CN107920333A - Multicasting schedule method, HARQ message receiving methods, user equipment and base station - Google Patents

Multicasting schedule method, HARQ message receiving methods, user equipment and base station Download PDF

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Publication number
CN107920333A
CN107920333A CN201610879029.0A CN201610879029A CN107920333A CN 107920333 A CN107920333 A CN 107920333A CN 201610879029 A CN201610879029 A CN 201610879029A CN 107920333 A CN107920333 A CN 107920333A
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China
Prior art keywords
information
multicast
base station
data
multicasting schedule
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CN201610879029.0A
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Chinese (zh)
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CN107920333B (en
Inventor
陈亚迷
王森
孙军帅
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • 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

Abstract

The embodiment of the invention discloses a kind of multicasting schedule method, UE and base station, the described method includes：The multicasting schedule information of UE receiving multicast business；The multicasting schedule information includes the offset information of the UE；The offset information of the UE, for indicating that from multicast packet selection receives the pending data of the UE, alternatively, the Radio Resource that for indicating that the UE uploads data to base station when uses；The UE receives the pending data of itself according to the offset information of itself when receiving the multicast service；Alternatively, offset informations of the UE according to itself, data are uploaded to base station.In this way, in down direction, UE can be the resource distribution for itself setting differentiation in the scheduling information according to reception, be quickly found out and belong to the data of itself, can save the resource of UE；In up direction, the probability that multiple UE upload data collision can be reduced.

Description

Multicasting schedule method, HARQ message receiving methods, user equipment and base station
Technical field
The present invention relates to multicasting technology, more particularly to a kind of multicasting schedule method, hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat reQuest) message receiving method, user equipment (UE, User Equipment) and base Stand.
Background technology
In wireless communication field, there are a large amount of mobile interchange small data message, such as wechat text fragments, keep Alive Packet Deng, meanwhile, with the continuous development of wireless communication technique, it may appear that substantial amounts of internet of things equipment, for example lead in magnanimity machine type The substantial amounts of internet of things equipment occurred in letter (mMTC, massive Machine Type Communication) scene, these Internet of things equipment transmits small data packets information mostly；At this time, the broken of Internet resources will be caused there are substantial amounts of small data in network Piece.
In the prior art, network resource scheduling can be realized using resource allocation entity such as base station, can be by one end time The interior small data packets binding towards multiple users is distributed to each UE, so as to save network scheduling resource overhead；For example, can be with Data packet is sent to each UE using multicasting technology；Fig. 1 is the schematic diagram of the data structure of multicasting schedule in the prior art, is such as schemed Shown in 1, resource allocation entity such as base station can use multicasting technology to each UE packet distributions, the mark used in multicasting schedule Can be that group exhales Radio Network Temporary Identifier (G-RNTI, Group-Cell Radio Network Temporary Identifier), resource allocation entity includes data 1 to data N to the data packet that each UE distributes, wherein, data n represents money Nth data in the data packet that source allocation entity is distributed to each UE, n are the natural number less than or equal to N, and N is oneself more than 1 So number.
However, existing multicasting technology has problems in that, in receiving terminal, each UE needs trial to go to demodulate towards this All data in the data packet of multicastapackets, in order to find the data for belonging to the UE, add the resource consumption and work(of UE Consumption.
The content of the invention
To be received in order to solve the above technical problems, an embodiment of the present invention is intended to provide a kind of multicasting schedule method, HARQ information Method, UE and base station, can save the resource consumption of UE.
The technical proposal of the invention is realized in this way：
An embodiment of the present invention provides a kind of multicasting schedule method, the described method includes：
The multicasting schedule information of UE receiving multicast business；The multicasting schedule information includes the offset information of the UE；Institute The offset information of UE is stated, for indicating the pending data of the selection reception UE from the multicast packet, alternatively, being used for Indicate the Radio Resource used when the UE uploads data to base station；
The UE receives the pending data of itself according to the offset information of itself when receiving the multicast service；Or Person, the UE upload data according to the offset information of itself to base station.
In the embodiment of the present invention, the transmission that the multicasting schedule information further includes for indicating the multicast service provides The public scheduling information in source.
In the embodiment of the present invention, the offset information of the UE is corresponding with the identification information of the UE；
Correspondingly, the method further includes：The UE is according to the identification information of the UE obtained in advance and the UE Identification information and the correspondence of the offset information of the UE, determine the biasing letter of the UE in the multicasting schedule information Breath.
In the embodiment of the present invention, the multicasting schedule information is corresponding with the identification information of the multicast service；
Correspondingly, the method further includes：Identification informations and institute of the UE according to the predetermined multicast service The identification information of multicast service and the correspondence of multicasting schedule information are stated, determines to need the multicasting schedule information received.
In the embodiment of the present invention, the identification information of the multicast service is the corresponding G-RNTI of the multicast service.
In the embodiment of the present invention, the offset information of the UE is radio-resource-configuration letter corresponding to the identification information of the UE Breath, the wireless resource configuration include at least one of：Space resources distribution information, time resource configuration information, frequency Rate resource allocation information, code source configuration information.
In the embodiment of the present invention, wireless resource configuration corresponding to the identification information of the UE, for indicating the UE Positional information of the pending data in the multicast packet.
In the embodiment of the present invention, the transmission mode of the multicast packet is non orthogonal transmissions mode；
Correspondingly, the offset information of the UE is joined for the transmission of non orthogonal transmissions mode corresponding to the identification information of the UE Number.
In the embodiment of the present invention, the method further includes：The UE receives the multicast tune of hybrid automatic repeat-request HARQ Spend information；The multicasting schedule information of the HARQ, for indicating that selection receives the UE's from the re-transmission data packet of multicast HARQ information；
The UE receives the HARQ information of itself according to the multicasting schedule information of the HARQ.
