CN101925006A - MBMS demodulating and coding solution (MCS) determining method and MCE - Google Patents
MBMS demodulating and coding solution (MCS) determining method and MCE Download PDFInfo
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- CN101925006A CN101925006A CN2009101494192A CN200910149419A CN101925006A CN 101925006 A CN101925006 A CN 101925006A CN 2009101494192 A CN2009101494192 A CN 2009101494192A CN 200910149419 A CN200910149419 A CN 200910149419A CN 101925006 A CN101925006 A CN 101925006A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L2001/0092—Error control systems characterised by the topology of the transmission link
- H04L2001/0093—Point-to-multipoint
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W72/30—Resource management for broadcast services
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Abstract
The invention provides a method for determining the MCS of an MBMS, which comprises the following steps that: an MCE receives indication information from a base station; and the MCE determines the MCS according to the indication information. The invention also provides the MCE, which comprises a receiving module for receiving the indication information from the base station and a determination module for determining the MCS according to the indication information. In the invention, as the MCE is notified of the MCS auxiliary determination information of the MBMS through the indication information, the MCS can be adjusted flexibly by sending the indication information dynamically; therefore, the drawback that the corresponding MCS of a certain multimedia broadcast multicast service cannot be set and regulated flexibly in the application of the conventional multimedia broadcast multicast technology is overcome.
Description
Technical field
The present invention relates to the communications field, particularly, relate to the modulation of a kind of multimedia broadcasting and multicast service and encoding scheme determine method and a kind of multimedia broadcasting and multicast coordination entity (Multimedia Broadcast Multicast Coordination Entity, MCE).
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in the system, multimedia broadcasting and multicast service (Multimedia Broadcast Multicast Service, abbreviate MBMS as) can adopt multicast pattern mode, be called MBSFN (Multicast/Broadcastover Single Frequency Network, single frequency network multicast broadcast) sending mode, the MBMS that adopts the multicast pattern to send, be also referred to as the MBSFN business, can be after identical modulation be adopted in a plurality of sub-districts coded format, adopts identical physical resource transmission identical content.The feature of the many cell transmission of MBMS: 1) in the inter-sync transmission of MBSFN zone; 2) support many cell MBMS transmission to merge; 3) MTCH (Multicast traffic Channel, multicast service channel) and MCCH (Multicast Control Channel, multicast control channel) are mapped on the MCH transmission channel under p-T-m (putting multiple spot) pattern; 4) MBSFN retaining zone, the MBSNF zone, the MBSFN transmission, advertisement keeps the sub-district, by the semi-static configuration of Operation and Maintenance.The UE of a plurality of like this sub-districts (User equipment, subscriber equipment) can receive the identical MBMS data of a plurality of contents and carry out SFN and merge, thus the gain that can improve received signal.Adopt identical physical resource and send a plurality of sub-districts that the MBSFN sending mode sends same MBMS and constituted a MBSFN zone.In the LTE of reality networking, several MBSFN business are arranged on the MBSFN zone, these all MBSFN business that belong to same MBSFN zone are called a MBSFN service groups, that is to say that a MBSFN service groups only belongs to a MBSFN zone.A MBSFN zone comprises a plurality of sub-districts, and each sub-district has all disposed an identical MBSFN service groups.The data channel MTCH that possesses a plurality of MBSFN business in identical MBSFN zone, and the control channel MCCH of MBSFN business can be multiplexed into a MCH (Multicast Channel, Multicast Channel).The MCCH in identical MBSFN zone and a plurality of MTCH, promptly many logic channels can be mapped on the same transmission channel MCH.
