WO2012174867A1 - 小区切换方法和系统 - Google Patents

小区切换方法和系统 Download PDF

Info

Publication number
WO2012174867A1
WO2012174867A1 PCT/CN2012/071182 CN2012071182W WO2012174867A1 WO 2012174867 A1 WO2012174867 A1 WO 2012174867A1 CN 2012071182 W CN2012071182 W CN 2012071182W WO 2012174867 A1 WO2012174867 A1 WO 2012174867A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
neighboring
allocation priority
interference band
cell
Prior art date
Application number
PCT/CN2012/071182
Other languages
English (en)
French (fr)
Inventor
王喆
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012174867A1 publication Critical patent/WO2012174867A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a cell handover method and system.
  • Switching technology is a key technology to ensure users get high quality network services during the mobile process.
  • the existing solution is as follows:
  • the mobile station (MS) listens for system messages during idle or during a call, and obtains information such as a frequency list (BA) table sent by the network side. Thereafter, the MS uses the idle frame time to find the neighbor cell information indicated in the system message, performs a synchronization channel (SCH) decoding on the frequency correction channel (FCCH) of the corresponding neighboring cell, and combines the measured neighboring cell level to pass the measurement report form.
  • SCH synchronization channel
  • FCCH frequency correction channel
  • iBSC base station controller
  • the iBSC selects the most suitable cell according to the level of the reporting section broadcast channel (BCCH) level and notifies the MS to switch.
  • the present invention provides a cell handover method and system, so as to ensure that the MS guarantees the service quality when performing cell handover, and solves the problem that the MS handover affects the user's perception.
  • a cell switching method includes: The base station controller BSC obtains a channel allocation priority threshold;
  • the BSC When the BSC needs to instruct the mobile station MS to switch from the current serving cell to the neighboring cell, the BSC queries the local channel interference band information maintained by the local area;
  • the BSC according to the interference band level and channel allocation priority relationship configuration table, the neighboring channel channel interference band information, the channel allocation priority threshold, and the neighboring cell broadcast channel BCCH level power of the current serving cell from the service In each neighboring cell of the cell, selecting the channel with the best performance is allocated to the MS;
  • the BSC instructs the MS to switch to the channel it is assigned to.
  • the step of selecting, by the BSC, the channel with the best performance from the neighboring cell of the serving cell to the MS includes:
  • the BSC acquires the interference band level and the channel allocation priority relationship configuration table, and the entry of the interference band level and the channel allocation priority relationship configuration table records the channel allocation priority value corresponding to the interference band level range, the interference band The lower the level, the higher the channel allocation priority value corresponding to the channel; the BSC determines the serving cell according to the locally maintained neighboring channel interference band information, according to the interference band level and channel allocation priority relationship configuration table.
  • the channel corresponding to each channel of each neighboring cell is assigned a priority;
  • the BSC sorts the neighboring cells of the serving cell according to the order of the BCCH level power of each neighboring cell of the serving cell from high to low;
  • the BSC allocates to the MS according to the channel allocation priority of each channel in each of the neighboring cells and each neighboring cell and the channel allocation priority threshold.
  • the step of the base station controller BSC obtaining the channel allocation priority threshold includes: receiving an indication of initiating an interference band determination, where the indication carries the channel allocation priority threshold;
  • the indication further carries a switch parameter, and the switch parameter is used to indicate that the BSC initiates the interference band determination.
  • the step of assigning, by the BSC, the channel allocation priority of each channel in each of the neighboring cells and the neighboring cells, and the channel allocation priority threshold to select the optimal channel to the MS includes:
  • Each neighboring cell of the current serving cell is sequentially referred to as a first candidate neighboring cell and a second candidate neighboring cell, and up to an Nth candidate neighboring cell;
  • the neighboring channel interference band information of each neighboring cell Determining, according to the interference band level and the channel allocation priority relationship configuration table, the neighboring channel interference band information of each neighboring cell, determining whether the channel allocation priority of the channel to be allocated to be allocated in the first candidate neighboring cell is smaller than the channel allocation priority a level threshold, if yes, selecting a channel with the highest channel allocation priority from the first candidate neighboring cell to be allocated to the MS; otherwise, repeating the foregoing operation for the second candidate neighboring cell channel until selecting the optimal performance The channel is assigned to the MS.
  • the cell handover method further includes:
  • the BSC selects a channel with the smallest channel allocation priority value from the first candidate neighboring cell to be allocated to the channel. Said MS.
  • the interference band level and channel allocation priority relationship configuration table is established and maintained by the wireless operation and maintenance center OMCR;
  • the channel allocation priority threshold is set by the OMCR.
  • the cell handover method further includes:
  • the BSC collects the neighboring channel interference band information reported by the base station BTS, and locally maintains the neighboring channel interference band information of each neighboring cell of the serving cell according to the neighboring channel interference band information, including: updating the idle neighboring channel Interfering with the band information and clearing the neighboring channel interference band information of the active channel.
  • the cell handover method further includes:
  • the BSC directly instructs the MS to switch to any channel in the cell with the highest BCCH level power.
  • a BSC includes: a receiving module, a handover decision module based on handover target channel interference band information, and a neighboring channel interference zone information maintenance module, where:
  • the receiving module is configured to: obtain a channel allocation priority threshold
  • the neighboring channel channel interference zone information maintenance module is configured to: maintain each neighboring cell of the current serving cell The neighboring cell channel interferes with the information, so that the BSC queries when the mobile station MS needs to indicate that the mobile station MS switches from the serving cell to the neighboring cell;
  • the handover decision module is configured to: configure a table according to an interference band level and a channel allocation priority relationship, the adjacent channel channel interference band information locally maintained by the BSC, the channel allocation priority threshold, and neighbors of a current serving cell
  • the area broadcast channel BCCH level power is allocated from the neighboring cells of the serving cell to the MS with the channel with the best performance, and the MS is instructed to switch to the channel allocated thereto.
  • the handover decision module is configured to select a channel with the best performance from the neighboring cells of the serving cell to allocate to the MS according to the following manner:
  • the entry of the interference band level and the channel allocation priority relationship configuration table records the channel allocation priority value corresponding to the interference band level range, and the interference band level is lower. The higher the channel assignment priority value corresponding to the channel;
  • the receiving module is configured to obtain the channel allocation priority threshold according to the following manner: receiving an indication of initiating an interference band determination, where the indication carries the channel allocation priority threshold; the BSC further includes an interference band determination Start the module, where:
  • the indication further carries a switch parameter, where the switch parameter is used to indicate that the BSC initiates an interference band determination
  • the interference band determination initiation module is configured to: initiate an interference band determination according to the switch parameter.
  • the handover decision module is configured to allocate, according to the following manner, the channel allocation priority of each channel of each neighboring cell and each neighboring cell and the channel allocation priority threshold to select the channel with the best performance to allocate to the MS. :
  • Each neighboring cell of the current serving cell is sequentially referred to as a first candidate neighboring cell and a second candidate neighboring cell, and up to an Nth candidate neighboring cell;
  • the neighboring channel interference band information of each neighboring cell Determining, according to the interference band level and the channel allocation priority relationship configuration table, the neighboring channel interference band information of each neighboring cell, determining whether the channel allocation priority of the channel to be allocated to be allocated in the first candidate neighboring cell is smaller than the channel allocation priority a level threshold, if yes, selecting a channel with the highest channel allocation priority from the first candidate neighboring cell to be allocated to the MS; otherwise, repeating the foregoing operation for the second candidate neighboring cell channel until selecting the optimal performance The channel is assigned to the MS.
  • the handover decision module is further configured to:
  • a channel with the smallest channel allocation priority value selected from the first candidate neighboring cells is allocated to the MS.
  • the neighboring channel interference zone information maintenance module is further configured to:
  • the neighboring channel interference band information reported by the base station BTS is collected, and the neighboring channel interference band information of each neighboring cell of the serving cell is locally maintained according to the neighboring channel interference band information, including:
  • the idle neighboring channel interference band information is updated and the neighboring channel interference band information of the active channel is cleared.
  • the handover decision module is further configured to:
  • the MS When the MS needs to perform a salvage handover, the MS is directly instructed to switch to any channel in the cell with the highest BCCH level power.
  • An OMCR adds an interference band handover decision maintenance module, where the interference band handover decision maintenance module includes a relationship configuration table processing module and a channel allocation priority threshold processing module, where:
  • the relationship configuration table processing module is configured to: establish and maintain an interference band level and channel allocation priority relationship configuration table
  • the channel allocation priority threshold processing module is configured to: set a channel allocation priority threshold and send it to the base station controller BSC.
  • the channel allocation priority threshold processing module is configured to set the channel allocation priority threshold according to the following manner: setting the channel according to the current serving cell and each neighboring cell radio quality Priority threshold;
  • the channel allocation priority threshold processing module is configured to send the channel allocation priority threshold to the BSC according to the following manner: sending an indication to the BSC to initiate an interference band determination, where the indication carries the channel allocation priority Threshold.
  • the indicator further carries a switch parameter, where the switch parameter is used to indicate that the BSC initiates an interference band determination.
  • a switching system comprising: any of the BSCs described above and any of the OMCRs described above.
  • the BSC when the BSC needs to instruct the MS to switch from the current serving cell to the neighboring cell, the BSC queries the locally maintained neighboring channel channel interference band information, and configures the table according to the interference band level and the channel allocation priority relationship, and the neighboring channel that is locally maintained by the BSC.
  • the interference band information, the channel allocation priority threshold, and the neighboring cell broadcast channel BCCH level power of the current serving cell are selected from the neighboring cells of the serving cell, and the channel with the best performance is allocated to the MS, and then the The MS switches to the channel allocated to the MS, and fully considers the channel interference when indicating the MS handover, and implements the MS cell handover under the premise of ensuring the quality of the service, and solves the problem that the MS handover affects the user's perception.
  • FIG. 1 is a flowchart of a cell handover method according to Embodiment 1 of the present invention
  • step 104 in FIG. 1 is a specific implementation flowchart of step 104 in FIG. 1;
  • FIG. 3 is a block diagram showing a modular structure of a cell switching system according to Embodiment 2 of the present invention
  • FIG. 4 is a flow chart of performing handover in the cell switching system shown in FIG. 3 according to Embodiment 2 of the present invention.
