Information obtaining method and device, information sending method and device and computer readable storage medium

Abstract

The invention discloses an information acquisition method and device, an information sending method and device, and a computer readable storage medium, and the information acquisition method comprises the steps: determining a data rate supported by terminal equipment based on the capability information of the terminal equipment; by adopting the scheme, the terminal equipment can indicate the supported data rate to the network equipment through the capability information; and the network equipment determines the data rate supported by the terminal equipment based on the capability information of the terminal equipment.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to an information acquisition method, a sending method and device, and a computer-readable storage medium. Background Art

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

[0003] In the R18 version, RedCap terminal devices with lower capabilities are introduced to further reduce the cost of terminal devices. In order to perform corresponding scheduling configuration according to the capabilities of the terminal devices, the network device needs to know the data rate supported by the RedCap terminal devices with lower capabilities. Summary of the invention

[0004] One of the objectives of the present invention is to enable a network device to learn the data rate supported by a RedCap terminal device with lower capabilities.

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

[0006] The terminal device sends capability information, which is used to indicate the data rate supported by the terminal device. The network device obtains the capability information of the terminal device, so as to determine the data rate supported by the terminal device.

[0007] Optionally, the network device may also determine that the terminal device is a RedCap terminal device. Further, the RedCap terminal device is a RedCap terminal device with lower capabilities in the R18 version. Thus, the network device can determine the data rate supported by the RedCap terminal device with lower capabilities in the R18 version.

[0008] Optionally, the capability information of the terminal device includes the maximum number of MIMO layers and the modulation order supported by the terminal device; 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 to be the first rate.

[0009] The capability information sent by the terminal device includes: the maximum number of MIMO layers supported is 2 and the modulation order is 1. The network device determines that the data rate of the terminal device is the first rate based on the capability information sent by the terminal device. The terminal device only needs to send the maximum number of MIMO layers supported and the modulation order to indicate that the data rate is the first rate without sending a scaling factor, so it can reduce the uplink overhead while indicating to the network device that the data rate is the first rate.

[0010] Optionally, the capability information of the terminal device includes a maximum number of MIMO layers, a modulation order, and a scaling factor supported by the terminal device; and 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, determining that the data rate is the first rate.

[0011] The scaling factor is 0.375 only when the maximum number of MIMO layers supported by the terminal device is 2. When the network device learns that 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, it can determine that the data rate of the terminal device is the first rate.

[0012] Optionally, the capability information of the terminal device includes a maximum number of MIMO layers supported by the terminal device of 2, a modulation order, and a 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, determining the data rate to be the first rate.

[0013] Based on the capability information of the terminal device, the network device learns that 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 network device can translate the scaling factor from 0.4 to 0.375, while determining the data rate of the terminal device and minimizing changes to the existing protocol.

[0014] That is to say, even if the terminal device reports that the maximum number of MIMO layers supported is 2, the modulation order is 1, and the scaling factor is 0.4, when the network device determines the data rate of the terminal device based on the capability information reported by the terminal device, it still calculates it according to the product of these three factors equal to 0.75.

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

[0016] The terminal device can indicate the rate indication parameter in the capability information. The network device obtains the rate indication parameter from the capability information to obtain the data rate of the terminal device. For example, the terminal device directly indicates that the supported data rate is the first rate, without having to determine and calculate the data rate of the terminal device by reporting the maximum number of MIMO layers supported, the modulation order, and the scaling factor.

[0017] Optionally, the rate indication parameter is 0.75. The rate indication parameter may 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 a data rate supported by the terminal device based on capability information of the terminal device includes: acquiring the first rate from the capability information of the terminal device.

[0019] The terminal device may also directly indicate the first rate in the capability information. Thus, the network device can directly obtain the data rate of the terminal device from the capability information of the terminal device.

[0020] In a second aspect, the present invention provides an information sending method, comprising: sending capability information, wherein the capability information is used to indicate a data rate supported by a 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 sending terminal device includes: a sending rate indication parameter, and the rate indication parameter indicates the first rate.

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

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

[0028] In a fourth aspect, the present invention provides an information sending device, comprising: a sending unit, configured to send capability information of a terminal device, wherein the capability information of the terminal device is used to indicate a data rate supported by the terminal device.

[0029] In a fifth aspect, 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, and when the computer program is executed by a processor, the steps of any of the above-mentioned information acquisition methods are executed; or, when the computer program is executed by a processor, the steps of any of the above-mentioned information sending methods are executed.

