CN106454951A - Method and device for balancing network load - Google Patents

Abstract

The embodiment of the present invention discloses a method and device for balancing network load, relates to the field of communication technology, and is used to solve the problem that resources of a shared frequency point with lower power among two shared frequency points configured in a shared base station are wasted. The method includes: the shared base station monitors the first load difference between the first cell covered by the first shared frequency point and the second cell covered by the second shared frequency point; when the first load difference is greater than the first preset threshold, the shared base station The first system message is broadcast on the first shared frequency, and the first system message includes information indicating that the priority of the second cell is higher than that of the first cell, the condition for reselecting to a high-priority cell, and the first startup exception. Frequency handover condition, the reselection condition to high-priority cell is: the receiving level value of the cell selection signal of the second cell is greater than the difference between the first default value and the first offset value; the first start-up inter-frequency handover condition is: the first The signal strength of the second cell is greater than the difference between the second default value and the second offset value.

Description

Method and device for balancing network load

technical field

The invention relates to the technical field of communications, in particular to a method and device for balancing network loads.

Background technique

Base station sharing means that multiple operators share the same site resources of the same base station (hereinafter referred to as "shared base station"). Base station sharing can speed up the realization of 4G network coverage and save investment costs in network construction. However, when the shared base station is configured with two shared frequency points of two different operators (one operator corresponds to a shared frequency point, the shared frequency point refers to the public land mobile services of the two different operators that need to be broadcast simultaneously on this frequency point network (Public Land Mobile Network, referred to as PLMN) frequency), and the power of the two shared frequency points is different, the user equipment (User Equipment, referred to as UE) that supports the two shared frequency points when accessing the network , give priority to camping in the cell covered by the frequency point with higher power, because the signal strength of the cell covered by the frequency point with higher power is also stronger, therefore, the UE camping in the cell covered by the frequency point with higher power is also very difficult It is difficult to reselect or switch to a cell covered by a frequency point with a lower power, so that frequency resources with a lower power are wasted.

Contents of the invention

Embodiments of the present invention provide a method and device for balancing network loads, which are used to solve the problem of wasting resources of a shared frequency point with lower power among two shared frequency points configured in a shared base station.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, a method for balancing network load is provided, including:

The shared base station monitors the first load difference between the first cell covered by the first shared frequency point and the second cell covered by the second shared frequency point, wherein the first shared frequency point and the second shared frequency point are both configured in the shared base station Frequency points, the power of the first shared frequency point is greater than the power of the second shared frequency point;

When the first load difference is greater than the first preset threshold, the shared base station broadcasts a first system message on the first shared frequency point, and the first system message includes a message indicating that the priority of the second cell is higher than that of the first cell The information, the reselection condition to the high priority cell and the first inter-frequency handover start condition, the reselection condition to the high priority cell is: the receiving level value of the cell selection signal of the second cell is greater than the first default value and the first offset The difference between the set values, the first default value is the default threshold value of the reselection condition to a high-priority cell; the first condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the second default value and the second offset The difference between values, the second default value is the default threshold value for starting the inter-frequency handover condition, and the first preset threshold value, the first offset value and the second offset value are all greater than 0.

In the second aspect, a method for balancing network load is provided, including:

The user equipment receives the first system message broadcast by the shared base station. The first system message is the system broadcast by the shared base station on the first shared frequency point after determining that the first load difference between the first cell and the second cell is greater than a first preset threshold. message, the first cell is the cell covered by the first shared frequency configured in the shared base station, the second cell is the cell covered by the second shared frequency configured in the shared base station, and the power of the first shared frequency is greater than that of the second shared frequency Point power, the user equipment is located in the common area of the first cell and the second cell, and the user equipment is a user equipment camped in the first cell, the first preset threshold is greater than 0;

When the user equipment is in the idle state, the user equipment determines that the second cell is a high-priority cell according to the information included in the first system message indicating that the priority of the second cell is higher than that of the first cell, if the user equipment It is determined that the receiving level value of the cell selection signal of the second cell satisfies the reselection condition to the high priority cell included in the first system message, the user equipment reselects to the high priority cell, and the reselection condition to the high priority cell is: The receiving level value of the cell selection signal of the second cell is greater than the difference between the first default value and the first offset value, the first default value is the default threshold value of the reselection condition to a high-priority cell, and the first offset value is greater than 0;

When the user equipment is in the connected state, if the user equipment determines that the signal strength of the second cell satisfies the first condition for starting inter-frequency handover included in the first system message, the user equipment performs cell handover, and the first condition for starting inter-frequency handover is: the first condition for starting inter-frequency handover The signal strength of the second cell is greater than a difference between a second default value and a second offset value, the second default value is a default threshold value for starting an inter-frequency handover condition, and the second offset value is greater than 0.

In a third aspect, a shared base station is provided, including:

A monitoring unit, configured to monitor the first load difference between the first cell covered by the first shared frequency point and the second cell covered by the second shared frequency point, wherein the first shared frequency point and the second shared frequency point are both shared base stations The frequency points configured in , the power of the first shared frequency point is greater than the power of the second shared frequency point;

a broadcasting unit, configured to broadcast a first system message on a first shared frequency point when the first load difference is greater than a first preset threshold, and the first system message includes information indicating that the priority of the second cell is higher than that of the first cell The priority information, the condition for reselecting to a high-priority cell and the condition for starting inter-frequency handover first, the condition for reselecting to a high-priority cell is: the receiving level value of the cell selection signal of the second cell is greater than the first default value and The difference of the first offset value, the first default value is the default threshold value of the reselection condition to the high priority cell; the first start inter-frequency handover condition is: the signal strength of the second cell is greater than the second default value and the first The difference between the two offset values, the second default value is the default threshold value for starting the inter-frequency handover condition, and the first preset threshold value, the first offset value and the second offset value are all greater than 0.

In a fourth aspect, a user equipment is provided, including:

The receiving unit is configured to receive the first system message broadcast by the shared base station, the first system message is that the shared base station determines that the first load difference between the first cell and the second cell is greater than the first preset threshold value on the first shared frequency point Broadcast system information, the first cell is the cell covered by the first shared frequency point configured in the shared base station, the second cell is the cell covered by the second shared frequency point configured in the shared base station, and the power of the first shared frequency point is greater than that of the second shared frequency point 2. The power of the shared frequency point, the user equipment is located in the common area of the first cell and the second cell, and the user equipment is a user equipment residing in the first cell, and the first preset threshold is greater than 0;

an executing unit, configured to determine that the second cell is a high-priority cell according to information included in the first system message indicating that the priority of the second cell is higher than that of the first cell when the user equipment is in an idle state, If it is determined that the receiving level value of the cell selection signal of the second cell satisfies the reselection condition to the high priority cell included in the first system message, reselect to the high priority cell, and the reselection condition to the high priority cell is: the second The cell selection signal reception level value of the cell is greater than the difference between the first default value and the first offset value, the first default value is the default threshold value of the reselection condition to a high-priority cell, and the first offset value is greater than 0 ; or, when the user equipment is in the connected state, if it is determined that the signal strength of the second cell meets the first condition for starting inter-frequency handover included in the first system message, perform cell handover, and the first condition for starting inter-frequency handover is: The signal strength of the second cell is greater than a difference between a second default value and a second offset value, the second default value is a default threshold value for starting an inter-frequency handover condition, and the second offset value is greater than 0.

In the method and device provided by the embodiments of the present invention, when the load difference between the first cell and the second cell is greater than the first preset threshold, the cell reselection condition in the first system message broadcast by the sharing base station makes the idle cell in the first cell The UEs in the connected state are more likely to be reselected, and the cell switching conditions in the broadcasted first system message make the UEs in the connected state more likely to switch, so that some UEs in the first cell are transferred to the second cell to achieve load balancing of the network system and prevent The waste of the second shared frequency resource is avoided. Moreover, in the present invention, it is determined whether to make the UE in the first cell perform reselection or handover according to whether the load difference between the first cell and the second cell is greater than the first preset threshold. Compared with determining whether to make the UE in the first cell perform reselection or handover by determining the load size of the second cell, it can prevent the UE from frequently switching cells and reduce the signaling overhead of the network.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of coverage of a shared base station provided by an embodiment of the present invention;

FIG. 2 is a flow chart of a method for balancing network loads provided by an embodiment of the present invention;

FIG. 3 is a flowchart of another method for balancing network load provided by an embodiment of the present invention;

FIG. 4 is a schematic composition diagram of a shared base station provided by an embodiment of the present invention;

FIG. 5 is a schematic composition diagram of another shared base station provided by an embodiment of the present invention;

FIG. 6 is a schematic composition diagram of a user equipment provided by an embodiment of the present invention;

Fig. 7 is a schematic composition diagram of another user equipment provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The UE in the description of the embodiments of the present invention may be a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or user device. The access terminal can be a cellular phone, a Personal Digital Assistant (PDA for short), a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, and a terminal device in the future 5G network.

Multiple independent frequency points of multiple operators sharing the base station can be configured on the shared base station. An operator corresponds to an independent frequency point, which is only used by users of the operator. An independent frequency point corresponding to an operator Only the PLMN number of the operator is broadcast; multiple shared frequency points of multiple operators sharing the base station can also be configured on the shared base station, one operator corresponds to a shared frequency point, and the frequency point can be used by the multiple operators For user use, the shared frequency point corresponding to one operator simultaneously broadcasts the PLMN numbers of the multiple operators.

The application scenario of the method provided by the embodiment of the present invention is shown in Figure 1. Two shared frequency points f ₁ and f ₂ are configured in the shared base station, and the power of f ₁ is greater than the power of f _2. The UE in the embodiment of the present invention is located at The public area of the cell covered by f ₁ and the cell covered by f ₂ , and the UE can support these two frequency points. When the UE accesses the network, it defaults to the cell covered by the frequency point with higher power. It is precisely because of this _The reason is that the load _of the cell covered by f1 and the cell covered by f2 is unbalanced, and the resource of frequency point f2 is wasted. Based _on this problem, the embodiment of the present invention proposes a method for balancing network load.

The embodiment of the present invention provides a method for balancing network load, as shown in Figure 2, including:

201. The shared base station monitors a first load difference between a first cell covered by a first shared frequency point and a second cell covered by a second shared frequency point.

Wherein, both the first shared frequency point and the second shared frequency point are frequency points configured in the shared base station, and the power of the first shared frequency point is greater than the power of the second shared frequency point.

In specific implementation of step 201, the shared base station can obtain the load of the first cell and the load of the second cell, and make a difference between the load of the first cell and the load of the second cell to obtain the load difference between the first cell and the second cell. Specifically, the shared base station can acquire the load of the cell through the utilization rate of physical resource blocks (physical resource block, PRB for short) and/or the number of radio resource control (Radio Resource Control, RRC for short) connections in the cell.

In combination with the scenario shown in FIG. 1 , the first shared frequency point may be f ₁ , and the second shared frequency point may be f ₂ .

202. When the first load difference is greater than a first preset threshold, the shared base station broadcasts a first system message on a first shared frequency point.

Wherein, the first system message includes information indicating that the priority of the second cell is higher than that of the first cell, the condition for reselecting to a high-priority cell and the first condition for starting inter-frequency handover, and the condition for reselecting to a high-priority cell The selection condition is: the receiving level value of the cell selection signal of the second cell is greater than the difference between the first default value and the first offset value, and the first default value is the default threshold value of the reselection condition to a high priority cell; A condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the difference between the second default value and the second offset value, the second default value is the default threshold value for starting the inter-frequency handover condition, and the first preset threshold value is , the first offset value and the second offset value are all greater than 0.

It should be noted that the conditions for reselecting to a high-priority cell, starting an inter-frequency handover, and the conditions for starting an inter-frequency measurement, reselecting a low-priority cell, and stopping an inter-frequency measurement included in the system message All are configured at the cell level, therefore, the reselection condition (or handover condition) in the first system message broadcast by the shared base station on the first shared frequency point is only used for the idle state UE (or connected state UE) in the first cell It is used when performing reselection (or handover), and is not used for reselection (or handover) by idle state UEs (or connected state UEs) in the second cell. Idle state UEs (or connected state UEs) in the second cell ) performing reselection (or handover) according to the reselection condition (or handover condition) included in the system message sent by the shared base station at the second shared frequency point.

The first preset threshold, the first offset value, and the second offset value can be determined according to actual application scenarios, but these values should not be too small, otherwise, because the idle state UE (or connected state UE) in the first cell is still very It is difficult to satisfy the above reselection conditions (or switching conditions), thereby affecting the efficiency of balancing network loads. For example, the first preset threshold may be 30% or 25%, etc., the first offset value may be 10dB or 15dB, and the second offset value may be 10dBm or 15dBm.

203. The UE receives the first system message broadcast by the shared base station, the UE is located in a common area of the first cell and the second cell, and the UE is a UE camped on the first cell.

204. When the UE is in the idle state, the UE determines that the second cell is a high-priority cell according to the information included in the first system message indicating that the priority of the second cell is higher than that of the first cell, if the UE determines that The receiving level value of the cell selection signal of the second cell satisfies the condition for reselecting to a high-priority cell included in the first system message, and the UE reselects to a high-priority cell; when the UE is in the connected state, if the UE determines that the second cell The signal strength of the UE satisfies the first condition for starting inter-frequency handover included in the first system message, and the UE performs cell handover.

Specifically, the receiving level value of the cell selection signal of the second cell is denoted as S ₂ , then when the UE in the idle state determines that S ₂ >Thresh _high -Δ _high , the UE in the idle state satisfies the reselection condition to a high-priority cell, where , Thresh _high is the first default value, and _Δhigh is the first bias value.

In the embodiment of the present invention, firstly, the priority of the second cell is set higher than that of the first cell, and the idle state UE in the first cell determines that the second cell is of high priority after receiving the first system message. level cell, the UE measures the cell selection signal receiving level value S ₂ of the second cell, and judges whether S ₂ >Thresh _high -Δ _high is true, and if so, the UE in the idle state performs cell reselection, since it reselects to a high priority cell The condition is: S ₂ >Thresh _high -Δ _high , making it easier for the idle state UE to meet the condition of reselecting to a high priority cell, so that when the load difference between the first cell and the second cell is greater than the first preset threshold, the second Part of idle UEs in one cell are transferred to the second cell through cell reselection to achieve load balancing.

Specifically, the signal strength of the second cell is recorded as P ₂ , then the first condition for starting inter-frequency handover is: P ₂ >P _thre2 -Δ _offset2 , where P _thre2 is the second default value, and Δ _offset2 is the second offset value.

After receiving the first system message, the UE in the connected state in the first cell measures P ₂ and judges whether P ₂ >P _thre2 -Δ _offset2 holds. If so, the UE in the connected state performs inter-frequency handover. The handover condition is: P ₂ >P _thre2 -Δ _offset2 , making it easier for the UE in the connected state to meet the conditions for starting inter-frequency handover, so that when the load difference between the first cell and the second cell is greater than the first preset threshold, the first Part of the UEs in the connected state in the cell are transferred to the second cell through cell handover to achieve load balancing.

