CN117676669A

CN117676669A - Transmission parameter determination method and device

Info

Publication number: CN117676669A
Application number: CN202211020278.6A
Authority: CN
Inventors: 宋振远; 王欢; 杨坤
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2024-03-08

Abstract

The embodiment of the application discloses a method and equipment for determining transmission parameters, which belong to the technical field of communication, and the method for determining downlink transmission parameters comprises the following steps: the network side equipment sends a measurement reference signal, wherein the measurement reference signal comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the network side equipment receives first feedback information, wherein the first feedback information is obtained by the terminal through channel estimation based on a first signal and a second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel; and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information. The embodiment of the application also provides a method for determining the uplink transmission parameters.

Description

Transmission parameter determination method and device

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and equipment for determining transmission parameters.

Background

The reconfigurable smart reflective surface (Reconfigurable Intelligent Surface, RIS) is a plane made up of a large number of passive reflective devices that can be controlled by the RIS controller to be able to independently vary the amplitude, phase of the incident signal to achieve fine 3D beamforming. Since RIS does not use a wireless radio frequency link, it can be densely deployed and has lower expansion costs and energy consumption.

Since the RIS type of wireless auxiliary devices is composed of a large number of passive reflecting devices, there is generally no capability to process signals, which makes it difficult for the wireless auxiliary devices to cascade channel estimation. Therefore, how to determine the transmission parameters from the network side device to the wireless auxiliary device is a technical problem that needs to be solved in the related art.

Disclosure of Invention

The embodiment of the application provides a method and equipment for determining transmission parameters, which can solve the problem that the communication performance is affected because the transmission parameters from network side equipment to wireless auxiliary equipment cannot be determined.

In a first aspect, a method for determining a downlink transmission parameter is provided, including: the method comprises the steps that network side equipment sends measurement reference signals, wherein the measurement reference signals comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals; the network side equipment receives first feedback information, wherein the first feedback information is obtained by a terminal through channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information.

In a second aspect, a method for determining a downlink transmission parameter is provided, including: the wireless auxiliary equipment receives a measurement reference signal from network side equipment and forwards the measurement reference signal to a terminal, wherein the measurement reference signal sent by the network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

In a third aspect, a method for determining a downlink transmission parameter is provided, including: the method comprises the steps that a terminal receives a measurement reference signal, wherein the measurement reference signal sent by network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; and the terminal obtains first feedback information according to the measurement reference signal and sends the first feedback information, wherein the first feedback information is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

In a fourth aspect, a method for determining an uplink transmission parameter is provided, including: the method comprises the steps that network side equipment sends resource indication information, wherein the resource indication information is used for scheduling a terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals; the network side equipment receives the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment; and the network side equipment determines uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment according to the measurement reference signals.

In a fifth aspect, a method for determining an uplink transmission parameter is provided, including: the wireless auxiliary equipment receives a measurement reference signal from a terminal and forwards the measurement reference signal to network side equipment, wherein the measurement reference signal transmitted by the terminal comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

In a sixth aspect, a method for determining an uplink transmission parameter is provided, including: a terminal receives resource indication information, wherein the resource indication information is used for scheduling the terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals; the terminal sends a measurement reference signal according to the resource indication information, wherein a wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, the first channel is a channel from the terminal to network side equipment, and the second channel is a cascade channel from the terminal to wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

In a seventh aspect, a determining apparatus for a downlink transmission parameter is provided, which is applied to a network side device, and includes: a transmitting module, configured to transmit a measurement reference signal, where the measurement reference signal transmitted by the network side device includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the receiving module is used for receiving first feedback information, wherein the first feedback information is obtained by a terminal through channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; and the determining module is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information.

An eighth aspect provides a downlink transmission parameter determining apparatus, applied to a wireless auxiliary device, including: the communication module is used for receiving a measurement reference signal from the network side equipment and forwarding the measurement reference signal to the terminal, wherein the measurement reference signal sent by the network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

A ninth aspect provides a determining device for a downlink transmission parameter, applied to a terminal, including: the receiving module is used for receiving a measurement reference signal, wherein the measurement reference signal transmitted by the network side equipment comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; and the sending module is used for obtaining first feedback information according to the measurement reference signal and sending the first feedback information, wherein the first feedback information is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

In a tenth aspect, there is provided a determining apparatus for uplink transmission parameters, applied to a network side device, including: a transmitting module, configured to transmit resource indication information, where the resource indication information is used to schedule a terminal to transmit a measurement reference signal, where the measurement reference signal transmitted by the terminal includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; a receiving module, configured to receive the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment; and the determining module is used for determining uplink channel parameters of the terminal to the network side equipment through the wireless auxiliary equipment according to the measurement reference signals.

An eleventh aspect provides an uplink transmission parameter determining apparatus, applied to a wireless auxiliary device, including: the communication module is used for receiving a measurement reference signal from a terminal and forwarding the measurement reference signal to network side equipment, wherein the measurement reference signal sent by the terminal comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

In a twelfth aspect, there is provided a device for determining an uplink transmission parameter, applied to a terminal, including: the terminal comprises a receiving module, a receiving module and a processing module, wherein the receiving module is used for receiving resource indication information, the resource indication information is used for scheduling the terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals; a sending module, configured to send a measurement reference signal according to the resource indication information, where a wireless channel through which the measurement reference signal passes includes a first channel and a second channel, where the first channel is a channel from the terminal to a network side device, and the second channel is a cascade channel from the terminal to a wireless auxiliary device and from the wireless auxiliary device to the network side device; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

In a thirteenth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third or sixth aspect.

In a fourteenth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor and the communication interface are configured to implement the steps of the method according to the third or sixth aspect.

In a fifteenth aspect, there is provided a network side device comprising a processor and a memory storing programs or instructions executable on the processor, which when executed by the processor implement the steps of the method according to the first or fourth aspect.

In a sixteenth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor and the communication interface are configured to implement the steps of the method according to the first or fourth aspect.

In a seventeenth aspect, there is provided a wireless auxiliary device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the second or fifth aspect.

In an eighteenth aspect, a wireless auxiliary device is provided, comprising a processor and a communication interface, wherein the processor and the communication interface are configured to implement the steps of the method according to the second or fifth aspect.

