CN101877902A - Scanning method based on multi-carrier system - Google Patents
Scanning method based on multi-carrier system Download PDFInfo
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- CN101877902A CN101877902A CN2009101357674A CN200910135767A CN101877902A CN 101877902 A CN101877902 A CN 101877902A CN 2009101357674 A CN2009101357674 A CN 2009101357674A CN 200910135767 A CN200910135767 A CN 200910135767A CN 101877902 A CN101877902 A CN 101877902A
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Abstract
The invention discloses a scanning method based on a multi-carrier system. In the method, a service base station of a terminal informs a terminal of carrying out carrier scanning by a scanning message, wherein the scanning message comprises at least one of radio-frequency channel information scanned by the terminal and one or a plurality of carriers needing to be scanned by the terminal. The technical scheme of the invention provides a carrier scanning method based on a multi-carrier system, which enables the terminal to finish scanning on a plurality of carriers of a plurality of base stations in the multi-carrier system and provides a reasonable reference value for carrier switching in and among the base stations of the terminal.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of scan method based on multicarrier system.
Background technology
802.16m system is based on the multicarrier system that OFDM inserts (Orthogonal FrequencyDivision Multiplex Access abbreviates OFDMA as) technology, and is the evolution system of 802.16e system.Fig. 1 is the protocol infrastructure schematic diagram of multicarrier system, and as shown in Figure 1, single medium access control entity (MediaAccess Control abbreviates MAC as) can be controlled the physical layer (Physical abbreviates PHY as) that comprises a plurality of channels.For example, comprise channel 1, channel 2... channel N among the PHY, and, the bandwidth of each channel can be different, as the bandwidth of channel 1 is that the bandwidth of 5MHz, channel 2 is 10MHz, and the bandwidth of channel N is 20MHz, and, the bandwidth of each channel can be continuous frequency band, also can be discontinuous frequency band.
And, 802.16m can comprise one or more full configuration carrier waves (Fullyconfigured carrier) and one or more part configuration carrier wave (Partially configured carrier) that is used for downlink transfer in the system, wherein, full configuration carrier wave is used to carry following control information: synchronically controlling information, broadcast control information, control information of multicast and clean culture control information, can also carry the information and the parameter that relate to multicarrier and other carrier operation, part disposes carrier wave and is used to carry all control channels of supporting downlink transfer.Full configuration carrier wave can be used as the main carrier or the auxilliary carrier wave of terminal, and part disposes the auxilliary carrier wave that carrier wave only can be used as terminal.In a sub-district, each terminal is corresponding to a main carrier, and can be corresponding to one or more auxilliary carrier waves, also can not assist carrier wave, wherein, main carrier is used to carry the business of terminal and physical layer control information and media access control layer control information, for example network insertion of carrying control terminal operation, auxilliary carrier wave is used to carry the base station and is the transport service of terminal distribution by specific order and rule, and also can carry the control signaling of supporting multi-carrier operation on the auxilliary carrier wave.
In the 802.16e system, along with the decline of channel or the increase of carrier load, terminal can stop and being connected of Current Serving BTS, and switches on the carrier wave of other base stations, to obtain better service quality (Quality of Service abbreviates QoS as).Before switching, terminal can scan the carrier wave of serving BS and neighbor base station, obtains the channel quality of a plurality of carrier waves, switches to select suitable target BS.At present, provide terminal in the 802.16e system that the channel quality of neighbor base station is carried out method for scanning, and can the time carry out association in scanning, terminal is obtained and record ranging parameters and useful business information, for the select target base station, switch the condition that provides to target BS.In scanning process, be associated as optional initiating ranging process, the type of scanning can comprise: the association of scanning (onrelevant), no base station collaboration, the association of base station collaboration and network cooperation related.
For the scan method of 802.16m multicarrier system, do not provide concrete solution in the existing technical scheme.
