WO2022007967A1

WO2022007967A1 - Reference signal resource configuration method and apparatus

Info

Publication number: WO2022007967A1
Application number: PCT/CN2021/105629
Authority: WO
Inventors: 管鹏
Original assignee: 华为技术有限公司
Priority date: 2020-07-10
Filing date: 2021-07-10
Publication date: 2022-01-13
Also published as: CN113923780A

Abstract

The present application provides a reference signal resource configuration method and apparatus. The method comprises: a terminal receives a transmission configuration index state (TCI state) issued by a network device, the TCI state comprising uplink reference signal resources, and if the uplink reference signal resources are all reference signal resources for multiple ports, the TCI state being also used for indicating an antenna panel corresponding to multiple antenna ports of the terminal; the terminal uses the antenna panel corresponding to the multiple antenna ports to send an uplink signal or channel by means of a transmitting beam of the uplink reference signal resources, or receive a downlink signal or channel by means of a receiving beam corresponding to the transmitting beam of the uplink reference signal resources. The above-mentioned method facilitates determining a suitable antenna panel and beam for subsequent signal transmission by the terminal according to the TCI state issued by the network device.

Description

A method and apparatus for configuring reference signal resources

technical field

The present application relates to the field of communications, and more particularly, to a method and apparatus for configuring reference signal resources.

Background technique

In high-frequency communication systems, in order to overcome path loss, network equipment and terminal equipment usually use directional high-gain antenna arrays to form analog beams for communication. Only when the directions of sending and receiving are aligned, normal communication between the network device and the terminal device can be achieved. For example, in downlink communication (transmission by the network device, reception by the terminal device), the transmission beam of the network device and the reception beam of the terminal device need to be aligned. In uplink communication (receiving by the network device and sending by the terminal device), the receive beam of the network device and the transmit beam of the terminal device need to be aligned. The transmission beam of the network device and the reception beam of the terminal device that are aligned may be referred to as a downlink beam pair, or a downlink beam for short. The receiving beam of the network device and the transmitting beam of the terminal device that are aligned may be referred to as an uplink beam pair, or an uplink beam for short.

The network device can instruct the terminal device how to receive the downlink physical channel or the downlink physical signal, and can also instruct the terminal device how to send the uplink physical channel or the uplink physical signal. The network equipment can perform downlink beam indication or uplink beam indication for terminal equipment through beam indication signaling, such as high layer signaling (eg RRC, MAC-CE) and/or physical layer signaling (eg DCI). The indication of the downlink beam is based on the transmission configuration index state (TCI state), and the indication of the uplink beam is based on the spatial relation.

The terminal device can determine the appropriate receive beam according to the reference signal in the TCI state sent by the network device. Currently, the only reference signals in the TCI state are SSB and CSI-RS, which are both downlink reference signals. The uplink reference signal, such as the sounding reference signal (SRS), cannot be used as the reference signal in the downlink TCI state. receive beam.

In addition, the terminal device may include multiple antenna ports and multiple antenna panels. In this case, there is no fixed binding relationship between the antenna port and the antenna panel of the terminal device. Therefore, the terminal device cannot determine the appropriate antenna panel and beam.

SUMMARY OF THE INVENTION

The present application provides a method and apparatus for configuring reference signal resources, which facilitates a terminal device (terminal for short) to determine an appropriate antenna panel and beam according to the TCI state delivered by the network device.

The terminal receives the TCI state issued by the network device, and the TCI state includes uplink reference signal resources. If the uplink reference signal resources are multi-port reference signal resources, the TCI state is also used to indicate multiple An antenna panel connected to an antenna port; the terminal uses the antenna panel connected to the multiple antenna ports to send an uplink signal or channel through the transmission beam of the uplink reference signal resource, or use the transmission beam of the uplink reference signal resource corresponding to The receiving beam of the terminal receives downlink signals or channels; that is, the terminal uses the antenna panel indicated by the TCI state, and transmits subsequent signals or channels through the beams corresponding to the uplink reference signal resources.

In an example, the TCI state includes the identifier of the uplink reference signal resource, and the terminal performs subsequent signal or channel transmission through the beam corresponding to the identifier of the uplink reference signal resource.

In another example, if the uplink reference signal resource is a single-port resource, the terminal uses the same antenna panel and transmit beam as the uplink reference signal resource to transmit the uplink signal or channel, or uses the antenna panel and the uplink The receive beams corresponding to the transmit beams of the reference signal resources are used to receive downlink signals or channels.

Correspondingly, the network device sends the TCI state to the terminal, and receives the uplink signal or channel sent by the terminal using the antenna panels connected to the multiple antenna ports and through the transmission beam of the uplink reference signal resource.

In combination with the above solution, the uplink reference signal resources are one or more, that is, the identifiers of the uplink reference signal resources included in the TCI state are one or more, and there are two or more identifiers.

In combination with the above solution, the terminal includes multiple antenna panels and multiple antenna ports, and the number of antenna panels may be greater than the number of antenna ports, and may also be less than or equal to the number of antenna ports.

The TCI state may indicate that multiple antenna ports of the terminal are connected to the same antenna panel, or may indicate that multiple antenna ports of the terminal are connected to different antenna panels.

If the uplink reference signal resource is sent by one port, it indicates that the resource is a single-port resource, or if the uplink reference signal resource is sent by multiple antenna ports, it indicates that the resource is a multi-port resource.

Combined with the above solution, the TCI state can indicate the antenna panels connected to multiple antenna ports of the terminal in two ways:

1, the TCI state includes the mapping relationship index from the antenna port to the antenna panel;

2, the TCI state includes a port number corresponding to each uplink reference signal resource, for example: the TCI state includes a plurality of uplink reference signal resources, and each uplink reference signal resource corresponds to a port number;

The following examples illustrate:

The uplink reference signal resource is an SRS resource as an example, assuming that the TCI state includes SRS resource 1 and SRS resource 5, and both SRS resource 1 and SRS resource 5 are two-port resources, and the terminal includes antenna port 1 and antenna port 2 . The antenna port here is equivalent to the RF channel and can be replaced with the RF channel.

If the TCI state includes the index of the mapping relationship between the antenna port and the antenna panel, it is possible to know which antenna panel is connected to the antenna port 1 and the antenna port 2 by checking the general table of the mapping relationship between the antenna port and the antenna panel. For example, if antenna port 1 and antenna port 2 are connected to antenna panel 1 and antenna panel 2 respectively, the terminal uses the beams corresponding to

antenna panels

1 and 2 and SRS resources 1 and 5 to transmit subsequent signals. That is, the terminal uses the transmit beams of the antenna panel 1 and the SRS resource 1 to transmit uplink signals or channels, or uses the receive beams corresponding to the transmit beams of the antenna panel 1 and the SRS resource 1 to receive downlink signals or channels. Similarly, the terminal uses the transmit beams of antenna panel 2 and SRS resource 5 to transmit uplink signals or channels, or the terminal uses the receive beams corresponding to the transmit beams of antenna panel 2 and SRS resource 5 to receive downlink signals or channels.

If the antenna port 1 and the antenna port 2 are connected to the same antenna panel, for example, both are connected to the antenna panel 1, the beams corresponding to the antenna surface 1 and the SRS resources 1 and 5 are used to transmit subsequent signals. That is, the terminal uses the transmit beams of the antenna panel 1 and the SRS resource 1 to transmit uplink signals or channels, or uses the receive beams corresponding to the transmit beams of the antenna panel 1 and the SRS resource 1 to receive downlink signals or channels. Similarly, the terminal uses the transmit beams of antenna panel 1 and SRS resource 5 to send uplink signals or channels, or the terminal uses the receive beams corresponding to the transmit beams of antenna panel 1 and SRS resource 5 to receive downlink signals or channels.

If the TCI state includes a port number corresponding to each uplink reference signal resource, that is, the TCI state includes a plurality of identifiers of uplink reference signal resources, and the identifier of each uplink reference signal resource corresponds to an antenna port number. For example: TCI state includes SRS resources 1, 5, and

antenna port numbers

1 and 2; where SRS resource 1 corresponds to antenna port 1, and SRS resource 5 corresponds to antenna port 2; then the terminal uses the antenna ports that send SRS resources 1 and 5 to connect The antenna panel and the beams corresponding to the SRS resources 1 and 5 perform subsequent signal transmission. That is: the terminal uses the antenna panel connected to the antenna port 1 for sending SRS resource 1 and the transmission beam of the SRS resource 1 to send the uplink signal or channel; or the terminal uses the antenna panel for sending SRS resource 1 connected to the antenna port 1 and the SRS resource. The receive beam corresponding to the transmit beam of 1 receives the downlink signal or channel. Similarly, use the antenna panel connected to the antenna port 2 that transmits SRS resource 5, and the transmit beam of SRS resource 5 to transmit uplink signals or channels; or use the antenna panel that transmits SRS resource 5 to connect to the antenna port 2, and The receive beam corresponding to the transmit beam receives the downlink signal or channel. Further, antenna port 1 of SRS resource 1 and antenna port 2 of SRS resource 5 may be connected to the same antenna panel or different antenna panels; usually, different SRS resources correspond to different antenna ports.

