CN101931960A - Method for avoid uplink transmission conflict, system and device - Google Patents
Method for avoid uplink transmission conflict, system and device Download PDFInfo
- Publication number
- CN101931960A CN101931960A CN2009100869073A CN200910086907A CN101931960A CN 101931960 A CN101931960 A CN 101931960A CN 2009100869073 A CN2009100869073 A CN 2009100869073A CN 200910086907 A CN200910086907 A CN 200910086907A CN 101931960 A CN101931960 A CN 101931960A
- Authority
- CN
- China
- Prior art keywords
- timing relationship
- back haul
- haul link
- uplink
- base station
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000011664 signaling Effects 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 19
- 238000011144 upstream manufacturing Methods 0.000 description 14
- 230000001174 ascending effect Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 6
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 4
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a method for avoiding an uplink transmission conflict, a system and a device thereof. The method comprises the following steps: base station equipment configures the uplink timing relation of a return link to ensure that the uplink timing relation of the return link is greater than that of an access link, wherein the return link is used for transmitting data between the base station equipment and a relay node, and the access link is used for transmitting data between the relay node and user equipment; and the base station equipment transmits data with the relay node according to the uplink timing relation of the return link. The embodiment of the invention avoids the conflict of uplink transmission, not only ensures the quality of uplink transmission, but also realizes the sufficient utilization of uplink resources.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of mthods, systems and devices of avoiding uplink transmission conflict.
Background technology
Along with 3G (the 3rd Generation, 3G (Third Generation) Moblie) commercialization of technology, as the back 3G standard that great popular demand, LTE (Long Term Evolution, long evolving system) standard is near finishing, LTE-A (Long Term Evolution Advanced, advanced long-term evolution system) standardization effort also launches in full preparation.
LTE-A is a kind of technology of backward compatibility, complete compatible LTE.Wherein, relaying (Relay) technology is one of new technology of LTE-A introducing, in order to realize relaying technique, has correspondingly introduced RN (Relay Node, via node) in the mobile communication system.As shown in Figure 1, wireless portion schematic diagram for the mobile communication system behind the introducing RN, mainly comprise eNB (enhanced Node B, the enhancement mode Node B), RN and UE (User Equipment, subscriber equipment) three parts, the Radio Link of this wireless portion comprises following three: the direct projection link between eNB and the macro UE (direct link), access link (access link) between back haul link between eNB and the RN (backhaul link) and RN and the relay UE, wherein, Macro UE accepts the service that eNB directly provides, and Relay UE accepts the service that RN provides.
Consider the signal interference-limited of radio communication, direct projection link, back haul link and access link need use the Radio Resource of quadrature.Because the mode of operation of the transceiver of RN is a half-duplex time-division mode of operation, the transmitter of RN has interference to the receiver of self, the operation that RN can not receive simultaneously and send on same frequency, promptly back haul link and access link are unsuitable for coexisting on same frequency resource.
In order to solve the coexistence problems between back haul link and the access link, make the communication network of introducing RN can compatible Rel-8UE, and keep Relay UE to have identical frame structure with Macro UE, system introduces MBSFN (Multicast Broadcast Single Frequency Network, multicast single frequency network) subframe.After the frame structure of RN is configured to the MBSFN subframe, there are 2 or 3 OFDM (Orthogonal Frequency Division Multiplexing, OFDM) the descending control signaling zone of symbol, this zone are used for RN and send descending control signaling to Relay UE.When RN received from the back haul link data of eNB, RN did not send data to Relay UE, promptly creates transmission gap (gaps) by the MBSFN subframe in the transmission time at descending access link, as shown in Figure 2.In transmission gap, UE (comprising Rel-8UE) can not expect any transfer of data from RN, eNB can utilize the descending back haul link transmission between interior subframe realization of this transmission gap and the RN, even the subframe of transmission gap is not used in the downlink data of transmission back haul link, can not be used for the downlink transfer of access link, thereby avoid back haul link to conflict with the downlink transfer between the access link.
Yet, using HARQ (Hybrid Auto Repeat request, mix automatic repeat requests) mechanism communication system in, when Relay UE according to the HARQ timing relationship on the access link when RN sends upstream data, if RN sends ACK (the Acknowledge Character of upstream data or downlink data transmission to base station equipment on back haul link, acknowledge character)/NACK (Negative Acknowledgment, the notice of makeing mistakes) feedback, then produce transmission collision between back haul link and the access link, RN is because self semiduplex characteristic can't receive the upstream data from Relay UE.
With FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system is an example, when subframe n is configured to the MBSFN subframe, RN can be in the control signaling area of subframe n sends the ACK feedback of uplink and at UL grant (the Uplink grant of access link to Relay UE, the uplink scheduling permission), can also receive downlink data and the control information that base station equipment sends in the transfer of data zone of subframe n, this control information comprises the ACK feedback to the uplink of back haul link, DLassignment (Downlink assignment, downlink allocation) and UL grant.According to the HARQ timing relationship, R-UE need send upstream data to RN by subframe n+4 according to UL grant on access link, and simultaneously, RN also may send the ACK feedback or the upstream data of downlink data transmission to base station equipment on back haul link.Because RN is semiduplex, transceive data simultaneously, therefore, at RN when base station equipment sends upstream data or control information, RN can not receive the upstream data of RelayUE, i.e. the up initial transmission on the access link and the uplink transmission conflict of back haul link, as shown in Figure 3.Because the ascending HARQ RTT on the access link is 8ms, therefore, uplink synchronous retransmit also may with the uplink transmission conflict of back haul link, as shown in Figure 4.
According to present LTE agreement, RN can know that according to the scheduling situation of self Relay UE can send upstream data in the subframe of transmission collision, therefore, RN can be under situation about not receiving from the upstream data of RelayUE, send NACK according to the HARQ timing relationship on the access link to Relay UE, make Relay UE retransmit upstream data according to the HARQ timing relationship.
The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:
In the prior art, the half-duplex time-division mode of operation of RN can cause the uplink transmission conflict between back haul link and the access link, because RN can't receive upstream data from Relay UE by access link, Relay UE need upload upstream data many times to RN according to the HARQ timing relationship, caused the unnecessary power consumption of Relay UE, and caused the co-channel interference of access link back haul link.
Summary of the invention
The embodiment of the invention provides a kind of mthods, systems and devices of avoiding uplink transmission conflict, to guarantee the quality of uplink, realizes making full use of of ascending resource.
The embodiment of the invention provides a kind of method of avoiding uplink transmission conflict, comprising:
The up timing relationship of base station equipment configuration back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, described back haul link is used for the transfer of data between described base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Described base station equipment is carried out transfer of data according to the up timing relationship of the back haul link of described configuration with described via node.
Preferably, the timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and the corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and the corresponding up feedback.
Preferably, the up timing relationship of described base station equipment configuration back haul link is specially:
Described base station equipment postpones the up timing relationship of described back haul link, any one realization in the described delay in the following manner:
Described base station equipment transmits control message to described via node by physical downlink control channel PDCCH, carries the subframe indication that postpones described up timing relationship in the described control messages, comprises the length of delay of described up timing relationship in the described subframe indication;
Described base station equipment is notified described via node by the up timing relationship of radio resource control RRC signaling after with described delay, carries the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling.
Preferably, the sub-frame of uplink of described back haul link is multiplexing in the uplink of described back haul link and the uplink of described access link.
Preferably, the up timing relationship of described back haul link is specially greater than the up timing relationship of access link:
Timing relationship between the uplink of described back haul link scheduling and the corresponding uplink greater than the uplink of described access link dispatch with corresponding uplink between timing relationship, and/or
Timing relationship between the downlink transfer of described back haul link and the corresponding up feedback is greater than the timing relationship between the downlink transfer of described access link and the corresponding up feedback.
Preferably, the timing relationship between the uplink of described back haul link scheduling and timing relationship between the corresponding uplink downlink transfer that equals described back haul link and the corresponding up feedback.
The embodiment of the invention also provides a kind of base station equipment, comprising:
Configuration module, be used to dispose the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, described back haul link is used for the transfer of data between base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Transport module is used for the up timing relationship according to the back haul link of described configuration module configuration, carries out transfer of data with described via node.
Preferably, described configuration module specifically is used to postpone the up timing relationship of described back haul link, any one realization in the described delay in the following manner:
Transmit control message to described via node by physical downlink control channel PDCCH, carry the subframe indication that postpones described up timing relationship in the described control messages, comprise the length of delay of described up timing relationship in the described subframe indication;
Notify described via node by the up timing relationship of radio resource control RRC signaling after, carry the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling described delay.
The embodiment of the invention also provides a kind of via node, comprising:
Acquisition module, be used to obtain the up timing relationship of the back haul link of base station equipment configuration, the up timing relationship of described back haul link is greater than the up timing relationship of access link, described back haul link is used for the transfer of data between described base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Transport module is used for the up timing relationship of the back haul link that obtains according to described acquisition module, carries out transfer of data with described base station equipment.
Preferably, described acquisition module, specifically be used to receive the control messages that the PDCCH from described base station equipment carries, the subframe indication of carrying the up timing relationship that postpones described back haul link in the described control messages comprises the length of delay of described up timing relationship in the described subframe indication; Or
Reception is carried the length of delay of described up timing relationship from the radio resource control RRC signaling of described base station equipment in the physical layer configuration parameter of described RRC signaling.