In specific implementation of step 204, when the UE is in the connected state, if the UE determines that the signal strength of the second cell satisfies the first inter-frequency handover condition included in the first system message, the UE performs cell handover, including:

When the UE is in the connected state, if the UE determines that the priority of the second cell is higher than that of the first cell, and the signal strength of the second cell satisfies the first condition for starting inter-frequency handover, the UE performs cell handover.

In the method provided by the embodiment of the present invention, when the load difference between the first cell and the second cell is greater than the first preset threshold, sharing the cell reselection condition in the first system message broadcast by the base station makes the idle state UE in the first cell Reselection is more likely to occur, and the cell handover condition in the broadcasted first system message makes it easier for UEs in the connected state to be handed over, thereby transferring some UEs in the first cell to the second cell, realizing load balancing of the network system, and preventing the second cell. 2. Waste of shared frequency resources.

Moreover, in the present invention, it is determined whether to make the UE in the first cell perform reselection or handover according to whether the load difference between the first cell and the second cell is greater than the first preset threshold. Compared with determining whether to make the UE in the first cell perform reselection or handover by determining the load size of the second cell, it can prevent the UE from frequently switching cells and reduce the signaling overhead of the network.

Optionally, the first system message also includes a first condition for starting inter-frequency measurement and a first condition for stopping inter-frequency measurement. The first condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value and the third default value. The sum of offset values, the third default value is the default threshold value for starting the inter-frequency measurement condition; the first stop inter-frequency measurement condition is: the signal strength of the first cell is greater than the sum of the fourth default value and the fourth offset value , the fourth default value is the default threshold value of the condition for stopping the inter-frequency measurement, and the third offset value and the fourth offset value are both greater than 0.

In this case, when the UE is in the connected state, if the UE determines that the signal strength of the first cell meets the first condition for starting inter-frequency measurement, the UE starts inter-frequency measurement; if the UE determines that the signal strength of the first cell meets the first condition for stopping inter-frequency measurement Measurement conditions, the UE stops inter-frequency measurement.

Wherein, the third offset value and the fourth offset value may be determined according to actual application scenarios. Exemplarily, the third offset value may be 10dBm or 15dBm, and the fourth offset value may be 15dBm or 20dBm.

Denoting the signal strength of the first cell as P ₁ , the first condition for starting inter-frequency measurement is: P ₁ <P _thre3 +Δ _offset3 , where P _thre3 is the third default value, and Δ _offset3 is the third offset value.

After receiving the first system message, the UE in the connected state in the first cell determines P ₁ , and judges whether P ₁ <P _thre3 +Δ _offset3 is established, and if so, starts inter-frequency measurement, because the first inter-frequency measurement condition for starting is : P ₁ <P _thre3 +Δ _offset3 , making it easier for the UE in the connected state to meet the condition for starting inter-frequency measurement.

This optional method can also make it more difficult for the UE in the connected state in the first cell to meet the condition of stopping inter-frequency measurement, and ensure the handover of the UE in the connected state in the first cell to the second cell.

Optionally, after step 202, the method further includes: if the shared base station determines that the second load difference is smaller than a second preset threshold, the shared base station broadcasts a second system message on the first shared frequency, and the second system message includes information for Information indicating that the priority of the first cell is higher than that of the second cell, the first condition for reselection to a low-priority cell, the second condition for starting inter-frequency measurement, the second condition for starting inter-frequency handover, and the second condition for stopping inter-frequency Measurement conditions: the first reselection condition to a low priority cell is: the receiving level value of the cell selection signal of the second cell is greater than the fifth default value, and the fifth default value is the default threshold value of the reselection condition to a low priority cell ; The second condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value; the second condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the second default value; the second condition for stopping inter-frequency measurement is: the signal strength of the first cell is greater than the fourth default value, the second preset threshold is smaller than the first preset threshold, and the second load difference is the first cell and the second cell re-determined by the shared base station after broadcasting the first system message load difference.

In this case, after step 204, the UE also performs the following steps: the UE receives the second system information broadcast by the shared base station on the first shared frequency point; The priority information of the second cell determines that the second cell is a low-priority cell. If the UE determines that the cell selection signal reception level of the second cell satisfies the first low-priority cell reselection condition, the UE selects the low-priority cell Reselection; when the UE is in the connected state, if the UE determines that the signal strength of the first cell meets the second condition for starting inter-frequency measurement, and the signal strength of the second cell meets the second condition for starting inter-frequency handover, the UE performs cell handover; if The UE determines that the signal strength of the first cell satisfies the second condition for stopping the inter-frequency measurement, and the UE stops the inter-frequency measurement.

In this optional method, after the shared base station broadcasts the first system message, it starts to balance the network load, and does not send the second system message until the load difference is smaller than the second preset threshold, because the idle state UE in the first cell (or According to the reselection condition (or handover condition) in the second system message, reselection (or handover) is not easy to occur for the UE in the connected state. Therefore, when the shared base station broadcasts the second system message, it can be considered that the balanced network load ends.

In the process of balancing the network load, if the load balance is ended when the load difference is just below the first preset threshold, then the load difference will easily reach the first preset threshold again, and then the shared base station will start balancing the network again. Therefore, in this embodiment of the present invention, the load balance can be terminated when the load difference is lower than the second preset threshold (the second preset threshold is smaller than the first preset threshold). prevent this from happening.

Optionally, after the shared base station broadcasts the second system message on the first shared frequency, the method further includes: the shared base station judges whether the third load difference is greater than a first preset threshold, and if so, the shared base station broadcasts the second system message on the first shared frequency. Click to rebroadcast the first system message, if not, the shared base station continues to broadcast the second system message on the first shared frequency point; the third load difference is the re-determined first cell and second cell after the shared base station broadcasts the second system message The load of the district is poor.

In the process of balancing the network load, if the load balance is started when the load difference is just higher than the second preset threshold, then the load difference will easily be smaller than the second preset threshold, and then the shared base station will end the balanced network again. Therefore, in this embodiment of the present invention, when the load difference is higher than the first preset threshold (the first preset threshold is greater than the second preset threshold), the load balance can be started. prevent this from happening.

Optionally, the above method further includes: the shared base station broadcasts a third system message on the second shared frequency, where the third system message includes information indicating that the priority of the second cell is higher than that of the first cell, The second low priority cell reselection condition and the third stop inter-frequency measurement condition; the second low priority cell reselection condition is: the cell selection signal reception level value of the second cell is less than the fifth default value and the fifth default value The difference between the offset values, the fifth default value is the default threshold value of the reselection condition to the low priority cell; the third stop inter-frequency measurement condition is: the signal strength of the second cell is greater than the fourth default value and the sixth offset value The difference between the set values, the fifth offset value and the sixth offset value are both greater than 0.

Wherein, the fifth offset value and the sixth offset value may be determined according to actual application scenarios, for example, the fifth offset value may be 20dB, and the sixth offset value may be 20dBm.

In this optional method, the reselection condition of the second-to-low-priority cell is set as: the cell selection signal reception level value of the second cell is smaller than the difference between the fifth default value and the fifth offset value, so that the second It is more difficult for the idle state UE in the cell to reselect, so that the idle state UE in the second cell can stay in the second cell stably, by setting the third stop inter-frequency measurement condition as: the signal strength of the second cell The difference greater than the fourth default value and the sixth offset value makes it easier for the UE in the connected state in the second cell to meet the condition for stopping inter-frequency measurement, so that the UE in the connected state in the second cell can stably camp on the second In the cell, the ping-pong handover of the UE in the first cell and the second cell is prevented.