In combination with the above solution, the method further includes: the terminal reporting the capabilities of the terminal to the network device, and the terminal capabilities include one or more of the following: whether to support uplink reference signal resources as reference signals in the TCI state, uplink The number of ports of the reference signal resource, the channel or signal type to which the TCI state is applicable, and the purpose of the uplink reference signal resource.

In combination with the above scheme, if the TCI state includes an index of the mapping relationship between the antenna port and the antenna panel, the network device and the terminal can pre-store the mapping relationship list of each antenna port and each antenna panel of the terminal; or the terminal receives the network The list of mapping relationships between each antenna port of the terminal and each antenna panel issued by the device; or the terminal reports the list of mapping relationships between each antenna port of the terminal and each antenna panel to the network device.

In combination with the above solutions, the number of ports of the uplink reference signal resource is the same as the number of antenna ports of the terminal, or the number of ports of the uplink reference signal resource is smaller than the number of antenna ports of the terminal. For example, the uplink reference signal resources are 2-port SRS resources, and the terminal includes 2 antenna ports or 4 antenna ports.

In combination with the above solution, the TCI state is issued through DCI, and the DCI is used to schedule data channels, such as: physical downlink shared channel (PDSCH) or physical uplink shared channel (physical uplink shared channel, PUSCH).

In combination with the above solution, the method further includes: the terminal sends an uplink reference signal to the base station through multiple antenna panels, wherein when each antenna panel sends an uplink reference signal in a beam scanning manner, multiple antenna ports of the terminal are connected to the same base station. an antenna panel. For example, multiple ports of the terminal are simultaneously connected to the first antenna panel to send multiple uplink reference signals, and multiple ports of the terminal are simultaneously connected to the second antenna panel to send multiple uplink reference signals; way to send multiple uplink reference signals.

The apparatus related to the above-mentioned reference signal resource configuration method is introduced below.

On the one hand, based on the above resource configuration method, a communication device is provided, and the device may be a terminal, or a chip or a functional unit in the terminal. The device has the functions of implementing the above resource configuration method and the functions of the terminal in various possible implementation manners. This function can be implemented by hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a possible design, the device includes: a transceiver module (or called a communication module), the transceiver module may include a receiving module and a sending module, which are respectively used to perform the operations of sending and receiving in the above resource configuration method; for example:

The transceiver module is used to receive the TCI state issued by the network device, and the TCI state includes uplink reference signal resources. If the uplink reference signal resources are multi-port reference signal resources, the TCI state is also used for an antenna panel indicating the connection of multiple antenna ports of the terminal; also used for using the antenna panel connected by the multiple antenna ports to transmit an uplink signal or channel through the transmission beam of the uplink reference signal resource, or to transmit an uplink signal or channel through the The receiving beam corresponding to the transmitting beam of the uplink reference signal resource receives the downlink signal or channel.

The specific above-mentioned sending and receiving operations are performed by the sending module and the receiving module respectively.

The apparatus may also include a processing module for performing operations other than sending and receiving. The transceiver module may be a transceiver, including at least one of a receiver and a transmitter.

For other operations performed by each module or unit of the foregoing apparatus, reference may be made to the description of the corresponding method.

The transceiver module may include a radio frequency circuit or an antenna, and the processing module may be a processor. Optionally, the apparatus further includes a storage module, which may be, for example, a memory. When included, the memory module is used to store the instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or other instructions, so that the apparatus executes the above-mentioned resource configuration method and various possible implementation manners. In this design, the device may be a terminal.

In another possible design, when the device is a chip, the chip includes: a transceiver module, and the transceiver module may include a receiving module and a sending module. The apparatus also includes a processing module. The transceiver module may be, for example, an input/output interface, a pin or a circuit on the chip. The processing module may be, for example, a processor. The processing module can execute the instructions, so that the chip in the terminal executes the above-mentioned resource configuration method and the above-mentioned various possible implementation manners. Optionally, the processing module may execute instructions in a storage module, and the storage module may be an in-chip storage module, such as a register, a cache, and the like. The memory module can also be located in the communication device, but located outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM), etc.

Wherein, the processor mentioned in any one of the above may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more of the above An integrated circuit for program execution of various aspects of the communication method.

On the other hand, based on the above resource configuration method, a communication apparatus is provided, and the apparatus may be a network device or a chip or a functional unit in the network device. The apparatus has the functions of implementing the above resource configuration and network equipment in various possible implementation manners. This function can be implemented by hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

In a possible design, the apparatus includes: a transceiver module (or referred to as a communication module), the transceiver module may include a receiving module and a sending module, which respectively perform the operations of sending and receiving in the above method. The apparatus also includes a processing module for performing operations other than sending and receiving. The transceiver module may be a transceiver, including at least one of a receiver and a transmitter, and the transceiver module may also include a radio frequency circuit or an antenna. The processing module may be a processor.

For example, the sending module is used to send the issued TCI state to the terminal, and the TCI state includes uplink reference signal resources. If the uplink reference signal resources are multi-port reference signal resources, the TCI state is also used to indicate an antenna panel to which multiple antenna ports of the terminal are connected;

Further, the receiving module is configured to receive the antenna panel connected by the terminal using the multiple antenna ports, and the uplink signal or channel sent through the transmission beam of the uplink reference signal resource.

Optionally, the apparatus further includes a storage module, which may be, for example, a memory. When included, the memory module is used to store the instructions. The processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or other instructions, so that the apparatus executes the above-mentioned resource configuration method, or any implementation manner thereof.

In another possible design, when the device is a chip, the chip includes: a transceiver module, and the transceiver module may include a receiving module and a sending module. The apparatus also includes a processing module. The transceiver module may be, for example, an input/output interface, a pin or a circuit on the chip. The processing module may be, for example, a processor. The processing module can execute instructions, so that the chip in the network device executes the above resource configuration method and any possible implementation manners.

When the device is a chip, the corresponding input is received and the corresponding output is sent.

Optionally, the processing module may execute instructions in a storage module, and the storage module may be an in-chip storage module, such as a register, a cache, and the like. The storage module may also be located in the communication device but outside the chip, such as ROM or other types of static storage devices that can store static information and instructions, RAM, and the like.

Wherein, the processor mentioned in any one of the above may be a CPU, a microprocessor, an application-specific integrated circuit ASIC, or one or more integrated circuits for controlling the execution of programs of the communication methods in the above aspects.

In another aspect, a computer storage medium is provided, and program codes are stored in the computer storage medium, and the program codes are used for instructing the method for performing the above-mentioned various aspects, and any possible implementation manners thereof.

In another aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the various aspects described above, or any possible implementation thereof.

In another aspect, a communication system is provided, and the communication system includes the above-mentioned terminal and the above-mentioned network device.

In another aspect, a communication device is provided, including a processor, a memory and a transceiver; the transceiver is used for receiving signals or transmitting signals; the memory is used for storing program codes; the processor is used for The program code is invoked from the memory to perform the methods of the various aspects described above, and any possible implementations thereof.

In another aspect, a communication apparatus is provided, comprising: a processor, when the processor executes a computer program in a memory, the methods of the above aspects, or any possible implementations thereof, are performed.

In another aspect, a communication device is provided, comprising: a memory and a processor; the memory is used for storing a computer program, and when the processor executes the computer program in the memory, the communication device executes the above aspects method, or any of its possible implementations.

In another aspect, a chip is provided, which is characterized by a processor and a communication interface, wherein the processor is configured to execute a computer program or instruction in a memory through the communication interface, execute the method of each of the above-mentioned aspects, or any possibility thereof. way of implementation.

Based on the above technical solution, if the uplink reference signal resource in the TCI state issued by the network device is a multi-port reference signal resource, the TCI state is also used to indicate the antenna panel to which multiple antenna ports of the terminal are connected, It is convenient for the terminal device to determine the appropriate antenna panel and beam according to the TCI state issued by the network device.

Description of drawings

Fig. 1 is the schematic diagram of a communication system of the present application;

Fig. 2 is the schematic diagram of the MAC CE including PDCCH CORESET TCI State;

3 is a schematic diagram of a fixed binding relationship between a radio frequency channel (RF) of a terminal and an antenna panel;

4 is a schematic diagram of a radio frequency channel (RF) of a terminal and an antenna panel without a fixed binding relationship;

5 is a schematic diagram of a radio frequency channel (RF) of a terminal and an antenna panel without a fixed binding relationship;

6 is a flowchart of a method for configuring reference signal resources according to an embodiment of the present application;

7 is a schematic diagram of a terminal sending SRS resources of a multi-antenna panel according to an embodiment of the present application;

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

FIG. 9 is a schematic structural diagram of a communication device according to another embodiment of the present application;

FIG. 10 is a schematic block diagram of a communication device according to another embodiment of the present application;

11 is a schematic structural diagram of a communication device according to another embodiment of the present application;

12 is a schematic diagram of a communication device device according to another specific embodiment of the present application;

13 is a schematic diagram of a communication device according to another specific embodiment of the present application;

14 is a schematic diagram of a communication device according to another specific embodiment of the present application;

FIG. 15 is a schematic diagram of a communication device according to another specific embodiment of the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex) , TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) system or new radio (new radio) , NR), the next sixth generation system (6th generation, 6G) or other future communication systems, etc.

A terminal in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent or user device. The terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminals in future 5G networks or terminals in future evolved public land mobile networks (PLMN), etc. , which is not limited in the embodiments of the present application.

The network device in this embodiment of the present application may be a device for communicating with a terminal, and the network device may be an evolved base station (evoled NodeB, eNB or eNodeB) in an LTE (Long Term Evolution, Long Term Evolution) system, or may be A wireless controller in a 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 or a network device in a future evolved PLMN network, one or a group of base stations in the 5G system (including multiple Antenna Panel) Antenna Panel. Alternatively, the network device may also be a network node constituting a gNodeB or a transmission point, such as a baseband unit (baseband unit, BBU) or a distributed unit (distributed unit, DU), etc., which are not limited in the embodiments of the present application.

In some deployments, a gNodeB may include a centralized unit (CU) and a DU. The gNodeB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNodeB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer or be transformed from the information of the PHY layer, under this architecture, high-level signaling such as RRC layer signaling can also be considered to be sent by the DU, or by the DU. +AAU sent. The network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be divided into network devices in a radio access network (RAN), and the CU may also be divided into network devices in a core network (core network, CN), which is not limited in this application.

In this embodiment of the present application, the terminal or network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU), and memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer includes applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application. method to communicate. For example, the execution body of the method provided by the embodiments of the present application may be a terminal or a network device, or a functional module in the terminal or network device that can call a program and execute the program.

Additionally, various aspects or features of the present application may be implemented by a method, apparatus or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program, or computer-readable medium, accessible from any computer-readable device, carrier, or medium. For example, computer readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), memory cards, memory sticks or key drives, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "computer-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions, and/or data.

FIG. 1 is a schematic diagram of a communication system of the present application. The communication system in FIG. 1 may include at least one terminal (eg, terminal 10 , terminal 20 , terminal 30 , terminal 40 , terminal 50 , and terminal 60 ) and a network device 70 . The network device 70 is used for providing communication services for the terminal and accessing the core network. The terminal can access the network by searching for synchronization signals and broadcast signals sent by the network device 70, so as to communicate with the network. The terminal 10 , the terminal 20 , the terminal 30 , the terminal 40 and the terminal 60 in FIG. 1 can perform uplink and downlink transmission with the network device 70 . For example, network device 70 can send downlink signals to terminal 10 , terminal 20 , terminal 30 , terminal 40 and terminal 60 , and can also receive uplink signals sent by terminal 10 , terminal 20 , terminal 30 , terminal 40 and terminal 60 .

In addition, terminal 40 , terminal 50 and terminal 60 can also be regarded as a communication system, and terminal 60 can send downlink signals to terminal 40 and terminal 50 , and can also receive uplink signals sent by terminal 40 and terminal 50 .

It should be noted that the embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in this application.

It should be understood that there may be one or more network devices included in the communication system. A network device can send data or control signaling to one or more terminals. Multiple network devices can also send data or control signaling to one or more terminals at the same time.

The following will introduce the terms involved in this application in detail:

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 the signal can be called the transmission beam (transmission beam, Tx beam), which can be called the spatial domain transmission filter or the spatial transmission parameter; the beam used to receive the signal can be called For the reception beam (reception beam, Rx beam), it can 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 the signal is transmitted by 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.

Furthermore, the beams may be wide beams, or narrow beams, or other types of beams. The beamforming technique may be beamforming or other techniques. 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, the network device sends different resources through different beams, and the terminal feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. During data transmission, beam information is also indicated by its corresponding resources. For example, the network device instructs the terminal to receive the PDSCH (physical downlink shared channel, physical downlink shared channel) beam information through the TCI (Transmission Configuration Indication) field in the DCI (downlink control information, downlink control information) field.

Optionally, multiple beams with the same or similar communication characteristics are regarded as one beam. A beam can be sent through one or more antenna ports for the transmission of data channels, control channels, sounding signals, etc. One or more antenna ports forming a beam can also be viewed as a set of antenna ports.

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

2. Resources:

In the beam measurement, the beam corresponding to the resource can be uniquely identified by the index of the resource. The resources may be uplink signal resources or downlink signal resources. Uplink signals include but are not limited to sounding reference signals (sounding reference signals, SRS) and demodulation reference signals (demodulation reference signals, 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 system/physical broadcast channel block, SS/PBCH block). Among them, the SS/PBCH block may be referred to as a synchronization signal block (synchronization signal block, SSB).

The resources are configured through radio resource control (radio resource control, RRC) signaling. In terms of configuration structure, a resource is a data structure, including relevant parameters of its corresponding uplink/downlink signals, such as the type of uplink/downlink signals, resource elements that carry uplink/downlink signals, and the transmission time and period of uplink/downlink signals. , the number of ports used to send uplink/downlink signals, etc. Each uplink/downlink signal resource has a unique index to identify the downlink signal resource. It can be understood that the index of the resource may also be referred to as the identifier of the resource, which is not limited in this embodiment of the present application.

The association relationship in this embodiment of the present application may also be specified by a standard, or pre-agreed by the network device and the terminal, or indicated to the terminal by the network device.

A synchronization signal block may also be called a synchronization signal/physical broadcast channel block (SS/PBCH block) block, or abbreviated as a synchronization signal block SSB, which may include a PBCH, a primary synchronization signal (primary synchronization signal, PSS), at least one of the secondary synchronization signal (Secondary synchronization signal, SSS).

3. TCI state:

As an example, the TCI state mainly includes the type of QCL (quasi-co-location, quasi-co-location) (for example, two different QCL types can be configured) and the reference signal of each QCL type, and the reference signal specifically includes the location of the reference signal. The carrier component (CC) identification (ID) or BWP ID of , and the number (ssb-index, or CSI-RS resource index) of each reference signal resource. The configuration method of the TCI state in the existing protocol is as follows:

Among them, the division of QCL types can be as follows:

QCL typeA: delay, Doppler shift, delay spread, Doppler spread;

QCL typeB: Doppler shift, Doppler extension;

QCL typeC: delay, Doppler shift;

QCL typeD: Spatial receiving parameters, that is, receiving beams.

4. Quasi-co-location (QCL):

The co-location relationship is used to indicate that multiple resources have one or more identical or similar communication features, and the same or similar communication configuration may be adopted for the multiple resources with the co-location relationship. For example, if two antenna ports have a co-location relationship, then the large-scale characteristics of the channel transmitting one symbol at one port can be inferred from the large-scale characteristics of the channel transmitting one symbol at the other port. Large scale properties can include: delay spread, average delay, Doppler spread, Doppler shift, average gain, receive parameters, terminal receive beam number, transmit/receive channel correlation, receive angle of arrival, receiver antenna space Correlation, main angle of arrival (Angel-of-Arrival, AoA), average angle of arrival, extension of AoA, etc. The parameters of the quasi-co-location include: at least one of Doppler spread, Doppler frequency shift, average delay, delay spread and spatial reception parameters. The QCL relationship can be divided into four categories: 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread}; 'QCL-TypeB': {Doppler shift, multiple pler extension};'QCL-TypeC':{Doppler shift,average delay};-'QCL-TypeD':{spatial reception parameters}.

5. Downlink beam training and uplink beam training

Downlink beam training is mainly implemented through the measurement and feedback of downlink signals (SSB and/or CSI-RS). It can be considered that the base station uses different transmit beams to transmit SSBs and/or CSI-RSs with different numbers (the numbers of transmit beams and SSB/CSI-RS are not necessarily in a one-to-one correspondence, but can also be one-to-many, many-to-one or Many-to-many relationship), the base station configures the terminal to perform L1-RSRP (reference signal receiving power, reference signal receiving power) measurement or L1-SINR (signal to interference plus noise ratio) for a specific one or more SSBs or CSI-RSs, Signal-to-interference-noise ratio) measurement, and the terminal is required to select N suitable SSBs or CSI-RSs to report their corresponding numbered identifiers and quality (RSRP/SINR). If the downlink signal is periodic or semi-persistent, the terminal has multiple opportunities during measurement and can try different receive beams. If the downlink signal is aperiodic (one-time), the terminal can measure according to the receiving beam indicated by the base station, or can select the receiving beam by itself.

Uplink beam training is mainly implemented by configuring the terminal to send an uplink measurement signal (eg, SRS) by the base station. It can be considered that the terminal uses different transmit beams to transmit SRSs with different numbers (similarly, there can be a many-to-many relationship between transmit beams and SRS numbers), and the base station selects a suitable transmit beam for the terminal by measuring the quality of different SRSs. When the base station is measuring, it can try different receiving beams. If the uplink signal is periodic or semi-persistent, the base station has multiple opportunities during measurement and can try different receive beams. If the line signal is aperiodic (one-time), the base station can also select the receiving beam by itself.

