CN110087340A - The method and apparatus of relay transmission - Google Patents

The method and apparatus of relay transmission Download PDF

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Publication number
CN110087340A
CN110087340A CN201810074927.8A CN201810074927A CN110087340A CN 110087340 A CN110087340 A CN 110087340A CN 201810074927 A CN201810074927 A CN 201810074927A CN 110087340 A CN110087340 A CN 110087340A
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CN
China
Prior art keywords
information
configuration information
base station
data
control channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810074927.8A
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Chinese (zh)
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CN110087340B (en
Inventor
周淼
苏迪
孙霏菲
张英杰
钱辰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
Original Assignee
Beijing Samsung Telecommunications Technology Research Co Ltd
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to CN201810074927.8A priority Critical patent/CN110087340B/en
Application filed by Beijing Samsung Telecommunications Technology Research Co Ltd, Samsung Electronics Co Ltd filed Critical Beijing Samsung Telecommunications Technology Research Co Ltd
Priority to EP21150611.8A priority patent/EP3823220A1/en
Priority to KR1020217000667A priority patent/KR102388350B1/en
Priority to US16/626,989 priority patent/US11350364B2/en
Priority to PCT/KR2018/008716 priority patent/WO2019027242A1/en
Priority to KR1020207002953A priority patent/KR20200026921A/en
Priority to EP18841621.8A priority patent/EP3610689B1/en
Priority to KR1020227012368A priority patent/KR102491548B1/en
Publication of CN110087340A publication Critical patent/CN110087340A/en
Priority to US17/149,562 priority patent/US11218967B2/en
Priority to US17/567,773 priority patent/US11737024B2/en
Priority to US18/453,141 priority patent/US20230397112A1/en
Application granted granted Critical
Publication of CN110087340B publication Critical patent/CN110087340B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • H04B7/15507Relay station based processing for cell extension or control of coverage area
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a kind of methods of relay transmission, applied to field of communication technology, this method comprises: the first UE receives the configuration information that base station is sent, then according to the configuration information, receive the information of the 2nd UE, then the information of the 2nd UE received is forwarded, wherein configuration information is used to receive the information of the 2nd UE.

Description

The method and apparatus of relay transmission
Technical field
The present invention relates to fields of communication technology, specifically, the present invention relates to a kind of method and apparatus of relay transmission.
Background technique
In long term evolution (Long Term Evolution, LTE) technology, information will be carried out between base station and terminal device Interaction, farther out due to section terminating equipment potential range base station, so as to cause the section terminating equipment can not access base station, or Dtr signal needs to pass through relaying technique between terminal and base station to meet the needs of to traffic rate and communication quality Transmitted, to guarantee the information exchange between terminal and base station, and promoted cell covering extension, cell capacity promoted and The homogenization of cell throughout, therefore relay transmission how is carried out as a critical issue.
Summary of the invention
To overcome above-mentioned technical problem or at least being partially solved above-mentioned technical problem, spy proposes following technical scheme:
The embodiment of the present invention provides a kind of method of relay transmission according to first aspect, by the first user equipment UE is executed, comprising:
Receive the configuration information that base station is sent, wherein configuration information is used to receive the information of the 2nd UE;
According to configuration information, the information of the 2nd UE is received;
Forward the information of the 2nd UE received.
Wherein, configuration information includes:
The identity of 2nd UE;The radio network temporary identifier RNTI information of 2nd UE;The downlink of 2nd UE controls letter Road configuration information;The down control channel configuration information of first UE;The data channel configuration information of first UE;The data of 2nd UE Channel configuration information;
Wherein, down control channel PDCCH configuration information includes at least one of the following: relay physical downlink control channel search space class Type, starting subframe, offset, can use subframe, Downlink Control Information DCI format and downlink control at maximum number of repetitions Rmax Channel resource configuration information;
Wherein, data channel configuration information include at least one of the following: uplink data channels PUSCH configuration information, under The configuration information of row data channel PDSCH, the transmission mode of data channel, pilot frequency information, uplink can use son with subframe, downlink Area size is controlled in frame, polyhybird automatic repeat request HARQ process parameter and subframe.
Specifically, according to configuration information, the information of the 2nd UE is received, comprising:
According to configuration information, the configuration information of the down control channel based on the 2nd UE is obtained, according to the 2nd UE of acquisition Down control channel configuration information, monitor the 2nd UE down control channel, decoding obtain the first scheduling information, the 2nd UE's The corresponding scheduling information of data channel is used to indicate the reception of the data channel of the 2nd UE, wherein the first scheduling information is for referring to Show the reception of the data channel of the 2nd UE;
According to the first scheduling information, the data information of the 2nd UE is received.
Specifically, according to configuration information, the information of the 2nd UE is received, comprising:
According to configuration information, the configuration information of the down control channel of the first UE is obtained, according under the first UE of acquisition Row control channel configuration information, monitors the down control channel of the first UE, and decoding obtains the first scheduling information;
According to the first scheduling information, the data information of the 2nd UE is received.
Specifically, according to the first scheduling information, the data information of the 2nd UE is received, comprising:
According to the first scheduling information, the upstream data information of the 2nd UE is received on the uplink data channels of the 2nd UE;With/ Or,
According to the first scheduling information, is received in the downstream data channel of the 2nd UE or the downstream data channel of the first UE The downlink data information of two UE.
Further, the upstream data information of the 2nd UE is that the 2nd UE is sent according to from the directly received control information in base station , alternatively, the upstream data information of the 2nd UE is that the 2nd UE is sent according to the control information that the first UE is forwarded.
Forward the information of the 2nd UE received, comprising:
Receive the second scheduling information that base station is sent, wherein the second scheduling information forwards the number of the 2nd UE for the first UE It is believed that breath;
According to the second scheduling information, the data information of the 2nd UE received is forwarded.
Further, the data information of the 2nd UE is to receive at the 2nd UE according to from the directly received control information in base station , alternatively, the data information of the 2nd UE is received according to the control information of the first UE forwarding at the 2nd UE.
Specifically, the second scheduling information that base station is sent is received, comprising:
The down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, decoding obtains the second scheduling letter Breath.
Specifically, the down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, and is successfully decoded To the first scheduling information and/or the second scheduling information, comprising:
The down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, the scheduling of data channel is obtained Information, and the instruction information in the scheduling information based on data channel, determine the first scheduling information and/or the second scheduling information; And/or
The down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, the scheduling of data channel is obtained Information, and the instruction information in the scheduling information based on data channel determine the first scheduling information, and based on default relay transmission Any one of configuration information and default mapping relations and the first scheduling information, determine the second scheduling information;And/or
The down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, the scheduling of data channel is obtained Information, and the instruction information in the scheduling information based on data channel determine the second scheduling information, and based on default relay transmission Any one of configuration information and default mapping relations, and for forwarding the corresponding scheduling information of the 2nd UE data information, Determine the first scheduling information.
Wherein, the corresponding scheduling information of data channel and be used to forward the 2nd UE data that mapping relations are the 2nd UE are preset The corresponding scheduling information of information mapping relations between the two.
Specifically, the down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, and decodes and obtains the One scheduling information and/or be used for the second scheduling information, comprising:
The specific search space UE and/or the specific search space UE of the 2nd UE of the first UE are monitored, and passes through the first UE's The RNTI of radio network temporary identifier RNTI and/or the 2nd UE carry out blind examination;
Blind examination succeeds and decodes to obtain the corresponding scheduling information of uplink data channels and/or the corresponding tune of downstream data channel Spend information;
The RNTI that is used by blind examination, it receives and is carried in the corresponding search space of the scheduling information and the scheduling information Information bit at least one of, determine the scheduling information for dispatch the first UE and/or the 2nd UE;
Based on have determined that the scheduling information for dispatch the first UE and/or the 2nd UE, determine the first scheduling information and/or the Two scheduling informations.
Specifically, the specific search space UE of the first UE and/or the specific search space UE of the 2nd UE are monitored, and passes through the The RNTI of the RNTI of one UE and/or the 2nd UE carry out blind examination, comprising:
The specific search space UE of the first UE is monitored, and blind examination is carried out by the RNTI of the first UE;And/or
The specific search space UE of the first UE is monitored, and blind by the RNTI of the RNTI and the 2nd UE of the first UE progress Inspection;And/or
Monitor the specific search space UE and the specific search space UE of the 2nd UE of the first UE, and respectively by with search The corresponding RNTI in space carries out blind examination;And/or
Monitor the specific search space UE and the specific search space UE of the 2nd UE of the first UE, and search each UE is specific Blind examination is carried out by the RNTI of the RNTI and the first UE of the 2nd UE in rope space.
Further, this method further include: more than one for forwarding the corresponding tune of the 2nd UE data information when getting When spending information and/or the corresponding scheduling information of more than one 2nd UE data channel, according to predefined mapping ruler, determine each It is a to be used to forward between the corresponding scheduling information of the 2nd UE data information and the corresponding scheduling information of each 2nd UE data channel Mapping relations, predefined mapping ruler is for forwarding the corresponding scheduling information of the 2nd UE data information and the 2nd UE data Mapping ruler between the corresponding scheduling information of channel.
Specifically, the information of the 2nd UE received is forwarded, comprising:
Before the data information of the 2nd UE received, media access control mac frame head or Radio Link control are added RLC frame head processed;
The data information of the 2nd UE after forwarding addition frame head.
Specifically, according to configuration information, the information of the 2nd UE is received, comprising:
Letter is controlled according to the downlink of configuration information, the down control channel configuration information and/or the first UE that obtain the 2nd UE Road configuration information;
Match confidence according to the down control channel of the down control channel configuration information of the 2nd UE of acquisition and/or the first UE Breath, monitors the down control channel of the first UE and/or the down control channel of the 2nd UE, and decoding obtains the downlink control of the 2nd UE Information;
Forward the information of the 2nd UE received, comprising:
On the down control channel of the 2nd UE, the Downlink Control Information of the 2nd UE is forwarded to the 2nd UE.
Further, after receiving the configuration information that base station is sent, method further include:
According at least one of following information, judge whether the control information decoded according to configuration information is used to adjust Spend the first UE and/or the 2nd UE: the scrambling RNTI of the information bit, control message that carry in control message and decoding control disappear The search space of breath.
Wherein, the content carried in information bit includes at least one of the following: the body of the identity of the first UE, the 2nd UE Part mark, the RNTI of the first UE, the 2nd UE RNTI, the first UE and the 2nd UE between mapping relations identification information.
Further, this method further include: message content and/or information ratio of the first UE when being forwarded, to forwarding Spy is modified.
Further, the first UE is to ability at least one below base station report:
Have and carries out received ability on uplink band or sub-frame of uplink;
Has the ability sent on band downlink or downlink subframe;
The ability for having full duplex.
The embodiment of the present invention additionally provides a kind of method of relay transmission according to the second aspect, comprising:
Base station sends configuration information to the first UE;
Base station sends the information of the 2nd UE by the first UE according to configuration information to the 2nd UE;And/or
Base station receives the information of the 2nd UE of the first UE forwarding according to configuration information;
Wherein, configuration information at the first UE for forwarding the information of the 2nd UE.
Wherein, the identity of the 2nd UE, the downlink control of radio network temporary identifier the RNTI information, the 2nd UE of the 2nd UE Channel configuration information processed, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Data channel configuration information;
Wherein, down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
Wherein, data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downlink data The configuration information of channel, the transmission mode of data channel, pilot frequency information, uplink can use subframe, polyhybird certainly with subframe, downlink Area size is controlled in dynamic retransmission request HARQ process parameter and subframe.
Specifically, base station sends the information of the 2nd UE by the first UE according to configuration information to the 2nd UE, comprising:
Base station sends the control information and data information of the 2nd UE by the first UE according to configuration information to the 2nd UE;Or Person,
Base station sends control information according to configuration information, to the 2nd UE, and sends the 2nd UE to the 2nd UE by the first UE Data information.
Specifically, base station receives the information of the 2nd UE of the first UE forwarding according to configuration information, comprising:
Base station sends the control information of the 2nd UE by the first UE according to configuration information to the 2nd UE, and receives the first UE The data information of 2nd UE of forwarding;Alternatively,
Base station sends control information according to configuration information, to the 2nd UE, and receives through the first UE the 2nd UE's forwarded Data information.
Specifically, base station sends the data information of the 2nd UE by the first UE to the 2nd UE, comprising:
Base station is according to configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, to First UE sends the second scheduling information and the first scheduling information, wherein the first scheduling information is used to indicate the data of the 2nd UE The reception of channel, the second scheduling information forward the data information of the 2nd UE for the first UE;
Based on the second scheduling information and the first scheduling information, believed by the first UE to the data that the 2nd UE sends the 2nd UE Breath.
Specifically, base station sends the control information of the 2nd UE by the first UE to the 2nd UE, comprising:
Base station is according to configuration information, on the down control channel of the first UE and/or the down control channel of the first UE, leads to Cross the control information that the first UE sends the 2nd UE to the 2nd UE.
Specifically, base station receives the data information of the 2nd UE by the first UE forwarding, comprising:
Base station is according to configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, to First UE sends the second scheduling information and the first scheduling information, wherein the first scheduling information is used to indicate the data of the 2nd UE The reception of channel, the second scheduling information forward the data information of the 2nd UE for the first UE;
Based on the second scheduling information and the first scheduling information, the data letter by the 2nd UE of the first UE forwarding is received Breath.
Further, this method further include: by way of following at least one, instruction is sent out in down control channel for base station The scheduling information sent is for dispatching the 2nd UE of the first UE and/or scheduling:
With the RNTI in configuration information, down control channel is scrambled;
According to the down control channel configuration information of the first UE or the 2nd UE in configuration information, in the search space of the first UE Downlink control message is sent on the upper and/or search space of the 2nd UE;
According to rule predetermined, the information bit in the downlink control message DCI of down control channel carrying is generated, Wherein, the content carried in information bit include at least one of the following: the identity of the first UE, the identity of the 2nd UE, The identification information of mapping relations between the RNTI of first UE, RNTI, the first UE of the 2nd UE and the 2nd UE.