  • the area information is only the BCCH frequency level power information of the area, and there is no TCH interference situation information, and the interference situation of the handover target TCH allocated to the MS is ignored.
  • the coverage of each frequency reuse cluster is getting smaller and smaller, and the frequency configuration of adjacent intervals is the same frequency phenomenon.
  • the MS is cut into a cell with better coverage, it is likely that the MS that is allocated to the MS has a large interference, causing the MS to frequently switch or even drop the call.
  • the embodiment of the invention provides a cell handover method, which is based on the handover target channel interference band information, avoids the problem of the handover target channel in which the mobile phone cuts into interference, and effectively improves the rationality and accuracy of the handover decision, and reduces the degree to a certain extent.
  • the number of handovers and the number of dropped calls are switched, the handover success rate is improved, and the user perception is improved.
  • the base station controller according to the embodiment of the present invention may be an iBSC or a BSC, and the principle of using the cell handover method provided by the embodiment of the present invention is the same for the iBSC or the BSC, so the embodiment of the present invention only uses the BSC as an example. Be explained.
  • the process of completing the handover by using the cell handover method is as shown in FIG. 1, and includes the following steps:
  • Step 101 Establish and maintain an interference band level and channel allocation priority relationship configuration table through the Wireless Operation and Maintenance Center (OMCR), and set a channel allocation priority threshold according to the serving cell and the neighboring area radio quality;
  • OMCR Wireless Operation and Maintenance Center
  • the OMCR maintains the interference band handover decision parameter information according to the network plan, and stores the interference band level and channel allocation priority relationship configuration table (for example, setting the interference band level 2 or lower to the channel allocation high priority level)
  • the entry of the interference band level and the channel allocation priority relationship configuration table records the channel allocation priority corresponding to the interference band level range.
  • the channel may be assigned a priority threshold according to the radio quality of the serving cell and the neighboring cell. For example, when the radio quality is good, the channel is allocated.
  • the priority threshold is set higher (for example, only high priority channels are assigned).
  • the function of this step can be implemented by adding an interference band switching decision maintenance module to the OMCR.
  • Step 102 The BSC receives an indication of initiating an interference band decision sent by the OMCR, where the indication carries a channel allocation priority threshold.
  • the OMCR is configured to enable or disable the switch according to the interference band decision.
  • the OMCR sends an indication to the BSC to start the interference band determination, where the indication carries the channel allocation priority threshold and is enabled.
  • Interference band decision parameters Preferably, the OMCR does not issue a switch parameter every time the switch is switched, and can be sent when the site neighbor is created or modified.
  • the foregoing indication may be a site parameter configuration message
  • a switch parameter field may be added to the site parameter configuration message sent by the OMCR to the BSC, and the switch parameter is filled in the field to instruct the BSC to start the cell handover according to the interference band decision. Process.
  • the BSC updates the interference band information on the BTS to each neighboring area data table in real time according to the neighboring area configuration data.
  • the neighboring channel interference band information maintenance module is added to the BSC to implement the function of the interference band information maintenance.
  • a handover decision module based on the handover target channel interference band information may be added to the BSC.
  • the handover decision module based on the handover target channel interference band information determines the allocation target according to the real-time updated interference band data. channel.
  • the BSC detects whether the handover cause is a salvage handover. If the interference band information decision detection flow is skipped for the salvage handover, the handover is completed according to the handover procedure in the prior art; otherwise, the interference band information determination detection process is performed, and the handover is performed. Step 103.
  • a handover decision module based on handover target channel interference band information may be added to the BSC to implement a handover decision function.
  • Step 103 When the BSC needs to instruct the MS to switch from the current serving cell to the neighboring cell, the BSC queries the local area channel interference band information maintained by the local area;
  • the BSC maintains the neighboring channel interference band information according to the network plan.
  • the neighboring channel interference can be implemented by adding a neighboring channel interference band information maintenance module in the BSC. Information-enabled features.
  • the method for maintaining the channel interference band information in the neighboring cell includes: after the channel is activated, the interference band information of the channel maintained by the BSC is cleared; for the idle channel, the corresponding interference band information is periodically updated locally in the BSC, and the update period is based on the interference band of the base station. Report cycle adjustment.
  • Step 104 The BSC is configured according to the interference band level and the channel allocation priority relationship configuration table, the locally maintained neighboring channel channel interference band information, the information carried in the indication sent by the OMCR, and each neighboring cell of the current serving cell.
  • BCCH level power is selected from the channels of each neighboring cell of the current serving cell, and the channel with the best performance is allocated to the MS;
  • Step 104 is as shown in FIG. 2, including step 1041 - step 1044:
  • Step 1041 The BSC obtains an interference band level and a channel allocation priority relationship configuration table from the OMCR, where an entry of the interference band level and the channel allocation priority relationship configuration table records a channel allocation priority corresponding to an interference band level range. The value of the channel, the higher the channel allocation priority value corresponding to the channel with lower interference level;
  • Step 1042 The BSC determines a channel allocation priority corresponding to each channel of each neighboring cell of the current serving cell according to the neighboring channel interference band information that is locally maintained, and the interference band level and channel allocation priority relationship configuration table.
  • the channel allocation priority is adjusted in combination with the interference band level and channel allocation priority relationship configuration table on the OMCR.
  • Step 1043 The BSC sorts each neighboring cell of the serving cell according to a sequence of BCCH level power of each neighboring cell of the serving cell from high to low.
  • Step 1044 The BSC allocates the channel with the best performance according to the channel allocation priority of each of the neighboring cells and the adjacent channels and the channel allocation priority threshold to the MS; Excellent means: taking into account the coverage and strength of the handover target cell and the cleanliness of the target cell channel. Because the BCCH level power directly reflects the coverage and strength of the cell, it is the primary basis for handover, and the interference band level corresponding to the channel allocation priority is a correction to the cleanness of the channel of the handover target cell, according to each neighboring cell of the current serving cell. Selecting the channel with the highest priority in the order of BCCH level power from high to low makes the overall performance of the two indicators of the coverage target cell coverage and strength and the cleanness of the target cell channel optimal.
  • the channel with a lower interference band level can be selected for allocation to the MS according to the channel allocation priority.
  • the best neighboring cell and channel are selected from multiple neighboring cells by using a loop screening method, as follows:
  • the BSC sequentially checks whether there is a channel in each neighboring cell whose channel allocation priority is lower than the channel allocation priority threshold;
  • a channel with the smallest channel allocation priority value selected from the neighboring cell is allocated to the MS.
  • the neighboring cells are sequentially referred to as the first candidate neighboring cell and the second candidate neighboring cell Nth neighboring neighboring cell according to the ordering order.
  • Step 105 The BSC instructs the MS to switch to a channel allocated thereto.
  • the embodiment of the present invention provides a cell handover method.
  • the BSC needs to instruct the MS to switch from the current serving cell to the neighboring cell
  • the BSC queries the locally maintained neighboring channel interference band information, and selects from the neighboring cells of the serving cell.
  • a channel with a lower level of the interference band is allocated to the MS, and then the MS is instructed to switch to the channel allocated thereto, and the channel interference is fully considered when the MS is instructed to be switched, and the MS cell handover under the premise of ensuring the quality of the service is implemented. Solved the problem that MS switching affects user perception.
  • the handover decision process is optimized, so that the BSC can actively identify the channel interference of the handover target cell, and prevent the handover to the adjacent channel with poor interference quality, which can effectively improve the network service. Quality, improve user perception.
  • the embodiment of the present invention provides a cell handover system based on an interference band level, including a BSC.
  • the BSC is configured to: query the locally maintained neighboring channel interference band information when the MS needs to be instructed to switch from the current serving cell to the neighboring cell. And selecting, from each neighboring cell of the serving cell, a channel with a lower interference band level to allocate to the MS, and instructing the MS to switch to a channel allocated thereto.
  • the system further comprises an OMCR
  • the OMCR is configured to: establish and maintain an interference band level and channel allocation priority relationship configuration table, and set a channel allocation priority threshold according to the serving cell and the neighboring area radio quality, and send a start interference band determination to the BSC. Instructing, the indication carries a channel allocation priority threshold; the BSC is further configured to: obtain an interference band level and channel allocation priority relationship configuration table from the OMCR, and configure the interference band level and channel allocation priority relationship The table entry records the channel allocation priority value corresponding to the interference band level range, and the lower the interference band level, the higher the channel allocation priority value corresponding to the channel.
  • the cell switching system provided by the embodiment of the present invention may be modularized, and the module is integrated into the OMCR and the BSC to perform the corresponding functions.
  • the modular cell handover system structure is as shown in FIG. 3.
  • the OMCR adds an interference band handover decision maintenance module, and the interference band handover decision maintenance module maintains the interference band handover decision parameter information according to the network plan.
  • the interference band level and channel allocation priority relationship configuration table is included.
  • the optimal implementation recommends that the channel allocation priority be set to level 5 (level 1 can represent the best) and the channel allocation priority threshold.
  • the optimal implementation recommends setting the threshold to 3.
  • the BSC adds a neighboring channel interference zone information maintenance module.
  • the neighboring channel interference zone information maintenance module maintains the neighboring channel interference zone information according to the network plan.
  • the BSC needs to add a handover decision module based on the handover target channel interference band information, and the handover decision module based on the handover target channel interference band information receives the interference band data reported by the base station, and determines the MS handover according to the neighboring channel interference band information. Target channel.
  • Figure 4 is a flow chart showing the handover process of the handover decision module based on the handover target channel interference band information, including the following steps:
  • Step 401 After receiving the MS measurement report, and performing the current neighbor selection and sorting, the BSC detects whether the handover reason is a salvage handover, and if yes, transfers to the existing cell handover procedure; otherwise, Go to step 402.
  • Step 402 Determine whether the currently checked neighboring cell is the last neighboring cell that is sequentially arranged; if yes, go to step 405; otherwise, go to step 403.
  • Step 403 According to the neighboring channel interference band information maintained by the neighboring channel channel interference information maintenance module, compare the interference band level and channel allocation priority relationship configuration table obtained by the interference band handover decision maintenance module, and determine the neighboring area currently checked. Whether the channel allocation priority of the hand-in channel to be allocated is smaller than the channel allocation priority threshold. If yes, go to step 404; otherwise, go to step 402, repeat the above decision for the channel of the next neighboring cell, and so on;
