CN105323783B - The dilatation appraisal procedure and device of wireless communication system - Google Patents

Abstract

Embodiments of the present invention disclose a method and device for evaluating capacity expansion of a wireless communication system. The method includes: determining a user experience rate and a user experience rate threshold; Expand the wireless communication system. The technical solution of the embodiment of the present invention evaluates whether the wireless communication system needs to be expanded from the perspective of user experience, and avoids the drawbacks of simply relying on the traditional wireless resource utilization evaluation solution, that is, a small number of users may occupy a large amount of bandwidth and cause wireless resource utilization. The problem of inappropriate or incorrect expansion caused by the high rate.

Description

Method and device for capacity expansion evaluation of wireless communication system

technical field

The present invention relates to a capacity expansion technology in a wireless communication system, in particular to a capacity expansion evaluation method and device for a wireless communication system.

Background technique

At present, the utilization rate of wireless resources is usually evaluated based on the occupancy of the physical carrier frequency resources of the wireless communication system, and the utilization rate of wireless resources is an important reference for evaluating the utilization of the wireless communication system, and also an important reference for the expansion or reduction of the capacity of the wireless communication system. index.

Radio resource utilization evaluation can reasonably characterize the use and load of network radio resources according to the resource usage characteristics of different network standards. For the Global System for Mobile Communications (GSM, Global System for Mobile Communications), the physical carrier frequency resources are divided into multiple time slots according to the time dimension. When a user uses the GSM network for communication services, one or more of them will be occupied. time slot. Therefore, the radio resource utilization of the GSM system is evaluated by the number of timeslots occupied by the carrier frequency during the busy time: in the statistical time period, the average number of timeslots occupied by a cell divided by the total number of timeslots that the cell can provide is the number of timeslots that the cell can provide. Radio resource utilization; for Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, TimeDivision-Synchronous Code Division Multiple Access) systems, the physical carrier frequency resources are divided into multiple A code channel, a user will occupy multiple code channels when using the TD-SCDMA system for communication services. Therefore, the radio resource utilization of the TD-SCDMA system is evaluated by the number of code channels occupied during busy hours: that is, in the statistical time period, the average number of code channels occupied by a cell divided by the total number of code channels that the cell can provide is the cell. Similarly, for a Long Term Evolution (LTE, Long Term Evolution) system, the occupancy of physical resources can also be used to evaluate the resource utilization of the LTE system. The physical carrier frequency resources of the LTE system are divided into multiple resource blocks according to the two dimensions of time and frequency, wherein the minimum resource allocation unit of the control channel is the Control Channel Element (CCE, Control Channel Element), and the minimum resource allocation unit of the traffic channel is the physical resource. Block (PRB, Physical Resource Block). Therefore, the radio resource utilization rate of the LTE system can be evaluated by considering the occupancy rate of the CCE of the control channel and the utilization rate of the traffic channel PRB when the cell is busy during the statistical time.

At present, for GSM and TD-SCDMA systems, radio resource utilization is an important reference index for evaluating system capacity expansion or reduction. For example, when the radio resource utilization is greater than a certain threshold during busy hours, carrier frequency expansion is required. For GSM and TD-SCDMA, the above-mentioned capacity expansion evaluation method of wireless communication system utilization is effective when each service occupies exclusive physical resources, that is, when the wireless resources occupied by each user's communication service are occupied at the beginning of the service If it is allocated and kept in the course of the service, the occupancy of the physical resources can reflect the utilization rate of the wireless communication system. This is because the allocation attribute of the exclusive resource prevents the physical resource from being occupied by other users during the user's communication process. Even if the user sometimes does not send data during the communication process, the physical resource is still reserved for the user and considered as occupied. Therefore, the occupation of wireless resources is relatively clear.

However, with the introduction of shared channel resources, the above situation of allocating radio resources to users has changed. From 3G's HSDPA (High Speed Downlink Packet Access, high-speed downlink packet access) to LTE, the physical resources of the system are no longer exclusively allocated to a certain user, but the network side comprehensively considers the user's data transmission needs and services. The priority of the user, the channel quality of the user, etc., the physical resources are scheduled to the required users in real time. Therefore, when the user's traffic volume is large, the network side may allocate more radio resources to the user; and when the user's traffic volume is small, the network side may allocate less radio resources to the user. Such a wireless resource allocation mechanism is more reasonable than the allocation method of dedicated channels, but it will produce such a phenomenon: when there are few users, a user with a large traffic volume may occupy all the physical resources on the cell or carrier frequency, and This situation often exists in HSPA (High Speed Packet Access, high-speed packet access) networks and LTE networks. In this scenario, if the physical resource is still occupied to evaluate the utilization rate of the network, it will produce the result that the utilization rate of radio resources is still very large in the case of few users. At this time, it is obviously inappropriate or even incorrect to use the utilization rate of physical resources to guide the expansion and reduction of network capacity.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the embodiments of the present invention provide a capacity expansion evaluation method and device of a wireless communication system, which can determine whether to perform capacity expansion according to the user experience rate, so that the wireless communication system can better provide services for users.

