公开(公告)号：US20200305198A1

公开(公告)日：2020-09-24

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: H04W74/08 ,  H04W74/00 ,  H04W28/02 ,  H04W72/04

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：US20200186306A1

公开(公告)日：2020-06-11

申请号：US16642234

申请日：2017-09-11

Applicant: Nokia Technologies Oy

Inventor： Jingyuan SUN ,  Yuantao ZHANG ,  Zhuyan ZHAO ,  Hong ZHOU

IPC: H04L5/00 ,  H04W72/04

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for uplink transmission without an uplink grant. In example embodiments, a method implemented in a terminal device in a communication system is presented. According to this method, the terminal device determines a redundancy version (RV) pattern for a plurality of uplink transmissions. The RV pattern indicates a plurality of RV indices. At least one RV index in the respective plurality of RV indices is periodic in the RV pattern. The terminal device determines coded bits to be transmitted in the plurality of uplink transmissions based at least in part on the RV pattern. The terminal device transmits the coded bits to the network device in at least one transmission of the plurality of uplink transmissions without an uplink grant. By utilizing this periodic structure of the RV pattern, the network device may have more chance to receive the predefined or configured RV index with self-decodable transmissions for example, leading to a higher reliability and better decoding performance for the grant-free communication systems.

公开(公告)号：US20190215822A1

公开(公告)日：2019-07-11

申请号：US16307732

申请日：2016-06-08

Applicant: Nokia Technologies Oy

Inventor： Yuantao ZHANG ,  Zhuyan ZHAO ,  Jingyuan SUN ,  Hongchao LI ,  Yanji ZHANG

IPC: H04W72/04 ,  H04W74/00 ,  H04W72/00 ,  H04L1/18

CPC classification number: H04W72/048 ,  H04L1/1822 ,  H04L1/1887 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0094 ,  H04W72/005 ,  H04W72/042 ,  H04W72/121 ,  H04W74/006

Abstract: A method and apparatus to configure a resource pool for a plurality of user equipment configured with contention based transmission; configure a resource allocation within the resource pool for a contention based transmission by a user equipment of the plurality of user equipment configured for contention based transmissions, wherein the resource allocation is configured with more than one predefined or preconfigured sets of resource allocation granularities; and send information including the resource allocation towards the user equipment, wherein the information includes an indication of a set of the predefined or preconfigured sets of the resource allocation granularities that the user equipment is to use for the contention based transmission.

公开(公告)号：US20240137885A1

公开(公告)日：2024-04-25

申请号：US18264993

申请日：2021-03-05

Applicant: Nokia Technologies Oy

Inventor： Ping YUAN ,  Mads LAURIDSEN ,  Jingyuan SUN ,  Srinivasan SELVAGANAPATHY

IPC: H04W56/00

CPC classification number: H04W56/0045

Abstract: Embodiments of the present disclosure propose a solution for availability of system broadcasted information such as GNSS information which can be used for deriving time and/or frequency domain compensation. According to embodiments of this present disclosure, a validity timer for system broadcasted information is introduced in both UE and network to guarantee the system broadcasted information availability status is synchronized in two nodes, and the system broadcasted information is valid to pre-compensate in time and/or frequency domain when the timer is running. In this way, the UE can be scheduled with correct timing and frequency estimation in UL transmission.

公开(公告)号：US20230388079A1

公开(公告)日：2023-11-30

申请号：US18248726

申请日：2020-10-16

Applicant: Nokia Technologies OY

Inventor： Jingyuan SUN ,  Rapeepat RATASUK ,  David BHATOOLAUL

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0094

Abstract: In one embodiment, the method includes receiving, at a first device and from a second device, an indication of a resource range, related to a transmission of a demodulation reference signal associated with a control channel reception, including at least one of at least one entire resource element group, or at least one entire control channel element; and wherein the resource elements located in the resource range are dedicated for the transmission of the demodulation reference signal and unavailable for a transmission of control information from the second device; receiving the demodulation reference signal based on the indication; and decoding a control channel between the first and second devices based on the demodulation reference signal.

