CN112104396B

CN112104396B - Communication method, network equipment, terminal equipment and storage medium

Info

Publication number: CN112104396B
Application number: CN201910523151.8A
Authority: CN
Inventors: 罗亚军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2021-12-14
Anticipated expiration: 2039-06-17
Also published as: CN112104396A

Abstract

The application discloses a communication method, comprising: the network device receives indication information and capability information of the terminal device, wherein the indication information is used for indicating that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed position, and the capability information is used for indicating that the terminal device can support actual amplitude information and phase information of an explicit feedback channel. The network equipment configures the reporting mode of the channel state information CSI of the terminal equipment to be a preset mode. The network equipment sends a channel state information reference signal CSI-RS to the terminal equipment, and the CSI-RS comprises a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period. And the network equipment receives channel information explicitly fed back by the terminal equipment, wherein the channel information comprises actual amplitude information and phase information of the channel. According to the technical scheme, the CSI reporting precision of Massive MIMO in the WTx scene can be improved, and the CPE terminal in the WTx scene can obtain better user experience.

Description

Communication method, network equipment, terminal equipment and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method.

Background

Next-generation mobile communication systems require high-capacity and high-quality data transmission. A Massive multiple-input multiple-output (Massive MIMO) technology is considered as one of key technologies that can achieve future high-speed data transmission, and the technology achieves significant improvement in spectral efficiency by using Massive antennas. The accuracy of Channel State Information (CSI) that can be acquired by the base station determines the performance of Massive MIMO to a great extent. The CSI is to enable the base station to obtain the channel status and interference condition of downlink transmission, and the terminal device measures the downlink transmission channel, and obtains and reports the measurement result in a quantized manner.

At present, a scheme reported by a terminal device is generally based on a precoding feedback scheme, for example, based on MIMO standards of R10 and R13/R14, a protocol is adopted to define codebooks in advance, each codebook corresponds to a Precoding Matrix Indicator (PMI), and the terminal device performs channel estimation based on channel state information-reference signal (CSI-RS) measurement, matches an optimal protocol codebook, and then feeds back the PMI through an uplink.

For different scenarios, the minimum period of the feedback defined by the protocol is in millisecond level, and in addition, the feedback of the PMI may occupy a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH) resource, so in some scenarios, such as an enhanced mobile broadband (eMBB) scenario, the feedback information amount of the PMI is not too much, otherwise, the uplink performance may be affected. However, this also causes other scenarios, such as wireless home broadband user (WTTx) scenario, where the PMI-based feedback has quantization precision loss problem, and affects the performance of downlink single-user beam forming (SU-BF) or multi-user beam forming (MU-BF).

Disclosure of Invention

The embodiment of the application provides a communication method, which can improve CSI reporting precision of Massive MIMO in a WTx scene, so that a CPE terminal in the WTx scene obtains better user experience.

In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

a first aspect of the present application provides a communication method, which may be used in a cellular communication system, and is mainly used in a wireless communication system such as Long Term Evolution (LTE) and New Radio (NR). The LTE is mainly suitable for a Frequency Division Duplex (FDD) Massive MIMO scene, or a Sounding Reference Signal (SRS) resource limited or coverage limited scene in a Time Division Duplex (TDD) Massive MIMO scene. The NR is mainly applicable to FDD Massive MIMO scenes, or SRS resource limited or coverage limited scenes in TDD Massive MIMO scenes. The method can comprise the following steps: the network device receives indication information and capability information of the terminal device, wherein the indication information is used for indicating that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed position, and the capability information is used for indicating that the terminal device can support actual amplitude information and phase information of an explicit feedback channel. The reporting mode of the channel state information CSI configured by the network equipment is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel. The network equipment sends a channel state information reference signal CSI-RS to the terminal equipment, and the CSI-RS can comprise a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period. The network device receives channel information explicitly fed back by the terminal device, and the channel information may include actual amplitude information and phase information of the channel.

Optionally, with reference to the first aspect, in a first possible implementation manner, the feedback period is not lower than a preset value.

