CN101350690B

CN101350690B - Scrambling configuration method for multimedia broadcast and multicast service of single carrier frequency network

Info

Publication number: CN101350690B
Application number: CN200710130167XA
Authority: CN
Inventors: 赵静; 马子江; 马志锋
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2013-03-27
Anticipated expiration: 2027-07-20
Also published as: CN101350690A

Abstract

The present invention discloses a scramble configuration method of multimedia broadcast multicast business of single carrier frequency network, which is used for configuring the scrambling information in the identification of public districts which correspond to the MBMS business. The method comprises the following steps: (1) when the MBMS business begins, a radio network controller RNC transmits the request information of reconfiguration of public transmission channels to the node NodeB; the request information of reconfiguration comprises the scrambling information of the time slot corresponding to the MBMS business; (2) after the node NodeB receives the request information of reconfiguration, the identification of the public districts corresponding to the MBMS business is established according to the scrambling information; and the response information of reconfiguration of the public transmission channels is transmitted to the RNC. The scramble configuration method is more reasonable, and can better satisfy the application requirements.

Description

A kind of scrambling code collocation method of multimedia broadcast and multicast service of single carrier frequency network

Technical field

The present invention relates to the scrambler resource collocation method of a kind of moving communicating field TD SDMA (TD-SCDMA) system, particularly for the collocation method of the shared time slot scrambler resource of multimedia broadcast multi-broadcasting business (MBMS) of single carrier frequency network (SFN).

Background technology

Scrambler is used for distinguishing the signal of various information source (be different transmitting terminals, can be understood as residential quarter and base station), does not change the bandwidth of spread-spectrum signal.Totally 128 scramblers in the TD-SCDMA system, 4 scramblers of each cell configuration, but general 1 of only using wherein leaves different operators for for all the other 3 and uses.The scrambler of TD-SCDMA system and training sequence (Midamble) are corresponding one by one, receiver calculates the impulse response of channel successively with 4 Midamble codes of cell configuration, the maximum is defined as the Midamble code that use the residential quarter, has determined that the Midamble code that use the residential quarter just equals to have known corresponding scrambler.Enhancing MBMS (multimedia broadcast multicast) business among the 3GPP has proposed the single-frequency point network (SFN) that a common cell sign of a kind of usefulness (common cell id) identifies.In this network, identical MBMS service signal is launched in a plurality of residential quarters synchronously.Receiving terminal is considered as multipath signal with the signal that these come from a plurality of residential quarters, by merging these signals the interference of minizone is transformed into useful signal energy, thereby has improved spectrum efficiency, makes higher service rate become possibility.

In the SFN network, be directed to the MBMS business, common cell sign (Common cell id) is used scrambler and the Midamble code of same set of time slot.Among the 3GPP scrambler of SFN residential quarter is configured in the residential quarter and sets up in the process and finish, with scrambling code information directly as the option of residential quarter time slot configuration information.After the residential quarter is set up, if some time slot in this residential quarter is used to the MBMS business of SFN network, in the system information block 5 (sib5) of system broadcasts, can issue these time slots and scrambling code information thereof so.In view of scrambler resource in the TD-SCDMA system less, so when not having within a certain period of time MBMS professional, may need to discharge the time slot scrambler resource that it takies, yet existing 3GPP agreement does not provide the method that discharges as required the professional corresponding time slot scrambler of MBMS in the SFN network.

With reference to shown in Figure 1, be the scrambler resource collocation method flow chart of existing MBMS business.The method may further comprise the steps:

Step 101:RNC (Radio Network Controller, radio network controller) sends the residential quarter to NodeB (Node B) and sets up request message, carries the scrambling code information of MBMS service needed configuration in described request message;

Step 102:NodeB returns the residential quarter to RNC and sets up response, MBMS scrambler configuration successful;

Step 103:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of configuration MBMS business in the described broadcast;

Step 104: if need to discharge the scrambler resource of MBMS business, then RNC sends the residential quarter deletion request message to NodeB, comprises the scrambler of the MBMS business that needs discharge in the described message;

After step 105:NodeB receives this message, send residential quarter deletion response message to RNC, the professional corresponding scrambler of MBMS is released.