Summary of the invention
Considering in the correlation technique can't be to the problem that scans of 802.16m multicarrier system and propose the present invention, and for this reason, main purpose of the present invention is to provide a kind of scan method based on multicarrier system, to address the above problem.
According to an aspect of the present invention, provide a kind of scan method based on multicarrier system.
Scan method based on multicarrier system according to the present invention comprises: the serving BS of terminal carries out carrier scanning by scanning message informing terminal, wherein, scanning message comprise following one of at least: one or more carrier waves that the radio-frequency channel information that terminal scans, terminal need scan.
By above-mentioned at least one technical scheme of the present invention, carrier scanning method based on multicarrier system is provided, make terminal can in multicarrier system, finish the scanning on a plurality of carrier waves of a plurality of base stations, provide rational reference value for carrier wave in the base station of terminal and between the base station switches.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the framework schematic diagram according to the multicarrier system of correlation technique;
Fig. 2 is the flow chart that carrier waves in base station is scanned according to the single-call DTE by the base station initiation of the embodiment of the invention;
Fig. 3 is the flow chart according to the carrier waves in base station scanning of the multichannel terminal of being initiated by the base station of the embodiment of the invention;
Fig. 4 is the flow chart that carrier waves in base station is scanned according to the single-call DTE by the terminal initiation of the embodiment of the invention;
Fig. 5 is the flow chart according to the carrier waves in base station scanning of the multichannel terminal of being initiated by terminal of the embodiment of the invention.
Embodiment
Functional overview
At present, in multicarrier system, because channel fading can cause service quality (Qualityof Service, abbreviate QoS as) decline, at this moment, the terminal of cell edge can stop and being connected of Current Serving BTS, switch on the carrier wave of adjacent base station, to obtain better QoS; Along with the increase of traffic carrying capacity and the introducing of new business, can cause the carrier load at user place of center of housing estate overweight, if other carrier loads of this user's serving BS are less, the user can switch on other carrier waves of serving BS to guarantee system load balancing.In addition, the different carrier of discontinuous frequency band may produce decline in various degree, if the carrier channel degradation at user place, other channel qualities that user's carrier wave also can switch to serving BS satisfy user's QoS demand preferably on the carrier wave.Based on this, the invention provides a kind of scan method based on multicarrier system, switch for the base station of terminal and prepare.
Describe the present invention in detail below in conjunction with accompanying drawing.
Method embodiment
According to the embodiment of the invention, provide a kind of scan method based on multicarrier system.
The scan method based on multicarrier system according to present embodiment comprises: the serving BS of terminal carries out carrier scanning by scanning message informing terminal, wherein, scanning message comprise following one of at least: one or more carrier waves that the radio-frequency channel information that terminal scans, terminal need scan.Afterwards, terminal just can and utilize radio-frequency channel indicated in the information of radio-frequency channel that one or more carrier waves are scanned according to scanning message.Preferably, the base station can will be scanned message and send to this terminal by the main carrier of terminal.
Preferably, scanning message can further include following one of at least: report value type, scan type that scanning time started, sweep spacing, scanning result report rule, need report.Wherein, the report value type can comprise following one of at least: carrier-in-interference noise ratio, the indication of received signal intensity, relative delay, round-trip delay.
In addition, in passage that terminal scans and the terminal employed radio-frequency channel of communicating by letter with serving BS is (to that is to say under the situation of same passage, terminal only has a radio-frequency channel, this passage both had been used for the proper communication between terminal and the base station, also be used for the scanning of terminal), scanning message can also comprise non-sweep spacing and number of repetition.
Wherein, in the scanning message indicated scan type can comprise following one of at least: only scan, do not have the association of base station collaboration, the association of base station collaboration, the association of network cooperation.