公开(公告)号：US20240414672A1

公开(公告)日：2024-12-12

申请号：US18702177

申请日：2021-11-01

Applicant: Nokia Technologies Oy

Inventor： Ping YUAN ,  Mads LAURIDSEN ,  Jingyuan SUN

IPC: H04W56/00 ,  H04B7/185

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for conditional link synchronization in non-terrestrial networks. In example embodiments, a first device detects system broadcasted information, if there is data to be transmitted from the first device to the second device. Alternatively, the first device detects system broadcasted information if the first device receives a request for synchronization information from the second device. If the first device receives the system broadcasted information, it generates the synchronization information based on the system broadcasted information. Further, the first device transmits the synchronization information to the second device.

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：US20190181884A1

公开(公告)日：2019-06-13

申请号：US16321911

申请日：2016-08-08

Applicant: Nokia Technologies Oy

Inventor： Jingyuan SUN ,  Deshan MIAO ,  Yi ZHANG ,  Keeth Saliya JAYASINGHE

IPC: H03M13/11 ,  H03M13/00 ,  H04L1/00 ,  H04L27/26 ,  H04L1/18

CPC classification number: H03M13/1185 ,  H03M13/116 ,  H03M13/353 ,  H03M13/616 ,  H03M13/6306 ,  H03M13/6393 ,  H03M13/6516 ,  H04L1/0057 ,  H04L1/0063 ,  H04L1/0071 ,  H04L1/1819 ,  H04L27/2607

Abstract: A method includes accessing information, and at least one of encoding or decoding the information using a parity check matrix based on a coding rate. A portion of a data part in the parity check matrix has been generated based on part or all of another matrix. Apparatus, computer programs, and computer program products are also described. The apparatus may be a wireless mobile device or a wireless network access node. A communication system may include one or more of the wireless mobile devices and one or more of the access nodes, each using a version of the method.

公开(公告)号：US20250031210A1

公开(公告)日：2025-01-23

申请号：US18713639

申请日：2021-12-08

Applicant: Nokia Technologies Oy

Inventor： Jingyuan SUN ,  Mads LAURIDSEN ,  Frank FREDERIKSEN ,  Ping YUAN

IPC: H04W72/21 ,  H04L5/00

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium of enhancements on uplink transmission. The method comprises: transmitting, to a second device, a first group of transmission repetitions based on first uplink synchronization information: prior to transmitting a second group of transmission repetitions, determining second uplink synchronization information based on system broadcast information for deriving transmission compensation in at least one of time domain and frequency domain; and transmitting, to the second device and based on the second uplink synchronization information, the second group of transmission repetitions. The method helps guarantee the effective receipt of uplink repetitions with compensation jump in time or frequency domain or update due to changing of uplink synchronization information. In addition, the network knows how to combine or select repetitions for best performance when the UE automatically adjusts the UL compensation in time or frequency domain during the repetitions.

公开(公告)号：US20240349217A1

公开(公告)日：2024-10-17

申请号：US18579393

申请日：2021-08-06

Applicant: Nokia Technologies Oy

Inventor： Gilsoo LEE ,  Tzu-Chung HSIEH ,  Jingyuan SUN

IPC: H04W56/00 ,  H04W84/06

CPC classification number: H04W56/0045 ,  H04W56/0035 ,  H04W84/06

Abstract: This disclosure presents methods to compensate for a phase drift in an uplink communication signal between a user equipment (UE) and a non-terrestrial network (NTN) node. Due to the change rate of velocity of the UE relative to the NTN node, a transmission signal can drift causing demodulation errors at the receiver. The UE can apply compensation processes to the transmission signal so that the received signal is closer to the original transmitted signal as compared to a non-compensated signal. Alternatively, the NTN node can apply compensation process to modify the reference phase to be closer to the phase of the received signal in the demodulation process. The location of the UE, as well as its relative elevation, can be used with the NTN node's location, to generate the compensation information. The compensation can be applied on a symbol-by-symbol basis or to a group of M symbols.