CN101835231A - Method for reading routing information of home cells and mobile terminal - Google Patents
Method for reading routing information of home cells and mobile terminal Download PDFInfo
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- CN101835231A CN101835231A CN200910079391A CN200910079391A CN101835231A CN 101835231 A CN101835231 A CN 101835231A CN 200910079391 A CN200910079391 A CN 200910079391A CN 200910079391 A CN200910079391 A CN 200910079391A CN 101835231 A CN101835231 A CN 101835231A
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Abstract
The invention discloses a method for reading routing information of home cells by a mobile terminal. The method comprises the steps of: setting a timer; searching home cells in adjacent macro cells of the current macro cell by the mobile terminal; and reading the required routing information from the searched home cells by the mobile terminal within the timing range of the timer. The invention also discloses a mobile terminal. Based on the method and the mobile terminal, the required routing information read from the home cells by the mobile terminal can be controlled, and the mobile terminal assists the macro cells to determine a switching decision.
Description
Technical field
The present invention relates to obtain the technology of routing information of home cells, be meant a kind of method and portable terminal of reading routing information of home cells especially.
Background technology
In mobile communication system,, need switch to adjacent sub-district when portable terminal moves to the load of cell edge or current area when big.The decision-making of switching is decided by current area, but need be according to the measurement result to neighbor cell signal of mobile terminal reporting.
Home cell is planned in advance unlike normal macrocell, know neighbouring relations each other between the macrocell, and there is interface can carry out information interaction, and for the scene that home cell covers, need provide the Target cell that finds that more routing iinformation could be correct by portable terminal; In addition, have only the physical layer identifications of minority to offer the home cell use in the mobile communication system, therefore be prone to the situation that a plurality of home cells use same physical layer sign at less range content, this may cause current area to make the handover decisions that makes mistake, and makes portable terminal switch to wrong Target cell.
Therefore, portable terminal is except will be to current macrocell reports the physical layer identifications of home cell, also need other routing iinformations with home cell, also report current sub-district as the residing user's group id of overall identification, the home cell of home cell, tracking area identification etc., current like this macrocell according to the more routing iinformation of home cell just can be correct find the target home cell.But, there is not relevant flow process to control these routing iinformations how portable terminal reads home cell at present, so just cause portable terminal can't assist home cell to carry out the decision of correct handover decisions.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and portable terminal of reading routing information of home cells, can control portable terminal and read required routing iinformation from home cell, assists macrocell to carry out the decision of handover decisions.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method of reading routing information of home cells, timer is set, this method also comprises:
Portable terminal is searched for home cell in the adjacent macro cell of current macrocell; Described portable terminal reads required routing iinformation from the home cell that searches in the timing range of described timer.
Wherein, described required routing iinformation comprises the unique identification of home cell at least.
When described mobile terminal to search arrived the family sub-district, this method also comprised: open described timer.
Described search home cell specifically comprises:
Portable terminal is searched for home cell according to each centre carrier frequency of mobile communication system under it and the physical layer identifications scope of preallocated home cell in the adjacent macro cell of current macrocell.
Before described portable terminal read required routing iinformation, this method also comprised:
Judge whether current macrocell is identical with the centre carrier frequency of the home cell that searches, and when centre carrier frequency was identical, described portable terminal read required routing iinformation;
In centre carrier frequency not simultaneously, judge whether described portable terminal has enough free time, and when enough free time was arranged, described portable terminal did not read required routing iinformation; When not having enough free time, described portable terminal is to current macrocell application measurement clearance, and portable terminal reads required routing iinformation according to the measurement clearance that current macrocell distributes; Perhaps, described portable terminal does not read earlier required routing iinformation.
When portable terminal described timer then before or to constantly, when reading all required routing iinformations, this method also comprises: all required routing iinformations that described portable terminal will read report current macrocell, and stop described timer;
When portable terminal arrives constantly at timer, when not reading all required routing iinformations, this method also comprises: the part routing iinformation that described portable terminal will read reports current macrocell, and perhaps portable terminal does not report routing iinformation to current macrocell.
The present invention also provides a kind of portable terminal, comprising:
Timer units is used to be provided with timer;
The data search unit is used for searching for home cell at the neighbor cell of current macrocell;
Data-reading unit is used in the timing range of described timer, from described data search unit searches to home cell read required routing iinformation.
Wherein, described timer units also is used in described data search unit searches during to the family sub-district opening timing device.
In addition, this portable terminal also comprises:
Data processing unit was used for before data-reading unit reads required routing iinformation, judged whether current macrocell is identical with the centre carrier frequency of home cell; Also be used for not simultaneously, judge whether portable terminal has enough free time, and when portable terminal does not have enough free time, obtain measurement clearance to current macrocell in described centre carrier frequency.
Accordingly, described data-reading unit also is used for when described data processing unit judges that the centre carrier frequency of current macrocell and home cell is identical; Perhaps judge when portable terminal has enough free time; When perhaps getting access to measurement clearance, read required routing iinformation; Also be used for when judging that described portable terminal does not have enough free time, not reading required routing iinformation.
Among the present invention, condition by to the portable terminal reading routing information of home cells time is judged, whether bigger etc. as the traffic that whether centre carrier frequency is identical, whether current mobile terminal has enough free time, current mobile terminal of current macrocell and home cell, can control portable terminal and read required routing iinformation rationally, effectively.
In addition, the present invention is also by using timer to control the time that portable terminal reads routing iinformation, to guarantee that portable terminal can in time, normally carry out the switching of sub-district.Simultaneously, current macrocell just can find the target home cell exactly according to the routing iinformation of the home cell that portable terminal reads, and makes correct handover decisions.
Description of drawings
Fig. 1 is the method flow schematic diagram of reading routing information of home cells of the present invention;
Fig. 2 is the composition structural representation of portable terminal of the present invention.
Embodiment
The technical solution of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of method of coming reading routing information of home cells, as shown in Figure 1, specifically comprise by the control portable terminal:
When portable terminal needs switching cell, can search for the adjacent macro cell of current macrocell automatically.In the present invention, the frequency information that portable terminal issues by mobile communication system comes the home cell in the adjacent macro cell is searched for as each centre carrier frequency and physical layer identifications.
Portable terminal can be according to each centre carrier frequency of mobile communication system under it, neighbor cell is searched for, whether when portable terminal searches the sub-district on certain centre carrier frequency, can judge this sub-district by the physical layer identifications of this sub-district is home cell.
Preferably, can set in advance the scope of the physical layer identifications of home cell in the current region, supposing the system is that current region has distributed 510 physical layer identifications, binary number representation with 9, then the scope of cell physical layer identifiers is in the current region: 000000000～111111110, can set the home cell that preceding 50 physical layer identifications are distributed in the current region uses, the macrocell that remaining physical layer identifications is all distributed in the current region uses, the physical layer identifications scope of home cell is in then should the zone: 000000000～000110010, when physical layer identifications that terminal reads is in this scope, can judge that this sub-district is a home cell.
In addition, because portable terminal is to search for home cell according to the centre carrier frequency of system, therefore when terminal searched home cell on certain centre carrier frequency, this centre carrier frequency promptly was the frequency of this home cell.
When portable terminal searches home cell in adjacent macrocell, open default timer.Preferably, can an initial value be set for timer, the initial value of this timer can be set as required by system, and is handed down to portable terminal by broadcast channel, and portable terminal can carry out countdown according to this initial value, up to timer then; Also can be for timer is provided with timing length, initial value is 0, when picking up counting, adds timing according to initial value, up to arriving timing length.The timing mode that other can certainly be arranged.
When mobile terminal to search arrives the family sub-district, also get its centre carrier frequency of cicada, whether the centre carrier frequency of judging this home cell then is identical with the centre carrier frequency of current sub-district of living in, whether the centre carrier frequency of promptly judging home cell is identical with the centre carrier frequency of the current use of portable terminal, if it is inequality, portable terminal is if remove to read the routing iinformation of home cell at this moment so, then portable terminal must stop current communication earlier, adjust the receiver frequency of himself, vacate a period of time and remove to read routing iinformation specially, can have a strong impact on the communications of Mobile Terminals quality like this, therefore when the centre carrier frequency of the centre carrier frequency of family sub-district and current sub-district of living in not simultaneously, execution in step 103 judges whether portable terminal has enough free time earlier; If identical, then execution in step 106, and portable terminal can be directly reads routing iinformation from the broadcast channel of home cell.Wherein, the centre carrier frequency of current macrocell is handed down to portable terminal by the base station when portable terminal enters current macrocell.
