CN102088728A - Method, system and device for reporting cell load information and selecting target cell - Google Patents
Method, system and device for reporting cell load information and selecting target cell Download PDFInfo
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- CN102088728A CN102088728A CN2011100233008A CN201110023300A CN102088728A CN 102088728 A CN102088728 A CN 102088728A CN 2011100233008 A CN2011100233008 A CN 2011100233008A CN 201110023300 A CN201110023300 A CN 201110023300A CN 102088728 A CN102088728 A CN 102088728A
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Abstract
The invention discloses a method, system and device for reporting cell load information and selecting a target cell. The method comprises the following steps: receiving load reporting information comprising a frequency band supported by a TD (Time Division) cell and the load information of each frequency band, wherein the load reporting information is reported by a radio network controller (RNC); according to the frequency band supported by the terminal, determining the available TD cell of the frequency band supported by a support terminal; determining the load information of the frequency band supported by the terminal in the available TD cell; and according to the determined load information of the frequency band supported by the terminal in the available TD cell, selecting a target cell for switching. Thus, a BSC (Base Station Controller) can obtain the load information of each frequency band of the adjacent TD cells, and the phenomenon of failed switching caused by that the obtained frequency band is not matched with the frequency band supported by the terminal can be avoided when the target cell is selected.
Description
Technical field
The present invention relates to communication technical field, refer to that especially a kind of cell load information reports and object cell selection method, system and device.
Background technology
Existing terminal is at global system for mobile communications (Global System for Mobile Communications, GSM) with TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA, when abbreviation TD) switching between system, base station controller in the system (Base Station Controller, BSC) or radio network controller (Radio Network Controller RNC) can select suitable Target cell according to cell load information.The Iur-g interface is the interface between RNC and the BSC, by the public-measurement process on the Iur-g interface, and the information on load between TD sub-district and the GSM sub-district alternately, reciprocal process is as shown in Figure 1.Wherein, if RNC need be known the information on load of the GSM sub-district adjacent with the TD sub-district, then RNC initiates the public-measurement initialization procedure, and BSC reports the GSM cell load information by the mode that reports of RNC appointment afterwards; If BSC need be known the information on load of the TD sub-district adjacent with the GSM sub-district, then BSC initiates the public-measurement initialization procedure, and RNC reports the TD cell load information by the mode that reports of BSC appointment afterwards.
The reporting message support of above-mentioned public-measurement once reports the information on load of a plurality of TD or GSM sub-district.Information on load comprises the information on load of sub-district real time business and the information on load of sub-district non-real-time service.Wherein real time business comprises that non-real-time service comprises as mutual (Interactive) class business and background (Background) class business etc. as session (Conversational) class business and stream (Streaming) class business etc.
The information on load of TD sub-district/GSM sub-district that use public-measurement reporting message reports, can improve the GSM sub-district-＞TD sub-district/TD sub-district-＞Target cell was selected when switched the GSM sub-district accuracy, it is improper to avoid Target cell to select, handoff failure between the system that causes when too high as the cell load of selecting improves the success rate of 2G/TD interoperability.
The form that information on load reports is as shown in table 1 below.
Table 1
The process that terminal (UE) is switched to the TD sub-district from the GSM sub-district is as shown in Figure 2:
A1) UE sub-district of living in is the GSM sub-district, and this sub-district is adjacent with some TD sub-district.
A2) BSC initiates the public-measurement process by the Iur-g interface, knows the information on load of adjacent TD sub-district.
A3) when switched the TD sub-district, BSC determined Target cell according to the information on load of adjacent TD sub-district to UE by the GSM sub-district.
(Radio Resource Management RRM) according to the information on load of adjacent TD sub-district, selects suitable TD sub-district to switch as Target cell from adjacent TD sub-district to RRM among the BSC.
The process that terminal (UE) is switched to the GSM sub-district from the TD sub-district is as shown in Figure 3:
B1) UE sub-district of living in is the TD sub-district, and this sub-district is adjacent with some GSM sub-district.
B2) RNC initiates the public-measurement process by the Iur-g interface, knows the information on load of adjacent GSM sub-district.
B3) when switched the GSM sub-district, RNC determined Target cell according to the information on load of adjacent GSM sub-district to UE by the TD sub-district.
