CN106982435B - A capacity adjustment method and device for F-band hybrid networking - Google Patents

Abstract

The invention discloses a capacity adjustment method and a capacity adjustment device for an F frequency band hybrid networking, wherein the capacity adjustment method comprises the following steps: identifying the scene of the base station according to the telephone traffic prediction result; when the telephone traffic prediction result is greater than or equal to a telephone traffic reference threshold, identifying the scene as a first class scene; when the telephone traffic prediction result is smaller than a telephone traffic reference threshold, identifying that the scene is a second type of scene; when the first kind of scenes are identified, carrying out carrier expansion or single board expansion according to the number of access users and/or the service volume; when a second type of scene is identified, performing model classification on the service according to the flow of each RAB; and carrying out carrier expansion according to the number of access users and/or PRB utilization rate and/or cell flow aiming at the services of each model class.

Description

A capacity adjustment method and device for F-band hybrid networking

technical field

The present invention relates to time division long term evolution (TDL, Time Division-Long Term Evolution) technology of wireless communication, in particular to a hybrid networking of TDL and time division synchronous code division multiple access (TDS, Time Division-Synchronous Code Division Multiple Access) in the F frequency band Capacity adjustment method and device.

Background technique

The growth of data services is accompanied by the increase in resource utilization, and the capacity of a single carrier is becoming more and more difficult to support. Carrier expansion is required to support user needs and experience and ensure network security. At present, the F+D capacity expansion mode has become the mainstream. When the carrier resource utilization of the F-band is high and congestion occurs, the D-band is deployed for load sharing or traffic absorption.

For the expansion of the fourth generation (4G, 4Generation), the expansion standard is formulated, that is, when the wireless channel utilization rate of the cell is greater than or equal to 50%, and the number of effective Radio Resource Control (RRC, Radio Resource Control) connections in the cell is greater than or equal to 30, and The capacity expansion is only considered when the uplink throughput of the cell is greater than or equal to 1G or the downlink throughput is greater than or equal to 5G. There are three main reasons: 1) When the network load is less than 50%, the edge signal-to-interference and noise ratio (RS-SINR, Signal to Interference plus Noise Ratio) is greater than or equal to the network quality requirement of -3dB, so the capacity expansion threshold corresponding to the wireless channel utilization rate of the cell is 50%; 2) Under full load, the upper limit of the number of effective bearer users that the cell can meet the single-user 1Mbps rate is 30, so RRC The expansion threshold corresponding to the number of connections is 30; 3) When the network is planned to be 50% of the network load, the throughputs of the uplink and downlink cells are 1GB and 5GB respectively during busy hours, so the corresponding expansion thresholds of the uplink and downlink cell throughputs are 1GB and 5GB .

The current capacity expansion standards are too harsh. From the perspective of user experience, they cannot represent all business scenarios. The main reasons can be summarized as follows: 1) The physical resources in the capacity expansion standard are obtained by planning the cell edge rate of 1Mbps under 50% network load. Block (PRB, Physical Resource Block) utilization rate of 50% only meets the network quality; 2) It is the maximum number of effective RRC connection users obtained under the guaranteed rate of 1Mbps for a single user under the condition of full cell load; 3) Different cities due to data The composition of the service traffic package is different, and the user behavior and habits are different. As a result, the relationship between the guaranteed rate of the user, the PRB utilization rate, and the cell traffic cannot be consistent across the country.

On the other hand, TDS data services will gradually decrease, and frequency resources will be gradually released. In particular, the release of F-band resources occupied by TDS networks will facilitate the integration of 4G network frequency resources. Through the removal of the F-band of the TDS network, the advantages of direct equipment upgrade can be used to carry out 20M+10M dual-band networking, reducing equipment investment. For the application research of 20M+10M in the F frequency band, there is still no complete research plan, especially in the aspect of scene, which kind of scene is more suitable for this frequency combination is still blank.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, embodiments of the present invention provide a capacity adjustment method and device for F-band hybrid networking.

