CN101800942B - MCCH changes transmission method and the system of information - Google Patents
MCCH changes transmission method and the system of information Download PDFInfo
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- CN101800942B CN101800942B CN201010123829.2A CN201010123829A CN101800942B CN 101800942 B CN101800942 B CN 101800942B CN 201010123829 A CN201010123829 A CN 201010123829A CN 101800942 B CN101800942 B CN 101800942B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
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Abstract
The invention discloses a kind of base station selected first component carrier in multiple component carriers; And MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment by base station on the first component carrier, wherein, second component carrier wave is same or different from the first component carrier.According to technical scheme provided by the invention, under can realizing multiple component carriers scene, multicast control channel changes information dynamic transmission, and realizes subscriber equipment changes information correct acquisition to this multicast control channel.
Description
Technical field
The present invention relates to the communications field, change transmission method and the system of information in particular to a kind of MCCH.
Background technology
In order to meet senior International Telecommunication Union (InternationalTelecommunicationUnion-Advanced, referred to as ITU-Advanced) requirement, as Long Term Evolution (LongTermEvolution, referred to as LTE) the senior Long Term Evolution (LongTermEvolutionAdvanced of evolution standard, referred to as LTE-A) system needs to support larger system bandwidth (reaching as high as 100MHz), and needs the existing standard of backward compatibility LTE.On the basis of existing LTE system, the band width configuration of LTE system can be carried out merge to obtain larger bandwidth, above-mentioned technology is called carrier aggregation (CarrierAggregation, referred to as CA) technology, this carrier aggregation technology can improve high-grade intelligent multi mode terminal (IntelligentMultimodeTerminal, referred to as IMT-Advance) availability of frequency spectrum of system, to alleviate frequency spectrum resource in short supply, and then the utilance of frequency spectrum resource can be optimized.
In LTE system, Physical Downlink Control Channel (Physicaldownlinkcontrolchannel, referred to as PDCCH), for carrying uplink and downlink schedule information, and uplink power control information.
In LTE system, Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, referred to as PDSCH) is used for transmitting user data.
The transformat of Downlink Control Information (DownlinkControlInformation, referred to as DCI) can be divided into following several: DCIformat0,1,1A, 1B, 1C, 1D, 2,2A, 3,3A etc.Below be described respectively:
DCIformat0 is used to indicate the scheduling of Physical Uplink Shared Channel (Physicaluplinksharedchannel, referred to as PUSCH);
DCIformat1,1A, 1B, 1C, 1D are used for the different transmission mode of the Physical Downlink Shared Channel (PhysicalDownlinkSharedChannel, referred to as PDSCH) of single transport block;
DCIformat2,2A are used for the different transmission mode of descending PDSCH space division multiplexing;
DCIformat3,3A are used for the transmission of the power control instruction of Physical Uplink Control Channel (Physicaluplinkcontrolchannel, referred to as PUCCH) and PUSCH.
Above-mentioned DCIformat0,1A, the transmission block size of 3,3A is the same, and wherein, DCIformat0,1A adopt 1 bit to carry out form differentiation.
Process about the blind Detecting of Physical Downlink Control Channel in LTE (PDCCH) is briefly described as follows, control channel unit (Controlchannelelement, referred to as CCE) be the minimum unit carrying PDCCH resource, control area is made up of a series of CCEs.
PDCCH blind check scope is defined by search volume, and public search space and UE dedicated search space are divided in search volume.Search volume S
k (L)be defined as:
Wherein, CCE polymerization grade L ∈ { 1,2,4,8}, Y
kto public search space Y
k=0, namely search for from CCE=0 ~ 15.To UE dedicated search space Y
k=(AY
k-1) modD, Y
-1=n
rNTI≠ 0, A=39827, D=65537,
n
srepresent time-gap number 0 ~ 19.I=0 ..., L-1, m=0 ..., M
(L)-1.M
(L)the quantity that in search volume, the given rear PDCCH of L waits inspection collection (candidates).
Wherein, n
rNTIrepresent Radio Network Temporary Identifier value (RadioNetworkTemporaryIdentifier, referred to as RNTI).Said n
rNTIa value among corresponding following Radio Network Temporary Identifier:
System information RNTI (Systeminformation-RNTI, referred to as SI-RNTI);
Stochastic accessing RNTI (Randomaccess-RNTI, referred to as RA-RNTI);
Calling RNTI (Paging-RNTI, referred to as P-RNTI);
Community RNTI (Cell-RNTI, referred to as C-RNTI);
Semi-persistent scheduling RNTI (Semi-persistentschedulingRNTI, referred to as SPS-RNTI);
Temporary Cell RNTI (TemporaryC-RNTI).
Said n
rNTIwhich class RNTI of concrete selection is configured by high-level signaling, and concrete value is also specified by corresponding signaling and data.The value of RNTI is see shown in table 1 below.According to polymerization grade definition search volume see shown in table 2 below, during UE blind Detecting, the DCIformat corresponding according to the transmission mode of down link detects.The above-mentioned RNTI scrambling of 16 bit cyclic redundancy (Cyclicalredundancycheck, referred to as CRC) of each Downlink Control Information DCI.The configurable different RNTI of different UE carries out scrambling to CRC, thus can distinguish the DCI of different UEs.
