公开(公告)号：US20170332406A1

公开(公告)日：2017-11-16

申请号：US15371978

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Bilal Sadiq ,  Juergen Cezanne ,  Junyi Li

IPC: H04W74/08 ,  H04W52/34 ,  H04W52/24 ,  H04W52/36 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a number of beam directions that satisfy a transmission power condition. The UE may select a beam direction for a random access signal by choosing one of the beam directions that satisfies additional criteria, such as transmitting a random access message at the next opportunity. The transmission power may be selected based on a target receive power and a path loss for the selected beam. In some cases, if the sum of the path loss for a beam direction and the target receive power exceeds a maximum transmission power by more than a predetermined amount, the random access signal will not be transmitted using that beam. In some cases, if a response to the random access is not received, a different beam direction may be selected, the transmission power may be increased, or both.

公开(公告)号：US09814056B2

公开(公告)日：2017-11-07

申请号：US15048829

申请日：2016-02-19

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Junyi Li ,  Tingfang Ji ,  Naga Bhushan

IPC: H04W72/10 ,  H04W72/14 ,  H04W72/08 ,  H04W72/12 ,  H04W72/04 ,  H04W92/20

CPC classification number: H04W72/10 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1231 ,  H04W72/1242 ,  H04W72/1247 ,  H04W72/1268 ,  H04W72/1273 ,  H04W72/14 ,  H04W92/20

Abstract: Aspects of the present disclosure relate to methods and apparatus for interference management of wireless links with overriding link priority. The switched wireless link or connection may have lower or higher priority than the non-switched or scheduled link. The priority order between the links may be overridden in certain conditions.

公开(公告)号：US20170302352A1

公开(公告)日：2017-10-19

申请号：US15369069

申请日：2016-12-05

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Krishna Kiran Mukkavilli ,  Juergen Cezanne ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

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

CPC classification number: H04B7/0626 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/0228 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a phase noise correction reference signal (PC-RS) and a channel state information reference signal (CSI-RS) during a symbol period of a subframe. A user equipment (UE) may identify a first channel information using the PC-RS and the CSI-RS. The UE may transmit a channel information message to the base station that includes the first channel information. The first channel information may include a phase noise corrected channel measurement. The UE may the CSI-RS during the symbol period. Channel and phase noise estimates may be generated using a joint estimation based on the CSI-RS. The CSI-RS may be repeated periodically. In some cases, the UE may additionally or alternatively receive pilot tones that may include PC-RSs. The joint estimation may be further based on the pilot tones.

公开(公告)号：US09788328B2

公开(公告)日：2017-10-10

申请号：US13767757

申请日：2013-02-14

Applicant: QUALCOMM Incorporated

Inventor： Saurabha Rangrao Tavildar ,  Junyi Li ,  Bilal Sadiq ,  Qing He

IPC: H04W72/08 ,  H04W36/20 ,  H04W16/14 ,  H04W72/12 ,  H04W36/24 ,  H04W36/36 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04W16/14 ,  H04W36/20 ,  H04W36/24 ,  H04W36/36 ,  H04W72/042 ,  H04W72/1215 ,  H04W72/1226 ,  H04W72/1289

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus of a device-to-device (D2D) link receives from a base station an indication of an acceptable level of interference that the base station can tolerate on an uplink resource. The uplink resource is allocated to a user equipment (UE) for a wide area network (WAN) transmission. The acceptable level of interference is a level of interference that the base station can tolerate on the uplink resource while the base station receives the WAN transmission from the UE. The apparatus determines a level of interference to the UE's transmission at the base station and performs a D2D communication on the uplink resource allocated to the second UE for the WAN transmission if the determined level of interference is less than the acceptable level.

公开(公告)号：US20170289932A1

公开(公告)日：2017-10-05

申请号：US15336330

申请日：2016-10-27

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Bilal Sadiq

IPC: H04W56/00 ,  H04W74/08

CPC classification number: H04W56/001 ,  H04B7/0617 ,  H04B7/0686 ,  H04B7/0868 ,  H04W72/046 ,  H04W74/0833 ,  H04W74/0891

Abstract: Methods, systems, and devices for wireless communication are described. The method may include transmitting a first synchronization signal in a set of beam directions during a first symbol period of a synchronization subframe and transmitting a second synchronization signal in another set of beam directions during a second symbol period of the synchronization subframe. The second set of beam directions may be spatially interleaved with the first set of beam directions. Additionally, the method may include monitoring a first and second set of beam directions during a first and second symbol period of a random access subframe, respectively. Additionally, the method may include receiving, from a base station, first and second synchronization signals in a synchronization subframe, decoding the first synchronization signal, and transmitting an access request based at least in part on the decoded first synchronization signal.

