CN101193399A - Method and terminal for maintaining information of adjacent cells in long-term evolving system - Google Patents
Method and terminal for maintaining information of adjacent cells in long-term evolving system Download PDFInfo
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- CN101193399A CN101193399A CNA2006101452694A CN200610145269A CN101193399A CN 101193399 A CN101193399 A CN 101193399A CN A2006101452694 A CNA2006101452694 A CN A2006101452694A CN 200610145269 A CN200610145269 A CN 200610145269A CN 101193399 A CN101193399 A CN 101193399A
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Abstract
The invention discloses a method for maintaining the information of an adjacent cell in a long-term evolution system. Aiming at the characteristic that the LTE system supports the variable bandwidth technology, the user equipment determines the measurement types which can be applied to various cells according to the measurement types indicated by a network side and the information of the adjacent cell sent down after receiving the information of the adjacent cell so as to save the effective information of the adjacent cell into a corresponding same frequency adjacent cell list or different frequency adjacent cell list or first saves all the information in the adjacent cell list, determines the measurement types which can be applied to various cells when the measurement needs to be carried out and then determines the adjacent cell to which the corresponding measurement can be applied from the adjacent cell list after receiving the information of the adjacent cell. The invention also discloses a terminal, which can effectively maintain the information of the adjacent cell under an LTE frame. By the utilization of the invention, the effective information can be provided to the user equipment for the measurement of the adjacent cell.
Description
Technical field
The present invention relates to communication technical field, method, the terminal of maintaining information of adjacent cells in particularly a kind of long evolving system.
Background technology
In order to make 3GPP (The 3rd Generation Partnership Project, 3rd Generation Partnership Project) wireless access technology is on a good wicket in future mobile environment with keen competition, just need to consider the Long Term Evolution (LTE, Long TermEvolution) of 3GPP wireless access technology.In LTE, mainly the problem of Xie Jueing is: obtain higher user data rate, improve power system capacity and covering and reasonable spectrum allocation may flexibly.
Switch, sub-district gravity treatment waited Cheng Qian need carry out adjacent cell measurement carrying out by the sub-district for UE (subscriber equipment), to select suitable adjacent sub-district.For this reason, the UE side need be preserved and maintaining information of adjacent cells, and finishes corresponding measurement according to these information, comprises common frequency measurement and different-frequency measure.In existing 3G system,, therefore the type of adjacent cell measurement is also fixed because the transmission bandwidth of the sub-district of UE and system is fixed.Such as, in WCDMA (Wideband Code Division Multiple Access (WCDMA)) system, co-frequency neighbor cell is defined as: the carrier frequency of adjacent area and UE identical with the carrier frequency of Serving cell do not need to adjust the common channel information that receiver just can be received necessary Target cell; Iso-frequency adjacent community is defined as: the carrier frequency of adjacent area is different with the carrier frequency of Serving cell.All UE in same sub-district, its co-frequency neighbor cell, iso-frequency adjacent community are identical.Correspondingly, UE is measured as common frequency measurement to co-frequency neighbor cell; The different-frequency measure that is measured as to iso-frequency adjacent community.Like this, system message or proprietary control messages that UE just can issue according to network side are measured accordingly.
And in the LTE system, the transmission bandwidth of the sub-district of system can for: 1.25/2.5/5/10/20MHz, the bandwidth ability minimum value of UE is 20MHz.Because the two bandwidth is inconsistent, has caused the measurement in the LTE system to be different from measurement of the prior art.For the LTE system, with regard to the classification of adjacent sub-district, present existing definition has following two kinds:
(1) the adjacent sub-district of same frequency layer: refer to and the Serving cell same frequency; The adjacent sub-district of different frequency layer: with the Serving cell different frequency.UE is to the common frequency measurement that is measured as of same frequency layer sub-district; UE is to the different-frequency measure that is measured as of the adjacent sub-district of different frequency layer.
(2) the adjacent sub-district of same frequency layer: refer to and Serving cell same frequency, same bandwidth; The adjacent sub-district of different frequency layer: with Serving cell different frequency or different bandwidth.UE is to the common frequency measurement that is measured as of same frequency layer sub-district; UE may be common frequency measurement to the measurement of the adjacent sub-district of different frequency layer, also may be different-frequency measure.
For the type of measuring, also existing at present as giving a definition:
The situation that does not need when UE is measured adjacent sub-district to adjust the receiver frequency is defined as common frequency measurement, and the situation that needs to adjust the receiver frequency is defined as different-frequency measure.Wherein, the situation of common frequency measurement correspondence has: the maximum bandwidth capability of UE is more than or equal to the bandwidth of system, the common signal channel of adjacent area or/and bandwidth of operation in the receiving belt wide region of UE; The situation of different-frequency measure correspondence has: the carrier frequency of adjacent area and this sub-district is different, the common signal channel of adjacent area or/and bandwidth of operation not in the receiving belt wide region of UE.The common signal channel of indication can be: SCH (synchronizing channel) is or/and BCH (broadcast channel); UE need utilize synchronizing channel to carry out may utilizing BCH to read the information of sub-district synchronously earlier before measuring the sub-district, has also had influence on the measurement type of UE to adjacent sub-district so whether the common signal channel of adjacent area drops in the receiving belt wide region of UE.