The method for adjusting the capacity of the F-band hybrid networking provided by the embodiment of the present invention includes:

Identify the scene of the base station according to the traffic prediction result; when the traffic prediction result is greater than or equal to the traffic reference threshold, identify the scene as the first type of scene; when the traffic prediction result is less than the traffic reference When the threshold is reached, the scene is identified as the second type of scene;

When the first type of scenario is identified, carry out carrier expansion or board expansion according to the number of access users and/or traffic;

When the second type of scenario is identified, the services are modeled according to the traffic of each radio access bearer (RAB, Radio Access Bearer). , Physical Resource Block) utilization rate and/or cell traffic, and carry out carrier expansion.

In the embodiment of the present invention, when the first type of scenario is identified, the carrier expansion or board expansion is performed according to the number of access users and/or the traffic volume, including:

For the first type of scenario, when the maximum number of Radio Resource Control (RRC, Radio Resource Control) connections is greater than or equal to the first threshold, the carrier expansion is performed; when the maximum number of simultaneous active users of the base station is greater than or equal to the second threshold, the hardware expansion is performed.

In the embodiment of the present invention, when the second type of scenario is identified, the service is modeled and classified according to the RAB traffic carried by each radio access, including:

For the second type of scenario, when the traffic per RAB is greater than the first threshold, the service is classified as a large packet model; when the traffic per RAB is less than the second threshold, the service is classified as a small packet model; when the traffic per RAB is in the When it is between the first threshold and the second threshold, the service is classified as a mid-package model.

In the embodiment of the present invention, for the services of each model category, the carrier expansion is performed according to the number of access users and/or the PRB utilization rate of the physical resource block and/or the cell traffic, including:

For the large-packet model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the large-packet model, carrier expansion is performed;

For the middle-package model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the middle-package model, carrier expansion is performed;

For the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, carrier expansion is performed.

In the embodiment of the present invention, the method further includes:

If the secondary carrier configuration of the time division synchronous code division multiple access TDS cell is less than or equal to 8, and some carriers are configured as the F frequency band, all the F frequency band carriers of the TDS cell are replaced with the A frequency band;

If the secondary carrier configuration of the TDS cell is larger than 8, the F-band can be cleared by frame division, service rate downshift and GTL interoperability in combination with the service model of the cell. The cleared F-band can be used for carrier expansion.

The capacity adjustment device for F-band hybrid networking provided by the embodiment of the present invention includes:

The identification unit is used to identify the scene of the base station according to the traffic prediction result; when the traffic prediction result is greater than or equal to the traffic reference threshold, identify that the scene is the first type of scene; When the result is less than the traffic reference threshold, the scene is identified as the second type of scene;

a first capacity expansion control unit, configured to perform carrier capacity expansion or single board capacity expansion according to the number of access users and/or traffic volume when the first type of scenario is identified;

The second capacity expansion control unit is used to classify the services according to the model of each RAB traffic when the second type of scenario is identified; for the services of each model category, according to the number of access users and/or the PRB utilization rate and/or the cell traffic, and carry out carrier expansion.

In the embodiment of the present invention, the first capacity expansion control unit is further configured to:

For the first type of scenario, when the maximum number of RRC connections is greater than or equal to the first threshold, carrier expansion is performed; when the maximum number of simultaneously activated users of the base station is greater than or equal to the second threshold, hardware expansion is performed.

In the embodiment of the present invention, the second capacity expansion control unit includes:

The model classification subunit is used for the second type of scenario, when the traffic per RAB is greater than the first threshold, the service is classified as a large packet model; when the traffic per RAB is less than the second threshold, the service is classified as a small packet model ; When the traffic per RAB is between the first threshold and the second threshold, classify the service as a medium packet model.

In the embodiment of the present invention, the second capacity expansion control unit further includes:

The expansion control subunit is used for carrying out carrier expansion for the large packet model when the average number of RRC connections, the PRB utilization rate and the cell traffic are all greater than or equal to the threshold corresponding to the large packet model; for the medium packet model, When the average number of RRC connections, the PRB utilization rate and the cell traffic are all greater than or equal to the threshold corresponding to the medium packet model, the carrier expansion is performed; for the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, the carrier expansion is performed .