The embodiment of the invention also provides a kind of system that avoids uplink transmission conflict, comprising:
Base station equipment, be used to dispose the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, and according to the up timing relationship of the back haul link of described configuration, carry out transfer of data with via node, described back haul link is used for the transfer of data between described base station equipment and the described via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Via node is used to obtain the up timing relationship of the back haul link of described base station equipment configuration, and according to the up timing relationship of the described back haul link that obtains, carries out transfer of data with described base station equipment.
The embodiment of the invention comprises following advantage, by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, making via node send data to base station equipment carries out in different subframes from the data of subscriber equipment with receiving, avoided the conflict of uplink, both guarantee the quality of uplink, realized making full use of of ascending resource again.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the embodiment of the invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the wireless portion schematic diagram of the mobile communication system behind the introducing RN;
Fig. 2 is the transmission gap schematic diagram in the descending access link transmission time;
Fig. 3 is the up initial transmission on the access link and the uplink transmission conflict schematic diagram of back haul link;
Fig. 4 is that the uplink synchronous on the access link retransmits the uplink transmission conflict schematic diagram with back haul link;
Fig. 5 is the HARQ process schematic diagram in the FDD system;
Fig. 6 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention one;
Fig. 7 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention two;
Fig. 8 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention three;
Fig. 9 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention four;
Figure 10 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention five;
Figure 11 is the structural representation of a kind of via node in the embodiment of the invention six;
Figure 12 is the structural representation of a kind of via node in the embodiment of the invention seven;
Figure 13 is a kind of system configuration schematic diagram of avoiding uplink transmission conflict in the embodiment of the invention eight.
Embodiment
The technical scheme that the embodiment of the invention provides is, the up timing relationship of base station equipment configuration back haul link, make the up timing relationship of the up timing relationship of back haul link, and, carry out transfer of data with via node according to the up timing relationship of back haul link of configuration greater than access link.
The embodiment of the invention is applied to use in the communication system of HARQ mechanism, HARQ mechanism is a kind of link adaptation techniques, receiving terminal make a start data block of retransmits erroneous of request fast when exceeding self error correcting capability, automatically the variation of adaptive channel condition, and insensitive to measure error and time delay, improved reliability of data transmission.
In the FDD system, by PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) the descending scheduling order of Fa Songing occurs in same subframe with the downlink transfer of being undertaken by PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel); By the timing relationship between PDCCH uplink scheduling order that sends and the uplink of being undertaken by PUSCH (Physical uplink shared channel, Physical Uplink Shared Channel) is 4ms; Downlink transfer is 4ms with timing relationship between the corresponding up direction feedback; Timing relationship between uplink is fed back with the down direction that is undertaken by PHICH (Physical hybrid automatic repeat request indicator channel, the automatic repeat requests indicating channel of physical mixed) is 4ms.Wherein, PDCCH is a down channel, is used for allocation of downlink or uplink transmission resource; PDSCH is used to send downlink data packet; PUSCH is used to send the upstream data bag; PHICH is a down channel, is used to transmit the ACK/NACK feedback information of PUSCH correspondence.
As shown in Figure 5, be the HARQ process schematic diagram in the FDD system, comprise the steps: that base station equipment sends downlink data n subframe to terminal, terminal is carried out uplink ACK/NACK feedback n+4 subframe to base station equipment; After base station equipment receives ACK, confirm that downlink data transmission is correct, this downlink data is submitted to high-rise; Otherwise base station equipment retransmits downlink data n+8 subframe.
And at TDD (Time Division Duplex, time division duplex) in the system, though descending scheduling order and downlink transfer occur in same subframe, but because system supports multiple UL (Uplink, up link)/DL (Downlink, down link) configuration, timing relationship between the descending sub frame of transmission UL grant and the PUSCH of UL grant correspondence is different under different UL/DL configurations, simultaneously, the timing relationship between the sub-frame of uplink of the ACK feedback use of the descending sub frame of downlink data transmission use and this downlink data correspondence is also different under different UL/DL configurations.
As shown in table 1, be the UL/DL allocation list in the TDD system, this table is used to be illustrated in the different UL/DL configurations function of different subframes down.Wherein, n is the subframe numbering, and D represents descending sub frame, and U represents descending sub frame, and S represents special subframe.
UL/DL allocation list in the table 1TDD system
As shown in table 2, be the timing relationship table between the PUSCH of UL grant and correspondence, this table is used to represent to transmit the relation between the subframe numbering of PUSCH of the descending sub frame numbering of UL grant and UL grant correspondence, wherein, n is the descending sub frame numbering of transmission UL grant, the subframe of the PUSCH of UL grant correspondence is numbered n+k1, and the content in the table 2 is the value of k1.