In the embodiment of the present invention, the UE receives group positioned when the HARQ information of itself and itself pending data Broadcast a group difference.
The embodiment of the present invention additionally provides a kind of multicasting schedule method, the described method includes：
Base station sends the multicasting schedule information to each user equipment (UE) of receiving multicast business；The multicasting schedule letter Breath includes the offset information of each UE of receiving multicast business；The offset information of each UE, for indicating from multicast packet Selection receives the pending data of corresponding UE, alternatively, for indicate corresponding UE to base station upload data when the Radio Resource that uses；
Distribute the multicast packet to each UE of receiving multicast business in base station；Uploaded alternatively, base station receives each UE Data.
In the embodiment of the present invention, the transmission that the multicasting schedule information further includes for indicating the multicast service provides The public scheduling information in source.
In the embodiment of the present invention, the base station sends the multicasting schedule information, bag to each UE of receiving multicast business Include：The base station sends Downlink Control Information (DCI, Downlink Control to each UE of receiving multicast business Information), the DCI carries the multicasting schedule information.
In the embodiment of the present invention, the offset information of each UE is：The wireless money corresponding with the identification information of corresponding UE Source configuration information, the wireless resource configuration include at least one of：Space resources distribution information, time resource configuration Information, frequency resource configuration information, code source configuration information.
In the embodiment of the present invention, wireless resource configuration corresponding to the identification information of each UE, for indicating corresponding UE Positional information of the pending data in the multicast packet.
In the embodiment of the present invention, the offset information of each UE is：Corresponding with the identification information of corresponding UE is nonopiate The configured transmission of transmission mode；
Correspondingly, the transmission mode of the multicast packet is non orthogonal transmissions mode.
The embodiment of the present invention additionally provides a kind of UE, and the UE includes receiving module and first processing module；Wherein,
Receiving module, the multicasting schedule information for receiving multicast business；The multicasting schedule information includes the UE's Offset information, the offset information of the UE, for indicating the pending number of the selection reception UE from the multicast packet According to, alternatively, for indicate the UE to base station upload data when the Radio Resource that uses；
First processing module, for when receiving the multicast service, the UE to be received according to the offset information of the UE Pending data；Alternatively, data are uploaded to base station for the offset information according to the UE.
In the embodiment of the present invention, the transmission that the multicasting schedule information further includes for indicating the multicast service provides The public scheduling information in source.
In the embodiment of the present invention, the offset information of the UE is corresponding with the identification information of the UE；
Correspondingly, the first processing module, is additionally operable to the identification information for the UE that basis obtains in advance and the UE Identification information and the UE offset information correspondence, the biasing letter of the UE is determined in the multicasting schedule information Breath.
In the embodiment of the present invention, the multicasting schedule information is corresponding with the identification information of the multicast service；
Correspondingly, the receiving module, is additionally operable to according to the identification information of the predetermined multicast service and described The identification information of multicast service and the correspondence of multicasting schedule information, determine to need the multicasting schedule information received.
The embodiment of the present invention additionally provides a kind of base station, and the base station includes sending module and Second processing module；Wherein,
Sending module, for sending the multicasting schedule information to each user equipment (UE) of receiving multicast business；It is described Multicasting schedule information includes the offset information of each UE of receiving multicast business, the offset information of each UE, for indicating from group Selection receives the pending data of corresponding UE in unicast packets, alternatively, being used to indicate to use when corresponding UE uploads data to base station Radio Resource；
Second processing module, for distributing the multicast packet to each UE of receiving multicast business, alternatively, receiving each The data that a UE is uploaded.
In the embodiment of the present invention, the transmission that the multicasting schedule information further includes for indicating the multicast service provides The public scheduling information in source.
In the embodiment of the present invention, the sending module, specifically for sending downlink control to each UE of receiving multicast business Information DCI processed, the DCI carry the multicasting schedule information.
In the embodiment of the present invention, the offset information of each UE is：The wireless money corresponding with the identification information of corresponding UE Source configuration information, the wireless resource configuration include at least one of：Space resources distribution information, time resource configuration Information, frequency resource configuration information, code source configuration information.
In the embodiment of the present invention, wireless resource configuration corresponding to the identification information of each UE, for indicating corresponding UE Positional information of the pending data in the multicast packet.
In the embodiment of the present invention, the offset information of each UE is：Corresponding with the identification information of corresponding UE is nonopiate The configured transmission of transmission mode；Correspondingly, the transmission mode of the multicast packet is non orthogonal transmissions mode.
In the embodiment of the present invention, the multicasting schedule information of UE receiving multicast business；The multicasting schedule information includes described The offset information of UE；The offset information of the UE, for indicating that from multicast packet selection is received from the treating of the UE Manage data, alternatively, for indicate the UE to base station upload data when the Radio Resource that uses；The UE is receiving the multicast During business, the pending data of itself is received according to the offset information of itself；Alternatively, offset informations of the UE according to itself, Data are uploaded to base station；In this way, in down direction, UE can be the money for itself setting differentiation in the scheduling information according to reception Source configures, and is quickly found out and belongs to the data of itself, can save the resource of UE；In up direction, multiple UE can be reduced and uploaded The probability of data collision.
Brief description of the drawings
Fig. 1 is the schematic diagram of the data structure of multicasting schedule in the prior art；
Fig. 2 is the flow chart of the multicasting schedule method of the embodiment of the present invention；
Fig. 3 is a schematic diagram of the data structure of multicasting schedule in the embodiment of the present invention；
Fig. 4 is the composition structure diagram of UE of the embodiment of the present invention；
Fig. 5 is the composition structure diagram of base station of the embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes.
In the embodiment of the present invention, the scheduling of multicast resource can be realized by an independent resource allocation entity, below Illustrated so that resource allocation entity is base station as an example.Base station is in shared resource of the distribution towards multiple UE, first to each UE The multicasting schedule information of multicast service is sent, is the resource distribution that each UE sets differentiation in multicasting schedule information, such as, Each UE is configured in the time-frequency of the differentiation of shared resource, alternatively, for sending data to UE using non orthogonal transmissions mode When used sparse code word, here, non orthogonal transmissions mode can be Sparse Code multiple access access (SCMA, Sparse Code Multiple Access) transmission mode；As can be seen that each UE can be that itself is set in the scheduling information according to reception The resource distribution of differentiation, is quickly found out and receives the pending data of itself, carried out down just for the pending data of itself The processing of one step, is such as demodulated processing；In addition, it also can indicate that the UE uploads number to base station in above-mentioned multicasting schedule information According to when the Radio Resource that uses, correspondingly, UE can upload data according to the offset information of itself to base station；In this way, can be While saving the resource consumption of UE, network resource consumption is saved.
First embodiment
First embodiment of the invention proposes a kind of multicasting schedule method, and Fig. 2 is the multicasting schedule side of the embodiment of the present invention The flow chart of method, as shown in Fig. 2, the flow includes：
Step 201：Base station sends the multicasting schedule information, the multicast service institute to each UE of receiving multicast business The multicast packet of transmission includes：The pending data of each UE of receiving multicast business；The multicasting schedule information includes connecing Receive the offset information of each UE of multicast service, the offset information of each UE, for indicating to select to receive from multicast packet The pending data of corresponding UE, alternatively, for indicate corresponding UE to base station upload data when the Radio Resource that uses.
Here, the number of the UE of receiving multicast business can be more than 1, it can be seen that believe in the multicasting schedule of above-mentioned record In breath, include the offset information of at least two UE；The effect of the offset information of each UE includes：Definite pair in multicast packet The pending data of UE is answered, alternatively, the Radio Resource that instruction corresponding UE uses when uploading data to base station；For example, will be any one A UE is expressed as UE1, then the offset information of UE1 is used for one pending data of selection reception from multicast packet, alternatively, with The Radio Resource used when indicating that UE1 uploads data to base station；Here the pending data for selecting to receive is the pending of UE1 Data.
In actual implementation, base station can receive the data for needing to send to each UE from core net, by the needs of reception The data sent to each UE generate multicast packet after being bundled or being encapsulated；Afterwards, can be generated according to multicast packet Corresponding multicasting schedule information.
Here, the multicasting schedule information is corresponding with the identification information of the multicast service, for example, the multicast service Identification information be the corresponding G-RNTI of the multicast service.
Here, the multicasting schedule information further includes the public tune of the channel transmission resource for indicating the multicast service Spend information；In practical applications, the public scheduling information is used to determine each UE of receiving multicast business and to reception group The each UE for broadcasting business sends the channel transmission parameters used during data.
In some cases, the offset information of each UE is not strictly to bind on physical resource with public scheduling information , for the ease of sending the offset information of each UE and public scheduling information at the same time, a kind of new downlink control letter can be designed Cease (DCI, Downlink Control Information) sending method.
Specifically, base station can send DCI to each UE of receiving multicast business, and the DCI carries the multicast tune Spend information；That is, carry the offset information of each UE and public scheduling information at the same time in the DCI.
The offset information of each UE is corresponding with the identification information of corresponding UE, that is to say, that any one UE is denoted as UE2 When, the offset information of UE2 is corresponding with the identification information of UE2, for example, the identification information of UE2 is the C-RNTI of UE2 or UE2 pairs The G-RNTI for the multicast service answered.
Illustrate the offset information of each UE in two kinds of situation below.
The first situation
Each the offset information of UE is：Wireless resource configuration corresponding to the identification information of corresponding UE；The mark of each UE Know the pending data that the corresponding wireless resource configuration of information is used to determine corresponding UE in the multicast packet, or Person, for indicate corresponding UE to base station upload data when the Radio Resource that uses.In actual implementation, the identification information of each UE Corresponding wireless resource configuration includes at least one of：Space resources distribution information, time resource configuration information, frequency Resource allocation information, code source configuration information；Further, radio-resource-configuration letter corresponding to the identification information of each UE Breath, for indicating positional information of the pending data of corresponding UE in the multicast packet.
That is, for any one UE, the offset information of the UE can be corresponding wireless of the identification information of the UE Resource allocation information, the wireless resource configuration that the identification information of the UE is corresponding are used to determine to be somebody's turn to do in the multicast packet The pending data of UE, alternatively, for indicate corresponding UE to base station upload data when the Radio Resource that uses.
For example, base station needs to send multicast shared resource to M UE, M is the natural number more than 1；The mark letter of m-th of UE The value for ceasing corresponding wireless resource configuration is 0,1 ..., M-1；Here, m is less than the natural number equal to M；At m-th When wireless resource configuration corresponding to the identification information of UE is q, which can be in multicast packet The q+1 pending data is determined as to the pending data of m-th of UE, q takes 0,1 ..., M-1.
The second situation
Each the offset information of UE can be：The transmission ginseng of non orthogonal transmissions mode corresponding to the identification information of corresponding UE Number, for example, configured transmission can be sparse code word etc.；The sparse code word of the non orthogonal transmissions mode is used in the multicast number According to the pending data that corresponding UE is determined in bag, alternatively, the wireless money that for representing that corresponding UE uploads data to base station when uses Source；Correspondingly, the base station can use non orthogonal transmissions mode to send multicast packet to each UE of receiving multicast business.
Here, pending data determined by the sparse code word of non orthogonal transmissions mode is the pending data of corresponding UE, For example, base station needs to send multicast shared resource to M UE, M is the natural number more than 1；The identification information of m-th of UE is corresponding Pending data determined by the sparse code word of non orthogonal transmissions mode is：The pending data of m-th of UE.
In actual implementation, the identification information of UE can be the corresponding G-RNTI of C-RNTI or described multicast services.
It should be noted that the identification information of each UE can be differently configured from the identification information of the multicast service, can also It is identical with the identification information of multicast service；When the identification information of each UE is the identification information of multicast service, due to each UE Identification information is identical, and the pending data according to determined by the offset information of each UE is identical in multicast packet.
Further, base station can be after multicast packet and multicasting schedule information be scrambled, then by multicast packet Bag and multicasting schedule information are sent to each UE；Base station and each UE can make an appointment multicast packet and multicasting schedule information Scrambling mode, here, the scrambling mode of multicast packet and multicasting schedule information can be identical, can not also be identical；For example, Multicasting schedule information includes the offset information of each UE, and the offset information of each UE is used to determine corresponding UE in multicast packet Pending data；At this time, the scrambling mode of multicast packet is to be scrambled using the identification information of the multicast service, each UE Offset information scrambling mode be using corresponding UE identification information scramble；For example, the scrambling mode of multicast packet is to adopt Scrambled with the G-RNTI of multicast service, the scrambling mode of the offset information of each UE is C-RNTI or multicast industry using corresponding UE The G-RNTI scramblings of business.
Especially, the identification information of each UE and during the identical identification information of multicast service, multicast packet and each UE Offset information use identical scrambling mode, it is pending according to determined by the offset information of each UE in multicast packet Data are identical, at this time, without specifying the offset information of each UE, as long as the identification information pair multicast tune using multicast service Degree information and multicast packet are scrambled.
Step 202：Each UE receives the pending of itself when receiving the multicast service according to the offset information of itself Data；Alternatively, each UE uploads data according to the offset information of itself to base station.
Here, after the multicast packet is distributed in base station to each UE of receiving multicast business, each UE can be received The multicast service.
In one embodiment, base station can start timer after multicasting schedule information is sent to each UE, After the time of timer reaches, distribute the multicast packet to each UE；The timing of timer can be pre-set.
In another embodiment, each UE sends to base station after multicasting schedule information is received and receives confirmation letter Breath；Base station is after the reception confirmation message that each UE for receiving receiving multicast business is sent, to each UE of receiving multicast business Distribute the multicast packet.
Here, base station needs to distribute multicast packet at least two UE using multicasting technology.
Further, in the transmission of non orthogonal transmissions mode corresponding to identification information of the multicasting schedule information including each UE During parameter, base station needs to distribute the multicast packet to each UE of the receiving multicast business using non orthogonal transmissions mode Bag.
In practical applications, the multicasting schedule information is corresponding with the identification information of the multicast service, and each UE can With the identification information according to the predetermined multicast service and the identification information of the multicast service and multicasting schedule information Correspondence, determine to need the multicasting schedule information that receives.
Here, the multicasting schedule information is corresponding with the identification information of the multicast service.Accordingly for any one It is corresponding with the offset information of itself according to the identification information of itself and the identification information of itself that obtain in advance for a UE Relation, determines the offset information of itself in the multicasting schedule information.
In a specific embodiment, after UE receives multicasting schedule information, UE can be according to the multicast tune known in advance The scrambling mode of information is spent, multicasting schedule information is descrambled, so as to extract the channel for indicating the multicast service The offset information of each UE of the public scheduling information of transfer resource and the receiving multicast business of scrambling；Afterwards, UE can be with According to the scrambling mode for the offset information of itself known in advance, the offset information of itself is descrambled, is come from so as to extract The offset information of body.
Further, each UE is demodulated the pending data of itself after the pending data of itself is determined.
That is, multicast packet is being sent to a UE, itself treats in the UE receiving multicast data bag Data are handled, and the pending data of itself is handled, are such as demodulated processing；The UE is not in receiving multicast data bag Data in addition to the pending data of itself.
For example, base station needs to send multicast packet to P UE, P pending data is included in multicast packet, P is Natural number more than 1；This P pending data is expressed as data 1 to data P, for p-th of UE, can by data 1 to A data packet in data P is determined as the pending data of itself, remaining pending data is determined as not handling data, this In, p takes 1 to P；P-th of UE only receives the pending data of itself, does not receive remaining pending data.
In this step, each UE can be uploaded accordingly according to the offset information of corresponding UE in multicasting schedule information to base station Data, here, the offset information of each UE, can serve to indicate that corresponding UE carries out used Radio Resource during uplink feedback； It should be noted that the content of each UE data uploaded to base station is not limited.
Here, it is wireless due to being used when the offset information of each UE can serve to indicate that corresponding UE uploads data to base station Resource, also, different offset informations corresponds to different Radio Resources；In this way, can reduce multiple UE uploads data to base station When the probability that collides.
It is understood that any one UE after the pending data of itself is received, can also carry out uplink to base station Feedback；That is, the UE, which can be directed to the multicast service, carries out uplink feedback；For example, UE can be mixed with base station Automatic retransmission request (HARQ, Hybrid Automatic Repeat reQuest) information exchange.
Here, the offset information of each UE, is additionally operable to used wireless during instruction corresponding UE progress uplink feedback Resource.
Correspondingly, each UE is after the pending data of itself is received, using wireless indicated by the offset information of itself Resource, carries out uplink feedback；Here, the Radio Resource indicated by the offset information of each UE includes at least one of：Space Resource, time resource, frequency resource, code source；
Specifically, the Radio Resource indicated by the offset information of each UE is different, that is to say, that receiving multicast business Each UE offset information indicated by Radio Resource it is different；For example, the nothing indicated by offset information in each UE When line resource is time resource, any two UE can carry out uplink feedback in the different time.
As can be seen that since the Radio Resource indicated by the offset information of each UE is different, in this way, multiple UE to When base station carries out uplink feedback, the probability that multiple UE uploaded during uplink feedback data collision can be reduced.
It should be noted that any one UE after the pending data of itself is received, can not also be carried out to base station Row feedback.
In the embodiment of the present invention, base station can receive the uplink feedback information of at least one UE；Here, the uplink feedback of UE Information refers to：The data or information that UE is uploaded when carrying out uplink feedback to base station.
In the embodiment of the present invention, in down direction, UE can be that itself sets differentiation in the scheduling information according to reception Resource distribution, be quickly found out and belong to the data of itself, the resource of UE can be saved；In up direction, multiple UE can be reduced Upload the probability of data collision.
Second embodiment
In order to more embody the purpose of the present invention, on the basis of first embodiment of the invention, further lifted Example explanation.
Second embodiment of the invention provides a kind of receiving/transmission method of HARQ information, that is to say, that the receipts of the HARQ information Forwarding method includes the sending method of HARQ information and the method for reseptance of HARQ information.
For the sending method of HARQ information, exemplarily, in up direction, UE can send HARQ information to base Stand；Here, the sending method of HARQ information can be continued to use same in Long Term Evolution (LTE, Long Term Evolution) network Walk HARQ sending methods.
For the method for reseptance of HARQ information, exemplarily, asynchronous HARQ method of reseptances can be used；Receiving HARQ letters Used dispatching method can use the multicasting schedule method in first embodiment of the invention during breath.
Specifically, the method for reseptance of the HARQ information includes：
UE receives the multicasting schedule information of HARQ；The multicasting schedule information of HARQ, for indicating the re-transmission data from multicast Selection receives the HARQ information of the UE in bag；UE receives the HARQ information of itself according to the multicasting schedule information of the HARQ.
That is, base station can use HARQ technologies to issue the re-transmission data packet of multicast to UE, further, base station can To issue the re-transmission data packet of multicast using multicast mode, base station issues the implementation and the present invention of the re-transmission data packet of multicast The implementation that multicast packet is sent in first embodiment is identical.
Here, the HARQ information of UE represents the data of corresponding UE institute request retransmission, and in actual implementation, UE can basis The multicasting schedule information of HARQ, the HARQ information of the selection reception UE from the re-transmission data packet of multicast.
Here, the pending data of itself that UE is received includes business datum and HARQ data, and UE receives itself Positioned multicast group may be the same or different when HARQ information and itself business datum；For example, UE receives itself When corresponding identification information is G-RNTI1 during business datum, corresponding identification information can be with when UE receives the HARQ information of itself It is the G-RNTI that G-RNTI2, G-RNTI1 and G-RNTI2 represent corresponding multicast service respectively, and G-RNTI1 is different from G- RNTI2。
3rd embodiment
In order to more embody the purpose of the present invention, further illustrated on the basis of first embodiment of the invention Explanation.
In third embodiment of the invention, network side equipment needs to distribute multicast packet and multicasting schedule letter to multiple UE Breath, illustrates so that network side equipment is base station as an example below.
Base station can use multicast mode to distribute multicast packet and multicasting schedule information to M UE, and M is oneself more than 1 So number；Here, the mark used when carrying out multicasting schedule can be G-RNTI (being scrambled using G-RNTI), can also include The C-RNTI of each UE is, it is necessary to which explanation, base station can also use broadcast mode or other modes to distribute multicast packet to UE Bag and multicasting schedule information.
Here, multicast packet is used to represent each UE user data to be received, and multicasting schedule information includes each The offset information of UE；Preferably, used when carrying out multicasting schedule when being identified as G-RNTI, the offset information of each UE can be with User-specific mark comprising the UE, or can also be G-RNTI, for example, the user-specific of UE is identified as C-RNTI.
For example, the multicast packet of a cycle includes M block child resources, it would be preferable to support carries out multicast packet to M UE Transmission, then, the value of the offset information of any one UE in this M UE can be 0,1 ..., M-1；That is, one M parts of pending datas are included in multicast packet, it would be preferable to support carry out muticast data transmission to M UE, then, multicasting schedule letter Breath includes the offset information of each UE of this M UE, and the value of the offset information of any one UE in this M UE can be 0, 1,…,M-1。
Fig. 3 is a schematic diagram of the data structure of multicasting schedule in the embodiment of the present invention, as shown in figure 3, carrying out multicast What is used during scheduling is identified as G-RNTI, and the offset information of each UE is the C-RNTI of itself, included in a multicast packet N number of pending data, it would be preferable to support carry out muticast data transmission to N number of UE, N is natural number more than 1, this N number of pending number According to being expressed as data 1 to data N, wherein, data n represents n-th part of pending data in multicast packet, n be less than Natural number equal to N, N are the natural number more than 1；Multicasting schedule information includes the offset information of each UE of this N number of UE, this N The value of the offset information of any one UE in a UE can be 1,2 ..., N.
It is understood that if the offset information for carrying out the mark and each UE used during multicasting schedule is G- RNTI, and when each UE data for needing to be demodulated processing are identical data, the biasing without additionally indicating each UE is believed Breath.
Each UE (i.e. terminal user) can believe in receiving multicast business according to multicasting schedule information and the biasing of itself The scrambling mode of breath, extracts the offset information of itself from multicasting schedule information, for example, the value of the offset information of UE is 2.
Each UE determines the pending number of itself according to the offset information of itself extracted in multicast packet According to for example, multicast packet includes M block child resources, it would be preferable to support to M UE progress muticast data transmission, appointing in this M UE The value of the offset information of one UE of meaning can be 0,1 ..., M-1；The value of the offset information of UE is 2, in multicast packet In, the 3rd piece of child resource is determined as the pending data of itself.
It is possible to further set effective period of time for the offset information of each UE, in effective period of time, each UE can To determine the pending data of itself according to the offset information of itself, in remaining period, each UE can not according to itself Offset information determines the pending data of itself；The effective period of time of the offset information of each UE can be defaulted as carrying out multicast tune The period of degree, can also further be indicated by multicasting schedule information, i.e. indicate that each UE's is inclined by multicasting schedule information The timeliness of confidence breath；When the offset information at least one UE that base station obtains is changed, base station is also sent to corresponding UE Message, to indicate the modification of corresponding offset information, and indicates that corresponding UE reacquires offset information (the corresponding user's weight of itself It is new to read offset information), here, base station to the message that UE is sent can be downlink control message (DCI, Downlink Control Information)。
In the prior art, public scheduling information and the offset information of each UE are not usually strictly to tie up on physical resource It is fixed, for the problem, in the embodiment of the present invention, it is also proposed that support the DCI design sides of the multicasting schedule method of above-mentioned record Method, i.e. send public scheduling information and the offset information of each UE to each UE by DCI, that is to say, that in base station to UE Public scheduling information and the offset information of each UE are carried in the DCI of transmission at the same time.
Fourth embodiment
In order to more embody the purpose of the present invention, further illustrated on the basis of first embodiment of the invention Explanation.
In fourth embodiment of the invention, base station needs to send to one group of nonopiate accessing user using non orthogonal transmissions mode Multicast packet, i.e. base station sends multicast packet using non orthogonal transmissions mode to each UE；Correspondingly, multicasting schedule is believed Breath includes：The sparse code word of non orthogonal transmissions mode corresponding to the identification information of each UE, the non orthogonal transmissions mode it is dilute Code word is dredged to be used to determine a pending data in the multicast packet；As can be seen that due to can use it is existing it is non-just The sparse code word of transmission mode is handed over to realize the resource distribution of the differentiation between each UE, it is not necessary to be in addition that each UE is carried out The resource distribution of differentiation, can save Internet resources.
Specifically, base station have learned that user scheduling with pairing need relevant information, according to these information bases according to Certain criterion performs scheduling and nonopiate pairing process to the activation user in cell；After the completion of scheduling and pairing, base station pair Scrambled in the public scheduling information of the nonopiate pairing user in same group using identical G-RNTI, nonopiate the matching somebody with somebody of difference group The public scheduling information of user is scrambled using different G-RNTI, the offset information (the dedicated control information of user) of each UE Still scrambled using C-RNTI.
Each UE matches the public of user when receiving multicasting schedule information, according to G-RNTI to nonopiate in respective sets Scheduling information is descrambled, and draws nonopiate pairing user's common transmission parameter and the offset information of each UE in respective sets；It Afterwards, the offset information of itself is descrambled according to the C-RNTI of itself, draws the offset information of itself after descrambling.
That is, each UE can be determined according to public scheduling information, the offset information of itself in multicast packet Go out the pending data of itself.
Further, each UE can be directed to the pending data of itself and carry out after the pending data of itself is determined Handle in next step, and can be interacted with base station and realize hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat ReQuest) process.
In above-mentioned HARQ procedure, in up direction, Long Term Evolution (LTE, Long Term can be continued to use Evolution) the synchronous HARQ process in system, so, it is possible to reduce the collision of the different pieces of information from different UE；In downlink Direction, using asynchronous HARQ procedure, here, asynchronous HARQ procedure can use the multicasting schedule method of above-mentioned base station, wherein, one The user group when user group of re-transmission where a UE can be from once transmitting before it is different, i.e. base station for the first time to G- After the corresponding UE transmission of RNTI1, when being retransmitted in base station to UE corresponding with G-RNTI1, being somebody's turn to do UE corresponding with G-RNTI1 can belong to In G-RNTI2, here, G-RNTI1 and G-RNTI2 are two different G-RNTI, that is to say, that can carry out difference when retransmitting The scheduling of resource of alienation.
As can be seen that fourth embodiment of the invention can provide more scheduling informations by network, it is convenient to use in downlink Family is quickly found out one's own data in multicast, can save the power consumption of UE；In uplink, it is possible to reduce shared multicast resource The collision of user so that the embodiment of the present invention can more preferably be applied to have energy saving requirement it is many it is big connection small datas and it is non-just Hand over the scenes such as transmission.
5th embodiment
For the multicasting schedule method of first embodiment of the invention, fifth embodiment of the invention proposes a kind of UE.
Fig. 4 is the composition structure diagram of UE of the embodiment of the present invention, as shown in figure 4, the UE includes receiving module 401 and the One processing module 402；Wherein,
Receiving module 401, the multicasting schedule information for receiving multicast business；The multicasting schedule information includes the UE Offset information, the offset information of the UE, for indicating that selection receives the pending of the UE from the multicast packet Data, alternatively, for indicate the UE to base station upload data when the Radio Resource that uses；
First processing module 402, for when receiving the multicast service, according to receiving the offset information of the UE The pending data of UE；Alternatively, data are uploaded to base station for the offset information according to the UE.
Further, the multicasting schedule information further includes the public affairs of the channel transmission resource for indicating the multicast service Scheduling information altogether.
Alternatively, the offset information of the UE is corresponding with the identification information of the UE；Correspondingly, the first processing mould Block 402, is additionally operable to be believed according to the identification information of the UE obtained in advance and the identification information of the UE and the biasing of the UE The correspondence of breath, determines the offset information of the UE in the multicasting schedule information.
Optionally, the multicasting schedule information is corresponding with the identification information of the multicast service；Correspondingly, the reception Module 401, be additionally operable to according to the identification information of the identification information of the predetermined multicast service and the multicast service with The correspondence of multicasting schedule information, determines to need the multicasting schedule information received.
It will be appreciated by those skilled in the art that each module of UE shown in Fig. 4 realizes that function can refer to foregoing multicast tune The associated description of degree method and understand.The function of each module of UE shown in Fig. 4 can by run on the program on processor and Realize, can also be realized by specific logic circuit.
Sixth embodiment
For the multicasting schedule method of first embodiment of the invention, sixth embodiment of the invention proposes a kind of base station.
Fig. 5 is the composition structure diagram of base station of the embodiment of the present invention, as shown in figure 5, the base station includes sending module 501 With Second processing module 502；Wherein,
Sending module 501, for sending the multicasting schedule information to each user equipment (UE) of receiving multicast business；Institute State the offset information of each UE of multicasting schedule information including receiving multicast business, the offset information of each UE, for indicate from Selection receives the pending data of corresponding UE in multicast packet, alternatively, being used to indicate to adopt when corresponding UE uploads data to base station Radio Resource；
Second processing module 502, for distributing the multicast packet to each UE of receiving multicast business；Alternatively, connect Receive the data that each UE is uploaded.
Further, the multicasting schedule information further includes the public affairs of the channel transmission resource for indicating the multicast service Scheduling information altogether.
Optionally, the sending module 501, specifically for sending Downlink Control Information to each UE of receiving multicast business DCI, the DCI carry the multicasting schedule information.
Optionally, the offset information of each UE is：The radio-resource-configuration letter corresponding with the identification information of corresponding UE Breath, the wireless resource configuration include at least one of：Space resources distribution information, time resource configuration information, frequency Rate resource allocation information, code source configuration information.
Optionally, wireless resource configuration corresponding to the identification information of each UE, for indicating the pending of corresponding UE Positional information of the data in the multicast packet.
Optionally, the offset information of each UE is：The non orthogonal transmissions mode corresponding with the identification information of corresponding UE Configured transmission；Correspondingly, the transmission mode of the multicast packet is non orthogonal transmissions mode.
It will be appreciated by those skilled in the art that each module of base station shown in Fig. 5 realizes that function can refer to foregoing multicast The associated description of dispatching method and understand.The function of each module of base station shown in Fig. 5 can be by running on the journey on processor Sequence and realize, can also be realized by specific logic circuit.
, in the case where there is no conflict, can be in any combination between technical solution described in the embodiment of the present invention.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine, Ke Yitong Other modes are crossed to realize.Apparatus embodiments described above are only schematical, for example, the division of the unit, only Only a kind of division of logic function, can have other dividing mode, such as when actually realizing：Multiple units or component can be tied Close, or be desirably integrated into another system, or some features can be ignored, or do not perform.In addition, shown or discussed each group Into the mutual coupling in part or direct-coupling or communication connection can be by some interfaces, equipment or unit it is indirect Coupling or communication connection, can be electrical, mechanical or other forms.
The above-mentioned unit illustrated as separating component can be or may not be physically separate, be shown as unit The component shown can be or may not be physical location, you can positioned at a place, can also be distributed to multiple network lists In member；Partly or entirely unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing unit, Can also be each unit individually as a unit, can also two or more units integrate in a unit； Above-mentioned integrated unit can both be realized in the form of hardware, and the form that hardware adds SFU software functional unit can also be used real It is existing.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.

Claims (26)

  1. A kind of 1. multicasting schedule method, it is characterised in that the described method includes：
    The multicasting schedule information of user equipment (UE) receiving multicast business；The biasing that the multicasting schedule information includes the UE is believed Breath；The offset information of the UE, for indicating the pending data of the selection reception UE from the multicast packet, or Person, for indicate the UE to base station upload data when the Radio Resource that uses；
    The UE receives the pending data of itself according to the offset information of itself when receiving the multicast service；Alternatively, institute Offset informations of the UE according to itself is stated, data are uploaded to base station.
  2. 2. according to the method described in claim 1, it is characterized in that, the multicasting schedule information is further included for indicating described group Broadcast the public scheduling information of the channel transmission resource of business.
  3. 3. according to the method described in claim 1, it is characterized in that, the offset information of the UE and the identification information phase of the UE It is corresponding；
    Correspondingly, the method further includes：The UE is according to the identification information of the UE obtained in advance and the mark of the UE The correspondence of information and the offset information of the UE, determines the offset information of the UE in the multicasting schedule information.
  4. 4. according to the method described in claim 1, it is characterized in that, the multicasting schedule information and the mark of the multicast service Information is corresponding；
    Correspondingly, the method further includes：The UE is according to the identification information of the predetermined multicast service and described group The identification information of business and the correspondence of multicasting schedule information are broadcast, determines to need the multicasting schedule information received.
  5. 5. according to the method described in claim 4, it is characterized in that, the identification information of the multicast service is the multicast service Corresponding group is exhaled Radio Network Temporary Identifier G-RNTI.
  6. 6. method according to any one of claims 1 to 5, it is characterised in that the offset information of the UE is the UE's Wireless resource configuration corresponding to identification information, the wireless resource configuration include at least one of：Space resources Configuration information, time resource configuration information, frequency resource configuration information, code source configuration information.
  7. 7. according to the method described in claim 6, it is characterized in that, the identification information of the UE it is corresponding radio-resource-configuration letter Breath, for indicating positional information of the pending data of the UE in the multicast packet.
  8. 8. method according to any one of claims 1 to 5, it is characterised in that the transmission mode of the multicast packet is Non orthogonal transmissions mode；
    Correspondingly, the configured transmission for non orthogonal transmissions mode corresponding to identification information that the offset information of the UE is the UE.
  9. 9. according to the method described in claim 1, it is characterized in that, the method further includes：The UE receives the automatic weight of mixing Pass the multicasting schedule information of request HARQ；The multicasting schedule information of the HARQ, for indicating from the re-transmission data packet of multicast Selection receives the HARQ information of the UE；
    The UE receives the HARQ information of itself according to the multicasting schedule information of the HARQ.
  10. 10. according to the method described in claim 9, it is characterized in that, the UE receives the HARQ information of itself and the industry of itself Positioned multicast group is different during data of being engaged in.
  11. A kind of 11. multicasting schedule method, it is characterised in that the described method includes：
    Base station sends the multicasting schedule information to each user equipment (UE) of receiving multicast business；The multicasting schedule packet Include the offset information of each UE of receiving multicast business；The offset information of each UE, for indicating to select from multicast packet Receive the pending data of corresponding UE, alternatively, for indicate corresponding UE to base station upload data when the Radio Resource that uses；
    Distribute the multicast packet to each UE of receiving multicast business in base station；Alternatively, base station receives the number that each UE is uploaded According to.
  12. 12. according to the method for claim 11, it is characterised in that the multicasting schedule information further includes described for indicating The public scheduling information of the channel transmission resource of multicast service.
  13. 13. according to the method for claim 11, it is characterised in that the base station is sent to each UE of receiving multicast business The multicasting schedule information, including：The base station sends Downlink Control Information DCI to each UE of receiving multicast business, described DCI carries the multicasting schedule information.
  14. 14. according to the method for claim 11, it is characterised in that the offset information of each UE is：With corresponding UE Wireless resource configuration corresponding to identification information, the wireless resource configuration include at least one of：Space resources Configuration information, time resource configuration information, frequency resource configuration information, code source configuration information.
  15. 15. according to the method for claim 14, it is characterised in that each radio-resource-configuration corresponding to the identification information of UE Information, for indicating positional information of the pending data of corresponding UE in the multicast packet.
  16. 16. according to the method for claim 11, it is characterised in that the offset information of each UE is：With corresponding UE The configured transmission of non orthogonal transmissions mode corresponding to identification information；
    Correspondingly, the transmission mode of the multicast packet is non orthogonal transmissions mode.
  17. 17. a kind of user equipment (UE), it is characterised in that the UE includes receiving module and first processing module；Wherein,
    Receiving module, the multicasting schedule information for receiving multicast business；The multicasting schedule information includes the biasing of the UE Information, the offset information of the UE, for indicating the pending data of the selection reception UE from the multicast packet, or Person, for indicate the UE to base station upload data when the Radio Resource that uses；
    First processing module, for when receiving the multicast service, treating for the UE to be received according to the offset information of the UE Handle data；Alternatively, data are uploaded to base station for the offset information according to the UE.
  18. 18. UE according to claim 17, it is characterised in that the multicasting schedule information is further included for indicating described group Broadcast the public scheduling information of the channel transmission resource of business.
  19. 19. UE according to claim 17, it is characterised in that the offset information of the UE and the identification information phase of the UE It is corresponding；
    Correspondingly, the first processing module, is additionally operable to according to the identification information of the UE and the mark of the UE obtained in advance Know the correspondence of information and the offset information of the UE, the offset information of the UE is determined in the multicasting schedule information.
  20. 20. UE according to claim 17, it is characterised in that the multicasting schedule information and the mark of the multicast service Information is corresponding；
    Correspondingly, the receiving module, is additionally operable to the identification information according to the predetermined multicast service and the multicast The identification information of business and the correspondence of multicasting schedule information, determine to need the multicasting schedule information received.
  21. 21. a kind of base station, it is characterised in that the base station includes sending module and Second processing module；Wherein,
    Sending module, for sending the multicasting schedule information to each user equipment (UE) of receiving multicast business；The multicast Scheduling information includes the offset information of each UE of receiving multicast business, the offset information of each UE, for indicating from multicast number The pending data of corresponding UE is received according to selection in bag, alternatively, for indicate corresponding UE to base station upload data when the nothing that uses Line resource；
    Second processing module, for distributing the multicast packet to each UE of receiving multicast business, alternatively, receiving each UE The data of upload.
  22. 22. base station according to claim 21, it is characterised in that the multicasting schedule information further includes described for indicating The public scheduling information of the channel transmission resource of multicast service.
  23. 23. base station according to claim 21, it is characterised in that the sending module, specifically for receive multicast industry Each UE of business sends Downlink Control Information DCI, the DCI and carries the multicasting schedule information.
  24. 24. base station according to claim 21, it is characterised in that the offset information of each UE is：With corresponding UE Wireless resource configuration corresponding to identification information, the wireless resource configuration include at least one of：Space resources Configuration information, time resource configuration information, frequency resource configuration information, code source configuration information.
  25. 25. base station according to claim 24, it is characterised in that each radio-resource-configuration corresponding to the identification information of UE Information, for indicating positional information of the pending data of corresponding UE in the multicast packet.
  26. 26. base station according to claim 21, it is characterised in that the offset information of each UE is：With corresponding UE The configured transmission of non orthogonal transmissions mode corresponding to identification information；Correspondingly, the transmission mode of the multicast packet for it is non-just Hand over transmission mode.
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