  • Step 404 Select a channel with the highest priority from the currently checked neighboring cells to perform handover allocation.
  • Step 405 If there is no channel allocation priority of the candidate channel to be allocated in all the candidate neighboring cells, the channel with the highest priority is selected from the first candidate neighboring cell for handover allocation.
  • a cell switching method includes:
  • the base station controller BSC obtains a channel allocation priority threshold
  • the BSC When the BSC needs to instruct the mobile station MS to switch from the current serving cell to the neighboring cell, the BSC queries the local channel interference band information maintained by the local area;
  • the BSC according to the interference band level and channel allocation priority relationship configuration table, the neighboring channel channel interference band information, the channel allocation priority threshold, and the neighboring cell broadcast channel BCCH level power of the current serving cell from the service In each neighboring cell of the cell, selecting the channel with the best performance is allocated to the MS;
  • the BSC instructs the MS to switch to the channel it is assigned to.
  • the step of selecting, by the BSC, the channel with the best performance from the neighboring cell of the serving cell to the MS includes:
  • the BSC acquires the interference band level and the channel allocation priority relationship configuration table, and the entry of the interference band level and the channel allocation priority relationship configuration table records the channel allocation priority value corresponding to the interference band level range, the interference band The lower the level, the higher the channel allocation priority value corresponding to the channel;
  • the BSC determines a channel allocation priority corresponding to each channel of each neighboring cell of the serving cell according to the neighboring channel interference band information that is locally maintained, and the interference band level and channel allocation priority relationship configuration table;
  • the BSC sorts the neighboring cells of the serving cell according to the order of the BCCH level power of each neighboring cell of the serving cell from high to low;
  • the BSC allocates to the MS according to the channel allocation priority of each channel in each of the neighboring cells and each neighboring cell and the channel allocation priority threshold.
  • the step of the base station controller BSC obtaining the channel allocation priority threshold includes: receiving an indication of initiating an interference band determination, where the indication carries the channel allocation priority threshold;
  • the indication further carries a switch parameter, and the switch parameter is used to indicate that the BSC initiates the interference band determination.
  • the step of assigning, by the BSC, the channel allocation priority of each channel in each neighboring cell and each neighboring cell and the channel allocation priority threshold to select the best performing channel to the MS includes:
  • Each neighboring cell of the current serving cell is sequentially referred to as a first candidate neighboring cell, a second candidate neighboring cell, and an Nth candidate neighboring cell according to the sorting order;
  • the neighboring channel interference band information of each neighboring cell Determining, according to the interference band level and the channel allocation priority relationship configuration table, the neighboring channel interference band information of each neighboring cell, determining whether the channel allocation priority of the channel to be allocated to be allocated in the first candidate neighboring cell is smaller than the channel allocation priority a level threshold, if yes, selecting a channel with the highest channel allocation priority from the first candidate neighboring cell to be allocated to the MS; otherwise, repeating the foregoing operation for the second candidate neighboring cell channel until selecting the optimal performance The channel is assigned to the MS.
  • the cell handover method further includes:
  • the BSC selects a channel with the smallest channel allocation priority value from the first candidate neighboring cell to be allocated to the channel. Said MS.
  • the interference band level and channel allocation priority relationship configuration table is determined by the wireless operation and maintenance center Established and maintained by OMCR;
  • the channel allocation priority threshold is set by the OMCR.
  • the cell handover method further includes:
  • the BSC collects the neighboring channel interference band information reported by the base station BTS, and locally maintains the neighboring channel interference band information of each neighboring cell of the serving cell according to the neighboring channel interference band information, including: updating the idle neighboring channel Interfering with the band information and clearing the neighboring channel interference band information of the active channel.
  • the cell handover method further includes:
  • the BSC directly instructs the MS to switch to any channel in the cell with the highest BCCH level power.
  • a BSC includes: a receiving module, a handover decision module based on handover target channel interference band information, and a neighboring channel interference zone information maintenance module, where:
  • the receiving module is configured to: obtain a channel allocation priority threshold
  • the neighboring channel interference band information maintenance module is configured to: maintain neighboring channel interference band information of each neighboring cell of the current serving cell, where the BSC needs to indicate that the mobile station MS switches from the serving cell to the neighboring cell when it needs to indicate Inquire;
  • the handover decision module is configured to: configure a table according to an interference band level and a channel allocation priority relationship, the adjacent channel channel interference band information locally maintained by the BSC, the channel allocation priority threshold, and neighbors of a current serving cell
  • the area broadcast channel BCCH level power is allocated from the neighboring cells of the serving cell to the MS with the channel with the best performance, and the MS is instructed to switch to the channel allocated thereto.
  • the handover decision module is configured to select a channel with the best performance from the neighboring cells of the serving cell to allocate to the MS according to the following manner:
  • the entry of the interference band level and the channel allocation priority relationship configuration table records the channel allocation priority value corresponding to the interference band level range, and the interference band level is lower. The higher the channel assignment priority value corresponding to the channel;
  • the interference band level and channel allocation are compared a priority relationship configuration table, which determines a channel allocation priority corresponding to each channel of each neighboring cell of the serving cell;
  • the receiving module is configured to obtain the channel allocation priority threshold according to the following manner: receiving an indication of initiating an interference band determination, where the indication carries the channel allocation priority threshold; the BSC further includes an interference band determination Start the module, where:
  • the indication further carries a switch parameter, where the switch parameter is used to indicate that the BSC initiates an interference band determination
  • the interference band determination initiation module is configured to: initiate an interference band determination according to the switch parameter.
  • the handover decision module is configured to allocate, according to the following manner, the channel allocation priority of each channel of each neighboring cell and each neighboring cell and the channel allocation priority threshold to select the channel with the best performance to allocate to the MS. :
  • Each neighboring cell of the current serving cell is sequentially referred to as a first candidate neighboring cell, a second candidate neighboring cell, and an Nth candidate neighboring cell according to the sorting order;
  • the neighboring channel interference band information of each neighboring cell Determining, according to the interference band level and the channel allocation priority relationship configuration table, the neighboring channel interference band information of each neighboring cell, determining whether the channel allocation priority of the channel to be allocated to be allocated in the first candidate neighboring cell is smaller than the channel allocation priority a level threshold, if yes, selecting a channel with the highest channel allocation priority from the first candidate neighboring cell to be allocated to the MS; otherwise, repeating the foregoing operation for the second candidate neighboring cell channel until selecting the optimal performance The channel is assigned to the MS.
  • the handover decision module is further configured to:
  • a channel with the smallest channel allocation priority value selected from the first candidate neighboring cells is allocated to the MS.
  • the neighboring channel interference zone information maintenance module is further configured to: The neighboring channel interference band information reported by the base station BTS is collected, and the neighboring channel interference band information of each neighboring cell of the serving cell is locally maintained according to the neighboring channel interference band information, including:
  • the idle neighboring channel interference band information is updated and the neighboring channel interference band information of the active channel is cleared.
  • the handover decision module is further configured to:
  • the MS When the MS needs to perform a salvage handover, the MS is directly instructed to switch to any channel in the cell with the highest BCCH level power.
  • An OMCR adds an interference band handover decision maintenance module, where the interference band handover decision maintenance module includes a relationship configuration table processing module and a channel allocation priority threshold processing module, where:
  • the relationship configuration table processing module is configured to: establish and maintain an interference band level and channel allocation priority relationship configuration table
  • the channel allocation priority threshold processing module is configured to: set a channel allocation priority threshold and send it to the base station controller BSC.
  • the channel allocation priority threshold processing module is configured to set the channel allocation priority threshold according to the following manner: setting the channel allocation priority threshold according to the current serving cell and each neighboring cell radio quality;
  • the channel allocation priority threshold processing module is configured to send the channel allocation priority threshold to the BSC according to the following manner: sending an indication to the BSC to initiate an interference band determination, where the indication carries the channel allocation priority Threshold.
  • the indicator further carries a switch parameter, where the switch parameter is used to indicate that the BSC initiates an interference band determination.
  • a switching system comprising: any of the BSCs described above and any of the OMCRs described above.
  • the cell handover system provided by the embodiment of the present invention can be combined with a cell handover method provided by the embodiment of the present invention.
  • the BSC needs to instruct the MS to switch from the current serving cell to the neighboring cell
  • the BSC queries the locally maintained neighbor cell channel.
  • Interference band information from the neighboring areas of the service cell, select dry A channel with a lower scrambling level is allocated to the MS, and then the MS is instructed to switch to the channel allocated thereto, and the channel interference is fully considered when indicating the MS handover, and the MS cell handover under the premise of ensuring the quality of the service is implemented. Solved the problem that MS switching affects user perception.
  • all or part of the steps of the foregoing embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the invention is not limited to any particular combination of hardware and software.
  • the various devices/function modules/functional units in the above embodiments may be implemented using a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • Each device/function module/functional unit in the above embodiments can be stored in a computer readable storage medium when implemented in the form of a software function module and sold or used as a standalone product.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the BSC when the BSC needs to instruct the MS to switch from the current serving cell to the neighboring cell, the BSC queries the locally maintained neighboring channel channel interference band information, and configures the table according to the interference band level and the channel allocation priority relationship, and the neighboring channel that is locally maintained by the BSC.
  • the interference band information, the channel allocation priority threshold, and the neighboring cell broadcast channel BCCH level power of the current serving cell are selected from the neighboring cells of the serving cell, and the channel with the best performance is allocated to the MS, and then the MS performs the channel assigned to it
  • the handover which fully considers the channel interference when instructing the MS handover, implements the MS cell handover under the premise of ensuring the quality of the service, and solves the problem that the MS handover affects the user perception. Therefore, the present invention has industrial applicability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

