WO2020248779A1

WO2020248779A1 - Method for updating transmission configuration indicator (tci) information and communication apparatus

Info

Publication number: WO2020248779A1
Application number: PCT/CN2020/090986
Authority: WO
Inventors: 樊波; 张希; 管鹏
Original assignee: 华为技术有限公司
Priority date: 2019-06-14
Filing date: 2020-05-19
Publication date: 2020-12-17
Also published as: CN112087291B; CN112087291A

Abstract

The present application provides a method for updating transmission configuration indicator (TCI) information and a communication apparatus, intended to reduce signaling overheads, reducing the effect on data transmission performance. The method may comprise: a terminal device receiving measurement configuration information sent by a network device, the measurement configuration information comprising information about n resources, the n resources and a physical channel having the same TCI configuration, or the n resources and m resources having the same TCI configuration, wherein m and n are integers equal to or greater than one, and n is less than or equal to m; when the TCI-state of the physical channel is updated, or when the m resources are changed, the terminal device automatically updating TCI information about the n resources, so that the n resources and the physical channel or the m resources have the same TCI configuration.

Description

Method and communication device for updating transmission configuration indication TCI information

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 14, 2019, the application number is 201910513742.7, and the application title is "Method and Communication Device for Updating Transmission Configuration Indication TCI Information", the entire content of which is incorporated by reference In this application.

Technical field

This application relates to the field of communications, and in particular to a method and communication device for updating transmission configuration indication TCI information.

Background technique

The fifth generation mobile communication system (5th generation, 5G) adopts high-frequency communication based on analog beams, that is, network devices, such as base stations, use analog beams to send data, and terminal devices use analog beams to receive data. In order to achieve better data transmission performance, network equipment needs to use the best transmitting beam to send data, and terminal equipment needs to use the best receiving beam to receive data.

The best transmitting beam and the best receiving beam can be determined through a beam measurement process. The beam measurement process mainly includes two processes of transmitting beam scanning and receiving beam scanning. Transmit beam scanning can be used to determine the best transmit beam, and receive beam scanning can be used to determine the best receive beam.

The beam measurement process can also be used to determine the receive beams of some specific transmit beams, or determine the transmit beams of some specific receive beams.

Take the beam measurement process used to determine the receiving beam of a certain sending beam as an example. The transmission configuration indicator (TCI) state (TCI-state) of the transmit beam is the same as the TCI-state corresponding to the measurement signal in the receive beam scanning process. In this way, the transmit beam corresponding to the transmit beam can be determined through the receive beam scan process. The receive beam. In the prior art, when the TCI-state of the transmission beam changes, the network device sends a radio resource control (radio resource control, RRC) reconfiguration message to the terminal device to configure a new resource set for the measurement signal, so that the The TCI-state of the transmitting beam is the same as the TCI-state corresponding to the measurement signal.

This kind of reconfiguration method will bring greater signaling overhead, and the reconfiguration will take a long time to take effect, and the data transmission performance will also decrease.

Summary of the invention

The present application provides a method and a communication device for updating transmission configuration indication TCI information, in order to reduce signaling overhead and reduce the impact on data transmission performance.

In the first aspect, a method for updating the transmission configuration indication TCI information is provided. The method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in this application.

The method may include: receiving measurement configuration information sent by a network device, the measurement configuration information includes information about n resources, and the n resources have the same transmission configuration indication TCI configuration as the physical channel, where n is greater than 1 or An integer equal to 1; when the TCI-state of the physical channel is updated, the TCI information of the n resources is updated. After the update, the n resources and the physical channel have the same TCI configuration .

After updating, n resources and physical channels have the same TCI configuration, which means that n resources after updating TCI information and physical channels after updating TCI-state (or physical channels after changing TCI-state, or changing TCI-state) The physical channel after state) has the same TCI configuration. In other words, after the TCI information of the n resources is updated, and the TCI-state of the physical channel is updated, the n resources and the physical channel have the same TCI configuration.

Based on the above technical solution, n resources have the same TCI configuration as the physical channel. When the TCI-state of the physical channel is updated, the terminal device can automatically update the TCI information of n resources with the same TCI configuration as the physical channel. Make the n resources and the physical channel maintain the same TCI configuration. That is, the n resources after updating the TCI information and the physical channel after updating the TCI-state have the same TCI configuration.

Conversely, if the TCI-state of the physical channel is updated, n resources are reconfigured through radio resource control (RRC) reconfiguration, or TCI information is reconfigured for the n resources, this method greatly improves The signaling overhead is increased, the delay is increased, and the data communication performance is reduced.

Therefore, by automatically updating the TCI information of n resources with the same TCI configuration as the physical channel by the terminal equipment, frequent RRC reconfiguration can be avoided, signaling overhead can be reduced, and data communication performance can be improved.

Optionally, the n resources may be used to perform receive beam scanning on the physical channel. In other words, the measurement configuration information may be used to determine the resources of the physical channel or the best receive beam corresponding to the transmit beam. Alternatively, the n resources may be used to perform transmit beam scanning on the physical channel. In other words, the measurement configuration information may be used to determine the resources of the physical channel or the optimal transmit beam corresponding to the receive beam.

Optionally, the TCI information, for example, may include TCI-state, or may also include resources included in TCI-state.

With reference to the first aspect, in some implementations of the first aspect, the updating the TCI information of the n resources includes: updating the n resources based on the relationship between the n resources and the physical channel. TCI information for each resource.

Based on the above technical solution, n resources and physical channels may have an association relationship. The association relationship may be an implicit relationship. For example, when n resources and physical channels have the same TCI configuration, it can be considered that the n resources and the physical channel have an association relationship. The association relationship may also be a displayed relationship. For example, the association relationship between n resources and physical channels may exist in a form of a table, and so on.

With reference to the first aspect, in some implementations of the first aspect, the relationship between the n resources and the physical channel includes one or more of the following: correspondence between the physical channel and the n resources Relationship; or, the correspondence relationship between the physical channel and the resource set to which the n resources belong; the correspondence relationship between the resource corresponding to the physical channel and the n resources; or, the resource corresponding to the physical channel and the resource set The corresponding relationship of the resource sets to which n resources belong.

Based on the foregoing technical solution, the forms corresponding to the n resources and the physical channels may be any one or more of the foregoing. For example, the physical channel corresponds to n resources, in other words, the physical channel and the n resources have the same TCI configuration. For another example, a physical channel corresponds to a resource set to which n resources belong. In other words, a physical channel and a resource set to which the n resources belong have the same TCI configuration, where n resources may belong to one resource set. The terminal device automatically updates the TCI information of n resources, which can be understood as the terminal device automatically updates the TCI information of the resource set. For another example, the resource corresponding to the physical channel corresponds to n resources. In other words, the resource corresponding to the physical channel has the same TCI configuration as the n resources. For another example, the resource corresponding to the physical channel corresponds to the resource set to which the n resources belong. In other words, the resource corresponding to the physical channel and the resource set to which the n resources belong have the same TCI configuration.

With reference to the first aspect, in some implementations of the first aspect, the updating the TCI information of the n resources includes one or more of the following: updating the TCI-state of the n resources; or, updating The TCI-state of the resource set to which the n resources belong; or, update the reference signal resource included in the TCI-state of the n resources; or, update the TCI-state of the resource set to which the n resources belong Reference signal resources included.

Based on the above technical solution, updating the TCI information can mean updating the TCI-state, such as updating the TCI-state of n resources or the TCI-state of the resource set to which the n resources belong. Updating the TCI information can also mean updating the reference signal resources included in the TCI-state, such as updating the reference signal resources included in the TCI-state of n resources or the reference signal included in the TCI-state of the resource set to which the n resources belong Resources.

It should be understood that the embodiments of the present application are not limited to this, and any manner in which n resources and physical channels can maintain the same TCI configuration after updating the TCI information falls within the protection scope of the embodiments of the present application.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: receiving instruction information sent by the network device, where the instruction information is used to indicate whether the TCI information of the n resources can be Is automatically updated.

Based on the above technical solution, the network device can indicate to the terminal device whether the TCI information of the n resources can be automatically updated, or it can also be understood as whether the n resources support the automatic update function.

Optionally, the indication information may be an implicit indication, for example, carried in a resource parameter through one parameter or carried in the TCI-state of n resources, and so on. Alternatively, the indication information may also be a display indication, for example, a signaling indication. It is described in detail in the following examples.

With reference to the first aspect, in some implementations of the first aspect, the same TCI configuration includes one or more items: the index of the TCI-state is the same, the reference signal resources included in the TCI-state are the same, or the TCI-state is the same. There is a containment relationship in state.

The TCI-state has an inclusion relationship, which can indicate that the resources in the TCI-state of the physical channel include the n resources, or the resources in the TCI-state of the n resources include the resources corresponding to the physical channel Resources.

Based on the above technical solution, the same TCI configuration includes multiple forms. Take resource 1 (that is, the reference signal resource corresponding to the physical channel) and resource 2 having the same TCI configuration as an example. For example, the index of the TCI-state of resource 1 and the index of the TCI-state of resource 2 are the same. For another example, the reference signal resource included in the TCI-state of resource 1 and the reference signal resource included in the TCI-state of resource 2 are the same. For another example, if the resource included in the TCI-state of resource 2 is resource 1, it can be considered that resource 1 and resource 2 have the same TCI configuration; or, if the resource included in the TCI-state of resource 1 is resource 2, it can be considered Resource 1 and Resource 2 have the same TCI configuration.

Optionally, the same TCI configuration can be used, for example, between downlink resources and downlink resources, between downlink resources and uplink resources, between uplink resources and uplink resources, or between uplink channels and uplink resources, and so on. The following examples are described in detail.

With reference to the first aspect, in some implementations of the first aspect, the physical channel includes one or more of the following: a physical downlink control channel, a physical downlink shared channel, a physical uplink control channel, or a physical uplink shared channel.

In the second aspect, a method for updating transmission configuration indication TCI information is provided. The method may be executed by a terminal device, or may also be executed by a chip or a circuit configured in the terminal device, which is not limited in this application.

The method may include: receiving information about n resources sent by a network device, where the n resources and m resources have the same transmission configuration indication TCI configuration, where n is an integer greater than or equal to 1, and m is greater than 1. Or an integer equal to 1, and n is less than or equal to m; when the m resources are updated, the TCI information of the n resources is updated. After the update, the n resources are the same as the m resources TCI configuration.

After the update, n resources and m resources have the same TCI configuration, which means that the n resources after the update of the TCI information and the m resources after the update (or m resources after the change) have the same TCI configuration . In other words, after n resources are updated with TCI information and m resources are updated, the n resources and m resources have the same TCI configuration.

Based on the above technical solution, n resources and m resources have the same TCI configuration, and when m resources are updated, the terminal device can automatically update the TCI information of n resources with the same TCI configuration as the m resources, so that The n resources and m resources maintain the same TCI configuration. That is, the n resources after updating the TCI information and the m resources after updating the TCI-state have the same TCI configuration.

Conversely, if m resources are updated, n resources are reconfigured through RRC reconfiguration, or TCI information is reconfigured for the n resources. This method greatly increases the signaling overhead, increases the delay, and reduces Improved data communication performance.

Therefore, by automatically updating the TCI information of n resources with the same TCI configuration as the m resources, frequent RRC reconfiguration can be avoided, signaling overhead can be reduced, and data communication performance can be improved.

Optionally, n resources and m resources have the same TCI configuration, which can be a one-to-one correspondence between n resources and n resources in m resources, and each corresponding group of resources (that is, resources corresponding to each other) have the same TCI configuration. TCI configuration.

Optionally, n resources and m resources have the same TCI configuration, or any one of the n resources corresponds to one or more of the m resources, and each group of resources corresponding to each other (ie, corresponding to each other) Resources) have the same TCI configuration.

Optionally, each of the n resources belongs to a resource set, that is, n resources belong to n resource sets, and n resources and m resources have the same TCI configuration, or n resource sets and m resources The n resources in the resources have a one-to-one correspondence, and the corresponding resources and resource sets have the same TCI configuration.

Optionally, each of the n resources belongs to a resource set, that is, the n resources belong to the n resource sets, and the n resources and the m resources have the same TCI configuration, or any one of the n resource sets The resource set corresponds to one or more of the m resources, and the resources and resource sets corresponding to each other have the same TCI configuration.

It should be understood that there are multiple forms of the same TCI configuration for n resources and m resources, which are not strictly limited.

Optionally, the update of the resource may indicate that the index of the resource has changed.

With reference to the second aspect, in some implementations of the second aspect, the m resources include any one of the following: resources reported based on measurement results, reference signal resources in TCI-state used for data transmission, or data transmission The reference signal resource in the TCI-state used is the reference signal resource in the TCI-state.

Based on the above technical solution, m resources may represent the resources that the terminal device reports to the network device based on the measurement results; or, the m resources may be resources referenced by data transmission (or resources related to data transmission), such as data transmission The reference signal resource in the TCI-state of the reference signal resource, or the reference signal resource in the TCI-state of the reference signal resource.

Optionally, the resources reported by the terminal device to the network device at different times may be the same or different.

Optionally, the terminal device reports based on the measurement result, which can be that the terminal device measures the reference signal receiving power (RSRP) of each resource (that is, the beam corresponding to the resource), and then selects m resources with the largest RSRP, Report the m resources to the network device. For another example, the terminal device may also determine m resources based on the signal to interference plus noise ratio (SINR). There is no restriction on this.

With reference to the second aspect, in some implementations of the second aspect, the n resources include any one of the following: resources used for channel measurement, resources used for beam measurement, or tracking reference signal resources.

Based on the foregoing technical solution, n resources may represent resources used for channel measurement, or n resources may represent tracking reference signal resources.

Optionally, the m resources are resources reported by the terminal device based on the measurement result, and the n resources are resources used for channel measurement.

Based on the above technical solution, the terminal device can determine whether to automatically update the TCI information of the resource used for channel measurement based on whether the reported resource has changed.

Optionally, m resources are resources referenced by data transmission, and n resources are tracking reference signal resources.

Based on the above technical solution, the terminal device can determine whether to automatically update the TCI information tracking the reference signal resource based on whether the resource referenced by the data transmission has changed.

The above n resources and m resources can be combined arbitrarily.

With reference to the second aspect, in some implementations of the second aspect, when the m resources are resources reported based on measurement results; the condition that the m resources are updated includes: based on the measurement results at the second moment The indexes of the reported m resources are not exactly the same as the indexes of the m resources reported based on the measurement result at the first time, where the first time is earlier than the second time.

Based on the above technical solution, the resource is updated, which can indicate that the index of the resource has changed. That is, the terminal device can determine whether to automatically update the TCI information of n resources based on whether the indexes of the resources reported this time and the resources reported last time are the same.

With reference to the second aspect, in some implementation manners of the second aspect, the updating the TCI information of the n resources includes: updating the TCI information based on the relationship between the n resources and the m resources TCI information of n resources.

Based on the above technical solution, n resources and m resources can have an association relationship. The association relationship may be an implicit relationship. For example, when n resources and m resources have the same TCI configuration, it can be considered that the n resources and m resources have an association relationship. The association relationship may also be a displayed relationship. For example, the association relationship between n resources and m resources may exist in a form of a table, and so on.

With reference to the second aspect, in some implementation manners of the second aspect, the relationship between the n resources and the m resources includes one or more of the following: the n resources and the m resources N resources in the n resources in one-to-one correspondence; or, the n resource sets to which the n resources belong and the n resources in the m resources have a one-to-one correspondence; or, any one of the n resources corresponds to One or more of the m resources correspond; or, the resource set to which any one of the n resources belongs corresponds to one or more of the m resources; or, so The n resources correspond to the channels of the n resources among the m resources one-to-one; or, the n resource sets to which the n resources belong correspond to the channels of the n resources among the m resources one-to-one Or, any one of the n resources corresponds to a channel of one or more of the m resources; or, the resource set to which any one of the n resources belongs is the same as the m Channel correspondence of one or more of the resources; wherein, each corresponding group has the same TCI configuration.

