WO2021097625A1 - Procédé de détermination de canal et appareil de communication - Google Patents

Procédé de détermination de canal et appareil de communication Download PDF

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Publication number
WO2021097625A1
WO2021097625A1 PCT/CN2019/119245 CN2019119245W WO2021097625A1 WO 2021097625 A1 WO2021097625 A1 WO 2021097625A1 CN 2019119245 W CN2019119245 W CN 2019119245W WO 2021097625 A1 WO2021097625 A1 WO 2021097625A1
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WIPO (PCT)
Prior art keywords
reference signal
signal port
port
multiplexing information
terminal devices
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PCT/CN2019/119245
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English (en)
Chinese (zh)
Inventor
范利
葛士斌
尚鹏
种稚萌
毕晓艳
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华为技术有限公司
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Priority to PCT/CN2019/119245 priority Critical patent/WO2021097625A1/fr
Publication of WO2021097625A1 publication Critical patent/WO2021097625A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of communication, and more specifically, to a method and communication device for channel determination.
  • Massive MIMO massive multiple-input multiple output
  • MIMO massive multiple-input multiple output
  • the terminal device can measure the CSI of the downlink channel according to the reference signal sent by the network device, such as the channel state information reference signal (channel state information reference signal, CSI-RS). If different terminal devices use different CSI-RS resources, the CSI-RS resources required by the entire network device will increase as the number of terminal devices increases, so different terminal devices can perform CSI-RS multiplexing.
  • the reference signal sent by the network device such as the channel state information reference signal (channel state information reference signal, CSI-RS).
  • the present application provides a method and communication device for channel determination, which can enable terminal equipment to obtain more accurate channel information.
  • a method for channel determination is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or chip system or circuit configured in the terminal device, which is not limited in this application.
  • the method may include: receiving a reference signal; determining channel information according to the reference signal and the multiplexing information corresponding to each of the T reference signal ports; wherein each reference signal port corresponds to multiple terminal devices, and each reference signal port corresponds to The terminal devices of are not all the same, the multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, and T is an integer greater than 1.
  • the multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, that is, for any reference signal port among the T reference signal ports, the reference signal port corresponds to multiplexing
  • the information can be used to reflect that the reference signal port corresponds to multiple terminal devices, or in other words, it can be determined that the reference signal port corresponds to multiple terminal devices according to the multiplexing information.
  • the multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, and may be an implicit indication.
  • the multiplexing information corresponding to each reference signal port is used to reflect the number N of multiple terminal devices corresponding to the reference signal port. N is an integer greater than 1, and the terminal device can know the reference signal port according to the value of N. Corresponding to multiple terminal devices.
  • the terminal devices corresponding to each reference signal port are not all the same, which can be understood as including all situations except the following: the terminal devices corresponding to each reference signal port are all the same.
  • the terminal devices corresponding to each reference signal port are not all the same, and may include: among the T reference signal ports, the terminal devices corresponding to any two reference signal ports include at least one different terminal device, or in other words, T reference signals Among the ports, among the terminal devices corresponding to any two reference signal ports, some terminal devices are different or all terminal devices are different.
  • the terminal devices corresponding to each reference signal port are not all the same, and may include: among the T reference signal ports, the terminal devices corresponding to at least two reference signal ports include at least one different terminal device, or in other words, T Among the reference signal ports, among the terminal devices corresponding to at least two reference signal ports, some terminal devices are different or all terminal devices are different.
  • the multiplexing information corresponding to each of the T reference signal ports can be understood as: the multiplexing information corresponding to each reference signal port; or, it can also be understood as the port group or (code division multiplexing) where the reference signal port is located. , CDM) multiplexing information corresponding to the group.
  • the terminal device can determine the multiplexing information corresponding to the reference signal port in the port group or the CDM group according to the multiplexing information corresponding to the port group or the CDM group.
  • the multiplexing information of the reference signal port is also considered. That is to say, when determining the channel information to be reported, the terminal device considers the multiplexing information of each reference signal port, so as to solve the problem that the multiplexing degree of the reference signal port may be different, which may cause the power difference between the reference signal ports. , You can also obtain more accurate channel information and improve communication performance.
  • the determining channel information according to the reference signal and the multiplexing information corresponding to each of the T reference signal ports includes: estimating the channel according to the reference signal ; Adjust the estimated channel through the multiplexing information corresponding to each of the T reference signal ports, and determine the adjusted channel information.
  • the terminal device after initially estimating the channel based on the reference signal, the terminal device adjusts the estimated channel according to the multiplexing information corresponding to the reference signal port, so as to obtain more accurate channel information and improve the performance of channel estimation.
  • the adjusting the estimated channel through the multiplexing information corresponding to each of the T reference signal ports, and determining the adjusted channel information includes: The multiplexing information and Pc corresponding to the T reference signal ports are adjusted, the estimated channel is adjusted, and the adjusted channel information is determined, where Pc represents the power of the resource carrying the data and the power of the resource carrying the reference signal The ratio of power.
  • the method further includes: receiving multiplexing information corresponding to each of the T reference signal ports.
  • the terminal device can receive the multiplexing information corresponding to each reference signal port. It can be understood that the network device can indicate the multiplexing information corresponding to each reference signal port to the terminal device. Therefore, the terminal device can quickly determine the multiplexing information corresponding to each reference signal port.
  • the T reference signal ports include a first reference signal port and a second reference signal port, and the first reference signal port and the second reference signal port The number of terminal devices corresponding to the ports is the same; the method further includes: receiving multiplexing information corresponding to the reference signal code division multiplexing CDM group where the first reference signal port and the second reference signal port are located, wherein, according to The multiplexing information corresponding to the reference signal CDM group can determine the multiplexing information corresponding to the first reference signal and the second reference signal; or, receiving the first reference signal port and the second reference signal port The multiplexing information corresponding to the reference signal port group where it is located, wherein the multiplexing information corresponding to the first reference signal and the second reference signal can be determined according to the multiplexing information corresponding to the reference signal port group.
  • first reference signal port and the second reference signal port are any two reference signal ports among the T reference signal ports, and their naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application. .
  • the multiplexing information received by the terminal device may be multiplexing information corresponding to the CDM group, or multiplexing information corresponding to the reference signal port group. That is to say, when the number of terminal devices corresponding to multiple reference signal ports is the same, the network device can indicate the multiplexing information in the form of the group, that is, indicate the CDM group or port group corresponding to the multiple reference signal ports.
  • the multiplexing information can also save indication signaling overhead.
  • the T reference signal ports include a third reference signal port
  • the multiplexing information corresponding to the third reference signal port includes any one of the following: The number of terminal devices corresponding to the third reference signal port, the identifiers of multiple terminal devices corresponding to the third reference signal port, the power adjustment value of each terminal device corresponding to the third reference signal port, the third reference signal port.
  • the third reference signal port is any one of the T reference signal ports, and its naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application.
  • the multiplexing information of the reference signal port may include the degree of multiplexing (such as the number of terminal devices corresponding to the reference signal port or the port group where the reference signal port is located), and may also include information related to power adjustment (such as Power adjustment value or power adjustment range).
  • the terminal device can adjust the estimated channel based on the multiplexing information of the reference signal port, and then determine the channel information to be reported.
  • the T reference signal ports include a fourth reference signal port, and the number of terminal devices corresponding to the fourth reference signal port is the same as that of the fourth reference signal port.
  • the power adjustment value of each terminal device corresponding to the reference signal port has a corresponding relationship; or, the number of terminal devices corresponding to the fourth reference signal port is the same as the power adjustment value of each terminal device corresponding to the fourth reference signal port.
  • the power adjustment range has a corresponding relationship; or, the number of terminal devices corresponding to the reference signal port group where the fourth reference signal port is located, and each reference signal in the reference signal port group where the fourth reference signal port is located
  • the power adjustment value of each terminal device corresponding to the port has a corresponding relationship; or, the number of terminal devices corresponding to the CDM group where the fourth reference signal port is located, and the number of terminal devices in the CDM group where the fourth reference signal port is located
  • the power adjustment value of each terminal device corresponding to each reference signal port has a corresponding relationship.
  • the fourth reference signal port is any one of the T reference signal ports, and its naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application.