The MSAP (MBSFN SubframeAllocation Pattern, MBSFN sub-frame allocation pattern) that Fig. 1 shows a MCH in the correlation technique distributes the schematic diagram of multicast resource opportunity.In the LTE system, MCH is a transmission channel, and characteristics are the transmission of putting multiple spot, and the corresponding physical resource is that system is the multicast resource that MBMS transmission (MTCH) is distributed, article one, MCH is carried on some multicast resources, and these multicast resources comprise several MBSFN frames and MBSFN subframe.The configuration of these multicast resources comprises radio frames allocation model and wireless sub-frame allocation model, the multicast resource in each MBSFN zone can be that unit is divided into a plurality of groups according to certain pattern with the subframe, each group can constitute a MCH, and perhaps a plurality of groups constitute a MCH.Employed pattern just was called the MSAP of this MCH when each MCH constituted so, and a cover MSAP describes the physical resource of a MCH channel.Can there be one or more MCH each sub-district, the all unique corresponding cover MSAP of each MCH, and uniquely belong to a MBSFN zone, but can there be one or more MCH in each MBSFN zone, the collocation method of the multicast resource that each MCH disposed is all to dispose a cover MSAP for each MCH.
Fig. 2 shows Scheduling Block and indicates the schematic diagram of a plurality of MTCH multicast resources.In order to improve the transmitting efficiency of MTCH, a plurality of MTCH that each MTH goes up carrying can adopt the method for dynamic dispatching, can the MTCH more than 2 or 2 is multiplexing on same MBSFN subframe and take the part resource of this subframe by dynamic dispatching.In the correlation technique, introduce MSAP occasion (MSAP opportunity) simultaneously in the MSAP notion, it has indicated the included whole multicast resources of the pairing MCH of certain MSAP in the time period.Can send a plurality of MTCH and dynamic scheduling information at a MSAP in opportunity, can also comprise MCCH, dynamic scheduling information can carry and be used in MAC control section (MAC control element), perhaps be carried on independent logic channel MSCH (Multicast Scheduling Channel, the multicast scheduling channel), a MSAP time span on opportunity is exactly a dispatching cycle, is also referred to as a dynamic dispatching cycle.Article one, MCH has distributed one or more MBSFN subframes in one or more MBSFN frames by MSAP, and the subframe that wherein adopts the multicast pattern to send is called the MBSFN subframe, and the frame that contains the MBSFN subframe is called the MBSFN frame.
Carried dynamic scheduling information on opportunity at each MSAP that MCH disposed, also abbreviate schedule information in the present invention as, carry the map information of MTCH to auxiliary MSAP subframe, this map information is determined by means of the relation of the MBSFN subframe numeral index in a dispatching cycle.UE reads schedule information can know which MBSFN subframe each MTCH is dispensed on, UE can read its interested MTCH on corresponding M BSFN subframe, do not need the MBSFN subframe that reads and ignore it, thereby improve the MBMS receiving efficiency of UE, save the power consumption of UE.MBSFN subframe numbering described here is to determine like this: a MCH is arranged number consecutively in order in all MBSFN subframes of being distributed in a dispatching cycle.For example the MCH channel MBSFN number of subframes total amount of distributing in one-period is 100, and then the subframe numbering from 0 to 99, perhaps 1 to 100.
In relevant LTE technology, a plurality of transmission channels are by the multiplexing MCH channel of following mode: the corresponding TTI (Transmission Time Interval) of subframe, in a TTI, can send one or more transmission data blocks, the corresponding MAC PDU (medium access control layer protocol data cell) of each transmission data block.In a MAC PDU, can comprise a plurality of MAC SDU (service data unit), these MAC SDU can be from different logic channels, and in the present invention, possible logic channel comprises MTCH, MCCH, MSCH etc.After being serially connected in MAC PDU, these data from the Different Logic channel on physical channel, send.In order to distinguish MAC SDU from the Different Logic channel, carried identification information among the MACPDU, comprising: the sign of logic channel, the positional information of the data block of this logic channel in MAC PDU etc. are used for the data block that receiving terminal is distinguished the Different Logic channel.
Dynamic multiplexing to MBMS, in a dispatching cycle, the MTCH continuous transmission of data of a MBMS in other words, that is to say, the MBSFN sub-frame resources that takies the MCH channel that the data of a business are continuous, the whole transmission of business datum that needs to send in this dispatching cycle up to this business finishes.The data of different business can send in same MBSFN subframe.That is to say that the transmission that is serially connected of business datum from different business can be arranged among the same MAC PDU.Above-mentioned professional sending order can be given receiving terminal by MCCH channel or other signaling.
