Patents by Inventor Naizheng ZHENG
Naizheng ZHENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250047614Abstract: Example embodiments of the present disclosure relate to a device, method, apparatus and computer readable storage medium for hybrid automatic repeat request (HARQ) feedback for adjustment of contention window size for communication in an unlicensed band. In example embodiments, if it is determined that a failure of transmission in an unlicensed occurs, the device determines a cause of the failure of the transmission is determined based on received information associated with a transmission collision. Then, the device adjusts a size of a contention window for a listen-before-talk procedure.Type: ApplicationFiled: December 9, 2021Publication date: February 6, 2025Inventors: Ling YU, Torsten WILDSCHEK, Nuno Manuel KIILERICH PRATAS, Vinh VAN PHAN, Yong LIU, Tao TAO, Naizheng ZHENG
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Publication number: 20250039925Abstract: 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.Type: ApplicationFiled: December 14, 2021Publication date: January 30, 2025Inventors: Nuno Manuel KIILERICH PRATAS, Ling YU, Torsten WILDSCHEK, Vinh VAN PHAN, Yong LIU, Tao TAO, Naizheng ZHENG
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Publication number: 20240406844Abstract: Methods and apparatus for multicast services are provided. In a method a resource message is received on a control channel indicating a first search space type and assistance information for the first search space type. It is determined based on the assistance information that a second search space type is to be applied for monitoring of a multicast search space. Monitoring of the multicast search space can be provided according to the second search space type.Type: ApplicationFiled: September 29, 2021Publication date: December 5, 2024Inventors: Athul PRASAD, David BHATOOLAUL, Naizheng ZHENG, David NAVRATIL, Ugur Baran ELMALI
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Publication number: 20240396759Abstract: 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.Type: ApplicationFiled: September 27, 2021Publication date: November 28, 2024Inventors: Ugur Baran ELMALI, Volker PAULI, Naizheng ZHENG, David BHATOOLAUL, Athul PRASAD, David NAVRATIL
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Publication number: 20240381388Abstract: Apparatuses and methods are provided to enable a receiver device monitoring a control channel configured for carrying information indicating transmission types of point-to-multipoint services detect a point-to-multipoint service of interest. The device can further detect an indication of a transmission type associated with the point-to-multipoint service of interest. In response a request can be sent for a configuration enabling reception of the indicated transmission type of the point-to-multipoint service of interest on a point-to-multipoint traffic channel. In the absence of said further detecting, the device can refrain from sending the request for the configuration for reception of the transmission type of the point-to-multipoint service.Type: ApplicationFiled: October 19, 2021Publication date: November 14, 2024Inventors: Naizheng ZHENG, David NAVRATIL, Jarkko Tuomo KOSKELA, Athul PRASAD, Ugur Baran ELMALI, David BHATOOLAUL
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Publication number: 20240348375Abstract: 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.Type: ApplicationFiled: August 6, 2021Publication date: October 17, 2024Inventors: Athul PRASAD, David BHATOOLAUL, Naizheng ZHENG, David NAVRÁTIL, Volker PAULI, Ugur Baran ELMALI
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Publication number: 20240334343Abstract: Disclosed are methods for power control on negative acknowledgement transmission.Type: ApplicationFiled: July 28, 2021Publication date: October 3, 2024Inventors: Volker PAULI, David BHATOOLAUL, Naizheng ZHENG, Ugur Baran ELMALI, Athul PRASAD, David NAVRÁTIL
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Publication number: 20240306198Abstract: According to embodiments of the present disclosure, a first device determines one or more second devices to share a channel occupancy time (COT) for a sidelink transmission over an unlicensed spectrum bands. The first device transmits the information which indicates the COT to be shared by the first device and the one or more second devices. The second device determines a transmission gap within the COT and performs a LBT/CCA on the unlicensed spectrum bands based on the determined gap. In this way, it achieves sharing the COT among SL devices. It can improve spectrum efficiency and avoid resource waste.Type: ApplicationFiled: June 22, 2021Publication date: September 12, 2024Inventors: Ling YU, Vinh VAN PHAN, Nuno Manuel KIILERICH PRATAS, Yong LIU, Tao TAO, Naizheng ZHENG, Lianghai JI