Specifically, base station is sent according to configuration information, the information of the 2nd UE of reception the first UE forwarding and/or the 2nd UE Information, comprising:
Base station is according to configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, to First UE sends downlink control message, and wherein downlink control message is used to indicate the scheduling information that the 2nd UE sends information;With/ Or,
Base station is according to configuration information, on the down control channel of the 2nd UE, sends downlink control message to the 2nd UE, Middle downlink control message is used to indicate the scheduling information that the 2nd UE sends information;And/or
Base station receives the information that the 2nd UE is sent according to scheduling information.
Further, this method further include: base station passes through the radio network temporary identifier RNTI and/or the first UE of the 2nd UE RNTI to the corresponding uplink authorization message of upstream data of corresponding 2nd UE and/or the downlink data pair of corresponding 2nd UE The downstream grants message answered is scrambled;And
Base station is according to down control channel configuration information, in the down control channel and/or the first UE of corresponding 2nd UE Down control channel in send scrambling after the 2nd UE the corresponding uplink authorization message of upstream data and/or the 2nd UE under Row data corresponding downstream grants message carries the corresponding scheduling information of upstream data of the 2nd UE in uplink authorization message, under The corresponding scheduling information of downlink data of the 2nd UE is carried in row authorization messages.
Further, this method further include:
According to the down control channel configuration information of the first UE, sending the first UE in the down control channel of the first UE is needed The downstream grants message for the downlink data that the uplink authorization message for the upstream data to be forwarded and/or the first UE need to forward.With/ Or,
According to the down control channel configuration information of the 2nd UE, sending the first UE in the down control channel of the 2nd UE is needed The downstream grants message for the downlink data that the uplink authorization message for the upstream data to be forwarded and/or the first UE need to forward,
Wherein, uplink authorization message carries the scheduling information of the first UE forwarding uplink data, and downstream grants message carries the The scheduling information of one UE converting downlink data.
Further, further includes:
Further, this method further include:
Base station makes the first UE obtain the scheduling transmitted between the first UE and the 2nd UE by way of following at least one Information:
In the down control channel of the 2nd UE send the 2nd UE upstream data service uplink authorization message and/or under The downstream grants message of row data service;
In the down control channel of the first UE send the 2nd UE upstream data service uplink authorization message and/or under The downstream grants message of row data service;
In the transmission authorization messages for sending data service between the first UE and the 2nd UE in the down control channel of the first UE.
Wherein, authorization messages are that base station is scrambled by the RNTI progress of the RNTI or the 2nd UE of the first UE.
Specifically, by dispatching the 2nd UE of the first UE and/or scheduling, and configuration information and/or control based on data information The configuration information of information processed carries out uplink receiving, comprising:
According to the scheduling information of the forwarded upstream of the first UE, the first UE is received on the resource location of scheduling in upstream data The upstream data sent on channel;
Wherein, by dispatching the 2nd UE of the first UE and/or scheduling, and configuration information and/or control based on data information The configuration information of information carries out downlink transmission, including
Pass through downlink data on the resource location of scheduling according to the corresponding scheduling information of downlink reception to the first UE Channel sends downlink data to the first UE.
The embodiment of the present invention additionally provides the first UE of one kind according in terms of third, comprising:
First receiving module, for receiving the configuration information of base station transmission, wherein configuration information is for receiving the 2nd UE's Information;
First receiving module is also used to receive the information of the 2nd UE according to configuration information;
Forwarding module, the information of the 2nd UE for forwarding the first receiving module to receive.
The embodiment of the present invention additionally provides a kind of base station according to the 4th aspect, comprising:
Sending module, for sending configuration information to the first UE;
Sending module is also used to send the information of the 2nd UE to the 2nd UE by the first UE according to configuration information;
Second receiving module, for receiving the information of the 2nd UE of the first UE forwarding according to configuration information;
Wherein, configuration information at the first UE for forwarding the information of the 2nd UE.The embodiment of the present invention is according to the 5th Aspect additionally provides a kind of terminal device, comprising: processor;And
Memory, is configured to storage machine readable instructions, instruction when executed by the processor so that processor executes the The method of the relay transmission of one aspect.
The embodiment of the present invention additionally provides a kind of base station, comprising: processor according to the 6th aspect;And
Memory, is configured to storage machine readable instructions, instruction when executed by the processor so that processor executes the The method of the relay transmission of two aspects.
The present invention provides the first UE of one kind and the methods of relay transmission, compared with prior art, the first UE of the present invention Receiving the configuration information that base station is sent, wherein configuration information is used to receive the information of the 2nd UE, then according to the configuration information, Receive the information of the 2nd UE, then forward the information of the 2nd UE received, thus base station and remote node (the 2nd UE) it Between can pass through relay node (the first UE) carry out relay transmission.
The present invention provides a kind of base station and the methods of relay transmission, compared with prior art, base station of the present invention Configuration information is sent to the first UE, then base station sends second to the 2nd UE by the first UE according to the configuration information The information of UE;And/or base station receives the information of the 2nd UE of the first UE forwarding, wherein institute according to the configuration information State information of the configuration information for forwarding the 2nd UE the first UE at, thus base station and remote node (the 2nd UE) it Between can pass through relay node (the first UE) carry out relay transmission.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments Obviously and it is readily appreciated that, in which:
Fig. 1 is a kind of method flow schematic diagram of relay transmission of the embodiment of the present invention;
Fig. 2 is the method flow schematic diagram of another relay transmission of the embodiment of the present invention;
Fig. 3 is that only uplink data channels use the schematic diagram relayed in the embodiment of the present invention;
Fig. 4 is the corresponding schematic diagram of method one for the scheduling message that the first UE obtains uplink in embodiment one;
Fig. 5 is the corresponding schematic diagram of method two for the scheduling message that the first UE obtains uplink in embodiment one;
Fig. 6 is the corresponding schematic diagram of method three for the scheduling message that the first UE obtains uplink in embodiment one;
Fig. 7 is two articles of uplink authorization message that the first UE is sent by base station in embodiment one, obtains showing for scheduling information It is intended to;
Fig. 8 is one article of uplink authorization message that the first UE is sent by obtaining base station, obtains the schematic diagram of scheduling information;
Fig. 9 is that relay node is forwarded the uplink data channels of remote node in the embodiment of the present invention, to base station Downstream data channel transmits the schematic diagram being forwarded;
Figure 10 is that relay node is forwarded the uplink data channels of remote node in the embodiment of the present invention, to base station Downstream data channel transmission and down control channel transmit the schematic diagram being forwarded;
Position and/or UE3 of the Figure 11 for the specific search space UE2 down control channel UE earliest after UE1 successfully decoded The position of the specific search space down control channel UE exists with the specific search space down control channel UE of UE1 successfully decoded The schematic diagram of same period;
Position and/or UE3 of the Figure 12 for the specific search space UE2 down control channel UE earliest after UE1 successfully decoded The position of the specific search space down control channel UE exists with the specific search space down control channel UE of UE1 successfully decoded The schematic diagram of different cycles;
Figure 13 is candidate bit of the downlink control message of UE2 and/or UE3 in the specific search space UE2 and/or UE3UE Set the schematic diagram for carrying out relay forwarding;
Figure 14 is that base station is that the resource location that the transmission of uplink/downlink data is scheduled is no earlier than after UE1 completion decoding most The schematic diagram of n subframe after the end position of the specific search space UE of an early UE2 and/or UE3;
Figure 15 is an example schematic of upstream data forwarding;
Figure 16 is the apparatus structure schematic diagram of the first UE in the embodiment of the present invention;
Figure 17 is the apparatus structure schematic diagram of base station in the embodiment of the present invention;
Figure 18 is the block diagram of the computing system of base station of the embodiment of the present invention or user equipment.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " terminal device " both include wireless communication The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line The honeycomb of device or other communication equipments;PCS (Personal Communications Service, PCS Personal Communications System), can With combine voice, data processing, fax and/or communication ability;PDA (Personal Digital Assistant, it is personal Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day It goes through and/or GPS (Global Positioning System, global positioning system) receiver;Conventional laptop and/or palm Type computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or its His equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation, Sea-freight and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.
In the prior art, there are the methods of two kinds of relay forwardings, comprising:
The first is that relay node has base station functions, the relay transfer method based on layer 3.In the method, from quilt The identity of the angle of the node (remote node is referred to as in the invention) of relaying, relay node is small for the physical layer with oneself Area identifies the base station of (Physical cell identity, PCID), and is able to achieve the repertoire of base station;From the angle of base station Degree, the identity of relay node are a node, and base station can be by the communication resource request of relay node and remote node as relaying The transmission request of node itself uplink and downlink business is scheduled, then is voluntarily further dispatched between remote node by relay node The communication resource.
Second method is terminal-to-terminal service (device in adjacent service (Proximity Service, ProSe) Device, D2D) design in communication system, the relay transfer method based on layer 3.In the method, relay node is not long-range Node does scheduling of resource, and relay node voluntarily chooses the transfer resource on the end link (Sidelink, SL) of remote node, or Base station is that relay node dispatches transfer resource on sidelink, transfer resource including sidelink control message and The resource of sidelink data-message, the transfer resource are located at the proprietary control resource pool and data resource pool of sidelink In.In the control message that relay node is sent, transmission location of the designation date message in data resource pond.Relay node covers Within the scope of lid, remote node and other not remote nodes are to completely control resource pool is listened to and blind examination is (except by half pair Outside the resource location that work limitation can not be listened to), corresponding data-message transmission money is determined according to the control message content received Source position receives data-message in respective resources position, and is delivered to node high level.Remote node high level solves in data-message The destination node information of carrying determines the destination node (full name in English: Destination node) that itself is the data-message; Other not remote node high levels for receiving the data-message solve the destination node information carried in data-message, determine itself not It is the destination node of the data-message, and the message is abandoned.
However, above two relay transmission method belongs to the relay forwarding based on layer 3, it is logical in remote node switching relaying It road (for example, being switched to directly transmission between base station, or switching relay node from relay transmission) and switches over (handover) when, service continuity can not be ensured;Can not be compatible with the physical layer design of the IoT UE of existing version, therefore When existing version IoT UE is as remote node, above two method, which cannot achieve, carries out relaying biography for remote I oT node It is defeated, the IoT UE of new version also must be both disposed as remote node, very significantly affect system cost;Furthermore due to not It supports to be based on duplicate design, when the link performance between remote I oT node and relay node is poor, Wu Fabao in IoT system Hinder relay node to the reliability of link between remote node, carries out uplink biography especially for the limited remote I oT of transmittability Defeated situation.
In addition, the method for being directed to the first relay transmission in the prior art, major defect are: relay node needs Realize the function of base station, including scheduling of resource and high-rise treatment mechanism, complexity is excessively high, influences cost;Furthermore base station type Relay node is usually poor to the support of relaying node mobility, dispose difficulty and cost with respect to UE type relay node more It is high.
For the method for second of relay transmission in the prior art, major defect is: remote node needs blind examination Complete sidelink controls resource pool, which may be bigger compared with the specific search space the UE of node, causes long-range Node increases for monitoring with the power consumption of blind examination, to influence the battery life of remote node, makes to the core demand of IoT system At negative effect.
The technical issues of in order to solve relay transmission in the prior art, the embodiment of the invention provides a kind of relay transmissions Method, comprising: the method for relay transmission data-message and control message, in cell coverage area, but uplink and/ Or downlink quality is poor, needs the remote node using high number of repetition, by configuring suitable relay node for it, makes There is good link-quality between remote node and relay node, transferred and/or received so as to reduce remote node When the number of repetition that needs, the power consumption of remote node is greatly saved;Furthermore it is saved by using the stronger relaying of UE ability Point improves the success rate of transmission, and/or reduces number of repetition, to promote the utilization efficiency to interface-free resources.For being covered in cell Remote node outside lid range can establish multi-hop link progress by configuring suitable relay node with base station Downstream transmission, to realize that the coverage area of cell is promoted.
Further, compared with two kinds of trunking methods in background technique, the beneficial effect comprise that the present invention is not Belong to the relay forwarding based on layer 3, the service continuity of remote node can be ensured by suitable High-rise Building Design;In big portion Divide under application scenarios, the physical layer design in the application allows to use the IoT UE of existing version as remote node, and Some deployment have good compatibility.
Fig. 1 is a kind of method flow schematic diagram of relay transmission of the embodiment of the present invention, comprising:
Step 101, the first UE receive the configuration information that base station is sent;Step 102, the first UE connect according to the configuration information Receive the information of the 2nd UE;The information for the 2nd UE that step 103, the first UE forwarding receive.
Wherein, configuration information is used to receive the information of the 2nd UE.
Wherein, configuration information includes at least one of the following:
The identity of 2nd UE;The radio network temporary identifier RNTI information of 2nd UE;The downlink of 2nd UE controls letter Road configuration information;The down control channel configuration information of first UE;The data channel configuration information of first UE;The data of 2nd UE Channel configuration information;
Wherein, down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
Data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downstream data channel Configuration information, data channel transmission mode, pilot frequency information, uplink can be weighed automatically with subframe, polyhybird with subframe, downlink It passes and controls area size in request HARQ process parameter and subframe.
Specifically, according to the configuration information, the information of the 2nd UE is received, comprising: according to the configuration information, obtain the The down control channel configuration information of two UE and/or the down control channel configuration information of the first UE, according to the 2nd UE of acquisition Down control channel configuration information and/or the first UE down control channel configuration information, monitor the downlink of the 2nd UE The down control channel of control channel and/or the first UE, decoding obtain the first scheduling information, wherein first scheduling information It is used to indicate the reception of the data channel of the 2nd UE;According to first scheduling information, the data information of the 2nd UE is received.
Specifically, the first UE receives the data information of the 2nd UE according to first scheduling information, comprising:
First UE receives the upper of the 2nd UE according to first scheduling information on the uplink data channels of the 2nd UE Row data information;And/or
First UE is according to first scheduling information, in the downstream data channel of the 2nd UE or the downlink data letter of the first UE The downlink data information of the 2nd UE is received on road.
