CN106506129B - Relay the ascending transmission method of return link - Google Patents
Relay the ascending transmission method of return link Download PDFInfo
- Publication number
- CN106506129B CN106506129B CN201510564379.3A CN201510564379A CN106506129B CN 106506129 B CN106506129 B CN 106506129B CN 201510564379 A CN201510564379 A CN 201510564379A CN 106506129 B CN106506129 B CN 106506129B
- Authority
- CN
- China
- Prior art keywords
- uplink
- radio frames
- downlink configuration
- carried
- phich
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of ascending transmission method for relaying return link, this method comprises: relay node receives the Downlink Control Information in the physical downlink control channel PDCCH for being carried on return link that base station is sent in wireless sub-frame n, and k-th of wireless sub-frame n+k sends the passback uplink service corresponding to the Downlink Control Information being carried on PUSCH to base station after wireless sub-frame n.The above method can neatly dynamic configuration return link uplink, avoid the uplink with access link from interfering with each other, can preferably be compatible with existing system.
Description
Technical field
The present invention relates to wireless communication techniques, and in particular to relays the ascending transmission method of return link.
Background technique
In LTE (Long Term Evolution, long evolving system) system, and LTE-A (LTE-Advanced, it is advanced
Long evolving system) be LTE evolution version.One characteristic of lte-a system is to introduce relaying section station in systems
(Relay Node, RN).The introducing of relay station improves covering quality, the coverage area of signal to a certain extent, improves system
System capacity.The purpose that relaying introduces is exactly to provide flexible network deployment in order to improve system covering, power system capacity and reduce net
Network construction cost.Main application scenarios include: hot spot covering, mend blind, in-door covering, rural area covering, emergency communication, wireless time
It passes and organizes and is mobile etc..
Node relay node RN special as one is both terminal and base station.Relaying itself is used as macro base station first
A terminal of eNB is communicated using return link, and other terminals M-UE under macro base station is scheduled together, and is relayed
Oneself cell can be set up as a micro-base station again simultaneously, the R-UE in oneself coverage area is scheduled, access is used
Link.Here M-UE and R-UE is identical common terminal, and the base station only accessed is different.Usually define user
Link between equipment (User Equipment, UE) and relay node is access link Access link, and relay node with
Link between network side is return link backhaul link.And it is mutual dry exactly between access link and return link
It disturbs and brings many problems to Standardization Research, in order to solve this problem, there are three types of the trunk types supported in LTE-A,
Outband relaying, inband and the relaying for needing resource to divide, inband do not need resource division.Outband relaying is exactly to connect
Incoming link and return link frequency division avoid interfering, and inband does not need resource division is exactly access link and return link use
Similar frequency bands, but avoid interfering with each other by antenna isolation, belong to the means in engineering.Discussed in agreement at present and
What is formulated is inband and the relaying for needing resource division, that is, similar frequency bands are used between access link and return link,
And time-multiplexed mode.The inband for needing resource to divide is relayed, in order to avoid Access link and Backhaul
Link's interferes with each other, and the transmission of eNB-RN and RN-UE are using time division multiplexing (Time Division Multiplexing, letter
Claim TDM) mode, that is to say, that RN uses semiduplex operating mode, in down direction, RN or can only at a time connect
It receives the data from eNB or data can only be sent to R-UE；In up direction, RN otherwise can only be sent out data to eNB or
The data from R-UE can only be received.In addition realize that backhaul link also needs to guarantee original hybrid automatic repeat-request
(Hybrid Automatic Repeat reQuest, abbreviation HARQ) mechanism is unaffected.So in order to solve this problem,
Last third generation partner program (3rd Generation Partnership Project, abbreviation 3GPP) is determined using more
Broadcast multicast/multicast single-frequency network network (Multimedia Broadcast multicast service Single where business
Frequency Network, abbreviation MBSFN) subframe is the downlink physical DSCH Downlink Shared Channel (Physical of backhaul
Downlink Shared Channe, abbreviation PDSCH)/Physical Downlink Control Channel (Physical Downlink Control
Channel, abbreviation PDCCH) transmission, and only use the orthogonal frequency division multiplexing (Orthogonal of the PDSCH in MBSFN
Frequency Division Multiplexing, abbreviation OFDM) symbolic component, it is therein because even being MBSFN sub-frame
The part PDCCH eNB also needs to issue uplink scheduling authorization Downlink Control Information (Downlink Control to all M-UE as usual
Information, abbreviation DCI), and place PHICH feedback channel.And MBSFN sub-frame used in multicast service is reserved
Will not be used out to PDSCH unicast service, thus using MBSFN sub-frame PDSCH symbolic component can to avoid with it is existing
Unicast service in network, that is, the descending scheduling business between RN-UE, generation interfere with each other, as shown in Figure 1.
