公开(公告)号：US20240155311A1

公开(公告)日：2024-05-09

申请号：US18548651

申请日：2021-04-06

Applicant: Nokia Technologies Oy

Inventor： Ugur Baran ELMALI ,  Volker PAULI ,  Esa Mikael MALKAMÄKI ,  Benoist Pierre SEBIRE ,  David NAVRÁTIL

IPC: H04W4/06 ,  H04L1/1812 ,  H04W72/11 ,  H04W72/12

CPC classification number: H04W4/06 ,  H04L1/1812 ,  H04W72/11 ,  H04W72/12

Abstract: Embodiments of the present disclosure relate to reliable SPS configuration for MBS. In the solution, a first device starts a first timer upon receiving, from a second device, configuration of a semi-persistent scheduling (SPS) for a multicast and broadcast service (MBS). Then if the first timer expires and there is no information received to activate corresponding SPS scheduled transmissions, the first device transmits to the second device a message indicating that the first device failed to receive the information. This solution allows reliable SPS configuration for MBS.

公开(公告)号：US20230413296A1

公开(公告)日：2023-12-21

申请号：US18248776

申请日：2020-10-20

Applicant: Nokia Technologies Oy

Inventor： Naizheng ZHENG ,  Volker PAULI ,  Athul PRASAD ,  Ugur Baran ELMALI ,  David NAVRÁTIL ,  Karol SCHOBER ,  David BHATOOLAUL

IPC: H04W72/30 ,  H04W4/06

CPC classification number: H04W72/30 ,  H04W4/06

Abstract: Embodiments of the present disclosure relate to methods, apparatuses and computer readable storage media for search space configuration for multicast traffic. According to embodiments of the present disclosure, a first device determines, from a group of search space sets configured to the first device, at least one search space set for monitoring multicast traffic from a second device, based on at least one of a priority of the multicast traffic and respective types of the search space sets. The first device monitors the multicast traffic from the second device in the at least one search space set. The solution enables multicast traffic to be monitored in a common search space set, a user-specific search space set or a multicast search space set in different scenarios.

公开(公告)号：US20230389050A1

公开(公告)日：2023-11-30

申请号：US18249761

申请日：2020-10-23

Applicant: Nokia Technologies Oy

Inventor： Athul PRASAD ,  Volker PAULI ,  David BHATOOLAUL ,  David NAVRÁTIL ,  Naizheng ZHENG ,  Ugur ELMALI

IPC: H04W72/30

CPC classification number: H04W72/30

Abstract: Embodiments of the present disclosure relate to downlink control and data channel configuration. A method comprises: determining, at a first device, a transmission scheme of control information for a second device based on at least one multicast and broadcast service related criterion, the control information related to scheduling multicast service traffic to the second device; transmitting, to the second device, configuration information for causing the second device to obtain the control information; and transmitting, to the second device and based on the determined transmission scheme, the control information on a control channel between the first device and the second device. In this way, the correlation between the scheduling mechanism of multicast traffic on the downlink data channel and the transmission mechanism of control information on the downlink control channel can be decoupled, resulting in a flexible and dynamic downlink channel configuration and an increased radio resource efficiency.

公开(公告)号：US20240396759A1

公开(公告)日：2024-11-28

申请号：US18689001

申请日：2021-09-27

Applicant: Nokia Technologies Oy

Inventor： Ugur Baran ELMALI ,  Volker PAULI ,  Naizheng ZHENG ,  David BHATOOLAUL ,  Athul PRASAD ,  David NAVRATIL

IPC: H04L12/18 ,  H04L1/1812 ,  H04L1/1829 ,  H04W72/02 ,  H04W72/21

Abstract: Disclosed are methods and apparatus for multiplexing NACK-only HARQ feedback. A terminal device in a communication network may comprise at least one processor and at least one memory having computer program code stored thereon. The at least one memory and the computer program code may be configured, with the at least one processor, cause the terminal device to perform: receiving, from a network device, one or more uplink control channel configurations for transmitting HARQ feedback for multicast transmission of one or more services; receiving, from the network device, the multicast transmissions of the one or more services; converting HARQ feedback bits of the HARQ feedback for the multicast transmissions of the one or more services; multiplexing the converted HARQ feedback bits into a multiplexed HARQ feedback; selecting a physical uplink control channel (PUCCH) resource for transmission of the multiplexed HARQ feedback; and transmitting the multiplexed HARQ feedback using the selected PUCCH resource.

公开(公告)号：US20240348375A1

公开(公告)日：2024-10-17

申请号：US18681364

申请日：2021-08-06

Applicant: Nokia Technologies Oy

Inventor： Athul PRASAD ,  David BHATOOLAUL ,  Naizheng ZHENG ,  David NAVRÁTIL ,  Volker PAULI ,  Ugur Baran ELMALI

IPC: H04L1/1822 ,  H04L1/1829

CPC classification number: H04L1/1822 ,  H04L1/1864

Abstract: Example embodiments of the present disclosure relate to configuration and interpretation of control information for a retransmission. A first device receives control information from a second device. In accordance with a determination that the control information indicates a retransmission to be scheduled from the second device. the first device determines an information combination of at least one of the following: at least one field of the control information, a search space in which the control information is received. and a format of the control information. The first device further determines a source traffic type of the retransmission based on the information combination, the source traffic type of the retransmission indicating whether the retransmission is for traffic in a point-to-multipoint initial transmission or in a point-to-point initial transmission.