Based on the foregoing technical solution, the corresponding form of the n resources and the m resources may be any one or more of the foregoing. The following examples are described in detail.

With reference to the second aspect, in some implementations of the second aspect, said updating the TCI information of the n resources includes one or more of the following: updating the TCI-state of the n resources; or, updating The TCI-state of the resource set to which the n resources belong; or, update the reference signal resource included in the TCI-state of the n resources; or, update the TCI-state of the resource set to which the n resources belong Reference signal resources included.

It should be understood that the embodiments of the present application are not limited to this, and any manner in which n resources and m resources can maintain the same TCI configuration after updating the TCI information falls within the protection scope of the embodiments of the present application.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: receiving instruction information sent by the network device, where the instruction information is used to indicate whether the TCI information of the n resources can be Is automatically updated.

With reference to the second aspect, in some implementations of the second aspect, the same TCI configuration includes one or more: the index of the TCI-state is the same, the reference signal resources included in the TCI-state are the same, or the TCI-state There is a containment relationship in state.

The TCI-state has an inclusion relationship, which can indicate that the resources in the TCI-state of the m resources include the n resources, or the resources in the TCI-state of the n resources include the m resources .

Based on the above technical solution, the same TCI configuration includes multiple forms. Take resource 1 and resource 2 as having the same TCI configuration as an example. For example, the index of the TCI-state of resource 1 and the index of the TCI-state of resource 2 are the same. For another example, the reference signal resource included in the TCI-state of resource 1 and the reference signal resource included in the TCI-state of resource 2 are the same. For another example, if the resource included in the TCI-state of resource 2 is resource 1, it can be considered that resource 1 and resource 2 have the same TCI configuration; or, if the resource included in the TCI-state of resource 1 is resource 2, it can be considered Resource 1 and Resource 2 have the same TCI configuration.

In a third aspect, a communication device is provided, and the communication device is configured to execute the method provided in the first aspect or the second aspect. Specifically, the communication device may include a module for executing the method provided in the first aspect or the second aspect.

In a fourth aspect, a communication device is provided. The communication device includes a memory and a processor. The memory is used to store instructions. The processor is used to execute the instructions stored in the memory and respond to the instructions stored in the memory. The execution of causes the processor to execute the method provided in the first aspect or the second aspect.

Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory and the processor may be provided separately.

Optionally, the communication device further includes a transmitter (transmitter) and a receiver (receiver).

In a fifth aspect, there is provided a communication system, the communication device provided in the third aspect; or, the communication device provided in the fourth aspect.

In a possible design, the communication system may also include other devices that interact with the communication device in the solution provided in the embodiments of the present application.

In a sixth aspect, a computer program product is provided. The computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes a computer to execute the first aspect or The method in any one of the two possible implementation modes.

In a seventh aspect, a computer-readable medium is provided, and the computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer to enable the computer to execute the first aspect or the first The method in any one of the two possible implementation modes.

In an eighth aspect, a chip system is provided, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a communication device installed with the chip system executes the foregoing The method in any one of the possible implementation manners of the first aspect or the second aspect.

Wherein, the chip system may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

In a ninth aspect, a chip is provided, the chip includes a processing module and a communication interface, the processing module is used to control the communication interface to communicate with the outside, and the processing module is also used to implement the first aspect or the second aspect Provided method.

In a tenth aspect, a communication system is provided, including the aforementioned terminal device and network device.

Description of the drawings

Fig. 1 and Fig. 2 are schematic diagrams of a communication system applied in an embodiment of the present application;

Figure 3 is a schematic diagram of beam measurement;

Figure 4 is a schematic diagram of receiving beam scanning;

Figure 5 is a schematic diagram of a method for updating TCI information provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a method for updating TCI information applicable to an embodiment of the present application;

FIG. 7 is a schematic diagram of a method for updating TCI information applicable to another embodiment of the present application;

FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application;

FIG. 9 is another schematic block diagram of a communication device provided by an embodiment of the present application;

FIG. 10 is a schematic block diagram of a terminal device provided by an embodiment of the present application;

FIG. 11 is a schematic block diagram of a network device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the drawings.

The embodiments of this application can be applied to beam-based communication systems, such as: 5th generation (5G) systems, new radio (NR), long term evolution (LTE) systems, LTE frequency division dual Frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS) or other evolved communication systems, etc.

The terminal equipment in the embodiments of this application may also be called: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device may be a device that provides voice/data connectivity to the user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and so on. At present, some examples of terminals are: mobile phones (mobile phones), tablets, notebook computers, palmtop computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving (self-driving), wireless terminals in remote medical surgery, and smart grid (smart grid) Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocols , SIP) phone, wireless local loop (WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, vehicle Devices, wearable devices, terminal devices in a 5G network, or terminal devices in a public land mobile network (PLMN) that will evolve in the future, and the embodiments of the present application are not limited thereto.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In addition, in the embodiments of this application, the terminal device may also be a terminal device in the Internet of Things (IoT) system. The IoT is an important part of the development of information technology in the future. Its main technical feature is to pass items through communication technology. Connect with the network to realize the intelligent network of human-machine interconnection and interconnection of things.

In addition, the network device in the embodiment of the present application may be a device used to communicate with terminal devices. The network device may also be called an access network device or a wireless access network device, and may be a transmission reception point (TRP). ), it can also be an evolved NodeB (evolved NodeB, eNB or eNodeB) in the LTE system, a home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU) , It can also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a 5G network The network equipment in the future evolved PLMN network may be an access point (AP) in a WLAN, or a gNB in a new radio system (new radio, NR) system, which is not limited in the embodiment of the present application.

In a network structure, a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node (CU). -CP node), user plane CU node (CU-UP node) and RAN equipment of DU node.

The network equipment provides services for the cell, and the terminal equipment communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment. The cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , It may also belong to the base station corresponding to the small cell, where the small cell may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.

To facilitate the understanding of the embodiments of the present application, some terms related to the embodiments of the present application are first introduced below.

1. Beam

The embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter. The beam used to transmit a signal can be called a transmission beam (Tx beam), can be called a spatial domain transmission filter or a spatial transmission parameter (spatial transmission parameter); the beam used to receive a signal can be called To receive the beam (reception beam, Rx beam), it may be called a spatial domain receive filter (spatial domain receive filter) or a spatial receive parameter (spatial RX parameter).

The transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.

In addition, the beam may be a wide beam, or a narrow beam, or other types of beams. The beam forming technology may be beamforming technology or other technology. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.

Beams generally correspond to resources. For example, when performing beam measurement, network equipment uses different resources to measure different beams. The terminal equipment feeds back the measured resource quality, and the network equipment knows the quality of the corresponding beam. During data transmission, the beam information is also indicated by its corresponding resource. For example, the network device instructs the terminal device physical downlink shared channel (PDSCH) beam information through the transmission configuration indicator (TCI) resource in the downlink control information (DCI).

Optionally, multiple beams with the same or similar communication characteristics may be regarded as one beam.

One beam corresponds to one or more antenna ports, which are used to transmit data channels, control channels, and sounding signals. One or more antenna ports corresponding to a beam can also be regarded as an antenna port set.

In the embodiments of the present application, unless otherwise specified, the beam refers to the transmission beam.

In beam measurement, each beam of the network device corresponds to a resource, so the resource index can be used to uniquely identify the beam corresponding to the resource.

2. Resources

In beam measurement, the resource index can be used to uniquely identify the beam corresponding to the resource.

The resource can be an uplink signal resource or a downlink signal resource.

The uplink signal includes, but is not limited to: sounding reference signal (SRS) and demodulation reference signal (DMRS).

Downlink signals include but are not limited to: channel state information reference signal (CSI-RS), cell-specific reference signal (CS-RS), UE-specific reference signal (user equipment specific reference signal, US-RS), demodulation reference signal (demodulation reference signal, DMRS), and synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel block, SS/PBCH block). Among them, the SS/PBCH block can be referred to as a synchronization signal block (synchronization signal block, SSB).

The resources can be configured through radio resource control (radio resource control, RRC) signaling.

In terms of configuration structure, a resource is a data structure, including its corresponding uplink/downlink signal related parameters, such as the type of uplink/downlink signal, the resource element that carries the uplink/downlink signal, the transmission time and period of the uplink/downlink signal , The number of ports used to send uplink/downlink signals, etc.

Each uplink/downlink signal resource has a unique index to identify the uplink/downlink signal resource. It is understandable that the index of the resource may also be referred to as the identifier of the resource, which is not limited in the embodiment of the present application.

3. Beam measurement

The beam measurement is a measurement procedure in the R15 protocol, which may include the following steps 1 to 4.

Step 1: The network device sends measurement configuration information to the terminal device.

The network device may send measurement configuration information to the terminal through radio resource control (radio resource control, RRC) signaling.

Measurement configuration information mainly includes two parts: resource configuration information and report configuration information.

Resource configuration information refers to information related to measurement resources. Resource configuration information can be configured through a three-level structure (resourceConfig-resourceSet-resource) in the protocol.

The network device may configure one or more resource configurations for the terminal device, each resource configuration may include one or more resource sets, and each resource set may include one or more resources. Each resource configuration/resource set/resource can include its own index. In addition, each resource configuration/resource set/resource may also include some other parameters, such as the period of the resource and the signal type corresponding to the resource.

Reporting configuration information refers to information related to measurement result reporting. The report configuration information can be configured through the report configuration (reportConfig) in the protocol.

The network device can configure one or more reporting configurations for the terminal device, and each reporting configuration can include information related to the reporting of measurement results, such as reporting indicators, reporting time and period, and reporting format. In addition, the report configuration may also include the index of the resource configuration, which is used to indicate the measurement configuration through which the reported result is measured.

In order to better understand the beam measurement architecture, as an example and not a limitation, the following is the specific format of resource configuration and report configuration in the R15 protocol. .

<group-based reporting criteria, can be configured as enabled or disabled>

Step 2: The network device sends a downlink signal on the resource particle corresponding to the resource configured by the resource configuration information, so that the terminal device can determine the quality of each resource (that is, the quality of the beam corresponding to the resource) by measuring the downlink signal.

Step 3: The terminal device measures the downlink signal according to the measurement configuration information.

Step 4: The terminal device sends a beam measurement report to the network device. The beam measurement report may include the index and quality of one or more resources.

As an example and not a limitation, Table 1 is the reporting format adopted by the beam measurement report in the R15 protocol.

Among them, the CRI (CSI-RS Resource Indicator) field and the SSBRI (SSB Resource Indicator) field are used to indicate the resource index to be reported. It is possible to report only CRI or SSBRI, or both.

with

Is the length of the CRI field and the SSBRI field.

Table 1

The RSRP field and the differential RSRP field are used to indicate the quality of resources. The reporting of the quality of resources adopts the differential reporting criterion. For example, in Table 1, the RSRP of the best resource (such as the RSRP field in Table 1) is reported quantified by 7 bits, while the RSRP of other resources (such as the differential RSRP field in Table 1) is reported quantified by 4 bits.

The beam measurement report may be carried in a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH).

In the R15 protocol, beams correspond to reference signal resources/measurement signal resources (both referred to as resources). For example, by configuring a specific resource to measure a specific beam, the quality of the beam can be known by measuring the quality of the feedback resource. Therefore, in this application, beams and resources are interchangeable. In addition, the beam can also be described as a TCI state (TCI-state).

4. Quasi-co-location (QCL)

Quasi-co-location (QCL) or quasi-co-location. The signals corresponding to the antenna ports with the QCL relationship have the same parameters, or the parameters of one antenna port can be used to determine the parameters of the other antenna port that has the QCL relationship with the antenna port, or the two antenna ports have the same parameters , Or, the parameter difference between the two antenna ports is less than a certain threshold. The parameters may include one or more of the following: delay spread, Doppler spread, Doppler shift, average delay, average Gain, spatial reception parameters (spatial Rx parameters). Among them, the spatial reception parameters can include one or more of the following: angle of arrival (angle of arrival, AOA), average AOA, AOA extension, angle of departure (angle of departure, AOD), average departure angle AOD, AOD extension, reception Antenna spatial correlation parameter, transmit antenna spatial correlation parameter, transmit beam, receive beam, and resource identification.

Wherein, the above-mentioned angle may be decomposition values of different dimensions, or a combination of decomposition values of different dimensions. Antenna ports are antenna ports with different antenna port numbers, and/or antenna ports that have the same antenna port number for information transmission or reception in different time and/or frequency and/or code domain resources, and/or have different Antenna port number The antenna port for information transmission or reception in different time and/or frequency and/or code domain resources. The resource identifier may include: CSI-RS resource identifier, or SRS resource identifier, or SSB resource identifier, or the resource identifier of the preamble sequence transmitted on the Physical Random Access Channel (PRACH), or the demodulation reference signal ( The demodulation reference signal (DMRS) resource identifier is used to indicate the beam on the resource.

In the NR protocol, QCL relationships can be divided into the following four types based on different parameters:

Type A (type A): Doppler frequency shift, Doppler spread, average delay, and delay spread;

Type B (type B): Doppler frequency shift, Doppler spread;

Type C (type C): Doppler frequency shift, average delay; and

Type D (type D): Space receiving parameters.

The QCL involved in the embodiment of the present application is a type D QCL. In the following, unless otherwise specified, QCL can be understood as a QCL of type D, that is, a QCL defined based on spatial reception parameters.

When a QCL relationship refers to a QCL relationship of type D, it can be considered as an airspace QCL. When the antenna port meets the spatial QCL relationship, the QCL relationship between the downlink signal port and the downlink signal port, or between the uplink signal port and the uplink signal port, can be that the two signals have the same AOA or AOD. Yu means the same receiving beam or transmitting beam. For another example, for the QCL relationship between the downlink signal and the uplink signal or between the ports of the uplink signal and the downlink signal, the AOA and AOD of the two signals may have a corresponding relationship, or the AOD and AOA of the two signals may have a corresponding relationship, that is, the beam can be used Reciprocity: Determine the uplink transmit beam according to the downlink receive beam, or determine the downlink receive beam according to the uplink transmit beam.

From the perspective of the transmitter, if the two antenna ports are spatial QCL, it can mean that the corresponding beam directions of the two antenna ports are spatially consistent. From the perspective of the receiving end, if the two antenna ports are spatial QCL, it can mean that the receiving end can receive the signals sent by the two antenna ports in the same beam direction.

The signal transmitted on the port with the spatial QCL relationship may also have a corresponding beam, and the corresponding beam includes at least one of the following: the same receiving beam, the same transmitting beam, and the transmitting beam corresponding to the receiving beam (corresponding to the reciprocal Scene), the receiving beam corresponding to the transmitting beam (corresponding to the scene with reciprocity).

The signal transmitted on the port with the spatial QCL relationship can also be understood as using the same spatial filter to receive or transmit the signal. The spatial filter may be at least one of the following: precoding, weight of the antenna port, phase deflection of the antenna port, and amplitude gain of the antenna port.

The signal transmitted on the port with the spatial QCL relationship can also be understood as having a corresponding beam pair link (BPL), and the corresponding BPL includes at least one of the following: the same downlink BPL, the same uplink BPL, and the downlink BPL The corresponding uplink BPL, the downlink BPL corresponding to the uplink BPL.

Therefore, the spatial reception parameter (ie, QCL of type D) can be understood as a parameter for indicating the direction information of the reception beam.

5. TCI state (TCI-state)

TCI-state can be used to indicate the QCL relationship between two reference signals. Each TCI-state may include a serving cell index (ServeCellIndex), a bandwidth part (bandwidth part, BWP) identifier (identifier, ID), and a reference signal resource identifier. The reference signal resource identifier may be, for example, at least one of the following: non-zero power (NZP) CSI-RS reference signal resource identifier (NZP-CSI-RS-ResourceId), non-zero power CSI-RS reference signal Resource set identifier (NZP-CSI-RS-ResourceSetId) or SSB index (SSB-Index).

