CN101867880B - Method and device for bearing and receiving control information of MCCH (Multipoint Control Channel) and MCCH updating indication information - Google Patents

Method and device for bearing and receiving control information of MCCH (Multipoint Control Channel) and MCCH updating indication information Download PDF

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Publication number
CN101867880B
CN101867880B CN200910081887.0A CN200910081887A CN101867880B CN 101867880 B CN101867880 B CN 101867880B CN 200910081887 A CN200910081887 A CN 200910081887A CN 101867880 B CN101867880 B CN 101867880B
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mcch
indication information
control information
information
control
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CN101867880A (en
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苟伟
毕峰
马子江
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/071347 priority patent/WO2010118659A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Abstract

The invention discloses a method for bearing and receiving control information of an MCCH (Multipoint Control Channel) and MCCH updating indication information. The method comprises the steps of: setting the same RNTI (Radio Network Temporary Identity) for the MCCH and the MCCH updating indication information; respectively bearing the control information of the MCCH and the MCCH updating indication information in a non-public searching region and a public searching region; or respectively bearing the control information of the MCCH and the MCCH updating indication information into a control channel element (CCE) set by a subframe control region; or respectively bearing the control information of the MCCH and the MCCH updating indication information in control regions of different subframes. The invention also discloses a method for receiving the control information of the MCCH and the MCCH updating indication information. The invention also discloses a device for realizing the methods. The invention ensures that a mobile terminal receives the control information of the MCCH and the MCCH updating indication information more quickly, thereby saving more electricity.

Description

MCCH and MCCH upgrade carrying, method of reseptance and the device of indication information control information
Technical field
The present invention relates to multimedia broadcast multi-broadcasting business control channel (MCCH, MBMS ControlChannel) and MCCH upgrade carrying, the reception technique of control information of indication information, relate in particular to carrying, method of reseptance and device that MCCH and MCCH in a kind of multimedia broadcast multi-broadcasting business (MBMS, Multimedia Broadcast Multicast Service) system upgrade the control information of indication information.
Background technology
Along with the fast development of Internet and popularizing of large-screen Multi-featured Mobile Terminal, a large amount of Mobile data multimedia services and various high bandwidth multimedia service have been there is, as video conference, television broadcasting, video request program, advertisement, online education, interactive game etc., this has met the multiple services demand of mobile subscriber on the one hand, simultaneously also for mobile operator has brought new business growth point.These Mobile data multimedia services require multiple users can receive identical data simultaneously, compared with general data service, have the features such as data volume is large, duration length, delay sensitive.
In order to effectively utilize mobile network resource, third generation partner program (3GPP, 3rd GenerationPartnership Project) MBMS proposed, this business is a kind of technology that transmits data from a data source to multiple destination mobile terminals, realize sharing of network (comprising core net and Access Network) resource, improved the utilance of Internet resources (especially air interface resource).The MBMS of 3GPP definition not only can realize classes of messages multicast and the broadcast of plain text low rate, but also can realize broadcast and the multicast of high-speed multimedia business, multiple abundant video, audio frequency and multimedia service are provided, this has complied with the trend of following Mobile data development undoubtedly, for the development of 3G provides better business prospect.
At Long Term Evolution (LTE, Long Term Evolution) in system, the bearing mode of the control channel MCCH of MBMS is not also come to a conclusion at present, according to the agreement in agreement 36.300-870, MCCH can adopt single cell pattern to send, be mapped to DSCH Downlink Shared Channel (DL-SCH, Downlink Shared Channel) upper transmission, do not carry out multimedia broadcast multi-broadcasting business single frequency network (MBSFN with adjacent cell, MultimediaBroadcast Multicast Service Single Frequency Network) merge, also can adopt many cell patterns to send, be mapped to Multicast Channel (MCH, Multicast Channel) upper transmission, carry out MBSFN merging with adjacent cell.Above-mentioned DL-SCH and MCH are finally mapped in the subframe of physical layer, when network side is carried on MCCH in a certain subframe, the control information notice of how to carry MCCH in this sub-frame data territory need be sent to mobile terminal in the control domain of this subframe, in LTE system, can adopt at present control domain in the subframe of carrying MCCH (corresponding to Physical Downlink Control Channel (PDCCH, PhysicalDownlink Control Channel)) in by the Radio Network Temporary Identifier (RNTI of MCCH, RadioNetwork Temporary Identifier) identify the control information of MCCH in control domain, so that mobile terminal obtains the control information of MCCH from control domain, then according to the indication of the control information of MCCH, at data field, receive MCCH again.
In LTE, the send mode of MCCH renewal indication information is also determined at present, probably identical with the mode of obtaining MCCH control information but sub-frame level is obtained the mode of MCCH renewal indication information control information.If it is identical that MCCH and MCCH upgrade the bearing mode of indication information control information, how to realize the notice to mobile terminal, be also the problem facing at present.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of MCCH and MCCH to upgrade carrying, method of reseptance and the device of the control information of indication information, so that the control information of acquisition for mobile terminal MCCH and MCCH renewal indication information is faster easy.
For achieving the above object, technical scheme of the present invention is achieved in that
MCCH and MCCH upgrade a bearing method for the control information of indication information, comprising:
For MCCH and MCCH upgrade indication information, identical RNTI is set; And
The described MCCH that comprises described RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain; Or, by a control channel unit CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
Preferably, when different DCI forms is used in the control information of described MCCH and MCCH renewal indication information, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, is specially:
The described MCCH that comprises described RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain;
Or, by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements;
Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
MCCH and MCCH upgrade a bearing method for the control information of indication information, comprising:
For MCCH and MCCH upgrade indication information, different RNTI is set, the control information that the described MCCH that comprises RNTI and MCCH are upgraded to indication information is carried on the control domain of subframe.
Preferably, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on to the control domain of subframe, is specially:
The described MCCH that comprises RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain;
Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried in the CCE within the scope of agreement; Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements;
Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of same subframe;
Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
A bearing method for MCCH control information, comprising:
For MCCH arranges RNTI; And
The control information of the described MCCH that comprises described RNTI is carried on to non-Catalog Search region or the Catalog Search region of subframe control domain; Or, the control information of the described MCCH that comprises described RNTI is carried in the CCE within the scope of agreement; Or, the control information of the described MCCH that comprises described RNTI is used to the Downlink Control Information DCI form of arranging.
MCCH upgrades a bearing method for the control information of indication information, comprising:
For MCCH upgrades indication information, RNTI is set; And
The control information of the described MCCH renewal indication information that comprises described RNTI is carried on to non-Catalog Search region or the Catalog Search region of subframe control domain; Or the control information of the described MCCH that comprises described RNTI being upgraded to indication information is carried in the CCE within the scope of agreement; Or, the described MCCH that comprises described RNTI is upgraded to the control information of indication information and uses the Downlink Control Information DCI form of arranging.
MCCH and MCCH upgrade a method of reseptance for the control information of indication information, comprising:
According to the bearing mode of the control information of MCCH and MCCH renewal indication information, the described MCCH that utilization configures and MCCH upgrade the RNTI of indication information, receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of control information that carries described MCCH and MCCH renewal indication information.
Preferably, the RNTI of described MCCH and MCCH renewal indication information is identical; The bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or, in a CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
Preferably, described MCCH and MCCH upgrade the RNTI difference of indication information, and the bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the CCE within the scope of agreement; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of same subframe;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
MCCH and MCCH upgrade a bogey for the control information of indication information, comprising:
Setting unit, is used to MCCH and MCCH to upgrade indication information identical RNTI is set; And
Load bearing unit, is carried on the non-Catalog Search region of subframe control domain for the described MCCH that comprises described RNTI and MCCH being upgraded to of control information of indication information, another control information is carried on the Catalog Search region of subframe control domain; Or, by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
MCCH and MCCH upgrade a bogey for the control information of indication information, comprising:
Setting unit, is used to MCCH and MCCH to upgrade indication information different RNTI is set; And
Load bearing unit, for being carried on the control information of the described MCCH that comprises RNTI and MCCH renewal indication information the control domain of subframe.
Preferably, described load bearing unit is carried on the control information of the described MCCH that comprises RNTI and MCCH renewal indication information the control domain of subframe, is specially:
The described MCCH that comprises RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain;
Or, by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of same subframe;
Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
A bogey for MCCH control information, comprising:
Setting unit, is used to MCCH that RNTI is set; And
Load bearing unit, for being carried on the control information of the described MCCH that comprises described RNTI in non-Catalog Search region or the Catalog Search region of subframe control domain; Or, the control information of the described MCCH that comprises described RNTI is carried in the CCE within the scope of agreement; Or, the control information of the described MCCH that comprises described RNTI is used to the Downlink Control Information DCI form of arranging.
MCCH upgrades a bogey for the control information of indication information, comprising:
Setting unit, is used to MCCH to upgrade indication information RNTI is set; And
Load bearing unit, for being carried on the control information of the described MCCH renewal indication information that comprises described RNTI in non-Catalog Search region or the Catalog Search region of subframe control domain; Or the control information of the described MCCH that comprises described RNTI being upgraded to indication information is carried in the CCE within the scope of agreement; Or, the described MCCH that comprises described RNTI is upgraded to the control information of indication information and uses the Downlink Control Information DCI form of arranging.
MCCH and MCCH upgrade a receiving system for the control information of indication information, comprising:
Acquiring unit, upgrades the RNTI of indication information and the bearing mode of control information thereof for obtaining MCCH and MCCH; And
Receiving element, for utilizing described RNTI to receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of the control information of the described MCCH of carrying and MCCH renewal indication information.
Preferably, the RNTI that described MCCH and MCCH upgrade indication information is identical, and the bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or, in a CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
Preferably, described MCCH and MCCH upgrade the RNTI difference of indication information, and the bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or, in a CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of same subframe;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
The RNTI that the MCCH that the present invention configures according to network side and MCCH upgrade indication information determines that MCCH and MCCH upgrade the bearing resource of the control information of indication information, so that mobile terminal can be intercepted out the control information of MCCH and MCCH renewal indication information timely and accurately, by resource bearing scheme of the present invention, the control information of mobile terminal reception MCCH and MCCH renewal indication information is faster easy, thereby makes more power saving of mobile terminal.
Accompanying drawing explanation
Fig. 1 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment mono-of the control information of indication information;
Fig. 2 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment bis-of the control information of indication information;
Fig. 3 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment tri-of the control information of indication information;
Fig. 4 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment tetra-of the control information of indication information;
Fig. 5 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment five of the control information of indication information;
Fig. 6 is the flow chart of the bearing method of the control information of MCCH in MBMS system of the present invention;
Fig. 7 is the flow chart that in MBMS system of the present invention, MCCH upgrades the bearing method of the control information of indication information;
Fig. 8 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the method for reseptance of the control information of indication information;
Fig. 9 is the composition structural representation that in MBMS system of the present invention, MCCH and MCCH upgrade the bogey embodiment mono-of the control information of indication information;
Figure 10 is the composition structural representation that in MBMS system of the present invention, MCCH and MCCH upgrade the bogey embodiment bis-of the control information of indication information;
Figure 11 is the composition structural representation of the bogey of the control information of MCCH in MBMS system of the present invention;
Figure 12 is the composition structural representation that in MBMS system of the present invention, MCCH upgrades the bogey of the control information of indication information;
Figure 13 is the composition structural representation that in MBMS system of the present invention, MCCH and MCCH upgrade the receiving system of the control information of indication information.
Embodiment
Basic thought of the present invention is: MCCH upgrades the identical or different RNTI of indication information carrying with MCCH, this RNTI helps mobile terminal to find that at the control domain (being carried by PDCCH) of subframe MCCH or MCCH upgrade the control information of indication information, this control information describes that MCCH or MCCH upgrade indication information in the position of the data field (being carried by DL-SCH) of this subframe and modulating-coding pattern (MCS, the Modulation and Coding Scheme) information adopting etc.Described control information comprises that MCCH and MCCH upgrade the scheduling beared information of indication information.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the existing subframe structure of LTE system, for embodiment and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment mono-of the control information of indication information, as shown in Figure 1, in this example MBMS system, the bearing method of the control information of MCCH and MCCH renewal indication information comprises the following steps:
Step 101: identical RNTI is set for MCCH and MCCH upgrade indication information.
RNTI is the parameter of being carried by the network side of MBMS system, the RNTI of MCCH carried, processing complexity when receiving MCCH and MCCH and upgrade the control information of indication information for reducing system bearing complexity and reducing mobile terminal, the RNTI that the present invention upgrades indication information by MCCH is carried as identical with the RNTI of MCCH, like this, in system, carry a RNTI and can realize the reception of MCCH and MCCH being upgraded to the control information of indication information.
RNTI is assist mobile terminal receives the control information of MCCH and MCCH renewal indication information sign at the control domain of subframe, the network side of MBMS system is when encapsulating the control information of MCCH and MCCH renewal indication information, RNTI can be implicitly included in CRC (the Cyclic Redundancy Check) check code of control information that MCCH and MCCH upgrade indication information (specifically with reference to LTE agreement 36.212 and 36.211 agreements), here, MCCH has been described respectively in the control information of MCCH or MCCH renewal indication information and MCCH upgrades the position of indication information at the data field (corresponding to DL-SCH) of described subframe, and the MCS information adopting etc.The scheduling configuration information that the control information of MCCH comprises, is used for describing the running time-frequency resource information of MCCH in described sub-frame data territory, the MCS information that MCCH adopts etc.The scheduling configuration information that the control information of MCCH renewal indication information comprises, is used for describing MCCH and upgrades the running time-frequency resource information of indication information in described sub-frame data territory, and the MCS information adopting etc.
Step 102: the described MCCH that comprises described RNTI and MCCH are upgraded in the control information of indication information one and be carried on the non-Catalog Search region of subframe control domain, another control information is carried on the Catalog Search region of subframe control domain.
