公开(公告)号：US20180069673A1

公开(公告)日：2018-03-08

申请号：US15811289

申请日：2017-11-13

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Pavan Kumar Vitthaladevuni ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0051

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal (SRS) to the base station. The base station characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. As part of applying the channel information, the base station forms the beam to the UE based on the uplink channel information obtained from the SRS. The UE may include an array of antennas, each UE transmitting a different SRS that the base station receives and uses to characterize the downlink. Multiple UEs (or a single UE with multiple antennas) transmit SRS at the same time and frequency allocation (non-orthogonal), but with each sending its own unique SRS. Further, multiple UEs (or a single UE with multiple antennas) may send their SRS at unique time/frequency allocations (orthogonal).

公开(公告)号：US09814040B2

公开(公告)日：2017-11-07

申请号：US14750719

申请日：2015-06-25

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Jing Jiang ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Joseph Binamira Soriaga ,  John Edward Smee

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L5/0055 ,  H04W72/042 ,  H04W72/0493

Abstract: Methods, systems, and devices for wireless communication are described. In some examples, a wireless system may use a staggered uplink/downlink (UL/DL) format in which the symbol periods of the downlink are offset from the symbol periods of the uplink. Thus, if a user equipment (UE) receives a transmission in a first symbol period, it may decode the transmission and transmit a response in a staggered symbol period (e.g., in a UL control channel symbol period beginning one half of a symbol period after the first symbol period). A base station may then receive the response and, if it is a negative acknowledgement (NACK), retransmit during the third symbol period following the first symbol period. In another example, thin control channels may be used to reduce the round trip time between receiving a transmission and a retransmission.

公开(公告)号：US20170272224A1

公开(公告)日：2017-09-21

申请号：US15070694

申请日：2016-03-15

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  John Edward Smee ,  Jamie Menjay Lin ,  Rotem Cooper ,  Michael Alexander Howard

IPC: H04L5/00

Abstract: Systems and methods are disclosed for minimizing latency between receipt of a NACK at a base station from a user equipment (UE) and retransmission of data to the UE. Time constraints for processing the ACK/NACK are relaxed so the base station can decode the ACK/NACK to determine whether a NACK has been received and then prepare for transmission of the appropriate data to the UE in the immediately following transmission time interval (TTI). These constraints are relaxed by separating download data indicator (DDI) from the PDCCH control data and delaying transmission of the DDI until decoding of the ACK/NACK.

公开(公告)号：US09763189B2

公开(公告)日：2017-09-12

申请号：US14793175

申请日：2015-07-07

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Joseph Patrick Burke ,  Stephen Jay Shellhammer ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04W56/00 ,  H04W52/02

CPC classification number: H04W52/0216 ,  H04W52/0293 ,  H04W56/001 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/22 ,  Y02D70/26

Abstract: Some aspects of the present disclosure provide for methods, apparatus, and computer software for low-power synchronization of wireless communication devices. In one example, an asynchronous code division multiple access (CDMA) channel may be utilized for uplink communication. By utilizing asynchronous CDMA on the uplink, synchronization requirements are relaxed relative to other forms of communication. Accordingly, a synchronization period after coming out of a sleep state can be short, reducing power consumption during re-synchronization. In another example, a low-power companion receiver, rather than the full-power WWAN receiver, may be utilized to acquire a sync signal while the device is in its sleep state. Once synchronism is achieved via the low-power companion receiver, the full-power radio may power up and perform communication with the network. By shifting the synchronization from the full-power radio to the low-power companion radio, power consumption during re-synchronization can be achieved.