The following is an exemplary description of the process of sharing the base station to balance the network load, as shown in Figure 3, including:

301. A shared base station monitors a first load difference between a first cell and a second cell.

302. The shared base station determines whether the first load difference is greater than a first preset threshold.

If yes, step 303 is executed; if not, the shared base station executes the process performed by the shared base station in the prior art, and no detailed description is given here.

303. The shared base station broadcasts the first system message on the first shared frequency point.

After the shared base station broadcasts the first system message, the UE in the first cell may perform corresponding actions in the above step 204 .

304. The shared base station monitors a second load difference between the first cell and the second cell.

305. The shared base station determines whether the second load difference is smaller than a second preset threshold.

If yes, go to step 306; if not, go to step 303.

306. The shared base station broadcasts the second system message on the first shared frequency point.

After the shared base station broadcasts the second system message, when the UE in the first cell is in an idle state, the UE determines that the second cell is a low-priority cell according to the information that the priority of the first cell is higher than that of the second cell, If the UE determines that the cell selection signal reception level of the second cell satisfies the reselection condition for the first low-priority cell, the UE reselects to the low-priority cell; when the UE in the first cell is in the connected state, if the UE determines that The signal strength of the first cell meets the second start inter-frequency measurement condition, and the signal strength of the second cell meets the second start inter-frequency handover condition, the UE performs cell handover; if the UE determines that the signal strength of the first cell meets the second stop inter-frequency measurement condition The UE stops the inter-frequency measurement condition.

307. The shared base station monitors a third load difference between the first cell and the second cell.

308. The shared base station determines whether the third load difference is greater than a first preset threshold.

If yes, return to step 303; if not, return to step 306.

In addition, the shared base station may also periodically broadcast the third system message on the second shared frequency point, which is not shown in FIG. 3 .

Relevant explanations and beneficial effects in steps 301 to 308 can be referred to above, and will not be repeated here.

The embodiment of the present invention also discloses a shared base station 40, as shown in FIG. 4 , including:

A monitoring unit 401, configured to monitor a first load difference between a first cell covered by a first shared frequency point and a second cell covered by a second shared frequency point, wherein the first shared frequency point and the second shared frequency point The points are all frequency points configured in the shared base station, and the power of the first shared frequency point is greater than the power of the second shared frequency point;

The broadcasting unit 402 is configured to broadcast a first system message on the first shared frequency point when the first load difference is greater than a first preset threshold, and the first system message includes a message indicating that the second Information that the priority of the cell is higher than that of the first cell, the condition for reselecting to a high-priority cell, and the first condition for starting an inter-frequency handover, and the condition for reselecting to a high-priority cell is: the second The cell selection signal reception level value of the cell is greater than the difference between the first default value and the first offset value, and the first default value is the default threshold value of the reselection condition to a high-priority cell; the first start The inter-frequency handover condition is: the signal strength of the second cell is greater than the difference between the second default value and the second offset value, the second default value is a default threshold value for starting the inter-frequency handover condition, and the first A preset threshold, the first offset value and the second offset value are all greater than 0.

Optionally, the first system message further includes a first condition for starting inter-frequency measurement and a first condition for stopping inter-frequency measurement, and the first condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the first The sum of the three default values and the third offset value, the third default value is the default threshold value for starting the inter-frequency measurement condition; the first stop inter-frequency measurement condition is: the signal strength of the first cell is greater than A sum of a fourth default value and a fourth offset value, where the fourth default value is a default threshold value for stopping inter-frequency measurement conditions, and both the third offset value and the fourth offset value are greater than 0.

Optionally, the broadcast unit 402 is also used to:

When the monitoring unit 401 determines that the second load difference is smaller than the second preset threshold, broadcast a second system message on the first shared frequency, where the second system message includes a message indicating the first cell Information with a priority higher than that of the second cell, a first condition for reselecting to a low-priority cell, a second condition for starting inter-frequency measurement, a second condition for starting inter-frequency handover, and a second condition for stopping inter-frequency measurement; The first reselection condition to a low-priority cell is: the cell selection signal receiving level value of the second cell is greater than a fifth default value, and the fifth default value is the default reselection condition to a low-priority cell Threshold value; the second condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value; the second condition for starting inter-frequency handover is: the signal strength of the second cell greater than the second default value; the second condition for stopping inter-frequency measurement is: the signal strength of the first cell is greater than the fourth default value, and the second preset threshold is smaller than the first preset threshold , the second load difference is the load difference between the first cell and the second cell re-determined by the monitoring unit 401 after the broadcast unit 402 broadcasts the first system message.

Optionally, the broadcast unit 402 is also used to:

When the monitoring unit 401 determines that the third load difference is greater than the first preset threshold, rebroadcast the first system message on the first shared frequency point, the third load difference being the monitoring unit 401. The load difference between the first cell and the second cell is re-determined after the broadcast unit 402 broadcasts the second system message.

Optionally, the broadcast unit 402 is also used to:

Broadcasting a third system message on the second shared frequency, where the third system message includes information indicating that the priority of the second cell is higher than that of the first cell, the second direction Low-priority cell reselection conditions and the third inter-frequency measurement stop condition; the second low-priority cell reselection condition is: the cell selection signal reception level value of the second cell is less than the fifth default value and the first The difference between five offset values, the fifth default value is the default threshold value of the reselection condition to a low-priority cell; the third stop inter-frequency measurement condition is: the signal strength of the second cell is greater than the first The difference between the four default values and the sixth offset value, the fifth offset value and the sixth offset value are both greater than 0.

Each unit in the shared base station 40 provided by the embodiment of the present invention is used to execute the above method. Therefore, the beneficial effects of the shared base station 40 can be referred to the beneficial effects of the above method, which will not be repeated here.

The embodiment of the present invention also discloses a shared base station 50 , as shown in FIG. 5 , including: a memory 501 , a processor 502 and a transmitter 503 .

Wherein, the memory 501, the processor 502 and the transmitter 503 are coupled together through a bus system 504, wherein the memory 501 may include a random access memory, and may also include a non-volatile memory, such as at least one disk memory. The bus system 504 may be an Industry Standard Architecture (ISA for short) bus, a Peripheral Component Interconnect (PCI for short) bus or an Extended Industry Standard Architecture (EISA for short) bus, etc. The bus system 504 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 5 , but it does not mean that there is only one bus or one type of bus.

The memory 501 is used to store a set of codes, and the processor 502 can perform the following actions according to the set of codes:

Monitoring the first load difference between the first cell covered by the first shared frequency point and the second cell covered by the second shared frequency point, wherein both the first shared frequency point and the second shared frequency point are the shared Frequency points configured in the base station, the power of the first shared frequency point is greater than the power of the second shared frequency point;

The transmitter 503 is configured to, when the first load difference is greater than a first preset threshold, broadcast a first system message on the first shared frequency point, where the first system message includes information indicating that the second Information that the priority of the cell is higher than that of the first cell, the condition for reselecting to a high-priority cell, and the first condition for starting an inter-frequency handover, and the condition for reselecting to a high-priority cell is: the second The cell selection signal reception level value of the cell is greater than the difference between the first default value and the first offset value, and the first default value is the default threshold value of the reselection condition to a high-priority cell; the first start The inter-frequency handover condition is: the signal strength of the second cell is greater than the difference between the second default value and the second offset value, the second default value is a default threshold value for starting the inter-frequency handover condition, and the first A preset threshold, the first offset value and the second offset value are all greater than 0.