Wherein, the upstream data information of the 2nd UE is the 2nd UE according to from the directly received control information in base station It sends, alternatively, the upstream data information of the 2nd UE is the control information that the 2nd UE is forwarded according to the first UE It sends.
Specifically, the information of the 2nd UE received described in forwarding, comprising: the second scheduling information that base station is sent is received, Wherein, second scheduling information forwards the data information of the 2nd UE for the first UE;According to second scheduling information, forwarding The data information of the 2nd UE received.
Wherein, the data information of the 2nd UE is according to from the directly received control information in base station at the 2nd UE It is received, alternatively, the data information of the 2nd UE is the control information forwarded according to the first UE at the 2nd UE It is received.
Specifically, receive base station send the second scheduling information, comprising: monitor the 2nd UE down control channel and/or The down control channel of first UE, decoding obtain the second scheduling information.
Specifically, the information of the 2nd UE received described in forwarding, comprising: believe in the data of the 2nd UE received Before breath, media access control mac frame head or wireless spread-spectrum technology RLC frame head are added;The 2nd UE after forwarding addition frame head Data information.
Specifically, according to the configuration information, the information of the 2nd UE is received, comprising: according to the configuration information, obtain Take the down control channel configuration information of the 2nd UE and/or the down control channel configuration information of the first UE;According to the of acquisition The down control channel configuration information of two UE and/or the down control channel configuration information of the first UE monitor the downlink of the first UE The down control channel of control channel and/or the 2nd UE, decoding obtain the Downlink Control Information of the 2nd UE;
Specifically, the information of the 2nd UE received described in forwarding, comprising: on the down control channel of the 2nd UE, to 2nd UE forwards the Downlink Control Information of the 2nd UE.
Further, receive base station send configuration information after, this method further include: according in following information extremely Few one kind, judges whether the control information decoded according to the configuration information is used to dispatch the first UE and/or the 2nd UE: institute The search for stating the information bit carried in control message, the scrambling RNTI of the control message and the decoding control message is empty Between.
Wherein, the content carried in the information bit includes at least one of the following: the identity of the first UE, the 2nd UE Identity, the RNTI of the first UE, mapping relations between RNTI, the first UE of the 2nd UE and the 2nd UE mark letter Breath.
The embodiment of the invention provides a kind of methods of relay transmission, compared with prior art, the embodiment of the present invention first UE receives the configuration information that base station is sent, wherein configuration information is used to receive the information of the 2nd UE, and then basis should match confidence Breath, receives the information of the 2nd UE, then forwards the information of the 2nd UE received, thus base station and remote node (the 2nd UE) Between can pass through relay node (the first UE) carry out relay transmission.
Fig. 2 is the method flow diagram of another relay transmission in the embodiment of the present invention, is executed by base station, comprising:
Step 201, base station send configuration information to the first UE;Step 202, base station pass through institute according to the configuration information The first UE is stated to the 2nd UE information for sending the 2nd UE and/or base station according to the configuration information, receives the first UE forwarding The 2nd UE information.
Wherein, the configuration information at the first UE for forwarding the information of the 2nd UE.
Wherein, the configuration information includes at least one of following:
The identity of 2nd UE, the radio network temporary identifier RNTI information of the 2nd UE, the downlink of the 2nd UE control letter The data of road configuration information, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Channel configuration information;
Wherein, the down control channel configuration information includes at least one of the following: relay physical downlink control channel search space class Type, starting subframe, offset, can use subframe, Downlink Control Information DCI format and downlink control at maximum number of repetitions Rmax Channel resource configuration information;
The data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downlink data The configuration information of channel, the transmission mode of data channel, pilot frequency information, uplink can use subframe, polyhybird certainly with subframe, downlink Area size is controlled in dynamic retransmission request HARQ process parameter and subframe.
Specifically, base station sends the letter of the 2nd UE by the first UE according to the configuration information to the 2nd UE Breath, include the following:
Believe according to the configuration information, by the first UE to the control that the 2nd UE sends the 2nd UE base station Breath and data information;Alternatively,
According to the configuration information, the 2nd UE of Xiang Suoshu sends control information for the base station, and by the first UE to described 2nd UE sends the data information of the 2nd UE.
Specifically, base station receives the information of the 2nd UE of the first UE forwarding according to the configuration information, comprising:
Believe according to the configuration information, by the first UE to the control that the 2nd UE sends the 2nd UE base station Breath, and receive the data information of the 2nd UE of the first UE forwarding;Alternatively,
According to the configuration information, the 2nd UE of Xiang Suoshu sends control information, and receives and turned by the first UE for the base station The data information of the 2nd UE of hair.
Specifically, base station sends the data information of the 2nd UE by the first UE to the 2nd UE, comprising: base station root According to the configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, sent to the first UE Second scheduling information and the first scheduling information, wherein first scheduling information receives the data of the 2nd UE for the first UE Information, second scheduling information forward the data information of the 2nd UE for the first UE;Based on second scheduling information and First scheduling information sends the data information of the 2nd UE by the first UE to the 2nd UE.
Specifically, base station sends the control information of the 2nd UE by the first UE to the 2nd UE, comprising: base station root According to the configuration information, on the down control channel of the first UE and/or the down control channel of the first UE, by the first UE to 2nd UE sends the control information of the 2nd UE.
Specifically, base station receives the data information of the 2nd UE by the first UE forwarding, comprising: base station is according to Configuration information sends second to the first UE and adjusts on the down control channel of the 2nd UE and/or the down control channel of the first UE Spend information and the first scheduling information, wherein first scheduling information is used to indicate the reception of the data channel of the 2nd UE, institute State the data information that the second scheduling information forwards the 2nd UE for the first UE;It is dispatched based on second scheduling information and first Information receives the data information of the 2nd UE by the first UE forwarding.
The embodiment of the invention provides a kind of methods of relay transmission, compared with prior art, base station of the embodiment of the present invention Base station sends configuration information to the first UE, and then base station is sent by the first UE to the 2nd UE according to the configuration information The information of 2nd UE;And/or base station receives the information of the 2nd UE of the first UE forwarding according to the configuration information, In, the configuration information at the first UE for forwarding the information of the 2nd UE, thus base station and remote node (second UE relay transmission can be carried out by relay node (the first UE) between).
The embodiment of the invention provides a kind of relay transfer methods for being not based on layer 3.The content of the embodiment of the present invention includes The relay forwarding of the relay forwarding of uplink data channels, the relay forwarding of downstream data channel and down control channel.
In the embodiment of the present invention, the first UE can be the relay node with relay capabilities in cell coverage area, 2nd UE can be the remote node in cell coverage area or outside cell coverage area.Relay node monitors what base station was sent Down control channel directly or indirectly obtains the scheduling information of uplink data channels of remote node, downstream data channel The scheduling information and the long-range section of relay node forwarding of the uplink data channels of scheduling information and relay node forwarding remote node The scheduling information of the downstream data channel of point carries out upper between relay node and base station according to the content of four partial scheduling information Row is sent and/or transmission and/or reception between downlink reception and relay node and remote node.Remote node is monitored base station and is sent And/or relay node forwarding down control channel, directly obtain remote node uplink data channels scheduling information And/or the scheduling information of downstream data channel, uplink transmission and/or downlink reception are carried out according to the content of scheduling information.Base station By being transmitted directly to the down control channel of relay node and/or directly transmitting or relayed node is transmitted to remote node Down control channel, the uplink of the transmission between remote node and relay node/between reception and relay node and base station is sent/under Row receive be scheduled, according to the content of the content of the scheduling information to relay node and/or the scheduling information of remote node into Row uplink receiving or downlink are sent.
In the embodiment of the present invention, each remote node carries out relay forwarding using a relay node;Multiple remote nodes The relay node utilized, which can be an identical namely relay node, can provide relay function for multiple remote nodes.
The embodiment of the present invention is suitable for three kinds of application scenarios: scene one, relay node is only to the upstream data of remote node Transmission is forwarded, and the down control channel transmission of downstream data channel transmission and base station to base station is without turning Hair;Scene two, relay node are forwarded the uplink data channels transmission of remote node, pass to the downstream data channel of base station It is defeated to be forwarded, the down control channel of base station is transmitted without forwarding;Scene three, relay node are to the uplink of remote node Data channel transmission, the downstream data channel transmission to base station, the down control channel transmission to base station are forwarded.
It is unrelated whether the uplink/downlink transmission of the scene classification method and other signals channel carries out relay forwarding, for example, In above several scenes, support relay node is to the downstream broadband signals/channel and synchronization signal/channel of base station without turning Hair, remote node voluntarily obtain downlink broadcast message and synchronization signal from base station.
Below based on application scenarios type, the specific introduction of relay transmission is carried out by several specific embodiments, it is real Applying example one is the method that relay transmission is once carried out in scene;Embodiment two is the method that relay transmission is carried out under scene two; Embodiment three is the method that relay transmission is carried out under scene three, specific embodiment as described below.
Embodiment one
In the scene for only carrying out uplink relay forwarding This embodiment describes relay node, from remote node, relay node Introduce the mode that relay transmission is carried out under the scene respectively with the angle of base station.
(1) for uplink data channels/Uplink Shared Channel:
The behavior of remote node includes following operating procedure:
The scheduling information that behavior when 1. remote node presses non-relay obtains uplink from base station, comprising:
Remote node obtains number from base station by wireless heterogeneous networks (Radio Resource Control, RRC) signaling According to channel configuration information and down control channel configuration information, the down control channel of remote node is monitored according to the configuration information The specific search space UE, with radio network temporary identifier (the Radio Network Temporary of remote node Identifier, RNTI) blind examination down control channel candidate collection, decoding obtains the uplink authorization message of base station transmission, from this The scheduling information of uplink data channels is obtained in uplink authorization message.
2. remote node sends upstream data message to base station, comprising:
Remote node is sent on the resource location of scheduling according to the content of the uplink data channels scheduling information of acquisition Row data channel.
The behavior of relay node includes following operating procedure:
1. the configuration information that relay node obtains relay node and remote node from base station, comprising:
Relay node by RRC signaling from base station obtain: the identity of remote node and/or RNTI, relay node and The data channel configuration information of the down control channel configuration information of remote node, relay node and remote node.
Wherein, the down control channel configuration information of remote node includes at least one of the following: that down control channel is searched for Space type, maximum number of repetitions Rmax originate subframe, can use subframe, Downlink Control Information DCI format, down control channel Resource distribution (such as running time-frequency resource position: narrowband (narrowband), carrier wave (carrier), Physical Resource Block (Physical Resource Block, PRB), it controls resource collection (Control Resource Set, CORESET), wherein CORESET matches Set the activation or release, timing information, ID, frequency domain position, primary sign, duration, resource element that parameter includes: CORESET Plain group (Resource Element Group, REG), control channel unit (Control Channel Element, CCE) arrives REG map type, precoder granularity, interleaver column, offset index, transmission configuration indicate (Transmission Configuration Indication, TCI) status indicator, demodulated reference signal (Demodulation Reference Signal, DMRS) scrambling ID).
Wherein, the data channel configuration information of remote node includes at least one of the following: uplink and/or downstream data channel Configuration information, the transmission mode (such as transmission mode 1~9) of data channel, pilot frequency information, uplink can use subframe and/or downlink Subframe, polyhybird automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process parameter, son can be used Area size is controlled in frame.
Wherein, when relay node has the ability for carrying out downlink reception on uplink band or sub-frame of uplink, relay node The specific search space down control channel UE can be configured to by base station on up-link carrier or sub-frame of uplink.
2. the scheduling information that relay node obtains the uplink of remote node from base station, comprising:
Relay node is empty according to the specific search of down control channel UE that the configuration information of remote node monitors remote node Between, with the RNTI blind examination down control channel candidate collection of remote node, decoding obtains the uplink of the remote node of base station transmission Authorization messages obtain the scheduling information of the uplink data channels of remote node from the uplink authorization message;
And/or
Relay node is empty according to the specific search of down control channel UE of the configuration information trunk monitoring node of relay node Between, with the RNTI or relay node of relay node and the RNTI of remote node, blind examination down control channel candidate collection, decoding The uplink authorization message of the remote node of base station transmission is obtained, the upstream data of remote node is obtained from the uplink authorization message The scheduling information of channel.
Wherein, when relay node be multiple remote nodes carry out relay forwarding when, relay node all remote nodes and/ Or monitored in the specific search space down control channel UE of relay node, with relay node and/or all remote nodes RNTI carry out blind examination.
Wherein, relay node is in the specific search space down control channel UE of relay node, with relay node RNTI blind examination success, decoding obtain uplink authorization message, determine the uplink according to the information bit carried in uplink authorization message Authorization messages are destined to the remote node;
Or, relay node is in the specific search space down control channel UE of relay node, with the RNTI of remote node Blind examination success, decoding obtain uplink authorization message, according to for blind examination RNTI and/or uplink authorization message in the information that carries Bit determines that the uplink authorization message is destined to the remote node;
Or, relay node is in the specific search space down control channel UE of remote node, it is corresponding with search space The RNTI blind examination success of the remote node, decoding obtain uplink authorization message, according to the specific search space UE and/or are used for blind examination RNTI and/or uplink authorization message in the information bit that carries, determine that the uplink authorization message is destined to the remote node 's.
Wherein, the information bit carried in uplink authorization message can be the identity (such as UE ID) of remote node, or The corresponding identification information of mapping relations between the RNTI of remote node, or instruction relay node and remote node, the identification information It can be the index of mapping relations that base station configures or preset.
3. the scheduling information that relay node obtains the uplink relay forwarding behavior of relay node, comprising:
Relay node obtains the scheduling information of the uplink relay forwarding behavior directly indicated from base station;
And/or relay node obtains the scheduling information for the uplink relay forwarding behavior that base station indicates indirectly.
Wherein, relay node can obtain the scheduling information of the part uplink relay forwarding behavior directly indicated from base station, The scheduling information of the rest part uplink relay forwarding behavior indicated indirectly.
