Huawei Technologies Co., Limited

Xingqing Cheng

Zheng Yu

Zhiheng Guo

Lei Wan

Xinqian Xie

Yajun Zhao

Yang Li

Jian Wang

Zuomin Wu

Lei Gao

Hong Wang

Qiang Wu

Jianguo Wang

Wei Sun

Chao Luo

Jing Han

Yan Cheng

Qiming Li

Li Chai

Weiliang Zhang

Yinghui Yu

Yongxing Zhou

Lei Guan

Qiang Li

Hao Wang

Jianghua Liu

Jian Zhang

Yi Bin Wang

Xinghua Song

Liang Xia

Jun Li

Leiming Zhang

Anjian Li

Zhe Jin

Xiaotao Ren

Hui Zhang

Fang Nan

Yue Zhao

Wenping Bi

Yongqiang Fei

Mingyu Zhou

Hai Shan Wu

Jianbing Yang

Ningbo Zhang

Yubo Yang

Jinhuan Xia

Yi Long

Xizeng Dai

Weiwei Song

Yiling Wu

Xiang Mi

Hang Liu

Yongqiang Gao

Deping Liu

Zhengwei Gong

Qi S Wang

Zhihu Luo

Yan Wang

Li Chen

Ming Zhang

Jiezuo Zhu

Zhao Zhao

Yi Wang

Long Qin

Lili Jin

Xinwei Zhi

Xiangsheng Guan

Rong Li

An access method and apparatus, and a communications system is provided One example method includes: The network control apparatus sends access configuration information, where the access configuration information configures an access manner of the at least one second apparatus, and the access manner includes a first access manner or a second access manner. A second apparatus in the at least one second apparatus sends access information of the second apparatus to the network control apparatus based on the access configuration information, where the access information requests access. The network control apparatus receives the access information from the second apparatus.

Access method and apparatus, and communications system

In an advertising method, a first device generates a first signal, where a modulation type of the first signal is PSK modulation. The first signal sequentially includes a sequence part, a first part, and a second part. The sequence part includes at least one of a predefined sequence, a predefined signal, a preconfigured sequence, and a preconfigured signal. The first part includes first control information encoded by using a polar code. The second part includes first advertisement information. The first device sends the first signal on a first advertisement dedicated frequency hopping channel.

Advertising method and communication device

An information transmission method and apparatus, applied to the communication field, and in particular, to the short-range communication field, for example, a vehicle-mounted wireless communication system are provided. The method includes: A first node receives a first MCS index from a second node. The first MCS index corresponds to a first modulation mode. The first node receives data from the second node or sends data to the second node based on the first MCS index. A first MCS information subset in which the first MCS index is located belongs to a predefined MCS information set including 32 MCS information subsets.

Information transmission method and apparatus based on a list of modulation coding scheme

Example reference signal transmission methods and apparatus are described. One example method includes that a first node maps a reference signal to a first transmission resource and sends the reference signal. The first transmission resource is included in a second transmission resource used by the first node to send data, and the second transmission resource includes a first symbol and at least one subcarrier corresponding to the first symbol. The first transmission resource includes at least one of an Msubcarrier or an N-to-last subcarrier in the at least one subcarrier corresponding to the first symbol, and M and N are preset, specified in a protocol, or configured. The reference signal is used to determine phase information of a channel.

Reference signal transmission method and apparatus

Embodiments of this application provide a resource indication method and a communication device. The resource indication method includes: A first communication device receives first information sent by a second communication device, where the first information is used to indicate a first resource pattern and indicate a reserved resource determined by using the first resource pattern, the first resource pattern is used to determine a position corresponding to each of N resource sets, and N is a positive integer greater than or equal to 1. The first communication device determines reserved resource based on the positions corresponding to the N resource sets and indicated by the first resource pattern, where the reserved resource is a resource unavailable to the first communication device. The first communication device determines not to transmit a signal by using the reserved resource.

Resource indication method and communication device

A communication method includes jointly sending first data to a first communication device in n first time domain resources, where the n first time domain resources respectively belong to n first time units, where relative positions of the n first time domain resources in the n first time units are the same, where n is an integer greater than or equal to 2, where the n first time domain resources are included in a second time domain resource, and where the second time domain resource is a first periodic resource.

Communication method and communication device

This application provides an information processing method and a communications device. An information processing method includes: a first communications device receives first information from a second communications device. The first communications device determines, based on the first information, that a start location of a first time window is a K1time unit after a start location of a first resource or the start location of the first time window is a K2time unit after an end location of the first resource. The first resource is a resource used by the first communications device to transmit data, and K1 and K2 are positive integers. The first communications device monitors, based on the determined start location of the first time window, control information sent by the second communications device.

Information processing method and communications device

An information processing method, a terminal device, and a network device are provided. In one method, a first bit in downlink control information includes two bits, a bit status of the first bit may belong to a first state set or may be a second state, and a terminal device may perform multi-TB scheduling or single-TB scheduling based on the first bit. When the bit status of the first bit belongs to the first state set, the first state set is {01, 10, 11}, N=4, and the downlink control information includes a first field, the bit status of the first bit can be used to determine a quantity L of TBs scheduled by the downlink control information, and a bit status of five bits of the first field can be used to determine HARQ process numbers of the L TBs and NDI information of the L TBs.

Information processing method, terminal device, and network device

Embodiments of this application provide a communication method and device. The method includes: A first device determines first control information, where the first control information includes first indication information and second indication information, where the first indication information is used to indicate a state of preconfigured-resource transmission, and the state includes successful transmission, unsuccessful transmission, scheduling retransmission, or preconfigured-resource retransmission; and the second indication information is used to indicate whether the first device transmits first information, and the first information includes higher layer data and/or preconfigured uplink resource reconfiguration information. The first device sends the first control information to a second device. According to the method and device provided in the embodiments of this application, a network coverage capability can be improved, and the method and device may be applied to the internet of things, for example, MTC, IoT, LTE-M, or M2M.

Communication method and device

A short-distance communication method includes: obtaining at least one piece of code data; sending a scheduling type indication and a data type indication to a second device, where the scheduling type indication indicates that the at least one piece of code data includes initially transmitted data, retransmitted data, or initially transmitted data and retransmitted data, and the data type indication indicates location information and/or an amount of a part or all of the at least one piece of code data; and sending the at least one piece of code data to the second device.

Short-distance communication method, apparatus, and system

Embodiments of this application provide a solution for network and terminal devices that have inconsistent understandings of retransmission scheduled by using downlink control information (DCI). The solution includes: A network device sends first DCI to a terminal device, and the terminal device receives the first DCI from the network device, where the first DCI includes a first field and a second field, the first field indicates that a retransmitted transport block (TB) exists in a TB scheduled by using the first DCI, and the second field indicates an index of a retransmitted first TB in the TB scheduled by using the first DCI; and the terminal device receives the retransmitted first TB from the network device based on the first field and the second field; or the terminal device sends the retransmitted first TB to the network device based on the first field and the second field.

Communication method, apparatus, and system

A communication method includes: a first device determines first control information, where the first control information carries first information, and the first information is used to indicate emergency information; and the first control information is format-3 control information, format-3A control information, format-6-0A control information, format-6-0B control information, format-6-1A control information, or format-6-1B control information; the first device sends the first control information to a second device; and the first device sends the emergency information to the second device. The method expands coverage of a network, and may be applied to an internet of things (IoT), for example, machine type communication (MTC), a long term evolution-machine (LTE-M), or machine-to-machine (M2M).

A physical random access channel enhanced transmission method, a network device, and a terminal are disclosed, where implementation of the terminal is used as an example, and the terminal includes: a processor, configured to determine level information of physical random access channel PRACH enhanced transmission; and to determine a first characteristic parameter that is of PRACH enhanced transmission and that is related to the determined level information of PRACH enhanced transmission, where the first characteristic parameter includes transmit power and a preamble format; and a transmitter, configured to perform PRACH enhanced sending according to the first characteristic parameter determined by the processor.

Physical random access channel enhanced transmission method, network device, and terminal

A communication method and apparatus are provided. A terminal device determines a first transmission time period and a second transmission time period, where the first transmission time period includes X1 time units, the second transmission time period includes X2 time units, and the first transmission time period does not overlap the second transmission time period. The terminal device sends a first reference signal in the first transmission time period and a first uplink signal in the second transmission time period, where the first uplink signal includes at least one of a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), or a demodulation reference signal (DMRS). Therefore, the terminal device may additionally send the first reference signal, to improve uplink channel estimation performance of a network device. This improves coverage performance of a communication system.

Communication method and apparatus

Embodiments of this application provide a data transmission method, an apparatus, and a system. The method includes: A terminal device determines first transmission time, and sends uplink data at a first power within the first transmission time. Correspondingly, a network device determines the first transmission time, and receives the uplink data within the first transmission time. Second transmission time includes the first transmission time, the first transmission time includes N1 time units, the second transmission time includes N2 time units, N1 is a positive integer, and N2 is a positive integer greater than N1.

Data transmission method, apparatus, and system

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Beijing, China

Xingqing Cheng