The technical solution of the embodiment of the present invention is realized as follows:

A capacity expansion evaluation method of a wireless communication system, comprising:

Determine the user experience rate and the user experience rate threshold;

comparing the user experience rate with the user experience rate threshold to obtain a comparison result;

Whether to expand the wireless communication system is determined according to the comparison result.

Preferably, the method further includes:

Determine the radio resource utilization rate in the wireless communication system, and compare the radio resource utilization rate with the set radio resource utilization rate threshold, when the radio resource utilization rate is greater than or equal to the set radio resource utilization rate When the rate threshold is reached, the capacity expansion of the wireless communication system is performed; otherwise, the capacity expansion of the wireless communication system is not performed.

A capacity expansion evaluation device of a wireless communication system, comprising: a first determination unit, a first comparison unit and a second determination unit, wherein,

a first determining unit, used for a user experience rate and a user experience rate threshold;

a first comparison unit, configured to compare the user experience rate with the user experience rate threshold to obtain a comparison result;

The second determination unit determines whether to expand the wireless communication system according to the comparison result.

Preferably, the device further comprises: a third determining unit and a second comparing unit, wherein,

a third determining unit, configured to determine the radio resource utilization rate in the wireless communication system;

a second comparing unit, configured to compare the radio resource utilization rate with a set radio resource utilization rate threshold, and trigger the radio resource utilization rate when the radio resource utilization rate is greater than or equal to the set radio resource utilization rate threshold The first determining unit, the first comparing unit, and the second determining unit perform capacity expansion of the wireless communication system, otherwise, do not perform capacity expansion of the wireless communication system.

In the embodiment of the present invention, it is first determined whether the radio resource utilization rate in the wireless communication system exceeds the set threshold, and when the radio resource utilization rate exceeds the set threshold, the user experience rate and the user experience rate threshold are determined, and the user experience rate is determined according to the user experience rate. The comparison result with the user experience rate threshold determines whether to expand the wireless communication system.

Compared with the prior art, the technical solution of the embodiment of the present invention evaluates whether the wireless communication system needs to be expanded from the perspective of user experience, and avoids the drawbacks of simply relying on the traditional wireless resource utilization evaluation solution, that is, a small number of users may The problem of inappropriate or incorrect capacity expansion caused by the high utilization of wireless resources due to occupying a large amount of bandwidth. The technical solutions of the embodiments of the present invention can also characterize the phenomenon that the user experience or user performance is degraded as the number of users increases under certain resources, and is very suitable for physical resources such as High Speed Downlink Packet Access (HSPA, High Speed Downlink PacketAccess) or LTE. are shared properties in wireless communication systems.

Description of drawings

1 is a flowchart of a method for evaluating capacity expansion of a wireless communication system according to an embodiment of the present invention;

2 is a schematic diagram of a composition structure of a capacity expansion evaluation device of a wireless communication system according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another composition of a capacity expansion evaluation apparatus of a wireless communication system according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

FIG. 1 is a flowchart of a method for evaluating capacity expansion of a wireless communication system according to an embodiment of the present invention. As shown in FIG. 1 , the method for evaluating capacity expansion of a wireless communication system in this example includes the following steps:

Step 101: Determine a user experience rate and a user experience rate threshold.

In the embodiment of the present invention, when determining whether to expand the wireless communication system, it is necessary to determine whether the current user experience rate of the wireless communication system exceeds the user experience rate threshold, or it is necessary to determine the users who access the wireless communication system within a set period of time. Whether the percentage of times the experience rate exceeds the user experience rate threshold or whether the number of times reaches the set threshold, when the current user experience rate exceeds the user experience rate threshold, or the user experience rate accessed by the wireless communication system within the set period exceeds the user experience rate The wireless communication system needs to be expanded only when the proportion or the number of times of the rate threshold reaches the set threshold.

In this embodiment of the present invention, before determining whether to perform capacity expansion, the radio resource utilization rate in the wireless communication system may also be determined, and the radio resource utilization rate is compared with the set radio resource utilization rate threshold. When the wireless resource utilization rate is greater than or equal to the set wireless resource utilization threshold, the wireless resource utilization rate of the wireless communication system is used to determine whether to expand the capacity. To determine the capacity expansion, it is not necessary to enable the method of using the user experience rate of the wireless communication system according to the embodiment of the present invention to perform the capacity expansion judgment.

