CN114666911B - BWP resource integration method and system of base station - Google Patents
BWP resource integration method and system of base station Download PDFInfo
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- CN114666911B CN114666911B CN202210566587.7A CN202210566587A CN114666911B CN 114666911 B CN114666911 B CN 114666911B CN 202210566587 A CN202210566587 A CN 202210566587A CN 114666911 B CN114666911 B CN 114666911B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/543—Allocation or scheduling criteria for wireless resources based on quality criteria based on requested quality, e.g. QoS
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Abstract
The invention relates to a BWP resource integration method and system of a base station, wherein the method comprises the following steps: the base station allocates an initial BWP and a dedicated BWP to the user equipment; the base station configures an active BWP for the user equipment according to the service demand of the user equipment; the active BWP comprises a small bandwidth active BWP and a large bandwidth active BWP; the base station counts the information of the user equipment for activating BWP; the base station has a resource utilization threshold, the resource utilization comprising a large bandwidth active BWP utilization; when the utilization rate of the large bandwidth activation BWP does not exceed the preset threshold and reaches the first preset time, the base station screens out the user equipment using the small bandwidth activation BWP according to the counted information of the user equipment using the activation BWP and switches the small bandwidth activation BWP to the large bandwidth activation BWP so as to improve the utilization rate of the large bandwidth activation BWP of the base station. The invention activates the BWP resource by integrating the large bandwidth, thereby improving the overall resource utilization rate of the base station.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to the field of 5G mobile communication technologies, and in particular, to a BWP resource integration method and system for a base station.
[ background of the invention ]
In a 5G mobile communication system, the 5G bandwidth can reach 400MHz at maximum, but the data service of one user equipment does not need to occupy 400MHz. BWP (Band Width Part), i.e. partial bandwidth, the BWP concept is introduced to divide partial bandwidth into the whole 5G bandwidth for the user equipment to access and transmit data traffic. After the BWP (Band Width Part) concept is introduced in the 5G mobile communication system, the data traffic of the user equipment can be adjusted to a BWP of the 5G bandwidth, and the BWP is used periodically with low power; and the bandwidth size used by the user equipment can be changed by configuring a different BWP to the user equipment.
At this stage, due to the influence of the resource utilization threshold or traffic threshold set by the base station, and in the case that only one active BWP can be configured to the ue at a time, part of the large bandwidth BWP resource is not fully used.
Therefore, it is desirable to provide an improved scheme.
[ summary of the invention ]
In order to solve the above technical problems, the present invention provides a BWP resource integration method and system for a base station to improve the utilization rate of a large bandwidth active BWP of the base station.
The invention provides a BWP resource integration method of a base station, which comprises the following steps:
s5, the base station allocates an initial BWP and a special BWP to the user equipment;
s7, the base station configures an active BWP for the user equipment according to the service demand of the user equipment; the active BWPs comprise a small bandwidth active BWP and a large bandwidth active BWP; the base station configures a small bandwidth activation BWP for the user equipment with small bandwidth service requirement for use by the user equipment, and configures a large bandwidth activation BWP for the user equipment with large bandwidth service requirement for use by the user equipment;
s9, the base station counts the information of the user equipment using the active BWP;
s11, the base station has a threshold value of resource utilization rate, wherein the resource utilization rate comprises a large bandwidth activation BWP utilization rate; when the utilization rate of the large bandwidth activation BWP does not exceed a preset threshold and reaches a first preset time; and the base station screens out the user equipment using the small-bandwidth active BWP according to the counted information of using the active BWP by the user equipment, and switches the small-bandwidth active BWP to a large-bandwidth active BWP so as to improve the utilization rate of the large-bandwidth active BWP of the base station.
As a preferred technical solution, the screened user equipment using small bandwidth to activate BWP is a user equipment using small bandwidth to activate BWP partially or completely.
As a preferred technical solution, the base station switches the screened user equipment using the small bandwidth active BWP to a large bandwidth active BWP through RRC reconfiguration or DCI.
