CN102149165A - 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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- CN102149165A CN102149165A CN2010101081417A CN201010108141A CN102149165A CN 102149165 A CN102149165 A CN 102149165A CN 2010101081417 A CN2010101081417 A CN 2010101081417A CN 201010108141 A CN201010108141 A CN 201010108141A CN 102149165 A CN102149165 A CN 102149165A
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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 (as the TD-SCDMA system) and the second generation mobile communication (The SecondGeneration, 2G) system's (as gsm system) coexistence on a large scale for a long time that have existed.Under the network coexisted situation of current 3G network and 2G, the interoperability problem between 3G network and the 2G network is the key factor that influences user's impression.Particularly, paging loss late that interoperability caused between the different system cell gravity treatment of handover success rate, handover delay, dual-mode handset frequency, sub-district gravity treatment time delay and 3G and the 2G between 3G network and the 2G network etc. all will directly influence the performance of network.
Safeguard GSM network and TD-SCDMA system scenario simultaneously specific to needs, when dual-mode user device (UE) when the GSM network reselection enters the TD-SCDMA network, need initiate lane place (LAC) to the core network of TD-SCDMA again according to the current system broadcast information that reads upgrades, after renewal is finished network could determine this UE current resident wireless access technology (RAT) network and concrete sub-district, 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 that UE can be in the off-grid state always after the GSM network reselection enters the TD-SCDMA network before it does not successfully carry out location area updating.
Carry out in system's reuse adoption process at UE, UE needs the reading system broadcast obtaining the information that is used for location area updating and other is used to finish the essential information of mobile communication function, thus the mobile communication after can realizing location area updating and insert the TD-SCDMA network based on this.And according to existing mobile communication standard, the overall repetition period of existing systems broadcast is 64 frames, wherein, not only carry the above-mentioned necessary essential information of mobile communication function (as Scheduling Block 1, system information block 1 etc.) that is used to finish, also carry some and be used to provide the information that strengthens mobile communication service (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, UE need run through 64 all frames and just can initiate location area updating.
And as previously mentioned, UE was in the off-grid state before completing successfully location area updating, therefore, if system's reuse adoption process of UE is long, can make that then UE can't accept the beep-page message of network in a long time, thereby cause the opposite end paging failure, 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 that is used for the system information of location area updating, and this 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:
A kind of this method of collocation method that is used for the system information of location area updating may further comprise the steps:
A, network side periodically send the broadcast of carrying the system information that is used for location area updating to subscriber equipment (UE) according to default broadcast cycle, wherein, only carry in the described broadcast and are used to finish the mobile communication function information necessary;
B, when described UE when the GSM network reselection enters the TD-SCDMA network, from the described broadcast that listens to, obtain the described system information that is used 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 simplifying information entrained in the system broadcast message, this system broadcast message is only carried be used to finish the mobile communication function information necessary, 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 systems broadcast, not only carry and be used to finish the necessary information of mobile communication function, also carry the information that some are used to provide enhancement service, and these are used to provide the information of enhancement service only to offer some to have this aspect functional requirement UE's, rather than each UE finishes the necessary information of its mobile communication function, and these information can dispose when UE asks this partial function to UE again, therefore, this category information can be notified by the form of broadcasting.This shows, can simplify the content of existing systems broadcast, make it only carry the above-mentioned necessary information of mobile communication function that is used to finish, like this, just UE time for reading to system broadcast message when carrying out system's gravity treatment can be reduced, thereby system's gravity treatment time of UE can be shortened.
Fig. 1 is the flow chart of the embodiment of the invention one, and as shown in Figure 1, embodiment one comprises:
This step, only be defined as by the content of will carry in the broadcast and be used to finish the mobile communication function information necessary, realized the simplifying of broadcast body is used to finish the mobile communication function information necessary thereby UE is read in the short period of time.Therefore, can make UE initiate the location area updating process in the short period of time, thereby shorten the time that UE is in off-line state, improve, and then strengthen network performance this UE paging probability of successful.
Particularly, be used to finish the mobile communication function information necessary 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 the system information that is used for location area updating.
Further, this step can also be by the preposition mode of the system information that will be used for location area updating, these information of being about to are put in the mode of broadcast front, the several frames in front (as preceding 16 frames) that make UE can only read in the broadcast just can get access to the system information that is used for location area updating, could obtain the above-mentioned system information that is used for location area updating and needn't read complete broadcast by the time.Like this, the location area updating process can be initiated after the system information that is used for location area updating that UE has carried in several frames before having read, thereby the time of system's gravity treatment can be further shortened.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, and removes first row and first frame of each lattice correspondence being listed as in the table, and the content in every lattice is used for the specifying information of indicating this frame to carry.
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 data necessary 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 and be positioned at top 16 frames of broadcast, 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 of the system information that is used for location area updating in each broadcast, the transmission cycle that is used for the system information of location area updating with shortening, thereby further shorten the time delay that reads the system information that is used for location area updating, especially under 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 utilize described broadcast carry two the above be used for the system information of location area updating.
Wherein, the described location area information transmission cycle can be provided with 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 that is used 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 the sample table 2 in front).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 in this step by reducing the mode of the adjacent area quantity that disposes among the SIB11 entrained in the broadcast, the information content among the SIB11 is simplified, promptly only consider to carry the good part adjacent area of signal quality in SIB11, other adjacent area then can the measurement control messages by air interface reinform to UE after UE enters connection status.Concrete grammar can for:
For each sub-district, the switching times and the handover success rate of its each adjacent area arrived in network side monitoring in real time this sub-district in each default measurement period, according to described switching times and the handover success rate of current this sub-district that monitors to its each adjacent area, divide into groups in adjacent area to this sub-district, 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 the adjacent area in the group of described suboptimum adjacent area on 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 sub-district, described UE place in the described measuring control information that is used for finishing the mobile communication function information necessary.
Here need to prove that in actual applications, all adjacent areas of a sub-district (comprising the sub-district 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 sub-district to the 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 sub-district, promptly obtain optimum adjacent area group and suboptimum adjacent area group in this step.Like this, just, can determine the adjacent area of good adjacent area of signal quality and signal quality suboptimum.Particularly, the adjacent area of sub-district is divided into groups to adopt following method:
Ascending order according to switching times sorts to each adjacent area in this sub-district, 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;
Described optimum adjacent area group is formed in n adjacent area before selecting from the adjacent area after the ordering, and described suboptimum adjacent area group is then formed in remaining adjacent area, and wherein, n is the optimum adjacent area quantity of this default sub-district.
In the said method, according to switching times and handover success rate sorted in each adjacent area of sub-district, wherein, the priority of switching times is higher than the priority of handover success rate, the promptly 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 being not more than adjacent area thereafter or is being not less than thereafter adjacent area on handover success rate in the formation after can guaranteeing to sort on the switching times.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 sub-district according to the optimum adjacent area quantity n (n 〉=1) of default sub-district. in actual applications, when n is provided with, need between broadcast cycle and network performance, compromise.When the value of n is excessive, the effect of dwindling broadcast cycle is very little, promptly reduce a little less than the effect of system's gravity treatment time delay, and when the value of n is too small, to be notified to the suboptimum neighboring BS information amount of UE bigger by measuring control messages when UE is in connected state, because the measurement control messages is the notification message at each UE, promptly network side need send these message respectively to each UE, therefore can cause the expense of bigger interface-free resources.Therefore, those skilled in the art can consider according to actual needs that above-mentioned factor is provided with the described n in each sub-district, and in actual applications, the n that adopt each sub-district can be different.
By foregoing as can be known, in the step 101, the mode that can adopt the above-mentioned system information that will be used for location area updating to be put in the mode of broadcast foremost frame, repeat to carry the mode of the system information that is used for location area updating and reduce the adjacent area quantity that disposes among the entrained SIB11 of broadcast in each broadcast further shortens UE and reads the required time of system information that is used for location area updating, so that UE carries out initiating location area updating as early as possible after the TD-SCDMA system.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 shortening UE and read the system information this purpose that is used for location area updating.
In this step, owing to only carried in the broadcast that UE listened to and be used to finish the mobile communication function information necessary, 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 can initiate the location area updating 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 to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a collocation method that is used for the system information of location area updating is characterized in that, this method may further comprise the steps:
A, network side periodically send the broadcast of carrying the system information that is used for location area updating to subscriber equipment (UE) according to default broadcast cycle, wherein, only carry in the described broadcast and are used to finish the mobile communication function information necessary;
B, when described UE when the GSM network reselection enters the TD-SCDMA network, from the described broadcast that listens to, obtain the described system information that is used for location area updating.
2. method according to claim 1, it is characterized in that, utilize preceding 16 frames in the described broadcast to carry the described system information that is used for location area updating, the described system information that is used for location area updating comprises system information block 1, system information block 3, system information block 5 and system information block 7.
3. method according to claim 1 and 2, 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 utilize described broadcast carry two the above be used for the system information of location area updating.
4. method according to claim 3 is characterized in that, described broadcast cycle is 64 frames, and the described location area information transmission cycle is 32 frames.
5. method according to claim 1 and 2 is characterized in that, further comprises before the described step a:
For each sub-district, 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 sub-district, 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 adjacent area in the group of described suboptimum adjacent area on described switching times, perhaps, the adjacent area in the group of described optimum adjacent area is not less than the adjacent area in the group of described suboptimum adjacent area on described handover success rate;
The information that only comprises adjacent area in the described optimum adjacent area group of sub-district, described UE place in the described measuring control information that is used for finishing the mobile communication function information necessary;
Further comprise after the described step b:
After described UE entered connection status, network side was by measuring the information of control messages with adjacent area in the described suboptimum adjacent area group of sub-district, described UE place.
6. method according to claim 3 is characterized in that, further comprises before the described step a:
For each sub-district, the switching times and the handover success rate of its each adjacent area arrived in network side monitoring in real time this sub-district in each default measurement period, according to described switching times and the handover success rate of current this sub-district that monitors to its each adjacent area, divide into groups in adjacent area to this sub-district, 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 adjacent area in the group of described suboptimum adjacent area on described switching times, perhaps, the adjacent area in the group of described optimum adjacent area is not less than the adjacent area in the group of described suboptimum adjacent area on described handover success rate;
The information that only comprises adjacent area in the described optimum adjacent area group of sub-district, described UE place in the described measuring control information that is used for finishing the mobile communication function information necessary;
Further comprise after the described step b:
After described UE entered connection status, network side was by measuring the information of control messages with adjacent area in the described suboptimum adjacent area group of sub-district, described UE place.
7. method according to claim 5 is characterized in that, for each sub-district, described grouping comprises:
Ascending order according to switching times sorts to each adjacent area in this sub-district, 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;
Described optimum adjacent area group is formed in n adjacent area before selecting from the adjacent area after the ordering, and described suboptimum adjacent area group is then formed in remaining adjacent area, and wherein, n is the optimum adjacent area quantity of this default sub-district.
8. method according to claim 6 is characterized in that, for each sub-district, described grouping comprises:
Ascending order according to switching times sorts to each adjacent area in this sub-district, 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;
Described optimum adjacent area group is formed in n adjacent area before selecting from the adjacent area after the ordering, and described suboptimum adjacent area group is then formed in remaining adjacent area, and wherein, n is the optimum adjacent area quantity of this default sub-district.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012155490A1 (en) * | 2011-08-26 | 2012-11-22 | 中兴通讯股份有限公司 | Transmission method, base station and terminal for basic frame information |
| 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) |
| CN103067987A (en) * | 2013-01-09 | 2013-04-24 | 大唐移动通信设备有限公司 | User equipment location area updating method and device |
| CN106888485A (en) * | 2015-12-16 | 2017-06-23 | 中国移动通信集团河南有限公司 | A kind of cut-in method of CSFB terminals, system message SI2_quarter sending methods and device |
| WO2017206046A1 (en) * | 2016-05-31 | 2017-12-07 | 华为技术有限公司 | Method and device for locating idle state user equipment |
| CN107734575A (en) * | 2016-08-12 | 2018-02-23 | 电信科学技术研究院 | A kind of adjacent area system information acquisition method, UE and network side equipment |
Family Cites Families (4)
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| US20050148297A1 (en) * | 2002-01-23 | 2005-07-07 | Yifeng Lu | Method for providing real− time broadcast service in the mobile communcation network |
| CN101163321B (en) * | 2006-10-13 | 2012-04-18 | 华为技术有限公司 | Multicast broadcasting service user amount statistical method and base station |
| CN100551172C (en) * | 2007-12-13 | 2009-10-14 | 嘉兴闻泰通讯科技有限公司 | Method with updating start-up position area of multi-card mobile terminal of single GSM communication module |
| CN100556215C (en) * | 2008-01-14 | 2009-10-28 | 嘉兴闻泰通讯科技有限公司 | The double card double standby mobile phone of single GSM communication module carries out the periodical location area method for updating |
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| WO2012155490A1 (en) * | 2011-08-26 | 2012-11-22 | 中兴通讯股份有限公司 | Transmission method, base station and terminal for basic frame information |
| 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) |
| CN103067987A (en) * | 2013-01-09 | 2013-04-24 | 大唐移动通信设备有限公司 | User equipment location area updating method and device |
| 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 |
| CN106888485A (en) * | 2015-12-16 | 2017-06-23 | 中国移动通信集团河南有限公司 | A kind of cut-in method of CSFB terminals, system message SI2_quarter sending methods 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 |
| WO2017206046A1 (en) * | 2016-05-31 | 2017-12-07 | 华为技术有限公司 | Method and device for locating idle state user equipment |
| US10587986B2 (en) | 2016-05-31 | 2020-03-10 | Huawei Technologies Co., Ltd. | Method for locating idle-state user equipment and apparatus |
| CN107734575A (en) * | 2016-08-12 | 2018-02-23 | 电信科学技术研究院 | A kind of adjacent area system information acquisition method, UE and network side equipment |
| 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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