Due to the resource of Backhaul link and the Access link at the end RN be multiplexed in a manner of TDM, that is,
It says, the resource a part at the end RN is used as Backhaul link, and a part is used as Access link.So for TDD system
For system, it is clear that certain time division duplexs (Time Division Duplexing, abbreviation TDD) sub-frame resources can be made nervous.For
For TDD system, in the frame structure configuration of TDD, 0,1,2,5,6 subframe of subframe in 10ms radio frames is not can be configured as
MBSFN sub-frame.Therefore the subframe that backhaul transmission can be used as only has subframe 3,4,7,8,9 can be by
It is transmitted as backhaul, and limits a 10ms radio frames when actual disposition and at most configure 4 MBSFN sub-frames.
The downlink PDSCH/PDCCH transmission that return link is done using MBSFN sub-frame transmission can bring following defect:
1, in order to avoid the influence to existing HARQ timing and process, existing downlink backhaul selection is in MBSFN sub-frame
Upper progress, belongs to and is semi-statically configured, very limited on the time point of data transmission, the time delay of data forwarding is affected, so right
It is bad in the stronger business effect of real-time.
It 2, also can only a radio frames under the maximum configured of existing protocol simultaneously because the frame number for backhaul is limited
Most 3 MBSFN sub-frames are used for backhaul downlink, and most 2 sub-frame of uplink are used for backhaul uplink, resource-constrained,
The transmission rate of backhaul is caused necessarily to be limited
3, PHICH channel is eliminated, this leads to uplink in Backhaul link design in order to save channel resource
Backhaul can not carry out the non-adaptive HARQ of uplink synchronous and retransmit, and can only carry out having the adaptive H RAQ of uplink authorization to retransmit,
This also increases the resource pressure of PDCCH channel.
4, the resource distribution mode of the R-PDCCH of existing backhaul does not use the CCE method of salary distribution of original PDCCH, this
Resource distribution mode when redefining and design R-PDCCH transmission authorization is not only resulted in, is also resulted in related with downlink transfer
PUCCH feedback resource resource mapping method needs redefine.Which increase complexities.
And in following 5G system, need to improve the transmission speed of user by the way of super-intensive networking on a large scale
Rate, improves the space reuse degree of frequency resource, and reduces the expense and time delay of the switching of user's cell, then a macro station or one
It is likely to occur a large amount of Pico Cell/small cell/Relay/ Home eNodeB under virtual subdistrict, is covered with Dan Zhan little and more
The mode at the intensive cloth station of point to carry out seamless coverage to a biggish region, one of them micro- station or the covering radius stood slightly
Only tens meters or even tens of rice.So intensive networking, necessarily involves the problem of how return link is connected to core net.Such as
Fruit all uses this ideal backhaul mode of optical fiber, then networking cost is unbearable.In addition some interim hot spots are covered
Lid or blind area temporarily cover, interim to assume that optical fiber cost is too high, and quick cloth station is also not achieved, quickly adjusts site location
Demand.Finally, more flexible network construction form may be taken in 5G, for example endless is stayed in the case where finding some small cell
It stays, then the Temporarily Closed website, then then there is the wasting of resources for the special optic fibre link that the cell is set up.So new transmission
Demand, new networking mode require more flexible, the higher wireless backhaul of rate.And obviously in existing 4G technology
Backhaul design under Relay scene is difficult meet demand.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of ascending transmission method of return link, with neatly dynamic
The uplink for configuring return link, avoids the uplink with access link from interfering with each other.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
The present invention provides a kind of ascending transmission method for relaying return link, comprising: relay node is received in wireless sub-frame n
The Downlink Control Information being carried in the physical downlink control channel PDCCH of return link that base station is sent, and in wireless sub-frame n
K-th of wireless sub-frame n+k sends the downlink that corresponds to being carried on Physical Uplink Shared Channel PUSCH to base station and controls later
The passback uplink service of information, wherein
Uplink-downlink configuration 0, when n=0,1,5 or 6, k=8 are used for radio frames；
Uplink-downlink configuration 1 is used for radio frames, when n=1 or 6, k=7, n=4 or when 9, k=8；
Uplink-downlink configuration 2, when n=1 or 6, k=6 are used for radio frames；
Uplink-downlink configuration 3, when n=7,8 or 9, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=7 or 8, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=7 for radio frames, k=5；
Uplink-downlink configuration 6 is used for radio frames, when n=0,5,6 or 9, when k=8, n=1, k=11.