As a preferred technical solution, the S11 further includes S110, when the utilization rate of the large bandwidth active BWP exceeds a preset threshold and reaches a second preset time, the base station switches the screened user equipment using the small bandwidth active BWP from the large bandwidth active BWP back to the small bandwidth active BWP.
As a preferred technical solution, the S110 further includes the base station sorting the screened user equipments using small bandwidth activation BWP to switch to large bandwidth activation BWP according to the size of the service demand of the user equipment, and switching the large bandwidth activation BWP of the user equipment using small bandwidth activation BWP screened with the largest service demand back to small bandwidth activation BWP; if the utilization rate of the large bandwidth activation BWP of the base station still exceeds a preset threshold value; continuing to switch the large bandwidth activation BWP screened out the user equipment using the small bandwidth activation BWP with the second large traffic demand back to the small bandwidth activation BWP, and so forth, and looping until the large bandwidth activation BWP utilization of the base station does not exceed the preset threshold, and the process returns to S9.
As a preferred technical solution, the base station issues an initial BWP and a dedicated BWP to the ue through any one of MIB message, SIB message, RRC reconfiguration message, and DCI message.
As a preferred technical solution, one user equipment configures up to four dedicated BWPs; during data service transmission, the ue can only activate one of the dedicated BWPs at a certain time as its active BWP at the current time.
The invention also provides a BWP resource integration system of the base station, comprising the base station and the user equipment, wherein the base station comprises a configuration module, a statistic module and a switching module, the configuration module is used for allocating an initial BWP and a special BWP to the user equipment and configuring an active BWP to the user equipment according to the service demand of the user equipment; the active BWPs comprise a small bandwidth active BWP and a large bandwidth active BWP; the configuration module is further configured to configure a small bandwidth activation BWP for the user equipment requiring the small bandwidth service for use by the user equipment and configure a large bandwidth activation BWP for use by the user equipment requiring the large bandwidth service; the statistic module is used for counting the information of the user equipment using the active BWP; the base station has a threshold of resource utilization, including a large bandwidth active, BWP, utilization; when the utilization rate of the large bandwidth activated BWP does not exceed a preset threshold and reaches a first preset time, the statistics module is further configured to screen out the user equipment using the small bandwidth activated BWP according to the information that the user equipment uses the activated BWP; the switching module is configured to switch the user equipment screened out to use the small-bandwidth active BWP from the small-bandwidth active BWP to a large-bandwidth active BWP;
the user equipment comprises a receiving module, wherein the receiving module is used for receiving an initial BWP and a special BWP issued by the base station; and is further configured to receive an active BWP configured by the base station according to the traffic demand of the user equipment.
As a preferred technical solution, the switching module is further configured to switch the screened user equipment using the small bandwidth active BWP to a large bandwidth active BWP through RRC reconfiguration or DCI.
As a preferred technical solution, the statistical module is further configured to sort the screened user equipments switched from small bandwidth activation BWP to large bandwidth activation BWP according to the size of the service demand of the user equipment; the switching module is further configured to switch the screened user equipment using the small-bandwidth active BWP from the large-bandwidth active BWP back to the small-bandwidth active BWP when the utilization of the large-bandwidth active BWP exceeds a preset threshold; further, the method is further configured to switch the screened out user equipment using small bandwidth active BWP with the maximum traffic demand back to small bandwidth active BWP; if the utilization rate of the large bandwidth activation BWP of the base station still exceeds a preset threshold value; continuing to switch the large bandwidth activation BWP of the screened user equipment using the small bandwidth activation BWP for the second large traffic demand back to the small bandwidth activation BWP, and so forth in a loop until the large bandwidth activation BWP utilization of the base station does not exceed the preset threshold.
The invention integrates the large bandwidth activation BWP resource of the base station, and improves the utilization rate of the large bandwidth activation BWP of the base station, thereby improving the overall resource utilization rate of the base station.
