CN101925189A - Method, device and system for avoiding transmission conflict of interfaces - Google Patents
Method, device and system for avoiding transmission conflict of interfaces Download PDFInfo
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- CN101925189A CN101925189A CN2009101583482A CN200910158348A CN101925189A CN 101925189 A CN101925189 A CN 101925189A CN 2009101583482 A CN2009101583482 A CN 2009101583482A CN 200910158348 A CN200910158348 A CN 200910158348A CN 101925189 A CN101925189 A CN 101925189A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention discloses a method, a device and a system for avoiding the transmission conflict of interfaces. The method comprises the following steps of: acquiring the subframe configuration information of a relay node at a Un interface from the relay node by relay UE (User Equipment); judging whether a transmission conflict can be generated between the Un interface and a Uu interface at an uplink transmission clock by the relay UE according to the subframe configuration information, wherein the Uu interface is used for the data transmission between the UE and the relay node; and updating the uplink transmission time by the relay UE according to a timing relation on an access link corresponding to the Uu interface if the transmission conflict can be generated between the Un interface and the Uu interface at the uplink transmission clock. The embodiment of the invention decreases the power consumption of the relay UE and lessens the interference of the access link on an adjacent district and a relay link.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of methods, devices and systems of avoiding conflicts of interface transmission.
Background technology
At B3G (Beyond 3rd Generation in mobile communication system, back 3 g mobile communication system) and LTE-A (Long Term Evolution Advanced, advanced long-term evolution system) etc. in the mobile communication system, system will provide higher peak data rate and cell throughout, also need bigger bandwidth support simultaneously.Because the unassigned bandwidth below the 2GHz seldom, therefore can only on higher frequency range, seek bandwidth, for example the above frequency range of 3GHz.Yet band signal transmission is high more, and radio wave propagation is decayed soon more, and signal transmission distance is short more, therefore, for guaranteeing the continuous covering of signal, need dispose more base station in the overlay area, has increased the cost of arranging net.
Be the cost problem of arranging net in the resolution system, each manufacturer and standardization body are incorporated into RN (RelayNode, via node) in the cellular system, base station equipment by RN to the user device transmissions signal, to increase the coverage rate of transmission signals.As shown in Figure 1, be the communications network deployment schematic diagram behind the introducing RN, base station equipment can be passed through RN1, RN2 and RN3 respectively to UE (User Equipment, subscriber equipment) transmission signals, wherein, can the Extended Cell edges cover by RN1, can increase the capacity of overlay area by RN2, can solve the communication of shadow region by RN3.
In the communication network after introducing RN, the Radio Link relevant with RN comprises access link (accesslink) and repeated link (backhaul link), wherein, access link is the Radio Link between UE and the RN, repeated link is the Radio Link between base station equipment and the RN, data-interface between UE and the RN is the Uu interface, and the data-interface between base station equipment and the RN is the Un interface.Simultaneously, the UE in the communication network behind the introducing RN is divided into Macro UE and Relay UE, and wherein, Macro UE accepts the service that base station equipment directly provides, and Relay UE accepts the service that RN provides.
Because the working mechanism of RN is in half-duplex and the band (In-band), it is the operation that RN can not receive simultaneously and send on same frequency, and between base station equipment and the RN, between base station equipment and the Macro UE, and RN all uses identical frequency resource with the transfer of data between the Relay UE.Therefore, in the communication network after introducing RN, frame structure can be divided into descending access zone, down mixing regional, up access zone and up Mixed Zone, wherein, descending access zone is that base station equipment and RN are respectively to the zone of Macro UE and Relay UE transmission data, the down mixing zone is base station equipment sends data to RN and Macro UE zone, up access zone be Macro UE and Relay UE respectively to the zone of base station equipment and RN transmission data, up Mixed Zone is Macro UE and the RN zone to base station equipment transmission data.
In order to make the communication network of introducing RN can compatible Rel-8UE, promptly keep Relay UE and MacroUE to have identical frame structure, system introduces MBSFN (Multicast Broadcast Single FrequencyNetwork, multicast single frequency network) subframe is to realize the transfer of data of repeated link.As shown in Figure 2, be the structural representation of MBSFN subframe.After the frame structure of RN is configured to the MBSFN subframe, there are 2 or 3 OFDM (Orthogonal Frequency DivisionMultiplexing in the frame structure of RN, OFDM) the descending control signaling zone of symbol, this zone are used for RN and send descending control signaling to Relay UE.In up Mixed Zone, when RN sent data to base station equipment, Relay UE did not transmit any upward signal to RN; In the down mixing zone, when RN received from the repeated link data of base station equipment, RN did not send data to Relay UE, and base station equipment is transferred to the repeated link data of RN and the data area in the control signal multiplex MBSFN subframe.
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 repeated link, acknowledge character)/NACK (NegativeAcknowledgment, the notice of makeing mistakes) feedback, then produce transmission collision between repeated 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 repeated link, DL assignment (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 repeated 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 Relay UE, i.e. the up initial transmission on the access link and the uplink transmission conflict of repeated 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 repeated link, as shown in Figure 4.
