Huawei Technologies Co., Limited

Future Wei Technologies, Inc.

David Jean-Marie Mazzarese

Jianglei Ma

Lixia Xue

Yongxing Zhou

Yan Cheng

Jingyuan Sun

Lei Guan

Brian Keith Classon

Xiaotao Ren

Fredrik Berggren

Weimin Xiao

Liang Xia

Yang Tang

Qiang Li

Zheng Yu

Zhongfeng Li

Philippe J Sartori

Zhiheng Guo

Qiang Wu

Mattias Frenne

Mohammadhadi Baligh

Pengfei Xia

Kelvin Kar Kin Au

Zukang Shen

Xinqian Xie

Jiayin Zhang

Lei Wan

Bo Li

Hao Bi

Yang Zhao

Weiwei Fan

Zuomin Wu

Jianguo Wang

Sha Ma

Wei Chen

Zhe Liu

Mohamed Adel Salem

Yuan Xia

Toufiqul Islam

Guohua Zhou

Hao Tang

Yi Long

Jianmin Lu

Ke Wang

Quanzhong Gao

Wenping Bi

Yishen Sun

Liwen Zhang

Yongxia Lyu

Chaobin Yang

Yong Wang

Brian Classon

Embodiments of the present invention provide a bandwidth allocation method and apparatus, user equipment, and a base station. The method includes: receiving, by user equipment, virtual bandwidth configuration information, where the virtual bandwidth configuration information is used for indicating a configuration of a virtual bandwidth; and performing, by the user equipment, signal reception and/or signal processing according to the virtual bandwidth indicated by the virtual bandwidth configuration information, where each virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. In the embodiments of the present invention, reduction of overheads and reduction of complexity of signal reception and signal processing are implemented, and overheads and complexity of signal reception and processing feedback can be flexibly controlled.

Bandwidth allocation method and apparatus, user equipment, and base station

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

A random access method is described that includes a network device determines a first channel access type used by a terminal device to access a first unlicensed frequency band, where the first channel access type is one of channel access types of an unlicensed frequency band, and there are two channel access types of the unlicensed frequency band: frame based equipment (FBE) and load based equipment (LBE). The network device sends a first system message to the terminal device, where the first system message carries first indication information, and the first indication information is used to indicate the first channel access type. The terminal device obtains the first system message from the network device, and accesses the first unlicensed frequency band by using the first channel access type indicated by the first indication information.

Random access 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

A method and an apparatus for transmitting or receiving information are provided. The method includes: receiving, by a terminal device, indication information from a network device, where the indication information indicates a timing adjustment parameter, the timing adjustment parameter is to be used by the terminal device to determine transmit timings on a first uplink carrier and a second uplink carrier, the first uplink carrier is an uplink carrier of a first radio access technology, and the second uplink carrier is an uplink carrier of a second radio access technology; and determining, by the terminal device, the timing adjustment parameter based on the indication information.

Method and apparatus for transmitting or receiving information

An information receiving method and an apparatus are disclosed. The method includes: receiving, by a terminal device, first power information and second power information from a network device; and determining a first maximum transmission power based on the first power information, and determining a second maximum transmission power based on the second power information, where the first maximum transmission power is a maximum transmission power to be used by the terminal device for transmitting a signal by a first radio access technology, and the second maximum transmission power is a maximum transmission power to be used by the terminal device for transmitting a signal by a second radio access technology.

Information receiving method and apparatus

A communication method and an apparatus are provided. The method includes: receiving, by a terminal device, downlink control information (DCI) from a network device on a first downlink carrier; and determining a first uplink carrier or a second uplink carrier based on the DCI, where the DCI indicates an uplink carrier to be used by the terminal device to send an uplink signal to the network device is the first uplink carrier or the second uplink carrier; the DCI for indicating the first uplink carrier and the DCI for indicating the second uplink carrier having equal bit quantity; and the first downlink carrier, the first uplink carrier, and the second uplink carrier belong to a same cell.

Method and apparatus for uplink carrier indication

The present invention discloses a carrier switching method, a base station, and user equipment, where the method includes: determining, according to carrier switching capability information of user equipment UE, a carrier switching policy according to which the UE performs carrier switching; and sending carrier switching indication information to the UE, where the carrier switching indication information is used for indicating the carrier switching policy, so that the UE performs carrier switching according to the carrier switching policy. In the carrier switching method, the base station and the user equipment according to embodiments of the present invention, the UE having no carrier aggregation capability is enabled to dynamically perform switching between at least two carriers, so that quality of service of a service of the UE can be improved, user experience can be improved, and system performance can be improved.

Carrier switching method, base station, and user equipment

A system and method for feeding back channel information are provided. A method for communications device operations includes generating feedback information, encoding the feedback information to produce a feedback payload, and transmitting the feedback payload to a communications server serving a communications device. The feedback information includes at least a first long term wideband channel statistics and a second long term wideband channel statistics.

System and method for feeding back channel information

Embodiments provide methods and devices for data transmission and assignment of uplink control channel resources in an uplink FDD carrier, for enabling a terminal device to provide HARQ feedback for data transmitted in the downlink using carrier aggregation of a downlink FDD carrier and at least one TDD carrier. A method includes associating each downlink subframe in the downlink FDD carrier with an uplink control channel subframe in the uplink FDD carrier, associating each downlink subframe and special subframe in the TDD carrier with an uplink control channel subframe in the uplink FDD carrier, assigning uplink control channel resources in the uplink FDD carrier to the terminal device according to the associations, and transmitting data on said downlink FDD carrier and/or TDD carrier, to be received by the terminal device.

HARQ feedback using carrier aggregation

In a bandwidth allocation method, user equipment (UE) receives virtual bandwidth configuration information and performs signal reception and/or signal processing according to a virtual bandwidth indicated by the virtual bandwidth configuration information, where the virtual bandwidth configuration information is used for indicating a configuration of the virtual bandwidth. The virtual bandwidth is a part or all of a downlink maximum available bandwidth or a downlink transmission bandwidth, and the downlink maximum available bandwidth is a maximum bandwidth available for downlink transmission. In this way, reduction of overheads and reduction of complexity of signal reception and signal processing are implemented, and overheads and complexity of signal reception and processing feedback can be flexibly controlled.

Notifying served user equipments (UEs) of the presence or absence of cell-specific reference signal (CRS) symbols transmitted by neighboring base stations in the physical downlink shared channel (PDSCH) region of a subframe can be achieved through various of signaling techniques. The served UE may be notified by communicating a one or multi-bit indicator in a physical layer signaling channel of the serving cell, such as the physical downlink control channel (PDCCH) of the subframe. Alternatively, the served UE may be notified through higher layer signaling.

System and method for interference management in cellular networks

A system and method for transmitting a reference signal in a cell that uses an unlicensed frequency band. The method includes determining a candidate resource set that is used when a first reference signal is transmitted in the cell that uses the unlicensed frequency band, where the candidate resource set includes a preset resource and at least one flexible candidate resource, determining a first candidate resource that is used when the first reference signal is transmitted in the cell that uses the unlicensed frequency band, where a channel on the unlicensed frequency band corresponding to the first candidate resource is in an idle state, and the first candidate resource is the preset resource or a flexible candidate resource in the candidate resource set, and sending the first reference signal on the first candidate resource.

Method for transmitting reference signal in cell that uses unlicensed frequency band and device

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Beijing, China

David Jean-Marie Mazzarese