公开(公告)号：US11251915B2

公开(公告)日：2022-02-15

申请号：US15979049

申请日：2018-05-14

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal ,  Seyong Park ,  Hao Xu

IPC: H04L5/00 ,  H04W52/34 ,  H04W52/28 ,  H04W52/14 ,  H04W52/24 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W52/06 ,  H04W52/42 ,  H04W52/26

Abstract: Various aspects described herein relate to techniques for uplink transmissions in wireless communication systems. In an aspect, a method includes receiving, by a user equipment (UE), hopping information for two consecutive symbols, generating, by the UE, a first symbol of the two consecutive symbols using a format, generating, by the UE, a second symbol of the two consecutive symbols based on the format and the hopping information, and transmitting, by the UE, the two consecutive symbols in an uplink signal.

公开(公告)号：US11239966B2

公开(公告)日：2022-02-01

申请号：US16747473

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Gokul Sridharan ,  Peter Gaal ,  Xiao Feng Wang ,  Wanshi Chen ,  Alexandros Manolakos

IPC: H04L5/00 ,  H04W72/12 ,  H04L27/18

Abstract: Wireless communications devices and methods are adapted to facilitate DMRS sequence grouping. In one example, information is obtained for a transmission scheduled with pi/2 BPSK modulation, the transmission including two or more symbols scheduled for a DMRS (DMRS symbols). Respective DMRS sequences may be identified for each of the DMRS symbols, where each DMRS sequence subsequent to another DMRS sequence is dependent on its immediately preceding DMRS sequence, and the transmission may be sent with the identified DMRS sequences in the two or more DMRS symbols. In one example, a first transmission may be sent to schedule a second transmission from another device with pi/2 BPSK modulation, where the second transmission includes two or more DMRS symbols. The scheduled second transmission may be received with at least one DMRS symbol including a DMRS sequence based on its immediately preceding DMRS sequence. Other aspects, embodiments, and features are also included.

公开(公告)号：US11218996B2

公开(公告)日：2022-01-04

申请号：US16370483

申请日：2019-03-29

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Wanshi Chen ,  Peter Gaal

IPC: H04W72/04 ,  H04B1/713

Abstract: Certain aspects of the present disclosure provide techniques for physical uplink control channel (PUCCH) before radio resource control connection setup completion. A by a base station (BS) generally includes transmitting a system information block, to a user equipment (UE), containing system information indicating a resource set of a plurality of predefined resource sets, each containing a plurality of resources. The BS transmits downlink control information on physical downlink control channel associated with a control channel element (CCE) index, to the UE, containing resource indicator (RI) bits to indicate a resource of the plurality of resources of the indicated resource set available for the UE to use for transmitting uplink control information (UCI) in a PUCCH. The BS monitors the indicated resource for the PUCCH transmission. A UE determines the resource based on the SI, RI bits, and CCE index, and transmits UCI in the PUCCH on the determined resource.

公开(公告)号：US20210385030A1

公开(公告)日：2021-12-09

申请号：US17338592

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Elshafie ,  Yi Huang ,  Hwan Joon Kwon

IPC: H04L1/18 ,  H04L5/00 ,  H04W80/02 ,  H04L1/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. An example method of wireless communication at a user equipment includes receiving a data transmission for each of a plurality of component carriers (CCs) over a wireless channel from a base station, wherein each data transmission is associated with a number of code block groups (CBGs). The method further includes identifying a feedback protocol to apply to the plurality of CCs and selecting a subset of the plurality of CCs for which to report feedback information for the CBGs based at least in part on the feedback protocol. The method may also include generating the feedback information based at least in part on the subset of the plurality of CCs and the feedback protocol and transmitting a feedback message that indicates the feedback information for the subset of the plurality of CCs of the wireless channel to the base station.

公开(公告)号：US11191033B2

公开(公告)日：2021-11-30

申请号：US16530744

申请日：2019-08-02

Applicant: QUALCOMM Incorporated

Inventor： Gokul Sridharan ,  Yi Huang ,  Xiao Feng Wang ,  Peter Gaal ,  Jay Kumar Sundararajan ,  Wanshi Chen ,  Wei Yang

IPC: H04W52/16 ,  H04B7/06 ,  H04W72/04 ,  H04W52/36

Abstract: Certain aspects of the present disclosure provide techniques for scaling transmission power across transmit chains for physical uplink shared channel (PUSCH) transmissions. In some cases, a UE may determine a transmit power budget, receiving signaling indicating how to allocate the transmit power budget across transmit chains for a physical uplink shared channel (PUSCH) transmission, allocate the transmit power budget across transmit chains for a physical uplink shared channel (PUSCH) transmission, and transmitting the PUSCH using the transmit chains according to the determined transmit power allocation.

公开(公告)号：US11147065B2

公开(公告)日：2021-10-12

申请号：US16252939

申请日：2019-01-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Yi Huang ,  Sanghoon Kim ,  Amir Aminzadeh Gohari ,  Peter Gaal ,  Wanshi Chen ,  Tingfang Ji ,  Sony Akkarakaran ,  Wei Yang

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04L1/00 ,  H04L5/00 ,  H04W76/28

Abstract: A wireless device may identify a set of resources reserved for feedback information (e.g., resource elements (REs) reserved for feedback such as acknowledgement (ACK) or negative ACK (NACK) information) within a transmission time interval (TTI). Feedback information may be mapped to the reserved set of resources (e.g., reserved REs). The wireless device may determine a set of unused reserved resources (e.g., a set of unused reserved REs) based on the number of feedback bits. The wireless device may then map other bits (e.g., zeros, known bits, pattern or sequence of bits, random bits, etc.) to the set of unused reserved REs, or boost transmission power of bits mapped around the unused reserved REs. In some cases, the number of reserved REs may be determined based on the number of feedback bits (e.g., the size of the ACK/NACK payload). The wireless device may then transmit the information to a base station.

公开(公告)号：US20210314203A1

公开(公告)日：2021-10-07

申请号：US17347192

申请日：2021-06-14

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Seyong Park ,  Gokul Sridharan ,  Peter Gaal ,  Alexandros Manolakos ,  Xiao Feng Wang ,  Tingfang Ji

IPC: H04L27/20 ,  H04L5/00 ,  H04L5/02 ,  H04L27/26 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A device (e.g., a base station or a user equipment (UE)) may identify a sequence length corresponding to a number of resource blocks, and select a modulation scheme based on the sequence length. The device may select, from a set of sequences associated with the modulation scheme, a sequence having the sequence length. In some examples, the set of sequences may include at least one of a set of time domain phase shift keying computer-generated sequences or a set of frequency domain phase shift keying computer-generated sequences. The device may generate a reference signal for a data transmission based on the sequence and transmit the reference signal within the number of resource blocks.

公开(公告)号：US11129182B2

公开(公告)日：2021-09-21

申请号：US16535927

申请日：2019-08-08

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Xiaoxia Zhang ,  Alexandros Manolakos

IPC: H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, multiple timing advances (TAs) may be configured for non-coherent joint transmission (NCJT) with respective transmit receive points (TRPs). For example, a NCJT mode may have multiple TAs semi-statically configured for the UE to follow for each TRP. In some cases, a TA index corresponding to a TA for a TRP may be added as a field to a sounding reference signal (SRS) resource definition (e.g., SRS resource configuration). Additionally or alternatively, the TA index may be determined from an SRS index transmitted by the TRP, where the TA index corresponds to a TA for uplink information in a physical uplink shared channel. Additionally or alternatively, the TA index may be included as a field in a physical uplink control channel (PUCCH) definition to indicate a TA for a corresponding PUCCH that the UE transmits to the TRP.

公开(公告)号：US20210243786A1

公开(公告)日：2021-08-05

申请号：US17155693

申请日：2021-01-22

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Yi Huang

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

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify that an uplink data transmission scheduled for transmission by the UE in a first transmission time interval overlaps with multiple uplink control transmissions also scheduled for transmission by the UE during corresponding second transmission time intervals that are shorter in duration than the first transmission time interval. The UE may determine that the multiple uplink control transmissions satisfy a scheduling constraint that is based at least in part on an uplink control transmission type of the multiple uplink control transmissions that overlap with the uplink data transmission. The UE may transmit the uplink data transmission and the multiple uplink control transmissions based at least in part on the scheduling constraint being satisfied.

公开(公告)号：US20210243779A1

公开(公告)日：2021-08-05

申请号：US17165743

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Peter Gaal ,  Wanshi Chen ,  Yi Huang

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14 ,  H04W72/10 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques may provide for handling of priority indications in scenarios where simultaneous physical uplink control channel (PUCCH)-physical uplink shared channel (PUSCH) is supported. For example, wireless communications systems may configure (e.g., via radio resource control (RRC) signaling) simultaneous PUCCH-PUSCH across two or more carriers, where piggybacking of feedback information on uplink shared channel transmission may be disabled. Further, a grant (e.g., downlink control information (DCI) scheduling a PUSCH transmission) may include a priority index field to indicate a priority associated with a transmission or resources scheduled by the grant. The described techniques may provide for efficient handling of priority indications associated with scheduled transmissions that overlap when simultaneous PUCCH-PUSCH is supported (e.g., techniques are provided for performing or dropping scheduled transmissions that overlap when simultaneous PUCCH-PUSCH is enabled based on any priority indications associated with the overlapping scheduled transmissions).