CN102938915A - Active set management method and wireless network controller - Google Patents
Active set management method and wireless network controller Download PDFInfo
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- CN102938915A CN102938915A CN2011102324923A CN201110232492A CN102938915A CN 102938915 A CN102938915 A CN 102938915A CN 2011102324923 A CN2011102324923 A CN 2011102324923A CN 201110232492 A CN201110232492 A CN 201110232492A CN 102938915 A CN102938915 A CN 102938915A
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Abstract
The invention relates to an active set management method and a wireless network controller. Links using ordinary or strengthening fractional-dedicated physical channels (F-DPCH) are built through a service radio network controller (RNC) and a user device. The method comprises that a target community which supports an ordinary or strengthening F-DPCH in communities of which the quality of the channels meets the requirement, which are managed by a drift RNC which is detected is chosen by the service RNC; and the service RNC instructs the drift RNC to build corresponding channels according to corresponding links of target communities. According to the method and the wireless network controller, the service interruption time is reduced and the handling capacity is increased.
Description
Technical field
The present invention relates to a kind of radio honeycomb communication system, relate in particular to a kind of Active Set management method and radio network controller.
Background technology
The flank speed that the R99 standard agreement of Wideband Code Division Multiple Access (WCDMA) (WCDMA) mobile communication system offers the user is generally 384kbps, and hot zones can provide the speed of 2Mbps.From the supported dedicated channel for transmitting grouped data of R99 (dedicated channel, DCH) and DSCH Downlink Shared Channel (downlink shared channel, DSCH) performance, for the user in general area, the function of the transmission Packet Service that the R99 standard agreement provides can satisfy user's demand, but along with Packet Service user's increase and to the demand of high speed packet service, the rate bandwidth that R99 provides can not satisfy hot zones user's demand; Therefore the R5 standard agreement has been introduced high speed downlink packet access technology (HSDPA), also namely introduce a kind of high-speed packet and shared transmission channel (High Speed Downlink Shared Channel:HS-DSCH), this channel adopts time-division and code minute mode, and this channel has adopted mixed automatic retransfer (HARQ) and Adaptive Modulation and Coding (AMC) technology, so that peak rate can reach 14Mbps.The R6 standard agreement is to the up high-speed uplink packet access technique (HSUPA) of also introducing, also namely introduced enhancing transmission channel (Enhanced dedicated Channel, E-DCH), this channel has adopted mixed automatic retransfer (HARQ) equally, so that peak rate can reach 5.76Mbps.Evolution along with agreement, HSDPA and HSUPA have used more high-order modulating, MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) technology and multi-carrier frequency associating operation technique, its final purpose are by providing high speed packet service to be accessed to increase the capacity of system and reduces transmission delay to improve the user to the requirement of service quality (Qos).
After introducing the HSDPA technology, the descending DPCH the transmission of data that no longer needs, but need up-downgoing to do inner-loop power control, therefore introduced F-DPCH (Fractional Dedicated Physical Channel, the burst DPCH), in order to reduce HSDPA user to the waste of code resource, improve the utilance of code resource.After introducing the F-DPCH channel, then the multi-user can adopt time division way to share a F-DPCH (being equivalent to the spreading code that 10 users only take 256), the time division multiplexing of the initial F-DPCH that introduces realizes by configuration chip offset, but such implementation has a very large shortcoming: because the multilink of soft handover needs time unifying, therefore for the situation that increases link, its timing relationship that increases link is fixed, radio network controller can not be adjusted, like this can not distributing user for the clear position on the F-DPCH that has distributed, finally cause F-DPCH not to be re-used fully.Therefore the follow-up introducing of 3GPP strengthens F-DPCH (E-DPCH), the difference that strengthens F-DPCH and common F-DPCH is: strengthen F-DPCH and defined time slot format, as long as multi-user's multiplex mode is the different time slot format of configuration, like this F-DPCH just can be in any case reusables all, the code resource utilization improves.Concrete time slot format is as shown in table 1.
