Terminal bandwidth identification method, device, readable storage medium and network device

Abstract

The application discloses a terminal bandwidth identification method and device, a readable storage medium and network equipment, wherein the method comprises the following steps: when it is detected that a target terminal completes physical random access, setting a subset bandwidth BWP corresponding to a data packet to be sent by the target terminal as a first bandwidth; and determining the bandwidth of the target terminal based on the first bandwidth. The application can accurately identify the frequency band bandwidth supported by the target terminal through the first bandwidth, improve the identification accuracy of the frequency band bandwidth supported by the terminal, and avoid the situation that the service establishment fails when the terminal initiates service establishment.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a terminal bandwidth identification method, device, readable storage medium, and network device. Background Technology

[0002] In existing technologies, the 3GPP standardization organization has defined a series of frequency band resources for 5G NR and assigned a frequency band number to each frequency band to identify the frequency band range. When a terminal camps on the network, it will report the frequency band numbers of all frequency bands supported by the network terminal through the UE capability report, and report the working bandwidth supported by the terminal for each frequency band.

[0003] In existing standards, when a terminal reports a frequency band number, the network assumes that the terminal supports the full bandwidth of that band. However, the 3GPP protocol only defines the working bandwidth capability that a terminal can report for each frequency band, while assuming full bandwidth support for each band, this presents challenges for some frequency bands. This results in various terminal types with differing bandwidth capabilities to meet the needs of different operators globally. Terminals cannot report their actual supported bandwidth via the 3GPP protocol, preventing base stations from knowing their actual supported bandwidth. When a terminal initiates service establishment, if the frequency band resources allocated by the base station do not match the terminal's bandwidth capability, resource allocation will fail, leading to service establishment failure.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a terminal bandwidth identification method, device, readable storage medium, and network device, wherein the terminal bandwidth identification method includes:

[0006] When the target terminal completes physical random access, the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal is set as the first bandwidth.

[0007] The bandwidth of the target terminal is determined based on the first bandwidth.

[0008] Further, the step of determining the bandwidth of the target terminal based on the first bandwidth includes:

[0009] If no data packet is received from the target terminal based on the first bandwidth, then the bandwidth of the target terminal is determined to be the target bandwidth corresponding to the first bandwidth.

[0010] Furthermore, the step of determining the bandwidth of the target terminal based on the first bandwidth further includes:

[0011] If a data packet based on the first bandwidth feedback is received from the target terminal, then when the terminal type of the target terminal is the target terminal type, the bandwidth of the target terminal is determined to be the full-band bandwidth.

[0012] Further, the bandwidth of the target terminal type includes a first segment bandwidth or a full-band bandwidth, the target bandwidth corresponding to the first bandwidth is the first segment bandwidth, the minimum frequency of the first segment bandwidth is the minimum frequency of the full-band bandwidth, the minimum frequency of the first bandwidth is greater than the maximum frequency of the first segment bandwidth, and the maximum frequency of the first bandwidth is less than or equal to the maximum frequency of the full-band bandwidth; or,

[0013] The bandwidth of the target terminal type includes a second bandwidth or a full-band bandwidth. The target bandwidth corresponding to the first bandwidth is the second bandwidth. The maximum frequency of the second bandwidth is the maximum frequency of the full-band bandwidth. The maximum frequency of the first bandwidth is less than the minimum frequency of the second bandwidth. The minimum frequency of the first bandwidth is greater than or equal to the minimum frequency of the full-band bandwidth.

[0014] Furthermore, the first bandwidth ranges from 703MHz to 733MHz, and the second bandwidth ranges from 718MHz to 743MHz. The first bandwidth falls within the range of 733MHz to 743MHz, and the second bandwidth falls within the range of 703MHz to 718MHz; or,

[0015] The first bandwidth ranges from 718MHz to 743MHz, and the second bandwidth ranges from 703MHz to 733MHz. The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

[0016] Furthermore, the step of determining the bandwidth of the target terminal based on the first bandwidth further includes:

[0017] If a data packet is received from the target terminal based on the first bandwidth, then the BWP corresponding to the data packet to be sent by the target terminal is set to the second bandwidth;

[0018] If a data packet is received from the target terminal based on the second bandwidth, then the bandwidth of the target terminal is determined to be the full-band bandwidth.

[0019] If no data packet is received from the target terminal based on the second bandwidth, then the bandwidth of the target terminal is determined to be the second bandwidth segment.

[0020] Furthermore, the first bandwidth ranges from 733MHz to 743MHz, and the second bandwidth ranges from 703MHz to 718MHz; or,

[0021] The first bandwidth ranges from 703MHz to 718MHz, and the second bandwidth ranges from 733MHz to 743MHz.

[0022] Furthermore, before the step of setting the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as the first bandwidth when the target terminal completes physical random access, the terminal bandwidth identification method further includes:

[0023] Configure the first static wave velocity SSB and the second SSB;

[0024] If the first information sent by the target terminal based on the low-end bandwidth of the full bandwidth is received, then the terminal type of the target terminal is determined to be the first terminal type;

[0025] If the second information sent by the target terminal based on the full bandwidth high-end bandwidth is received, then the terminal type of the target terminal is determined to be the second terminal type;

[0026] Among them, the frequency band bandwidth of the PRACH corresponding to the first SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the second SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

[0027] Furthermore, to achieve the above objectives, the present invention also provides a terminal bandwidth identification method, characterized in that the terminal bandwidth identification method includes:

[0028] Configure a third static wave speed SSB and a fourth SSB;

[0029] Based on the third SSB and the fourth SSB, the terminal type of the first terminal is determined;

[0030] Among them, the frequency band bandwidth of the PRACH corresponding to the third SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the fourth SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

[0031] Further, the step of determining the terminal type of the first terminal based on the third SSB and the fourth SSB includes:

[0032] If the first information sent by the first terminal based on the low-end bandwidth of the full bandwidth is received, then the terminal type of the target terminal is determined to be the first terminal type;

[0033] If the second information sent by the first terminal based on the full bandwidth high-end bandwidth is received, then the terminal type of the target terminal is determined to be the second terminal type.

[0034] Furthermore, to achieve the above objectives, the present invention also provides a terminal bandwidth identification method, characterized in that the terminal bandwidth identification method includes:

[0035] Set the BWP of the second terminal to the first BWP, and obtain the first signal strength of the reference signal reported by the second terminal based on the first BWP;

[0036] Set the BWP of the second terminal to the second BWP, and obtain the second signal strength of the reference signal reported by the second terminal based on the second BWP;

[0037] The bandwidth of the second terminal is determined based on the first signal strength and the second signal strength.

[0038] Further, the step of determining the bandwidth of the second terminal based on the first signal strength and the second signal strength includes:

[0039] Obtain the absolute difference between the first signal strength and the second signal strength;

[0040] The bandwidth of the second terminal is determined based on the absolute difference.

[0041] Further, the step of determining the bandwidth of the second terminal based on the absolute difference includes:

[0042] If the absolute difference is less than or equal to the preset difference, then the bandwidth of the second terminal is determined to be the full-band bandwidth.