6. Downlink control channel beam

The PDCCH (physical downlink control channel, physical downlink control channel) is an example of the downlink physical control channel. The network uses the RRC signaling + MAC-CE (Media Access Control control element, MAC control element) signaling two-level signaling structure to perform PDCCH signaling. Beam indication. It should be noted that the beam indication of the PDCCH of R15 is realized by performing beam indication on CORESET (control resource set, control resource set). The network uses RRC signaling to configure the TCI state of the CORESET of BWP (bandwidth part) in a CC (Carrier component) for the terminal, and the network uses the MAC CE as the CORESET of the BWP of a CC of the terminal to indicate a TCI state. transmission to the target CORESET. The number of CORESET is unique within a CC.

Figure 2 shows the structure of the MAC CE containing the PDCCH CORESET TCI State in R15. It can be seen that the signaling carries multiple fields, including the CC ID field (serving cell ID) and the CORESET ID field.

The configuration information in this application can be configured by a network device and delivered to the terminal. The configuration information can be carried in the physical broadcast channel (PBCH), remaining minimum system information (RMSI), system information block (system information block, SIB) 1, SIB2, SIB3, media access control-control element (MAC-CE), downlink control information (DCI), radio resource control (radio resource) control, RRC) and any one of the system information.

It should be noted that, with the continuous development of technology, the terms in the embodiments of the present application may change, but all are within the protection scope of the present application.

The sending of the SRS resource in this application can also be understood as sending the SRS on the configured SRS resource, and the sending of the SRS resource and the sending of the SRS can be replaced with each other.

The base station can instruct the terminal device (terminal for short) how to receive downlink physical channels or physical signals through the TCI state. For example, the base station instructs the terminal that the TCI state applicable to the PDCCH is the TCI state with TCI state ID=1, and the QCL type in TCI state#1 When the reference signals of D and QCL type A are both CSI-RS resource #1, the terminal shall convert the receive beam, average delay, Doppler shift, delay spread and Doppler spread of the received CSI-RS resource #1 As a reference for the receive beam, average delay, Doppler shift, delay spread and Doppler spread of the PDCCH. That is, the terminal may receive the PDCCH using one or more parameters such as receive beam, average delay, Doppler offset, delay spread, Doppler spread, etc. for receiving CSI-RS resource #1.

Currently, the only reference signals in the TCI state are SSB and CSI-RS, which are both downlink reference signals. The uplink reference signal, such as the sounding reference signal SRS, cannot be used as the reference signal (referenceSignal) in the downlink TCI state. This is not reasonable in a TDD system. In the TDD system, the terminal performs signal transmission and signal reception in a time-sharing manner, so it is a reasonable approach to use the beam used for signal transmission to receive. If the receiving beam is determined according to the measurement and feedback of the downlink signal, in a scenario with many beams, the overhead of the signal and the overhead of the feedback information are large.

A simple solution is to allow uplink reference signals (for example: SRS) as the indication of downlink beams, for example: to allow SRS resources/or sets of SRS resources to be used as reference signals in the TCI state.

In one embodiment, the base station configures one or more SRS resource sets for beam scanning (Beam Management, BM). Each SRS resource set includes multiple SRS resources, and each SRS resource has an independent identifier (ID). The terminal transmits these SRS resources using different transmit beams. Optionally, the terminal transmits these SRS resource sets using different transmit antenna panels. The base station selects a suitable beam for the terminal by measuring the received signal strength of different SRS resources. Moreover, the base station configures the selected SRS resource as a reference signal in the TCI state and indicates the TCI state to the terminal as a reference for subsequent downlink reception of the terminal, and the terminal can determine the beam used for subsequent downlink reception according to the SRS resource identifier.

The above method actually assumes that the terminal radio frequency channel (RF) and the antenna panel have a fixed binding relationship. For example, RF1-4 in FIG. 3 represent four radio frequency channels possessed by the terminal, and one antenna port corresponds to one radio frequency channel. Each box represents an antenna panel. Each diagonal line represents a polarized antenna. In the above figure, RF1 and RF2 are bound to one antenna panel, and RF3 and RF4 are bound to another antenna panel.

However, in practical applications, the number of radio frequency channels of the terminal may be less than the number of antenna panels. In this case, there is no fixed mapping relationship between the radio frequency channel of the terminal and the antenna panel, that is, the radio frequency channel and the antenna panel will not be bound. When sending SRS resources, the terminal may implement a dynamic radio frequency channel to the antenna panel through a switch network. For example, as shown in Figures 4 and 5, on the left side of Figure 4, port1 is connected to panel 1, and on the right side of Figure 4, port1 is connected to panel 2; on the left side of Figure 5, port1 and port2 are connected to panel 1, and the right side of Figure 5 , port1 is connected to panel 1, and port2 is connected to panel 2; since there is no fixed mapping relationship between the RF channel and the antenna panel, that is, the terminal antenna port and the antenna panel have no fixed binding relationship and can be dynamically adjusted; therefore, the antenna used for sending SRS resources Panels and RF channels may vary. Simply indicating the identifier of the SRS resource for the terminal, the terminal may not be able to determine which antenna panel and beam to use for subsequent signal transmission.

In this application, one antenna port corresponds to one radio frequency channel or antenna port, where the antenna port and the radio frequency channel may be interchanged with each other herein.

An embodiment of the present application provides a method for configuring reference signal resources, which facilitates a terminal device (hereinafter referred to as a terminal) to determine an appropriate beam and antenna panel according to the TCI state delivered by a network device (for example, a base station).

Taking the reference signal in the TCI state as an SRS as an example, with reference to FIG. 6 , the method includes:

100: The terminal capability is reported.

The terminal can feed back to the base station whether it can support multi-port SRS resources as the capability of the reference signal in the TCI state.

The content of terminal capabilities may include one or more of the following:

Whether to support SRS resources as the reference signal in TCI state;

The number of ports for the SRS; for example: {1,2,4}. If the terminal supports SRS resources as the reference signal in the TCI state, the number of SRS ports is the maximum number of ports supported by the terminal that can be used as the reference signal in the TCI state.

SRS function (usage); for example: {beam management (BM, beam management), codebook-based transmission (codebook-based, CB), non-codebook-based transmission (non-codebook-based, NCB)}. If the terminal supports the SRS resource as the reference signal in the TCI state, the function of the SRS is the function supported by the terminal that can be used as the SRS resource of the reference signal in the TCI state.

The channel or signal type to which the TCI state is applicable; that is, the TCI state of which channels or signals are supported by SRS resources, which may include one or more of the following: {PDCCH, PDSCH, CSI-RS}.

In an example, the terminal capabilities include: supporting SRS resources as the reference signal in the TCI state, the number of SRS ports is 2, the function of the SRS is BM, and supporting SRS resources as the TCI state of the PDCCH.

The base station can learn the capabilities of the terminal according to the capability information reported by the terminal; or, if the terminal does not report the capability information, the base station defaults that the terminal has the above capabilities.

101: The base station sends the TCI state to the terminal.

The base station can send configuration information through RRC, including the TCI state, and the referenceSignal field of the TCI state includes the SRS resource identifier (SRS-ResourceId), that is, the type of the reference signal in the TCI state is SRS, and the SRS resource identifier can be 1 or more; and according to the number of ports of the SRS resource, the following provisions are made:

When the SRS resource is a single-port resource, that is, the SRS resource is transmitted through one port, the terminal uses the same antenna panel and transmit beam as the SRS resource to transmit the uplink signal or channel, and/or uses the same SRS resource to transmit The antenna panel corresponding to the transmit beam and the receive beam corresponding to the transmit beam are used to receive downlink signals or channels.

When the SRS resource is a multi-port (for example, 2 or more ports) resource, that is, the SRS resource can be sent through multiple antenna ports; the TCI state configured by the base station should also include the antenna port-antenna panel mapping relationship (port- panel-mapping) index, used to indicate the antenna panel to which multiple antenna ports of the terminal are connected. At this time, the terminal device selects the corresponding antenna panel according to the mapping relationship index, and uses the beam corresponding to the SRS resource to receive downlink signals or channels, and/or transmit uplink signals or channels.

The function of the SRS resource may be BM or other functions, the downlink channel is PDCCH or PDSCH, and the uplink channel is PUSCH or PUCCH.

The terminal can include multiple antenna ports and multiple antenna panels, but there is no fixed binding relationship between the antenna ports and the antenna panels, that is, the terminal supports dynamic mapping, and the antenna ports can be connected to different antenna panels. Therefore, when the SRS resource is a multi-port resource, the terminal needs to know the antenna panels to which each of the multiple antenna ports is connected. In this embodiment, an antenna port-antenna panel mapping relationship index is added to the TCI state configured by the base station, which is used to indicate the antenna panels connected to multiple antenna ports of the terminal. Which antenna panel to connect to.

For example, the referenceSignal configuration information in a TCI state may be as follows, where the underlined part is the new content of this embodiment. The base station can configure multiple different TCI states for the terminal, and each TCI state can contain different SRS resource identifiers. The underlined part is the new content in the TCI state:

Among them: SRS-ResourceId is the SRS resource identifier, which can be one or more; mapping-index is the index of the antenna port and antenna panel mapping relationship (port-panel-mapping), which is used to indicate which antenna the multiple antenna ports of the terminal are connected to respectively. Panel; Cond nrofSRS-Ports refers to determining whether the field exists according to the nrofSRS-Ports parameter, Cond is the abbreviation of Conditioned on..., that is, it is determined whether the antenna port-antenna panel mapping relationship index should be included according to the number of SRS ports. If the number of SRS ports is 1, the antenna port-antenna panel mapping relationship index (mapping-index) does not need to be included, and if the number of SRS ports is 2 or more, the mapping-index needs to be included.

In the above specific signaling, the value of the so-called antenna port-antenna panel mapping relationship (port-panel-mapping) indication field may be a mapping relationship index (mapping-index), and each mapping-index corresponds to a mapping relationship, Used to indicate which antenna panel the multiple antenna ports of the terminal are connected to.

Assume that the terminal has two antenna ports and four antenna panels. The 2 antenna ports can be connected to one of the 4 antenna panels respectively, and there are a total of 16 possible mapping relationships. So the mapping-index needs to be able to identify at least 16 different state mappings.

The mapping relationship of the above 16 different states can be represented by the following table:

Mapping indexMapping index	Port1连接的panelPanel connected to Port1	Port2连接的panelPort2 connected panel
00	11	11
11	11	22
22	11	33
33	11	44
44	22	11
55	22	22
66	22	33
77	22	44
88	33	11
99	33	22
1010	33	33
1111	33	44
1212	44	11
1313	44	22
1414	44	33
1515	44	44

The above table or the mapping relationship represented by the above table needs to form a consensus on both sides of the base station and the terminal, which can be pre-defined by the protocol, or pre-stored by both parties, or pre-configured or stored by the base station and notified to the terminal by signaling, It may also be pre-configured or stored by the terminal and reported to the base station.

For example, if the Mapping index in the report is 0, it means that port1 and port2 of the terminal are both connected to panel1; if the Mapping index is 2, it means that port1 of the terminal is connected to panel1, and port2 is connected to panel2; if the Mapping index is 3, it means that port1 of the terminal is connected to panel1, and port2 is connected to panel3; By analogy; the value of each Mapping index represents a mapping relationship, and there are 16 types in total.

The base station may notify the terminal of the above mapping relationship table through RRC, MAC-CE, DCI, etc.

It should be noted that the above table is an exemplary illustration. For example, in another mapping relationship, mapping index0 corresponds to port1 connecting to panel4, and port2 connecting to panel4, that is, the mapping relationship of index 0 corresponding to index 15, and other mapping indexes can also be changed accordingly.

According to the mapping relationship in the above table, if the TCI state configured by the base station is as follows:

The referenceSignal is the two-port SRS resource 1 and SRS resource 5, then when the terminal needs to determine the receiving or sending beam and antenna panel according to this TCI state, the beam direction refers to the sending beam used for sending SRS resource 1 and SRS resource 5 ; And the port-panel-mapping field is mapping index=1, by looking up the table, it can be seen that the antenna port 1 (port1) is connected to the antenna panel 1, and the antenna port 2 (port2) is connected to the antenna panel 2; then it can be determined that the antenna port 1 (port1) ) is connected to the antenna panel 1 to form the transmit beam direction of the SRS resource 1, and the antenna port 2 (port2) is connected to the antenna panel 2 to form the transmit beam direction of the SRS resource 5.

When the terminal receives the above TCI state, it can use the antenna panel 1 to send the uplink channel or signal in the direction of the transmit beam of the SRS resource 1, or it can use the antenna panel 1 to receive the downlink channel or signal in the direction of the receive beam corresponding to the transmit beam of the SRS resource 1. Similarly, use the antenna panel 2 to transmit the uplink channel or signal in the direction of the transmit beam of the SRS resource 5, or use the antenna panel 2 to receive the downlink channel or signal in the direction of the receive beam corresponding to the transmit beam of the SRS resource 5.

In the above table, a mapping index is used to represent a combination of the mapping relationship between multiple antenna ports and antenna panels, which can be called the notification method of the number of combinations.

The notification method of the mapping relationship between the antenna port and the antenna panel in the TCI state, in addition to the above can be notified through a mapping index number (mapping index), it can also be notified through multiple resources + port numbers.

If the TCI state only includes the identifier of one multi-port SRS resource, for example, SRS resource 1 is a 2-port resource, if the base station needs to notify the terminal to use the same beam as that for sending SRS resource 1 and the connection method from the antenna port to the antenna panel to To send or receive subsequent signals, the base station only needs to notify the resource number or resource identifier of the SRS resource 1.

If the TCI state includes the identifiers of multiple multi-port SRS resources, for example: if the base station needs to notify the terminal to use the same beam as SRS resource 1 and SRS resource 5, and use the antenna panel connected to antenna port 1 that sends SRS resource 1 The base station needs to notify the terminal of two SRS resource numbers (1, 5) and the port numbers corresponding to the two SRS resources to transmit or receive subsequent signals with the antenna panel connected to the antenna port 2 that transmits the SRS resource 5. For example, SRS resource 1 corresponds to antenna port 1 (port1), and SRS resource 5 corresponds to antenna port 2 (port2), that is, SRS resource 1 is sent through port1, and SRS resource 5 is sent through port2; if the terminal sends SRS resource 1, the antenna of the terminal Port 1 is connected to antenna panel 1, and when the terminal sends SRS resource 5, antenna port 2 is connected to antenna panel 2, then the terminal uses antenna panel 1 connected to antenna port 1 (port1) and uses the transmit beam of SRS resource 1, and uses antenna port 2 (port2) The connected antenna panel 2 uses the transmission beam of the SRS resource 5 to transmit subsequent signals.

For example: TCI state format is:

The port-panel-mapping here is two port numbers (1, 2), which correspond to two SRS resources (1, 5).

The above content indicates that SRS resource 1 corresponds to antenna port 1 (port1), and SRS resource 5 corresponds to antenna port 2 (port2). The antenna panel transmits subsequent signals. If SRS resource 1 is sent, antenna port 1 of the terminal is connected to antenna panel 1, and when SRS resource 5 is sent, antenna port 2 is connected to antenna panel 2; then the terminal uses antenna panel 1 and transmits subsequent uplink signals through the transmission beam of SRS resource 1 Or channel transmission, use antenna panel 2 and transmit subsequent uplink signals or channels through the transmission beam of SRS resource 5; use antenna panel 1 and use the receive beam corresponding to the transmission beam of SRS resource 1 to perform subsequent downlink signals or channels For reception, use the antenna panel 2 and use the receive beam corresponding to the transmit beam of the SRS resource 5 to receive subsequent downlink signals or channels.

Specifically, after receiving the above-mentioned TCI state, the terminal can send uplink signals or channels through the antenna panel 1 using the transmission beam of SRS resource 1, or use the antenna panel 1 to use the receiving beam corresponding to the transmission beam of SRS resource 1 to receive downlink signals or Channel; use the transmit beam of SRS resource 5 to transmit uplink signals or channels through the antenna panel 2, or receive downlink signals or channels by using the receive beam corresponding to the transmit beam of SRS resource 5 to the antenna panel 2.

In the above scheme, since the TCI state includes the SRS logo, and further indicates the antenna panel connected to each antenna port, the terminal can determine the appropriate antenna panel and beam according to the received TCI state to perform uplink signal (or channel) transmission. Transmission or reception of downstream signals (or channels).

102: Optionally, the terminal sends the SRS, and the base station measures the SRS sent by the terminal, and determines a suitable sending beam.

This step is optional, and it can be an independent embodiment, or it can be before 101, or it can be a parallel solution with 101.

If the terminal includes multiple antenna panels, and the SRS resources are multi-port resources; a transmission method is that when the terminal uses one antenna panel to transmit multiple SRS resources, multiple antenna ports are connected to the antenna panel at the same time. That is to say, if the SRS resources are two-port or multi-port, the terminal restricts them to be sent by one antenna panel at the same time when sending the SRS resources. As shown in Figure 5 below, when the terminal sends two-port SRS resources, the two antenna ports (port1, port2) are connected to the same antenna panel. In this way, all beams of each panel are traversed. Traversal refers to using different The transmit beam transmits different SRS resources. For example: as shown in Figure 7, port1 and port2 are connected to antenna panel 1, and SRS resources 1-4 are sent; port1 and port2 are connected to antenna panel 2, and SRS resources 5-8 are sent; port1 and port2 are connected to antenna panel 3, and SRS resources 9 are sent -12; port1 and port2 are connected to antenna panel 4 and send SRS resources 13-16.

On the base station side, the signal strengths of different SRSs can be measured and their combinations can be calculated. For example, based on the principle of maximum capacity, the channel formed by the beams corresponding to resource #1 and resource #5 can be selected to achieve the maximum signal capacity, and in the next step, this A combination of information is indicated to the terminal. For example, this combination information refers to a combination of transmit beams formed by port1 connecting panel1 to transmit SRS resource #1 and port2 connecting panel2 to transmit SRS resource #5 transmit beams. The base station looks up which mapping-index in the mapping relation table in 101 can represent this combination information, and the table looks up to know that mapping index=1.

Then, the base station needs to issue the TCI state to the terminal, and notify the terminal of the beam combination corresponding to the above measurement result. Similar to the indication in 101, the base station needs to indicate the TCI state ID for the terminal, for example, ID=1, which corresponds to the following TCI state: The referenceSignal is two-port SRS resource 1 and SRS resource 5, and the port-panel-mapping field is mapping index=1. For example, the TCI state content may include:

Then when the terminal needs to determine the receiving or transmitting beam and the antenna panel according to this TCI state, the beam direction refers to the transmitting beam used to transmit SRS resource 1 and SRS resource 5, and the corresponding antenna panel is connected to the antenna port 1 (port1). Antenna panel 2 connected to antenna panel 1 and antenna port 2 (port2).

In addition, similar to 101, it can also be notified by multiple SRS resource numbers + port numbers, in the following TCI state format:

The above content indicates that the beam direction refers to the transmit beam used to transmit SRS resource 1 and SRS resource 5, and the corresponding antenna panel is the antenna panel connected to the antenna port 1 (port1) that transmits SRS resource 1 and the antenna port 2 that transmits SRS resource 5. (port2) the connected antenna panel; if the terminal antenna port 1 is connected to the antenna panel 1 when sending SRS resource 1, and when sending SRS resource 5, the antenna port 2 is connected to the antenna panel 2; then the terminal uses the antenna panel 1 and passes the SRS resource 1. The transmission beam is used for subsequent signal transmission, and the antenna panel 2 is used for subsequent signal transmission through the transmission beam of the SRS resource 5 .

After receiving the above-mentioned TCI state, the terminal equipment can use the corresponding antenna panel and the transmission beam corresponding to the SRS resource to transmit the uplink signal; or use the corresponding antenna panel and the receiving beam corresponding to the transmission beam of the SRS resource to transmit the downlink signal. Receive; the specific operation mode is similar to that of 101, and will not be described in detail.

103: The base station schedules the PDSCH or PUSCH through the DCI, where the TCI field in the DCI is used to indicate the receiving antenna panel and the receiving beam of the terminal, or the transmitting antenna panel and the transmitting beam.

Following the example of step 102, the base station assigns a value of 1 to the TCI field in the DCI, and the terminal should receive PDSCH or transmit PUSCH according to the TCI state corresponding to TCI state ID1.

If DCI is used to schedule PDSCH, the receive beam of PDSCH is the receive beam corresponding to the transmit beam used to transmit SRS resource 1 and SRS resource 5, and antenna panel 1 and antenna panel 2 are used at the same time. For example: DCI is used to schedule PDSCH with 2 ports, antenna panel 1 corresponds to port 1, and antenna panel 2 corresponds to port 2.

If DCI is used to schedule PUSCH, the transmission beam of PUSCH is the transmission beam used to transmit SRS resource 1 and SRS resource 5, and antenna panel 1 and antenna panel 2 are used at the same time. For example: DCI is used to schedule 2-port PUSCH, and antenna port 1 (port1) is connected to antenna panel 1, and antenna port 2 (port2) is connected to antenna panel 2.

For example, TCI state content can include:

Similar to the situation described in 101, after the terminal receives the above TCI state, the terminal uses antenna panel 1 to transmit PUSCH through the transmission beam of SRS resource 1, and uses antenna panel 2 to transmit PUSCH through the transmission beam of SRS resource 5. ; Use antenna panel 1 and receive PDSCH through the receive beam corresponding to the transmit beam of SRS resource 1, use antenna panel 2 and receive PDSCH through the receive beam corresponding to the transmit beam of SRS resource 5.

TCI state content can also include:

After receiving the above-mentioned TCI state, the terminal can transmit PUSCH using the transmit beam of SRS resource 1 through antenna panel 1, or receive PDSCH by using the receive beam corresponding to the transmit beam of SRS resource 1 through antenna panel 1; use SRS resource through antenna panel 2 The transmit beam of 5 transmits the PUSCH, or the antenna panel 2 uses the receive beam corresponding to the transmit beam of the SRS resource 5 to receive the PDSCH.

This step is optional, and can also be an independent embodiment. For the meaning of the specific TCI state, refer to the description in 101 above, and will not be described in detail again.

Further, when the base station schedules the PUSCH through the DCI, if the terminal needs to use only a single antenna panel to send the PUSCH, the information of the antenna panel used by the terminal can also be indicated through the DCI mask. Therefore, when the same TCI state is used for uplink PUSCH transmission and for downlink PDSCH transmission, it indicates the information of different antenna panels and beams. In this way, the overhead of TCI state can be saved, and there is no need to configure different TCI states for uplink and downlink.

One indication method is shown in the following table:

The above <0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0> indicates the antenna panel used by port 1, <0,0,0,0 ,0,0,0,0,0,0,0,0,0,0,0,1> indicates the antenna panel used by port 2.

In the above-mentioned configuration method of reference signal resources, when the uplink reference signal resources in the TCI state issued by the network device are multi-port reference signal resources, the TCI state is also used to indicate the antennas connected to multiple antenna ports of the terminal. Panel, it is convenient for the terminal device to determine the appropriate antenna panel and beam according to the TCI state issued by the network device. If the above proposal is written as a standard proposal, it can be expressed in English as:

"In Rel-17, unified TCI is to be introduced as the beam indication for both DL and UL. Previously, in a legacy TCI state, only DL signal IDs like SSB index and CSI-RS resource ID can be configured as the QCL references .It is straightforward to add SRS resource ID in the expected unified TCI,to enable functionalities like DL beam follow UL beam,or to replace the legacy uplink beam indication–SpatialRelationInfo.However,considering that FR2 UE is usually equipped with multiple panels(say 4 panels) and multiple RF chains(say 2 RF chains), UE needs to dynamically connect its RF chains to the selected panels. During the UL BM phase, both RF chains can be connected to the same panel to generate UL Tx beam to transmit a 2-port SRS resource.During the DL/UL data transmission phase,to maximize the capacity,gNB could select two beam directions for a joint transmission.In this case,signaling SRS resource IDs in a unified TCI is not enough,since the mapping between RF chains and UE panels may be not the same as it was during UL BM phase.A port-panel mapping index can be included in the unified TCI to help UE determine which RF chain connects to which panel,when the SRS resource in TCI is a multi-port SRS resource.The possible mapping relationships between port and panel can be reported by the UE.

Proposal: support to include more than 1SRS resource IDs in the unified TCI and support to include port-panel mapping information in the unified TCI when the port number of SRS resource in unified TCI is larger than 1.”

Chinese are as follows:

"In the R17 standard, a unified TCI will be introduced as the beam indication for uplink and downlink. In the traditional TCI state, only the ID of the downlink signal, such as the SSB number or the CSI-RS resource ID, can be configured as a reference for the QCL relationship. Adding SRS resource ID in TCI is a kind of very direct expansion method, can be used to realize the function that downlink beam follows upgoing beam or can be used to replace traditional upgoing beam indication, namely spatial relation information.But, considering that high frequency terminal usually Equipped with multiple antenna panels (eg 4) and multiple RF channels (eg 2), the terminal needs to dynamically connect its RF channel to the selected antenna panel. During the uplink beam training phase, the two RF channels can be Connect to the same antenna panel to send a two-port SRS resource. In the uplink and downlink data transmission phase, in order to maximize the capacity, the base station can select two different beam directions for joint transmission. At this time, only the SRS resource is notified in the unified TCI The ID is not enough, because the connection method of the terminal's radio frequency channel and the antenna panel may be different from the uplink beam training phase. Therefore, when the SRS resource is a multi-port SRS resource, the unified TCI can also include the antenna port-antenna panel mapping To help the terminal determine which radio frequency link is connected to which antenna panel. All the antenna port-antenna panel mapping relationships that may be supported by the terminal can be reported by the terminal to the base station.

Proposal: It is supported to include more than one SRS resource ID in the unified TCI. If the port number of the SRS resource is greater than 1, it is also supported to include the antenna port-antenna panel mapping relationship in the unified TCI. "

It can be understood that, in the above method embodiments, the methods and operations implemented by the terminal may also be implemented by components (such as chips or circuits) that can be used in the terminal, and the methods and operations implemented by the network device may also be implemented by the terminal. A component (eg, chip or circuit) implementation of a network device.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspectives of various interactions. It can be understood that each network element, such as a transmitter device or a receiver device, includes corresponding hardware structures and/or software modules for performing each function in order to implement the above-mentioned functions. Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented in the form of hardware, or can be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by using the division of each function module corresponding to each function as an example.

It should be understood that the specific examples in the embodiments of the present application are only for helping those skilled in the art to better understand the embodiments of the present application, rather than limiting the scope of the embodiments of the present application.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

In the above, the methods provided by the embodiments of the present application are described in detail with reference to FIG. 3 to FIG. 7 . Hereinafter, the apparatus provided by the embodiments of the present application will be described in detail with reference to FIG. 8 to FIG. 13 . It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for the content not described in detail, reference may be made to the above method embodiment, which is not repeated here for brevity.

FIG. 8 shows a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application.

It should be understood that the apparatus 800 may correspond to the terminal in the embodiment shown in FIG. 6 or a chip in the terminal, and may have any function of the terminal in the method embodiment shown in FIG. 6 . The apparatus 800 includes a transceiver module 810, and the transceiver module 810 may specifically include a receiving module and a sending module. Further, the apparatus 800 may further include a processing module 820, where the processing module 820 is configured to perform other operations other than sending and receiving in the method embodiment.

The transceiver module 810 is configured to receive the TCI state issued by the network device, and the TCI state includes the identifier of the uplink reference signal resources. If the uplink reference signal resources are all multi-port reference signal resources, the TCI state also an antenna panel used to indicate the connection of multiple antenna ports of the terminal; using the antenna panel connected by the multiple antenna ports, the uplink signal or channel is transmitted through the transmission beam of the uplink reference signal resource, or the uplink reference The receive beam corresponding to the transmit beam of the signal resource receives the downlink signal or channel.

The above receiving action is performed by the receiving module, and the sending action is performed by the sending module.

For a more detailed description of the foregoing transceiver module 810 and the processing module 220, reference may be made to the relevant descriptions in the foregoing method embodiments, which are not described herein again.

FIG. 9 shows a communication apparatus 900 provided by an embodiment of the present application, and the apparatus 900 may be the terminal device described in FIG. 6 . The device may adopt the hardware architecture shown in FIG. 9 . The apparatus may include a processor 910 and a transceiver 930, and optionally, the apparatus may further include a memory 930, and the processor 910, the transceiver 920 and the memory 930 communicate with each other through an internal connection path. The related functions implemented by the processing module 820 in FIG. 8 may be implemented by the processor 910 , and the related functions implemented by the transceiver module 810 may be implemented by the processor 910 controlling the transceiver 920 .

Alternatively, the processor 910 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more An integrated circuit for implementing the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions). For example, it may be a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (eg, base stations, terminals, or chips, etc.), execute software programs, and process data of software programs.

Optionally, the processor 910 may include one or more processors, such as one or more central processing units (CPUs). In the case where the processor is a CPU, the CPU may be a single Core CPU, can also be a multi-core CPU.

The transceiver 920 is used to transmit and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 930 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (EPROM), read-only memory (EPROM), and erasable programmable memory (EPROM). A compact disc read-only memory (CD-ROM), the memory 940 is used to store related instructions and data.

The memory 930 is used to store program codes and data of the terminal, and can be a separate device or integrated in the processor 910 .

Specifically, the processor 910 is configured to control the transceiver and the terminal to perform information transmission. For details, refer to the description in the method embodiment, which is not repeated here.

In a specific implementation, as an embodiment, the apparatus 900 may further include an output device and an input device. The output device communicates with the processor 910 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector), etc. . The input device communicates with the processor 910 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device, or the like.

It will be appreciated that Figure 9 only shows a simplified design of the communication device. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals that can implement the present application are within the protection scope of the present application within.

In a possible design, the apparatus 900 may be a chip, for example, a communication chip that can be used in a terminal, for implementing the relevant functions of the processor 910 in the terminal. The chip can be a field programmable gate array, an application-specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes, and when the codes are executed, make the processor implement corresponding functions.

An embodiment of the present application further provides an apparatus, and the apparatus may be a terminal or a circuit. The apparatus may be configured to perform the actions performed by the terminal in the foregoing method embodiments.

FIG. 10 shows a schematic block diagram of a communication apparatus 1000 according to an embodiment of the present application.

It should be understood that the communication apparatus 1000 may correspond to the network device in the embodiment shown in FIG. 6 or a chip in the network device, and may have any function of the network device in the method. The apparatus 1000 includes a transceiver module 1010, and the transceiver module includes a receiving module and a sending module. Optionally, the apparatus 1000 may further include a determination module 1020, and the determination module may be used to perform other operations other than transmission and reception, such as SRS measurement and the like.

The sending module is configured to issue a TCI state, where the TCI state includes uplink reference signal resources, and if the uplink reference signal resources are all multi-port reference signal resources, the TCI state is also used to indicate the terminal Antenna panel to which multiple antenna ports are connected;

The receiving module is configured to receive an antenna panel connected by the terminal using the multiple antenna ports, and send an uplink signal or channel through the transmission beam of the uplink reference signal resource.

In one embodiment, the communication device includes:

For a more detailed description of the foregoing transceiver module 1010 and the processing module 1020, reference may be made to the relevant descriptions in the foregoing method embodiments, which are not described herein again.

FIG. 11 shows a communication apparatus 1100 provided by an embodiment of the present application, and the apparatus 1100 may be the network device described in FIG. 6 . The device may adopt the hardware architecture shown in FIG. 11 . The apparatus may include a processor 1110 and a transceiver 1120, and optionally, the apparatus may further include a memory 1130, and the processor 1110, the transceiver 1120 and the memory 1130 communicate with each other through an internal connection path. The related functions implemented by the processing module 1020 in FIG. 10 can be implemented by the processor 1110 , and the related functions implemented by the transceiver module 1010 can be implemented by the processor 1110 controlling the transceiver 1120 .

Alternatively, the processor 1110 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more An integrated circuit for implementing the technical solutions of the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions). For example, it may be a baseband processor, or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (eg, base stations, terminals, or chips, etc.), execute software programs, and process data of software programs.

Optionally, the processor 1110 may include one or more processors, such as one or more central processing units (CPUs). In the case where the processor is a CPU, the CPU may be a single Core CPU, can also be a multi-core CPU.

The transceiver 1120 is used to transmit and receive data and/or signals, and to receive data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 1130 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (EPROM), and read-only memory (EPROM). A compact disc read-only memory (CD-ROM), the memory 1130 is used to store related instructions and data.

The memory 1130 is used to store program codes and data of the network device, and may be a separate device or integrated in the processor 1110 .

Specifically, the processor 1110 is used to control the transceiver and the terminal to transmit information. For details, refer to the description in the method embodiment, which is not repeated here.

In a specific implementation, as an embodiment, the apparatus 1100 may further include an output device and an input device. The output device communicates with the processor 1110 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector), etc. . The input device communicates with the processor 1110 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, or a sensor device, or the like.

It will be appreciated that Figure 11 only shows a simplified design of the communication device. In practical applications, the device may also include other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement the present application are protected by the present application. within the range.

In a possible design, the apparatus 1100 may be a chip, such as a communication chip that can be used in a network device, for implementing the related functions of the processor 1110 in the network device. The chip can be a field programmable gate array, an application-specific integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips for realizing related functions. The chip may optionally include one or more memories for storing program codes, and when the codes are executed, make the processor implement corresponding functions.

An embodiment of the present application further provides an apparatus, and the apparatus may be a network device or a circuit. The apparatus may be configured to perform the actions performed by the network device in the foregoing method embodiments.

Optionally, when the apparatus in this embodiment is a terminal, FIG. 12 shows a schematic structural diagram of a simplified terminal. For the convenience of understanding and illustration, in FIG. 12 , the terminal takes a mobile phone as an example. As shown in FIG. 12 , the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control terminals, execute software programs, and process data of software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are 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 terminals 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 through the antenna in the form of electromagnetic waves. When data is sent to the terminal, 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, which converts the baseband signal into data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 12 . In an actual end 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 a storage device or the like. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

In the embodiments of the present application, an antenna with a transceiver function and a radio frequency circuit may be regarded as a transceiver unit of the terminal, and a processor with a processing function may be regarded as a processing unit of the terminal. As shown in FIG. 12 , the terminal includes a transceiver unit 1210 and a processing unit 1220 . The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like. The processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like. Optionally, the device for implementing the receiving function in the transceiver unit 1210 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 1210 may be regarded as a transmitting unit, that is, the transceiver unit 1210 includes a receiving unit and a transmitting unit. The transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

It should be understood that the transceiver unit 1210 is configured to perform the sending and receiving operations on the terminal side in the foregoing method embodiments, and the processing unit 1220 is configured to perform other operations on the terminal except for the sending and receiving operations in the foregoing method embodiments.

For example, in an implementation manner, the processing unit 1220 is configured to perform the processing operations of the terminal device in FIG. 6 . The transceiving unit 1210 is configured to perform the transceiving operation in FIG. 6 , and/or the transceiving unit 1210 is further configured to perform other transceiving operations of the terminal device in this embodiment of the present application.

When the device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, a microprocessor or an integrated circuit integrated on the chip. If it is a chip, the receive in the method corresponds to the input, and the send corresponds to the output.