公开(公告)号：US20170244451A1

公开(公告)日：2017-08-24

申请号：US15188502

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sundar Subramanian ,  Krishna Kiran Mukkavilli ,  Ashwin Sampath ,  Junyi Li

IPC: H04B7/04 ,  H04L7/04 ,  H04B17/336 ,  H04W16/28 ,  H04B7/06

CPC classification number: H04B7/0408 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0628 ,  H04B7/063 ,  H04B7/0632 ,  H04B17/336 ,  H04L7/04 ,  H04W16/28 ,  H04W72/046

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify two (or more) beamforming directions associated with simultaneous communications to a set of receivers. Each receiver may be associated with a different one of the two beamforming directions. The base station may schedule resources for simultaneous communications with the set of receivers based on the identified two beamforming directions. The base station may schedule simultaneous transmissions to the set of receivers using the scheduled resources.

公开(公告)号：US20170041119A1

公开(公告)日：2017-02-09

申请号：US15043395

申请日：2016-02-12

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Jing Jiang ,  Tingfang Ji ,  Jeremy Lin ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/14 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04L5/0028 ,  H04L5/1469 ,  H04W72/0413 ,  H04W72/042

Abstract: Aspects of the present disclosure provide a configurable bi-directional time division duplex (TDD) subframe structure. The configurable subframe structure includes a downlink control portion, an uplink control portion, an uplink data portion and a downlink data portion. A current subframe for communication between a scheduling entity and a set of one or more subordinate entities is produced by determining a desired ratio of uplink information to downlink information for the current subframe and configuring the configurable subframe structure with the desired ratio.

Abstract translation: 本公开的方面提供了可配置的双向时分双工（TDD）子帧结构。 可配置子帧结构包括下行链路控制部分，上行链路控制部分，上行链路数据部分和下行链路数据部分。 通过确定上行链路信息与当前子帧的下行链路信息的期望比例并且以期望的比率来配置可配置的子帧结构，来产生调度实体和一个或多个下属实体的集合之间的通信的当前子帧。

公开(公告)号：US20160352481A1

公开(公告)日：2016-12-01

申请号：US15161596

申请日：2016-05-23

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Naga Bhushan ,  Krishna Kiran Mukkavilli ,  John Edward Smee

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0446

Abstract: Adaptive signaling (e.g., pilot signaling, control signaling, or data signaling) is disclosed in which resources allocated to one or more symbols are allowed to vary to more closely match channel conditions and data latency requirements. In one embodiment, a method includes determining that low-latency data is available to transmit during a first transmission time interval (TTI) and informing a mobile station that the low-latency data will be transmitted during one slot reserved for a symbol in the first TTI. The low-latency data may be transmitted during the first time slot in the first TTI and the symbol (originally scheduled symbols) may be transmitted during a second time slot.

Abstract translation: 公开了自适应信令（例如，导频信令，控制信令或数据信令），其中分配给一个或多个符号的资源被允许变化以更接近地匹配信道条件和数据等待时间要求。 在一个实施例中，一种方法包括确定低等待时间数据可用于在第一传输时间间隔（TTI）期间传输，并通知移动台，在第一个传输时间间隔内为符号保留的一个时隙期间将传输低等待时间数据 TTI。 可以在第一TTI期间的第一时隙期间发送低延迟数据，并且可以在第二时隙期间发送符号（原始调度符号）。

公开(公告)号：US20160270115A1

公开(公告)日：2016-09-15

申请号：US14943796

申请日：2015-11-17

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Peter Gaal ,  John Edward Smee ,  Jing Jiang

IPC: H04W72/12 ,  H04L5/14

CPC classification number: H04W72/1289 ,  H04L1/00 ,  H04L1/1671 ,  H04L1/1854 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/1469 ,  H04W72/0446 ,  H04W76/00

Abstract: Aspects of the present disclosure provide a self-contained subframe structure for time division duplex (TDD) carriers. Information transmitted on a TDD carrier may be grouped into subframes, and each subframe can provide communications in both directions (e.g., uplink and downlink) to enable such communications without needing further information in another subframe. In one aspect of the disclosure, a single subframe may include scheduling information, data transmission corresponding to the scheduling information, and acknowledgment packets corresponding to the data transmission. Furthermore, the subframe may additionally include a header and/or a trailer to provide certain bi-directional communications functions.