The transmission beam information can be indicated by TCI-state. Each TCI-state includes its own index (tci-StateId) and two QCl-Info. Each QCl-Info may include a reference signal resource (referenceSignal), which indicates that the resource using the TCI-state and the reference signal resource included in the QCL-Info constitute a QCL relationship. For example, if a TCI-state is configured for resource 1, and the resource included in the QCL-Info included in the TCI-state is resource 2, it means that resource 1 and resource 2 are QCL.

TCI-state is configured by network equipment to each terminal device. The following is a format of TCI-state.

In the subsequent communication process, the terminal device may determine the receiving beam based on the TCI-state indicated by the network device, and the network device may determine the transmitting beam based on the same TCI-state.

In addition, TCI-state can be configured globally. In TCI-states configured for different cells and different bandwidth parts (BWP), if the index of the TCI-state is the same, the configuration of the corresponding TCI-state is also the same.

In addition, beam measurement includes three types of measurement: periodic measurement, semi-static measurement, and aperiodic measurement. In the aperiodic measurement process, the TCI-state is configured at the resourceSet level, that is, a resourceSet is configured with a TCI-state. In the periodic and semi-static measurement process, TCI-state is configured at the resource level, that is, one resource can be configured with one TCI-state.

In addition, for aperiodic measurement, the network device configures a trigger state for the terminal device, and the trigger-state is used to trigger the aperiodic measurement report process. Each trigger-state is associated with one or more report configurations (reportConfig), and each reportConfig is associated with a resourceSet. That is, each trigger-state can trigger multiple non-periodic reporting processes, and the content reported in each reporting process is obtained by measuring the corresponding resourceSet. The resourceSet associated with trigger-state can be of the SSB type, that is, the resources included in the resourceSet are all SSB resources; the resourceSet associated with the trigger-state can also be of the type NZP-CSI-RS, that is, the resources included in the resourceSet are all NZP-CSI- RS resources. When the resourceSet type is the NZP-CSI-RS type, the resourceSet may also be associated with a TCI-state index, and the TCI-state index is used to indicate the TCI-state adopted by the resourceSet.

6. TCI

TCI can be used to indicate TCI-state. In one implementation, the network device can configure the TCI-state list for the terminal device through high-level signaling (such as an RRC message). For example, the network device can add the TCI-state list (tci-StatesToAddModList) in the RRC message. Configure the TCI-state list for the terminal device. The TCI-state list may include multiple TCI-states. For example, the network device may configure a maximum of 64 TCI-states for each BWP in each cell.

After that, the network device can activate one or more TCI-states through high-level signaling (such as MAC CE). The activated TCI-state is a subset of the TCI-state list configured in the above RRC message. For example, the network device can activate up to 8 TCI-states for each BWP in each cell.

Thereafter, the network device can also indicate a selected TCI-state through the TCI field in the physical layer signaling (such as DCI). The DCI may be applicable to DCI for scheduling physical downlink resources, for example.

Among them, the configuration information of a TCI-state may include the identification of one or two reference signal resources and the associated QCL type. When the QCL relationship is configured as one of Type A, or B, or C, the terminal device can demodulate the PDCCH or PDSCH according to the indication of the TCI-state. When the QCL relationship is configured as Type D, the terminal device can know which transmit beam is used by the network device to send signals, and can then determine which receive beam to use to receive signals according to the beam pairing relationship determined by the channel measurement described above. The terminal device may determine the receiving beam for receiving the PDSCH according to the TCI field in the DCI on the physical downlink control channel (PDCCH).

7. Control resource set (CORESET)

The control resource set is a resource set used to transmit downlink control information, and may also be referred to as a control resource region or a physical downlink control channel resource set.

Each control resource set may be a set of resource element groups (REG). REG is the basic unit for downlink control signaling to allocate physical resources, and is used to define the mapping of downlink control signaling to RE. For example, one REG may be composed of 4 continuous resource elements (resource elements, RE) of non-reference signal (RS) in the frequency domain. It should be understood that REG is only a unit for resource allocation and should not constitute any limitation to this application. This application does not exclude the definition of a new resource allocation unit in future agreements to achieve the same or similar functions.

For network devices, the control resource set can be understood as a set of resources that may be used to send PDCCH; for terminal devices, the resources corresponding to the search space of the PDCCH of each terminal device belong to the control resource set. In other words, the network device can determine the resource used to send the PDCCH from the control resource set, and the terminal device can determine the PDCCH search space according to the control resource set.

Among them, the control resource set may include time-frequency resources, for example, it may be a bandwidth or one or more subbands in the frequency domain; it may be one or more symbols in the time domain; and a control resource set may be in the time-frequency domain. It is a continuous or discontinuous resource unit, for example, a continuous resource block (resource block, RB) or a discontinuous RB.

It should be understood that the specific content of the frequency domain resources, time domain resources, and time-frequency domain resources listed above are only exemplary descriptions, and should not constitute any limitation to this application. For example, an RB is an example of a resource unit, and the size of the RB may be a resource defined in the NR protocol, or a resource defined in a future protocol, or other names may be used instead. For another example, the control resource set in the time domain may also be one or more time slots, radio frames, subframes, mini-slots or sub-slots, or transmission time intervals (TTI). The application embodiment does not specifically limit this.

In addition, the control resource set may also include TCI-state. The control resource set may include multiple TCI-states, and the activated TCI-state may be one of the multiple TCI-states. In other words, the resource used to transmit PDCCH may specifically adopt one of the multiple TCI-states. , Which TCI-state to use is specified by the network device. For example, a network device sends a media access control (Media Access Control, MAC) control element (CE) (MAC CE) to a terminal device, and the MAC CE carries a TCI-state index. The TCI-state index is used The TCI-state is used to indicate the PDCCH corresponding to the control resource set. In addition, the network equipment can also modify the TCI-state of the PDCCH through the MAC CE. The network device can configure one or more control resource sets for the terminal device to transmit different types of PDCCH.

The control resource set can be configured through the ControlResourceSet information element in the high-level parameters, for example. The high-level parameters may include, for example, the identification (ID) of the control resource set, frequency domain resources, and the number of symbols included in the duration (duration). This application does not limit the specific parameters used to configure the control resource set.

The communication system applied in the embodiments of the present application may include one or more network devices and one or more terminal devices. A network device can transmit data or control signaling to one or more terminal devices. Alternatively, multiple network devices may simultaneously transmit data or control signaling for one terminal device.

As an example and not a limitation, FIG. 1 is a schematic diagram of a communication system 100 applied in an embodiment of this application. The communication system 100 includes a network device or 110 and a plurality of terminal devices 120 (terminal device 120a and terminal device 120b as shown in FIG. 1). The network device 110 may simultaneously transmit multiple analog beams through multiple radio frequency channels to transmit data to multiple terminal devices. As shown in FIG. 1, the network device transmits beam 1 and beam 2 at the same time, wherein beam 1 is used to transmit data for terminal device 120a, and beam 2 is used to transmit data for terminal device 120b. The beam 1 may be referred to as the serving beam of the terminal device 120a, and the beam 2 may be referred to as the serving beam of the terminal device 120b. The terminal device 120a and the terminal device 120b may belong to the same cell.

FIG. 2 shows another schematic diagram of a communication system 200 applicable to an embodiment of the present application. As shown in the figure, the communication system 200 may include at least two network devices, such as the network device 210 shown in FIG. 2 (the network device 210a and the network device 210b shown in FIG. 2); the communication system 200 may also It includes at least one terminal device, such as the terminal device 220 shown in FIG. 2. The terminal device 220 may establish a wireless link with the network device 210a and the network device 210b through dual connectivity (DC) technology or multi-connection technology. Among them, the network device 210a may be, for example, a primary base station, and the network device 210b may be, for example, a secondary base station. In this case, the network device 210a is the network device when the terminal device 220 initially accesses, and is responsible for radio resource control (RRC) communication with the terminal device 220. The network device 210b can be added during RRC reconfiguration. , Used to provide additional wireless resources.

In some communication systems, such as 5G communication systems, high-frequency communication based on analog beams is used, that is, network devices use analog beams to send data, and terminal devices use analog beams to receive data. In order to achieve the best data transmission performance, network equipment needs to use the best transmitting beam, and terminal equipment needs to use the best receiving beam. The best transmitting beam and the best receiving beam need to be determined through a beam measurement process (or beam management process). As shown in Fig. 3, the beam measurement mainly includes two processes of sending beam scanning (or called sending beam measurement) and receiving beam scanning (or called receiving beam measurement).

Transmit beam scanning can be used to determine the best transmit beam. For example, a network device can use multiple different transmission beams to send measurement signals, and the terminal device measures the measurement signals corresponding to each transmission beam, and determines which transmission beam is the best according to the signal strength received on each transmission beam (such as signal strength). The larger, the better the sending beam), and the information of the sending beam is reported to the network device. In this way, the network device can know which transmission beam is the best to send data to the terminal device. As shown in Figure 3, the best downlink transmit beam can be determined by scanning the transmit beam. In the resourceSet used to send beam scanning, the repetition parameter is set to "off".

Receive beam scanning is used to determine the best receive beam. For example, the network device may use the same transmit beam to transmit measurement signals multiple times, and the terminal device may use different receive beams to measure the measurement signals transmitted multiple times by the transmit beam to determine which receive beam is the best for the transmit beam. As shown in Figure 3, the best uplink transmission beam can be determined by receiving beam scanning. For different transmit beams, the best receive beam may be different. Therefore, when receiving beam scanning, a specific transmit beam is generally fixed to determine the best receive beam for the transmit beam. In the resourceSet used for receiving beam scanning, the repetition parameter is set to "on".

The beam measurement process can also be used to determine the receive beams of some specific transmit beams, or determine the transmit beams of some specific receive beams. Taking receiving beam scanning as an example, receiving beam scanning may be used to determine the receiving beam of a specific transmitting beam, for example, receiving beam scanning may be used to determine the receiving beam of a specific transmitting beam, such as a PDCCH beam or a PDSCH beam. Taking the PDCCH beam as an example, in order to determine the best receiving beam of the PDCCH beam, the network device needs to configure a resourceSet (repetition parameter is set to "on") to the terminal device, and set the TCI-state of the resourceSet or the resource in the resourceSet The TCI-state is configured to be the same as the TCI-state of the PDCCH beam, so that the best receiving beam of the PDCCH beam can be determined by measuring the resources of the resourceSet.

As the terminal device moves, the control channel beam may change, that is, the PDCCH beam may change, or in other words, the TCI-state of the PDCCH may change. In this case, the originally configured resourceSet cannot be used for receiving beam scanning of the new PDCCH beam, that is, the best receiving beam of the PDCCH beam cannot be determined by measuring the resources of the previous resourceSet.

When the PDCCH beam changes, in order to scan the new PDCCH beam, a possible implementation is that the network device reconfigures a new resourceSet, or the network device can also configure a new TCI- for the previously used resourceSet. state. As shown in Figure 4, when the control channel beam transmission changes, that is, the TCI-state changes, the network device sends an RRC reconfiguration message to the terminal device to reconfigure a new resourceSet, or the network device configures a new resourceSet for the previously used resourceSet. The TCI-state of the PDCCH is the same as the TCI-state of the PDCCH.

With the above method, each beam change (such as PDCCH beam transmission change) will cause RRC reconfiguration. Frequent RRC reconfiguration will bring greater signaling overhead. In addition, the effective time of the RRC reconfiguration is also relatively long, resulting in the inability to perform the receiving beam scanning of the new PDCCH beam in time. Furthermore, the data transmission performance will decrease.

This application proposes a method and device for updating TCI information. By automatically updating TCI information by terminal equipment, signaling overhead caused by frequent RRC reconfiguration can be avoided, and the delay caused by updating TCI information can be reduced and data transmission can be improved. performance.

FIG. 5 is a schematic flowchart of a method 500 for updating TCI information according to an embodiment of the application. The method 500 may include the following steps.

510. The network device sends information about n resources to the terminal device, where the n resources have the same TCI configuration as the first target, where n is an integer greater than or equal to 1.

In order to distinguish, the resource among the n resources is marked as resource A, that is, the network device sends n resource A information to the terminal device.

Resource A, as described above, can be an uplink signal resource or a downlink signal resource. Resource A may be a measurement resource used for beam measurement, such as a resource used for transmitting beam scanning or receiving beam scanning. Alternatively, the resource A may also be a resource used for channel measurement. Alternatively, the resource A may also be a tracking reference signal (tracking reference signal, TRS) resource, etc., which is not limited.

Optionally, the network device sends measurement configuration information to the terminal device, and the measurement configuration information includes the n resources A.

The measurement configuration information may include resource configuration information, the resource configuration information (resourceConfig) includes one or more resource sets (resourceSet), and each resource set may include one or more resources. The measurement configuration information includes n resources A, and the n resources A may belong to one resource set, or may also belong to multiple resource sets, which is not limited.

In addition, the measurement configuration information may also include report configuration information. For example, the measurement configuration information may include trigger status. As mentioned above, the trigger state is configured by the network device to the terminal device through measurement configuration information, and is used to trigger the aperiodic measurement report process.

Among them, the first goal includes the following two situations.

Case 1: The first target is a physical channel.

For example, the physical channel may be one or more of the following: PDCCH, PDSCH, PUSCH, or PUCCH.

Situation 2: The first goal is resources.

For example, the resource may be: a reference signal resource in the TCI-state used for data transmission, a reference signal resource in the TCI-state of the reference signal resource, or a resource reported by beam management, etc.

The above two situations are described below with reference to the embodiments of FIG. 6 and FIG. 7 respectively.

Among them, the same TCI configuration can be used, for example, between downlink resources and downlink resources, between downlink resources and uplink resources, between uplink resources and uplink resources, between downlink channels and downlink resources, uplink channels and downlink resources Between the uplink channel and the uplink resource, etc.

Exemplarily, the downlink resource and the downlink resource have the same TCI configuration. Having the same TCI configuration can indicate that the TCI-state indexes of the two downlink resources are the same. Or, having the same TCI configuration may also indicate that the reference signal resources corresponding to the QCL-info of typeD included in the TCI-states of the two downlink resources are the same. Or, having the same TCI configuration may also mean that all the reference signal resources corresponding to the QCL-info included in the TCI-states of the two downlink resources are the same. Alternatively, having the same TCI configuration may also indicate that there is a mutual inclusion relationship in the TCI-state. For example, if the resource included in the TCI-state of resource 2 is resource 1, it can be considered that resource 1 and resource 2 have the same TCI configuration.

Exemplarily, the downlink resource and the uplink resource have the same TCI configuration. Having the same TCI configuration may indicate that the reference resource in the TCI-state of the downlink resource is the same as the reference resource in the spatial relation (SR) of the uplink resource. Alternatively, having the same TCI configuration may also indicate that the reference resource in the TCI-state of the downlink resource is the uplink resource. Or, having the same TCI configuration may also indicate that the reference resource in the spatial relationship of the uplink resource is the downlink resource. Among them, the spatial relationship can also be called uplink TCI (uplink TCI, UL TCI). The spatial relationship can be used to determine the transmission beam of the uplink signal.

Exemplarily, the uplink resource and the uplink resource have the same TCI configuration. Having the same TCI configuration can indicate that the two uplink resources have the same TCI-state or spatial relationship. Or, having the same TCI configuration may indicate that the resources included in the TCI-state or spatial relationship of the two uplink resources are the same. Or, having the same TCI configuration may indicate that the resource included in the TCI-state or spatial relationship of one uplink resource is the other uplink resource of the two uplink resources.

