CN102238483A - Cell reselecting method and equipment - Google Patents
Cell reselecting method and equipment Download PDFInfo
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- CN102238483A CN102238483A CN2011101911978A CN201110191197A CN102238483A CN 102238483 A CN102238483 A CN 102238483A CN 2011101911978 A CN2011101911978 A CN 2011101911978A CN 201110191197 A CN201110191197 A CN 201110191197A CN 102238483 A CN102238483 A CN 102238483A
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Abstract
The embodiment of the invention discloses a cell reselecting method and equipment, relating to the technical field of wireless communication, and beings used for improving the continuity when user equipment (UE) receives multimedia broadcast multicast service (MBMS) data. In the cell reselecting method, when receiving the MBMS data or determining that MBMS data in which a terminal is interested exists currently, the terminal sets the priority level of the frequency point at which the MBMS data are transmitted to be highest, and forbids the MBMS data to be reselected to a closed user group (CSG) cell and/or forbids the automatic CSG search function, thus the continuity when the UE receives MBMS data is improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of residence reselecting and equipment.
Background technology
Multimedia broadcast-multicast service (MBMS) is used to the user in the wireless area that multimedia broadcasting and multicast services are provided.In Long Term Evolution (LTE) system, the frequency layer of MBMS special use and with the professional frequency layer of sharing of non-MBMS on MBMS can both be provided.Support that the LTE sub-district of MBMS can be that the MBMS dedicated cell also can be a MBMS/ clean culture mixed cell.The MBMS business can be carried out single cell transmission, also can carry out many cell transmission.Many cell transmission of MBMS need be supported multicast single-frequency network (MBSFN) transmission means.
So-called MBSFN transmission means is meant at one time and carries out synchronous transmission with same frequency in a plurality of sub-districts that is to say, the sub-district in the same MBSFN zone is a co-frequency cell.Use this transmission means can save frequency resource, improve the availability of frequency spectrum.It requires a plurality of sub-districts that identical content is sent simultaneously.So, user terminal (UE) receiver just can be considered as a plurality of MBSFN sub-district a big sub-district.Therefore, UE not only can not be subjected to the presence of intercell interference of neighbor cell transmission, and will benefit from the stack from the signal of a plurality of MBSFN sub-district.MBMS dedicated cell and MBMS/ clean culture mixed cell can adopt the MBSFN transmission means.In addition, if utilize advanced UE receiver technology can also solve the time difference problem of multipath transmisstion, disturb thereby eliminate in the sub-district.This multiple sectors at same keeps pouring in the defeated diversity that brings can also solve problems such as blind area covering, strengthens the reliability that receives, and improves coverage rate.
The technical characterstic of the many cell transmission of MBMS is as follows: the synchronous transmission of MBMS in the MBSFN zone; Support the merging of many cell MBMS transmission; The MBSFN zone can semi-staticly dispose, as: by Operation and Maintenance entity (O﹠amp; M).
Fig. 1 has shown the relation in MBMS service area and MBSFN zone etc.: the MBMS service area is made up of one or more service identifications, and each service identification maps to one or more sub-districts.
The MBSFN zone is made up of one group of sub-district in the retaining zone, and these sub-districts are carried out synchronous MBSFN and sent, and plan according to the strategy of operator in the MBSFN zone.MBSFN reserves in the zone sub-district and also belongs to retaining zone, and this sub-district is not carried out MBSFN and sent.
In the version 11 (Rel-11) of LTE, only consider to have only the situation of a frequency MBMS transmission at present.
In the LTE system, when UE was in idle condition, what need to continue carried out the sub-district gravity treatment, so as to reside in priority higher/the better sub-district of channel quality.Network is by being provided with the priority of different frequent points, can reach the purpose of control UE persistent district, simultaneously, UE on certain frequency with the top-quality sub-district of selective channel, so that better provide service for it.
The UE of Idle state follows the rule of carrying out the sub-district gravity treatment according to frequency priority, and is specific as follows:
Be higher than the frequency of current resident frequency for frequency priority, UE should always carry out the measurement to them; And,
If the sub-district on the high priority frequency is satisfied channel quality thresholds and continued the regular hour, then the UE gravity treatment is to this sub-district;
Be equal to or less than the frequency of current resident frequency for frequency priority, when UE is lower than a thresholding at the Serving cell channel quality, starts and measure; And,
For same priority frequency (comprise with frequently), sorted according to channel quality in all sub-districts, if the channel quality of the strongest sub-district of channel quality all is higher than current persistent district within a certain period of time, then the UE gravity treatment is to this sub-district;
For the low priority frequency, do not satisfy above-mentioned reselection conditions if there is the sub-district on high priority or the same priority frequency, then within a certain period of time, if the channel quality of current persistent district is lower than certain thresholding, and the cell channel quality on the low priority frequency is higher than certain thresholding, and then the UE gravity treatment is to this sub-district.
Owing to need to start earlier measurement before the reselection evaluation to other sub-districts, so when the priority of the resident frequency of UE is limit priority, when having only the channel quality of the current persistent district of UE to be lower than certain thresholding, UE just can start the measurement of other sub-districts and then carry out reselection evaluation, when this frequency does not have proper cell, just might gravity treatment arrive other frequencies.
Current LTE system intermediate-frequeney point priority is 0～7 integer, promptly comprises eight frequency priority.Wherein, 0 is lowest priority, and 7 is limit priority.
UE can find to lay equal stress on to choose the CSG sub-district by general cell re-selection procedure or the automatic function of search (autonomous search function) of the closed user group of UE (CSG), perhaps by manual selection function search of CSG and the resident CSG sub-district of arriving.Concrete:
The first, general cell re-selection procedure:
UE is according to above-mentioned cell reselection rules, can gravity treatment to a CSG sub-district, and carry out normally resident;
The second, the automatic function of search of the CSG of UE:
Gravity treatment to the CSG sub-district can be based on the automatic function of search of UE.Automatically when function of search determines UE/where carries out Cell searching, and not needing network assistance which is indicated is the special-purpose frequency of CSG.If UE does not belong to any CSG, when also the CSG white list of promptly preserving when the UE side (WhiteList) was empty, the automatic function of search of CSG was then disabled.
Based on the general standard and the automatic function of search of CSG of the gravity treatment of above-mentioned sub-district, CSG is special, and the gravity treatment rule is as follows:
If UE detects a CSG sub-district on the alien frequencies frequency, this sub-district signal quality optimum and UE on the frequency at place belong to the closed user group of this sub-district, and this UE can be regardless of the normal gravity treatment rule of frequency prioritization, and directly gravity treatment is to this sub-district.
The 3rd, the manual selection function of CSG:
For available CSG/hybrid (mixed mode) sub-district, support manual selection function.The hybrid sub-district preferentially guarantees the CSG Member Users, also can admit non-Member Users simultaneously.
The manual selection function of CSG makes the user to select CSG to insert voluntarily.In the manual selection function of CSG, UE can scan all band supports based on user's request, shows Public Land Mobile Nerwork (PLMN) and closed user group id (CSG ID) or relevant Home eNodeB (HeNB) title (under the situation of broadcasting CSG cell information) found.When the user selects certain CSG, UE will select a sub-district to initiate Location Registration in the available cell of this CSG.If selected sub-district is the signatory CSG sub-district of UE, then UE can reside in this sub-district.CSG manually selects flow process as shown in Figure 2:
Step 1: the user triggers the manual selection course of CSG, and the Non-Access Stratum of UE (NAS) sends manual CSG searching request to Access Layer (AS);
Step 2:AS carries out frequency scan, the CSG of search available cell, and read cell system information with information such as acquisition CSG ID;
Step 3:AS reports the information of the available CSG that searches to NAS;
Step 4:NAS selects a CSG from the CSG that AS reports;
The CSG that step 5:NAS notice AS selects;
Step 6:AS selects appropriate C SG sub-district;
Step 7:AS initiates Location Registration flow process to the CSG sub-district of selecting to network side, and when in this CSG sub-district being the signatory CSG sub-district of UE, UE can reside in this sub-district.
For receiving MBMS or to the interested UE of certain MBMS, in order to guarantee that it can residently receive MBMS to correct frequency, with the continuity that guarantees that MBMS receives, that current solution is that the priority of UE MBMS place frequency is set to is the highest (does not consider the frequency precedence information that once was assigned with before this frequency, and be higher than priority 7), use general cell reselection rules then.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
In the prior art, because the behavior of Idle state UE is not subjected to network control, after the UE that receives MBMS enters the coverage of a CSG who is allowed to, according to current agreement flow process, UE will enter CSG sub-district and acceptance service.Because Home eNodeB does not provide MBMS service, the MBMS that UE is receiving will be interrupted.
Summary of the invention
The embodiment of the invention provides a kind of residence reselecting and equipment, is used to improve the continuity that UE receives the MBMS data.
A kind of residence reselecting, this method comprises:
Terminal is when receiving multimedia broadcast multicast service MBMS data or definite interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Terminal is carried out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the closed subscriber group (CSG) sub-district.
A kind of terminal, this terminal comprises:
Priority is provided with the unit, is used for when receiving multimedia broadcast multicast service MBMS data or definite interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Gravity treatment unit, sub-district is used for carrying out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the closed subscriber group (CSG) sub-district.
In this programme, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority that MBMS transmits the place frequency is set to limit priority, and is carrying out forbidding in the cell reselection process that gravity treatment arrives the CSG sub-district according to the frequency priority after being provided with.Because the priority that MBMS transmits the place frequency is set to limit priority, therefore reduced the possibility of terminal from MBMS transmission place frequency gravity treatment to other frequencies, improved terminal is transmitted the place frequency from other frequency gravity treatments to MBMS possibility; Owing to forbid that gravity treatment arrives the CSG sub-district, therefore avoided because the possibility of the reception MBMS data interruption that the terminal gravity treatment is caused to the CSG sub-district, thereby improved the continuity of UE reception MBMS data.
A kind of residence reselecting, this method comprises:
Terminal is when receiving multimedia broadcast multicast service MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Terminal is forbidden the automatic function of search of the CSG of self and is carried out the sub-district gravity treatment according to the frequency priority after being provided with.
A kind of terminal, this terminal comprises:
Priority is provided with the unit, is used for when receiving multimedia broadcast multicast service MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Automatically the search limiting unit is used to forbid the automatic function of search of CSG of terminal and carries out the sub-district gravity treatment according to the frequency priority after being provided with.
In this programme, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority that MBMS transmits the place frequency is set to limit priority and forbids the automatic function of search of CSG of self, and carries out the sub-district gravity treatment according to the frequency priority after being provided with.Because the priority that MBMS transmits the place frequency is set to limit priority, therefore reduced the possibility of terminal from MBMS transmission place frequency gravity treatment to other frequencies, improved terminal is transmitted the place frequency from other frequency gravity treatments to MBMS possibility; Owing to forbid the automatic function of search of CSG of self, therefore reduced the possibility of terminal gravity treatment to the CSG sub-district, also just reduce the possibility of the reception MBMS data interruption that causes to the CSG sub-district owing to gravity treatment, thereby improved the continuity of UE reception MBMS data.
Description of drawings
Fig. 1 be in the prior art MBMS service area and MBSFN zone concern schematic diagram;
Fig. 2 manually selects schematic flow sheet for CSG in the prior art;
The method flow schematic diagram that Fig. 3 provides for the embodiment of the invention;
The other method schematic flow sheet that Fig. 4 provides for the embodiment of the invention;
Fig. 5 A is the sub-district gravity treatment schematic diagram of the embodiment of the invention four;
Fig. 5 B is the sub-district gravity treatment schematic diagram of the embodiment of the invention five;
The device structure schematic diagram that Fig. 6 provides for the embodiment of the invention;
Another device structure schematic diagram that Fig. 7 provides for the embodiment of the invention.
Embodiment
In order to improve the continuity that UE receives the MBMS data, the embodiment of the invention provides a kind of residence reselecting, in this method, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority of transmitting the place frequency except MBMS is set to the limit priority, forbids that also gravity treatment is to the CSG sub-district in cell reselection process.
Referring to Fig. 3, the residence reselecting that the embodiment of the invention provides may further comprise the steps:
Step 30: terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Step 31: terminal is carried out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the CSG sub-district.
In the step 30, terminal is determined the interested MBMS of current existence self, and its specific implementation can be as follows:
Terminal is determined current network side MBMS data to be sent or that sending according to the broadcast/multi broadcast information that reads, and the current MBMS data that need reception of definite terminal; If when comprising the MBMS data of the current needs reception of terminal in the current network side MBMS data to be sent or that sending, then terminal is determined the interested MBMS of current existence self.
In the step 31, terminal forbids that in cell reselection process gravity treatment arrives the CSG sub-district, and its specific implementation can be as follows:
Terminal according to behind re-selecting cell of cell reselection rules selection, determines whether the re-selecting cell of selecting is the CSG sub-district in cell reselection process; If then choose a non-CSG sub-district again as re-selecting cell; Otherwise, be initiated to the gravity treatment flow process of the re-selecting cell of selection.Here, when choosing non-CSG sub-district again, specifically can choose the non-CSG sub-district that channel quality meets the demands and channel quality is best, perhaps the non-CSG sub-district that meets the demands of channel quality of picked at random.
Preferable, terminal is also forbidden the automatic function of search of CSG of self when receiving the MBMS data or determining the interested MBMS of current existence self.Thereby can further improve the continuity that UE receives the MBMS data.Forbid that the automatic function of search of CSG carries out before can being set to limit priority in the priority that MBMS transmits the place frequency, also can carry out simultaneously, carry out after can also being set to limit priority in the priority that MBMS transmits the place frequency, as long as before carrying out the sub-district gravity treatment, carry out according to the frequency priority after being provided with.
Preferable, if terminal has been forbidden the automatic function of search of CSG of self in this method, then when network side stopped to send described MBMS data or terminal and determines described MBMS lost interest in, terminal reverted to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; And,
Terminal is opened the automatic function of search of CSG of self; Perhaps, terminal is opened the automatic function of search of CSG of self, and cancels and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, uses the general cell reselection rules of stipulating in the 3GPP36.304 agreement to carry out follow-up cell re-selection procedure; Perhaps, terminal is cancelled and is forbidden that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, uses the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell re-selection procedure.Thereby make that terminal can be according to existing cell reselection rules gravity treatment to the CSG sub-district.
If terminal is not forbidden the automatic function of search of CSG of self in this method, then when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process.Thereby make that terminal can be according to existing cell reselection rules gravity treatment to the CSG sub-district.
Preferable, if the current CSG sub-district that resides in of terminal, then terminal can also be cancelled in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.Also promptly, the priority with this place, CSG sub-district frequency reverts to the priority of network side for this frequency point allocation.Carry out before specifically can being set to limit priority in the priority that MBMS transmits the place frequency, also can carry out simultaneously, carry out after can also being set to limit priority in the priority that MBMS transmits the place frequency, as long as before carrying out the sub-district gravity treatment, carry out according to the frequency priority after being provided with.
Preferable, if the user has triggered the manual selection course of CSG, the CSG that selects according to the user of terminal then, resident sub-district to this CSG.Thereby make that UE can be resident to the CSG sub-district according to user's wish.Specifically can referring in the background technology to the description of Fig. 2.
In this method, the limit priority in the step 30 is the priority that is higher than the high frequency points priority of network configurations shown.For example, frequency priority that can configurations shown in the current LTE system is 0～7 integer, promptly comprises eight frequency priority, and wherein, 0 is lowest priority, and 7 is limit priority.Then the limit priority that is provided with in the step 30 is to be 8.
In order to improve the continuity that UE receives the MBMS data, the embodiment of the invention provides another kind of residence reselecting, in this method, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority of transmitting the place frequency except MBMS is set to the limit priority, also forbids the automatic function of search of CSG of self.
Referring to Fig. 4, the embodiment of the invention also provides a kind of residence reselecting, may further comprise the steps:
Step 40: terminal is when receiving MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Step 41: terminal is forbidden the automatic function of search of the CSG of self and is carried out the sub-district gravity treatment according to the frequency priority after being provided with.
Preferable, if the current CSG sub-district that resides in of terminal, then terminal is also cancelled in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.Also promptly, the priority with this place, CSG sub-district frequency reverts to the priority of network side for this frequency point allocation.Carry out before specifically can being set to limit priority in the priority that MBMS transmits the place frequency, also can carry out simultaneously, carry out after can also being set to limit priority in the priority that MBMS transmits the place frequency, as long as before carrying out the sub-district gravity treatment, carry out according to the frequency priority after being provided with.
Preferable, if network side stops to send described MBMS data or terminal is determined described MBMS is lost interest in, then terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; And, open self the automatic function of search of CSG.Thereby make that terminal can be according to existing cell reselection rules gravity treatment to the CSG sub-district.
Preferable, if the user has triggered the manual selection course of CSG by terminal, the CSG that selects according to the user of terminal then, resident sub-district to this CSG.Thereby make that UE can be resident to the CSG sub-district according to user's wish.Specifically can referring in the background technology to the description of Fig. 2.
In this method, described limit priority is the priority that is higher than the high frequency points priority of network configurations shown.For example, frequency priority that can configurations shown in the current LTE system is 0～7 integer, promptly comprises eight frequency priority, and wherein, 0 is lowest priority, and 7 is limit priority.Then the limit priority that is provided with in the step 30 is to be 8.
The present invention will be described below in conjunction with specific embodiment:
The present invention guarantees that by revising the relevant protocol specification of priority Idle state UE receives the continuity of MBMS data.Concrete:
If UE is just going up at MBMS frequency (CC) and is receiving the MBMS data, perhaps there is the interested MBMS of UE, UE is except the priority of MBMS CC is set to the limit priority, also needs to revise the relevant gravity treatment rule of priority, avoids the interruption of the reception MBMS data that gravity treatment causes to the CSG sub-district:
Embodiment one:
In the present embodiment, for fear of gravity treatment in general sub-district reselection evaluation to HeNB (CSG sub-district), UE also will forbid the gravity treatment of UE to low priority CSG sub-district except MBMS CC is made as the limit priority.
Step 1: terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Step 2: terminal is selected re-selecting cell according to the frequency priority after being provided with according to existing cell reselection rules; If the re-selecting cell selected is the CSG sub-district, UE will not consider it as the reselection candidate sub-district, but reselect other sub-districts as the reselection candidate sub-district.
Optionally, it is follow-up when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process.
Embodiment two:
In the present embodiment, for fear of gravity treatment in the reselection evaluation of CSG sub-district to HeNB (CSG sub-district), UE also will forbid the automatic function of search of CSG of UE except MBMS CC is made as the limit priority., the automatic function of search of the CSG of UE is not subjected to the restriction of cell reselection priority because allowing UE search CSG sub-district, all can carry out gravity treatment as long as satisfy signal conditioning and UE for its member's CSG sub-district, even so be made as cell reselection priority the highest, UE still may gravity treatment arrive the CSG sub-district according to current standard, causes interrupting the reception of MBMS data.
Step 1: terminal is when receiving MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority, and forbids the automatic function of search of CSG of self;
Step 2: terminal is carried out the sub-district gravity treatment according to the frequency priority after being provided with according to existing cell reselection rules.
Optionally, it is follow-up when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency, and opens the automatic function of search of CSG of self.
Based on top two embodiment, under the highest situation of MBMS CC frequency priority, UE only can gravity treatment also interrupt receiving the MBMS data to other sub-districts under the situation of this cell signal condition variation, and under the situation that the cell signal condition improves on the MBMS CC, gravity treatment is immediately gone back to the sub-district that MBMS is provided and is continued to receive interested MBMS data, can not be subjected to the influence of CSG sub-district gravity treatment restriction.
Embodiment three:
In the present embodiment, for fear of gravity treatment in the reselection evaluation of CSG sub-district to HeNB (CSG sub-district), UE will forbid also that except MBMS CC is made as the limit priority UE is to the gravity treatment of low priority CSG sub-district and the automatic function of search of CSG of forbidding UE.
Step 1: terminal is when receiving MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority, and forbids the automatic function of search of CSG of self;
Step 2: terminal is selected re-selecting cell according to the frequency priority after being provided with according to existing cell reselection rules; If the re-selecting cell selected is the CSG sub-district, UE will not consider it as the reselection candidate sub-district, but reselect other sub-districts as the reselection candidate sub-district.
Optionally, follow-up when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; Cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process; And the automatic function of search of the CSG that opens self.
Based on top three embodiment, under the highest situation of MBMS CC frequency priority, UE only can gravity treatment also interrupt receiving the MBMS data to other sub-districts under the situation of this cell signal condition variation, and under the situation that the cell signal condition improves on the MBMS CC, gravity treatment is immediately gone back to the sub-district that MBMS is provided and is continued to receive interested MBMS data, can not be subjected to the influence of CSG sub-district gravity treatment restriction.
Embodiment four:
Shown in Fig. 5 A, flow process is as follows:
After step 1:UE resided in the CSG sub-district, the priority of the frequency at this place, CSG sub-district was set to limit priority;
After MBMS of step 2:UE was set to interested business, the priority of this MBMS transmission place frequency was set to limit priority; And cancel limit priority setting to this place, CSG sub-district frequency; And the automatic function of search of the CSG that forbids self;
Step 3:UE carries out the sub-district gravity treatment according to the frequency priority after being provided with and carries out the sub-district gravity treatment, and the sub-district of MBMS transmission place frequency has been arrived in gravity treatment, receives the MBMS data in this sub-district.
Through above-mentioned change flow process, UE is able to the gravity treatment of smooth sub-district to MBMS CC and receive the MBMS data.
Embodiment five:
Present embodiment can be after embodiment four, and shown in Fig. 5 B, flow process is as follows:
Step 1: if network side stops to send the MBMS data or terminal is determined described MBMS is lost interest in, UE reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; And the automatic function of search of the CSG that opens self;
Step 2:UE carries out the sub-district gravity treatment according to existing cell reselection rules after entering the CSG coverage, the CSG sub-district under the HeNB has been arrived in gravity treatment.
By top two embodiment, as can be seen, even fully in the CSG cell coverage area, UE also can be by being provided with the whether interested switch of MBMS, reach the purpose that in the CSG coverage, receives the MBMS data, and along with UE is provided with, UE can realize having or not or whether interested automatic switchover based on MBMS between CSG sub-district and MBMS CC.And for to the successional consideration of user MBMS, when receiving or when interested in MBMS, UE has closed the automatic function of search of CSG, has saved unnecessary UE reselection evaluation and electric weight expense.
Embodiment six:
Present embodiment can be after embodiment four.Present embodiment provides another method, and the user uses the manual selection function of CSG, finishes the access change behavior from MBMS CC to the CSG sub-district.
Step 1: the user triggers the manual selection course of CSG;
Step 2: terminal is according to user's selection, resident sub-district to a CSG.At this moment, because user's wish has been altered to the CSG sub-district that does not have the MBMS data to send, the MBMS business of UE is interrupted.
Step 3: can reside in the CSG sub-district that the user manually chooses in order to make UE, and not taking place, ping-pong reselection do not return MBMS place frequency, when the user trigger manual CSG select resident after a CSG sub-district, UE automatically be provided with before possible all to MBMS interested setting cancel.
And, owing to receive MBMS data and resident can not carrying out simultaneously in the CSG sub-district, when the user manually selects CSG and UE to have interested MBMS/ receiving the MBMS data, UE needs to inform to the user by interface display: in case select resident to the CSG sub-district, the MBMS transmission will be interrupted, and perhaps interested setting of MBMS will be cancelled.
Terminal among the present invention can be the terminal of Idle state.
Referring to Fig. 6, the embodiment of the invention also provides a kind of terminal, and this terminal comprises:
Priority is provided with unit 60, is used for when receiving multimedia broadcast multicast service MBMS data or definite interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Gravity treatment unit, sub-district 61 is used for carrying out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the closed subscriber group (CSG) sub-district.
Gravity treatment unit, described sub-district 61 is used for:
In cell reselection process,, determine whether this re-selecting cell is the CSG sub-district according to behind re-selecting cell of cell reselection rules selection; When being defined as being, choose a non-CSG sub-district again as re-selecting cell.
This terminal also comprises:
Automatically search limiting unit 62 is used for forbidding the automatic function of search of CSG of terminal when receiving the MBMS data or determining the interested MBMS of current existence self.
Described priority is provided with unit 60 and also is used for:
If the current CSG sub-district that resides in of terminal, then cancel in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
This terminal also comprises:
The first gravity treatment recovery unit 63 is used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, and the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation; And,
Open the automatic function of search of CSG of terminal; And/or, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell re-selection procedure.
This terminal also comprises:
The second gravity treatment recovery unit 64, be used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process.
This terminal also comprises:
Manually CSG selected cell 65 is used for when the user has triggered the manual selection course of CSG, according to the CSG that the user selects, and resident sub-district to this CSG.
Described manual CSG selected cell 65 also is used for: resident after the sub-district of CSG, with existing to MBMS interested setting cancel.
Described manual CSG selected cell 65 also is used for: when the user selects CSG, send prompting to the user: if select the resident CSG sub-district of arriving, then the MBMS transmission will be interrupted or interested setting of MBMS will be cancelled.
Referring to Fig. 7, the embodiment of the invention also provides a kind of terminal, and this terminal comprises:
Priority is provided with unit 70, is used for when receiving multimedia broadcast multicast service MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Automatically search limiting unit 71 is used to forbid the automatic function of search of CSG of terminal and carries out the sub-district gravity treatment according to the frequency priority after being provided with.
Described priority is provided with unit 70 and also is used for:
If the current CSG sub-district that resides in of terminal, then cancel in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
This terminal also comprises:
Gravity treatment recovery unit 72 is used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, and the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation; And,
Open the automatic function of search of CSG of terminal.
This terminal also comprises:
Manually CSG selected cell 73 is used for when the user has triggered the manual selection course of CSG by terminal, according to the CSG that the user selects, and resident sub-district to this CSG.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority that MBMS transmits the place frequency is set to limit priority, and is carrying out forbidding in the cell reselection process that gravity treatment arrives the CSG sub-district according to the frequency priority after being provided with.Because the priority that MBMS transmits the place frequency is set to limit priority, therefore reduced the possibility of terminal from MBMS transmission place frequency gravity treatment to other frequencies, improved terminal is transmitted the place frequency from other frequency gravity treatments to MBMS possibility; Owing to forbid that gravity treatment arrives the CSG sub-district, therefore avoided because the possibility of the reception MBMS data interruption that the terminal gravity treatment is caused to the CSG sub-district, thereby improved the continuity of UE reception MBMS data.
In the scheme that the embodiment of the invention provides, terminal is when receiving the MBMS data or determining the interested MBMS of current existence self, the priority that MBMS transmits the place frequency is set to limit priority and forbids the automatic function of search of CSG of self, and carries out the sub-district gravity treatment according to the frequency priority after being provided with.Because the priority that MBMS transmits the place frequency is set to limit priority, therefore reduced the possibility of terminal from MBMS transmission place frequency gravity treatment to other frequencies, improved terminal is transmitted the place frequency from other frequency gravity treatments to MBMS possibility; Owing to forbid the automatic function of search of CSG of self, therefore reduced the possibility of terminal gravity treatment to the CSG sub-district, also just reduce the possibility of the reception MBMS data interruption that causes to the CSG sub-district owing to gravity treatment, thereby improved the continuity of UE reception MBMS data.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (28)
1. a residence reselecting is characterized in that, this method comprises:
Terminal is when receiving multimedia broadcast multicast service MBMS data or definite interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Terminal is carried out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the closed subscriber group (CSG) sub-district.
2. the method for claim 1 is characterized in that, describedly forbids that in cell reselection process gravity treatment comprises to the CSG sub-district:
Terminal according to behind re-selecting cell of cell reselection rules selection, determines whether this re-selecting cell is the CSG sub-district in cell reselection process; When being defined as being, choose a non-CSG sub-district again as re-selecting cell.
3. the method for claim 1 is characterized in that, this method further comprises:
Terminal is also forbidden the automatic function of search of CSG of self when receiving the MBMS data or determining the interested MBMS of current existence self.
4. the method for claim 1 is characterized in that, this method further comprises:
If the current CSG sub-district that resides in of terminal, then terminal is cancelled in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
5. method as claimed in claim 3 is characterized in that, this method further comprises:
If network side stops to send described MBMS data or terminal is determined described MBMS is lost interest in, then terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; And,
Terminal is opened the automatic function of search of CSG of self; And/or, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell re-selection procedure.
6. as arbitrary described method in claim 1 or 2 or 4, it is characterized in that this method further comprises:
If network side stops to send described MBMS data or terminal is determined described MBMS is lost interest in, then terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process.
7. as arbitrary described method among the claim 1-5, it is characterized in that this method further comprises:
If the user triggered the manual selection course of CSG, the CSG that selects according to the user of terminal then, resident sub-district to this CSG.
8. method as claimed in claim 7 is characterized in that, resident after the sub-district of this CSG in terminal, this method further comprises:
Terminal with existing to MBMS interested setting cancel.
9. method as claimed in claim 7 is characterized in that, when the user selected CSG, this method further comprised:
Terminal is sent prompting to the user: if select the resident CSG sub-district of arriving, then the MBMS transmission will be interrupted or interested setting of MBMS will be cancelled.
10. as arbitrary described method among the claim 1-5, it is characterized in that described limit priority is the priority of the high frequency points priority that is higher than that network show to distribute.
11. a residence reselecting is characterized in that, this method comprises:
Terminal is when receiving multimedia broadcast multicast service MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Terminal is forbidden the automatic function of search of the CSG of self and is carried out the sub-district gravity treatment according to the frequency priority after being provided with.
12. method as claimed in claim 11 is characterized in that, this method further comprises:
If the current CSG sub-district that resides in of terminal, then terminal is cancelled in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
13., it is characterized in that this method further comprises as claim 11 or 12 described methods:
If network side stops to send described MBMS data or terminal is determined described MBMS is lost interest in, then terminal reverts to the priority of network side for this frequency point allocation with the priority that MBMS transmits the place frequency; And,
Open the automatic function of search of CSG of self.
14., it is characterized in that this method further comprises as claim 11 or 12 described methods:
If the user triggered the manual selection course of CSG by terminal, the CSG that selects according to the user of terminal then, resident sub-district to this CSG.
15., it is characterized in that described limit priority is the priority of the high frequency points priority that is higher than that network show to distribute as claim 11 or 12 described methods.
16. a terminal is characterized in that, this terminal comprises:
Priority is provided with the unit, is used for when receiving multimedia broadcast multicast service MBMS data or definite interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Gravity treatment unit, sub-district is used for carrying out the sub-district gravity treatment according to the frequency priority after being provided with, and forbids that in cell reselection process gravity treatment arrives the closed subscriber group (CSG) sub-district.
17. terminal as claimed in claim 16 is characterized in that, gravity treatment unit, described sub-district is used for:
In cell reselection process,, determine whether this re-selecting cell is the CSG sub-district according to behind re-selecting cell of cell reselection rules selection; When being defined as being, choose a non-CSG sub-district again as re-selecting cell.
18. terminal as claimed in claim 16 is characterized in that, this terminal also comprises:
Automatically the search limiting unit is used for forbidding the automatic function of search of CSG of terminal when receiving the MBMS data or determining the interested MBMS of current existence self.
19. terminal as claimed in claim 16 is characterized in that, described priority is provided with the unit and also is used for:
If the current CSG sub-district that resides in of terminal, then cancel in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
20. terminal as claimed in claim 18 is characterized in that, this terminal also comprises:
The first gravity treatment recovery unit is used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, and the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation; And,
Open the automatic function of search of CSG of terminal; And/or, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell re-selection procedure.
21., it is characterized in that this terminal also comprises as arbitrary described terminal in claim 16 or 17 or 19:
The second gravity treatment recovery unit, be used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation, cancel and forbid that in cell reselection process gravity treatment arrives the restriction of CSG sub-district, use the general cell reselection rules of stipulating in 3GPP 36.304 agreements to carry out follow-up cell reselection process.
22., it is characterized in that this terminal also comprises as arbitrary described terminal among the claim 16-20:
Manually the CSG selected cell is used for when the user has triggered the manual selection course of CSG, according to the CSG that the user selects, and resident sub-district to this CSG.
23. terminal as claimed in claim 22 is characterized in that, described manual CSG selected cell also is used for:
Resident after the sub-district of CSG, with existing to MBMS interested setting cancel.
24. terminal as claimed in claim 22 is characterized in that, described manual CSG selected cell also is used for:
When the user selects CSG, send prompting to the user: if select the resident CSG sub-district of arriving, then the MBMS transmission will be interrupted or interested setting of MBMS will be cancelled.
25. a terminal is characterized in that, this terminal comprises:
Priority is provided with the unit, is used for when receiving multimedia broadcast multicast service MBMS data or the interested MBMS of current existence self, and the priority that MBMS transmits the place frequency is set to limit priority;
Automatically the search limiting unit is used to forbid the automatic function of search of CSG of terminal and carries out the sub-district gravity treatment according to the frequency priority after being provided with.
26. terminal as claimed in claim 25 is characterized in that, described priority is provided with the unit and also is used for:
If the current CSG sub-district that resides in of terminal, then cancel in resident limit priority setting to this place, CSG sub-district frequency during to this CSG sub-district.
27., it is characterized in that this terminal also comprises as claim 25 or 26 described terminals:
The gravity treatment recovery unit is used for when network side stops to send described MBMS data or terminal and determines described MBMS lost interest in, and the priority of MBMS being transmitted the place frequency reverts to the priority of network side for this frequency point allocation; And,
Open the automatic function of search of CSG of terminal.
28., it is characterized in that this terminal also comprises as claim 25 or 26 described terminals:
Manually the CSG selected cell is used for when the user has triggered the manual selection course of CSG by terminal, according to the CSG that the user selects, and resident sub-district to this CSG.
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| CN 201110191197 CN102238483B (en) | 2011-07-08 | 2011-07-08 | Cell reselecting method and equipment |
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| CN102238483B (en) | 2013-12-25 |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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