[0043] If the absolute difference is greater than a preset difference, then it is determined whether the first signal strength is greater than the second signal strength.

[0044] If the first signal strength is greater than the second signal strength, then the bandwidth of the second terminal is determined to be the first segment bandwidth;

[0045] If the first signal strength is less than the second signal strength, then the bandwidth of the second terminal is determined to be the second segment bandwidth;

[0046] Wherein, the maximum frequency of the first bandwidth segment is less than the maximum frequency of the second bandwidth segment, the minimum frequency of the first bandwidth segment is the minimum frequency of the full-band bandwidth, and the maximum frequency of the second bandwidth segment is the maximum frequency of the full-band bandwidth; the bandwidth of the first BWP is within the range of the first bandwidth segment, and the maximum frequency of the first BWP is greater than the minimum frequency of the second bandwidth segment; the bandwidth of the second BWP is within the range of the second bandwidth segment, and the minimum frequency of the second BWP is less than the maximum frequency of the first bandwidth segment.

[0047] In addition, to achieve the above objectives, the present invention also provides a terminal bandwidth identification device, the terminal bandwidth identification device comprising: a memory, a processor, and a terminal bandwidth identification program stored in the memory and executable on the processor, wherein the terminal bandwidth identification program, when executed by the processor, implements the steps of the aforementioned terminal bandwidth identification method.

[0048] In addition, to achieve the above objectives, the present invention also provides a readable storage medium storing a terminal bandwidth identification program, which, when executed by a processor, implements the steps of the aforementioned terminal bandwidth identification method.

[0049] Furthermore, to achieve the above objectives, the present invention also provides a network device, the network device comprising:

[0050] Network device, characterized in that the network device comprises:

[0051] The processor is configured to, upon detecting that the target terminal has completed physical random access, set the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as a first bandwidth; and allocate the frequency band bandwidth of the target terminal based on the feedback received on the first bandwidth.

[0052] A transceiver is used to send indication information corresponding to the first bandwidth to the target terminal.

[0053] Furthermore, to achieve the above objectives, the present invention also provides a network device, the network device comprising:

[0054] The processor is used to configure the third static wave speed SSB and the fourth SSB; and to determine the terminal type of the first terminal based on the feedback corresponding to the third SSB or the fourth SSB.

[0055] A transceiver is used to transmit broadcast information based on the third SSB and the fourth SSB;

[0056] Among them, the frequency band bandwidth of the PRACH corresponding to the third SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the fourth SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

[0057] Furthermore, to achieve the above objectives, the present invention also provides a network device, the network device comprising:

[0058] The processor is configured to set the BWP of the second terminal to the first BWP, and obtain a first signal strength of the reference signal reported by the second terminal based on the first BWP; set the BWP of the second terminal to the second BWP, and obtain a second signal strength of the reference signal reported by the second terminal based on the second BWP; and determine the bandwidth of the second terminal based on the first signal strength and the second signal strength.

[0059] The transceiver is used to send indication information corresponding to the first BWP to the second terminal, and to send indication information corresponding to the second BWP to the second terminal.

[0060] This invention sets the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as the first bandwidth when the target terminal completes physical random access; then, it determines the bandwidth of the target terminal based on the first bandwidth. This can accurately identify the frequency band bandwidth supported by the target terminal through the first bandwidth, improve the identification accuracy of the frequency band bandwidth supported by the terminal, and avoid the situation where the terminal fails to establish a service. Attached Figure Description

[0061] Figure 1 This is a schematic diagram of the terminal bandwidth identification device in the hardware operating environment involved in the embodiments of the present invention;

[0062] Figure 2 This is a flowchart illustrating the first embodiment of the terminal bandwidth identification method of the present invention;

[0063] Figure 3 This is a flowchart illustrating an embodiment of the terminal bandwidth identification method of the present invention;

[0064] Figure 4 This is a flowchart illustrating another embodiment of the terminal bandwidth identification method of the present invention;

[0065] Figure 5 This is a schematic diagram of the structure of an embodiment of the network device of the present invention.

[0066] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0067] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0068] like Figure 1 As shown, Figure 1 This is a schematic diagram of the terminal bandwidth identification device in the hardware operating environment involved in the embodiments of the present invention.

[0069] In this embodiment of the invention, the terminal bandwidth identification device can be a communication network device, such as a base station (BS). A base station is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The base station can configure multiple Base Station Wiring Devices (BWPs) for the terminal device to enable the terminal device to support various services. The base station includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home-evolved Node B, or home Node B, HNB), base band unit (BBU), access point (AP), wireless fidelity access point (WiFi AP), and worldwide interoperability for microwave access (WiMAX) BS, etc. For ease of description, in this invention, the above-mentioned devices providing wireless communication functions for terminal devices are collectively referred to as base stations.

[0070] Figure 1 A possible structural diagram of the base station involved in the above embodiments is shown. For example... Figure 1 As shown, a base station 100 includes a transceiver 101, a memory 102, and a processor 103. The memory 102 is used to store instructions. The processor 103, connected to both the memory 102 and the transceiver 101, is used to execute the instructions to perform the steps of the terminal bandwidth identification method in the following embodiments when executing the instructions.

[0071] The present invention also provides a terminal bandwidth identification method, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the terminal bandwidth identification method of the present invention.

[0072] In this embodiment, the terminal bandwidth identification method includes:

[0073] Step S101: When the target terminal completes physical random access, the subset bandwidth BWP corresponding to the data packet to be sent by the target terminal is set as the first bandwidth.

[0074] Step S102: Determine the bandwidth of the target terminal based on the first bandwidth.

[0075] In this embodiment, when the target terminal completes the PRACH (Physical Random Access Channel) process, the base station sets the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as the first bandwidth and sends the indication information corresponding to the first bandwidth to the target terminal. Specifically, the indication information corresponding to the first bandwidth can be sent through an RRC message or through a DCI handover mechanism. When the target terminal receives the indication information corresponding to the first bandwidth, if the target terminal supports the first bandwidth, the target terminal sends the data packet to the base station through the first bandwidth; otherwise, the target terminal cannot send the data packet.

[0076] Next, the base station determines the bandwidth of the target terminal based on the first bandwidth. That is, the base station determines the bandwidth of the target terminal based on the data packets sent by the target terminal through the first bandwidth. Specifically, in one embodiment, step S102 includes:

[0077] Step S1021: If no data packet is received from the target terminal based on the first bandwidth, then the bandwidth of the target terminal is determined to be the target bandwidth corresponding to the first bandwidth.

[0078] In this embodiment, if no data packet is received from the target terminal based on the first bandwidth, the base station determines that the target terminal cannot send data packets through the first bandwidth. In other words, the target terminal does not support the first bandwidth. Therefore, the base station determines that the target terminal's bandwidth is the target bandwidth corresponding to the first bandwidth, thus accurately identifying the frequency band bandwidth supported by the target terminal and preventing service establishment failures when the terminal initiates service establishment. The target bandwidth is the bandwidth of the entire frequency band excluding the first bandwidth. Since the mobile terminal's bandwidth is not continuous, the target bandwidth is either the bandwidth of the largest frequency in the entire frequency band that is greater than the first bandwidth, or the bandwidth of the smallest frequency in the entire frequency band that is less than the first bandwidth. Of course, the target bandwidth must still meet the terminal's bandwidth rules.

[0079] Furthermore, in yet another embodiment, step S102 includes:

[0080] Step S1022: If a data packet based on the first bandwidth feedback from the target terminal is received, then when the terminal type of the target terminal is the target terminal type, the bandwidth of the target terminal is determined to be the full-band bandwidth.

[0081] In this embodiment, when a data packet uploaded by the target terminal is received, since the data packet sent by the target terminal through the first bandwidth can be received, the target terminal supports the first bandwidth. If the current terminal type of the target terminal is the target terminal type, it is determined that the bandwidth of the target terminal is the full-band bandwidth. By determining that the bandwidth of the target terminal is the full-band bandwidth, the frequency band bandwidth supported by the target terminal can be accurately identified, thus avoiding the situation where service establishment fails when the terminal initiates service establishment.

[0082] The target terminal type corresponds to the first bandwidth. Specifically, the bandwidth of the target terminal type includes a first segment bandwidth or a full-band bandwidth. The target bandwidth is the first segment bandwidth, the minimum frequency of the first segment bandwidth is the minimum frequency of the full-band bandwidth, the minimum frequency of the first bandwidth is greater than the maximum frequency of the first segment bandwidth, and the maximum frequency of the first bandwidth is less than or equal to the maximum frequency of the full-band bandwidth; or...

[0083] The bandwidth of the target terminal type includes a second bandwidth or a full-band bandwidth. The target bandwidth is the second bandwidth, the maximum frequency of the second bandwidth is the maximum frequency of the full-band bandwidth, the maximum frequency of the first bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the first bandwidth is greater than or equal to the minimum frequency of the full-band bandwidth.

[0084] Specifically, the first bandwidth ranges from 703MHz to 733MHz, and the second bandwidth ranges from 718MHz to 743MHz. The first bandwidth falls within the range of 733MHz to 743MHz, and the second bandwidth falls within the range of 703MHz to 718MHz; or,

[0085] The first bandwidth ranges from 718MHz to 743MHz, and the second bandwidth ranges from 703MHz to 733MHz. The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

[0086] For example, the full-band bandwidth is 703-743MHz uplink and 758-803MHz downlink. The first bandwidth can be 703-733MHz uplink and 758-788MHz downlink, and the second bandwidth can be 718-743MHz uplink and 773-803MHz downlink. The first bandwidth can be set within the range of 733-743MHz uplink and 788-803MHz downlink. Alternatively, the first bandwidth can be 718-743MHz uplink and 773-803MHz downlink, and the second bandwidth can be 703-733MHz uplink and 758-788MHz downlink. The first bandwidth can be set within the range of 703-718MHz uplink and 758-773MHz downlink.

[0087] It should be noted that when setting the BWP corresponding to the data packet to the first bandwidth, the base station can perform a timing operation. When the timing duration reaches a first preset duration—specifically, when the duration after setting the BWP corresponding to the data packet to the first bandwidth reaches the first preset duration—if no data packet is received, the base station determines that the bandwidth of the target terminal is the first bandwidth segment; if a data packet is received and the duration after setting the BWP corresponding to the data packet to the first bandwidth does not reach the first preset duration, then if the terminal type of the target terminal is the target terminal type, the bandwidth of the target terminal is determined to be the full-band bandwidth. The first preset duration can be set appropriately.

[0088] In this embodiment, after determining that the target terminal's bandwidth is either the first segment bandwidth or the full-band bandwidth, the base station resets the BWP. Specifically, the BWP can be modified according to the determined bandwidth of the target terminal to facilitate subsequent communication between the target terminal and the base station. During the random access process, the target terminal's Initial BWP is configured in the middle 15MHz of the full-band bandwidth to ensure the successful completion of the PRACH process.

[0089] The terminal bandwidth identification method proposed in this embodiment sets the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as the first bandwidth when the target terminal completes physical random access; then, the bandwidth of the target terminal is determined based on the first bandwidth. This method can accurately identify the frequency band bandwidth supported by the target terminal through the first bandwidth, improve the identification accuracy of the frequency band bandwidth supported by the terminal, and avoid the situation where the service establishment fails when the terminal initiates service establishment.

[0090] Based on the first embodiment, a second embodiment of the terminal bandwidth identification method of the present invention is proposed. In this embodiment, after step S103, the terminal bandwidth identification method further includes:

[0091] Step S201: If a data packet is received from the target terminal based on the first bandwidth, the BWP corresponding to the data packet to be sent by the target terminal is set to the second bandwidth.

[0092] Step S202: If a data packet based on the second bandwidth feedback from the target terminal is received, then the bandwidth of the target terminal is determined to be the full-band bandwidth.

[0093] Step S203: If no data packet is received from the target terminal based on the second bandwidth, then the bandwidth of the target terminal is determined to be the second bandwidth segment.

[0094] In this embodiment, when the target terminal completes physical random access, the base station cannot obtain the target terminal type. When receiving the data packet uploaded by the target terminal, since the base station can receive the data packet sent by the target terminal through the first bandwidth, the base station determines that the target terminal supports the first bandwidth. Therefore, it determines that the bandwidth of the target terminal is the full-band bandwidth or the second bandwidth. At this time, the BWP corresponding to the data packet to be sent by the target terminal is set to the second bandwidth, and the base station sends the indication information corresponding to the second bandwidth to the target terminal. Specifically, the indication information corresponding to the second bandwidth can be sent through an RRC message or through a DCI handover mechanism. When the target terminal receives the indication information corresponding to the second bandwidth, if the frequency band bandwidth supported by the target terminal includes the second bandwidth, the target terminal sends the data packet to the base station through the second bandwidth; otherwise, the target terminal cannot send the data packet.

[0095] In this embodiment, when a data packet uploaded by the target terminal is received, since the data packet sent by the target terminal through the second bandwidth can be received, it is determined that the bandwidth of the target terminal is a full-band bandwidth. Therefore, the bandwidth of the target terminal is determined to be a full-band bandwidth, thereby accurately identifying the frequency band bandwidth supported by the target terminal and avoiding the situation where service establishment fails when the terminal initiates service establishment.

[0096] If no data packet is received from the target terminal based on the second bandwidth, it is determined that the target terminal cannot send data packets through the second frequency band. This leads to the determination that the target terminal's bandwidth is the second bandwidth, meaning that the target terminal currently only supports the second bandwidth. This allows for accurate identification of the frequency band bandwidth supported by the target terminal, preventing service establishment failures when the terminal initiates service establishment.

[0097] Wherein, the first bandwidth is in the range of 733MHz to 743MHz, and the second bandwidth is in the range of 703MHz to 718MHz; or,

[0098] The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

[0099] The terminal's bandwidth includes a first-band bandwidth, a second-band bandwidth, and a full-band bandwidth. The minimum frequency of the first-band bandwidth is the same as the minimum frequency of the full-band bandwidth, and the maximum frequency of the second-band bandwidth is the same as the maximum frequency of the full-band bandwidth. The maximum frequency of the first-band bandwidth is greater than the minimum frequency of the second-band bandwidth. The minimum frequency of the first-band bandwidth is greater than the maximum frequency of the first-band bandwidth, and the maximum frequency of the first-band bandwidth is less than or equal to the maximum frequency of the full-band bandwidth. The maximum frequency of the second-band bandwidth is less than the minimum frequency of the second-band bandwidth, and the minimum frequency of the second-band bandwidth is greater than or equal to the minimum frequency of the full-band bandwidth. For example, a current terminal has a full-band bandwidth of 703-743MHz uplink and 758-803MHz downlink; a first-band bandwidth of 703-733MHz uplink and 758-788MHz downlink; and a second-band bandwidth of 718-743MHz uplink and 773-803MHz downlink. The range of the first bandwidth is 733MHz to 743MHz, and the range of the second bandwidth is 703MHz to 718MHz.

[0100] Alternatively, the minimum frequency of the second bandwidth segment is the minimum frequency of the entire bandwidth, the maximum frequency of the first bandwidth segment is the maximum frequency of the entire bandwidth, and the maximum frequency of the second bandwidth segment is greater than the minimum frequency of the first bandwidth segment. The maximum frequency of the first bandwidth segment is less than the minimum frequency of the first bandwidth segment, and the minimum frequency of the first bandwidth segment is greater than or equal to the minimum frequency of the entire bandwidth. The minimum frequency of the second bandwidth segment is greater than the maximum frequency of the second bandwidth segment, and the maximum frequency of the second bandwidth segment is less than or equal to the maximum frequency of the entire bandwidth. For example, the current terminal has an entire bandwidth of 703-743MHz uplink and 758-803MHz downlink; a first bandwidth segment of 718-743MHz uplink and 773-803MHz downlink; and a second bandwidth segment of 703-733MHz uplink and 758-788MHz downlink. The range of the first bandwidth is 703MHz to 718MHz, and the range of the second bandwidth is 733MHz to 743MHz.

[0101] It should be noted that when setting the BWP corresponding to the data packet to the first bandwidth, the base station can perform a timing operation. When the timing duration reaches a second preset duration (i.e., the duration after setting the BWP corresponding to the data packet to the first bandwidth reaches the second preset duration), if no data packet is received, the base station determines that the bandwidth of the target terminal is the first bandwidth. If a data packet is received, and the duration after setting the BWP corresponding to the data packet to the first bandwidth does not reach the second preset duration, then the BWP corresponding to the data packet to be sent by the target terminal is set to the second bandwidth.

[0102] Simultaneously, when setting the BWP corresponding to the data packet to the second bandwidth, the base station can also perform a timing operation. When the timing duration reaches a third preset duration (i.e., the duration after setting the BWP corresponding to the data packet to the second bandwidth reaches the third preset duration), if no data packet is received, the base station determines that the bandwidth of the target terminal is the second bandwidth. If a data packet is received, and the duration after setting the BWP corresponding to the data packet to the second bandwidth does not reach the third preset duration, then the bandwidth of the target terminal is determined to be the full-band bandwidth.

[0103] Both the second and third preset durations can be set appropriately. For example, both the second and third preset durations can be the same as the first preset duration.

[0104] In this embodiment, after determining that the target terminal's bandwidth is the first bandwidth, the second bandwidth, or the full-band bandwidth, the base station resets the BWP. Specifically, the BWP can be modified according to the determined bandwidth of the target terminal to facilitate subsequent communication between the target terminal and the base station. During the random access process, the target terminal's Initial BWP is configured in the middle 15MHz of the full-band bandwidth to ensure the successful completion of the PRACH process.

[0105] The terminal bandwidth identification method proposed in this embodiment sets the BWP corresponding to the data packet to be sent by the target terminal to the second bandwidth if a data packet based on the first bandwidth is received from the target terminal; then, if a data packet based on the second bandwidth is received from the target terminal, the bandwidth of the target terminal is determined to be full-band bandwidth; and then, if no data packet based on the second bandwidth is received from the target terminal, the bandwidth of the target terminal is determined to be a second segment bandwidth. This method can accurately identify whether the frequency band bandwidth supported by the target terminal is the second segment bandwidth or the full-band bandwidth based on the data packet reception when the BWP is the second bandwidth, further improving the accuracy of identifying the frequency band bandwidth supported by the terminal and avoiding service establishment failure when the terminal initiates service establishment.

[0106] Based on the above embodiments, a third embodiment of the terminal bandwidth identification method of the present invention is proposed. In this embodiment, before step S101, the terminal bandwidth identification method further includes:

[0107] Step S301: Configure the first static beam speed SSB and the second SSB, wherein the frequency band bandwidth of the PRACH corresponding to the first SSB is the full bandwidth low end bandwidth, and the frequency band bandwidth of the PRACH corresponding to the second SSB is the full bandwidth high end bandwidth.

[0108] Step S302: If the first information sent by the target terminal based on the low-end bandwidth of the full bandwidth is received, then the terminal type of the target terminal is determined to be the first terminal type;

[0109] Step S303: If the second information sent by the target terminal based on the full bandwidth high-end bandwidth is received, then the terminal type of the target terminal is determined to be the second terminal type;

[0110] In this configuration, the PRACH bandwidth corresponding to the first SSB is the low-end bandwidth of the full bandwidth, and the PRACH bandwidth corresponding to the second SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth is greater than the maximum frequency of the first bandwidth. Furthermore, the low-end bandwidth is less than a preset bandwidth, and the high-end bandwidth is less than a preset bandwidth, which can be 10MHz. For example, if the minimum frequency of the low-end bandwidth is the minimum frequency of the full bandwidth, and the maximum frequency of the high-end bandwidth is the maximum frequency of the full bandwidth, and the full bandwidth is 703-743MHz for uplink and 758-803MHz for downlink, then the low-end bandwidth can be 703-712MHz and the downlink can be 758-767MHz, and the high-end bandwidth can be 739-743MHz for uplink and 794-803MHz for downlink.

[0111] The target terminal type includes a first terminal type and a second terminal type. If the bandwidth of the first terminal type is the first segment bandwidth and the full frequency band bandwidth, then the bandwidth of the second terminal type is the second segment bandwidth and the full frequency band bandwidth; if the bandwidth of the first terminal type is the second segment bandwidth and the full frequency band bandwidth, then the bandwidth of the second terminal type is the first segment bandwidth and the full frequency band bandwidth.