For each base station that terminal need scan, serving BS need be notified to terminal with the scan type of these base stations that need scan.And, each base station that need scan for terminal, scan type of all carrier waves is identical or different on it, that is to say, all carrier waves can adopt with a kind of scan mode on this base station, also can be that different carrier waves adopts different scan mode (for example, portion of carriers adopts scan mode 1, and another part carrier wave adopts scan mode 2).
In addition, if scan type is association or the association of base station collaboration or the association of network cooperation of no base station collaboration, then scan message and can also comprise related information, wherein, related information specifically can comprise: related rank, the moment of carrying out association, related special ranging sign indicating number and the special ranging resource information of using of execution.
At this moment, terminal can be according to related information, on the predetermined special ranging resource that is engraved in carrier wave to be scanned when related to base station transmission special ranging sign indicating number under this terminal is carried out related carrier wave; When scan type is network cooperation related, above-mentioned base station can send the range finding result of terminal by backbone network to serving BS, wherein, the range finding result comprises: terminal has been carried out the service that time adjustment information, frequency adjustment information, power adjustment information, distance measuring states, carrier wave on the carrier wave of network coordination association can provide etc.; At last, serving BS can send to terminal with the range finding result.
In addition, one or more carrier waves that terminal need scan can comprise: serving BS is determined the bit diagram of the base station that terminal need scan and/or the sign of base station, and then terminal is utilized the radio-frequency channel that one or more carrier waves are scanned to comprise: terminal scans the part or all of carrier wave of the base station of the sign correspondence of the bit diagram of base station and/or base station; And/or, serving BS need under the base station of sign correspondence of the bit diagram of the sign of the bit diagram of the base station that terminal need scan and/or base station and this base station and/or base station to determine the sign of the carrier wave that scans, and then terminal is utilized the radio-frequency channel that one or more carrier waves are scanned to comprise: terminal to the base station of the sign correspondence of the bit diagram of base station and/or base station down the carrier wave corresponding with carrier identification scan.
Before the serving BS terminal is carried out carrier scanning by scanning message informing terminal, terminal can be obtained the configuration information of carrier wave, detailed process is as follows: terminal is obtained the carrier configuration information of serving BS and the carrier set information that the service base station assigns is given terminal by broadcast message, wherein, carrier configuration information comprises: the configuration information of the physics frequency point information of the one or more available carrier wave in the serving BS and sign, each available carrier wave; Terminal is obtained the carrier configuration information of neighbor base station by the adjacent area broadcast message, wherein, neighbor base station is meant: the collection of base stations adjacent with serving BS, carrier configuration information comprises: the configuration information of the physics frequency point information of the one or more available carrier wave in the neighbor base station and sign, each available carrier wave.
And, serving BS need can select one or more carrier waves of scanning in intended carriers, wherein, the intended carriers here can comprise following one of at least: under the serving BS terminal support and current untapped all the full configuration carrier waves of terminal and all parts configuration carrier waves in all the full configuration carrier waves of part or all of carrier wave, neighbor base station and part dispose part or all of carrier wave in part or all of carrier wave in the carrier wave, the base station that terminal is known Base Station Identification.
In embodiments of the present invention, scanning can be initiated by the base station, also can be initiated by terminal, will be described respectively these two kinds different initiation modes below:
(mode one) initiates scanning by terminal
Terminal finds to satisfy preset trigger condition, sends scan request message to serving BS, and serving BS sends scanning message according to scan request message to terminal, and this scanning message can be thought the response message of scan request message;
(mode two) initiates scanning by the base station
Serving BS finds to satisfy preset trigger condition, sends scan request message to terminal, scans with triggering terminal.
In aforesaid way one and mode two, serving BS need at first be provided with preset trigger condition, wherein, preset trigger condition comprises one of following: the measured value of the carrier wave of the current use of terminal is less than or equal to the load value of carrier wave of predetermined measurement value thresholding, the current use of terminal more than or equal to predetermined load value thresholding.
And for the carrier wave that belongs to serving BS, the preset trigger condition of the carrier wave of its preset trigger condition and other base stations (can be the base station of sub-district in the Neighboring Cell List of this serving BS) is same to each other or different to each other; Wherein, preset trigger condition and the scanning that scanning belongs to the carrier wave of serving BS belongs to mutually the same being meant of preset trigger condition of carrier wave of other base stations: the predetermined measurement value thresholding of the predetermined measurement value thresholding during the scanning base station when scanning other base stations equates, perhaps, the predetermined load value thresholding of the predetermined load value thresholding of scanning during the base station when scanning other base stations equates.
For example, for the carrier wave that belongs to serving BS, its preset trigger condition is set to predetermined measurement value thresholding A, and/or predetermined load value thresholding B, the preset trigger condition of the carrier wave under other base stations can be identical with the trigger condition of the carrier wave of serving BS, that is,, think that then the trigger condition of these other base stations is identical with the trigger condition of serving BS if the preset trigger condition of other base stations is A and/or predetermined load value thresholding B for the predetermined measurement value thresholding; In addition, if the predetermined measurement value thresholding is not that A and/or predetermined load value thresholding are not B in the preset trigger condition of other base stations, then other base stations are different with the preset trigger condition of serving BS.
For aforesaid way one, if scanning is initiated by terminal, terminal need be with the parameter information of the scanning of its hope by scan request message, and scan request message comprises that following information one of at least: terminal is wished the non-sweep spacing that one or more base stations that sign, the terminal of the radio-frequency channel that is used to scan wish to scan, sweep spacing, terminal that terminal is wished wish, the number of repetition that terminal is wished, the scan type that terminal is wished.
Wherein, wish the bit diagram of the base station scanned and/or the sign of base station for terminal, terminal can utilize the radio-frequency channel that one or more carrier waves are scanned, and specifically comprises: terminal scans the part or all of carrier wave of the base station of the sign correspondence of the bit diagram of base station and/or base station; And/or,
Terminal need under the base station of sign correspondence of the bit diagram of the sign of the bit diagram of the base station scanned and/or base station and this base station and/or base station to wish the sign of the carrier wave that scans, and then terminal is utilized the radio-frequency channel that one or more carrier waves are scanned to comprise: terminal to the base station of the sign correspondence of the bit diagram of base station and/or base station down the carrier wave corresponding with carrier identification scan.
Each base station for terminal request scanning, the scan type of all carrier waves is same to each other or different to each other on this base station of terminal request, for example, terminal can ask the portion of carriers in this base station to adopt scan mode 1 to scan, and another part carrier wave in this base station adopts scan mode 2 to scan.
It should be noted that, no matter employing mode one or employing mode two are (promptly, no matter initiate scanning or give serving BS with driver sweep with the sweep parameter of its expectation by the scanning message informing by serving BS) by terminal, final terminal required relevant parameter when scanning is determined by serving BS, that is the parameter of carrying in the scan request message that serving BS may not adopt terminal to send.
In addition, in the method, terminal can be carried out capability negotiation with serving BS, and in the process of capability negotiation the radio-frequency channel of this terminal sign is notified to serving BS; Serving BS will be preserved the map information of the carrier wave of the radio-frequency channel of the map information of radio-frequency channel sign of the sign of terminal and notice and terminal work at present and terminal work at present.
After the end of scan, terminal can report rule by the main carrier of terminal scanning result to be sent to serving BS according to scanning result, wherein, scanning result comprises: the measurement result after Report mode, report value type and terminal scan one or more carrier waves; Serving BS is a terminal select target carrier wave according to scanning result.
By the technical scheme that the embodiment of the invention provides, make terminal can in multicarrier system, finish the scanning on a plurality of carrier waves of a plurality of base stations, for switching, carrier wave in the base station of terminal and between the base station provides rational reference value.
Describe according to scan request message in the method for present embodiment or scanning response message below in conjunction with instantiation.Wherein, in the described hereinafter multiple message format, can not specify for the partial parameters in scan request message or the scanning response message.
