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公开(公告)号：US20200295882A1
公开(公告)日：2020-09-17
申请号：US16887702
申请日：2020-05-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yi WANG , Shichang ZHANG , Yingyang LI
IPC: H04L1/18
Abstract: A method performed by a user equipment (UE) in a wireless communication system includes receiving, from a base station (BS), code block group (CBG) information via radio resource control (RRC) signaling; identifying a physical downlink shared channel (PDSCH) of a plurality of PDSCHs belonging to a first PDSCH set or a second PDSCH set, based on the CBG information; determining a first hybrid automatic repeat request acknowledgement/negative acknowledgement (HARQ-ACK/NACK) codebook for the first PDSCH set and a second HARQ-ACK/NACK codebook for the second PDSCH set; and transmitting HARQ-ACK/NACK information generated by connecting the first HARQ-ACK/NACK codebook and the second HARQ-ACK/NACK codebook.
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公开(公告)号：US20200153684A1
公开(公告)日：2020-05-14
申请号：US16742364
申请日：2020-01-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yi WANG , Yingyang LI , Chengjun SUN
Abstract: Embodiments of the present disclosure provide a method and an apparatus for configuring uplink and downlink carriers. In the embodiments of the present disclosure, the UE determines according to received uplink and downlink carrier configuration signaling, the pairing between the uplink and downlink carriers, and/or a timing reference downlink carrier for the uplink, and/or a pathloss reference cell for the uplink. Thus, the uplink and downlink carriers may be configured more flexibly. Further, through the configuration of the reference downlink carrier for the uplink timing and the uplink power control, the carrier aggregation performance and that on the unlicensed band may be supported more effectively, so as to improve the performance of the LTE system.
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公开(公告)号：US20200084776A1
公开(公告)日：2020-03-12
申请号：US15746959
申请日：2016-08-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shichang ZHANG , Yi WANG , Yingyang LI
Abstract: The present invention provides a control information transmission resource determining method in a D2D communication. In this method, a location of a subframe used for a SA transmission is determined in a SA resource pool by a TRP. In the subframe, a frequency domain resource used for the SA transmission occupies a part of symbols or PRBs in the entire subframe, and a location of the frequency domain resource is determined by a central control node assigning way, a randomly selecting way, a resource-hopping way or a mapping way between a time domain resource and a frequency domain resource. According to the method above, data transmission delay can be effectively reduced, data transmission reliability can be ensured, and V2X communication requirements can be achieved by small changes in a current system.
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公开(公告)号：US20200053742A1
公开(公告)日：2020-02-13
申请号：US16659085
申请日：2019-10-21
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang LI , Chengjun SUN
Abstract: Disclosed is a method for communication by a user equipment in a wireless communication system, including receiving configuration information from a base station, performing measurement of a downlink channel based on the configuration information, identifying a channel quality indicator (CQI) table among a plurality of CQI tables including a first CQI table which includes CQI indices related to a 256 quadrature amplitude modulation (QAM) scheme and a second CQI table which does not include a CQI index related to the 256 QAM scheme, identifying the CQI index in the identified CQI table based on the measurement, and reporting the identified CQI index to the base station, wherein each of the plurality of CQI tables includes CQI indices indicating modulation schemes and code rates, and wherein a 64 QAM scheme with a highest coding rate indicated in the second CQI table is absent in the first CQI table.
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公开(公告)号：US20190313405A1
公开(公告)日：2019-10-10
申请号：US16308715
申请日：2017-07-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yingyang LI , Shichang ZHANG , Yi WANG
Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure may be applied to intelligent services based on the 5G communication technology and an Internet of Things (IoT)-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application provides a data transmission method. A first device senses scheduling assignment (SA) and received power of another device, and/or senses a total received energy of all of subframes/sub-bands of the first device. The first device selects or re-selects resources according to the sensing result. The first device transmits data using the resources. The present application also provides a data transmission device. The data transmission method and device can select optimal resources for data transmission to avoid impacts of collisions on data transmission, and can adjust system running state in case of congestion to improve system performance as much as possible.
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Patent Agency Ranking
公开(公告)号：US20190288802A1
公开(公告)日：2019-09-19
申请号：US16429681
申请日：2019-06-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Shichang ZHANG , Yingyang LI , Jingxing FU , Yi WANG , Chengjun SUN , Lixiang XU
IPC: H04L1/18
Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.
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公开(公告)号：US20190200389A1
公开(公告)日：2019-06-27
申请号：US16329619
申请日：2017-09-29
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang LI , Shichang ZHANG , Yi WANG , Qi LI
CPC classification number: H04W74/0816 , H04W16/28 , H04W72/0453 , H04W72/1231 , H04W74/0808
Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments of the present disclosure provides method for transmitting signals on an Unlicensed Frequency Band (UFB), comprising: performing, by a transmitting node, a first type of Listen Before Talk (LBT) on a direction i; transmitting, by the transmitting node, signals on a direction j after passing the first type of LBT, wherein the direction i is omnidirectional, or one or multiple beam directions corresponding to the direction j. The technical scheme of the present disclosure may be applied to high-frequency-band signal transmission and LBT and avoid interference with other nodes on the UFB.
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公开(公告)号：US20190159143A1
公开(公告)日：2019-05-23
申请号：US16099008
申请日：2017-05-15
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang LI , Yi WANG , Shichang ZHANG
Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application provides a method for transmitting uplink information, which includes the following: a UE detects control information, i.e., UL-Grant for scheduling uplink data transmissions from a base station; determines according to the control information, the number of PRBs resource allocated by the base station, determining a maximum transmission power allowed in the current sub-frame, determines an uplink transmission power of the UE; executes an LBT according to UL-Grant configurations, and starts an uplink data transmission after the LBT is successful. By adopting the method of the present disclosure, the total uplink transmission power of an entire cell in one sub-frame is controlled, so as to realize coexistence with other devices. Further, by reasonably setting an LBT time period and power increase transition time, the probability of collisions among devices is reduced.
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79.发明申请公开(公告)号：US20190069200A1
公开(公告)日：2019-02-28
申请号：US16080209
申请日：2017-04-03
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Shichang ZHANG , Yi WANG , Yingyang LI
Abstract: The application provides a method for transmitting a control channel and a data channel in V2X communication, comprising the following steps of: first, determining, by a UE, resource pool configurations for a PSCCH and a PSSCH and an association relationship between the both; then, determining, by the UE and in PSCCH resource pools or a subset of PSCCH resource pools, PSCCH resources required by one or multiple times of PSCCH transmission, and further determining, in PSSCH resource pools associated with the PSCCH resource pools or in a subset of PSSCH resource pools associated with the subset of PSCCH resource pools, time-frequency domain resources for PSSCH transmission; and finally, transmitting, by the UE, corresponding information on the determined PSCCH and PSSCH resources. By the method provided by the present application, the requirement on low time delay of V2X services can be met, and the implementation complexity of a UE can be effectively controlled.
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公开(公告)号：US20180332597A1
公开(公告)日：2018-11-15
申请号：US16031317
申请日：2018-07-10
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yingyang LI , Chengjun SUN
Abstract: Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.
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