公开(公告)号：US20250089098A1

公开(公告)日：2025-03-13

申请号：US18720431

申请日：2021-12-16

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Ping YUAN

IPC: H04W74/0833 ,  H04W72/115 ,  H04W76/38

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of enhanced blind retransmission scheme. The method comprises: receiving, at a first device and from a second device, a configuration for determining a target offset associated with a contention resolution timer for a random access procedure; determining the target offset based on the configuration; transmitting, to the second device, a message associated with the random access procedure, the message comprising an identity of the first device for random access; and controlling a starting and termination of the contention resolution timer based on the target offset and the transmission of the message. In this way, the blind retransmission of MSG3 can be supported in the random access procedure through controlling a starting and termination of the contention resolution timer based on the transmission of the message and an offset, which is beneficial to the NTN.

公开(公告)号：US20240340779A1

公开(公告)日：2024-10-10

申请号：US18695257

申请日：2021-09-30

Applicant: Nokia Technologies Oy

Inventor： Tao YANG ,  Pingping WEN ,  Hao LIU ,  Nuan SONG ,  Yan ZHAO

IPC: H04W48/16 ,  H04W72/1268 ,  H04W76/10

CPC classification number: H04W48/16 ,  H04W72/1268 ,  H04W76/10

Abstract: Example embodiments of the present disclosure relate to methods, devices apparatuses and computer readable storage media of an access procedure for Cell-free Multi-input Multi-output (MIMO). In example embodiments, a terminal device transmits an access request to a first set of uplink access network devices. The access request contains a list of identifications of candidate downlink access network devices. Then, the terminal device receives an access response from a first set of downlink access network devices.

公开(公告)号：US20240214128A1

公开(公告)日：2024-06-27

申请号：US18555760

申请日：2021-05-18

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Ping YUAN

IPC: H04L1/1825 ,  H04L1/1867

CPC classification number: H04L1/1825 ,  H04L1/1896

Abstract: This disclosure presents solutions for a communication system of a non-terrestrial network (NTN) node and a user equipment (UE) to determine, where the NTN node can determine one or more HARQ retransmission schemes for one or more LCHs used by the UE. The HARQ retransmission scheme can be mapped into one, two, or five bits of the DCI signal, depending on the mapping algorithm selected. In some example embodiments. LCHs can be grouped by using similar LCH prioritization or similar HARQ retransmission schemes. HARQ retransmission schemes can be mapped to the LCG. If there remains sufficient data space in the TBS/UL, other LCH can be included into the transmission even though the other LCH utilize different HARQ retransmission schemes. The UE can encode its HARQ transmission using the HARQ retransmission scheme indicated for the LCH the UE is utilizing.

公开(公告)号：US20240204922A1

公开(公告)日：2024-06-20

申请号：US18555651

申请日：2021-05-18

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Mads LAURIDSEN ,  Ping YUAN ,  Frank FREDERIKSEN

IPC: H04L1/1829 ,  H04L1/1867

CPC classification number: H04L1/1854 ,  H04L1/1896

Abstract: This disclosure presents solutions for a IoT/eMTC over NTN communication system of a non-terrestrial network (NTN) node and a user equipment (UE) to determine whether and how scheduling information can be sent in the resources for a HARQ feedback, when the HARQ feedback is disabled. In some example embodiments, the UE can signal a buffer size. e.g., buffer status, by encoding the HARQ feedback and scheduling request (SR) utilizing two bits to provide the fast scheduling information. The NTN node can specify to the UE a set of HARQ parameters to provide an indication of HARQ feedback status, which can be disabling or enabling of HARQ feedback, and to provide an indication of the resources for transmission of HARQ feedback when the indication of HARQ feedback status is disabling.

公开(公告)号：US20220338240A1

公开(公告)日：2022-10-20

申请号：US17642977

申请日：2019-10-15

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Ping YUAN ,  Chuli WU ,  Samuli TURTINEN ,  Benoist SEBIRE

IPC: H04W72/14 ,  H04L1/18

Abstract: According to embodiments of the present disclosure, service-based retransmission scheme for uplink in NTN has been proposed, which can support multiple retransmission schemes based on service type for uplink. The network device determines different retransmission schemes based on the QoS requirements of the services. The terminal device selects the retransmission scheme for the service. In this way, the QoS of different service and reliability of MAC CE can be guaranteed.

