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公开(公告)号:US20250048394A1
公开(公告)日:2025-02-06
申请号:US18717471
申请日:2022-12-07
Applicant: Nokia Technologies Oy
Inventor: Daniel MEDINA , Nuno Manuel KIILERICH PRATAS , Ling YU , Vinh VAN PHAN , Berthold PANZNER , Torsten WILDSCHEK , Stepan KUCERA , Lianghai JI
IPC: H04W72/25 , H04L5/00 , H04W72/0453
Abstract: Systems, methods, and apparatuses for sidelink collision avoidance based on sensing, such as PSFCH sensing, are provided. One method may include sensing, by a first UE, a first sidelink feedback transmission from a second UE in a first PSFCH resource, and determining, based on the first PSFCH resource, a first radio resource in which the second UE received a first data transmission from a third UE. The method may also include sensing a second sidelink feedback transmission from the second UE in a second PSFCH resource, determining, based on the second PSFCH resource, a second radio resource in which the second UE received a second data transmission from the third UE, and determining, based on at least one of the determined first radio resource or second radio resource, a third radio resource in which the second UE is expected to receive a third data transmission from the third UE.
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公开(公告)号:US20250039925A1
公开(公告)日:2025-01-30
申请号:US18716008
申请日:2021-12-14
Applicant: Nokia Technologies Oy
Inventor: Nuno Manuel KIILERICH PRATAS , Ling YU , Torsten WILDSCHEK , Vinh VAN PHAN , Yong LIU , Tao TAO , Naizheng ZHENG
IPC: H04W74/0808 , H04W24/08
Abstract: Example embodiments of the present disclosure relate to adjustment of contention window (CW) for listen before talk (LBT). A device determines a target size of a contention window for listen before talk at least in part based on at least one of a first metric and a second metric. The first metric indicates a level of intra-system activity of one of the plurality of systems. The second metric indicates a level of inter-system activity of the plurality of systems. The at least one of first and second metrics are determined by the device based on one or more messages in a set of resources shared by a plurality of systems. This solution enables the device to adjust the LBT by determining the target size of the contention window. By doing so, the device may determine an appropriate size of the contention window even when HARQ feedback is not available. In this way, a system may be able to coexist fairly with other systems in unlicensed spectrum.
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公开(公告)号:US20250039903A1
公开(公告)日:2025-01-30
申请号:US18776512
申请日:2024-07-18
Applicant: Nokia Technologies Oy
Inventor: Daniel MEDINA , Torsten WILDSCHEK , Sayed Ali MARANDI , Takayuki SHIMIZU , Claude ARZELIER
IPC: H04W72/25 , H04W72/0446
Abstract: An apparatus including at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus at least to: determine a transmit beam or a time-domain resource associated with a sidelink transmission; and determine at least one physical sidelink feedback channel transmission symbol within a slot for a physical sidelink feedback channel transmission in response to the sidelink transmission at least based on the determined transmit beam or time-domain resource.
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公开(公告)号:US20240348401A1
公开(公告)日:2024-10-17
申请号:US18632655
申请日:2024-04-11
Applicant: Nokia Technologies Oy
Inventor: Ryan KEATING , Torsten WILDSCHEK , Taylan SAHIN , Hyun-Su CHA , Prajwal KESHAVAMURTHY
CPC classification number: H04L5/0051 , G01S5/0205 , H04W72/25
Abstract: Systems, methods, apparatuses, and computer program products for dynamic gap symbol in sidelink positioning reference signal (SL PRS) resource configuration. A method may include receiving, from a user equipment, a sidelink control information indicating whether a gap symbol exists for a sidelink positioning reference signal transmission. The method may also include determining a time domain allocation of the sidelink positioning reference signal. The method may further include receiving, from the user equipment, a sidelink positioning reference signal with or without the gap symbol. In addition, the method may include performing a positioning computation based on the sidelink positioning reference signal received from the user equipment.
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公开(公告)号:US20240291604A1
公开(公告)日:2024-08-29
申请号:US18432270
申请日:2024-02-05
Applicant: Nokia Technologies Oy
Inventor: Vinh VAN PHAN , Torsten WILDSCHEK , Thomas Haaning JACOBSEN , Faranaz SABOURI-SICHANI , Ling YU , Jari Olavi LINDHOLM
IPC: H04L5/00 , H04W72/02 , H04W72/0446 , H04W72/25 , H04W88/06
CPC classification number: H04L5/0037 , H04W72/02 , H04W72/0446 , H04W72/25 , H04W88/06
Abstract: According to an example aspect of the present invention, there is provided a method comprising, determining, by an apparatus, that co-channel resources in at least one selected slot for transmissions using a first radio access technology overlaps with co-channel resources for transmissions using a second radio access technology and that the co-channel resources are not reserved by another apparatus using the first radio access technology and transmitting by the apparatus, based at least on said determination, a co-channel occupancy message using at least a part of the co-channel resources in the at least one selected slot to occupy the co-channel resources in the at least one selected slot for transmissions using the first radio access technology wherein the at least one selected slot comprises feedback channel resources.