According to the scrambling code collocation method of the MBMS business of existing SFN network, if the professional shared scrambler of MBMS is different from the scrambler of former residential quarter, the scrambler resource of MBMS business just can only discharge by deleting the residential quarter when the MBMS service ending so.Change if former residential quarter is used for the scrambler of general service, can affect all users under the whole residential quarter, by the deletion residential quarter, then rebuilding the residential quarter, to reconfigure scrambler be rational; But the MBMS service-user that only relates to part SFN network during the MBMS service ending, for the professional shared scrambler resource of corresponding time slot of the MBMS that discharges the SFN network deletion of whole residential quarter being rebuild just seems is not quite reasonable.Generally speaking, about collocation strategy and the imperfection of the MBMS business time-slot scrambler of SFN network, can't satisfy actual application demand in the existing 3GPP agreement.

Summary of the invention

Technical problem to be solved by this invention is for the SFN network provides a kind of MBMS collocation method of professional corresponding time slot scrambler, satisfies application demand.

In order to solve the problems of the technologies described above, the invention provides a kind of scrambling code collocation method of multimedia broadcast and multicast service of single carrier frequency network, be used for the scrambling code information that the professional corresponding common cell of multimedia broadcast multicast MBMS identifies is configured, said method comprising the steps of:

When (1) the MBMS business began, radio network controller (RNC) sent common transmission channel reconfiguration to node NodeB and puts request message, comprises the scrambling code information of the professional corresponding time slot of MBMS in the described reconfiguration request message;

(2) after NodeB receives described reconfiguration request message, set up the professional corresponding common cell sign of MBMS according to described scrambling code information, and put response message to RNC transmission common transmission channel reconfiguration.

Further, described method is further comprising the steps of:

When (3) the MBMS business is changed, the scrambling code information that the common cell of the professional correspondence of MBMS of release change identifies.

Further, the MBMS business changes to described in the step (3): corresponding for the MBMS business reconfigures scrambler, the step of the scrambling code information that the professional corresponding common cell of the MBMS of described release change identifies is:

(a1) RNC sends common transmission channel reconfiguration to NodeB and puts request message, comprises in the message that the common cell that need to reconfigure scrambling code information identifies corresponding scrambling code information;

(a2) NodeB receives after the described reconfiguration request, identifies the foundation that corresponding scrambling code information is finished the common cell sign according to common cell in the message, finishes backward RNC and replys successful response message.

Further, the MBMS business changes to described in the step (3): the professional corresponding scrambler of deletion MBMS, and corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is:

(b1) RNC sends the common signal channel reconfiguration request message to NodeB, does not comprise in the described message that the common cell of needs deletion identifies corresponding scrambling code information;

(b2) after NodeB finishes common cell sign on the corresponding time slot and sets up, send common transmission channel reconfiguration to RNC and put response message, finish the foundation of the professional corresponding common cell sign of MBMS.

Further, the MBMS business changes to described in the step (3): delete the professional corresponding scrambler of whole MBMS, corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is:

(c1) when the professional all end of MBMS, RNC sends the Common transport channel deletion request message to NodeB;

(c2) NodeB deletes described Common transport channel, sends Common transport channel deletion response to RNC, discharges the scrambling code information of common cell sign corresponding to MBMS business.

In order to solve the problems of the technologies described above, the present invention also provides a kind of scrambling code collocation method of multimedia broadcast and multicast service of single carrier frequency network, be used for the scrambling code information that the professional corresponding common cell of multimedia broadcast multicast MBMS identifies is configured, said method comprising the steps of:

(1) radio network controller (RNC) sends Common transport channel to node NodeB and sets up request message, and described foundation comprises in the request message that the professional corresponding common cell of MBMS identifies corresponding scrambling code information;

(2) NodeB receive described set up request message after, set up common cell sign corresponding to MBMS according to described scrambling code information, and send Common transport channel to RNC and set up response message.

Further, described method is further comprising the steps of:

The invention provides the method for the professional corresponding time slot scrambler resource of MBMS of a kind of flexible configuration and deletion SFN network, add information field in the message by putting at common transmission channel reconfiguration, put the configuration that flow process is finished the professional scrambler resource of MBMS by means of common transmission channel reconfiguration, revise and deletion action, can the MBMS business time-slot scrambler that needs discharge be discharged, conserve system resources, satisfy application demand, simultaneously when needs discharge the scrambler resource of whole MBMS business, carry out the release of scrambler resource by the deletion Common transport channel, more reasonable with respect to existing method.

Description of drawings

Fig. 1 is the scrambling code collocation method flow chart of existing MBMS business.

Fig. 2 is first embodiment of the invention scrambling code collocation method flow chart.

Fig. 3 is second embodiment of the invention scrambling code collocation method flow chart.

Embodiment

The present invention is intended to for the SFN network provides a kind of MBMS collocation method of professional corresponding time slot scrambler, by the flow process of reshuffling of Common transport channel, finishes flexibly configuration, revises and delete the function of scrambler resource of the MBMS business of SFN network.

The present invention mainly comprises following thinking:

1.MBMS during professional beginning, put the used scrambler resource of the professional corresponding time slot of MBMS of flow process configuration SFN network by common transmission channel reconfiguration;

2. put flow process by common transmission channel reconfiguration when needing, the used scrambler resource of time slot of deletion MBMS business is perhaps revised the used scrambler resource of time slot of MBMS business;

3.MBMS during service ending, the used scrambler resource of the time slot of whole MBMS business discharges automatically by deleting corresponding Common transport channel.

And have corresponding relation for the scrambler of MBMS business and common cell sign in the SFN network, so the configuration of the professional corresponding scrambler of MBMS has just been finished in operations such as foundation, change and deletion by the common cell sign.

Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.

Preferred embodiment one:

With reference to shown in Figure 2, it is first embodiment of the invention scrambling code collocation method flow chart.The present invention puts process by the common transmission channel reconfiguration between RNC and the NodeB, finishes configuration and the release of the time slot scrambler of MBMS under the SFN pattern.

On the whole, this process comprises: 1) the RNC common transmission channel reconfiguration that sends to NodeB is put in the request message, is that the time slot that adopts the MBMS business is set up, configuration, deletion common cell sign; 2) after NodeB receives this message, send common transmission channel reconfiguration to RNC and put response message.

Put the shared time slot scrambling code information of SCCPCH (Secondary Common Control Physical Channel, auxiliary Common transport channel) of adding the professional correspondence of MBMS in the solicited message unit at common transmission channel reconfiguration, as shown in table 1.At the lower indication information (MBMS SFN Timeslot Scamble Ind) that increases the MBMS business time-slot scrambler of SFN network of auxiliary Common transport channel parameter (SecondaryCCPCH Parameters), content comprises the carrier frequency (UARFCN) at the professional corresponding time slot scrambler (Time Slot Parameter ID) of MBMS, timeslot number (Time Slot LCR) and place.

Table 1: common transmission channel reconfiguration is put the solicited message unit

IE/Group Name

Presence

Range

IE Type and Reference

Semantics Description

Criticality

Assigned Criticality

……

Secondary CCPCH Parameters

0..1

YES

reject

……

>MBMS SFN Timeslot Scamble Ind

O

0..<m axnoofSFN TimeSlot>

>>>Time Slot Parameter ID

M

9.2.3.4

-

>>>Time Slot LCR

M

9.2.3.24 A

-

>>>UARFCN

M

9.2.1.65

-

……

The present embodiment RNC is that the concrete steps that the MBMS business is set up common cell sign under the SFN pattern are:

Step 201:RNC sends Common transport channel to NodeB and sets up request message, sets up the professional corresponding auxiliary Common transport channel SCCPCH of MBMS under the SFN pattern;

Step 202:NodeB replys common signal channel to RNC and sets up response message, finishes the foundation of the SCCPCH of the professional correspondence of MBMS under the SFN pattern;

Step 203:RNC sends common transmission channel reconfiguration to NodeB and puts request message, comprises in the message that the professional corresponding common cell of MBMS identifies the scrambling code information of place time slot;

After step 204:NodeB finishes configuration, reply successful common transmission channel reconfiguration and put response message to RNC;

Step 205:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of configuration MBMS business in the described broadcast.

Specifically, when the MBMS service conversation began after the residential quarter is set up, RNC at first set up the professional needed SCCPCH channel of MBMS by the Common transport channel Establishing process of Iub mouth.

By above step 203 to step 205 as can be known, the configuration of scrambling code information is put flow process by common transmission channel reconfiguration and is finished, for instance, for example need to launch the MBMS business by 2,3,4,5 time-slot code channels on 2010.8 carrier frequency, in the reconfiguration request message that sends so, the UARFCN value of corresponding MBMS SFNTimeslot Scamble Ind is that 10054, Time Slot LCR is respectively 2,3,4,5, and corresponding scrambler resource assignment is to Time Slot Parameter ID.

After NodeB finishes the foundation of common cell sign common cell id under the SFN pattern, receiver can obtain these relevant configuration information of MBMS by the system broadcast message of monitoring sib5, so far just finished the configuration feature of SFN MBMS business time-slot scrambler.

The present embodiment RNC be the concrete steps of the professional change of MBMS scrambler configuration under the SFN pattern details are as follows, wherein, described change comprises three kinds of situations: one, for the MBMS business reconfigures scrambling code information, thereby the corresponding scrambling code information of release portion MBMS business; Two, the professional corresponding common cell sign of deletion MBMS, the professional corresponding scrambling code information of release portion MBMS; Three, the professional corresponding common cell sign of the whole MBMS of deletion discharges the professional corresponding scrambling code information of whole MBMS.

The present embodiment will be described in detail as follows respectively the above three kinds of situation, logically not consist of a complete explanation but this explanation does not affect the present embodiment.

One, reconfigures scrambling code information for the MBMS business.

When scrambler resource is in short supply, need to discharge the professional corresponding time slot scrambler resource of a part of MBMS.Pass through O﹠amp; M (Operation and Maintenance, operation and maintenance) trigger to discharge common transmission channel reconfiguration and puts flow process, finishes the reconfiguring of time slot scrambler of MBMS business.

If need to reconfigure time slot scrambler resource corresponding to MBMS, then the new time slot configuration that cell ID is corresponding fills in common transmission channel reconfiguration and puts in the request message just passable.Specifically, reconfigure in the following steps that scrambling code information is embodied in the present embodiment shown in Figure 2 for the MBMS business:

Step 206:RNC sends common transmission channel reconfiguration to NodeB and puts request message, comprises in the message that RNC is which time slot of residential quarter is reshuffled the common cell sign;

Step 207:NodeB receives after the reconfiguration request, is configured according to common cell identifying resource new in the message, finishes backward RNC and replys successful response message;

Step 208:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of reshuffling the MBMS business in the described broadcast.

For instance, for example the emission of 2,3,4,5 time-slot code channels on original 2010.8 carrier frequency MBMS is professional, has used respectively 2 cover scramblers, the corresponding cover Midamble1 of 2,3 time slots, the corresponding another set of Midamble2 of 4,5 time slots.Need to discharge now the scrambler Midamble1 of 2,3 time slots, the unified Midamble2 that uses of 2,3,4,5 time slots.RNC is in the reconfiguration request message that sends to NodeB so, and corresponding 2,3 time slot Time Slot Parameter ID values also are Midamble2, the carrier frequency information UARFCN value or 10054 that 2,3,4,5 time slots are corresponding.

Two, the professional corresponding common cell sign of deletion MBMS, the professional corresponding scrambling code information of release portion MBMS.In order to achieve this end, the content of the step 206 of the present embodiment and step 207 can change to some extent.

Wherein, step 206 can for: send the common signal channel reconfiguration request message by RNC to NodeB, do not comprise the professional corresponding common cell sign of the MBMS that will delete in the described reconfiguration request message;

Accordingly, step 207 is: NodeB only is configured the common cell sign that not have deletion, then is equivalent to NodeB and has deleted common cell sign on the corresponding time slot, carry out described operation after, NodeB puts response to RNC transmission common transmission channel reconfiguration;

Step 208:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of the MBMS business of reshuffling in the described broadcast.

It is the concrete steps of the professional deletion of MBMS common cell sign under the SFN pattern that above step has consisted of RNC.

For instance, for example, 2,3,4, the 5 time-slot code channels emission MBMS on original 2010.8 carrier frequency is professional, has used respectively 2 cover scramblers, the corresponding cover Midamble1 of 2,3 time slots, the corresponding another set of Midamble2 of 4,5 time slots.Need now to discharge the common cell sign of 2,3 time slots.RNC is in the reconfiguration request message that sends to NodeB so, and MBMS SFN Timeslot ScambleInd only fills in 4,5 gap informations, and Time Slot Parameter ID value is Midamble2, and carrier frequency information UARFCN value is 10054.

Three, the professional corresponding common cell sign of the whole MBMS of deletion discharges the professional corresponding scrambling code information of whole MBMS.

The present invention is by the Common transport channel delete procedure, and the common cell that deletion MBMS business time-slot is corresponding identifies.After the MBMS service ending, when needing to discharge the scrambler resource of whole SFN MBMS business time-slot, RNC sends the Common transport channel deletion request message to NodeB, and the professional corresponding common signal channel of deletion SFN MBMS discharges the professional corresponding scrambling code information of whole MBMS.Specifically, be embodied in the step 209 of the present embodiment shown in Figure 2 to step 210, as follows:

Step 209:RNC sends the Common transport channel deletion request message to NodeB, discharges the professional corresponding common cell sign of MBMS in the SFN network;

After the common signal channel of step 210:NodeB deletion correspondence, send common signal channel deletion response to RNC.

After NodeB successfully deletes Common transport channel SCCPCH corresponding to SFN MBMS business, reply successful Common transport channel deletion response to RNC, just finished the release function of the time slot scrambler of whole MBMS business under the SFN pattern.

Preferred embodiment two:

In the present embodiment, RNC and NodeB set up process by Common transport channel, finish the resource distribution of the common cell sign under the SFN pattern; Put process by common transmission channel reconfiguration, finish resource modifying and the release of the common cell sign under the SFN pattern.

The present embodiment with the difference of preferred embodiment one is: finish the foundation that the professional corresponding common cell of MBMS identifies in the process setting up of Common transport channel.And preferred embodiment one is after Common transport channel is set up, and finishes the foundation that the professional corresponding common cell of MBMS identifies by the common transmission channel reconfiguration process of putting.Like this, the Common transport channel SCCPCH that execution mode two takies in the MBMS business carries out the configuration of time slot scrambler when setting up, and does not need to initiate a common transmission channel reconfiguration again and puts the time slot scrambler configuration that flow process is finished the MBMS business specially.

The process of the present embodiment comprises: 1) the RNC Common transport channel that sends to NodeB is set up in the request message, is the common cell sign common cell id configuration scrambler resource of MBMS business under the SFN pattern; 2) after NodeB receives this message, send Common transport channel to RNC and set up response message, finish the scrambler configuration of MBMS business; 3) the RNC common transmission channel reconfiguration that sends to NodeB is put in the request message, is that the common cell sign of MBMS business under the SFN pattern is revised or discharged scrambler resource; 4) after NodeB receives this message, send common transmission channel reconfiguration to RNC and put response message.

Put in the request message at common transmission channel reconfiguration that to add information unit identical with execution mode one, need to set up at Common transport channel simultaneously and add the shared time slot scrambling code information of the MBMS corresponding SCCPCH of business in the request message, as shown in table 2.Under auxiliary publish control physical channel (Secondary CCPCHs), add the indication information (MBMS SFN Timeslot ScambleInd) of MBMS SFN time slot scrambler, content comprises scrambler (Time Slot Parameter ID), place time slot (Time Slot LCR) and carrier frequency information (UARFCN), and the information content is consistent with execution mode one.

Table 2 Common transport channel is set up the solicited message unit

IE/Group Name

Presence

Range

IE Type and Reference

Semantics Description

Criticality

Assigned Criticality

……

M

YES

ignore

>Secondary CCPCHs

-

……

>>MBMS SFN Timeslot Scamble Ind

O

0..<m axnoofSFN TimeSlot>

>>>Time Slot Parameter ID

M

9.2.3.4

-

>>>Time Slot LCR

M

9.2.3.24 A

-

>>>UARFCN

M

9.2.1.65

-

……

The concrete steps that the residential quarter indicates common cell id are:

Step 301:RNC sends Common transport channel to NodeB and sets up request message, comprises the professional corresponding common cell sign of MBMS common cell id in the described request message;

Step 302:NodeB replys common signal channel to RNC and sets up response message, finishes the foundation that the professional corresponding common cell of MBMS identifies under the SFN pattern;

Step 303:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of configuration MBMS business in the described broadcast;

Specifically, when the MBMS service conversation began after the residential quarter is set up, RNC at first set up the professional needed SCCPCH channel of MBMS by the Common transport channel Establishing process of Iub mouth.RNC is setting up in the request message to NodeB transmission Common transport channel, directly carries the professional corresponding time slot scrambling code information of SFN MBMS.

For instance, for example need to launch the MBMS business by 2,3,4,5 time-slot code channels on 2012.4 carrier frequency, the Common transport channel that sends is so set up in the request message, the UARFCN value of corresponding MBMS SFNTimeslot Scamble Ind is 10062, Time Slot LCR is respectively 2,3,4,5, and corresponding scrambler resource assignment is to Time Slot Parameter ID.

After NodeB finishes foundation, reply successful Common transport channel and set up response message to RNC.So far just finished the configuration feature of SFN MBMS business time-slot scrambler.

When scrambler resource is in short supply, need to discharge time slot scrambler resource corresponding to a part of FSN MBMS.Identical with execution mode one, pass through O﹠amp; M triggers the release common transmission channel reconfiguration and puts flow process, finishes reconfiguring of FSN MBMS time slot scrambler.If need to revise time slot scrambler resource corresponding to FSN MBMS, then new scrambling code information filled in common transmission channel reconfiguration and put in the request message just passable.

Step 304:RNC sends common transmission channel reconfiguration to NodeB and puts request message, comprises in the message that RNC is which time slot of residential quarter is reshuffled the common cell sign;

Step 305:NodeB receives after the reconfiguration request, indicates resource according to common cell new in the message and is configured, and finishes backward RNC and replys successful response message;

Step 306:NodeB issues broadcast to user terminal, comprises time slot and the scrambling code information thereof of reshuffling the MBMS business in the described broadcast;

For instance, for example the emission of 2,3,4,5 time-slot code channels on original 2012.4 carrier frequency MBMS is professional, has used respectively 2 cover scramblers, the corresponding cover Midamble1 of 2,3 time slots, the corresponding another set of Midamble2 of 4,5 time slots.Need to discharge now the scrambler Midamble2 of 4,5 time slots, the unified Midamble1 that uses of 2,3,4,5 time slots.RNC is in the reconfiguration request message that sends to NodeB so, and corresponding 4,5 time slot Time Slot Parameter ID values also are Midamble1, the carrier frequency information UARFCN value or 10062 that 2,3,4,5 time slots are corresponding.NodeB receives after the reconfiguration request, is configured according to scrambler resource new in the message, finishes backward RNC and replys successful response message.

Be the method for the time slot deletion common cell of residential quarter sign, also can still send the common signal channel reconfiguration request message by RNC to NodeB and start.

At this moment, step 304 is: RNC sends the common signal channel reconfiguration request message to NodeB, does not comprise the professional corresponding common cell sign of the MBMS that will delete in the described reconfiguration request message;

Accordingly, step 305 is: NodeB only is configured the common cell sign that not have deletion, and NodeB puts response message to RNC transmission common transmission channel reconfiguration after deleting common cell sign on the corresponding time slot.

For instance, for example the emission of 2,3,4,5 time-slot code channels on original 2010.8 carrier frequency MBMS is professional, has used respectively 2 cover scramblers, the corresponding cover Midamble1 of 2,3 time slots, the corresponding another set of Midamble2 of 4,5 time slots.Need now to discharge the common cell sign of 2,3 time slots.RNC is in the reconfiguration request message that sends to NodeB so, and MBMS SFN Timeslot ScambleInd only fills in 4,5 gap informations, and Time Slot Parameter ID value is Midamble2, and carrier frequency information UARFCN value is 10054.

The present embodiment is identical with embodiment one, by the Common transport channel delete procedure, and the common cell sign of deletion MBMS business time-slot.After the MBMS service ending, when needing to discharge the time slot scrambler resource of whole SFN MBMS business time-slot, RNC sends the Common transport channel deletion request message to NodeB, the professional corresponding common signal channel of deletion SFN MBMS.

Step 307:RNC sends the Common transport channel deletion request message to NodeB, discharges the professional corresponding common cell sign of MBMS in the SFN network;

After the common signal channel of step 308:NodeB deletion correspondence, send common signal channel deletion response to RNC.

After NodeB successfully deletes SCCPCH corresponding to SFN MBMS business, reply successful Common transport channel deletion response to RNC, just finished the release function of the time slot scrambler of whole MBMS business under the SFN pattern.

The present invention adds information field by putting at common transmission channel reconfiguration in the message, put configuration, modification and the deletion action that flow process is finished the professional scrambler resource of MBMS by means of common transmission channel reconfiguration, can the MBMS business time-slot scrambler that needs discharge be discharged, conserve system resources, satisfy application demand, when needs discharge the scrambler resource of whole MBMS business, carry out the release of scrambler resource by the deletion Common transport channel simultaneously, more reasonable with respect to existing method.

Certainly, above-described embodiment is not the further restriction to technical solution of the present invention, and any those of ordinary skill in the art replace or corresponding deformation the technology of the present invention feature being equal to of doing, still within protection scope of the present invention.

Claims

1. the scrambling code collocation method of a multimedia broadcast and multicast service of single carrier frequency network is used for the scrambling code information that the professional corresponding common cell of multimedia broadcast multicast MBMS identifies is configured, and it is characterized in that, said method comprising the steps of:

(2) after NodeB receives described reconfiguration request message, set up the professional corresponding common cell sign of MBMS according to described scrambling code information, and put response message to RNC transmission common transmission channel reconfiguration;

When the MBMS service ending, the used scrambler resource of the time slot of whole MBMS business discharges automatically by deleting corresponding Common transport channel.

2. the method for claim 1 is characterized in that, described method is further comprising the steps of:

3. method as claimed in claim 2 is characterized in that, the MBMS business changes to described in the step (3): corresponding for the MBMS business reconfigures scrambler, the step of the scrambling code information that the professional corresponding common cell of the MBMS of described release change identifies is:

(a1) RNC sends common transmission channel reconfiguration to Node B and puts request message, comprises in the message that the common cell that need to reconfigure scrambling code information identifies corresponding scrambling code information;

4. method as claimed in claim 2, it is characterized in that, the MBMS business changes to described in the step (3): the professional corresponding scrambler of deletion MBMS, and corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is:

(b2) after NodeB finishes the common cell sign foundation that does not have on the corresponding time slot to delete, send common transmission channel reconfiguration to RNC and put response message, finish the foundation that the professional correspondence of MBMS does not have the common cell of deletion to identify.

5. method as claimed in claim 2, it is characterized in that, the MBMS business changes to described in the step (3): delete the professional corresponding scrambler of whole MBMS, corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is:

6. the scrambling code collocation method of a multimedia broadcast and multicast service of single carrier frequency network is used for the scrambling code information that the professional corresponding common cell of multimedia broadcast multicast MBMS identifies is configured, and it is characterized in that, said method comprising the steps of:

(1) radio network controller (RNC) sends Common transport channel to node NodeB and sets up request message, the described scrambling code information that comprises the professional corresponding time slot of MBMS in the request message of setting up;

(2) NodeB receive described set up request message after, set up common cell sign corresponding to MBMS according to described scrambling code information, and send Common transport channel to RNC and set up response message;

7. method as claimed in claim 6 is characterized in that, described method is further comprising the steps of:

8. method as claimed in claim 7 is characterized in that, the MBMS business changes to described in the step (3): corresponding for the MBMS business reconfigures scrambler, the step of the scrambling code information that the professional corresponding common cell of the MBMS of described release change identifies is:

9. method as claimed in claim 7, it is characterized in that, the MBMS business changes to described in the step (3): the professional corresponding scrambler of deletion MBMS, and corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is:

10. method as claimed in claim 7, it is characterized in that, the MBMS business changes to described in the step (3): delete the professional corresponding scrambler of whole MBMS, corresponding, the step of the scrambling code information of the common cell sign of the professional correspondence of MBMS of described release change is: