CN1836387A - Method for re-selecting a cell for receiving packet data in a mobile communication system providing a multimedia broadcast/multicast service, particularly for transmitting information on a cell capabl - Google Patents

Method for re-selecting a cell for receiving packet data in a mobile communication system providing a multimedia broadcast/multicast service, particularly for transmitting information on a cell capabl Download PDF

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Publication number
CN1836387A
CN1836387A CNA2004800234831A CN200480023483A CN1836387A CN 1836387 A CN1836387 A CN 1836387A CN A2004800234831 A CNA2004800234831 A CN A2004800234831A CN 200480023483 A CN200480023483 A CN 200480023483A CN 1836387 A CN1836387 A CN 1836387A
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mbms
residential quarter
information
cell
business
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CNA2004800234831A
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CN1836387B (en
Inventor
郑景仁
李国熙
金成勋
崔成豪
格特·J·范利肖特
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Priority claimed from PCT/KR2004/002109 external-priority patent/WO2005020474A1/en
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Abstract

A method for selecting a cell by a user equipment (UE) to receive a Multimedia Broadcast/Multicast Service (MBMS) service in a mobile communication system which supports the MBMS service with different frequency allocations (FAs) in the same area. In the method, a radio network controller (RNC) transmits information on an MBMS cell to the UE, and the MBMS cell information includes an MBMS offset for guaranteeing priority for cell reselection to the MBMS cell. The UE performs cell reselection using the MBMS cell information and receives the MBMS service from the reselected cell.

Description

Be used for receiving at the GSM of supporting multimedia broadcast/group broadcast service the residence reselecting of grouped data
Technical field
The present invention relates generally to Packet data service, and more specifically, relate to a kind of method, be used for when residential quarter that Packet data service can be used and the disabled residential quarter of Packet data service are overlapping, with relevant specific cluster data service can with the information of residential quarter send to subscriber equipment (UE), provide Packet data service to UE thus.
Background technology
The figure of the configuration of Fig. 1 is indicative icon general GSM. With reference to figure 1, this GSM-be Universal Mobile Telecommunications System (UMTS) GSM-comprise core net (CN) 100, a plurality of radio network sub-system (RNS) 110 and 120 and subscriber equipment (UE) 130. Among the RNS 110 and 120 each comprises radio network controller (RNC) 111 and 112 and a plurality of Node B 113-116 (being the base station). For example, RNS 110 comprises RNC 111 and Node B 113 and 115, and RNS 120 comprises RNC 112 and Node B 114 and 116.
RNC 111 and 112 operations according to them are classified as professional RNC (SRNC), Drift Radio Network Controller (DRNC) and control RNC (CRNC). This SRNC is that management is about the RNC of the exchanges data of the information of each UE and control and CN 100. When via specific RNC to/during from the data of SRNC sending and receiving UE, this DRNC is this specific RNC. This CRNC is the RNC of each Node B of control.
For example, in Fig. 1, if the information of relevant UE 130 is managed by RNC 111, then RNC 111 is as the SRNC of UE 130, if and because the movement of UE 130 so that the data of UE 130 via RNC 112 sending and receivings, then this RNC 112 becomes the DRNC of UE 130. In addition, the RNC 111 of the control Node B 113 of communicating by letter with UE 130 becomes the CRNC of Node B 113.
In Fig. 1, RNC 111 and 112 is connected to their Node B 113 to 116 via Iub interface, and RNC 111 is connected to RNC 112 via the Iur interface. Although do not illustrate among Fig. 1, UE 130 is connected to UMTS terrestrial radio Access Network (UTRAN) via the Uu interface.
RNC is a plurality of their Node B assigning radio resources, and each Node B will offer UE from the radio resource that RNC assigns. Based on residential quarter one by one and radio resource is provided. The radio resource that Node B provides is the radio resource of the specific cell managed for Node B. UE utilizes the radio resource of the specific cell that Node B manages and sets up radio channel, and utilizes the radio channel set up and the sending/receiving data. Therefore, because UE only is designated each physical channel that each residential quarter forms separately, so the differentiation between Node B and the residential quarter is meaningless and there is no need. Here, term " Node B " and " residential quarter " are used interchangeably.
In order to support multicast/multimedia communication, broadcasting/packet service is provided, one of them data source provides specific transactions for a plurality of UE. Broadcasting/packet service can be divided into the multimedia broadcast/group broadcast service (MBMS) of the cell broadcaste service (CBS) of supporting message based business and support realtime graphic and voice, rest image, text data etc.
Fig. 2 has been indicative icon for the figure that the network configuration of MBMS business is provided at GSM. With reference to figure 2, broadcast/group broadcast-service centre (BM-SC) 210 provides the source of MBMS data flow, and BM-SC 210 scheduling MBMS data flow, and the MSMS data flow of dispatching is delivered to transit network (NW) 220. Transit network 220 is present between BM-SC 210 and service GPRS (general packet radio service) support node (SGSN) 230, and will be delivered to SGSN 230 from the MBMS data flow that BM-SC 210 provides. SGSN 230 can comprise Gateway GPRS Support Node (GGSN) and extranets. The SGSN 230 that receives the MBMS data flow from transit network 220 receives user or the UE control business relevant with MBMS of MBMS business for expectation, namely the control business relevant with MBMS for example is used for the business that management is adjusted the professional of (accounting) relevant data with MBMS and is used for optionally sending to specific RNC 240 the MBMS data. In addition, SGSN 230 disposes and manages the SGSN business contexts of MBMS business X, and this MBMS data flow is delivered to RNC 240.
The a plurality of Node B of RNC 240 control, and the MBMS data are sent to the Node B that the UE of the request MBMS business between its each Node B is positioned at. In addition, RNC 240 control is used for providing the radio channel of MBMS business to set up process, and the MBMS data flow that provides from SGSN 230 is provided and is disposed and manage RNC business contexts for the professional X of MBMS.
Here suppose the residential quarter that Node B 1 (or residential quarter 1) 260 is positioned at corresponding to UE1 261, UE2 262 and UE3 263, and the residential quarter that Node B 2 (or residential quarter 2) 270 is positioned at corresponding to UE4 271 and UE5 272, and between Node B 1 260 and UE 261 to 263, set up a radio channel to provide MBMS professional.
Although do not illustrate among Fig. 2, Home Location Register (HLR) links to each other with SGSN 230, and carries out the user rs authentication that is used for the MBMS business.
To the operation of carrying out between the node that support the MBMS business be described now. Fig. 3 is the message flow chart that illustrates for carry out the process of MBMS business between the UE of RNC and expectation reception MBMS business.
This process comprises that 4 are processed continuously: declaration, adding, notice, radio bearer (Radio Bear, RB) are set up and are processed. The below will describe this 4 processing. In these were processed, RNC provided MBMS professional via Node B to the UE that asks the MBMS business. Although Node B is not shown among Fig. 3, it is apparent to those skilled in the art that the MBMS business is provided via Node B. And, will be to being described for the professional MBMS control message that sends of MBMS.
With reference to figure 3, process by the declaration in the step 331, SGSN 304 announces the essential information of relevant specific MBMS business to particular UE 300, MBMS task identifier (ID) for example, with the information of the availability of relevant MBMS business, the i.e. start time information of MBMS business and Duration Information.
If announce that by MBMS is professional the definite MBMS of expectation that exists of processing is professional, the then processing of the adding in UE 300 execution in step 341 is to be issued to SGSN 304 with the MBMS service request.
In the adding of step 341 was processed, UE 300 message that will join request sent to SGSN 304. This message that joins request comprises: the identification code of the specific MBMS business that UE 300 expectation receives in the MBMS service lists that SGSN 304 sends and expect the UE ID of the UE of this MBMS business. Whether then SGSN 304 carries out checking to the UE 300 that asks this MBMS business, and notify this MBMS business available as the result to UE 300. In addition, SGSN 304 stores the tabulation of the UE that expects the specific MBMS business of reception and the positional information of UE therein.
Thereafter, if received the message of the beginning that shows the MBMS business from BM-SC, then in step 351, SGSN 304 begins the RNC 302 that message sends to the residential quarter that control UE 300 is positioned at session.
In step 352, RNC 302 is by the availability of notification message to UE 300 notifying MBMS services. RNC 302 was assigned to common signal channel with it before this notification message is sent to UE 300, for example Secondary Common Control Physical Channel (S-CCPCH). (MCCH) sends this notification message by the MBMS control channel, will begin to provide MBMS professional to the UE 300 of this MBMS business of expectation to UE 300 notice SGSN 304. This notification message is by a plurality of UE pagings, and is used to the paging of execution group and processes. Group paging in the step 352 is processed to process with independent paging and is differentiated.
In step 361, UE 300 sends to SGSN 304 in response to notification message with push-notification-answer message. RNC 302 determines that by push-notification-answer message the expectation of each residential quarter receives the number of the UE of MBMS business, and determines to the type of the radio channel of respective cell. If the number of the UE of expectation reception MBMS business is more than or equal to predetermined threshold, then RNC 302 is by providing MBMS professional for the common signal channel of point-to-multipoint (point-to-multipoint, PtM) transmission and to UE. Yet if expectation receives the number of UE of MBMS business less than predetermined threshold, RNC 302 provides separately the MBMS business by the dedicated channel that is used for point-to-point (PtP) transmission to each UE.
In step 371, RNC 302 sends to UE 300 by MBMS control channel (MCCH) with the relevant information that is used for the radio bearer (RB) of transmission MBMS business. Based on this MBMS RB information, and between RNC 302 and UE 300, set up radio bearer. RB set up to process delivering with the relevant radio channel that is used for providing the MBMS business to relevant apparatus, the MBMS business that correct recovery sends so that UE 300 can utilize this MBMS RB information. MBMS RB information comprises radio channel information, assembles (convergence) control information etc. such as Orthogonal Variable Spreading Factor OVSF (OVSF) code information, transport format information, radio link control (RLC) information, grouped data.
If the type of MBMS channel is confirmed as the PtP type, then MBMS RB information exchange is crossed DCCH and is sent to UE 300. Yet if the type of MBMS channel is confirmed as the PtM type, MBMS RB information exchange is crossed MCCH and is sent to UE 300.
MCCH provides the channel with the control information of MBMS traffic aided, and the precise characteristics of MCCH at present just under discussion. According to discussion result up to now, MCCH has following characteristic:
1.MCCH for each unit forms separately.
2.MCCH be that public physic channel by for example S-CCPCH sends.
3.UE can obtain the information of the relevant MCCH that forms separately for each unit as system information.
In step 381, RNC 302 will send to from the MBMS data that SGSN 304 provides UE 300 by MBMS RB, and UE 300 receives the MBMS data that send by MBMS RB.
Fig. 4 illustrates a plurality of frequencies are distributed the structure that (FA) overlap each other in the specific region figure. With reference to figure 4, RNC has one or more FA, and provides the MBMS data by these FA. Reference numeral 401,402 shown in Fig. 4,403 represents identical geographic region with 404, and representative wherein utilizes different FA that the residential quarter of MBMS business is provided. The one or more UE that are arranged in 4 FA are provided to from the MBMS data of FA transmission. That is to say that these FA represent the same area of geographical aspect, but with regard to the frequency aspect of supporting the MBMS data, represent 4 different service cells. As mentioned above, traditionally, a plurality of FA overlap each other in same geographic region, and each FA is to the identical MBMS data of one or more UE distributions.
Here, the MBMS data that send are identical MBMS data, and radio resource is assigned to separately each FA, are used for the MBMS data transfer, and this causes the waste of limited radio resource.
If the specific FA place of this MBMS business among each FA is unavailable, then wherein among the professional disabled FA of MBMS included UE can not receive the MBMS business. For example, if FA2402 can support MBMS professional, but FA1401, FA3403 and FA4404 can not support MBMS professional, and it is professional that the UE that then comprises among FA1401, FA3403 and the FA4404 can not receive this MBMS.
So the UE that comprises among a kind of FA to not supporting the MBMS business of needs provides the method for MBMS business.
Summary of the invention
So, an object of the present invention is to provide the method that a kind of UE for allow to be arranged in the disabled residential quarter of Packet data service at GSM receives this Packet data service.
Another object of the present invention provide a kind of for relevant be arranged in same area but have different frequency each residential quarter Packet data service can with the information of residential quarter send to the method for the UE that is positioned at specific cell as system information.
Another object of the present invention provide a kind of for relevant be arranged in same area but have different frequency each residential quarter Packet data service can with the information exchange of residential quarter cross the method that control channel sends to the UE that is positioned at specific cell.
Another object of the present invention provides a kind of method that sends to the UE of the specific cell that is located at each residential quarter that is arranged in same area but has different frequency for the information with relevant adjacent node B.
Another object of the present invention provides a kind of for for the UE of the specific cell that is located at each residential quarter that is arranged in same area but has different frequency, carry out the method that the residential quarter reselects at the preferred frequency band place that is used for the MBMS business.
Another object of the present invention provides a kind of method for reselecting for measurement and inter-frequency cell between the UE that receives the MBMS business at GSM, execution effective frequency.
According to a first aspect of the invention, providing in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at the same area and distribute (FA) selects the residential quarter to receive the method for MBMS business by subscriber equipment (UE), the method comprising the steps of: by radio network controller (RNC) information of relevant MBMS residential quarter is sent to UE, this MBMS cell information comprises be used to guaranteeing that the residential quarter reselects to the MBMS skew of the priority of MBMS residential quarter; Carry out the residential quarter with utilized this MBMS cell information by UE and reselect, and it is professional to receive MBMS from the residential quarter that reselects.
According to a second aspect of the invention, the method that reselects in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at the same area and distribute (FA) for the residential quarter of MBMS business is provided, the method comprising the steps of: by radio network controller (RNC) system information block (SIB) is sent to subscriber equipment (UE), this SIB comprises and indicates the identification information whether neighbor cell can be used for this MBMS business; The residential quarter of carrying out the MBMS residential quarter with utilizing this SIB by UE reselects.
According to a third aspect of the invention we, the method that reselects in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at the same area and distribute (FA) for the residential quarter of MBMS business is provided, and the method comprising the steps of: will indicate the identification information whether neighbor cell can be used for the MBMS business by control message by radio network controller (RNC) and periodically send to subscriber equipment (UE); Reselect with the residential quarter that utilizes the identification information that receives by control message to carry out the MBMS residential quarter by UE.
According to a forth aspect of the invention, provide in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at the same area and distribute (FA) by subscriber equipment (UE) and carried out the method that the residential quarter of preferred frequency band reselects, the method comprising the steps of: receive the information of the optimized frequency that comprises MBMS task identifier (ID), relevant MBMS business and for the message that guarantees that MBMS that the residential quarter reselects is offset from radio network controller; Utilize the information that comprises in this message and carry out inter-frequency measurements; If higher than the received power of the frequency band that is used for current area with the received power of the preferred frequency band that is used for the MBMS residential quarter, then carry out the residential quarter and reselect.
According to a fifth aspect of the invention, provide in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at same geographic region and distribute (FA) by radio network controller (RNC) and provide the method for MBMS business to the subscriber equipment that is arranged in non-MBMS FA (UE), the method comprising the steps of: by RNC the system information block (SIB) that comprises the information of relevant MBMS FA is sent to UE; With with comprise relevant MBMS FA information message cycle send to UE.
According to a sixth aspect of the invention, the method that is received the MBMS business in a kind of GSM of support multimedia broadcast/group broadcast service (MBMS) for having different frequency at same geographic region and distribute (FA) by the subscriber equipment that is arranged in non-MBMS FA (UE) is provided, and the method comprising the steps of: the system information block (SIB) that receives the information that comprises relevant MBMS FA from radio network controller (RNC); Analyze the information of the relevant MBMS FA among the SIB; Reselect with the residential quarter of carrying out MBMS FA based on this analysis result.
According to a seventh aspect of the invention, provide a kind of and distributed the support multimedia broadcast/group broadcast service (MBMS) of (FA) and comprise the method that is received the MBMS business in the GSM of at least one non-MBMS residential quarter by the subscriber equipment that is arranged in non-MBMS FA (UE) for have different frequency at the same area, the method comprising the steps of: the information that is received relevant MBMS residential quarter by UE from radio network controller (RNC); Ask specific MBMS professional by UE; Analyze the information that receives; With reselect the professional available residential quarter of specific MBMS based on this analysis result.
According to an eighth aspect of the invention, provide a kind of for be provided at the same area comprising professional disabled at least one residential quarter of MBMS and provide in the GSM of other residential quarters of MBMS business by radio network controller (RNC) and providing the method for MBMS business to the subscriber equipment (UE) that is arranged in the professional disabled residential quarter of MBMS of different frequency, the method comprising the steps of: send the system information block (SIB) that is used for the MBMS business to UE by RNC; In case receive the request for specific MBMS business, just reselect the professional available residential quarter of specific MBMS by UE; Be used in the radio resource that this specific MBMS business is provided with dividing to UE.
Description of drawings
Following detailed description in conjunction with the drawings, above and other purpose of the present invention, feature and advantage will become clearer, wherein:
The figure of the configuration of Fig. 1 is indicative icon general GSM;
The figure of the configuration of MBMS system that Fig. 2 is indicative icon;
Fig. 3 is the message flow chart of the operation between the node that illustrates in the GSM of supporting the MBMS business;
Fig. 4 is the figure that illustrates the configuration that a plurality of residential quarters overlap each other in the specific region;
Fig. 5 is the message flow chart for the process that reselects the MBMS residential quarter that illustrates according to first embodiment of the invention;
Fig. 6 is the message flow chart for the process that reselects the MBMS residential quarter that illustrates according to second embodiment of the invention;
Fig. 7 is the message flow chart that the execution residential quarter reselects to the process of the preferred frequency band of supporting the MBMS business that is used for that illustrates according to third embodiment of the invention;
Fig. 8 is the flow chart that illustrates according to the operation of the UE of support of the present invention MBMS business; With
Fig. 9 is the flow chart that illustrates according to another operation of the UE of support of the present invention MBMS business.
The specific embodiment
Describe several preferred embodiment of the present invention in detail referring now to accompanying drawing. In the following description, for the sake of simplicity, omitted the known function of merging here and the detailed description of configuration.
The present invention proposes a kind of method for the MBMS business is provided to a plurality of UE that are positioned at the different FA that cover identical geographic region. In addition, the present invention proposes the method that a kind of UE for allowing to be positioned at the professional disabled FA of MBMS receives the MBMS business.
With reference to figure 5, now will to when having the professional available FA of MBMS among a plurality of FA that in the same area, overlap each other, the UE that allows to be arranged in the professional disabled FA of the MBMS method that receives the MBMS business is described.
Fig. 5 is the message flow chart of process that is used for providing to UE the information of the professional available FA of relevant MBMS that illustrates according to the embodiment of the invention. With reference to figure 5, Reference numeral 501 representatives provide the FA (following be called for the sake of simplicity " MBMS FA ") of (or available) MBMS business, and Reference numeral 502 and 503 representatives do not provide the FA (following be called for the sake of simplicity " non-MBMS FA ") of (or unavailable) MBMS business. Reference numeral 501,502 and 503 represents the FA that overlaps each other and use different frequency in same geographic region. Each FA can comprise one or more residential quarters. For the ease of explaining, will suppose that here each FA has a residential quarter. In the following description, term " FA " and " residential quarter " are used interchangeably. Reference numeral 511 representatives are used for providing the RNC of MBMS business, and Reference numeral 521 represents SGSN. In the following description, will suppose that UE is in idle pulley.
In step 531, RNC 511 sends to corresponding FA with the system information block (SIB) that comprises the information of relevant MBMS FA 501. Here, RNC 511 sends to FA 501,502 and 503 with different system information. Thereby, be arranged in FA 501,502 and can have different SIB with 503 UE. RNC 511 adds the information of relevant MBMS FA 501 to SIB recently, and this new SIB is sent to (FA's) all residential quarters 501,502 and 503.
In this respect, the present invention proposes following 3 kinds of methods, be used for definition for the SIB of the information that sends relevant FA.
In the SIB of first method current use in using 3GPP (third generation partnership projects) standard, the information that part is added relevant MBMS FA.
Second method is used the special-purpose SIB that supports the MBMS business.
The third method is added the offset information that is used for MBMS FA. The third method may be used on the SIB that uses according to first method in current 3GPP standard, perhaps may be used on the special-purpose SIB according to the MBMS of second method. In an embodiment of the present invention, the third method is added offset information to first method.
First method
Table 1 illustrates the SIB that information that in the 3GPP standard SIB of current use adds relevant MBMS FA obtains that passes through according to the embodiment of the invention. For brevity, SIB will be called as " SIB 11/12 ". The such information of SIB 11/12 representative, it comprises be used to the information SIB 11 of the UE that is in idle pulley and is used for being in the information SIB 12 of the UE of connection mode.
Table 1
Information element/group name Need Many Type and reference Semantic description Version
Allow the residential quarter indication of MBMS Integer 0,1,2 0 indication does not allow the residential quarter of MBMS, and 1 indication belongs to the residential quarter of the permission MBMS of different nodes B, and 2 indications belong to the residential quarter of the permission MBMS of same node point B
The residential quarter is offset separately   MD The real number of stepping 0.5-10 is to 10 Take dB as unit. Default value is 0dB. Be used for being offset measured numerical value.
Poor with the reference time of residential quarter   OP Poor with the reference time of residential quarter Take chip as unit. For Serving cell, this IE does not exist.
Read the SFN designator   MP Boolean TRUE is designated as the Target cell request and reads SFN.
Preference pattern   MP
  ＞FDD
" main CPICH information   OP Main CPICH information Only when only measuring RSSI (wide-band width measurement), this IE does not exist.
" main CPICH transmitted power   OP Main CPICH transmitted power If the calculating path loss then needs.
" transmission diversity designator   MP Boolean The TRUE indication is used and is sent diversity.
                                                 :                                                  :
SIB 11/12 comprises the measuring control information of using in the residential quarter, and comprises between measuring control information in the frequency, inter-frequency measurements control information, RAT (radio access technologies) and measure control information.
This measuring control information-as the neighbor cell list of the measuring object in the residential quarter-comprise cell information tabulation between cell information tabulation, inter-frequency cell information list, RAT in the frequency.
This neighbor cell list comprises the information of relevant MBMS FA. That is to say that this neighbor cell list comprises frequency information, cell ID, cell information of MBMS FA etc.
The frequency information of FA comprises the absolute radio-frequency channel numbering of up-link UTRAN (UARFCN) and downlink UARFCN.
Cell ID (residential quarter ID) is to task the identification information of each residential quarter in unique minute. That is to say that residential quarter ID minute tasks each residential quarter to be identified at the unique value of a plurality of residential quarters that exist among the FA. This residential quarter ID in the present invention, has a residential quarter because suppose each FA, so also can be used as the ID of sign FA.
The main scrambler of the Primary Common Pilot Channel (P-CPICH) of the residential quarter that the cell information representative is corresponding with MBMS FA.
So RNC 511 is " allowing the residential quarter indication of the MBMS " information-add SIB 11/12 to of table 1 of the information of the professional available residential quarter of relevant MBMS (below be called " MBMS residential quarter ")-namely, and the SIB 11/12 that has added information is sent to UE.
Information is endowed integer value " to allow the residential quarter indication of MBMS ". If allow the residential quarter indication of MBMS to be set to " 0 ", this means that then Target cell or FA 501 are the professional disabled residential quarters (" non-MBMS residential quarter ") of MBMS. Yet, if allow the residential quarter indication of MBMS to be set to " 1 ", this means that Target cell or FA 501 are the MBMS residential quarters that belong to the different Node B of the Node B that is currently located at from UE. In addition, if allow the residential quarter indication of MBMS to be set to " 2 ", this means that then Target cell or FA 501 are the MBMS residential quarters that belong to the identical Node B of Node B corresponding to the residential quarter (FA 502 or FA 503) that is currently located at UE.
Allow the residential quarter indication of MBMS can be optimised for 2 bit lengths, rather than 3 bit lengths shown in the table 1. In this case, when determining the residential quarter that UE is positioned at and being used for Target cell that the residential quarter reselects whether to belong to same Node B, indicate with the residential quarter of the described permission of an integer representative MBMS.
In other words, allow the residential quarter indication of MBMS different with 2 representatives of integer 1 and integer when whether belonging to same Node B from definite MBMS residential quarter, allow the residential quarter indication of MBMS to be set to for the integer 1 of MBMS residential quarter and be used for the integer 0 of non-MBMS residential quarter. With the irrelevant situation of Node B under, adjudicate UE based on frequency measurement and will carry out the residential quarter and reselect to which residential quarter among the available residential quarter of MBMS business. That is to say that as the result of frequency measurement, UE is set to the residential quarter of " 1 " in the residential quarter indication that is arranged in five-star residential quarter selection permission MBMS.
Return with reference to figure 5, in step 531, the UE that is arranged in FA 502 or FA 503 analyzes the SIB 11/12 that sends to separately the residential quarter indication field that allows MBMS comprising of each respective cell, and whether definite neighbor cell can be used for the MBMS business. That is to say, the corresponding UE that is arranged in FA 502 or FA 503 determine based on the residential quarter indication field of the permission MBMS of SIB 11/12 residential quarter that whether adjacent FA 501 can be used for MBMS business and FA 501 whether belong to corresponding to the identical Node B of the Node B of its current area.
Yet the UE that is arranged in the residential quarter of FA 501 can not be based on 501 SIB 11/12 that send and determine whether MBMS residential quarter, its residential quarter from the residential quarter. This is because SIB 11/12 comprises the FA information for neighbor cell.
So the UE that is arranged in FA 501 analyzes the information of relevant MCCH by another SIB that sends to its residential quarter, and definite FA 501 MBMS residential quarter whether. Replacedly, UE is applied to the SIB 3/4 that supports the MBMS business in its residential quarter 501 by " allowing the residential quarter indication of MBMS " information of will be among the SIB 11/12 using and determines whether MBMS residential quarter, its residential quarter 501.
SIB 3/4 comprises the information that the residential quarter is selected and the residential quarter reselects about the UE of the UE of idle pulley and connection mode. SIB 3/4 comprises the residential quarter indication field that allows MBMS, to indicate whether MBMS residential quarter of current area. And the residential quarter indication field of described permission MBMS can be included among other SIB.
So, the UE that is arranged in the residential quarter of FA 501 compares " allowing the residential quarter indication of the MBMS " information of SIB 11/12 use and " indicate the residential quarter of permission MBMS " information that SIB 3/4 uses, if and had the residential quarter indication of the permission MBMS of SIB 3/4, would then determine whether MBMS residential quarter of FA 501.
Second method
Table 2 illustrates the special-purpose SIB according to the support MBMS business of the embodiment of the invention.
Table 2
Information element/group name Need Many Type and reference Semantic description Version
Allow the cell information of MBMS 1 to maxMBMS CellMeas
The indication of＞same services district True indicates this residential quarter to belong to same Node B
＞residential quarter ID
＞frequency information
＞cell information
  ＞＞FDD
The main CPICH information of＞＞＞ Main CPICH information
    :     :
As shown in table 2, RNC 511 arranges the special-purpose SIB of MBMS (or only be used for MBMS SIB) of the information that comprises relevant MBMS residential quarter, and the special-purpose SIB of MBMS is sent to separately respective cell.
The residential quarter of the cell information field indication current UE of the permission MBMS among the special-purpose SIB of MBMS is the MBMS residential quarter whether. If it is the MBMS residential quarter that the residential quarter of current UE, then allows the residential quarter of the cell information field indication current UE of MBMS corresponding to MBMS FA, and the cell information field of described permission MBMS comprises the information of the residential quarter of relevant UE.
Whether indication field indication MBMS residential quarter, same services district among the special-purpose SIB of MBMS has the residential quarter in same services district with the residential quarter of current UE, namely whether the MBMS residential quarter is included in the residential quarter in the Node B identical with the Node B of UE.
The ID of the id field indication MBMS residential quarter, residential quarter among the special-purpose SIB of MBMS.
Frequency information field indication up-link UTRAN absolute RF channel number (UARFCN) and downlink UARFCN among the special-purpose SIB of MBMS.
Cell information field indication among the special-purpose SIB of MBMS is used for the main scrambler corresponding to the Primary Common Pilot Channel (P-CPICH) of the residential quarter of MBMS FA.
So, receive the specific FA of the special-purpose SIB of MBMS or the UE of residential quarter the MBMS service request be issued to the residential quarter that described same services district indication field has true value, and then reselect about execution residential quarter, residential quarter preferentially. Analyzed the special-purpose SIB of the MBMS shown in the table 2 in step 531 after, it is professional that each UE that is arranged in FA 501, FA 502 and FA 503 determines whether its current area can be used for this MBMS.
The third method
Table 3 has proposed a kind of permission UE and has utilized MBMS_Qoffset_s, the method that n information and executing residential quarter reselects. For convenience's sake, this third method is with MBMS_Qoffset_s, and n information is applied to the SIB that uses in the first method. Replacedly, this third method can be with MBMS_Qoffset_s, and n information is applied to the SIB that uses in the second method. SIB representative according to the third method comprises MBMS_Qoffset_s, and the SIB 11/12 of the residential quarter indication field of n field rather than permission MBMS is as shown in table 3.
Table 3
Information element/group name Need Many Type and reference Semantic description Version
 MBMS_Qoffset_s，n   OP Integer Take dB as unit.
For the deviant with respect to Serving cell, and only in the residential quarter that allows MBMS, present this IE.
The residential quarter is offset separately   MD The real number of stepping 0.5-10 is to 10 Take dB as unit. Default value is 0dB. Be used for being offset measured numerical value.
Poor with the reference time of residential quarter   OP Poor with the reference time of residential quarter Take chip as unit. For Serving cell, this IE does not exist.
Read the SFN designator   MP Boolean TRUE is designated as the Target cell request and reads SFN.
Preference pattern   MP
  ＞FDD
" main CPICH information   OP Main CPICH information Only when only measuring RSSI (wide-band width measurement), then this IE does not exist.
" main CPICH transmitted power   OP Main CPICH transmitted power If the calculating path loss then needs.
" transmission diversity designator   MP Boolean The TRUE indication is used and is sent diversity.
                                                  :                                                   :
This MBMS_Qoffset_s, the n value is the optional value that only comprises in SIB 11/12 when supporting the MBMS business as the neighbor cell of frequency measurement object. When the UE that is in idle pulley or CELL_FACH, CELL_PCH and URA_PCH state carries out that the residential quarter is selected and residential quarter when reselecting, use this MBMS_Qoffset_s, the n value.
Return with reference to figure 5, in step 541, the UE among FA 501, FA 502 and the FA 503 carries out adition process (or service request procedure). In the adition process of step 541, each UE among FA 501, FA 502 and the FA 503 will send to SGSN 521 for identification code and the UE ID thereof of expectation MBMS business. UE among 521 couples of FA 501 of this SGSN, FA 502 and the FA 503 carries out checking.
According to first method, in step 551, the UE among the non-MBMS FA502 and 503 preferentially carries out residential quarter indication field that the residential quarter reselects to the permission MBMS among the SIB 11/12 wherein and is set to 2 residential quarter. The residential quarter indication field that if there is no has the permission MBMS of value 2, then UE carries out the residential quarter and reselects to the MBMS residential quarter that the residential quarter indication field that wherein allows MBMS has value 1. In this case, the residential quarter indication field of this permission MBMS has the length of 3 bits.
Yet, have in the residential quarter indication field of this permission MBMS in the situation of length of 2 bits, as the result of frequency measurement, UE carries out the residential quarter and reselects to and be positioned at five-star residential quarter in the MBMS residential quarter. UE among the non-MBMS FA 502 and 503 covers identical service area, and at first carry out in the frequency and measure rather than inter-frequency measurements, thereby preferentially reselect the residential quarter corresponding with MBMS FA 501 rather than cover the special neighbourhood FA (or residential quarter) of another service area.
According to second method, in step 551, the UE among the non-MBMS FA 502 and 503 analyzes the information of relevant MBMS residential quarter by the cell information field of the permission MBMS among the special-purpose SIB of MBMS. In addition, UE analyzes this same services district indication field, whether belongs to the residential quarter of the identical Node B of the Node B that is positioned at them to determine this MBMS residential quarter, and carries out the residential quarter and choose the residential quarter that belongs to same node point B. In order to carry out the residential quarter that reselects to MBMS FA, UE must satisfy the received power measurement result.
According to the third method, in step 551, when the UE in non-MBMS FA 502 and 503 had the MBMS business contexts after step 541 adds the MBMS business, they utilized following formula (3) to carry out the residential quarter and reselect.
Below formula (1) and formula (2) be current formula undefined in the 3GPP standard, that reselected for the residential quarter by UE.
When UE reselected the residential quarter, if as the result of frequency measurement, neighbor cell satisfied the S standard that the residential quarter is selected, and then according to the R standard is sorted successively in the residential quarter. In current 3GPP standard, as the formula of giving a definition the R standard. Because the parameter of using in the following formula defines in 3GPP TS25.304, so will omit its detailed description here.
Rs＝Qmeas，s+Qhysts    ......(1)
Rn＝Qmeas，n-Qoffset，n-Ton*(1-Ln)  ......(2)
Here, Rs represents the R standard of current service cell, and Rn represents the neighbor cell that comprises among the SIB 11/12. As mentioned above, only just use Rn for the residential quarter of satisfying the S standard.
In order to reselect the MBMS residential quarter, if the MBMS_Qoffset_s of table 3, the n value is applied to the R standard of formula (2), and then it becomes formula (3):
Rn＝Qmeas，n-Qoffset，n-Ton*(1-Ln)+MBMS_Qoffset_s，n  ......(3)
In other words, if thereby UE has the MBMS business contexts after step 541 adds the MBMS business receive the MBMS business, and then UE utilizes formula (3) to reselect the residential quarter. That is to say that transmission comprises MBMS_Qoffset_s, the FA 501 of the SIB 11/12 of n value is than the MBMS_Qoffset_s that does not have among the SIB 11/12, and the FA 502 of n value and FA 503 have larger Rn value.
So in step 551, the UE among the non-MBMS FA 502 and 503 reselects has the MBMS_Qoffset_s of comprising, the residential quarter of the SIB 11/12 of n value. By this way, when reselecting according to local resource execution residential quarter, UE utilizes MBMS_Qoffset_s, and the n value has increased the selection possibility of MBMS residential quarter, guarantees thus the continuity of the MBMS business during UE moves.
That is to say that by be used for the MBMS deviant of MBMS residential quarter in the R normalized form reflection that reselects for the residential quarter, the MBMS residential quarter is positioned at higher grade than non-MBMS residential quarter.
So the UE of request MBMS business has increased the possibility that reselects of the residential quarter corresponding with MBMS FA by the R normalized form of revising. With identical MBMS_Qoffset_s, the n value is applied to all residential quarters that wherein can use the MBMS business, or with different MBMS_Qoffset_s, the n value is applied to separately each neighbor cell of current service cell.
In addition, in step 551, can the UE that ask the MBMS business differently be set for the UE that is in idle pulley and the UE that is in connection mode and carry out the time that the residential quarter reselects to the residential quarter of MBMS FA. That is to say, because be in the current MBMS data that do not send of the UE of idle pulley, namely do not carry out specific operation, so it moves to MBMS FA 501 immediately after sending the MBMS service request. Yet when the actual session of MBMS data begins, rather than after sending the MBMS service request, the UE that is in connection mode moves to MBMS FA 501.
In order to simplify the operation of UE, being in can be identical with the UE that is in idle pulley except the operation of the UE of other connection status of CELL_DCH state. In order to simplify the operation of UE, carry out the time that the residential quarter reselects to the MBMS residential quarter although for the UE that is in idle pulley and the UE that is in connection mode UE is set differently in the following description, if carry out the time that the residential quarter reselects to the MBMS residential quarter but use the UE that is in except other connection status of CELL_DCH state as idle pulley, then the operation of UE is identical with the UE that is in idle pulley.
In step 561, the UE that is in idle pulley that the execution residential quarter reselects to MBMS FA 501 sends the dedicated radio resource request in response to user's voice call request, and UE is intended to move to the CELL_DCH state. In this case, owing to except lacking the available dedicated radio resource for the MBMS business is provided the previous resource that keeps, reselect to another residential quarter so UE is intended to carry out the residential quarter.
So, utilize the redirection information field radio resource controller (RRC) connection refused message that in the processing of setting up the RRC connection, sends to UE from RNC, and the residential quarter in the execution in step 561 reselects. That is to say, in step 561, the UE that finishes the operation in the CELL_DCH state behind another residential quarter that moves to except MBMS FA 501 utilizes this redirection information field to carry out residential quarter and chooses residential quarter corresponding to MBMS FA 501, and is professional again to receive this MBMS.
In step 571, the residential quarter that the UE that moves to another residential quarter after being positioned at MBMS FA 501 carries out the MBMS residential quarter reselects. UE analyzes " allowing the residential quarter indication of MBMS " or " allowing the cell information of MBMS " of relevant adjacent MBMS residential quarter by the SIB shown in table 1 or the table 2, and the residential quarter is carried out in the MBMS residential quarter of correspondence reselects.
Fig. 6 is that the number that illustrates the MBMS FA among the FA that overlaps each other in the same area is at least in 2 the situation, is used for reselecting the message flow chart of the process of the professional available residential quarter of MBMS. With reference to figure 6, Reference numeral 601 and 602 represents MBMS FA, and Reference numeral 603 and the non-MBMS FA of 604 representatives. Reference numeral 601,602,603 and 604 represents the FA that overlaps each other and use different frequency in same geographic region. Each FA can comprise one or more residential quarters. For the ease of explaining, will suppose that here each FA has a residential quarter. In the following description, the residential quarter that the FA representative is different, and term " FA " and " residential quarter " are used interchangeably. Reference numeral 611 representatives are used for providing the RNC of MBMS business, and Reference numeral 621 represents SGSN. The system information block (SIB) that Reference numeral 631 representatives send from RNC 611, and SIB 631 has different information in FA 601,602,603 and 604. A kind of for utilizing SIB to the first, second, and third kind of method that is arranged in FA 601,602,603 and provides the method for the information of relevant MBMS FA to adopt Fig. 5 to propose with 604 UE.
According to first method, the SIB that sends to MBMS FA 601 comprises the information as the relevant MBMS FA 602 of the information of relevant neighbor cell, and the SIB that sends to MBMS FA 602 comprises the information as the relevant MBMS FA 601 of the information of relevant neighbor cell. In addition, sending to non-MBMS FA 603 and 604 SIB comprises as the relevant MBMS FA 601 of the information of relevant neighbor cell and 602 information.
As in conjunction with shown in Figure 5, the information that whether can be used for the MBMS business about the information of adjacent MBMS residential quarter and the residential quarter that indicates UE can be analyzed by following steps: check whether the MBMS configuration information is included among another SIB, or whether can be used for the information of MBMS business by the residential quarter that the comparison inspection with SIB 3/4 indicates UE.
According to second method, when using the special-purpose SIB of new MBMS that is used for the MBMS business, UE can analyze the information of relevant neighbor cell and the information of relevant its current area simultaneously.
According to the third method, UE comprises MBMS_Qoffset_s by analyze sending, the MBMS FA 601 of the SIB 11/12 of n value and 602 and definite MBMS residential quarter.
In the adition process of step 641, request MBMS is professional.
In step 651, after step 641 was carried out adition process, the execution residential quarter reselected to the residential quarter corresponding to MBMS FA corresponding to the UE that is in idle pulley in the residential quarter of MBMS FA 603 or 604. In this case, the UE that is in idle pulley has the MBMS FA 601 of the relevant covering the same area that obtains in step 631 and the information of two residential quarters of 602. In situation shown in Figure 5, because only a FA (or residential quarter) can be used for the MBMS business, so when UE moved to MBMS FA in the same area, it is professional that UE can receive the MBMS of expectation. Yet, in situation shown in Figure 6, because there are two MBMS FA, so UE only utilizes the SIB that sends separately for each residential quarter in step 631 to can not determine which MBMS FA provides the MBMS of expectation professional.
So, if FA 601 and 602 provides identical MBMS professional, then select FA 601 or FA 602 in step 651 according to the received power measurement result of UE. That is to say, reselect the residential quarter according to the optimized frequency of UE. Yet, if FA 601 and 602 provides different MBMS professional, UE in step 651 according to the MBMS business of the asking available FA of reselecting whether, rather than according to the professional FA that reselects of the specific MBMS of expectation.
In step 661, the SGSN 621 that recognizes the professional beginning of MBMS will indicate session that the MBMS business is about to begin to begin message and sends to RNC 611. In step 662, receive RNC 611 that this session begins message and the MBMS notification message is sent to begin the MBMS FA of message corresponding to this session in FA 601 and 602. This notification message is not sent to the residential quarter for non-MBMS FA 603 and 604. This notification message comprises corresponding MBMS traffic ID, is used for to counting indicator, the necessary probability factor of RRC attended operation and the relevant information that the MBMS FA of this MBMS business is provided of the necessity of the UE notice RRC connection that is in idle pulley. This MBMS FA information comprises frequency information, residential quarter ID, cell information and the MBMS skew of corresponding FA.
For example, in step 662, if the MBMS business corresponding to notification message is professional corresponding to the MBMS of the FA 601 in MBMS FA 601 and 602, the UE that then is arranged in the FA 602 that receives this notification message reselects the residential quarter of FA 601, to receive the data of MBMS business. That is to say that in step 651, UE selects MBMS FA according to the availability of MBMS business, and in step 662, UE is according to the professional MBMS FA that reselects of the specific MBMS of expectation.
In step 671, be arranged in the UE of idle pulley of FA 602 after receiving this notification message, reselect the residential quarter of FA 601. In this case, the UE that is arranged in the idle pulley of FA 602 must satisfy the received power measurement result relevant with the residential quarter of FA 601. That is to say that if the result that the conduct received power relevant with the residential quarter of FA 601 measured, it is professional that the MBMS that is provided by FA 601 can be provided the UE that is arranged in FA 602, then they reselect the residential quarter of FA 601.
In the situation of step 662 and 671, UE specific MBMS business according to expectation before the session that is used for the MBMS business begins is selected FA. In the situation of step 681, when carrying out the MBMS business, UE is according to the professional FA that selects of the specific MBMS of expectation. In step 681, UE utilizes the system information that receives in step 631 and preferentially reselect the MBMS residential quarter in neighbor cell. Realize that by the received power measurement residential quarter reselects by UE, and UE analyzes the MBMS availability information that receives from selected residential quarter by MCCH.
The MBMS availability information is to indicate whether available information of specific MBMS business that UE expectation receives. So UE determines by analyzing this MBMS availability information whether specific MBMS business is available in the residential quarter that reselects. If determining the residential quarter that reselects is the professional disabled residential quarter of specific MBMS of wherein UE request, then UE utilizes system information to move to another MBMS FA of service the same area. That is to say that UE utilizes system information to reselect residential quarter for another MBMS FA.
The MBMS availability information can comprise also whether the information of the professional available actual MBMS FA of the specific MBMS of relevant UE request and relevant MBMS business can be used for comprising the information of the residential quarter of current UE. That is to say that the MBMS availability information comprises the information of the professional ongoing actual FA of MBMS of relevant wherein UE request.
In other words, the MBMS availability information is included in frequency information, residential quarter ID, P-CPICH information, MBMS offset information of MBMS traffic ID, the residential quarter of ongoing MBMS business in the residential quarter that reselects etc. So, the UE that receives the MBMS availability information by MCCH determines whether specific MBMS business is available in its current area, if and specific MBMS business is unavailable in its current area, then carries out the residential quarter and reselect to the professional available residential quarter of specific MBMS.
Fig. 7 is the message flow chart that is used for providing at least two MBMS FA the process of MBMS business in conjunction with the diagram of process shown in Figure 6. In this case, use the MBMS deviant according to embodiments of the invention, and this process graphical be used for sending the method for information of the professional and relevant corresponding FA that another FA provides and the processing that after session begins, the information of relevant each professional preferred frequency band is sent to UE by MCCH availability message. Here it is professional that at least two FA of hypothesis provide different MBMS, for example business 1 and professional 2.
With reference to figure 7, Reference numeral 701 and 702 representatives receive the UE of MBMS business, and Reference numeral 703 representatives are used for providing the RNC of MBMS business. Here, UE 701 and 702 is positioned at the residential quarter corresponding with frequency band except the preferred frequency band of MBMS business.
In step 711, received RNC 703 that sessions begin message 705 before session begins from SGSN 704, will comprise that the notification message 711 of the necessary information of preferred frequency band that moves to the MBMS business is issued to UE 701 and 702. In this notifier processes, RNC 703 can use the session of current definition to begin message or another single message. RNC 703 comprises its session with the information of the optimized frequency of the MBMS traffic ID of the MBMS business of beginning, relevant MBMS business and is used for reselecting the MBMS offset information of the residential quarter of another frequency of use.
In step 712, the UE 701 of receiving notice message utilizes the optimized frequency of MBMS business to carry out inter-frequency measurements, thereby the residential quarter is reselected to preferred frequency band in conjunction with the MBMS business.
To comprise periodically that in step 713 and 714, RNC 703 message of MBMS traffic ID, preferred frequency information and MBMS offset information sends to UE 701 and 702, to support the mobility of UE. This message can send by MCCH.
The UE 701 and 702 that receives the MBMS business carries out inter-frequency measurements immediately in following situation:
1) before session begins, when the preferred frequency band of the MBMS business of determining by notification message to add was not the frequency band of current area, UE carried out inter-frequency measurements immediately.
2) during session, when UE carry out that the residential quarter reselects and the preferred frequency band of the frequency of the residential quarter determining by the control message that periodically sends to reselect and corresponding MBMS business not simultaneously, UE carries out inter-frequency measurements immediately.
In other words, when the UE of request MBMS business received the notification message 711 of the information of the optimized frequency that comprises relevant MBMS business of transmission before session begins, it carried out inter-frequency measurements.
Replacedly, when the MBMS of MBMS business session is being carried out and the UE that receives the MBMS business when having reselected new residential quarter owing to UE moves, if UE determines that by the control message 713 and 714 that periodically sends the preferred frequency band of MBMS business is different from the frequency of selected residential quarter, then UE should carry out inter-frequency measurements.
When UE 701 or 702 be received in the notification message that session sends before beginning or the control message that during session, sends, and when attempting that the residential quarter reselected to the preferred frequency band of MBMS business, if carry out the residential quarter of another frequency band except the frequency band of supporting the MBMS business reselects owing to the poor radio state of transmission band, then UE rests on current area, rather than the residential quarter of carrying out another frequency band reselects. This is because another frequency band that the residential quarter reselects to except preferred frequency band equates with performance in resting on current area, and causes that another measurement and residential quarter reselect. The UE that rests in the current area is professional by request MBMS, even the MBMS that can receive in the current area is professional.
Even Sx during inter-frequency measurements (representative is by carrying out the value that frequency measurement obtains in the current area that is used for the professional X of specific MBMS) is greater than Sinter (threshold value that representative arranges in order to carry out inter-frequency measurements), the UE that receives the MBMS business in resting on current area also must carry out inter-frequency measurements. Unless this is less than Sinter because of Sx, otherwise reselect failed UE in the residential quarter to preferred frequency band and will not carry out inter-frequency measurements for the residential quarter reselects to for the preferred frequency band of MBMS business, avoid thus the residential quarter to reselect to optimized frequency.
For example, measuring period or forward access channel (FACH) at compact model are measured occasion in the cycle, namely as the cycle of carrying out inter-frequency measurements according to the inter-frequency measurements of the state of UE and pattern appointment in the cycle, UE carries out inter-frequency measurements, and has nothing to do with the value of Sx.
Even Sx＞Sinter, UE also must periodically carry out preferred frequency band for the residential quarter reselects to preferred frequency band and measure. UE not only periodically carries out and measures based on measuring period but also based on predetermined timer value or cycle. This timer value before sent by system information.
So, the inter-frequency measurements of execution cycle property when the residential quarter reselects to UE failed on the preferred frequency band to rest on current area, if and this inter-frequency measurement results satisfies the residential quarter and reselect condition, the residential quarter of then carrying out the preferred frequency band of MBMS business reselects.
The UE that execution reselects to the residential quarter of the preferred frequency band of MBMS business uses the MBMS skew from RNC 703 in step 711,713 and 714. That is to say, the MBMS offset information that is included in the message that sends in the step 711,713 and 714 is provided, with the preferred frequency band of the support MBMS business that priority is better than other frequency bands. By applying MBMS skew to preferred frequency band, the residential quarter at optimized frequency place reselects the residential quarter that probability is higher than other frequency places and reselects probability.
As described in conjunction with formula (3), the Rn value of the residential quarter corresponding with the preferred frequency band of specific MBMS business ratio is corresponding to the large MBMS skew of Rn value of the residential quarter of other frequencies. As a result, there is very high probability in following situation, will have than corresponding to the high priority in the residential quarter of other frequencies (or grade) corresponding to the residential quarter of preferred frequency band. And there is very high probability in following situation, and the residential quarter that the UE of expectation reception MBMS business will carry out preferred frequency band reselects. Although still reselected the residential quarter that is used for other frequency bands if applied the MBMS skew, then UE still rests on current area, does not reselect and do not carry out the residential quarter.
Fig. 8 is the flow chart based on the operation of the UE of the first and second methods that illustrates according to the embodiment of the invention. With reference to figure 8, in step 801, the UE that is in idle pulley is from residential quarter receiving system information that it is currently located at. But this system information comprises about the information of the MBMS FA that overlaps each other at same geographic region and the relevant information that is not positioned at the available neighbor cell of same district MBMS business.
That is to say that UE receives the system information comprise the cell information field that allows MBMS according to the first method, receive the special-purpose SIB of MBMS of new definition according to the second method, or reception comprises MBMS_Qoffset_s, the SIB of n value according to third method.
In step 802, UE determines whether the specific MBMS business of expectation is available in current area. If the specific MBMS business of expectation is available in current area, then UE proceeds to step 821. Yet if the specific MBMS business of expectation is unavailable in current area, UE proceeds to step 811, carries out therein normal operating.
In step 821, UE determines whether the MCCH configuration information is comprised in from the system information that its residential quarter that is currently located at sends. That is to say that according to the first method, UE analyzes the SIB comprise the residential quarter indication that allows MBMS, whether available and whether MBMS is professional available in neighbor cell in current area with definite MBMS business. According to the second method, UE determines based on the cell information field of the permission MBMS among the special-purpose SIB of MBMS and same services district indication field whether the MBMS business is available in current area. According to third method, UE is based on MBMS_Qoffset_s, n value and determine whether the MBMS business is available in current area.
If in the MCCH configuration information that step 821 is identified for the MBMS business is not comprised in from the system information of current area or current area to be not useable for specific MBMS professional, then UE proceeds to step 841. Yet, if step 821 determine during the MCCH configuration information is comprised in from the system information of current area or current area to can be used for specific MBMS professional, UE proceeds to step 831.
In step 831, the MCCH of UE receiving cycle transmission, and according to working by the control message of MCCH transmission. In step 841, UE receives the SIB 11/12 of the information that comprises relevant adjacent MBMS residential quarter, or receives the special-purpose SIB of MBMA of the new definition that comprises the cell information field that allows MBMS, and it indicates the information of relevant neighbor cell and the information of relevant its residential quarter. In addition, UE receives and comprises MBMS_Qoffset_s, the SIB of n value, and it indicates the residential quarter with priority that MBMS business be provided higher than other residential quarters.
In addition, UE considers its mobility and periodically receives the MCCH of the information comprise relevant MBMS FA. This MCCH comprises MBMS traffic ID and preferred frequency information.
In step 842, UE is based on the information of the relevant MBMS FA that receives, and the residential quarter of carrying out MBMS FA or MBMS residential quarter reselects. UE analyze to allow the cell information field of MBMS, and the residential quarter of the Node B of preferentially selecting to belong to identical with the Node B of its residential quarter, namely selects to cover the residential quarter with the regional identical zone of its residential quarter covering. The if there is no relevant information that covers the MBMS residential quarter of same area, then the UE residential quarter of carrying out another neighbor cell reselects. If exist to cover the MBMS residential quarter of same area, but as a result this received power of measuring as the received power that is used for receiving the MBMS business is lower than threshold value, and then the UE residential quarter of carrying out another adjacent MBMS residential quarter reselects. That is to say, must satisfy the received power measurement result to reselecting of all residential quarters. If UE can not carry out the residential quarter of the preferred frequency band of supporting the MBMS business and reselect, the inter-frequency measurements of its execution cycle property when resting on current area then reselects satisfying the residential quarter of carrying out preferred frequency band when the residential quarter reselects condition thus.
Fig. 9 is the flow chart based on the operation of the UE of third method that illustrates according to the embodiment of the invention. With reference to figure 9, in step 901, UE begins message by notification message or in the message of session period transmission and receive session, or receives the information that is used for FLC (frequency layer convergence), i.e. traffic ID, frequency/cell information and MBMS offset information. In step 902, UE checks the traffic ID in the FLC information, and is professional to determine the MBMS business MBMS whether UE adds in the session in the residential quarter.
If determine that in step 902 ongoing MBMS business is the MBMS business that UE adds, then UE checks in step 911 whether frequency information/cell information is identical with the cell information of current area. Yet if determine that in step 902 ongoing MBMS business is not the MBMS business that UE adds, if perhaps determine that in step 911 frequency information/cell information is identical with the cell information of current area, UE proceeds to step 912. In step 912, UE rests in the current area, and the residential quarter that need not carry out the MBMS business reselects.
Yet if determine that in step 911 frequency information/cell information is not identical with the cell information of current area, whether UE exists any residential quarter that will measure for the residential quarter reselects step 921 inspection. That is to say that UE determines whether there is reply in step 921 according to frequency information/cell information, and it carries out any residential quarter of measuring. If determine the residential quarter that existence will be measured in step 921, then UE carries out in step 922 pair respective cell and measures.
In step 931, UE checks whether the measurement result of step 922 satisfies the S standard. If this measurement result satisfies the S standard, then UE is at the R normalized form of the correction of step 932 by using the use MBMS skew that proposes in the present invention, and sorted in the residential quarter that is used for the priority list that the residential quarter reselects. Then this processing turns back to step 921.
Yet it carries out the residential quarter of measuring if determine there is not reply in step 921 according to frequency information/cell information, and whether UE exists any residential quarter of satisfying the S standard step 941 inspection. If there is the residential quarter satisfy the S standard, then UE selects to have the residential quarter (or residential quarter of highest ranking) of limit priority in step 942 from the priority list that is used for the residential quarter and reselects. In step 951, UE checks that whether the residential quarter of this highest ranking is corresponding to the frequency information/cell information that receives in step 901.
If the residential quarter of this highest ranking is corresponding to the frequency information/cell information that receives in step 901, then UE checks in step 961 whether this residential quarter is subject to the restriction in the system information of step 942 reception when stopping (camping) in current area. If determine that in step 961 this residential quarter is not subject to the restriction of system information, then UE reselects the residential quarter of highest ranking in step 962. This system information can be PLMN (public-land mobile network) ID, forbidding LA (this area) or cell status. Yet, if determine that in step 961 this residential quarter is subject to the restriction of system information, if determine that in step 951 this highest ranking residential quarter does not correspond to this frequency information/cell information, if perhaps determine not exist the residential quarter of satisfying the S standard in step 941, then UE rests in the current area, and the residential quarter that needn't carry out for the MBMS business reselects.
Be appreciated that from the above description, when residential quarter that the specific cluster data service can be used and the disabled residential quarter of this Packet data service are overlapping in the same area, the present invention with this Packet data service can with the radio resource information of residential quarter send to the UE that is arranged in this disabled residential quarter of Packet data service, this Packet data service is provided thus effectively. In addition, the present invention will send to UE about the information of neighbor cell and the information of relevant Serving cell, and the mobility and the efficient cell that are conducive to thus UE are selected.
Although illustrate and described the present invention with reference to its certain preferred embodiment, but those of ordinary skills should understand in the situation of the spirit and scope of the present invention that do not break away from the claims restriction, can carry out the various changes of form and details here.

Claims (40)

1. one kind is used for having different frequency at the same area and distributes in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) and select the residential quarter to receive the method for MBMS business by subscriber equipment (UE), and the method comprising the steps of:
By radio network controller (RNC) information of relevant MBMS residential quarter is sent to UE, this MBMS cell information comprises the MBMS skew of the priority that reselects be used to the residential quarter that controls to the MBMS residential quarter; With
Utilize this MBMS cell information and carry out the residential quarter and reselect by UE, and it is professional to receive MBMS from the residential quarter that reselects.
2. according to claim 1 method, wherein this MBMS cell information also comprises the frequency information of MBMS residential quarter.
3. according to claim 1 method, wherein this MBMS cell information also comprises the cell identifier (ID) for sign MBMS residential quarter and Target cell.
4. according to claim 1 method, wherein this UE is by being applied to the MBMS skew for the residential quarter reselects predefined formula, and reselects the residential quarter.
5. according to claim 1 method, wherein this MBMS cell information also is included in the MBMS traffic ID of MBMS business available in the MBMS residential quarter.
6. according to claim 1 method, wherein this RNC sends this MBMS cell information by the system information block (SIB) that sends separately for each residential quarter.
7. according to claim 1 method, wherein this RNC sends separately the MBMS cell information for each residential quarter by the special-purpose SIB of MBMS.
8. according to claim 7 method, wherein the special-purpose SIB of this MBMS also comprises the information whether Serving cell that UE is positioned at can be used for the MBMS business that indicates.
9. according to claim 1 method, wherein this UE utilizes the MBMS skew and the residential quarter of carrying out to the neighbor cell with limit priority reselects.
10. one kind is used for having different frequency at the same area and distributes the method that reselects in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) for the residential quarter of MBMS business, and the method comprising the steps of:
By radio network controller (RNC) system information block (SIB) is sent to subscriber equipment (UE), this SIB comprises and indicates the identification information whether neighbor cell can be used for this MBMS business; With
Utilize this SIB and the residential quarter of carrying out the MBMS residential quarter reselects by UE.
11. method according to claim 10, wherein this identification information comprise the MBMS residential quarter cell identifier (ID), indicate the FA of MBMS residential quarter frequency information, indicate for the cell information of the main scrambler of the Primary Common Pilot Channel (P-CPICH) of MBMS residential quarter and be used for guaranteeing the skew of the priority that the residential quarter reselects.
12. method according to claim 10, wherein this identification information is sent to separately each residential quarter by BCCH (BCCH).
13. method according to claim 10, wherein after adding this MBMS business, the residential quarter that this UE carries out the MBMS residential quarter reselects.
14. one kind is used for having different frequency at the same area and distributes the method that reselects in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) for the residential quarter of MBMS business, the method comprising the steps of:
To indicate the identification information whether neighbor cell can be used for the MBMS business by control message by radio network controller (RNC) and periodically send to subscriber equipment (UE); With
The residential quarter that utilizes the identification information that receives by control message to carry out the MBMS residential quarter by UE reselects.
15. method according to claim 14, wherein this identification information comprise the MBMS residential quarter cell identifier (ID), indicate the FA of MBMS residential quarter frequency information, indicate for the cell information of the main scrambler of the Primary Common Pilot Channel (P-CPICH) of MBMS residential quarter and be used for the skew of the priority that the control residential quarter reselects.
16. method according to claim 14, wherein this identification information is sent separately for each MBMS is professional by MBMS control channel (MCCH).
17. one kind is used for having different frequency at the same area and distributes in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) by subscriber equipment (UE) and carry out the method that the residential quarter of preferred frequency band reselects, the method comprising the steps of:
Receive the information of the optimized frequency comprise MBMS task identifier (ID), relevant MBMS business and be used for the message that MBMS that the control residential quarter reselects is offset from radio network controller;
Utilize the information that comprises in this message and carry out inter-frequency measurements; With
If be used for the received power height that the received power ratio of the preferred frequency band of MBMS residential quarter is used for the frequency band of current area, then carry out the residential quarter and reselect.
18. method according to claim 17, wherein UE receives the notification message be included in the information that the MBMS session sends before beginning, carry out inter-frequency measurements based on this notification message, if and the received power of preferred frequency band that is used for the MBMS residential quarter is higher than the received power of the frequency band that is used for current area, the residential quarter of then carrying out this preferred frequency band reselects.
19. method according to claim 17, wherein this UE periodically receives and comprises that session begins the control message of information afterwards, carry out inter-frequency measurements based on this control message, if and the received power of preferred frequency band that is used for the MBMS residential quarter is higher than the received power of the frequency band that is used for current area, the residential quarter of then carrying out this preferred frequency band reselects.
20. method according to claim 17, wherein when the MBMS session well afoot that is used for the MBMS business and UE have selected new residential quarter, the notification message of UE receiving cycle transmission is also carried out inter-frequency measurements based on this notification message.
21. method according to claim 20, if the frequency band of wherein determining the residential quarter reselect according to this notification message corresponding to preferred frequency band, then UE carries out the residential quarter and reselects.
22. method according to claim 20, if wherein determine that according to this notification message the frequency band of the residential quarter reselect does not correspond to preferred frequency band, then UE rests in the current area and to receive MBMS from current area professional.
23. one kind is used for having different frequency at same geographic region and distributes in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) by radio network controller (RNC) and provide the method for MBMS business to the subscriber equipment that is arranged in non-MBMS FA (UE), the method comprising the steps of:
By RNC the system information block (SIB) that comprises the information of relevant MBMS FA is sent to UE; With
With comprise relevant MBMS FA information message cycle send to UE.
24. method according to claim 23, wherein the information about MBMS FA comprises the MBMS task identifier (ID) for the MBMS business, the frequency information of MBMS FA, the residential quarter ID of FA and the MBMS skew that reselects for the control residential quarter.
25. one kind is used for having different frequency at same geographic region and distributes the method that is received the MBMS business in the GSM of support multimedia broadcast/group broadcast service (MBMS) of (FA) by the subscriber equipment that is arranged in non-MBMS FA (UE), the method comprising the steps of:
Receive the system information block (SIB) of the information that comprises relevant MBMS FA from radio network controller (RNC);
Analyze the information of the relevant MBMS FA among the SIB; With
The residential quarter of carrying out MBMS FA based on this analysis result reselects.
26. method according to claim 25, wherein this SIB comprises also whether FA that relevant UE is positioned at can be used for the information of MBMS business.
27. one kind is used for having different frequency at the same area and distributes the support multimedia broadcast/group broadcast service (MBMS) of (FA) and comprise the method that is received the MBMS business in the GSM of at least one non-MBMS residential quarter by the subscriber equipment that is arranged in non-MBMS FA (UE), the method comprising the steps of:
Received the information of relevant MBMS residential quarter from radio network controller (RNC) by UE;
Ask specific MBMS professional by UE;
Analyze the information that receives; With
Based on this by analysis information and reselect the professional available residential quarter of specific MBMS.
28. method according to claim 27, the information that wherein receives comprise the information about the available neighbor cell of the system information of the professional disabled specific cell of specific MBMS and relevant MBMS business.
29. comprising, method according to claim 27, the information that wherein receives indicate frequency information, cell identifier (ID), cell information and the skew that the professional available neighbor cell of information, MBMS that whether residential quarter that UE is arranged in can be used for the MBMS business uses.
30. method according to claim 27, the information that wherein receives sends separately for each residential quarter by system information block (SIB).
31. method according to claim 27, the information that wherein receives are to send separately for each MBMS is professional by the control information with the periodicity transmission of MBMS business association ground.
32. method according to claim 27, the information that wherein receives comprise whether indicate the residential quarter that UE is positioned at can be used for the information of specific MBMS business and indicate the information whether professional available neighbor cell of MBMS can be used for this specific MBMS.
33. method according to claim 28, wherein this UE measures the received power of neighbor cell, if and had professional at least one the available neighbor cell of this specific MBMS, the professional available neighbor cell of MBMS of asking would then be selected based on this analysis result.
34. one kind is used for having the support multimedia broadcast/group broadcast service (MBMS) of different frequency and comprising professional disabled at least one residential quarter of MBMS and provide in the GSM of other residential quarters of MBMS business by radio network controller (RNC) and provide the method for MBMS business to the subscriber equipment (UE) that is arranged in the professional disabled residential quarter of MBMS that the method comprising the steps of at the same area:
Send the system information block (SIB) that is used for the MBMS business to UE by RNC;
In case receive the request for specific MBMS business, just reselect the professional available residential quarter of specific MBMS by UE; With
Divide to UE and to be used in the radio resource that this specific MBMS business is provided.
35. method according to claim 34, the wherein information of the available neighbor cell of this SIB system information of comprising the professional disabled residential quarter of specific MBMS and relevant MBMS business.
36. method according to claim 35, wherein the information about neighbor cell is included in frequency information, cell identifier (ID), cell information and the skew of using in the neighbor cell.
37. method according to claim 35, wherein this cell information comprises the information whether professional available neighbor cell of MBMS can be used for this specific MBMS business that indicates.
38. method according to claim 35, wherein this cell information also comprises the information whether residential quarter that UE is positioned at can be used for this specific MBMS business that indicates.
39. method according to claim 37, wherein indicating the information whether professional available neighbor cell of this MBMS can be used for this specific MBMS business is to send by the cell information field that allows MBMS.
40. method according to claim 37 wherein indicates the information whether professional available neighbor cell of this MBMS can be used for this specific MBMS business and sends by the MBMS offset field.
CN2004800234831A 2003-08-22 2004-08-20 Method for re-selecting a cell for receiving packet data in a mobile communication system providing a multimedia broadcast/multicast service Active CN1836387B (en)

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