WO2012174824A1

WO2012174824A1 - Synchronization method, access method and devices for load information of same coverage cells

Info

Publication number: WO2012174824A1
Application number: PCT/CN2011/082589
Authority: WO
Inventors: 赵毅敏
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-06-22
Filing date: 2011-11-22
Publication date: 2012-12-27
Also published as: CN102843722B; CN102843722A

Abstract

Disclosed are a synchronization method, an access method and devices for load information of same coverage cells. The method comprises: calculating, according to acquired radio resource loads, base station interference parameters and base station transmit power parameters, an integrated load value of each cell in the same coverage cells; synchronizing the calculated integrated load values to other radio network controllers that manage the same coverage cells; and when a UE requests to access a cell, according to the integrated load value of each cell in the same coverage cells and a set policy, enabling the UE to selectively access the requested cell and other cells in the same coverage cells. Since the calculated integrated load value is obtained by comprehensively considering the radio resource conditions comprising the radio resource loads, the base station transmit power and the base station interference, the radio resource load conditions of the same coverage cells are quantized based on unified standards, and UEs requesting to access the cells are enabled to selectively access among the different same coverage cells, thereby effectively achieving balance of the radio resource loads among the same coverage cells.

Description

Synchronization method, access method and device for covering cell load information

The present invention relates to the field of wireless communications, and in particular, to a synchronization method, an access method, and a device for overlaying cell load information. Background technique

With the development of mobile communication technologies, the number of mobile users has increased, which poses a challenge to the service level of mobile communication systems. On the one hand, the increase in the number of users requires a commensurate system capacity to meet the business needs; on the other hand, the demand for the types of services presents a diversified trend, especially as users use data services more and more, and The requirements for the speed and performance of the system are also increasing. In order to meet the needs of users, operators continue to expand their capacity in the GSM network to meet the increasing number of users, and on the other hand increase the investment of third-generation mobile communication technologies (such as WCDMA) to meet the needs of users for data services. In this context, the environment of wireless networks is becoming more and more complex, and the same area may be covered by multiple wireless networks, that is, existing coverage areas, especially in urban areas and hotspot areas. However, for various reasons, the wireless coverage of the same coverage area (referred to as the coverage area) in the same area is often unbalanced, resulting in waste of network resources and a decline in user experience. Summary of the invention

The embodiment of the invention provides a synchronization method and an access method for the same coverage cell load information, so as to solve the problem that the radio resources in the existing coverage cell are not balanced.

Correspondingly, the embodiment of the present invention further provides a synchronization device and an access device that cover the cell load information.

A method for synchronizing load information of a covered cell according to an embodiment of the present invention includes: The radio network controller acquires radio resource load, base station interference parameter, and base station transmit power parameter of each cell under the jurisdiction of the coverage cell, and calculates its own according to the acquired radio resource load, base station interference parameter, and base station transmit power parameter. The comprehensive load value of each cell under the jurisdiction is stored;

When the radio network controller determines that there is a cell under the jurisdiction of another radio network controller in the same coverage cell, it synchronizes the calculated integrated load value of each cell under its jurisdiction to other radio network controllers, and receives and stores other cells. The integrated load value of the wireless network controller synchronization.

An access method for the same coverage d and area provided by the embodiment of the present invention includes:

Receiving, by the radio network controller, a request sent by the first user equipment UE to access the first cell in the coverage cell;

The radio network controller selects to access the first UE or the other second cell in the same coverage cell according to the integrated load value of each cell in the same coverage cell;

The integrated load value of each cell in the same coverage cell is obtained by:

The radio network controller acquires radio resource load, base station interference parameter, and base station transmit power parameter of each cell under the jurisdiction of the coverage cell, and calculates its own according to the acquired radio resource load, base station interference parameter, and base station transmit power parameter. The comprehensive load value of each cell under the jurisdiction is stored;

The embodiment of the present invention further provides a synchronization device that covers the cell load information, and includes: a calculation unit, configured to acquire radio resource load, base station interference parameter, and base station of each cell managed by the radio network controller in the coverage cell Transmitting power parameters, and calculating comprehensive load values of each cell according to the obtained radio resource load, base station interference parameters, and base station transmit power parameters, and storing; a synchronization unit, configured to: when it is determined that there is a cell under the jurisdiction of another radio network controller in the same coverage cell, synchronize the integrated load value of each cell calculated by the calculation unit to another radio network controller, and receive and store other cells. The integrated load value of the wireless network controller synchronization.

An embodiment of the present invention further provides an access device for a coverage cell, including:

a receiving unit, configured to receive a request that the first UE sends an access to the first cell in the coverage cell;

An access unit, configured to select to access the first UE or another second cell in the same coverage cell according to the integrated load value of each cell in the same coverage cell;

The access device of the coverage cell acquires the radio resource load, the base station interference parameter, and the base station transmit power parameter of each cell in the same coverage cell, and according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter, Calculate the comprehensive load value of each cell under its jurisdiction and store it;

When it is determined that there is a cell under the jurisdiction of another radio network controller in the same coverage cell, the calculated integrated load value of each cell under its jurisdiction is synchronized to other radio network controllers, and other radio network controllers are received and stored. Synchronized integrated load value.