In the embodiment of the present invention, the device further includes:

The capacity reduction control unit is used to replace all the F-band carriers of the TDS cell with the A-band if the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, and there are carriers configured as the F frequency band; if the secondary carrier configuration of the TDS cell is greater than 8 blocks , in combination with the service model of the cell, frame division, service rate downshift, and GTL interoperability are adopted to clear the F-band, and the cleared F-band can be used for carrier expansion.

In the technical solution of the embodiment of the present invention, the scenario of the base station is identified according to the traffic prediction result; when the first type of scenario is identified, the carrier expansion or the single board expansion is performed according to the number of access users and/or the traffic volume; When the second type of scenario is identified, the services are modeled according to the RAB traffic carried by each radio access; for the services of each model category, according to the number of access users and/or the PRB utilization rate of physical resource blocks and/or cell traffic , carry out carrier expansion. If the secondary carrier configuration of the TDS cell is less than or equal to 8, and some carriers are configured as the F-band, replace all the F-band carriers of the TDS cell with the A-band; Frame division, service rate downshift, and GTL interoperability are used to clear the F-band, wherein the cleared F-band can perform carrier expansion. The embodiments of the present invention make up for the blank in the research field of the applicable scenario of 20M+10M frequency networking by using the F frequency band. The use of the F-band 20M+10M frequency network improves the frequency band utilization, avoids the large-scale investment brought by the deployment of the D-band, and can directly maximize the utilization of resources through equipment upgrades, reducing the cost of investment and improving investment returns. Compare. In addition, the scenario-based capacity expansion method researched from the perspective of user perception makes up for the insufficiency of capacity expansion requirements considered from a single network quality dimension, and the capacity expansion standards and algorithms are more suitable for scenario-based needs.

Description of drawings

1 is a schematic flowchart of a capacity adjustment method for F-band hybrid networking according to an embodiment of the present invention;

2 is a flow chart of a 4G single-frequency network capacity expansion according to an embodiment of the present invention;

3 is a schematic diagram of capacity expansion based on a business model according to an embodiment of the present invention;

FIG. 4 is a flow chart of TDS network capacity reduction according to an embodiment of the present invention;

5 is a schematic diagram of TDS frequency band division according to an embodiment of the present invention;

FIG. 6 is a schematic structural composition diagram of a capacity adjustment device for F-band hybrid networking according to an embodiment of the present invention.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiment of the present invention aims to reduce the capacity of the TDS network F frequency band without affecting the TDS or at the minimum network quality cost, so as to support the 4G network to implement 20M+10M dual-frequency networking in the F frequency band.

The embodiments of the present invention synergistically consider service hotspot areas, TDS and TDL network quality and service development requirements, and maximize the bandwidth utilization of the TDL network in the F frequency band while fully ensuring the availability of the TDS network. Specific solutions are put forward for the evaluation and optimization of TDS and TDL network capacity in service hotspot areas.

FIG. 1 is a schematic flowchart of a capacity adjustment method for F-band hybrid networking according to an embodiment of the present invention. As shown in FIG. 1 , the method includes the following steps:

Step 101: Identify the scene of the base station according to the traffic prediction result.

In the embodiment of the present invention, the results of identifying the scenarios of the base station are: a first type of scenario and a second type of scenario. When the traffic prediction result is greater than or equal to the traffic reference threshold, the scene is identified as the first type of scene; when the traffic prediction result is less than the traffic reference threshold, the scene is identified as the second type of scene ; Among them, the first type of scenarios refers to large traffic scenarios, such as universities, stadiums, conference venues, etc., such scenarios are mainly characterized by high data traffic or a large number of users; the second type of scenarios refers to conventional capacity expansion scenarios. The business performance of similar scenarios is relatively stable, such as urban hotspots.

Step 102: When the first type of scenario is identified, according to the number of access users and/or the traffic volume, the carrier capacity expansion or the single board capacity expansion is performed.

In the embodiment of the present invention, for the first type of scenario, when the maximum number of RRC connections is greater than or equal to the first threshold, carrier expansion is performed; when the maximum number of simultaneous active users of the base station is greater than or equal to the second threshold, hardware expansion is performed.