[0112] In this embodiment, before the target terminal performs physical random access, the base station can configure two SSBs, for example, a first SSB and a second SSB. The frequency band bandwidth of the PRACH corresponding to the first SSB is the low end of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the second SSB is the high end of the full bandwidth. That is, the PRACH of the first SSB is configured in the low end of the full bandwidth, and the PRACH of the second SSB is configured in the low end of the full bandwidth. The base station sends broadcast information based on the first SSB and the second SSB. That is, the broadcast information includes the first SSB and the second SSB.

[0113] In this embodiment, after configuring the first SSB and the second SSB, the target terminal can complete the physical random access process with the base station based on the first SSB or the second SSB. Specifically, upon receiving the broadcast information, terminals supporting only the first bandwidth segment perform physical random access based on the first SSB, terminals supporting only the second bandwidth segment perform physical random access based on the second SSB, and terminals supporting the entire bandwidth (simultaneously supporting both the first and second bandwidth segments) perform physical random access based on the second SSB. Furthermore, if the target terminal receives first information (any information sent by the target terminal during the PRACH process) based on the low-end bandwidth of the entire bandwidth, the terminal type of the target terminal is determined to be the first terminal type; if the target terminal receives second information (any information sent by the target terminal during the PRACH process) based on the high-end bandwidth of the entire bandwidth, the terminal type of the target terminal is determined to be the second terminal type.

[0114] The terminal bandwidth identification method proposed in this embodiment configures a first static beamwidth (SSB) and a second SSB. Upon receiving first information from the target terminal based on the low-end bandwidth of the full bandwidth, the terminal type of the target terminal is determined to be a first terminal type. If second information from the target terminal based on the high-end bandwidth of the full bandwidth is received, the terminal type of the target terminal is determined to be a second terminal type. This method can accurately identify the terminal type of the target terminal based on the information sent by the terminal during the PRACH process, further improving the accuracy of identifying the frequency band bandwidth supported by the terminal.

[0115] The present invention also provides a terminal bandwidth identification method, referring to... Figure 3 , Figure 3 This is a flowchart illustrating an embodiment of the terminal bandwidth identification method of the present invention.

[0116] In this embodiment, the terminal bandwidth identification method includes the following steps:

[0117] Step S401: Configure the third static wave velocity SSB and the fourth SSB;

[0118] Step S402: Determine the terminal type of the first terminal based on the third SSB and the fourth SSB.

[0119] Specifically, the PRACH bandwidth corresponding to the third SSB is the low-end bandwidth of the full bandwidth, and the PRACH bandwidth corresponding to the fourth SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth is less than the minimum frequency of the second bandwidth segment, and the minimum frequency of the high-end bandwidth is greater than the maximum frequency of the first bandwidth segment. Furthermore, the low-end bandwidth of the full bandwidth is less than a preset bandwidth, and the high-end bandwidth is less than a preset bandwidth, which can be 10MHz. For example, if the minimum frequency of the low-end bandwidth is the minimum frequency of the full bandwidth, and the maximum frequency of the high-end bandwidth is the maximum frequency of the full bandwidth, and the full bandwidth is 703-743MHz uplink and 758-803MHz downlink, then the low-end bandwidth can be 703-712MHz and the downlink can be 758-767MHz, and the high-end bandwidth can be 739-743MHz uplink and 794-803MHz downlink.

[0120] In this embodiment, before the target terminal performs physical random access, the base station can configure two SSBs, for example, a third SSB and a fourth SSB. The PRACH frequency band bandwidth corresponding to the third SSB is the low end of the full bandwidth, and the PRACH frequency band bandwidth corresponding to the fourth SSB is the high end of the full bandwidth. That is, the PRACH of the third SSB is configured in the low end of the full bandwidth, and the PRACH of the fourth SSB is configured in the low end of the full bandwidth. After completing the configuration of the third and fourth SSBs, the base station sends broadcast information based on the third and fourth SSBs; that is, the broadcast information includes both the third and fourth SSBs. The terminal can complete the physical random access process with the base station based on either the third or fourth SSB. Specifically, upon receiving the broadcast information, terminals that only support the first bandwidth segment perform physical random access based on the third SSB, terminals that only support the second bandwidth segment perform physical random access based on the fourth SSB, and terminals that support the entire frequency band bandwidth (simultaneously supporting both the first and second bandwidth segments) perform physical random access based on the fourth SSB.

[0121] Next, based on the third SSB and the fourth SSB, the terminal type of the first terminal is determined. According to the information fed back by the first terminal during the PRACH process, the terminal type is determined. Specifically, this step S402 includes:

[0122] Step S4021: If the first information sent by the first terminal based on the low-end bandwidth of the full bandwidth is received, then the terminal type of the target terminal is determined to be the first terminal type.

[0123] Step S4022: If the second information sent by the first terminal based on the full bandwidth high-end bandwidth is received, then the terminal type of the target terminal is determined to be the second terminal type.

[0124] The terminal type of the first terminal (target terminal type) includes the first terminal type and the second terminal type. If the bandwidth of the first terminal type is the first segment bandwidth and the full frequency band bandwidth, then the bandwidth of the second terminal type is the second segment bandwidth and the full frequency band bandwidth; if the bandwidth of the first terminal type is the second segment bandwidth and the full frequency band bandwidth, then the bandwidth of the second terminal type is the first segment bandwidth and the full frequency band bandwidth.

[0125] Furthermore, if the first information sent by the first terminal based on the low end of the full bandwidth (any information sent by the target terminal during the PRACH process) is received, the terminal type of the first terminal is determined to be the first terminal type; if the second information sent by the first terminal based on the high end of the full bandwidth (any information sent by the target terminal during the PRACH process) is received, the terminal type of the first terminal is determined to be the second terminal type, and thus the terminal type of the first terminal can be accurately obtained based on the information fed back by the first terminal during the PRACH process.

[0126] It should be noted that when obtaining the terminal type of the first terminal, the first terminal can be used as the target terminal, and the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal can be set as the first bandwidth. If no data packet is received from the target terminal based on the first bandwidth, the bandwidth of the target terminal is determined to be the target bandwidth corresponding to the first bandwidth. If a data packet is received from the target terminal based on the first bandwidth, and the terminal type of the target terminal is the target terminal type, the bandwidth of the target terminal is determined to be the full-band bandwidth, thereby accurately identifying the bandwidth of the first terminal. The settings of the target terminal type, target bandwidth, first bandwidth, and first bandwidth segment are the same as in the first embodiment, and will not be repeated here.

[0127] The terminal bandwidth identification method proposed in this embodiment configures a third static beamwidth SSB and a fourth SSB; then, based on the third SSB and the fourth SSB, it determines the terminal type of the first terminal; it can accurately identify the terminal type of the target terminal according to the information sent by the terminal during the PRACH process, and further improve the identification accuracy of the frequency band bandwidth supported by the terminal.

[0128] The present invention also provides a terminal bandwidth identification method, referring to... Figure 4 , Figure 4 This is a flowchart illustrating another embodiment of the terminal bandwidth identification method of the present invention.

