CN101990262A - Access control method, device and cell base station of wireless communication network - Google Patents
Access control method, device and cell base station of wireless communication network Download PDFInfo
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Abstract
The invention discloses an access control method of a wireless communication network. The method comprises the following steps: presetting the upper limit and lower limit of the system capacity of a cell base station, wherein the upper limit is lower than the full load value of the system capacity of the cell base station, and the lower limit is higher than the no-load value of the system capacity of the cell base station; acquiring the service access request of the current cell, distributing a corresponding priority for the service access request according to the attribute of the request; acquiring the system load rate of the current cell base station; accessing the service access request in the current cell if the system load rate of the current cell base station is lower than the lower limit of the system capacity; and accessing the service access request in the current cell when the service access request has a high priority and the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity. The method can be used to improve the effective utilization efficiency of the wireless system capacity, improve the communication service quality, and optimize the overall performance of the wireless communication network.
Description
Technical Field
The present invention relates to the field of wireless communication network technologies, and in particular, to an access control method for a wireless communication network, an access control apparatus for a wireless communication network, and a cell base station.
Background
The fundamental purpose of wireless communication is to provide modern communication services to end users at any time, anywhere and with the development of wireless communication technology and the new demand of mobile services for end users, wireless communication continues to evolve towards the direction of mobility, broadband and mobile data services IP. The mobility releases people from geographical limitations, and realizes information transfer in a non-time and non-place manner. The broadband is to meet the requirement of users on service bandwidth of video service, streaming media and the like. The next generation network will mainly carry IP-based data traffic, and IP protocols need to be supported from the core network, the base station, and the user equipment. With the diversification of applications supported by a mobile network, such as multimedia services of voice, data, video, etc., a mechanism capable of providing effective resource management and meeting the purpose of system performance optimization and the OoS requirement of the service needs to be established in a wireless communication network, and an access control mechanism is developed in response to the requirement.
The fundamental problem to be solved by access control is the contradiction between the wireless system capacity and the user demand, because the user demand is larger than the system capacity, a plurality of users inevitably compete for the wireless system capacity in the wireless communication network, and the access control plays a key role in solving the contradiction between the users. The main objective of access control is therefore how to provide a high quality of communication service to the end user using limited radio resources in an efficient manner.
In the prior art, various access control modes of wireless communication networks are proposed, but these modes are basically based on the same premise, that is, the access of multi-user requests is controlled and managed by taking multi-user requests competing for the capacity of a wireless system as a starting point. That is, there is a premise of competition, and then competition management is performed. Therefore, we define all current access control schemes based on capacity contention as the premise of passive control mode. In passive control mode, the radio system capacity is always passively adapted to the user requirements, resulting in a double degradation of the radio system performance: the specific expression is that the user request is frequently accessed and controlled due to the limitation of the wireless system capacity, and the control overhead is increased sharply; secondly, the capacity of the wireless system can be loaded without restriction, which not only causes that the service quality of the newly accessed service is difficult to guarantee, but also causes that the service quality of the service which is accessed into the system is also influenced deeply.
In summary, one of the technical problems that needs to be urgently solved by those skilled in the art is: how to provide a new access control mechanism of wireless communication network to improve the effective utilization efficiency of the wireless system capacity, improve the communication service quality and optimize the overall performance of the wireless communication network.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an access control method and apparatus for a wireless communication network, and a cell base station, so as to improve the effective utilization efficiency of the wireless system capacity, improve the communication service quality, and optimize the overall performance of the wireless communication network.
In order to solve the above technical problem, an embodiment of the present invention discloses an access control method for a wireless communication network, including:
presetting an upper limit and a lower limit of the system capacity of a cell base station, wherein the upper limit is lower than a full load value of the system capacity of the cell base station, and the lower limit is higher than a no-load value of the system capacity of the cell base station;
acquiring a service access request of a current cell, and distributing corresponding priority to the service access request according to the attribute of the request;
acquiring the system load rate of a current cell base station;
if the system load rate of the current cell base station is lower than the lower limit of the system capacity, the service access request is accessed in the current cell; and if the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, accessing the service access request in the current cell when the service access request has high priority.
Preferably, the method further comprises:
and if the system load rate of the current cell base station is higher than the upper limit, switching the service access request.