In LTE, the previous control domain that is this subframe to four OFDMs (OFDM, OrthogonalFrequency Division Multiplexing) symbol of a subframe.Which OFDM symbol control domain is specifically carried as, and by grid side, is determined and is notified.In subframe control domain, the unit of bear control information is control channel unit (CCE, Control Channel Element).
The control information of MCCH and MCCH renewal indication information is carried on to non-Catalog Search region and the Catalog Search region in subframe control domain, the running time-frequency resource that upgrades the control information of indication information by carrying MCCH and MCCH is distinguished MCCH and MCCH and upgrades the control information of indication information, so that mobile terminal is to the control information that receives MCCH and MCCH on corresponding running time-frequency resource and upgrade indication information.Because MCCH upgrades the control information of indication information, be that mobile terminal receives while taking and reads, thereby can be carried on the Catalog Search region of control domain, because the CCE scope of resource that Catalog Search region is shared is fixed, and relatively less, the efficiency that can improve like this mobile terminal blind check, is conducive to electricity saving of mobile terminal.The control information of MCCH is carried on to non-Catalog Search region.Same, the control information of MCCH is carried on to Catalog Search region, and the control information that MCCH upgrades indication information is carried on to non-Catalog Search region.
The form of the Downlink Control Information (DCI, Downlink Control Information) that the control information of MCCH and MCCH renewal indication information is used is identical.In LTE system, be provided with the DCI form of control information, select wherein a kind ofly and notify mobile terminal, certainly, different DCI forms is selected in the control information that also can be MCCH and MCCH renewal indication information.
Network side sends the control information of the RNTI that contains MCCH in the control domain carrying of the subframe that sends described MCCH, and sends described MCCH on the running time-frequency resource of the data field of indicating in control information.Network side upgrades the subframe of indication information the control information of the RNTI that contains MCCH renewal indication information control domain carrying at the described MCCH of transmission sends, and on the running time-frequency resource of the data field of indicating in control information, sends described MCCH renewal indication information.
Fig. 2 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment bis-of the control information of indication information, as shown in Figure 2, in this example MBMS system, the bearing method of the control information of MCCH and MCCH renewal indication information comprises the following steps:
Step 201: identical RNTI is set for MCCH and MCCH upgrade indication information.
The implementation of this step is identical with step 101, repeats no more here.
Step 202: by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Maybe the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements.
At least one being in the control information that MCCH or MCCH upgrade indication information arranges special CCE, like this, the control information that is MCCH or MCCH renewal indication information of carrying in special CCE, the control information that is MCCH renewal indication information or MCCH of carrying in the CCE outside special CCE.
Also can be that the control information of MCCH and the control information of MCCH renewal indication information arrange respectively special CCE simultaneously, what which CCE carrying mobile terminal can determine by the numbering of CCE in subframe control domain is the control information of MCCH, what which CCE carried is the control information that MCCH upgrades indication information, by carrying special CCE, can greatly shorten the blind check number of times of terminal, thereby realize the power saving of terminal, realize terminal high-speed receiving to corresponding control information.When the control information of upgrading indication information as the control information of MCCH and MCCH is carried in same subframe, the numbering of the CCE of the control information of carrying MCCH and MCCH renewal indication information is preferably continuous, in subframe, be numbered the control information of carrying MCCH in 17 to 24 CCE and upgrade indication information, and be numbered the control information of carrying MCCH in 25 to 32 CCE, like this, mobile terminal only blind check be numbered 17 to 32 CCE and can know corresponding control information.
In this example, the DCI form that the control information of MCCH and MCCH renewal indication information is used is identical or different.Preferred identical DCI form is format 1C (concrete formal definition is with reference to LTE agreement 36.212).
The control information that described MCCH in step 202 and MCCH upgrade indication information comprises described RNTI's, and network side is implicitly included in RNTI in the CRC of control information that MCCH and MCCH upgrade indication information (method concrete in secret can with reference to the agreement of LTE 36.212 and 36.211).
Fig. 3 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the bearing method embodiment tri-of the control information of indication information, as shown in Figure 3, in this example MBMS system, the bearing method of the control information of MCCH and MCCH renewal indication information comprises the following steps:
Step 301: identical RNTI is set for MCCH and MCCH upgrade indication information.
The implementation of this step is identical with step 101, repeats no more here.
Step 302: the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of subframe, and described MCCH and MCCH upgrade the control information of indication information and use different DCI forms.
In this step, by the different DCI form of selecting for the control information of MCCH and MCCH renewal indication information, distinguished, here can be also the DCI form that MCCH and MCCH upgrade the control information use agreement of indication information, preferably MCCH use DCI form is format 1C form, MCCH upgrade indication information use other for descending DCI form, or, for MCCH upgrades indication information, to use DCI form be format 1C form, MCCH information use other for descending DCI form.Mobile terminal carries out blind Detecting according to different DCI forms, can receive respectively the control information of MCCH and MCCH renewal indication information.About the implementation of blind Detecting, can consult the associated description in agreement 36.212.