In this embodiment of the present invention, the user experience rate may be calculated in the following manner:

in,

The number of connected users is the maximum or average value of the number of RRC connection users within the set period, or the maximum or average value of the number of RRC connection users with data transmission within the set period.

or, in,

or, in,

or, in,

or,

or, in,

or, in, N is the total number of users in a single cell, and M _i is the number of concurrent services of a single user.

The user experience rate threshold can be calculated in the following ways:

or,

Or, the user experience rate threshold = ∑ (the proportion of the number of users × the service target guaranteed rate);

or,

User Experience Rate Threshold

=∑(the proportion of the number of users × the service target guaranteed rate × the downlink (or uplink) service channel resource utilization threshold of a single cell);

or,

or,

Or, service-aware rate threshold=∑(service ratio×service target guaranteed rate); or,

Service-aware rate threshold

=∑(service ratio×service target guaranteed rate×single cell downlink (or uplink) service channel resource utilization threshold).

In this embodiment of the present invention, the user experience rate threshold may also be set as an empirical value.

For example, a user experience rate threshold is set based on a tariff policy. For example, when the user selects different data service packages or selects data service services with different fees, different experience thresholds are set for the user. The network side will guarantee the user experience threshold corresponding to the fees it pays. For example, different regions or different scenarios may be considered, or different thresholds may be set at different times (eg, in the early stage of network construction or after network maturity). Alternatively, a user experience rate threshold or a service perception rate threshold, etc. may be given based on the live network test.

Step 102: Compare the user experience rate with the user experience rate threshold to obtain a comparison result.

Step 103: Determine whether to expand the wireless communication system according to the comparison result.

In this embodiment of the present invention, the user experience rate is less than/less than or equal to or greater than or equal to/greater than the user experience rate threshold;

Correspondingly, in step 103, determining whether to expand the wireless communication system according to the comparison result, including:

When the user experience rate is less than (or less than or equal to) the user experience rate threshold, the wireless communication system is expanded; otherwise, the wireless communication system is not expanded.

In this embodiment of the present invention, the comparison result between the user experience rate and the user experience rate threshold is: the proportion or number of times that the user experience rate determined at a set interval is less than (or less than or equal to) the user experience rate threshold within a set period of time Exceeds the set threshold or does not exceed the set threshold;

Correspondingly, in step 103, determining whether to expand the wireless communication system according to the comparison result, including:

When the ratio or the number of times exceeds the set threshold, the wireless communication system is expanded; otherwise, the wireless communication system is not expanded.

The essence of the technical solutions of the embodiments of the present invention will be described in detail below through specific examples.

The present invention proposes a capacity expansion evaluation method based on user experience rate, and the main idea is as follows:

Compare the statistical or measured user experience rate with the user's experience rate threshold, and then make a capacity expansion judgment: once the statistical or measured user experience rate is lower than or equal to the user's experience rate threshold, the carrier frequency expansion is performed;

Or, count the number or proportion of the user experience rate that is counted or measured within a certain period of time is lower than or equal to the user experience rate threshold, and if the number or proportion is greater than a certain threshold, (carrier frequency) expansion is performed. For example, to count the results of one month, assuming that there is one measured user experience rate sample every day in one month, there are 30 measurement samples in total. Compare this sample with the user experience rate threshold, and assume that the number of samples below the threshold is x, and also assume that the proportion threshold is 50%, then if Then the carrier frequency expansion is required at this time.

It should be noted that the above-mentioned user experience rate and user experience rate threshold can distinguish between uplink and downlink, and the evaluation in one direction can be used as a benchmark for capacity expansion, such as selection based on resource occupation or rate bottleneck or other criteria. Only the uplink is selected for evaluation, otherwise, the downlink is selected for evaluation; the uplink and downlink can also be evaluated separately. No matter which direction the user experience rate is lower than the user experience rate threshold, capacity expansion is required.

This embodiment of the present invention can also be comprehensively considered in combination with the radio resource utilization rate, that is, for the evaluation of capacity expansion: first, the radio resource utilization rate evaluation is performed, if the statistical or measured radio resource utilization rate is greater than (or greater than or equal to) the radio resource utilization rate threshold , then further perform the expansion evaluation based on the user experience rate. If the user experience rate based on statistics or measurement is lower than the user experience rate threshold or a certain proportion or number of times is lower than the threshold value within a certain statistical time, the carrier frequency expansion is performed.

