CN102035806B

CN102035806B - Method and system for transmitting dynamic scheduling information (DSI)

Info

Publication number: CN102035806B
Application number: CN200910178914.6A
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: 2014-12-10
Anticipated expiration: 2029-09-29
Also published as: CN102035806A; WO2011038582A1

Abstract

The invention discloses a method and system for transmitting dynamic scheduling information (DSI), which relates to a long term evolution (LTE) system. The method provided by the invention comprises the following steps: network side equipment sends DSI of a main multicast channel (MCH) on the main MCH loaded with a multicast control channel (MCCH), and respectively sends DSI of other MCHs to the other MCHs except the main MCH, wherein the DSI of the other MCHs adopts the same modulation and coding scheme (MCS); and user equipment receives the DSI of the main MCH from the main MCH and respectively receives the DSI of the other MCHs from the other MCHs, wherein the user equipment decodes the DSI of the other MCHs according to the same MCS. By the technical scheme in the invention, a receiving terminal can accurately acquire the concrete position information of the multimedia broadcast multicast service (MBMS) to be received in one scheduling cycle.

Description

A kind of method and system of transmitting dynamic scheduling information

Technical field

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

Background technology

Along with the fast development of Internet and popularizing of large-screen multi-functional mobile phone, a large amount of Mobile data multimedia services and various high bandwidth multimedia service have been there is, for example, video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has met the business demand that mobile subscriber constantly rises on the one hand, simultaneously also for mobile operator brings new business growth point.These Mobile data multimedia services require a plurality of users can receive identical data simultaneously, compare with general data service, have the features such as data volume is large, duration length, delay sensitive.

In order to effectively utilize mobile network resource, third generation partner program (3rd GenerationPartnership Project, referred to as 3GPP) MBMS business proposed, this business is a kind of technology of data that transmits from a data source to a plurality of targets, realize sharing of network (comprising core net and Access Network) resource, improved the utilance of Internet resources (especially air interface resource).The MBMS of 3GPP definition not only can realize classes of messages multicast and the broadcast of plain text low rate, but also can realize broadcast and the multicast of high-speed multimedia business, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, for the development of 3G provides better business prospect.

In LTE, MBMS business can adopt multicast pattern mode, be called MBSFN (Multicast/Broadcast over Single Frequency Network, single frequency network multicast broadcast) sending mode, the MBMS business that adopts multicast pattern to send, also referred to as MBSFN business, can be after a plurality of communities adopt identical modulation coded format, adopt identical physical resource generation identical content, the feature of MBMS cell transmission is as follows:

1) in the inter-sync of MBSFN region, transmit; 2) support many cell MBMS transmission to merge; 3) MTCH (Multicast traffic Channel, multicast service channel) and MCCH (MulticastControl Channel, multicast control channel) under p-T-m (point-to-multipoint) pattern, be mapped on MCH (Multicast Channel); 4) MBSFN retaining zone, MBSNF region, MBSFN transmission, advertisement, retains community, by the semi-static configuration of Operation and Maintenance.

The UE of a plurality of like this communities (User equipment, subscriber equipment) can receive the MBMS data that a plurality of contents are identical and carry out SFN (single frequency network) and merge, thereby can improve the gain that receives signal.Adopt identical physical resource and formed a MBSFN region with a plurality of communities that MBSFN sending mode sends same MBMS business.

In actual LTE networking, on a MBSFN region, there are several MBSFN business, these all MBSFN business that belong to same MBSFN region are called a MBSFN service groups, that is to say that a MBSFN service groups only belongs to a MBSFN region.A MBSFN region comprises a plurality of communities, and each community has configured an identical MBSFN service groups.The data channel MTCH that possesses a plurality of MBSFN business in identical MBSFN region, and the control channel MCCH of MBSFN business can be multiplexed into a MCH (Multicast Chnanel, Multicast Channel).The MCCH in identical MBSFN region and a plurality of MTCH, many logic channels can be mapped on same transmission channel MCH;

In LTE system, MCH is transmission channel, feature is to carry out point-to-multipoint transmission, corresponding physical resource is that system is the multicast resource that MBMS transmission business (MTCH) is distributed, article one, MCH is carried on some multicast resources, these multicast resources comprise in several MBSFN frames and MBSFN subframe, as shown in Figure 1 represent non-MBSFN frame, represent MBSFN frame, represent non-MBSFN subframe, represent MBSFN subframe, represent fixing no.These multicast resources adopt a set of MSAP (MBSFN subframe allocation pattern, MBSFN sub-frame allocation pattern) configure, comprise radio frames allocation model and wireless sub-frame allocation model, the multicast resource in each MBSFN region can be take subframe and according to certain pattern, is divided into a plurality of groups as unit, each group can form a MCH, or a plurality of groups form a MCH.The pattern using when each MCH forms so is just called the MSAP of this MCH, and a MSAP describes the physical resource of a MCH channel.Can there be one or more MCH each community, the unique corresponding MSAP of each MCH, and uniquely belong to a MBSFN region, but can there be one or more MCH in each MBSFN region, the collocation method of the multicast resource that each MCH configures is to configure a set of MSAP for each MCH.

