CN102136897A - Method and system for transmitting timing advance command by adopting hybrid automatic repeat request (HARQ) way - Google Patents
Method and system for transmitting timing advance command by adopting hybrid automatic repeat request (HARQ) way Download PDFInfo
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Abstract
The invention discloses a method and a system for transmitting a timing advance command by adopting a hybrid automatic repeat request (HARQ) way. The set of method comprises that: before transmitting a new timing advance (TA) command, a base station judges whether the TA command exists in HARQ processing or not, and determines whether to transmit the new TA command or not according to a judgment result. The set of system comprises a TA judgment and transmission unit, wherein the TA judgment and transmission unit is used for the base station to judge whether the TA command exists in the HARQ processing or not before transmitting the new TA command and determine whether to transmit the new TA command or not according to the judgment result. By the method and the system provided by the invention, the problem of repeated TA regulation caused by the TA commands, born by different HARQ progresses, received by user equipment (UE).
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the method and system of a kind of employing HARQ mode transmitting time lead (TA, Timing Advance) order.
Background technology
In Long Term Evolution (LTE, Long Term Evolution) system, and subscriber equipment (UE, there is a TA in emission UserEquipment) with respect between receiving, and as shown in Figure 1, this TA has reflected the distance between UE and the evolution base station (eNodeB).ENodeB by adjusting the TA of UE, carries out up emission timing controlled according to receiving timing estimation, makes the moment that arrives eNodeB that transmits of the UE of diverse location in the sub-district keep alignment substantially, thereby avoids intersymbol interference and inter-carrier interference.
In the LTE system, eNodeB controls message (MAC PDU by media interviews, Medium AccessControl Protocol Data Unit) sends the TA order to UE, and adopt and mix the TA order that automatic repeat requests (HARQ, Hybrid Automatic Repeat Request) mode transmits MAC PDU and carrying thereof.When adopting the HARQ mode to transmit data, after eNodeB sends data, receive feedback acknowledgment (ACK/NACK), thereby determine that follow-up is to send new data or data retransmission from UE.If eNodeB does not receive the feedback of UE or receives negative feedback NACK after sending data, eNodeB will retransmit last bag data; Otherwise eNodeB can continue to send new data.
In the LTE system, downlink data transmission may comprise a plurality of HARQ processes, as shown in Figure 2, and under the situation of tdd mode and uplink- downlink configuration 1,7 HARQ processes (the 0th, 1,2,3,4,5, No. 6 HARQ process) are arranged, the corresponding subframe (1 millisecond) of the once transmission of each HARQ process.Among Fig. 2, when TA order is carried on No. 0 HARQ process, after (the 1st millisecond) sends and comprises the MAC PDU of TA for the first time, be at the feedback acknowledgment of the 7th millisecond of reception thereafter from UE, if do not receive positive feedback ACK, eNodeB will retransmit the previous MAC PDU that comprises TA at the 16th millisecond.Be that HARQ two-way time (HARQRTT, HARQ Round Trip Time) is 16 milliseconds with the time interval that sends for the second time No. 0 HARQ process for the first time.The time interval that sends for the first time No. 0 HARQ process and send for the third time is 32 milliseconds.
ENodeB estimates according to time of reception, and UE is up to be sent when deviation regularly occurring and satisfying the condition that sends the TA order when detecting, and sends TA to UE and adjusts order.The LTE standard code, UE adjusts up transmitting time in the time of will sending first after the N+6 subframe after the N subframe is received the TA order.If UE does not receive the TA order, just can not adjust up transmitting time.As shown in Figure 3, if UE does not receive the 1st millisecond of TA1 that No. 0 process sends for the first time, and received the TA1 that retransmits in the time of the 16th millisecond, UE will adjust up transmitting time in the time of the 23rd millisecond.So, sending for the first time at eNodeB, TA orders between the 23rd millisecond, existing a plurality of sub-frame of uplink, because UE does not carry out up transmitting time adjustment, eNodeB estimates to send new TA2 order according to time of reception probably, and this new TA2 order is carried on (No. 3 process) on another HARQ process.So UE retransmits order at the 16th millisecond of TA1 that has received No. 0 HARQ process carrying, again the 20th millisecond of TA2 order of having received No. 3 HARQ process carrying.And then UE is the up transmitting time of twice adjustment, causes to repeat to adjust and cause when up partially, and causes follow-up TA once more and adjusts.The scene that TA repeats to adjust is multiple in addition, for example the new TA2 order of the 20th millisecond of No. 3 process transmission also is just to be received by UE when retransmitting, for example the TA1 order that sends of the 1st millisecond of No. 0 process is received by UE retransmitting promptly the 32nd millisecond for the second time again, or the like.
