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公开(公告)号：US20230189235A1
公开(公告)日：2023-06-15
申请号：US18165076
申请日：2023-02-06
发明人： Juan ZHENG , Chaojun LI , Xiaolei TIE , Zhihu LUO , Hailong HOU
IPC分类号： H04W72/0453 , H04W72/23
CPC分类号： H04W72/0453 , H04W72/23
摘要： A communication method includes determining, by a terminal device, a first frequency domain resource, and performing a first-type operation on the first frequency domain resource. The first-type operation includes at least one of radio resource management (RRM) measurement, radio link measurement, or receiving first information. The first information is useable to indicate that the terminal device is configured to perform a second-type operation on a second frequency domain resource, and the second-type operation is different from the first-type operation.
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公开(公告)号：US20230156595A1
公开(公告)日：2023-05-18
申请号：US18155881
申请日：2023-01-18
发明人： Weilin QU , Juan ZHENG , Chaojun LI , Zhe JIN
IPC分类号： H04W52/02 , H04B7/0452 , H04L5/00 , H04B7/0404
CPC分类号： H04W52/0212 , H04B7/0452 , H04L5/0051 , H04B7/0404
摘要： A multi-antenna operation mode indication method and an apparatus resolve a problem that increased power consumption and a resource waste are caused because a terminal device still operates in a multi-user multiple-input multiple-output (MU-MIMO) mode by default in a single-port transmission mode. The method includes: a network device sends indication information to a terminal device, to indicate that a multi-antenna operation mode of the terminal device is single-user multiple-input multiple-output (SU-MIMO) or MU-MIMO. The terminal device determines, based on the indication information from the network device, whether a demodulation reference signal (DMRS) port number corresponding to the terminal device and a DMRS port number not corresponding to the terminal device are allocated to another terminal device, to adjust the multi-antenna operation mode.
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公开(公告)号：US20230087902A1
公开(公告)日：2023-03-23
申请号：US17986313
申请日：2022-11-14
发明人： Juan ZHENG , Chaojun LI , Hailong HOU , Yongqiang FEI
摘要： Embodiments of this application relate to the communications field, and provide an information sending and receiving method, an apparatus, and a system, to reduce resource overheads used by a (reduced-capability) terminal device to report a capability parameter. The method is as follows: A terminal device sends first information to a network device, where the first information indicates that the terminal device is a first-type terminal device, a capability parameter corresponding to the first-type terminal device includes a first capability set, the first capability set includes a channel bandwidth supported by the terminal device and a quantity of transmit antennas of the terminal device, the channel bandwidth of the terminal device is less than 100 megahertz, and the quantity of transmit antennas of the terminal device is less than 4. Embodiments of this application are applied to a massive machine-type communications mMTC service scenario or another service scenario of 5G NR.
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公开(公告)号：US20220418007A1
公开(公告)日：2022-12-29
申请号：US17896848
申请日：2022-08-26
发明人： Hailong HOU , Yongqiang FEI , Chaojun LI , Juan ZHENG
IPC分类号： H04W74/08
摘要： Embodiments of this application provide a random access response method and an apparatus. The method includes: RARs associated with one RO are transmitted based on groups, so that a transport block size of RAR data transmitted each time is reduced, and N bits in DCI format 1_0 of CRC are scrambled by using a RA-RNTI to indicate scheduling information of N RAR groups in a PDSCH. Alternatively, DCI format 1_0 of CRC is scrambled by using identifiers of RAR groups, to correspondingly schedule the RAR groups in the PDSCH. According to this application, a problem of a large transport block caused by a large quantity of RARs being transmitted in a PDSCH can be avoided, so that a modulation order or a bit rate is reduced, and demodulation performance of a terminal device is improved.
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公开(公告)号：US20220346014A1
公开(公告)日：2022-10-27
申请号：US17860911
申请日：2022-07-08
发明人： Yongqiang FEI , Juan ZHENG , Hailong HOU , Chaojun LI
摘要： A random access method and an apparatus. In one example: A terminal device receives a first wake-up signal, and then determines N random access channel occasions based on a correspondence between the first wake-up signal and the N random access channel occasions. The terminal device determines a first random access channel occasion in the N random access channel occasions, and sends a random access preamble on the first random access channel occasion. A network device uses, as a reception beam, a beam used to send the first wake-up signal, to receive the random access preamble sent by the terminal device.