At above-mentioned situation, in the LTE system, the information of adjacent cells that network side issues has multiple situation, and UE can't determine to carry out common frequency measurement or different-frequency measure according to measurement type and information of adjacent cells that network side issues.
Summary of the invention
Main purpose of the present invention provides the method for maintaining information of adjacent cells in a kind of long evolving system, to make on purpose maintaining information of adjacent cells of terminal in the LTE system, for adjacent cell measurement is submitted necessary information.
Another object of the present invention provides a kind of terminal, with under the LTE framework, and maintaining information of adjacent cells effectively.
For this reason, the invention provides following technical scheme:
An embodiment of the method for maintaining information of adjacent cells comprises step in a kind of long evolving system of the present invention:
Subscriber equipment obtains information of adjacent cells;
The definite measurement type that can carry out adjacent sub-district;
The measurement type that can carry out according to each adjacent sub-district should the neighbour sub-district information be saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation.
Another embodiment of the method for maintaining information of adjacent cells comprises step in a kind of long evolving system of the present invention:
Subscriber equipment obtains information of adjacent cells, and all is saved in these information in the adjacent cell list;
After starting measurement, subscriber equipment determines can carry out in the described adjacent cell list the adjacent sub-district of corresponding measurement.
An embodiment of terminal of the present invention comprises:
Receiving element is used to obtain the measurement type of network side indication and the information of adjacent cells that issues;
The co-frequency neighbor cell list memory cell is used to store co-frequency neighbor cell list information;
Iso-frequency adjacent community list storage unit is used to store the iso-frequency adjacent community list information;
Judging unit is used for according to described information of adjacent cells, perhaps according to the measurement type and the described information of adjacent cells of network side indication, determines the measurement type that can carry out each adjacent sub-district;
Maintenance unit is used for the measurement type that can carry out each adjacent sub-district determined according to described judging unit, and each adjacent sub-district is write in corresponding the co-frequency neighbor cell list memory cell or iso-frequency adjacent community list storage unit.
Another embodiment of terminal of the present invention comprises:
Receiving element is used to obtain the measurement type of network side indication and the information of adjacent cells that issues;
The adjacent cell list memory cell is used to store the information of adjacent cells that described network side issues;
Judging unit is used for determining can carry out in the described adjacent cell list the adjacent sub-district of corresponding measurement after described receiving element is received the measurement indication of network side.
By above technical scheme provided by the invention as seen, the present invention is directed to the characteristics of LTE system support bandwidth varying technology, by subscriber equipment according to the measurement type of network side indication and the information of adjacent cells that issues, the promptly definite measurement type that can carry out each adjacent sub-district after receiving described information of adjacent cells, thus the information of effective adjacent sub-district is saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation; Perhaps after receiving described information of adjacent cells, all be kept at these information in the adjacent cell list earlier, the definite measurement type that can carry out each adjacent sub-district when needs are measured, from this adjacent cell list, determine the adjacent sub-district to carry out corresponding measurement again, thereby no matter where subscriber equipment is in, can measure accurately adjacent sub-district according to the indication of network side.Utilize terminal of the present invention, can be under the LTE framework, maintaining information of adjacent cells effectively guarantees the accuracy of adjacent cell measurement.
Description of drawings
Fig. 1 is the realization flow figure of the inventive method first embodiment;
Fig. 2 is the schematic diagram that concerns of subscriber equipment and adjacent sub-district;
Fig. 3 is the realization flow figure of the inventive method second embodiment;
Fig. 4 is the realization flow figure of the inventive method the 3rd embodiment;
Fig. 5 is the realization flow figure of the inventive method the 4th embodiment;
Fig. 6 is the theory diagram of terminal first embodiment of the present invention;
Fig. 7 is the theory diagram of terminal second embodiment of the present invention;
Fig. 8 is the theory diagram of terminal the 3rd embodiment of the present invention;
Fig. 9 is the theory diagram of terminal the 4th embodiment of the present invention.
Embodiment
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments the present invention is controlled the method for switching the time of implementation and be described in further detail.
With reference to Fig. 1, Fig. 1 shows the realization flow of the inventive method first embodiment, may further comprise the steps:
Step 101: subscriber equipment obtains the information of adjacent cells that network side issues.
Subscriber equipment can obtain described information of adjacent cells by system message or proprietary measurement control messages that network side issues.Such as, when needs carried out cell selecting or gravity treatment, network side had comprised information of adjacent cells to subscriber equipment sending system message in this system message, and subscriber equipment need be measured this sub-district, according to the measurement of measurement result triggering to adjacent sub-district; Carry out the sub-district when switching at needs, network side is to subscriber equipment sending measuring control messages, and the type that has comprised measurement in this measurements control messages is or/and information of adjacent cells, and subscriber equipment need be measured adjacent sub-district according to the indication of network side.
