CN104412625A

CN104412625A - Channel change learning method, notification method, and device

Info

Publication number: CN104412625A
Application number: CN201380035317.2A
Authority: CN
Inventors: 成艳; 周永行; 高振兴; 范霄安
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-01-25
Filing date: 2013-01-25
Publication date: 2015-03-11
Anticipated expiration: 2033-01-25
Also published as: CN104412625B; WO2014113968A1

Abstract

Embodiments of the present invention provide a channel change learning method, notification method, and device. The learning method comprises: a UE decoding a downlink control channel scrambled by using a specified RNTI in a change notification search space, wherein the change notification search space refers to a search space used by a UE to obtain an MCCH change notification corresponding to a supplementary carrier; and the UE acquiring, from a DCI format corresponding to the downlink control channel, information used for indicating the MCCH change notification corresponding to the supplementary carrier. The technical solution of the present invention implements the MCCH change notification corresponding to the supplementary carrier, facilitates an MBMS service to be carried out on the supplementary carrier, and improves utilization of a frequency resource.

Description

CHANNEL CHANGE LEARNING METHOD, NOTIFICATION METHOD, AND DEVICE

Channel change acquisition method, Notification Method and equipment

Technical field

The present embodiments relate to the communication technology, more particularly to a kind of channel change acquisition method, Notification Method and equipment.Background technology

Long Term Evolution（Long Term Evolution, referred to as LTE) key property in system is based on synchronous SFN, using OFDM（Orthogonal Frequency Division Multiplexing, referred to as OFDM) wave point transmission multi-case data or broadcast data, it is referred to as multimedia broadcasting SFN (Multimedia Broadcast multicast service Single Frequency Network, referred to as MBSFN) operation.In LTE system, including support the multimedia broadcast multi-broadcasting business on special carrier（Multimedia Broadcast Multicast Service, referred to as MBMS), utilize all sub-frame transmission MBSFN business on special carrier, and support to share MBMS and unicast service on single carrier, or be mixing MBSFN business, i.e., realize MBSFN business and the time division multiplexing of unicast service in the different subframes of carrier wave.

In LTE system, user equipment（User Equipment, referred to as UE) in broadcast message (the System Information Block 2 of system information block 2, referred to as SIB2) middle acquisition MBSFN sub-frame information (MBSFN-SubframeConfig fields) is MBSFN sub-frame according to which subframe in the MBSFN sub-frame acquisition of information carrier wave.UE obtains the information of transmission MBMS subframe in RRC information, and transmission MBMS subframe is a subset of MBSFN sub-frame obtained in SIB2 that broadcasts the message.UE reads SIB 13, obtains logic channel MBMS Control Channel（MBMS Control Channel, referred to as MCCH) information, further according to instruction acquisition logic channel MBMS channel (MBMC Traffic Channel, referred to as MTCH) information of MCCH information.UE receives MBMS in transmission MBMS subframe.Repetition period of the MCCH information to configure（Repetition period) periodically send.When MCCH information changes, network side equipment notifies MCCH information to change first within a modification cycle, and Physical Downlink Control Channel is sent especially by UE（Physical Downlink Control Channel, referred to as PDCCH), wherein PDCCH correspondence Downlink Control Information（Downlink Control Information, referred to as DCI) form 1C, takes in the DCI format Band 8-bit information is used to indicate MCCH Notifications of Changes；Then the content of MCCH information is updated within next modification cycle.

In enhanced LTE (LTE-Advanced, referred to as LTE-A) system, carrier aggregation is introduced（Carrier Aggregation, referred to as CA) technology.In carrier aggregation scene, the PDCCH for carrying MCCH Notifications of Changes is only sent in public search space, UE only monitors public search space on main carrier, so UE can not just receive the corresponding MCCH Notifications of Changes of secondary carrier, in secondary carrier can not developing MBMS service, be unfavorable for making full use of for frequency spectrum resource.The content of the invention

The embodiment of the present invention provides a kind of channel change acquisition method, Notification Method and equipment, the notice to realize the corresponding MCCH changes of secondary carrier, with the developing MBMS service in secondary carrier, improves the utilization rate of frequency resource.

First aspect provides a kind of channel change acquisition method, including：

User equipment is based on specifying Downlink Control Information DCI format specifying search for space, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

The MCCH Notifications of Changes that the user equipment is carried based on the down control channel, know that MCCH is changed.

With reference in a first aspect, in the first possible implementation of first aspect, proprietary search space is in the space that specifies search for.

With reference to the first possible implementation of first aspect, in second of possible implementation of first aspect, the proprietary search space is the corresponding proprietary search space of secondary carrier.

With reference to second of possible implementation of first aspect, in the third possible implementation of first aspect, the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

With reference in a first aspect, in the 4th kind of possible implementation of first aspect, the user equipment is based on specifying DCI format specifying search for space, to being entered using the specified RNTI down control channels scrambled before row decoding, including：

The user equipment specifies search for space according to being determined multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI；Or,

The user equipment specifies search for space according to being determined M-RNTI and carrier index. With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation of first aspect, the carrier index is the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.

It is described to specify search for being spatially located in secondary carrier in the 6th kind of possible implementation of first aspect with reference to the 4th kind of possible implementation of first aspect.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or first aspect of the 4th kind of possible implementation or first aspect of first aspect, in the 7th kind of possible implementation of first aspect, the specified RNTI is the M-RNTI.

With reference in a first aspect, in the 8th kind of possible implementation of first aspect, public search space is in the space that specifies search for.

With reference to the 8th kind of possible implementation of first aspect, in the 9th kind of possible implementation of first aspect, the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

With reference to the 8th kind of possible implementation of first aspect, in the tenth kind of possible implementation of first aspect, the user equipment is based on specifying DCI format specifying search for space, to being entered using the down control channel for specifying RNTI to be scrambled before row decoding, including：

The user equipment receives the broadcast message that network side equipment is sent, and the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different；

The user is based on specifying DCI format specifying search for space, to entering row decoding using the down control channel for specifying RNTI to be scrambled, including：

The user equipment is according to the information of the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

With reference to the tenth kind of possible reality of the 9th kind of possible implementation or first aspect of the 8th kind of possible implementation or first aspect of the 7th kind of possible implementation or first aspect of the 6th kind of possible implementation or first aspect of the 5th kind of possible implementation or first aspect of the 4th kind of possible implementation or first aspect of the third possible implementation or first aspect of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect Existing mode, in a kind of the tenth possible implementation of first aspect, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and second information field is used to indicate MCCH Notifications of Changes；

The MCCH Notifications of Changes that the user equipment is carried based on the down control channel, know that MCCH is changed, including：

The value in first information domain knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave in the DCI format that the user equipment is carried based on the down control channel.

With reference to a kind of the tenth possible implementation of first aspect, in the 12nd kind of possible implementation of first aspect, the specified DCI format is form 1C, and the first information domain is carrier wave instructions field CIF.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or first aspect of the 8th kind of possible implementation or first aspect of the 7th kind of possible implementation or first aspect of the 6th kind of possible implementation or first aspect of the 5th kind of possible implementation or first aspect of the 4th kind of possible implementation or first aspect of the third possible implementation or first aspect of second possible implementation or first aspect of the first possible implementation or first aspect of first aspect or first aspect, in the 13rd kind of possible implementation of first aspect, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

With reference to the 13rd kind of possible implementation of first aspect, in the 14th kind of possible implementation of first aspect, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.

Second aspect provides a kind of channel alteration notification method, including：

Network side equipment is scrambled using specified Radio Network Temporary Identifier RNTI to down control channel, and the down control channel carries MCCH Notifications of Changes；

The network side equipment is specifying search for space, and the descending control after the scrambling is sent to user equipment Channel processed.

With reference to second aspect, in the first possible implementation of second aspect, proprietary search space is in the space that specifies search for.

With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect, the proprietary search space is the corresponding proprietary search space of secondary carrier of the user equipment.

With reference to second of possible implementation of second aspect, in the third possible implementation of second aspect, the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

With reference to second aspect, in the 4th kind of possible implementation of second aspect, the network side equipment is specifying search for space, to before the down control channel after the user equipment transmission scrambling, including：The network side equipment specifies search for space according to being determined the multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI of the user equipment；Or,

The network side equipment specifies search for space according to being determined the M-RNTI and carrier index of the user equipment.

With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, the carrier index is the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.

It is described to specify search for being spatially located in the secondary carrier of the user equipment in the 6th kind of possible implementation of second aspect with reference to the 4th kind of possible implementation of second aspect.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or second aspect of the 4th kind of possible implementation or second aspect of second aspect, in the 7th kind of possible implementation of second aspect, the specified RNTI is the M-RNTI.

With reference to second aspect, in the 8th kind of possible implementation of second aspect, public search space is in the space that specifies search for.

With reference to the 8th kind of possible implementation of second aspect, in the 9th kind of possible implementation of second aspect, the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

With reference to the 8th kind of possible implementation of second aspect, in the tenth kind of possible implementation of second aspect, the network side equipment is specifying search for space, to before the down control channel after the user equipment transmission scrambling, including：

The network side equipment sends to the user equipment and broadcast the message, and the broadcast message carries finger Show the information of the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different；

The network side equipment is specifying search for space, and the down control channel after the scrambling is sent to user equipment, including：

The network side equipment is specifying search for space in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, and the down control channel after the scrambling is sent to the user equipment.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or second aspect of the 8th kind of possible implementation or second aspect of the 7th kind of possible implementation or second aspect of the 6th kind of possible implementation or second aspect of the 5th kind of possible implementation or second aspect of the 4th kind of possible implementation or second aspect of the third possible implementation or second aspect of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in a kind of the tenth possible implementation of second aspect, first information domain and the second information field are included in the corresponding Downlink Control Information DCI format of the down control channel, the first information domain is used to indicate the corresponding carrier wave of the down control channel, the second information field user indicates MCCH Notifications of Changes.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or second aspect of the 8th kind of possible implementation or second aspect of the 7th kind of possible implementation or second aspect of the 6th kind of possible implementation or second aspect of the 5th kind of possible implementation or second aspect of the 4th kind of possible implementation or second aspect of the third possible implementation or second aspect of second possible implementation or second aspect of the first possible implementation or second aspect of second aspect or second aspect, in the 12nd kind of possible implementation of second aspect, MCCH Notification of Changes instructions field is included in the corresponding DCI format of the down control channel, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

With reference to the 12nd kind of possible implementation of second aspect, in the 13rd kind of possible implementation of second aspect, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit. The third aspect provides a kind of user equipment, including：

Decoding module, for specifying search for space based on specified Downlink Control Information DCI format, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

Acquisition module, for the MCCH Notifications of Changes carried based on the down control channel, is known

MCCH is changed.