(Radio Resource Management RRM) according to the information on load of adjacent GSM sub-district, selects suitable GSM sub-district to switch as Target cell from adjacent GSM sub-district to RRM among the RNC.
Because multiband is supported in the TD sub-district, draws according to the actual sets network planning, A frequency range, B frequency range, A+B frequency range and more optional frequency range and combination can be used in the sub-district; Simultaneously, the frequency range that the terminal of different manufacturers or different editions is supported also may be different, and the terminal ability information that characterizes the terminal band support reports RNC or BSC by idle message.
When UE by the GSM sub-district when switch the TD sub-district, though the BSC of GSM sub-district can obtain the information on load of relevant TD sub-district, but owing to can't obtain the information on load of each frequency range of TD sub-district, thereby may cause the frequency range of selected Target cell and the frequency range of UE support not to match, cause handoff failure between system.For example: UE only supports the A frequency range, is the B frequency range according to the selected Target cell of cell load information, though like this from the cell load angle, selected Target cell is optimum, but still can cause handoff failure between system.
Again for example: UE only supports the A frequency range, but according to the selected Target cell of cell load information is the A+B frequency range, because the information on load of this sub-district is with the comprehensive assessment of A+B frequency range, lower and the load condition with higher of sub-district A frequency range of the load that occurs sub-district B frequency range probably, though like this from the angle of sub-district total load, selected Target cell is optimum, but incompatible with the frequency range of UE support, also may cause the handoff failure between system.
Summary of the invention
The embodiment of the invention provides a kind of cell load information to report and object cell selection method, system and device, in order to solve exist in the prior art terminal by gsm system when the TD system is switched, do not cause the problem of handoff failure owing to the frequency range of selected sub-district and terminal support matches.
A kind of cell load information report method comprises:
After receiving the public-measurement initialization request message of base station controller BSC transmission, measure the information on load of each entrained in the described request message each frequency range of TD sub-district;
Structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range;
Described load reporting message is reported BSC.
A kind of object cell selection method comprises:
The load reporting message of the frequency range of being supported the TD sub-district comprising of receiving that radio network controller (RNC) reports and the information on load of each frequency range;
According to the frequency range that terminal is supported, determine the available TD sub-district of the frequency range that support terminal is supported;
Determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, switch the information on load select target sub-district of the frequency range of supporting according to terminal described in the available TD sub-district of determining.
A kind of cell load information reporting system comprises: base station controller BSC and radio network controller (RNC);
Described BSC is used to send public-measurement initialization request message, and receives the load reporting message that described RNC reports;
Described RNC after being used to receive the public-measurement initialization request message of described BSC transmission, measures the information on load of each entrained in the described request message each frequency range of TD sub-district; Structure comprises the described load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, and the described load reporting message that makes up is reported BSC.
A kind of Target cell selective system comprises: base station controller BSC and radio network controller (RNC);
Described RNC is used to report the load reporting message of the information on load that comprises the frequency range supported the TD sub-district and each frequency range;
Described BSC is used to receive the described load reporting message that described RNC reports; According to the frequency range that terminal is supported, determine the available TD sub-district of the frequency range that support terminal is supported; Determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, switch the information on load select target sub-district of the frequency range of supporting according to terminal described in the available TD sub-district of determining.
A kind of cell load information reporting device comprises:
Receiver module is used to receive the public-measurement initialization request message that base station controller BSC sends;
Measurement module, be used to receive public-measurement initialization request message after, measure the information on load of each entrained in the described request message each frequency range of sub-district;
Reporting module is used to make up the load reporting message of the information on load that comprises the frequency range supported the TD sub-district and each frequency range, and described load reporting message is reported BSC.
A kind of radio network controller comprises above-mentioned cell load information reporting device.
A kind of Target cell choice device comprises:
Information receiving module is used to receive that radio network controller (RNC) reports comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range;
The available cell determination module is used for the frequency range supported according to terminal, determines the available TD sub-district of the frequency range that support terminal is supported;
Frequency range load determination module is used to determine the information on load of the frequency range that terminal is supported described in the available TD sub-district;
The cell selecting module, switch the information on load select target sub-district that is used for the frequency range that terminal is supported described in the basis available TD sub-district of determining.