A second aspect of the present application provides a communication method, which may include: the terminal device sends indication information and capability information to the network device, wherein the indication information indicates that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed position, and the capability information indicates that the terminal device can support actual amplitude information and phase information of an explicit feedback channel. The method comprises the steps that the terminal equipment receives configuration information of the network equipment, the reporting mode of the configuration information, which is used for configuring Channel State Information (CSI) of the terminal equipment, is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel. The terminal equipment receives a channel state information reference signal (CSI-RS) sent by the network equipment, and the CSI-RS can comprise a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period.

And the terminal equipment determines channel information according to the CSI-RS and displays the feedback channel information to the network equipment, wherein the channel information can comprise actual amplitude information and phase information of a channel.

Optionally, with reference to the second aspect, in a first possible implementation manner, the method may include: the feedback period is not lower than a preset value.

A third aspect of the present application provides a network device, which may include: the terminal equipment comprises a receiving unit and capability information, wherein the receiving unit is used for receiving indication information and capability information of the terminal equipment, the indication information is used for indicating that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information is used for indicating that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel. And the configuration unit is used for configuring the reporting mode of the channel state information CSI of the terminal equipment as a preset mode according to the indication information and the capability information received by the receiving unit, wherein the preset mode is the actual amplitude information and the phase information of the explicit feedback channel. And the sending unit is used for sending a channel state information reference signal (CSI-RS) to the terminal equipment, and the CSI-RS can comprise a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period. And the receiving unit is further configured to receive channel information explicitly fed back by the terminal device, where the channel information may include actual amplitude information and phase information of the channel.

Optionally, with reference to the third aspect, in a first possible implementation manner, the feedback period is not lower than a preset value.

A terminal device according to a fourth aspect of the present application may include: and the sending unit is used for sending indication information and capability information to the network equipment, wherein the indication information indicates that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information indicates that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel. And the receiving unit is used for receiving configuration information of the network equipment, wherein the reporting mode of the configuration information for configuring the channel state information CSI of the terminal equipment is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel. The receiving unit is further configured to receive a channel state information reference signal CSI-RS sent by the network device, where the CSI-RS may include a resource location of a null of the CSI-RS, a sending period of CSI-RS information, and a feedback period of the CSI. And the sending unit is further used for displaying feedback channel information to the network equipment, wherein the channel information may include actual amplitude information and phase information of the channel, and the channel information is determined by the terminal equipment according to the CSI-RS.

Optionally, with reference to the fourth aspect, in a first possible implementation manner, the feedback period is not lower than a preset value.

A fifth aspect of the present application provides a network device, which may include: and the communication interface is used for receiving indication information and capability information of the terminal equipment, wherein the indication information is used for indicating that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information is used for indicating that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel. The terminal equipment further comprises a processor coupled with the receiver and used for configuring the reporting mode of the channel state information CSI of the terminal equipment to be a preset mode according to the indication information and the capability information received by the receiver, wherein the preset mode is the actual amplitude information and the phase information of the explicit feedback channel. The communication interface is further configured to send a channel state information reference signal CSI-RS to the terminal device, where the CSI-RS may include a CSI-RS air interface resource location, a CSI-RS information sending period, and a CSI feedback period. And the communication interface is also used for receiving channel information explicitly fed back by the terminal equipment, and the channel information can comprise actual amplitude information and phase information of the channel.

Optionally, with reference to the fifth aspect, in a first possible implementation manner, the feedback period is not lower than a preset value.

A sixth aspect of the present application provides a terminal device, which may include: a memory, a communication interface coupled with the memory, the communication interface to execute computer readable instructions in the memory to perform operations comprising: and sending indication information and capability information to the network equipment, wherein the indication information indicates that the terminal equipment is low-mobility equipment or equipment deployed in the family or equipment at a fixed position, and the capability information indicates that the terminal equipment can support the actual amplitude information and the actual phase information of the explicit feedback channel. The method comprises the steps of receiving configuration information of the network equipment, wherein the reporting mode of the configuration information for configuring Channel State Information (CSI) of the terminal equipment is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel. And receiving a channel state information reference signal (CSI-RS) sent by the network equipment, wherein the CSI-RS can comprise a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period. And the terminal equipment is used for displaying feedback channel information to the network equipment, wherein the channel information can comprise actual amplitude information and phase information of a channel, and the channel information is determined by the terminal equipment according to the CSI-RS.

Optionally, with reference to the sixth aspect, in a first possible implementation manner, the feedback period is not lower than a preset value.

