CN101867406A - Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN) - Google Patents
Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN) Download PDFInfo
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Abstract
The invention discloses a method and a system for acquiring two subframe positions. The method comprises the following steps that: A, a relay node (RN) receives a notification message from an evolved node B (eNB), wherein the notification message carries an uplink subframe position for the uplink transmission of a backhaul link or a downlink subframe position for the downlink transmission of the backhaul link; and the uplink subframe position and the downlink subframe position are configured by the RN; and B, the RN determines the uninformed downlink subframe position for the downlink transmission of the backhaul link or the uplink subframe position for the uplink transmission of the backhaul link according to the notification message and hybrid automatic retransmission request (HARQ) timing relationship which is restored per se in advance. The invention also discloses the eNB and the RN. Due to the application of the method, the system and the device, signalling expenditure can be reduced.
Description
Technical field
The present invention relates to mobile communication technology, particularly subframe position acquisition methods and system and base station and via node.
Background technology
Via node (RN, Relay Node) three wireless links have appearred in the feasible mobile communication system based on Relay of introducing, that is: eNB-macro UE direct projection link (direct link), eNB-RN back haul link (backhaul link) and RN-relay UE access link (access link) below abbreviate direct link, backhaul link and access link respectively as.The transceiver of RN adopts the mode of operation of time division duplex (TDD, Time Division Dual), promptly receives and sends and can not carry out simultaneously.
The backhaul link can adopt identical frequency spectrum with the access link, but because the transmitter of RN has interference (unless can provide enough isolation to the signal that passes in and out) to own receiver, therefore descending backhaul link and descending access link are unsuitable for existing simultaneously on same frequency resource usually, and be up as the same.For avoiding above-mentioned interference, usually adopt following processing mode in the prior art: (eNB) receives data if RN is from the base station, then do not send data to UE, promptly utilize multicast single frequency network (MBSFN, Multimedia Broadcast Single FrequencyNetwork) subframe to create " gap " in the transmission time at descending access.Fig. 1 utilizes the MBFSN subframe to carry out the schematic diagram of repeated link downlink transfer for existing.As shown in Figure 1, in " gap ", RN only can receive the data from eNB, and can not send data to UE; " Ctrl " is used for RN and sends control signaling to UE, promptly UE dispatched.
Though mode shown in Figure 1 has solved interference problem, this mode has also been brought new problem, such as:
Fig. 2 is existing a kind of scheduling of resource mode schematic diagram.As shown in Figure 2, at subframe #n, UE receives the Physical Downlink Control Channel (PDCCH from RN, Physical Downlink ControlChannel), wherein carry RN to the uplink scheduling information of UE in subframe #n+k, correspondingly, UE will send Physical Uplink Control Channel (PUCCH to RN in subframe #n+k, Physical UplinkControl Channel) and Physical Uplink Shared Channel (PUSCH, Physical UplinkSharedChannel); RN is after UE sends PUCCH, receive relaying-Physical Downlink Shared Channel (R-PDSCH that eNB sends to RN, Relay-Physical Downlink Shared Channel) and R-PDCCH, wherein carry eNB to the uplink scheduling information of RN in subframe #n+k, correspondingly, RN will send R-PUCCH and R-PUSCH in subframe #n+k; Will cause in same subframe RN should carry out transmit operation like this, carry out reception operation again, thereby cause resource contention at UE at eNB.
In addition, though adopt mode shown in Figure 1 can solve interference problem, which subframe how not clear and definite RN to be known as the MBSFN subframe in the prior art.At above-mentioned two kinds of problems, propose in the applicant's one piece of patent application formerly will dispose in advance to the sub-frame of uplink that is used for the uplink of backhaul link of RN and the descending sub frame that is used for backhaul link downlink transfer and be notified to RN by eNB, so that RN is known which descending sub frame is configured to the MBSFN subframe, and make UE in institute's collocating uplink subframe, not carry out uplink scheduling, thereby avoid causing resource contention to UE.
But, because the descending sub frame that this mode needs to be used for the sub-frame of uplink of backhaul link uplink simultaneously and is used for backhaul link downlink transfer is notified to RN, so cause signaling consumption bigger.
Summary of the invention
In view of this, main purpose of the present invention is to provide two subframe positions acquisition methods, can reduce signaling consumption.
Another object of the present invention is to provide a kind of base station, can reduce signaling consumption.
Another purpose of the present invention is to provide a kind of via node, can reduce signaling consumption.
A further object of the present invention is to provide a subframe positions to obtain system, can reduce signaling consumption.
For achieving the above object, technical scheme of the present invention is achieved in that
One subframe positions acquisition methods comprises:
A, via node RN receive the notification message from base station eNB, and carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
B, described RN determine descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
One subframe positions acquisition methods comprises:
Base station eNB sends a notification message to via node RN, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer, so that described RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
A kind of base station eNB comprises:
Generation unit, be used to generate notification message, carry described eNB in the described notification message for the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of via node RN configuration or be used for the descending sub frame position of backhaul link downlink transfer, so that described RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance;
Transmitting element is used for described notification message is sent to described RN.
A kind of via node RN comprises:
Receiving element, be used to receive the notification message from institute's base station eNB, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
Determining unit, be used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
One subframe positions is obtained system, comprising:
Base station eNB, be used for sending a notification message to via node RN, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
Described RN, be used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
As seen, adopt technical scheme of the present invention, eNB only needs and will dispose the sub-frame of uplink position that is used for the uplink of backhaul link of giving RN or a kind of RN of being notified to that is used for the descending sub frame position of backhaul link downlink transfer, follow-up RN can determine descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link voluntarily according to notification message that receives and the HARQ that self preserves in advance timing relationship.Compared with prior art, scheme of the present invention need not to notify simultaneously the up-downgoing of being disposed two subframe positions, thereby has reduced signaling consumption.
Description of drawings
Fig. 1 utilizes the MBFSN subframe to carry out the schematic diagram of repeated link downlink transfer for existing.
Fig. 2 is existing a kind of scheduling of resource mode schematic diagram.
Fig. 3 is the flow chart of the inventive method embodiment.
Fig. 4 is the ascending-descending subframes position view under the fdd mode in the embodiment of the invention.
Fig. 5 is the ascending-descending subframes position view under the tdd mode in the embodiment of the invention.
Fig. 6 is the composition structural representation of base station embodiment of the present invention.
Fig. 7 is the composition structural representation of via node embodiment of the present invention.
Embodiment
At problems of the prior art, the present invention proposes a kind of brand-new subframe position acquisition methods, be that eNB sends a notification message to RN, carrying eNB in this notification message is the sub-frame of uplink position that is used for the uplink of backhaul link of RN configuration or the descending sub frame position that is used for backhaul link downlink transfer; After RN receives this notification message, automatic repeat requests (the HARQ of the mixing of preserving in advance according to self, Hybrid Automatic Repeat Request) timing relationship is determined descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 3 is the flow chart of the inventive method embodiment.As shown in Figure 3, may further comprise the steps:
Step 301:eNB sends a notification message to RN, and carrying eNB in this notification message is the sub-frame of uplink position that is used for the uplink of backhaul link of RN configuration or the descending sub frame position that is used for backhaul link downlink transfer.
The descending sub frame how eNB is used for the sub-frame of uplink of backhaul link uplink for the RN configuration and is used for backhaul link downlink transfer is a prior art, repeats no more.
In the present embodiment, eNB only needs a kind of with in the subframe that is disposed, and the descending sub frame position informing that promptly is used for the sub-frame of uplink position of backhaul link uplink or is used for backhaul link downlink transfer is given RN, how to notify to be prior art, repeats no more.
Step 302:RN receives this notification message, and extracts sub-frame of uplink position that is used for the uplink of backhaul link of wherein carrying or the descending sub frame position that is used for backhaul link downlink transfer.
Step 303:RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to information that extracts and the HARQ timing relationship of self preserving in advance.
Here the HARQ timing relationship of being mentioned, comprise the timing relationship of timing relationship, PUSCH and the ACK/NACK of descending sub frame feedback of the ACK/NACK of PDSCH and sub-frame of uplink feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled etc.
On the backhaul link, PDSCH is sent by eNB, and corresponding ACK/NACK feedback is sent by the sub-frame of uplink of RN; PUSCH is sent by RN, and corresponding ACK/NACK feedback is sent by the descending sub frame of eNB; ACK/NACK and uplink scheduling information that eNB sends all transmit in Physical HARQ Indicator Channel PHICH.
Above-mentioned several timing relationship is and has provided in the prior art, such as:
For Frequency Division Duplexing (FDD) (FDD, Frequency Division Dual) system, if in subframe #n, send PDSCH or PUSCH, then at subframe #n+4 internal feedback ACK/NACK; If in subframe #n, send uplink scheduling information, then in subframe #n+4, send PUSCH etc.That is to say, in the FDD system, above-mentioned which kind of timing relationship no matter, the position of ascending-descending subframes only differs 4ms (length of each subframe is 1ms) all the time, so RN can determine sub-frame of uplink position that is used for the uplink of backhaul link of failing to give notice or the descending sub frame position that is used for backhaul link downlink transfer according to above-mentioned arbitrary timing relationship.Usually, subframe #0, #4, #5 and #9 can not be configured to be used for the descending sub frame of backhaul link downlink transfer, i.e. the MBSFN subframe.
For the TDD system, the feedback position of ACK/NACK and uplink scheduling position etc. are all relevant with the configuration of up-downgoing sequential, such as:
If at subframe #n internal feedback ACK/NACK, then the subframe of Dui Ying transmission PDSCH is #n-k, the value of k is as shown in table 1:
The timing relationship of table 1:ACK/NACK and PDSCH
If promptly at subframe 2 internal feedback ACK/NACK, then the subframe of Dui Ying transmission PDSCH is 2-6 (supposing to select for use configuration mode 0), i.e. the 6th subframe in the radio frames before the subframe 2 place radio frames.Need to prove, 7 kinds of configuration modes (common 0 and 5 need not) are provided in the table 1 altogether, in actual applications, specifically select for use which kind of configuration mode to be decided according to the actual requirements, follow-up analogue repeats no more.
If in subframe #n, send uplink scheduling information, the subframe of Dui Ying transmission PUSCH then, the sub-frame of uplink that promptly is scheduled is #n+k, the value of k is as shown in table 2:
Table 2 sends the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled
If at subframe #n scheduling PUSCH, then the subframe of Dui Ying transmission ACK/NACK is #n+k, getting of k is as shown in table 3:
The timing relationship of table 3PUSCH and ACKK/NACK
In the present embodiment, can be kept at above-mentioned three forms among the RN respectively, RN utilizes the information that extracts to table look-up then, thereby determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link.
Because for the FDD system, position between sub-frame of uplink and the descending sub frame is fixed, so RN can be directly will be differed the descending sub frame position that is used for backhaul link downlink transfer that the position of four subframe subframes is defined as failing to give notice with the sub-frame of uplink position of being notified that is used for the uplink of backhaul link; Equally, will differ the sub-frame of uplink position that is used for the uplink of backhaul link that the position of four subframes is defined as failing to give notice with the descending sub frame position of being notified that is used for backhaul link downlink transfer.
But for the TDD system, need then to determine the corresponding uplink and downlink subframe position that usually, subframe #0, #1, #5 and #6 can not be configured to be used for the descending sub frame of backhaul link downlink transfer, i.e. the MBSFN subframe by inquiring about concrete form.In addition, also can there be a problem, promptly when above-mentioned three forms of inquiry, may obtains two groups of above different Query Results for the TDD system.Such as, when utilize that the descending sub frame position enquiring that is used for backhaul link downlink transfer notified fails to give notice be used for the sub-frame of uplink position of backhaul link uplink the time, behind difference question blank 1 and table 2, may obtain two kinds of different Query Results, at this situation, regulation RN at first judges among this two group polling result whether have common factor in the present embodiment, if exist, the sub-frame of uplink position that is used for the uplink of backhaul link that subframe position in then will occuring simultaneously is defined as failing to give notice, if there is no, then with preassigned form, the sub-frame of uplink position that is used for the uplink of backhaul link that is defined as failing to give notice as the subframe position in the pairing Query Result of the PDSCH form corresponding with the timing relationship of ACK/NACK.
Possibility various case in comprehensive above-mentioned table 1～3 and the TDD system, how promptly existing handles if occuring simultaneously, do not exist common factor how to handle etc., the mode of sub-frame of uplink position that finally can obtain in the TDD system being identified for according to the descending sub frame position that is used for backhaul link downlink transfer the uplink of backhaul link is as follows:
The timing relationship of backhaul link descending sub frame and sub-frame of uplink in the table 4TDD system
If promptly being used for the descending sub frame position of backhaul link downlink transfer is #n, then the Dui Ying sub-frame of uplink position that is used for the uplink of backhaul link is #n+k, and the value of k is as shown in table 4.
Correspondingly, it is as follows finally to obtain in the TDD system being identified for according to the sub-frame of uplink position that is used for the uplink of backhaul link the mode of descending sub frame position of backhaul link downlink transfer:
The timing relationship of backhaul link sub-frame of uplink and descending sub frame in the table 5TDD system
If promptly being used for the sub-frame of uplink position of backhaul link uplink is #n, then the Dui Ying descending sub frame position that is used for backhaul link downlink transfer is #n+k, and the value of k is as shown in table 5.
Certainly, above-mentioned table 4 and 5 only for illustrating, if adopt other timing method, also is fine.
Fig. 4 is the ascending-descending subframes position view under the fdd mode in the embodiment of the invention.As shown in Figure 4, suppose that eNB notice RN subframe #n, #n+1 and #n+9 are the descending sub frame position that is used for backhaul link downlink transfer, then according to the HARQ timing relationship under the fdd mode, can determine that subframe #n+4, #n+5 and #n+13 are the sub-frame of uplink position that is used for the uplink of backhaul link, this subframe positions configuration mode is to the not influence of HARQ timing relationship of access link.
Fig. 5 is the ascending-descending subframes position view under the tdd mode in the embodiment of the invention.As shown in Figure 5, suppose that eNB notice RN subframe #n+3 and #n+8 are the descending sub frame position that is used for backhaul link downlink transfer, then according to the HARQ timing relationship under the tdd mode, as shown in table 4, can determine that subframe #n+7 and #n+12 are the sub-frame of uplink position that is used for the uplink of backhaul link.
Based on said method, the present invention provides a subframe positions to obtain system simultaneously, comprise: base station eNB, be used for sending a notification message to via node RN, carrying eNB in this notification message is the sub-frame of uplink position that is used for the uplink of backhaul link of RN configuration or the descending sub frame position that is used for backhaul link downlink transfer; RN is used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to this notification message and the HARQ timing relationship self preserved in advance.
Wherein: Fig. 6 is the composition structural representation of base station embodiment of the present invention.As shown in Figure 6, comprising:
Generation unit 61, be used to generate notification message, carrying eNB in this notification message is the sub-frame of uplink position that is used for the uplink of backhaul link of RN configuration or the descending sub frame position that is used for backhaul link downlink transfer, so that RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the HARQ timing relationship self preserved in advance;
Transmitting element 62 is used for this notification message is sent to RN.
Fig. 7 is the composition structural representation of via node embodiment of the present invention.As shown in Figure 7, comprising:
Receiving element 71 is used to receive the notification message from eNB, and carrying eNB in this notification message is the sub-frame of uplink position that is used for the uplink of backhaul link of RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
Determining unit 72 is used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the HARQ timing relationship self preserved in advance.
Wherein, described HARQ timing relationship comprises: the timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of PDSCH and sub-frame of uplink feedback, PUSCH and descending sub frame feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled.
Determining unit 72 comprises:
Extract subelement 721, be used for extracting the descending sub frame position that configuration that this notification message carries is given the sub-frame of uplink position that is used for the uplink of backhaul link of RN or is used for backhaul link downlink transfer;
Determine subelement 722, be used for and differ the descending sub frame position that is used for backhaul link downlink transfer that the position of four subframes is defined as failing to give notice with the sub-frame of uplink position of being notified that is used for the uplink of backhaul link; Perhaps, will differ the sub-frame of uplink position that is used for the uplink of backhaul link that the position of four subframes is defined as failing to give notice with the descending sub frame position of being notified that is used for backhaul link downlink transfer.
Perhaps, determining unit 72 comprises:
Extract subelement 721, be used for extracting the descending sub frame position that configuration that this notification message carries is given the sub-frame of uplink position that is used for the uplink of backhaul link of RN or is used for backhaul link downlink transfer;
Preserve subelement 723, be used to preserve three forms that set in advance, the timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of corresponding PDSCH of difference and sub-frame of uplink feedback, PUSCH and descending sub frame feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled, preserve the sub-frame of uplink position that is used for the uplink of backhaul link under this timing relationship in each form and be used for corresponding relation between the descending sub frame position of backhaul link downlink transfer;
Determine subelement 722, be used to utilize the sub-frame of uplink position of being notified that is used for the uplink of backhaul link,, determine the descending sub frame position that is used for backhaul link downlink transfer of failing to give notice by inquiring about described three forms; Perhaps, utilize the descending sub frame position of being notified that is used for backhaul link downlink transfer,, determine the sub-frame of uplink position that is used for the uplink of backhaul link of failing to give notice by inquiring about described three forms.
In addition, determine that subelement 722 also can be further used for, if when described three forms of inquiry, obtain two groups of above different Query Results, then judge in these the two groups above Query Results whether have common factor, if exist, the subframe position in then will occuring simultaneously is defined as required subframe position; If there is no, then the subframe position in the pairing Query Result of preassigned form is defined as required subframe position.
The concrete workflow of Fig. 6 and 7 shown device embodiment please refer to the respective description among the method embodiment, repeats no more herein.
In a word, adopt technical scheme of the present invention, eNB only needs and will dispose the sub-frame of uplink position that is used for the uplink of backhaul link of giving RN or a kind of RN of being notified to that is used for the descending sub frame position of backhaul link downlink transfer, follow-up RN can determine descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link voluntarily according to notification message that receives and the HARQ that self preserves in advance timing relationship.Compared with prior art, scheme of the present invention need not to notify simultaneously the position of the two kinds of subframes of up-downgoing that disposed, thereby has reduced signaling consumption.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a subframe positions acquisition methods is characterized in that, this method comprises:
A, via node RN receive the notification message from base station eNB, and carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
B, described RN determine descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
2. method according to claim 1 is characterized in that, described HARQ timing relationship comprises:
The timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of Physical Downlink Shared Channel PDSCH and sub-frame of uplink feedback, Physical Uplink Shared Channel PUSCH and descending sub frame feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled.
3. method according to claim 2 is characterized in that, if described RN and eNB work in the FDD pattern, then described step B comprises:
Described RN will differ the descending sub frame position that is used for backhaul link downlink transfer that the position of four subframes is defined as failing to give notice with the sub-frame of uplink position of being notified that is used for the uplink of backhaul link;
Perhaps, described RN will differ the sub-frame of uplink position that is used for the uplink of backhaul link that the position of four subframes is defined as failing to give notice with the descending sub frame position of being notified that is used for backhaul link downlink transfer.
4. method according to claim 2 is characterized in that, if described RN and eNB work in the TDD pattern, then described step B comprises:
In described RN, set in advance three forms, the timing relationship of the respectively timing relationship of the ACK/NACK that feeds back of corresponding described PDSCH and the timing relationship of the ACK/NACK of sub-frame of uplink feedback, described PUSCH and descending sub frame, and the descending sub frame of described transmission uplink scheduling information and the sub-frame of uplink that is scheduled; Preserve the sub-frame of uplink position that is used for the uplink of backhaul link under this timing relationship in each form and be used for corresponding relation between the descending sub frame position of backhaul link downlink transfer;
Described RN utilizes the sub-frame of uplink position of being notified that is used for the uplink of backhaul link, by inquiring about described three forms, determines the descending sub frame position that is used for backhaul link downlink transfer of failing to give notice; Perhaps, utilize the descending sub frame position of being notified that is used for backhaul link downlink transfer,, determine the sub-frame of uplink position that is used for the uplink of backhaul link of failing to give notice by inquiring about described three forms.
5. method according to claim 4 is characterized in that, if when described three forms of inquiry, obtains two groups of above different Query Results, and then this method further comprises:
Judge in described two groups of above Query Results whether have common factor,, then the subframe position in the described common factor is defined as required subframe position if exist;
If there is no, then the subframe position in the pairing Query Result of preassigned form is defined as required subframe position.
6. method according to claim 5 is characterized in that, described preassigned form is the pairing form of timing relationship of the ACK/NACK of described PDSCH and sub-frame of uplink feedback.
7. a subframe positions acquisition methods is characterized in that, this method comprises:
Base station eNB sends a notification message to via node RN, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer, so that described RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
8. a base station eNB is characterized in that, comprising:
Generation unit, be used to generate notification message, carry described eNB in the described notification message for the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of via node RN configuration or be used for the descending sub frame position of backhaul link downlink transfer, so that described RN determines descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance;
Transmitting element is used for described notification message is sent to described RN.
9. a via node RN is characterized in that, comprising:
Receiving element, be used to receive the notification message from institute's base station eNB, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
Determining unit, be used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
10. RN according to claim 9 is characterized in that, described HARQ timing relationship comprises:
The timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of Physical Downlink Shared Channel PDSCH and sub-frame of uplink feedback, Physical Uplink Shared Channel PUSCH and descending sub frame feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled.
11. RN according to claim 10 is characterized in that, described determining unit comprises:
Extract subelement, be used for extracting the descending sub frame position that configuration that described notification message carries is given the sub-frame of uplink position that is used for the uplink of backhaul link of described RN or is used for backhaul link downlink transfer;
Determine subelement, be used for and differ the descending sub frame position that is used for backhaul link downlink transfer that the position of four subframes is defined as failing to give notice with the sub-frame of uplink position of being notified that is used for the uplink of backhaul link; Perhaps, will differ the sub-frame of uplink position that is used for the uplink of backhaul link that the position of four subframes is defined as failing to give notice with the descending sub frame position of being notified that is used for backhaul link downlink transfer.
12. RN according to claim 10 is characterized in that, described determining unit comprises:
Extract subelement, be used for extracting the descending sub frame position that configuration that described notification message carries is given the sub-frame of uplink position that is used for the uplink of backhaul link of described RN or is used for backhaul link downlink transfer;
Preserve subelement, be used to preserve three forms that set in advance, the timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of corresponding described PDSCH of difference and sub-frame of uplink feedback, described PUSCH and descending sub frame feedback, and the timing relationship of the descending sub frame of described transmission uplink scheduling information and the sub-frame of uplink that is scheduled, preserve the sub-frame of uplink position that is used for the uplink of backhaul link under this timing relationship in each form and be used for corresponding relation between the descending sub frame position of backhaul link downlink transfer;
Determine subelement, be used to utilize the sub-frame of uplink position of being notified that is used for the uplink of backhaul link,, determine the descending sub frame position that is used for backhaul link downlink transfer of failing to give notice by inquiring about described three forms; Perhaps, utilize the descending sub frame position of being notified that is used for backhaul link downlink transfer,, determine the sub-frame of uplink position that is used for the uplink of backhaul link of failing to give notice by inquiring about described three forms.
13. RN according to claim 12, it is characterized in that, described definite subelement is further used for, if when described three forms of inquiry, obtain two groups of above different Query Results, then judge in described two groups of above Query Results whether have common factor, if exist, the subframe position in then will occuring simultaneously is defined as required subframe position; If there is no, then the subframe position in the pairing Query Result of preassigned form is defined as required subframe position.
14. a subframe positions is obtained system, it is characterized in that, comprising:
Base station eNB, be used for sending a notification message to via node RN, carrying described eNB in the described notification message is the sub-frame of uplink position that is used for the uplink of backhaul backhaul link of described RN configuration or the descending sub frame position that is used for backhaul link downlink transfer;
Described RN, be used for determining descending sub frame position that is used for backhaul link downlink transfer of failing to give notice or the sub-frame of uplink position that is used for the uplink of backhaul link according to described notification message and the automatic repeat requests HARQ timing relationship of mixing self preserved in advance.
15. system according to claim 14 is characterized in that, described HARQ timing relationship comprises:
The timing relationship of the ACK/NACK of the timing relationship of the ACK/NACK of Physical Downlink Shared Channel PDSCH and sub-frame of uplink feedback, Physical Uplink Shared Channel PUSCH and descending sub frame feedback, and send the descending sub frame of uplink scheduling information and the timing relationship of the sub-frame of uplink that is scheduled.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910082260A CN101867406B (en) | 2009-04-20 | 2009-04-20 | Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN) |
| PCT/CN2010/071864 WO2010118705A1 (en) | 2009-04-17 | 2010-04-19 | Resource scheduling method and system, base station and relay node |
| KR1020117027401A KR101224098B1 (en) | 2009-04-17 | 2010-04-19 | Resource scheduling method and system, base station and relay node |
| EP10764118.5A EP2421299B1 (en) | 2009-04-17 | 2010-04-19 | Resource scheduling method and system, base station and relay node |
| US13/275,285 US20120044852A1 (en) | 2009-04-17 | 2011-10-17 | Resource Scheduling Method and System, Base Station and Relay Node |
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| CN200910082260A CN101867406B (en) | 2009-04-20 | 2009-04-20 | Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN) |
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