CN101547486A - Method, system and device for processing switch - Google Patents
Method, system and device for processing switch Download PDFInfo
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- CN101547486A CN101547486A CN200810086332A CN200810086332A CN101547486A CN 101547486 A CN101547486 A CN 101547486A CN 200810086332 A CN200810086332 A CN 200810086332A CN 200810086332 A CN200810086332 A CN 200810086332A CN 101547486 A CN101547486 A CN 101547486A
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Abstract
The embodiment of the invention discloses a method, a system and a device for processing switch. The method for processing the switch comprises the following steps: notifying user equipment UE to measure on a selected main carrier frequency by a measurement control message, wherein the main carrier frequency is selected in a multicarrier cell; receiving a measurement report reported by the UE; and maintaining an active set according to the measurement report, and updating a service cell of the UE, wherein the measurement report at least comprises signal quality of the main carrier frequency. The embodiment of the invention provides a processing method for the switch among cells when the UE moves in a multicarrier communication system, which ensures that the UE establishes the connection with a link with good signal quality as far as possible in various occasions when the UE moves, simplifies the maintenance operation of the active set by limiting a subset taking an active set of an auxiliary carrier frequency as an active set of the main carrier frequency, and realizes that the UE maintains the connection with the link with the best signal quality on the main carrier frequency and the auxiliary carrier frequency.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of mthods, systems and devices of hand-off process.
Background technology
In order to satisfy the growth of growing wireless traffic, on existing single carrier CDMA (CodeDivision Multiple Access, code division multiple access) communication system infrastructure, the CDMA multiple carrier communication system has been proposed.Multi-carrier communications systems can be simultaneously at two or more carrier frequency transmitting datas, and its up link and down link can use the carrier frequency of identical or different number to communicate simultaneously concerning a user.
In the CDMA multiple carrier communication system, may there be following networking scene:
(1) paired carrier frequency of uplink-downlink configuration, azygous descending carrier frequency of descending additional configuration is used to satisfy the demand of downlink capacity;
(2) two paired carrier frequency of uplink-downlink configuration, these two carrier frequency belong to same frequency range.
(3) two paired carrier frequency of uplink-downlink configuration, these of two carrier frequency belong to 900M frequency range, one and belong to the 2G frequency range.Wherein the 900M frequency range can be used for continuous covering, and the capacity that the 2G frequency range is used for center of housing estate promotes.
(4) descending employing K1/K3 frequency multiplexing mode networking.That is to say descending two frequencies that use simultaneously, one of them frequency all is identical to all sectors, and another frequency is different (adopting the K3 multiplex mode) to 3 sectors, thereby reduces the interference of minizone.
Under these complicated networking scene, the minizone switching problem when all needing to solve the user and moving.To HSPA user, also need to upgrade user's Serving cell according to the signal quality of each carrier frequency.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art: prior art is not provided in the CDMA multiple carrier communication system, carries out the method that switch the minizone when user moves.
Summary of the invention
The embodiment of the invention provides a kind of mthods, systems and devices of hand-off process, to be implemented in the multi-carrier communications systems, carries out the minizone hand-off process when subscriber equipment moves, and upgrades the Serving cell of subscriber equipment.
For achieving the above object, the embodiment of the invention provides a kind of method of hand-off process, comprising: measure on the main carrier frequency of selecting by measuring control messages notifying user equipment UE, described main carrier frequency is selected in multi-carrier district; Receive the measurement report that described UE reports, safeguard Active Set according to described measurement report, and upgrade the Serving cell of described UE, described measurement report comprises the signal quality of described main carrier frequency at least.
On the other hand, the embodiment of the invention also provides a kind of system of hand-off process, comprising: user equipment (UE) is used for reporting measurement reports; Network equipment, be used for notifying described UE on the main carrier frequency of selecting, to measure, receive the measurement report that described UE reports, safeguard Active Set according to described measurement report by measuring control messages, upgrade the Serving cell of described UE, described main carrier frequency is selected in multi-carrier district.
On the one hand, the embodiment of the invention also provides a kind of network equipment, comprising again: notification module is used for measuring on the main carrier frequency of selecting by measuring control messages notifying user equipment UE; Receiver module is used to receive the measurement report that described UE reports; The maintenance update module is used for safeguarding Active Set according to the measurement report that described receiver module receives that upgrade the Serving cell of described UE, described main carrier frequency is selected in multi-carrier district.