公开(公告)号：US20170289910A1

公开(公告)日：2017-10-05

申请号：US15371795

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Tao Luo ,  Ashwin Sampath

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W52/0225 ,  H04B7/0617 ,  H04B7/0695 ,  H04W24/08 ,  H04W52/02 ,  H04W52/0216 ,  H04W56/0025 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1284 ,  H04W74/008 ,  H04W74/0833 ,  H04W76/28 ,  Y02D70/122 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24

Abstract: A wireless device configured for discontinuous reception (DRX) may and operating in a system that uses directional beamforming may identify a random access time period after awaking from a DRX sleep mode. The device may then transmit a scheduling request during the random access time period. In some cases, the device may transmit the scheduling request using frequency resources also associated with random access transmissions. In other cases, the device may utilize resources that are not associated with random access. The determination of which frequency resources are used may depend on the length of the DRX. That is, if a device has been in a sleep mode for a long time, it may use random access frequency resources that are associated with a more robust transmission configuration.

公开(公告)号：US20170245230A1

公开(公告)日：2017-08-24

申请号：US15224122

申请日：2016-07-29

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Juergen Cezanne ,  Junyi Li

IPC: H04W56/00 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W56/0005 ,  H04B7/0617 ,  H04B7/0695 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2613 ,  H04L27/2646 ,  H04L27/2666 ,  H04L27/2675 ,  H04W74/0833

Abstract: Various aspects of the disclosure relate to communicating random access information and uplink control information. In some aspects, a user equipment (UE) or other suitable apparatus transmits physical uplink control channel (PUCCH) information concurrently with random access channel (RACH) information transmitted by another UE or other apparatus. For example, the RACH access information and the PUCCH information may be frequency division multiplexed orthogonal tones. The disclosure relates in some aspects to using downlink-uplink (DL-UL) channel reciprocity to determine symbol and/or tone locations. For example, a base station or other suitable apparatus may initially sweep across different directions in different time slots to transmit directional primary synchronization signals (DPSSs). A UE or other suitable apparatus can then find an appropriate RACH symbol from its best DPSS beam index and transmit PUCCH information in those symbols.

公开(公告)号：US09735972B2

公开(公告)日：2017-08-15

申请号：US14675341

申请日：2015-03-31

Applicant: QUALCOMM Incorporated

Inventor： Jay Rodney Walton ,  Junyi Li ,  Parshanth Haridas Hande ,  John Wallace Nasielski ,  Michaela Vanderveen

IPC: H04W36/00 ,  H04L12/14 ,  H04W4/24 ,  H04M15/00 ,  H04W48/16 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10 ,  H04W84/04

CPC classification number: H04L12/1475 ,  H04M15/46 ,  H04M15/51 ,  H04M15/8038 ,  H04M15/8044 ,  H04M15/805 ,  H04M15/81 ,  H04M15/8228 ,  H04M15/8351 ,  H04W4/24 ,  H04W48/16 ,  H04W84/045 ,  H04W88/04 ,  H04W88/06 ,  H04W88/10

Abstract: Aspects of the present disclosure provide for yield management models for dynamically pricing access to wireless communication services. In some examples, access to a network is intermediated by a surrogate access point, which may act as a proxy or relay, expanding communication services to client devices that otherwise may lack a subscription, or may lack a suitable communication interface, to communicate directly with the wireless network. Here, the surrogate access point may be a subscriber device or user equipment. By utilizing the yield management model, the surrogate access point may receive compensation for sharing its connection to the network with nearby client devices. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20170223720A1

公开(公告)日：2017-08-03

申请号：US15192999

申请日：2016-06-24

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Hua Wang ,  Junyi Li

IPC: H04W72/10 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A first cell may receive a message indicating that a second cell has a priority transmission scheduled using a transmit time interval (TTI) that is shorter than a TTI used by the first cell. The first cell may limit, based on the message, a communication parameter associated with communications between the first cell and a user equipment (UE) during the scheduled priority transmission.

公开(公告)号：US09717110B1

公开(公告)日：2017-07-25

申请号：US15206031

申请日：2016-07-08

Applicant: QUALCOMM INCORPORATED

Inventor： Piyush Gupta ,  Junyi Li ,  Saurabha Tavildar

IPC: H04W28/02 ,  H04W52/02 ,  H04W76/02 ,  H04B3/36 ,  H04L12/751 ,  H04H20/38 ,  H04W72/04 ,  H04W4/00 ,  H04L12/933 ,  H04W88/02

CPC classification number: H04W76/025 ,  H04B3/36 ,  H04H20/38 ,  H04L45/026 ,  H04L49/1584 ,  H04W4/70 ,  H04W8/005 ,  H04W48/14 ,  H04W48/16 ,  H04W52/0274 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/14 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/26

Abstract: Systems and methods are disclosed for efficient signaling between devices. A leaf device initiates association with chirp signals to relay devices. Relay devices respond with keep alive signals. The leaf device selects a relay (from those that responded) and associates with it. Alternatively, selection of the relay may be offloaded to a base station. In another embodiment, an available relay device transmits a discovery broadcast to leaf devices. A leaf device responds with a chirp signal to the relay and association occurs. After association, the leaf device periodically sends a chirp signal and the relay responds with a keep alive signal. If either device fails to send its signal, link breakage is assumed. The leaf device reverts to uplink communication with a base station while searching for another relay. Downlink paging may be synchronized with the chirp/keep alive signaling. Other aspects, embodiments, and features are also claimed and described.