Preferably, the service access request includes a new call request and a call handover request, a high priority is assigned to the call handover request, and a high priority or a low priority is assigned to the new call request according to a service type.
Preferably, the method further comprises:
and if the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, and the service access request is low priority, switching the service access request.
Preferably, the step of switching the service access request includes:
determining a target cell base station, and horizontally switching the service access request to the target cell base station in the cell, wherein the system load rate of the target cell base station is lower than the lower limit of the system capacity of the target cell base station;
or,
and determining base stations of other access networks in the cell, and vertically switching the service access request to the base stations of the other access networks in the cell, wherein the system load rate of the base stations of the other access networks is lower than the lower limit of the system capacity of the base stations.
Preferably, the step of obtaining the system load rate of the current cell base station includes:
calculating the system load rate of the base station of the current cell according to the number of users of the current cell;
and/or the presence of a gas in the gas,
calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
and/or the presence of a gas in the gas,
and calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
Preferably, the upper limit is 50% -99% of the system capacity full load value of the current cell base station, and the lower limit is 1% -49% of the system capacity full load value of the current cell base station.
The embodiment of the invention also discloses an access control device of the wireless communication network, which comprises:
the system comprises a presetting unit, a control unit and a control unit, wherein the presetting unit is used for presetting the upper limit and the lower limit of the system capacity of a cell base station, the upper limit is lower than the full load value of the system capacity of the cell base station, and the lower limit is higher than the no-load value of the system capacity of the cell base station;
a request processing unit, configured to obtain a service access request of a current cell, and allocate a corresponding priority to the service access request according to an attribute of the request;
a system load rate obtaining unit, configured to obtain a system load rate of a current cell base station;
a first access unit, configured to access the service access request in a current cell when a system load rate of a current cell base station is lower than a lower limit of a system capacity of the current cell base station;
and the second access unit is used for accessing the service access request in the current cell when the system load rate of the base station of the current cell is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request has high priority.
Preferably, the device further comprises:
and the first switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the upper limit.
Preferably, the service access request includes a new call request and a call handover request, a high priority is assigned to the call handover request, and a high priority or a low priority is assigned to the new call request according to a service type.
Preferably, the device further comprises:
and the second switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request is of low priority.
Preferably, the first switching unit or the second switching unit further includes:
a horizontal switching subunit, configured to determine a target cell base station, and horizontally switch the service access request to the target cell base station in the local cell, where a system load rate of the target cell base station is lower than a lower limit of a system capacity of the target cell base station;
or,
and the vertical switching subunit is used for determining base stations of other access networks in the cell, and vertically switching the service access request to the base stations of the other access networks in the cell, wherein the system load rate of the base stations of the other access networks is lower than the lower limit of the system capacity of the base stations.
Preferably, the system load rate obtaining unit further includes:
the user number calculating subunit is used for calculating the system load rate of the current cell base station according to the number of users of the current cell;
and/or the presence of a gas in the gas,
the channel utilization rate calculating subunit is used for calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
and/or the presence of a gas in the gas,
and the flow meter operator unit is used for calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
The embodiment of the invention also discloses a cell base station, which comprises:
the system comprises a presetting module, a control module and a control module, wherein the presetting module is used for presetting an upper limit and a lower limit of system capacity, the upper limit is lower than a full load value of the system capacity, and the lower limit is higher than an idle load value of the system capacity;
the request processing module is used for obtaining a service access request of a current cell and distributing corresponding priority to the service access request according to the attribute of the request;
the system load rate acquisition module is used for acquiring the current system load rate;
a first access module, configured to access the service access request in a current cell when a current system load rate is lower than a lower limit of a system capacity of the current cell;
and the second access module is used for accessing the service access request in the current cell when the current system load rate is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request has high priority.
Preferably, the cell base station further includes:
and the first switching module is used for switching the service access request when the current system load rate is higher than the upper limit.
Preferably, the cell base station further includes:
and the second switching module is used for switching the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request is of low priority.
