CN117835349A

CN117835349A - Partial bandwidth BWP switching method, device and network equipment

Info

Publication number: CN117835349A
Application number: CN202211193350.5A
Authority: CN
Inventors: 董海红; 王超
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2024-04-05

Abstract

The embodiment of the application provides a partial bandwidth BWP switching method, a device and network equipment, and relates to the technical field of communication. The partial bandwidth BWP switching method comprises the following steps: acquiring the number of terminals and the service load condition carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP; and controls a part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals carried on the preset BWP and the traffic load situation. In this way, the preset BWP is integrated, and the terminal is controlled to switch the BWP in combination with the number of terminals and the service load condition carried on the preset BWP, so that the spectrum resources on the BWP can be effectively utilized, the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, and the utilization rate of the spectrum resources on the BWP is improved.

Description

Partial bandwidth BWP switching method, device and network equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a network device for switching a partial bandwidth BWP.

Background

The New Radio (NR) introduces the concept of a partial Bandwidth (BWP) and the terminal may transmit control information or service data through a spectrum resource on the BWP.

In the prior art, network devices mainly allocate corresponding BWP to terminals according to their service data volumes. For example, when the traffic data volume of the terminal is smaller or there is no data transmission requirement, a BWP with a smaller bandwidth may be configured for the terminal, so that the terminal transmits control information or traffic data through spectrum resources on the smaller bandwidth, so as to achieve the purpose of saving power; when the traffic data volume of the terminal becomes larger, the control terminal is switched to the large bandwidth BWP, so that the terminal transmits control information or traffic data through the spectrum resource on the large bandwidth BWP to meet the traffic data volume requirement.

However, with the above method, the spectrum resources on BWP cannot be effectively utilized, resulting in low utilization of the spectrum resources on BWP.

Disclosure of Invention

The embodiment of the application provides a partial bandwidth BWP switching method, device and network equipment, which are used for solving the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art, and improving the low utilization rate of the spectrum resources on the BWP.

In a first aspect, an embodiment of the present application provides a partial bandwidth BWP switching method, applied to a network device, where the method includes:

acquiring the number of terminals and the service load condition carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP.

And controlling part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of the terminals carried on the preset BWP and the service load condition.

Optionally, according to a method for switching the partial bandwidth BWP according to an embodiment of the present application, the traffic load condition includes an uplink physical resource block utilization and/or a downlink physical resource block utilization carried on the preset BWP.

Optionally, according to a partial bandwidth BWP switching method of one embodiment of the present application, the preset BWP is a source BWP, and controlling, according to the number of terminals and traffic load conditions carried on the preset BWP, switching of part of terminals in the source BWP from the source BWP to the target BWP includes:

and comparing the uplink physical resource block utilization rate with an uplink physical resource block utilization rate threshold value and/or comparing the downlink physical resource block utilization rate with a downlink physical resource block utilization rate threshold value under the condition that the number of the terminals is larger than the terminal number threshold value.

And controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than an uplink physical resource block utilization rate threshold and/or the downlink physical resource block utilization rate is larger than a downlink physical resource block utilization rate threshold.

comparing the uplink physical resource block utilization rate with a first difference value and/or comparing the downlink physical resource block utilization rate with a second difference value under the condition that the number of the terminals is larger than the difference value between the terminal number threshold and the terminal number tolerance; the first difference value is a difference value between the uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the second difference value is a difference value between the downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance.

And controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than the first difference value and/or the downlink physical resource block utilization rate is larger than the second difference value.

Optionally, according to a partial bandwidth BWP switching method of one embodiment of the present application, the preset BWP is a target BWP, and controlling, according to the number of terminals and traffic load conditions carried on the preset BWP, switching of part of terminals in the source BWP from the source BWP to the target BWP includes:

And controlling part of terminals in the source BWP to be switched from the source BWP to the target BWP under the condition that the number of the terminals is smaller than a terminal number threshold, the uplink physical resource block utilization rate is smaller than an uplink physical resource block utilization rate threshold and the downlink physical resource block utilization rate is smaller than a downlink physical resource block utilization rate threshold.

and controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the number of terminals is smaller than a difference value of a terminal number threshold and a terminal number tolerance, the uplink physical resource block utilization rate is smaller than a third difference value, and the downlink physical resource block utilization rate is smaller than a fourth difference value.

The third difference value is a difference value between the uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the fourth difference value is a difference value between the downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance.

Optionally, according to a partial bandwidth BWP switching method of one embodiment of the present application, the preset BWP is a source BWP, and the controlling the switching of the partial terminals in the source BWP from the source BWP to the target BWP includes:

a target terminal that finally enters the source BWP is selected from among the plurality of terminals carried by the source BWP.

The target terminal is controlled to switch from the source BWP to the target BWP.

Optionally, according to an embodiment of the present application, the method for switching the partial bandwidth BWP further includes:

and under the condition that the access of the new terminal is determined, acquiring the quantity of the terminals and the service load condition carried on the preset BWP.

And controlling the new terminal to execute BWP access operation according to the number of the terminals and the service load condition.

In a second aspect, embodiments of the present application provide a network device including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

Optionally, according to the network device of one embodiment of the present application, the traffic load situation includes an uplink physical resource block utilization and/or a downlink physical resource block utilization carried on the preset BWP.

Optionally, according to the network device of one embodiment of the present application, the preset BWP is a source BWP, and the controlling, according to the number of terminals and the traffic load situation carried on the preset BWP, switching of part of terminals in the source BWP from the source BWP to the target BWP includes:

Optionally, according to the network device of one embodiment of the present application, the preset BWP is a target BWP, and the controlling, according to the number of terminals and the traffic load situation carried on the preset BWP, switching of part of terminals in the source BWP from the source BWP to the target BWP includes:

Optionally, according to the network device of one embodiment of the present application, the preset BWP is a source BWP, and the controlling the part of terminals in the source BWP to switch from the source BWP to the target BWP includes:

Optionally, according to one embodiment of the present application, the network device further performs the following operations:

In a third aspect, an embodiment of the present application provides a partial bandwidth BWP switching device, applied to a network device, where the device includes:

a first obtaining unit, configured to obtain the number of terminals and the service load situation carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP.

And a first control unit, configured to control, according to the number of terminals and the traffic load situation carried on the preset BWP, switching of part of the terminals in the source BWP from the source BWP to the target BWP.

In a fourth aspect, embodiments of the present application further provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps of the partial bandwidth BWP switching method according to the first aspect as described above.

The method, the device and the network equipment for switching the partial bandwidth BWP provided by the embodiment of the application acquire the number of terminals and the service load condition carried on the preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP; and controls a part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals carried on the preset BWP and the traffic load situation. In this way, the preset BWP is integrated, and the terminal is controlled to switch the BWP in combination with the number of terminals and the service load condition carried on the preset BWP, so that the spectrum resources on the BWP can be effectively utilized, the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, and the utilization rate of the spectrum resources on the BWP is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flow chart of a partial bandwidth BWP switching method according to an embodiment of the present application;

fig. 2 is a schematic diagram of a control terminal switching from a small bandwidth BWP to a large bandwidth BWP according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating a control terminal switching from a small bandwidth BWP to a large bandwidth BWP according to an embodiment of the present application;

fig. 4 is a schematic diagram of a control terminal switching from a large bandwidth BWP to a small bandwidth BWP according to an embodiment of the present application;

fig. 5 is a schematic diagram of a control terminal switching from a large bandwidth BWP to a small bandwidth BWP according to an embodiment of the present application;

fig. 6 is one of schematic diagrams for controlling a new terminal to perform an access operation of BWP according to an embodiment of the present application;

fig. 7 is a second schematic diagram of an access operation for controlling a new terminal to perform BWP according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a partial bandwidth BWP switching device according to an embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relationship of the association objects, which means that three relationships may exist, for example, a and/or B may be represented: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal according to the embodiment of the application may be a device for providing voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of terminals may also be different in different systems, for example in a 5G system, a terminal may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

For example, in embodiments of the present application, multiple input Multiple output (Multi Input Multi Output, MIMO) transmission may be performed between the network device and the terminal device, each using one or more antennas, and the MIMO transmission may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

At present, the types of terminals are rich, for example, except mobile phones, various intelligent water meters, electric meters, unmanned aerial vehicles, automatic driving automobiles and other internet of things terminals can be further included, when the internet of things terminals process related services, higher downloading speed is not needed, even a plurality of internet of things terminals belong to low-end 5G internet of things terminals, if all terminals are forced to support large bandwidth, the large bandwidth means high sampling rate, the high sampling rate means high power consumption, and the electricity saving of the terminals is not facilitated. Therefore, the concept of BWP is introduced in NR, and a terminal may transmit control information or traffic data through spectrum resources on BWP.

In the prior art, network devices mainly allocate BWP of corresponding bandwidth to terminals according to traffic data volumes of the terminals. For example, when the traffic data volume of the terminal is smaller or there is no data transmission requirement, a BWP with a smaller bandwidth may be configured for the terminal, so that the terminal transmits control information or traffic data through the spectrum resource on the BWP with the smaller bandwidth, so as to achieve the purpose of saving power; when the traffic data volume of the terminal becomes larger, the control terminal is switched to the large bandwidth BWP, so that the terminal transmits control information or traffic data through the spectrum resource on the large bandwidth BWP to meet the traffic data volume requirement.

However, with the above method, when the traffic data volume is relatively small or there is no data transmission requiring a relatively large number of terminals, the terminals may crowd onto the BWP with small bandwidth, resulting in limited spectrum resources on the BWP with small bandwidth; and the part of spectrum resources on the large bandwidth BWP have a blank space, so that the spectrum resources are wasted. Therefore, the spectrum resources on BWP cannot be effectively utilized, resulting in low utilization of the spectrum resources on BWP.

In order to effectively utilize the spectrum resources on the BWP, it may be considered that whether to switch a part of the terminals on the large bandwidth BWP to the small bandwidth BWP or whether to switch a part of the terminals on the small bandwidth BWP to the large bandwidth BWP is determined together according to the number of terminals and traffic load conditions carried on the BWP as a whole, so that the use ratio of the spectrum resources on the BWP can be improved while ensuring user experience.

Based on the above consideration, the embodiment of the application provides a partial bandwidth BWP switching method, which obtains the number of terminals and the service load situation carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP; and controls a part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals carried on the preset BWP and the traffic load situation. In this way, the preset BWP is integrated, and the terminal is controlled to switch the BWP in combination with the number of terminals and the service load condition carried on the preset BWP, so that the spectrum resources on the BWP can be effectively utilized, the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, and the utilization rate of the spectrum resources on the BWP is improved.

Wherein, the full bandwidth may be understood as a large bandwidth BWP, and the partial bandwidth BWP in the full bandwidth may be understood as a small bandwidth BWP. I.e. in the embodiment of the present application, the preset BWP is always a small bandwidth BWP.

In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Fig. 1 is a flow chart of a partial bandwidth BWP switching method according to an embodiment of the present application, where the partial bandwidth BWP switching method may be applied to a network device, for example, a base station. For example, referring to fig. 1, the partial bandwidth BWP switching method includes:

s101, acquiring the number of terminals and the service load condition carried on a preset BWP; the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP.

Wherein, the preset BWP is a small bandwidth BWP. In the embodiment of the present application, if the preset BWP is a source BWP, it may be understood that the source BWP is a small bandwidth BWP and the target BWP is a large bandwidth BWP; if the preset BWP is the target BWP, it can be understood that the target BWP is the small bandwidth BWP and the source BWP is the large bandwidth BWP.

For example, in the embodiment of the present application, the traffic load situation may include a preset uplink physical resource block utilization rate and/or a downlink physical resource block utilization rate carried on BWP, which may be specifically set according to actual needs.

After the number of terminals and the traffic load situation carried on the preset BWP are obtained through the step S101, the preset BWP may be integrated, and the terminals are controlled to perform BWP handover in combination with the number of terminals and the traffic load situation carried on the preset BWP, that is, the following step S102 is performed:

S102, according to the number of terminals carried on the preset BWP and the service load condition, controlling part of terminals in the source BWP to switch from the source BWP to the target BWP.

For example, when controlling a partial terminal in BWP to switch from source BWP to target BWP, radio resource control (radio resource control, RRC) signaling or downlink control information (downlink control information, DCI) may be transmitted to the partial terminal that needs to perform BWP switching; wherein, the RRC signaling or DCI includes the identification of the target BWP; correspondingly, a part of the terminals are switched from the source BWP to the target BWP according to the identifier of the target BWP, and the part of the content belongs to the 3GPP protocol standard flow, and herein, the embodiments of the present application will not be described in detail.

It can be seen that, in the embodiment of the present application, the number of terminals and the service load condition carried on the preset BWP are obtained; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP; and controls a part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals carried on the preset BWP and the traffic load situation. In this way, the preset BWP is integrated, and the terminal is controlled to switch the BWP in combination with the number of terminals and the service load condition carried on the preset BWP, so that the spectrum resources on the BWP can be effectively utilized, the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, and the utilization rate of the spectrum resources on the BWP is improved.

It should be noted that, in the case where both the existing BWP switching method and the BWP switching method provided in the embodiment of the present application are available, a function switch may be preset to control whether to perform BWP switching according to the BWP switching method provided in the embodiment of the present application. If the function switch is closed, the terminal is controlled to execute BWP switching according to the existing BWP switching method; if the function switch is turned on, the control terminal performs BWP switching according to the BWP switching method provided in the embodiment of the present application. The existing BWP switching method refers to performing BWP switching according to the traffic data volume of the terminal.

Based on the embodiment shown in fig. 1, in order to facilitate understanding how to control the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP in S102, hereinafter, how to control the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP will be described in detail in conjunction with the following two different switching scenarios.

Before describing two switching scenes in detail, the related parameters are calibrated. For example, in the embodiment of the present application, the number of terminals carried on the small bandwidth BWP may be denoted as nrCellUeNumOnSmallBwp, the small bandwidth BWP uplink physical resource block (Pysical Resource Block, PRB) utilization may be denoted as nrcellueprbusageonsmallbwp, the small bandwidth BWP downlink PRB utilization may be denoted as nrCellDlPRBUsageOnSmallBwp, the number of terminals carried on the small bandwidth BWP may be denoted as nrcelluenumonsmallbph_th, the small bandwidth BWP uplink PRB utilization may be denoted as nrcellulnbusamegessmallbph_th, the small bandwidth BWP downlink PRB utilization may be denoted as nrcelldsagsmallsmallph_th; the terminal number margin may be denoted as nrCellUeNumDelta and the physical resource block utilization margin may be denoted as nrCellPRBUsageDelta.

It should be noted that, when judging whether to perform BWP handover, only the number of terminals carried on the small bandwidth BWP, the uplink physical resource block utilization rate, and/or the downlink physical resource block utilization rate need to be taken as the judgment basis, so in the following description, the threshold of the number of terminals involved is the threshold nrcelluenumonswellbwtihload_th of the number of terminals carried on the small bandwidth BWP; the uplink physical resource block utilization rate is the small bandwidth BWP uplink physical resource block utilization rate nrCellUlPrBusageOnSmallBwp, and the uplink physical resource block utilization rate threshold is the small bandwidth BWP uplink physical resource block utilization rate threshold nrCellUlPrBusageOnSmallBwpHigLoad_Th; the utilization rate of the downlink physical resource block is the utilization rate nrCellDlPrBusageOnSmallBwp of the downlink physical resource block of the small bandwidth BWP; the downlink physical resource block utilization threshold is a small bandwidth BWP downlink physical resource block utilization threshold nrcelldlprbusageonsalllbwphighoad_th.

For example, when counting the number nrcelluenumonswellbwp, the uplink physical resource block utilization nrcellulpribusageonswellbwp, and the downlink PRB utilization nrcelldlpribusageonswellbwp on the small bandwidth BWP, a counting period may be set, which may be denoted as t_bwpswichchange, and the number of terminals, the uplink physical resource block utilization, and the downlink PRB utilization, which are carried on the small bandwidth BWP, are counted within the counting period t_bwpswichchange.

For example, in the statistics period t_bwpswichchange, when the number of terminals carried on the small bandwidth BWP is counted, when the terminal enters the small bandwidth BWP, the number nrCellUeNumOnSmallBwp carried on the small bandwidth BWP is added by 1, when the terminal releases or switches out the small bandwidth BWP, the number nrCellUeNumOnSmallBwp is subtracted by 1, and the number nrCellUeNumOnSmallBwp at the end of the statistics period is counted as the counted number of terminals carried on the small bandwidth BWP, and the number of terminals carried on the small bandwidth BWP is recorded and stored.

For example, in the statistics period t_bwpswichchange, when the small bandwidth BWP uplink physical resource block utilization nrcellulprbusageonswellbwp and the small bandwidth BWP downlink PRB utilization nrcelldlprbusageonswellbwp are counted, the small bandwidth BWP uplink physical resource block utilization nrcellulprbusageonswellbwp and the small bandwidth BWP downlink PRB utilization nrcelldlprbusageonswellbwp may be initialized to 0; and in the statistics period t_bwpswichchange, the small bandwidth BWP uplink PRB utilization and row PRB utilization of the small BWP reported by the media access control layer (media access control, MAC) layer can be received and stored, and then accumulated and stored with the stored values each time the small bandwidth BWP uplink PRB utilization and row PRB utilization reported by the MAC are received, and at the end of the statistics period, the received small bandwidth BWP uplink PRB utilization is averaged to obtain the small bandwidth BWP uplink physical resource block utilization nrcellul prbugeonswellbwp, and the received small bandwidth BWP downlink PRB utilization is averaged to obtain the small bandwidth BWP downlink PRB utilization nrcelldlprbbusuge onsmallbwp.

For example, in one switching scenario, the preset BWP is the source BWP, i.e., the source BWP is the small bandwidth BWP, and the target BWP is the large bandwidth BWP; the corresponding switching scene is: and controlling part of terminals carried on the small bandwidth BWP to switch from the small bandwidth BWP to the large bandwidth BWP.

In this scenario, when a portion of terminals carried on the small bandwidth BWP is controlled to switch from the small bandwidth BWP to the large bandwidth BWP, the portion of terminals carried on the small bandwidth BWP may be controlled to switch from the small bandwidth BWP to the large bandwidth BWP according to the number of terminals carried on the small bandwidth BWP and traffic load conditions. The method comprises the following steps: when the number of terminals carried on the small bandwidth BWP and the traffic load situation reach a certain threshold, it is indicated that the spectrum resources on the small bandwidth BWP are limited, so that it is possible to control to switch some of the terminals in the small bandwidth BWP from the small bandwidth BWP to the large bandwidth BWP to improve the user experience of the small bandwidth BWP, so that the spectrum resources on the small bandwidth BWP and the large bandwidth BWP can be effectively utilized, and the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, thereby improving the utilization rate of the spectrum resources on the BWP. When the number of terminals and the traffic load situation carried on the small bandwidth BWP do not reach the above threshold, it is indicated that the spectrum resource on the small bandwidth BWP can meet the traffic requirement of the terminals carried thereon, and therefore, the terminals carried on the small bandwidth BWP can be controlled to remain on the small bandwidth BWP without performing BWP handover.

Illustratively, controlling the portion of the terminals carried on the small bandwidth BWP to switch from the small bandwidth BWP to the large bandwidth BWP according to the number of terminals carried on the small bandwidth BWP and the traffic load situation may include at least two possible implementations as follows:

in a possible implementation manner, for example, referring to fig. 2, fig. 2 is a schematic diagram of a control terminal switching from a small bandwidth BWP to a large bandwidth BWP according to an embodiment of the present application, it may be first determined whether the number of terminals carried on the small bandwidth BWP is greater than a terminal number threshold, and if the number of terminals carried on the small bandwidth BWP is greater than the terminal number threshold, the uplink physical resource block utilization ratio is compared with the uplink physical resource block utilization ratio threshold, and/or the downlink physical resource block utilization ratio is compared with the downlink physical resource block utilization ratio threshold; and when the uplink physical resource block utilization rate is greater than the uplink physical resource block utilization rate threshold value and/or the downlink physical resource block utilization rate is greater than the downlink physical resource block utilization rate threshold value, controlling part of terminals in the source BWP to switch from the small bandwidth BWP to the large bandwidth BWP.

The corresponding pseudocode can be found in the following:

if:

nrCellUeNumOnSmallBwp>nrCellUeNumOnSmallBwpHighLoad_Th

If:

(nrCellUlPRBUsageOnSmallBwp>nrCellUlPRBusageOnSmallBwpHighLoad_Th)||nrCellDlPRBUsageOnSmallBwp>nrCellDlPRBusageOnSmallBwpHighLoad_Th)

then: switching part of terminals to large bandwidth BWP

Otherwise: maintaining existing BWP switching method

The existing BWP switching method refers to performing BWP switching according to the traffic data volume of the terminal.

It can be seen that in this possible implementation manner, when the control terminal switches from the small bandwidth BWP to the large bandwidth BWP, in a case where the number of terminals carried on the small bandwidth BWP is greater than the terminal number threshold, as long as either or both of the uplink physical resource block utilization and the downlink physical resource block utilization are greater than the respective corresponding physical resource block utilization threshold, which indicates that the spectrum resources on the small bandwidth BWP are limited, a part of the terminals in the small bandwidth BWP are controlled to switch from the small bandwidth BWP to the large bandwidth BWP. In this way, the small bandwidth BWP is integrated, and the number of terminals and the traffic load situation carried on the small bandwidth BWP are combined to control part of the terminals in the small bandwidth BWP to perform BWP switching, so that the spectrum resources on the small bandwidth BWP and the large bandwidth BWP can be effectively utilized, and the utilization rate of the spectrum resources on the BWP is improved.

In another possible implementation, unlike the possible implementation described above, the concepts of terminal number tolerance and physical resource block utilization tolerance are additionally introduced in this possible implementation. It can be appreciated that in the embodiment of the present application, by introducing the terminal number tolerance and the physical resource block utilization tolerance, the ping-pong problem in the BWP handover process can be effectively avoided to a certain extent.

In this possible implementation manner, for example, referring to fig. 3, fig. 3 is a schematic diagram of switching a control terminal from a small bandwidth BWP to a large bandwidth BWP according to an embodiment of the present application, whether the number of terminals carried on the small bandwidth BWP is greater than a difference between a terminal number threshold and a terminal number tolerance may be determined first, and in a case where the number of terminals carried on the small bandwidth BWP is greater than a difference between the terminal number threshold and the terminal number tolerance, the uplink physical resource block utilization may be compared with a first difference, and/or the downlink physical resource block utilization may be compared with a second difference; the first difference value is the difference value between the uplink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance, and the second difference value is the difference value between the downlink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance; and controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than the first difference value and/or the downlink physical resource block utilization rate is larger than the second difference value.

The corresponding pseudocode can be found in the following:

if:

nrCellUeNumOnSmallBwp>nrCellUeNumOnSmallBwpHighLoad_Th-nrCellUeNumDelta

if:

(nrCellUlPRBUsageOnSmallBwp>nrCellUlPRBusageOnSmallBwpHighLoad_Th-nrCellPRBUsageDelta)||nrCellDlPRBUsageOnSmallBwp>nrCellDlPRBusageOnSmallBwpHighLoad_Th-nrCellPRBUsageDelta)

then: switching part of terminals to large bandwidth BWP

Otherwise: maintaining existing BWP switching method

It can be seen that in this possible implementation manner, when the control terminal switches from the small bandwidth BWP to the large bandwidth BWP, in a case where the number of terminals carried on the small bandwidth BWP is greater than the difference between the threshold of the number of terminals and the tolerance of the number of terminals, as long as either or both of the uplink physical resource block utilization and the downlink physical resource block utilization are greater than the respective corresponding differences, which means that the spectrum resources on the small bandwidth BWP are limited, a part of the terminals in the small bandwidth BWP are controlled to switch from the small bandwidth BWP to the large bandwidth BWP. In this way, the small bandwidth BWP is integrated, and the number of terminals and the traffic load situation carried on the small bandwidth BWP are combined to control part of the terminals in the small bandwidth BWP to perform BWP switching, so that the spectrum resources on the small bandwidth BWP and the large bandwidth BWP can be effectively utilized, and the utilization rate of the spectrum resources on the BWP is improved. In addition, by introducing the terminal number margin and the physical resource block utilization margin, the ping-pong problem in the BWP switching process can be effectively avoided to a certain extent.

In the two possible implementations described above, when the control source BWP, that is, a portion of the terminals in the small bandwidth BWP, is switched from the small bandwidth BWP to the target BWP, the target terminal that finally enters the source BWP may be selected from the plurality of terminals carried by the source BWP, that is, the terminal that needs to perform BWP switching, and the control target terminal is switched from the source BWP to the target BWP. In general, in order to avoid the ping-pong problem during BWP handover, it is only necessary to determine that one target terminal performs BWP handover from the terminals in the bearer on the source BWP per BWP handover operation, i.e., only one terminal is handed over from the source BWP per BWP handover operation. The BWP handover may be performed several times later until the number of terminals and the traffic load situation carried on the small bandwidth BWP are both below the threshold.

In the above detailed description, in one scenario, the preset BWP is the source BWP, and the corresponding switching scenario is: the control terminal switches from the small bandwidth BWP to the large bandwidth BWP. Next, another scenario will be described in detail.

In another scenario, the preset BWP is a target BWP, i.e., the source BWP is a large bandwidth BWP, and the target BWP is a small bandwidth BWP; the corresponding switching scene is: the part of the terminals that are carried on the large bandwidth BWP is controlled to switch from the large bandwidth BWP to the small bandwidth BWP.

In this scenario, when controlling a portion of terminals carried on the large bandwidth BWP to switch from the large bandwidth BWP to the small bandwidth BWP, the terminals carried on the large bandwidth BWP may be controlled to switch from the large bandwidth BWP to the small bandwidth BWP according to the number of terminals carried on the small bandwidth BWP and the traffic load situation. The method comprises the following steps: when the traffic data volume of the terminal carried on the large bandwidth BWP becomes smaller, the number of terminals and traffic load situation carried on the small bandwidth BWP can be judged, and when the number of terminals and traffic load situation carried on the small bandwidth BWP do not reach the threshold, part of the terminals carried on the large bandwidth BWP can be controlled to switch from the large bandwidth BWP to the small bandwidth BWP, so that the spectrum resources on the large bandwidth BWP and the small bandwidth BWP can be effectively utilized, the problem that the spectrum resources on the BWP cannot be effectively utilized in the prior art is solved, and the utilization rate of the spectrum resources on the BWP is improved. When the number of terminals and/or traffic load conditions carried on the small bandwidth BWP reach the above threshold, it is indicated that the spectrum resources on the small bandwidth BWP are limited, and thus, the terminals carried on the large bandwidth BWP can be controlled to remain on the large bandwidth BWP without performing BWP handover.

Illustratively, controlling the terminal carried on the large bandwidth BWP to switch from the large bandwidth BWP to the small bandwidth BWP according to the number of terminals carried on the small bandwidth BWP and the traffic load situation may include at least two possible implementations as follows:

in a possible implementation manner, for example, referring to fig. 4, fig. 4 is a schematic diagram of a control terminal switching from a large bandwidth BWP to a small bandwidth BWP according to an embodiment of the present application, it may be determined whether the number of terminals carried on the small bandwidth BWP is smaller than a terminal number threshold, whether an uplink physical resource block utilization is smaller than an uplink physical resource block utilization threshold, and whether a downlink physical resource block utilization is smaller than a downlink physical resource block utilization threshold; and when the number of terminals carried on the small bandwidth BWP is smaller than the terminal number threshold, the uplink physical resource block utilization is smaller than the uplink physical resource block utilization threshold, and the downlink physical resource block utilization is smaller than the downlink physical resource block utilization threshold, controlling part of terminals in the large bandwidth BWP to switch from the large bandwidth BWP to the small bandwidth BWP.

The corresponding pseudocode can be found in the following:

if:

(nrCellUeNumOnSmallBwp<nrCellUeNumOnSmallBwpHighLoad_Th)&&(nrCellUlPRBUsageOnSmallBwp<nrCellUlPRBusageOnSmallBwpHighLoad_Th)&&(nrCellDlPRBUsageOnSmallBwp<nrCellDlPRBusageOnSmallBwpHighLoad_Th)

then: switching part of terminals to a small bandwidth BWP

Otherwise: maintaining large bandwidth BWP

It can be seen that, in this possible implementation manner, when the control terminal switches from the large bandwidth BWP to the small bandwidth BWP, the number of terminals carried on the small bandwidth BWP is smaller than the terminal number threshold, and when the uplink physical resource block utilization is smaller than the uplink physical resource block utilization threshold and the downlink physical resource block utilization is smaller than the downlink physical resource block utilization threshold, a part of terminals in the large bandwidth BWP are controlled to switch from the large bandwidth BWP to the small bandwidth BWP, so that the small bandwidth BWP is integrated, and the BWP switching is jointly controlled by combining the number of terminals carried on the small bandwidth BWP and the traffic load situation, so that the spectrum resources on the small bandwidth BWP and the large bandwidth BWP can be effectively utilized, thereby improving the spectrum resource utilization on the BWP.

In this possible implementation manner, for example, please refer to fig. 5, fig. 5 is a schematic diagram of switching a control terminal from a large bandwidth BWP to a small bandwidth BWP according to an embodiment of the present application, whether the number of terminals carried on the small bandwidth BWP is smaller than the difference between the threshold of the number of terminals and the tolerance of the number of terminals, whether the uplink physical resource block utilization is smaller than the third difference, and whether the downlink physical resource block utilization is smaller than the fourth difference may be determined first; the third difference value is the difference value between the uplink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance, and the fourth difference value is the difference value between the downlink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance; and controlling part of terminals in the large bandwidth BWP to switch from the large bandwidth BWP to the small bandwidth BWP under the condition that the number of the terminals carried on the small bandwidth BWP is smaller than the difference value of the terminal number threshold value and the terminal number tolerance, the uplink physical resource block utilization rate is smaller than the third difference value and the downlink physical resource block utilization rate is smaller than the fourth difference value.

The corresponding pseudocode can be found in the following:

if:

(nrCellUeNumOnSmallBwp<nrCellUeNumOnSmallBwpHighLoad_Th-nrCellUeNumDelta)&&(nrCellUlPRBUsageOnSmallBwp<nrCellUlPRBusageOnSmallBwpHighLoad_Th-nrCellPRBUsageDelta)&&(nrCellDlPRBUsageOnSmallBwp<

nrCellDlPRBusageOnSmallBwpHighLoad_Th-nrCellPRBUsageDelta)

then: switching part of terminals to a small bandwidth BWP

Otherwise: maintaining large bandwidth BWP

It can be seen that in this possible implementation, when the control terminal switches from the large bandwidth BWP to the small bandwidth BWP, the number of terminals carried on the small bandwidth BWP is smaller than the difference between the threshold number of terminals and the tolerance of the number of terminals, the uplink physical resource block utilization is smaller than the third difference, and the downlink physical resource block utilization is smaller than the fourth difference, and part of the terminals in the large bandwidth BWP are controlled to switch from the large bandwidth BWP to the small bandwidth BWP. In this way, the small bandwidth BWP is integrated, and the number of terminals and the traffic load situation carried on the small bandwidth BWP are combined to jointly control part of the terminals in the large bandwidth BWP to perform BWP switching, so that the spectrum resources on the small bandwidth BWP and the large bandwidth BWP can be effectively utilized, and the utilization rate of the spectrum resources on the BWP is improved. In addition, by introducing the terminal number margin and the physical resource block utilization margin, the ping-pong problem in the BWP switching process can be effectively avoided to a certain extent.

It should be noted that, in the embodiment of the present application, other scenarios may adopt an existing BWP switching method, that is, the BWP switching is performed by the terminal according to the traffic data amount of the terminal, except for the above two switching scenarios referred to in the embodiment of the present application, which is not described herein again.

Based on any of the above embodiments, there is also a possible scenario, i.e. a scenario where there is a new terminal access. In this possible scenario, under the condition that it is determined that there is a new terminal access, a preset BWP, that is, the number of terminals and the traffic load situation carried on the small BWP, may be acquired first; and controlling the new terminal to execute BWP access operation according to the number of terminals and the service load condition.

For example, in the embodiment of the present application, when controlling the new terminal to perform the BWP access operation according to the number of terminals and the traffic load situation, at least two possible implementations may be included:

in a possible implementation manner, for example, referring to fig. 6, fig. 6 is one of schematic diagrams for controlling a new terminal to perform an access operation of BWP according to an embodiment of the present application, it may be first determined whether the number of terminals carried on the small bandwidth BWP is greater than a terminal number threshold, and if the number of terminals carried on the small bandwidth BWP is greater than the terminal number threshold, the uplink physical resource block utilization ratio is compared with the uplink physical resource block utilization ratio threshold, and/or the downlink physical resource block utilization ratio is compared with the downlink physical resource block utilization ratio threshold; and controlling the access of the new terminal to the large bandwidth BWP under the condition that the utilization rate of the uplink physical resource block is larger than the utilization rate threshold of the uplink physical resource block and/or the utilization rate of the downlink physical resource block is larger than the utilization rate threshold of the downlink physical resource block.

The corresponding pseudocode can be found in the following:

if:

nrCellUeNumOnSmallBwp>nrCellUeNumOnSmallBwpHighLoad_Th

if:

then: controlling access of new terminals to large bandwidth BWP

Otherwise: maintaining existing BWP configuration method

The existing BWP configuration method refers to BWP configuration according to the traffic data volume of the terminal.

It can be seen that, in this possible implementation manner, when controlling the new terminal to perform the access operation of the BWP, in the case that the number of terminals carried on the small bandwidth BWP is greater than the threshold number of terminals, as long as either one or both of the uplink physical resource block utilization and the downlink physical resource block utilization are greater than the respective corresponding physical resource block utilization threshold, it is indicated that the spectrum resources on the small bandwidth BWP are limited, and then the new terminal is directly controlled to access the large bandwidth BWP. In this way, compared with the case that the small bandwidth BWP is configured firstly and then the small bandwidth BWP is found to exceed the set threshold and needs to be switched to the large bandwidth BWP, the BWP switching can be avoided being performed once, and therefore the access efficiency of the new terminal is improved.

In this possible implementation manner, for example, please refer to fig. 7, fig. 7 is a schematic diagram of a second embodiment of controlling a new terminal to perform an access operation of BWP, which may first determine whether the number of terminals carried on the small bandwidth BWP is greater than a difference between a threshold number of terminals and a tolerance number of terminals, and compare the uplink physical resource block utilization with a first difference and/or compare the downlink physical resource block utilization with a second difference when the number of terminals carried on the small bandwidth BWP is greater than a difference between the threshold number of terminals and the tolerance number of terminals; the first difference value is the difference value between the uplink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance, and the second difference value is the difference value between the downlink physical resource block utilization rate threshold value and the physical resource block utilization rate tolerance; and controlling the new terminal to access to the large bandwidth BWP under the condition that the utilization rate of the uplink physical resource block is larger than the first difference value and/or the utilization rate of the downlink physical resource block is larger than the second difference value.

The corresponding pseudocode can be found in the following:

if:

nrCellUeNumOnSmallBwp>nrCellUeNumOnSmallBwpHighLoad_Th-nrCellUeNumDelta

if:

then: controlling access of new terminals to large bandwidth BWP

Otherwise: maintaining existing BWP configuration method

It can be seen that, in this possible implementation manner, when controlling the new terminal to perform the BWP access operation, in the case where the number of terminals carried on the small bandwidth BWP is greater than the difference between the threshold of the number of terminals and the tolerance of the number of terminals, as long as either one or both of the uplink physical resource block utilization and the downlink physical resource block utilization are greater than the respective corresponding differences, which indicates that the spectrum resources on the small bandwidth BWP are limited, the new terminal is directly controlled to access to the large bandwidth BWP. In this way, compared with the case that the small bandwidth BWP is configured firstly and then the small bandwidth BWP is found to exceed the set threshold and needs to be switched to the large bandwidth BWP, the BWP switching can be avoided being performed once, and therefore the access efficiency of the new terminal is improved. In addition, by introducing the terminal number margin and the physical resource block utilization margin, the ping-pong problem in the BWP switching process can be effectively avoided to a certain extent.

Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application, as shown in fig. 8, where the network device includes a memory 820, a transceiver 800, and a processor 810, where:

A memory 820 for storing a computer program; a transceiver 800 for transceiving data under the control of the processor 810; a processor 810 for reading the computer program in the memory 820 and performing the following operations:

Specifically, the transceiver 800 is configured to receive and transmit data under the control of the processor 810.

Wherein in fig. 8, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 810 and various circuits of memory represented by memory 820, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 800 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 in performing operations.

The processor 810 may be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or may employ a multi-core architecture.

Illustratively, in the embodiment of the present application, the traffic load situation includes an uplink physical resource block utilization and/or a downlink physical resource block utilization carried on the preset BWP.

In an embodiment of the present application, the preset BWP is a source BWP, and controlling the partial terminals in the source BWP to switch from the source BWP to a target BWP according to the number of terminals and the traffic load situation carried on the preset BWP includes:

And controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than the uplink physical resource block utilization rate threshold and/or the downlink physical resource block utilization rate is larger than the downlink physical resource block utilization rate threshold.

comparing the uplink physical resource block utilization rate with a first difference value and/or comparing the downlink physical resource block utilization rate with a second difference value under the condition that the number of the terminals is larger than the difference value between the terminal number threshold and the terminal number tolerance; the first difference value is a difference value between an uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the second difference value is a difference value between a downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance.

In an embodiment of the present application, the preset BWP is a target BWP, and controlling the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP includes:

and when the number of terminals is smaller than the threshold of the number of terminals, the utilization rate of the uplink physical resource block is smaller than the threshold of the utilization rate of the uplink physical resource block, and the utilization rate of the downlink physical resource block is smaller than the threshold of the utilization rate of the downlink physical resource block, controlling part of terminals in the source BWP to be switched from the source BWP to the target BWP.

and controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the number of terminals is smaller than the difference value of the terminal number threshold and the terminal number tolerance, the utilization rate of the uplink physical resource block is smaller than the third difference value, and the utilization rate of the downlink physical resource block is smaller than the fourth difference value.

The third difference value is a difference value between an uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the fourth difference value is a difference value between a downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance.

For example, in the embodiment of the present application, the preset BWP is a source BWP, and controlling a portion of terminals in the source BWP to switch from the source BWP to a target BWP includes:

the target terminal that finally enters the source BWP is selected from among the plurality of terminals carried by the source BWP.

The control target terminal switches from the source BWP to the target BWP.

Illustratively, in an embodiment of the present application, the network device further performs the following operations:

And controlling the new terminal to execute BWP access operation according to the number of the terminals and the traffic load condition.

It should be noted that, the network device provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

In addition, the embodiment of the application also provides a partial bandwidth BWP switching device, which is used for solving the problem that the resources on the BWP cannot be effectively utilized in the prior art, and improving the resource utilization rate on the BWP. It can be appreciated that the partial bandwidth BWP switching device and the partial bandwidth BWP switching method are based on the same application concept, and the principles of solving the problems are similar, so that the implementation of the partial bandwidth BWP switching device and the partial bandwidth BWP switching method can be referred to each other, and the repetition is omitted.

The embodiment of the present application further provides a partial bandwidth BWP switching device, which is applied to a network device, for example, as shown in fig. 9, fig. 9 is a schematic structural diagram of the partial bandwidth BWP switching device provided in the embodiment of the present application, where the partial bandwidth BWP switching device 90 may include:

A first obtaining unit 901, configured to obtain the number of terminals and the service load situation carried on a preset BWP; the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP.

A first control unit 902, configured to control a portion of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP.

For example, in the embodiment of the present application, the preset BWP is a source BWP, and the first control unit 902 is specifically configured to:

comparing the uplink physical resource block utilization rate with an uplink physical resource block utilization rate threshold value and/or comparing the downlink physical resource block utilization rate with a downlink physical resource block utilization rate threshold value under the condition that the number of terminals is larger than the terminal number threshold value; and controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than the uplink physical resource block utilization rate threshold and/or the downlink physical resource block utilization rate is larger than the downlink physical resource block utilization rate threshold.

comparing the uplink physical resource block utilization rate with a first difference value and/or comparing the downlink physical resource block utilization rate with a second difference value under the condition that the number of the terminals is larger than the difference value between the terminal number threshold and the terminal number tolerance; the first difference value is a difference value between an uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the second difference value is a difference value between a downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance. And controlling part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the uplink physical resource block utilization rate is larger than the first difference value and/or the downlink physical resource block utilization rate is larger than the second difference value.

For example, in the embodiment of the present application, the preset BWP is a target BWP, and the first control unit 902 is specifically configured to:

selecting a target terminal which finally enters the source BWP from a plurality of terminals carried by the source BWP; the control target terminal switches from the source BWP to the target BWP.

Illustratively, in the embodiment of the present application, the partial bandwidth BWP switching device 90 further includes a second obtaining unit and a second control unit.

And the second acquisition unit is used for acquiring the number of the terminals and the service load condition carried on the preset BWP under the condition that the access of the new terminal is determined.

And the second control unit is used for controlling the new terminal to execute the BWP access operation according to the number of the terminals and the service load condition.

It should be noted that, the partial bandwidth BWP switching device 90 provided in this embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are omitted.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, embodiments of the present application further provide a processor readable storage medium storing a computer program, where the computer program is configured to cause the processor to perform the method provided in the foregoing embodiments, where the method includes: acquiring the number of terminals and the service load condition carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP; and controlling part of terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals carried on the preset BWP and the traffic load condition.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A partial bandwidth BWP switching method, applied to a network device, the method comprising:

acquiring the number of terminals and the service load condition carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP;

2. The partial bandwidth BWP switching method according to claim 1, characterized in that,

the service load condition includes an uplink physical resource block utilization rate and/or a downlink physical resource block utilization rate carried on the preset BWP.

3. The partial bandwidth BWP switching method according to claim 2, characterized in that the preset BWP is a source BWP, and the controlling the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and traffic load conditions carried on the preset BWP comprises:

comparing the uplink physical resource block utilization rate with an uplink physical resource block utilization rate threshold value and/or comparing the downlink physical resource block utilization rate with a downlink physical resource block utilization rate threshold value under the condition that the number of the terminals is larger than the terminal number threshold value;

4. The partial bandwidth BWP switching method according to claim 2, characterized in that the preset BWP is a source BWP, and the controlling the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and traffic load conditions carried on the preset BWP comprises:

Comparing the uplink physical resource block utilization rate with a first difference value and/or comparing the downlink physical resource block utilization rate with a second difference value under the condition that the number of the terminals is larger than the difference value between the terminal number threshold and the terminal number tolerance; the first difference value is a difference value between the uplink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance, and the second difference value is a difference value between the downlink physical resource block utilization rate threshold value and a physical resource block utilization rate tolerance;

5. The partial bandwidth BWP switching method according to claim 2, characterized in that the preset BWP is a target BWP, and the controlling the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and traffic load conditions carried on the preset BWP comprises:

6. The partial bandwidth BWP switching method according to claim 2, characterized in that the preset BWP is a target BWP, and the controlling the partial terminals in the source BWP to switch from the source BWP to the target BWP according to the number of terminals and traffic load conditions carried on the preset BWP comprises:

controlling a part of terminals in the source BWP to switch from the source BWP to the target BWP under the condition that the number of terminals is smaller than the difference between the threshold of the number of terminals and the tolerance of the number of terminals, the utilization ratio of the uplink physical resource blocks is smaller than a third difference, and the utilization ratio of the downlink physical resource blocks is smaller than a fourth difference;

7. The partial bandwidth BWP switching method according to any one of claims 1-6, characterized in that the preset BWP is a source BWP, and the controlling the switching of part of the terminals in the source BWP from the source BWP to the target BWP comprises:

selecting a target terminal which finally enters the source BWP from a plurality of terminals carried by the source BWP;

8. The partial bandwidth BWP switching method according to any one of the claims 1-6, characterized in that the method further comprises:

under the condition that the access of a new terminal is determined, acquiring the quantity of the terminals and the service load condition carried on the preset BWP;

9. A network device comprising a memory, a transceiver, and a processor:

10. The network device of claim 9, wherein the network device,

11. The network device of claim 10, wherein the network device,

the preset BWP is a source BWP, and the controlling the switching of part of terminals in the source BWP from the source BWP to the target BWP according to the number of terminals and the service load situation carried on the preset BWP includes:

12. The network device according to claim 10, wherein the preset BWP is a source BWP, and wherein the controlling the switching of the partial terminals in the source BWP from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP comprises:

13. The network device according to claim 10, wherein the preset BWP is a target BWP, and wherein the controlling the switching of the partial terminals in the source BWP from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP comprises:

14. The network device according to claim 10, wherein the preset BWP is a target BWP, and wherein the controlling the switching of the partial terminals in the source BWP from the source BWP to the target BWP according to the number of terminals and the traffic load situation carried on the preset BWP comprises:

15. Network device according to any of claims 9-14, wherein the preset BWP is a source BWP, and wherein the controlling the switching of part of the terminals in the source BWP from the source BWP to the target BWP comprises:

16. The network device of any of claims 9-14, wherein the network device further performs the following operations:

17. A partial bandwidth BWP switching apparatus, characterized by being applied to a network device, the apparatus comprising:

a first obtaining unit, configured to obtain the number of terminals and the service load situation carried on a preset BWP; wherein, the preset BWP is a partial bandwidth BWP in the full bandwidth, and the preset BWP is a source BWP or a target BWP;

18. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the partial bandwidth BWP switching method of any one of claims 1 to 8.