公开(公告)号：US10033505B2

公开(公告)日：2018-07-24

申请号：US14813404

申请日：2015-07-30

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/00

Abstract: Techniques are described for wireless communication. A first method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an interlace of a component carrier of an unlicensed radio frequency spectrum band. The interlace includes a plurality of non-contiguous concurrent resource blocks in the unlicensed radio frequency spectrum band, and at least two resource blocks in the interlace include different portions of the uplink control information. A second method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an uplink control channel of an unlicensed radio frequency spectrum band. Resources of the uplink control channel are divided into a plurality of discrete dimensions and the uplink control information of the wireless device is transmitted over a number of the discrete dimensions allocated to the uplink control information of the wireless device.

公开(公告)号：US20180167965A1

公开(公告)日：2018-06-14

申请号：US15839790

申请日：2017-12-12

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Hao Xu ,  Wanshi Chen ,  Peter Gaal ,  Wei Zeng

IPC: H04W72/12 ,  H04W72/04

Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support flexible symbol configurations for uplink channels. In one example a method includes performing transmitting first uplink information from a subordinate entity to a scheduling entity in a long burst portion of one or more slots, and transmitting second uplink information from the subordinate entity to the scheduling entity in a combination of long burst and short burst portions of the one or more slots. Each of the one or more slots includes a portion that carries a physical downlink control channel. The second uplink information is transmitted in a physical uplink control channel

公开(公告)号：US20180152964A1

公开(公告)日：2018-05-31

申请号：US15824989

申请日：2017-11-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Wanshi Chen

IPC: H04W74/00 ,  H04W72/04 ,  H04L7/10 ,  H04L27/26 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W74/006 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0092 ,  H04L7/10 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2605 ,  H04L27/2666 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1252 ,  H04W72/1273

Abstract: In a radio air interface, a mixed-numerology carrier is one that multiplexes orthogonal frequency division multiplexed (OFDM) waveforms that have different numerologies onto the same carrier. This disclosure provides for a sync signal (SS) enabling channel access for such a mixed-numerology carrier. In one example, a single SS, having a given numerology, supports channel access for a plurality of numerologies on the mixed-numerology carrier. In another example, a plurality of numerologies on the mixed-numerology carrier each has its own respective SS, and a single, common numerology is used for all SS's. In still another example, a plurality of numerologies on the mixed-numerology carrier each has its own respective SS, where each SS has the same numerology as the numerology for which the SS provides channel access.

公开(公告)号：US09985762B2

公开(公告)日：2018-05-29

申请号：US15633621

申请日：2017-06-26

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Michael Mao Wang

IPC: H04L5/00 ,  H04W72/04 ,  H04W56/00 ,  H04W8/00

CPC classification number: H04W8/005 ,  H04L5/0048 ,  H04L5/0073 ,  H04W56/001 ,  H04W56/0015 ,  H04W72/0446 ,  H04W72/082

Abstract: Base stations (such as small cells) may support active and dormant states. To facilitate state transitions, these cells may transmit discovery signals. The transmission design of both discovery signals and network synchronization signals from small cells should provide for regular periodicity, while supporting the benefit of transitioning between active and dormant states. Disclosed is a method, a computer program product, and an apparatus that determine a first reference signal for at least one of discovery or measurement, and a second reference signal for synchronization, where both the first reference signal and the second reference signal are based on a same type of reference signal.

公开(公告)号：US20180145810A1

公开(公告)日：2018-05-24

申请号：US15867479

申请日：2018-01-10

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Madhavan Srinivasan Vajapeyam ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Durga Prasad Malladi ,  Yongbin Wei

IPC: H04L5/00 ,  H04W56/00 ,  H04W74/00 ,  H04W72/08 ,  H04W72/04 ,  H04W76/12 ,  H04W24/08 ,  H04W76/27 ,  H04W88/08

Abstract: Techniques are described for wireless communication. A first method may include receiving at a user equipment (UE) over an unlicensed radio frequency spectrum band an indication of a time window associated with a transmission of a synchronization signal, and monitoring the unlicensed radio frequency spectrum band during the time window to receive a synchronization signal from a base station. A second method may include transmitting an indication of a time window associated with a transmission of a synchronization signal; performing a plurality of clear channel assessments (CCAs) on an unlicensed radio frequency spectrum band during the time window; and transmitting the synchronization signal over the unlicensed radio frequency spectrum band at a transmission time during the time window. The transmission time may be based at least in part on a result of at least one of the CCAs.