  • the protocol or the network device may predefine the correspondence between the multiplexing degree and the power adjustment value.
  • the terminal device may determine the corresponding power adjustment value based on the corresponding relationship obtained or saved in advance and the multiplexing degree, and then may make corresponding adjustments according to the determined power adjustment value.
  • the degree of multiplexing (such as the number of terminal devices corresponding to the reference signal port or the port group where the reference signal port is located) and the information related to power adjustment (such as power adjustment value or power adjustment range) are between Can have a corresponding relationship.
  • the reference signal is a channel state information reference signal.
  • a method for channel determination is provided.
  • the method may be executed by a network device, or may also be executed by a chip or chip system or circuit configured in the network device, which is not limited in this application.
  • the method may include: determining the multiplexing information corresponding to each of the T reference signal ports, where each reference signal port corresponds to multiple terminal devices, and the terminal devices corresponding to each reference signal port are not all the same, and each reference signal port corresponds to The multiplexing information is used to reflect that the reference signal port corresponds to multiple terminal devices, and T is an integer greater than 1, and the multiplexing information corresponding to each of the T reference signal ports is sent.
  • the network device can indicate to the terminal device the multiplexing information corresponding to each reference signal port, so that When the terminal equipment estimates the channel and feeds back the channel information, the multiplexing information of the reference signal port is also taken into consideration. In this way, more accurate channel information can be obtained and communication performance can be improved.
  • the method further includes: sending the reference signal.
  • the sending the multiplexing information corresponding to each of the T reference signal ports includes: sending each of the T reference signal ports Corresponding multiplexing information.
  • the network device can indicate the multiplexing information corresponding to each reference signal port to the terminal device.
  • the T reference signal ports include a first reference signal port and a second reference signal port, and the first reference signal port and the second reference signal port The number of terminal devices corresponding to the ports is the same; the sending the multiplexing information corresponding to each of the T reference signal ports includes: sending the reference signal code division where the first reference signal port and the second reference signal port are located Multiplexing the multiplexing information corresponding to the CDM group, wherein the multiplexing information corresponding to the first reference signal and the second reference signal can be determined according to the multiplexing information corresponding to the reference signal CDM group; or, sending the The multiplexing information corresponding to the reference signal port group where the first reference signal port and the second reference signal port are located, wherein the multiplexing information corresponding to the reference signal port group can determine the first reference signal and the Multiplexing information corresponding to the second reference signal.
  • first reference signal port and the second reference signal port are any two reference signal ports among the T reference signal ports, and their naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application. .
  • the network device can indicate the multiplexing information in the form of the group, that is, indicate the CDM group or port group in which the multiple reference signal ports are located.
  • Corresponding multiplexing information can also save indication signaling overhead.
  • the T reference signal ports include a third reference signal port
  • the multiplexing information corresponding to the third reference signal port includes any one of the following: The number of terminal devices corresponding to the third reference signal port, the identifiers of multiple terminal devices corresponding to the third reference signal port, the power adjustment value of each terminal device corresponding to the third reference signal port, the third reference signal port.
  • the third reference signal port is any one of the T reference signal ports, and its naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application.
  • the multiplexing information of the reference signal port may include the degree of multiplexing (such as the number of terminal devices corresponding to the reference signal port or the port group where the reference signal port is located), and may also include information related to power adjustment (such as Power adjustment value or power adjustment range).
  • the T reference signal ports include a fourth reference signal port, and the number of terminal devices corresponding to the fourth reference signal port is the same as that of the fourth reference signal port.
  • the power adjustment value of each terminal device corresponding to the reference signal port has a corresponding relationship; or, the number of terminal devices corresponding to the fourth reference signal port is the same as the power adjustment value of each terminal device corresponding to the fourth reference signal port.
  • the power adjustment range has a corresponding relationship; or, the number of terminal devices corresponding to the reference signal port group where the fourth reference signal port is located, and each reference signal in the reference signal port group where the fourth reference signal port is located
  • the power adjustment value of each terminal device corresponding to the port has a corresponding relationship; or, the number of terminal devices corresponding to the CDM group where the fourth reference signal port is located, and the number of terminal devices in the CDM group where the fourth reference signal port is located
  • the power adjustment value of each terminal device corresponding to each reference signal port has a corresponding relationship.
  • the fourth reference signal port is any one of the T reference signal ports, and its naming is only for distinguishing, and does not limit the protection scope of the embodiments of the present application.
  • the reference signal is a channel state information reference signal.
  • a communication device configured to execute the communication method provided in the foregoing first aspect.
  • the communication device may include a module for executing the communication method provided in the first aspect.
  • a communication device is provided, and the communication device is configured to execute the communication method provided in the second aspect.
  • the communication device may include a module for executing the communication method provided in the second aspect.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions in the memory to implement the communication method in any one of the possible implementation manners of the first aspect in the first aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, the processor is coupled with the communication interface, and the communication interface is used to input and/or output information.
  • the information includes at least one of instructions and data.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, which may be an input/output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system, etc.
  • the processor may also be embodied as a processing circuit or a logic circuit.
  • the communication device is a chip or a chip system configured in a terminal device.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including a processor.
  • the processor is coupled with the memory, and can be used to execute instructions in the memory to implement the above-mentioned second aspect and the communication method in any one of the possible implementation manners of the second aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, the processor is coupled with the communication interface, and the communication interface is used to input and/or output information.
  • the information includes at least one of instructions and data.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system.
  • the processor may also be embodied as a processing circuit or a logic circuit.
  • the communication device is a chip or a chip system configured in a network device.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, the communication device enables the communication device to implement the first aspect and any possible implementation manner of the first aspect In the method.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device When the computer program is executed by a communication device, the communication device enables the communication device to implement the second aspect and any possible implementation manner of the second aspect In the method.
  • a computer program product containing instructions is provided, when the instructions are executed by a computer, the communication device realizes the method provided in the first aspect.
  • a computer program product containing instructions which when executed by a computer causes a communication device to implement the method provided in the second aspect.
  • a communication system including the aforementioned network equipment and terminal equipment.
  • FIG. 1 and Fig. 2 are schematic diagrams of communication systems applicable to embodiments of the present application;
  • Fig. 3 is a schematic diagram of a method for channel determination according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a method for channel determination applicable to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a method for channel determination applicable to another embodiment of the present application.
  • FIG. 6 is a schematic diagram of a method for channel determination applicable to another embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 8 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • UMTS time division duplex
  • 5G mobile communication system fifth generation mobile communication system
  • NR new radio
  • the 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth-generation mobile communication system.
  • the communication system may also be a PLMN network, an Internet of Things (IoT) network or other networks.
  • IoT Internet of Things
  • the IoT network may include, for example, the Internet of Vehicles.
  • the communication system applied in the embodiments of the present application may include one or more network devices and one or more terminal devices.
  • a network device can transmit data or control signaling to one or more terminal devices.
  • multiple network devices can also transmit data or control signaling for one terminal device at the same time.
  • the terminal equipment in the embodiments of this application may also be referred to as: user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal, user unit, user station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • access terminal user unit, user station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a device that provides voice/data connectivity to the user, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and so on.
  • a handheld device with a wireless connection function for example, a vehicle-mounted device, and so on.
  • some examples of terminals are: mobile phones (mobile phones), tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, and augmented reality.
  • augmented reality, AR equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, and smart grids
  • Wireless terminals wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocols , SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, vehicle Devices, wearable devices, terminal devices in a 5G network, or terminal devices in a public land mobile network (PLMN) that will evolve in the future, etc., which are not limited in the embodiment of the present application.
  • PLMN public land mobile network
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device can also be a terminal device in the IoT system.
  • IoT is an important part of the development of information technology in the future. Its main technical feature is to connect objects to the network through communication technology to realize man-machine Interconnection, an intelligent network of interconnection of things.
  • the IoT technology can achieve massive connections, deep coverage, and power saving of the terminal through, for example, narrowband (narrowband) NB technology.
  • the terminal equipment may also include sensors such as smart printers, train detectors, gas stations, etc.
  • the main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network equipment, and sending electromagnetic waves. , To transmit uplink data to network equipment.
  • the network equipment in the embodiments of the present application may be equipment for communicating with terminal equipment.