A seventh aspect of the present application provides a communication system that may include a network device and a terminal device. The network device is the network device of the first aspect or the first description of the first aspect. The terminal device is the terminal device described in the second aspect or the first kind of the second aspect.

An eighth aspect of the present application provides a computer-readable storage medium, which, when executed on a computer device, causes the computer device to perform a communication method as the first aspect or any one of the possible implementations of the first aspect.

A ninth aspect of the present application provides a computer-readable storage medium, which when executed on a computer device, causes the computer device to perform a communication method as set forth in the second aspect or any one of the possible implementations of the second aspect.

A tenth aspect of the present application provides a computer program product containing instructions that, when run on a computer, enable the computer to perform the communication method of the first aspect or any one of the possible implementations of the first aspect.

An eleventh aspect of the present application provides a computer program product containing instructions which, when run on a computer, enable the computer to perform a method of communication as set forth in the second aspect or any one of the possible implementations of the second aspect.

A twelfth aspect of the present application provides a chip system, where the chip system includes a processor, configured to support a network device to implement the functions in the first aspect or any one of the possible implementation manners of the first aspect.

A thirteenth aspect of the present application provides a chip system, which includes a processor, and is configured to support a terminal device to implement the functions recited in the second aspect or any one of the possible implementations of the second aspect.

According to the technical scheme, the terminal equipment displays the actual amplitude information or the actual phase information of the feedback channel to the network equipment, so that the CSI reporting precision of Massive MIMO in a WTx scene can be improved, and a CPE terminal in the WTx scene can obtain better user experience.

Drawings

FIG. 1 is a diagram illustrating a WTx scenario in an embodiment of the present application;

FIG. 2 is a schematic view of one of the embodiments of the present application;

fig. 3 is a schematic hardware structure diagram of a network device in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a network device in an embodiment of the present application;

fig. 5 is a schematic diagram of a hardware structure of a terminal device in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a terminal device in the embodiment of the present application.

Detailed Description

Embodiments of the present application will now be described with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all, embodiments of the present application. As can be known to those skilled in the art, with the development of technology and the emergence of new scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

The embodiment of the application provides a communication method, a network device, a terminal device, and a storage medium, where channel information is relatively stable, and a channel feedback cycle is not required to be too frequent in a scenario, for example, the terminal device is a low mobility device, or a device with a fixed location, for example, a WTTx terminal device, a Customer Premises Equipment (CPE), a terminal device deployed in a home, or a high-power terminal device with a fixed location, and the like, an object of improving channel information feedback accuracy is achieved by increasing an amount of feedback information, so that in the scenario, the terminal device can obtain an optimal SU-BF performance or an optimal MU-BF performance, improve spectral efficiency, and increase user experience. The following are detailed below.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Moreover, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus. The naming or numbering of the steps appearing in the present application does not mean that the steps in the method flow have to be executed in the chronological/logical order indicated by the naming or numbering, and the named or numbered process steps may be executed in a modified order depending on the technical purpose to be achieved, as long as the same or similar technical effects are achieved. The division of the modules presented in this application is a logical division, and in practical applications, there may be another division, for example, multiple modules may be combined or integrated into another system, or some features may be omitted, or not executed, and in addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, and the indirect coupling or communication connection between the modules may be in an electrical or other similar form, which is not limited in this application. The modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed in a plurality of circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present disclosure.

It should be noted that in this embodiment of the present application, "predefined" or "preset" indicates that the method may be implemented by saving a corresponding code, table, or other means that can be used to indicate related information in advance in a device (for example, including a terminal device and a network device), and this application is not limited to the specific implementation manner. For example, the predefined may refer to a definition in a protocol.

It should be noted that, in the embodiments of the present application, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand the meaning. Information (information), signal (signal), message (message), channel (channel) may sometimes be mixed, it should be noted that the intended meaning is consistent when the distinction is not emphasized.

It should be noted that, in the embodiments of the present application, "reporting" and "feedback" are often used interchangeably, but those skilled in the art can understand the meaning thereof. Therefore, in the embodiments of the present application, the intended meanings thereof are consistent when the differences are not emphasized.

