CN110958179B - Method, device and system for switching terminal part bandwidth - Google Patents

Method, device and system for switching terminal part bandwidth Download PDF

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CN110958179B
CN110958179B CN201911184475.XA CN201911184475A CN110958179B CN 110958179 B CN110958179 B CN 110958179B CN 201911184475 A CN201911184475 A CN 201911184475A CN 110958179 B CN110958179 B CN 110958179B
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bwp
switched
current
terminal
target
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CN110958179A (en
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张力方
迟永生
胡泽妍
刘洋
胡云
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H04L45/306—Route determination based on the nature of the carried application
    • H04L45/3065—Route determination based on the nature of the carried application for real time traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/801—Real time traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/822—Collecting or measuring resource availability data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a terminal bandwidth switching method, a device and a system, relating to the technical field of wireless communication. The method comprises the following steps: acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service; when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; and when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW.

Description

Method, device and system for switching terminal part bandwidth
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a system for switching a terminal portion bandwidth.
Background
In the 5G technology, the problem of performance waste and high power consumption caused by the fact that all terminal User Equipment (UE) use the largest bandwidth is solved by the presence of a partial bandwidth part (BWP) technology. Currently, in a New Radio (NR) Frequency Division Duplexing (FDD) system, at most four Uplink (UL) BWPs and four Downlink (DL) BWPs can be configured for one UE, and in a NR Time Division Duplexing (TDD) system, at most four BWP pairs (Pair) can be configured for one UE. When a UE operates to a certain time, only one uplink BWP and one downlink BWP are active, because the uplink BWP and the downlink BWP required by the UE in different use states change, the BWP selection or switching needs to be performed by the BWP technology.
However, in the prior art, when performing BWP handover on a terminal, the actual requirements of the terminal service and quality of service (QOS) parameters and other factors are not considered, so that the allocation of bandwidth resources is not optimal, which affects the service quality and further causes poor user experience.
Disclosure of Invention
The application provides a method, a device and a system for switching terminal part bandwidth, which enable the allocation of bandwidth resources to be more optimal, thereby improving the service quality.
In order to achieve the purpose, the technical scheme is as follows:
in a first aspect, the present application provides a method for switching a bandwidth of a terminal portion, including: acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs; when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW; when determining that the terminal needs to switch the current BWP to the BWP to be switched, sending a switching instruction to the terminal; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched.
The method for switching the bandwidth of the terminal part includes the steps that firstly, a target BW required by a target service performed by the terminal at the current time, a current BWP used by the terminal at the current time, a BWP to be switched and a service type of the target service are obtained; when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; and when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW. According to the terminal bandwidth switching method provided by the application, when the target service of the terminal changes, by analyzing the size relationship between the target BW required by the target service performed by the terminal at the current moment, the current BWP used by the terminal at the current moment and the BWP to be switched, and considering the requirements of different types of target services, since the technical scheme provided by the embodiment of the application starts from the actual bandwidth requirement of the target service and combines multiple factors to determine whether the terminal needs to switch the current BWP to be switched, compared with the existing terminal BWP switching method, the terminal BWP switching method is better in bandwidth resource allocation and higher in service quality.
In a second aspect, the present application provides a terminal portion bandwidth switching apparatus, including: the device comprises an acquisition module, a determination module and a sending module; the system comprises an acquisition module, a service type switching module and a service type switching module, wherein the acquisition module is used for acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and the service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs; a determining module, configured to determine whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BW and the BWP to be switched acquired by the acquiring module and the service type of the target service when the current BWP acquired by the acquiring module is greater than the BWP to be switched; the determining module is further configured to determine whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP acquired by the acquiring module and the target BW when the current BWP acquired by the acquiring module is smaller than the BWP to be switched; the sending module is used for sending a switching instruction to the terminal when the determining module determines that the terminal needs to switch the current BWP to be switched; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched.
In a third aspect, the present application provides a terminal portion bandwidth switching apparatus, including a memory, a processor, a bus, and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through a bus; when the terminal part bandwidth switching device is running, the processor executes computer-executable instructions stored in the memory to cause the terminal part bandwidth switching device to perform the terminal part bandwidth switching method as provided by the first aspect.
In a fourth aspect, the present application provides a computer storage medium having instructions stored therein, which when executed by a computer, implement the method for switching bandwidth of a terminal portion as provided in the first aspect.
In a fifth aspect, the present application provides a base station comprising the terminal part bandwidth switching apparatus as provided in the second aspect.
In a sixth aspect, the present application provides a terminal part bandwidth switching system, which includes a terminal and a base station as provided in the fifth aspect.
The application provides a method, a device and a system for switching bandwidth of a terminal part, wherein the method comprises the following steps: acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs; when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW; when determining that the terminal needs to switch the current BWP to the BWP to be switched, sending a switching instruction to the terminal; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched. According to the technical scheme provided by the application, when the target service of the terminal changes, the size relationship among the target BW required by the target service performed by the terminal at the current moment, the current BWP used by the terminal at the current moment and the BWP to be switched is analyzed; when the current BWP is smaller than the BWP to be switched, determining whether the current BWP meets the requirement of the target service only according to the size relationship between the current BWP and the target BW, that is, determining whether the terminal needs to switch the current BWP to the BWP to be switched by determining the size relationship between the current BWP and the target BW; when the current BWP is larger than the BWP to be switched, not only needs to consider whether the size relationship between the target BW required by the target service and the BWP to be switched satisfies the switching requirement, but also determines whether the terminal needs to switch the current BWP to the BWP to be switched according to the service type of the target service.
Drawings
Fig. 1 is a schematic diagram of a method for switching a bandwidth of a terminal part according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating an architecture of a terminal portion bandwidth switching system according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of a method for switching a bandwidth of a terminal part according to an embodiment of the present application;
fig. 4 is a schematic flowchart of another method for switching a bandwidth of a terminal portion according to an embodiment of the present application;
fig. 5 is a schematic flowchart of a bandwidth switching method of a terminal part according to an embodiment of the present application;
fig. 6 is a schematic flowchart of a bandwidth switching method of a terminal portion according to an embodiment of the present application;
fig. 7 is a schematic flowchart of a bandwidth switching method of a terminal portion according to an embodiment of the present application;
fig. 8 is a schematic flowchart of a bandwidth switching method of a terminal portion according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a terminal portion bandwidth switching device according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of another terminal portion bandwidth switching device according to an embodiment of the present application.
Detailed Description
The following describes in detail a method, an apparatus, and a system for switching a bandwidth of a terminal portion according to an embodiment of the present application with reference to the accompanying drawings.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The terms "first" and "second" and the like in the description and drawings of the present application are used for distinguishing different objects or for distinguishing different processes for the same object, and are not used for describing a specific order of the objects.
Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that in the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
In the description of the present application, the meaning of "a plurality" means two or more unless otherwise specified.
Before the embodiments of the present application are explained in detail, the usage scenarios of the embodiments of the present application and the basic technical principles of the BWP technology will be described.
The third generation partnership project (3 GPP) standard organization defines that frequency points of 5G include two parts, FR1 (low frequency less than 6 GHz) and FR2 (high frequency and millimeter wave with frequency greater than 6 GHz), the bandwidth of FR1 is a main frequency band of the 5G bandwidth, and may be 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 40MHz, 50MHz, 60MHz, 80MHz and 100MHz, and the bandwidth of FR2 is an extension frequency band of the 5G bandwidth, and may be 50MHz, 100MHz, 200MHz, 400MHz, and the like.
The minimum bandwidth of 5G can be 5MHz, and the maximum bandwidth can reach 400MHz, if all terminal UEs are required to support the maximum bandwidth of 400MHz, this will put higher requirements on the performance of the UE, resulting in an increase in the cost of the UE; meanwhile, one UE cannot occupy the whole 400MHz bandwidth at the same time, and if the UE adopts a sampling rate corresponding to the 400MHz bandwidth, since a large bandwidth corresponds to a high sampling rate, and a high sampling rate also means high power consumption, resource waste is caused. On this background, the advent of the BWP technology has solved the series of problems described above.
At present, in an NR FDD system, one UE may configure at most four UL BWPs and four DL BWPs, and in an NR TDD system, one UE may configure at most four BWP pairs, where the BWP pairs refer to that the ID numbers (IDs) of the DL BWPs and the UL BWPs are the same, and the center frequency points are the same, but the bandwidths and the subcarrier intervals may not be the same. Although DL or UL can configure 4 BWPs at most, only one BWP is active at any time, so BWP selection or switching needs to be performed by BWP technology.
BWPs are mainly classified into two categories: initial BWP (initial BWP), and dedicated BWP (decrypted BWP), the initial BWP is mainly used for the UE to receive the remaining minimum set of system information (RMSI), Open System Interconnection (OSI) initiated random access, etc., and the dedicated BWP is mainly used for data traffic transmission, and the bandwidth of the dedicated BWP is generally larger than that of the initial BWP.
In Long Term Evolution (LTE), the bandwidth of the UE is consistent with the bandwidth of the system, and the bandwidth remains unchanged after decoding the bandwidth configured by the Management Information Base (MIB) information; in NR, the bandwidth of the UE may be switched based on the BWP technology. As shown in fig. 1, a schematic diagram of a terminal portion bandwidth switching method is provided, at time T1, traffic of a target service within a time period from T1 to T2 can be estimated, as shown in fig. 1, when the traffic is large, a base station configures a large bandwidth (BWP1) of 40MHZ for a UE; at the time of T2, if the predicted traffic volume of the target service in the time period from T2 to T3 is small, the base station configures a small bandwidth (BWP2) of 10MHZ for the UE, so as to meet the basic communication requirement; at time T3, when BWP1 finds a wide frequency selective fading range or BWP1 has a shortage of resources in the frequency range, the base station reallocates a new bandwidth to the UE (BWP3) from time T3 to time T4.
In the BWP technology, the BWPs allocated by the terminal UE in different time periods only need to adopt corresponding center frequency points and sampling rates, and the subcarrier intervals and CP (cyclic prefix) types of different BWPs can be configured differently to adapt to different types of services. In addition, when 5G adds a new technology, the technology can be directly run on a new BWP to ensure forward compatibility of the system.
In addition, the QOS parameter is an important parameter for realizing network resource allocation and scheduling according to user requirements, and includes: a 5G QOS Indicator (5G QOS Indicator, 5QI), an Allocation and Retention Priority (ARP) parameter, a Reflection QOS Attribute (RQA), a notification control (notification control), a Flow Bit Rate (FBR), a maximum packet loss rate (maximum packet loss) parameter, a traffic priority, etc.; wherein 5QI is a scalar used as a reference for a particular QOS forwarding behavior; the ARP parameter comprises information of priority, preemption capability, being preempted and the like, and when the system resource is limited, the ARP parameter determines whether a new QOS flow is accepted or rejected; RQAs are an optional parameter that indicates that some traffic on the QOS flow may be affected by reflected QOS; the notification control is carried out, the core network can control whether a next generation radio-access network (NG-RAN) reports a message to notify the core network when a Guaranteed Flow Bit Rate (GFBR) of the GBR-QOS flow cannot be met or not through the parameter; GFBR denotes the bit rate guaranteed to be provided by the network to the QOS flow over an average time window, the Maximum Flow Bit Rate (MFBR) limiting the bit rate to the highest bit rate expected by the QOS flow, the network bringing the bit rate within the range of GFBR and MFBR by priority scheduling processing of the QOS flow; the maximum packet loss rate indicates the maximum packet loss rate that a QOS flow can tolerate, and the maximum packet loss rate parameter is only possibly provided on the QOS flow of the GFBR; the service priority is used to represent the resource scheduling priority between 5G QOS flows, and the parameter is used to distinguish the QOS flows of one terminal and also to distinguish the QOS flows of different terminals.
Although the BWP technology has many advantages, the existing BWP handover to the terminal does not consider the actual requirements of the terminal service, nor the QOS parameters, i.e. the service priority, for implementing the network resource allocation and scheduling, so that the allocation of the bandwidth resources is not optimal, which affects the service quality, and further makes the user experience worse.
Aiming at the problems existing in the prior art when the terminal part bandwidth is switched, the embodiment of the application provides a method for switching the terminal part bandwidth.
The method for switching the bandwidth of the terminal part provided by the embodiment of the present application is applied to the system architecture shown in fig. 2, where the system architecture includes a terminal 01 and a base station 02.
The terminal 01 may be different types of terminals 01 such as a mobile phone, a tablet computer, a desktop computer, a laptop computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a netbook, a Personal Digital Assistant (PDA), a wearable electronic device, and a virtual reality device, which are connected to the base station 02.
And the base station 02 is configured to determine whether the terminal 01 needs to switch the current BWP to the BWP to be switched according to the target BW, the current BWP, the size relationship of the BWP to be switched, and the service type of the target service.
Based on the above system architecture, as shown in fig. 3, an embodiment of the present application provides a method for switching a terminal portion bandwidth, where the method may include S101 to S104:
s101, acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service.
The target BWs of the requirements of different types of target services are different, and the BWP needs to consider the actual requirements of the target services, so that the target BW, the current BWP and the BWP to be switched can be obtained, and whether the current BWP needs to be switched into the BWP to be switched is judged by comparing the bandwidth sizes of the target BWs, the current BWP and the BWP to be switched; further, since the low latency service has a high requirement for the handover delay, the low latency service needs to take the handover delay into consideration when considering whether to perform BWP handover, and therefore, when performing BWP handover, the service type of the target service needs to be acquired, so as to make a further determination according to the progress of the target service.
The service types of the existing target services may be divided into two categories, including low-latency services and NON-low-latency services, where the NON-low-latency services include Guaranteed Bit Rate (GBR) services and NON-guaranteed bit rate (NON-GBR) services.
In addition, in this embodiment of the present application, the current BWP may be represented by BWP _ n, the BWP to be switched may be represented by BWP _ n +1, the GBR class traffic target BW may be represented by BWP _ a, and the NON-GBR class traffic target BW may be represented by BWP _ B, so that the NON-low-latency class traffic target BW may be collectively represented by BWP _ a/B, and the low-latency class traffic target BW may be represented by BWP _ C.
It should be noted that, in the embodiments of the present application, the target BWs, the current BWPs and the BWPs to be switched are all uplink BWPs or all downlink BWPs.
S102, when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service.
When BWP _ n > BWP _ n +1, that is, when the BWP to be switched is smaller than the current BWP, if the BWP to be switched can satisfy the target BW of the target service, it may be considered to switch the current BWP to the small bandwidth BWP to be switched that consumes less power, so as to reduce the performance waste.
Optionally, as shown in fig. 4, the specific step of determining, in step S102, whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BW and the BWP to be switched and the service type of the target service specifically includes: S1021-S1023:
s1021, when the target BW is not larger than the BWP to be switched and the service type of the target service is the non-low-latency service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency of the current BWP to the BWP to be switched and the service priority of the target service.
When BWP _ n > BWP _ n +1 is greater than or equal to BWP _ a/B, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching delay from the current BWP to the BWP to be switched; further, since the service priority is an important parameter for realizing network resource allocation and scheduling in the QOS parameters, and is used to indicate the resource scheduling priority between 5G QOS streams, the service priority of the target service needs to be considered when determining whether to perform BWP handover.
It should be noted that, the smaller the parameter value of the service priority, the higher the priority of the target service, and the specific parameter value may refer to table 1.
Optionally, as shown in fig. 5, the specific step of determining, in step S1021, whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching delay from the current BWP to the BWP to be switched and the service priority of the target service specifically includes: S10211-S10214:
s10211, when the switching delay is not greater than the preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched.
S10212, when the switching delay is greater than the preset delay, determining whether the service priority of the target service is greater than the preset priority.
The preset time delay is a parameter determined manually in advance according to a certain algorithm or rule.
Optionally, the preset time delay is the sum of the first parameter and the second parameter.
The first parameter may be a time delay of data packet transmission between the terminal and the anchor point (the specific data may refer to table 1), and is represented by a PDB-service (packet delay budget service); for example, the anchor point is an anchor point of a User Port Function (UPF) of the 5G core network, that is, the first parameter is a transmission delay of a data packet between the terminal and the UPF of the 5G core network. Of course, in other communication networks suitable for the BWP handover method of the terminal provided in the embodiment of the present application, the anchor point may be other network elements with similar UPF functions, and is not limited specifically here. The second parameter can be the tolerance of switching Delay and is expressed by delta Delay; the switching Delay is denoted by Delay _ BWP.
When the BWP _ n is larger than BWP _ n +1 and is larger than or equal to BWP _ A/B, if the switching Delay is not larger than the preset Delay, namely for the non-low-Delay service, if the switching Delay from the current BWP to the BWP to be switched is within the range of the preset Delay, namely Delay _ BWP is not larger than PDB-service + delta Delay, the terminal can be determined to need to switch the current BWP to the BWP to be switched.
Optionally, the preset time delay is the sum of the third parameter and the second parameter.
The third parameter is the product of the time delay of data packet transmission between the terminal and the anchor point and a preset value, wherein the preset value is an adjustable parameter which is artificially preset and is not less than 0 and not more than 1, and can be represented by alpha, when BWP _ n is more than BWP _ n +1 and is not more than BWP _ A/B, and the switching time delay is not more than the preset time delay, the smaller the alpha value is, and the smaller the number of switching BWPs in unit time is for the same type of service;
at this time, if BWP _ n > BWP _ n +1 is greater than or equal to BWP _ a/B, that is, for the non-low-latency services, if the switching latency from the current BWP to the BWP to be switched is within the preset latency range, that is, Delay _ BWP is less than or equal to α × PDB-service + Δ Delay, it may be determined that the terminal needs to switch the current BWP to the BWP to be switched.
When BWP _ n > BWP _ n +1 is greater than or equal to BWP _ a/B, if the handover delay is greater than the predetermined delay, it is necessary to further determine whether the service priority of the target service is greater than the predetermined priority.
S10213, when the service priority is determined to be greater than the preset priority, determining that the terminal needs to switch the current BWP to be switched;
s10214, when the service priority is not greater than the preset priority, it is determined that the terminal does not need to switch the current BWP to the BWP to be switched.
As the smaller the parameter value of the service priority is, the higher the priority of the target service is, for the target service with higher service priority, the target service can be made to use the current BWP, i.e. the terminal does not need to switch the current BWP to the BWP to be switched; for the target service with lower service priority, the target service is switched from the current BWP to the BWP to be switched, and a smaller bandwidth is used to improve the utilization rate of resources.
The preset priority is a parameter determined in advance by a person, and in this embodiment, the preset priority may be 30.
Referring to table 1, a comparison table of service priorities and handover delays for different types of services is provided in the embodiments of the present application:
TABLE 1
Figure BDA0002292076120000101
Figure BDA0002292076120000111
It should be noted that, only the service priority and the PDB-service parameter of the common service are listed in table 1, and the service priority and the PDB-service parameter of other services may search the mapping table of the QOS parameter of the 3GPP standard organization, which is not listed here.
S1022, when the target BW is not greater than the BWP to be switched and the service type of the target service is the low latency type service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency of switching from the current BWP to the BWP to be switched.
Optionally, as shown in fig. 6, the specific step of determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching delay from the current BWP to the BWP to be switched in step S1022 specifically includes: S10221-S10222:
s10221, when the switching delay is not greater than the preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched.
S10222, when the switching delay is greater than the preset delay, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
Because the low-latency service has a high requirement on the switching delay, when the target BW is not greater than the BWP to be switched and the service type of the target service is the low-latency service, that is, BWP _ n > BWP _ n +1 is greater than or equal to BWP _ C, the switching delay is only needed to be determined, and if the switching delay requirement is met, that is, when the switching delay is not greater than the preset delay, it is determined that the terminal needs to switch the current BWP to a smaller BWP to be switched, so as to improve the utilization rate of resources; when the switching delay requirement is not met, in order to ensure normal use of the service and meet the service requirement, no matter how high the service priority of the target service is, the terminal does not need to switch the current BWP to the BWP to be switched, but continues to use the current BWP.
S1023, when the target BW is larger than the BWP to be switched, the terminal is determined not to need to switch the current BWP to the BWP to be switched.
When the target BW is greater than the BWP to be switched, that is, BWP _ a/B > BWP _ n +1 or BWP _ C > BWP _ n +1, it indicates that the BWP to be switched cannot meet the target BW of the requirement of the target service, and it may be determined that the terminal does not need to switch the current BWP to the BWP to be switched.
It should be noted that, because a terminal can configure at most four UL BWPs and four DL BWPs, or can configure at most four BWP pairs, if BWP _ a/B is less than or equal to BWP _ n or BWP _ C is less than or equal to BWP _ n at this time, it indicates that the current BWP can meet the bandwidth requirement of the target service; if BWP _ A/B > BWP _ n or BWP _ C > BWP _ n at this moment, namely the bandwidth requirement of the target service can not be met by BWP at present, and all BWPs to be switched which are allocated to the terminal by the base station are all larger than the target BW, at this moment, the base station needs to carry out resource scheduling again, and allocates new BWP to the terminal so as to meet the target BW of the target service.
S103, when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW.
When the current BWP is smaller than the BWP to be switched, if the current BWP cannot meet the partial bandwidth requirement of the target service and the BWP to be switched meets the partial bandwidth requirement of the target service, the current BWP may be considered to be switched to the larger BWP, so that it may be directly determined whether the current BWP meets the target BW of the target service according to the size relationship between the current BWP and the target BW, and further determine whether the terminal needs to switch the current BWP to the BWP to be switched; therefore, optionally, when the current BWP is smaller than the BWP to be switched, as shown in fig. 7, the specific step of determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW in step S103 specifically includes: S1031-S1032:
and S1031, when the target BW is not larger than the current BWP, determining that the terminal does not need to switch the current BWP to be switched.
S1032, when the target BW is larger than the current BWP and not larger than the BWP to be switched, the terminal is determined to need to switch the current BWP to the BWP to be switched.
And S104, when the terminal is determined to need to switch the current BWP to the BWP to be switched, sending a switching instruction to the terminal.
Since the base station may obtain the target BW required by the target service performed by the terminal at the current time, the current BWP used by the terminal at the current time, the BWP to be switched, and the service type of the target service, so as to allocate and schedule the bandwidth resource of the terminal, when it is determined that the terminal needs to switch the current BWP to the BWP to be switched, the base station may send a switching instruction to the terminal, where the switching instruction is at least used to instruct the terminal to switch the current BWP to the BWP to be switched.
Optionally, as shown in fig. 8, an embodiment of the present application further provides another method for switching a bandwidth of a terminal part, where the method may include S201 to S2012:
s201, acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service.
S202, judging the size relationship between the current BWP and the BWP to be switched.
If the current BWP is larger than the BWP to be switched, S203 is executed; if the current BWP is smaller than the BWP to be switched, S204 is performed.
S203, judging whether the target BW is larger than the BWP to be switched.
If the target BW is not more than the BWP to be switched, executing S206; if the target BW is larger than the BWP to be switched, S2011 is executed.
S204, judging whether the target BW is larger than the current BWP.
If the target BW is larger than the current BWP, executing S205; if the target BW is not greater than the current BWP, S2011 is executed.
S205, determining that the target BW is not more than the BWP to be switched.
After S205 is performed, S2010 is performed.
S206, judging whether the service type of the target service is a low-delay service.
If the service type of the target service is judged to be the low-delay service, S208 is executed; if the service type of the target service is determined to be a non-low-delay service, S207 is executed.
And S207, judging whether the switching time delay is larger than a preset time delay.
If the switching delay is judged to be greater than the preset delay, executing S209; if the switching delay is not greater than the preset delay, executing S2010.
And S208, judging whether the switching time delay is larger than a preset time delay or not.
If the switching time delay is judged to be larger than the preset time delay, S2011 is executed; if the switching delay is not greater than the preset delay, executing S2010.
S209, judging whether the service priority of the target service is greater than the preset priority.
If the service priority of the target service is judged to be greater than the preset priority, executing S2010; if the service priority of the target service is not greater than the preset priority, S2011 is executed.
S2010, determining that the terminal needs to switch the current BWP to be switched.
After S2010, S2012 is executed.
S2011, it is determined that the terminal does not need to switch the current BWP to the BWP to be switched.
S2012, a switching instruction is sent to the terminal.
The method for switching the bandwidth of the terminal part provided by the embodiment of the application comprises the following steps: acquiring a target BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs; when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW; when determining that the terminal needs to switch the current BWP to the BWP to be switched, sending a switching instruction to the terminal; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched. According to the technical scheme provided by the application, when the target service of the terminal changes, the size relationship among the target BW required by the target service performed by the terminal at the current moment, the current BWP used by the terminal at the current moment and the BWP to be switched is analyzed; when the current BWP is smaller than the BWP to be switched, determining whether the current BWP meets the requirement of the target service only according to the size relationship between the current BWP and the target BW, that is, determining whether the terminal needs to switch the current BWP to the BWP to be switched by determining the size relationship between the current BWP and the target BW; when the current BWP is larger than the BWP to be switched, not only needs to consider whether the size relationship between the target BW required by the target service and the BWP to be switched satisfies the switching requirement, but also determines whether the terminal needs to switch the current BWP to the BWP to be switched according to the service type of the target service.
As shown in fig. 9, an embodiment of the present application further provides a terminal portion bandwidth switching device 03, where the terminal portion bandwidth switching device 03 includes: an acquisition module 31, a determination module 32 and a sending module 33.
The obtaining module 31 executes S101 in the above method embodiment, the determining module 32 executes S102 and S103 in the above method embodiment, and the sending module 33 executes S104 in the above method embodiment.
Specifically, the obtaining module 31 is configured to obtain a target BW required by a target service performed by the terminal at the current time, a current BWP used by the terminal at the current time, a BWP to be switched, and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs;
a determining module 32, configured to determine, when the current BWP acquired by the acquiring module 31 is greater than the BWP to be switched, whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BW and the BWP to be switched acquired by the acquiring module 31 and the service type of the target service;
the determining module 32 is further configured to determine, when the current BWP acquired by the acquiring module 31 is smaller than the BWP to be switched, whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP acquired by the acquiring module 31 and the target BW;
a sending module 33, configured to send a switching instruction to the terminal when the determining module 32 determines that the terminal needs to switch the current BWP to the BWP to be switched; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched.
Optionally, when the current BWP acquired by the acquiring module 31 is greater than the BWP to be switched, the determining module 32 is specifically configured to: when the target BW acquired by the acquisition module 31 is not greater than the BWP to be switched, and the service type of the target service acquired by the acquisition module 31 is a non-low-latency service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency for switching from the current BWP to the BWP to be switched and the service priority of the target service; when the target BW acquired by the acquiring module 31 is not greater than the BWP to be switched, and the service type of the target service acquired by the acquiring module 31 is the low-latency class service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency of switching from the current BWP to the BWP to be switched.
Optionally, when the target BW acquired by the acquiring module 31 is not greater than the BWP to be switched, and the service type of the target service acquired by the acquiring module 31 is a non-low-latency service, the determining module 32 is specifically configured to: when the switching delay is not greater than the preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; when the switching delay is greater than the preset delay, judging whether the service priority of the target service is greater than the preset priority; when the service priority is determined to be greater than the preset priority, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the service priority is not greater than the preset priority, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
Optionally, when the target BW acquired by the acquiring module 31 is not greater than the BWP to be switched, and the service type of the target service acquired by the acquiring module 31 is a low latency type service, the determining module 32 is specifically configured to: when the switching delay is not greater than the preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the switching delay is greater than the preset delay, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
Optionally, the preset time delay is the sum of the first parameter and the second parameter; the first parameter is the time delay of data packet transmission between the terminal and the anchor point; the second parameter is the handover delay tolerance.
Optionally, the preset time delay is the sum of a third parameter and a second parameter; the third parameter is the product of the time delay of data packet transmission between the terminal and the anchor point and a preset value; the second parameter is the switching delay tolerance; the preset value is a number not less than 0 and not more than 1.
Optionally, when the current BWP acquired by the acquiring module 31 is greater than the BWP to be switched, the determining module 32 is specifically configured to: when the target BW acquired by the acquiring module 31 is greater than the BWP to be switched, it is determined that the terminal does not need to switch the current BWP to the BWP to be switched.
Optionally, when the current BWP acquired by the acquiring module 31 is smaller than the BWP to be switched, the determining module 32 is specifically configured to: when the target BW acquired by the acquisition module 31 is not greater than the current BWP, it is determined that the terminal does not need to switch the current BWP to the BWP to be switched; when the target BW acquired by the acquisition module 31 is greater than the current BWP and is not greater than the BWP to be switched, it is determined that the terminal needs to switch the current BWP to the BWP to be switched.
The application provides terminal part bandwidth auto-change over device includes: the device comprises an acquisition module, a determination module and a sending module; the acquisition module can acquire the target BW required by the target service performed by the terminal at the current moment, the current BWP used by the terminal at the current moment, the BWP to be switched and the service type of the target service; the determining module is used for determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched acquired by the acquiring module and the service type of the target service when the current BWP acquired by the acquiring module is larger than the BWP to be switched; the determining module is further configured to determine whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP acquired by the acquiring module and the target BW when the current BWP acquired by the acquiring module is smaller than the BWP to be switched; when the determining module determines that the terminal needs to switch the current BWP to the BWP to be switched, the sending module sends a switching instruction to the terminal; the switching instruction is at least used for indicating the terminal to switch the current BWP into the BWP to be switched. According to the technical scheme provided by the application, when the target service of the terminal changes, the size relationship among the target BW required by the target service performed by the terminal at the current moment, the current BWP used by the terminal at the current moment and the BWP to be switched is analyzed; when the current BWP is smaller than the BWP to be switched, determining whether the current BWP meets the requirement of the target service only according to the size relationship between the current BWP and the target BW, that is, determining whether the terminal needs to switch the current BWP to the BWP to be switched by determining the size relationship between the current BWP and the target BW; when the current BWP is larger than the BWP to be switched, not only needs to consider whether the size relationship between the target BW required by the target service and the BWP to be switched satisfies the switching requirement, but also determines whether the terminal needs to switch the current BWP to the BWP to be switched according to the service type of the target service.
As shown in fig. 10, the present embodiment further provides a terminal portion bandwidth switching apparatus, which includes a memory 41, a processor 42, a bus 43, and a communication interface 44; the memory 41 is used for storing computer execution instructions, and the processor 42 is connected with the memory 41 through a bus 43; when the terminal portion bandwidth switching device is operating, processor 42 executes computer-executable instructions stored in memory 41 to cause the terminal portion bandwidth switching device to perform the terminal portion bandwidth switching method provided in the embodiments described above.
In particular implementations, processor 42(42-1 and 42-2) may include one or more Central Processing Units (CPUs), such as CPU0 and CPU1 shown in FIG. 10, as one example. And as an example, the terminal portion bandwidth switching means may include a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 10. Each of the processors 42 may be a single-Core Processor (CPU) or a multi-Core Processor (CPU). Processor 42 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).
The memory 41 may be, but is not limited to, a read-only memory 41 (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 41 may be self-contained and coupled to the processor 42 via a bus 43. The memory 41 may also be integrated with the processor 42.
In a specific implementation, the memory 41 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. The processor 42 may terminate various functions of the apparatus by running or executing software programs stored in the memory 41 and invoking data stored in the memory 41.
The communication interface 44 is any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 44 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
The bus 43 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an extended ISA (enhanced industry standard architecture) bus, or the like. The bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The embodiment of the application further provides a computer storage medium, wherein the computer storage medium stores instructions, and when the computer executes the instructions, the computer is enabled to execute the terminal part bandwidth switching method provided by the embodiment.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a RAM, a ROM, an erasable programmable read-only memory (EPROM), a register, a hard disk, an optical fiber, a CD-ROM, an optical storage device, a magnetic storage device, any suitable combination of the foregoing, or any other form of computer readable storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (18)

1. A method for switching bandwidth of a terminal part is characterized by comprising the following steps:
acquiring a target bandwidth BW required by a target service performed by a terminal at the current moment, a current BWP used by the terminal at the current moment, a BWP to be switched and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs;
when the current BWP is larger than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BWP and the BWP to be switched and the service type of the target service; the specific method comprises the following steps:
when the target BW is not larger than the BWP to be switched and the service type of the target service is a non-low-latency service, determining whether the terminal needs to switch the current BWP to be switched according to the switching latency for switching from the current BWP to the BWP to be switched and the service priority of the target service;
when the target BW is not larger than the BWP to be switched and the service type of the target service is a low-latency service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency of switching from the current BWP to the BWP to be switched;
when the current BWP is smaller than the BWP to be switched, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW;
when determining that the terminal needs to switch the current BWP to the BWP to be switched, sending a switching instruction to the terminal; the switching instruction is at least used for indicating the terminal to switch the current BWP to the BWP to be switched.
2. The method for terminal-side bandwidth switching according to claim 1, wherein when the target BW is not greater than the BWP to be switched and the traffic type of the target traffic is a non-low-latency traffic, the determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency for switching from the current BWP to the BWP to be switched and the traffic priority of the target traffic comprises:
when the switching delay is not greater than a preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; when the switching delay is greater than the preset delay, judging whether the service priority of the target service is greater than the preset priority;
when the service priority is determined to be greater than the preset priority, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the service priority is determined not to be greater than the preset priority, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
3. The method for terminal-side bandwidth switching according to claim 1, wherein when the target BW is not greater than the BWP to be switched and the traffic type of the target traffic is low-latency traffic, the determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the switching latency for switching from the current BWP to the BWP to be switched comprises:
when the switching delay is not greater than a preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the switching delay is greater than the preset delay, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
4. The method for switching the bandwidth of the terminal part according to claim 2 or 3, wherein the preset time delay is the sum of a first parameter and a second parameter; the first parameter is the time delay of data packet transmission between the terminal and the anchor point; the second parameter is a handover delay tolerance.
5. The method for switching the bandwidth of the terminal part according to claim 2 or 3, wherein the preset time delay is the sum of a third parameter and a second parameter; the third parameter is the product of the time delay of data packet transmission between the terminal and the anchor point and a preset value; the second parameter is the switching delay tolerance; the preset value is a number not less than 0 and not more than 1.
6. The method for terminal bandwidth switching according to claim 1, wherein when the current BWP is greater than the BWP to be switched, the determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BW and the BWP to be switched and the service type of the target service further comprises:
and when the target BW is larger than the BWP to be switched, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
7. The method for terminal segment bandwidth switching according to claim 1, wherein when the current BWP is smaller than the BWP to be switched, the determining whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP and the target BW comprises:
when the target BW is not larger than the current BWP, determining that the terminal does not need to switch the current BWP to the BWP to be switched; and when the target BW is larger than the current BWP and not larger than the BWP to be switched, determining that the terminal needs to switch the current BWP to the BWP to be switched.
8. A terminal portion bandwidth switching device, comprising: the device comprises an acquisition module, a determination module and a sending module;
the acquiring module is configured to acquire a target BW required by a target service performed by a terminal at a current time, a current BWP used by the terminal at the current time, a BWP to be switched, and a service type of the target service; the target BW, the current BWP and the BWP to be switched are all uplink BWPs or all downlink BWPs;
the determining module is configured to determine, when the current BWP acquired by the acquiring module is greater than the BWP to be switched, whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the target BW and the BWP to be switched acquired by the acquiring module and the service type of the target service; the determining module is specifically configured to:
when the target BW acquired by the acquisition module is not greater than the BWP to be switched, and the service type of the target service acquired by the acquisition module is a non-low-latency class service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to a switching latency for switching from the current BWP to the BWP to be switched and a service priority of the target service;
the determining module is specifically further configured to: when the target BW acquired by the acquisition module is not greater than the BWP to be switched and the service type of the target service acquired by the acquisition module is a low-latency class service, determining whether the terminal needs to switch the current BWP to the BWP to be switched according to a switching latency for switching from the current BWP to the BWP to be switched;
the determining module is further configured to determine, when the current BWP acquired by the acquiring module is smaller than the BWP to be switched, whether the terminal needs to switch the current BWP to the BWP to be switched according to the size relationship between the current BWP acquired by the acquiring module and the target BW;
the sending module is configured to send a switching instruction to the terminal when the determining module determines that the terminal needs to switch the current BWP to the BWP to be switched; the switching instruction is at least used for indicating the terminal to switch the current BWP to the BWP to be switched.
9. The apparatus for switching a terminal portion bandwidth according to claim 8, wherein when the target BW acquired by the acquiring module is not greater than the BWP to be switched, and the service type of the target service acquired by the acquiring module is a non-low latency class service, the determining module is specifically configured to:
when the switching delay is not greater than a preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; when the switching delay is greater than the preset delay, judging whether the service priority of the target service is greater than the preset priority;
when the service priority is determined to be greater than the preset priority, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the service priority is determined not to be greater than the preset priority, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
10. The apparatus for switching a terminal portion bandwidth according to claim 8, wherein when the target BW acquired by the acquiring module is not greater than the BWP to be switched, and the service type of the target service acquired by the acquiring module is a low latency class service, the determining module is specifically configured to:
when the switching delay is not greater than a preset delay, determining that the terminal needs to switch the current BWP to the BWP to be switched; and when the switching delay is greater than the preset delay, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
11. The terminal part bandwidth switching device according to claim 9 or 10, wherein the preset time delay is a sum of a first parameter and a second parameter; the first parameter is the time delay of data packet transmission between the terminal and the anchor point; the second parameter is a handover delay tolerance.
12. The terminal part bandwidth switching device according to claim 9 or 10, wherein the preset time delay is a sum of a third parameter and a second parameter; the third parameter is the product of the time delay of data packet transmission between the terminal and the anchor point and a preset value; the second parameter is the switching delay tolerance; the preset value is a number not less than 0 and not more than 1.
13. The terminal portion bandwidth switching apparatus according to claim 8, wherein when the current BWP acquired by the acquiring module is greater than the BWP to be switched, the determining module is specifically configured to:
when the target BW acquired by the acquisition module is larger than the BWP to be switched, determining that the terminal does not need to switch the current BWP to the BWP to be switched.
14. The terminal portion bandwidth switching apparatus according to claim 8, wherein when the current BWP acquired by the acquiring module is smaller than the BWP to be switched, the determining module is specifically configured to:
when the target BW acquired by the acquisition module is not larger than the current BWP, determining that the terminal does not need to switch the current BWP to the BWP to be switched; when the target BW acquired by the acquisition module is larger than the current BWP and not larger than the BWP to be switched, determining that the terminal needs to switch the current BWP to the BWP to be switched.
15. A terminal part bandwidth switching device is characterized by comprising a memory, a processor, a bus and a communication interface; the memory is used for storing computer execution instructions, and the processor is connected with the memory through the bus; when the terminal portion bandwidth switching device is running, a processor executes the computer-executable instructions stored by the memory to cause the terminal portion bandwidth switching device to perform the terminal portion bandwidth switching method of any one of claims 1-7.
16. A computer storage medium having stored therein instructions which, when executed by a computer, cause the computer to execute the terminal part bandwidth switching method according to any one of claims 1 to 7.
17. A base station, characterized in that it comprises a terminal part bandwidth switching device according to any of claims 8-14.
18. A terminal part bandwidth switching system, characterized by comprising a terminal and a base station according to claim 17.
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