Compared with prior art, the embodiment of the invention has the following advantages: pass through the embodiment of the invention, network equipment is measured on the main carrier frequency of selecting by measuring control messages notice UE, this main carrier frequency is selected in multi-carrier district, safeguard Active Set according to the measurement report that UE reports, and upgrade the Serving cell of UE.Thereby provide a kind of in multi-carrier communications systems, carried out minizone switching processing method when UE moves.
Description of drawings
Flow chart for the method for the hand-off process that provides in the embodiment of the invention one is provided Fig. 1;
Fig. 2 is the schematic diagram of embodiment of the invention K1/K3 networking structure;
Fig. 3 is the structure chart of the system of embodiment of the invention hand-off process;
Fig. 4 is the structure chart of embodiment of the invention network equipment.
Embodiment
The embodiment of the invention provides a kind of method of hand-off process, is used for carrying out the minizone at multi-carrier communications systems and switches.
The embodiment of the invention is introduced the notion of multi-carrier district: a multi-carrier district can be supported a plurality of carrier frequency, and these carrier frequency corresponding district have certain correlation on the geographical position.In embodiments of the present invention, multi-carrier district refers to be different from a kind of particular cell of original single-carrier cell, and the sub-district ID that this sub-district has oneself supports a plurality of carrier frequency; Perhaps, multi-carrier district refers to a set of cells, and each sub-district in this set of cells is all the same with single-carrier cell of the prior art to be sub-district independently, and the sub-district ID of each sub-district in this set of cells can be identical, also can be different.
The embodiment of the invention is further introduced the notion of main carrier frequency: in multi-carrier district, select a carrier frequency as main carrier frequency, if when upstream or downstream are used same carrier frequency simultaneously, then with this carrier frequency as main carrier frequency; If up-downgoing has service bearer on DCH (Dedicated Channel, dedicated channel), then with DCH place carrier frequency as main carrier frequency; If the provisional capital has been used a plurality of carrier frequency simultaneously and has not been had the business that is carried on the DCH up and down, the 2a incident that reports according to UE of network side then, the change of decision main carrier frequency, wherein the 2a incident refers to that change has taken place the best carrier frequency of signal quality.After each main carrier frequency changed, network side issued new measurement control messages and informs that UE (User Equipment, subscriber equipment) is used for the carrier frequency of handover measurement.
UE determines the triggering of various measurement event according to main carrier frequency, but need carry the information of all carrier frequency during reporting measurement reports, when whether network side adds Active Set with the sub-district in decision when 1d Event triggered (particularly) need take all factors into consideration the signal quality of all carrier frequency, wherein the 1d incident refers to that change has taken place the best co-frequency cell of signal quality.
As shown in Figure 1, the flow chart for the method for the hand-off process that provides in the embodiment of the invention one can comprise:
S101 measures on the main carrier frequency of selecting by measuring control messages notice UE, and this main carrier frequency is selected in multi-carrier district.
The selection course of main carrier frequency can for:
When the upstream or downstream link of UE only uses a carrier frequency, select this carrier frequency that uses to be main carrier frequency; Perhaps,
When existing on the upstream or downstream link of UE when being carried on professional on the DCH, selecting the carrier frequency at DCH place is main carrier frequency; Perhaps,
When the upstream or downstream link of UE uses a plurality of carrier frequency simultaneously and do not exist when being carried on professional on the DCH, select that the best carrier frequency of signal quality is a main carrier frequency in a plurality of carrier frequency, carrier frequency in a plurality of carrier frequency except that main carrier frequency is an assistant carrier frequency, and the 2a incident that network side reports according to UE, the change of decision main carrier frequency.
Network side is measured on main carrier frequency and assistant carrier frequency by measuring control messages notice UE, and the measurement report that UE reports includes but not limited to the signal quality of main carrier frequency and assistant carrier frequency.
S102 receives the measurement report that UE reports, and safeguards Active Set according to this measurement report, and upgrades the Serving cell of UE, thereby makes UE can carry out the minizone hand-off process in multicarrier system.
