CN101400028A - Cell switching method and device - Google Patents
Cell switching method and device Download PDFInfo
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- CN101400028A CN101400028A CNA2007101754307A CN200710175430A CN101400028A CN 101400028 A CN101400028 A CN 101400028A CN A2007101754307 A CNA2007101754307 A CN A2007101754307A CN 200710175430 A CN200710175430 A CN 200710175430A CN 101400028 A CN101400028 A CN 101400028A
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Abstract
The invention discloses a cell switching method comprising: wireless network controller RNC notifies basic information of target cell and MBMS point-to-multipoint control channel MCCH channel related parameter of user equipment UE; the UE acquires target cell MBMS control information from target cell MCCH channel, establishes MBMS service loading of target cell according to acquired MBMS control information; the UE switches to target cell to receives MBMS service data. The invention simultaneously discloses a UE and RNC. The inventive technical scheme can guarantee continuity for receiving MBMS service data in cell switching, promote MBMS service data receiving quality of UE.
Description
Technical field
The present invention relates to multi-medium broadcast/group broadcast (MBMS) technology, particularly a kind of cell switching method and system, a kind of subscriber equipment (UE) and a kind of radio network controller (RNC).
Background technology
Multi-medium broadcast/group broadcast (MBMS) business is a kind of important application in the 3G (Third Generation) Moblie technology, can provide the rich and colourful items content for the user.The transmission means of MBMS business has two kinds: an a kind of service transferring mode that is point to multiple spot (P-T-M), another kind is the service transferring mode of point-to-point (P-T-P).
In the MBMS business, when being carried under the ptp mode in current area, subscriber equipment (UE) receives MBMS when professional, if RNC determines to need this UE is switched to other sub-district, and the Target cell that switches to is not supported the PTP bearing mode, perhaps can't set up the PTP link for this UE at Target cell, there are not enough resources to set up the PTP link such as Target cell for this UE, perhaps RNC sets up the PTP link failure at Target cell for this UE, then this UE can only receive the notice of RNC, discharges UE behind the PTP of cell-of-origin link; Perhaps behind the PTP link of the automatic source of release of the PTP link variation UE sub-district of cell-of-origin, mode target approach sub-district by the sub-district gravity treatment, obtain the MBMS business control information of Target cell, just can receive the MBMS business datum at Target cell again afterwards by the PTM pattern.
As seen from the above description, in the existing cell switching method, be carried on the UE that receives the MBMS business datum under the ptp mode and will switch to the Target cell of not supporting ptp mode, perhaps can't set up the Target cell of PTP link for UE, when receiving the MBMS business again, the PTP link that UE must at first discharge in the cell-of-origin, afterwards could be by the mode target approach sub-district of sub-district gravity treatment, and then the MBMS that rebulids Target cell carries, so that receive the MBMS business datum, this method will be destroyed the continuity of UE when receiving the MBMS business datum, reduces the professional quality of reception of UE.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of cell switching method on the one hand, a kind of user equipment (UE) and a kind of radio network controller (RNC) are provided on the other hand, have guaranteed that UE receives the continuity of MBMS business datum in cell switch process, improve the MBMS business datum quality of reception of UE.
The cell switching method that the embodiment of the invention provides comprises:
The essential information of radio network controller (RNC) notifying user equipment UE Target cell and Target cell MBMS point are to multiple spot control channel MCCH channel related parameter;
The MBMS control information that described UE obtains Target cell from described Target cell MCCH channel is based upon MBMS service bearer on the Target cell according to the MBMS control information that gets access to;
Described UE switches to Target cell and receives the MBMS business datum.
The UE that the embodiment of the invention provides comprises:
Measurement report reports the unit, is used for when determining to satisfy the condition of measurement report, to the RNC reporting measurement reports;
MBMS control information acquiring unit is used to receive the essential information and the Target cell MCCH channel related parameter of the Target cell that described RNC issues; The MBMS control information of obtaining Target cell from described Target cell MCCH channel;
Service bearer is set up the unit, is used for being configured according to the MBMS control information of described Target cell, sets up the MBMS service bearer on the Target cell;
PTM mode data receiving element is used for receiving the MBMS business datum from the current sub-district of having set up the MBMS service bearer.
The RNC that the embodiment of the invention provides comprises:
The switch decision unit is used for the measurement report that reports according to UE, judges whether and described UE need be switched to Target cell by the cell-of-origin;
PTP link establishment unit when being used in described switch decision unit determining described UE to be switched to Target cell by the cell-of-origin, determines whether to be that described UE sets up the PTP link at Target cell successfully; If can, then set up the PTP link at Target cell for described UE;
The target cell information sending unit, being used for determining in described PTP link establishment unit to be that UE sets up the PTP link at Target cell successfully, and when Target cell is supported the PTM pattern, notify the essential information and the Target cell MCCH channel related parameter of described UE Target cell.
By the description of above technical scheme as can be known, in the embodiment of the invention, when UE receives the MBMS business datum in the cell-of-origin by ptp mode, if judging, RNC UE need be switched to the Target cell of supporting the PTM pattern, and Target cell is not supported ptp mode, can't be that UE sets up the PTP link at Target cell successfully perhaps, then RNC notifies the essential information of UE Target cell and the MCCH channel relevant parameter of Target cell.Like this, the information that UE can issue according to RNC is at first obtained the MBMS control information of Target cell from the MCCH channel of Target cell, and then carries out the Control Parameter configuration, switches to Target cell and receives the MBMS business datum.By technical scheme provided by the invention, being carried under the ptp mode UE that receives the MBMS business will switch to and not support ptp mode, in the time of perhaps can't successfully setting up the Target cell of PTP link for UE, after not needing to wait for the PTP link that discharges the cell-of-origin, the mode target approach sub-district by the sub-district gravity treatment receives the MBMS business datum again.Therefore occur pausing when the technical scheme provided by the invention UE that can avoid the prior art cell switching method to cause receives the MBMS business datum, guarantee that UE receives the continuity of MBMS business datum in cell switch process, improve the MBMS business datum quality of reception of UE.
Description of drawings
Fig. 1 is the flow chart of cell switching method preferred embodiment of the present invention;
Fig. 2 is the structural representation of the preferred embodiment of subscriber equipment of the present invention;
Fig. 3 is the structural representation of the preferred embodiment of radio network controller of the present invention.
Embodiment
For making purpose of the present invention, technical scheme and beneficial effect clearer,, the present invention is done detailed description further below in conjunction with embodiment and accompanying drawing.
In the embodiment of the invention, when UE receives the MBMS business datum in the cell-of-origin by ptp mode, if judging, RNC UE need be switched to the Target cell of supporting the PTM pattern, and definite Target cell is not supported ptp mode, can't be that UE sets up the PTP link at Target cell successfully perhaps, then RNC notifies the essential information of UE Target cell and the MCCH channel relevant parameter of Target cell; The MBMS control information that UE obtains Target cell from the MCCH channel of Target cell is based upon MBMS service bearer on the Target cell according to the MBMS control information that gets access to, and switches to Target cell and receives the MBMS business datum.
Wherein, RNC determines to be that UE sets up the PTP link at Target cell successfully, may for:
RNC judges Target cell support ptp mode, is that UE sets up the PTP link but Target cell does not have enough resources, and then RNC determines to be that UE sets up the PTP link at Target cell successfully;
Also may for:
RNC judges that Target cell supports ptp mode, and Target cell enough resources are arranged is that UE sets up the PTP link, set up the PTP link failure but RNC is UE at Target cell, then RNC also determines to be that UE sets up the PTP link at Target cell successfully.
When UE switches to Target cell, and after successfully receiving the MBMS business datum, this method may further include:
The PTP link of UE notice RNC source of release sub-district; RNC discharges UE at the PTP of cell-of-origin link.
In addition, this method also comprises: if RNC judges can be that UE sets up the PTP link at Target cell successfully, and then RNC is that UE sets up the PTP link at Target cell, and UE switches on the PTP link of being set up, receive the MBMS business datum, RNC discharges UE at the PTP of cell-of-origin link afterwards.
Fig. 1 is the flow chart of cell switching method preferred embodiment of the present invention, and this flow process comprises the steps:
Step 101, UE receives the MBMS business datum in the cell-of-origin with ptp mode.
Step 102 is when UE determines to satisfy the condition of reporting measurement reports, to the RNC reporting measurement reports.
UE under ptp mode, according to the requirement of RNC periodically or according to the preset trigger condition, as certain event argument, to the RNC reporting measurement reports.
Step 103, RNC receives the measurement report that UE reports, and adjudicates according to the measurement report that receives whether needs switch to Target cell with UE, if do not need, then this flow process finishes; Otherwise execution in step 104.
In this step, RNC judgement whether need with UE switch to Target cell condition can for: according to the measurement report of UE, UE moves to the edge, cell-of-origin or communication environments worsens, and causes received signal quality relatively poor, and the RNC judgement need switch to Target cell with UE; Perhaps RNC determines that according to demands such as load balances needs switch to Target cell with UE.
Step 104, RNC determines whether to be that UE sets up the PTP link at Target cell, if can, then execution in step 105; Otherwise when definite Target cell is supported the PTM pattern, execution in step 106.
In this step, RNC determines whether to be that UE sets up the PTP link at Target cell, specifically can comprise:
RNC judges whether Target cell supports ptp mode, if do not support, then execution in step 105; If support, judge further then whether Target cell has enough resources to set up the PTP link, if enough resources are arranged, then execution in step 105; Otherwise, when definite Target cell is supported the PTM pattern, execution in step 106.
Step 105, RNC is that UE sets up the PTP link at Target cell, and UE switches on the PTP link of being set up, and UE receives the MBMS business datum at Target cell with ptp mode, and RNC discharges UE at the PTP of cell-of-origin link afterwards, and this flow process finishes.
In this step, RNC is that UE sets up the PTP link, and UE to switch to the switching that takes place in process and the general business calling procedure on the PTP link of being set up identical, repeat no more here.
If being UE, RNC sets up the PTP link failure at Target cell, and Target cell support PTM pattern, then execution in step 106.
Step 106, the essential information and Target cell MCCH (the MBMS point is to the multiple spot control channel) channel related parameter of RNC notice UE Target cell.
In this step, RNC can also can notify UE with above-mentioned information by alternate manner by the essential information and the Target cell MCCH channel related parameter of the notice of the Dedicated Control Channel (DCCH) on the PTP link of cell-of-origin UE Target cell.
Step 107, the information that UE issues according to RNC, the MBMS control information of obtaining Target cell to the Target cell MCCH channel.
Here, the MBMS control information can comprise: be used to carry MBMS business that UE receiving in the RB of Target cell information, as logic channel configuration, transmission channel configuration and physical channel configuration etc.
Step 108, UE is configured according to the Control Parameter in the MBMS control information of obtaining, and sets up the MBMS service bearer on the corresponding Target cell.
Step 109, UE stops to receive the MBMS business datum from the cell-of-origin, switches to Target cell simultaneously and receives the MBMS business datum.
Step 110, after UE successfully received the MBMS business datum from Target cell, notice RNC removed the PTP link of cell-of-origin, and RNC discharges UE at the PTP of cell-of-origin link, finishes the link demolishing process.
In order to realize flow process shown in Figure 1, need the MBMS MODIFIEDSERVICES INFORMATION in the existing protocol be made amendment, newly-increased therein adjacent sub-district MCCH information specifically comprises:
The sub-district essential information of adjacent sub-district is as parameters such as frequency and cell scramblings, so that UE knows Target cell;
Auxilliary Common Control Channel (SCCPCH) information of carrying MBMS comprises transmission channel forward access channel/paging transmission channel (FACH/PCH) information on it and transport format information etc.;
Be carried on the MCCH essential information on the FACH transmission channel, control (RLC) information etc. as the Radio Link of MCCH.
The embodiment of the invention provides a kind of UE simultaneously, and Fig. 2 is the structural representation of the preferred embodiment of subscriber equipment of the present invention, and as shown in Figure 2, this UE comprises at least:
Measurement report reports the unit, is used for when determining to satisfy the condition of measurement report, to the RNC reporting measurement reports;
MBMS control information acquiring unit is used to receive the essential information and the Target cell MCCH channel related parameter of the Target cell that RNC issues, the MCCH channel of intercept target sub-district; Obtain the MBMS control information of Target cell from Target cell MCCH channel;
Service bearer is set up the unit, is used for being configured according to the MBMS control information of Target cell, sets up the MBMS service bearer on the Target cell;
PTM mode data receiving element is used for receiving the MBMS business datum from the current sub-district of having set up the MBMS service bearer.
This UE further can comprise:
The link releasing unit, when being used in the Data Receiving unit successfully from Target cell reception MBMS business datum, the PTP link of notice RNC source of release sub-district.
If the Target cell that UE will switch to is supported ptp mode, and RNC can be that UE successfully sets up the PTP link at Target cell, and then UE can also comprise:
Ptp mode Data Receiving unit, being used at RNC is the PTP link that UE sets up at Target cell, receives the MBMS business datum.
The embodiment of the invention also provides a kind of RNC simultaneously, and Fig. 3 is the structural representation of the preferred embodiment of radio network controller of the present invention, and as shown in Figure 3, this RNC comprises at least:
The switch decision unit is used for the measurement report that reports according to UE, judges whether and UE need be switched to Target cell by the cell-of-origin;
PTP link establishment unit when being used in the switch decision unit determining UE to be switched to Target cell by the cell-of-origin, determines whether to be that UE sets up the PTP link at Target cell successfully; If can, then set up the PTP link at Target cell for UE;
The target cell information sending unit, being used for determining in PTP link establishment unit to be that UE sets up the PTP link at Target cell successfully, and when Target cell is supported the PTM pattern, the essential information and the Target cell MCCH channel related parameter of notice UE Target cell.
This RNC may further include:
The link releasing unit is used to receive the notice of the source of release sub-district PTP link that UE sends, and discharges this UE at the PTP of cell-of-origin link.
As seen from the above description, in the embodiment of the invention, when UE receives the MBMS business datum in the cell-of-origin with ptp mode, if judging, RNC UE need be switched to the Target cell of supporting the PTM pattern, and Target cell is not supported the PTP bearing mode, perhaps not having enough resources is that UE sets up the PTP link, is that UE sets up the PTP link failure at Target cell perhaps, then the essential information of RNC notice UE Target cell and the MCCH channel relevant parameter of Target cell.Like this, the information that UE can issue according to RNC is obtained the MBMS control information of Target cell, and then switches to Target cell and receive the MBMS business datum, guarantee the continuity of UE Data Receiving in carrying out cell switch process like this, improved the MBMS business datum quality of reception of UE.
Simultaneously, after UE successfully received the MBMS business datum from Target cell, UE can also notify the PTP link on the RNC source of release sub-district.
In a word, the method, UE and the RNC that utilize the embodiment of the invention to provide can smoothly move in different sub-districts so that receive the UE of MBMS business datum under ptp mode, do not influence the MBMS business datum and receive, and can improve the MBMS business datum quality of reception of UE.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of cell switching method is characterized in that, comprising:
The essential information of radio network controller (RNC) notifying user equipment UE Target cell and Target cell MBMS point are to multiple spot control channel MCCH channel related parameter;
The MBMS control information that described UE obtains Target cell from described Target cell MCCH channel is based upon MBMS service bearer on the Target cell according to the MBMS control information that gets access to;
Described UE switches to Target cell and receives the MBMS business datum.
2, the method for claim 1 is characterized in that, described RNC notifies the essential information and the Target cell MCCH channel related parameter of described UE Target cell by the Dedicated Control Channel DCCH channel on the PTP link of cell-of-origin.
3, method as claimed in claim 1 or 2 is characterized in that, after described UE switched to Target cell reception MBMS business datum, this method further comprised:
Described UE notifies the PTP link of described RNC source of release sub-district; Described RNC discharges described UE at the PTP of cell-of-origin link.
4, method as claimed in claim 1 or 2 is characterized in that, before the essential information and Target cell MCCH channel related parameter of described RNC notice UE Target cell, also comprises:
Described RNC judges need switch to the Target cell of support point to multiple spot PTM pattern by the cell-of-origin with described UE, and definite Target cell do not support ptp mode, and perhaps definite can't be that described UE sets up the PTP link at Target cell successfully.
5, the method for claim 1 is characterized in that, this method further comprises:
When described RNC judge can be successfully be described UE when setting up the PTP link at Target cell, described RNC is that described UE sets up the PTP link at Target cell, described UE switches to and receives the MBMS business datum on the PTP link of being set up; Described RNC discharges described UE at the PTP of cell-of-origin link.
6, a kind of user equipment (UE) is characterized in that, comprising:
Measurement report reports the unit, is used for when determining to satisfy the condition of measurement report, to the RNC reporting measurement reports;
MBMS control information acquiring unit is used to receive the essential information and the Target cell MCCH channel related parameter of the Target cell that described RNC issues; The MBMS control information of obtaining Target cell from described Target cell MCCH channel;
Service bearer is set up the unit, is used for being configured according to the MBMS control information of described Target cell, sets up the MBMS service bearer on the Target cell;
PTM mode data receiving element is used for receiving the MBMS business datum from the current sub-district of having set up the MBMS service bearer.
7, UE as claimed in claim 6 is characterized in that, also comprises:
The link releasing unit when being used in described Data Receiving unit successfully from Target cell reception MBMS business datum, is notified the PTP link of described RNC source of release sub-district.
8, UE as claimed in claim 6 is characterized in that, also comprises:
Ptp mode Data Receiving unit, being used at described RNC is the PTP link that described UE sets up at Target cell, receives the MBMS business datum.
9, a kind of radio network controller (RNC) is characterized in that, comprising:
The switch decision unit is used for the measurement report that reports according to UE, judges whether and described UE need be switched to Target cell by the cell-of-origin;
PTP link establishment unit when being used in described switch decision unit determining described UE to be switched to Target cell by the cell-of-origin, determines whether to be that described UE sets up the PTP link at Target cell successfully; If can, then set up the PTP link at Target cell for described UE;
The target cell information sending unit, being used for determining in described PTP link establishment unit to be that UE sets up the PTP link at Target cell successfully, and when Target cell is supported the PTM pattern, notify the essential information and the Target cell MCCH channel related parameter of described UE Target cell.
10, RNC as claimed in claim 9 is characterized in that, further comprises:
The link releasing unit is used to receive the notice of the source of release sub-district PTP link that described UE sends, and discharges described UE at the PTP of cell-of-origin link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101754307A CN101400028A (en) | 2007-09-29 | 2007-09-29 | Cell switching method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101754307A CN101400028A (en) | 2007-09-29 | 2007-09-29 | Cell switching method and device |
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| CN101400028A true CN101400028A (en) | 2009-04-01 |
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| CNA2007101754307A Pending CN101400028A (en) | 2007-09-29 | 2007-09-29 | Cell switching method and device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011015137A1 (en) * | 2009-08-04 | 2011-02-10 | 华为技术有限公司 | Method, user equipment, access network base station and communication system for choosing carrier wave |
| CN101998261A (en) * | 2009-08-10 | 2011-03-30 | 中兴通讯股份有限公司 | Method for configuring broadcasting service in network side |
| CN102611993A (en) * | 2011-01-19 | 2012-07-25 | 华为技术有限公司 | MCCH (multicast control channel) change notice transmission method, device and system |
| CN102685682A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Method and system for determining target community switched by user equipment |
| CN107920334A (en) * | 2016-10-10 | 2018-04-17 | 成都鼎桥通信技术有限公司 | The method and device of MBMS service continuity is lifted in LTE system |
| CN108696907A (en) * | 2017-03-15 | 2018-10-23 | 普天信息技术有限公司 | A kind of method for releasing of the group service of terminal switching cell triggering |
| CN112243199A (en) * | 2020-09-30 | 2021-01-19 | 腾讯科技（深圳）有限公司 | Switching method and device of MBS (multicast broadcast multicast service), computer readable medium and electronic equipment |
| WO2021179174A1 (en) * | 2020-03-10 | 2021-09-16 | Oppo广东移动通信有限公司 | Data transmission method and apparatus, and network device, and terminal device |
| WO2022021235A1 (en) * | 2020-07-30 | 2022-02-03 | Oppo广东移动通信有限公司 | Mbs service transmission method and apparatus, and communication device |
| CN116134932A (en) * | 2020-05-28 | 2023-05-16 | 京瓷株式会社 | Communication control method and user equipment |
| WO2023231030A1 (en) * | 2022-06-02 | 2023-12-07 | 北京小米移动软件有限公司 | Service processing method and apparatus, indication sending method and apparatus, device, and storage medium |
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- 2007-09-29 CN CNA2007101754307A patent/CN101400028A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011015137A1 (en) * | 2009-08-04 | 2011-02-10 | 华为技术有限公司 | Method, user equipment, access network base station and communication system for choosing carrier wave |
| CN101998261A (en) * | 2009-08-10 | 2011-03-30 | 中兴通讯股份有限公司 | Method for configuring broadcasting service in network side |
| CN102611993A (en) * | 2011-01-19 | 2012-07-25 | 华为技术有限公司 | MCCH (multicast control channel) change notice transmission method, device and system |
| WO2012097689A1 (en) * | 2011-01-19 | 2012-07-26 | 华为技术有限公司 | Method, device and system for transmitting multicast control channel change notification |
| CN102611993B (en) * | 2011-01-19 | 2015-04-29 | 华为技术有限公司 | MCCH (multicast control channel) change notice transmission method, device and system |
| US9930638B2 (en) | 2011-01-19 | 2018-03-27 | Huawei Technologies Co., Ltd. | Method, device and system for transmitting multicast control channel change notification |
| CN102685682A (en) * | 2011-03-17 | 2012-09-19 | 中兴通讯股份有限公司 | Method and system for determining target community switched by user equipment |
| WO2012122816A1 (en) * | 2011-03-17 | 2012-09-20 | 中兴通讯股份有限公司 | Method and system for determining switchover target cell for user equipment |
| CN107920334A (en) * | 2016-10-10 | 2018-04-17 | 成都鼎桥通信技术有限公司 | The method and device of MBMS service continuity is lifted in LTE system |
| CN107920334B (en) * | 2016-10-10 | 2021-05-18 | 成都鼎桥通信技术有限公司 | Method and device for improving MBMS service continuity in LTE system |
| CN108696907A (en) * | 2017-03-15 | 2018-10-23 | 普天信息技术有限公司 | A kind of method for releasing of the group service of terminal switching cell triggering |
| CN108696907B (en) * | 2017-03-15 | 2020-10-30 | 普天信息技术有限公司 | Method for releasing cluster service triggered by terminal switching cell |
| WO2021179174A1 (en) * | 2020-03-10 | 2021-09-16 | Oppo广东移动通信有限公司 | Data transmission method and apparatus, and network device, and terminal device |
| CN116134932A (en) * | 2020-05-28 | 2023-05-16 | 京瓷株式会社 | Communication control method and user equipment |
| WO2022021235A1 (en) * | 2020-07-30 | 2022-02-03 | Oppo广东移动通信有限公司 | Mbs service transmission method and apparatus, and communication device |
| CN112243199A (en) * | 2020-09-30 | 2021-01-19 | 腾讯科技（深圳）有限公司 | Switching method and device of MBS (multicast broadcast multicast service), computer readable medium and electronic equipment |
| CN112243199B (en) * | 2020-09-30 | 2023-05-12 | 腾讯科技（深圳）有限公司 | MBS service switching method and device, computer readable medium and electronic equipment |
| WO2023231030A1 (en) * | 2022-06-02 | 2023-12-07 | 北京小米移动软件有限公司 | Service processing method and apparatus, indication sending method and apparatus, device, and storage medium |
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