公开(公告)号：US09979450B2

公开(公告)日：2018-05-22

申请号：US15726188

申请日：2017-10-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Wanshi Chen ,  John Smee ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/04 ,  H04W28/18 ,  H04W72/12 ,  H04B7/02 ,  H04B7/0456 ,  H04L1/18 ,  H04L1/00 ,  H04B7/024 ,  H04L1/16 ,  H04L5/00

CPC classification number: H04B7/0456 ,  H04B7/024 ,  H04B7/0473 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0018 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1822 ,  H04L5/0023 ,  H04L5/0053 ,  H04W28/18 ,  H04W72/12

Abstract: A transmitter may initiate multiple-input multiple-output (MIMO) communications with a receiver in which a number of codewords used in MIMO transmissions may be selected to provide enhanced communications for a particular service that is associated with the MIMO transmission. In cases where a lower-latency service is identified, a MIMO transmission may be configured with one codeword transmitted over multiple spatial layers, which may provide lower processing latency at a receiver relative to processing of multiple codewords. In cases where a mobile broadband service is identified, a MIMO transmission configured with two (or more) codewords may be transmitted over multiple spatial layers, which may provide increased data throughput relative to a single codeword MIMO transmission. A codeblock size for a transmission also may be selected based at least in part on a service associated with the transmission.

公开(公告)号：US20180139772A1

公开(公告)日：2018-05-17

申请号：US15807952

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Wanshi Chen ,  Jing Sun ,  Shimman Arvind Patel ,  Seyedkianoush Hosseini

IPC: H04W72/12 ,  H04W52/02 ,  H04W72/14

Abstract: Described techniques provide for communications using multiple different transmission time intervals (TTIs) while in a configured DRX mode that allows efficient scheduling and allocation of resources, and relatively efficient power usage at a user equipment (UE). In some cases, two or more available TTIs for transmissions between a base station and a UE may be identified, and a DRX cycle configured based at least in part on the available TTIs. During monitoring periods of a configured DRX cycle for a first TTI, the UE may be configured to monitor for control signal transmissions associated with a different TTI duration. In some cases, resources for a shorter TTI may be allocated using a two-stage grant. In some cases, multiple component carriers may be configured for one or more different TTIs, and one component carrier may be used to cross schedule resources on other component carriers.

公开(公告)号：US20180139735A1

公开(公告)日：2018-05-17

申请号：US15812994

申请日：2017-11-14

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Yi Huang ,  Renqiu Wang ,  Seyong Park

IPC: H04W72/04 ,  H04L5/14 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04B7/212 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/14 ,  H04L5/1469 ,  H04W72/0446

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180132282A1

公开(公告)日：2018-05-10

申请号：US15648313

申请日：2017-07-12

Applicant: QUALCOMM Incorporated

Inventor： Hung LY ,  Hao Xu ,  Wanshi Chen ,  Tingfang Ji ,  Renqiu Wang ,  Peter Gaal ,  Amir Aminzadeh Gohari

IPC: H04W74/08 ,  H04W72/14 ,  H04L5/00

CPC classification number: H04W74/0833 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0091 ,  H04L27/0006 ,  H04W72/14 ,  H04W88/02 ,  H04W88/08

Abstract: A configurable new radio (NR) RACH procedure that may be executed by a UE and a base station is disclosed. A first message can be transmitted, in an inactive or idle state, a on a physical random access channel, where the first message includes a random access preamble. A second message can be received on a downlink channel in response to the first message, where the second message includes a temporary cell radio network temporary identifier and an uplink grant for the user equipment. A request can be transmitted on an uplink channel based on the uplink grant. A common search space of a downlink control channel can be monitored, such as for an acknowledgement message or a negative acknowledgement message corresponding to the request and identifiable based on the temporary cell radio network temporary identifier.

公开(公告)号：US20180124753A1

公开(公告)日：2018-05-03

申请号：US15593237

申请日：2017-05-11

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Jing Jiang ,  Wanshi Chen ,  Peter Pui Lok Ang ,  Tao Luo ,  Yang Yang ,  Jamie Menjay Lin

IPC: H04W72/04

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide piggyback downlink control information within the physical downlink shared channel (PDSCH). A first downlink control information portion may be transmitted within the physical downlink control channel (PDCCH) and may include information indicating a size of a second downlink control information portion transmitted within the PDSCH.