According to measurement report safeguard Active Set can for:
When the upstream or downstream link of UE uses a plurality of carrier frequency simultaneously, safeguard the Active Set of main carrier frequency and assistant carrier frequency, the Active Set of assistant carrier frequency is the subclass of the Active Set of main carrier frequency, the Serving cell of main carrier frequency and the Serving cell of assistant carrier frequency are consistent.Be specially: the Serving cell of main carrier frequency and assistant carrier frequency is same sub-district, and perhaps, the Serving cell of main carrier frequency and assistant carrier frequency belongs to same multi-carrier district.
Wherein, safeguard main carrier frequency Active Set can for:
Whether whether the 1x incident decision that network side reports according to UE adds a sub-district Active Set of main carrier frequency, perhaps a sub-district is deleted from the Active Set of main carrier frequency.Above-mentioned sub-district can be a multi-carrier district, also can be for using the single-carrier cell of main carrier frequency in the multi-carrier district set.Wherein, the 1x incident is a class same frequency measuring case of agreement regulation, comprise 1a, 1b or 1c incident etc., the 1a incident refer to one not the signal quality of the sub-district in Active Set become relatively good, be higher than the scope that reports, for example it is compared with the best cell in the Active Set, and the difference of signal quality is less than predetermined thresholding, and network side is received the Active Set that can add this sub-district main carrier frequency after the 1a incident that UE reports; The 1b incident refers to that the quality of certain sub-district becomes relatively poor in the Active Set, and network side is received after the 1b incident that UE reports can deletion and being connected of this sub-district foundation, and promptly network side is deleted this sub-district from the Active Set of main carrier frequency; The 1c incident refers to that the signal quality of the sub-district that Active Set is outer is higher than the signal quality of the poorest sub-district in the Active Set, and network side receives that using this sub-district after the 1c incident replaces the poorest sub-district in the Active Set of main carrier frequency.
In addition, safeguard assistant carrier frequency Active Set can for:
When the assistant carrier frequency signal quality of indication multi-carrier district in the measurement report that UE reports is higher than predetermined threshold, this multi-carrier district is added the Active Set of assistant carrier frequency;
When the assistant carrier frequency signal quality of this multi-carrier district of indication in the measurement report that UE reports is lower than predetermined threshold, this multi-carrier district is deleted from the Active Set of assistant carrier frequency;
Safeguard assistant carrier frequency Active Set can also for:
When the signal quality that uses the sub-district of assistant carrier frequency in the indication multi-carrier district set in the measurement report that UE reports is higher than predetermined threshold, use the sub-district of assistant carrier frequency to add the Active Set of assistant carrier frequency this;
When the signal quality that uses the sub-district of assistant carrier frequency in this multi-carrier district set of indication in the measurement report that UE reports is lower than predetermined threshold, the sub-district of this use assistant carrier frequency is deleted from the Active Set of assistant carrier frequency.
In addition, according to measurement report safeguard Active Set can also for:
Safeguard the Active Set of main carrier frequency and assistant carrier frequency according to measurement report, the best sub-district of signal quality is consistent in the Serving cell of this assistant carrier frequency and the Active Set of main carrier frequency.If the sub-district that the best sub-district of signal quality changes and signal quality is best in the Active Set of main carrier frequency is not in the Active Set of assistant carrier frequency, then that signal quality is best sub-district adds the Active Set of assistant carrier frequency, and with the Serving cell of the best sub-district of this signal quality as assistant carrier frequency.
In addition, the main carrier frequency that the embodiment of the invention can also report according to measurement report and the signal quality of assistant carrier frequency, and the loading condition of the best sub-district of the signal quality of main carrier frequency and assistant carrier frequency upgrade the Serving cell of UE.
In addition, the main carrier frequency that the embodiment of the invention can also report according to measurement report and the signal quality of assistant carrier frequency are safeguarded the Active Set and the Serving cell of main carrier frequency and assistant carrier frequency, and at this moment the Serving cell of main carrier frequency and assistant carrier frequency also can be inconsistent.
The method of the hand-off process that the embodiment of the invention proposes is applicable to that the upstream or downstream link of UE uses the scene of one or more carrier frequency, but the embodiment of the invention uses one or two carrier frequency to describe as example with the upstream or downstream link of UE simultaneously.Several different networking scene below in conjunction with multi-carrier communications systems describes in further detail the embodiment of the invention:
One, as paired carrier frequency f1 of uplink-downlink configuration, during the azygous descending carrier frequency f2 of one of descending additional configuration,
Be chosen to carrier frequency f1 as main carrier frequency.Network side is indicated UE to decide the triggering of measurement event according to the signal quality of f1 in the measurement control messages that issues and is reported, and network side is received maintenance and the service cell updating that also only carries out Active Set behind the measurement report of UE according to the measurement result of UE on carrier frequency f1.
