Huawei Technologies Co., Limited

Peng Guan

Kunpeng Liu

Xi Zhang

Lei Chen

Jianqin Liu

Di Zhang

Yi Qin

Peng Jiang

You Li

Huang Huang

Leiming Zhang

Xiaoyong Tang

Bo Fan

Xiaona Wang

Min Zhang

Ying Sun

Hongzhe Shi

Minghui Xu

Ziming Yu

Shengyue Dou

Mao Yan

Liuliu Ji

Jiehua Xiao

Kuandong Gao

Shitong Yuan

Cheng Qin

Enzhi Zhou

Xiangpu Liu

Xuyun Fan

This application provides methods and apparatuses for updating beam information. One method includes: receiving beam update information of a first component carrier (CC), and updating, based on the beam update information of the first CC, beam information of the first CC and beam information of one or more second CCs associated with the first CC.

Method for updating beam information and communications apparatus

The technology of this application relates to a beam pair training method and a communication apparatus. The method includes receiving configuration information sent by a network device, where the configuration information is used to configure a downlink reference signal resource set and a first uplink reference signal resource set associated with the downlink reference signal resource set, measuring, based on the downlink reference signal resource set by using a first antenna panel of a terminal device, a downlink reference signal sent by the network device, and sending a first uplink reference signal to the network device based on the first uplink reference signal resource set by using a second antenna panel of the terminal device. Based on the solution provided in this application, a simultaneous-reception beam pair or a simultaneous-transmission beam pair including beams generated by different antenna panels of the terminal device can be obtained through training.

Beam pair training method and communication apparatus

This disclosure provides signal receiving and sending methods and apparatuses. One method includes: receiving downlink control information (DCI) on a first component carrier (CC), wherein the DCI indicates a second CC and a second bandwidth part (BWP), the second CC and the second BWP are used to transmit a physical downlink shared channel (PDSCH), the DCI comprises a transmission configuration indicator (TCI) field. The method further includes receiving the PDSCH based on a first TCI state, wherein: the first TCI state is determined based on a first mapping relationship and a value of the TCI field; the first mapping relationship is a correspondence between at least one TCI state and at least one TCI field value and is determined based on the second CC and the second BWP.

Signal receiving and sending method and communications apparatus

This application provides a measurement reporting method and an apparatus. The method includes: receiving pilot measurement configuration information of a plurality of carriers, where the pilot measurement configuration information indicates a pilot association relationship of the plurality of carriers, and the pilot association relationship indicates that pilots of the plurality of carriers correspond to a same spatial domain transmit filter; performing measurement based on the pilot measurement configuration information, to obtain measurement report results of the plurality of carriers; and sending the measurement report results. The pilot association relationship of the plurality of carriers is configured for a terminal device, so that the terminal device may report, for the plurality of carriers, measurement results of the pilots corresponding to one or more same spatial domain transmit filters.

Measurement reporting method and apparatus

This application discloses a beam indication method and a communications apparatus. The method includes: sending configuration information to a terminal device, wherein the configuration information is used to indicate to determine, based on a unified beam indicator, beams used by the terminal device to transmit a plurality of physical channels and/or physical signals; and sending first information to the terminal device; wherein the first information is used to indicate the unified beam indicator; the unified beam indicator is associated with at least one downlink transmission configuration indicator (TCI) state identifier and at least one uplink TCI state identifier; and the downlink TCI state identifier is used to indicate a receive beam of a downlink physical channel, and the uplink TCI state identifier is used to indicate a transmit beam of an uplink physical channel. It can be learned it is helpful to reduce beam indication signaling overheads.

Beam indication method and communications apparatus

Embodiments of this application provide example beam failure recovery methods, example devices, and example systems to perform beam failure recovery. In one example method, a terminal device receives configuration information. The terminal device can determine M beam failure detection resource groups and N candidate beam resource groups based on the configuration information, where M and N are positive integers greater than 1. In response to determining that quality of each beam failure detection resource in any of the M beam failure detection resource groups is lower than a first threshold, the terminal device can determine, from a candidate beam resource group that is associated with the beam failure detection resource group and that is in the N candidate beam resource groups, one or more candidate beam resources whose quality is higher than a second threshold, and send first indication information.

Beam failure recovery method, device, and system

Example uplink transmission methods and apparatus are described. One example method includes determining a spatial relation for uplink transmission of a first cell by a terminal device by using a first resource in a second cell. The terminal device performs uplink transmission in the first cell based on the spatial relation for uplink transmission of the first cell.