公开(公告)号：US20240056329A1

公开(公告)日：2024-02-15

申请号：US18258124

申请日：2021-01-17

Applicant: Nokia Technologies Oy

Inventor： Ugur Baran ELMALI ,  David BHATOOLAUL ,  David NAVRÁTIL ,  Naizheng ZHENG ,  Volker PAULI ,  Athul PRASAD

IPC: H04L12/18 ,  H04L1/1812 ,  H04L5/00 ,  H04L1/1829

CPC classification number: H04L12/1868 ,  H04L1/1812 ,  H04L5/0055 ,  H04L1/1861

Abstract: Example embodiments of the present disclosure relate to semi-static HARQ-ACK codebook construction for frequency-multiplexed DL data transmission. A first device includes at least one processor; and at least one memory including computer program codes; wherein the at least one memory and the computer program codes are configured to, with the at least one processor, cause the first device to: receive downlink configuration information from a second device, receive at least two frequency-multiplexed downlink transmissions at one downlink data transmission occasion, and set, based on the downlink configuration information and an error state of the frequency-multiplexed downlink data transmissions, an acknowledgment indication in a semi-static HARQ-ACK codebook to be transmitted to the second device for the downlink data transmission occasion.

公开(公告)号：US20230309101A1

公开(公告)日：2023-09-28

申请号：US18021485

申请日：2021-07-28

Applicant: Nokia Technologies Oy

Inventor： David BHATOOLAUL ,  Volker PAULI ,  Fasil BERHANU TESEMA ,  David NAVRATIL

IPC: H04W72/21 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04L5/0053

Abstract: Techniques of transmitting and receiving HARQ feedback for point to multipoint data packets include using two different PUCCHs for providing ACK/NACK feedback to a sequence of point-to-multipoint (PTM) data packets. For example, when a gNB sends PTM data packets (e.g., as part of a subscription) to subscriber UE's, each UE sends ACK/NACK messages in response over a first PUCCH which has a smaller bandwidth than a conventional PUCCH under which full uplink control information (UCI) may be sent. In some implementations, the ACK/NACK messages are a single bit. In response to a NACK message from a UE, the gNB allocates a second PUCCH to the UE. The UE then send additional details to explain the NACK message. In some implementations, the additional details include an identifier of a missing data (e.g., packet m of n).

公开(公告)号：US20240275526A1

公开(公告)日：2024-08-15

申请号：US18291107

申请日：2021-08-06

Applicant: Nokia Technologies Oy

Inventor： Ugur Baran ELMALI ,  David BHATOOLAUL ,  David NAVRÁTIL ,  Naizheng ZHENG ,  Volker PAULI ,  Athul PRASAD

IPC: H04L1/1812 ,  H04L1/1867

CPC classification number: H04L1/1816 ,  H04L1/1893

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for enhancement of HARQ feedback. The method comprises: upon receipt of data of at least one of a group of services from a second device, generating, at a first device, a Hybrid Automatic Repeat Request acknowledgement (HARQ-ACK) codebook comprising HARQ feedback and identification information for the at least one service, the group of services comprising at least one of multicast and broadcast services (MBSs) and unicast services; and transmitting the HARQ-ACK codebook to the second device. In this way, retransmissions of unicast and multicast services can be accurately scheduled in time, and unnecessary retransmissions can be avoided. In addition, the spectral efficiency and packet loss rate of the communication system can be improved.

公开(公告)号：US20230413295A1

公开(公告)日：2023-12-21

申请号：US18247967

申请日：2020-10-22

Applicant: Nokia Technologies Oy

Inventor： Athul PRASAD ,  David BHATOOLAUL ,  David NAVRÁTIL ,  Naizheng ZHENG ,  Ugur Baran ELMALI ,  Volker PAULI

IPC: H04W72/30 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/30 ,  H04W72/23 ,  H04W72/0453

Abstract: Embodiments of the present disclosure relate to frequency domain resource allocation for multicast traffic. A method comprises: receiving, at a first device and from a core network element, multicast traffic to be scheduled for a second device; generating assistance information for the second device, the assistance information enabling the second device to identify, within a bandwidth part configured for the second device, a frequency domain resource allocated for the multicast traffic; and transmitting the assistance GC information to the second device. The method further comprises: receiving, at the second device, the assistance information from a first device; and determining the frequency domain resource from downlink control information based on the assistance information. In this way, a significant flexibility to schedule multicast traffic can be provided, and a significant complexity reduction to a terminal device can be provided.

公开(公告)号：US20230060839A1

公开(公告)日：2023-03-02

申请号：US17820019

申请日：2022-08-16

Applicant: Nokia Technologies Oy

Inventor： Athul PRASAD ,  David BHATOOLAUL ,  Naizheng ZHENG ,  David NAVRATIL ,  Volker PAULI ,  Ugur Baran ELMALI ,  Matthew BAKER

IPC: H04W72/12 ,  H04L5/00

Abstract: Embodiments of the present disclosure relates to estimating downlink size for a multicast traffic. According to embodiments of the present disclosure, a first device receives downlink control information (DCI) for a multicast traffic. The first device determines field size(s) in the DCI based on one or more parameters which are associated with the field size estimation for the multicast traffic. The first device decodes the DCI based on the determined field sizes(s). In this way, the DCI can be blindly decoded correctly.