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Publication number: 20240275526Abstract: 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.Type: ApplicationFiled: August 6, 2021Publication date: August 15, 2024Inventors: Ugur Baran ELMALI, David BHATOOLAUL, David NAVRÁTIL, Naizheng ZHENG, Volker PAULI, Athul PRASAD
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Publication number: 20240259225Abstract: Example embodiments of the present disclosure relate to polling a device for multicast broadcast service interest indication. A first device receives, from a second device, a physical downlink control channel (PDCCH) order addressed by a paging radio network temporary identifier for the first device. The PDCCH order comprises a request for an indication that at least one multicast broadcast service is to be received by the first device. The first device transmits, to the second device, a random access preamble associated with the at least one multicast broadcast service as a response to the request. Through this solution, the first device that monitors the single PDCCH order may have less power consumption.Type: ApplicationFiled: May 11, 2021Publication date: August 1, 2024Inventors: Naizheng ZHENG, David NAVRÁTIL, Athul PRASAD, Ugur Baran ELMALI, David BHATOOLAUL
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Publication number: 20240259823Abstract: Example embodiments of the present disclosure relate to sidelink (SL) transmission enhancement. A first device determines a channel occupancy time (COT) to be shared by the first device and at least one second device for transmissions on a shared radio frequency band; selects a first time slot during the COT for a transmission; and performs the transmission in the first time slot by extending the transmission to a first guard period of the first time slot or to a second guard period of a second time slot prior to the first time slot during the COT. By doing so, a channel access procedure requiring a smaller time gap between transmissions can be selected and performed, which can thus improve the flexibility of channel access procedures for SL transmission in the shared frequency band.Type: ApplicationFiled: May 19, 2021Publication date: August 1, 2024Inventors: Nuno Manuel KIILERICH PRATAS, Tao TAO, Ling YU, Vinh VAN PHAN, Yong LIU, Naizheng ZHENG
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Publication number: 20240251410Abstract: Embodiments of the present disclosure relate to a short control signaling transmission for sidelink communication in an unlicensed spectrum. According to one aspect of the present disclosure, if a control signaling is to be transmitted to a second device via a short control signaling transmission, a first device determines whether the short control signaling transmission is available based on at least information related to a counter, the counter being used for counting occasions within a period for the short control signaling transmission at a sidelink interface. If the short control signaling transmission is available, the first device transmits the control signaling to the second device on a first resource configured for the short control signaling transmission. In this way, constraints for the usage of the short control signaling transmission can be satisfied, and a reliable transmission of sidelink control signaling in the unlicensed spectrum can be achieved.Type: ApplicationFiled: June 1, 2021Publication date: July 25, 2024Inventors: Yong LIU, Tao TAO, Naizheng ZHENG, Dong LI
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Publication number: 20240236989Abstract: This disclosure presents solutions for allowing a transmitter of multicast broadcast services (MBS) to select a mapping algorithm for mapping synchronization signal block (SSB) beams to slots with PDCCH monitoring occasions (MOs) of a multicast control channel (MCCH) window duration. The transmitter can be a communication node. In some example embodiments, the transmitter can receive assistance information from one or more UEs and utilize that assistance information to determining the mapping algorithm to utilize. The transmitter can determine whether across MCCH window duration mapping is enabled or disabled. The transmitter can determine the pattern of repetition of SSB beams when there are more slots with PDCCH MOs in the MCCH window duration than there are SSB beams in a set of SSB beams where each SSB beam has at least one UE interested at MBS. The SSB beam mapping can be communicated to MBS receivers, allowing them to optimize operations by listening to their respective appropriate monitoring occasions.Type: ApplicationFiled: May 11, 2021Publication date: July 11, 2024Inventors: Naizheng ZHENG, David NAVRATIL, Jarkko Tuomo KOSKELA