一种小区切换方法、一种基站控制器BSC和一种无线操作维护中心OMCR，该方法包括：所述BSC获得信道分配优先级门限；所述BSC在需要指示移动台MS从当前服务小区向邻区切换时，查询本地维护的邻区信道干扰带信息；所述BSC根据干扰带级别与信道分配优先级关系配置表、所述邻区信道干扰带信息、所述信道分配优先级门限和当前服务小区的各邻区广播信道BCCH电平功率从所述服务小区的各邻区中，选择性能最优的信道分配给所述MS；所述BSC指示所述MS向为其分配的信道进行切换。采用上述技术方案后，在指示MS切换时充分考虑了信道干扰，实现了保证业务质量前提下的MS小区切换，解决了MS切换影响用户感知度的问题。

Description

小区切换方法和系统
技术领域
本发明涉及移动通信领域， 尤其涉及一种小区切换方法和系统。
背景技术
移动通信系统的一个最大特点， 就是用户可以在移动中获得正常的网络 服务。 而切换技术是保证用户在移动过程中获得高质量网络服务的一项关键 技术。
现有方案是： 移动台 （MS )在空闲或者通话过程中监听系统消息， 获取 网络侧下发的频率列表（BA )表等信息。 此后， MS利用空闲帧时刻寻找系 统消息中指示的邻小区信息， 对相应邻区的频率修正信道（FCCH )进行同步 信道（SCH )解码， 并结合测量出的邻区电平通过测量报告的形式上报给基 站控制器（iBSC或 BSC ) 。 iBSC根据上报部区广播信道（BCCH )电平强弱 排序选出最合适小区并通知 MS进行切换。
然而， 无论是网络侧下发的邻区频点信息， 还是 MS利用空闲帧时刻搜 索的邻区信息， 均仅是部区 BCCH频点电平功率信息。 在频率复用越来越紧 密的现状下， 每个频率复用簇的区域覆盖范围越来越小， 邻区间的频率配置 为同频的现象更是时有发生。 无法避免的是， 在当前切换方法模式下， 虽然 使 MS切入了一个覆盖更好的小区， 但很有可能由于分配给 MS的邻区业务 信道（TCH )存在较大的干扰， 引起 MS发生频繁切换甚至掉话， 从而严重 影响用户感知度。 发明内容
本发明将提供一种小区切换方法和系统， 以实现 MS在进行小区切换时 保证业务质量， 解决 MS切换影响用户感知度的问题。
本发明釆用如下技术方案：
一种小区切换方法， 包括： 基站控制器 BSC获得信道分配优先级门限；
所述 BSC在需要指示移动台 MS从当前服务小区向邻区切换时， 查询本 地维护的邻区信道干扰带信息；
所述 BSC根据干扰带级别与信道分配优先级关系配置表、所述邻区信道 干扰带信息、 所述信道分配优先级门限和当前服务小区的各邻区广播信道 BCCH 电平功率从所述服务小区的各邻区中， 选择性能最优的信道分配给所 述 MS;
所述 BSC指示所述 MS向为其分配的信道进行切换。
其中， 所述 BSC从所述服务小区的各邻区中， 选择性能最优的信道分配 给所述 MS的步骤包括：
所述 BSC获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰 带级别与信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信 道分配优先级值， 干扰带级别越低的信道对应的信道分配优先级值越高； 所述 BSC根据本地维护的邻区信道干扰带信息，对照所述干扰带级别与 信道分配优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信 道分配优先级；
所述 BSC按所述服务小区的各邻区 BCCH电平功率由高到低的顺序，对 所述服务小区的各邻区进行排序；
所述 BSC根据排序好的各邻区、各邻区的各信道的信道分配优先级及所 述信道分配优先级门限选择性能最优的信道分配给所述 MS。
其中： 基站控制器 BSC获得信道分配优先级门限的步骤包括： 接收启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门 限；
所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定。
其中， 所述 BSC根据排序好的各邻区、 各邻区的各信道的信道分配优先 级及所述信道分配优先级门限选择性能最优的信道分配给所述 MS的步骤包 括： 按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
该小区切换方法还包括：
当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 所述 BSC从所述第一候选邻区中选择信道分配优先级值最小的 信道分配给所述 MS。
其中： 所述根据服务小区和其邻区无线质量设置的；
所述干扰带级别与信道分配优先级关系配置表是由无线操作维护中心 OMCR建立和维护的；
所述信道分配优先级门限是由所述 OMCR设置的。
该小区切换方法还包括：
所述 BSC收集基站 BTS上报的邻区信道干扰带信息，根据该邻区信道干 扰带信息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括： 更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
该小区切换方法还包括：
在所述 MS需要进行挽救性切换时，所述 BSC直接指示所述 MS向 BCCH 电平功率最高的小区中的任一信道进行切换。
一种 BSC, 包括： 接收模块、 基于切换目标信道干扰带信息的切换判决 模块和邻区信道干扰带信息维护模块， 其中：
所述接收模块设置成： 获得信道分配优先级门限；
所述邻区信道干扰带信息维护模块设置成： 维护当前服务小区的各邻区 的邻区信道干扰带信息， 以供所述 BSC在需要指示移动台 MS从所述服务小 区向邻区切换时查询；
所述切换判决模块设置成： 根据干扰带级别与信道分配优先级关系配置 表、 所述 BSC本地维护的所述邻区信道干扰带信息、 所述信道分配优先级门 限和当前服务小区的各邻区广播信道 BCCH电平功率从所述服务小区的各邻 区中，选择性能最优的信道分配给所述 MS, 并指示所述 MS向为其分配的信 道进行切换。
其中， 所述切换判决模块设置成按照以下方式从所述服务小区的各邻区 中， 选择性能最优的信道分配给所述 MS:
获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰带级别与 信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信道分配优 先级值， 干扰带级别越低的信道对应的信道分配优先级值越高；
根据本地维护的邻区信道干扰带信息， 对照所述干扰带级别与信道分配 优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信道分配优 先级；
按所述服务小区的各邻区 BCCH电平功率由高到低的顺序， 对所述服务 小区的各邻区进行排序；
根据排序好的各邻区、 各邻区的各信道的信道分配优先级及所述信道分 配优先级门限选择性能最优的信道分配给所述 MS。
其中：所述接收模块设置成按照以下方式获得所述信道分配优先级门限： 接收启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门限； 所述 BSC还包括干扰带判定启动模块， 其中：
所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定；
所述干扰带判定启动模块设置成： 根据所述开关参数启动干扰带判定。 其中， 所述切换判决模块设置成按照以下方式根据排序好的各邻区、 各 邻区的各信道的信道分配优先级及所述信道分配优先级门限选择性能最优的 信道分配给所述 MS: 按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
其中， 所述切换判决模块还设置成：
当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 从所述第一候选邻区中选择信道分配优先级值最小的信道分配 给所述 MS。
其中， 所述邻区信道干扰带信息维护模块还设置成：
收集基站 BTS上报的邻区信道干扰带信息， 根据所述邻区信道干扰带信 息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括：
更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
其中， 所述切换判决模块还设置成：
在所述 MS需要进行挽救性切换时， 直接指示所述 MS向 BCCH电平功 率最高的小区中的任一信道进行切换。
一种 OMCR,所述 OMCR增加干扰带切换判决维护模块，所述干扰带切 换判决维护模块包括关系配置表处理模块和信道分配优先级门限处理模块， 其中：
所述关系配置表处理模块设置成： 建立并维护干扰带级别与信道分配优 先级关系配置表；
所述信道分配优先级门限处理模块设置成： 设置信道分配优先级门限并 将其下发给基站控制器 BSC。
其中： 所述信道分配优先级门限处理模块设置成按照以下方式设置所述 信道分配优先级门限： 根据当前服务小区和各邻区无线质量设置所述信道分 配优先级门限；
所述信道分配优先级门限处理模块设置成按照以下方式将所述信道分配 优先级门限下发给 BSC: 向 BSC下发启动干扰带判定的指示， 在所述指示中 携带所述信道分配优先级门限。
其中： 所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC 启动干扰带判定。
一种切换系统， 包括： 如上所述的任意一种 BSC和如上所述的任意一种 OMCR。
上述技术方案， BSC在需要指示 MS从当前服务小区向邻区切换时， 查 询本地维护的邻区信道干扰带信息， 根据干扰带级别与信道分配优先级关系 配置表、 BSC本地维护的邻区信道干扰带信息、 信道分配优先级门限和当前 服务小区的各邻区广播信道 BCCH电平功率从所述服务小区的各邻区中， 选 择性能最优的信道分配给所述 MS,然后指示所述 MS向为其分配的信道进行 切换， 在指示 MS切换时充分考虑了信道干扰， 实现了保证业务质量前提下 的 MS小区切换， 解决了 MS切换影响用户感知度的问题。
附图概述
图 1为本发明的实施例一提供的一种小区切换方法的流程图；
图 2为图 1中步骤 104的具体实现流程图；
图 3为本发明的实施例二提供的一种小区切换系统模块化的结构框图； 图 4为本发明的实施例二中结合图 3所示的小区切换系统完成切换的流 程图。
本发明的较佳实施方式
