CN103313197A - Method and system for multimedia broadcast multicast service (MBMS) cell reselection - Google Patents
Method and system for multimedia broadcast multicast service (MBMS) cell reselection Download PDFInfo
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- CN103313197A CN103313197A CN2012100584668A CN201210058466A CN103313197A CN 103313197 A CN103313197 A CN 103313197A CN 2012100584668 A CN2012100584668 A CN 2012100584668A CN 201210058466 A CN201210058466 A CN 201210058466A CN 103313197 A CN103313197 A CN 103313197A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0007—Control or signalling for completing the hand-off for multicast or broadcast services, e.g. MBMS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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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
Abstract
The invention discloses a method and a system for multimedia broadcast multicast service (MBMS) cell reselection. The scheme comprises the following steps: when an MBMS which idle-state user equipment (UE) is interested in receiving is deployed at multiple frequencies, the UE sets one of MBMS frequencies as the highest priority to carry out cell reselection according to a network-side instruction; and if the cell reselected by the UE is congested, the UE initiates a radio resources control (RRC) connection request in the cell, or the UE reselects a cell of another frequency where the MBMS which the UE is interested in receiving is deployed and initiates an RRC connection request in the cell. With the method and the system for MBMS cell reselection, the user experience of the UE can be improved, the MBMS continuity of the idle-state UE can be realized, and network congestion caused by MBMS receiving can be prevented.
Description
Technical field
The present invention relates to Long Term Evolution (Long Term Evolution, LTE) technology, refer to especially the method and system of a kind of realization multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service, MBMS) cell reselection.
Background technology
Along with the fast development of Internet and popularizing of large-screen Multi-featured Mobile Terminal, 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, advertisement, online education, interactive game etc., this has satisfied the multiple services demand of mobile subscriber on the one hand, has also brought new business growth point for mobile operator on the other hand.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 (3GPP, 3rd GenerationPartnership Project) has proposed multimedia broadcast multi-broadcasting business.The MBMS business is a kind of technology that transmits data from a data source to a plurality of destination mobile terminals, has realized sharing of network (comprising core net and Access Network) resource, has 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, but also can 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 provides better professional prospect.
The subscriber equipment (UE, or title terminal) that receives the MBMS business can be in one of following two states: a kind of is Radio Resource control connection RRC connected state (RRC_CONNECTED is referred to as connected state); Another kind is RRC Idle state (RRC_IDLE is referred to as Idle state), only studies for the UE under the Idle state among the present invention.Whether receiving unicast service according to UE, can judge that the UE that is receiving the MBMS business is in connected state or is in Idle state; When UE when receiving unicast service, UE is in connected state; The UE that is in Idle state does not set up Radio Resource control (RRC, RadioResources Control) with network side and connects, and the UE that is in connected state has then set up RRC with network side and has been connected.UE enters connected state from Idle state need to initiate the RRC connection request, and concrete flow process as depicted in figs. 1 and 2.
In mobile process, for the UE of Idle state, the normal operation residential quarter is selected or gravity treatment flow process target approach residential quarter; For the UE of connected state, switching flow target approach residential quarter, normal operation residential quarter.
If UE has the MBMS that is receiving professional in the cell-of-origin, behind UE target approach residential quarter, UE will read Broadcast Control Channel (Broadcast Control Channel, BCCH) and multicast control channel (Multicast Control Channel, MCCH) message is to obtain the resource allocation information of MBMS business in the Target cell.If Target cell and cell-of-origin belong to identical multimedia broadcast multi-broadcasting business Single Frequency Network (MBMS over a Single Frequency Network, MBSFN) zone, that is: Target cell and cell-of-origin all belong to this MBSFN zone, then UE can read the resource allocation information of MBMS business behind the target approach residential quarter, directly use the resource allocation information of the MBMS business of cell-of-origin (current area) to receive the MBMS business at Target cell, realize the continuity of MBMS business; If Target cell belongs to different MBSFN zones with the cell-of-origin, then UE needs to read the resource allocation information of MBMS business behind the target approach residential quarter; Do not send if the MBMS that UE need to receive in Target cell is professional, then UE can't read the resource allocation information of MBMS business behind the target approach residential quarter, also can't receive the MBMS business.
Accepting state with UE of MBMS professional ability comprises: receiving the MBMS business and, reception MBMS interested is professional.Reception MBMS business interested refers to that UE does not also receive the MBMS business, and it is professional to prepare to receive MBMS, and at this moment, UE can monitor the MBMS notification message, further reads MCCH message and MBMS business datum according to the MBMS notification message.
3GPP discusses and agrees at present: only consider to be deployed in a MBMS business continuance on the frequency.To provide the component carrier of MBMS business to be called the MBMS frequency herein.
In the R10 version, in order to improve the resource utilization of MBMS system, make things convenient for operator's management, the MBMS technology is strengthened.1, introduced MBMS counting (Counting) mechanism.2, the resource of introducing service based priority is seized (Pre-emption) technology and is namely distributed and keep priority (ARP, Allocation and Retention Priority) technology.Counting and resource are seized all and are initiated by many cell/multicast cooperation entities (Multi-cell/multicast Coordination Entity, MCE), and the scope of counting and resource conversion generally is the MBSFN zone.The professional hang-up of above-mentioned MBMS refers to: MCE notice eNB discharges corresponding Radio Resource, corresponding business contexts (context) is retained among the eNB, eNB can withdraw from or not withdraw from corresponding ip multicast group, after the hang-up, the UE dwelling period reads MCCH message, and UE monitors the professional corresponding MCCH notification message of MBMS; Described MBMS business recovery refers to: MCE notice eNB redistributes Radio Resource, if eNB has withdrawed from the ip multicast group, then eNB adds the ip multicast group again, continues to adopt MBSFN mode MBMS transmission professional, and UE periodically reads MCCH message.Resource is seized the ARP parameter that relates to and is come from core net (Evolved Packet Core, EPC), sends to MCE by MME by MBMS session start request message.
Before the professional beginning of MBMS (session start), the advanced industry of BM-SC is engaged in announcing (announcement), the purpose of announcement is the brief introduction that sends the MBMS business to UE, and such as Electronic Service Guide (ESG), announcement can send in the following manner: the MBMS carrying, perhaps interactive mode, such as HTTP, perhaps PTP push mode is such as SMS, MMS, HTTP push etc.After announcement can last till that the MBMS service conversation stops.
Residential quarter selection or gravity treatment belong to the mobility under the UE Idle state.The residential quarter is selected to comprise: initial cell is selected, is returned Idle state and reenter service from connected state.The residential quarter selects to comprise that UE searches for the strongest residential quarter until find suitable residential quarter at inner each carrier frequency of each RAT that supports (Radio Access Technology).When leaving connection mode, UE selects over the residential quarter that connects usually, and still, connection release message may comprise the information of residential quarter on the indication UE search characteristic frequency; When UE finds in the selected public land mobile network (Public Land Mobile Network, PLMN) without suitable cell, to carry out " arbitrary cells search ", under this state, UE does not allow to receive the MBMS business.
The residential quarter is selected or the purpose of gravity treatment is to guarantee that Idle state UE resides in the best residential quarter.In wireless network, the residential quarter is selected or gravity treatment is a necessary process, and main cause is the mobility of UE and the fluctuation of wireless environment, causes thus the fluctuation of signal strength signal intensity and interference level.In LTE, network side can be for different set of frequencies maximum 8 different priority, Idle state UE carries out the residential quarter according to the frequency priority orders and selects or gravity treatment, and when frequency priority was identical, UE carried out the residential quarter according to the ordering of quality of wireless channel and selects or gravity treatment.
As a basic principle, parameter (such as threshold value) and part system information that the wireless measurement (the beacon channel level that for example receives) that each terminal use is finished self and network provide are assessed residential quarter selection or reselection criterion.For the multimode terminal in the environment that multiple access technology is provided, terminal need to be used from the measurement of different usable frequencies and access technology reselection criterion is assessed.
The employed parameter of network control reselection criterion, thus allow according to the network needs, and the UE that will be in Idle state moves to maximally related network layer.
3GPP discusses agreement: when the cell reselection, the MBMS frequency as limit priority, is then carried out cell reselection according to the cell reselection rules of unicast service for the Idle state UE that receives the MBMS business; In different geographic areas, the MBMS business can be deployed on the different frequencies.
If present 3GPP has only discussed UE reception interested or the MBMS business that receiving on a MBMS frequency (frequency of having disposed the MBMS business is called the MBMS frequency), then UE is made as this frequency the frequency of limit priority, and then UE can carry out the cell reselection process similar to 3GPP Rel8.But, find that in to the research and practice process of prior art there is following problem in prior art: if 1 MBMS service deployment on a plurality of frequencies and UE reception interested or the MBMS business that receiving also be deployed on a plurality of frequencies, which MBMS traffic frequencies the Idle state UE of reception MBMS business interested may not know to arrange as limit priority.Does whether UE optional carry out gravity treatment if it is congested that 2 re-aiming residential quarters occur? how does UE initiate the RRC connection request at Target cell? can't make correct judgement according to prior art UE.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of MBMS cell reselection, in order to solve Idle state UE How to choose re-aiming residential quarter, how to initiate the problem of RRC connection request at Target cell.
For achieving the above object, technical scheme of the present invention is achieved in that
Based on the one side of the embodiment of the invention, a kind of method of multimedia broadcast multi-broadcasting business MBMS cell reselection is provided, the method comprises:
The Idle state user equipment (UE) of reception MBMS business interested receives the MBMS business information;
When the MBMS service deployment of described UE reception interested was on a plurality of frequencies, described UE was according to the indication of network side, was made as limit priority with one in the professional place of the MBMS frequency of reception interested, carried out cell reselection.
Further, the frequency that is made as the professional place of MBMS of limit priority by described UE is the frequency at the professional place of the most interested MBMS of described UE, or the highest frequency of frequency priority in the professional place of the MBMS frequency of the described UE reception interested of network side indication, or from the frequency of the professional place of the MBMS of described UE reception interested a random frequency of selecting, or realize based on UE.
Further, when the MBMS service deployment of described UE reception interested is on a plurality of frequencies, the information that the indication of described network side comprises comprises: the frequency at the professional place of the MBMS of described UE reception interested, and whether allow described UE that the frequency at the professional place of MBMS of reception interested is made as limit priority;
Only when network side allows described UE that the frequency at the professional place of the MBMS of described UE reception interested is made as limit priority, described UE could be according to described indication, and the professional place of the MBMS frequency of reception interested is made as limit priority.
Further, of arranging in the frequency of the professional place of interested MBMS according to the indication of network side of described UE is limit priority, and the step of carrying out cell reselection is specially:
Small area jam when the professional place of described MBMS frequency, when network side indication does not allow described UE that the set of frequency at the professional place of described MBMS is limit priority, described UE judges whether to exist other that described UE frequency of interested MBMS business can be provided, if exist, then can to provide the set of frequency of described MBMS business with other be limit priority to described UE, carries out cell reselection; If do not exist, after then described UE waits for the relieve congestion of residential quarter of the professional place of described MBMS frequency, be that limit priority carries out cell reselection with the professional place of described MBMS set of frequency again.
Further, small area jam when the professional place of described MBMS frequency, when network side indication allows described UE that the set of frequency at the professional place of described MBMS is limit priority, after described UE is made as limit priority with the professional place of described MBMS frequency, also comprise:
Judge whether the connection request to re-aiming residential quarter initiation RRC according to the Rule of judgment that presets, if then described UE initiates the RRC connection request at Target cell, otherwise, described UE gravity treatment is initiated the RRC connection request again to the residential quarter of the professional place of the interested MBMS of other described UE frequency.
Further, the described Rule of judgment that presets comprises one or more in the following Rule of judgment:
Whether re-selecting cell is congested;
Whether the type of RRC connection request is urgent call or high-priority call;
Whether the priority of unicast service is higher than the priority of multicast service;
Whether operator allows to initiate under the congestion condition RRC connection request.
Further, if there are not other frequencies of the MBMS business that described UE reception interested is provided, after then UE waits for the relieve congestion of residential quarter of the professional place of described MBMS frequency, initiate again the RRC connection request.
Further, the described cell reselection that carries out is specially: described UE carries out cell reselection according to the cell reselection criterion, the cell reselection criterion that described cell reselection criterion is unicast service.
Based on the embodiment of the invention on the other hand, provide a kind of system of multimedia broadcast multi-broadcasting business MBMS cell reselection, this system comprises:
Network side is for the MBMS business information that sends described UE reception interested to the UE that is in Idle state; And whether transmission allows described UE the professional place of the MBMS frequency of described UE reception interested to be made as the indication of limit priority;
User equipment (UE) is used for receiving the MBMS business information that described network side sends; And when the MBMS of UE reception interested service deployment is on a plurality of frequencies, according to the indication of described network side, be made as limit priority with one in the frequency of the MBMS of described UE reception interested business place, carry out cell reselection.
Further, described network side also is used for sending to described UE the congested indication of residential quarter of the professional place of the MBMS frequency of described UE reception interested;
Small area jam when the professional place of described MBMS frequency, when network side indication does not allow described UE that the set of frequency at the professional place of described MBMS is limit priority, described UE also is used for judging whether to exist other that described UE frequency of interested MBMS business can be provided, if exist, then described UE is that limit priority carries out cell reselection for providing the set of frequency of described MBMS business with other also; If do not exist, after then described UE also is used for waiting for the relieve congestion of residential quarter of the professional place of described MBMS frequency, be that limit priority carries out cell reselection with the professional place of described MBMS set of frequency again.
Further, small area jam when the professional place of described MBMS frequency, when network side indication allows described UE that the set of frequency at the professional place of described MBMS is limit priority, after described UE is made as limit priority with the professional place of described MBMS frequency, described UE also is used for judging whether the connection request to re-aiming residential quarter initiation RRC according to the Rule of judgment that presets, if, then described UE initiates the RRC connection request at Target cell, otherwise, described UE also is used for gravity treatment to the residential quarter of the professional place of the interested MBMS of other described UE frequency, initiates the RRC connection request again.
By the present invention, the user that can improve UE experiences, and realizes the MBMS business continuance of Idle state UE, prevents from receiving the network congestion that the MBMS business causes.
Description of drawings
Fig. 1 is that the RRC connection is successfully established schematic flow sheet;
Fig. 2 is that the failure procedures schematic diagram is set up in the RRC connection;
Fig. 3 is residence reselecting schematic diagram of the present invention;
Fig. 4 is the embodiment of the invention one flow process schematic diagram;
Fig. 5 is the embodiment of the invention two flow process schematic diagrames;
Fig. 6 is the system configuration schematic diagram that the present invention realizes the MBMS cell reselection.
Embodiment
Core concept of the present invention is: owing to some MMBS service deployments when UE reception interested only being discussed on a MBMS frequency time in the present 3GPP meeting, UE is the limit priority frequency with this set of frequency and carries out cell reselection.The present invention proposes a plurality of MBMS service deployments when UE reception interested on a plurality of MBMS frequencies the time, UE is the limit priority frequency with one of them set of frequency and carries out cell reselection, and simultaneously the present invention has proposed further UE and how to have selected a frequency as the limit priority frequency from above-mentioned a plurality of MBMS frequencies and carry out the method for cell reselection.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
The method that the present invention realizes the MBMS cell reselection comprises the steps: as shown in Figure 3
Among the present invention, reception MBMS interested is professional, refers to that this business begins, and does not perhaps also begin (but be likely be about to begin).
Described MBMS business information comprise following one or more: MBMS service identification, the professional place of MBMS frequency, professional time started of MBMS, MBMS service ending time, MBMS service area etc.;
Described MBMS business information can be passed through application layer message, such as Electronic Service Guide-ESG, or Access Layer information, obtain such as the RRC signaling; Described MBMS business information is sent to UE by network side.
If UE reception interested MBMS service deployment is on a plurality of MBMS frequencies, then to select one of them MBMS frequency be limit priority to UE, then carries out cell reselection.Selected one of them MBMS frequency can be following any one: the professional place frequency that UE is most interested, or the highest frequency of corresponding frequencies priority of network side indication, or from a plurality of MBMS frequencies a random frequency of selecting, or realize based on UE.The described implication that realizes based on UE is not need standardization, can be set by UE manufacturer oneself.
Further, UE selects one of them congested for the method for limit priority can be that UE judges whether the said frequencies residential quarter occurs from above-mentioned a plurality of MBMS frequencies, particularly:
The indication of described network side refers to: network side is indicated the frequency at the professional place of MBMS of this UE reception interested to described UE, and whether said frequencies allows described UE to be made as limit priority to carry out cell reselection; Congested when the frequency cells generation of the professional place of MBMS of reception interested, it is that limit priority carries out cell reselection that network side can not allow described UE that this frequency is set; If do not allow to be set to limit priority, then UE can select other frequencies of the professional place of MBMS of reception interested to be made as limit priority, wait for that perhaps small area jam is removed after, UE selects the professional place of the MBMS frequency of reception interested to be made as limit priority; Described network side indication sends by the RRC signaling, such as system message;
Described UE with the moment that the MBMS frequency is made as limit priority is: if the interested MBMS business of described UE begins, then UE can be made as limit priority with the MBMS frequency immediately and carries out cell reselection, receives the moment of the frequency information of MBMS business interested such as UE; If interested MBMS business does not begin, then UE, was made as limit priority with the MBMS frequency and carries out cell reselection before the professional time started at interested MBMS, as MBMS interested before the professional time started 5 seconds.
Described UE is limit priority with interested MBMS set of frequency, and carries out cell reselection according to the cell reselection criterion; Described cell reselection criterion refers to the cell reselection criterion of unicast service, such as measurement rules, and S criterion (S-criterion), R criterion (R-criterion), access limitation etc.;
Consider the cell reselection of Idle state UE between different frequency based on frequency priority, under the equal priority based on radio link quality, therefore receive or the UE of reception MBMS interested through said process can gravity treatment to the frequency cells of required MBMS business.
Step 303 judges whether and can initiate the RRC connection request to Target cell, if so, then turns to step 304, otherwise turns to step 305;
Described judgement is carried out according to following one or more conditions: whether the Target cell of gravity treatment is congested, the type of RRC connection request, the relative priority of clean culture and multicast service, carrier policy etc.;
For example, if the re-aiming residential quarter is not congested, then allowing UE is the Target cell initiation RRC connection of gravity treatment in the professional place of MBMS of described this UE reception interested frequency cells; Or
If the RRC connection request is urgent call or high-priority call, or the types such as Mobile terminating call (MT-Mobile Terminating) business of response paging, then allowing UE is the Target cell initiation RRC connection of gravity treatment in the professional place of MBMS of described this UE reception interested frequency cells; Or
If unicast service is higher than the priority of MBMS business, then allowing UE is the Target cell initiation RRC connection of gravity treatment in the professional place of MBMS of described this UE reception interested frequency cells; Or
If operator allows to initiate the RRC connection request under the congestion condition, then allowing UE is the Target cell initiation RRC connection of gravity treatment in the professional place of MBMS of described this UE reception interested frequency cells.
Also can be with the several conditional combinations in the above-mentioned condition together, judge, for example, only in the situation that operator allows to initiate the RRC connection request under the congestion condition and the re-aiming residential quarter is not congested, just allow UE to initiate RRC in the professional place of MBMS of described this UE reception interested frequency cells and connect.
Above-mentioned congested can the indication such as system message by the indication of RRC signaling, described indication can adopt 1 bit to indicate congested whether the existence;
Idle state UE initiates the RRC connection request at Target cell, the transmitting-receiving unicast service; According to the receiving ability of UE, if UE has dual collector, then UE can receive interested MBMS business and transmitting-receiving unicast service simultaneously, and perhaps UE adopts time division multiplexing to receive interested MBMS business and transmitting-receiving unicast service.
If there are not other frequencies to provide the MBMS of UE reception interested professional, then described UE awaits a favorable opportunity at Target cell, and UE initiates the RRC connection request at Target cell;
Can be network side indication relieve congestion described opportunity, and perhaps the MBMS business of UE reception interested stops, and perhaps UE has changed the MBMS business of reception interested; Above-mentioned relieve congestion is by the indication of Access Layer signaling, such as the RRC signaling;
If exist other frequencies to provide the MBMS of UE reception interested professional, perhaps UE has changed the MBMS business of reception interested, then UE can be according to the frequency information of the MBMS business of reception interested, with the MBMS frequency as limit priority, corresponding MBMS frequency cells is arrived in gravity treatment, and initiates the RRC connection request in above-mentioned MBMS frequency cells;
If UE reception no longer interested MBMS is professional, perhaps UE receives urgent call, perhaps receive the paging of other high priority business, then UE carries out cell reselection according to frequency precedence information and the cell reselection criterion of system message indicating, and initiates the RRC connection request at re-selecting cell.
Embodiment one
Indicate whether that for network side allowing to arrange this MBMS frequency priority is the highest scene, realize the method for MBMS cell reselection as shown in Figure 4, comprising:
By this step, UE can know that the MBMS business of its reception interested is on one or more MBMS frequency.
Described MBMS business information comprise following one or more: MBMS service identification, the professional place of MBMS frequency, professional time started of MBMS, MBMS service ending time, MBMS service area etc.;
Described MBMS business information can be passed through application layer message, such as Electronic Service Guide-ESG, or Access Layer information, obtain such as the RRC signaling.
If the MBMS business of UE reception interested is on a plurality of frequencies, and network side indicates all these frequencies not allow to be made as limit priority, then arrive step 404;
If the MBMS business of UE reception interested is on a plurality of frequencies, and network side indication component frequency wherein do not allow to be made as limit priority, but also has at least one to allow to be set to limit priority, then arrive step 403;
Network side indication does not allow that this frequency is made as limit priority and carries out cell reselection, such as: the MBMS frequency cells is congested, and perhaps MBMS frequency cells number of users is too many, and perhaps the MBMS number of services of MBMS frequency cells deploy is too many etc.It is congested as the example explanation that the present invention only the MBMS frequency cells occurs take network side;
The frequency cells at the professional place of the MBMS that described MBMS frequency cells is UE reception interested;
Described network side indication sends by the RRC signaling, such as system message.
Described judgement is carried out according to application layer ESG information and Access Layer information: such as the frequency information that application layer provides MBMS to dispose, Access Layer provides the coverage sign (Service Area Identifier, SAI) of MBMS.
If the frequency that the network side indication allows only has one, then directly select this frequency;
If it is a plurality of that the frequency that network side indication allows has, then to select one of them frequency be limit priority to UE;
One of them frequency can be following any one: the professional place frequency that UE is most interested, or the corresponding frequencies priority of network side indication is the highest, or random selection the, or realize based on UE.
Described UE with the moment that the MBMS frequency is made as limit priority is: if interested MBMS business begins, then UE can be made as limit priority with the MBMS frequency immediately and carries out cell reselection, receives the moment of the frequency information of MBMS business interested such as UE; If interested MBMS business does not begin, then UE was made as limit priority with the MBMS frequency and carries out cell reselection before the time started of MBMS business interested, as MBMS interested before the professional time started 5 seconds.
Consider the cell reselection of Idle state UE between different frequency based on frequency priority, under the equal priority based on radio link quality, therefore receive or the UE of reception MBMS interested through said process can gravity treatment to the frequency cells of required MBMS business.If the UE gravity treatment keeps the residential quarter to residential quarter or the MBSFN zone in non-MBSFN zone, then UE proceeds cell reselection, until enter the frequency cells of required business;
Described wait can be in the cell-of-origin, and perhaps the UE gravity treatment is carried out to suitable Target cell;
Described relieve congestion can send the signaling indication by network side, indicates such as the RRC signaling;
Described MBMS frequency cells refers to allow to be made as the MBMS frequency cells that limit priority carries out cell reselection.
It is professional that Idle state UE can receive interested MBMS at Target cell, MBMS is professional to be stopped when UE receives, finish such as professional transmission of MBMS, perhaps UE reception no longer interested MBMS is professional, perhaps receive urgent call or high priority clean culture beep-page message, etc., when UE prepares to carry out new cell reselection, UE carries out cell reselection according to frequency precedence information and the cell reselection criterion of system message indicating, be UE no longer with the MBMS frequency as the limit priority frequency, unless specify MBMS frequency priority the highest in system message or the RRC signaling message;
Above-mentioned UE loses interest in and receives the MBMS business and refer to that UE terminating reception MBMS is professional, and it is professional not prepare to continue to receive other MBMS;
The frequency precedence information of above-mentioned network side setting refers to that network side passes through the frequency precedence information of system message or the indication of RRC signaling message, comprises the priority with frequency and alien frequencies, also comprises the priority of MBMS frequency.
Embodiment two
Idle state UE for reception MBMS business interested initiates the scene of RRC connection request, realizes the residence reselecting of MBMS as shown in Figure 5, comprising:
This step is identical with step 401, repeats no more here.
This step repeats no more here with step 403.
Step 503 is judged in the Target cell, whether can initiate the RRC connection request, if so, then turns to step 504, otherwise turns to step 505;
This step repeats no more here with step 303.
This step repeats no more with step 304 herein.
Step 505 judges whether to exist other frequency cells that MBMS business interested is provided, and if so, turns to step 506, otherwise turns to step 507;
This step repeats no more with step 304 herein.
Can be network side indication relieve congestion described opportunity, and perhaps the MBMS business of UE reception interested stops, and perhaps UE has changed the MBMS business of reception interested; Above-mentioned relieve congestion is by the indication of Access Layer signaling, such as the RRC signaling;
If there are not other frequencies to provide the MBMS of UE reception interested professional, then described UE is in Target cell arrivals of awaiting a favorable opportunity, and UE is at Target cell initiation RRC connection request;
If it is professional that UE has changed the MBMS of reception interested, then UE can be according to the frequency information of the MBMS business of reception interested, as limit priority, corresponding MBMS frequency cells is arrived in gravity treatment with the MBMS frequency, and initiates the RRC connection request in above-mentioned MBMS frequency cells;
If UE reception no longer interested MBMS is professional, perhaps UE receives urgent call, perhaps receive the paging of other high priority business, then UE carries out cell reselection according to frequency precedence information and the cell reselection criterion of system message indicating, and initiates the RRC connection request at re-selecting cell.
In order to realize the method for above-mentioned MBMS cell reselection, the present invention also provides a kind of system of the MBMS of realization cell reselection, and as shown in Figure 6, this system comprises: network side, subscriber equipment;
Described network side comprises following at least a: eNB, MCE;
Described network side is used for sending to the UE that is in Idle state the MBMS business information of described UE reception interested; And whether transmission allows described UE the professional place of the MBMS frequency of described UE reception interested to be made as the indication of limit priority;
Described user equipment (UE) is used for receiving the MBMS business information that described network side sends; And when the MBMS of UE reception interested service deployment is on a plurality of frequencies, according to the indication of described network side, be made as limit priority with one in the frequency of the MBMS of described UE reception interested business place, carry out cell reselection.
Preferably, described network side also is used for sending to described UE the congested indication of residential quarter of the professional place of the MBMS frequency of described UE reception interested;
Small area jam when the professional place of described MBMS frequency, when network side indication does not allow described UE that the set of frequency at the professional place of described MBMS is limit priority, described UE also is used for judging whether to exist other that described UE frequency of interested MBMS business can be provided, if exist, then described UE is that limit priority carries out cell reselection for providing the set of frequency of described MBMS business with other also; If do not exist, after then described UE also is used for waiting for the relieve congestion of residential quarter of the professional place of described MBMS frequency, be that limit priority carries out cell reselection with the professional place of described MBMS set of frequency again.
Small area jam when the professional place of described MBMS frequency, when network side indication allows described UE that the set of frequency at the professional place of described MBMS is limit priority, after described UE is made as limit priority with the professional place of described MBMS frequency, described UE also is used for judging whether the connection request to re-aiming residential quarter initiation RRC according to the Rule of judgment that presets, if, then described UE initiates the RRC connection request at Target cell, otherwise, described UE also is used for gravity treatment to the residential quarter of the professional place of the interested MBMS of other described UE frequency, initiates the RRC connection request again.
Because system provided by the invention is based on preceding method embodiment realization, the function of each part of system all can directly derive from aforementioned embodiment of the method, for saving space, repeats no more herein.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.
Claims (11)
1. the method for a multimedia broadcast multi-broadcasting business MBMS cell reselection is characterized in that,
The Idle state user equipment (UE) of reception MBMS business interested receives the MBMS business information;
When the MBMS service deployment of described UE reception interested was on a plurality of frequencies, described UE was according to the indication of network side, was made as limit priority with one in the professional place of the MBMS frequency of reception interested, carried out cell reselection.
2. method according to claim 1, it is characterized in that, the frequency that is made as the professional place of MBMS of limit priority by described UE is the frequency at the professional place of the most interested MBMS of described UE, or the highest frequency of frequency priority in the professional place of the MBMS frequency of the described UE reception interested of network side indication, or from the frequency of the professional place of the MBMS of described UE reception interested a random frequency of selecting, or realize based on UE.
3. method according to claim 1, it is characterized in that, when the MBMS service deployment of described UE reception interested is on a plurality of frequencies, the information that the indication of described network side comprises comprises: the frequency at the professional place of the MBMS of described UE reception interested, and whether allow described UE that the frequency at the professional place of MBMS of reception interested is made as limit priority;
Only when network side allows described UE that the frequency at the professional place of the MBMS of described UE reception interested is made as limit priority, described UE could be according to described indication, and the professional place of the MBMS frequency of reception interested is made as limit priority.
4. method according to claim 1 is characterized in that, of arranging in the frequency of the professional place of interested MBMS according to the indication of network side of described UE is limit priority, and the step of carrying out cell reselection is specially:
Small area jam when the professional place of described MBMS frequency, when network side indication does not allow described UE that the set of frequency at the professional place of described MBMS is limit priority, described UE judges whether to exist other that described UE frequency of interested MBMS business can be provided, if exist, then can to provide the set of frequency of described MBMS business with other be limit priority to described UE, carries out cell reselection; If do not exist, after then described UE waits for the relieve congestion of residential quarter of the professional place of described MBMS frequency, be that limit priority carries out cell reselection with the professional place of described MBMS set of frequency again.
5. method according to claim 4, it is characterized in that, small area jam when the professional place of described MBMS frequency, when network side indication allows described UE that the set of frequency at the professional place of described MBMS is limit priority, after described UE is made as limit priority with the professional place of described MBMS frequency, also comprise:
Judge whether the connection request to re-aiming residential quarter initiation RRC according to the Rule of judgment that presets, if then described UE initiates the RRC connection request at Target cell, otherwise, described UE gravity treatment is initiated the RRC connection request again to the residential quarter of the professional place of the interested MBMS of other described UE frequency.
6. method according to claim 5 is characterized in that, the described Rule of judgment that presets comprises one or more in the following Rule of judgment:
Whether re-selecting cell is congested;
Whether the type of RRC connection request is urgent call or high-priority call;
Whether the priority of unicast service is higher than the priority of multicast service;
Whether operator allows to initiate under the congestion condition RRC connection request.
7. method according to claim 4 is characterized in that, if there are not other frequencies of the MBMS business that described UE reception interested is provided, after then UE waits for the relieve congestion of residential quarter of the professional place of described MBMS frequency, initiates the RRC connection request again.
8. method according to claim 1 is characterized in that, the described cell reselection that carries out is specially:
Described UE carries out cell reselection according to the cell reselection criterion, the cell reselection criterion that described cell reselection criterion is unicast service.
9. the system of a multimedia broadcast multi-broadcasting business MBMS cell reselection is characterized in that, comprising:
Network side is for the MBMS business information that sends described UE reception interested to the UE that is in Idle state; And whether transmission allows described UE the professional place of the MBMS frequency of described UE reception interested to be made as the indication of limit priority;
User equipment (UE) is used for receiving the MBMS business information that described network side sends; And when the MBMS of UE reception interested service deployment is on a plurality of frequencies, according to the indication of described network side, be made as limit priority with one in the frequency of the MBMS of described UE reception interested business place, carry out cell reselection.
10. system according to claim 9 is characterized in that,
Described network side also is used for sending to described UE the congested indication of residential quarter of the professional place of the MBMS frequency of described UE reception interested;
Small area jam when the professional place of described MBMS frequency, when network side indication does not allow described UE that the set of frequency at the professional place of described MBMS is limit priority, described UE also is used for judging whether to exist other that described UE frequency of interested MBMS business can be provided, if exist, then described UE is that limit priority carries out cell reselection for providing the set of frequency of described MBMS business with other also; If do not exist, after then described UE also is used for waiting for the relieve congestion of residential quarter of the professional place of described MBMS frequency, be that limit priority carries out cell reselection with the professional place of described MBMS set of frequency again.
11. system according to claim 10 is characterized in that,
Small area jam when the professional place of described MBMS frequency, when network side indication allows described UE that the set of frequency at the professional place of described MBMS is limit priority, after described UE is made as limit priority with the professional place of described MBMS frequency, described UE also is used for judging whether the connection request to re-aiming residential quarter initiation RRC according to the Rule of judgment that presets, if, then described UE initiates the RRC connection request at Target cell, otherwise, described UE also is used for gravity treatment to the residential quarter of the professional place of the interested MBMS of other described UE frequency, initiates the RRC connection request again.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058466.8A CN103313197B (en) | 2012-03-07 | 2012-03-07 | A kind of multimedia broadcast multi-broadcasting business residence reselecting and system |
| PCT/CN2012/073947 WO2013131306A1 (en) | 2012-03-07 | 2012-04-12 | Multimedia broadcast multicast service cell reselection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058466.8A CN103313197B (en) | 2012-03-07 | 2012-03-07 | A kind of multimedia broadcast multi-broadcasting business residence reselecting and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103313197A true CN103313197A (en) | 2013-09-18 |
| CN103313197B CN103313197B (en) | 2016-04-13 |
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| CN201210058466.8A Expired - Fee Related CN103313197B (en) | 2012-03-07 | 2012-03-07 | A kind of multimedia broadcast multi-broadcasting business residence reselecting and system |
Country Status (2)
| Country | Link |
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| CN (1) | CN103313197B (en) |
| WO (1) | WO2013131306A1 (en) |
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| WO2021147513A1 (en) * | 2020-01-21 | 2021-07-29 | 大唐移动通信设备有限公司 | Terminal state processing method, device and medium |
| CN114071369A (en) * | 2020-08-06 | 2022-02-18 | 维沃移动通信有限公司 | Information transmission method, device, terminal and network equipment |
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| US11641566B2 (en) | 2019-07-25 | 2023-05-02 | Google Llc | User-equipment-coordination-set regrouping |
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Also Published As
| Publication number | Publication date |
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| CN103313197B (en) | 2016-04-13 |
| WO2013131306A1 (en) | 2013-09-12 |
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