With reference to the third aspect, in the first possible implementation of the third aspect, proprietary search space is in the space that specifies search for.

With reference to the first possible implementation of the third aspect, in second of possible implementation of the third aspect, the proprietary search space is the corresponding proprietary search space of secondary carrier.

With reference to second of possible implementation of the third aspect, in the third possible implementation of the third aspect, the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

With reference to the third aspect, in the 4th kind of possible implementation of the third aspect, the user equipment also includes：Determining module, space is specified search for for before the decoding module enters row decoding, specifying search for space according to being determined multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI, or according to being determined M-RNTI and carrier index.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation of the third aspect, the carrier index is the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.

It is described to specify search for being spatially located in secondary carrier in the 6th kind of possible implementation of the third aspect with reference to the 4th kind of possible implementation of the third aspect.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or the third aspect of the 4th kind of possible implementation or the third aspect of the third aspect, in the 7th kind of possible implementation of the third aspect, the specified RNTI is the M-RNTI.

With reference to the third aspect, in the 8th kind of possible implementation of the third aspect, public search space is in the space that specifies search for.

With reference to the 8th kind of possible implementation of the third aspect, in the 9th kind of possible implementation of the third aspect, the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

With reference to the 8th kind of possible implementation of the third aspect, in the tenth kind of possible reality of the third aspect In existing mode, the user equipment also includes：Receiving module, for before the decoding module enters row decoding, receive the broadcast message that network side equipment is sent, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different；

The decoding module is specifically for the information according to the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or the third aspect of the 8th kind of possible implementation or the third aspect of the 7th kind of possible implementation or the third aspect of the 6th kind of possible implementation or the third aspect of the 5th kind of possible implementation or the third aspect of the 4th kind of possible implementation or the third aspect of the third possible implementation or the third aspect of second possible implementation or the third aspect of the first possible implementation or the third aspect of the third aspect or the third aspect, in a kind of the tenth possible implementation of the third aspect, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, second information field is used to indicate MCCH Notifications of Changes；

The acquisition module knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave specifically for the value in first information domain in the DCI format that is carried based on the down control channel.

With reference to a kind of the tenth possible implementation of the third aspect, in the 12nd kind of possible implementation of the third aspect, the specified DCI format is form 1C, and the first information domain is carrier wave instructions field

CIF。

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or the third aspect of the 8th kind of possible implementation or the third aspect of the 7th kind of possible implementation or the third aspect of the 6th kind of possible implementation or the third aspect of the 5th kind of possible implementation or the third aspect of the 4th kind of possible implementation or the third aspect of the third possible implementation or the third aspect of second possible implementation or the third aspect of the first possible implementation or the third aspect of the third aspect or the third aspect, in the 13rd kind of possible implementation of the third aspect, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the bit correspondence MCCH change；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

With reference to the 13rd kind of possible implementation of the third aspect, in the 14th kind of possible implementation of the third aspect, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.

Fourth aspect provides a kind of network side equipment, including：

Scrambling module, for being scrambled using specified Radio Network Temporary Identifier RNTI to down control channel, the down control channel carries MCCH Notifications of Changes；

Sending module, for specifying search for space, the down control channel after the scrambling is sent to user equipment.

With reference to fourth aspect, in the first possible implementation of fourth aspect, proprietary search space is in the space that specifies search for.

With reference to the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect, the proprietary search space is the corresponding proprietary search space of secondary carrier of the user equipment.

With reference to second of possible implementation of fourth aspect, in the third possible implementation of fourth aspect, the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

With reference to fourth aspect, in the 4th kind of possible implementation of fourth aspect, the network side equipment also includes：Determining module, for before the down control channel that the sending module sends after the scrambling, determined according to the multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI of the user equipment it is described specify search for space, or specify search for space described in M-RNTI according to the user equipment and carrier index determination.

With reference to the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, the carrier index is the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.

It is described to specify search for being spatially located in the secondary carrier of the user equipment in the 6th kind of possible implementation of fourth aspect with reference to the 4th kind of possible implementation of fourth aspect.

With reference to the 6th kind of possible implementation of the 5th kind of possible implementation or fourth aspect of the 4th kind of possible implementation or fourth aspect of fourth aspect, in the 7th kind of possible realization of fourth aspect In mode, the specified RNTI is the M-RNTI.

With reference to fourth aspect, in the 8th kind of possible implementation of fourth aspect, the specified rope space is public search space.

With reference to the 8th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation of fourth aspect, the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

With reference to the 8th kind of possible implementation of fourth aspect, in the tenth kind of possible implementation of fourth aspect, the sending module is specifically for before the down control channel after sending the scrambling, send and broadcast the message to the user equipment, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and at least two the corresponding MCCH Notifications of Changes of carrier wave transmission subframe it is different, and in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, specifying search for space, the down control channel after the scrambling is sent to the user equipment.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or fourth aspect of the 8th kind of possible implementation or fourth aspect of the 7th kind of possible implementation or fourth aspect of the 6th kind of possible implementation or fourth aspect of the 5th kind of possible implementation or fourth aspect of the 4th kind of possible implementation or fourth aspect of the third possible implementation or fourth aspect of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in a kind of the tenth possible implementation of fourth aspect, first information domain and the second information field are included in the corresponding Downlink Control Information DCI format of the down control channel, the first information domain is used to indicate the corresponding carrier wave of the down control channel, the second information field user indicates MCCH Notifications of Changes.

With reference to the tenth kind of possible implementation of the 9th kind of possible implementation or fourth aspect of the 8th kind of possible implementation or fourth aspect of the 7th kind of possible implementation or fourth aspect of the 6th kind of possible implementation or fourth aspect of the 5th kind of possible implementation or fourth aspect of the 4th kind of possible implementation or fourth aspect of the third possible implementation or fourth aspect of second possible implementation or fourth aspect of the first possible implementation or fourth aspect of fourth aspect or fourth aspect, in the 12nd kind of possible implementation of fourth aspect, MCCH Notification of Changes instructions field is included in the corresponding DCI format of the down control channel, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit Comprising the corresponding MCCH of M carrier wave, the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

With reference to the 12nd kind of possible implementation of fourth aspect, in the 13rd kind of possible implementation of fourth aspect, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.

5th aspect provides a kind of user equipment, including：

Decoder, for specifying search for space based on specified Downlink Control Information DCI format, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

Memory, for storage program；

Processor, for performing described program, for：The MCCH Notifications of Changes carried based on the down control channel, know that MCCH is changed.

6th aspect provides a kind of network side equipment, including：

Memory, for storage program；

Processor, for performing described program, for：Down control channel is scrambled using specified Radio Network Temporary Identifier RNTI, the down control channel carries MCCH Notifications of Changes；

Communication interface, for specifying search for space, the down control channel after the scrambling is sent to user equipment.

Channel provided in an embodiment of the present invention changes acquisition method, Notification Method and equipment, UE is based on specifying descending control information format specifying search for space, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier to be scrambled, the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH Notifications of Changes of secondary carrier can be known, and then realize the notice of MCCH corresponding to secondary carrier change, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, exist On the premise of not paying creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 changes the flow chart of acquisition method for a kind of channel provided in an embodiment of the present invention；

Fig. 2 is a kind of new flow chart for arriving alteration notification method provided in an embodiment of the present invention；

Fig. 3 is a kind of UE structural representation provided in an embodiment of the present invention；

Fig. 4 is another UE provided in an embodiment of the present invention structural representation；

Fig. 5 is another UE provided in an embodiment of the present invention structural representation；

Fig. 6 is a kind of structural representation of network side equipment provided in an embodiment of the present invention；

Fig. 7 is the structural representation of another network side equipment provided in an embodiment of the present invention；

Fig. 8 is the structural representation of another network side equipment provided in an embodiment of the present invention.Embodiment is to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

Fig. 1 changes the flow chart of acquisition method for a kind of channel provided in an embodiment of the present invention.As shown in figure 1, the method for the present embodiment includes：

Step 101, UE are based on specifying Downlink Control Information（Downlink Control lnformation, referred to as DCI) form specifying search for space, to using specifying Radio Network Temporary Identifier（Radio Network Temporary Identifier, referred to as RNTI) down control channel that is scrambled enters row decoding；Wherein, the down control channel carrying MCCH Notifications of Changes.

The MCCH Notifications of Changes that step 102, UE are carried based on the down control channel, know that MCCH is changed.

The present embodiment is primarily adapted for use in carrier aggregation scene, and carrier aggregation is also referred to as spectrum aggregating（ Spectrum

) or bandwidth expansion (Bandwidth Extension), Aggregation two or more member carriers are primarily referred to as（Component Carrier) frequency language be grouped together in together to obtain broader transmission bandwidth.In carrier aggregation scene, a member carrier in two or more member carriers of polymerization is configured to main carrier, other member carriers are used as secondary carrier, that is to say, that UE has main carrier and at least one secondary carrier.It should be noted that not limiting the application scenarios of the embodiment of the present invention. In embodiments of the present invention, the down control channel includes PDCCH, or enhanced PDCCH (Enhanced PDCCH, referred to as E-PDCCH).

Optionally, the MCCH Notifications of Changes that UE is carried based on down control channel, know that MCCH becomes and further include：The MCCH Notifications of Changes that UE is carried based on down control channel, know the corresponding MCCH changes of main carrier；Or, the MCCH Notifications of Changes that UE is carried based on down control channel know the corresponding MCCH changes of secondary carrier.The corresponding MCCH changes of the secondary carrier, refer to that physics multicast channel (Physical Multicast Channel, referred to as PMCH) corresponding MCCH in secondary carrier is changed.

In an optional embodiment, the space that specifies search for can be proprietary search space (UE-specific Search Space, referred to as USS).Further alternative, the proprietary search space can be the corresponding proprietary search space of secondary carrier.Based on this, the MCCH Notifications of Changes that UE can be carried based on down control channel know the corresponding MCCH changes of secondary carrier.

It will be appreciated by those skilled in the art that RNTI has a variety of, such as Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell RNTI, referred to as C-RNTI), multi-medium multi-packet broadcasting service Radio Network Temporary Identifier（MCCH RNTI, referred to as M-RNTI) etc..In different application scenarios, in the embodiment of the present invention can be different for the specified RNTI that is scrambled to down control channel.For example, in an optional embodiment, if the corresponding proprietary search space of secondary carrier is in the space that specifies search for, the specified RNTI can be C-RNTI.