无论是网络侧下发的邻区频点信息， 还是 MS利用空闲帧时刻搜索的邻 区信息， 均仅是部区 BCCH频点电平功率信息， 没有 TCH干扰情况信息， 忽 略了分配给 MS的切换目标 TCH的干扰情况。 与此同时， 在频率复用越来越 紧密现状下， 每个频率复用簇的区域覆盖范围越来越小， 邻区间的频率配置 为同频的现象更是时有发生。 无法避免的是， 在当前切换方法模式下， 虽然 使 MS切入了一个覆盖更好的小区， 但很有可能由于分配给 MS的 TCH存在 较大的干扰， 引起 MS发生频繁切换甚至掉话， 从而严重影响用户感知度。
为了解决上述问题， 本发明的实施例提供了一种小区切换方法和系统。 下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是， 在不冲 突的情况下， 本申请中的实施例及实施例中的特征可以相互任意组合。 这些 组合均在本发明的保护范围内。
首先结合附图， 对本发明的实施例一进行说明。
本发明实施例提供了一种小区切换方法，基于切换目标信道干扰带信息， 规避了分配手机切入存在干扰的切换目标信道问题， 有效提升了切换判决的 合理性和准确性， 在一定程度上降低了切换次数及切换掉话次数， 提高了切 换成功率等， 改善了用户感知度。
本发明实施例所涉及的基站控制器可为 iBSC或 BSC, 无论是 iBSC或 BSC, 使用本发明实施例所提供的小区切换方法完成切换的原理都相同， 故 本发明实施例仅以 BSC为例进行说明。使用该小区切换方法完成切换的流程 如图 1所示， 包括以下步骤：
步骤 101、 通过无线操作维护中心 （OMCR )建立并维护干扰带级别与 信道分配优先级关系配置表， 并根据服务小区和邻区无线质量， 设置信道分 配优先级门限；
本发明实施例中，所述 OMCR根据网络规划维护基于干扰带切换判决参 数信息， 存储于干扰带级别与信道分配优先级关系配置表（如将干扰带 2级 以下设定为信道分配高优先级， 2级至 4级设置为中等优先级， 4级以上设置 为低优先级） 中， 所述干扰带级别与信道分配优先级关系配置表的表项记录 了干扰带级别范围对应的信道分配优先级值， 干扰带级别越低的信道对应的 信道分配优先级值越高。 优选的， 为了高效的从多个邻区中筛选出合适的邻区和信道， 还可以根 据服务小区和邻区无线质量设置信道分配优先级门限， 例如， 在无线质量较 好时， 将信道分配优先级门限设置得较高 （如只分配高优先级的信道） 。
优选的，本步骤功能可通过在 OMCR中增加设置干扰带切换判决维护模 块来实现。
步骤 102、 BSC接收所述 OMCR下发的启动干扰带判定的指示， 在该指 示中携带有信道分配优先级门限；
本发明实施例中， OMCR中配置有是否启用根据干扰带判决切换的开关， 当该开关打开时， OMCR向 BSC发送启动干扰带判定的指示，在该指示中携 带有信道分配优先级门限及启用干扰带判决的开关参数。 优选的， OMCR并 不是在每次切换时都下发开关参数， 可在站点邻区创建或修改时下发。
优选的， 上述指示可以是站点参数配置消息， 可在 OMCR向 BSC下发 的站点参数配置消息中添加开关参数字段， 在该字段中填写开关参数， 以指 示 BSC启动根据干扰带判决进行小区切换的流程。
当收到的开关参数为开启时， BSC根据邻区配置数据， 将 BTS上才艮的干 扰带信息实时更新至各邻区数据表中。 优选的， 可在 BSC中添加邻区信道干 扰带信息维护模块来实现干扰带信息维护的功能。
优选的，还可在 BSC中增加基于切换目标信道干扰带信息的切换判决模 块， 当需要分配切换目标信道时， 基于切换目标信道干扰带信息的切换判决 模块根据实时更新的干扰带数据判决分配目标信道。
优选的， BSC检测切换原因是否为挽救性切换， 如果为挽救性切换跳过 干扰带信息判决检测流程， 按照现有技术中的切换流程完成切换； 否则， 进 行干扰带信息判决检测流程， 转入步骤 103。 优选的， 可在 BSC中添加基于 切换目标信道干扰带信息的切换判决模块以实现切换判决的功能。
步骤 103、 BSC在需要指示 MS从当前服务小区向邻区切换时， 查询本 地维护的邻区信道干扰带信息；
本发明实施例中， BSC根据网络规划维护邻区信道干扰带信息。优选的， 可通过在 BSC中添加邻区信道干扰带信息维护模块来实现维护邻区信道干扰 带信息的功能。
对邻区信道干扰带信息的维护方法包括： 信道激活后， BSC本地维护的 该信道的干扰带信息清空； 对于空闲的信道， 其对应干扰带信息定期在 BSC 本地更新， 更新周期根据基站干扰带上报周期调整。
步骤 104、所述 BSC根据所述干扰带级别与信道分配优先级关系配置表、 本地维护的邻区信道干扰带信息、所述 OMCR下发的指示中携带的信息和当 前服务小区的各邻区 BCCH电平功率从当前服务小区的各邻区的各信道中， 选择性能最优的信道分配给所述 MS;
步骤 104如图 2所示， 包括步骤 1041-步骤 1044:
步骤 1041、 所述 BSC从所述 OMCR获取干扰带级别与信道分配优先级 关系配置表， 所述干扰带级别与信道分配优先级关系配置表的表项记录了干 扰带级别范围对应的信道分配优先级值， 干扰带级别越低的信道对应的信道 分配优先级值越高；
步骤 1042、所述 BSC根据本地维护的邻区信道干扰带信息，对照所述干 扰带级别与信道分配优先级关系配置表， 确定当前服务小区的各邻区的各信 道对应的信道分配优先级；
根据信道干扰带等级，结合 OMCR上的干扰带级别与信道分配优先级关 系配置表调整信道分配优先级。
步骤 1043、 所述 BSC按所述服务小区的各邻区 BCCH电平功率由高到 低的顺序， 对所述服务小区的各邻区进行排序；
步骤 1044、所述 BSC根据排序好的各邻区、各邻区的各信道的信道分配 优先级及所述信道分配优先级门限选择性能最优的信道分配给所述 MS; 此处的性能最优是指： 兼顾切换目标小区的覆盖范围和强度及目标小区 信道的干净程度。 因为 BCCH电平功率直接反映小区覆盖范围和强度， 是切 换的首要依据， 而与信道分配优先级相对应的干扰带级别是对切换目标小区 信道干净程度的修正， 依照当前服务小区的各邻区 BCCH电平功率由高到低 的顺序选择优先级最高的信道则使得兼顾切换目标小区的覆盖范围和强度及 目标小区信道的干净程度这两个指标综合性能最优。 步骤 1044中， 由于信道分配优先级与信道的干扰带等级相关联， 故可根 据信道分配优先级来选择干扰带等级较低的信道分配给 MS。优选的，可釆用 循环筛选的方式从多个邻区中选择最佳的邻区和信道， 具体方式如下：
所述 BSC依序检查各邻区中是否存在信道分配优先级低于所述信道分配 优先级门限的信道；
在检测到存在信道分配优先级低于所述信道分配优先级门限的信道的邻 区时， 从该邻区中选择信道分配优先级值最小的信道分配给所述 MS。
例如， 对当前服务小区的各邻区进行排序后， 按照排序顺位依次将邻区 称为第一候选邻区、 第二候选邻区 第 N候选邻区。 根据干扰带级别与 信道分配优先级关系配置表和邻区信道干扰带信息， 判断第一候选邻区中是 否有待分配切入的信道的信道分配优先级小于信道分配优先级门限，如果有， 则从该邻区选择一个信道分配优先级最高的信道分配给所述 MS; 否则，对第 二候选邻区信道重复进行上述判决， 依次类推。 如果所有候选邻区中均无待 分配切入的信道的信道分配优先级小于信道分配优先级门限， 则从第一候选 邻区中选择信道分配优先级最高的信道分配给所述 MS。
步骤 105、 所述 BSC指示所述 MS向为其分配的信道进行切换。
本发明实施例提供了一种小区切换方法， BSC在需要指示 MS从当前服 务小区向邻区切换时， 查询本地维护的邻区信道干扰带信息， 从所述服务小 区的各邻区中， 选择干扰带级别较低的信道分配给所述 MS, 然后指示所述 MS向为其分配的信道进行切换，在指示 MS切换时充分考虑了信道干扰， 实 现了保证业务质量前提下的 MS小区切换， 解决了 MS切换影响用户感知度 的问题。 通过添加基于切换目标信道干扰带信息的判决条件， 优化切换判决 流程， 使得 BSC能够主动识别切换目标小区信道干扰情况， 防止向干扰较大 质量不佳的邻区信道发起切换， 可以有效提升网络服务质量， 提升用户感知 度。
下面结合附图， 对本发明的实施例二进行说明。 本发明实施例提供了一种基于干扰带级别的小区切换系统， 包括 BSC; 所述 BSC设置成： 在需要指示 MS从当前服务小区向邻区切换时， 查询 本地维护的邻区信道干扰带信息， 从所述服务小区的各邻区中， 选择干扰带 级别较低的信道分配给所述 MS, 并指示所述 MS向为其分配的信道进行切 换。
优选的， 该系统还包括 OMCR;
所述 OMCR设置成：建立并维护干扰带级别与信道分配优先级关系配置 表， 并根据服务小区和邻区无线质量， 设置信道分配优先级门限， 并向所述 BSC下发启动干扰带判定的指示， 在该指示中携带有信道分配优先级门限； 所述 BSC还设置成： 从所述 OMCR获取干扰带级别与信道分配优先级 关系配置表， 所述干扰带级别与信道分配优先级关系配置表的表项记录了干 扰带级别范围对应的信道分配优先级值， 干扰带级别越低的信道对应的信道 分配优先级值越高。
优选的， 还可以将本发明的实施例提供的小区切换系统模块化， 将模块 集成于 OMCR和 BSC中， 以完成相应功能。 模块化的小区切换系统结构如 图 3所示， OMCR增加干扰带切换判决维护模块， 该干扰带切换判决维护模 块根据网络规划维护基于干扰带切换判决参数信息。 包括干扰带级别与信道 分配优先级关系配置表， 最优实施建议将信道分配优先级配置为 5级（1级 可表示最好） ， 信道分配优先级门限， 最优实施建议将该门限设置为 3。
BSC增加邻区信道干扰带信息维护模块。 该邻区信道干扰带信息维护模 块根据网络规划维护邻区信道干扰带信息。 此外， BSC还需增加基于切换目 标信道干扰带信息的切换判决模块， 该基于切换目标信道干扰带信息的切换 判决模块接收基站上报的干扰带数据，并根据邻区信道干扰带信息，判决 MS 切换目标信道。
图 4描述的是基于切换目标信道干扰带信息的切换判决模块的切换处理 流程图， 包括以下步骤：
步骤 401、 BSC收到 MS测量报告， 并进行现阶段的邻区选择排序后， 检测切换原因是否为挽救性切换， 如果是， 转入现有小区切换流程； 否则， 转入步骤 402。
步骤 402、 判断当前检查的邻区是否为依序排列后的最后一个邻区； 如 果是， 转入步骤 405 , 否则转入步骤 403。
