CN107135486A - Multicast or the transmission method and device of multicast service - Google Patents
Multicast or the transmission method and device of multicast service Download PDFInfo
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- CN107135486A CN107135486A CN201610112937.7A CN201610112937A CN107135486A CN 107135486 A CN107135486 A CN 107135486A CN 201610112937 A CN201610112937 A CN 201610112937A CN 107135486 A CN107135486 A CN 107135486A
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- multicast service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of multicast or the transmission method and device of multicast service, the base station for sending multicast or multicast service, this method include：Send the configuration information for indicating uplink feedback channel；The signal in the uplink feedback channel is detected, to judge whether target terminal user, the target terminal user refers to the user terminal or user terminal interested in the multicast or multicast service for receiving the multicast or multicast service；Wherein, the target terminal user sends feedback information according to the configuration information in the uplink feedback channel.Whether the present invention enables to base station to know in time currently has user terminal receiving multicast or multicast service or interested in it.
Description
Technical field
The present invention relates to the transmission method of multicast or multicasting technology, more particularly to a kind of multicast or multicast service
And device.
Background technology
Long Term Evolution (LTE, Long Term Evolution) system in addition to traditional data transfer mode,
Multicast or multicast mode are also introduced, multiple user terminal (User that now base station can be into cell
Equipment, UE) simultaneous transmission data, such as multimedia broadcast multicast (Multimedia Broadcast
Multicast Service, MBMS) business, usual MBMS region includes multiple cells, many
In individual cell, it is configured with the Radio Resource of point-to-multipoint transmission so that all MBMSs that have subscribed
User terminal can receive identical simultaneously and send signal.Radio Access Network is without the movement to user terminal
It is tracked, user can receive MBMS without notifying network.
In 3GPP Release 13, single cell point is also introduced to multiple spot (Single Cell Point To
Multipoint, SC-PTM) business, it is allowed to multicast or multicast service are realized in single subdistrict.In this feelings
Under condition, user terminal receives multicast or multicast service without notice network.
Using such scheme, base station can not know whether that user terminal receives or needs to receive multicast
Or multicast service, thus multicast or multicast service are constantly sent, this is likely to result in the wave of Radio Resource
Take.
The content of the invention
Present invention solves the technical problem that it is to provide the transmission method and device of a kind of multicast or multicast service,
Whether enable to base station to know in time currently has user terminal receiving multicast or multicast service or right
Its is interested.
In order to solve the above technical problems, the embodiment of the present invention provide it is a kind of broadcast or multicast service transmission method,
Base station for sending multicast or multicast service, including：Send the configuration information for indicating uplink feedback channel；
The signal in the uplink feedback channel is detected, to judge whether target terminal user, the target
User terminal refers to receive the user terminal of the multicast or multicast service or to the multicast or group
Broadcast business user terminal interested；Wherein, the target terminal user according to the configuration information in institute
State and feedback information is sent in uplink feedback channel.
Alternatively, the signal in the uplink feedback channel is detected, to judge whether that targeted customer is whole
End includes：If the power of the signal exceedes pre-determined threshold, judge that the target terminal user is present；
Otherwise judge that the target terminal user is not present.
Alternatively, methods described also includes：The multicast or group are adjusted according to the testing result of the signal
Broadcast the transmission of business.
Alternatively, the configuration information is sent by system message or multicast control channel.
Alternatively, the multicast control channel be multimedia broadcast multi-broadcasting business in multicast control channel or
Person's single cell point is to the multicast control channel in multipoint service.
Alternatively, the configuration information includes：The sub-frame information and frequency domain information of the uplink feedback channel.
Alternatively, the configuration information also includes one or more of：The signal lattice of the feedback information
Formula and power configuration parameter.
Alternatively, single target user terminal sends the transmission power of the feedback information less than predetermined power
Or the offset of path loss is less than predesigned compensation value.
In order to solve the above problems, filled the embodiments of the invention provide a kind of multicast or the transmission of multicast service
Put, the base station for sending multicast or multicast service, including：Configuration information sending module, for sending
Indicate the configuration information of uplink feedback channel；Feedback signal detection module, for detecting the uplink feedback
Signal on channel, to judge whether target terminal user, the target terminal user refers to
Receive the user terminal or use interested in the multicast or multicast service of the multicast or multicast service
Family terminal；Wherein, the target terminal user according to the configuration information in the uplink feedback channel
Send feedback information.