In another optional embodiment, UE is based on specifying DCI format specifying search for space, to being entered using the down control channel for specifying RNTI to be scrambled before row decoding, including：The step of space being specified search for described in UE determinations.Optionally, UE can specify search for space according to being determined M-RNTI, or, UE can specify search for space according to being determined M-RNTI and carrier index.Wherein, the carrier index can refer to system-level carrier index, or the carrier index can be the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.

Further, in order to realize the notice of MCCH corresponding to secondary carrier change, UE is according to M-RNTI, or according to M-RNTI and carrier index, specify search for being spatially located in secondary carrier described in identified, the secondary carrier is the corresponding PMCH of carrying MCCH carrier wave.Based on this, the MCCH Notifications of Changes that UE can be carried based on down control channel know the corresponding MCCH changes of secondary carrier.It should be noted that when UE specifies search for space according to being determined M-RNTI and carrier index, what this was specified Search space can also be located on main carrier.When UE specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, the search space specified is located in secondary carrier, i.e., positioned at 7 | in the secondary carrier for carrying the corresponding PMCH of the MCCH.

Further, described can be that UE is used to determining described to specify search for the M-RNTI that space is used for the specified RNTI that is scrambled to down control channel.

In another optional embodiment, the space that specifies search for can also be public search space (Common Search Space, referred to as CSS).In LTE system, generally only main carrier just has public search space, so in this embodiment, the space that specifies search for is primarily referred to as the corresponding public search space of main carrier.Under preferably, sent due to carrying the down control channels of the corresponding MCCH Notifications of Changes of each carrier wave in the public search space, so needing to distinguish the corresponding MCCH Notifications of Changes of different carrier waves by other information.

It is a kind of be used for distinguishing the corresponding MCCH Notifications of Changes of different carrier waves optional mode be：Different carrier waves is distinguished by the specified RNTI, for example, can be by being respectively configured the proprietary M-RNTI of carrier wave for different carrier waves, the proprietary M-RNTI of carrier wave can be with one carrier wave of unique mark, i.e., the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different；Based on this, the specified RNTI is the proprietary M-RNTI of carrier wave.

It is another be used for distinguishing the corresponding MCCH Notifications of Changes of different carrier waves optional mode be：Distinguished by the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, the transmission subframe of the corresponding MCCH Notifications of Changes of different carrier waves is different.For example, network side equipment can be broadcast the message by being sent to UE, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different.Based on this, UE is based on specifying DCI format specifying search for space, to entering row decoding using the down control channel for specifying RNTI to be scrambled, including：The information of the transmission subframe for the corresponding MCCH Notifications of Changes of each carrier wave of the instruction that UE is carried according to broadcast message, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to using specifying the down control channels that are scrambled of RNTI to enter row decoding, such UE can distinguish the corresponding MCCH Notifications of Changes of different carrier waves by different transmission subframes.

Another optional mode for being used to distinguish the corresponding MCCH Notifications of Changes of different carrier waves is：Distinguished by specifying information field in the specified DCI format.By specifying a kind of optional embodiment of the corresponding MCCH Notifications of Changes of the different carrier waves of information field differentiation to include in the specified DCI format：First information domain and the second information field are included in the specified DCI format, first information domain is used for indicating downlink and controls letter The corresponding carrier wave in road, the second information field is used to indicate MCCH Notifications of Changes；So UE can know which carrier wave the MCCH Notifications of Changes that the down control channel is carried correspond to from the specified DCI format.Based on this, the MCCH Notifications of Changes that UE is carried based on down control channel know that MCCH is changed, including：The value in first information domain knows that the value of the second information field in the corresponding carrier wave of down control channel, and the DCI format carried based on down control channel knows the corresponding MCCH changes of the carrier wave in the DCI format that UE is carried based on down control channel.Optionally, the specified DCI format can be form 1C, and first information domain is carrier wave instructions field（Carrier Indicator Field, referred to as CIF).

By specifying another optional embodiment of the corresponding MCCH Notifications of Changes of the different carrier waves of information field differentiation to include in the specified DCI format：MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

Optionally, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.Based on this, UE can be 1 position of the bit in N bit by value, determine which corresponding MCCH of which carrier wave is changed.In addition to which, the mapping relations between each bit MCCH corresponding with each carrier wave can also be pre-set, UE can determine which corresponding MCCH of which carrier wave is changed based on the bit that value in the mapping relations and MCCH Notification of Changes instructions field is 1.

Illustrate herein, UE can obtain the MCCH after the corresponding renewals of PMCH on the carrier wave after the corresponding MCCH changes of carrier wave are known in next modification cycle.

In the present embodiment, UE is based on specifying DCI format specifying search for space, to entering row decoding using the down control channel for specifying RNTI to be scrambled, the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH Notifications of Changes of secondary carrier can be known, and then realize the notice of MCCH corresponding to secondary carrier change, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource. Below will be by taking some optional embodiments as an example, technical solution of the present invention is described in further details, in following optional embodiment, exemplified by knowing the corresponding MCCH changes of the first secondary carrier, but be not limited to know the corresponding MCCH changes of the first secondary carrier, and the down control channel with PDCCH or

E-PDCCH is represented.Herein, the first secondary carrier can refer to any one in UE secondary carrier.

In an optional embodiment, the corresponding proprietary search space of the first secondary carrier is in the above-mentioned space that specifies search for, i.e. the corresponding down control channel of the first secondary carrier is detected inside the proprietary search space；Above-mentioned specified RNTI can be C-RNTI.

Based on this, UE knows that the process of MCCH changes includes：UE is based on specifying DCI format in the corresponding proprietary search space of the first secondary carrier, to carrying out CRC using C-RNTI（Cyclic Redundancy Check, referred to as CRC) scrambling PDCCH or E-PDCCH enter row decoding；

The MCCH Notifications of Changes that UE is carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of first secondary carrier.

For UE, the C-RNTI that the proprietary search space of the first secondary carrier and scrambling are used is to arrange in advance with network side equipment, and pre-configured.Specifically, UE will in specific sub-frame in the corresponding proprietary search space of the first secondary carrier, detect using C-RNTI scramble and DCI format be form 1C PDCCH or E-PDCCH, according in DCI format 1C be used for indicate MCCH Notifications of Changes

8 bit informations, know that MCCH is changed, and the MCCH is that the PMCH in the first secondary carrier is corresponding

MCCH.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, the corresponding payload of the corresponding DCI format of down control channel（Ayload size) it can be pulled together with DCI format 0 or DCI format 4, specifically pulling together mode can be by adding 0 bit.For example, in the corresponding DCI format of down control channel in addition to the instruction that 8-bit is used for MCCH Notifications of Changes, by 0 bit of addition so that the corresponding payloads of the DCI are as the payload of DCI format 0 or DCI format 4.Wherein, DCI format 0 or the corresponding identical secondary carrier of the DCI format corresponding with the down control channel of DCI format 4.Based on this, due to the payload of the corresponding DCI format of the down control channel being pulled together with DCI format 0 or DCI format 4, it is possible to do not increase UE corresponding PDCCH or E-PDCCH in first secondary carrier blind check number of times.

Illustrate herein, if pull together the corresponding DCI format of down control channel with DCI format 0 or DCI format 4s, and the number of 0 bit that added when pulling together etc. can be pre-configured on UE and network side equipment. In another optional embodiment, the corresponding proprietary search space of the first secondary carrier is in the above-mentioned space that specifies search for, i.e. the down control channel of the corresponding carrying MCCH Notifications of Changes of the first secondary carrier is detected inside the proprietary search space；Above-mentioned specified RNTI can be M-RNTI.

Based on this, UE knows that the process of MCCH changes includes：UE is based on specifying DCI format in the corresponding proprietary search space of the first secondary carrier, and row decoding is entered to the PDCCH or E-PDCCH that CRC scramblings are carried out using M-RNTI；The MCCH Notifications of Changes that UE is carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

For UE, the M-RNTI that the proprietary search space of the first secondary carrier and scrambling are used is to arrange in advance with network side equipment, and pre-configured.Specifically, UE will be in specific sub-frame in the corresponding proprietary search space of the first secondary carrier, detection is scrambled using M-RNTI and DCI format is form 1C PDCCH or E-PDCCH, according to 8 bit informations for being used to indicate MCCH Notifications of Changes in DCI format 1C, know that MCCH is changed, the MCCH is the corresponding MCCH of PMCH in first secondary carrier.

In another optional embodiment, above-mentioned specified RNTI can be corresponding for the first secondary carrier

M-RNTI;It is above-mentioned specify search for space be according to M-RNTI, or according to M-RNTI and the carrier index of the first secondary carrier, it is determined that search space.

Based on this, UE knows that the process of MCCH changes includes：UE is first according to the corresponding M-RNTI of the first secondary carrier, or M-RNTI and the first secondary carrier carrier index, it is determined that described specify search for space；Afterwards, space is specified search for described based on specified DCI format, row decoding is entered to the PDCCH or E-PDCCH that CRC scramblings are carried out using M-RNTI；The MCCH Notifications of Changes that UE is carried based on PDCCH or E-PDCCH, know that MCCH is changed.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In the present embodiment, UE can be specifically to specify search for space described in the first secondary carrier is determined according to the corresponding M-RNTI of the first secondary carrier and the carrier index of the first secondary carrier.Or, UE can also be to specify search for space described in the first secondary carrier is determined according to the corresponding M-RNTI of the first secondary carrier.Wherein, carrier index can refer to system-level carrier index, or, the carrier index can refer to the proprietary carrier index of cell, and the proprietary carrier index of cell is to all user's all sames.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.

It is determined that it is described specify search for space after, UE specifically specifies search for sky in characteristic subframe at this Between, detection is scrambled using M-RNTI and DCI format is form 1C PDCCH or E-PDCCH, according to 8 bit informations for being used to indicate MCCH Notifications of Changes in DCI format 1C, know that MCCH is changed, the MCCH is the corresponding MCCH of PMCH in the first secondary carrier.

In another optional embodiment, the above-mentioned space that specifies search for can be public search space, i.e. the MCCH Notifications of Changes of the first secondary carrier are sent in public search space, for CA user, and generally only main carrier has public search space；Above-mentioned specified RNTI is the proprietary M-RNTI of carrier wave, and the proprietary M-RNTI of carrier wave of the first secondary carrier is primarily referred to as in the present embodiment, wherein the proprietary M-RNTI of carrier wave of different carrier waves is different.

Based on this, UE knows that the process of MCCH changes includes：UE is based on specifying DCI format in public search space, and row decoding is entered to the PDCCH or E-PDCCH for carrying out CRC scramblings of the proprietary RNTI of carrier wave using the first secondary carrier；The MCCH Notifications of Changes that UE is carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

Because different carrier waves corresponding PDCCH or E-PDCCH is scrambled using the proprietary RNTI of the corresponding carrier wave of the carrier wave, so that the MCCH Notifications of Changes of all carrier waves can be sent in the corresponding public search space of main carrier, i.e. the corresponding MCCH Notifications of Changes of secondary carrier can also be sent in the corresponding public search space of main carrier, so as to solve the Receiver Problem of MCCH Notifications of Changes in secondary carrier.

For UE, the proprietary RNTI of the corresponding carrier wave of the first secondary carrier that the public search space of main carrier and scrambling are used is to arrange in advance with network side equipment, and pre-configured.Specifically, UE will be in specific sub-frame in the corresponding public search space of main carrier, PDCCH or E-PDCCH that carrier wave proprietary RNTI scrambling and DCI format of the detection using the first secondary carrier are form 1C, according to 8 bit informations for being used to indicate MCCH Notifications of Changes in DCI forms 1C, know that MCCH is changed, the MCCH is the corresponding MCCH of PMCH in the first secondary carrier.

In another optional embodiment, public search space is in the above-mentioned space that specifies search for；Above-mentioned specified RNTI is M-RNTI;In this embodiment, the corresponding MCCH Notifications of Changes of different carrier waves are distinguished by specifying information field in the specified DCI format.First information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier waves of PDCCH or E-PDCCH；Second information field is used to indicate MCCH Notifications of Changes.

Based on this, knowing the process of MCCH changes includes：UE is based on specifying DCI format in public search space, and row decoding is entered to the PDCCH or E-PDCCH that CRC scramblings are carried out using M-RNTI； The value in first information domain in the DCI format that UE is carried based on PDCCH or E-PDCCH, know that the value of the second information field in corresponding first secondary carriers of PDCCH or E-PDCCH, and the DCI format carried based on PDCCH or E-PDCCH knows the corresponding MCCH changes of first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, M-RNTI be used for carry MCCH Notifications of Changes PDCCH or

EPDCCH carries out CRC scramblings, and the corresponding M-RNTI of all secondary carriers can be identical, can also differ.

In this embodiment, the first information domain included in the DCI format can be CIF, and the CIF can be made up of 3-bit, be mainly used in carrying the corresponding carrier waves of PDCCH or E-PDCCH.For example when the DCI format is form 1C, following several domains can be included in form 1C：8-bit the second information field, for carrying MCCH Notifications of Changes, 3-bit CIF, and reserved bit domain.Wherein, reserved bit domain, which whether there is, depends on whether DCI format 1C needs to add 0 bit to be used for payload when single PDSCH is dispatched with DCI format 1C（Payload size) pulled together.Described pull together refers to DCI format 1C corresponding payloads in MCCH Notifications of Changes corresponding for indication carrier wave, identical with the payload when being dispatched for single PDSCH.Pull together if desired, then DCI forms include reserved bit domain, if need not pull together, DCI format can not include reserved bit domain.

It should be noted that the first information domain in the embodiment can also reuse the reserved bit domain in DCI format 1C.

In another optional embodiment, above-mentioned specified rope space can be public search space；Above-mentioned specified RNTI can be M-RNTI;In this embodiment, the corresponding MCCH Notifications of Changes of different carrier waves are distinguished by the transmission subframe of MCCH Notifications of Changes.

Based on this, UE knows that the process of MCCH changes includes：UE receives the broadcast message of network side equipment, and the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave is determined according to the broadcast message；Broadcast message in the step can be SIB13.Specifically, network side equipment notifies the information of the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave by SIB13 to UE, the transmission subframe of the corresponding MCCH Notifications of Changes of different carrier waves is inconsistent.Afterwards, UE, based on specified DCI format, in public search space, row decoding is entered to the PDCCH or E-PDCCH that CRC scramblings are carried out using M-RNTI in the transmission subframe of the corresponding MCCH Notifications of Changes of identified first secondary carrier；The MCCH Notifications of Changes that UE is carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH. In this embodiment, M-RNTI is used to carry out CRC scramblings to the PDCCH or EPDCCH that carry MCCH Notifications of Changes, and the corresponding M-RNTI of all carrier waves can be identical, can also differ.

In this embodiment, UE determines corresponding first secondary carrier of the MCCH Notifications of Changes according to the subframe for detecting MCCH Notifications of Changes.

In another optional embodiment, the above-mentioned space that specifies search for can be public search space；Above-mentioned specified RNTI can be M-RNTI;In this embodiment, the corresponding MCCH Notifications of Changes of different carrier waves are distinguished by specifying the specify information domain in DCI format.

Based on this, UE knows that the process of MCCH changes includes：UE is based on specifying DCI format in public search space, and row decoding is entered to the PDCCH or E-PDCCH that CRC scramblings are carried out using M-RNTI；The value of MCCH Notification of Changes instructions field, knows the corresponding MCCH changes of the first secondary carrier in the DCI format that UE is carried according to PDCCH or E-PDCCH.Wherein, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the bit value is 1, the corresponding MCCH of the bit is changed, the corresponding N number of MCCH of N number of bit includes M carrier wave corresponding MCCH, and N is greater than the integer equal to 2, M be also be more than or equal to 2 integer.The embodiment mainly passes through bitmap（Bitmap form), to indicate whether the corresponding MCCH of each carrier wave changes.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, M-RNTI is used to carrying out CRC power mouthful to the PDCCH or EPDCCH that carry MCCH Notifications of Changes disturbing, and the corresponding M-RNTI of all carrier waves can be identical, can also differ.

Optionally, the corresponding MCCH of M carrier wave can be with Unified number, for example by order number consecutivelies of the corresponding MCCH of M carrier wave according to carrier index increasing or decreasing, the corresponding MCCH of carrier wave that for example can be first low to carrier index is numbered, the carrier wave corresponding MCCH high to carrier index is numbered again, corresponding from low level to the high-order MCCH successively with numbering from small to large in N number of bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.Based on this, UE can be 1 position of the bit in N number of bit by value, determine which corresponding MCCH of which carrier wave is changed.

In addition to aforesaid way, it can also previously generate between N number of bit MCCH corresponding with carrier wave Mapping relations, determine the corresponding carrier wave of some bit corresponding MCCH and the MCCH according to the mapping relations.

The respective embodiments described above distinguish the corresponding MCCH Notifications of Changes of different carrier waves by various modes, allow to MCCH Notifications of Changes corresponding to secondary carrier to be identified, realize the notice of the corresponding MCCH changes of secondary carrier, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.

Fig. 2 is a kind of new flow chart for arriving alteration notification method provided in an embodiment of the present invention.As shown in Fig. 2 the method for the present embodiment includes：

Step 201, network side equipment are scrambled using specified RNTI to down control channel, the down control channel carrying MCCH Notifications of Changes.

Step 202, network side equipment are specifying search for space, and the down control channel after the scrambling is sent to UE.

The present embodiment is equally primarily adapted for use in carrier aggregation scene, is the description carried out from the description of network side equipment.It should be noted that not limiting the application scenarios of the embodiment of the present invention.The network side equipment of the present embodiment can be base station, but not limited to this.

In the present embodiment, the down control channel includes PDCCH, or E-PDCCH.

Optionally, the MCCH Notifications of Changes of the down control channel carrying can be the corresponding MCCH Notifications of Changes of main carrier or the corresponding MCCH Notifications of Changes of secondary carrier.The corresponding MCCH Notifications of Changes of the secondary carrier, are mainly used in indicating that the corresponding MCCH of PMCH in secondary carrier are changed.

In an optional embodiment, the space that specifies search for can be proprietary search space.Further alternative, the proprietary search space can be the UE corresponding proprietary search space of secondary carrier.Based on this, the MCCH Notifications of Changes of down control channel carrying, for indicating that the corresponding MCCH of the secondary carrier is changed.

It will be appreciated by those skilled in the art that RNTI has a variety of, such as C-RNTI, M-RNTI.In different application scenarios, in the embodiment of the present invention can be different for the specified RNTI that is scrambled to down control channel.For example, in an optional embodiment, if described specify search for the corresponding proprietary search space of secondary carrier that space is UE, the specified RNTI can be C-RNTI.

In another optional embodiment, network side equipment is specifying search for space, to before the down control channel after the UE transmissions scrambling, including：The step in space is specified search for described in network side equipment determination Suddenly.Optionally, network side equipment can specify search for space according to being determined UE M-RNTI, or, network side equipment can specify search for space according to being determined UE M-RNTI and carrier index.Wherein, the carrier index can refer to system-level carrier index, or, the carrier index can be the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to the user.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.

Further, in order to realize the notice of MCCH changes corresponding to secondary carrier, network side equipment is according to UE M-RNTI, or according to UE M-RNTI and carrier index, specify search for being spatially located in the secondary carrier of the UE described in identified, the secondary carrier is the carrier wave for carrying the corresponding PMCH of the MCCH.Based on this, the MCCH Notifications of Changes of the down control channel carrying are mainly used in indicating the corresponding MCCH changes of the secondary carrier.It should be noted that when network side equipment specifies search for space according to being determined M-RNTI and carrier index, the search space specified can also be located on main carrier.When network side equipment specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, the search space specified is located in secondary carrier, i.e., in the secondary carrier for carrying the corresponding PMCH of the MCCH.

Further, described can be that network side equipment is used to determining described to specify search for the M-RNTI that space is used for the specified RNTI that is scrambled to down control channel.

In another optional embodiment, the space that specifies search for can also be public search space.In LTE system, generally only main carrier just has public search space, so in this embodiment, the space that specifies search for is primarily referred to as the corresponding public search space of main carrier.Under preferably, sent due to carrying the down control channels of the corresponding MCCH Notifications of Changes of each carrier wave in the public search space, so needing to distinguish the corresponding MCCH Notifications of Changes of different carrier waves by other information.

It is another be used for distinguishing the corresponding MCCH Notifications of Changes of different carrier waves optional mode be：Distinguished by the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, the transmission subframe of the corresponding MCCH Notifications of Changes of different carrier waves is different.For example, network side equipment can specify search for space, sent to UE before the down control channel after the scrambling, first send and broadcast the message to UE, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and at least two The transmission subframe of the corresponding MCCH Notifications of Changes of carrier wave is different；Then, network side equipment is specifying search for space in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, and the down control channel after the scrambling is sent to UE.Description for UE sides can be found in above-described embodiment.Present embodiment distinguishes the corresponding MCCH Notifications of Changes of different carrier waves by different transmission subframes.

Another optional mode for being used to distinguish the corresponding MCCH Notifications of Changes of different carrier waves is：Distinguished by specifying information field in the specified DCI format.By specifying a kind of optional embodiment of the corresponding MCCH Notifications of Changes of the different carrier waves of information field differentiation to include in the specified DCI format：First information domain and the second information field are included in the specified DCI format, first information domain is used for the corresponding carrier wave of indicating downlink control channel, and the second information field is used to indicate MCCH Notifications of Changes；So UE can know which carrier wave the contained MCCH Notifications of Changes of the down control channel correspond to from the specified DCI format.Specifically, network side equipment can be by setting the value in first information domain in the DCI format carried based on down control channel come the corresponding carrier wave of indicating downlink control channel, and indicates that the corresponding MCCH of the carrier wave is changed by setting the value of the second information field in the DCI format carried based on down control channel.Optionally, the specified DCI format can be form 1C, and first information domain is CIF.

Optionally, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.Based on this, network side equipment can be 1 by setting the value of some in the MCCH Notifications of Changes domain or some bits, to indicate that some corresponding MCCH of corresponding carriers is changed.In addition to which, the mapping relations between each bit MCCH corresponding with each carrier wave can also be pre-set, network side equipment can be based on the mapping relations, the bit that some in setting MCCH Notification of Changes instructions field or the value of some bits are 1, to indicate that some corresponding MCCH of corresponding carriers is changed. In the present embodiment, network side equipment is scrambled using specified RNTI to down control channel, then space is being specified search for, the down control channel after scrambling is sent to UE, UE is allowd to enter row decoding to the down control channel after scrambling based on specified DCI format, and then the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH of secondary carrier can be notified to change to UE, realize the notice of MCCH corresponding to secondary carrier change, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.

Below will be by taking some optional embodiments as an example, technical solution of the present invention is described in further details, in following optional embodiment, exemplified by notifying the corresponding MCCH of the first secondary carrier to change, but it is not limited to know the corresponding MCCH changes of the first secondary carrier, and the down control channel is represented with PDCCH or E-PDCCH.Herein, the first secondary carrier can refer to any one in UE secondary carrier.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using the C-RNTI of the first secondary carrier, the PDCCH or

E-PDCCH carries MCCH Notifications of Changes；Network side equipment is in the corresponding proprietary search space of the first secondary carrier, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can by based on specified DCI format in the corresponding proprietary search space of the first secondary carrier, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, network side equipment is needed when changing MCCH in next modification cycle, within the current modification cycle, and MCCH Notifications of Changes are sent to the corresponding PMCH of all reception MCCH UE by PDCCH or E-PDCCH.For network side equipment, the C-RNTI that the proprietary search space of the first secondary carrier and scrambling are used is to arrange in advance with UE, and pre-configured.

In this embodiment, the corresponding proprietary search space of the first secondary carrier refers to the corresponding proprietary search space of carrier wave for carrying the corresponding PMCH business of the MCCH, and carrier wave here should to all receptions

It is the first secondary carrier for PMCH UE.

In this embodiment, the corresponding payload of the corresponding DCI format of down control channel（ ayload Size) it can be pulled together with DCI format 0 or DCI format 4, specifically pulling together mode can be by adding 0 bit.For example, in the corresponding DCI format of down control channel in addition to the configured information that 8-bit is used for MCCH Notifications of Changes, by 0 bit of addition so that the corresponding payloads of the DCI are as the payload of DCI format 0 or DCI format 4.Wherein, DCI format 0 or the corresponding identical secondary carrier of the DCI format corresponding with the down control channel of DCI format 4.Based on this, due to the payload of the corresponding DCI format of the down control channel being pulled together with DCI format 0 or DCI format 4, it is possible to do not increase the UE corresponding PDCCH or E-PDCCH in the first secondary carrier blind check number of times.

Illustrate herein, if pull together the corresponding DCI format of down control channel with DCI format 0 or DCI format 4s, and the number of 0 bit that added when pulling together etc. can be pre-configured on UE and network side equipment.

In another optional embodiment, the corresponding proprietary search space of the first secondary carrier is in the above-mentioned space that specifies search for, i.e. the corresponding down control channel of the first secondary carrier is detected inside the proprietary search space；Above-mentioned specified RNTI can be M-RNTI.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using the M-RNTI of the first secondary carrier, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Network side equipment is in the corresponding proprietary search space of the first secondary carrier, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can by based on specified DCI format in the corresponding proprietary search space of the first secondary carrier, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the DCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, network side equipment is needed when changing MCCH in next modification cycle, within the current modification cycle, and MCCH Notifications of Changes are sent to the corresponding PMCH of all reception MCCH UE by PDCCH or E-PDCCH.For network side equipment, the M-RNTI that the proprietary search space of the first secondary carrier and scrambling are used is to arrange in advance with UE, and pre-configured.

In this embodiment, the corresponding proprietary search space of the first secondary carrier refers to the corresponding proprietary search space of carrier wave for carrying the corresponding PMCH business of the MCCH, and carrier wave here is the first secondary carrier for all reception PMCH UE.

In this embodiment, M-RNTI can be shared by one group of UE, and this group of UE receives PMCH in the first secondary carrier.If the corresponding proprietary search space of this group of UE the first secondary carrier has overlapping, Then lap of the network side equipment preferably in this group of UE corresponding proprietary search space of the first secondary carrier, PDCCH or E-PDCCH is sent to this group of UE, so network side equipment can only send a PDCCH or E-PDCCH, so as to save PDCCH or E-PDCCH resources.

In another optional embodiment, above-mentioned specified RNTI can be the corresponding M-RNTI of the first secondary carrier;It is above-mentioned specify search for space be according to M-RNTI, or according to M-RNTI and the carrier index of the first secondary carrier, it is determined that search space.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using the M-RNTI of the first secondary carrier, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Network side equipment is based on the corresponding M-RNTI of the first secondary carrier, or according to the corresponding M-RNTI of the first secondary carrier and the carrier index of the first secondary carrier, it is determined that described specify search for space；Afterwards, network side equipment specifies search for space described, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can specify search for space by based on specified DCI format what is determined by M-RNTI, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

Illustrate herein, network side equipment carries out the process of CRC scramblings using the M-RNTI of the first secondary carrier to PDCCH or E-PDCCH, the corresponding M-RNTI of the first secondary carrier is based on network side equipment, or the carrier index of M-RNTI and the first secondary carrier, it is determined that the sequencing between the process for specifying search for space is not limited.

In this embodiment, network side equipment is needed when changing MCCH in next modification cycle, within the current modification cycle, and MCCH Notifications of Changes are sent to the corresponding PMCH of all reception MCCH UE by PDCCH or E-PDCCH.For network side equipment, it is all to arrange in advance with UE to scramble the M-RNTI used, and pre-configured.

In the present embodiment, network side equipment can be to specify search for space described in the first secondary carrier is determined according to the corresponding M-RNTI of the first secondary carrier and the carrier index of the-secondary carrier.Or, network side equipment can also be to specify search for space described in the first secondary carrier is determined according to the corresponding M-RNTI of the first secondary carrier.Wherein, carrier index can refer to system-level carrier index, or, the carrier index can refer to the proprietary carrier index of cell, and the proprietary carrier index of cell is to all user's all sames.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration. In this embodiment, if all UE that PMCH is received in the first secondary carrier obtain MCCH Notifications of Changes in the space that specifies search for, then network side equipment can only send a MCCH Notification of Changes for multiple UE, so as to save PDCCH or E-PDCCH resources.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using the proprietary RNTI of carrier wave of the first secondary carrier, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Network side equipment is in public search space, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can by based on specified DCI format in public search space, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, network side equipment is needed when changing MCCH in next modification cycle, within the current modification cycle, and MCCH Notifications of Changes are sent to the corresponding PMCH of all reception MCCH UE by PDCCH or E-PDCCH.For network side equipment, the proprietary RNTI of carrier wave for the first secondary carrier that public search space and scrambling are used is to arrange in advance with UE, and pre-configured.

In this embodiment, network side equipment is needed in the corresponding public search space of main carrier, the proprietary RNTI of carrier wave of the first secondary carrier of all configurations is scrambled, the operation can be carried out in specific subframe.

In this embodiment, MCCH Notifications of Changes corresponding for the first secondary carrier, network side equipment needs to send on all UE main carrier for receiving the corresponding PMCH of the MCCH, need MCCH Notifications of Changes, by the corresponding PMCH of each reception MCCH UE main carrier, each UE is sent respectively to.

Illustrate herein, the non-MBSFN sub-frame of main carrier can also send MCCH Notifications of Changes.

In another optional embodiment, public search space is in the above-mentioned space that specifies search for；Above-mentioned specified RNTI is M-RNTI;In this embodiment, the corresponding MCCH Notifications of Changes of different carrier waves are institutes State and specify information field in specified DCI format to distinguish.First information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier waves of PDCCH or E-PDCCH；Second information field is used to indicate MCCH Notifications of Changes.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using M-RNTI, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Network side equipment is in public search space, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can by based on specified DCI format in public search space, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the corresponding PMCH of 7 loads MCCH secondary carrier.

In this embodiment, network side equipment by set based on PDCCH or E-PDCCH carrying DCI format in first information domain value, to indicate corresponding first secondary carriers of PDCCH or E-PDCCH, and by setting the value of the second information field in the DCI format based on PDCCH or E-PDCCH carryings, to indicate MCCH Notifications of Changes.

Optionally, first information domain can be CIF.For example, when the DCI format is form 1C, following several domains can be included in form 1C：8-bit the second information field, for indicating MCCH Notifications of Changes, 3-bit CIF, and reserved bit domain.Wherein, reserved bit domain, which whether there is, depends on whether DCI format 1C needs to add 0 bit to be used for payload when single PDSCH is dispatched with DCI format 1C（Payload size) pulled together.Described pull together refers to DCI format 1C corresponding payloads in MCCH Notifications of Changes corresponding for indication carrier wave, identical with the payload when being dispatched for single PDSCH.Pull together if desired, then DCI format includes reserved bit domain, if need not pull together, DCI format can not include reserved bit domain.

In this embodiment, M-RNTI is used to carry out CRC scramblings to the PDCCH or EPDCCH that carry MCCH Notifications of Changes, and the corresponding M-RNTI of all carrier waves can be identical, can also differ.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment sends to UE and broadcast the message, and the broadcast message carries the transmission for indicating the corresponding MCCH Notifications of Changes of each carrier wave The information of subframe, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different.Afterwards, network side equipment carries out CRC scramblings to PDCCH or E-PDCCH using M-RNTI, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Then, network side equipment is in the transmission subframe of the corresponding MCCH Notifications of Changes of the first secondary carrier, in public search space, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can be in the transmission subframe of the corresponding MCCH Notifications of Changes of the first secondary carrier, in public search space, row decoding is entered to the PDCCH or E-PDCCH after scrambling, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.

In this embodiment, the broadcast message can be SIB13.Network side equipment can specifically notify the information of the transmission subframe of the corresponding MCCH Notifications of Changes of each secondary carrier by SIB13 to UE.

In another optional embodiment, the above-mentioned space that specifies search for can be public search space；Above-mentioned specified RNTI can be M-RNTI;In this embodiment, the corresponding MCCH Notifications of Changes of different carrier waves are distinguished by specifying information field in the specified DCI format.

Based on this, network side equipment notifies the process of MCCH changes to include：Network side equipment utilizes the corresponding M-RNTI of the first secondary carrier, and CRC scramblings are carried out to PDCCH or E-PDCCH, and the PDCCH or E-PDCCH carry MCCH Notifications of Changes；Afterwards, network side equipment is in public search space, PDCCH or E-PDCCH after scrambling is sent to UE, so UE can be by based on specified DCI forms, in public search space, enter row decoding, and then the MCCH Notifications of Changes carried based on PDCCH or E-PDCCH to the PDCCH or E-PDCCH after scrambling using M-RNTI, know the corresponding MCCH changes of the first secondary carrier.It should be noted that the first secondary carrier can refer to the secondary carrier for carrying the corresponding PMCH of the MCCH.In this embodiment, MCCH Notification of Changes instructions field is included in the DCI forms of PDCCH or E-PDCCH carryings.Wherein, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the bit value is 1, the corresponding MCCH of the bit is changed, the corresponding N number of MCCH of N number of bit includes M carrier wave corresponding MCCH, and N is greater than the integer equal to 2, M be also be more than or equal to 2 integer.The embodiment mainly passes through bitmap（Bitmap form), to indicate whether the corresponding MCCH of each carrier wave sends out Change more.

Optionally, the corresponding MCCH of M carrier wave can be with Unified number, for example by order number consecutivelies of the corresponding MCCH of M carrier wave according to carrier index increasing or decreasing, the corresponding MCCH of carrier wave that for example can be first low to carrier index is numbered, the carrier wave corresponding MCCH high to carrier index is numbered again, corresponding from low level to the high-order MCCH successively with numbering from small to large in N number of bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.Based on this, network side equipment can be 1 position of the bit in N number of bit by value, be changed to identify some corresponding MCCH of some carrier wave.

In addition to aforesaid way, the mapping relations between N number of bit MCCH corresponding with carrier wave can also be previously generated, the corresponding carrier wave of some bit corresponding MCCH and the MCCH is determined according to the mapping relations.

The respective embodiments described above distinguish the corresponding MCCH of different carrier waves by various modes, Notification of Changes, allow to MCCH Notifications of Changes corresponding to secondary carrier to be identified, realize the notice of the corresponding MCCH changes of secondary carrier, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.

Fig. 3 is a kind of UE structural representation provided in an embodiment of the present invention.As shown in figure 3, the UE includes：Decoding module 31 and acquisition module 32.

Decoding module 31, for specifying search for space based on specified DCI format, to entering row decoding using the down control channel for specifying RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes.Optionally, the down control channel includes PDCCH or E-PDCCH.

Acquisition module 32, is connected with decoding module 31, for the MCCH Notifications of Changes carried based on the down control channel, knows that MCCH is changed.

In an optional embodiment, proprietary search space is in the space that specifies search for.Further, the proprietary search space is the corresponding proprietary search space of secondary carrier.Based on this, the specified RNTI is C-RNTI.

In an optional embodiment, as shown in figure 4, the UE also includes：Determining module 33.Determining module 33, space is specified search for for before decoding module 31 enters row decoding, specifying search for space according to being determined M-RNTI, or according to being determined M-RNTI and carrier index.Determining module 33 is connected with decoding module 31, and described space is specified search for for being provided to decoding module 31. Optionally, the carrier index can refer to system-level carrier index, or the carrier index can be the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.Optionally, described to specify search for being spatially located in secondary carrier, the secondary carrier is the corresponding PMCH of carrying MCCH carrier wave.It should be noted that when the determining module 33 in UE specifies search for space according to being determined M-RNTI and carrier index, the search space specified can also be located on main carrier.When the determining module 33 in UE specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, then the search space specified is located in secondary carrier, i.e., in the secondary carrier for carrying the corresponding PMCH of the MCCH.Optionally, the specified RNTI is the M-RNTI.

In an optional embodiment, public search space is in the space that specifies search for.For ease of the corresponding MCCH Notifications of Changes of the different carrier waves of differentiation, the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

In an optional embodiment, public search space is in the space that specifies search for.For ease of the corresponding MCCH Notifications of Changes of the different carrier waves of differentiation, the transmission subframe of the corresponding MCCH Notifications of Changes of the different carrier waves of setting is different.Based on this, as shown in figure 4, the UE also includes：Receiving module 34.

Receiving module 34, it is connected with decoding module 31, for before decoding module 31 enters row decoding, receive the broadcast message that network side equipment is sent, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different.Based on this, decoding module 31 is specifically for the information according to the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

In an optional embodiment, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and second information field is used to indicate MCCH Notifications of Changes.Based on this, acquisition module 32 knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave specifically for the value in first information domain in the DCI format that is carried based on the down control channel.Optionally, the specified DCI format is form 1C, and the first information domain is carrier wave instructions field CIF. In an optional embodiment, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

Optionally, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.

Based on above-mentioned each optional embodiment, acquisition module 32 is particularly used in the MCCH Notifications of Changes carried based on the down control channel, knows the corresponding MCCH changes of secondary carrier.

Each functional module for the UE that the present embodiment is provided can be used for performing the flow in the acquisition method embodiment of channel change shown in Fig. 1, and its concrete operating principle is repeated no more, and refers to the description of embodiment of the method.

The UE that the present embodiment is provided, space is being specified search for based on specified DCI format, is specified to utilizing

The down control channel that RNTI is scrambled enters row decoding, the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH Notifications of Changes of secondary carrier can be known, and then realize the notice of MCCH corresponding to secondary carrier change so that can in secondary carrier developing MBMS service, and then improve the utilization rate of carrier resource.

Fig. 5 is another UE provided in an embodiment of the present invention structural representation.As shown in figure 5, the UE includes：Decoder 51, memory 52 and processor 53.

Decoder 51, for specifying search for space based on specified DCI format, to entering row decoding using the down control channel for specifying RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes.Optionally, the down control channel can include PDCCH or E-PDCCH.

Memory 52, for storage program.Specifically, program can include program code, and described program code includes computer-managed instruction.Memory 52 may include high-speed RAM memory, it is also possible to also including nonvolatile memory（Non- volatile memory), for example, at least one magnetic disk storage.

Processor 53, for performing the program that memory 52 is stored, for：The MCCH Notifications of Changes carried based on the down control channel, know that MCCH is changed. Processor 53 is probably a central processing unit（Central Processing Unit, referred to as CPU), either specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or be arranged to implement one or more integrated circuits of the embodiment of the present invention.

Further, as shown in figure 5, the UE also includes：Communication interface 54.Communication interface 54 is mainly responsible for the communication between the UE and other equipment, for example, be responsible for the communication between the UE and network side equipment.Specifically, the down control channel after RNTI scramblings is specified in the utilization that communication interface 54 can receive network side equipment transmission.

In an optional embodiment, processor 53 is additionally operable to before decoder 51 enters row decoding, space is specified search for according to being determined M-RNTI, or specify search for space according to being determined M-RNTI and carrier index.Processor 53 provides to decoder 51 and described specifies search for space.

Optionally, the carrier index can refer to system-level carrier index, or the carrier index can be the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.Optionally, described to specify search for being spatially located in secondary carrier, the secondary carrier is the corresponding PMCH of carrying MCCH carrier wave.It should be noted that when the processor 53 in UE specifies search for space according to being determined M-RNTI and carrier index, the search space specified can also be located on main carrier.When the processor 53 in UE specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, then the search space specified is located in secondary carrier, i.e., in the secondary carrier for carrying the corresponding PMCH of the MCCH.Optionally, the specified RNTI is the M-RNTI.

In an optional embodiment, public search space is in the space that specifies search for.For ease of the corresponding MCCH Notifications of Changes of the different carrier waves of differentiation, the transmission subframe of the corresponding MCCH Notifications of Changes of the different carrier waves of setting is different.Based on this, communication interface 54 is additionally operable to before decoder 51 enters row decoding, the broadcast message that network side equipment is sent is received, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the corresponding MCCH Notifications of Changes of at least two carrier waves Transmission subframe it is different.Based on this, decoder 51 is specifically for the information according to the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

In an optional embodiment, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and second information field is used to indicate MCCH Notifications of Changes.Based on this, processor 53 knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave specifically for the value in first information domain in the DCI format that is carried based on the down control channel.Optionally, the specified DCI format is form 1C, and the first information domain is carrier wave instructions field CIF.

In an optional embodiment, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；It is wherein described

The corresponding N number of MCCH of N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

Optionally, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit., can first X corresponding to the carrier wave as a carrier wave X MCCH of correspondence

MCCH sorts, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.

Based on above-mentioned each optional embodiment, processor 53 is particularly used in the MCCH Notifications of Changes carried based on the down control channel, knows the corresponding MCCH changes of secondary carrier.

Optionally, on implementing, if decoder 51, memory 52, processor 53 and the independent realization of communication interface 54, decoder 51, memory 52, processor 53 and communication interface 54 can be connected with each other by bus and complete mutual communication.The bus can be industry standard architecture (Industry Standard Architecture, referred to as ISA) bus, sunset fore-telling portion apparatus interconnection (Peripheral

Component, referred to as PCI) bus or extended industry-standard architecture（Extended Industry Standard Architecture, referred to as EISA) bus etc..The bus can be divided into address bus, Data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 5 with a thick line, it is not intended that only one bus or a type of bus.

Optionally, on implementing, if decoder 51, memory 52, processor 53 and communication interface 54 is integrated realizes on one chip, decoder 51, memory 52, processor 53 and communication interface 54 can be completed by internal interface it is identical between communication.

The UE that the present embodiment is provided can be used for performing the flow in the acquisition method embodiment of channel change shown in Fig. 1, and its concrete operating principle is repeated no more, and refers to the description of embodiment of the method.

The UE that the present embodiment is provided, space is being specified search for based on specified DCI format, to entering row decoding using the down control channel for specifying RNTI to be scrambled, the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH Notifications of Changes of secondary carrier can be known, and then realize the notice of MCCH corresponding to secondary carrier change, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.

Fig. 6 is a kind of structural representation of network side equipment provided in an embodiment of the present invention.As shown in fig. 6, the network side equipment includes：Scrambling module 61 and sending module 62.

Scrambling module 61, for being scrambled using specified RNTI to down control channel, the down control channel carries MCCH Notifications of Changes.Optionally, the down control channel can include PDCCH, or E-PDCCH.

Sending module 62, is connected with scrambling module 61, for specifying search for space, and the down control channel after the scrambling is sent to UE.

In an optional embodiment, proprietary search space is in the space that specifies search for.Optionally, the proprietary search space is the UE corresponding proprietary search space of secondary carrier.Optionally, the specified RNTI is C-RNTI.

In an optional embodiment, as shown in fig. 7, the network side equipment also includes：Determining module 63.

Determining module 63, for before the down control channel that sending module 62 sends after the scrambling, determined according to UE M-RNTI it is described specify search for space, or specify search for space described in M-RNTI according to UE and carrier index determination.Determining module 63 is connected with sending module 62, and described space is specified search for for being provided to sending module 62.

Optionally, the carrier index can refer to system-level carrier index, or the carrier index can be with It is the proprietary carrier index of cell, the proprietary carrier index of cell is identical to all users.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.

Optionally, described to specify search for being spatially located in UE secondary carrier, the secondary carrier is the corresponding PMCH of carrying MCCH carrier wave.It should be noted that when the determining module 63 in network side equipment specifies search for space according to being determined M-RNTI and carrier index, the search space specified can also be located on main carrier.When the determining module 63 in network side equipment specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, then the search space specified is located in secondary carrier, i.e., positioned at 7 | in the secondary carrier for carrying the corresponding PMCH of the MCCH.

Optionally, the specified RNTI is the M-RNTI.

In an optional embodiment, the specified rope space is public search space.For ease of the corresponding MCCH Notifications of Changes of the different carrier waves of differentiation, the specified RNTI can be the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

In an optional embodiment, the specified rope space is public search space.For ease of distinguishing the corresponding MCCH Notifications of Changes of different carrier waves, the transmission subframe that the corresponding MCCH Notifications of Changes of different carrier waves can be set is different.Based on this, sending module 62 is specifically for before the down control channel after sending the scrambling, send and broadcast the message to UE, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and at least two the corresponding MCCH Notifications of Changes of carrier wave transmission subframe it is different, and in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for, send the down control channel after the scrambling to UE.

In an optional embodiment, first information domain and the second information field are included in the corresponding DCI format of the down control channel, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and the second information field user indicates MCCH Notifications of Changes.In this embodiment, the network side equipment distinguishes the corresponding MCCH Notifications of Changes of different carrier waves by specifying information field in the corresponding DCI format of down control channel.

In an optional embodiment, MCCH Notification of Changes instructions field is included in the corresponding DCI format of the down control channel, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

Optionally, the corresponding N number of MCCH of the M carrier wave is according to carrier index increasing or decreasing Order is numbered, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.In this embodiment, the network side equipment distinguishes the corresponding MCCH Notifications of Changes of different carrier waves by specifying information field in the corresponding DCI format of down control channel.

The network side equipment of the present embodiment can be base station, but not limited to this.

Each functional module for the network side equipment that the present embodiment is provided can be used for performing the flow in channel alteration notification method embodiment described in Fig. 2, and its concrete operating principle is repeated no more, and refers to the description of embodiment of the method.

The network side equipment that the present embodiment is provided, down control channel is scrambled using specified RNTI, then space is being specified search for, the down control channel after scrambling is sent to UE, UE is allowd to enter row decoding to the down control channel after scrambling based on specified DCI format, and then the MCCH Notifications of Changes carried based on down control channel, know that MCCH is changed, the wherein described space that specifies search for no longer is limited to public search space, therefore the corresponding MCCH of secondary carrier can be notified to change to UE, realize the notice of MCCH corresponding to secondary carrier change, allow to the developing MBMS service in secondary carrier, and then improve the utilization rate of carrier resource.

Fig. 8 is the structural representation of another network side equipment provided in an embodiment of the present invention.As shown in figure 8, the network side equipment includes：Memory 81, processor 82 and communication interface 83.

Memory 81, for storage program.Specifically, program can include program code, and described program code includes computer-managed instruction.Memory 81 may include high-speed RAM memory, it is also possible to also including nonvolatile memory（Non- volatile memory), for example, at least one magnetic disk storage.

Processor 82, the program for performing the storage of memory 81, for：Down control channel is scrambled using specified RNTI, the down control channel carries MCCH Notifications of Changes.Optionally, the down control channel can include PDCCH or E-PDCCH.

Communication interface 83, for specifying search for space, the down control channel after the scrambling is sent to UE.

In an optional embodiment, proprietary search space is in the space that specifies search for.Optionally, the proprietary search space is the UE corresponding proprietary search space of secondary carrier.Optionally, the specified RNTI is C-RNTI. In an optional embodiment, processor 82 is additionally operable to before the down control channel that communication interface 83 sends after the scrambling, determined according to UE M-RNTI it is described specify search for space, or specify search for space described in M-RNTI according to UE and carrier index determination.Processor 82 provides to communication interface 83 and described specifies search for space.

Optionally, the carrier index can refer to system-level carrier index, or the carrier index can be the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.The carrier index can also be the proprietary carrier index of user, i.e. the high-rise carrier index to user device configuration.

Optionally, described to specify search for being spatially located in UE secondary carrier, the secondary carrier is the corresponding PMCH of carrying MCCH carrier wave.It should be noted that when the processor 82 in network side equipment specifies search for space according to being determined M-RNTI and carrier index, the search space specified can also be located on main carrier.When the processor 82 in network side equipment specifies search for space according to being determined M-RNTI, if M-RNTI value is not differed to all carrier waves, then the search space specified is located in secondary carrier, i.e., positioned at 7 | in the secondary carrier for carrying the corresponding PMCH of the MCCH.

Optionally, the specified RNTI is the M-RNTI.

In an optional embodiment, the specified rope space is public search space.For ease of distinguishing the corresponding MCCH Notifications of Changes of different carrier waves, the transmission subframe that the corresponding MCCH Notifications of Changes of different carrier waves can be set is different.Based on this, communication interface 83 is specifically for before the down control channel after sending the scrambling, send and broadcast the message to UE, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and at least two the corresponding MCCH Notifications of Changes of carrier wave transmission subframe it is different, and in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for, send the down control channel after the scrambling to UE.

In an optional embodiment, MCCH is included in the corresponding DCI format of the down control channel Notification of Changes instructions field, the MCCH Notifications of Changes instructions field includes N number of bit, each bit one MCCH of correspondence, when the value of the bit is 1, and the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

Optionally, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.It as carrier wave X MCCH of correspondence, X MCCH corresponding to the carrier wave can first sort, then the corresponding MCCH of M carrier wave is ranked up according to the order of carrier index increasing or decreasing, finally Unified number again.In this embodiment, the network side equipment distinguishes the corresponding MCCH Notifications of Changes of different carrier waves by specifying information field in the corresponding DCI format of down control channel.

Optionally, on implementing, if memory 81, processor 82 and the independent realization of communication interface 83, memory 81, processor 82 and communication interface 83 can be connected with each other by bus and complete mutual communication.The bus can be isa bus, pci bus or eisa bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of representing, only represented in Fig. 8 with a thick line, it is not intended that only one bus or a type of bus.

Optionally, on implementing, if memory 81, processor 82 and communication interface 83 is integrated realizes on one chip, memory 81, processor 82 and communication interface 83 can be completed by internal interface it is identical between communication.

The network side equipment that the present embodiment is provided can be used for performing the flow in channel alteration notification method embodiment described in Fig. 2, and its concrete operating principle is repeated no more, and refers to the description of embodiment of the method.

One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can be completed by the related hardware of programmed instruction, and it is computer-readable that foregoing program can be stored in one Take in storage medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of channel change acquisition method, it is characterised in that including：

User equipment is based on specifying Downlink Control Information DCI format specifying search for space, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

The MCCH Notifications of Changes that the user equipment is carried based on the down control channel, know that MCCH is changed.

2nd, channel change acquisition method according to claim 1, it is characterised in that proprietary search space is in the space that specifies search for.

3rd, channel change acquisition method according to claim 2, it is characterised in that the proprietary search space is the corresponding proprietary search space of secondary carrier.

4th, the channel change acquisition method according to claim 3, it is characterised in that the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

5th, channel change acquisition method according to claim 1, it is characterised in that the user equipment is based on specifying DCI format specifying search for space, to being entered using the down control channel for specifying RNTI to be scrambled before row decoding, including：

The user equipment specifies search for space according to being determined multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI；Or,

The user equipment specifies search for space according to being determined M-RNTI and carrier index.

6th, channel change acquisition method according to claim 5, it is characterised in that the carrier index is the proprietary carrier index of cell, and the proprietary carrier index of cell is identical to all users.

7th, channel change acquisition method according to claim 5, it is characterised in that described to specify search for being spatially located in secondary carrier.

8th, the channel change acquisition method according to claim any one of 5-7, it is characterised in that the specified RNTI is the M-RNTI.

9th, channel change acquisition method according to claim 1, it is characterised in that public search space is in the space that specifies search for.

10th, channel change acquisition method according to claim 9, it is characterised in that the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

11st, channel change acquisition method according to claim 9, it is characterised in that the user Equipment is based on specifying DCI format specifying search for space, to being entered using the down control channel for specifying RNTI to be scrambled before row decoding, including：

The user equipment receives the broadcast message that network side equipment is sent, and the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different；

The user is based on specifying DCI format specifying search for space, to entering row decoding using the down control channel for specifying RNTI to be scrambled, including：

The user equipment is according to the information of the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

12nd, the channel change acquisition method according to claim any one of 1-11, it is characterized in that, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and second information field is used to indicate MCCH Notifications of Changes；The MCCH Notifications of Changes that the user equipment is carried based on the down control channel, know

MCCH is changed, including：

The value in first information domain knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave in the DCI format that the user equipment is carried based on the down control channel.

13rd, channel change acquisition method according to claim 12, it is characterised in that described to specify

DCI format is form 1C, and the first information domain is carrier wave instructions field CIF.

14th, the channel change acquisition method according to claim 1-11 any one, it is characterized in that, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

15th, channel change acquisition method according to claim 14, it is characterized in that, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit. 16th, the channel change acquisition method according to claim any one of 1-15, it is characterised in that the down control channel includes Physical Downlink Control Channel, or enhanced Physical Downlink Control Channel.

17th, the channel change acquisition method according to claim 1-16, it is characterised in that the MCCH Notifications of Changes that the user equipment is carried based on the down control channel, knows that MCCH becomes and further includes：

The MCCH Notifications of Changes that the user equipment is carried based on the down control channel, know the corresponding MCCH changes of secondary carrier.

18th, a kind of channel alteration notification method, it is characterised in that including：

Network side equipment is scrambled using specified Radio Network Temporary Identifier RNTI to down control channel, and the down control channel carries MCCH Notifications of Changes；

The network side equipment is specifying search for space, and the down control channel after the scrambling is sent to user equipment.

19th, channel alteration notification method according to claim 18, it is characterised in that proprietary search space is in the space that specifies search for.

20th, channel alteration notification method according to claim 19, it is characterised in that the proprietary search space is the corresponding proprietary search space of secondary carrier of the user equipment.

21st, channel change acquisition method according to claim 20, it is characterised in that the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

22nd, channel alteration notification method according to claim 18, it is characterised in that the network side equipment is specifying search for space, to before the down control channel after the user equipment transmission scrambling, including：

The network side equipment specifies search for space according to being determined the multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI of the user equipment；Or,

The network side equipment specifies search for space according to being determined the M-RNTI and carrier index of the user equipment.

23rd, channel alteration notification method according to claim 22, it is characterised in that the carrier index is the proprietary carrier index of cell, the proprietary carrier index of cell is identical to all users.

24th, channel alteration notification method according to claim 22, it is characterised in that described to specify search for being spatially located in the secondary carrier of the user equipment.

25th, the channel alteration notification method according to claim any one of 22-24, it is characterised in that The specified RNTI is the M-RNTI.

26th, channel alteration notification method according to claim 18, it is characterised in that public search space is in the space that specifies search for.

27th, channel alteration notification method according to claim 26, it is characterised in that the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

28th, channel alteration notification method according to claim 26, it is characterised in that the network side equipment is specifying search for space, to before the down control channel after the user equipment transmission scrambling, including：

The network side equipment sends to the user equipment and broadcast the message, and the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different；

The network side equipment is specifying search for space, and the down control channel after the scrambling is sent to user equipment, including：

The network side equipment is specifying search for space in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, and the down control channel after the scrambling is sent to the user equipment.

29th, the channel alteration notification method according to claim any one of 18-28, it is characterized in that, first information domain and the second information field are included in the corresponding Downlink Control Information DCI format of the down control channel, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and the second information field user indicates MCCH Notifications of Changes.

30th, the channel alteration notification method according to claim any one of 18-28, it is characterized in that, MCCH Notification of Changes instructions field is included in the corresponding DCI format of the down control channel, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

31st, channel change acquisition method according to claim 30, it is characterized in that, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in the N bit.

32nd, the channel alteration notification method according to claim any one of 18-31, it is characterised in that the down control channel includes Physical Downlink Control Channel, or enhanced Physical Downlink Control Channel. 33rd, a kind of user equipment, it is characterised in that including：

Decoding module, for specifying search for space based on specified Downlink Control Information DCI format, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

Acquisition module, for the MCCH Notifications of Changes carried based on the down control channel, is known

MCCH is changed.

34th, user equipment according to claim 33, it is characterised in that proprietary search space is in the space that specifies search for.

35th, user equipment according to claim 34, it is characterised in that the proprietary search space is the corresponding proprietary search space of secondary carrier.

36th, user equipment according to claim 35, it is characterised in that the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

37th, user equipment according to claim 33, it is characterised in that also include：Determining module, space is specified search for for before the decoding module enters row decoding, specifying search for space according to being determined multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI, or according to being determined M-RNTI and carrier index.

38th, the user equipment according to claim 37, it is characterised in that the carrier index is the proprietary carrier index of cell, the proprietary carrier index of cell is identical to all users.

39th, the user equipment according to claim 37, it is characterised in that described to specify search for being spatially located in secondary carrier.

40th, the user equipment according to claim any one of 37-39, it is characterised in that the specified RNTI is the M-RNTI.

41st, user equipment according to claim 33, it is characterised in that public search space is in the space that specifies search for.

42nd, user equipment according to claim 41, it is characterised in that the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

43rd, user equipment according to claim 41, it is characterised in that also include：Receiving module, for before the decoding module enters row decoding, receive the broadcast message that network side equipment is sent, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and the transmission subframe of the corresponding MCCH Notifications of Changes of at least two carrier waves is different； The decoding module is specifically for the information according to the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, determine the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, space is being specified search for based on specified DCI format, to entering row decoding using the specified RNTI down control channels scrambled.

44th, the user equipment according to claim any one of 33-43, it is characterized in that, first information domain and the second information field are included in the specified DCI format, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and second information field is used to indicate MCCH Notifications of Changes；The acquisition module knows that the value of the second information field in the corresponding carrier wave of the down control channel, and the DCI format carried based on the down control channel knows the corresponding MCCH changes of the carrier wave specifically for the value in first information domain in the DCI format that is carried based on the down control channel.

45th, user equipment according to claim 44, it is characterised in that the specified DCI format is form 1C, the first information domain is carrier wave instructions field CIF.

46th, the user equipment according to claim any one of 33-43, it is characterized in that, MCCH Notification of Changes instructions field is included in the specified DCI format, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

47th, user equipment according to claim 46, it is characterized in that, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in N number of bit.

48th, the user equipment according to claim any one of 33-47, it is characterised in that the down control channel includes Physical Downlink Control Channel, or enhanced Physical Downlink Control Channel.

49th, the user equipment according to claim any one of 33-48, it is characterised in that the acquisition module knows the corresponding MCCH changes of secondary carrier specifically for the MCCH Notifications of Changes carried based on the down control channel.

50th, a kind of network side equipment, it is characterised in that including：

Scrambling module, for being scrambled using specified Radio Network Temporary Identifier RNTI to down control channel, the down control channel carries MCCH Notifications of Changes；

Sending module, for specifying search for space, the descending control after the scrambling is sent to user equipment Channel processed.

51st, network side equipment according to claim 50, it is characterised in that proprietary search space is in the space that specifies search for.

52nd, network side equipment according to claim 51, it is characterised in that the proprietary search space is the corresponding proprietary search space of secondary carrier of the user equipment.

53rd, network side equipment according to claim 52, it is characterised in that the specified RNTI is Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI.

54th, network side equipment according to claim 50, it is characterised in that also include：Determining module, for before the down control channel that the sending module sends after the scrambling, determined according to the multimedia broadcast multi-broadcasting business Radio Network Temporary Identifier M-RNTI of the user equipment it is described specify search for space, or specify search for space described in M-RNTI according to the user equipment and carrier index determination.

55th, network side equipment according to claim 54, it is characterised in that the carrier index is the proprietary carrier index of cell, the proprietary carrier index of cell is identical to all users.

56th, network side equipment according to claim 54, it is characterised in that described to specify search for being spatially located in the secondary carrier of the user equipment.

57th, the network side equipment according to claim any one of 54-56, it is characterised in that the specified RNTI is the M-RNTI.

58th, network side equipment according to claim 50, it is characterised in that the specified rope space is public search space.

59th, network side equipment according to claim 58, it is characterised in that the specified RNTI is the proprietary M-RNTI of carrier wave, and the corresponding proprietary M-RNTI of carrier wave of different carrier waves is different.

60, network side equipment according to claim 58, it is characterized in that, the sending module is specifically for before the down control channel after sending the scrambling, send and broadcast the message to the user equipment, the broadcast message carries the information for the transmission subframe for indicating the corresponding MCCH Notifications of Changes of each carrier wave, and at least two the corresponding MCCH Notifications of Changes of carrier wave transmission subframe it is different, and in the transmission subframe of the corresponding MCCH Notifications of Changes of each carrier wave, specifying search for space, the down control channel after the scrambling is sent to the user equipment.

61st, the network side equipment according to claim any one of 50-60, it is characterised in that include first information domain and the second information in the corresponding Downlink Control Information DCI format of the down control channel Domain, the first information domain is used to indicate the corresponding carrier wave of the down control channel, and the second information field user indicates MCCH Notifications of Changes.

62nd, the network side equipment according to claim any one of 50-60, it is characterized in that, MCCH Notification of Changes instructions field is included in the corresponding DCI format of the down control channel, the MCCH Notifications of Changes instructions field includes N number of bit, one MCCH of each bit correspondence, when the value of the bit is 1, the corresponding MCCH of the bit is changed；The corresponding N number of MCCH of wherein described N number of bit includes the corresponding MCCH of M carrier wave, and the N is the integer more than or equal to 2, and the M is the integer more than or equal to 2.

63rd, network side equipment according to claim 62, it is characterized in that, the corresponding N number of MCCH of the M carrier wave is numbered according to the order of carrier index increasing or decreasing, corresponding from low level to the high-order MCCH successively with numbering from small to large in N number of bit.

64th, the network side equipment according to claim any one of 50-63, it is characterised in that the down control channel includes Physical Downlink Control Channel, or enhanced Physical Downlink Control Channel.

65th, a kind of user equipment, it is characterised in that including：

Decoder, for specifying search for space based on specified Downlink Control Information DCI format, to entering row decoding using the down control channel for specifying Radio Network Temporary Identifier RNTI to be scrambled；Wherein, the down control channel carrying MCCH Notifications of Changes；

Memory, for storage program；

Processor, for performing described program, for：The MCCH Notifications of Changes carried based on the down control channel, know that MCCH is changed.

66th, a kind of network side equipment, it is characterised in that including：

Memory, for storage program；

Processor, for performing described program, for：Down control channel is scrambled using specified Radio Network Temporary Identifier RNTI, the down control channel carries MCCH Notifications of Changes；

Communication interface, for specifying search for space, the down control channel after the scrambling is sent to user equipment.