In sum, the TA method of adjustment of prior art can cause TA to repeat to adjust under some scenes, thereby causes when up partially, influences the stability of uplink synchronous, has also wasted frequency spectrum resource.
China's application publication number is one piece of patent application of CN200910056048.3, provided solution though repeat adjustment at TA, but after only solving UE and receiving TA order, receive the problem that TA that TA order that same HARQ process retransmits is caused repeats to adjust once more.This problem is not lose and scene that HARQ positive feedback ACK loses at TA order, and send the scene of TA order for other, such as the problem of the scene of losing, promptly receive the TA order of different HARQ processes carryings and problem that the TA that causes repeats to adjust can not solve for UE at TA order.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of HARQ of employing mode to send the method and system of TA order, can solve UE and receive the TA order that different HARQ processes are carried and the problem that the TA of initiation repeats to adjust.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that adopts the order of HARQ mode transmitting time lead, this method comprises: before the base station sends new Timing Advance (TA) order, the base station judges whether the TA order in mixing automatic repeat requests (HARQ) processing procedure earlier, and determines whether to send new TA order according to judged result.
Wherein, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one is false, then the base station sends new TA order.
Wherein, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one is false, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order.
Wherein, described other TA send Rule of judgment comprise following any one:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time that the time ratio that the base station sends new TA sends a TA is value greatly at fixed time.
A kind of system that adopts the order of HARQ mode transmitting time lead, this system comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and determines whether to send new TA order according to judged result.
A kind of method that adopts the order of HARQ mode transmitting time lead, this method comprises: before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing media interviews control messages (MAC PDU) only to comprise described TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
Wherein, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then further check Rule of judgment two: the TA that has sent orders pairing MAC PDU only to comprise described TA order, does not comprise other MAC control cell and MACSDU;
Described Rule of judgment two is false if described Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one and described Rule of judgment two are all set up, then the base station stops the retransmission process of described HARQ process, sends new TA order then;
If described Rule of judgment one is false, then the base station sends new TA order.
Wherein, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then further check Rule of judgment two: the TA that has sent orders pairing MAC PDU only to comprise described TA order, does not comprise other MAC control cell and MACSDU;
Described Rule of judgment two is false if described Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one and described Rule of judgment two are all set up, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order; If will send new TA order, the base station stops the retransmission process of above-mentioned HARQ process, and sends new TA order;
If described Rule of judgment one is false, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order.
Wherein, described other TA send Rule of judgment comprise following any one:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time that the time ratio that the base station sends new TA sends a TA is value greatly at fixed time.
A kind of system that adopts the order of HARQ mode transmitting time lead, this system comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing MAC PDU only to comprise described TA order, determines whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
The present invention is before the base station sends new TA order, and the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and determines whether to send new TA order according to judged result.Perhaps, before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing MAC PDU only to comprise described TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.Adopt the present invention, can solve the problem that TA repeats to adjust under the different scenes.
Description of drawings
Fig. 1 is for describing the schematic diagram of Timing Advance TA definition;
Fig. 2 is for describing the schematic diagram of descending HARQ multi-process and descending HARQ two-way time;
Fig. 3 is for describing the schematic diagram that TA repeats to adjust in the prior art;
Fig. 4 sends the processing basic flow sheet for the TA of embodiment one correspondence among the present invention;
Fig. 5 sends the processing basic flow sheet for the TA of embodiment two correspondences among the present invention;
Fig. 6 sends the processing basic flow sheet for the TA of embodiment three correspondences among the present invention;
Fig. 7 sends the processing basic flow sheet for the TA of embodiment four correspondences among the present invention;
Fig. 8 is the structural representation of the embodiment of the invention five corresponding systems.