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公开(公告)号:US20240272294A1
公开(公告)日:2024-08-15
申请号:US18438934
申请日:2024-02-12
Applicant: Nokia Technologies Oy
Inventor: Prajwal KESHAVAMURTHY , Oana-Elena BARBU , Torsten WILDSCHEK , Ryan KEATING , Hyun-Su CHA , Stepan KUCERA
IPC: G01S13/76
CPC classification number: G01S13/765 , G01S13/767
Abstract: Inter-alia, a method e.g. performed by an anchor user device is disclosed comprising:
receiving a first target sidelink positioning reference signal;
transmitting a first anchor sidelink positioning reference signal;
performing a receiver-transmitter time difference measurement based on the first target sidelink positioning reference signal and the first anchor sidelink positioning reference signal;
transmitting an indication of a suggestion to switch from a first sidelink round-trip time positioning method to a second round-trip time positioning method based on the receiver-transmitter time difference measurement.
Further, inter-alia a method performed by a target user device is disclosed as well as respective anchor and target user devices.-
37.
公开(公告)号:US20240163921A1
公开(公告)日:2024-05-16
申请号:US18478671
申请日:2023-09-29
Applicant: Nokia Technologies OY
Inventor: Nuno Manuel KIILERICH PRATAS , Torsten WILDSCHEK , Renato Barbosa ABREU , Laura Luque SANCHEZ , Jianguo LIU , Jakob Lindbjerg BUTHLER
IPC: H04W74/08
CPC classification number: H04W74/0808
Abstract: Systems, methods, apparatuses, and computer program products for detecting consistent listen before talk failure cases and suitably recovering from such failure cases in the implementation of sidelink for unlicensed bands are provided. For example, a method can include monitoring a transmission resource pool in which the apparatus is operating. The transmission resource pool can include resource block sets, each of which can be monitored. The monitoring can be applied to resource block sets for which a prohibit timer is not running or is expired. The monitoring can be performed to detect listen before talk failures of the apparatus for each monitored resource block set of the plurality of resource block sets. The method can also include triggering or declaring a consistent listen before talk failure for the monitored resource block set when the count value of detected failures exceeds a threshold.
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公开(公告)号:US20240113815A1
公开(公告)日:2024-04-04
申请号:US17957383
申请日:2022-09-30
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Ling YU , Nuno Manuel KIILERICH PRATAS , Daniel MEDINA , Torsten WILDSCHEK , Vinh VAN PHAN , Faranaz SABOURI-SICHANI , Jari Olavi LINDHOLM , Thomas Haaning JACOBSEN
IPC: H04L1/18
CPC classification number: H04L1/1825 , H04L1/1812
Abstract: Systems, methods, apparatuses, and computer program products for user equipment behavior with respect to hybrid automatic repeat request retransmission in new radio sidelink co-existence scenarios with another technology are provided. For example, a method can include enabling, for a receiving user equipment, hybrid automatic repeat request negative acknowledgement only feedback. The method can also include first determining whether to condition negative feedback on at least one first condition, or second determining whether negative feedback is conditioned on at least one second condition. The method can further include third determining whether to retransmit a message according to hybrid automatic repeat request according to results of the first determining or the second determining. The method can additionally include communicating with the receiving user equipment based on a result of the third determining.
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公开(公告)号:US20240073928A1
公开(公告)日:2024-02-29
申请号:US18236621
申请日:2023-08-22
Applicant: Nokia Technologies Oy
Inventor: Ling YU , Vinh VAN PHAN , Faranaz SABOURI-SICHANI , Lars Holst CHRISTENSEN , Torsten WILDSCHEK , Jari Olavi LINDHOLM , Berthold PANZNER
Abstract: The disclosure relates to an apparatus comprising: means for sending (500) a duplicate sidelink transmission to a user equipment on each carrier of a group of carriers; means for receiving (502) feedback from the user equipment for each carrier; and means for determining (504) a sidelink carrier aggregation capability of the user equipment on the group of carriers based on the feedback.
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