Advantageous effects of embodiments of the present invention include:

The method for synchronizing the same coverage cell load information, the access method and the device provided by the embodiment of the present invention, and calculating the comprehensive load of each cell in the same coverage cell according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter The value, and the calculated integrated load value is synchronized to other radio network controllers that are in the same coverage area. When there is a UE requesting access, the UE is based on the integrated load value of each cell in the coverage cell and the set policy. The access is selected to the cell requesting access and other cells in the same coverage cell. Since the calculated integrated load value is obtained by comprehensively considering radio resource load, base station transmit power, base station interference and other radio resources, a unified standard quantization is implemented for the radio resource load of the same coverage cell, so that the parameter can be utilized. According to the different load conditions of the coverage cell, the UEs that are to be accessed are selected and accessed between different coverage cells, and the balance of the radio resource load is effectively realized between the coverage cells. DRAWINGS

FIG. 1 is a schematic flowchart of a method for synchronizing load information of a covered cell according to an embodiment of the present invention;

2 is a schematic flowchart of a method for accessing a same coverage cell according to an embodiment of the present invention; FIG. 3 is a schematic flowchart of a first UE selecting access according to an embodiment of the present invention; FIG. 5 is a schematic flowchart of a first embodiment of the present invention; FIG.

FIG. 6 is a schematic flowchart diagram of Embodiment 2 according to an embodiment of the present disclosure;

FIG. 7 is a schematic flowchart diagram of Embodiment 3 according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a synchronization device for overlaying cell load information according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a computing unit according to an embodiment of the present disclosure;

10 is a schematic structural diagram of an access device of a same coverage cell according to an embodiment of the present invention; FIG. 11 is a schematic structural diagram of an access unit according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of selecting an access unit according to an embodiment of the present invention. detailed description

The specific implementation manners of the synchronization method, the access method and the device for covering the cell load information provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The method for synchronizing the same coverage cell load information provided by the embodiment of the present invention is as shown in FIG. 1 , and the specific process includes:

S101. The radio network controller acquires radio resource load, base station interference parameter, and base station transmit power parameter of each cell in the same coverage cell, and according to the obtained radio resource. The load, the base station interference parameter, and the base station transmit power parameter calculate and store the integrated load value of each cell under its jurisdiction;

S102, the radio network controller determines whether there is a cell under the jurisdiction of the other radio network controller in the same coverage cell; if yes, execute S103; otherwise, execute S104;

S103. The radio network controller synchronizes the calculated integrated load value of each cell under its jurisdiction to other radio network controllers, and receives and stores the integrated load value synchronized by the other radio network controllers.

S104. Exit the process.

In S101, the purpose of calculating and storing the integrated load value of each cell under its jurisdiction is to: perform unified standard quantization on the radio resource condition of the cell controlled by each radio network controller, so that the user equipment (UE) can access the same coverage. When any cell in the cell is used, it is convenient to use the unified value, that is, the integrated load value, to determine whether the UE switches to access other cells in the same coverage cell or directly access the local cell.

In addition, after the foregoing S101-S104 is completed, if the radio network controller acquires one or more parameters of the radio resource load, the base station interference parameter, or the base station transmit power parameter of the managed cell, the following steps are performed:

According to the radio network controller acquiring the updated radio resource load, the base station interference parameter or the base station transmit power parameter of the cell in the coverage cell, recalculating the integrated load value of the cell, and using the recalculated integrated load value update The combined load value of the stored cell;

The radio network controller synchronizes the recalculated integrated load values to other wireless network controllers.

Specifically, the process of obtaining the relevant parameters in the foregoing S101, and calculating the comprehensive load value of each cell, specifically includes the following steps:

According to the radio resources occupied by the accessed UE of the cell and the sum of the radio resources configured for the cell, Calculating and storing a radio resource occupancy ratio of the cell;

Transmitting, to the base station, a common measurement control command, where the common measurement control command specifies a base station interference value of the measurement cell and a base station transmission power;

Receiving a common measurement report sent by the base station with the base station interference value of the cell and the base station transmit power, calculating a ratio of the base station interference value to the base station normal working maximum interference value, obtaining a base station interference ratio, and calculating a ratio of the base station transmit power to the base station maximum transmit power Obtaining a base station transmit power ratio, and storing the calculated base station interference ratio and base station transmit power ratio;

Calculating and storing the comprehensive load value of the cell according to the calculated radio resource occupancy ratio, base station interference ratio, base station transmit power ratio, preset radio resource occupancy ratio, base station interference ratio, and base station transmit power ratio weight value. .

When calculating the comprehensive load value of each cell, the weight values of the radio resource occupation ratio, the base station interference ratio, and the base station transmit power ratio of different cells in the same coverage cell may be different according to the network planning and network optimization results of the cell. Settings.

