Information acquisition method, transmission method and device, and computer readable storage medium

Abstract

An information acquisition method, a sending method and device, and a computer readable storage medium, the information acquisition method comprising: determining a data rate supported by a terminal device based on capability information of the terminal device. With the above scheme, the terminal device can indicate the data rate it supports to the network device through the capability information, and the network device determines the data rate supported by the terminal device based on the capability information of the terminal device.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to an information acquisition method, a transmission method and apparatus, and a computer-readable storage medium. Background Technology

[0002] In fifth-generation mobile communication technology (5G) th In 5G (5G) version 17, a low-capacity terminal device with a maximum bandwidth of 20MHz, also known as RedCap terminal device, was introduced.

[0003] Release 18 introduced lower-capability RedCap endpoints to further reduce their cost. To configure scheduling based on endpoint capabilities, network devices need to know the data rates supported by these lower-capability RedCap endpoints. Summary of the Invention

[0004] One of the objectives of this invention is to enable network devices to know the data rates supported by RedCap terminal devices with lower capabilities.

[0005] In a first aspect, the present invention provides an information acquisition method, comprising: determining the data rate supported by the terminal device based on the capability information of the terminal device.

[0006] The terminal device sends capability information, which indicates the data rates it supports. The network device obtains this capability information and is thus able to determine the data rates supported by the terminal device.

[0007] Optionally, the network device can also identify the terminal device as a RedCap terminal device. Further, the RedCap terminal device is a lower-capability RedCap terminal device from Release 18. Thus, the network device can determine the data rates supported by the lower-capability RedCap terminal device in Release 18.

[0008] Optionally, the capability information of the terminal device includes the maximum number of MIMO layers supported by the terminal device and the modulation order; determining the data rate supported by the terminal device based on the capability information of the terminal device includes: when the maximum number of MIMO layers supported by the terminal device is 2 and the reported modulation order is 1, determining the data rate as the first rate.

[0009] The capability information transmitted by the terminal device includes: a maximum supported MIMO layer count of 2 and a modulation order of 1. Based on the capability information transmitted by the terminal device, the network device determines that the data rate of the terminal device is the first rate. The terminal device only needs to transmit the maximum supported MIMO layer count and the modulation order to indicate that the data rate is the first rate, without needing to transmit a scaling factor. Therefore, it can indicate the data rate as the first rate to the network device while reducing uplink overhead.

[0010] Optionally, the capability information of the terminal device includes the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor; determining the data rate supported by the terminal device based on the capability information of the terminal device includes: when the maximum number of MIMO layers supported by the terminal device is 2, the modulation order is 1, and the scaling factor is 0.375, the data rate is determined to be the first rate.

[0011] The scaling factor of 0.375 is only transmitted when the terminal device supports a maximum of 2 MIMO layers. Once the network device learns that the terminal device supports a maximum of 2 MIMO layers, a modulation order of 1, and a scaling factor of 0.375, it can determine that the terminal device's data rate is the first rate.

[0012] Optionally, the capability information of the terminal device includes the maximum number of MIMO layers supported by the terminal device being 2, the modulation order, and the scaling factor; determining the data rate supported by the terminal device based on the capability information of the terminal device includes: when the maximum number of MIMO layers supported by the terminal device is 2, the modulation order is 1, and the scaling factor is 0.4, the data rate is determined to be a first rate.

[0013] Based on the terminal device's capability information, the network device learns that the terminal device supports a maximum of 2 MIMO layers, a modulation order of 1, and a scaling factor of 0.4. The network device can translate the scaling factor from 0.4 to 0.375, minimizing changes to existing protocols while determining the terminal device's data rate.

[0014] In other words, even if the terminal device reports a maximum supported MIMO layer of 2, a modulation order of 1, and a scaling factor of 0.4, the network device still calculates the data rate of the terminal device based on the capability information reported by the terminal device, using the product of these three factors equal to 0.75.

[0015] Optionally, determining the data rate supported by the terminal device based on the terminal device's capability information includes: obtaining a rate indication parameter from the terminal device's capability information; and determining the data rate based on the rate indication parameter.

[0016] Terminal devices can indicate rate indication parameters in their capability information. Network devices can obtain the data rate of the terminal device from the rate indication parameters in the capability information. For example, the terminal device can directly indicate that the supported data rate is the first rate, without needing to report parameters such as the maximum supported MIMO layers, modulation order, and scaling factor to determine and calculate the terminal device's data rate.