A kind of base station controller comprises above-mentioned Target cell choice device.
Beneficial effect of the present invention is as follows:
The cell load information that the embodiment of the invention provides reports and object cell selection method, system and device, when receiving the public-measurement initialization request message of base station controller BSC transmission, measure the information on load of each frequency range of TD sub-district, the load reporting message that makes up the information on load that comprises the frequency range supported the TD sub-district and each frequency range reports BSC.Make BSC can know the information on load of each frequency range of adjacent TD sub-district, and be used for follow-up Target cell selection, to improve the accuracy that Target cell is selected.
When carrying out the Target cell selection, determine the Target cell that switches according to the information on load of the frequency range of terminal support and each frequency range of adjacent TD sub-district, the problem that causes handoff failure thereby the frequency range of having avoided frequency range that selected Target cell supports and terminal support does not match, improved terminal from the GSM sub-district handover success rate when switch the TD sub-district.Support the Target cell of this frequency range according to the Frequency Band Selection of terminal support, thereby make and to the process that switch the TD sub-district, can choose more excellent Target cell from the GSM sub-district, improved service quality, the communication disruption of avoiding handoff failure to cause in terminal.
Description of drawings
The flow chart that Fig. 1 reports for cell load information in the prior art;
Fig. 2 is the flow chart that is switched to the TD sub-district by the GSM sub-district in the prior art;
Fig. 3 is the flow chart that is switched to the GSM sub-district by the TD sub-district in the prior art;
Fig. 4 is the flow chart of cell load information report method in the embodiment of the invention one;
Fig. 5 is the flow chart of object cell selection method in the embodiment of the invention two;
Fig. 6 reports structural representation with the Target cell selective system for cell load information in the embodiment of the invention three;
Fig. 7 is the structural representation of cell load information reporting device in the embodiment of the invention three;
Fig. 8 is the structural representation of Target cell choice device in the embodiment of the invention three.
Embodiment
Embodiment one:
The embodiment of the invention one provides a kind of cell load information report method, at radio network controller (RNC) when base station controller (BSC) reports the information on load of TD sub-district, with the frequency range is that unit reports, thereby makes BSC can know the frequency range of adjacent TD sub-district use and the information on load of each frequency range.The flow process of this method as shown in Figure 4, execution in step is as follows:
Step S101:BSC sends public-measurement initialization request message.
BSC sends public-measurement initialization request message to the RNC of adjacent TD sub-district, starts the public-measurement process.The TD sub-district (can be called TD Neighboring Cell List) adjacent with the GSM sub-district is by Operation and Maintenance (Operation and Maintenance, O﹠amp; M) configuration obtains.
Step S102:RNC receives the public-measurement initialization request message that BSC sends.
Step S103:RNC measures the information on load of each frequency range of TD sub-district.
After RNC receives the public-measurement initialization request message of BSC transmission, at each entrained in message TD sub-district, the information on load of each entrained each frequency range of sub-district in the measurement request message.
The information on load of measuring comprises the information on load of sub-district real time business and the information on load of sub-district non-real-time service.Wherein real time business comprises that non-real-time service comprises as mutual (Interactive) class business and background (Background) class business etc. as session (Conversational) class business and stream (Streaming) class business etc.Usually, the information on load of TD sub-district is that (Basic Resource Unit, operating position BRU) obtains for basic resources unit by measuring the TD sub-district.With the real time business of TD sub-district frequency range A load is example, information on load can for:
(each carrier wave remains the maximum available BRU number sum of each carrier wave among available BRU number sum/frequency range A among the 1-frequency range A) * 100.
Step S104: the load reporting message that makes up the information on load comprise the frequency range supported the TD sub-district and each frequency range.
Structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, specifically comprises: each frequency range at the TD sub-district is supported, make up the load reporting message successively, and carry the sign of the frequency range that reports in the load reporting message of structure.Wherein, can comprise uplink real-time traffic load information, descending real time business information on load, up non-real-time service information on load and descending non-real-time service information on load in the load reporting message that reports.
That is to say, increase the band information that the TD sub-district is supported in the cell load information content in the public-measurement reporting message of Iur-g interface, and be the information on load that unit reports the TD sub-district with the frequency range.