  • the network equipment may be an evolved NodeB (eNB or eNodeB) in an LTE system, or a cloud wireless access network.
  • the wireless controller in the (cloud radio access network, CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and a network device in the future 5G network or a network in the future evolved PLMN network Devices, etc., are not limited in the embodiments of the present application.
  • the network device in the embodiment of the present application may be a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal to the wireless network.
  • RAN nodes are: next-generation base station gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), home base station, baseband unit (BBU), or Access point (AP) in the WiFi system, etc.
  • a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node, or a control plane (control plane, CP) CU node (such as CU-CP node), user plane (UP) CU node (such as CU-UP node), and RAN equipment of DU node.
  • CU centralized unit
  • DU distributed unit
  • RAN device including a CU node and a DU node, or a control plane (control plane, CP) CU node (such as CU-CP node), user plane (UP) CU node (such as CU-UP node), and RAN equipment of DU node.
  • control plane, CP control plane
  • CP control plane
  • CP control plane
  • UP user plane
  • CU-UP node such as CU-UP node
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided in accordance with the embodiments of the application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1, and the wireless communication system 100 may also include at least one terminal device, such as the terminal device 121 shown in FIG. To terminal equipment 123. Both network equipment and terminal equipment can be configured with multiple antennas, and the network equipment and terminal equipment can communicate using multiple antenna technology.
  • the network device when a network device communicates with a terminal device, the network device may manage one or more cells, and there may be an integer number of terminal devices in a cell.
  • the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system.
  • the cell is denoted as cell #1.
  • the network device 111 may be a network device in the cell #1, or in other words, the network device 111 may serve a terminal device (for example, the terminal device 121) in the cell #1.
  • a cell can be understood as an area covered by a wireless signal of a network device.
  • FIG. 2 is another schematic diagram of a wireless communication system 200 applicable to an embodiment of the present application.
  • the wireless communication system 200 includes a network device 211, a terminal device 221 and a terminal device 222.
  • the network device 211 may simultaneously transmit multiple analog beams through multiple radio frequency channels to transmit data to multiple terminal devices.
  • the network device 211 transmits beam 1, beam 2, and beam 3 at the same time, where beam 1 is used to transmit data for the terminal device 221, and beam 2 and beam 3 are used to transmit data for the terminal device 222.
  • the beam 1 may be referred to as the service beam of the terminal device 221, and the beam 2 and the beam 3 may be referred to as the service beam of the terminal device 222.
  • the terminal device 221 and the terminal device 222 may belong to the same cell.
  • FIG. 1 and FIG. 2 are only exemplary illustrations, and the present application is not limited thereto.
  • the embodiments of the present application can be applied to any communication system, as long as there are at least two devices in the communication system, one device needs to send instruction information to indicate the transmission direction; the other device receives the instruction information and can The indication information determines the transmission direction within a certain period of time.
  • the embodiment of the beam in the NR protocol can be a spatial domain filter, or a spatial filter or a spatial parameter.
  • the beam used to transmit a signal can be called a transmission beam (Tx beam), it can be called a spatial domain transmission filter or a spatial transmission parameter; the beam used to receive a signal can be called To receive the beam (reception beam, Rx beam), it can be called a spatial domain receive filter or a spatial receive parameter (spatial RX parameter).
  • the transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna
  • the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • the beam may be a wide beam, or a narrow beam, or other types of beams.
  • the beam forming technology may be beamforming technology or other technology.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology, etc.
  • Beams generally correspond to resources. For example, when performing beam measurements, network equipment can use different beams to send signals on different resources, terminal equipment uses different beams to receive signals on different resources, and terminal equipment can feed back to the network equipment on different resources The quality of the measured signal, so that the network device knows the quality of the corresponding beam.
  • the beam information is also indicated by its corresponding resource. For example, the network device instructs the terminal device physical downlink shared channel (PDSCH) beam information through the transmission configuration indicator (TCI) resource in the downlink control information (DCI).
  • PDSCH physical downlink shared channel
  • TCI transmission configuration indicator
  • multiple beams with the same or similar communication characteristics may be regarded as one beam.
  • One beam corresponds to one or more antenna ports and is used to transmit data channels, control channels, and sounding signals.
  • One or more antenna ports corresponding to a beam can also be regarded as an antenna port set.
  • each beam of the network device corresponds to a resource, so the resource identifier (or index) can be used to uniquely identify the beam corresponding to the resource.
  • Precoding technology When the channel status is known, the network equipment can process the signal to be sent with the help of a precoding matrix that matches the channel status, so that the precoded signal to be sent is adapted to the channel, thereby This reduces the complexity for the receiving device to eliminate the influence between channels. Therefore, through the precoding processing of the signal to be transmitted, the quality of the received signal (for example, the signal to interference plus noise ratio (SINR), etc.) can be improved. Therefore, the use of precoding technology can realize the transmission on the same time-frequency resource between the sending device and multiple receiving devices, that is, realizing multiple user multiple input multiple output (MU-MIMO).
  • SINR signal to interference plus noise ratio
  • the sending device may also perform precoding in other ways. For example, when channel information (such as but not limited to a channel matrix) cannot be obtained, precoding is performed using a preset precoding matrix or a weighting processing method. For the sake of brevity, the specific content will not be repeated here.
  • Reference signal reference signal, RS: It can also be called a pilot (pilot), reference sequence, etc.
  • the reference signal may be a reference signal used for channel measurement.
  • the reference signal may be a channel state information reference signal (CSI-RS) used for downlink channel measurement, or a sounding reference signal (SRS) used for uplink channel measurement.
  • CSI-RS channel state information reference signal
  • SRS sounding reference signal
  • Reference signals can be divided into non-precoding reference signals and precoding reference signals according to whether precoding is performed. Taking CSI-RS as an example, CSI-RS can be divided into non-precoding CSI-RS and precoding CSI-RS according to whether precoding is performed. RS. Reference signals can be divided into cell-specific reference signals and UE-specific reference signals according to the transmission granularity. Taking CSI-RS as an example, CSI-RS can be divided into cell-specific CSI-RS and UE-specific according to the transmission granularity. CSI-RS.
  • the precoding reference signal may be a reference signal obtained by precoding the reference signal.
  • the precoding may specifically include beamforming and/or phase rotation. Wherein, beamforming may be realized by precoding the downlink reference signal based on one or more angle vectors, and phase rotation may be realized by precoding the downlink reference signal by one or more delay vectors, for example.
  • Reference signal resource can be used to configure the transmission attributes of the reference signal, for example, the position of the time-frequency resource, the port mapping relationship, the power factor, and the scrambling code. For details, please refer to the prior art.
  • the transmitting end device may send the reference signal based on the reference signal resource, and the receiving end device may receive the reference signal based on the reference signal resource.
  • a reference signal resource may include one or more resource blocks (resource block, RB).
  • the reference signal resource may be, for example, a CSI-RS resource.
  • antenna port it can be understood as a transmitting antenna recognized by the receiving end, or a transmitting antenna that can be distinguished in space.
  • One antenna port can be configured for each virtual antenna, and each virtual antenna can be a weighted combination of multiple physical antennas.
  • antenna ports can be divided into reference signal ports and data ports.
  • the reference signal port includes, but is not limited to, a demodulation reference signal (demodulation reference signal, DMRS) port, a CSI-RS port, and so on.
  • DMRS demodulation reference signal
  • CSI-RS CSI-RS
  • the port may refer to a reference signal port, such as a CSI-RS port (CSI-RS port).
  • CSI-RS port CSI-RS port
  • the time-frequency resources occupied by the CSI-RS of different CSI-RS ports may be different, or the orthogonal cover codes may be different.
  • the terminal device may receive the CSI-RS based on the port indicated by the network device, and estimate the channel based on the received CSI-RS.
  • the port may include a transmitting port (or called a transmitting port) and a receiving port.
  • the transmitting port can be understood as a virtual antenna recognized by the receiving device.
  • all ports indicate sending ports.
  • the parameters related to the port can be CSI-RS port, CSI-RS port group (CSI-RS port group) or CSI-RS code division multiplexing (CDM) group (CSI-RS CDM group) .
