公开(公告)号：US20190053261A1

公开(公告)日：2019-02-14

申请号：US16053452

申请日：2018-08-02

Applicant: Nokia Technologies Oy

Inventor： Timo LUNTTILA ,  Klaus HUGL

IPC: H04W72/12 ,  H04W72/04

Abstract: Systems, methods, apparatuses, and computer program products for restricting UE autonomous transmissions are provided.

公开(公告)号：US20230156788A1

公开(公告)日：2023-05-18

申请号：US17995386

申请日：2020-04-09

Applicant: Nokia Technologies OY

Inventor： Timo LUNTTILA ,  Tao TAO ,  Claudio ROSA

IPC: H04W74/08 ,  H04L27/26

CPC classification number: H04W74/0808 ,  H04L27/2605

Abstract: Disclosed are methods for determining channel access for uplink transmissions. An example method (200) may include determining (210) a duration of a gap between an uplink transmission of a first apparatus and a downlink transmission of a second apparatus before the uplink transmission and in a channel occupancy time of the second apparatus in a case where the uplink transmission falls within the channel occupancy time, and determining (220) at least one of a channel access type and a cyclic prefix extension for the uplink transmission according to the duration of the gap. Related apparatuses and computer readable media are also disclosed.

公开(公告)号：US20220408456A1

公开(公告)日：2022-12-22

申请号：US17626672

申请日：2019-08-13

Applicant: Nokia Technologies Oy

Inventor： Chunli WU ,  Samuli TURTINEN ,  Tao TAO ,  Timo LUNTTILA

IPC: H04W72/12 ,  H04W74/08

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of channel access procedure based on the channel access priority class (CAPC). The method comprises receiving scheduling information from a second device, the scheduling information at least indicating resources allocated for a transmission from the first device to the second device, a channel access type for the transmission and an expected access priority for the transmission. The method further comprises comparing the expected access priority with an access priority of data in a buffer of the first device and determining use of the resources based on the comparison. In this way, the Channel Occupancy Time (COT) sharing can be used only for the data with higher or equal priority to avoid unintended usage of the grant on unlicensed band and coexistence fairness among nodes with different types of traffic to be transmitted may be achieved.

公开(公告)号：US20220255672A1

公开(公告)日：2022-08-11

申请号：US17625301

申请日：2019-08-06

Applicant: Nokia Technologies Oy

Inventor： Tao TAO ,  Chunli WU ,  Timo LUNTTILA

IPC: H04L1/18 ,  H04W72/14

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission mechanism for configured grant uplink transmission. The method comprising transmitting, to a second device, a transport block while starting a configured grant retransmission timer for autonomous retransmission of the transport block; in response to receiving, from the second device, a feedback indicating unsuccessful reception of the transport block, adjusting expiry time of the configured grant retransmission timer without starting the autonomous retransmission of the transport block; determining whether scheduling information for retransmission of the transport block is received before the adjusted configured grant retransmission timer expires; and in response to determining that the scheduling information is received, retransmitting the transport block while stopping the configured grant retransmission timer. In this way, the retransmission in the Hybrid Automatic Repeat Request process could be performed according to the uplink grant scheduled by the network device and therefore the retransmission efficiency for configured grant uplink transmission in unlicensed spectrum can be improved.

公开(公告)号：US20220030627A1

公开(公告)日：2022-01-27

申请号：US17498690

申请日：2021-10-11

Applicant: Nokia Technologies Oy

Inventor： Kari HOOLI ,  Esa TIIROLA ,  Karol SCHOBER ,  Timo LUNTTILA

IPC: H04W74/08 ,  H04W72/12

Abstract: A method may include, by an apparatus, sensing at least one beam; initiating a channel occupancy time based on the sensing; transmitting at least one first downlink transmission on the at least one beam during the channel occupancy time, wherein the at least one first downlink transmission on the at least one beam triggers at least one first uplink transmission on the at least one beam during the channel occupancy time; receiving the at least one first uplink transmission on the at least one beam during the channel occupancy time; determining interference condition on the at least one beam based on the at least one first uplink transmission; and scheduling at least one second downlink transmission or at least one second uplink transmission on the at least one beam with restriction during a rest of the channel occupancy time when the interference condition meets at least one threshold requirement.

公开(公告)号：US20190260428A1

公开(公告)日：2019-08-22

申请号：US16276058

申请日：2019-02-14

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Klaus HUGL ,  Timo LUNTTILA

IPC: H04B7/0417 ,  H04B7/0456

Abstract: Systems, methods, apparatuses, and computer program products for dynamic transmit diversity fallback are provided. One method may include configuring a user equipment with a maximum number of multiple-input multiple-output (MIMO) layers used for transmission mode 9 or transmission mode 10 scheduling, and performing, by a network node, at least one of transmission mode 9 or transmission mode 10 scheduling. The configuring may include indicating to the user equipment to use a modified mapping table providing transmit diversity fallback for the at least one of transmission mode 9 or transmission mode 10 scheduling.

公开(公告)号：US20190020459A1

公开(公告)日：2019-01-17

申请号：US16070796

申请日：2017-01-17

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Kari HOOLI ,  Esa TIIROLA ,  Timo LUNTTILA ,  Juha KORHONEN ,  Esa MALKAMÄKI

IPC: H04L5/00 ,  H04L1/18

Abstract: A method and apparatus may include receiving a first signal. The first signal includes first configuration information, second configuration information, and third configuration information. The method may also include detecting a second signal based on the first configuration information. The method may also include transmitting a third signal based on the second configuration information. The method may also include transmitting a fourth signal based on the third configuration information and the detected second signal.

公开(公告)号：US20180270794A1

公开(公告)日：2018-09-20

申请号：US15764442

申请日：2016-09-28

Applicant: Nokia Technologies Oy

Inventor： Esa TIIROLA ,  Kari HOOLI ,  Timo LUNTTILA ,  Klaus HUGL

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0083 ,  H04L5/0096

Abstract: Various communication systems may benefit from efficient communications. For example, low latency long term evolution (LTE) systems may benefit from a short physical uplink shared channel (PUSCH) arrangement. A method may include operating a user equipment to follow a shortened transmission time interval. The shortened transmission time interval can be an integer number, L, of symbols in length. The method can also include sending a demodulation reference signal in at least a first symbol of the L symbols of the shortened transmission time interval.