Uplink transmission method, device, and storage medium

Example reference signal measurement methods, example resource indication methods, and example apparatuses are provided. One example method includes receiving at least one reference signal from a network device. Channel state information can then be determined based on some or all of the at least one reference signal. The channel state information can then be reported to the network device based on first duration. When it is determined to activate a first antenna panel and measure the at least one reference signal by using the first antenna panel, the first duration can be determined based on a first constraint relationship. The first antenna panel can be currently not activated.

Reference signal measurement method, resource indication method, and apparatus

In a second cell activation method, a terminal device receives activation signaling of a secondary cell sent by a network device, where the activation signaling includes at least one piece of first quasi co-location indication information; the terminal device activates the secondary cell based on the activation signaling. The technical solution provided in this application can reduce an activation delay of a secondary cell.

Secondary cell activation method and communication apparatus

A power adjustment method and an apparatus are provided, to improve stability of transmit power of an uplink signal, so that the uplink signal can be effectively transmitted. The method includes: receiving a MAC CE (), where the MAC CE is used to update a pathloss estimation reference signal; and determining a pathloss estimation value based on the pathloss estimation reference signal (), where an effective time of the pathloss estimation value is not later than n+X+T, n is a time for sending feedback information, the feedback information is used to feed back whether the MAC CE is correctly received, X is fixed duration, and T is variable duration. It can be learned that the effective time of the pathloss estimation value is not later than n+X+T.

Power adjustment method and apparatus

This application provides an information reporting method, including: receiving configuration information sent by a network device, where the configuration information is used to configure a first resource set and a second resource set, the first resource set is used for channel measurement, the second resource set is used for interference measurement, identifiers that are of N first resources and that are in the first resource set are in a one-to-one correspondence with identifiers that are of N second resources and that are in the second resource set, and N is an integer greater than 1, where if the identifiers of the N second resources are the same, receive parameters of the N first resources are the same; measuring signal strengths on the N first resources, to obtain N first signal strengths. According to this application, overheads of interference measurement resources are reduced.

Information reporting method and apparatus

A method and an apparatus for determining a status of an antenna panel. A terminal receives configuration information including at least one downlink signal resource set. When determining that a first antenna panel corresponding to a first downlink signal resource set is turned on, the terminal measures quality of a resource in the first downlink signal resource set by using the first antenna panel, and sends first feedback information. The first feedback information may indicate the quality of the resource in the first downlink signal resource set. When the first antenna panel is turned off, the terminal skips measuring the quality of the resource in the first downlink signal resource set, and sends second feedback information. The second feedback information is used to indicate that the first antenna panel is turned off.

Method and apparatus for determining status of antenna panel

Example antenna panel management methods of a terminal device are described. One example method includes that the terminal device enters a sleep mode from an active mode. When the terminal device is ready to re-enter the active mode from the sleep mode, if sleep duration is less than a preset threshold, a single panel of the terminal device is activated. If the sleep duration is greater than or equal to the preset threshold, a plurality of panels of the terminal device are activated. The terminal device activates a panel based on sleep duration between two consecutive DRX ON modes, so that a suitable panel can be activated in time, and a suitable beam can be further found for communication with a base station.

Antenna panel management and beam management method and device

This application discloses a secondary cell activation method and an apparatus, and relates to the communication field, so that a terminal device can report a channel state information measurement result in a secondary cell activation phase to a network device. The secondary cell activation method includes: A terminal device receives first indication information, where the first indication information is used to indicate an uplink resource for reporting a channel state information measurement result in a secondary cell activation phase; and the terminal device sends the channel state information measurement result to a network device based on the first indication information.

Secondary cell activation method and apparatus

Embodiments of the present invention disclose a communication method and a device. The method is applied to any terminal in a positioning system that includes one or more network devices and one or more terminals. The method includes: A terminal receives a measurement indication from a network device. The terminal receives reference signals from the network device, and measures the reference signals based on the measurement indication, where the reference signals are used for positioning measurement. The terminal sends one or more groups of measurement results to the network device, where reference signals corresponding to each group of measurement results have an association relationship, and the association relationship includes that each group of measurement results is measurement results of a same receive beam. According to the embodiments of the present invention, positioning efficiency can be improved.

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Chengdu, China

Peng Guan