Under this scene, whether UE connects with Serving cell on carrier frequency f2 according to the signal quality decision of assistant carrier frequency, be specially: UE on carrier frequency f2 only and HSDPA (High Speed DownlinkPacket Access, high speed downlink packet access) Serving cell connect.
When the signal quality of the carrier frequency f2 of indication multi-carrier district in the measurement report that UE reports is higher than predetermined threshold, this multi-carrier district is added the Active Set of assistant carrier frequency;
When the signal quality of the carrier frequency f2 of this multi-carrier district of indication in the measurement report that UE reports is lower than predetermined threshold, this multi-carrier district is deleted from the Active Set of assistant carrier frequency.Perhaps,
When the signal quality that uses the sub-district of f2 in the indication multi-carrier district set in the measurement report that UE reports is higher than predetermined threshold, use the sub-district of f2 to add the Active Set of assistant carrier frequency this;
When the signal quality that uses the sub-district of f2 in this multi-carrier district set of indication in the measurement report that UE reports is lower than predetermined threshold, the sub-district of this use f2 is deleted from the Active Set of assistant carrier frequency;
Two, when network up and down has disposed two paired carrier frequency simultaneously,
UE still is HSPA (High Speed Packet Access according to service bearer at R99, high-speed packet inserts) upward determine uplink downlink specifically to use several carrier frequency, therefore the uplink downlink of UE may all use two carrier frequency, also may have only up or has only two carrier frequency of descending use.
When uplink downlink has used two carrier frequency simultaneously, if the provisional capital does not have service bearer on DCH up and down, then network side can send and measure control messages and require UE to report the 2a incident according to the signal quality of two carrier frequency that use, network side is according to the change of 2a incident decision main carrier frequency then, with best carrier frequency as main carrier frequency.If the upstream or downstream link has service bearer on DCH, be main carrier frequency then with DCH place carrier frequency.
When the upstream or downstream link has used a carrier frequency owing to current of the reason of service bearer type, then with the carrier frequency that uses as main carrier frequency.In the time can using two carrier frequency simultaneously behind the service bearer type change, network side sending measuring control messages requires UE to measure the trigger condition that current untapped carrier frequency judges whether to satisfy the 2c incident, if satisfy, then the sub-district on this carrier frequency is added Active Set.
When two carrier frequency are used in the support of upstream or downstream link, but when having used a carrier frequency owing to current of signal quality reason, then with the carrier frequency of current use as main carrier frequency.Current the sub-district on the carrier frequency that does not use to be added into Active Set by the triggering of 2c incident, and after the adding, network side determines according to the signal quality of two carrier frequency whether needs change main carrier frequency.
After each main carrier frequency changed, network side issued new measurement control messages and informs that UE is used for the carrier frequency of minizone with frequency, alien frequencies or different system handover measurement.
Network side can be safeguarded the Active Set of main carrier frequency and assistant carrier frequency respectively, for example:
(1) has only when UE can use two carrier frequency simultaneously, just safeguard the Active Set of assistant carrier frequency.
(2) only can be carried on the main carrier frequency owing to DCH, so assistant carrier frequency only need be to HSPA service maintenance Active Set.That is to say that if up have a HSUPA business, network side need be safeguarded E-DCH (Enhanced Dedicated Channel strengthens dedicated channel) Active Set to assistant carrier frequency; Otherwise network side only need be safeguarded the HSDPA Serving cell to assistant carrier frequency.
(3) when UE and two carrier frequency all connect, guarantee the Serving cell unanimity of two carrier frequency.
(4) Active Set of assistant carrier frequency is the subclass of main carrier frequency Active Set.That is to say, when UE reports signal quality variation, need report the signal quality of two carrier frequency in the multi-carrier district simultaneously.Have only when the multi-carrier district on the main carrier frequency is added into Active Set, the multi-carrier district on the assistant carrier frequency just can be added into Active Set; When the multi-carrier district on the main carrier frequency was deleted from Active Set, the multi-carrier district on the assistant carrier frequency also will be deleted from Active Set.Perhaps,
When the sub-district on the main carrier frequency adds Active Set, just consider to use the sub-district of assistant carrier frequency to add Active Set in the multi-carrier district set with this place, sub-district.When the sub-district on the main carrier frequency is deleted from Active Set, use the sub-district of assistant carrier frequency also will from Active Set, delete in the set of the multi-carrier district at this place, sub-district.