Table 1:RNTI value
The PDCCHcandidates of table 2:UE monitoring
In LTE system, multicast control channel (MulticastControlChannel, referred to as MCCH) change information (changeinformation) and transmitted by DCIformat1C, wherein, carry the amount of bits that when MCCH changes Downlink Control Information (format1CusedforverycompactschedulingofonePDSCHcodeword) as a carrying streams of code words Physical Shared Channel of amount of bits that the DCIformat1C of information comprises and DCIformat1C, DCIformat1C comprises consistent, it is 8 bits that MCCH changes information, in DCIformat1C, remaining bits is reserved.The blind Detecting that MCCH changes information is only carried out in public search space, and the CRC of DCI (comprise MCCH and revise information) adopts unique M (Multicast)-RNTI scrambling.
Under LTE-A carrier aggregation scene, introduce multiple carrier type.LTE-A carrier type can be divided into: backward compatibility carrier wave (Backwardscompatiblecarrier), non-backward compatible carrier waves (Non-backwardscompatiblecarrier) and expansion carrier wave (Extensioncarrier) three types.
Expansion carrier wave has two kinds of implications: (1) is as the part of component carrier (Componentcarrier is called for short CC); (2) as an independently component carrier.Expansion carrier wave can not work alone, the part in a group component carrier set must be belonged to, and this set in component carrier in have at least one can work alone.Expansion carrier wave is sightless for LTEUEs.
In order to simplicity of design and consider various possible application scenarios, expansion carrier wave is configured to do not have PDCCH.So expand DCI corresponding to carrier wave to need to transmit on other component carriers.
Under LTE-A carrier aggregation scene, define PDCCH component carrier collection (PDCCHCCset), UE needs to carry out blind Detecting in PDCCHCCset; Also define downlink component carrier collection (Downlinkcomponentcarrierset, referred to as DLCCset), the PDSCH of UE in DLCCset, any CC can send.Under LTE-A carrier aggregation scene, allow across carrier dispatching, the PDCCH namely on certain component carrier can dispatch PDSCH or PUSCH on multiple component carrier.
But, revise the sending method of information in multiple component carriers about MCCH at present also not determine, therefore subscriber equipment correctly cannot obtain this MCCH and revise information, thus also cannot determine the information that the MCCH information on this component carrier corresponding to MCCH amendment information changes.
Summary of the invention
Correctly cannot obtain the problem of this multicast control channel change information for subscriber equipment in correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of multicast control channel MCCH of improvement to change the transmission method of information, to solve the problem one of at least.
According to an aspect of the present invention, the transmission method that a kind of MCCH changes information is provided.
The transmission method changing information according to MCCH of the present invention comprises: base station is selected first component carrier in multiple component carriers; And MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment by base station on the first component carrier, wherein, second component carrier wave is same or different from the first component carrier.
According to a further aspect in the invention, the transmission system that a kind of MCCH changes information is provided.
The transmission system changing information according to MCCH of the present invention comprises: base station, for the first component carrier selected in multiple component carriers, and on the first component carrier, MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment, wherein, second component carrier wave is same or different from the first component carrier; Subscriber equipment, changes information for receiving MCCH corresponding to second component carrier wave on the first component carrier.
By the present invention, this carrier wave or MCCH corresponding to other carrier waves are changed information transmission to subscriber equipment by base station on selected component carrier.Solve subscriber equipment in correlation technique and correctly cannot obtain the problem that MCCH changes information, and then multicast control channel changes information dynamic transmission under can realizing multiple component carriers scene, and realize subscriber equipment changes information correct acquisition to this multicast control channel.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart changing the transmission system of information according to the MCCH of the embodiment of the present invention;
Fig. 2 is that MCCH changes the structured flowchart of the transmission system of information according to the preferred embodiment of the invention;
Fig. 3 is that MCCH changes the information transmission schematic diagram of the transmission system of information according to the preferred embodiment of the invention;
Fig. 4 is the flow chart changing the transmission method of information according to the MCCH of the embodiment of the present invention;
Fig. 5 is the schematic diagram of the multicast control channel change information that sends across carrier wave under the scene of multiple component carriers according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
According to the embodiment of the present invention, provide firstly the transmission system that a kind of MCCH changes information.
Fig. 1 is the structured flowchart changing the transmission system of information according to the MCCH of the embodiment of the present invention.As shown in Figure 1, the transmission system of this MCCH change information comprises with lower device: base station 10, subscriber equipment 20.
Base station 10, for the first component carrier selected in multiple component carriers, and on the first component carrier, MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment, wherein, second component carrier wave is same or different from the first component carrier;
Subscriber equipment 20, changes information for receiving MCCH corresponding to second component carrier wave on the first component carrier.
Under said system can realize multiple component carriers scene, multicast control channel changes information dynamic transmission, and realizes subscriber equipment 20 changes information correct acquisition to this multicast control channel.
Preferably, as shown in Figure 2, base station 10 may further include: the first choice device 100, for selecting component carrier according to high-level signaling instruction; Second choice device 102, for component carrier selected from default unique carrier wave or unique association carrier wave; 3rd choice device 104, for concentrating random selected component carrier from physical downlink control channel PDCCH component carrier; 4th choice device 106, for selecting resident carrier wave as the first component carrier.
In specific implementation process, base station 10 is that multicast control channel to be sent changes information and selectes component carrier by following one of at least mode:
(1) the selected component carrier of high-level signaling instruction;
Wherein, selected by base station and send the component carrier that multicast control channel changes information, base station utilizes high-level signaling by third layer radio resource control layer (RadioResourceControl, referred to as RRC) send to one or more UE, UE to resolve the indication information of high-level signaling acquisition selected component carrier the indication information of selected component carrier; Base station sends the DCI that multicast control channel changes information on selected component carrier, and UE detects the DCI that multicast control channel changes information on selected carrier wave.