The adjacent sub-district that comprises in the message that above-mentioned network side sends comprises: classified adjacent sub-district and/or non-classified adjacent sub-district, described classified adjacent sub-district be network side indicated should the neighbour sub-district classification, the relation of the frequency of frequency and subscriber equipment Serving cell (identical or different), even comprise some other information, whether mutually equal such as bandwidth.Classified adjacent sub-district can be following listed one or more:
The adjacent sub-district of same frequency layer, the adjacent sub-district of different frequency layer, co-frequency neighbor cell, iso-frequency adjacent community, need to measure the space adjacent sub-district, do not need to measure the adjacent sub-district in space.
Certainly, not clear and definite these information of network side are then represented in non-classified adjacent sub-district, need be judged by subscriber equipment oneself.
Wherein, co-frequency neighbor cell also can be the adjacent sub-district that other nouns of same concept are represented, such as: do not need to measure the sub-district that the space is measured; Equally, iso-frequency adjacent community also can be the adjacent sub-district that other nouns of same concept are represented, such as: need to measure the sub-district that the space is measured.
Described information of adjacent cells includes but not limited to: the centre frequency of cell ID, adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.
Step 102: determine measurement type to each adjacent sub-district.
If network side has indicated the type of adjacent sub-district, such as, the adjacent sub-district of same frequency layer, the adjacent sub-district of different frequency layer, co-frequency neighbor cell, iso-frequency adjacent community, then subscriber equipment is a common frequency measurement to the measurement that the adjacent sub-district of same frequency layer or co-frequency neighbor cell carry out, the measurement that the adjacent sub-district of different frequency layer or iso-frequency adjacent community are carried out is a different-frequency measure, which receive the measurement indication of network side when subscriber equipment after, just know measuring adjacent sub-district.If the adjacent sub-district that network side issues is classification not, what subscriber equipment may carry out some adjacent sub-district wherein so is common frequency measurement, and what some adjacent sub-district was carried out is different-frequency measure.At this moment, the measurement type of adjacent sub-district need be judged and be determined to subscriber equipment.At this situation, the present invention is to non-classified adjacent sub-district, and subscriber equipment or/and the frequency range of the adjacent sub-district that the subscriber equipment needs are measured, is determined the measurement type of this neighbour sub-district according to the bandwidth of operation of the centre frequency of adjacent sub-district, adjacent sub-district.
Certainly, the principle that different sorting techniques is judged is different.Such as, with reference to the schematic diagram that concerns of subscriber equipment shown in Figure 2 and adjacent sub-district, can judge in such a way:
If the centre frequency of adjacent sub-district is identical with the centre frequency of Serving cell, then subscriber equipment is common frequency measurement or the measurement that do not need to measure the space to the measurement type of adjacent sub-district, as the measurement that be measured as common frequency measurement or do not need measure space of UE1 among Fig. 2 to Cell2.
If the centre frequency of adjacent sub-district is different with the centre frequency of Serving cell, following several situations are arranged:
If the working frequency range of the adjacent sub-district of A is in the receiving belt wide region of subscriber equipment, then subscriber equipment is common frequency measurement or the measurement that do not need to measure the space to the measurement type of adjacent sub-district, as the measurement that be measured as common frequency measurement or do not need measure space of UE1 among Fig. 2 to Cell3, Cell5.
If the part working frequency range of the adjacent sub-district of B is in the receiving belt wide region of subscriber equipment, and the common signal channel of adjacent area divides following two kinds of situations in the receiving belt wide region of subscriber equipment:
1) if subscriber equipment only needs to measure the quality of common signal channel or pilot quality in the public channel bandwidth scope or the pilot quality in the receiving belt wide region, then subscriber equipment is common frequency measurement or the measurement that do not need to measure the space to the measurement type of adjacent sub-district, as the measurement that be measured as common frequency measurement or do not need measure space of UE1 among Fig. 2 to Cell4;
2) if subscriber equipment need be measured the pilot quality in the whole bandwidth ranges in adjacent sub-district, then subscriber equipment is the measurement that different-frequency measure maybe needs to measure the space to the measurement type of adjacent sub-district; As be measured as the measurement that different-frequency measure maybe need measure space of UE1 among Fig. 2 to Cell4.
If the part working frequency range of the adjacent sub-district of C is in the receiving belt wide region of subscriber equipment, and the common signal channel of adjacent sub-district is not in the receiving belt wide region of subscriber equipment, then subscriber equipment is the measurement that different-frequency measure maybe needs to measure the space to the measurement type of adjacent sub-district, as be measured as the measurement that different-frequency measure maybe need measure space of UE1 among Fig. 2 to Cell6.