According to present LTE (Long Term Evolution, long evolving system) 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 Relay UE, 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 introducing of MBSFN subframe can cause Un interface and Uu conflicts of interface transmission, because RN can't receive upstream data from Relay UE by the Uu interface, 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 repeated link.
Summary of the invention
The embodiment of the invention provides a kind of methods, devices and systems of avoiding conflicts of interface transmission, has reduced the power consumption of trunk subscriber equipment and the interference of access link on adjacent cells and repeated link.
The embodiment of the invention has proposed a kind of method of avoiding conflicts of interface transmission, may further comprise the steps:
Trunk subscriber equipment obtains the subframe configuration information of described via node at the Un interface from via node, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Described trunk subscriber equipment judges between described Un interface of the uplink moment and Uu interface whether can produce transmission collision according to described subframe configuration information, and described Uu interface is used for the transfer of data between described subscriber equipment and the described via node;
If can produce transmission collision between described described Un interface of the uplink moment and described Uu interface, then described trunk subscriber equipment upgrades the described uplink time according to the timing relationship on the access link of described Uu interface correspondence.
Preferably, described trunk subscriber equipment upgrades after the uplink time according to the timing relationship on the access link of Uu interface correspondence, also comprises:
Whether described trunk subscriber equipment is judged between described Un interface of the moment of the uplink after the described renewal and described Uu interface can produce transmission collision.
Preferably, described trunk subscriber equipment also comprises after whether can producing transmission collision according to the subframe configuration information judgement between uplink moment Un interface and Uu interface:
If can not produce transmission collision between described described Un interface of the uplink moment and described Uu interface, then described trunk subscriber equipment sends upstream data to described via node constantly in described uplink.
Preferably, described trunk subscriber equipment upgraded before the uplink time according to the timing relationship on the access link of Uu interface correspondence, also comprised:
Described trunk subscriber equipment increases default value with the number of transmissions statistical value;
Described trunk subscriber equipment determines that described the number of transmissions statistical value is not more than default maximum transmission times.
Preferably, described subframe configuration information comprises the cycle of the radio frames group of the position of multicast single frequency network MBSFN subframe in the radio frames group and configuration MBSFN subframe, and described MBSFN subframe is used to realize the transfer of data of described Un interface.
The embodiment of the invention has also proposed a kind of trunk subscriber equipment, comprising:
Acquisition module is used for obtaining the subframe configuration information of described via node at the Un interface from via node, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Judge module, whether the subframe configuration information that is used for obtaining according to described acquisition module is judged between described Un interface of the uplink moment and Uu interface can produce transmission collision, and described Uu interface is used for the transfer of data between described subscriber equipment and the described via node;
Update module is used for upgrading the described uplink time according to the timing relationship on the access link of described Uu interface correspondence when described judge module judges that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface.
Preferably, described update module also is used to notify described judge module to judge between described Un interface of the moment of the uplink after the described renewal and described Uu interface whether can produce transmission collision.
Preferably, described trunk subscriber equipment also comprises:
Transport module is used for sending upstream data to described via node constantly in described uplink when described judge module judgement can not produce transmission collision between described described Un interface of the uplink moment and described Uu interface.
Preferably, described trunk subscriber equipment also comprises:
Counting module is used for when described judge module judges that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface the number of transmissions statistical value being increased default value;
Detection module, whether be used to detect described the number of transmissions statistical value that described counting module obtains greater than default maximum transmission times, when described the number of transmissions statistical value is not more than described default maximum transmission times, notify described judge module to judge in the uplink after the described renewal whether can produce transmission collision between described Un interface and the described Uu interface constantly;
Described transport module, also be used for working as described the number of transmissions statistical value greater than described default maximum transmission times, and and the uplink corresponding service pattern between the described via node triggers rlc layer by Radio Link control RLC status report and retransmits when being affirmation mode AM.
The embodiment of the invention has also proposed the system of a kind of Un of avoiding interface and Uu conflicts of interface transmission, comprising:
Base station equipment is used for the subframe configuration information notice via node with the Un interface, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Via node is used to receive the subframe configuration information from the described Un interface of described base station equipment, and the subframe configuration information of described Un interface is sent to trunk subscriber equipment;
Trunk subscriber equipment, be used for obtaining the subframe configuration information of described via node at described Un interface from described via node, judge between described Un interface of the uplink moment and described Uu interface whether can produce transmission collision according to the described subframe configuration information that obtains, described Uu interface is used for the transfer of data between described subscriber equipment and the described via node, when judging that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface, upgrade the described uplink time according to the timing relationship on the access link of described Uu interface correspondence.
The technical scheme of the embodiment of the invention has the following advantages, because judge between uplink moment Un interface and Uu interface whether can produce transmission collision according to subframe configuration information by trunk subscriber equipment, if transmission collision can take place then abandon uplink, thereby, on trunk subscriber equipment, avoid unnecessary power consumption, reduced the interference of access link on adjacent cells and repeated link.
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 embodiment 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 communications network deployment schematic diagram behind the introducing RN;
Fig. 2 is the structural representation of MBSFN subframe;
Fig. 3 is the up initial transmission on the access link and the uplink transmission conflict schematic diagram of repeated link;
Fig. 4 is that the uplink synchronous on the access link retransmits the uplink transmission conflict schematic diagram with repeated link;
Fig. 5 is the HARQ process schematic diagram in the FDD system;
Fig. 6 is a kind of method flow diagram of avoiding conflicts of interface transmission in the embodiment of the invention;
Fig. 7 is a kind of application scenarios flow chart of avoiding conflicts of interface transmission in the embodiment of the invention;
Fig. 8 is a kind of process schematic diagram of avoiding conflicts of interface transmission in the embodiment of the invention;
Fig. 9 is the structural representation of a kind of trunk subscriber equipment in the embodiment of the invention;
Figure 10 is the structural representation of the another kind of trunk subscriber equipment in the embodiment of the invention;
Figure 11 is a kind of system configuration schematic diagram of avoiding conflicts of interface transmission in the embodiment of the invention.
Embodiment
The technical scheme that the embodiment of the invention provides is, RN will send to trunk subscriber equipment from the subframe configuration information on repeated link, and trunk subscriber equipment judges between uplink moment Un interface and Uu interface whether can produce transmission collision according to this subframe configuration information.If can not produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment constantly carries out uplink with via node in uplink; If between uplink moment Un interface and Uu interface, can produce transmission collision, then trunk subscriber equipment does not constantly carry out uplink with via node in uplink, but judges between next uplink moment Un interface and Uu interface whether can produce transmission collision.
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.
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, because system supports multiple UL (Uplink, up link)/DL (Downlink, down link) configuration, therefore, the descending sub frame of transmission UL grant and PUSCH (the Physical Uplink SharedChannel of UL grant correspondence, Physical Uplink Shared Channel) timing relationship between 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
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 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, be a kind of method flow diagram of avoiding conflicts of interface transmission in the embodiment of the invention, be applied to comprise in the system of base station equipment, via node and trunk subscriber equipment, wherein, base station equipment and via node carry out transfer of data by the Un interface, via node and trunk subscriber equipment carry out transfer of data by the Uu interface, and this method may further comprise the steps:
Step 601, trunk subscriber equipment obtains the subframe configuration information of via node at the Un interface from via node.
Wherein, subframe configuration information comprises the position of MBSFN subframe in the radio frames group, and the cycle of the radio frames group of configuration MBSFN subframe.Base station equipment sends to via node with subframe configuration information dispose the MBSFN subframe in the radio frames group after, and via node is subsequently with the corresponding trunk subscriber equipment of this subframe configuration information notice.
Step 602, trunk subscriber equipment judges between uplink moment Un interface and Uu interface whether can produce transmission collision according to subframe configuration information, if can not produce transmission collision between uplink moment Un interface and Uu interface, then execution in step 603; If can produce transmission collision between uplink moment Un interface and Uu interface, then execution in step 604.
After trunk subscriber equipment obtains subframe configuration information, can obtain the position of MBSFN subframe, and the hypothesis base station equipment can send DL assignment and/or UL grant to via node in this MBSFN subframe according to subframe configuration information.After trunk subscriber equipment receives ULgrant from via node, can be according to the subframe configuration information of Un interface, and the UL HARQ timing relationship of Un interface and Uu interface, whether the uplink of prediction Uu interface on the subframe of UL grant indication can produce transmission collision with the uplink of Un interface.
Step 603, trunk subscriber equipment constantly carries out uplink with via node in uplink.
If can not produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment constantly carries out uplink with via node in this uplink, sends upstream data to via node.
Step 604, trunk subscriber equipment upgrades the uplink time according to the timing relationship on the access link of Uu interface correspondence.
If between uplink moment Un interface and Uu interface, can produce transmission collision, then trunk subscriber equipment upgrades this uplink time according to the timing relationship on the access link of Uu interface correspondence, with this uplink time delay HARQ RTT (Round Trip Time, two-way time), and continue execution in step 602, judge between the moment of the uplink after renewal Un interface and Uu interface whether can produce transmission collision.
HARQ RTT, the time interval between twice transmission of promptly same data block.Because downlink transfer adopts asynchronous HARQ mechanism, can not consider HARQ RTT; And for the uplink of adopting synchronous HARQ mechanism, need transmit in strict accordance with HARQ RTT.
Particularly, in the FDD system, the HARQ RTT of uplink is 8ms.In the TDD system, the value of ascending HARQ RTT is also different under the different UL/DL configurations, and for the UL/DL configuration that is numbered 0, ascending HARQ RTT is 35ms; For the UL/DL configuration that is numbered 1 to 5, ascending HARQ RTT is 10ms; For the UL/DL configuration that is numbered 6, ascending HARQ RTT is 60ms.
The technical scheme of the embodiment of the invention has the following advantages, judge between uplink moment Un interface and Uu interface whether can produce transmission collision by trunk subscriber equipment according to subframe configuration information, if transmission collision can take place then abandon uplink, on trunk subscriber equipment, avoid unnecessary power consumption, reduced the interference of access link on adjacent cells and repeated link.
The present invention provides the method for a kind of Un of avoiding interface and Uu conflicts of interface transmission by the foregoing description, below with reference to concrete application scenarios said method is carried out detailed, concrete description.
As shown in Figure 7, a kind of application scenarios flow chart of avoiding conflicts of interface transmission in the embodiment of the invention specifically may further comprise the steps:
Particularly, base station equipment is RRC (Radio Resource Control) layer of sub-frame configuration of finishing on the Un interface, and this configuration information comprises the position of MBSFN subframe in the radio frames group, and the cycle of the radio frames group of configuration MBSFN subframe.
Particularly, after via node obtains the subframe configuration information of Un interface by step 701, this information is sent to corresponding trunk subscriber equipment, will carry out this trunk subscriber equipment of position informing of the MBSFN subframe of downlink transfer.
After trunk subscriber equipment obtains subframe configuration information, can obtain the position of MBSFN subframe, and the hypothesis base station equipment can send DL assignment and/or UL grant to via node in this MBSFN subframe according to subframe configuration information.After trunk subscriber equipment receives ULgrant from via node, can be according to the subframe configuration information on the Un interface, and the UL HARQ timing relationship on Un interface and the Uu interface, whether the uplink of prediction Uu interface on the subframe of UL grant indication can produce transmission collision with the uplink of Un interface.
If can not produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment carries out the uplink of Uu interface at the sub-frame of uplink and the via node of UL grant indication, sends upstream data to via node.
If can produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment increases default value with the number of transmissions statistical value, and wherein, the number of transmissions statistical value is used to represent the number of retransmissions of same data block.
Need to prove that default value can be 1, can be other numerical value yet, the variation of default value does not influence protection scope of the present invention.
Whether step 706, trunk subscriber Equipment Inspection the number of transmissions statistical value greater than default maximum transmission times, if the number of transmissions statistical value greater than default maximum transmission times, then execution in step 707; If the number of transmissions statistical value is not more than default maximum transmission times, then execution in step 708.
Wherein, maximum transmission times can be a fixed value, also can on-the-fly modify as required, and the change of maximum transmission times does not influence protection scope of the present invention.
If the number of transmissions statistical value is greater than default maximum transmission times, trunk subscriber equipment no longer carries out uplink by physical layer and via node, when uplink corresponding service pattern is AM, triggers rlc layer by the RLC status report and retransmits; When uplink corresponding service pattern is other patterns, does not then carry out rlc layer and retransmit.
If the number of transmissions statistical value is not more than default maximum transmission times, then trunk subscriber equipment upgrades this uplink time according to the timing relationship on the access link of Uu interface correspondence, with this uplink time delay HARQ RTT, and continue execution in step 703, judge between the moment of the uplink after renewal Un interface and Uu interface whether can produce transmission collision.
For convenience of description, below in conjunction with concrete example the above-mentioned process of transmission collision of avoiding is described in detail.As shown in Figure 8, be a kind of process schematic diagram of avoiding Un interface and Uu conflicts of interface transmission in the embodiment of the invention, trunk subscriber equipment carries out UL first at subframe n to via node and retransmits, and prediction may produce transmission collision in the uplink of subframe n+8Un interface and Uu interface, therefore, trunk subscriber equipment has stopped retransmitting for the second time, and whether prediction can produce transmission collision at the subframe n+16Un interface and the Uu interface of next HARQ RTT correspondence, if judge and find can not produce transmission collision, then retransmit for the third time at subframe n+16.
Because what access link adopted is synchronous HARQ, therefore, do not send the subframe of upstream data for fear of transmission collision for trunk subscriber equipment, via node also may carry out the ACK/NACK feedback.If the ACK/NACK that trunk subscriber equipment acknowledges receipt of according to HARQ timing relationship feedback at be nonevent uplink, can ignore this ACK/NACK feedback.
Need to prove that embodiment of the invention method can be adjusted each sequence of steps according to actual needs.
The technical scheme of the embodiment of the invention has the following advantages, judge between uplink moment Un interface and Uu interface whether can produce transmission collision by trunk subscriber equipment according to subframe configuration information, if transmission collision can take place then abandon uplink, ignore ACK/NACK feedback at this uplink, and at the number of transmissions statistical value during greater than default maximum transmission times, be transmitted in by high level and avoided unnecessary power consumption on the trunk subscriber equipment, reduce the interference of access link on adjacent cells and repeated link.
As shown in Figure 9, structural representation for a kind of trunk subscriber equipment in the embodiment of the invention, be applied to comprise in the system of base station equipment, via node and trunk subscriber equipment, wherein, base station equipment and via node carry out transfer of data by the Un interface, via node and trunk subscriber equipment carry out transfer of data by the Uu interface, and this trunk subscriber equipment comprises:
Wherein, subframe configuration information comprises the position of MBSFN subframe in the radio frames group, and the cycle of the radio frames group of configuration MBSFN subframe.
Above-mentioned acquisition module 810 is to be responsible in the above trunk subscriber equipment obtaining the part of via node at the subframe configuration information of Un interface from via node, can be software, hardware or both combinations.
Whether judge module 820, the subframe configuration information that is used for obtaining according to acquisition module 810 are judged between uplink moment Un interface and Uu interface can produce transmission collision.
Particularly, the position that judge module 820 obtains the MBSFN subframe according to subframe configuration information, and the hypothesis base station equipment can send DL assignment and/or ULgrant to via node in this MBSFN subframe.After trunk subscriber equipment receives UL grant from via node, can be according to the subframe configuration information of Un interface, and the UL HARQ timing relationship of Un interface and Uu interface, whether the uplink of prediction Uu interface on the subframe of UL grant indication can produce transmission collision with the uplink of Un interface.
Above-mentioned judge module 820 is to be responsible in the above trunk subscriber equipment judging the part that whether can produce transmission collision between uplink moment Un interface and Uu interface according to subframe configuration information, can be software, hardware or both combinations.
Above-mentioned transport module 830 is to be responsible in the above trunk subscriber equipment in the uplink moment and the part that via node carries out uplink, can be software, hardware or both combinations.
Particularly, update module 840 is upgraded this uplink time according to the timing relationship on the access link of Uu interface correspondence, with this uplink time delay HARQ RTT.
Above-mentioned update module 840 is to be responsible in the above trunk subscriber equipment when judging that meeting produces transmission collision between uplink moment Un interface and Uu interface, upgrading the part of uplink time according to the timing relationship on the access link of Uu interface correspondence, can be software, hardware or both combinations.
The technical scheme of the embodiment of the invention has the following advantages, judge between uplink moment Un interface and Uu interface whether can produce transmission collision by trunk subscriber equipment according to subframe configuration information, if transmission collision can take place then abandon uplink, on trunk subscriber equipment, avoid unnecessary power consumption, reduced the interference of access link on adjacent cells and repeated link.
As shown in figure 10, the structural representation for the another kind of trunk subscriber equipment in the embodiment of the invention comprises:
Acquisition module 910 is used for obtaining the subframe configuration information of via node at the Un interface from via node.
Wherein, subframe configuration information comprises the position of MBSFN subframe in the radio frames group, and the cycle of the radio frames group of configuration MBSFN subframe.Base station equipment sends to via node with subframe configuration information dispose the MBSFN subframe in the radio frames group after, and via node is subsequently with the corresponding trunk subscriber equipment of this subframe configuration information notice.
Above-mentioned acquisition module 910 is to be responsible in the above trunk subscriber equipment obtaining the part of via node at the subframe configuration information of Un interface from via node, can be software, hardware or both combinations.
Whether judge module 920, the subframe configuration information that is used for obtaining according to acquisition module 910 are judged between uplink moment Un interface and Uu interface can produce transmission collision.
Particularly, the position that judge module 920 obtains the MBSFN subframe according to subframe configuration information, and the hypothesis base station equipment can send DL assignment and/or ULgrant to via node in this MBSFN subframe.After trunk subscriber equipment receives UL grant from via node, can be according to the subframe configuration information of Un interface, and the UL HARQ timing relationship of Un interface and Uu interface, whether the uplink of prediction Uu interface on the subframe of UL grant indication can produce transmission collision with the uplink of Un interface.
Above-mentioned judge module 920 is to be responsible in the above trunk subscriber equipment judging the part that whether can produce transmission collision between uplink moment Un interface and Uu interface according to subframe configuration information, can be software, hardware or both combinations.
Transport module 930 is used for constantly carrying out uplink with via node in uplink when judge module 920 judgements can not produce transmission collision between uplink moment Un interface and Uu interface.
Above-mentioned transport module 930 is to be responsible in the above trunk subscriber equipment in the uplink moment and the part that via node carries out uplink, can be software, hardware or both combinations.
Update module 940, be used for when judge module 920 judges that meeting produces transmission collision between uplink moment Un interface and Uu interface, upgrade the uplink time according to the timing relationship on the access link of Uu interface correspondence, and notice judge module 920 judges between the moment of the uplink after renewal Un interface and Uu interface whether can produce transmission collision.
Particularly, update module 940 is upgraded this uplink time according to the timing relationship on the access link of Uu interface correspondence, with this uplink time delay HARQ RTT.
Above-mentioned update module 940 is to be responsible in the above trunk subscriber equipment when judging that meeting produces transmission collision between uplink moment Un interface and Uu interface, upgrading the part of uplink time according to the timing relationship on the access link of Uu interface correspondence, can be software, hardware or both combinations.
Counting module 950 is used for when judge module 920 judges that meeting produces transmission collision between uplink moment Un interface and Uu interface the number of transmissions statistical value being increased default value.
Wherein, the number of transmissions statistical value is used to represent the number of retransmissions of same data block, and default value can be 1, also can be other numerical value, and the variation of default value does not influence protection scope of the present invention.
Above-mentioned counting module 950 is to be responsible in the above trunk subscriber equipment when judging that meeting produces transmission collision between uplink moment Un interface and Uu interface, with the part of the number of transmissions statistical value increase default value, can be software, hardware or both combinations.
Detection module 960, whether be used to detect the number of transmissions statistical value that counting module 950 obtains greater than default maximum transmission times, when the number of transmissions statistical value was not more than default maximum transmission times, whether notice judge module 920 is judged between the moment of the uplink after renewal Un interface and Uu interface can produce transmission collision.
Wherein, maximum transmission times can be a fixed value, also can on-the-fly modify as required, and the change of maximum transmission times does not influence protection scope of the present invention.
Above-mentioned detection module 960 is to be responsible for detected transmission number of times statistical value in the above trunk subscriber equipment whether greater than the part of default maximum transmission times, can be software, hardware or both combinations.
Correspondingly, transport module 930, also be used for when the number of transmissions statistical value greater than default maximum transmission times, and uplink corresponding service pattern is carried out uplink by rlc layer and via node when being AM.
Particularly, when the number of transmissions statistical value during greater than default maximum transmission times, transport module 930 no longer carries out uplink by physical layer and via node, and when uplink corresponding service pattern was AM, transport module 930 triggered rlc layer by the RLC status report and retransmits; When uplink corresponding service pattern was other patterns, transport module 930 did not carry out rlc layer and retransmits.
The technical scheme of the embodiment of the invention has the following advantages, judge between uplink moment Un interface and Uu interface whether can produce transmission collision by trunk subscriber equipment according to subframe configuration information, if transmission collision can take place then abandon uplink, and at the number of transmissions statistical value during greater than default maximum transmission times, be transmitted in by high level and avoided unnecessary power consumption on the trunk subscriber equipment, reduce the interference of access link on adjacent cells and repeated link.
As shown in figure 11, be a kind of system configuration schematic diagram of avoiding conflicts of interface transmission in the embodiment of the invention, comprise base station equipment 110, via node 120 and trunk subscriber equipment 130, base station equipment 110 and via node 120 carry out transfer of data by the Un interface, via node 120 carries out transfer of data with trunk subscriber equipment 130 by the Uu interface, wherein
Particularly, base station equipment 110 is finished the sub-frame configuration of Un interface at rrc layer, and this configuration information comprises the position of MBSFN subframe in the radio frames group, and the cycle of the radio frames group of configuration MBSFN subframe.
Via node 120 is used to receive the subframe configuration information from the Un interface of base station equipment 110, and the subframe configuration information of Un interface is sent to trunk subscriber equipment 130.
After trunk subscriber equipment 130 obtains subframe configuration information, can obtain the position of MBSFN subframe, and hypothesis base station equipment 110 can send DL assignment and/or UL grant to via node 120 in this MBSFN subframe according to subframe configuration information.After trunk subscriber equipment 130 receives UL grant from via node 120, can be according to the subframe configuration information of Un interface, and the UL HARQ timing relationship on Un interface and the Uu interface, whether the uplink of prediction Uu interface on the subframe of UL grant indication can produce transmission collision with the uplink of Un interface.If can not produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment 130 carries out the uplink of Uu interface at the sub-frame of uplink and the via node of UL grant indication, sends upstream datas to via node 120.
Above-mentioned trunk subscriber equipment 130, also be used for when judging that meeting produces transmission collision between uplink moment Un interface and Uu interface, the number of transmissions statistical value is increased default value, and whether detected transmission number of times statistical value is greater than default maximum transmission times, when the number of transmissions statistical value is not more than default maximum transmission times, judge between the moment of the uplink after renewal Un interface and Uu interface whether can produce transmission collision; When the number of transmissions statistical value during, carry out uplink with via node by high-rise greater than default maximum transmission times.
If can produce transmission collision between uplink moment Un interface and Uu interface, then trunk subscriber equipment 130 increases default value with the number of transmissions statistical value, and wherein, the number of transmissions statistical value is used to represent the number of retransmissions of same data block.Maximum transmission times can be a fixed value, also can on-the-fly modify as required, and the change of maximum transmission times does not influence protection scope of the present invention.
If the number of transmissions statistical value is greater than default maximum transmission times, trunk subscriber equipment 130 no longer carries out uplink by physical layer and via node, when uplink corresponding service pattern is AM, triggers rlc layer by the RLC status report and retransmits; When uplink corresponding service pattern is other patterns, does not then carry out rlc layer and retransmit.
Above-mentioned trunk subscriber equipment 130, also be used for to produce transmission collision when judging between uplink moment Un interface and Uu interface, and when the number of transmissions statistical value is not more than default maximum transmission times, upgrade the uplink time according to the timing relationship on the access link of Uu interface correspondence, and judge between the moment of the uplink after renewal Un interface and Uu interface whether can produce transmission collision.
Particularly, trunk subscriber equipment 130 upgrades this uplink time according to the timing relationship on the access link of Uu interface correspondence, with this uplink time delay HARQ RTT.
The technical scheme of the embodiment of the invention has the following advantages, judge between uplink moment Un interface and Uu interface whether can produce transmission collision by trunk subscriber equipment 130 according to subframe configuration information, if transmission collision can take place then abandon uplink, and at the number of transmissions statistical value during greater than default maximum transmission times, be transmitted in by high level and avoided unnecessary power consumption on the trunk subscriber equipment 130, reduce the interference of access link on adjacent cells and repeated link.
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 (10)
1. a method of avoiding conflicts of interface transmission is characterized in that, may further comprise the steps:
Trunk subscriber equipment obtains the subframe configuration information of described via node at the Un interface from via node, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Described trunk subscriber equipment judges between described Un interface of the uplink moment and Uu interface whether can produce transmission collision according to described subframe configuration information, and described Uu interface is used for the transfer of data between described subscriber equipment and the described via node;
If can produce transmission collision between described described Un interface of the uplink moment and described Uu interface, then described trunk subscriber equipment upgrades the described uplink time according to the timing relationship on the access link of described Uu interface correspondence.
2. the method for claim 1 is characterized in that, described trunk subscriber equipment upgrades after the uplink time according to the timing relationship on the access link of Uu interface correspondence, also comprises:
Whether described trunk subscriber equipment is judged between described Un interface of the moment of the uplink after the described renewal and described Uu interface can produce transmission collision.
3. the method for claim 1 is characterized in that, described trunk subscriber equipment also comprises after whether can producing transmission collision according to the subframe configuration information judgement between uplink moment Un interface and Uu interface:
If can not produce transmission collision between described described Un interface of the uplink moment and described Uu interface, then described trunk subscriber equipment sends upstream data to described via node constantly in described uplink.
4. the method for claim 1 is characterized in that, described trunk subscriber equipment upgraded before the uplink time according to the timing relationship on the access link of Uu interface correspondence, also comprised:
Described trunk subscriber equipment increases default value with the number of transmissions statistical value;
Described trunk subscriber equipment determines that described the number of transmissions statistical value is not more than default maximum transmission times.
5. the method for claim 1, it is characterized in that, described subframe configuration information comprises the cycle of the radio frames group of the position of multicast single frequency network MBSFN subframe in the radio frames group and configuration MBSFN subframe, and described MBSFN subframe is used to realize the transfer of data of described Un interface.
6. a trunk subscriber equipment is characterized in that, comprising:
Acquisition module is used for obtaining the subframe configuration information of described via node at the Un interface from via node, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Judge module, whether the subframe configuration information that is used for obtaining according to described acquisition module is judged between described Un interface of the uplink moment and Uu interface can produce transmission collision, and described Uu interface is used for the transfer of data between described subscriber equipment and the described via node;
Update module is used for upgrading the described uplink time according to the timing relationship on the access link of described Uu interface correspondence when described judge module judges that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface.
7. trunk subscriber equipment as claimed in claim 6 is characterized in that,
Described update module also is used to notify described judge module to judge between described Un interface of the moment of the uplink after the described renewal and described Uu interface whether can produce transmission collision.
8. trunk subscriber equipment as claimed in claim 6 is characterized in that, also comprises:
Transport module is used for sending upstream data to described via node constantly in described uplink when described judge module judgement can not produce transmission collision between described described Un interface of the uplink moment and described Uu interface.
9. trunk subscriber equipment as claimed in claim 8 is characterized in that, also comprises:
Counting module is used for when described judge module judges that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface the number of transmissions statistical value being increased default value;
Detection module, whether be used to detect described the number of transmissions statistical value that described counting module obtains greater than default maximum transmission times, when described the number of transmissions statistical value is not more than described default maximum transmission times, notify described judge module to judge in the uplink after the described renewal whether can produce transmission collision between described Un interface and the described Uu interface constantly;
Described transport module, also be used for working as described the number of transmissions statistical value greater than described default maximum transmission times, and and the uplink corresponding service pattern between the described via node triggers rlc layer by Radio Link control RLC status report and retransmits when being affirmation mode AM.
10. a system that avoids conflicts of interface transmission is characterized in that, comprising:
Base station equipment is used for the subframe configuration information notice via node with the Un interface, and described Un interface is used for the transfer of data between described via node and the base station equipment;
Via node is used to receive the subframe configuration information from the described Un interface of described base station equipment, and the subframe configuration information of described Un interface is sent to trunk subscriber equipment;
Trunk subscriber equipment, be used for obtaining the subframe configuration information of described via node at described Un interface from described via node, judge between described Un interface of the uplink moment and described Uu interface whether can produce transmission collision according to the described subframe configuration information that obtains, described Uu interface is used for the transfer of data between described subscriber equipment and the described via node, when judging that meeting produces transmission collision between described described Un interface of the uplink moment and described Uu interface, upgrade the described uplink time according to the timing relationship on the access link of described Uu interface correspondence.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101583482A CN101925189A (en) | 2009-06-15 | 2009-07-07 | Method, device and system for avoiding transmission conflict of interfaces |
| CN2010101067299A CN101925118B (en) | 2009-06-15 | 2010-02-08 | Method, device and system for avoiding conflicts of interface transmission |
| PCT/CN2010/073844 WO2010145507A1 (en) | 2009-06-15 | 2010-06-11 | Method, apparatus and system for avoiding transmission conflict of interfaces |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910087258.9 | 2009-06-15 | ||
| CN200910087258 | 2009-06-15 | ||
| CN2009101583482A CN101925189A (en) | 2009-06-15 | 2009-07-07 | Method, device and system for avoiding transmission conflict of interfaces |
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| CN101925189A true CN101925189A (en) | 2010-12-22 |
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| CN2009101583482A Pending CN101925189A (en) | 2009-06-15 | 2009-07-07 | Method, device and system for avoiding transmission conflict of interfaces |
| CN2010101067299A Active CN101925118B (en) | 2009-06-15 | 2010-02-08 | Method, device and system for avoiding conflicts of interface transmission |
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| CN2010101067299A Active CN101925118B (en) | 2009-06-15 | 2010-02-08 | Method, device and system for avoiding conflicts of interface transmission |
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| WO (1) | WO2010145507A1 (en) |
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| CN103826267A (en) * | 2012-11-16 | 2014-05-28 | 中兴通讯股份有限公司 | Lte network relay station time sequence switching method and relay station |
| WO2015039313A1 (en) * | 2013-09-18 | 2015-03-26 | 华为技术有限公司 | Method, user equipment, and base station for transmission of hybrid automatic repeat request-acknowledgement |
| CN104793576A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Solution method for concurrency conflicts of transmission LINK network communication |
| CN111147193A (en) * | 2018-11-02 | 2020-05-12 | 电信科学技术研究院有限公司 | Retransmission request method, terminal and network side device for Internet of vehicles |
| CN113424654A (en) * | 2019-04-01 | 2021-09-21 | 华为技术有限公司 | Data transmission method and communication equipment |
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| 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 |
| US9397796B2 (en) | 2013-03-13 | 2016-07-19 | Samsung Electronics Co., Ltd. | Computing and transmitting channel state information in adaptively configured TDD communication systems |
| CN105103471A (en) * | 2013-04-01 | 2015-11-25 | 美国博通公司 | Additional assistance information for common reference signal interference |
| KR102202360B1 (en) * | 2016-11-04 | 2021-01-13 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Information transmission method, network device, and terminal device |
| KR102322381B1 (en) * | 2018-02-14 | 2021-11-10 | 주식회사 케이티 | Method for processing a RRC message of relay node and Apparatuses thereof |
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| MXPA04001267A (en) * | 2001-08-25 | 2004-05-27 | Nokia Corp | System and method for collision-free transmission scheduling using neighborhood information and advertised transmission times. |
| US7668092B2 (en) * | 2002-11-21 | 2010-02-23 | Honeywell International Inc. | Data transmission system and method |
| CN101154988B (en) * | 2006-09-26 | 2011-03-30 | 大唐移动通信设备有限公司 | Control method and system for transmission collision |
| US20090103440A1 (en) * | 2007-10-23 | 2009-04-23 | Nokia Corporation | Collision avoidance for uplink VoIP transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103826267A (en) * | 2012-11-16 | 2014-05-28 | 中兴通讯股份有限公司 | Lte network relay station time sequence switching method and relay station |
| CN103826267B (en) * | 2012-11-16 | 2017-09-29 | 中兴通讯股份有限公司 | The method and relay station of LTE network relay station sequential switching |
| WO2015039313A1 (en) * | 2013-09-18 | 2015-03-26 | 华为技术有限公司 | Method, user equipment, and base station for transmission of hybrid automatic repeat request-acknowledgement |
| US10277363B2 (en) | 2013-09-18 | 2019-04-30 | Huawei Technologies Co., Ltd. | Hybrid automatic repeat request acknowledgement transmission method, user equipment, and base station |
| CN104793576A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Solution method for concurrency conflicts of transmission LINK network communication |
| CN104793576B (en) * | 2014-01-21 | 2017-06-23 | 宝山钢铁股份有限公司 | A kind of concurrency conflict solution of transmission LINK network communications |
| CN111147193A (en) * | 2018-11-02 | 2020-05-12 | 电信科学技术研究院有限公司 | Retransmission request method, terminal and network side device for Internet of vehicles |
| CN113424654A (en) * | 2019-04-01 | 2021-09-21 | 华为技术有限公司 | Data transmission method and communication equipment |
| CN113424654B (en) * | 2019-04-01 | 2022-08-26 | 华为技术有限公司 | Data transmission method and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101925118A (en) | 2010-12-22 |
| CN101925118B (en) | 2013-03-27 |
| WO2010145507A1 (en) | 2010-12-23 |
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