CN101931960B - Method for avoid uplink transmission conflict, system and device - Google Patents
Method for avoid uplink transmission conflict, system and device Download PDFInfo
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- CN101931960B CN101931960B CN200910086907.3A CN200910086907A CN101931960B CN 101931960 B CN101931960 B CN 101931960B CN 200910086907 A CN200910086907 A CN 200910086907A CN 101931960 B CN101931960 B CN 101931960B
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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 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 rear 3G standard that great popular demand, LTE (Long Term Evolution, long evolving system) standard has approached, 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 mobile communication system.As shown in Figure 1, for introducing the wireless portion schematic diagram of the mobile communication system after RN, mainly comprise eNB (enhanced Node B, enhancement mode Node B), RN and UE (User Equipment, subscriber equipment) three parts, the wireless link of this wireless portion comprises following three: the direct projection link between eNB and macro UE (direct link), access link (access link) between back haul link between eNB and RN (backhaul link) and RN and relay UE, wherein, Macro UE accepts the service that eNB directly provides, Relay UE accepts the service that RN provides.
The signal interference-limited of considering radio communication, direct projection link, back haul link and access link need to be used the Radio Resource of quadrature.Because the mode of operation of the transceiver of RN is 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 in same frequency, back haul link and access link are unsuitable for coexisting in same frequency resource.
In order to solve the coexistence problems between back haul link and access link, the communication network that makes to introduce RN can compatible Rel-8UE, and keep Relay UE and Macro UE to there is identical frame structure, system is introduced MBSFN (Multicast Broadcast Single Frequency Network, multicast single frequency network) subframe.The frame structure of RN is configured to after MBSFN subframe, there are 2 or 3 OFDM (Orthogonal Frequency Division Multiplexing, OFDM) the ，Gai region, descending control signaling region of symbol sends descending control signaling for RN to Relay UE.When RN receives from the back haul link data of eNB, RN does not send data to Relay UE, by MBSFN subframe, at descending access link, creates transmission gap (gaps) in the transmission time, as shown in Figure 2.In transmission gap, UE (comprising Rel-8UE) can not expect any transfer of data from RN, eNB can utilize subframe in this transmission gap to realize and RN between descending back haul link transmission, even if the subframe of transmission gap is not for transmitting the downlink data of back haul link, can not be for the downlink transfer of access link, thus avoid back haul link to conflict with the downlink transfer between access link.
Yet, at application HARQ (Hybrid Auto Repeat request, mixed automatic retransfer request) in the communication system of mechanism, when Relay UE sends upstream data to RN according to HARQ timing relationship on access link, if RN sends ACK (the Acknowledge Character of upstream data or downlink data transmission on back haul link to base station equipment, acknowledge character)/NACK (NegativeAcknowledgment, the notice of makeing mistakes) feedback, between back haul link and access link, produce transmission collision, RN is due to self semiduplex characteristic, cannot receive the upstream data from Relay UE.
With FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system is example, when subframe n is configured to MBSFN subframe, RN can be in the control signal region of subframe n sends the ACK feedback of uplink and for UL grant (the Uplink grant of access link to Relay UE, uplink scheduling license), can also receive downlink data and the control information that base station equipment sends in the transfer of data region 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 HARQ timing relationship, R-UE need to send upstream data to RN by subframe n+4 according to UL grant on access link, and meanwhile, RN also may send ACK feedback or the upstream data of downlink data transmission on back haul link to base station equipment.Because RN is semiduplex, transceiving data simultaneously, therefore, when RN sends upstream data or control information to base station equipment, RN can not receive the upstream data of RelayUE, i.e. up initial transmission on access link and the uplink transmission conflict of back haul link, as shown in Figure 3.Because the ascending HARQ RTT on 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 current 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 in the situation that do not receive the upstream data from RelayUE, according to the HARQ timing relationship on access link, to Relay UE, send NACK, make Relay UE retransmit upstream data according to HARQ timing relationship.
Inventor is in realizing process of the present invention, and at least there are the following problems to find prior art:
In prior art, the half-duplex time-division mode of operation of RN can cause the uplink transmission conflict between back haul link and access link, because RN cannot receive the upstream data from Relay UE by access link, Relay UE need to upload upstream data many times to RN according to HARQ timing relationship, cause the unnecessary power consumption of Relay UE, and caused the co-channel interference of access link to back haul link.
Summary of the invention
The embodiment of the present 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 present 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 described back haul link be greater than the up timing relationship of access link, described back haul link is for the transfer of data between described base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment;
Described base station equipment, according to the up timing relationship of the back haul link of described configuration, is carried out transfer of data 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 corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and corresponding uplink 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 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 described control message, the length of delay that comprises described up timing relationship in described subframe indication;
Described base station equipment is notified described via node by radio resource control RRC signaling by the up timing relationship after 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 greater than the up timing relationship of access link, is specially:
The uplink that the uplink scheduling of described back haul link and timing relationship between corresponding uplink are greater than described access link dispatch with corresponding uplink between timing relationship, and/or
Timing relationship between the downlink transfer that the downlink transfer of described back haul link and timing relationship between corresponding uplink feedback are greater than described access link and corresponding uplink feedback.
Preferably, the timing relationship between the downlink transfer that the uplink of described back haul link scheduling and timing relationship between corresponding uplink equal described back haul link and corresponding uplink feedback.
The embodiment of the present invention also provides a kind of base station equipment, comprising:
Configuration module, for configuring the up timing relationship of back haul link, make the up timing relationship of described back haul link be greater than the up timing relationship of access link, described back haul link is for the transfer of data between base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment;
Transport module, for according to the up timing relationship of the back haul link of described configuration module configuration, carries out transfer of data with described via node.
Preferably, described configuration module, specifically for postponing the up timing relationship of described back haul link, any one realization in described delay in the following manner:
By physical downlink control channel PDCCH, to described via node, transmit control message, in described control message, carry the subframe indication that postpones described up timing relationship, the length of delay that comprises described up timing relationship in described subframe indication;
By radio resource control RRC signaling, by the up timing relationship after described delay, notify described via node, in the physical layer configuration parameter of described RRC signaling, carry the length of delay of described up timing relationship.
The embodiment of the present invention also provides a kind of via node, comprising:
Acquisition module, for obtaining 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 for the transfer of data between described base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment;
Transport module, the up timing relationship for 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, the control message carrying specifically for the PDCCH receiving from described base station equipment, the subframe indication of carrying the up timing relationship that postpones described back haul link in described control message, the length of delay that comprises described up timing relationship in described subframe indication; Or
Reception, from the radio resource control RRC signaling of described base station equipment, is carried the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling.
The embodiment of the present invention also provides a kind of system of avoiding uplink transmission conflict, comprising:
Base station equipment, for configuring the up timing relationship of back haul link, make the up timing relationship of described back haul link be greater than the up timing relationship of 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 for the transfer of data between described base station equipment and described via node, and described access link is for the transfer of data between described via node and subscriber equipment;
Via node, for obtaining 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 obtaining, carries out transfer of data with described base station equipment.
The embodiment of the present invention comprises following advantage, by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, making via node send data and receive to base station equipment carries out in different subframes from the data of subscriber equipment, avoided the conflict of uplink, both guarantee the quality of uplink, realized again making full use of of ascending resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in the embodiment of the present invention or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is for introducing the wireless portion schematic diagram of the mobile communication system after RN;
Fig. 2 is the transmission gap schematic diagram of descending access link in the transmission time;
Fig. 3 is up initial transmission on access link and the uplink transmission conflict schematic diagram of back haul link;
Fig. 4 is that uplink synchronous on access link retransmits the uplink transmission conflict schematic diagram with back haul link;
Fig. 5 is the HARQ process schematic diagram in FDD system;
Fig. 6 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention one;
Fig. 7 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention two;
Fig. 8 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention three;
Fig. 9 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention four;
Figure 10 is a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention five;
Figure 11 is the structural representation of a kind of via node in the embodiment of the present invention six;
Figure 12 is the structural representation of a kind of via node in the embodiment of the present invention seven;
Figure 13 is a kind of system configuration schematic diagram of avoiding uplink transmission conflict in the embodiment of the present invention eight.
Embodiment
The technical scheme that the embodiment of the present invention provides is, the up timing relationship of base station equipment configuration back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, and according to the up timing relationship of the back haul link of configuration, carry out transfer of data with via node.
The embodiment of the present 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 the reliability of transfer of data.
In FDD system, by PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) the descending scheduling order sending occurs in same subframe with the downlink transfer of being undertaken by PDSCH (Physical Downlink SharedChannel, Physical Downlink Shared Channel); The uplink scheduling order sending by PDCCH is 4ms with the timing relationship between the uplink of being undertaken by PUSCH (Physical uplink shared channel, Physical Uplink Shared Channel); Downlink transfer is 4ms with the timing relationship between corresponding up direction feedback; Uplink is 4ms with the timing relationship between the down direction feedback of being undertaken by PHICH (Physical hybridautomatic repeat request indicator channel, physical hybrid automatic repeat request indicator channel).Wherein, PDCCH is down channel, for allocation of downlink or uplink transmission resource; PDSCH is used for sending downlink data packet; PUSCH is used for sending upstream data bag; PHICH is down channel, for transmitting the ACK/NACK feedback information that PUSCH is corresponding.
As shown in Figure 5, be the HARQ process schematic diagram in 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; Base station equipment receives after ACK, confirms 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 system, although descending scheduling order and downlink transfer occur in same subframe, but because system is supported multiple UL (Uplink, up link)/DL (Downlink, down link) configuration, timing relationship between PUSCH corresponding to the descending sub frame of transmission UL grant and UL grant is different under different UL/DL configurations, simultaneously, timing relationship between the sub-frame of uplink that the ACK feedback that the descending sub frame that downlink data transmission is used and this downlink data are corresponding is used is also different under different UL/DL configurations.
As shown in table 1, be the UL/DL allocation list in TDD system, this table is for being illustrated in the function of the different lower different subframes of UL/DL configuration.Wherein, n is subframe numbering, and D represents descending sub frame, and U represents descending sub frame, and S represents special subframe.
UL/DL allocation list in table 1TDD system
As shown in table 2, for the timing relationship table between UL grant and the PUSCH of correspondence, this table is for representing to transmit the relation between the subframe numbering of the PUSCH that the descending sub frame numbering of UL grant and UL grant are corresponding, wherein, n is the descending sub frame numbering of transmission UL grant, the subframe of the PUSCH that UL grant is corresponding is numbered n+k1, and the content in table 2 is the value of k1.
Timing relationship table between the PUSCH of table 2UL grant and correspondence
As shown in table 3, for the timing relationship table of downlink data transmission with corresponding ACK feedback, this table feeds back the relation between the sub-frame of uplink numbering of using for representing descending sub frame numbering and the ACK corresponding to this downlink data of downlink data transmission use, wherein, n is the sub-frame of uplink numbering at ACK feedback place, ACK feeds back corresponding downlink data transmission and occurs in the descending sub frame that is numbered n-k2, and the content in 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, for the timing relationship table of transmitting uplink data with corresponding ACK feedback, this table feeds back the relation between the descending sub frame numbering of using for representing sub-frame of uplink numbering and the ACK corresponding to this upstream data of transmitting uplink data use, wherein, n is the descending sub frame numbering at ACK feedback place, ACK feeds back corresponding transmitting uplink data and occurs in the sub-frame of uplink that is numbered n-k3, and the content in 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 present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 6, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention, comprises the following steps:
Step 101, the up timing relationship of base station equipment configuration back haul link, makes the up timing relationship of back haul link be greater than the up timing relationship of access link.
Wherein, back haul link is for the transfer of data between base station equipment and via node, and access link is for the transfer of data between via node and subscriber equipment.Timing relationship between the uplink scheduling that the up timing relationship of back haul link comprises back haul link and corresponding uplink, and/or the timing relationship between the downlink transfer of back haul link and corresponding uplink feedback.The uplink that the uplink scheduling of back haul link and timing relationship between corresponding uplink are greater than access link dispatch with corresponding uplink between timing relationship, timing relationship between the downlink transfer that the downlink transfer of back haul link and timing relationship between corresponding uplink feedback are greater than access link and corresponding uplink feedback, the timing relationship between the downlink transfer that the uplink scheduling of back haul link and timing relationship between corresponding uplink equal back haul link and corresponding uplink feedback.
For FDD system, timing relationship between the uplink scheduling of existing back haul link and corresponding uplink, and the downlink transfer of back haul link is 4ms (millisecond with the timing relationship between corresponding uplink feedback, millisecond), in order to postpone the up timing relationship of the back haul link of FDD system, can the uplink scheduling of back haul link be configured to (4+k1) ms with the timing relationship between corresponding uplink by the PDCCH order in FDD system, the downlink transfer of back haul link is configured to (4+k2) ms with the timing relationship between corresponding uplink feedback, wherein, k1 is integer and k1 > 0, k2 is integer and k2 > 0, k1 and k2 can equate also can not wait.
For TDD system, timing relationship between the uplink scheduling of existing back haul link and corresponding uplink, and the timing relationship between the downlink transfer of back haul link and corresponding uplink 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, in order to postpone the up timing relationship of the back haul link of TDD system, can the uplink scheduling of back haul link be configured to (k+k1) ms with the timing relationship between corresponding uplink by the PDCCH order in TDD system, the downlink transfer of back haul link is configured to (k+k2) ms with the timing relationship between corresponding uplink feedback, wherein, k is existing up timing relationship, k1 is integer and k1 > 0, k2 is integer and k2 > 0, k1 and k2 can equate also can not wait.
The up timing relationship of base station equipment configuration back haul link, is specially: base station equipment postpones the up timing relationship of back haul link, any one realization in this delay 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 message, the length of delay that comprises up timing relationship in this subframe indication.
Particularly, at the UL of PDCCH grant (Uplink grant, uplink scheduling license) in, carry the subframe indication of PUCCH, at DL Assignment (Downlink assignment, downlink allocation) in, carry the subframe indication of downlink data being carried out to uplink feedback, subframe indication can be the length of delay of up timing relationship, i.e. above-mentioned k value.
(2) base station equipment, by RRC signaling by the up timing relationship notice via node after postponing, is carried 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 corresponding uplink, and the timing relationship between the downlink transfer of back haul link and corresponding uplink feedback.
Step 102, base station equipment, according to the up timing relationship of the back haul link of configuration, is carried out transfer of data with via node.
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.
Via node receives after the 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, to base station equipment, sends data and receives the data from subscriber equipment.
For FDD system, the up timing relationship of the access link between existing via node and 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, at least will be early than a subframe, for semiduplex RN, realize the uplink of back haul link and the uplink timesharing of access link is carried out, avoided the conflict of uplink.
For TDD system, the up timing relationship of the access link between existing via node and subscriber equipment is determined according to the associated description in 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, realize the uplink of back haul link and the uplink timesharing of access link is carried out, avoided the conflict of uplink.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, making via node send data and receive to base station equipment carries out in different subframes from the data of subscriber equipment, avoided the conflict of uplink, both guarantee the quality of uplink, realized again making full use of of ascending resource.
Below by concrete application scenarios, method in the embodiment of the present invention one is carried out in detail, concrete description, wherein, the uplink scheduling of back haul link is kb1 with the timing relationship between corresponding uplink, the downlink transfer of back haul link is kb2 with the timing relationship between corresponding uplink feedback, the uplink scheduling of access link is ka1 with the timing relationship between corresponding uplink, the downlink transfer of back haul link is ka2 with the timing relationship between corresponding uplink feedback, kb1 is greater than ka1 and kb2 is greater than ka2, kb1 and kb2 can equate also can not wait, 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 present invention two, comprises the following steps:
It should be noted that, because ka1 and ka2 can equate also can not wait, the execution sequence between this step and step 204 does not have precedence relationship.
It should be noted that, because kb1 and kb2 can equate also can not wait, the execution sequence between this step and step 206 does not have precedence relationship.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, avoided conflicting between the uplink of back haul link and the uplink of access link, both guarantee the quality of uplink, realized again making full use of of ascending resource.
As shown in Figure 8, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention three, comprises the following steps:
Step 301, at subframe n, via node, in the scheduling and downlink transfer that receive from base station equipment, is dispatched corresponding subscriber equipment.
Step 302, at subframe n+kb2-ka1, whether relay node judges needs to send uplink feedback to base station equipment on subframe n+kb2, if need to send uplink feedback to base station equipment, performs step 307; If do not need to send uplink feedback to base station equipment, perform 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 uplink feedback according to the downlink transfer of via node.
It should be noted that, because ka1 and ka2 can equate also can not wait, the execution sequence between this step and 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 uplink feedback.
It should be noted that, because kb1 and kb2 can equate also can not wait, the execution sequence between this step and step 306 does not have precedence relationship.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, avoided conflicting between the uplink of back haul link and the uplink of access link, both guarantee the quality of uplink, realized again making full use of of ascending resource.
Following examples be take FDD system as example, and the method for exempting from uplink transmission conflict in above-described embodiment 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 delay is 6ms, the descending sub frame that subframe n is 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 present invention four, comprises the following steps:
Particularly, because base station equipment is at subframe n dispatching of relays node, via node need to carry out uplink or uplink feedback at subframe n+6 and base station equipment, according to the up timing relationship of 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 present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, making via node send data and receive to base station equipment carries out in different subframes from the data of subscriber equipment, 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 again making full use of of ascending resource.
As shown in figure 10, a kind of method flow diagram of avoiding uplink transmission conflict in the embodiment of the present invention five, comprises the following steps:
Particularly, because base station equipment is not at subframe n dispatching of relays node, via node need to not carry out uplink or uplink 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 present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, making via node send data and receive to base station equipment carries out in different subframes from the data of subscriber equipment, 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 again making full use of of ascending resource.
Above execution mode provides a kind of methods and applications scene of avoiding uplink transmission conflict, and correspondingly, the embodiment of the present invention also provides the equipment of application 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 present invention six, comprising:
Above-mentioned configuration module 610, specifically for postponing the up timing relationship of back haul link, any one realization in this delay in the following manner:
By PDCCH, to via node, transmit control message, in this control message, carry the subframe indication that postpones up timing relationship, the length of delay that comprises up timing relationship in this subframe indication;
By RRC signaling, by the up timing relationship notice via node after postponing, in the physical layer configuration parameter of this RRC signaling, carry the length of delay of up timing relationship.
Transport module 620, for according to the up timing relationship of the back haul link of configuration module 610 configurations, carries out transfer of data with via node.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, avoided conflicting between the uplink of back haul link and the uplink of access link, both guarantee the quality of uplink, realized again making full use of of ascending resource.
As shown in figure 12, the structural representation for a kind of via node in the embodiment of the present invention seven, comprising:
Above-mentioned acquisition module 710, specifically for receive from base station equipment PDCCH, carry control message, the subframe indication of carrying the up timing relationship that postpones back haul link in this control message, the length of delay that comprises up timing relationship in this subframe indication; Or
Reception, from the RRC signaling of base station equipment, is carried the length of delay of up timing relationship in the physical layer configuration parameter of this RRC signaling.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, avoided conflicting between the uplink of back haul link and the uplink of access link, both guarantee the quality of uplink, realized again making full use of of ascending resource.
As shown in figure 13, a kind of system configuration schematic diagram of avoiding uplink transmission conflict in the embodiment of the present invention eight, comprising:
Via node 820, for obtaining 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 obtaining, carries out transfer of data with base station equipment 810.
The embodiment of the present invention is by postponing the up timing relationship of back haul link, make the up timing relationship of back haul link be greater than the up timing relationship of access link, avoided conflicting between the uplink of back haul link and the uplink of access link, both guarantee the quality of uplink, realized again making full use of of ascending resource.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, 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 a storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be integrated in one, and also can separatedly dispose, and can merge into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (10)
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 described back haul link be greater than the up timing relationship of access link, described back haul link is for the transfer of data between described base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment; Wherein, the timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and corresponding uplink feedback;
Described base station equipment, according to the up timing relationship of the back haul link of described configuration, is carried out transfer of data with described via node.
2. 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 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 described control message, the length of delay that comprises described up timing relationship in described subframe indication;
Described base station equipment is notified described via node by radio resource control RRC signaling by the up timing relationship after described delay, carries the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling.
3. 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.
4. the method for claim 1, is characterized in that, the up timing relationship of described back haul link is greater than the up timing relationship of access link, is specially:
The uplink that the uplink scheduling of described back haul link and timing relationship between corresponding uplink are greater than described access link dispatch with corresponding uplink between timing relationship, and/or
Timing relationship between the downlink transfer that the downlink transfer of described back haul link and timing relationship between corresponding uplink feedback are greater than described access link and corresponding uplink feedback.
5. the method for claim 1, is characterized in that, the timing relationship between the downlink transfer that the uplink of described back haul link scheduling and timing relationship between corresponding uplink equal described back haul link and corresponding uplink feedback.
6. a base station equipment, is characterized in that, comprising:
Configuration module, for configuring the up timing relationship of back haul link, make the up timing relationship of described back haul link be greater than the up timing relationship of access link, described back haul link is for the transfer of data between base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment; Wherein, the timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and corresponding uplink feedback;
Transport module, for according to the up timing relationship of the back haul link of described configuration module configuration, carries out transfer of data with described via node.
7. base station equipment as claimed in claim 6, is characterized in that,
Described configuration module, specifically for postponing the up timing relationship of described back haul link, any one realization in described delay in the following manner:
By physical downlink control channel PDCCH, to described via node, transmit control message, in described control message, carry the subframe indication that postpones described up timing relationship, the length of delay that comprises described up timing relationship in described subframe indication;
By radio resource control RRC signaling, by the up timing relationship after described delay, notify described via node, in the physical layer configuration parameter of described RRC signaling, carry the length of delay of described up timing relationship.
8. a via node, is characterized in that, comprising:
Acquisition module, for obtaining 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 for the transfer of data between described base station equipment and via node, and described access link is for the transfer of data between described via node and subscriber equipment; Wherein, the timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and corresponding uplink feedback;
Transport module, the up timing relationship for the back haul link that obtains according to described acquisition module, carries out transfer of data with described base station equipment.
9. via node as claimed in claim 8, is characterized in that,
Described acquisition module, the control message carrying specifically for the PDCCH receiving from described base station equipment, in described control message, carry the subframe indication of the up timing relationship that postpones described back haul link, the length of delay that comprises described up timing relationship in described subframe indication; Or
Reception, from the radio resource control RRC signaling of described base station equipment, is carried the length of delay of described up timing relationship in the physical layer configuration parameter of described RRC signaling.
10. a system of avoiding uplink transmission conflict, is characterized in that, comprising:
Base station equipment, for configuring the up timing relationship of back haul link, make the up timing relationship of described back haul link be greater than the up timing relationship of 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 for the transfer of data between described base station equipment and described via node, and described access link is for the transfer of data between described via node and subscriber equipment; Wherein, the timing relationship between the uplink scheduling that the up timing relationship of described back haul link comprises described back haul link and corresponding uplink, and/or the timing relationship between the downlink transfer of described back haul link and corresponding uplink feedback;
Via node, for obtaining 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 obtaining, carries out transfer of data with described base station equipment.
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Families Citing this family (9)
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| 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 |
| CN103220104B (en) * | 2012-01-20 | 2018-02-09 | 北京三星通信技术研究有限公司 | A kind of PUSCH transmission method |
| 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 |
| 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 |
| CN110999127B (en) * | 2017-08-10 | 2022-06-21 | 上海诺基亚贝尔股份有限公司 | Method, apparatus, and computer readable medium for resource allocation for relay communication |
| WO2019134098A1 (en) | 2018-01-04 | 2019-07-11 | 北京小米移动软件有限公司 | Data transmission method and apparatus and user device |
| CN110167174B (en) * | 2018-02-14 | 2023-07-28 | 华为技术有限公司 | Relay transmission method and device |
| 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 |
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.UL HARQ operation over the Un interface.《3GPP TSG RAN WG2 Meeting #66 R2-093124》.2009, * |
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