(2) unique carrier wave or unique association carrier wave in the Physical Downlink Control Channel component carrier collection of selected subscriber equipment;
Wherein, when PDCCH component carrier set pair is in time only having one UE, or when expanding carrier wave B (i.e. second component carrier wave) and only associating with one-component carrier wave A (i.e. the first component carrier), the former UE needs the multicast control channel of blind Detecting to change the DCI of information on the first unique component carrier, the latter UE needs the multicast control channel of the second component carrier wave of blind Detecting to change the DCI of information on unique component carrier A, does not now then need high-level signaling to indicate.
(3) random selected component carrier is concentrated from PDCCH component carrier;
Wherein, the multicast control channel selecting any one component carrier to send expansion carrier wave can be concentrated to change the DCI of information or changed the DCI of information by the multicast control channel of the component carrier across carrier dispatching from the component carrier of PDCCH.Such as, can concentrate optional one-component carrier wave A from component carrier, the multicast control channel for sending expansion carrier wave B changes the DCI of information.
(4) adopt resident carrier wave as selected component carrier.
Wherein, when UE needs the multicast control channel of other component carriers obtained beyond the component carrier collection of PDCCH to change information, the DCI that multicast control channel changes information can send on the descending resident carrier wave of UE.
Particularly, the multicast control channel in LTE-A changes information and can carry out across carrier dispatching; That is, the Downlink Control Information (DCI) that the multicast control channel of component carrier B (i.e. above-mentioned second component carrier wave) changes information relevant can by base station at other component carriers A (i.e. above-mentioned second component carrier wave, wherein, B is different from A) on send to subscriber equipment (UserEquipment, referred to as UE), UE can change the relevant Downlink Control Information (DCI) of information by detected carrier B multicast control channel on carrier wave A;
The component carrier A (i.e. above-mentioned first component carrier) of the Downlink Control Information that the multicast control channel change information that base station sends component carrier B is correlated with, can be configured by high-level signaling; Or any one carrier wave in PDCCH component carrier collection; Or resident carrier wave; Or a unique only carrier wave A or the one-component carrier wave A that only associate with expansion carrier wave B in the PDCCH component carrier collection of UE, now UE needs the multicast control channel change information detected on unique component carrier A.
Preferably, as shown in Figure 2, above-mentioned base station 10 comprises with one of lower device: the first indicating device 108, for when sending MCCH corresponding to second component carrier wave and changing information, adopts the Radio Network Temporary Identifier instruction second component carrier wave with carrier wave indicative character; Second indicating device 110, for when sending MCCH corresponding to second component carrier wave and changing information, adopts carrier indication information instruction second component carrier wave.
Preferably, the first indicating device 108, also for adopting self-defining multicast carrier to indicate Radio Network Temporary Identifier value instruction second component carrier wave; Second indicating device 110, also for adopting across carrier dispatching Radio Network Temporary Identifier value instruction second component carrier wave, or, adopt multicast wireless network temporary mark and carrier indication information instruction second component carrier wave.
In specific implementation process, when base station 10 adopts the wireless network temporary sign with carrier wave indicative character or the descending control information format carrying carrier indication information to determine the component carrier corresponding to multicast control channel change information to be sent on selected component carrier, be by defining a kind of carrier wave instruction Radio Network Temporary Identifier value CI-RNTI or being realized by the carrier indication information of carrying in DCIformat1C.
In above-mentioned transmission system, second indicating device 110 can define a kind of carrier wave indication signaling being specifically designed to the component carrier indicated corresponding to MCCH change information in the descending control information format (such as, DCIformat1C) carrying MCCH change information;
In specific implementation process, carry corresponding multicast control channel and change the descending control information format of information (such as, the carrier indication information of carrying DCIformat1C), MCCH can be carried on and change information bit position (such as, 8 bits) middle predetermined bit position is (such as, 3 bits), or, be carried in DCIformat1C and remove MCCH and change predetermined bit position behind information bit position in remaining bits (such as, 3 bits), or, be carried in the CRC scrambler of descending control information format 1C;
Preferably, in DCIformat1C, removing MCCH, to change remaining bits position after information and carrier indication information be reserved bit position.
Wherein, the amount of bits that the DCIformat1C carrying MCCH change information comprises is identical with the amount of bits that the DCIformat1C in correlation technique when the first component carrier bearing system information, random access information, call information comprises; The amount of bits that the DCIformat1C carrying MCCH change information comprises is identical with the amount of bits that the DCIformat1C that the first component carrier in correlation technique carries the Downlink Control Information of a streams of code words Physical Shared Channel comprises.
