CN101990167A

CN101990167A - Instruction-transmitting method of multicast broadcast connection protocol data unit

Info

Publication number: CN101990167A
Application number: CN200910174334XA
Authority: CN
Inventors: 石晓娟; 吕开颖; 刘扬
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-07-31
Filing date: 2009-09-07
Publication date: 2011-03-23
Also published as: WO2011012037A1

Abstract

The invention discloses an instruction-transmitting method of a multicast broadcast connection protocol data unit. In the method, a base station transmits the protocol data unit of multicast broadcast connection to a subscriber station, wherein the protocol data unit contains protocol header and load; the data of SDU or segmented by the SDU in the load are from one or more of multicast broadcast service contents; the one or more of multicast broadcast service contents belong to one multicast broadcast service connection; the multicast service identifier which identifies the multicast broadcast service connection can be carried in the resource allocation information of the control channel; and the identifiers used for distinguishing different multicast broadcast service contents are indicated in the protocol header or carried in the resource allocation information of the control channel. By adopting the method of the invention, the cost of multicast broadcast service signaling connection can be reduced, the efficient transmission of the multicast broadcast service can be realized and the utilization rate of the air interface resource can be increased.

Description

The transmission indicating means of multicast and broadcast connection protocol data cell

Technical field

The present invention relates to the mobile communication technology field, relate in particular to a kind of transmission indicating means of multicast and broadcast connection protocol data cell.

Background technology

In WiMAX technology of new generation, Multimedia Broadcast Multicast Service is called the Multimedia Broadcast Multicast Service (Enhanced-Multicast Broadcast Service abbreviates E-MBS as) of enhancement mode, is a kind of technology that transmits data from a data source to a plurality of targets.Multimedia Broadcast Multicast Service can improve the utilance of Internet resources, especially air interface resource effectively.Along with the application and the popularization of multimedia shared service, carry out the Multimedia Broadcast Multicast Service transmission efficiently, wide-band mobile communication system of future generation is become particularly important.

In the IEEE 802.16 network reference model layerings, common part sublayer receives data by medium access control system (Medium Access Control abbreviates MAC as) layer service access point from convergence sub-layer, form MAC layer service data cell (Service Data Unit abbreviates SDU as).MAC SDU can be recombinated by segmentation, encapsulates with protocol header again, forms a mac-layer protocol data cell (Protocol Data Unit abbreviates PDU as), and MACPDU is the MAC layer data unit of pass-along message between base station and the subscriber station.

MAC PDU is made up of protocol header and adjustable length load (optional), as shown in Figure 1.Wherein, protocol header comprises a MAC head, may comprise one or more extension header (Extended Header abbreviates EH as).Among the IEEE 802.16m, the MAC head has two kinds: versatile MAC head and compression MAC head, respectively as shown in Figures 2 and 3.Wherein, compression MAC head is used in particular for the transmission of the MAC PDU that persistent assignments is connected with set of dispense.Extension header has three kinds: partition packetization extension header, segmentation extension header and multiplexing extension header, and respectively as Fig. 4, Fig. 5 and shown in Figure 6.Wherein, the partition packetization extension header is used for from the SDU of certain transmission connection or the segmentation or the packing of SDU segmentation; The segmentation extension header is used for from the SDU of certain management connection or the segmentation of SDU segmentation; Multiplexing extension header is made up of a plurality of multiplexing expansion chieftain pieces (as shown in Figure 7), is used for from the SDU of a plurality of connections or the packing of SDU segmentation.

For unicast service, IEEE 802.16m regulation, the base station is that each subscriber station of registered network distributes unique station identifications (Station Identifier, abbreviate STID as), a plurality of clean cultures under the same subscriber station (or STID) connect, distinguish by traffic stream identifier (FlowIdentifier abbreviates FID as).That is to say that in a base station area, each clean culture connects and unites definition by STID and FID, wherein, STID carries in the resource allocation information of clean culture control channel, and FID indicates in MAC PDU head, thereby has realized the transmission indication to clean culture connection protocol data cell.

For Multimedia Broadcast Multicast Service, IEEE 802.16m regulation, each Multimedia Broadcast Multicast Service connection in the E-MBS zone (E-MBSzone) is assigned with a general multicast service sign (Multicast STID, abbreviate MSTID as), MSTID is included in the control information, is used to refer to different Multimedia Broadcast Multicast Service and connects.A Multimedia Broadcast Multicast Service connects down, may only comprise an E-MBS content, also may comprise a plurality of E-MBS contents simultaneously, and these different E-MBS contents are distinguished by Logic Channel Identifier.But the variety of protocol head among the existing IEEE 802.16m all connects design at clean culture, does not propose the indicating means that sends at multicast and broadcast connection protocol data cell as yet.

Summary of the invention

In view of this, the invention provides a kind of transmission indicating means of multicast and broadcast connection protocol data cell, in order to solve the problem that does not propose as yet in the prior art at the indicating means of multicast and broadcast connection protocol data cell transmission.

According to the present invention, provide a kind of transmission indicating means of multicast and broadcast connection protocol data cell.

Transmission indicating means according to multicast and broadcast connection protocol data cell of the present invention comprises: the base station sends the protocol Data Unit that multicast and broadcast connects to subscriber station, and wherein, this protocol Data Unit comprises protocol header, load.

Further, the load of above-mentioned protocol Data Unit is made up of one or more Service Data Unit SDU or SDU segmentation, the data of above-mentioned SDU or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and above-mentioned a plurality of Multimedia Broadcast Multicast Service contents belong to a Multimedia Broadcast Multicast Service and connect.

Preferably, when the data of above-mentioned SDU or SDU segmentation during from a plurality of Multimedia Broadcast Multicast Service content, this method also comprises: carry the sign that is used to indicate described Multimedia Broadcast Multicast Service content in the protocol header of above-mentioned protocol Data Unit, indication is used to identify the multicast service sign that described Multimedia Broadcast Multicast Service connects in the resource allocation information of control channel.

Preferably, above-mentioned protocol header can comprise a multicast and broadcast compression MAC head.

Preferably, above-mentioned multicast and broadcast compression MAC head comprises that following indication territory one of at least: whether comprise prolate-headed extension header indication territory, indication in the indication protocol header and form the length field of the length of the SDU of load or SDU segmentation, keep the territory.

Preferably, above-mentioned protocol header also can comprise a multicast and broadcast versatile MAC head.

Preferably, above-mentioned multicast and broadcast versatile MAC head comprises that following indication territory one of at least: be used for indicating identification field, the indication protocol header of Multimedia Broadcast Multicast Service content whether to comprise prolate-headed extension header indication territory, indication and form the length field of the length of the SDU of load or SDU segmentation, keep the territory.

Preferably, when the data of SDU that forms load or SDU segmentation during from a Multimedia Broadcast Multicast Service content, be used to indicate the special identifier of identification field for reserving of Multimedia Broadcast Multicast Service content, indication multicast and broadcast versatile MAC head is not used in the sign of each Multimedia Broadcast Multicast Service content of indication.

Further, when extension header indication territory indicated above-mentioned protocol header to comprise extension header, protocol header also comprised: one or more extension header.

Preferably, each extension header one of comprises in the following indication territory at least: whether the indication extension header is last prolate-headed head of protocol header extension header type field, extension header entity of stopping identification field, the prolate-headed type of indication, keeps the territory, wherein, prolate-headed type comprises: multicast and broadcast partition packetization extension header, the multiplexing extension header of multicast and broadcast.

Further, when extension header was multicast and broadcast partition packetization extension header, this extension header was used for segmentation or packing are carried out in SDU or SDU segmentation from a Multimedia Broadcast Multicast Service content.

Preferably, when extension header is multicast and broadcast partition packetization extension header, the extension header entity comprises following indication territory: N the territory that the sequence number territory of the SDU of indication composition load or the sequence number of SDU segmentation, segmentation control domain, a N-1 length field, the indicating length territory of indication segmentation control information stop stops identifying, wherein, N is the SDU of composition load or the quantity of SDU segmentation.

Further, when extension header was the multiplexing extension header of multicast and broadcast, this extension header was used for packaging multiplexing is carried out in SDU or SDU segmentation from one or more Multimedia Broadcast Multicast Service contents.

Preferably, when extension header is the multiplexing extension header of multicast and broadcast, the extension header entity comprise following one of at least: the multiplexing expansion of one or more multicast and broadcasts chieftain piece, keep the territory, the Multimedia Broadcast Multicast Service content that the corresponding load of the multiplexing expansion of each multicast and broadcast chieftain piece comprises.

Preferably, the multiplexing expansion of above-mentioned multicast and broadcast chieftain piece is used to describe the SDU of its corresponding Multimedia Broadcast Multicast Service content or the information of SDU segmentation, comprises following indication territory: whether indication expansion chieftain piece is the termination of a block identification field of last expansion chieftain piece, the identification field that is used to indicate the Multimedia Broadcast Multicast Service content, segmentation control domain, sequence number territory, territory termination sign, length field.

Preferably, if protocol header comprises a multicast and broadcast compression MAC head, then the multiplexing expansion of each multicast and broadcast chieftain piece all comprises the sign that is used to indicate the Multimedia Broadcast Multicast Service content, and when the data of SDU or SDU segmentation during from a Multimedia Broadcast Multicast Service content, be used to indicate the special identifier of identification field for reserving of Multimedia Broadcast Multicast Service content, represent that the multiplexing expansion of this multicast and broadcast chieftain piece is not used in the sign of indication Multimedia Broadcast Multicast Service content; If protocol header comprises a multicast and broadcast versatile MAC head, then the 1st the multiplexing expansion of multicast and broadcast chieftain piece do not comprise the sign that is used to indicate the Multimedia Broadcast Multicast Service content.

Preferably, for above-mentioned length field, the 1st the multiplexing expansion of multicast and broadcast chieftain piece comprises N1-1 length field, i the multiplexing expansion of multicast and broadcast chieftain piece comprises Ni length field in the multiplexing expansion of all the other multicast and broadcasts chieftain piece, wherein, N1 in the load with the quantity of the 1st multicast and broadcast multiplexing expansion pairing SDU of chieftain's piece or SDU segmentation, Ni in the load with i the multiplexing quantity of expanding pairing SDU of chieftain's piece or SDU segmentation of multicast and broadcast.

Preferably, stop sign for above-mentioned territory, i the multiplexing expansion of multicast and broadcast chieftain piece comprises that Ni territory stops sign, wherein, Ni be in loading with the quantity of i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.

Preferably, said method can also comprise: do not carry the sign that is used to indicate the Multimedia Broadcast Multicast Service content in the protocol header of protocol Data Unit, the sign that indication is used to identify the multicast service sign of this Multimedia Broadcast Multicast Service connection and is used to indicate the Multimedia Broadcast Multicast Service content in the resource allocation information of control channel, and the order that identifies in the resource allocation information is identical with the order of Multimedia Broadcast Multicast Service content in the protocol Data Unit.

Preferably, the load of above-mentioned protocol Data Unit can be made up of one or more SDU or SDU segmentation, and wherein, the data of SDU or SDU segmentation connect from one or more Multimedia Broadcast Multicast Service.

Preferably, said method also comprises: indication is used to identify the multicast service sign that Multimedia Broadcast Multicast Service connects in the resource allocation information of control channel, and the sequence consensus that the order of multicast service sign is connected with Multimedia Broadcast Multicast Service in the protocol Data Unit in the resource allocation information.

Preferably, above-mentioned protocol header comprises a multicast and broadcast compression MAC head.

Preferably, above-mentioned multicast and broadcast compression MAC head comprises that following indication territory one of at least: extension header indication territory, length field, reservation territory.

Further, when comprising extension header after the above-mentioned extension header indication territory indication multicast and broadcast compression MAC head, protocol header also comprises: one or more extension header.

Preferably, above-mentioned extension header comprises that following indication territory one of at least: head stops identification field, extension header type field, extension header entity, keeps the territory.

Preferably, when above-mentioned extension header was multicast and broadcast partition packetization extension header, if load from a Multimedia Broadcast Multicast Service content, then extension header was used for segmentation or packing are carried out in SDU or SDU segmentation from the Multimedia Broadcast Multicast Service content; If load connects from a Multimedia Broadcast Multicast Service, extension header is used for segmentation or packing are carried out in the SDU or the SDU segmentation that connect from described Multimedia Broadcast Multicast Service.

Preferably, above-mentioned multicast and broadcast partition packetization extension header comprises following indication territory: sequence number territory, segmentation control domain, a N-1 length field, a N territory stop sign, and wherein, N is the SDU of composition load or the quantity of SDU segmentation.

Further, when extension header is the multiplexing extension header of multicast and broadcast, if load is from one or more Multimedia Broadcast Multicast Service contents, and the Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and then extension header is used for packaging multiplexing is carried out in SDU or SDU segmentation from the Multimedia Broadcast Multicast Service content; If load connects from one or more Multimedia Broadcast Multicast Service, then extension header is used for packaging multiplexing is carried out in the SDU or the SDU segmentation that connect from Multimedia Broadcast Multicast Service.

Preferably, the multiplexing extension header of above-mentioned multicast and broadcast comprise following one of at least: the multiplexing expansion of one or more multicast and broadcasts chieftain piece, keep the territory, in the Multimedia Broadcast Multicast Service that the corresponding load of the multiplexing expansion of each multicast and broadcast chieftain piece comprises perhaps a Multimedia Broadcast Multicast Service connect.

Preferably, the multiplexing expansion of above-mentioned multicast and broadcast chieftain piece is used to describe in its corresponding Multimedia Broadcast Multicast Service the SDU that Multimedia Broadcast Multicast Service perhaps connects or the information of SDU segmentation, and the multiplexing expansion of multicast and broadcast chieftain piece comprises following indication territory: termination of a block identification field, segmentation control domain, sequence number territory, territory stop identifying, length field.

Preferably, for above-mentioned length field, the 1st the multiplexing expansion of multicast and broadcast chieftain piece comprises N1-1 length field, i the multiplexing expansion of multicast and broadcast chieftain piece comprises Ni length field in the multiplexing expansion of all the other multicast and broadcasts chieftain piece, wherein, N1 that be that load comprised with quantity the 1st multicast and broadcast multiplexing expansion pairing SDU of chieftain's piece or SDU segmentation, Ni is that load comprised and quantity i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.

Preferably, stop sign for above-mentioned territory, i the multiplexing expansion of multicast and broadcast chieftain piece comprises that Ni territory termination identifies, and wherein, Ni is that load comprised and quantity i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.

By above-mentioned at least one scheme of the present invention, when the transmission of protocol Data Unit, with Logic Channel Identifier (LCID) or multicast service sign (MSTID) or in protocol header, indicate, perhaps in the resource allocation information of control channel, carry, thereby solved the problem that does not propose as yet in the prior art at the indicating means of multicast and broadcast connection protocol data cell transmission, reduced the expense of Multimedia Broadcast Multicast Service signaling, realize the high efficiency of transmission of Multimedia Broadcast Multicast Service, improved the utilance of interface-free resources.

Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.

Description of drawings

Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is a MAC PDU form schematic diagram among the existing IEEE 802.16m;

Fig. 2 is a versatile MAC head form schematic diagram among the existing IEEE 802.16m;

Fig. 3 is MAC form schematic diagram of compression among the existing IEEE 802.16m;

Fig. 4 is a partition packetization extension header form schematic diagram among the existing IEEE 802.16m;

Fig. 5 is a segmentation extension header form schematic diagram among the existing IEEE 802.16m;

Fig. 6 is a multiplexing extension header form schematic diagram among the existing IEEE 802.16m;

Fig. 7 is a multiplexing expansion chieftain block format schematic diagram among the existing IEEE 802.16m;

Fig. 8 A is the schematic diagram of protocol header in first kind of form protocol header;

Fig. 8 B is the multiplexing expansion of an E-MBS chieftain block format schematic diagram in first kind of form protocol header;

Fig. 9 A is the form schematic diagram of protocol header in second kind of form protocol header;

Fig. 9 B is the multiplexing expansion of a protocol header E-MBS chieftain block format schematic diagram in second kind of form protocol header;

Figure 10 A is the form schematic diagram of protocol header in the third form protocol header;

Figure 10 B is the multiplexing expansion of a protocol header E-MBS chieftain block format schematic diagram in second kind of form protocol header;

Figure 11 is a protocol header form schematic diagram in the example one;

Figure 12 is a protocol header form schematic diagram in the example two;

Figure 13 is a protocol header form schematic diagram in the example three;

Figure 14 is a protocol header form schematic diagram in the example four;

Figure 15 is a protocol header form schematic diagram in the example five;

Figure 16 is a protocol header form schematic diagram in the example six;

Figure 17 is a protocol header form schematic diagram in the example seven;

Figure 18 is a protocol header form schematic diagram in the example eight;

Figure 19 is a protocol header form schematic diagram in the example nine;

Figure 20 is a protocol header form schematic diagram in the example ten;

Figure 21 is a protocol header form schematic diagram in the example 11;

Figure 22 is a protocol header form schematic diagram in the example 12;

Figure 23 is a protocol header form schematic diagram in the example 13;

Figure 24 is a protocol header form schematic diagram in the example 14.

Embodiment

Functional overview

In embodiments of the present invention, transmission at the multicast and broadcast protocol Data Unit, composition according to MAC PDU load, whether Logic Channel Identifier (LCID) or multicast service sign (MSTID) indicate in protocol header, and the difference of length of field etc., when the transmission of protocol Data Unit, with Logic Channel Identifier (LCID) or multicast service sign (MSTID) or in protocol header, indicate, perhaps in the resource allocation information of control channel, carry, provide respectively and can be applicable to simultaneously under two kinds of situations that load comprises one or more Multimedia Broadcast Multicast Service and connects (E-MBS Service), perhaps load comprises the protocol header of one or more Multimedia Broadcast Multicast Service contents (E-MBS Content), thereby provides method for the transmission indication of multicast and broadcast connection protocol data cell.

Under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.

Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.

According to the embodiment of the invention, provide a kind of transmission indicating means of multicast and broadcast connection protocol data cell.

In embodiments of the present invention, the base station sends the protocol Data Unit that multicast and broadcast connects to subscriber station.Described protocol Data Unit comprises protocol header, load, the data of business datum SDU or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents (E-MBSContent) in this load, perhaps connect (E-MBS Service) from one or more Multimedia Broadcast Multicast Service, different Multimedia Broadcast Multicast Service contents is distinguished with Logic Channel Identifier (LCID), and different Multimedia Broadcast Multicast Service connects with multicast service sign (MSTID) to be distinguished.

In embodiments of the present invention, when the SDU that forms this PDU load or SDU segmentation during from a plurality of Multimedia Broadcast Multicast Service content, corresponding a plurality of Logic Channel Identifier LCID carry in the protocol header of PDU; Perhaps, in embodiments of the present invention, when the SDU that forms this PDU load or SDU segmentation from a plurality of Multimedia Broadcast Multicast Service contents, when perhaps connecting from a plurality of Multimedia Broadcast Multicast Service, corresponding a plurality of Logic Channel Identifiers (LCID) or a plurality of multicast service sign (MSTID) are carried in the resource allocation information of control channel, and the order of a plurality of Logic Channel Identifier LCID or a plurality of multicast service sign (MSTID) is consistent with the order that a plurality of Multimedia Broadcast Multicast Service contents of forming this PDU load or Multimedia Broadcast Multicast Service connect in the resource allocation information.

Based on the different indicating means of above-mentioned Logic Channel Identifier (LCID) or multicast service sign (MSTID), the proposition of the embodiment of the invention correspondence protocol header form of the composition of three kinds of PDU, respectively this situation is described below.

The protocol header of first kind of form

When adopting the protocol header of this kind form, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and these one or more Multimedia Broadcast Multicast Service contents belong to a Multimedia Broadcast Multicast Service connection.Wherein, can in resource allocation information, indicate and be used to identify the multicast service sign that this Multimedia Broadcast Multicast Service connects at control channel, particularly, can in resource allocation information, carry this multicast service sign by explicitly, also can be by this multicast service sign of indication of other information implicit expression in the resource allocation information.When the data of SDU or SDU segmentation during from a plurality of Multimedia Broadcast Multicast Service content, a plurality of Logic Channel Identifiers (LCID) that are used for distinguishing different Multimedia Broadcast Multicast Service contents are indicated in protocol header.

This protocol header is in conjunction with compression MAC head and partition packetization extension header form among the existing IEEE 802.16m, and according to the multiplexing extension header of the E-MBS that has Logic Channel Identifier of the multiplexing extension header design of clean culture, a kind of multicast and broadcast protocol header that provides.

This multicast and broadcast protocol header comprises: an E-MBS compression MAC head may comprise one or more extension header; Wherein, E-MBS compression MAC head comprises and is not limited to following one or more indications territory: extension header is indicated territory EH, length field, reservation territory etc.The structure of this multicast and broadcast protocol header is shown in Fig. 8 A.

Particularly, extension header indication territory (EH) represents whether comprise extension header after this E-MBS compression MAC head, specifically can be explained by 1 bit, value according to this bit is indicated, for example, if this bit value is 1 then expression comprises extension header after this MAC head, otherwise then do not comprise;

Particularly, the length of the 1st MAC SDU or SDU segmentation particularly, can be 7 bits, 11 bits or other positive integer bits in the length field indication load;

Particularly, keep the end that the territory is positioned at the MAC head, be reserved place, its variable-length is used for this E-MBS compression MAC head of polishing so that the length of this E-MBS compression MAC head is the integral multiple of 8 bits.

Further, when the extension header indication territory in this E-MBS compression MAC head is 1 (when indicating this protocol header to comprise extension header), the multicast and broadcast protocol header contains one or more extension header simultaneously.Particularly, each extension header can but be not limited to comprise following one or more indications territory: head stops identification field, extension header type field, extension header entity etc.Wherein,

(1) head stops identification field and indicates whether this extension header is last extension header, can be indicated according to the value of this bit by the statement of 1 bit, for example, if value is that 1 this extension header of expression is last extension header, otherwise then is not;

(2) the extension header type field is represented this prolate-headed particular type, and extension header can be the E-MBS extension header of E-MBS partition packetization extension header, the multiplexing extension header of E-MBS or other types;

Further, when extension header is E-MBS partition packetization extension header, be used for segmentation or packing are carried out in SDU or SDU segmentation from a Multimedia Broadcast Multicast Service content, E-MBS partition packetization extension header comprises that following indication territory one of at least: sequence number territory, segmentation control domain, N (N is the number of SDU or SDU segmentation in a load) territory stop sign, N-1 length field, reservation territory etc.Wherein,

(1) sequence number of sequence number domain representation SDU or SDU segmentation specifically can be explained by 10 bits;

(2) the segmentation control domain is used to indicate the segmentation control information, can explain by 2 bits, for example, the load of 00 expression PDU is made up of one or more SDU, 01 expression load is by 0, one or more SDU add that (1 SDU can be divided into head section for the head section of certain SDU, aft section and medial section three parts) form, 10 expression loads add 0 by the aft section of certain SDU, one or more SDU form, 11 expression loads add one or more SDU by the aft section of certain SDU, add the head section of certain SDU and form, 11 also can represent to load only to be made up of the medial section of certain SDU;

(3) N-1 length field indicated in the load N-1 the MAC SDU except that the 1st or the length of SDU segmentation respectively, and length field can be 7 bits, 11 bits or other positive integer bits;

(4) N territory stops sign, at least exist a territory to stop sign (even without length field, the value that this moment, this territory stopped identifying is 1), first territory stops sign and is used for indicating the extension header entity whether to have length field, all the other N-1 territories stop sign and lay respectively at after N-1 the length field, be used to indicate this territory to stop whether also having length field after the sign, can explain by 1 bit, value is that 1 this territory of expression stops not having length field again after the sign, otherwise then have, when the number of SDU among the PDU or SDU segmentation is 1, do not have length field in the extension header entity, and have only a territory to stop sign, and it is 1 that this territory stops the sign value, and indication does not have length field thereafter, otherwise, it is 0 that first territory stops the sign value, and indication has length field thereafter;

(5) keep the territory and be positioned at the prolate-headed end of E-MBS partition packetization, be reserved place, its variable-length, being used for polishing E-MBS partition packetization expansion head length is the integral multiple of 8 bits.

Further, when extension header is the multiplexing extension header of E-MBS, be used for its data are carried out packaging multiplexing from the SDU or the SDU segmentation of one or more Multimedia Broadcast Multicast Service contents, the multiplexing extension header of E-MBS comprise following one of at least: one or M the multiplexing expansion of E-MBS chieftain piece, keep the territory, the specifying information of corresponding Multimedia Broadcast Multicast Service content (or logic channel) in the multiplexing expansion of each E-MBS chieftain piece indication load, the multiplexing expansion of each E-MBS chieftain piece comprises following indication territory: termination of a block identification field, the Logic Channel Identifier territory, the segmentation control domain, the sequence number territory, the territory stops sign, length field etc.; Fig. 8 B is under this situation, the multiplexing prolate-headed form schematic diagram of E-MBS, wherein,

(1) whether termination of a block identification field also has the multiplexing expansion of other E-MBS chieftain piece after indicating the multiplexing expansion of this E-MBS chieftain piece, can explain by 1 bit, value is that the multiplexing expansion of 1 this E-MBS of expression chieftain piece also has the multiplexing expansion of other E-MBS chieftain piece afterwards, otherwise does not then have;

(2) the Logic Channel Identifier territory indicate the multiplexing expansion of this E-MBS chieftain piece the logic channel of corresponding Multimedia Broadcast Multicast Service content, can be 8 bits, 4 bits or other positive integer bits, the multiplexing expansion of each E-MBS chieftain piece all contains the Logic Channel Identifier territory, when load only comprises a Multimedia Broadcast Multicast Service content, be that the multiplexing extension header of multicast and broadcast is when only comprising the multiplexing expansion of a multicast and broadcast chieftain piece, the special identifier of this Logic Channel Identifier territory for reserving represents that the multiplexing expansion of this multicast and broadcast chieftain piece does not have Logic Channel Identifier;

(3) sequence number domain representation load sequence number is explained by 10 bits;

(4) segmentation control domain indication segmentation control information, explain by 2 bits, 00 expression load is made up of one or more SDU, 01 expression load adds that by 0, one or more SDU the head section (1 SDU can be divided into head section, aft section and medial section three parts) of certain SDU forms, 10 expression loads add that by the aft section of certain SDU 0, one or more SDU form, 11 expression loads add that by the aft section of certain SDU the head section that one or more SDU add certain SDU forms, and 11 also can represent to load only to be made up of the medial section of certain SDU;

In (5) the 1st the multiplexing expansion of E-MBS chieftain pieces N1-1 length field arranged, indicate the length of N1-1 of holding in the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of this E-MBS chieftain piece except that the 1st (N1 be the SDU that holds in the Multimedia Broadcast Multicast Service of the 1st the multiplexing expansion of multicast and broadcast chieftain piece correspondence or the quantity of SDU segmentation) SDU or SDU segmentation respectively, indicate by the length field of compressing in the MAC head with the length that holds the 1st SDU or SDU segmentation in the 1st the corresponding Multimedia Broadcast Multicast Service of E-MBS multiplexing expansion chieftain's piece; For the multiplexing expansion of all the other M-1 E-MBS chieftain piece, Ni (Ni be the SDU that holds in the Multimedia Broadcast Multicast Service of i the multiplexing chieftain of expansion of multicast and broadcast piece correspondence or the quantity of SDU segmentation) length field arranged in the multiplexing expansion of i E-MBS chieftain piece, indicate the length that holds Ni SDU or SDU segmentation in i the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of E-MBS chieftain piece respectively, length field can be 7 bits, 11 bits or other positive integer bits;

There is N1 territory to stop sign in (6) the 1st the multiplexing expansion of E-MBS chieftain pieces, wherein, the 1st territory stops whether comprising length field in the multiplexing expansion of sign this multicast and broadcast of the indication chieftain piece, all the other N1-1 territories stop sign and lay respectively at after N1-1 the length field, are used to indicate this territory to stop whether also having length field after the sign; For the multiplexing expansion of all the other M-1 multicast and broadcast chieftain piece, i the multiplexing expansion of multicast and broadcast chieftain piece comprises that Ni territory stops sign, lays respectively at after Ni the length field, is used to indicate this territory to stop whether also having length field after the sign; It is that 0 this territory of expression stops also having length field after the sign that the territory stops the sign value, otherwise does not then have;

(7) keep the territory and be positioned at the multiplexing prolate-headed end of E-MBS, be reserved place, its variable-length is used for the integral multiple of the multiplexing expansion of polishing E-MBS chieftain piece for long 8 bits.

The protocol header of second kind of form

When adopting the protocol header of this kind form, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and these one or more Multimedia Broadcast Multicast Service contents belong to a Multimedia Broadcast Multicast Service connection.Wherein, can in the resource allocation information of control channel, indicate and be used to identify the multicast service sign that above-mentioned Multimedia Broadcast Multicast Service connects, particularly, this multicast service sign can be carried in the resource allocation information by explicitly, also can be by this multicast service sign of indication of other information implicit expression in the resource allocation information.When the data of SDU that forms the protocol Data Unit load or SDU segmentation during from a plurality of Multimedia Broadcast Multicast Service content, a plurality of Logic Channel Identifiers (LCID) that are used for distinguishing different Multimedia Broadcast Multicast Service contents are indicated in protocol header.

This protocol header is in conjunction with versatile MAC head, partition packetization extension header and multiplexing extension header form among the existing IEEE 802.16m, replaces traffic stream identifier with Logic Channel Identifier, a kind of multicast and broadcast protocol header that provides.

This multicast and broadcast protocol header comprises: an E-MBS versatile MAC head may comprise one or more extension header; Wherein, E-MBS versatile MAC head comprises that following indication territory one of at least: Logic Channel Identifier territory, extension header indication territory EH, a length field and keep territory etc.The structure of this multicast and broadcast protocol header is shown in Fig. 9 A.

Particularly, the logic channel of the 1st E-MBS content correspondence in the Logic Channel Identifier domain representation load in this E-MBS versatile MAC head, can be 4 bits, 8 bits or other positive integer bits, when load only comprises a Multimedia Broadcast Multicast Service content, the special identifier of Logic Channel Identifier territory in this E-MBS versatile MAC head for reserving represents that this E-MBS versatile MAC head does not have Logic Channel Identifier;

Particularly, extension header indication territory EH in this E-MBS versatile MAC head represents whether comprise extension header after this E-MBS versatile MAC head, specifically can explain by 1 bit, value by this bit is indicated, for example, if value is 1 then comprises extension header after this MAC head of expression, otherwise then do not comprise;

Particularly, the length of the 1st SDU or SDU segmentation particularly, can be 7 bits, 11 bits or other positive integer bits in length field in this E-MBS versatile MAC head indication load;

Particularly, the reservation territory in this E-MBS versatile MAC head is positioned at the end of MAC head, is reserved place, and its variable-length is used for this E-MBS versatile MAC head of polishing so that the length of this E-MBS versatile MAC head is the integral multiple of 8 bits.

Further, when the indication of the extension header in this E-MBS versatile MAC head territory EH was 1 (promptly indicating this protocol header to comprise extension header), this multicast and broadcast protocol header comprised one or more E-MBS extension header simultaneously.Particularly, each E-MBS extension header comprises that following indication territory one of at least: head stops identification field, extension header type field, extension header entity etc.Wherein,

(2) the extension header type field is represented this prolate-headed particular type, and extension header can be the E-MBS extension header of E-MBS partition packetization extension header, the multiplexing extension header of E-MBS or other types.

Further, when extension header is E-MBS partition packetization extension header, be used for segmentation or packing are carried out in SDU or SDU segmentation from a Multimedia Broadcast Multicast Service content, E-MBS partition packetization extension header comprises that following indication territory one of at least: sequence number territory, segmentation control domain, N (N for greater than 1 integer, the number of SDU or SDU segmentation among a expression PDU) territory stops sign, a N-1 length field and reservation territory etc.; Wherein,

(1) sequence number domain representation load sequence number specifically can be explained by 10 bits;

(2) segmentation control domain indication segmentation control information, can explain by 2 bits, for example 00 expression load is made up of one or more SDU, 01 expression load adds that by 0, one or more SDU the head section (SDU can be divided into head section, aft section and medial section three parts) of certain SDU forms, 10 expression loads add that by the aft section of certain SDU 0, one or more SDU form, 11 expression loads add that by the aft section of certain SDU the head section that one or more SDU add certain SDU forms, and 11 also can represent to load only to be made up of the medial section of certain SDU;

(3) N territory stops sign, at least exist a territory to stop sign (even without length field, the value that this moment, this territory stopped identifying is 1), first territory stops sign and is used to indicate the extension header entity whether to have length field, all the other N-1 territories stop sign and lay respectively at after N-1 the length field, be used to indicate this territory to stop whether also having length field after the sign, can explain by 1 bit, value is that 1 this territory of expression stops not having length field again after the sign, otherwise then have,, then do not have length field in the extension header entity if the number of SDU or SDU segmentation is 1 among the PDU, and have only a territory to stop sign, and it is 1 that this territory stops the sign value, and indication does not have length field thereafter, in other cases, it is 0 that first territory stops the sign value, and indication has length field thereafter;

(4) N-1 length field indicated in the load N-1 the SDU except that the 1st or the length of SDU segmentation respectively, and length field can be 7 bits, 11 bits or other positive integer bits;

Further, when extension header is the multiplexing extension header of E-MBS, be used for its data are carried out packaging multiplexing from the SDU or the SDU segmentation of one or more Multimedia Broadcast Multicast Service contents, the multiplexing extension header of E-MBS comprise following one of at least: one or M the multiplexing expansion of E-MBS chieftain piece, keep the territory, the specifying information of corresponding Multimedia Broadcast Multicast Service content (or logic channel) in each E-MBS expansion chieftain piece indication load, comprise following indication territory: termination of a block identification field, Logic Channel Identifier territory, segmentation control domain, sequence number territory, territory stop sign, length field etc.Fig. 9 B is under this situation, the multiplexing prolate-headed form schematic diagram of E-MBS, wherein,

(1) whether termination of a block identification field also has other multiplexing expansion chieftain pieces after indicating this multiplexing expansion chieftain piece, can be by the statement of 1 bit, and value is that 1 this multiplexing expansion chieftain piece of expression also has other multiplexing expansion chieftain pieces afterwards, otherwise does not then have;

(2) the Logic Channel Identifier territory indicate the multiplexing expansion of this E-MBS chieftain piece the logic channel of corresponding Multimedia Broadcast Multicast Service content, the multiplexing expansion of the 1st E-MBS chieftain piece do not comprise its Logic Channel Identifier of corresponding E-MBS content, and indicate by the Logic Channel Identifier in the E-MBS versatile MAC head, the length of Logic Channel Identifier can be 8 bits, 4 bits or other positive integer bits;

(3) sequence number of sequence number domain representation load is explained by 10 bits;

(4) segmentation control domain indication segmentation control information, explain by 2 bits, 00 expression load is made up of one or more SDU, 01 expression load adds that by 0, one or more SDU the head section (SDU can be divided into head section, aft section and medial section three parts) of certain SDU forms, 10 expression loads add that by the aft section of certain SDU 0, one or more SDU form, 11 expression loads add that by the aft section of certain SDU the head section that one or more SDU add certain SDU forms, and 11 also can represent to load only to be made up of the medial section of certain SDU;

In (5) the 1st the multiplexing expansion of E-MBS chieftain pieces N1-1 length field arranged, indicate the length of N1-1 of holding in the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of this E-MBS chieftain piece except that the 1st (N1 be the SDU that holds in the Multimedia Broadcast Multicast Service of the 1st the multiplexing chieftain of expansion of multicast and broadcast piece correspondence or the quantity of SDU segmentation) SDU or SDU segmentation respectively, indicate by the length field in the versatile MAC head with the 1st the multiplexing length that holds the 1st SDU or SDU segmentation in the corresponding Multimedia Broadcast Multicast Service of chieftain's piece of expanding of E-MBS; For the multiplexing expansion of all the other M-1 E-MBS chieftain piece, Ni (Ni be the SDU that holds in the Multimedia Broadcast Multicast Service of i the multiplexing chieftain of expansion of multicast and broadcast piece correspondence or the quantity of SDU segmentation) length field arranged in the multiplexing expansion of i E-MBS chieftain piece, indicate the length that holds Ni SDU or SDU segmentation in i the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of E-MBS chieftain piece respectively, length field can be 7 bits, 11 bits or other positive integer bits;

There is N1 territory to stop sign in (6) the 1st the multiplexing expansion of E-MBS chieftain pieces, wherein, the 1st territory stops whether comprising length field in the multiplexing expansion of sign this multicast and broadcast of the indication chieftain piece, all the other N1-1 territories stop sign and lay respectively at after N1-1 the length field, are used to indicate this territory to stop whether also having length field after the sign; For the multiplexing expansion of all the other M-1 E-MBS chieftain piece, there be Ni territory to stop sign in i the multiplexing expansion of the E-MBS chieftain piece,, lay respectively at after Ni the length field, be used to indicate this territory to stop whether also having length field after the sign; It is that 0 this territory of expression stops also having length field after the sign that the territory stops the sign value, otherwise does not then have;

(7) keep the territory and be positioned at the multiplexing prolate-headed end of E-MBS, be reserved place, its variable-length, being used for the multiplexing expansion of polishing E-MBS chieftain block length is the integral multiple of 8 bits.

The protocol header of the third form

When adopting the protocol header of this kind form, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and these one or more Multimedia Broadcast Multicast Service contents belong to a Multimedia Broadcast Multicast Service and connect, and SDU or the SDU segmentation of perhaps forming multicast and broadcast protocol Data Unit load connect from one or more Multimedia Broadcast Multicast Service.Wherein, be used for distinguishing the Logic Channel Identifier (LCID) of different Multimedia Broadcast Multicast Service contents or be used to distinguish the multicast service sign (MSTID) that different Multimedia Broadcast Multicast Service connect and carry at the resource allocation Indication message, particularly, this multicast service sign or Logic Channel Identifier can be carried in the resource allocation information by explicitly, also can be by indication this multicast service sign or Logic Channel Identifier of other information implicit expression in the resource allocation information, and in protocol header, not indicating, and the sequence consensus that SDU or the pairing Multimedia Broadcast Multicast Service content of SDU segmentation or Multimedia Broadcast Multicast Service are connected in Logic Channel Identifier (LCID) or multicast service sign (MSTID) order in the resource allocation Indication message and the protocol Data Unit load.

This protocol header is in conjunction with compression MAC head and partition packetization extension header form among the existing IEEE 802.16m, and according to the multiplexing extension header design of clean culture not with the multiplexing extension header of the E-MBS of Logic Channel Identifier, a kind of multicast and broadcast protocol header that provides.

This multicast and broadcast protocol header comprises: an E-MBS compression MAC head may comprise one or more extension header; Wherein, this E-MBS compression MAC head includes but not limited to following one or more indications territory: extension header is indicated territory EH, a length field and is kept territory etc.The structure of this multicast and broadcast protocol header shown in Figure 10 A,

Particularly, the extension header indication territory EH of this E-MBS compression MAC head is illustrated in the protocol header of PDU whether comprise extension header after this MAC head, specifically can explain by 1 bit, different values by this bit are indicated different states, for example, afterwards comprise extension header if this bit value is 1 this MAC head of expression, otherwise then do not comprise;

Particularly, the length of the 1st SDU or SDU segmentation is specifically as follows 7 bits, 11 bits or other positive integer bits in the length field indication load in this E-MBS compression MAC head;

Particularly, the reservation territory in this E-MBS compression MAC head is positioned at the end of MAC head, is reserved place, and its variable-length is used for this E-MBS compression MAC head of polishing so that the length of this E-MBS compression MAC head is the integral multiple of 8 bits.

Further, when the extension header indication territory EH in this E-MBS compression MAC head was 1, then this multicast and broadcast protocol header comprised one or more extension header simultaneously.Particularly, each extension header comprises that following indication territory is one of at least: head stops identification field, extension header type field, extension header entity etc., wherein,

(1) head stops identification field and indicates whether this extension header is last extension header, can be indicated according to the value of this bit by the statement of 1 bit, and for example, value is that 1 this extension header of expression is last extension header, otherwise then is not;

Further, when extension header is E-MBS partition packetization extension header, be used for segmentation or packing are carried out in SDU or SDU segmentation from a Multimedia Broadcast Multicast Service content, E-MBS partition packetization extension header comprises that following indication territory one of at least: sequence number territory, segmentation control domain, N (N for greater than 1 integer, the number of an expression MAC SDU or SDU segmentation) territory stops sign, length field, reservation territory etc.Wherein,

(2) segmentation control domain indication segmentation control information, can explain by 2 bits, 00 expression load is made up of one or more SDU, 01 expression load adds that by 0, one or more SDU the head section (SDU can be divided into head section, aft section and medial section three parts) of certain SDU forms, 10 expression loads add that by the aft section of certain SDU 0, one or more SDU form, 11 expression loads add that by the aft section of certain SDU the head section that one or more SDU add certain SDU forms, and 11 also can represent to load only to be made up of the medial section of certain SDU;

(3) length field is N-1 (N represents the number of MAC SDU or SDU segmentation), the length of N-1 SDU except that the 1st or SDU segmentation in the indication load respectively, and length field can be 7 bits, 11 bits or other positive integer bits;

(4) territory stops being designated N, at least exist a territory to stop sign (even without length field, the value that this moment, this territory stopped identifying is 1), first territory stops sign and is used to indicate the extension header entity whether to have length field, all the other N-1 territories stop sign and lay respectively at (promptly all existing a territory termination to identify) after N-1 the length field after each length field of N-1 length field, be used to indicate this territory to stop whether also having length field after the sign, explain by 1 bit, value is that 1 this territory of expression stops not having length field again after the sign, otherwise then have,, then do not have length field in the extension header entity if the number of SDU or SDU segmentation is 1 among the PDU, and have only a territory to stop sign, and it is 1 that this territory stops the sign value, and indication does not have length field thereafter, otherwise, it is 0 that first territory stops the sign value, and indication has length field thereafter;

Further, when extension header is the multiplexing extension header of E-MBS, be used for its data are carried out packaging multiplexing from the SDU or the SDU segmentation of one or more Multimedia Broadcast Multicast Service contents, the multiplexing extension header of E-MBS comprise following one of at least: one or M the multiplexing expansion of E-MBS chieftain piece, keep the territory, the specifying information that connects of Multimedia Broadcast Multicast Service perhaps in the corresponding Multimedia Broadcast Multicast Service in the multiplexing expansion of each E-MBS chieftain piece indication load, the multiplexing expansion of each E-MBS chieftain piece comprises following indication territory: termination of a block identification field, the segmentation control domain, the sequence number territory, the territory stops sign, length field etc.Figure 10 B is the multiplexing prolate-headed form schematic diagram of E-MBS under this situation, wherein,

(2) sequence number of sequence number domain representation load is explained by 10 bits;

(3) segmentation control domain indication segmentation control information, explain by 2 bits, 00 expression load is made up of one or more SDU, 01 expression load adds that by 0, one or more SDU the head section (SDU can be divided into head section, aft section and medial section three parts) of certain SDU forms, 10 expression loads add that by the aft section of certain SDU 0, one or more SDU form, 11 expression loads add that by the aft section of certain SDU the head section that one or more SDU add certain SDU forms, and 11 also can represent to load only to be made up of the medial section of certain SDU;

In (4) the 1st the multiplexing expansion of E-MBS chieftain pieces N1-1 length field arranged, indicate in the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of this E-MBS chieftain piece Multimedia Broadcast Multicast Service perhaps to connect down N1-1 the SDU except that the 1st or the length of SDU segmentation respectively, with in the 1st the corresponding Multimedia Broadcast Multicast Service of E-MBS multiplexing expansion chieftain's piece perhaps the length of Multimedia Broadcast Multicast Service following the 1st SDU of connection or SDU segmentation indicate by the length field that multicast and broadcast compresses in the MAC head; The multiplexing expansion of all the other M-1 E-MBS chieftain piece, in i the multiplexing expansion of the E-MBS chieftain piece Ni length field arranged, indicate in the corresponding Multimedia Broadcast Multicast Service of the multiplexing expansion of i E-MBS chieftain piece Multimedia Broadcast Multicast Service perhaps to connect the length of following Ni SDU or SDU segmentation respectively, length field can be 7 bits, 11 bits or other positive integer bits;

There is N1 territory to stop sign in (5) the 1st the multiplexing expansion of E-MBS chieftain pieces, wherein, the 1st territory stops whether comprising length field in the multiplexing expansion of sign this multicast and broadcast of the indication chieftain piece, all the other N1-1 territories stop sign and lay respectively at after N1-1 the length field, are used to indicate this territory to stop whether also having length field after the sign; For the multiplexing expansion of all the other M-1 E-MBS chieftain piece, there be Ni territory to stop sign in i the multiplexing expansion of the E-MBS chieftain piece, lay respectively at after Ni the length field, be used to indicate this territory to stop whether also having length field after the sign; It is that 0 this territory of expression stops also having length field after the sign that the territory stops the sign value, otherwise does not then have;

(6) keep the territory and be positioned at the multiplexing prolate-headed end of E-MBS, be reserved place, its variable-length, being used for the multiplexing expansion of polishing E-MBS chieftain block length is the integral multiple of 8 bits.

Below by specific embodiment the technical scheme that the embodiment of the invention provides is described.

Embodiment one

In the present embodiment, SDU or the SDU segmentation of forming multicast and broadcast protocol Data Unit load connect (E-MBS Service) from a Multimedia Broadcast Multicast Service content (E-MBS Content) or a Multimedia Broadcast Multicast Service, and length field is 7 bits in the protocol header.

When protocol Data Unit sends, can adopt the protocol header of above-mentioned first kind of form or the protocol header of the third form, particularly, the structure of this protocol header is as shown in figure 11.Wherein, the extension header type field in the multicast and broadcast protocol header is designated as E-MBS partition packetization extension header.

It is pointed out that since load from the Multimedia Broadcast Multicast Service perhaps Multimedia Broadcast Multicast Service connect, so need not Logic Channel Identifier (LCID) or multicast service sign (MSTID) in the protocol header.In addition, form the 1st SDU or the SDU segmentation of load, its length is by the length field indication of 7 bits in the MAC head, the length of individual (N is the integer greater than 1, the segments of expression MAC SDU or SDU) SDU of the 2nd～N or SDU segmentation is by the length field indication of N-1 in the partition packetization extension header 7 bits.

Embodiment two

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from a Multimedia Broadcast Multicast Service content, and length field is 7 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of above-mentioned second kind of form, promptly in conjunction with the multicast and broadcast protocol header of versatile MAC head among the existing IEEE 802.16m and partition packetization extension header form, specifically as shown in figure 12.Wherein, the extension header type field in the multicast and broadcast protocol header is designated as E-MBS partition packetization extension header.

It is pointed out that because load from a multicast and broadcast content, so need not Logic Channel Identifier (LCID) in the protocol header, at this moment, the Logic Channel Identifier territory of 4 bits is at this moment as nonsensical reservation territory in the MAC head.In addition, form the 1st SDU or the SDU segmentation of load, its length is by the length field indication of 7 bits in the MAC head, the length of individual (N is the integer greater than 1, the segments of expression MAC SDU or SDU) SDU of the 2nd～N or SDU segmentation is by the length field indication of N-1 in the partition packetization extension header 7 bits.

Embodiment three

In the present embodiment, SDU or the SDU segmentation of forming multicast and broadcast protocol Data Unit load connect (E-MBS Service) from a Multimedia Broadcast Multicast Service content (E-MBS Content) or a Multimedia Broadcast Multicast Service, and length field is 11 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of above-mentioned first kind of form or the protocol header of the third form, the structure of this multicast and broadcast protocol header is as shown in figure 13.Wherein, the extension header type field in the multicast and broadcast protocol header is designated as E-MBS partition packetization extension header.

It is pointed out that since load from the Multimedia Broadcast Multicast Service perhaps Multimedia Broadcast Multicast Service connect, so need not Logic Channel Identifier (LCID) or multicast service sign (MSTID) in the protocol header.In addition, form the 1st SDU or the SDU segmentation of load, its length is by the length field indication of 11 bits in the MAC head, the length of individual (N is the integer greater than 1, the segments of expression MAC SDU or SDU) SDU of the 2nd～N or SDU segmentation is by the length field indication of N-1 in the partition packetization extension header 11 bits.

Embodiment four

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from a Multimedia Broadcast Multicast Service content, and length field is 11 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of above-mentioned second kind of form, promptly in conjunction with the multicast and broadcast protocol header of versatile MAC head among the existing IEEE 802.16m and partition packetization extension header form, the structure of this multicast and broadcast protocol header is as shown in figure 14.Wherein, the extension header type field in the multicast and broadcast protocol header is designated as E-MBS partition packetization extension header.

It is pointed out that because load from a multicast and broadcast content, so need not Logic Channel Identifier (LCID) in the protocol header, at this moment, the Logic Channel Identifier territory of 4 bits is at this moment as nonsensical reservation territory in the MAC head.In addition, form the 1st SDU or the SDU segmentation of load, its length is by the length field indication of 11 bits in the MAC head, the length of individual (N is the integer greater than 1, the segments of expression MAC SDU or SDU) SDU of the 2nd～N or SDU segmentation is by the length field indication of N-1 in the partition packetization extension header 11 bits.

Embodiment five

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and length field is that 7 bits, logic channel territory are 8 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of above-mentioned first kind of form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with the multiplexing prolate-headed multicast and broadcast protocol header of the E-MBS that has Logic Channel Identifier (LCID) of compressing the MAC head among the existing IEEE 802.16m and designing according to the multiplexing extension header of clean culture, and the structure of this multicast and broadcast protocol header as shown in figure 15.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 15 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 15 B.

Especially, when the SDU that forms multicast and broadcast protocol Data Unit load or SDU segmentation during from Multimedia Broadcast Multicast Service content only, the multiplexing extension header of E-MBS only comprises the multiplexing expansion of an E-MBS chieftain piece, and this protocol header does not comprise Logic Channel Identifier.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, the Logic Channel Identifier LCID that all comprises one 8 bit in the multiplexing expansion of each E-MBS chieftain piece, comprise and the 1st the multiplexing expansion of the E-MBS that the Multimedia Broadcast Multicast Service content is corresponding chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service, holds the length field indication of the length of the 1st SDU or SDU segmentation by 7 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment six

When protocol Data Unit sends, adopt the protocol header of second kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing in conjunction with versatile MAC head among the existing IEEE802.16m and and multiplexing extension header form, with the multicast and broadcast protocol header of Logic Channel Identifier (LCID) replacement traffic stream identifier, the structure of this multicast and broadcast protocol header as shown in figure 16.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 16 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 16 B.

Especially, when the SDU that forms multicast and broadcast protocol Data Unit load or SDU segmentation during from a Multimedia Broadcast Multicast Service content, the multiplexing extension header of E-MBS only comprises the multiplexing expansion of an E-MBS chieftain piece, and this protocol header does not comprise Logic Channel Identifier.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Logic Channel Identifier LCID of 8 bits, the 1st the multiplexing expansion of E-MBS chieftain piece also do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service simultaneously, holds the length field indication of the length of the 1st SDU or SDU segmentation by 7 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment seven

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and length field is that 11 bits, logic channel territory are 8 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of first kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with the multiplexing prolate-headed multicast and broadcast protocol header of the E-MBS that has Logic Channel Identifier (LCID) of compressing the MAC head among the existing IEEE802.16m and designing according to the multiplexing extension header of clean culture, and the structure of this multicast and broadcast protocol header as shown in figure 17.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 17 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 17 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, the Logic Channel Identifier LCID that all comprises one 8 bit in the multiplexing expansion of each E-MBS chieftain piece, comprise and the 1st the multiplexing expansion of the E-MBS that the Multimedia Broadcast Multicast Service content is corresponding chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service, holds the length field indication of the length of the 1st SDU or SDU segmentation by 11 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment eight

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, length field is that 11 bits, logic channel territory are 8 bits in the protocol header, when protocol Data Unit sends.

When protocol Data Unit sends, adopt the protocol header of second kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with versatile MAC head among the existing IEEE802.16m and multiplexing extension header form, with the multicast and broadcast protocol header of Logic Channel Identifier (LCID) replacement traffic stream identifier, the structure of this multicast and broadcast protocol header as shown in figure 18.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 18 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 18 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Logic Channel Identifier (LCID) of 8 bits, the 1st the multiplexing expansion of E-MBS chieftain piece also do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service simultaneously, holds the length field indication of the length of the 1st SDU or SDU segmentation by 11 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment nine

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and length field is that 7 bits, logic channel territory are 4 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of first kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with the multiplexing prolate-headed multicast and broadcast protocol header of the E-MBS that has Logic Channel Identifier (LCID) of compressing the MAC head among the existing IEEE802.16m and designing according to the multiplexing extension header of clean culture, and the structure of this multicast and broadcast protocol header as shown in figure 19.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 19 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 19 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, the Logic Channel Identifier (LCID) that all comprises one 4 bit in the multiplexing expansion of each E-MBS chieftain piece, comprise and the 1st the multiplexing expansion of the E-MBS that the Multimedia Broadcast Multicast Service content is corresponding chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service, holds the length field indication of the length of the 1st SDU or SDU segmentation by 7 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment ten

When protocol Data Unit sends, adopt the protocol header of second kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with versatile MAC head among the existing IEEE802.16m and multiplexing extension header form, with the multicast and broadcast protocol header of Logic Channel Identifier (LCID) replacement traffic stream identifier, the structure of this multicast and broadcast protocol header as shown in figure 20.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 20 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 20 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Logic Channel Identifier (LCID) of 4 bits, the 1st the multiplexing expansion of E-MBS chieftain piece also do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service simultaneously, holds the length field indication of the length of the 1st SDU or SDU segmentation by 7 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment 11

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and length field is that 11 bits, logic channel territory are 4 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of first kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with the multiplexing prolate-headed multicast and broadcast protocol header of the E-MBS that has Logic Channel Identifier (LCID) of compressing the MAC head among the existing IEEE802.16m and designing according to the multiplexing extension header of clean culture, and the structure of this multicast and broadcast protocol header as shown in figure 21.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 21 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 21 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, the Logic Channel Identifier (LCID) that all comprises one 4 bit in the multiplexing expansion of each E-MBS chieftain piece, comprise and the 1st the multiplexing expansion of the E-MBS that the Multimedia Broadcast Multicast Service content is corresponding chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service, holds the length field indication of the length of the 1st SDU or SDU segmentation by 11 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment 12

When protocol Data Unit sends, adopt the protocol header of second kind of above-mentioned form, being about to Logic Channel Identifier (LCID) indicates in protocol header, employing is in conjunction with versatile MAC head among the existing IEEE802.16m and multiplexing extension header form, with the multicast and broadcast protocol header of Logic Channel Identifier (LCID) replacement traffic stream identifier, the structure of this multicast and broadcast protocol header as shown in figure 22.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 22 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 22 B.

It is to be noted in addition, when load during from a plurality of Multimedia Broadcast Multicast Service content, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the 1st the multiplexing expansion of E-MBS chieftain piece do not comprise the Logic Channel Identifier (LCID) of 4 bits, the 1st the multiplexing expansion of E-MBS chieftain piece also do not comprise the Length Indication that holds the 1st SDU or SDU segmentation in this Multimedia Broadcast Multicast Service simultaneously, holds the length field indication of the length of the 1st SDU or SDU segmentation by 11 bits in the extension header in the 1st Multimedia Broadcast Multicast Service.

Embodiment 13

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, SDU or the SDU segmentation of perhaps forming multicast and broadcast protocol Data Unit load connect from one or more Multimedia Broadcast Multicast Service, and length field is 7 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of the third above-mentioned form, promptly the indication multicast service identifies (MSTID) or Logic Channel Identifier (LCID) in the resource allocation information of control channel, particularly, this multicast service sign can be carried in the resource allocation information by explicitly, also can be by this multicast service sign of indication of other information implicit expression in the resource allocation information, and in the order of the Logic Channel Identifier of in resource allocation information, indicating (LCID) or multicast service sign (MSTID) and the load in the multiplexing Multimedia Broadcast Multicast Service perhaps multiplexing Multimedia Broadcast Multicast Service connect correspondingly one by one, the structure of this multicast and broadcast protocol header is as shown in figure 23.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 23 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 23 B.

Especially, when the SDU that forms multicast and broadcast protocol Data Unit load or SDU segmentation from a Multimedia Broadcast Multicast Service content, when perhaps connecting from a Multimedia Broadcast Multicast Service, the multiplexing extension header of E-MBS only comprises the multiplexing expansion of an E-MBS chieftain piece.

It is to be noted in addition, when loading from a plurality of Multimedia Broadcast Multicast Service contents, when perhaps connecting from a plurality of Multimedia Broadcast Multicast Service, do not comprise Logic Channel Identifier (LCID) or multicast service sign (MSTID) in the multiplexing expansion of each E-MBS chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the multiplexing expansion of the 1st E-MBS chieftain piece does not comprise in this Multimedia Broadcast Multicast Service the Length Indication that this Multimedia Broadcast Multicast Service perhaps connects following the 1st SDU or SDU segmentation, in the 1st Multimedia Broadcast Multicast Service perhaps the 1st Multimedia Broadcast Multicast Service length of connecting following the 1st SDU or SDU segmentation indicate by the length field of 7 bits in the extension header.

Embodiment 14

In the present embodiment, the SDU of composition multicast and broadcast protocol Data Unit load or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, SDU or the SDU segmentation of perhaps forming multicast and broadcast protocol Data Unit load connect from one or more Multimedia Broadcast Multicast Service, and length field is 11 bits in the protocol header.

When protocol Data Unit sends, adopt the protocol header of the third above-mentioned form, being about to Logic Channel Identifier (LCID) or multicast service sign (MSTID) carries in the resource allocation information of control channel, and in the order of Logic Channel Identifier in resource allocation information (LCID) or multicast service sign (MSTID) and the load in the multiplexing Multimedia Broadcast Multicast Service perhaps multiplexing Multimedia Broadcast Multicast Service connect correspondingly one by one, the structure of this multicast and broadcast protocol header is as shown in figure 24.

Wherein, the extension header type field in the multicast and broadcast protocol header is designated as the multiplexing extension header of E-MBS, as Figure 24 A.Perhaps, do not comprise the extension header type field in the extension header, the extension header entity is the multiplexing extension header of E-MBS, as Figure 24 B.

It is to be noted in addition, when loading from a plurality of Multimedia Broadcast Multicast Service contents, when perhaps connecting from a plurality of Multimedia Broadcast Multicast Service, do not comprise Logic Channel Identifier (LCID) or multicast service sign (MSTID) in the multiplexing expansion of each E-MBS chieftain piece, what individual with the 2nd～M (M is the number of the multiplexing expansion of E-MBS chieftain piece in the extension header) the multiplexing expansion of E-MBS chieftain piece was different is, the multiplexing expansion of the 1st E-MBS chieftain piece does not comprise in this Multimedia Broadcast Multicast Service the Length Indication that Multimedia Broadcast Multicast Service perhaps connects following the 1st SDU or SDU segmentation, in the 1st Multimedia Broadcast Multicast Service perhaps the 1st Multimedia Broadcast Multicast Service length of connecting following the 1st SDU or SDU segmentation indicate by the length field of 11 bits in the extension header.

As mentioned above, the technical scheme that provides by the embodiment of the invention, when sending multicast and broadcast connection protocol data cell, with Logic Channel Identifier (LCID) or multicast service sign (MSTID) or in protocol header, indicate, perhaps in the resource allocation information of control channel, carry, and,, provide several unified MAC layers form to select for being applicable to the transmission of multicast and broadcast connection protocol data cell by design to multicast and broadcast connection protocol head form under the different situations.The protocol Data Unit designed at the multicast and broadcast connection performance sends indicating means, for the transmission that is exclusively used in the protocol Data Unit that multicast and broadcast connects provides indicating mode flexibly, reduced the expense of multicast and broadcast connection signaling, realized that multicast and broadcast connects professional high efficiency of transmission, improved the utilance of interface-free resources.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the transmission indicating means of a multicast and broadcast connection protocol data cell is characterized in that, comprising:

The base station sends the protocol Data Unit that multicast and broadcast connects to subscriber station, and wherein, described protocol Data Unit comprises: protocol header, load.

2. method according to claim 1, it is characterized in that, the load of described protocol Data Unit is made up of one or more Service Data Unit SDU or SDU segmentation, the data of described SDU or SDU segmentation are from one or more Multimedia Broadcast Multicast Service contents, and described a plurality of Multimedia Broadcast Multicast Service contents belong to a Multimedia Broadcast Multicast Service and connect.

3. method according to claim 2 is characterized in that, when the data of described SDU or SDU segmentation during from a plurality of Multimedia Broadcast Multicast Service content, described method also comprises:

Carry the sign that is used to indicate described Multimedia Broadcast Multicast Service content in the protocol header of described protocol Data Unit, indication is used to identify the multicast service sign that described Multimedia Broadcast Multicast Service connects in the resource allocation information of control channel.

4. method according to claim 3 is characterized in that, described protocol header comprises a multicast and broadcast compression MAC head.

5. method according to claim 4, it is characterized in that described multicast and broadcast compression MAC head comprises that following indication territory one of at least: indicate whether to comprise prolate-headed extension header indication territory, indication in the described protocol header and form the length field of the length of the SDU of described load or SDU segmentation, keep the territory.

6. method according to claim 3 is characterized in that, described protocol header comprises a multicast and broadcast versatile MAC head.

7. method according to claim 6, it is characterized in that described multicast and broadcast versatile MAC head comprises that following indication territory one of at least: be used for indicating identification field, the described protocol header of indication of Multimedia Broadcast Multicast Service content whether to comprise prolate-headed extension header indication territory, indication and form the length field of the length of the SDU of described load or SDU segmentation, keep the territory.

8. method according to claim 7, it is characterized in that, when the data of SDU that forms described load or SDU segmentation during from a Multimedia Broadcast Multicast Service content, the described special identifier of identification field for reserving that is used to indicate the Multimedia Broadcast Multicast Service content indicates described multicast and broadcast versatile MAC head to be not used in the sign of each Multimedia Broadcast Multicast Service content of indication.

9. according to claim 5 or 7 described methods, it is characterized in that when extension header indication territory indicated described protocol header to comprise extension header, described protocol header also comprised: one or more extension header.

10. method according to claim 9, it is characterized in that, each extension header one of comprises in the following indication territory at least: whether the indication extension header is last prolate-headed head of described protocol header extension header type field, extension header entity of stopping identification field, the prolate-headed type of indication, keeps the territory, wherein, prolate-headed type comprises: multicast and broadcast partition packetization extension header, the multiplexing extension header of multicast and broadcast.

11. method according to claim 10 is characterized in that, when described extension header was multicast and broadcast partition packetization extension header, described extension header was used for segmentation or packing are carried out in SDU or SDU segmentation from a Multimedia Broadcast Multicast Service content.

12. method according to claim 11, it is characterized in that, when described extension header is multicast and broadcast partition packetization extension header, the extension header entity comprises following indication territory: N the territory that the sequence number territory of the SDU of the described load of indication composition or the sequence number of SDU segmentation, segmentation control domain, a N-1 length field, the indicating length territory of indication segmentation control information stop stops sign, wherein, N is the SDU of composition load or the quantity of SDU segmentation.

13. method according to claim 10 is characterized in that, when described extension header was the multiplexing extension header of multicast and broadcast, described extension header was used for packaging multiplexing is carried out in SDU or SDU segmentation from one or more Multimedia Broadcast Multicast Service contents.

14. method according to claim 13, it is characterized in that, when described extension header is the multiplexing extension header of multicast and broadcast, the extension header entity comprise following one of at least: the multiplexing expansion of one or more multicast and broadcasts chieftain piece, keep the territory, the Multimedia Broadcast Multicast Service content that the corresponding described load of the multiplexing expansion of each multicast and broadcast chieftain piece comprises.

15. method according to claim 14, it is characterized in that, the multiplexing expansion of described multicast and broadcast chieftain piece is used to describe the SDU of its corresponding Multimedia Broadcast Multicast Service content or the information of SDU segmentation, comprises following indication territory: whether indication expansion chieftain piece is the termination of a block identification field of last expansion chieftain piece, the identification field that is used to indicate the Multimedia Broadcast Multicast Service content, segmentation control domain, sequence number territory, territory termination sign, length field.

16. method according to claim 15 is characterized in that,

If described protocol header comprises a multicast and broadcast compression MAC head, then the multiplexing expansion of each multicast and broadcast chieftain piece all comprises the sign that is used to indicate the Multimedia Broadcast Multicast Service content, and when the data of described SDU or SDU segmentation during from a Multimedia Broadcast Multicast Service content, the described special identifier of identification field for reserving that is used to indicate the Multimedia Broadcast Multicast Service content represents that the multiplexing expansion of described multicast and broadcast chieftain piece is not used in the sign of indication Multimedia Broadcast Multicast Service content;

If described protocol header comprises a multicast and broadcast versatile MAC head, then the 1st the multiplexing expansion of multicast and broadcast chieftain piece do not comprise the sign that is used to indicate the Multimedia Broadcast Multicast Service content.

17. method according to claim 15 is characterized in that,

For described length field, the 1st the multiplexing expansion of multicast and broadcast chieftain piece comprises N1-1 length field, i the multiplexing expansion of multicast and broadcast chieftain piece comprises Ni length field in the multiplexing expansion of all the other multicast and broadcasts chieftain piece, wherein, N1 in the load with the quantity of the 1st multicast and broadcast multiplexing expansion pairing SDU of chieftain's piece or SDU segmentation, Ni in the load with i the multiplexing quantity of expanding pairing SDU of chieftain's piece or SDU segmentation of multicast and broadcast.

18. method according to claim 15 is characterized in that,

Stop sign for described territory, i the multiplexing expansion of multicast and broadcast chieftain piece comprises that Ni territory stops sign, wherein, Ni be in loading with the quantity of i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.

19. method according to claim 2 is characterized in that, described method also comprises:

In the protocol header of described protocol Data Unit, do not carry the sign that is used to indicate the Multimedia Broadcast Multicast Service content, the sign that indication is used to identify the multicast service sign of described Multimedia Broadcast Multicast Service connection and is used to indicate the Multimedia Broadcast Multicast Service content in the resource allocation information of control channel, and the order that identifies in the described resource allocation information is identical with the order of Multimedia Broadcast Multicast Service content in the described protocol Data Unit.

20. method according to claim 1, it is characterized in that, the load of described protocol Data Unit is made up of one or more Service Data Unit SDU or SDU segmentation, and wherein, the data of described one or more SDU or SDU segmentation connect from one or more Multimedia Broadcast Multicast Service.

21. method according to claim 20 is characterized in that, described method also comprises:

Indication is used to identify the multicast service sign that Multimedia Broadcast Multicast Service connects in the resource allocation information of control channel, and the sequence consensus that the order of multicast service sign is connected with Multimedia Broadcast Multicast Service in the described protocol Data Unit in the described resource allocation information.

22., it is characterized in that described protocol header comprises a multicast and broadcast compression MAC head according to claim 19 or 21 described methods.

23. method according to claim 22 is characterized in that, described multicast and broadcast compression MAC head comprises that following indication territory one of at least: extension header indication territory, length field, reservation territory.

24. method according to claim 23 is characterized in that, when comprising extension header after described multicast and broadcast compression MAC head is indicated in described extension header indication territory, described protocol header also comprises: one or more extension header.

25. method according to claim 24 is characterized in that, described extension header comprises that following indication territory one of at least: head stops identification field, extension header type field, extension header entity, keeps the territory.

26. method according to claim 25 is characterized in that,

When described extension header is multicast and broadcast partition packetization extension header, if described load from a Multimedia Broadcast Multicast Service content, then described extension header is used for segmentation or packing are carried out in SDU or SDU segmentation from described Multimedia Broadcast Multicast Service content; If described load connects from a Multimedia Broadcast Multicast Service, described extension header is used for segmentation or packing are carried out in the SDU or the SDU segmentation that connect from described Multimedia Broadcast Multicast Service.

27. method according to claim 26, it is characterized in that, described multicast and broadcast partition packetization extension header comprises following indication territory: sequence number territory, segmentation control domain, a N-1 length field, a N territory stop sign, and wherein, N is the SDU of composition load or the quantity of SDU segmentation.

28. method according to claim 27, it is characterized in that, when described extension header is the multiplexing extension header of multicast and broadcast, if described load is from one or more Multimedia Broadcast Multicast Service contents, and described Multimedia Broadcast Multicast Service content belongs to a Multimedia Broadcast Multicast Service and connects, and then described extension header is used for packaging multiplexing is carried out in SDU or SDU segmentation from described Multimedia Broadcast Multicast Service content; If described load connects from one or more Multimedia Broadcast Multicast Service, then described extension header is used for packaging multiplexing is carried out in the SDU or the SDU segmentation that connect from described Multimedia Broadcast Multicast Service.

29. method according to claim 28, it is characterized in that, the multiplexing extension header of described multicast and broadcast comprise following one of at least: the multiplexing expansion of one or more multicast and broadcasts chieftain piece, keep the territory, in the Multimedia Broadcast Multicast Service that the corresponding described load of the multiplexing expansion of each multicast and broadcast chieftain piece comprises perhaps a Multimedia Broadcast Multicast Service connect.

30. method according to claim 29, it is characterized in that, the multiplexing expansion of described multicast and broadcast chieftain piece is used to describe in its corresponding Multimedia Broadcast Multicast Service the SDU that Multimedia Broadcast Multicast Service perhaps connects or the information of SDU segmentation, and the multiplexing expansion of described multicast and broadcast chieftain piece comprises following indication territory: termination of a block identification field, segmentation control domain, sequence number territory, territory stop identifying, length field.

31. method according to claim 30 is characterized in that,

For described length field, the 1st the multiplexing expansion of multicast and broadcast chieftain piece comprises N1-1 length field, i the multiplexing expansion of multicast and broadcast chieftain piece comprises Ni length field in the multiplexing expansion of all the other multicast and broadcasts chieftain piece, wherein, N1 that be that load comprised with quantity the 1st multicast and broadcast multiplexing expansion pairing SDU of chieftain's piece or SDU segmentation, Ni is that load comprised and quantity i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.

32. method according to claim 31 is characterized in that,

Stop sign for described territory, i the multiplexing expansion of multicast and broadcast chieftain piece comprises that Ni territory termination identifies, and wherein, Ni is that load comprised and quantity i multiplexing pairing SDU of chieftain's piece of expansion of multicast and broadcast or SDU segmentation.