Table 1 is an example according to the scanning carrier list of scan request message correspondence of the present invention, in this example, can scan type be set respectively to each carrier wave of neighbor base station, carrier wave to serving BS all adopts uncorrelated scanning (promptly, scan type for the carrier wave of the scan type of the carrier wave of serving BS and neighbor base station is inequality, and the different carrier in neighbor base station may be corresponding to different scan types).Particularly, opening in the scan request message of single pass terminal (single-radio MS) needs to be provided with sweep spacing, non-sweep spacing and number of repetition, at this moment, whole scanning duration be sweep spacing and non-sweep spacing and with the product of number of repetition; The scan request message of opening multichannel terminal (multi-radio MS) can not be provided with non-sweep spacing and number of repetition, and at this moment, whole scanning duration is exactly the value of sweep spacing.
Table 1
Table 2 is another examples according to the scanning carrier list of scan request message correspondence of the present invention, among this embodiment, all carrier waves to neighbor base station are provided with identical scan type, carrier wave to serving BS all adopts uncorrelated scanning (promptly, whole carrier waves in all neighbor base stations are provided with identical scan type, the set scan type of all carrier waves of serving BS is identical, and the scan type that is provided with for the carrier wave of serving BS may be inequality with the scan type that the carrier wave to neighbor base station is provided with).Particularly, opening in the scan request message of single pass terminal needs to be provided with sweep spacing, non-sweep spacing and number of repetition, and the scan request message of opening multichannel terminal can not be provided with non-sweep spacing and number of repetition.
Table 2
Table 3 is examples according to the scanning carrier list of scanning response message correspondence of the present invention, among this embodiment, carrier wave to neighbor base station has adopted identical scan type, carrier wave to serving BS all adopts uncorrelated scanning (promptly, whole carrier waves in all neighbor base stations are provided with identical scan type, the set scan type of all carrier waves of serving BS is identical, and the scan mode that is provided with for the carrier wave of serving BS may be inequality with the scan type that the carrier wave to neighbor base station is provided with).Same report value type is all adopted in all base stations.Particularly, during the single-call DTE, need to be provided with sweep spacing, non-sweep spacing and number of repetition in the scanning message, during multichannel terminal, non-sweep spacing and number of repetition can be set.
Table 3
Table 4 is another examples according to the scanning carrier list of scanning response message correspondence of the present invention, among this embodiment, the carrier wave of serving BS and neighbor base station is all adopted uncorrelated scanning.Same report value type is all adopted in all base stations.
Table 4
Table 5 is that serving BS according to the present invention is reported pairing tabulation to the association that terminal sends.
Table 5
Table 6 is pairing tabulations of scan report message that terminal according to the present invention sends to serving BS, after scanning is finished, terminal is according to reporting rule that scanning result is reported to the base station, this result is as one of base station reference value when the select target carrier wave, in this embodiment, the measured carrier wave to each measured base station all reports.
Table 6
Below in conjunction with instantiation scan method of the present invention is elaborated.
Example 1
Fig. 2 is according to the flow chart of the carrier waves in base station scanning of single-call DTE of being initiated by the base station of the present invention, as shown in Figure 2, comprises the steps:
Step 3, the above-mentioned scanning time started is when arriving, terminal scans each carrier wave in the carrier list of needs scanning in sweep spacing by above-mentioned injection frequency passage, and particularly, the information in the report value type that terminal reports as required scans carrier wave; And, when the scanning duration reaches, finish scanning communicating by letter of non-sweep spacing continuation and serving BS.
Step 4 reports rule according to predetermined, and terminal reports the base station with scanning result.
By above-mentioned processing, realized of the scanning of single-call DTE carrier wave to other carrier waves in the base station.
Example 2
Fig. 3 is the serving BS intercarrier scanning flow chart of multichannel terminal of being initiated by serving BS of the present invention, comprises the steps:
Step 3, in the predetermined scanning time started, terminal utilizes a passage that intended carriers is scanned in sweep spacing, and keeps on another passage and the contact of serving BS.When the scanning duration reaches predetermined value, finish scanning.
Step 4 reports rule according to predetermined, and terminal reports the base station with scanning result.
By above-mentioned processing, realized of the scanning of multichannel terminal carrier wave to other carrier waves in the base station.
Example 3
Fig. 4 is the flow chart that the serving BS intercarrier is scanned according to single-call DTE of being initiated by terminal of the present invention.
Step 3, serving BS responds terminal according to the request message of terminal, except that the sweep parameter that terminal asks is set, and the parameters such as related information when needing in response message, be provided with the report value type that reports rule, need report, scan type, the scanning of scanning result;
Step 4, in the predetermined scanning time started, terminal scans intended carriers in sweep spacing, communicating by letter of non-sweep spacing continuation and serving BS, when the scanning duration reaches predetermined value, finishes scanning.
Step 4 reports rule according to predetermined, and terminal reports the base station with scanning result.
By above-mentioned processing, realized of the scanning of single-call DTE carrier wave to other carrier waves in the base station.
Example 4
Fig. 5 is the flow chart according to the serving BS intercarrier scanning of multichannel terminal of being initiated by terminal of the present invention
Step 3, serving BS responds terminal according to the request message of terminal, except that the sweep parameter that terminal asks is set, and the parameters such as related information when needing in response message, be provided with the report value type that reports rule, need report, scan type, the scanning of scanning result;
Step 4, in the predetermined scanning time started, terminal utilizes a passage that intended carriers is scanned in sweep spacing, and keeps on another passage and the contact of serving BS.When the scanning duration reaches predetermined value, finish scanning.
Step 5 reports rule according to predetermined, and terminal reports the base station with scanning result.
By above-mentioned processing, realized of the scanning of multichannel terminal carrier wave to other carrier waves in the base station.
In sum, by means of technical scheme of the present invention,, make terminal can in multicarrier system, carry out the seamless switching between carrier waves in base station by carrier waves in base station changing method of the present invention, and guaranteed that terminal traffic is successional, eliminated the carrier wave time delay for switching.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 (21)
1. the scan method based on multicarrier system is characterized in that, comprising:
The serving BS of terminal carries out carrier scanning by scanning message informing described terminal, wherein, described scanning message comprise following one of at least: one or more carrier waves that the radio-frequency channel information that described terminal scans, described terminal need scan.
2. method according to claim 1 is characterized in that, described method also comprises:
Described terminal utilizes radio-frequency channel indicated in the information of described radio-frequency channel that described one or more carrier waves are scanned according to described scanning message.
3. method according to claim 1 is characterized in that, described scanning message also comprise following one of at least: report value type, scan type that scanning time started, sweep spacing, scanning result report rule, need report.
4. method according to claim 3, it is characterized in that, in passage that described terminal scans and the described terminal employed radio-frequency channel of communicating by letter with described serving BS is under the situation of same passage, and described scanning message also comprises non-sweep spacing and number of repetition.
5. method according to claim 3 is characterized in that, described scan type comprise following one of at least: only scan, do not have the association of base station collaboration, the association of base station collaboration, the association of network cooperation.
6. method according to claim 5, it is characterized in that described serving BS is indicated the pairing scan type of carrier wave in each base station that needs scanning to described terminal, wherein, for each base station of described serving BS indication, scan type of all carrier waves is identical or different on it.
7. method according to claim 5, it is characterized in that, if scan type is association or the association of base station collaboration or the association of network cooperation of no base station collaboration, then described scanning message also comprises related information, wherein, described related information comprises: related rank, the moment of carrying out association, related special ranging sign indicating number and the special ranging resource information of using of execution.
8. method according to claim 7 is characterized in that, described method also comprises:
Described terminal in the related moment predetermined, sends described special ranging sign indicating number to carrying out related association base station with described terminal according to described related information on described special ranging resource;
When described scan type is network cooperation related, described association base station sends the range finding result of described terminal to described serving BS by backbone network, wherein, described range finding result comprises: described terminal has been carried out the service that time adjustment information, frequency adjustment information, power adjustment information, distance measuring states, carrier wave on the carrier wave of network coordination association can provide;
Described serving BS sends to described terminal with described range finding result.
9. method according to claim 3 is characterized in that, described report value type comprise following one of at least: carrier-in-interference noise ratio, the indication of received signal intensity, relative delay, round-trip delay.
10. method according to claim 1 is characterized in that, one or more carrier waves that described terminal need scan comprise:
Described serving BS is determined the bit diagram of the base station that described terminal need scan and/or the sign of base station, and then described terminal is utilized described radio-frequency channel that described one or more carrier waves are scanned to comprise: described terminal scans the part or all of carrier wave of the base station of the sign correspondence of the bit diagram of described base station and/or base station; And/or,
Described serving BS need under the base station of sign correspondence of the bit diagram of the sign of the bit diagram of the base station that described terminal need scan and/or base station and this base station and/or base station to determine the sign of the carrier wave that scans, and then described terminal is utilized described radio-frequency channel that described one or more carrier waves are scanned to comprise: described terminal to the base station of the sign correspondence of the bit diagram of described base station and/or base station down the carrier wave corresponding with described carrier identification scan.
11., it is characterized in that before described serving BS terminal was carried out carrier scanning by scanning message informing terminal, described method also comprised according to each described method in the claim 1 to 10:
Described terminal is obtained the carrier configuration information of described serving BS and the carrier set information that described serving BS is distributed to described terminal by broadcast message, wherein, described carrier configuration information comprises: the configuration information of the physics frequency point information of the one or more available carrier wave in the described serving BS and sign, each available carrier wave;
Described terminal is obtained the carrier configuration information of neighbor base station by the adjacent area broadcast message, wherein, described neighbor base station is meant: the collection of base stations adjacent with described serving BS, described carrier configuration information comprises: the configuration information of the physics frequency point information of the one or more available carrier wave in the described neighbor base station and sign, each available carrier wave.
12. method according to claim 11 is characterized in that, described method also comprises:
Described serving BS need to select one or more carrier waves of scanning in intended carriers, wherein, described intended carriers comprise following one of at least: under the described serving BS described terminal support and current untapped all the full configuration carrier waves of described terminal and all parts configuration carrier waves in all the full configuration carrier waves of part or all of carrier wave, described neighbor base station and part dispose the part or all of carrier wave in the carrier wave, described terminal and know part or all of carrier wave in the base station of Base Station Identification.
13., it is characterized in that described serving BS comprises by the described terminal of described scanning message informing according to each described method in the claim 1 to 10: described serving BS sends to described terminal by the main carrier of described terminal with described scanning message.
14., it is characterized in that the base station is carried out carrier scanning by scanning message informing terminal and comprised according to each described method in the claim 1 to 10:
Described terminal finds to satisfy preset trigger condition, sends scan request message to described serving BS, and described serving BS sends described scanning message according to described scan request message to described terminal; Perhaps,
Described serving BS is found to satisfy preset trigger condition, sends described scan request message to described terminal.
15. method according to claim 14 is characterized in that, described method also comprises:
Described serving BS is provided with described preset trigger condition, wherein, described preset trigger condition comprises one of following: the measured value of the carrier wave of the current use of described terminal is less than or equal to the load value of carrier wave of predetermined measurement value thresholding, the current use of described terminal more than or equal to predetermined load value thresholding.
16. method according to claim 15 is characterized in that,
Described terminal scanning belongs to the preset trigger condition of carrier wave of described serving BS and the preset trigger condition that described terminal scanning belongs to the carrier wave of other base stations is same to each other or different to each other;
Wherein, preset trigger condition and the scanning that scanning belongs to the carrier wave of described serving BS belongs to mutually the same being meant of preset trigger condition of carrier wave of described other base stations: the predetermined measurement value thresholding of the predetermined measurement value thresholding when scanning described base station when scanning described other base stations equates, predetermined load value thresholding during described other base stations of the predetermined load value thresholding when perhaps, scanning described base station and scanning equates.
17. method according to claim 14, it is characterized in that described scan request message comprises that following information one of at least: described terminal is wished the number of repetition that the sweep spacing of wishing of wishing the one or more carrier waves that scan, described terminal of sign, the terminal of the radio-frequency channel that is used to scan, the non-sweep spacing that described terminal is wished, described terminal wish, the scan type that described terminal is wished.
18. method according to claim 17 is characterized in that, described terminal wishes that the one or more carrier waves that scan comprise:
Described terminal is wished the bit diagram of the base station scanned and/or the sign of base station, and then described terminal is utilized described radio-frequency channel that described one or more carrier waves are scanned to comprise: described terminal scans the part or all of carrier wave of the base station of the sign correspondence of the bit diagram of described base station and/or base station; And/or,
Described terminal need under the base station of sign correspondence of the bit diagram of the sign of the bit diagram of the base station scanned and/or base station and this base station and/or base station to wish the sign of the carrier wave that scans, and then described terminal is utilized described radio-frequency channel that described one or more carrier waves are scanned to comprise: described terminal to the base station of the sign correspondence of the bit diagram of described base station and/or base station down the carrier wave corresponding with described carrier identification scan.
19. method according to claim 18, it is characterized in that, for each base station of described terminal request scanning, to be same to each other or different to each other, to ask all carrier waves of a base station be the scan type that same scan type or each carrier wave of asking a base station have oneself to the scan type of all carrier waves on this base station of described terminal request.
20., it is characterized in that described method also comprises according to each described method in the claim 1 to 10:
Terminal and described serving BS carry out capability negotiation, and in the process of described capability negotiation the radio-frequency channel of this terminal sign are notified to described serving BS;
Described serving BS will be preserved the map information of the carrier wave of the radio-frequency channel of the map information of described radio-frequency channel sign of the sign of described terminal and notice and described terminal work at present and described terminal work at present.
21., it is characterized in that after the end of scan, described method also comprises according to each described method in the claim 3 to 10:
Described terminal reports rule by the main carrier of described terminal scanning result to be sent to described serving BS according to described scanning result, wherein, described scanning result comprises: the measurement result after Report mode, report value type and described terminal scan described one or more carrier waves;
Described serving BS is described terminal select target carrier wave according to described scanning result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101357674A CN101877902A (en) | 2009-04-28 | 2009-04-28 | Scanning method based on multi-carrier system |
| PCT/CN2010/070792 WO2010124536A1 (en) | 2009-04-28 | 2010-02-26 | Scanning method based on a multi-carrier system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101357674A CN101877902A (en) | 2009-04-28 | 2009-04-28 | Scanning method based on multi-carrier system |
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| CN101877902A true CN101877902A (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101357674A Pending CN101877902A (en) | 2009-04-28 | 2009-04-28 | Scanning method based on multi-carrier system |
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| CN (1) | CN101877902A (en) |
| WO (1) | WO2010124536A1 (en) |
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| CN103299592A (en) * | 2012-11-30 | 2013-09-11 | 华为技术有限公司 | Carrier aggregation communication method, device and system based on long-term evolution system |
| CN103476004A (en) * | 2013-09-26 | 2013-12-25 | 东莞宇龙通信科技有限公司 | Network access auxiliary method and network access auxiliary system |
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| Publication number | Publication date |
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| WO2010124536A1 (en) | 2010-11-04 |
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