  • CSI-RS port group CSI-RS port group
  • CDM group CSI-RS code division multiplexing
  • the CSI-RS port group and the CSI-RS code division multiplexing group can be understood to be obtained by grouping CSI-RS ports in different ways.
  • Ports, CSI-RS ports, CSI-RS port groups, and CSI-RS code division multiplexing groups can be distinguished by index, can also be distinguished by identification, or can also be distinguished by other information that can be used to distinguish different ports or different groups The distinction is not limited in this application.
  • the port and the reference signal port are sometimes used interchangeably. It should be understood that, in the embodiment of the present application, the port means the reference signal port. In addition, in the following embodiments, either the port or the reference signal port can be replaced with a CSI-RS port.
  • the accuracy of the channel state information (CSI) that the terminal device feeds back to the network device is very important to the performance of the system.
  • the terminal device can measure the CSI of the downlink channel according to the reference signal sent by the network device, such as CSI-RS.
  • the CSI-RS is UE-specific CSI-RS
  • the CSI-RS resources required by the entire network device will increase linearly as the number of users increases.
  • the total CSI-RS resources in the network device are limited, CSI-RS multiplexing is required.
  • the power of each CSI-RS port is inconsistent, which requires the network device to indicate the power of each CSI-RS port, so as to obtain more accurate Channel estimation.
  • This application proposes a method that can improve the accuracy of the channel information obtained by the terminal device.
  • FIG. 3 is a schematic interaction diagram of a method 300 for channel determination according to an embodiment of the present application.
  • the method 300 may include the following steps.
  • the terminal device receives the reference signal.
  • the network device sends a reference signal to the terminal device, and the terminal device receives the reference signal.
  • the reference signal may be a reference signal used for channel measurement or channel estimation, such as CSI-RS.
  • the terminal device determines channel information according to the reference signal and the multiplexing information corresponding to each of the T reference signal ports.
  • each reference signal port corresponds to multiple terminal devices, and the terminal devices corresponding to each reference signal port are not all the same.
  • the multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, and T is An integer greater than 1.
  • the reference signal port may be, for example, a CSI-RS port.
  • the reference signal port corresponds to the terminal device, or in other words, the terminal device corresponds to the reference signal port, which is used to indicate that the terminal device can receive the reference signal sent through the reference signal port (which can be understood as the sending port). That is, the network device indicates the reference signal port to the terminal device, and the terminal device receives the reference signal based on the reference signal port indicated by the network device.
  • the reference signal port may correspond to one terminal device, or may correspond to multiple terminal devices.
  • the reference signal port corresponds to multiple terminal devices, which means that the multiple terminal devices multiplex the reference signal port, or in other words, the multiple terminal devices can all receive the reference signal sent through the reference signal port. That is, the network device indicates the reference signal port to multiple terminal devices, and the multiple terminal devices receive the reference signal based on the reference signal port indicated by the network device.
  • the reference signal port corresponds to one terminal device, which means that one terminal device receives the reference signal sent through the reference signal port. That is, the network device indicates a reference signal port to a terminal device, and the terminal device receives the reference signal based on the reference signal port indicated by the network device.
  • the terminal device can perform channel estimation and feed back CSI according to the existing method; or the terminal device can also use the method of the embodiment of the present application, which will be specifically described below in combination with multiplexing information.
  • the optional port set may include: port 0, port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9, port 10, port 11, Port 12, port 13, port 14, port 15.
  • the optional port set may include: port 0, port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9, port 10, port 11, Port 12, port 13, port 14, port 15.
  • Taking 4 terminal devices as an example they are respectively denoted as: UE1, UE2, UE3, and UE4.
  • the 4 terminal devices correspond to 4 reference signal ports, and the reference signal ports are multiplexed.
  • UE1 corresponds to 4 reference signal ports, namely: port 1, port 4, port 9, and port 13, all of which are multiplexed.
  • port 1, UE1, UE2, UE3, and UE4 are multiplexed.
  • port 4 UE1 and UE2 are multiplexed.
  • port 9, UE1 and UE4 are multiplexed.
  • port 13, UE1, UE3, and UE4 are multiplexed.
  • the embodiment of the present application does not limit the multiple terminal devices that multiplex the reference signal port.
  • there are beams with relatively high isolation between multiple terminal devices that is, the beam isolation used to serve multiple terminal devices is relatively high, and the multiple terminal devices may multiplex reference signal ports.
  • the number of terminal devices multiplexed on different reference signal ports may be the same or different, which is not limited.
  • the multiplexing information corresponding to different reference signal ports may be the same.
  • the T reference signal ports include a first reference signal port and a second reference signal port, and the number of terminal devices corresponding to the first reference signal port and the second reference signal port is the same.
  • the multiplexing information corresponding to the first reference signal port and the second reference signal port may be the same.
  • the first reference signal port is port 4
  • the second reference signal port is port 9
  • the number of terminal devices corresponding to port 4 and port 9 are both 2.
  • the multiplexing information including the number of terminal devices multiplexing the reference signal port as an example, the multiplexing information of port 4 and port 9 may be the same, and both include: the number of terminal devices multiplexing the reference signal port is two.
  • the first reference signal port and the second reference signal port are any two reference signal ports among the T reference signal ports, as long as the number of terminal devices corresponding to the two reference signal ports is the same. It should be understood that the first reference signal port and the second reference signal port are only named for distinction, and do not limit the protection scope of the embodiments of the present application. It should also be understood that the embodiment of the present application does not limit the number of terminal devices corresponding to only two reference signal ports to be the same.
  • the T reference signal ports may also include multiple reference signal ports, and the number of terminal devices corresponding to the multiple reference signal ports is the same.
  • the multiplexing information corresponding to the reference signal port can be used to indicate that when multiple terminal devices multiplex the reference signal port, the multiple terminal devices can be based on the multiplexing
  • the information determines the channel information.
  • the multiple terminal devices may perform power adjustment on the estimated channel based on the multiplexing information, so as to obtain the adjusted channel information.
  • the multiplexing information corresponding to the reference signal port is used for the terminal device corresponding to the reference signal port to determine channel information, or for the terminal device corresponding to the reference signal port to adjust the power of the estimated channel, or
  • the multiplexing information corresponding to the reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices.
  • the following is succinct, expressed by the multiplexing information of the reference signal port.
  • the multiplexing information of the third reference signal port may include, but is not limited to, one or more of the following: the number N of terminal devices corresponding to the third reference signal port, and the identification of the terminal device corresponding to the third reference signal port , The power adjustment value of each terminal device corresponding to the third reference signal port, the power adjustment range of each terminal device corresponding to the third reference signal port, the power adjustment value of the reference signal port group where the third reference signal port is located, the first The power adjustment range of the reference signal port group where the three reference signal ports are located.
  • N is an integer greater than or equal to 1.
  • the third reference signal port is any reference signal port among the T reference signal ports.
  • the multiplexing information of any one of the T reference signal ports may include any one or more of the foregoing information.
  • the terminal device may also determine the number of terminal devices according to the number of identifiers.
  • the number of terminal devices corresponding to the reference signal port may also be referred to as the multiplexing degree of the reference signal port.
  • the following is concise, expressed by the multiplexing degree of the reference signal port. As shown in FIG. 4, the multiplexing degree of port 1 is 4, the multiplexing degree of port 4 is 2, the multiplexing degree of port 9 is 2, and the multiplexing degree of port 13 is 3.
  • the multiplexing information of the reference signal port is described in detail below.
  • the multiplexing degree of the reference signal port may be different, which may cause a power difference between the reference signal ports. Therefore, when determining the channel information to be reported, the terminal device considers the multiplexing information of each reference signal port, so that more accurate channel information can be obtained.
  • step 320 may include step 3201 and step 3202.
  • the terminal equipment estimates the channel based on the reference signal
  • the terminal device adjusts the estimated channel through the multiplexing information of each of the T reference signal ports.
  • the terminal device can perform channel measurement based on the reference signal and obtain estimated channel information. Then, the terminal device adjusts or processes the estimated channel by referring to the multiplexing information of the signal port, so as to obtain the adjusted channel information, that is, the channel information to be reported. The terminal device obtains the estimated channel based on the reference signal, and adjusts the estimated channel through the multiplexing information of the reference signal port. It can be understood that the terminal device adjusts the power of the estimated channel through the multiplexing information of the reference signal port. In this way, more accurate channel information can be obtained.