The statistical or measured radio resource utilization includes the CCE occupancy rate of the control channel PDCCH and/or the PRB utilization rate of the data channel PDSCH or PUSCH, and the method for comparing the radio resource utilization rate with the radio resource utilization threshold may include the following methods :

Take one of them as the final radio resource utilization and compare with the threshold, for example, compare the PRB utilization of PDSCH with a preset threshold; or

The maximum value among them (for example, max(CCE occupancy rate of PDCCH, PRB utilization rate of PDSCH, PRB utilization rate of PUSCH)) is used as the final radio resource utilization and compared with the preset threshold; max() means to take the the maximum value; or

The control channel CCE occupancy rate and the traffic channel PRB utilization rate are compared with preset thresholds respectively; if one of them is greater than the threshold, it is considered that the radio resource utilization rate condition is satisfied; or

The control channel CCE occupancy rate and the traffic channel PRB utilization rate are compared with the preset thresholds; if all the measurement results are greater than the threshold, it is considered that the radio resource utilization conditions are satisfied, for example, the control channel CCE occupancy rate is greater than the threshold 1, and the PDSCH service The channel PRB utilization rate is greater than the threshold 2, and the PUSCH service channel PRB utilization rate is greater than the threshold 3;

In the embodiment of the present invention, the user experience rate and the user experience rate threshold are counted or measured in the following manner.

In this embodiment of the present invention, the user-perceived rate may be used as the user-experienced rate; the user-perceived rate is determined by one of the following methods:

User Perceived Rate 1, this indicator represents the transmission rate perceived by a single (valid) connected user under full resource load within the statistical time period.

in:

The statistical time here can be the busiest time, or six busy hours, such as 8:00 am to 11:00 am, and 6:00 pm to 8:00 pm;

The average number of PRBs occupied and the average number of available PRBs of the physical downlink shared channel PDSCH (PDSCH, Physical Downlink Shared Channel) or the physical uplink shared channel (PUSCH, Physical Uplink Shared Channel) refer to the statistical results within the statistical time period;

The number of connected users may refer to the number of radio resource control (RRC, Radio Resource Control) connected users (maximum value or average value) or the number of valid RRC connected users (maximum value or average value). The number of RRC connected users specifically refers to: obtaining the number of RRC connections that exist in a given cell at the same time by sampling at a preset measurement time interval, and then taking the maximum value or the average value.

The number of valid RRC connection users refers to the average number of RRC connections with data transmission. Take 100ms as a cycle, record the number of valid RRC connections, and take the maximum value or average value of each cycle. Within every 100ms, if any E-RAB related to a certain RRC has data transmission, the RRC connection is regarded as valid.

User Perceived Rate 2: This indicator represents the transmission rate perceived by a single (valid) connected user under a certain resource load requirement within the statistical time period.

Wherein, the relevant indicators and meanings in the formula are completely the same as the previous formula, and the downlink (or) uplink traffic channel resource utilization threshold of a single cell can be a preset threshold;

User-perceived rate 3: This indicator represents the transmission rate perceived by a single (valid) connected user under the current resource load within the statistical time period.

Among them: the statistical time can be the busiest hour or the six busy hours;

The number of connected users may refer to the number of RRC connected users (maximum value or average value) or the number of valid RRC connected users (maximum value or average value). It can be the statistical result within the statistical time period. The specific definitions of the parameters in the formula are exactly the same as above.

User-perceived rate 4: This indicator represents the transmission rate experienced by a single (effective) connected user under full resource load within the effective transmission duration.

Wherein, the effective transmission duration refers to the duration of the actual data transmission within the statistical duration, which may be the total duration of the service for sending data at the Packet Data Convergence Protocol (PDCP, Packet Data Convergence Protocol) layer. The statistical time can be the busiest hour or the six busy hours;

Among them, the average number of PRBs occupied by PDSCH or PUSCH and the average number of available PRBs refer to the statistical results within the effective transmission time;

The number of connected users may refer to the number of RRC connected users (maximum value or average value) or the number of valid RRC connected users (maximum value or average value). Here, it can be the statistical result within the statistical duration, or it can be the result within the effective transmission duration.

User-perceived rate 5: This indicator represents the transmission rate perceived by a single (effective) connected user under a certain resource load requirement within the effective transmission duration.

The relevant indicators in the formula have the same meanings as above, and the downlink (or) uplink traffic channel resource utilization threshold of a single cell may be a preset threshold.

User perceived rate 6: This indicator represents the transmission rate perceived by a single (valid) connected user under the current resource load within the effective transmission duration.

Wherein, the effective transmission duration refers to the duration of the actual data transmission within the statistical duration, which may be the total duration of the service in which data is sent by the PDCP layer of the cell. The statistical time can be the busiest hour or the six busy hours;

The number of connected users may refer to the number of RRC connected users (maximum value or average value) or the number of valid RRC connected users (maximum value or average value). Here, it can be the statistical result within the statistical duration, or it can be the result within the effective transmission duration.

In this embodiment of the present invention, the statistical service perception rate may also be used as the user's experience rate, and the user's service perception rate may be determined by the following formula:

in, N is the total number of users in a single cell, and M _i is the number of concurrent services of a single user.

In this embodiment of the present invention, the user-perceived rate threshold may be used as the user-experienced rate threshold; specifically, the user-perceived rate threshold may be determined in the following ways;

User Perceived Rate Threshold 1: This indicator indicates the transmission rate limit perceived by a single user under full resource load within the statistical time period.