Exemplarily, the downlink channel and the downlink resource have the same TCI configuration. Having the same TCI configuration, it can be expressed that the index of the TCI-state of the downlink channel and the downlink resource is the same. Or, having the same TCI configuration may indicate that the downlink channel is the same as the reference signal resource corresponding to the QCL-info of type D included in the TCI-state of the downlink resource. Or, having the same TCI configuration can also be expressed as the reference signal resource corresponding to the downlink channel and all QCL-info included in the downlink resource are the same. Or, having the same TCI configuration can also be expressed as the downlink channel and the downlink resource have a mutual inclusion relationship in the TCI-state, for example, the resource included in the TCI-state of the downlink channel is the downlink resource.

Exemplarily, the uplink channel and the downlink resource have the same TCI configuration. With the same TCI configuration, it can be expressed that the UL TCI-state of the uplink channel has the same index as the TCI-state of the downlink resource. Or, with the same TCI configuration, it can be expressed that the resource included in the UL TCI-state of the uplink channel is the downlink resource.

Exemplarily, the uplink channel and the uplink resource have the same TCI configuration. Having the same TCI configuration can indicate that the SRS resource index (SRS-resource indicator, SRI) corresponding to the uplink channel is the uplink resource. Or, having the same TCI configuration may indicate that the SRI corresponding to the uplink channel is a resource included in the UL TCI-state or spatial relationship of the uplink resource.

It should be understood that the resource and the resource have the same TCI configuration, and it can also be considered that the resource and the resource are corresponding or associated; or, the resource and the channel have the same TCI configuration, and it can also be considered that the resource and the channel are corresponding or associated.

Regarding having the same TCI configuration, I won't repeat them below.

520. In the case where the first target or the TCI-state of the first target is updated, the terminal device updates the TCI information of the n resources. After the update, the n resources have the same TCI configuration as the first target. In other words, the n resources always maintain the same TCI configuration as the first target.

In other words, when the first target or the TCI-state of the first target changes, the terminal device automatically updates the TCI information of the n resource A, so that the n resource A and the first target can maintain the same TCI configuration .

In the embodiments of this application, automatic update is mentioned many times. Automatic update can be understood as the terminal device automatically updates the TCI information corresponding to the resource or resource set after determining that the first target or the TCI-state of the first target is updated. Or, it can be understood that after the first target or the TCI-state of the first target is updated, the network device does not need to reconfigure the resource or resource set through RRC reconfiguration, or the network device does not need to configure a new resource or resource set. TCI information. Alternatively, it can also be understood that the network device configures multiple TCI information for the resource or resource set in advance, or in other words, the resource or resource set is associated with multiple TCI information, and the terminal device according to the first target or the TCI-state corresponding to the first target, Determine the TCI information corresponding to the resource or resource set from the multiple TCI information.

Updating the TCI information may mean updating the TCI-state, for example, updating the TCI-state of the resource A, or updating the TCI-state of the resource set to which the resource A belongs. Alternatively, updating the TCI information may also mean updating the reference resource in the TCI-state, for example, updating the reference resource in the TCI-state of the resource A, or updating the reference resource in the TCI-state of the resource set to which the resource A belongs. Update the TCI information so that the n resources A maintain the same TCI configuration as the first target.

For example, the multiple TCI-states configured by the network device for the resource set in advance include: TCI-state1, TCI-state2, TCI-state3, TCI-state4, and TCI-state5, and the resource set is associated with the PDCCH. For example, when the TCI-state of the PDCCH is TCI-state2, the TCI-state corresponding to the resource set is TCI-state2; another example, when the TCI-state of the PDCCH is updated to TCI-state4, the TCI-state corresponding to the resource set Update to TCI-state4.

It should be understood that the embodiment of the present application is not limited to this, and any manner that enables the n resources A to maintain the same TCI configuration with the first target after updating the TCI information falls within the protection scope of the embodiment of the present application.

Step 520 is briefly described below in combination with the above two situations.

Case 1: The first target is a physical channel.

In this case, step 520: When the TCI-state of the physical channel is updated, the terminal device updates the TCI information of n resource A, and the updated n resource A has the same TCI configuration as the updated physical channel .

Among them, the updated n resources A indicate the n resources A after updating the TCI information; the updated physical channel indicates the physical channel after updating the TCI-state.

Optionally, in this case, the terminal device may automatically update the TCI information of resource A based on the update message.

Before step 520, the method 500 may further include: the terminal device receives an update message sent by the network device, where the update message is used to indicate the updated TCI-state of the physical channel. After receiving the update message, the terminal device can automatically update the TCI information of the n resources A, so that the n resources A and the physical channel always have the same TCI configuration.

For example, when the physical channel is PDCCH, the update message can be MAC CE signaling, that is, the network device can activate a TCI-state through MAC CE, or in other words, the network device can activate a certain control resource set through MAC CE Of a TCI-state. After receiving the MAC CE, the terminal device updates the TCI information of the n resource A, so that after the update, the resource A and the PDCCH have the same TCI configuration.

For another example, when the physical channel is the PDSCH, the update message can be DCI or MAC CE, that is, the network device can indicate one or more updated TCI-states through DCI, or the network device can activate the update through MAC CE One or more TCI-states afterwards. After receiving the DCI or MAC CE, the terminal device updates the TCI-state of the n resources A, so that the updated TCI-state is the same as the updated TCI-state of the PDSCH beam.

Optionally, the effective time of the TCI-state after the TCI information of the n resources A is updated is consistent with the effective time of the TCI-state after the physical channel is updated. For example, after receiving the update message, the terminal device can automatically update the TCI-states corresponding to n resources A after a preset period of time.

Wherein, the preset duration may be preset, such as preset by the network device or specified in the protocol; or, it may be the preset duration configured by the network device and notified to the terminal device, such as the duration determined based on historical communication conditions; Or, it may be determined by the terminal device itself, and the terminal device may also report the time as a terminal capability parameter to the network device.

Optionally, the terminal device may update the TCI information of the n resource A based on the relationship between the n resource A and the physical channel.

The n resource A and the physical channel have the same TCI configuration, and it can be considered that the n resource A is associated or corresponding to the physical channel. In other words, when the TCI-state of the physical channel is updated, the terminal device automatically updates the TCI information of the n resources A associated with the physical channel, so that the associated n resources A and the physical channel have the same TCI configuration.

The relationship between the n resources A and the physical channel, or that the n resources A and the physical channel have the same TCI configuration, may be obtained in advance by the terminal device, for example, the network device may notify the terminal device in advance.

Among them, the relationship between n resources A and physical channels may include one or more of the following: the corresponding relationship between the physical channel and the n resource A, the corresponding relationship between the physical channel and the resource set to which the n resource A belongs, and the physical channel The corresponding relationship between the corresponding resource and the n resource A, or the corresponding relationship between the resource corresponding to the physical channel and the resource set to which the n resource A belongs.

For example, the physical channel is PDCCH, and the n resources A include: resource 1, resource 2, and resource 3. Assume that the resource set to which resource 1, resource 2, and resource 3 belong is resource set 1.

The relationship between n resources A and physical channels may include: PDCCH corresponds to resource 1, resource 2, and resource 3. In other words, the TCI configuration of PDCCH, resource 1, resource 2, and resource 3 are the same. Alternatively, the relationship between the n resources A and the physical channel may further include: the PDCCH corresponds to the resource set 1, in other words, the PDCCH and the resource set 1 have the same TCI configuration. Alternatively, the relationship between the n resources A and the physical channel may also include: the resource corresponding to the PDCCH corresponds to resource 1, resource 2, and resource 3. In other words, the resource corresponding to PDCCH, resource 1, resource 2, and resource The TCI configuration of 3 is the same. Alternatively, the relationship between the n resources A and the physical channel may further include: the resource corresponding to the PDCCH corresponds to the resource set 1. In other words, the resource corresponding to the PDCCH has the same TCI configuration as the resource set 1.

Situation 2: The first goal is resources.

In other words, the first target is m resources, m is an integer greater than or equal to 1, and m is greater than or equal to n.

In this case, step 520: in the case where m resources are changed, the terminal device updates the TCI information of n resources A, and the updated n resources A and the updated m resources have the same TCI configuration.

Among them, the updated n resources A represent n resources A after updating the TCI information. The updated m resources represent the m resources after the resource change, and may also represent the m resources after the TCI is updated.

Take the updated m resources representing the m resources after updating the TCI as an example. Step 520 can be understood as, if the TCI of m resources is updated, the terminal device automatically updates the TCI information of n resources A, and the updated n resources A and the updated m resources have the same TCI configuration. Alternatively, it can also be understood that the TCI update of m resources may also lead to the TCI update of n resources A. For example, m resources are reference signal resources in the TCI-state used for data transmission, and the TCI update of m resources can be understood as a change in the reference signal resource in the TCI-state used for data transmission, or the TCI-state of the reference resource. The reference signal resource in the state changes, and so on.

Optionally, the m resources are resources reported based on the measurement results; or, the m resources are reference signal resources in the TCI-state used for data transmission or reference signal resources in the TCI-state of the reference resource. The reference signal resource in the TCI-state of the reference resource is the reference signal resource in the TCI-state of the reference signal resource in the TCI-state used for data transmission. For example, the reference signal resource in the TCI-state used for data transmission is resource 1, and m resources may represent the reference signal resource in the TCI-state of resource 1.

Optionally, the n resources are resources used for channel measurement; or, the n resources are resources used for beam measurement; or, the n resources are tracking reference signal resources.

It should be understood that the foregoing m resources and n resources can be combined arbitrarily, which is not limited in the embodiment of the present application. It can be understood that if one of the two associated resources is updated, the terminal device automatically updates the other associated resource.

The n resources A and the m resources have the same TCI configuration, and the n resources A may have a one-to-one correspondence with the n resources in the m resources, and each corresponding group of resources has the same TCI configuration. Alternatively, n resources A and m resources have the same TCI configuration, or any resource A in the n resources A corresponds to one or more of the m resources, and each corresponding group of resources has the same TCI Configuration. Alternatively, each resource A in the n resources A belongs to a resource set, that is, n resources A belong to n resource sets, and n resources A and m resources have the same TCI configuration, or n resource sets and The n resources in the m resources have a one-to-one correspondence, and the resources and resource sets corresponding to each other have the same TCI configuration. Alternatively, each resource A in the n resources A belongs to a resource set, that is, n resources A belong to n resource sets, and n resources A and m resources have the same TCI configuration, or they can be in n resource sets Any one resource set corresponds to one or more of the m resources, and the corresponding resources and resource sets have the same TCI configuration.

Illustratively, m is equal to n.

The n resources A and m resources have the same TCI configuration, which can mean that the n resources A and m resources have a one-to-one correspondence, and each corresponding group of resources has the same TCI configuration.

For example, n resources A include resource 1, resource 2, and resource 3, and m resources include resource 4, resource 5, and resource 6. The n resources A and m resources have the same TCI configuration, which can mean that resource 1 and resource 4 have the same TCI configuration, resource 2 and resource 5 have the same TCI configuration, and resource 3 and resource 6 have the same TCI configuration.

It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

Illustratively, m is greater than n.

The n resources A and the m resources have the same TCI configuration, which can mean that the n resources A have a one-to-one correspondence with the n resources in the m resources, and each corresponding group of resources has the same TCI configuration. Alternatively, n resources A and m resources have the same TCI configuration, which can also mean that the n resources A and m resources are one-to-many, and each corresponding group of resources has the same TCI configuration.

Taking n resources A including resource 1 and resource 2, and m resources including resource 4, resource 5, and resource 6 as an example, n resources A and m resources having the same TCI configuration can be in any of the following forms.

In a possible form, n resources A and m resources have the same TCI configuration, which can mean that resource 1 and resource 4 have the same TCI configuration, and resource 2 and resource 5 have the same TCI configuration. Alternatively, n resources A and m resources have the same TCI configuration, which can mean that resource 1 and resource 5 have the same TCI configuration, and resource 2 and resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the n resources A may correspond to any n resources among the m resources, and the embodiment of the present application is not limited thereto.

In another possible form, n resources A and m resources have the same TCI configuration, which can indicate that the resource set to which resource 1 belongs has the same TCI configuration as resource 4, and the resource set to which resource 2 belongs has the same TCI configuration as resource 5. TCI configuration. Alternatively, n resources A and m resources have the same TCI configuration, which can mean that the resource set to which resource 1 belongs has the same TCI configuration as resource 5, and the resource set to which resource 2 belongs has the same TCI configuration as resource 6. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

In another possible form, n resources A and m resources have the same TCI configuration, which can mean that resource 1 and resource 4 and resource 5 have the same TCI configuration, and resource 2 and resource 6 have the same TCI configuration. Alternatively, n resources A and m resources have the same TCI configuration, which can mean that resource 1 and resource 5 have the same TCI configuration, and resource 2 and resource 4 and resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

In another possible form, n resources A and m resources have the same TCI configuration, which can indicate that the resource set to which resource 1 belongs has the same TCI configuration as resource 4 and resource 5, and the resource set and resource to which resource 2 belongs 6 has the same TCI configuration. Or, n resources A and m resources have the same TCI configuration, which can mean that the resource set to which resource 1 belongs has the same TCI configuration as resource 5, and the resource set to which resource 2 belongs has the same TCI as resources 4 and 6 Configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

It should be understood that the above several possible forms are only exemplary descriptions, and the embodiments of the present application are not limited thereto.

Optionally, in case 2, the terminal device may automatically update the TCI information of the resource A based on whether the m resources are changed.

This scenario 2 includes at least the following two scenarios.

Scenario 1, m resources belong to the resources reported by the terminal device based on the measurement result.

Optionally, the n resources A are resources used for channel measurement or beam measurement. In other words, the terminal device can determine whether to automatically update the TCI information of the resource used for channel measurement or beam measurement according to whether the reported resource has changed.

The m resources are updated, including: the index of the m resources reported by the terminal device at the second time and the m resources reported by the terminal device at the first time are not exactly the same, where the first time is earlier than the second time.

That is to say, when the first target is the resource reported by the terminal device, such as the beam management reporting resource, the terminal device can be based on whether the resources reported twice are the same, for example, whether the currently reported resource is exactly the same as the last reported resource. Determine whether to update the TCI information of n resource A. When the currently reported resource is exactly the same as the last reported resource, there is no need to update the TCI information of n resource A; when the currently reported resource is not exactly the same as the last reported resource (at least one resource is different) , The terminal device updates the TCI information of n resource A.

In Scenario 2, the m resources belong to the reference resource used for data transmission, that is, the reference signal resource in the TCI-state used for data transmission, or the reference signal resource in the TCI-state of the reference signal resource.

It should be understood that scenario 2 indicates that m resources are resources referenced by data transmission, or in other words, resources related to data transmission, such as the reference signal resource in the TCI-state used for data transmission, or the TCI-state of the reference signal resource Reference signal resources in, etc., are uniformly represented by resources referenced by data transmission below.

Optionally, the n resources are tracking reference signal resources. In other words, the terminal device can determine whether to automatically update the TCI information tracking the reference signal resource according to whether the resource referenced for data transmission has changed.

The following two scenarios are described in detail in conjunction with FIG. 7.

Optionally, the terminal device may update the TCI information of the n resources A based on the relationship between the n resources A and the m resources.

The n resources A and m resources have the same TCI configuration, and it can be considered that the n resources A and m resources are associated or corresponding. In other words, when m resources are updated, the terminal device automatically updates the TCI information of the n resources A associated with the physical channel, so that the associated n resources A and m resources have the same TCI configuration.

The relationship between n resources A and m resources, in other words, n resources A and m resources have the same TCI configuration, which may be obtained in advance by the terminal device, for example, the network device notifies the terminal device in advance.