Optionally, the method also includes: uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless son
It is 1 that frame n was received, which is carried on the MSB of the UL index field in the uplink authorization on PDCCH, or is received in subframe 0 or 5
To be carried on physics hybrid automatic retransmission instruction channel PHICH on IPHICH=0, then relay node can be sent in subframe n+k
Corresponding passback uplink service, wherein IPHICHFor PHICH channel indexes.
Optionally, the method also includes: uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless son
It is 1 that frame 0 or 5 received, which is carried on the LSB of the UL index field in the uplink authorization on PDCCH, or in subframe 0 or 5
The I being carried on PHICH receivedPHICH=1, then relay node sends corresponding passback uplink service in subframe n+9, wherein
IPHICHFor PHICH channel indexes.
Optionally, the method also includes: uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless son
It is 1 that frame 1 or 6 received, which is carried on the LSB of the UL index field in the uplink authorization on PDCCH, or in subframe 1 or 6
The I being carried on PHICH receivedPHICH=1, then relay node sends uplink service in subframe n+9, wherein IPHICHFor
PHICH channel indexes.
Optionally, the method also includes: uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless son
The MSB and LSB for the UL index field that frame 0 or 5 received be carried in the uplink authorization on PDCCH are 1, then relay section
Point all sends corresponding passback uplink service in subframe n+k and n+9.
Optionally, the method also includes: uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless son
The MSB and LSB for the UL index field that frame 1 or 6 received be carried in the uplink authorization on PDCCH are 1, then relay section
Point all sends uplink service in subframe n+k and n+11.
Optionally, the method also includes:
Relay node sends the uplink service for being carried on Physical Uplink Shared Channel PUCCH in wireless sub-frame m to base station, then
The physics hybrid automatic retransmission being carried on PHICH, which is received, in wireless sub-frame m+j indicates information；
Uplink-downlink configuration 2, when n=2 or 7, k=4 are used for radio frames；
Uplink-downlink configuration 3, when n=2,3 or 4, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=2 or 3, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=2 for radio frames, k=5.
Optionally, the method also includes:
Uplink-downlink configuration 0 is used for radio frames, uses 5 hybrid automatic retransmission HARQ processes；
Uplink-downlink configuration 1 is used for radio frames, uses 8 HARQ processes；
Uplink-downlink configuration 2 is used for radio frames, uses 11 HARQ processes；
Uplink-downlink configuration 3 is used for radio frames, uses 10 HARQ processes；
Uplink-downlink configuration 4 is used for radio frames, uses 13 HARQ processes；
Uplink-downlink configuration 5 is used for radio frames, uses 16 HARQ processes；
Uplink-downlink configuration 6 is used for radio frames, uses 7 HARQ processes.
Optionally, the method also includes:
Relay node sends the passback uplink service being carried on PUSCH at the first moment to base station, connects at the second moment
The access uplink service being carried on PUSCH that the terminal R-UE of its covering is sent is received, first moment is different from described the
Two moment.
Optionally, the method also includes:
Relay node receives its terminal R- covered while sending the passback uplink service being carried on PUSCH to base station
The access uplink service being carried on PUSCH that UE is sent, leaving unused between passback uplink service and access uplink service has one
Quantitative resource block.
(3) beneficial effect
The present invention at least have it is following the utility model has the advantages that can neatly dynamic configuration return link uplink, keep away
Exempt from the uplink with access link to interfere with each other, can preferably be compatible with existing system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without creative efforts, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is to generate the schematic diagram interfered with each other in existing system；
Fig. 2 is the flow chart of an embodiment of the method provided by the invention；
Fig. 3 is the uplink scheduling sequential relationship schematic diagram of relaying passback and access link that the present invention enumerates.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
With scheduling time granularity, i.e. Transmission Time Interval (Transmission Time in the embodiment of the present invention
Interval, abbreviation TTI) it is time granularity to solve the resource flexible allocation between backhaul and access link, it transmits
Time point flexible configuration, and interference problem between the two then need to dynamically distribute backhaul and access link completely
Between resource, avoid static configuration backhaul subframe or resource.Processing mode is as follows:
The time interval increased between uplink scheduling authorization and uplink traffic transmission by artificial is (or by sub-frame of uplink
Transmit corresponding scheduling instance to shift to an earlier date, or the uplink moment corresponding to scheduling instance delayed), and according to circumstances adjust
The subsequent time interval transmitted upstream between feedback, or redundancy process is added, guarantee that normal HARQ is continuously transmitted, shape
The HARQ sequential relationship of Cheng Xin.The effect being finally reached is that backhaul link is relative to access link on mutually in the same time
The row scheduling corresponding uplink moment delay or the uplink of synchronization corresponding to backhaul scheduling when
Quarter more shifts to an earlier date.