Preferably, the above calculated integrated load value can be expressed in percentage form.

Through the foregoing process, the base station transmitting radio power, the base station interference, and the radio resource occupation ratio can be integrated to obtain a value that can reflect the use of the radio resource in the same coverage cell, that is, the integrated load value, so that it is convenient to be between different coverage cells. Selecting to access the UE to be accessed or handover to the online UE effectively balances the use of radio resources in the same coverage cell.

After the above S101~S104 is experienced, if the radio network controller receives a request initiated by a certain UE to access a certain cell in the coverage cell (hereinafter referred to as a first cell for convenience of discussion), then The access method of the following coverage cell is provided by the embodiment of the present invention. For convenience of description, the UE that initiates the access request is referred to as a first UE, and the cell that the first UE requests to access is referred to as a first. A cell, other than the first cell in the same coverage cell, is referred to as a second cell.

Specifically, as shown in FIG. 2, the following coverage of the same coverage cell provided by the embodiment of the present invention is provided. The method may include the following steps:

5201. The radio network controller receives, by the first UE, a request that the first UE sends an access to the first cell in the coverage cell.

5202, the radio network controller in accordance with the comprehensive coverage cell stored load value of each cell, selecting a first cell to _the first _UE or the access cover with a second cell in the other cells.

The integrated load value of each cell of the same coverage cell that is stored by the radio network controller is obtained by using the synchronization method of the coverage cell load information provided in the embodiment of the present invention.

Specifically, in the foregoing S202, the first UE is selected to access the first cell or the other second cell in the same coverage cell, as shown in FIG. 3, by using the following process:

5301, determining whether the comprehensive load value of the first cell reaches a preset resource pre-alarm threshold of the first cell, and if yes, executing S302, if not, executing S303;

S302: The first UE is connected to the first cell or the other second cell in the same coverage cell according to the preset policy.

S303. Access the first UE to the first cell.

Specifically, there are two preset policies in S302. The first type of policy is as shown in FIG. 4, and includes the following steps:

S401. Determine whether the integrated load value of each second cell in the same coverage cell reaches the resource early warning threshold of the corresponding d and the area. If the integrated load value of the at least one second cell is smaller than the corresponding resource early warning threshold, perform S402; Exist, execute S407 or S410;

S402, sorting, according to the size of the comprehensive load value, for each second cell in the same coverage cell whose integrated load value is smaller than the resource early warning threshold, and then executing S403 or S404;

S403. Connect the first UE to the second cell with the lowest integrated load value.

5404, determining whether the online UE in the first cell can be switched to another second small area, if yes, executing S405, if not, executing S406;

5405. Switch the online UE to the second cell with the lowest integrated load value, and connect the first UE. Accessing the first cell;

S406: The first UE is connected to the second cell with the lowest integrated load value or accesses the first cell.

5407, determining whether there is an online UE that can be decelerated in the first cell, if yes, executing S408, if not, executing S409;

After the downlink UE is decelerated, the first UE is accessed to the first cell.

S409: The first UE is connected to the first cell or the first UE is decelerated and then accesses the first cell.

5410, determining whether the first UE can slow down to access the first cell, if so, executing S411, if not, executing S412;

5411. After the first UE is decelerated, accessing the first cell;

5412. Access the first UE to the first cell.

The determining whether the online UE or the first UE can access the cell at a reduced speed may be determined according to factors such as the multi-band capability, the multi-standard capability, the service type, the service priority, and the rate of the online UE or the first UE.

Specifically, the second policy of the preset policy in S302 is similar to the first policy, and includes the following processes:

Determining whether the sum of the integrated load value of the second cell in the same coverage cell and the resource early warning offset reaches the corresponding resource early warning threshold;

If the sum of the integrated load value of the at least one second cell and the resource early warning offset is less than the corresponding resource early warning threshold, the sum of the combined load value and the resource early warning offset is less than the resource early warning threshold. The second cell is sorted according to the sum of the integrated load value and the resource early warning offset, and the first UE is connected to the second cell with the lowest sum of the integrated load value and the resource early warning offset; or

Determining whether the online UE in the first cell can be switched to access the other second cell, and if yes, switching the online UE to the second cell with the lowest sum of the integrated load value and the resource early warning offset, and the first UE Accessing the first cell; if not, accessing the first UE to the integrated load value and resource alert a second cell having the lowest sum of offsets or accessing the first cell;

If the sum of the integrated load value of the other second cell and the resource early warning offset reaches the corresponding resource early warning threshold, it is determined whether there is an online UE that can be decelerated in the first cell, and if yes, the online UE that can be decelerated After the speed is reduced, the first UE is connected to the first cell, and if not, the first UE is connected to the first cell or the first UE is decelerated and then accesses the first cell; or

Determining whether the first UE can be decelerated to access the first cell, and if so, the first UE is decelerated and then connected to the first cell, and if not, the first UE is connected to the first cell.

The setting of the resource early warning offset can avoid the ping-pong handover problem between the same coverage cells, and set the resource early warning offset of each cell in the coverage cell according to the wireless network planning and the result of the wireless network optimization, in the same coverage area. The resource early warning offsets set by different cells may be different, so that the radio resource allocation has certain flexibility while sufficiently equalizing the radio resource load of the cells in the coverage cell.

The method for selecting and accessing the same coverage cell provided by the embodiment of the present invention is described in the following three specific examples.

Example 1:

The flow of the first example is as shown in FIG. 5. The present example is an access method of the same coverage cell under the condition that the UE that requests the access cannot reduce the rate, and the specific process includes the following steps:

S501: The UE initiates a radio resource control (RRC) connection request or a core network to send a radio access bearer (RAB) assignment message, requesting access to the current cell;

S502: The radio resource management device determines whether the current cell integrated load value has reached or exceeded a preset resource early warning threshold. If the result is yes, execute S503, if the result is no, execute S508; S503: The radio resource management apparatus determines whether the sum of the integrated load value of the other cells in the same coverage cell and the resource early warning offset is greater than the resource early warning threshold; if the result is yes, execute S504, if the result is no, execute S506;

S504: judging whether there is an online UE that can reduce the rate according to the online UE service type, the service priority, and the rate in the current cell; if there is an online UE that can be decelerated, executing S505, if not, executing S508;

S505: After the rate reduction of the online UE is reduced by the wireless 7|load reconfiguration process in the prior art, executing S508;

S506: After sorting other cells in the same coverage cell whose sum of the integrated load value and the resource early warning offset is less than the resource early warning threshold, executing S507;

S507: The UE accesses the other cell with the smallest sum of the integrated load value and the resource early warning offset in the coverage cell, and exits the process;

S508: Access the UE to the current cell.

Example 2:

The process of the second embodiment is as shown in FIG. 6. In this example, when the UE that requests the access cannot reduce the rate, and the level of the UE that requests the access is higher, the access method of the same coverage cell includes the following steps:

S601: The UE initiates an RRC connection request or sends a RAB assignment message to the core network.

S602: The radio resource management device determines whether the current cell comprehensive load value has reached or exceeds a preset resource early warning threshold. If the result is yes, execute S603, if the result is no, execute S609;

S603: The radio resource management apparatus determines whether the sum of the integrated load value and the resource early warning offset of the other cells in the same coverage cell is greater than the resource early warning threshold; if the result is yes, execute S604, if the result is no, execute S606;

S604: According to factors such as an online UE service type, a service priority, and a rate in the current cell. Determining whether there is an online UE that can reduce the rate; if there is an online UE that can slow down, execute S605, if not, execute S609;

S605: After the rate reduction UE is degraded by the radio bearer reconfiguration process in the prior art, executing S609;

S606: After sorting other cells in the same coverage cell whose sum of the integrated load value and the resource early warning offset is less than the resource early warning threshold, executing S607;

S607: Determine, according to factors such as whether the online UE of the current cell supports multiple standards, whether the multi-band is supported, the service type, the service priority, and the rate, determine whether there is an online connection to another cell that can access the same coverage cell. UE; if yes, execute S608, if not, execute S609;

S608, after the online UE that can be switched in the current cell accesses another cell with the smallest sum of the integrated load value and the resource early warning offset in the coverage cell, perform S609;

S609: Access the UE to the current cell.

Example three:

The process of the third embodiment is as shown in FIG. 7. The present example is an access method of the same coverage cell when the UEs in the cell that the UE requests to access are not considered. The specific process includes the following steps: S701: The UE initiates an RRC connection. Sending a RAB assignment message to the request or the core network;

S702: The RRC device determines whether the current cell comprehensive load value has reached or exceeded a preset resource early warning threshold. If the result is yes, execute S703. If the result is no, execute S708.

S703: The radio resource management apparatus determines whether the sum of the integrated load value and the resource early warning offset of the other cells in the same coverage cell is greater than the resource early warning threshold; if the result is yes, execute S704, if the result is no, execute S706;

S704, determining, according to the service type, service priority, and rate of the requesting access to the UE, whether the rate can be decreased; if yes, executing S705, if not, executing S708; S705: After the UE is degraded by the radio bearer reconfiguration process in the prior art, executing S708;

S706: After sorting other cells in the same coverage cell whose sum of the integrated load value and the resource early warning offset is less than the resource early warning threshold, executing S707;

S707: The UE accesses another cell in which the sum of the integrated load value and the resource early warning offset in the coverage cell is the smallest;

S708: Access the UE to the current cell.

The embodiment of the invention further provides a synchronization device for covering the cell load information, as shown in FIG. 8, which includes:

The calculating unit 801 is configured to acquire radio resource load, base station interference parameter, and base station transmit power parameter of each cell managed by the radio network controller in the coverage cell, and transmit the radio resource load, the base station interference parameter, and the base station according to the acquired radio resource load Power parameters, calculate the comprehensive load value of each cell and store it;

The synchronization unit 802 is configured to: when it is determined whether there is a cell that is controlled by another radio network controller in the same coverage cell, synchronize the integrated load value of each cell calculated by the calculation unit 801 to another radio network controller, and receive The combined load value that is synchronized with other wireless network controllers.

The computing unit 801, as shown in FIG. 9, specifically includes:

The obtaining sub-unit 8011 is configured to obtain a radio resource occupied by the UE and a radio resource configured for the cell, and a sum of radio resources configured for the cell;

The transmitting subunit 8012 is configured to send, by the base station that transmits the signal to the cell, a common measurement control command, where the common measurement control command indicates a base station interference value of the measurement cell and a base station transmit power.

The receiving subunit 8013 is configured to receive a public measurement report sent by the base station with the base station interference value of the cell and the base station transmit power. The calculating sub-unit 8014 is configured to calculate a radio resource occupation ratio of the cell according to the radio resource occupied by the accessed UE of the cell and the sum of radio resources configured for the cell, and calculate a ratio of the interference value of the base station to the maximum interference value of the normal working of the base station. Obtaining a base station interference ratio, calculating a ratio of a base station transmit power to a base station maximum transmit power to obtain a base station transmit power ratio; according to each cell, a radio resource occupancy ratio, a base station interference ratio, a base station transmit power ratio, and a preset radio resource occupancy ratio, base station interference Calculating a comprehensive load value of the cell according to a weight value corresponding to a base station transmit power ratio;

The storage subunit 8015 is configured to store a radio resource occupation ratio, a base station interference ratio, a base station transmit power ratio, and an integrated load value.

Further, the calculating unit 801 in the foregoing apparatus is further configured to: when acquiring the updated radio resource load, the base station interference parameter, and the base station transmit power parameter of the cell under the jurisdiction of the radio network controller in the coverage cell, according to the update The radio resource load, the base station interference parameter, and the base station transmit power parameter, recalculate the integrated load value of the cell, and update the stored integrated load value of the cell by using the recalculated integrated load value;

The synchronization unit 802 is also used to synchronize the recalculated integrated load values of the computing unit 801 to other radio network controllers.

The embodiment of the present invention further provides an access device of the same coverage cell, as shown in FIG. 10, including:

The receiving unit 1001 is configured to receive, by the first UE, a request for accessing the first cell in the coverage cell;

Access unit 1002, according to the integrated value with the load cell coverage of each cell stored, selecting a first cell to _the first _UE or the access cover with a second cell in the other cells.

The access device of the coverage cell acquires the radio resource load, the base station interference parameter, and the base station transmit power parameter of each cell in the same coverage cell, and according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter, Calculate the comprehensiveness of each cell under its jurisdiction Load value and store;

When it is determined that there is a cell under the jurisdiction of another radio network controller in the same coverage cell, the calculated integrated load value of each cell under its jurisdiction is synchronized to other radio network controllers, and other radio network controllers are received and stored. Synchronized integrated load value

The access unit 1002 in the foregoing apparatus, as shown in FIG. 11, specifically includes: a determining unit 1101, configured to determine whether the integrated load value of the first cell reaches a preset resource early warning threshold of the first cell;

The determining access unit 1102 is configured to: when the determining unit 1101 determines that the result is yes, access the first UE to the first cell or the other second cell in the same coverage cell according to the preset policy; and the determining unit 1101 determines whether the result is NO. And accessing the first UE to the first cell.

The selective access unit 1102, as shown in FIG. 12, specifically includes: a determining subunit 1201, a first selecting access subunit 1202, and a second selecting access subunit 1203;

For the first strategy, the determining sub-unit 1201 is configured to determine whether the comprehensive load value of each second cell in the same coverage cell reaches the corresponding resource early warning threshold;

The first selection access sub-unit 1202 is configured to sort, according to the comprehensive load value, the second cells in the same coverage cell whose integrated load value is smaller than the resource early warning threshold, when the determination result of the determination sub-unit 1201 is negative. The first UE is connected to another cell with the lowest integrated load value; or it is determined whether the online UE in the first cell can be switched to another cell, and if so, the online UE is switched to access the second cell with the lowest integrated load value. And accessing the first UE to the first cell; if not, accessing the first UE to the second cell with the lowest integrated load value or accessing the first cell;

The second selection access sub-unit 1203 is configured to determine, if the determination result of the sub-unit 1201 is YES, whether there is an online UE that can be decelerated in the first cell, and if yes, after decelerating the online UE that can be decelerated, The first UE is connected to the first cell, and if not, the first UE is connected to the first cell or the first UE is decelerated and then accesses the first cell; or whether the first UE can be slowed down to access the first cell. a cell, if yes, the first UE is decelerated to access the first cell, and if not, the first UE is accessed to the first small Area.

For the second strategy, the determining subunit 1201 is configured to determine whether the sum of the integrated load value of each second cell in the same coverage cell and the corresponding resource early warning offset reaches a corresponding resource early warning threshold;

The first selection access sub-unit 1202 is further configured to: when the determining sub-unit 1201 determines that the result is no, the second cell in the same coverage cell whose sum of the integrated load value and the resource early warning offset is less than the resource early warning threshold. And sorting according to the sum of the integrated load value and the resource early warning offset, and connecting the first UE to another cell with the lowest sum of the integrated load value and the resource early warning offset; or determining whether the online in the first cell can be The UE switches to access other cells, and if yes, switches the online UE to the second cell with the lowest sum of the integrated load value and the resource early warning offset, and accesses the first UE to the first cell; if not, the first cell The UE accesses the second cell with the lowest sum of the integrated load value and the resource early warning offset or accesses the first cell;

The second selection access sub-unit 1203 is configured to determine, if the determination result of the sub-unit 1201 is YES, whether there is an online UE that can be decelerated in the first cell, and if yes, after decelerating the online UE that can be decelerated The first UE is connected to the first cell, and if not, the first UE is connected to the first cell or the first UE is decelerated and then accesses the first cell; or whether the first UE can be slowed down. A cell, if applicable, deactivates the first UE to access the first cell, and if not, accesses the first UE to the first cell.

The method for synchronizing the same coverage cell load information, the access method and the device provided by the embodiment of the present invention, and calculating the comprehensive load of each cell in the same coverage cell according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter The value, and the calculated integrated load value is synchronized to other radio network controllers that are in the same coverage area. When there is a UE requesting access, the UE is based on the integrated load value of each cell in the coverage cell and the set policy. The access is selected to the cell requesting access and other cells in the same coverage cell. Since the calculated integrated load value is obtained by comprehensively considering radio resource load, base station transmit power, base station interference and other radio resources, The radio resource load situation of the coverage cell is uniformly quantized, so that the parameter can be used to select the UE to be accessed between different coverage cells according to the different load conditions of the coverage cell. The balance of radio resource load is effectively realized between cells.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention Industrial applicability

The method for synchronizing the same coverage cell load information, the access method and the device provided by the embodiment of the present invention, and calculating the comprehensive load of each cell in the same coverage cell according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter The value, and the calculated integrated load value is synchronized to other radio network controllers that are in the same coverage area. When there is a UE requesting access, the UE is based on the integrated load value of each cell in the coverage cell and the set policy. The access is selected to the cell requesting access and other cells in the same coverage cell. Since the calculated integrated load value is obtained by comprehensively considering radio resource load, base station transmit power, base station interference and other radio resources, a unified standard quantization is implemented for the radio resource load condition of the same coverage cell, so that the parameter can be utilized according to With different load conditions of the coverage cell, the UEs that are to be accessed are selected and accessed between different coverage cells, and the balance of the radio resource load is effectively realized between the coverage cells.

Claims

Claim

A synchronization method for overlaying cell load information, comprising: acquiring, by a radio network controller, radio resource load, base station interference parameter, and base station transmit power parameter of each cell under the jurisdiction of the coverage cell, and according to Obtaining the radio resource load, the base station interference parameter, and the base station transmit power parameter, and calculating the integrated load value of each cell under its jurisdiction and storing;

When the radio network controller determines that there is a cell under the jurisdiction of the other radio network controller in the same coverage cell, the calculated integrated load value of each cell under its jurisdiction is synchronized to the other radio network controller, and the The integrated load value synchronized by the other wireless network controllers is stored.

The method of claim 1, wherein the radio network controller acquires a radio resource load, a base station interference parameter, and a base station transmit power parameter of each cell in the coverage cell, including:

The radio network controller performs, for each cell under the jurisdiction of the same coverage cell, the radio resource occupied by the user equipment UE and the radio resource configured for the cell;

And transmitting, by the base station that transmits the signal to the cell, a common measurement control command, where the common measurement control command indicates a base station interference value of the measurement cell and a base station transmit power;

Receiving a common measurement report sent by the base station with a base station interference value of the cell and a base station transmission power.

The method according to claim 1, wherein the calculating, according to the acquired radio resource load, the base station interference parameter, and the base station transmit power parameter, the integrated load value of each cell under its jurisdiction and storing, includes:

Calculating and storing the radio resource occupation ratio of the cell according to the obtained radio resource occupied by the UE and the sum of the radio resources configured for the cell; Calculating a ratio of a base station interference value included in the common measurement report to a maximum interference value of a base station working normally, to obtain a base station interference ratio;

Calculating a ratio of a base station transmit power and a base station maximum transmit power included in the common measurement report, obtaining a base station transmit power ratio, storing the base station interference ratio and the base station transmit power ratio; according to each cell's wireless resource occupancy ratio, The base station interference ratio and the base station transmit power ratio and the preset radio resource occupancy ratio, the base station interference ratio, and the base station transmit power ratio corresponding weight values are calculated, and the integrated load value of the cell is calculated and stored.

The method according to claim 1, 2 or 3, further comprising: when the radio network controller acquires the updated radio resource load, the base station interference parameter, and the base station of the cell in the coverage cell When the base station transmits the power parameter, the integrated load value of the cell is recalculated according to the updated radio resource load, the base station interference parameter, and the base station transmit power parameter, and the stored comprehensive load value of the cell is updated by using the recalculated integrated load value. The radio network controller synchronizes the recalculated integrated load value to the other radio network controller.

An access method for a coverage cell, which is characterized in that:

Receiving, by the radio network controller, a request sent by the first UE to access the first cell in the coverage cell;

The radio network controller determines that there is another radio network controller in the same coverage cell. In the case of the jurisdictional cell, the calculated integrated load value of each cell under its jurisdiction is synchronized to the other radio network controller, and the integrated load value synchronized by the other radio network controller is received and stored.

The method according to claim 5, wherein the radio network controller selects to access the first UE to the first cell or according to a stored integrated load value of each cell in the same coverage cell. The other second cells in the same coverage area include:

Determining whether the integrated load value of the first cell reaches a preset resource early warning threshold of the first cell;

If yes, the first UE is accessed to the first cell or another second cell in the same coverage cell according to a preset policy;

If not, accessing the first UE to the first cell.

The method according to claim 6, wherein the accessing the first UE to the first cell or the other second cell in the same coverage cell according to the preset policy includes: Whether the comprehensive load value of each second cell in the coverage cell reaches the resource early warning threshold of the corresponding cell;

If the integrated load value of the at least one second cell is smaller than the corresponding resource early warning threshold, the second cell in the same coverage cell whose integrated load value is smaller than the resource early warning threshold is sorted according to the size of the integrated load value, and the The first UE accesses the second cell with the lowest integrated load value; or

Determining whether the online UE in the first cell can be switched to access the other second cell, and if yes, switching the online UE to the second cell with the lowest integrated load value, and connecting the first UE And entering the first cell; if not, accessing the first UE to the second cell with the lowest integrated load value or accessing the first cell;

If the integrated load value of each of the second cells reaches the corresponding resource early warning threshold, determine whether there is an online UE that can be decelerated in the first cell, and if yes, reduce the online UE that can be decelerated After the first UE is accessed, the first UE accesses the first cell, and if the first UE is deactivated, the first UE is deactivated and then accesses the first UE. Community; or

Determining whether the first UE is capable of decelerating access to the first cell, and if so, deactivating the first UE to the first cell; if not, accessing the first UE to the First cell.

The method according to claim 6, wherein the accessing the first UE to the first cell or the other second cell in the same coverage cell according to the preset policy comprises: determining the same coverage Whether the sum of the integrated load value of the second cell in the cell and the resource early warning offset reaches the corresponding resource early warning threshold;

If the sum of the integrated load value of the at least one second cell and the resource early warning offset is less than the corresponding resource early warning threshold, the sum of the integrated load value and the resource early warning offset is smaller than the resource early warning threshold. Each of the second cells is sorted according to the sum of the integrated load value and the resource early warning offset, and the first UE is accessed by the second cell with the lowest sum of the integrated load value and the resource early warning offset; or

Determining whether the online UE in the first cell can be handed over to the other second cell, and if yes, switching the online UE to the second cell with the lowest sum of the integrated load value and the resource early warning offset, and The first UE is connected to the first cell; if not, the first UE is connected to the second cell with the lowest sum of the integrated load value and the resource early warning offset or accessing the first cell; If the sum of the integrated load value of the other second cell and the resource early warning offset reaches the corresponding resource early warning threshold, it is determined whether there is an online UE that can be decelerated in the first cell, and if yes, the After the fast online UE is decelerating, the first UE is connected to the first cell, and if not, the first UE is accessed to the first cell or the first UE is decelerated. Into the first cell; or

Determining whether the first UE is capable of decelerating access to the first cell, and if so, deactivating the first UE to the first cell, and if not, accessing the first UE to the First cell.

9. A synchronization device that covers the load information of a cell, and is characterized by: a calculating unit, configured to acquire radio resource load, base station interference parameter, and base station transmit power parameter of each cell managed by the radio network controller in the coverage cell, and according to the acquired radio resource load, the base station interference parameter, and the base station transmit power a parameter, calculating a comprehensive load value of each cell and storing the value;

a synchronization unit, configured to: when it is determined that there is a cell that is controlled by another radio network controller in the same coverage cell, synchronize the integrated load value of each cell calculated by the calculation unit to the other radio network controller, and Receiving and storing the integrated load value synchronized by the other radio network controllers.

The device according to claim 9, wherein the calculating unit comprises: an acquiring subunit, configured to acquire the radio resource occupied by the d, the area that has accessed the UE, and the sum of the radio resources configured for the cell. ;

a sending subunit, configured to send a common measurement control command to a base station that transmits a signal to the cell, where the common measurement control command indicates a base station interference value of the measurement cell and a base station transmit power; and a receiving subunit, configured to receive a band sent by the base station There is a common measurement report of the base station interference value of the cell and the base station transmission power.

The device according to claim 10, wherein the calculating unit further comprises: a calculating subunit, configured to use, according to the acquired radio resource occupied by the UE, the radio resource occupied by the UE and the sum of the radio resources configured for the cell Calculating the ratio of the radio resource occupancy of the cell; calculating the ratio of the base station interference value to the maximum interference value of the base station to obtain the base station interference ratio, calculating the ratio of the base station transmit power to the base station maximum transmit power to obtain the base station transmit power ratio; Calculating a comprehensive load value of the cell according to a radio resource occupancy ratio, a base station interference ratio, a base station transmit power ratio, a preset radio resource occupancy ratio, a base station interference ratio, and a base station transmit power ratio;

And a storage subunit, configured to store the radio resource occupation ratio, the base station interference ratio, the base station transmit power ratio, and the integrated load value.

12. Apparatus according to claim 9, 10 or 11 wherein: The calculating unit is further configured to: according to the updated radio resource load, the base station interference parameter, and the base station transmit power parameter of the cell that is in the same cell as the radio network controller that belongs to the coverage cell, according to the updated radio resource load, Base station interference parameter and base station transmit power parameter, recalculating the integrated load value of the cell, and updating the stored integrated load value of the cell by using the recalculated integrated load value;

The synchronization unit is further configured to synchronize the recalculated integrated load value of the computing unit to the other radio network controller.

An access device for a coverage cell, comprising:

An access unit, configured to select, according to the integrated load value of each cell in the same coverage cell, the first UE to access the first cell or another second cell in the same coverage cell;

The access device of the same coverage cell acquires the radio resource load, the base station interference parameter, and the base station transmit power parameter of each cell under the jurisdiction of the coverage cell, and according to the acquired radio resource load, the base station interference parameter, and the base station transmit power. Parameters, calculate the comprehensive load value of each cell under its jurisdiction and store it;

When it is determined that there is a cell under the jurisdiction of another radio network controller in the same coverage cell, the calculated integrated load value of each cell under the jurisdiction is calculated to be synchronized to the other radio network controller, and the storage and storage are performed. The combined load value of other wireless network controllers.

The device according to claim 13, wherein the access unit specifically includes:

a determining unit, configured to determine whether the integrated load value of the first cell reaches a preset resource early warning threshold of the first cell;

Selecting an access unit, when the judgment unit determines that the result is yes, according to a preset policy The first UE accesses the first cell or another second cell in the same coverage cell; when the determining unit determines that the result is no, the first UE is accessed to the first cell.

The device according to claim 14, wherein the selecting the access unit comprises:

a determining subunit, configured to determine whether a comprehensive load value of each second cell in the same coverage cell reaches a corresponding resource early warning threshold;

a first selection access subunit, configured to: according to the size of the comprehensive load value, the second cell in the same coverage cell whose integrated load value is smaller than the resource early warning threshold when the judgment subunit determines that the result is negative, And the first UE is connected to another cell with the lowest integrated load value; or determining whether the online UE in the first cell can be switched to access the other cell, and if yes, switching the online UE to the integrated load value. a lowest second cell, and accessing the first UE to the first cell; if not, accessing the first UE to a second cell with the lowest integrated load value or accessing the first cell;

a second selection access sub-unit, configured to determine, if the determination result of the determining sub-unit is yes, whether there is an online UE that can be decelerated in the first cell, and if yes, after the decelerating online UE is decelerated The first UE is connected to the first cell, and if not, the first UE is accessed to the first cell or the first UE is decelerated and then accesses the first cell; Or determining whether the first UE is capable of decelerating to access the first cell, and if so, deactivating the first UE to the first cell, and if not, accessing the first UE to the first a cell.

a determining subunit, configured to determine whether a sum of a combined load value of each second cell in the same coverage cell and a corresponding resource early warning offset reaches a corresponding resource early warning threshold;

a first selection access subunit, configured to: when the judgment subunit determines that the result is no, the sum of the integrated load value and the resource early warning offset is smaller than the resource coverage threshold The second cell is sorted according to the size of the sum of the integrated load value and the resource early warning offset, and the first

The UE accesses another cell with the lowest sum of the integrated load value and the resource early warning offset; or determines whether the online UE in the first cell can be handed over to the other cell, and if so, the online UE is switched to access a second cell having the lowest sum of the integrated load value and the resource early warning offset, and accessing the first UE to the first cell; if not, accessing the first UE to the integrated load value and the resource early warning a second cell having the lowest sum of shifts or accessing the first cell;

a second selection access sub-unit, configured to determine, if the judgment sub-unit determines that the result is yes, whether there is an online UE that can be decelerated in the first cell, and if yes, decelerate the decelerated online UE After the first UE is connected to the first cell, if the first UE is not available, the first UE is accessed to the first cell or the first UE is decelerated and then accesses the first cell. Or determining whether the first UE can be decelerated to access the first cell, and if so, deactivating the first UE to the first cell, and if not, accessing the first UE to the First cell.