For example: the content format of above-mentioned load reporting message can be as shown in table 2 below.
Table 2
Wherein, maxnoofCellFrequencyBand is expressed as maximum frequency range number, the span of sub-district frequency range sign can be expressed as Enumerated (a, b, c ...).
In the above-mentioned table 2, the span 0-3 of non-real-time service correspondence, wherein 0 expression load is low, 1 expression load is medium, 2 expression loads are high, 3 expression traffic overloads.Generally can be by the setting threshold division low, medium, high and overload that realizes loading.
Step S105: the load reporting message that will make up reports BSC.
The form of the load reporting information that exemplifies in the cell load information report method that provides of the embodiment of the invention one, be a kind of for example, carry the band information supported the sub-district in the reporting information and be the information on load of unit reporting subdistrict as long as can be implemented in the practical application with the frequency range.
Embodiment two:
The object cell selection method that the embodiment of the invention two provides a kind of cell load information report method that provides based on embodiment one to realize.At RNC when BSC reports the information on load of TD sub-district, with the frequency range is that unit reports, thereby make BSC can know the frequency range of adjacent TD sub-district use and the information on load of each frequency range, so that according to the information on load of each frequency range and the suitable Target cell of Frequency Band Selection of terminal support.The flow process of this method as shown in Figure 5, execution in step is as follows:
Step S201:BSC receives the load reporting message that RNC reports.
The load reporting message that the RNC that BSC receives reports comprises the frequency range that the TD sub-district of RNC administration is supported and the information on load of each frequency range.BSC receives that RNC reports comprises and specifically comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range:
Base station controller BSC sends the RNC of public-measurement initialization request message to adjacent TD sub-district, RNC measures the information on load of each frequency range of TD sub-district, and the load reporting message that makes up the information on load comprise the frequency range supported the TD sub-district and each frequency range reports BSC, and BSC receives the load reporting message that reports.This process is specifically referring to the description of embodiment one.
The particular content of the load reporting message that RNC reports and form repeat no more referring to the description of embodiment one herein.
After BSC receives the load reporting information that RNC reports, each TD sub-district is supported in the TD Neighboring Cell List the band information and the information on load of each frequency range have just been got access to.
Step S202:, determine the available TD sub-district of the frequency range that support terminal is supported according to the frequency range that terminal is supported.
RRM among the BSC of administration GSM sub-district is according to the ability of terminal, i.e. the frequency range of being supported is selected the available TD sub-district of the frequency range that support terminal supports from the TD Neighboring Cell List, obtain available TD cell list.
If the frequency range that terminal is supported is unique, then can only select to support in the TD Neighboring Cell List TD sub-district of this unique frequency range as available TD sub-district.
If the frequency range that terminal is supported is not unique, but supports some frequency ranges, then can select to support in the TD Neighboring Cell List TD sub-district of the arbitrary frequency range in above-mentioned some frequency ranges as available TD sub-district.
For example: for the terminal of only supporting the A frequency range, the TD sub-district that can only select to support the A frequency range in the TD Neighboring Cell List is as available TD sub-district, and can not select for use the TD sub-district of only supporting the B frequency range as available TD sub-district.For the terminal of supporting A frequency range and B frequency range, the TD sub-district that then can select to support in the TD Neighboring Cell List TD sub-district of A frequency range, the TD sub-district of supporting the B frequency range, support A+B frequency range is as available TD sub-district.
Step S203: the information on load of determining the frequency range that terminal is supported in the available TD sub-district.
Determine the information on load of the frequency range that terminal is supported in the available TD sub-district, specifically comprise:
If the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported in the available TD sub-district that reports.
If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported in the available TD sub-district that reports, calculate the average load of the information on load of each frequency range of obtaining, obtain the information on load of the frequency range that terminal is supported in the available TD sub-district.
For example: for the terminal of only supporting the A frequency range, during the information on load of the frequency range that terminal is supported in determining available TD sub-district, obtain the information on load of A frequency range in the available TD sub-district that reports, be the information on load of the frequency range that terminal is supported in the available TD sub-district.At this moment, if the A frequency range is only supported in available TD sub-district, then directly obtain the information on load of A frequency range; If A frequency range and B frequency range are supported in available TD sub-district, then only obtain the information on load of A frequency range and do not obtain the information on load of B frequency range.
Again for example: for the terminal of supporting A frequency range and B frequency range, during the information on load of the frequency range that terminal is supported in determining available TD sub-district, if available TD only supports the A frequency range in the sub-district, the information on load of the frequency range that the information on load that then directly obtains the A frequency range is supported as terminal in the available TD sub-district; If available TD only supports the B frequency range in the sub-district, the information on load of the frequency range that the information on load that then directly obtains the B frequency range is supported as terminal in the available TD sub-district; If A frequency range and B frequency range are supported in available TD sub-district, then obtain the information on load of A frequency range and the information on load of B frequency range, and the information on load of the frequency range of being supported as terminal in this available TD sub-district with the average load of A frequency range and B frequency range.
Step S204: switch the information on load select target sub-district of the frequency range of supporting according to terminal in the available TD sub-district of determining.
The information on load of the frequency range of supporting according to terminal in the available TD sub-district of determining according to certain strategy, selects suitable Target cell to switch.As example, strategy can for:
For real time business, obtain TD cell uplink residue active volume by " 100 deduct the uplink real-time traffic load ", obtain TD cell downlink residue active volume by " 100 deduct descending real time business load ", can only remain the selection that active volume is all carried out Target cell in the TD sub-district more than or equal to configured threshold in uplink and downlink; For non-real-time service, can only all not be the selection of carrying out Target cell in the TD sub-district of transshipping at uplink and downlink non-real-time service load; Or the like.
The information on load of the object cell selection method that the foregoing description two provides each frequency range of TD sub-district that foundation reports when the select target sub-district, and, accuracy and sub-district success rate for switching that Target cell is selected have been improved with reference to the Target cell of terminal capability selection GSM sub-district when switch the TD sub-district.
Embodiment three
The embodiment of the invention three provides a kind of cell load information to report and the Target cell selective system, and this system configuration comprises base station controller (BSC) and radio network controller (RNC) as shown in Figure 6.Wherein, comprise the cell load information reporting device among the RNC, comprise the Target cell choice device among the BSC.
Above-mentioned system shown in Figure 6 realizes giving the correct time on the cell load information, wherein:
BSC is used to send public-measurement initialization request message, and receives the load reporting message that RNC reports.
RNC, after being used to receive the public-measurement initialization request message of the BSC of institute transmission, at each entrained in request message TD sub-district, the information on load of each each frequency range of TD sub-district of carrying in the measurement request message; Structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, and the load reporting message that makes up is reported BSC.
Preferably, above-mentioned RNC specifically is used for each frequency range of being supported at the TD sub-district, makes up the load reporting message successively, carries the sign of the frequency range that reports in the load reporting message of structure.
Above-mentioned system shown in Figure 6, when realizing that Target cell is selected, wherein:
RNC is used to report the load reporting message of the information on load that comprises the frequency range supported the TD sub-district and each frequency range.
BSC is used to receive the described load reporting message that RNC reports; According to the frequency range that terminal is supported, determine the available TD sub-district of the frequency range that support terminal is supported; Determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, switch the information on load select target sub-district of the frequency range of supporting according to terminal in the available TD sub-district of determining.
Preferably, above-mentioned BSC also is used for: send the RNC of public-measurement initialization request message to adjacent TD sub-district.Accordingly, above-mentioned RNC specifically is used for: when receiving public-measurement initialization request message, the information on load of each entrained each frequency range of TD sub-district in the measurement request message, and the load reporting message that makes up the information on load comprise the frequency range supported the TD sub-district and each frequency range reports BSC.
Preferably, above-mentioned RNC specifically is used for: if the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported in the available TD sub-district that reports; If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported in the available TD sub-district that reports, calculate the average load of the information on load of each frequency range of obtaining, obtain the information on load of the frequency range that terminal is supported in the available TD sub-district.
The structure of above-mentioned cell load information reporting device comprises as shown in Figure 7: receiver module 11, measurement module 12 and reporting module 13.
