CN103997718B

CN103997718B - A kind of method and system for transmitting dynamic scheduling information

Info

Publication number: CN103997718B
Application number: CN201310724176.7A
Authority: CN
Inventors: 胡剑; 胡臻平; 高有军; 马志锋; 马子江
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2009-09-29
Filing date: 2009-09-29
Publication date: 2017-12-29
Anticipated expiration: 2029-09-29
Also published as: CN103997718A

Abstract

The invention discloses a kind of method and system for transmitting dynamic scheduling information, it is related to LTE system.The inventive method includes：Network side equipment is by all-multicast channel（MCH）DSI merge into a new DSI, and carrying multicast control channel（MCCH）Main MCH on send the new DSI；User equipment receives the new DSI on the main MCH.Technical solution of the present invention allows receiving terminal to be accurately obtained the more specific location information of MBMS that needs receive within a dispatching cycle.

Description

A kind of method and system for transmitting dynamic scheduling information

The cross reference of related application

The application is divisional application.The Application No. 200910178914.6 of original application, the applying date are 09 month 2009 29 Day, entitled " a kind of method and system for transmitting dynamic scheduling information ".

Technical field

The present invention relates to LTE (Long Term Evolution, Long Term Evolution) system, more particularly to transmitting multimedia broadcast Broadcast and multicast service (Multimedia Broadcast Multicast Service, referred to as MBMS) dynamic scheduling information Method and system.

Background technology

With Internet fast development and the popularization of giant-screen multi-functional mobile phone, there are the more matchmakers of a large amount of mobile datas Body business and various high bandwidth multimedia services, for example, video conference, television broadcasting, video request program, advertisement, online education, mutually Dynamic game etc., this aspect meet the business demand that mobile subscriber constantly rises, while also bring for mobile operator new Business growth point.The multiple users of these mobile data multimedia service requirements can receive identical data simultaneously, with general number Compared according to business, have the characteristics that data volume is big, the duration is long, delay sensitive.

In order to effectively utilize mobile network resource, third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) MBMS is proposed, the business is a kind of from a data source to multiple Target transmits the technology of data, realizes the shared of network (including core net and access network) resource, it is (outstanding to improve Internet resources It is air interface resource) utilization rate.The MBMS that 3GPP is defined can not only realize the message class multicast of plain text low rate And broadcast, but also broadcast and the multicast of high-speed multimedia service can be realized, there is provided a variety of abundant videos, audio and more matchmakers Body business, this has undoubtedly complied with the trend of following mobile data development, better services prospect is provided for 3G development.

In LTE, MBMS can use multicasting mode mode, referred to as MBSFN (Multicast/Broadcast Over Single Frequency Network, single frequency network multicast broadcast) sending mode, the MBMS sent using multicasting mode Business, also referred to as MBSFN business, can multiple cells using identical modulation after coded format, using identical physics provide Source sends identical content, and the feature of MBMS cell transmissions is as follows：

1) synchronous transfer in MBSFN regions；2) multiple cell MBMS transmission is supported to merge；3)MTCH(Multicast Traffic Channel, Logical Traffic Channels) and MCCH (Multicast Control Channel, multicast control channel) exist It is mapped under p-T-m (point-to-multipoint) pattern on MCH (Multicast Channel)；4) MBSFN retaining zones, MBSFN regions, MBSFN are passed It is defeated, advertisement, retain cell, be semi-statically configured by Operation and Maintenance.

The UE (User equipment, user equipment) of so multiple cells can receive multiple content identical MBMS Data simultaneously carry out SFN (SFN) merging, so as to improve the gain of reception signal.Use identical physical resource and with Multiple cells that MBSFN sending modes send same MBMS business constitute a MBSFN region.

In the LTE networkings of reality, there are several MBSFN business on a MBSFN region, these belong to same All MBSFN business in MBSFN regions are referred to as a MBSFN service groups, that is to say, that a MBSFN service groups only belong to one MBSFN regions.One MBSFN region includes multiple cells, and each cell is configured with an identical MBSFN business Group.Possess the data channel MTCH of multiple MBSFN business in identical MBSFN regions, and the control channel of MBSFN business MCCH can be multiplexed into a MCH (Multicast Chnanel, Multicast Channel).The MCCH in identical MBSFN regions and multiple MTCH, i.e., a plurality of logic channel may map on same transmission channel MCH；

In LTE system, MCH is transmission channel, and feature is to carry out point-to-multipoint transmission, and corresponding physical resource is to be Unite to transmit the multicast resource that MBMS (MTCH) is distributed, a MCH is carried on some multicast resources, these multicasts money Source is included on several MBSFN frames and MBSFN sub-frame, as shown in figure 1,Represent that non-MBSFN frame, represent MBSFN Frame,Non- MBSFN subframe are represented,MBSFN subframe are represented,Represent that fixation is no.These multicast resources Configured using a set of MSAP (MBSFN subframe allocation pattern, MBSFN sub-frame distribution pattern), including Radio frames allocation model and wireless sub-frame allocation model, the multicast resource in each MBSFN regions can in units of subframe according to Certain pattern is divided into multiple groups, and each group may be constructed a MCH, or one MCH of multiple groups of compositions.So each MCH Used pattern is just called the MSAP of the MCH during composition, and a MSAP describes the physical resource of a MCH channel.It is each small Area can have one or more MCH, and each MCH uniquely corresponds to a MSAP, and uniquely belongs to a MBSFN region, but each MBSFN regions can have one or more MCH, and the collocation method for the multicast resource that each MCH is configured is matched somebody with somebody for each MCH Put a set of MSAP.

As shown in Fig. 2 in order to improve MTCH transmitting efficiency, the multiple MTCH carried on each MCH can use dynamic The method of scheduling, the MTCH of 2 or more than 2 can be multiplexed by dynamic dispatching in same MBSFN sub-frame and be taken The part resource of the subframe, Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) are respectively Scheduling Period 1, Scheduling Period 2, Scheduling Period 3 resource allocation schematic diagram.In existing public technology, in MSAP concepts simultaneously Introduce MSAP occasion (MSAP opportunitys), its indicate one dispatching cycle (i.e. a period of time of wave point, Duo Geye Be engaged on the MBSFN sub-frame scheduling resource that includes within dispatching cycle in sequence successively sending) period in some MSAP institute Whole multicast resources included by a corresponding MCH.Multiple MTCH and these can be sent in a MSAP occasion MTCH dynamic scheduling information (Dynamic scheduling information, DSI, referred to as schedule information) refers to scheduling week The information of the specific positional information of business, dynamic scheduling information can be sent within dispatching cycle in phase, or in dispatching cycle Previous or several dispatching cycle in send, typically, schedule information should its instruction dispatching cycle in business datum UE is sent to before sending), MCCH can also be included, schedule information can be carried on MAC (medium access control) control section (MAC control element) MSAP occasion length is typically fixed as 320ms.Similarly, a dispatching cycle is general It is fixed as 320ms or 2ⁿ× 320ms (n=-3, -2, -1,0,1,2,3,4 ... ..N), correspondingly, MSAP Occasion time spans are 40ms, 80ms, 160ms, 320ms, 640ms, when 1280ms etc., a MSAP occasion Between length, also referred to as MSAP occasion period are exactly a dispatching cycle, an also referred to as dispatching cycle.One MCH One or more of one or more MBSFN frames MBSFN sub-frame is assigned with by MSAP, wherein sent using multicasting mode Subframe is referred to as MBSFN sub-frame, and the frame containing MBSFN sub-frame is referred to as MBSFN frames.There are a plurality of MCH, every MCH in one MBSFN region There is respective dispatching cycle (scheduling period), be referred to as MSAP occasion (period), every MCH Dispatching cycle be able to can also be differed with identical.

In the prior art, as shown in figure 3, each MCH is (in such as Fig. 3It show MCH1,It show MCH2,It show MCH3,It show MCH4) there is a Scheduling Block for carrying its dynamic scheduling information DSI (in such as Fig. 3It is shown), usually DSI is carried on MAC SDU, is configured in the MCH of its scheduling foremost, is carried when on this MCH During MCCH, i.e., when carrying DSI, MCCH and MTCH simultaneously on the MCH, the carrying order of three is：DSI, MCCH and MTCH。

Schedule information is carried on each MSAP occasion that a MCH is configured, carries MTCH to auxiliary MSAP The map information of subframe, this map information are determined by means of the MBSFN sub-frame numeral index relation within a dispatching cycle , UE reads schedule information and is known which MBSFN sub-frame each MTCH is dispensed in.UE can be in corresponding MBSFN Its MTCH interested is read in subframe, and ignores the MBSFN sub-frame that it need not read, is connect so as to improve UE MBMS Produce effects rate, save UE power consumption.What MBSFN sub-frame numbering described herein was related such that：By a MCH at one All MBSFN sub-frames distributed in dispatching cycle arrange in sequence, number consecutively.Such as MCH channels are in a cycle The MBSFN sub-frame number total amount of distribution is 100, then subframe number is from 0 to 99, or 1 to 100, can using start/end come Represent the sub-frame resources shared by each MBMS for being carried on the MCH.

In existing LTE technologies, multiple transmission channels are multiplexed MCH channels by such a way：One subframe corresponding one Individual TTI (Transmission Time Interval), an output block can be sent in a TTI, (media connect a corresponding MAC PDU Enter key-course protocol Data Unit).In a MAC PDU, multiple MAC SDU (service data unit) and MAC can be included CE (MAC Control Element, MAC control element), these MAC SDU can come from different logic channels, possible For logic channel including MTCH, MCCH, MSCH etc., MAC CE can carry dynamic scheduling information.These come from Different Logic channel Data be serially connected in MAC PDU after send on the physical channel together.In order to distinguish from Different Logic channel Identification information is carried in MAC SDU, MAC PDU, specifically, there is the mark of logic channel, the data block of the logic channel exists Positional information in MAC PDU etc., the data block for receiving terminal difference Different Logic channel.

In a MBSFN area, there are many MBMSs, each business has a service identification (service ID), A session identification (session ID) is there may also be, in this MBSFN region, all MBMSs have one uniquely service ID.All business in one MBSFN area are carried on different MCH respectively, and every MCH is its carrying One Logic Channel Identifier of traffic assignments (such as：MTCH ID), so on every MCH, service identification and logic channel mark Know and correspond.The span of logic channel is (0,1,2 ... 31), that is to say, that can carry and distinguish most on a MCH Big 32 logic channels.There can be identical Logic Channel Identifier on different MCH, these identical Logic Channel Identifiers are corresponding Different service identifications, in other words, a MBSFN area all business, it is total to by MCH marks and Logic Channel Identifier With uniquely indicating.Such as Fig. 4.

Each DSI specifies the MBSFN sub-frame resource of all MBMSs distribution on a MCH, can pass through The beginning of each MBMS terminates subframe to indicate (start/end).As shown in Figure 5.All business be all sequentially according to Secondary arrangement, because the order of all MBMSs has been configured in MCCH message, so network side and UE have known The order of all MBMSs on the road MCH, so, the logic channel of MBMS need not be explicitly indicated in DSI again Identify, it is only necessary to configure { start/end, start/end ... .start/end } successively, 1,2 ..n in accompanying drawing are actually In DSI contents and it is not present, merely to description is convenient.

Because the region of MBMS service transmission is different, may there can be a plurality of MCH in some cell, carrying respectively belongs to The business in different MBMS regions；Further, since the QoS attributes of business are different, a MBSFN region may also configure a plurality of MCH, every MCH configure different MCS (Moduling Coding Scheme, Modulation and Coding Scheme), carry different QoS respectively It is required that MBMS, MCCH and DSI also including special qos requirement.Under the scene that a plurality of MCH be present, schedule information is such as What sends and selected corresponding MCS to need to be designed.

Meanwhile multiple MCH are had according to present technology, a MBSFN region, also just there are multiple MCS, each MCH to have one Individual DSI, these DSI are which kind of MCS used, and are current urgent problems.

The content of the invention

The technical problem to be solved by the invention is to provide a kind of method and system for transmitting dynamic scheduling information, it is used for UE service dispatching informations are indicated under a plurality of MCH scene.

In order to solve the above problems, the invention discloses a kind of transmission DSI method, including：

All MCH DSI is merged into a new DSI by network side equipment, and is sent on the main MCH for carrying MCCH The new DSI；

User equipment receives the new DSI on the main MCH.

Further, in the above method, the new DSI is using identical with the Modulation and Coding Scheme (MCS) of the MCCH MCS, the user equipment obtains MCCH MCS from system broadcast message, to decode the new DSI；Or

The new DSI reads system broadcast message simultaneously using the MCS configured in system broadcast message, the user equipment Obtain DSI MCS and then decode the new DSI.

Wherein, the MCS fingers identical with the MCS of the MCCH that the new DSI is used, MCS that the new DSI is used and The MCS of the MCCH is always identical；Or

Only during the main MCH carries the MCCH, the MCS phases for the MCS and MCCH that the new DSI is used Together.

The transmission cycle of the new DSI is the greatest common divisor of all MCH DSI dispatching cycle in cell, or For the least common multiple of all MCH DSI dispatching cycle.

During the user equipment receives the new DSI, if only receiving the multimedia broadcasting and group interested to it When broadcasting the DSI of business (MBMS), the first MCH of the MBMS according to interested to carrying it dispatching cycle, and it is described In the new DSI transmission cycle, determine the reception cycle of the new DSI, and it is determined that the reception cycle in receive it is described new DSI；

Wherein, it is described to receive the DSI for including the first MCH in the new DSI received in the cycle.

When the user equipment receives new DSI within the reception cycle, since new DSI original position, jump M byte length is crossed, starts to read the sub-frame allocation information of the MBMS interested to it；

Wherein, M=n1*Bit₁+n2*Bit₂+….+nk*Bit_k+r*Bit；

N1 represents to appear on the 1st MCH before the first MCH how many business altogether, n1* in new DSI Bit₁The 1st MCH DSI total length is represented, the like, nk represents to appear in new DSI before the first MCH How many business altogether on k-th of MCH, nk*Bit_kK-th of MCH DSI total length is represented, r represents the first MCH The number of the upper MBMS for sending user's MBMS foregoing description carrying interested, r*Bit represent r business institute altogether The byte length of distribution.

The invention also discloses a kind of transmission DSI system, including network side equipment and user equipment, wherein：

The network side equipment, for all MCH DSI to be merged into a new DSI, and carrying MCCH master The new DSI is sent on MCH；

The user equipment, for receiving the new DSI on the main MCH.

Further, in said system, the network side equipment, the new DSI sent on the main MCH is used and institute MCCH MCS identical MCS are stated, or using the MCS configured in system broadcast message；

The user equipment, MCCH MCS is obtained from system broadcast message, to decode the new DSI, or read System broadcast message and the MCS decodings new DSI for obtaining DSI.

Further, the user equipment, during the new DSI is received, it is served only for receiving interested to it MBMS DSI, and the first MCH of the MBMS according to interested to carrying it dispatching cycle, and the new DSI Send the cycle, determine reception cycle of the new DSI, it is determined that the reception cycle in receive the new DSI；

Wherein, the user equipment, when receiving new DSI within the reception cycle, opened from new DSI original position Begin, skip M byte length, start to read the sub-frame allocation information of the MBMS interested to it；

Wherein, M=n1*Bit₁+n2*Bit₂+….+nk*Bit_k+r*Bit；

After technical solution of the present invention, receiving terminal can be accurately obtained the MBMS for needing to receive in a tune The more specific location information spent in the cycle, specifically, when UE needs to receive multiple MBMSs simultaneously, it can disposably obtain this The schedule information of a little business, so as to avoid the scattered schedule information of more readings of UE, UE electric power is saved, improves reception effect Rate, and there is good wave point signaling transmitting efficiency.

Brief description of the drawings

Fig. 1 is that the MSAP occasion of a MCH in the prior art distribute the schematic diagram of multicast resource；

Fig. 2 (a) is Scheduling Period 1 resource allocation schematic diagram；

Fig. 2 (b) is Scheduling Period 2 resource allocation schematic diagram；

Fig. 2 (c) is Scheduling Period 3 resource allocation schematic diagram；

Fig. 3 is the configuration schematic diagram of multiple MCH dynamic scheduling information in the prior art；

Fig. 4 is configuration schematic diagram of all service bearers of multiple MCH in the prior art in MCCH message；

Fig. 5 is the schematic diagram of MCH DSI contents in the prior art；

Fig. 6 is the flow chart of embodiment 1；

Fig. 7 is the flow chart of embodiment 2；

Fig. 8 is the relation schematic diagram in assignment period and United Dispatching cycle in the present invention；

Fig. 9 is that the dynamic scheduling information of multiple MCH in the present invention is uniformly configured to DSI schematic diagram；

Figure 10 is the schematic diagram of a unified DSI in the present invention；

Figure 11 is the flow chart of the DSI that UE receives its MBMS interested in the present embodiment.

Embodiment

Technical solution of the present invention is described in further detail with reference to specific embodiments and the drawings.

A kind of system of transmitting scheduling information, including network side equipment and user equipment.

Network side equipment, for sending main MCH DSI on the main MCH for carrying MCCH, in addition to main MCH Other MCH DSI is sent on other MCH respectively, wherein, it can be MCCH that other MCH, which use same MCS, the same MCS, The MCS that MCS is either set, the same MCS of default specific practice can be one use of configuration in system broadcast message Also include other MCH DSI in all DSI MCS, including main MCH DSI, that is to say, that one is configured in system broadcast message The individual MCS dedicated for DSI；

In the present embodiment, main MCH can be main using MCCH MCS or using the MCS configured in system broadcast message Can be always identical with MCCH MCS, or only on main MCH carry MCCH (i.e. when MCH can use MCCH MCS There is MCCH on main MCH) when, main MCH MCS and MCCH MCS are identical.

User equipment (UE), for receiving main MCH DSI on main MCH, receive other MCH's respectively on other MCH DSI, wherein, when other MCH use MCCH MCS as same MCS, UE can obtain MCCH's from system broadcast message MCS, to decode other MCH DSI, for other MCH using when obtaining same MCS from system broadcast message, UE is wide from system The MCS that DSI is obtained in message is broadcast, and other MCH DSI is decoded according to this MCS；

Correspondingly, when main MCH uses MCCH MCS, UE can obtain MCCH MCS from system broadcast message, with Decode main MCH DSI；When MCH uses the MCS configured in system broadcast message, UE obtains this MCS simultaneously from system broadcast message Decode main MCH DSI.

Also a kind of system of transmitting scheduling information, wherein, network side equipment, for all MCH DSI to be merged into one The new DSI of bar (i.e. DSI-new), and DSI-new is sent on the main MCH for carrying MCCH, wherein, DSI-new can be used With MCCH MCS identical MCS, or use in system broadcast message for the DSI-new configure a MCS, DSI-new's Send the greatest common divisor that the cycle can be all MCH DSI dispatching cycle in cell, or the tune of the DSI for all MCH Spend the least common multiple in cycle；

UE, for receiving DSI-new on main MCH, MCCH MCS is obtained from system broadcast message, to decode DSI- MCS is read in new, or system broadcast message and decodes DSI-new；

In a preferred embodiment, UE can also only receive the MBMS industry interested to it during DSI-new is received The DSI of business, and according to the dispatching cycle for the first MCH for carrying the MBMS, and new DSI-new transmission cycle, really Determine the DSI-new reception cycle, it is determined that the reception cycle in receive DSI-new, wherein, UE determine the reception cycle in receive DSI-new in include the first MCH DSI；

UE since DSI-new original position, skips M byte length when receiving reception DSI-new in the cycle, Start to read the sub-frame allocation information of the MBMS interested to it；

Wherein, M=n1*Bit₁+n2*Bit₂+….+nk*Bit_k+r*Bit；

The detailed process of said system transmitting scheduling information is described below.

Embodiment 1

The present embodiment has one or more MCH, each MCH to have a DSI with a MBSFN region, and each DSI is held Exemplified by being loaded on MAC CE, illustrate the process for transmitting dynamic scheduling information, (wherein, be herein referred to as the MCH for carrying MCCH Main MCH), as shown in fig. 6, comprising the following steps：

Step 601, network side equipment send each bar MCH DSI respectively on each bar MCH, wherein, sent on main MCH The MCS that use of DSI are identical with MCCH MCS or system broadcast message in for all MCH configurations same MCS, in main MCH The DSI sent on other MCH in addition uses same MCS；

In this step, the MCS fingers identical with MCCH MCS that the DSI sent on main MCH is used, main MCH DSI are adopted MCS and MCCH MCS is always identical, or only during main MCH carries MCCH (when there is MCCH on i.e. main MCH), The MCS that the DSI of the main MCH is used is identical with MCCH MCS, and during main MCH does not carry MCCH, the DSI of the main MCH is adopted MCS can be identical with the MTCH carried on main MCH MCS；

When sending DSI on other MCH beyond main MCH, the same MCS that other MCH DSI is used can be with MCCH's MCS is identical, or the same MCS to configure in system broadcast message (MCS configured in system broadcast message typically with each MCH The MTCH of upper carrying MCS is differed).

Step 602：UE receives each bar MCH DSI respectively on each bar MCH, wherein, decode each MCH according to corresponding MCS DSI；

Wherein, when UE receives each bar MCH DSI, corresponding processing can be done, i.e., as main MCH according to the configuration of network side The DSI MCS that uses and MCCH MCS it is always identical when, UE decodes main MCH DSI according to MCCH MCS, as main MCH During carrying MCCH, when the MCS of main MCH DSI uses is just identical with MCCH MCS, UE is then only main MCH carryings MCCH's Period, main MCH DSI is decoded with MCCH MCS, when main MCH DSI is same using being configured in system broadcast message During MCS, UE reads system broadcast message, obtains this same MCS and decodes main MCH DSI；

Equally, when other MCH DSI is always used with MCCH identical MCS, UE decodes other according to MCCH MCS MCH DSI, when other MCH DSI is using the same MCS configured in system broadcast message, UE can then read system Broadcast the message and obtain this same MCS, so as to be decoded to other MCH DSI.

Embodiment 2

Exemplified by the present embodiment equally there are one or more MCH by a MBSFN region, illustrate to transmit dynamic scheduling information Process, as shown in fig. 7, comprises following steps：

Step 700：The DSI of all MCH in cell is merged into a new DSI (DSI-new) by network side equipment, and is held It is loaded in a MAC control element (referred to as MAC CE)；

Step 701：Network side equipment sends the DSI-new on main MCH, wherein, DSI-new use MCS with MCCH MCS is identical or system broadcast message on the MCS that configures；

Wherein, the MCS fingers identical with MCCH MCS that the DSI-new sent on main MCH is used, main MCH DSI-new The MCS and MCCH of use MCS are always identical, or only (MCCH occur on i.e. main MCH during main MCH carries MCCH When), the MCS that the DSI-new on the main MCH is used is identical with MCCH MCS；

Network side equipment periodically sends DSI-new on main MCH, and the DSI-new transmission cycle can be in cell Minimum MSAP occasion period in all MCH MSAP occasion period, or the MSAP for all MCH Occasion period least common multiple.

Step 702：UE receives DSI-new on main MCH, and decodes DSI-new according to corresponding MCS；

In the step, when the MCS that DSI-new is used is identical with MCCH MCS, UE is according to the institute from system broadcast message The MCCH of acquisition MCS decoding DSI-new, when the MCS that DSI-new is used is the MCS configured in system broadcast message, UE is read Take system broadcast message and obtain MCS and then decode DSI-new；

Preferably, during UE receives DSI-new, the DSI of the MBMS interested to it can be only received, now, UE according to DSI-new send the cycle and carry its interested to MBMS MCH MSAP occasion period, The reception cycle for determining UE, (i.e. UE needed to send in which of DSI-new and read DSI-new on the cycle to obtain interested to it MBMS DSI), and when UE determine receive the cycle after, can also further skip other business, only read The DSI of the MBMS interested of its in DSI-new contents, i.e. UE, which need to know, is carrying its MBMS interested Which of multiple MCH before MCH MCH DSI is also appeared in the DSI-new；UE is directly skipped without reading this A little MCH DSI contents, directly distribute letter to the MBSFN sub-frame that the business is read on the DSI for the MCH for carrying its business interested Breath.

Specifically, when there is N number of MCH in a MBSFN region, N is numbered and is followed successively by 1,2 ..., and each MCH has one Dispatching cycle (i.e. MSAP occasion), in these MSAP occasion most short dispatching cycle in cycle be referred to as United Dispatching week Phase, United Dispatching cycle=min { SP1, SP2 ... .SPn }, wherein SPn are n-th MCH dispatching cycle, the United Dispatching cycle Can also be the greatest common divisor of all MCH dispatching cycles, such as：There are 5 MCH, these MCH scheduling in a MBSFN region Cycle is respectively 160ms, 320ms, 640ms, 320ms and 160ms, then all MCH in the MBSFN regions United Dispatching cycle Sent for 160ms, DSI-new on all MCH in the MBSFN region United Dispatching cycle.Network side is a MBSFN During a plurality of MCH distribution MBSFN sub-frame resources in region, resource is carried out using the maximum of these MCH dispatching cycle as the cycle Distribution, its assignment period are max { SP1, SP2 ... .SPn }, and wherein n is n-th of MCH dispatching cycle, and assignment period can also It is the least common multiple of whole MCH dispatching cycles, as shown in Figure 8.

Can be all MCH and network side equipment sends the DSI-new cycles (hereinafter referred to as DSI-new transmission cycle) The United Dispatching cycle, or all MCH assignment period, so, transmission cycles of the DSI-new in each DSI-new During upper transmission, content therein includes part or all of MCH dynamic scheduling information；

In this DSI-new, all MBMSs, according to MCH order, be arranged in order, that is, so industry The arrangement of business be according to its MCH numbering from small to large, such as：MCH1 (MTCH1, MTCH2 ... MTCHn), MCH2 (MTCH1, MTCH2 ... MTCHn) ... .MCHk (MTCH1, MTCH2 ... MTCHn).Because all MCH row is indicated in MCCH message Row order, and specify the ordering of every MCH all business, in other words, it can be put in order according to MCH in MCCH To determine DSI order, so network side and UE are known that particular location of each MBMS in DSI-new, so, Also without the Logic Channel Identifier for explicitly indicating each business in DSI-new, it is only necessary to configure { start/ successively End, start/end ... .start/end }, it is followed successively by first MCH first business, first MCH second industry Business ... m-th of MCH first business, m-th of MCH second business ..., n-th of MCH first business, n-th Last MCH (MCHm) of last MCH (MCHm) of MCH second business ... first business ... last Individual business, such as Fig. 9.

In fact, each MCH has the MSAP occasion period of itself, that is to say, that if DSI-new hair When to send the cycle be all MCH United Dispatching cycle, some MCH DSI is not present in configured DSI-new.Than Such as, there are 3 MCH, its MSAP occasion period is respectively 320ms, 160ms, 640ms, if the DSI-new transmission cycle For all MCH United Dispatching cycle (i.e. 160ms) when, then the DSI contents that DSI-new includes are：

During 160ms, { DSI1, DSI2, DSI3 }

During 320ms, { DSI2 }

During 480ms, { DSI1, DSI2 }

During 640ms, { DSI2 }

I.e. in all MCH assignment period (640ms), that is, the DSI- on 4 United Dispatching cycles (160ms) New content is：There is the 3 MCH used transfer information content in first United Dispatching cycle (160ms)；In second system On one dispatching cycle (160ms) only have MCH1 schedule information contents, have on the 3rd United Dispatching cycle (160ms) MCH1 and MCH2 schedule information content, there was only MCH1 schedule information content on the 4th United Dispatching cycle (160ms).This four The United Dispatching cycle (160ms) constitutes an assignment period, and MCH1 has been scheduled 4 times in 640ms assignment period, and MCH2 has been scheduled 2 times, and MCH3 has only been scheduled 1 time, such as Figure 10.

The list of all MCH all MBMSs is not only configured with MCCH message, and is also configured with every MCH MSAP occasion period.The present embodiment still illustrates UE how on a DSI-new by taking three MCH in scheming as an example Correctly obtain the distribution condition of the MBSFN sub-frame of each MBMS.

For convenience, it is assumed that there are 2 business on each MCH, a total of 6 business, respectively service1, Service2 ... .service6, wherein service1 and service2 are carried on first MCH, service3 and Service4 is carried on second MCH, and service5 and service6 are carried on the 3rd MCH：Service1, service2}→MCH1；{ service3, service4 } → MCH2；{ service5, service6 } → MCH3.

If indicated using 3 DSI of the prior art, for { MTCH1, MTCH2 } → MCH1；MTCH1, MTCH2}→MCH2；{ MTCH1, MTCH2 } → MCH3.UE can be according to the order of the MCH on MCCH further according to logic channel mark Know the distribution condition for the MBSFN sub-frame for obtaining each business, DSI 1 → { start/end, start/end }；DSI 2→ {start/end,start/end}；DSI 3→{start/end,start/end}.In the present invention, DSI-new content is { start/end, start/end, start/end, start/end, start/end, start/end }, substantially it is successively The content of { DSI1, DSI2, DSI3 }.

Because different MCH has different MSAP occasion period, such as Figure 10, in the different United Dispatching cycles On be likely to occur part MCH DSI it is as follows：

160ms, { start/end, start/end, start/end, start/end, start/end, start/end }

320ms, { start/end }

480ms, { start/end, start/end }

640ms, { start/end }

The resource allocation conditions of 6 business are known that in first MSAP occasion period, UE；At second MSAP occasion period, UE know that only a MCH (i.e. MCH1) has DSI, so as to obtain the subframe of business 1 and 2 money Information is distributed in source；In the 3rd MSAP occasion period, UE, which knows, has 2 MCH (MCH1 and MCH2) to have DSI, so as to The sub-frame resources distribution information of acquisition business 1,2,3,4；Know only one in the 4th MSAP occasion period, UE MCH (MCH1) has DSI, so as to obtain the sub-frame resources of business 1 and 2 distribution information.

Without loss of generality, then give one example.When there is 5 MCH (MCH1, MCH2 ... MCH5), it is assumed that have 2 on each MCH Individual business, business is { service1, service2 ... .service10 } altogether, and each MCH MSAP occasion Period is { 320,160,480,640,160 }.

UE obtains each MCH MSAP occasion period from MCCH, also it is known that in different MSAP Which MCH DSI contents included in occasion period, DSI-new, such as in the 3rd MSAP occasion Period, DSI-new include MCH1, MCH2, MCH5 dynamic scheduling information, then DSI-new={ start/end, start/ End, start/end, start/end, start/end, start/end }, UE is known that respectively service1, Service2, service3, service4, service9, service10 MBSFN sub-frame distribution information, MCH3 and MCH4 do not have There is DSI.

In a MBSFN region, UE may be only interested in a MBMS on a MCH, and UE need not be read In DSI-new contents on each MCH the sub-frame resources of MBMS distribution information.UE knows that its is interested according to MCCH message Business on that MCH, the MSAP occasion period of the MCH are known further according to MCCH message, can be some The individual United Dispatching cycle for carrying its DSI reads DSI-new.UE can read MCCH, obtain its business interested at which On individual MCH, in which United Dispatching cycle reading DSI-new, when UE reads DSI-new contents, it can be skipped and do not felt The MCH and MTCH of interest, directly read its MTCH interested sub-frame allocation information.

If the business carried on a total of N number of MCH on a MBSFN region, each MCH has M, these information Configuration is arranged in order as 1~M business on MCH1 in MCCH message, 1~M business ... ..MCH-N on MCH2 On 1~M business.So, some UE is interested in i-th of MBMS, then receives the MBMS as follows DSI, as shown in figure 11：

Step 1100：UE is according to the MCH for carrying i business MSAP occasion period, and DSI-new The cycle is sent, it is determined that the cycle (determining that UE reads DSI-new in United Dispatching cycle on which) is received, wherein, it is identified Receive the DSI contents for necessarily including the MCH in the DSI-new contents sent on the cycle；

Step 1101：UE reads its i-th of MBMS industry interested in DSI-new contents in the identified reception cycle Business：

In the step, UE read i-th of MBMS when, UE need know carry i-th of MBMS MCH it In preceding multiple MCH (in the list for configuring all MCH in MCCH message, several MCH before the MCH sequence numbers), which A little MCH DSI is also appeared in the DSI-new, and specifically, UE is by reading the MSAP of all MCH in MCCH message Occasion period, you can to know on this United Dispatching cycle, whether include these MCH's in DSI-new DSI contents；

The DSI contents that UE can be skipped directly without reading these MCH afterwards, directly arrive and carry its business interested MCH DSI on read the MBMS MBSFN sub-frame distribution information.

Can visually it be illustrated using a formula for above step 1100 and 1101, if there is N in a MBSFN region The business carried on individual MCH (1,2, n ..., N), each MCH is (1,2 ... M)_n.Business i interested UE is in n-th of MCH (MCH-n) on.On the DSI-new for the DSI that some carries MCH-n, the DSI for also having k MCH before the MCH-n is also held It is loaded on DSI-new.Meanwhile the MBSFN sub-frame distribution of each business is using the start/end of same bits length, equal to holding Its MCH MSAPoccasion perod are carried, such as：It can be used when MSAP occasionperiod are equal to 320ms 8bit。

First：UE skips A byte length since DSI-new start bits, it is possible to reaches n-th of i-th of business In MCH DSI contents, wherein：

A=n1*Bit₁+n2*Bit₂+….+nk*Bit_k

In above formula：N1 represents to appear on the 1st MCH before the first MCH how many industry altogether in new DSI Business, n1*Bit₁The 1st MCH DSI total length is represented, the like, before nk represents to appear in the MCH in DSI-new How many business altogether on k-th of MCH, nk*Bit_kK-th of MCH DSI total length is represented, wherein, due to every MCH MSAPoccasion period can be different, so the bit length Bit that the MBSFN sub-frame of business is distributed MCH on (start/end) can be different, n1, n2 ... nk can be discontinuous, because allowing neither one or multiple on DSI-new MCH DSI contents.

Secondly：UE skips B byte length again, reads the sub-frame allocation information of i-th of business.Wherein：

B=r*Bit (start/end).

I-th of service bearer in each MCH (such as：N-th of MCH) on, a total of m business, i-th of business on the MCH There is r service bearer (r on the MCH before<m).R*Bit represents the byte length that r business is distributed altogether.

In a word, according to MCCH message, UE is known that reads DSI-new on which United Dispatching cycle, and can be only Read the MBSFN sub-frame distribution information of its business interested.For example if interested only to service5, UE needs 1st United Dispatching cycle reads DSI-new, and other United Dispatching cycles will not carry service5 sub-frame resources configuration Information.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

A kind of 1. method for transmitting dynamic scheduling information DSI, it is characterised in that this method includes：

All-multicast channel MCH DSI is merged into a new DSI by network side equipment, and is carrying multicast control channel The new DSI is sent on MCCH main MCH；

User equipment receives the new DSI on the main MCH；

The new DSI's sends the greatest common divisor that the cycle is all MCH DSI dispatching cycle in cell, or is institute There is the least common multiple of MCH DSI dispatching cycle.
2. the method as described in claim 1, it is characterised in that

The new DSI is wide from system using the Modulation and Coding Scheme MCS identicals MCS with the MCCH, the user equipment The MCS that MCCH is obtained in message is broadcast, to decode the new DSI；Or

Using the MCS configured in system broadcast message, the user equipment reads system broadcast message and obtained the new DSI Then DSI MCS decodes the new DSI.
3. method as claimed in claim 2, it is characterised in that

MCS that the new DSI is used is identical with the MCS of the MCCH to be referred to, the MCS of the new DSI uses with it is described MCCH MCS is always identical；Or

Only during the main MCH carries the MCCH, the MCS that the new DSI is used is identical with the MCS of the MCCH.
4. the method as described in claim 1, it is characterised in that

During the user equipment receives the new DSI, if only receiving the multimedia broadcasting and multicast industry interested to it During business MBMS DSI, the first MCH of the MBMS according to interested to carrying it dispatching cycle, and the new DSI The transmission cycle, determine reception cycle of the new DSI, and it is determined that the reception cycle in receive the new DSI；

Wherein, it is described to receive the DSI for including the first MCH in the new DSI received in the cycle.
5. method as claimed in claim 4, it is characterised in that

When the user equipment receives new DSI within the reception cycle, since new DSI original position, M are skipped Byte length, start to read the sub-frame allocation information of the MBMS interested to it；

Wherein, M=n1*Bit₁+n2*Bit₂+....+nk*Bit_k+r*Bit；

N1 represents to appear on the 1st MCH before the first MCH how many business altogether, n1*Bit in new DSI₁Table Show the 1st MCH DSI total length, the like, nk represents to appear in k-th before the first MCH in new DSI How many business altogether on MCH, nk*Bit_kK-th of MCH DSI total length is represented, r represents to send on the first MCH The number of the MBMS of user's MBMS foregoing description carrying interested, r*Bit represent what r business was distributed altogether Byte length.
6. a kind of system for transmitting dynamic scheduling information DSI, it is characterised in that the system includes network side equipment and user sets It is standby, wherein：

The network side equipment, for all-multicast channel MCH DSI to be merged into a new DSI, and carrying multicast The new DSI is sent on control channel MCCH main MCH；

The user equipment, for receiving the new DSI on the main MCH；

The new DSI's sends the greatest common divisor that the cycle is all MCH DSI dispatching cycle in cell, or is institute There is the least common multiple of MCH DSI dispatching cycle.
7. system as claimed in claim 6, it is characterised in that

The network side equipment, the new DSI sent on the main MCH is using the Modulation and Coding Scheme MCS with the MCCH Identical MCS, or using the MCS configured in system broadcast message；

The user equipment, MCCH MCS is obtained from system broadcast message, to decode the new DSI, or read system The MCS for broadcasting the message and obtaining DSI decodes the new DSI.
8. system as claimed in claim 7, it is characterised in that

MCS that the new DSI is used is identical with the MCS of the MCCH to be referred to, the MCS of the new DSI uses with it is described MCCH MCS is always identical；Or

Only during the main MCH carries the MCCH, the MCS that the new DSI is used is identical with the MCS of the MCCH.
9. system as claimed in claim 6, it is characterised in that

The user equipment, during the new DSI is received, it is served only for receiving multimedia broadcasting and group interested to it Business MBMS DSI, and the first MCH of the MBMS according to interested to carrying it dispatching cycle are broadcast, and it is described new DSI the transmission cycle, determine reception cycle of the new DSI, it is determined that the reception cycle in receive the new DSI；

Wherein, it is described to receive the DSI for including the first MCH in the new DSI received in the cycle.
10. system as claimed in claim 9, it is characterised in that

The user equipment, when receiving new DSI within the reception cycle, since new DSI original position, skip M Individual byte length, start to read the sub-frame allocation information of the MBMS interested to it；

Wherein, M=n1*Bit₁+n2*Bit₂+....+nk*Bit_k+r*Bit；

N1 represents to appear on the 1st MCH before the first MCH how many business altogether, n1*Bit in new DSI₁Table Show the 1st MCH DSI total length, the like, nk represents to appear in k-th before the first MCH in new DSI How many business altogether on MCH, nk*Bit_kK-th of MCH DSI total length is represented, r represents to send on the first MCH The number of the MBMS of user's MBMS foregoing description carrying interested, r*Bit represent what r business was distributed altogether Byte length.