Among them, the relationship between n resources A and m resources includes one or more of the following: n resources A correspond to n resources in m resources one-to-one, n resource sets to which n resources A belong and There is a one-to-one correspondence between n resources in the m resources, any resource A in the n resources A corresponds to one or more resources in the m resources, and the resource set to which any resource A in the n resources A belongs is One or more of the m resources correspond to one or more of the resources, n resource A corresponds to the channels of the n resources of the m resources one-to-one, n resource sets to which the n resources A belong and n resources of the m resources One-to-one correspondence between the channels of the n resources A, any one of the n resources A corresponds to the channel of one or more of the m resources, or the resource set to which any one of the n resources A belongs and m resources Correspondence to one or more resources in the channel.

Take n resources A including resource 1 and resource 2, and m resources including resource 4, resource 5, and resource 6 as an example.

There is a one-to-one correspondence between the n resources A and the n resources in the m resources, and the n resources A may be in a one-to-one correspondence with any two resources among the m resources. For example, resource 1 corresponds to resource 4, resource 2 corresponds to resource 6, that is, resource 1 and resource 4 have the same TCI configuration, and resource 2 and resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

The n resources A have a one-to-one correspondence with the n resources in the m resources, and the n resource sets to which the n resources A belong may have a one-to-one correspondence with any two of the m resources. For example, the resource set to which resource 1 belongs corresponds to resource 4, and the resource set to which resource 2 belongs corresponds to resource 6. That is, the resource set to which resource 1 belongs and resource 4 have the same TCI configuration, and the resource set to which resource 2 belongs corresponds to Resource 6 has the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

The n resources A have a one-to-one correspondence with the n resources in the m resources, and any one of the n resources A may correspond to one or more of the m resources. For example, resource 1 corresponds to resource 4 and resource 5, resource 2 corresponds to resource 6, that is, resource 1, resource 4, and resource 5 have the same TCI configuration, and resource 2 and resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

There is a one-to-one correspondence between the n resources A and the n resources in the m resources. It may be that the resource set to which any one resource A of the n resources A belongs corresponds to one or more of the m resources. For example, the resource set to which resource 1 belongs corresponds to resource 4 and resource 5, and the n resource sets to which resource 2 belongs corresponds to resource 6, that is, the resource set to which resource 1 belongs, resource 4 and resource 5 have the same TCI configuration , The resource set to which resource 2 belongs has the same TCI configuration as resource 6. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

There is a one-to-one correspondence between the n resources A and the n resources in the m resources, and the channels of the n resources A and the n resources in the m resources may be in one-to-one correspondence. For example, resource 1 corresponds to the channel of resource 4, and resource 2 corresponds to the channel of resource 6, that is, the channels of resource 1 and resource 4 have the same TCI configuration, and the channels of resource 2 and resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

The n resources A correspond to the n resources of the m resources in a one-to-one correspondence, and the n resource sets to which the n resources A belong may correspond to the channels of the n resources in the m resources. For example, the resource set to which resource 1 belongs corresponds to the channel of resource 4, and the resource set to which resource 2 belongs corresponds to the channel of resource 6. That is to say, the resource set to which resource 1 belongs and the channel of resource 4 have the same TCI configuration. The resource set to which 2 belongs and the channel of resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

The n resources A have a one-to-one correspondence with the n resources in the m resources, and any one of the n resources A may correspond to a channel of one or more of the m resources. For example, resource 1 corresponds to the channel of resource 4 and the channel of resource 5, and resource 2 corresponds to the channel of resource 6, that is, the channel of resource 1, resource 4 and the channel of resource 5 have the same TCI configuration, and resource 2 and The channels of resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

There is a one-to-one correspondence between the n resources A and the n resources in the m resources, and the resource set to which any one resource A of the n resources A belongs corresponds to the channel of one or more of the m resources. For example, the resource set to which resource 1 belongs corresponds to the channel of resource 4 and the channel of resource 5, and the resource set to which resource 2 belongs corresponds to the channel of resource 6, that is, the resource set to which resource 1 belongs, the channel and resource of resource 4 Channel 5 has the same TCI configuration, and the resource set to which resource 2 belongs and the channel of resource 6 have the same TCI configuration. It should be understood that the foregoing is only an exemplary description, and the embodiments of the present application are not limited thereto.

It should be understood that the foregoing examples are only illustrative descriptions, and the embodiments of the present application are not limited thereto.

It should also be understood that resources and resources, or resources and channels, may be associated in any form, and the embodiment of the present application is not limited thereto.

Step 520 is described below in terms of aperiodic, periodic, and semi-static. Take the update of TCI information to update TCI-state as an example for description.

Aperiodic measurement report process

For the aperiodic measurement reporting process, the resource set corresponds to a TCI-state. The terminal device updates the TCI-state corresponding to the n resource A, which can also be understood as that the terminal device updates the TCI-state corresponding to the resource set to which the n resource A belongs. When the TCI-state of the first target is updated, the terminal device updates the TCI-state corresponding to the resource set to which the n resources A belong, so that the resource set and the first target always have the same TCI configuration.

Exemplarily, if a certain resource set (such as the resource set to which n resources A belong) is associated with the first target (that is, has the same TCI configuration), when the TCI-state of the first target is updated, the terminal device Update the TCI-state of the resource set to the updated TCI-state of the first target.

For example, during the initial configuration, the TCI-state configured by the resource set (such as the resource set to which n resources A belong) is the same as the TCI-state of the first target, and both are TCI-state1. After a period of time, the TCI-state of the first target changes. For example, the TCI-state of the first target changes to TCI-state2, and the terminal device updates the TCI-state of the resource set to TCI-state2. For example, after receiving the TCI-state update signaling of the first target, the terminal device updates the TCI-state of the resource set to TCI-state2.

Periodic measurement reporting process

The n resources A in the resource set configured by the network device (that is, some or all of the resources in the resource set) are configured with TCI-state. The n resources A have the same TCI configuration as the first target. When the TCI-state of the first target is updated, the terminal device updates the TCI-states of the n resources A, so that the n resources A and the first target always have the same TCI configuration.

Exemplarily, n resources A are associated with the first target (that is, they have the same TCI configuration). When the TCI-state of the first target is updated, the terminal device updates the TCI-state of the n resource A to The updated TCI-state of the first target.

For example, n is 1. During the initial configuration, the TCI-state configured by resource A is the same as the TCI-state of the first target, and both are TCI-state1. After a period of time, the TCI-state of the first target changes. For example, the TCI-state of the first target changes to TCI-state2, and the terminal device updates the TCI-state of resource A to TCI-state2. For example, after receiving the TCI-state update signaling of the first target, the terminal device updates the TCI-state of resource A to TCI-state2.

The semi-static measurement reporting process is similar to the periodic measurement reporting process, and will not be repeated here.

It should be understood that in the embodiment of this application, if it is an aperiodic measurement report process, the terminal device updates the TCI information of the resource set (that is, the resource to which n resources A belong); if it is a periodic measurement report process or a semi-static measurement report In the process, the terminal device updates the TCI information of n resource A. For the sake of brevity, the following unified expression is to update the TCI information of n resource A.

Optionally, the network device may send instruction information to the terminal device, where the instruction information is used to indicate whether the TCI information can be automatically updated.

In other words, the indication information is used to indicate that when the TCI-state of the first target is updated, the terminal device can automatically update the TCI information of n resources A. Alternatively, it can also be understood that the indication information is used to indicate that the resource or resource set supports the TCI-state automatic update function. Alternatively, it can also be understood that the indication information is used to indicate that the n resources A and the first target have a corresponding or associated relationship.

The indication information can be realized by at least one of the following implementation methods.

A possible implementation can be indicated by parameters.

Exemplarily, a parameter, such as TCIAutoUpdate, can be used to indicate whether the resource or resource set supports the TCI-state automatic update function. For example, when the parameter is configured as: enabled, true, yes, or 1, it means that the resource or resource set supports automatic update of TCI-state; when the parameter is configured as: unavailable When the value is (disabled), false (false), no (no), or 0, it means that the resource or resource set does not support the automatic update of TCI-state.

For example, TCIAutoUpdate can be configured in the resource or TCIAutoUpdate can be associated with the resource, indicating whether the TCI-state of the resource can be automatically updated. For another example, TCIAutoUpdate can be configured in a resourceSet or TCIAutoUpdate can be associated with a resourceSet, indicating whether the TCI-state of the resourceSet can be automatically updated. For another example, TCIAutoUpdate can be configured in resourceConfig or TCIAutoUpdate can be associated with resourceConfig, indicating whether the TCI-state corresponding to the resourceConfig can be automatically updated. For another example, TCIAutoUpdate can be configured in reportConfig or TCIAutoUpdate can be associated with reportConfig, indicating whether the TCI-state corresponding to the reportConfig can be automatically updated. For another example, TCIAutoUpdate can be configured in the trigger state or TCIAutoUpdate can be associated with the trigger state, indicating whether the TCI-state corresponding to the trigger state can be automatically updated. For another example, TCIAutoUpdate can be associated with TCI-state, indicating whether the TCI-state can be automatically updated.

Another possible implementation manner can be indicated by signaling.

Exemplarily, the network device may send indication information to the terminal device, where the indication information is used to indicate that the resource or resource set supports the TCI-state automatic update function.

It should be understood that the foregoing two implementation manners are only exemplary descriptions, and the embodiments of the present application are not limited thereto.

It should also be understood that the method 500 can be used to automatically update the TCI information of the resource used for receiving beam scanning, the method 500 can also be used to automatically update the TCI information of the resource used for sending beam scanning, and the method 500 can also be used to automatically update the TCI information used for the resource. Regarding the TCI information of the channel measured resource, the method 500 can also be used to automatically update the TCI information of the TRS resource. This will be described in conjunction with Figure 6 and Figure 7 respectively.

In the following, the first target is the physical channel and the resource as an example, and the above two situations are respectively introduced in conjunction with FIG. 6 and FIG. 7. For details that are not described in detail, reference may be made to the description of the method 500.

First, with reference to Fig. 6, the physical channel is mainly PDCCH as an example.

FIG. 6 shows a schematic diagram of a method 600 applicable to an embodiment of the present application. The method 600 may include the following steps.

610. The network device sends measurement configuration information to the terminal device.

The measurement configuration information includes n resources A, and the n resources A have the same TCI configuration as the PDCCH.

The measurement configuration information can be used to perform receive beam scanning on the PDCCH beam. In other words, the measurement configuration information can be used to determine the best receive beam corresponding to the PDCCH beam. By way of example and not limitation, the receive beam scanning may be periodic, semi-static, or aperiodic, for example.

For the aperiodic measurement report process, the measurement report process can be triggered by the trigger state, and each trigger state can be associated with one or more resource sets. Among them, at least one resource set has the same TCI configuration as the PDCCH. The n resources A may belong to a resource set, that is, the measurement configuration information may include a resource set, and the resource set may include n resources A. The resource set corresponds to a TCI-state, which can also be understood as the n resources A corresponding to the TCI-state.

Optionally, for the aperiodic measurement reporting process, since the resource set corresponds to one TCI-state, the n resources A and the PDCCH have the same TCI configuration in the form that the resource set to which the n resource A belongs is associated with the PDCCH.

Among them, the resource set and the PDCCH have the same TCI configuration, which can mean that the resource set and the CORESET corresponding to the PDCCH have the same TCI configuration, that is, the TCI-state of the resource set and the TCI-state activated by the CORESET (as described above) As mentioned, each CORESET can be configured with multiple TCI-states, and generally activate one of them) is the same. Alternatively, the resource set and the PDCCH have the same TCI configuration, which may indicate that the TCI-states of the two include the same reference signal resource.

For having the same TCI configuration, reference may be made to the description in method 500, which will not be repeated here.

For the periodic measurement report process or the semi-static measurement report process, the TCI-state of each resource in the resource set is individually configured. The measurement configuration information includes n resources A, each resource A corresponds to a TCI-state, and the TCI-states corresponding to the n resource A may be the same or different.

Optionally, for the periodic measurement reporting process or the semi-static measurement reporting process, since the resources in the resource set are individually configured with TCI-state, the n resources A and the PDCCH have the same TCI configuration in the form of, each resource A It has the same TCI configuration as PDCCH.

When the PDCCH is updated, or in other words, when the TCI-state of the PDCCH is updated, the network device indicates to the terminal device the updated TCI-state of the PDCCH. For example, as the terminal device moves, the channel changes. It should be understood that the embodiment of the application does not limit how the PDCCH is updated.

620: The network device sends an update message to the terminal device.

In other words, the network device sends a PDCCH update message to the terminal device, and the update message is used to update the TCI-state of the PDCCH. Updating the TCI-state of the PDCCH can also be understood as the TCI-state that controls the activation of the resource set has changed. For example, during the initial configuration, the TCI-state that controls the activation of the resource set is TCI-state1 (that is, during the initial configuration, the TCI-state of the PDCCH is TCI-state1). After a period of time, the TCI-state that controls the activation of the resource set becomes TCI-state2 (that is, the TCI-state of the PDCCH becomes TCI-state2), then the network device can send an update message to the terminal device to instruct the terminal device to update the TCI-state of the PDCCH to TCI-state2.

Optionally, the update message can be MAC CE signaling. In other words, the network device can activate a TCI-state through MAC CE, or in other words, the network device can activate a TCI-state of a certain control resource set through MAC CE. .

When the terminal device determines that the TCI-state of the PDCCH is updated, the terminal device automatically updates the TCI-state of n resources A.

630. Based on the update message, the terminal device updates the TCI information of the n resource A.

In other words, after receiving the update message, the terminal device automatically updates the TCI information of n resource A. Alternatively, it can also be understood that the n resource A supports the TCI-state automatic update function, that is, the terminal device can automatically update the TCI information of the n resource A. The terminal device updates the TCI information of the n resource A so that the n resource A and the PDCCH have the same TCI configuration.

For the automatic update, refer to the description in method 500.

Step 630 is described below in terms of aperiodic, periodic, and semi-static. Take the update of TCI information to update TCI-state as an example for description.

Aperiodic measurement report process

The terminal device updates the TCI-state of the n resource A, which can also be understood as the terminal device updates the TCI-state corresponding to the resource set to which the n resource A belongs. The repetition parameter in the resource set configured by the network device may be configured as "on". The resource set has the same TCI configuration as the PDCCH, indicating that the resource set is used for receiving beam scanning of the PDCCH beam. When the TCI-state of the PDCCH is updated, the terminal device updates the TCI-state of the resource set, so that the resource set and the PDCCH always have the same TCI configuration.

For the aperiodic measurement reporting process, the resource set corresponds to a TCI-state. According to the update of the TCI-state of the PDCCH, the terminal device updates the TCI-state corresponding to the corresponding resource set, so that the resource set and the PDCCH always have the same TCI configuration. Specifically, if a resource set (such as the resource set to which n resource A belongs) is associated with the PDCCH (that is, has the same TCI configuration), when the TCI-state of the PDCCH is updated, for example, the TCI of the PDCCH is updated through MAC CE -The state is updated to another TCI-state, and the terminal device updates the TCI-state of the resource set to the TCI-state.

For example, during the initial configuration, the TCI-state configured by the resource set (such as the resource set to which n resources A belong) is the same as the TCI-state that controls the activation of the resource set, and both are TCI-state1. After a period of time, the TCI-state activated by the control resource set changes. For example, the TCI-state activated by the control resource set changes to TCI-state2. After receiving the TCI-state update signaling of the control resource set, the terminal device needs to change the resource The TCI-state of the episode is updated to TCI-state2. In this way, the resource set can continue to be used for receiving beam scanning of the PDCCH beam.

Periodic measurement reporting process

One or more repetition parameters in the resource set configured by the network device may be configured as "on", where n resources A (that is, some or all of the resources in the resource set) are configured with TCI-state. The n resources A and the PDCCH have the same TCI configuration, which means that the resource set can be used for receiving beam scanning of the PDCCH beam. When the TCI-state of the PDCCH is updated, the terminal device updates the TCI-states of the n resources A, so that the n resources A and the PDCCH always have the same TCI configuration.

