

Inventor： Libin Jiang ,  Wei Guan ,  Shailesh Patil

IPC: H04W8/00 ,  H04W74/08 ,  H04L27/26 ,  H04W76/02 ,  H04W72/04

CPC classification number: H04W8/005 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0087 ,  H04L27/0006 ,  H04L27/2601 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0808 ,  H04W74/0816 ,  H04W76/14

Abstract: Described herein are methods, systems, and apparatus for performing device-to-device (D2D) discovery in an unlicensed band. In one example, a method for wireless communication is described that includes identifying a resource pool for D2D discovery in an unlicensed radio frequency spectrum band and selecting a set of resource blocks in the identified resource pool. The method may also include performing a channel occupancy check for the channel in the selected set of resource blocks. The method further includes transmitting a D2D discovery message based at least in part on the channel occupancy check, the D2D discovery message transmitted over the selected set of resource blocks in the unlicensed radio frequency spectrum band.

Abstract translation: 这里描述了用于在非许可频带中执行设备到设备（D2D）发现的方法，系统和装置。 在一个示例中，描述了一种用于无线通信的方法，其包括在未经许可的射频频带中识别用于D2D发现的资源池，并且在所识别的资源池中选择一组资源块。 该方法还可以包括对所选择的资源块集合中的信道执行信道占用检查。 所述方法还包括至少部分地基于信道占用检查来发送D2D发现消息，所述D2D发现消息是通过所述非许可射频频带中所选择的一组资源块发送的所述D2D发现消息。

公开(公告)号：US09532301B2

公开(公告)日：2016-12-27

申请号：US14038735

申请日：2013-09-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Bilal Sadiq

IPC: H04L12/28 ,  H04W48/14 ,  H04W48/10 ,  H04W4/00 ,  H04W8/00

CPC classification number: H04W48/14 ,  H04W4/80 ,  H04W8/005 ,  H04W48/10

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one configuration, the apparatus sends a transmission requesting a peer discovery signal and indicating whether the transmission includes a unicast request or a multicast request. In addition, the apparatus receives at least one peer discovery signal response based on the transmission. In another configuration, the apparatus receives a transmission requesting a peer discovery signal and indicating whether the transmission includes a unicast request or a multicast request. In addition, the apparatus sends a peer discovery signal response in response to the received transmission and on resources determined based on the indication whether the transmission includes a unicast request or a multicast request.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 在一种配置中，设备发送请求对等体发现信号的传输，并指示传输是否包括单播请求或组播请求。 此外，该装置基于该传输接收至少一个对等体发现信号响应。 在另一配置中，设备接收请求对等体发现信号的传输，并指示传输是否包括单播请求或组播请求。 此外，该设备响应于所接收的传输和基于指示传输是否包括单播请求或多播请求而确定的资源发送对等体发现信号响应。

公开(公告)号：US20160286471A1

公开(公告)日：2016-09-29

申请号：US15061092

申请日：2016-03-04

Applicant: QUALCOMM Incorporated

Inventor： Haris Zisimopoulos ,  Hong Cheng ,  Sudhir Kumar Baghel ,  Michaela Vanderveen ,  Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Kapil Gulati ,  Bilal Sadiq

IPC: H04W48/16 ,  H04W8/00 ,  H04L12/18

CPC classification number: H04W48/16 ,  H04L12/185 ,  H04W4/06 ,  H04W8/005 ,  H04W24/10 ,  H04W48/08 ,  H04W76/14 ,  H04W76/40 ,  H04W88/04

Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes configuring a relay selection rule; receiving at least one discovery message from each of a plurality of proximity services (ProSe) relay candidates providing access to a network; evaluating the received discovery messages with respect to the relay selection rule; selecting a first ProSe relay candidate from the plurality of ProSe relay candidates based at least in part on the evaluating; and connecting to the network via the first ProSe relay candidate. A method for wireless communication at a ProSe relay candidate includes receiving, from a network, a ProSe Relay Indication (PRI); broadcasting at least one discovery message that includes the PRI; and receiving a relay connection request from a UE based at least in part on a compliance of the at least one discovery message with a relay selection rule of the UE.

Abstract translation: 技术描述为无线通信。 一种用户设备（UE）的无线通信方法包括：配置中继选择规则; 从多个邻近服务（ProSe）中的每一个接收提供对网络的访问的中继候选者的至少一个发现消息; 评估所接收的关于中继选择规则的发现消息; 至少部分地基于评估从多个ProSe中继候选中选择第一ProSe中继候选者; 并通过第一个ProSe中继候选者连接到网络。 ProSe中继候选者的无线通信方法包括从网络接收ProSe中继指示（PRI）; 广播包含PRI的至少一个发现消息; 以及至少部分地基于所述至少一个发现消息的符合性与所述UE的中继选择规则从UE接收中继连接请求。

公开(公告)号：US20160262034A1

公开(公告)日：2016-09-08

申请号：US15042348

申请日：2016-02-12

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Sudhir Kumar Baghel ,  Saurabha Rangrao Tavildar ,  Shailesh Patil

IPC: H04W24/08 ,  H04W4/00

CPC classification number: H04W24/08 ,  H04B17/29 ,  H04W4/70

Abstract: Improved methods, systems, or apparatuses for UE equipment testing for D2D enabled UEs may include determining performance metrics based on one or more of received transport blocks (TBs) or received service data units (SDUs) from the received one or more data channels on a per channel basis, and reporting the determined performance metric(s) on a per channel basis. In some examples, the performance metrics may include a count of a number of TBs or SDUs successfully received at a channel.