Compared with the prior art, the invention has the following advantages:
the invention takes the load balance of the wireless communication network as a starting point, but not takes the competition of the system capacity as a starting point, and the system capacity is managed by adopting an active control mode rather than a passive mode controlled by the requirement of a user. In the active control mode, the balance lower limit and the balance upper limit are set for the system capacity, and when the load loaded by the system is lower than the balance lower limit, namely lower than a light load threshold, any flow can be freely accessed, so that the light load or no load of the system is avoided, and the resource utilization efficiency of the system capacity is improved. And when the load loaded by the system exceeds the balance lower limit but is still within the balance upper limit, namely the loaded capacity of the system is still within the overload threshold, accessing the service access request with high priority. When the load reaches the upper limit of the system capacity, the system does not access any service request any more, and the system capacity above the upper limit is reserved as the surplus capacity of the system for the purpose of self regulation of the system. The access control algorithm of the present invention has multiple performance gains:
firstly, the capacity of a wireless system is actively managed and configured, so that the effective utilization efficiency of the capacity of the wireless system is improved;
secondly, by means of wireless network load balancing, not only the problem of competition of multiple users on the capacity of a wireless system is effectively solved, but also the service quality is improved;
and thirdly, the complexity of wireless system control is simplified, and a feasible scheme is provided for optimizing the overall performance of the wireless broadband system.
In the fourth scheme, once the service loading reaches the heavy load threshold of the system, the system does not access any service request, and the system reserves the surplus capacity above the heavy load threshold for the purpose of adjusting and optimizing the system, so that the improvement of the overall service performance is achieved.
In the fifth scheme, when the service loading is still lower than the light load threshold of the system capacity, the system opens the service admission request, thereby being beneficial to improving the resource utilization efficiency of the wireless network.
Drawings
Fig. 1 is a flowchart of an embodiment 1 of an access control method of a wireless communication network according to the present invention;
fig. 2 is a flowchart of an access control method 2 of a wireless communication network according to an embodiment of the present invention;
fig. 3 is a flowchart of a specific example of the wireless communication network access control method of the present invention;
fig. 4 is a block diagram of an embodiment of an access control apparatus of a wireless communication network according to the present invention;
fig. 5 is a block diagram of an embodiment of a cell site of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
At present, the main field of wireless communication network application in China is undergoing accelerated evolution from 2G (second generation mobile communication) technology to 3G (third generation mobile communication) technology, and particularly rapid evolution from GSM (2G) network to TD-SCDMA (3G) network. It is known that the three prevailing standards for third generation mobile communication systems are based on CDMA technology, and that CDMA networks apply the concept of "soft capacity", i.e. the number of users accommodated by each cell in a CDMA network depends on the total interference received by the base station of that cell, as opposed to the number of users accommodated by the cell in a TDMA network being fixed. Specifically, in a CDMA system, each additional new or handed-off user sees an increased interference level at all other mobile stations, and accordingly, each mobile station should increase its transmit power appropriately to ensure link integrity, which in turn increases the interference level that the next mobile station must overcome. This process repeats itself until a mobile station eventually does not have sufficient power to overcome the interference level to achieve a satisfactory quality of communication service at the base station, at which point the communication link is forced to be broken, i.e., the system reaches its capacity limit. An excessive air interface load will cause the coverage area of the cell to drop below the planned value, and the quality of the existing connection service is not guaranteed, which may also lead to system instability and further cause call drop in case of severe conditions.
Therefore, in the resource management of the next generation wireless communication network system, access control is indispensable, and it is important to avoid overload of traffic load and ensure the stability of the system.
