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公开(公告)号：US20240348375A1
公开(公告)日：2024-10-17
申请号：US18681364
申请日：2021-08-06
发明人： Athul PRASAD , David BHATOOLAUL , Naizheng ZHENG , David NAVRÁTIL , Volker PAULI , Ugur Baran ELMALI
IPC分类号： H04L1/1822 , H04L1/1829
CPC分类号： H04L1/1822 , H04L1/1864
摘要： 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.
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2.发明公开公开(公告)号：US20240056329A1
公开(公告)日：2024-02-15
申请号：US18258124
申请日：2021-01-17
发明人： Ugur Baran ELMALI , David BHATOOLAUL , David NAVRÁTIL , Naizheng ZHENG , Volker PAULI , Athul PRASAD
IPC分类号： H04L12/18 , H04L1/1812 , H04L5/00 , H04L1/1829
CPC分类号： H04L12/1868 , H04L1/1812 , H04L5/0055 , H04L1/1861
摘要： 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.
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3.发明公开公开(公告)号：US20230309101A1
公开(公告)日：2023-09-28
申请号：US18021485
申请日：2021-07-28
CPC分类号： H04W72/21 , H04L5/0053
摘要： 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).
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公开(公告)号：US20240155311A1
公开(公告)日：2024-05-09
申请号：US18548651
申请日：2021-04-06
发明人： Ugur Baran ELMALI , Volker PAULI , Esa Mikael MALKAMÄKI , Benoist Pierre SEBIRE , David NAVRÁTIL
IPC分类号： H04W4/06 , H04L1/1812 , H04W72/11 , H04W72/12
CPC分类号： H04W4/06 , H04L1/1812 , H04W72/11 , H04W72/12
摘要： 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.
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公开(公告)号：US20230413296A1
公开(公告)日：2023-12-21
申请号：US18248776
申请日：2020-10-20
发明人： Naizheng ZHENG , Volker PAULI , Athul PRASAD , Ugur Baran ELMALI , David NAVRÁTIL , Karol SCHOBER , David BHATOOLAUL
摘要： 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.
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公开(公告)号：US20230389050A1
公开(公告)日：2023-11-30
申请号：US18249761
申请日：2020-10-23
发明人： Athul PRASAD , Volker PAULI , David BHATOOLAUL , David NAVRÁTIL , Naizheng ZHENG , Ugur ELMALI
IPC分类号： H04W72/30
CPC分类号： H04W72/30
摘要： 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.
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公开(公告)号：US20240275526A1
公开(公告)日：2024-08-15
申请号：US18291107
申请日：2021-08-06
发明人： Ugur Baran ELMALI , David BHATOOLAUL , David NAVRÁTIL , Naizheng ZHENG , Volker PAULI , Athul PRASAD
IPC分类号： H04L1/1812 , H04L1/1867
CPC分类号： H04L1/1816 , H04L1/1893
摘要： 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.
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公开(公告)号：US20230413295A1
公开(公告)日：2023-12-21
申请号：US18247967
申请日：2020-10-22
发明人： Athul PRASAD , David BHATOOLAUL , David NAVRÁTIL , Naizheng ZHENG , Ugur Baran ELMALI , Volker PAULI
IPC分类号： H04W72/30 , H04W72/0453 , H04W72/23
CPC分类号： H04W72/30 , H04W72/23 , H04W72/0453
摘要： 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.
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公开(公告)号：US20230060839A1
公开(公告)日：2023-03-02
申请号：US17820019
申请日：2022-08-16
发明人： Athul PRASAD , David BHATOOLAUL , Naizheng ZHENG , David NAVRATIL , Volker PAULI , Ugur Baran ELMALI , Matthew BAKER
摘要： 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.
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公开(公告)号：US20220322355A1
公开(公告)日：2022-10-06
申请号：US17221648
申请日：2021-04-02
摘要： Systems, methods, apparatuses, and computer program products for polling and keep-alive signals for multimedia broadcast multicast service. The method may include receiving a physical downlink control channel order addressed to a group-radio network temporary identifier. The method may also include performing uplink transmission of a signal in response to the physical downlink control channel order.
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