Timing relationship table between the PUSCH of table 2UL grant and correspondence
As shown in table 3, be the timing relationship table of downlink data transmission with corresponding ACK feedback, this table is used to represent the relation between the sub-frame of uplink numbering that the ACK feedback of descending sub frame numbering that downlink data transmission is used and this downlink data correspondence uses, wherein, n is the sub-frame of uplink numbering at ACK feedback place, the transmission of ACK feedback corresponding downlink data occurs in the descending sub frame that is numbered n-k2, and the content in the table 3 is the value of k2:
The timing relationship table of table 3 downlink data transmission and corresponding ACK feedback
As shown in table 4, be the timing relationship table of transmitting uplink data with corresponding ACK feedback, this table is used to represent the relation between the descending sub frame numbering that the ACK feedback of sub-frame of uplink numbering that transmitting uplink data is used and this upstream data correspondence uses, wherein, n is the descending sub frame numbering at ACK feedback place, the corresponding transmitting uplink data of ACK feedback occurs in the sub-frame of uplink that is numbered n-k3, and the content in the table 4 is the value of k3:
The timing relationship table of table 4 transmitting uplink data and corresponding ACK feedback
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 6, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention may further comprise the steps:
Wherein, back haul link is used for the transfer of data between base station equipment and the via node, and access link is used for the transfer of data between via node and the subscriber equipment.Timing relationship between the uplink scheduling that the up timing relationship of back haul link comprises back haul link and the corresponding uplink, and/or the timing relationship between the downlink transfer of back haul link and the corresponding up feedback.Timing relationship between the uplink of back haul link scheduling and the corresponding uplink greater than the uplink of access link dispatch with corresponding uplink between timing relationship, timing relationship between the downlink transfer of back haul link and the corresponding up feedback is greater than the timing relationship between the downlink transfer of access link and the corresponding up feedback, the timing relationship between the downlink transfer that the uplink scheduling of back haul link and timing relationship between the corresponding uplink equal back haul link and the corresponding up feedback.
For the FDD system, timing relationship between the uplink of existing back haul link scheduling and the corresponding uplink, and the downlink transfer of back haul link is 4ms (millisecond with timing relationship between the corresponding up feedback, millisecond), up timing relationship for the back haul link that postpones the FDD system, can the uplink scheduling of back haul link be configured to (4+k1) ms with timing relationship between the corresponding uplink by the PDCCH in FDD system order, the downlink transfer of back haul link is configured to (4+k2) ms with timing relationship between the corresponding up feedback, wherein, k1 is integer and k1＞0, k2 is integer and k2＞0, and k1 and k2 can equate also can not wait.
For the TDD system, timing relationship between the uplink of existing back haul link scheduling and the corresponding uplink, and the timing relationship between the downlink transfer of back haul link and the corresponding up feedback is according to 3GPP (3rd Generation Partnership Project, third generation partner program TS (Technical Specification, technical specification) associated description in 36.213 is determined, up timing relationship for the back haul link that postpones the TDD system, can the uplink scheduling of back haul link be configured to (k+k1) ms with timing relationship between the corresponding uplink by the PDCCH in TDD system order, the downlink transfer of back haul link is configured to (k+k2) ms with timing relationship between the corresponding up feedback, wherein, k is existing up timing relationship, k1 is integer and k1＞0, k2 is integer and k2＞0, and k1 and k2 can equate also can not wait.
The up timing relationship of base station equipment configuration back haul link, be specially: base station equipment postpones the up timing relationship of back haul link, any one realization during this postpones in the following manner:
(1) base station equipment transmits control message to via node by PDCCH, carries the subframe indication that postpones up timing relationship in this control messages, comprises the length of delay of up timing relationship in this subframe indication.
Particularly, at the UL of PDCCH grant (Uplink grant, the uplink scheduling permission) carries the subframe indication of PUCCH in, at DL Assignment (Downlink assignment, downlink allocation) carries the subframe indication of downlink data being carried out up feedback in, the subframe indication can be the length of delay of up timing relationship, promptly above-mentioned k value.
(2) the up timing relationship after base station equipment will postpone by the RRC signaling is notified via node, carries the length of delay of up timing relationship in the physical layer configuration parameter of this RRC signaling.
(3) the up timing relationship of fixed backhaul link in agreement comprises the timing relationship between uplink scheduling and the corresponding uplink, and the timing relationship between the downlink transfer of back haul link and the corresponding up feedback.
Wherein, the sub-frame of uplink of back haul link is multiplexing in the uplink of back haul link and the uplink of access link.
After via node receives up timing relationship from the back haul link of base station equipment, the up timing relationship of setting according to base station equipment carries out the uplink of back haul link and the uplink of access link, sends data and receives data from subscriber equipment to base station equipment.