The proportion of users represents the proportion of users in a single cell that transmits the service, which is equal to the number of users in a single cell that transmits the service divided by the total number of users in a single cell.

The service target guaranteed rate indicates the rate at which service transmission or user experience can be guaranteed to meet certain requirements, or the rate achieved under certain service quality requirements.

User Perceived Rate Threshold 2: This indicator represents the transmission rate threshold perceived by a single user under a certain resource load requirement within the statistical time period.

The resource utilization threshold may be determined according to networking planning or performance testing.

User Perceived Rate Threshold 3: This indicator represents the transmission rate threshold perceived by a single user under full resource load within the effective transmission duration.

User-perceived rate threshold 3 = ∑ (proportion of users × service target guaranteed rate)

User-perceived rate 4: This indicator represents the threshold of the transmission rate perceived by a single user under a certain resource load requirement within the effective transmission duration.

User-perceived rate threshold

=∑(the proportion of the number of users×the service target guaranteed rate×the downlink (or uplink) service channel resource utilization threshold of a single cell).

In this embodiment of the present invention, the service-aware rate threshold may also be used as the user experience rate threshold; the service-aware rate threshold may be determined in the following ways:

Service-aware rate threshold 1: This indicator indicates the expected transmission rate limit of a single service under full resource load within the statistical time period.

Among them, the service ratio indicates the ratio of the service transmitted by a single cell.

The service target guaranteed rate indicates the rate at which service transmission or user experience can be guaranteed to meet certain requirements, or the rate achieved under certain service quality requirements.

Service-aware rate threshold 2: This indicator indicates the expected transmission rate threshold of a single service under a certain resource load within the statistical time period.

The resource utilization threshold may be determined according to networking planning or performance testing.

Service-aware rate threshold 3: This indicator indicates the expected transmission rate threshold of a single service under full resource load within the effective transmission duration.

Service-aware rate threshold 3 = ∑ (service ratio × service target guaranteed rate)

Service-aware rate threshold 4: This indicator represents the expected transmission rate threshold of a single service under a certain resource load requirement within the effective transmission duration.

Service-aware rate threshold 4

=∑(service ratio × service target guaranteed rate × single-cell downlink (or uplink) service channel resource utilization threshold)

In this embodiment of the present invention, a predefined rate threshold may also be used as the user experience rate threshold. That is, the aforementioned user-perceived rate threshold or service-perceived rate threshold in the embodiment of the present invention may be predefined.

For example, a user experience threshold is set based on a tariff policy. For example, when the user selects different data service packages or selects data service services with different fees, different experience thresholds are set for the user. The network side will guarantee the user experience threshold corresponding to the fees it pays. For example, different regions or different scenarios may be considered, or different thresholds may be set at different times (eg, in the early stage of network construction or after network maturity). Alternatively, a user experience rate threshold or a service perception rate threshold, etc. may be given based on the live network test.

The following will further illustrate the essence of the technical solutions of the embodiments of the present invention through specific examples.

In this embodiment of the present invention, if the statistical or measured radio resource utilization rate is greater than the radio resource utilization rate threshold, and one of the following conditions is satisfied, capacity expansion is performed:

If the statistical or measured user perceived rate 1 is less than the user perceived rate threshold 1 or 2, the capacity is expanded;

If the statistic or measured user-perceived rate 2 is less than the user-perceived rate threshold 1 or 2, capacity expansion is performed;

If the statistic or measured user perceived rate 3 is less than the user perceived rate threshold 1 or 2, the capacity is expanded;

If the statistic or measured user perceived rate 4 is less than the user perceived rate threshold 3 or 4, capacity expansion is performed;

If the statistic or measured user perceived rate 5 is less than the user perceived rate threshold 3 or 4, the capacity is expanded;

If the statistic or measured user perceived rate 6 is less than the user perceived rate threshold 3 or 4, capacity expansion is performed;

If the statistic or measured service sensing rate 1 is less than the service sensing rate threshold 1 or 2, capacity expansion is performed;

If the statistical or measured service perception rate 2 is less than the service perception rate threshold 1 or 2, the capacity is expanded;

If the statistical or measured service sensing rate 3 is less than the service sensing rate threshold 1 or 2, the capacity is expanded;

If the statistical or measured service perception rate 4 is less than the service perception rate threshold 3 or 4, capacity expansion is performed;

If the statistic or measured service sensing rate 5 is less than the service sensing rate threshold 3 or 4, the capacity is expanded;

If the statistic or measured service sensing rate 6 is less than the service sensing rate threshold 3 or 4, capacity expansion is performed;

If the statistical or measured user perceived rate 1/2/3/4/5/6 is less than (or less than or equal to) the predefined user perceived rate threshold, capacity expansion is performed;

