公开(公告)号：US20200314601A1

公开(公告)日：2020-10-01

申请号：US16830159

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Raju Hormis ,  Junyi Li ,  Navid Abedini ,  Juergen Cezanne ,  Ozge Koymen

IPC: H04W4/06 ,  H04B7/06 ,  H04W16/28 ,  H04B7/155

Abstract: Methods, systems, and devices for wireless communications are described. A wireless repeater may receive a unicast transmission and may relay the unicast transmission as a multicast transmission to a set of user equipments (UEs). Transmitting the multicast transmission may involve retransmitting the unicast transmission or a signal derived from the unicast transmission in each of a set of beamforming directions. The multicast transmission may be transmitted over multiple antenna arrays or a single antenna array associated with a Butler matrix. Additionally or alternatively, the wireless repeater may receive transmissions from multiple UEs; may form an aggregated signal associated with the received transmissions; and may transmit a unicast transmission associated with the aggregated signal, such as to a base station. The multiple UE transmissions may be received over multiple antenna arrays or over a single antenna array associated with a Butler matrix.

公开(公告)号：US10750476B2

公开(公告)日：2020-08-18

申请号：US16027050

申请日：2018-07-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Navid Abedini ,  Sundar Subramanian

IPC: H04W72/04 ,  H04W36/00 ,  H04W56/00 ,  H04W74/08 ,  H04W48/12

Abstract: Certain aspects of the present disclosure provide techniques for use of SS transmitted using a UE-specific configuration of time-frequency resources. A BS may assign at least one UE-specific configuration, wherein the UE-specific configuration comprises an allocation of resources for a UE-specific SS for mobility management purposes. The BS may communicate with the UE based, at least in part, on the UE-specific configuration. A UE may correspondingly receive the UE-specific configuration and communicate with a BS based, at least in part, on the configuration.

公开(公告)号：US10742287B2

公开(公告)日：2020-08-11

申请号：US16189503

申请日：2018-11-13

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Navid Abedini ,  Junyi Li ,  Karl Georg Hampel ,  Juergen Cezanne ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Jianghong Luo

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04W64/00

Abstract: Methods, systems, and devices for updating beam-based communications are described. A base station may configure a user equipment (UE) with a set of beam management configurations, which may be used to modify (e.g., dynamically or periodically) beam-based communications. For example, the base station may indicate a beam configuration for utilization by the UE and the UE may switch to the indicated beam configuration or update a currently used beam configuration based on the indication. In another example, a set of beam configurations may be sequentially ordered, and the base station may indicate to the UE to use the next beam configuration in the sequence of beam configurations. The update to the beam configuration may be triggered based on a distance change (e.g., UE and base station getting closer or farther apart) or a reference signal measurement between the UE and the base station, among other factors.

公开(公告)号：US20200236675A1

公开(公告)日：2020-07-23

申请号：US16840040

申请日：2020-04-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Sundar Subramanian ,  Navid Abedini ,  Junyi Li ,  Juergen Cezanne ,  Hung Dinh Ly ,  Joseph Binamira Soriaga ,  Tingfang Ji

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

Abstract: Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for different tone spacing schemes for different channels. Methods, systems, and devices also provide for different tone spacing schemes for different stages of communication between a UE and a base station. The base station may indicate, to the UE, the tone spacing scheme in a control channel, a synchronization signal, or a reference signal and the tone spacing scheme may be selected by the base station from available tone spacing schemes for communication. Tone spacing schemes may also be referred to as numerologies.

公开(公告)号：US10674542B2

公开(公告)日：2020-06-02

申请号：US15360181

申请日：2016-11-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC: H04L12/28 ,  H04W74/08 ,  H04W52/36 ,  H04W52/42 ,  H04B7/0408 ,  H04L5/00 ,  H04W24/10 ,  H04W52/18 ,  H04W56/00 ,  H04W52/24 ,  H04B7/08 ,  H04W72/04 ,  H04W52/00 ,  H04B7/02 ,  H04B1/04

Abstract: A mechanism is proposed to reduce overhead at the expense of increasing latency for UEs with weak link gain, while the latency for most UEs may remain the same. In one aspect of this disclosure, a UE may determine the number of attempts for transmitting a RACH signal based on one or more of path loss, the transmit power of the UE, the beam correspondence at the UE, or the power of signals received during the synchronization subframe. The UE may transmit the RACH signal in the determined number of attempts. In another aspect of the disclosure, a base station may combine signals of one or more RACH attempts to decode a RACH signal. The base station may inform a UE regarding the number of RACH subframes that the base station uses for decoding the RACH signal through a random access response message.

公开(公告)号：US20200154336A1

公开(公告)日：2020-05-14

申请号：US16676847

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Piyush Gupta ,  Luca Blessent ,  Tao Luo ,  Karl Georg Hampel ,  Navid Abedini ,  Jianghong Luo ,  Junyi Li

IPC: H04W40/12 ,  H04W28/02 ,  H04W28/08 ,  H04W24/10 ,  H04B17/336 ,  H04B17/318 ,  H04W80/02 ,  H04W88/14

Abstract: Methods, systems, and devices for wireless communications are described that support resource utilization based event triggering. A wireless node in a wireless communications system may establish a connection with a core network via a path that includes one or more relay nodes. The wireless node may determine that a network load associated with one or more paths between the wireless node and the core network has changed, or that a difference between two or more network loads of different paths has changed. Based on such a determination, the wireless node may transmit a report to the network. In some cases, the network may receive the report from the wireless node, and may initiate a path change based on the report.

公开(公告)号：US10609657B2

公开(公告)日：2020-03-31

申请号：US16054058

申请日：2018-08-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Navid Abedini ,  Tao Luo

IPC: H04W52/36 ,  H04L5/00 ,  H04W74/08 ,  H04W52/14 ,  H04W52/50 ,  H04B7/06 ,  H04W52/32 ,  H04W52/40

Abstract: Beam specific power ramping counters may be used to adjust uplink transmit power. For example, a user equipment (UE) may use counters for beam specific power control of Random Access Channel (RACH) Message1 transmissions. A UE may transmit a RACH message1 on a beam specific resource and increment a counter corresponding to a gNB downlink beam. Power adjustments may be made on subsequent re-transmissions of the RACH message1 according to a power control policy. The power control policy may call for applying a power ramping function based on the value(s) of one or more of the counters.

公开(公告)号：US20200084819A1

公开(公告)日：2020-03-12

申请号：US16562320

申请日：2019-09-05

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Karl Georg Hampel ,  Junyi Li ,  Tao Luo ,  Wanshi Chen

IPC: H04W76/18 ,  H04B7/14 ,  H04W76/15 ,  H04W76/38 ,  H04W72/12 ,  H04L12/24

Abstract: A relay node supporting mobile terminal (MT) functionality and distributed unit (DU) functionality may receive a timing advance (TA) value for uplink synchronization associated with a timing alignment timer from a parent node. In some cases, the timing alignment timer may expire prior to the relay node receiving a next TA value. Upon expiration of the timing alignment timer, the relay node may initiate a second timer (e.g., a transition timer) associated with the transitioning of a DU entity of the relay node to a DU transition state. The DU transition state is associated with certain DU behavior for serving child nodes while the transition timer is active. Configuration of the DU transition state may be identified by the relay node, or received from a parent node. In cases where the transition timer expires prior to receiving a next TA value, the DU may declare a loss of uplink synchronization.

公开(公告)号：US20200053626A1

公开(公告)日：2020-02-13

申请号：US16537313

申请日：2019-08-09

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Tao Luo ,  Karl Georg Hampel ,  Jianghong Luo ,  Muhammad Nazmul Islam ,  Junyi Li

IPC: H04W40/22 ,  H04L12/733 ,  H04W40/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that provide for hop-count indication in an integrated access and backhaul (IAB) network. An IAB-node may adopt and indicate multiple values for hop-count. The hop-count may be conveyed by a number of different reference signals and channels. A resource pattern and/or a slot pattern may also be associated with the hop-count to simply signaling. By associating the patterns with the hop-count, an IAB-node may be able to infer the resource pattern used by another IAB-node.

公开(公告)号：US10536313B2

公开(公告)日：2020-01-14

申请号：US16028308

申请日：2018-07-05

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Muhammad Nazmul Islam ,  Bilal Sadiq ,  Peter Gaal ,  Haitong Sun

IPC: H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for generating and communicating reference signals. Certain aspects provide a method for communicating reference signals. The method includes selecting a reference sequence of a plurality of reference sequences to transmit in a cell in a synchronization signal block (SSB) based at least on a logical value, wherein the logical value is determined based on a SSB index indicating a location of the SSB within a set of resources of a plurality of sets of resources and at least one of a cell ID of the cell, a set index indicating a location of the set of resources within the plurality of sets of resources, or a second value based on system information corresponding to the cell; and transmitting the selected reference sequence in the SSB.