CN101998241A

CN101998241A - Method and system for synchronous subframe resource allocation of multimedia broadcast single frequency network (MBSFN)

Info

Publication number: CN101998241A
Application number: CN2009100905239A
Authority: CN
Inventors: 艾建勋
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-08-19
Filing date: 2009-08-19
Publication date: 2011-03-30

Abstract

The invention discloses a method for synchronous subframe resource allocation of a multimedia broadcast single frequency network (MBSFN). The method comprises the following steps: a mutli-cell/multicast coordination entity (MCE) transmits a control surface message containing subframe allocation pattern (SAP) information to an eNB; and the eNB updates an SAP list according to the control surface message, and transmits cell system messages containing the SAP list to cells in the region of the MBSFN indicated by the control surface message. The invention also discloses a system for synchronous subframe resource allocation of an MBSFN. The system comprises the MCE and the eNB. By adopting the method and the system of the invention, the subframe resources of the MBSFN can be synchronously allocated in the region of the MBSFN.

Description

Multicast Single frequency network subframe resource distribution method for synchronous and system

Technical field

The present invention relates to resource distribution technology in the field of wireless communication, particularly multicast Single frequency network (MBSFN) sub-frame resources configuration and synchronization method and the system in Long Term Evolution (LTE, LongTerm Evolution) system.

Background technology

In order to effectively utilize mobile network resource, 3GPP has proposed multimedia broadcasting and multicast service (MBMS, Multimedia Broadcast Multicast Service), in the mobile network, provide a data source to send the point-to-multipoint service of data to a plurality of users, the realization Internet resources are shared, improve utilization rate of network resource, the especially Bao Gui interface resource of eating dishes without rice or wine.In the LTE network, the MBMS technology of research is called improved MBMS (E-MBMS, Evolved MBMS).

In LTE Frequency Division Duplexing (FDD) (FDD) and LTE time division duplex (TDD), on mixed carrier, i.e. existing multicast (multicast) business on this carrier wave, clean culture (unicast) business is also arranged, and this moment, radio frames was divided into multicast Single frequency network frame (MBSFN frame) and non-multicast Single frequency network frame (None-MBSFN frame).Wherein, the MBSFN frame is used to carry the mulicast business, as: broadcasting service; Non-MBSFN frame, just unicast frame (Unicast frame) is used to carry the unicast business, as: the normal speech business.Subframe in each MBSFN frame is divided into MBSFN subframe (subframe) and non-MBSFN subframe again.Wherein, the MBSFN subframe adopts the MBSFN radiation pattern, but not the MBSFN subframe, promptly the unicast subframe adopts the unicast radiation pattern.

Fig. 1 is the schematic diagram of MBSFN sub-frame allocation in the prior art, and the shade filling part is represented the MBSFN subframe among Fig. 1.As shown in Figure 1, configuration MBSFN physical resource promptly has 32 radio frames in the cycle of a 320ms on cell system message, and each radio frames comprises 10 subframes, always have 320 subframes,, need indicate which is the MBSFN subframe in 320 subframes according to Testing requirement.

In the LTE network, no matter be FDD or TDD mode, no matter whether receive the MBMS business, UE needs to know that each radio frames is the MBSFN frame, need also to know whether each subframe in each MBSFN frame has adopted MBSFN, that is: UE need know whether each subframe is the MBSFN subframe, so that UE is in enterprising measurement of each subframe and channel estimating.Therefore, improved universal terrestrial access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network) need pass through cell system message, with each radio frames and and the above-mentioned information of subframe be notified to subscriber equipment (UE, UserEquipment), UE needs also to know whether each radio frames and each are MBSFN frame and measurement and the channel estimating of MBSFN subframe to carry out each subframe.

According to present disclosed technology, if a radio frames wherein contains the MBSFN subframe, then this radio frames is called the MBSFN frame.In order to save the expense on the cell system message, System information block 2 (the SIB2 of the cell system message of a sub-district, System Information Block2) on, by information unit MBSFN sub-frame configuration tabulation (MBSFN-SubframeConfig), adopting radio frames and two levels of wireless sub-frame to indicate the wireless sub-frame of which radio frames is the MBSFN subframe.Comprise one or more MBSFN sub-frame configuration this moment on SIB2, each MBSFN sub-frame configuration is called a subframe configuration mode (SAP, Subframe Allocation Pattem).Each SAP comprises:

1) radio frame level: radio frame level adopts the mode of cycle and skew, and indication which radio frames in a time cycle is the radio frames that has disposed the MBSFN subframe, and the radio frames that satisfies following formula is the MBSFN frame.

(SFN) mod (Radio Frame Allocation Period)=Radio Frame Allocation Offset (formula 1)

Wherein: SFN: the frame number of radio frames; Radio Frame Allocation Period: the assignment period of radio frames; Radio Frame Allocation Offset: the allocation offsets of radio frames.

2) wireless sub-frame level: adopt bit mapping (Bitmap), be also referred to as bitmap 10 subframe middle fingers of each MBSFN frame bright which be the MBSFN subframe, that is: on the subframe level, the allocation model that is defined in the MBSFN among these MBSFN is identical, that is: the number of the MBSFN subframe that is assigned with in each MBSFN frame is identical with the subframe numbering, and 10 subframes of each radio frames are numbered: #0, #1, ..., #9.As shown in Figure 1, the radio frames of SFN=#0, #1 and #2 is configured to the MBSFN frame, and wireless sub-frame #8 is configured to the MBSFN subframe.Because subframe #0, #4, #5 and the #9 of FDD, subframe #0, the #1, #2, #5 and the #6 that reach TDD can not be configured to the MBSFN subframe regularly, so the Bitmap of the allocation model of wireless sub-frame adopts 6bit, that is: { Bit0, Bit1, Bit2, Bit3, Bit4, Bit5} represents.FDD wherein, the corresponding subframe #1 of Bit0, the corresponding subframe #2 of Bit1, the corresponding subframe #3 of Bit2, the corresponding subframe #6 of Bit3, the corresponding subframe #7 of Bit4, the corresponding subframe #8 of Bit5; TDD, the corresponding subframe #3 of Bit0, the corresponding subframe #4 of Bit1, the corresponding subframe #7 of Bit2, the corresponding subframe #8 of Bit3, the corresponding subframe #9 of Bit4, Bit5 keeps no actual use.When certain or some Bit are set to " 1 ", represent that then the pairing subframe of this Bit is configured to the MBSFN subframe.Table 1 is the allocation model table that employing Bitmap represents the MBSFN subframe, and is as shown in table 1.

Bit number

Bit0

Bit1

Bit2

Bit3

Bit4

Bit5

FDD

Subframe #1

Subframe #2

Subframe #3

Subframe #6

Subframe #7

Subframe #8

TDD

Subframe #3

Subframe #4

Subframe #7

Subframe #8

Subframe #9

Meaningless

Table 1

In order to increase configuration flexibility, above-mentioned sub-frame allocation pattern can also adopt the method for salary distribution of 4 continuous radio frames, on the wireless sub-frame rank, represent { Bit0 with 24 bit, Bit1, ... Bit23}, wherein Bit0-Bit5 indicates the MBSFN subframe of the 1st radio frames, and Bit6-Bit11 indicates the MBSFN subframe of the 2nd radio frames, Bit12-Bit17 indicates the MBSFN subframe of the 3rd radio frames, and Bit18-Bit23 indicates the MBSFN subframe of the 4th radio frames.As: certain SAP sub-frame configuration pattern=111100, for FDD, expression subframe #1, #2, #3, #6 are configured to the MBSFN subframe, and for TDD, expression subframe #3, #4, #7, #8 are configured to the MBSFN frame.

In existing LTE technology, introduced the notion of MBSFN zone (MBSFN area), in a plurality of sub-districts that a MBSFN area comprises, the professional MBSFN mode that adopts of MBMS sends, different districts adopts the duplicate physical signalling of transmission of identical resource, content and time synchronized among the same MBSFN area, to improve the receiving gain of UE.

The logic channel of MBMS business is MBMS Traffic Channel (MTCH), the session of the corresponding MBMS business of each bar MTCH.MTCH is mapped to Multicast Channel (MCH) and then is mapped to Physical Multicast Channel (PMCH), sends in the MBSFN mode.Can dispose one or more PMCH channel in a MBSFN area, a PMCH channel can carry one or more MCH channels, and is preferred, MCH channel of a PMCH channel bearing.Many the MTCH channel can be mapped to same MCH channel.Article one, the resource of PMCH channel is made up of one group of MBSFN subframe.The configuration information of every MCH/PMCH among the one or more MBSFN area of multicast control channel (MCCH) carrying comprises MBSFN subframe configuration information, the Modulation and Coding Scheme of each PMCH channel configuration, MTCH configuration information of MCH carrying or the like.The MCCH channel is broadcasted in the MBSFN mode, and this just requires the evolved base station (eNB) among the MBSFNarea to send identical MCCH message content.

The method of a PMCH channel of configuration comprises in MCCH message: at first select one or more SAP from the SAP tabulation, constitute the MBSFN subframe set of a PMCH or a plurality of PMCH.The MBSFN sub-frame resources that from the set of described MBSFN subframe, takies again according to each PMCH of period definition.In the method for selecting described MBSFN subframe set, can select SAP by the index of specifying described SAP tabulation, for example, index was 0 and 1 the defined MBSFN subframe of SAP during the MBSFN subframe set of PMCH among the MBSFN area was tabulated by appointment SAP, then will quote

SAP list index

0 and 1 in MCCH message.

When MCCH message sends for the MBSFN mode, because MCCH message sends in the MBSFN mode, so the index of the SAP that quotes in the subframe sets definition of the PMCH that all eNB disposed in MBSFN area tabulation needs unanimity.And the cell system message of carrying SAP tabulation is not to broadcast in the MBSFN mode, and prior art does not require to be consistent between the eNB of content in MBSFN area of cell system message.And, the MBSFN subframe of definition also comprises the MBSFN subframe that is used for relaying purposes such as (relay) in the SAP tabulation, and the MBSFN sub-frame configuration that relaying needs is that the sub-district is distinctive, the configuration of neighbor cell can be inequality, and not every sub-district all needs to dispose the MBSFN subframe that is used for relaying.This explanation: the SAP tabulation of system message carrying can not be identical in MBSFN area.

In addition, consider that there is overlapping situation in MBSFN area, the SAP tabulation of different districts system message configuration also can be different.Fig. 2 is the SAP configuration schematic diagram of the sub-district of different MBS FN area in the prior art, and as shown in Figure 2, there are juxtaposition in MBSFN area 1 (abbreviating MA-1 as) and MBSFN area 2 (abbreviating MA-2 as), and sub-district (cell) A belongs to MA-1 and MA-2 simultaneously.The MBSFN sub-frame resources of the PMCH channel configuration of different MBSFN area obviously is different in the cell A of sub-district, that is to say, in cell A, the channel configuration that belongs to MA-1 and MA-2 is with the different list items of correspondence in the SAP tabulation, for example, SAP-0 in the corresponding SAP tabulation of the MBSFN sub-frame resources of MA-1, the MBSFN sub-frame resources of MA-2 belongs to the SAP-1 of SAP tabulation, first and second list items of the respectively corresponding SAP tabulation of SAP-0 and SAP-1.And sub-district cell B only belongs to MA-2, if the MBSFN sub-frame resources of MA-2 correspondence is configured in SAP-0 among the cell B, i.e. and first list item of SAP tabulation.Provided the SAP list configuration of cell A and cell B among Fig. 2 respectively, as can be seen, among cell A and the cell B MCCH message of corresponding MA-2 will occur inconsistent, the SAP list index difference of promptly indicating in the MCCH message.

As seen from the above, when there is overlapping situation in MBSFN area, the MBSFN sub-frame resources that this MBSFN area correspondence in the different districts under the same MBSFNarea will occur being in is configured in the diverse location of SAP tabulation, thereby cause the SAP list index difference of indicating in the sub-district MCCH message in the same MBSFN area, and then cause because the asynchronous presence of intercell interference of bringing of MCCH message.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of multicast Single frequency network subframe resource distribution method for synchronous and system, can realize that the MBSFN sub-frame resources disposes in MBSFN area inter-sync.

For achieving the above object, technical scheme of the present invention is achieved in that

The invention provides a kind of multicast Single frequency network subframe resource distribution method for synchronous, this method comprises:

Many cell multicasts coordination entity MCE sends and comprises the chain of command message of sub-frame configuration Mode S AP information to evolved base station eNB;

ENB upgrades the SAP tabulation according to chain of command message, and the sub-district in the multicast Single frequency network zone of chain of command message indication sends the cell system message that comprises this SAP tabulation.

In the technique scheme, described chain of command message also comprises: the cell identity information in the identification information in multicast Single frequency network zone or the multicast Single frequency network zone; The sub-district that described eNB determines to send described cell system message according to the identification information or the cell identity information in the multicast Single frequency network zone in multicast Single frequency network zone.

In the technique scheme, described SAP information comprises: SAP content information and SAP positional information; Described SAP content information is the MBSFN subframe configuration information, and described SAP positional information is the position of described SAP content information in the SAP tabulation.

Wherein, described SAP information also comprises: the SAP operation information, and this SAP operation information comprises one or more in the following operation: removing, subframe deletion, subframe merge, cover; Described eNB upgrades corresponding SAP content information in the SAP tabulation according to the operation of SAP operation information indication.

Described SAP content information comprises: the subframe message bit pattern of the assignment period information of SAP, the offset information of SAP and/or SAP.

In the technique scheme, described renewal SAP listings step comprises: eNB determines the position of SAP in the SAP tabulation, is specially:

When the SAP positional information call number that is SAP in the SAP tabulation, eNB determines the position of SAP in the SAP tabulation according to described call number; Or

In chain of command message, carry one group of SAP, and when only indicating the call number of first SAP in described SAP tabulation, eNB will begin from the position of the call number correspondence of this first SAP the SAP tabulation, determines the position of each SAP successively according to the order of described one group of SAP in chain of command message; Or

Carry one group of SAP in chain of command message, and when not indicating the call number of any SAP, eNB will be from first list item of SAP tabulation, sends to the position that order in the chain of command message among the eNB is determined each SAP according to described one group of SAP at MCE.

The present invention also provides a kind of multicast Single frequency network subframe resource distribution synchro system, and this system comprises: MCE and eNB; Concrete:

MCE, be used to send comprise SAP information chain of command message to eNB;

ENB is used for the tabulation according to chain of command information updating SAP, and the sub-district in the multicast Single frequency network zone of chain of command message indication sends the cell system message that comprises this SAP tabulation.

In the technique scheme, described SAP information comprises: SAP content information and SAP positional information;

Described SAP content information is the MBSFN subframe configuration information, comprising: the subframe message bit pattern of the assignment period information of SAP, the offset information of SAP and/or SAP;

Described SAP positional information is the position of SAP content information in the SAP tabulation.

The inventive method and system, by the chain of command message of sending according to MCE by eNB, upgrade the SAP tabulation, sub-district in corresponding M BSFN area sends the cell system message that comprises this SAP tabulation, makes the MBSFN sub-frame resources of this MBSFN area correspondence in the sub-district in the same MBSFN area be configured in the same position that SAP tabulates.In the MBMS of LTE system Access Network framework, realized the synchronous configuration of multicast and broadcast sub-frame resources between eNB in the MBSFN area, especially under the stacked situation of MBSFN area, realize that the MBSFN sub-frame resources disposes in MBSFN area inter-sync.

Description of drawings

Fig. 1 is the schematic diagram of MBSFN sub-frame allocation in the prior art;

Fig. 2 is the SAP configuration schematic diagram of the sub-district of different MBS FN area in the prior art;

Fig. 3 is the Access Network network architecture schematic diagram of MBMS business in the LTE system;

Fig. 4 is the schematic flow sheet of MBSFN sub-frame resources configuration and synchronization method of the present invention.

Embodiment

Basic thought of the present invention is: the chain of command message that eNB sends according to MCE, upgrade the SAP tabulation, sub-district in corresponding M BSFN area sends the cell system message that comprises this SAP tabulation, make the MBSFN sub-frame resources of this MBSFN area correspondence in the sub-district in the same MBSFN area be configured in the same position that SAP tabulates, realize that the MBSFN sub-frame resources disposes in MBSFN area inter-sync.

Fig. 3 is the Access Network network architecture schematic diagram of MBMS business in the LTE system, LTE adopts MBMS access network framework shown in Figure 3, as shown in Figure 3, this Access Network network architecture comprises many cell multicasts of logical ne coordination entity (MCE, Multi-cell/multicast Coordination Entity) and base station (eNB).Wherein MCE sets up signaling with eNB by the M2 interface and is connected, and indicates each eNB to carry out resource distribution by chain of command message, and is concrete, and MCE indication eNB is the MBSFN sub-frame resources that the cell configuration among the MBSFN area is used for the MBMS business.

Fig. 4 is the schematic flow sheet of MBSFN sub-frame resources configuration and synchronization method of the present invention, and as shown in Figure 4, this method comprises:

Step 10, MCE send and comprise the chain of command message of SAP information to eNB;

Step 20, eNB are according to chain of command information updating SAP tabulation, and the sub-district in the MBSFNarea of chain of command message indication sends the cell system message that comprises this SAP tabulation.

In the technique scheme, MCE indicates content and the position of described SAP in the SAP tabulation that is carried on cell system message of the eNB configuration SAP in the corresponding MBSFN area by chain of command message.In sending to the chain of command message of eNB, MCE carries above-mentioned SAP content information and SAP positional information.This SAP content information is the MBSFN subframe configuration information, and the SAP positional information is the position of SAP in the SAP tabulation.

Described eNB is according to SAP content information configuration MBSFN subframe, and according to SAP updating location information SAP tabulation, the sub-district in the corresponding MBSFN area sends the cell system message that comprises this SAP tabulation.

MCE sends identical chain of command message content to the eNB under the same MBSFN area, so that the sub-district is the identical SAP tabulation of this MBSFN area configuration in the MBSFN area.

Optionally, MCE can also carry the SAP operation information in above-mentioned chain of command message, and described SAP operation information comprises one or more in the following operation: removing, subframe deletion, subframe merge, cover.One or one group of corresponding a kind of SAP operation information of SAP carrying in the described chain of command message.ENB upgrades corresponding SAP content information in the SAP tabulation according to the operation of SAP operation information indication.

Optionally, MCE also carries the identification information of MBSFN area or the cell identity information in the MBSFN area in above-mentioned chain of command message, be used to indicate eNB to dispose the MBSFN area of described SAP.The sub-district that eNB determines to send described cell system message according to identification information or the cell identity information in the MBSFN area of MBSFN area, the configuration of cell system message SAP tabulation is carried out in the sub-district in described MBSFN area.

Concrete, described SAP content information comprise following message partly or entirely: the assignment period information of SAP, the offset information of SAP, and the subframe message bit pattern of SAP.If described SAP operation information is for removing, then described SAP information can be with any concrete information.

Described SAP positional information specifically can be a kind of in the following message:

1) call number of described SAP in described SAP tabulation.In this case, eNB determines the position of SAP in the SAP tabulation according to described call number.

2) MCE carries one group of SAP in sending to the chain of command message of eNB, and only indicates the call number of first SAP in described SAP tabulation.In this case, eNB will begin from the position of the call number correspondence of described first SAP SAP tabulation, sends to the position that order in the chain of command message among the eNB is determined each SAP successively according to described one group of SAP at MCE.

3) MCE carries one group of SAP in sending to the chain of command message of eNB, and the call number of not indicating any SAP.In this case, eNB will be from first list item of SAP tabulation, sends to the position that order in the chain of command message among the eNB is determined each SAP according to described one group of SAP at MCE.

If the SAP operation information of described one or one group SAP is for covering, then eNB is with the corresponding list item in the SAP tabulation in the described SAP content information coverage cell system message, and described corresponding list item is determined by the method that the present invention describes.

If being subframe, the SAP operation information of described one or one group SAP merges, then eNB merges content in the corresponding list item in the SAP tabulation in described SAP content information and the cell system message, described corresponding list item is determined by the method that the present invention describes, described union operation is meant that eNB indicates the subframe bitmap to the SAP content information in the corresponding list item in the SAP content information of eNB and the SAP tabulation to merge MCE, this merga pass logical "or" operation.

If the SAP operation information of described one or one group SAP is for removing, then eNB deletes the content in the corresponding list item in the tabulation of the SAP in the cell system message, empties in other words, does not still change the arrangement position of other SAP in the SAP tabulation.

If the SAP operation information of described one or one group SAP is the subframe deletion, corresponding subframe in the MBSFN subframe bitmap during then corresponding SAP disposes in the eNB removal cell system message SAP tabulation.In other words, eNB indicates the subframe bitmap to the SAP in the corresponding list item in the described SAP information content neutron framing bit figure of eNB and the SAP tabulation to carry out the logical exclusive-OR operation MCE.

ENB is when sending cell system message, there is the situation that does not dispose the SAP content information before if dispose the list item of SAP content information in the SAP tabulation, for example, (N2＞N1) has disposed the SAP content information for N1 in the SAP tabulation and N2 item, and not configuration of the list item between N1 and the N2, then eNB needs to send all list items (comprising the N2 item) before the N2 at least, and the content that does not wherein dispose the list item of SAP content information is filled out and is sky.

Concrete expression list item is empty, can be by following content in the list item being filled out the assignment period information into 0:SAP, the offset information of SAP and the subframe message bit pattern of SAP.

In order to save the signaling consumption of wave point, eNB can select not send described last disposed list item after the list item of SAP content information.

Specify multicast Single frequency network subframe resource distribution method for synchronous of the present invention below in conjunction with embodiment.

Embodiment one:

In the present embodiment, MCE sends to and carries following information in the chain of command message of eNB:

1) one group of SAP content information, each SAP content information comprises: be the SAP cycle information of unit, be SAP offset information, and the MBSFN subframe message bit pattern of unit with radio frames or 10ms with radio frames or 10ms.In the present embodiment, described one group of SAP information comprises SAP-1, SAP-2.

2) positional information of one or one group SAP, be used for indicating the position of corresponding SAP content information in SAP that cell system message carries tabulation, preferably, this positional information is the call number of each SAP SAP tabulation in cell system message among described one group of SAP.In the present embodiment, the positional information of SAP-1 is call number P1, and the positional information of SAP-2 is call number P2.

3) carry the operation information of SAP, operation information is following a kind of: remove, subframe deletion, subframe merge, cover.Optionally, described each SAP operation information can be at above-mentioned one group of SAP information, or one or more at above-mentioned one group of SAP information.In the present embodiment, carry a SAP operation at each SAP; For example, to SAP-1, it is operating as covering, and to SAP-2, it is operating as subframe and merges.

4) carry MBSFN area information, in the present embodiment, this MBSFN area information is MBSFN area identification information.

ENB receives above-mentioned chain of command message, at first determines to carry out the sub-district of SAP configuration according to the identification information of MBSFN area.Concrete, the sub-district of described MBSFN area is configured operation to belonging to of its management.

ENB according to the positional information of described each SAP, determines that each SAP corresponds to the position in the SAP tabulation of carrying in the cell system message to its one group of SAP content information that carries.

The operation information that eNB carries according to above-mentioned chain of command message is operated each SAP of described one group of SAP information.In the present embodiment, to SAP-1, it is operating as covering, and eNB is specially with content information in the P1 item in the SAP tabulation in the content information coverage cell system message of SAP-1: the tabulate content information of P1 item of SAP changes the content information of SAP-1 into.To SAP-2, it is operating as subframe and merges, eNB carries out the operation that subframe merges to the P2 item in the SAP tabulation of carrying in the cell system message, be specially: eNB carries out the logical "or" operation with original SAP neutron framing bit figure in the P2 item and SAP-2 content information neutron framing bit figure, for example, the subframe bitmap of SAP-2 is 0x000100, and original subframe bitmap is 0x001000 among the P2 item SAP of the SAP tabulation of carrying in the cell system message, and then the result of logic OR is 0x001100.

After above-mentioned cell system message was finished configuration, eNB sub-district in same MBSFN area sent identical cell system message.Suppose except above-mentioned SAP, do not dispose other SAP list item, then eNB only need send list item and two list items of P1, the P2 list item before that index is P1 and P2.For example suppose P2＞P1, and P1!=0,0 is expressed as the index of first list item of SAP tabulation, and then eNB need send all the SAP list entry from 0 to P2, and the content of the SAP list entry except P1 and P2 is filled out and is sky, promptly all fill out 0, this is the SAP list item that does not dispose any SAP content information with indication UE.

Embodiment two

1) one group of SAP content information comprises SAP-1, SAP-2.Wherein SAP-1 comprises: be the SAP cycle information of unit, be SAP offset information, and the MBSFN subframe message bit pattern of unit with radio frames or 10ms with radio frames or 10ms; SAP-2 does not comprise any information.

2) positional information of one or one group SAP, be used for indicating the position of corresponding SAP in SAP that cell system message carries tabulation, preferred, this positional information is first SAP positional information in the SAP tabulation in cell system message among described one group of SAP.In the present embodiment, described positional information is call number P1.

3) carry the operation information of SAP, operation information is one or more in the following operation: remove, subframe deletion, subframe merge, cover.Optionally, described each SAP operation information can be at above-mentioned one group of SAP information, or one or more at above-mentioned one group of SAP information.In the present embodiment, carry a SAP operation at each SAP; For example, to SAP-1, it is operating as removing, and to SAP-2, it is operating as the subframe deletion.

ENB according to the positional information of first SAP, determines the position of each SAP to its one group of SAP content information that carries, first SAP among SAP-1 and the SAP-2 for example, and just the position of SAP-1 is P1, then the position of SAP-2 is P1+1, and the like.

The operation information that eNB carries according to above-mentioned chain of command message is operated each SAP of described one group of SAP information.In the present embodiment, to SAP-1, it is operating as removing, and then eNB removes the SAP content of P1 item correspondence in the SAP tabulation of carrying in original cell system message; To SAP-2, it is operating as the subframe deletion, then eNB carries out the operation of subframe deletion to P1+1 item in the SAP tabulation of carrying in the cell system message, be specially: eNB carries out the logical exclusive-OR operation with subframe bitmap among the original SAP of P1+1 item and SAP-2 content information neutron framing bit figure, for example, the subframe bitmap of SAP-2 is 0x000100, and the subframe bitmap in the SAP tabulation of carrying in the cell system message among the P2 item SAP is 0x001100, and then the result of logic XOR is 0x001000.

After above-mentioned cell system message was finished configuration, in the SAP tabulation, to the SAP of same MBSFN area, its content information was configured in identical list item position to eNB in the cell system message that the subordinate sub-district sends.

The present invention also provides a kind of system that realizes above-mentioned multicast Single frequency network subframe resource distribution method for synchronous, and this system comprises: MCE and eNB; Concrete:

MCE, be used to send comprise sub-frame configuration Mode S AP information chain of command message to eNB;

ENB is used for according to chain of command message, upgrades the SAP tabulation, and the sub-district in the multicast Single frequency network zone of chain of command message indication sends the cell system message that comprises this SAP tabulation.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims

1. multicast Single frequency network subframe resource distribution method for synchronous is characterized in that this method comprises:

2. multicast Single frequency network subframe resource distribution method for synchronous according to claim 1 is characterized in that, described chain of command message also comprises: the cell identity information in the identification information in multicast Single frequency network zone or the multicast Single frequency network zone; The sub-district that described eNB determines to send described cell system message according to the identification information or the cell identity information in the multicast Single frequency network zone in multicast Single frequency network zone.

3. multicast Single frequency network subframe resource distribution method for synchronous according to claim 2 is characterized in that, described SAP information comprises: SAP content information and SAP positional information; Described SAP content information is the MBSFN subframe configuration information, and described SAP positional information is the position of described SAP content information in the SAP tabulation.

4. multicast Single frequency network subframe resource distribution method for synchronous according to claim 3, it is characterized in that, described SAP information also comprises: the SAP operation information, and this SAP operation information comprises one or more in the following operation: removing, subframe deletion, subframe merge, cover; Described eNB upgrades corresponding SAP content information in the SAP tabulation according to the operation of SAP operation information indication.

5. multicast Single frequency network subframe resource distribution method for synchronous according to claim 4 is characterized in that, described SAP content information comprises: the subframe message bit pattern of the assignment period information of SAP, the offset information of SAP and/or SAP.

6. according to each described multicast Single frequency network subframe resource distribution method for synchronous of claim 3 to 5, it is characterized in that described renewal SAP listings step comprises: eNB determines the position of SAP in the SAP tabulation, is specially:

7. a multicast Single frequency network subframe resource distribution synchro system is characterized in that this system comprises: MCE and eNB; Concrete:

MCE, be used to send comprise SAP information chain of command message to eNB;

8. multicast Single frequency network subframe resource distribution synchro system according to claim 7 is characterized in that, described chain of command message also comprises: the cell identity information in the identification information in multicast Single frequency network zone or the multicast Single frequency network zone; The sub-district that described eNB determines to send described cell system message according to the identification information or the cell identity information in the multicast Single frequency network zone in multicast Single frequency network zone.

9. according to claim 7 or 8 described multicast Single frequency network subframe resource distribution synchro systems, it is characterized in that described SAP information comprises: SAP content information and SAP positional information;

10. multicast Single frequency network subframe resource distribution synchro system according to claim 9, it is characterized in that, described SAP information also comprises: the SAP operation information, and this SAP operation information comprises one or more in the following operation: removing, subframe deletion, subframe merge, cover; Described eNB upgrades corresponding SAP content information in the SAP tabulation according to the operation of SAP operation information indication.