Optionally, the first system message further includes a first condition for starting inter-frequency measurement and a first condition for stopping inter-frequency measurement, and the first condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the first The sum of the three default values and the third offset value, the third default value is the default threshold value for starting the inter-frequency measurement condition; the first stop inter-frequency measurement condition is: the signal strength of the first cell is greater than A sum of a fourth default value and a fourth offset value, where the fourth default value is a default threshold value for stopping inter-frequency measurement conditions, and both the third offset value and the fourth offset value are greater than 0.

Optionally, the transmitter 503 is also used for:

When the processor 502 determines that the second load difference is smaller than the second preset threshold, broadcast a second system message on the first shared frequency point, where the second system message includes information indicating the first cell Information with a priority higher than that of the second cell, a first condition for reselecting to a low-priority cell, a second condition for starting inter-frequency measurement, a second condition for starting inter-frequency handover, and a second condition for stopping inter-frequency measurement; The first reselection condition to a low-priority cell is: the cell selection signal receiving level value of the second cell is greater than a fifth default value, and the fifth default value is the default reselection condition to a low-priority cell Threshold value; the second condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value; the second condition for starting inter-frequency handover is: the signal strength of the second cell greater than the second default value; the second condition for stopping inter-frequency measurement is: the signal strength of the first cell is greater than the fourth default value, and the second preset threshold is smaller than the first preset threshold , the second load difference is a load difference between the first cell and the second cell that is re-determined after the transmitter 503 broadcasts the first system message.

Optionally, the transmitter 503 is also used for:

When the processor 502 determines that the third load difference is greater than the first preset threshold, rebroadcast the first system message on the first shared frequency point, the third load difference is The load difference between the first cell and the second cell is re-determined after the unit 503 broadcasts the second system message.

Optionally, the transmitter 503 is also used for:

Broadcasting a third system message on the second shared frequency, where the third system message includes information indicating that the priority of the second cell is higher than that of the first cell, the second direction Low-priority cell reselection conditions and the third inter-frequency measurement stop condition; the second low-priority cell reselection condition is: the cell selection signal reception level value of the second cell is less than the fifth default value and the first The difference between five offset values, the fifth default value is the default threshold value of the reselection condition to a low-priority cell; the third stop inter-frequency measurement condition is: the signal strength of the second cell is greater than the first The difference between the four default values and the sixth offset value, the fifth offset value and the sixth offset value are both greater than 0.

Wherein, the broadcasting unit 402 can be a transmitter 503, the monitoring unit 401 can be a processor 502, and the monitoring unit 401 can be embedded in or independent of the processor 502 in the form of hardware, and can also be stored in the memory 501 in the form of software, so that When the processor 502 invokes and executes the operations corresponding to the above units, the processor 502 may be a central processing unit (Central Processing Unit, referred to as CPU), a specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC) or configured to implement the present invention One or more integrated circuits of an embodiment.

Each device in the shared base station 50 provided by the embodiment of the present invention is used to execute the above method. Therefore, the beneficial effects of the shared base station 50 can be referred to the beneficial effects of the above method, which will not be repeated here.

The embodiment of the present invention also discloses a user equipment 60, as shown in FIG. 6, including:

The receiving unit 601 is configured to receive a first system message broadcast by the shared base station, where the first system message is the first load difference between the first cell and the second cell after the shared base station determines that the first load difference is greater than a first preset threshold. A system message broadcast on a shared frequency point, the first cell is a cell covered by the first shared frequency point configured in the shared base station, and the second cell is a second shared frequency point configured in the shared base station A cell covered by a frequency point, the power of the first shared frequency point is greater than the power of the second shared frequency point, the user equipment is located in a common area between the first cell and the second cell, and the The user equipment is a user equipment camped on the first cell, and the first preset threshold is greater than 0;

An executing unit 602, configured to determine according to the information included in the first system message indicating that the priority of the second cell is higher than the priority of the first cell when the user equipment is in an idle state The second cell is a high-priority cell, and if it is determined that the cell selection signal reception level of the second cell satisfies the reselection condition to a high-priority cell included in the first system message, send a request to the high-priority cell Reselection, the condition for reselection to a high priority cell is: the cell selection signal reception level value of the second cell is greater than the difference between the first default value and the first offset value, and the first default value is The default threshold value of the reselection condition to a high-priority cell, the first offset value is greater than 0; or, when the user equipment is in the connected state, if it is determined that the signal strength of the second cell satisfies the required The first condition for starting inter-frequency handover included in the first system message is used to perform cell handover, and the first condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the second default value and the second offset value difference, the second default value is a default threshold value for starting an inter-frequency handover condition, and the second offset value is greater than 0.

Optionally, the execution unit 602 is specifically configured to:

When the user equipment is in the connected state, if it is determined that the priority of the second cell is higher than the priority of the first cell, and the signal strength of the second cell satisfies the first condition for starting inter-frequency handover , to perform cell handover.

Optionally, the first system message further includes a first condition for starting inter-frequency measurement and a first condition for stopping inter-frequency measurement, and the first condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the first The sum of the three default values and the third offset value, the third default value is the default threshold value for starting the inter-frequency measurement condition; the first stop inter-frequency measurement condition is: the signal strength of the first cell is greater than The sum of the fourth default value and the fourth offset value, the fourth default value is the default threshold value for stopping the inter-frequency measurement condition, the third offset value and the fourth offset value are greater than 0, The executing unit 602 is further configured to:

When the user equipment is in the connected state, if it is determined that the signal strength of the first cell meets the first condition for starting inter-frequency measurement, start inter-frequency measurement; if it is determined that the signal strength of the first cell meets the first stop inter-frequency measurement Measurement conditions, stop inter-frequency measurement.

Optionally, the receiving unit 601 is further configured to receive a second system message broadcast by the shared base station on the first shared frequency point, the second system message determines a second load difference for the shared base station The system message broadcast when it is less than a second preset threshold, the second load difference is the load difference between the first cell and the second cell re-determined by the shared base station after broadcasting the first system message, The second system message includes information indicating that the priority of the first cell is higher than that of the second cell, the first condition for reselecting to a low-priority cell, the second condition for starting inter-frequency measurement, The second condition for starting inter-frequency handover and the second condition for stopping inter-frequency measurement; the first low-priority cell reselection condition is: the cell selection signal reception level value of the second cell is greater than the fifth default value, so The fifth default value is the default threshold value of the reselection condition to a low-priority cell; the second condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value; the second 2. The condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the second default value; the second condition for stopping inter-frequency measurement is: the signal strength of the first cell is greater than the fourth default value , the second preset threshold is smaller than the first preset threshold;

The executing unit 602 is further configured to determine that the second cell is of low priority according to information that the priority of the first cell is higher than that of the second cell when the user equipment is in an idle state cell, if it is determined that the cell selection signal reception level value of the second cell satisfies the first condition for reselecting to a low-priority cell, reselecting to a low-priority cell; or, when the user equipment is in a connected state If it is determined that the signal strength of the first cell meets the second condition for starting inter-frequency measurement and the signal strength of the second cell meets the second condition for starting inter-frequency handover, perform cell handover; if it is determined that the The signal strength of the first cell meets the second condition for stopping the inter-frequency measurement, and the inter-frequency measurement is stopped.

Each unit in the user equipment 60 provided in the embodiment of the present invention is used to execute the foregoing method. Therefore, the beneficial effects of the user equipment 60 may refer to the beneficial effects of the foregoing method, and details are not repeated here.

The embodiment of the present invention also discloses a user equipment 70 , as shown in FIG. 7 , including: a receiver 701 , a memory 702 and a processor 703 .

Wherein, the receiver 701, the memory 702 and the processor 703 are coupled together through a bus system 704, wherein the memory 702 may include a random access memory 702, and may also include a non-volatile memory 702, such as at least one disk memory 702 . The bus system 704 may be an ISA bus, a PCI bus, or an EISA bus or the like. The bus system 704 can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 7 , but it does not mean that there is only one bus or one type of bus.

The receiver 701 is configured to receive a first system message broadcast by the shared base station, where the first system message is the first system message broadcast by the shared base station after the shared base station determines that the first load difference between the first cell and the second cell is greater than a first preset threshold. A system message broadcast on a shared frequency point, the first cell is a cell covered by the first shared frequency point configured in the shared base station, and the second cell is a second shared frequency point configured in the shared base station A cell covered by a frequency point, the power of the first shared frequency point is greater than the power of the second shared frequency point, the user equipment is located in a common area between the first cell and the second cell, and the The user equipment is a user equipment camped on the first cell, and the first preset threshold is greater than 0;

The memory 702 is used to store a set of codes, and the processor 703 can perform the following actions according to the set of codes:

When the user equipment is in an idle state, determining that the second cell is based on information included in the first system message indicating that the priority of the second cell is higher than that of the first cell is For a high priority cell, if it is determined that the cell selection signal reception level value of the second cell satisfies the reselection condition to a high priority cell included in the first system message, reselect to a high priority cell, and the The high-priority cell reselection condition is: the cell selection signal reception level value of the second cell is greater than the difference between the first default value and the first offset value, and the first default value is reselection to the high-priority cell. The default threshold value of the selection condition, the first offset value is greater than 0; or, when the user equipment is in the connected state, if it is determined that the signal strength of the second cell meets the requirements included in the first system message The first condition for starting inter-frequency handover is to perform cell handover. The first condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the difference between the second default value and the second offset value, and the second The default value is a default threshold value for starting an inter-frequency handover condition, and the second offset value is greater than 0.

Optionally, the processor 703 is specifically configured to: when the user equipment is in the connected state, if it is determined that the priority of the second cell is higher than the priority of the first cell, and the signal of the second cell If the strength meets the first condition for starting inter-frequency handover, cell handover is performed.

Optionally, the first system message further includes a first condition for starting inter-frequency measurement and a first condition for stopping inter-frequency measurement, and the first condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the first The sum of the three default values and the third offset value, the third default value is the default threshold value for starting the inter-frequency measurement condition; the first stop inter-frequency measurement condition is: the signal strength of the first cell is greater than The sum of the fourth default value and the fourth offset value, the fourth default value is the default threshold value for stopping the inter-frequency measurement condition, the third offset value and the fourth offset value are greater than 0, The processor 703 is also used for:

When the user equipment is in the connected state, if it is determined that the signal strength of the first cell meets the first condition for starting inter-frequency measurement, start inter-frequency measurement; if it is determined that the signal strength of the first cell meets the first stop inter-frequency measurement Measurement conditions, stop inter-frequency measurement.

Optionally, the receiver 701 is further configured to receive a second system message broadcast by the shared base station on the first shared frequency, the second system message determines a second load difference for the shared base station The system message broadcast when it is less than a second preset threshold, the second load difference is the load difference between the first cell and the second cell re-determined by the shared base station after broadcasting the first system message, The second system message includes information indicating that the priority of the first cell is higher than that of the second cell, the first condition for reselecting to a low-priority cell, the second condition for starting inter-frequency measurement, The second condition for starting inter-frequency handover and the second condition for stopping inter-frequency measurement; the first low-priority cell reselection condition is: the cell selection signal receiving level value of the second cell is greater than the fifth default value, so The fifth default value is the default threshold value of the reselection condition to a low-priority cell; the second condition for starting inter-frequency measurement is: the signal strength of the first cell is less than the third default value; the second 2. The condition for starting inter-frequency handover is: the signal strength of the second cell is greater than the second default value; the second condition for stopping inter-frequency measurement is: the signal strength of the first cell is greater than the fourth default value , the second preset threshold is smaller than the first preset threshold;

The processor 703 is further configured to determine that the second cell is of low priority according to information that the priority of the first cell is higher than that of the second cell when the user equipment is in an idle state cell, if it is determined that the cell selection signal reception level value of the second cell satisfies the first condition for reselecting to a low-priority cell, reselecting to a low-priority cell; or, when the user equipment is in a connected state If it is determined that the signal strength of the first cell meets the second condition for starting inter-frequency measurement and the signal strength of the second cell meets the second condition for starting inter-frequency handover, perform cell handover; if it is determined that the The signal strength of the first cell meets the second condition for stopping the inter-frequency measurement, and the inter-frequency measurement is stopped.

Wherein, the receiving unit 601 can be a receiver 701, the execution unit 602 can be a processor 703, and the execution unit 602 can be embedded in or independent of the processor 703 in the form of hardware, and can also be stored in the memory 702 in the form of software, so that When the processor 703 invokes and executes the operations corresponding to the above units, the processor 703 may be a CPU, an ASIC, or one or more integrated circuits configured to implement the embodiments of the present invention.

Each device in the user equipment 70 provided in the embodiment of the present invention is used to execute the foregoing method. Therefore, for the beneficial effects of the user equipment 70, reference may be made to the beneficial effects of the foregoing method, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.

The modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or may also be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or two or more modules may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware, or in the form of hardware plus software function modules.

The above-mentioned integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc., which can store program codes. medium.

Claims (18)

1. a kind of method of balance network loads is it is characterised in that include：

The first community and the first of the second community of the second shared frequency covering that the shared frequency of sharing base monitoring first covers Load difference, wherein, the described first shared frequency and described second shared frequency are the frequency configure in described sharing base, institute The power stating the first shared frequency is more than the power of the described second shared frequency；

When described first load difference is more than the first predetermined threshold value, the broadcast the on the described first shared frequency of described sharing base One system message, it is higher than described first community that described the first system message is included for the priority representing described second community The information of priority, to high priority cell re-selection conditions and first startup alien frequencies switching condition, described to high priority cell Reselection conditions are：The cell selection signal of described second community receives the difference that level value is more than the first default value and the first bias Value, described first default value is the default threshold score to high priority cell re-selection conditions；Described first starts alien frequencies switching bar Part is：The signal strength signal intensity of described second community is more than the difference of the second default value and the second bias, and described second default value is Start the default threshold score of alien frequencies switching condition, described first predetermined threshold value, described first bias and described second bias It is all higher than 0.

2. method according to claim 1 is it is characterised in that also include the first startup alien frequencies in described the first system message Measuring condition and the first stopping different-frequency measure condition, described first starts different-frequency measure condition is：The signal of described first community Intensity be less than the 3rd default value and the 3rd bias and, described 3rd default value is the acquiescence thresholding of startup different-frequency measure condition Value；Described first stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than the 4th default value and the 4th biasing The sum of value, described 4th default value is the default threshold score stopping different-frequency measure condition, described 3rd bias and the described 4th Bias is all higher than 0.