It is pointed out that step 102 is optional.Do not having under the situation of step 102, mobile terminal to search directly reads required routing iinformation behind family sub-district and opening timing device, and perhaps execution in step 103, and whether judge that portable terminal is current has enough free time.
Because the routing iinformation of home cell is to send with certain cycle period on its broadcast channel, so want to read all routing iinformations of this home cell, portable terminal needs the time of a cycle period at least, suppose that the cycle period of setting is 10s, then portable terminal needs the time of 10s just can read all routing iinformations of this home cell at least.
In addition, when portable terminal is in disconnected reiving/transmitting state or portable terminal is current when not having the traffic, just have certain free time not go to receive and send data, then can utilize this section free time to read routing iinformation.
When portable terminal is in disconnected reiving/transmitting state, preferably, system can set the time that portable terminal is in disconnected reiving/transmitting state as required, as 60s, and be set in how long used for mobile terminal receives and send data in this section period, as 40s, so remaining time portable terminal is an idle condition, not carrying out the reception and the transmission of any data, is free time then, as 20s during this period of time.This section of portable terminal comparison free time and need read all routing iinformations the minimum time, be the cycle period that home cell sends routing iinformation, as 10s, if free time is greater than cycle period, think that then portable terminal has enough free time to read routing iinformation, execution in step 106, then portable terminal can be adjusted the frequency of self receiver at this section in free time, make it frequency with home cell identical after, read the routing iinformation of home cell; If free time, thinks then that portable terminal does not have enough free time less than cycle period, then execution in step 104.
It is pointed out that step 103 is optional.Do not having under the situation of step 103, portable terminal directly reads required routing iinformation after searching home cell and opening timing device; Perhaps portable terminal selects not read required routing iinformation in the centre carrier frequency of judging current macrocell and home cell not simultaneously.
When portable terminal did not have enough free time to read routing iinformation, judge that the current traffic of portable terminal is whether greater than default threshold value: nbit/s, wherein, the value of n was set as required by system.If the current traffic of portable terminal during more than or equal to threshold value, thinks that the current traffic of portable terminal is bigger, then portable terminal does not read routing iinformation earlier, waits for enough free time, returns execution in step 103; If the current traffic of portable terminal during less than threshold value, thinks that the current traffic of portable terminal is smaller, can read routing iinformation earlier, then execution in step 105.
It is pointed out that step 104 is optional.When judging that portable terminal is current and do not have enough free time, portable terminal can be selected not read routing iinformation earlier, reads after enough free time is arranged by the time again; Perhaps execution in step 105, to current macrocell application measurement clearance.
When portable terminal does not have enough free time, can read routing iinformation to current macrocell application measurement clearance; Perhaps do not have enough free time when portable terminal, and the current traffic is when smaller, to current macrocell application measurement clearance.Current macrocell is that portable terminal distributes measurement clearance, and returns the response that distributes measurement clearance to portable terminal.This step is optionally, and portable terminal is not when having enough free time, and the perhaps current traffic hour can directly select not read required routing iinformation.
Identical with the centre carrier frequency of current macrocell when the family sub-district, perhaps portable terminal has enough free time, and when perhaps current macrocell returned the response that distributes measurement clearance to portable terminal, portable terminal began to read required routing iinformation.
Preferably, the clauses and subclauses of the routing iinformation that portable terminal need read can be set as required by system, and clauses and subclauses that will this required routing iinformation are handed down to portable terminal by broadcast channel, and portable terminal reads corresponding routing iinformation according to the clauses and subclauses of this required routing iinformation to the broadcast channel of family sub-district then.Wherein, required routing iinformation should comprise the unique identification of this home cell at least, as overall identification etc.
Whether then step 107 judges timer, if not, then returns step 106, continues to read routing iinformation; If then execution in step 108.
Such as: portable terminal carries out countdown according to the initial value of timer, and when this initial value was 0, timer was then.The mode that timer is set that other can certainly be arranged.
Timer then after, portable terminal stops to read routing iinformation, and the routing iinformation that reads is reported current macrocell.Timer does not arrive constantly, continues to read routing iinformation; If timer then before, portable terminal has just read all routing iinformations, then reports to current macrocell at once, and stops timer.
Because the routing iinformation of home cell is to send with certain cycle period on its broadcast channel, and portable terminal not necessarily has time enough to remove to read routing iinformation, so portable terminal arrives constantly at timer, differ and read all required routing iinformations surely, at this moment, portable terminal can report current macrocell with a part of routing iinformation that reads as required, and perhaps choosing does not then report.If portable terminal has read required all routing iinformations, then report current macrocell.Preferably, the required routing iinformation clauses and subclauses that portable terminal is set current routing iinformation clauses and subclauses that read and current macrocell are compared, and just can learn whether portable terminal has read all required routing iinformations.In addition, in flow process shown in Figure 1,,, all to stop reading routing iinformation at once no matter whether portable terminal begins to read routing iinformation if timer then.
The time that it is pointed out that the timer unlatching also can be arranged in the step 106, when promptly portable terminal begins to read routing iinformation, and the opening timing device.Can certainly be as required time of opening timing device be arranged in other steps.
Because the setting of timer, can control the time of portable terminal reading routing information of home cells, when even portable terminal does not read all required routing iinformations, also to carry out the switching of sub-district, because if carry out the switching of sub-district untimelyly, can cause portable terminal to go offline, have influence on communications of Mobile Terminals.When portable terminal does not read required routing iinformation or only reads a part in timer time, portable terminal can also switch to adjacent macrocell, because know neighbouring relations each other between the macrocell, can not have influence on communications of Mobile Terminals.
In order to realize the above-mentioned method that reads routing iinformation, the present invention also provides a kind of portable terminal, and as shown in Figure 2, this portable terminal comprises: timer units 10, data search unit 20 and data-reading unit 30, wherein,
Timer units 10 is used to be provided with timer;
Data search unit 20 is used for searching for home cell at the neighbor cell of current macrocell;
Data-reading unit 30 is used in the timing range of timer, reads required routing iinformation from the home cell that data search unit 20 searches.
Wherein, timer units 10, when also being used for searching home cell in data search unit 20, the opening timing device.
Portable terminal of the present invention can also comprise: data processing unit 40, be used for before data-reading unit 30 reads required routing iinformation, and judge whether current macrocell is identical with the centre carrier frequency of home cell; Also be used for not simultaneously, judge whether portable terminal has enough free time, and when portable terminal does not have enough free time, obtain measurement clearance to current macrocell in centre carrier frequency.
Accordingly, data-reading unit 30 also is used for when data processing unit 40 judges that the centre carrier frequency of current macrocell and home cell is identical; Perhaps judge when portable terminal has enough free time; When perhaps getting access to measurement clearance, read required routing iinformation; Also be used for when judging that portable terminal does not have enough free time, not reading required routing iinformation.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the method for a reading routing information of home cells is characterized in that, timer is set, and this method also comprises:
Portable terminal is searched for home cell in the adjacent macro cell of current macrocell; Described portable terminal reads required routing iinformation from the home cell that searches in the timing range of described timer.
2. according to the method for the described reading routing information of home cells of claim 1, it is characterized in that described required routing iinformation comprises the unique identification of home cell at least.
3. according to the method for the described reading routing information of home cells of claim 2, it is characterized in that when described mobile terminal to search arrived the family sub-district, this method also comprised: open described timer.
4. according to the method for claim 1,2 or 3 described reading routing information of home cells, it is characterized in that described search home cell specifically comprises:
Portable terminal is searched for home cell according to each centre carrier frequency of mobile communication system under it and the physical layer identifications scope of preallocated home cell in the adjacent macro cell of current macrocell.