In above-mentioned transmission system, the different carrier multicast control channel that base station 10 sends on same carrier wave changes the DCI of information by using different scramblers to carry out scrambling CRC to the PDCCH of the corresponding DCI of carrying, thus, distinguish the DCI that different carrier multicast control channel changes information.A carrier wave instruction Radio Network Temporary Identifier value (Multicast-Carrierindicator-RadioNetworkTemporaryIdentifi er is distributed by each component carrier across carrier dispatching to needing in community, referred to as M-CI-RNTI), the PDCCH carrying the DCI of each carrier wave corresponding multicast control channel change information uses scrambler corresponding to each carrier wave to carry out scrambling CRC;
In specific implementation process, the CRC carrying the DCIformat1C of carrier indication information and multicast control channel change information adopts across carrier dispatching Radio Network Temporary Identifier value, or adopt M-RNTI and carrier indication information (CI) scrambling, wherein, across carrier dispatching Radio Network Temporary Identifier value by signal deployment, do not carry carrier indication information, only carry the CRC employing M-RNTI scrambling that multicast control channel changes the DCIformat1C of information, in other words, for end side, for R9 version UE, base station is when sending MCCH and revising information, carry the CRC employing M-RNTI scrambling that MCCH changes the DCIformat1C of information, for R10 version or R10 with adjustment of the printing plate UE, base station is when sending MCCH and revising information, carry CRC that MCCH changes the DCIformat1C of information and adopt one of following mode scrambling: adopt the scrambling of multicast carrier instruction Radio Network Temporary Identifier value, adopt across the scrambling of carrier dispatching Radio Network Temporary Identifier value, adopt multicast wireless network temporary mark value and carrier indication information scrambling, adopt the scrambling of multicast wireless network temporary mark value.
Wherein, for R10 version or R10 with adjustment of the printing plate UE, when UE is arranged in R9 version network, the CRC of descending control information format 1C adopts the scrambling of multicast wireless network temporary mark value; For R10 version or R10 with adjustment of the printing plate subscriber equipment, when UE is arranged in R10 version or R10 with adjustment of the printing plate network, when the first deal carrier wave is identical with the second deal carrier wave time, the CRC of descending control information format 1C can adopt the scrambling of multicast wireless network temporary mark value; When UE is arranged in R10 version or R10 with adjustment of the printing plate network, when the first deal carrier wave is different with the second deal carrier wave time, the CRC of descending control information format 1C adopts across the value scrambling of carrier dispatching Radio Network Temporary Identifier or adopts multicast wireless network temporary mark value and carrier indication information scrambling or adopt the scrambling of multicast carrier instruction Radio Network Temporary Identifier value.
Preferably, base station 10, also for send on the first component carrier be same as MCCH corresponding to the second component carrier wave of the first component carrier change the send mode of information time, adopt multicast wireless network temporary mark value to carry out scrambling to the CRC of descending control information format 1C.
Fig. 3 is that MCCH changes the information transmission schematic diagram of the transmission system of information according to the preferred embodiment of the invention.As shown in Figure 3, this process mainly comprises following process (step S302-step 306):
Step S302: the base station 10 in this transmission system is that multicast control channel to be sent changes selected first component carrier of information;
Step S304: base station 10 sends multicast control channel to be sent to user equipment (UE) and changes information on the first selected component carrier, wherein, selected component carrier utilizes and there is the Radio Network Temporary Identifier of carrier wave indicative character (such as, M-CI-RNTI) or the carrier indication information of carrying determine the component carrier corresponding to multicast control channel change information to be sent, or, the component carrier corresponding to multicast control channel change information be exactly the selected component carrier sent;
Step S306: subscriber equipment 20 receives the multicast control channel sent from base station 10 and changes information on the first selected component carrier, utilizes the wireless network temporary sign with carrier wave indicative character or carrier indication information to distinguish this multicast control channel and changes component carrier corresponding to information.
According to the embodiment of the present invention, additionally provide the transmission method that a kind of MCCH changes information.
Fig. 4 is the flow chart changing the transmission method of information according to the MCCH of the embodiment of the present invention.As shown in Figure 4, this transmission method mainly comprises following process (step S402-step S404):
Step S402: base station 10 is selected first component carrier in multiple component carriers; And
Step S404: MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment 20 by base station 10 on the first component carrier, and wherein, second component carrier wave is same or different from the first component carrier.
Under said system can realize multiple component carriers scene, multicast control channel changes information dynamic transmission, and realizes subscriber equipment 20 changes information correct acquisition to this multicast control channel.
Preferably, base station 10 is by selected first component carrier of one of following at least mode:
(1) according to the selected component carrier of high-level signaling instruction;
(2) unique carrier wave or unique association carrier wave in the Physical Downlink Control Channel component carrier collection of selected subscriber equipment;
(3) random selected component carrier is concentrated from physical downlink control channel PDCCH component carrier;
(4) select resident carrier wave as the first component carrier.
The specific descriptions of first to fourth selecting apparatus that the specific descriptions of aforesaid way can comprise see base station in transmission system.
By above-mentioned process, employing which or which component carrier can be solved to send the problem that multicast control channel changes information.
Preferably, MCCH corresponding for second component carrier wave is changed information and carries out transmission and comprise by base station on the first component carrier: base station adopts the Radio Network Temporary Identifier (RNTI) with carrier wave indicative character or indicates second component carrier wave by carrier indication information on the first component carrier.
Preferably, Radio Network Temporary Identifier comprises: self-defining multicast carrier instruction Radio Network Temporary Identifier value.
By above-mentioned process, can solve on selected carrier wave, how indicate multicast control channel change information to be sent to be the problems such as the multicast control channel change information of which component carrier.
In specific implementation process, in step S404, selected component carrier utilizes the RNTI of new definition or carrier indication information determine that multicast control channel to be sent changes the step of the component carrier corresponding to the DCI of information, a kind ofly can have the wireless network temporary sign CI-RNTI of carrier wave indicative character or determine the component carrier corresponding to multicast control channel change information to be sent by carrier indication information by defining.
By above-mentioned process, adopt M-CI-RNTI and new carrier indication information to indicate carried multicast control channel and change carrier wave corresponding to information, terminal can correctly be received.Thus can be implemented in a Downlink Control Information carrier wave sending other carrier wave multicast control channels change information, thus under solution carrier aggregation scene, multicast control channel changes acquisition problem and the dynamic transmission of information.
Below respectively the scheme adopting M-CI-RNTI and employing carrier indication information to indicate is described.
(1) M-CI-RNTI is adopted to indicate
When existing in community by component carrier across carrier dispatching, different M-CI-RNTI is configured by each component carrier across carrier dispatching by high-level signaling, select in the RNTI numerical value that the value of this M-CI-RNTI can be reserved from LTE system, namely reserved value FFF3 ~ FFFC is comprised, different component carriers has different M-CI-RNTI values, does not conflict with the RNTI of other kinds.Or, change component carrier index determination carrier wave instruction Radio Network Temporary Identifier value corresponding to information according to Radio Network Temporary Identifier and MCCH, such as: M-CI-RNTI=M-RNTI+CI;
When the MCCH change information of component carrier B sends on this carrier wave B, the CRC carrying the DCIformat1C of the MCCH change information of component carrier B directly uses M-RNTI scrambling, when the DCI that the MCCH of component carrier B changes information does not send on this carrier wave B, such as, when the component carrier A utilizing above-mentioned four kinds of modes to select sends, the MCCH carrying component carrier B changes the M-CI-RNTI scrambling of the CRC component carrier B of the DCIformat1C of information.
UE reaches by descrambling verification DCI the object that the multicast control channel distinguishing different component carrier changes information.
Wherein, public search space is positioned at the DCIformat1C of M-CI-RNTI scrambling.
(2) carrier indication information is adopted to indicate
In specific implementation process, a kind of carrier wave indication signaling being specifically designed to the component carrier indicated corresponding to multicast control channel change information can be defined in DCIformat1C;
Preferably, the carrier indication information of descending control information format 1C is carried on MCCH and changes in the bit of information, or be carried in descending control information format 1C in other bits removing MCCH change information, wherein, multicast control channel changes information and is carried in the bit of descending control information format 1C, or, be carried in the CRC scrambler of descending control information format 1C.
In specific implementation process, carry corresponding multicast control channel and change the carrier indication information of carrying in the descending control information format 1C (DCIformat1C) of information, MCCH can be carried on and change information bit position (such as, 8 bits) middle predetermined bit position is (such as, 3 bits) in, or, be carried in DCIformat1C and remove MCCH change information bit position (such as, 8 bits) predetermined bit position (such as, 3 bits) afterwards in remaining bits;
Preferably, the remaining bits position removed in descending control information format 1C after MCCH change information and carrier indication information is reserved bit position.
Preferably, when MCCH corresponding for second component carrier wave change information is transmitted by base station on the first component carrier, the CRC of descending control information format 1C adopts across the scrambling of carrier dispatching Radio Network Temporary Identifier value, wherein, across carrier dispatching Radio Network Temporary Identifier value by signal deployment, or the CRC of descending control information format 1C adopts multicast wireless network temporary mark value and carrier indication information scrambling.
In specific implementation process, base station before selected first component carrier, can also comprise following process in multiple component carriers:
(1) base station is determined to send the mode that multicast control channel MCCH changes information according to the mode of making an appointment, wherein, the mode of making an appointment comprises: can only send MCCH corresponding to the first component carrier and change information on the first component carrier, namely, the first component carrier can not send MCCH corresponding to other component carriers and change information;
(2) base station adopts a kind of send mode of two kinds of send modes by signaling message notification terminal, wherein, two kinds of send modes comprise: can only send MCCH corresponding to the first component carrier and change information on the first component carrier, namely, the first component carrier can not send MCCH corresponding to other component carriers and change information; And can send MCCH corresponding to second component carrier wave and change information on the first component carrier, the second deal carrier wave and the first component carrier can be identical or different.
Preferably, when base station adopt can only send on the first component carrier MCCH corresponding to the first component carrier change information time, the CRC of descending control information format 1C adopts Radio Network Temporary Identifier value (i.e. M-RNTI) scrambling.
Preferably, carry multicast control channel and change that amount of bits that the descending control information format 1C of information comprises and the first component carrier carry system information, random access information, amount of bits that the descending control information format 1C of call information comprises are identical; And/or the bit stream quantity that the descending control information format 1C of carrying multicast control channel change information comprises is identical with the bit stream quantity that the descending control information format 1C that the first component carrier carries the Downlink Control Information of a streams of code words Physical Shared Channel comprises.
Preferably, the descending control information format 1C carrying multicast control channel change information is arranged in public search space.
Preferably, when MCCH corresponding for second component carrier wave being changed information transmission to subscriber equipment in base station, further comprising the steps of:
(1) subscriber equipment receives MCCH change information corresponding to second component carrier wave on the first component carrier;
(2) second component carrier wave determined corresponding to this MCCH change information according to multicast carrier instruction Radio Network Temporary Identifier value or carrier indication information by subscriber equipment.
Preferably, when subscriber equipment is R9 version subscriber equipment, the CRC of descending control information format 1C adopts the scrambling of multicast wireless network temporary mark value.
Preferably, subscriber equipment is that R10 version or R10 are with adjustment of the printing plate subscriber equipment, when base station adopt to send on the first component carrier be different from MCCH corresponding to the second component carrier wave of the first component carrier change the send mode of information time, the CRC of descending control information format 1C adopts one of following mode scrambling: adopt the scrambling of multicast carrier instruction Radio Network Temporary Identifier value; Adopt across the scrambling of carrier dispatching Radio Network Temporary Identifier value; Adopt multicast wireless network temporary mark value and carrier indication information scrambling.