Table 1 strengthens the time slot format of F-DPCH
After adopt strengthening F-DPCH, subscriber equipment move to from the residential quarter of supporting to strengthen F-DPCH the residential quarter of not supporting to strengthen F-DPCH the time, following problem occurs sometimes: service outage duration is elongated, the reduction of throughput.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of Active Set management method and radio network controller, to solve the problem that service outage duration is long, throughput reduces.
For solving above technical problem, the invention provides a kind of Active Set management method, after service wireless network controller (RNC) and subscriber equipment were set up the link that uses common or enhancing burst DPCH (F-DPCH), the method comprised:
Select to support Target cell common or enhancing F-DPCH the residential quarter that the channel quality that described Serving RNC is administered from the Drift Radio Network Controller that monitors satisfies condition;
Described Serving RNC indication Drift Radio Network Controller is for the corresponding channel of link establishment corresponding to each Target cell.
For solving above technical problem, the present invention also provides a kind of radio network controller (RNC), and described RNC comprises:
The Target cell selected cell, as Serving RNC and and subscriber equipment set up to use common or strengthen the link of burst DPCH (F-DPCH) after the time, be used for selecting from the residential quarter that the channel quality of the Drift Radio Network Controller administration that monitors satisfies condition supporting common or strengthen the Target cell of F-DPCH;
The Active Set administrative unit during as Serving RNC, is used to indicate Drift Radio Network Controller for the corresponding channel of link establishment corresponding to each Target cell; During as Drift Radio Network Controller, be used for pointer according to Serving RNC to the corresponding channel of link establishment corresponding to each Target cell.
In the inventive method and the radio network controller, link under the floating radio network controller administration allows the residential quarter of F-DPCH and enhancing F-DPCH in same Active Set, so that subscriber equipment has soft handover gain, avoid the residential quarter of different tenabilities can not be in the generation of the direct-cut operation that causes in the same Active Set, thereby improve professional service quality, reduced service outage duration, improved throughput.
Description of drawings
Fig. 1 is the schematic diagram of Active Set management method of the present invention;
Fig. 2 is the schematic diagram of application example 1 of the present invention;
Fig. 3 is the schematic diagram of application example 2 of the present invention;
Fig. 4 is the schematic diagram of application example 3 of the present invention;
Fig. 5 is the modular structure schematic diagram of radio network controller of the present invention.
Embodiment
Realize that below in conjunction with concrete technology when the Serving cell of subscriber equipment was changed, it was elongated service outage duration to occur, the situation analysis of the reduction of throughput is as follows:
Common F-DPCH and enhancing F-DPCH are the abilities of Node B, the Node B that in whole networking network, can have different tenabilities, at present the Iur mouth of 3GPP agreement is that rank according to subscriber equipment disposes for the usefulness that strengthens F-DPCH, namely do not support to have disposed F-DPCH yet and strengthen F-DPCH in same Active Set, when subscriber equipment moves to the residential quarter of not supporting to strengthen F-DPCH from the residential quarter of distributing enhancing F-DPCH, because do not support the residential quarter that strengthens F-DPCH can not be increased in the Active Set of subscriber equipment, so professional just can not have soft handover gain, when Serving cell changes, then just can only walk the process of direct-cut operation, therefore than soft handover traffic affecting performance and user are experienced, be longer than soft handover such as service outage duration, cause the reduction of throughput in Zone switched meeting.
Based on above analysis, this patent has proposed a kind of Active Set management method, solves because the caused impact on service feature of direct-cut operation.
Active Set management method of the present invention and radio network controller mainly be applicable to service wireless network controller (RNC) and subscriber equipment set up use common or strengthen the link of burst DPCH (F-DPCH) after.
Hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Embodiment 1
Particularly, as shown in Figure 1, Active Set management method embodiment 1 of the present invention comprises:
Step 101: select to support Target cell common or enhancing F-DPCH the residential quarter that the channel quality that Serving RNC is administered from the Drift Radio Network Controller that monitors satisfies condition;
Need to prove that said common F-DPCH channel represents to introduce enhancing F-DPCH F-DPCH before herein.
