公开(公告)号：US20210100027A1

公开(公告)日：2021-04-01

申请号：US17017324

申请日：2020-09-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Piyush GUPTA ,  Hua WANG

IPC: H04W74/00 ,  H04W74/08 ,  H04W74/02 ,  H04W8/00 ,  H04W40/24 ,  H04W76/14 ,  H04W52/36 ,  H04W76/27 ,  H04W80/02 ,  H04W72/04 ,  H04W56/00

Abstract: Some aspects described herein relate to receiving a configuration defining resources for transmitting a first message in a two-step random access procedure, wherein the first message includes a random access preamble and a payload, generating a beacon signal for transmitting as the first message, where the beacon signal includes one or more parameters to facilitate discovery by other UEs for pairing in sidelink communications, and transmitting, based on the configuration, the beacon signal as the first message over the resources.

公开(公告)号：US20210051717A1

公开(公告)日：2021-02-18

申请号：US16990724

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Yongbin WEI

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for reuse one channel access for new radio communications in unlicensed spectrum. A method that may be performed by a first base station (BS) includes occupying a bandwidth, based on a category 4 (CAT4) listen before talk (LBT) procedure on the bandwidth, wherein the CAT4 LBT procedure is based on a first contention window (CW); arranging a category 2 (CAT2) LBT occasion for the bandwidth during a channel occupancy time (COT) for the bandwidth; and receiving an indication that at least a second BS has occupied the bandwidth during the CAT2 LBT occasion.

公开(公告)号：US20210045096A1

公开(公告)日：2021-02-11

申请号：US16941294

申请日：2020-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Aleksandar DAMNJANOVIC ,  Jing SUN ,  Qingjiang TIAN ,  Yongbin WEI

IPC: H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide techniques for new radio (NR) communications in narrowband regions of unlicensed spectrum. A method that may be performed by a user equipment (UE) includes determining, using an energy detector (ED), that received energy in a first bandwidth (BW) is lower than a threshold; and transmitting, in response to determining that received energy in the first BW is lower than the threshold, a first uplink (UL) transmission to a base station (BS) in a second BW smaller than the first BW and contained within the first BW.

公开(公告)号：US20210037551A1

公开(公告)日：2021-02-04

申请号：US16922143

申请日：2020-07-07

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Kazuki TAKEDA ,  Xiaoxia ZHANG ,  Jing SUN ,  Peter GAAL

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W80/08 ,  H04L1/18

Abstract: This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing cross-carrier scheduling by a processor of a wireless device. In one aspect, a wireless device may determine that a scheduled cell is configured to be scheduled by a scheduling cell. The wireless device may receive downlink control information (DCI) from a scheduling cell. The wireless device may determine an association of the DCI and an index based on the received DCI. The wireless device may perform cross-carrier scheduling of communications with a first transmit-receive point (TRP) or a second TRP based on the DCI and the associated index.

公开(公告)号：US20210037501A1

公开(公告)日：2021-02-04

申请号：US16879254

申请日：2020-05-20

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Tanumay DATTA ,  Kapil BHATTAD ,  Ananta Narayanan THYAGARAJAN ,  Xiaoxia ZHANG ,  Pravjyot Singh DEOGUN

IPC: H04W72/02 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a control channel resource configuration associated with an unlicensed spectrum, wherein the control channel resource configuration is associated with an indication of whether a resource to be used for an uplink control channel in the unlicensed spectrum is a fixed resource, a floating resource, or an adaptive resource. The UE may identify the resource based at least in part on the control channel resource configuration. The UE may transmit uplink control information on the identified resource. Numerous other aspects are provided.

公开(公告)号：US20210022044A1

公开(公告)日：2021-01-21

申请号：US16927927

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing SUN ,  Tao LUO ,  Srinivas YERRAMALLI ,  Zhifei FAN ,  Mostafa KHOSHNEVISAN ,  Wanshi CHEN ,  Juan MONTOJO ,  Peter GAAL ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W28/20 ,  H04W72/04

Abstract: Aspects relate to implementing multiplexing with a single carrier waveform. In some examples, a total bandwidth may be divided into a plurality of bandwidth parts (BWPs), each including a plurality of tones. Each of the BWPs may further be divided into two or more interlaces, where each interlace includes a respective number of interleaved tones. A base station may assign each of a plurality of UEs a respective set of one or more interlaces within at least one BWP for multiplexing communication with the base station.

公开(公告)号：US20210014858A1

公开(公告)日：2021-01-14

申请号：US16915470

申请日：2020-06-29

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Jing SUN ,  Seyedkianoush HOSSEINI ,  Wei YANG ,  Peter GAAL ,  Wanshi CHEN

IPC: H04W72/04 ,  H04W72/14

Abstract: Aspects described herein relate to determining symbols over which to transmit repetitions for certain types of communications. A resource grant can include information for transmitting a number of repetitions over a collection of resources, such as a starting symbol over which to transmit communications, a number of symbols over which to transmit communications, and/or a nominal number of repetitions to transmit. Where time division multiplexing (TDM) communications are configured, a slot format indicator (SFI) can be semi-statically or dynamically configured and can indicate a communication direction of symbols within one or more slots as being uplink, downlink, or flexible. Thus, mapping uplink communications to the symbols may be based on additional considerations.

公开(公告)号：US20210006363A1

公开(公告)日：2021-01-07

申请号：US16948500

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Jing SUN ,  Xiaoxia ZHANG

IPC: H04L1/18 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00

Abstract: This disclosure provides systems, methods and apparatus for wireless communication. In one aspect, a multi-transmit-receive point (TRP) approach for hybrid automatic repeat request (HARQ) acknowledgment (ACK) feedback using counter downlink assignment indicators (DAIs) (cDAIs) and total DAIs (tDAIs) is provided. For example, some techniques and apparatuses described herein may provide a joint counting method in which cDAIs and tDAIs are implemented and tracked jointly between the TRPs of a multi-TRP group. This may be useful in the ideal backhaul scenario when the multi-TRP group is jointly scheduled, and may be more robust against errors than a separate counting method. Some techniques and apparatuses described herein may provide a separate counting method, in which cDAIs and tDAIs are implemented and tracked separately by the respective TRPs of a multi-TRP group.

公开(公告)号：US20200344791A1

公开(公告)日：2020-10-29

申请号：US16855347

申请日：2020-04-22

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Xiaoxia ZHANG ,  Mostafa KHOSHNEVISAN ,  Tao LUO ,  Jing SUN ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W72/12 ,  H04W72/04

Abstract: A configuration is disclosed to enable a UE to determine and/or prepare Rx beams prior to downlink reception in multi-TRP operation. The apparatus sends, to a first TRP, a report indicating a plurality of threshold scheduled offsets. Each threshold scheduled offset associated with a different number of TCI states. The apparatus receives, from the first TRP, DCI including a TCI and a time-offset. The TCI comprising at least one TCI state. Each TCI state indicating a Tx beam for a TRP of a set of TRPs. The set of TRPs including the first TRP. The apparatus determines at least one Rx beam based on at least one of the received TCI, the time-offset, or one or more of the plurality of threshold scheduled offsets. The apparatus receives, based on the received time-offset, a PDSCH from each TRP of the set of TRPs through the determined at least one Rx beam.

公开(公告)号：US20200344736A1

公开(公告)日：2020-10-29

申请号：US16929562

申请日：2020-07-15

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Piyush Gupta ,  Wanshi Chen ,  Heechoon Lee

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W72/14 ,  H04W72/12

Abstract: Aspects of the disclosure relate to communication systems, apparatus and methods which enable or support transmitting/receiving downlink control information (DCI) carrying a downlink grant or an uplink grant. A method includes detecting a reference length based on an effective length of a downlink (DL) grant DCI and an effective length of an uplink (UL) grant DCI and calculating a length difference based on the effective DL grant DCI length and the effective UL grant DCI length. A length of a padding field in the DL grant DCI and/or the UL grant DCI is set equal to the calculated length difference such that the lengths of the DL grant DCI and UL grant DCI are both equal to the reference length. Padding bits are inserted in the padding field of the DL grant DCI and/or the UL grant DCI. Thereafter, the DL grant DCI and/or the UL grant DCI is encoded and transmitted to a scheduled entity.