步骤 403、 根据邻区信道干扰带信息维护模块维护的邻区信道干扰带信 息， 对照干扰带切换判决维护模块获取的所述干扰带级别与信道分配优先级 关系配置表， 判断当前检查的邻区中是否有待分配切入信道的信道分配优先 级小于信道分配优先级门限。 如果有， 转入步骤 404; 否则， 转入步骤 402, 对下一邻区的信道重复进行上述判决， 依次类推；
步骤 404、 从当前检查的邻区中选择一个优先级最高的信道进行切换分 配；
步骤 405、 如果所有候选邻区中均无待分配切入信道的信道分配优先级 小于信道分配优先级门限， 则从第一候选邻区中选择一个优先级最高的信道 进行切换分配。
本发明还提供了如下实施例：
一种小区切换方法， 包括：
基站控制器 BSC获得信道分配优先级门限；
所述 BSC在需要指示移动台 MS从当前服务小区向邻区切换时， 查询本 地维护的邻区信道干扰带信息；
所述 BSC根据干扰带级别与信道分配优先级关系配置表、所述邻区信道 干扰带信息、 所述信道分配优先级门限和当前服务小区的各邻区广播信道 BCCH 电平功率从所述服务小区的各邻区中， 选择性能最优的信道分配给所 述 MS;
所述 BSC指示所述 MS向为其分配的信道进行切换。
其中， 所述 BSC从所述服务小区的各邻区中， 选择性能最优的信道分配 给所述 MS的步骤包括：
所述 BSC获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰 带级别与信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信 道分配优先级值， 干扰带级别越低的信道对应的信道分配优先级值越高； 所述 BSC根据本地维护的邻区信道干扰带信息，对照所述干扰带级别与 信道分配优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信 道分配优先级；
所述 BSC按所述服务小区的各邻区 BCCH电平功率由高到低的顺序，对 所述服务小区的各邻区进行排序；
所述 BSC根据排序好的各邻区、各邻区的各信道的信道分配优先级及所 述信道分配优先级门限选择性能最优的信道分配给所述 MS。
其中： 基站控制器 BSC获得信道分配优先级门限的步骤包括： 接收启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门 限；
所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定。
其中， 所述 BSC根据排序好的各邻区、 各邻区的各信道的信道分配优先 级及所述信道分配优先级门限选择性能最优的信道分配给所述 MS的步骤包 括：
按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
该小区切换方法还包括：
当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 所述 BSC从所述第一候选邻区中选择信道分配优先级值最小的 信道分配给所述 MS。
其中： 所述根据服务小区和其邻区无线质量设置的；
所述干扰带级别与信道分配优先级关系配置表是由无线操作维护中心 OMCR建立和维护的；
所述信道分配优先级门限是由所述 OMCR设置的。
该小区切换方法还包括：
所述 BSC收集基站 BTS上报的邻区信道干扰带信息，根据该邻区信道干 扰带信息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括： 更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
该小区切换方法还包括：
在所述 MS需要进行挽救性切换时，所述 BSC直接指示所述 MS向 BCCH 电平功率最高的小区中的任一信道进行切换。
一种 BSC, 包括： 接收模块、 基于切换目标信道干扰带信息的切换判决 模块和邻区信道干扰带信息维护模块， 其中：
所述接收模块设置成： 获得信道分配优先级门限；
所述邻区信道干扰带信息维护模块设置成： 维护当前服务小区的各邻区 的邻区信道干扰带信息， 以供所述 BSC在需要指示移动台 MS从所述服务小 区向邻区切换时查询；
所述切换判决模块设置成： 根据干扰带级别与信道分配优先级关系配置 表、 所述 BSC本地维护的所述邻区信道干扰带信息、 所述信道分配优先级门 限和当前服务小区的各邻区广播信道 BCCH电平功率从所述服务小区的各邻 区中，选择性能最优的信道分配给所述 MS, 并指示所述 MS向为其分配的信 道进行切换。
其中， 所述切换判决模块设置成按照以下方式从所述服务小区的各邻区 中， 选择性能最优的信道分配给所述 MS:
获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰带级别与 信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信道分配优 先级值， 干扰带级别越低的信道对应的信道分配优先级值越高；
根据本地维护的邻区信道干扰带信息， 对照所述干扰带级别与信道分配 优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信道分配优 先级；
按所述服务小区的各邻区 BCCH电平功率由高到低的顺序， 对所述服务 小区的各邻区进行排序；
根据排序好的各邻区、 各邻区的各信道的信道分配优先级及所述信道分 配优先级门限选择性能最优的信道分配给所述 MS。
其中：所述接收模块设置成按照以下方式获得所述信道分配优先级门限： 接收启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门限； 所述 BSC还包括干扰带判定启动模块， 其中：
所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定；
所述干扰带判定启动模块设置成： 根据所述开关参数启动干扰带判定。 其中， 所述切换判决模块设置成按照以下方式根据排序好的各邻区、 各 邻区的各信道的信道分配优先级及所述信道分配优先级门限选择性能最优的 信道分配给所述 MS:
按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
其中， 所述切换判决模块还设置成：
当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 从所述第一候选邻区中选择信道分配优先级值最小的信道分配 给所述 MS。
其中， 所述邻区信道干扰带信息维护模块还设置成： 收集基站 BTS上报的邻区信道干扰带信息， 根据所述邻区信道干扰带信 息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括：
更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
其中， 所述切换判决模块还设置成：
在所述 MS需要进行挽救性切换时， 直接指示所述 MS向 BCCH电平功 率最高的小区中的任一信道进行切换。
一种 OMCR,所述 OMCR增加干扰带切换判决维护模块，所述干扰带切 换判决维护模块包括关系配置表处理模块和信道分配优先级门限处理模块， 其中：
所述关系配置表处理模块设置成： 建立并维护干扰带级别与信道分配优 先级关系配置表；
所述信道分配优先级门限处理模块设置成： 设置信道分配优先级门限并 将其下发给基站控制器 BSC。
其中： 所述信道分配优先级门限处理模块设置成按照以下方式设置所述 信道分配优先级门限： 根据当前服务小区和各邻区无线质量设置所述信道分 配优先级门限；
所述信道分配优先级门限处理模块设置成按照以下方式将所述信道分配 优先级门限下发给 BSC: 向 BSC下发启动干扰带判定的指示， 在所述指示中 携带所述信道分配优先级门限。
其中： 所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC 启动干扰带判定。
一种切换系统， 包括： 如上所述的任意一种 BSC和如上所述的任意一种 OMCR。
本发明实施例提供的小区切换系统， 能够与本发明的实施例所提供的一 种小区切换方法相结合， BSC在需要指示 MS从当前服务小区向邻区切换时， 查询本地维护的邻区信道干扰带信息， 从所述服务小区的各邻区中， 选择干 扰带级别较低的信道分配给所述 MS,然后指示所述 MS向为其分配的信道进 行切换， 在指示 MS切换时充分考虑了信道干扰， 实现了保证业务质量前提 下的 MS小区切换， 解决了 MS切换影响用户感知度的问题。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计 算机程序流程来实现，所述计算机程序可以存储于一计算机可读存储介质中， 所述计算机程序在相应的硬件平台上（如系统、 设备、 装置、 器件等）执行， 在执行时， 包括方法实施例的步骤之一或其组合。
可选地， 上述实施例的全部或部分步骤也可以使用集成电路来实现， 这 些步骤可以被分别制作成一个个集成电路模块， 或者将它们中的多个模块或 步骤制作成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬 件和软件结合。
上述实施例中的各装置 /功能模块 /功能单元可以釆用通用的计算装置来 实现， 它们可以集中在单个的计算装置上， 也可以分布在多个计算装置所组 成的网络上。
上述实施例中的各装置 /功能模块 /功能单元以软件功能模块的形式实现 并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。 上述提到的计算机可读取存储介质可以是只读存储器， 磁盘或光盘等。
任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想 到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范 围应以权利要求所述的保护范围为准。
工业实用性
上述技术方案， BSC在需要指示 MS从当前服务小区向邻区切换时， 查 询本地维护的邻区信道干扰带信息， 根据干扰带级别与信道分配优先级关系 配置表、 BSC本地维护的邻区信道干扰带信息、 信道分配优先级门限和当前 服务小区的各邻区广播信道 BCCH电平功率从所述服务小区的各邻区中， 选 择性能最优的信道分配给所述 MS,然后指示所述 MS向为其分配的信道进行 切换， 在指示 MS切换时充分考虑了信道干扰， 实现了保证业务质量前提下 的 MS小区切换， 解决了 MS切换影响用户感知度的问题。 因此本发明具有 虽的工业实用性。

Claims

权 利 要 求 书
1、 一种小区切换方法， 包括：
基站控制器 BSC获得信道分配优先级门限；
所述 BSC在需要指示移动台 MS从当前服务小区向邻区切换时， 查询本 地维护的邻区信道干扰带信息；
所述 BSC根据干扰带级别与信道分配优先级关系配置表、所述邻区信道 干扰带信息、 所述信道分配优先级门限和当前服务小区的各邻区广播信道 BCCH 电平功率从所述服务小区的各邻区中， 选择性能最优的信道分配给所 述 MS;
所述 BSC指示所述 MS向为其分配的信道进行切换。
2、 根据权利要求 1所述的小区切换方法， 其中， 所述 BSC从所述服务 小区的各邻区中， 选择性能最优的信道分配给所述 MS的步骤包括：
所述 BSC获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰 带级别与信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信 道分配优先级值， 干扰带级别越低的信道对应的信道分配优先级值越高； 所述 BSC根据本地维护的邻区信道干扰带信息，对照所述干扰带级别与 信道分配优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信 道分配优先级；
所述 BSC按所述服务小区的各邻区 BCCH电平功率由高到低的顺序，对 所述服务小区的各邻区进行排序；
所述 BSC根据排序好的各邻区、各邻区的各信道的信道分配优先级及所 述信道分配优先级门限选择性能最优的信道分配给所述 MS。
3、 根据权利要求 2所述的小区切换方法， 其中： 基站控制器 BSC获得 信道分配优先级门限的步骤包括：
接收启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门 限； 所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定。
4、 根据权利要求 2或 3所述的小区切换方法， 其中， 所述 BSC根据排 序好的各邻区、 各邻区的各信道的信道分配优先级及所述信道分配优先级门 限选择性能最优的信道分配给所述 MS的步骤包括：
按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
5、 根据权利要求 4所述的小区切换方法， 该小区切换方法还包括： 当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 所述 BSC从所述第一候选邻区中选择信道分配优先级值最小的 信道分配给所述 MS。
6、 根据权利要求 1或 4所述的小区切换方法， 其中：
所述根据服务小区和其邻区无线质量设置的；
所述干扰带级别与信道分配优先级关系配置表是由无线操作维护中心 OMCR建立和维护的；
所述信道分配优先级门限是由所述 OMCR设置的。
7、 根据权利要求 1所述的小区切换方法， 该小区切换方法还包括： 所述 BSC收集基站 BTS上报的邻区信道干扰带信息，根据该邻区信道干 扰带信息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括： 更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
8、 根据权利要求 1-7中任一项所述的小区切换方法， 该小区切换方法还 包括：
在所述 MS需要进行挽救性切换时，所述 BSC直接指示所述 MS向 BCCH 电平功率最高的小区中的任一信道进行切换。
9、 一种基站控制器 BSC, 包括： 接收模块、 基于切换目标信道干扰带信 息的切换判决模块和邻区信道干扰带信息维护模块， 其中：
所述接收模块设置成： 获得信道分配优先级门限；
所述邻区信道干扰带信息维护模块设置成： 维护当前服务小区的各邻区 的邻区信道干扰带信息， 以供所述 BSC在需要指示移动台 MS从所述服务小 区向邻区切换时查询；
所述切换判决模块设置成： 根据干扰带级别与信道分配优先级关系配置 表、 所述 BSC本地维护的所述邻区信道干扰带信息、 所述信道分配优先级门 限和当前服务小区的各邻区广播信道 BCCH电平功率从所述服务小区的各邻 区中，选择性能最优的信道分配给所述 MS, 并指示所述 MS向为其分配的信 道进行切换。
10、 根据权利要求 9所述的 BSC, 其中， 所述切换判决模块设置成按照 以下方式从所述服务小区的各邻区中， 选择性能最优的信道分配给所述 MS: 获取所述干扰带级别与信道分配优先级关系配置表， 所述干扰带级别与 信道分配优先级关系配置表的表项记录了干扰带级别范围对应的信道分配优 先级值， 干扰带级别越低的信道对应的信道分配优先级值越高；
根据本地维护的邻区信道干扰带信息， 对照所述干扰带级别与信道分配 优先级关系配置表， 确定所述服务小区的各邻区的各信道对应的信道分配优 先级；
按所述服务小区的各邻区 BCCH电平功率由高到低的顺序， 对所述服务 小区的各邻区进行排序；
根据排序好的各邻区、 各邻区的各信道的信道分配优先级及所述信道分 配优先级门限选择性能最优的信道分配给所述 MS。
11、 根据权利要求 10所述的 BSC, 其中：
所述接收模块设置成按照以下方式获得所述信道分配优先级门限： 接收 启动干扰带判定的指示， 所述指示中携带有所述信道分配优先级门限；
所述 BSC还包括干扰带判定启动模块， 其中：
所述指示中还携带有开关参数， 所述开关参数用于指示所述 BSC启动干 扰带判定；
所述干扰带判定启动模块设置成： 根据所述开关参数启动干扰带判定。
12、 根据权利要求 10或 11所述的 BSC, 其中， 所述切换判决模块设置 成按照以下方式根据排序好的各邻区、 各邻区的各信道的信道分配优先级及 所述信道分配优先级门限选择性能最优的信道分配给所述 MS:
按照所述排序顺位依次将当前服务小区的各邻区称为第一候选邻区、 第 二候选邻区， 一直到第 N候选邻区；
根据所述干扰带级别与信道分配优先级关系配置表和各邻区的邻区信道 干扰带信息， 判断第一候选邻区中是否有待分配切入的信道的信道分配优先 级小于所述信道分配优先级门限， 如果有， 则从所述第一候选邻区选择一个 信道分配优先级最高的信道分配给所述 MS; 否则，对第二候选邻区信道重复 上述操作， 直到选择出性能最优的信道分配给所述 MS。
13、 根据权利要求 12所述的 BSC, 其中， 所述切换判决模块还设置成： 当在全部候选邻区均不存在信道分配优先级低于所述信道分配优先级门 限的信道时， 从所述第一候选邻区中选择信道分配优先级值最小的信道分配 给所述 MS。
14、 根据权利要求 9所述的 BSC, 其中， 所述邻区信道干扰带信息维护 模块还设置成：
收集基站 BTS上报的邻区信道干扰带信息， 根据所述邻区信道干扰带信 息在本地维护所述服务小区的各邻区的邻区信道干扰带信息， 包括：
更新空闲的邻区信道干扰带信息和清空激活信道的邻区信道干扰带信 息。
15、 根据权利要求 9-14中任一项所述的 BSC, 其中， 所述切换判决模块 还设置成：
在所述 MS需要进行挽救性切换时， 直接指示所述 MS向 BCCH电平功 率最高的小区中的任一信道进行切换。
16、 一种无线操作维护中心 OMCR,所述 OMCR增加干扰带切换判决维 护模块， 所述干扰带切换判决维护模块包括关系配置表处理模块和信道分配 优先级门限处理模块， 其中：
所述关系配置表处理模块设置成： 建立并维护干扰带级别与信道分配优 先级关系配置表；
所述信道分配优先级门限处理模块设置成： 设置信道分配优先级门限并 将其下发给基站控制器 BSC。
17、 如权利要求 16所述的 OMCR, 其中：
所述信道分配优先级门限处理模块设置成按照以下方式设置所述信道分 配优先级门限： 根据当前服务小区和各邻区无线质量设置所述信道分配优先 级门限；
所述信道分配优先级门限处理模块设置成按照以下方式将所述信道分配 优先级门限下发给 BSC: 向 BSC下发启动干扰带判定的指示， 在所述指示中 携带所述信道分配优先级门限。
18、 如权利要求 17所述的 OMCR, 其中： 所述指示中还携带有开关参 数， 所述开关参数用于指示所述 BSC启动干扰带判定。
19、 一种切换系统， 包括： 如权利要求 9-15中任一项所述的基站控制器 BSC和如权利要求 16-18中任一项所述的无线操作维护中心 OMCR。
PCT/CN2012/071182 2011-06-21 2012-02-16 小区切换方法和系统 WO2012174867A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110167530.1 2011-06-21
CN201110167530.1A CN102843735B (zh) 2011-06-21 2011-06-21 小区切换方法和系统