For the FDD system, the up timing relationship of the access link between existing via node and the subscriber equipment is 4ms, after having postponed the up timing relationship of back haul link, the up timing relationship of back haul link is greater than the up timing relationship of access link, the transmitting uplink data of access link is at least early than the transmitting uplink data 1ms of access link, promptly at least will be early than a subframe, for semiduplex RN, realized that the uplink of back haul link and the uplink timesharing of access link carry out, avoided the conflict of uplink.
For the TDD system, the up timing relationship of the access link between existing via node and the subscriber equipment is determined according to the associated description among the 3GPP TS36.213, after having postponed the up timing relationship of back haul link, the up timing relationship of back haul link is greater than the up timing relationship of access link, the uplink of access link is at least early than 1 subframe of uplink of access link, for semiduplex RN, realized that the uplink of back haul link and the uplink timesharing of access link carry out, avoided the conflict of uplink.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, making via node send data to base station equipment carries out in different subframes from the data of subscriber equipment with receiving, avoided the conflict of uplink, both guarantee the quality of uplink, realized making full use of of ascending resource again.
Below by concrete application scenarios, method in the embodiment of the invention one is carried out in detail, concrete description, wherein, the uplink of back haul link scheduling is kb1 with timing relationship between the corresponding uplink, the downlink transfer of back haul link is kb2 with timing relationship between the corresponding up feedback, the uplink of access link scheduling is ka1 with timing relationship between the corresponding uplink, the downlink transfer of back haul link is ka2 with timing relationship between the corresponding up feedback, kb1 greater than ka1 and kb2 greater than ka2, kb1 and kb2 can equate also can not wait, and ka1 and ka2 can equate also can not wait.
As shown in Figure 7, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention two may further comprise the steps:
Need to prove that because ka1 and ka2 can equate also can not wait, the execution sequence between this step and the step 204 does not have precedence relationship.
Need to prove that because kb1 and kb2 can equate also can not wait, the execution sequence between this step and the step 206 does not have precedence relationship.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, conflicting between the uplink of having avoided back haul link and the uplink of access link, both guarantee the quality of uplink, realized making full use of of ascending resource again.
As shown in Figure 8, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention three may further comprise the steps:
Step 301, at subframe n, via node is dispatched corresponding subscriber equipment in the scheduling and downlink transfer that receive from base station equipment.
Step 302, at subframe n+kb2-ka1, whether relay node judges needs to send up feedback to base station equipment on subframe n+kb2, sends up feedback to base station equipment if desired, and then execution in step 307; If do not need to send up feedback to base station equipment, then execution in step 303.
Step 303, at subframe n+kb2-ka1, the uplink of via node scheduling user's set.
Step 304, at subframe n+ka1, subscriber equipment carries out uplink according to the scheduling of via node.
Step 305, at subframe n+ka2, subscriber equipment carries out up feedback according to the downlink transfer of via node.
Need to prove that because ka1 and ka2 can equate also can not wait, the execution sequence between this step and the step 304 does not have precedence relationship.
Step 306, at subframe n+kb1, via node carries out uplink according to the scheduling of base station equipment.
Step 307, at subframe n+kb2, the downlink transfer of the base station equipment of via node basis is carried out up feedback.
Need to prove that because kb1 and kb2 can equate also can not wait, the execution sequence between this step and the step 306 does not have precedence relationship.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, conflicting between the uplink of having avoided back haul link and the uplink of access link, both guarantee the quality of uplink, realized making full use of of ascending resource again.
Following examples are example with the FDD system, and the method for exempting from uplink transmission conflict in the foregoing description is described in detail in detail.Wherein, the up timing relationship of access link is 4ms, and the up timing relationship of the back haul link after the delay is 6ms, and promptly subframe n is the descending sub frame of back haul link, and subframe n+6 is the sub-frame of uplink of back haul link.
As shown in Figure 9, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention four may further comprise the steps:
Particularly, because base station equipment is at subframe n dispatching of relays node, via node need carry out uplink or up feedback at subframe n+6 and base station equipment, up timing relationship according to access link, for avoiding the uplink transmission conflict of access link and back haul link, via node can not be at subframe n+2 scheduling user's set.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, making via node send data to base station equipment carries out in different subframes from the data of subscriber equipment with receiving, and the sub-frame of uplink that makes back haul link is multiplexing in the uplink of back haul link and the uplink of access link, avoided the conflict of uplink, both guarantee the quality of uplink, realized making full use of of ascending resource again.
As shown in figure 10, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the invention five may further comprise the steps:
Particularly, because base station equipment is not at subframe n dispatching of relays node, via node need not carry out uplink or up feedback at subframe n+6 and base station equipment, and according to the up timing relationship of access link, via node can be at subframe n+2 scheduling user's set.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, making via node send data to base station equipment carries out in different subframes from the data of subscriber equipment with receiving, and the sub-frame of uplink that makes back haul link is multiplexing in the uplink of back haul link and the uplink of access link, avoided the conflict of uplink, both guarantee the quality of uplink, realized making full use of of ascending resource again.
