公开(公告)号：US20210314946A1

公开(公告)日：2021-10-07

申请号：US16838713

申请日：2020-04-02

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu ,  Hung Dinh Ly ,  June Namgoong

IPC: H04W72/04 ,  H04L5/14

Abstract: Bandwidth part (BWP) configurations supporting various communication approaches (e.g., full duplex and/or half duplex operations) are described. Full duplex (FD) frequency-based BWP configurations may, for example, be configured as a subset of defined BWP resources for supporting full duplex operation by base stations and/or user equipments (UEs). Usable bandwidth of a FD frequency-based BWP configuration may be selected from half duplex frequency-based BWPs in legacy BWPs. Bandwidths of usable BWPs for a FD frequency-based BWP configuration may be selected so as to be non-overlapping in frequency. Transition between configurations and modes (e.g., between full duplex frequency-based BWP configurations, between half duplex and full duplex modes, etc.) may be managed to avoid periods in which a communication device cannot perform any uplink or downlink transmissions due to switching between defined BWP configurations, or otherwise reduces BWP switching time. Other aspects and features are also claimed and described.

公开(公告)号：US20210298026A1

公开(公告)日：2021-09-23

申请号：US17185400

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Wanshi Chen ,  Muhammad Sayed Khairy Abdelghaffar ,  Huilin Xu

IPC: H04W72/04 ,  H04L5/14 ,  H04L1/00 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) and a base station may operate in a network that supports full-duplex communications. The UE may receive downlink communication and transmit uplink communication simultaneously and, in some cases, the uplink communication may cause self-interference that may adversely affect the reception of the downlink communication. The UE may receive, from the base station, an indication of the time or frequency resources over which the uplink communication overlaps in time with the downlink communication and may select a decoding technique to use for decoding the downlink transmission based on the indication. The UE may also receive, from the base station, a rate-matching configuration or puncturing information associated with the downlink transmission, which the UE may additionally use in selecting the decoding technique.

公开(公告)号：US20210258998A1

公开(公告)日：2021-08-19

申请号：US17157944

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Kazuki Takeda ,  Xiaoxia Zhang ,  Peter Gaal ,  Wanshi Chen ,  Alberto Rico Alvarino ,  Huilin Xu

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may provide hybrid automatic repeat request (HARQ) feedback for multiple physical channels (e.g., multiple physical downlink shared channels (PDSCH)) scheduled via multi-component carrier. The UE may monitor control channel occasions (e.g., physical downlink control channel (PDCCH) occasions), to receive wireless communications from a base station (e.g., a next-generation NodeBs (gNB)). For example, the UE may receive multiple downlink control information (DCI) messages that may schedule multiple PDSCH over different component carriers. The UE may identify one or multiple downlink assignment indices (DAI) in the received DCI messages. In some examples, the UE may generate one or more feedback bits of a HARQ feedback codebook (also referred to as an acknowledgement codebook). The one or more feedback bits include a same number of feedback bits for each downlink assignment index associated with each DCI message.

公开(公告)号：US20210258898A1

公开(公告)日：2021-08-19

申请号：US17171731

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Liangping Ma ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Huilin Xu ,  Jun Ma ,  Dan Zhang ,  Iyavb Issam Sakhnini

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

Abstract: Methods, systems, and devices for wireless communications are described. A satellite may determine one or more sets set of resources for conveying reference signals to a user terminal. In one example, the satellite may determine a set of resources that includes multiple resource groups each associated with a respective frequency range. In another example, the satellite may determine multiples sets of resources and each set of resources may include resources within respective frequency range. Upon determining the set(s) of resources, the satellite may transmit an indication of the set(s) of resources to a user terminal.

公开(公告)号：US20210250148A1

公开(公告)日：2021-08-12

申请号：US17249073

申请日：2021-02-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Huilin Xu ,  Naga Bhushan ,  Raghuraman Krishnamoorthi ,  Peter Pui Lok Ang ,  John Edward Smee

IPC: H04L5/00 ,  H04L27/26 ,  H04L25/02 ,  H04L12/801 ,  H04W72/04

Abstract: Systems and techniques are disclosed to reduce pilot overhead by providing common reference signals coded with cover codes that are orthogonal in time and frequency domains. Common reference signals that are coded by cover codes orthogonal in both domains can be de-spread in both the time and frequency domains for improved resolution and larger pull-in windows for both. Also disclosed is semi-uniform pilot spacing in both the frequency and time domains. In a time domain, a first pilot symbol pair is spaced by a first time interval from each other and a second pilot symbol pair is spaced by a second time interval from the first pair, the second interval being greater than the first. In a frequency domain, a first set of pilot symbols is densely placed in a selected frequency band and a second set of pilot symbols is sparsely placed surrounding and including the selected frequency band.

公开(公告)号：US20210235484A1

公开(公告)日：2021-07-29

申请号：US17158594

申请日：2021-01-26

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Huilin Xu ,  Wanshi Chen

IPC: H04W72/12

Abstract: Techniques and devices for wireless communications are described to support communication over multiple component carriers using configured resources. A base station may identify a resource configuration for one or more sets of configured resources for communication with a user equipment (UE) and may indicate the resource configuration to the UE. The base station may transmit a downlink control message to the UE that includes a field to indicate one or more sets of resources that are to be activated or deactivated. The UE may receive the downlink control message and, based on the downlink control message, may identify the one or more indicated sets of resources. The UE may determine, based on the downlink control message, whether the one or more sets of resources is activated or deactivated. The UE and the base station may communicate based on the one or more activated or deactivated sets of resources.

公开(公告)号：US20210144577A1

公开(公告)日：2021-05-13

申请号：US17152655

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Peter Gaal ,  Umesh Phuyal ,  Huilin Xu ,  Masato Michael Kitazoe ,  Tom Chin

IPC: H04W24/10 ,  H04W76/28 ,  H04B17/336 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.

公开(公告)号：US10979927B2

公开(公告)日：2021-04-13

申请号：US16801070

申请日：2020-02-25

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Peter Gaal ,  Aamod Khandekar ,  Alexei Yurievitch Gorokhov ,  Peter Pui Lok Ang

IPC: H04W24/10 ,  H04L25/02 ,  H04W76/28 ,  H04W56/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station (BS) may configure a UE to transmit a cross link interference reference signal (CLI-RS) using a bandwidth and frequency similar to those used for a synchronization signal. In another aspect, a BS may may configure a UE to measure a cross link interference reference signal (CLI-RS) transmitted using a bandwidth and frequency similar to those used for a synchronization signal. In other aspects, a base station may transmit, to a UE, an instruction to transmit or measure a CLI-RS. Numerous other aspects are provided.

公开(公告)号：US10958369B2

公开(公告)日：2021-03-23

申请号：US16882111

申请日：2020-05-22

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Huilin Xu ,  Heechoon Lee

IPC: H04J11/00 ,  H04W24/10 ,  H04W8/26 ,  H04W72/04 ,  H04L25/02 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. In some cases, due to blind decoding and channel estimation (CE) limits, one or more user equipment (UE) specific search sets may be pruned for blind decoding and/or CE purposes. For instance, after hashing a set of common decoding candidates to control channel elements (CCEs) within the control region, the UE specific search sets may be pruned so as to conform to the blind decode limitation, since a common search space has already occupied a portion of the total blind decode limit. Following pruning, the UE may hash the sets of UE-specific decoding candidates associated with the one or more UE specific search sets to CCEs within the control region. The UE may further prune UE specific search sets, based on CE limits, while reusing CE for overlapping hashed locations.

公开(公告)号：US10924959B2

公开(公告)日：2021-02-16

申请号：US16802433

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Peter Gaal ,  Umesh Phuyal ,  Huilin Xu ,  Masato Kitazoe ,  Tom Chin

IPC: H04L12/28 ,  H04W24/10 ,  H04W76/28 ,  H04B17/336 ,  H04B17/318 ,  H04J1/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a base station a measurement configuration signal comprising a measurement resource configuration associated with a cross-link interference signal strength measurement. The UE may perform the cross-link interference signal strength measurement for one or more UEs associated with one or more intra-frequency neighboring cells according to the measurement resource configuration, wherein the cross-link interference signal strength measurement is performed during an intra-frequency measurement gap. The UE may transmit a report of the cross-link interference signal strength measurement to the base station.