In view of the above, the present invention creatively proposes a core concept that the system capacity is managed in an active control mode rather than in a passive mode, which is constrained by user requirements, starting from load balancing of the wireless communication network rather than from competition of the system capacity. In the active control mode, the balance lower limit and the balance upper limit are set for the system capacity, when the load loaded by the system is lower than the balance lower limit, the system can access any service request, and the utilization efficiency of the system capacity is ensured to reach a certain level, so that the inefficient utilization of system resources is avoided. . When the load loaded by the system exceeds the balance lower limit but is still within the balance upper limit, accessing a service access request with high priority; when the load loaded by the system exceeds the upper limit of the system capacity, no service request is accessed any more, and the system capacity above the upper limit is reserved as the surplus capacity of the system for the self regulation of the system. The access control algorithm of the present invention has multiple performance gains: firstly, the capacity of a wireless system is actively managed and configured, so that the effective utilization efficiency of the capacity of the wireless system is improved; secondly, by means of wireless network load balancing, not only the problem of competition of multiple users on the capacity of a wireless system is effectively solved, but also the service quality is improved; and thirdly, the complexity of wireless system control is simplified, and a feasible scheme is provided for optimizing the overall performance of the wireless broadband system. (this feature has already been explained in the preceding section)
Referring to fig. 1, a flow chart of an embodiment 1 of an access control method of a wireless communication network of the present invention is shown, which may include the following steps:
102, obtaining a service access request of a current cell, and distributing corresponding priority to the service access request according to the attribute of the request;
103, acquiring the system load rate of the current cell base station;
and 105, if the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, accessing the service access request in the current cell only when the service access request has high priority.
For the measurement of the system capacity, any method in the prior art may be adopted, for example, FDMA, TDMA, CDMA system capacity is measured within the spectrum bandwidth (1.25MHz) of a given narrowband code division system, and the results are as follows:
an analog TACS system (analog mobile communication system) adopts FDMA mode:
setting: total bandwidth B allocated to the systemt1.25MHz, channel bandwidth BcThe number of frequency reuse cells N is 7 at 25 kHz;
the system capacity is calculated by the method of the number of available channels per cell as follows:
the digital GSM system adopts a TDMA mode:
setting: total bandwidth B allocated to the systemt1.25MHz, carrier frequency interval Bc200kHz, 8 time slots per carrier frequency and 4 cells for frequency reuse;
computing system capacity <math><mrow><mi>m</mi><mo>=</mo><mfrac><mrow><mn>1.25</mn><mo>×</mo><msup><mn>10</mn><mn>3</mn></msup><mo>×</mo><mn>8</mn></mrow><mrow><mn>200</mn><mo>×</mo><mn>4</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><mn>10</mn><mo>×</mo><msup><mn>10</mn><mn>3</mn></msup></mrow><mn>800</mn></mfrac><mo>≈</mo><mn>12.5</mn></mrow></math>
Three, digital CDMA system
Setting: total bandwidth B allocated to the systemt1.25MHz, speech coding rate Rb9.6kbit/s, voice duty ratio d 0.35, sector partition coefficient G2.55, channel multiplexing efficiency F0.6, normalized signal-to-noise ratio Eb/N0＝7dB；
Computing system capacity <math><mrow><mi>m</mi><mo>=</mo><mo>{</mo><mn>1</mn><mo>+</mo><mo>[</mo><mrow><mo>(</mo><mfrac><mrow><mn>1.25</mn><mo>×</mo><msup><mn>10</mn><mn>3</mn></msup></mrow><mn>9.6</mn></mfrac><mo>)</mo></mrow><mo>/</mo><mrow><mo>(</mo><msup><mn>10</mn><mn>0.7</mn></msup><mo>)</mo></mrow><mo>]</mo><mo>·</mo><mfrac><mn>1</mn><mn>0.35</mn></mfrac><mo>}</mo><mo>·</mo><mn>2.55</mn><mo>×</mo><mn>0.6</mn><mo>=</mo><mn>115</mn></mrow></math>
Of course, the above method is only used as an example, and in practice, the number of irish per cell, the number of users per square kilometer, the number of calls per hour per square kilometer, and the like may be used for measurement. And these measurement methods are mutually convertible. The invention need not be limited in this regard.
When the system capacity is calculated, the full load value can be obtained accordingly, in this case, the upper limit and the lower limit can be set according to the actual requirement, for example, the upper limit is set to 50% -99% of the full load value of the system capacity, and the lower limit is set to 1% -49% of the full load value of the system capacity. Assuming that δ is the system load rate of the cell base station, δ ≦ 0 ≦ 1, where δ ≦ 1 indicates that the cell is full and δ ≦ 0 indicates that the cell is empty. It can be understood that if the cell is overloaded or fully loaded, the new service access request will encounter frequent access control and blocking, and the communication service quality of the accessed request will also be affected, and the optimization of the cell communication performance is a very serious inhibiting factor. However, if the cell is lightly loaded, the utilization efficiency of the system capacity is not high, and the communication value of the application cannot be exerted. Therefore, for each cell base station, reasonable flow is a necessary way for improving the overall performance of the network, and the flow is balanced among different access technologies in the cell base station and among adjacent cell base stations, so that the method has great potential for optimizing the overall network performance.
