CN101841773B - Method and terminal for indicating resources - Google Patents
Method and terminal for indicating resources Download PDFInfo
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- CN101841773B CN101841773B CN200910127185.1A CN200910127185A CN101841773B CN 101841773 B CN101841773 B CN 101841773B CN 200910127185 A CN200910127185 A CN 200910127185A CN 101841773 B CN101841773 B CN 101841773B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a method and a terminal for indicating resources. The method comprises the steps that: the terminal acquires position information of a multicast control channel radio network temporary identity MC-RNTI which is used for indicating resource allocation of a multicast control channel on a broadcast control channel; and the terminal acquires the MC-RNTI in a physical downlink control channel according to the position information of the MC-RNTI. By the information indication of the MC-RNTI, the terminal can acquire the resource position of an MCCH in the single-cell or multi-cell mode so as to acquire control information related to a multicast service, simplify the complexity of a system, reduce power consumption of the terminal and improve the service efficiency of an MBMS.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of resource indicating method and terminal.
Background technology
At present, at multimedia broadcast multi-broadcasting business (Multimedia Broadcast MulticastService, referred to as MBMS) communication in, point-to-multipoint multicast control channel (MulticastControl Channel, referred to as MCCH) for transmitting chain of command information between terminal and network.On MCCH, can be provided in the structurally interrelated information of the MBMS in specific cell and network, the relevant information of the current MBMS opening and sign thereof and the relevant information of service bearer and adjacent cell etc. can also be provided.
In correlation technique, MCCH can adopt hierarchy, be divided into master control channel (Primary MCCH, referred to as P-MCCH), and auxiliary control channel (SecondaryMCCH, referred to as S-MCCH), wherein, common information in P-MCCH carrying MBMS, for example, the schedule information of general information, S-MCCH etc.; S-MCCH carries individual information, for example, and business information etc.Broadcast Control Channel (Broadcast ControlChannel, referred to as BCCH) is indicated the configuration (one of them P-MCCH is for single cell pattern, and another P-MCCH is for many cell patterns) of one or two P-MCCH.In the P-MCCH of many cell patterns, further carry the scheduling configuration information of S-MCCH.The P-MCCH of single cell pattern is in the upper transmission of DSCH Downlink Shared Channel (Downlink-Shared Channel, referred to as DL-SCH), and the P-MCCH of many cell patterns is mapped to the upper transmission of Multicast Channel (Multicast Channel, referred to as MCH).In many cell transmission, if MCCH does not adopt hierarchy, and the broadcast multi-broadcasting based on Single Frequency Network (Multicast/Broadcast over Single Frequency Network, referred to as MBSFN) of not considering MCCH merges, and MCCH can transmit on DL-SCH.
MCCH is extremely important in MBMS communication, in order to realize MBMS communication, first needs to obtain business in MCCH and the relevant information of carrying, and obtains the positional information that first above-mentioned informational needs obtains MCCH, i.e. the mapping of MCCH in physical resource.In order to guarantee terminal, obtain fast and effectively the information in MCCH, the relevant channel architecture of the careful design of needs.Scheduling configuration design for MCCH at present does not also provide concrete solution.
Summary of the invention
Consider the problem that terminal in correlation technique can not Obtaining Accurate MCCH positional information and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of resource indicating method and terminal, to solve the problems referred to above that exist in correlation technique.
To achieve these goals, according to an aspect of the present invention, provide a kind of resource indicating method, be used to indicate the resource distribution of multicast control channel.
Resource indicating method according to the present invention comprises: terminal is obtained the positional information of multicast control channel Radio Network Temporary Identifier MC-RNTI in Broadcast Control Channel, and wherein, MC-RNTI is used to indicate the resource distribution of multicast control channel; Terminal, according to the positional information of MC-RNTI, is obtained MC-RNTI in Physical Downlink Control Channel.
Preferably, after terminal is obtained MC-RNTI, said method further comprises: terminal, according to the indication of MC-RNTI, is obtained the information of multicast control channel on Physical Downlink Shared Channel.
Preferably, terminal is after obtaining the information of multicast control channel, and said method further comprises: terminal is according to the service related information of the acquisition of information multimedia broadcast multi-broadcasting business of multicast control channel.
Preferably, the positional information that terminal is obtained MC-RNTI comprises: terminal is obtained the positional information of MC-RNTI in Broadcast Control Channel by system message, and wherein, the positional information of MC-RNTI is set in advance in system message by system.
Preferably, before terminal is obtained MC-RNTI in Physical Downlink Control Channel, said method further comprises: system is arranged on MC-RNTI in the Downlink Control Information of Physical Downlink Control Channel.
Preferably, terminal is obtained MC-RNTI and is comprised in physical channel: in the scope of terminal positional information indication in physical channel, carry out blind check and decoding, until obtain MC-RNTI.
Preferably, MC-RNTI positional information is used to indicate the positional information of MC-RNTI in physical channel.
Preferably, the resource distribution of the multicast control channel of MC-RNTI indication at least comprises: the Physical Downlink Shared Channel of the subframe at multicast control channel place, the multicast control channel positional information in Physical Downlink Shared Channel.
To achieve these goals, according to an aspect of the present invention, provide a kind of terminal.
Terminal according to the present invention comprises: the first acquisition module, and for obtain the positional information of multicast control channel Radio Network Temporary Identifier MC-RNTI in Broadcast Control Channel, wherein, MC-RNTI is used to indicate the resource distribution of multicast control channel; The second acquisition module for according to the positional information of MC-RNTI, obtains MC-RNTI in Physical Downlink Control Channel.
Preferably, above-mentioned terminal can further include: the 3rd acquisition module for according to the indication of MC-RNTI, obtains the information of multicast control channel on Physical Downlink Shared Channel; The 4th acquisition module, for according to the service related information of the acquisition of information multimedia broadcast multi-broadcasting business of multicast control channel.
By means of technical scheme of the present invention, by MC-RNTI is set, solved the problem that terminal in correlation technique can not Obtaining Accurate MCCH positional information, make terminal can Dan community or many cell transmission pattern under obtain the resource location of MCCH, thereby obtain the relevant control information of multicast service, simplified system complexity, reduced power consumption of terminal, improved MBMS efficiency of service.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in the specification write, claims and accompanying drawing.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is according to the mapping relations schematic diagram between descending logic channel, descending transmission channel and the down physical channel of the embodiment of the present invention;
Fig. 2 is according to the flow chart of the resource indicating method of the embodiment of the present invention;
Fig. 3 is according to the block diagram of the terminal of the embodiment of the present invention.
Embodiment
Functional overview
As mentioned above, problem for the MCCH channel resource configuration in multi-casting communication, the embodiment of the present invention provides the method for a kind of indexed resource position, in technical scheme of the present invention, be provided with a kind of multicast control channel Radio Network Temporary Identifier (MCCH-RadioNetwork Temporary Identifier, referred to as MC-RNTI), this sign is used to refer to the resource distribution of MCCH, first terminal is passed through system message (SystemInformation Block on BCCH, referred to as SIB) obtain the positional information of relevant MC-RNTI in frame/subframe, then according to the MC-RNTI information detecting, on PDSCH, obtain the content of MCCH on PDCCH.By the method, terminal can be obtained the resource allocation information of MCCH, and according to the content of MCCH, obtains the concrete service related information of MBMS.It should be noted that, in the following description, unified with MCCH, represent control channel, if adopt hierarchy, MCCH below refers in particular to P-MCCH.
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
In the following description, for the object of explaining, a plurality of specific details have been described, to provide thorough understanding of the present invention.Yet, obviously, in the situation that there is no these specific detail, also can realize the present invention, in addition, in the situation that do not deviate from the spirit and scope that claims are illustrated, in following embodiment and embodiment, obtain each details and can carry out various combinations.
Embodiment of the method
According to embodiments of the invention, a kind of resource indicating method is provided, before the embodiment of the present invention is described, first relevant channel architecture is described, Fig. 1 is the descending logic channel according to the embodiment of the present invention, descending transmission channel, and the mapping relations schematic diagram between down physical channel, as shown in Figure 1, in the mono-cell pattern of MBMS, MCCH is mapped on DL-SCH, DL-SCH is mapped to Physical Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH) on, and, the resource distribution of PDSCH can be according to Physical Downlink Control Channel (Physical DownlinkControl Channel, referred to as PDCCH) indication obtain.For many cell transmission pattern, if do not consider that the MBSFN of MCCH merges, MCCH can transmit on DL-SCH, therefore can adopt the identical scheme in Yu Dan community.
Fig. 2 is according to the flow chart of the resource indicating method of the embodiment of the present invention, before the processing of carrying out as shown in Figure 2, first, network side need to be put into location message corresponding to MC-RNTI related system message (SIB), MC-RNTI message is placed on to Downlink Control Information (the Downlink Control Information of PDCCH, referred to as DCI) in, and by MCCH Content placement in PDSCH corresponding to MC-RNTI message.
Below in conjunction with accompanying drawing, the resource indicating method of the embodiment of the present invention is described.As shown in Figure 2, comprise following processing (step S202-step S206):
Step S202, in the SIB of terminal on BCCH, obtain the positional information of MC-RNTI, wherein, the positional information of MC-RNTI is used to indicate the position of MC-RNTI in frame/subframe, MC-RNTI is used to indicate the resource distribution of MCCH, in actual applications, the resource distribution of the MCCH of MC-RNTI indication can at least comprise: the PDSCH of the subframe at MCCH place, the MCCH positional information in PDSCH.
Step S204, terminal, according to the positional information of MC-RNTI, is obtained MC-RNTI in PDCCH; Particularly, terminal can be carried out blind check in the scope of positional information indication, until obtain MC-RNTI.
Step S206, terminal, according to the indication of MC-RNTI, is obtained the information of MCCH on PDSCH, that is and, the PDSCH content corresponding to MC-RNTI (MCCH information) decoding is resolved.
After step S206, terminal just can be according to the business information of the acquisition of information MBMS of MCCH.
Below in conjunction with example, technique scheme of the present invention is elaborated.
Example 1
Step 1, arranges MC-RNTI=0xFFFC, and the specific definition numerical value of MC-RNTI is as shown in table 1; Network side (system) is arranged on MC-RNTI information in the DCI of subframe PDCCH and (in the relevant SIB of concrete placement location on BCCH, indicates), and the particular content of MCCH is arranged in PDSCH corresponding to MC-RNTI message;
Step 2, terminal reads the relevant SIB in BCCH, and by this SIB, obtains the positional information (being the positional information of above-mentioned MC-RNTI) of MC-RNTI and corresponding MCCH;
Step 3, according to the positional information of MC-RNTI and corresponding MCCH, terminal is carried out blind check and is done decoding on relevant sub-frame PDCCH, if the RNTI detecting is MC-RNTI, the message corresponding according to MC-RNTI, can obtain the position of MCCH in PDSCH, and receive PDSCH in relevant position, and the MCCH obtaining after decoding is reported to higher-layer protocols;
Step 4, higher-layer protocols, after receiving the MCCH information of terminal transmission, transforms (being converted into the information that terminal can be identified) accordingly to this information, and the MCCH information after transforming is sent to terminal;
Step 5, terminal obtains the business information of MBMS and further processes according to MCCH information.
Table 1
Example 2
Step 1, according to the standard of third generation mobile partner plan (3rd Generationpartnership project, referred to as 3GPP), MBMS bearer service can be divided into two classes: download class (Download) and stream class (Stream).In order to distinguish this two classes business, the search speed of increasing terminal, networking side defines respectively two RNTI:MC
d-RNTI and MC
s-RNTI, wherein, MC
dthe corresponding downloading business of-RNTI, MC
sthe corresponding stream class service of-RNTI;
Step 2, network side is by MC
d/s-RNTI information is arranged in the DCI of subframe PDCCH and (in the relevant SIB of concrete placement location on BCCH, indicates), and corresponding MCCH particular content is arranged on MC
d/sin PDSCH corresponding to-RNTI message;
Step 3, terminal reads the relevant SIB in BCCH, and obtains M by this SIB
d/sthe positional information of-RNTI and corresponding MCCH;
Step 4, according to MC
d/sthe positional information of-RNTI and corresponding MCCH, terminal is carried out blind check and is done decoding on relevant sub-frame PDCCH, if the RNTI detecting is MC
d-RNTI, illustrate MCCH corresponding be downloading business, if the RNTI detecting is MC
s-RNTI, illustrate MCCH corresponding be stream class service, terminal determines whether further to receive the content of MCCH as required;
Step 5, if the RNTI detecting is MC
d/s-RNTI, terminal is according to MC
d/sthe message that-RNTI is corresponding, can obtain the position of MCCH in PDSCH, and receives PDSCH in relevant position, reports higher-layer protocols after decoding;
Step 6, terminal obtains the business information of MBMS and carries out next step processing according to MCCH content.
It should be noted that, MCCH message adopts periodically and sends, terminal, in order to reduce power consumption, needn't all detect the content of MCCH at every turn, can when MCCH content changes, (network side is by the indication of notice (Notification) signaling) read again.
By above-mentioned processing, make terminal under the transmission mode of Dan community (Huo Duo community), to obtain the resource location of MCCH, thereby obtain the relevant control information of multicast service.
Device embodiment
According to embodiments of the invention, a kind of terminal is provided, Fig. 3 is according to the block diagram of the terminal of the embodiment of the present invention, as shown in Figure 3, according to the terminal of the embodiment of the present invention, comprises the first acquisition module 30, the second acquisition module 32, the 3rd acquisition module 34, the 4th acquisition module 36.
Before the modules of end side is described, first the operation of system side (network side) is described, first, network side need to be put into location message corresponding to MC-RNTI related system message (SIB), and MC-RNTI message is placed in the DCI of PDCCH, finally, by MCCH Content placement in PDSCH corresponding to MC-RNTI message.Below the modules of end side is elaborated.
Particularly, first, the first acquisition module 30 of end side obtains the positional information of MC-RNTI in need to the SIB on BCCH, wherein, MC-RNTI positional information is used to indicate the positional information in frame/subframe of MC-RNTI, and MC-RNTI is used to indicate the resource distribution of MCCH; In actual applications, the resource distribution of the MCCH of MC-RNTI indication can at least comprise: the PDSCH of the subframe at MCCH place, the MCCH positional information in PDSCH.
Subsequently, the second acquisition module 32, according to the positional information of MC-RNTI, obtains MC-RNTI in PDCCH; In actual applications, the second acquisition module 32 need to carry out blind check in the scope of positional information indication, until obtain MC-RNTI.
At the second acquisition module 32, obtained after MC-RNTI, the 3rd acquisition module 34 is mainly used in the indication according to MC-RNTI, obtains the information of MCCH on PDSCH, that is, the PDSCH content corresponding to MC-RNTI (MCCH information) decoding is resolved.Finally, by the 4th acquisition module 36 according to the business information of the acquisition of information MBMS of MCCH.
It should be noted that, in the situation that do not deviate from the spirit and scope that claims are illustrated, can carry out various changes and combination to above-mentioned modules.For example, the first acquisition module 30, the second acquisition module 32, the 3rd acquisition module 34, the 4th acquisition module 36, because its function has consistency, therefore can be unified setting.
In sum, by means of technical scheme of the present invention, by MC-RNTI is set, solved the problem that terminal in correlation technique can not Obtaining Accurate MCCH positional information, make terminal obtain the resource location of MCCH under can the transmission mode of Huo Duo community, Dan community, thereby obtain the relevant control information of multicast service, simplified system complexity, reduced power consumption of terminal, improved MBMS efficiency of service.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a resource indicating method, is used to indicate the resource distribution of multicast control channel, it is characterized in that, described method comprises:
Terminal is obtained the positional information of multicast control channel Radio Network Temporary Identifier MC-RNTI in Broadcast Control Channel, wherein, described MC-RNTI is used to indicate the resource distribution of described multicast control channel, and described MC-RNTI positional information is used to indicate the positional information of described MC-RNTI in Physical Downlink Control Channel;
Described terminal, according to the positional information of described MC-RNTI, is obtained described MC-RNTI in described Physical Downlink Control Channel;
Wherein, described terminal is obtained described MC-RNTI and is comprised in described Physical Downlink Control Channel: described terminal is carried out blind check and decoding in the scope of the indication of positional information described in described Physical Downlink Control Channel, until obtain described MC-RNTI.
2. method according to claim 1, is characterized in that, after described terminal is obtained described MC-RNTI, described method further comprises:
Described terminal, according to the indication of described MC-RNTI, is obtained the information of described multicast control channel on Physical Downlink Shared Channel.
3. method according to claim 2, is characterized in that, described terminal is after obtaining the information of described multicast control channel, and described method further comprises:
Described terminal is according to the service related information of the acquisition of information multimedia broadcast multi-broadcasting business of described multicast control channel.
4. method according to claim 1, is characterized in that, the positional information that described terminal is obtained described MC-RNTI comprises:
Described terminal is obtained the positional information of described MC-RNTI in described Broadcast Control Channel by system message, wherein, the positional information of described MC-RNTI is set in advance in described system message by system.
5. method according to claim 1, is characterized in that, before described terminal is obtained described MC-RNTI in Physical Downlink Control Channel, described method further comprises:
System is arranged on described MC-RNTI in the Downlink Control Information of described Physical Downlink Control Channel.
6. according to the method described in any one in claim 1 to 5, it is characterized in that, the resource distribution of the described multicast control channel of described MC-RNTI indication at least comprises: the Physical Downlink Shared Channel at described multicast control channel place, the positional information of described multicast control channel in described Physical Downlink Shared Channel.
7. a terminal, is characterized in that, comprising:
The first acquisition module, for obtain the positional information of multicast control channel Radio Network Temporary Identifier MC-RNTI in Broadcast Control Channel, wherein, described MC-RNTI is used to indicate the resource distribution of multicast control channel, and described MC-RNTI positional information is used to indicate the positional information of described MC-RNTI in Physical Downlink Control Channel;
The second acquisition module, be used for according to the positional information of described MC-RNTI, in described Physical Downlink Control Channel, obtain described MC-RNTI, wherein, described terminal is obtained described MC-RNTI and is comprised in described Physical Downlink Control Channel: described terminal is carried out blind check and decoding in the scope of the indication of positional information described in described Physical Downlink Control Channel, until obtain described MC-RNTI.
8. terminal according to claim 7, is characterized in that, described terminal further comprises:
The 3rd acquisition module for according to the indication of described MC-RNTI, obtains the information of described multicast control channel on Physical Downlink Shared Channel;
The 4th acquisition module, for according to the service related information of the acquisition of information multimedia broadcast multi-broadcasting business of described multicast control channel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127185.1A CN101841773B (en) | 2009-03-16 | 2009-03-16 | Method and terminal for indicating resources |
| PCT/CN2009/073423 WO2010105461A1 (en) | 2009-03-16 | 2009-08-21 | Resource indication method and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127185.1A CN101841773B (en) | 2009-03-16 | 2009-03-16 | Method and terminal for indicating resources |
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| CN101841773A CN101841773A (en) | 2010-09-22 |
| CN101841773B true CN101841773B (en) | 2014-12-10 |
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| CN200910127185.1A Expired - Fee Related CN101841773B (en) | 2009-03-16 | 2009-03-16 | Method and terminal for indicating resources |
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| WO (1) | WO2010105461A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101984719B (en) * | 2010-11-17 | 2013-01-23 | 华中科技大学 | Resource reuse method and equipment for machine-to-machine (M2M) downlink control information |
| EP2761796A4 (en) | 2011-09-30 | 2015-07-15 | Intel Corp | Multicast service using unicast subframe |
| CN103096251B (en) * | 2011-11-07 | 2017-02-08 | 上海中兴软件有限责任公司 | Cluster business conversional wireless resource controlling information scheduling method and system |
| US8811258B2 (en) * | 2012-04-13 | 2014-08-19 | Intel Corporation | Enhanced local communications in mobile broadband networks |
| CN104113914B (en) | 2013-04-17 | 2019-04-19 | 中兴通讯股份有限公司 | A kind of configuration of Physical Multicast Channel, method of sending and receiving and system |
| AU2015231128A1 (en) * | 2014-03-19 | 2016-10-06 | Interdigital Patent Holdings, Inc. | Method and apparatus for system information block (SIB) acquisition for wireless transmit/receive units (WTRUS) in non-CE and coverage enhanced (CE) modes |
| CN105992158B (en) | 2015-02-13 | 2020-09-08 | 中兴通讯股份有限公司 | Scheduling method and device for single-cell Multimedia Broadcast Multicast Service (MBMS) |
| EP3337198B1 (en) | 2015-08-14 | 2021-09-22 | Huawei Technologies Co., Ltd. | Multicast service reading and sending method and relevant device |
| CN107645742A (en) * | 2016-07-20 | 2018-01-30 | 普天信息技术有限公司 | A kind of car exchanges the transmission method of V2X business with the information in the external world |
| CN106454901A (en) | 2016-11-04 | 2017-02-22 | 维沃移动通信有限公司 | Detecting method and indicating method for downlink control channel, terminal and network equipment |
| CN110011714B (en) * | 2018-01-05 | 2021-06-15 | 维沃移动通信有限公司 | Signal receiving method, signal sending method, user equipment and network equipment |
| KR20210044230A (en) * | 2018-08-03 | 2021-04-22 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Resource allocation method, terminal device and network device |
| EP3883311A4 (en) | 2018-11-28 | 2022-09-28 | Beijing Xiaomi Mobile Software Co., Ltd. | Downlink control signaling detection method and apparatus, and system |
| CN113965890B (en) * | 2020-07-15 | 2023-03-24 | 大唐移动通信设备有限公司 | Transmission method and device of multicast service data |
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| Publication number | Publication date |
|---|---|
| WO2010105461A1 (en) | 2010-09-23 |
| CN101841773A (en) | 2010-09-22 |
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