In the LTE system, transmission channel generates transmission block (Transport block) and sends to physical channel, and physical channel carries out physical channel to transmission block to be handled, and comprises coding.Coded system comprises Turbo code or convolution code, encoding process also comprise to data punch, interleaving treatment.Physical channel is handled and also to be comprised after modulating through the data of processing such as coding and send to wave point, modulation can be QPSK (Quaternary Phase ShiftKeying, quarternary phase-shift keying (QPSK)) or 8PSK (8Phase Shift Keying, 8 phase-shift keyings) or 16QAM (16Quadracture Amplitude Modulation, quadrature amplitude modulation) or 32QAM or the like.The bandwidth of different codings and modulation effects channel and channel quality, for example than higher code rate, lower redundant data is arranged, the so relative business datum that can transmit is just more, but coding gain reduces, and channel bit error rate is to relative increasing, again for example, the relative 16QAM of QPSK has less relatively business datum bearing capacity, but lower to the channel circumstance requirement, channel bit error rate can be smaller.
Difference according to the MBMS type, different business has different QoS (quality ofservice, service quality) requirement, for example, multimedia real time business such as voice and video require to have lower channel bit error rate, to improve user's the impression of watching, in general, the BLER of this class business requires to reach 1%.And to text or download the business of class, requirement bandwidth height, and require low relatively to the error rate of channel, it is 10% just passable that the BLER of this class business requires to reach, the logic channel message that this class of MCCH, MSCH control signaling is more arranged has higher requirement to the error rate of channel when wave point sends.MCCH logic channel message is used to indicate the relevant PMCH of UE (Physical Multicast Channel), MCH (transmission channel Multicast Channel) and MTCH channel configuration information that each is professional.Therefore, (Modulation and Coding Scheme MCS) satisfies the requirement that different service interfacings is received quality to have defined coding and modulation scheme.One cover MCS has comprised the mode of coding and modulation.
Yet in multimedia broadcasting and multicast technology was in the past used, for certain MBMS, its corresponding M CS was predetermined, can not change.If scene changes, the so this MCS that can not adjust can not satisfy the demand of MBMS.
Summary of the invention
The MCS that the present invention aims to provide a kind of MBMS determines method, can not adjust with the MCS that solves prior art to cause satisfying the problem that MBMS requires flexibly.
According to an aspect of the present invention, provide the MCS of a kind of MBMS to determine method, may further comprise the steps: MCE receives indication information from the base station; MCE determines MCS according to indication information.
Optionally, determine in the method that before MCE received indication information from the base station, also comprise: MCE sent a request message to the base station, report indication information with the request base station at above-mentioned MCS.
Optionally, determine in the method at above-mentioned MCS, after MCE determines MCS, also comprise: the media broadcast multicast coordination entity is with the MCS informing base station of determining.
Optionally, determine in the method at above-mentioned MCS that indication information comprises following at least a: in the fixed time, one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service; In fixed time, one or more in the designated cell are specified the channel quality information of multimedia broadcast-multicast service; MCS information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section; Cell identity information.
Optionally, determine in the method at above-mentioned MCS that indication information comprises in the fixed time that one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, MCS information is following a kind of: concrete coded modulation information; The index of MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations; The sign of MCS configuration in the MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations, sign of each MCS configuration; Default configuration MCS.
According to another aspect of the present invention, provide a kind of MCE, having comprised: receiver module is used for from base station reception indication information; Determination module is used for determining MCS according to indication information.
Optionally, in above-mentioned MCE, also comprise: request module, be used for sending a request message to the base station, report indication information with the request base station.
Optionally, in above-mentioned MCE, also comprise: notification module is used for the MCS informing base station that will determine.
Optionally, in above-mentioned MCE, indication information comprises following at least a: in the fixed time, one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service; In fixed time, one or more in the designated cell are specified the channel quality information of multimedia broadcast-multicast service; MCS information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section; Cell identity information.
Optionally, in above-mentioned MCE, indication information comprises in the fixed time that one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, and MCS information is following a kind of: concrete coded modulation information; The index of MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations; The sign of MCS configuration in the MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations, sign of each MCS configuration; Default configuration MCS.
The MCS of the foregoing description determines method because adopt indication information to notify MCE about the auxiliary definite information of the MCS of MBMS, so can adjust MCS neatly by dynamically sending indication information, overcome in the multimedia broadcasting and multicast technology application in the past, for certain multimedia broadcast-multicast service, the shortcoming that its corresponding M CS can not set flexibly and adjust.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
The MSAP that Fig. 1 shows a MCH in the correlation technique distributes the schematic diagram of multicast resource opportunity;
Fig. 2 shows Scheduling Block and indicates the schematic diagram of a plurality of MTCH multicast resources;
Fig. 3 shows the flow chart of the method for determining according to the MCS of the MBMS of the embodiment of the invention;
Fig. 4 shows the block diagram according to the MCE of the embodiment of the invention;
Fig. 5 shows the block diagram of MCE according to another embodiment of the present invention;
Fig. 6 shows the block diagram according to the MCE of further embodiment of this invention;
Fig. 7 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment one);
Fig. 8 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment two);
Fig. 9 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment three);
Figure 10 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment four).
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 3 shows the flow chart of the method for determining according to the MCS of the MBMS of the embodiment of the invention, may further comprise the steps:
Step S10, MCE receives indication information from the base station;
Step S20, MCE determines MCS according to indication information.
This MCS determines method because adopt indication information to notify MCE about the auxiliary definite information of the MCS of MBMS, so can adjust MCS neatly by dynamically sending indication information, overcome in the multimedia broadcasting and multicast technology application in the past, for certain multimedia broadcast-multicast service, the shortcoming that its corresponding M CS can not set flexibly and adjust.
Specifically, when these have the logic channel of different business that require or control signaling to be multiplexed into same transmission channel to channel bit error rate, and then when being mapped to the transmission of same physical channel, because adopted the such MCS supplementary of indication information, so realized different business is adopted different chnnel coding modulation schemes, so improve the utilization ratio of Radio Resource.
Optionally, determine in the method that before step S10, also comprise: MCE sends a request message to the base station, report indication information with the request base station at above-mentioned MCS.If the base station does not initiatively report indication information, the preferred embodiment can initiatively be sent request message by MCE and obtain indication information.
Optionally, determine in the method at above-mentioned MCS, after step S30, also comprise: the media broadcast multicast coordination entity is with the MCS informing base station of determining.The preferred embodiment can informing base station about definite result of MCS, thereby make the base station carry out corresponding scheme.
Optionally, determine in the method that indication information comprises following at least a at above-mentioned MCS:
1) in the fixed time, the MCS information of one or more multimedia broadcast-multicast services in the designated cell;
2) in the fixed time, the channel quality information of one or more multimedia broadcast-multicast services in the designated cell;
3) the MCS information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section.
4) cell identity information.
These information all are the information of using always, construct than being easier to, and MCE can utilize these information to judge the MCS of MBMS.
Optionally, determine in the method at above-mentioned MCS that indication information is if in the fixed time, one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, and MCS information is following a kind of:
1) concrete coded modulation information;
2) index of MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations;
3) sign of MCS configuration in the MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations, sign of each MCS configuration;
4) default configuration MCS.This method is that the multimedia broadcasting and multicast coordination entity is stipulated a kind of default MCS configuration.
These information all are the MCS information of using always, than being easier to structure.
Fig. 4 shows the block diagram according to the MCE of the embodiment of the invention, comprising:
This MCE is because adopt indication information to come the MCS requirement of informing base station about MBMS, so can adjust MCS neatly by dynamically sending indication information, overcome in the multimedia broadcasting and multicast technology application in the past, for certain multimedia broadcast-multicast service, the shortcoming that its corresponding M CS can not set flexibly and adjust.
Fig. 5 shows the block diagram of MCE according to another embodiment of the present invention, also comprises: request module 5, be used for sending a request message to the base station, and report indication information with the request base station.If the base station does not initiatively report indication information, the preferred embodiment can initiatively be sent request message by MCE and obtain indication information.