5. according to the method for the described reading routing information of home cells of claim 4, it is characterized in that before described portable terminal read required routing iinformation, this method also comprised:
Judge whether current macrocell is identical with the centre carrier frequency of the home cell that searches, and when centre carrier frequency was identical, described portable terminal read required routing iinformation;
In centre carrier frequency not simultaneously, judge whether described portable terminal has enough free time, and when enough free time was arranged, described portable terminal did not read required routing iinformation; When not having enough free time, described portable terminal is to current macrocell application measurement clearance, and portable terminal reads required routing iinformation according to the measurement clearance that current macrocell distributes; Perhaps, described portable terminal does not read earlier required routing iinformation.
6. according to the method for the described reading routing information of home cells of claim 4, it is characterized in that,
When portable terminal described timer then before or to constantly, when reading all required routing iinformations, this method also comprises: all required routing iinformations that described portable terminal will read report current macrocell, and stop described timer;
When portable terminal arrives constantly at timer, when not reading all required routing iinformations, this method also comprises: the part routing iinformation that described portable terminal will read reports current macrocell, and perhaps portable terminal does not report routing iinformation to current macrocell.
7. a portable terminal is characterized in that, comprising:
Timer units is used to be provided with timer;
The data search unit is used for searching for home cell at the neighbor cell of current macrocell;
Data-reading unit is used in the timing range of described timer, from described data search unit searches to home cell read required routing iinformation.
8. portable terminal according to claim 7 is characterized in that,
Described timer units also is used in described data search unit searches during to the family sub-district opening timing device.
9. according to claim 7 or 8 described portable terminals, it is characterized in that this portable terminal also comprises:
Data processing unit was used for before data-reading unit reads required routing iinformation, judged whether current macrocell is identical with the centre carrier frequency of home cell; Also be used for not simultaneously, judge whether portable terminal has enough free time, and when portable terminal does not have enough free time, obtain measurement clearance to current macrocell in described centre carrier frequency.
10. portable terminal according to claim 9 is characterized in that,
Described data-reading unit also is used for when described data processing unit judges that the centre carrier frequency of current macrocell and home cell is identical; Perhaps judge when portable terminal has enough free time; When perhaps getting access to measurement clearance, read required routing iinformation; Also be used for when judging that described portable terminal does not have enough free time, not reading required routing iinformation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910079391.XA CN101835231B (en) | 2009-03-09 | 2009-03-09 | Method for reading routing information of home cells and mobile terminal |
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| CN200910079391.XA CN101835231B (en) | 2009-03-09 | 2009-03-09 | Method for reading routing information of home cells and mobile terminal |
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| CN101835231B CN101835231B (en) | 2014-09-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052123A (en) * | 2011-10-13 | 2013-04-17 | 中兴通讯股份有限公司 | Method, device and equipment for recognizing small cell in heterogeneous network |
| WO2015078412A1 (en) * | 2013-11-29 | 2015-06-04 | Mediatek Inc. | Communications apparatus and method for carrier search |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442909C (en) * | 2005-01-05 | 2008-12-10 | 华为技术有限公司 | Interlaminar switching method in WCDMA hierarchical network |
| CN101217792B (en) * | 2008-01-16 | 2011-12-28 | 中兴通讯股份有限公司 | A measurement and control method in wireless cellular communication system |
| CN101299890A (en) * | 2008-06-20 | 2008-11-05 | 中兴通讯股份有限公司 | Measurement control method and apparatus based on non-continuation receiving mode |
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2009
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103052123A (en) * | 2011-10-13 | 2013-04-17 | 中兴通讯股份有限公司 | Method, device and equipment for recognizing small cell in heterogeneous network |
| WO2015078412A1 (en) * | 2013-11-29 | 2015-06-04 | Mediatek Inc. | Communications apparatus and method for carrier search |
| US9872236B2 (en) | 2013-11-29 | 2018-01-16 | Mediatek Inc. | Communications apparatus and method for carrier search |
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| CN101835231B (en) | 2014-09-10 |
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Address after: 215500 5th floor, building 4, 68 Lianfeng Road, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changshu intellectual property operation center Co.,Ltd. Address before: 215500 No.13, Caotang Road, Changshu, Suzhou, Jiangsu Province Patentee before: Changshu intellectual property operation center Co.,Ltd. |