Wherein, the scheduling information of the uplink relay directly indicated forwarding behavior is obtained from base station for relay node, comprising:
Relay node is empty according to the specific search of down control channel UE that the configuration information of remote node monitors remote node Between, with the RNTI blind examination down control channel candidate collection of relay node, decoding obtains the uplink of the relay node of base station transmission Authorization messages obtain the scheduling information of the uplink data channels for forwarding of relay node from the uplink authorization message;With/ Or,
Relay node is empty according to the specific search of down control channel UE of the configuration information trunk monitoring node of relay node Between, with the RNTI of both the RNTI or relay node of relay node and remote node, blind examination down control channel Candidate Set It closes, decoding obtains the uplink authorization message of the relay node of base station transmission, and relay node is obtained from the uplink authorization message Scheduling information for forwarding uplink data channel.
Wherein, when relay node be multiple remote nodes carry out relay forwarding when, relay node all remote nodes and/ Or monitored in the specific search space down control channel UE of relay node, with relay node and/or all remote nodes RNTI carry out blind examination.The uplink authorization message and more than one relaying section of more than one remote node is successfully decoded in relay node The uplink authorization message of point is used by the search space and/or the blind examination uplink authorization message that receive the uplink authorization message The information bit that is carried in RNTI and/or uplink authorization message and/or the time sequencing or frequency domain for receiving the uplink authorization message Resource location, the mapping between the two of the uplink authorization message of the uplink authorization message and relay node that determine remote node are closed System.
Wherein, relay node is in the specific search space down control channel UE of relay node, with relay node RNTI blind examination success, decoding obtain uplink authorization message, determine the uplink according to the information bit carried in uplink authorization message Authorization messages are destined to relay node;
Or, relay node is in the specific search space down control channel UE of relay node, with the RNTI of remote node Blind examination success, decoding obtain uplink authorization message, according to for blind examination RNTI and/or uplink authorization message in the information that carries Bit determines that the uplink authorization message is destined to relay node;
Or, relay node is in the specific search space down control channel UE of remote node, it is corresponding with search space The RNTI blind examination success of the remote node, decoding obtain uplink authorization message, according to the specific search space UE and/or are used for blind examination RNTI and/or uplink authorization message in the information bit that carries, determine that the uplink authorization message is destined to relay node.
Wherein, the information bit carried in uplink authorization message can be the identity (such as UE ID) of relay node, or The corresponding identification information of mapping relations between the RNTI of relay node, or instruction relay node and remote node, the identification information It can be the index of mapping relations that base station configures or preset.
Wherein, the scheduling information for the uplink relay forwarding behavior that base station indicates indirectly is obtained for relay node, comprising:
Relay node obtains the scheduling information of the uplink data channels of remote node from base station;Relay node is according to long-range section The scheduling information and preset mapping relations of the uplink data channels of point calculate and determine that the uplink relay of relay node forwards row For scheduling information;
Or, relay node obtains the scheduling information of the uplink relay forwarding behavior of relay node from base station;Relay node root According to the scheduling information and preset mapping relations of the uplink relay forwarding behavior of relay node, calculates and determine the upper of remote node The scheduling information of row data channel;
4. relay node receives the upstream data message that remote node is sent to base station, comprising:
Relay node is according to the content of the uplink data channels scheduling information of the remote node of acquisition, in the resource-niche of scheduling It sets the uplink data channels for receiving remote node transmission and is successfully decoded;
Wherein, the resource location of scheduling can be up-link carrier or sub-frame of uplink, and relay node is needed to have upper Received ability is carried out on row carrier wave or sub-frame of uplink.
5. the upstream data message that relay node forwards remote node to base station, comprising:
Relay node according to the content of the uplink data channels scheduling information of the relay forwarding behavior of the relay node of acquisition, The uplink data channels sent on the carrier wave of scheduling to base station forwarding remote node.
The behavior of base station includes following operating procedure:
1. base station carries out channel configuration to remote node and relay node, comprising:
Base station sends the data channel configuration information and down control channel of remote node by RRC signaling to remote node Configuration information sends the data channel configuration information and down control channel of relay node and/or remote node to relay node Configuration information.
2. base station is scheduled the uplink of remote node, comprising:
Base station is specific in the down control channel UE of remote node according to the down control channel configuration information of remote node The uplink authorization message that the upstream data service of remote node is sent in search space is scrambled using the RNTI of remote node, should Uplink authorization message carries the scheduling information to the upstream data of remote node.
3. base station is scheduled the forwarded upstream of relay node, comprising:
Base station is specific in the down control channel UE of relay node according to the down control channel configuration information of relay node The uplink authorization message that the upstream data service that relay node needs to forward is sent in search space, using relay node or remotely The RNTI of node is scrambled, which carries the scheduling information to the upstream data of relay node;
Or, down control channel configuration information of the base station according to remote node, in the down control channel UE of remote node The uplink authorization message that the upstream data service that relay node needs to forward is sent in specific search space, uses relay node RNTI scrambling, the uplink authorization message carry the scheduling information to the upstream data of relay node.
Wherein, in the uplink scheduling message of the relay node, use information bit directly indicates or passes through scrambling for base station RNTI indicates the transmission or some specific remote node that the corresponding uplink of the scheduling message is relay node itself indirectly The uplink that forwards of needs.Wherein, the content that use information bit directly indicates can be relaying/remote node identity Identify the corresponding identification information of mapping relations between (such as UE ID) or RNTI, or instruction relay node and remote node, the mark Knowing information can be the index of base station configuration or preset mapping relations.
Wherein, when relay node is that multiple remote nodes carry out relay forwarding, extraly, base station is according to multiple long-range Node sends the sequence of scheduling message, in the specific search space down control channel UE of relay node successively to relay node Send the uplink scheduling message of relay node.
4. base station is scheduled the transmission between relay node and remote node, comprising:
Base station is scheduled by the uplink to remote node, and configures scheduling of the relay node to remote node Message is monitored;Also both, base station makes relay node correspondingly obtain remote node and relaying by the scheduling to remote node The scheduling information of transmission between node is transmitted without additional scheduling message;
Or, base station is in addition to the uplink to remote node is scheduled, extraly, in the downlink of relay node In the specific search space control channel UE, send the upstream data service of remote node uplink authorization message or relay node to The transmission authorization messages of the data service of remote node, with the RNTI of relay node or the RNTI of remote node to the authorization messages It is scrambled.
Wherein, in the scheduling message of transmission of the base station between the relay node and remote node, use information bit is direct Instruction indicates the scheduling message for dispatching of relays node or some specific remote node indirectly by scrambling RNTI.Its In, the content that use information bit directly indicates can be relaying/remote node identity (such as UE ID) or RNTI, or Indicate the corresponding identification information of mapping relations between relay node and remote node, the identification information can be base station configuration or The index of preset mapping relations.
Wherein, when relay node is that multiple remote nodes carry out relay forwarding, extraly, base station is according to multiple long-range Node sends time sequencing and/or the frequency domain resource position of scheduling message, searches the down control channel UE of relay node is specific The scheduling transmitted between relay node and remote node is successively sent or sent in frequency domain corresponding position in rope space to relay node Message.
Wherein, when base station is scheduled the transmission between relay node and remote node, transmission is carried in scheduling message Whole configuration informations, or carry the part configuration information of transmission and pass through the uplink to remote node according to preset mapping relations The scheduling message of transmission indicates that remaining is not carried in scheduling message to the scheduling message of the uplink of relay node indirectly In part configuration information.
Wherein, base station is to the scheduling information of the transmission between relay node and remote node and base station to relay node and base station Between the scheduling information of transmission can carry in same downlink control message.When relay node is the progress of multiple remote nodes The scheduling information of a transmission between remote node and relay node is carried when relay forwarding, in a downlink control message, and Relay node is the scheduling information that the remote node carries out relay forwarding;Or, being carried in a downlink control message more than one The scheduling information and relay node of transmission between remote node and relay node are that the more than one remote node carries out in repeatedly After the scheduling information of forwarding.It is specific in the direct indicating downlink control message of base station use information field in downlink control message For being scheduling to relay node or specific remote node, or in downlink control message, not direct indicating downlink control disappears field Specific fields in breath match confidence according to predefined for being scheduling to relay node or specific remote node, by relay node It ceases the specific fields determined in downlink control message and is used for dispatching of relays node or specific remote node.Extraly, under one The scheduling information and relay node that a transmission between remote node and relay node is carried in row control message are the long-range section When point carries out the scheduling information of relay forwarding, base station, which uses, indicates the remote node for the scrambled RNTI of the downlink control message Identity information, relay node determine the specific fields in downlink control message for dispatching of relays according to predefined configuration information Node or some remote node determine the identity information of the remote node by scrambling RNTI.
5. base station receives the forwarded upstream of relay node, comprising:
Base station receives relaying according to the scheduling information content of the forwarded upstream to relay node on the resource location of scheduling The uplink data channels that node is sent.
Additional description is not belonging to be sequentially arranged between the above operating procedure.The real time of each operating procedure Sequence needs to be determined according to the Scheduling content and relay node of base station and the down control channel configuration information content of remote node.
(2) for downstream data channel/DSCH Downlink Shared Channel:
Behavior when remote node presses non-relay carries out the reception of down control channel and downstream data channel, comprising:
Remote node obtains down control channel configuration information from base station by RRC signaling and downstream data channel matches confidence Breath;Remote node monitors the specific search space down control channel UE of remote node, with remote node according to configuration information RNTI blind examination down control channel candidate collection, decoding obtains the downstream grants message of base station transmission, from the downstream grants message The middle scheduling information for obtaining downstream data channel;Remote node according to the content of the downstream data channel scheduling information of acquisition, Downstream data channel is received on the resource location of scheduling.
Further, relay node obtains the scheduling information of the downstream data channel of remote node from base station, without this The reception of downstream data channel and relay forwarding.
Base station is to the received scheduling information of downstream data channel for sending remote node to remote node, no longer separately in The scheduling information of the downstream data channel of remote node is sent after node.
In the following, illustrating that the relaying of upstream data information turns in conjunction with concrete example based on the application scenarios that embodiment one is directed to Forwarding method, as shown in Figure 3.Uplink Shared Channel PUSCH in this example is also possible to EPUSCH, MPUSCH, NPUSCH.At this In inventive embodiments without limitation.
In the example, UE1 is the relay node with relay capabilities in cell coverage area, and UE2 and UE3 are small Remote node in area's coverage area.UE2 and UE3 uses the relay forwarding of UE1 progress uplink data channels PUSCH, directly It connects from base station and receives down control channel PDCCH and downstream data channel PDSCH.
UE1 is normally linked into cell, has relay function, has and carries out downlink reception on uplink band or sub-frame of uplink And/or the ability sent in band downlink or downlink subframe, and its ability is passed through into high-level signaling signals base.UE1 from Base station obtains the RNTI of itself, down control channel configuration information and data channel configuration information.Wherein, the downlink control of UE1 The specific search space channel UE can be configured on up-link carrier/sub-frame of uplink by base station, also can be configured as in downlink On carrier wave/downlink subframe.
Base station configuration UE 1 carries out the relay forwarding of the transmitting uplink data of UE2 and UE3.UE1 passes through RRC signaling from base station Obtain the configuration information of UE2 and the configuration information of UE3, comprising: UE ID, RNTI, down control channel configuration information, data letter Road configuration information.
Wherein, the down control channel configuration information of UE2 and/or UE3 includes: relay physical downlink control channel search space type, Maximum number of repetitions Rmax originates subframe, can use subframe, Downlink Control Information DCI format, down control channel resources configuration (such as running time-frequency resource position: narrowband (narrowband), carrier wave (carrier), PRB control resource collection (Control Resource Set, CORESET), wherein CORESET configuration parameter include: CORESET activation or release, timing information, ID, frequency domain position, primary sign, duration, resource element groups (Resource Element Group, REG), control channel Unit (Control Channel Element, CCE) arranges to REG map type, precoder granularity, interleaver, deviates rope Draw, transmission configuration instruction (Transmission Configuration Indication, TCI) status indicator, demodulation reference letter Number (Demodulation Reference Signal, DMRS) scrambles ID).
Wherein, the data channel configuration information of UE2 and/or UE3 includes at least one of the following: uplink and/or downlink data The configuration information of channel, the transmission mode (such as transmission mode 1~9) of data channel, pilot frequency information, uplink and/or downlink are available Subframe, more HARQ process parameters, subframe is interior to control area size.
UE2 and UE3 have the ability for being linked into cell in cell coverage area, and UE2 and UE3 are normally linked into cell, The RNTI of itself, down control channel configuration information and data channel configuration information are obtained from base station.
UE2 and UE3 by base station be configured to by UE1 carry out transmitting uplink data relay forwarding, the configuration be it is transparent, Namely UE2 and UE3 is carried out without knowing that its transmitting uplink data is completed via relay forwarding by original design of unrepeatered system Transmitting uplink data.
UE1, UE2 and UE3 are monitored and are made in the search space of configuration in the down control channel that base station configures With RNTI blind examination, the scheduling message of uplink is obtained.
Wherein, the concrete mode that UE1 obtains the scheduling message of uplink includes: method one (as shown in Figure 4), method two (as shown in Figure 5) and method three (as shown in Figure 6):
Method one: UE1 monitors the specific search space UE (USS) of UE1 and UE2 and UE3, with corresponding with search space RNTI carries out blind examination;
For example, base station sends uplink authorization message #1 and #3 in the specific search space UE of UE1 in the method, use The RNTI of UE1 is scrambled, and being orderly used to instruction UE1 is that UE2 carries out the scheduling information of forwarded upstream and UE1 is that UE3 carries out uplink The scheduling information of forwarding;Uplink authorization message #2 is sent in the specific search space UE of UE2, is scrambled, is used using the RNTI of UE2 In the scheduling information of the transmitting uplink data of instruction UE2;Uplink authorization message #4 is sent in the specific search space UE of UE3, It is scrambled using the RNTI of UE3, is used to indicate the scheduling information of the transmitting uplink data of UE3.
When UE1 is successful using the RNTI blind examination of UE2 in the specific search space UE of UE2, decoding obtains uplink authorization and disappears When ceasing (UL grant) #2, it is believed that the uplink authorization message is used to indicate the scheduling information of the transmitting uplink data of UE2, according to upper The content of row authorization messages #2 receives Uplink Shared Channel (PUSCH) transmission of UE2;
When UE1 is successful using the RNTI blind examination of UE3 in the specific search space UE of UE3, decoding obtains uplink authorization and disappears When ceasing #4, it is believed that the uplink authorization message is used to indicate the scheduling information of the transmitting uplink data of UE3, disappears according to uplink authorization The content for ceasing #4 receives the Uplink Shared Channel transmission of UE3;
When UE1 is successful twice using the RNTI blind examination of UE1 in the specific search space UE of UE1, decoding is obtained on two When row authorization messages #1 and #3, it is believed that the uplink authorization message is used to indicate the scheduling information of the uplink relay forwarding of UE1.According to The time sequencing for receiving the uplink authorization message of UE2 and UE3 is UE2 earlier than UE3, it is believed that uplink authorization message #1 is used to indicate UE1 forwards the scheduling information (and uplink authorization message #2 is corresponding) of the upstream data of UE2, and uplink authorization message #3 is used to indicate UE1 forwards the scheduling information (and uplink authorization message #4 is corresponding) of the upstream data of UE3.According in the uplink authorization message Hold, the upstream data of the UE2 and UE3 that are successfully decoded are forwarded.
In the method, additionally it is possible that base station is sent in two other in the specific search space UE of UE2 and UE3 Row authorization messages (such as #5 and #6) are scrambled using the RNTI of UE1, and being orderly used to instruction UE1 is the tune that UE2 carries out forwarded upstream It will not be two to this when spending the scheduling information that information and UE1 carry out forwarded upstream for UE3, UE2 and itself RNTI blind examination of UE3 Message is decoded.When UE1 is successful using the RNTI blind examination of UE1 in the specific search space UE of UE2, decoding obtains uplink and awards When weighing message, it is believed that the uplink authorization message is used to indicate the scheduling information of the Uplink Shared Channel of UE1 forwarding UE2.Similarly, UE1 is using the RNTI blind examination success of UE1 in the specific search space UE of UE3, and decoding obtains uplink authorization message, it is believed that on this Row authorization messages are used to indicate the scheduling information of the Uplink Shared Channel of UE1 forwarding UE3.
Method two: UE1 monitors the specific search space UE of UE1, and UE1, UE2 are used in the specific search space UE of UE1 With the RNTI blind examination of UE3;
For example, base station sends the uplink authorization message #1 (RNTI of UE1 in the specific search space UE of UE1 in the method Scrambling), uplink authorization message #2A (RNTI of UE2 is scrambled), uplink authorization message #3 (RNTI of UE1 is scrambled) and uplink authorization Message #4A (RNTI of UE3 is scrambled), being orderly used to instruction UE1 is the scheduling information that UE2 carries out forwarded upstream, the upper line number of UE2 According to the scheduling information of transmission, UE1 is the scheduling information that UE3 carries out forwarded upstream, the scheduling information of the transmitting uplink data of UE3; Uplink authorization message #2 is sent in the specific search space UE of UE2, is scrambled using the RNTI of UE2, is used to indicate the uplink of UE2 The scheduling information of data transmission;Uplink authorization message #4 is sent in the specific search space UE of UE3, is added using the RNTI of UE3 It disturbs, is used to indicate the scheduling information of the transmitting uplink data of UE3.
For UE1 using the RNTI blind examination success of UE2 in the specific search space UE of UE1, decoding obtains uplink authorization message # 2A, it is believed that the uplink authorization message is used to indicate the scheduling information of the transmitting uplink data of UE2, according to uplink authorization message #2A Content, receive UE2 Uplink Shared Channel (PUSCH) transmission and successfully decoded;
For UE1 using the RNTI blind examination success of UE3 in the specific search space UE of UE1, decoding obtains uplink authorization message # 4A, it is believed that the uplink authorization message is used to indicate the scheduling information of the transmitting uplink data of UE3, according to uplink authorization message #4A Content, receive UE3 Uplink Shared Channel transmission and successfully decoded;
UE1 is successful twice using the RNTI blind examination of UE1 in the specific search space UE of UE1, and decoding obtains two uplinks Authorization messages #1 and #3, it is believed that the uplink authorization message is used to indicate the scheduling information of the uplink relay forwarding of UE1.According to reception The time sequencing of the uplink authorization message of UE2 and UE3 is UE2 earlier than UE3, it is believed that uplink authorization message #1 is used to indicate UE1 and turns The scheduling information (and uplink authorization message #2A is corresponding) of the upstream data of UE2 is sent out, uplink authorization message #3 is used to indicate UE1 Forward the scheduling information (and uplink authorization message #4A is corresponding) of the upstream data of UE3.According in the uplink authorization message Hold, the upstream data of the UE2 and UE3 that are successfully decoded are forwarded.
It is additional it is possible that including the target for directly indicating the uplink authorization message in uplink authorization message in the method The information bit of UE can be reflecting between identity (such as UE ID) or the RNTI of UE, or instruction relay node and remote node Penetrate the index of relationship.
For example, the mapping relations for being UE1-UE2 configuration index is 1 when base station configuration UE 1 is that UE2/3 carries out uplink relay, Mapping relations configuration index to UE1-UE3 is 2, and the mapping relations configuration index to UE1 itself is 0.
For UE1 using the RNTI blind examination success of UE3 in the specific search space UE of UE1, decoding obtains uplink authorization message # 4A, according to directly indicated in the uplink authorization message information bit of target UE be mapping relations configuration index and value be 2, it is believed that Uplink authorization message #4A is used to indicate the scheduling information of the Uplink Shared Channel of UE3;Alternatively, according in uplink authorization message #4A The information bit of directly instruction target UE is mapping relations configuration index and value is 0, it is believed that uplink authorization message #4A is used to indicate UE1 forwards the scheduling information of the upstream data of UE3 to base station.
For example, the mapping for being UE1 and all long-range UE is closed when base station configuration UE 1 is that UE2 and/or UE3 carries out uplink relay In system's configuration, the index of relay node namely UE1 itself are 0, and the index of all long-range UE namely UE2 and/or UE3 is 1.
For UE1 using the RNTI blind examination success of UE3 in the specific search space UE of UE1, decoding obtains uplink authorization message # 4A recognizes according to directly indicating that the information bit of target UE is mapping relations configuration index and value is 1 in uplink authorization message #4A The scheduling information of the Uplink Shared Channel of UE3 is used to indicate for uplink authorization message #4A;Alternatively, according to uplink authorization message #4A In directly indicate that the information bit of target UE is mapping relations configuration index and value is 0, it is believed that uplink authorization message #4A is for referring to Show that UE1 forwards the scheduling information of the upstream data of UE3 to base station.
For example, UE1 is successful using the RNTI blind examination of UE1 in the specific search space UE of UE1, disappeared according to the uplink authorization The information bit that target UE is directly indicated in breath is the RNTI of UE3, it is believed that the uplink authorization message is used to indicate UE1 forwarding UE3's The scheduling information of upstream data.
Method three: UE1 monitors the specific search space UE of UE1, uses UE1's in the specific search space UE of UE1 RNTI blind examination, and obtain the information bit that target UE is directly indicated in uplink authorization message;
For example, base station sends uplink authorization message #1, #2A, #3 and # in the specific search space UE of UE1 in the method 4A is scrambled using the RNTI of UE1, and being orderly used to instruction UE1 is the scheduling information that UE2 carries out forwarded upstream, the upper line number of UE2 According to the scheduling information of transmission, UE1 is the scheduling information that UE3 carries out forwarded upstream, the scheduling information of the transmitting uplink data of UE3; Wherein, uplink authorization message #2 is sent in the specific search space the UE of UE2, is scrambled using the RNTI of UE2, is used to indicate UE2 Transmitting uplink data scheduling information;Uplink authorization message #4 is sent in the specific search space UE of UE3, uses UE3's RNTI scrambling, is used to indicate the scheduling information of the transmitting uplink data of UE3.
For UE1 using the RNTI blind examination success of UE1 in the specific search space UE of UE1, decoding obtains four uplink authorizations Message #1, #2A, #3, #4A determine four uplink authorizations according to the information bit for directly indicating target UE in the uplink authorization message Message is orderly used to scheduling UE1, UE2, UE1, UE3;According to timing is received, determine that four uplink authorization message are orderly used to instruction UE1 forwards the scheduling information of the upstream data of UE2, the scheduling information of the upstream data of UE2, and UE1 forwards the upstream data of UE3 Scheduling information, the scheduling information of the upstream data of UE3.
Extraly, the scheduling message that uplink is obtained for UE1, using the mixing of three kinds of methods, for example, UE1 is monitored The specific search space the UE of UE1 simultaneously uses the corresponding RNTI blind examination of UE1, UE2 and UE3, and the UE of UE1 monitoring UE2 is specific Search space and the RNTI blind examination for using UE2.UE1 is in the specific search space UE of UE2 with the RNTI blind examination success of UE2, solution Code obtain directly indicating in uplink authorization message the information bit of target UE be mapping relations configuration index and value be 0, UE1 according to Map index value thinks that the uplink authorization message is used to indicate the scheduling information that UE1 forwards the upstream data of long-range UE to base station, Think that the long-range UE being forwarded is UE2 according to search space;UE1 is blind with the RNTI of UE2 in the specific search space UE of UE1 It examines successfully, decoding obtains uplink authorization message, and UE1 thinks that the uplink authorization message is used to indicate UE1 to base according to search space It stands and forwards the scheduling information of the upstream data of long-range UE, think that the long-range UE being forwarded is UE2 according to RNTI.
By above method, UE1 is the relay forwarding that UE2 carries out upstream data, is monitored by search space and RNTI is blind Inspection obtains two uplink authorization message (such as uplink authorization message #2A and #1 or #2 and #1 in Fig. 7) that base station is sent, point It Zhi Shi not the uplink scheduling information of UE2 and the uplink scheduling information of UE1 forwarding UE2 data;
Or, UE1 obtains the uplink authorization message (such as uplink authorization message #2 in Fig. 8) that base station is sent, instruction The uplink scheduling information of UE2, UE1 are derived according to the uplink scheduling information of UE2 and are calculated according to preset mapping relations UE1 forwards the uplink scheduling information of UE2 data out, for example, the resource location time domain section start of UE1 forwarding is in UE2 uplink The 4th subframe acts the first available subframe calculated after the end of transmission, and frequency domain position uses the preconfigured carrier wave in base station, and Using the preconfigured number of repetition in base station;Or, similarly, UE1 obtains the uplink authorization message that base station is sent, instruction UE1 forwards the uplink scheduling information of UE2 data, and UE1 is derived and calculated according to preset mapping relations and forwarding scheduling information The uplink scheduling information of UE2 out;
Or, UE1 obtains the uplink authorization message that base station is sent, indicates the uplink scheduling information of UE2, also indicate UE1 forwards the uplink scheduling information of UE2 data, and the uplink that preceding N1 bit is used to indicate UE2 in uplink authorization message passes Defeated scheduling information, the index of RNTI or UE1 and the UE2 mapping relations of UE ID or UE2 including indicating UE2, rear N2 bit are used In the uplink scheduling information of instruction UE1 forwarding UE2 data;
Or, UE1 obtains two uplink authorization message that base station is sent, wherein one or two is believed comprising incomplete scheduling Breath calculates base station and does not provide the scheduling information of part, example according to acquired scheduling information and the derivation of preset configuration parameter Such as, UE1 obtains the uplink authorization message #2 for the scheduling UE2 uplink that base station is sent, the resource-niche including UE2 uplink It sets, obtains the uplink authorization message #1 that the scheduling UE1 that base station is sent is UE2 relay forwarding, the resource-niche including UE1 uplink It sets and number of repetition;UE1 determines the number of repetition of UE2 uplink according to preset repeated link configuration parameter.
For UE2 and UE3 as long-range UE, the specific search of UE of itself is monitored in behavior namely UE2/UE3 when keeping non-relay Space and the RNTI blind examination for using itself, blind examination, which is successfully decoded, obtains uplink authorization message, by the Scheduling content of the message upper The shared channel of row carries out data transmission.
UE2 and UE3 obtains the scheduling information that the upstream data of itself is sent, and carries out upstream data according to scheduling information content Transmission.
UE1 obtains the uplink scheduling information of UE2 and UE3, according to the uplink of uplink scheduling information content reception UE2/UE3 It transmits and is successfully decoded.Wherein, the uplink transmission resource position of UE2 and UE3 is in sub-frame of uplink or uplink band, and UE1 is in uplink Subframe or uplink band carry out downlink reception.
UE1 obtains the scheduling information of the forwarded upstream of UE1, including the scheduling information forwarded for UE2 and is the tune that UE3 is forwarded Information is spent, the upstream data of received UE2 and UE3 is successfully decoded according to scheduling information content, forwarding in UE1.
In this scene, for downlink data transmission, UE2 and UE3 are as long-range UE, behavior when keeping non-relay, That is UE2 and/or UE3 monitors the specific search space UE of itself and the RNTI blind examination using itself, blind examination are successfully decoded under acquisition Row authorization messages are transmitted by the Scheduling content of the message in the data that DSCH Downlink Shared Channel receives base station.
UE1 is successfully decoded after the downstream grants message for obtaining UE2 and/or UE3 as relaying UE, blind examination without other behaviour Make.
Behavior when base station keeps non-relay, namely the downlink data reception of UE2 and/or UE3 is scheduled, it is not right UE1 additionally sends information relevant to the descending scheduling.
Embodiment two
This embodiment describes relay node carry out upstream data relay forwarding and downlink data relay forwarding, not into In the scene of row downlink control message relay forwarding, remote node, the operation behavior of the execution of relay node and base station.
(1) for uplink data channels and/or Uplink Shared Channel:
The concrete operations behavior of the execution of remote node and relay node is identical with embodiment one, and details are not described herein.
(2) for downlink data/DSCH Downlink Shared Channel:
The operation behavior of remote node includes:
Similar with uplink relay, behavior when remote node presses non-relay obtains the scheduling information of downlink reception from base station, According to the content of down dispatch information, the downstream data message that base station is sent is received.
The operation behavior of relay node includes:
1. relay node from base station obtain relay node configuration information and remote node configuration information, particular content with It is identical in embodiment one.Details are not described herein.
2. relay node obtains the scheduling information of the downlink reception of remote node from base station, in specific method and embodiment one It is identical, but decoding obtains the downstream grants message of the remote node of base station transmission.
3. relay node obtains the scheduling information of the downlink relay forwarding behavior of relay node, specific method and embodiment one In it is identical, but decoding obtain base station transmission relay node downstream grants message.
Wherein, similarly, information field is carried in downstream grants message for being explicitly indicated by the downstream grants message tune The node of degree, can be identity (such as UE ID) or the RNTI of remote node of remote node, or instruction relay node and The index of mapping relations between remote node, for determining the scheduler object of downstream grants message.
4. relay node receives the downstream data message that base station is sent to relay node, comprising:
Relay node is according to the content of the downstream data channel scheduling information of the relay node of acquisition, in the resource-niche of scheduling It sets the downstream data channel for receiving base station transmission and is successfully decoded.
5. the downstream data message that relay node is sent to remote node repeating base station, comprising:
Relay node receives the content of the scheduling information of downstream data channel according to the remote node of acquisition, in the load of scheduling The downstream data channel sent on wave to remote node repeating base station.
Wherein, the resource location of scheduling can be descending carrier or downlink subframe, and relay node is needed to have in downlink The ability sent on carrier wave or downlink subframe.
The behavior of base station includes:
1. base station carries out channel configuration to remote node and relay node, particular content is identical with embodiment one.Herein It repeats no more.
2. base station is scheduled the downlink reception (namely the downlink data of relay node forwards) of remote node, specific side Method is identical with embodiment one, but base station send be remote node downstream grants message.
3. base station is scheduled the downlink reception of relay node, specific method is identical with embodiment one, but base station is sent out What is sent is the downstream grants message of relay node.
Wherein, similarly, information field is carried in downstream grants message for being explicitly indicated by the downstream grants message tune The node of degree, can be identity (such as UE ID) or the RNTI of remote node of remote node, or instruction relay node and The index of mapping relations between remote node, for determining the scheduler object of downstream grants message.
4. base station is scheduled the transmission between relay node and remote node, specific method is identical with embodiment one, But what base station was sent is the downstream grants message of relay node and/or remote node.
5. base station sends downstream data message to relay node, comprising:
It is saved on the resource location of scheduling to relaying according to the scheduling information content of the downlink reception to relay node base station Point sends downstream data channel.
It should be noted that the above each operation behavior step is not belonging to be sequentially arranged.Each operation behavior step Rapid real time sequence needs to be configured according to the Scheduling content and relay node of base station and the down control channel of remote node The information content determines.
In the scene that embodiment two is directed to, including relay node carries out upstream data forwarding and downlink data forwarding, The method of middle upstream data forwarding is identical with embodiment one, and the method for downlink data forwarding is similar with upstream data forwarding, but The scheduling information used is down dispatch information, is obtained by decoding the downstream grants message obtained in down control channel.
Be illustrated the concrete behavior of downlink data relay forwarding below with reference to concrete example.Under in this example Row data channel PDSCH is also possible to EPDSCH, MPDSCH, NPDSCH.
In the example, as shown in figure 9, UE1 is the relay node with relay capabilities in cell coverage area, UE2 It is the remote node in cell coverage area with UE3.UE2 and UE3 uses UE1 to carry out in downstream data channel PDSCH After forwarding, down control channel PDCCH directly is received from base station.
Similar embodiment one, UE1 is normally linked into cell, itself RNTI and every configuration information are obtained from base station, and By base station be configured to carry out UE2 and UE3 the received relay forwarding of downlink data, by RRC signaling from base station obtain UE2 and The configuration information of UE3, content are identical with embodiment one.
UE2 and UE3 have the ability for being linked into cell in cell coverage area, and UE2 and UE3 are normally linked into cell, Itself RNTI and every configuration information are obtained from base station.UE2 and UE3 is configured to connect by UE1 progress downlink data by base station The relay forwarding of receipts, which is transparent namely UE2 and UE3 is without knowing that it is complete via relay forwarding that its downlink data is received At by original design progress downlink data reception of unrepeatered system.
UE1, UE2 and UE3 are monitored and are made in the search space of configuration in the down control channel that base station configures With RNTI blind examination, the scheduling message of downlink reception is obtained.
Base station send downlink scheduling message and UE1, UE2 and UE3 obtain downlink reception scheduling message concrete mode with Behavior in embodiment one is identical, but the received scheduling message by obtaining UE1/2/3 DSCH Downlink Shared Channel carries In downstream grants message.
UE1 obtains the scheduling information that UE1 carries out downlink reception from base station, the downlink data including needing to be transmitted to UE2 The scheduling information of scheduling information and the downlink data for needing to be transmitted to UE3, UE1 receive base station and send according to scheduling information content The downlink data for needing to be transmitted to UE2/UE3 and be successfully decoded.
UE1 obtains the scheduling information that UE2 and UE3 carries out downlink reception, and UE1 sends base station according to scheduling information content The downlink data for needing to be transmitted to UE2/UE3 be transmitted to UE2/UE3 in corresponding resource location.Wherein, under UE2 and UE3 Row receives resource location in downlink subframe or band downlink, and UE1 is sent in downlink subframe or band downlink.UE2 and UE3 are obtained The received scheduling information of downlink data derived from body carries out the reception of downlink data according to scheduling information content.
Embodiment three
It describes in the embodiment three and is carried out in upstream data, downlink data and downlink control message in relay node After in the scene of forwarding, remote node, the corresponding operation behavior of relay node and base station.
From the angle of system, the difference of embodiment three and embodiment one and embodiment two is that relay node is additionally right The downlink control message that base station is sent to remote node carries out relay forwarding, and remote node is from relay node rather than base station obtains Take uplink scheduling information and down dispatch information, base station no longer directly sends downlink control message to remote node, but will under Row control message is sent to relay node.
From the angle of remote node, all relay forwardings operation in embodiment three is all transparent namely remote node Without knowing that the transmission (reception) of downlink data thereon and downlink control message is completed via relay forwarding, by unrepeatered system Original design carries out the transmission (reception) of uplink and downlink data and downlink control message.Therefore, the behavior and embodiment of remote node One and/or embodiment two in it is identical.Details are not described herein.
From the angle of relay node:
(1) for the data channel of uplink and downlink/shared channel:
Relay node in embodiment one and embodiment two obtains the upper line number of remote node and relay node from base station Method according to transmission and the received scheduling information of downlink data still can be used for embodiment three.Obtain remote node and relay node After scheduling information, relay node according to scheduling information content carry out downstream transmission (forwarding)/received method and embodiment one/ It is identical in two.Details are not described herein.
(2) for down control channel:
Relay node receives the downlink control message of remote node and decoding, and the downlink control message of successfully decoded is forwarded To remote node.
Wherein, the behavior of relay node includes:
1. relay node obtains the configuration information of relay node and remote node from base station, such as embodiment one and embodiment Described in two.Details are not described herein.
2. relay node receives the downlink control message of remote node, in multiplexing embodiment one and embodiment two, relaying Node from base station obtain remote node scheduling information method, but in embodiment three remote node of successfully decoded all classes Type control message is included in the control range of information of remote node, be not limited to remote node uplink authorization message and/ Or downstream grants message.For example, relay node receives and is successfully decoded the transmission power control that base station is sent to remote node (Transmitter Power Control, TPC) order, and the TPC command is transmitted to remote node in next step.
3. the downlink control message of the remote node of successful reception is transmitted to remote node by relay node, comprising:
Relay node receives the downlink control message and successfully decoded of remote node;Relay node is matched according to remote node Confidence breath, determines the position of the specific search space down control channel UE of an earliest remote node after successfully decoded;In After node in the specific search space down control channel UE, downlink control message is transmitted to remote node.
Angle from base station:
(1) for the data of uplink and downlink/shared channel:
Base station in embodiment one and embodiment two to remote node and/or relay node carry out upstream data receive and The method of downlink data transmission still can be used for embodiment three.
(2) for down control channel:
Base station in embodiment one and embodiment two sends the scheduling of relay node to inter base station communication to relay node The method of information and relay node to the scheduling information between remote node still can be used for embodiment three.This method can be similarly used for Base station is in the transmission of other downlink control messages of remote node, and further base station is by the downlink control message of remote node The step of being sent to relay node, in addition to sending to relay node, base station additionally will not carry out downlink control to remote node and disappear The transmission of breath.
Further, base station is determined according to the data channel and control channel configuration information of relay node and remote node After the downlink control message for the remote node that relay node decoding needs to forward, the downlink of an earliest remote node controls letter The position of the specific search space road UE, and correspondingly determined according to the position base station in control message for remote node and/or Relay node carries out the content of scheduling of resource, and correspondingly adjusts the transmission timing of behavior and/or determining for reception behavior features of base station When.
In the following, illustrating the relay forwarding side of downlink control message in conjunction with concrete example based on the scene that embodiment three is directed to Method.Uplink Shared Channel PDCCH in this example is also possible to EPDCCH, MPDCCH, NPDCCH.
In the example, as shown in Figure 10, UE1 is the relay node with relay capabilities in cell coverage area, UE2 It is the remote node in cell coverage area with UE3.UE2 and UE3 uses UE1 to carry out uplink data channels PUSCH, downlink The forwarding of control channel PDCCH and downstream data channel PDSCH.
Similar embodiment one and embodiment two, UE1 is normally linked into cell, itself RNTI and items are obtained from base station Configuration information, and be configured to carry out the relay forwarding of the down control channel of UE2 and UE3 by base station, by RRC signaling from base station The configuration information of UE2 and UE3 is obtained, content is identical with embodiment one and embodiment two.Details are not described herein.
UE2 and UE3 have the ability for being linked into cell in cell coverage area, and UE2 and UE3 are normally linked into cell, Itself RNTI and every configuration information are obtained from base station.UE2 and UE3 is configured to carry out downlink control letter by UE1 by base station The relay forwarding in road, the configuration be it is transparent, also both UE2 and UE3 without know its downlink control message receive via relaying turn It distributes into, carries out downlink control message reception by original design of unrepeatered system.
UE1 obtains the concrete mode of downlink control message and the above UE obtains downlink in embodiment one and embodiment two The behavior of received scheduling message is identical.As shown in Fig. 5 or 6, UE1 decodes to obtain the downlink control message #1 of UE1 under The downlink control message #4 of the downlink control message #2, UE3 of row control message #3, UE2.It should be noted that embodiment one with And the method in two equally supports UE1 is decoded in the specific search space UE of UE2 to obtain the downlink control message of UE2, the base The downlink control message sent of standing may be decoded to obtain by UE2 by the specific search space blind examination UE, it is also possible to due to link matter The reasons such as amount can not be directly decoded to obtain by UE2, not influence the process of UE1 relay forwarding downlink control message.
UE1 carries out relay forwarding to downlink control message #2 and downlink control message #4.UE1 is according to the control channel of UE2 The control channel for configuring message and/or UE3 configures message, determines that earliest UE2 down control channel UE after successfully decoded is specific The position of search space and/or the position of the specific search space UE3 down control channel UE, the position may be with the downlinks of UE1 The specific search space control channel UE is in same period, or in different cycles, as shown in Figure 11, Figure 12.UE1 is according to the control of UE2 The control channel of channel configuration messages and/or UE3 processed configures message, determines that the down control channel UE of UE2 and/or UE3 is specific In the position of search space, the position of downlink control message candidate and physical layer parameter;It correspondingly, will be under UE2 and/or UE3 Position candidate of the row control message in the specific search space UE2 and/or UE3UE carries out relay forwarding, as shown in figure 13.Base station When for UE1 and UE2/3 schedule data transmission/received resource location, according to the down control channel of UE1 and UE2 and/or UE3 Configuration information determines the specific search space position the UE of UE1 and UE2 and/or UE3, UE1 is calculated and decodes to obtain needs to forward Downlink control message after, the specific search space position UE of an earliest UE2 and/or UE3, and determined and provided according to this position The earliest initial position of source scheduling, for example, when UE1 is the authorization messages that UE2 and/or UE3 forwards upstream or downstream data, base Stand for the resource location that is scheduled of uplink/downlink data transmission be no earlier than UE1 complete a UE2 earliest after decoding and/or N subframe after the end position of the specific search space the UE of UE3, as shown in figure 14.
For UE2 and UE3 as long-range UE, the UE that behavior namely UE2 and/or UE3 when keeping non-relay monitor itself is specific Acquisition downlink control message is successfully decoded in search space and the RNTI blind examination for using itself, blind examination.
Example IV
In embodiment one, embodiment two and embodiment three, upstream data and/or lower line number of the relay node to forwarding According to downlink control message message content or information bit without change, to number of repetition, modulation and encoding scheme (MCS) Etc. configured transmissions carry out or without change, for example, when base station be remote node configuration configured transmission and be that relay node is matched When the forwarding configured transmission difference set, it is forwarded according to the configured transmission that base station configures.
Further, relay node is modified the message content or information bit of forwarding when being forwarded.
For example, when relay node is remote node converting downlink control message, according to the chain of relay node to remote node Road quality modifies number of repetition and modulation and encoding scheme that base station is sent in the downlink control message of remote node.
In another example relay node is in the scene for the downlink control message that remote node forwards data transmission, for long-range Node carry out the transmission of uplink and downlink data (reception) resource location, in the downlink control message of scheduling with data transmission resources The form of time domain offset (offset) between control message transfer resource indicates (can be number of sub frames), and base station is saved to relaying In the uplink authorization message and/or downstream grants message that the needs that point is sent forward, the offset of instruction is that the uplink authorization disappears Breath and/or the offset between downstream grants message and the data resource of remote node;Relay node is forwarded to remote node When, the time-domain position of resource and the number of the calculated remote node of relay node are sent according to the actual control message of relay node According to resource location, the value of the offset indicated in the control message of relay node forwarding is correspondingly adjusted.If Figure 15 is uplink One example of data forwarding, the uplink authorization for being used to indicate remote node data resource position that base station is sent to relay node In message #2A, the offset of instruction is t1;Relay node is into the uplink authorization message #2 that remote node forwards, to message word Section is modified, and the offset of instruction is t2.
In addition, being a kind of relay transfer method of transparent transmission described in embodiment one, embodiment two and embodiment three, far Cheng Jiedian does not know the transmission of its data and/or control channel and/or receives whether complete via relay node.Extraly, it is System can also be used the relay transfer method of non-transparent transmission namely remote node know its data and/or control channel transmission and/or Reception is completed via relay forwarding, and further, remote node does not know the identity of relay node, or knows that relay node is special Fixed UE.
The case where for non-transparent transmission, remote node obtain the configuration of remote node itself by RRC signaling from relay node Information;Further, remote node obtains the configuration information of relay node by RRC signaling from base station.Wherein, remote node The configuration information of configuration information and/or relay node includes: UE ID, RNTI, down control channel configuration information and data letter Road configuration information.
By the design, the remote node outside cell coverage area has the ability to obtain the configuration information of itself, to there is energy Power realizes the communication with base station by the forwarding of relay node, so that the scene domain for supporting the design includes MPS process model Remote node in enclosing and outside cell coverage area.
Further, remote node has passed through the configuration information that RRC signaling obtains relay node from base station, remote node Blind examination is carried out using the RNTI of relay node in the specific search space UE of itself, blind examination succeeds and decodes to obtain downlink control Message, the search space used according to the downlink control message and/or blind examination RNTI and/or the target UE information bit of carrying determine The instruction object of the downlink control message, and other operations are carried out according to the content in downlink control message, for example, long-range section Point obtains the uplink data scheduling information of itself and the forwarded upstream scheduling information of relay node, in the forwarding resource of relay node The form progress uplink of position and relay node to cooperate, to enhance transimission power.
The embodiment of the invention provides the first UE of one kind, as shown in figure 16, comprising: the first receiving module 1601, forwarding mould Block 1602, wherein
First receiving module 1601, for receiving the configuration information of base station transmission.
Wherein, configuration information is used to receive the information of the 2nd UE.
First receiving module 1601, is also used to receive the information of the 2nd UE according to the configuration information;
Forwarding module 1602, the information of the 2nd UE for forwarding the first receiving module 1601 to receive.
Wherein, configuration information includes at least one of the following:
The identity of 2nd UE, the radio network temporary identifier RNTI information of the 2nd UE, the downlink of the 2nd UE control letter The data of road configuration information, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Channel configuration information;
Wherein, down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
Data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downstream data channel Configuration information, data channel transmission mode, pilot frequency information, uplink can be weighed automatically with subframe, polyhybird with subframe, downlink It passes and controls area size in request HARQ process parameter and subframe.
Specifically, the first receiving module 1601 is specifically used for obtaining the down control channel of the 2nd UE according to configuration information The down control channel configuration information of configuration information and/or the first UE is configured according to the down control channel of the 2nd UE of acquisition The down control channel configuration information of information and/or the first UE, monitor the 2nd UE down control channel and/or the first UE under Row control channel, decoding obtain the first scheduling information, wherein the first scheduling information is used to indicate connecing for the data channel of the 2nd UE It receives.
First receiving module 1601 is specifically also used to receive the data information of the 2nd UE according to the first scheduling information.
Specifically, the first receiving module 1601 is specifically also used to according to the first scheduling information, in the upstream data of the 2nd UE The upstream data information of the 2nd UE is received on channel.
First receiving module 1601, is specifically also used to according to the first scheduling information, the 2nd UE downstream data channel or The downlink data information of the 2nd UE is received in the downstream data channel of first UE.
Wherein, the upstream data information of the 2nd UE is that the 2nd UE is sent according to from the directly received control information in base station, Alternatively, the upstream data information of the 2nd UE is that the 2nd UE is sent according to the control information that the first UE is forwarded.
Specifically, forwarding module 1602, the second scheduling information sent specifically for receiving base station.
Wherein, the second scheduling information forwards the data information of the 2nd UE for the first UE.
Forwarding module 1602 is specifically also used to forward the data information of the 2nd UE received according to the second scheduling information.
Wherein, the data information of the 2nd UE is that basis is received from base station directly received control information at the 2nd UE, Alternatively, the data information of the 2nd UE is received according to the control information of the first UE forwarding at the 2nd UE.
Specifically, the first receiving module 1601 is specifically also used to monitor the down control channel and/or the first UE of the 2nd UE Down control channel, decoding obtain the second scheduling information.
Specifically, forwarding module 1602 are specifically also used to before the data information of the 2nd UE received, add media Access control mac frame head or wireless spread-spectrum technology RLC frame head.
Forwarding module 1602 is specifically also used to forward the data information of the 2nd UE after addition frame head.
Specifically, the first receiving module 1601, the downlink for being specifically also used to obtain the 2nd UE according to configuration information control letter The down control channel configuration information of road configuration information and/or the first UE.
First receiving module 1601, be specifically also used to according to the down control channel configuration information of the 2nd UE of acquisition and/ Or the first UE down control channel configuration information, monitor the first UE down control channel and/or the 2nd UE downlink control Channel, decoding obtain the Downlink Control Information of the 2nd UE.
Forwarding module 1602 is specifically also used on the down control channel of the 2nd UE, forwards the 2nd UE's to the 2nd UE Downlink Control Information.
Further, device further include: judgment module 1603 (is not marked in figure).
Judgment module 1603 judges to be decoded according to configuration information for according at least one of following information Whether control information is used to dispatch the first UE and/or the 2nd UE: the scrambling of the information bit, control message that carry in control message RNTI and the search space for decoding control message.
Wherein, the content carried in information bit includes at least one of the following: the body of the identity of the first UE, the 2nd UE Part mark, the RNTI of the first UE, the 2nd UE RNTI, the first UE and the 2nd UE between mapping relations identification information.
The embodiment of the invention provides the first UE of one kind, and compared with prior art, the embodiment of the present invention receives base station and sends Configuration information, wherein configuration information, which is used to receive the information of the 2nd UE, receives the 2nd UE then according to the configuration information Information, the information of the 2nd UE received is then forwarded, thus can be between base station and remote node (the 2nd UE) Relay transmission is carried out after node (the first UE).
The embodiment of the invention provides a kind of base stations, as shown in figure 17, comprising: sending module 1701, the second receiving module 1702, wherein
Sending module 1701, for sending configuration information to the first UE.
Sending module 1701 is also used to send the information of the 2nd UE to the 2nd UE by the first UE according to configuration information.
Second receiving module 1702, for receiving the information of the 2nd UE of the first UE forwarding according to configuration information.
Wherein, configuration information at the first UE for forwarding the information of the 2nd UE.
Wherein, configuration information includes at least one of following:
The identity of 2nd UE, the radio network temporary identifier RNTI information of the 2nd UE, the downlink of the 2nd UE control letter The data of road configuration information, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Channel configuration information;
Wherein, down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
Data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downstream data channel Configuration information, data channel transmission mode, pilot frequency information, uplink can be weighed automatically with subframe, polyhybird with subframe, downlink It passes and controls area size in request HARQ process parameter and subframe.
Sending module 1701 is specifically used for sending the control of the 2nd UE to the 2nd UE by the first UE according to configuration information Information and data information.
Sending module 1701, is specifically also used to according to configuration information, sends control information to the 2nd UE, and pass through the first UE The data information of the 2nd UE is sent to the 2nd UE.
Second receiving module 1702, is specifically used for according to configuration information, sends the 2nd UE's to the 2nd UE by the first UE Information is controlled, and receives the data information of the 2nd UE of the first UE forwarding.
Second receiving module 1702 is specifically also used to base station and sends control information to the 2nd UE according to configuration information, and connects Receive the data information of the 2nd UE by the first UE forwarding.
Sending module 1701 is specifically also used to according to configuration information, in the down control channel and/or the first UE of the 2nd UE Down control channel on, send the second scheduling information and the first scheduling information to the first UE.
Wherein, the first scheduling information receives the data information of the 2nd UE for the first UE, and the second scheduling information is used for first UE forwards the data information of the 2nd UE.
Sending module 1701, is specifically also used to based on the second scheduling information and the first scheduling information, by the first UE to 2nd UE sends the data information of the 2nd UE.
Sending module 1701 is specifically also used to according to configuration information, in the down control channel and/or the first UE of the first UE Down control channel on, by the first UE to the 2nd UE send the 2nd UE control information.
Second receiving module 1702 is specifically also used to according to configuration information, in the down control channel of the 2nd UE and/or On the down control channel of one UE, the second scheduling information and the first scheduling information are sent to the first UE.
Wherein, the first scheduling information is used to indicate the reception of the data channel of the 2nd UE, and the second scheduling information is used for first UE forwards the data information of the 2nd UE.
Second receiving module 1702 is specifically also used to pass through based on the second scheduling information and the first scheduling information, reception The data information of 2nd UE of the first UE forwarding.
The embodiment of the invention provides a kind of base stations, and compared with prior art, base station of the embodiment of the present invention is to first UE sends configuration information, and then base station sends the information of the 2nd UE by the first UE according to configuration information to the 2nd UE;And/or Base station receives the information of the 2nd UE of the first UE forwarding according to configuration information, wherein configuration information is used to forward at the first UE The information of 2nd UE, so that between base station and remote node (the 2nd UE) relaying biography can be carried out by relay node (the first UE) It is defeated.
Yet another embodiment of the invention provides the first UE of one kind, comprising: processor;And memory, it is configured to store Machine readable instructions instruct when executed by the processor, so that the method that processor executes above-mentioned relay transmission.
Yet another embodiment of the invention provides a kind of base station, comprising: processor;And memory, it is configured to storage machine Device readable instruction instructs when executed by the processor, so that the method that processor executes above-mentioned relay transmission.
Figure 18 diagrammatically illustrates the base station that can be used for realizing the disclosure or the user of embodiment according to embodiments of the present invention The block diagram of the computing system of equipment.
As shown in figure 18, computing system 1800 includes processor 1810, computer readable storage medium 1820, output interface 1830 and input interface 1840.The computing system 1800 can execute the method above with reference to Fig. 1 or Fig. 2 description, with configuration Reference signal is simultaneously carried out data transmission based on the reference signal.
Specifically, processor 1810 for example may include general purpose microprocessor, instruction set processor and/or related chip group And/or special microprocessor (for example, specific integrated circuit (ASIC)), etc..Processor 1810 can also include for caching The onboard storage device of purposes.Processor 1810 can be for executing the different movements for referring to the method flow that Fig. 1 or Fig. 2 is described Single treatment unit either multiple processing units.
Computer readable storage medium 1820, for example, can be can include, store, transmitting, propagating or transmitting instruction Arbitrary medium.For example, readable storage medium storing program for executing can include but is not limited to electricity, magnetic, optical, electromagnetic, infrared or semiconductor system, dress It sets, device or propagation medium.The specific example of readable storage medium storing program for executing includes: magnetic memory apparatus, such as tape or hard disk (HDD);Light Storage device, such as CD (CD-ROM);Memory, such as random access memory (RAM) or flash memory;And/or wire/wireless communication Link.
Computer readable storage medium 1820 may include computer program, which may include code/meter Calculation machine executable instruction executes processor 1810 for example above in conjunction with Fig. 1 or Fig. 2 institute The method flow of description and its any deformation.
Computer program can be configured to have the computer program code for example including computer program module.For example, In the exemplary embodiment, the code in computer program may include one or more program modules, for example including module 1, mould Block 2 ....It should be noted that the division mode and number of module are not fixation, those skilled in the art can be according to reality Situation is combined using suitable program module or program module, when the combination of these program modules is executed by processor 1810, is made Obtaining processor 1810 can execute for example above in conjunction with method flow described in Fig. 1 or Fig. 2 and its any deformation.
In accordance with an embodiment of the present disclosure, output interface 1830 and input interface 1840 can be used to execute in processor 1810 Above in conjunction with method flow described in Fig. 1 or Fig. 2 and its any deformation.
The embodiment of the invention provides the first UE of one kind, and compared with prior art, the embodiment of the present invention receives base station and sends Configuration information, wherein configuration information, which is used to receive the information of the 2nd UE, receives the 2nd UE then according to the configuration information Information, the information of the 2nd UE received is then forwarded, thus can be between base station and remote node (the 2nd UE) Relay transmission is carried out after node (the first UE).
The embodiment of the invention provides a kind of base stations, and compared with prior art, base station of the embodiment of the present invention is to first UE sends configuration information, and then base station sends the information of the 2nd UE by the first UE according to configuration information to the 2nd UE;And/or Base station receives the information of the 2nd UE of the first UE forwarding according to configuration information, wherein configuration information is used to forward at the first UE The information of 2nd UE, so that between base station and remote node (the 2nd UE) relaying biography can be carried out by relay node (the first UE) It is defeated.
Those skilled in the art of the present technique are appreciated that the present invention includes being related to for executing in operation described herein One or more equipment.These equipment can specially design and manufacture for required purpose, or also may include general Known device in computer.These equipment have the computer program being stored in it, these computer programs are selectively Activation or reconstruct.Such computer program can be stored in equipment (for example, computer) readable medium or be stored in It e-command and is coupled in any kind of medium of bus respectively suitable for storage, the computer-readable medium includes but not Be limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only Read memory), RAM (Random Access Memory, immediately memory), EPROM (Erasable Programmable Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card Piece.It is, readable medium includes by equipment (for example, computer) with any Jie for the form storage or transmission information that can be read Matter.
Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram and/or flow graph disclosed by the invention.