Embodiment
Basic thought of the present invention is: before the base station sent new TA order, the base station judged whether the TA order in carrying out the HARQ processing procedure earlier, and determined whether to send new TA order according to judged result.Perhaps, before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing MAC PDU only to comprise described TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
A kind of method that adopts the order of HARQ mode transmitting time lead, this method mainly comprises following content:
One, before the base station sends new TA order, judges whether the TA order in carrying out the HARQ processing procedure earlier, and determine whether to send new TA order, with the problem of avoiding TA to repeat to adjust according to judged result.Comprise following two kinds of specific implementation methods:
Method one:
The base station adopts the HARQ mode to send the TA order;
Terminal is carried out the transmitting time adjustment according to the TA value after receiving the TA order;
The base station is before sending new TA order, check Rule of judgment one: the base station has sent the TA order before this and has specified feedback not receive the positive feedback ACK of the HARQ process that this TA order is corresponding the time of reception at it, and this HARQ process does not reach maximum retransmission;
If above-mentioned Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on above-mentioned HARQ process, comprise the re-transmission of the TA that carries on the above-mentioned HARQ process, and does not send new TA order on other HARQ processes;
If above-mentioned Rule of judgment one is false, then the base station sends new TA order.
Here, set up at above-mentioned Rule of judgment one, then the base station does not send current new TA order, is to consider if the bad TA of causing of downlink quality loses, and new TA order also may terminal can not receive, and may cause a plurality of TA orders all retransmitting.If because of the up ACK that loses, the TA adjustment can come into force so, can not cause issuing again in short-term TA.And be false at above-mentioned Rule of judgment one, then the base station sends new TA order, can check further that other TA send Rule of judgment, as described in following method two, if need to check that other TA send Rule of judgment, detect continuous exit window number of times such as up timing, regularly require etc., can before the judgement of carrying out Rule of judgment one, check, perhaps after the judgement of carrying out Rule of judgment one, check.
Method two:
The base station adopts the HARQ mode to send the TA order;
Terminal is carried out the transmitting time adjustment according to the TA value after receiving the TA order;
The base station is before sending new TA order, check Rule of judgment one: the base station has sent the TA order before this and has specified feedback not receive the positive feedback ACK of the HARQ process that this TA order is corresponding the time of reception at it, and this HARQ process does not reach maximum retransmission;
If above-mentioned Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on above-mentioned HARQ process, comprise the re-transmission of the TA that carries on the above-mentioned HARQ process, and does not send new TA order on other HARQ processes;
If above-mentioned Rule of judgment one is false, illustrate that previous TA receives, then the base station checks that further other TA except that above-mentioned Rule of judgment one send Rule of judgment, to determine whether to send new TA order.
Further, described other TA transmission Rule of judgment comprise:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times; This is that TA adjusts the primary condition that order sends;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time ratio that the base station sends new TA sends the time of a TA (comprising the TA order that HARQ retransmits) greater than designated value, this fixed time value greater than but be not limited to 9 milliseconds.Come into force with the transmitting time adjustment that guarantees previous TA order, come into force, can come into force after maximum 9 milliseconds at first sub-frame of uplink of N+6.
A kind of system that adopts the order of HARQ mode transmitting time lead, this system mainly comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether earlier carrying out the TA order of HARQ processing procedure, and determines whether to send new TA order according to judged result.