If the working frequency range of the adjacent sub-district of D and the working frequency range of Serving cell do not have superposed part, then subscriber equipment is the measurement that different-frequency measure maybe needs to measure the space to the measurement type of adjacent sub-district, as be measured as the measurement that different-frequency measure maybe need measure space of UE1 among Fig. 2 to Cell7.
In sum, subscriber equipment judges that the factor that need consider the measurement type of adjacent sub-district is: the centre frequency of adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.In case the frequency range of the adjacent sub-district that subscriber equipment need be measured determines that the centre frequency that then only need consider adjacent sub-district is or/and the bandwidth of operation of adjacent sub-district.Equally, this determination methods also is suitable for network side judgement measurement type.
Step 103: the information that the measurement type that can carry out according to each adjacent sub-district should the neighbour sub-district is saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation.
Following several situation can be arranged:
(1) network side indication is carried out common frequency measurement to certain adjacent sub-district, if subscriber equipment determines that can carry out co-frequency neighbor cell to this neighbour sub-district measures, information that then should the neighbour sub-district is saved in the co-frequency neighbor cell list;
(2) network side indication is carried out common frequency measurement to certain adjacent sub-district, if subscriber equipment determines that can not carry out co-frequency neighbor cell to this neighbour sub-district measures, information that then should the neighbour sub-district abandons;
(3) network side indication is carried out different-frequency measure to certain adjacent sub-district, if subscriber equipment determines that can carry out iso-frequency adjacent community to this neighbour sub-district measures, information that then should the neighbour sub-district is saved in the iso-frequency adjacent community tabulation;
(4) network side indication is carried out different-frequency measure to certain adjacent sub-district, if subscriber equipment determines that can not carry out iso-frequency adjacent community to this neighbour sub-district measures, information that then should the neighbour sub-district abandons.
To classified adjacent sub-district,, perhaps be saved in during corresponding iso-frequency adjacent community tabulates because therefore the type that network side clearly should the neighbour sub-district can directly be saved in its information in the corresponding co-frequency neighbor cell list.If should the neighbour sub-district be co-frequency neighbor cell, then its information be saved in the co-frequency neighbor cell list; If should the neighbour sub-district be iso-frequency adjacent community, then its information be saved in the iso-frequency adjacent community tabulation.
Like this, when subscriber equipment was measured adjacent sub-district, what the adjacent sub-district in the co-frequency neighbor cell list of preserving was carried out was common frequency measurement, and what the adjacent sub-district in the iso-frequency adjacent community tabulation of preserving was carried out is different-frequency measure.
In sum, in this embodiment, subscriber equipment can perhaps according to the measurement type of information of adjacent cells and network side indication, be determined the measurement type that adjacent sub-district is carried out separately according to information of adjacent cells.
With reference to Fig. 3, Fig. 3 shows the realization flow of the inventive method second embodiment.
In this embodiment, no matter which kind of adjacent sub-district the adjacent sub-district that network side issues is, subscriber equipment is all directly with its preservation.When subscriber equipment need be measured, judge the type of adjacent sub-district as needs, then judge earlier and measure again.
This flow process may further comprise the steps:
Step 301: subscriber equipment obtains the information of adjacent cells that network side issues, and these information all are saved in the adjacent cell list.
Subscriber equipment can obtain described information of adjacent cells by system message or proprietary measurement control messages that network side issues.
Described adjacent sub-district comprises: classified adjacent sub-district and/or non-classified adjacent sub-district, described classified adjacent sub-district be network side indicated should the neighbour sub-district frequency and the relation (identical or different) of the frequency of subscriber equipment Serving cell, even comprise some other information, whether mutually equal such as bandwidth.Classified adjacent sub-district can be following listed one or more:
The adjacent sub-district of same frequency layer, the adjacent sub-district of different frequency layer, co-frequency neighbor cell, iso-frequency adjacent community.
Certainly, not clear and definite these information of network side are then represented in non-classified adjacent sub-district, need be judged by subscriber equipment oneself.
Wherein, co-frequency neighbor cell also can be the adjacent sub-district that other nouns of same concept are represented, such as: do not need to measure the sub-district that the space is measured; Equally, iso-frequency adjacent community also can be the adjacent sub-district that other nouns of same concept are represented, such as: need to measure the sub-district that the space is measured.
Described information of adjacent cells includes but not limited to: the centre frequency of cell ID, adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.
Step 302: receive the measurement indication of network side when subscriber equipment after, determine to carry out in the adjacent cell list the adjacent sub-district of corresponding measurement.
Because the information of adjacent cells that subscriber equipment is received has two kinds of situations, so subscriber equipment correspondingly has two kinds of behaviors:
1) subscriber equipment can begin to measure according to measurement type, the information of adjacent cells received, does not need subscriber equipment to judge or differentiation.At this moment, subscriber equipment is measured according to the measurement type of network side indication the adjacent sub-district that will measure.