Abstract translation: 改进的用于启用D2D的UE的UE设备测试的方法，系统或装置可以包括基于接收到的一个或多个数据信道的接收的传输块（TB）或接收到的服务数据单元（SDU）中的一个或多个确定性能度量 并且基于每个信道报告所确定的性能度量。 在一些示例中，性能度量可以包括在信道处成功接收的多个TB或SDU的计数。

公开(公告)号：US20150208332A1

公开(公告)日：2015-07-23

申请号：US14556996

申请日：2014-12-01

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Georgios Tsirtsis

IPC: H04W48/16 ,  H04W36/00 ,  H04W76/02

CPC classification number: H04W48/16 ,  H04W8/005 ,  H04W36/0061 ,  H04W36/14 ,  H04W76/14

Abstract: A user device may receive one or more parameters from a base station to facilitate device-to-device (D2D) discovery. One of the received parameters is a discovery period parameter, which identifies a discovery period in which discovery resources are available for D2D discovery. Once the user device has received the parameters, the user device may use the parameters to participate in D2D discovery.

Abstract translation: 用户设备可以从基站接收一个或多个参数以促进设备到设备（D2D）发现。 所接收的参数之一是发现周期参数，其识别发现资源可用于D2D发现的发现周期。 一旦用户设备已经接收到参数，用户设备可以使用这些参数来参与D2D发现。

公开(公告)号：US20150023185A1

公开(公告)日：2015-01-22

申请号：US13947989

申请日：2013-07-22

Applicant: QUALCOMM Incorporated

Inventor： Shreeshankar Bodas ,  Kapil Gulati ,  Shailesh Patil ,  Saurabha R. Tavildar

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W24/08 ,  H04L1/1692 ,  H04L1/1825 ,  H04L5/006 ,  H04W52/245 ,  H04W52/281 ,  H04W52/383 ,  H04W52/48 ,  H04W72/0446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving packet communication in a broadcast D2D communication system. In an example, a communications device is equipped to receive a first packet during a first timeslot from a broadcast transmitter, measure a power level of a NACK received during the first timeslot, receive the first packet during a second timeslot, and determine whether to transmit the first packet during the second timeslot based on the measured power level of the NACK. In such an aspect in which the communications device determines that the measured power level of the NACK is above a threshold power level, the communications device may act as a relay and transmit the first packet during the second timeslot.

Abstract translation: 结合改善广播D2D通信系统中的分组通信来提供用于无线通信的方法，装置和计算机程序产品。 在一个示例中，通信设备被配备为在广播发射机的第一时隙期间接收第一分组，测量在第一时隙期间接收到的NACK的功率电平，在第二时隙期间接收第一分组，并且确定是否发送 基于所测量的NACK的功率电平在第二时隙期间的第一分组。 在通信设备确定所测量的NACK的功率电平高于阈值功率电平的这种方面中，通信设备可以充当中继器，并且在第二时隙期间发送第一分组。

公开(公告)号：US20140301326A1

公开(公告)日：2014-10-09

申请号：US14311627

申请日：2014-06-23

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas Joseph Richardson

IPC: H04W28/04 ,  H04W4/00

CPC classification number: H04W28/046 ,  H04W4/70 ,  H04W74/085 ,  H04W74/0858 ,  H04W76/11 ,  H04W76/14

Abstract: Various methods and apparatus are directed to collision detection and/or avoidance regarding peer to peer connection identifiers. A wireless communications device broadcasts a signal indicating its acquired connection identifier in one of two alternative blocks. A base station monitors peer to peer signaling in its coverage area and tracks the usage of peer to peer connection identifiers by pairs of devices. The base station detects when multiple pairs of devices are using the same peer to peer connection identifier. The base station provides assistance to the peer to peer network to avoid a collision or facilitate rapid collision detection by the peer to peer devices. In one approach the base station sends an instruction for a connection to switch its connection identifier. In another approach the base station sends a connection a message to bias its selection as to which of the two alternative blocks to use for transmission.

Abstract translation: 各种方法和装置针对关于对等连接标识符的冲突检测和/或回避。 无线通信设备在两个替代块之一中广播指示其获取的连接标识符的信号。 基站监视其覆盖区域中的对等信令，并通过成对的设备跟踪对等连接标识符的使用。 基站检测多对设备何时使用相同的对等连接标识符。 基站向对等网络提供协助以避免冲突或促进对等设备的快速冲突检测。 在一种方法中，基站发送用于连接的指令来切换其连接标识符。 在另一种方法中，基站向连接发送消息以偏移其对于要用于传输的两个替代块中的哪一个的选择。