Those skilled in the art of the present technique have been appreciated that in the present invention the various operations crossed by discussion, method, in process Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with having been crossed by discussion in the present invention Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted. Further, in the prior art to have and the step in various operations, method disclosed in the present invention, process, measure, scheme It may also be alternated, changed, rearranged, decomposed, combined or deleted.
The above is only some embodiments of the invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (23)

1. a kind of method of relay transmission, which is characterized in that executed by the first user equipment (UE), comprising:
Receive the configuration information that base station is sent, wherein the configuration information is used to receive the information of the 2nd UE;
According to the configuration information, the information of the 2nd UE is received;
The information of the 2nd UE received described in forwarding.
2. the method according to claim 1, wherein wherein, the configuration information includes at least one of the following:
The identity of 2nd UE, the radio network temporary identifier RNTI information of the 2nd UE, the 2nd UE down control channel match The data channel of confidence breath, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Configuration information;
Wherein, the down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
The data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downstream data channel Configuration information, data channel transmission mode, pilot frequency information, uplink can be weighed automatically with subframe, polyhybird with subframe, downlink It passes and controls area size in request HARQ process parameter and subframe.
It is described according to the configuration information 3. the method according to claim 1, wherein wherein, receive described the The information of two UE, comprising:
Letter is controlled according to the downlink of the configuration information, the down control channel configuration information and/or the first UE that obtain the 2nd UE Road configuration information is matched according to the down control channel configuration information of the 2nd UE of acquisition and/or the down control channel of the first UE Confidence breath, monitors the down control channel of the 2nd UE and/or the down control channel of the first UE, and decoding obtains the first scheduling Information, wherein first scheduling information is used to indicate the reception of the data channel of the 2nd UE;
According to first scheduling information, the data information of the 2nd UE is received.
4. according to the method described in claim 3, it is characterized in that, receiving the number of the 2nd UE according to first scheduling information It is believed that breath, includes at least one of the following:
According to first scheduling information, the upstream data letter of the 2nd UE is received on the uplink data channels of the 2nd UE Breath;
According to first scheduling information, institute is received in the downstream data channel of the 2nd UE or the downstream data channel of the first UE State the downlink data information of the 2nd UE.
5. according to the method described in claim 4, it is characterized in that,
The upstream data information of 2nd UE is the 2nd UE according to from the directly received control information transmission in base station, or Person, the upstream data information of the 2nd UE are that the 2nd UE is sent according to the control information that the first UE is forwarded.
6. method according to claim 1-5, which is characterized in that the letter of the 2nd UE received described in forwarding Breath, comprising:
Receive the second scheduling information that base station is sent, wherein second scheduling information forwards the number of the 2nd UE for the first UE It is believed that breath;
According to second scheduling information, the data information of the 2nd UE received described in forwarding.
7. according to the method described in claim 6, it is characterized in that,
The data information of 2nd UE be at the 2nd UE according to from base station directly received control information it is received, or Person, the data information of the 2nd UE are received according to the control information of the first UE forwarding at the 2nd UE.
8. method according to claim 6 or 7, which is characterized in that receive the second scheduling information that base station is sent, comprising:
The down control channel of the 2nd UE and/or the down control channel of the first UE are monitored, decoding obtains the second scheduling information.
9. method according to claim 1-8, which is characterized in that the letter of the 2nd UE received described in forwarding Breath, comprising:
Before the data information of the 2nd UE received, media access control mac frame head or Radio Link control are added RLC frame head processed;
The data information of the 2nd UE after forwarding addition frame head.
10. the method according to claim 1, wherein receiving the letter of the 2nd UE according to the configuration information Breath, comprising:
Letter is controlled according to the downlink of the configuration information, the down control channel configuration information and/or the first UE that obtain the 2nd UE Road configuration information;
According to the down control channel configuration information of the 2nd UE of acquisition and/or the down control channel configuration information of the first UE, The down control channel of the first UE and/or the down control channel of the 2nd UE are monitored, decoding obtains the downlink control letter of the 2nd UE Breath;
The information of the 2nd UE received described in forwarding, comprising:
On the down control channel of the 2nd UE, the 2nd UE of Xiang Suoshu forwards the Downlink Control Information of the 2nd UE.
11. method according to any one of claim 1 to 10, which is characterized in that match confidence what reception base station was sent After breath, the method also includes:
According at least one of following information, judge whether the control information decoded according to the configuration information is used to adjust Spend the first UE and/or the 2nd UE: the scrambling RNTI of the information bit, the control message that carry in the control message, reconciliation The search space of the code control message.
12. according to the method for claim 11, which is characterized in that
The content carried in the information bit includes at least one of the following: the identity mark of the identity of the first UE, the 2nd UE Knowledge, the RNTI of the first UE, the 2nd UE RNTI, the first UE and the 2nd UE between mapping relations identification information.
13. a kind of method of relay transmission characterized by comprising
Base station sends configuration information to the first UE;
Base station sends the information of the 2nd UE by the first UE according to the configuration information to the 2nd UE;And/or
Base station receives the information of the 2nd UE of the first UE forwarding according to the configuration information;
Wherein, the configuration information at the first UE for forwarding the information of the 2nd UE.
14. according to the method for claim 13, which is characterized in that wherein, the configuration information includes at least one of following:
The identity of 2nd UE, the radio network temporary identifier RNTI information of the 2nd UE, the 2nd UE down control channel match The data channel of confidence breath, the down control channel configuration information of the first UE, the data channel configuration information of the first UE, the 2nd UE Configuration information;
Wherein, the down control channel configuration information includes at least one of the following: relay physical downlink control channel search space type, most Big number of repetition Rmax, starting subframe, offset, subframe, Downlink Control Information DCI format and down control channel money can be used Source configuration information;
The data channel configuration information includes at least one of the following: the configuration information of uplink data channels, downstream data channel Configuration information, data channel transmission mode, pilot frequency information, uplink can be weighed automatically with subframe, polyhybird with subframe, downlink It passes and controls area size in request HARQ process parameter and subframe.
15. according to the method for claim 13, which is characterized in that wherein, base station is according to the configuration information, by described First UE sends the information of the 2nd UE to the 2nd UE, including any one of following:
The base station according to the configuration information, by the first UE to the 2nd UE send the 2nd UE control information and Data information;
According to the configuration information, the 2nd UE of Xiang Suoshu sends control information for the base station, and passes through the first UE to described second UE sends the data information of the 2nd UE.
16. according to the method for claim 13, which is characterized in that wherein, base station is according to the configuration information, described in reception The information of 2nd UE of the first UE forwarding, including any one of following:
The base station sends the control information of the 2nd UE by the first UE according to the configuration information to the 2nd UE, And receive the data information of the 2nd UE of the first UE forwarding;
According to the configuration information, the 2nd UE of Xiang Suoshu sends control information for the base station, and receives through the first UE forwarding The data information of 2nd UE.
17. according to the method for claim 15, which is characterized in that base station is by the first UE to described in the 2nd UE transmission The data information of 2nd UE, comprising:
Base station is according to the configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, to First UE sends the second scheduling information and the first scheduling information, wherein first scheduling information is used to indicate the 2nd UE's The reception of data channel, second scheduling information forward the data information of the 2nd UE for the first UE;
Based on second scheduling information and the first scheduling information, the 2nd UE is sent to the 2nd UE by the first UE Data information.
18. according to the method for claim 15, which is characterized in that base station is by the first UE to described in the 2nd UE transmission The control information of 2nd UE, comprising:
Base station is according to the configuration information, on the down control channel of the first UE and/or the down control channel of the first UE, leads to Cross the control information that the first UE sends the 2nd UE to the 2nd UE.
19. according to the method for claim 16, which is characterized in that base station receives the 2nd UE by the first UE forwarding Data information, comprising:
Base station is according to the configuration information, on the down control channel of the 2nd UE and/or the down control channel of the first UE, to First UE sends the second scheduling information and the first scheduling information, wherein first scheduling information is used to indicate the 2nd UE's The reception of data channel, second scheduling information forward the data information of the 2nd UE for the first UE;
Based on second scheduling information and the first scheduling information, the data of the 2nd UE by the first UE forwarding are received Information.
20. the first UE of one kind characterized by comprising
First receiving module, for receiving the configuration information of base station transmission, wherein the configuration information is for receiving the 2nd UE's Information;
First receiving module is also used to receive the information of the 2nd UE according to the configuration information;
Forwarding module, the information of the 2nd UE for forwarding first receiving module to receive.
21. a kind of base station characterized by comprising
Sending module, for sending configuration information to the first UE;
The sending module is also used to send the letter of the 2nd UE to the 2nd UE by the first UE according to the configuration information Breath;
Second receiving module, for receiving the information of the 2nd UE of the first UE forwarding according to the configuration information;
Wherein, the configuration information at the first UE for forwarding the information of the 2nd UE.
22. a kind of terminal device, comprising: processor;And
Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that the processing The method that device perform claim requires relay transmission described in any one of 1-12.
23. a kind of base station, comprising:
Processor;And
Memory is configured to storage machine readable instructions, and described instruction by the processor when being executed, so that the processing The method that device perform claim requires relay transmission described in any one of 13-19.
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KR1020227012368A KR102491548B1 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
US16/626,989 US11350364B2 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
PCT/KR2018/008716 WO2019027242A1 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
KR1020207002953A KR20200026921A (en) 2017-07-31 2018-07-31 Instruction information detection method and apparatus, and transmission relay method and apparatus
EP18841621.8A EP3610689B1 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting paging indication information
EP21150611.8A EP3823220A1 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting indication information
KR1020217000667A KR102388350B1 (en) 2017-07-31 2018-07-31 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
US17/149,562 US11218967B2 (en) 2017-07-31 2021-01-14 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
US17/567,773 US11737024B2 (en) 2017-07-31 2022-01-03 Method and apparatus for detecting indication information, and methods and devices for relaying transmission
US18/453,141 US20230397112A1 (en) 2017-07-31 2023-08-21 Method and apparatus for detecting indication information, and methods and devices for relaying transmission

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021022462A1 (en) * 2019-08-05 2021-02-11 华为技术有限公司 Signal processing method, device and system
CN113630821A (en) * 2020-05-09 2021-11-09 华为技术有限公司 Communication method and device
CN113972969A (en) * 2020-07-22 2022-01-25 维沃移动通信有限公司 Transmission method and device for control signaling

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101047421A (en) * 2006-04-28 2007-10-03 华为技术有限公司 Device and method for mobile communication using repeater station
US20100120442A1 (en) * 2008-11-12 2010-05-13 Motorola, Inc. Resource sharing in relay operations within wireless communication systems
KR20100091871A (en) * 2009-02-11 2010-08-19 엘지전자 주식회사 Method for relaying data in wireless communication system
US20150016368A1 (en) * 2011-06-28 2015-01-15 Zte Corporation Data Transmission Control Method and System for User Equipment
US20150049694A1 (en) * 2012-03-06 2015-02-19 Lg Electronics Inc. Method and apparatus for transmitting/receiving control information for device to device (d2d) communication in a wireless communications system
CN105474558A (en) * 2013-08-18 2016-04-06 Lg电子株式会社 Repeater operation method and apparatus in wireless communication system
CN105657865A (en) * 2015-04-30 2016-06-08 宇龙计算机通信科技(深圳)有限公司 Data relay transmission method, data relay transmission system and UE having relay function
CN106304351A (en) * 2015-05-27 2017-01-04 中兴通讯股份有限公司 A kind of method and apparatus of resource distribution
US20170126306A1 (en) * 2014-07-07 2017-05-04 Lg Electronics Inc. Method and device for transmitting and receiving d2d signal by relay terminal in wireless access system supporting device-to-device communication
CN107211339A (en) * 2015-08-12 2017-09-26 华为技术有限公司 A kind of data transmission method, user equipment and base station

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101047421A (en) * 2006-04-28 2007-10-03 华为技术有限公司 Device and method for mobile communication using repeater station
US20100120442A1 (en) * 2008-11-12 2010-05-13 Motorola, Inc. Resource sharing in relay operations within wireless communication systems
KR20100091871A (en) * 2009-02-11 2010-08-19 엘지전자 주식회사 Method for relaying data in wireless communication system
US20150016368A1 (en) * 2011-06-28 2015-01-15 Zte Corporation Data Transmission Control Method and System for User Equipment
US20150049694A1 (en) * 2012-03-06 2015-02-19 Lg Electronics Inc. Method and apparatus for transmitting/receiving control information for device to device (d2d) communication in a wireless communications system
CN105474558A (en) * 2013-08-18 2016-04-06 Lg电子株式会社 Repeater operation method and apparatus in wireless communication system
US20170126306A1 (en) * 2014-07-07 2017-05-04 Lg Electronics Inc. Method and device for transmitting and receiving d2d signal by relay terminal in wireless access system supporting device-to-device communication
CN105657865A (en) * 2015-04-30 2016-06-08 宇龙计算机通信科技(深圳)有限公司 Data relay transmission method, data relay transmission system and UE having relay function
CN106304351A (en) * 2015-05-27 2017-01-04 中兴通讯股份有限公司 A kind of method and apparatus of resource distribution
CN107211339A (en) * 2015-08-12 2017-09-26 华为技术有限公司 A kind of data transmission method, user equipment and base station

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "R1-1707584 "Discussion on sidelink resource allocation and pool configuration for IoT and wearables"", 3GPP TSG_RAN\\WG1_RL1, no. 1 *
秦琳;王亚峰;杨大成;: "中继技术在LTE-Advanced中的最新进展", 现代电信科技, no. 07 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021022462A1 (en) * 2019-08-05 2021-02-11 华为技术有限公司 Signal processing method, device and system
CN113630821A (en) * 2020-05-09 2021-11-09 华为技术有限公司 Communication method and device
CN113630821B (en) * 2020-05-09 2023-03-10 华为技术有限公司 Communication method and device
CN113972969A (en) * 2020-07-22 2022-01-25 维沃移动通信有限公司 Transmission method and device for control signaling
CN113972969B (en) * 2020-07-22 2023-05-05 维沃移动通信有限公司 Transmission method and equipment for control signaling

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