公开(公告)号：US20240396784A1

公开(公告)日：2024-11-28

申请号：US18694518

申请日：2021-09-30

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Jingyuan SUN ,  Ping YUAN

IPC: H04L27/26 ,  G01S19/39 ,  H04W74/0833

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses, and computer readable storage media of enhanced UL synchronization for improved system performance. The method comprises obtaining a configuration of a gap within which a radio resource control connected state of the first device is kept; receiving, within the gap, system broadcasted information used for deriving a compensation associated with a transmission between the first device and a second device; and performing a uplink synchronization between the first device to the second device within the gap. In this way, a process of the GNSS fix position refreshing and/or satellite ephemeris data reception and UL/DL re-synchronization can be achieved by the UE in RRC connected mode and therefore the resources and power consumption can be reduced.

公开(公告)号：US20220369377A1

公开(公告)日：2022-11-17

申请号：US17766997

申请日：2019-11-07

Applicant: Nokia Technologies OY

Inventor： Ping YUAN ,  Pingping WEN ,  Chunli WU

IPC: H04W74/08

Abstract: Embodiments of the present disclosure relate to dynamic active time trigger in CFRA. A first device receives a random access request from a second device in a discontinuous reception mode. The first device transmits a random access response to the second device. The random access response comprises at least one of: an indicator of an offset between a reception of the random access response and a start of monitoring scheduling information from the first device, or a flag indicating whether the indicator is present in the random access response. The first device transmits the scheduling information to the second device based on the offset.

公开(公告)号：US20250030508A1

公开(公告)日：2025-01-23

申请号：US18714263

申请日：2021-11-30

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN

IPC: H04L1/1867 ,  H04L5/00 ,  H04L69/22

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium for enhancements on HARQ feedback. The method comprises: receiving, at a first device and from a second device, first control information for scheduling a second transmission of the second device and feedback information associated with the second transmission, and second control information for scheduling a third transmission of the first device; decoding, based on the second control information, the second transmission from the second device; generating, based on the decoding result, a first transmission comprising the feedback information and the third transmission comprising at least a duplication of the feedback information; transmitting, to the second device and based on the first control information, the first transmission; and transmitting, to the second device and based on the second control information, the third transmission. By providing the duplication of HARQ feedback, the reliability of HARQ feedback is enhanced, which in turn improves the efficiency of DL data transmissions and reduces frequency resources as well as the power consumption.

公开(公告)号：US20230379976A1

公开(公告)日：2023-11-23

申请号：US18248498

申请日：2020-10-21

Applicant: Nokia Technologies Oy

Inventor： Pingping WEN ,  Ping YUAN

IPC: H04W74/08

CPC classification number: H04W74/0833

Abstract: Disclosed are methods for selecting a random access procedure type. An example method may include receiving configuration information including a threshold associated with a transmission quality factor via a non-terrestrial network downlink, obtaining a value of the transmission quality factor, and selecting a 2-step random access procedure or a 4-step random access procedure based on the threshold and the obtained value of the transmission quality factor. Related apparatuses and computer readable media are also disclosed.

公开(公告)号：US20230083812A1

公开(公告)日：2023-03-16

申请号：US17798934

申请日：2020-02-13

Applicant: Nokia Technologies Oy

Inventor： Wenjian Wang ,  Gerhard SCHREIBER ,  Pingping WEN

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

Abstract: Embodiments of the present disclosure relate to generation and detection of physical random access channel (PRACH) preamble. A first device determines a base sequence, a first scrambling sequence for the base sequence, and a second scrambling sequence for the base sequence. The first device generates a random access preamble by applying the first and second scrambling sequences to different portions of the base sequence, respectively. The first device transmits the random access preamble to a second device.