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Publication number: 20240205709Abstract: Systems, methods, apparatuses, and computer program products for common frequency resource, control resource set configurations, and common frequency resource switching. The method may include receiving, from a network element, a configuration for monitoring at least one broadcast services on a communication resource. The method may also include monitoring the at least one broadcast service on the communication resource based on the configuration. According to certain example embodiments, the communication resource may be a subset of an initial bandwidth part, or the communication resource may include an initial bandwidth part as a subset of the communication resource.Type: ApplicationFiled: May 12, 2021Publication date: June 20, 2024Inventors: Naizheng ZHENG, David NAVRÁTIL, Athul PRASAD, Ugur Baran ELMALI, Volker PAULI, David BHATOOLAUL, Jarkko Tuomo KOSKELA
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Publication number: 20240188137Abstract: Embodiments of the present disclosure relate to a method, device, apparatus and computer readable medium for sidelink transmission. According to embodiments of the present disclosure, a first device determines a target transmission start position from a set of candidate transmission starting positions in a sidelink slot based on an access level of a sidelink transmission to be performed. The first device performs a LBT before the target transmission starting position. If the LBT is successful, the first device performs the sidelink transmission from the target transmission starting position. In this way, it enables the use on Mode 2 in shared/unlicensed spectrum, while addressing the issues of un-sensed (not detected) SPS transmissions due to LBT failure as well as making mode 2 more robust towards LBT failures due to other coexisting systems.Type: ApplicationFiled: April 7, 2022Publication date: June 6, 2024Inventors: Nuno Manuel KIILERICH PRATAS, Tao TAO, Torsten WILDSCHEK, Naizheng ZHENG
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Publication number: 20240129006Abstract: Disclosed are example embodiments of methods, apparatuses and systems supporting beam diversity for multimedia broadcast multicast services. A method may comprise receiving information of one or more beams and abeam-specific repetition pattern for at least one of the one or more beams for transmission of a service from a network device, and receiving the service on the at least one of the one or more beams based on the beam-specific repetition pattern.Type: ApplicationFiled: May 13, 2021Publication date: April 18, 2024Inventors: Hua CHAO, Yonggang WANG, Naizheng ZHENG
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Publication number: 20240106607Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for semi-static scheduling of multicast broadcast service traffic. In example embodiments, at least one of enabling, disabling or modification of a semi-persistent scheduling configuration is determined for a group of devices on a bandwidth part for multicast broadcast service traffic. The at least one of enabling, disabling or modification of the semi-persistent scheduling configuration is indicated to the group of devices.Type: ApplicationFiled: January 14, 2021Publication date: March 28, 2024Inventors: Athul PRASAD, David BHATOOLAUL, Naizheng ZHENG, David NAVRÁTIL, Volker PAULI, Ugur Baran ELMALI
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Publication number: 20240056329Abstract: 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.Type: ApplicationFiled: January 17, 2021Publication date: February 15, 2024Inventors: Ugur Baran ELMALI, David BHATOOLAUL, David NAVRÁTIL, Naizheng ZHENG, Volker PAULI, Athul PRASAD
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Publication number: 20240056776Abstract: This disclosure presents methods and processes to allow a user equipment (UE) to map a hybrid automatic retransmission request-acknowledgement (HARQ-ACK) feedback to one or more HARQ-ACK sub-codebooks for received services. The one or more HARQ-ACK sub-codebooks can be concatenated into one HARQ-ACK codebook and then communicated to a communication node, when those services use a HARQ-ACK feedback that is scheduled for the same time instance. Various methods can be used for the concatenation order depending on the number of multicast and broadcast services (MBS) for which HARQ feedback is to be provided, and depending on whether HARQ-ACK feedback is to be sent for unicast services at the scheduled time instance. The concatenation order can utilize an increasing order or a decreasing order of the concatenation order parameters.Type: ApplicationFiled: January 18, 2021Publication date: February 15, 2024Inventors: Ugur Baran ELMALI, David BHATOOLAUL, David NAVRÁTIL, Naizheng ZHENG, Volker PAULI, Athul PRASAD
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Publication number: 20230413296Abstract: 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.Type: ApplicationFiled: October 20, 2020Publication date: December 21, 2023Inventors: Naizheng ZHENG, Volker PAULI, Athul PRASAD, Ugur Baran ELMALI, David NAVRÁTIL, Karol SCHOBER, David BHATOOLAUL