  • the estimated channel mentioned in the embodiment of the present application is used to indicate a channel for a terminal device to perform channel measurement estimation according to a reference signal.
  • Determining channel information is used to indicate that the terminal device determines the channel information to be reported, or in other words, the terminal device reports the CSI based on the determined channel information. Determining the channel information, for example, may indicate that the channel information is determined after the estimated channel is adjusted through the multiplexing information of the reference signal port.
  • each reference signal port can correspond to one piece of multiplexed information. That is, after the terminal device performs channel estimation on each reference signal port, it can adjust the estimated channel through the multiplexing information of the reference signal port, so as to obtain adjusted channel information, that is, channel information to be reported.
  • the port group or CDM group where the multiple reference signal ports are located corresponds to one piece of multiplexing information.
  • the reference signal ports in the port group or the CDM group correspond to the same multiplexing information, or in other words, the reference signal ports in the port group or the CDM group perform the same power adjustment on the estimated channel.
  • the method 300 may further include: the terminal device reports the CSI to the network device.
  • the terminal device can perform channel measurement based on the reference signal and obtain estimated channel information. Then, the terminal device adjusts the estimated channel by referring to the multiplexing information of the signal port, thereby obtaining the adjusted channel information, and reporting the CSI based on the adjusted channel information.
  • the following describes in detail the multiplexing information of the reference signal port and how the terminal device determines the channel information according to the multiplexing information of the reference signal and the reference signal port.
  • the terminal device may obtain the multiplexing information of the reference signal port through any of the following methods.
  • Manner 1 The network device indicates the multiplexing information corresponding to each reference signal port to the terminal device.
  • UE1 corresponds to 4 reference signal ports, namely: port 1, port 4, port 9, and port 13, and these 4 reference signal ports are all multiplexed.
  • port 1 UE1, UE2, UE3, and UE4 are multiplexed.
  • port 4 UE1 and UE2 are multiplexed.
  • port 9 UE1 and UE4 are multiplexed.
  • port 13 UE1, UE3, and UE4 are multiplexed.
  • the network device can indicate the multiplexing information of the respective corresponding reference signal ports to the terminal devices (such as UE1, UE2, UE3, UE4).
  • the network device indicates the multiplexing degree of the reference signal port to UE1.
  • the network device may indicate to UE1 that the reuse degree of port 1 is 4, the reuse degree of port 4 is 2, the reuse degree of port 9 is 2, and the reuse degree of port 13 is 3.
  • the network device can indicate to UE1: the number of terminal devices corresponding to port 1 is 4, the number of terminal devices corresponding to port 4 is 2, the number of terminal devices corresponding to port 9 is 2, and the number of terminal devices corresponding to port 13 The number is 3.
  • Example 1 When a network device configures reference signal port multiplexing, it notifies the terminal device of the multiplexing information of the reference signal port.
  • UE1 corresponds to port 1, port 4, port 9, and port 13.
  • the network device may indicate to the terminal device: the multiplexing information of port 1, the multiplexing information of port 4, the multiplexing information of port 9, and the multiplexing information of port 13.
  • Example 2 When the network device indicates the multiplexing information to the terminal device, it is indicated in order according to the size of the index of the reference signal port.
  • UE2 corresponds to port 1, port 4, port 7, and port 11.
  • the network device can indicate to the terminal device: multiplexing information 1, multiplexing information 2, multiplexing information 3, and multiplexing information 4.
  • multiplexed information 1 is multiplexed information of port 1
  • multiplexed information 2 is multiplexed information of port 4
  • multiplexed information 3 is multiplexed information of port 7
  • multiplexed information 4 is multiplexed information of port 11.
  • multiplexed information 1 is the multiplexed information of port 11
  • multiplexed information 2 is the multiplexed information of port 7
  • multiplexed information 3 is the multiplexed information of port 4
  • multiplexed information 4 is the multiplexed information of port 1.
  • Example 3 When the network device indicates the multiplexing information to the terminal device, it is instructed according to the agreement.
  • the optional reference signal ports that can be multiplexed include: port 2, port 4, port 6, port 8, ....
  • the 2 multiplexed information Use the information to correspond to port 2 and port 4.
  • the optional reference signal ports that can be multiplexed include: port 1, port 3, port 5, port 7, ....
  • the 3 multiplexing information Use the information to correspond to: port 1, port 3, and port 5.
  • the number of terminal devices corresponding to the reference signal port is 2 m , where m is an integer greater than or equal to 1.
  • the network device indicates the multiplexing information of the reference signal port to the terminal device, it may only indicate m. For example, if the network device indicates to the terminal device that the multiplexing information of the reference signal port is 2, the terminal device can determine that the multiplexing degree of the reference signal port is 2 2 , that is, 4.
  • the network device indicates the multiplexing information of each reference signal port group to the terminal device.
  • the number of terminal devices multiplexed on each reference signal port may be the same, that is, the multiplexing degree of different reference signal ports may be the same.
  • the multiplexing degrees of port 4, port 7, and port 9 are all 2
  • the multiplexing degrees of port 11 and port 13 are all 3.
  • the multiplexing degree indication of each reference signal port can be changed from each port indicating the multiplexing degree to the CDM group as the unit or the port group as the unit. .
  • signaling overhead can be saved.
  • the multiplexing degree of the first reference signal port and the second reference signal port in the T reference signal ports may be the same.
  • the network device can indicate the multiplexing information of the port group to the terminal device.
  • the port group includes the first reference signal port and the second reference signal port.
  • the terminal device can determine the first reference signal port according to the multiplexing information of the port group. And the multiplexed information of the second reference signal port.
  • the network device can indicate the multiplexing information of the CDM group to the terminal device.
  • the CDM group includes the first reference signal port and the second reference signal port.
  • the terminal device can determine the first reference signal port according to the multiplexing information of the CDM group. And the multiplexed information of the second reference signal port.
  • the network device may indicate the multiplexing information of the CDM group to the terminal device, and the multiplexing degree of all reference signal ports in the CDM group is the same.
  • the terminal equipment performs the same power adjustment on all reference signal ports in the CDM group.
  • the terminal equipment adjusts the power according to the multiplexing information of the CDM group.
  • the multiplexing information of the CDM group can be that of all reference signal ports in the CDM group. Reuse information.
  • CDM supports 2 n reference signal ports to be multiplexed together, and n is an integer greater than 1 or equal to 1. Therefore, if multiplexing information is indicated according to the CDM group, the number of reference signal ports in the CDM group is 2 n .
  • the network device may indicate the multiplexing information of the port group to the terminal device, and the multiplexing degree of all reference signal ports in the port group is the same. That is, the terminal device performs the same power adjustment on all reference signal ports in the port group. For example, for all reference signal ports in the port group, the terminal equipment adjusts the power according to the multiplexing information of the port group. It can be understood that the multiplexing information of the port group may be that of all the reference signal ports in the port group. Reuse information.
  • the first two reference signal ports can be multiplexed together through CDM, which is recorded as CDM_1, which includes two reference signal ports; the latter two reference signal ports are multiplexed together through CDM, and recorded as CDM_2 ,
  • the CDM_2 includes 2 reference signal ports.
  • the network device can indicate the multiplexing information of CDM_1 and the multiplexing information of CDM_2 to the terminal device. For all reference signal ports in CDM_1, the terminal device performs power adjustment according to the multiplexing information of CDM_1; for all reference signal ports in CDM_2, The terminal equipment performs power adjustment according to the multiplexing information of CDM_2.
  • the network device can indicate to the terminal device that the multiplexing degree of CDM_1 is 2, that is, the multiplexing degree of the two reference signal ports in CDM_1 is 2.
  • the network device may also indicate to the terminal device that the multiplexing degree of CDM_1 is 4, that is, the multiplexing degree of the two reference signal ports in CDM_1 is 2 respectively.
  • the multiplexing degree of the terminal equipment on the 4 reference signal ports is 2, 2, 4, and 3 respectively.
  • the first two reference signal ports can be multiplexed together in a 2-CDM manner, denoted as CDM_3; the latter two reference signal ports are respectively indicated with the degree of multiplexing.