2) subscriber equipment need judge that what carry out is common frequency measurement or different-frequency measure to the adjacent sub-district that will measure.That is to say that to non-classified adjacent sub-district, subscriber equipment or/and the frequency range of the adjacent sub-district that the subscriber equipment needs are measured, is determined the measurement type of this neighbour sub-district according to the bandwidth of operation of the centre frequency of adjacent sub-district, adjacent sub-district.The measurement type to adjacent sub-district that subscriber equipment is judged according to its described measurement type and subscriber equipment again determines whether the corresponding measurement that can carry out this neighbour sub-district to have following several situation:
Network side indication carrying out common frequency measurement, subscriber equipment are judged and can be carried out the co-frequency neighbor cell measurement to the sub-district that will measure, then carry out common frequency measurement;
Network side indication carrying out different-frequency measure, subscriber equipment are judged and can be carried out the iso-frequency adjacent community measurement to the sub-district that will measure, then carry out different-frequency measure;
Network side indication carrying out common frequency measurement, subscriber equipment is judged can not carry out common frequency measurement, does not then measure;
Network side indication carrying out different-frequency measure, subscriber equipment is judged can not carry out different-frequency measure, does not then measure.
Step 303: subscriber equipment carries out common frequency measurement or different-frequency measure to the adjacent sub-district of determining.
With reference to Fig. 4, Fig. 4 shows the realization flow of the inventive method the 3rd embodiment.
In this embodiment, the adjacent sub-district that network side issues is classification not, and subscriber equipment is directly with its preservation.This moment, subscriber equipment also needed to judge the measurement type of adjacent sub-district, added the indication information of measuring type in Neighboring Cell List.
This flow process may further comprise the steps:
Step 401: subscriber equipment obtains the information of adjacent cells that network side issues, and these information all are saved in the adjacent cell list.
Subscriber equipment can obtain described information of adjacent cells by system message or proprietary measurement control messages that network side issues.Described adjacent sub-district comprises: non-classified adjacent sub-district.Described information of adjacent cells includes but not limited to: the centre frequency of cell ID, adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.
Step 402: subscriber equipment is judged the measurement type of each adjacent sub-district.
If the measurement type of adjacent sub-district is a common frequency measurement, then adding its measurement type in the information of this neighbour sub-district correspondence is common frequency measurement; If the measurement type of adjacent sub-district is a different-frequency measure, then adding its measurement type in the information of adjacent sub-district correspondence is different-frequency measure.
Step 403: network side or subscriber equipment start to be measured, if started common frequency measurement, subscriber equipment is searched the sub-district that can carry out common frequency measurement according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof in adjacent cell list, if can common frequency measurement, then measure; If started different-frequency measure, subscriber equipment is searched the sub-district that can carry out different-frequency measure according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof in adjacent cell list, if can different-frequency measure, then measures.
With reference to Fig. 5, Fig. 5 shows the realization flow of the inventive method the 4th embodiment.
In this embodiment, the information of adjacent cells that network side does not issue, subscriber equipment oneself search, identification, measurement sub-district, and cell information is saved in the neighboring BS information of user equipment side.
This flow process may further comprise the steps:
Step 501: user equipment searches, discern adjacent sub-district.
Step 502: subscriber equipment is judged the measurement type of adjacent sub-district.
If the measurement type is a common frequency measurement, then information of adjacent cells is saved in the co-frequency neighbor cell list; If the measurement type is a different-frequency measure, then information of adjacent cells is saved in the iso-frequency adjacent community tabulation; Perhaps subscriber equipment adopts the method for step 402 noted earlier to preserve information of adjacent cells, i.e. not classification of the adjacent sub-district of user equipment side, but in adjacent cell list, increased the information of measuring type.
Described information of adjacent cells includes but not limited to: the centre frequency of cell ID, adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.
Step 503: network side or subscriber equipment start to be measured.
Subscriber equipment is measured according to the adjacent area type in the Neighboring Cell List, if started common frequency measurement, then if co-frequency neighbor cell then can carry out common frequency measurement; If started different-frequency measure, then if alien-frequency district then can measure.
If in step 502, adopted the method for step 302 noted earlier, also can adopt the method in the step 403 to measure at this.
In above-mentioned four embodiment, described common frequency measurement also can be the measurement that other nouns of same concept are represented, such as: the measurement that does not need to measure the space; Similarly, described different-frequency measure also can be the measurement that other nouns of same concept are represented, such as: the measurement that needs to measure the space.
As seen, utilize the present invention, can be under the LTE framework, make user equipment side safeguard neighboring BS information effectively, solve the problem that to safeguard neighboring BS information in the LTE system according to the mode in the existing 3G system, be selection, the gravity treatment of sub-district, and handoff procedure provides information accurately.