[0017] Optionally, the rate indication parameter is 0.75. The rate indication parameter can be determined by the product of the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor.

[0018] Optionally, determining the data rate supported by the terminal device based on the terminal device's capability information includes: obtaining the first rate from the terminal device's capability information.

[0019] Terminal devices can also directly indicate the first rate in their capability information. Therefore, network devices can directly obtain the data rate of the terminal device from its capability information.

[0020] Secondly, the present invention provides an information transmission method, comprising: transmitting capability information, wherein the capability information is used to indicate the data rate supported by the terminal device.

[0021] Optionally, the information sending method includes: determining that the terminal device is a RedCap terminal device.

[0022] Optionally, the data rate is a first rate.

[0023] Optionally, the capability information of the terminal device includes: the maximum number of MIMO layers supported by the terminal device is 2, and the modulation order is 1.

[0024] Optionally, the capability information of the terminal device includes: the maximum number of MIMO layers supported by the terminal device is 2, the modulation order is 1, and the rate scaling factor is 0.375.

[0025] Optionally, the capability information of the transmitting terminal device includes: a transmission rate indication parameter, wherein the rate indication parameter indicates the first rate.

[0026] Optionally, the capability information of the transmitting terminal device includes: transmitting at the first rate.

[0027] Thirdly, the present invention provides an information acquisition device, comprising: a determining unit, configured to determine the data rate supported by the terminal device based on the capability information of the terminal device.

[0028] Fourthly, the present invention provides an information transmission device, comprising: a transmission unit for transmitting capability information of a terminal device, wherein the capability information of the terminal device is used to indicate the data rate supported by the terminal device.

[0029] Fifthly, the present invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored, wherein the computer program, when run by a processor, performs the steps of any of the above-described information acquisition methods; or, the computer program, when run by a processor, performs the steps of any of the above-described information transmission methods.

[0030] The present invention also provides another information acquisition device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the steps of any of the above-described information acquisition methods when running the computer program.

[0031] The present invention also provides another information transmission device, including a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the processor executes the steps of any of the above-described information transmission methods when running the computer program. Attached Figure Description

[0032] Figure 1 This is a flowchart of an information acquisition method according to an embodiment of the present invention;

[0033] Figure 2 This is a flowchart of an information sending method according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of an information acquisition device according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of an information sending device according to an embodiment of the present invention. Detailed Implementation

[0036] As mentioned above, in Release 18, network devices cannot know the data rates supported by lower-capability RedCap endpoint devices.

[0037] In this embodiment of the invention, the terminal device sends capability information, which indicates the data rate supported by the terminal device. The network device obtains the capability information of the terminal device, thereby determining the data rate supported by the terminal device.

[0038] To make the above-mentioned objectives, features and beneficial effects of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] In this embodiment of the invention, the network device is a device that provides wireless communication functions for a terminal, and may also be referred to as a radio access network (RAN) device or access network element. The network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to: next-generation base stations (gNB), evolved node B (eNB), radio network controllers (RNC), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node B, or home node B (HNB)), baseband units (BBUs), transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, etc., in a 5th-generation (5G) mobile communication system. Network devices can also be wireless controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios, or they can be relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be means for providing wireless communication capabilities to terminal devices, such as a chip system. For example, a chip system may include chips, and may also include other discrete devices.

[0040] In some embodiments, the network device can also communicate with Internet Protocol (IP) networks, such as the Internet, private IP networks, or other data networks.

[0041] This invention provides an information acquisition method, referring to... Figure 1 The following will provide a detailed explanation through specific steps.

[0042] In this embodiment of the invention, the information acquisition method provided in steps 101 to 102 below can be executed by a chip with data processing capabilities in a network device, or by a chip module with data processing capabilities in a network device, or by the network device itself. The following description uses the execution of the information acquisition method by a network device as an example.

[0043] Step 101: Obtain the capability information of the terminal device.

[0044] In practice, terminal devices can acquire and transmit their own capability information. Network devices can acquire the capability information of terminal devices.

[0045] In some embodiments, the terminal device can communicate directly with the network device, and the terminal device sends capability information to the network device.

[0046] In other embodiments, the terminal device can also communicate with the network device via a relay device or the like. In this scenario, the terminal device can send its capability information to the relay device, which then forwards the terminal device's capability information to the network device.

[0047] Step 102: Based on the capability information of the terminal device, determine the data rate supported by the terminal device.

[0048] In practice, the capability information of a terminal device can be used to indicate the data rates it supports. Therefore, network devices can determine the data rates supported by a terminal device based on this capability information.

[0049] In this embodiment of the invention, the terminal device can be a low-capability terminal device (i.e., a RedCap terminal device).

[0050] In some embodiments, the low-capability terminal device can be a RedCap terminal device provided in R17, with a maximum bandwidth capability of 20MHz and a corresponding capability field of supportOfRedCap-r17.

[0051] In other embodiments, the low-capability terminal device can be a RedCap terminal device with even lower capabilities provided in version R18, and its corresponding capability field can be supportOfRedCap-r18.

[0052] In practical implementation, for the lower-capability RedCap terminal devices provided in Release 18, the corresponding RF bandwidth capability is 20MHz, but the baseband bandwidth capability is 5MHz (corresponding to 25 PRBs for a 15kHz subcarrier and 12 PRBs for a 30kHz subcarrier). Alternatively, the R18 RedCap terminal device has both 20MHz RF and 20MHz baseband bandwidth capabilities, but its peak rate is reduced to a lower level, such as 10Mbps. This is equivalent to a reduction in the TBS (transmission block size, TB-size) that such terminal devices can process per timeslot.

[0053] In other embodiments, the low-capability terminal device may also be a lower-capability RedCap terminal device provided in subsequent further evolution versions (such as R19, R20, etc.).

[0054] The terminal device described in the following embodiments is at least one type of RedCap terminal device with lower capabilities provided in R17 and subsequent evolution versions.

[0055] In some embodiments, the terminal device may send type information to the network device, the type information indicating that the terminal device supports supportOfRedCap-R18, thereby indicating that it is a RedCap terminal device with lower capabilities provided in R18 version. The network device may obtain the type information sent by the terminal device and determine that the terminal device is a RedCap terminal device with lower capabilities provided in R18 version.

[0056] In this embodiment of the invention, the data rate supported by the terminal device can be a first rate. The first rate can be the maximum data rate supported by the terminal device, that is, the peak data rate corresponding to the terminal device. Alternatively, the first rate can also be the only data rate supported by the terminal device.

[0057] In practice, the data rate supported by the terminal device can be the first rate.

[0058] In some embodiments, the first rate may be 10 Mbps. In other embodiments, the first rate may be other values.

[0059] In this embodiment of the invention, the capability information of the terminal device may include the maximum number of MIMO layers and modulation order supported by the terminal device. Once the network device obtains the capability information of the terminal device, it can determine the maximum number of MIMO layers and modulation order supported by the terminal device, and thus determine the first rate.

[0060] In practical implementation, the maximum number of MIMO layers supported by the terminal device can be determined by the parameter V. layers Characterization, the modulation order of the terminal device can be determined by the parameter Q.m Characterization.

[0061] In practical applications, the maximum number of MIMO layers supported by a terminal device can be equated to the maximum number of receiving antennas on the terminal device. Specifically, if the maximum number of receiving antennas on the terminal device is 2, then the maximum number of MIMO layers supported by the terminal device is 2. If the maximum number of receiving antennas on the terminal device is 1, then the maximum number of MIMO layers supported by the terminal device is 1.

[0062] In practical applications, the modulation order is related to the modulation method. The modulation order can take values ​​of 1, 2, 4, 6, 8, etc.

[0063] Specifically, when binary phase shift keying (BPSK) is used to modulate the signal, Q m =1; when the signal is modulated using Quadrature Phase Shift Keying (QPSK), Q = 1. m = 2; when the signal is modulated using 16-bit quadrature amplitude modulation (QAM), Q = 2. m =4; when 64QAM is used to modulate the signal, Q m =6.

[0064] In some embodiments, the terminal device may set the maximum supported number of multiple-input multiple-output (MIMO) layers to 2 and the modulation order to 1 in its capability information. When the network device determines from the terminal device's capability information that the terminal device supports a maximum number of MIMO layers of 2 and a modulation order of 1, it can determine the first rate.

[0065] For example, when the network device determines from the terminal device's capability information that the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, it determines that the first rate is 10Mbps.

[0066] In other words, the capability information transmitted by the terminal device can indicate the first data rate supported by the terminal device by including only the maximum number of MIMO layers and the modulation order supported by the terminal device. This can reduce the uplink overhead of the terminal device.

[0067] In this embodiment of the invention, for a terminal device, its corresponding capability information may include the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor. The maximum number of MIMO layers supported by the terminal device can be determined by the parameter V. layers Characterization, the modulation order of the terminal device can be determined by the parameter Q. m The scaling factor of a terminal device can be characterized by the parameter f.

[0068] In the existing protocol, the scaling factor f can take values ​​of 0.4, 0.75, 0.8, and 1.

[0069] In practical implementation, the product of the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor can be used to characterize the data rate supported by the terminal device, that is, to characterize the first rate of the terminal device. When V layers ×Q m When ×f is 0.75, the first rate can be represented as 10 Mbps.

[0070] As described in the above embodiments, in the prior art, Q m The value of V can be 1, 2, 4, 6, 8, etc. layers The value of V can be 2, 4, 8, etc. If the terminal device does not support MIMO, then V layers The value of can essentially be considered as 1. The scaling factor f can take values ​​of 0.4, 0.75, 0.8, and 1.

[0071] Therefore, when the maximum number of MIMO layers supported by the terminal device is 2, V layers ×Q m The minimum value of ×f is 0.8, so V cannot be obtained. layers ×Q m The case where ×f = 0.75.

[0072] In response to the above scenario, in some embodiments of the present invention, a new scaling factor may be introduced, and the value of the new scaling factor is 0.375.

[0073] If the terminal device determines that the first data rate is 10 Mbps, it can set the maximum supported MIMO layers to 2, the modulation order to 1, and the scaling factor to 0.375 in its capability information. The terminal device then sends this capability information. The network device, by learning from the terminal device's capability information that the maximum supported MIMO layers are 2, the modulation order is 1, and the scaling factor is 0.375, can determine that the terminal device's data rate is indeed the first data rate (10 Mbps).

[0074] In some embodiments, a scaling factor of 0.375 is allowed to be sent only when the terminal device sends type information supporting supportOfRedCap-R18 and / or the maximum number of MIMO layers supported by the terminal device is 2. In other words, if the maximum number of MIMO layers supported by the terminal device is other values, such as the maximum number of MIMO layers supported by the terminal device is 1, then a scaling factor of 0.375 is not allowed to be sent.

[0075] In this embodiment of the invention, if the terminal device supports the aforementioned first rate, the capability information sent by the terminal device includes: a maximum supported MIMO layer count of 2, a modulation order of 1, and a scaling factor of 0.4. The network device, by determining from the terminal device's capability information that the maximum supported MIMO layer count is 2, the modulation order is 1, and the scaling factor is 0.4, can determine that the terminal device's data rate is the first rate.

[0076] In other words, although V layers ×Q m The value of ×f is 0.8, but the network device can translate the above scaling factor value to 0.375. In other words, the network device determines V... layers ×Q m When the value of ×f is 0.8, the default value of 0.8 should be translated to 0.75, thus determining the first rate as 10Mbps.

[0077] Understandably, network devices can also adopt V. layers ×Q m The value of ×f is 0.8. The corresponding rate (greater than 10Mbps) is calculated, and the calculated rate is equivalent to 10Mbps.

[0078] Therefore, by translating the scaling factor, existing communication protocols can be maintained without introducing new rate levels.

[0079] In addition, network devices can also adopt V layers ×Q m The value of ×f is (0.8), and the corresponding rate (greater than 10Mbps) is calculated. The calculated rate greater than 10Mbps is taken as the first rate of the terminal.

[0080] In this embodiment of the invention, the terminal device may also carry a rate indication parameter in the capability information. The network device obtains the capability information, retrieves the rate indication parameter from it, and then determines the first rate.

[0081] Specifically, the rate indication parameter is set to 0.75. The network device obtains the rate indication parameter of 0.75 from the capability information, and can then determine that the first rate is 10Mbps.

[0082] In practical implementation, the rate indication parameter can be determined by the product of the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor; that is, the rate indication parameter can be V. layers ×Q m ×f.

[0083] In some embodiments, when the terminal device sends type information indicating support for RedCap-R18 and / or the maximum number of MIMO layers supported by the terminal device is 2, the network device can determine that the first rate is 10 Mbps. In this case, the maximum number of MIMO layers is the rate indication parameter mentioned above. In this scenario, the terminal device does not need to report the modulation order and scaling factor.

[0084] In other embodiments, when the terminal device sends type information indicating support for RedCap-R18, the maximum number of MIMO layers supported by the terminal device is 2, and the modulation order is 1, the network device can determine that the first rate is 10 Mbps. In this case, the maximum number of MIMO layers and the modulation order can be used as rate indication parameters. In this scenario, the terminal device does not need to report the scaling factor.

[0085] In this embodiment of the invention, the terminal device may also carry the first rate in the capability information. The network device, upon obtaining the capability information, directly determines the first rate supported by the terminal device.

[0086] For example, the terminal device indicates a first rate of 10 Mbps in its capability information. The network device receives the capability information and determines that the first rate is 10 Mbps.

[0087] In specific implementations, when the capability information carries the first rate or rate indication parameter, the capability information may also include the maximum number of MIMO layers supported by the terminal device.

[0088] In practice, RedCap terminal devices can transmit capability information and type information in a single signaling message. Alternatively, RedCap terminal devices can transmit capability information and type information separately in different signaling messages.

[0089] Reference Figure 2 This invention provides an information sending method according to an embodiment of the invention, which will be described in detail below through specific steps.

[0090] In this embodiment of the invention, the information transmission method provided in steps 201 to 202 below can be executed by a chip with data processing capabilities in the terminal device, or by a chip module with data processing capabilities in the terminal device, or by the terminal device itself. The following description uses the terminal device executing the following information transmission method as an example.

[0091] Step 201: Generate capability information.

[0092] Step 202: Send capability information.

[0093] In practice, step 201 above is optional.

[0094] In practice, terminal devices can acquire and transmit their own capability information. Network devices can acquire the capability information of terminal devices.

[0095] In some embodiments, the terminal device can communicate directly with the network device, and the terminal device sends capability information to the network device.

[0096] In other embodiments, the terminal device can also communicate with the network device via a relay device or the like. In this scenario, the terminal device can send its capability information to the relay device, which then forwards the terminal device's capability information to the network device.

[0097] In practical implementation, the capability information of the terminal device can be used to indicate the data rate supported by the terminal device. Specifically, the content included in the capability information of the terminal device, and the specific process by which the network device determines the first rate based on the capability information of the terminal device, can be referred to steps 101 to 102 above, and will not be elaborated here.

[0098] Reference Figure 3 An information acquisition device 30 according to an embodiment of the present invention is provided, comprising: an acquisition unit 301 and a determination unit 302, wherein:

[0099] Acquisition unit 301 is used to acquire capability information of the terminal device;

[0100] The determining unit 302 is used to determine the data rate supported by the terminal device based on the terminal device's capability information.

[0101] In specific implementation, the specific execution process of the above-mentioned acquisition unit 301 and determination unit 302 can be referred to steps 101 to 102, which will not be elaborated here.

[0102] In specific implementation, the aforementioned information acquisition device 30 may correspond to a chip with data processing function in a network device; or to a chip module with data processing function in a network device; or to a network device.

[0103] Reference Figure 4 An information sending device 40 according to an embodiment of the present invention is provided, comprising: a generating unit 401 and a sending unit 402, wherein:

[0104] Generation unit 401 is used to generate capability information;

[0105] The sending unit 402 is used to send capability information of the terminal device, the capability information of the terminal device being used to indicate the data rate supported by the terminal device.

[0106] In specific implementation, the specific execution process of the above-mentioned generation unit 401 and sending unit 402 can be referred to steps 201 to 202, which will not be elaborated here.

[0107] In specific implementations, the aforementioned information transmission device 40 may correspond to a chip with data processing function in a terminal device; or to a chip module with data processing function in a terminal device; or to a terminal device.

[0108] In specific implementation, the modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both.

[0109] For example, for various devices and products applied to or integrated into a chip, each module / unit can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module / unit can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0110] This invention also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, storing a computer program thereon. When the computer program is run by a processor, it executes the steps of the information acquisition method provided in steps 101 to 102, or executes the steps of the information transmission method provided in steps 201 to 202.

[0111] This invention also provides another information acquisition device, including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor runs the computer program, it executes the steps of the information acquisition method provided in steps 101 to 102.

[0112] This invention also provides another information transmission device, including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor runs the computer program, it executes the steps of the information transmission method provided in steps 201 to 202.

[0113] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include ROM, RAM, disk, or optical disk, etc.

[0114] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An information acquisition method characterized by comprising: include: The terminal device was determined to be a low-capacity terminal device. Based on the capability information of the terminal device, determine the data rate supported by the terminal device; The capability information of the terminal device includes the maximum number of MIMO layers and modulation order supported by the terminal device. The step of determining the data rate supported by the terminal device based on the terminal device's capability information includes: when the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, the data rate is determined to be a first rate, where the first rate is the maximum data rate or the only data rate supported by the terminal device, and the first rate is 10 Mbps.

2. The information acquisition method as described in claim 1, characterized in that, The capability information of the terminal device includes the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor; determining the data rate supported by the terminal device based on the capability information includes: When the terminal device supports a maximum of 2 MIMO layers, a modulation order of 1, and a scaling factor of 0.375, the data rate is determined to be the first rate.

3. The information acquisition method as described in claim 1, characterized in that, The capability information of the terminal device includes the maximum number of MIMO layers supported by the terminal device, the modulation order, and the scaling factor; determining the data rate supported by the terminal device based on the capability information includes: When the terminal device supports a maximum of 2 MIMO layers, a modulation order of 1, and a scaling factor of 0.4, the data rate is determined to be the first rate.

4. The information acquisition method as described in claim 1, characterized in that, The determination of the data rate supported by the terminal device based on the terminal device's capability information includes: Obtain the rate indication parameter from the capability information of the terminal device; The data rate is determined based on the rate indication parameter.

5. The information acquisition method as described in claim 4, characterized in that, The rate indication parameter is 0.

75.

6. The information acquisition method as described in claim 1, characterized in that, The determination of the data rate supported by the terminal device based on the terminal device's capability information includes: The first rate is obtained from the capability information of the terminal device.

7. A method for sending information, characterized in that, include: The terminal device was determined to be a low-capacity terminal device. Send capability information, which indicates the data rate supported by the terminal device; The capability information of the terminal device includes the maximum number of MIMO layers and the modulation order supported by the terminal device; when the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, the data rate is indicated to be a first rate, which is the maximum data rate or the only data rate supported by the terminal device, and the first rate is 10Mbps.

8. The information transmission method as described in claim 7, characterized in that, The capability information of the terminal device includes: the maximum number of MIMO layers supported by the terminal device is 2, the modulation order is 1, and the rate scaling factor is 0.

375.

9. The information transmission method as described in claim 7, characterized in that, The capability information of the transmitting terminal device includes: a transmission rate indication parameter, wherein the rate indication parameter indicates the first rate.

10. The information transmission method as described in claim 7, characterized in that, The capability information of the transmitting terminal device includes: transmitting the first rate.

11. An information acquisition device, characterized in that, include: A determination unit is used to determine whether a terminal device is a low-capability terminal device. Based on the capability information of the terminal device, determine the data rate supported by the terminal device; The capability information of the terminal device includes the maximum number of MIMO layers and modulation order supported by the terminal device. The step of determining the data rate supported by the terminal device based on the terminal device's capability information includes: when the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, the data rate is determined to be a first rate, where the first rate is the maximum data rate or the only data rate supported by the terminal device, and the first rate is 10 Mbps.

12. An information transmitting device, characterized in that, include: The transmitting unit is used to determine that the terminal device is a low-capability terminal device. The terminal device capability information is sent, which indicates the data rate supported by the terminal device. The terminal device capability information includes the maximum number of MIMO layers and the modulation order supported by the terminal device. When the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, the data rate is indicated as a first rate, which is the maximum data rate or the only data rate supported by the terminal device, and the first rate is 10 Mbps.

13. A computer-readable storage medium, said computer-readable storage medium being a non-volatile storage medium or a non-transient storage medium, having stored thereon a computer program, characterized in that, When the computer program is run by the processor, it performs the steps of the information acquisition method according to any one of claims 1 to 6; Alternatively, perform the steps of the information transmission method according to any one of claims 7 to 10.

14. An information acquisition device, comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the information acquisition method according to any one of claims 1 to 6.

15. An information transmission device, comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the information transmission method according to any one of claims 7 to 10.

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