If the statistical or measured service sensing rate 1/2/3/4/5/6 is less than (or less than or equal to) the predefined service sensing rate threshold, capacity expansion is performed;

Here, an embodiment of a user-perceived rate threshold is given, as shown in Table 1 below:

Table 1

Then the user perception threshold 1 is:

An embodiment of a service-aware rate threshold is given below, as shown in Table 2 below:

Table 2

Then the service perception threshold 1 is:

The technical solutions of the embodiments of the present invention support the setting and adjustment of user experience thresholds. Network maintenance staff can configure different user experience thresholds for networks in different areas based on actual network conditions. After the user experience threshold is configured, the value of the threshold can be changed. Usually, the user experience threshold changes infrequently.

FIG. 2 is a schematic diagram of the composition and structure of an apparatus for evaluating capacity expansion of a wireless communication system according to an embodiment of the present invention. As shown in FIG. 2 , the apparatus for evaluating capacity expansion for a wireless communication system in this example includes a first determining unit 20 , a first comparing unit 21 , and a first determining unit 20 . Two determination unit 22, wherein,

a first determining unit 20, used for a user experience rate and a user experience rate threshold;

a first comparison unit 21, configured to compare the user experience rate with the user experience rate threshold to obtain a comparison result;

The second determination unit 22 determines whether to expand the wireless communication system according to the comparison result.

FIG. 3 is another schematic structural diagram of a capacity expansion evaluation device for a wireless communication system according to an embodiment of the present invention. As shown in FIG. 3 , the capacity expansion evaluation device for a wireless communication system in this example includes a first determining unit 20 and a first comparing unit 21 , the second determination unit 22, the third determination unit 23 and the second comparison unit 24, that is, the third determination unit 23 and the second comparison unit 24 are added on the basis of the device shown in FIG. 2; wherein,

a first determining unit 20, used for a user experience rate and a user experience rate threshold;

a first comparison unit 21, configured to compare the user experience rate with the user experience rate threshold to obtain a comparison result;

The second determination unit 22 determines whether to expand the wireless communication system according to the comparison result.

a third determining unit 23, configured to determine the radio resource utilization rate in the wireless communication system;

The second comparison unit 24 is configured to compare the radio resource utilization rate with the set radio resource utilization rate threshold, and when the radio resource utilization rate is greater than or equal to the set radio resource utilization rate threshold, trigger the set radio resource utilization rate threshold. The first determining unit 20 , the first comparing unit 21 and the second determining unit 22 perform capacity expansion of the wireless communication system, otherwise, do not perform capacity expansion of the wireless communication system.

In the embodiment of the present invention, the comparison result is: the user experience rate is less than/less than or equal to or greater than or equal to/greater than the user experience rate threshold;

Correspondingly, the second determining unit 22 is further configured to expand the capacity of the wireless communication system when the user experience rate is less than or equal to the user experience rate threshold, otherwise, do not perform the capacity expansion of the wireless communication system Expansion.

In the embodiment of the present invention, the comparison result is: the proportion or the number of times that the user experience rate determined at the set interval within the set time period is less than or equal to the user experience rate threshold exceeds the set threshold or does not exceed the set threshold threshold;

Correspondingly, the second determining unit 22 is further configured to perform capacity expansion of the wireless communication system when the ratio or the number of times exceeds a set threshold, otherwise, do not perform capacity expansion of the wireless communication system.

In this embodiment of the present invention, the third determining unit 23 is further configured to:

Determine the occupancy rate of the control channel element CCE of the physical downlink control channel PDCCH as the radio resource utilization rate;

And/or, determining the physical resource block PRB utilization rate of the physical downlink shared channel PDSCH and/or the physical uplink shared channel PUSCH, as the radio resource utilization rate;

Correspondingly, the second comparison unit 24 is also used for:

When the occupancy rate of the control channel element CCE of the PDCCH is greater than or equal to a preset threshold, and the PRB utilization rate of the PDSCH or PUSCH is greater than or equal to a preset threshold, it is determined that the radio resource utilization rate is greater than or equal to The set radio resource utilization threshold;

Or, when at least one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization rate greater than or equal to the set radio resource utilization threshold;

Or, when the largest one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization The rate is greater than or equal to the set radio resource utilization threshold;

Or, when the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH are all greater than or equal to a set threshold, it is determined that the radio resource utilization rate is greater than or greater than Equal to the set radio resource utilization threshold.

In this embodiment of the present invention, the first determining unit 20 is further configured to determine the user experience rate in the following manner:

in,

The number of connected users is the maximum or average value of the number of RRC connection users within the set period, or the maximum or average value of the number of RRC connection users with data transmission within the set period;

or, in,

or, in,

or, in,

or,

or, in,

or, in, N is the total number of users in a single cell, and M _i is the number of concurrent services of a single user.