Publications (1)

Publication Number Publication Date
WO2012174867A1 true WO2012174867A1 (zh) 2012-12-27

Family

ID=47370732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/071182 WO2012174867A1 (zh) 2011-06-21 2012-02-16 小区切换方法和系统

Country Status (2)

Country Link
CN (1) CN102843735B (zh)
WO (1) WO2012174867A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105578546A (zh) * 2016-01-15 2016-05-11 华信咨询设计研究院有限公司 面向客户感知的正弦自适应lte切换方法
CN106559804A (zh) * 2015-09-24 2017-04-05 中国移动通信集团公司 异系统测量优化方法及装置、用户设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1255815A (zh) * 1999-05-21 2000-06-07 深圳市中兴通讯股份有限公司 一种基于小区动态优先级的切换控制方法
CN101031132A (zh) * 2006-02-28 2007-09-05 华为技术有限公司 一种无线资源管理系统及基于该系统的切换控制方法
US7299019B1 (en) * 2001-04-02 2007-11-20 At&T Bls Intellectual Property, Inc. Cellular handoff based on traffic load sharing
CN101651961A (zh) * 2008-08-11 2010-02-17 华为技术有限公司 小区重选的方法和终端
CN101772094A (zh) * 2008-12-31 2010-07-07 北京信威通信技术股份有限公司 一种无线通信系统中的切换方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI941779A (fi) * 1994-04-15 1995-10-16 Nokia Telecommunications Oy Kanavanvaihtomenetelmä ja -järjestely
FI971712A (fi) * 1997-04-22 1998-10-23 Nokia Telecommunications Oy Kanvanvalintamenetelmä GSM/DCS -pohjaisessa solukkoradioverkossa
CN101212764B (zh) * 2006-12-27 2011-09-28 大唐移动通信设备有限公司 频点分配方法及无线网络控制器
US7965681B2 (en) * 2008-05-16 2011-06-21 Nokia Siemens Networks Oy Channel allocation procedure in a meshed network
CN101835243B (zh) * 2010-05-25 2012-05-23 北京星网锐捷网络技术有限公司 无线接入点工作信道选择方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1255815A (zh) * 1999-05-21 2000-06-07 深圳市中兴通讯股份有限公司 一种基于小区动态优先级的切换控制方法
US7299019B1 (en) * 2001-04-02 2007-11-20 At&T Bls Intellectual Property, Inc. Cellular handoff based on traffic load sharing
CN101031132A (zh) * 2006-02-28 2007-09-05 华为技术有限公司 一种无线资源管理系统及基于该系统的切换控制方法
CN101651961A (zh) * 2008-08-11 2010-02-17 华为技术有限公司 小区重选的方法和终端
CN101772094A (zh) * 2008-12-31 2010-07-07 北京信威通信技术股份有限公司 一种无线通信系统中的切换方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106559804A (zh) * 2015-09-24 2017-04-05 中国移动通信集团公司 异系统测量优化方法及装置、用户设备
CN106559804B (zh) * 2015-09-24 2020-05-01 中国移动通信集团公司 异系统测量优化方法及装置、用户设备
CN105578546A (zh) * 2016-01-15 2016-05-11 华信咨询设计研究院有限公司 面向客户感知的正弦自适应lte切换方法
CN105578546B (zh) * 2016-01-15 2018-09-07 华信咨询设计研究院有限公司 面向客户感知的正弦自适应lte切换方法

Also Published As

Publication number Publication date
CN102843735B (zh) 2018-03-23
CN102843735A (zh) 2012-12-26

Similar Documents

Publication Publication Date Title
CN100493228C (zh) 多频点系统中的切换控制方法
CN104066140B (zh) 在无线发射接收单元中实施的用于执行小区重选的方法
US8331939B2 (en) Method and apparatus for neighbor cell configuration and method and apparatus for femtocell base station configuration
EP1733587B1 (en) Methods of and apparatuses for cell-differentiated handover in a mobile communications system
EP2586250B1 (en) Expanded cell search and selection in a mobile wireless device
JP5412624B2 (ja) 移動通信におけるハンドオーバー測定方法及びその装置
EP2509353B1 (en) Method and system for managing neighboring cell information
WO2014087392A2 (en) A method for managing heterogeneous cellular networks
CN104106280A (zh) 测量控制方法、用户设备、控制节点及系统
WO2012139735A1 (en) Management of radio frequencies in a wireless or hybrid mesh network
CN103999506A (zh) 信令业务的减少
CN103188754A (zh) 选择目标小区的方法、节点及系统
WO2013170667A1 (zh) 一种频带测量方法、设备与系统
WO2009117974A1 (zh) 无线通信的方法、基站、室内通信系统及切换方法
KR20090099474A (ko) 셀 품질을 이용하여 계층구조를 이루는 셀 선택 방법
CN101541009A (zh) 一种优化邻区列表的方法、装置及系统
CN102340848A (zh) 双模双待终端控制方法、装置及终端
JP6089116B2 (ja) Ａｎｒタスク実行方法、システム及びａｎｒユーザー設備管理方法、装置
CN106034339A (zh) 一种移动通信系统中盲切换或盲重定向的方法及装置
CN100531434C (zh) 非切换触发手机邻区列表更新的方法
CN102547764A (zh) 一种提高移动健壮性的方法、系统和设备
WO2012075803A1 (zh) 一种切换目标小区的选择方法及系统
CN104284392A (zh) 一种信息发送及小区搜索的方法、装置
WO2012109925A1 (zh) 控制用户设备进行测量的方法及系统
WO2010003324A1 (zh) 一种无线系统的切换方法、系统、基站和终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12803384

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12803384

Country of ref document: EP

Kind code of ref document: A1