After having These characteristics, then being equivalent to RN can know when that eNB or upper level RN node (work as RN in advance
Node can be linked into when continuing the wireless relay of multi-hop under another RN node) and oneself have business transmission, it is quasi- in advance
It is standby when to following UE scheduling, either use time-division TDM mode or frequency division FDM mode, make the tune of access link
The transmission on backhaul is avoided in degree transmission.
Fig. 2 shows the flow charts of the ascending transmission method of relaying return link provided by the invention, as shown in Fig. 2, this
The ascending transmission method of the relaying return link of embodiment may include following step:
201, relay node receives the downlink control on the PDCCH for being carried on return link that base station is sent in wireless sub-frame n
Information processed,
202, k-th of wireless sub-frame n+k sends to base station and is carried on Physical Uplink Shared Channel after wireless sub-frame n
The passback uplink service corresponding to the Downlink Control Information on PUSCH.
It should be noted that in the present embodiment, n, k take positive integer；
Uplink-downlink configuration 0, when n=0,1,5 or 6, k=8 are used for radio frames；
Uplink-downlink configuration 1 is used for radio frames, when n=1 or 6, k=7, n=4 or when 9, k=8；
Uplink-downlink configuration 2, when n=1 or 6, k=6 are used for radio frames；
Uplink-downlink configuration 3, when n=7,8 or 9, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=7 or 8, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=7 for radio frames, k=5；
Uplink-downlink configuration 6 is used for radio frames, when n=0,5,6 or 9, when k=8, n=1, k=11.
For example, uplink-downlink configuration 0 is used for radio frames, if relay node is held what wireless sub-frame n was received
The MSB for being loaded in the UL index field in the uplink authorization on PDCCH is 1, or is carried on object what subframe 0 or 5 received
The IPHICH=0 on hybrid automatic retransmission instruction channel PHICH is managed, then relay node can send corresponding passback in subframe n+k
Uplink service, wherein IPHICH is PHICH channel indexes.
It is realized in scene in another kind, uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless sub-frame 0
Or the LSB of the 5 UL index field in the uplink authorization being carried on PDCCH that receives is 1, or is received in subframe 0 or 5
To the I being carried on PHICHPHICH=1, then relay node sends corresponding passback uplink service in subframe n+9, wherein
IPHICHFor PHICH channel indexes.
In second of realization scene, uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless sub-frame 1
Or the LSB of the 6 UL index field in the uplink authorization being carried on PDCCH that receives is 1, or is received in subframe 1 or 6
To the I being carried on PHICHPHICH=1, then relay node sends uplink service in subframe n+9, wherein IPHICHFor PHICH letter
Road index.
It is realized in scene at the third, uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless sub-frame 0
Or the MSB and LSB of the 5 UL index field in the uplink authorization being carried on PDCCH that receives are 1, then relay node
Corresponding passback uplink service is all sent in subframe n+k and n+9.
In the 4th kind of realization scene, uplink-downlink configuration 0 is used for radio frames, if relay node is in wireless sub-frame 1
Or the MSB and LSB of the 6 UL index field in the uplink authorization being carried on PDCCH that receives are 1, then relay node
Uplink service is all sent in subframe n+k and n+11.
In addition, relay node sends the upper industry for being carried on Physical Uplink Shared Channel PUCCH in wireless sub-frame m to base station
Business then receives the physics hybrid automatic retransmission being carried on PHICH in wireless sub-frame m+j and indicates information；M, j takes positive integer；
Uplink-downlink configuration 2, when n=2 or 7, k=4 are used for radio frames；
Uplink-downlink configuration 3, when n=2,3 or 4, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=2 or 3, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=2 for radio frames, k=5.
Further, uplink-downlink configuration 0 is used for radio frames, uses 5 hybrid automatic retransmission HARQ processes；
Uplink-downlink configuration 1 is used for radio frames, uses 8 HARQ processes；
Uplink-downlink configuration 2 is used for radio frames, uses 11 HARQ processes；
Uplink-downlink configuration 3 is used for radio frames, uses 10 HARQ processes；
Uplink-downlink configuration 4 is used for radio frames, uses 13 HARQ processes；
Uplink-downlink configuration 5 is used for radio frames, uses 16 HARQ processes；
Uplink-downlink configuration 6 is used for radio frames, uses 7 HARQ processes.
During specific implementation, relay node sends the passback uplink being carried on PUSCH at the first moment to base station
Business, the access uplink service being carried on PUSCH that its terminal R-UE covered is sent in the second reception, described first
Moment is different from second moment.
Optionally, its covering is received while relay node sends the passback uplink service being carried on PUSCH to base station
Terminal R-UE send the access uplink service being carried on PUSCH, passback uplink service and access uplink service between
It is idle to have a certain amount of resource block.
It is described as follows for the new ascending HARQ sequential relationship of Backhaul link.
Table one:
k for TDD configurations 0-6
The PDCCH-PUSCH sequential relationship of backhaul link is as shown in Table 1 in the present embodiment, wherein subframe n is issued
PDCCH, then subframe n+k send PUSCH uplink traffic transmission, with underscore digital value from be different in the prior art
's.
Above-mentioned table one kind is for TDD time slot proportion 0, only a part of sequential relationship, for TDD 0 it is complete when
Order relation should individually redefine as follows:
1) for TDD 0, if the MSB of UL index field of the UE in the PDCCH uplink authorization that subframe n is received is set
It is 1, or the PHICH received in subframe 0 or 5 corresponds to IPHICH=0, then UE can send corresponding PUSCH in subframe n+k.
(IPHICHFor PHICH channel indexes, value 0 or 1)
2) for TDD 0, if UL index field of the UE in the PDCCH uplink authorization that subframe 0 or 5 receives
LSB is set to 1, or the PHICH received in subframe 0 or 5 corresponds to IPHICH=1, then UE can send corresponding PUSCH in subframe n+9.
3) for TDD 0, if UL index field of the UE in the PDCCH uplink authorization that subframe 1 or 6 receives
LSB is set to 1, or the PHICH received in subframe 1 or 6 corresponds to IPHICH=1, then UE can be sent corresponding in subframe n+11
PUSCH。
4) for TDD 0, if UL index field of the UE in the PDCCH uplink authorization that subframe 0 or 5 receives
MSB and LSB is set to 1, then UE can send corresponding PUSCH in subframe n+k and n+9.
5) for TDD 0, if UL index field of the UE in the PDCCH uplink authorization that subframe 1 or 6 receives
MSB and LSB is set to 1, then UE can send corresponding PUSCH in subframe n+k and n+11.
It is described as follows for Backhaul link PUSCH-PHICH sequential relationship.
Table two:
kPHICH for TDD
In table two, it no matter is in which kind of TDD time slot proportion, UE sends out data in PUSCH in subframe n, all unified according to upper
Table two is stated, it is expected that receiving downlink PHICH message in n+kPHICH.It is then different with existing protocol for having underscore numerical value in table two
Numerical value.
It is described as follows for the ascending HARQ course number of Backhaul link.
Table three:
Number of synchronous UL HARQ processes for TDD
It is the demand that the new HARQ process number of uplink is carried out on backhaul link in table three, under having in table three
The numerical value of scribing line is the opposite different numerical value of existing protocol.New definition has been carried out in the present embodiment to it:
Uplink redundancy process: the process newly increased relative to the original process number of agreement is referred to.So-called HARQ process be
Some data packet authorize-transmission-feed back-again between sub-authorization there are when various time delay spacings, for the company of can guarantee
Resume it is defeated, and define parallel transmission data processing needed for resource and process.And in LTE system, time delay spacing is mainly
The data receiver processing delay of propagation delay time, base station and terminal, algorithm process time delay and group packet transmission delay, and these are once true
HARQ number of processes required for rule determines that.But due to having used new sequential relationship in backhaul link,
It is artificial although processing delay and air interface transmission time delay on hardware and software, these objective time delays all do not change
Increase certain event handling time interval, then having led to continuing guaranteeing to continuously transmit, then need to increase HARQ
Process number.Exactly because originally according to objective capability, existing process number fully meets requirement, so the process newly increased
Referred to as redundancy process.
It is passed in the backhaul sequential relationship of TDD proportion 0,1,6 using by uplink corresponding to scheduling instance as a result,
The mode that the defeated moment is delayed.Relative to existing protocol, PDCCH scheduling instance is constant, and the PUSCH transmission moment is delayed, and PUSCH is passed
Defeated-PHICH feedback sequential relationship is constant.But required process number is increased than former agreement, has redundancy process.In addition, due to TDD
0 particularity, the relatively former agreement of PDCCH-PUSCH sequential relationship has delayed two sub-frame of uplink, so redundancy process number is 2
It is a, and the redundancy process number of TDD 1,6 only has 1.