  • Example 2 the implementation manners in Example 1 to Example 3 in Manner 1 may also be adopted.
  • the network device may indicate the multiplexing information 1 and the multiplexing information 2 to the terminal device.
  • multiplexing information 1 may correspond to CDM_1
  • multiplexing information 2 may correspond to CDM_2
  • multiplexing information 1 may correspond to CDM_2
  • multiplexing information 2 may correspond to CDM_1.
  • multiple reference signal ports have the same multiplexing degree, and the multiplexing information that the network device can indicate to the terminal device can be used for the multiple reference signal ports.
  • the manners of the CDM group or the port group listed above are only exemplary descriptions, and the embodiments of the present application are not limited thereto.
  • the multiplexing degree is taken as an example.
  • the multiplexing degree of the CDM group or port group can be understood as the multiplexing degree of each reference signal port in the CDM group or port group.
  • the multiplexing degree of the CDM group or port group can be understood as the sum of the multiplexing degrees of all reference signal ports in the CDM group or port group.
  • take power adjustment as an example.
  • the power adjustment value of the CDM group or port group can be understood as the power adjustment value of each reference signal port in the CDM group or port group.
  • the power adjustment value of the CDM group or port group can be understood as the sum of the power adjustment values of all reference signal ports in the CDM group or port group. That is, the terminal device can determine the multiplexing information of each reference signal port in the CDM group or port group according to the multiplexing information of the CDM group or port group.
  • the network device may not need to indicate the multiplexing information of the reference signal port to the terminal device.
  • the terminal device determines that the reference signal port is multiplexed, it can default to the multiplexing degree of the reference signal port according to an agreement.
  • the network device can indicate the reference signal port multiplexing to the terminal device. For example, in the signaling of the reference signal port of the terminal device by the network device, a field is added, for example, a 1-bit field is added, and whether the reference signal port is multiplexed is determined by the field.
  • the multiplexing degree is N.
  • the multiplexing degree is N.
  • the terminal device determines the multiplexing of the reference signal port, it may default to the multiplexing degree of the reference signal port as N.
  • the maximum multiplexing degree is N max .
  • the maximum multiplexing degree is N max .
  • the terminal device determines the multiplexing of the reference signal port, it may default to the multiplexing degree of the reference signal port as N max or any integer less than N max.
  • Method 3 lists the cases where N or N max is agreed in advance.
  • the power adjustment value can also be pre-appointed, and after the terminal device determines the reference port reuse, it can directly adjust the estimated channel according to the power adjustment value.
  • the multiplexing information can be indicated by adding an indication field (for example, in the form of a bitmap) in the existing signaling. For example, through one or more of the following signaling: radio resource control (radio resource control, RRC), media access control (media access control, MAC), downlink control information (downlink control information, DCI) and other signaling , Increase the indication field.
  • RRC radio resource control
  • MAC media access control
  • DCI downlink control information
  • a separate signaling can also be added to indicate the multiplexing information.
  • the network device indicates the multiplexing information, and any manner that enables the terminal device to obtain the multiplexing information indicated by the network device falls within the protection scope of the embodiments of the present application.
  • the foregoing describes the possible ways to obtain the multiplexing information of the reference signal port.
  • the following describes the form of the multiplexing information of the reference signal port and how the terminal device determines the channel information according to the multiplexing information of the reference signal and the reference signal port.
  • Case 1 The multiplexing information of the reference signal port includes the multiplexing degree N of the reference signal port.
  • the multiplexing information of the reference signal port includes the number of terminal devices corresponding to the reference signal port, or in other words, the number of terminal devices multiplexing the reference signal port.
  • the network device may notify the terminal device of N through the aforementioned method 1 or method 2.
  • the terminal device may adjust the channel estimated by the terminal device based on the reference signal through N and Pc.
  • Pc represents the ratio of the power of the resource carrying data to the power of the resource carrying the reference signal.
  • Figure 5 shows a specific example.
  • the optional port set may include: port 0, port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9, port 10, port 11, Port 12, port 13, port 14, port 15.
  • UE1, UE2, UE3, and UE4 are respectively denoted as: UE1, UE2, UE3, and UE4.
  • H′ represents the adjusted channel
  • H represents the channel estimated by the terminal device based on the reference signal
  • f(N) represents a parameter or variable or function related to N.
  • the terminal device can adjust the estimated channel through the following formula 1:
  • channel measurement is performed on port 1, port 4, port 9, and port 13, and the multiplexing degrees on these 4 ports are 4, 2, 2, and 3, respectively. If the network equipment transmits the same power on each port, the ratio of the power received by the UE1 on these 4 ports is 1/4:1/2:1/2:1/3. After the network device notifies UE1 of the multiplexing degree on these ports, UE1 can compensate for the power difference between the ports to obtain a more accurate channel estimation result.
  • the adjusted channel H'can be:
  • the adjusted channel H'can be:
  • the adjusted channel H'can be:
  • the terminal device may also receive the port group or CDM group corresponding to the port group or CDM group where the reference signal port is located, and the port group or CDM group can be determined according to the port group or CDM group reuse degree The multiplexing degree of each reference signal port in.
  • the multiplexing degree of the fourth reference signal port has a corresponding relationship with the power adjustment value of each terminal device corresponding to the fourth reference signal port; or, the multiplexing degree of the fourth reference signal port corresponds to the fourth reference signal port.
  • the power adjustment range of each terminal device has a corresponding relationship; or, the number of terminal devices corresponding to the port group where the fourth reference signal port is located is equal to each reference signal port corresponding to each reference signal port in the port group where the fourth reference signal port is located.
  • the power adjustment value of each terminal device has a corresponding relationship; or, the number of terminal devices corresponding to the CDM group where the fourth reference signal port is located is equal to each reference signal port corresponding to each reference signal port in the CDM group where the fourth reference signal port is located.
  • the power adjustment value of each terminal device has a corresponding relationship. That is to say, in the embodiment of the present application, optionally, the multiplexing degree corresponding to the reference signal port may have a corresponding relationship with the power adjustment value or power adjustment range, or the CDM group or port group where the reference signal port is located may have a corresponding relationship.
  • the degree of multiplexing may have a corresponding relationship with the power adjustment value or power adjustment range.
  • the network device notifies the terminal device of the corresponding relationship; or, the protocol or network device may predefine the corresponding relationship between N and the power adjustment value, and the terminal device may determine the corresponding power adjustment value based on the corresponding relationship obtained or saved in advance, and N , And then can make corresponding adjustments according to the determined power adjustment value.
  • the protocol or the network device pre-prescribes the power adjustment value to logN. After receiving N, the terminal device can determine the power adjustment value to logN, and then can make corresponding adjustments according to the determined logN.
  • the terminal device adjusts the estimated channel according to the power adjustment value, refer to the description of Case 2 below.
  • Case 2 The multiplexing information of the reference signal port includes the power adjustment value.
  • the network device may notify the terminal device of the power adjustment value through the above-mentioned method 1 or 2.
  • method 3 can also be used to determine the power adjustment value by the terminal device.
  • the terminal device may adjust the channel estimated by the terminal device based on the reference signal through the power adjustment value and Pc.
  • the power adjustment value can be expressed as a logarithmic value.
  • the specific form of the power adjustment value is not limited, as long as the terminal device can adjust the estimated channel according to the power adjustment value, so as to obtain more accurate channel information.
  • the power adjustment value is recorded as r.
  • Figure 6 shows a specific example.
  • the optional port set may include: port 0, port 1, port 2, port 3, port 4, port 5, port 6, port 7, port 8, port 9, port 10, port 11, Port 12, port 13, port 14, port 15.
  • UE1, UE2, UE3, and UE4 are respectively denoted as: UE1, UE2, UE3, and UE4.
  • H′ represents the adjusted channel
  • H represents the channel estimated by the terminal device based on the reference signal
  • f(r) represents a parameter or variable or function related to r.
  • the terminal device can adjust the estimated channel through the following formula 2:
  • channel measurement is performed on port 1, port 4, port 9, and port 13.
  • the power adjustment values on these 4 ports are r1, r2, r4, and r6, respectively.
  • UE1 can compensate for the power difference between the ports to obtain more accurate channel estimation results.