For making mobile terminal receive more quickly the control information of MCCH and MCCH renewal indication information, in the case of MCCH and MCCH upgrade DCI form that the control information of indication information selects different, the control information that described MCCH and MCCH can be upgraded to indication information be carried by the bearing mode in abovementioned steps 102, step 202.
The control information that described MCCH in step 302 and MCCH upgrade indication information comprises described RNTI's, and network side is implicitly included in RNTI in the CRC of control information that MCCH and MCCH upgrade indication information (method concrete in secret can with reference to the agreement of LTE 36.212 and 36.211).
Fig. 4 is the flow chart that in MBMS of the present invention system, MCCH and MCCH upgrade the bearing method embodiment tetra-of the control information of indication information, and as shown in Figure 4, the bearing method that in this example MBMS system, MCCH and MCCH upgrade the control information of indication information comprises the following steps:
Step 401: identical RNTI is set for MCCH and MCCH upgrade indication information.
The implementation of this step is identical with step 101, repeats no more here.
Step 402: the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
This example is to distinguish by the subframe numbers of the control information of carrying MCCH and MCCH renewal indication information, because carrying MCCH and MCCH upgrade the subframe numbers difference of the control information of indication information, therefore the subframe numbers that, mobile terminal passes through intercepted subframe can be determined respectively MCCH and MCCH and upgrade the control information of indication information.For example, MCCH sends on the subframe #2 of radio frames #32, MCCH upgrades indication information and sends on the subframe #1 of radio frames #32, it is upper that control information is separately carried on respectively subframe #2, the subframe #1 of radio frames #32, can be determined the MCCH that intercepted out and MCCH and upgraded the control information of indication information by subframe numbers.Now, the DCI form that the control information of MCCH and MCCH renewal indication information is used is preferably identical.
The control information that described MCCH in step 402 and MCCH upgrade indication information comprises described RNTI's, and network side is implicitly included in RNTI in the CRC of control information that MCCH and MCCH upgrade indication information (method concrete in secret can with reference to the agreement of LTE 36.212 and 36.211).
Fig. 5 is the flow chart that in MBMS of the present invention system, MCCH and MCCH upgrade the bearing method embodiment five of the control information of indication information, and as shown in Figure 5, the bearing method that in this example MBMS system, MCCH and MCCH upgrade the control information of indication information comprises the following steps:
Step 501: different RNTI is set for MCCH and MCCH upgrade indication information.
RNTI is the parameter of being carried by the network side of MBMS system, the RNTI of MCCH carried, for distinguishing MCCH and MCCH, upgrade the control information of indication information, MCCH upgrade the RNTI of indication information and be set to differently from the RNTI of MCCH, mobile terminal can be realized the differentiation of MCCH and MCCH being upgraded to the control information of indication information by RNTI.
Step 502: the control domain that the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on to subframe.
Owing to can distinguish the control information of MCCH and MCCH renewal indication information by RNTI, therefore, the control information no matter MCCH and MCCH upgrade indication information is carried on which position in subframe control domain, no matter whether MCCH and MCCH to upgrade the DCI form that the control information of indication information used identical, and mobile terminal always can detection zone separates MCCH and MCCH upgrades the control information of indication information.For making the efficiency of the control information of moving detection MCCH and MCCH renewal indication information higher, can adopt the bearing mode shown in earlier figures 1 to Fig. 4, repeat no longer one by one here.
Fig. 6 is the flow chart of the bearing method of the control information of MCCH in MBMS system of the present invention, and as shown in Figure 6, in MBMS system of the present invention, in MBMS system, the bearing method of the control information of MCCH comprises the following steps:
Step 601: for MCCH arranges RNTI.Set-up mode is similar to the set-up mode in abovementioned steps 101, repeats no more here.
Step 602: the non-Catalog Search region or the Catalog Search region that the control information of the described MCCH that comprises described RNTI are carried on to subframe control domain; Or, the control information of the described MCCH that comprises described RNTI is carried in the CCE within the scope of agreement; Or, the control information of the described MCCH that comprises described RNTI is used to the Downlink Control Information DCI form of arranging.
The implementation of step 602 can be referring to step 102,202 and 302 bearing mode.
Fig. 7 is the flow chart that in MBMS system of the present invention, MCCH upgrades the bearing method of the control information of indication information, and as shown in Figure 7, in MBMS system of the present invention, in MBMS system, the bearing method of the control information of MCCH renewal indication information comprises the following steps:
Step 701: RNTI is set for MCCH upgrades indication information.Set-up mode is similar to the set-up mode in abovementioned steps 101, repeats no more here.
Step 702: the non-Catalog Search region or the Catalog Search region that the control information of the described MCCH renewal indication information that comprises described RNTI are carried on to subframe control domain; Or the control information of the described MCCH that comprises described RNTI being upgraded to indication information is carried in the CCE within the scope of agreement; Or, the described MCCH that comprises described RNTI is upgraded to the control information of indication information and uses the Downlink Control Information DCI form of arranging.
The implementation of step 702 can be referring to step 102,202 and 302 bearing mode.
Fig. 8 is the flow chart that in MBMS system of the present invention, MCCH and MCCH upgrade the method for reseptance of the control information of indication information, and as shown in Figure 8, the method for reseptance that in MBMS system of the present invention, MCCH and MCCH upgrade the control information of indication information comprises the following steps:
Step 801: obtain MCCH and MCCH and upgrade the RNTI of indication information and the bearing mode of control information thereof.
The bearing mode that MCCH and MCCH upgrade the control information of indication information is determined by network side, once no longer change after determining, MCCH and MCCH upgrade the bearing mode of the control information of indication information and by unique, are determined, MCCH and MCCH upgrade bearing mode and the RNTI thereof of the control information of indication information, will in related protocol, stipulate.Terminal is natural in producing to be stipulated with reference to related protocol.Therefore, when receiving the control information of MCCH and MCCH renewal indication information, utilize RNTI, according to the bearing mode of the control information of configured MCCH and MCCH renewal indication information, to corresponding running time-frequency resource, receive the control information of MCCH and MCCH renewal indication information.The information of RNTI also can write related protocol, and is configured in mobile terminal, also can be by network side short notice to mobile terminal.
At MCCH and MCCH, upgrade the RNTI of indication information when identical, the bearing mode that MCCH and MCCH upgrade the control information of indication information can be any shown in Fig. 1 to Fig. 4.And MCCH and MCCH upgrade the RNTI of indication information when different, the control information no matter MCCH and MCCH upgrade indication information is carried on which position in subframe control domain, no matter whether MCCH and MCCH to upgrade the DCI form that the control information of indication information used identical, and mobile terminal always can detection zone separates MCCH and MCCH upgrades the control information of indication information.
Step 802: upgrade the RNTI of indication information and the bearing mode of control information thereof according to obtained MCCH and MCCH, receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of control information that carries described MCCH and MCCH renewal indication information.
Mobile terminal upgrades bearing mode and the RNTI thereof of the control information of indication information according to MCCH and MCCH, on corresponding running time-frequency resource, detect corresponding control information, detection mode is undertaken by existing mode, here repeat no more it and realize details, specifically can consult the associated description in agreement 36.212.
Fig. 9 is the composition structural representation that in MBMS system of the present invention, MCCH and MCCH upgrade the bogey embodiment mono-of the control information of indication information, as shown in Figure 9, in this example system, the bogey of the control information of MCCH and MCCH renewal indication information comprises setting unit 90 and load bearing unit 91, wherein, setting unit 90 is used to MCCH and MCCH to upgrade indication information identical RNTI is set.Load bearing unit 91 is carried on the non-Catalog Search region of subframe control domain for the described MCCH that comprises described RNTI and MCCH being upgraded to of control information of indication information, another control information is carried on the Catalog Search region of subframe control domain; Or, by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Maybe the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe to the Downlink Control Information DCI form difference that the control information of described MCCH and MCCH renewal indication information is used; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
Those skilled in the art are to be understood that, in MBMS shown in Fig. 9 of the present invention system, to upgrade the bogey of the control information of indication information be that the bearing method that upgrades the control information of indication information for realizing MCCH and MCCH in the MBMS system shown in Fig. 1 to Fig. 4 designs for MCCH and MCCH, the practical function of the each processing unit in Fig. 9 shown device can be understood referring to figs. 1 through the associated description in the method shown in Fig. 4, the function of each unit can realize by the program running on processor, also can realize by corresponding logical circuit.
Figure 10 is the composition structural representation that in MBMS system of the present invention, MCCH and MCCH upgrade the bogey embodiment bis-of the control information of indication information, as shown in figure 10, in this example MBMS system, the bogey of the control information of MCCH and MCCH renewal indication information comprises setting unit 100 and load bearing unit 101, wherein, setting unit 100 is that MCCH and MCCH renewal indication information arrange different RNTI.Load bearing unit 101 is for being carried on the control information of the described MCCH that comprises RNTI and MCCH renewal indication information the control domain of subframe.Load bearing unit 101 is carried on the control information of the described MCCH that comprises RNTI and MCCH renewal indication information the control domain of subframe, be specially: the described MCCH that comprises RNTI and MCCH are upgraded in the control information of indication information one and be carried on the non-Catalog Search region of subframe control domain, another control information is carried on the Catalog Search region of subframe control domain; Or, by a CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of same subframe; Or, the control information of the described MCCH that comprises RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
Those skilled in the art are to be understood that, in MBMS shown in Figure 10 of the present invention system, to upgrade the bogey of the control information of indication information be that the bearing method that upgrades the control information of indication information for realizing MCCH and MCCH in the MBMS system shown in Fig. 5 designs for MCCH and MCCH, the practical function of the each processing unit in Figure 10 shown device can be understood with reference to the associated description in the method shown in Fig. 5, the function of each unit can realize by the program running on processor, also can realize by corresponding logical circuit.
Figure 11 is the composition structural representation of the bogey of the control information of MCCH in MBMS system of the present invention, as shown in figure 11, in MBMS system of the present invention, the bogey of the control information of MCCH comprises setting unit 110 and load bearing unit 111, and wherein, setting unit 110 is used to MCCH that RNTI is set.Load bearing unit 111 is for being carried on the control information of the described MCCH that comprises described RNTI in non-Catalog Search region or the Catalog Search region of subframe control domain; Or, the control information of the described MCCH that comprises described RNTI is carried in the CCE within the scope of agreement; Or, the control information of the described MCCH that comprises described RNTI is used to the Downlink Control Information DCI form of arranging.
Those skilled in the art are to be understood that, in MBMS shown in Figure 11 of the present invention system, the bogey of the control information of MCCH is that bearing method for realizing the control information of MCCH in the MBMS system shown in Fig. 6 designs, the practical function of the each processing unit in Figure 11 shown device can be understood with reference to the associated description in the method shown in Fig. 6, the function of each unit can realize by the program running on processor, also can realize by corresponding logical circuit.
Figure 12 is the composition structural representation that in MBMS system of the present invention, MCCH upgrades the bogey of the control information of indication information, as shown in figure 12, in MBMS system of the present invention, the bogey of the control information of MCCH renewal indication information comprises setting unit 120 and load bearing unit 121, wherein, setting unit 120 is used to MCCH to upgrade indication information RNTI is set.Load bearing unit 121 is carried on non-Catalog Search region or the Catalog Search region of subframe control domain for the described MCCH that comprises described RNTI being upgraded to the control information of indication information; Or the control information of the described MCCH that comprises described RNTI being upgraded to indication information is carried in the CCE within the scope of agreement; Or, the described MCCH that comprises described RNTI is upgraded to the control information of indication information and uses the Downlink Control Information DCI form of arranging.
Those skilled in the art are to be understood that, in MBMS shown in Figure 12 of the present invention system, to upgrade the bogey of the control information of indication information be that the bearing method that upgrades the control information of indication information for realizing MCCH in the MBMS system shown in Fig. 7 designs to MCCH, the practical function of the each processing unit in Figure 12 shown device can be understood with reference to the associated description in the method shown in Fig. 7, the function of each unit can realize by the program running on processor, also can realize by corresponding logical circuit.
Figure 13 is the composition structural representation that in MBMS of the present invention system, MCCH and MCCH upgrade the receiving system of the control information of indication information, as shown in figure 13, in MBMS system of the present invention, the receiving system of the control information of MCCH and MCCH renewal indication information comprises acquiring unit 130 and receiving element 131, wherein, acquiring unit 130 upgrades the RNTI of indication information and the bearing mode of control information thereof for obtaining MCCH and MCCH.Receiving element 131 is for utilizing described RNTI to receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of the control information of the described MCCH of carrying and MCCH renewal indication information.Wherein, the RNTI of described MCCH and MCCH renewal indication information can be identical, now, the bearing mode that described MCCH and MCCH upgrade the control information of indication information is: described MCCH and MCCH upgrade in the control information of indication information one and be carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain; Or, in a CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements; Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, the Downlink Control Information DCI form difference that the control information of described MCCH and MCCH renewal indication information is used; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
The RNTI of described MCCH and MCCH renewal indication information can be different, now, the bearing mode that described MCCH and MCCH upgrade the control information of indication information is: described MCCH and MCCH upgrade in the control information of indication information one and be carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain; Or, in a CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements; Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of same subframe; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
When MCCH and MCCH upgrade the RNTI difference of indication information, the control information that carrying MCCH and MCCH upgrade indication information is not limited to above-mentioned bearing mode.
Those skilled in the art are to be understood that, in MBMS shown in Figure 13 of the present invention system, to upgrade the receiving system of the control information of indication information be that the reception sending method of upgrading the control information of indication information for realizing MCCH and MCCH in the MBMS system shown in Fig. 8 designs for MCCH and MCCH, the practical function of the each processing unit in Figure 13 shown device can be understood with reference to the associated description in the method shown in Fig. 8, the function of each unit can realize by the program running on processor, also can realize by corresponding logical circuit.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.

Claims (5)

1. MCCH and MCCH upgrade a bearing method for the control information of indication information, it is characterized in that, comprising:
For multimedia broadcast multi-broadcasting business control channel MCCH and MCCH upgrade indication information, identical Radio Network Temporary Identifier RNTI is set;
Described RNTI helps mobile terminal to find that at the control domain of subframe MCCH or MCCH upgrade the control information of indication information, and described MCCH or MCCH upgrade indication information and carried by PDCCH;
Described control information comprises that MCCH and MCCH upgrade the scheduling beared information of indication information; And
The described MCCH that comprises described RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain; Or, by a control channel unit CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
2. method according to claim 1, it is characterized in that, when different DCI forms is used in the control information of described MCCH and MCCH renewal indication information, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, is specially:
The described MCCH that comprises described RNTI and MCCH are upgraded to the non-Catalog Search region that in the control information of indication information one is carried on subframe control domain, another control information is carried on the Catalog Search region of subframe control domain;
Or, by a control channel unit CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements;
Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes.
3. MCCH and MCCH upgrade a method of reseptance for the control information of indication information, it is characterized in that, comprising:
According to the bearing mode of the control information of MCCH and MCCH renewal indication information, the described MCCH that utilization configures and MCCH upgrade the Radio Network Temporary Identifier RNTI of indication information, receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of control information that carries described MCCH and MCCH renewal indication information;
Described RNTI helps mobile terminal to find that at the control domain of subframe MCCH or MCCH upgrade the control information of indication information, and described MCCH or MCCH upgrade indication information and carried by PDCCH;
Described control information comprises that MCCH and MCCH upgrade the scheduling beared information of indication information; Wherein,
The RNTI that described MCCH and MCCH upgrade indication information is identical; The bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or, in a control channel unit CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
4. MCCH and MCCH upgrade a bogey for the control information of indication information, it is characterized in that, comprising:
Setting unit, is used to MCCH and MCCH to upgrade indication information identical Radio Network Temporary Identifier RNTI is set; And
Load bearing unit, is carried on the non-Catalog Search region of subframe control domain for the described MCCH that comprises described RNTI and MCCH being upgraded to of control information of indication information, another control information is carried on the Catalog Search region of subframe control domain; Or, by a control channel unit CCE who is carried within the scope of agreement in the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the CCE within the scope of different agreements; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms; Or, the control information of the described MCCH that comprises described RNTI and MCCH renewal indication information is carried on respectively in the control domain of different subframes;
Described RNTI helps mobile terminal to find that at the control domain of subframe MCCH or MCCH upgrade the control information of indication information, and described MCCH or MCCH upgrade indication information and carried by PDCCH;
Described control information comprises that MCCH and MCCH upgrade the scheduling beared information of indication information.
5. MCCH and MCCH upgrade a receiving system for the control information of indication information, it is characterized in that, comprising:
Acquiring unit, upgrades the Radio Network Temporary Identifier RNTI of indication information and the bearing mode of control information thereof for obtaining MCCH and MCCH; And
Receiving element, for utilizing described RNTI to receive the control information of described MCCH and MCCH renewal indication information on the running time-frequency resource of the control information of the described MCCH of carrying and MCCH renewal indication information;
Described RNTI helps mobile terminal to find that at the control domain of subframe MCCH or MCCH upgrade the control information of indication information, and described MCCH or MCCH upgrade indication information and carried by PDCCH;
Described control information comprises that MCCH and MCCH upgrade the scheduling beared information of indication information; Wherein,
The RNTI that described MCCH and MCCH upgrade indication information is identical, and the bearing mode that described MCCH and MCCH upgrade the control information of indication information is:
Described MCCH and MCCH upgrade in the control information of indication information one and are carried on the non-Catalog Search region of subframe control domain, and another control information is carried on the Catalog Search region of subframe control domain;
Or, in a control channel unit CCE who is carried within the scope of agreement in the control information of described MCCH and MCCH renewal indication information; Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the CCE within the scope of different agreements;
Or the control information that described MCCH and MCCH upgrade indication information is carried in the control domain of subframe, described MCCH and MCCH upgrade the control information of indication information and use different Downlink Control Information DCI forms;
Or the control information that described MCCH and MCCH upgrade indication information is carried on respectively in the control domain of different subframes.
CN200910081887.0A 2009-04-14 2009-04-14 Method and device for bearing and receiving control information of MCCH (Multipoint Control Channel) and MCCH updating indication information Expired - Fee Related CN101867880B (en)

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