The backhaul sequential relationship that TDD matches 2,3,4,5, which is designed, transmits corresponding scheduling using sub-frame of uplink
The mode that moment shifts to an earlier date.Relative to former agreement, the variation of PDCCH scheduling instance shifts to an earlier date, and the PUSCH transmission moment is constant, and PUSCH is passed
Defeated-PHICH feedback sequential relationship needs to change adjustment.But it can guarantee that entire HARQ loopback delay remains unchanged, not need to increase
Add new HARQ process number.
Particularly, for the joint uplink scheduling of backhaul and access link:
Due to the redesign of above-mentioned backhaul link (eNB is to RN) sequential relationship, the effect being finally reached is,
Backhaul link relative to access link mutually the uplink moment corresponding to uplink scheduling is delayed in the same time, Huo Zhetong
The scheduling instance of backhaul corresponding to the uplink at one moment more shifts to an earlier date.It means that when some scheduling
It carves, access link (eNB is to M-UE and RN to R-UE) can know PUSCH corresponding to the scheduling when being scheduled
Transmission time, the backhaul link that PUSCH resource has been dispatched before occupy how many.So access at the moment
When link is scheduled, then the traffic channel resource of backhaul link institute's forward scheduling occupancy purposive can be avoided.
In time division way TDM, backhaul dispatches the PUSCH transmission at certain moment, and the moment all PUSCH resources are complete
Portion occupy, the access link scheduling moment, if it find that the PUSCH transmission moment have backhaul scheduling, then the moment not into
Row scheduling.Under this mode, absolutely not interfered with each other between access link and the PUSCH transmission of return link.
In frequency division manner FDM, backhaul dispatches the PUSCH transmission at certain moment, only distributes moment part PUSCH money
Source, so the access link scheduling moment can then distribute surplus if it find that the PUSCH transmission moment has backhaul scheduling
Remaining PUSCH resource.Due to carrying out simultaneously at RN, RN receives the PUSCH of the access link of R-UE and RN is to the passback chain of eNB
The PUSCH on road is sent, actually co-located interference between the two, is interfered very big.The two so synchronization is staggered by frequency division
PUSCH transmission resource while, interfere with each other, can be determined by dispatching algorithm to reserving between the two in order to be further reduced
Certain PUSCH RB resource work is isolated.
For Fig. 3, Fig. 3 show relaying passback and access link uplink scheduling sequential relationship schematic diagram, and
It is with the illustration of time slot proportion 2 in Fig. 3.
The transmission method of the embodiment of the present invention can satisfy the transmission requirement in 5G to return link, have the advantage that
1) transmission of higher rate can be supported；Maximum it can use identical sub-frame of uplink number in the normal time slot proportion of TDD
Backhaul transmission is carried out, resource is unrestricted.
2) flexible transmission time points can be supported to configure, meet high delay requirement；It is normal that any one TDD can be used
Any one sub-frame of uplink in time slot proportion carries out backhaul uplink, and transmission time points are unrestricted.
3) most flexible Resource Allocation Formula, can be truly realized in scheduling granularity level in backhaul link and
Transfer resource needed for complete dynamic regulation between access link, or when the return link that is configured does not have use demand,
Resource flexibly can be released to other users or base station uses, such as some micro- station of Temporarily Closed；
4) it on the basis of not influenced on the HARQ timing and transmission flow of existing ordinary terminal, preferably solves
Traffic channel transmission between backhaul and access link interferes with each other problem.Have to existing system compatible well
Property.
To be better understood from above-mentioned invention, the sequential relationship used below to access link in existing LTE protocol is adopted
It is described as follows with table four to table six.
The PDCCH-PUSCH timing of four: access link of table
k for TDD configurations 0-6
In table four, for TDD 0, if UE is set to 1 in the MSB of the UL index of the subframe n PDCCH received, or
I is corresponded in the PHICH that subframe 0 or 5 receivesPHICH=0, then UE can send corresponding PUSCH in subframe n+k.
For TDD 0, if UE is set to 1 in the LSB of the UL index of the subframe n PDCCH received, or in subframe 0 or 5
The PHICH received corresponds to IPHICH=1, or receive PHICH in subframe 1 or 6, then UE can be sent corresponding in subframe n+7
PUSCH。
For TDD 0, if UE is set to 1, UE in the MSB and LSB of the UL index of the subframe n PDCCH received
Corresponding PUSCH can be all sent in subframe n+k and n+7.
The PUSCH-PHICH timing of five: access link of table
kPHICH for TDD
The ascending HARQ course number of six: access link of table
Number of synchronous UL HARQ processes for TDD
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of ascending transmission method for relaying return link characterized by comprising relay node is received in wireless sub-frame n
The Downlink Control Information being carried in the physical downlink control channel PDCCH of return link that base station is sent, and in wireless sub-frame n
K-th of wireless sub-frame n+k sends the downlink that corresponds to being carried on Physical Uplink Shared Channel PUSCH to base station and controls later
The passback uplink service of information, wherein
Uplink-downlink configuration 0, when n=0,1,5 or 6, k=8 are used for radio frames；
Uplink-downlink configuration 1 is used for radio frames, when n=1 or 6, k=7, n=4 or when 9, k=8；
Uplink-downlink configuration 2, when n=1 or 6, k=6 are used for radio frames；
Uplink-downlink configuration 3, when n=7,8 or 9, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=7 or 8, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=7 for radio frames, k=5；
Uplink-downlink configuration 6 is used for radio frames, when n=0,5,6 or 9, when k=8, n=1, k=11.
2. the method according to claim 1, wherein further include: uplink-downlink configuration 0 is used for radio frames, such as
The MSB of UL index field of the fruit relay node in the uplink authorization being carried on PDCCH that wireless sub-frame n is received is 1,
Or the I being carried on physics hybrid automatic retransmission instruction channel PHICH received in subframe 0 or 5PHICH=0, then relay section
Point can send corresponding passback uplink service in subframe n+k, wherein IPHICHFor PHICH channel indexes.
3. the method according to claim 1, wherein further include: uplink-downlink configuration 0 is used for radio frames, such as
The LSB of UL index field of the fruit relay node in the uplink authorization being carried on PDCCH that wireless sub-frame 0 or 5 receives
It is 1, or the I being carried on PHICH received in subframe 0 or 5PHICH=1, then relay node sends in subframe n+9 and corresponds to
Passback uplink service, wherein IPHICHFor PHICH channel indexes.
4. the method according to claim 1, wherein further include: uplink-downlink configuration 0 is used for radio frames, such as
The LSB of UL index field of the fruit relay node in the uplink authorization being carried on PDCCH that wireless sub-frame 1 or 6 receives
It is 1, or the I being carried on PHICH received in subframe 1 or 6PHICH=1, then relay node sends uplink in subframe n+9
Business, wherein IPHICHFor PHICH channel indexes.
5. the method according to claim 1, wherein further include: uplink-downlink configuration 0 is used for radio frames, such as
The MSB of UL index field of the fruit relay node in the uplink authorization being carried on PDCCH that wireless sub-frame 0 or 5 receives
It is 1 with LSB, then relay node all sends corresponding passback uplink service in subframe n+k and n+9.
6. the method according to claim 1, wherein further include: uplink-downlink configuration 0 is used for radio frames, such as
The MSB of UL index field of the fruit relay node in the uplink authorization being carried on PDCCH that wireless sub-frame 1 or 6 receives
It is 1 with LSB, then relay node all sends uplink service in subframe n+k and n+11.
7. the method according to claim 1, wherein further include:
Relay node sends the uplink service for being carried on Physical Uplink Shared Channel PUCCH in wireless sub-frame m to base station, then in nothing
Line subframe m+j receives the physics hybrid automatic retransmission instruction information being carried on PHICH；
Uplink-downlink configuration 2, when n=2 or 7, k=4 are used for radio frames；
Uplink-downlink configuration 3, when n=2,3 or 4, k=5 are used for radio frames；
Uplink-downlink configuration 4, when n=2 or 3, k=5 are used for radio frames；
When using uplink-downlink configuration 5, n=2 for radio frames, k=5.
8. the method according to claim 1, wherein further include:
Uplink-downlink configuration 0 is used for radio frames, uses 5 hybrid automatic retransmission HARQ processes；
Uplink-downlink configuration 1 is used for radio frames, uses 8 HARQ processes；
Uplink-downlink configuration 2 is used for radio frames, uses 11 HARQ processes；
Uplink-downlink configuration 3 is used for radio frames, uses 10 HARQ processes；
Uplink-downlink configuration 4 is used for radio frames, uses 13 HARQ processes；
Uplink-downlink configuration 5 is used for radio frames, uses 16 HARQ processes；
Uplink-downlink configuration 6 is used for radio frames, uses 7 HARQ processes.
9. the method according to claim 1, wherein further include:
Relay node sends the passback uplink service that is carried on PUSCH to base station at the first moment, the second reception its
The access uplink service being carried on PUSCH that the terminal R-UE of covering is sent, when first moment is different from described second
It carves.