Two, before the base station sends new TA order, judge whether the TA order in carrying out the HARQ processing procedure earlier, and TA orders pairing MAC PDU only to comprise this TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier, with the problem of avoiding TA to repeat to adjust.Comprise following two kinds of specific implementation methods:
Method 1:
The base station adopts the HARQ mode to send the TA order;
Terminal is carried out the transmitting time adjustment according to the TA value after receiving the TA order;
The base station is before sending new TA order, check Rule of judgment one: the base station has sent the TA order before this and has specified feedback not receive the positive feedback ACK of the HARQ process that this TA order is corresponding the time of reception at it, and this HARQ process does not reach maximum retransmission;
If above-mentioned Rule of judgment one is set up, then further check Rule of judgment two: the above-mentioned TA that sent orders pairing MAC PDU only to comprise this TA order, does not comprise other MAC control cell and MACSDU;
Rule of judgment two is false if above-mentioned Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on above-mentioned HARQ process, comprise the re-transmission of the TA that carries on the above-mentioned HARQ process, and does not send new TA order on other HARQ processes;
If above-mentioned Rule of judgment one and Rule of judgment two are all set up, then the base station stops the retransmission process of above-mentioned HARQ process, sends new TA order then;
If above-mentioned Rule of judgment one is false, then the base station sends new TA order.
Method 2:
The base station adopts the HARQ mode to send the TA order;
Terminal is carried out the transmitting time adjustment according to the TA value after receiving the TA order;
The base station is before sending new TA order, check Rule of judgment one: the base station has sent the TA order before this and has specified feedback not receive the positive feedback ACK of the HARQ process that this TA order is corresponding the time of reception at it, and this HARQ process does not reach maximum retransmission;
If above-mentioned Rule of judgment one is set up, then further check Rule of judgment two: the above-mentioned TA that sent orders pairing MAC PDU only to comprise this TA order, does not comprise other MAC control cell and MACSDU;
Rule of judgment two is false if above-mentioned Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on above-mentioned HARQ process, comprise the re-transmission of the TA that carries on the above-mentioned HARQ process, and does not send new TA order on other HARQ processes;
If above-mentioned Rule of judgment one and Rule of judgment two are all set up, then the base station checks that further other TA except that above-mentioned Rule of judgment one and Rule of judgment two send Rule of judgment, to determine whether to send new TA order.If will send new TA order, the base station stops the retransmission process of above-mentioned HARQ process, and sends new TA order;
If above-mentioned Rule of judgment one is false, then the base station checks that further other TA except that above-mentioned Rule of judgment one and Rule of judgment two send Rule of judgment, to determine whether to send new TA order.
Further, described other TA transmission Rule of judgment comprise:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times; This is that TA adjusts the primary condition that order sends;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time ratio that the base station sends new TA sends the time of a TA (comprising the TA order that HARQ retransmits) greater than designated value, this fixed time value greater than but be not limited to 9 milliseconds.Come into force with the transmitting time adjustment that guarantees previous TA order, come into force, can come into force after maximum 9 milliseconds at first sub-frame of uplink of N+6.
A kind of system that adopts the order of HARQ mode transmitting time lead, this system comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing MAC PDU only to comprise described TA order, determines whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
In sum, adopt the present invention, compared with prior art, can solve TA repeat to adjust and cause up the time inclined to one side problem, further guarantee the stability of uplink synchronous, and can save frequency spectrum resource.A kind ofly be: by send new TA order in the base station before, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and determines whether to send new TA order according to judged result; If the TA order of carrying out in the HARQ processing procedure is arranged, just do not send new TA order; If do not carrying out the TA order in the HARQ processing procedure, just send this new TA order, can avoid TA to repeat to adjust.Another kind is: further, when ordering pairing MAC PDU only to comprise this TA order at TA, before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier, repeat to adjust to avoid TA.
Below to the present invention's elaboration of giving an example.
Embodiment one:
As shown in Figure 4, base station of the present invention sends the flow chart of TA order, mainly may further comprise the steps:
Step 102 when above-mentioned primary condition satisfies, is further judged: whether sent the TA order before this and specified feedback not receive the positive feedback ACK of the HARQ process that it is corresponding the time of reception at it.
Here the TA order transmission flow that it is pointed out that prior art comprises: the base station is calculated new TA and is judged whether to satisfy the primary condition that TA sends; The base station determines whether to send new TA according to above-mentioned judged result.As seen: the present invention compares with the TA order transmission flow of prior art, the condition judgment that does not have step 102 in the prior art, only when TA transmission primary condition satisfies in the step 101, the base station just sends new TA order, so, might cause terminal to receive the re-transmission of new TA order and old TA order in succession, as shown in Figure 3, and then cause terminal to repeat to adjust the transmitting time lead.Corresponding diagram 3, if use method of the present invention, before the 20th millisecond of base station was ready for sending TA2, the HARQ feedback that is checked through TA1 did not receive that the base station will can not send TA2; Then, after the base station was being received the feedback that TA1 retransmits subsequently, the adjustment that and then just can detect TA1 came into force, therefore can not issue new TA order, promptly can not cause TA to repeat adjustment.
Embodiment two:
As shown in Figure 5, base station of the present invention sends the flow chart of TA order, mainly may further comprise the steps:
Here the TA order transmission flow that it is pointed out that prior art comprises: the base station is calculated new TA and is judged whether to satisfy the primary condition that TA sends; The base station determines whether to send new TA according to above-mentioned judged result.As seen: the present invention compares with the TA order transmission flow of prior art, does not have the condition judgment of step 201 in the prior art.
Embodiment three:
As shown in Figure 6, base station of the present invention sends the flow chart of TA order, mainly may further comprise the steps:
Step 302 when above-mentioned primary condition satisfies, is further judged: whether sent the TA order before this and specified feedback not receive the positive feedback ACK of the HARQ process that it is corresponding the time of reception at it.If judged result is for denying the TA order that the base station transmission is new.
Here, if step 303 condition does not satisfy, then the base station does not send current new TA order.
Here the TA order transmission flow that it is pointed out that prior art comprises: the base station is calculated new TA and is judged whether to satisfy the primary condition that TA sends; The base station determines whether to send new TA according to above-mentioned judged result.As seen: the present invention compares with the TA order transmission flow of prior art, the condition judgment that does not have step 302 and step 303 in the prior art, also do not have the operation that HARQ retransmits that stops of step 304, but only when TA in the step 301 sends primary condition and satisfies, the base station just sends new TA and orders.
Embodiment four:
As shown in Figure 7, base station of the present invention sends the flow chart of TA order, mainly may further comprise the steps:
Step 401, the base station is judged: whether sent the TA order before this and specified feedback not receive the positive feedback ACK of the HARQ process that it is corresponding the time of reception at it.If judged result is for denying the TA order that the base station transmission is new.
Step 402, if step 401 Rule of judgment is set up, further check and judge: the above-mentioned TA that sent orders pairing MAC PDU only to comprise this TA order, does not comprise other MAC control cell and MACSDU.
Step 403, if step 402 judged result is for being, other conditions of judging the TA transmission are further checked in the base station.
Step 404, if step 403 condition satisfies, the base station stops the retransmission process of above-mentioned HARQ process, sends new TA order then.
Here, if step 403 condition does not satisfy, then the base station does not send current new TA order.
Here the TA order transmission flow that it is pointed out that prior art comprises: the base station is calculated new TA and is judged whether to satisfy the primary condition that TA sends; The base station determines whether to send new TA according to above-mentioned judged result.As seen: the present invention compares with the TA order transmission flow of prior art, does not have the operation of the condition judgment and the step 404 of step 401 and step 402 in the prior art.
Embodiment five:
As shown in Figure 8, base station of the present invention sends TA process of commands system schematic, corresponding to the description of the foregoing description one,, then be divided into TA judge module and TA sending module if TA judgement and transmitting element in the principle of the invention description are divided into separately independently functional module.The system of present embodiment mainly comprises 4 modules: TA judge module, TA sending module, TA logging modle, HARQ process processing module.Wherein, TA judge module 601 is used to judge whether primary condition that TA sends satisfies and judges that further whether the HARQ feedback of previous TA order is received, judges according to the information of TA logging modle record.TA sending module 602 is used for sending TA under the situation that the primary condition of judging the TA transmission is all set up; Otherwise do not send.TA logging modle 603, be used for sending TA order at every turn after, whether TA logging modle record has sent TA and whether has received its HARQ feedback, and notice HARQ process processing module has been carried the TA order.HARQ process processing module 604 is used for after the HARQ positive feedback of receiving the TA order, and notice TA logging modle is upgraded corresponding information.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. method that adopts the order of HARQ mode transmitting time lead, it is characterized in that, this method comprises: before the base station sends new Timing Advance (TA) order, the base station judges whether the TA order in mixing automatic repeat requests (HARQ) processing procedure earlier, and determines whether to send new TA order according to judged result.
2. method according to claim 1 is characterized in that, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one is false, then the base station sends new TA order.
3. method according to claim 1 is characterized in that, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one is false, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order.
4. method according to claim 3 is characterized in that, described other TA send Rule of judgment comprise following any one:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time that the time ratio that the base station sends new TA sends a TA is value greatly at fixed time.
5. system that adopts the order of HARQ mode transmitting time lead, it is characterized in that, this system comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and determines whether to send new TA order according to judged result.
6. method that adopts the order of HARQ mode transmitting time lead, it is characterized in that, this method comprises: before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing media interviews control messages (MAC PDU) only to comprise described TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
7. method according to claim 6 is characterized in that, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then further check Rule of judgment two: the TA that has sent orders pairing MAC PDU only to comprise described TA order, does not comprise other MAC control cell and MACSDU;
Described Rule of judgment two is false if described Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one and described Rule of judgment two are all set up, then the base station stops the retransmission process of described HARQ process, sends new TA order then;
If described Rule of judgment one is false, then the base station sends new TA order.
8. method according to claim 6 is characterized in that, described when determining whether to send new TA order according to judged result, this method also comprises:
The base station is before sending new TA order, check Rule of judgment one: sent the TA order before the base station and specified feedback not receive the positive feedback ACK of the HARQ process that described TA order is corresponding the time of reception, and described HARQ process does not reach maximum retransmission at it;
If described Rule of judgment one is set up, then further check Rule of judgment two: the TA that has sent orders pairing MAC PDU only to comprise described TA order, does not comprise other MAC control cell and MACSDU;
Described Rule of judgment two is false if described Rule of judgment one is set up, and then the base station does not send current new TA order; The base station is dispatched its HARQ and is retransmitted on described HARQ process, comprise the re-transmission of the TA that carries on the described HARQ process, and does not send new TA order on other HARQ processes;
If described Rule of judgment one and described Rule of judgment two are all set up, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order; If will send new TA order, the base station stops the retransmission process of above-mentioned HARQ process, and sends new TA order;
If described Rule of judgment one is false, then the base station checks that further other TA send Rule of judgment, determines whether to send new TA order.
9. method according to claim 8 is characterized in that, described other TA send Rule of judgment comprise following any one:
The base station detects and receives the continuous exit window of timing estimation above predetermined number of times;
The base station detects the reception timing estimation and satisfies assign thresholds;
The time that the time ratio that the base station sends new TA sends a TA is value greatly at fixed time.
10. system that adopts the order of HARQ mode transmitting time lead, it is characterized in that, this system comprises: TA judges and transmitting element, be used for before the base station sends new TA order, the base station judges whether the TA order in carrying out the HARQ processing procedure earlier, and described TA orders pairing MAC PDU only to comprise described TA order, determine whether to send new TA order according to judged result, if will send new TA order, then before the base station sends new TA order, stop to have sent out the HARQ retransmission process of TA order earlier.
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| WO2023207365A1 (en) * | 2022-04-24 | 2023-11-02 | 华为技术有限公司 | Timing advance report sending method and apparatus |
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Application publication date: 20110727 Assignee: Xi'an Chris Semiconductor Technology Co.,Ltd. Assignor: SANECHIPS TECHNOLOGY Co.,Ltd. Contract record no.: 2019440020036 Denomination of invention: Method and system for transmitting timing advance command by adopting hybrid automatic repeat request (HARQ) way Granted publication date: 20151216 License type: Common License Record date: 20190619 |
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