CN1722895B - A method of primary carrier frequency reconfiguration in multi-carrier cell - Google Patents
A method of primary carrier frequency reconfiguration in multi-carrier cell Download PDFInfo
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- CN1722895B CN1722895B CN 200410009325 CN200410009325A CN1722895B CN 1722895 B CN1722895 B CN 1722895B CN 200410009325 CN200410009325 CN 200410009325 CN 200410009325 A CN200410009325 A CN 200410009325A CN 1722895 B CN1722895 B CN 1722895B
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Abstract
This invention discloses a method of reshuffling the master carrier frequency in multiply carrier wave area, which comprises the following steps: a) the node B find that the channel which charges the master frequency out of work, sending the notice to the radio network controller; b) the radio network controller will decide whether opening the master carrier frequency reshuffling procedure, if it is, go to the next step; c) opening the master carrier frequency reshuffling procedure, then the base station realize the master and stand-by carrier frequency reshuffling. By said method, the mobile terminal can get system information and other allocation information when the master carrier frequency out of work in the TD-SCDMA agreement standard.
Description
Technical field
The present invention relates to the implementation method that multi-carrier district covers in the field of mobile communication, relate in particular to the main carrier frequency method for reconfiguration in the multi-carrier district.
Background technology
For mobile communication system, the expansion of power system capacity is the problem that producer need consider.Especially at present the TD-SCDMA system compares the WCDMA system, and capacity is on the low side relatively.In order to increase power system capacity, carry out overloading in same sectors/cells and cover the important means of TD-SCDMA system increase power system capacity beyond doubt frequently.
In order to reduce the interference of broadcast channel between carrier frequency, improve system effectiveness, under overloading situation frequently, only on a carrier frequency of cell/section, send pilot tone and broadcast message, a plurality of frequencies use a common broadcasting.As at a cell/section N carrier frequency being arranged, numbering is respectively 1, and 2.......N suppose that carrier frequency 1 sends pilot tone and broadcast message, and other carrier frequency does not just send pilot tone and broadcast message.Carrier frequency 1 is called main carrier frequency so, and other carrier frequency 2......N is called assistant carrier frequency.Main carrier frequency uses identical scrambler and elemental user training sequence code (midamble sign indicating number) with assistant carrier frequency; Common Control Channel is identical; Up-downgoing transfer point configuration consistency.Terminal just can be obtained the frequency configuration of system information of subdistricts and other assistant carrier frequencies by the search main carrier frequency.But bring a problem like this, in case under the situation that main carrier frequency breaks down, terminal just can't have been obtained the configuration information of system information and other assistant carrier frequencies.Therefore how when main carrier frequency breaks down, realize that in time main carrier frequency reshuffles, and make the common signal channel of sub-district unaffected that the configuration information of system information of subdistricts and other assistant carrier frequencies can be broadcasted again just becomes the problem that needs solve.
Summary of the invention
The method that provides the main carrier frequency under a kind of multi-carrier district configuring condition to reshuffle is provided technical problem to be solved by this invention, work as main carrier frequency with solution in the TD-SCDMA consensus standard and break down, portable terminal can't obtain the problem of the configuration information of system information and other assistant carrier frequencies.
In order to solve the problems of the technologies described above, the invention provides a kind of main carrier frequency method for reconfiguration in multi-carrier district, specifically adopt following steps:
Step 1, Node B (NODE B) find that the passage of being responsible for main carrier frequency breaks down, and then sends message to radio network controller (RNC);
Step 2, this radio network controller judge whether it is to need to initiate main carrier frequency to reshuffle flow process, if then carry out next step according to receiving the message that reports;
Step 3 is initiated main carrier frequency and is reshuffled flow process;
Step 4, base station realize that major-minor carrier frequency reshuffles.
The method that above-mentioned main carrier frequency is reshuffled, wherein, step 1 comprises that further Node B judges whether not notify radio network controller just can seize one of them minor carrier voluntarily, if could would finish seizing of minor carrier physical channel voluntarily, send minor carrier to radio network controller then and seize notification message, radio network controller is received back tectonic system broadcast message, the change of notice terminal cell carrier number and minor carrier, and flow process finishes; If can't finish seizing of minor carrier voluntarily, then send failure message to radio network controller.
In step 1, main carrier frequency breaks down reports the mode one of can be in the following way:
A directly utilizes resource status to report indicating section or all Common Control Channel unavailable;
B increases the disabled information unit of indication main carrier frequency in resource status indication, comprise the break down information units of desiring to seize such as minor carrier of indication, cause value, recommendation of main carrier frequency;
C increases a request and carries out the request Indication message that main carrier frequency is reshuffled, and clearly indicates main carrier frequency unavailable, indicates the information units of desiring to seize such as minor carrier of cell identification ID, disabled reason, recommendation in this message.
The method that above-mentioned main carrier frequency is reshuffled, wherein, in step 3, the described flow process of reshuffling adopts earlier sub-district deletion flow process, and original sub-district is deleted, and adopts the sub-district to set up the mode that flow process reconfigures the sub-district again and realizes reshuffling.
The method that above-mentioned main carrier frequency is reshuffled, wherein, in step 3, the described flow process of reshuffling adopts original cell re-configuration to put flow process, put at the cell re-configuration that sends to NODE B and to add the relevant information unit that main carrier frequency is seized minor carrier in the message, comprise the information such as minor carrier that main carrier frequency is seized the indication of minor carrier physical channel, seized.
The method that above-mentioned main carrier frequency is reshuffled, wherein, in step 3, the described flow process of reshuffling adopts the flow process of reformulating signaling, in the main carrier frequency reprovision request message that NODE B sends, comprise the assistant carrier frequency information that sub-district ID, main carrier frequency seize the indication of minor carrier physical channel, seized.
The method that above-mentioned main carrier frequency is reshuffled, wherein, in step 4, comprise the steps: that further radio network controller obtains the cell identification ID that breaks down, and according to cell identification ID, if the minor carrier of desiring to seize that whether can adopt NODE B to recommend is cannot adopt the time, RNC chooses the minor carrier that a minor carrier is seized as main carrier frequency in other minor carrier of this sub-district, the beginning cell re-configuration is put flow process.
After NODE B receives reconfiguration information, judge whether to comprise the information unit of the minor carrier physical channel indication that main carrier frequency seizes, if comprise, obtain the assistant carrier frequency information of being seized, physical channel at original minor carrier is set to the main carrier frequency passage, the public physic channel of allocating cell and broadcast channel on this passage, and this physical channel and original transmission channel and transmission bearer set up mapping relations.
The method that above-mentioned main carrier frequency is reshuffled, wherein, also be included in configuration successful after, NODE B returns cell re-configuration to RNC and puts response message.
The method that above-mentioned main carrier frequency is reshuffled, wherein, also be included in configuration successful after, RNC re-constructs system broadcast information, the change of notice terminal cell carrier number and minor carrier.
Further describe specific embodiments of the present invention below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is that the present invention reports the indication flow process to realize that minor carrier is seized or the main carrier frequency fault reports by resource status;
Fig. 2 is that message is seized in the independent minor carrier physical channel of the present invention;
Fig. 3 is that the present invention realizes that by increasing a similar main carrier frequency reconfiguration request Indication message main carrier frequency fault reports;
Fig. 4 is that the present invention adopts original cell re-configuration to put flow process;
Fig. 5 is that the independent main carrier frequency of the present invention is reshuffled flow process;
Fig. 6 is original multi-carrier frequency cell configuration instruction table;
Fig. 7 is the configuration instruction table that main carrier frequency is seized sub-district behind the minor carrier;
Fig. 8 is a sub-district of the present invention distribution map;
Fig. 9 be the present invention disclose a kind of in multi-carrier district main carrier frequency method for reconfiguration flow chart.
Embodiment
In Fig. 9, the method that a kind of main carrier frequency under the multi-carrier district configuring condition that the present invention discloses is reshuffled.NODE B finds that the passage of being responsible for main carrier frequency breaks down, and then sends message to RNC; RNC judges whether it is to need to initiate main carrier frequency reshuffle flow process according to receiving the message of the notice that main carrier frequency breaks down, and reshuffles flow process if initiate main carrier frequency, and the base station realizes that major-minor carrier frequency reshuffles then.
In an embodiment of the present invention, at first illustrate from following three aspects: main carrier frequency breaks down reports mode; Main carrier frequency reshuffle flow process; The specific implementation method of seizing assistant carrier frequency of base station.
At first, main carrier frequency of the present invention breaks down reports mode, can have dual mode to realize.A kind of is directly to utilize in the present agreement existing resources state to report the indication flow process to realize.Indicating section or all Common Control Channel are unavailable in the resource status Indication message.Resource Operational State:Disabled; Availability Status:failed perhaps increases the disabled information unit of indication main carrier frequency in the resource status Indication message, comprise the break down information units of desiring to seize such as minor carrier of indication, cause value, recommendation of main carrier frequency, as shown in Figure 1.Another increases a similar main carrier frequency reprovision request Indication message as Fig. 3, clearly indicates main carrier frequency unavailable.Indicate the information units of desiring to seize such as minor carrier of sub-district ID, disabled reason, recommendation in the message.
Second the flow process of reshuffling about main carrier frequency:
When RNC receives the resource status indication that Node B reports, from being that Common Control Channel is unavailable or main carrier frequency is unavailable, perhaps receive main carrier frequency reprovision request Indication message according to judging the message, know that main carrier frequency is unavailable, then initiate main carrier frequency and reshuffle flow process.
Reshuffle flow process and can adopt sub-district deletion flow process, original sub-district is deleted, adopt the sub-district to set up the mode that flow process reconfigures the sub-district again and realize.New sub-district is set up the used frequency of main carrier frequency original in the flow process and will be included in the message.The realization of Node B is simple like this.Do not increase reconfiguration process especially.Shortcoming is that Traffic Channel will be affected.The terminal use who is conversing obviously feels network failure.
Reshuffle flow process and adopt original cell re-configuration to put flow process, put at cell re-configuration and add the relevant information unit that main carrier frequency is seized minor carrier in the message.Comprise the information such as minor carrier that main carrier frequency is seized the indication of minor carrier physical channel, seized.Put flow process if continue to use original cell re-configuration, message flow such as Fig. 4.
For flow process is more clear, also can reformulate signaling process such as Fig. 5.In the main carrier frequency reprovision request message, comprise the assistant carrier frequency information that sub-district ID, main carrier frequency seize the indication of minor carrier physical channel, seized.After receiving, NodeB returns response message.After main carrier frequency was reshuffled successfully, RNC will re-construct system broadcast information, the change of notice terminal cell carrier number and minor carrier.
Once more, about the implementation method of seizing minor carrier of base station.
If the situation that RNC does not adopt first deletion sub-district to set up the sub-district again realizes reshuffling of major-minor carrier frequency, Node B realizes that reshuffling of major-minor carrier frequency may be cumbersome from the physics realization so.If deal with improperly, may also need to reconfigure Common transport channel.In the present embodiment, introduce a kind of simple implementation.
Because main carrier frequency uses identical scrambler and basic midamble with minor carrier; Common Control Channel is identical; Up-downgoing transfer point configuration consistency etc.That is to say that main carrier frequency in the sub-district is realized and part that assistant carrier frequency is not realized all is the public part of all carrier frequency in the sub-district, configuration is the same.Therefore when the sub-district is set up, when disposing each carrier frequency, the common part parameter all is configured on other assistant carrier frequencies, though configured, the configuration on the assistant carrier frequency is inoperative, and common signal channel is broadcast system message not.In case main carrier frequency breaks down, at this time Node B is chosen the physical channel of a minor carrier as the object of seizing, is the frequency configuration on this passage the frequency of main carrier frequency, the common signal channel configuration that was configured in originally simultaneously on the main carrier frequency is worked, and this physical channel and original transmission channel and transmission bearer have been set up mapping relations.And beginning broadcast system information on common signal channel.So both saved the time that main carrier frequency is reconfigured to assistant carrier frequency, the appearance that the imperceptible network main carrier frequency of terminal use is reshuffled.
Generally speaking, when the sub-district was set up, Node B can be set up a kind of corresponding relation to logical resource and physical resource.As Fig. 6.Carrier frequency F1 corresponding configuration attribute C1 (common signal channel configuration), D1 (dedicated channel configuration), corresponding physical channel E1, the corresponding configuration attribute Cn of carrier frequency Fn, Dn, corresponding physical channel En.
See Fig. 7, carrier frequency F1 seizes the physical channel of Fn, and corresponding configuration attribute C1, Dn, the common signal channel of carrier frequency F1 correspondence are configured to the configuration Dn of C1, the original minor carrier of dedicated channel configuration maintenance, corresponding physical passage En, and carrier frequency Fn no longer works.
At one of them mode the specific implementation situation is described below.
What Node B found certain cell configuration is overloading situation frequently, that passage of being responsible for main carrier frequency breaks down, Node B judges whether not notify RNC just can seize one of them minor carrier voluntarily, if could would finish seizing of minor carrier physical channel voluntarily, send minor carrier to RNC then and seize notification message, as shown in Figure 2, RNC receives back tectonic system broadcast message, the change of notice terminal cell carrier number and minor carrier, flow process finishes; If can't finish seizing of minor carrier voluntarily, Node B organizational resources state reporting message sends to RNC.Comprise all correlated channels unit that main carrier frequency breaks down in the message, referring to Fig. 1.
After RNC receives the resource status Indication message, judge whether to comprise the information unit that main carrier frequency breaks down,, obtain the sub-district ID that breaks down if comprise this unit, according to sub-district ID, in other assistant carrier frequency of this sub-district, choose an assistant carrier frequency as the minor carrier of being seized.Concrete choosing method:, as far as possible choose the carrier frequency of being seized as quilt from the identical carrier frequency of next-door neighbour's peripheral cell in order to reduce interference to adjacent cell.When the sub-district was set up, putting in order of assistant carrier frequency just arranged according to this consideration, is arranged in the front to being close to the big minor carrier of area interference on every side.Like this, the minor carrier of being seized just can select first assistant carrier frequency.In Fig. 8, main carrier frequency breaks down when the A sub-district, if have identical in the assistant carrier frequency with the frequency of next-door neighbour sub-district, particularly identical with the main carrier frequency of neighbor cell situation then selects the assistant carrier frequency identical and different with sub-district (as the B sub-district) main carrier frequency far away slightly with the next-door neighbour sub-district relatively good as the minor carrier of being seized.
After RNC chooses minor carrier, initiate cell re-configuration process, put at cell re-configuration and comprise the information unit that main carrier frequency is reshuffled in the message, this information unit comprises the information such as minor carrier that main carrier frequency is seized the indication of minor carrier physical channel, seized.After Node B receives that cell re-configuration is put flow process, judge whether to comprise the information unit of main carrier frequency reprovision, if comprise, obtain the assistant carrier frequency of being seized, reconfigure the public physic channel and the broadcast channel BCH of sub-district, and physical channel and original transmission channel and transmission bearer have been set up mapping relations.After the configuration successful, return cell re-configuration to radio network controller (RNC) and put response message.Put flow process referring to Fig. 4 cell re-configuration.
Foregoing is an optimum implementation of the present invention only, is not to be used for limiting the specific embodiment of the present invention, and all modification and changes of carrying out according to the main inventive concept of this method all should belong to the desired protection range of claims of the present invention.
Claims (7)
1. the main carrier frequency method for reconfiguration in the multi-carrier district is characterized in that, comprises the steps:
Step 1, Node B find that the passage of being responsible for main carrier frequency breaks down, and then sends message to radio network controller;
Step 2, this radio network controller judge whether that needing to initiate main carrier frequency reshuffles flow process, if then carry out next step according to receiving the message that reports;
Step 3 is initiated main carrier frequency and is reshuffled flow process,
Wherein, the flow process of reshuffling described main carrier frequency adopts original cell re-configuration to put flow process, put at the cell re-configuration that sends to Node B and to add the relevant information unit that main carrier frequency is seized minor carrier in the message, comprise the minor carrier information that main carrier frequency is seized the indication of minor carrier physical channel and seized;
Perhaps, described main carrier frequency is reshuffled flow process and is adopted the signaling process reformulate, and sends main carrier frequency reprovision request message to Node B, comprises the assistant carrier frequency information that cell identification ID, main carrier frequency seize the indication of minor carrier physical channel and seized;
Step 4, Node B realize that major-minor carrier frequency reshuffles.
2. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 1, it is characterized in that, step 1 comprises that further Node B judges whether not notify radio network controller just can seize one of them minor carrier voluntarily, if could would finish seizing of minor carrier physical channel voluntarily, send minor carrier to radio network controller then and seize notification message, radio network controller is received back tectonic system broadcast message, the change of notice terminal cell carrier number and minor carrier, flow process finishes; If can't finish seizing of minor carrier voluntarily, then send failure message to radio network controller.
3. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 1 and 2 is characterized in that, in step 1, described main carrier frequency breaks down reports the mode one of can be in the following way:
A directly utilizes resource status to report indicating section or all Common Control Channel unavailable;
B increases the disabled information unit of indication main carrier frequency in resource status indication, comprise the break down minor carrier information unit of desiring to seize of indication, cause value and recommendation of main carrier frequency;
C increases a request and carries out the request Indication message that main carrier frequency is reshuffled, and clearly indicates main carrier frequency unavailable, indicates the minor carrier information unit of desiring to seize of cell identification ID, disabled reason and recommendation in this message.
4. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 1 is characterized in that, further comprises the steps:
Radio network controller obtains the cell identification ID that breaks down, and the minor carrier of desiring to seize that judges whether to adopt Node B to recommend according to cell identification ID, if in the time of cannot adopting, radio network controller is chosen the minor carrier that a minor carrier is seized as main carrier frequency in other minor carrier of this sub-district, the beginning cell re-configuration is put flow process;
After Node B is received reconfiguration information, judge whether to comprise the information unit of the minor carrier physical channel indication of seizing, if comprise then obtain the minor carrier information of being seized, originally the physical channel of minor carrier is set to the main carrier frequency passage, the public physic channel of allocating cell and broadcast channel on this passage, and this physical channel and original transmission channel and transmission bearer set up mapping relations.
5. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 1, it is characterized in that, the main carrier frequency of sub-district uses identical scrambler and basic midamble sign indicating number with minor carrier, Common Control Channel is identical, up-downgoing transfer point configuration consistency, set up in the sub-district, during the configuration carrier frequency, the common part parameter all is configured on the major-minor carrier frequency, but the configuration on the assistant carrier frequency is inoperative, its common signal channel is broadcast system message not, and the common part parameter configuration works when the assistant carrier frequency reprovision is changed to main carrier frequency, broadcast system information on common signal channel.
6. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 1 is characterized in that, in step 4, also be included in configuration successful after, Node B is returned cell re-configuration to radio network controller and is put response message.
7. the main carrier frequency method for reconfiguration in the multi-carrier district according to claim 6, it is characterized in that, after comprising also that in step 4 major-minor carrier frequency is reshuffled successfully, radio network controller re-constructs system broadcast information, the change of notice terminal cell carrier number and minor carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200410009325 CN1722895B (en) | 2004-07-12 | 2004-07-12 | A method of primary carrier frequency reconfiguration in multi-carrier cell |
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| CN 200410009325 CN1722895B (en) | 2004-07-12 | 2004-07-12 | A method of primary carrier frequency reconfiguration in multi-carrier cell |
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| CN1722895A CN1722895A (en) | 2006-01-18 |
| CN1722895B true CN1722895B (en) | 2010-09-29 |
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| CN101330728B (en) * | 2007-06-22 | 2011-08-10 | 中兴通讯股份有限公司 | Apparatus for implementing carrier occlusion for multiple frequency points district and implementing method thereof |
| CN101534530B (en) * | 2008-03-13 | 2011-07-27 | 普天信息技术研究院有限公司 | Method, system and control device for cell re-configuration of user equipment |
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| CN101790223A (en) * | 2009-01-22 | 2010-07-28 | 中兴通讯股份有限公司 | Base station multi-carrier information broadcasting method based on multi-carrier system |
| CN103281782B (en) | 2009-01-23 | 2016-08-24 | 华为技术有限公司 | Uplink carrier frequencies management method, equipment and system |
| CN103687064B (en) * | 2009-04-22 | 2017-07-14 | 华为技术有限公司 | The processing method of radio link failure, device and system |
| CN101873717B (en) * | 2009-04-22 | 2013-12-18 | 华为技术有限公司 | Method, device and system for processing radio link failure |
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| CN101998533A (en) * | 2009-08-14 | 2011-03-30 | 中兴通讯股份有限公司 | Carrier configuration and scheduling method and system in LTE-A (Long Term Evolution-Advanced) multi-carrier system |
| CN101646183B (en) * | 2009-08-26 | 2012-09-05 | 华为技术有限公司 | Carrier frequency backup method, backup device and backup system |
| CN101662790B (en) * | 2009-09-17 | 2012-12-19 | 中兴通讯股份有限公司 | Automatic processing method of carrier frequency fault and system thereof |
| US20110105105A1 (en) * | 2009-11-02 | 2011-05-05 | Sagfors Mats Fredrik | Methods and Arrangements in a Wireless Communication System |
| CN102104925A (en) * | 2009-12-22 | 2011-06-22 | 中兴通讯股份有限公司 | Method and system for reducing interference between base stations in fail-soft mode |
| CN102823291B (en) * | 2010-04-06 | 2015-06-17 | 上海贝尔股份有限公司 | Method and device for activating carrier component used for handover of user equipment |
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