Here, the first threshold and the second threshold may be flexibly set according to specific conditions of the first type of scene.

Step 103: When the second type of scenario is identified, the services are modeled according to the RAB traffic carried by each radio access; for the services of each model category, according to the number of access users and/or physical resource block PRB utilization and/or or cell traffic, and carry out carrier expansion.

In the embodiment of the present invention, for the second type of scenario, when the flow of each RAB is greater than the first threshold, the service is classified as a large-packet model; when the flow of each RAB is less than the second threshold, the service is classified as a small-packet model; when When the traffic of each RAB is between the first threshold and the second threshold, the traffic is classified as a medium packet model.

Here, the first threshold and the second threshold may be flexibly set according to the specific conditions of the second type of scenario.

In the embodiment of the present invention, for the large packet model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the large packet model, carrier expansion is performed;

For the middle-package model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the middle-package model, carrier expansion is performed;

For the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, carrier expansion is performed.

In the embodiment of the present invention, the method further includes: a capacity reduction process, which specifically includes: if the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, and some carriers are configured as the F frequency band, replacing all the F frequency band carriers of the TDS cell with A frequency band; if the secondary carrier configuration of the TDS cell is larger than 8, the F frequency band can be cleared by frame division, service rate downshift and GTL interoperability in combination with the service model of the cell. The cleared F frequency band can be used for carrier expansion.

The method for adjusting the capacity of the F-band hybrid networking according to the embodiment of the present invention will be further described in detail below with reference to specific scenarios.

The frequency combination of 20M+10M for the TDL network in the F-band is an ideal choice for capacity expansion. Under the coexistence of TDL and TDS networks, in order to maximize the access rate of TDL network users, according to the current situation of low TDS utilization, After identifying the usage scenarios (ie colleges, business districts, etc.) and business models (ie, large-packet, small-packet, and medium-packet business models), the F frequency of TDS is cleared according to the demand as a bandwidth supplement for the TDL network. , to significantly improve the user perception of the TDL network.

The capacity adjustment method for F-band hybrid networking according to the embodiment of the present invention includes two parts: a TDL network capacity expansion process and a TDS network capacity reduction process, wherein the TDL network capacity reduction process will be triggered after the TDL network capacity expansion process is executed.

Referring to FIG. 2 , FIG. 2 is a flow chart of capacity expansion of a 4G single-frequency network according to an embodiment of the present invention. The following describes the capacity expansion flow of 4G in an embodiment of the present invention in detail.

As shown in Figure 2, the 4G single-frequency network expansion process mainly includes: scene identification, service model identification, and capacity expansion judgment. Through the implementation of key nodes in the process, the expansion of the current network can be implemented. specifically:

1) Scene recognition

Scenarios are mainly divided into two categories: one refers to large traffic scenarios, such as universities, stadiums, conference venues, etc., which are mainly characterized by high data traffic or a large number of users; the other refers to conventional capacity expansion scenarios. The business performance of similar scenarios is relatively stable, such as urban hotspots.

2) Business model identification

For large-traffic scenarios (burst traffic scenarios), first consider whether a large number of users are accessing. If the number of access users is large, then the carrier capacity is expanded. If the number of access users is small but the traffic volume is large, board capacity expansion can be considered. For regular capacity expansion, focus on the traffic per RAB during busy hours. The traffic per RAB can be obtained through the 4G network management during busy hours. By judging the traffic of each RAB during busy hours, services can be divided into large-packet model, medium-packet model (between small-packet and large-packet), and small-packet model.

3) Expansion Judgment

The objects of capacity expansion judgment mainly include three categories, namely, the number of users, the PRB utilization rate during busy hours, and the traffic of a single cell during busy hours.

The following describes the 4G single-frequency network expansion process:

Capacity expansion is based on user perception. Through the mobile broadband service (MBB, Mobile Broadband) web browsing test and analysis of large websites such as Sina, Sohu, NetEase, and Tencent, it is concluded that the page browsing delay is inversely proportional to the number of users, and the web page opens. The rate is inversely proportional to the number of users. Extracting service data from 9:00 to 10:00 shows that the service experience after 9:20 is higher than the experience baseline; real-time download and display through MBB test File Transfer Protocol (FTP, File Transfer Protocol), the downlink throughput in the cell The rate is inversely proportional to the user.

For the expansion of 2G and 3G networks, it is only necessary to consider a single "resource utilization rate" for expansion. For the expansion of data services of 4G network, a single "resource utilization rate" cannot fully characterize the capacity requirements. From the perspective of user perception, consider factors such as PRB utilization, number of RRC connected users, uplink and downlink traffic, and the maximum number of users in a cell.

From a business perspective, services can be divided into small-package models, medium-package models, and large-package models. Different business scenarios have different capacity expansion thresholds, and different dimensions need to be considered. For example, the large-package model needs to consider PRB utilization, effective RRC connection users The small packet model focuses on considering the number of valid RRC connection users. Referring to Table 1, Table 1 gives the conditions and suggestions for expanding the capacity of various services.

Table 1

For large-package services (services corresponding to large-package models), such as videos, users pay more attention to the buffering time and the number of playback freezes; for small-package services (services corresponding to small-package models), such as WEB browsing, users pay more attention to page loading time. Studies have shown that more than 95% of the experimenters maintain good attention within 2 seconds, and the attention begins to disperse after 3 seconds, that is, the user's waiting time is less than 3 seconds, which means an excellent network.

Since a single user occupies a large amount of physical resources for large-package (video) services, if the number of users does not reach 30, the utilization rate will increase sharply and the user rate will decrease, which will affect the service perception. Therefore, it is necessary to comprehensively consider the number of users, PRB utilization, and Influence of cell service on user perception. Studies have shown that the capacity expansion threshold of large-package services is: the downlink PRB utilization rate is greater than or equal to 40%, the cell traffic is greater than 2.8GB, and the number of RRC valid connection users is greater than 12.

The mid-package service (the service corresponding to the mid-package model) is a mixture of large-package and small-package services whose proportion is uncertain. Therefore, in the capacity expansion evaluation, there are two types of cell expansion standards in the mid-package scenario:

1) Capacity expansion based on user experience: mid-package scenario-aware capacity expansion threshold: user rate 3.2M, PRB utilization 42%, traffic 3GB, and the number of valid RRC connection users 17;

2) Capacity expansion based on network carrying capacity: When the maximum number of users in a cell exceeds 150, user service perception and network carrying capacity will deteriorate in the mid-package scenario, so capacity expansion is recommended.

In an area with too many users but low traffic volume, due to the limited network access bearer (signaling side), user access is difficult and there are many dropped calls, which has a worse impact on user perception. When expanding the capacity, the number of connected users should be considered. In the small packet scenario, when the number of users (including data transmission and non-data transmission users) is greater than 160, the user webpage service display delay obviously exceeds the 3s perception threshold and the fluctuation increases. It is recommended to consider carrier expansion when the number of cell users exceeds 160. Therefore, the capacity expansion algorithm of 4G single frequency network can be summarized as shown in Figure 3.

It can be seen that the capacity expansion process of the embodiment of the present invention includes: identifying and classifying according to the scene to which the specific base station belongs; for common application scenarios, analyzing the traffic of each RAB, if the traffic of each RAB is greater than 0.2MB, analyzing its RRC average according to the large packet model Whether the number of connections, PRB utilization, and traffic are all greater than the threshold, and if so, expand the capacity. If the traffic of each RAB is less than 0.2MB, analyze whether the maximum number of RAB connections is greater than the threshold according to the small packet model. In large traffic scenarios such as conference rooms, hardware expansion is performed for those whose maximum number of active users of the base station at the same time reaches the threshold, and carrier expansion is performed for those whose maximum number of RRC connection users reaches the threshold. At this point, the TDS capacity reduction process is triggered to confirm that it can be used for TDL. the majority of the frequency.

Referring to FIG. 4 , FIG. 4 is a flow chart of capacity reduction of a TDS network according to an embodiment of the present invention. The following is a detailed description of the flow of capacity reduction of a TDS network in the embodiment of the present invention.

After completing the TDL capacity expansion requirement statistics, the TDS capacity reduction calculation will be started.

Mobile stipulates that the A-band 15M bandwidth (2010MHz ~ 2025MHz) is allocated to TDS. According to the requirement of 1.6MHz bandwidth per carrier, the A-band can be configured with a maximum of 9 carriers. Due to the large number of access users and large business scale in some hotspot areas, the A-band 9 carriers cannot meet the demand, so the F-band 1905MHz to 1915MHz is used as the TDS supplementary frequency band, and the 10MHz bandwidth brings the capacity of 6 carriers. The TDS frequency band division is shown in Figure 5.

With the deployment of LTE networks, TDS services gradually decrease, and the utilization rate of carrier frequency resources begins to decline. TDS carriers in the F-band can be cleared to support the development needs of LTE services and effectively improve the utilization rate of frequency bands.

As shown in Figure 4, the TDS network capacity reduction process mainly considers the F-band carrier configuration and TDS network service quality. Through the study of key nodes in the process, the implementation of the current TDS network F-band carrier clearing is realized.

1) Carrier configuration

The A-band supports a maximum of 9 carrier configurations. Usually, the main carrier is configured as the A-band. Therefore, a maximum of 8 A-band secondary carriers can be configured. When the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, the A-band can meet the configuration requirements 100%, and it is only necessary to configure the occupied F-band carrier as the A-band; when the secondary carrier configuration of the TDS cell is greater than 8, the TDS The cell carrier must use the F-band. Therefore, when clearing the F-band carrier, the service indicators and user experience of the TDS cell need to be considered.

2) GTL interoperability

GTL interoperability is interoperability between LTE, TDS, and GSM.

At present, the coverage area of the LTE network has exceeded the coverage of the TDS network. You can consider disabling the redirection function from the LTE network to the TDS network and retain the reselection and redirection functions from the TDS to LTE network, thereby reducing the proportion of services residing on the TDS network. Support the implementation of TDS capacity reduction.

Based on the interoperability strategy of the existing network, simplify the interoperability between LTE and TDS;

No reselection and redirection from LTE to TDS; TDS retains the reselection and redirection strategy from LTE to LTE;

Enable reselection and blind redirection from LTE to GSM; enable reselection from GSM to LTE, and no longer bridge through TDS;

3) Frame points

Frame points mainly include downlink 2 times frame points, downlink 4 times frame points and uplink 2 times frame points. Downlink 2x frame division multiplexing means that each 2 users jointly multiplex 2 SF=16 accompanying DPCH code resources on TS6 as the downlink accompanying channel; enable downlink 4x signaling frame division multiplexing and enable uplink 2x service frames Time-sharing, and DCCC parameters are configured. At this time, the uplink speed can be reduced to 8k, and 2 SF16 code channels are simultaneously occupied by another uplink 8K user, which is carried on TS1 or TS2; each uplink rate is 16k. SF=16 code resources, each uplink rate of 32k occupies 4 SF=16 code resources, and when the uplink rate is 64, it occupies 8 SF=16 code resources, and the current maximum uplink rate is set to 64k.

4) Downshift of business rate

Downshifting the service rate refers to lowering the service access guarantee rate according to the characteristics of the service to reduce the resource occupation of the access service. For example, the current minimum access rate of the video service is 64K. When the access rate is reduced to 16K, the excess resources are provided for other users to access.

5) Carrier bandwidth compression technology

The current carrier bandwidth is 1.6MHz, and the carrier bandwidth can be compressed to 1.4MHz through carrier compression technology. The possibility of interference between them has an impact on the service quality.

It can be seen that the capacity reduction process of the embodiment of the present invention includes: if the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, and there is a carrier configured as the F frequency band, then all the F frequency band carriers of the cell can be replaced with the A frequency band; The secondary carrier configuration is greater than 8. When clearing the F-band carrier, the user experience and service impact need to be considered, combined with GTL interoperability, frame division, access rate downgrade, carrier bandwidth compression and other technologies and other means to implement; therefore, for For TDS cells, first clear the F-band carriers within 8 carriers (replace them with A-band). For cells with more than 8 carriers, frame division, service rate downshift and GTL interoperability need to be combined with the cell's service model. F-band clears.

FIG. 6 is a schematic structural diagram of a capacity adjustment device for F-band hybrid networking according to an embodiment of the present invention. As shown in FIG. 6 , the capacity adjustment device for F-band hybrid networking includes:

The identification unit 61 is configured to identify the scene of the base station according to the traffic prediction result; when the traffic prediction result is greater than or equal to the traffic reference threshold, identify that the scene is the first type of scene; When the prediction result is less than the traffic reference threshold, it is recognized that the scene is the second type of scene;

The first capacity expansion control unit 62 is configured to perform carrier capacity expansion or single board capacity expansion according to the number of access users and/or traffic volume when the first type of scenario is identified;

The second capacity expansion control unit 63 is configured to, when the second type of scenario is identified, perform model classification according to the traffic of each RAB; for the services of each model type, according to the number of access users and/or the PRB utilization rate and/or Cell traffic, carry out carrier expansion.

In this embodiment of the present invention, the first capacity expansion control unit 62 is further configured to:

For the first type of scenario, when the maximum number of RRC connections is greater than or equal to the first threshold, carrier expansion is performed; when the maximum number of simultaneously activated users of the base station is greater than or equal to the second threshold, hardware expansion is performed.

In this embodiment of the present invention, the second capacity expansion control unit 63 includes:

The model classification subunit 631 is used for the second type of scenario, when the traffic per RAB is greater than the first threshold, the service is classified as a large packet model; when the traffic per RAB is less than the second threshold, the service is classified as a small packet model; when the traffic per RAB is between the first threshold and the second threshold, the traffic is classified as a medium-package model.

In this embodiment of the present invention, the second capacity expansion control unit 63 further includes:

The expansion control subunit 632 is used for carrying out carrier expansion for the large packet model when the average number of RRC connections, the PRB utilization rate and the cell traffic are all greater than or equal to the threshold corresponding to the large packet model; for the medium packet model , when the average number of RRC connections, PRB utilization and cell traffic are all greater than or equal to the threshold corresponding to the medium packet model, carry out carrier expansion; for the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, carry out carrier expansion Expansion.

In the embodiment of the present invention, the device further includes:

The capacity reduction control unit 64 is configured to replace all the F-band carriers of the TDS cell with the A-band if the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, and there are carriers configured as the F-band; if the secondary carrier configuration of the TDS cell is greater than 8 The block, combined with the service model of the cell, adopts frame division, service rate downshift and GTL interoperability to clear the F-band, wherein the cleared F-band can be used for carrier expansion.

Those skilled in the art should understand that the implementation function of each unit in the capacity adjustment device for F-band hybrid networking shown in FIG. 6 can be understood by referring to the foregoing description of the capacity adjustment method for F-band hybrid networking.

The technical solutions described in the embodiments of the present invention may be combined arbitrarily if there is no conflict.

In the several embodiments provided by the present invention, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms. of.

The unit described above as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may all be integrated into one second processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention.

Claims (8)