In specific implementation process, for R10 version or R10 with adjustment of the printing plate UE, when UE is arranged in R9 version network, the CRC of descending control information format 1C can adopt multicast carrier to indicate the scrambling of Radio Network Temporary Identifier value; For R10 version or R10 with adjustment of the printing plate subscriber equipment, when UE is arranged in R10 version or R10 with adjustment of the printing plate network, when the first deal carrier wave is identical with the second deal carrier wave time, the CRC of descending control information format 1C can adopt the scrambling of multicast wireless network temporary mark value; When UE is arranged in R10 version or R10 with adjustment of the printing plate network, when the first deal carrier wave is different with the second deal carrier wave time, the CRC of descending control information format 1C adopts across the value scrambling of carrier dispatching Radio Network Temporary Identifier or adopts multicast wireless network temporary mark value and carrier indication information scrambling.
In specific implementation process, for R10 version or R10 with adjustment of the printing plate UE, when base station adopt can only send on the first component carrier MCCH corresponding to the first component carrier change information time, the CRC of descending control information format 1C adopts the scrambling of multicast carrier instruction Radio Network Temporary Identifier value.
Example one
This example mainly describes the component carrier adopting high-level signaling configuration mode to select transmission MCCH change information, adopts M-CI-RNTI to carry out the scheme of scrambling instruction.Be described below in conjunction with Fig. 5.
As shown in Figure 5, suppose there is three carrier wave CC1, CC2, CC3.CC3 is expansion carrier wave, and the PDCCHCCset (component carrier collection) of UE is inner 2 component carriers, is denoted as CC1, CC2.
Because expansion carrier wave CC3 does not have PDCCH, can be sent on other component carriers by high-level signaling instruction so the multicast control channel of expansion carrier wave changes information.
High-level signaling is FFFC (16 system) to the M-CI-RNTI that CC3 distributes.
When the multicast control channel change information of expansion carrier wave CC3 is sent on component carrier CC2 by high-level signaling instruction by base station, then the CRC of corresponding DCI M-CI-RNTI=FFFC (16 system) scrambling of expansion carrier wave CC3;
UE changes information according to the multicast control channel of high-level signaling instruction blind Detecting expansion carrier wave CC3 on CC2, detects DCIformat1C at public search space, separates CRC with the M-CI-RNTI=FFFC of expansion carrier wave CC3, verification DCI information.
By above-mentioned process, UE can obtain the change information of the multicast control channel of expansion carrier wave CC3 according to the DCI solved.
Example two
This example mainly describes the component carrier adopting Stochastic choice mode to select transmission multicast control channel change information, adopts the descending control information format DCIformatX of new definition to indicate.Be described below in conjunction with Fig. 5.
As shown in Figure 5, suppose there is three carrier wave CC1, CC2, CC3.CC3 is expansion carrier wave, and the PDCCHCCset (component carrier collection) of UE is inner 2 component carriers, is denoted as CC1, CC2.
UE needs the multicast control channel obtaining CC1, CC2 and CC3 to change information.Then UE on the component carrier CC blind Detecting CC1 multicast control channel change information, on component carrier CC2, the multicast control channel of blind Detecting CC2 changes information, the carrier wave of component carrier collection detects, such as, on CC1 and CC2, the multicast control channel of blind Detecting expansion carrier wave CC3 changes information.
Base station utilizes high-level signaling to change the CRC of the DCI of information to the multicast control channel of UE configuration M-CI-RNTI=FFF4 (16 system) scrambling expansion carrier wave CC3.
When the multicast control channel of UE blind Detecting expansion carrier wave CC3 on carrier wave CC1 and CC2 of component carrier collection changes the DCI of information, with M-CI-RNTI=FFF4 (16 system), descrambling is carried out to CRC, then verify DCI information, understand corresponding information according to the information content of the DCIformat1C including carrier indication information.
The component carrier corresponding according to the carrier wave instruction CI information acquisition MCCH change information in DCIformat1C is CC3.Then change according to the multicast control channel in DCIformat1C the change that information determines the multicast control channel of CC3.
In sum, pass through the above embodiment of the present invention, the multicast control channel MCCH provided changes the transmission plan of information, can solve that on selected carrier wave, how to indicate sent multicast control channel to change information be that the multicast control channel of which component carrier changes information, so that user equipment (UE) can identify, the multicast control channel of each component carrier of Obtaining Accurate changes information.By the component carrier of selected transmission, and accurately indicate multicast control channel change information corresponding to which component carrier, just can be implemented on a carrier wave and send the Downlink Control Information that other carrier wave multicast control channels change information; Thus, solve not across carrier dispatching and the acquisition problem changing information across multicast control channel under carrier dispatching two kinds of carrier aggregation scenes.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
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 amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (21)
1. multicast control channel MCCH changes a transmission method for information, under being applied in the scene of multiple component carriers, it is characterized in that, comprises the following steps:
Base station is selected first component carrier in described multiple component carriers; And
MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment by described base station on described first component carrier, wherein, described second component carrier wave is same or different from described first component carrier, and MCCH corresponding for described second component carrier wave change information is carried out transmission and comprised by described base station on described first component carrier: described base station adopts the Radio Network Temporary Identifier with carrier wave indicative character to indicate described second component carrier wave or indicate described second component carrier wave by carrier indication information on described first component carrier.
2. method according to claim 1, is characterized in that, described first component carrier is selected by one of following at least mode in described base station:
According to the selected component carrier of high-level signaling instruction;
Unique carrier wave or unique association carrier wave in the Physical Downlink Control Channel component carrier collection of selected subscriber equipment;
Random selected component carrier is concentrated from physical downlink control channel PDCCH component carrier;
Select resident carrier wave as described first component carrier.
3. method according to claim 2, is characterized in that, described Radio Network Temporary Identifier comprises: self-defining multicast carrier instruction Radio Network Temporary Identifier value.
4. method according to claim 3, it is characterized in that, described multicast carrier instruction Radio Network Temporary Identifier value is determined by one of following mode: be configured by high-level signaling, wherein, and a carrier wave corresponding multicast carrier instruction Radio Network Temporary Identifier value; Change component carrier index corresponding to information according to multicast wireless network temporary mark and MCCH and determine described multicast carrier instruction Radio Network Temporary Identifier value.
5. method according to claim 3, it is characterized in that, use described multicast carrier to indicate Radio Network Temporary Identifier value to carry to what described first component carrier sent the cyclic redundancy check (CRC) scrambling that described corresponding multicast control channel changes the descending control information format 1C of information.
6. method according to claim 1, is characterized in that, described carrier indication information is carried in the bit of descending control information format 1C, and described multicast control channel changes information and is carried in the bit of described descending control information format 1C.
7. method according to claim 6, it is characterized in that, the described MCCH that described carrier indication information is carried on descending control information format 1C changes in the bit of information, or be carried in described descending control information format 1C in other bits removing described MCCH change information, or, be carried in the CRC scrambler of descending control information format 1C.
8. method according to claim 7, is characterized in that, the remaining bits position removed in described descending control information format 1C after described MCCH change information and described carrier indication information is reserved bit position.
9. method according to claim 6, it is characterized in that, the CRC of described descending control information format 1C adopts across the scrambling of carrier dispatching Radio Network Temporary Identifier value, wherein, described across carrier dispatching Radio Network Temporary Identifier value by signal deployment, or the CRC of described descending control information format 1C adopts described multicast wireless network temporary mark value and described carrier indication information scrambling.
10. method according to claim 1, is characterized in that, base station is in described multiple component carriers before selected first component carrier, and described method also comprises:
Base station is determined to send the mode that multicast control channel MCCH changes information according to the mode of making an appointment, wherein, described in the mode of making an appointment comprise: MCCH corresponding to described first component carrier can only be sent change information on described first component carrier; Or
By signaling message, described base station notifies that described subscriber equipment adopts a kind of send mode of two kinds of send modes, wherein, described two kinds of send modes comprise: can only send MCCH corresponding to described first component carrier and change information on described first component carrier; And can send MCCH corresponding to described second component carrier wave and change information on described first component carrier, the second deal carrier wave and the first component carrier can be identical or different.
11. methods according to claim 10, it is characterized in that, when described base station adopt can only send on described first component carrier MCCH corresponding to described first component carrier change information time, the CRC of descending control information format 1C adopts the scrambling of multicast wireless network temporary mark value.
12. methods according to claim 1 or 11, is characterized in that,
Carry described multicast control channel and change that amount of bits that the descending control information format 1C of information comprises and described first component carrier carry system information, random access information, amount of bits that the descending control information format 1C of call information comprises are identical; And/or
The bit stream quantity that the descending control information format 1C carrying described multicast control channel change information comprises is identical with the bit stream quantity that the descending control information format 1C that described first component carrier carries the Downlink Control Information of a streams of code words Physical Shared Channel comprises.
13. methods according to claim 1 or 11, is characterized in that, carry the descending control information format 1C that described multicast control channel changes information and are arranged in public search space.
14. methods according to any one of claim 3 to 9, is characterized in that, when MCCH corresponding for second component carrier wave being changed information transmission to described subscriber equipment in described base station, further comprising the steps of:
Described subscriber equipment receives MCCH corresponding to described second component carrier wave and changes information on described first component carrier;
Described subscriber equipment determines the described second component carrier wave corresponding to this MCCH change information according to described multicast carrier instruction Radio Network Temporary Identifier value or described carrier indication information.
15. methods according to claim 1 or 11, it is characterized in that, when described subscriber equipment is R9 version subscriber equipment, the CRC of descending control information format 1C adopts the scrambling of described multicast wireless network temporary mark value.
16. methods according to claim 1, is characterized in that, when described subscriber equipment be R10 version or R10 with adjustment of the printing plate subscriber equipment time, the CRC of descending control information format 1C adopts one of following mode scrambling:
Described multicast carrier is adopted to indicate the scrambling of Radio Network Temporary Identifier value; Adopt across the scrambling of carrier dispatching Radio Network Temporary Identifier value; Adopt described multicast wireless network temporary mark value and described carrier indication information scrambling.
17. methods according to claim 11, is characterized in that, when described subscriber equipment be R10 version or R10 with adjustment of the printing plate subscriber equipment time, the CRC of described descending control information format 1C adopts the scrambling of described multicast wireless network temporary mark value.