10. the method according to claim 1, wherein further include:
Relay node receives its terminal R-UE hair covered while sending the passback uplink service being carried on PUSCH to base station
The access uplink service being carried on PUSCH sent, leaving unused between passback uplink service and access uplink service, there have to be a certain amount of
Resource block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564379.3A CN106506129B (en) | 2015-09-07 | 2015-09-07 | Relay the ascending transmission method of return link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510564379.3A CN106506129B (en) | 2015-09-07 | 2015-09-07 | Relay the ascending transmission method of return link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106506129A CN106506129A (en) | 2017-03-15 |
| CN106506129B true CN106506129B (en) | 2019-09-06 |
Family
ID=58286460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510564379.3A Active CN106506129B (en) | 2015-09-07 | 2015-09-07 | Relay the ascending transmission method of return link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106506129B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167174B (en) * | 2018-02-14 | 2023-07-28 | 华为技术有限公司 | Relay transmission method and device |
| CN110365457B (en) * | 2018-04-11 | 2021-01-15 | 成都华为技术有限公司 | Transmission method and device of reference signal |
| CN110418412B (en) * | 2018-04-28 | 2022-01-14 | 华为技术有限公司 | Beam management method, relay transceiving node, terminal and base station |
| US20220124763A1 (en) * | 2019-02-01 | 2022-04-21 | Ntt Docomo, Inc. | User terminal and radio communication method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902820A (en) * | 2009-05-25 | 2010-12-01 | 大唐移动通信设备有限公司 | Method and system for transmitting uplink data and device |
| CN102064878A (en) * | 2009-11-13 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for indicating uplink data transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8734035B2 (en) * | 2010-07-29 | 2014-05-27 | Brady Worldwide, Inc. | Media cartridge with shifting ribs |
-
2015
- 2015-09-07 CN CN201510564379.3A patent/CN106506129B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902820A (en) * | 2009-05-25 | 2010-12-01 | 大唐移动通信设备有限公司 | Method and system for transmitting uplink data and device |
| CN102064878A (en) * | 2009-11-13 | 2011-05-18 | 大唐移动通信设备有限公司 | Method and device for indicating uplink data transmission |
Non-Patent Citations (3)
| Title |
|---|
| .《3GPP TS 36.213 V10.2.0》.2011,说明书第71页，表8-2，说明书第23页，表格7-1. |
| 3GPP.3rd Generation Partnership Project |
| Technical Specification Group Radio Access Network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106506129A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101789630B1 (en) | Method for transmitting and receiving signal of relay in radio communication system supporting multiple carriers | |
| US9265053B2 (en) | System and method for assigning backhaul resources | |
| CN102907159B (en) | The Resource Availability of physical down link sharing channel (PDSCH) in relay backhaul transmission | |
| WO2011038783A1 (en) | A method and apparatus | |
| KR20120013406A (en) | Method, device and system for backhaul link communication in tdd system | |
| US9001799B2 (en) | Method of transmitting and receiving signal in a distributed antenna system | |
| CN103875297A (en) | Allocating backhaul resources | |
| KR20100064191A (en) | Method, apparatus and system for transmit data in multi hop relay system | |
| CN106506129B (en) | Relay the ascending transmission method of return link | |
| CN106506424B (en) | Relay the control channel transmission method of return link | |
| CN102271016B (en) | A kind of collocation method of novel TDD HARQ UL Un subframe | |
| CN101895987B (en) | Method and system for uplink resource configuration indication and data transmission of return link | |
| CN101814944B (en) | Data transmission method, system and device | |
| CN107535010A (en) | A kind of LTE is with interior trunking method, apparatus and system | |
| CN101547512B (en) | Layered heterogeneous distributed base station and method | |
| CN102948111B (en) | Trunking method in radio communications system and node | |
| CN101895379B (en) | Method and system for realizing uplink retransmission of access link | |
| CN106304352B (en) | Configuration method, method for transmitting signals and the node of more wireless link sharing resources | |
| US20150304016A1 (en) | Relay system for moving object | |
| CN101442755B (en) | Radio communication system capable of supporting Relay | |
| CN101442357A (en) | Method and system for wireless transmission adopting Relay supported frame structure | |
| CN106506184B (en) | Downlink transmission method of relay return link | |
| CN102413571A (en) | Downlink relay backhaul resource allocation device and method | |
| JP2009206790A (en) | Wireless communication system and scheduling method | |
| CN103313395A (en) | Method and device for realizing multi-user multiple input multiple output in relay transmission system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |