公开(公告)号：US11510149B2

公开(公告)日：2022-11-22

申请号：US16758756

申请日：2017-11-10

Applicant: Nokia Technologies Oy

Inventor： Dan Park ,  Yuantao Zhang ,  Yi Zhang

IPC: H04W52/14 ,  H04W52/08 ,  H04W52/24 ,  H04W52/32 ,  H04W52/40

Abstract: A user equipment that supports a first set of beams accumulates transmit power control (TPC) commands to generate an accumulated correction factor during communication between the user equipment and a base station that supports a second set of beams. The user equipment is configured to use a first subset of the first set of beams during the communication and the base station is configured to use a second subset of the second set of beams during the communication. The user equipment detects a change in the first subset or the second subset. The user equipment resets the accumulated correction factor in response to detecting the change. In some cases, the user equipment generates a plurality of correction factors for a corresponding plurality of closed-loop processes. The user equipment resets some or all of the plurality of correction factors in response to detecting the change.

公开(公告)号：US11291044B2

公开(公告)日：2022-03-29

申请号：US16313953

申请日：2016-07-04

Applicant: Nokia Technologies Oy

Inventor： Zexian Li ,  Yuantao Zhang ,  Yanji Zhang ,  Juha Sakari Korhonen

IPC: H04W48/16 ,  H04W74/08 ,  H04W74/00 ,  H04L5/00

Abstract: Systems, methods, apparatuses, and computer program products of preamble sequence management for contention based access are provided. One method may include a user equipment sending a contention based access (CBA) request message, such as a random access procedure (RACH) message, to a network node (e.g., a base station or eNB). The CBA request message may include an indication that the user equipment wants to obtain a preamble for CBA data transmission and is not for full network access. The method may then include receiving an allocation of a preamble for CBA from the network node.

公开(公告)号：US11229049B2

公开(公告)日：2022-01-18

申请号：US16088191

申请日：2016-05-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Hongchao Li ,  Klaus Ingemann Pedersen ,  Yuantao Zhang ,  Jingyuan Sun ,  Zhuyan Zhao ,  Deshan Miao

IPC: H04W74/00 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W24/02 ,  H04W28/26 ,  H04W28/16 ,  H04L1/00 ,  H04W28/02 ,  H04W48/08

Abstract: A method and apparatus may include receiving configuration signaling from a network node to use a resource pool. The apparatus transmits using contention-based transmission. The method also includes selecting a preamble zone combination from the resource pool. The method may also include transmitting a preamble to the network node using the selected preamble zone combination. A preamble sequence index is used to identify the user equipment.

公开(公告)号：US20210036816A1

公开(公告)日：2021-02-04

申请号：US17045574

申请日：2018-04-06

Applicant: Nokia Technologies Oy

Inventor： Chunhai Yao ,  Yuantao Zhang

IPC: H04L5/00

Abstract: Systems, methods, apparatuses, and computer program products for non-orthogonal multiple access (NOMA) resource utilization scalability are provided. One method may include configuring the number of physical resource blocks (PRBs) allocated for NOMA usage in a cell-specific manner. At least a parameter may be configured and used in determining the number of PRBs allocated for the NOMA. The parameter may refer to at least one of a spreading factor for a spreading based NOMA scheme, or to a repetition number for an interleaver/scrambling based NOMA scheme. The method may also include defining at least one mapping pattern to indicate a mapping of user data to the physical resource blocks.

公开(公告)号：US10778374B2

公开(公告)日：2020-09-15

申请号：US16345013

申请日：2017-10-31

Applicant: Nokia Technologies Oy

Inventor： Yanji Zhang ,  Chunli Wu ,  Yuantao Zhang

IPC: H04W4/00 ,  H04L1/16 ,  H04W28/04 ,  H04W74/00 ,  H04W74/08

Abstract: A method is provided including receiving, by a user equipment from a wireless network, an indication of a plurality of contention based transmission occasions and a monitoring window size that the user equipment monitors for feedback for the contention based transmission; determining, by a user equipment of a wireless network, whether an amount of user data can be transmitted on one or more of contention based transmission occasions; performing one or more contention based transmissions during the one or more of the contention based transmission occasions based at least on the determination; and monitoring for feedback for each of the performed contention based transmissions based at least on the monitoring window size, wherein the feedback includes feedback for each contention based transmission in a feedback mapping window.

公开(公告)号：US10218424B2

公开(公告)日：2019-02-26

申请号：US15861406

申请日：2018-01-03

Applicant: Nokia Technologies Oy

Inventor： Mihai Enescu ,  Yi Zhang ,  Deshan Miao ,  Yuantao Zhang

IPC: H04L27/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04W72/04

Abstract: A method is provided including transmitting a reference signal on a downlink beam to a UE; receiving from the UE a reference signal sequence; determining from the received reference signal sequence at least a preferred uplink beam to pair with the downlink beam; sending downlink signaling to the UE on at least the downlink beam; and receiving uplink signaling from the UE on at least the preferred uplink beam. A further method is provided including receiving a reference signal from a network on a downlink beam; selecting at least one preferred uplink beam to match the downlink beam; selecting a reference signal sequence that corresponds to the selected at least one preferred uplink beam; transmitting the selected reference signal sequence to the network; receiving downlink signaling from the network on at least the downlink beam; and transmitting uplink signaling to the network on the at least one preferred uplink beam.

公开(公告)号：US11916620B2

公开(公告)日：2024-02-27

申请号：US16310072

申请日：2016-06-17

Applicant: Nokia Technologies Oy

Inventor： Yi Zhang ,  Deshan Miao ,  Yuantao Zhang

IPC: H04B7/0404 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0413 ,  H04L5/00 ,  H04W16/28

CPC classification number: H04B7/0404 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04L5/0053 ,  H04W16/28

Abstract: A radio network sends downlink signaling to a user equipment (UE) that triggers an enhanced uplink beam selection protocol, based on quality of the UE's uplink signaling the network receives according to a basic uplink beam selection protocol. In response the UE transmits pre-defined signaling such as uplink beam references signals (U-BRS) with uplink beams according to the downlink signaling. The network measures and selects one or more of those uplink beams for the UE to use for sending uplink data, and notifies this selection to the UE. In various embodiments the basic uplink beam selection protocol is based on uplink-downlink reciprocity, the downlink triggering signaling is dynamic and further selects a subset of uplink beams, and multiple UEs can be triggered in common signaling where blind decoding by the UEs is enabled via a scrambling ID for this enhanced uplink beam selection protocol purpose.

公开(公告)号：US11277240B2

公开(公告)日：2022-03-15

申请号：US16636995

申请日：2017-08-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Yi Zhang ,  Yuantao Zhang ,  Mihai Enescu

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713

Abstract: Various communication systems may benefit from an improved transmission of a sounding reference signal. For example, certain communication systems may benefit from an enhanced sounding reference signal transmission via antenna switching or repetition. A method, in certain embodiments, may include receiving a signaling indication at a user equipment from a network entity. The signaling indication may indicate a configuration for sounding reference signal transmission via at least one of antenna switching or repetition using a resource group. The resource group may comprise a plurality of resources that are either adjacent or have a limited time interval between at least two of the plurality of resources within the resource group. The method may also include transmitting the sounding reference signal from the user equipment to the network entity via at least one of the antenna switching or the repetition using the resource group.

公开(公告)号：US11096152B2

公开(公告)日：2021-08-17

申请号：US16487791

申请日：2017-03-20

Applicant: Nokia Technologies Oy

Inventor： Yuantao Zhang ,  Yi Zhang

IPC: H04W72/04

Abstract: In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform at least the following: receive indication of bandwidth allocation for grant-free preamble transmission, receive indication of bandwidth allocation for grant-free resources, wherein the bandwidth allocated for grant-free preamble transmission is the same or larger than the bandwidth allocated for grant-free resources, receive configuration of one or more preamble repetition units, and allocate resources for grant-free preamble and data transmissions, wherein the grant-free preamble is allocated in the configured one or more preamble repetition units and within the bandwidth allocated for grant-free preamble transmission, and data is allocated in the grant-free resources.

公开(公告)号：US10904943B2

公开(公告)日：2021-01-26

申请号：US16066094

申请日：2016-01-07

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Yuantao Zhang ,  Chunhai Yao ,  Yanji Zhang ,  Rapeepat Ratasuk ,  Mihai Enescu

IPC: H04W76/28 ,  H04L5/00 ,  H04W4/70 ,  H04L1/08 ,  H04W72/04 ,  H04L1/18 ,  H04L1/00

Abstract: Various communication systems may benefit from time discontinuous transmission. For example, narrow band Internet of things (NB-IoT) may benefit from having transmissions with sufficient time diversity to avoid unnecessary repetition. A method can include configuring a control channel and data channel partitioning pattern within a configured time period. The method can additionally include communicating with at least one user equipment based on the control channel and data channel partitioning pattern.