(5) when the sub-district of using assistant carrier frequency was added the Active Set of assistant carrier frequency, the signal quality of this sub-district also needed to be higher than default thresholding; When the signal quality of certain sub-district of using assistant carrier frequency was lower than default thresholding, that UE and this sub-district need be set up on assistant carrier frequency was connected deletion;
To main carrier frequency, whether UE reports the 1x incident whether a sub-district to be added the Active Set of main carrier frequency for network side decision, perhaps a sub-district is deleted from the Active Set of main carrier frequency.Above-mentioned sub-district can be a multi-carrier district, also can be for using the single-carrier cell of main carrier frequency in the multi-carrier district set.Wherein, the 1x incident is a class same frequency measuring case of agreement regulation, comprise 1a, 1b or 1c incident etc., the 1a incident refer to one not the signal quality of the sub-district in Active Set become relatively good, be higher than the scope that reports, for example it is compared with the best cell in the Active Set, and the difference of signal quality is less than a thresholding, and network side can add Active Set to this sub-district after receiving the 1a incident that UE reports; The 1b incident refers to that the quality of certain sub-district becomes relatively poor in the Active Set, and network side is received after the 1b incident that UE reports can deletion and being connected of this sub-district foundation; The 1c incident refers to that the signal quality of the sub-district that Active Set is outer is higher than the signal quality of the poorest sub-district in the Active Set, and network side receives that using this sub-district after the 1c incident replaces the poorest sub-district in Active Set.
To assistant carrier frequency, UE wants reporting measurement reports, and network side determines the establishment of connection and the deletion of UE and assistant carrier frequency sub-district according to the incident that reports in the scope of main carrier frequency Active Set subclass.Be specifically as follows:
When the assistant carrier frequency signal quality of indication multi-carrier district in the measurement report that UE reports is higher than predetermined threshold, this multi-carrier district is added the Active Set of assistant carrier frequency;
When the assistant carrier frequency signal quality of this multi-carrier district of indication in the measurement report that UE reports is lower than predetermined threshold, this multi-carrier district is deleted from the Active Set of assistant carrier frequency;
Safeguard assistant carrier frequency Active Set can also for:
When the signal quality that uses the sub-district of assistant carrier frequency in the indication multi-carrier district set in the measurement report that UE reports is higher than predetermined threshold, use the sub-district of assistant carrier frequency to add the Active Set of assistant carrier frequency this;
When the signal quality that uses the sub-district of assistant carrier frequency in this multi-carrier district set of indication in the measurement report that UE reports is lower than predetermined threshold, the sub-district of this use assistant carrier frequency is deleted from the Active Set of assistant carrier frequency.
Three, when descending employing K1/K3 networking structure,
Descendingly use two carrier frequency simultaneously, one of them carrier frequency all is identical to all sectors, and another carrier frequency is different to 3 sectors of base station, adopts the K3 multiplex mode reducing the interference of minizone, this moment network construction form as shown in Figure 2.
For the K1/K3 networking scene, network side can be safeguarded Active Set by the following method:
(1) if descending have only DCH, it can only transmit on DL1 so, if uplink service also only uses a carrier frequency, so, its switch decision is identical with single-carrier system.If uplink service uses two carrier frequency simultaneously, owing to can not obtain the signal quality of UL2, therefore, the E-DCH Active Set of UL2 is identical with UL1.
(2) if the descending HSDPA of having uses two carrier frequency simultaneously, but up is used a carrier frequency, in two carrier frequency of this carrier frequency of up use and descending use one is identical, at this moment when triggering UE reporting measurement reports index signal quality on another carrier frequency in descending use and be higher than default thresholding, UE connects with the HSDPA Serving cell on another carrier frequency of descending use;
When triggering UE reporting measurement reports index signal quality on another carrier frequency in descending use and be lower than default threshold event, UE is removed with being connected of HSDPA Serving cell on another carrier frequency of descending use.
(3) if the descending HSDPA of having uses two carrier frequency simultaneously, uply also use two carrier frequency simultaneously, this scene also can only be with DL1 as main carrier frequency, and the E-DCH Active Set of UL2 is identical with UL1.The whether measurement report decision that connects and report with DL2, DL3 or DL4 by UE.
The method of above-mentioned hand-off process, be that upstream or downstream link with UE uses one or two carrier frequency to describe as example simultaneously, but the method for this hand-off process is equally applicable to the scene that the upstream or downstream link of UE uses one or more carrier frequency, does not repeat them here.
The embodiment of the invention two provides the method for another kind of hand-off process, and it selects the method for main carrier frequency and the embodiment of the invention one to select the method for main carrier frequency basic identical.Difference is that the embodiment of the invention two safeguards separately the Active Set of assistant carrier frequency when up-downgoing is used a plurality of carrier frequency simultaneously, for example:
(1) when up-downgoing is used a plurality of carrier frequency simultaneously, a plurality of carrier frequency are disposed common frequency measurement respectively, UE measures assistant carrier frequency according to the measurement control messages that network side issues, and whether determines reporting of triggering signal mass change.Network side is safeguarded Active Set, the foundation of determined link and deletion to the incident of the signal quality variation that assistant carrier frequency reports according to UE.
(2) because the Active Set of main carrier frequency and assistant carrier frequency safeguards according to signal quality variation incident separately that all therefore, the best sub-district of the signal quality in main carrier frequency and the assistant carrier frequency Active Set may be inconsistent.But the Serving cell of HSPA will be as far as possible with the main carrier frequency Active Set in best cell be consistent.Therefore, when the Serving cell of HSPA is not in the assistant carrier frequency Active Set, it need be added in the assistant carrier frequency Active Set.If this moment, the Active Set of assistant carrier frequency was full, then replace the poorest sub-district of signal quality in the assistant carrier frequency Active Set with it.
The embodiment of the invention three also provides the method for another hand-off process, and the difference of itself and embodiment two is: the switching handling method in the embodiment of the invention three can be according to the signal quality and the loading condition decision Serving cell of a plurality of carrier frequency.When certain carrier frequency of certain sub-district triggered the 1d reporting events, UE can report Active Set simultaneously, monitor the signal quality of all carrier frequency of all sub-districts in collection and the detected set.If the best cell of main carrier frequency and assistant carrier frequency inconsistent (in general, even inconsistent, signal quality can be mutually not far short of what is expected yet) then preferentially selects the lower sub-district of down load as Serving cell.
The embodiment of the invention four also provides the method for another hand-off process, the difference of itself and embodiment two is: the measurement report that reports according to UE is safeguarded the Active Set of main carrier frequency and assistant carrier frequency, the Active Set of main carrier frequency and assistant carrier frequency can be inconsistent, the sub-district that the signal quality of main carrier frequency and assistant carrier frequency is best, and Serving cell also can be inconsistent.This moment main carrier frequency and assistant carrier frequency Active Set can it doesn't matter.
The embodiment of the invention can guarantee under the various scenes that by rational selection main carrier frequency all good link establishment is connected UE with signal quality as far as possible when mobile.In addition, can also by restriction assistant carrier frequency Active Set the attended operation of the subclass simplification Active Set of main carrier frequency Active Set, moreover, safeguard the Active Set of main carrier frequency and assistant carrier frequency separately, help UE and on main carrier frequency and assistant carrier frequency, all try one's best and keep being connected with the best link of signal quality.Further, the combined dispatching between two carrier waves of being more convenient for that is consistent of the Serving cell by restriction main carrier frequency and assistant carrier frequency helps the performance boost of dispatching algorithm.According to the signal quality and the loading condition decision Serving cell of main carrier frequency and assistant carrier frequency, help the HSDPA Serving cell of the sub-district that load is lower when the Active Set of main carrier frequency and assistant carrier frequency is safeguarded separately, help to promote user's descending throughput as the user.Though and the inconsistent complexity that can increase realization of the Serving cell of main carrier frequency and assistant carrier frequency also helps on main carrier frequency and assistant carrier frequency all with the best sub-district of signal quality separately as Serving cell, coming provides better service for UE.
As shown in Figure 3, the structure chart for the system of embodiment of the invention hand-off process comprises:
User equipment (UE) 31 is used for reporting measurement reports;
As shown in Figure 4, the structure chart for embodiment of the invention network equipment comprises:
When the upstream or downstream link of UE only uses a carrier frequency, select this carrier frequency that uses to be main carrier frequency; Perhaps,
When existing on the upstream or downstream link of UE when being carried on professional on the DCH, selecting the carrier frequency at DCH place is main carrier frequency; Perhaps,
When the upstream or downstream link of UE uses a plurality of carrier frequency simultaneously and do not exist when being carried on professional on the DCH, select that the best carrier frequency of signal quality is a main carrier frequency in a plurality of carrier frequency, carrier frequency in a plurality of carrier frequency except that main carrier frequency is an assistant carrier frequency, and the 2a incident that network side reports according to UE, the change of decision main carrier frequency.
Wherein, maintenance update module 43 can comprise: Active Set is safeguarded submodule 431, is used for the main carrier frequency that reports according to measurement report and the signal quality of assistant carrier frequency, safeguards the Active Set of this main carrier frequency and assistant carrier frequency.
Wherein, maintenance update module 43 can also comprise: cell update submodule 432, be used for the described main carrier frequency that reports according to measurement report and the signal quality of assistant carrier frequency, and Active Set is safeguarded the Serving cell of main carrier frequency of the activating set updating UE that submodule 431 is safeguarded and the Serving cell of assistant carrier frequency.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (16)
1, a kind of method of hand-off process is characterized in that, comprising:
Measure on the main carrier frequency of selecting by measuring control messages notifying user equipment UE, described main carrier frequency is selected in multi-carrier district;
Receive the measurement report that described UE reports, safeguard Active Set according to described measurement report, and upgrade the Serving cell of described UE, described measurement report comprises the signal quality of described main carrier frequency at least.
2, the method for hand-off process according to claim 1 is characterized in that the system of selection of described main carrier frequency comprises:
When the upstream or downstream link of described UE only uses a carrier frequency, select the described carrier frequency that uses to be main carrier frequency; Perhaps,
When existing on the upstream or downstream link of described UE when being carried on professional on the dedicated channel DCH, the carrier frequency of selecting described DCH place is a main carrier frequency; Perhaps,
When the upstream or downstream link of described UE uses a plurality of carrier frequency simultaneously and do not exist when being carried on professional on the DCH, select that a best carrier frequency of signal quality is a main carrier frequency in described a plurality of carrier frequency, the carrier frequency in described a plurality of carrier frequency except that described main carrier frequency is an assistant carrier frequency.
3, as the method for hand-off process as described in the claim 2, it is characterized in that, also comprise: measure on described assistant carrier frequency by measuring control messages notice UE, the measurement report that described UE reports comprises the signal quality of described assistant carrier frequency.
4, as the method for hand-off process as described in the claim 3, it is characterized in that, describedly safeguard that according to measurement report Active Set comprises:
When the upstream or downstream link of described UE uses a plurality of carrier frequency simultaneously, safeguard the Active Set of described main carrier frequency and assistant carrier frequency, the Active Set of described assistant carrier frequency is the subclass of the Active Set of described main carrier frequency, and the Serving cell of described main carrier frequency and the Serving cell of described assistant carrier frequency are consistent.
5, as the method for hand-off process as described in the claim 4, it is characterized in that the Serving cell of described main carrier frequency and the Serving cell of described assistant carrier frequency are consistent and comprise: the Serving cell of described main carrier frequency and described assistant carrier frequency is same sub-district; Perhaps,
The Serving cell of described main carrier frequency and described assistant carrier frequency belongs to same multi-carrier district.
6, as the method for hand-off process as described in the claim 4, it is characterized in that the described Active Set of assistant carrier frequency of safeguarding comprises:
When the signal quality of the assistant carrier frequency of indication multi-carrier district in the measurement report that described UE reports is higher than predetermined threshold, described multi-carrier district is added the Active Set of described assistant carrier frequency;
When the signal quality of the assistant carrier frequency of the described multi-carrier district of indication in the measurement report that described UE reports is lower than predetermined threshold, described multi-carrier district is deleted from the Active Set of described assistant carrier frequency.
7, as the method for hand-off process as described in the claim 4, it is characterized in that the described Active Set of assistant carrier frequency of safeguarding comprises:
When the signal quality of the sub-district of the assistant carrier frequency that uses in the indication multi-carrier district set in the measurement report that described UE reports is higher than predetermined threshold, the sub-district of the assistant carrier frequency of described use is added the Active Set of described assistant carrier frequency;
When the signal quality of the sub-district of the assistant carrier frequency that uses in the described multi-carrier district of the indication set in the measurement report that described UE reports is lower than predetermined threshold, the sub-district of the assistant carrier frequency of described use is deleted from the Active Set of described assistant carrier frequency.
8, as the method for hand-off process as described in the claim 3, it is characterized in that, describedly safeguard that according to measurement report Active Set comprises:
Safeguard the Active Set of described main carrier frequency and described assistant carrier frequency according to described measurement report, the best sub-district of signal quality is consistent in the Serving cell of described assistant carrier frequency and the Active Set of described main carrier frequency.
9, as the method for hand-off process as described in the claim 8, it is characterized in that, also comprise: if the sub-district that the best sub-district of signal quality changes and described signal quality is best in the Active Set of described main carrier frequency is not in the Active Set of described assistant carrier frequency, then that described signal quality is best sub-district adds the Active Set of described assistant carrier frequency, and with the Serving cell of the best sub-district of described signal quality as described assistant carrier frequency.
As the method for hand-off process as described in the claim 8, it is characterized in that 10, the Serving cell of described renewal UE comprises:
The described main carrier frequency that reports according to described measurement report and the signal quality of assistant carrier frequency, and the loading condition of the best sub-district of the signal quality of described main carrier frequency and assistant carrier frequency upgrade the Serving cell of main carrier frequency of described UE and the Serving cell of assistant carrier frequency.
11, as the method for hand-off process as described in the claim 3, it is characterized in that, describedly safeguard Active Set, and the Serving cell that upgrades described UE comprises according to measurement report:
The described main carrier frequency that reports according to described measurement report and the signal quality of assistant carrier frequency are safeguarded the Active Set of described main carrier frequency and assistant carrier frequency, upgrade the Serving cell of main carrier frequency of described UE and the Serving cell of assistant carrier frequency.
12, the method for hand-off process according to claim 1 is characterized in that described multi-carrier district is a kind of sub-district that is different from single-carrier cell, and described multi-carrier district has sub-district ID, supports a plurality of carrier frequency; Perhaps, described multi-carrier district is a set of cells, and each sub-district in the described set of cells is sub-district independently, and the sub-district ID of each sub-district in the described set of cells is identical or different.
13, a kind of system of hand-off process is characterized in that, comprising:
User equipment (UE) is used for reporting measurement reports;
Network equipment, be used for notifying described UE on the main carrier frequency of selecting, to measure, receive the measurement report that described UE reports, safeguard Active Set according to described measurement report by measuring control messages, upgrade the Serving cell of described UE, described main carrier frequency is selected in multi-carrier district.
14, a kind of network equipment is characterized in that, comprising:
Notification module is used for measuring on the main carrier frequency of selecting by measuring control messages notifying user equipment UE, and described main carrier frequency is selected in multi-carrier district;
Receiver module is used to receive the measurement report that described UE reports;
The maintenance update module is used for safeguarding Active Set according to the measurement report that described receiver module receives, and upgrades the Serving cell of described UE.
15, as network equipment as described in the claim 14, it is characterized in that described maintenance update module comprises:
Active Set is safeguarded submodule, is used for the described main carrier frequency that reports according to described measurement report and the signal quality of assistant carrier frequency, safeguards the Active Set of described main carrier frequency and assistant carrier frequency.
16, as network equipment as described in the claim 15, it is characterized in that described maintenance update module also comprises:
The cell update submodule is used for the described main carrier frequency that reports according to described measurement report and the signal quality of assistant carrier frequency, and described Active Set is safeguarded the Serving cell of main carrier frequency of the described UE of activating set updating that submodule is safeguarded and the Serving cell of assistant carrier frequency.
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| CN2008100863320A CN101547486B (en) | 2008-03-24 | 2008-03-24 | Method, system and device for processing switch |
| PCT/CN2009/070952 WO2009117935A1 (en) | 2008-03-24 | 2009-03-23 | A method, system and device of switching processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100863320A CN101547486B (en) | 2008-03-24 | 2008-03-24 | Method, system and device for processing switch |
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| CN101547486B CN101547486B (en) | 2011-02-02 |
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| WO (1) | WO2009117935A1 (en) |
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| WO2009117935A1 (en) | 2009-10-01 |
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