CN101199228A - System and method for providing broadcast service in a mobile communication system - Google Patents

Abstract

Disclosed is a broadcast service connection setup method for receiving a Multicast and Broadcast Service (MBS) by a mobile station (MS) in a mobile communication system supporting the MBS. The MS sends a connection setup request for a particular broadcast service to a base station (BS). The MS receives from the BS a first identifier mapped to the particular broadcast service and second identifiers individually mapped to at least one content broadcast.

Description

Be used for providing the system and method for broadcast service in mobile communication system

Technical field

The present invention relates generally to the broadcast service in the mobile communication system, and more specifically, relate to the system and method that is used for broadcast service is offered a plurality of mobile radio stations.

Background technology

(Quality-of-Services, service QoS) is about the research well afoot of the 4th generation (4G) mobile communication system to have multiple service quality for the data rate with about 100Mbps provides to the user.Present the 3rd generation (3G) communication system is supported the data rate of about 384Kbps in having the outdoor channel circumstance of bad channel condition, and supports the data rate of about 2Mbps in having the indoor channel environment of good channel conditions.

The 4G communication system is broadband wireless access (BWA) communication system, and the BWA communication system is developing into the multimedia broadcasting/communication system that can send multimedia service gradually.In order to support multimedia broadcasting/communication, base station (BS) is with one or more multi-medium data resource multicast (multicast) and be broadcast to a plurality of mobile radio stations (MS).Be used for providing the multicast of broadcast service and broadcast service to be called as " multicast and broadcast service (Multicast and Broadcast Service, MBS) " in the BWA communication system.Just, " MBS " is the meaning first-class being same as " broadcast service ".

The transmission of the multimedia messages that MBS support such as real-time video and audio frequency, static video and text message are such, and can on broadcast channel, be provided for video data and the voice data that multimedia sends simultaneously.

Fig. 1 be schematically illustrate in general mobile communication system, the schematic diagram of the MBS system configuration in the BWA communication system particularly.

With reference to Fig. 1, a plurality of sub-districts can be contained in the logical groups, and this logical groups is used for defining the broadcast service zone according to its geographical position.This logical groups is called as " MBS area (zone) ".Just, sub-district 101,103,105,107,109 and 111 constitutes a MBS area and has the identifier ' 1 ' that is used for MBS ground tape identification (identification), and sub-district 131,133,135,137,139,141 and 143 constitutes another MBS area and has MBS area identifier ' 2 '.

The BS that comprised in each MBS area uses identical frequency band to the MS identical broadcast data of multicast/broadcast simultaneously, and the MS that is arranged in each MBS area receives this broadcasting in an identical manner.Be used to manage the server in MBS area, such as, MBS server (not shown) is complementary with this MBS area on man-to-man basis, and the tabulation of management broadcast service.

For example, at first be received in first broadcast service in the sub-district 109 that has MBS area identifier ' 1 ' for MS 170, should be connected foundation with the MBS that the BS 109 of sub-district carries out terms first broadcast service.(Dynamic ServiceAddition_REQuest, DSA_REQ) (DSA_ReSPonse, DSA_RSP) message realizes that MBS connects foundation with the DSA response by asking with BS 109 exchange dynamic Service increases by MS 170.When after MS 170 finishes the MBS connection foundation that is used for first broadcast service, moving to other BS in same MBS area, do not need to re-execute the MBS connection foundation that (re-perform) is used for first broadcast service.This is because the broadcast service that is provided in same MBS area has identical connection identifier (CID (CID) and identical frame structure.

Suppose that MS 170 moves to another sub-district 133 with different MBS area identifier from current area 109.In each MBS area, in zone with MBS area identifier ' 1 ' with the zone with MBS area identifier ' 2 ' in the CID of first broadcast service that provided publicly have different values.In addition, in each MBS area, frame structure is also different.Therefore, when moving to another sub-district with different MBS area identifier, MS 170 must re-execute MBS and connect foundation.

MBS connect to set up number that the number of times that should be performed and MS 170 want the broadcast service that receives as many.In other words, in order to receive second broadcast service after finishing the connection foundation that is used for first broadcast service, MS 170 should re-execute the connection that is used for second broadcast service and set up.

According to (in light of) MBS area, can carry out following classification to broadcast service:

-many BS broadcast service: many BS broadcast service is meant performed broadcast service in comprising the MBS area of a plurality of BS.In this case, for the broadcast service in the MBS area, identical broadcast is arranged in the identical district of the frequency-time-domain (frequency-time) of descending chain circuit frame/send in this identical district, described descending chain circuit frame (downlink frames) is sent by all BS in this MBS area, and multicast CID is also distributed identical value, this multicast CID is used for the connection of each broadcast service, and for example MBS connects.Just, this means that all BS in the MBS area provide identical broadcast service in an identical manner.For example, for the CID B that distributes to by the broadcast service A of a BS multicast, broadcast service A even may reside among the 2nd BS in the same MBS area, and the CID that is assigned to this broadcast service equals employed CID B in a BS.

In addition, in descending chain circuit frame district, have identical position, identical size and identical time band (so that grand diversity effect of the physics of picked up signal (physical macro diversity effect)) in the MBS area of the descending chain circuit frame of the real data that is used for sending broadcast service A from all BS.

-single BS broadcast service: be different from many BS broadcast service, single BS broadcast service is meant only available broadcast service in a BS.The form with focus (hot spot) that this means provides broadcast service in a BS.Be different from the CID in many BS broadcast service, the CID that distributes to this broadcast service distributes by one in the transmission CID that manages in a BS (Transport CID) scope.The multicast CID that is different from many BS broadcast service, described transmission CID only is unique in corresponding BS.

Following table 1 shows and is used for the CID that MBS connects.

Table 1

CID	Value (16 system)	Describe
			Initial ranging (ranging)	0000	During handling, uses initial ranging by SS and BS.
Basic CID	0001-m	Identical value is assigned to whole DL and is connected the two with UL.
			Main management	M+1-2m	Identical value is assigned to whole DL and is connected the two with UL.
Transmit CID, less important Mgt CID	2m+1-FE9F	Be used for secondary management and connect, identical value is assigned to whole DL and is connected the two with UL.
			Multicast CID	FEA0-FEFE	Be used for down link multicast service, identical value is assigned to participation All MSS on the same channel of this connection.
AAS initial ranging CID	FEFF	When being adaptive antenna system (AAS) devices allocation initial ranging during the cycle, support the BS of AAS will use this CID.
			Multicast poll CID	FF00-FFFA	In order to obtain the purpose of bandwidth via poll, BS can be contained in one or more multicast poll group.These connections do not have the service flow (service flow) that is associated.
The normal mode multicast CID	FFFB	Be used among the DL-MAP, be used for broadcast message DL with expression Send to the burst (burst) of normal mode MS.
			The sleep pattern multicast CID	FFFC	Be used among the DL-MAP, be used for broadcast message DL with expression Send to the burst of sleep pattern MS.
The idle pulley multicast CID	FFFD	Be used among the DL-MAP, be used for broadcast message DL with expression Send to the burst of idle pulley MS.

Fill (padding) CID	FFFE	Be used for sending filling information by SS and BS.
			Broadcasting CID	FFFF	Be used on down link the broadcast message that sends to all MS.

CID shown in the table 1 has following purposes and function:

-initial ranging CID: this is to be used for distance measurement request (Ranging Request, RNG_REQ) CID of message to the BS transmission that will distribute main (Primary) CID and basic (Basic) CID by MS (perhaps subscriber station (SS)).All MS should know the CID value of initial ranging CID

‘0x0000’。MS is consulting to utilize its medium access control of this BS of RNG_REQ message informing (Medium Access Control, MAC) address during (negotiation) handles with BS.Thereby BS is mapped to the CID of instruct MS with the MAC Address of MS,, mainly manages CID and basic CID that is.

-mainly manage CID: this is the CID that is used to handle the MAC administrative messag of the essential operation of carrying out between MS and BS, and mainly manages CID and be used to identify MS.As shown in table 1, a BS can manage and identify (identify) m MS.MS discerns (recognize) by reception ranging response (RNG_RSP) message and mainly manages CID.

-basic CID: this is the CID that is used to handle the MAC administrative messag of the operation of carrying out alternatively between MS and BS, and basic CID also is used to identify MS.As shown in table 1, the quantity of basic CID is m, equates with the quantity of main management CID.The same with main management CID, MS discerns basic CID by receiving RNG_RSP message.

-broadcasting CID: this is meant the CID of the message that all MS receive and handle, and has the CID value ' 0xFFFF ' that all MS discern in advance.

-multicast poll CID: this is the CID that is distributed or separated distribution (de-allocate) by multicast poll request for allocation (MCA_REQ) message, and this CID is used during the multicast poll services.

-transmission CID, secondary management CID: transmitting CID is the CID that is used for the transmission/reception of general (general) data traffic, and be contained in the DSA_RSP message, this DSA_RSP message is in response to (BS-Initiated) DSA_REQ message of being initiated by BS and (MS-Initiated) DSA_REQ message of being initiated by MS and receiving from BS.Secondary management CID is meant and is used for sending agreement (Simple Network ManagementProtocol/Trivial File Transfer Protocol such as Simple Network Management Protocol/ordinary file, SNMP/TFTP) management on such upper strata connects CID, and is contained in the registration response (Registration Response) (REG_RSP) within the message that will distribute to MS.The quantity that transmits CID and secondary management CID is in the scope of 2m+1～0xFE9F.

-AAS initial ranging CID: this is needed CID when carrying out initial ranging in adaptive antenna system (AAS).

-normal mode multicast CID: this be only indicate by not under sleep pattern or idle pulley, the CID of the MS of normal running after the network registration process of finishing with the BS multicast message that receives and handle, and this CID has the known CID value ' 0xFFFB ' of all MS.

-sleep pattern multicast CID: this is the CID that only indicates the multicast message of being handled by MS under sleep pattern, and this CID has the known CID value ' 0xFFFC ' of all MS.

-idle pulley multicast CID: this is the CID that only indicates the multicast message of being handled by MS under idle pulley, and this CID has the known CID value ' 0xFFFD ' of all MS.

-fill CID: this is meant the CID of puppet (dummy) message that sends in reservation (reserved) (burst (the burst)) district that is shown in the uplink/downlink frame, and this CID has the known CID value ' 0xFFFE ' of all MS.

-multicast CID: this is the CID that is used for multicast and broadcast message.Just, this is to be used to distinguish with the MBS of BS be connected the CID that is connected with other.The broadcast service that is provided in same MBS area has identical multicast CID.For example, if at the BS in MBS area A ' 0xFFA0 ' is assigned as the multicast CID that is used for specific MBS service, then other BS in same MBS area also should be assigned as ' 0xFFA0 ' the multicast CID that is used for this specific MBS service.Here, the total quantity of multicast CID is 95.

Usually, CID has the size of 16bit, and uses in the header of mac frame with the sign connection.Replacedly, this CID can use in MAC service data unit (SDU), just as the CID in the traffic indication message (traffic indication message).

Fig. 2 is signaling (signaling) figure that is illustrated in the broadcast service connection procedure (procedure) in the traditional B WA communication system.

With reference to Fig. 2, in step 202, MS 200 search can be via the broadcast service of BS 250 receptions to detect from the broadcast service tabulation of MBS server 280 broadcasting.This broadcast service tabulation comprises the information of the broadcast service that can receive about MS 200.

In step 211, MS 200 sends to BS 250 with DSA_REQ message and connects to set up MBS.The form of DSA_REQ message is shown in following table 2.

Table 2

Grammer	Size	Note
			DSA-REQ_Message_Format(){
Management Mes sage Type＝11	8bits	TBD
			Transaction ID	16bits	By this mutual unique identifier that is used for that transmit leg distributed
TLV Encoded Information	Variable	Specific TLV
			}

In DSA_REQ message, transaction id field (field) indication is used to identify the particular value of the DSx_xxx message of transmission/reception when MS carries out the several times processing relevant with dynamic Service.Comprise optional information in TLV (type) the coded message field.The information that for example, can comprise the broadcast service of being asked in the TLV coded message field about MS 200.

Here, it is that request MBS connects or the information that general service connects is included in the TLV coded message field that MS 200 will indicate it, and TLV coded message field is sent to BS 250 together with DSA_REQ message.This indication information is shown in following table 3.

Table 3

Type	Length	Value	Action scope (scope)
				[145/146].4	1	0: no available MBS 1: the MBS 2 of single BS: the MBS of many BS	DSx-REQ DSx-RSP DSx-ACK

As shown in table 3, when the value of receiving was ' 0 ' DSA_REQ message, what BS 250 identified MS 200 requests was that general service connects but not the MBS connection.In the value of receiving when being ' 1 ' (single BS broadcast service) or value for the DSA_REQ message of ' 2 ' (many BS broadcast service), BS 250 identifies MS 200 requests and connects to set up and receive broadcast service.Replacedly, DSA_REQ message can send to MS 200 from BS 250.In other words, in order to connect foundation, MS 200 can send DSA_REQ message to BS 250, and perhaps BS 250 can send DSA_REQ message to MS 200.When BS 250 sends DSA_REQ message to MS 200, the DSA_REQ message that is sent by BS 250 will be used for the qos parameter of respective broadcast service and broadcast service ID (promptly in the TLV coded format that be comprised in the DSA_RSP message, multicast CID or transmission CID) be included in wherein, this will be described with reference to table 7 below.Though BS 250 can send to MS 200 with the request of single BS broadcast service or many BS broadcast service, will suppose that here MS 200 sends to BS 250 with the request of single BS broadcast service or many BS broadcast service.

Therefore, in step 213, (Dynamic ServiceX_ReceiVeD, DSX_RVD) message sends to MS 200 to BS 250 with dynamic Service X_ReceiVeD.This DSX_RVD message is to be used for notifying the MS 200 relevant BS 250 normal DSA of reception relevant message, DSA_REQ message for example, and handling the message that is received.

Table 4

Grammer	Size	Note
			DSX-RVD_Message_Format(){
Management Mes sage Type＝30	8bits	TBD
			Transaction ID	16bits
Confirmation Code	8bits
			}

In table 4, when transaction id used in the DSA_REQ message employed value, it was response to DSA_REQ message that MS 200 can identify DSX_RVD message.

Afterwards, in step 215, BS 250 sends the DSA_RSP message shown in the following table 5 in response to the broadcast service connection request from MS 200.

Table 5

Grammer	Size	Note
			DSA-RSP_Message_Format(){
Management Message Type＝1 2	8bits	TBD
			Transaction ID	16bits
Confirmation Code	8bits
			TLV Encoded Information	Variable	TLV specific

}

In table 5, (Confirmation Code CC) has the form shown in the following table 6 to confirmation code, and comprises the response message to DSA_REQ message.

Table 6

CC	State
		0	The OK/ success
1	Refusal-other
		2	Refusal-Unidentified configuration setting
3	Refusal-interim/refusal-resource
		4	Refusal-permanent/refusal-management (admin)
5	Refusal-nonowners
		6	Refuse-do not find service flow
7	Refusal-service flow exists
		8	Refuse-do not have parameters needed
9	Refusal-header suppresses
		10	Refusal-unknown transaction id
11	Refusal-authentication (authentication) failure
		12	Refusal-interpolation cancellation
13	Refusal-surpass dynamic Service to limit
		14	Refuse-be not used in the mandate of the SAID that is asked
15	The SA failure that refusal-foundation is asked

In table 6, BS 250 sends the DSA_RSP message that has confirmation code (CC)=' 0 ' (OK/ success) and responds as the affirmation to DSA_REQ message.In the case, DSA_RSP message is included in qos parameter that is used for the respective broadcast service in the TLV coded format shown in the following table 7 and broadcast service identifier (that is, multicast CID or transmission CID) wherein.Other code value except code value ' 0 ' is not directly related with the present invention, thereby omits the description to it here.

Table 7

Type	Length	Value	Action scope
				[145/146].2	2	CID	DSx-REQ DSx-RSP DSx-ACK

If MS 200 sends the DSA_REQ message that is used for general connection request, then the CID of table 7 is used for and the corresponding CID of this general connection request.

In step 217, when receiving DSA_RSP message, BS 250 is arrived in the DSA affirmation (Acknowledgement) shown in the MS 200 transmission tables 8 (DSA_ACK) message.

Table 8

Grammer	Size	Note
			DSA-ACK_Message_Format(){
Management Mes sage Type＝13	8bit	TBD
			Transaction ID	16bit
Confirmation Code	8bit
			TLV Encoded Information	Variable	TLV specific
}

Up to step 217, after being assigned with the CID that is used for a broadcast service, MS 200 execution in step 219 to 225 or step 227 are to 239, so that be allocated for the CID of other broadcast service.

Can recognize that from the foregoing description a process (procedure) has only been set up a broadcast service and connected, MS sends DSA_REQ message to BS in this process, and BS sends DSA_RSP message to MS in response to this.In other words, connect in order to set up a plurality of broadcast service, MS sends DSA_REQ message many times.When receiving DSA_REQ message from MS, BS must send DSA_RSP message to MS in response to each DSA_REQ message.

Fig. 3 is for schematically illustrating the diagram of the general downlink frame structure that comprises MBS area information.

With reference to Fig. 3, descending chain circuit frame comprises preamble zone (preamble region) 301, down link MAP (DL-MAP) district 303 and the relevant district 305,307,309,311,313 and 315 of MBS.Preamble zone 301 is used for sending the synchronizing signal that is used to obtain the mutually synchronization mutually (mutualsynchronization) between BS and MS, that is, and and preamble sequence.DL-MAP district 303 is used for sending DL-MAP message, and comprises MBS-MAP information element (IE) district 305 when MBS is provided.MBS-MAP IE district 305 comprises and is used to decode the required information of MBS field.Following table 9 shows the form in MBS-MAP IE district 305.

Table 9

Grammer	Size (bits)	Note
			MBS_MAP_IE(){
Extended DIUC	4	MBS_MAP＝0x0A
			Length	4
MBS Zone Identifier	7	MBS area identifier is corresponding at the initial identifier that provides of connection with BS
			Macro diversity enhanced	1	The non-grand diversity of 0=strengthens the grand diversity of area 1=and strengthens the area
If (Macro diversity enhanced＝1){
			Permutation	2	The displacement of the optional FUSC displacement of 0b00=PUSC displacement (permutation) 0b01=FUSC displacement 0b10=0b11=adjacent sub-carriers
Idcell	6
			}
OFDMA symbol offset	7	OFDMA symbol offset for the beginning in MBS district
			DIUC change indication	1	Be used for indication and include the DIUC variation
If ( DIUC change indication＝1){
			Reserved	1
Boosting	3
			DIUC	4
No.subchannels	6
			No.OFDMA symbols	2
Repetition coding	2	0b00=does not have repeated encoding

Indication		The repeated encoding that the repeated encoding that the repeated encoding of 0b01=2 is used 0b10=4 is used 0b11=6 is used
			Else{
DIUC	4
			CID	12	12 LSB of CID
OFDMA symbol offset	8	The skew of the OFDMA code element of burst beginning therein, the starting point of the descending chain circuit frame that is sent out therein from DL-MAP in the OFDMA code element is measured this skew.
			Subchannel offset	6	Be used to carry the minimum index OFDMA subchannel of (carry) burst, from subchannel 0.
Boosting	3
			SLC_3_Indication	1	Be used to notify sleep pattern class 3 to be used to single BS MBS service
No.OFDMA symbols	6
			No.subchannels	6
Repetition coding indication	2	The repeated encoding that the repeated encoding that the repeated encoding that 0b00=does not have a repeated encoding 0b01=2 is used 0b10=4 is used 0b11=6 is used
			If (SLC_3_Indication=0)
Next MBS frame offset	8	Next MBS frame offset value is than the low 8bits of frame number, and BS will send next MBS frame therein.
			Nest MBS OFDMA symbol offset	8	The skew of the OFDMA code element that next MBS area starts therein is in the OFDMA code element, from this skew of point measurement of the descending chain circuit frame that sends MBS-MAP therein.
}
			}
(byte boundary) {
			Padding nibble	Variable	Filling is to reach byte boundary (byte boundary)
}
			}

In table 9, MBS area identifier has been indicated the identifier in corresponding MBS area, and the start offset of OFDMA symbol offset indication MBS-MAP message in the MBS field.In table 9, the information after DIUC changes indication of following has been indicated the size information of MBS-MAP message in the MBS field and the essential information of the MBS-MAP message that is used to decode.

The MBS field by the MBS-MAP message 307 that comprises MBS_Data_IE 309 and the field 311,313 and 315 that is used to send the MBS data burst form.

MBS-MAP message 307 comprises the MS that receives the MBS service and receives the positional information of MBS data burst, and the necessary information of this data burst that is used to decode.The form of MBS-MAP message has been shown in the following table 10.

Table 10

Grammer	Size (bits)	Note
			MBS-MAP Message format ()
MAC Generic Header	48	6 bytes
			Management message type=62	4
Frame number	4	This frame number is identical with frame number among the DL_MAP.
			MBS_DIUC_Change_Count	8
#MBS_DATA_IE	4	The quantity of the MBS_DATA_IE that is comprised
			For (i=0; I＜n; I++)		N=#MBS_DATA_IE
MBS_DATA_IE	Variable
			}
#MBS_DATA_Time_Diversity_IE	4	The quantity of the MBS_DATA_Time_Diversity_IE that is comprised
			For (i=0; I＜m; I++)		M=#MBS_DATA_Time_Diversity_IE
MBS_DATA_Time_Diversity_IE	Variable
			}
If (! Byte boundary)
			Padding nibble	8
}
			TLV encoding element
}

In table 10, MBS-MAP message also comprises a plurality of IE except 6 byte MAC Generic Header.Just, MBS-MAP message comprises ' Management message type ', ' Frame number ' and the MBS data burst information that indication sends the type of message.Described frame number equals the frame number of DL_MAP, and ' whether MBS_DIUC Change Count ' the current MBS data burst profile of indication (profile) is identical with previous MBS data burst profile.If the value of MBS_DIUC change count changes, then MS must receive with the TLV form and be included in downlink burst profile information in the MBS-MAP message.If do not comprise the downlink burst profile information in the MBS-MAP message, then MS can come receiving downlink burst profile information by DCD message sink next time.The MBS data burst information that MBS_DATA_IE and MBS_DATA_Time_Diversity_IE instruct MS will receive.Just, the MBS_DATA_IE indication is about being used to send the field 311,313 of MBS data burst and 315 information.MBS_DATA_Time_Diversity_IE is similar to MBS_DATA_IE 309, and be used to support mixed automatic retransmission request (Hybrid-Automatic Repeat request when existing, H-ARQ) during the MBS data of the MS of scheme, it comprises MBS data burst information.

The form of MBS_DATA_IE 309 has been shown in the following table 11.

Table 11

Grammer	Size (bits)	Note
			MBS_DATA_E{
MBS_MAP_Type=0	4	MBS_DATA_IE
			Next MBS MAP change indication	1	Indication is used for big young pathbreaker the varying in size of MBS-MAP message therewith of the MBS-MAP message these multicasts CID, next MBS frame of this IE.
No.of Multicast CID	3
			For (i=0; I＜No. of Multicast CIDs; I++)
Multicast CID	12	12 LSB that are used for the CID of multicast
			}
MBS DIUC	4
			OFDMA symbol offset	8	OFDMA symbol offset for MBS beginning partly
Subchannel offset	6	OFDMA subchannel for MBS beginning partly is inclined to one side

		Move
			Boosting	3
No.OFDMA symbols	7	The size of MBS data
			No.subchannels	6
Repetition coding indication	2	The repeated encoding that the repeated encoding that the repeated encoding that 0b00=does not have a repeated encoding 0b01=2 is used 0b10=4 is used 0b11=6 is used
			Next MBS frame offset	8	Next MBS frame offset value is than the low 8bits of frame number, and BS will send next MBS frame therein.
Next MBS OFDMA symbol offset	8	The skew of the OFDMA code element of beginning therein of next MBS part is in the OFDMA code element, from this skew of point measurement of the descending chain circuit frame that sends MBS-MAP therein.
			If (Next MBS MAP change indication=1)
Next MBS No.OFDMA symbols	2	This indication will send in this IE under the situation of the MBS frame that is used for multicast CID at BS, the size of the MBS-MAP message in the next MBS part.
			Next MBS No.OFDMA subchannels	6	This indication will send in this IE under the situation of the MBS frame that is used for multicast CID at BS, the size of the MBS-MAP message in the next MBS part.
}
			}

In table 11, MBS_DATA_IE comprises: ' Next MBS MAP change indication ' field, whether it indicates the size of the MBS-MAP message in the next MBS frame to change; ' Multicast CID ' field, its indication map is to the multicast identifier information of IE information; ' OFDMASymbol offset ' and ' Subchannel offset ' field, the start offset of its indication MBS data burst field; ' No.OFDMA symbols ' and ' No.subchannels ' field, the size of its indication MBS data burst field; ' Repetition coding indication ' field, it is that decoding MBS data burst field is necessary; ' Next MBS frame offset ' and ' Next MBS OFDMAsymbol offset ' field, it indicates the skew of the MBS-MAP message in the next MBS frame; ' Next MBS No.OFDMA symbols ' and ' Next MBS No.OFDMA subchannels ' field, it is indicated when Next MBS MAP change indication field is set to ' 1 ', the size of the MBS-MAP message in the next MBS frame.

As mentioned above, in traditional B WA communication system, the request of the broadcast service that MS will want sends to BS.For example, MS can ask the broadcast service of broadcasting station A or the broadcast service of broadcasting station B.But though broadcasting station A or broadcasting station B provide plurality of kinds of contents (for example, drama, physical culture, film or the like), MS can't separate (separately) asks each content.

The total possible quantity that is used for the multicast CID of identification of broadcast service is 95.Therefore, if the quantity of broadcast service has surpassed 95, just can not distribute multicast CID to the broadcast service that exceeds.In addition, when with the content being unit when distributing multicast CID, the shortage of multicast CID becomes considerable, and owing to the exchange quantity growth of DSA_REQ and DSA_RSP message causes resource consumption and time delay to increase.Thereby, need to expand the quantity of the ID that is used for identification of broadcast service and content and the scheme of minimized resource consumption and time delay.

Summary of the invention

Therefore, an object of the present invention is to provide a kind of system and method that is used for expanding the quantity of broadcast service identifier in mobile communication system.

Another object of the present invention provides a kind of system and method that can identify content in mobile communication system.

Another purpose of the present invention provides a kind of being used for makes the minimized broadcast service of resource consumption and time delay be connected method for building up and system thereof in mobile communication system.

According to an aspect of the present invention, provide a kind of being used for to be connected method for building up by the broadcast service that mobile radio station (MS) receives MBS in the mobile communication system of supporting multicast and broadcast service (MBS).This method comprises: the connection request of setting up of specific (particular) broadcast service is sent to base station (BS); And second identifier that receives first identifier be mapped to this particular broadcast service and be mapped at least one content broadcasting by (individually) individually distributes first and second identifiers from BS.

According to another aspect of the present invention, provide a kind of being used for to provide the broadcast service of MBS to be connected method for building up by base station (BS) to mobile radio station (MS) in broadband wireless access (BWA) communication system of supporting multicast and broadcast service (MBS).This method comprises: receive the connection that is used for particular broadcast service from MS and set up request; And second identifier allocation that will be mapped to first identifier of this particular broadcast service and be mapped to the broadcasting of at least one content is individually given MS.

According to a further aspect of the invention, provide a kind of and be used for, the broadcast service connection method for building up of MBS is provided between mobile radio station (MS) and base station (BS) in broadband wireless access (BWA) communication system of supporting multicast and broadcast service (MBS).This method comprises: by MS, the connection foundation of particular broadcast service is asked to send to BS; By BS, give MS with second identifier allocation that is mapped to first identifier of this particular broadcast service and is mapped to the broadcasting of at least one content individually; And, receive the MBS that is mapped to the identifier that is distributed by MS.

According to a further aspect of the invention, provide a kind of being used for to provide the broadcast service of MBS to be connected the system of foundation in broadband wireless access (BWA) communication system of supporting multicast and broadcast service (MBS).This system comprises: mobile radio station (MS) is used to send the request of foundation that is connected of particular broadcast service and the broadcasting of a plurality of content, and receives first identifier that is mapped to this particular broadcast service and be mapped to second identifier that a plurality of contents are broadcasted individually; And base station (BS), be used for when a plurality of contents broadcasting that receives that particular broadcast service and this particular broadcast service provided, first identifier that is mapped to this particular broadcast service and second identifier that is mapped at least one content broadcasting being distributed.

According to a further aspect of the invention, provide a kind of being used for to provide the broadcast service of MBS to be connected method for building up in broadband wireless access (BWA) communication system of supporting multicast and broadcast service (MBS).This method comprises: by base station (BS), the connection that will have a broadcast service identifier type (TLV) is set up request message and is sent to mobile radio station (MS) and be used for being connected of a plurality of contents broadcasting that particular broadcast service and this particular broadcast service provided with foundation; And, will send to BS to the response that request message is set up in this connection by MS.

Description of drawings

Above-mentioned and other purpose of the present invention, feature and advantage will become clearer by the detailed description below in conjunction with accompanying drawing, wherein:

Fig. 1 is the diagram that schematically illustrates the architecture of the MBS system in general mobile communication system;

Fig. 2 is the signaling diagram of the broadcast service connection procedure of explanation in traditional B WA communication system;

Fig. 3 schematically illustrates the diagram that comprises the downlink frame structure of MBS area information in general BWA communication system;

Fig. 4 is the signaling diagram of the broadcast service connection procedure during explanation is communicated by letter according to of the present invention, BWA;

Fig. 5 be explanation according to of the present invention, carry out the flow chart that broadcast service connects the process of setting up by MS; With

Fig. 6 be explanation according to of the present invention, carry out the flow chart that broadcast service connects the process of setting up by BS.

Embodiment

Now with reference to accompanying drawing the preferred embodiments of the present invention are described in detail.In the following description, for clarity and brevity, the detailed description of known function that this place is incorporated into and structure is omitted.

The invention provides such scheme: in mobile communication system, mobile radio station (MS) sends the connection foundation that is used for a plurality of broadcast service and asks base station (BS), and BS is that MS distributes connection identifier (CID (CID), and this identifier is mapped to described a plurality of broadcasting uniquely.Here, described " broadcast service " refer to by each independent broadcast service that the broadcasting station provided, perhaps by content broadcast service that the broadcasting station provided.

Just, the invention provides a kind of scheme, be used for sending the connection that is used for a plurality of broadcast service and set up request, and the method that is used to a plurality of broadcast service CID allocation is provided with single process.In addition, the invention provides can expand multicast CID quantity to distribute the scheme of a plurality of broadcast service CID.For this reason, the present invention provides four (4) individual embodiment below.

For the request of a plurality of broadcast service being sent to BS by a DSA_REQ message, the present invention has been a broadcast channel ID redetermination ' Multiple Broadcast Service ID Type/Length/Value (TLV) Encoding ' (a plurality of broadcast service ID TLV coding).When MS sends the broadcast service connection requests and receive this request responding, a plurality of broadcast service ID TLV codings are comprised in dynamic Service to be increased in the TLV coded message field of request (DSA_REQ) message, and this field is in order to indicate a plurality of broadcast service by this MS asked.This a plurality of broadcast service ID TLV coding will about in the broadcast service that MS asked at least one packets of information with which.

But, can implement to be used to indicate the method for the broadcast service of asking in every way according to the rank of indication broadcast service or broadcast service provider by MS.Therefore, employed parameter and the present invention have nothing to do in a plurality of broadcast service ID TLV codings, so omitted its detailed description.

Following table 12 shows the form that is included in broadcast service ID TLV coding in the DSA_REQ message, a plurality of.

Table 12

Type	Length	Value	Action scope
				[145/146].x	Variable	Compound (compound)	DSx-REQ

Indicate the parameter of a plurality of broadcast service to be comprised in a plurality of broadcast service ID TLV codings shown in the table 13.

Table 13

Type	Length	Value
			[145/146].x.1	4 or 6	IP address MBS content server
[145/146].x.2	2	The port number of MBS content

Top table 13 shows employed exemplary of parameters in a plurality of broadcast service ID TLV codings.The broadcast service ID TLV of table 12 can comprise IP address and the port number of the BS that this broadcast service is provided.When reception comprised the DSA_REQ message of a plurality of broadcast service ID TLV of table 12, BS was that in a plurality of broadcast service of MS request each is all set up MBS and connected.

In addition, redetermination of the present invention logical channel identifier (ID).Can be with this logic channel ID as the ID that can identify many contents.Replacedly, logic channel ID can expand in conjunction with multicast CID, and is used for identification of broadcast service or content.For example, logic channel ID can have 0 to 255 256 values altogether, and is comprised in dynamic Service and increases in request (DSA_REQ) message or DSA response (DSA_RSP) message.Logic channel ID can be contained in the TLV coded message field of above-mentioned message, and following table 14 shows its form.

Table 14

Type	Length	Value	Action scope
				[145/146].y	1	Logic channel ID (0～255)	DSx-RSP DSx-ACK

Send to BS if MS will have the DSA_REQ message of a plurality of broadcast service ID TLV coding, then the BS DSA_RSP message that will have about the information of a plurality of logic channel ID sends to MS.Here, though as example, the quantity of logic channel ID is as shown in table 14 to be 256, and the quantity that should be noted that logic channel ID is to expand according to the quantity of the broadcast service that is provided among the BS.

For example, the distribution that can ask a CID according to MS of the present invention, or request even be mapped to the distribution of the ID of a plurality of contents.Just, MS can ask the only distribution of the CID in first broadcasting station,, transmits CID or multicast CID that is, or the not only distribution of the CID in first broadcasting station of request, and the distribution of the ID of the content A, the B that are provided in this broadcasting station and C is provided in addition.

Thereby BS can only send to MS together with transmitting CID or multicast CID with DSA_RSP message, perhaps DSA_RSP message is sent to MS together with multicast CID that is mapped to content A, B and C and logic channel ID.Replacedly, BS can send to MS with 256 ID of the content that provided in DSA_RSP message this broadcasting station together with multicast CID and maximum quantity.

Here, when second broadcasting station broadcasting content identical with C with content A, B, the logic channel ID that is mapped to content A, the B in second broadcasting station and C can equal or be different from the content A, the B that are mapped to first broadcasting station and the logic channel ID of C.

Fig. 4 is the signaling diagram of the broadcast service connection procedure during explanation is communicated by letter according to of the present invention, BWA.

With reference to Fig. 4, in step 402, MS 400 search can be via the broadcast service of BS 450 receptions so that detect from the broadcast service tabulation of MBS server 480 broadcasting.That the tabulation of this broadcast service comprises is 400 needed about MS, in order to receive the information of described broadcast service.

In step 411, MS 400 sends DSA_REQ message and connects foundation to BS 450 with request MBS.For DSA_REQ message, can use traditional DSA_REQ message and the DSA_REQ message that newly proposed in the present invention in any one.The DSA_REQ message that is newly proposed among the present invention refers to can request even the message of the connection of the content that provided in the respective broadcast station.This connectivity request message is comprised in the TLV coded message field of DSA_REQ message.

When receiving DSA_REQ message, BS 450 identifies MS 400 requests and connects foundation to receive this broadcast service.Suppose the MS 200 single BS broadcast service of request or many BS broadcast service here, and each broadcast service all provides a plurality of content broadcasting.

Therefore, in step 413, BS 450 sends dynamic Service X_ReceiVeD (DSX_RVD) message to MS 400.This DSX_RVD message is to be used for notifying MS 400 to receive such as the message relevant with DSA of DSA_REQ message and handling received message about BS 450 is normal.

Afterwards, in step 415, BS 450 sends the DSA_RSP message of redetermination in the present invention in response to the broadcast service connection request from MS 400.There is logic channel ID to distribute to the TLV coded message field of the DSA_RSP message of redetermination with being mapped to the CID that broadcast service that MS 400 asked connects and being mapped to a plurality of contents broadcasting.Be noted here that described CID is the multicast CID that is used for the transmission CID of single BS broadcast service and is used for many BS broadcast service.

In step 417, when receiving DSA_RSP message, MS 400 sends the DSA shown in the table 8 and confirms that (DSA_ACK) message is to BS 450.

Up to step 417, after being assigned with the CID that is used for a broadcast service and being used for the logic channel ID of a plurality of content broadcasting, MS 400 can set up process by a connection and receive a plurality of broadcasting.

The exemplary use of the combination of CID and logic channel ID can be summarized as follows:

-CID: logic channel ID==broadcast service provider: the content broadcasting ID in the broadcast service

Exemplary use is meant to use multicast CID or transmit CID provides the service provider of respective broadcast service with sign, and uses logic channel ID so that a plurality of content broadcasting that provided in the respective broadcast service to be provided.Therefore, MS can dynamically select to set up a plurality of content broadcasting that process provides by broadcast service provider by single connection.

When the quantity of the content that provided by respective broadcast service provider broadcasting surpasses 256, i.e. the quantity of logic channel ID, BS can distribute a plurality of logical groups ID (possible, as to transmit CID or multicast CID) that it knows.This means that MS must carry out several times DSA_REQ/RSP process.In this case, the MBS server must be indicated the logical groups unit that has maximum 256 broadcast service in the MBS broadcast service tabulation that MS receives, and the tabulation of MBS broadcast service is provided, must carries out several times DSA_REQ/RSP process so that MS can identify it.MS carries out the DSA_REQ/RSP process number of times identical with logical groups information.

For example, the tabulation of MBS broadcast service can be included in logic channel ID0～255 that are used for logical groups ID#1 wherein with the logic channel ID 256～511 that is used for logical groups ID#2.Therefore, when the MS request was mapped to the content of logic channel ID 1,200 and 255, it can send to carry out to connect and set up with a DSA_REQ message.But when the MS request was mapped to the content of logic channel ID 200 and 500, it can send to carry out to connect and set up with two DSA_REQ message.

Most preferably expansion is mapped to the possible quantity of the broadcast service of a CID (that is logical groups ID).Just, if supposition is 65536 by the total quantity of a content that CID provided, so preferably, the scope of logic channel ID is extended for 0～65535.This means and length field must be extended for 2 bytes on length.

-multicast CID: logic channel ID==broadcast service provides group ID: broadcast service provider

Described exemplary use shows the solution of the 95 this situations that surpass for the quantity of the provider that broadcast service is provided in a MBS area.In other words, be 95 and the quantity of broadcast service provider in a MBS area surpasses in 95 the situation in the quantity of multicast CID, multicast CID is used as the ID that broadcast service provides group, and logic channel ID replaces multicast CID.

For example, the broadcast service provider with multicast CID value 0～94 has broadcast service provides group ID ' 0 ', and replaces multicast CID value 0～94 with logic channel ID value.In addition, the broadcast service provider that is mapped to multicast CID value 95～189 has broadcast service provides group ID ' 1 ', and replaces multicast CID value 95～189 with logic channel ID value.

Just, broadcast service provides group ID: broadcast service provider=mean broadcast service provider have existing (existing) multicast CID value 94 at 0: 94.

In addition, broadcast service provides group ID: broadcast service provider=mean 189th broadcast service provider newly added this MBS area at 1: 94.

Here, broadcast service can be provided group ID to extend to, i.e. the quantity of multicast CID up to 95.Just, broadcast service provides group ID to have the value of scope from 0～94.

Connect if set up a plurality of broadcasting by the DSA_REQ/RSP message exchange procedure between MS and BS, then MS can receive the broadcast that corresponding MBS connects.Therefore, the form of MBS_DATA_IE is revised, so that MS can use service of logic channel ID identification of broadcast and content broadcasting.Following table 15 shows the form of amended MBS_DATA_IE.

Table 15

Grammer	Size (bits)	Note
			MBS_DATA_IE{
MBS_MAP_Type=0	4	MBS_DATA_IE
			Next MBS MAP change indication	1	Whether therewith this indication is used to comprise size the varying in size of MBS-MAP message of MBS-MAP message of next MBS frame of these multicasts CID of this IE.
CID LIST Format	1
			If (CID LIST Format==0)
No.of Multicast CID	3
			For (i=0; I＜No. of Multicast CIDs; I++)
Multicast CID	12	12 LSB that are used for the CID of multicast
			Logical Channel ID	8	Logic channel ID
}
			Else{
No.of Logical Channel ID	3	12 LSB that are used for the CID of multicast
			Multicast CID	12
For (i=0; I＜No. of Logical Channel ID; I++)

{
			Logical ChannelID	8	Logic channel ID
}
			}
MBS DIUC	4
			OFDMA symbol offset	8	OFDMA symbol offset for this MBS beginning partly
Subchannel offset	6	OFDMA subchannel offset for this MBS beginning partly
			Boosting	3
No.OFDMA symbols	7	The size of MBS data
			No.subchannels	6
Repetition coding indication	2	The repeated encoding that the repeated encoding that the repeated encoding that 0b00=does not have a repeated encoding 0b01=2 is used 0b10=4 is used 0b11=6 is used
			Next MBS frame offset	8	Next MBS frame offset value is than the low 8bits of frame number, and BS will send next MBS frame therein.
Next MBS OFDMA symbol offset	8	The skew of the OFDMA code element of beginning therein of next MBS part is in the OFDMA code element, from this skew of point measurement of the descending chain circuit frame that sends MBS-MAP therein.
			If (Next MBS MAP change indication=1)
Next MBS No.OFDMA symbols	2	This indication will send in this IE under the situation of the next MBS frame that is used for multicast CID at BS, the size of the MBS-MAP message in the next MBS part.
			Next MBS No.OFDMA subchannels	6	This indication will send in this IE under the situation of the next MBS frame that is used for multicast CID at BS, the size of the MBS-MAP message in the next MBS part.
}
			}

As shown in Table 15, amended MBS_DATA_IE form indication newly interpolation logic channel ID, so that serve by actual when being mapped to frame as MBS, MS can identify corresponding broadcast service.

When considering the downlink burst of only being made up of the broadcast service with identical CID (perhaps different logic channel ID), the present invention adds CID listings format parameter in the MBS_DATA_IE form to, is repeated to comprise to prevent identical multicast CID.

In the form of this MBS_DATA_IE, CID List Format=0 means that the broadcast CID in the MBS data burst indicated by MBS_DATA_IE is different.Just, because it means the existence of at least two broadcast CID,, make the assignment order of distinguishing broadcast service message become possibility so that a plurality of multicast CID and a plurality of logic channel ID are made into is right, as shown in table 13.Just, MS must identify broadcast by with multicast CID:: the order of logic channel ID is included in by in the indicated MBS data burst of MBS_DATA_IE.Here, the broadcast that is comprised in the MBS data burst has medium access control (MAC) form, and the CID field in the header field of this mac frame comprises multicast CID therein.In addition, as the invention provides logic channel ID, broadcast is by with multicast CID:: the order of logic channel ID is included among the MBS_DATA_IE.

CID List Format=1 means by the broadcast CID in the indicated MBS data burst of MBS_DATA_IE mutually the same.Thereby, need not to repeat to comprise identical multicast CID, and may distinguish the assignment order of broadcast service message with a multicast CID and its a plurality of logic channel ID that are associated.The a plurality of broadcast service message that are used for a logic channel ID can be contained in a MBS data burst.Should be noted that in this case a plurality of logic channel ID can be comprised among the MBS_DATA_IE.

Fig. 5 be explanation according to of the present invention, carry out the flow chart that broadcast service connects the process of setting up by MS.

With reference to Fig. 5, in step 502, the MS search also detects the broadcast service tabulation that provides from the MBS server.In step 504, MS sends DSA_REQ message to BS.Here the indicated value that the TLV coded message field of supposing DSA_REQ message comprises the single BS broadcast service connection request of indication or many BS broadcast service connection request therein.For DSA_REQ message, can use in the DSA_REQ message that is provided among Traditional DSA _ REQ message and the present invention any one.The DSA_REQ message that is provided can be used to the not only corresponding broadcast service of connection request (connection-requesting), and can be used to the content that connection request is provided in this broadcast service.In step 506, at least one logic channel ID that will be mapped to the CID of the broadcast service of being asked and be mapped to the content that this broadcast service provides from BS distributes to MS.Here, the CID that is mapped to broadcast service is used in the transmission CID in single BS broadcast service or is used in multicast CID in many BS broadcast service.

Fig. 6 be explanation according to of the present invention, carry out the flow chart that broadcast service connects the process of setting up by BS.

With reference to Fig. 6, in step 602, BS receives the DSA_REQ message that comprises indicated value from MS, and this indicated value is indicated single BS broadcast service connection request or many BS broadcast service connection request.For DSA_REQ message, can use in the DSA_REQ message that is provided among Traditional DSA _ REQ message and the present invention any one.The DSA_REQ message that is provided can be used to the not only corresponding broadcast service of connection request, and can be used to the content that connection request is provided in this broadcast service.In step 604, BS distributes to MS with CID and at least one logic channel ID, and this CID is mapped to the broadcast service of being asked, and this logic channel ID is mapped to the content that this broadcast service provides.Here, the CID that is mapped to broadcast service transmits CID or multicast CID.

The second embodiment of the present invention provides such scheme: by this scheme, when MS sent Traditional DSA _ REQ message to BS, BS carried out broadcast service and connects.

Traditional DSA _ REQ message can only be used for connection request list BS broadcast service.Therefore, in the second embodiment of the present invention, when receiving Traditional DSA _ REQ message from MS, the link information that at least one broadcast service of providing in its MBS area will be provided BS is included in the DSA_RSP message, promptly, MBS content ID, and, DSA_RSP message is sent to MS in response to received DSA_REQ message.

Therefore, the TLV coded message field of DSA_RSP message and DSA_ACK message must comprise the form shown in the following table 16.Table 16 illustrates the form of MBS content ID parameter.

Table 16

Type	Length	Value	Action scope
				[145.146].y	N*2	MBS content ID (0), MBS content ID (1) ... .., MBS content ID (n-1)	DSx-RSP，DSx-ACK

MBS content ID parameter shown in the table 16 has the TLV coded format, and comprise by BS to the request broadcast service the broadcast service that MS provided (or broadcast channel) ID therein.If the quantity of MBS content ID is N, then the total length of all MBS content ID is 2*N, because the length of a MBS content ID is 2 bytes.The length of MBS content ID is changed according to its enforcement.The value that is included among the MBS content ID should come into question on the upper strata of MAC layer, and is therefore not directly related with the present invention.

When receiving the DSA_RSP message that comprises MBS content ID, MS must grasp (grasp) relations of distribution at the conceptive logic channel ID different with the logic channel ID shown in the table 14.Just, also can logic channel ID be begun to distribute from being worth 0 with the order that is included in the MBS content ID in the DSA_RSP message.For example, in the value field of table 16, logic channel ID ' 0 ' (for example is assigned to a MBS content ID, MBS content ID (0)), logic channel ID ' 1 ' (for example is assigned to the 2nd MBS content ID, MBS content ID (1)), and logic channel ID ' N ' be assigned to N MBS content ID (for example, MBS content ID (N-1)).The MBS content ID TLV of table 16 can be used in addition such situation: MS utilize proposed can a plurality of broadcast service of request DSA_REQ message send the request that is used for a plurality of broadcast service.

Replacedly, BS can ask MBS to connect to MS by sending DSA_REQ message.Therefore, BS can send to MS together with DSA_REQ message with the MBS content ID TVL that is provided in the second embodiment of the present invention.In order to reference, described DSA_REQ message comprises a CID therein.

The third embodiment of the present invention provides the MBS_DATA_IE form different with the MBS_DATA_IE form of table 15.When MS identified (granted thereto) broadcast service that is allowed according to first embodiment or second embodiment, BS sent to MS with the MBS_DATA_IE shown in the following table 17 together with descending chain circuit frame.

Table 17

Grammer	Size (bits)	Note
			MBS_DATA_IE{
MBS_MAP_Type=0	4	MBS_DATA_IE
			Next MBS MAP change indication	1	This indication be used to comprise this IE these multicasts CID next MBS frame MBS MAP message size whether with the varying in size of this MBS MAP message.
No.of Multicast CID	3
			For (i=0; I＜No.of Multicast CIDs; I++)
Multicast CID	12	12 LSB that are used for the CID of multicast
			No.of Logical Channel ID	3	12 LSB that are used for the CID of multicast

For (i=0; I＜No.of Logical Channel ID; I++)
			Logical Channel ID	8	Logic channel ID
}
			}
MBS DIUC	4
			OFDMA symbol offset	8	OFDMA symbol offset for this MBS beginning partly
Subchannel offset	6	OFDMA subchannel offset for this MBS beginning partly
			Boosting	3
No.OFDMA symbols	7	The size of MBS data
			No.subchannels	6
Repetition coding indication	2	The repeated encoding that the repeated encoding that the repeated encoding that 0b00=does not have a repeated encoding 0b01=2 is used 0b10=4 is used 0b11=6 is used
			Next MB S frame offset	8	Next MBS frame offset value is than the low 8bits of frame number, and BS will send next MBS frame therein.
Next MBS OFDMA symbol offset	8	The skew of the OFDMA code element of beginning therein of next MBS part is in the OFDMA code element, from this skew of point measurement of the descending chain circuit frame that sends MBS-MAP therein.
			If (Next MBS MAP change indication=1)
Next MBS No.OFDMA symbols	2	This indication will send in this IE under the situation of the next MBS frame that is used for multicast CID at BS, the size of the MBS_MAP message in the next MBS part.
			Next MBS No.OFDMA subchannels	6	This indication will send in this IE under the situation of the next MBS frame that is used for multicast CID at BS, the size of the MBS_MAP message in the next MBS part.
}
			}

Shown in table 17, the MBS_DATA_IE form is indicated when broadcast service is mapped to descending chain circuit frame, comes the assignment logic channel id according to multicast CID.MS must identify in advance and be mapped to multicast CID:: the broadcast of logic channel ID sequentially is included in the MBS data burst field of descending chain circuit frame.This is possible when MS reads MBS_DATA_IE.Here, be included in the form that broadcast in the MBS data burst field has mac frame, and multicast CID is comprised in the CID field of mac frame header field.

Be mapped to multicast CID:: the broadcast of logic channel ID can sequentially be included in the MBS data burst of descending chain circuit frame.But be mapped to multicast CID:: the broadcast of logic channel ID may sequentially be included in the MBS data burst field.In this case, logic channel ID is comprised in the front portion (front) of broadcasted content, and this broadcasted content is in the broadcast that is comprised in the MBS data burst field.

With multicast CID:: whether the order of logic channel ID, or do not consider that order ground distributes to the MBS data burst field of broadcast downlink frame with broadcast is included in logic channel ID with in the broadcasted content of broadcast relevant.

The fourth embodiment of the present invention provides the MBS MAP message format of revising.When MS identifies the broadcast service of allowance, for example, when MS identified logic channel ID, BS was using the MBS MAP message of revising when MS provides broadcast service, and traditional MBS_DATA_IE and the MBS_DATA_IE that is provided all can be applied to this message.Following table 18 shows the form of amended MBS MAP message.

Table 18

Grammer	Size (bits)	Note
			MBS-MAP Message format ()
MAC Generic Header	48	6 bytes
			Management message type=62	4
Frame number	4	This frame number is identical with frame number among the DL_MAP.
			MBS_DIUC_Change_Count	8
#MBS_DATA_IE	4	The quantity that comprises MBS_DATA_IE
			For (i=0; I＜n; I++)		N=#MBS_DATA_IE

MBS_DATA_IE	Variable
			}
#MBS_DATA_IE with Logical Channel ID	4	Quantity with MBS_DATA_IE that is comprised of logic channel ID
			For(i＝0；i＜p；I++){		p＝#MBS_DATA_IE with Logical ChannelID
MBS_DATA_IE with Logical Channel ID	Variable
			}
#MBS_DATA_Time_Diversity_IE	4	The quantity of the MBS_DATA_Time_Diversity_IE that is comprised
			For(i＝0；i＜m；i++){		m＝ #MBS_DATA_Time_Diversity_IE
MBS_DATA_Time_Diversity_IE	Variable
			}
If(！byte boundary){
			Padding nibble	8
}
			TLV encoding element
}

The new in the present invention MBS MAP message that proposes has by add ' #MBS_DATA_IE with Logical Channel ID ' field and definite form to traditional MBS MAP message.MS reference (make reference to) is used for traditional MBS_DATA_IE of broadcast service, and this broadcast service is only comprised the DSA_RSP message identification of multicast CID.But the MS that receives the DSA_RSP message that comprises logic channel ID and multicast CID is with reference to the MBS_DATA_IE that is provided in first embodiment or the 3rd embodiment.In table 18, if the quantity of indication logic channel ID ' #MBS_DATA_IE with Logical ChannelID ' field has value ' 0 ', and then it means in MBS MAP message not the MBS_DATA_IE with logic channel ID.

As to understand from the front is described, during the MBS between BS and the MS connected, the present invention had set up a plurality of broadcast service and has connected, and made the minimizing of resource consumption and time delay.In addition, the present invention newly provides logic channel ID, thereby has made things convenient for the ID to being used for a plurality of content broadcasting to distribute, and the limited quantity of multicast CID is expanded.

Although illustrate and described the present invention with reference to given preferred embodiment of the present invention, but those skilled in the art should understand, under the condition that does not break away from as the defined the spirit and scope of the present invention of claims, can carry out various variations to it in form and details.

Claims (58)

1. one kind is used for being connected method for building up in the mobile communication system of supporting multicast and broadcast service (MBS) by the broadcast service that mobile radio station (MS) receives MBS, and this method comprises:

The connection request of setting up that will be used for particular broadcast service sends to base station (BS); And

Reception is mapped to first identifier of described particular broadcast service and is mapped to second identifier of at least one content broadcasting individually, and described first and second identifiers distribute from described BS.

2. broadcast service as claimed in claim 1 connects method for building up, and wherein, the described connection request of setting up is comprised in dynamic Service to be increased in type (TLV) the coded message field of request (DSA_REQ) message.

3. broadcast service as claimed in claim 1 connects method for building up, and wherein, described first identifier is to be used for being identified at a sub-district by the transmission connection identifier (CID (CID) of the broadcast service of unique broadcasting.

4. broadcast service as claimed in claim 1 connects method for building up, and wherein, described first identifier is the multicast CID that is used for being identified at the broadcast service of the sub-district of predetermined quantity being broadcasted publicly.

5. broadcast service as claimed in claim 1 connects method for building up, wherein, the combined value that combination by described first identifier and described second identifier obtains is assigned to the 3rd identifier, and the 3rd identifier is mapped to each content broadcasting on man-to-man basis.

6. broadcast service as claimed in claim 1 connects method for building up, and wherein, the combined value that the combination by described first identifier and described second identifier obtains is assigned to the 4th identifier, and the 4th identifier is mapped to described particular broadcast service.

7. broadcast service as claimed in claim 1 connects method for building up, and wherein, described second identifier is the MBS content ID that is mapped to described at least one content broadcasting.

8. broadcast service as claimed in claim 7 connects method for building up, and wherein, described second identifier is the MBS content ID that is mapped to described at least one content broadcasting.

9. broadcast service as claimed in claim 1 connects method for building up, and wherein, described second identifier is a logical channel identifier of distributing to described first identifier.

10. broadcast service as claimed in claim 9 connects method for building up, and wherein, described logical channel identifier is used to distinguish second identifier that belongs to identical first identifier.

11. one kind is used for providing the broadcast service of MBS to be connected method for building up by base station (BS) to mobile radio station (MS) in the mobile communication system of supporting multicast and broadcast service (MBS), this method comprises:

Receive the connection that is used for particular broadcast service from described MS and set up request; And

Give described MS with second identifier allocation that is mapped to first identifier of described particular broadcast service and is mapped to the broadcasting of at least one content individually.

12. broadcast service as claimed in claim 11 connects method for building up, wherein, described identifier is comprised in dynamic Service to be increased in type (TLV) the coded message field of response (DSA_RSP) message.

13. broadcast service as claimed in claim 11 connects method for building up, wherein, described first identifier is to send connection identifier (CID (CID).

14. broadcast service as claimed in claim 11 connects method for building up, wherein, described first identifier is multicast CID.

15. broadcast service as claimed in claim 11 connects method for building up, wherein, the combined value that combination by described first identifier and described second identifier obtains is assigned to the 3rd identifier, and the 3rd identifier is mapped to each content broadcasting on man-to-man basis.

16. broadcast service as claimed in claim 11 connects method for building up, wherein, the combined value that the combination by described first identifier and described second identifier obtains is assigned to the 4th identifier, and the 4th identifier is mapped to described particular broadcast service.

17. broadcast service as claimed in claim 15 connects method for building up, wherein, in the specific fields of the position of indication MBS data and big or small information were comprised in descending chain circuit frame before being sent out MBS MAP message, described MBS data obtain by the distribution of described first identifier and second identifier or described the 3rd identifier or described the 4th identifier.

18. broadcast service as claimed in claim 16 connects method for building up, wherein, in the specific fields of the position of indication MBS data and big or small information were comprised in descending chain circuit frame before being sent out MBS MAP message, described MBS data obtain by the distribution of described first identifier and second identifier or described the 3rd identifier or described the 4th identifier.

19. broadcast service as claimed in claim 17 connects method for building up, wherein, described MBS MAP message comprises the information of indication information number of fragments, and this information segment indication has the position and the size of the MBS data of described second identifier.

20. broadcast service as claimed in claim 18 connects method for building up, wherein, described MBS MAP message comprises the information of indication information number of fragments, and this information segment indication has the position and the size of the MBS data of described second identifier.

21. broadcast service as claimed in claim 17 connects method for building up, wherein, described MBS MAP message comprises the information about described first identifier and described second identifier.

22. broadcast service as claimed in claim 18 connects method for building up, wherein, described MBS MAP message comprises the information about described first identifier and described second identifier.

23. broadcast service as claimed in claim 17 connects method for building up, wherein, the position of described indication MBS data and the information of size are represented by described first identifier and described second identifier.

24. broadcast service as claimed in claim 18 connects method for building up, wherein, the position of described indication MBS data and the information of size are represented by described first identifier and described second identifier.

25. broadcast service as claimed in claim 11 connects method for building up, wherein, described second identifier is the MBS content ID that is mapped to described at least one content broadcasting.

26. broadcast service as claimed in claim 11 connects method for building up, wherein, described second identifier is a logical channel identifier of distributing to described first identifier.

27. broadcast service as claimed in claim 26 connects method for building up, wherein, described logical channel identifier is used to distinguish second identifier that belongs to identical first identifier.

28. one kind is used in the mobile communication system of supporting multicast and broadcast service (MBS), the broadcast service connection method for building up of MBS is provided between mobile radio station (MS) and base station (BS), this method comprises:

The connection request of setting up that will be used for particular broadcast service by described MS sends to described BS;

Give described MS by second identifier allocation that described BS will be mapped to first identifier of described particular broadcast service and be mapped to the broadcasting of at least one content individually; And

Receive the MBS that is mapped to the identifier that is distributed by described MS.

29. broadcast service as claimed in claim 28 connects method for building up, wherein, described first identifier is to send connection identifier (CID (CID).

30. broadcast service as claimed in claim 28 connects method for building up, wherein, described first identifier is multicast CID.

31. broadcast service as claimed in claim 28 connects method for building up, wherein, described second identifier is each the MBS content ID that is mapped in described a plurality of content broadcasting.

32. broadcast service as claimed in claim 28 connects method for building up, wherein, the combined value that combination by described first identifier and described second identifier obtains is assigned to the 3rd identifier, and the 3rd identifier is mapped to described a plurality of content broadcasting on man-to-man basis.

33. broadcast service as claimed in claim 28 connects method for building up, wherein, the combined value that the combination by described first identifier and described second identifier obtains is assigned to the 4th identifier, and the 4th identifier is mapped to described particular broadcast service.

34. broadcast service as claimed in claim 32 connects method for building up, wherein, in the specific fields of the position of indication MBS data and big or small information were comprised in descending chain circuit frame before being sent out MBS MAP message, described MBS data obtain by the distribution of described first identifier and second identifier or described the 3rd identifier or described the 4th identifier.

35. broadcast service as claimed in claim 33 connects method for building up, wherein, in the specific fields of the position of indication MBS data and big or small information were comprised in descending chain circuit frame before being sent out MBS MAP message, described MBS data obtain by the distribution of described first identifier and second identifier or described the 3rd identifier or described the 4th identifier.

36. broadcast service as claimed in claim 34 connects method for building up, wherein, described MBS MAP message comprises the information of indication information number of fragments, and this information segment indication has the position and the size of the MBS data of described second identifier.

37. broadcast service as claimed in claim 35 connects method for building up, wherein, described MBS MAP message comprises the information of indication information number of fragments, and this information segment indication has the position and the size of the MBS data of described second identifier.

38. broadcast service as claimed in claim 34 connects method for building up, wherein, described MBS MAP message comprises the information about described first identifier and described second identifier.

39. broadcast service as claimed in claim 35 connects method for building up, wherein, described MBS MAP message comprises the information about described first identifier and described second identifier.

40. broadcast service as claimed in claim 28 connects method for building up, wherein, described second identifier is the MBS content ID that is mapped to described at least one content broadcasting.

41. broadcast service as claimed in claim 28 connects method for building up, wherein, described second identifier is a logical channel identifier of distributing to described first identifier.

42. broadcast service as claimed in claim 41 connects method for building up, wherein, described logical channel identifier is used to distinguish second identifier that belongs to identical first identifier.

43. one kind is used for providing the broadcast service of MBS to be connected the system of foundation in the mobile communication system of supporting multicast and broadcast service (MBS), this system comprises:

Mobile radio station (MS) is used to send the request of foundation that is connected that is used for particular broadcast service and a plurality of content broadcasting, and receives first identifier that is mapped to described particular broadcast service; With

Base station (BS), be used for receiving when being used for particular broadcast service and setting up request in being connected of this particular broadcast service provided a plurality of contents broadcasting, allocation map is to first identifier of described particular broadcast service and be mapped to second identifier that at least one content is broadcasted.

44. broadcast service as claimed in claim 43 connects the system that sets up, wherein, the described MS connection that will be used for a plurality of contents broadcasting before sending is set up request package and is contained in type (TLV) the coded message field that dynamic Service increases request (DSA_REQ) message.

Set up system 45. broadcast service as claimed in claim 43 connects, wherein, described BS is included in dynamic Service with described identifier before distribution increase in the TLV coded message field of response (DSA_RSP) message.

Set up system 46. broadcast service as claimed in claim 43 connects, wherein, described first identifier is to send connection identifier (CID (CID).

Set up system 47. broadcast service as claimed in claim 43 connects, wherein, described first identifier is multicast CID.

48. broadcast service as claimed in claim 43 connects the system that sets up, wherein, the combined value that described BS will obtain by the combination of described first identifier and described second identifier is assigned as the 3rd identifier, and the 3rd identifier is mapped to described a plurality of content broadcasting on man-to-man basis.

49. broadcast service as claimed in claim 43 connects the system that sets up, wherein, the combined value that described BS will obtain by the combination of described first identifier and described second identifier is assigned as the 4th identifier, and the 4th identifier is mapped to described particular broadcast service.

Set up system 50. broadcast service as claimed in claim 49 connects, wherein, described BS will indicate before sending in the MBS data information element of the position of MBS data and the MBSMAP message that big or small information is included in descending chain circuit frame.

Set up system 51. broadcast service as claimed in claim 50 connects, wherein, described MBS MAP message comprises the information of indication information number of fragments, and this information segment indication has the position and the size of the MBS data of described second identifier.

Set up system 52. broadcast service as claimed in claim 50 connects, wherein, the position of described indication MBS data and the information of size are represented by described first identifier and described second identifier.

Set up system 53. broadcast service as claimed in claim 52 connects, wherein,, described MBS data sequentially are included in the MBS data burst field of descending chain circuit frame based on by described first identifier and the represented information of described second identifier.

Set up system 54. broadcast service as claimed in claim 52 connects, wherein, do not consider described MBS data to be included in randomly in the MBS data burst field of descending chain circuit frame by described first identifier and the represented information of described second identifier.

Set up system 55. broadcast service as claimed in claim 54 connects, wherein, described MBS data are identified by the logical channel identifier that is comprised in the described MBS MAP message.

Set up system 56. broadcast service as claimed in claim 43 connects, wherein, described second identifier is the MBS content ID that is mapped to described at least one content broadcasting.

Set up system 57. broadcast service as claimed in claim 43 connects, wherein, described second identifier is the logical channel identifier that is assigned to described first identifier.

Set up system 58. broadcast service as claimed in claim 57 connects, wherein, described logical channel identifier is used to distinguish second identifier that belongs to identical first identifier.

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