3. method according to claim 1 and 2 is it is characterised in that share frequency in described sharing base described first After upper broadcast the first system message, methods described also includes：

If described sharing base determines that the second load difference is less than the second predetermined threshold value, described sharing base is in the described first shared frequency Second system message is broadcasted on point, it is higher than described that described second system message is included for the priority representing described first community The information of the priority of second community, first to low priority cell re-selection conditions, the second startup different-frequency measure condition, second open Dynamic alien frequencies switching condition and the second stopping different-frequency measure condition；Described first to low priority cell re-selection conditions is：Described The cell selection signal of two cells receives level value and is more than the 5th default value, and described 5th default value is to low priority cell weight Select the default threshold score of condition；Described second starts different-frequency measure condition is：The signal strength signal intensity of described first community is less than described 3rd default value；Described second starts alien frequencies switching condition is：The signal strength signal intensity of described second community is more than described second acquiescence Value；Described second stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than described 4th default value, and described the Two predetermined threshold value are less than described first predetermined threshold value, and described second load difference is that described sharing base is broadcasting described the first system The described first community redefining after message and the load difference of described second community.

4. method according to claim 3 it is characterised in that share wide on frequency in described sharing base described first After broadcasting second system message, methods described also includes：

If described sharing base determines that the 3rd load difference is more than described first predetermined threshold value, described sharing base is described first altogether Enjoy and described the first system message is re-broadcast on frequency, described 3rd load difference is that described sharing base broadcasts described second system The described first community redefining after message and the load difference of described second community.

5. the method according to any one of claim 1-4 is it is characterised in that methods described also includes：

Described sharing base broadcasts the 3rd system message on the described second shared frequency, and described 3rd system message includes using In represent described second community priority be higher than the information of the priority of described first community, second to low priority cell weight Select condition and the 3rd stopping different-frequency measure condition；Described second to low priority cell re-selection conditions is：Described second community Cell selection signal receives the difference that level value is less than the 5th default value and the 5th bias, and described 5th default value is to low excellent The default threshold score of first level cell re-selection conditions；Described 3rd stops different-frequency measure condition is：The signal of described second community is strong More than the difference of the 4th default value and the 6th bias, described 5th bias and described 6th bias are all higher than 0 to degree.

6. a kind of method of balance network loads is it is characterised in that include：

User equipment receives the first system message of sharing base broadcast, and described the first system message is described sharing base true Determine first community and the first load difference of second community shares, first, the system broadcasted on frequency more than after the first predetermined threshold value Message, described first community is the cell of the described first shared frequency covering of configuration in described sharing base, and described second is little Area is the cell of the second shared frequency covering of configuration in described sharing base, and the power of the described first shared frequency is more than described The power of the second shared frequency, described user equipment be located in described first community and the public domain of described second community and Described user equipment is the user equipment residing in described first community, and described first predetermined threshold value is more than 0；

When described user equipment is in Idle state, described user equipment according to described the first system message include for table Show higher than the information of the priority of described first community, the priority of described second community determines that described second community is high preferential Level cell, if described user equipment determines that the cell selection signal of described second community receives level value and meets described the first system Message include to high priority cell re-selection conditions, described user equipment to high priority cell reselection, described to Gao You First level cell re-selection conditions are：It is inclined with first more than the first default value that the cell selection signal of described second community receives level value Put the difference of value, described first default value is the default threshold score to high priority cell re-selection conditions, described first bias More than 0；

When described user equipment is in connected state, if described user equipment determines that the signal strength signal intensity of described second community meets institute State the first startup alien frequencies switching condition that the first system message includes, described user equipment carries out cell switching, described first Starting alien frequencies switching condition is：The signal strength signal intensity of described second community is more than the difference of the second default value and the second bias, institute Stating the second default value is the default threshold score starting alien frequencies switching condition, and described second bias is more than 0.

7. method according to claim 6 is it is characterised in that when described user equipment is in connected state, if described use Family equipment determines that the signal strength signal intensity of described second community meets the first startup alien frequencies switching that described the first system message includes Condition, described user equipment carries out cell switching, including：

When described user equipment is in connected state, if described user equipment determines that the priority of described second community is higher than described The signal strength signal intensity of the priority of first community and described second community meets described first startup alien frequencies switching condition, described use Family equipment carries out cell switching.

8. the method according to claim 6 or 7 is it is characterised in that also include the first startup in described the first system message Different-frequency measure condition and the first stopping different-frequency measure condition, described first starts different-frequency measure condition is：Described first community Signal strength signal intensity be less than the 3rd default value and the 3rd bias and, described 3rd default value is the acquiescence of startup different-frequency measure condition Threshold value；Described first stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than the 4th default value and the 4th The sum of bias, described 4th default value is the default threshold score stopping different-frequency measure condition, described 3rd bias and described 4th bias is all higher than 0, and methods described also includes：

When described user equipment is in connected state, if described user equipment determines that the signal strength signal intensity of described first community meets the One startup different-frequency measure condition, described user equipment starts different-frequency measure；If described user equipment determines described first community Signal strength signal intensity meets the first stopping different-frequency measure condition, and described user equipment stops different-frequency measure.

9. the method according to any one of claim 6-8 is it is characterised in that receive sharing base broadcast in user equipment After the first system message, methods described also includes：

Described user equipment receives the second system message of described sharing base broadcast on the described first shared frequency, and described the Two system message is the system message broadcasted when described sharing base determines that the second load difference is less than the second predetermined threshold value, described the Described first community that two load difference are described sharing base to be redefined after broadcasting described the first system message and described The load difference of second community, it is higher than described second that described second system message is included for the priority representing described first community The information of the priority of cell, first to low priority cell re-selection conditions, second start different-frequency measure condition, second start different Frequency switching condition and the second stopping different-frequency measure condition；Described first to low priority cell re-selection conditions is：Described second is little The cell selection signal in area receives level value and is more than the 5th default value, and described 5th default value is to low priority cell reselection article The default threshold score of part；Described second starts different-frequency measure condition is：The signal strength signal intensity of described first community is less than the described 3rd Default value；Described second starts alien frequencies switching condition is：The signal strength signal intensity of described second community is more than described second default value；Institute Second stopping different-frequency measure condition of stating is：The signal strength signal intensity of described first community is more than described 4th default value, and described second is pre- If threshold value is less than described first predetermined threshold value；

When described user equipment is in Idle state, described user equipment is higher than described the according to the priority of described first community The information of the priority of two cells determines that described second community is low priority cell, if described user equipment determines described second The cell selection signal of cell receives level value and meets described first to low priority cell re-selection conditions, described user equipment to Low priority cell reselection；

When described user equipment is in connected state, if described user equipment determines that the signal strength signal intensity of described first community meets institute State the second startup different-frequency measure condition and the signal strength signal intensity of described second community meet described second startup alien frequencies switching condition, Described user equipment carries out cell switching；If described user equipment determines that the signal strength signal intensity of described first community meets described second Stop different-frequency measure condition, described user equipment stops different-frequency measure.

10. a kind of sharing base is it is characterised in that include：

The second community that monitoring unit, the first community covering for the shared frequency of monitoring first and the second shared frequency cover First load difference, wherein, the described first shared frequency and described second shared frequency are the frequency configure in described sharing base Point, the power of the described first shared frequency is more than the power of the described second shared frequency；

Radio unit, for when described first load difference is more than the first predetermined threshold value, broadcasting on the described first shared frequency The first system message, it is higher than described first community that described the first system message is included for the priority representing described second community The information of priority, to high priority cell re-selection conditions and first startup alien frequencies switching condition, described little to high priority Area's reselection conditions are：The cell selection signal of described second community receives level value and is more than the first default value and the first bias Difference, described first default value is the default threshold score to high priority cell re-selection conditions；Described first starts alien frequencies switching Condition is：The signal strength signal intensity of described second community is more than the difference of the second default value and the second bias, described second default value For starting the default threshold score of alien frequencies switching condition, described first predetermined threshold value, described first bias and described second biasing Value is all higher than 0.

11. sharing base according to claim 10 open it is characterised in that also including first in described the first system message Dynamic different-frequency measure condition and the first stopping different-frequency measure condition, described first starts different-frequency measure condition is：Described first community Signal strength signal intensity be less than the 3rd default value and the 3rd bias and, described 3rd default value is writing from memory of startup different-frequency measure condition Recognize threshold value；Described first stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than the 4th default value and the The sum of four biases, described 4th default value is default threshold score, described 3rd bias and the institute stopping different-frequency measure condition State the 4th bias and be all higher than 0.

12. sharing base according to claim 10 or 11, it is characterised in that described radio unit, are additionally operable to：

When described monitoring unit determines that the second load difference is less than the second predetermined threshold value, broadcast the on the described first shared frequency Two system message, it is higher than described second community that described second system message is included for the priority representing described first community The information of priority, first to low priority cell re-selection conditions, second start different-frequency measure condition, second start alien frequencies switching Condition and the second stopping different-frequency measure condition；Described first to low priority cell re-selection conditions is：Described second community little Area's selection signal receives level value and is more than the 5th default value, and described 5th default value is silent to low priority cell re-selection conditions Recognize threshold value；Described second starts different-frequency measure condition is：The signal strength signal intensity of described first community is less than described 3rd default value； Described second starts alien frequencies switching condition is：The signal strength signal intensity of described second community is more than described second default value；Described second Stopping different-frequency measure condition is：The signal strength signal intensity of described first community is more than described 4th default value, described second predetermined threshold value Less than described first predetermined threshold value, described second load difference is that described monitoring unit is in described radio unit broadcast described first The described first community redefining after system message and the load difference of described second community.

13. sharing base according to claim 12, it is characterised in that described radio unit, are additionally operable to：

When described monitoring unit determines that the 3rd load difference is more than described first predetermined threshold value, weight on the described first shared frequency Newly broadcast described the first system message, described 3rd load difference is that described monitoring unit broadcasts described second in described radio unit The described first community redefining after system message and the load difference of described second community.

14. sharing base according to any one of claim 10-13, it is characterised in that described radio unit, are additionally operable to：

Broadcast the 3rd system message on the described second shared frequency, described 3rd system message is included for representing described the The priority of two cells is higher than the information of priority of described first community, second to low priority cell re-selection conditions and the 3rd Stop different-frequency measure condition；Described second to low priority cell re-selection conditions is：The cell selection signal of described second community Receive the difference that level value is less than the 5th default value and the 5th bias, described 5th default value is to low priority cell reselection The default threshold score of condition；Described 3rd stops different-frequency measure condition is：The signal strength signal intensity of described second community is more than the 4th and writes from memory Recognize value and the difference of the 6th bias, described 5th bias and described 6th bias are all higher than 0.

A kind of 15. user equipmenies are it is characterised in that include：

Receiving unit, for receiving the first system message of sharing base broadcast, described the first system message is described shared base Stand in and determine that the first load difference of first community and second community is broadcasted after being more than the first predetermined threshold value on the first shared frequency System message, described first community is the cell that covers of the described first shared frequency of configuration in described sharing base, described Second community is the cell of the second shared frequency covering of configuration in described sharing base, and the power of the described first shared frequency is big In the power of the described second shared frequency, described user equipment is located at the public domain of described first community and described second community In and described user equipment is the user equipment residing in described first community, described first predetermined threshold value be more than 0；

Performance element, for when described user equipment is in Idle state, according to being used for that described the first system message includes Represent higher than the information of the priority of described first community, the priority of described second community determines that described second community is Gao You First level cell is however, it is determined that the cell selection signal reception level value of described second community meets described the first system message and includes To high priority cell re-selection conditions, to high priority cell reselection, described to high priority cell re-selection conditions be：Described The cell selection signal of second community receives the difference that level value is more than the first default value and the first bias, described first acquiescence Value is the default threshold score to high priority cell re-selection conditions, and described first bias is more than 0；Or, in described use Family equipment is in during connected state however, it is determined that the signal strength signal intensity of described second community meets that described the first system message includes One startup alien frequencies switching condition, carries out cell switching, and described first startup alien frequencies switching condition is：The signal of described second community Intensity is more than the difference of the second default value and the second bias, and described second default value is the acquiescence door starting alien frequencies switching condition Limit value, described second bias is more than 0.

16. user equipmenies according to claim 15 it is characterised in that described performance element, specifically for：

When described user equipment is in connected state however, it is determined that the priority of described second community is higher than the excellent of described first community The signal strength signal intensity of first level and described second community meets described first startup alien frequencies switching condition, carries out cell switching.

17. user equipmenies according to claim 15 or 16 are it is characterised in that also include in described the first system message One starts different-frequency measure condition and the first stopping different-frequency measure condition, and described first startup different-frequency measure condition is：Described first The signal strength signal intensity of cell be less than the 3rd default value and the 3rd bias and, described 3rd default value is startup different-frequency measure condition Default threshold score；Described first stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than the 4th default value With the sum of the 4th bias, described 4th default value is the default threshold score stopping different-frequency measure condition, described 3rd bias It is all higher than 0 with described 4th bias, described performance element, it is additionally operable to：

When described user equipment is in connected state however, it is determined that the signal strength signal intensity of described first community meets first starts alien frequencies survey Amount condition, starts different-frequency measure；If it is determined that the signal strength signal intensity of described first community meets the first stopping different-frequency measure condition, stop Different-frequency measure.

18. user equipmenies according to any one of claim 15-17 it is characterised in that

Described receiving unit, is additionally operable to receive described sharing base second system of broadcast on the described first shared frequency and disappears Breath, described second system message is that described sharing base determines that the second load difference is less than the system broadcasted during the second predetermined threshold value and disappears Breath, described second load difference is described sharing base redefine after broadcasting described the first system message described first little Area and the load difference of described second community, described second system message include for the priority representing described first community be higher than The information of the priority of described second community, first to low priority cell re-selection conditions, second start different-frequency measure condition, the Two start alien frequencies switching condition and the second stopping different-frequency measure condition；Described first to low priority cell re-selection conditions is：Institute The cell selection signal stating second community receives level value more than the 5th default value, and described 5th default value is little to low priority The default threshold score of area's reselection conditions；Described second starts different-frequency measure condition is：The signal strength signal intensity of described first community is less than Described 3rd default value；Described second starts alien frequencies switching condition is：The signal strength signal intensity of described second community is more than described second Default value；Described second stops different-frequency measure condition is：The signal strength signal intensity of described first community is more than described 4th default value, institute State the second predetermined threshold value and be less than described first predetermined threshold value；

Described performance element, is additionally operable to when described user equipment is in Idle state, high according to the priority of described first community Information in the priority of described second community determines that described second community is low priority cell however, it is determined that described second community Cell selection signal receive level value meet described first to low priority cell re-selection conditions, to low priority cell weight Choosing；Or, when described user equipment is in connected state however, it is determined that the signal strength signal intensity of described first community meets described second opens The signal strength signal intensity of dynamic different-frequency measure condition and described second community meets described second startup alien frequencies switching condition, carries out cell Switching；If it is determined that the signal strength signal intensity of described first community meets described second stopping different-frequency measure condition, stop different-frequency measure.