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公开(公告)号：US20220200769A1
公开(公告)日：2022-06-23
申请号：US17679970
申请日：2022-02-24
发明人： Juan ZHENG , Chaojun LI
IPC分类号： H04L5/00
摘要： An SRS transmission method and apparatus are provided. The method includes: A terminal device determines a first frequency band, and receives SRS configuration information from a network device, where the SRS configuration information is used to indicate an SRS transmission frequency band. The terminal device determines the SRS transmission frequency band based on the SRS configuration information, where the SRS transmission frequency band is included in the first frequency band. The terminal device transmits an SRS to the network device in the SRS transmission frequency band. A bandwidth of the first frequency band is greater than a maximum channel bandwidth supported by the terminal device. According to the foregoing method, the terminal device can transmit an SRS within a larger frequency resource range, or a bandwidth corresponding to a transmission frequency band of the SRS is more suitable for a terminal device with a low bandwidth capability.
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公开(公告)号：US20220007315A1
公开(公告)日：2022-01-06
申请号：US17480590
申请日：2021-09-21
发明人： Liyan SU , Chaojun LI
摘要： A communication method and a device are provided. The communication method includes: An access network device generates a synchronization signal block SSB, where the SSB includes a first physical broadcast channel PBCH and a second PBCH, the first PBCH carries time-frequency resource position information of first synchronization information, the second PBCH carries time-frequency resource position information of second synchronization information, and a time-frequency resource position of the first synchronization information is different from a time-frequency resource position of the second synchronization information; and the access network device broadcasts the SSB. In embodiments of this application, the SSB may carry PBCHs corresponding to terminal devices of different bandwidth types and/or synchronization information of the terminal devices of different bandwidth types, to satisfy processing requirements of the terminal devices of a plurality of bandwidth types.
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公开(公告)号：US20210022166A1
公开(公告)日：2021-01-21
申请号：US17062313
申请日：2020-10-02
发明人： Liyan SU , Chaojun LI , Zhihua TANG
摘要： Embodiments of this application provide a resource allocation method and apparatus. The method includes: receiving resource allocation information, where the resource allocation information includes a first resource indicator value; and determining, based on the first resource indicator value, a first resource allocation scheme corresponding to the first resource indicator value, where the first resource allocation scheme belongs to L resource allocation schemes, the L resource allocation schemes include L1 resource allocation schemes, and a start location of a resource corresponding to each of the L1 resource allocation schemes is a resource unit other than an (S+1)th resource unit in Q consecutive resource units in a system bandwidth, where S is an integer multiple of X. Therefore, a waste of system resources can be reduced.
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公开(公告)号：US20190261332A1
公开(公告)日：2019-08-22
申请号：US16400587
申请日：2019-05-01
发明人： Chaojun LI , Jiafeng SHAO , Yan CHENG
摘要： A method includes: determining, by a terminal device, a first search space and a second search space, where the first search space is a part of the second search space; detecting, by the terminal device, at least one piece of first-type downlink control information (DCI) in the first search space; and detecting, by the terminal device, at least one piece of second-type DCI in the second search space, where the first-type DCI is used to schedule data transmission with a first time length, the second-type DCI is used to schedule data transmission with a second time length, and the first time length is less than the second time length.
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10.发明申请公开(公告)号：US20180343667A1
公开(公告)日：2018-11-29
申请号：US16052634
申请日：2018-08-02
发明人： Chaojun LI , Jiafeng SHAO , Sha MA
摘要： A downlink control information (DCI) detection method is provided, including: determining, by a terminal device, at least one of a first search space and a second search space, where the first search space is in a first time unit of a first time unit set, the second search space is in a second time unit of a second time unit set, the first time unit set and the second time unit set are subsets of the NT time units included in a time window T, NT is an integer and NT≥2, the first time unit set and the second time unit set overlap; and detecting, by the terminal device, at least one piece of DCI in the at least one search space. According to the foregoing method, a search space can be flexibly configured and DCI can be flexibly transmitted.
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