Abstract translation: 本公开的方面提供了用于时分双工（TDD）载波的自包含子帧结构。 在TDD载波上发送的信息可以被分组为子帧，并且每个子帧可以在两个方向（例如，上行链路和下行链路）上提供通信，以实现这种通信，而不需要另一个子帧中的进一步的信息。 在本公开的一个方面，单个子帧可以包括调度信息，对应于调度信息的数据传输和对应于数据传输的确认分组。 此外，子帧可另外包括头部和/或尾部以提供某些双向通信功能。

公开(公告)号：US20160270103A1

公开(公告)日：2016-09-15

申请号：US14939966

申请日：2015-11-12

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  Chih Ping Li ,  John Edward Smee

IPC: H04W72/12 ,  H04L5/14

CPC classification number: H04W72/1242 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0064 ,  H04L5/1469 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/1278

Abstract: Various aspects of the present disclosure provide for enabling at least one opportunity to transmit mission critical (MiCr) data and at least one opportunity to receive MiCr data in a time division duplex (TDD) subframe during a single transmission time interval (TTI). The single TTI may be no greater than 500 microseconds. The TDD subframe may be a downlink (DL)-centric TDD subframe or an uplink (UL)-centric TDD subframe. How much of the TDD subframe is configured for the at least one opportunity to transmit the MiCr data and how much of the TDD subframe is configured for the at least one opportunity to receive the MiCr data may be adjusted based on one or more characteristics of the MiCr data. The MiCr data may have a low latency requirement, a high priority requirement, and/or a high reliability requirement. Various other aspects are provided throughout the present disclosure.

Abstract translation: 本公开的各个方面提供使得至少一个机会能够在单个传输时间间隔（TTI）期间传输任务关键（MiCr）数据和在时分双工（TDD））子帧中接收MiCr数据的至少一个机会。 单个TTI可以不大于500微秒。 TDD子帧可以是下行链路（DL）中心TDD子帧或上行链路（UL）中心TDD子帧。 多少TDD子帧被配置用于发送MiCr数据的至少一个机会以及为接收MiCr数据的至少一个机会配置多少TDD子帧可以基于一个或多个特征 MiCr数据。 MiCr数据可能具有低延迟要求，高优先级要求和/或高可靠性要求。 在本公开内容中提供了各种其它方面。

公开(公告)号：US20160270087A1

公开(公告)日：2016-09-15

申请号：US14866768

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04W72/08 ,  H04W72/04 ,  H04B7/06 ,  H04W16/28

CPC classification number: H04W72/082 ,  H04B7/0421 ,  H04B7/0602 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0671 ,  H04W16/28 ,  H04W72/0413 ,  H04W72/042

Abstract: Systems, devices, and methods associated with interference aware sounding reference signals are provided. A method for wireless communication includes receiving, at a wireless communication device in communication with a first base station, an interfering signal from a second base station (or other base stations); determining, at the wireless communication device, a spatial direction of the interfering signal; and transmitting, with the wireless communication device, a signal to the first base station based on the spatial direction of the interfering signal. Another method of wireless communication includes receiving, at a first base station, a signal from a wireless communication device, the signal based on a spatial direction of an interfering signal received by the wireless communication device from a second base station (or other base stations); transmitting, with the first base station, a downlink communication to the wireless communication device, the downlink communication beamformed in the spatial direction based on the signal received from the wireless communication device.

Abstract translation: 提供了与干扰感知探测参考信号相关联的系统，设备和方法。 一种用于无线通信的方法包括在与第一基站通信的无线通信设备处接收来自第二基站（或其他基站）的干扰信号; 在所述无线通信设备处确定所述干扰信号的空间方向; 以及基于所述干扰信号的空间方向，向所述无线通信设备发送到所述第一基站的信号。 另一种无线通信方法包括在第一基站从无线通信设备接收基于无线通信设备从第二基站（或其他基站）接收的干扰信号的空间方向的信号， ; 利用第一基站向无线通信设备发送下行链路通信，基于从无线通信设备接收的信号，在空间方向上形成下行链路通信波束。