[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 be run on the processor, and the processor executes the steps of any of the above-mentioned information acquisition methods when running the computer program.

[0031] The present invention also provides another information sending device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the steps of any of the above-mentioned information sending methods when running the computer program. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a flow chart of an information acquisition method in an embodiment of the present invention;

[0033] Figure 2 is a flow chart of an information sending method in an embodiment of the present invention;

[0034] Figure 3 is a structural schematic diagram of an information acquisition device in an embodiment of the present invention;

[0035] Figure 4 It is a structural diagram of an information sending device in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] As mentioned above, in R18, network devices cannot know the data rates supported by lower-capability RedCap terminal devices.

[0037] In the embodiment of the present invention, the terminal device sends capability information, and the capability information is used to indicate the data rate supported by the terminal device. The network device obtains the capability information of the terminal device, so as to determine the data rate supported by the terminal device.

[0038] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the embodiment of the present invention, the network device is a device that provides a wireless communication function for a terminal, and may also be referred to as a radio access network (RAN) device, or an access network element, etc. The network device may support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes, but is not limited to: a next generation base station (gNB), an evolved node B (eNB), a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), a transmitting and receiving point (TRP), a transmitting point (TP), a mobile switching center, etc. in the fifth generation mobile communication system (5th-generation, 5G). The network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolving PLMN. In some embodiments, the network device may also be a device having a wireless communication function for a terminal device, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

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

[0041] The embodiment of the present invention provides a method for obtaining information. Figure 1 , the following is a detailed description through specific steps.

[0042] In the embodiment of the present invention, the information acquisition method provided in the following steps 101 to 102 can be executed by a chip with data processing capability in a network device, or by a chip module with data processing capability in a network device, or by a network device. The following description is made by taking the network device executing the following information acquisition method as an example.

[0043] Step 101, obtaining capability information of the terminal device.

[0044] In a specific implementation, the terminal device can obtain its own capability information and send its own capability information. The network device can obtain the capability information of the terminal device.

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

[0046] In other embodiments, the terminal device may also communicate with the network device through a relay device, etc. In this scenario, the terminal device may send capability information to the relay device, and the relay device may send the capability information of the terminal device to the network device.

[0047] Step 102: Determine the data rate supported by the terminal device based on the capability information of the terminal device.

[0048] In a specific implementation, the capability information of the terminal device may be used to indicate the data rate supported by the terminal device. Thus, the network device may determine the data rate supported by the terminal device based on the capability information of the terminal device.

[0049] In the embodiment of the present invention, the terminal device may be a low-capability terminal device (ie, a RedCap terminal device).

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

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

[0052] In a specific implementation, for the lower-capability RedCap terminal devices provided in the R18 version, the corresponding RF bandwidth capability is 20MHz, but the baseband bandwidth capability is 5MHz (corresponding to 25 PRBs for 15KHz subcarriers and 12 PRBs for 30KHz subcarriers). Alternatively, the RF bandwidth capability of the R18 RedCap terminal device is 20MHz, and the baseband bandwidth capability is 20MHz, 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 this type of terminal device can handle in each time slot.

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

[0054] The terminal device described in the following embodiments is at least one terminal type of RedCap terminal devices with lower capabilities provided in R17 version 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, so as to indicate that it is a RedCap terminal device with lower capabilities provided in the 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 the R18 version.

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

[0057] In a specific implementation, the data rate supported by the terminal device may be the first rate.

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

[0059] In the embodiment of the present invention, the capability information of the terminal device may include the maximum number of MIMO layers and modulation order supported by the terminal device. The network device acquires the capability information of the terminal device, and can learn the maximum number of MIMO layers and modulation order supported by the terminal device, and then determine the first rate.

[0060] In a specific implementation, the maximum number of MIMO layers supported by the terminal device can be determined by the parameter V layers Characterize, the modulation order of the terminal equipment can be determined by the parameter Qm Representation.

[0061] In specific applications, the maximum number of MIMO layers supported by the terminal device may be equivalent to the maximum number of receiving antennas of the terminal device. Specifically, if the maximum number of receiving antennas of the terminal device is 2, the maximum number of MIMO layers supported by the terminal device is 2. If the maximum number of receiving antennas of the terminal device is 1, the maximum number of MIMO layers supported by the terminal device is 1.

[0062] In specific applications, the modulation order is associated with the modulation mode. The value of the modulation order can be 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 m =2; when the signal is modulated using 16-bit quadrature amplitude modulation (QAM), Q m =4; when 64QAM is used to modulate the signal, Q m =6.

[0064] In some embodiments, the terminal device may set the maximum number of multiple-input multiple-output (MIMO) layers supported to 2 and the modulation order to 1 in the capability information. When the network device determines from the capability information of the terminal device that the maximum number of MIMO layers supported by the terminal device is 2 and the modulation order is 1, the first rate can be determined.

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

[0066] That is, the capability information sent by the terminal device may only include the maximum number of MIMO layers and modulation order supported by the terminal device, which can indicate the first rate supported by the terminal device. Thus, the uplink overhead of the terminal device can be reduced.

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

[0068] In the existing protocol, the scaling factor f may be 0.4, 0.75, 0.8, and 1.

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

[0070] As described in the above embodiments, in the prior art, Q m The value of can be 1, 2, 4, 6, 8, etc. layers The value of can be 2, 4, 8, etc. If the terminal device does not support MIMO, then V layers The value of can be substantially regarded as 1. The value of the scaling factor f can be 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, and V layers ×Q m ×f=0.75.

[0072] For 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 rate is 10Mbps, the terminal device can set the maximum number of MIMO layers supported to 2, the modulation order to 1, and the scaling factor to 0.375 in the capability information. The terminal device sends the above capability information. The network device learns from the capability information of the terminal device that 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, and can determine that the data rate of the terminal device is the first rate (10Mbps).

[0074] In some embodiments, when the terminal device sends type information that supports supportOfRedCap-R18 and / or the maximum number of MIMO layers supported by the terminal device is 2, a scaling factor of 0.375 is allowed to be sent. 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, a scaling factor of 0.375 is not allowed to be sent.

[0075] In the embodiment of the present invention, if the terminal device supports the above-mentioned first rate, the capability information sent by the terminal device includes: the maximum number of MIMO layers supported is 2, the modulation order is 1, and the scaling factor is 0.4. The network device determines from the capability information of the terminal device that 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, and thus determines that the data rate of the terminal device is the first rate.

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

[0077] It is understandable that network devices can also use V layers ×Q m ×f takes a value (0.8), calculates the corresponding rate (greater than 10 Mbps), and then converts the calculated rate into 10 Mbps.

[0078] Therefore, by translating the scaling factor, no new rate level is introduced while being compatible with the existing communication protocol.

[0079] In addition, network devices can also use V layers ×Q m ×f takes a value (0.8), calculates a corresponding rate (greater than 10 Mbps), and uses the calculated rate greater than 10 Mbps as the first rate of the terminal.

[0080] In the embodiment of the present invention, the terminal device may also carry a rate indication parameter in the capability information. The network device obtains the capability information, obtains the rate indication parameter therefrom, and further determines the first rate.

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

[0082] In a specific implementation, the rate indication parameter may 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 may be V layers ×Q m ×f.

[0083] In some embodiments, 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, the network device can determine that the first rate is 10Mbps. At this time, the maximum number of MIMO layers is the above-mentioned rate indication parameter. 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 that supports supportOfRedCap-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 10Mbps. At this time, 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 the embodiment of the present invention, the terminal device may also carry the first rate in the capability information. The network device obtains the capability information and directly determines the first rate supported by the terminal device.

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

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

[0088] In a specific implementation, the RedCap terminal device may transmit the capability information and the type information in one signaling, or may transmit the capability information and the type information in different signalings.

[0089] Reference Figure 2 , a method for sending information in an embodiment of the present invention is given, and is described in detail through specific steps below.

[0090] In the embodiment of the present invention, the information sending method provided in the following steps 201 to 202 can be executed by a chip with data processing capability in a terminal device, or by a chip module with data processing capability in a terminal device, or by a terminal device. The following description is made by taking the terminal device executing the following information sending method as an example.

[0091] Step 201: Generate capability information.

[0092] Step 202: Send capability information.

[0093] In a specific implementation, the above step 201 is optional.

[0094] In a specific implementation, the terminal device can obtain its own capability information and send its own capability information. The network device can obtain the capability information of the terminal device.

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

[0096] In other embodiments, the terminal device may also communicate with the network device through a relay device, etc. In this scenario, the terminal device may send capability information to the relay device, and the relay device may send the capability information of the terminal device to the network device.

[0097] In a specific 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 of the network device determining the first rate based on the capability information of the terminal device can be referred to above steps 101 to 102, which will not be described here.

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

[0099] An acquisition unit 301 is used to acquire capability information of a terminal device;

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

[0101] In a specific implementation, the specific execution process of the acquisition unit 301 and the determination unit 302 may correspond to step 101 to step 102, which will not be described in detail here.

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

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

[0104] A generating unit 401, configured to generate capability information;

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

[0106] In a specific implementation, the specific execution process of the above-mentioned generating unit 401 and the sending unit 402 can correspond to step 201 to step 202, which will not be repeated here.

[0107] In a specific implementation, the above-mentioned information sending device 40 may correspond to a chip with a data processing function in a terminal device; or correspond to a chip module with a data processing function in a terminal device, or correspond to a terminal device.

[0108] In a specific implementation, each module / unit included in each device or product described in the above embodiments may be a software module / unit or a hardware module / unit, or may be partly a software module / unit and partly a hardware module / unit.

[0109] For example, for each device or product applied to or integrated in a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0110] An embodiment of 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. When the computer program is run by a processor, the steps of the information acquisition method provided in steps 101 to 102 are executed, or the steps of the information sending method provided in steps 201 to 202 are executed.

[0111] An embodiment of the present invention also provides another information acquisition device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the information acquisition method provided in steps 101 to 102 are executed.

[0112] An embodiment of the present invention also provides another information sending device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor runs the computer program, the steps of the information sending method provided in steps 201 to 202 are executed.

[0113] A person skilled in the art may understand that all or part of the steps in the various methods of the above embodiments may be completed by instructing the relevant hardware through a program, and the program may be stored in a computer-readable storage medium, which may include: ROM, RAM, disk or CD, etc.

[0114] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A method for obtaining information, characterized in that: include: Based on the capability information of the terminal device, determine the data rate supported by the terminal device.

2. The information acquisition method according to claim 1, characterized in that: Also includes: It is determined that the terminal device is a low-capability terminal device.

3. The information acquisition method according to claim 2, characterized in that: The capability information of the terminal device includes a maximum number of MIMO layers and a modulation order supported by the terminal device; and determining a 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 modulation order is 1, the data rate is determined to be the first rate.

4. The information acquisition method according to claim 2, characterized in that: The capability information of the terminal device includes a maximum number of MIMO layers, a modulation order, and a scaling factor supported by the terminal device; and determining a 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.

5. The information acquisition method according to claim 2, characterized in that: The capability information of the terminal device includes a maximum number of MIMO layers, a modulation order, and a scaling factor supported by the terminal device; and determining a 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 the first rate.

6. The information acquisition method according to claim 2, characterized in that: The determining, based on the capability information of the terminal device, a data rate supported by the terminal device, comprises: Acquiring a rate indication parameter from capability information of the terminal device; Based on the rate indication parameter, the data rate is determined.

7. The information acquisition method according to claim 6, characterized in that: The rate indication parameter is 0.

75.

8. The information acquisition method according to claim 2, characterized in that: The determining, based on the capability information of the terminal device, a data rate supported by the terminal device, comprises: A first rate is obtained from capability information of the terminal device.

9. A method for sending information, characterized in that: include: Send capability information, where the capability information is used to indicate the data rates supported by the terminal device.

10. The information transmission method according to claim 9, characterized in that: Also includes: It is determined that the terminal device is a low-capability terminal device.

11. The information transmission method according to claim 10, characterized in that: The data rate is a first rate.

12. The information transmission method according to claim 11, characterized in that: 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.

13. The information transmission method according to claim 11, 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.

14. The information transmission method according to claim 11, characterized in that: The sending terminal device capability information includes: a sending rate indication parameter, and the rate indication parameter indicates the first rate.

15. The information transmission method according to claim 11, characterized in that: The sending of the capability information of the terminal device includes: sending the first rate.

16. An information acquisition device, characterized in that: include: A determination unit is used to determine the data rate supported by the terminal device based on the capability information of the terminal device.

17. An information sending device, characterized in that: include: A sending unit is used to send capability information of a terminal device, wherein the capability information of the terminal device is used to indicate a data rate supported by the terminal device.

18. A computer-readable storage medium, wherein the computer-readable storage medium is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored thereon, wherein: The computer program is executed by a processor to execute the steps of the information acquisition method according to any one of claims 1 to 8; Alternatively, execute the steps of the information sending method described in any one of claims 9 to 15.

19. An information acquisition device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the information acquisition method according to any one of claims 1 to 8.

20. An information sending device, comprising a memory and a processor, wherein the memory stores a computer program that can be run on the processor, characterized in that: When the processor runs the computer program, the processor performs the steps of the information sending method according to any one of claims 9 to 15.

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