CN100461876C - A method for frequency layer convergence of the multi-media broadcast and multicast service users - Google Patents
A method for frequency layer convergence of the multi-media broadcast and multicast service users Download PDFInfo
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- CN100461876C CN100461876C CNB2006100637477A CN200610063747A CN100461876C CN 100461876 C CN100461876 C CN 100461876C CN B2006100637477 A CNB2006100637477 A CN B2006100637477A CN 200610063747 A CN200610063747 A CN 200610063747A CN 100461876 C CN100461876 C CN 100461876C
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Abstract
This invention provides one method for multi-media broadcast set service user for frequency layer collection, wherein, the designed frequency point is to support multi-media broadcasting service; the method is to establish multi-media ser broadcast service control signal channel on the non-designed frequency points and for broadcast multi-media set service relative information; the in the non-designed frequency point area user at non-designed user business processes frequency collection to the designed frequency area.
Description
Technical field
The present invention relates to a kind of processing method that provides multimedia broadcast multicast services for the user, refer to a kind of method of the multimedia broadcast multicast services user being carried out frequency layer convergence (Frequency Layer Convergence is hereinafter to be referred as FLC) especially.
Background technology
Multicast and broadcasting are the modes that transmits data from a data source to a plurality of targets.In traditional mobile network, cell broadcaste service (Cell Broadcast Service is hereinafter to be referred as CBS) allows low bit rate data to share broadcast channel to all users' transmissions by the sub-district, and this is a message based business.
Multimedia broadcast multicast services (Multimedia Broadcast Multicast Service, hereinafter to be referred as MBMS) be a kind of multimedia broadcast-multicast service that 3GPP R6 agreement begins to introduce, the difference of it and traditional CBS just is that it can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can support multimedia service, realize the multimedia service multicast and the broadcasting of two-forty to possess bigger bandwidth and better expansibility.This has complied with the trend of following mobile data development undoubtedly.
Yet, because the MBMS service rate is very high, putting multicast communication (Point to Multi-point, hereinafter to be referred as PTM) dedicated channel (the Dedicated Channel of the equal speed of power ratio that consumes under the pattern, hereinafter to be referred as DCH) user will be greatly, therefore working as the MBMS business has transfer of data, even a plurality of MBMS channels is arranged simultaneously when the data of transmission, and it is congested to cause raising of whole cell load to cause easily.This has produced great influence for the general service user in the sub-district, because the MBMS business has occupied the resource that general service can be used.Based on this reason, general operator can use a special carrier frequency to carry for MBMS is professional.
But because MBMS business no matter Idle state, paging channel (Paging Channel, hereinafter to be referred as PCH) or forward access channel (Forward Access Channel, hereinafter to be referred as FACH) attitude is with receiving per family, and these users are independently selected by UE when selecting the sub-district, therefore, how to control on MBMS user in time converges to carrying MBMS business before the professional beginning of MBMS actual transmissions the special carrier frequency and just become a problem that merits attention.
A kind of is the user additionally not to be controlled for the user provides the processing method of MBMS business, the relevant information of broadcasting MBMS business not in the sub-district of not supporting the MBMS business.Yet this method is unfavorable for that the user receives the MBMS business: resident if carry out the unfortunate sub-district of having selected not support the MBMS business of user, this user can't receive the MBMS business forever.
It is the also relevant information of broadcasting MBMS business in the sub-district of not supporting the MBMS business that another kind provides the processing method of MBMS business, but it is resident in the MBMS sub-district need to require to receive the user of MBMS business.The defective of this method is that it has just converged a large number of users in the MBMS sub-district when the MBMS business does not begin actual data transfer as yet, cause the potential user to roll up, the request if these users make a call simultaneously, perhaps the load in MBMS sub-district own is just than higher words, these users' access failure be will cause, user's impression and network performance index influenced.
In view of the foregoing, the present invention proposes a kind of method of MBMS user being carried out frequency layer convergence.
Summary of the invention
The object of the present invention is to provide a kind of method that realizes FLC in overloading frequency network, this method improves user's impression by the control to MBMS user, the reasonable utilization of realization Internet resources.
The object of the invention is achieved through the following technical solutions: a kind of the multimedia broadcast multicast services user carried out the method for frequency layer convergence, comprises and specify frequency to be used for the bearing multimedia broadcast multicast services, wherein,
The webserver receives that the multimedia broadcasting and multicast session begins signaling, knows broadcast multimedia broadcast multicast service attribute;
The webserver determines that the multimedia broadcast-multicast service that will carry out transmits the appointment frequency point cell at place;
Set up the multimedia broadcast multicast services control channel at the non-appointment frequency point cell of alien frequencies adjacent with described appointment frequency point cell and be used for broadcast multimedia broadcast multicast services relevant information, the user who is in non-appointment frequency point cell begins laggard line frequency layer in business and converges to the appointment frequency point cell.
Converge to and specify the user of frequency point cell to disperse at the laggard line frequency layer of the professional end of transmission.
Compared with prior art, the present invention can guarantee in time MBMS user to be converged on the MBMS special carrier frequency before the professional actual transmissions data of MBMS, can guarantee again when temporarily not having the MBMS business data transmission, MBMS user can be distributed in other sub-districts and go, and reduces the potential risk of MBMS sub-district burst surge call.
Description of drawings
Fig. 1 is first kind of existing multimedia broadcast multicast services carrier frequency planning diagram.
Fig. 2 is second kind of existing multimedia broadcast multicast services carrier frequency planning diagram.
Fig. 3 is a FLC schematic flow sheet in the specific embodiment of the invention.
Embodiment
A kind of method of the multimedia broadcast multicast services user being carried out frequency layer convergence of the present invention, comprise and specify frequency to be used for the bearing multimedia broadcast multicast services, set up the multimedia broadcast multicast services control channel at non-appointment frequency point cell and be used for broadcast multimedia broadcast multicast services relevant information, the user that is in non-appointment frequency point cell is begun laggard line frequency layer in business converge to and specify frequency point cell to carry out transfer of data.
Because MBMS broadcasting service resource consumption is big, therefore in the network planning of reality, operator may adopt independent frequency to carry the MBMS business, and a kind of existing carrier frequency planning mode as shown in Figure 1.This planning mode has mainly been considered the continuous covering of MBMS business, so the MBMS service deployment is being realized on the F1 frequency that the whole network covers the quality of service when having guaranteed the reception of MBMS business.
But, this networking scene is unfavorable for traditional R99 user, because the professional consumption of natural resource of MBMS is bigger, therefore at the hot zones of overloading overlapping covering frequently, tradition R99 user tends to have to carry out the alien frequencies gravity treatment because cell load is too high, alien frequencies switches, this will cause the service disconnection influence of can not ignore, and make traditional R99 user experience reduction.
And traditional R99 user's continuous covering has mainly been considered in the planning of another kind of carrier frequency as shown in Figure 2, does not allow MBMS take the local resource of F1 frequency at hot zones, to guarantee traditional R99 user's impression.But this is unfavorable for the MBMS service-user.Because they have to carry out an alien frequencies gravity treatment when entering the hot zones of overloading overlapping covering frequently or the alien frequencies switching could continue to receive the MBMS business, this will cause long service disconnection, influences user's impression.Certainly, this scene comprises that also MBMS only is deployed in the situation on the F2 frequency, and MBMS has only realized that the part of hot zones covers in this case.
Therefore no matter top that a kind of frequency is planned scene, all will cause the reduction of a part of user's impression.And the basic reason of this phenomenon is, residing in one has only the MBMS user of the sub-district of R99 business can't receive the MBMS business, residing in one has the R99 user of too much MBMS user's sub-district can need alien frequencies switching, gravity treatment because cell load is too high, therefore need carry out FLC/FLD to such user and handle.
So-called FLC just is meant when the network planning specifies frequency to carry certain MBMS business with one, just need indicate this frequency and allow all users that need receive this MBMS business automatically gravity treatment in this frequency, especially after transfer of data begins.
In addition, when the professional end of transmission of MBMS, need UE to get back to original resident sub-district automatically or under the management algorithm control of network layer, select not residently,, reduce the risk that user's centralized call causes small area jam with the distribution of dispersion user in other sub-district of specifying frequency.Frequency layer that Here it is is dispersed (FrequencyLayer Dispersion is hereinafter to be referred as FLD), and it is the reverse procedure of FLC.
For the user who guarantees to reside in the R99 sub-district can receive the MBMS business to specifying in the frequency according to the gravity treatment that requires of FLC, we must guarantee also to want the broadcasting MBMS service related information in the R99 sub-district.
Therefore require in the R99 sub-district, also must distribute an auxiliary publish control physical channel (SecondaryCommon Control Physical Channel, hereinafter to be referred as SCCPCH) carry MBMS control channel (MBMS Control Channel specially, hereinafter to be referred as MCCH), also must there be simultaneously corresponding MBMS indicating channel (MBMS Indication Channel is hereinafter to be referred as MICH) to exist.
It is basic identical that the MCCH signaling of R99 sub-district sends the MCCH signaling of the R99+MBMS sub-district that overlaps covering, and its difference is that the R99 sub-district can not set up the SCCPCH of special carrying MBMS Traffic Channel (MBMSTraffic Channel is hereinafter to be referred as MTCH).
In addition,, need to carry out the FLC request, allow user's gravity treatment in the frequency of the MTCH that can carry for the R99 sub-district.The process of this method sees also shown in Figure 3, and is specific as follows:
1. core net issues the MBMS session and begins signaling, and RNC is known relevant MBMS service attribute.Because before core net issues the beginning signaling and after receiving the notice of MBMS conversation end, on the MCCH of sub-district, all do not have the relevant information of MBMS business to occur, so FLC need receive that the MBMS session of core net begins to operate after the notice at RNC.Usually, RNC receives that the MBMS session of core net begins notice and is professional beginning, receives that this session is operating as operation after the professional beginning after beginning to notify.
2.RNC after receiving that the session of core net begins signaling, check in the signaling with " MBMS coverage " cell, determine the sub-district at the professional transmission of the MBMS place that will carry out.Wherein, " MBMS coverage " cell is the tabulation of a maximum length 256 (referring to agreement TS25.413) in fact, has shown the coverage that this MBMS business is broadcasted, and the mapping relations of coverage and concrete sub-district are to pass through O﹠amp in RNC; M carries out parameter configuration.RNC has obtained coverage tabulation and has just known that also which sub-district the MBMS business will broadcast in, and the frequency at these places, sub-district is exactly the appointment frequency of this MBMS business in this geographical position.
3.RNC in pairing sub-district, coverage, set up the MBMS carrying by access.Successfully just on the MCCH of these sub-districts, revise corresponding MBMS business information and begin reception in case the MBMS carrying is set up by the user in the MICH indicating cell.
For the user of alien frequencies adjacent area,, just be necessary FLC is in the alien frequencies adjacent area as long as " FLC sign " cell that the MBMS session begins in the signaling is not configured to " no FLC ".
The FLC process is exemplified below:
A) the sub-district A on the F1 carrier frequency is the sub-district in the coverage, and it is sub-district B on the F2 carrier frequency that sub-district A has an alien frequencies adjacent area, at first checks sub-district B whether in the coverage, if just do not needing operation bidirectional, process finishes.If in the B out of reach territory, sub-district, so for sub-district B, the appointment frequency of this MBMS business is carrier frequency F1.Therefore need on the MCCH of sub-district B, broadcast the relevant information of this MBMS business.
B) in the MBMS of sub-district B essential information signaling, fill in MBMS and specify the frequency point information cell.It should be noted that it is an index in fact that the MBMS that indicates frequency in this cell specifies the frequency cell, if its value is n, refer to n+1 the frequency that occurs in the New inter-frequency cells series in the SIB11 broadcast so, therefore which frequency need find F1 is, correctly fills in then.
C) MBMS that fills in corresponding MBMS business in the MBMS of sub-district B Modified/Unmodified Services Information signaling specifies the frequency cell to point to F1.It should be noted that frequency indices that this cell uses points to the list of frequency in the MBMS essential information signaling, is an indirect index.Because sub-district B does not carry MTCH, therefore only fill in information such as traffic ID, do not fill in RB information, and require the cell of UE action to be made into none MBMS, MBMS also to be set according to the configuration of sub-district disperse indication (generally being defaulted as TRUE).
D) user who needs to receive the MBMS business among the B of sub-district initiates gravity treatment to carrier frequency F1, sets up the MBMS carrying.
Here may have a kind of special circumstances, that be exactly sub-district B to also have an alien frequencies adjacent area be the sub-district C that is positioned at the F3 carrier frequency, sub-district C also in the coverage of same MBMS business, so sub-district B this how appointment frequency of same MBMS business is set.The present invention does not stipulate, can not consider in addition in the realization, because any setting all is rational yet.
Need to prove, Modified mentioned above is at different Modification Period's with Unmodified, same content belongs to Modified at previous Modification Period, just become Unmodified at a back Modification Period, therefore in the description above Modified and Unmodified put together description, explanation hereby.
4.MBMS behind user's end session, RNC makes the user get back to the sub-district of stationing originally automatically by the FLD process opposite with FLC.
The present invention proposes the method that realizes FLC in a kind of overloading frequency network, by in not supporting the R99 sub-district of MBMS, increasing MCCH, but do not set up the mode of MTCH, making in traditional R99 sub-district can the broadcasting MBMS service related information, can not take too much local resource again simultaneously.When the MBMS business began actual transfer of data, the MBMS information in the R99 sub-district in time required MBMS user to initiate the sub-district gravity treatment, converges in the MBMS service-specific carrier frequency.After the session of MBMS service ending, MBMS user can come back to the sub-district of stationing originally again, reduces the potential hazard of MBMS sub-district burst surge call.
In addition, the service list that the present invention can issue according to core net is necessary FLC for the alien frequencies adjacent area.RNC only needs the mapping relations of maintenance service zone and sub-district, has avoided specifying the loaded down with trivial details and inconvenient of frequency at each business configuration.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. one kind is carried out the method for frequency layer convergence to the multimedia broadcast multicast services user, comprises and specifies frequency to be used for the bearing multimedia broadcast multicast services, it is characterized in that:
The webserver receives that the multimedia broadcasting and multicast session begins signaling, knows broadcast multimedia broadcast multicast service attribute;
The webserver determines that the multimedia broadcast-multicast service that will carry out transmits the appointment frequency point cell at place;
Set up the multimedia broadcast multicast services control channel at the non-appointment frequency point cell of alien frequencies adjacent with described appointment frequency point cell and be used for broadcast multimedia broadcast multicast services relevant information, the user who is in non-appointment frequency point cell begins laggard line frequency layer in business and converges to the appointment frequency point cell.
2. the method that the multimedia broadcast multicast services user is carried out frequency layer convergence as claimed in claim 1 is characterized in that: converge to and specify the user of frequency point cell to disperse at the laggard line frequency layer of the professional end of transmission.
3. the method that the multimedia broadcast multicast services user is carried out frequency layer convergence as claimed in claim 2 is characterized in that: converge to the user who specifies frequency point cell and get back to original resident sub-district automatically after the professional end of transmission.
4. the method that the multimedia broadcast multicast services user is carried out frequency layer convergence as claimed in claim 2 is characterized in that: converge to the user who specifies frequency point cell and select not resident in other sub-district of specifying frequency under the management algorithm control in network layer after the professional end of transmission.
5. the method that the multimedia broadcast multicast services user is carried out frequency layer convergence as claimed in claim 1 is characterized in that: core net issues described multimedia broadcasting and multicast session to the webserver and begins signaling.
6. method of the multimedia broadcast multicast services user being carried out frequency layer convergence as claimed in claim 5, it is characterized in that: the webserver is set up the multimedia broadcasting and multicast carrying at described appointment frequency point cell, on control channel, revise multimedia broadcast multicast service, and indicate the user in the described appointment frequency point cell to begin to receive by indicating channel.
7. method of the multimedia broadcast multicast services user being carried out frequency layer convergence as claimed in claim 1, it is characterized in that: as long as the multimedia broadcasting and multicast session begins signaling and can not converge by the frequency of utilization layer without limits, if frequency layer convergence is just done to the alien frequencies adjacent area in out of reach territory, alien frequencies adjacent area.
8. method of the multimedia broadcast multicast services user being carried out frequency layer convergence as claimed in claim 7, it is characterized in that: this method is included in to fill in the multimedia broadcasting and multicast essential information signaling of described alien frequencies adjacent area specifies the frequency point information cell, and this appointment frequency point information cell points to described appointment frequency.
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| CN104993918A (en) * | 2008-03-05 | 2015-10-21 | Idtp控股公司 | Method executed via wireless station and wireless station |
| US8780798B2 (en) * | 2008-03-05 | 2014-07-15 | Telefonaktiebolaget L M Ericsson (Publ) | Method and devices for providing enhanced signaling |
| CN101742406B (en) * | 2008-11-21 | 2013-05-01 | 中兴通讯股份有限公司 | Terminal and method for acquiring MBMS service configuration information by using same |
| CN101801068B (en) * | 2009-02-10 | 2012-04-25 | 电信科学技术研究院 | Determination method and device for cell reelect primary rate interface (PRI) |
| WO2012003633A1 (en) * | 2010-07-07 | 2012-01-12 | 中兴通讯股份有限公司 | Method, system and radio side network element for implementing multi-user shared service |
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| WO2005101886A2 (en) * | 2004-04-16 | 2005-10-27 | Nokia Corporation | Frequency layer convergence method for mbms |
| WO2006019243A1 (en) * | 2004-08-19 | 2006-02-23 | Lg Electronics Inc. | Terminal distribution control for point- to-multipoint service in wireless communication system |
| EP1638359A1 (en) * | 2004-09-15 | 2006-03-22 | Samsung Electronics Co., Ltd. | Handover method and apparatus for a UE (user equipment) using the FLC (frequency layer convergence) protocol in a MBMS (multimedia broadcast/multicast system) system |
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