In a specific implementation, the method for obtaining the system load rate may adopt the following methods, for example:
1) calculating the system load rate of the current cell base station according to the number of users in the cell covered by the current cell base station;
2) calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
3) and calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
Of course, the above algorithms can also be used in combination, and any combination and selection by those skilled in the art are feasible according to the actual situation, and the present invention is not limited to this.
In this embodiment, the system load rate at the current cell base station is below the lower limit of its system capacity (δ < δ)low) And if so, the service access request can be accessed in the current cell, thereby avoiding light load or no load of the system and improving the resource utilization efficiency of the system capacity. The system load rate at the current cell base station is above its lower limit of system capacity but still within the upper limit (δ)low≤δ＜δup) When the service access request with high priority is accessed to the current cell, the base station can queue the request according to the service type in the current cell. When the system capacity is higher than the upper limit of the system capacity, the corresponding request can be refused to be accessed, and the system capacity above the upper limit is reserved as the surplus capacity of the system for the self regulation of the system so as to ensure the communication service quality of the connected request user.
Referring to fig. 2, a flow chart of embodiment 2 of the access control method of the wireless communication network of the present invention is shown, which may include the following steps:
in practice, new service access requests, regardless of the reason, are classified into two categories according to the characteristics of presence or absence: a call handover request and a new call request. Since the on-line service in the wireless communication network generally has a higher priority than the new service, the call handover request is assigned with a high priority, and the new call request may be assigned with a high priority or a low priority according to its service characteristics, for example, a high priority is assigned for the real-time voice service and a low priority is assigned for the non-real-time data service.
and step 207, if the system load rate of the current cell base station is higher than the upper limit, switching the service access request.
In practice, the handover performed when the system load rate is higher than the lower limit and lower than the upper limit, or the handover performed when the system load rate is higher than the upper limit, may be horizontal handover, or may be vertical handover, specifically, horizontal handover refers to horizontally handover the service access request to a target cell base station by determining a target cell base station with light load (for example, the system load rate of the target cell base station is lower than the lower limit of its system capacity); the vertical handover refers to vertically handover the service access request to a cell base station in another access network in the cell by determining a lightly loaded base station in the other access network in the cell (for example, the system load rate of a base station in another access network in the cell is lower than the lower limit of the system capacity), for example, handover the service access request in the 2G network to a certain lightly loaded cell base station in a 3G network in the cell.
In this embodiment, that is, for a service access request with low priority, unless the system capacity of the local base station is lower than the light load threshold shown in the lower limit, the service access request is forced to be vertically switched to a bearer network with a smaller load in the local cell or horizontally switched to a neighboring cell with a light load; for the service access request with high priority, if the upper limit of the local system capacity is exceeded, vertical or horizontal switching is also forced, thereby being beneficial to load balancing and system performance optimization in the wireless network.
In order that those skilled in the art will better understand the present invention, embodiments of the present invention are described below by way of a specific example.
Assuming that δ is the system load rate of the cell base station, δ ≦ 0 ≦ 1, where δ ≦ 1 indicates that the cell is full and δ ≦ 0 indicates that the cell is empty. The upper limit and the lower limit of the system capacity are preset to be 0.8 and 0.2, and referring to fig. 3, the process of access control includes:
301, obtaining a service access request of a current cell;
Specifically, the service access request may be horizontally switched to a target cell base station with a light load, or the service access request may be vertically switched to a cell base station in another access network with a smaller load.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
Referring to fig. 4, a block diagram of an embodiment of an access control apparatus of a wireless communication network of the present invention is shown, which may include:
a presetting unit 401, configured to preset an upper limit and a lower limit of a system capacity of a cell base station, where the upper limit is lower than a full load value of the system capacity of the cell base station, and the lower limit is higher than an idle load value of the system capacity of the cell base station;
a request processing unit 402, configured to obtain a service access request of a current cell, and allocate a corresponding priority to the service access request according to an attribute of the request;
a system load rate obtaining unit 403, configured to obtain a system load rate of a current cell base station;
a first accessing unit 404, configured to access the service access request in the current cell when the system load rate of the current cell base station is lower than the lower limit of the system capacity of the current cell base station;
a second accessing unit 405, configured to access the service access request in the current cell when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, and the service access request has a high priority.