18. 1 kinds of multicast control channel MCCH change the transmission system of information, under being applied in the scene of multiple component carriers, it is characterized in that, comprise with lower device:
Base station, for the first component carrier selected in described multiple component carriers, and on described first component carrier, MCCH corresponding for second component carrier wave is changed information transmission to subscriber equipment, wherein, described second component carrier wave is same or different from described first component carrier; And
Described subscriber equipment, change information for receiving MCCH corresponding to described second component carrier wave on described first component carrier, wherein, described base station comprises with one of lower device:
First indicating device, for when sending MCCH corresponding to described second component carrier wave and changing information, adopts the Radio Network Temporary Identifier with carrier wave indicative character to indicate described second component carrier wave;
Second indicating device, for when sending MCCH corresponding to described second component carrier wave and changing information, adopts carrier indication information to indicate described second component carrier wave.
19. systems according to claim 18, is characterized in that, described base station comprises with one of lower device:
First choice device, for selecting component carrier according to high-level signaling instruction;
Second choice device, for unique carrier wave selected in the Physical Downlink Control Channel component carrier collection of subscriber equipment or unique association carrier wave;
3rd choice device, for concentrating random selected component carrier from physical downlink control channel PDCCH component carrier;
4th choice device, for selecting resident carrier wave as described first component carrier.
20. systems according to claim 18 or 19, is characterized in that, described first indicating device, also for adopting self-defining multicast carrier to indicate Radio Network Temporary Identifier value to indicate described second component carrier wave; Described second indicating device, also indicates described second component carrier wave for adopting across carrier dispatching Radio Network Temporary Identifier value, or, adopt multicast wireless network temporary mark and carrier indication information to indicate described second component carrier wave.
21. systems according to claim 18 or 19, it is characterized in that, described base station, also for can only send on described first component carrier MCCH corresponding to described first component carrier change information time, adopt multicast wireless network temporary mark value to carry out scrambling to the CRC of descending control information format 1C.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010123829.2A CN101800942B (en) | 2010-02-11 | 2010-02-11 | MCCH changes transmission method and the system of information |
| PCT/CN2010/080392 WO2011097930A1 (en) | 2010-02-11 | 2010-12-28 | Method and system for transmitting multipoint control channel change information |
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| CN201010123829.2A CN101800942B (en) | 2010-02-11 | 2010-02-11 | MCCH changes transmission method and the system of information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101800942B (en) * | 2010-02-11 | 2016-04-13 | 中兴通讯股份有限公司 | MCCH changes transmission method and the system of information |
| CN102625457B (en) * | 2011-02-01 | 2018-01-05 | 中兴通讯股份有限公司 | Transmission, reception and the transmission method and relevant apparatus of Downlink Control Information |
| CN102624507B (en) | 2011-02-01 | 2015-04-08 | 华为技术有限公司 | Uplink/downlink scheduling information transmitting and receiving methods and device |
| GB2488533B (en) | 2011-02-18 | 2013-09-04 | Sca Ipla Holdings Inc | Communication units and methods for control channel change notification in broadcast communication |
| GB2488532B (en) * | 2011-02-18 | 2013-06-05 | Sca Ipla Holdings Inc | Communication units and methods for control change notification in broadcast communication |
| CN102769826B (en) * | 2011-05-02 | 2015-07-15 | 上海贝尔股份有限公司 | Method and equipment for allowing UE (user equipment) to receive and receiving MBMS (multimedia broadcast multicast service) at UE |
| CN102857865B (en) * | 2011-06-29 | 2016-12-07 | 中兴通讯股份有限公司 | Multicarrier system receives method and the subscriber equipment of MBMS |
| CN102905224B (en) * | 2011-07-29 | 2016-05-25 | 中国移动通信集团公司 | Sending method, base station and the system of announcement information |
| CN102905223A (en) * | 2011-07-29 | 2013-01-30 | 中国移动通信集团公司 | Receiving system, method, base station and terminal for service receiving request information |
| US20130114572A1 (en) * | 2011-11-04 | 2013-05-09 | Mo-Han Fong | Uplink synchronization with multiple timing advances in a wireless communication environment |
| US9980247B2 (en) * | 2012-10-26 | 2018-05-22 | Qualcomm Incorporated | Primary cell signaling for eMBMS in carrier aggregation |
| US10111049B2 (en) | 2012-10-26 | 2018-10-23 | Qualcomm Incorporated | Multiband eMBMS enhancement using carrier aggregation |
| CN104412625B (en) * | 2013-01-25 | 2018-10-19 | 华为技术有限公司 | Channel changes acquisition method, notification method and equipment |
| EP3107323B1 (en) | 2014-02-13 | 2019-08-28 | Huawei Technologies Co., Ltd. | Uplink signal control method and apparatus |
| CN104753482A (en) * | 2015-04-06 | 2015-07-01 | 王文平 | Series feedback balance high-fidelity audio amplifying circuit |
| CN113194514A (en) | 2015-10-13 | 2021-07-30 | 华为技术有限公司 | Method, equipment and system for switching sub-bands |
| CN113453337B (en) * | 2020-03-27 | 2023-06-27 | 维沃移动通信有限公司 | Broadcast multicast service transmission method, broadcast multicast service transmission indication method and equipment |
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| CN101800942B (en) * | 2010-02-11 | 2016-04-13 | 中兴通讯股份有限公司 | MCCH changes transmission method and the system of information |
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| WO2007108630A1 (en) * | 2006-03-21 | 2007-09-27 | Lg Electronics Inc. | Method of transmitting/receiving lte system information in a wireless communication system |
| CN101610564A (en) * | 2009-04-29 | 2009-12-23 | 中兴通讯股份有限公司 | A kind of transmission of Downlink Control Information and detection method |
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