As shown in Figure 2, in order to improve the transmitting efficiency of MTCH, a plurality of MTCH of the upper carrying of each MCH can adopt the method for dynamic dispatching, can the above MTCH of 2 or 2 is multiplexing in same MBSFN subframe and take the part resource of this subframe by dynamic dispatching, Fig. 2 (a), Fig. 2 (b) and Fig. 2 (c) are respectively the resource of Scheduling Period 1, Scheduling Period 2, Scheduling Period 3 and distribute schematic diagram.In existing public technology, in MSAP concept, introduce MSAP occasion (MSAP opportunity) simultaneously, it has indicated a dispatching cycle the included whole multicast resources of the corresponding MCH of certain MSAP in time period of (be a period of time of wave point, send in the MBSFN subframe scheduling resource that a plurality of business comprise successively in order within dispatching cycle).In a MSAP occasion, can send dynamic scheduling information (the Dynamic scheduling information of a plurality of MTCH and these MTCH, DSI, referred to as schedule information) refer to the information of the concrete positional information of business in dispatching cycle, dynamic scheduling information can send within dispatching cycle, or send within previous or several dispatching cycles of dispatching cycle, generally, schedule information should send to UE before the business datum transmission within the dispatching cycle of its indication), can also comprise MCCH, schedule information can be carried on MAC (medium access control) control section (MAC control element) MSAP occasion length and generally be fixed as 320ms.Similarly, being generally fixed as 320ms a dispatching cycle, can be also 2 ⁿ* 320ms (n=-3 ,-2 ,-1,0,1,2,3,4.....N), correspondingly, MSAP occasion time span is 40ms, 80ms, 160ms, 320ms, 640ms, 1280ms etc., a MSAP occasion time span is exactly a dispatching cycle also referred to as MSAP occasion period, also referred to as a dispatching cycle.Article one, MCH has distributed the one or more MBSFN subframes in one or more MBSFN frames by MSAP, and the subframe that wherein adopts multicast pattern to send is called MBSFN subframe, and the frame that contains MBSFN subframe is called MBSFN frame.There are many MCH in a MBSFN region, and every MCH has dispatching cycle (scheduling period) separately, also can be called MSAP occasion (period), the dispatching cycle of every MCH can be identical can be not identical yet.

In the prior art, as shown in Figure 3, each MCH is (in Fig. 3 be depicted as MCH1, be depicted as MCH2, be depicted as MCH3, be depicted as MCH4) there is a Scheduling Block that has carried its dynamic scheduling information DSI (in Fig. 3 shown in), usually DSI is carried on MAC SDU, is configured in the foremost of the MCH of its scheduling, while having carried MCCH on this MCH, on this MCH, has carried DSI simultaneously, and in the time of MCCH and MTCH, three's carrying is sequentially: DSI, MCCH and MTCH.

On each the MSAP occasion configuring at a MCH, carried schedule information, carry MTCH to the map information of auxiliary MSAP subframe, this map information determines by means of the MBSFN subframe numeral index relation within a dispatching cycle, and UE reads schedule information can know which MBSFN subframe each MTCH is dispensed in.UE can read its interested MTCH in corresponding MBSFN subframe, and ignore it, does not need the MBSFN subframe reading, thereby improves the MBMS business receiving efficiency of UE, saves the power consumption of UE.MBSFN subframe numbering described herein is to determine like this: a MCH is arranged in order to number consecutively in all MBSFN subframes of distributing within a dispatching cycle.The MBSFN number of subframes total amount that for example MCH channel distributes in one-period is 100, and subframe numbering from 0 to 99, or 1 to 100, can adopt start/end to represent the shared sub-frame resources of each MBMS business of the upper carrying of this MCH.

In existing LTE technology, a plurality of transmission channels are by the multiplexing MCH channel of following mode: a corresponding TTI (Transmission Time Interval) of subframe, in a TTI, can send an output block, a corresponding MAC PDU (medium access control layer protocol data cell).In a MACPDU, can comprise a plurality of MAC SDU (service data unit) and MAC CE (MAC Control Element, MAC control element), these MAC SDU can be from different logic channels, possible logic channel comprises MTCH, MCCH, MSCH etc., and MAC CE can carry dynamic scheduling information.These data from Different Logic channel send after being serially connected in MAC PDU together on physical channel.In order to distinguish the MAC SDU from Different Logic channel, in MAC PDU, carried identification information, concrete, there is the sign of logic channel, the positional informations of the data block of this logic channel in MACPDU etc., for the data block of receiving terminal difference Different Logic channel.

At a MBSFN area, have many MBMS business, each business has a service identification (service ID), also may have a session identification (session ID), in this MBSFN region, all MBMS business have a unique service ID.All business in a MBSFN area are carried on respectively on different MCH, the traffic assignments that every MCH is its carrying a Logic Channel Identifier (as: MTCH ID), on every MCH, service identification and Logic Channel Identifier are corresponding one by one like this.The span of logic channel be (0,1,2 ... 31), that is to say and on a MCH, can carry and distinguish maximum 32 logic channels.On different MCH, can there is identical Logic Channel Identifier, the service identification that these identical Logic Channel Identifiers are corresponding different, in other words, all business of a MBSFN area, identify with Logic Channel Identifier jointly to come to indicate uniquely by MCH.As Fig. 4.

Each DSI has indicated the MBSFN sub-frame resources of all MBMS traffic assignments on a MCH, can indicate (start/end) by beginning or the end subframe of each MBMS business.As shown in Figure 5.All business are all arranged in order according to the order of sequence, because the order of all MBMS business has been configured in MCCH message, so network side and UE have known the order of the upper all MBMS business of this MCH, so, in DSI, do not need explicitly to have indicated again the Logic Channel Identifier of MBMS business, only need to configure successively start/end, start/end ... .start/end}, in accompanying drawing 1, in fact 2 ..n does not exist in DSI content, is only for convenience.

Because the region of MBMS business transmission is different, may in certain community, can there are many MCH, carrying belongs to the business of different MBMS service areas respectively; In addition, because the QoS attribute of business is different, MBSFN region is many MCH of possible configuration also, every MCH configures different MCS (Moduling Coding Scheme, Modulation and Coding Scheme), carry respectively the MBMS business that different QoS requires, also comprise MCCH and the DSI of special qos requirement.Exist under the scene of many MCH, how schedule information sends and selects corresponding MCS to design.

Meanwhile, according to present technology, there are a plurality of MCH in a MBSFN region, also just has a plurality of MCS, each MCH to have a DSI, and which kind of MCS these DSI adopt, and are current urgent problems.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of method and system of transmitting dynamic scheduling information, for indicate UE service dispatching information under the scene of many MCH.

In order to address the above problem, the invention discloses the method for DSI of transmission a kind of, comprising:

Network equipment is carrying the DSI that sends main MCH on the main MCH of MCCH, sends respectively the DSI of other MCH on other MCH except described main MCH, and the DSI of described other MCH all adopts same MCS;

Subscriber equipment receives the DSI of main MCH on described main MCH, receives respectively the DSI of other MCH on described other MCH, and wherein, described subscriber equipment is according to the DSI of described other MCH of same MCS decoding.

Further, in said method, the MCS that the same MCS that the DSI of described other MCH adopts is described MCCH, described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the DSI of described other MCH that decode; Or

The same MCS that the DSI of described other MCH adopts is the MCS configuring in system broadcast message, then the decode DSI of described other MCH of described subscriber equipment reading system broadcast the MCS that obtains DSI.

Wherein, the MCS that the MCS that the DSI of described main MCH adopts is described MCCH, described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the DSI of the described main MCH that decodes; Or

The MCS that the DSI of described main MCH adopts is the MCS configuring in system broadcast message, then the decode DSI of described main MCH of described subscriber equipment reading system broadcast the MCS that obtains DSI.

The MCS that the MCS that the DSI of described main MCH adopts is described MCCH refers to, the MCS that the DSI of described main MCH adopts is always identical with the MCS of described MCCH; Or

Only described main MCH carry described MCCH during, the MCS that the DSI of described main MCH adopts is identical with the MCS of described MCCH.

A kind of method that the invention also discloses DSI of transmission, comprising:

Network equipment is merged into a new DSI by the DSI of all MCH, and on the main MCH of MCCH, sends described new DSI carrying;

Subscriber equipment receives described new DSI on described main MCH.

Further, in said method, described new DSI adopts the MCS identical with the Modulation and Coding Scheme (MCS) of described MCCH, and described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the described new DSI that decodes; Or

Described new DSI adopts the MCS configuring in system broadcast message, described subscriber equipment reading system broadcast the MCS that the obtains DSI described new DSI that then decodes.

Wherein, the MCS that described new DSI adopts and the identical finger of MCS of described MCCH, the MCS that described new DSI adopts is always identical with the MCS of described MCCH; Or

Only described main MCH carry described MCCH during, the MCS that described new DSI adopts is identical with the MCS of described MCCH.

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

Described subscriber equipment receives in described new DSI process, if while receiving only the DSI of its interested multimedia broadcasting and multicast service (MBMS), according to the dispatching cycle of a MCH of its interested MBMS business of carrying, and the transmission cycle of described new DSI, determine the receiving cycle of described new DSI, and in definite receiving cycle, receive described new DSI;

Wherein, the DSI that comprises a described MCH in the new DSI receiving in described receiving cycle.

When described subscriber equipment receives new DSI in described receiving cycle, from the original position of new DSI, skip M byte length, start to read the sub-frame allocation information of its interested MBMS business;

Wherein, M=n1*Bit ₁+ n2*Bit ₂+ ... .+nk*Bit _k+ r*Bit;

N1 represents that in new DSI, appearing at a described MCH the 1st MCH before above always has how many business, n1*Bit ₁the total length that represents the DSI of the 1st MCH, the like, nk represents that in new DSI, appearing at described MCH k MCH before above always has how many business, nk*Bit _kthe total length that represents the DSI of k MCH, r represents the number of the MBMS business of the interested MBMS business of the upper user of transmission of a described MCH described carrying before, r*Bit represents the byte length that r business distributed altogether.

The invention also discloses the system of a kind of DSI of transmission, comprise network equipment and subscriber equipment, wherein:

Described network equipment for carrying the DSI that sends main MCH on the main MCH of MCCH, sends respectively the DSI of other MCH on other MCH except described main MCH, and the DSI of described other MCH all adopts same MCS;

Described subscriber equipment for receive the DSI of main MCH on described main MCH, receives respectively the DSI of other MCH on described other MCH, and wherein, described subscriber equipment is according to the DSI of described other MCH of same MCS decoding.

Further, in said system, described network equipment, the MCS that the same MCS that the DSI of other MCH that send on described other MCH adopts is described MCCH, or the MCS for configuring in system broadcast message;

Described subscriber equipment for obtain the MCS of MCCH from system broadcast message, with the DSI of described other MCH that decodes, or obtains for the MCS of DSI the DSI of described other MCH of decoding from system broadcast message.

Wherein, described network equipment, the MCS that the MCS that the DSI of the main MCH sending on described main MCH adopts is described MCCH, or the MCS for configuring in system broadcast message;

Described subscriber equipment, for obtain the MCS of MCCH from system broadcast message, with the DSI of the described main MCH that decodes, or then the decode DSI of described main MCH of reading system broadcast the MCS that obtains DSI.

Wherein, the MCS that the MCS that the DSI of described main MCH adopts is described MCCH refers to, the MCS that the DSI of described main MCH adopts is always identical with the MCS of described MCCH; Or

Described network equipment, for the DSI of all MCH being merged into a new DSI, and sends described new DSI carrying on the main MCH of MCCH;

Described subscriber equipment, for receiving described new DSI on described main MCH.

Further, in said system, described network equipment, the new DSI sending on described main MCH adopts the MCS identical with the MCS of described MCCH, or adopts the MCS configuring in system broadcast message;

Described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the described new DSI that decodes, or reading system broadcast obtain the described new DSI of MCS decoding of DSI.

Further, described subscriber equipment, in receiving described new DSI process, only for receiving the DSI of its interested MBMS, and according to the dispatching cycle of a MCH of its interested MBMS business of carrying, and the transmission cycle of described new DSI, determine and the receiving cycle of described new DSI in definite receiving cycle, receive described new DSI;

Wherein, described subscriber equipment, while receiving new DSI in described receiving cycle, from the original position of new DSI, skips M byte length, starts to read the sub-frame allocation information of its interested MBMS business;

Wherein, M=n1*Bit ₁+ n2*Bit ₂+ ... .+nk*Bit _k+ r*Bit;

Adopt after technical solution of the present invention, receiving terminal can obtain MBMS business that need the to accept more specific location information within a dispatching cycle accurately, concrete, when UE need to receive a plurality of MBMS business simultaneously, schedule information that can disposable these business of acquisition, thus avoid UE to read the schedule information of dispersion for many times, saved UE electric power, improve receiving efficiency, and there is good wave point signaling transmitting efficiency.

Accompanying drawing explanation

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

Fig. 2 (a) is that the resource of Scheduling Period 1 is distributed schematic diagram;

Fig. 2 (b) is that the resource of Scheduling Period 2 is distributed schematic diagram;

Fig. 2 (c) is that the resource of Scheduling Period 3 is distributed schematic diagram;

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

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

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

Fig. 6 is the flow chart of embodiment 1;

Fig. 7 is the flow chart of embodiment 2;

Fig. 8 be in the present invention assignment period and United Dispatching cycle be related to schematic diagram;

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

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

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

Embodiment

Below in conjunction with specific embodiments and the drawings, technical solution of the present invention is described in further detail.

A system for transmitting scheduling information, comprises network equipment and subscriber equipment.

Network equipment, for carrying the DSI that sends main MCH on the main MCH of MCCH, on other MCH except main MCH, send respectively the DSI of other MCH, wherein, other MCH all adopt same MCS, this same MCS can be the MCS of MCCH or the MCS of setting, the specific practice of the same MCS of default can be in system broadcast message, to configure one for the MCS of all DSI, the DSI that comprises main MCH also comprises the DSI of other MCH, that is to say and in system broadcast message, configures a MCS who is specifically designed to DSI;

In the present embodiment, main MCH can adopt the MCS of MCCH or adopt the MCS configuring in system broadcast message, when main MCH can adopt the MCS of MCCH, can be always identical with the MCS of MCCH, or only on main MCH, carry MCCH when (occurring MCCH on main MCH), the MCS of main MCH is identical with the MCS of MCCH.

Subscriber equipment (UE), for receive the DSI of main MCH on main MCH, on other MCH, receive respectively the DSI of other MCH, wherein, the MCS that other MCH all adopt MCCH is during as same MCS, and UE can obtain the MCS of MCCH from system broadcast message, DSI with other MCH that decode, other MCH all adopt while obtaining same MCS from system broadcast message, and UE obtains the MCS of DSI from system broadcast message, and according to the decode DSI of other MCH of this MCS;

Correspondingly, when main MCH adopts the MCS of MCCH, UE can obtain the MCS of MCCH from system broadcast message, with the DSI of the main MCH that decodes; When MCH adopts the MCS configuring in system broadcast message, UE obtains the DSI of this MCS the main MCH that decodes from system broadcast message.

The system that also has a kind of transmitting scheduling information, wherein, network equipment, for the DSI of all MCH is merged into a new DSI (being DSI-new), and send DSI-new carrying on the main MCH of MCCH, wherein, DSI-new can adopt the MCS identical with the MCS of MCCH, or adopt in system broadcast message is a MCS of this DSI-new configuration, the transmission cycle of DSI-new can be the greatest common divisor of the dispatching cycle of the DSI of all MCH in community, or is the least common multiple of dispatching cycle of the DSI of all MCH;

UE for receive DSI-new on main MCH, obtains the MCS of MCCH from system broadcast message, with the DSI-new that decodes, or in system broadcast message, reads MCS the DSI-new that decodes;

In a preferred embodiment, UE is in receiving DSI-new process, can also receive only the DSI of its interested MBMS business, and according to the dispatching cycle of a MCH of this MBMS business of carrying, and the transmission cycle of new DSI-new, determine and the receiving cycle of DSI-new receive DSI-new in definite receiving cycle, wherein, the DSI that comprises a MCH in the DSI-new receiving in the definite receiving cycle of UE;

When UE receives DSI-new in receiving cycle, from the original position of DSI-new, skip M byte length, start to read the sub-frame allocation information of its interested MBMS business;

Wherein, M=n1*Bit ₁+ n2*Bit ₂+ ... .+nk*Bit _k+ r*Bit;

Introduce the detailed process of said system transmitting scheduling information below.

Embodiment 1

The present embodiment has one or more MCH with a MBSFN region, each MCH has a DSI, and it is example that each DSI is carried on MAC CE, the process of transmission dynamic scheduling information is described, (wherein, the MCH that carries MCCH is called to main MCH herein), as shown in Figure 6, comprise the following steps:

Step 601, network equipment send respectively the DSI of each MCH on each MCH, wherein, in the MCS that the DSI that sends on main MCH adopts or system broadcast message identical with the MCS of MCCH, be the same MCS of all MCH configurations, the DSI sending on main MCH other MCH in addition all adopts same MCS;

In this step, the MCS that the DSI sending on main MCH adopts and the identical finger of MCS of MCCH, the MCS that the DSI of main MCH adopts is always identical with the MCS of MCCH, or only during main MCH carrying MCCH (while there is MCCH on main MCH), the MCS that the DSI of this main MCH adopts is identical with the MCS of MCCH, and when main MCH do not carry MCCH during, the MCS that the DSI of this main MCH adopts can be identical with the MCS of the MTCH of the upper carrying of main MCH;

While sending DSI on other MCH beyond main MCH, the same MCS that the DSI of other MCH adopts can be identical with the MCS of MCCH, or the same MCS (MCS configuring in system broadcast message is generally not identical with the MCS of the upper MTCH carrying of each MCH) for configuring in system broadcast message.

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

Wherein, when UE receives the DSI of each MCH, can be according to the configuration of network side, do corresponding processing, when the MCS adopting as the DSI of main MCH and the MCS of MCCH are always identical, UE is according to the decode DSI of main MCH of the MCS of MCCH, during main MCH carrying MCCH, when the MCS ability that the DSI of main MCH adopts is identical with the MCS of MCCH, UE is only during main MCH carrying MCCH, with the decode DSI of main MCH of the MCS of MCCH, when the DSI of main MCH adopts the same MCS configuring in system broadcast message, UE reading system broadcast, obtain the DSI of this same MCS the main MCH that decodes,

Equally, when the DSI of other MCH always adopts the MCS identical with MCCH, UE is according to the decode DSI of other MCH of the MCS of MCCH, when the DSI of other MCH adopts the same MCS configuring in system broadcast message, UE can reading system broadcast and is obtained this same MCS, thereby the DSI of other MCH is decoded.

Embodiment 2

The present embodiment be take a MBSFN region equally has one or more MCH as example, and the process of transmission dynamic scheduling information is described, as shown in Figure 7, comprises the following steps:

Step 700: network equipment is merged into a new DSI (DSI-new) by the DSI of all MCH in community, and be carried in a MAC control element (referred to as MAC CE);

Step 701: network equipment sends described DSI-new on main MCH, wherein, the MCS configuring in the MCS that DSI-new adopts or system broadcast message identical with the MCS of MCCH;

Wherein, the MCS that the DSI-new sending on main MCH adopts and the identical finger of MCS of MCCH, the MCS that the DSI-new of main MCH adopts is always identical with the MCS of MCCH, or only, during main MCH carrying MCCH (while there is MCCH on main MCH), the MCS that the DSI-new on this main MCH adopts is identical with the MCS of MCCH;

Network equipment periodically sends DSI-new on main MCH, the transmission cycle of DSI-new can be MSAP occasionperiod minimum in the MSAP occasion period of all MCH in community, or is the least common multiple of the MSAP occasion period of all MCH.

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

In this step, when the MCS of DSI-new employing is identical with the MCS of MCCH, UE is according to the MCS decoding DSI-new of the MCCH obtaining from system broadcast message, when the MCS adopting as DSI-new is the MCS configuring in system broadcast message, UE reading system broadcast also obtains the MCS DSI-new that then decodes;

Preferably, UE receives in DSI-new process, can receive only the DSI of its interested MBMS business, now, UE is according to the MSAP occasion period of the MCH of the transmission cycle of DSI-new and its interested MBMS business of carrying, determine the receiving cycle (being that UE need to read DSI-new to obtain the DSI of its interested MBMS business in transmission cycle on which of DSI-new) of UE, and determined after receiving cycle as UE, can also skip further other business, only read the DSI of its interested MBMS business in DSI-new content, be that UE need to know that the DSI of which MCH in a plurality of MCH before the MCH that has carried its interested MBMS business also appears in this DSI-new, UE directly skips and does not need to read the DSI content of these MCH, directly to the MBSFN sub-frame allocation information that reads this business on the DSI of the MCH of its business interested of carrying.

Particularly, in a MBSFN region, there is N MCH, numbering is followed successively by 1, 2, ... N, and each MCH has a dispatching cycle (being MSAP occasion), in these MSAP occasion, be called the United Dispatching cycle the shortest dispatching cycle in cycle, United Dispatching cycle=min{SP1, SP2, ... .SPn}, wherein SPn is the dispatching cycle of n MCH, the United Dispatching cycle can be also all MCH greatest common divisor of dispatching cycle, as: in a MBSFN region, there are 5 MCH, be respectively 160ms the dispatching cycle of these MCH, 320ms, 640ms, 320ms and 160ms, the United Dispatching cycle of all MCH in this MBSFN region is 160ms, DSI-new sends on the cycle at the United Dispatching of all MCH in a MBSFN region.When network side is many MCH distribution MBSFN sub-frame resources in a MBSFN region, the maximum of these MCH dispatching cycle of take is carried out the distribution of resource as the cycle, its assignment period is max{SP1, SP2, ... .SPn}, wherein n is the dispatching cycle of n MCH, and assignment period can be also the whole MCH least common multiple of dispatching cycle, as shown in Figure 8.

And network equipment sends the DSI-new cycle (the transmission cycle that is hereinafter called DSI-new), it can be the United Dispatching cycle of all MCH, also can be the assignment period of all MCH, like this, when DSI-new sends on the transmission cycle of each DSI-new, content wherein comprises the dynamic scheduling information of part or all of MCH;

In this DSI-new, all MBMS business, according to the order of MCH, be arranged in order, so the arrangement of business is namely according to the numbering of its MCH from small to large, as: { MCH1 (MTCH1, MTCH2, ... MTCHn), MCH2 (MTCH1, MTCH2, ... MTCHn), ... .MCHk (MTCH1, MTCH2 ... MTCHn).Because indicated the ordering of all MCH in MCCH message, and indicated the ordering of all business of every MCH, in other words, can determine according to putting in order of MCH in MCCH the order of DSI, so network side and UE can know the particular location of each MBMS business in DSI-new, so, in DSI-new, do not need explicitly to have indicated the Logic Channel Identifier of each business yet, only need to configure successively { start/end, start/end, ... .start/end}, be followed successively by first business of first MCH, second business of first MCH, ... first business of m MCH, second business of m MCH, ... first business of n MCH, second business of n MCH, ... first business of last MCH (MCHm), .... last business of last MCH (MCHm), as Fig. 9.

In fact, each MCH has the MSAP occasion period of self, that is to say, if the United Dispatching that the transmission cycle of DSI-new is all MCH during the cycle, the DSI of some MCH is not present in configured DSI-new.Such as, there are 3 MCH, its MSAP occasion period is respectively 320ms, 160ms, 640ms, if during the United Dispatching cycle that the transmission cycle of DSI-new is all MCH (being 160ms), the DSI content that DSI-new comprises is:

During 160ms, { DSI1, DSI2, DSI3}

During 320ms, { DSI2}

During 480ms, { DSI1, DSI2}

During 640ms, { DSI2}

I.e. in the assignment period of all MCH (640ms), namely the content at upper DSI-new of 4 United Dispatching cycles (160ms) is: the transfer information content that has 3 MCH used in first United Dispatching cycle (160ms); On second United Dispatching cycle (160ms), only has MCH1 schedule information content, the schedule information content that has MCH1 and MCH2 on the 3rd the United Dispatching cycle (160ms) only has the schedule information content of MCH1 on the 4th the United Dispatching cycle (160ms).These four United Dispatching cycles (160ms) have formed an assignment period, and MCH1, in the assignment period of 640ms, be scheduled 4 times, and MCH2 has been scheduled 2 times, and MCH3 has only been scheduled 1 time, as Figure 10.

In MCCH message, not only dispose the list of all MBMS business of all MCH, but also dispose the MSAP occasion period of every MCH.The present embodiment still take scheme in three MCH how on a DSI-new, correctly to obtain the distribution condition of the MBSFN subframe of each MBMS business as example explanation UE.

For convenience, supposing has 2 business on each MCH, always have 6 business, be respectively service1, service2 ... .service6, wherein service1 and service2 are carried on first MCH, it is upper that service3 and service4 are carried on second MCH, and it is upper that service5 and service6 are carried on the 3rd MCH: { service1, service2} → MCH1; { service3, service4} → MCH2; { service5, service6} → MCH3.

If adopt 3 DSI of the prior art to indicate, be { MTCH1, MTCH2} → MCH1; { MTCH1, MTCH2} → MCH2; { MTCH1, MTCH2} → MCH3.UE can obtain the distribution condition of the MBSFN subframe of each business, DSI 1 → { start/end, start/end} again according to the order of the MCH on MCCH according to Logic Channel Identifier; DSI 2 → { start/end, start/end}; DSI 3 → { start/end, start/end}.In the present invention, the content of DSI-new be start/end, start/end, start/end, start/end, start/end, start/end}, is { DSI1, DSI2, the content of DSI3} in fact successively.

Because different MCH has different MSAP occasion period, as Figure 10, at different United Dispatchings, on the cycle, may occur that the DSI of part MCH 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}

At first MSAP occasion period, UE can know the resource allocation conditions of 6 business; At second MSAP occasion period, UE knows to only have a MCH (being MCH1) to have DSI, thus the sub-frame resources assignment information of acquisition business 1 and 2; At the 3rd MSAP occasion period, UE knows has 2 MCH (MCH1 and MCH2) to have DSI, thus the sub-frame resources assignment information of acquisition business 1,2,3,4; At the 4th MSAP occasion period, UE knows to only have a MCH (MCH1) to have DSI, thus the sub-frame resources assignment information of acquisition business 1 and 2.

Without loss of generality, then give one example.When have 5 MCH (MCH1, MCH2 ... MCH5), supposing has 2 business on each MCH, altogether business be service1, service2 ... .service10}, and the MSAP occasion period of each MCH is { 320,160,480,640,160}.

UE obtains the MSAP occasion period of each MCH from MCCH, also just can know at different MSAP occasion period, DSI-new has comprised the DSI content of which MCH, as at the 3rd MSAP occasion period, DSI-new comprises MCH1, MCH2, the dynamic scheduling information of MCH5, DSI-new={start/end, start/end, start/end, start/end, start/end, start/end}, UE can know and is respectively service1, service2, service3, service4, service9, the MBSFN sub-frame allocation information of service10, MCH3 and MCH4 do not have DSI.

In a MBSFN region, UE may be only interested in a MBMS business on a MCH, and UE does not need to read the assignment information of the sub-frame resources of the upper MBMS business of each MCH in DSI-new content.UE knows that according to MCCH message its interested business is on that MCH, then according to MCCH message, knows the MSAP occasion period of this MCH, can read DSI-new in several United Dispatching cycles of having carried its DSI.UE can read MCCH, obtain its interested business on which MCH, which United Dispatching cycle to read DSI-new in, when UE reads DSI-new content, can skip its uninterested MCH and MTCH, directly read the sub-frame allocation information of its interested MTCH.

If, total total N MCH on a MBSFN region, the business of the upper carrying of each MCH has M, these information configuration are in MCCH message, and be arranged in order a business into 1～M on MCH1, and the business of 1～M on MCH2 ... the business of 1～M on ..MCH-N.Like this, certain UE is interested in i MBMS business, according to following process, receives the DSI of this MBMS business, as shown in figure 11:

Step 1100:UE is according to the MSAP occasion period of the MCH of this i of carrying business, and the transmission cycle of DSI-new, determine receiving cycle (determining UE reads DSI-new at which United Dispatching on the cycle), wherein, the DSI content that has necessarily comprised this MCH in the DSI-new content sending on determined receiving cycle;

Step 1101:UE reads its interested i MBMS business in DSI-new content at determined receiving cycle:

In this step, when UE reads i MBMS business, UE need to know in a plurality of MCH before the MCH that has carried i MBMS business and (is configured in the list of all MCH in MCCH message, several MCH before this MCH sequence number), the DSI of which MCH also appears in this DSI-new, particularly, UE is by reading the MSAPoccasion period of all MCH in MCCH message, can know at this United Dispatching on the cycle, in DSI-new, whether comprise these MCH DSI content;

UE can directly skip and not need to read the DSI content of these MCH afterwards, directly to the MBSFN sub-frame allocation information that reads this MBMS business on the DSI of the MCH of its business interested of carrying.

For above step 1100 and 1101, can adopt a formula to illustrate visually, establish a MBSFN region have N MCH (1,2,, n ..., N), the business of the upper carrying of each MCH be (1,2 ... M) _n.The interested business i of UE is on n MCH (MCH-n).At certain, carried on the DSI-new of DSI of MCH-n, before this MCH-n, also had the DSI of k MCH to be also carried on DSI-new.Meanwhile, the MBSFN sub-frame allocation of each business adopts the start/end of same bits length, equals to carry the MSAPoccasion perod of its MCH, as: when equaling 320ms, MSAPoccasionperiod can adopt 8bit.

First: UE, from DSI-new start bit, skips A byte length, just can arrive in the DSI content of n MCH of i business, wherein:

A＝n1*Bit ₁+n2*Bit ₂+....+nk*Bit _k

In above formula: n1 represents that appearing at a described MCH the 1st MCH before in new DSI above always has how many business, n1*Bit ₁the total length that represents the DSI of the 1st MCH, the like, nk represents that in DSI-new, appearing at this MCH k MCH before above always has how many business, nk*Bit _kthe total length that represents the DSI of k MCH, wherein, because the MSAPoccasion period of every MCH can be different, so the bit length Bit (start/end) of the MBSFN sub-frame allocation of the upper business of MCH can be different, n1, n2...nk can be discontinuous, because allow the DSI content of neither one or a plurality of MCH on DSI-new.

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

B＝r*Bit(start/end)。

I service bearer is upper at each MCH (as: n MCH), and upper total total m the business of this MCH, also has r service bearer (r < m) on this MCH before i business.R*Bit represents the byte length that r business distributed altogether.

In a word, according to MCCH message, which United Dispatching UE can know at is read DSI-new on the cycle, and can only read the MBSFN sub-frame allocation information of its interested business.Such as, if only interested in service5, UE need to read DSI-new the 1st United Dispatching cycle, other United Dispatching cycle can not carried the sub-frame resources configuration information of service5.

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

Claims

1. a method for transmission dynamic scheduling information (DSI), is characterized in that, the method comprises:

Network equipment is carrying the DSI of the upper main MCH of transmission of main Multicast Channel (MCH) of multicast control channel MCCH, on other MCH except described main MCH, send respectively the DSI of other MCH, the DSI of described other MCH all adopts same Modulation and Coding Scheme (MCS);

2. the method for claim 1, is characterized in that,

The MCS that the same MCS that the DSI of described other MCH adopts is described MCCH, described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the DSI of described other MCH that decode; Or

3. method as claimed in claim 1 or 2, is characterized in that,

The MCS that the MCS that the DSI of described main MCH adopts is described MCCH, described subscriber equipment obtains the MCS of MCCH from system broadcast message, with the DSI of the described main MCH that decodes; Or

4. method as claimed in claim 3, is characterized in that,

5. a system for transmission dynamic scheduling information (DSI), is characterized in that, this system comprises network equipment and subscriber equipment, wherein:

Described network equipment, for the DSI carrying the upper main MCH of transmission of main Multicast Channel (MCH) of multicast control channel MCCH, on other MCH except described main MCH, send respectively the DSI of other MCH, the DSI of described other MCH all adopts same Modulation and Coding Scheme (MCS);

6. system as claimed in claim 5, is characterized in that,

Described network equipment, the MCS that the same MCS that the DSI of other MCH that send on described other MCH adopts is described MCCH, or the MCS for configuring in system broadcast message;

7. the system as described in claim 5 or 6, is characterized in that,

Described network equipment, the MCS that the MCS that the DSI of the main MCH sending on described main MCH adopts is described MCCH, or the MCS for configuring in system broadcast message;

8. system as claimed in claim 7, is characterized in that,