[ description of the drawings ]
To further illustrate the detailed description of the present invention, exemplary embodiments of the present invention are described in more detail below with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram illustrating a BWP resource integration method and system of a base station according to an embodiment of the present invention, where the base station issues an initial BWP and a dedicated BWP to a user equipment;
fig. 2 is a block diagram of a base station of a BWP resource integration system according to an embodiment of the present invention;
fig. 3 is a block diagram of a user equipment of a BWP resource integration system of a base station according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a BWP resource integration method of a base station according to an embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1 and fig. 2, a BWP resource integration system of a base station according to an embodiment of the present invention includes a base station 10 and a user equipment 30.
In mobile services, the base station 10 serves user equipment 30 within its control area. For example, in 5G mobile service, the base station 10 configures BWP to the user equipment 30; configuring different active BWPs for the ue 30 according to different service demands of the ue 30; active BWPs include small bandwidth active BWPs and large bandwidth active BWPs. In this way, the bandwidth of the user equipment 30 can be dynamically changed. At the first moment, the traffic of the ue 30 is large, and the base station 10 configures a large bandwidth active BWP for the ue 30; at another moment, the traffic of the ue 30 is smaller, and the base station 10 configures a small bandwidth active BWP for the ue 30 to meet the communication requirement. But on the other hand the base station 10 has a threshold of resource utilization including a large bandwidth active BWP utilization. That is, at one moment, the usage of the large bandwidth active BWP has a preset threshold, and the base station 10 can configure only the small bandwidth active BWP when the configuration and usage of the large bandwidth active BWP reaches the preset threshold.
Referring to fig. 2, the base station 10 includes a configuration module 11, a statistics module 13, and a handover module 15.
In this embodiment, the configuration module 11 is configured to allocate an initial BWP and a dedicated BWP to the user equipment 30, and configure an active BWP for the user equipment 30 according to the service requirement of the user equipment 30. The statistic module 13 is configured to count the information of the user equipment 30 using the active BWP, and further screen out the user equipment 30 using the small bandwidth active BWP according to the counted information of the user equipment 30 using the active BWP; the information of the active BWP includes the small bandwidth active BWP and the large bandwidth active BWP. The switching module 15 is configured to switch the small-bandwidth activation BWP screened out the user equipment 30 using the small-bandwidth activation BWP to the large-bandwidth activation BWP when the utilization of the large-bandwidth activation BWP does not exceed the preset threshold and reaches the first preset time; specifically, the switching module 15 is further configured to switch the small bandwidth activation BWP screened out the user equipment 30 using the small bandwidth activation BWP to the large bandwidth activation BWP through RRC reconfiguration or DCI.
Referring to fig. 3, the user equipment 30 includes a receiving module 31, where the receiving module 31 is configured to receive an initial BWP and a dedicated BWP issued by the base station 10; and is further configured to receive an active BWP configured by the base station 10 according to the traffic demand of the user equipment 30.
It should be noted that the initial BWP is the BWP randomly used by the user equipment 30 in the initial access phase. Dedicated BWPs are mainly used for data traffic transmission. The active BWP is to select a qualified BWP from the initial BWP and the dedicated BWP at a certain time and activate the BWP. The initial BWP is mainly used for the user equipment 30 to receive RMSI, OSI initiated random access, etc. While dedicated BWP is mainly used for data traffic transmission. Specifically, one user equipment 30 configures up to four dedicated BWPs; in data traffic transmission, the user equipment 30 can activate only one of the dedicated BWPs at a certain time as the active BWP at its current time.
Further, the statistical module 13 is further configured to sort the user equipments 30 screened out to be switched to the large bandwidth active BWP by using the small bandwidth active BWP according to the size of the service demand of the user equipments 30; the switching module 15 is further configured to switch the user equipment 30 screened out to use the small-bandwidth active BWP from the large-bandwidth active BWP back to the small-bandwidth active BWP when the utilization of the large-bandwidth active BWP exceeds a preset threshold; further, the switching module 15 is further configured to switch the large bandwidth activation BWP screened out by the maximum traffic demand to the small bandwidth activation BWP of the user equipment 30 using the small bandwidth activation BWP; for example, the utilization of the large bandwidth active BWP of the base station 10 still exceeds the preset threshold; the second large traffic demand screening out the large bandwidth active BWP of the user equipment using the small bandwidth active BWP is continuously switched back to the small bandwidth active BWP, and so on, until the large bandwidth active BWP utilization of the base station 10 does not exceed the preset threshold.
The BWP resource integration method of the base station of the BWP resource integration system of the base station of the present application is described in detail with reference to fig. 4, and the method includes the following steps executed in sequence:
s5, the base station 10 allocates an initial BWP and a special BWP to the user equipment 30;
s7, the base station 10 configures an active BWP for the user equipment 30 according to the service demand of the user equipment 30; the active BWP comprises a small bandwidth active BWP and a large bandwidth active BWP; the base station 10 configures a small bandwidth activation BWP for the user equipment 30 requiring the small bandwidth service to be used by the user equipment 30, and the base station 10 configures a large bandwidth activation BWP for the user equipment 30 requiring the large bandwidth service to be used by the user equipment 30;
s9, the base station 10 counts the information of the user equipment 30 using the active BWP;
s11, the base station 10 has a threshold value of resource utilization rate, wherein the resource utilization rate comprises a large bandwidth activation BWP utilization rate; when the utilization rate of the large bandwidth active BWP does not exceed the preset threshold and reaches the first preset time, the base station 10 screens out the user equipment 30 using the small bandwidth active BWP according to the counted information of the user equipment 30 using the active BWP, and switches the small bandwidth active BWP to the large bandwidth active BWP, so as to improve the utilization rate of the large bandwidth active BWP of the base station 10.
The above steps of method improve the utilization rate of the large bandwidth activation BWP of the base station 10 by integrating the large bandwidth activation BWP resources, thereby improving the overall resource utilization rate of the base station 10.
Specifically, in step S11, the user equipment 30 using the small bandwidth to activate BWP is screened out as the user equipment 30 using the small bandwidth to activate BWP partially or completely. It will be appreciated that the number of user devices 30 that switch from small-bandwidth active BWP to large-bandwidth active BWP is limited by a threshold of large-bandwidth active BWP utilization by the base station 10. When more user devices 30 use the small-bandwidth activation BWP at a certain moment, the base station 10 switches the user devices 30 that can screen out more use of the small-bandwidth activation BWP from the small-bandwidth activation BWP to the large-bandwidth activation BWP.
In step S5, the base station 10 issues the initial BWP and the dedicated BWP to the user equipment 30 through any one of the MIB message, SIB message, RRC reconfiguration message, and DCI message. (refer to FIG. 1)
Step S11 further includes step S110, when the utilization of the large bandwidth active BWP exceeds the preset threshold and reaches a second preset time, the base station 10 switches the large bandwidth active BWP screened out the user equipment 30 using the small bandwidth active BWP back to the small bandwidth active BWP. Specifically, the S110 further includes the base station 10 sorting the user equipments 30 screened out to use the small bandwidth active BWP to switch to the large bandwidth active BWP according to the size of the service demand of the user equipments 30 from large to small, and switching the large bandwidth active BWP screened out to use the small bandwidth active BWP with the largest service demand back to the small bandwidth active BWP; for example, the utilization of the large bandwidth active BWP of the base station 10 still exceeds the preset threshold; the bs 10 continues to switch the large-bandwidth activation BWP of the user equipment 30 screened out of the second large-traffic demand to use the small-bandwidth activation BWP back to the small-bandwidth activation BWP, and so on, and the process returns to S9 until the utilization of the large-bandwidth activation BWP of the bs 10 does not exceed the preset threshold.
The specific values of the first preset time in step S11 and the second preset time in step S110 may be flexibly set according to actual situations, and the specific values are not limited in the present application.
In this embodiment, the base station 10 switches the small bandwidth activation BWP screened out the user equipment 30 using the small bandwidth activation BWP to the large bandwidth activation BWP by RRC reconfiguration or DCI. Of course, the base station 10 also switches the large bandwidth active BWP screened out the user equipment 30 using the small bandwidth active BWP back to the small bandwidth active BWP by RRC reconfiguration or DCI.
Specifically, the RRC reconfiguration mode switches to: directly changing the ID of the first downlink active BWP and the ID of the first uplink active BWP in the BWP activation information. For example, the ID of the first downlink active BWP and the ID of the first uplink active BWP in the active BWP information currently configured by the base station 10 to the user equipment 30 are both 1, and the handover is completed by changing the ID of the first downlink active BWP and the ID of the first uplink active BWP in the active BWP information currently configured by the base station 10 to the user equipment 30 to 2.
For the mode switching of DCI (Downlink Control Information), the DCI comprises resource allocation Information, and DCI formats 0-1 and 1-1 are used for scheduling resources. Specifically, DCI format 0-1 indicates to schedule uplink data, and format 1-1 indicates to schedule downlink data; the DCI formats 0-1 and 1-1 have a Bandwidth part indicator field (Bandwidth part indicator field), and when the indication of the Bandwidth part indicator fields of the DCI formats 0-1 and 1-1 for activating BWP currently configured by the base station 10 to the user equipment 30 is changed and the Bandwidth part indicator fields of the DCI formats 0-1 and 1-1 for activating BWP are used to indicate inconsistency, the BWP is activated for handover.
The above examples merely represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications, such as combinations of different features in various embodiments, may be made without departing from the spirit of the invention, and these are within the scope of the invention.
Claims (10)
1. A BWP resource integration method of a base station, the method comprising:
s5, the base station allocates an initial BWP and a special BWP to the user equipment;
s7, the base station configures an active BWP for the user equipment according to the service demand of the user equipment; the active BWPs comprise small bandwidth active BWPs and large bandwidth active BWPs; the base station configures a small bandwidth activation BWP for the user equipment with small bandwidth service requirement for use by the user equipment, and configures a large bandwidth activation BWP for the user equipment with large bandwidth service requirement for use by the user equipment;
s9, the base station counts the information of the user equipment using the active BWP;
s11, the base station has a threshold value of resource utilization rate, and the resource utilization rate comprises a large bandwidth activation BWP utilization rate; when the utilization rate of the large bandwidth activation BWP does not exceed a preset threshold and reaches a first preset time, the base station screens out the user equipment using the small bandwidth activation BWP according to the counted information of the user equipment using the activation BWP and switches the small bandwidth activation BWP to the large bandwidth activation BWP, so as to improve the utilization rate of the large bandwidth activation BWP of the base station.
2. The method for resource consolidation of BWP of base station according to claim 1, wherein in S11, the screened out user equipments using small bandwidth to activate BWP are user equipments using small bandwidth to partially or fully activate BWP.
3. The method for resource consolidation of BWP of base station according to claim 1, wherein said base station switches the screened user equipments using said small bandwidth active BWP to large bandwidth active BWP through RRC reconfiguration or DCI.
4. The method for resource consolidation of BWP of base station according to claim 1, wherein in S11, further comprising S110, when the utilization rate of the large bandwidth active BWP exceeds a preset threshold and reaches a second preset time, the base station switches the large bandwidth active BWP screened out the user equipments using the small bandwidth active BWP back to the small bandwidth active BWP.
5. The BWP resource integration method of claim 4, wherein said S110 further comprises said bs sorting said screened user equipments using small bandwidth active BWP to switch to large bandwidth active BWP according to their traffic demands from large to small, and switching said screened user equipments using small bandwidth active BWP with the largest traffic demands back to small bandwidth active BWP; if the utilization rate of the large bandwidth activation BWP of the base station still exceeds a preset threshold value; continuing to switch the large bandwidth activation BWP screened out the user equipment using the small bandwidth activation BWP with the second large traffic demand back to the small bandwidth activation BWP, and so forth, and looping until the large bandwidth activation BWP utilization of the base station does not exceed the preset threshold, and the process returns to S9.
6. The method for resource consolidation of BWP of base station of claim 1, wherein the base station issues an initial BWP and a dedicated BWP to the ue through any one of MIB message, SIB message, RRC reconfiguration message, and DCI message.
7. The BWP resource integration method of claim 1, wherein one of the user equipments configures up to four of the dedicated BWPs; during data service transmission, the ue can only activate one of the dedicated BWPs at a certain time as its active BWP at the current time.
8. A BWP resource integration system of a base station, comprising a base station and a user equipment,
the base station comprises a configuration module, a statistic module and a switching module, wherein the configuration module is used for allocating an initial BWP and a dedicated BWP to the user equipment and configuring an active BWP to the user equipment according to the service demand of the user equipment; the active BWPs comprise a small bandwidth active BWP and a large bandwidth active BWP; the configuration module is further configured to configure a small bandwidth activation BWP for the user equipment requiring the small bandwidth service for use by the user equipment and configure a large bandwidth activation BWP for use by the user equipment requiring the large bandwidth service; the statistic module is used for counting the information of the user equipment using the active BWP; the base station has a threshold of resource utilization, including a large bandwidth active, BWP, utilization; when the utilization rate of the large bandwidth activated BWP does not exceed a preset threshold and reaches a first preset time, the counting module is further configured to screen out the user equipment using small bandwidth activated BWP according to the counted information of the user equipment using the activated BWP; the switching module is configured to switch the small-bandwidth activation BWP screened out the user devices using the small-bandwidth activation BWP to the large-bandwidth activation BWP;
the user equipment comprises a receiving module, wherein the receiving module is used for receiving an initial BWP and a special BWP issued by the base station; and is further configured to receive an active BWP configured by the base station according to the traffic demand of the user equipment.
9. The system for resource consolidation of BWP of base station of claim 8, wherein said switching module is further configured to switch the screened out user equipments using the small bandwidth active BWP to a large bandwidth active BWP by RRC reconfiguration or DCI.
10. The system for resource consolidation of BWP of base station of claim 8, wherein said statistics module is further configured to sort the user equipments screened out to switch to large bandwidth active BWP using small bandwidth active BWP according to the size of the traffic demand of said user equipments; the switching module is further configured to switch the screened user equipment using the small-bandwidth active BWP from the large-bandwidth active BWP back to the small-bandwidth active BWP when the utilization of the large-bandwidth active BWP exceeds a preset threshold; further, the method is further configured to switch the screened out user equipment using small bandwidth active BWP with the maximum traffic demand back to small bandwidth active BWP; if the utilization rate of the large bandwidth activation BWP of the base station still exceeds a preset threshold value; continuing to switch the large bandwidth activation BWP of the screened user equipment using the small bandwidth activation BWP for the second large traffic demand back to the small bandwidth activation BWP, and so forth in a loop until the large bandwidth activation BWP utilization of the base station does not exceed the preset threshold.
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| CN115102678B (en) * | 2022-08-24 | 2023-03-24 | 深圳国人无线通信有限公司 | BWP switching method and system for co-building shared base station to meet user service requirement |
| WO2024053857A1 (en) * | 2022-09-06 | 2024-03-14 | 삼성전자 주식회사 | Electronic device for determining whether to switch cellular communication on basis of use rate of bandwidth part, and operation method of electronic device |
| CN115604839B (en) * | 2022-11-29 | 2023-04-07 | 中国移动紫金(江苏)创新研究院有限公司 | Method, device, base station and electronic equipment for switching and scheduling partial bandwidth BWP |
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| CN102685904B (en) * | 2012-05-07 | 2015-04-01 | 中兴通讯股份有限公司 | Bandwidth self-adaptive allocation method and bandwidth self-adaptive allocation system |
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