[0129] In this embodiment, the terminal bandwidth identification method includes the following steps:

[0130] Step S501: Set the BWP of the second terminal to the first BWP, and obtain the first signal strength of the reference signal reported by the second terminal based on the first BWP.

[0131] Step S502: Set the BWP of the second terminal to the second BWP, and obtain the second signal strength of the reference signal reported by the second terminal based on the second BWP;

[0132] Step S503: Determine the bandwidth of the second terminal based on the first signal strength and the second signal strength.

[0133] In this embodiment, the base station is pre-configured with two BWPs (Bandwidth Parts), namely a first BWP and a second BWP. The minimum frequency of the first BWP is the minimum frequency of the full-band bandwidth, and the maximum frequency of the first BWP is less than the maximum frequency of the full-band bandwidth. The minimum frequency of the second BWP is greater than the minimum frequency of the full-band bandwidth, and the maximum frequency of the second BWP is the maximum frequency of the full-band bandwidth.

[0134] The base station sets the BWP of the second terminal to the first BWP and obtains the first signal strength of the reference signal reported by the second terminal based on the first BWP. Specifically, after setting the first BWP, the base station sends the indication information corresponding to the first BWP to the second terminal. Specifically, the indication information corresponding to the first BWP can be sent through an RRC message or through a DCI handover mechanism. When the second terminal receives the indication information corresponding to the first BWP, the second terminal reports reference signals (uplink reference signals or downlink reference signals) through each frequency band in the first BWP. The reference signals include SRS, CSI-RS, etc. When the base station receives each reference signal (first reference signal) reported by the second terminal through the first BWP, it determines the first signal strength through the signal strength of each reference signal. For example, the average signal strength of multiple first reference signals can be used as the first signal strength, or the sum of the signal strengths of the first reference signals can be used as the first signal strength.

[0135] Next, the base station sets the BWP of the second terminal as the second BWP and sends the indication information corresponding to the second BWP to the second terminal. Specifically, the indication information corresponding to the second BWP can be sent through an RRC message or through the DCI handover mechanism. When the second terminal receives the indication information corresponding to the second BWP, the second terminal reports reference signals (uplink reference signals or downlink reference signals) through each frequency band in the second BWP. When the base station receives each reference signal (second reference signal) reported by the second terminal through the second BWP, it determines the second signal strength through the signal strength of each reference signal. The first signal strength corresponds to the second signal strength, that is, both the first reference signal and the second reference signal are uplink reference signals or both are downlink reference signals. When the first signal strength is an average value, the second signal strength is the average of the signal strengths of multiple second reference signals. When the first reference signal is a sum value, the second signal strength is the sum of the signal strengths of the second reference signals.

[0136] Then, the base station determines the bandwidth of the second terminal based on the first signal strength and the second signal strength. By accurately determining the frequency band bandwidth supported by the second terminal according to the reference signal strengths corresponding to the two BWPs, the base station can accurately identify the frequency band bandwidth supported by the terminal. Specifically, step S503 includes:

[0137] Step S531: Obtain the absolute difference between the first signal strength and the second signal strength;

[0138] Step S532: Determine the bandwidth of the second terminal based on the absolute difference.

[0139] In this embodiment, the absolute difference is the absolute value of the difference between the first signal strength and the second signal strength. The bandwidth of the second terminal can be determined by this absolute difference, thereby improving the accuracy of the bandwidth identification of the second terminal.

[0140] Further, in one embodiment, step S532 includes:

[0141] Step S5321: If the absolute difference is less than or equal to a preset difference, then the bandwidth of the second terminal is determined to be the full-band bandwidth.

[0142] Step S5322: If the absolute difference is greater than a preset difference, then determine whether the first signal strength is greater than the second signal strength.

[0143] Step S5323: If the first signal strength is greater than the second signal strength, then the bandwidth of the second terminal is determined to be the first segment bandwidth;

[0144] Step S5324: If the first signal strength is less than the second signal strength, then determine that the bandwidth of the second terminal is the second segment bandwidth;

[0145] Wherein, the maximum frequency of the first bandwidth segment is less than the maximum frequency of the second bandwidth segment, the minimum frequency of the first bandwidth segment is the minimum frequency of the full-band bandwidth, and the maximum frequency of the second bandwidth segment is the maximum frequency of the full-band bandwidth; the bandwidth of the first BWP is within the range of the first bandwidth segment, and the maximum frequency of the first BWP is greater than the minimum frequency of the second bandwidth segment; the bandwidth of the second BWP is within the range of the second bandwidth segment, and the minimum frequency of the second BWP is less than the maximum frequency of the first bandwidth segment.

[0146] In this embodiment, when the absolute difference is obtained, a preset difference is obtained, and it is determined whether the absolute difference is less than or equal to the preset difference. If the absolute difference is less than or equal to the preset difference, it is determined that the first signal strength and the second signal strength are similar, and then it is determined that the reference signal reported by the second terminal can be received in the entire frequency band, that is, the bandwidth of the second terminal is determined to be the full frequency band bandwidth.

[0147] If the absolute difference is greater than a preset difference, then it is further determined whether the first signal strength is greater than the second signal strength. If the first signal strength is greater than the second signal strength, and the first signal strength of the reference signal reported by the second terminal based on the first BWP is larger, then it is determined that the second terminal reports more reference signals through the first BWP, and thus it is determined that the bandwidth of the second terminal is the first bandwidth, that is, the second terminal only supports the first bandwidth.

[0148] If the first signal strength is less than the second signal strength, and the second signal strength of the reference signal reported by the second terminal based on the second BWP is greater, it is determined that the second terminal reports more reference signals through the second BWP, and thus the bandwidth of the second terminal is determined to be the second bandwidth segment, that is, the second terminal only supports the second bandwidth segment.

[0149] This embodiment can accurately determine the frequency band bandwidth supported by the second terminal based on the absolute difference, the first signal strength, and the second signal strength, thereby improving the accuracy of identifying the frequency band bandwidth supported by the terminal.

[0150] It should be noted that the preset difference can be set reasonably. For example, the preset difference can be 0, or the preset difference can be set according to the first signal strength and the second signal strength. For example, the preset difference = (first signal strength + second signal strength) / 4.

[0151] In this embodiment, after determining that the bandwidth of the target terminal is the first bandwidth, the second bandwidth, or the full-band bandwidth, the base station resets the BWP. Specifically, the BWP can be modified according to the determined bandwidth of the target terminal to facilitate subsequent communication between the target terminal and the base station.

[0152] The terminal bandwidth identification method proposed in this embodiment sets the BWP of the second terminal to the first BWP and obtains the first signal strength of the reference signal reported by the second terminal based on the first BWP; then sets the BWP of the second terminal to the second BWP and obtains the second signal strength of the reference signal reported by the second terminal based on the second BWP; then, based on the first signal strength and the second signal strength, the bandwidth of the second terminal is determined. This method can accurately obtain the frequency band bandwidth supported by the terminal based on the first signal strength and the second signal strength, thereby accurately identifying the frequency band bandwidth supported by the target terminal, improving the accuracy of identifying the frequency band bandwidth supported by the terminal, and avoiding service establishment failure when the terminal initiates service establishment.

[0153] The present invention further provides an apparatus embodiment for implementing the steps and methods in the above method embodiments. Figure 5 A possible structural diagram of the network device involved in the above embodiments is shown.

[0154] like Figure 5 As shown, the network device 200 includes a transceiver 201 and a processor 202. The processor 201 is connected to the transceiver 202 and is used to execute instructions to perform the following steps when executing instructions: when the target terminal completes physical random access, the processor 201 sets the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as a first bandwidth; and generates indication information corresponding to the first bandwidth; and sends the indication information corresponding to the first bandwidth to the target terminal through the transceiver 202, wherein if the target terminal supports the first bandwidth, the target terminal operates on the first bandwidth; and the processor 201 allocates the frequency band bandwidth of the target terminal according to the feedback received on the first bandwidth.

[0155] Optionally, the processor 201 determines the bandwidth of the target terminal based on the feedback received on the first bandwidth.

[0156] Optionally, if the transceiver 202 does not receive the data packet fed back by the target terminal based on the first bandwidth, the processor 201 determines that the bandwidth of the target terminal is the target bandwidth corresponding to the first bandwidth.

[0157] Optionally, if the transceiver 202 receives a data packet from the target terminal based on the first bandwidth feedback, then when the terminal type of the target terminal is the target terminal type, the processor 201 determines that the bandwidth of the target terminal is the full-band bandwidth.

[0158] Wherein, the bandwidth of the target terminal type includes a first segment bandwidth or a full-band bandwidth, the target bandwidth corresponding to the first bandwidth is the first segment bandwidth, the minimum frequency of the first segment bandwidth is the minimum frequency of the full-band bandwidth, the minimum frequency of the first bandwidth is greater than the maximum frequency of the first segment bandwidth, and the maximum frequency of the first bandwidth is less than or equal to the maximum frequency of the full-band bandwidth; or...

[0159] The bandwidth of the target terminal type includes a second bandwidth or a full-band bandwidth. The target bandwidth corresponding to the first bandwidth is the second bandwidth. The maximum frequency of the second bandwidth is the maximum frequency of the full-band bandwidth. The maximum frequency of the first bandwidth is less than the minimum frequency of the second bandwidth. The minimum frequency of the first bandwidth is greater than or equal to the minimum frequency of the full-band bandwidth.

[0160] Optionally, if the transceiver 202 receives a data packet from the target terminal based on the first bandwidth, the processor 201 sets the BWP corresponding to the data packet to be sent by the target terminal to the second bandwidth.

[0161] Transceiver 202 sends indication information corresponding to the second bandwidth to the target terminal, wherein if the target terminal supports the second bandwidth, the target terminal operates on the second bandwidth;

[0162] If the transceiver 202 receives a data packet from the target terminal based on the second bandwidth feedback, the processor 201 determines that the bandwidth of the target terminal is the full-band bandwidth;

[0163] If the transceiver 202 does not receive the data packet fed back by the target terminal based on the second bandwidth, the processor 201 determines that the bandwidth of the target terminal is the second bandwidth segment.

[0164] Wherein, the first bandwidth is in the range of 733MHz to 743MHz, and the second bandwidth is in the range of 703MHz to 718MHz; or,

[0165] The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

[0166] Optionally, the processor 201 is configured with a first static wave speed SSB and a second SSB;

[0167] Transceiver 201 transmits broadcast information based on the third SSB and the fourth SSB;

[0168] If transceiver 202 receives the first information sent by the target terminal based on the full bandwidth low end bandwidth, then processor 201 determines that the terminal type of the target terminal is the first terminal type;

[0169] If transceiver 202 receives the second information sent by the target terminal based on the full bandwidth high-end bandwidth, then processor 201 determines that the terminal type of the target terminal is the second terminal type;

[0170] Among them, the frequency band bandwidth of the PRACH corresponding to the first SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the second SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

[0171] Furthermore, the present invention also provides a network device, comprising: a processor and a transceiver, wherein,

[0172] The processor is used to configure the third static wave speed SSB and the fourth SSB; and to determine the terminal type of the first terminal based on the feedback corresponding to the third SSB or the fourth SSB.

[0173] A transceiver is used to transmit broadcast information based on the third SSB and the fourth SSB;

[0174] Among them, the frequency band bandwidth of the PRACH corresponding to the third SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the fourth SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

[0175] Optionally, if the transceiver receives the first information sent by the first terminal based on the low-end bandwidth of the full bandwidth, then the terminal type of the target terminal is determined to be the first terminal type;

[0176] If the transceiver receives the second information sent by the first terminal based on the full bandwidth high-end bandwidth, the processor determines that the terminal type of the target terminal is the second terminal type.

[0177] Furthermore, the present invention also provides a network device, comprising: a processor and a transceiver, wherein,

[0178] The processor is configured to set the BWP of the second terminal to the first BWP, and obtain a first signal strength of the reference signal reported by the second terminal based on the first BWP; set the BWP of the second terminal to the second BWP, and obtain a second signal strength of the reference signal reported by the second terminal based on the second BWP; and determine the bandwidth of the second terminal based on the first signal strength and the second signal strength.

[0179] The transceiver is used to send indication information corresponding to the first BWP to the second terminal, and to send indication information corresponding to the second BWP to the second terminal.

[0180] Specifically, the processor sets the BWP of the second terminal to the first BWP, the transceiver sends the indication information corresponding to the first BWP to the second terminal, the transceiver receives the reference signal reported by the second terminal based on the first BWP, and the processor obtains the first signal strength of the reference signal reported by the second terminal based on the first BWP.

[0181] The processor sets the BWP of the second terminal as the second BWP, the transceiver sends the indication information corresponding to the second BWP to the second terminal, the transceiver receives the reference signal reported by the second terminal based on the second BWP, and the processor obtains the second signal strength of the reference signal reported by the second terminal based on the second BWP.

[0182] The processor determines the bandwidth of the second terminal based on the first signal strength and the second signal strength.

[0183] Optionally, the processor obtains the absolute difference between the first signal strength and the second signal strength; and determines the bandwidth of the second terminal based on the absolute difference.

[0184] Optionally, if the absolute difference is less than or equal to a preset difference, the processor determines that the bandwidth of the second terminal is the full-band bandwidth.

[0185] If the absolute difference is greater than a preset difference, the processor determines whether the first signal strength is greater than the second signal strength.

[0186] If the first signal strength is greater than the second signal strength, the processor determines that the bandwidth of the second terminal is the first segment bandwidth;

[0187] If the first signal strength is less than the second signal strength, the processor determines that the bandwidth of the second terminal is the second segment bandwidth;

[0188] Wherein, the maximum frequency of the first bandwidth segment is less than the maximum frequency of the second bandwidth segment, the minimum frequency of the first bandwidth segment is the minimum frequency of the full-band bandwidth, and the maximum frequency of the second bandwidth segment is the maximum frequency of the full-band bandwidth; the bandwidth of the first BWP is within the range of the first bandwidth segment, and the maximum frequency of the first BWP is greater than the minimum frequency of the second bandwidth segment; the bandwidth of the second BWP is within the range of the second bandwidth segment, and the minimum frequency of the second BWP is less than the maximum frequency of the first bandwidth segment.

[0189] In addition, the present invention also provides a readable storage medium.

[0190] The present invention stores a terminal bandwidth identification program on a readable storage medium, which, when executed by a processor, implements the steps of the terminal bandwidth identification method described above.

[0191] The method implemented when the terminal bandwidth identification program running on the processor is executed can be referred to in various embodiments of the terminal bandwidth identification method of the present invention, and will not be repeated here.

[0192] Furthermore, this embodiment of the invention also proposes a computer program product, which includes a terminal bandwidth identification program. When the terminal bandwidth identification program is executed by a processor, it implements the steps of the terminal bandwidth identification method described above.

[0193] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0194] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0195] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0196] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A terminal bandwidth identification method, characterized in that, The terminal bandwidth identification method includes: When the target terminal completes physical random access, the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal is set as the first bandwidth. The bandwidth of the target terminal is determined based on the first bandwidth. If no data packet is received from the target terminal based on the first bandwidth, the bandwidth of the target terminal is determined to be the target bandwidth corresponding to the first bandwidth. The target bandwidth is the bandwidth other than the first bandwidth in the full frequency band bandwidth. The step of determining the bandwidth of the target terminal based on the first bandwidth further includes: If a data packet is received from the target terminal based on the first bandwidth, then when the terminal type of the target terminal is the target terminal type, the bandwidth of the target terminal is determined to be the full-band bandwidth, wherein the bandwidth of the target terminal type includes the first segment bandwidth or the full-band bandwidth, or the bandwidth of the target terminal type includes the second segment bandwidth or the full-band bandwidth. The first bandwidth ranges from 703MHz to 733MHz, and the second bandwidth ranges from 718MHz to 743MHz. The first bandwidth is in the range of 733MHz to 743MHz, and the second bandwidth is in the range of 703MHz to 718MHz.

2. The terminal bandwidth identification method as described in claim 1, characterized in that, If the bandwidth of the target terminal type includes a first segment bandwidth or a full-band bandwidth, then the target bandwidth corresponding to the first bandwidth is the first segment bandwidth, the minimum frequency of the first segment bandwidth is the minimum frequency of the full-band bandwidth, the minimum frequency of the first bandwidth is greater than the maximum frequency of the first segment bandwidth, and the maximum frequency of the first bandwidth is less than or equal to the maximum frequency of the full-band bandwidth.

3. The terminal bandwidth identification method as described in claim 1, characterized in that, If the bandwidth of the target terminal type includes a second bandwidth or a full-band bandwidth, then the target bandwidth corresponding to the first bandwidth is the second bandwidth, the maximum frequency of the second bandwidth is the maximum frequency of the full-band bandwidth, the maximum frequency of the first bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the first bandwidth is greater than or equal to the minimum frequency of the full-band bandwidth.

4. The terminal bandwidth identification method as described in claim 3, characterized in that, The first bandwidth ranges from 718MHz to 743MHz, and the second bandwidth ranges from 703MHz to 733MHz. The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

5. The terminal bandwidth identification method as described in claim 1, characterized in that, The target bandwidth is a first segment of bandwidth, and the step of determining the bandwidth of the target terminal based on the first bandwidth further includes: If a data packet is received from the target terminal based on the first bandwidth, the BWP corresponding to the data packet to be sent by the target terminal is set to the second bandwidth. If a data packet is received from the target terminal based on the second bandwidth feedback, then the bandwidth of the target terminal is determined to be the full-band bandwidth; If no data packet is received from the target terminal based on the second bandwidth, then the bandwidth of the target terminal is determined to be the second bandwidth segment.

6. The terminal bandwidth identification method as described in claim 5, characterized in that, The first bandwidth is in the range of 733MHz to 743MHz, and the second bandwidth is in the range of 703MHz to 718MHz; or, The first bandwidth is in the range of 703MHz to 718MHz, and the second bandwidth is in the range of 733MHz to 743MHz.

7. The terminal bandwidth identification method according to any one of claims 1 to 6, characterized in that, Before the step of setting the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as the first bandwidth when the target terminal completes physical random access, the terminal bandwidth identification method further includes: Configure the first static wave velocity SSB and the second SSB; If the first information sent by the target terminal based on the low end of the full bandwidth is received, then the terminal type of the target terminal is determined to be the first terminal type; If the second information sent by the target terminal based on the full bandwidth high-end bandwidth is received, then the terminal type of the target terminal is determined to be the second terminal type; Among them, the frequency band bandwidth of the PRACH corresponding to the first SSB is the low-end bandwidth of the full bandwidth, and the frequency band bandwidth of the PRACH corresponding to the second SSB is the high-end bandwidth of the full bandwidth. The maximum frequency of the low-end bandwidth of the full bandwidth is less than the minimum frequency of the second bandwidth, and the minimum frequency of the high-end bandwidth of the full bandwidth is greater than the maximum frequency of the first bandwidth.

8. A terminal bandwidth identification device, characterized in that, The terminal bandwidth identification device includes: a memory, a processor, and a terminal bandwidth identification program stored in the memory and executable on the processor. When the terminal bandwidth identification program is executed by the processor, it implements the steps of the terminal bandwidth identification method as described in any one of claims 1 to 7.

9. A readable storage medium, characterized in that, The readable storage medium stores a terminal bandwidth identification program, which, when executed by a processor, implements the steps of the terminal bandwidth identification method as described in any one of claims 1 to 7.

10. A network device, characterized in that, The network device includes: The processor is configured to, upon detecting that a target terminal has completed physical random access, set the subset bandwidth (BWP) corresponding to the data packet to be sent by the target terminal as a first bandwidth; and allocate the frequency band bandwidth of the target terminal based on feedback received on the first bandwidth, wherein if no data packet is received from the target terminal based on the first bandwidth, the bandwidth of the target terminal is determined to be the target bandwidth corresponding to the first bandwidth, wherein the target bandwidth is the bandwidth other than the first bandwidth in the full frequency band bandwidth; if a data packet is received from the target terminal based on the first bandwidth, and if the terminal type of the target terminal is a target terminal type, the bandwidth of the target terminal is determined to be the full frequency band bandwidth, wherein the bandwidth of the target terminal type includes a first segment bandwidth or the full frequency band bandwidth, or the bandwidth of the target terminal type includes a second segment bandwidth or the full frequency band bandwidth; A transceiver is used to send indication information corresponding to the first bandwidth to the target terminal; The first bandwidth ranges from 703MHz to 733MHz, and the second bandwidth ranges from 718MHz to 743MHz. The first bandwidth is in the range of 733MHz to 743MHz, and the second bandwidth is in the range of 703MHz to 718MHz.

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