Preferably, above-mentioned reporting module 13 specifically is used for: each frequency range at the TD sub-district is supported, make up the load reporting message successively, and carry the sign of the frequency range that reports in the load reporting message of structure; The load reporting message that makes up is reported BSC.
The structure of above-mentioned Target cell choice device comprises as shown in Figure 8: information receiving module 21, available cell determination module 22, frequency range load determination module 23 and cell selecting module 24.
Available cell determination module 22 is used for the frequency range supported according to terminal, determines the available TD sub-district of the frequency range that support terminal is supported.
Frequency range load determination module 23 is used for determining the information on load of the frequency range that available TD sub-district terminal supported.
Preferably, above-mentioned frequency range load determination module 23 specifically is used for: if the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported in the available TD sub-district that reports; If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported in the available TD sub-district that reports, calculate the average load of the information on load of each frequency range of obtaining, obtain the information on load of the frequency range that terminal is supported in the available TD sub-district.
Preferably, above-mentioned Target cell choice device also comprises: sending module 25 is used to send the RNC of public-measurement initialization request message to adjacent TD sub-district.
The embodiment of the invention provides cell load information to report and object cell selection method, system and device, at RNC when BSC reports the information on load of TD sub-district, the frequency range that the TD sub-district is supported and the information on load of each frequency range report BSC in the lump, make BSC can know the information on load of each frequency range of adjacent TD sub-district, and be used for follow-up Target cell selection, to improve the accuracy that Target cell is selected.
When carrying out the Target cell selection, determine the Target cell that switches according to the information on load of the frequency range of terminal support and each frequency range of adjacent TD sub-district, cause the problem of handoff failure thereby the frequency range of having avoided frequency range that selected Target cell supports and terminal support does not match, improved terminal Target cell is selected when switch the TD sub-district from the GSM sub-district accuracy and intersystem cell success rate for switching.Support the Target cell of this frequency range according to the Frequency Band Selection of terminal support, thereby make and to the process that switch the TD sub-district, can choose more excellent Target cell from the GSM sub-district, improved service quality, the communication disruption of avoiding handoff failure to cause in terminal.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. a cell load information report method is characterized in that, comprising:
After receiving the public-measurement initialization request message of base station controller BSC transmission, measure the information on load of each entrained in the described request message each frequency range of TD sub-district;
Structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range;
Described load reporting message is reported BSC.
2. the method for claim 1 is characterized in that, described structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, specifically comprises:
Each frequency range at the TD sub-district is supported makes up the load reporting message successively, carries the sign of the frequency range that reports in the load reporting message of structure.
3. method as claimed in claim 1 or 2 is characterized in that, comprises uplink real-time traffic load information, descending real time business information on load, up non-real-time service information on load and descending non-real-time service information on load in the load reporting message that reports.
4. an object cell selection method is characterized in that, comprising:
The load reporting message of the frequency range of being supported the TD sub-district comprising of receiving that radio network controller (RNC) reports and the information on load of each frequency range;
According to the frequency range that terminal is supported, determine the available TD sub-district of the frequency range that support terminal is supported;
Determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, switch the information on load select target sub-district of the frequency range of supporting according to terminal described in the available TD sub-district of determining.
5. method as claimed in claim 4 is characterized in that, described reception RNC reports comprises and specifically comprise the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range:
Base station controller BSC sends the RNC of public-measurement initialization request message to adjacent TD sub-district; And
After receiving the information on load that described RNC measures each entrained in the described request message each frequency range of TD sub-district, the load reporting message that makes up and report the information on load of the frequency range supported the TD sub-district comprising of BSC and each frequency range reports.
6. method as claimed in claim 5 is characterized in that, described structure comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, specifically comprises:
Each frequency range at the TD sub-district is supported makes up the load reporting message successively, carries the sign of the frequency range that reports in the load reporting message of structure.
7. method as claimed in claim 6 is characterized in that, comprises uplink real-time traffic load information, descending real time business information on load, up non-real-time service information on load and descending non-real-time service information on load in the load reporting message that reports.
8. as the arbitrary described method of claim 4-7, it is characterized in that, determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, specifically comprise:
If the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported described in the available TD sub-district that reports;
If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported described in the available TD sub-district that reports, the average load of the information on load of each frequency range that calculating is obtained obtains the information on load of the frequency range that terminal is supported described in the available TD sub-district.
