CN102149165B - Method of configuring system information for updating location area - Google Patents
Method of configuring system information for updating location area Download PDFInfo
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- CN102149165B CN102149165B CN 201010108141 CN201010108141A CN102149165B CN 102149165 B CN102149165 B CN 102149165B CN 201010108141 CN201010108141 CN 201010108141 CN 201010108141 A CN201010108141 A CN 201010108141A CN 102149165 B CN102149165 B CN 102149165B
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Abstract
The invention discloses a method for configuring system information for updating a location area. The method comprises the steps of periodically transmitting a broadcasting message carrying the system information for updating the location area to user equipment (UE) by a network side according to a preset broadcasting period, wherein the broadcasting message only carries information which is necessary to finish a mobile communication function; and obtaining the system information for updating the location area from the monitored broadcasting message while the UE reselects to enter a TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) network from a GSM (Global System for Mobile Communications) network. By using the invention, system reselection time of the UE can be reduced.
Description
Technical field
The present invention relates to the configuring technical of system information in the mobile communication system, particularly relate to the collocation method that is used for the system information of location area updating in the different system.
Background technology
Along with 3G (Third Generation) Moblie (The Third Generation, 3G) the development of system, 3G system (such as the TD-SCDMA system) and Generation Mobile Telecommunication System (The SecondGeneration, the 2G) system (such as gsm system) that has existed will long-term extensive coexistences.In the situation that current 3G network and 2G are network coexisted, the Interoperability between 3G network and the 2G network is the key factor that affects user's impression.Particularly, paging loss late of causing of the interoperability between the different system cell gravity treatment of handover success rate, handover delay, dual-mode handset frequency, cell reselection time delay and 3G and the 2G between 3G network and the 2G network etc. all will directly affect the performance of network.
Safeguard simultaneously GSM network and TD-SCDMA system scenario specific to needs, when dual-mode user device (UE) enters the TD-SCDMA network from the GSM network reselection, need to again upgrade to the core network launch position district (LAC) of TD-SCDMA according to the current system broadcast information that reads, network could be determined this UE current resident wireless access technology (RAT) network and concrete residential quarter after renewal was finished, beep-page message could be notified to this UE afterwards, and this UE will be in the off-grid state before renewal is finished.That is to say, UE can be in the off-grid state always before it does not successfully carry out location area updating after the GSM network reselection enters the TD-SCDMA network.
Carry out in system's reuse adoption process at UE, UE needs the reading system broadcast to be used for finishing the essential information of mobile communication function to obtain for the information of location area updating and other, thereby can realize mobile communication behind location area updating and the access TD-SCDMA network based on this.And according to existing mobile communication standard, the overall repetition period of existing system broadcast message is 64 frames, wherein, not only carry above-mentioned be used to finishing the necessary essential information of mobile communication function (such as Scheduling Block 1, system information block 1 etc.), also carry some and be used for providing the information that strengthens Mobile Communication Service (such as the location of UE), because said system block of information 1 is arranged in the 64th frame, that is to say the last frame in the repetition period, therefore, but UE need to run through all 64 frames just upgrades in the launch position district.
And as previously mentioned, UE was in the off-grid state before being successfully completed location area updating, therefore, if system's reuse adoption process of UE is long, then can be so that UE can't accept the beep-page message of network in a long time, thus the opposite end paging failure caused, reduce systematic function.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of collocation method of the system information for location area updating, and the method can shorten system's gravity treatment time of UE.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
Collocation method the method for a kind of system information for location area updating may further comprise the steps:
A, network side periodically send the broadcast of carrying for the system information of location area updating to subscriber equipment (UE) according to default broadcast cycle, wherein, only carry in the described broadcast be used to finishing the necessary information of mobile communication function;
B, when described UE enters the TD-SCDMA network from the GSM network reselection, from the described broadcast that listens to, obtain described system information for location area updating.
In sum, the collocation method of the system information that is used for location area updating that the present invention proposes, by information entrained in the simplified system broadcast, this system broadcast message is only carried be used to finishing the necessary information of mobile communication function, to shorten the overall repetition period of system broadcast message.So, just can reduce the time that UE carries out reading system broadcast in system's reuse adoption process, reach the purpose of the system's gravity treatment time that shortens UE.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: consider information entrained in the existing system broadcast message, not only carry be used to finishing the necessary information of mobile communication function, also carry the information that some are used for providing enhancement service, and these are used for providing the information of enhancement service only to offer some having the party's surface function demand UE's, rather than each UE finishes the necessary information of its mobile communication function, and these information can configure to UE when UE asks this partial function again, therefore, this category information can be notified by the form of broadcasting.This shows, can simplify the content of existing system broadcast message, it is only carried above-mentioned be used to finishing the necessary information of mobile communication function, like this, just can reduce UE when carrying out system's gravity treatment to the reading the time of system broadcast message, thereby can shorten system's gravity treatment time of UE.
Fig. 1 is the flow chart of the embodiment of the invention one, and as shown in Figure 1, embodiment one comprises:
Step 101, network side periodically send the broadcast of carrying for the system information of location area updating to UE according to default broadcast cycle, wherein, only carry in the described broadcast be used to finishing the necessary information of mobile communication function.
This step, only be defined as be used to finishing the necessary information of mobile communication function by the content of will carry in the broadcast, realized the simplifying of broadcast body, thereby UE is read in the short period of time be used to finishing the necessary information of mobile communication function.Therefore, can make in the short period of time launch position district renewal process of UE, thereby shorten the time that UE is in off-line state, improve the probability to this UE paging success, and then strengthen network performance.
Particularly, be used for finishing the necessary information of mobile communication function and comprise Scheduling Block 1 (SB1), system information block 1 (SIB1), system information block 2 (SIB2), system information block 3 (SIB3), system information block 5 (SIB5), system information block 7 (SIB7), system information block 11 (SIB11) and system information block 18 (SIB18).Wherein, SIB1, SIB3, SIB5 and SIB7 are for being used for the system information of location area updating.
Further, this step can also be by will be for the preposition mode of the system information of location area updating, these information of being about to are put in the mode of broadcast front, so that the several frames in front (such as front 16 frames) that UE can only read in the broadcast just can get access to the system information for location area updating, could obtain above-mentioned system information for location area updating and needn't by the time read complete broadcast.Like this, UE has carried in having read front several frame, and be used for after the system information of location area updating can launch position district renewal process, thereby can further shorten the time of system's gravity treatment.Be explained below by table 1 and table 2.
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| 0 | MIB | SB1&SIB7 | SIB5 | SIB5 | ||||
| 1 | MIB | SB1 | SIB5 | SIB2&SIB3 | ||||
| 2 | MIB | SB1 | SIB18 | SIB18 | ||||
| 3 | MIB | SB1 | SIB11 | SIB11 | ||||
| 4 | MIB | SB1&SIB7 | SIB5 | SIB5 | ||||
| 5 | MIB | SB1 | SIB5 | SIB11 | ||||
| 6 | MIB | SB1 | SIB11 | SIB11 | ||||
| 7 | MIB | SB1 | SIB11 | SIB1 |
Table 1
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| 0 | MIB | SB1&SIB7 | SIB5 | SIB5 | ||||
| 1 | MIB | SB1&SIB1 | SIB5 | SIB2&SIB3 | ||||
| 2 | MIB | SB1 | SIB18 | SIB18 | ||||
| 3 | MIB | SB1 | SIB11 | SIB11 | ||||
| 4 | MIB | SB1&SIB7 | SIB5 | SIB5 | ||||
| 5 | MIB | SB1&SIB1 | SIB5 | SIB2&SIB3 | ||||
| 6 | MIB | SB1 | SIB11 | SIB11 | ||||
| 7 | MIB | SB1 | SIB11 | SIB11 |
Table 2
Table 1 is existing broadcast structure, and table 2 is the broadcast structure after the present invention optimizes, the corresponding frame of each lattice in the table except the first row and first row, and the content in every lattice is used to indicate the specifying information that carries in this frame.
As can be seen from Table 1, existing broadcast cycle is made of 64 frames, and wherein, because SIB7 and SIB1 are in the beginning and end of this message structure, therefore, UE can only could obtain necessary data and initiate the LAC renewal after having read 64 whole frames.
As can be seen from Table 2, be used for the system information of location area updating: SIB1, SIB3, SIB5 and SIB7 are positioned at top 16 frames of broadcast, and like this, UE only need read the system information that 16 frames just can obtain to be used for location area updating.
Further, this step can also be by repeating to carry the mode for the system information of location area updating in each broadcast, to shorten the transmission cycle of the system information that is used for location area updating, thereby further shorten the time delay that reads for the system information of location area updating, especially in the situation that broadcast cycle can not further shorten.Concrete grammar can for:
In each broadcast cycle, send the cycle according to default location area information, the mode that the employing cycle repeats utilizes described broadcast to carry two the above system informations for location area updating.
Wherein, the described location area information transmission cycle can be arranged according to actual needs by those skilled in the art, preferably can be 32 frames, for example, in the broadcast structure shown in the table 2, the described system information for location area updating of per 32 frames just can repeat once.
In actual applications, SIB11 comprises measuring control information, and this measuring control information comprises the measurement control tabulation of homologous ray adjacent area and different system adjacent area, is maximum block of information (for example, having accounted for 6 message segments in front the sample table 2).If this partial content is optimized the hop count that reduces this block of information, then can further shorten broadcast cycle, correspondingly, the UE reading system required time of broadcasting just can save.Based on this, can also be by reducing the mode of the adjacent area quantity that configures among the SIB11 entrained in the broadcast in this step, the information content among the SIB11 is simplified, namely only consider to carry the good part adjacent area of signal quality in SIB11, other adjacent area then can reinform to UE by the measurement control message by air interface after UE enters connection status.Concrete grammar can for:
For each residential quarter, switching times and the handover success rate of its each adjacent area arrived in network side Real-Time Monitoring this residential quarter in each default measurement period, according to described switching times and the handover success rate of current this residential quarter that monitors to its each adjacent area, divide into groups in adjacent area to this residential quarter, obtain optimum adjacent area group and suboptimum adjacent area group, wherein, adjacent area in the group of described optimum adjacent area is less than or equal to adjacent area in the group of described suboptimum adjacent area at described switching times, perhaps, the adjacent area in the group of described optimum adjacent area on described handover success rate more than or equal to the adjacent area in the group of described suboptimum adjacent area;
The information that only comprises adjacent area in the described optimum adjacent area group of residential quarter, described UE place in the described measuring control information for finishing the necessary information of mobile communication function.
Here need to prove, in actual applications, all adjacent areas of a residential quarter (comprising the residential quarter in homologous ray and the different system) can be determined according to factors such as network topology structures When building their networks.Concrete grammar is that those skilled in the art are known, does not repeat them here.
Here, by by system in running real-time statistics one residential quarter to switching times and the handover success rate of its each adjacent area, and according to switching times and handover success rate, optimum adjacent area or suboptimum adjacent area are divided in each adjacent area of this residential quarter, namely obtain optimum adjacent area group and suboptimum adjacent area group in this step.Like this, just, can determine the adjacent area of the good adjacent area of signal quality and signal quality suboptimum.Particularly, the adjacent area of residential quarter is divided into groups to adopt following method:
Ascending order according to switching times sorts to each adjacent area in this residential quarter, and wherein, when the switching times of two above adjacent areas was identical, then the descending according to handover success rate sorted to described two above adjacent areas;
N adjacent area forms described optimum adjacent area group before selecting from the adjacent area after the ordering, and remaining adjacent area then forms described suboptimum adjacent area group, and wherein, n is the optimum adjacent area quantity of this default residential quarter.
In the said method, according to switching times and handover success rate sorted in each adjacent area of residential quarter, wherein, the priority of switching times is higher than the priority of handover success rate, namely the preferential adjacent area that switching times is minimum is assigned in the group of optimum adjacent area, when the switching times of a plurality of adjacent areas is identical, consider again to judge from the handover success rate aspect, like this, just, arbitrary adjacent area is not more than adjacent area thereafter or is not less than thereafter adjacent area in handover success rate at switching times in the formation after can guaranteeing to sort.Thereby realized according to the ordering of signal quality to the adjacent area.
In the said method, limiting the quantity of adjacent area in the optimum adjacent area group of residential quarter according to the optimum adjacent area quantity n (n 〉=1) of default residential quarter. in actual applications, when n is arranged, need between broadcast cycle and network performance, compromise.When the value of n is excessive, the effect of dwindling broadcast cycle is very little, namely reduce a little less than the effect of system's gravity treatment time delay, and when the value of n is too small, when UE is in connected state, notify to the suboptimum neighboring BS information amount of UE larger by measuring control message, because the measurement control message is the notification message for each UE, namely network side need to send respectively these message to each UE, therefore can cause the expense of larger interface-free resources.Therefore, those skilled in the art can consider according to actual needs that above-mentioned factor arranges the described n in each residential quarter, and in actual applications, the n that adopt each residential quarter can be different.
By foregoing as can be known, in the step 101, can adopt and above-mentionedly will be put in for the system information of location area updating the mode of broadcast foremost frame, repeat to carry in each broadcast and further shorten UE for the mode of the system information of location area updating and the mode that reduces the adjacent area quantity that configures among the entrained SIB11 of broadcast and read for the required time of the system information of location area updating, the launch position district upgrades so that UE carries out after the TD-SCDMA system as early as possible.Because the realization of above-mentioned three kinds of modes is independent of each other, therefore in actual applications, also can utilize arbitrary combination of above-mentioned three kinds of modes, realize that shortening UE reads the system information this purpose for location area updating.
Step 102, when described UE enters the TD-SCDMA network from the GSM network reselection, from the described broadcast that listens to, obtain described system information for location area updating.
In this step, owing to only having carried in the broadcast that UE listens to and being used for finishing the necessary information of mobile communication function, therefore, UE can read the system information that is used for location area updating entrained in this message in the short period of time, thereby launch position district renewal process soon, and then can effectively shorten the time that UE is in off-grid, improve the probability of success to this UE paging.
In sum, be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a collocation method that is used for the system information of location area updating is characterized in that, the method may further comprise the steps:
A, network side periodically send the broadcast of carrying for the system information of location area updating to subscriber equipment (UE) according to default broadcast cycle, wherein, only carry in the described broadcast be used to finishing the necessary information of mobile communication function; Wherein, utilize front 16 frames in the described broadcast to carry described system information for location area updating, described system information for location area updating comprises system information block 1, system information block 3, system information block 5 and system information block 7;
B, when described UE enters the TD-SCDMA network from the GSM network reselection, from the described broadcast that listens to, obtain described system information for location area updating.
2. method according to claim 1, it is characterized in that, in each described broadcast cycle, send the cycle according to default location area information, the mode that the employing cycle repeats utilizes described broadcast to carry two the above system informations for location area updating.
3. method according to claim 2 is characterized in that, described broadcast cycle is 64 frames, and the described location area information transmission cycle is 32 frames.
4. method according to claim 1 is characterized in that, further comprises before the described step a:
For each residential quarter, network side is in advance according to the switching times and the handover success rate that switch to the adjacent area, divide into groups in adjacent area to this residential quarter, obtain optimum adjacent area group and suboptimum adjacent area group, wherein, adjacent area in the group of described optimum adjacent area is not more than the switching times of the adjacent area in the group of described suboptimum adjacent area at described switching times, and perhaps, the adjacent area in the group of described optimum adjacent area is not less than the handover success rate of the adjacent area in the group of described suboptimum adjacent area in described handover success rate;
The information that only comprises adjacent area in the described optimum adjacent area group of residential quarter, described UE place in the described measuring control information for finishing the necessary information of mobile communication function;
Further comprise after the described step b:
After described UE entered connection status, network side was notified the information of adjacent area in the described suboptimum adjacent area group of residential quarter, described UE place to described UE by measuring control message.
5. method according to claim 2 is characterized in that, further comprises before the described step a:
For each residential quarter, switching times and the handover success rate of its each adjacent area arrived in network side Real-Time Monitoring this residential quarter in each default measurement period, according to described switching times and the handover success rate of current this residential quarter that monitors to its each adjacent area, divide into groups in adjacent area to this residential quarter, obtain optimum adjacent area group and suboptimum adjacent area group, wherein, adjacent area in the group of described optimum adjacent area is not more than the switching times of the adjacent area in the group of described suboptimum adjacent area at described switching times, perhaps, the adjacent area in the group of described optimum adjacent area is not less than the handover success rate of the adjacent area in the group of described suboptimum adjacent area in described handover success rate;
The information that only comprises adjacent area in the described optimum adjacent area group of residential quarter, described UE place in the described measuring control information for finishing the necessary information of mobile communication function;
Further comprise after the described step b:
After described UE entered connection status, network side was notified the information of adjacent area in the described suboptimum adjacent area group of residential quarter, described UE place to described UE by measuring control message.
6. method according to claim 4 is characterized in that, for each residential quarter, described grouping comprises:
Ascending order according to switching times sorts to each adjacent area in this residential quarter, and wherein, when the switching times of two above adjacent areas was identical, then the descending according to handover success rate sorted to described two above adjacent areas;
N adjacent area forms described optimum adjacent area group before selecting from the adjacent area after the ordering, and remaining adjacent area then forms described suboptimum adjacent area group, and wherein, n is the optimum adjacent area quantity of this default residential quarter.
7. method according to claim 5 is characterized in that, for each residential quarter, described grouping comprises:
Ascending order according to switching times sorts to each adjacent area in this residential quarter, and wherein, when the switching times of two above adjacent areas was identical, then the descending according to handover success rate sorted to described two above adjacent areas;
N adjacent area forms described optimum adjacent area group before selecting from the adjacent area after the ordering, and remaining adjacent area then forms described suboptimum adjacent area group, and wherein, n is the optimum adjacent area quantity of this default residential quarter.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102281248B (en) * | 2011-08-26 | 2017-02-01 | 中兴通讯股份有限公司 | Transmission method of basic frame information, base station and terminal |
| CN102892166A (en) * | 2012-09-19 | 2013-01-23 | 邦讯技术股份有限公司 | Method for controlling switching through home node B (HNB) |
| CN103067987B (en) * | 2013-01-09 | 2016-06-29 | 大唐移动通信设备有限公司 | The location area updating method of a kind of subscriber equipment and device |
| CN106888485B (en) * | 2015-12-16 | 2020-08-04 | 中国移动通信集团河南有限公司 | CSFB terminal access method, system message SI2_ quater sending method and device |
| KR102109511B1 (en) | 2016-05-31 | 2020-05-12 | 후아웨이 테크놀러지 컴퍼니 리미티드 | How to determine the location of idle user equipment and devices |
| CN107734575B (en) * | 2016-08-12 | 2019-11-22 | 电信科学技术研究院 | A kind of adjacent area system information acquisition method, UE and network side equipment |
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| EP1475921B1 (en) * | 2002-01-23 | 2009-09-30 | Huawei Technologies Co., Ltd. | A method for providing real-time broadcast service in the mobile communication network |
| CN101163321A (en) * | 2006-10-13 | 2008-04-16 | 华为技术有限公司 | Multicast broadcasting service user amount statistical method and base station |
| CN101184290A (en) * | 2007-12-13 | 2008-05-21 | 嘉兴闻泰通讯科技有限公司 | Method of updating start-up position area of multi-card mobile terminal with single GSM communication module |
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