In a nineteenth aspect, a system for determining a transmission parameter is provided, including: a terminal, a wireless auxiliary device and a network side device, the network side device being operable to perform the steps of the method as described in the first aspect, the wireless auxiliary device being operable to perform the steps of the method as described in the second aspect, the terminal being operable to perform the steps of the method as described in the third aspect; alternatively, the network side device may be configured to perform the steps of the method according to the fourth aspect, the wireless auxiliary device may be configured to perform the steps of the method according to the fifth aspect, and the terminal may be configured to perform the steps of the method according to the sixth aspect.

In a twentieth aspect, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of the method according to any of the first to sixth aspects.

In a twenty-first aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the steps of the method according to any of the first to sixth aspects.

In a twenty-second aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to carry out the steps of the method according to any one of the first to sixth aspects.

In the embodiment of the application, a network side device sends a measurement reference signal, wherein the measurement reference signal comprises a first signal and a second signal, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a channel from network side equipment to a terminal, and also comprises a cascade channel from the network side equipment to wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; the terminal obtains first feedback information based on the measurement reference signal and sends the first feedback information to the network side equipment; and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information. According to the embodiment of the application, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameters from the network side equipment to the wireless auxiliary equipment are determined accurately, and the performance of the communication system is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for determining downlink transmission parameters according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a method for determining downlink transmission parameters according to an embodiment of the present application;

fig. 4 is a schematic flowchart of a method for determining downlink transmission parameters according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a method for determining uplink transmission parameters according to an embodiment of the present application;

fig. 6 is a schematic flowchart of a method for determining uplink transmission parameters according to an embodiment of the present application;

fig. 7 is a schematic flowchart of a method for determining uplink transmission parameters according to an embodiment of the present application;

fig. 8 is a schematic flowchart of an application scenario of a method for determining a downlink transmission parameter according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a determining device for downlink transmission parameters according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a determining device for downlink transmission parameters according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a determining device for downlink transmission parameters according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a determining device for uplink transmission parameters according to an embodiment of the present application;

Fig. 13 is a schematic structural diagram of a determining device for uplink transmission parameters according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a determining device for uplink transmission parameters according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 16 is a schematic structural view of a terminal according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of a network-side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11, a network-side device 12, and a wireless auxiliary device. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited. Wireless auxiliary devices include, but are not limited to, RIS, network control relay devices (network controller repeater, NCR), and the like.

The method for determining the transmission parameters provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

As shown in fig. 2, the embodiment of the present application provides a method 200 for determining a downlink transmission parameter, which may be performed by a network side device, in other words, the method may be performed by software or hardware installed in the network side device, and the method includes the following steps.

S202: the network side equipment transmits a measurement reference signal, wherein the measurement reference signal comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal.

Alternatively, the measurement Reference Signal may be a synchronization Signal/physical broadcast channel Signal block/synchronization Signal block (Synchronization Signal and PBCH block, SSB), or a channel state information Reference Signal (Channel State Information-Reference Signal, CSI-RS), or the like.

S204: the network side equipment receives first feedback information, wherein the first feedback information is obtained by the terminal through channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal.

In this embodiment, the radio channel through which the measurement reference signal passes includes a first channel and a second channel, that is, the first signal and the second signal reach the terminal through both the first channel and the second channel.

In this embodiment, the terminal may estimate the downlink concatenated channel parameters according to the resource configuration/indication of the paired signals (i.e., the first signal and the second signal) sent by the network side device, and map the corresponding channel estimation parameters to the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or the medium access control unit (Media Access Control Control Element, MAC CE), and feed back the channel estimation parameters to the network side device.

In this embodiment, the network side device sends the paired signals, that is, the first signal and the second signal, and the terminal obtains the first feedback information based on the paired signals, which is favorable to eliminating the influence of the direct link (that is, the first channel) from the network side device to the terminal, so as to obtain the transmission beam from the network side device to the wireless auxiliary device.

The wireless auxiliary devices mentioned in the various embodiments of the present application may be intelligent supersurfaces (Reconfigurable Intelligent Surface, RIS), network control relays (Network Controller Repeater, NCR), etc.

S206: and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information.

Optionally, as an embodiment, the first feedback information includes at least one of: channel quality indication (Channel Quality Indicator, CQI); precoding matrix indicator (Pre-coding Matrix Indicator, PMI).

In other embodiments, the first feedback information includes at least one of: layer Indicator (LI); CQI; PMI, rank Indication (RI). Wherein, LI comprises CQI, PMI, channel state information reference signal resource indicator (CSI-RS Resource Indicator, CRI), RI, etc.; CQI includes PMI, RI, CRI, etc. PMI includes RI, CRI, etc., and RI may include CRI. Optionally, the terminal reports what parameters are indicated by the network side device.

Alternatively, the specific index (index) of the reported content, for example, CQI index, PMI index, RI index, etc., may be determined by the cascade channel parameter estimated by the terminal (base station-wireless auxiliary device-terminal) and the transmitted measurement reference signal.

Optionally, the network side device may obtain first feedback information fed back by the plurality of terminals, and the network side device determines downlink transmission parameters from the network side device to the wireless auxiliary device based on the plurality of first feedback information, where the downlink transmission parameters may be a precoding matrix, a codebook, a modulation and coding strategy (Modulation and Coding Scheme, MCS), a Rank (Rank), and the like.

According to the method for determining the downlink transmission parameters, the network side equipment sends measurement reference signals, wherein the measurement reference signals comprise first signals and second signals, and the first signals are associated with the second signals; the wireless channel through which the measurement reference signal passes comprises a channel from network side equipment to a terminal, and also comprises a cascade channel from the network side equipment to wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; the terminal obtains first feedback information based on the measurement reference signal and sends the first feedback information to the network side equipment; and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information. According to the embodiment of the application, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameters from the network side equipment to the wireless auxiliary equipment are determined accurately, and the performance of the communication system is improved.

Optionally, as an embodiment, the wireless auxiliary device forwards the first signal to the terminal using a first parameter; the wireless auxiliary device forwards the second signal to the terminal by using a second parameter; wherein the second parameter is obtained by processing at least one of the following parameters: deflection of the phase or amplitude adjustment.

In this embodiment, the wireless auxiliary device, when receiving or forwarding the measurement reference signal, parameters may be determined by: a preset parameter (i.e. a first parameter) is adopted on the first resource, for example, the phase of each unit is 0, or the working state is +1; the phase matrix on the second resource is deflected relative to the phase matrix on the first resource, e.g. the phase of each cell is pi, or the operating state is-1.

Alternatively, the wireless auxiliary device may determine the parameters when receiving or forwarding the measurement reference signal by: a preset parameter (i.e., a first parameter) is employed on the first resource, for example, the magnitude of each cell is 0, and the parameter employed on the second resource is set to the magnitude of each cell is 1.

In this embodiment, by setting the first parameter and the second parameter, the influence of the direct link from the network side device to the terminal may be completely eliminated by the first feedback information obtained by the terminal, such as the channel estimation difference value between the first signal and the second signal, or the sum of the channel estimates of the first signal and the second signal. It will be appreciated that the implementation of excluding the influence of the direct link of the network side device to the terminal is not limited to the above description.

Optionally, as an embodiment, the method further comprises at least one of:

1) The network side equipment sends first indication information, wherein the first indication information is used for configuring or indicating at least one of the following to the terminal: the measurement reference signal time-frequency location information, the type of the measurement reference signal, such as periodic, semi-continuous, and aperiodic.

In this embodiment, the first indication information may be radio resource control (Radio Resource Control, RRC) signaling, medium access control element (Media Access Control Control Element, MAC CE) signaling, or downlink control information (Downlink Control Information, DCI) signaling.

Optionally, the first resource and the second resource are indicated as one set; or the first resource and the second resource are indicated respectively, and the network side device is further configured to indicate an association relationship between the first resource and the second resource according to a resource Identifier (ID).

Optionally, the first indication information is specific to the terminal (UE-specific), or the first indication information is common indication information of the terminal (UE-common), for example, indicated to one terminal or to a group of terminals.

Optionally, the first indication information is further used to indicate the role of the measurement reference signal.

Optionally, the first indication information is further used for indicating the content of the first feedback information that needs to be reported by the terminal, for example, indicating the terminal to report the CQI and PMI.

2) The network side equipment sends second indication information, wherein the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary equipment: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device, for example, a phase of each unit is 0 when receiving a first signal, and a phase of each unit is 1 when receiving a second signal; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

The measurement reference signal time-frequency position information includes, for example: the time-frequency position of the first resource and the time-frequency position of the second resource.

The state control settings of the wireless auxiliary device include, for example: when the wireless auxiliary equipment is at the time domain position of the first resource, the phase of each unit is 0; or the working state is +1; or the amplitude of each cell is 0; the wireless auxiliary equipment is in the time domain position of the second resource, and the phase of each unit is pi; or the working state is-1; or the amplitude of each cell is 1.

The wireless auxiliary device status duration includes, for example: the wireless auxiliary device has a phase of 0 for each unit in the time domain length of the first resource; the wireless auxiliary device state switching time includes, for example: the wireless auxiliary device switches at the end position of the time domain of the first resource, and switches from 0 phase of each unit to 1 phase of each unit.

In this embodiment, the second indication information may be RRC signaling, MAC CE signaling, or DCI signaling.

Optionally, the first resource and the second resource are indicated as one set; or the first resource and the second resource are indicated respectively, and the network side device is further configured to indicate an association relationship between the first resource and the second resource according to a resource identifier ID.

The method for determining the downlink transmission parameters according to the embodiment of the present application is described in detail above in conjunction with fig. 2. A method for determining downlink transmission parameters according to another embodiment of the present application will be described in detail with reference to fig. 3 and 4. It will be appreciated that the description from the wireless auxiliary device side and the terminal side is the same as or corresponds to the description of the network side device in the method shown in fig. 2, and the related description is omitted as appropriate to avoid repetition.

Fig. 3 is a schematic flow chart of implementation of a method for determining downlink transmission parameters according to an embodiment of the present application, which may be applied to a wireless auxiliary device. As shown in fig. 3, the method 300 includes the following steps.

S302: the wireless auxiliary equipment receives a measurement reference signal from network side equipment and forwards the measurement reference signal to a terminal, wherein the measurement reference signal sent by the network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

According to the method for determining the downlink transmission parameters, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameters from the network side equipment to the wireless auxiliary equipment can be determined accurately, and the performance of the communication system is improved.

Optionally, as an embodiment, the method further includes: the wireless auxiliary device receives second indication information, wherein the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary device: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

Fig. 4 is a schematic implementation flow chart of a method for determining downlink transmission parameters in the embodiment of the present application, which may be applied to a terminal. As shown in fig. 4, the method 400 includes the following steps.

S402: the method comprises the steps that a terminal receives a plurality of measurement reference signals, wherein the measurement reference signals sent by network side equipment comprise a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal.

S404: and the terminal obtains first feedback information according to the measurement reference signal and sends the first feedback information, wherein the first feedback information is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

Optionally, as an embodiment, the method further includes: the terminal receives first indication information, wherein the first indication information is used for configuring or indicating at least one of the following to the terminal: and the time-frequency position information of the measurement reference signal is the type of the measurement reference signal.

Optionally, as an embodiment, the first resource and the second resource are indicated as one set; or the first resource and the second resource are indicated respectively, and the network side equipment indicates the association relation between the first resource and the second resource according to the resource identification ID.

Optionally, as an embodiment, the first indication information is specific to the terminal, or the first indication information is terminal public indication information.

Optionally, as an embodiment, the first feedback information includes at least one of: CQI; PMI.

As shown in fig. 5, an embodiment of the present application provides a method 500 for determining uplink transmission parameters, which may be performed by a network side device, in other words, the method may be performed by software or hardware installed in the network side device, and the method includes the following steps.

S502: the method comprises the steps that network side equipment sends resource indication information, the resource indication information is used for scheduling a terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals.

S504: the network side equipment receives the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment.

S506: and the network side equipment determines uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment according to the measurement reference signals.

Optionally, as an embodiment, the method further includes: the network side equipment obtains downlink channel estimation parameters according to the uplink channel estimation parameters; determining transmission parameters of the network side equipment according to the downlink channel estimation parameters; wherein the transmission parameters include at least one of: a precoding matrix; modulation and coding strategies (Modulation and Coding Scheme, MCS); coding rate.

In the embodiment of the present application, with the assistance of the wireless auxiliary device, the network side device determines uplink cascade channel parameters according to the measurement reference signal sent by the terminal, and determines downlink cascade channel parameters according to channel diversity. And the network side equipment determines the transmitted digital codebook or the digital precoding matrix according to the downlink cascade channel parameters.

According to the method for determining the uplink transmission parameters, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameters from the network side equipment to the wireless auxiliary equipment can be determined accurately, and the performance of the communication system is improved.

Optionally, as an embodiment, the wireless auxiliary device forwards the first signal to the network side device using a first parameter; the wireless auxiliary equipment forwards the second signal to the network side equipment by using a second parameter; wherein the second parameter is obtained by processing at least one of the following parameters: deflection of the phase or amplitude adjustment.

In this embodiment, by setting the first parameter and the second parameter, the uplink channel parameter obtained by the network device may completely exclude the influence of the direct link from the network device to the terminal. It will be appreciated that the implementation of excluding the influence of the direct link of the network side device to the terminal is not limited to the above description.

Optionally, as an embodiment, the resource indication information includes first indication information and/or second indication information; the first indication information is used for configuring or indicating at least one of the following to the terminal: the time-frequency position information of the measurement reference signal, and the type of the measurement reference signal; the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary device: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

In this embodiment, the first indication information and the second indication information may be RRC signaling, MAC CE signaling, or DCI signaling.

Optionally, as an embodiment, the first resource and the second resource are indicated as one set; or the first resource and the second resource are indicated respectively, and the network side equipment indicates the association relation between the first resource and the second resource through a resource ID.

The method for determining the uplink transmission parameters according to the embodiment of the present application is described in detail above in conjunction with fig. 5. A method for determining uplink transmission parameters according to another embodiment of the present application will be described in detail below with reference to fig. 6 and 7. It will be appreciated that the description from the wireless auxiliary device side and the terminal side is the same as or corresponds to the description of the network side device in the method shown in fig. 5, and the related description is omitted as appropriate to avoid repetition.

Fig. 6 is a schematic flow chart of an implementation of a method for determining uplink transmission parameters in the embodiment of the present application, which may be applied to a wireless auxiliary device. As shown in fig. 6, the method 600 includes the following steps.

S602: the wireless auxiliary equipment receives a measurement reference signal from a terminal and forwards the measurement reference signal to network side equipment, wherein the measurement reference signal transmitted by the terminal comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

Optionally, as an embodiment, the wireless auxiliary device forwards the first signal to the network side device using a first parameter; the wireless auxiliary equipment forwards the second signal to the network side equipment by using a second parameter; wherein the second parameter is obtained by processing at least one of the following parameters: deflection of phase, or amplitude adjustment.

Optionally, as an embodiment, the method further includes: the wireless auxiliary device receives second indication information, wherein the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary device: time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

Fig. 7 is a schematic flow chart of implementation of a method for determining uplink transmission parameters in the embodiment of the present application, which may be applied to a terminal. As shown in fig. 7, the method 700 includes the following steps.

S702: the method comprises the steps that a terminal receives resource indication information, the resource indication information is used for scheduling the terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals.

S704: the terminal sends a measurement reference signal according to the resource indication information, wherein a wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, the first channel is a channel from the terminal to network side equipment, and the second channel is a cascade channel from the terminal to wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

In order to describe the transmission parameter determining method provided in the embodiments of the present application in detail, the following description will be made with reference to several specific embodiments. The following embodiments will be described by taking an example in which the network-side device is a base station and the wireless auxiliary device is an RIS.

Before describing specific embodiments, the principles of operation of the RIS will be described first.

A signal model of the RIS-assisted wireless communication system is shown in fig. 8. The multipath channel from the base station to the terminal comprises a path which is directly transmitted to the terminal by the base station, a path which is transmitted to the terminal by the base station through a common scatterer, and a path which reaches the terminal by the base station through RIS equipment. The channel response corresponding to the first two types of paths is G; the channel response of the transmission path from the base station to the RIS is H ₁ The channel response of the RIS to terminal transmission path is H ₂ H of the concatenated channel of base station-RIS-terminal ₁ θH ₂ . In addition, each RIS device unit of the RIS device can be added with corresponding parameter adjustment theta while forwarding signals _n . Thus, taking downlink transmission as an example, the expression of the terminal received signal is

y(G+H ₁ θH ₂ )Px+w

Wherein G is N _rx *N _tx Matrix of (N) _rx For the number of terminal receiving antennas, N _tx Transmitting the number of antennas for the base station; p is N _tx Vector, which is the precoding vector sent by the base station; h ₁ Is N _rx *N _ris Channel matrix, N _ris The number of device units for the RIS device; h ₁ Is N _ris *N _tx Is a channel matrix of (a) a channel matrix of (b); θ is a diagonal matrix, diag { θ ₁ ,θ ₂ ,…θ _{N_ris} And the control parameters of each RIS device unit are in one-to-one correspondence.

Manipulation parameter θ of RIS device unit _n ＝α·e ^jβ . For a 1bit discrete phase controlled RIS unit, beta e {0, pi }, for a 2bit discrete phase controlled RIS unit,for a 1bit amplitude controlled RIS element, α ε {0,1}.

Since the RIS device unit has no radio frequency link, the RIS device has no capability of processing signals, and channel information of segmented channels of the base station-RIS and the RIS-terminal cannot be obtained. This allows the base station or terminal to perform a concatenated channel estimation to obtain the concatenated channel information of the base station-RIS-terminal. In order to perform the function of signal forwarding by the RIS device, the base station needs to determine the transmission parameters from the base station to the RIS, so as to maximize the signal strength of the base station received by the RIS device.

According to the signal adjustment characteristics of RIS equipment, a scheme for channel information separation estimation can be realized. Assuming that the base station to RIS channel and RIS to terminal channel remain quasi-static during a round of channel estimation, i.e., G, H ₁ ，H ₂ Remains unchanged during the channel coherence time. When the state of the RIS unit array is increased by the same state offset, the RIS beam direction and the beam gain are unchanged. For example, the phase control state of the phase control type RIS is θ, and becomes θ×e after increasing the phase shift amount pi ^jπ ＝-θ。

For a phase control RIS, at time 1, the phase control state of the RIS is θ, and the end-to-end signal transmission can be expressed as

y＝(G+H ₁ θH ₂ )Px+w

After the phase control state of RIS is increased by the phase offset pi at time 2, the end-to-end signaling can be expressed as

y＝(G-H ₁ θH ₂ )Px+w

The receiving end can determine G and H through channel estimation results at two moments ₁ θH ₂ . After determining the channel information of the two channel components, the appropriate transmit-side precoding and receive-side beams may be selected to maximize the base station-RIS-terminal channel H ₁ θH ₂ (maximizing the forward beam gain with RIS); or to maximize the beam gain of the base station-terminal channel G (minimize the impact of the RIS cascade channel).

Similarly, for amplitude controlled RIS, at time 2, the RIS may be switched to an off state and the end-to-end signaling may be represented as

y＝GPx+w

Thus, G and H are determined from the channel estimation results at two times ₁ θH ₂ 。

Example 1

This embodiment mainly describes an RIS-assisted downlink concatenated channel estimation, which comprises the following steps.

Step 1: after the RIS is accessed to the base station, the RIS reports the hardware type of the RIS equipment and the quantization precision of the RIS control parameters to the base station.

The hardware types of the RIS device include: a phase control type RIS, or an amplitude control type RIS.

The quantization precision of the RIS control parameter comprises: 1bit control, 2bit control, or other types.

Step 2: and the base station selects the terminal to perform RIS cascade channel estimation.

The terminal may be a terminal in the vicinity of the RIS device selected by the base station based on the RIS device location.

Optionally, the RIS-based transmission link is provided according to a terminal data service. Before the RIS provides service, the base station schedules the terminal for RIS concatenated channel estimation to determine the base station to RIS beam.

Step 3: in the configuration stage of RIS cascade channel estimation, a base station configures parameters of state switching for RIS equipment, wherein the parameters comprise a time period corresponding to each state of RIS and a RIS state offset sequence.

Optionally, the base station may also configure an initial state of the RIS cell array for the RIS device. (the RIS device has access to the base station and thus ensures frame synchronization with the base station).

The RIS state deviation sequence comprises the deviation of the RIS working state relative to the initial state in each time period.

The initial state of the RIS cell array may represent the initial state of each RIS cell in the RIS cell array, may be randomly generated by the RIS device, or may be configured for display by the base station. The RIS state offset sequence comprises a plurality of values, e.g., [0,1,0,1], with 0 representing an offset of 0 and 1 representing an offset of phase offset pi according to the interface protocol definitions of the base station and RIS; or 0 indicates the RIS is off and 1 indicates the RIS is on.

And the time period corresponding to each state of the RIS is sequentially in one-to-one correspondence with each element in the RIS state offset sequence.

The time period corresponds to several OFDM symbols or slots or subframes or radio frames. And the RIS performs state switching according to the time period.

Step 4: the base station configures the CSI-RS measurement parameters for the terminal.

The paired measurement parameters comprise time-frequency domain configuration information of the CSI-RS and code division configuration information of the CSI-RS.

Optionally, the method also comprises a sending period of the CSI-RS, a binding relation of the CSI-RS and a calculation mode of cascading channel information.

The CSI-RS time domain positions respectively correspond to a plurality of time periods of the RIS, and optionally, the terminal establishes a binding relationship with the CSI-RSs with the same port number or determines the binding relationship according to the display indication of the base station. The binding relation of the CSI-RS is that the CSI-RS performs channel estimation on different time periods and then performs joint processing to obtain RIS cascade channel information.

The cascade channel information is calculated in a manner corresponding to the RIS state offset sequence and the meaning of the element in the sequence (i.e. phase offset or on/off switching is performed).

Step 5: the terminal receives the reference signal (time-sharing, different time arrives at the terminal) sent by the base station, performs channel estimation, and estimates the whole wireless channel.

Step 6: and the terminal determines reporting information parameters according to the channel estimation indication signaling of the base station.

The reported measurement information at least comprises one of the following:

base station-terminal direct channel information (RSRP/SINR/RSRQ, PMI, CSI).

Base station-RIS-terminal concatenated channel information (RSRP/SINR/RSRQ, PMI, CSI).

Correlation matrix of base station-terminal direct connection channel and base station-RIS-terminal cascade channel.

The channel used (base station-terminal direct channel or base station-RIS-terminal cascade channel) is recommended.

Step 7: the base station can determine the current wireless channel quality according to the channel parameters fed back by the terminal, and determine the codebook/digital precoding/digital beam forming matrix matched with the channel quality.

Example two

This embodiment mainly describes RIS-assisted uplink concatenated channel estimation, and includes the following steps.

Step 2: and the base station schedules the terminal to perform RIS cascade channel estimation.

Alternatively, the initial state of the RIS cell array may also be set. (the RIS device has access to the base station and thus ensures frame synchronization with the base station).

Step 4: the base station schedules the terminal to transmit a measurement reference signal (SRS).

The measurement parameters comprise time-frequency domain configuration information of SRS and code division configuration information of SRS.

Optionally, the method further comprises a sending period of the SRS, a binding relation of the SRS and a calculation mode of the cascading channel information.

The SRS time domain locations correspond to a plurality of time periods of the RIS, respectively.

Step 5: and the base station receives the reference signal sent by the terminal and estimates the whole wireless channel.

Step 6: and the base station determines the uplink channel state information according to the estimated channel parameters. The uplink channel state information includes at least one of the following:

the terminal-base station directly connects the channel information.

The terminal-RIS-base station concatenates the channel information.

Correlation matrix of terminal-base station direct connection channel and terminal-RIS-base station cascade channel.

Step 7: the base station determines the downlink channel state information and the corresponding digital information (codebook, digital precoding matrix) according to the channel diversity.

Example III

An active (active) type of RIS (each RIS unit has the ability to process and transmit signals), at which point the RIS panel can be viewed as a massive antenna array. The downlink channel estimation of this embodiment includes the following steps.

Step 1: the base station transmits reference signals (CSI-RS) according to RRC/MAC CE/operation and maintenance management (Operation Administration and Maintenance, OAM) configuration, configuration of RRC to CSI-RS resources (including frequency domain start position, port number, time domain start position, density (Density), CSI-RS bandwidth number, etc.).

Step 2: the active RIS estimates the channel between the Base Station (BS) -RIS according to the received pilot signal, and feeds back the channel estimation result to the base station.

Step 3: the active RIS transmits a pilot signal to the terminal according to the RRC/MAC CE/OAM configuration information transmitted through the base station.

Step 4: and after receiving the pilot signal, the terminal estimates a wireless channel between the device and the RIS, and feeds back the result of channel estimation to the RIS or the base station.

Step 5: and the base station determines the adopted digital beam forming information (codebook/digital precoding matrix) according to the channel feedback result.

Example IV

A Hybrid RIS is characterized in that only a part of the RIS units have the ability to process and transmit signals, the remaining RIS units are passive and only reflect signals, which embodiment comprises the following steps.

Step 1: the base station and the terminal respectively send pilot signals (SRS) to the RIS according to the RRC/MAC CE/OAM configuration information.

Step 2: the RIS utilizes active units on the RIS panel to estimate the partial channels between the BS-RIS and the RIS-UE.

Step 3: the RIS feeds back the estimated partial channel information to the base station.

Step 4: the base station can estimate the complete RIS-assisted concatenated channel using some channel estimation algorithm (DL/CS/DRL, etc.).

According to the transmission parameter determining method provided by the embodiment of the application, the execution body can be a transmission parameter determining device. In the embodiment of the present application, a method for determining a transmission parameter by using a determining device for a transmission parameter is taken as an example, and the determining device for a transmission parameter provided in the embodiment of the present application is described.

Fig. 9 is a schematic structural diagram of a downlink transmission parameter determining apparatus according to an embodiment of the present application, where the apparatus may correspond to a network side device in other embodiments. As shown in fig. 9, the apparatus 900 includes the following modules.

A transmitting module 902, configured to transmit a measurement reference signal, where the measurement reference signal transmitted by the network side device includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal.

A receiving module 904, configured to receive first feedback information, where the first feedback information is obtained by a terminal performing channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal.

A determining module 906, configured to determine transmission parameters from the network side device to the wireless auxiliary device according to the first feedback information.

According to the determining device for the downlink transmission parameters, which is provided by the embodiment of the application, network side equipment sends a measurement reference signal, wherein the measurement reference signal comprises a first signal and a second signal, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a channel from network side equipment to a terminal, and also comprises a cascade channel from the network side equipment to wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal; the terminal obtains first feedback information based on the measurement reference signal and sends the first feedback information to the network side equipment; and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information. According to the embodiment of the application, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameters from the network side equipment to the wireless auxiliary equipment are determined accurately, and the performance of the communication system is improved.

Optionally, as an embodiment, the method further comprises at least one of:

1) The network side equipment sends first indication information, wherein the first indication information is used for configuring or indicating at least one of the following to the terminal: and the time-frequency position information of the measurement reference signal is the type of the measurement reference signal.

2) The network side equipment sends second indication information, wherein the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary equipment: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

Optionally, as an embodiment, the first feedback information includes at least one of: channel quality indication (ChannelQuality Indicator, CQI); precoding matrix indicator (Pre-coding Matrix Indicator, PMI).

The apparatus 900 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 900 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 10 is a schematic structural diagram of a downlink transmission parameter determining apparatus according to an embodiment of the present application, where the apparatus may correspond to a wireless auxiliary device in other embodiments. As shown in fig. 10, the apparatus 1000 includes the following modules.

A communication module 1002, configured to receive a measurement reference signal from a network side device and forward the measurement reference signal to a terminal, where the measurement reference signal sent by the network side device includes a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

According to the downlink transmission parameter determining device, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameter from the network side equipment to the wireless auxiliary equipment is determined accurately, and the performance of a communication system is improved.

The apparatus 1000 according to the embodiment of the present application may refer to the flow of the method 300 corresponding to the embodiment of the present application, and each unit/module in the apparatus 1000 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 300, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 11 is a schematic structural diagram of a determining device for downlink transmission parameters according to an embodiment of the present application, where the device may correspond to a terminal in other embodiments. As shown in fig. 11, the apparatus 1100 includes the following modules.

A receiving module 1102, configured to receive a measurement reference signal, where the measurement reference signal sent by a network side device includes a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal.

A sending module 1104, configured to obtain first feedback information according to the measurement reference signal and send the first feedback information, where the first feedback information is used to determine transmission parameters from the network side device to the wireless auxiliary device.

The apparatus 1100 according to the embodiment of the present application may refer to the flow of the method 400 corresponding to the embodiment of the present application, and each unit/module in the apparatus 1100 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 400, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 12 is a schematic structural diagram of an uplink transmission parameter determining apparatus according to an embodiment of the present application, where the apparatus may correspond to a network side device in other embodiments. As shown in fig. 12, the apparatus 1200 includes the following modules.

A transmitting module 1202, configured to transmit resource indication information, where the resource indication information is used to schedule a terminal to transmit a measurement reference signal, where the measurement reference signal transmitted by the terminal includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal.

A receiving module 1204, configured to receive the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment.

A determining module 1206, configured to determine an uplink channel parameter of the terminal from the wireless auxiliary device to the network side device according to the measurement reference signal.

According to the uplink transmission parameter determining device, the influence of the direct link from the network side equipment to the terminal is eliminated by sending the associated paired signals (namely the first signal and the second signal), so that the transmission parameter from the network side equipment to the wireless auxiliary equipment is determined accurately, and the performance of a communication system is improved.

Optionally, as an embodiment, the method further includes: the network side equipment obtains downlink channel estimation parameters according to the uplink channel estimation parameters; determining transmission parameters of the network side equipment according to the downlink channel estimation parameters; wherein the transmission parameters include at least one of: precoding matrices (Precoding Matrix Indicator, PMI); modulation and coding strategies (Modulation and Coding Scheme, MCS); coding rate.

The apparatus 1200 according to the embodiment of the present application may refer to the flow of the method 500 corresponding to the embodiment of the present application, and each unit/module in the apparatus 1200 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 500, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 13 is a schematic structural diagram of an uplink transmission parameter determining apparatus according to an embodiment of the present application, where the apparatus may correspond to a wireless auxiliary device in other embodiments. As shown in fig. 13, the apparatus 1300 includes the following modules.

A communication module 1302, configured to receive a measurement reference signal from a terminal and forward the measurement reference signal to a network side device, where the measurement reference signal sent by the terminal includes a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

The apparatus 1300 according to the embodiment of the present application may refer to the flow of the method 600 corresponding to the embodiment of the present application, and each unit/module in the apparatus 1300 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 600, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

Fig. 14 is a schematic structural diagram of a determining device for downlink transmission parameters according to an embodiment of the present application, where the device may correspond to a terminal in other embodiments. As shown in fig. 14, the apparatus 1400 includes the following modules.

A receiving module 1402, configured to receive resource indication information, where the resource indication information is used to schedule the terminal to send measurement reference signals, where the measurement reference signals sent by the terminal include a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal.

A sending module 1404, configured to send a measurement reference signal according to the resource indication information, where a wireless channel through which the measurement reference signal passes includes a first channel and a second channel, where the first channel is a channel from the terminal to a network side device, and the second channel is a cascade channel from the terminal to a wireless auxiliary device and from the wireless auxiliary device to the network side device; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

The apparatus 1400 according to the embodiment of the present application may refer to the flow of the method 700 corresponding to the embodiment of the present application, and each unit/module in the apparatus 1400 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 700, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The transmission parameter determining device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The transmission parameter determining device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to fig. 7, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, as shown in fig. 15, the embodiment of the present application further provides a communication device 1500, including a processor 1501 and a memory 1502, where the memory 1502 stores a program or an instruction that can be executed on the processor 1501, for example, when the communication device 1500 is a terminal, the program or the instruction is executed by the processor 1501 to implement the steps of the above-mentioned method embodiment of determining transmission parameters, and the same technical effects can be achieved. When the communication device 1500 is a wireless auxiliary device, the program or instructions, when executed by the processor 1501, implement the steps of the above-described method embodiment for determining transmission parameters, and achieve the same technical effects. When the communication device 1500 is a network side device, the program or the instruction, when executed by the processor 1501, implements the steps of the above-described method embodiment for determining transmission parameters, and the same technical effects can be achieved, so that repetition is avoided, and further description is omitted here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor and the communication interface are used for realizing the steps of the flow shown in fig. 4 or 7. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 16 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1600 includes, but is not limited to: at least some of the components of the radio frequency unit 1601, the network module 1602, the audio output unit 1603, the input unit 1604, the sensor 1605, the display unit 1606, the user input unit 1607, the interface unit 1608, the memory 1609, the processor 1610, and the like.

Those skilled in the art will appreciate that terminal 1600 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to processor 1610 by a power management system that performs functions such as managing charge, discharge, and power consumption. The terminal structure shown in fig. 16 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1604 may include a graphics processing unit (GraphicsProcessing Unit, GPU) 16041 and a microphone 16042, with the graphics processor 16041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1607 includes at least one of a touch panel 16071 and other input devices 16072. The touch panel 16071, also referred to as a touch screen. The touch panel 16071 may include two parts, a touch detection device and a touch controller. Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 1601 may transmit the downlink data to the processor 1610 for processing; in addition, the radio frequency unit 1601 may send uplink data to the network-side device. In general, radio frequency unit 1601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1609 may be used to store software programs or instructions and various data. The memory 1609 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, memory 1609 may include volatile memory or nonvolatile memory, or memory 1609 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 1610 may include one or more processing units; optionally, processor 1610 integrates an application processor that primarily handles operations related to operating systems, user interfaces, applications, etc., and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1610.

The radio frequency unit 1601 and the processor 1610 may be configured to implement the steps of the flow shown in fig. 4 or fig. 7.

The terminal 1600 provided in this embodiment of the present application may further implement each process of the above embodiment of the method for determining a transmission parameter, and may achieve the same technical effects, so that repetition is avoided and no further description is given here.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor and the communication interface are used for realizing the steps of the flow shown in fig. 2 or 5. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 17, the network-side device 1700 includes: an antenna 171, a radio frequency device 172, a baseband device 173, a processor 174, and a memory 175. The antenna 171 is connected to a radio frequency device 172. In the uplink direction, the radio frequency device 172 receives information via the antenna 171, and transmits the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes information to be transmitted, and transmits the processed information to the radio frequency device 172, and the radio frequency device 172 processes the received information and transmits the processed information through the antenna 171.

The method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 173, and the baseband apparatus 173 includes a baseband processor.

The baseband apparatus 173 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 17, where one chip, for example, a baseband processor, is connected to the memory 175 through a bus interface, so as to call a program in the memory 175 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 176, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1700 of the embodiment of the present invention further includes: instructions or programs stored in the memory 175 and executable on the processor 174, the processor 174 invokes the instructions or programs in the memory 175 to perform the methods performed by the modules shown in fig. 9 or fig. 12, and achieve the same technical effects, and are not repeated here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the above embodiment of the method for determining a transmission parameter, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is configured to run a program or an instruction, implement each process of the above embodiment of the method for determining the transmission parameter, and achieve the same technical effect, so that repetition is avoided, and no further description is provided here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned embodiments of the transmission parameter determining method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a system for determining the transmission parameters, which comprises the following steps: the terminal can be used for executing the steps of the transmission parameter determining method, the wireless auxiliary device can be used for executing the steps of the transmission parameter determining method, and the network side device can be used for executing the steps of the transmission parameter determining method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method for determining downlink transmission parameters, comprising:

the method comprises the steps that network side equipment sends measurement reference signals, wherein the measurement reference signals comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals;

the network side equipment receives first feedback information, wherein the first feedback information is obtained by a terminal through channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal;

and the network side equipment determines transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information.

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the wireless auxiliary device forwards the first signal to the terminal by using a first parameter;

the wireless auxiliary device forwards the second signal to the terminal by using a second parameter;

Wherein the second parameter is obtained by processing at least one of the following parameters: deflection of the phase or amplitude adjustment.

3. The method of claim 1, further comprising at least one of:

the network side equipment sends first indication information, wherein the first indication information is used for configuring or indicating at least one of the following to the terminal: the time-frequency position information of the measurement reference signal, and the type of the measurement reference signal;

the network side equipment sends second indication information, wherein the second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary equipment: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

4. The method of claim 3, wherein the step of,

the first resource and the second resource are indicated as one set; or the first resource and the second resource are indicated respectively, and the network side equipment indicates the association relation between the first resource and the second resource according to a resource identification ID; and/or

The first indication information is specific to the terminal, or the first indication information is terminal public indication information.

5. The method of claim 1, wherein the first feedback information comprises at least one of:

channel quality indication, CQI; the precoding matrix indicates a PMI.

6. A method for determining downlink transmission parameters, comprising:

the wireless auxiliary equipment receives a measurement reference signal from network side equipment and forwards the measurement reference signal to a terminal, wherein the measurement reference signal sent by the network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

7. The method of claim 6, wherein the step of providing the first layer comprises,

8. A method for determining downlink transmission parameters, comprising:

the method comprises the steps that a terminal receives a measurement reference signal, wherein the measurement reference signal sent by network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal;

and the terminal obtains first feedback information according to the measurement reference signal and sends the first feedback information, wherein the first feedback information is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

9. The method of claim 8, wherein the step of determining the position of the first electrode is performed,

10. The method of claim 8, wherein the method further comprises:

the terminal receives first indication information, wherein the first indication information is used for configuring or indicating at least one of the following to the terminal: and the time-frequency position information of the measurement reference signal is the type of the measurement reference signal.

11. The method of claim 10, wherein the step of determining the position of the first electrode is performed,

12. The method of claim 8, wherein the first feedback information comprises at least one of: CQI; PMI.

13. The method for determining the uplink transmission parameters is characterized by comprising the following steps:

the method comprises the steps that network side equipment sends resource indication information, wherein the resource indication information is used for scheduling a terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals;

The network side equipment receives the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment;

and the network side equipment determines uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment according to the measurement reference signals.

14. The method of claim 13, wherein the step of determining the position of the probe is performed,

the wireless auxiliary equipment forwards the first signal to the network side equipment by using a first parameter;

the wireless auxiliary equipment forwards the second signal to the network side equipment by using a second parameter;

15. The method according to claim 13, wherein the resource indication information comprises a first indication information and/or a second indication information; wherein,

the first indication information is used for configuring or indicating at least one of the following to the terminal: the time-frequency position information of the measurement reference signal, and the type of the measurement reference signal;

The second indication information is used for configuring or indicating at least one of the following to the wireless auxiliary device: the time-frequency position information of the measurement reference signal; a state control setting of the wireless auxiliary device; and information indicating the wireless auxiliary equipment to determine the state duration or the switching time of the wireless auxiliary equipment according to the time-frequency resource position of the measurement reference signal.

16. The method of claim 13, wherein the step of determining the position of the probe is performed,

the first resource and the second resource are indicated as one set; or,

the first resource and the second resource are indicated respectively, and the network side equipment indicates the association relation between the first resource and the second resource through a resource ID.

17. The method according to any one of claims 13 to 16, further comprising:

the network side equipment obtains downlink channel estimation parameters according to the uplink channel estimation parameters;

determining transmission parameters of the network side equipment according to the downlink channel estimation parameters; wherein the transmission parameters include at least one of: a precoding matrix; modulation and coding scheme, MCS; coding rate.

18. The method for determining the uplink transmission parameters is characterized by comprising the following steps:

The wireless auxiliary equipment receives a measurement reference signal from a terminal and forwards the measurement reference signal to network side equipment, wherein the measurement reference signal transmitted by the terminal comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

19. The method of claim 18, wherein the step of providing the first information comprises,

wherein the second parameter is obtained by processing at least one of the following parameters: deflection of phase, or amplitude adjustment.

20. The method for determining the uplink transmission parameters is characterized by comprising the following steps:

a terminal receives resource indication information, wherein the resource indication information is used for scheduling the terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals;

The terminal sends a measurement reference signal according to the resource indication information, wherein a wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, the first channel is a channel from the terminal to network side equipment, and the second channel is a cascade channel from the terminal to wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

21. The method of claim 20, wherein the step of determining the position of the probe is performed,

22. The method according to claim 20, wherein the resource indication information comprises a first indication information and/or a second indication information; wherein,

23. The method of claim 20, wherein the step of determining the position of the probe is performed,

the first resource and the second resource are indicated as one set; or,

24. A downlink transmission parameter determining apparatus, applied to a network side device, comprising:

a transmitting module, configured to transmit a measurement reference signal, where the measurement reference signal transmitted by the network side device includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal;

the receiving module is used for receiving first feedback information, wherein the first feedback information is obtained by a terminal through channel estimation based on the first signal and the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal;

And the determining module is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment according to the first feedback information.

25. A downlink transmission parameter determining apparatus, applied to a wireless auxiliary device, comprising:

the communication module is used for receiving a measurement reference signal from the network side equipment and forwarding the measurement reference signal to the terminal, wherein the measurement reference signal sent by the network side equipment comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

26. A downlink transmission parameter determining apparatus, applied to a terminal, comprising:

the receiving module is used for receiving a measurement reference signal, wherein the measurement reference signal transmitted by the network side equipment comprises a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the network side equipment to the terminal, and the second channel is a cascade channel from the network side equipment to the wireless auxiliary equipment and from the wireless auxiliary equipment to the terminal;

And the sending module is used for obtaining first feedback information according to the measurement reference signal and sending the first feedback information, wherein the first feedback information is used for determining transmission parameters from the network side equipment to the wireless auxiliary equipment.

27. The device for determining the uplink transmission parameters is applied to network side equipment and is characterized by comprising the following components:

a transmitting module, configured to transmit resource indication information, where the resource indication information is used to schedule a terminal to transmit a measurement reference signal, where the measurement reference signal transmitted by the terminal includes a first signal transmitted on a first resource and a second signal transmitted on a second resource, and the first signal is associated with the second signal;

a receiving module, configured to receive the measurement reference signal; the wireless channel through which the measurement reference signal passes comprises a first channel and a second channel, wherein the first channel is a channel from the terminal to the network side equipment, and the second channel is a cascade channel from the terminal to the wireless auxiliary equipment and from the wireless auxiliary equipment to the network side equipment;

and the determining module is used for determining uplink channel parameters of the terminal to the network side equipment through the wireless auxiliary equipment according to the measurement reference signals.

28. An apparatus for determining uplink transmission parameters, applied to a wireless auxiliary device, comprising:

the communication module is used for receiving a measurement reference signal from a terminal and forwarding the measurement reference signal to network side equipment, wherein the measurement reference signal sent by the terminal comprises a first signal sent on a first resource and a second signal sent on a second resource, and the first signal is associated with the second signal; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

29. A device for determining uplink transmission parameters, applied to a terminal, comprising:

the terminal comprises a receiving module, a receiving module and a processing module, wherein the receiving module is used for receiving resource indication information, the resource indication information is used for scheduling the terminal to send measurement reference signals, the measurement reference signals sent by the terminal comprise first signals sent on first resources and second signals sent on second resources, and the first signals are associated with the second signals;

a sending module, configured to send a measurement reference signal according to the resource indication information, where a wireless channel through which the measurement reference signal passes includes a first channel and a second channel, where the first channel is a channel from the terminal to a network side device, and the second channel is a cascade channel from the terminal to a wireless auxiliary device and from the wireless auxiliary device to the network side device; the measurement reference signal is used for determining uplink channel parameters from the terminal to the network side equipment through the wireless auxiliary equipment.

30. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method of any of claims 8 to 12, 20 to 23.

31. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of any one of claims 1 to 5, 13 to 17.

32. A wireless accessory device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of claim 6,7, 18 or 19.

33. A readable storage medium, characterized in that it stores thereon a program or instructions, which when executed by a processor, implement the steps of the method according to any of claims 1 to 23.