With reference to Fig. 6, Fig. 6 shows the theory diagram of terminal first embodiment of the present invention:
In this embodiment, terminal of the present invention comprises: receiving element 61, judging unit 62, maintenance unit 63, co-frequency neighbor cell list memory cell 64 and iso-frequency adjacent community list storage unit 65.Wherein, receiving element 61 is used to obtain the measurement type of network side indication and the information of adjacent cells that issues; Co-frequency neighbor cell list memory cell 64 is used to store co-frequency neighbor cell list information; Iso-frequency adjacent community list storage unit 65 is used to store the iso-frequency adjacent community list information; Judging unit 62 is determined the measurement type that can carry out each adjacent sub-district according to the measurement type and the described information of adjacent cells of network side indication; Maintenance unit 63 links to each other with judging unit 62 with receiving element 61 respectively, be used for the measurement type that can carry out each adjacent sub-district determined according to judging unit 61, each adjacent sub-district is write in corresponding the co-frequency neighbor cell list memory cell or iso-frequency adjacent community list storage unit.
The message that receiving element 61 receives from network side.Network side sending system message has comprised information of adjacent cells in this message.When terminal need be carried out cell selecting or gravity treatment, by the measuring unit (not shown) this sub-district is measured, according to measurement result, trigger measurement to adjacent sub-district.When terminal need be carried out the sub-district when switching, network side sending measuring control messages comprises the type (common frequency measurement or different-frequency measure) of measurement and information of adjacent cells etc. in the message, and this moment, terminal need be measured accordingly according to the indication of network side.
For the accuracy that guarantees to measure, after receiving element 61 is received the message of network side, at first by judging unit 62 according to the information of adjacent cells in the message, perhaps, determine the measurement type that can carry out each adjacent sub-district according to the measurement type and the information of adjacent cells of network side indication.Measure if co-frequency neighbor cell is determined to carry out in the adjacent sub-district that judging unit carries out common frequency measurement to network side indication, then by maintenance unit should the neighbour sub-district information be saved in the co-frequency neighbor cell list memory cell; If judging unit determines that can not carry out co-frequency neighbor cell to this neighbour sub-district measures, and then abandons its information.Measure if iso-frequency adjacent community is determined to carry out in the adjacent sub-district that judging unit carries out different-frequency measure to network side indication, then by maintenance unit should the neighbour sub-district information be saved in the iso-frequency adjacent community list storage unit; If judging unit determines that can not carry out iso-frequency adjacent community to this neighbour sub-district measures, and then abandons its information.
Like this, when needs are measured, the measurement type of the network side indication of being obtained according to receiving element by the measuring unit in the terminal is measured the adjacent sub-district of storing in the co-frequency neighbor cell list memory cell, perhaps the adjacent sub-district of storing in the iso-frequency adjacent community list storage unit is measured.
With reference to Fig. 7, Fig. 7 shows the theory diagram of terminal second embodiment of the present invention:
In this embodiment, terminal of the present invention comprises: receiving element 61, judging unit 72, adjacent cell list memory cell 73 and measuring unit 74.Wherein, receiving element 61 is used to obtain the measurement type of network side indication and the information of adjacent cells that issues; Adjacent cell list memory cell 73 is used to store the information of adjacent cells that described network side issues; Judging unit 72 is used for determining can carry out in the adjacent cell list the adjacent sub-district of corresponding measurement after receiving element is received the measurement indication of network side; Measuring unit 74 links to each other with judging unit 72, is used for common frequency measurement or different-frequency measure are carried out in the adjacent sub-district that judging unit is determined.
After receiving element is received the sending system message of network side or measured control messages, the information of adjacent cells in the message is write in the adjacent cell list memory cell.When terminal need be measured, at first determine can carry out in the adjacent cell list the adjacent sub-district of corresponding measurement by judging unit, concrete deterministic process can not repeat them here with reference to the description among front the inventive method second embodiment.Like this, measuring unit just can be measured accordingly to the adjacent sub-district that judging unit is determined.
In the present invention, also can after judging unit 72 is judged the measurement type of each adjacent sub-district, the measurement type information corresponding with this neighbour sub-district be added in the adjacent cell list.Like this, when network side or subscriber equipment startup measurement, directly in adjacent cell list, search the sub-district that to carry out common frequency measurement by measuring unit 74,, then measure if can common frequency measurement according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof; If started different-frequency measure, subscriber equipment is searched the sub-district that can carry out different-frequency measure according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof in adjacent cell list, if can different-frequency measure, then measures.
With reference to Fig. 8, Fig. 8 shows the theory diagram of terminal the 3rd embodiment of the present invention:
Be with the difference of terminal first embodiment of the present invention shown in Figure 6, in this embodiment, increased search unit 81, be used for search, discern adjacent sub-district.After searching adjacent sub-district, determine the measurement type that to carry out each adjacent sub-district according to information of adjacent cells by judging unit 62.If the measurement type is a common frequency measurement, then information of adjacent cells is saved in the co-frequency neighbor cell list by maintenance unit 63; If the measurement type is a different-frequency measure, then information of adjacent cells is saved in the iso-frequency adjacent community tabulation by maintenance unit 63.
Like this, when needs are measured, measure according to the adjacent area type in the Neighboring Cell List, if started common frequency measurement, then if co-frequency neighbor cell then can carry out common frequency measurement by the measuring unit in the terminal; If started different-frequency measure, then if alien-frequency district then can carry out different-frequency measure.