According to the update of the TCI-state of the PDCCH, the terminal device updates the TCI-state corresponding to the resource A, so that the resource A always has the same TCI configuration as the PDCCH. Specifically, if a certain resource is associated with a PDCCH (that is, it has the same TCI configuration), when the TCI-state of the PDCCH is updated, for example, the TCI-state of the PDCCH is updated to another TCI-state through MAC CE, The terminal device updates the TCI-state of the resource to the TCI-state.

For example, assuming that n is 1, during initial configuration, the TCI-state configured by resource A and the TCI-state activated by the control resource set are the same, and both are TCI-state1. After a period of time, the TCI-state activated by the control resource set changes. For example, the TCI-state activated by the control resource set changes to TCI-state2. After receiving the TCI-state update signaling of the control resource set, the terminal device needs to change the resource The TCI-state of A is updated to TCI-state2. In this way, the resource A can continue to be used for receiving beam scanning of the PDCCH beam.

It should be understood that, in step 630, if it is a non-periodic measurement report process, the terminal device updates the TCI information of the resource set (that is, the resource to which n resources A belong); if it is a periodic measurement report process or a semi-static measurement report process, The terminal device updates the TCI information of n resources A. For the sake of brevity, the following unified expression is to update the TCI information of n resource A.

Optionally, the effective time of the TCI-state after the TCI information of the n resources A is updated is consistent with the effective time of the TCI-state after the PDCCH is updated. For example, after receiving the update message, the terminal device can automatically update the TCI-states corresponding to n resources A after a preset period of time.

It takes a certain time for network equipment to activate the TCI-state of the control resource set through the MAC CE, that is, it takes a period of time for the new TCI-state to take effect after the terminal device receives the MAC-CE. Therefore, the update of the TCI-state of the corresponding resource (that is, the n resource A) or the resource set (that is, the resource set to which the n resource A belongs) should be time consistent with the activation of the TCI-state of the control resource set. That is, the terminal device waits until the TCI-state of the control resource set is activated and takes effect, and then updates the TCI-state of n resource A.

Wherein, the preset duration may be preset, such as preset by the network device or stipulated in the protocol; or, it may also be a preset duration configured by the network device and notified to the terminal device, such as a duration determined based on historical communication conditions.

Optionally, the network device may send indication information to the terminal device, where the indication information is used to indicate that the resource (that is, the n resource A) or the resource set (that is, the resource set to which the n resource A belongs) supports the TCI-state automatic update function. For details, please refer to the description of method 500, which will not be repeated here.

It should be understood that the method 600 is illustrated by taking the physical channel as the PDCCH as an example, and the embodiment of the present application is not limited thereto. For example, the above-mentioned PDCCH may be replaced with PDSCH, PUSCH, or PUCCH.

For example, when the physical channel is PDSCH, the network device can configure multiple TCI-states for the terminal device through RRC signaling, and then activate some of the TCI-states through MAC CE signaling, and finally indicate part of the TCI-state through DCI during data transmission. -One or more of the state. When the TCI-state of the PDSCH changes, the network device can indicate one or more updated TCI-states through DCI, or the network device can activate one or more updated TCI-states through MAC CE. After receiving the DCI or MAC CE, the terminal device updates the TCI information of the resource (that is, n resource A) or the resource set (that is, the resource set to which the n resource A belongs), so that the updated TCI-state and the PDSCH are updated. Or multiple TCI-states are the same, that is, the resource or resource set maintains the same TCI configuration as the PDSCH.

For another example, when the physical channel is the PUCCH, the network device may configure one or more resources for the terminal device, and the one or more resources are associated with the PUCCH. When the TCI-state or spatial relationship of the PUCCH changes, the terminal device automatically updates the TCI-state or spatial relationship of the one or more resources, so that the one or more resources and the associated PUCCH always have the same TCI configuration. Alternatively, the network device may configure one or more resource sets for the terminal device, and the one or more resource sets are associated with the PUCCH. When the TCI-state or spatial relationship of the PUCCH changes, the terminal device automatically updates the TCI-state or spatial relationship of the one or more resource sets, so that the one or more resource sets and the associated PUCCH always have the same TCI Configuration.

For another example, when the physical channel is the PUSCH, the network device may configure one or more resources for the terminal device, and the one or more resources are associated with the PUSCH. When the TCI-state or spatial relationship of the PUSCH changes, the terminal device automatically updates the TCI-state or spatial relationship of the one or more resources, so that the one or more resources and the associated PUSCH always have the same TCI configuration. Alternatively, the network device may configure one or more resource sets for the terminal device, and the one or more resource sets are associated with the PUSCH. When the TCI-state or spatial relationship of the PUSCH changes, the terminal device automatically updates the TCI-state or spatial relationship of the one or more resource sets, so that the one or more resource sets and the associated PUSCH always have the same TCI Configuration.

It should be understood that the method 600 is described by taking the terminal device automatically updating the TCI information of the resources used for receiving beam scanning (ie, n resources A) as an example, and the embodiment of the present application is not limited to this. For example, the method 600 may also be used To automatically update the TCI-state of the resources (ie n resources A) used to transmit beam scanning.

For example, the network device can configure a resource set, which can be used to measure the first target (such as the PDCCH beam, the PDSCH beam, or the best transmission beam reported last time, etc.) and/or several beams around it. Quality. When the first target changes, the terminal device automatically updates the TCI information of the resource set, so that the resource set and the first target maintain the same TCI configuration, so that the resource set can continue to be used to measure the updated first target. The quality of several beams around the target and/or the newly updated first target.

It should be understood that, for content that is not described in detail in the method 600, reference may be made to the description of the method 500, which will not be repeated here.

Through the above technical solution, the terminal device can automatically update the TCI information of the resource or resource set used for receiving beam scanning, or the terminal device can automatically update the TCI information of the resource or resource set used for sending beam scanning, thereby avoiding frequent RRC reconfiguration can reduce signaling overhead and improve data communication performance.

The case where the first target is a physical channel is described above with reference to FIG. 6, and the case where the first target is a resource is described below with reference to FIG. 7.

In the following, in conjunction with FIG. 7, the resource is mainly used as an example of the resource reported by beam management.

FIG. 7 shows a schematic diagram of a method 700 applicable to another embodiment of the present application. The method 700 may include the following steps.

710. The network device sends measurement configuration information to the terminal device.

The measurement configuration information can be used to measure the m best transmission beams and the best reception beams of the m best transmission beams. Wherein, m is an integer greater than or equal to 1, and m is greater than or equal to n.

The measurement configuration information includes a resource set for sending beam scanning, which is marked as resource set 1 for distinction. The repetition parameter in this resource set 1 is configured as "off", which means that the resource set 1 is used to determine m best transmissions. Beam.

The measurement configuration information may also include n resource sets for receiving beam scanning, which are marked as resource set 2 for distinguishing. The repetition parameter in this resource set 2 is configured as "on", indicating that the resource set 2 is used to determine the m The best receiving beams of the m transmission beams (that is, the above m best transmission beams), in other words, the n resource sets 2 are used to determine the best reception beams of the m transmission beams.

It should be understood that the foregoing resource set 1 and resource set 2 may be carried in one measurement configuration information, or may be carried in different measurement configuration information. There is no restriction on this.

The terminal device may determine m transmission beams based on the measurement configuration information, for example, determine m transmission beams by scanning the transmission beam, and report the information of the m transmission beams to the network device. For example, the terminal device reports the resources corresponding to m transmission beams (ie, m resources) to the network device.

How the terminal device determines the reported m resources is not limited in this embodiment of the application. For example, the terminal device measures the resources configured by the network device based on the measurement configuration information, measures the reference signal receiving power (RSRP) of each resource (that is, the beam corresponding to the resource), and then selects m resources with the largest RSRP , Report the m resources to the network device. For another example, the terminal device may also determine m resources based on the signal to interference plus noise ratio (SINR).

Optionally, the method 700 may further include step 720.

720: The terminal device reports the measurement result to the network device.

The terminal device determines the m best transmission beams through measurement, and sends the information of the m best transmission beams to the network device. The information of m beams may include, for example, resources corresponding to m transmission beams, that is, indexes of m resources. The information of the m beams may further include the RSRP corresponding to the m resources, for example. It can be understood that, in step 720, the terminal device may report information about m resources to the network device.

Exemplarily, n resources among the m resources correspond to the n resource sets 2 in the measurement configuration information, and respectively have the same TCI configuration. In other words, each resource is associated with one resource set 2.

For example, n resources in m resources include resource 1, resource 2, resource 3, resource 4, and n resource set 2 includes resource set 21, resource set 22, resource set 23, resource set 24, and resource 1 is associated with resource set 21. Resource 2 is related to resource set 22, Resource 3 is related to resource set 23, and Resource 4 is related to resource set 24. Then, the resource set 21 can be used to determine the best receiving beam of the transmission beam corresponding to resource 1, or some or all of the resources in the resource set 21 can be used to determine the best receiving beam of the transmission beam corresponding to resource 1; Set 22 to determine the best receive beam of the transmit beam corresponding to resource 2, or use some or all of the resources in resource set 22 to determine the best receive beam of the transmit beam corresponding to resource 2; resource set 23 can be used to determine the resource 3 The best receiving beam corresponding to the sending beam, or the best receiving beam of the sending beam corresponding to resource 3 is determined by some or all of the resources in the resource set 23; the sending beam corresponding to resource 4 can be determined through the resource set 24 Or, the best receiving beam of the sending beam corresponding to resource 4 is determined by using some or all of the resources in the resource set 24.

Exemplarily, n resources among the m resources have the same TCI configuration as the n resources A in the measurement configuration information. In other words, each resource is associated with one resource A.

For example, n resources in m resources include resource 1, resource 2, and resource 3. n resources A include resource 4, resource 5, and resource 6, and resource 1 is associated with resource 4, resource 2 is associated with resource 5, and resource 3. Associated resources 6. That is, resource 1 and resource 4 have the same TCI configuration, resource 2 and resource 5 have the same TCI configuration, and resource 3 and resource 6 have the same TCI configuration. Then, resource 4 can be used to determine the best receiving beam of the transmission beam corresponding to resource 1, and resource 5 can be used to determine the best receiving beam of resource 2’s transmission beam, and resource 6 can be used to determine the transmission beam corresponding to resource 3. The best receiving beam.

For the same TCI configuration, reference may be made to the description in method 500, which will not be repeated here.

It should be understood that the foregoing is only an exemplary description, and the embodiment of the present application is not limited thereto. For example, it is also possible that m resources and n resources A have the same TCI configuration. In this case, each resource A can correspond to one or more of the m resources.

For example, among the m resources, n resources include resource 1, resource 2, and resource 3. The n resources A include resource 4 and resource 5, and resource 4 is associated with resource 1 and resource 2, and resource 5 is associated with resource 3. That is, resource 4 has the same TCI configuration as resource 1 and resource 2, and resource 5 and resource 3 have the same TCI configuration. Then, the resource 4 can be used to determine the best receiving beam of the transmission beam corresponding to the resource 1 and the resource 2, and the resource 5 can be used to determine the best receiving beam of the transmission beam corresponding to the resource 3.

Regarding the various correspondences between m resources and n resources A, reference may be made to the description in method 500, which will not be repeated here.

730. Based on whether the m resources reported this time and the m resources reported last time are the same, the terminal device determines whether to update the TCI information of the n resources A.

In other words, based on whether the m resources reported this time are the same as the m resources reported last time, the terminal device determines whether to update the TCI information of the n resource sets 2 or the resources in the n resource sets 2.

Whether the m resources are the same can indicate whether the indexes of the m resources are the same. The update of m resources can indicate that the index of the m resources has changed. For example, if the resources reported this time include resource 1 and resource 3, and the resources reported last time include resource 1 and resource 2, then it can be seen that the resources reported by the terminal device have changed.

It should be understood that in step 730, if it is a non-periodic measurement reporting process, the terminal device updates the TCI information of the resource set (ie n resource sets 2); if it is a periodic measurement reporting process or a semi-static measurement reporting process, the terminal device Update the TCI information of n resources A (that is, resources in n resource set 2). For the sake of brevity, the following is uniformly expressed as updating the TCI information of n resource A.

Updating the TCI information can mean updating the TCI-state, or it can mean updating the reference resource in the TCI-state. Update the TCI information so that the n resources A maintain the same TCI configuration as the first target.

When the m resources reported this time are the same as the m resources reported last time, the terminal device does not update the TCI information of the n resource A. When the m resources reported this time are different from the m resources reported last time (at least One resource is different), the terminal device updates the TCI information of n resource A. Alternatively, it can also be understood that the terminal device can automatically update the TCI information of the n resources A, so that the n resources A and the m resources maintain the same TCI configuration.

For example, m is equal to 2. Assuming that the resources reported by the terminal device this time include resource 1 and resource 3, and the resources reported last time include resource 1 and resource 2, then it can be seen that the resources reported by the terminal device have changed. In this case, the terminal device needs to update the TCI information of the resource A associated with the resource 2 or the resource set associated with the resource 2, so that the resource A or the resource set to which the resource A belongs can be used to perform the receive beam scanning of the resource 3.

Assuming that the resource set associated with resource 2 is resource set 22, the terminal device can update the TCI information of resource set 22.

In a possible implementation manner, the terminal device can change the TCI-state of the resource set 22 to the TCI-state of the resource 3. In another possible implementation manner, the terminal device may modify the reference signal resource included in the TCI-state of the resource set 22 to the reference signal resource included in the TCI-state of resource 3. In another possible implementation manner, the terminal device may modify the reference signal resource included in the TCI-state of the resource set 22 to resource 3, for example, the QCL-info of typeD in the TCI-state of the resource set 22 The reference signal resource is modified to resource 3 and so on.

Optionally, the network device may send instruction information to the terminal device, where the instruction information is used to indicate whether the TCI information can be automatically updated. For details, please refer to the description in the method 500, which will not be repeated here.

Based on the above technical solution, when the resource reported by the terminal device based on the measurement result changes, the terminal device can automatically update the TCI information of the resource used for beam scanning, so that the resource reported by the beam management is the same as the resource used for beam scanning. Always have the same TCI configuration, which can avoid frequent RRC reconfiguration, reduce resource waste and signaling overhead, and improve data transmission performance.

The above description mainly takes n resources A as resources used for beam scanning as an example, and the embodiment of the present application is not limited thereto. Optionally, the n resources A may also be resources used for channel measurement. In other words, the terminal device can automatically update the TCI information of the resource used for channel measurement according to whether the resource reported by the beam management has changed. The following is a brief introduction, and for details, please refer to the description of the above method 500 and method 700.

Channel measurement refers to measuring channel information corresponding to a certain resource, such as channel quality indicator (CQI) and so on. After the terminal device reports the m resources through the beam measurement results, the network device may configure one or more resources to measure channel information of one or more of the m resources before using the m resources for transmission.

When the resource reported by the terminal device changes, based on the embodiment of the present application, the network device does not need to reconfigure the TCI information of the resource used for channel measurement. In other words, when the resource reported by the terminal device changes, the terminal device can automatically update the TCI information of the resource used for channel measurement based on the foregoing method.

Exemplarily, the network device may configure n resources A, and the n resources A are used to measure the channel information of the m resources reported by the terminal device in the beam management phase (ie, by measuring RSRP or SINR, etc.), and n is equal to m.

Each resource A used for channel measurement corresponds to one of the reported m resources and has the same TCI configuration. For example, n resources A include resource 1, resource 2, and resource 3; m resources include resource 4, resource 5, and resource 6. Then resource 1 corresponds to resource 4, that is, resource 1 and resource 4 have the same TCI configuration; resource 2 corresponds to resource 5, that is, resource 2 and resource 5 have the same TCI configuration; resource 3 corresponds to resource 6, that is, resource 3 and Resource 6 has the same TCI configuration.

When the m resources reported in a certain measurement are different from the m resources reported in the previous measurement (partially different or all different), the terminal device can automatically update the TCI information of the corresponding channel measurement resource A, that is, the terminal device can assume The resource A used for channel measurement and its corresponding resource always have the same TCI configuration.

For example, the terminal device reports a total of 4 resources in the beam management phase (that is, by measuring RSRP or SINR, etc.). Suppose the resources reported this time are: resource 1, resource 2, resource 3, and resource 4. The resources reported last time are: resource 1, resource 5, resource 3, and resource 4. It can be seen that when the second resource is not the same as the second resource reported last time, the terminal device automatically updates the TCI information of the channel measurement resource corresponding to the second resource, that is, update resource 5 associated for channel measurement The TCI information of resource A makes the resource A associated with resource 5 for channel measurement and the second resource currently reported (ie resource 2) have the same TCI configuration.

Exemplarily, the network device may configure n resources A, and the n resources A are used to measure the channel information of some of the m resources reported by the terminal device in the beam management phase (ie by measuring RSRP or SINR, etc.), and n is less than m.

For example, n is 1, that is, the network device can configure a resource A, and the resource A can be used to measure the channel information of the first resource among the reported m resources. The first resource may be the best resource among m resources, or the first resource may also be the first resource among m resources, or the first resource may also be the last resource among m resources Resource, or, the first resource may also be any one of the m resources.

For another example, the network device may also configure part of resources A (less than n) to perform channel measurement on part of the reported m resources. When the index of this part of the reported m resources changes, the terminal device can automatically update the TCI information of the resource A of the channel measurement corresponding to this part of the resource, so that the resource A of this part of the channel measurement and the above reported part of the resource have The same TCI configuration. For example, the terminal device reports 4 resources in the beam management phase, and the network device configures 1 resource A for channel measurement on the first resource among the reported 4 resources, and the resource A is associated with the first resource. When the first resource reported in a measurement is different from the first resource reported in the previous measurement, for example, when the index of the best resource changes, the terminal device can automatically update the TCI information of resource A so that resource A is the same as the current one. The reported first resource has the same TCI configuration, that is, the terminal device can assume that resource A always has the same TCI configuration as the reported first resource.

Optionally, the network device may send instruction information to the terminal device, where the instruction information is used to indicate that the terminal device updates the TCI information of the resource used for channel measurement when the TCI-state of the resource reported by the beam management is updated.

It should be understood that the above-mentioned first resource can be replaced with "the best resource", or it can be replaced with the "first resource", or it can be replaced with the "last resource", or it can be replaced with " Any resource".

It should also be understood that the foregoing is only an exemplary description, and the embodiment of the present application is not limited thereto, and any manner that enables the terminal device to automatically update the TCI information of the resource used for channel measurement falls within the protection scope of the embodiment of the present application.

Based on the above technical solution, when the resource reported by the terminal device based on the measurement result changes, the terminal device can automatically update the TCI information of the resource used for channel measurement, so that the resource reported by the beam management is the same as the resource used for channel measurement. Always have the same TCI configuration, which can avoid frequent RRC reconfiguration, reduce resource waste and signaling overhead, and improve data transmission performance.

The above description mainly takes the resource as the resource reported by the beam management as an example, and the embodiment of the present application is not limited thereto. Optionally, the resource can also be a resource referenced by data transmission, and resource A can be a TRS resource, that is, the terminal device can automatically update the TCI information of the TRS resource according to the resource referenced by data transmission. The following is a brief introduction, and for details, please refer to the description of the above method 500 and method 700.

TRS resources can be used to measure the time-frequency offset information of the channel. The TRS resource is also configured with TCI information, and the terminal device measures the time-frequency offset information of a specific beam based on the TCI information of the TRS resource. The time-frequency offset information is suitable for optimizing data transmission. The TCI information of the TRS resource generally has the same TCI configuration as the resource referenced by the data transmission.

For example, the network device configures a TRS resource, and configures the TRS resource to have the same TCI configuration as the resource referenced by the current data transmission. When the resource referenced by data transmission changes, the terminal device can automatically update the TCI information of the aforementioned TRS resource, so that it always has the same TCI configuration as the resource referenced by data transmission. That is, the terminal device may assume that the aforementioned TRS resource always has the same TCI configuration as the resource referenced by the current data transmission.

Assuming that the resource referenced by the terminal device for data transmission is SSB resource #1, the network device needs to configure the reference resource in the TCI-state of TRS as SSB resource #1, and measure the time-frequency offset information of the beam corresponding to SSB resource #1 . If the terminal device moves within the coverage of the beam corresponding to another SSB resource (such as SSB resource #2), the resource referenced for data transmission becomes SSB resource #2. In this case, the terminal device can automatically update the TRS resource TCI information, so that the terminal device can measure the time-frequency offset information of the beam corresponding to SSB resource #2.

Exemplarily, the resource referenced for data transmission may be a reference resource in the TCI-state adopted by any of the following channels: downlink control channel, downlink data channel, uplink control channel, or uplink data channel. For example, the resource referenced for data transmission may be a reference resource in QCL info of type D, or it may also be a reference resource in QCL info of other types. The transmission change of the resource referenced by the data transmission may refer to the change of the reference resource in the TCI-state adopted by any of the following channels.

Exemplarily, the resource referenced by data transmission may also be the resource referenced by the reference resource in the TCI-state adopted by any of the following channels: downlink control channel, downlink data channel, uplink control channel, or uplink data channel. For example, the reference resource in the TCI-state of the downlink control channel is CSI-RS resource #2, and the reference resource in the TCI-state of CSI-RS resource #2 is SSB resource #2, then SSB#2 can also be used as the above data The resource referenced by the transmission. The transmission change of the resource referenced by the data transmission may refer to the change of the resource (such as the SSB resource) referenced by the reference resource in the TCI-state adopted by any of the following channels.

The terminal device can automatically update the TCI information of the TRS resource based on any of the following methods.

Manner 1: The network device configures multiple TRS resources for the terminal device, and the multiple TRS resources have the same TCI configuration as any one of the following channels: downlink control channel, downlink data channel, uplink control channel, or uplink data channel.

When the channel resource changes, the terminal device can automatically update the TCI information of the TRS resource corresponding to the channel, so that the TRS resource and the channel resource always have the same TCI configuration.

Manner 2: The network device configures multiple TRS resources for the terminal device, and the multiple TRS resources correspond to multiple SSB resources one to one.

For example, the network device is configured with 64 SSB resources and 64 TRS resources. The 64 TRS resources correspond to the 64 SSB resources one-to-one, that is, each TRS resource is associated with an SSB resource, and each TRS resource is associated with it. SSB resources have the same TCI configuration.

When the resource (SSB resource) referenced by the terminal device's data transmission changes, the terminal device automatically updates the TRS resource associated with the SSB resource, so that the TRS resource and the resource referenced by the current data transmission always have the same TCI configuration, in other words In other words, the terminal equipment always uses the TRS resource with the same TCI configuration as the resource referenced by the current data transmission to perform time-frequency offset measurement.

For example, the SSB resource configured by the network device includes: SSB resource #2 and SSB resource #3, and the TRS resource configured by the network device includes: TRS resource #2 and TRS resource #3. SSB resource #2 corresponds to TRS resource #2, that is, SSB resource #2 and TRS resource #2 have the same TCI configuration; SSB resource #3 corresponds to TRS resource #3, that is, SSB resource #3 and TRS resource #3 have the same TCI Configuration. Suppose that in the process of starting data transmission, the terminal device refers to SSB resource #2 for data transmission, and uses TRS resource #2 for time-frequency offset measurement. When the SSB resource referenced by data transmission becomes SSB resource #3, the terminal device automatically updates the TRS resource to TRS resource #3, and uses TRS resource #3 to perform time-frequency offset measurement.

Optionally, the network device may send instruction information to the terminal device, where the instruction information is used to indicate that the terminal device updates the TCI information of the TRS resource when the TCI-state of the resource referenced by the data transmission of the terminal device is updated.

It should be understood that the foregoing is only an exemplary description, and the embodiment of the present application is not limited thereto, and any manner that enables the terminal device to automatically update the TCI information of the TRS resource falls within the protection scope of the embodiment of the present application.

It should also be understood that in the foregoing embodiment, several specific scenarios in which n resources are associated with m resources are briefly introduced, and the embodiment of the present application is not limited thereto. When n resources are associated with m resources, no matter what scenario the n resources or m resources are used in, through the method of the embodiment of this application, the terminal device can automatically update n resources when the m resources are changed. The TCI information of the resources makes n resources and m resources have the same TCI configuration.

Based on the above technical solution, when the resource referenced by the data transmission of the terminal device changes, the terminal device can automatically update the TCI information of the TRS resource, so that the resource referenced by the data transmission and the TRS resource (that is, used for time-frequency offset) The measured resources always have the same TCI configuration, which can avoid frequent TRS resource reconfiguration, reduce resource waste and signaling overhead, and improve network performance.

Based on the above description, in the solution provided by the embodiments of the present application, when the TCI-state of the physical channel is updated, or when the resource is changed, the terminal device can automatically update the TCI of the resource associated with the physical channel or resource. Information, so that the resource and the physical channel or resource have the same TCI configuration, avoiding signaling overhead and transmission delay caused by frequent reconfiguration, and improving data communication performance.

The various embodiments described in this document may be independent solutions, or may be combined according to internal logic, and these solutions fall within the protection scope of the present application.

It is understandable that, in the foregoing method embodiments, the methods and operations implemented by terminal devices can also be implemented by components (such as chips or circuits) that can be used in terminal devices, and the methods and operations implemented by network devices can also be implemented by It can be implemented by components (such as chips or circuits) of network devices.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of each interaction. It can be understood that each network element, such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above functions. Those skilled in the art should be aware that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiments of the present application can divide the transmitter device or the receiver device into functional modules according to the above method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. in. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of using the corresponding functional modules to divide each functional module.

Above, the method provided by the embodiment of the present application has been described in detail with reference to FIGS. 5 to 7. Hereinafter, the communication device provided by the embodiment of the present application will be described in detail with reference to FIG. 8 to FIG. 11. It should be understood that the description of the device embodiment and the description of the method embodiment correspond to each other. Therefore, for the content that is not described in detail, please refer to the above method embodiment. For brevity, details are not repeated here.

FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in the figure, the communication device 800 may include a communication unit 810 and a processing unit 820. The communication unit 810 can communicate with the outside, and the processing unit 820 is used for data processing. The communication unit 810 may also be referred to as a communication interface or a transceiving unit.

In a possible design, the communication device 800 can implement the steps or processes performed by the terminal device corresponding to the above method embodiment, for example, it can be a terminal device, or a chip or circuit configured in the terminal device. At this time, the communication device 800 may be called a terminal device. The communication unit 810 is configured to perform the transceiving-related operations on the terminal device side in the above method embodiment, and the processing unit 820 is configured to perform the processing related operations on the terminal device in the above method embodiment.

In a possible implementation manner, the communication unit 810 is configured to: receive measurement configuration information sent by a network device, the measurement configuration information includes information about n resources, and the n resources have the same transmission configuration indication TCI configuration as the physical channel, where: n is an integer greater than 1 or equal to 1; the processing unit 820 is used to update the TCI information of n resources when the TCI-state of the physical channel is updated. After the update, the n resources are the same as the physical channel TCI configuration.

Optionally, the processing unit 820 is specifically configured to update the TCI information of the n resources based on the relationship between the n resources and the physical channels.

Optionally, the relationship between n resources and physical channels includes one or more of the following: a correspondence relationship between a physical channel and n resources; or a correspondence relationship between a physical channel and a resource set to which the n resources belong; or, The corresponding relationship between the resource corresponding to the physical channel and the n resources; or the corresponding relationship between the resource corresponding to the physical channel and the resource set to which the n resources belong.

Optionally, the processing unit 820 is specifically configured to: update the TCI-state of the n resources; or, update the TCI-state of the resource set to which the n resources belong; or, update the reference signal included in the TCI-state of the n resources Resource; or, update the reference signal resource included in the TCI-state of the resource set to which the n resources belong.

Optionally, the communication unit 810 is further configured to: receive instruction information sent by the network device, where the instruction information is used to indicate whether the TCI information of the n resources can be automatically updated.

Optionally, the same TCI configuration includes one or more items: the index of the TCI-state is the same, the reference signal resources included in the TCI-state are the same, or the TCI-state has an inclusion relationship.

Optionally, the physical channel includes one or more of the following: a physical downlink control channel, a physical downlink shared channel, a physical uplink control channel, or a physical uplink shared channel.

In yet another possible implementation manner, the communication unit 810 is configured to: receive information about n resources sent by a network device, where n resources and m resources have the same transmission configuration indication TCI configuration, where n is greater than or equal to 1. M is an integer greater than 1 or equal to 1, and n is less than or equal to m; the processing unit 820 is used to update the TCI information of n resources when m resources are updated. After the update, n resources and The m resources have the same TCI configuration.

Optionally, the m resources include any one of the following: a resource reported based on a measurement result, a reference signal resource in the TCI-state used for data transmission, or a TCI-state of the reference signal resource in the TCI-state used for data transmission And/or, the n resources include any one of the following: resources used for channel measurement, resources used for beam measurement, or tracking reference signal resources.

Optionally, when m resources are resources reported based on measurement results; the situation where m resources are updated includes: m resources reported based on the measurement results at the second moment and m resources reported based on the measurement results at the first moment The indexes of the two resources are not exactly the same, where the first moment is earlier than the second moment.

Optionally, the processing unit 820 is specifically configured to update the TCI information of the n resources based on the relationship between the n resources and the m resources.

Optionally, the relationship between n resources and m resources includes one or more of the following: n resources correspond to n resources out of m resources one-to-one; or, n resource sets to which the n resources belong One-to-one correspondence with n resources among the m resources; or, any one resource among the n resources corresponds to one or more resources among the m resources; or, the resource set to which any one resource among the n resources belongs One-to-one correspondence with one or more resources among m resources; or, one-to-one correspondence between n resources and channels of n resources among m resources; or, n resource sets and m resources to which n resources belong The channels of the n resources in the n resources correspond one-to-one; or, any one of the n resources corresponds to the channel of one or more of the m resources; or, the resource set to which any one of the n resources belongs Corresponding to the channel of one or more of the m resources; wherein each corresponding group has the same TCI configuration.

The communication device 800 can implement the steps or processes performed by the terminal device in the method 500 to the method 700 according to the embodiments of the present application, and the communication device 800 can include methods for executing the method 500 in FIG. 5 and the method in FIG. 6 600 or a unit of the method executed by the terminal device in the method 700 in FIG. 7. In addition, the units in the communication device 800 and other operations and/or functions described above are used to implement the corresponding processes of the method 500 in FIG. 5, the method 600 in FIG. 6, or the method 700 in FIG. 7, respectively.

Wherein, when the communication device 800 is used to execute the method 500 in FIG. 5, the communication unit 810 can be used to execute step 510 in the method 500, and the processing unit 820 can be used to execute step 520 in the method 500.

Wherein, when the communication device 800 is used to execute the method 600 in FIG. 6, the communication unit 810 can be used to execute steps 610 and 620 in the method 600, and the processing unit 820 can be used to execute step 630 in the method 600.

Wherein, when the communication device 800 is used to execute the method 700 in FIG. 7, the communication unit 810 can be used to execute steps 710 and 720 in the method 700, and the processing unit 820 can be used to execute step 730 in the method 700.

It should be understood that the specific process for each unit to execute the foregoing corresponding steps has been described in detail in the foregoing method embodiment, and is not repeated here for brevity.

It should also be understood that the communication unit 810 in the communication device 800 may be implemented by the transceiver 1010 in the terminal device 1000 shown in FIG. 10, and the processing unit 820 in the communication device 800 may be implemented by the terminal device 1000 shown in FIG. The processor 1020 in 1000 is implemented. Among them, the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.

It should also be understood that the communication unit 810 in the communication device 800 may also be an input/output interface.

In another possible design, the communication device 800 can implement the steps or processes executed by the network device corresponding to the above method embodiment, for example, it can be a network device, or a chip or circuit configured in the network device. At this time, the communication device 800 may be called a network device. The communication unit 810 is configured to perform the transceiving-related operations on the network device side in the above method embodiment, and the processing unit 820 is configured to perform the processing related operations on the network device in the above method embodiment.

The communication device 800 can implement the steps or processes executed by the network device in the method 500 to the method 700 according to the embodiments of the present application. The communication device 800 can include methods for executing the method 500 in FIG. 5 and the method in FIG. 6 600 or the unit of the method executed by the network device in the method 700 in FIG. 7. In addition, the units in the communication device 800 and other operations and/or functions described above are used to implement the corresponding processes of the method 500 in FIG. 5, the method 600 in FIG. 6, or the method 700 in FIG. 7, respectively.

Wherein, when the communication device 800 is used to execute the method 500 in FIG. 5, the communication unit 810 may be used to execute step 510 in the method 500.

Wherein, when the communication device 800 is used to execute the method 600 in FIG. 6, the communication unit 810 may be used to execute step 610 and step 620 in the method 600.

Wherein, when the communication device 800 is used to execute the method 700 in FIG. 7, the communication unit 810 may be used to execute step 710 and step 720 in the method 700.

It should also be understood that the communication unit 810 in the communication device 800 can be implemented through the transceiver 1110 in the network device 1100 shown in FIG. 11, and the processing unit 820 in the communication device 800 can be implemented through the network shown in FIG. The processor 1120 in the device 1100 is implemented.

It should also be understood that the communication unit 810 in the communication device 800 may also be an input/output interface. Among them, the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.

FIG. 9 is another schematic block diagram of a communication device 900 provided by an embodiment of the present application. As shown in the figure, the communication device 900 includes a processor 910, a memory 920, and a transceiver 930. The memory 920 stores a program. The processor 910 is configured to execute the program stored in the memory 920 and execute the program stored in the memory 920. The processor 910 is configured to execute the relevant processing steps in the above method embodiment, and execute the program stored in the memory 920, so that the processor 910 controls the transceiver 930 to execute the transceiving-related steps in the above method embodiment.

As an implementation, the communication device 900 is used to execute the actions performed by the terminal device in the above method embodiment. At this time, the execution of the program stored in the memory 920 enables the processor 910 to execute the above method embodiment. The processing steps on the terminal device side in the middle, execute the program stored in the memory 920, so that the processor 910 controls the transceiver 930 to perform the receiving and sending steps on the terminal device side in the above method embodiment.

As another implementation, the communication device 900 is used to perform the actions performed by the network device in the above method embodiment. At this time, the execution of the program stored in the memory 920 enables the processor 910 to perform the above method implementation. In the example, the processing steps on the network device side execute the programs stored in the memory 920 so that the processor 910 controls the transceiver 930 to perform the receiving and sending steps on the network device side in the above method embodiments.

An embodiment of the present application also provides a communication device 1000, which may be a terminal device or a chip. The communication apparatus 1000 may be used to perform the actions performed by the terminal device in the foregoing method embodiments.

When the communication device 1000 is a terminal device, FIG. 10 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate. In FIG. 10, the terminal device uses a mobile phone as an example. As shown in Figure 10, the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 10. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.

As shown in FIG. 10, the terminal device includes a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 may also be referred to as a transceiver, a transceiver, a transceiver, and so on. The processing unit 1020 may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 1010 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1010 as the sending unit, that is, the transceiver unit 1010 includes a receiving unit and a sending unit. The transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, receiver, or receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

For example, in an implementation manner, the processing unit 1020 is configured to perform step 520 in the method 500, step 630 in the method 600, and step 730 in the method 700, and/or the processing unit 1020 is further configured to perform this Other processing steps on the terminal device side in the application embodiment. The transceiving unit 1010 is also used to perform step 510 in method 500, step 610 and step 620 in method 600, step 710 and step 720 in method 700, and/or transceiving unit 1010 is also used to perform other transceiving on the terminal device side step.

It should be understood that FIG. 10 is only an example and not a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 10.

When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.

The embodiment of the present application also provides a communication device 1100, and the communication device 1100 may be a network device or a chip. The communication device 1100 can be used to perform actions performed by a network device in the foregoing method embodiments.

When the communication device 1100 is a network device, for example, it is a base station. Figure 11 shows a simplified schematic diagram of the base station structure. The base station includes 1110 parts and 1120 parts. The 1110 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 1120 part is mainly used for baseband processing and control of base stations. The 1110 part can generally be called a transceiver unit, transceiver, transceiver circuit, or transceiver. The 1120 part is usually the control center of the base station, and may generally be referred to as a processing unit, which is used to control the base station to perform processing operations on the network device side in the foregoing method embodiments.

The transceiver unit of part 1110 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing. Optionally, the device for implementing the receiving function in part 1110 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 1110 includes the receiving unit and the sending unit. The receiving unit may also be called a receiver, a receiver, or a receiving circuit, and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.

Part 1120 may include one or more single boards, and each single board may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, the boards can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.

For example, in one implementation, the transceiver unit of part 1110 is used to perform step 510 in method 500, step 610 and step 620 in method 600, step 710 in method 700 and step 720 in the network device side transceiving operations , And/or part 1110 of the transceiver unit is also used to perform other transceiver steps on the network device side in the embodiment of the present application. The processing unit part 1120 is used to execute the processing steps on the network device side in the embodiment of the present application.

It should be understood that FIG. 11 is only an example and not a limitation, and the foregoing network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 11.

When the communication device 1100 is a chip, the chip includes a transceiver unit and a processing unit. Among them, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.

In addition, the network equipment is not limited to the above forms, and may also be in other forms: for example: including BBU and adaptive radio unit (ARU), or BBU and active antenna unit (AAU); or Customer premises equipment (CPE) may also be in other forms, which is not limited by this application.

The above-mentioned BBU can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device. For details, please refer to the description in the previous method embodiment, which will not be repeated here.

The embodiment of the present application also provides a processing device, including a processor and an interface. The processor may be used to execute the method in the foregoing method embodiment.

It should be understood that the foregoing processing device may be a chip. For example, the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.

In the implementation process, the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components . The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

According to the method provided by the embodiments of the present application, the present application also provides a computer program product. The computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the steps shown in FIGS. 5 to 7 The method of any one of the embodiments is shown.

According to the method provided by the embodiments of the present application, the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes the steps shown in FIGS. 5 to 7 The method of any one of the embodiments is shown.

According to the method provided in the embodiments of the present application, the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.

The network equipment in the above device embodiments corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps. For example, the communication unit (transceiver) performs the receiving or sending in the method embodiments. In addition to sending and receiving, other steps can be executed by the processing unit (processor). For the functions of specific units, refer to the corresponding method embodiments. There may be one or more processors.

The terms "component", "module", "system", etc. used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor. Through the illustration, both the application running on the computing device and the computing device can be components. One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed between two or more computers. In addition, these components can be executed from various computer readable media having various data structures stored thereon. The component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.

Those of ordinary skill in the art may realize that the various illustrative logical blocks and steps described in the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. achieve. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

A method for updating transmission configuration indication TCI information, characterized in that it comprises:

Receiving measurement configuration information sent by a network device, where the measurement configuration information includes information about n resources, and the n resources and the physical channel have the same transmission configuration indication TCI configuration, where n is an integer greater than or equal to 1;

When the TCI state TCI-state of the physical channel is updated, the TCI information of the n resources is updated. After the update, the n resources have the same TCI configuration as the physical channel.
The method according to claim 1, wherein:

The updating the TCI information of the n resources includes:

Based on the relationship between the n resources and the physical channel, the TCI information of the n resources is updated.
The method according to claim 2, wherein the relationship between the n resources and the physical channel includes one or more of the following:

The correspondence between the physical channel and the n resources;

The correspondence between the physical channel and the resource set to which the n resources belong;

The corresponding relationship between the resource corresponding to the physical channel and the n resources; or,

A correspondence between the resource corresponding to the physical channel and the resource set to which the n resources belong.
The method according to any one of claims 1 to 3, wherein the physical channel comprises one or more of the following:

Physical downlink control channel, physical downlink shared channel, physical uplink control channel, or physical uplink shared channel.
A method for updating transmission configuration indication TCI information, characterized in that it comprises:

Receive information about n resources sent by a network device, the n resources and m resources have the same transmission configuration indication TCI configuration, where n is an integer greater than or equal to 1, and m is an integer greater than or equal to 1. , N is less than or equal to m;

In the case where the m resources are updated, the TCI information of the n resources is updated. After the update, the n resources and the m resources have the same TCI configuration.
The method of claim 5, wherein:

The m resources include any one of the following: resources reported based on measurement results, reference signal resources in the TCI-state used for data transmission, or reference signal resources in the TCI-state used for data transmission. Reference signal resources; and/or,

The n resources include any one of the following: resources used for channel measurement, resources used for beam measurement, or tracking reference signal resources.
The method according to claim 6, wherein when the m resources are resources reported based on measurement results;

The update of the m resources includes:

The indexes of the m resources reported based on the measurement result at the second time are not exactly the same as the indexes of the m resources reported based on the measurement result at the first time, wherein the first time is earlier than the second time.
The method according to any one of claims 5 to 7, characterized in that:

The updating the TCI information of the n resources includes:

Based on the relationship between the n resources and the m resources, update the TCI information of the n resources.
The method according to claim 8, wherein the relationship between the n resources and the m resources includes one or more of the following:

The n resources have a one-to-one correspondence with n resources in the m resources;

The n resource sets to which the n resources belong and the n resources in the m resources have a one-to-one correspondence;

Any one resource among the n resources corresponds to one or more resources among the m resources;

The resource set to which any one of the n resources belongs corresponds to one or more of the m resources;

The n resources correspond to channels of the n resources in the m resources in a one-to-one correspondence;

The n resource sets to which the n resources belong are in one-to-one correspondence with channels of the n resources in the m resources;

Any one of the n resources corresponds to a channel of one or more of the m resources; or,

A resource set to which any one of the n resources belongs corresponds to a channel of one or more of the m resources;

Among them, each corresponding group has the same TCI configuration.
The method according to any one of claims 1 to 9, characterized in that,

The updating the TCI information of the n resources includes one or more of the following:

Update the TCI-state of the n resources;

Updating the TCI-state of the resource set to which the n resources belong;

Update the reference signal resources included in the TCI-state of the n resources; or,

Update the reference signal resources included in the TCI-state of the resource set to which the n resources belong.
The method according to any one of claims 1 to 10, wherein the method further comprises:

Receiving instruction information sent by the network device, where the instruction information is used to indicate whether the TCI information of the n resources can be automatically updated.
The method according to any one of claims 1 to 11, wherein the same TCI configuration includes one or more:

The indexes of the TCI-state are the same, the reference signal resources included in the TCI-state are the same, or the TCI-state has an inclusion relationship.
A communication device, characterized by comprising: a communication unit and a processing unit,

The communication unit is configured to receive measurement configuration information sent by a network device, the measurement configuration information includes information about n resources, and the n resources have the same transmission configuration indication TCI configuration as the physical channel, where n is greater than 1 or an integer equal to 1;

The processing unit is configured to update the TCI information of the n resources when the TCI-state of the physical channel is updated. After the update, the n resources and the physical channel have the same TCI configuration.
The device according to claim 13, wherein:

The processing unit is specifically used for:

Based on the relationship between the n resources and the physical channel, the TCI information of the n resources is updated.
The apparatus according to claim 14, wherein the relationship between the n resources and the physical channel comprises one or more of the following:

The correspondence between the physical channel and the n resources;

The correspondence between the physical channel and the resource set to which the n resources belong;

The corresponding relationship between the resource corresponding to the physical channel and the n resources; or,

A correspondence between the resource corresponding to the physical channel and the resource set to which the n resources belong.
The device according to any one of claims 13 to 15, wherein the physical channel comprises one or more of the following:

Physical downlink control channel, physical downlink shared channel, physical uplink control channel, or physical uplink shared channel.
A communication device, characterized by comprising: a communication unit and a processing unit,

The communication unit is configured to receive information about n resources sent by a network device, the n resources and m resources have the same transmission configuration indication TCI configuration, where n is an integer greater than or equal to 1, and m is An integer greater than or equal to 1, and n is less than or equal to m;

The processing unit is configured to update the TCI information of the n resources when the m resources are updated. After the update, the n resources and the m resources have the same TCI configuration.
The device according to claim 17, wherein:

The m resources include any one of the following: resources reported based on measurement results, data transmission used

The reference signal resource in the TCI-state, or the reference signal resource in the TCI-state used for data transmission; and/or,

The n resources include any one of the following: resources used for channel measurement, resources used for beam measurement, or tracking reference signal resources.
The apparatus according to claim 18, wherein when the m resources are resources reported based on measurement results;

The update of the m resources includes:

The indexes of the m resources reported based on the measurement result at the second time are not exactly the same as the indexes of the m resources reported based on the measurement result at the first time, wherein the first time is earlier than the second time.
The device according to any one of claims 17 to 19, characterized in that:

The processing unit is specifically used for:

Based on the relationship between the n resources and the m resources, update the TCI information of the n resources.
The apparatus according to claim 20, wherein the relationship between the n resources and the m resources comprises one or more of the following:

The n resources have a one-to-one correspondence with n resources in the m resources;

The n resource sets to which the n resources belong are in one-to-one correspondence with the n resources in the m resources;

Any one resource among the n resources corresponds to one or more resources among the m resources;

The resource set to which any one of the n resources belongs corresponds to one or more of the m resources;

The n resources have a one-to-one correspondence with channels of the n resources among the m resources;

The n resource sets to which the n resources belong are in one-to-one correspondence with channels of the n resources in the m resources;

Any one of the n resources corresponds to a channel of one or more of the m resources; or,

A resource set to which any one of the n resources belongs corresponds to a channel of one or more of the m resources;

Among them, each corresponding group has the same TCI configuration.
The device according to any one of claims 13 to 21, characterized in that:

The updating the TCI information of the n resources includes one or more of the following:

Update the TCI-state of the n resources;

Updating the TCI-state of the resource set to which the n resources belong;

Update the reference signal resources included in the TCI-state of the n resources; or,

Update the reference signal resources included in the TCI-state of the resource set to which the n resources belong.
The device according to any one of claims 13 to 22, wherein the communication unit is further configured to:

Receiving instruction information sent by the network device, where the instruction information is used to indicate whether the TCI information of the n resources can be automatically updated.
The device according to any one of claims 13 to 23, wherein the same TCI configuration includes one or more:

The index of the TCI-state is the same, the reference signal resources included in the TCI-state are the same, or the TCI-state has an inclusion relationship.
A communication device, characterized in that it comprises:

Memory, used to store computer instructions;

The processor is configured to execute computer instructions stored in the memory, so that the communication device executes the method according to any one of claims 1 to 12.
A chip system, characterized in that it includes:

Memory, used to store computer programs;

The processor is configured to call and run the computer program from the memory, so that the communication device installed with the chip system executes the method according to any one of claims 1 to 12.
A processing device, characterized by comprising at least one processor configured to execute a computer program stored in a memory, so that the device realizes the method according to any one of claims 1 to 12 .
A processing device, characterized in that it comprises:

Communication interface, used to input and/or output information;

The processor is configured to execute a computer program, so that the device implements the method according to any one of claims 1 to 12.
A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by a communication device, the communication device executes the method according to any one of claims 1 to 12.
A computer program product, characterized in that it contains instructions thereon, which when executed by a computer causes a communication device to execute the method according to any one of claims 1 to 12.