In this embodiment of the present invention, the first determining unit 20 is further configured to determine the user experience rate threshold in the following manner:

or,

Or, the user experience rate threshold = ∑ (the proportion of the number of users × the service target guaranteed rate);

or,

or,

or,

Or, service-aware rate threshold=∑(service ratio×service target guaranteed rate);

or,

Service-aware rate threshold

=∑(service ratio×service target guaranteed rate×single cell downlink (or uplink) service channel resource utilization threshold).

Those skilled in the art should understand that the implementation function of each processing unit in the capacity expansion evaluation apparatus of the wireless communication system shown in FIG. 2 and FIG. Those skilled in the art should understand that the functions of each processing unit in the capacity expansion evaluation device of the wireless communication system shown in FIG. 2 and FIG. 3 can be implemented by a program running on the processor or by a specific logic circuit.

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, apparatus and electronic 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 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 integration The unit can be realized in the form of hardware, or can be realized in the form of hardware plus application function unit.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions related to hardware, the aforementioned program can be stored in a computer-readable storage medium, and when the program is executed, execute Including the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and other various A medium on which program code can be stored.

Alternatively, if the above-mentioned integrated unit in the embodiment of the present invention is implemented in the form of an application function module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present invention essentially or the parts that make contributions to the prior art can be embodied in the form of application products, and the computer application products are stored in a storage medium and include several instructions for A computer device (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a removable storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and other media that can store program codes.

The protection scope of the present invention is not limited to this, and those skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention, which should all be included within the protection scope of the present invention.

Claims (14)