The embodiment of the application can be used for a cellular communication system, and is mainly used for wireless communication systems such as Long Term Evolution (LTE) and New Radio (NR). It should be understood that the radio access network device in the wireless communication system may be any device having a wireless transceiving function or a chip that can be disposed on the device, and the device includes but is not limited to: a base station, an evolved node B (eNB), a home base station, an Access Point (AP), a wireless relay node, a wireless backhaul node, a Transmission Point (TP), a Transmission and Reception Point (TRP) in a wireless fidelity (WIFI) system, and the like, and may also be a gNB in an NR system, or may also be a component or a part of a device constituting the base station, such as a Central Unit (CU), a Distributed Unit (DU), or a baseband unit (BBU). It should be understood that, in the embodiments of the present application, there is no limitation on the specific technology and the specific device form adopted by the radio access network device. In this application, the radio access network device may refer to the radio access network device itself, or may be a chip applied to the radio access network device to complete a wireless communication processing function. The radio access network devices are hereinafter collectively referred to as network devices.

The terminal device according to the embodiment of the present application refers to a low mobility device, or a fixed location device, such as a WTTx terminal, a CPE terminal, a terminal deployed in a home, or a fixed location high power terminal. Specifically, the terminal device may communicate with the network device, complete downlink measurement, send a measurement report to the network device, and receive resource configuration information sent by the network device.

With the popularity of optical fiber, more and more households can access the internet through optical fiber, i.e., fiber to the home. Fiber to the home can provide high-rate data transmission service for the home, but has the disadvantages of high cost and long deployment time. For dense urban areas, the user density is high, the deployment cost can be shared, but for remote areas, the population is sparse, and the number of fewer families needs to support the high optical fiber cost. Meanwhile, the deployment of the optical fiber needs trenching and line burying, certain requirements are also met for deployment terrain, and the construction may not be allowed for a part of protected buildings. Therefore, in general, the fiber-to-the-home mode has the characteristics of high speed, high cost and great deployment difficulty, and is suitable for dense urban areas.

For remote areas or areas with great construction difficulty, a wireless to the X (WTTx) manner is a better choice. Fig. 1 is a schematic view of an application scenario provided in the embodiment of the present application. WTTx may also be referred to as wireless to the home. As shown in fig. 1, in a WTTx scenario, a home subscriber deploys and installs a Customer Premises Equipment (CPE), and the CPE is connected to an operator-deployed wireless access network device through a wireless air interface and then accesses a network, and the CPE may provide network connection for more terminal devices. The terminal device may be a set-top box (STB for short) of a mobile phone, a computer, a television, etc.

If a WTTx scenario is considered, under the condition that the CPE is generally stationary, the channel information is relatively stable, the channel feedback period also does not need to be too frequent, and if the minimum period of feedback defined by a protocol in the prior art is still used, for example, 5ms, or if an eMBB scenario is considered, the feedback information amount of the PMI is not too much, so that the quantization precision loss problem exists, and the performance of SU-BF or MU-BF is affected. In order to solve the technical problem, embodiments of the present application provide a communication method, so as to implement that, in a WTTx scenario, a CPE terminal can obtain an optimal SU-BF or MU-BF performance, improve spectrum efficiency, and increase user experience.

Fig. 2 is a flowchart illustrating a communication method according to the present application.

As shown in fig. 2, a communication method provided in the present application may include the following steps:

201. and the terminal equipment sends the indication information and the capability information to the network equipment.

The indication information is used for indicating a network device, a terminal device is a low mobility device, or a device deployed in a home, or a device at a fixed location. When the network device receives the indication information sent by the terminal device, the network device determines that the terminal device is a low-mobility device, a device deployed in a home, or a device at a fixed location. The capability information indicates whether the terminal device can support explicit feedback of actual amplitude information or phase information of the channel, and hereinafter, a manner of supporting explicit feedback of actual amplitude information or phase information of the channel is referred to as a non-codebook-capable-display-capable manner.

It should be noted that the terminal device may send the indication information and the capability information to the network device through one message, or may send the indication information and the capability information to the network device through multiple messages.