9. a cell load information reporting system is characterized in that, comprising: base station controller BSC and radio network controller (RNC);
Described BSC is used to send public-measurement initialization request message, and receives the load reporting message that described RNC reports;
Described RNC after being used to receive the public-measurement initialization request message of described BSC transmission, measures the information on load of each entrained in the described request message each frequency range of TD sub-district; Structure comprises the described load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range, and the described load reporting message that makes up is reported BSC.
10. system as claimed in claim 9 is characterized in that, described RNC specifically is used for each frequency range of being supported at the TD sub-district, makes up the load reporting message successively, carries the sign of the frequency range that reports in the load reporting message of structure.
11. a Target cell selective system is characterized in that, comprising: base station controller BSC and radio network controller (RNC);
Described RNC is used to report the load reporting message of the information on load that comprises the frequency range supported the TD sub-district and each frequency range;
Described BSC is used to receive the described load reporting message that described RNC reports; According to the frequency range that terminal is supported, determine the available TD sub-district of the frequency range that support terminal is supported; Determine the information on load of the frequency range that terminal is supported described in the available TD sub-district, switch the information on load select target sub-district of the frequency range of supporting according to terminal described in the available TD sub-district of determining.
12. system as claimed in claim 11 is characterized in that, described BSC also is used for: send the RNC of public-measurement initialization request message to adjacent TD sub-district;
Accordingly, described RNC specifically is used for: after receiving public-measurement initialization request message, measure the information on load of each entrained in the described request message each frequency range of sub-district, and the load reporting message that makes up the information on load that comprises the frequency range supported the TD sub-district and each frequency range reports BSC.
13., it is characterized in that described RNC specifically is used for as claim 11 or 12 described systems:
If the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported described in the available TD sub-district that reports;
If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported described in the available TD sub-district that reports, the average load of the information on load of each frequency range that calculating is obtained obtains the information on load of the frequency range that terminal is supported described in the available TD sub-district.
14. a cell load information reporting device is characterized in that, comprising:
Receiver module is used to receive the public-measurement initialization request message that base station controller BSC sends;
Measurement module, be used to receive public-measurement initialization request message after, measure the information on load of each entrained in the described request message each frequency range of sub-district;
Reporting module is used to make up the load reporting message of the information on load that comprises the frequency range supported the TD sub-district and each frequency range, and described load reporting message is reported BSC.
15. device as claimed in claim 14 is characterized in that, described reporting module specifically is used for:
Each frequency range at the TD sub-district is supported makes up the load reporting message successively, carries the sign of the frequency range that reports in the load reporting message of structure;
The load reporting message that makes up is reported BSC.
16. a radio network controller is characterized in that, comprises as claim 14 or 15 described cell load information reporting devices.
17. a Target cell choice device is characterized in that, comprising:
Information receiving module is used to receive that radio network controller (RNC) reports comprises the load reporting message of the information on load of the frequency range supported the TD sub-district and each frequency range;
The available cell determination module is used for the frequency range supported according to terminal, determines the available TD sub-district of the frequency range that support terminal is supported;
Frequency range load determination module is used to determine the information on load of the frequency range that terminal is supported described in the available TD sub-district;
The cell selecting module, switch the information on load select target sub-district that is used for the frequency range that terminal is supported described in the basis available TD sub-district of determining.
18. device as claimed in claim 17 is characterized in that, described frequency range load determination module specifically is used for:
If the frequency range that terminal is supported is unique, then obtain the information on load of the frequency range that terminal is supported described in the available TD sub-district that reports;
If the frequency range that terminal is supported is not unique, then obtain the information on load of each frequency range that terminal is supported described in the available TD sub-district that reports, the average load of the information on load of each frequency range that calculating is obtained obtains the information on load of the frequency range that terminal is supported described in the available TD sub-district.
19. as claim 17 or 18 described devices, it is characterized in that, also comprise: sending module is used to send the RNC of public-measurement initialization request message to adjacent TD sub-district.
20. a base station controller is characterized in that, comprises arbitrary described Target cell choice device as claim 17-19.
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| CN102088728B (en) | 2013-10-02 |
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