1. A capacity adjustment method for F-band hybrid networking, characterized in that the method comprises: Identify the scene of the base station according to the traffic prediction result; when the traffic prediction result is greater than or equal to the traffic reference threshold, identify the scene as the first type of scene; when the traffic prediction result is less than the traffic reference When the threshold is reached, the scene is identified as the second type of scene; When the first type of scenario is identified, carry out carrier expansion or board expansion according to the number of access users and/or traffic; When the second type of scenario is identified, the services are modeled according to the RAB traffic carried by each radio access; for the services of each model category, according to the number of access users and/or the PRB utilization rate of physical resource blocks and/or cell traffic , carry out carrier expansion; When the process of the carrier capacity expansion is completed, the TDS capacity reduction process is triggered; wherein, the TDS capacity reduction process includes: If the secondary carrier configuration of the time division synchronous code division multiple access TDS cell is less than or equal to 8, and some carriers are configured as the F frequency band, all the F frequency band carriers of the TDS cell are replaced with the A frequency band; If the secondary carrier configuration of the TDS cell is larger than 8, frame division, service rate downshift and GTL interoperation are adopted to clear the F frequency band in combination with the service model of the cell, wherein the cleared F frequency band can be used for carrier expansion. 2. the capacity adjustment method of F-band hybrid networking according to claim 1, is characterized in that, described when identifying the first type of scene, according to the number of access users and/or traffic, carry out carrier expansion or single Board expansion, including: For the first type of scenario, when the maximum number of RRC connections is greater than or equal to the first threshold, the carrier expansion is performed; when the maximum number of simultaneous active users of the base station is greater than or equal to the second threshold, the hardware expansion is performed. 3. the capacity adjustment method of F-band hybrid networking according to claim 1, is characterized in that, described when identifying the second type of scene, carry out model classification according to each wireless access bearer RAB traffic, including : For the second type of scenario, when the traffic per RAB is greater than the first threshold, the service is classified as a large packet model; when the traffic per RAB is less than the second threshold, the service is classified as a small packet model; when the traffic per RAB is in the When it is between the first threshold and the second threshold, the service is classified as a mid-package model. 4. The method for adjusting the capacity of F-band hybrid networking according to claim 3, wherein, for the services of each model category, according to the number of access users and/or physical resource block PRB utilization rate and/or cell traffic, carry out carrier expansion, including: For the large-packet model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the large-packet model, carrier expansion is performed; For the middle-package model, when the average number of RRC connections, the PRB utilization rate, and the cell traffic are all greater than or equal to the threshold corresponding to the middle-package model, carrier expansion is performed; For the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, carrier expansion is performed. 5. A capacity adjustment device for F-band hybrid networking, characterized in that the device comprises: The identification unit is used to identify the scene of the base station according to the traffic prediction result; when the traffic prediction result is greater than or equal to the traffic reference threshold, identify that the scene is the first type of scene; When the result is less than the traffic reference threshold, the scene is identified as the second type of scene; a first capacity expansion control unit, configured to perform carrier capacity expansion or single board capacity expansion according to the number of access users and/or traffic volume when the first type of scenario is identified; The second capacity expansion control unit is used to classify the services according to the model of each RAB traffic when the second type of scenario is identified; for the services of each model category, according to the number of access users and/or the PRB utilization rate and/or the cell traffic, carry out carrier expansion; A capacity reduction control unit, configured to trigger the TDS capacity reduction process when the carrier expansion process is completed; wherein, the TDS capacity reduction process includes: if the secondary carrier configuration of the TDS cell is less than or equal to 8 blocks, and there are carriers configured as F If the secondary carrier configuration of the TDS cell is larger than 8, frame division, service rate downshift and GTL interoperability are adopted to clear the F-band based on the service model of the cell. The frequency band, among which, the cleared F frequency band can carry out carrier expansion. 6. The capacity adjustment device for F-band hybrid networking according to claim 5, wherein the first capacity expansion control unit is further used for: For the first type of scenario, when the maximum number of RRC connections is greater than or equal to the first threshold, carrier expansion is performed; when the maximum number of simultaneously activated users of the base station is greater than or equal to the second threshold, hardware expansion is performed. 7. The capacity adjustment device for F-band hybrid networking according to claim 5, wherein the second capacity expansion control unit comprises: The model classification subunit is used for the second type of scenario, when the traffic per RAB is greater than the first threshold, the service is classified as a large packet model; when the traffic per RAB is less than the second threshold, the service is classified as a small packet model ; When the traffic per RAB is between the first threshold and the second threshold, classify the service as a medium packet model. 8. The capacity adjustment device for F-band hybrid networking according to claim 7, wherein the second capacity expansion control unit further comprises: The expansion control subunit is used for carrying out carrier expansion for the large packet model when the average number of RRC connections, the PRB utilization rate and the cell traffic are all greater than or equal to the threshold corresponding to the large packet model; for the medium packet model, When the average number of RRC connections, the PRB utilization rate and the cell traffic are all greater than or equal to the threshold corresponding to the medium packet model, the carrier expansion is performed; for the small packet model, when the maximum number of RRC connections is greater than or equal to the third threshold, the carrier expansion is performed .

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