202. And the network equipment configures the CSI reporting mode of the terminal equipment to be a preset mode.

If the network device determines that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed location according to the received indication information and the capability information, and the terminal device can support explicit feedback of actual amplitude information or phase information of a channel, the network device configures a reporting mode of CSI of the terminal device to be a preset mode, where the preset mode is to explicitly feedback the actual amplitude information or phase information of the channel. It should be noted that, the preset manner here is that the explicit feedback of the actual amplitude information or the phase information of the channel includes the actual amplitude information of the channel, the phase information of the channel, and the actual amplitude information of the channel and the phase information of the channel.

203. And the network equipment sends the CSI-RS to the terminal equipment.

The network device configures a periodic CSI-RS through L3 signaling, and L3 (layer 3) is a Radio Resource Control (RRC) layer. The CSI-RS can comprise a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period, wherein the CSI-RS resource is mainly used for terminal equipment to perform channel estimation and channel measurement, the CSI-RS sending period is mainly used for the terminal equipment to periodically receive and process the CSI-RS resource, and the CSI-RS feedback period is mainly used for the terminal equipment to periodically measure and feed back the channel information. It should be noted that in the embodiments of the present application, "channel information," "channel characteristic information" and "channel state information" are often used interchangeably, and those skilled in the art should understand that "channel information," "channel characteristic information" and "channel state information" express the same meaning without particular emphasis on distinction. The channel information may include Channel Quality Indication (CQI) information, PMI, and Rank Indicator (RI).

Optionally, in a specific embodiment, in the case that the CSI-RS feedback period is configured to display a non-codebook mode, the period is not lower than a preset value, for example, the preset value may be 100ms, or 500ms, or 1s, and specifically, the feedback period may be configured according to a requirement in an actual application. Because the feedback period is prolonged, the feedback cost is not additionally increased relative to the codebook mode, and the feedback precision is higher relative to the codebook mode.

204. And the terminal equipment displays the feedback channel information to the network equipment.

And the terminal equipment performs channel estimation periodically according to the CSI-RS, advances the channel characteristic information and feeds back the channel information periodically according to the CSI-RS feedback. The channel information includes actual amplitude information or phase information of the channel.

In the prior art, millisecond feedback is generally adopted, and the feedback of CSI channel information is in a quantization codebook mode. By the technical scheme provided by the embodiment, the CSI reporting precision of Massive MIMO in the WTx scene can be greatly improved, meanwhile, the feedback cost is low, the capacity performance gain can be greatly improved, and the CPE terminal in the WTx scene can obtain better user experience.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between a network device and a terminal device. It is understood that the network device and the terminal device include hardware structures and/or software modules for performing the functions in order to realize the functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Described in terms of hardware structures, the network device in fig. 2 may be implemented by one entity device, may also be implemented by multiple entity devices together, and may also be a logic function module in one entity device, which is not specifically limited in this embodiment of the present application.

For example, the network device may be implemented by the communication device in fig. 3. Fig. 3 is a schematic diagram illustrating a hardware structure of a network device according to an embodiment of the present application. The network device includes at least one processor 301, communication lines 302, memory 303, and at least one communication interface 304.

The processor 301 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.

The communication link 302 may include a path for transmitting information between the aforementioned components.

The communication interface 304 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), etc.

Memory 303 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory may be separate and coupled to the processor via a communication line 302. The memory may also be integral to the processor.

The memory 303 is used for storing computer-executable instructions for executing the present invention, and is controlled by the processor 301. The processor 301 is configured to execute computer-executable instructions stored in the memory 303 to implement the methods of communication provided by the embodiments described below.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application program codes, which are not specifically limited in the embodiments of the present application.

In particular implementations, processor 301 may include one or more CPUs such as CPU0 and CPU1 in fig. 3, for example, as an example.

In particular implementations, network device may include multiple processors, such as processor 301 and processor 307 in fig. 3, for one embodiment. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

In particular implementations, the network device may also include an output device 305 and an input device 306, as one embodiment. The output device 305 is in communication with the processor 301 and may display information in a variety of ways. For example, the output device 305 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 306 is in communication with the processor 301 and may receive user input in a variety of ways. For example, the input device 306 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

In the embodiment of the present application, the network device may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

For example, in the case of dividing each functional module in an integrated manner, fig. 4 shows a schematic structural diagram of a network device.

As shown in fig. 4, the network device provided in the embodiment of the present application may include a receiving unit 401 and a sending unit 402,

the receiving unit 401 is configured to execute step 201 in the embodiment corresponding to fig. 2, and step 204 in the embodiment corresponding to fig. 2.

A sending unit 402, configured to execute step 202 in the embodiment corresponding to fig. 2, and step 203 in the embodiment corresponding to fig. 2.

Described in terms of hardware structures, the terminal device in fig. 2 may be implemented by one entity device, may also be implemented by multiple entity devices together, and may also be a logic function module in one entity device, which is not specifically limited in this embodiment of the present application.

For example, the terminal device may be implemented by the communication device in fig. 5. Fig. 5 is a schematic diagram illustrating a hardware structure of a terminal device according to an embodiment of the present application. The terminal device comprises at least one processor 501, communication lines 502, memory 503 and at least one communication interface 504.

The processor 501 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.

The communication link 502 may include a path for transmitting information between the aforementioned components.

The communication interface 504 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), etc.

The memory 503 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory may be separate and coupled to the processor via a communication line 502. The memory may also be integral to the processor.

The memory 503 is used for storing computer-executable instructions for executing the present application, and is controlled by the processor 501 to execute. The processor 501 is configured to execute computer-executable instructions stored in the memory 503 to implement the communication method provided by the following embodiments of the present application.

In particular implementations, processor 501 may include one or more CPUs such as CPU0 and CPU1 in fig. 5 as an example.

In particular implementations, terminal device may include multiple processors, such as processor 501 and processor 507 in fig. 5, for example, as an example. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

In a specific implementation, the terminal device may further include an output device 505 and an input device 506, as an embodiment. An output device 505, which is in communication with the processor 501, may display information in a variety of ways. For example, the output device 505 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 506 is in communication with the processor 501 and may receive user input in a variety of ways. For example, the input device 306 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

In the embodiment of the present application, the terminal device may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

For example, in the case of dividing each functional module in an integrated manner, fig. 6 shows a schematic structural diagram of a terminal device.

As shown in fig. 6, the terminal device provided in the embodiment of the present application may include a receiving unit 601 and a sending unit 602,

the receiving unit 601 is configured to execute step 202 in the embodiment corresponding to fig. 2, and step 203 in the embodiment corresponding to fig. 2.

A sending unit 602, configured to execute step 201 in the embodiment corresponding to fig. 2, and step 204 in the embodiment corresponding to fig. 2.

Since the network device and the terminal device provided in the embodiment of the present application may be used to execute the above communication method, the technical effect obtained by the network device and the terminal device may refer to the above method embodiment, and will not be described herein again.

In the above embodiment, the network device and the terminal device are presented in a form of dividing each functional module in an integrated manner. Of course, in the embodiment of the present application, each function module of the network device and the terminal device may also be divided corresponding to each function, which is not specifically limited in the embodiment of the present application.

Optionally, an embodiment of the present application provides a chip system, where the chip system includes a processor, and is used to support a network device and a terminal device to implement the above communication method. In one possible design, the system-on-chip further includes a memory. The memory is used for storing program instructions and data necessary for the terminal equipment or the network equipment. The chip system may be formed by a chip, and may also include a chip and other discrete devices, which is not specifically limited in this embodiment of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.

The communication method, the network device, the terminal device, and the storage medium provided in the embodiments of the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A method of communication, comprising:

the method comprises the steps that network equipment receives indication information and capability information of terminal equipment, wherein the indication information is used for indicating that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information is used for indicating that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel;

the network equipment configures a reporting mode of the CSI of the terminal equipment to be a preset mode, wherein the preset mode is actual amplitude information and phase information of an explicit feedback channel;

the network equipment sends a channel state information reference signal (CSI-RS) to the terminal equipment, wherein the CSI-RS comprises a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period;

and the network equipment receives channel information explicitly fed back by the terminal equipment, wherein the channel information comprises actual amplitude information and phase information of the channel.

2. The communication method according to claim 1, wherein the feedback period is not lower than a preset value.

3. A method of communication, comprising:

the method comprises the steps that terminal equipment sends indication information and capability information to network equipment, wherein the indication information indicates that the terminal equipment is low-mobility equipment, equipment deployed in a home or equipment at a fixed position, and the capability information indicates that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel;

the terminal equipment receives configuration information of the network equipment, wherein the reporting mode of the configuration information for configuring Channel State Information (CSI) of the terminal equipment is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel;

the terminal equipment receives a channel state information reference signal (CSI-RS) sent by the network equipment, wherein the CSI-RS comprises a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period;

and the terminal equipment determines channel information according to the CSI-RS and displays and feeds back the channel information to the network equipment, wherein the channel information comprises actual amplitude information and phase information of the channel.

4. The communication method according to claim 3, comprising: the feedback period is not lower than a preset value.

5. A network device, comprising:

the terminal equipment comprises a receiving unit and a processing unit, wherein the receiving unit is used for receiving indication information and capability information of the terminal equipment, the indication information is used for indicating that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information is used for indicating that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel;

the configuration unit is used for configuring the reporting mode of the Channel State Information (CSI) of the terminal equipment to be a preset mode according to the indication information and the capability information received by the receiving unit, wherein the preset mode is the actual amplitude information and the phase information of an explicit feedback channel;

the sending unit is used for sending a channel state information reference signal (CSI-RS) to the terminal equipment, and the CSI-RS comprises a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period;

and the receiving unit is further configured to receive channel information explicitly fed back by the terminal device, where the channel information includes actual amplitude information and phase information of the channel.

6. A terminal device, comprising:

a sending unit, configured to send, to a network device, indication information and capability information, where the indication information indicates that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed location, and the capability information indicates that the terminal device can support actual amplitude information and phase information of an explicit feedback channel;

a receiving unit, configured to receive configuration information of a network device, where a reporting mode of the configuration information for configuring channel state information CSI of the terminal device is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel;

the receiving unit is further configured to receive a channel state information reference signal CSI-RS sent by the network device, where the CSI-RS includes a CSI-RS air interface resource location, a CSI-RS information sending period, and a CSI feedback period;

the sending unit is further configured to display feedback channel information to the network device, where the channel information includes actual amplitude information and phase information of the channel, and the channel information is determined by the terminal device according to the CSI-RS.

7. A network device, comprising:

the communication interface is used for receiving indication information and capability information of terminal equipment, wherein the indication information is used for indicating that the terminal equipment is low-mobility equipment or equipment deployed in a home or equipment at a fixed position, and the capability information is used for indicating that the terminal equipment can support actual amplitude information and phase information of an explicit feedback channel;

the device further comprises a processor coupled with the receiver and configured to configure a reporting mode of the Channel State Information (CSI) of the terminal device as a preset mode according to the indication information and the capability information received by the receiver, wherein the preset mode is actual amplitude information and phase information of an explicit feedback channel;

the communication interface is further configured to send a channel state information reference signal CSI-RS to the terminal device, where the CSI-RS includes a CSI-RS air interface resource location, a CSI-RS information sending period, and a CSI feedback period;

the communication interface is further configured to receive channel information explicitly fed back by the terminal device, where the channel information includes actual amplitude information and phase information of the channel.

8. A terminal device, comprising:

a memory for storing a plurality of data to be transmitted,

a communication interface coupled with the memory, the communication interface to execute computer-readable instructions in the memory to:

sending indication information and capability information to a network device, wherein the indication information indicates that the terminal device is a low-mobility device, or a device deployed in a home, or a device at a fixed position, and the capability information indicates that the terminal device can support actual amplitude information and phase information of an explicit feedback channel;

the configuration information is used for receiving configuration information of network equipment, the reporting mode of the configuration information for configuring Channel State Information (CSI) of the terminal equipment is a preset mode, and the preset mode is actual amplitude information and phase information of an explicit feedback channel;

receiving a channel state information reference signal (CSI-RS) sent by the network equipment, wherein the CSI-RS comprises a CSI-RS air interface resource position, a CSI-RS information sending period and a CSI feedback period;

and the terminal equipment is used for displaying feedback channel information to the network equipment, wherein the channel information comprises actual amplitude information and phase information of the channel, and the channel information is determined by the terminal equipment according to the CSI-RS.

9. A communication system, characterized in that the system comprises a network device and a terminal device,

the network device is the network device described in claim 1 or 2;

the terminal device is the terminal device described in claim 3 or 4.

10. A computer-readable storage medium, which when executed on a computer device, causes the computer device to perform the method of claims 1-2 or 3-4.