Huawei Technologies Co., Limited

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Huawei Technologies,co., Ltd.

Huawei Technologeis Co., Ltd.

Jiayin Zhang

Yingpei Lin

Jun Luo

Mohamed Adel Salem

Jun Zhu

Yalin Liu

Yi Luo

Jian Ding

Jiyong Pang

Xun Yang

Le Liu

Qiong Jia

Liqing Zhang

Ji Wu

Yongming Liang

Yunbo Li

Jian Li

Toufiqul Islam

Phillip Barber

Weiwei Fan

Osama S Aboul-Magd

Jung Hoon Suh

Yi Tong Wang

Tianyu Wu

Chixiang Ma

Jun Ni

Wei Ni

Ming Gan

Kunpeng Liu

Xiaotao Ren

Zhengzheng Xiang

Yanchun Li

Jianglei Ma

Jianqin Liu

Amine Maaref

Xiaoyan Bi

Liang Xia

Thomas Haustein

Lars Thiele

Egon Schulz

David Jean-Marie Mazzarese

Mingyu Zhou

Ni Ma

Dageng Chen

Martin Kurras

Malte Schellmann

Michael Olbrich

Kai Börner

Lei Zhang

Yongxing Zhou

Kelvin Kar Kin Au

Zhenfei Tang

Yi Bin Wang

Sheng Liu

Lili Zhang

Yan Xin

Thomas Wirth

Peng Zhang

Yang Liu

Yinggang Du

Yong Jiang

Jingyuan Sun

Shimon Shilo

Doron Ezri

Hongjia Su

Genadiy Tsodik

David Mazzarese

Lei Huang

Rui Ni

Johannes Dommel

Yuqing Zhao

Junghoon Suh

Avi Weitzman

Liang Qiao

Embodiments of this application provide an unlicensed frequency band-based resource configuration method and an apparatus, to resolve a problem of configuring a fixed frame period FFP for a terminal device operating in an unlicensed frequency band in a current technology. The method includes: A network device sends fixed frame period FFP configuration information to a terminal device, where the FFP configuration information indicates an FFP configuration of the terminal device, an FFP is a period used by the terminal device to transmit a signal, the FFP includes channel occupancy time COT and an idle period Idle period, the channel occupancy time COT is used by the terminal device to transmit the signal, and the idle period is used by the terminal device to perform LBT.

Resource configuration method and device

This application provides a terminal apparatus and method for discontinuous reception (DRX) in an unlicensed band, and may be applied to a scenario in which a terminal device performs communication through a sidelink or a Uu link. A signal receive end monitors a sidelink signal and/or a downlink signal on a grant-free resource configured by a network device, and switches between a non-DRX mode and a DRX mode when a corresponding preset condition is met. Alternatively, a transmit end directly indicates a receive end to use a DRX mode or a non-DRX mode, or indirectly indicates, with assistance of a network device, a receive end to use a DRX mode or a non-DRX mode. In this way, DRX of the receive end can be implemented in a sidelink unlicensed band or a Uu link unlicensed band. This reduces power consumption of the receive end.

Method for DRX in unlicensed band and terminal apparatus

Systems and methods for two-step random access procedure are described. According to embodiments, a user equipment (UE) transmits a random access preamble on a random access channel. The UE also transmits data on an uplink data channel using a particular uplink data channel resource. The particular uplink data channel resource is selected by the UE based on the random access preamble.

Systems and methods for two-step random access procedure

This application discloses a directional measurement method and a device. In this one example solution, a terminal device may determine a to-be-measured receive beam, and perform received signal strength indication (RSSI) measurement on the to-be-measured receive beam. The terminal device may perform RSSI measurement on the to-be-measured receive beam in a targeted manner, and does not need to perform RSSI measurement in all directions. Therefore, directional RSSI measurement of the terminal device can be implemented.

Directional measurement method and device

This application provides example signal transmission method and apparatus. One example method includes sending, by a first terminal device to a second terminal device, indication information indicating a signal transmission resource. Listen before talk (LBT) is performed by the first terminal device before transmission with the second terminal device is performed. Transmission with the second terminal device is performed by the first terminal device according to the indication information.

Indication signal transmission method and apparatus

The present disclosure relates to signal transmission methods, devices, and systems. One example method includes sending, by a network device, a plurality of synchronization signal/physical broadcast channel (SS/PBCH) blocks in one or more burst set windows, where the one or more burst set windows include a plurality of candidate positions that are used to transmit the plurality of SS/PBCH blocks. SS/PBCH blocks sent at positions corresponding to at least two particular indexes have a quasi co-located (QCL) relationship.

Signal transmission method, and related device and system

Embodiments of this application provide a resource configuration method and apparatus, so as to improve resource utilization during D2D communication. A first terminal device receives scheduling information that is sent by a network device and that is used to indicate an uplink time-frequency resource used for the first terminal device, and the first terminal device can multiplex the uplink time-frequency resource to send a sidelink signal to a second terminal device when an interference value to the network device during sending of the sidelink signal meets a first rule. Therefore, the uplink time-frequency resource of the first terminal device is multiplexed while interference is considered during sidelink transmission, thereby improving resource utilization.

Resource configuration method and apparatus

A WLAN system resource indication method and apparatus are provided. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

WLAN system resource indication method and apparatus

Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.

Wireless local area network data transmission method and apparatus

Embodiments of the present invention provides a method and an apparatus for channel access for the transmission of a signal. The method includes: counting down, by a first device, an initial value N of a random backoff counter within a contention window; sensing, by the first device, a channel status; determining, by the first device, whether or not to perform transmission of the signal within a periodic window based on the sensed channel status; transmitting, by the first device, the signal after sensing the channel to be idle. Therefore, the channel access method and apparatus adapt to the data and control traffic load in the channel using LBT with random back-off with a contention window of variable size.

Channel access method and apparatus for transmission of a signal in unlicensed spectrum

Embodiments of this application disclose a resource allocation method, a base station, and a terminal. The method includes: A base station sends a configuration message to a terminal, where the configuration message is used to configure, for the terminal, a random access channel RACH resource used in a channel occupancy time COT. The base station receives a random access request that is sent by the terminal based on the RACH resource allocated by using the configuration message. According to embodiments of this application, a random access latency of the terminal can be reduced.

Resource allocation method, base station, and terminal

This application provides a feedback information sending method and apparatus and a feedback information receiving method and apparatus. A communications device to which the foregoing methods are applied sends or receives feedback information by using different feedback processes. When a network device does not determine whether a previous piece of feedback information is successfully received, the network device indicates a terminal device to send feedback information of a next piece of downlink data by using a new feedback process, and can schedule the next piece of downlink data without waiting for completion of processing of the previous piece of feedback information, thereby reducing a transmission delay.

Feedback information sending method and apparatus and feedback information receiving method and apparatus

A signal transmission method and apparatus are described. A network device indicates an uplink transmission resource to a terminal by using first indication information, and the terminal transmits a PUCCH and a first signal on the uplink transmission resource indicated by the first indication information. The uplink transmission resource is within an unlicensed frequency band, and the first signal includes one or more of a PUSCH, an SRS, and a PRACH. Thus, if resources required for PUCCH transmission are fewer than resources included in one interlace in the unlicensed frequency band, a remaining resource in the interlace may be used to transmit the first signal.

Signal transmission method and apparatus for indicating uplink transmission resource

A guard band indication method on an unlicensed spectrum is described that includes: a network device generating one or any combination of the following four types of information on the unlicensed spectrum: an indication of bandwidth configuration information, an indication of available bandwidth information, an indication of unavailable bandwidth information, or an indication of guard band information; and the network device sends the one or any combination of the foregoing four types of generated information. The one or any combination of the four types of information is used to determine a guard band that is based on a listen before talk (LBT) result.

Guard band indication method and apparatus

An initial signal detection method includes performing, by a user equipment, detection on one or more sub-channels on an unlicensed spectrum, and determining, based on a combination of a group common-demodulation reference signal and a group common-physical downlink control channel that is detected by the user equipment a first time, that downlink transmission has started or that a channel occupancy time has started.

Initial signal detection method and apparatus

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Shanghai, China

Jiayin Zhang