Alternatively, the feedback signal detection module includes：Power detecting unit, it is described for detecting
The power of signal on row feedback channel；Judging unit, if the power of the signal exceedes pre-determined threshold,
Then judge that the target terminal user is present, otherwise judge that the target terminal user is not present.
Alternatively, described device also includes：Business reorganization module, for the detection knot according to the signal
Fruit adjusts the multicast or the transmission of multicast service.
Alternatively, the configuration information sending module sends described by system message or multicast control channel
Configuration information.
Alternatively, the multicast control channel be multimedia broadcast multi-broadcasting business in multicast control channel or
Person's single cell point is to the multicast control channel in multipoint service.
Alternatively, the configuration information includes：The sub-frame information and frequency domain information of the uplink feedback channel.
Alternatively, the configuration information also includes one or more of：The signal lattice of the feedback information
Formula and power configuration parameter.
Alternatively, single target user terminal sends the transmission power of the feedback information less than predetermined power
Or the offset of path loss is less than predesigned compensation value.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
In the embodiment of the present invention, base station sends instruction up anti-in the lump when sending multicast or multicast service
Present the configuration information of channel, receiving the user terminal of the multicast or multicast service or to the multicast or
Multicast service user terminal interested sends feedback letter according to the configuration information in uplink feedback channel
Breath, base station is by detecting the signal in uplink feedback channel, it can be determined that many with the presence or absence of this is received
Broadcast or multicast service or user terminal interested in the multicast or multicast service.Using the present embodiment
Scheme so that base station can adjust multicast or the transmission of multicast service according to detection and judged result, so that
Avoid or reduce the waste of Radio Resource.
Furthermore, the embodiment of the present invention sends the power of feedback information to unique user terminal and carried out
Limitation, makes it below predetermined power, during so as to avoid multiple user terminals from being simultaneously emitted by feedback information
The problem of power on Physical Resource Block shared by uplink feedback channel is excessive, that is, will not be due to multiple
User terminal is simultaneously emitted by feedback information and causes uplink feedback channel congestion.
Brief description of the drawings
Fig. 1 is the flow chart of the transmission method of multicast according to embodiments of the present invention or multicast service；
Fig. 2 is the data flow diagram of the transmission method of multicast according to embodiments of the present invention or multicast service；
Fig. 3 is the structured flowchart of the transmitting device of multicast according to embodiments of the present invention or multicast service.
Embodiment
As stated in the Background Art, in the prior art, either MBMS or SC-PTM business,
Under multicast or multicast service scene, base station can not all know whether user terminal receiving multicast or
Multicast service is interested in it.Thus, when no user terminal receive multicast or multicast service or
When person is interested in it, base station may proceed to send multicast or multicast service, and this can cause the wave of Radio Resource
Take.
In the embodiment of the present invention, base station sends instruction up anti-in the lump when sending multicast or multicast service
Present the configuration information of channel, receiving the user terminal of the multicast or multicast service or to the multicast or
Multicast service user terminal interested sends feedback letter according to the configuration information in uplink feedback channel
Breath, base station is by detecting the signal in uplink feedback channel, it can be determined that many with the presence or absence of this is received
Broadcast or multicast service or user terminal interested in the multicast or multicast service.Using the present embodiment
Scheme so that base station can adjust multicast or the transmission of multicast service according to detection and judged result, so that
Avoid or reduce the waste of Radio Resource.
Furthermore, the embodiment of the present invention sends the power of feedback information to unique user terminal and carried out
Limitation, makes it below predetermined power, during so as to avoid multiple user terminals from being simultaneously emitted by feedback information
The problem of power on Physical Resource Block shared by uplink feedback channel is excessive, that is, will not be due to multiple
User terminal is simultaneously emitted by feedback information and causes uplink feedback channel congestion.
It is understandable to enable above-mentioned purpose, feature and beneficial effect of the invention to become apparent, with reference to
Accompanying drawing is described in detail to the specific embodiment of the present invention.
With reference to Fig. 1, Fig. 1 shows the multicast of the present embodiment or the transmission method of multicast service, and this method can
With suitable for the base station in the base station of multicast or multicast service, such as LTE network can be sent.Further
For, this method may comprise steps of：
Step S11, sends the configuration information for indicating uplink feedback channel；
Step S12, detects the signal in the uplink feedback channel, to judge whether that targeted customer is whole
End, the target terminal user refers to the user terminal or right for receiving the multicast or multicast service
The multicast or multicast service user terminal interested.
Wherein, the target terminal user is sent according to the configuration information in the uplink feedback channel
Feedback information.
In addition, detection uplink feedback channel on signal after, can also according to testing result adjust multicast
Or the transmission of multicast service.Preset for example, the power of the signal on uplink feedback channel is detected exceedes
During thresholding, show there is user terminal receiving multicast or multicast service or to the multicast or multicast service
It is interested, it can now maintain multicast or the transmission of multicast service；On uplink feedback channel is detected
When the power of signal is less than the pre-determined threshold, show that no user terminal is receiving multicast or multicast service
Or it is interested in the multicast or multicast service, it can now reduce multicast or the transmission of multicast service even
Do not send, so as to save Radio Resource.
Below by taking MBMS as an example, it is described in detail with reference to Fig. 2.
In step s 201, base station 20 sends MBMS.The MBMS can be in multicast
Transmitted on channel (Multicast Channel, MCH).Wherein, there is the logic channel of following two types
It can be multiplexed and map to Multicast Channel：Logical Traffic Channels (Multicast Traffic Channel,
MTCH), for carrying some MBMS data；Multicast control channel (Multicast Control
Channel, MCCH), control information, example necessary to for carrying one or more MBMSs
Such as include subframe distribution, the modulating-coding form of each Logical Traffic Channels.Furthermore, if
Need to transmit multiple MBMSs, then need to configure multiple Logical Traffic Channels.
Base station 20 can indicate multicast control in system message (System Information Block, SIB)
The relevant information of channel processed, such as repetition period, modification cycle, sub-frame configuration.User terminal passes through
The information on multicast control channel is received, the schedule information of MBMS interested can be known, from
And MBMS interested can be received in the subframe that multicast control channel is indicated.MBMS
It can for example be come using Temporary Mobile Group Identity (TMGI, Temporary Mobile Group Identity)
Distinguish.
Base station 20 can send the configuration for indicating uplink feedback channel in the lump when sending MBMS
Information.For example, base station 20 can pass through system message (SIB) or multicast control channel (MCCH)
To send the configuration information for indicating uplink feedback channel.Different MBMSs can have different match somebody with somebody
Confidence ceases, and in other words, different MBMSs can have different uplink feedback channels.
The configuration information that base station 20 is sent can include：The sub-frame information of uplink feedback channel, such as subframe
Position, System Frame Number etc.；The positional information of the frequency domain information of uplink feedback channel, such as Physical Resource Block
Deng.In addition, the configuration information can also include：The signal format for the feedback information that user terminal is sent,
The generating mode of such as signal；User terminal sends power configuration parameter during feedback information, for example, launch
The power compensating value of power or path loss.Wherein, signal format and power configuration parameter be it is optional,
It can also be set using the predefined mode of agreement.
In step S202, MBMS or user interested in MBMS are being received
Terminal (being also known as target terminal user, such as user terminal interested in TGMI1 business herein) 21
The instruction of the configuration information sent according to base station 20, in the corresponding uplink feedback channel of TGMI1 business
Send feedback information.Wherein, the content that the feedback information that different user terminals 21 is sent is included can phase
Together, can also be different.
Furthermore, can be with for the user terminal 21 in connection status, during its send feedback information
Using the up lead (TA) under current connection state；For the user terminal 21 of idle condition, its
Up lead can be set to 0 during send feedback information.Or, no matter user terminal 21 is to be in
Connection status or idle condition, 0 can be both configured in send feedback information by up lead.
In step S203, base station 20 can detect the signal in uplink feedback channel, be judged with this
With the presence or absence of target terminal user.For example, when the signal power in uplink feedback channel exceedes pre-determined threshold
When, it can be determined that there is target terminal user；When the signal power in uplink feedback channel is less than pre- gating
In limited time, it can be determined that target terminal user is not present.
As a preferred embodiment, single target user terminal can be controlled when sending feedback information
Its transmission power is made (such as to send PUCCH power less than predetermined power or send PUSCH work(
Rate), or the offset that can be lost with control path with less than predesigned compensation value (as send PUCCH when
The path loss offset of use sends the path loss offset used during PUSCH).Thus, when
There are multiple target terminal users and (correspond to identical in identical uplink feedback channel simultaneously in some cell
Physical Resource Block) on when sending feedback information, the signal power in uplink feedback channel can be avoided excessive
And cause congestion.More specifically, physical uplink control channel (Physical in the prior art
Uplink Control Channel, PUCCH) using the compensation of complete power back-off, namely path loss
It is worth for 1, and Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH) is adopted
Compensated with Partial Power, namely the offset of path loss is 0.4,0.5 etc., and path in the present embodiment
The offset of loss, which can be preferably less than, is equal to 0.1, such as can be 0.1 or 0.05.
In step S204, according to the signal detecting result in uplink feedback channel, MBMS industry is adjusted
The transmission of business.If for example, the result that detection judges is that target terminal user is not present, namely do not used
Family terminal is receiving MBMS or interested in it, then can just reduce the MBMS industry
The transmission of business, or the transmission of the MBMS is not dispatched, so as to save Radio Resource.
Example shown in Fig. 2 is illustrated by taking MBMS as an example, it should be understood that,
The scheme of the present embodiment applies also for other kinds of multicast or multicast service, such as SC-PTM business.
In SC-PTM business, only difference is that base station can be by single cell point in multipoint service
Multicast control channel (SC-MCCH) sends the configuration information for indicating uplink feedback channel.
With reference to Fig. 3, Fig. 3 shows the multicast of the present embodiment or the transmitting device of multicast service, for can
Send the base station in the base station of multicast or multicast service, such as LTE network.The transmitting device can include：
Configuration information sending module 31, the configuration information of uplink feedback channel is indicated for sending；Feedback signal is examined
Module 32 is surveyed, for detecting the signal in the uplink feedback channel, to judge whether targeted customer
Terminal, the target terminal user refer to receive the multicast or multicast service user terminal or
User terminal interested in the multicast or multicast service.Wherein, target terminal user is matched somebody with somebody according to
Confidence breath sends feedback information in the uplink feedback channel.
Wherein, feedback signal detection module 32 can include：Power detecting unit, it is described for detecting
The power of signal on row feedback channel；Judging unit, if the power of the signal exceedes pre-determined threshold,
Then judge that the target terminal user is present, otherwise judge that the target terminal user is not present.
In addition, the transmitting device can also include business reorganization module 33, for the inspection according to the signal
Survey result and adjust the multicast or the transmission of multicast service.
Transmitting device 300 shown in Fig. 3 can be integrated in base station, or outside is coupled to base station.Pass
Defeated device 300 can be realized by the way of software, hardware or software and hardware combining.On transmission dress
Put 300 more details, the correlation that may be referred to the transmission method of foregoing multicast or multicast service retouches
State, repeat no more here.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (16)
1. a kind of multicast or the transmission method of multicast service, the base station for sending multicast or multicast service, it is special
Levy and be, including：
Send the configuration information for indicating uplink feedback channel；
The signal in the uplink feedback channel is detected, it is described to judge whether target terminal user
Target terminal user refers to receive the user terminal of the multicast or multicast service or to the multicast
Or multicast service user terminal interested；
Wherein, the target terminal user is sent according to the configuration information in the uplink feedback channel
Feedback information.
2. multicast according to claim 1 or the transmission method of multicast service, it is characterised in that detection institute
The signal in uplink feedback channel is stated, to judge whether that target terminal user includes：If the letter
Number power exceed pre-determined threshold, then judge that the target terminal user is present；Otherwise the target is judged
User terminal is not present.
3. multicast according to claim 1 or the transmission method of multicast service, it is characterised in that also include：
The multicast or the transmission of multicast service are adjusted according to the testing result of the signal.
4. multicast according to claim 1 or the transmission method of multicast service, it is characterised in that by being
Message of uniting or multicast control channel send the configuration information.
5. multicast according to claim 4 or the transmission method of multicast service, it is characterised in that described many
It is the multicast control channel or single cell point in multimedia broadcast multi-broadcasting business to multiple spot industry to broadcast control channel
Multicast control channel in business.
6. multicast according to claim 1 or the transmission method of multicast service, it is characterised in that described to match somebody with somebody
Confidence breath includes：The sub-frame information and frequency domain information of the uplink feedback channel.
7. multicast according to claim 6 or the transmission method of multicast service, it is characterised in that described to match somebody with somebody
Confidence breath also includes one or more of：The signal format and power configuration parameter of the feedback information.
8. multicast according to any one of claim 1 to 7 or the transmission method of multicast service, its feature
It is, the transmission power that single target user terminal sends the feedback information is less than predetermined power or road
The offset of footpath loss is less than predesigned compensation value.
9. a kind of multicast or the transmitting device of multicast service, the base station for sending multicast or multicast service, it is special
Levy and be, including：
Configuration information sending module, the configuration information of uplink feedback channel is indicated for sending；
Feedback signal detection module, for detecting the signal in the uplink feedback channel, to judge whether
There is target terminal user, the target terminal user refers to receive the multicast or multicast service
User terminal or user terminal interested in the multicast or multicast service；
Wherein, the target terminal user is sent according to the configuration information in the uplink feedback channel
Feedback information.
10. multicast according to claim 9 or the transmitting device of multicast service, it is characterised in that described anti-
Feedback signal detection module includes：
Power detecting unit, the power for detecting the signal in the uplink feedback channel；
Judging unit, if the power of the signal exceedes pre-determined threshold, judges that the targeted customer is whole
End is present, and otherwise judges that the target terminal user is not present.
11. multicast according to claim 9 or the transmitting device of multicast service, it is characterised in that also include：
Business reorganization module, the hair for adjusting the multicast or multicast service according to the testing result of the signal
Send.
12. multicast according to claim 9 or the transmitting device of multicast service, it is characterised in that described to match somebody with somebody
Put information sending module and the configuration information is sent by system message or multicast control channel.
13. multicast according to claim 12 or the transmitting device of multicast service, it is characterised in that described
Multicast control channel is the multicast control channel or single cell point in multimedia broadcast multi-broadcasting business to multiple spot
Multicast control channel in business.
14. multicast according to claim 9 or the transmitting device of multicast service, it is characterised in that described to match somebody with somebody
Confidence breath includes：The sub-frame information and frequency domain information of the uplink feedback channel.
15. multicast according to claim 14 or the transmitting device of multicast service, it is characterised in that described
Configuration information also includes one or more of：The signal format and power configuration parameter of the feedback information.
16. the transmitting device of the multicast or multicast service according to any one of claim 9 to 15, it is special
Levy and be, single target user terminal send the transmission power of the feedback information less than predetermined power or
The offset of path loss is less than predesigned compensation value.
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| WO2019206075A1 (en) * | 2018-04-25 | 2019-10-31 | 华为技术有限公司 | Multicast transmission method and communication device |
| CN110475210A (en) * | 2018-05-11 | 2019-11-19 | 华为技术有限公司 | A kind of communication means and device |
| CN111294750A (en) * | 2019-01-11 | 2020-06-16 | 展讯通信（上海）有限公司 | Data feedback processing method and device |
| CN112291720A (en) * | 2019-07-22 | 2021-01-29 | 三星电子株式会社 | Multicast transmission method based on channel feedback |
| WO2021109478A1 (en) * | 2020-05-20 | 2021-06-10 | Zte Corporation | Methods and devices for allocating uplink resource for mbms uplink feedback information |
| WO2021143869A1 (en) * | 2020-01-16 | 2021-07-22 | Mediatek Singapore Pte. Ltd. | Uplink feedback and retransmission for new radio (nr) multicast services |
| CN113825102A (en) * | 2020-06-19 | 2021-12-21 | 展讯通信（上海）有限公司 | Information feedback and resource allocation method and related product |
| WO2022021811A1 (en) * | 2020-07-31 | 2022-02-03 | Oppo广东移动通信有限公司 | Wireless communication method, terminal device and network device |
| CN114422091A (en) * | 2020-10-28 | 2022-04-29 | 展讯通信（上海）有限公司 | Service maintaining method in side link relay system, relay device and medium |
| CN115699813A (en) * | 2020-08-07 | 2023-02-03 | Oppo广东移动通信有限公司 | Method for transmitting feedback information, terminal equipment and network equipment |
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