Fig. 6 shows the block diagram according to the MCE of further embodiment of this invention, also comprises: notification module 25 is used for the MCS informing base station that will determine.The preferred embodiment can informing base station about definite result of MCS, thereby make the base station carry out corresponding scheme.
Optionally, in above-mentioned MCE, indication information comprises following at least a:
1) in the fixed time, the MCS information of one or more multimedia broadcast-multicast services in the designated cell;
2) in the fixed time, the channel quality information of one or more multimedia broadcast-multicast services in the designated cell;
3) the MCS information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section;
4) cell identity information.
These information all are the information of using always, construct than being easier to, and MCE can utilize these information to judge the MCS of MBMS.
Optionally, in above-mentioned MCE, indication information is if in the fixed time, and one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, and MCS information is following a kind of:
1) concrete coded modulation information;
2) index of MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations;
3) sign of MCS configuration in the MCS tabulation, wherein, MCS tabulates by the MCE informing base station, and the MCS tabulation comprises one or more MCS configurations, sign of each MCS configuration;
4) default configuration MCS.
These information all are the MCS information of using always, than being easier to structure.
A preferred implementation method of the present invention is provided below, may further comprise the steps:
1, the MCE informing base station reports the auxiliary definite information (being indication information) of MCS of specified services;
2, the base station is with the auxiliary definite information notice MCE of the MCS of specified services;
3, MCE judges multimedia broadcasting and multicast corresponding M CS according to the auxiliary definite information of described MCS that the base station reports;
5, the MCE informing base station is specified the MCS of multimedia broadcasting and multicast.
Be the specific example of several signalings configuration below, as the preferred version of this embodiment:
Embodiment one
Fig. 7 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment one);
1, multimedia broadcasting and multicast coordination entity (MCE) informing base station reports the auxiliary definite information of MCS.Multimedia broadcasting and multicast coordination entity (MCE) can be specified and be reported content accordingly.Described report content can but be not limited to following a kind of:
● fixed time length
● specify the auxiliary cycle of determining message of MCS
● the multimedia broadcast-multicast service of appointment
● the type of service of appointment
● service specified quality (QoS)
2, the base station receives from behind the auxiliary definite request message of the MCS of multimedia broadcasting and multicast coordination entity (MCE), according to cell range the auxiliary definite information of the MCS of satisfactory appointment multimedia broadcast-multicast service is sent to MCE.For obtaining the auxiliary definite information of described MCS, the base station can designated user (as frequency, time period, report cycle etc.) measurement under given condition report corresponding data, as: bLock error rate (BLER), channel quality indication physical layer parameters such as (CQI).Described MCS is auxiliary determine information can but be not limited to following a kind of:
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the modulation of perhaps single ripple business and coded message
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the channel quality information of perhaps single ripple business
● one or more multimedia broadcast-multicast services in the designated cell, the traffic type information of perhaps single ripple business
● cell identity information
3, MCE determines multimedia broadcasting and multicast corresponding M CS according to the auxiliary definite information of described MCS that the base station reports.
Described MCS information can but be not limited to following a kind of:
● concrete coded modulation information.
● the index of a MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations.
● sign that MCS disposes in the MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations, and each MCS disposes a sign.
● default configuration, in this method, described default configuration is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate.
Embodiment two
Fig. 8 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment two);
1, multimedia broadcasting and multicast coordination entity (MCE) informing base station reports the auxiliary definite information of MCS.Multimedia broadcasting and multicast coordination entity (MCE) can be specified and be reported content accordingly.Described report content can but be not limited to following a kind of:
● fixed time length
● specify the auxiliary cycle of determining message of MCS
● the business of appointment
● the type of service of appointment
● service specified quality (QoS)
2, the base station receives from behind the auxiliary definite request message of the MCS of multimedia broadcasting and multicast coordination entity (MCE), according to cell range the auxiliary definite information of satisfactory MCS is sent to multimedia broadcasting and multicast coordination entity (MCE).
For obtaining the auxiliary definite information of described MCS, the base station can designated user (as frequency, time period, report cycle etc.) measurement under given condition report corresponding data, as: bLock error rate (BLER), channel quality indication physical layer parameters such as (CQI).
Described MCS is auxiliary determine information can but be not limited to following a kind of:
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the modulation of perhaps single ripple business and coded message
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the channel quality information of perhaps single ripple business
● one or more multimedia broadcast-multicast services in the designated cell, the traffic type information of perhaps single ripple business
● cell identity information
3, multimedia broadcasting and multicast coordination entity (MCE) is determined multimedia broadcasting and multicast corresponding M CS according to the auxiliary definite information of described MCS that the base station reports.
Described MCS information can but be not limited to following a kind of:
● concrete coded modulation information.
● the index of a MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations.
● sign that MCS disposes in the MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations, and each MCS disposes a sign.
● default configuration, in this method, described default configuration is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate.
Embodiment three
Fig. 9 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment three);
1, the base station sends to corresponding multimedia broadcasting and multicast coordination entity (MCE) according to cell range with the auxiliary definite information of MCS.
For obtaining the auxiliary definite information of described MCS, the base station can designated user (as frequency, time period, report cycle etc.) measurement under given condition report corresponding data, as: bLock error rate (BLER), channel quality indication physical layer parameters such as (CQI).
Described MCS is auxiliary determine information can but be not limited to following a kind of:
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the modulation of perhaps single ripple business and coded message
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the channel quality information of perhaps single ripple business
● one or more multimedia broadcast-multicast services in the designated cell, the traffic type information of perhaps single ripple business
● cell identity information
Described MCS is auxiliary determine data entries determine can but be not limited to following mode:
● the acquiescence mode, preestablish by MCE, reinform the base station
● clauses and subclauses are determined to report accordingly in base station oneself
2, MCE determines multimedia broadcasting and multicast corresponding M CS according to the auxiliary definite information of described MCS that the base station reports.
Described MCS information can but be not limited to following a kind of:
● concrete coded modulation information.
● the index of a MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations.
● sign that MCS disposes in the MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations, and each MCS disposes a sign.
● default configuration, in this method, described default configuration is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate.
Embodiment four
Figure 10 shows multimedia broadcast-multicast service MCS and determines schematic diagram (embodiment four).
1, the base station will specify the auxiliary definite information of MCS of multimedia broadcast-multicast service to send to MCE according to cell range.
For obtaining the auxiliary definite information of described MCS, the base station can designated user (as frequency, time period, report cycle etc.) measurement under given condition report corresponding data, as: bLock error rate (BLER), channel quality indication physical layer parameters such as (CQI).
Described MCS is auxiliary determine information can but be not limited to following a kind of:
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the modulation of perhaps single ripple business and coded message
● in the fixed time, one or more multimedia broadcast-multicast services in the designated cell, the channel quality information of perhaps single ripple business
● one or more multimedia broadcast-multicast services in the designated cell, the traffic type information of perhaps single ripple business
● cell identity information
Described MCS is auxiliary determine data entries determine can but be not limited to following mode:
● the acquiescence mode, preestablish by MCE, reinform the base station
● clauses and subclauses are determined to report accordingly in base station oneself
2, MCE determines multimedia broadcasting and multicast corresponding M CS according to the auxiliary definite information of described MCS that the base station reports.
Described MCS information can but be not limited to following a kind of:
● concrete coded modulation information.
● the index of a MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations.
● sign that MCS disposes in the MCS tabulation, described MCS tabulation is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate, and this tabulation comprises one or more MCS configurations, and each MCS disposes a sign.
● default configuration, in this method, described default configuration is obtained by multimedia broadcasting and multicast coordination entity (MCE) and base station negotiate.
From above description, the MCS of the foregoing description determines that method and MCE are because adopt indication information to notify MCE about the auxiliary definite information of the MCS of MBMS as can be seen, so can adjust MCS neatly by dynamically sending indication information, overcome in the multimedia broadcasting and multicast technology application in the past, for certain multimedia broadcast-multicast service, the shortcoming that its corresponding M CS can not set flexibly and adjust.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the modulation and the encoding scheme of multimedia broadcasting and multicast service are determined method, it is characterized in that, may further comprise the steps:
The multimedia broadcasting and multicast coordination entity receives indication information from the base station;
Described multimedia broadcasting and multicast coordination entity is determined modulation and encoding scheme according to described indication information.
2. modulation according to claim 1 and encoding scheme are determined method, it is characterized in that, before the multimedia broadcasting and multicast coordination entity receives indication information from the base station, also comprise:
Described multimedia broadcasting and multicast coordination entity sends a request message to described base station, reports described indication information to ask described base station.
3. modulation according to claim 1 and encoding scheme are determined method, it is characterized in that, after described multimedia broadcasting and multicast coordination entity is determined modulation and encoding scheme, also comprise:
Described modulation and encoding scheme that described media broadcast multicast coordination entity will be determined are notified described base station.
4. determine method according to each described modulation of claim 1 to 3 and encoding scheme, it is characterized in that described indication information comprises following at least a:
In fixed time, the MCS information of one or more multimedia broadcast-multicast services in the designated cell;
In fixed time, the channel quality information of one or more multimedia broadcast-multicast services in the designated cell;
Modulation and encoding scheme information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section;
Cell identity information.
5. determine method according to each described modulation of claim 1 to 3 and encoding scheme, it is characterized in that, described indication information comprises in the fixed time that one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, and described MCS information is following a kind of:
Concrete coded modulation information;
The index of MCS tabulation, wherein, described MCS tabulation is notified described base station by described multimedia broadcasting and multicast coordination entity, and described MCS tabulation comprises one or more MCS configurations;
The sign of MCS configuration in the MCS tabulation, wherein, described MCS tabulation is notified described base station by described multimedia broadcasting and multicast coordination entity, and described MCS tabulation comprises one or more MCS configurations, described sign of each described MCS configuration;
Default configuration MCS.
6. a multimedia broadcasting and multicast coordination entity is characterized in that, comprising:
Receiver module is used for from base station reception indication information;
Determination module is used for determining modulation and encoding scheme according to described indication information.
7. multimedia broadcasting and multicast coordination entity according to claim 6 is characterized in that, also comprises:
Request module is used for sending a request message to described base station, reports described indication information to ask described base station.
8. multimedia broadcasting and multicast coordination entity according to claim 6 is characterized in that, also comprises:
Notification module is used for notifying described base station with described modulation and the encoding scheme determined.
9. according to each described multimedia broadcasting and multicast coordination entity of claim 6 to 8, it is characterized in that described indication information comprises following at least a:
In fixed time, one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service;
In fixed time, one or more in the designated cell are specified the channel quality information of multimedia broadcast-multicast service;
Modulation and encoding scheme information in the type of service of the single ripple business of the appointment in the fixed time or/and corresponding channel quality information or/and the corresponding fixed time section;
Cell identity information.
10. according to each described multimedia broadcasting and multicast coordination entity of claim 6 to 8, it is characterized in that, described indication information comprises in the fixed time that one or more in the designated cell are specified the MCS information of multimedia broadcast-multicast service, and described MCS information is following a kind of:
Concrete coded modulation information;
The index of MCS tabulation, wherein, described MCS tabulation is notified described base station by described multimedia broadcasting and multicast coordination entity, and described MCS tabulation comprises one or more MCS configurations;
The sign of MCS configuration in the MCS tabulation, wherein, described MCS tabulation is notified described base station by described multimedia broadcasting and multicast coordination entity, and described MCS tabulation comprises one or more MCS configurations, described sign of each described MCS configuration; Default configuration MCS.
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| CN2009101494192A CN101925006A (en) | 2009-06-16 | 2009-06-16 | MBMS demodulating and coding solution (MCS) determining method and MCE |
| PCT/CN2010/070920 WO2010145223A1 (en) | 2009-06-16 | 2010-03-08 | Method for determining modulation and coding scheme of multimedia broadcast multicast service and multimedia broadcast multicast coordination entity |
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