  • the adjusted channel H'can be:
  • the adjusted channel H'can be:
  • the adjusted channel H'can be:
  • the power adjustment value is taken as an example for description, and it should be understood that the embodiment of the present application does not limit this.
  • it may be the power adjustment range.
  • the terminal device After receiving the power adjustment range, the terminal device can arbitrarily take a value within the power adjustment range as the power adjustment value.
  • the terminal device may also receive the power adjustment value of the port group or CDM group where the reference signal port is located, and according to the power adjustment value of the port group or CDM group, the port group or CDM group can be determined The power adjustment value of the terminal device corresponding to each reference signal port.
  • Case 1 and Case 2 exemplarily introduces the manner in which the terminal device determines the channel information based on the multiplexing information of the reference signal port. It should be understood that any manner that enables a terminal device to determine channel information according to the multiplexing information falls within the protection scope of the embodiments of the present application.
  • the reference signal is a CSI-RS as an example for description, and the embodiments of the present application are not limited thereto, and any reference signal that can be used for channel measurement or channel estimation is applicable.
  • the port and the reference signal port are sometimes used interchangeably. It should be understood that, in the embodiment of the present application, the port means the reference signal port. In addition, in the above method embodiments, the port or the reference signal port can be replaced with a CSI-RS port.
  • the size of the sequence number of each process does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any implementation process of the embodiments of this application. limited.
  • the terminal device considers the multiplexing information of each reference signal port, so that more accurate channel information can be obtained.
  • the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device
  • the methods and operations implemented by the network device can also be implemented by It can be implemented by components (such as chips or circuits) of network devices.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the foregoing method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module corresponding to each function as an example.
  • Fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 700 may include a communication unit 710 and a processing unit 720.
  • the communication unit 710 can communicate with the outside, and the processing unit 720 is used for data processing.
  • the communication unit 710 may also be referred to as a communication interface or a transceiving unit.
  • the communication interface is used to input and/or output information, and the information includes at least one of instructions and data.
  • the communication device may be a chip or a chip system.
  • the communication interface may be an input/output interface, which may be an input/output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system.
  • the processor may also be embodied as a processing circuit or a logic circuit.
  • the communication device 700 can implement the steps or processes performed by the terminal device corresponding to the above method embodiment.
  • it can be a terminal device, or a chip or chip system or a chip system configured in the terminal device. Circuit.
  • the communication device 700 may be referred to as a terminal device.
  • the communication unit 710 is configured to perform the transceiving-related operations on the terminal device side in the above method embodiment
  • the processing unit 720 is configured to perform the processing related operations on the terminal device in the above method embodiment.
  • the communication unit 710 is configured to: receive a reference signal; the processing unit 720 is configured to: determine the channel information according to the reference signal and the multiplexing information corresponding to each of the T reference signal ports; where each reference signal port Corresponding to multiple terminal devices, the terminal devices corresponding to each reference signal port are not all the same, and the multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, and T is an integer greater than 1.
  • the processing unit 720 is specifically configured to: estimate the channel according to the reference signal; adjust the estimated channel through the multiplexing information corresponding to each of the T reference signal ports, and determine the adjusted channel information.
  • the processing unit 720 is specifically configured to: adjust the estimated channel and determine the adjusted channel information through the multiplexing information and Pc corresponding to each of the T reference signal ports, where Pc represents the power of the data-bearing resource The ratio to the power on the resource carrying the reference signal.
  • the communication unit 710 is further configured to: receive multiplexing information corresponding to each of the T reference signal ports.
  • the T reference signal ports include a first reference signal port and a second reference signal port, and the number of terminal devices corresponding to the first reference signal port and the second reference signal port is the same; the communication unit 710 is further configured to: receive the first reference signal port The multiplexing information corresponding to the reference signal code division multiplexing CDM group where the reference signal port and the second reference signal port are located, wherein the corresponding multiplexing information of the reference signal CDM group can be determined to correspond to the first reference signal and the second reference signal Or, receiving multiplexing information corresponding to the reference signal port group where the first reference signal port and the second reference signal port are located, wherein the multiplexing information corresponding to the reference signal port group can determine the first reference signal and Multiplexing information corresponding to the second reference signal.
  • the T reference signal ports include a third reference signal port
  • the multiplexing information corresponding to the third reference signal port includes any one of the following: the number of terminal devices corresponding to the third reference signal port, and the third reference signal port corresponding to The identification of the multiple terminal devices, the power adjustment value of each terminal device corresponding to the third reference signal port, the power adjustment range of each terminal device corresponding to the third reference signal port, and the reference signal port where the third reference signal port is located The power adjustment value corresponding to the group, and the power adjustment range corresponding to the reference signal port group where the third reference signal port is located.
  • the T reference signal ports include a fourth reference signal port, and the number of terminal devices corresponding to the fourth reference signal port has a corresponding relationship with the power adjustment value of each terminal device corresponding to the fourth reference signal port; Or, the number of terminal devices corresponding to the fourth reference signal port has a corresponding relationship with the power adjustment range of each terminal device corresponding to the fourth reference signal port; or, the reference signal port group where the fourth reference signal port is located corresponds to The number of terminal devices has a corresponding relationship with the power adjustment value of each terminal device corresponding to each reference signal port in the reference signal port group where the fourth reference signal port is located; or, the CDM where the fourth reference signal port is located The number of terminal devices corresponding to the group has a corresponding relationship with the power adjustment value of each terminal device corresponding to each reference signal port in the CDM group where the fourth reference signal port is located.
  • the reference signal is a channel state information reference signal.
  • the communication device 700 may implement the steps or processes executed by the terminal device in the method 300 according to the embodiment of the present application.
  • the communication device 700 may include a unit for executing the method executed by the terminal device in the method 300 in FIG. 3 .
  • each unit in the communication device 700 and other operations and/or functions described above are used to implement the corresponding process of the method 300 in FIG. 3.
  • the communication unit 710 can be used to execute step 310 in the method 300
  • the processing unit 720 can be used to execute steps 320, 3201, 3202 in the method 300.
  • the communication unit 710 in the communication device 700 may be implemented by the transceiver 910 in the terminal device 900 shown in FIG. 9, and the processing unit 720 in the communication device 700 may be implemented by the terminal device shown in FIG.
  • the processor 920 in 900 is implemented.
  • the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.
  • the communication unit 710 in the communication device 700 may also be an input/output interface.
  • the communication device 700 can implement the steps or processes performed by the network device in the above method embodiment.
  • it can be a network device, or a chip or chip system configured in the network device. Or circuit.
  • the communication device 700 may be referred to as a network device.
  • the communication unit 710 is configured to perform the transceiving-related operations on the network device side in the above method embodiment
  • the processing unit 720 is configured to perform the processing related operations on the network device in the above method embodiment.
  • the processing unit 720 is configured to: determine the multiplexing information corresponding to each of the T reference signal ports, where each reference signal port corresponds to multiple terminal devices, and the terminal devices corresponding to each reference signal port are not all the same The multiplexing information corresponding to each reference signal port is used to reflect that the reference signal port corresponds to multiple terminal devices, and T is an integer greater than one; the communication unit 710 is used to send the multiplexing information corresponding to each of the T reference signal ports.
  • the communication unit 710 is further configured to: send a reference signal.
  • the communication unit 710 is specifically configured to send multiplexing information corresponding to each of the T reference signal ports.
  • the T reference signal ports include a first reference signal port and a second reference signal port, and the number of terminal devices corresponding to the first reference signal port and the second reference signal port is the same;
  • the communication unit 710 is specifically configured to: send the first reference signal port The multiplexing information corresponding to the reference signal code division multiplexing CDM group where the reference signal port and the second reference signal port are located, wherein the corresponding multiplexing information of the reference signal CDM group can be determined to correspond to the first reference signal and the second reference signal Or, send the multiplexing information corresponding to the reference signal port group where the first reference signal port and the second reference signal port are located, wherein the multiplexing information corresponding to the reference signal port group can determine the first reference signal and Multiplexing information corresponding to the second reference signal.
  • the T reference signal ports include a third reference signal port
  • the multiplexing information corresponding to the third reference signal port includes any one of the following: the number of terminal devices corresponding to the third reference signal port, and the third reference signal port corresponding to The identification of the multiple terminal devices, the power adjustment value of each terminal device corresponding to the third reference signal port, the power adjustment range of each terminal device corresponding to the third reference signal port, and the reference signal port where the third reference signal port is located The power adjustment value corresponding to the group, and the power adjustment range corresponding to the reference signal port group where the third reference signal port is located.
  • the T reference signal ports include a fourth reference signal port, and the number of terminal devices corresponding to the fourth reference signal port has a corresponding relationship with the power adjustment value of each terminal device corresponding to the fourth reference signal port; Or, the number of terminal devices corresponding to the fourth reference signal port has a corresponding relationship with the power adjustment range of each terminal device corresponding to the fourth reference signal port; or, the reference signal port group where the fourth reference signal port is located corresponds to The number of terminal devices has a corresponding relationship with the power adjustment value of each terminal device corresponding to each reference signal port in the reference signal port group where the fourth reference signal port is located; or, the CDM where the fourth reference signal port is located The number of terminal devices corresponding to the group has a corresponding relationship with the power adjustment value of each terminal device corresponding to each reference signal port in the CDM group where the fourth reference signal port is located.
  • the reference signal is a channel state information reference signal.
  • the communication device 700 may implement the steps or processes executed by the network device in the method 300 according to the embodiment of the present application.
  • the communication device 700 may include a unit for executing the method executed by the network device in the method 300 in FIG. 3 .
  • each unit in the communication device 700 and other operations and/or functions described above are used to implement the corresponding process of the method 300 in FIG. 3.
  • the communication unit 710 may be used to execute step 310 in the method 300.
  • the communication unit in the communication device 700 may be implemented by the transceiver 1010 in the network device 1000 shown in FIG. 10, and the processing unit 720 in the communication device 700 may be implemented by the network device shown in FIG.
  • the processor 1020 in 1000 is implemented.
  • the communication unit 710 in the communication device 700 may also be an input/output interface.
  • the transceiver may include a transmitter and/or a receiver, which respectively implement the functions of the sending unit and the receiving unit.
  • FIG. 8 is another schematic block diagram of a communication device 800 provided by an embodiment of the present application.
  • the communication device 800 includes a transceiver 810, a processor 820, and a memory 830.
  • the memory 830 stores programs.
  • the processor 820 is used to execute the programs stored in the memory 830 and execute the programs stored in the memory 830. , So that the processor 820 is configured to execute the relevant processing steps in the above method embodiment, and execute the program stored in the memory 830, so that the processor 820 controls the transceiver 810 to perform the transceiving-related steps in the above method embodiment.
  • the communication device 800 is used to execute the actions performed by the terminal device in the above method embodiment.
  • the execution of the program stored in the memory 830 enables the processor 820 to execute the above method embodiment.
  • the processing steps on the terminal device side in the middle execute the program stored in the memory 830, so that the processor 820 controls the transceiver 810 to perform the receiving and sending steps on the terminal device side in the above method embodiment.
  • the communication device 800 is used to perform the actions performed by the network device in the above method embodiment.
  • the execution of the program stored in the memory 830 enables the processor 820 to perform the above method implementation.
  • the processing steps on the network device side execute the programs stored in the memory 830 so that the processor 820 controls the transceiver 810 to perform the receiving and sending steps on the network device side in the above method embodiment.
  • the embodiment of the present application also provides a communication device 900, and the communication device 900 may be a terminal device or a chip.
  • the communication device 900 may be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 9 shows a simplified schematic diagram of the structure of the terminal device.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 9 only one memory and processor are shown in FIG. 9. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiving unit 910 and a processing unit 920.
  • the transceiving unit 910 may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit 920 may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.
  • the device for implementing the receiving function in the transceiving unit 910 can be regarded as the receiving unit
  • the device for implementing the sending function in the transceiving unit 910 can be regarded as the sending unit, that is, the transceiving unit 910 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the processing unit 920 is configured to perform steps 320, 3201, and 3202 in FIG. 3, and/or the processing unit 920 is also configured to perform other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiving unit 910 is further used to perform step 310 shown in FIG. 3, and/or the transceiving unit 910 is further used to perform other transceiving steps on the terminal device side.
  • FIG. 9 is only an example and not a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG.
  • the chip When the communication device 900 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 1000, and the communication device 1000 may be a network device or a chip.
  • the communication device 1000 can be used to perform actions performed by a network device in the foregoing method embodiments.
  • FIG. 10 shows a simplified schematic diagram of the base station structure.
  • the base station includes 1010 parts and 1020 parts.
  • the 1010 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 1020 part is mainly used for baseband processing and control of base stations.
  • the 1010 part can generally be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the 1020 part is usually the control center of the base station, and may generally be referred to as a processing unit, which is used to control the base station to perform processing operations on the network device side in the foregoing method embodiments.
  • the transceiver unit of part 1010 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 1010 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 1010 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • Part 1020 may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
  • part 1010 of the transceiving unit is used to perform step 310 shown in FIG. 3, and/or part 1010 of the transceiving unit is also used to perform other transceiving steps on the network device side in the embodiment of the present application.
  • the processing unit in part 1020 is used to execute the processing steps on the network device side in the embodiment of the present application.
  • FIG. 10 is only an example and not a limitation, and the foregoing network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG.
  • the chip When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
  • the network equipment is not limited to the above forms, and may also be in other forms: for example, including AAU, CU node and/or DU node, or BBU and adaptive radio unit (ARU), or BBU; It may also be a customer premises equipment (CPE), or it may be in other forms, which is not limited in this application.
  • AAU CU node and/or DU node
  • BBU and adaptive radio unit
  • ARU adaptive radio unit
  • BBU BBU
  • CPE customer premises equipment
  • the above-mentioned CU and/or DU can be used to perform the actions described in the previous method embodiment implemented by the network device, and the AAU can be used to perform the network device described in the previous method embodiment to send or receive from the terminal device action.
  • the AAU can be used to perform the network device described in the previous method embodiment to send or receive from the terminal device action.
  • the embodiment of the present application also provides a processing device, including a processor and an interface.
  • the processor may be used to execute the method in the foregoing method embodiment.
  • the processing device may be a chip.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • each step of the above method can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute the steps shown in FIGS. 3 to 6 The method of any one of the embodiments is shown.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes the steps shown in FIGS. 3 to 6 The method of any one of the embodiments is shown.
  • the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
  • the computer may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc), SSD)) etc.
  • the network equipment in the foregoing device embodiments corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit transmits the receiving or sending in the method embodiments.
  • other steps can be executed by the processing unit (processor).
  • the processing unit processor
  • the functions of specific units refer to the corresponding method embodiments. Among them, there may be one or more processors.
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed between two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component can be based on, for example, a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • a signal having one or more data packets (e.g. data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through a signal) Communicate through local and/or remote processes.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

La présente invention concerne un procédé de détermination de canal et un appareil de communication. Le procédé peut comporter les étapes suivantes : un dispositif terminal reçoit un signal de référence, le dispositif terminal pouvant estimer de façon préliminaire un canal selon le signal de référence ; et le dispositif terminal détermine, selon le canal estimé de façon préliminaire et des informations de multiplexage correspondant à chaque port parmi T ports de signal de référence, des informations de canal à rapporter, chaque port de signal de référence correspondant à une pluralité de dispositifs terminaux, et les dispositifs terminaux correspondant à chaque port de signal de référence n'étant pas tous les mêmes ; les informations de multiplexage qui correspondent à chaque port de signal de référence étant utilisées pour refléter le fait que le port de signal de référence correspond à une pluralité de dispositifs terminaux ; et T étant un entier supérieur à un. Au moyen de la présente invention, après avoir estimé un canal selon un signal de référence, un dispositif terminal combine des informations de multiplexage correspondant à des ports de signal de référence pour déterminer des informations de canal finales rapportées, de sorte que des informations de canal plus exactes peuvent être obtenues et que les performances d'estimation de canal sont améliorées, ce qui améliore les performances de communication de données.
PCT/CN2019/119245 2019-11-18 2019-11-18 Procédé de détermination de canal et appareil de communication WO2021097625A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/119245 WO2021097625A1 (fr) 2019-11-18 2019-11-18 Procédé de détermination de canal et appareil de communication

Applications Claiming Priority (1)

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