In another preferred apparatus embodiment of the present invention, the access control apparatus of the wireless communication network may further include:
and the first switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the upper limit.
In practice, the service access request may include a new call request and a call handover request, and the call handover request may be assigned with a high priority, or the new call request may be assigned with a high priority or a low priority according to a service type.
In another preferred apparatus embodiment of the present invention, the access control apparatus of the wireless communication network may further include:
and the second switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request is of low priority.
The first switching unit or the second switching unit may further include the following sub-units:
a horizontal switching subunit, configured to determine a target cell base station, and horizontally switch the service access request to the target cell base station, where a system load rate of the target cell base station is lower than a lower limit of a system capacity of the target cell base station;
or,
and the vertical switching subunit is used for determining base stations of other access networks in the cell, and vertically switching the service access request to the base stations of the other access networks in the cell, wherein the system load rate of the base stations of the other access networks is lower than the lower limit of the system capacity of the base stations.
In a specific implementation, the system load rate obtaining unit may further include the following sub-units:
the user number calculating subunit is used for calculating the system load rate of the current cell base station according to the number of users of the current cell;
and/or the presence of a gas in the gas,
the channel utilization rate calculating subunit is used for calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
and/or the presence of a gas in the gas,
and the flow meter operator unit is used for calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the device embodiment.
Referring to fig. 5, a block diagram of a cell base station of the present invention is shown, which further includes the following modules compared with the prior art:
a presetting module 501, configured to preset an upper limit and a lower limit of a system capacity, where the upper limit is lower than a full load value of the system capacity, and the lower limit is higher than an idle value of the system capacity;
a request processing module 502, configured to obtain a service access request of a current cell, and allocate a corresponding priority to the service access request according to an attribute of the request;
a system load rate obtaining module 503, configured to obtain a current system load rate;
a first access module 504, configured to access the service access request in a current cell when a current system load rate is lower than a lower limit of a system capacity of the current cell;
a second accessing module 505, configured to access the service access request in the current cell when the current system load rate is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, and the service access request has a high priority.
In a preferred embodiment of the present invention, the cell base station may further include the following modules:
a first switching module 506, configured to switch the service access request when the current system load rate is higher than the upper limit.
And/or the presence of a gas in the gas,
the second switching module 507 is configured to switch the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, and the service access request is of a low priority.
For the present embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the partial description of the device embodiment.
The foregoing detailed description is directed to an access control method of a wireless communication network, an access control apparatus of a wireless communication network, and a cell base station provided by the present invention, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the above descriptions of the embodiments are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (16)
1. An access control method for a wireless communication network, comprising:
presetting an upper limit and a lower limit of the system capacity of a cell base station, wherein the upper limit is lower than a full load value of the system capacity of the cell base station, and the lower limit is higher than a no-load value of the system capacity of the cell base station;
acquiring a service access request of a current cell, and distributing corresponding priority to the service access request according to the attribute of the request;
acquiring the system load rate of a current cell base station;
if the system load rate of the current cell base station is lower than the lower limit of the system capacity, the service access request is accessed in the current cell; and if the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, accessing the service access request in the current cell when the service access request has high priority.
2. The method of claim 1, further comprising:
and if the system load rate of the current cell base station is higher than the upper limit, switching the service access request.
3. The method of claim 1, wherein the service access request comprises a new call request and a call handover request, the call handover request is assigned a high priority, and the new call request is assigned a high priority or a low priority depending on a service type.
4. The method of claim 3, further comprising:
and if the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity, and the service access request is low priority, switching the service access request.
5. The method of claim 2 or 4, wherein the step of switching service access requests comprises:
determining a target cell base station, and horizontally switching the service access request to the target cell base station in the cell, wherein the system load rate of the target cell base station is lower than the lower limit of the system capacity of the target cell base station;
or,
and determining base stations of other access networks in the cell, and vertically switching the service access request to the base stations of the other access networks in the cell, wherein the system load rate of the base stations of the other access networks is lower than the lower limit of the system capacity of the base stations.