1. a capacity expansion evaluation method of a wireless communication system, is characterized in that, described method comprises: Determine the user experience rate and the user experience rate threshold; comparing the user experience rate with the user experience rate threshold to obtain a comparison result; Determine whether to expand the wireless communication system according to the comparison result; wherein, The determining the user experience rate threshold includes: or, Or, the user experience rate threshold = ∑ (the proportion of the number of users × the service target guaranteed rate); or, User experience rate threshold = ∑ (the proportion of users × service target guaranteed rate × single cell downlink (or uplink) service channel resource utilization threshold); The proportion of the number of users is equal to the number of users in a single cell transmitting the service divided by the total number of users in a single cell. 2. The method according to claim 1, wherein the method further comprises: Determine the radio resource utilization rate in the wireless communication system, and compare the radio resource utilization rate with the set radio resource utilization rate threshold, when the radio resource utilization rate is greater than or equal to the set radio resource utilization rate When the rate threshold is reached, the capacity expansion of the wireless communication system is performed; otherwise, the capacity expansion of the wireless communication system is not performed. 3. The method according to claim 1, wherein the comparison result is: the user experience rate is less than/less than or equal to or greater than or equal to/greater than the user experience rate threshold; Correspondingly, determining whether to expand the wireless communication system according to the comparison result, including: When the user experience rate is less than or equal to the user experience rate threshold, the capacity expansion of the wireless communication system is performed; otherwise, the capacity expansion of the wireless communication system is not performed. 4. The method according to claim 1, wherein the comparison result is: the user experience rate determined at a set interval within a set time period is less than or less than or equal to the user experience rate threshold The ratio or the number of times Exceeds the set threshold or does not exceed the set threshold; Correspondingly, determining whether to expand the wireless communication system according to the comparison result, including: When the ratio or the number of times exceeds the set threshold, the capacity expansion of the wireless communication system is performed; otherwise, the capacity expansion of the wireless communication system is not performed. 5. The method according to claim 2, wherein the determining the radio resource utilization rate in the wireless communication system comprises: Determine the occupancy rate of the control channel element CCE of the physical downlink control channel PDCCH as the radio resource utilization rate; And/or, determining the physical resource block PRB utilization rate of the physical downlink shared channel PDSCH and/or the physical uplink shared channel PUSCH, as the radio resource utilization rate; Correspondingly, when the wireless resource utilization rate is greater than or equal to the set wireless resource utilization rate threshold, performing capacity expansion of the wireless communication system, including: When the occupancy rate of the control channel element CCE of the PDCCH is greater than or equal to a preset threshold, and the PRB utilization rate of the PDSCH or PUSCH is greater than or equal to a preset threshold, it is determined that the radio resource utilization rate is greater than or equal to The set radio resource utilization threshold; Or, when at least one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization rate greater than or equal to the set radio resource utilization threshold; Or, when the largest one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization The rate is greater than or equal to the set radio resource utilization threshold; Or, when the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH are all greater than or equal to a set threshold, it is determined that the radio resource utilization rate is greater than or greater than Equal to the set radio resource utilization threshold. 6. The method according to claim 1, wherein the determining the user experience rate comprises: in, The number of connected users is the maximum or average value of the number of RRC connection users within the set period, or the maximum or average value of the number of RRC connection users with data transmission within the set period; or, in, or, in, or, in, or, or, in, 7. The method according to claim 1, wherein the determining a user experience rate threshold comprises: or, Or, service-aware rate threshold=∑(service ratio×service target guaranteed rate); or, The service perception rate threshold is used as the user experience rate threshold, and the service ratio is equal to the number of services transmitted by a single cell divided by the total number of services transmitted by a single cell. 8. A capacity expansion evaluation device of a wireless communication system, wherein the device comprises: a first determination unit, a first comparison unit and a second determination unit, wherein, a first determining unit, used for a user experience rate and a user experience rate threshold; a first comparison unit, configured to compare the user experience rate with the user experience rate threshold to obtain a comparison result; a second determining unit, for determining whether to expand the wireless communication system according to the comparison result; wherein, The first determining unit is further configured to determine the user experience rate threshold in the following manner: or, Or, the user experience rate threshold = ∑ (the proportion of the number of users × the service target guaranteed rate); or, User experience rate threshold = ∑ (the proportion of users × service target guaranteed rate × single cell downlink (or uplink) service channel resource utilization threshold); The proportion of the number of users is equal to the number of users in a single cell transmitting the service divided by the total number of users in a single cell. 9 . The capacity expansion evaluation device according to claim 8 , wherein the device further comprises: a third determination unit and a second comparison unit, wherein: 10 . a third determining unit, configured to determine the radio resource utilization rate in the wireless communication system; a second comparing unit, configured to compare the radio resource utilization rate with a set radio resource utilization rate threshold, and trigger the radio resource utilization rate when the radio resource utilization rate is greater than or equal to the set radio resource utilization rate threshold The first determining unit, the first comparing unit, and the second determining unit perform capacity expansion of the wireless communication system, otherwise, do not perform capacity expansion of the wireless communication system. 10. The capacity expansion evaluation device according to claim 8, wherein the comparison result is: the user experience rate is less than/less than or equal to or greater than or equal to/greater than the user experience rate threshold; Correspondingly, the second determining unit is further configured to expand the wireless communication system when the user experience rate is less than or equal to the user experience rate threshold, otherwise, do not expand the wireless communication system . 11. The capacity expansion evaluation device according to claim 8, wherein the comparison result is: the user experience rate determined at a set interval within a set time period is less than or less than or equal to the ratio of the user experience rate threshold Or the number of times exceeds the set threshold or does not exceed the set threshold; Correspondingly, the second determining unit is further configured to perform capacity expansion of the wireless communication system when the ratio or the number of times exceeds a set threshold, otherwise, do not perform capacity expansion of the wireless communication system. 12. The capacity expansion evaluation device according to claim 9, wherein the third determination unit is further configured to: Determine the occupancy rate of the control channel element CCE of the physical downlink control channel PDCCH as the radio resource utilization rate; And/or, determining the physical resource block PRB utilization rate of the physical downlink shared channel PDSCH and/or the physical uplink shared channel PUSCH, as the radio resource utilization rate; Correspondingly, the second comparison unit is also used for: When the occupancy rate of the control channel element CCE of the PDCCH is greater than or equal to a preset threshold, and the PRB utilization rate of the PDSCH or PUSCH is greater than or equal to a preset threshold, it is determined that the radio resource utilization rate is greater than or equal to The set radio resource utilization threshold; Or, when at least one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization rate greater than or equal to the set radio resource utilization threshold; Or, when the largest one of the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH is greater than or equal to a set threshold, determine the radio resource utilization The rate is greater than or equal to the set radio resource utilization threshold; Or, when the occupancy rate of the control channel element CCE of the PDCCH, the PRB utilization rate of the PDSCH, and the PRB utilization rate of the PUSCH are all greater than or equal to a set threshold, it is determined that the radio resource utilization rate is greater than or greater than Equal to the set radio resource utilization threshold. 13. The capacity expansion evaluation device according to claim 9, wherein the first determining unit is further configured to determine the user experience rate in the following manner: in, The number of connected users is the maximum or average value of the number of RRC connection users within the set period, or the maximum or average value of the number of RRC connection users with data transmission within the set period; or, in, or, in, or, in, or, or, in, 14. The capacity expansion evaluation device according to any one of claims 8 to 13, wherein the first determining unit is further configured to determine a user experience rate threshold in the following manner: or, or, Or, service-aware rate threshold=∑(service ratio×service target guaranteed rate); or, Service-aware rate threshold = ∑ (service ratio × service target guaranteed rate × single-cell downlink (or uplink) service channel resource utilization threshold) The service perception rate threshold is used as the user experience rate threshold, and the service ratio is equal to the number of services transmitted by a single cell divided by the total number of services transmitted by a single cell.