With reference to Fig. 9, Fig. 9 shows the theory diagram of terminal the 4th embodiment of the present invention:
Be with the difference of terminal second embodiment of the present invention shown in Figure 7, in this embodiment, increased search unit 81, be used for search, discern adjacent sub-district.After searching adjacent sub-district, information of adjacent cells is write in the adjacent cell list memory cell.When terminal need be measured, at first by the adjacent sub-district that can carry out corresponding measurement in judging unit 72 definite adjacent cell lists, concrete deterministic process can not repeat them here with reference to the description among front the inventive method second embodiment.Like this, measuring unit just can be measured accordingly to the adjacent sub-district that judging unit is determined.
Certainly, also can after judging unit 72 is judged the measurement type of each adjacent sub-district, the measurement type information corresponding with this neighbour sub-district be added in the adjacent cell list.Like this, when network side or subscriber equipment startup measurement, directly in adjacent cell list, search the sub-district that to carry out common frequency measurement by measuring unit 74,, then measure if can common frequency measurement according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof; If started different-frequency measure, subscriber equipment is searched the sub-district that can carry out different-frequency measure according to the information of adjacent sub-district in the adjacent cell list and corresponding measurement type thereof in adjacent cell list, if can different-frequency measure, then measures.
As seen from the above-described embodiment, utilize terminal of the present invention, can be under the LTE framework, maintaining information of adjacent cells effectively.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (21)
1. the method for maintaining information of adjacent cells in the long evolving system is characterized in that described method comprises step:
Subscriber equipment obtains information of adjacent cells;
The definite measurement type that can carry out adjacent sub-district;
The measurement type that can carry out according to each adjacent sub-district should the neighbour sub-district information be saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation.
2. the method for claim 1 is characterized in that, the step that described subscriber equipment obtains information of adjacent cells is specially:
Subscriber equipment obtains the information of adjacent cells that network side issues by system message or proprietary measurement control messages that network side issues; Perhaps
Subscriber equipment obtains information of adjacent cells by search.
3. method according to claim 1 is characterized in that, describedly determines that the step of the measurement type that can carry out adjacent sub-district is specially:
According to described information of adjacent cells, perhaps, determine the measurement type that to carry out adjacent sub-district according to the measurement type of described information of adjacent cells and network side indication.
4. the method for claim 1 is characterized in that,
Described adjacent sub-district comprises: classified adjacent sub-district and/or non-classified adjacent sub-district;
Described information of adjacent cells comprises: the centre frequency of cell ID, adjacent sub-district, the bandwidth of operation of adjacent sub-district are or/and the frequency range of the adjacent sub-district that subscriber equipment need be measured.
5. method according to claim 4 is characterized in that, describedly determines that the step of the measurement type that can carry out each adjacent sub-district comprises:
If the adjacent sub-district that issues of network side is unfiled, the frequency range of the adjacent sub-district that subscriber equipment is measured according to the bandwidth of operation and/or the subscriber equipment needs of the centre frequency of adjacent sub-district, adjacent sub-district is determined the measurement type of this neighbour sub-district.
6. method according to claim 5 is characterized in that, the step that the information that the described measurement type that can carry out according to each adjacent sub-district should the neighbour sub-district is saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation comprises:
To the adjacent sub-district of network side indication carrying out common frequency measurement, if subscriber equipment determines that can carry out co-frequency neighbor cell to this neighbour sub-district measures, and then is saved in its information in the described co-frequency neighbor cell list; If subscriber equipment determines that can not carry out co-frequency neighbor cell to this neighbour sub-district measures, and then abandons its information;
To the adjacent sub-district of network side indication carrying out different-frequency measure,, then its information is saved in the described iso-frequency adjacent community tabulation if subscriber equipment determines that can carry out iso-frequency adjacent community to this neighbour sub-district measures; If subscriber equipment determines that can not carry out iso-frequency adjacent community to this neighbour sub-district measures, and then abandons its information.
7. according to claim 5 or 6 described methods, it is characterized in that the step that the information that the described measurement type that can carry out according to each adjacent sub-district should the neighbour sub-district is saved in corresponding co-frequency neighbor cell list or the iso-frequency adjacent community tabulation also comprises:
To classified adjacent sub-district,, then its information is saved in the described co-frequency neighbor cell list if should the neighbour sub-district be co-frequency neighbor cell; If should the neighbour sub-district be iso-frequency adjacent community, then its information be saved in the described iso-frequency adjacent community tabulation.
8. method according to claim 1 is characterized in that, described method also comprises:
When the measurement type of described network side indication is common frequency measurement, each the adjacent sub-district in the described co-frequency neighbor cell list is measured;
When the measurement type of described network side indication is different-frequency measure, each the adjacent sub-district in the described iso-frequency adjacent community tabulation is measured.
9. the method for maintaining information of adjacent cells in the long evolving system is characterized in that described method comprises step:
Subscriber equipment obtains information of adjacent cells, and all is saved in these information in the adjacent cell list;
After starting measurement, subscriber equipment determines can carry out in the described adjacent cell list the adjacent sub-district of corresponding measurement.
10. method according to claim 9 is characterized in that, the step that described subscriber equipment obtains information of adjacent cells is specially:
Subscriber equipment obtains the information of adjacent cells that network side issues by system message or proprietary measurement control messages that network side issues; Perhaps
Subscriber equipment obtains information of adjacent cells by search.
11. method according to claim 9 is characterized in that, described method further comprises:
Before starting measurement, subscriber equipment is judged the measurement type of each adjacent sub-district, and adds the indication information of corresponding measurement type in Neighboring Cell List according to judged result.
12. method according to claim 11 is characterized in that, described equipment determines that the step that can carry out the adjacent sub-district of corresponding measurement in the described adjacent cell list is specially:
The adjacent sub-district that subscriber equipment determines to carry out corresponding measurement according to the measurement type of adjacent sub-district in the adjacent cell list and correspondence thereof.
13. according to each described method of claim 9 to 12, it is characterized in that,
Subscriber equipment starts measurement or starts measurement voluntarily according to the measurement indication of network side.
14., it is characterized in that described method also comprises according to each described method of claim 9 to 12:
Subscriber equipment carries out common frequency measurement or different-frequency measure to the adjacent sub-district of determining.
15. a terminal is characterized in that, comprising:
Receiving element is used to obtain the measurement type of network side indication and the information of adjacent cells that issues;
The co-frequency neighbor cell list memory cell is used to store co-frequency neighbor cell list information;
Iso-frequency adjacent community list storage unit is used to store the iso-frequency adjacent community list information;
Judging unit is used for according to described information of adjacent cells, perhaps according to the measurement type and the described information of adjacent cells of network side indication, determines the measurement type that can carry out each adjacent sub-district;
Maintenance unit is used for the measurement type that can carry out each adjacent sub-district determined according to described judging unit, and each adjacent sub-district is write in corresponding the co-frequency neighbor cell list memory cell or iso-frequency adjacent community list storage unit.
16. terminal according to claim 15 is characterized in that,
Measure if co-frequency neighbor cell is determined to carry out in the adjacent sub-district that described judging unit carries out common frequency measurement to network side indication, then by described maintenance unit should the neighbour sub-district information be saved in the described co-frequency neighbor cell list memory cell; If described judging unit determines that can not carry out co-frequency neighbor cell to this neighbour sub-district measures, and then abandons its information;
Measure if iso-frequency adjacent community is determined to carry out in the adjacent sub-district that described judging unit carries out different-frequency measure to network side indication, then by described maintenance unit should the neighbour sub-district information be saved in the described iso-frequency adjacent community list storage unit; If described judging unit determines that can not carry out iso-frequency adjacent community to this neighbour sub-district measures, and then abandons its information.
17. terminal according to claim 15 is characterized in that, described terminal also comprises:
Search unit links to each other with described judging unit, be used for search, discern adjacent sub-district, and the adjacent sub-district that will search sends described judging unit to.
18., it is characterized in that described terminal also comprises according to claim 15 or 17 described terminals:
Measuring unit, the adjacent sub-district that the measurement type that the network side that is used for obtaining according to described receiving element is indicated is stored the co-frequency neighbor cell list memory cell is measured, and perhaps the adjacent sub-district of storing in the iso-frequency adjacent community list storage unit is measured.
19. a terminal is characterized in that, comprising:
Receiving element is used to obtain the measurement type of network side indication and the information of adjacent cells that issues;
The adjacent cell list memory cell is used to store the information of adjacent cells that described network side issues;
Judging unit is used for determining can carry out in the described adjacent cell list the adjacent sub-district of corresponding measurement after described receiving element is received the measurement indication of network side.
20. terminal according to claim 19 is characterized in that, described terminal also comprises:
Search unit links to each other with described judging unit, be used for search, discern adjacent sub-district, and the information of the adjacent sub-district that will search sends described judging unit to.
21., it is characterized in that described terminal also comprises according to claim 19 or 20 described terminals:
Measuring unit links to each other with described judging unit, is used for common frequency measurement or different-frequency measure are carried out in the adjacent sub-district that described judging unit is determined.
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|---|---|---|---|
| CNA2006101452694A CN101193399A (en) | 2006-11-24 | 2006-11-24 | Method and terminal for maintaining information of adjacent cells in long-term evolving system |
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| CNA2006101452694A CN101193399A (en) | 2006-11-24 | 2006-11-24 | Method and terminal for maintaining information of adjacent cells in long-term evolving system |
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| CN101193399A true CN101193399A (en) | 2008-06-04 |
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| CNA2006101452694A Pending CN101193399A (en) | 2006-11-24 | 2006-11-24 | Method and terminal for maintaining information of adjacent cells in long-term evolving system |
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