The residential quarter that described channel quality satisfies condition is based on that the measurement result of user equipment to report determines.
Serving RNC need to be according to tenability information select target residential quarter from the residential quarter that channel quality satisfies condition of the residential quarter of Drift Radio Network Controller administration, this tenability information can be the preset information in the Serving RNC, also can obtain from Drift Radio Network Controller, concrete, before the described Serving RNC select target residential quarter, the method also comprises:
Described Serving RNC is known the tenability information of the F-DPCH of the residential quarter that described Drift Radio Network Controller is administered;
Described Serving RNC is according to described tenability Information Selection Target cell.
The mode that the mode that Serving RNC is known can adopt Serving RNC request, Drift Radio Network Controller to feed back according to request can be informed initiatively by Drift Radio Network Controller that also the present invention does not do restriction to this.
The step of described Serving RNC select target residential quarter comprises the residential quarter execution following steps that satisfy condition for each channel quality:
Described RNC judges whether the residential quarter that current channel quality satisfies condition supports to strengthen F-DPCH, if support, determine that then the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise, further judge whether the residential quarter that current channel quality satisfies condition supports common F-DPCH, if support, the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise refuses the residential quarter adding Active Set that this channel quality satisfies condition.
Step 102: described Serving RNC indication Drift Radio Network Controller is for the corresponding channel of link establishment corresponding to each Target cell.
Described Serving RNC indication Drift Radio Network Controller comprises for the step of the corresponding channel of link establishment corresponding to each Target cell:
Described Serving RNC sends indication information for one or several Target cells to described Drift Radio Network Controller, if Target cell is supported common F-DPCH, then indicates link corresponding to this Target cell of Drift Radio Network Controller to use common F-DPCH; If the Target cell support strengthens F-DPCH, then indicate link corresponding to this Target cell of Drift Radio Network Controller to use and strengthen F-DPCH;
Described Drift Radio Network Controller receives described indication information, is the common F-DPCH of link assignment corresponding to described Target cell or enhancing F-DPCH, and initiates to set up the flow process of common F-DPCH or enhancing F-DPCH to corresponding Node B.
Embodiment 2
Among this embodiment 2, the method for Active Set of the present invention being managed from the angle of service wireless network controller describes.
Concrete, the treatment step of service wireless network controller comprises:
The first step: service wireless network controller and subscriber equipment have been set up communication link, and are using common F-DPCH or strengthening the F-DPCH channel;
Second step: service wireless network controller is known in advance the F-DPCH of the residential quarter of floating radio network controller under administering and is strengthened the tenability information of F-DPCH;
0 the 3rd step: service wireless network controller monitors the residential quarter that the channel quality of floating radio network controller under administering satisfies condition, and can be one or more residential quarter;
Understandably, between the above first step and the second step and second step and between the 3rd step without the restriction of sequencing.
The 4th step: service wireless network controller selects to support Target cell common or enhancing F-DPCH from the residential quarter that aforementioned channel quality satisfies condition, and the indication Drift Radio Network Controller is for the corresponding channel of link establishment corresponding to each Target cell, particularly, service wireless network controller can be carried out following steps for the residential quarter that each channel quality satisfies condition:
(a) service wireless network controller judges whether the residential quarter that current channel quality satisfies condition supports to strengthen F-DPCH, if support, then indicates to this link of floating radio network controller and uses enhancing F-DPCH channel; Otherwise carry out (b);
(b) service wireless network controller judges whether the residential quarter that current channel quality satisfies condition supports F-DPCH, if support, then indicates to this link of floating radio network controller and uses common F-DPCH channel; Otherwise carry out (c);
(c) the service wireless network controller refusal adds Active Set to this residential quarter.
Embodiment 3
Among this embodiment 2, the method for Active Set of the present invention being managed from the angle of floating radio network controller describes.
Particularly, floating radio network controller is different according to the indication that receives, and carries out different processing:
If floating radio network controller is received service wireless network controller and is indicated certain bar link to use and strengthen F-DPCH, then strengthen the F-DPCH channel for this wireless links distributes, and the Node B under its administration initiates to set up the process that strengthens the F-DPCH channel;
If floating radio network controller receives service wireless network controller and indicate certain bar link to use common F-DPCH, then for this wireless links distributes common F-DPCH channel, and set up the process of common F-DPCH channel to the lower Node B initiation of its administration.
For the ease of understanding, below in conjunction with accompanying drawing, provide 3 concrete application examples:
Application example 1
In this application example 1, CELL1 is the residential quarter under the floating radio network controller administration, and only supports or not to strengthen F-DPCH by F-DPCH; CELL2 is the residential quarter under the floating radio network controller administration, and supports to strengthen F-DPCH.
As shown in Figure 2, this application example 1 may further comprise the steps:
Step 110: service wireless network controller and subscriber equipment have been set up communication link, and are using common F-DPCH;
Step 120: service wireless network controller know in advance floating radio network controller under administering residential quarter CELL1 and the F-DPCH of CELL2 and strengthen the tenability information of F-DPCH;
Step 130: user equipment to report same frequency measuring case 1A, its indicating CELL2 satisfies the 1A event;
Step 140: service wireless network controller judges that CELL2 supports to strengthen F-DPCH, then determines CELL2 for needing to add the Target cell of Active Set, and decision-making adds CELL2 the Active Set of this subscriber equipment;
Step 150: this link of service wireless network controller indication floating radio network controller uses and strengthens the F-DPCH channel;
Step 160: floating radio network controller receives that the service wireless network controller indication needs this link of setting up, need to use enhancing F-DPCH, then strengthen the F-DPCH channel for this wireless links distributes, and the Node B under its administration initiates to set up the process that strengthens the F-DPCH channel.
Application example 2
In this application example 2, CELL1 is the residential quarter under the floating radio network controller administration, and only supports or not to strengthen F-DPCH by F-DPCH; CELL2 is the residential quarter under the floating radio network controller administration, and supports to strengthen F-DPCH.
As shown in Figure 3, this application example 2 may further comprise the steps:
Step 210: service wireless network controller and subscriber equipment have been set up communication link, and are using enhancing F-DPCH;
Step 220: service wireless network controller know in advance floating radio network controller under administering residential quarter CELL1 and the F-DPCH of CELL2 and strengthen the tenability information of F-DPCH;
Step 230: user equipment to report same frequency measuring case 1A, its indicating CELL2 and CELL1 satisfy the 1A event;
Step 240: service radio network control judges that CELL2 supports to strengthen F-DPCH, and CELL1 supports common F-DPCH, then determines CELL1, CELL2 for needing to add the Target cell of Active Set, and decision-making all adds CELL1 and CELL2 the Active Set of this subscriber equipment;
Step 250: service wireless network controller is indicated to this link of floating radio network controller CELL2 and is used enhancing F-DPCH channel, and this link of CELL1 uses common F-DPCH channel;
Step 260: floating radio network controller is received this link of service wireless network controller indication CELL2, need to use enhancing F-DPCH, then strengthen the F-DPCH channel for this wireless links distributes, and the Node B under its administration initiates to set up the process that strengthens the F-DPCH channel; Floating radio network controller receives that this rule link of service wireless network controller indication CELL1 need to use common F-DPCH, then for this wireless links distributes common F-DPCH channel, and set up the process of common F-DPCH channel to the lower Node B initiation of its administration.
Application example 3
In this application example 3, CELL1 is the residential quarter under the floating radio network controller administration, and only supports or not to strengthen F-DPCH by F-DPCH; CELL2 is the residential quarter under the floating radio network controller administration, and supports to strengthen F-DPCH; CELL3 is the residential quarter under the floating radio network controller administration, does not support F-DPCH
As shown in Figure 4, this application example 3 may further comprise the steps:
Step 310: service wireless network controller and subscriber equipment have been set up communication link, and are using enhancing F-DPCH;
Step 320: service wireless network controller know in advance floating radio network controller under administering residential quarter CELL1, CELL2 and the F-DPCH of CELL3 and strengthen the tenability information of F-DPCH;
Step 330: user equipment to report same frequency measuring case 1A, its indicating CELL3 satisfies the 1A event;
Step 340: service wireless network controller judges that CELL3 does not support the F-DPCH channel;
Step 350: the service wireless network controller refusal adds CELL3 the Active Set of this subscriber equipment.
In order to realize above method, the present invention also provides a kind of radio network controller (RNC), corresponding to previous embodiment 1, as shown in Figure 5, with the present invention especially relatively, described RNC comprises:
The Target cell selected cell, as Serving RNC and and subscriber equipment set up to use common or strengthen the link of burst DPCH (F-DPCH) after the time, be used for selecting from the residential quarter that the channel quality of the Drift Radio Network Controller administration that monitors satisfies condition supporting common or strengthen the Target cell of F-DPCH;
The Active Set administrative unit during as Serving RNC, is used to indicate Drift Radio Network Controller for the corresponding channel of link establishment corresponding to each Target cell; During as Drift Radio Network Controller, be used for pointer according to Serving RNC to the corresponding channel of link establishment corresponding to each Target cell.
Further, the residential quarter that satisfies condition of described channel quality is based on that the measurement result of user equipment to report determines.
Serving RNC can preset the tenability information of the residential quarter of Drift Radio Network Controller administration, certainly replacedly, described RNC can also comprise that tenability information knows the unit, during as Serving RNC, is used for knowing the tenability information of F-DPCH of the residential quarter of described Drift Radio Network Controller administration; Described Target cell selected cell is according to the described Target cell of described tenability Information Selection.
Further, during described Target cell selected cell select target residential quarter, carry out one by one for the residential quarter that each channel quality satisfies condition: judge first whether the residential quarter that current channel quality satisfies condition supports to strengthen F-DPCH, if support, determine that then the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise, further judge whether the residential quarter that current channel quality satisfies condition supports common F-DPCH, if support, the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise refuses the residential quarter adding Active Set that this channel quality satisfies condition.
Particularly, described Active Set administrative unit comprises:
The indication sending module during as Serving RNC, is used for sending indication information for one or several Target cells to described Drift Radio Network Controller, if Target cell is supported common F-DPCH, then indicates link corresponding to this Target cell of Drift Radio Network Controller to use common F-DPCH; If the Target cell support strengthens F-DPCH, then indicate link corresponding to this Target cell of Drift Radio Network Controller to use and strengthen F-DPCH;
The indication receiver module during as Drift Radio Network Controller, is used for receiving the described indication information that Serving RNC sends;
Control module during as Drift Radio Network Controller, is used to the common F-DPCH of link assignment corresponding to described Target cell or strengthens F-DPCH, and flow process from enhancing F-DPCH to corresponding Node B that initiate to set up common F-DPCH or.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The inventive method and radio network controller, link under the floating radio network controller administration allows the residential quarter of F-DPCH and enhancing F-DPCH in same Active Set, so that subscriber equipment has soft handover gain, avoid the residential quarter of different tenabilities can not be in the generation of the direct-cut operation that causes in the same Active Set, thereby improve professional service quality.
Claims (10)
1. an Active Set management method is characterized in that, after service wireless network controller (RNC) and subscriber equipment were set up the link that uses common or enhancing burst DPCH (F-DPCH), the method comprised:
Select to support Target cell common or enhancing F-DPCH the residential quarter that the channel quality that described Serving RNC is administered from the Drift Radio Network Controller that monitors satisfies condition;
Described Serving RNC indication Drift Radio Network Controller is for the corresponding channel of link establishment corresponding to each Target cell.
2. the method for claim 1 is characterized in that: the residential quarter that described channel quality satisfies condition is based on that the measurement result of user equipment to report determines.
3. the method for claim 1, it is characterized in that: before the described Serving RNC select target residential quarter, the method also comprises:
Described Serving RNC is known the tenability information of the F-DPCH of the residential quarter that described Drift Radio Network Controller is administered;
Described Serving RNC is according to described tenability Information Selection Target cell.
4. such as claim 1 or 3 described methods, it is characterized in that: the step of described Serving RNC select target residential quarter comprises the residential quarter execution following steps that satisfy condition for each channel quality:
Described RNC judges whether the residential quarter that current channel quality satisfies condition supports to strengthen F-DPCH, if support, determine that then the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise, further judge whether the residential quarter that current channel quality satisfies condition supports common F-DPCH, if support, the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise refuses the residential quarter adding Active Set that this channel quality satisfies condition.
5. the method for claim 1 is characterized in that: described Serving RNC indication Drift Radio Network Controller comprises for the step of the corresponding channel of link establishment corresponding to each Target cell:
Described Serving RNC sends indication information for one or several Target cells to described Drift Radio Network Controller, if Target cell is supported common F-DPCH, then indicates link corresponding to this Target cell of Drift Radio Network Controller to use common F-DPCH; If the Target cell support strengthens F-DPCH, then indicate link corresponding to this Target cell of Drift Radio Network Controller to use and strengthen F-DPCH;
Described Drift Radio Network Controller receives described indication information, is the common F-DPCH of link assignment corresponding to described Target cell or enhancing F-DPCH, and initiates to set up the flow process of common F-DPCH or enhancing F-DPCH to corresponding Node B.
6. a radio network controller (RNC) is characterized in that, described RNC comprises:
The Target cell selected cell, as Serving RNC and and subscriber equipment set up to use common or strengthen the link of burst DPCH (F-DPCH) after the time, be used for selecting from the residential quarter that the channel quality of the Drift Radio Network Controller administration that monitors satisfies condition supporting common or strengthen the Target cell of F-DPCH;
The Active Set administrative unit during as Serving RNC, is used to indicate Drift Radio Network Controller for the corresponding channel of link establishment corresponding to each Target cell; During as Drift Radio Network Controller, be used for pointer according to Serving RNC to the corresponding channel of link establishment corresponding to each Target cell.
7. RNC as claimed in claim 6 is characterized in that: the residential quarter that described channel quality satisfies condition is based on that the measurement result of user equipment to report determines.
8. RNC as claimed in claim 6 is characterized in that: described RNC comprises that also tenability information knows the unit, during as Serving RNC, is used for knowing the tenability information of F-DPCH of the residential quarter of described Drift Radio Network Controller administration; Described Target cell selected cell is according to the described Target cell of described tenability Information Selection.
9. such as claim 6 or 8 described RNC, it is characterized in that: during described Target cell selected cell select target residential quarter, carry out one by one for the residential quarter that each channel quality satisfies condition: judge first whether the residential quarter that current channel quality satisfies condition supports to strengthen F-DPCH, if support, determine that then the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise, further judge whether the residential quarter that current channel quality satisfies condition supports common F-DPCH, if support, the residential quarter that this channel quality satisfies condition is the Target cell that needs to add Active Set, otherwise refuses the residential quarter adding Active Set that this channel quality satisfies condition.
10. RNC as claimed in claim 6 is characterized in that, described Active Set administrative unit comprises:
The indication sending module during as Serving RNC, is used for sending indication information for one or several Target cells to described Drift Radio Network Controller, if Target cell is supported common F-DPCH, then indicates link corresponding to this Target cell of Drift Radio Network Controller to use common F-DPCH; If the Target cell support strengthens F-DPCH, then indicate link corresponding to this Target cell of Drift Radio Network Controller to use and strengthen F-DPCH;
The indication receiver module during as Drift Radio Network Controller, is used for receiving the described indication information that Serving RNC sends;
Control module during as Drift Radio Network Controller, is used to the common F-DPCH of link assignment corresponding to described Target cell or strengthens F-DPCH, and flow process from enhancing F-DPCH to corresponding Node B that initiate to set up common F-DPCH or.
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| CN101170350B (en) * | 2006-10-25 | 2011-12-28 | 中兴通讯股份有限公司 | Transfer method between partially special physical channel and special physical channel |
| CN101426237B (en) * | 2008-12-09 | 2010-09-29 | 华为技术有限公司 | Method for wireless link establishing, method and device for cell switching |
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