Above execution mode provides a kind of methods and applications scene of avoiding uplink transmission conflict, and correspondingly, the embodiment of the invention also provides the equipment of using said method, comprises base station equipment and via node.
As shown in figure 11, the structural representation for a kind of base station equipment in the embodiment of the invention six comprises:
Above-mentioned configuration module 610 specifically is used to postpone the up timing relationship of back haul link, any one realization during this postpones in the following manner:
Transmit control message to via node by PDCCH, carry the subframe indication that postpones up timing relationship in this control messages, comprise the length of delay of up timing relationship in this subframe indication;
Up timing relationship notice via node after will postponing by the RRC signaling carries the length of delay of up timing relationship in the physical layer configuration parameter of this RRC signaling.
Transport module 620 is used for the up timing relationship according to the back haul link of configuration module 610 configurations, carries out transfer of data with via node.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, conflicting between the uplink of having avoided back haul link and the uplink of access link, both guarantee the quality of uplink, realized making full use of of ascending resource again.
As shown in figure 12, the structural representation for a kind of via node in the embodiment of the invention seven comprises:
Above-mentioned acquisition module 710, specifically be used to receive from base station equipment PDCCH carry control messages, the subframe indication of carrying the up timing relationship that postpones back haul link in this control messages comprises the length of delay of up timing relationship in this subframe indication; Or
Reception is carried the length of delay of up timing relationship from the RRC signaling of base station equipment in the physical layer configuration parameter of this RRC signaling.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, conflicting between the uplink of having avoided back haul link and the uplink of access link, both guarantee the quality of uplink, realized making full use of of ascending resource again.
As shown in figure 13, a kind of system configuration schematic diagram of avoiding uplink transmission conflict in the embodiment of the invention eight comprises:
Via node 820 is used to obtain the up timing relationship of the back haul link of base station equipment 810 configurations, and according to the up timing relationship of the back haul link that obtains, carries out transfer of data with base station equipment 810.
The embodiment of the invention is by postponing the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of back haul link greater than access link, conflicting between the uplink of having avoided back haul link and the uplink of access link, both guarantee the quality of uplink, realized making full use of of ascending resource again.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be integrated in one, and also can separate deployment, can merge into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (11)
1. a method of avoiding uplink transmission conflict is characterized in that, comprising:
The up timing relationship of base station equipment configuration back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, described back haul link is used for the transfer of data between described base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Described base station equipment is carried out transfer of data according to the up timing relationship of the back haul link of described configuration with described via node.
2. the method for claim 1, it is characterized in that, timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and the corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and the corresponding up feedback.
3. the method for claim 1 is characterized in that, the up timing relationship of described base station equipment configuration back haul link is specially:
Described base station equipment postpones the up timing relationship of described back haul link, any one realization in the described delay in the following manner:
Described base station equipment transmits control message to described via node by physical downlink control channel PDCCH, carries the subframe indication that postpones described up timing relationship in the described control messages, comprises the length of delay of described up timing relationship in the described subframe indication;
Described base station equipment is notified described via node by the up timing relationship of radio resource control RRC signaling after with described delay, carries the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling.
4. the method for claim 1 is characterized in that, the sub-frame of uplink of described back haul link is multiplexing in the uplink of described back haul link and the uplink of described access link.
5. method as claimed in claim 2 is characterized in that, the up timing relationship of described back haul link is specially greater than the up timing relationship of access link:
Timing relationship between the uplink of described back haul link scheduling and the corresponding uplink greater than the uplink of described access link dispatch with corresponding uplink between timing relationship, and/or
Timing relationship between the downlink transfer of described back haul link and the corresponding up feedback is greater than the timing relationship between the downlink transfer of described access link and the corresponding up feedback.
6. method as claimed in claim 2 is characterized in that, the timing relationship between the downlink transfer that the uplink of described back haul link scheduling and timing relationship between the corresponding uplink equal described back haul link and the corresponding up feedback.
7. a base station equipment is characterized in that, comprising:
Configuration module, be used to dispose the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, described back haul link is used for the transfer of data between base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Transport module is used for the up timing relationship according to the back haul link of described configuration module configuration, carries out transfer of data with described via node.
8. base station equipment as claimed in claim 7 is characterized in that,
Described configuration module specifically is used to postpone the up timing relationship of described back haul link, any one realization in the described delay in the following manner:
Transmit control message to described via node by physical downlink control channel PDCCH, carry the subframe indication that postpones described up timing relationship in the described control messages, comprise the length of delay of described up timing relationship in the described subframe indication;
Notify described via node by the up timing relationship of radio resource control RRC signaling after, carry the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling described delay.
9. a via node is characterized in that, comprising:
Acquisition module, be used to obtain the up timing relationship of the back haul link of base station equipment configuration, the up timing relationship of described back haul link is greater than the up timing relationship of access link, described back haul link is used for the transfer of data between described base station equipment and the via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Transport module is used for the up timing relationship of the back haul link that obtains according to described acquisition module, carries out transfer of data with described base station equipment.
10. via node as claimed in claim 9 is characterized in that,
Described acquisition module, specifically be used to receive the control messages that the PDCCH from described base station equipment carries, carry the subframe indication of the up timing relationship that postpones described back haul link in the described control messages, comprise the length of delay of described up timing relationship in the described subframe indication; Or
Reception is carried the length of delay of described up timing relationship from the radio resource control RRC signaling of described base station equipment in the physical layer configuration parameter of described RRC signaling.
11. a system that avoids uplink transmission conflict is characterized in that, comprising:
Base station equipment, be used to dispose the up timing relationship of back haul link, make the up timing relationship of the up timing relationship of described back haul link greater than access link, and according to the up timing relationship of the back haul link of described configuration, carry out transfer of data with via node, described back haul link is used for the transfer of data between described base station equipment and the described via node, and described access link is used for the transfer of data between described via node and the subscriber equipment;
Via node is used to obtain the up timing relationship of the back haul link of described base station equipment configuration, and according to the up timing relationship of the described back haul link that obtains, carries out transfer of data with described base station equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910086907.3A CN101931960B (en) | 2009-06-18 | 2009-06-18 | Method for avoid uplink transmission conflict, system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910086907.3A CN101931960B (en) | 2009-06-18 | 2009-06-18 | Method for avoid uplink transmission conflict, system and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101931960A true CN101931960A (en) | 2010-12-29 |
| CN101931960B CN101931960B (en) | 2014-02-05 |
Family
ID=43370814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910086907.3A Active CN101931960B (en) | 2009-06-18 | 2009-06-18 | Method for avoid uplink transmission conflict, system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101931960B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904695A (en) * | 2011-07-28 | 2013-01-30 | 国民技术股份有限公司 | Method and system for radio frequency link data transmission |
| CN103796175A (en) * | 2012-10-31 | 2014-05-14 | 中兴通讯股份有限公司 | Method for sending cluster paging in LTE system and corresponding device, and method for receiving cluster paging in LTE system and corresponding device |
| WO2014121442A1 (en) * | 2013-02-05 | 2014-08-14 | 华为技术有限公司 | Method for allocating communication resources, base station and user equipment |
| CN108111290A (en) * | 2012-01-20 | 2018-06-01 | 北京三星通信技术研究有限公司 | The transmission method and equipment of a kind of PUSCH |
| CN108513732A (en) * | 2018-01-04 | 2018-09-07 | 北京小米移动软件有限公司 | Data transmission method, device and user equipment |
| WO2019028779A1 (en) * | 2017-08-10 | 2019-02-14 | 上海诺基亚贝尔股份有限公司 | Method and device for resource allocation of relay communication, and computer readable medium |
| CN110167174A (en) * | 2018-02-14 | 2019-08-23 | 华为技术有限公司 | A kind of relay transmission method and device |
| CN110351011A (en) * | 2018-04-04 | 2019-10-18 | 华为技术有限公司 | Resource allocation methods, relevant apparatus and system |
| CN112449416A (en) * | 2019-08-30 | 2021-03-05 | 成都华为技术有限公司 | Data transmission method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119153A (en) * | 2006-08-03 | 2008-02-06 | 中兴通讯股份有限公司 | Method for selecting wireless digital relay system and transmission time spacing |
| CN101262691A (en) * | 2007-03-09 | 2008-09-10 | 大唐移动通信设备有限公司 | Method and device for preventing relay cellular system from uplink and downlink interference |
-
2009
- 2009-06-18 CN CN200910086907.3A patent/CN101931960B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101119153A (en) * | 2006-08-03 | 2008-02-06 | 中兴通讯股份有限公司 | Method for selecting wireless digital relay system and transmission time spacing |
| CN101262691A (en) * | 2007-03-09 | 2008-09-10 | 大唐移动通信设备有限公司 | Method and device for preventing relay cellular system from uplink and downlink interference |
Non-Patent Citations (1)
| Title |
|---|
| RESEARCH IN MOTION, UK LIMITED: "《3GPP TSG RAN WG2 Meeting #66 R2-093124》", 8 May 2009 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904695B (en) * | 2011-07-28 | 2016-03-30 | 国民技术股份有限公司 | A kind of transmission method of radio frequency link data and system |
| CN102904695A (en) * | 2011-07-28 | 2013-01-30 | 国民技术股份有限公司 | Method and system for radio frequency link data transmission |
| CN108111290A (en) * | 2012-01-20 | 2018-06-01 | 北京三星通信技术研究有限公司 | The transmission method and equipment of a kind of PUSCH |
| CN108111290B (en) * | 2012-01-20 | 2021-02-02 | 北京三星通信技术研究有限公司 | PUSCH transmission method and equipment |
| CN103796175B (en) * | 2012-10-31 | 2019-09-24 | 中兴通讯股份有限公司 | The method and related device of clustered paging are sent, received in a kind of LTE system |
| CN103796175A (en) * | 2012-10-31 | 2014-05-14 | 中兴通讯股份有限公司 | Method for sending cluster paging in LTE system and corresponding device, and method for receiving cluster paging in LTE system and corresponding device |
| US10117221B2 (en) | 2012-10-31 | 2018-10-30 | Zte Corporation | Method and corresponding apparatus for sending and receiving trunking paging in LTE system |
| WO2014121442A1 (en) * | 2013-02-05 | 2014-08-14 | 华为技术有限公司 | Method for allocating communication resources, base station and user equipment |
| CN104272831A (en) * | 2013-02-05 | 2015-01-07 | 华为技术有限公司 | Method for allocating communication resources, base station and user equipment |
| CN104272831B (en) * | 2013-02-05 | 2019-05-10 | 华为技术有限公司 | Distribution method, base station and the user equipment of the communication resource |
| WO2019028779A1 (en) * | 2017-08-10 | 2019-02-14 | 上海诺基亚贝尔股份有限公司 | Method and device for resource allocation of relay communication, and computer readable medium |
| CN108513732A (en) * | 2018-01-04 | 2018-09-07 | 北京小米移动软件有限公司 | Data transmission method, device and user equipment |
| CN108513732B (en) * | 2018-01-04 | 2022-07-01 | 北京小米移动软件有限公司 | Data transmission method and device and user equipment |
| US11483819B2 (en) | 2018-01-04 | 2022-10-25 | Beijing Xiaomi Mobile Software Co., Ltd. | Data transmission method and apparatus and user equipment |
| CN110167174A (en) * | 2018-02-14 | 2019-08-23 | 华为技术有限公司 | A kind of relay transmission method and device |
| CN110351011A (en) * | 2018-04-04 | 2019-10-18 | 华为技术有限公司 | Resource allocation methods, relevant apparatus and system |
| CN110351011B (en) * | 2018-04-04 | 2022-02-18 | 华为技术有限公司 | Resource allocation method, related device and system |
| CN112449416A (en) * | 2019-08-30 | 2021-03-05 | 成都华为技术有限公司 | Data transmission method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101931960B (en) | 2014-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102113398B (en) | Resource allocation method for backhaul link and access link in wireless communication system including relay | |
| CN101931960B (en) | Method for avoid uplink transmission conflict, system and device | |
| US9521669B2 (en) | HARQ for dynamic change of the TDD UL/DL configuration in LTE TDD systems | |
| CN110140396B (en) | Wireless communication device, wireless communication method, and storage medium | |
| EP2361459B1 (en) | Method for relaying data in wireless communication system based on time division duplex | |
| KR101412051B1 (en) | Method, device and system for backhaul link communication in tdd system | |
| CN105122917B (en) | Dynamic TDD configuration user equipment and method | |
| US8989079B2 (en) | Apparatus for transmitting and receiving uplink backhaul signal in wireless communication system and method thereof | |
| CN101925118B (en) | Method, device and system for avoiding conflicts of interface transmission | |
| CN109600850B (en) | Method and apparatus for enhancing coverage | |
| WO2013020508A1 (en) | Method, system and device for transmitting data in time division duplex (tdd) wireless frame | |
| CN102355731A (en) | Base station, terminal, system and methods for transmitting data in time division duplex (TDD) system | |
| CN103096494B (en) | Data transmission method based on across carrier scheduling, user device and station | |
| CN101908955A (en) | Downlink information transmission method and device of return link | |
| EP3386136B1 (en) | Downlink transmission method, base station, and terminal | |
| CN101888661B (en) | Wireless communication method, system and device | |
| CN101882985A (en) | Indicating method for sending hybrid automatic repeat request (HARQ) and base station thereof | |
| KR20180048947A (en) | Flexible time-division duplexing sub-frame structure with latency reduction | |
| CN102064878B (en) | Method and device for indicating uplink data transmission | |
| CN105207757A (en) | Carrier aggregation method and apparatus of communication system | |
| CN101309522B (en) | Uplink reply message feedback method and mobile terminal | |
| US11690132B2 (en) | Medium access control-control element (MAC-CE) communication | |
| CN101902820B (en) | Method and system for transmitting uplink data and device | |
| CN102571189B (en) | The data processing method that backhaul link subframe configuration switches and device | |
| CN101790194A (en) | Mixed automatic retransmission request method, device and system for relay uplink |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110506 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210601 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |