CN102857865A - Method for receiving MBMS (Multimedia Broadcast Multicast Service) in multi-carrier system and user equipment - Google Patents
Method for receiving MBMS (Multimedia Broadcast Multicast Service) in multi-carrier system and user equipment Download PDFInfo
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- CN102857865A CN102857865A CN2011101797347A CN201110179734A CN102857865A CN 102857865 A CN102857865 A CN 102857865A CN 2011101797347 A CN2011101797347 A CN 2011101797347A CN 201110179734 A CN201110179734 A CN 201110179734A CN 102857865 A CN102857865 A CN 102857865A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1886—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with traffic restrictions for efficiency improvement, e.g. involving subnets or subdomains
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/40—Connection management for selective distribution or broadcast
Abstract
The invention discloses a method for receiving an MBMS (Multimedia Broadcast Multicast Service) in a multi-carrier system and user equipment (UE). The method comprises the steps that the UE working or residing in a first component carrier receives control information of the MBMS borne by a second component carrier in the first component carrier; the UE determines a sending condition of the interested MBMS in the second component according to the control information; the UE judges whether the interested MBMS is received in the second component carrier according to the determined sending condition; and if so, the UE receives the interested MBMS in the second component carrier. According to the invention, the problem that the interested MBMS is lost by the UE is solved, and the function of the multi-carrier system is enhanced.
Description
Technical field
The present invention relates to the communications field, particularly, relate to receiving multimedia broadcast multicast service in a kind of multicarrier system method and the subscriber equipment (User Equipment, UE) of (Multimedia Broadcast Multicast Service is called for short MBMS).
Background technology
Along with the fast development of the Internet and popularizing of large-screen multi-functional mobile phone, a large amount of Mobile data multimedia services and various high bandwidth multimedia service have appearred, such as: video conference, television broadcasting, video request program, video ads, online education, interactive game etc., not only satisfy the business demand that the mobile subscriber constantly rises, also brought new business growth point for mobile operator simultaneously.These Mobile data multimedia services require a plurality of users can receive simultaneously identical data, compare with general data service, have the characteristics such as data volume is large, longer duration, delay sensitive.In order to effectively utilize mobile network resource, third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) to have proposed MBMS professional, this business is a kind of technology that transmits data from a data source to a plurality of targets, realize sharing of network (comprising core net and Access Network) resource, improved the utilance of Internet resources (especially air interface resource).The MBMS business of 3GPP definition not only can realize classes of messages multicast and the broadcasting of plain text low rate, can also realize broadcasting and the multicast of high-speed multimedia business, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, for the development of 3G (3rdGeneration, third generation digital communication) provides better professional prospect.
At LTE (Long Term Evolution, Long Term Evolution)-A in, introduced the multi-carrier polymerizing technology, namely a position is covered by the carrier wave of a plurality of different frequencies (section), can be continuous or discrete between these carrier frequencies, it be that a UE sends data that network side uses two or more carrier waves simultaneously.UE is receive data on two or more carrier wave simultaneously.According to present agreement, the multi-carrier polymerizing technical stipulation is as follows:
1) each UE supports the polymerization of (Component Carrier is called for short CC) of 2 component carriers at least;
2) network side is that UE distributes indication which is the main plot (Primary Cell is called for short Pcell) of this UE, and which is the auxiliary residential quarter (Secondary Cell is called for short Scell) of this UE;
3) UE of idle condition resides among the Pcell of oneself;
4) Pcell is in state of activation all the time;
5) network side can be closed the Scell of (also claiming also to represent deexcitation with deactivate) and unlatching (also claim to activate, also represent with activate) UE;
6) UE does not receive Physical Downlink Control Channel (Physical Downlink Control Channel is called for short PDCCH) in the Scell that closes;
7) UE does not receive Physical Downlink Shared Channel (Physical Downlink Shared Channel is called for short PDSCH) in the Scell that closes;
8) UE does not carry out channel quality indication (Channel Quality Indicator the is called for short CQI) measurement of descending carrier in the Scell that closes;
9) Scell initial default state is deexcitation;
10) UE only receives broadcast system information (Broadcast Control Channel is called for short BCCH) and beep-page message (Paging message) in Pcell;
11) UE does not retrieve the Catalog Search zone of PDCCH etc. in Scell.
Based on above-mentioned regulation, the problem below when UE receives the MBMS business, existing, particular problem is described below:
UE access multicarrier system selects a certain component carrier to access at random, so the access chance of each component carrier equates in theory, and the UE quantity in each component carrier is average.Professional for receiving MBMS, UE can be in RRC (Radio Resource Control, Radio Resource control) connection status, also can be in the RRC idle condition; Wherein, the general selection of the UE of idle condition resides in a certain component carrier, and the UE of connection status generally is the UE that is carrying out interaction data with the base station, and therefore, the base station knows which component carrier UE is in.
Suppose in a carrier aggregation system, 3 component carriers are arranged, be designated as respectively component carrier 1 (CC1), component carrier 2 (CC2), component carrier 3 (CC3), according to present agreement, to only in a CC, dispose and send the MBMS business, do not provide MBMS professional among other CC, in order to issue the MBMS business by simple mode.Based on this, suppose only in CC1, to provide MBMS professional, all there is not the professional transmission of MBMS among CC2 and the CC3, if UE work or resident in CC1, then this UE can receive the MBMS business from CC1.If but UE works or resides among CC2 or the CC3, then this UE can't receive the MBMS business among the CC1, it is professional to cause UE to lose the MBMS of (interested or interesting) interested, and wherein interested MBMS business refers to required or the MBMS business paid close attention to etc.
Lose the problem of interested MBMS business for UE in the correlation technique, not yet propose at present effective solution.
Summary of the invention
Main purpose of the present invention is to provide method and the subscriber equipment that receives MBMS in a kind of multicarrier system, loses the problem of interested MBMS business to solve at least above-mentioned UE.
According to an aspect of the present invention, provide in a kind of multicarrier system the method that receives MBMS, having comprised: worked or reside in UE in the first component carrier receives the MBMS business of second component carriers carry in the first component carrier control information; UE determines the transmission situation of interested MBMS business in the second component carrier wave according to control information; It is professional that UE judges whether to receive interested MBMS in the second component carrier wave according to the transmission situation of determining; If so, UE receives interested MBMS business in the second component carrier wave.
Above-mentioned control information is information and/or the Multicast Channel schedule information (MSI) in the multicast control channel (MCCH).
Above-mentioned UE determines that according to control information the transmission situation of interested MBMS business comprises: when comprising in the control information that UE receives that interested MBMS business is about to the session start information of the session information that begins to send or interested MBMS business, UE determines that the transmission situation of interested MBMS business sends for beginning; UE judges whether to receive interested MBMS business according to the transmission situation of determining and comprises in the second component carrier wave: when UE determined that interested MBMS business begins to send, it is professional that UE determines to receive interested MBMS in the second component carrier wave.
Above-mentioned UE receives interested MBMS business and comprises one of following mode in the second component carrier wave: UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data and control information; UE is by in carrier wave gravity treatment or the switching mode access second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave; UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data, continues receiving control information in the first component carrier.
Above-mentioned UE application multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data comprise: when the multi-carrier polymerizing ability of UE was not fully used, UE used the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data; UE is by in carrier wave gravity treatment or the switching mode access second component carrier wave, receiving interested MBMS business in the second component carrier wave comprises: when the multi-carrier polymerizing ability of UE is fully used or UE when not having the multi-carrier polymerizing ability, UE is by in carrier wave gravity treatment or the switching mode access second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave.
Above-mentioned UE is by in carrier wave gravity treatment or the switching mode access second component carrier wave, receiving interested MBMS business in the second component carrier wave comprises: the priority that UE arranges the second component carrier wave is limit priority, and the mode by component carrier gravity treatment or switching receives interested MBMS business in the second component carrier wave.
The control information of above-mentioned MBMS business is transmitted in the first component carrier and second component carrier wave, and the business datum of MBMS business is transmitted in the second component carrier wave.
Above-mentioned UE is in the radio resource control RRC connection status; Perhaps, UE is in the RRC idle condition in the first component carrier.
According to a further aspect in the invention, provide a kind of subscriber equipment, having comprised: the control information receiver module when being used for work or residing in the first component carrier, receives the control information of the MBMS business of second component carriers carry in the first component carrier; Professional determination module is used for determining that according to the control information that the control information receiver module receives interested MBMS business is in the transmission situation of second component carrier wave; Professional judge module, it is professional to be used for judging whether to receive interested MBMS at the second component carrier wave according to the transmission situation that professional determination module is determined; Professional receiver module, the judged result that is used for professional judge module receive interested MBMS business when being in the second component carrier wave.
Above-mentioned professional determination module comprises: begin to send determining unit, be used for when control information that the control information receiver module receives comprises that interested MBMS business is about to the session start information of the session information that begins to send or interested MBMS business, determining that the transmission situation of interested MBMS business is for beginning transmission; Professional judge module comprises: the professional determining unit that receives is used for determining to receive interested MBMS business in the second component carrier wave when beginning to send determining unit and determine that interested MBMS business begins to send.
It is one of following that above-mentioned professional receiver module comprises: the first business receive unit, when being used for work or residing in the first component carrier, use the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data and control information; The second business receive unit is used for by carrier wave gravity treatment or switching mode access second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave; The 3rd business receive unit when being used for work or residing in the first component carrier, is used the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data, continues receiving control information in the first component carrier.
Above-mentioned the first business receive unit and the 3rd business receive unit include: the first receive mode chooser unit, be used for when the multi-carrier polymerizing ability of subscriber equipment is not fully used, using the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data; The second business receive unit comprises: the second receive mode chooser unit, be used for fully using or UE when not having the multi-carrier polymerizing ability when the multi-carrier polymerizing ability of subscriber equipment, in carrier wave gravity treatment or switching mode access second component carrier wave, it is professional to receive interested MBMS in the second component carrier wave.
By the present invention, employing receives the control information of MBMS business in current component carrier, it is professional to receive this MBMS according to this control information at the component carrier that receives the MBMS business, UE just can determine at any time whether network side will send or send self interested MBMS business like this, and then can realize that UE receives the MBMS business in inoperative or the non-resident carrier, solve the problem that UE loses interested MBMS business, strengthened the function of system.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is according to the method flow diagram that receives MBMS in the multicarrier system of the embodiment of the invention 1;
Fig. 2 is the system schematic with 3 component carrier polymerizations of the example 1-3 according to the present invention;
Fig. 3 is the structured flowchart according to the subscriber equipment of the embodiment of the invention 2;
Fig. 4 is the concrete structure block diagram according to the subscriber equipment of the embodiment of the invention 2.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention considers in the multi-carrier aggregation system that UE may not work or be resident, and is professional in order to prevent causing in this case UE to lose interested MBMS in the component carrier that receives the MBMS business.Based on this, present embodiment provides method and the subscriber equipment (UE) that receives MBMS in a kind of multicarrier system, and wherein MBMS is also referred to as the MBMS business.
Embodiment 1
Present embodiment provides the method that receives MBMS in a kind of multicarrier system, and referring to Fig. 1, the method may further comprise the steps (step S102-step S106):
Step S102 works or resides in UE in the first component carrier receives the MBMS business of second component carrier wave (also can be called component carrier 2) carrying in the first component carrier (also can be called component carrier 1) control information;
The first component carrier and second component carrier wave are two different component carriers in the system in the present embodiment.MBMS transmission professional (for example, business datum) and corresponding control information thereof in the second component carrier wave, the control information of each MBMS business is combined usually.
Step S104, UE determines the transmission situation of interested MBMS business in the second component carrier wave according to above-mentioned control information;
Wherein, required or MBMS business of paying close attention to of the interested MBMS business user that refers to UE etc.;
Step S106, it is professional that UE judges whether to receive above-mentioned interested MBMS in the second component carrier wave according to above-mentioned definite transmission situation;
Step S108, if so, UE receives above-mentioned interested MBMS in the second component carrier wave professional.
By method shown in Figure 1 as can be known, work or reside in UE in the component carrier 1, in component carrier 1, receive the control information of the MBMS business of the carrying in the component carrier 2, and according to the control information that receives, UE judges the own transmission situation of interested MBMS business in component carrier 2, and it is professional then to receive interested MBMS in component carrier 2.
The UE of present embodiment is by receiving the control information of MBMS business in current component carrier, it is professional to receive this MBMS according to this control information at the component carrier that receives the MBMS business, UE just can determine at any time whether network side will send or send self interested MBMS business like this, and then can realize that UE receives the MBMS business in inoperative or the non-resident carrier, solve the problem that UE loses interested MBMS business, strengthened the function of system.
Wherein, above-mentioned control information is information and/or the MSI (MCH Scheduling Information, Multicast Channel schedule information) among the MCCH (Multimedia Control Channel, multicast control channel).
Wherein, above-mentioned transmission situation refers to, whether the session of interested MBMS business begins and/or whether interested MBMS business is about to that session begins and/or interested MBMS business conversation end whether.Based on this, above-mentioned UE determines that according to control information the transmission situation of interested MBMS business comprises: when comprising in the control information that UE receives that interested MBMS business is about to the session start information of the session information that begins to send or interested MBMS business, UE determines that the transmission situation of interested MBMS business sends for beginning; Based on this, UE judges whether to receive interested MBMS business according to the transmission situation of determining and comprises in the second component carrier wave: when UE determined that above-mentioned interested MBMS business begins to send, it is professional that UE determines to receive this interested MBMS in the second component carrier wave.
Above-mentioned UE can be RRC (Radio Resource Control, Radio Resource control) connection status, also can be the RRC idle condition.
When judging receive mode, UE can consider following factor: according to own residing state (RRC connects and the RRC free time) and whether have carrier aggregation capacity, and whether carrier aggregation capacity is fully used etc., determine that the employing carrier aggregation capacity receives the MBMS business and do not change present work or resident component carrier in the second component carrier wave, or receive the MBMS business by switching or gravity treatment in the second component carrier wave, UE has just changed own work or resident component carrier under this mode.
This UE receives above-mentioned interested MBMS business and comprises one of following mode in the second component carrier wave:
1) UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives described interested MBMS business in the second component carrier wave data and above-mentioned control information (being the control information of each MBMS business);
2) UE is by carrier wave gravity treatment or switching mode access second component carrier wave, and it is professional to receive above-mentioned interested MBMS in the second component carrier wave;
3) UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data, continues to receive in the first component carrier above-mentioned control information.
In the present embodiment, UE can determine first current self multi-carrier polymerizing ability (for example, having or not multi-carrier polymerizing ability etc.), according to determinate multitudes carrier aggregation capacity selective reception mode; UE receives this interested MBMS according to above-mentioned receive mode in the second component carrier wave professional.Wherein, UE comprises according to the determinate multitudes carrier aggregation capacity receives interested MBMS business in the second component carrier wave data: when the multi-carrier polymerizing ability of UE was not fully used, UE used the multi-carrier polymerizing ability and receive interested MBMS business in the second component carrier wave; Fully use or UE when not having the multi-carrier polymerizing ability when the multi-carrier polymerizing ability of UE, UE is by in carrier wave gravity treatment or the switching mode access second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave.
When UE accesses in the second component carrier wave by carrier wave gravity treatment or switching mode, the priority that UE can arrange the second component carrier wave is limit priority, mode by component carrier gravity treatment or switching accesses in the second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave.
In the present embodiment, what transmit in the first component carrier is the control information of the MBMS business in the second component carrier wave, and does not transmit the MBMS business datum in the second component carrier wave.For example, what transmit in the first component carrier is that control information in the second component carrier wave is the session information that is about to the MBMS business that begins to send in the second component carrier wave, and does not transmit the MBMS business datum in the second component carrier wave.
The control information of the MBMS business in the present embodiment is transmitted in the first component carrier and second component carrier wave, and the business datum of MBMS business is transmitted in the second component carrier wave.
When UE resides in the first component carrier, find by the control information in the first component carrier whether interested MBMS business begins transmission in the second component carrier wave.Perhaps, UE determines whether receiving the MBMS business according to the session start information that whether comprises interested MBMS business in the control information that receives in the first component carrier in the second component carrier wave; When the control information of UE in the first component carrier found to have comprised the session start information of the interested MBMS business of UE, it is professional that the UE gravity treatment receives interested MBMS to the second component carrier wave.Wherein, the UE gravity treatment receives interested MBMS business to the second component carrier wave and can be specially: UE second component carrier wave is set to the highest preferential gravity treatment component carrier and carries out gravity treatment.
For save the power consumption on the UE, Cai only gravity treatment or switch in the second component carrier wave when the session start information of interested MBMS business in the first component carrier, occurring of the UE of present embodiment.
The control information of transmitting in above-mentioned the first component carrier is identical with the control information in the second component carrier wave.
When reality realized, UE can be work or reside in the first component carrier that the UE that for example is in the RRC connection status is operated in the first component carrier; The UE that perhaps is in the RRC idle condition resides in the first component carrier.
Present embodiment has realized that by the method for reseptance of above-mentioned MBMS business UE receives the problem of MBMS business in inoperative or non-resident component carrier, and simultaneously, the method realizes simple, is easy to the UE side and realizes.Aforesaid way 1) having avoided the UE of connection status to work to sends in the component carrier of MBMS business, only need to be at current component carrier receiving control information, just carry out the MBMS business datum when judging the professional scheduling transmission of MBMS in the MBMS component carrier and receive, help to help the UE power saving.
When having multi-carrier polymerizing ability and work or residing in UE in the component carrier 1, find that according to the control information that in component carrier 1, receives interested MBMS business has sent in the component carrier 2, how this class UE processes so.At first since the multi-carrier polymerizing ability of UE have have by force a little less than, for example have some UE can 5 component carriers of polymerization, some UE can only 2 component carriers of polymerization.When the multi-carrier polymerizing ability of UE is not fully used, UE pays the utmost attention to the application carrier aggregation capacity and receive the MBMS business datum from component carrier 2 so, and continuation keeps receiving control information from component carrier 1, this mode is particularly suitable for the UE of RRC connection status, because can avoid the unicast service of UE to interrupt or mutual with network side.Also can adopt this mode to carry out professional reception of MBMS in the component carrier 2 for the UE of RRC idle condition.If the carrier aggregation capacity of UE fully uses, the ability that has 2 component carriers of polymerization such as UE, and polymerization of UE is operated in two component carriers and has suffered, component carrier 2 is the 3rd component carrier for UE so, and this moment, UE select to switch or the reception of MBMS business is carried out in gravity treatment in the component carrier 2 so.For the UE that does not have the multi-carrier polymerizing ability, can only be that gravity treatment receives the MBMS business in component carrier 2 in addition.In addition in order to guarantee that smoothly gravity treatment of UE is in component carrier 2, so when the control information of UE from component carrier 1 finds that interested MBMS business begins in the component carrier 2, the UE automatically priority level of component carrier 2 is set to the highest gravity treatment component carrier (or residential quarter, wherein, component carrier is corresponding with the residential quarter).Like this when UE carries out gravity treatment, as long as component carrier 2 channel qualities meet the demands, so UE just smoothly gravity treatment in component carrier 2.
Above-mentioned component carrier 1 and component carrier 2 are two different component carriers in the system, component carrier 1 can be the component carrier of bearing MBMS service, also can be the component carrier of bearing MBMS service not, the MBMS business in the present embodiment comprise the MBMS business datum with and corresponding control information.In component carrier 1, also can only send the information of the MBMS business that being about in the component carrier 2 begin to send.In component carrier 1, also can carry and component carrier 2 identical control informations.
In addition, professional for the MBMS that does not begin to send, only have when UE finds that this MBMS service conversation begins in component carrier 1, UE just gravity treatment receives the MBMS business in component carrier 2.So just can avoid the too early gravity treatment of UE in component carrier 2, thereby avoid the too much UE of the too early gathering of component carrier and the possibility of the potential uplink random access procedure conflict that brings increases.
Professional for the MBMS that is just sending in component carrier 2, when UE finds the session information of this MBMS business in component carrier 1, UE will carry out and receive this MBMS business in component carrier 2.Like this can be so that the UE in the access component carrier 1 in time carries out the interested MBMS business in the component carrier 2 that receives.
Component carrier in the embodiment of the invention is corresponding with the residential quarter, and component carrier also can refer to the residential quarter.Below by following several examples said method is described.
Example 1
Suppose to have a carrier aggregation system, the system with 3 component carrier polymerizations as shown in Figure 2, wherein 3 component carriers are designated as respectively CC1, CC2 and CC3, wherein only select CC1 to come MBMS transmission professional, comprise MBMS business datum and corresponding control information, transferring MBMS service data not among CC2, the CC3.
Suppose that a certain UE is in the RRC connection status, be operated in the component carrier 2, and this UE carrier aggregation capacity is a while polyase 13 component carrier, this moment, this UE just used component carrier 2 and component carrier 3 transmission unicast services, and this UE also is interested for the MBMS business in the component carrier 1, and just the interested MBMS of UE does not also begin to send in component carrier 1.So according to the present invention, (wherein CC2 is its Pcell to UE in component carrier 2 and the component carrier 3 owing to being operated in, another is the Scell that activates), UE receives the control information in the described component carrier 1 from Pcell so, control information comprises the session information of the MBMS business that is sending, when UE finds that from the control information that receives the session information of own interested MBMS business is comprised in the described control information, UE then is judged as the professional beginning of interested MBMS and has sent in component carrier 1, this moment, UE used carrier aggregation capacity to receive the MBMS business datum from component carrier 1 so, and kept receiving control information from component carrier 1.
Example 2
UE carrier aggregation capacity in this example hypothesis instance 1 is limited, for example support 2 component carriers of polymerization, this moment, UE did not have unnecessary ability support to receive the MBMS business datum by polymerizing power again from component carrier 1 so, this moment, UE triggered switching flow, by residential quarter switching mode work in component carrier 1, from component carrier 1, receive the MBMS business, comprise control information and business datum.In this example, after finding interested MBMS service conversation start information in the control information of UE from component carrier 2, UE just triggers and switches in the component carrier 1, because too early switching meeting increases burden to the load of component carrier 1.And during switching, UE can be the component carrier of bearing MBMS service as the highest handoff candidate carrier wave of priority level.
Example 3
Suppose to have a carrier aggregation system, this example is take the system with 3 component carrier polymerizations shown in Figure 2 as example, wherein, 3 component carriers are designated as respectively CC1, CC2 and CC3, wherein only select CC1 to come MBMS transmission professional, comprise MBMS business datum and corresponding control information, transferring MBMS service data not among CC2, the CC3.
Suppose that a certain UE is in the RRC idle condition, reside in the component carrier 2, and this UE carrier aggregation capacity is a while polyase 13 component carrier, so this moment is not because this UE has unicast service only to reside in the component carrier 2, and this UE also is interested for the MBMS business in the component carrier 1, and just the interested MBMS of UE does not also begin to send in component carrier 1.So according to the method among the embodiment 1, UE is owing to reside in component carrier 2, then UE receives the control information in the described component carrier 1 from component carrier 2, this control information comprises the session information of the MBMS business that is sending, when UE finds that from the control information that receives the session information of own interested MBMS business is comprised in this control information, UE then is judged as the professional beginning of interested MBMS to begin to have sent in component carrier 1, this moment, UE used carrier aggregation capacity to receive the MBMS business datum from component carrier 1, and kept receiving control information from component carrier 1.This moment, UE was owing to be in the RRC idle condition, thus only can reside in the one-component carrier wave, thus as long as having carrier aggregation capacity, UE then in the target component carrier wave, receives the MBMS business by carrier aggregation capacity, and do not carry out gravity treatment in component carrier 1.The probability that can avoid so a large amount of UE to conflict when thereby the UE that has increased in the component carrier 1 in the component carrier 1 carries out the uplink random access owing to professional and a large amount of the residing in of MBMS that receives in the component carrier 1.
Example 4
This example is basic identical with example 3, and just the UE in this example does not have carrier aggregation capacity, and is the RRC idle condition, and resident component carrier is not component carrier 1.In such cases, in this example, adopt UE triggering cell reuse adoption process, and the priority level of the component carrier of bearing MBMS service is set to the re-selecting cell highest level, can guarantee like this UE under equal conditions preferentially gravity treatment in component carrier 1.And be the opportunity of gravity treatment when finding interested MBMS business in the control information that UE receives from resident component carrier session begins in component carrier 1.
Embodiment 2
Present embodiment provides a kind of user equipment (UE), and referring to Fig. 3, this subscriber equipment comprises with lower module:
Control information receiver module 32 when being used for work or residing in the first component carrier, receives the control information of the MBMS business of second component carrier wave (also can be called component carrier 2) carrying in the first component carrier;
The first component carrier and second component carrier wave are two different component carriers in the system in the present embodiment.MBMS transmission professional (for example, business datum) and corresponding control information thereof in the second component carrier wave;
Work or reside in UE in the component carrier 1, in component carrier 1, receive the control information of the MBMS business of the carrying in the component carrier 2, and according to the control information that receives, UE judges the own transmission situation of interested MBMS business in component carrier 2, and it is professional then to receive interested MBMS in component carrier 2.
The UE of present embodiment is by receiving the control information of MBMS business in current component carrier, it is professional to receive this MBMS according to this control information at the component carrier that receives the MBMS business, UE just can determine at any time whether network side will send or send self interested MBMS business like this, and then can realize that UE receives the MBMS business in inoperative or the non-resident carrier, solve the problem that UE loses interested MBMS business, strengthened the function of system.
Wherein, above-mentioned control information is information and/or the MSI information among the MCCH.
Referring to Fig. 4, present embodiment also provides a kind of subscriber equipment, this subscriber equipment comprises modules shown in Figure 3, simultaneously, professional determination module 34 in this subscriber equipment comprises: begin to send determining unit 342, be used for when control information that control information receiver module 32 receives comprises that interested MBMS business is about to the session start information of the session information that begins to send or interested MBMS business, determining that the transmission situation of interested MBMS business is for beginning transmission; Professional judge module 36 comprises: the professional determining unit 362 that receives is used for determining to receive interested MBMS business in the second component carrier wave when beginning to send determining unit and determine that interested MBMS business begins to send.
Wherein, above-mentioned professional receiver module 38 comprises: professional receiver module comprises one of following: the first business receive unit, when being used for work or residing in the first component carrier, use the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data and above-mentioned control information; The second business receive unit is used for by carrier wave gravity treatment or switching mode access second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave; The 3rd business receive unit when being used for work or residing in the first component carrier, is used the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data, continues to receive in the first component carrier above-mentioned control information.
Perhaps, professional receiver module 38 comprises: polymerizing power is determined subelement, be used for to determine current self multi-carrier polymerizing ability; Receive mode chooser unit is used for determining subelement determinate multitudes carrier aggregation capacity selective reception mode according to polymerizing power; The professional subelement that receives, it is professional that the receive mode that is used for selecting according to receive mode chooser unit receives interested MBMS at the second component carrier wave.
Above-mentioned the first business receive unit and the 3rd business receive unit include: the first receive mode chooser unit, be used for when the multi-carrier polymerizing ability of subscriber equipment is not fully used, using the multi-carrier polymerizing ability receives interested MBMS business in the second component carrier wave data; Above-mentioned the second business receive unit comprises: the second receive mode chooser unit, be used for fully using or UE when not having the multi-carrier polymerizing ability when the multi-carrier polymerizing ability of subscriber equipment, access in the described second component carrier wave by carrier wave gravity treatment or switching mode, it is professional to receive interested MBMS in the second component carrier wave.
The receive mode of selecting as UE is when receiving interested MBMS business by the carrier wave reselection modes in the second component carrier wave, the priority that UE can arrange the second component carrier wave is limit priority, mode by component carrier gravity treatment or switching accesses in the described second component carrier wave, and it is professional to receive interested MBMS in the second component carrier wave.
In the present embodiment, what transmit in the first component carrier is the control information of the MBMS business in the second component carrier wave, and does not transmit the MBMS business datum in the second component carrier wave.For example, what transmit in the first component carrier is that control information in the second component carrier wave is the session information that is about to the MBMS business that begins to send in the second component carrier wave, and does not transmit the MBMS business datum in the second component carrier wave.
The control information of the MBMS business in the present embodiment is transmitted in the first component carrier and second component carrier wave, and the business datum of MBMS business is transmitted in the second component carrier wave.
The subscriber equipment that present embodiment provides can be applied in the method in above-described embodiment 1, and the specific implementation process repeats no more.
As can be seen from the above description, above embodiment is by receiving the control information of MBMS business in current component carrier, it is professional to receive this MBMS according to this control information at the component carrier that receives the MBMS business, realized that UE receives the problem of MBMS business in inoperative or non-resident component carrier, simultaneously, the method realizes simple, is easy to the UE side and realizes.Use the mode that carrier aggregation capacity receives the MBMS business, avoided the UE of connection status to work to and sent in the component carrier of MBMS business, only need to be at current component carrier receiving control information, just carry out the MBMS business datum when judging the professional scheduling transmission of MBMS in the MBMS component carrier and receive, help to help the UE power saving.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the method for receiving multimedia broadcast multicast service MBMS in the multicarrier system is characterized in that, comprising:
Work or reside in user equipment (UE) in the first component carrier receives the MBMS business of second component carriers carry in the first component carrier control information;
Described UE determines the transmission situation of interested MBMS business in the second component carrier wave according to described control information;
It is professional that described UE judges whether to receive described interested MBMS in described second component carrier wave according to the described transmission situation of determining;
If so, it is professional that described UE receives described interested MBMS in described second component carrier wave.
2. method according to claim 1 is characterized in that, described control information is information and/or the Multicast Channel schedule information MSI among the multicast control channel MCCH.
3. method according to claim 1 is characterized in that,
Described UE determines that according to described control information the transmission situation of interested described MBMS business comprises: when comprising in the described control information that described UE receives that described interested MBMS business is about to the session start information of the session information that begins to send or described interested MBMS business, described UE determines that the transmission situation of described interested MBMS business sends for beginning;
Described UE judges whether to receive described interested MBMS business according to the described transmission situation of determining and comprises in described second component carrier wave: when described UE determined that described interested MBMS business begins to send, it is professional that described UE determines to receive described interested MBMS in described second component carrier wave.
4. method according to claim 1 is characterized in that, described UE receives described interested MBMS business and comprises one of following mode in described second component carrier wave:
Described UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data and described control information;
Described UE accesses in the described second component carrier wave by carrier wave gravity treatment or switching mode, and it is professional to receive described interested MBMS in described second component carrier wave;
Described UE works or resides in the first component carrier, uses the multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data, continues to receive in described the first component carrier described control information.
5. method according to claim 4 is characterized in that,
Described UE application multi-carrier polymerizing ability receives described interested MBMS business datum and comprises in described second component carrier wave: when the multi-carrier polymerizing ability of described UE was not fully used, described UE used described multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data;
Described UE accesses in the described second component carrier wave by carrier wave gravity treatment or switching mode, receiving described interested MBMS business in described second component carrier wave comprises: when the multi-carrier polymerizing ability of described UE is fully used or described UE when not having the multi-carrier polymerizing ability, described UE accesses in the described second component carrier wave by carrier wave gravity treatment or switching mode, and it is professional to receive described interested MBMS in described second component carrier wave.
6. method according to claim 5 is characterized in that, described UE accesses in the described second component carrier wave by carrier wave gravity treatment or switching mode, receives described interested MBMS business and comprise in described second component carrier wave:
The priority that described UE arranges described second component carrier wave is limit priority, and the mode by component carrier gravity treatment or switching receives described interested MBMS in described second component carrier wave professional.
7. each described method is characterized in that according to claim 1-6, and the control information of described MBMS business is transmitted in described the first component carrier and described second component carrier wave, and the business datum of described MBMS business is transmitted in described second component carrier wave.
8. each described method is characterized in that according to claim 1-6,
Described UE is in the radio resource control RRC connection status; Perhaps, described UE is in the RRC idle condition in described the first component carrier.
9. a subscriber equipment is characterized in that, comprising:
The control information receiver module when being used for work or residing in the first component carrier, receives the control information of the MBMS business of second component carriers carry in the first component carrier;
Professional determination module is used for determining that according to the described control information that described control information receiver module receives interested MBMS business is in the transmission situation of described second component carrier wave;
Professional judge module, it is professional to be used for judging whether to receive described interested MBMS at described second component carrier wave according to the described transmission situation that described professional determination module is determined;
Professional receiver module, the judged result that is used for described professional judge module receive described interested MBMS business when being in described second component carrier wave.
10. subscriber equipment according to claim 9 is characterized in that,
Described professional determination module comprises: begin to send determining unit, be used for when described control information that described control information receiver module receives comprises that described interested MBMS business is about to the session start information of the session information that begins to send or described interested MBMS business, determining that the transmission situation of described interested MBMS business is for beginning transmission;
Described professional judge module comprises: the professional determining unit that receives, be used for when described when beginning to send determining unit and determining that described interested MBMS business begins to send, and it is professional to determine to receive described interested MBMS in described second component carrier wave.
11. subscriber equipment according to claim 9 is characterized in that, it is one of following that described professional receiver module comprises:
The first business receive unit when being used for work or residing in the first component carrier, is used the multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data and described control information;
The second business receive unit is used for accessing described second component carrier wave by carrier wave gravity treatment or switching mode, and it is professional to receive described interested MBMS in described second component carrier wave;
The 3rd business receive unit, when being used for work or residing in the first component carrier, use the multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data, continue in described the first component carrier, to receive described control information.
12. subscriber equipment according to claim 11 is characterized in that,
Described the first business receive unit and described the 3rd business receive unit include: the first receive mode chooser unit, be used for when the multi-carrier polymerizing ability of described subscriber equipment is not fully used, using described multi-carrier polymerizing ability receives described interested MBMS business in described second component carrier wave data;
Described the second business receive unit comprises: the second receive mode chooser unit, be used for fully using or described UE when not having the multi-carrier polymerizing ability when the multi-carrier polymerizing ability of described subscriber equipment, access in the described second component carrier wave by carrier wave gravity treatment or switching mode, it is professional to receive described interested MBMS in described second component carrier wave.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110179734.7A CN102857865B (en) | 2011-06-29 | 2011-06-29 | Multicarrier system receives method and the subscriber equipment of MBMS |
| PCT/CN2012/077240 WO2013000372A1 (en) | 2011-06-29 | 2012-06-20 | Method and user equipment for receiving mbms in multicarrier system |
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| CN201110179734.7A CN102857865B (en) | 2011-06-29 | 2011-06-29 | Multicarrier system receives method and the subscriber equipment of MBMS |
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| CN102857865B CN102857865B (en) | 2016-12-07 |
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| WO (1) | WO2013000372A1 (en) |
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| WO2010151403A1 (en) * | 2009-06-22 | 2010-12-29 | Alcatel-Lucent Usa Inc. | Indicating dynamic allocation of component carriers in multi-component carrier systems |
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| WO2013000372A1 (en) | 2013-01-03 |
| CN102857865B (en) | 2016-12-07 |
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