Optionally, when the apparatus is a terminal, reference may also be made to the device shown in FIG. 13 . As an example, the device may perform functions similar to processor 910 in Figure 9 . In FIG. 13 , the device includes a processor 1301 , a transmit data processor 1303 , and a receive data processor 1305 . The processing module 820 in the above-mentioned embodiment shown in FIG. 8 may be the processor 1301 in FIG. 13 and perform corresponding functions. The transceiver module 810 in the above embodiment shown in FIG. 8 may be the transmitting data processor 1303 and the receiving data processor 1305 in FIG. 13 . Although the channel encoder and the channel decoder are shown in FIG. 13 , it can be understood that these modules do not constitute a limitative description of this embodiment, but are only illustrative.

Figure 14 shows another form of this embodiment. The processing device 1400 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment may serve as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1403 and an interface 1404 . The processor 1403 completes the functions of the above-mentioned processing module 820 , and the interface 1404 implements the functions of the above-mentioned transceiver module 810 . As another variant, the modulation subsystem includes a memory 1406, a processor 1403, and a program stored in the memory and executable on the processor, the processor implementing the method described in the embodiments when executing the program. It should be noted that the memory 1406 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1400, as long as the memory 1406 can be connected to the The processor 1403 is sufficient.

When the apparatus in this embodiment is a network device, the network device may be as shown in FIG. 15 . The network device can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments. For example, the network device 150 may also be the base station 150 . Base station 150 may include one or more DUs 1501 and one or more CUs 1502. The CU1502 can communicate with the next generation core network (NG core, NC). The DU 1501 may include at least one antenna 15011, at least one radio frequency unit 15012, at least one processor 15013 and at least one memory 15014. The DU 1501 part is mainly used for the transmission and reception of radio frequency signals, the conversion of radio frequency signals and baseband signals, and part of baseband processing. The CU 1502 may include at least one processor 15022 and at least one memory 15021 . CU1502 and DU1501 can communicate through interfaces, wherein the control plane interface can be Fs-C (such as F1-C), and the user plane interface can be Fs-U (such as F1-U) .

The CU 1502 part is mainly used to perform baseband processing, control the base station, and the like. The DU 1501 and the CU 1502 may be physically set together, or may be physically separated, that is, a distributed base station. The CU 1502 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete the baseband processing function. For example, the CU 1502 may be used to control the base station to perform the operation procedures related to the network device in the foregoing method embodiments.

Specifically, the baseband processing on the CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the packet data convergence layer protocol (PDCP) layer and above are set in the protocol layers below the CU and PDCP. For example, functions of a radio link control (radio link control, RLC) layer and a medium access control (medium access control, MAC) layer are set in the DU. For another example, CU implements functions of radio resource control (radio resource control, RRC) and packet data convergence protocol (PDCP) layer, DU implements radio link control (radio link control, RLC), MAC and physical (physical, PHY) layer function.

In addition, optionally, the base station 150 may include one or more radio frequency units (RUs), one or more DUs and one or more CUs. The DU may include at least one processor 15013 and at least one memory 15014 , the RU may include at least one antenna 15011 and at least one radio frequency unit 15015 , and the CU may include at least one processor 15022 and at least one memory 15021 .

For example, in one implementation, the processor 15013 is configured to execute the processing steps on the network device side in FIG. 6 . The radio frequency unit 15015 is used to perform the transceiving operation in FIG. 6 .

In an example, the CU1502 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access systems of different access standards. Access network (such as LTE network, 5G network or other network). The memory 15021 and the processor 15022 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board. The DU1501 can be composed of one or more single boards. Multiple single boards can jointly support a wireless access network (such as a 5G network) with a single access indication, or can support a wireless access network with different access standards (such as a 5G network). LTE network, 5G network or other network). The memory 15014 and processor 15013 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, 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, data center, etc. that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, high-density digital video discs (DVDs)), or semiconductor media (eg, solid state disks, SSD)) etc.

It should be understood that the processor may be an integrated circuit chip, which has signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction 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), an off-the-shelf programmable gate array (field programmable gate array, FPGA), or other possible solutions. Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the methods disclosed in conjunction with the embodiments of the present application may be embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. 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 this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), 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 link dynamic random access memory (synchronous link DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

In this application, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the relationship between the associated objects, indicates that there can be three kinds of relationships. For example, A and/or B, can indicate: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) of a, b, or c may represent: a, b or c; a and b, a and c or b and c; or a, b and c.

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present application. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet interacting with other systems via signals) Communicate through local and/or remote processes.

It should also be understood that the first, second, and various numerical numbers involved in this document are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

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

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

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for configuring reference signal resources, comprising:

The terminal receives the transmission configuration number state TCI state issued by the network device. The TCI state includes uplink reference signal resources. If the uplink reference signal resources are all multi-port reference signal resources, the TCI state is also used to indicate the Antenna panels corresponding to multiple antenna ports of the terminal;

The terminal uses the antenna panels corresponding to the multiple antenna ports to transmit uplink signals or channels through the transmission beams of the uplink reference signal resources, or receive downlink signals or channels through the reception beams corresponding to the transmission beams of the uplink reference signal resources. channel.
The method of claim 1, wherein:

The TCI state includes an index of the mapping relationship between the antenna port and the antenna panel; or

The TCI state includes multiple uplink reference signal resources, and each uplink reference signal resource corresponds to a port number.
The method according to claim 2, if the TCI state includes a mapping relationship index from an antenna port to an antenna panel, the method further comprises:

Pre-store a list of mapping relationships between each antenna port of the terminal and each antenna panel; or

receiving a list of mapping relationships between each antenna port of the terminal and each antenna panel issued by the network device; or

A list of mapping relationships between each antenna port of the terminal and each antenna panel is reported to the network device.
The method of claim 1, further comprising:

The terminal reports the capabilities of the terminal to the network device, and the capabilities of the terminal include one or more of the following:

Whether to support uplink reference signal resources as reference signals in TCI state:

The number of ports of uplink reference signal resources;

the channel or signal type to which the TCI state is applicable;

Use of the uplink reference signal resources.
The method according to claim 1, wherein: the TCI state is issued through downlink control information DCI, and the DCI is used to schedule a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH.
The method according to claim 1, further comprising: the terminal sends an uplink reference signal to the base station through multiple antenna panels, wherein when each antenna panel sends an uplink reference signal in a beam scanning manner, the multiple antenna ports of the terminal Corresponds to the same antenna panel.
A communication device, comprising a processor, a memory and a transceiver;

the transceiver, for receiving signals or transmitting signals;

the memory for storing program codes;

The processor for invoking the program code from the memory to perform the method of any one of claims 1 to 6.
A communication device, comprising: a processor, when the processor executes a computer program in a memory, the method according to any one of claims 1 to 6 is executed.
A communication device, characterized in that it comprises: a memory and a processor; the memory is used for storing a computer program, and when the processor executes the computer program in the memory, the communication device executes the steps according to claims 1 to 1. The method of any one of 6.
A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a computer program or instruction, which, when the computer program or instruction is executed on a computer, causes the computer to execute any one of claims 1 to 6 method described in item.
A terminal includes a transceiver module for:

Receive the transmission configuration number state TCI state issued by the network device, the TCI state includes uplink reference signal resources, if the uplink reference signal resources are multi-port reference signal resources, the TCI state is also used to indicate the Antenna panels corresponding to multiple antenna ports of the terminal;

Using the antenna panels corresponding to the multiple antenna ports, transmit uplink signals or channels through the transmit beams of the uplink reference signal resources, or receive downlink signals or channels through the receive beams corresponding to the transmit beams of the uplink reference signal resources.
The terminal of claim 11, wherein:

The TCI state includes an index of the mapping relationship between the antenna port and the antenna panel; or

The TCI state includes multiple uplink reference signal resources, and each uplink reference signal resource corresponds to a port number.
The terminal according to claim 12, if the TCI state includes a mapping relationship index from an antenna port to an antenna panel, the transceiver module is further configured to:

receiving a list of mapping relationships between each antenna port of the terminal and each antenna panel issued by the network device; or

A list of mapping relationships between each antenna port of the terminal and each antenna panel is reported to the network device.
The terminal according to claim 11, wherein the transceiver module is further used for:

Report the capabilities of the terminal to the network device, where the capabilities of the terminal include one or more of the following:

Whether to support uplink reference signal resources as reference signals in TCI state:

The number of ports of uplink reference signal resources;

the channel or signal type to which the TCI state is applicable;

Use of the uplink reference signal resources.
The terminal according to claim 11, wherein: the TCI state is issued through downlink control information DCI, and the DCI is used to schedule a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH.
The terminal according to claim 11, wherein the transceiver module is further configured to send an uplink reference signal to the base station through a plurality of antenna panels, wherein when each antenna panel transmits an uplink reference signal in a beam scanning manner, the plurality of The antenna ports correspond to the same antenna panel.
The terminal according to claim 12, if the TCI state includes a mapping relationship index from an antenna port to an antenna panel, it also includes a storage module for:

A list of mapping relationships between each antenna port of the terminal and each antenna panel is stored.