6. The method of claim 1, wherein the step of obtaining the load rate of the current cell base station system comprises:
calculating the system load rate of the base station of the current cell according to the number of users of the current cell;
and/or the presence of a gas in the gas,
calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
and/or the presence of a gas in the gas,
and calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
7. The method of claim 1, wherein the upper limit is 50% -99% of the full capacity value of the system capacity of the current cell base station, and the lower limit is 1% -49% of the full capacity value of the system capacity of the current cell base station.
8. An access control apparatus of a wireless communication network, comprising:
the system comprises a presetting unit, a control unit and a control unit, wherein the presetting unit is used for presetting the upper limit and the lower limit of the system capacity of a cell base station, the upper limit is lower than the full load value of the system capacity of the cell base station, and the lower limit is higher than the no-load value of the system capacity of the cell base station;
a request processing unit, configured to obtain a service access request of a current cell, and allocate a corresponding priority to the service access request according to an attribute of the request;
a system load rate obtaining unit, configured to obtain a system load rate of a current cell base station;
a first access unit, configured to access the service access request in a current cell when a system load rate of a current cell base station is lower than a lower limit of a system capacity of the current cell base station;
and the second access unit is used for accessing the service access request in the current cell when the system load rate of the base station of the current cell is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request has high priority.
9. The apparatus of claim 8, further comprising:
and the first switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the upper limit.
10. The apparatus of claim 8, wherein the service access request comprises a new call request and a call handover request, the call handover request is assigned a high priority, and the new call request is assigned a high priority or a low priority depending on a service type.
11. The apparatus of claim 10, further comprising:
and the second switching unit is used for switching the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request is of low priority.
12. The apparatus of claim 9 or 11, wherein the first switching unit or the second switching unit further comprises:
a horizontal switching subunit, configured to determine a target cell base station, and horizontally switch the service access request to the target cell base station in the local cell, where a system load rate of the target cell base station is lower than a lower limit of a system capacity of the target cell base station;
or,
and the vertical switching subunit is used for determining base stations of other access networks in the cell, and vertically switching the service access request to the base stations of the other access networks in the cell, wherein the system load rate of the base stations of the other access networks is lower than the lower limit of the system capacity of the base stations.
13. The apparatus of claim 8, wherein the system load rate obtaining unit further comprises:
the user number calculating subunit is used for calculating the system load rate of the current cell base station according to the number of users of the current cell;
and/or the presence of a gas in the gas,
the channel utilization rate calculating subunit is used for calculating the system load rate of the current cell base station according to the channel utilization rate of the current cell;
and/or the presence of a gas in the gas,
and the flow meter operator unit is used for calculating the system load rate of the current cell base station according to the routing flow of the current cell base station.
14. A cell base station, comprising:
the system comprises a presetting module, a control module and a control module, wherein the presetting module is used for presetting an upper limit and a lower limit of system capacity, the upper limit is lower than a full load value of the system capacity, and the lower limit is higher than an idle load value of the system capacity;
the request processing module is used for obtaining a service access request of a current cell and distributing corresponding priority to the service access request according to the attribute of the request;
the system load rate acquisition module is used for acquiring the current system load rate;
a first access module, configured to access the service access request in a current cell when a current system load rate is lower than a lower limit of a system capacity of the current cell;
and the second access module is used for accessing the service access request in the current cell when the current system load rate is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request has high priority.
15. The cell site of claim 14, further comprising:
and the first switching module is used for switching the service access request when the current system load rate is higher than the upper limit.
16. The cell site of claim 14 or 15, further comprising:
and the second switching module is used for switching the service access request when the system load rate of the current cell base station is higher than the lower limit of the system capacity and lower than the upper limit of the system capacity and the service access request is of low priority.
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| CN2009100902387A CN101990262A (en) | 2009-08-05 | 2009-08-05 | Access control method, device and cell base station of wireless communication network |
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| CN2009100902387A CN101990262A (en) | 2009-08-05 | 2009-08-05 | Access control method, device and cell base station of wireless communication network |
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