Huawei Technologies Co., Limited

Jiafeng Shao

Lei Guan

Yongxia Lyu

Sha Ma

Chaojun Li

Bingyu Qu

Shengyu Li

Xinghua Song

Chuanfeng He

Ruixiang Ma

Dan Hu

Qiang Li

Zuomin Wu

Xiaodong Yang

Wei Quan

Jinhuan Xia

Bingzhao Li

Lixia Xue

Yan Cheng

Jian Yu

Hongjian Yang

Yunji Zhang

Yi Bin Wang

Yan Chen

Jingyuan Sun

Yuan Yuan Li

Xiuqiang Xu

Xueli Ma

Yuan Li

Yi Wang

Yang Ding

A network device determines downlink bandwidth configuration information corresponding to a terminal device; the network device sends a first physical broadcast channel to the terminal device in a plurality of cell acquisition subframes based on the downlink bandwidth configuration information, where a time interval between every two adjacent cell acquisition subframes in the plurality of cell acquisition subframes is greater than or equal to 30 ms. When a bandwidth configuration value corresponding to the downlink bandwidth configuration information is greater than or equal to a first threshold, the plurality of cell acquisition subframes in which the first physical broadcast channel is sent include at least one first cell acquisition subframe. At least five symbols of the first physical broadcast channel are transmitted in the first cell acquisition subframe.

Physical broadcast channel transmission method and related apparatus

An uplink reference signal transmission method, a user terminal, and a base station. The uplink reference signal transmission method includes receiving, by a user terminal, first higher layer signaling indicating at least one uplink reference signal symbol group, where the at least one uplink reference signal symbol group is in 14 symbols or 12 symbols, and where each uplink reference signal symbol group of the at least one uplink reference signal symbol group includes at least one time unit, receiving, by the user terminal, first control information using a physical channel, wherein the first control information indicates an uplink reference signal symbol group corresponding to the user terminal, and sending, by the user terminal, at least one uplink reference signal in the uplink reference signal symbol group corresponding to the user terminal.

Uplink reference signal transmission method, user terminal, and base station

This application provides a method for multiplexing uplink control information, and relates to the wireless communications field. When a resource of a first uplink control channel that carries first HARQ-ACK information does not overlap a resource of a second uplink control channel that carries second HARQ-ACK information in time domain, but a resource of a third uplink control channel that carries an SR/CSI overlaps both the resource of the first uplink control channel and the resource of the second uplink control channel in time domain, a base station and UE determine, based on a format of the first uplink control channel, a format of the second uplink control channel, and a format of the third uplink control channel, that third HARQ-ACK information and first UCI are multiplexed for transmission, where the third HARQ-ACK information is the first HARQ-ACK information or the second HARQ-ACK information.

Method for multiplexing uplink control information and apparatus

This application provides an information transmission method and apparatus. A terminal receives downlink control information (DCI), wherein a format of the DCI corresponds to a time domain resource set, the time domain resource set comprises first time domain resource. The terminal determines the first time domain resource from the time domain resource set based on the format of the DCI and second information, wherein the second information is carried in the DCI, and the second information indicates the index of the first time domain resource in the time domain resource set. And the terminal performs information transmission on the first time domain resource and through a physical channel.

Information transmission method and apparatus

A method is provided to improve resource utilization efficiency of an uplink control channel carrying feedback information, including: a terminal device receives one or more downlink channels carried in one or more first time units, which belong to a time unit set; determines a second time unit for carrying feedback information corresponding to the downlink channels according to a first association relationship between the time unit set and the second time unit; and sends uplink control information including a determined first codebook in the second time unit. When a downlink channel is received in first time units that belong to a subset of the time unit set, and there is a second association relationship between the subset of the time unit set and the second time unit, the first codebook includes only feedback information corresponding to the downlink channel carried in the first time units in the subset.

Feedback information transmission method and communication device

The present disclosure relates to transport block size (TBS) determining methods and apparatus. One example TBS determining method includes determining a second intermediate variable based on a determined TBS index, a frequency domain resource occupied by a first broadcast channel, and a second table, and determining a TBS based on the second intermediate variable and a scale factor, where the scale factor is greater than 1.

Method and apparatus for determining a transport block size (TBS)

This application provides a slot format indication method and a communication apparatus. The method includes: receiving a slot format index, where the slot format index is used to indicate a row in a slot format table, and the row in the slot format table is used to indicate symbol attributes respectively corresponding to at least 12 symbols, and the symbol attribute includes a location of an uplink symbol U, a downlink symbol D, or a flexible symbol F; and determining a slot format of an extended cyclic prefix based on the slot format index, where the slot format of the extended cyclic prefix includes a downlink symbol D, and at least one uplink symbol U and/or at least one flexible symbol F.

Slot format indication method and communication apparatus

This application provides a method for determining a correspondence between a transport block and a codeword, a related device, and a system. The method includes: A terminal device receives first downlink control information (DCI), where the first DCI is used to indicate the terminal device to receive a first transport block on a first time-frequency resource; and the terminal device determines, based on first information, that the first transport block is mapped to a first codeword, where the first information includes at least one of the following: first search space in which the first DCI is located, a first DCI format corresponding to the first DCI, a first radio network identifier (RNTI) used for scrambling the first DCI, or a first bit field included in the first DCI.

Correspondence between transport block and codeword, related device, and system

A method, and related apparatuses are disclosed, to provide an MCS corresponding to a lower code rate. The communication method includes: sending a first CQI number to a network device, wherein the first CQI number is determined based on a first CQI table; and receiving an MCS number in a first MCS table from the network device, wherein the first MCS table comprises an entry that is not comprised in the first CQI table, and at least one entry whose modulation scheme is 64QAM in the first CQI table, wherein a BLER corresponding to the first CQI table is 10e-5, and values obtained by multiplying code rates by 1024 in the first CQI table comprise 30 and 50.

Communication method, MCS receiving method, MCS notification method, and device

Embodiments of this application provide a codebook processing method and apparatus, and relate to the field of communication technologies. The method is applied to a terminal device, and the method includes: obtaining a transmission parameter corresponding to a first hybrid automatic repeat request HARQ codebook set, where the first HARQ codebook set includes a first HARQ codebook, the first HARQ codebook includes HARQ information corresponding to M first channels, M is an integer, and the transmission parameter corresponding to the first HARQ codebook set is greater than a target threshold; and generating a second HARQ codebook based on the first HARQ codebook, where a quantity of bits of the second HARQ codebook is less than a quantity of bits of the first HARQ codebook, or deleting the first HARQ codebook from the first HARQ codebook set.

Codebook processing method and apparatus

This application discloses a communications method and apparatus. The method includes: obtaining one or more candidate time domain resources for transmitting a reference signal in one or more time units; and receiving downlink control information, where the downlink control information includes first indication information and transmission information of a first channel, and the first indication information is used to indicate different situations about time domain reference signal resources in the one or more time units. A network device can accurately indicate a flexibly configured time domain resource for transmitting a reference signal by using relatively low overheads, and a terminal device can accurately determine information about the flexibly configured time domain reference signal resource, thereby improving system transmission efficiency.

Communications method and apparatus

A communications method, and apparatus are provided, to reduce a transmission latency when a plurality of HARQ-ACKs are transmitted in one time unit. The method includes: determining, in N groups of time-frequency resources based on the grouping relationship, the igroup of time-frequency resources corresponding to a first parameter related to the first DCI, receiving first DCI, and determining a first uplink channel that carries a first HARQ-ACK on a first time-frequency resource in the igroup of time-frequency resources, where the grouping relationship represents a correspondence between a first parameter and N groups of time-frequency resources, the N groups of time-frequency resources are obtained by grouping time-frequency resources in one time unit, each group of time-frequency resources corresponds to one or more first parameters, and the first parameter is related to DCI, a time-frequency resource in each group of time-frequency resources is for an uplink channel carries a HARQ-ACK.

Communications method, apparatus, and device

This application provides an information processing method and a communications apparatus. In embodiments of this application, when a time-frequency resource, for a first DMRS, indicated by first information overlaps a time-frequency resource, for a second DMRS, indicated by second information, but another parameter indicated by the first information is different from that indicated by the second information, a terminal device may discard the second information, to avoid a behavior error or behavior unpredictability of the terminal device. A parameter indicated by each of the first information and the second information includes at least one of the following parameters: bandwidth part indication information, antenna port information, and DMRS sequence initialization information.

Information processing method and communications apparatus

This application provides a method and an apparatus for sending an SRS. When receiving first indication information indicating to send an SRS, a terminal device may determine a first time interval in a plurality of candidate first time intervals, where the first time interval is used to determine whether the first indication information is valid, and the terminal device may send the SRS based on the first time interval.

Growing community of inventors

Beijing, China

Jiafeng Shao