WO2022082378A1

WO2022082378A1 - Signal transmission method and communication apparatus

Info

Publication number: WO2022082378A1
Application number: PCT/CN2020/121971
Authority: WO
Inventors: 龚名新; 刘显达
Original assignee: 华为技术有限公司
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2022-04-28

Abstract

Embodiments of the present application provide a signal transmission method and a communication apparatus. Said method comprises: a terminal device receiving a first message, the first message comprising first information, second information, third information and fourth information, wherein the first information is used to indicate first parameter information of an SRS sent by means of a first number of ports, the second information is used to indicate second parameter information of an SRS sent by means of a second number of ports, time domain resources occupied by the SRS sent by means of the first number of ports and the SRS sent by means of the second number of ports are the same, and the first number and the second number are different; both the first parameter information and the second parameter information comprise parameter information of a first port; and the third information is used to indicate a first usage of the SRS indicated by the first information, the fourth information is used to indicate a second usage of the SRS indicated by the second information, and the first usage and the second usage are different; the terminal device sending the SRS on the first port according to the parameter information of the first port, the SRS being used for the first usage and the second usage. Hence, by means of the method, in the case where the number of antenna ports for sending an SRS is different, indicating two usages of the SRS of the same port can be realized.

Description

A signal transmission method and communication device

technical field

The present application relates to the field of wireless communication, and more particularly, to a signal transmission method and communication device.

Background technique

In the New Radio (NR) mobile communication system, when the network configures the usage of the Sounding Reference Signal (SRS) resource set at the Radio Resource Control (Radio Resource Control, RRC) layer, the SRS can be The usage of the resource set is set to beam management, codebook-based transmission, non-codebook-based transmission, and antenna switching. The user equipment sends the uplink SRS based on the usage of the configured SRS resource set.

In practical applications, when the number of transmit antenna ports of SRS of different usages is the same, the SRS of the same antenna port can be used for both codebook and antenna switching. When the number of transmit antenna ports of the codebook and antenna switching is different, the multiplexing of the two cannot be realized.

Therefore, there is an urgent need to propose a method for realizing two usage multiplexing when the number of antenna ports for transmitting SRS is different.

SUMMARY OF THE INVENTION

The present application provides a signal transmission method and a communication device, which can realize the multiplexing of two purposes when the number of antenna ports for transmitting SRS is different, thereby helping to improve the transmission performance of the system.

In a first aspect, the present application provides a signal transmission method. The method may be executed by a terminal device, or may also be executed by a chip configured in the terminal device, which is not limited in this application.

Specifically, the method includes: receiving a first message, where the first message includes first information, second information, third information and fourth information; the first information is used to indicate sounding reference signals SRS sent through a first number of ports The first parameter information, the second information is used to indicate the second parameter information of the SRS sent by the second number of ports, the time domain resources occupied by the SRS sent by the first number of ports and the SRS sent by the second number of ports are the same , the first quantity and the second quantity are different, and both the first parameter information and the second parameter information include the parameter information of the first port; the third information is used to indicate the first purpose of the SRS indicated by the first information, and the fourth information Used to indicate the second purpose of the SRS indicated by the second information, the first purpose and the second purpose are different; according to the parameter information of the first port, the SRS is sent on the first port, and the SRS is used for the first purpose and the second purpose.

It can be seen that, through the above method, when the number of antenna ports for sending SRS is different, the parameter information of the first port is included in different information, and different information is used to indicate different uses of the SRS of the first port, and the first port is used in the first port. The SRS is sent on the port, so as to realize the multiplexing of the two purposes, which is beneficial to improve the transmission performance of the system.

With reference to the first aspect, in some possible implementations, the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.

With reference to the first aspect, in some possible implementation manners, before sending the SRS, the method further includes: determining, according to the power control parameters in the third information and/or the power control parameters in the fourth information The transmit power of the transmitted SRS.

With reference to the first aspect, in some possible implementations, the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship: the path loss reference signal indicated by the power control parameters in the third information and The path loss reference signals indicated by the power control parameters in the fourth information are the same, and the ratio of the first power control parameters in the power control parameters in the third information to the first power control parameters in the power control parameters in the fourth information Equal to the ratio of the first quantity to the second quantity.

It should be noted that the ratio refers to the ratio of linear values, and in an actual system, the first power control parameter may be in dB.

With reference to the first aspect, in some possible implementation manners, the transmit power of the SRS sent on the first port is determined according to the first quantity and the second quantity.

With reference to the first aspect, in some possible implementations, when the first number is greater than the second number, the transmission power of the SRS sent on the first port is determined according to the power control parameter in the third information; in the second When the number is greater than the first number, the transmit power of the SRS sent on the first port is determined according to the power control parameter in the fourth information.

In a second aspect, the present application provides a signal transmission method. The method may be executed by a network device, or may also be executed by a chip configured in the network device, which is not limited in this application.

Specifically, the method includes: sending a first message, where the first message includes first information, second information, third information and fourth information; the first information is used to indicate sounding reference signals SRS received through a first number of ports The first parameter information, the second information is used to indicate the second parameter information of the SRS received through the second number of ports, the time domain resources occupied by the SRS received by the first number of ports and the SRS received by the second number of ports are the same , the first quantity and the second quantity are different, and both the first parameter information and the second parameter information include the parameter information of the first port; the third information is used to indicate the first purpose of the SRS indicated by the first information, and the fourth information Used to indicate the second purpose of the SRS indicated by the second information, the first purpose and the second purpose are different; according to the parameter information of the first port, the SRS is received on the first port, and the SRS is used for the first purpose and the second purpose.

It can be seen that, through the above method, when the number of antenna ports for receiving the SRS is different, the parameter information of the first port is included in different information, and the different uses of the SRS of the first port are indicated by different information, and the first port is used in the first port. The SRS is received on the port, thereby realizing the multiplexing of the two purposes, thereby helping to improve the transmission performance of the system.

With reference to the second aspect, in some possible implementation manners, the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.

With reference to the second aspect, in some possible implementation manners, before receiving the SRS, the method further includes: determining, according to the power control parameters in the third information and/or the power control parameters in the fourth information The received power of the received SRS.

With reference to the second aspect, in some possible implementations, the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship: the path loss reference signal indicated by the power control parameters in the third information and The path loss reference signals indicated by the power control parameters in the fourth information are the same, and the ratio of the first power control parameters in the power control parameters in the third information to the first power control parameters in the power control parameters in the fourth information Equal to the ratio of the first quantity to the second quantity.

With reference to the second aspect, in some possible implementations, the received power of the SRS received on the first port is determined according to the first quantity and the second quantity.

With reference to the second aspect, in some possible implementations, when the first number is greater than the second number, the received power of the SRS received on the first port is determined according to the power control parameter in the third information; When the number is greater than the first number, the received power of the SRS received on the first port is determined according to the power control parameter in the fourth information.

In a third aspect, the present application further provides a communication device. The communication apparatus has part or all of the functions of the terminal device described in the first aspect. For example, the function of the apparatus may have the function of some or all of the embodiments of the terminal device in this application, and may also have the function of independently implementing any one of the embodiments of this application. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In a possible design, the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method. The communication unit is used to support communication between the communication device and other devices. The communication device may also include a storage unit for coupling with the processing unit and the communication unit, which stores program instructions and data necessary for the communication device.

In one embodiment, the communication device includes:

a communication unit for receiving the first message;

The communication unit is configured to send an SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose.

For the relevant content of this embodiment, reference may be made to the relevant content of the above-mentioned first aspect, which will not be described in detail here.

As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

In another embodiment, the communication device may include:

a transceiver for receiving the first message;

The transceiver is configured to send an SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose. For the relevant content of this embodiment, reference may be made to the relevant content of the above-mentioned first aspect, which will not be described in detail here.

During implementation, the processor may be used to perform, for example but not limited to, baseband related processing, and the transceiver may be used to perform, for example but not limited to, radio frequency transceiving. The above-mentioned devices may be respectively arranged on chips that are independent of each other, or at least part or all of them may be arranged on the same chip. For example, processors can be further divided into analog baseband processors and digital baseband processors. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be integrated with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) on the same chip. Such a chip may be called a System on Chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the needs of product design. The embodiments of the present application do not limit the implementation form of the foregoing device.

In a fourth aspect, the present application further provides a communication device. The communication apparatus has part or all of the functions of the network device in the method example described in the second aspect. For example, the function of the communication device may have the function of some or all of the embodiments of the present application, and may also have the function of independently implementing any one of the embodiments of the present application. The functions can be implemented by hardware, or can be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In a possible design, the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method. The communication unit is used to support communication between the communication device and other devices. The communication device may further include a storage unit for coupling with the processing unit and the sending unit, which stores necessary program instructions and data of the communication device.

In one embodiment, the communication device includes:

a communication unit for sending the first message;

The communication unit is configured to receive the SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose. For the relevant content of this embodiment, reference may be made to the relevant content of the above-mentioned second aspect, which will not be described in detail here.

In another embodiment, the communication device includes:

a transceiver for sending the first message;

The transceiver is configured to receive an SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose. For the relevant content of this embodiment, reference may be made to the relevant content of the above-mentioned second aspect, which will not be described in detail here.

In a fifth aspect, the present application further provides a processor for executing the above-mentioned various methods. In the process of executing these methods, the process of sending and receiving the above-mentioned information in the above-mentioned methods can be understood as the process of outputting the above-mentioned information by the processor and the process of receiving the above-mentioned information input by the processor. When outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver for transmission by the transceiver. After the above-mentioned information is output by the processor, other processing may be required before reaching the transceiver. Similarly, when the processor receives the above-mentioned information input, the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to perform other processing before being input to the processor.

Based on the above principles, for example, the sending of the first message mentioned in the foregoing method may be understood as the processor outputting the first message. For another example, receiving the first message may be understood as the processor receiving the inputted first message.

For the operations of transmitting, sending and receiving involved in the processor, if there is no special description, or if it does not contradict its actual function or internal logic in the relevant description, it can be more generally understood as the processor output and Receive, input, etc. operations, rather than transmit, transmit, and receive operations directly performed by radio frequency circuits and antennas.

In the implementation process, the above-mentioned processor may be a processor specially used to execute these methods, or may be a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The above-mentioned memory can be a non-transitory (non-transitory) memory, such as a read-only memory (Read Only Memory, ROM), which can be integrated with the processor on the same chip, or can be set on different chips respectively. The embodiment does not limit the type of the memory and the setting manner of the memory and the processor.

In a sixth aspect, the present application further provides a communication system, the system includes at least one terminal device and at least one network device according to the above aspects. In another possible design, the system may further include other devices that interact with the terminal or network device in the solution provided in this application.

In a seventh aspect, the present application provides a computer-readable storage medium for storing computer software instructions, and when the instructions are executed by a computer, the method described in the first aspect is implemented.

In an eighth aspect, the present application provides a computer-readable storage medium for storing computer software instructions, which, when executed by a computer, enable a communication device to implement the method described in the second aspect.

In a ninth aspect, the present application also provides a computer program product comprising instructions, which, when executed on a computer, cause the computer to execute the method described in the first aspect above.

In a tenth aspect, the present application further provides a computer program product comprising instructions, which, when executed on a computer, cause the computer to execute the method described in the second aspect above.

In an eleventh aspect, the present application provides a chip system, the chip system includes a processor and an interface, the interface is used to obtain a program or an instruction, and the processor is used to call the program or instruction to implement or support a terminal device To implement the functions involved in the first aspect, for example, to determine or process at least one of the data and information involved in the above method.

In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the terminal device. The chip system may be composed of chips, or may include chips and other discrete devices.

In a twelfth aspect, the present application provides a chip system, the chip system includes a processor and an interface, the interface is used to obtain a program or an instruction, and the processor is used to call the program or instruction to implement or support a network device To implement the functions involved in the second aspect, for example, to determine or process at least one of the data and information involved in the above method.

In a possible design, the chip system further includes a memory for storing necessary program instructions and data of the network device. The chip system may be composed of chips, or may include chips and other discrete devices.

Description of drawings

FIG. 1 shows a schematic diagram of a communication system applicable to the signal transmission method and the communication device according to the embodiment of the present application;

FIG. 2 is a schematic diagram of sending SRS through comb teeth provided by an embodiment of the present application;

3 is a schematic diagram of a usage multiplexing relationship provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of a signal transmission method provided by an embodiment of the present application;

5 is a schematic diagram of an RRC configuration for multiplexing SRS resources with different numbers of antennas provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of a communication device provided by an embodiment of the present application;

7 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

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

Detailed ways

The technical solutions in the embodiments of 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 (universal mobile telecommunication system, UMTS). With the continuous development of communication systems, the technical solutions of the present application can be applied to fifth generation (5th generation, 5G) systems or new radio (NR) systems, and can also be applied to future networks, such as 6G systems or even future systems; Alternatively, a device to device (D2D) system, a vehicle-to-everything (V2X), a machine-to-machine (machine to machine, M2M) system, the embodiment of the present application does not limit the communication mode between the terminal device and the terminal device.

It should be understood that the network device in the communication system can be any device with a wireless transceiver function or a chip that can be provided in the device, and the device includes but is not limited to: evolved Node B (evolved Node B, eNB), wireless Network Controller (Radio Network Controller, RNC), Node B (Node B, NB), Base Station Controller (Base Station Controller, BSC), Base Transceiver Station (Base Transceiver Station, BTS), Home Base Station (for example, Home evolved NodeB , or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), access point (Access Point, AP), wireless relay node, wireless backhaul node, wireless fidelity (Wireless Fidelity, WIFI) system Transmission point (TP) or transmit and receive point (TRP), etc., can also be used in 5G, 6G and even future systems, such as NR, gNB in the system, or transmission point (TRP or TP), 5G One or a group (including multiple antenna panels) antenna panels of the base station in the system, or, it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU) ), or Picocell, or Femtocell, or, vehicle to everything (V2X) or roadside unit (RSU) in intelligent driving scenarios, etc. The network device may also be a device carrying base station functions in D2D, V2X, or M2M, etc. The specific type of the network device is not limited in this application. It can be understood that, in systems of different wireless access technologies, the names of the devices with network device functions may be different.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include a radio unit (RU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU implements the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer, and the DU implements the functions of the radio resource control (RRC) layer. The functions of the link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical layer (physical layer, PHY). 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, therefore, under this architecture, higher-layer signaling, such as RRC layer signaling or PHCP layer signaling, can also It is considered to be sent by DU, or, sent by DU+RU. It can be understood that the network device may be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network equipment in the access network RAN, and the CU may also be divided into network equipment in the core network CN, which is not limited herein.

In the embodiments disclosed in this application, the apparatus for implementing the function of the network device may be a network device; it may also be an apparatus capable of supporting the network device to implement the function, such as a chip system, which may be installed in the network device.

In the embodiments disclosed in the present application, the technical solutions provided by the embodiments disclosed in the present application are described by taking the apparatus for implementing the functions of the network equipment as network equipment, and taking the network equipment as a base station as an example.

It should also be understood that the terminal equipment in the communication system may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user Terminal, terminal, wireless communication device, user agent or user equipment. The terminal device in the embodiments of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, wireless terminals in the aforementioned V2X Internet of Vehicles or RSUs of wireless terminal type, etc. The embodiments of the present application do not limit application scenarios.

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

First, in this embodiment of the present application, "indication" may include direct indication and indirect indication, and may also include explicit indication and implicit indication. The information indicated by a certain information (such as the configuration information described below) is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated. For example, but not limited to, it is possible to directly indicate the information to be indicated. information, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be implemented by means of a pre-agreed (for example, a protocol stipulated) arrangement order of various information, so as to reduce the indication overhead to a certain extent.

Second, in the embodiments shown below, some scenarios are described by taking the scenario of an NR network in a wireless communication network as an example. It should be noted that the solutions in the embodiments disclosed in this application can also be applied to other wireless communication networks. , the corresponding names can also be replaced by the names of corresponding functions in other wireless communication networks.

Third, in the embodiments shown below, the first, second, and various numeral numbers are only distinguished for convenience of description. In the embodiments shown below, for a technical feature, the technical features in this technical feature are distinguished by "first", "second", "third", etc. ” and “Third” describe the technical features in no order or order of magnitude. It is not used to limit the scope of the embodiments of the present application. For example, different indications, different beams, different panels, etc. are distinguished.

Fourth, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B 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 and c may represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b, c can be single or multiple.

Fifth, the embodiments disclosed herein will present various aspects, embodiments or features of the present application around a system including a plurality of devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc., and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, combinations of these schemes can also be used.

Sixth, in the embodiments disclosed in this application, "of", "relevant" and "corresponding" may sometimes be used interchangeably. The meaning to be expressed is the same.

Seventh, in the embodiments shown below, "predefined" may be defined by a protocol, and may be pre-saved in devices (for example, including terminal devices and network devices) with corresponding codes, tables, or other information that can be used to indicate relevant information, and this application does not limit its specific implementation.

To facilitate understanding of the embodiments of the present application, the following uses the communication system shown in FIG. 1 as an example to describe in detail a communication system applicable to the signal transmission method provided by the embodiments of the present application. FIG. 1 shows a schematic diagram of a communication system 100 suitable for the signal transmission method of the embodiment of the present application. As shown in FIG. 1 , the communication system 100 may include at least one terminal device, such as the terminal device 101 shown in the figure, or a chip configured in the terminal device; the communication system 100 may also include at least one network device , the network device #1 102 or the network device #2 103 shown in the figure may also be a chip configured in the network device.

Optionally, the communication system 100 may include one or more network devices, such as network device #1 102 and network device #2 103 as shown in the figure. The network device #1 102 and the network device #2 103 may be network devices in the same cell, or may be network devices in different cells, which are not limited in this application. The figure is only an example, showing an example in which the network device #1 102 and the network device #2 103 are located in the same cell.

In order to facilitate the understanding of the embodiments of the present application, firstly, several terms involved in the present application are briefly described.

1. Reference signal (RS)

A reference signal (RS), which can also be referred to as a "pilot" signal, is a known signal provided by the transmitter to the receiver and used for channel estimation or channel sounding. Reference signals are divided into uplink reference signals and downlink reference signals.

The uplink reference signal refers to a signal sent by the terminal device to the network device, that is, the transmitting end is the terminal device, and the receiving end is the network device. The uplink reference signal is used for: uplink channel estimation (for coherent demodulation and detection of network equipment or for calculation of precoding) and uplink channel quality measurement. The uplink reference signal may include: a demodulation reference signal (Demodulation Reference Signal, DMRS) and a sounding reference signal (Sounding Reference Signal, SRS). SRS can be used for estimation of uplink channel quality and channel selection, calculation of Signal to Interference plus Noise Ratio (SINR) of uplink channel, and also for acquisition of uplink channel coefficients. In the TDD scenario, the uplink and downlink channels are reciprocal, and the SRS can also be used to obtain downlink channel coefficients. The uplink/downlink channel coefficients estimated by the base station according to the SRS can be used to determine the uplink/downlink precoding matrix, improve the uplink/downlink transmission rate, and increase the system capacity.

In NR, there are four types of SRS usage:

(1) Codebook (codebook), which is used to obtain the information of the uplink channel when the uplink transmission mode is codebook.

(2) Antenna switching, used in TDD scenarios, the uplink and downlink channels are reciprocal, and the downlink channel information is obtained.

(3) Non-codebook (non-codebook), which is used to obtain the information of the uplink channel when the uplink transmission mode is non-codebook.

(4) Beam management (beam management), used for beam management.

In the embodiments of the present application, for example, but not limited to, the purposes of the SRS are codebook and antenna switching, that is, the SRS of the same port (port) is used for both codebook and antenna switching.

2. Sequence

In NR, the base sequence used by the SRS is determined according to the number of subcarriers occupied by each symbol of the SRS, and the base sequence used is a low peak-to-average power ratio (peak-to-average power ratio) based on the ZC sequence (Zadoff-Chu sequence). power ratio, PAPR) sequence. In NR, for each length, 30 or 60 base sequences are defined. Once the sequence length required by the SRS is determined, a base sequence is determined from the 30 or 60 base sequences of the corresponding length for SRS transmission. , which of the 30 or 60 base sequences is specifically used is configured through high-layer signaling.

The specific process of SRS transmission is as follows: determine the time-frequency resources occupied by the SRS, that is, the symbols occupied by the SRS, and the subcarriers occupied by each symbol. It should be noted that in the protocol, the SRS is sent in the form of a comb. The comb means that the SRS does not occupy all sub-carriers, but only occupies equally spaced sub-carriers, as shown in Figure 2, which respectively represent the comb teeth 2 and comb 4 to send SRS. In Figure 2, one square represents one subcarrier.

According to the above definition, the number of subcarriers occupied by each symbol of SRS is:

m _{SRS, b} represents the number of RBs sent by SRS,

Indicates the number of sub-carriers included in an RB, and K _TC represents the size of the comb teeth.

The base sequence used by each symbol is determined according to the number of subcarriers occupied by each SRS symbol and high-layer signaling, the cyclic shift value is determined according to the signaling configuration, and the sequence used by the SRS is determined according to the base sequence and the cyclic shift value. Assuming that the SRS occupies N subcarriers on each symbol, the sequence used by the SRS is the cyclically extended sequence of the Nzc-long ZC sequence:

The value range of n is 0 to N-1, where Nzc is the largest prime number less than N, q is the root of the ZC sequence, determined by the high-level configuration information and the position of the symbol and the sequence length Nzc, A is a complex constant, α is a real constant representing the cyclic shift value, and x _q (n mod N _ZC ) represents the base sequence.

The sequences are mapped onto subcarriers, and SRS signals are generated and transmitted.

It is understandable that the above only takes the ZC sequence as an example to introduce the SRS sending process, but it should be noted that when the sequence length is less than or equal to 24, the SRS uses a low PAPR computer generated sequence (Computer Generated Sequence, CGS), the same applicable to the embodiments of the present application.

3. Quasi Co-Location (QCL)

There is a QCL relationship between two antenna ports, which means that the channel large-scale parameters of one antenna port can be derived from the channel large-scale parameters obtained by the other antenna port. Alternatively, if the two antenna ports have a QCL relationship, then the large-scale characteristics of the channel that transmits a signal at one port can be inferred from the large-scale characteristics of the channel that transmits a signal at the other port, also referred to simply as having a QCL relationship between the two signals . Signals corresponding to antenna ports with a QCL relationship have the same parameters, alternatively, the parameters of one antenna port can be used to determine the parameters of another antenna port with a QCL relationship to that antenna port, or both antenna ports have the same parameters , or the parameter difference between the two antenna ports is less than a certain threshold.

In the QCL relationship, the referenced signal may be a source signal, a source reference signal or a reference reference signal, and another signal may be referred to as a target signal or a target reference signal.

The source signal, for example, but not limited to, may be a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a synchronization signal block (synchronization signal block, SSB), a synchronization signal physical broadcast channel block (synchronization signal physical) broadcast channel block, SSPBCHB), primary synchronization signal (PSS), or secondary synchronization signal (secondary synchronization signal, SSS), downlink control channel (physical downlink control channel, PDCCH), etc. If the CSI-RS configured by the terminal is used for time tracking (time tracking) and/or frequency tracking (frequency tracking), the CSI-RS used for tracking may be referred to as tracking reference signal (tracking reference signal, TRS for short) ).

The target signal, for example but not limited to, may be a DMRS, a CSI-RS, or a signal of a side link (Sidelink). Wherein, the DMRS may be in a physical downlink control channel (physical downlink control channel, PDCCH) or a physical downlink share channel (physical downlink share channel, PDSCH), and the DMRS is used for channel estimation, so as to use the channel estimation result to analyze the PDCCH or PDSCH. demodulate.

Target and source signals having a QCL relationship may belong to the same type of signals of different indices, or belong to different types of signals. For example, both the source signal and the target signal may be CSI-RS, but with different indices. For another example, the source signal is CSI-RS, and the target signal is DMRS.

The channel large-scale parameters of the signal may include one or more of the following: average gain, average delay, delay spread, Doppler shift, Doppler shift Doppler spread, spatial parameter.

The spatial parameters may include one or more of the following parameters: angle of arrival (AoA), dominant (Dominant) angle of incidence AoA, average angle of incidence, power angular spectrum (PAS) of the angle of incidence, Angle of Departure (AOD), Dominant AoD, Average AoD, Angle of Arrival (AOA), Dominant AoA, Average AoA ), channel correlation matrix, power angle spread spectrum of arrival angle, power angle spread spectrum of departure angle, transmit channel correlation, receive channel correlation, transmit beamforming, receive beamforming, spatial channel correlation, spatial filter, spatial Filter parameters, spatial Rx parameters, etc.

At present, the standard defines four types of QCL relationships, and the channel large-scale parameters of different types of QCL relationships are also different, for example:

A type of QCL relationship (QCL Type A): Doppler shift, Doppler spread, average delay, delay spread;

QCL relationship of type B (QCL Type B): Doppler shift, Doppler spread;

QCL relationship of type C (QCL Type C): average delay, Doppler shift;

D-type QCL relationship (QCL Type D): Spatial Rx parameter.

Among them, Doppler shift can be translated as Doppler shift, Doppler frequency shift or Doppler frequency offset.

For the source signal and the target signal with QCL relationship, the parameters included in the channel large-scale parameters of the two are the same. For example, if the source signal and the target signal have QCL Type A, it means that the Doppler shift, Doppler spread, average delay, and delay spread of the source signal can be used to derive the Doppler shift, Doppler spread, average delay, and delay spread of the target signal.

4. Port

Port, the concept of port is logical, and different ports can correspond to different code domain resources or air domain resources. For example, but not limited to, the port of PDSCH/PUSCH, or the port of the corresponding DMRS, or the port of the corresponding SRS. Different ports correspond to different signal streams, which are separated in space by orthogonal beam directions, and the receiving end can receive or send signals independently on different ports.

In the embodiments of the present application, the same parameters are configured in different resources, and the same parameters may be, for example, but not limited to, comb teeth, sequences, symbols, frequency positions, and frequency hopping patterns, etc., that is, it is considered that different resources correspond to port is the same port.

Hereinafter, without loss of generality, an interaction process between a terminal device and a network device is used as an example to describe the signal transmission method provided by the embodiment of the present application in detail.

In the NR system, when the network configures the usage of the SRS resource set at the Radio Resource Control (RRC) layer, the usage of the SRS resource set can be set to beam management, codebook-based ) transmission, non-codebook based transmission, antenna switching. The user equipment sends the uplink SRS based on the usage of the configured SRS resource set.

In practical applications, the terminal device receives radio resource control (RRC) signaling. In the RRC signaling, the SRS is configured for the user through the SRS resource set (SRS resource set) field and the SRS resource (SRS resource) field. The SRS resource set field is used to indicate the ID of the SRS resource set, the purpose of the SRS, and power control parameters. The SRS resource field is used to indicate the ID of the SRS resource, the number of ports, the time-frequency position occupied by the SRS, and the sequence used by the SRS. When the number of antenna ports for sending SRS is the same, the SRS of the same antenna port can be used for both codebook and antenna switching.

In the following, the SRS used for the codebook is 2 ports, and the SRS used for antenna switching is 2T4R as an example for illustration.

In a possible implementation, the SRS used for the codebook is 2 ports, the network device configures the SRS resource through RRC signaling, and the SRS resource field included in the RRC signaling is marked as the first SRS resource field, the first SRS resource field. The SRS resource field is used to indicate the SRS of 2 ports; the SRS resource set field included in the RRC signaling is denoted as the first SRS resource set field, and the first SRS resource set field includes the SRS indicated by the first SRS resource field , and the usage indicated by the first SRS resource set field is a codebook.

In another possible implementation, the SRS used for antenna switching is 2T4R, the network device configures SRS resources through RRC, and the SRS resource fields included in the RRC signaling are denoted as the first SRS resource field and the second SRS resource field , each SRS resource contains SRS of 2 ports; the SRS resource set field included in the RRC signaling is denoted as the second SRS resource set field, and the second SRS resource set field includes the first SRS resource field and the second SRS resource set field. The two SRSs indicated by the SRS resource field, and the usage indicated by the second SRS resource set field is antenna switching.

As shown in Figure 3, SRS multiplexing is achieved by configuring different usages for the SRS indicated in the same SRS resource, that is, the SRS of the two ports indicated in the first SRS resource field will be used for both codebook and antenna switching. After the terminal device receives the RRC signaling, it will send 4 ports of SRS. And this application is only used when the number of antenna ports for transmitting SRS is the same. When the codebook and antenna switching have different numbers of antenna ports, that is, the number of SRS antenna ports contained in the SRS resources corresponding to the two usages is different, in this case, the multiplexing of the two cannot be realized.

In view of this, the present application provides a signal transmission method, the method includes: a terminal device receives a first message, where the first message includes first information, second information, third information and fourth information; wherein, the first information It is used to indicate the first parameter information of the SRS sent through the first number of ports, the second information is used to indicate the second parameter information of the SRS sent through the second number of ports, the SRS sent by the first number of ports and the second parameter information of the SRS sent through the first number of ports. The time domain resources occupied by the SRS sent by the two numbers of ports are the same, and the first number and the second number are different. The first parameter information and the second parameter information both include the parameter information of the first port; the third information is used to indicate the first number The first use of the SRS indicated by the first information, the fourth information is used to indicate the second use of the SRS indicated by the second information, and the first use and the second use are different. The terminal device sends the SRS on the first port according to the information of the first port, and the SRS is used for the first purpose and the second purpose.

It can be seen that this method can realize two purposes of indicating the SRS of the same port by including the parameter information of the first port in different information when the number of antenna ports for sending the SRS is different.

On the basis of the existing protocol, the above method can completely use the existing signaling and format, without adding new signaling or changing the definition of the existing signaling, and can be well compatible with the existing system.

The following describes the signal transmission method provided by the embodiment of the present application with reference to FIG. 4 . It should be noted that the signal transmission method provided in the embodiments of the present application may be applied to a wireless communication system, for example, the communication system 100 shown in FIG. 1 . Communication devices in the communication system may have a wireless communication connection relationship. For example, the terminal device 101 shown in FIG. 1 may have a wireless communication connection relationship with the network device #1 102 and the network device #2 103 respectively, which is not limited in this application.

Please refer to FIG. 4 , which is a schematic flowchart of a signal transmission method 400 provided by an embodiment of the present application, shown from the perspective of device interaction. As shown in FIG. 4 , the method 400 shown in FIG. 4 may include steps 410 to 420 . The steps in the method 400 will be described in detail below with reference to the accompanying drawings.

Step 410, the terminal device receives the first message. Correspondingly, the network device sends the first message.

Wherein, the first message includes: the first message includes first information, second information, third information and fourth information; the first information is used to indicate the first parameter information of the SRS sent through the first number of ports, The second information is used to indicate second parameter information of the SRS sent through the second number of ports, the SRS sent by the first number of ports and the SRS sent by the second number of ports occupy the same time domain resources, and the first The quantity is different from the second quantity, and both the first information and the second information include parameter information of the first port; the third information is used to indicate the first use of the SRS indicated by the first information, and the fourth information is used to indicate the first use of the SRS. The second use of the SRS indicated by the second information, the first use and the second use are different.

In this embodiment of the present application, the first information, second information, third information and fourth information included in the first message can be understood as the first information, second information, third information and fourth information are the first information A field in the message. It can also be understood that one of the pieces of information in the first message may be information composed of several fields, and one of the pieces of information in the first message may also be indicated by the same field of the same information. This embodiment of the present application does not limit this.

Optionally, the first message may be a radio resource control (radio resource control, RRC) message, a media access control element (Media access control element, MAC-CE) or downlink control signaling (Downlink control information, DCI). It can be understood that the first message in this embodiment of the present application may also be carried in one or more of the above-mentioned signaling, and it is not excluded that the first message is other signaling, nor does it exclude that other names are defined for the above-mentioned signaling. possible. This application does not limit this.

Corresponding to the existing protocol, the embodiment of the present application is described in detail by taking the first message as RRC signaling as an example. The network device configures the SRS resource through RRC signaling, and the fields in the RRC signaling are the first information, the second information, the third information and the fourth information. The first information and the second information correspond to the SRS resource (SRS resource) field in the RRC signaling, and the third information and the fourth information correspond to the SRS resource set (SRS resource set) field in the RRC signaling. The network device configures the SRS for the terminal device through the SRS resource set (SRS resource set) field and the SRS resource (SRS resource) field in the RRC signaling.

As shown in Figure 5, when the SRS used for the codebook is 1 port and the SRS used for antenna switching is 2T4R, the RRC signaling includes three SRS resource fields, and the IDs of the SRS resource fields are 0, 1, and 2, respectively. And the SRS resource field whose ID is 0 indicates the SRS of the first port, and the SRS resource field whose ID is 1 indicates the SRS of the first port and the second port, that is, the first quantity is 1, and the second quantity is 2. The RRC signaling includes two SRS resource set fields, denoted as the first resource set field and the second resource set field, respectively. The first resource set field indicates the SRS resource with ID 0 indicated by the SRS resource field, and indicates usage as " codebook", the second resource set field indicates the SRS resources with

IDs

1 and 2 indicated by the SRS resource field, and indicates that the usage is "antenna switching".

It is assumed that the SRS resource field with ID 0 and the SRS resource field with ID 1 indicate the same first port, and the SRS is sent through the first port, that is, the SRS of the first port in the SRS resource field with ID 0 is the same as the first port. The SRS configuration parameters of the first port in the SRS resource field with ID 1 are the same, and the parameters include sequence information, time-frequency resource information, etc., that is, the two SRS resource fields indicate the SRS of the same port, which implicitly indicates The SRS of this first port is used for both "codebook" and "antenna switching". It can be understood that the SRS resource field whose ID is 0 corresponds to the first information, and the SRS resource field whose ID is 1 corresponds to the second information. When the SRS resource field with ID 1 corresponds to the second information, the configuration parameters in the SRS resource field with ID 0 are the same as the first port configuration parameters corresponding to the SRS resource field with ID 1. The first port configured by the SRS resource field with the ID of 1 is only an example, and the SRS resource field with the ID of 2 may also be used to configure the first port. This embodiment of the present application does not limit this.

It can be understood that the first set field corresponds to the above-mentioned third information, and the second set field corresponds to the above-mentioned fourth information.

It can be understood that the above-mentioned number of ports is only an exemplary description. In practical applications, the number of antenna ports may be different, which is not limited in this embodiment of the present application.

Optionally, the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information. For a detailed explanation of the sequence information and the QCL information, reference may be made to the corresponding descriptions in the noun explanation section in the embodiments of the present application, which will not be repeated here.

Optionally, the third information and the fourth information include at least one of the following: SRS usage information and power control parameters.

Step 420, the terminal device sends the SRS on the first port according to the parameter information of the first port. Correspondingly, the network device receives the SRS on the first port according to the parameter information of the first port. SRS is used for the first use and the second use.

Optionally, before sending the SRS, the terminal device also needs to determine the time-frequency resource, the number of ports, the sequence, and the sending power of the SRS according to the indication of the first message.

It can be understood that since both the first information and the second information include the parameter information of the first port, the first port is multiplexed by two usages, and since the third information and the fourth information both indicate the function of the first port. Therefore, the first port has two sets of power control parameters. In this case, the transmit power of the SRS transmitted on the first port is determined according to the power control parameter in the third information and/or the power control parameter in the fourth information.

In a possible implementation manner, the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship: the path loss reference signal indicated by the power control parameters in the third information and the path loss reference signal in the fourth information The path loss reference signals indicated by the power control parameters are the same, and the ratio of the first power control parameters in the power control parameters in the third information to the first power control parameters in the power control parameters in the fourth information is equal to the first number and The ratio of the second quantity. It should be noted that the ratio refers to the ratio of linear values, and in an actual system, the first power control parameter may be in dB.

In another possible implementation manner, the transmit power of the SRS sent on the first port is determined according to the first quantity and the second quantity. When the first number is greater than the second number, the transmission power of the SRS sent on the first port is determined according to the power control parameter in the third information. In the case that the second number is greater than the first number, the transmission power of the SRS sent on the first port is determined according to the power control parameter in the fourth information.

It can be understood that, the above two possible ways of determining the transmit power of the SRS may be determined by one implementation manner, may also be determined by a combination of the two implementation manners, or may be determined by other manners, which are not implemented in this embodiment of the present application. limited.

In the above embodiments provided by the present application, the methods provided by the embodiments of the present application are respectively introduced from the perspectives of network devices, terminals, and interaction between network devices and terminals. In order to implement the functions in the methods provided by the above embodiments of the present application, the network device and the terminal may include hardware structures and software modules, and implement the above functions in the form of hardware structures, software modules, or hardware structures plus software modules. A certain function among the above functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.

FIG. 6 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. As shown in FIG. 6 , the communication apparatus 1000 may include a communication unit 1100 and a processing unit 1200 .

In a possible design, the communication apparatus 1000 may correspond to the terminal device in the above method embodiments, for example, may be a terminal device or a chip configured in the terminal device.

Specifically, the communication apparatus 1000 may correspond to a terminal device in the method in FIG. 4 according to an embodiment of the present application, and the communication apparatus 1000 may include a unit for executing the method performed by the terminal device in the method in FIG. 4 . Moreover, each unit in the communication apparatus 1000 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method in the method in FIG. 4 .

For example, but not limited to, when the communication device 1000 is used to perform the method in FIG. 4 , the communication unit 1100 can be used to perform step 410 in the method, and the processing unit 1200 can be used to perform step 420 in the method.

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and reference may be made to the relevant content described in the above-mentioned FIG. 4 , which is not repeated here for brevity.

It should also be understood that when the communication device 1000 is a terminal device, the communication unit 1100 in the communication device 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in FIG. 7 , and the processing unit 1200 in the communication device 1000 may Corresponds to the processor 2010 in the terminal device 2000 shown in FIG. 7 .

It should also be understood that when the communication apparatus 1000 is a chip configured in a terminal device, the communication unit 1100 in the communication apparatus 1000 may be an input/output interface.

In another possible design, the communication apparatus 1000 may correspond to the network device in the above method embodiments, for example, may be a network device or a chip configured in the network device.

Specifically, the communication apparatus 1000 may correspond to the network device in the method in FIG. 4 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for executing the method performed by the network device in the method in FIG. 4 . Moreover, each unit in the communication apparatus 1000 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow in the method in FIG. 4 .

It should also be understood that when the communication apparatus 1000 is a network device, the communication unit in the communication apparatus 1000 may correspond to the transceiver 3200 in the network apparatus 3000 shown in FIG. 8 , and the processing unit 1200 in the communication apparatus 1000 may Corresponds to the processor 3100 in the network device 3000 shown in FIG. 8 .

It should also be understood that when the communication apparatus 1000 is a chip configured in a network device, the communication unit 1100 in the communication apparatus 1000 may be an input/output interface.

FIG. 7 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application. The terminal device 2000 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiments.

As shown in the figure, the terminal device 2000 includes a processor 2010 and a transceiver 2020 . Optionally, the terminal device 2000 further includes a memory 2030 . The processor 2010, the transceiver 2020 and the memory 2030 can communicate with each other through an internal connection path to transmit control and/or data signals. The memory 2030 is used to store computer programs, and the processor 2010 is used to retrieve data from the memory 2030 The computer program is called and executed to control the transceiver 2020 to send and receive signals. Optionally, the terminal device 2000 may further include an antenna 2040 for sending the uplink data or uplink control signaling output by the transceiver 2020 through wireless signals.

The above-mentioned processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program codes stored in the memory 2030 to realize the above-mentioned functions. During specific implementation, the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010 . The processor 2010 may correspond to the processing unit in FIG. 6 .

The foregoing transceiver 2020 may correspond to the communication unit in FIG. 6 , and may also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Among them, the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that the terminal device 2000 shown in FIG. 7 can implement various processes involving the terminal device in the method embodiment in FIG. 4 . The operations and/or functions of each module in the terminal device 2000 are respectively to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments. To avoid repetition, the detailed descriptions are appropriately omitted here.

The above-mentioned processor 2010 may be used to perform the actions described in the foregoing method embodiments that are implemented inside the terminal device, and the transceiver 2020 may be used to perform the actions described in the foregoing method embodiments that the terminal device sends to or receives from the network device. action. For details, please refer to the descriptions in the foregoing method embodiments, which will not be repeated here.

Optionally, the above terminal device 2000 may further include a power supply 2050 for providing power to various devices or circuits in the terminal device.

In addition, in order to make the functions of the terminal device more complete, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, etc., the audio circuit 2080 may also include a speaker 2082, a microphone 2084, and the like.

FIG. 8 is a schematic structural diagram of a network device provided by an embodiment of the present application, which may be, for example, a schematic structural diagram of a base station. The base station 3000 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments.

As shown in the figure, the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3100 and one or more baseband units (BBU) (also referred to as digital units) , digital unit, DU)3200. The RRU 3100 may be called a transceiver unit, which corresponds to the communication unit 1200 in FIG. 6 . Optionally, the transceiver unit 3100 may also be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 3101 and a radio frequency unit 3102 . Optionally, the transceiver unit 3100 may include a receiving unit and a sending unit, the receiving unit may correspond to a receiver (or called a receiver, a receiving circuit), and the sending unit may correspond to a transmitter (or called a transmitter, a sending circuit). The part of the RRU 3100 is mainly used for sending and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending indication information to terminal equipment. The part of the BBU 3200 is mainly used to perform baseband processing, control the base station, and the like. The RRU 3100 and the BBU 3200 may be physically set together, or may be physically separated, that is, a distributed base station.

The BBU 3200 is the control center of the base station, and can also be called a processing unit, which can correspond to the processing unit 1100 in FIG. 6 , and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spectrum spreading, and the like. For example, the BBU (processing unit) may be used to control the base station to perform the operation procedure of the network device in the foregoing method embodiments, for example, to generate the foregoing indication information and the like.

In an example, the BBU 3200 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or may respectively support a wireless access network of different access standards. Wireless access network (such as LTE network, 5G network or other network). The BBU 3200 also includes a memory 3201 and a processor 3202. The memory 3201 is used to store necessary instructions and data. The processor 3202 is configured to control the base station to perform necessary actions, for example, to control the base station to execute the operation flow of the network device in the foregoing method embodiments. The memory 3201 and processor 3202 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.

It should be understood that the base station 3000 shown in FIG. 8 can implement various processes involving network devices in the method embodiment of FIG. 4 . The operations and/or functions of each module in the base station 3000 are respectively to implement the corresponding processes in the foregoing method embodiments. For details, reference may be made to the descriptions in the foregoing method embodiments. To avoid repetition, the detailed descriptions are appropriately omitted here.

The above-mentioned BBU 3200 may be used to perform the actions described in the foregoing method embodiments that are implemented internally by the network device, while the RRU 3100 may be used to perform the actions described in the foregoing method embodiments that the network device sends to or receives from the terminal device. For details, please refer to the descriptions in the foregoing method embodiments, which will not be repeated here.

An embodiment of the present application further provides a processing apparatus, including a processor and an interface; the processor is configured to execute the communication method in the foregoing method embodiment.

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

In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or 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. To avoid repetition, detailed description is omitted here.

It should be noted that the processor in this embodiment of the present application may be an integrated circuit chip, which has a 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 aforementioned processors may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable 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 method disclosed in conjunction with the embodiments of the present application may be directly 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 (synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer is made to execute the embodiment of FIG. 4 . method.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable medium, where the computer-readable medium stores program codes, when the program codes are executed on a computer, the computer is made to execute the method in the embodiment of FIG. 4 . method.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.

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 discs, SSD)) etc.

The network equipment in each of the above apparatus embodiments completely corresponds to the terminal equipment and the network equipment or terminal equipment in the method embodiments, and corresponding steps are performed by corresponding modules or units. For the sending step, other steps except sending and receiving may be performed by a processing unit (processor). For functions of specific units, reference may be made to corresponding method embodiments. The number of processors may be one or more.

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 pass through a signal having one or more data packets (such as 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) local and/or remote processes to communicate.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware accomplish. 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, and may be in 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.

In the above embodiments, the functions of each functional unit 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 (programs). When the computer program instructions (programs) 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 is by wire (eg, coaxial cable, fiber optic, 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 usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.

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 signal transmission method, comprising:

receiving a first message, the first message including first information, second information, third information and fourth information;

The first information is used to indicate the first parameter information of the sounding reference signal SRS sent through the first number of ports, the second information is used to indicate the second parameter information of the SRS sent through the second number of ports, and the The time domain resources occupied by the SRS sent by the first number of ports and the SRS sent by the second number of ports are the same, the first number and the second number are different, and the first parameter information and the The second parameter information includes parameter information of the first port;

The third information is used to indicate the first use of the SRS indicated by the first information, the fourth information is used to indicate the second use of the SRS indicated by the second information, the first use and the The second purpose is different;

The SRS is sent on the first port according to the parameter information of the first port, and the SRS is used for the first purpose and the second purpose.
The method according to claim 1, wherein the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.
The method according to claim 1 or 2, wherein before sending the SRS, the method further comprises:

According to the power control parameter in the third information and/or the power control parameter in the fourth information, the transmit power of the SRS sent on the first port is determined.
The method according to claim 3, wherein the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship:

The path loss reference signal indicated by the power control parameter in the third information is the same as the path loss reference signal indicated by the power control parameter in the fourth information,

And the ratio of the first power control parameter in the power control parameters in the third information to the first power control parameter in the power control parameters in the fourth information is equal to the first quantity and the second quantity ratio.
The method according to claim 3 or 4, wherein the determining the transmit power of the SRS sent on the first port comprises:

According to the first quantity and the second quantity, the transmit power of the SRS sent on the first port is determined.
The method of claim 5, wherein:

In the case that the first number is greater than the second number, determining the transmission power of the SRS sent on the first port according to the power control parameter in the third information;

In the case that the second number is greater than the first number, the transmission power of the SRS sent on the first port is determined according to the power control parameter in the fourth information.
A signal transmission method, comprising:

sending a first message, the first message including first information, second information, third information and fourth information;

The first information is used to indicate the first parameter information of the sounding reference signal SRS received through the first number of ports, the second information is used to indicate the second parameter information of the SRS received through the second number of ports, and the The time domain resources occupied by the SRS received by the first number of ports and the SRS received by the second number of ports are the same, the first number and the second number are different, and the first parameter information and the The second parameter information includes parameter information of the first port;

The third information is used to indicate the first use of the SRS indicated by the first information, the fourth information is used to indicate the second use of the SRS indicated by the second information, the first use and the The second purpose is different;

The SRS is received on the first port according to the parameter information of the first port, and the SRS is used for the first use and the second use.
The method according to claim 7, wherein the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.
The method according to claim 7 or 8, wherein before receiving the SRS, the method further comprises:

The received power of the SRS received on the first port is determined according to the power control parameter in the third information and/or the power control parameter in the fourth information.
The method according to claim 9, wherein the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship:

The path loss reference signal indicated by the power control parameter in the third information is the same as the path loss reference signal indicated by the power control parameter in the fourth information,

And the ratio of the first power control parameter in the power control parameters in the third information to the first power control parameter in the power control parameters in the fourth information is equal to the first quantity and the second quantity ratio.
The method according to claim 9 or 10, wherein the determining the received power of the SRS received on the first port comprises:

According to the first number and the second number, the received power of the SRS received on the first port is determined.
The method of claim 11, wherein:

In the case that the first number is greater than the second number, determining the received power of the SRS received on the first port according to the power control parameter in the third information;

In the case that the second number is greater than the first number, the received power of the SRS received on the first port is determined according to the power control parameter in the fourth information.
A signal transmission device, comprising:

a communication unit, configured to receive a first message, where the first message includes first information, second information, third information and fourth information;

The first information is used to indicate the first parameter information of the sounding reference signal SRS sent through the first number of ports, the second information is used to indicate the second parameter information of the SRS sent through the second number of ports, and the The time domain resources occupied by the SRS sent by the first number of ports and the SRS sent by the second number of ports are the same, the first number and the second number are different, and the first parameter information and the The second parameter information includes parameter information of the first port;

The third information is used to indicate the first use of the SRS indicated by the first information, the fourth information is used to indicate the second use of the SRS indicated by the second information, the first use and the The second purpose is different;

and a processing unit, configured to send the SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose.
The apparatus according to claim 13, wherein the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.
The apparatus according to claim 13 or 14, wherein before sending the SRS, the processing unit is further configured to:

According to the power control parameter in the third information and/or the power control parameter in the fourth information, the transmit power of the SRS sent on the first port is determined.
The device according to claim 15, wherein the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship:

The path loss reference signal indicated by the power control parameter in the third information is the same as the path loss reference signal indicated by the power control parameter in the fourth information,

And the ratio of the first power control parameter in the power control parameters in the third information to the first power control parameter in the power control parameters in the fourth information is equal to the first quantity and the second quantity ratio.
The device according to claim 15 or 16, wherein the processing unit is further configured to:

According to the first quantity and the second quantity, the transmit power of the SRS sent on the first port is determined.
The apparatus of claim 17, wherein:

In the case that the first number is greater than the second number, determining the transmission power of the SRS sent on the first port according to the power control parameter in the third information;

In the case that the second number is greater than the first number, the transmission power of the SRS sent on the first port is determined according to the power control parameter in the fourth information.
A signal transmission device, comprising:

a communication unit, configured to send a first message, where the first message includes first information, second information, third information and fourth information;

The first information is used to indicate the first parameter information of the sounding reference signal SRS received through the first number of ports, the second information is used to indicate the second parameter information of the SRS received through the second number of ports, and the The time domain resources occupied by the SRS received by the first number of ports and the SRS received by the second number of ports are the same, the first number and the second number are different, and the first parameter information and the The second parameter information includes parameter information of the first port;

The third information is used to indicate the first use of the SRS indicated by the first information, the fourth information is used to indicate the second use of the SRS indicated by the second information, the first use and the The second purpose is different;

and a processing unit, configured to receive the SRS on the first port according to the parameter information of the first port, where the SRS is used for the first purpose and the second purpose.
The apparatus according to claim 19, wherein the first parameter information or the second parameter information includes at least one of the following: sequence information, time-frequency resource information, and quasi-co-located QCL information.
The apparatus according to claim 19 or 20, wherein before receiving the SRS, the processing unit is further configured to:

The received power of the SRS received on the first port is determined according to the power control parameter in the third information and/or the power control parameter in the fourth information.
The device according to claim 21, wherein the power control parameters in the third information and the power control parameters in the fourth information satisfy the following relationship:

The path loss reference signal indicated by the power control parameter in the third information is the same as the path loss reference signal indicated by the power control parameter in the fourth information,

and the ratio of the first power control parameter in the power control parameters in the third information to the first power control parameter in the power control parameters in the fourth information is equal to the first number and the second number ratio.
The device according to claim 21 or 22, wherein the processing unit is further configured to:

According to the first number and the second number, the received power of the SRS received on the first port is determined.
The device of claim 23, wherein:

In the case that the first number is greater than the second number, determining the received power of the SRS received on the first port according to the power control parameter in the third information;

In the case that the second number is greater than the first number, the received power of the SRS received on the first port is determined according to the power control parameter in the fourth information.
A communication device, comprising: a processor and a memory;

the memory is used to store computer programs;

The processor is configured to execute a computer program stored in the memory, so that the apparatus implements the method according to any one of claims 1 to 6, or performs the method according to any one of claims 7 to 12 .
A communication apparatus, comprising at least one processor and an interface, the at least one processor being configured to execute a computer program, so that the apparatus implements the method as claimed in any one of claims 1 to 6, or performs the method as claimed in claim 1 The method of any one of 7 to 12.
A computer-readable storage medium, characterized in that it is used to store a computer program that, when the computer program runs on a computer, causes the computer to execute the method according to any one of claims 1 to 6, or , performing the method as claimed in any one of claims 7 to 12.
A computer program product, comprising: when the computer program product runs on a communication device, causing the communication device to execute the method according to any one of claims 1 to 6, or to execute the method described in any of claims 1 to 6. The method of any one of claims 7 to 12.